CN222479272U

CN222479272U - Constant-speed driving shaft ball cage

Info

Publication number: CN222479272U
Application number: CN202421143891.1U
Authority: CN
Inventors: 曹斌腾
Original assignee: Taizhou Fudao Transmission Shaft Co ltd
Current assignee: Taizhou Fudao Transmission Shaft Co ltd
Priority date: 2024-05-23
Filing date: 2024-05-23
Publication date: 2025-02-14
Anticipated expiration: 2034-05-23

Abstract

The utility model relates to the technical field of constant-speed driving shafts, in particular to a constant-speed driving shaft ball cage, wherein in the use process, when the angle of a shaft core deflects, six balls in the inner part correspondingly roll along guide rails arranged on a shaft housing and the shaft core, when the shaft core rotates, the balls can be driven to rotate simultaneously, the balls can also push the shaft housing to rotate to finish transmission, in the transmission process, as the positions of the six balls in the inner part are not changed, the limiting plate is continuously extruded, the limiting plate is continuously reset under the action of spring force, the limiting plate is always clung to a shaft sleeve, the balls in the inner part are prevented from being separated from an original track, the limiting cover is connected to the side end of the shaft housing in a threaded manner, the limiting of the balls is finished, the effect of preventing the balls in the inner part from being separated from the original track from affecting the use is achieved, and the dismounting of the device is finished by unscrewing the limiting cover, so that the effect of being convenient to dismount and easy to maintain and prolonging the service life is achieved.

Description

Constant-speed driving shaft ball cage

Technical Field

The utility model relates to the technical field of constant-speed driving shafts, in particular to a constant-speed driving shaft ball cage.

Background

The constant-speed driving shaft is a mechanism for connecting two shafts with misaligned axes and transmitting the motion of the two shafts at the same angular velocity, is an important component in a vehicle transmission system, and has the function of transmitting the power of an engine from a transmission to driving wheels of an automobile to meet the requirement of the outer end corner of the transmission shaft of the vehicle, so that the power of the engine is stably and reliably transmitted to the wheels. At present, the conventional constant-speed driving shaft ball cage (such as a patent number of CN 202338576U) discloses a constant-speed driving shaft ball cage which comprises an inner star wheel, an outer star wheel and a retainer, wherein the inner star wheel is connected with a first shaft, the inner star wheel is arranged on the outer surface of the inner star wheel in a surrounding mode at equal intervals by taking the axis of the first shaft as the central line, the outer star wheel is connected with a second shaft and sleeved outside the inner star wheel, the inner surface of the outer star wheel is a spherical surface, the spherical surface is provided with circular arc grooves and outer ball tracks with the number being matched with that of the inner ball tracks, the outer ball tracks are arranged on the spherical surface in a surrounding mode at equal intervals by taking the axis of the second shaft as the central line, the surfaces between two adjacent outer ball tracks are provided with oil guide grooves which extend along the axial direction of the second shaft, the length of the oil guide grooves are matched with the working lengths of the inner ball tracks, the steel balls are embedded in the integral ball tracks formed by the inner ball tracks and the outer ball tracks, the retainer is arranged between the inner star wheel and the outer star wheel after being sleeved, the retainer is used for retaining the embedded and the ball is arranged between the ball tracks, the spherical ball tracks are arranged at the embedded positions, the spherical surface of the retainer is spherical surface of the ball surface and the ball track is matched with the inner ball surface. However, in the implementation process of the technical scheme, the technical problems are found that the existing ball cage has the problems that if the deflection angle of two axes is overlarge during turning, the internal steel balls can be separated from the track, so that the transmission process is blocked and the like.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a constant-speed driving shaft ball cage, which solves the technical problems that if the two axes deflect too much during turning, the internal steel balls can be separated from the track, and the situation such as jamming and the like occurs in the transmission process of the conventional ball cage.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

The constant-speed driving shaft ball cage comprises a shaft shell, wherein a limit cover is arranged at the side end of the shaft shell in a threaded manner, the limit cover comprises a threaded cover, six springs are fixedly arranged at the side ends of the threaded cover, a limit plate is fixedly arranged at the side ends of the springs, six sliding grooves are uniformly formed in the inner side wall of the shaft shell, a shaft core is rotatably arranged in the shaft shell, six balls are rotatably arranged on the outer side wall of the shaft core, six sliding grooves are uniformly formed in the outer side wall of the shaft core, a shaft sleeve is slidably arranged on the outer side wall of the shaft core, and a dust cover is fixedly arranged at the side end of the threaded cover.

