CN114909167A - Support unit and support system - Google Patents

Abstract

The embodiments of the present invention relate to a support unit and a support system. The support unit includes a retracted state and an expanded state, the support unit includes a support frame and a support assembly, the support assembly is rotatably connected to the support frame, and the support assembly can Rotates between a support position and a home position; wherein, when the support frame is in a retracted state, the support assembly is in the support position and is configured to be supported by another support unit, the other support unit is in an expanded state, and the support assembly Removably connected to the other support unit such that the support unit can move relative to the other support unit.

Description

Support unit and support system

technical field

The present invention generally relates to the field of mining technology, and in particular, to a support unit and a support system.

Background technique

With the development of mining technology, the effective support of the roadway roof has also put forward higher requirements. However, the methods of moving the support unit forward proposed in the related art all have the problems of low efficiency and high labor intensity of workers, which cannot meet production needs.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a support unit and a support system with high support efficiency.

The support unit of the embodiment of the present invention includes a retracted state and an expanded state, the support unit includes a support frame and a support assembly, the support assembly is rotatably connected to the support frame, and the support assembly can be in a support position and the original position;

Wherein, when the support frame is in a retracted state, the support assembly is in a support position and is configured to be supported by another support unit, the other support unit is in an expanded state, and the support assembly can is movably connected to the further support unit such that the support unit is movable relative to the further support unit.

According to some embodiments of the present invention, the support assembly includes:

a fixed seat, fixedly connected to the support frame;

a turret, which is rotatably connected to the fixed seat;

A wheel set movably connected to the turret, the wheel set configured to be supported by the further support unit.

According to some embodiments of the present invention, the turret includes a guide space having a strip-shaped opening, and when the support assembly is in the support position, the guide space extends along the width direction of the roadway;

the strip-shaped opening extends along the guide space;

Part of the wheel set is movably accommodated in the guide space through the bar-shaped opening.

According to some embodiments of the present invention, the wheel set includes a first wheel set, a penetration portion, a mounting portion, and a second wheel set;

The first roller set is rotatably connected to one end of the through portion, and the through portion passes through the bar-shaped opening and can move along the bar-shaped opening;

The installation part is connected to the other end of the penetration part, the second roller set is rotatably connected to the installation part, and the second roller set is movably connected to a rail, the other support The guard unit is supported on the rail.

According to some embodiments of the present invention, the mounting portion includes:

a connecting plate, connected to the penetration portion;

Two opposite side plates, the two side plates are connected to the side of the connecting plate away from the through portion, the second roller set is arranged between the two side plates, and can be rotatably connected to the two side panels;

Wherein, the rail is movably arranged between the two side plates.

According to some embodiments of the present invention, the axis of the first roller set is perpendicular to the axis of the second roller set.

According to some embodiments of the present invention, the support assembly further includes a stopper, and the stopper is provided at one end of the guide space for stopping the wheel set from being detached from the guide space.

According to some embodiments of the present invention, the support assembly further includes a locking structure for fixing the support assembly in the support position.

According to some embodiments of the present invention, the support assembly includes a fixed seat and a turret, the fixed seat is fixedly connected to the supporting frame, and the turret is rotatably connected to the fixed seat; the turret The end connected with the fixed seat has a pushing surface and a stop surface;

The locking structure includes a hook, the hook is rotatably connected to the fixing seat, and can be rotated between the clamping position and the releasing position;

The hook includes a connecting portion, an operating portion and a hook portion, the connecting portion is rotatably connected to the turret, the operating portion is connected to the connecting portion, and is configured for a user to operate the operating portion through the operating portion. The hook rotates;

The hook part is connected to the connection part, and when the hook is in the clamping position, one side of the hook part can cooperate with the stop surface to fix the support assembly in the support position; The other side of the hook can be matched with the pushing surface, and when the turret moves from the original position to the supporting position, the pushing surface can push the other side of the hook, so that The hook rotates from the clamping position to the releasing position until the hook returns to the clamping position.

The support system of the embodiment of the present invention includes the support unit described in any one of the above.

An embodiment of the above invention has the following advantages or beneficial effects:

The support unit of the embodiment of the present invention includes a support frame and a support assembly rotatably connected to the support frame, and the support assembly can rotate between a support position and an original position. When the support unit is in the retracted state and the support assembly is in the support position, the support unit can be supported by another support unit in the expanded state, and the support unit can move forward relative to the other support unit by means of the support assembly , so as to achieve advanced active support. In the embodiment of the present invention, the support unit in the retracted state is forwarded in a cyclic progressive manner to actively support the roadway roof, which significantly improves the support efficiency and greatly reduces the labor intensity of workers.

Description of drawings

The above and other features and advantages of the present invention will become more apparent from the detailed description of example embodiments thereof with reference to the accompanying drawings.

FIG. 1 shows a perspective view of a support system according to an embodiment of the present invention.

FIG. 2 shows a front view of the support system according to the embodiment of the present invention.

FIG. 3 shows a side view of the support system according to the embodiment of the present invention.

FIG. 4 shows a perspective view of a support unit according to an embodiment of the present invention.

FIG. 5 shows a side view of the support unit according to the embodiment of the present invention.

FIG. 6 shows a perspective view of a rotating bracket according to an embodiment of the present invention.

FIG. 7 shows a side view of the rotating bracket according to the embodiment of the present invention.

FIG. 8 shows a perspective view of a support assembly according to an embodiment of the present invention.

Figure 9 shows a side view of a support assembly of an embodiment of the present invention.

FIG. 10 shows a top view of the support assembly according to the embodiment of the present invention.

FIG. 11 is a schematic structural diagram showing the engagement of the hook and the turret according to the embodiment of the present invention.

