CN216045241U

CN216045241U - Improved RV cycloidal speed reducer

Info

Publication number: CN216045241U
Application number: CN202122290782.5U
Authority: CN
Inventors: 张棋
Original assignee: Wuhan Boruifu Intelligent Equipment Co ltd
Current assignee: Wuhan Boruifu Intelligent Equipment Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-15
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an improved RV cycloidal reducer, which relates to the technical field of reducers, and aims at solving the problem that the conventional reducer is easy to damage due to overlarge bearing load, the utility model provides a scheme that the improved RV cycloidal reducer comprises a shell, wherein the middle of the inner side of the shell is rotatably connected with a gear shaft, one end of the gear shaft is fixedly sleeved with a driving gear, the inner side of the shell is rotatably connected with a first crank shaft, and one end of the first crank shaft is fixedly sleeved with a first planetary gear which is in meshed connection with the driving gear. Saving cost and convenient use.

Description

Improved RV cycloidal speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to an improved RV cycloidal speed reducer.

Background

The speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission which are enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, plays a role in matching rotating speed and transmitting torque between the prime mover and the working machine or an actuating mechanism, and is widely applied to modern machinery.

An RV reducer generally uses an angular contact ball bearing, the existing angular contact ball bearing can bear axial force and radial force to transmit torque by rolling through a rolling ball on the inner side of a bearing sleeve, but when the angular contact ball bearing rolls, the bearing load of the angular contact ball bearing is limited, the angular contact ball bearing is easy to damage, and therefore an improved RV cycloidal reducer is needed at present.

SUMMERY OF THE UTILITY MODEL

The improved RV cycloidal speed reducer provided by the utility model solves the problem that the speed reducer is easy to damage due to overlarge bearing load.

In order to achieve the purpose, the utility model adopts the following technical scheme:

improved generation RV cycloid speed reducer, which comprises a housin, the inboard intermediate rotation of casing is connected with the gear shaft, the fixed cover in one end of gear shaft has connect the driving gear, the inboard eccentric position of casing rotates and is connected with first crank axle, the fixed cover in one end of first crank axle has connect the first planetary gear who is connected with the driving gear meshing, the inboard eccentric position of casing rotates and is connected with the second crank axle, the second crank axle becomes the degree with first crank axle, the fixed cover in one end of second crank axle has connect the second planetary gear who is connected with the driving gear meshing, the inboard of casing is provided with first cross roller bearing and second cross roller bearing, first cross roller bearing all cooperates with one side of second cross roller bearing has the seal cover, the inboard and first crank axle, the cooperation of second crank axle of seal cover.

Preferably, one side of the shell is provided with a cover plate matched with the gear shaft, and the edge of the cover plate is provided with a positioning bolt connected with the shell.

Preferably, a bearing sleeve is matched with the inner side of the first cross roller bearing, and the inner side of the bearing sleeve is matched with the first crank shaft and the second crank shaft.

Preferably, the outer side of the gear shaft is sleeved with a limiting sleeve, and the outer side of the limiting sleeve is matched with the first crank shaft and the second crank shaft.

Preferably, the middle of the gear shaft is sleeved with a positioning sleeve, and the lower end of the positioning sleeve is matched with the limiting sleeve.

Preferably, the outside cover of gear shaft is equipped with the top cover that is located the position sleeve upside, the top cover sets up the downside at the driving gear, the outside fixedly connected with connecting plate of casing, install a plurality of locking bolts on the connecting plate.

The utility model has the beneficial effects that:

1. compared with the existing angular contact ball bearing, the bearing can bear larger axial force and radial force by the first crossed roller bearing and the second crossed roller bearing, so that the friction between the roller and the bearing sleeve is reduced, the loss of energy in the transmission process is reduced, the transmission torque is larger, the wear resistance and the impact resistance of the bearing are improved, the integral performance of transmission is improved, when a large turntable is transmitted, the crossed roller bearing does not need to be additionally arranged in front of the RV cycloidal reducer by using the crossed roller bearing, the bearing force can be directly output by the crossed roller bearing arranged in the RV cycloidal reducer, so that the application range of the RV cycloidal reducer is wider, and the application structure is more compact, and the cost is saved.

