CN215567432U

CN215567432U - Remove festival, drive shaft and car

Info

Publication number: CN215567432U
Application number: CN202121589971.6U
Authority: CN
Inventors: 刘南; 刘利宝
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-01-18
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a movable joint, a driving shaft and an automobile, belonging to the technical field of automobile transmission. A first cavity and a second cavity which are communicated with each other are sequentially arranged in the movable joint shell; the sliding component is used for connecting the shaft rod, is arranged in the first cavity and slides along the length direction of the first cavity; the rolling part is used for connecting the spline shaft, and the rolling part is arranged in the second cavity in a rolling mode so as to adjust the angle between the movable joint shell and the spline shaft. According to the movable joint provided by the utility model, the shaft rod is connected to the sliding component, and the sliding component is positioned in the first cavity and can slide along the length direction of the first cavity so as to adjust the stroke of the shell of the movable joint and the stroke of the shaft rod, so that the requirement of long stroke is met. The integral key shaft is connected on rolling element, and rolling element is located the second cavity, and with the rolling cooperation of second cavity, adjusts the angle of removing festival casing and integral key shaft to satisfy the demand that the wide-angle was adjusted.

Description

Remove festival, drive shaft and car

Technical Field

The utility model belongs to the technical field of automobile transmission, and particularly relates to a movable joint, a driving shaft and an automobile.

Background

Along with the improvement of the requirements of vehicle space arrangement, vehicle ground clearance, vehicle NVH performance and the like, higher requirements are provided for the sliding stroke of the movable joint, the limit swing angle of the movable joint, the common working angle of the movable joint and the like. The motion limit requirement of the high ground clearance and large-stroke suspension jumping structure exceeds the function of the traditional driving shaft moving joint, and cannot be met for vehicles with large-angle and long-stroke requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a movable joint, and aims to solve the problem that the movable joint of a driving shaft is difficult to realize the requirements of large angle and long stroke.

In order to achieve the purpose, the utility model adopts the technical scheme that: there is provided a mobile joint comprising:

the movable joint comprises a movable joint shell, wherein a first cavity and a second cavity which are communicated with each other are sequentially arranged in the movable joint shell;

the sliding component is arranged in the first cavity and slides along the length direction of the first cavity;

and the rolling part is used for connecting the spline shaft, and the rolling part is arranged in the second cavity in a rolling manner so as to adjust the angle between the movable joint shell and the spline shaft.

In a possible implementation manner, one end of the movable joint housing is provided with a matching portion, the matching portion is provided with a communication hole communicated with the first cavity, and the communication hole is used for guiding the shaft rod to penetrate into the first cavity.

In a possible implementation manner, the sliding component includes a three-pin shaft fork and a rolling ball arranged on the three-pin shaft fork, the three-pin shaft fork is arranged in the first cavity and used for connecting the shaft rod, and the rolling ball is in sliding fit with the side wall of the first cavity.

In a possible implementation manner, a first channel is formed in the side wall of the first chamber along the length direction of the side wall, and the rolling ball is slidably arranged in the first channel.

In one possible implementation, the rolling member includes:

the first inner star wheel is arranged in the second cavity and forms a first gap with the side wall of the second cavity; and

the first retainer is arranged in the first gap, a plurality of first spheres are arranged in the circumferential direction of the first retainer, and the first retainer is in rolling fit with the side wall of the second cavity through the plurality of first spheres.

In a possible implementation manner, a plurality of second channels are circumferentially arranged on the side wall of the second chamber, the length direction of each second channel is consistent with the axial direction of the second chamber, and the plurality of first spheres correspondingly roll in the plurality of second channels one to one.

The mobile node provided by the utility model has the beneficial effects that: compared with the prior art, the axostylus axostyle is connected on sliding element, and sliding element is located first cavity, and can follow the length direction slip of first cavity to adjust the stroke of removing festival casing and axostylus axostyle, thereby satisfy the demand of long stroke. The integral key shaft is connected on rolling element, and rolling element is located the second cavity, and with the rolling cooperation of second cavity, adjusts the angle of removing festival casing and integral key shaft to satisfy the demand that the wide-angle was adjusted.

The utility model also provides a driving shaft which comprises a fixed joint, a shaft rod, the movable joint and the spline shaft.

In a possible implementation manner, the fixed joint, the shaft rod, the movable joint and the spline shaft are connected in sequence, and the fixed joint and the shaft rod are rotatably matched.

In a possible implementation manner, the fixed joint and the shaft rod, the shaft rod and the movable joint, and the movable joint and the spline shaft are provided with sheaths.

