CN210440480U

CN210440480U - Ball cage type double-pressure-angle constant velocity universal joint

Info

Publication number: CN210440480U
Application number: CN201920670688.2U
Authority: CN
Inventors: 金建成; 刘兴华
Original assignee: Zhejiang Qunzhen Technology Co ltd
Current assignee: Zhejiang Qunzhen Technology Co ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-05-01
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a ball cage type double-pressure angle constant velocity universal joint, which comprises a bell-shaped shell, wherein the inside of the bell-shaped shell is provided with an outer ball track, the rear surface of the bell-shaped shell is fixedly provided with an output shaft, the rear end of the bell-shaped shell is provided with a first spline, the front end of the outer surface of the bell-shaped shell is provided with a groove, the inside of the bell-shaped shell is provided with a star-shaped sleeve, the outside of the star-shaped sleeve is provided with a steel ball, the inside of the star-shaped sleeve is provided with a buffer component, the middle position of the star-shaped sleeve is provided with a spline groove, the outside of the input shaft is provided with a seal component, the outside of the steel ball is provided with a retainer, the utility model can avoid dust entering by being provided with the seal component, the seal component is convenient to disassemble, the maintenance is more convenient, the utility model can reduce the vibration and, the heat productivity and the abrasion loss under the high-speed operation state are reduced, and the service life is prolonged.

Description

Ball cage type double-pressure-angle constant velocity universal joint

Technical Field

The utility model relates to a rzeppa universal joint technical field specifically is a rzeppa double pressure angle constant velocity universal joint.

Background

The ball cage type constant velocity universal joint is a universal joint which utilizes a plurality of steel balls to be respectively arranged in inner and outer star wheel grooves connected with two shafts so as to realize the synchronization of the rotating speeds of the two shafts. The ball cage type universal joint mainly comprises four parts, namely a shell (commonly called a bell-shaped shell or an outer wheel), force transmission steel balls, a star wheel (commonly called a star sleeve or an inner wheel) and a ball cage retainer, wherein the ball cage type universal joint can still transmit torque under the condition that the maximum included angle of two shafts reaches 47 degrees, and 6 steel balls completely transmit force no matter how the movement direction is, so that compared with a ball fork type universal joint, the ball cage type universal joint has the advantages of strong bearing capacity, compact structure and convenience in assembly and disassembly, and is more and more widely applied.

However, the conventional constant velocity universal joint is liable to generate vibration and noise during use, and the conventional constant velocity universal joint is not good in sealing property and liable to be interfered by dust, and after the boot is mounted, inconvenience is brought to the replacement of lubricating oil and maintenance. Accordingly, one skilled in the art provides a rzeppa dual pressure angle constant velocity joint to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ball cage formula dual pressure angle constant velocity universal joint to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a ball cage formula dual pressure angle constant velocity cardan joint, includes bell-shaped shell, outer lane has been seted up to bell-shaped shell's inside, and the fixed surface of the back of bell-shaped shell installs the output shaft, the rear end of bell-shaped shell is provided with first spline, and the surface front end of bell-shaped shell sets up flutedly, the internally mounted of bell-shaped shell has the star cover, the outside of star cover is provided with the steel ball, and the inside fixedly connected with input shaft of star cover, the inside of star cover is provided with buffer assembly, and the intermediate position department of star cover has seted up the spline groove, the rear end of input shaft is provided with the second spline, and the outside of input shaft is provided with seal assembly, the externally mounted of steel ball has the holder.

As a further aspect of the present invention: the sealing assembly comprises a sealing sleeve, a movable cover, a sealing cover, a through hole, a fixed button and a telescopic spring, the through hole is formed in the rear end of the sealing cover, the movable cover is fixedly connected to the front end of the sealing cover, the fixed button is arranged inside the through hole, the telescopic spring is fixedly mounted on the pen feeding surface of the fixed button, and the sealing sleeve is fixedly mounted on the front surface of the movable cover.

As a further aspect of the present invention: the buffering subassembly includes interior lane, telescopic link and buffering spring, the lower fixed surface of interior lane installs the bradyseism spring, the internally mounted of bradyseism spring has the telescopic link.

As a further aspect of the present invention: the quantity of steel balls is 6, and the quantity of outer lane is the same with the steel ball.

As a further aspect of the present invention: the number of the grooves is 4, and the grooves are uniformly arranged at the front end of the outer surface of the bell-shaped shell.

As a further aspect of the present invention: the sealing sleeve and the movable cover are both rubber components, and the sealing cover is polyethylene component.

