CN212313282U - Transmission shaft with buffer device - Google Patents

Abstract

The utility model relates to a transmission shaft with a buffer device, belonging to the field of automobile accessories, wherein a C-shaped sleeve convex circular fork is arranged on the left side of a sleeve, a cylindrical buffer sleeve is arranged on the right side of the sleeve, the left side of the buffer sleeve extends into the right side of the sleeve, a cylindrical telescopic spline shaft is arranged on the right side of the buffer sleeve, a cylindrical telescopic pipe is arranged outside the telescopic spline shaft, a C-shaped telescopic convex circular fork is arranged on the right side of the telescopic pipe, a spiral torsion spring is arranged outside the connecting part of the sleeve and the buffer sleeve, the left side of the torsion spring is connected with the sleeve through a bolt, the right side of the torsion spring is connected with the buffer sleeve through a bolt, an automobile engine drives a transmission shaft with a buffer device and a rear axle to push an automobile to move forward, and when the rotating speed and the torque of the engine and the rear axle are changed every time, the torsion spring realizes slight differential between the sleeve and the buffer sleeve under the condition that the engine and the rear axle generate impact force, so that the buffer effect is achieved.

Description

Transmission shaft with buffer device

Technical Field

The utility model relates to a from transmission shaft of taking buffer belongs to the auto-parts field, in particular to buffer of transmission shaft.

Background

The transmission shaft and the device are used for transmitting the power of the engine to the rear axle to drive the automobile to move forwards. The transmission shafts produced by the existing transmission shaft suppliers are not provided with buffer devices, the automobile needs to change gears in the driving process, the driving speed of the automobile can be changed after the gears are changed every time, the transmission shaft can be impacted by more than the output torque of an engine at the moment when the automobile speed is changed, the abrasion degree of the telescopic spline shaft and the cross shaft can be obviously accelerated when the transmission shaft is impacted for a long time, and the vehicle can be subjected to pause and frustration. Therefore, a transmission shaft with a buffer device is needed to solve the defects of the existing transmission shaft.

Disclosure of Invention

The utility model relates to a from transmission shaft of taking buffer has solved above-mentioned defect, adopt cylindric sleeve pipe, the sleeve pipe convex circle fork of C type is installed on the sheathed tube the left side, install cylindric buffer tube on the sheathed tube the right, buffer tube's the left side extends to the inside on sleeve pipe the right, columniform flexible integral key shaft is installed on buffer tube's the right, cylindric flexible pipe is installed to flexible integral key shaft's outside, flexible integral key shaft's the flexible convex circle fork of C type is installed on the right, install helical torsion spring in the outside at sleeve pipe and buffer tube connected position, bolt and bushing are passed through on torsion spring's the left side, torsion spring's the right is passed through bolt and buffer tube connected, automobile engine drives from transmission shaft and the rear axle promotion car of taking buffer and advances, when engine and rear axle change rotational speed and moment of torsion at every turn, torsion spring makes the differential slightly reach the effect of buffering between sleeve pipe and the buffer tube under .

A transmission shaft with a buffer device is characterized by comprising a sleeve, a buffer sleeve, a torsion spring, a bolt, a sleeve convex fork, a telescopic spline shaft, a telescopic pipe and a telescopic pipe convex fork;

the sleeve is cylindrical, and a C-shaped sleeve convex circular fork is arranged at the top end of the left side of the sleeve;

the buffer sleeve is cylindrical, the diameter of the left side of the buffer sleeve is equal to that of the inside of the right side of the sleeve, the left side of the buffer sleeve is arranged inside the right side of the sleeve, the diameter of the right side of the buffer sleeve is equal to that of the outside of the sleeve, the top end of the right side of the buffer sleeve is provided with a cylindrical telescopic spline shaft, and the surface of the telescopic spline shaft is transversely provided with wavy spline teeth;

the torsion spring is spiral and is arranged outside the sleeve and the buffer sleeve, the connecting ring at the top end of the left side of the torsion spring is connected with the back of the middle part of the sleeve through a bolt, and the connecting ring at the top end of the right side of the torsion spring is connected with the front of the middle part of the right side of the buffer sleeve through a bolt;

the telescopic pipe is cylindrical and is arranged on the telescopic spline shaft, the spline grooves in the telescopic pipe are meshed with the spline teeth on the surface of the telescopic spline shaft, and the top end of the right side of the telescopic pipe is provided with a C-shaped telescopic pipe convex circular fork.

Further, the anti-rotation torque of the torsion spring is larger than the output maximum torque of the speed changer.

Has the advantages that: the transmission shafts produced by the existing transmission shaft suppliers are not provided with buffer devices, the automobile needs to change gears in the driving process, the driving speed of the automobile can be changed after the gears are changed every time, the transmission shaft can be impacted by more than the output torque of an engine at the moment when the automobile speed is changed, the abrasion degree of the telescopic spline shaft and the cross shaft can be obviously accelerated when the transmission shaft is impacted for a long time, and the vehicle can be subjected to pause and frustration. A transmission shaft with a buffer device adopts a cylindrical sleeve, a C-shaped sleeve convex fork is arranged at the left side of the sleeve, a cylindrical buffer sleeve is arranged on the right side of the sleeve, the left side of the buffer sleeve extends into the right side of the sleeve, a cylindrical telescopic spline shaft is arranged on the right side of the buffer sleeve, a cylindrical telescopic pipe is arranged outside the telescopic spline shaft, a C-shaped telescopic convex circular fork is arranged on the right side of the telescopic pipe, a spiral torsion spring is arranged outside the connecting part of the sleeve and the buffer sleeve, the left side of the torsion spring is connected with the sleeve through a bolt, the right side of the torsion spring is connected with the buffer sleeve through a bolt, an automobile engine drives a transmission shaft with a buffer device and a rear axle to push an automobile to move forward, and when the rotating speed and the torque of the engine and the rear axle are changed every time, the torsion spring realizes slight differential between the sleeve and the buffer sleeve under the condition that the engine and the rear axle generate impact force, so that the buffer effect is achieved.

