Antiskid device of coal mining machine

Abstract

The utility model discloses a coal mining machine anti-skid device which comprises a shell, a first plate body is arranged in the middle of one side of the shell, second plate bodies are hinged to the two sides of the first plate body, and a plurality of protrusions are installed on the front surface of the first plate body and the front surface of the second plate body. Hinging seats are slidably connected to the rear surfaces of the two second plate bodies, hinging plates are hinged to the hinging seats, a piston rod of a hydraulic cylinder is installed on one side of each hinging plate, the hydraulic cylinders drive the first plate bodies and the second plate bodies to move, and meanwhile, through rotation of the second plate bodies, the first plate bodies and the second plate bodies can be driven to move when the wall surface fluctuates irregularly. And more bulges are in contact with the wall surface, so that the contact area is increased, the friction force is increased, and the occurrence of a sliding-down accident is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining machines, in particular to an anti-skid device for coal mining machines. Background Art

[0002] Coal mining machine is one of the main equipment of comprehensive mining equipment. If the coal mining machine fails, the entire coal mining work will be interrupted, causing huge economic losses. Existing coal mining machines are equipped with anti-skid devices when working on the slope to limit the position of the coal mining machine and avoid running away.

[0003] However, the existing anti-skid devices generally achieve the anti-skid function by driving the teeth to contact the surrounding wall through hydraulic cylinders. However, the contact area between the simple teeth and the wall is small, the overall friction is insufficient, and the wall surface often fluctuates. As the weight of the coal increases, runaway accidents are prone to occur, which has a great impact on the safe production of coal mines.

[0004] Therefore, a coal mining machine anti-skid device is proposed. Summary of the invention

[0005] The utility model aims to provide an anti-skid device for a coal mining machine to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a coal mining machine anti-skid device, comprising a shell, a first plate body is provided in the middle of one side of the shell, a second plate body is hingedly connected to both sides of the first plate body, and a plurality of protrusions are installed on the front surfaces of the first plate body and the second plate body;

[0007] The rear surfaces of the two second plate bodies are both slidably connected with a hinge seat, a hinge plate is hinged on the hinge seat, and a piston rod of a hydraulic cylinder is installed on one side of the hinge plate.

[0008] Preferably, a hydraulic cylinder is hinged at the middle of the first plate.

[0009] Preferably: a slide rail is installed on the rear surface of the second plate body.

[0010] Preferably, a slide plate is slidably connected inside the slide rail, and the slide plate is connected to the hinge seat.

[0011] Preferably, blocking plates are installed on both sides of the slide rail to prevent the slide plate from falling off.

[0012] Preferably, the protrusion is installed on the first plate body and the second plate body through threaded screw holes.

[0013] Preferably, the housing is embedded in a frame of the coal mining machine.

[0014] Compared with the prior art, the beneficial effects of the utility model are: the first plate body and the second plate body are driven to move by the hydraulic cylinder, and at the same time, through the rotation of the second plate body, more protrusions can be brought into contact with the wall surface when the wall surface is undulating, thereby increasing the contact area, increasing the friction force, and avoiding the occurrence of sports car accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model after the shell is removed;

[0017] Figure 3 It is a structural schematic diagram of the slide rail of the utility model.

[0018] In the figure: 1, shell; 2, first plate body; 3, second plate body; 4, protrusion; 5, slide rail; 6, blocking plate; 7, hydraulic cylinder; 8, hinged plate; 9, hinged seat; 10, slide plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Embodiment 1

[0021] See also Figure 1-3 The utility model provides a technical solution: a coal mining machine anti-skid device, comprising a shell 1, a first plate 2 is provided in the middle of one side of the shell 1, a second plate 3 is hinged on both sides of the first plate 2, and a plurality of protrusions 4 are installed on the front surfaces of the first plate 2 and the second plate 3;

[0022] The rear surfaces of the two second plate bodies 3 are both slidably connected with an articulated seat 9 , a hinged plate 8 is hingedly connected to the articulated seat 9 , and a piston rod of a hydraulic cylinder 7 is installed on one side of the articulated plate 8 .

[0023] like Figure 2 As shown: a hydraulic cylinder 7 is hinged in the middle of the first plate body 2; through the above arrangement, the hydraulic cylinder 7 can be operated to drive the first plate body 2 to move.

[0024] like Figure 2 As shown: a slide rail 5 is installed on the rear surface of the second plate body 3; through the above arrangement, the slide rail 5 can enable the hydraulic cylinder 7 to drive the second plate body 3 to rotate more conveniently and quickly.

