Rocker arm damping device convenient to install and coal mining machine

Abstract

The utility model discloses a rocker arm damping device convenient to install and a coal mining machine, and relates to the technical field of coal mining machines, the rocker arm damping device comprises a hydraulic damping assembly and a connecting frame, the two ends of the hydraulic damping assembly are provided with installing frames, the two sides of the installing frames are horizontally provided with stabilizing frames, and the connecting frame is installed at the bottoms of the installing frames. According to the rocker arm damping device capable of being conveniently installed and the coal mining machine, the connecting frame is arranged, the damping bases are fixed to the side edges of the two ends of the hinged position of the rocker arm through the rivet bolts so that the whole device can be conveniently connected and installed, meanwhile, the connecting frame is used in cooperation with the structure of the installing frame, and the maximum structural firmness can be provided for a hydraulic damping assembly; and by means of the stabilizing frames horizontally arranged on the two sides of the mounting frame, a certain degree of structural support and side protection can be provided while damping stretching and retracting of the structure of the hydraulic damping assembly are not affected, and therefore the whole device has good use stability.

Description

Technical Field

[0001] The utility model relates to the technical field of shearers, in particular to a boom shock absorption device and a shearer that can be conveniently installed. Background Technique

[0002] A shearer is a large and complex system integrating machinery, electricity and hydraulics, mainly used for coal cutting and loading in coal mining faces. It breaks coal from the coal body through the working mechanism and loads it into the face conveyor to achieve continuous coal mining operations. The design and use of shearers are aimed at reducing physical labor and improving safety to achieve the goals of high output, high efficiency and low consumption. Such equipment is particularly important in longwall coal mining faces, walking at a set traction speed to enable continuous coal breaking and loading processes;

[0003] Among them, the boom shock absorption device of the shearer is a technical device designed to reduce the vibration of the shearer boom, aiming to improve the service life of each component in the shearer and protect the mechanical part from damage. This device absorbs and reduces the vibration transmitted by the boom, thereby reducing the damage to components such as the shearer boom housing, internal transmission parts and articulated connection ears.

[0004] The conventional boom shock absorption device has a complex structure, and the structural connection with the boom is also relatively cumbersome, resulting in a relatively high modification cost. At the same time, it requires cumbersome operations to complete the assembly of the shock absorption device, and it is not conducive to the daily maintenance of the structure.

[0005] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a boom shock absorption device and a shearer that can be conveniently installed are proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a boom shock absorption device and a shearer that can be conveniently installed to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A boom shock absorption device and a shearer that can be conveniently installed, including a hydraulic shock absorption component and a connecting frame. Installation frames are installed at both ends of the hydraulic shock absorption component, and stabilizing frames are horizontally installed on both sides of the installation frames. The connecting frame is installed at the bottom of the installation frames. The connecting frame includes a shock absorption seat, rivets, connecting holes and connecting bolts. Rivets are installed at the bottom of the shock absorption seat, connecting holes are opened at the four corners of the shock absorption seat, and connecting bolts are vertically threaded through the four side edges of the shock absorption seat.

[0008] Further, the hydraulic shock absorption component includes a hydraulic rod, connecting shaft heads and buffer springs. Connecting shaft heads are installed at both ends of the hydraulic rod, and a buffer spring is sleeved on the telescopic end of the hydraulic rod.

[0009] Furthermore, the connecting shaft head and the hydraulic rod are fixedly connected, and the stabilizing frame is horizontally arranged on the side of the hydraulic rod and is parallel to each other.

[0010] Furthermore, the mounting bracket includes a support shaft bracket, a movable shaft, a fixed disk, connecting piles and fixing bolts. The movable shaft is installed at the bottom of the support shaft bracket, and the bottom of the movable shaft is connected to the fixed disk. Connecting piles are arranged on the four sides of the fixed disk, and fixing bolts are vertically threaded through the four corners of the fixed disk.

[0011] Furthermore, the connecting bolt and the connecting pile are in threaded connection, and the fixing bolt penetrates inside the connecting hole.

