Hydraulic support withdrawing device

Abstract

The utility model relates to the technical field of coal mine fully-mechanized coal mining equipment, in particular to a hydraulic support withdrawing device which comprises a base, a steering device, a pulling device and a lifting device are arranged on the base, the steering device comprises a first inhaul cable and a second inhaul cable, the first inhaul cable and the second inhaul cable are connected with a first driving mechanism and a second driving mechanism respectively, and the first driving mechanism and the second driving mechanism are connected with a lifting device. The pulling device comprises a pulling seat and a pulling rope; a vertical guide seat is fixedly arranged on the base, and a guide sliding table is fixedly connected to the lower end of the outer pulling seat; and the lifting device comprises a fourth hydraulic cylinder which is vertically arranged between the vertical guide seat and the guide sliding table. According to the utility model, the displacement of the two sides of the hydraulic support can be accurately controlled and adjusted through the staggered traction of the double inhaul cables and the cooperative action of the pulling direction adjusting beam of the first driving mechanism and the telescopic inner seat of the second driving mechanism, and the situation that the angle of the hydraulic support is not adjusted in place can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine fully mechanized mining equipment, and more specifically, to a hydraulic support retraction device. Background Technology

[0002] Hydraulic supports are core equipment in the support system of fully mechanized coal mining faces. After mining operations are completed, the hydraulic supports must be withdrawn underground, and the efficiency of their underground transfer directly restricts the overall production capacity of the mine. Currently, the winch-pulley-based towing and repositioning process commonly used in the industry has significant technical bottlenecks: First, the equipment lacks modularity; the support transfer device and repositioning mechanism are designed separately, requiring repeated disassembly and reassembly of the traction rope and repositioning frame for each operation. Second, there is a lack of height adjustment mechanisms, requiring external hoisting equipment for support transfer, resulting in low docking efficiency.

[0003] Therefore, it is necessary to improve existing technologies. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a hydraulic support retraction device that facilitates the control and transfer of hydraulic supports is provided.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A hydraulic support retraction device includes a base, on which a steering device, a pulling device and a lifting device are provided. The steering device includes a first cable and a second cable, which are respectively connected to a first drive mechanism and a second drive mechanism. One end of the first cable and the second cable are respectively connected to a hook.

[0007] The pulling device includes a pulling seat and a pulling rope. The pulling seat includes an outer pulling seat and an inner pulling seat that are slidably fitted together. A third hydraulic cylinder is provided between the outer pulling seat and the inner pulling seat to drive the inner pulling seat to move linearly along the outer pulling seat. A reversing wheel I is rotatably provided at the end of the inner pulling seat away from the steering device. A reversing wheel II is rotatably provided on the outer pulling seat. The pulling rope is fixedly connected to the inner pulling seat. One end of the pulling rope is wound around the reversing wheel II and the reversing wheel I in sequence and is connected to a hook. An angle is provided between the pulling direction of the pulling rope and the pulling direction of the first cable or the second cable.

[0008] A vertical guide seat is fixedly installed on the base, and a guide slide is fixedly connected to the lower end of the outer pull-out seat, which slides in cooperation with the vertical guide seat; the lifting device includes a fourth hydraulic cylinder vertically installed between the vertical guide seat and the guide slide, and at least two guide chain frames are installed on the upper end of each outer pull-out seat. A chain is fixedly connected to the base, and one end of the chain passes through the corresponding guide chain frame and is connected to a hook.

[0009] Preferably, the first driving mechanism includes a directional beam and a first hydraulic cylinder. A directional beam platform and a fixed seat are fixedly mounted on the base. The directional beam is slidably mounted on the directional beam platform. A first hydraulic cylinder is provided on the lower side of the fixed seat to drive the directional beam to move linearly along the directional beam platform. A steering sprocket is rotatably mounted on the directional beam. A first cable cooperates with the steering sprocket. One end of the first cable is fixed to the fixed seat, and the other end of the first cable is connected to a corresponding hook.

[0010] The first cable is a chain.

