CN212250797U - Eccentric distance adjustable centrifugal eccentric shaft - Google Patents
Eccentric distance adjustable centrifugal eccentric shaft Download PDFInfo
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- CN212250797U CN212250797U CN202020682947.6U CN202020682947U CN212250797U CN 212250797 U CN212250797 U CN 212250797U CN 202020682947 U CN202020682947 U CN 202020682947U CN 212250797 U CN212250797 U CN 212250797U
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- shaft
- eccentric shaft
- eccentric
- sliding groove
- sliding block
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Abstract
The utility model relates to a mechanical hydraulic control transmission technical field discloses an eccentricity adjustable centrifugal eccentric shaft, including: the middle part of the rotary table is provided with a sliding chute; the rotating shaft is arranged in the sliding groove in a penetrating manner; a sliding block is arranged on the rotating shaft; the sliding block is positioned in the sliding groove and can slide along the length direction of the sliding groove; the elastic piece is arranged in the sliding groove and is positioned between the rotating disc and the rotating shaft. The utility model has the advantages that the slide block of the eccentric shaft can slide along the sliding groove, so as to change the eccentricity of the eccentric shaft, and the effect of changing the eccentricity can be achieved by adjusting the rotating speed of the driving motor, and the eccentric shaft has simple structure, convenient use and wide application range; the requirement that the eccentric distance of the eccentric shaft needs to be changed because the whole machine cannot be disassembled under various special conditions is met.
Description
Technical Field
The utility model relates to a mechanical hydraulic control transmission technical field relates to an eccentricity adjustable centrifugal eccentric shaft.
Background
The eccentric shaft is a common mechanical part, is generally fixed on a motor rotating shaft through an eccentric hole, and performs cam motion when the motor is started, so that the eccentric shaft is widely applied to the fields of automobiles, engines, buildings, fire fighting, aviation, robots and the like.
Through market research discovery, the eccentric shaft cup joints the carousel in mostly being the pivot in the existing market, and carousel and pivot are integrative setting or components of a whole that can function independently setting. The existing eccentric shaft of the type has the problems that the eccentricity is not adjustable, or the eccentric shaft is adjustable but needs special tools, and has the defects of difficult replacement and maintenance, larger volume, poorer universality, complex operation during frequent eccentricity and the like. In some special cases, the problem that the eccentric shaft needs to be changed when the mechanical integral structure cannot be disassembled is that the eccentric distance of the eccentric shaft is very difficult to change.
Therefore, the eccentric shaft solves the problems that the eccentric distance of the eccentric shaft is accurate and quick to adjust, the maintenance is convenient, the universal performance is realized, no tool is needed to operate under special conditions, and the adjustment of the eccentric distance is simple and easy to realize.
SUMMERY OF THE UTILITY MODEL
The above is not enough to prior art, the utility model aims to solve the technical problem that a simple structure, convenient to use are proposed, and application scope is wide, satisfy can't disassemble mechanical whole and need change the eccentric shaft eccentric distance adjustable centrifugal eccentric shaft of eccentric shaft eccentric distance under various special circumstances.
The utility model provides a technical scheme that its technical problem adopted is, provides an eccentricity adjustable centrifugal eccentric shaft, including:
the middle part of the rotary table is provided with a sliding chute;
the rotating shaft is arranged in the sliding groove in a penetrating mode; a sliding block is arranged on the rotating shaft; the sliding block is positioned in the sliding groove and can slide along the length direction of the sliding groove;
and the elastic piece is arranged in the sliding groove and is positioned between the rotary disc and the rotating shaft.
Further, the carousel is cylindrical setting, just the spout passes the center of carousel.
Furthermore, a first protruding part is arranged on the rotating disc and is positioned in the sliding groove; a second protruding part is arranged at one end, close to the first protruding part, of the sliding block; one end of the elastic piece is sleeved on the first protruding portion, and the other end of the elastic piece is sleeved on the second protruding portion.