[0012] Furthermore, the stabilizing frame includes a telescopic bracket, docking piles and connecting bolts. Docking piles are connected to both ends of the telescopic bracket, and connecting bolts are installed in the docking piles by threading.

[0013] Furthermore, the docking pile is inserted into the side of the support shaft bracket, and the connecting bolt and the support shaft bracket are in threaded connection.

[0014] A coal mining machine is installed with the conveniently installable rocker arm shock absorption device as described above.

[0015] The utility model provides a conveniently installable rocker arm shock absorption device and a coal mining machine, having the following

[0016] Beneficial effects:

[0017] 1. In the utility model, by providing a connecting frame, the whole connecting frame is fixedly installed on the side of the rocker arm hinge connecting ear by using the rivets on the bottom side of the shock absorption seat. While ensuring the stability of the structural connection, it is also convenient for subsequent combined installation of the hydraulic shock absorption components. It only needs to dock one side of the shock absorption seat with one side of the fixed disk, and then screw the fixing bolt and the connecting bolt into the inside of the connecting hole and the connecting pile respectively, so as to achieve quick combined fixation. By using the above structure, as much as possible, the structure on the outer surface of the rocker arm is not modified, and at the same time, the stability of the structure after installation can be ensured. At the same time, when the structure is connected, the convenience of the assembly operation is ensured, so as to facilitate the disassembly, installation and maintenance of the device structure in the later stage, and improve the practicability and disassembly and installation efficiency of the whole device structure.

[0018] 2. In the present utility model, two sets of stabilizing frames are horizontally arranged on the side of the hydraulic shock absorption assembly. The telescopic support is fixedly installed on the side of the support shaft frame by using the docking pile and the connecting bolt. Due to the certain degree of telescopic support of the telescopic support itself, during the shock absorption and telescopic process of the hydraulic shock absorption assembly, the entire stabilizing frame will not cause structural interference to it, and at the same time, it can provide a certain degree of side support and side protection. In addition, a movable shaft is installed at the bottom of the support shaft frame. By using the rotational property of its structure, when the entire device is connected to the rocker arm structure, both ends of the device have sufficient rotational mobility, so as to flexibly adapt to the operation of the rocker arm structure, avoid causing structural interference, and enable the hydraulic shock absorption assembly to exert the maximum shock absorption effect and support effect. Description of the Drawings

[0019] Figure 1 It is a schematic axonometric view of the body of a rocker arm shock absorption device that can be conveniently installed and a shearer according to the present utility model;

[0020] Figure 2 It is a schematic view of the mounting frame structure of a rocker arm shock absorption device that can be conveniently installed and a shearer according to the present utility model;

[0021] Figure 3 It is a schematic three-dimensional view of the connection frame of a rocker arm shock absorption device that can be conveniently installed and a shearer according to the present utility model.

[0022] In the figure: 1. Hydraulic shock absorption assembly; 101. Hydraulic rod; 102. Connecting shaft head; 103. Buffer spring; 2. Mounting frame; 201. Support shaft frame; 202. Movable shaft; 203. Fixed disk; 204. Connection pile; 205. Fixed bolt; 3. Stabilizing frame; 301. Telescopic support; 302. Docking pile; 303. Connecting bolt; 4. Connection frame; 401. Shock absorption seat; 402. Rivet bolt; 403. Connection hole; 404. Connection bolt. Detailed Implementation Manner

