CN217814621U

CN217814621U - Cross axle type universal coupling suitable for various load working conditions

Info

Publication number: CN217814621U
Application number: CN202222122073.0U
Authority: CN
Inventors: 来鑫芽
Original assignee: Hangzhou Jingtong Steering Transmission Auto Parts Co ltd
Current assignee: Hangzhou Jingtong Steering Transmission Auto Parts Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-15
Anticipated expiration: 2032-08-11

Abstract

The utility model discloses a cross axle type universal joint who is fit for various load operating modes, including first shaft coupling, one side of first shaft coupling is rotated through the cross axle and is connected with the second shaft coupling, the opposite side fixedly connected with spline shaft sleeve of first shaft coupling, spline shaft sleeve's inner wall sliding connection has the integral key shaft, the one end fixedly connected with installation axle of keeping away from spline shaft sleeve of integral key shaft, the intercommunicating pore has been seted up to integral key shaft and the inside of installation axle, the oil compensating hole has been seted up on the surface of installation axle, the utility model relates to a mechanical transmission technical field. This universal joint pin formula universal joint who is fit for various load operating modes, through the cooperation between installation cover, sealing ring and the installation axle, form sealedly between installation axle and the sealing ring, make and form the lubricating oil film between integral key shaft and the spline shaft cover, reduce the wearing and tearing of integral key shaft and spline shaft cover greatly, reduce the shake and the vibration of shaft coupling, improve the life of shaft coupling.

Description

Cross axle type universal coupling suitable for various load working conditions

Technical Field

The utility model relates to a mechanical transmission technical field specifically is a cross axle type universal joint who is fit for various load operating modes.

Background

The cross shaft type universal coupling is a common universal coupling, has the characteristics of large deviation angle, high transmission torque and the like, is widely applied to machine equipment with difficulty in centering two shafts, and is used for absorbing and reducing fluctuation of output torque of a driving mechanism, reducing torsional vibration stress of a shaft section and further reducing damage risks to the machine equipment. When the cross-axle type universal coupling is used, one end of the cross-axle type universal coupling is connected with a driving shaft, and the other end of the cross-axle type universal coupling is connected with a driven shaft through a corresponding connecting piece.

When in use, the cross shaft type universal coupler usually rotates at high speed under the condition of a folded angle, and the joint of the spline shaft and the spline shaft sleeve in the middle of the cross shaft type universal coupler continuously stretches and creeps while transmitting larger torque. The spline shaft and the spline shaft sleeve are difficult to lubricate and easy to wear, so that the clearance is increased, the coaxiality of the spline shaft and the spline shaft sleeve in the middle is increased due to the increase of the clearance, the shaft coupler shakes and vibrates, and the shaft coupler and a bearing supporting the transmission of the shaft coupler are damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a cross axle type universal joint who is fit for various load operating modes has solved lubricated comparatively difficulty between integral key shaft and the spline shaft sleeve, wearing and tearing easily very much to lead to the clearance bigger and bigger, the increase in clearance can lead to the axiality grow of middle integral key shaft and spline shaft sleeve, leads to the shake and the vibration of shaft coupling, finally leads to the shaft coupling and supports the problem of its driven bearing damage.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a cross axle type universal coupling who is fit for various load operating modes, includes first shaft coupling, one side of first shaft coupling is rotated through the cross axle and is connected with the second shaft coupling, the opposite side fixedly connected with spline shaft sleeve of first shaft coupling, spline shaft sleeve's inner wall sliding connection has the integral key shaft, the one end fixedly connected with installation axle that keeps away from spline shaft sleeve of integral key shaft, the intercommunicating pore has been seted up to integral key shaft and the inside of installation axle, the mend oil hole has been seted up on the surface of installation axle, mend oil hole and intercommunicating pore and be linked together, be provided with sealing mechanism between mend oil hole and the intercommunicating pore, spline shaft sleeve's one end just is located the fixed surface of installation axle and is connected with the surperficial sliding connection of installation axle, the one end fixedly connected with sealing ring of installation cover, the inner circle of sealing ring and the surperficial sliding connection of installation axle.

Preferably, the sealing mechanism comprises a mounting cavity arranged in the mounting shaft, the mounting cavity is communicated with the communicating hole, and the inner wall of the mounting cavity is connected with the sealing cylinder in a sliding manner.

Preferably, one end of the sealing cylinder is fixedly connected with a sealing cover, and one side, far away from the sealing cylinder, of the sealing cover is in contact with an outlet of the oil supplementing hole.