FIG. 12 shows a perspective view of the connection mechanism of the embodiment of the present invention.

FIG. 13 shows a top view of the connecting mechanism according to the embodiment of the present invention.

FIG. 14 shows a side view of the connecting mechanism of the embodiment of the present invention.

FIG. 15 shows an enlarged view at J in FIG. 14 .

Figure 16 shows a perspective view of a track according to an embodiment of the present invention.

Figure 17 shows a front view of a track of an embodiment of the present invention.

Figure 18 shows a side view of a track of an embodiment of the present invention.

FIG. 19 shows an enlarged view at K in FIG. 18 .

Among them, the reference numerals are described as follows:

1. Supporting frame;

11, middle beam; 12, corner beam; 13, vertical beam; 14, first drive mechanism; 15, second drive mechanism; 16, guide rod; 171, first mounting seat; 172, second mounting seat; 18, Installation column; 19. Telescopic beam;

2. Rotating bracket;

21, frame body; 211, accommodating groove; 212, opening; 213, groove; 22, cover body; 23, stopper; 24, lifting assembly; 25, magnetic part; 26, locking assembly; 261, lock hook; 262, lock ring;

3. Support components;

31, fixed seat; 32, turret; 321, guide space; 322, strip opening; 323, stop surface; 324, push surface; 33, wheel set; 331, first roller set; 332, penetration part; 333, installation part; 333a, connecting plate; 333b, side plate; 334, second roller group; 34, hook; 341, connecting part; 342, operating part; 343, hook part; 343a, one side; 343b, the other one side; 35, stopper;

4. Connection mechanism;

41, connecting part; 411, sleeve part; 412, rod part; 413, hinge part; 42, first rotating part; 43, second rotating part; 44, locking part; 45, fixing block; 451, through hole ;

5. Track;

51, guide rail; 511, I-beam; 5111, middle beam; 5112, the first side beam; 5113, the second side beam; 512, the first angle steel; 5121, side plate; 5122, the other side plate; 513, the first Diagonal steel; 5131, side plate; 5132, the other side plate; 52, wheel frame; 521, first roller; 522, second roller; 523, mounting frame; 5231, first plate; 5232, second plate; 5233 53, the first winch; 54, the second winch; 55, the stopper; 56, the reinforcement assembly; 57, the guide space; 58, the strip opening;

A, the first group; B, the second group.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

As shown in FIG. 1 and FIG. 2 , FIG. 1 shows a perspective view of a support system according to an embodiment of the present invention. FIG. 2 shows a front view of the support system according to the embodiment of the present invention. The support system of the embodiment of the present invention includes a plurality of support units and rails 5 . Each support unit includes a contracted state and an expanded state, and each support unit can be switched between the contracted state and the expanded state. The support unit in the contracted state has a small area relative to the support unit in the expanded state. The support unit in the expanded state can support the roadway, such as the roof of the roadway. The support unit in the contracted state can be transported from the support unit in the expanded state.

The multiple support units are divided into two groups, which are the support units of the first group A and the support units of the second group B. The support units of the first group A are in an expanded state, and the support units of the second group B are in an expanded state. contracted state. For example, as shown in FIG. 1 and FIG. 2 , the support units of the first group A include 14 support units in an expanded state, and the support units of the second group B include 2 support units in a contracted state .

As shown in FIG. 1 and FIG. 2 , when the second group B supporting units in the front are in the process of transitioning from the contracted state to the expanded state, the two rear supporting units A13 and A14 in the first group A supporting units It can be switched from the expanded state to the contracted state synchronously. After the two supporting units A13 and A14 are converted to the contracted state, they can be transported forward through the track 5, for example, to the middle position of the area covered by the first group A of supporting units. When the second group B supporting units in the front are completely converted to the expanded state, the two supporting units A13 and A14 are transferred to the positions shown in FIG.

As shown in FIG. 3 to FIG. 5 , FIG. 3 shows a side view of the support system according to the embodiment of the present invention. FIG. 4 shows a perspective view of a support unit according to an embodiment of the present invention. FIG. 5 shows a side view of the support unit according to the embodiment of the present invention. Each support unit in the embodiment of the present invention includes a support frame 1 , a rotating bracket 2 and a support assembly 3 . The support frame 1 can perform a contraction or expansion action to realize the contraction or expansion of the support unit, and how the support frame 1 realizes the contraction or expansion will be described in detail later.

The rotating bracket 2 is rotatably connected to the supporting frame 1 . In this embodiment, each supporting unit includes two rotating brackets 2 , which are arranged opposite to each other and are respectively rotatably connected to the two vertical beams 13 of the supporting frame 1 . The swivel bracket 2 is rotatable between a carrying position and a stowed position. In the carrying position, the rotating bracket 2 can carry the rail 5, and the rail 5 is movably connected to the rotating bracket 2. In this embodiment, the two rotating brackets 2 in the bearing position are arranged opposite to each other, and both extend toward the inside of the support frame 1 .

The support assembly 3 is rotatably connected to the support frame 1 . In this embodiment, each support unit includes four support assemblies 3 , the four support assemblies 3 are divided into two pairs, and the two pairs of support assemblies 3 are respectively disposed on the two vertical beams 13 of the support frame 1 . Each support assembly 3 is rotatable between a support position and a home position. In the supporting position, the rail 5 can carry the supporting assembly 3 so that the supporting units of the second group B can be lifted by the rotating bracket 2 . The support assembly 3 is movably connected to the rail 5 .

Wherein, during the forward movement of the support units of the second group B relative to the track 5, the rotating bracket 2 of the support units of the first group A located behind the support units of the second group B can be retracted by The swivel bracket 2 in front of the support unit of the second group B can be rotated from the carrying position to the stowed position, so that the rear swivel bracket 2 replaces the front swivel bracket 2 .

