CN210483831U

CN210483831U - Wear-resistant camshaft

Info

Publication number: CN210483831U
Application number: CN201921523844.9U
Authority: CN
Inventors: 黄朝君
Original assignee: Wuxi Huiquan Camshaft Co Ltd
Current assignee: Wuxi Huiquan Camshaft Co Ltd
Priority date: 2019-09-13
Filing date: 2019-09-13
Publication date: 2020-05-08
Anticipated expiration: 2029-09-13

Abstract

The utility model discloses a camshaft resistance to wears, which comprises a main shaft, fixed establishment is installed to main shaft one end, just cam one, cam two and cam three are installed respectively to the equidistance on the main shaft of fixed establishment one side, the utility model discloses the beneficial effect who reaches is: the utility model relates to a camshaft of nai wearing, set up the arc spout, cylindrical gyro wheel, the through-hole, the gim peg, screw thread post and nut, through gim peg one end fixed connection screw thread post and pass cam one during the use, arc spout and cylindrical gyro wheel that two and three lateral walls of cam set up are fixed with nut threaded connection, and cylindrical gyro wheel rotates with the gim peg to be connected, cylindrical gyro wheel through setting up in the use, the bottom of having avoided the valve tappet directly takes place the friction with the cam, thereby make valve tappet bottom and cam cause wearing and tearing, play certain guard action to the device, and be convenient for dismantle the change, and the practicality and the convenience of device have been improved.

Description

Wear-resistant camshaft

Technical Field

The utility model relates to a camshaft resistance to wears belongs to camshaft technical field.

Background

The camshaft is a component in a piston engine and is used for controlling the opening and closing actions of the valve, although the rotating speed of the camshaft is half of that of a crankshaft in a four-stroke engine, the rotating speed of the camshaft is still high normally and the camshaft needs to bear large torque, so that the camshaft is high in strength and support in design and is generally made of high-quality alloy steel or alloy steel.

When the existing camshaft is used, the valve tappet is driven by the cam to move to control the opening and closing of the valve, the bottom end of the valve tappet is rubbed with the cam, the bottom end of the valve tappet is abraded seriously with the cam easily, the thickness is reduced, the angle of a trigger cylinder air inlet valve after the thickness is reduced can be changed, the normal use of the cylinder is influenced, certain potential safety hazards exist, the practicability of the existing camshaft is not high, and the wear-resistant camshaft is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a camshaft resistance to wears.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a camshaft resistance to wears, the motor spindle comprises a spindle, fixed establishment is installed to main shaft one end, just cam one, cam two and cam three are installed respectively to the equidistance on the main shaft of fixed establishment one side, install slewing mechanism on cam one, cam two and the cam three respectively, install stop gear on the slewing mechanism.

As a preferred technical scheme of the utility model, fixed establishment includes fixed disc, the fixed cover of fixed disc is established and is installed in main shaft one end, four fixed lockholes have been seted up on the fixed disc, and four fixed lockhole is each other along main shaft symmetric distribution on the fixed disc lateral wall.

As a preferred technical scheme of the utility model, slewing mechanism includes the arc spout, the arc spout has been seted up to a protruding one side of cam, just be provided with cylindrical gyro wheel in the arc spout.

As an optimized technical scheme of the utility model, cylindrical gyro wheel material is made for elastic rubber.

As an optimal technical scheme of the utility model, the arc spout has not been seted up equally to three protruding one sides of cam one, cam two and cam, and is a plurality of all be provided with cylindrical gyro wheel in the arc spout.

As a preferred technical scheme of the utility model, stop gear includes three through-hole, it does not seted up the through-hole, it is three to equally divide on cam one, cam two and the three protruding lateral walls of cam and the cylindrical gyro wheel through-hole one end has all been alternate the gim peg, gim peg one end fixed mounting has the screw thread post, just screw thread post one end is passed through-hole other end threaded connection and is had the nut.

The utility model discloses the beneficial effect who reaches is:

(1) the utility model relates to a camshaft resistance to wears sets up fixed disc, fixed lockhole and main shaft, and four fixed lockholes fixed mounting that the symmetry was seted up on the fixed disc during the use have improved the stability to the device installation on the drive wheel.

(2) The utility model relates to a camshaft of nai wearing, set up the arc spout, cylindrical gyro wheel, the through-hole, the gim peg, screw thread post and nut, through gim peg one end fixed connection screw thread post and pass cam one during the use, arc spout and cylindrical gyro wheel that two and three lateral walls of cam set up are fixed with nut threaded connection, and cylindrical gyro wheel rotates with the gim peg to be connected, cylindrical gyro wheel through setting up in the use, the bottom of having avoided the valve tappet directly takes place the friction with the cam, thereby make valve tappet bottom and cam cause wearing and tearing, play certain guard action to the device, and be convenient for dismantle the change, and the practicality and the convenience of device have been improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an enlarged schematic view of the structure at a of the present invention;

FIG. 3 is a schematic view of a partial structure of a cam according to the present invention;

fig. 4 is a schematic side view of the present invention.

In the figure: 1. a main shaft; 2. a fixing mechanism; 21. fixing the disc; 22. fixing the lock hole; 3. a first cam; 4. a second cam; 5. a third cam; 6. a rotating mechanism; 61. an arc-shaped chute; 62. a cylindrical roller; 7. a limiting mechanism; 71. a through hole; 72. a fixing bolt; 73. a threaded post; 74. and (4) a nut.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-4, a wear-resistant camshaft, including main shaft 1, fixed establishment 2 is installed to main shaft 1 one end, and fixed establishment 2 one side main shaft 1 equidistance installs cam one 3, cam two 4 and cam three 5 respectively, install slewing mechanism 6 on cam one 3, cam two 4 and the cam three 5 respectively, install stop gear 7 on the slewing mechanism 6, through setting up fixed establishment 2, slewing mechanism 6 and stop gear 7, make the bottom of having avoided the valve tappet directly take place the friction with the cam, thereby make valve tappet bottom and cam cause wearing and tearing, play certain guard action to the device, and improved the practicality and the convenience of device.

