CN203670132U - Double-cylinder inflator pump with eccentric wheel - Google Patents
Double-cylinder inflator pump with eccentric wheel Download PDFInfo
- Publication number
- CN203670132U CN203670132U CN201420053510.0U CN201420053510U CN203670132U CN 203670132 U CN203670132 U CN 203670132U CN 201420053510 U CN201420053510 U CN 201420053510U CN 203670132 U CN203670132 U CN 203670132U
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- eccentric wheel
- eccentric
- diameter section
- plane
- hole
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Abstract
The utility model discloses a double-cylinder inflator pump with an eccentric wheel, and relates to an inflator pump. At present, the perpendicularity between the rear spindle of the inflator pump and the eccentric wheel is bad, and the product quality can not be guaranteed. The inflator pump is characterized in that the extension end of a motor spindle is in a ladder shape, the small diameter section is located outside a large diameter section, and a plane is formed by the scrap edge of the single side of the small diameter section; the spindle hole of the eccentric wheel is matched up with the small diameter section of the motor spindle, the spindle hole of the eccentric wheel comprises a plane and an arc surface connected with the plane, and the arc surface of the spindle hole of the eccentric wheel is matched up with the arc surface of the small diameter section of the motor spindle; the eccentric wheel is provided with a threaded hole which is vertically intercrossed with the plane of the spindle hole, a fastening screw is arranged in the threaded hole, and the head of the fastening screw can be propped against the plane of the motor spindle. According to the inflator pump, the ball friction of a piston ring can be reduced, the service life can be prolonged, the power consumption can be reduced, the energy can be saved, the product quality can be greatly improved, and the economical benefit of enterprises can be promoted.
Description
Technical field
The utility model relates to a kind of gas-filled pump.
Background technique
Electric machine main shaft quality plays key effect to whole quality of product.In existing gas-filled pump motor, overhanging section of main shaft is isometrical d-axis, Qi Unit facing cut limit, the arc surface of eccentric wheel fastening screw trip bolt and electric machine main shaft offsets, because main shaft two terminal circle facing cut limit face has error, the surface of contact of fastening screw trip bolt and main shaft circular arc is little, when unbalance stress, main shaft deflects, out of plumb between main shaft and eccentric wheel, cause connecting rod, piston, piston ring and cylinder cover inner hole break-in are inhomogeneous, the easily serious piston ring lopsided wear that produces, reduce air pump pressure, reduce working life, increasing power consumption wastes energy, quality of product can not be guaranteed, increase anti-revisionist rate and cost of production.
Model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is that prior art scheme is improved and improved, and provides one to be with eccentric double-cylinder inflating pump, to reach the object that improves quality of fit.For this reason, the utility model is taked following technological scheme.
One is with eccentric double-cylinder inflating pump, comprise motor, eccentric wheel, cylinder, described motor is connected with eccentric spindle hole by electric machine main shaft, described eccentric wheel is connected with air cylinder connecting rod by eccentric shaft, it is characterized in that: the overhanging end of electric machine main shaft is stepped, comprise that reduced diameter section and diameter are greater than the enlarged diameter section of reduced diameter section, the shaft shoulder forming between reduced diameter section and enlarged diameter section can with eccentric inner side surface offset to limit eccentric shaft to displacement, described reduced diameter section is positioned at the outside of enlarged diameter section, the one-sided trimming of described reduced diameter section forms plane, described eccentric wheel spindle hole and the reduced diameter section of electric machine main shaft match, the arc surface that eccentric wheel spindle hole comprises plane and is connected with plane, and the arc surface of eccentric wheel spindle hole and electric machine main shaft reduced diameter section arc surface match, described eccentric wheel is provided with the tapped hole intersecting vertically with spindle hole plane, in described tapped hole, is provided with fastening screw trip bolt, and the head of described fastening screw trip bolt can offset with the plane of electric machine main shaft.Gas-filled pump electric machine main shaft outer end reduced, eccentric wheel endoporus also dwindles simultaneously, in assembling process, eccentric wheel is directly against on the main shaft shaft shoulder, Zhe Yang Solution determined concentricity and perpendicularity, main shaft two terminal circle cambered surface directly contacts with eccentric wheel spindle hole arc surface, fastening screw trip bolt end face directly contacts fixedly and tightens with the plane on main shaft milling limit, because arc surface has automatic capturing function, guarantee concentricity and perpendicularity between main shaft and eccentric shaft, make in the course of the work connecting rod, piston, piston ring and cylinder cover inner hole break-in are even, reduce piston ring ball wear and increase pressure, increase the service life, reduce power consumption energy saving, quality of product is improved greatly, increase Business Economic Benefit.