Preferably, one side of the sealing cover and the inner part of the sealing barrel are fixedly connected with a return spring, and one end, far away from the sealing cover, of the return spring is fixedly connected with the inner wall of the mounting cavity.

Preferably, a balance hole is formed on the surface of the sealing cylinder in a penetrating manner.

Preferably, the surface of the mounting shaft is provided with an oil distribution hole, and the oil distribution hole penetrates through the mounting shaft and is communicated with the communication hole.

Advantageous effects

The utility model provides a cross axle type universal joint who is fit for various load operating modes. Compared with the prior art, the method has the following beneficial effects:

(1) The universal joint pin type universal coupling suitable for various load working conditions is characterized in that a second coupling joint is connected to one side of a first coupling through rotation of a cross shaft, a spline shaft sleeve is fixedly connected to the other side of the first coupling, a spline shaft is connected to the inner wall of the spline shaft sleeve in a sliding mode, an installation shaft is fixedly connected to one end, far away from the spline shaft sleeve, of the spline shaft, a communication hole is formed in the inner portion of the spline shaft and the installation shaft, an oil supplementing hole is formed in the surface of the installation shaft and communicated with the communication hole, a sealing mechanism is arranged between the oil supplementing hole and the communication hole, an installation sleeve is fixedly connected to one end of the spline shaft and located on the surface of the installation shaft, the inner wall of the installation sleeve is connected with the surface of the installation shaft in a sliding mode, a sealing ring is formed between the installation shaft and the sealing ring through matching of the installation sleeve, the sealing ring and the installation shaft, a lubricating oil film can be formed between the spline shaft and the spline shaft sleeve, abrasion of the spline shaft and the spline shaft sleeve is greatly reduced, shaking and vibration of the coupling are reduced, and the service life of the coupling is prolonged.

(2) This be fit for the shaft type universal joint of cross of various load operating modes, including seting up the installation cavity in installation axle inside through sealing mechanism, the installation cavity is linked together with the intercommunicating pore, the inner wall sliding connection of installation cavity has sealed section of thick bamboo, the sealed lid of one end fixedly connected with of sealed section of thick bamboo, the sealed lid is kept away from one side of sealed section of thick bamboo and is contacted with the export of mending the oil hole, the inside fixedly connected with reset spring that one side of sealed lid just is located sealed section of thick bamboo, reset spring keeps away from the one end of sealed lid and the inner wall fixed connection of installation cavity, the surface of sealed section of thick bamboo runs through and has seted up the balancing hole, setting through sealing mechanism, both conveniently toward the downthehole oiling lubricating oil of intercommunicating pore, conveniently separate intercommunicating pore and mending the oil hole again, avoid the lubricating oil in the intercommunicating pore to leak.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a perspective view of the spline housing of the present invention;

fig. 4 is a perspective view of the spline shaft of the present invention.

In the figure: the structure comprises a first shaft coupling 1, a cross shaft 2, a second shaft coupling 3, a spline shaft sleeve 4, a sealing mechanism 5, a mounting cavity 51, a sealing barrel 52, a sealing cover 53, a return spring 54, a balance hole 55, a spline shaft 6, a mounting shaft 7, a communication hole 8, an oil supplementing hole 9, a mounting sleeve 10, a sealing ring 11 and an oil distributing hole 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a cross-axle type universal coupling suitable for various load working conditions comprises a first coupling 1, one side of the first coupling 1 is rotatably connected with a second coupling 3 through a cross axle 2, the other side of the first coupling 1 is fixedly connected with a spline shaft sleeve 4, the inner wall of the spline shaft sleeve 4 is slidably connected with a spline shaft 6, one end of the spline shaft 6, which is far away from the spline shaft sleeve 4, is fixedly connected with a mounting shaft 7, communication holes 8 are formed in the spline shaft 6 and the mounting shaft 7, an oil supplementing hole 9 is formed in the surface of the mounting shaft 7, the oil supplementing hole 9 is communicated with the communication holes 8, an oil distributing hole 12 is formed in the surface of the mounting shaft 7, the oil distributing hole 12 penetrates through the mounting shaft 7 and is communicated with the communication holes 8, a sealing mechanism 5 is arranged between the oil supplementing hole 9 and the communication holes 8, the sealing mechanism 5 comprises a mounting cavity 51 formed in the mounting shaft 7, the mounting cavity 51 is communicated with the communicating hole 8, the inner wall of the mounting cavity 51 is slidably connected with a sealing barrel 52, one end of the sealing barrel 52 is fixedly connected with a sealing cover 53, one side of the sealing cover 53, far away from the sealing barrel 52, contacts with an outlet of the oil supplementing hole 9, one side of the sealing cover 53 is located in the sealing barrel 52 and is fixedly connected with a return spring 54, the return spring 54 is in a compression state, one end of the return spring 54, far away from the sealing cover 53, is fixedly connected with the inner wall of the mounting cavity 51, the surface of the sealing barrel 52 is penetrated through and provided with a balance hole 55, one end of the spline shaft sleeve 4 is located in the surface of the mounting shaft 7 and is fixedly connected with the mounting sleeve 10, the inner wall of the mounting sleeve 10 is slidably connected with the surface of the mounting shaft 7, one end of the mounting sleeve 10 is fixedly connected with a sealing ring 11, and the inner ring of the sealing ring 11 is slidably connected with the surface of the mounting shaft 7.

