CN216241914U

CN216241914U - Cross universal joint mechanism

Info

Publication number: CN216241914U
Application number: CN202122853604.9U
Authority: CN
Inventors: 何德意
Original assignee: Quanzhou Wanchao Automobile Parts Co ltd
Current assignee: Quanzhou Wanchao Automobile Parts Co ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2022-04-08
Anticipated expiration: 2031-11-19

Abstract

The utility model relates to a cross universal joint mechanism which comprises a cross shaft, wherein the cross shaft is provided with four cylindrical parts, each cylindrical part is respectively and rotatably sleeved with a bearing, the bearing is of a cover body structure, a screw hole is formed in the cylindrical part at the position of an axis, the bearing is provided with an insertion hole corresponding to the screw hole, the screw hole is in threaded connection with a bolt, and the bolt penetrates through the insertion hole. The utility model relates to the field of a cross universal joint, a cross shaft is detachably connected with a bearing, so that the maintenance cost is saved, the middle part of the bearing is fixedly connected through a bolt, even if the side wall of the bearing is subjected to a larger acting force, the bolt plays a supporting role at the center of the bearing, the bearing is prevented from being stressed unevenly when the bearing is subjected to the larger acting force, the stress of the bearing is reduced, the bearing and the cross shaft are prevented from being worn, deformed and even damaged, and the technical problems that the cross universal joint is stressed unevenly, is easy to wear and even damage and is inconvenient to maintain are solved.

Description

Cross universal joint mechanism

Technical Field

The utility model relates to the field of cross universal joints, in particular to a cross universal joint mechanism.

Background

The universal joint is a part for realizing variable angle power transmission, is used for changing the position of the transmission axis direction, and is a joint part of a universal transmission device of a driving system. The universal joint is combined with a transmission shaft and is called a universal joint transmission device. The existing universal joint is usually composed of a cross shaft, needle bearings are arranged at four end portions of the cross shaft, usually, the needle bearings are connected with the cross shaft in an undetachable mode, the bearings are stressed unevenly due to the action force in different directions, the needle bearings and the cross shaft are prone to being worn, deformed and even damaged, the damaged needle bearings are inconvenient to maintain, the whole universal joint needs to be replaced, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above problems, the present invention provides a universal joint cross mechanism. The universal joint solves the technical problems that a cross universal joint is uneven in stress, easy to wear and even damage and inconvenient to maintain.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the cross universal joint mechanism comprises a cross shaft, wherein the cross shaft is provided with four cylindrical parts, each cylindrical part is respectively and rotatably sleeved with a bearing, the bearing is of a cover body structure, a screw hole is formed in the cylindrical part and located at the position of an axis, a jack corresponding to the screw hole is formed in the bearing, the screw hole is in threaded connection with a bolt, and the bolt penetrates through the jack.

Further:

the end part of the cylindrical part is provided with at least one elongated slot, two ends of the elongated slot respectively extend to the measuring edge of the cylindrical part, and the elongated slot passes through the screw hole.

And a rubber ring is arranged at the end part of the opening in the bearing.

The bearing is a needle bearing.

The transmission shaft is characterized by further comprising a connecting seat and two transmission shafts which are respectively and rotatably arranged on the connecting seat, each transmission shaft is respectively connected with the connecting seat through one cross shaft, four connecting holes are formed in the connecting seat, two mounting seats are symmetrically arranged at the end portions of the transmission shafts, mounting holes are formed in the two mounting seats, two bearings are respectively fixed in the two mounting holes, and the other two bearings are respectively fixed in the two connecting holes.

The aperture of the mounting hole is not smaller than that of the cylindrical part, and the aperture of the connecting hole is not smaller than that of the cylindrical part.

By adopting the technical scheme, the utility model has the beneficial effects that:

the universal joint mechanism is detachably connected with the bearing, when the universal joint mechanism needs maintenance, the damaged part can be detached and replaced, the maintenance cost is saved, the middle part of the bearing is fixedly connected through the bolt, even if the side wall of the bearing is subjected to a larger acting force, the bolt plays a supporting role in the center of the bearing, the bearing is prevented from being stressed unevenly when the bearing is subjected to the larger acting force, the stress of the bearing is reduced, and the bearing and the universal joint mechanism are prevented from being worn, deformed and even damaged; furthermore, the long groove has the function of placing lubricating oil. Furthermore, the rubber ring has the functions of buffering and reducing abrasion; furthermore, during installation, the cross shaft can be placed in the connecting seat and the two mounting seats, the four bearings are respectively driven into the two mounting holes and the two connecting holes and sleeved on the cylindrical part of the cross shaft, the bolt penetrates through the jack and is in threaded connection with the screw hole, and the bearings expand slightly, so that the bearings are firmly fixed in the mounting holes and the connecting holes; when the bearing is disassembled, the bolt is disassembled, and the bearing is recovered, so that the bearing is convenient to disassemble and is simple and practical.

