Hydraulic support for coal mining

Abstract

The utility model relates to the technical field of coal mine supporting equipment, in particular to a hydraulic support for coal mining. The device comprises a bottom frame, a hydraulic cylinder a, a handrail assembly and a moving assembly, a hydraulic cylinder c is arranged at the bottom end of the bottom frame, and the output end of the hydraulic cylinder c is connected with a pushing plate; a top plate is arranged at the output ends of the hydraulic cylinders a, side plates are hinged to the two ends of the top plate respectively, and hydraulic cylinders b are rotationally connected to the top plate and the two side plates respectively; the two armrest assemblies are arranged on the two side plates respectively. The multiple moving assemblies are arranged on the bottom frame, and each moving assembly comprises a spherical joint arranged on the bottom frame in a sliding mode and an abutting block coaxially arranged on the corresponding wheel. The moving direction of the moving assembly is controlled through the handrail assembly, so that the hydraulic support is rapidly moved to a supporting point, the supporting efficiency of the hydraulic support is improved, and then the supporting area of the hydraulic support and the ground is increased by storing the moving assembly and the handrail assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine supporting equipment technical field especially is related to a hydraulic support for coal mining. BACKGROUND

[0002] In order to guarantee the personal safety of coal workers in the mining process, it is necessary to use supporting devices to support the mine tunnel to avoid mine collapse and cause casualties.

[0003] The Chinese patent with the publication number CN221442620U discloses a thin coal seam light hydraulic support, specifically relates to the technical field of coal mine supporting equipment. The thin coal seam light hydraulic support comprises a bottom plate, a top plate arranged above the bottom plate, four jacking hydraulic cylinders arranged between the bottom plate and the top plate, both ends of the jacking hydraulic cylinders being fixedly connected with the bottom plate and the top plate respectively, plug-in slots fixedly installed on both sides of the bottom plate, plug-in plates slidingly installed in the plug-in slots, the top end of the plug-in plate being fixedly connected with the top plate, and extension plates rotatably installed on both sides of the top plate. The thin coal seam light hydraulic support provided by the technical scheme can extend and protect the front and rear of the support by driving the extension plates to rotate using extension electric cylinders, and the extension plates can also be folded to reduce the length of the support when the support needs to be transferred, thereby facilitating the support to pass through the mine tunnel and facilitating transportation and storage.

[0004] However, the above technical scheme has the following disadvantages: during coal mining, the structure of the mine tunnel may become unstable due to blasting or coal mining, and the device needs multiple users to carry different components to the site for assembly when moving quickly to the unstable structure, making it difficult to achieve the required supporting efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art, and provides a coal mining hydraulic support that controls the moving direction of the moving assembly through the handrail assembly, so as to quickly move the hydraulic support to the supporting point, improve the supporting efficiency of the hydraulic support, and then store the moving assembly and the handrail assembly, so as to increase the supporting area of the hydraulic support on the ground.

[0006] The utility model discloses a hydraulic support for coal mining, including: the bottom frame is provided with hydraulic cylinder c at the bottom end, and the output end of hydraulic cylinder c is connected with the push plate, the hydraulic cylinder a is provided with a plurality of at the top end of bottom frame, and the output end of hydraulic cylinder a is provided with the top plate, and the both ends of top plate are hinged with the side plate, and one hydraulic cylinder b is rotatably connected on the top plate and the two side plates, the handrail assembly is provided with one on the two side plates, the moving assembly is provided with a plurality of on the bottom frame, and the moving assembly includes the spherical joint slidingly arranged on the bottom frame, the moving rod slidingly arranged on the spherical joint, the wheel coaxially rotatably arranged on the moving rod and the abutting block coaxially arranged on the wheel.

[0007] Preferably, the moving rod is provided with a limiting ring part, and the limiting ring part abuts against the bottom end of the bottom frame.

[0008] Preferably, the bottom frame is provided with a support block, the support block is provided with an arc-shaped groove at the bottom end, and the arc degree of the arc-shaped groove is same as the arc degree of the moving rod.

[0009] Preferably, the handrail assembly includes a handrail rotatably arranged on the side plate, two fixed rods slidingly arranged on the handrail in opposite directions, a spring arranged between the two fixed rods, two limiting blocks oppositely arranged on the side plate, and a button arranged on one of the two limiting blocks.

[0010] Preferably, the bottom frame is provided with two stepped plates rotatably arranged thereon, and the two stepped plates and the two side plates are provided with clamping assemblies one by one.

[0011] Preferably, the bottom frame is further provided with a storage rack, a plurality of support sub-rod are slidingly arranged on the storage rack, and the plurality of support sub-rod are connected with the top plate and the output ends of the plurality of hydraulic cylinders a.