[0011] Preferably, the second driving mechanism includes an outer seat and an inner seat that are slidably connected. The upper end of the fixed seat is provided with a horizontal sliding hole, and the outer seat is slidably disposed in the horizontal sliding hole. The lower end of the outer seat is connected to the pull-shifting beam and moves synchronously with the pull-shifting beam. A second hydraulic cylinder is provided between the inner seat and the outer seat to drive the inner seat to move linearly along the outer seat. One end of the inner seat is rotatably provided with a steering pulley I, the fixed seat is rotatably provided with a steering pulley II, and the base is rotatably provided with a steering pulley III. The second cable is a steel wire rope, one end of which is fixedly connected to the inner seat, and the other end of which is sequentially wound around the steering pulley II, the steering pulley I, and the steering pulley III and connected to a hook.

[0012] Preferably, two of the pulling devices are symmetrically arranged on the base.

[0013] Preferably, a lifting seat is placed on the base, and hinge seats I are fixedly provided on both sides of the lifting seat. A hinge seat II corresponding to the hinge seat I is provided at the lower end of the outer pull-out seat. A connecting plate is provided between the hinge seat I and the hinge seat II, and the two ends of the connecting plate are hinged to the hinge seat I and the hinge seat II respectively.

[0014] Preferably, the base includes a steering platform, a transition platform, a pulling platform, a steering guide platform, and a landslide platform, which are sequentially detachably connected to form an L-shaped base plate structure;

[0015] The steering device is mounted on the steering platform, and the pulling device is mounted on the pulling platform.

[0016] Preferably, the steering guide platform is provided with a plurality of guide wheels.

[0017] Preferably, an auxiliary support connecting plate is fixedly installed at the end of the steering platform away from the transition platform; a pulling auxiliary arm is connected to the end of the pulling platform away from the transition platform, and a fifth hydraulic cylinder is installed between the pulling auxiliary arm and the pulling platform.

[0018] Preferably, the base is provided with a control valve group connected to each hydraulic cylinder.

[0019] The advantages of this utility model compared with the prior art are as follows:

[0020] 1. This utility model achieves precise control and adjustment of the displacement on both sides of the hydraulic support through the coordinated action of the double-cable staggered traction and the pulling and adjusting beam of the first drive mechanism and the telescopic inner seat of the second drive mechanism, thus avoiding incomplete angle adjustment of the hydraulic support. The pulling and adjusting device drives the inner pulling and adjusting seat to extend and retract through the third hydraulic cylinder, which can complete the linear traction after adjustment and reduce the complexity of process switching; the lifting device integrates the guide chain frame-chain lifting and lifting seat support dual modes, and with the vertical drive of the fourth hydraulic cylinder, it can adapt to the transfer and docking requirements of different working conditions.

[0021] 2. The base of this utility model adopts a modular splicing structure, which can be easily transferred and assembled. Attached Figure Description

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 A schematic diagram of the steering device at one angle;

[0025] Figure 3 This is a structural diagram of the steering device from another angle;

[0026] Figure 4 A schematic diagram of the structure of the pulling device at one angle;

[0027] Figure 5 This is a structural diagram of the pulling device from another angle;

[0028] Figure 6 This is a cross-sectional schematic diagram of the pulling device.

[0029] In the diagram: 1-Steering device; 11-First cable; 12-Second cable; 2-Pulling device; 21-Pulling rope; 22-Outer pulling seat; 23-Inner pulling seat; 24-Third hydraulic cylinder; 25-Reversing wheel I; 26-Reversing wheel II; 3-Lifting device; 31-Vertical guide seat; 32-Guide slide; 33-Fourth hydraulic cylinder; 34-Guide chain frame; 35-Chain; 36-Lifting seat; 37-Hinge seat I; 38-Hinge seat II; 39-Connecting plate; 4-First drive mechanism; 41-Pulling and adjusting beam; 42-First hydraulic cylinder 43-Press cylinder; 44-Pull-and-shift beam platform; 45-Fixed seat; 46-Steering sprocket; 5-Second drive mechanism; 51-Outer seat; 52-Inner seat; 53-Second hydraulic cylinder; 54-Steering pulley I; 55-Steering pulley II; 56-Steering pulley III; 6-Hook; 7-Base; 71-Steering platform; 72-Transition platform; 73-Pull-and-shift platform; 74-Steering guide platform; 75-Slide platform; 76-Guide wheel; 77-Auxiliary support connecting plate; 78-Pull-and-shift auxiliary arm; 79-Fifth hydraulic cylinder; 8-Control valve group. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example:

[0032] like Figures 1 to 6 As shown, a hydraulic support retraction device includes a base 7, on which a steering device 1, a pulling device 2, and a lifting device 3 are provided. The steering device 1 is used to adjust the direction of the hydraulic support, the pulling device 2 is used to move the hydraulic support to the position of the lifting device 3, and the lifting device 3 is used to lift the hydraulic support to a certain height to facilitate docking with the transfer equipment that carries the hydraulic support for transfer.

