CN217207403U

CN217207403U - Spline transmission locking structure

Info

Publication number: CN217207403U
Application number: CN202220612407.XU
Authority: CN
Inventors: 陈轲
Original assignee: Wuxi Trumy Transmission Engineering Co ltd
Current assignee: Wuxi Trumy Transmission Engineering Co ltd
Priority date: 2022-03-21
Filing date: 2022-03-21
Publication date: 2022-08-16
Anticipated expiration: 2032-03-21

Abstract

The utility model relates to a spline transmission locking structure, which comprises a middle shaft, wherein the end part of the middle shaft is connected with the inner end of an inner spline flange plate, the inner periphery of the inner spline flange plate is fixedly connected with an outer spline shaft, the outer periphery of the inner spline flange plate is fixedly connected with the end part of the middle shaft, the middle part of the inner spline flange plate is provided with a deformation groove, the end part of the middle shaft is uniformly provided with a middle shaft connecting through hole, and the inner end of the inner spline flange plate is drilled with a flange plate connecting through hole matched with the inner spline flange plate; the screw thread end of the bolt passes through the middle shaft connecting through hole and the flange plate connecting through hole and then is screwed with the nut. The utility model has simple structure and small occupied space; the two 180-degree symmetrical arc-shaped slots are uniformly deformed by screwing 2 set screws, and the locking effect of the external spline shaft is realized by the uniform deformation of the two 180-degree symmetrical arc-shaped slots.

Description

Spline transmission locking structure

Technical Field

The utility model belongs to the technical field of mechanical transmission, a spline transmission locking structure is related to.

Background

The spline transmission torque is widely applied to mechanical design, and has the advantages of large bearing torque, small stress concentration, long service life and the like under the same shaft diameter. In mechanical design, the fit between the male spline shaft and the female spline flange is generally a clearance fit. The clearance fit can lead to the external spline shaft and the internal spline flange plate to generate fretting wear, and the service life is shortened.

Disclosure of Invention

An object of the utility model is to provide a spline transmission locking structure can solve clearance fit and can lead to external spline axle and internal spline ring flange to produce fretting wear, shortens life's problem.

According to the utility model provides a technical scheme: the utility model provides a spline transmission locking structure, includes the jackshaft, and the jackshaft end connection internal spline flange is inner, and internal spline flange internal week fixed connection external spline axle, internal spline flange periphery fixed connection jackshaft end, the deformation groove is seted up at internal spline flange middle part.

As a further improvement of the utility model, the end part of the intermediate shaft is evenly distributed with intermediate shaft connecting through holes, and the inner end of the internal spline flange is drilled with flange connecting through holes matched with the intermediate shaft connecting through holes; the threaded end of the bolt penetrates through the middle shaft connecting through hole and the flange connecting through hole and then is screwed with the nut.

As the utility model discloses a further improvement, the jackshaft periphery radially bores and establishes the screw, and screw intercommunication deformation groove installs holding screw in the screw, and holding screw extrudees the internal spline ring flange, makes it hug closely the external spline shaft.

As a further improvement of the utility model, the deformation groove is arc-shaped and is 180 degrees symmetrical, and the deformation groove is symmetrically arranged in the internal spline flange and is concentric with the internal spline flange.

As a further improvement, the periphery of the intermediate shaft is radially and uniformly provided with 3 screw holes.

As a further improvement of the utility model, the bushing is sleeved in the through hole of the intermediate shaft, and the bolt is positioned in the bushing.

As a further improvement, the diaphragm is arranged between the intermediate shaft and the internal spline flange.

As a further improvement of the utility model, the diaphragm is a flexible piece.

As a further improvement of the utility model, the diaphragm comprises a shoulder lining ring and a conical washer, and the shoulder lining ring and the conical washer rivet the stainless steel sheets of a plurality tightly.

As a further improvement of the utility model, a lining ring through hole is arranged in the shouldered lining ring.

The positive progress effect of this application lies in:

the utility model has simple structure and small occupied space; the two 180-degree symmetrical arc-shaped slots are uniformly deformed by screwing 2 set screws, and the locking effect of the external spline shaft is realized by the uniform deformation of the two 180-degree symmetrical arc-shaped slots.

Drawings

Fig. 1 is a sectional view of the overall structure of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a cross-sectional view of the diaphragm 5 of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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 efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, "including" and "having," and like terms, mean that "including" and "having," in addition to those already recited in "including" and "having," other content not already recited in the list; for example, a process, method, system, article, or apparatus that may comprise a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

In fig. 1-3, the external spline shaft comprises an external spline shaft 1, an internal spline flange 2, a set screw 3, a bolt 4, a diaphragm 5, a lining 6, a nut 7, an intermediate shaft 8 and the like.

