CN117345310A - A crawler self-moving adjustable hydraulic support - Google Patents

Abstract

The invention discloses a crawler self-moving type adjustable hydraulic support, which relates to the technical field of underground mining of coal mines and comprises a crawler self-moving assembly and a top beam assembly, wherein the crawler self-moving assembly comprises a walking crawler, a walking frame, a door type bearing frame, a top beam and a coal pushing plate; the front part of the hydraulic support is provided with the cantilever beam, the anchor net is automatically clung to the top plate through the cantilever beam hydraulic cylinder, the timely forward support is realized, and the cooperative fit with the heading machine and the anchor rod drill carriage is realized. The problem that the prior art is difficult to adapt to complex roadway roof support is solved, zero overhead operation in the tunneling process is realized, sliding friction between a top beam and a roof is reduced, the service life of equipment is prolonged, and the stability of the whole frame is enhanced.

Description

A crawler self-moving adjustable hydraulic support

Technical field

The invention relates to the technical field of underground coal mine mining, and is specifically a crawler self-moving adjustable hydraulic support, which belongs to the technical field of underground hydraulic supports in coal mines.

Background technique

In recent years, with the development of coal mining technology and the continuous improvement of mining mechanization, the connection time of the excavation working face has become shorter and shorter, and equipment handling operations have become increasingly frequent. Hydraulic support handling equipment has become a key part of advance support in the rapid excavation process. .

At present, single pillars are generally used for advanced support underground in coal mines, and manual assistance is required to complete the support operations, which greatly increases the labor intensity of workers and leads to problems such as low support efficiency, low quality, and poor safety performance; secondly, The existing self-moving hydraulic supports have poor stability, slow moving speed, and poor adaptability to more complex tunnels, which greatly restricts their application scope. In order to improve production efficiency and operation safety, and achieve mechanized support, it is necessary to The support equipment supporting the operation requires flexible and rapid movement, simple operation, and convenient withdrawal, and synchronous support needs to be achieved. Therefore, the present invention proposes a crawler self-moving adjustable hydraulic support to solve the problems existing in the prior art.

Contents of the invention

In order to solve the problems of poor stability of existing hydraulic support equipment, slow moving speed and poor adaptability to complex tunnels, the present invention provides a crawler self-moving adjustable hydraulic support, which realizes zero empty head operation during the excavation process. By lifting the hydraulic cylinder The free telescopic lifting height adjusts the angle of the row-type staggered structure, which can adapt to roof support operations in complex tunnels and enhance the stability of the overall frame.

The technical solution of the present invention is: a crawler self-moving adjustable hydraulic support, which includes a crawler self-moving assembly and a top beam assembly. It is characterized in that: the crawler self-moving assembly includes a walking crawler, a walking frame, and a portal. Bearing frame, roof beam and coal pushing board. The entire equipment relies on walking tracks and walking frames to drive the equipment. The portal carrier is used to support the roof beam assembly. The top beam is located above the door-type load-bearing frame, both sides of the two groups of door-type load-bearing frames are provided with lifting components, and the top beam assembly is located above the lifting component;

The top beam assembly includes cross beams, down beams and overhang beams. The cross beams are provided with multiple groups symmetrically left and right. The down beams are provided with multiple groups and are located above the cross beams to form a row-type staggered structure. The row-type staggered structure Relying on the lifting assembly to rise and fall freely to support the roof, the cantilever beam is hinged to the crossbeam on one side of the row-type staggered structure, and is driven to flip by the cantilever beam hydraulic cylinder, so that the anchor net is autonomously close to the roof; the two ends of the row-type staggered structure are Side supports are hinged on the cross beams, and the side supports are driven by the side support hydraulic cylinder to extend outward to support the side legs. Both ends below the row-type staggered structure are hinged with column hydraulic cylinder supports to prevent the overall frame from shifting.