Wherein, fixed establishment 2 includes fixed disc 21, and fixed disc 21 is fixed to overlap to establish and is installed in 1 one end of main shaft, has seted up four fixed lockholes 22 on the fixed disc 21, and four fixed lockholes 22 each other along 1 symmetric distribution of main shaft on the fixed disc 21 lateral wall, through four fixed lockholes 22 and fixed mounting that the symmetry was seted up on the fixed disc 21 on the drive wheel for the device is connected more stably, has improved the stability of device.

Wherein, slewing mechanism 6 includes arc spout 61, and arc spout 61 has been seted up to 3 protruding one sides of cam, and is provided with cylindrical gyro wheel 62 in the arc spout 61, through the cylindrical gyro wheel 62 of arc spout 61 internal rotation connection for through the cylindrical gyro wheel 62 that sets up in the use, reduce the frictional force with the bottom production of valve tappet, make the device function more stable, and prolonged the normal life of device.

Wherein, the 62 materials of cylindrical gyro wheel are made for elastic rubber, make the camshaft in the use through elastic rubber, have reduced the frictional force of cylindrical gyro wheel and valve tappet bottom to have certain shock attenuation effect, improved the practicality of device.

Wherein, arc spout 61 has been seted up respectively equally to protruding one side of cam one 3, cam two 4 and cam three 5, and all is provided with cylindrical gyro wheel 62 in a plurality of arc spout 61, through a plurality of cylindrical gyro wheels 62 that set up for the function of device is more stable, satisfies people's demand.

Wherein, stop gear 7 includes three through-hole 71, cam one 3, divide equally on two 4 and three 5 protruding lateral walls of cam and the cylindrical gyro wheel 62 and have respectively seted up through-hole 71, three through-hole 71 one end is all alternate and has been inserted the gim peg 72, gim peg 72 one end fixed mounting has screw post 73, and screw post 73 one end passes through-hole 71 other end threaded connection has nut 74, through gim peg 72 one end fixed connection screw post 73 and pass cam one 3, arc spout 61 lateral wall and cylindrical gyro wheel 62 that two 4 and three 5 lateral walls of cam set up are fixed with nut 74 threaded connection, and cylindrical gyro wheel 62 rotates with gim peg 72 to be connected, make and be convenient for install it and dismantle, the convenience of device has been improved.

Specifically, when the utility model is used, firstly, the threaded post 73 fixedly connected with one end of the fixing bolt 72 respectively passes through the side wall of the arc chute 61 on the cam I3, the cam II 4 and the cam III 5 and the cylindrical roller 62 arranged in the arc chute 61, and is fixedly connected with the screw cap 74 through the threaded post 73, and the through hole 71 arranged on the cylindrical roller 62 is rotationally connected with the fixed bolt 72, so that the friction force between the cylindrical roller 62 and the bottom end of the valve tappet is reduced through the cylindrical roller 62 in the use process, a certain damping effect is achieved, and the valve tappet is convenient to disassemble and replace, then, the driving wheel is fixedly arranged on the driving wheel through a fixed disc 21 fixedly arranged at one end of the main shaft 1 and four fixed lock holes 22 symmetrically formed on the fixed disc 21, the device is more stable in connection, and the stability of the device is improved until the whole working sequence is completed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a camshaft that resistance to wears, its characterized in that includes main shaft (1), fixed establishment (2) are installed to main shaft (1) one end, just cam one (3), cam two (4) and cam three (5) are installed respectively to equidistance on fixed establishment (2) one side main shaft (1), install slewing mechanism (6) on cam one (3), cam two (4) and cam three (5) respectively, install stop gear (7) on slewing mechanism (6).

2. The wear-resistant camshaft according to claim 1, wherein the fixing mechanism (2) comprises a fixing disc (21), the fixing disc (21) is fixedly sleeved at one end of the main shaft (1), four fixing locking holes (22) are formed in the fixing disc (21), and the four fixing locking holes (22) are symmetrically distributed on the side wall of the fixing disc (21) along the main shaft (1).

3. The wear-resistant camshaft according to claim 1, wherein the rotating mechanism (6) comprises an arc-shaped sliding groove (61), the arc-shaped sliding groove (61) is formed on one convex side of the first cam (3), and a cylindrical roller (62) is arranged in the arc-shaped sliding groove (61).

4. A wear-resistant camshaft as claimed in claim 3, wherein the cylindrical roller (62) material is an elastic rubber.

5. The abrasion-resistant camshaft according to claim 3, wherein the convex sides of the first cam (3), the second cam (4) and the third cam (5) are respectively provided with an arc-shaped sliding groove (61), and a plurality of the arc-shaped sliding grooves (61) are internally provided with cylindrical rollers (62).

6. The abrasion-resistant camshaft according to claim 1, wherein the limiting mechanism (7) comprises three through holes (71), the convex side walls of the first cam (3), the second cam (4) and the third cam (5) and the cylindrical roller (62) are respectively provided with the through holes (71), one end of each of the three through holes (71) is inserted with a fixing bolt (72), one end of each fixing bolt (72) is fixedly provided with a threaded column (73), and one end of each threaded column (73) penetrates through the other end of each through hole (71) to be connected with a nut (74) in a threaded manner.