[0012] Compared with the prior art, the utility model has the beneficial technical effects that:

[0013] When the utility model is used, the user selects one of the handrail assemblies according to the moving direction, moves to the position desired by the user, and then the push plate is driven to descend by the hydraulic cylinder c, the bottom frame is driven to ascend by the hydraulic cylinder a, the user rotates the spherical joint, the axis of the moving rod is directed to the ground, the position of the spherical joint is adjusted until the wheel is moved to the placing groove, then the push plate is reset by the hydraulic cylinder c, the abutting block is in contact with the ground, the wheel is stored in the placing groove, the moving rod is in contact with the top end of the bottom frame, and the end of the abutting block in contact with the ground can be provided with a conical shape to improve the stability of the hydraulic support, then the top plate and the side plate are in contact with the top end of the mine by the hydraulic cylinder a and the hydraulic cylinder b in sequence, thereby improving the efficiency of moving the support to the support point and supporting the mine. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model discloses a hydraulic support for coal mining, including: the bottom frame is provided with hydraulic cylinder c at the bottom end, and the output end of hydraulic cylinder c is connected with the push plate, the hydraulic cylinder a is provided with a plurality of at the top end of bottom frame, and the output end of hydraulic cylinder a is provided with the top plate, and the both ends of top plate are hinged with the side plate, and one hydraulic cylinder b is rotatably connected on the top plate and the two side plates, the handrail assembly is provided with one on the two side plates, the moving assembly is provided with a plurality of on the bottom frame, and the moving assembly includes the spherical joint slidingly arranged on the bottom frame, the moving rod slidingly arranged on the spherical joint, the wheel coaxially rotatably arranged on the moving rod and the abutting block coaxially arranged on the wheel.

[0015] Figure 2 It is a structural schematic view of the embodiment of the utility model;

[0016] Figure 3 It is a structural schematic view of the handrail assembly in the embodiment of the utility model;

[0017] Figure 4 It is a structural schematic view of the moving assembly in the embodiment of the utility model.

[0018] The drawing mark: 1, the undercarriage; 2, the support block; 3, moving assembly; 31, spherical joint; 32, moving pole; 33, wheel; 34, abutment block; 4, hydraulic cylinder a; 5, storage rack; 6, top plate; 7, support vice pole; 8, side plate; 9, handrail; 10, fixed rod; 11, spring; 12, limit block; 13, button; 14, clamping assembly; 15, ladder plate; 16, hydraulic cylinder b; 17, hydraulic cylinder c; 18, push plate. Specific implementation

[0019] Embodiment one

[0020] As Figures 1-4 shown, the hydraulic support for coal mining proposed in the embodiment, including undercarriage 1, hydraulic cylinder a 4, handrail assembly and moving assembly, undercarriage 1 bottom end is provided with hydraulic cylinder c 17, and the output end of hydraulic cylinder c 17 is connected with push plate 18;Hydraulic cylinder a 4 is set up multiple on the top end of undercarriage 1, and the output end of hydraulic cylinder a 4 is provided with top plate 6, and the both ends of top plate 6 are hinged with side plate 8 respectively, and one hydraulic cylinder b 16 is rotationally connected on top plate 6 and two side plates 8 respectively;Handrail assembly is set up one on two side plates 8 respectively.

[0021] Moving assembly 3 is set up multiple groups on undercarriage 1, and moving assembly 3 includes spherical joint 31 slidingly arranged on undercarriage 1, moving pole 32 slidingly arranged on spherical joint 31, wheel 33 coaxially rotationally arranged on moving pole 32 and abutment block 34 coaxially arranged on wheel 33;The bottom end of undercarriage 1 has multiple placing grooves, and multiple placing grooves are one-to-one corresponding with multiple wheels 33 respectively.

[0022] When the embodiment is used, the user selects one of the handrail assemblies according to the moving direction, moves to the desired position, and then the hydraulic cylinder c17 drives the push plate 18 to descend, while the hydraulic cylinder a4 drives the chassis 1 to ascend. The user rotates the spherical joint 31, so that the axis of the moving rod 32 is directed towards the ground, and then adjusts the position of the spherical joint 31 until the wheels 33 are moved to the placement groove, and then the hydraulic cylinder c17 drives the push plate 18 to reset, while the abutting block 34 is in contact with the ground. The wheels 33 are stored in the placement groove, the moving rod 32 is in abutment with the top end of the chassis 1, and the end of the abutting block 34 in contact with the ground can be conical to improve the stability of the hydraulic support. Then the hydraulic cylinder a4 and the hydraulic cylinder b16 drive the top plate 6 and the side plate 8 to abut against the top end of the mine hole in turn, thereby improving the efficiency of moving the support to the support point and supporting the mine hole.

[0023] Embodiment two

[0024] As shown in Figure 1 , Figure 2 and Figure 3 , the hydraulic support for coal mining proposed in the embodiment has a limit ring part on the moving rod 32, which abuts against the bottom end of the chassis 1. The chassis 1 is provided with a support block 2, and the support block 2 has an arc-shaped groove at the bottom end. The radius of the arc-shaped groove is the same as that of the moving rod 32. The moving rod 32 needs to be in contact with the support block 2 for a certain distance before it can be in contact with the arc-shaped groove, so as to avoid the moving rod 32 from easily separating from the contact state with the support block 2 when encountering poor terrain.

