阅读说明：本技术 可传递扭矩的万向流体传送接头及其连接结构 (Universal fluid transfer joint capable of transmitting torque and connecting structure thereof ) 是由 张景胜 胡英 孙丰迎 解瑞江 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种可传递扭矩的万向流体传送接头及其连接结构,所述接头包括十字轴和两个分别相对交错设置的叉轴,所述叉轴的两个叉面分别与所述十字轴中一组相对设置且同轴的两个轴转动连接,且所述十字轴在与所述叉轴连接处均设有环形槽；所述叉轴上分别设有不互相连通的叉轴进油管路和叉轴回油管路,且所述叉轴进油管路和叉轴回油管路分别与对应的环形槽连通,所述十字轴其中相临且轴线垂直的两个轴内分别加工有相互连通的十字轴进油管路,另外相临且轴线垂直的两个轴内分别加工有相互连通的十字轴回油管路,且十字轴进油管路和十字轴回油管路分别与其相对应的环形槽连通。本发明可以实现不同轴的两个同步转动部件之间的流体输入和输出。(The invention discloses a universal fluid transmission joint capable of transmitting torque and a connection structure thereof, wherein the joint comprises a cross shaft and two fork shafts which are oppositely staggered, two fork surfaces of the fork shafts are respectively rotationally connected with a group of two shafts which are oppositely arranged and coaxial in the cross shaft, and annular grooves are formed in the connection positions of the cross shaft and the fork shafts; the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are respectively communicated with corresponding annular grooves, cross shaft oil inlet pipelines which are mutually communicated are respectively processed in two adjacent shafts of the cross shaft, the two shafts of which the axes are vertical to each other, cross shaft oil return pipelines which are mutually communicated are respectively processed in the two adjacent shafts of which the axes are vertical to each other, and the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are respectively communicated with the corresponding annular grooves. The invention can realize the fluid input and output between two synchronous rotating parts with different shafts.)

1. A torque transferable universal fluid transfer joint characterized by: the joint comprises a cross shaft and two fork shafts which are arranged oppositely in a staggered mode, wherein two fork surfaces of one fork shaft are respectively and rotatably connected with one group of two shafts which are arranged oppositely of the cross shaft, two fork surfaces of the other fork shaft are respectively and rotatably connected with the other group of two shafts which are arranged oppositely of the cross shaft, and annular grooves are formed in the joints of the cross shaft and the fork shafts;

the cross shafts are respectively provided with a cross shaft oil inlet pipeline and a cross shaft oil return pipeline which are not mutually communicated, the two adjacent cross shafts of the cross shafts are respectively provided with a cross shaft oil inlet pipeline which is mutually communicated, and the other two adjacent cross shafts are respectively provided with a cross shaft oil return pipeline which is mutually communicated; the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are respectively communicated with the annular groove on the shaft where the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are located;

one end of the fork shaft oil inlet pipeline is communicated with the corresponding annular groove, and the other end of the fork shaft oil inlet pipeline is communicated with the outside;

one end of the fork shaft oil return pipeline is communicated with the corresponding annular groove, and the other end of the fork shaft oil return pipeline is communicated with the outside.

2. The torque transferable universal fluid transfer joint of claim 1, wherein: and limiting snap rings for preventing the fork shafts from falling off are respectively arranged on the cross shafts.

3. The torque transferable universal fluid transfer joint of claim 1, wherein: and sealing rings I are arranged on two sides of the annular groove.

4. A connecting structure characterized in that: the joint comprises a direct shaft, two ends of the direct shaft are respectively connected with the joint of any one of claims 1 to 3, and two fork shafts at one end of each of the two joints, which is far away from the direct shaft, are respectively connected with an oil supply end and an oil using end;

an oil inlet pipeline and an oil return pipeline of the direct shaft are respectively arranged in the direct shaft;

one end of the direct shaft oil inlet pipeline is communicated with one end, communicated with the outside, of one of the fork shaft oil inlet pipelines in one of the joints, and one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the joint is communicated with an oil outlet of the oil supply end; the other end of the direct shaft oil inlet pipeline is communicated with one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the other joint, and one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the joint is communicated with an oil inlet of the oil using end;

one end of the direct shaft oil return pipeline is communicated with one end, communicated with the outside, of one of the fork shaft oil return pipelines in one of the joints, and one end, communicated with the outside, of the other fork shaft oil return pipeline in the joint is communicated with an oil return port of the oil supply end; the other end of the direct shaft oil return pipeline is communicated with one end, communicated with the outside, of the other fork shaft oil return pipeline in the other joint, and one end, communicated with the outside, of the other fork shaft oil return pipeline in the joint is communicated with an oil return port of the oil using end.