Drawings

FIG. 1 is a schematic structural view of a cross-shaped gimbal;

FIG. 2 is a schematic view of a bearing construction;

FIG. 3 is a schematic connection diagram of the cross universal joint, the connecting base and the transmission shaft;

FIG. 4 is a schematic view of the structure of the other state of FIG. 3;

FIG. 5 is a schematic view of the connecting socket;

fig. 6 is a schematic structural view of the propeller shaft.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 6, the present embodiment provides a cross universal joint mechanism, including a cross 1, the cross 1 is provided with four cylindrical portions 10, each cylindrical portion 10 is respectively rotatably sleeved with a bearing 2, the bearing 2 is a cover structure, a screw hole 11 is provided at an axis on the cylindrical portion 10, the bearing 2 is provided with an insertion hole 21 corresponding to the screw hole 11, the screw hole 11 is in threaded connection with a bolt 3, and the bolt 3 passes through the insertion hole 21. Two long grooves 101 are arranged at the end part of the cylindrical part 10, two ends of each long groove 101 respectively extend to the measuring edge of the cylindrical part 10, and the long grooves 101 pass through the screw holes 11. The end part of the opening in the bearing 2 is provided with a rubber ring 4.

Still include connecting seat 5, two transmission shafts 6 of rotationally locating connecting seat 5 respectively, every transmission shaft 6 is connected with connecting seat 5 through a cross 1 respectively, is equipped with four connecting holes 50 on the connecting

seat

5, and 6 tip of transmission shaft are equipped with two mount pads 61 symmetrically, are equipped with mounting hole 60 on two mount pads 61, and wherein two bearings 2 are fixed in two mounting holes 60 respectively, and two other bearings 2 are fixed in two connecting holes 50 respectively. The diameter of the mounting hole 60 is not smaller than that of the cylindrical portion 10, and the diameter of the coupling hole 50 is not smaller than that of the cylindrical portion 10.

In fig. 1, two of the spiders 1 are not sleeved with the bearings 2, and the other two spiders 1 are sleeved with the bearings 2; in fig. 6, the diameter of each part of the transmission shaft is labeled, and other values can be set according to the situation; in fig. 5, the aperture of the connection hole 50 is 41mm, but may have other values.

The bearing 2 is a needle bearing, and may be other bearings, which are well known components and will not be described herein.

The working mode of the utility model is as follows:

the cross universal joint is mainly used for connecting a transmission shaft 6, so that the transmission shaft 6 can be rotated on a connecting seat 5, when the cross universal joint is installed, a cross shaft 1 is placed in the connecting seat 5 and two installation seats 61, four bearings 2 are respectively driven into the two installation holes 60 and two connecting holes 50 and sleeved on a cylindrical part 10 of the cross shaft 1, a bolt 3 penetrates through an insertion hole 21 and is connected with a screw hole 11 in a threaded manner, and the bearings 2 are slightly expanded, so that the bearings 2 are firmly fixed in the installation holes 60 and the connecting holes 50; when the bearing is disassembled, the bolt 3 is disassembled, and the bearing 2 is recovered, so that the bearing 2 is convenient to disassemble; the cross shaft 1 is detachably connected with the bearing 2, and the damaged part is detached and replaced, so that the maintenance cost is saved. The middle part of the bearing 2 is fixedly connected through the bolt 3, even if the side wall of the bearing 2 receives large acting force, the bolt 3 plays a role in supporting the center of the bearing 2, the bearing 2 is prevented from being stressed unevenly when receiving the large acting force, the stress of the bearing 2 is reduced, the abrasion, deformation and even damage of the bearing 2 and the cross shaft 1 are prevented, and the bearing is simple and practical.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a cross universal joint mechanism, includes the cross, the cross is equipped with four columniform cylindricality portions, and a bearing, its characterized in that are established to every cylindricality portion rotationally the cover respectively: the bearing is of a cover body structure, a screw hole is formed in the position, located on the axis, of the cylindrical portion, an insertion hole corresponding to the screw hole is formed in the bearing, the screw hole is in threaded connection with a bolt, and the bolt penetrates through the insertion hole.

2. A cross gimbal mechanism as claimed in claim 1, wherein: the end part of the cylindrical part is provided with at least one elongated slot, two ends of the elongated slot respectively extend to the measuring edge of the cylindrical part, and the elongated slot passes through the screw hole.

3. A cross gimbal mechanism as claimed in claim 1, wherein: and a rubber ring is arranged at the end part of the opening in the bearing.

4. A cross gimbal mechanism as claimed in claim 1, wherein: the bearing is a needle bearing.

5. A cross gimbal mechanism as claimed in any one of claims 1 to 4, wherein: the transmission shaft is characterized by further comprising a connecting seat and two transmission shafts which are respectively and rotatably arranged on the connecting seat, each transmission shaft is respectively connected with the connecting seat through one cross shaft, four connecting holes are formed in the connecting seat, two mounting seats are symmetrically arranged at the end portions of the transmission shafts, mounting holes are formed in the two mounting seats, two bearings are respectively fixed in the two mounting holes, and the other two bearings are respectively fixed in the two connecting holes.

6. A cross gimbal mechanism as claimed in claim 5, wherein: the aperture of the mounting hole is not smaller than that of the cylindrical part, and the aperture of the connecting hole is not smaller than that of the cylindrical part.