As a further aspect of the present invention: the number of the telescopic rods and the number of the cushioning springs are 3, the number of the inner ball tracks is 6, and the upper surface of each inner ball track is made of high-manganese wear-resistant steel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the sealing component is arranged, so that the constant velocity universal joint can be protected, the influence on use caused by dust entering is avoided, the sealing component is convenient to disassemble, and the maintenance of the constant velocity universal joint is more convenient;

2. the utility model discloses a be provided with the buffering subassembly, can reduce vibration and the noise that produces in the use of constant velocity universal joint, reduce calorific capacity and wearing and tearing volume under the high-speed running state, increased life.

Drawings

Fig. 1 is a schematic structural view of a rzeppa double pressure angle constant velocity joint;

FIG. 2 is a schematic structural view of a seal assembly in a rzeppa double pressure angle constant velocity joint;

FIG. 3 is a schematic structural view of a star boot in a rzeppa double pressure angle constant velocity joint;

FIG. 4 is an enlarged view of A in FIG. 2;

fig. 5 is an enlarged view of B in fig. 3.

In the figure: 1. a first spline; 2. an output shaft; 3. a bell-shaped housing; 4. a holder; 5. a star-shaped sleeve; 6. an input shaft; 7. a second spline; 8. a seal assembly; 801. sealing sleeves; 802. a movable cover; 803. a sealing cover; 804. a through hole; 805. a fixed button; 806. a tension spring; 9. steel balls; 10. an outer lane; 11. a buffer assembly; 1101. an inner lane; 1102. a telescopic rod; 1103. a cushioning spring; 12. a groove; 13. spline grooves.

Detailed Description

Referring to fig. 1 to 5, in an embodiment of the present invention, a ball cage type double pressure angle constant velocity universal joint includes a bell housing 3, an outer lane 10 is opened inside the bell housing 3, an output shaft 2 is fixedly installed on a rear surface of the bell housing 3, a first spline 1 is disposed at a rear end of the bell housing 3, a groove 12 is opened at a front end of an outer surface of the bell housing 3, the number of the groove 12 is 4, the groove 12 is uniformly installed at the front end of the outer surface of the bell housing 3, a star sleeve 5 is installed inside the bell housing 3, steel balls 9 are disposed outside the star sleeve 5, a retainer is installed outside the steel balls 9, the number of the steel balls 9 is 6, the outer lane 10 and the number of the steel balls 9 are the same, the steel balls 9 are located between the outer lane 10 and the inner lane 1101, and are maintained on a plane by the retainer 4, and an input shaft 6 is fixedly connected inside the star sleeve 5, and the middle position of the star-shaped sleeve 5 is provided with a spline groove 13, the rear end of the input shaft 6 is provided with a second spline 7, and the star-shaped sleeve 5 is connected with the second spline 7 at the rear end of the input shaft 6 through the inner spline groove 13.

In fig. 2: the sealing assembly 8 is arranged outside the input shaft 6, the sealing assembly 8 comprises a sealing sleeve 801, a movable cover 802, a sealing cover 803, a through hole 804, a fixed button 805 and a telescopic spring 806, the through hole 804 is formed in the rear end of the sealing cover 803, the movable cover 802 is fixedly connected to the front end of the sealing cover 803, the fixed button 805 is arranged inside the through hole 804, the telescopic spring 806 is fixedly installed on the lower pen surface of the fixed button 805, the sealing sleeve 801 is fixedly installed on the front surface of the movable cover 802, the sealing sleeve 801 and the movable cover 802 are both members made of rubber materials, the movable cover 802 does not affect the moving angle of the constant velocity universal joint, the sealing cover 803 is a member made of polyethylene, and the sealing assembly 8 is arranged, so that the constant velocity universal joint can be protected, dust is prevented from entering and affecting use, the sealing assembly 8 is convenient to detach, and maintenance of the constant.

In fig. 3: the inside of star cover 5 is provided with buffering subassembly 11, buffering subassembly 11 includes interior lane 1101, telescopic link 1102 and bradyseism spring 1103, the lower fixed surface of interior lane 1101 installs bradyseism spring 1103, the internally mounted of bradyseism spring 1103 has telescopic link 1102, the quantity of telescopic link 1102 and bradyseism spring 1103 is 3, the quantity of interior lane 1101 is 6, and the upper surface of interior lane 1101 is the wear-resisting steel material of high manganese, through being provided with buffering subassembly 11, can reduce the vibration and the noise that produce in the use of constant velocity universal joint, reduce calorific capacity and the wearing and tearing volume under the high-speed running state, service life has been increased.

