Connector structure for coal mine hydraulic support
By designing a connector structure for hydraulic supports in coal mines and adopting adjustment methods using pin holes and hinged ears, the problems of collision between the coal mining machine drum and the top beam and the increase in support weight were solved, achieving stable connection and improved strength under different upward mining angles.
Patent Information
- Application Number
- CN202520465699.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-03-17
AI Technical Summary
When the angle of inverted mining is large, the existing hydraulic support connectors in coal mines cause the coal mining machine drum to collide with the roof beam, and the increased travel of the telescopic jacks leads to an increase in the weight of the support.
Design a connector structure for hydraulic supports in coal mines, including a connector and a fixing frame. The design of pin holes and hinged ears allows for adjustment of the connection method at different mining angles, avoids collision between the coal mining machine drum and the top beam, and improves the structural strength through reinforcing ribs.
It effectively solves the problem of collision between the coal mining machine drum and the top beam when the upward mining angle is large, while avoiding the increase in the weight of the support and improving the stability and strength of the connection.
Smart Images
Figure CN223707691U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of coal mining, especially a connecting head structure for coal mine hydraulic support. BACKGROUND
[0002] The connecting head for coal mine hydraulic support is a component for connecting the hydraulic support and the coal mining machine, and the ordinary connecting head is usually designed according to 5° upward mining, when the coal mine condition is not good and the upward mining angle is large, the drum of the coal mining machine will collide with the front end of the top beam of the hydraulic support, and the collision will be more serious when the condition of the roof and floor is poor. In the face of the above situation, the length of the support top beam is usually adjusted by lengthening the stroke of the telescopic jack, and the length of the telescopic beam and the top beam will also be lengthened accordingly, which leads to the obvious increase of the weight of the support. SUMMARY
[0003] The utility model aims at overcoming the defects of the prior art, and provides a connecting head structure for coal mine hydraulic support to solve the technical problems in the background.
[0004] The utility model aims at overcoming the defects of the prior art, and provides a connecting head structure for coal mine hydraulic support to solve the technical problems in the background.
[0005] A connecting head structure for coal mine hydraulic support, comprising a connecting head and a fixing frame fixed on the base of the hydraulic support, the fixing frame comprises two mounting plates fixed on the base of the hydraulic support, the two mounting plates are arranged in parallel with each other and form a cavity for mounting the connecting head, the connecting head comprises a mounting part and a hinge lug integrally formed with the mounting part, a hinge hole is arranged on the hinge lug, at least two pin holes are arranged on the mounting part and spaced apart along the length direction of the mounting part, a mounting hole is arranged on the fixing frame and penetrates the two mounting plates, and a connecting pin passes through the mounting hole and any pin hole to fix the mounting part of the connecting head in the cavity formed by the two mounting plates.
[0006] In the above utility model, further, a support plate is arranged between the two mounting plates.
[0007] In the above utility model, further, a reinforcing rib plate is arranged on the outer wall of each of the two mounting plates.
[0008] In the above utility model, further, the distance between the pin holes is 100-150mm.
[0009] In the above utility model, further, the hinge lug comprises two hinge lugs integrally formed on the mounting part, the distance between the two hinge lugs is 120mm, and the thickness is 120mm.
[0010] The utility model has the advantages of:
[0011] The connecting head has at least two pin holes, the leftmost pin hole can be connected with the fixing frame when the upward mining angle is less than or equal to 5 degrees, the right pin hole can be connected with the fixing frame by adjusting the connecting head when the upward mining angle is greater than 5 degrees, thereby increasing the empty top distance, and the problem of the drum of the coal mining machine cutting the top beam when the upward mining angle is large is solved well; meanwhile, the problem of the weight of the support being increased due to the lengthened stroke of the telescopic jack is also solved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of the utility model;
[0013] Figure 2 It is an installation structural schematic diagram of the utility model;
[0014] Figure 3 It is another installation structural schematic diagram of the utility model;
[0015] Figure 4 It is a use state diagram of the utility model;
[0016] Figure 5 It is a use state diagram of the utility model; Figure 4 It is a partial enlarged view of part A;
[0017] Figure 6 It is a partial enlarged view of part B; Figure 4 It is a partial enlarged view of part B;
[0018] Figure 7 It is another use state diagram of the utility model;
[0019] Figure 8 It is another use state diagram of the utility model; Figure 7 It is a partial enlarged view of part C.
[0020] In the figure, 100 is an installation part, 110 is a hinged lug, 120 is a hinged hole, 130 is a pin hole, 200 is an installation plate, 210 is a cavity, 220 is an installation hole, 230 is a support plate, 240 is a reinforcing rib plate, and 300 is a connecting pin. DETAILED DESCRIPTION
[0021] The embodiments of the utility model will be described below through specific examples, and other advantages and effects of the utility model can be easily understood by those skilled in the art according to the disclosure of the specification. The utility model can also be implemented or applied through different specific embodiments, and various modifications or changes can be made to the details in the specification based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that the following examples and features in the examples can be combined with each other without conflict.
