Auxiliary installation device for rocker arm lifting oil cylinder of coal mining machine

Abstract

The utility model discloses a coal mining machine rocker arm lifting oil cylinder installation auxiliary device which comprises a buffering leather cushion, a supporting plate and a connecting cylinder, the bottom of the supporting plate is provided with the connecting cylinder, an inner groove used for being connected with a jack is formed in the connecting cylinder, and the top of the supporting plate is provided with the buffering leather cushion making contact with a rocker arm. According to the auxiliary device, the connecting cylinder is arranged at the bottom of the supporting plate, and the connecting cylinder is clamped with the pushing rod of the jack, so that the stability between the auxiliary device and the jack is ensured, and the risk that the auxiliary device inclines and splashes in the mounting process is avoided; the buffering leather cushion can ensure the sealing anti-skid effect between the auxiliary device and the rocker arm lifting oil cylinder, by means of the auxiliary installation tool, the whole installation process pushed by the jack is safer, more reliable, more efficient and more convenient, manpower resources can be saved, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the field of coal mine electromechanical technology, in particular to an auxiliary device for installing a rocker arm lifting cylinder of a coal mining machine. Background Art

[0002] Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency, and low consumption. According to statistics, Huainan Mining Group needs to repair 50 sets of coal mining machines every year. The turnover rate of coal mining machines is very high. In the maintenance and installation process of coal mining machines, the installation of the rocker arm lifting cylinder of the coal mining machine is a key link. Since the installation requires the use of a jack and a crane, but there are no corresponding special auxiliary installation tools, it is easy to cause parts to jump out and injure people, which is not conducive to personal safety and also slows down the maintenance progress.

[0003] The existing technology currently has the following shortcomings: There are no special auxiliary installation tools for the installation of the rocker arm lifting cylinder, and the installation method that cooperates with the jack and the crane is generally adopted. The specific operation is: place the jack under the rocker arm lifting cylinder to be installed. Due to the limited stroke of the jack, nuts, iron blocks and other items are often placed on the extended shaft end of the jack to increase the stroke of the jack. During the installation of the cylinder, it is necessary to manually adjust the stroke between the jack and the lifting cylinder. It is easy for nuts and iron blocks to fly out during the operation. It is not conducive to the operation of on-site staff, and the entire installation process requires the cooperation of multiple people, and the on-site staff are in a very dangerous working environment. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to solve the problem that the workpiece is easy to fly out when the jack lifts the rocker arm lifting cylinder.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A coal mining machine rocker arm lifting cylinder installation auxiliary device includes a buffer leather pad, a support plate and a connecting cylinder. The bottom of the support plate is provided with a connecting cylinder, wherein the interior of the connecting cylinder is provided with an inner groove for connecting a jack, and the top of the support plate is provided with a buffer leather pad in contact with the rocker arm.

[0007] The present application sets a connecting cylinder at the bottom of the support plate, and the connecting cylinder is engaged with the output shaft of the jack, thereby ensuring the stability between the auxiliary device of the present application and the jack, avoiding the risk of the auxiliary device tilting and splashing during the installation process. At the same time, a buffer pad is set above the support plate, and the buffer pad can ensure the sealing and anti-slip effect between the auxiliary device and the rocker arm. With the help of the auxiliary installation tool of the present application, the entire installation process driven by the jack is safer, more reliable, more efficient, and more convenient, which can save human resources and is simple to operate.

[0008] As a further solution of the utility model: the bottom corners of the cushioning leather pad are detachably connected to the support plate via fixing parts.

[0009] As a further solution of the utility model: the fixing member is a bolt or a pin.

[0010] As a further solution of the utility model: the buffer leather pad and the support plate are both in an arc-shaped plate structure adapted to the rocker arm.

[0011] As a further solution of the utility model: the support plate is made of steel plate.

[0012] As a further solution of the utility model: a surface of the buffer leather pad in contact with the rocker arm is provided with a plurality of anti-slip grooves.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The present application sets a connecting cylinder at the bottom of the support plate, and the connecting cylinder is engaged with the output shaft of the jack, thereby ensuring the stability between the auxiliary device of the present application and the jack, avoiding the risk of the auxiliary device tilting and splashing during the installation process. At the same time, a buffer pad is set above the support plate. The buffer pad can ensure the sealing and anti-slip effect between the auxiliary device and the rocker arm lifting cylinder. With the help of the auxiliary installation tool of the present application, the entire installation process driven by the jack is safer, more reliable, more efficient and more convenient, which can save human resources and is simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the connection between the auxiliary device, the jack and the rocker arm in the embodiment of the utility model;

[0016] Figure 2 It is a schematic diagram of the connection between the auxiliary device and the jack in the embodiment of the utility model;

[0017] Figure 3 A schematic diagram of an auxiliary device according to an embodiment of the utility model;

[0018] Explanation of the reference numerals: 1. Auxiliary tooling; 101. Buffer pad; 102. Support plate; 103. Connecting cylinder; 104. Fixing piece; 2. Rocker arm lifting cylinder; 3. Jack; 4. Pad. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1 , Figure 2 and Figure 3 A coal mining machine rocker arm lifting cylinder installation auxiliary device includes an auxiliary tooling 1 installed above a jack 3, wherein the auxiliary tooling 1 includes a buffer leather pad 101, a support plate 102, a connecting cylinder 103 and a fixing part 104, a connecting cylinder 103 is provided at the bottom of the support plate 102, wherein an inner groove is opened inside the connecting cylinder 103, and a buffer leather pad 101 is installed on the top of the support plate 102.

