CN221423236U - A crawler self-moving adjustable hydraulic support - Google Patents

Abstract

The utility model 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 utility model relates to the technical field of underground coal mine excavation, in particular to a crawler self-moving adjustable hydraulic support, belonging to the technical field of underground coal mine hydraulic supports.

Background technique

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

At present, single pillars are generally used for advance support in coal mines, and manual assistance is required to complete the support operation, which greatly increases the labor intensity of workers, resulting in low support efficiency and quality, poor safety performance and other problems; secondly, the existing self-moving hydraulic supports have poor stability, slow frame movement speed, and poor adaptability to more complex tunnels, which greatly restricts its application scope. In order to improve production efficiency and operation safety and realize mechanized support, the supporting equipment for excavation operations requires flexible and fast frame movement, simple operation, convenient withdrawal, and synchronous support. Therefore, the utility model proposes a crawler self-moving adjustable hydraulic support to solve the problems existing in the prior art.

Utility Model Content

In order to solve the problems of poor stability, slow frame moving speed and poor adaptability of existing hydraulic support equipment in complex tunnels, the utility model provides a crawler self-moving adjustable hydraulic support, which realizes zero-empty top operation during excavation. The lifting height can be freely extended and retracted by the lifting hydraulic cylinder to adjust the angle of the row-type staggered structure, which can adapt to the roof support operation in complex tunnels and enhance the stability of the overall frame.

The technical scheme of the utility model is: a crawler self-moving adjustable hydraulic support, including a crawler self-moving assembly and a top beam assembly, the crawler self-moving assembly includes a walking crawler, a walking frame, a portal bearing frame, a top beam and a coal pushing plate, the walking crawler, the walking frame, the portal bearing frame, and the coal pushing plate are each provided with two groups, the two groups of portal bearing frames are respectively arranged on the two groups of walking frames, the top beam is arranged above the portal bearing frame, both sides of the two groups of portal bearing frames are provided with lifting components, the top beam assembly is arranged above the lifting component; the top beam assembly includes a cross beam, a longitudinal beam and a cantilever beam, the cross beam is symmetrically provided with multiple groups, the longitudinal beam is provided with multiple groups and is arranged above the cross beam to form a row-type staggered structure, the cantilever beam is hinged on the cross beam on one side of the row-type staggered structure, the cross beams at both ends of the row-type staggered structure are hinged with side supports, and the side supports are provided with multiple groups, and both ends below the row-type staggered structure are hinged with column hydraulic cylinders;

A further improvement is that: the lifting assembly comprises a lifting outer sleeve, a lifting inner sleeve and a lifting hydraulic cylinder, the lifting outer sleeve is mounted on a door-type bearing, the lifting inner sleeve is nested in the lifting outer sleeve, and the upper end of the lifting inner sleeve is hinged to the crossbeam of the top beam assembly;

A further improvement is that one end of the lifting hydraulic cylinder is hinged to the connecting ear in the lifting outer sleeve, and the output end of the lifting hydraulic cylinder is hinged to the connecting ear in the lifting inner sleeve, the cross beams are arranged symmetrically, and the multiple groups of cross beams on the left and right sides are respectively fixed by connecting the middle beams;

A further improvement is that a cantilever beam hydraulic cylinder is connected between the cantilever beam and the row-type staggered structure, and two groups of cantilever beam hydraulic cylinders are provided, one end of the cantilever beam hydraulic cylinder is hinged to the connecting ear at the lower end of the cross beam on one side, and the output end of the cantilever beam hydraulic cylinder is hinged to the connecting ear at the lower end of the cantilever beam;

A further improvement is that: the two groups of walking frames are respectively arranged on the two groups of walking crawlers, and one side of the two groups of walking frames is provided with a coal pushing plate;

A further improvement is that a side support hydraulic cylinder is connected between the side support and the row-type staggered structure, and one end of the side support hydraulic cylinder is hinged on the crossbeam, and the output end of the side support hydraulic cylinder is hinged to the side support;

A further improvement is that: the column hydraulic cylinders are provided in a plurality of groups, and the output end of each group of the column hydraulic cylinders is hinged to the left and right side surfaces of the cross beam.