5. A connecting structure according to claim 4, wherein: including a plurality of direct axles, and a plurality of pass through between the direct axle connect the series connection in proper order, and set up the tip of two direct axles at both ends and pass through respectively connect with the oil feed end with the end connection of using oil.

6. A connecting structure according to claim 4, wherein: the fork shaft is formed by splicing two half fork shafts, the fork shaft oil inlet pipeline is arranged in one of the half fork shafts, the fork shaft oil return pipeline is arranged in the other half fork shaft, and the two half fork shafts are fixedly connected through a connecting accessory.

7. A connecting structure according to claim 6, wherein: a convex rectangular surface is processed on the outer diameter of one end of the half fork shaft far away from the cross shaft, the two rectangular surfaces of the two half fork shafts are spliced into a square, one end of the half fork shaft far away from the cross shaft is sleeved with a pair of half flanges, and the half flanges are provided with rectangular grooves matched with the rectangular surfaces, the two half flanges are spliced into a circular flange, direct shaft flanges matched with the flanges are respectively fixed at two ends of the direct shaft, the rectangular surface is positioned and installed in the rectangular groove by a positioning pin, the half flanges are fixedly connected with the direct shaft flanges through bolts, and the rectangular surface is pressed in the rectangular groove, equipment end flanges matched with the flanges are fixed on the oil supply end and the oil using end, and the equipment end flanges are fixedly connected with the flanges through bolts.

8. A connecting structure according to claim 7, wherein: and sealing rings II are arranged between the flange and the direct shaft flange and between the flange and the equipment end flange.

Technical Field

The invention relates to a connecting joint, in particular to a universal fluid transmission joint capable of transmitting torque and a connecting structure thereof.

Background

At present, to realize fluid transmission between two parts which are different in shaft and have synchronous rotation motion, a universal joint shaft is required to transmit torque, and a hose is bound on the joint shaft. The hose has the defects of short service life, easy leakage, incapability of balancing actuation and difficulty in increasing the rotating speed because the hose is bent forwards and backwards once per revolution.

Disclosure of Invention

In accordance with the above-mentioned technical problems, a universal fluid transfer joint capable of transmitting torque and a connection structure thereof are provided. The technical means adopted by the invention are as follows:

the universal fluid transmission joint capable of transmitting torque comprises a cross shaft and two fork shafts which are arranged oppositely in a staggered mode respectively, wherein two fork surfaces of one fork shaft are rotatably connected with two shafts which are arranged oppositely in one group of the cross shaft respectively, two fork surfaces of the other fork shaft are rotatably connected with two shafts which are arranged oppositely in the other group of the cross shaft respectively, and annular grooves are formed in the joints of the cross shaft and the fork shafts respectively;

the cross shafts are respectively provided with a cross shaft oil inlet pipeline and a cross shaft oil return pipeline which are not mutually communicated, the two adjacent cross shafts of the cross shafts are respectively provided with a cross shaft oil inlet pipeline which is mutually communicated, and the other two adjacent cross shafts are respectively provided with a cross shaft oil return pipeline which is mutually communicated; the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are respectively communicated with the annular groove on the shaft where the cross shaft oil inlet pipeline and the cross shaft oil return pipeline are located;

one end of the fork shaft oil inlet pipeline is communicated with the corresponding annular groove, and the other end of the fork shaft oil inlet pipeline is communicated with the outside;

one end of the fork shaft oil return pipeline is communicated with the corresponding annular groove, and the other end of the fork shaft oil return pipeline is communicated with the outside.

And limiting snap rings for preventing the fork shafts from falling off are respectively arranged on the cross shafts.

And sealing rings I are arranged on two sides of the annular groove.