As the further of technique scheme improved and supplemented, the utility model also comprises following additional technical feature.
Described eccentric wheel is provided with eccentric shaft joint, and described eccentric shaft joint is offered eccentric wheel axis hole, in described eccentric wheel axis hole, inserts eccentric shaft.
Described eccentric wheel is semicircle plate-like, comprises plane and semicircle cambered surface, and eccentric wheel planar central place is provided with described eccentric shaft joint, between eccentric shaft joint and eccentric wheel plane, is connected by arc surface transition.
In eccentric semicircle cambered surface, have the groove matching with fastening screw trip bolt afterbody, groove is positioned at the middle part of eccentric wheel semicircle cambered surface, the plane parallel of the bottom land of groove and eccentric wheel axis hole.
Described eccentric shaft joint extends to form the positioning part of evagination laterally, and the side of positioning part is provided with interior concaved circular cambered surface, and described interior concaved circular cambered surface is the section of stretching out of electric machine main shaft hole hole wall.The end face of positioning part, for spacing, avoids connecting rod and eccentric wheel to interfere.
Beneficial effect: the technical program is simple in structure, easy to assembly, location is reliable, can realize automatic capturing, guarantees concentricity and perpendicularity between main shaft and eccentric shaft, make in the course of the work connecting rod, piston, piston ring and cylinder cover inner hole break-in even, reduce piston wear and increase pressure, increase the service life, reduce power consumption energy saving, quality of product is improved greatly, increase Business Economic Benefit.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model local explosion structural representation.
Fig. 3 is the utility model eccentric wheel assembly structure schematic diagram.
In figure: 1-motor; 2-eccentric wheel; 201-spindle hole; 202-tapped hole; 203-eccentric shaft joint; 204-eccentric wheel axis hole; 205-groove; 206-positioning part; 3-cylinder; 4-electric machine main shaft; 401-reduced diameter section; 402-enlarged diameter section; 5-eccentric shaft; 6-air cylinder connecting rod; 7-fastening screw trip bolt.
Embodiment
Below in conjunction with Figure of description, the technical solution of the utility model is described in further detail.
As Fig. 1, 2, shown in 3, the utility model comprises motor 1, eccentric wheel 2, cylinder 3, described motor 1 is connected with the spindle hole 201 of eccentric wheel 2 by electric machine main shaft 4, described eccentric wheel 2 is connected with cylinder 3 connecting rods 6 by eccentric shaft 5, the overhanging end of electric machine main shaft 4 is stepped, comprise that reduced diameter section 401 and diameter are greater than the enlarged diameter section 402 of reduced diameter section 401, the shaft shoulder forming between reduced diameter section 401 and enlarged diameter section 402 can with the inner side surface of eccentric wheel 2 offset to limit eccentric shaft 5 to displacement, described reduced diameter section 401 is positioned at the outside of enlarged diameter section 402, the one-sided trimming of described reduced diameter section 401 forms plane, described spindle hole 201 matches with the reduced diameter section 401 of electric machine main shaft 4, the arc surface that spindle hole 201 comprises plane and is connected with plane, and the arc surface of spindle hole 201 and electric machine main shaft 4 reduced diameter section 401 arc surfaces match, described eccentric wheel 2 is provided with the tapped hole 202 intersecting vertically with spindle hole 201 planes, in described tapped hole 202, is provided with fastening screw trip bolt 7, and the head of described fastening screw trip bolt 7 can offset with the plane of electric machine main shaft 4.Described eccentric wheel 2 is provided with eccentric shaft joint 203, and described eccentric shaft joint 203 is offered eccentric wheel axis hole 204, in described eccentric wheel axis hole 204, inserts eccentric shaft 5.
Described eccentric wheel 2 is semicircle plate-like, comprises plane and semicircle cambered surface, and eccentric wheel 2 planar central places are provided with described eccentric shaft joint 203, between eccentric shaft joint 203 and eccentric wheel 2 planes, are connected by arc surface transition.
In the semicircle cambered surface of eccentric wheel 2, have the groove 205 matching with fastening screw trip bolt 7 afterbodys, groove 205 is positioned at the middle part of eccentric wheel 2 semicircle cambered surfaces, the plane parallel of the bottom land of groove 205 and eccentric wheel axis hole 204.