The driving shaft provided by the utility model has the beneficial effects that: compared with the prior art, the movable joint has the same beneficial effects as the movable joint due to the use of the movable joint, and can meet the requirements of long stroke and large angle adjustment of the driving shaft.

The utility model also provides an automobile comprising the driving shaft.

The automobile provided by the utility model has the beneficial effects that: compared with the prior art, the driving shaft has the same beneficial effects as the driving shaft due to the use of the driving shaft, and can meet the requirements of long stroke and large-angle adjustment of the driving shaft.

Drawings

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

Fig. 1 is a schematic structural diagram of a driving shaft according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic structural diagram of a mobile node according to an embodiment of the present invention.

Description of reference numerals:

100. a movable joint housing; 110. a first chamber; 111. a first channel; 120. a second chamber; 121. a second channel; 130. a fitting portion; 131. a communicating hole; 140. a three-pin shaft yoke; 151. a first inner star wheel; 152. a first holder; 153. a first sphere;

200. a fixed joint housing; 201. a second inner star wheel; 202. a second holder; 203. a second sphere; 210. a connecting portion;

300. a shaft lever;

400. a spline shaft.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 3, a mobile node according to the present invention will now be described. A mobile joint includes a mobile joint housing 100, a sliding member, and a rolling member.

A first chamber 110 and a second chamber 120 which are communicated with each other are sequentially arranged in the movable joint shell 100; the sliding component is used for connecting the shaft rod 300, is arranged in the first chamber 110 and slides along the length direction of the first chamber 110; the rolling member is used to connect the spline shaft 400, and the rolling member is rolled in the second chamber 120 to adjust the angle of the moving joint housing 100 and the spline shaft 400.

Compared with the prior art, the moving joint provided by the utility model has the advantages that the shaft rod 300 is connected to the sliding part, the sliding part is positioned in the first chamber 110 and can slide along the length direction of the first chamber 110, so that the stroke of the moving joint shell 100 and the stroke of the shaft rod 300 are adjusted, and the requirement of long stroke is met. The spline shaft 400 is connected to a rolling member, the rolling member is located in the second chamber 120 and is in rolling fit with the second chamber 120, and the angle between the moving joint housing 100 and the spline shaft 400 is adjusted, so that the requirement of large-angle adjustment is met.

The movable joint provided by the utility model can meet the requirements of large angle and long stroke. The sliding of the driving shaft at an angle of 0 degree can be realized, the function of long sliding stroke can be realized for the conventional movable joint, and meanwhile, the increase of the sliding stroke can be realized by lengthening the length of the first chamber 110 in the movable joint shell 100 according to requirements. Meanwhile, the problem of low-speed yaw high-speed jitter caused by large arrangement angle of the driving shaft in conventional arrangement is solved, and the NVH performance of the whole vehicle is improved.

Referring to fig. 3, the first chamber 110 is a cylindrical chamber, the second chamber 120 is a flared chamber, and an inner diameter of a side far away from the first chamber 110 is greater than an inner diameter of a side near the first chamber 110, specifically, an inner sidewall of the second chamber 120 is a concave arc structure, and can roll along the inner sidewall thereof in cooperation with a rolling member without coming off, the first chamber 110 and the second chamber 120 are communicated with each other, and the first chamber 110 has a certain length, and can provide a sufficient sliding distance.

The fitting portion 130 is a cylindrical structure and is integrally formed at one side of the movable joint housing 100, and a communication hole 131 inside the fitting portion 130 communicates with the first chamber 110. One end of the shaft 300 is inserted into the first chamber 110 by being guided by the communication hole 131, and is connected to the sliding member.

Referring to fig. 2 and 3, the sliding member is composed of a three-pin shaft yoke 140 and a rolling ball, the rolling ball is mounted on the three-pin shaft yoke 140, a spline is arranged in the middle of the three-pin shaft yoke 140 to connect with one end of the shaft rod 300, the rolling ball is abutted against the first channel 111 on the side wall of the first chamber 110, and the first channel 111 is opened along the length direction of the first chamber 110, so that the rolling ball can roll along the length direction of the first chamber 110, and the shaft rod 300 can slide relative to the moving joint.

Referring to fig. 2 and 3, the rolling member is composed of a first internal star 151, a first cage 152, and a plurality of first balls 153. The sidewall of the second chamber 120 has a plurality of second trenches 121, the length direction of the second trenches 121 is consistent with the axial direction of the second chamber 120, and the second trenches are arc-shaped trenches following the sidewall of the second chamber 120. First, the first inner star 151 is located in the second chamber 120, the middle portion of the first inner star is provided with a spline to connect with the spline shaft 400, an annular first gap is formed between the first inner star 151 and the sidewall of the second chamber 120, and the first holder 152 is in an annular structure and located in the gap.