A connecting structure comprises a direct shaft, wherein two ends of the direct shaft are respectively connected with an oil supply end and an oil using end through the joints mentioned in the above;

one end, far away from the cross shaft, of each of the two fork shafts in one joint is connected with the end face of the direct shaft and the oil supply end or the oil using end respectively;

an oil inlet pipeline and an oil return pipeline of the direct shaft are respectively arranged in the direct shaft;

one end of the direct shaft oil inlet pipeline is communicated with one end, communicated with the outside, of one of the fork shaft oil inlet pipelines in one of the joints, and one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the joint is communicated with an oil outlet of the oil supply end; the other end of the direct shaft oil inlet pipeline is communicated with one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the other joint, and one end, communicated with the outside, of the other fork shaft oil inlet pipeline in the joint is communicated with an oil inlet of the oil using end;

one end of the direct shaft oil return pipeline is communicated with one end, communicated with the outside, of one of the fork shaft oil return pipelines in one of the joints, and one end, communicated with the outside, of the other fork shaft oil return pipeline in the joint is communicated with an oil return port of the oil supply end; the other end of the direct shaft oil return pipeline is communicated with one end, communicated with the outside, of the other fork shaft oil return pipeline in the other joint, and one end, communicated with the outside, of the other fork shaft oil return pipeline in the joint is communicated with an oil return port of the oil using end.

Furthermore, according to the use condition, a plurality of direct shafts can be adopted, the direct shafts are sequentially connected in series through the joints, and the end parts of the two direct shafts arranged at the two ends are respectively connected with the oil supply end and the oil utilization end through the joints.

Furthermore, the fork shaft is formed by splicing two half fork shafts, the fork shaft oil inlet pipeline is arranged in one of the half fork shafts, the fork shaft oil return pipeline is arranged in the other half fork shaft, and the two half fork shafts are fixedly connected through a connecting accessory.

Furthermore, a convex rectangular surface is processed on the outer diameter of one end of the half fork shaft away from the cross shaft, and the two rectangular surfaces of the two half fork shafts are spliced into a square, one end of each half fork shaft far away from the cross shaft is sleeved with a pair of half flanges, and the half flanges are provided with rectangular grooves matched with the rectangular surfaces, the two half flanges are spliced into a circular flange, direct shaft flanges matched with the flanges are respectively fixed at two ends of the direct shaft, the rectangular surface is positioned and installed in the rectangular groove by a positioning pin, the half flanges are fixedly connected with the direct shaft flanges through bolts, and the rectangular surface is pressed in the rectangular groove, equipment end flanges matched with the flanges are fixed on the oil supply end and the oil using end, and the equipment end flanges are fixedly connected with the flanges through bolts.

And further, sealing rings II are arranged between the flange and the direct shaft flange and between the flange and the equipment end flange.

The fork shaft in the joint provided by the invention can rotate around the cross shaft at a small angle, and the joint can realize the input and output of fluid between two different shaft parts.

Based on the reason, the invention can be widely popularized in the fields of connecting shafts and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a front view of a universal fluid transfer joint capable of transmitting torque according to embodiments 1 to 5 of the present invention.

Fig. 2 is a perspective view of fig. 1.

Fig. 3 is a sectional view taken along line I-I in fig. 1.

Fig. 4 is a schematic structural view of an oil end and an oil supply end for connecting a universal fluid transfer joint capable of transmitting torque according to embodiment 1 of the present invention.

FIG. 5 is a front view of a connection structure in embodiments 2 to 3 of the present invention.

FIG. 6 is a perspective view of a connecting structure in embodiments 2 to 3 of the present invention.

Fig. 7 is a top perspective view of fig. 5.

Fig. 8 is a sectional view taken along line II-II in fig. 7.

Fig. 9 is a sectional view taken along line III-III in fig. 6.

Fig. 10 is a sectional view taken along line IV-IV in fig. 6.

Fig. 11 is a sectional view taken along line V-V in fig. 6.

Fig. 12 is an enlarged view of a VI portion in fig. 10.

Fig. 13 is a schematic structural view of a connection structure of an oil end for connection and an oil supply end in embodiment 2 of the present invention.

In the figure:

1. a joint;

11. a cross shaft; 111. an annular groove; 112. a cross shaft oil inlet pipeline; 113. a cross-axle oil return line;

12. a fork shaft; 121 fork surfaces; 122. a fork shaft oil inlet pipeline; 123. a fork shaft oil return pipeline; 124. a half fork shaft; 125. connecting accessories; 126. a rectangular surface; 127. a half flange; 128. a direct shaft flange; 129. positioning pins;

13. a limit snap ring;

14. a seal ring I;

2. an oil supply end; 21. an oil outlet of the oil supply end; 22. an oil return port of the oil supply end; 23. an equipment end flange; 24. a seal ring II;

3. carrying out oil end treatment; 31. an oil inlet of the oil end; 32. an oil return port of the oil end;

4. a direct shaft;

41. a direct shaft oil inlet pipeline;

42. a direct axle return line;

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.