[0033] The steering device 1 includes a first cable 11 and a second cable 12. The first cable 11 and the second cable 12 are respectively connected to a first drive mechanism 4 and a second drive mechanism 5. One end of the first cable 11 and the second cable 12 is connected to a hook 6. The hooks connected to the first cable 11 and the second cable 12 are respectively connected to both sides of the hydraulic support. The first drive mechanism 4 and the second drive mechanism 5 drive the first cable 11 and the second cable 12 to tighten in a staggered manner, so that the displacements on both sides of the two hydraulic supports are different, thereby realizing the steering of the hydraulic supports.

[0034] Specifically, the first drive mechanism 4 includes a directional beam 41 and a first hydraulic cylinder 42. A directional beam platform 43 and a fixed seat 44 are fixedly mounted on the base 7. The directional beam 41 is slidably mounted on the directional beam platform 43. The first hydraulic cylinder 42 is located under the fixed seat 44. When the first hydraulic cylinder 42 extends or retracts, it drives the directional beam 41 to move linearly along the directional beam platform 43. A steering sprocket 45 is rotatably mounted on the directional beam 41. A first cable 11 engages with the steering sprocket 45. One end of the first cable 11 is fixed to the fixed seat 44, and the other end is connected to a corresponding hook 6. The directional beam 41 drives the steering sprocket 45 to move linearly, thereby retracting or extending the first cable 11. Preferably, the first cable 11 is a chain.

[0035] The second drive mechanism 5 includes an outer seat 51 and an inner seat 52 that are slidably connected. A horizontal sliding hole is provided at the upper end of the fixed seat 44, and the outer seat 51 is slidably disposed in the horizontal sliding hole. The lower end of the outer seat 51 is connected to the pull-shifting beam 41. When the pull-shifting beam 41 moves, the outer seat 51 moves synchronously with the pull-shifting beam 41. A second hydraulic cylinder 53 is provided between the inner seat 52 and the outer seat 51, and the inner seat 52 is controlled to extend and retract along the outer seat 51 by the second hydraulic cylinder 53. A steering pulley I 54 is rotatably disposed at one end of the inner seat 52, a steering pulley II 55 is rotatably disposed on the fixed seat 44, and a steering pulley III 56 is rotatably disposed on the base 7. Preferably, the second cable 12 is a steel wire rope. One end of the steel wire rope is fixedly connected to the inner seat 52, and the other end of the steel wire rope is sequentially wound around the steering pulley II 55, the steering pulley I 54, and the steering pulley III 56 and connected to a hook 6. When the first hydraulic cylinder 42 or the second hydraulic cylinder 53 extends, the hydraulic support can be moved via the wire rope.

[0036] To facilitate the movement of the oriented hydraulic support to the position of the lifting device 3, two pulling devices 2 are symmetrically arranged on the base 7. Specifically, each pulling device 2 includes a pulling seat and a pulling rope 21. The pulling seat includes an outer pulling seat 22 and an inner pulling seat 23 that are slidably engaged. A third hydraulic cylinder 24 is installed between the outer pulling seat 22 and the inner pulling seat 23 to drive the inner pulling seat 23 to move linearly along the outer pulling seat 22. A reversing wheel I 25 is rotatably mounted on the end of the inner pulling seat 23 away from the steering device 1. A reversing wheel II 26 is rotatably mounted on the outer pulling seat 22. The pulling rope 21 is fixedly connected to the inner pulling seat 23. One end of the pulling rope 21 is wound around the reversing wheel II 26 and the reversing wheel I 25 in sequence and connected to a hook 6. When the third hydraulic cylinder 24 extends, it drives the hydraulic support to move through the pulling rope 21. The pulling rope 21 is made of steel wire rope.

[0037] The pulling direction of the pulling rope 21 is set at an angle with the pulling direction of the first cable 11 or the second cable 12; preferably, the angle is 90°.

