CN217582932U

CN217582932U - Rzeppa universal joint and Rzeppa universal coupling

Info

Publication number: CN217582932U
Application number: CN202221749810.3U
Authority: CN
Inventors: 梁为明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-14
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a ball cage universal joint and ball cage universal joint, including the universal joint body, the shell inner wall of universal joint body is provided with the backup pad, is equipped with the cambered surface groove in the backup pad, and the cambered surface is personally submitted to the transmission shaft inner of universal joint body, and this cambered surface matches with cambered surface groove shape, terminal surface and cambered surface groove contact in the transmission shaft, and this structure can improve the bearing capacity to the axis of rotation, guarantees the stability of shaft coupling operation.

Description

Rzeppa universal joint and Rzeppa universal coupling

Technical Field

The utility model relates to the technical field of shaft coupling, concretely relates to rzeppa universal joint and rzeppa universal joint.

Background

The basic structure of the straight channel rzeppa synchronous universal coupling is that, the inner wall of the shell of the universal joint body is provided with a ball head, the inner end surface of a transmission shaft on the universal joint body is in contact with the ball head, the ball head supports the inner end surface of the transmission shaft, when the shell of the universal joint body is rotated, the top end of the ball head can generate the displacement of S length in the up-and-down direction, the transmission shaft is at a fixed position at the moment, the top end of the ball head can generate a large amount of heat by high-speed sliding of the inner end surface of the transmission shaft, and the inner end surface of the transmission shaft can support the ball head to generate up-and-down movement, thereby the universal joint body is enabled to be unstable in operation, and further the operation of the coupling is unstable.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a rzeppa universal joint and rzeppa universal joint to improve the bearing capacity to the axis of rotation, guarantee the stability of shaft coupling operation.

The utility model provides a ball cage universal joint, includes the universal joint body, the shell inner wall of universal joint body is provided with the backup pad, is equipped with the cambered surface groove in the backup pad, and the cambered surface is personally submitted to the transmission shaft inner of universal joint body, and this cambered surface matches with cambered surface groove shape, terminal surface and cambered surface groove contact in the transmission shaft.

Preferably, the inner wall of the cambered surface groove is provided with an oil groove.

A ball cage type universal coupling comprises two ball cage type universal joints, wherein the outer end of a transmission shaft of one universal joint body is connected with the outer end of a transmission shaft of the other universal joint body.

Preferably, the outer ends of the transmission shafts of the two universal joint bodies are connected with the flange plates, and the two flange plates are connected.

Preferably, the two flanges are connected by a plurality of bolts.

Preferably, the outer end of the transmission shaft of one universal joint body is connected with a steel pipe shaft, the outer end of the transmission shaft of the other universal joint body is connected with a spline shaft, the steel pipe shaft is connected with a spline housing, the spline shaft is arranged in the spline housing in a sliding mode, one end, entering the spline housing, of the spline shaft can enter the steel pipe shaft in a sliding mode, and a pressure spring is connected between the spline shaft and the spline housing.

Preferably, the inner wall of the housing of the joint body is coated with grease.

Preferably, a flange cylinder is connected to the housing of the universal joint body.

The beneficial effects of the utility model are embodied in: in the technical scheme, the supporting plate is arranged on the inner wall of the shell of the universal joint body, the cambered surface groove is formed in the supporting plate, the inner end face of the transmission shaft of the universal joint body is arranged to be a cambered surface, the inner end face of the transmission shaft is matched with the cambered surface groove in shape and is in contact with the cambered surface groove, the shell of the universal joint body rotates in the process, the inner end face of the supporting plate and the inner end face of the transmission shaft are in face-to-face contact all the time, the supporting force of the supporting plate on the transmission shaft is stronger, the inner end face of the transmission shaft can not abut against the supporting plate to generate vertical displacement, the universal joint body is enabled to run more stably, and the running stability of a coupler can be guaranteed when the coupler is formed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of a structure of one mode in embodiment 2;

FIG. 2 is a schematic structural view of another embodiment of example 2;

FIG. 3 is a schematic structural view of embodiment 3;

FIG. 4 is a schematic diagram of a prior art configuration;

FIG. 5 is a schematic diagram of another aspect of the prior art;

fig. 6 is an enlarged schematic view of the position C in fig. 5.

In the attached drawing, 1-universal joint body, 2-supporting plate, 3-transmission shaft, 4-steel pipe shaft, 5-spline shaft, 6-spline housing and 7-pressure spring.

Detailed Description

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

The embodiment provides a ball cage universal joint, including universal joint body 1, universal joint body 1's shell inner wall is provided with backup pad 2, is equipped with the cambered surface groove in the

backup pad

2, and 3 the inner ends of transmission shaft of universal joint body 1 are personally submitted the cambered surface, and this cambered surface matches with cambered surface groove shape, and terminal surface and cambered surface groove contact in 3 of transmission shaft.

