CN214274412U

CN214274412U - End transmission gear

Info

Publication number: CN214274412U
Application number: CN202120195646.5U
Authority: CN
Inventors: 洪新阳; 周学平; 盛强强; 陈斌辉; 石光兴; 彭翔
Original assignee: Zhejiang Feng'an Gear Co ltd
Current assignee: Zhejiang Feng'an Gear Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-09-24
Anticipated expiration: 2031-01-25

Abstract

The utility model discloses a tail end transmission gear, which comprises a gear body (1), wherein a plurality of teeth (2) are arranged on the gear body (1); the middle part of the gear body (1) is provided with a shaft hole (4), and the inner wall of the shaft hole (4) is provided with a plurality of oil suction holes (5); the two end parts of the shaft hole (4) are respectively connected with a high boss (6) and a low boss (7); each surface of the gear body (1) is provided with two grooves (8), and a heat dissipation shaft hole (9) is communicated between the two grooves (8) on each side; a plurality of water passing grooves (10) are formed in the inner surface of each heat dissipation shaft hole (9); the shaft hole (4) is arranged between the two grooves (8). The utility model discloses not only can improve the work efficiency who uses, still have installation stationarity height, long service life, radiating effect good, simple to operate and the little advantage of noise.

Description

End transmission gear

Technical Field

The utility model relates to a gear for tractor, especially a final drive gear.

Background

The existing tail end transmission gear of the tractor is directly connected with an axle and is one of important components in the transmission process of the tractor, but because the tractor drives on muddy land or an area with large dust, the tail end transmission gear is easily stuck by dust or mud, after the tractor is used for a period of time, the internal gears need to be cleaned and lubricated, and the integral working efficiency is low. Therefore, the existing end transmission gear has the problem of low working efficiency in the use process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a final drive gear. The utility model has the advantages of high work efficiency.

The technical scheme of the utility model: a tail end transmission gear comprises a gear body, wherein a plurality of teeth which are uniformly distributed are arranged on the outer side surface of the gear body; the middle part of the gear body is provided with a shaft hole which penetrates through the gear body up and down, and the inner wall of the shaft hole is provided with a plurality of oil suction holes which are uniformly distributed in an annular shape; one end of the shaft hole is connected with a high boss, and the other end of the shaft hole is connected with a low boss; the high boss and the low boss are both in a round table shape; each surface of the gear body is provided with two symmetrically distributed grooves, and a heat dissipation shaft hole is communicated between the two grooves on each side; a plurality of water passing grooves which are uniformly distributed in an annular shape are formed in the inner surface of each heat dissipation shaft hole; the shaft hole is arranged between the two grooves.

In the tail end transmission gear, mounting grooves are formed in positions, corresponding to teeth, of the gear body, and springs are mounted on two inner side walls of the mounting grooves; one end of each spring is provided with a magnet, and the springs are fixedly arranged on the side surfaces of the teeth through the magnets; the notch department of mounting groove installs two gaskets that are the symmetry and set up, and the medial surface of every gasket is laminated with the lateral surface of tooth bottom end portion.

In the above-mentioned final drive gear, both end portions of the shaft hole are provided with chamfers.

In the tail end transmission gear, a mute layer is laid on the surface of the external teeth; the diameter of the end part, close to the shaft hole, of the high boss is larger than the diameter of the end part, far away from the shaft hole, of the high boss; the diameter of the end part, close to the shaft hole, of the low boss is larger than the diameter of the end part, far away from the shaft hole, of the low boss.

Compared with the prior art, the utility model improves the existing end drive gear, and the lubricating oil can automatically flow and lubricate the gear in the process of using the gear by using the oil suction hole through the oil suction hole on the inner side wall of the shaft hole of the gear body, so that the manual lubrication work is not needed, and the working efficiency of the use is improved; the two end parts of the shaft hole are respectively connected with the high boss and the low boss which are both in a circular truncated cone shape, the inclined plane is utilized to facilitate the installation of the gear, the areas of the mutually contacted surfaces can be sequentially increased, the friction force between the mutually contacted surfaces is further sequentially increased, and the installation stability is improved; the high boss and the low boss are matched with the shaft hole to form a half shaft sleeve structure, so that the purpose of dispersing the weight borne by the transmission gear is achieved, the abrasion to the gear is reduced, and the service life is prolonged; the gear body is provided with the groove, so that the weight of the gear can be reduced to a certain extent by utilizing the groove, and the gear is convenient to mount; through the fact that the heat dissipation shaft holes are communicated between the two grooves, the inner surface of each heat dissipation shaft hole is provided with the water passing groove, the cooling area of the whole gear can be increased by means of the heat dissipation shaft holes and the water passing grooves, and therefore the phenomenon that the gear is overheated is avoided; and the circulation of the cooling liquid that the setting of crossing the basin can make things convenient for the outside to set up avoids appearing cooling liquid and stays on the gear and lead to the gear phenomenon such as rust to the life of gear has further been prolonged. In addition, the utility model discloses still through be equipped with the mounting groove on the gear body, be provided with two gaskets and springs in the mounting groove, utilize gasket and spring not only can fix the position of tooth, can also carry out certain buffering to tooth in the rotatory process of gear, reduce the impaired condition of gear, further prolonged life; the chamfers are arranged at the two end parts of the shaft hole, so that the gears can be conveniently installed by the chamfers; the mute layer is laid on the surface of the external teeth, and the noise generated by meshing in the working process of the gear can be reduced by utilizing the mute layer. Therefore, the utility model discloses not only can improve the work efficiency who uses, still have installation stationarity height, long service life, radiating effect good, simple to operate and the little advantage of noise.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

The labels in the figures are: 1-gear body, 2-teeth, 4-shaft hole, 5-oil suction hole, 6-high boss, 7-low boss, 8-groove, 9-heat dissipation shaft hole, 10-water passing groove, 11-mounting groove, 12-spring, 13-magnet, 14-gasket, 15-chamfer and 16-mute layer.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. A tail end transmission gear is formed as shown in figures 1 to 3 and comprises a gear body 1, wherein a plurality of teeth 2 which are uniformly distributed are arranged on the outer side surface of the gear body 1; the middle part of the gear body 1 is provided with a shaft hole 4 which penetrates through the gear body up and down, and the inner wall of the shaft hole 4 is provided with a plurality of oil suction holes 5 which are uniformly distributed in an annular shape; one end of the shaft hole 4 is connected with a high boss 6, and the other end is connected with a low boss 7; the high boss 6 and the low boss 7 are both in a circular truncated cone shape; each surface of the gear body 1 is provided with two symmetrically distributed grooves 8, and a heat dissipation shaft hole 9 is communicated between the two grooves 8 on each side; a plurality of water passing grooves 10 which are uniformly distributed in an annular shape are formed in the inner surface of each heat dissipation shaft hole 9; the shaft hole 4 is arranged between two grooves 8.

Mounting grooves 11 are formed in positions, corresponding to the teeth 2, of the gear body 1, and springs 12 are mounted on two inner side walls of the mounting grooves 11; a magnet 13 is arranged at one end of each spring 12, and the springs 12 are fixedly arranged on the side surfaces of the teeth 2 through the magnets 13; two gaskets 14 which are symmetrically arranged are arranged at the notch of the mounting groove 11, and the inner side surface of each gasket 14 is attached to the outer side surface of the bottom end part of the tooth 2; chamfers 15 are arranged at two end parts of the shaft hole 4; a mute layer 16 is laid on the surface of the external teeth 2; the diameter of the end part, close to the shaft hole 4, of the high boss 6 is larger than that of the end part, far away from the shaft hole 4, of the high boss 6; the diameter of the end part of the low boss 7 close to the shaft hole 4 is larger than that of the end part of the low boss 7 far away from the shaft hole 4.

The working principle is as follows: when the whole tail end transmission gear is in a transmission process, the teeth 2 and the teeth 2 collide with each other, and the teeth 2 push the spring 12 on one side and stretch the spring 12 on the other side in the collision process so that the spring 12 deforms; then, the tooth 2 collides with the two gaskets 14, and the movement of the tooth 2 is buffered by the gaskets 14 and the springs 12, so that the abrasion of the tooth 2 is reduced, and the service life is prolonged; meanwhile, the noise generated by the friction between the teeth 2 and the teeth 2 can be absorbed by the mute layer 16 on the teeth 2, so that a certain mute effect is achieved; when the gear needs to be lubricated, lubricating oil is added through the oil suction hole 5, and in the rotating process of the gear, the lubricating oil can automatically flow around the gear through the oil suction hole 5, so that the automatic lubrication work is completed; and after long-time work, the gear can produce a large amount of heats because the going on of transmission work on the gear body 1, and the work of dispelling the heat is carried out in the heat dissipation shaft hole 9 on the gear body 1 this moment, when needs carry out cooling work to the gear with the help of outside coolant liquid, as long as pour the coolant liquid into recess 8 in for the coolant liquid can be automatic along crossing basin 10 through whole gear body 1 parallel flow department, has improved holistic radiating effect.

Claims

1. An end drive gear characterized by: the gear comprises a gear body (1), wherein a plurality of teeth (2) which are uniformly distributed are arranged on the outer side surface of the gear body (1); the middle part of the gear body (1) is provided with a shaft hole (4) which penetrates up and down, and the inner wall of the shaft hole (4) is provided with a plurality of oil suction holes (5) which are uniformly distributed in an annular shape; one end of the shaft hole (4) is connected with a high boss (6), and the other end is connected with a low boss (7); the high boss (6) and the low boss (7) are both in a circular truncated cone shape; each surface of the gear body (1) is provided with two symmetrically distributed grooves (8), and a heat dissipation shaft hole (9) is communicated between the two grooves (8) on each side; a plurality of water passing grooves (10) which are uniformly distributed in an annular shape are formed in the inner surface of each heat dissipation shaft hole (9); the shaft hole (4) is arranged between the two grooves (8).

2. An end drive gear according to claim 1, wherein: mounting grooves (11) are formed in positions, corresponding to the teeth (2), on the gear body (1), and springs (12) are mounted on two inner side walls of the mounting grooves (11); one end of each spring (12) is provided with a magnet (13), and the springs (12) are fixedly arranged on the side surfaces of the teeth (2) through the magnets (13); two gaskets (14) which are symmetrically arranged are installed at the notch of the installation groove (11), and the inner side surface of each gasket (14) is attached to the outer side surface of the bottom end of each tooth (2).

3. An end drive gear according to claim 1, wherein: chamfers (15) are arranged at two end parts of the shaft hole (4).

4. An end drive gear according to any one of claims 1 to 3, wherein: a mute layer (16) is laid on the surface of the tooth (2); the diameter of the end part, close to the shaft hole (4), of the high boss (6) is larger than that of the end part, far away from the shaft hole (4), of the high boss (6); the diameter of the end part, close to the shaft hole (4), of the low boss (7) is larger than the diameter of the end part, far away from the shaft hole (4), of the low boss (7).