Speed reducer gear casting

Abstract

The utility model discloses a speed reducer gear casting which comprises a gear body and a heat dissipation assembly. The heat dissipation assembly comprises heat conduction holes formed in gear teeth on the gear body. According to the speed reducer gear casting, the heat conduction blocks installed on the two sides of the heat conduction holes in the gear teeth on the gear body can conduct heat generated by friction and other reasons in meshing transmission of the gear teeth on the gear body, and therefore heat dissipation is achieved through the heat dissipation holes with the large heat dissipation area and space in the heat conduction blocks. According to the gear body, the heat dissipation holes are formed in the gear body, and the multiple sets of side heat dissipation cavities and bottom heat dissipation cavities are formed in the outer sides of the heat dissipation holes, so that rapid heat dissipation in the use process of the gear body is achieved, gear teeth in the gear body are prevented from being overheated, abrasion and fatigue of the gear teeth are reduced, and the overall service life of the gear body is prolonged; and the heat conduction blocks in the heat conduction holes can be conveniently disassembled, so that after the gear body is damaged after being used for a long time, the heat conduction blocks are disassembled for repeated utilization.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed reducer, concretely to a speed reducer gear casting. BACKGROUND

[0002] Speed reducer gear casting is the gear inside the speed reducer, mainly used for the reduction in transmission, and the speed reducer is an independent component composed of gear transmission, worm transmission, gear-worm transmission closed in rigid shell, commonly used as the speed reduction transmission device between prime mover and working machine, its main function is to match speed and transmit torque between prime mover and working machine or actuator, increase output torque by reducing speed, thereby reducing the inertia of load.

[0003] The existing speed reducer gear casting, when cooling the gear, generally cools through the heat dissipation holes and the installation of heat dissipation blocks on the gear teeth, this heat dissipation structure does not have a large heat dissipation space and area, and it is not convenient to uniformly conduct the heat inside and outside the gear teeth, therefore, we propose a speed reducer gear casting. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] Therefore, the utility model adopts the technical scheme:

[0006] A speed reducer gear casting, comprising: a gear body, a heat dissipation assembly; the heat dissipation assembly comprises heat conduction holes opened in the gear teeth of the gear body, first and second fixed rings movably installed on the two sides of the gear body, heat conduction blocks fixedly installed on the outer sides of the first and second fixed rings, heat dissipation holes opened in the heat conduction blocks, side heat dissipation cavities arranged on the two sides of the heat dissipation holes, and bottom heat dissipation cavities arranged on one side of the heat dissipation holes.

[0007] Preferably, installation grooves are also opened on the two sides of the gear body, and the first and second fixed rings are installed in the installation grooves.

[0008] Preferably, mounting ears are also fixedly installed on the inner sides of the first and second fixed rings, and threaded holes are also arranged and penetrated on the gear body.

[0009] Preferably, screws are movably installed in the mounting ears and the threaded holes.

[0010] Preferably, the heat conduction blocks are movably matched and installed in the heat conduction holes.

[0011] Preferably, the heat dissipation holes are triangular column structures.

[0012] By adopting the above technical scheme, the utility model has the beneficial effects that:

[0013] 1、the utility model discloses, gear body upper gear tooth inner heat conduction hole both sides install the heat conduction block, can conduct the heat that gear body upper gear tooth meshing transmission produces because of friction etc., to the quick heat dissipation of gear body use through the larger heat dissipation area of heat conduction block and the heat dissipation hole of space, and the heat dissipation cavity and bottom heat dissipation cavity of a plurality of groups arranged outside the heat dissipation hole, to prevent the overheating of gear body in gear tooth, reduce its wear and tear and fatigue, and further prolong the service life of gear body whole.

[0014] 2、the utility model discloses, gear body both sides install the first fixed ring and the second fixed ring, also can conveniently dismantle the heat conduction block in heat conduction hole, to dismantle the heat conduction block and utilize repeatedly after the damage of gear body long -term use. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 it is the overall structural drawing of the utility model;

[0016] Figure 2 it is the explosion view of the utility model;

[0017] Figure 3 it is the structural drawing of gear body of the utility model;

[0018] Figure 4 it is the structural drawing of the first fixed ring of the utility model;

[0019] Figure 5 it is the utility model Figure 4 the close -up view of A.

[0020] Reference Signs:

[0021] 100, gear body;

[0022] 200, heat dissipation assembly;201, heat conduction hole;202, first fixed ring;203, second fixed ring;204, heat conduction block;205, heat dissipation hole;206, side heat dissipation cavity;207, bottom heat dissipation cavity;208, installation slot;209, mounting lug;210, screw hole;211, screw. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is explained in further detail below in conjunction with specific implementation manners and in reference to the drawings. It needs to be explained that the embodiment of the utility model and the features in the embodiment can be combined mutually in the case of no conflict.

[0024] Some embodiments of the utility model are described below in conjunction with the drawings to provide a reducer gear casting.

