CN218377379U

CN218377379U - Spline shaft with good lubricating property

Info

Publication number: CN218377379U
Application number: CN202222839897.XU
Authority: CN
Inventors: 何英杰
Original assignee: Zhejiang Boying Machinery Co ltd
Current assignee: Zhejiang Boying Machinery Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-01-24
Anticipated expiration: 2032-10-26

Abstract

The utility model discloses a integral key shaft that lubricating property is good relates to integral key shaft technical field. The lubricating oil connecting device comprises a shaft body, wherein a lubricating oil connecting pipe is arranged in the middle of the shaft body, a key groove is formed in the tail end of the shaft body, a rotating body is arranged in the middle of the shaft body, a connecting groove is formed in the surface of the shaft body, an oil groove is formed in the inner wall of the connecting groove, an oil storage cavity is formed in the shaft body, an annular groove is formed in the inner wall of the lubricating oil connecting pipe, an oil conveying pipe is fixedly connected to the side surface of the lubricating oil connecting pipe, a positioning support is fixedly connected to the side surface of the oil conveying pipe, a pipeline interface is arranged on the side surface of the oil conveying pipe, and mechanical seals are arranged at two ends of the lubricating oil connecting pipe; through the oil groove that is provided with the keyway one-to-one, play the transport effect to leading-in lubricating oil for in the lubricating oil of input can be even covers each keyway, improve the coverage rate of lubricating oil in the coupling part of integral key shaft and relevant connecting piece, thereby play the purpose that improves the lubricity.

Description

Spline shaft with good lubricating property

Technical Field

The utility model relates to a integral key shaft technical field specifically is an integral key shaft that lubricating property is good.

Background

The spline shaft is a mechanical transmission type, has the same functions as a flat key, a semicircular key and an inclined key and is used for transmitting mechanical torque, a longitudinal key groove is formed in the outer surface of the shaft, and a rotating part sleeved on the shaft is also provided with a corresponding key groove and can keep synchronous rotation with the shaft. While rotating, some of them can slide on the shaft longitudinally, such as the gear shifting gear of the gear box.

In the prior art, when a spline shaft and a spline shaft connecting mechanism are in an operation process, mechanisms such as gears connected with the spline shaft need to slide at a key groove position, when common spline shafts are filled with lubricating oil, the lubricating oil is added in a dropwise mode or is input through a small pipeline, the problem of insufficient lubricating oil coverage is easily caused in the operation process of the spline shaft, and the connection surface and the moving area of the spline shaft and a relevant connecting piece cannot be completely covered, so that the lubricating performance is insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spline shaft that lubricating property is good to solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a spline shaft with good lubricating property comprises a shaft body, wherein a lubricating oil connecting pipe is arranged in the middle of the shaft body;

the tail end of the shaft body is provided with a key groove, the middle part of the shaft body is provided with a rotating body, the surface of the shaft body is provided with a connecting groove, the inner wall of the connecting groove is provided with an oil groove, and an oil storage cavity is formed inside the shaft body;

the lubricating oil connecting pipe is characterized in that an annular groove is formed in the inner wall of the lubricating oil connecting pipe, an oil conveying pipe is fixedly connected to the side face of the lubricating oil connecting pipe, a positioning support is fixedly connected to the side face of the oil conveying pipe, a pipeline connector is arranged on the side face of the oil conveying pipe, and mechanical seals are arranged at two ends of the lubricating oil connecting pipe.

Further, the keyway is provided with a set ofly at least, and every group keyway is at the equidistant even setting in axis body surface.

Furthermore, the cross section of the rotating body is in a gear shape, and the rotating body and the shaft body are coaxially arranged.

Further, the oil groove corresponds to the key groove, and the oil groove extends into the key groove.

Further, the oil storage cavity is arranged opposite to the key groove.

Furthermore, two annular grooves are arranged and communicated with the oil conveying pipe.

Compared with the prior art, the utility model provides a spline shaft that lubricating property is good possesses following beneficial effect:

this integral key shaft that lubricating property is good through being provided with the oil groove of keyway one-to-one, plays the transport effect to leading-in lubricating oil for in the lubricating oil of input can be even covers each keyway, improve the coverage rate of lubricating oil in the integral key shaft and the coupling part of relevant connecting piece, thereby play the purpose that improves the lubricity.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a cross-sectional view of a connecting slot of the present invention;

fig. 3 is a cross-sectional view of the lubricating oil connecting pipe of the present invention.