The working process of the support system according to the embodiment of the present invention will be described in detail below with reference to FIG. 2 . For example, the support units of the first group A include 14 support units, namely A1, A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, and A14. Among them, the rotating brackets 2 of A3 and A10 are in the bearing position, carrying the rail 5, and the rotating brackets 2 of the remaining supporting units in the first group A of supporting units are all in the retracted position. The positions of the rotating brackets 2 of the supporting units A3 and A10 may be as shown in FIG. 3 , and the rotating brackets 2 of the remaining supporting units may be as shown in FIG. 4 .

The support units of the second group B to be conveyed should first be removed by the tail in the support units of the first group A (transition from the expanded state to the contracted state). The support assembly 3 of each support unit of the second group B of support units is in the support position, the support assembly 3 is carried by the rails 5 carried by the rotating brackets 2 of the support units A3 and A10 described above.

In the supporting units of the first group A, except the rotating brackets 2 of the supporting units A3 and A10 are in the carrying position, the rest are in the stowed position, so the rotating brackets 2 of the remaining supporting units will not be in contact with each other. The support units of the second group B, which are conveyed forward, interfere with their motions. Therefore, the support units of the second group B will pass through A14, A13, A12 and A11 in sequence during the forward transmission. When the second set of B supporting units is transferred to A10, since the rotating bracket 2 of A10 is in the bearing position, as shown in FIG. At this time, for example, the rotating bracket 2 of the A12 can be rotated to the bearing position to support the rail 5, so that the rail 5 always has two or more supporting points. When the swivel bracket 2 of A12 is carried on the track 5, since the track 5 has three supporting points (A3, A10 and A12), the swivel bracket 2 of the A10 can be rotated to the retracted position to prevent it from blocking the first Two groups of B support units. Then the second group of B support units can continue to transmit forward and pass through A10, A9, A8, A7, A6, A5 and A4 in sequence. When the second group of B supporting units is blocked from being transferred to A3, the same method as above can be used, for example, the rotating bracket of A6 can be replaced with the rotating bracket of A3, so that the second group of B supporting units can pass through A3, A2 in turn. and A1, and finally sent to the front of the first group of A support units. Finally, the track 5 and the second group of B support units are transported forward as a whole, so that the second group of B support units extends out of the range covered by the first group of A support units, so as to complete the support of the second group of B support units. Action of the roadway roof.

Of course, it can be understood that the above-mentioned replacement of A10's swivel bracket 2 with A12's swivel bracket 2 and A6's swivel bracket 2 instead of A3's swivel bracket 2 are only used as examples for description. Personnel can make adjustments according to factors such as the force of the bearing rail 5 of the rotating bracket 2 and/or the number of the second group B supporting units.

In the support system of the embodiment of the present invention, the support unit in the retracted state is forwarded in a cyclic progressive manner to actively support the roof of the roadway, which significantly improves the support efficiency and greatly reduces the labor intensity of workers. .

In addition, when the supporting units of the second group are transferred forward, the supporting units of the second group can be temporarily stored in the middle of the coverage area of the supporting units of the first group to become prefabricated supporting units. After the support unit is converted into an expanded state, the prefabricated support unit is forwarded. At the same time, the operator can disassemble the support unit located behind the first group to continue forwarding. Through such a design, the transmission of the support unit and the disassembly of the rear support unit can be operated in parallel, which further improves the support efficiency.

In one embodiment, the support frame 1 of the embodiment of the present invention includes two vertically arranged vertical beams 13, two corner beams 12, two telescopic beams 19 and a middle beam 11, and both ends of the middle beam 11 are hinged respectively. At one end of the two telescopic beams 19 , the other ends of the two telescopic beams 19 are respectively telescopically connected to one end of the two corner beams 12 , and the two vertical beams 13 are respectively connected to the other ends of the two corner beams 12 . The support frame 1 also includes two first driving mechanisms 14 and two second driving mechanisms 15, the two first driving mechanisms 14 are configured to drive the two angle beams 12 to extend and retract relative to the two telescopic beams 19, respectively. The two second driving mechanisms 15 are configured to drive the two vertical beams 13 to move, respectively, so that the support frame 1 is switched between the contracted state and the expanded state.

Specifically, the two first driving mechanisms 14 can respectively drive the two angle beams 12 to expand and contract relative to the two telescopic beams 19 , so that the support frame 1 can contract or expand along the width direction. The two second driving mechanisms 15 respectively drive the two vertical beams 13 to contract or expand relative to the two corner beams 12 along the height direction. Combined with the first driving mechanism 14 and the second driving mechanism 15, the supporting frame 1 can be expanded or contracted as a whole.

In one embodiment, the first driving mechanism 14 and the second driving mechanism 15 are both hydraulic rods. One end of the first driving mechanism 14 is hinged to the corner beam 12 , the other end is hinged to the telescopic beam 19 , and one end of the second driving mechanism 15 is hinged. It is connected to the corner beam 12 , and the other end is connected to the vertical beam 13 . Of course, it can be understood that the above-mentioned first and second driving mechanisms 15 may also adopt cylinder rods or other suitable driving mechanisms.

When the first drive mechanism 14 drives the telescopic beam 19 to extend and retract relative to the corner beam 12 , since the telescopic beam 19 is hinged to the middle beam 11 , the telescopic beam 19 can rotate relative to the middle beam 11 around the hinge point. When the support frame 1 is stretched, the middle beam 11, the two telescopic beams 19 and the two corner beams 12 form an arch, that is, the middle beam 11 is slightly higher than the two telescopic beams 19, so as to better support the roadway roof . Compared with the supporting frame in the related art, the supporting frame of the embodiment of the present invention can realize pressure relief when it is subjected to the pressure of the top plate, so as to prevent the top plate from bending the frame.