[0021] It should be noted that the inner groove provided inside the connecting cylinder 103 is used to engage with the output shaft of the jack 3. When the jack 3 lifts the rocker arm lifting cylinder 2 in the later stage, its output shaft will not directly contact the rocker arm lifting cylinder 2, but the auxiliary device of the present application is arranged between the rocker arm lifting cylinder 2 and the output shaft. Specifically, the output shaft of the jack 3 directly extends into the connecting cylinder 103, and then the connecting cylinder 103 is directly lifted by the jack 3, and then the support plate 102 and the buffer leather pad 101 are lifted, and finally the rocker arm lifting cylinder 2 can be driven to lift;

[0022] It should be noted that the specific size of the connecting cylinder 103 of the present application can be changed according to the diameter of the output shaft of the jack. The connecting cylinder 103 of the present application has an outer diameter of approximately 76 mm, an inner diameter of approximately 56 mm, and a height of approximately 80 mm, and plays the role of connecting the jack.

[0023] Reference Figure 2 and Figure 3 The buffer pad 101 is in an arc-shaped structure, and the arc angle of the buffer pad 101 just fits with the cylindrical outer wall of the rocker arm 2, ensuring the seal between the buffer pad 101 and the rocker arm 2. At the same time, the side of the buffer pad 101 in contact with the rocker arm 2 is also provided with anti-skid patterns. The anti-skid patterns can ensure the anti-skid performance between the rocker arm 2 and the buffer pad 101, thereby ensuring the stability of the rocker arm when the jack 3 is lifted;

[0024] It should be noted that the buffer leather pad 101 is made of belt conveyor leather with a length of about 252 mm, a width of about 180 mm, and a thickness of about 10 mm. The size is determined according to actual needs and is not limited in this application. Four through holes with a diameter of 20 mm are drilled on the four sides. The buffer leather pad 101 increases surface friction and is wear-resistant and anti-slip.

[0025] Reference Figure 2 and Figure 3 The support plate 102 is also an arc-shaped structure, and the size of the support plate 102 is smaller than that of the buffer pad 101. Such a design makes it easy to observe the contact relationship between the buffer pad 101 and the rocker arm lifting cylinder 2. The top of the support plate 102 fits tightly with the buffer pad 101, and the two can be detachably connected through a fixing 104. Specifically, fixings 104 are installed at the four corners of the support plate 102, and are detachably connected to the buffer pad 101 through the fixings 104, which is convenient for replacing the buffer pad 101; the fixings 104 are bolts or pins.

[0026] It should be noted that the support plate 102 is made of steel plate, which is processed into an arc shape by oxygen welding, and has through holes with a diameter of about 20 mm drilled on the four sides to play a supporting role.

[0027] The specific operating principles of this application are as follows:

[0028] When installing the connecting pin sleeve of the rocker arm lifting jack 3 and the rocker arm lifting cylinder 2 of the coal mining machine, first measure the total height dimension (to prevent the hydraulic jack from having insufficient stroke), pad the bottom of the hydraulic jack with a pad 4 (the pad 4 of this application is made of road wood), and then put the connecting cylinder 103 on the output shaft of the jack 3, so that the buffer leather pad 101 is tightly attached to the lower surface of the rocker arm of the coal mining machine, and the other side of the leather pad is tightly attached to the support plate 102. Then manually use the booster rod to operate the jack 3 to slowly lift the rocker arm 2. Thus, the rocker arm lifting jack 3 is installed smoothly.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coal mining machine rocker arm lifting cylinder installation auxiliary device, characterized in that: The invention comprises a cushioning leather pad (101), a support plate (102) and a connecting cylinder (103), wherein the bottom of the support plate (102) is provided with a connecting cylinder (103), wherein an inner groove for connecting a jack is provided inside the connecting cylinder (103), and the top of the support plate (102) is provided with a cushioning leather pad (101) in contact with a rocker arm.

2. The auxiliary device for installing the rocker arm lifting cylinder of a coal mining machine according to claim 1, characterized in that: The bottom corners of the cushioning leather pad (101) are detachably connected to the support plate (102) via fixing members (104).

3. The auxiliary device for installing the rocker arm lifting cylinder of a coal mining machine according to claim 2, characterized in that: The fixing member (104) is a bolt or a pin.

4. The auxiliary device for installing the rocker arm lifting cylinder of a coal mining machine according to claim 1, characterized in that: The buffer leather pad (101) and the support plate (102) are both in the form of an arc-shaped plate structure adapted to the rocker arm.

5. The auxiliary device for installing the rocker arm lifting cylinder of a coal mining machine according to claim 1, characterized in that: The support plate (102) is made of steel plate.

6. The auxiliary device for installing the rocker arm lifting cylinder of a coal mining machine according to claim 1, characterized in that: A plurality of anti-skid grooves are provided on the side of the cushioning leather pad (101) that contacts the rocker arm.

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