[0038] To facilitate the lifting of the hydraulic support, a vertical guide seat 31 is fixedly installed on the base 7, and a guide slide 32 that slides with the vertical guide seat 31 is fixedly connected to the lower end of the outer pull-out seat 22. The lifting device 3 includes a fourth hydraulic cylinder 33 vertically installed between the vertical guide seat 31 and the guide slide 32. At least two guide chain frames 34 are installed on the upper end of each outer pull-out seat 22. A chain 35 is fixedly connected to the base 7. One end of the chain 35 passes through the corresponding guide chain frame 34 and is connected to a hook 6, which connects the hook 6 to the hydraulic support. When the fourth hydraulic cylinder 33 extends, it drives the guide chain frame 34 to move upward, which in turn drives the corresponding hook 6 and the hydraulic support to move upward through the chain 35. At this time, a height difference is formed between the hydraulic support and the base 7 (or the lifting seat 36), which facilitates the insertion of other equipment between the hydraulic support and the base 7 for transferring the hydraulic support.

[0039] In addition to being lifted by the hook 6, the hydraulic support can also be lifted by the lifting seat 36. Specifically, the lifting seat 36 is placed on the base 7, and hinge seats I 37 are fixedly installed on both sides of the lifting seat 36. The lower end of the outer pull-out seat 22 is provided with a hinge seat II 38 corresponding to the hinge seat I 37. A connecting plate 39 is provided between the hinge seat I 37 and the hinge seat II 38, and the two ends of the connecting plate 39 are hinged to the hinge seat I 37 and the hinge seat II 38, respectively. When the connection between the hook 6 and the hydraulic support is disconnected, the hydraulic support is placed on the lifting seat 36. The fourth hydraulic cylinder 33 extends and moves the lifting seat 36 upward to the same height as the transfer equipment, making it convenient to pull the hydraulic support onto the transfer equipment.

[0040] The base 7 is equipped with a control valve group 8 connected to each hydraulic cylinder, and the movement of hydraulic cylinders one to five is controlled by the control valve group 8.

[0041] To facilitate the production and installation of the base 7, preferably, the base 7 includes a steering platform 71, a transition platform 72, a pulling platform 73, a steering guide platform 74, and a landslide platform 75. The pulling platform 73, the transition platform 72, the steering platform 71, the steering guide platform 74, and the landslide platform 75 are sequentially detachably connected to form an L-shaped base plate structure. The steering device 1 is installed on the steering platform 71, and the pulling device 2 is installed on the pulling platform 73.

[0042] To guide the movement of the hydraulic support, a number of guide wheels 76 are provided on the steering guide platform 74.

[0043] An auxiliary support connecting plate 77 is fixedly installed at the end of the steering platform 71 away from the transition platform 72. The auxiliary support connecting plate 77 is connected to other fixed equipment (such as one of the hydraulic supports) to temporarily fix the base 7 and prevent the base 7 from moving during operation.

[0044] A pulling auxiliary arm 78 is connected to the end of the pulling platform 73 away from the transition platform 72. A fifth hydraulic cylinder 79 is provided between the pulling auxiliary arm 78 and the pulling platform 73. The pulling auxiliary arm 78 can be used to connect with the transfer equipment.

[0045] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A hydraulic support retraction device, comprising a base (7), characterized in that: The base (7) is provided with a steering device (1), a pulling device (2) and a lifting device (3). The steering device (1) includes a first cable (11) and a second cable (12). The first cable (11) and the second cable (12) are respectively connected to a first drive mechanism (4) and a second drive mechanism (5). One end of the first cable (11) and the second cable (12) are respectively connected to a hook (6). The pulling device (2) includes a pulling seat and a pulling rope (21). The pulling seat includes an outer pulling seat (22) and an inner pulling seat (23) that are slidably fitted. A third hydraulic cylinder (24) is provided between the outer pulling seat (22) and the inner pulling seat (23) to drive the inner pulling seat (23) to move linearly along the outer pulling seat (22). A reversing wheel I (25) is rotatably provided at the end of the inner pulling seat (23) away from the steering device (1). A reversing wheel II (26) is rotatably provided on the outer pulling seat (22). The inner pulling seat (23) is fixedly connected to the pulling rope (21). One end of the pulling rope (21) is wound around the reversing wheel II (26) and the reversing wheel I (25) in sequence and connected to a hook (6). An angle is provided between the traction direction of the pulling rope (21) and the traction direction of the first cable (11) or the second cable (12). A vertical guide seat (31) is fixedly installed on the base (7), and a guide slide (32) that slides with the vertical guide seat (31) is fixedly connected to the lower end of the outer pull-out seat (22); the lifting device (3) includes a fourth hydraulic cylinder (33) that is vertically installed between the vertical guide seat (31) and the guide slide (32), and at least two guide chain frames (34) are installed on the upper end of each outer pull-out seat (22). A chain (35) is fixedly connected to the base (7), and one end of the chain (35) passes through the corresponding guide chain frame (34) and is connected to a hook (6).