[0023] The following further describes in detail the implementation manner of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0024] Such as Figures 1 to 3As shown in the figure, a conveniently installable rocker shock absorber device and a shearer include a hydraulic shock absorber assembly 1 and a connecting frame 4. Installation frames 2 are installed at both ends of the hydraulic shock absorber assembly 1, and stabilizing frames 3 are horizontally installed on both sides of the installation frames 2. The connecting frame 4 is installed at the bottom of the installation frame 2. The connecting frame 4 includes a shock absorber seat 401, rivets 402, connecting holes 403, and connecting bolts 404. Rivets 402 are installed at the bottom of the shock absorber seat 401, and connecting holes 403 are opened at the four diagonal corners of the shock absorber seat 401. Moreover, connecting bolts 404 threadedly penetrate vertically through the four side edges of the shock absorber seat 401. The installation frame 2 includes a support shaft frame 201, a movable shaft 202, a fixed disk 203, connecting piles 204, and fixing bolts 205. A movable shaft 202 is installed at the bottom of the support shaft frame 201, and the bottom of the movable shaft 202 is connected to the fixed disk 203. Moreover, connecting piles 204 are provided on the four side edges of the fixed disk 203, and fixing bolts 205 threadedly penetrate vertically through the four diagonal corners of the fixed disk 203. The connecting bolts 404 and the connecting piles 204 are in threaded connection. The fixing bolts 205 penetrate through the inside of the connecting holes 403. Using the rivets 402 on the bottom side of the shock absorber seat 401, the entire connecting frame 4 is fixedly installed on the side of the rocker hinge connection ear. Then, one side of the shock absorber seat 401 is docked with one side of the fixed disk 203. Then, the fixing bolts 205 and the connecting bolts 303 are respectively screwed into the inside of the connecting holes 403 and the connecting piles 204, and rapid combined fixation can be achieved.

[0025] As Figures 1 to 3 As shown in the figure, the hydraulic shock absorber assembly 1 includes a hydraulic rod 101, connecting shaft heads 102, and buffer springs 103. Connecting shaft heads 102 are installed at both ends of the hydraulic rod 101, and a buffer spring 103 is sleeved on the telescopic end of the hydraulic rod 101. The connecting shaft heads 102 and the hydraulic rod 101 are fixedly connected. Moreover, the stabilizing frames 3 are horizontally arranged on the side of the hydraulic rod 101 and are parallel to each other. The stabilizing frame 3 includes a telescopic support 301, docking piles 302, and connecting bolts 303. Docking piles 302 are connected to both ends of the telescopic support 301, and connecting bolts 303 are threadedly installed inside the docking piles 302. The docking piles 302 are inserted into the side of the support shaft frame 201, and the connecting bolts 303 and the support shaft frame 201 are in threaded connection. Using the docking piles 302 and the connecting bolts 303, the telescopic support 301 is fixedly installed on the side of the support shaft frame 201. Due to the certain degree of telescopic support of the telescopic support 301 itself, when the hydraulic shock absorber assembly 1 performs shock absorption telescoping, the telescopic support 301 will synchronously telescopically adjust.

[0026] A coal shearer is installed with the above-mentioned conveniently installable rocker arm shock-absorbing device. By providing a connecting frame 4, the shock-absorbing seats 401 are respectively fixed to the two side edges of the rocker arm hinge by rivets 402, facilitating the connection and installation of the entire device. At the same time, in cooperation with the structure of the mounting frame 2, it can provide the maximum structural firmness for the hydraulic shock-absorbing assembly 1 and reduce the complexity of assembly. By using the stabilizing frames 3 horizontally arranged on both sides of the mounting frame 2, while not affecting the shock-absorbing expansion and contraction of the hydraulic shock-absorbing assembly 1 itself, it can also provide a certain degree of structural support and side protection, thus enabling the entire device to have good use stability and protecting the rocker arm structure of the coal shearer as much as possible.