In the figure: 1. a shaft body; 11. a keyway; 12. a rotating body; 13. connecting grooves; 14. an oil sump; 15. an oil storage chamber; 2. a lubricating oil connecting pipe; 21. an annular groove; 22. an oil delivery pipe; 23. positioning the bracket; 24. a pipe joint; 25. and (4) mechanically sealing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. 1-3, the utility model discloses a spline shaft with good lubricating performance, which comprises a shaft body 1, wherein a lubricating oil connecting pipe 2 is arranged in the middle of the shaft body 1; a key groove 11 is formed at the tail end of the shaft body 1, a rotating body 12 is arranged in the middle of the shaft body 1, a connecting groove 13 is formed in the surface of the shaft body 1, an oil groove 14 is formed in the inner wall of the connecting groove 13, and an oil storage cavity 15 is formed in the shaft body 1; annular groove 21 has been seted up to the inner wall of lubricating oil connecting pipe 2, the side fixedly connected with defeated oil pipe 22 of lubricating oil connecting pipe 2, the side fixedly connected with locating support 23 of defeated oil pipe 22, the side of defeated oil pipe 22 is provided with pipeline interface 24, the both ends of lubricating oil connecting pipe 2 are provided with mechanical seal 25.

Specifically, the key grooves 11 are at least provided with one group, and each group of key grooves 11 are uniformly arranged on the surface of the shaft body 1 at equal intervals.

In this embodiment, 11 surplus spline shaft coupling spare of equidistant even setting link to each other, rotate through 11 drive connection spare of keyway when the integral key shaft rotates, and the connecting piece can slide in 11 length ranges of keyway simultaneously.

Specifically, the cross section of the rotating body 12 is in a gear shape, and the rotating body 12 is arranged coaxially with the shaft body 1.

In this embodiment, the rotating body 12 is used to connect with other connecting members to drive the other connecting members to rotate.

Specifically, the oil groove 14 corresponds to the key groove 11, and the oil groove 14 extends into the key groove 11.

In this embodiment, the lubricating oil fed from the oil pipe 22 flows into the groove 14 through the annular groove 21, flows into the key groove 11 along the oil groove 14, adheres between the coupling and the key groove 11, and lubricates the sliding of the coupling.

Specifically, the oil storage chamber 15 is disposed opposite to the key groove 11.

In this embodiment, the oil storage chamber 15 is disposed inside the shaft body 1, and plays a temporary storage role in the shaft body 1 for the lubricating oil circulation pipeline.

Specifically, two annular grooves 21 are provided, and the annular grooves 21 are communicated with the oil delivery pipe 22.

In this embodiment, when the shaft body 1 rotates, a part of each oil groove 14 is always in butt joint with the annular grooves 21, so that continuous supply of lubricating oil is ensured, and the two annular grooves 21 are provided with oil delivery passages, so that the input amount of the lubricating oil is ensured.

When using, it links to each other with outside lubricating oil pipeline to manage 22 through 24 volume defeated oil pipes of pipeline interface, inside lubricating oil got into ring channel 21 through defeated oil pipe 22, axis body 1 rotates in-process oil groove 14 to have partly all the time relative with ring channel 21, lubricating oil permeates oil groove 11 through relative department, and flow into inside oil storage chamber 15 along oil groove 14, and flow gradually to the part that oil groove 14 is located keyway 11, contact with 11 external connection spare of keyway, play the lubrication action to spline shaft external connection spare and spline shaft connection face.

In summary, the spline shaft with good lubrication performance has the advantages that the oil grooves 14 corresponding to the key grooves 11 one to one are formed, so that the introduced lubricating oil is conveyed, the input lubricating oil can uniformly cover all the key grooves, the coverage rate of the lubricating oil in the connecting part of the spline shaft and the relevant connecting piece is improved, and the purpose of improving the lubrication performance is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. The utility model provides a spline shaft that lubricating property is good, includes axis body (1), its characterized in that: the middle part of the shaft body (1) is provided with a lubricating oil connecting pipe (2);

a key groove (11) is formed in the tail end of the shaft body (1), a rotating body (12) is arranged in the middle of the shaft body (1), a connecting groove (13) is formed in the surface of the shaft body (1), an oil groove (14) is formed in the inner wall of the connecting groove (13), and an oil storage cavity (15) is formed in the shaft body (1);

ring channel (21) have been seted up to the inner wall of lubricating oil connecting pipe (2), defeated oil pipe (22) of the side fixedly connected with of lubricating oil connecting pipe (2), the side fixedly connected with locating support (23) of defeated oil pipe (22), the side of defeated oil pipe (22) is provided with pipeline interface (24), the both ends of lubricating oil connecting pipe (2) are provided with mechanical seal (25).

2. The spline shaft excellent in lubricating property according to claim 1, wherein: the key grooves (11) are at least provided with one group, and each group of key grooves (11) are uniformly arranged on the surface of the shaft body (1) at equal intervals.

3. The spline shaft with good lubricating property according to claim 1, wherein: the cross section of the rotating body (12) is in a gear shape, and the rotating body (12) and the shaft body (1) are coaxially arranged.

4. The spline shaft with good lubricating property according to claim 1, wherein: the oil groove (14) corresponds to the key groove (11), and the oil groove (14) extends into the key groove (11).

5. The spline shaft with good lubricating property according to claim 1, wherein: the oil storage cavity (15) is opposite to the key groove (11).

6. The spline shaft excellent in lubricating property according to claim 1, wherein: the number of the annular grooves (21) is two, and the annular grooves (21) are communicated with the oil conveying pipe (22).