The beneficial effects of the utility model are as follows: 1. The lifting height can be freely extended and retracted by the lifting hydraulic cylinder to adjust the angle of the row-type staggered structure, which can adapt to the ups and downs and changes in the inclination of the tunnel roof, timely support the roof exposed by the spalling or the newly exposed roof after the tunnel boring machine excavates, effectively control the roof falling, ensure the safety of the operator, realize the self-stabilization of the structure, and enhance the stability of the overall frame; 2. The crawler self-moving walking is adopted to ensure the zero-empty top operation of the tunnel boring machine, realize fast and accurate walking, easily realize overall turning, reduce the sliding friction between the top beam and the top plate, and improve the service life of the equipment; 3. A cantilever beam is provided at the front of the hydraulic support, and the cantilever beam hydraulic cylinder is used to realize The anchor net now sticks to the roof autonomously, realizes timely forward support, and realizes coordinated cooperation with the tunnel boring machine and anchor drilling vehicle; 4. A coal pushing plate is set at the front end of the crawler, which can clean the floating coal in front of the crawler, ensure the stable movement of the crawler, avoid gaps in the roof support due to the non-parallel crawler, and enhance the safety performance; 5. Make full use of the bearing performance of the single pillar, give play to the strong bearing function of the single pillar, and at the same time have a strong adaptability to the ups and downs of the bottom plate, avoid the uneven ground causing the overall frame to shift; 6. The hydraulic support adopts a split external power source to control the lifting cylinder, with a light structure and simplified process, realizing the lightweight design of coal mine machinery.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a front view of the utility model;

Fig. 2 is a side view of the utility model;

FIG3 is a front view of the crawler self-moving assembly of the utility model;

FIG4 is a side view of the crawler self-moving assembly of the utility model;

FIG5 is a front view of the top beam assembly of the utility model;

FIG6 is a first side view of the top beam assembly of the present invention;

FIG7 is a second side view of the top beam assembly of the present invention;

FIG8 is a top view of the top beam assembly of the present invention.

Among them: 1. Walking tracks, 2. Walking frame, 3. Gantry frame, 4. Top beam, 5. Coal pushing plate, 6. Cross beam, 7. Straight beam, 8. Cantilever 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 beam 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 in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

Embodiment 1

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 includes a walking crawler 1, a walking frame 2, a portal bearing frame 3, a top beam 4, and a coal pushing plate 5, the walking crawler 1, the walking frame 2, and the portal bearing frame 3 are each provided with two groups, the two groups of the walking frames 2 are respectively provided on the two groups of the walking crawlers 1, the two groups of the portal bearing frames 3 are respectively provided on the two groups of the walking frames 2, the top beam 4 is provided above the portal bearing frame 3, both sides of the two groups of the portal bearing frames 3 are provided with lifting components, and the top beam assembly is provided above the lifting component;

The top beam assembly includes a cross beam 6, a longitudinal beam 7 and a cantilever beam 8. The cross beam 6 is symmetrically arranged in multiple groups, and the longitudinal beam 7 is arranged in multiple groups and is arranged above the cross beam 6 to form a row-type staggered structure. The cantilever beam 8 is hinged to the cross beam 6 on one side of the row-type staggered structure. The cross beams 6 at both ends of the row-type staggered structure are hinged with side supports 9, and the side supports 9 are arranged in multiple groups. The two ends below the row-type staggered structure are hinged with column hydraulic cylinders 10. The lifting height can be freely extended and retracted by the lifting hydraulic cylinder 13 to adjust the angle of the row-type staggered structure, which better meets the roof support operations of complex tunnels with different inclination angles, and enhances the stability of the overall frame. A row of longitudinal beams 7 and cross beams 6 are arranged on the top, which have good strength and a large contact area. They can timely support the roof exposed due to spalling or the newly exposed roof after the tunnel boring machine excavates, effectively control the roof from falling, and ensure the safety of the operators. Side supports 9 are arranged on both sides to support the tunnel side plates and adjust the position of the overall support, thereby enhancing stability and putting the overall support in a support state of grounding, top and side. A cantilever beam 8 is also installed at the front end, which can realize timely forward support and auxiliary permanent support operations of the tunnel by extending and retracting.

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, the lifting inner sleeve 12 is nested in the lifting outer sleeve 11, and the upper end of the lifting inner sleeve 12 is hinged to the crossbeam 6 of the top beam assembly.

One end of the lifting hydraulic cylinder 13 is hinged to the connecting ear in the lifting outer sleeve 11, and the output end of the lifting hydraulic cylinder 13 is hinged to the connecting ear in the lifting inner sleeve 12. The lifting hydraulic cylinder 13 is extended and retracted to drive the top beam assembly hinged to the top of the lifting inner sleeve 12 to rise and fall.