2. The hydraulic support retraction device according to claim 1, characterized in that: The first drive mechanism (4) includes a pull-adjusting beam (41) and a first hydraulic cylinder (42). The base (7) is fixedly provided with a pull-adjusting beam platform (43) and a fixed seat (44). The pull-adjusting beam (41) is slidably provided on the pull-adjusting beam platform (43). The fixed seat (44) is provided with a first hydraulic cylinder (42) on the lower side to drive the pull-adjusting beam (41) to move linearly along the pull-adjusting beam platform (43). A steering sprocket (45) is rotatably provided on the pull-adjusting beam (41). The first cable (11) cooperates with the steering sprocket (45). One end of the first cable (11) is fixed on the fixed seat (44), and the other end of the first cable (11) is connected to the corresponding hook (6). The first cable (11) is a chain.

3. The hydraulic support retraction device according to claim 2, characterized in that: The second drive mechanism (5) includes an outer seat (51) and an inner seat (52) that are slidably connected. The upper end of the fixed seat (44) is provided with a horizontal sliding hole. The outer seat (51) is slidably disposed in the horizontal sliding hole. The lower end of the outer seat (51) is connected to the pull-adjusting beam (41) and moves synchronously with the pull-adjusting beam (41). A second hydraulic cylinder (53) is provided between the inner seat (52) and the outer seat (51) to drive the inner seat (52) to move linearly along the outer seat (51). One end of the inner seat (52) is rotatably provided with a steering pulley I (54). A steering pulley II (55) is rotatably provided on the fixed seat (44). A steering pulley III (56) is rotatably provided on the base (7). The second cable (12) is a steel wire rope. One end of the steel wire rope is fixedly connected to the inner seat (52). The other end of the steel wire rope is wound around the steering pulley II (55), the steering pulley I (54), and the steering pulley III (56) in sequence and is connected with a hook (6).

4. The hydraulic support retraction device according to claim 1, characterized in that: Two of the pulling devices (2) are symmetrically arranged on the base (7).

5. The hydraulic support retraction device according to claim 1, characterized in that: A lifting seat (36) is placed on the base (7). A hinge seat I (37) is fixedly installed on both sides of the lifting seat (36). A hinge seat II (38) corresponding to the hinge seat I (37) is installed at the lower end of the pull-out seat (22). A connecting plate (39) is installed between the hinge seat I (37) and the hinge seat II (38). The two ends of the connecting plate (39) are hinged to the hinge seat I (37) and the hinge seat II (38) respectively.

6. The hydraulic support retraction device according to claim 1, characterized in that: The base (7) includes a steering platform (71), a transition platform (72), a pulling platform (73), a steering guide platform (74), and a landslide platform (75). The pulling platform (73), the transition platform (72), the steering platform (71), the steering guide platform (74), and the landslide platform (75) are sequentially detachably connected to form an L-shaped base plate structure. The steering device (1) is mounted on the steering platform (71), and the pulling device (2) is mounted on the pulling platform (73).

7. A hydraulic support retraction device according to claim 6, characterized in that: The steering guide platform (74) is provided with several guide wheels (76).

8. A hydraulic support retraction device according to claim 6, characterized in that: An auxiliary support connecting plate (77) is fixedly installed at one end of the steering platform (71) away from the transition platform (72); a pulling auxiliary arm (78) is connected to one end of the pulling platform (73) away from the transition platform (72), and a fifth hydraulic cylinder (79) is provided between the pulling auxiliary arm (78) and the pulling platform (73).

9. A hydraulic support retraction device according to claim 3, characterized in that: The base (7) is provided with a control valve group (8) connected to each hydraulic cylinder.

Images