Connecting structure for enhancing stability of body of coal mining machine
By using a combination structure of tie rods and nuts in the body of the coal mining machine, the problem of insufficient connection strength of the body during thin coal seam mining is solved, and the stability under complex geological conditions is improved, ensuring the normal operation of the coal mining machine.
Patent Information
- Application Number
- CN202520124701.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-20
AI Technical Summary
When mining thin coal seams, existing coal mining machines suffer from insufficient connection strength after the machine height is reduced, which can lead to instability under complex geological conditions and may result in machine body separation accidents.
The combination structure of tie rod and nut is adopted. Through the design of tie holes and clamping plates, the connection stability of the coal mining machine body is enhanced. The tensioning effect of tie rod and nut is used to fix the three sections of the machine body.
By reducing the overall height of the coal mining machine, the overall stability of the machine body is improved, preventing the machine body from loosening and breaking, and ensuring the normal operation of the coal mining machine.
Smart Images
Figure CN223549257U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining machinery technology, specifically a connection structure for strengthening the stability of a coal mining machine body. Background Technology
[0002] In the coal mining process, the coal mining machine plays a crucial role, serving as the primary mechanical equipment for coal extraction. A coal mining machine typically consists of three sections, all connected by bolts using connecting plates. The overall machine body must withstand strong vibrations without loosening or breaking. Due to the influence of geological conditions at the mining face and the thickness of the coal seam, specific requirements apply to the selection of coal mining machines. When mining thin coal seams, the height of the coal mining machine needs to be reduced. The original connection structure cannot meet this height requirement. Therefore, technicians considered removing the connecting plate at the top of the machine body to reduce its overall height. However, if only the connecting plates on both sides are retained and the top plate is removed, the connection strength of the unit will not meet the requirements. In complex geological conditions such as faults, the coal mining machine body will lose stability, potentially leading to a machine body separation accident. To ensure the normal operation of the coal mining machine, a connection structure to strengthen the stability of the coal mining machine body is proposed. Utility Model Content
[0003] The present invention aims to solve the above problems and thus provide a connection structure that strengthens the stability of the coal mining machine body.
[0004] The technical solution adopted by this utility model to solve the aforementioned problem is:
[0005] A connection structure for strengthening the stability of a coal mining machine includes a front section, a middle section, and a rear section of the coal mining machine. Both sides of the connection ends of the front, middle, and rear sections are provided with mating plates. Adjacent mating plates are connected by bolts. The top and bottom of the mating plates of the three sections are provided with opposing pull holes. A pair of pull rods are inserted into the multiple opposing pull holes at the top, and another pair of pull rods are inserted into the multiple opposing pull holes at the bottom. The two ends of the pull rods extend away from the mating plates of the front and rear sections, respectively, and are suspended by nuts.
[0006] Furthermore, clamping plates are provided on both sides of the front and rear sections of the machine body. The clamping plates are located on the side of the connecting plate away from the middle section of the machine body. Through holes are provided on the clamping plates, and the end of the pull screw extends through the through holes to the side of the clamping plate away from the connecting plate and is screwed with a nut; thus enhancing the pulling effect of the machine body.
[0007] Furthermore, a pair of horizontal plates are provided on both sides of the middle section of the machine body, located above and below the tie rod. The two horizontal plates form a tie rod fixing groove on the upper and lower sides of the tie rod, which serves to limit the tie rod and prevent it from being damaged by collision.
[0008] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are:
[0009] This utility model has a simple structure. While reducing the overall height of the coal mining machine, it uses tie rods and nuts to tighten and secure the machine body, thereby fixing the three sections of the machine body as a whole, improving the overall stability of the machine body, and making operation convenient. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;
[0011] The components in the diagram are labeled as follows: front section 1, middle section 2, rear section 3, connecting plate 4, bolt 5, tie rod 6, clamping plate 7, nut 8, and cross plate 9. Detailed Implementation
[0012] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0013] See Figure 1 A connection structure for strengthening the stability of a coal mining machine includes a front section body 1, a middle section body 2, and a rear section body 3. Both sides of the connection end of the front section body 1, the middle section body 2, and the rear section body 3 are provided with connecting plates 4. Adjacent connecting plates 4 are connected by bolts 5. The top and bottom of the connecting plates 4 of the three sections of the machine are provided with pull holes. The same pull screw 6 is inserted into the multiple pull holes on the upper side and another pull screw 6 is inserted into the multiple pull holes on the lower side. The two ends of the pull screw 6 extend away from the connecting plates 4 of the front section body 1 and the rear section body 3 respectively, and are suspended with nuts 8.
[0014] Furthermore, both sides of the front section of the machine body 1 and the rear section of the machine body 3 are provided with clamping plates 7. The clamping plates 7 are located on the side of the connecting plate 4 away from the middle section of the machine body 2. The clamping plates 7 are provided with through holes. The end of the pull screw 6 passes through the through holes and extends to the side of the clamping plate 7 away from the connecting plate 4, and screws in the nut 8; thus enhancing the pull effect of the machine body.
[0015] Furthermore, a pair of horizontal plates 9 are provided on both sides of the middle section of the machine body 2 and on the upper and lower sides of the pull screw 6. The two horizontal plates 9 form a screw fixing groove on the upper and lower sides of the pull screw 6; they limit the pull screw 6 and prevent it from being damaged by collision.
[0016] This utility model has a simple structure. While reducing the overall height of the coal mining machine, it uses a tie rod and nut to tighten the machine body, thereby fixing the three sections of the machine body as a whole, strengthening the stability of the connection between the coal mining machine body, and making operation convenient.
[0017] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.
Claims
1. A connection structure for strengthening the stability of a coal mining machine body, comprising a front section, a middle section, and a rear section of the coal mining machine body, wherein mating plates are provided on both sides of the connection ends of the front section, the middle section, and the rear section, and adjacent mating plates are connected by bolts, characterized in that: The top and bottom of the docking plates of the three sections of the machine body are provided with pull holes. The same pair of pull rods are inserted into the multiple pull holes on the upper side, and another pair of pull rods are inserted into the multiple pull holes on the lower side. The two ends of the pull rods extend to the side away from the docking plates of the front section and the rear section of the machine body, respectively, and are suspended with nuts.
2. The connection structure for strengthening the stability of a coal mining machine body according to claim 1, characterized in that: Both sides of the front and rear sections of the machine body are equipped with clamping plates. The clamping plates are located on the side of the connecting plate away from the middle section of the machine body. The clamping plates have through holes, and the end of the pull screw extends through the through holes to the side of the clamping plate away from the connecting plate and is screwed with a nut.
3. The connection structure for strengthening the stability of a coal mining machine body according to claim 1, characterized in that: A pair of horizontal plates are installed on both sides of the middle section of the machine body, located above and below the tie rod. The two horizontal plates form the tie rod fixing groove on the upper and lower sides of the tie rod.