It can be understood that the present invention does not limit the specific structure of the support frame 1 to achieve shrinkage or expansion. The above-mentioned middle beam 11, corner beam 12, telescopic beam 19 and vertical beam 13 are only used as examples for illustration, but not limited to this.

The structure and working principle of the rotating bracket 2 according to the embodiment of the present invention will be described in detail below with reference to FIG. 6 and FIG. 7 . FIG. 6 shows a perspective view of the rotating bracket 2 according to the embodiment of the present invention. FIG. 7 shows a side view of the rotating bracket 2 according to the embodiment of the present invention. When the rotating bracket 2 in the embodiment of the present invention is in the bearing position, it is configured as a bearing track 5 and forms a moving pair with the track 5 , and the track 5 can move forward relative to the rotating bracket 2 .

The rotating bracket 2 in the embodiment of the present invention includes a frame body 21 , and one end of the frame body 21 is rotatably connected to the support frame 1 . The other end of the frame body 21 is provided with an accommodating slot 211 at the position facing the track 5 . The accommodating slot 211 is used for accommodating the wheel frame 52 of the track 5 , and part of the wheel frame 52 is movably accommodated in the accommodating slot 211 . The frame body 21 can be perpendicular to the vertical beam 13 of the supporting frame 1 , and can rotate relative to the supporting frame 1 between the bearing position and the retracted position.

The accommodating groove 211 has an opening 212 , and the wheel frame 52 can enter and exit the accommodating groove 211 through the opening 212 . The rotating bracket 2 further includes a cover body 22 , the cover body 22 is rotatably connected to the frame body 21 , and the cover body 22 includes a closed state and an open state relative to the frame body 21 . In the closed state, the cover 22 covers part of the accommodating groove 211 , so that the wheel frame 52 is confined in the accommodating groove 211 . In the open state, the cover 22 does not cover the accommodating groove 211 , and the wheel frame 52 can enter and exit the accommodating groove 211 through the opening 212 .

The rotating bracket 2 further includes a stopper 23 configured to selectively stop the cover body 22 from rotating. One end of the stopper 23 is hinged to the frame body 21, and includes an open state and a closed state relative to the frame body 21; when the stopper 23 is in the open state, the cover body 22 can be rotated from the closed state to the open state, when the stopper 23 is in the open state When the cover 23 is in the closed state, the other end of the stopper 23 is inserted into a groove 213 of the frame body 21 to stop the cover body 22 from rotating.

In one embodiment, the wheel frame 52 of the track 5 includes a first roller 521 and a second roller 522 , and the first roller 521 is movably connected to the guide rail 51 of the track 5 . The second roller 522 is defined in the accommodating groove 211 by the cover body 22 , and the second roller 522 is movably accommodated in the accommodating groove 211 . The moving direction of the second roller 522 in the accommodating groove 211 is along the width direction of the roadway. By arranging the second roller to be movably accommodated in the accommodating groove 211 along the width direction of the roadway, when the second group B supporting units are conveyed forward, the second group B supporting units can be relatively The first group A of support units moves along the width direction of the roadway, so that the support system of this embodiment can be adapted to roadways in different situations. For example, when the side wall of the roadway is convex or the roadway is not linearly arranged, so that the multiple side-by-side support units of the first group A are not aligned along the direction of the roadway, but are staggered from each other, the support units of the second group B are not aligned along the roadway. During the forward conveying process, the wheel frame 52 can slide relative to the frame body 21 in the width direction, thereby ensuring that the second group B supporting units can continue to be conveyed forward without jamming.

The following describes in detail how to replace the front rotating bracket 2 with the rear rotating bracket 2 with reference to FIG. 2 . Continuing from the above, when the rotating bracket 2 of A10 is replaced with the rotating bracket 2 of A12, the stopper 23 and the cover 22 of the rotating bracket 2 of A12 are both in an open state, so that a wheel frame on the track 5 is opened. 52 can enter the accommodating groove 211 through the opening 212 . After the wheel frame 52 enters the accommodating groove 211 , the cover 22 and the stopper 23 are closed in sequence, so that the wheel frame 52 is confined in the accommodating groove 211 , thereby realizing the A12 rotating bracket 2 carrying the track 5 .

After that, the wheel bracket 52 in the rotating bracket 2 of the support unit A10 is removed from the accommodating groove 211, and the rotating bracket 2 of the A10 is rotated to the retracted position. At this point, the rotating bracket 2 of the A12 is completed. Replaces swivel bracket 2 for A10.

The rotating bracket 2 according to the embodiment of the present invention further includes a lifting assembly 24 . The lifting assembly 24 is connected to the frame body 21 and is used for lifting and lowering the frame body 21 . In the actual mining environment, the roadway may have a slope, and the multiple side-by-side support units in the first group of A support units are not aligned as shown in Figure 2, but staggered up and down. together. Through the design of the lift assembly 24 , the height of each rotating bracket 2 can be adjusted according to the slope of the roadway, so that the frame body 21 can carry the wheel frame 52 of the track 5 .

In this embodiment, the lifting assembly 24 may be a jack. Of course, in other embodiments, the lifting assembly 24 may also adopt other components with lifting functions, which will not be listed one by one here.

The rotating bracket 2 in the embodiment of the present invention further includes a magnetic member 25. The magnetic member 25 is disposed on the frame body 21 and is configured to be magnetically adsorbed on the supporting frame 1 when the rotating bracket 2 is in the retracted position, so as to The swivel bracket 2 is defined in the retracted position. Through the design of the magnetic member 25, the rotating bracket 2 can be limited to the retracted position, so as to prevent the rotating bracket 2 not carrying the rail 5 from rotating unexpectedly, thereby affecting the transmission of the second group B supporting units. In one embodiment, the magnetic member 25 may be a permanent magnet.