[0025] Embodiment one:

[0026] In combination Figures 1-5 The utility model provides a gear casting of speed reducer, include: gear body 100, heat dissipation subassembly 200, heat dissipation subassembly 200 include the heat conduction hole 201 that is set up in the gear body 100 upper gear tooth, gear body 100 both sides still respectively movable installation has first fixed ring 202 and second fixed ring 203, first fixed ring 202 and second fixed ring 203 outside all arrange fixed mounting have heat conduction block 204, all set up heat dissipation hole 205 in heat conduction block 204, the lateral heat dissipation cavity 206 that all arrange set up in heat dissipation hole 205 both sides side edge department, the bottom heat dissipation cavity 207 that arrange set up in heat dissipation hole 205 one side, gear body 100 both sides still all set up installation groove 208, and first fixed ring 202 and second fixed ring 203 all install in installation groove 208, first fixed ring 202 and second fixed ring 203 inside still all arrange fixed mounting have mounting ear 209, gear body 100 still arrange through set up threaded hole 210, mounting ear 209 with threaded hole 210 inside still all movable installation have screw 211, heat conduction block 204 movable matching installation in heat conduction hole 201, heat dissipation hole 205 is triangular column shape structure, and heat conduction block 204 is copper product.

[0027] Specifically, the gear casting of speed reducer is a gear inside the speed reducer, mainly used for transmission in the speed reduction; The heat conduction block 204 installed on both sides of the heat conduction hole 201 in the gear body 100 can conduct the heat generated in the gear body 100 due to friction and other reasons in the meshing transmission, so that the gear body 100 can be quickly and evenly cooled during use through the large heat dissipation area and the space heat dissipation hole 205 in the heat conduction block 204, and the multiple lateral heat dissipation cavities 206 and bottom heat dissipation cavities 207 arranged outside the heat dissipation hole 205, thereby preventing overheating in the gear body 100, reducing wear and fatigue, and prolonging the service life of the gear body 100 as a whole. The first fixed ring 202 and the second fixed ring 203 installed on both sides of the gear body 100 can also conveniently disassemble the heat conduction block 204 in the heat conduction hole 201, so that the heat conduction block 204 can be disassembled and reused after the gear body 100 is damaged after long-term use. The heat dissipation hole 205 in the heat conduction block 204 is in a triangular column shape structure, mainly used to ensure uniform heat conduction of the gear teeth, thereby ensuring the uniformity of heat dissipation to avoid overheating caused by poor heat dissipation effect in a certain position. The lateral heat dissipation cavities 206 and bottom heat dissipation cavities 207 arranged on both sides and the bottom of the heat dissipation hole 205 in the triangular column shape structure can also expand the heat dissipation space and area in the heat dissipation hole 205, thereby ensuring good heat dissipation effect.

[0028] The working principle and use process of the utility model:

[0029] In the gear reduction transmission in the speed reducer, when the gear body 100 meshes with other gears for transmission, the heat generated on the outer side of the gear due to friction in the transmission will be conducted to the heat conducting block 204 at the inner end, the heat on both sides of the heat conducting block 204 will be outwardly dissipated, and the heat inside the heat conducting block 204 will be evenly and efficiently internally dissipated through the inner end heat dissipation hole 205, the side heat dissipation cavity 206 and the bottom heat dissipation cavity 207 opened at the side and the bottom of the heat dissipation hole 205, in a larger space and area, so as to ensure the temperature on the gear through the rapid heat dissipation of the heat conducting block 204, thereby improving the good heat dissipation performance of the gear body 100 in use, and meanwhile, after the gear body 100 is damaged, the first fixing ring 202 and the second fixing ring 203 on both sides can be disassembled, and the heat conducting block 204 in the heat conducting hole 201 can also be taken out for reuse.

[0030] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A reducer gear casting, characterized by, Include: Gear body (100), heat dissipation assembly (200); The heat dissipation assembly (200) comprises the heat conduction hole (201) opened in the gear tooth of the gear body (100), the first fixed ring (202) and the second fixed ring (203) are movably installed on the both sides of the gear body (100) respectively, the heat conduction block (204) is fixedly installed on the outer side of the first fixed ring (202) and the second fixed ring (203), the heat dissipation hole (205) is opened in the heat conduction block (204), the side heat dissipation cavity (206) is arranged and opened at the both sides of the heat dissipation hole (205), and the bottom heat dissipation cavity (207) is arranged and opened at one side of the heat dissipation hole (205).

2. A reduction gear casting according to claim 1, wherein The both sides of the gear body (100) are also provided with installation grooves (208), and the first fixed ring (202) and the second fixed ring (203) are installed in the installation grooves (208).

3. A reduction gear casting according to claim 1, wherein The inner side of the first fixed ring (202) and the second fixed ring (203) is also provided with the mounting lug (209), and the gear body (100) is also provided with the threaded hole (210) arranged and opened.

4. A reduction gear casting according to claim 3, wherein The mounting lug (209) and the threaded hole (210) are movably installed with the screw (211).

5. The speed reducer gear casting according to claim 1, wherein The heat conduction block (204) is movably matched and installed in the heat conduction hole (201).

6. A reduction gear casting according to claim 1, wherein The heat dissipation hole (205) is a triangular column structure.

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