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

A cantilever beam hydraulic cylinder 15 is connected between the cantilever beam 8 and the row-type staggered structure, and two groups of cantilever beam hydraulic cylinders 15 are provided. One end of the cantilever beam hydraulic cylinder 15 is hinged to the connecting ear at the lower end of the cross beam 6 on one side, and the output end of the cantilever beam hydraulic cylinder 15 is hinged to the connecting ear at the lower end of the cantilever beam 8. The cantilever beam hydraulic cylinder 15 is extended and retracted to drive the cantilever beam 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 crossbeam 6. The output end of the side support hydraulic cylinder 16 is hinged to the side support 9, and the side support hydraulic cylinder 16 is extended and retracted to drive the side support 9 to extend outward.

The column hydraulic cylinders 10 are provided in a plurality of groups, and the output end of each group of the column hydraulic cylinders 10 is hinged to the left and right side surfaces of the cross beam 6 , and the column hydraulic cylinders 10 are used for telescopic contact with the ground.

Embodiment 2

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 crawler self-moving assembly is installed below the top beam assembly, is the bearing component of the device, and is also the implementation mechanism for moving in the tunnel;

The crawler self-moving assembly is composed of a walking crawler 1, a walking frame 2, a gantry bearing frame 3, a top beam 4, a lifting outer sleeve 11, a lifting hydraulic cylinder 13, a lifting inner sleeve 12, and a coal pushing plate 5; the walking frame 2 has two parts, which are respectively installed above the left and right walking crawlers 1; the gantry bearing frame 3 has two parts, which are symmetrically installed above the left and right walking frames 2; the top beam 4 is fixed above the gantry bearing frame 3; the lifting outer sleeve 11 has four parts, which are respectively installed on the sides of the gantry bearing frame 3; the lifting inner sleeve 12 has four parts, They are respectively nested in the lifting outer sleeve 11, and the upper ends are hinged to the crossbeam 6 of the top beam assembly; there are four lifting hydraulic cylinders 13, one end of the cylinder body is hinged to the connecting ear in the lifting outer sleeve 11, and one end of the telescopic rod is hinged to the connecting ear in the lifting inner sleeve 12. The lifting hydraulic cylinder 13 can be extended and retracted to drive the top beam assembly hinged to the top of the lifting inner sleeve 12 to extend upward until it touches the top; there are two coal pushing plates 5, which are symmetrically installed on the front side of the walking frame 2, which can realize the coal cleaning function, ensure the stable placement of the bracket, and improve the safety performance.

The top beam assembly is composed of a cross beam 6, a longitudinal 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 has a total of six pieces, which are symmetrically arranged on the left and right, and are hinged to the longitudinal beam 7 at the top, wherein the second cross beam 6 and the third cross beam 6 are fixed together by four connecting middle beams 14, and the fourth cross beam 6 and the fifth cross beam 6 are fixed together by four connecting middle beams 14; the longitudinal beam 7 has a total of six pieces, which are hinged to the top of the cross beam 6 in sequence, and it is a row-type staggered, integrally hinged structure with good strength and reliable performance; the column hydraulic cylinders 10 have a total of eight pieces, which are symmetrically placed on the left and right sides of the four front and rear cross beams 6, and one end of the telescopic rod of each column hydraulic cylinder 10 is hinged to the left and right sides of the cross beam 6. After the cross beam 6 and the longitudinal beam 7 are connected to the top, the column hydraulic cylinder 10 can be telescoped downward until it is connected The cantilever beam 8 is hinged on the front side of the frontmost crossbeam 6; there are two cantilever beam hydraulic cylinders 15, which are symmetrically installed under the cantilever beam 8, one end of the cylinder body is hinged to the connecting ear at the lower end of the crossbeam 6, and one end of the telescopic rod is hinged to the connecting ear at the lower end of the cantilever beam 8. The cantilever beam hydraulic cylinder 15 can be extended and retracted to drive the cantilever beam 8 to flip up and down, which can play a role in receiving the transportation and top connection of steel belts and nets during permanent support; there are twelve side supports 9, which are symmetrically installed on both sides of each crossbeam 6. There are twelve side support hydraulic cylinders 16, one end of the cylinder body is fixed on one side of the crossbeam 6, and one end of the telescopic rod is hinged to the side support 9. The side support hydraulic cylinder 16 can extend and retract to drive the side support 9 to extend outward, which plays a role in supporting the side plate of the tunnel and adjusting the position of the support, so that the support can achieve the support state of connecting the ground, the top and the side at the same time.

The crawler self-moving assembly is driven by high-pressure hydraulic oil provided by the matching tunnel boring machine or anchor drilling machine; the top beam assembly is powered by the matching emulsion motor. The emulsion motor drives the load-sensitive pump to supply the hydraulic oil to each actuator hydraulic cylinder through a proportional multi-way valve. It can complete the actions of lifting and lowering the top beam assembly, extending and retracting the side supports, and adjusting the cantilever beam components, thereby meeting the support requirements in different situations. It has the advantages of large starting torque, smooth transmission, good safety performance, and low noise.