The rotating bracket 2 of the embodiment of the present invention further includes a locking assembly 26 configured to lock the rotating bracket 2 when the rotating bracket 2 is in the bearing position. As shown in FIG. 4 , in this embodiment, the locking assembly 26 includes a locking hook 261 and a locking ring 262 . The locking hook 261 is movably connected to the vertical beam of the support frame 1 along the vertical direction, and the locking ring 262 is provided at the on the frame body 21 . When the frame body 21 is rotated to the bearing position, the lock hook 261 can be inserted into the lock ring 262 to lock the frame body 21 .

Of course, it can be understood that, the locking assembly 26 in the embodiment of the present invention may also select other components with locking function, which are not listed one by one here.

The structure and working principle of the support assembly 3 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 8 to 11 . FIG. 8 shows a perspective view of the support assembly 3 according to the embodiment of the present invention. FIG. 9 shows a side view of the support assembly 3 according to the embodiment of the present invention. FIG. 10 shows a top view of the support assembly 3 according to the embodiment of the present invention. FIG. 11 is a schematic structural diagram showing the engagement of the hook and the turret according to the embodiment of the present invention.

The support assembly 3 in the embodiment of the present invention is rotatably connected to the support frame 1 of the support unit, and the support assembly 3 can rotate between the support position and the original position. When the second set of B support units is conveyed, the support assembly 3 is in the support position and is configured to be supported by the track 5, and the support assembly 3 is movably connected to the track 5 so that the second set of B support units can be opposed to each other It is transported forward in the first group A support unit.

The support assembly 3 of the embodiment of the present invention includes a fixed base 31, a turret 32 and a wheel set 33. The fixed base 31 is fixedly connected to the support frame 1, the rotating frame 32 is rotatably connected to the fixed base 31, and the wheel set 33 is movably connected. Connected to the turret 32 , the wheel set 33 is configured to be supported by the rail 5 .

The turret 32 has a guide space 321. When the support assembly 3 is in the support position, the guide space 321 extends along the width direction of the roadway. The guide space 321 has a bar-shaped opening 322. The bar-shaped opening 322 extends along the guide space 321. The group 33 is movably accommodated in the guide space 321 through the bar-shaped opening 322 .

By configuring the wheel set 33 to be able to move along the guide space 321 and the guide space 321 extending along the width direction of the roadway, when the support unit is conveyed forward, the support unit of the second group B can be made to be relative to the first group B. A group of A support units moves along the width direction of the roadway, so that the support system of this embodiment can be adapted to roadways in different situations. For example, when the sidewall of the roadway is convex or the roadway is not linearly arranged, so that the first group A supporting units arranged side by side are not aligned along the roadway direction, but staggered from each other, the wheel set 33 can be relative to the turret. 32 slips, thereby ensuring that the second group of B support units can continue to be transported forward without jamming.

The wheel set 33 includes a first roller set 331 , a penetration portion 332 , a mounting portion 333 and a second roller set 334 . The first roller set 331 is rotatably connected to one end of the penetration portion 332 and can be movably accommodated in the guide space 321 . The through portion 332 penetrates through the bar-shaped opening 322 and can move along the bar-shaped opening 322 .

The mounting portion 333 is connected to the other end of the penetration portion 332 and is located outside the guide space 321 . The second roller group 334 is rotatably connected to the mounting portion 333 , and the second roller group 334 is movably connected to a rail 5 , and the supporting units of the second group B are supported on the rail 5 .

The mounting portion 333 includes a connecting plate 333a and two opposite side plates 333b. The connecting plate 333a is connected to the through portion 332, and the two side plates 333b are connected to the side of the connecting plate 333a away from the through portion 332. The second roller set 334 is provided. Between the two side plates 333b and rotatably connected to the two side plates 333b, the rail 5 is movably provided between the two side plates 333b.

The axis of the first roller group 331 is perpendicular to the axis of the second roller group 334, so that the wheel group can move along the width direction of the roadway relative to the turret 32 through the first roller group 331, and the support unit can be relative to another support unit The unit moves in the fore-and-aft direction of the roadway.

The support assembly 3 according to the embodiment of the present invention further includes a stopper 35 , and the stopper 35 is provided at one end of the guide space 321 for stopping the wheel set from disengaging from the guide space 321 .

The support assembly 3 in the embodiment of the present invention further includes a locking structure for locking the support assembly 3 at the support position.

One end of the turret 32 connected to the fixed seat 31 has a pushing surface 324 and a stop surface 323. In one embodiment, the locking structure includes a hook 34, and the hook 34 is rotatably connected to the fixed seat 31 and can be clamped position and release position. The hook 34 includes a connection part 341 , an operation part 342 and a hook part 343 , the connection part 341 is rotatably connected to the turret 32 , and the operation part 342 is connected to the connection part 341 , and is configured for the user to operate the hook 34 through the operation part 342 to rotate .

The hook portion 343 is connected to the connection portion 341 . When the hook 34 is in the clamping position, one side 343 a of the hook portion 343 can cooperate with the stop surface 323 to fix the support assembly 3 in the support position. The other side 343b of the hook portion 343 can cooperate with the pushing surface 324. When the turret 32 moves from the original position to the supporting position, the pushing surface 324 can push against the other side of the hook portion 343, so that the hook 34 is locked. It is pushed by the turret 32 and rotates from the clamping position to the releasing position. When the pushing surface 324 is disengaged from the other side 343b of the hook portion 343, due to the gravitational force of the hook 34, the hook 34 will be released from the loose position again. The open position is moved to the clamping position until one side 343a of the hook portion 343 continues to cooperate with the stop surface 323 of the turret 32 to lock the turret 32 in the supporting position.