[0022] It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not drawn according to the number, shape and size of the components in actual implementation, and the shape, number and proportion of each component in actual implementation can be changed arbitrarily, and the component layout pattern can be more complex.
[0023] Embodiment:
[0024] A connecting head structure for a coal mine hydraulic support, referring to the accompanying Figure 1 - the accompanying Figure 3 , including a connecting head and a fixing frame, the fixing frame includes two mounting plates 200, the two mounting plates 200 are arranged parallel to each other and form a cavity 210 for mounting the connecting head, the connecting head includes a mounting portion 100 and a hinge lug 110 integrally formed with the mounting portion 100, the hinge lug 110 is provided with a hinge hole 120, and the mounting portion 100 is provided with at least two pin holes 130 arranged at intervals along the length direction of the mounting portion 110, and the distance between the pin holes 130 is 100-150mm. The fixing frame is provided with a mounting hole 220 penetrating through the two mounting plates 200, and a connecting pin 300 penetrates through the mounting hole 220 and any pin hole 130 to fix the mounting portion 100 of the connecting head in the cavity 210 formed by the two mounting plates 200.
[0025] The present application is specific to the use process, referring to the accompanying Figure 4 and the accompanying Figure 5 , the fixing frame is fixed on the hydraulic support base through the two mounting plates 200, and the mounting portion 100 of the connecting head is placed in the cavity 210 between the two mounting plates 200. Referring to the accompanying Figure 6 , when the overlying angle is ≤5°, the leftmost pin hole 130 on the mounting portion 100 is aligned with the mounting hole 220, and then the connecting pin 300 is inserted into the leftmost pin hole 130 to fix the connecting head. Finally, the connecting head is hinged on the coal mining machine through the hinge hole 120. Continue to refer to the accompanying Figure 6 , if it is necessary to adjust the overlying angle to >5°, the coal mining machine will move to the side of the top beam, which may cause the coal mining machine drum to separate from the top beam or collide with the top beam. At this time, the connecting pin 300 can be removed, the right pin hole 130 on the mounting portion 100 is aligned with the mounting hole 220, and then the connecting pin 300 is used for fixation. At this time, the whole coal mining machine will move outward. Participate in the accompanying Figure 7 and the accompanying Figure 8 , when the coal mining machine moves outward as a whole, the distance between the coal mining machine drum and the top beam increases, and when the overlying angle is adjusted to >5° at this time, the coal mining machine drum will not collide with the top beam.
[0026] In the above embodiment, as preferred, the support plate 230 is arranged between the two mounting plates 200 to strengthen the use intensity of the mounting rack, secondly, the reinforcing rib plate 240 is arranged on the outer wall of the two mounting plates 200 respectively to further strengthen the use intensity of the mounting rack, and finally to strengthen the connecting intensity between the connecting head and the coal mining machine, the two hinged ears 110 are integrally formed on the mounting part 100, the connecting head is hinged with the coal mining machine through the two hinged ears 110 to prevent the connecting head from falling off in the use process. Secondly, the spacing between the two hinged ears 110 is 120mm, and the thickness of each hinged ear 110 is 120mm.
[0027] The above embodiment only expresses the specific implementation manner of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent range of the present application. It should be pointed out that for the ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection range of the present application.
Claims
1. A connecting head structure for a coal mine hydraulic support, characterized in that, The connecting head and the fixing frame fixed on the hydraulic support base, the fixing frame comprises two mounting plates fixed on the hydraulic support base, the two mounting plates are arranged parallel to each other and form a cavity for mounting the connecting head, the connecting head comprises a mounting part and a hinge lug integrally formed with the mounting part, the hinge lug is provided with a hinge hole, at least two pin holes are arranged on the mounting part and spaced along the length direction of the mounting part, the fixing frame is provided with a mounting hole penetrating through the two mounting plates, and a connecting pin is arranged to penetrate through the mounting hole and any pin hole to fix the mounting part of the connecting head in the cavity formed by the two mounting plates.
2. The connecting head structure for a coal mine hydraulic support according to claim 1, characterized in that, Support plates are arranged between the two mounting plates.
3. The connecting head structure for a hydraulic support of a coal mine according to claim 1, characterized in that, Reinforcing rib plates are arranged on the outer walls of the two mounting plates respectively.
4. The connecting head structure for a hydraulic support of a coal mine according to claim 1, characterized in that, The distance between the pin holes is 100-150 mm.
5. The connecting head structure for a hydraulic support of a coal mine according to claim 1, characterized in that, The hinge lug comprises two hinge lugs integrally formed on the mounting part, the distance between the two hinge lugs is 120 mm, and the thickness is 120 mm.