CN202811278U - Eccentric wheel with dual-anti-loose structure - Google Patents
Eccentric wheel with dual-anti-loose structure Download PDFInfo
- Publication number
- CN202811278U CN202811278U CN 201220458942 CN201220458942U CN202811278U CN 202811278 U CN202811278 U CN 202811278U CN 201220458942 CN201220458942 CN 201220458942 CN 201220458942 U CN201220458942 U CN 201220458942U CN 202811278 U CN202811278 U CN 202811278U
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- CN
- China
- Prior art keywords
- eccentric wheel
- loose structure
- jackscrew
- shaft
- cylindrical boss
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses an eccentric wheel with a dual-anti-loose structure. The eccentric wheel comprises an eccentric wheel, wherein a shaft hole corresponding to a rotary shaft of a motor is formed in the eccentric wheel. The eccentric wheel is characterized in that torque transfer between the eccentric wheel and the rotary shaft of the motor is realized through a flat key and a key slot which are matched with each other in a concave-convex manner, the two sides of the end part of the rotary shaft are provided with two deflection positions, jack screws are symmetrically arranged at the two sides of a center of the key slot, and the axial position of the eccentric wheel is fixed in a manner that the jack screws jack the two deflection positions of the rotary shaft. According to the eccentric wheel with the dual-anti-loose structure, the structural anti-loose effect is good, the structure is simple, the symmetry is good, the machining is easy, the assembly/disassembly is convenient, and meanwhile, the reliability of products is improved, so that the eccentric wheel with the dual-anti-loose structure has a good value for popularization.
Description
Technical field
The utility model relates to the air compressor technical field, relates in particular a kind of two anti-loose structures of eccentric wheel of compressor.
Background technique
Air compressor be by blade or rotor rotatablely move or the to-and-fro motion of piston with air compressing in gas tank, and when needed exhaust.The eccentric wheel of traditional oilless compressor is socketed in the rotating shaft, utilizes jackscrew that eccentric wheel is fixed in the rotating shaft and (comprises axial restraint and radially fixing), and this means of fixation has also comprised dual mode: 1. the flat position of jackscrew is arranged in the rotating shaft; 2. in the rotating shaft without the flat position of jackscrew, two kinds of above eccentric wheel means of fixation to rated working pressure 0kpa ~ 500 kpa or less be practical without oily swing air compressor.But concerning the swing oilless compressor of rated working pressure＞500 kpa, two kinds of traditional means of fixation effects recited above are just bad, compressor boost and lasting high-pressure service after, jackscrew is easy to become flexible, perhaps whole eccentric wheel assembly slides along the shaft circumference direction, and the consequence that causes mainly contains: first affects performance; Second destroys rotating shaft and surface finishment, causes eccentric wheel or eccentric wheel assembly dismounting difficulty; The 3rd in operation process, interferes phenomenon with other part, destroys other component; The 4th exists potential safety hazard.
Summary of the invention
The purpose of this utility model is exactly provide for the deficiency that solves prior art a kind of not only easy for installation, safe and reliable, and simple and practical two anti-loose structure eccentric wheels.
The utility model is to adopt following technical solution to realize above-mentioned purpose: a kind of pair of anti-loose structure eccentric wheel, comprise eccentric wheel, be provided with the axis hole corresponding with machine shaft in the eccentric wheel, it is characterized in that, between described eccentric wheel and the machine shaft by the concavo-convex flat key that cooperates and keyway transmitting torque, the both sides, end of rotating shaft are provided with flat position, and keyway center bilateral symmetry is provided with jackscrew, and jackscrew withstands on the axial position of two flat fixed eccentrics that come up of rotating shaft.
As further specifying of such scheme: described eccentric wheel comprises the cylindrical boss that eccentric wheel main body and one side arrange, the axis hole corresponding with machine shaft is vertical to be run through in this cylindrical boss and the eccentric wheel main body, and the both sides of eccentric wheel main body are provided with the jackscrew tapped hole that jackscrew is installed.
Cover has plural connecting rod bearing on the described cylindrical boss, and the two ends of connecting rod bearing are provided with shaft block ring, and shaft block ring is connected on the cylindrical boss.
Described flat key is arranged in the eccentric axis hole, and keyway is arranged on the machine shaft.
Described rotating shaft is provided with step more than the two-stage along its axial direction, and flat position is arranged on the secondary step.
The beneficial effect that the utility model adopts above-mentioned technical solution to reach is:
The utility model adopts flat key that eccentric wheel or eccentric wheel assembly and machine shaft are linked up, come transmitting torque by flat key, because linking bond has been born all torques, can not make the phenomenon that jackscrew is loosening or eccentric wheel assembly integral body is slided along the shaft circumference direction because overcoming the moment of torsion that pressure acting produces, thereby reach firmly purpose of eccentric wheel or its module position, this structure anti-loosing effect is good, simple in structure, symmetrical good, easy processing, mounting or dismounting are convenient, also improved the reliability of product simultaneously.
Description of drawings
Fig. 1 is eccentric wheel perspective view of the present utility model;
Fig. 2 is eccentric wheel structure schematic representation of the present utility model;
Fig. 3 is the sectional view of the A-A of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is turning shaft structure schematic representation of the present utility model;
Fig. 6 is the A-A sectional view of Fig. 5;
Fig. 7 is the B-B sectional view of Fig. 5;
Fig. 8 the utility model eccentric wheel assembly cooperates the assembling schematic representation with rotating shaft;
Fig. 9 is the C-C sectional view of Fig. 8.