Furthermore, the elastic piece is a spring, one end of the spring abuts against the sliding block, and the other end of the spring abuts against the rotary disc.
Furthermore, a plane is arranged at one end of the sliding block close to the first protruding part and on the inner wall of the rotary disc close to the second protruding part;
the slider is kept away from the one end of first bellying, reaches the carousel is kept away from all be equipped with a cylinder on the inner wall of second bellying.
The shaft sleeve is detachably sleeved on the rotating shaft and is connected with the rotating shaft;
the shaft sleeve is in a hexagonal prism shape, a threaded hole is formed in the middle of the shaft sleeve, external threads matched with the threaded hole are arranged on the rotating shaft, and the rotating shaft is in threaded connection with the shaft sleeve.
Furthermore, the rotating shaft comprises the sliding block and two shaft bodies respectively arranged at the upper end and the lower end of the sliding block, and the external threads are arranged on the shaft bodies.
Furthermore, the width of the sliding block is equal to the diameter of the two shaft bodies, and the sliding block and the two shaft bodies are integrally formed.
Furthermore, a first through hole is formed in the rotating disc, and a second through hole is formed in the sliding block; and one end of the elastic piece is arranged in the first through hole, and the other end of the elastic piece is arranged in the second through hole.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
in the utility model, the eccentric shaft is composed of a rotary disc, a rotary shaft, an elastic part and a shaft sleeve, the rotary disc is provided with a chute, the rotary shaft is provided with a slide block matched with the chute, and the slide block can slide along the chute, thereby changing the eccentricity of the eccentric shaft, which is applicable to various scenes needing to change the eccentricity, and meets the requirement that the mechanical integrity can not be disassembled under various special conditions and the eccentricity of the eccentric shaft needs to be changed, in particular to a hydraulic plunger device, such as a high-pressure pump, a jack, a shearing clamp, a punching machine and other fields; specifically, in the actual use process, the rotating shaft is driven by the motor, the rotating speed of the motor directly influences the centrifugal force of the turntable, the centrifugal force of the turntable directly determines the size of the eccentric distance, the rotating speed of the motor can be measured and controlled, the change size of the eccentric distance caused by the change of the rotating speed of the motor can be calculated, the adjustment of the eccentric distance can be realized by adjusting the rotating speed of the motor, other tools are not needed, the operation is simple, feasible and visual, manpower and material resources are saved, and the production efficiency is improved.
In the utility model, a spring is arranged between the slide block and the rotary table, and the elasticity of the spring enables the center of the rotary table to coincide with the center of the rotary shaft in a natural state; when the rotary table is in a working state, the rotary table is driven to rotate by the rotating shaft, the center of the rotary table deviates from the center of the rotating shaft under the action of centrifugal force to be in an eccentric state, and the spring can also reduce the impact force between the sliding block and the rotary table.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is an exploded view of the whole;
FIG. 4 is a schematic structural view of a turntable;
fig. 5 is a schematic plan view of the turntable.
In the figure, the position of the upper end of the main shaft,
1. a turntable; 10. a chute; 11. a first boss portion; 120. a plane; 121. a cylindrical surface;
2. a rotating shaft; 20. a slider; 21. a shaft body; 201. a second boss portion;
3. an elastic member;
4. a shaft sleeve; 40. a threaded bore.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, an eccentric shaft of a centrifugal type having an adjustable eccentricity, comprises: the rotary table comprises a rotary table 1, a rotating shaft 2, an elastic piece 3 and a shaft sleeve 4.
As shown in fig. 4-5, a sliding groove 10 is formed in the middle of the turntable 1; specifically, carousel 1 is cylindrical setting, just spout 10 passes the center of carousel 1, in natural state, guarantees that pivot 2 can cross the center of carousel 1.
As shown in fig. 3, the rotating shaft 2 is inserted into the sliding groove 10; a sliding block 20 is arranged on the rotating shaft 2; the sliding block 20 is positioned in the sliding groove 10 and can slide along the length direction of the sliding groove 10; therefore, the length of the slider 20 is smaller than that of the chute 10.