[0025] like Figure 2 and Figure 3As shown: the slide rail 5 is internally slidably connected with a slide plate 10, and the slide plate 10 is connected to the hinge seat 9; through the above arrangement, when the hydraulic cylinder 7 is running, the slide plate 10 can slide inside the slide rail 5, so that the second plate body 3 can rotate around the hinge, so as to fit the wall more efficiently.

[0026] like Figure 2 As shown: blocking plates 6 are installed on both sides of the slide rail 5 to prevent the slide plate 10 from detaching; through the above arrangement, the position of the slide plate 10 can be restricted, thereby avoiding the slide plate 10 from separating from the slide rail 5.

[0027] like Figure 1 As shown: the protrusion 4 is installed on the first plate body 2 and the second plate body 3 through the threaded screw hole; through the above arrangement, when a protrusion 4 is damaged, it can be replaced more conveniently.

[0028] like Figure 1 As shown: the shell 1 is embedded in the frame of the coal mining machine; through the above arrangement, it is installed together with the coal mining machine, so that when anti-skid work is required, the first plate body 2 and the second plate body 3 are extended to contact the wall surface, thereby playing an anti-skid role.

[0029] Embodiment 2

[0030] The utility model provides a technical solution: a coal mining machine anti-skid device, comprising a shell 1, a first plate body 2 is provided in the middle of one side of the shell 1, second plates 3 are hinged on both sides of the first plate body 2, and a plurality of protrusions 4 are installed on the front surfaces of the first plate body 2 and the second plate body 3;

[0031] The rear surfaces of the two second plate bodies 3 and the first plate body 2 are slidably connected with an articulated seat 9 , on which an articulated plate 8 is articulated, and on one side of the articulated plate 8 a piston rod of a hydraulic cylinder 7 is installed.

[0032] The rear surface of the first plate body 2 is also slidably connected to the hinge seat 9, so that the three plates can be rotated more conveniently, thereby adapting to more different scenes.

[0033] Working principle: When it is necessary to perform anti-skid work on the coal mining machine, first start multiple hydraulic cylinders 7, and the first plate body 2 and the second plate body 3 are driven to move by the extension and contraction of the pistons of the hydraulic cylinders 7. If the wall surface is uneven, protruding or curved, the first plate body 2 will stop moving after contacting the wall surface, and the second plate bodies 3 on both sides will continue to move driven by the hydraulic cylinders 7. As the hydraulic cylinders 7 continue to run, the slide plate 10 will be driven to move inside the slide rail 5 through the hinge plate 8 and the hinge seat 9, so that the second plate body 3 can rotate around the hinge, and then a curve is formed between the first plate body 2 and the second plate body 3. The second plate body 3 and the first plate body 2 rotating on both sides can increase the contact area as much as possible on the uneven wall surface, thereby improving the anti-skid function.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining machine anti-skid device, comprising a housing (1), characterized in that: A first plate body (2) is provided in the middle of one side of the shell (1), second plates (3) are hingedly connected to both sides of the first plate body (2), and a plurality of protrusions (4) are installed on the front surfaces of the first plate body (2) and the second plate body (3); The rear surfaces of the two second plate bodies (3) are both slidably connected to a hinge seat (9), a hinge plate (8) is hinged on the hinge seat (9), and a piston rod of a hydraulic cylinder (7) is installed on one side of the hinge plate (8).

2. The anti-skid device for coal mining machine according to claim 1, characterized in that: A hydraulic cylinder (7) is hingedly connected to the middle portion of the first plate body (2).

3. The anti-skid device for coal mining machine according to claim 1, characterized in that: A slide rail (5) is installed on the rear surface of the second plate body (3).

4. The anti-skid device for coal mining machine according to claim 3, characterized in that: A slide plate (10) is slidably connected inside the slide rail (5), and the slide plate (10) is connected to the hinge seat (9).

5. The anti-skid device for coal mining machine according to claim 3, characterized in that: Blocking plates (6) are installed on both sides of the slide rail (5) to prevent the slide plate (10) from falling off.

6. The anti-skid device for coal mining machine according to claim 1, characterized in that: The protrusion (4) is mounted on the first plate body (2) and the second plate body (3) through threaded screw holes.

7. The anti-skid device for coal mining machine according to claim 1, characterized in that: The housing (1) is embedded in the frame of the coal mining machine.

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