Description of reference numerals: 1, eccentric wheel 2, machine shaft 3, axis hole 4, flat key 5, keyway 6, flat position 7, jackscrew 8, cylindrical boss 9, jackscrew tapped hole 10, connecting rod bearing 11, shaft block ring 12, machine shaft.
Embodiment
Such as Fig. 1-shown in Figure 9, a kind of pair of anti-loose structure eccentric wheel of the utility model, comprise eccentric wheel 1, be provided with the axis hole 3 corresponding with machine shaft 2 in the eccentric wheel 1, between eccentric wheel 1 and the machine shaft 2 by the concavo-convex flat key that cooperates 4 and keyway 5 transmitting torques, the both sides, end of rotating shaft 2 are provided with flat position 6, and keyway center bilateral symmetry is provided with jackscrew 7, and jackscrew 7 withstands on the axial position of fixed eccentric on the two flat positions 6 of rotating shaft 2.Wherein, eccentric wheel comprises the cylindrical boss 8 that eccentric wheel main body and one side arrange, and the axis hole corresponding with machine shaft is vertical to be run through in this cylindrical boss and the eccentric wheel main body, and the both sides of eccentric wheel main body are provided with the jackscrew tapped hole 9 that jackscrew is installed.Cover has two connecting rod bearing 10 on the cylindrical boss, and the two ends of connecting rod bearing are provided with shaft block ring 11, and shaft block ring 11 is connected on the cylindrical boss.In the present embodiment, flat key is arranged in the eccentric axis hole, and keyway is arranged on the machine shaft 12.Rotating shaft is provided with step more than the two-stage along its axial direction, and flat position is arranged on the secondary step.
In the using process, utilize flat key that eccentric wheel and assembly and rotating shaft are linked up transmitting torque; Utilize on the eccentric wheel about centrosymmetric two the urgent jackscrews of top wire hole of keyway, jackscrew withstands on rotating shaft about the come up axial position of fixed eccentric and assemblies of the flat position of keyway centrosymmetric two, can not make the phenomenon that jackscrew is loosening or eccentric wheel assembly integral body is slided along the shaft circumference direction because overcoming the moment of torsion that the pressure acting produces.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (5)
1. two anti-loose structure eccentric wheel, comprise eccentric wheel, be provided with the axis hole corresponding with machine shaft in the eccentric wheel, it is characterized in that, between described eccentric wheel and the machine shaft by the concavo-convex flat key that cooperates and keyway transmitting torque, the both sides, end of rotating shaft are provided with flat position, and keyway center bilateral symmetry is provided with jackscrew, and jackscrew withstands on the axial position of two flat fixed eccentrics that come up of rotating shaft.
2. a kind of pair of anti-loose structure eccentric wheel according to claim 1, it is characterized in that, described eccentric wheel comprises the cylindrical boss that eccentric wheel main body and one side arrange, the axis hole corresponding with machine shaft is vertical to be run through in this cylindrical boss and the eccentric wheel main body, and the both sides of eccentric wheel main body are provided with the jackscrew tapped hole that jackscrew is installed.
3. a kind of pair of anti-loose structure eccentric wheel according to claim 2 is characterized in that, cover has plural connecting rod bearing on the described cylindrical boss, and the two ends of connecting rod bearing are provided with shaft block ring, and shaft block ring is connected on the cylindrical boss.
4. a kind of pair of anti-loose structure eccentric wheel according to claim 1 is characterized in that described flat key is arranged in the eccentric axis hole, and keyway is arranged on the machine shaft.
5. a kind of pair of anti-loose structure eccentric wheel according to claim 1 is characterized in that, described rotating shaft is provided with step more than the two-stage along its axial direction, and flat position is arranged on the secondary step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458942 CN202811278U (en) | 2012-09-11 | 2012-09-11 | Eccentric wheel with dual-anti-loose structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458942 CN202811278U (en) | 2012-09-11 | 2012-09-11 | Eccentric wheel with dual-anti-loose structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811278U true CN202811278U (en) | 2013-03-20 |
Family
ID=47870162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458942 Expired - Fee Related CN202811278U (en) | 2012-09-11 | 2012-09-11 | Eccentric wheel with dual-anti-loose structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453108A (en) * | 2013-09-05 | 2013-12-18 | 浙江省平湖市工具厂 | Eccentric cam of screw tap relief grinding machine |
-
2012
- 2012-09-11 CN CN 201220458942 patent/CN202811278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453108A (en) * | 2013-09-05 | 2013-12-18 | 浙江省平湖市工具厂 | Eccentric cam of screw tap relief grinding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170309 Address after: Begonia Road Danzao Town, Nanhai District south of 528216 national eco industrial demonstration park in Guangdong province Foshan City Office Building No. 3 room 103 Patentee after: Magnificent high-tech new material Co., Ltd is full of in Guangdong Address before: 528000 Chancheng, Guangdong Province, South Road, No. 1, No. Patentee before: Foshan Guangshun Electrical Equipment Co., Ltd. Patentee before: Guangdong Guangshun New Energy Power Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20160911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |