CN218818053U

CN218818053U - Speed reducer for new energy automobile

Info

Publication number: CN218818053U
Application number: CN202222980419.0U
Authority: CN
Inventors: 肖艳; 康军波; 朱红涛; 李德龙; 吴天林
Original assignee: Wuhu Wanliyang Transmission Co ltd
Current assignee: Wuhu Wanliyang Transmission Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-04-07
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a reduction gear for new energy automobile, including housing assembly with set up in inside just being used for leading lubricating oil to the oil guiding and lubricating device of bearing room of housing assembly, the indoor bearing that sets up of bearing. The speed reducer for the new energy automobile is additionally provided with the oil guiding and lubricating device, so that the lubricating effect of the speed reducer can be effectively improved, and the oil guiding efficiency of the speed reducer is improved; meanwhile, the lubrication verification period is shortened, and the design difficulty of the shell of the speed reducer can be reduced.

Description

Speed reducer for new energy automobile

Technical Field

The utility model belongs to the technical field of the reduction gear, specifically speaking, the utility model relates to a reduction gear for new energy automobile.

Background

A typical speed reducer for a pure electric new energy automobile comprises a shell, shaft teeth, a bearing and related accessories. The speed reducer transmits power through gear engagement, fixes the transmission ratio and plays a role in reducing speed and increasing torque. The power generated by the motor is transmitted to the speed reducer, and the power is output to the wheels through the speed reducer.

The traditional speed reducer mainly adopts a splash lubrication mode, but because the internal structure of the speed reducer is complex, some parts have lubrication dead zones due to the self structure and arrangement limitation, and the passive splash lubrication mode cannot provide sufficient lubricating oil for gears and bearings which are distributed far away from the end of the speed reducer.

The oil blocking rib of the integrated type is cast in the shell body, the lubricating effect of the speed reducer is improved to a certain extent, the oil collecting port of the oil blocking rib of the integrated type is limited by the structure and the die-casting process, so that the lubricating transmission path is overlong, lubricating oil in a partial bearing chamber is supplied slowly, the oil guiding efficiency is low, and the reasonable utilization of the space of the speed reducer is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a reduction gear for new energy automobile, the purpose improves the lubricated effect of reduction gear.

In order to realize the purpose, the utility model discloses the technical scheme who takes does: the speed reducer for the new energy automobile comprises a shell assembly and an oil guide and lubrication device, wherein the oil guide and lubrication device is arranged in the shell assembly and used for guiding lubricating oil to a bearing chamber, and a bearing is arranged in the bearing chamber.

Lead oily lubricating arrangement including the oil feed tank with the oil feed tank be connected and be arranged in with the lubricating oil guide of oil feed tank to the oil groove is led to the bearing room, lead the oil groove and set up a plurality ofly.

The oil guide grooves are two.

Lead oily lubricating arrangement still include with lead the mounting panel that the oil groove is connected, set up first setting element on the mounting panel and set up in second setting element on the oil feed tank.

Two second positioning pieces are arranged.

The shell assembly comprises a first shell and a second shell which are connected, and the oil guide lubricating device is arranged on the first shell.

The speed reducer for the new energy automobile is additionally provided with the oil guiding and lubricating device, so that the lubricating effect of the speed reducer can be effectively improved, and the oil guiding efficiency of the speed reducer is improved; meanwhile, the lubrication verification period is shortened, and the design difficulty of the shell of the speed reducer can be reduced.

Drawings

The description includes the following figures, the contents shown are respectively:

fig. 1 is a sectional view of a reducer for a new energy automobile according to the present invention;

FIG. 2 is a schematic view of the installation position of the oil guiding and lubricating device;

FIG. 3 is a schematic structural diagram of an oil-guiding lubrication device;

FIG. 4 is another schematic diagram of the oil-guiding lubrication device;

FIG. 5 is a schematic diagram of the arrangement of the speed reducer on the new energy automobile;

labeled as: 1. a motor; 2. a speed reducer; 3. a first housing; 4. an input shaft; 5. a mid-shaft assembly; 6. a differential assembly; 7. a second bearing; 8. a first bearing; 9. a fourth bearing; 10. a third bearing; 11. a fifth bearing; 12. a sixth bearing; 13. an input shaft oil seal; 14. a differential oil seal; 15. a first oil guide groove; 16. a second housing; 17. an oil inlet groove; 18. a first positioning member; 19. a second positioning member; 20. mounting a plate; 21. a second oil guide groove; 22. and (7) wheels.

Detailed Description

The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings, for the purpose of helping those skilled in the art to understand more completely, accurately and deeply the conception and technical solution of the present invention, and to facilitate its implementation.

As shown in fig. 1 to 4, the utility model provides a reduction gear for new energy automobile, including casing assembly, input shaft 4, intermediate shaft subassembly 5, differential mechanism assembly 6 with set up inside and be used for leading lubricating oil to the oil guiding lubrication device of bearing room of casing assembly, set up the bearing in the bearing room.

Specifically, as shown in fig. 1, the input shaft 4 is mounted on the housing assembly through the first bearing 8 and the second bearing 7, the intermediate shaft assembly 5 is mounted on the housing assembly through the third bearing 10 and the fourth bearing 9, the differential assembly 6 is mounted on the housing assembly through the fifth bearing 11 and the sixth bearing 12, the intermediate shaft assembly 5 is located between the input shaft 4 and the differential assembly 6, a gear provided on the input shaft 4 is engaged with one gear provided on the intermediate shaft assembly 5, and another gear provided on the intermediate shaft assembly 5 is engaged with a gear provided on the differential assembly 6.

As shown in fig. 1 and 2, the housing assembly includes a first housing 3 and a second housing 16 connected to each other, the first housing 3 and the second housing 16 are disposed opposite to each other, and the oil guide and lubrication device is disposed on the first housing 3. The first housing 3 is provided with two bearing chambers for respectively accommodating the first bearing 8 and the third bearing 10, the oil guiding and lubricating device is used for guiding lubricating oil to the two bearing chambers arranged on the first housing 3, the lubricating oil in the two bearing chambers arranged on the first housing 3 is not easy to enter because the depth of the inner cavity of the first housing 3 is greater than that of the inner cavity of the second housing 16, and the passive splash lubrication mode cannot provide enough lubricating oil for the first bearing 8 and the third bearing 10 which are distributed far away from the differential assembly 6, so the oil guiding and lubricating device is required to be arranged, the oil guiding and lubricating device respectively guides the lubricating oil flowing on the inner wall of the first housing 3 to the bearing chambers where the first bearing 8 and the third bearing 10 are located, and lubricates the first bearing 8 and the third bearing 10.

As shown in fig. 2 to 4, the oil guiding and lubricating device includes an oil inlet groove 17 and a plurality of oil guiding grooves connected to the oil inlet groove 17 for guiding the lubricating oil in the oil inlet groove 17 to the bearing chamber. The oil guide groove is fixedly connected to the oil feed groove 17, and the oil feed groove 17 receives the lubricating oil flowing from the inner wall of the first housing 3. During the operation of the speed reducer, the lubricating oil splashes along with the rotation of the gears of the differential assembly 6, the lubricating oil flows along the inner walls of the first shell 3 and the second shell 16 after encountering the first shell 3 and the second shell 16, the lubricating oil on the first shell 3 enters the oil inlet groove 17, and the lubricating oil is divided by the oil guide groove and is distributed to the bearing chambers on the first shell 3. The bearing chamber provided in the second housing 16 can satisfy the lubrication requirement by splash lubrication.

In the present embodiment, as shown in fig. 2 to 4, two oil guide grooves are provided. Two oil grooves are respectively a first oil groove 15 and a second oil groove 21, the oil outlets of the first oil groove 15 and the second oil groove 21 face the bearing chamber, the first oil groove 15 and the second oil groove 21 are respectively used for guiding the lubricating oil in the oil inlet groove 17 to the bearing chamber where the first bearing 8 and the third bearing 10 are located on the first shell 3, the first oil groove 15 and the second oil groove 21 are located on the same side of the oil inlet groove 17, and oil passages for guiding the lubricating oil to flow are arranged in the oil inlet groove 17, the first oil groove 15 and the second oil groove 21.

As shown in fig. 3 and fig. 4, the oil guiding and lubricating device further includes a mounting plate 20 connected to the oil guiding groove, a first positioning element 18 disposed on the mounting plate 20, and a second positioning element 19 disposed on the oil inlet groove 17, and a mounting hole for the first positioning element 18 and the second positioning element 19 to be inserted is disposed inside the first housing 3. The first positioning member 18 and the second positioning member 19 are inserted into the mounting hole of the first housing 3, so that the oil guide and lubrication device is fixed to the first housing 3.

In the present embodiment, as shown in fig. 3 and 4, two second positioning members 19 are provided, and the two second positioning members 19 are respectively and fixedly provided at two ends of the oil inlet tank 17 in the length direction. The mounting plate 20 is fixedly connected with the first oil guide groove 15 at the oil outlet end of the first oil guide groove 15, the first positioning element 18 is arranged one, and the first positioning element 18 is fixedly connected with the mounting plate 20.

Through setting up the oil lubricating arrangement that leads of above-mentioned structure, can collect the lubricating oil that splashes effectively to distribute the bearing room of reduction gear, realize the initiative lubrication of reduction gear, effectively improve the lubricated effect of reduction gear. This lead oily lubricating arrangement simple structure can effectively utilize reduction gear spatial structure, provides shorter oil distance of leading, improves and leads oily efficiency.

The invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-described manner. Various insubstantial improvements are made by adopting the method conception and the technical proposal of the utility model; or without improvement, the above conception and technical scheme of the utility model can be directly applied to other occasions, all within the protection scope of the utility model.

Claims

1. New energy automobile is with reduction gear, including housing assembly, its characterized in that: the oil guide and lubrication device is arranged in the shell assembly and used for guiding lubricating oil to the bearing chamber, and a bearing is arranged in the bearing chamber;

the shell assembly comprises a first shell and a second shell which are connected, and the oil guide lubricating device is arranged on the first shell;

the oil guide and lubrication device comprises an oil inlet groove and two oil guide grooves which are connected with the oil inlet groove and used for guiding lubricating oil in the oil inlet groove to the bearing chamber, the two oil guide grooves are respectively a first oil guide groove and a second oil guide groove, oil outlets of the first oil guide groove and the second oil guide groove face the bearing chamber, the first oil guide groove and the second oil guide groove are respectively used for guiding the lubricating oil in the oil inlet groove to the bearing chamber where the first bearing and the third bearing are located on the first shell, the first oil guide groove and the second oil guide groove are located on the same side of the oil inlet groove, and oil ducts for guiding the lubricating oil to flow are arranged in the oil inlet groove, the first oil guide groove and the second oil guide groove;

lead oily lubricating arrangement still include with lead the mounting panel that the oil groove is connected, set up first setting element on the mounting panel and set up in second setting element on the oil feed tank, the inside of first casing sets up the mounting hole that lets first setting element and second setting element embedding.

2. The decelerator for a new energy automobile according to claim 1, wherein: two second positioning pieces are arranged.