Further improvement lies in: the two sets of walking crawlers and walking frames, the walking frames are respectively installed on the walking crawlers, and the walking crawlers drive the body to achieve fast and accurate walking and overall turning;

A further improvement is that the lifting hydraulic cylinder is located inside the lifting assembly, and the lifting hydraulic cylinder telescopically drives the row-type staggered structure hinged above the lifting inner sleeve to lift, and the lifting height of the lifting hydraulic cylinder is freely telescopic to adjust the angle of the row-type staggered structure. , timely support the roof;

A further improvement is that the cantilever hydraulic cylinder is located below the cantilever beam, and there are two groups. The cantilever beam hydraulic cylinder telescopically drives the cantilever beam in front of the row staggered structure to flip up and down to ensure that the anchor net is autonomously close to the roof. ;

A further improvement is that: the coal pushing plate is arranged at the front end of the walking frame. During the crawler walking process of the body, the coal pushing plate cleans the floating coal in front of the crawler to protect the body from deflecting;

A further improvement is that the side support hydraulic cylinders are located on both sides of the row-type staggered structure. During the body support process, the side support hydraulic cylinders telescope to drive the side supports to extend outward, support the tunnel support panels in time, and adjust the bracket position.

A further improvement is that the column hydraulic cylinders are located under the cross beams, and are provided with multiple groups. The column hydraulic cylinders expand and contract downward after being connected to the top of the row-type staggered structure. Through grounding, the single pillar can bear strong bearings and adapt to the fluctuations of the floor. , to prevent the overall frame from shifting.

The beneficial effects of the present invention are: 1. By freely telescopically adjusting the height of the lifting hydraulic cylinder to adjust the angle of the row-type staggered structure, it can adapt to the fluctuations and inclination changes of the tunnel roof, and promptly support the roof exposed due to slabs or newly exposed after the tunnel boring machine digs. The roof can effectively control the roof falling, realize the self-stabilization of the structure, ensure the safety of operators, and strengthen the stability of the overall frame; 2. The self-moving crawler type is used to ensure zero-empty operation of the tunnel boring machine, achieving fast and accurate walking, which is easy to implement Turning as a whole reduces the sliding friction between the roof beam and the roof plate, and improves the service life of the equipment; 3. There is a cantilever beam in the front of the hydraulic support, and the anchor net can be autonomously attached to the roof plate through the cantilever beam hydraulic cylinder, achieving timely forward support and realizing Cooperate with tunnel boring machine and anchor drilling rig; 4. The front end of the crawler track is equipped with a coal pushing plate, which can clean the floating coal in front of the crawler track, ensure the stable walking of the crawler track, avoid gaps in the roof support due to the non-parallel crawler track, and enhance safety. Performance; 5. Make full use of the load-bearing performance of the single pillar to give full play to the strong load-bearing effect of the single pillar. At the same time, it has strong adaptability to the fluctuations of the floor to avoid uneven ground causing the overall frame to shift; 6. The hydraulic support adopts a split external connection The unique power source controls the lifting cylinder, with a lightweight structure and simplified process, realizing a lightweight design of coal mine machinery.

Description of drawings

Figure 1 is a front view of the present invention;

Figure 2 is a side view of the present invention;

Figure 3 is a front view of the crawler self-moving assembly of the present invention;

Figure 4 is a side view of the crawler self-moving assembly of the present invention;

Figure 5 is a front view of the roof beam assembly of the present invention;

Figure 6 is a first side view of the roof beam assembly of the present invention;

Figure 7 is a second side view of the roof beam assembly of the present invention;

Figure 8 is a top view of the roof beam assembly of the present invention.

Among them: 1. Walking track, 2. Walking frame, 3. Portal carrier, 4. Top beam, 5. Coal pushing board, 6. Cross beam, 7. Along beam, 8. Overhead beam, 9. Side support, 10 , Column hydraulic cylinder, 11. Lifting outer sleeve, 12. Lifting inner sleeve, 13. Lifting hydraulic cylinder, 14. Connecting middle beam, 15. Cantilever hydraulic cylinder, 16. Side support hydraulic cylinder.

Detailed ways

In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to examples. This example is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

Embodiment 1

As shown in Figures 1, 2, 3, 4, 5, 6, 7, and 8, this embodiment proposes a crawler self-moving adjustable hydraulic support, including a crawler self-moving assembly and a top beam assembly. The self-moving crawler assembly includes walking crawlers 1, walking frame 2, gantry carrier 3, roof beam 4 and coal pushing plate 5. The walking crawler 1, walking frame 2 and gantry carrier 3 are each provided with two groups. Two groups of walking frames 2 are respectively provided on two groups of walking crawlers 1, two groups of gantry carriers 3 are respectively provided on two groups of walking frames 2, and the top beam 4 is provided on the gantry carrier. Above the frame 3, two groups of portal carriers 3 are provided with lifting components on both sides, and the top beam assembly is located above the lifting components;