2. Through setting up first cross roller bearing and second cross roller bearing in the both sides of casing, can make first crank axle and second crank axle rotate more stably, reduce the friction of first crank axle and second crank axle pivoted, reduce energy loss.

Drawings

Fig. 1 is a schematic front sectional view of an improved RV cycloidal reducer according to the present invention;

fig. 2 is a left side view schematically illustrating an improved RV cycloidal reducer according to the present invention;

fig. 3 is a schematic front view of an improved RV cycloidal reducer according to the present invention.

Reference numbers in the figures: 1. a connecting plate; 2. a first crossed roller bearing; 3. a bearing housing; 4. a gear shaft; 5. a limiting sleeve; 6. a positioning sleeve; 7. jacking and sleeving; 8. a first planetary gear; 9. a first crank shaft; 10. a driving gear; 11. a second crank shaft; 12. a second planetary gear; 13. sealing sleeves; 14. a housing; 15. a second crossed roller bearing; 16. locking the bolt; 17. and (7) a cover plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, the improved RV cycloidal reducer comprises a housing 14, a gear shaft 4 is rotatably connected to the middle of the inner side of the housing 14, a driving gear 10 is fixedly sleeved on one end of the gear shaft 4, a first crank shaft 9 is rotatably connected to the inner side of the housing 14, a first planetary gear 8 meshed with the driving gear 10 is fixedly sleeved on one end of the first crank shaft 9, a second crank shaft 11 is rotatably connected to the inner side of the housing 14, the second crank shaft 11 and the first crank shaft 9 form an angle of 180 degrees, a second planetary gear 12 meshed with the driving gear 10 is fixedly sleeved on one end of the second crank shaft 11, a first crossed roller bearing 2 and a second crossed roller bearing 15 are arranged on the inner side of the housing 14, a sealing sleeve 13 is matched on one side of each of the first crossed roller bearing 2 and the second crossed roller bearing 15, and a sealing sleeve 13 is matched on the inner side of each of the sealing sleeve 13 and the first crank shaft 9, The second crankshaft 11 is matched, the second crossed roller bearing 15 is arranged between the shell 14 and the sealing sleeve 13, and the first crossed roller bearing 2 is arranged between the shell 14 and the bearing sleeve 3, compared with the existing angular contact ball bearing, the utility model can bear larger axial force and radial force through the first crossed roller bearing 2 and the second crossed roller bearing 15, so that the friction between the roller and the bearing sleeve is reduced, the loss of energy in the transmission process is reduced, the transmission torque is larger, the wear resistance and impact resistance of the bearing are improved, the integral performance of transmission is improved, through the use of the crossed roller bearing, when a large turntable is transmitted, the crossed roller bearing does not need to be additionally arranged in front of the RV cycloidal reducer, through the crossed roller bearing arranged in the RV cycloidal reducer, the bearing force can be directly output, and the application range of the RV cycloidal reducer is wider, the application structure is more compact, saves cost, and through setting up first cross roller bearing 2 and second cross roller bearing 15 in the both sides of casing 1, can make first crank axle 9 and second crank axle 11 rotate more stably, reduces the friction of first crank axle 9 and second crank axle 11 pivoted, reduces energy loss.

A cover plate 17 matched with the gear shaft 4 is arranged on one side of the shell 14, and a positioning bolt connected with the shell 14 is arranged on the edge of the cover plate 17.

The bearing housing 3 is fitted to the inner side of the first cross roller bearing 2, and the inner side of the bearing housing 3 is fitted to the first crank shaft 9 and the second crank shaft 11.

The outside cover of gear shaft 4 is equipped with stop collar 5, and the outside of stop collar 5 cooperates with first crank axle 9, second crank axle 11.

