Pin shaft for reduction gearbox

Abstract

The utility model relates to the technical field of reduction gearbox pin shafts, and discloses a reduction gearbox pin shaft which comprises a pin shaft head, heat dissipation fins are arranged on the side wall of the periphery of the pin shaft head, a pin shaft column is arranged in the middle of one end of the pin shaft head, a connecting insertion hole is formed in the end, away from the pin shaft head, of the pin shaft column, and the pin shaft head is connected with the pin shaft column. A connecting bolt is arranged in the connecting inserting hole, a fastening nut is arranged on the periphery of the end, penetrating through the connecting inserting hole, of the connecting bolt, and a gasket is arranged on the periphery of the pin shaft column located on one side of the connecting bolt. The heat dissipation fin structure is arranged on the pin shaft head, so that the heat dissipation area of the pin shaft head can be increased, the pin shaft has better heat dissipation performance, the durability of the pin shaft can be effectively improved, and the service life of the pin shaft is prolonged; the heat dissipation grooves can increase the heat dissipation area of the gasket, so that the gasket has better heat dissipation performance, the durability of the gasket can be improved, and the service life of the gasket is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of reduction gearbox pin shafts, in particular to a reduction gearbox pin shaft. Background Art

[0002] Pins are a type of standardized fasteners that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinges of two parts to form hinged connections. Pins are usually locked with cotter pins, which are reliable and easy to disassemble. Pins for reducers can be used to connect reducers with coal mining machine rocker arms and other parts. Pins for reducers are prone to high temperatures due to friction during hinged rotation.

[0003] The existing reduction gearbox pin shaft and the gasket used thereon have poor heat dissipation. When used for a long time, the high temperature may affect their performance or even cause them to break. Therefore, a reduction gearbox pin shaft is proposed herein. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a reduction gearbox pin shaft, which effectively solves the problem that the performance of the prior reduction gearbox pin shaft is easily affected by high temperature.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pin shaft for a reduction gearbox, comprising a pin shaft head, a heat dissipation fin is arranged on the outer side wall of the pin shaft head, a pin shaft column is arranged in the middle of one end of the pin shaft head, a connecting socket is arranged at one end of the pin shaft column away from the pin shaft head, a connecting bolt is arranged in the connecting socket, the connecting bolt passes through the connecting socket and a fastening nut is arranged on the outer side of one end, a gasket is arranged on the outer side of the pin shaft column on one side of the connecting bolt, a through hole is arranged in the middle of the gasket at a position where it is connected to the pin shaft column, and heat dissipation grooves are distributed in a ring array on one side wall of the gasket.

[0006] Preferably, the heat dissipation fins are formed on the pin shaft head, and the heat dissipation fins are distributed in a circular array on the pin shaft head. The heat dissipation fins can increase the heat dissipation area of ​​the pin shaft head, so that the pin shaft has better heat dissipation performance, thereby improving the durability of the pin shaft and extending the service life of the pin shaft.

[0007] Preferably, the pin column is formed on the pin head, and the connecting socket is formed on the pin column.

[0008] Preferably, the connecting bolt is plugged into the pin column through the connecting socket, the fastening nut is threadedly connected to the connecting bolt, and the connecting bolt and the nut cooperate with the pin to fasten the workpiece connected by the pin.

[0009] Preferably, the through hole is formed in the middle of the gasket, the heat dissipation groove is formed on the gasket, the pin column and the gasket are plugged into the through hole, and the heat dissipation groove can increase the heat dissipation area of ​​the gasket, so that the gasket has better heat dissipation performance, improves the durability of the gasket, and extends the service life of the gasket.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] In the pin shaft for the reduction gearbox, by arranging a heat dissipation fin structure on the pin shaft head, the heat dissipation area of ​​the pin shaft head can be increased, so that the pin shaft has better heat dissipation performance, which can effectively improve the durability of the pin shaft and extend the service life of the pin shaft; the heat dissipation groove can increase the heat dissipation area of ​​the gasket, so that the gasket has better heat dissipation performance, which can improve the durability of the gasket and extend the service life of the gasket. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the pin shaft head and the pin shaft column in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the gasket in the utility model;

[0016] In the figure: 1. pin shaft head; 2. heat dissipation fin; 3. pin shaft column; 4. connecting socket; 5. connecting bolt; 6. fastening nut; 7. gasket; 8. through hole; 9. heat dissipation groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] In this embodiment, Figure 1-3The utility model includes a pin head 1, a heat dissipation fin 2 is arranged on the outer side wall of the pin head 1, a pin column 3 is arranged in the middle of one end of the pin head 1, a connecting hole 4 is arranged at the end of the pin column 3 away from the pin head 1, a connecting bolt 5 is arranged in the connecting hole 4, the connecting bolt 5 passes through the connecting hole 4 and a fastening nut 6 is arranged on the outer periphery of one end, a gasket 7 is arranged on the outer periphery of the pin column 3 on one side of the connecting bolt 5, a through hole 8 is arranged at the middle of the gasket 7 at the position where it is connected to the pin column 3, and heat dissipation grooves 9 are distributed in a ring array on one side wall of the gasket 7.