The top beam assembly includes a cross beam 6, a down beam 7 and an overhang beam 8. The cross beam 6 is provided with multiple groups symmetrically left and right. The down beam 7 is provided with multiple groups and is located above the cross beam 6 to form a staggered row. structure, the cantilever beam 8 is hinged to the cross beam 6 on one side of the row staggered structure. The cross beams 6 at both ends of the row staggered structure are hinged with side supports 9, and the side supports 9 are provided with multiple groups. Column hydraulic cylinders 10 are hinged at both ends below the staggered structure. The angle of the staggered row structure can be adjusted by freely telescopic lifting height of the lifting hydraulic cylinder 13, which can better meet the roof support operation of complex tunnels with different inclination angles and enhance the stability of the overall frame. There are parallel beams 7 and 7 arranged in a row above. Beam 6 has good strength and a large contact area. It can promptly support the roof exposed due to fragmentation or the roof newly exposed after the tunnel boring machine digs. It can effectively control the roof falling and ensure the safety of the operators. Side beams are arranged on both sides. The support 9 can support the tunnel support plate, and can also adjust the position of the overall support, which enhances the stability and puts the overall support in a supporting state of grounding, top connection, and support. There is also a cantilever beam 8 installed at the front end. Retrieval enables timely forward support and auxiliary permanent tunnel support operations.

The lifting assembly includes a lifting outer sleeve 11, a lifting inner sleeve 12 and a lifting hydraulic cylinder 13. The lifting outer sleeve 11 is installed on the portal carrier 3, and the lifting inner sleeve 12 is nested in the lifting outer sleeve. In the sleeve 11, the upper end of the lifting inner sleeve 12 is hingedly connected with the cross beam 6 of the top beam assembly.

One end of the lifting hydraulic cylinder 13 is hinged to the connecting lug in the lifting outer sleeve 11, and the output end of the lifting hydraulic cylinder 13 is hinged to the connecting lug in the lifting inner sleeve 12. The telescopic movement of the lifting hydraulic cylinder 13 drives the The top beam assembly hinged above the lifting inner sleeve 12 is lifted and lowered.

The cross beams 6 are arranged left and right symmetrically, and the groups of the cross beams 6 on the left and right sides are respectively fixed by connecting middle beams 14.

A cantilever hydraulic cylinder 15 is connected between the cantilever beam 8 and the row-type staggered structure, and there are two groups of cantilever beam hydraulic cylinders 15. One end of the cantilever beam hydraulic cylinder 15 and the lower end of the crossbeam 6 on one side are connected. The connecting lug is hinged, and the output end of the cantilever hydraulic cylinder 15 is hinged with the connecting lug at the lower end of the cantilever 8. The telescopic hydraulic cylinder 15 drives the cantilever 8 to flip up and down.

A side support hydraulic cylinder 16 is connected between the side support 9 and the row-type staggered structure, and one end of the side support hydraulic cylinder 16 is hinged on the cross beam 6, and the output end of the side support hydraulic cylinder 16 is hinged with the side support 9. And the side support hydraulic cylinder 16 telescopically drives the side support 9 to extend outward.

The column hydraulic cylinder 10 is provided with multiple groups. The output end of each group of the column hydraulic cylinder 10 is hinged with the left and right sides of the crossbeam 6, and the column hydraulic cylinder 10 is used for telescopic grounding.

Embodiment 2

According to Figures 1, 2, 3, 4, 5, 6, 7, and 8, this embodiment proposes a crawler self-moving adjustable hydraulic support, including a crawler self-moving assembly and a top beam assembly; The crawler self-moving assembly is installed below the roof beam assembly. It is the load-bearing component of the device and the implementation mechanism for movement in the tunnel;