For avoiding interfering, described eccentric shaft joint 203 extends to form the positioning part 206 of evagination laterally, and the side of positioning part 206 is provided with interior concaved circular cambered surface, and described interior concaved circular cambered surface is the section of stretching out of electric machine main shaft hole 201 hole walls.
It is specific embodiment of the utility model that one shown in above Fig. 1,2,3 is with eccentric double-cylinder inflating pump; the utility model substantive distinguishing features and progress are embodied; can be according to actual use needs; under enlightenment of the present utility model; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (5)
1. be with eccentric double-cylinder inflating pump for one kind, comprise motor (1), eccentric wheel (2), cylinder (3), described motor (1) is connected with the spindle hole (201) of eccentric wheel (2) by electric machine main shaft (4), described eccentric wheel (2) is connected with cylinder (3) connecting rod (6) by eccentric shaft (5), it is characterized in that: the overhanging end of electric machine main shaft (4) is stepped, comprise and diameter is greater than the enlarged diameter section (402) of reduced diameter section (401), the shaft shoulder forming between reduced diameter section (401) and enlarged diameter section (402) can with the inner side surface of eccentric wheel (2) offset to limit eccentric shaft (5) to displacement, described reduced diameter section (401) is positioned at the outside of enlarged diameter section (402), the one-sided trimming of described reduced diameter section (401) forms plane, described eccentric wheel spindle hole (201) matches with the reduced diameter section (401) of electric machine main shaft (4), the arc surface that eccentric wheel spindle hole (201) comprises plane and is connected with plane, the arc surface of eccentric wheel spindle hole (201) and electric machine main shaft (4) reduced diameter section (401) arc surface match, described eccentric wheel (2) is provided with the tapped hole (202) intersecting vertically with spindle hole (201) plane, in described tapped hole (202), be provided with fastening screw trip bolt (7), the head of described fastening screw trip bolt (7) can offset fixing with the plane of electric machine main shaft (4).
2. one according to claim 1 is with eccentric double-cylinder inflating pump, it is characterized in that: described eccentric wheel (2) is provided with eccentric shaft joint (203), described eccentric shaft joint (203) is offered eccentric wheel axis hole (204), inserts eccentric shaft (5) in described eccentric wheel axis hole (204).
3. one according to claim 2 is with eccentric double-cylinder inflating pump, it is characterized in that: described eccentric wheel (2) is semicircle plate-like, comprise plane and semicircle cambered surface, eccentric wheel (2) planar central place is provided with described eccentric shaft joint (203), between eccentric shaft joint (203) and eccentric wheel (2) plane, is connected by arc surface transition.
4. one according to claim 3 is with eccentric double-cylinder inflating pump, it is characterized in that: in the semicircle cambered surface of eccentric wheel (2), have the groove (205) matching with fastening screw trip bolt (7) afterbody, groove (205) is positioned at the middle part of eccentric wheel (2) semicircle cambered surface, the plane parallel of the bottom land of groove (205) and eccentric wheel axis hole (204).
5. one according to claim 4 is with eccentric double-cylinder inflating pump, it is characterized in that: described eccentric shaft joint (203) extends to form the positioning part (206) of evagination laterally, the side of positioning part (206) is provided with interior concaved circular cambered surface, and described interior concaved circular cambered surface is the section of stretching out of electric machine main shaft hole (201) hole wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053510.0U CN203670132U (en) | 2014-01-27 | 2014-01-27 | Double-cylinder inflator pump with eccentric wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053510.0U CN203670132U (en) | 2014-01-27 | 2014-01-27 | Double-cylinder inflator pump with eccentric wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670132U true CN203670132U (en) | 2014-06-25 |
Family
ID=50966436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053510.0U Expired - Fee Related CN203670132U (en) | 2014-01-27 | 2014-01-27 | Double-cylinder inflator pump with eccentric wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670132U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266611A (en) * | 2014-10-29 | 2015-01-07 | 中航成飞民用飞机有限责任公司 | Auxiliary tool for testing central line of clamping hole of plane escape door stopping block |
-
2014
- 2014-01-27 CN CN201420053510.0U patent/CN203670132U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266611A (en) * | 2014-10-29 | 2015-01-07 | 中航成飞民用飞机有限责任公司 | Auxiliary tool for testing central line of clamping hole of plane escape door stopping block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20210127 |