Preferably, the driven shaft is slidably arranged at the side end of the shaft housing, and the shaft housing and the driven shaft are fixed through an inner hexagon bolt.

Preferably, the side end of the shaft core is slidably provided with a transmission shaft, wherein the shaft core and the transmission shaft are fixed through an inner hexagon bolt.

(III) beneficial effect one, in the use, when the axle core angle takes place to deflect, six inside balls take place corresponding roll along axle housing, the guide rail of seting up on the axle core, when the axle core rotates, can drive the ball and produce simultaneously and rotate, the ball also can promote the axle housing rotation to accomplish the transmission, in the driven in-process, because six inside ball positions do not change, can constantly produce the extrusion to the limiting plate, the limiting plate can constantly reset under the effect of spring elastic force, make the limiting plate hug closely the axle sleeve always, avoid inside ball to break away from original track, through with spacing lid threaded connection at axle housing side, accomplish the spacing to the ball, the effect of avoiding inside ball to break away from original track influence use has been reached.

2. The dust cover of screw cap side can adapt to the change of transmission shaft angle, prevents that outside dust from entering into inside the axle housing, and the leakage of the inside lubricating oil of positive axle housing simultaneously unscrews spacing lid, can spill the junction of transmission shaft and axle core, unscrews fixed hexagon socket head cap screw and can make transmission shaft, driven shaft break away from, takes off axle housing, axle core to maintain inside, through unscrewing spacing lid etc. the dismouting to the device has been accomplished, has reached the dismouting of being convenient for and has been favorable to maintaining increase of service life's effect.

Drawings

The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings.

FIG. 1 is a diagram of the axle housing structure of the present utility model;

FIG. 2 is a cross-sectional structural view of the present utility model;

FIG. 3 is an exploded view of the structure of the present utility model;

Fig. 4 is a cross-sectional view of the axle housing of the present utility model. The illustration is 1, the axle housing, 2, the limit cover, 21, the screw cover, 22, the dust cover, 23, the spring, 24, the limit plate, 3, the ball, 4, the axle core, 5, the axle sleeve, 6, the transmission shaft, 7, the driven shaft.

Detailed Description

According to the constant-speed driving shaft ball cage, the technical problems that if the deflection angle of two axes is too large during turning, internal steel balls possibly break away from a track, clamping and other conditions occur in the transmission process are effectively solved, in the use process, when the angle of a shaft core deflects, six internal balls correspondingly roll along a shaft shell and a guide rail arranged on the shaft core, when the shaft core rotates, the balls can be driven to simultaneously rotate, the balls can also push the shaft shell to rotate to complete transmission, in the transmission process, the six internal ball positions are not changed, the limiting plates can be continuously extruded under the action of spring force, the limiting plates are constantly reset under the action of spring force, the limiting plates are always clung to a shaft sleeve, the internal balls are prevented from being separated from the original track, the limiting cover is in threaded connection with the side end of the shaft shell, the limiting of the balls is completed, the effect of preventing the internal balls from being separated from the original track, the dust cover at the side end can adapt to the change of the angle of the transmission shaft, the external dust is prevented from entering the inside the shaft shell, meanwhile, the position of the positive shaft shell and the negative shaft shell are simultaneously changed, the limit cover is unscrewed, the shaft cover is unscrewed, the position of the shaft cover is easily is unscrewed, the transmission shaft is detached, the service life of the transmission shaft is prolonged, and the service life of the transmission shaft is easy to be maintained, and the transmission device is easy to be maintained.