The crawler self-moving assembly is composed of walking crawler 1, walking frame 2, portal carrier 3, roof beam 4, lifting outer sleeve 11, lifting hydraulic cylinder 13, lifting inner sleeve 12, and coal pushing plate 5; the walking There are two pieces of frame 2, which are installed above the left and right walking tracks 1 respectively; there are two pieces of gantry carrier 3, which are symmetrically installed above the left and right walking frames 2; the top beam 4 is fixed on top of the gantry carrier 3. ; There are four pieces of lifting outer sleeves 11, which are respectively installed on the sides of the portal carrier 3; There are four pieces of lifting inner sleeves 12, which are respectively nested in the lifting outer sleeve 11, and the upper end is assembled with the top beam. The crossbeam 6 is hinged; there are four lifting hydraulic cylinders 13 in total, one end of the cylinder body is hinged with the connecting lug in the lifting outer sleeve 11, and one end of the telescopic rod is hinged with the connecting lug in the lifting inner sleeve 12. The lifting hydraulic cylinder The telescopic cylinder 13 can drive the top beam assembly hinged above the lifting inner sleeve 12 to extend upward until it reaches the top; the coal pushing plate 5 is a total of two pieces, which are symmetrically installed on the front side of the walking frame 2 to realize the coal cleaning function. , ensure the bracket is placed stably and improve safety performance.

The top beam assembly is composed of a cross beam 6, a down beam 7, a cantilever beam 8, a cantilever beam hydraulic cylinder 15, a column hydraulic cylinder 10, a side support 9, a side support hydraulic cylinder 16, and a connecting middle beam 14; the cross beam 6 totals Six pieces, symmetrically arranged left and right, with the upper part hinged to the beam 7, in which the second beam 6 and the third beam 6 are fixed together through four connecting middle beams 14, and the fourth beam 6 and the fifth beam 6 pass through The four connecting middle beams 14 are fixed together; the parallel beams 7 are in total six pieces, which are hinged above the cross beam 6 in turn. They are row-type staggered, integral hinged structures with good strength and reliable performance; the column hydraulic cylinders 10 are eight in total. The roots are symmetrically placed on the left and right sides of the four front and rear beams 6. One end of the telescopic rod of each column hydraulic cylinder 10 is hinged with the left and right sides of the beam 6. After the column hydraulic cylinder 10 is connected to the top of the beam 6 and the beam 7, it can move toward The cantilever beam 8 is hinged on the front side of the front beam 6; there are two cantilever beam hydraulic cylinders 15, which are installed symmetrically on the left and right below the cantilever beam 8. One end of the cylinder body is hinged to the connecting lug at the lower end of the cross beam 6, and one end of the telescopic rod is hinged to the connecting lug at the lower end of the cantilever beam 8. The telescopic hydraulic cylinder 15 of the cantilever beam drives the cantilever beam 8 to flip up and down, which can serve as a steel support during the permanent support process. The function of transporting and connecting the belt and the net; the side supports 9 are twelve pieces in total, which are symmetrically installed on both sides of each beam 6; the side support hydraulic cylinders 16 are twelve in total, and one end of the cylinder body is fixed on On one side of the beam 6, one end of the telescopic rod is hinged with the side support 9. The side support hydraulic cylinder 16 telescopically drives the side support 9 to extend outwards, which plays the role of supporting the tunnel support plate and adjusting the position of the bracket, so that the bracket can be grounded at the same time. The support status of the top and bottom support.

The crawler self-moving assembly is driven by high-pressure hydraulic oil provided by the matching mechanized excavator or windlass; the roof beam assembly is powered by the matching emulsion motor. The emulsion motor drives the load-sensitive pump to pass the hydraulic oil through the multi-proportion ratio. The road valves are respectively supplied to each execution hydraulic cylinder, which can complete the lifting and lowering of the top beam assembly, the expansion and contraction of the side supports, and the adjustment of the cantilever components, thereby meeting the support requirements of different situations. It has large starting torque, stable transmission, and good safety performance. , low noise and other advantages.