The middle of the gear shaft 4 is sleeved with a positioning sleeve 6, and the lower end of the positioning sleeve 6 is matched with the limiting sleeve 5.

The outer side cover of gear shaft 4 is equipped with the top cover 7 that is located the upside of position sleeve 6, and top cover 7 sets up the downside at driving gear 10, and the outside fixedly connected with connecting plate 1 of casing 14 installs a plurality of locking bolt 16 on the connecting plate 1.

The working principle is as follows: compared with the existing angular contact ball bearing, the utility model has the advantages that the second crossed roller bearing 15 is arranged between the shell 14 and the sealing sleeve 13, and the first crossed roller bearing 2 is arranged between the shell 14 and the bearing sleeve 3, compared with the existing angular contact ball bearing, the first crossed roller bearing 2 and the second crossed roller bearing 15 can bear larger axial force and radial force, so that the friction between the roller and the bearing sleeve is reduced, the energy loss in the transmission process is reduced, the transmission torque is larger, the wear resistance and the impact resistance of the bearing are improved, the transmission integral performance is improved, by using the crossed roller bearing, when a large turntable is transmitted, the crossed roller bearing does not need to be additionally arranged in front of the RV cycloidal reducer, the crossed roller bearing arranged in the RV cycloidal reducer can directly output bearing force, and the application range of the RV cycloidal reducer is wider, the application structure is more compact, saves cost, and through setting up first cross roller bearing 2 and second cross roller bearing 15 in the both sides of casing 1, can make first crank axle 9 and second crank axle 11 rotate more stably, reduces the friction of first crank axle 9 and second crank axle 11 pivoted, reduces energy loss.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Improved generation RV cycloid speed reducer, including casing (14), its characterized in that, the inboard middle rotation of casing (14) is connected with gear shaft (4), the fixed cover in one end of gear shaft (4) has been connected with driving gear (10), the inboard eccentric position of casing (14) rotates and is connected with first crank axle (9), the fixed cover in one end of first crank axle (9) has been connected with first planetary gear (8) of being connected with driving gear (10) meshing, the inboard eccentric position of casing (14) rotates and is connected with second crank axle (11), second crank axle (11) becomes 180 degrees with first crank axle (9), the fixed cover in one end of second crank axle (11) has been connected with second planetary gear (12) of driving gear (10) meshing, the inboard of casing (14) is provided with first cross roller bearing (2) and second cross roller bearing (15), one side of the first crossed roller bearing (2) and one side of the second crossed roller bearing (15) are both matched with a sealing sleeve (13), and the inner side of the sealing sleeve (13) is matched with the first crank shaft (9) and the second crank shaft (11).

2. The improved RV cycloidal reducer according to claim 1, characterized in that a cover plate (17) matched with the gear shaft (4) is arranged on one side of the shell (14), and a positioning bolt connected with the shell (14) is arranged on the edge of the cover plate (17).

3. The improved RV cycloidal reducer according to claim 1, characterized in that a bearing sleeve (3) is fitted to the inner side of said first crossed roller bearing (2), and the inner side of said bearing sleeve (3) is fitted to a first crank shaft (9) and a second crank shaft (11).

4. The improved RV cycloidal reducer according to claim 1, characterized in that a limiting sleeve (5) is sleeved on the outer side of the gear shaft (4), and the outer side of the limiting sleeve (5) is matched with the first crank shaft (9) and the second crank shaft (11).

5. The improved RV cycloidal reducer according to claim 4, characterized in that a locating sleeve (6) is sleeved in the middle of the gear shaft (4), and the lower end of the locating sleeve (6) is matched with a limiting sleeve (5).

6. The improved RV cycloidal speed reducer according to claim 5, characterized in that the outer side of the gear shaft (4) is sleeved with a top sleeve (7) positioned on the upper side of the positioning sleeve (6), the top sleeve (7) is arranged on the lower side of the driving gear (10), the outer side of the shell (14) is fixedly connected with a connecting plate (1), and a plurality of locking bolts (16) are installed on the connecting plate (1).