And the elastic piece 3 is arranged in the sliding groove 10 and is positioned between the rotating disc 1 and the rotating shaft 2. Specifically, the elastic member 3 is a spring, one end of the spring abuts against the slider 20, and the other end of the spring abuts against the turntable 1.
A first protruding part 11 is arranged on the turntable 1, and the first protruding part 11 is located in the sliding groove 10; a second convex part 201 is arranged at one end of the slide block 20 close to the first convex part 11; one end of the elastic element 3 is sleeved on the first protruding portion 11, and the other end of the elastic element 3 is sleeved on the second protruding portion 201. Since the elastic member 3 is a spring, the first boss 11 and the second boss 201 can be used for positioning the spring to ensure that the spring is not jumbled.
Another way of achieving the spring positioning is: a first through hole (not marked in the figure) is arranged on the turntable 1, and a second through hole (not marked in the figure) is arranged on the sliding block 20; and one end of the elastic element 3 is arranged in the first through hole, and the other end of the elastic element 3 is arranged in the second through hole, namely, the first lug boss 11 and the second lug boss 201 in the first scheme positioning scheme of the spring are replaced by the first through hole and the second through hole.
In the use process, in a natural state, the elastic force of the spring enables the center of the turntable 1 to coincide with the center of the rotating shaft 2; when the turntable works, the turntable 1 is driven to rotate by the rotating shaft 2, and the center of the turntable 1 deviates from the center of the rotating shaft 2 under the action of centrifugal force to be in an eccentric state; wherein the spring also reduces the impact force between the slider 20 and the turntable 1.
Preferably, a plane 120 is arranged on one end of the sliding block 20 close to the first protruding part 11 and on the inner wall of the turntable 1 close to the second protruding part 201; first bellying 11 sets up on the plane 120 on carousel 1, and second bellying 201 sets up on the plane 120 on slider 20, and the plane is convenient to process and is fixed a position, slider 20 keeps away from the one end of first bellying 11, and carousel 1 keeps away from all be equipped with a cylinder 121 on the inner wall of second bellying 201, when pivot 2 and carousel 1 were in natural state, the center coincidence between them, cylinder 121 on the slider 20 laminating on cylinder 121 on carousel 1, cylinder 121 also can prevent stress concentration.
The eccentric shaft also comprises a shaft sleeve 4, and the shaft sleeve 4 is detachably sleeved on the rotating shaft 2 and is connected with the rotating shaft 2; the shaft sleeve 4 is in a hexagonal prism shape, a threaded hole 40 is formed in the middle of the shaft sleeve 4, external threads matched with the threaded hole 40 are formed in the rotating shaft 2, and the rotating shaft 2 is in threaded connection with the shaft sleeve 4. The outer hexagonal design of axle sleeve 4 is conveniently connected with the motor for the motor can drive pivot 1 through axle sleeve 4 and rotate.
Specifically, the rotating shaft 2 includes the sliding block 20 and two shaft bodies 21 respectively disposed at the upper and lower ends of the sliding block 20, and the external thread is disposed on the shaft bodies 21. The width of the sliding block 20 is equal to the diameter of the two shaft bodies 21, and the sliding block 20 and the two shaft bodies 21 are integrally formed.
Generally speaking, the eccentric shaft of the scheme is composed of a rotary table 1, a rotary shaft 2, an elastic part 3 and a shaft sleeve 4, wherein the rotary table 1 is provided with a chute 10, the rotary shaft 2 is provided with a slide block 20 matched with the chute 10, and the slide block 20 can slide along the chute 10, so that the eccentricity of the eccentric shaft is changed, the eccentric shaft device is suitable for various scenes needing to be changed, and the requirements that the eccentric distance of the eccentric shaft needs to be; specifically, in the actual use process, the rotating shaft 2 is driven by the motor, the rotating speed of the motor directly influences the centrifugal force of the turntable, the centrifugal force of the turntable 1 directly determines the eccentric distance, the rotating speed of the motor can be measured and controlled, the change of the eccentric distance caused by the change of the rotating speed of the motor can be calculated, the adjustment of the eccentric distance can be realized by adjusting the rotating speed of the motor, other tools are not needed, the operation is simple, feasible and visual, manpower and material resources are saved, and the production efficiency is improved.