The crawler self-moving adjustable hydraulic support can freely expand and contract the lifting height of the lifting hydraulic cylinder 13 to adjust the angle of the staggered row structure, which better meets the roof support operation of complex tunnels with different inclination angles and enhances the stability of the overall frame. There is a The parallel beams 7 and cross beams 6 arranged in a row have good strength and a large contact area. They can promptly support the roof exposed due to fragmentation or the roof newly exposed after the tunnel boring machine digs, effectively control the roof falling and ensure the operation. For personnel safety, side supports 9 are arranged on both sides, which can support the tunnel support plate and adjust the position of the overall bracket, which enhances the stability and puts the overall bracket in a grounded, top-connected and supporting state. It is also installed at the front end. There is a cantilever beam 8, which can realize timely forward support and assist the permanent support operation of the tunnel by extending and retracting. Moreover, the present invention adopts a self-moving crawler assembly for crawler walking, which is located above the tunnel boring machine and used in conjunction with the tunnel boring machine. It ensures the zero-empty roof operation of the tunnel boring machine and at the same time can realize the roadway netting and the roof and side beams without repeated support operations. , flexible operation, fast self-moving speed, good stability, and can adapt to different roadway terrains, expanding the applicable scope of the equipment. At the same time, the front end of the present invention is provided with a coal pushing plate 5 to remove floating coal at the position where the bracket is placed, thereby enhancing safety performance.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have other aspects. Various changes and modifications are possible, which fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a crawler is from moving adjustable hydraulic support, includes crawler self-moving assembly and back timber assembly, its characterized in that: the crawler self-moving assembly comprises a walking crawler (1), a walking frame (2), a door-type bearing frame (3), a top beam (4) and a coal pushing plate (5), wherein the walking crawler (1), the walking frame (2), the door-type bearing frame (3) and the coal pushing plate (5) are respectively provided with two groups. The whole equipment is driven to walk by the walking crawler belt (1) and the walking frame (2). The door-type bearing frame (3) is used for supporting the top beam assembly. The top beam (4) is arranged above the door-type bearing frames (3), lifting assemblies are arranged on two sides of the two groups of door-type bearing frames (3), and the top beam assembly is arranged above the lifting assemblies;

the top beam assembly comprises a cross beam (6), a forward beam (7) and a cantilever beam (8), wherein a plurality of groups are symmetrically arranged on the left side and the right side of the cross beam (6), the forward beam (7) is provided with a plurality of groups and is arranged above the cross beam (6) to form a row type staggered structure, the row type staggered structure realizes zero-air top support by means of lifting adjustment angles of lifting components, and the cantilever beam (8) is hinged to the cross beam (6) on one side of the row type staggered structure and is driven to turn by a cantilever beam hydraulic cylinder (15) to enable an anchor net to be independently clung to a top plate. The cross beams (6) at two ends of the row-type staggered structure are hinged with side supports (9), and the side supports (9) are driven by side support hydraulic cylinders (16) to extend outwards to support side walls. And the two ends below the row type staggered structure are hinged with upright post hydraulic cylinders (10) for supporting, so that the whole frame is prevented from being deviated.

2. The track self-moving adjustable hydraulic support of claim 1, wherein: the two groups of walking tracks (1) and the walking frame (2), the walking frames (2) are respectively arranged on the walking tracks (1), and the walking tracks (1) drive the machine body to realize rapid and accurate walking and integral turning.

3. A track self-moving adjustable hydraulic support according to claim 2, wherein: the lifting hydraulic cylinder (13) is arranged inside the lifting assembly, the lifting hydraulic cylinder (13) stretches and contracts to drive the row type staggered structure hinged to the upper portion of the lifting inner sleeve (12) to lift, and the angle of the row type staggered structure is adjusted by freely stretching and lifting the lifting hydraulic cylinder (13) to timely support the top plate.

4. The track self-moving adjustable hydraulic support of claim 1, wherein: the cantilever beam hydraulic cylinders (15) are arranged below the cantilever beams (8) and are provided with two groups, and the cantilever beams (8) in front of the staggered row structure are driven to vertically overturn by the telescopic driving of the cantilever beam hydraulic cylinders (15) and are used for guaranteeing that an anchor net is independently clung to a top plate.

5. The track self-moving adjustable hydraulic support of claim 1, wherein: the coal pushing plate (5) is arranged at the front end of the walking frame (2), and in the crawler walking process of the machine body, the coal pushing plate (5) cleans floating coal in front of the crawler to prevent the machine body from shifting.

6. The track self-moving adjustable hydraulic support of claim 1, wherein: the side support hydraulic cylinders (16) are arranged on two sides of the row-type staggered structure, and in the machine body support process, the side support hydraulic cylinders (16) stretch to drive the side supports (9) to extend outwards, so that roadway side plates are supported timely, and the positions of the supports are adjusted.

7. The track self-moving adjustable hydraulic support of claim 1, wherein: the upright post hydraulic cylinders (10) are arranged below the cross beam (6) and are provided with a plurality of groups, the upright post hydraulic cylinders (10) stretch downwards after the row-type staggered structure is connected with the top, and the upright post hydraulic cylinders realize strong bearing of the single prop through grounding, adapt to the fluctuation of the bottom plate and prevent the whole frame from shifting.