Through the design of the hook 34, when the operator needs to move the turret 32 from the support position to the original position, the operator only needs to pull the operation part 342 of the hook 34 upward, and the turret 32 can be rotated to the original position. At the same time, although the turret 32 is disengaged from the hook 34, the hook 34 will remain in the locked position due to the gravity of the hook 34 itself.

When the operator needs to move the turret 32 from the original position to the supporting position, he only needs to move the turret 32 upward, and the abutting surface of the turret 32 gradually pushes against the other side of the hook 34, so that the hook 34 is free from the hook 34. The tightening position is gradually moved to the loosening position until one side 343 a of the hook portion engages with the stop surface 323 again, so that the hook 34 locks the turret 32 .

Accordingly, the operator can complete the locking or loosening of the turret 32 with only one action, which is convenient for operation and saves time.

In one embodiment, one side surface of the hook 34 that matches the pushing surface 324 is an arc surface.

As shown in FIG. 4 and FIG. 5 , each support unit in the embodiment of the present invention further includes a connecting mechanism 4 for connecting two adjacent support units to limit the distance between the two support units. On the one hand, by limiting the distance between the two support units, one of the support units can be prevented from being inclined relative to the other support unit, thereby affecting the support effect. On the other hand, connecting two adjacent support units to each other improves the structural strength between the two support units and further improves the support strength.

The structure and working principle of the connecting mechanism 4 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 12 to 15 . FIG. 12 shows a perspective view of the connection mechanism 4 according to the embodiment of the present invention, FIG. 13 shows a top view of the connection mechanism 4 according to the embodiment of the present invention, and FIG. 14 shows the side view of the connection mechanism 4 according to the embodiment of the present invention. view, FIG. 15 shows an enlarged view at J in FIG. 14 .

The connecting mechanism 4 in the embodiment of the present invention is used to connect two adjacently arranged supporting units, such as a first supporting unit and a second supporting unit, to prevent one supporting unit from tilting relative to the other supporting unit , affecting the support effect. Further, the first support unit may be the roof already supported on the roadway, that is, the support unit located at the most front end in the first group A of support units. The second support unit is not supported on the roadway roof, that is, the second group of B support units. Through the design of the connection mechanism 4 in the embodiment of the present invention, the distance between the first supporting unit and the second supporting unit can be limited, so as to prevent the tilting when the second supporting unit is propped up. Of course, it can be understood that the connecting mechanism 4 can also connect two adjacent supporting units in the first group A supporting units; or, two adjacent supporting units in the second group B supporting units protection unit.

The connection mechanism 4 in the embodiment of the present invention includes a locking component and a fixing component. One end of the locking component is connected to the first supporting unit, and the fixing component is connected to the second supporting unit. The other end of the locking assembly is configured to be able to be locked to the fixing assembly to define a distance between the first supporting unit and the second supporting unit.

The first support unit includes a first support body 1a, two oppositely disposed first mounting seats 171 and guide rods 16, the two first mounting seats 171 are spaced apart along the vertical direction, and the wire rods are along the vertical direction Connected to the two first mounts 171 , the locking assembly can move along the guide rod 16 . Through the design of the guide rod 16 , the connecting mechanism 4 of the embodiment of the present invention can move along the guide rod 16 , so as to prevent the connecting mechanism 4 from being stuck with the first support unit when the second support unit is propped apart.

The second support unit includes a second support body 1b, two oppositely arranged second mounting seats 172 and mounting posts 18, the two second mounting seats 172 are spaced apart along the vertical direction, and the mounting posts 18 are connected to the two second mounting seats 172. Two mounting bases 172 are used for connecting the fixing components.

Along the vertical direction, one end of the locking assembly is movably connected to the first supporting unit, and the other end of the locking assembly is locked to the fixing assembly.

In one embodiment, the fixing assembly includes a fixing block 45 , the fixing block 45 has a through hole 451 , and the mounting post 18 passes through the through hole 451 of the fixing block 45 .

In one embodiment, the locking assembly includes a connecting piece 41 and a locking member, one end of the connecting piece 41 is connected to the first support unit, and the locking member is hinged to the other end of the connecting piece 41 and can be detachably locked on the fixed block 45.

In one embodiment, the connector 41 includes a sleeve portion 411 , a rod portion 412 and a hinge portion 413 . The sleeve portion 411 is provided at one end of the rod portion 412 , and the hinge portion 413 is provided at the other end of the rod portion 412 . The sleeve portion 411 is sleeved on the outside of the guide rod 16 of the first supporting unit, and can move along the guide rod 16 . The hinge portion 413 is hinged with the locking member.

The locking member includes a first rotating member 42 , a second rotating member 43 and a locking member 44 . One end of the first rotating member 42 is hinged to the hinge portion 413 of the connecting member 41 , and one end of the second rotating member 43 is hinged to the connecting member 41 . The hinge portion 413, the first rotating member 42 and the second rotating member 43 can rotate relative to each other around the hinge point. The locking member 44 can lock the first rotating member 42 and the second rotating member 43, so that the fixing block 45 is sandwiched between the first rotating member 42 and the second rotating member 43, in other words, the first rotating member 42 The fixed block 45 is clamped with the second rotating member 43 .

In one embodiment, the first rotating member 42 has a first through hole (not shown), and the second rotating member 43 has a second through hole (not shown) corresponding to the first through hole. The locking member 44 is a locking bolt, and the locking bolt passes through the first through hole and the second through hole to lock the first rotating member 42 and the second rotating member 43 .

