CN210371602U

CN210371602U - Eccentric shaft for mechanical device

Info

Publication number: CN210371602U
Application number: CN201920439084.7U
Authority: CN
Inventors: 李韶兴
Original assignee: Shaoguan Defeng Machinery Co ltd
Current assignee: Shaoguan Defeng Machinery Co ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-04-21
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses an eccentric shaft for mechanical device, including eccentric shaft section, axis body, transmission shaft section, axis body center and edge are equipped with penetrability screw two, screw one respectively, and the axis body is close to eccentric shaft section, transmission shaft section one end and all is equipped with three-jaw chuck one, a three-jaw chuck fixed connection is inside screw two, screw one, and screw two, the inside rigid coupling of screw have draw-in groove one, eccentric shaft section, transmission shaft section all are located the axis body both ends and through a draw-in groove joint, the transmission shaft section includes transmission shaft front end and transmission shaft rear end, and the one end of transmission shaft front end inwards extends inside the entering transmission shaft rear end, eccentric shaft section includes eccentric shaft front end and eccentric shaft rear end, and the one end of eccentric shaft front end inwards extends inside the entering eccentric shaft rear end. A eccentric shaft for mechanical device, effectual solved in the actual operation eccentric shaft wearing and tearing back can only change the eccentric shaft, cause the problem of wasting of resources.

Description

Eccentric shaft for mechanical device

Technical Field

The utility model relates to an eccentric shaft field, in particular to eccentric shaft for mechanical device.

Background

The eccentric shaft is a bearing with the outer circle and the outer circle of a part or the axis of the outer circle and an inner hole being parallel but not coincident and deviating a distance, the eccentric shaft is generally fixed on a motor rotating shaft through a transmission shaft section and does cam motion when the motor is started, so the eccentric shaft is widely applied to automobiles, engines, pumps and the like, the processing of eccentric parts is a difficult point in machining, a three-jaw chuck and a four-jaw chuck are generally adopted for processing the eccentric bearing at present and are processed on a common machine tool, the manufacturing cost of the eccentric shaft is high, the price is high, the eccentric shaft applied to the market at present is mostly a whole, when the eccentric shaft is used for a long time, after continuous abrasion, the maintenance can only be carried out by slightly cutting through the machine tool, the service life after the maintenance is short, only the whole body can be replaced after the damage, and the waste of.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide an eccentric shaft for a mechanical device, which can effectively solve the problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an eccentric shaft for a mechanical device comprises an eccentric shaft section, a shaft body and a transmission shaft section, wherein the center and the edge of the shaft body are respectively provided with a screw hole II and a screw hole I, the screw hole I and the screw hole II are close to the eccentric shaft section, a three-jaw chuck I is fixedly connected in one end of the transmission shaft section, a clamping groove I is respectively arranged in the screw hole II and the screw hole I, the eccentric shaft section and the transmission shaft section are respectively positioned at two ends of the shaft body, the eccentric shaft section and the transmission shaft section respectively penetrate through the screw hole II and the screw hole I and extend into the shaft body, the eccentric shaft section and the transmission shaft section are respectively clamped with the shaft body through a groove matched with the clamping groove I, the transmission shaft section comprises a transmission shaft front end and a transmission shaft rear end, one end of the transmission shaft front end extends inwards into the transmission shaft rear end, the eccentric shaft section comprises an eccentric shaft front end and an eccentric shaft rear end, and one end of the front end of the eccentric shaft extends inwards into the rear end of the eccentric shaft.

Preferably, the front end of the transmission shaft and the front end of the eccentric shaft extend into the rear end of the transmission shaft and one end of the eccentric shaft extending into the rear end of the eccentric shaft are provided with a first groove.

Preferably, the inner sides of the rear ends of the transmission shaft and the eccentric shaft close to one end of the shaft body are respectively fixedly connected with springs, the other ends of the springs are fixedly connected with a base, the other ends of the rear ends of the transmission shaft and the eccentric shaft are respectively fixedly connected with a second three-jaw chuck, and the front ends of the transmission shaft and the eccentric shaft penetrate through the second three-jaw chuck.

Preferably, the two ends of the edge of the base are provided with second bosses.

Preferably, the other side of the base connected with the spring is provided with a first boss matched with the first groove.

