CN216199939U

CN216199939U - Split type internal spline shaft

Info

Publication number: CN216199939U
Application number: CN202122801909.5U
Authority: CN
Inventors: 缪振亚; 缪任凯
Original assignee: Jiangyin Deling Machinery Co ltd
Current assignee: Jiangyin Deling Machinery Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-05
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a split type internal spline shaft which comprises a hollow shaft body and a spline sleeve, wherein the spline sleeve is inserted into the hollow shaft body, the inner side wall of the spline sleeve is fixedly connected with a plurality of internal splines, the outer side wall of the spline sleeve is fixedly connected with a plurality of guide blocks, the inner wall of the hollow shaft body is provided with guide grooves corresponding to the guide blocks, the guide blocks are slidably inserted into the guide grooves, a plurality of circular pin holes are formed in the joint of the outer wall of the hollow shaft body and the inner wall of the spline sleeve, and cylindrical pins are inserted into the circular pin holes.

Description

Split type internal spline shaft

Technical Field

The utility model relates to the field of spline shaft related products, in particular to a split type internal spline shaft.

Background

The spline shaft is a mechanical transmission type, has the same functions as a flat key, a semicircular key and a wedge 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 which 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.

However, the existing internal spline shaft is generally an integral internal spline shaft, is large in size, cannot be machined by a gear shaping machine, can only be machined by electric pulses, is high in cost and low in precision, is axially divided into two sections and is connected by bolts, and the structure occupies a large space, and increases the size of a gear box and the overall cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a split type internal spline shaft which is simple in integral structure, low in processing and maintenance cost and convenient to disassemble and assemble through a split type design, and aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a split type internal spline axle, includes hollow shaft body and spline housing, the spline housing is inserted and is established in the hollow shaft body, a plurality of internal splines of fixedly connected with on the inside wall of spline housing, a plurality of guide blocks of fixedly connected with on the lateral wall of spline housing, be equipped with the guide way that corresponds with a plurality of guide blocks on the inner wall of hollow shaft body, the guide block slides and inserts and establish in the guide way, the outer wall of hollow shaft body is equipped with a plurality of circular pinholes with the inner wall department of laminating mutually of spline housing, and is a plurality of all insert in the circular pinhole and be equipped with the cylindric lock.

Preferably, the diameters of the plurality of circular pin holes are slightly larger than the diameter of the cylindrical pin, and the outer wall of the cylindrical pin is attached to the inner wall of the circular pin hole.

Preferably, the number of the plurality of circular pin holes is not less than ten, and the adjacent circular pin holes are arranged at equal intervals.

Preferably, the number of the guide blocks is three.

Compared with the prior art, the utility model has the beneficial effects that:

according to the split type internal spline shaft, the guide groove is formed in the inner wall of the hollow shaft body, the guide block on the outer wall of the hollow shaft body can be inserted into the guide groove for guiding installation when the spline housing is installed, the inner wall of the hollow shaft body and the semicircular pin holes symmetrically formed in the outer wall of the spline housing are mutually attached after the spline housing is spliced with the hollow shaft body to form the circular pin holes, and finally the cylindrical pins are inserted into the circular pin holes to support the hollow shaft body and the spline housing in a pressing mode to realize fixation.

Drawings

FIG. 1 is a schematic structural view of a split type female spline shaft according to the present invention.

In the figure: 1. a hollow shaft body; 2. a spline housing; 3. an internal spline; 4. a guide block; 5. a guide groove; 6. a circular pin hole; 7. and (7) a cylindrical pin.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, an embodiment of the present invention: a split type internal spline shaft comprises a hollow shaft body 1 and a spline housing 2, the spline housing 2 is inserted in the hollow shaft body 1, the inner side wall of the spline housing 2 is fixedly connected with a plurality of internal splines 3, the outer side wall of the spline housing 2 is fixedly connected with a plurality of guide blocks 4, the inner wall of the hollow shaft body 1 is provided with guide grooves 5 corresponding to the guide blocks 4, the guide blocks 4 are slidably inserted in the guide grooves 5, the joint part of the outer wall of the hollow shaft body 1 and the inner wall of the spline housing 2 is provided with a plurality of circular pin holes 6, cylindrical pins 7 are inserted in the circular pin holes 6, concretely, the inner wall of the hollow shaft body 1 is provided with the guide grooves 5, the guide blocks 4 on the outer wall of the hollow shaft body 1 can be inserted into the guide grooves 5 for guiding installation when the spline housing 2 is installed, after the spline housing 2 is spliced with the hollow shaft body 1, the inner wall of the hollow shaft body 1 and the semicircular pin holes symmetrically arranged on the outer wall of the spline housing 2 are mutually jointed to form the circular pin holes 6, and finally, inserting a cylindrical pin 7 into the circular pin hole 6 to support the hollow shaft body 1 and the spline housing 2 in a pressing mode to realize fixation.

Further, the diameter of a plurality of round pin holes 6 slightly is less than the diameter of cylindric lock 7, and the outer wall of cylindric lock 7 laminates with the inner wall of round pin hole 6 each other, can extrude cylindric lock 7 into in the round pin hole 6, is difficult for droing.

Further, the number of the plurality of round pin holes 6 is not less than ten, and the adjacent round pin holes are arranged at equal intervals.

Further, the plurality of guide blocks 4 is three in number.

The working principle is as follows: set up guide way 5 on hollow axis body 1's inner wall at first, can make guide block 4 on its outer wall insert guide way 5 when installation spline housing 2 and carry out the installation of leading, thereby form circular pinhole 6 at the semicircle round pin hole of the symmetry setting on spline housing 2's the outer wall of the inner wall of hollow axis body 1 after spline housing 2 splices with hollow axis body 1 and the outer wall of hollow axis body 1 each other laminating, insert cylindric lock 7 in order to support hollow axis body 1 and spline housing 2 to the round pin hole 6 again at last and realize fixedly in order to support pressing.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a split type internal spline axle, includes hollow axis body (1) and spline housing (2), its characterized in that: the spline housing (2) is inserted in the hollow shaft body (1), a plurality of internal splines (3) are fixedly connected to the inner side wall of the spline housing (2), a plurality of guide blocks (4) are fixedly connected to the outer side wall of the spline housing (2), guide grooves (5) corresponding to the guide blocks (4) are formed in the inner wall of the hollow shaft body (1), the guide blocks (4) are slidably inserted in the guide grooves (5), a plurality of circular pin holes (6) are formed in the joint of the outer wall of the hollow shaft body (1) and the inner wall of the spline housing (2), and a plurality of cylindrical pins (7) are inserted in the circular pin holes (6).

2. The split-type female spline shaft according to claim 1, wherein: the diameters of the circular pin holes (6) are slightly larger than the diameter of the cylindrical pin (7), and the outer wall of the cylindrical pin (7) is attached to the inner wall of the circular pin hole (6).

3. The split-type female spline shaft according to claim 1, wherein: the number of the round pin holes (6) is not less than ten, and the round pin holes are arranged at equal intervals.

4. The split-type female spline shaft according to claim 1, wherein: the number of the guide blocks (4) is three.