[0019] Among them, the heat dissipation fins 2 are formed on the pin shaft head 1, and the heat dissipation fins 2 are distributed in a circular array on the pin shaft head 1. The heat dissipation fins 2 can increase the heat dissipation area of ​​the pin shaft head 1, so that the pin shaft has better heat dissipation performance, thereby improving the durability of the pin shaft and extending the service life of the pin shaft.

[0020] Among them, the pin column 3 is formed on the pin head 1, the connecting socket 4 is formed on the pin column 3, the connecting bolt 5 is plugged into the pin column 3 through the connecting socket 4, the fastening nut 6 is connected to the connecting bolt 5 through a threaded connection, and the connecting bolt 5 and the nut cooperate with the pin to fasten the workpiece connected by the pin.

[0021] Among them, the through hole 8 is formed in the middle of the gasket 7, the heat dissipation groove 9 is formed on the gasket 7, the pin column 3 and the gasket 7 are plugged through the through hole 8, and the heat dissipation groove 9 can increase the heat dissipation area of ​​the gasket 7, so that the gasket 7 has better heat dissipation performance, improves the durability of the gasket 7, and extends the service life of the gasket 7.

[0022] Working principle: The pin shaft for the reduction gearbox can be used to connect the reduction gearbox with the rocker arm of the coal mining machine and other parts. When using the pin shaft, remove the fastening nut 6 to enable the connecting bolt 5 to be removed, and then remove the gasket 7. Insert the pin shaft through the pin shaft column 3 into the hinge socket of the reduction gearbox and the rocker arm of the coal mining machine and other parts, then put the gasket 7 on one end of the pin shaft column 3 passing through the hinge socket, and then tighten the pin shaft with the connecting bolt 5 and the fastening nut 6. The heat dissipation fins 2 can increase the heat dissipation area of ​​the pin shaft head 1, so that the pin shaft has better heat dissipation performance. The heat dissipation grooves 9 can increase the heat dissipation area of ​​the gasket 7, so that the gasket 7 has better heat dissipation performance. This can improve the durability of the pin shaft and the gasket 7, and extend the service life of the pin shaft and the gasket 7.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] 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 pin for a reduction gearbox, comprising a pin head (1), characterized in that: A heat dissipation fin (2) is arranged on the outer side wall of the pin shaft head (1); a pin shaft column (3) is arranged in the middle of one end of the pin shaft head (1); a connecting socket (4) is arranged at one end of the pin shaft column (3) away from the pin shaft head (1); a connecting bolt (5) is arranged in the connecting socket (4); the connecting bolt (5) passes through the connecting socket (4); a fastening nut (6) is arranged on the outer side of one end; a gasket (7) is arranged on the outer side of the pin shaft column (3) on one side of the connecting bolt (5); a through hole (8) is arranged in the middle of the gasket (7) at a position where it is connected to the pin shaft column (3); and heat dissipation grooves (9) are distributed in a ring array on one side wall of the gasket (7).

2. The pin shaft for a reduction gearbox according to claim 1, characterized in that: The heat dissipation fins (2) are formed on the pin shaft head (1), and the heat dissipation fins (2) are distributed in a ring array on the pin shaft head (1).

3. The pin shaft for a reduction gearbox according to claim 1, characterized in that: The pin shaft column (3) is formed on the pin shaft head (1), and the connecting socket (4) is formed on the pin shaft column (3).

4. The pin shaft for a reduction gearbox according to claim 1, characterized in that: The connecting bolt (5) is plugged into the pin column (3) via the connecting socket (4), and the fastening nut (6) is connected to the connecting bolt (5) via threads.

5. The pin shaft for a reduction gearbox according to claim 1, characterized in that: The through hole (8) is formed in the middle of the gasket (7), the heat dissipation groove (9) is formed on the gasket (7), and the pin column (3) and the gasket (7) are plugged through the through hole (8).

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