Preferably, the inner walls of the rear end of the eccentric shaft and the rear end of the transmission shaft are provided with second grooves which can be matched with the second bosses.

Compared with the prior art, the utility model discloses following beneficial effect has: this an eccentric shaft for mechanical device, eccentric shaft section or transmission shaft section use for a long time in no time and send the maintenance after being worn and torn, can be through three-jaw chuck two control shaft section front end outwards extend, lathe cut volume has been increased, make the maintenance more thorough, service life has been prolonged, and through setting up in eccentric shaft section, recess one of transmission shaft section cooperates with boss on the axis body, the arbitrary shaft section of dismantlement that can be quick after loosening three-jaw chuck one, realized which section shaft section damages and changes where, the dead plate that the eccentric shaft just must whole axle be changed together in case of damaging in the operation has been solved, the waste of fund and resource has been avoided.

Drawings

Fig. 1 is a cross-sectional view of an overall structure of an eccentric shaft for a mechanical device according to the present invention;

fig. 2 is a left side view of an eccentric shaft body of an eccentric shaft for a mechanical device according to the present invention;

fig. 3 is a right side view of an eccentric shaft body of an eccentric shaft for a mechanical device according to the present invention;

fig. 4 is a schematic view of an eccentric shaft base for a mechanical device according to the present invention;

fig. 5 is a schematic view of the front end face of the eccentric shaft for a mechanical device according to the present invention.

In the figure: 1. an eccentric shaft section; 2. a shaft body; 3. a drive shaft section; 4. a first clamping groove; 5. a first three-jaw chuck; 6. the front end of the eccentric shaft; 7. the back end of the eccentric shaft; 8. a second three-jaw chuck; 9. a base; 10. a first groove; 11. a first boss; 12. a spring; 13. a second boss; 14. a second groove; 15. the rear end of the transmission shaft; 16. The front end of the transmission shaft; 17. a first screw hole; 18. and a second screw hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

1-5, an eccentric shaft for a machine, characterized by: the eccentric shaft comprises an eccentric shaft section 1, a shaft body 2 and a transmission shaft section 3, wherein the center and the edge of the shaft body 2 are respectively provided with a screw hole II 18 and a screw hole I17, the screw hole I17 and the screw hole II 18 are close to the eccentric shaft section 1, one end of the transmission shaft section 3 is internally and fixedly connected with a three-jaw chuck I5, the screw hole II 18 and the screw hole I17 are respectively internally provided with a clamping groove I4, the eccentric shaft section 1 and the transmission shaft section 3 are respectively positioned at two ends of the shaft body 2, the eccentric shaft section 1 and the transmission shaft section 3 respectively penetrate through the three-jaw chuck I5 and extend into the shaft body 2 through the clamping groove I4, the transmission shaft section 1 and the transmission shaft section 3 are respectively clamped with the shaft body 2 through a groove matched with the clamping groove I4, the transmission shaft section 3 comprises a transmission shaft front end 16 and a transmission shaft rear end 15, one end of the transmission shaft front end 16 extends inwards into the transmission shaft rear end 15, the eccentric shaft, one end of the eccentric shaft front end 6 extends inwards into the eccentric shaft rear end 7;

one end of the front end 16 of the transmission shaft, one end of the front end 6 of the eccentric shaft, which extend into the rear end 15 of the transmission shaft and one end of the rear end 7 of the eccentric shaft, are provided with a first groove 10; the inner sides of the rear end 15 of the transmission shaft and the rear end 7 of the eccentric shaft close to the shaft body 2 are respectively fixedly connected with a spring 12, the other end of the spring 12 is fixedly connected with a base 9, the other ends of the rear end 15 of the transmission shaft and the rear end 7 of the eccentric shaft are respectively fixedly connected with a second three-jaw chuck 8, and the front end 16 of the transmission shaft and the front end 6 of the eccentric shaft penetrate through the second three-jaw chuck 8; two ends of the edge of the base 9 are provided with second bosses 13; the other side of the base 9 connected with the spring 12 is provided with a boss I11 which can be matched with the groove I10; the inner walls of the rear end 7 of the eccentric shaft and the rear end 15 of the transmission shaft are provided with a second groove 14 which can be matched with the second boss 13.

