CN213628550U

CN213628550U - Fork type hollow spline transmission shaft

Info

Publication number: CN213628550U
Application number: CN202022255891.9U
Authority: CN
Inventors: 徐勇; 杜绍权; 马生平; 尚涛; 张鹏娜; 于磊
Original assignee: Shaanxi Lantong Transmission Shaft Co ltd
Current assignee: Shaanxi Lantong Transmission Shaft Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-07-06
Anticipated expiration: 2030-10-12

Abstract

The utility model belongs to the technical field of automobile manufacturing, a fork type hollow spline transmission shaft is related to, including jaw, fork arm, the afterbody of jaw is the cylinder body type, and the afterbody of jaw is equipped with outstanding cylinder boss, and the fork arm is the cylinder type, and fork arm one end is fastened with cylinder boss and is connected, is equipped with the spline with the same axial direction of fork arm on the fork arm circumference, and the inside and outside cylinders of jaw, cylinder boss, fork arm are coaxial; the utility model discloses guaranteed under the prerequisite of transmission shaft bulk strength and stability, reduced the weight of transmission shaft.

Description

Fork type hollow spline transmission shaft

Technical Field

The utility model belongs to the technical field of the automobile-manufacturing, a hollow spline transmission shaft of fork type is related to.

Background

The transmission shaft is a part for transmitting power between a gearbox and a drive axle of the automobile. In order to adapt to the change of the relative position between the gearbox and the drive axle when the drive axle jumps up and down during the running of an automobile, the transmission shaft is structurally designed with a sliding spline matching structure capable of length compensation. A typical slip spline configuration for a propeller shaft uses a splined sleeve in conjunction with a splined yoke for torque load transfer through a length of mating splined connection.

Meanwhile, the light weight of the whole automobile is a continuously pursued target in the automobile industry. The application of lightweight motorcycle type for the goods can adorn more goods under the equal condition of paying of remembering heavily. And the traditional transmission shaft is made of solid steel, so that the weight of the whole vehicle is greatly increased. On the premise of ensuring that the transmission torque is not changed, the aim of pursuing the majority of automobiles is to lighten the transmission shaft.

Disclosure of Invention

The utility model provides a technical scheme that technical problem took is: the utility model provides a hollow spline transmission shaft of fork type, includes jaw 1, fork arm 2, and the afterbody of jaw 1 is the cylinder size, and the afterbody of jaw 1 is equipped with outstanding cylinder boss 3, and fork arm 2 is the cylinder type, and 2 one ends of fork arm are connected with 3 fastenings of cylinder boss, are equipped with on 2 circumferences of fork arm with 2 coaxial-axial splines 4 of fork arm, and the inside and outside cylinder of jaw 1, cylinder boss 3, fork arm 2 is coaxial.

Preferably, the fastening connection mode of the fork rod 2 and the cylindrical boss 3 is friction welding.

Preferably, the cylindrical boss 3 is provided with an annular groove 5, the annular groove 5 is matched with the annular end face of the fork rod 2, one end of the fork rod 2 is fixedly connected with the cylindrical boss 3 through the bottom face of the annular groove 5, and the annular groove 5 is coaxial with the fork head 1.

Preferably, the splines 4 on the fork 2 comprise external splines and internal splines.

Preferably, the fork rod 2 is made of seamless steel tubes.

Preferably, the length L of the spline 4 of the spline transmission shaft is 150-500 mm, the major diameter D of the spline 4 is 50-100 mm, and the minor diameter D of the spline 4 is 40-80 mm.

The utility model has the advantages that:

1. the utility model discloses an adopt seamless steel pipe friction welding's mode to divide into jaw and fork arm separation processing with fork type spline transmission shaft, with seamless steel pipe welding to the jaw after processing the jaw on, then process the spline on seamless steel pipe circumference, ensured under the prerequisite of transmission shaft intensity, reduced the whole weight of spline transmission shaft.

2. The utility model discloses a set up the annular groove of indent on the boss of jaw afterbody, and annular groove is coaxial with jaw and boss to the annular boss is better with the annular end face phase-match of fork arm, more accurate and the good jaw fork arm coaxiality of welding when having guaranteed friction weld.

Drawings

FIG. 1 is an elevational view of the overall construction of a fork-type hollow spline drive shaft;

FIG. 2 is an elevation view of a prong;

FIG. 3 is a right side view of the prong;

fig. 4 is a partially enlarged view of fig. 1.

Detailed Description

The related art in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood 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. 1-4, a hollow spline transmission shaft of fork type, including jaw 1, fork arm 2, the afterbody of jaw 1 is the cylinder size, and the afterbody of jaw 1 is equipped with outstanding cylinder boss 3, and fork arm 2 is the cylinder type, and 2 one end of fork arm and cylinder boss 3 fastening connection are equipped with on 2 circumferences of fork arm and 2 coaxial splines 4 of fork arm, and the inside and outside cylinders of jaw 1, cylinder boss 3, fork arm 2 are coaxial.

Furthermore, the fastening connection mode of the fork rod 2 and the cylindrical boss 3 is friction welding.

Further, be equipped with annular groove 5 on the cylinder boss 3, annular groove 5 and fork arm 2's annular end face phase-match, fork arm 2 one end and cylinder boss 3 pass through 5 bottom surfaces of annular groove fastening connection, and annular groove 5 is coaxial with jaw 1.

Further, the splines 4 on the fork rod 2 comprise external splines and internal splines.

Further, the fork rod 2 is made of seamless steel tubes.

Further, the length L of the spline 4 of the spline transmission shaft is 150-500 mm, the major diameter D of the spline 4 is 50-100 mm, and the minor diameter D of the spline 4 is 40-80 mm.

To sum up, the utility model provides a pair of hollow spline transmission shaft of fork type adopts friction weld's mode to weld the fork head through adopting seamless steel pipe, then at the periphery processing spline of seamless steel pipe, under the prerequisite of having guaranteed transmission shaft bulk strength and stability, has reduced the weight of transmission shaft, consequently the utility model discloses possess extensive application prospect.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a hollow spline transmission shaft of fork type, its characterized in that, includes fork (1), fork arm (2), the afterbody of fork (1) is the cylinder size, the afterbody of fork (1) is equipped with outstanding cylinder boss (3), fork arm (2) are the cylinder type, fork arm (2) one end and cylinder boss (3) fastening connection, be equipped with on fork arm (2) circumference with fork arm (2) with axial spline (4), the inside and outside cylinder of fork (1), cylinder boss (3), fork arm (2) is coaxial.

2. A hollow splined fork-shaped transmission shaft according to claim 1, wherein said fork shaft (2) is fixedly connected to said cylindrical boss (3) by friction welding.

3. The fork-type hollow spline transmission shaft according to claim 1, characterized in that an annular groove (5) is formed in the cylindrical boss (3), the annular groove (5) is matched with the annular end face of the fork rod (2), one end of the fork rod (2) is fixedly connected with the bottom face of the cylindrical boss (3) through the annular groove (5), and the annular groove (5) is coaxial with the fork head (1).

4. A hollow splined driveshaft according to claim 1, characterized in that the splines (4) on the yoke (2) comprise external splines, internal splines.

5. A hollow splined driveshaft according to claim 1, characterized in that said yoke (2) is made of seamless steel tube.

6. The hollow forked spline transmission shaft according to claim 1, wherein the length L of the spline (4) of the spline transmission shaft is 150-500 mm, the major diameter D of the spline (4) is 50-100 mm, and the minor diameter D of the spline (4) is 40-80 mm.