Specifically, a plurality of first balls 153 are mounted on the first holder 152 in the circumferential direction, and the inner side of the first balls is in rolling engagement with the outer wall of the first inner star 151, and the outer side of the first balls is in rolling engagement with the second grooves 121 on the side wall of the second chamber 120. Thereby causing spline shaft 400 to roll relative to second chamber 120 to rotate through a certain angle. Compared with the conventional movable joint, the movable swing angle is increased by 1 time, can reach 45 degrees or even 50 degrees, realizes the function of large swing angle, is easy to realize the process, and can meet the requirement of large angle.

The utility model also provides a driving shaft which comprises a fixed joint, a shaft rod 300, the movable joint and the spline shaft 400.

Referring to fig. 1 and 2, the connection portion 210 of one side of the fixed link is a threaded rod, which can be connected to the hub end of the vehicle, and the structure of the other side is the same as the structure of the second chamber 120 and the rolling member of the movable link.

Specifically, the shape of the inner cavity of the fixed joint housing 200 is the same as that of the second cavity 120, and a channel such as the second channel 121 may be formed on the circumferential side wall thereof to cooperate with the plurality of second balls 203 mounted on the second holder 202, so that the second internal star wheel 201 drives the shaft rod 300 connected thereto to rotate by a certain angle. Thereby achieving further adjustment of the drive shaft angle.

In addition, the fixed joint and the movable joint are partially identical in structure, and the same parts can be used, such as an internal star wheel, a retainer and a ball. The types of parts are reduced, the production cost is reduced, and the production efficiency is improved.

Preferably, sheaths are sleeved outside the fixed joint and the shaft rod 300, the shaft rod 300 and the movable joint and the spline shaft 400, and the sheaths can effectively protect the positions of the three connecting joints through the fixation of the clamps.

The utility model further provides an automobile comprising the driving shaft.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A mobile joint, comprising:

the movable joint comprises a movable joint shell (100), wherein a first chamber (110) and a second chamber (120) which are communicated with each other are sequentially arranged in the movable joint shell (100);

a sliding member for connecting the shaft (300), the sliding member being disposed in the first chamber (110) and sliding along a length direction of the first chamber (110);

and the rolling part is used for connecting a spline shaft (400), and is arranged in the second chamber (120) in a rolling mode so as to adjust the angle between the moving joint shell (100) and the spline shaft (400).

2. A moving joint according to claim 1, wherein a fitting portion (130) is provided at one end of the moving joint housing (100), the fitting portion (130) is provided with a communication hole (131) communicating with the first chamber (110), and the communication hole (131) is used for guiding the shaft rod (300) to penetrate into the first chamber (110).

3. A mobile joint according to claim 1, wherein the sliding means comprises a three-pin yoke (140) and a ball provided on the three-pin yoke (140), the three-pin yoke (140) being provided in the first chamber (110) for connection to the shaft (300), the ball being in sliding engagement with a side wall of the first chamber (110).

4. A mobile joint according to claim 3, wherein the side wall of the first chamber (110) is provided with a first channel (111) along the length direction thereof, and the ball is slidably disposed in the first channel (111).

5. A mobile joint as claimed in claim 1, wherein said rolling elements comprise:

the first internal star wheel (151) is arranged in the second chamber (120) and forms a first gap with the side wall of the second chamber (120); and

the first retainer (152) is arranged in the first gap, a plurality of first balls (153) are arranged on the periphery of the first retainer (152), and the first retainer (152) is in rolling fit with the side wall of the second chamber (120) through the plurality of first balls (153).

6. A mobile joint according to claim 5, wherein the side wall of the second chamber (120) is circumferentially provided with a plurality of second channels (121), the length direction of the second channels (121) is consistent with the axial direction of the second chamber (120), and a plurality of the first spheres (153) are correspondingly rolled in the plurality of second channels (121).

7. A drive shaft, characterized by comprising a fixed joint, a shaft (300), a mobile joint according to any of claims 1-6 and a splined shaft (400).

8. A drive shaft according to claim 7, wherein said fixed joint, said shaft (300), said movable joint and said spline shaft (400) are connected in series, and said fixed joint and said shaft (300) are rotatably engaged.

9. A drive shaft according to claim 7, characterized in that the fixed joint and the shaft (300), the shaft (300) and the mobile joint, and the mobile joint and the spline shaft (400) are provided with sheaths.

10. A motor vehicle, characterized by comprising a drive shaft according to any one of claims 7-9.