It should be noted that, the utility model relates to an eccentric shaft for mechanical device, in use propeller shaft section 3 is fixed on motor rotation axis usually, it is rotatory to drive propeller shaft section 3 through motor rotation axis, propeller shaft section 3 drives 2 rotations of axis body and makes eccentric shaft section 1 be reciprocal eccentric motion, thereby take machinery to be cam motion, through long-time use, when the eccentric shaft constantly weares and teares out and to put into the lathe and carry out cutting process again with the eccentric shaft, the life of extension eccentric shaft, when cutting process again, maintenance person only need confirm which shaft section that need cut again and need cut how much, if: when needing to cut eccentric shaft section 1, as long as loosen three-jaw chuck two 8 earlier, outwards pull out the length that needs the cutting with eccentric shaft front end 6, rotatory eccentric shaft front end 6, make base 9 support the bottom of eccentric shaft front end 6 because of the tension of spring 12, hold recess one 10 until boss 11, tighten three-jaw chuck two 8 again, put into the lathe cutting with the eccentric shaft, the quick maintenance of eccentric shaft has been realized promptly, and when the too big unable maintenance of eccentric shaft wearing and tearing can only be changed, also only need confirm the position that needs to be changed earlier, if: when the eccentric shaft section 1 needs to be replaced, the eccentric shaft section 1 is taken out only by loosening the three-jaw chuck one 5, a new eccentric shaft section 1 is replaced, the groove at the rear end 7 of the eccentric shaft is aligned to the clamping groove one 4 and then placed in the clamping groove one 4, and the three-jaw chuck one 5 is screwed down.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An eccentric shaft for a mechanical device, characterized by: comprises an eccentric shaft section (1), a shaft body (2) and a transmission shaft section (3), wherein the center and the edge of the shaft body (2) are respectively provided with a screw hole II (18) and a screw hole I (17), the screw hole I (17) and the screw hole II (18) are close to the eccentric shaft section (1), one end of the transmission shaft section (3) is fixedly connected with a three-jaw chuck I (5), the screw hole II (18) and the screw hole I (17) are respectively internally provided with a clamping groove I (4), the eccentric shaft section (1) and the transmission shaft section (3) are respectively positioned at two ends of the shaft body (2), the eccentric shaft section (1) and the transmission shaft section (3) respectively penetrate through the three-jaw chuck I (5) and extend into the inside of the shaft body (2) through the screw hole II (18) and the screw hole I (17), the eccentric shaft section (1) and the transmission shaft section (3) are respectively clamped with the shaft body (2) through a groove matched with the clamping groove I (4), the transmission shaft section (3) comprises a transmission shaft front, and one end of the front end (16) of the transmission shaft extends inwards to enter the rear end (15) of the transmission shaft, the eccentric shaft section (1) comprises an eccentric shaft front end (6) and an eccentric shaft rear end (7), and one end of the eccentric shaft front end (6) extends inwards to enter the inner part of the eccentric shaft rear end (7).

2. An eccentric shaft for a machine according to claim 1, characterized in that: one end of the front end (16) of the transmission shaft and one end of the front end (6) of the eccentric shaft, which extend into the rear end (15) of the transmission shaft and one end of the rear end (7) of the eccentric shaft, are provided with a first groove (10).

3. An eccentric shaft for a machine according to claim 2, characterized in that: the transmission shaft rear end (15) and the eccentric shaft rear end (7) are close to the inner side of one end of the shaft body (2) and are respectively fixedly connected with a spring (12), the other end of the spring (12) is fixedly connected with a base (9), the other ends of the transmission shaft rear end (15) and the eccentric shaft rear end (7) are respectively fixedly connected with a second three-jaw chuck (8), and the transmission shaft front end (16) and the eccentric shaft front end (6) are respectively penetrated through the second three-jaw chuck (8).

4. An eccentric shaft for a mechanical device according to claim 3, characterized in that: and bosses II (13) are arranged at two ends of the edge of the base (9).

5. An eccentric shaft for a mechanical device according to claim 3, characterized in that: the other side of the base (9) connected with the spring (12) is provided with a first boss (11) which can be matched with the first groove (10).

6. An eccentric shaft for a machine according to claim 4, characterized in that: and the inner walls of the rear end (7) of the eccentric shaft and the rear end (15) of the transmission shaft are provided with a second groove (14) which can be matched with the second boss (13).