As shown in figure 1, the utility model relates to a spline transmission locking structure, including jackshaft 8, 2 inner of 8 end connection internal spline ring flanges of jackshaft, 2 interior week fixed connection external spline shafts of internal spline ring flanges 1, 2 periphery fixed connection jackshaft 8 tip of internal spline ring flanges, deformation groove 2-1 is seted up at 2 middle parts of internal spline ring flanges.

The end part of the intermediate shaft 8 is evenly distributed with intermediate shaft connecting through holes for connecting the internal spline flange 2, and the inner end of the internal spline flange 2 is drilled with flange connecting through holes matched with the internal spline flange. The threaded end of the bolt 4 penetrates through the middle shaft connecting through hole and the flange connecting through hole and then is screwed with the nut 7, and the end part of the middle shaft 8 is fixedly connected with the periphery of the internal spline flange 2.

The periphery of the intermediate shaft 8 is radially drilled with screw holes for mounting the set screws 3, the screw holes are communicated with the deformation grooves 2-1, the set screws 3 are mounted in the screw holes, the set screws 3 extrude the inner spline flange 2 to enable the inner spline flange to be tightly attached to the outer spline shaft 1, and the fixed connection between the inner periphery of the inner spline flange 2 and the outer spline shaft 1 is completed.

The deformation groove 2-1 is arc-shaped, is symmetrical at 180 degrees, is symmetrically arranged in the internal spline flange 2, is concentric with the internal spline flange, and is stressed more uniformly during transmission.

3 screw holes are radially and uniformly distributed on the periphery of the intermediate shaft 8.

In order to prevent wear between the intermediate shaft 8 and the bolt 4, a bushing 6 is inserted into the intermediate shaft connection through-hole, and the bolt 4 is seated in the bushing 6.

In order to compensate for radial, axial and angular misalignment of the intermediate shaft 8 with the male spline shaft 1, a diaphragm 5 is mounted between the intermediate shaft 8 and the internally splined flange 2.

The diaphragm 5 is a flexible part and can deform under stress, and radial, axial and angular misalignment between the intermediate shaft 8 and the external spline shaft 1 is compensated through deformation of the diaphragm 5.

As shown in FIG. 3, the diaphragm 5 is a component, and a plurality of stainless steel sheets 5-2 are riveted by a shouldered liner ring 5-1 and a conical washer 5-3. A lining ring through hole is arranged in the shouldered lining ring 5-1 and is used for installing the set screw 3.

The utility model discloses a theory of operation does:

the moment of torsion is transmitted to internal spline ring flange 2 from external spline axle 1, and 3 bolts 4 are passed through to internal spline ring flange 2 main aspects and are transmitted the moment of torsion to diaphragm 5, through diaphragm 5 straining beam with the moment of torsion transmission to with the jackshaft 8 be connected three bolts 4 above.

It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. The utility model provides a spline transmission locking structure, its characterized in that includes jackshaft (8), and jackshaft (8) end connection internal spline ring flange (2) is inner, and internal spline shaft (1) of internal spline ring flange (2) internal circumference fixed connection, internal spline ring flange (2) periphery fixed connection jackshaft (8) tip, deformation groove (2-1) are seted up at internal spline ring flange (2) middle part.

2. The spline transmission locking structure according to claim 1, wherein the end of the intermediate shaft (8) is uniformly provided with intermediate shaft connecting through holes, and the inner end of the internal spline flange (2) is drilled with a flange connecting through hole matched with the internal spline flange; the threaded end of the bolt (4) penetrates through the middle shaft connecting through hole and the flange plate connecting through hole and then is sleeved with a nut (7).

3. The spline transmission locking structure according to claim 1, wherein a screw hole is radially drilled in the outer periphery of the intermediate shaft (8), the screw hole is communicated with the deformation groove (2-1), a set screw (3) is installed in the screw hole, and the set screw (3) presses the internal spline flange (2) to be tightly attached to the external spline shaft (1).

4. A spline driving locking structure according to claim 1, characterized in that the deformation groove (2-1) is circular arc-shaped, 180 ° symmetrical, symmetrically arranged in the internal spline flange (2) and concentric therewith.

5. A spline lock according to claim 1, wherein 3 screw holes are radially and uniformly distributed in the outer periphery of the intermediate shaft (8).

6. A spline lock according to claim 2, wherein a bushing (6) is fitted in the intermediate shaft connecting through hole, and the bolt (4) is located in the bushing (6).

7. A spline lock according to claim 1, wherein a diaphragm (5) is mounted between the intermediate shaft (8) and the internally splined flange (2).

8. A spline lock according to claim 7, wherein the diaphragm (5) is a flexible member.

9. A spline lock according to claim 8, wherein the diaphragm (5) comprises a shouldered collar (5-1) and a tapered washer (5-3), the shouldered collar (5-1) and the tapered washer (5-3) clinching the plurality of stainless steel plates (5-2).

10. A spline drive locking arrangement according to claim 9, characterized in that a collar through hole is provided in the shouldered collar (5-1).