The fixed block 45 can be in the shape of a cube, and the first rotating member 42 and the second rotating member 43 can press against two opposite sides of the fixed block 45 respectively. The first rotating member 42 and the second rotating member 43 are locked to each other by the locking member 44, so that the first rotating member 42 is in frictional contact with one side of the fixed block 45, and the second rotating member 43 is opposite to the other side of the fixed block 45. The side friction contact finally achieves the limitation of the distance between the first support unit and the second support unit, so as to prevent one of the support units from tilting and affect the support effect.

In one embodiment, the surface roughness of the two opposite sides of the fixing block 45 is larger than the surface roughness of the other sides of the fixing block 45 . In this way, the friction force between the locking member and the fixing block 45 can be larger, and the locking effect is better.

The structure and working principle of the track 5 according to the embodiment of the present invention will be described in detail below with reference to FIGS. 16 to 19 . FIG. 16 shows a perspective view of the track 5 according to the embodiment of the present invention, FIG. 17 shows the front view of the track 5 according to the embodiment of the present invention, and FIG. 18 shows the side view of the track 5 according to the embodiment of the present invention. FIG. 19 shows an enlarged view at K in FIG. 18 .

The track 5 of the embodiment of the present invention is applied to a support system and is used to transport the support units of the second group B. The track 5 includes a guide rail 51 and a wheel frame 52. The guide rail 51 is configured to carry the support units of the second group B. , the supporting units of the second group B are movable relative to the guide rail 51 . The wheel frame 52 is suspended from the guide rail 51 and is movably connected to the guide rail 51. The wheel frame 52 is configured to abut against the rotating bracket 2 of the support unit of the first group A. The guide rail 51 is relative to the support of the first group A. The guard unit can be moved. Wherein, the second group B support units are in a contracted state, and the first group A support units are in an expanded state.

The track 5 in the embodiment of the present invention includes a guide rail 51 and a wheel frame 52 suspended on the guide rail 51 , and the wheel frame 52 is movably connected to the guide rail 51 . The guide rail 51 can carry the second group of B support units in a retracted state, the wheel frame 52 can abut against the rotating bracket 2 of the first group of A support units in an expanded state, and by means of the rail 5, the second group B supports The unit is able to move forward relative to the first set of A support units to achieve advanced support.

The track 5 of the embodiment of the present invention further includes a first winch 53 and a second winch 54 . The first winch 53 is provided at one end of the guide rail 51 and is configured to drive the second group B supporting units to move forward relative to the guide rail 51 . The second winch 54 is provided at the other end of the guide rail 51, and is configured to drive the rail 5 to move forward relative to the first group of A support units.

Specifically, the first winch 53 can be connected to the second set of B support units. When the first winch 53 is working, the second set of B support units can be pulled by the first winch 53 forward relative to the track 5 move. The second winch 54 can be connected to the first set of A support units. Since the first set of A support units is in an expanded state, the first set of A support units can abut on the roof of the roadway, so the first set of A support units The unit is fixed, and when the second winch 54 is in operation, the track 5 can move forward relative to the first set of A support units.

The guide rail 51 in the embodiment of the present invention may include a top portion and two opposite side portions, and one ends of the two side portions are respectively connected to two opposite sides of the top portion to form a guide space 57 . The other ends of the two side portions are spaced apart to form strip-shaped openings 58 .

In one embodiment, the top portion may be an I-beam 511 , and the two side portions may be a first angle steel 512 and a second angle steel 513 respectively.

The I-beam 511 includes a middle beam 5111 , a first side beam 5112 and a second side beam 5113 , and the middle beam 5111 is vertically arranged between the first side beam 5112 and the second side beam 5113 . The second side beam 5113 is located below the first side beam 5112 . The first angle steel 512 includes two mutually perpendicular side plates, and the second angle steel 513 includes two mutually perpendicular side plates. One side plate 5121 of the first angle steel 512 and one side plate 5131 of the second angle steel 513 are respectively connected to two opposite sides of the second side beam 5113 and are perpendicular to the second side beam 5113 . The other side plate 5122 of the first angle steel 512 and the other side plate 5132 of the second angle steel 513 are both parallel to the second side beam 5113 and arranged at intervals.

The second side beam 5113 , the first angle steel 512 and the second angle steel 513 form a guide space 57 . The guide space 57 is used for movably accommodating the part of the wheel carrier 52 therein. The other side plate 5122 of the first angle steel 512 and the other side plate 5132 of the second angle steel 513 form a strip-shaped opening 58 , and the strip-shaped opening 58 communicates with the guide space 57 . The mounting bracket 523 can pass through the bar-shaped opening 58 .

The wheel frame 52 includes an installation frame 523 , a first wheel set and a second wheel set. The first wheel set is connected to one end of the installation frame 523 , and the second wheel set is connected to the other end of the installation frame 523 . The first wheel set is movably accommodated in the guide space 57 , and the second wheel set is disposed outside the guide space 57 and can abut against the rotating bracket 2 of the first set of A support units.

In one embodiment, the first wheel group includes two first rollers 521 arranged in pairs, the second wheel group includes four second rollers 522 arranged in pairs, and the axis of the first rollers 521 is perpendicular to the second rollers 522 axis. The two first rollers 521 are respectively rotatably connected to the other side plate 5122 of the first angle steel 512 and the other side plate 5132 of the second angle steel 513 . At the same time, when the wheel frame 52 is in contact with the second supporting unit, the two first rollers 521 are in contact with the second side beam 5113 to realize the bearing rail 5 of the rotating bracket 2 of the first group A supporting unit.