The utility model discloses a theory of operation is: when in use, torque is transmitted into the star sleeve 5 through the input shaft 6 to drive the star sleeve 5 to rotate, at the moment, the steel ball 9 rotates at a high speed between the outer ball track 10 and the inner ball track 1101, the buffer component 11 on the lower surface of the inner ball track 1101 buffers, the damping spring 1103 and the telescopic rod 1102 generate action at 3 degrees, the joint degree of the steel ball 9 and the outer ball track 10 can be kept, the vibration is reduced, the noise reduction effect is achieved, the vibration and the noise generated in the use of the constant velocity universal joint can be reduced through the arrangement of the buffer component 11, the heat productivity and the abrasion loss in the high-speed operation state are reduced, the service life is prolonged, the steel ball 9 is kept on the same plane through the retainer 4, the bell-shaped shell 3 is driven to rotate, finally, the torque is transmitted out through the output shaft 2 on the rear surface of the bell-shaped shell 3, the sealing cover 803 and the movable cover 802 are fixed at the, movable cover 802 is the rubber material, can not influence the use angle of constant velocity universal joint, seal cover 801 and input shaft 6 closely laminate, sealed cover 803 and movable cover 802 make the inside and outside isolation of constant velocity universal joint, avoid the entering of dust, when needs maintain the constant velocity universal joint when adding lubricating oil, press fixed button 805, expanding spring 806 compression, fixed button 805 leaves through-hole 804, detachable cover sealing 803 down this moment, thereby maintain, through being provided with seal assembly 8, can protect the constant velocity universal joint, avoid the dust to get into and cause the influence to the use, seal assembly 8 is convenient for dismantle, the maintenance that makes the constant velocity universal joint is more convenient.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A ball cage type double-pressure-angle constant velocity universal joint comprises a bell-shaped shell (3), and is characterized in that an outer lane (10) is arranged inside the bell-shaped shell (3), an output shaft (2) is fixedly arranged on the rear surface of the bell-shaped shell (3), a first spline (1) is arranged at the rear end of the bell-shaped shell (3), a groove (12) is formed in the front end of the outer surface of the bell-shaped shell (3), a star-shaped sleeve (5) is arranged inside the bell-shaped shell (3), steel balls (9) are arranged outside the star-shaped sleeve (5), an input shaft (6) is fixedly connected inside the star-shaped sleeve (5), a buffer component (11) is arranged inside the star-shaped sleeve (5), a spline groove (13) is formed in the middle position of the star-shaped sleeve (5), a second spline (7) is arranged at the rear end of the input shaft (6), and a sealing component (8) is arranged outside the input shaft (6), and a retainer (4) is arranged outside the steel ball (9).

2. The rzeppa dual-pressure-angle constant velocity universal joint according to claim 1, wherein the sealing assembly (8) comprises a sealing boot (801), a movable boot (802), a sealing boot (803), a through hole (804), a fixed button (805) and a telescopic spring (806), the through hole (804) is formed in the rear end of the sealing boot (803), the movable boot (802) is fixedly connected to the front end of the sealing boot (803), the fixed button (805) is arranged in the through hole (804), the telescopic spring (806) is fixedly mounted on the pen dropping surface of the fixed button (805), and the sealing boot (801) is fixedly mounted on the front surface of the movable boot (802).

3. The rzeppa dual-pressure-angle constant velocity joint according to claim 1, wherein the damping assembly (11) comprises an inner raceway (1101), a telescopic rod (1102) and a damping spring (1103), the damping spring (1103) is fixedly mounted on the lower surface of the inner raceway (1101), and the telescopic rod (1102) is mounted inside the damping spring (1103).

4. Ball cage type double pressure angle constant velocity joint according to claim 1, characterized in that the number of steel balls (9) is 6, the number of outer raceways (10) being the same as the number of steel balls (9).

5. A birfield type double pressure angle constant velocity joint according to claim 1, wherein the number of said grooves (12) is 6, and the grooves (12) are uniformly installed in the front end of the outer surface of the bell housing (3).

6. A birfield double pressure angle constant velocity joint according to claim 2, wherein the sealing boot (801) and the movable boot (802) are both rubber members, and the sealing boot (803) is a polyethylene member.

7. The rzeppa double-pressure-angle constant velocity joint according to claim 3, wherein the number of the telescopic rods (1102) and the number of the damping springs (1103) are 3, the number of the inner fairways (1101) is 6, and the upper surface of the inner fairway (1101) is made of high manganese wear-resistant steel.