[0025] When the embodiment is used, the limit ring part can prevent the moving rod 32 from separating from the spherical joint 31, thereby improving the stability of the moving assembly. In addition, the support block 2 supports the top end of the moving rod 32, thereby improving the support point of the moving rod 32 and preventing the moving assembly 3 from shaking during movement.

[0026] Embodiment three

[0027] As shown in Figures 1-3 , the hydraulic support for coal mining proposed in the embodiment has a handrail assembly including a handrail 9 arranged on the side plate 8 in a damping rotating manner, two fixed rods 10 arranged on the handrail 9 in opposite sliding manner, a spring 11 arranged between the two fixed rods 10, two limit blocks 12 arranged on the side plate 8 in opposite manner, and a button 13 arranged on each of the two limit blocks 12. Each of the two limit blocks 12 has a limit hole, and each of the two buttons 13 is distributed in one limit hole.

[0028] When the embodiment is used, the user rotates the handrail 9 until the two fixed rods 10 are inserted into the limiting holes under the drive of the springs 11 and abut against the buttons 13, so that the handrail 9 is rotated to a suitable angle for the user to push and is fixed. After the user moves the hydraulic support to a suitable position, the user presses the two buttons 13 and pulls the handrail 9 at the same time, so that the fixed rods 10 are separated from the limiting holes, and the handrail 9 is reset, thereby reducing the occupied space of the hydraulic support when it is stored.

[0029] Embodiment four

[0030] As shown in Figure 1 and Figure 2 , the hydraulic support for coal mining provided by the embodiment is compared with the first embodiment. In the embodiment, two stepped plates 15 are arranged on the chassis 1 in opposite rotation, and the two stepped plates 15 and the two side plates 8 are one-to-one arranged with the clamping assemblies 14. The chassis 1 is further provided with a storage rack 5, and a plurality of support sub- rods 7 are slidingly arranged on the storage rack 5. The plurality of support sub- rods 7 are connected with the top plate 6 and the output ends of the plurality of hydraulic cylinders a4.

[0031] When the embodiment is used, the user clamps the stepped plates 15 and the side plates 8 together through the clamping assemblies 14. After moving to the support point, the user unclamps the clamping assemblies 14, and the two ends of the stepped plates 15 are connected with the ground and the chassis 1 respectively, so as to serve as an inclined surface to prevent the worker from tripping over the chassis 1. When the hydraulic cylinder a4 pushes the top plate 6 to rise, the output end of the hydraulic cylinder a4 is connected with a connecting plate, and the plurality of support sub- rods 7 are connected with the connecting plate, so as to increase the plurality of support sub- rods 7 at the bottom end of the top plate 6 as support points.

[0032] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A hydraulic support for coal mining, characterized in that, Include: The bottom bracket (1) is provided with hydraulic cylinder c (17) at the bottom end, and the output end of hydraulic cylinder c (17) is connected with push plate (18); Hydraulic cylinder a (4) is arranged at the top end of the bottom bracket (1), and the output end of hydraulic cylinder a (4) is provided with top plate (6), both ends of top plate (6) are hinged with side plate (8), and one hydraulic cylinder b (16) is rotatably connected to top plate (6) and two side plates (8); Handrail assembly is arranged on both side plates (8); The moving assembly (3) is arranged on the bottom bracket (1), and the moving assembly (3) includes a spherical joint (31) slidingly arranged on the bottom bracket (1), a moving rod (32) slidingly arranged on the spherical joint (31), a wheel (33) coaxially rotatingly arranged on the moving rod (32), and an abutting block (34) coaxially arranged on the wheel (33).

2. The hydraulic support for coal mining according to claim 1, characterized in that, The moving rod (32) has a limiting ring part, and the limiting ring part abuts against the bottom end of the bottom bracket (1).

3. The hydraulic support for coal mining according to claim 2, characterized in that, The bottom bracket (1) is provided with support block (2), and the bottom end of support block (2) has arc groove, and the arc of arc groove is same as the arc of moving rod (32).

4. The hydraulic support for coal mining according to claim 1, characterized in that, The handrail assembly includes handrail (9) rotatably arranged on side plate (8), two fixed rods (10) slidingly arranged on handrail (9) in opposite directions, spring (11) arranged between two fixed rods (10), two limiting blocks (12) oppositely arranged on side plate (8), and one button (13) arranged on each of two limiting blocks (12).

5. The hydraulic support for coal mining according to claim 1, characterized in that, The bottom bracket (1) is provided with two stepped plates (15) rotatably arranged in opposite directions, and the stepped plates (15) and the side plates (8) are one-to-one correspondingly provided with clamping assemblies (14).

6. The hydraulic support for coal mining according to claim 5, characterized in that, The bottom bracket (1) is further provided with storage rack (5), and a plurality of support sub rods (7) are slidingly arranged on the storage rack (5), and the plurality of support sub rods (7) are connected with the top plate (6) and the output ends of the plurality of hydraulic cylinder a (4).

Images