[0027] In summary, as Figures 1 to 3 shown, for the conveniently installable rocker arm shock-absorbing device and the coal shearer, during use, first, at the position on the side of the rocker arm hinge of the coal shearer where the shock-absorbing device needs to be installed, install holes matching the structure of the rivets 402 are opened. At the same time, the entire shock-absorbing seat 401 is welded to the rocker arm surface with the cooperation of welding equipment. Then, the hydraulic shock-absorbing assembly 1 is docked with the connecting frame 4 using the stabilizing frames 3 at both ends. It only needs to dock one side of the shock-absorbing seat 401 with one side of the fixed disk 203. At the same time, the fixing bolts 205 at the diagonal of the fixed disk 203 are screwed into the connecting holes 403 at the diagonal of the shock-absorbing seat 401 and tightened. At the same time, the connecting bolt 404 is screwed into the inside of the connecting post 204 and then tightened, so that the hydraulic shock-absorbing assembly 1 can be quickly installed on the side of the rocker arm;

[0028] With the operation of the rocker arm, during this process, the cooperation of the hydraulic rod 101 and the telescopic bracket 301 with the buffer spring 103 provides a certain degree of structural support while buffering vibrations. At the same time, the movable shaft 202 on one side of the support shaft frame 201 can cooperate with the operation of the rocker arm to provide structural rotationality for the mounting frames 2 at both ends of the hydraulic shock-absorbing assembly 1. At the same time, the structural mobility between the connecting shaft head 102 and the support shaft frame 201 also ensures as much flexibility as possible between the hydraulic shock-absorbing assembly 1 and the mounting frame 2, avoiding affecting the normal operation of the rocker arm.

[0029] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

Claims

1. A conveniently installable rocker shock absorber device, comprising a hydraulic shock absorber assembly (1) and a connecting frame (4), characterized in that: Both ends of the hydraulic shock absorption assembly (1) are installed with mounting brackets (2), and stabilizing brackets (3) are horizontally installed on both sides of the mounting brackets (2). The connecting bracket (4) is installed at the bottom of the mounting bracket (2). The connecting bracket (4) includes a shock absorption seat (401), rivets (402), connecting holes (403) and connecting bolts (404). The rivets (402) are installed at the bottom of the shock absorption seat (401), and connecting holes (403) are provided at the four diagonals of the shock absorption seat (401). Moreover, connecting bolts (404) are vertically threaded through the four side edges of the shock absorption seat (401).

2. The swing arm shock absorption device capable of being conveniently installed according to claim 1, wherein, The hydraulic shock absorption assembly (1) includes a hydraulic rod (101), connecting shaft heads (102) and buffer springs (103). Connecting shaft heads (102) are installed at both ends of the hydraulic rod (101), and a buffer spring (103) is sleeved on the telescopic end of the hydraulic rod (101).

3. The swing arm damping device capable of being conveniently installed according to claim 2, characterized in that, The connecting shaft head (102) is fixedly connected to the hydraulic rod (101), and the stabilizing bracket (3) is horizontally arranged on the side of the hydraulic rod (101) and is parallel to each other.

4. A swing arm shock absorption device that can be conveniently installed according to claim 1, characterized in that, The mounting bracket (2) includes a support shaft bracket (201), a movable shaft (202), a fixed disk (203), connecting piles (204) and fixing bolts (205). The movable shaft (202) is installed at the bottom of the support shaft bracket (201), and the bottom of the movable shaft (202) is connected to the fixed disk (203). Moreover, connecting piles (204) are provided on the four side edges of the fixed disk (203), and fixing bolts (205) are vertically threaded through the four diagonals of the fixed disk (203).

5. The swing arm shock absorption device capable of being conveniently installed according to claim 4, wherein, The connecting bolt (404) is threadedly connected to the connecting pile (204), and the fixing bolt (205) passes through the inside of the connecting hole (403).

6. The swing arm shock absorption device capable of being conveniently installed according to claim 4, wherein The stabilizing bracket (3) includes a telescopic bracket (301), docking piles (302) and connecting bolts (303). Docking piles (302) are connected to both ends of the telescopic bracket (301), and connecting bolts (303) are threadedly installed inside the docking piles (302).

7. An easily installable rocker shock absorption device according to claim 6, characterized in that, The docking pile (302) is inserted into the side of the support shaft bracket (201), and the connecting bolt (303) is threadedly connected to the support shaft bracket (201).

8. A coal shearer, characterized in that This coal mining machine is installed with the conveniently installable rocker shock absorption device as described in any one of claims 1-7.

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