The crawler self-propelled adjustable hydraulic support can freely extend and retract the lifting height to adjust the angle of the row-type staggered structure through the lifting hydraulic cylinder 13, which better meets the roof support operations of complex tunnels with different inclination angles, and enhances the stability of the overall frame. The top is provided with a row-arranged longitudinal beam 7 and a cross beam 6, which have good strength and a large contact area. They can timely support the roof exposed by spalling or the newly exposed roof after the tunnel boring machine excavates, effectively control the roof from falling, and ensure the safety of the operators. Side supports 9 are arranged on both sides to support the tunnel side plates and adjust the position of the overall support, thereby enhancing stability and putting the overall support in a support state of grounding, top and side. A cantilever beam 8 is also installed at the front end to achieve timely forward support and auxiliary permanent support operations of the tunnel by extending and retracting. The utility model adopts a crawler self-moving assembly for crawler walking, which is located above the tunnel boring machine and is used in conjunction with the tunnel boring machine. While ensuring the zero-empty top operation of the tunnel boring machine, it can also achieve tunnel net laying and non-repeated support operations of the top plate and side walls. It is flexible in operation, fast in self-moving speed, and good in stability. It can adapt to different tunnel terrains and expand the scope of application of the equipment. At the same time, the utility model is provided with a coal pusher 5 at the front end to remove floating coal at the position where the bracket is placed, thereby enhancing safety performance.

The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached 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), top beams (4) and coal pushing plates (5), wherein the walking crawler (1), the walking frame (2), the door type bearing frame (3) and the coal pushing plates (5) are respectively provided with two groups, the two groups of door type bearing frames (3) are respectively arranged on the two groups of walking frames (2), the top beams (4) are arranged above the door type bearing frames (3), lifting assemblies are respectively arranged on two sides of the two groups of door type bearing frames (3), and the top beam assemblies are arranged above the lifting assemblies; the utility model provides a roof beam assembly includes crossbeam (6), along roof beam (7) and cantilever beam (8), crossbeam (6) bilateral symmetry is equipped with the multiunit, along roof beam (7) are equipped with the multiunit and establish in the top of crossbeam (6), constitute row formula staggered structure, cantilever beam (8) articulate on crossbeam (6) of row formula staggered structure one side, all articulate on crossbeam (6) at row formula staggered structure both ends has side support (9), and side support (9) are equipped with the multiunit, all articulate at the both ends of row formula staggered structure below has stand pneumatic cylinder (10).

2. The track self-moving adjustable hydraulic support of claim 1, wherein: the lifting assembly comprises a lifting outer sleeve (11), a lifting inner sleeve (12) and a lifting hydraulic cylinder (13), wherein the lifting outer sleeve (11) is arranged on the door type bearing frame (3), the lifting inner sleeve (12) is nested in the lifting outer sleeve (11), and the upper end of the lifting inner sleeve (12) is hinged with a cross beam (6) of the top beam assembly.

3. A track self-moving adjustable hydraulic support according to claim 2, wherein: one end of the lifting hydraulic cylinder (13) is hinged with a connecting lug in the lifting outer sleeve (11), the output end of the lifting hydraulic cylinder (13) is hinged at the connecting lug in the lifting inner sleeve (12), the cross beams (6) are arranged symmetrically left and right, and a plurality of groups of cross beams (6) on the left side and the right side are respectively fixed through connecting middle beams (14).

4. The track self-moving adjustable hydraulic support of claim 1, wherein: the cantilever beam hydraulic cylinder (15) is connected between the cantilever beam (8) and the row-type staggered structure, the cantilever beam hydraulic cylinders (15) are arranged in two groups, one end of each cantilever beam hydraulic cylinder (15) is hinged with one connecting lug at the lower end of the corresponding cross beam (6), and the output end of each cantilever beam hydraulic cylinder (15) is hinged with the connecting lug at the lower end of the corresponding cantilever beam (8).

5. The track self-moving adjustable hydraulic support of claim 1, wherein: the two groups of walking frames (2) are respectively arranged on the two groups of walking tracks (1), and a coal pushing plate (5) is arranged on one side of each walking frame (2).

6. The track self-moving adjustable hydraulic support of claim 1, wherein: a side support hydraulic cylinder (16) is connected between the side support (9) and the row type staggered structure, 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).

7. The track self-moving adjustable hydraulic support of claim 1, wherein: the upright hydraulic cylinders (10) are provided with a plurality of groups, and the output end of each group of upright hydraulic cylinders (10) is hinged with the left side surface and the right side surface of the cross beam (6).