The mounting frame 523 of the embodiment of the present invention includes a first plate 5231, a second plate 5232 and a third plate 5233. The two first rollers 521 are rotatably connected to the first plate 5231, and the first plate 5231 passes through the strip opening 58. And can move along the strip opening 58 . The width of the strip opening 58 may be slightly larger than the thickness of the first plate 5231 . The second plate 5232 is horizontally disposed and connected to the first plate 5231 . The second plate 5232 may be perpendicular to the first plate 5231 . The four second rollers 522 are rotatably connected to the third plate 5233 , the third plate 5233 is vertically arranged and connected to the second plate 5232 , and the third plate 5233 may be perpendicular to the second plate 5232 .

The track 5 of the embodiment of the present invention further includes a plurality of reinforcing components 56 , which are arranged at intervals along the track 5 , and the reinforcing components 56 are connected to the I-beam 511 , the first angle steel 512 and the second angle steel 513 , for example, by welding , so as to improve the structural strength of the guide rail 51 .

The track 5 in the embodiment of the present invention further includes two stoppers 55 , which are respectively disposed at both ends of the guide space 57 to stop the wheel frame 52 and prevent the wheel frame 52 from leaving the guide space 57 .

To sum up, the advantages and beneficial effects of the support unit and the support system according to the embodiments of the present invention are:

In the support unit and the support system of the embodiment of the present invention, the support unit in the retracted state is forwarded in a cyclic progressive manner to actively support the roof of the roadway, which significantly improves the support efficiency and greatly reduces the labor intensity of workers.

In addition, when the supporting units of the second group are transferred forward, the supporting units of the second group can be temporarily stored in the middle of the coverage area of the supporting units of the first group to become prefabricated supporting units. After the support unit is converted into an expanded state, the prefabricated support unit is forwarded. At the same time, the operator can disassemble the support unit located behind the first group to continue forwarding. Through such a design, the transmission of the support unit and the disassembly of the rear support unit can be operated in parallel, which further improves the support efficiency.

In the embodiments of the invention, the terms "first", "second" and "third" are only used for the purpose of description, and cannot be construed as indicating or implying relative importance; the term "plurality" refers to two or two more than one, unless otherwise expressly limited. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the invention according to specific situations.

In the description of the embodiments of the invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the embodiments of the invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore should not be construed as implementing the invention. example limitations.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiment", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in the practice of the invention at least one embodiment or example of an example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above are only preferred embodiments of the embodiments of the invention, and are not intended to limit the embodiments of the invention. For those skilled in the art, the embodiments of the invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the embodiments of the invention should be included within the protection scope of the embodiments of the invention.

Claims (10)

1. A support unit, comprising a contracted state and an expanded state, wherein the support unit comprises: support frame; a support assembly rotatably connected to the support frame, the support assembly can be rotated between a support position and a home position; Wherein, when the support frame is in a retracted state, the support assembly is in a support position and is configured to be supported by another support unit, the other support unit is in an expanded state, and the support assembly can is movably connected to the further support unit such that the support unit is movable relative to the further support unit. 2. The support unit according to claim 1, wherein the support assembly comprises: a fixed seat, fixedly connected to the support frame; a turret, which is rotatably connected to the fixed seat; A wheel set movably connected to the turret, the wheel set configured to be supported by the further support unit. 3 . The support unit according to claim 2 , wherein the turret comprises a guide space with a strip-shaped opening, and when the support assembly is in the support position, the guide space is along the width direction of the roadway. 4 . extend; the strip-shaped opening extends along the guide space; Part of the wheel set is movably accommodated in the guide space through the bar-shaped opening. 4. The support unit according to claim 3, wherein the wheel set comprises a first roller set, a penetration portion, an installation portion and a second roller set; The first roller set is rotatably connected to one end of the through portion, and the through portion passes through the bar-shaped opening and can move along the bar-shaped opening; The installation part is connected to the other end of the penetration part, the second roller set is rotatably connected to the installation part, and the second roller set is movably connected to a rail, the other support The guard unit is supported on the rail. 5. The support unit according to claim 4, wherein the mounting portion comprises: a connecting plate, connected to the penetration portion; Two opposite side plates, the two side plates are connected to the side of the connecting plate away from the through portion, the second roller set is arranged between the two side plates, and can be rotatably connected to the two side panels; Wherein, the rail is movably arranged between the two side plates. 6. The support unit according to claim 4, wherein the axis of the first roller set is perpendicular to the axis of the second roller set. 7 . The support unit according to claim 3 , wherein the support assembly further comprises a stopper, the stopper is provided at one end of the guide space, and is used to stop the wheel set from moving from 7 . The guide space is disengaged. 8. The support unit according to claim 1, wherein the support assembly further comprises a locking structure for fixing the support assembly in the support position. 9 . The support unit according to claim 8 , wherein the support assembly comprises a fixed seat and a turret, the fixed seat is fixedly connected to the support frame, and the turret is rotatably connected to the support frame. 10 . the fixed seat; one end of the turret connected to the fixed seat has a pushing surface and a stop surface; The locking structure includes a hook, the hook is rotatably connected to the fixing seat, and can be rotated between the clamping position and the releasing position; The hook includes a connecting portion, an operating portion and a hook portion, the connecting portion is rotatably connected to the turret, the operating portion is connected to the connecting portion, and is configured for a user to operate the operating portion through the operating portion. The hook rotates; The hook part is connected to the connection part, and when the hook is in the clamping position, one side of the hook part can cooperate with the stop surface to fix the support assembly in the support position; The other side of the hook can be matched with the pushing surface, and when the turret moves from the original position to the supporting position, the pushing surface can push the other side of the hook, so that The hook rotates from the clamping position to the releasing position until the hook returns to the clamping position. 10. A support system, characterized by comprising the support unit according to any one of claims 1 to 9.

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