The technical solution in the embodiment of the present application is to effectively solve the technical problem that if the angle of deflection of two axes is too large during turning, the internal steel ball may be separated from the track, so that the transmission process is blocked, and the overall thinking is as follows:

Aiming at the problems in the prior art, the utility model provides a constant-speed driving shaft ball cage which comprises a shaft shell 1, wherein a limit cover 2 is arranged at the side end of the shaft shell 1 in a threaded manner, the limit cover 2 comprises a threaded cover 21, six springs 23 are fixedly arranged at the side ends of the threaded cover 21, a limit plate 24 is fixedly arranged at the side ends of the springs 23, and six sliding grooves are uniformly formed in the inner side wall of the shaft shell 1. The shaft housing 1 is internally provided with a shaft core 4 in a rotating way, the outer side wall of the shaft core 4 is provided with six balls 3 in a rotating way, the outer side wall of the shaft core 4 is uniformly provided with six sliding grooves, the outer side wall of the shaft core 4 is provided with a shaft sleeve 5 in a sliding way, and the side end of a threaded cover 21 is fixedly provided with a dust cover 22. The side end of the shaft housing 1 is slidably provided with a driven shaft 7, the shaft housing 1 and the driven shaft 7 are fixed through socket head cap bolts, the side end of the shaft core 4 is slidably provided with a transmission shaft 6, and the shaft core 4 and the transmission shaft 6 are fixed through socket head cap bolts.

Working principle:

First step, in the use, when the axle core 4 angle takes place to deflect, six inside balls 3 take place corresponding roll along axle housing 1, the guide rail of seting up on the axle core 4, when axle core 4 rotates, can drive ball 3 and produce simultaneously and rotate, ball 3 also can promote the rotation of axle housing 1 and accomplish the transmission, in the driven in-process, because six inside balls 3 position is unchanged, can constantly produce the extrusion to limiting plate 24, limiting plate 24 can constantly reset under the effect of spring 23 elasticity, make limiting plate 24 hug closely axle sleeve 5 always, avoid inside ball 3 to break away from original track, through with spacing lid 2 threaded connection at axle housing 1 side, accomplish the spacing to ball 3, the effect of avoiding inside ball 3 to break away from original track influence use has been reached. Second step, the dirt proof boot 22 of screw cap 21 side can adapt to the change of transmission shaft 6 angle, prevent outside dust to enter into inside axle housing 1, simultaneously reverse the inside leakage of lubricating oil of axle housing 1, unscrew spacing lid 2, can spill the junction of transmission shaft 6 and axle core 4, unscrew fixed hexagon socket head cap screw can make transmission shaft 6, driven shaft 7 break away from, take off axle housing 1, axle core 4 is maintained inside, through unscrewing spacing lid 2 etc. the dismouting of accomplishing the device has reached the effect that the dismouting of being convenient for does benefit to maintenance increase life.

Finally, it should be noted that the above-mentioned examples are given for the purpose of illustration only and are not intended to limit the utility model to the particular embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present utility model.

Claims

1. A constant velocity drive shaft cage, comprising a shaft housing (1), characterized in that a limit cover (2) is threadedly mounted on the side end of the shaft housing (1), the limit cover (2) comprises a threaded cover (21), six springs (23) are fixedly mounted on the side end of the threaded cover (21), and a limit plate (24) is fixedly mounted on the side end of the spring (23);

The inner side wall of the shaft housing (1) is evenly provided with six sliding grooves.

2. A constant velocity drive shaft cage according to claim 1, characterized in that a shaft core (4) is rotatably mounted inside the shaft housing (1), and six balls (3) are rotatably mounted on the outer side wall of the shaft core (4);

The outer wall of the shaft core (4) is evenly provided with six sliding grooves.

3. A constant velocity drive shaft cage as described in claim 2, characterized in that a shaft sleeve (5) is slidably mounted on the outer side wall of the shaft core (4).

4. A constant velocity drive shaft ball cage as described in claim 1, characterized in that a dust cover (22) is fixedly installed on the side end of the threaded cover (21).

5. A constant velocity drive shaft cage as claimed in claim 1, characterized in that a driven shaft (7) is slidably mounted on the side end of the shaft housing (1);

The shaft housing (1) and the driven shaft (7) are fixed by means of hexagon socket bolts.

6. A constant velocity drive shaft cage as claimed in claim 2, characterized in that a transmission shaft (6) is slidably mounted on the side end of the shaft core (4);

The shaft core (4) and the transmission shaft (6) are fixed by means of hexagon socket bolts.