As shown in fig. 1 to 6, fig. 4 to 6 are schematic structural diagrams of a ball-and-cage type universal coupling in the prior art, each of fig. 1 to 3 includes a ball-and-cage type universal joint in this embodiment, a support plate 2 is disposed on an inner wall of a housing of a universal joint body 1, an arc groove is disposed on the support plate 2, an inner end surface of a transmission shaft 3 of the universal joint body 1 is set to be an arc surface, the inner end surface of the transmission shaft 3 is matched and contacted with the arc groove in shape, so that the support plate 2 and the transmission shaft 3 are in surface-to-surface contact, during rotation of the housing of the universal joint body 1, the support plate 2 is always in surface-to-surface contact with the inner end surface of the transmission shaft 3, the support force of the support plate 2 to the transmission shaft 3 is stronger, and the inner end surface of the transmission shaft 3 cannot abut against the support plate 2 to generate vertical displacement, so that the operation of the universal joint body 1 is more stable, and when the coupling is formed, the stability of the operation of the coupling can be ensured.

In this embodiment, the cambered surface inslot wall is equipped with the oil groove, the shell inner wall of universal joint body 1 scribbles lubricating grease, reduces the frictional force that each part motion produced.

Example 2

The present embodiment is further limited on the basis of embodiment 1, and provides a rzeppa universal coupling in the present embodiment, which comprises two rzeppa universal joints, wherein the outer end of the transmission shaft 3 of one universal joint body 1 is connected with the outer end of the transmission shaft 3 of the other universal joint body 1.

The 3 outer ends of transmission shaft of two universal joint bodies 1 all connect the ring flange in this embodiment, and two ring flanges are connected. In this embodiment, the two flanges are connected by a plurality of bolts. In this embodiment, a flange is connected to the outer shell of the universal joint body 1. The connection of two rzeppa universal joints is realized through two flanges in the embodiment, and the coupling formed by connecting the flanges generally adopts vertical installation and is mainly applied to the technical field of petroleum machinery.

Example 3

The present embodiment is further limited on the basis of embodiment 1, and provides a rzeppa universal joint in the present embodiment, which comprises two rzeppa universal joints, wherein the outer end of the transmission shaft 3 of one universal joint body 1 is connected with the outer end of the transmission shaft 3 of another universal joint body 1.

In this embodiment, the outer end of the transmission shaft 3 of one universal joint body 1 is connected with a steel pipe shaft 4, the outer end of the transmission shaft 3 of the other universal joint body 1 is connected with a spline shaft 5, the steel pipe shaft 4 is connected with a spline housing 6, the spline shaft 5 is slidably arranged in the spline housing 6, one end of the spline shaft 5 entering the spline housing 6 can slide into the steel pipe shaft 4, and a pressure spring 7 is connected between the spline shaft 5 and the spline housing 6. In this embodiment, a flange is connected to the outer shell of the universal joint body 1.

The telescopic connection of two rzeppa universal joints is realized through the cooperation of the steel pipe shaft 4, the spline shaft 5, the spline housing 6 and the pressure spring 7 in the embodiment, and the general horizontal installation of the shaft coupling formed by the connection mode is mainly applied to the technical field of metallurgy and iron.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a ball cage universal joint, its characterized in that, includes universal joint body (1), the shell inner wall of universal joint body (1) is provided with backup pad (2), is equipped with the cambered surface groove on backup pad (2), and the cambered surface is personally submitted to transmission shaft (3) the inner of universal joint body (1), and this cambered surface matches with cambered surface groove shape, terminal surface and cambered surface groove contact in transmission shaft (3).

2. A rzeppa universal joint according to claim 1, wherein the inner walls of the curved grooves are provided with oil grooves.

3. A rzeppa universal joint, characterized in that it comprises two rzeppa universal joints according to claim 1 or 2, the outer end of the drive shaft (3) of one universal joint body (1) being connected to the outer end of the drive shaft (3) of the other universal joint body (1).

4. A rzeppa universal joint according to claim 3, characterized in that the outer ends of the drive shafts (3) of the two joint bodies (1) are connected to a flange, and the two flanges are connected.

5. A rzeppa universal joint according to claim 4, characterized in that the two flanges are connected by means of a plurality of bolts.

6. A ball cage type universal coupling according to claim 3, characterized in that the outer end of the transmission shaft (3) of one universal joint body (1) is connected with a steel pipe shaft (4), the outer end of the transmission shaft (3) of the other universal joint body (1) is connected with a spline shaft (5), the steel pipe shaft (4) is connected with a spline housing (6), the spline shaft (5) is slidably arranged in the spline housing (6), one end of the spline shaft (5) entering the spline housing (6) can slide into the steel pipe shaft (4), and a pressure spring (7) is connected between the spline shaft (5) and the spline housing (6).

7. A rzeppa universal joint according to claim 3, characterized in that the inner wall of the housing of the joint body (1) is coated with grease.

8. A rzeppa universal joint according to claim 3, characterized in that a flange cylinder is connected to the housing of the joint body (1).