The sliding block of the eccentric shaft can slide along the sliding groove, so that the eccentricity of the eccentric shaft is changed, the effect of changing the eccentricity can be achieved by adjusting the rotating speed of the driving motor, and the eccentric shaft is simple in structure, convenient to use and wide in application range; the requirement that the eccentric distance of the eccentric shaft needs to be changed because the whole machine cannot be disassembled under various special conditions is met.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. An eccentric shaft of centrifugal type with adjustable eccentricity, characterized in that, including:
the middle part of the rotary table is provided with a sliding chute;
the rotating shaft is arranged in the sliding groove in a penetrating mode; a sliding block is arranged on the rotating shaft; the sliding block is positioned in the sliding groove and can slide along the length direction of the sliding groove;
and the elastic piece is arranged in the sliding groove and is positioned between the rotary disc and the rotating shaft.
2. The eccentric shaft with adjustable eccentricity of claim 1, wherein the rotating disc is cylindrical and the sliding groove passes through the center of the rotating disc.
3. The eccentric shaft with adjustable eccentricity of claim 1 or 2, wherein the rotating disc is provided with a first protruding part, and the first protruding part is located in the sliding groove; a second protruding part is arranged at one end, close to the first protruding part, of the sliding block; one end of the elastic piece is sleeved on the first protruding portion, and the other end of the elastic piece is sleeved on the second protruding portion.
4. The eccentric shaft with adjustable eccentricity of claim 3, wherein the elastic member is a spring, and one end of the spring abuts against the sliding block and the other end of the spring abuts against the rotating disk.
5. The eccentric shaft with adjustable eccentricity of claim 3, wherein a flat surface is formed on the inner wall of the rotating disc near the second boss and the end of the sliding block near the first boss;
the slider is kept away from the one end of first bellying, reaches the carousel is kept away from all be equipped with a cylinder on the inner wall of second bellying.
6. The eccentric shaft with adjustable eccentricity of claim 1, further comprising a sleeve detachably fitted over the shaft and connected to the shaft;
the shaft sleeve is in a hexagonal prism shape, a threaded hole is formed in the middle of the shaft sleeve, external threads matched with the threaded hole are arranged on the rotating shaft, and the rotating shaft is in threaded connection with the shaft sleeve.
7. The eccentric shaft of claim 6, wherein said shaft comprises said sliding block and two shafts respectively provided at upper and lower ends of said sliding block, said external thread being provided on said shafts.
8. The eccentric shaft of claim 7, wherein said slide block has a width equal to the diameter of said shaft bodies, and said slide block is formed integrally with said shaft bodies.
9. The eccentric shaft of claim 1, wherein said rotating disk has a first through hole, and said sliding block has a second through hole; and one end of the elastic piece is arranged in the first through hole, and the other end of the elastic piece is arranged in the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682947.6U CN212250797U (en) | 2020-04-28 | 2020-04-28 | Eccentric distance adjustable centrifugal eccentric shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682947.6U CN212250797U (en) | 2020-04-28 | 2020-04-28 | Eccentric distance adjustable centrifugal eccentric shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212250797U true CN212250797U (en) | 2020-12-29 |
Family
ID=73996155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020682947.6U Active CN212250797U (en) | 2020-04-28 | 2020-04-28 | Eccentric distance adjustable centrifugal eccentric shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212250797U (en) |
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2020
- 2020-04-28 CN CN202020682947.6U patent/CN212250797U/en active Active
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