Drawings

FIG. 1 is a front view of a drive shaft with a self-buffering mechanism;

FIG. 2 is a schematic structural view of a sleeve, a buffer sleeve and a bolt;

the marks in the above figures are a sleeve 1, a buffer sleeve 2, a torsion spring 3, a bolt 4, a sleeve convex circular fork 5, a telescopic spline shaft 6, a telescopic pipe 7 and a telescopic pipe convex circular fork 8.

Detailed Description

The shape and structure of the present invention will be described in detail with reference to the accompanying drawings and the reference numerals:

a transmission shaft with a buffer device is characterized by comprising a sleeve 1, a buffer sleeve 2, a torsion spring 3, a bolt 4, a sleeve convex fork 5, a telescopic spline shaft 6, a telescopic pipe 7 and a telescopic pipe convex fork 8;

the sleeve 1 is cylindrical, and a C-shaped sleeve convex circular fork 5 is arranged at the top end of the left side of the sleeve 1;

the buffer sleeve 2 is cylindrical, the diameter of the left side of the buffer sleeve 2 is equal to that of the inside of the right side of the sleeve 1, the left side of the buffer sleeve 2 is arranged inside the right side of the sleeve 1, the diameter of the right side of the buffer sleeve 2 is equal to that of the outside of the sleeve 1, the top end of the right side of the buffer sleeve 2 is provided with a cylindrical telescopic spline shaft 6, and the surface of the telescopic spline shaft 6 is transversely provided with wavy spline teeth;

the torsion spring 3 is spiral and is arranged outside the sleeve 1 and the buffer sleeve 2, the connecting ring at the top end of the left side of the torsion spring 3 is connected with the back of the middle part of the sleeve 1 through a bolt 4, and the connecting ring at the top end of the right side of the torsion spring 3 is connected with the front of the middle part of the right side of the buffer sleeve 2 through a bolt 4;

the telescopic pipe 7 is cylindrical and is arranged on the telescopic spline shaft 6, a spline groove in the telescopic pipe 7 is meshed with spline teeth on the surface of the telescopic spline shaft 6, and a C-shaped telescopic pipe convex circular fork 8 is arranged at the right top end of the telescopic pipe 7.

Further, the anti-rotation torque of the torsion spring 3 > the transmission output maximum torque.

When the transmission shaft with the buffer device is used, when a driver starts an engine and then starts a gear, the engine drives a transmission, the transmission drives the transmission shaft with the buffer device, and the transmission shaft with the buffer device drives a rear axle to drive wheels to rotate to push an automobile to move forward, and meanwhile, when a sleeve drives a buffer sleeve to rotate through a torsion spring, the buffer sleeve bears the resistance of a telescopic pipe and the rear axle, the buffer sleeve can provide the resistance in the opposite direction to the torsion spring to force the right side of the torsion spring and the rotation direction of the buffer sleeve to slightly lag behind the rotation direction of the sleeve, and when the rotation speed and the torque of the engine and the rear axle are changed every time, the torsion spring realizes slight differential speed between the sleeve and the buffer sleeve under the condition that the engine and the rear axle generate impact force, so that the buffer effect.

The above-mentioned non-detailed description is prior art.

The foregoing is merely a general disclosure of the invention and is not intended to limit the invention in any way; those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims.

Claims (2)

1. A transmission shaft with a buffer device is characterized by comprising a sleeve, a buffer sleeve, a torsion spring, a bolt, a sleeve convex fork, a telescopic spline shaft, a telescopic pipe and a telescopic pipe convex fork;

the sleeve is cylindrical, and a C-shaped sleeve convex circular fork is arranged at the top end of the left side of the sleeve;

the buffer sleeve is cylindrical, the diameter of the left side of the buffer sleeve is equal to that of the inside of the right side of the sleeve, the left side of the buffer sleeve is arranged inside the right side of the sleeve, the diameter of the right side of the buffer sleeve is equal to that of the outside of the sleeve, the top end of the right side of the buffer sleeve is provided with a cylindrical telescopic spline shaft, and the surface of the telescopic spline shaft is transversely provided with wavy spline teeth;

the torsion spring is spiral and is arranged outside the sleeve and the buffer sleeve, the connecting ring at the top end of the left side of the torsion spring is connected with the back of the middle part of the sleeve through a bolt, and the connecting ring at the top end of the right side of the torsion spring is connected with the front of the middle part of the right side of the buffer sleeve through a bolt;

the telescopic pipe is cylindrical and is arranged on the telescopic spline shaft, the spline grooves in the telescopic pipe are meshed with the spline teeth on the surface of the telescopic spline shaft, and the top end of the right side of the telescopic pipe is provided with a C-shaped telescopic pipe convex circular fork.

2. A drive shaft with a self-buffering device as claimed in claim 1, wherein the torsion spring has an anti-rotation torque > the transmission output maximum torque.

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