The first shaft coupling 1 is fixedly connected with the output end of a driving mechanism, the mounting shaft 7 is fixedly connected with the input end of a driven piece, the output end of the driving mechanism is fixedly connected, the driving mechanism drives the first shaft coupling 1 to grab together when rotating, the first shaft coupling 1 rotates to drive the second shaft coupling 3 to rotate through the cross shaft 2, the second shaft coupling 3 rotates to drive the spline shaft 6 to rotate together through the spline shaft sleeve 4, and further drives the driven piece to rotate, when lubricating oil needs to be added to the spline shaft 6 and the spline shaft sleeve 4, the positions of the spline shaft sleeve 4 and the spline shaft 6 are adjusted to enable the spline shaft 6 to be completely inserted into the spline shaft sleeve 4, a gun nozzle of an oil filling gun is aligned to the oil filling hole 9 to fill the lubricating oil into the oil filling hole 9, the lubricating oil pushes the sealing cover 53 to move to open the oil filling hole 9, the rest communication holes 8 of the oil filling hole 9 are communicated, the lubricating oil is filled into the communication holes 8, and after the oil is filled, the sealing cover 53 seals the oil filling hole 9 under the action of the reset spring 54.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A universal joint cross coupling suitable for various load conditions, comprising a first coupling (1), characterized in that: one side of the first shaft coupling (1) is rotatably connected with a second shaft coupling (3) through a cross shaft (2), the other side of the first shaft coupling (1) is fixedly connected with a spline shaft sleeve (4), the inner wall of the spline shaft sleeve (4) is slidably connected with a spline shaft (6), one end, far away from the spline shaft sleeve (4), of the spline shaft (6) is fixedly connected with an installation shaft (7), a communicating hole (8) is formed in the spline shaft (6) and the installation shaft (7), an oil supplementing hole (9) is formed in the surface of the installation shaft (7), the oil supplementing hole (9) is communicated with the communicating hole (8), a sealing mechanism (5) is arranged between the oil supplementing hole (9) and the communicating hole (8), one end of the spline shaft sleeve (4) is fixedly connected with an installation sleeve (10) on the surface of the installation shaft (7), the inner wall of the installation sleeve (10) is slidably connected with the surface of the installation shaft (7), one end of the installation sleeve (10) is fixedly connected with a sealing ring (11), and the inner ring of the sealing ring (11) is slidably connected with the surface of the installation shaft (7).

2. The universal joint cross shaft coupling suitable for various load conditions according to claim 1, wherein: sealing mechanism (5) is including offering installation cavity (51) in installation axle (7) inside, installation cavity (51) are linked together with intercommunicating pore (8), the inner wall sliding connection of installation cavity (51) has a sealed section of thick bamboo (52).

3. A universal joint cross coupling adapted for various load conditions according to claim 2, wherein: one end of the sealing cylinder (52) is fixedly connected with a sealing cover (53), and one side, far away from the sealing cylinder (52), of the sealing cover (53) is in contact with an outlet of the oil supplementing hole (9).

4. A universal joint cross type coupling according to claim 3, wherein: one side of the sealing cover (53) is fixedly connected with a return spring (54) inside the sealing barrel (52), and one end, far away from the sealing cover (53), of the return spring (54) is fixedly connected with the inner wall of the mounting cavity (51).

5. A cross type universal coupling suitable for various load conditions according to claim 4, wherein: the surface of the sealing cylinder (52) is provided with a balance hole (55) in a penetrating way.

6. A universal joint cross coupling adapted for various load conditions according to claim 1, wherein: the surface of the mounting shaft (7) is provided with an oil distribution hole (12), and the oil distribution hole (12) penetrates through the mounting shaft (7) and is communicated with the communicating hole (8).