CN202946895U - Fixed-flow direction cycloid lubricant pump - Google Patents
Fixed-flow direction cycloid lubricant pump Download PDFInfo
- Publication number
- CN202946895U CN202946895U CN 201220535466 CN201220535466U CN202946895U CN 202946895 U CN202946895 U CN 202946895U CN 201220535466 CN201220535466 CN 201220535466 CN 201220535466 U CN201220535466 U CN 201220535466U CN 202946895 U CN202946895 U CN 202946895U
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- Prior art keywords
- eccentric bushing
- rotor
- pump
- cycloidal
- inner rotor
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Abstract
The utility model relates to a fixed-flow direction cycloid lubricant pump which comprises a pump body, an eccentric bushing, an outer rotor and an inner rotor, wherein the outer rotor and the inner rotor are respectively composed of a pair of conjugated cycloid gears, the inner rotor is connected with a drive shaft and is driven by the drive shaft to rotate, and the outer rotor rotates in the same direction with the inner rotor under the action of the inner rotor in a differential mode. A section of C-shaped cotter groove is arranged between the eccentric bushing and the pump body, and a locating pin is arranged in the cotter groove. When the drive rotates reversely, the outer rotor rotates reversely along with the inner rotor, the eccentric bushing reversely rotates with the driving of the outer rotor, and the eccentric bushing is located through the locating pin after rotating 180 degrees. Compared with the prior art, by changing the position and eccentric distance of the eccentric bushing, an oil-absorbing area and an oil-pressing area are enabled to be fixed relatively, and the flow direction of lubricating liquids does not change with rotating direction of the drive shaft. The fixed-flow direction cycloid lubricant pump has the advantages of being compact in structure, light in weight, convenient to install, good in self-absorption property, high in efficiency, stable in flow, and low in noises. Besides, directionality of oil supply is realized.
Description
Technical field
The utility model relates to lubricant pump, especially a kind ofly adopts constant current that the conjugation cycloidal gear consists of to cycloidal lubricating pump.
Background technique
At present, generally all need to use lubricant pump on the electronic product such as lathe, automobile, existing lubricant pump has gear pump, plunger pump and cycloidal lubricating pump usually, there are the shortcomings such as pulsation is large, oil pressure is unstable, noise is large in gear pump and plunger pump, the filler opening of gear pump and oil outlet also can change with the change of main shaft sense of rotation, for require the fuel feeding constant current to, and the higher electromechanical equipment of noise requirements often can not satisfy the demands.
The model utility content
For the deficiency of above existing lubricant pump, the purpose of this utility model is to provide a kind of employing conjugation cycloidal gear and eccentric bushing, by changing throw of eccentric, guarantees the relatively fixing of oil suction district, laminated oil zone, realize the fuel feeding constant current to cycloidal lubricating pump.
The purpose of this utility model is achieved by the following technical solution:
Constant current is to cycloidal lubricating pump, comprise the pump housing, eccentric bushing, external rotor and internal rotor, described eccentric bushing is located in the pump housing, external rotor and internal rotor are located in eccentric bushing, described external rotor and internal rotor are made of the cycloidal gear of a pair of conjugation respectively, described internal rotor is connected with live axle and rotates under the drive of live axle, and described external rotor is made equidirectional differential with internal rotor and rotated under the effect of internal rotor.
As optimal technical scheme of the present utility model, be provided with one section C shape cotter way between described eccentric bushing and the pump housing, be provided with locating stud in cotter way.
As optimal technical scheme of the present utility model, during described live axle counterrotating, external rotor is with the internal rotor backward rotation, and the counterrotating under the drive of external rotor of described eccentric bushing is located by locating stud after eccentric bushing rotates a certain angle.
As optimal technical scheme of the present utility model, the maximum angle of described eccentric bushing rotation is 180 degree.
As optimal technical scheme of the present utility model, the outer surface of the described pump housing is provided with two oil outlets, and the minimum angle between two oil outlets is less than or equal to 180 degree.
The beneficial effects of the utility model are: with respect to prior art, the utility model is comprised of a pair of conjugation cycloidal gear and eccentric bushing, the number of teeth of inner and outer rotors does not wait, relatively eccentric, when the live axle counterrotating, eccentric bushing rotor is outside located after driving lower counterrotating 180 degree, has changed position and the throw of eccentric of eccentric bushing, guarantee the relative fixing of oil suction district and laminated oil zone, thereby realize the directionality of fuel feeding.
The utility model compact structure, lightweight, easy for installation, and self-priming performance is good, efficient is high, stability of flow, noise are low; The flow direction of Lubricants does not change with the variation of drive shaft rotation direction, guarantees the directionality of fuel feeding.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is sectional structure schematic diagram of the present utility model;
Fig. 2 is external structure schematic diagram of the present utility model;
Fig. 3 is the left TV structure schematic diagram of Fig. 2.
In figure: 1, the pump housing, 2, eccentric bushing, 3, external rotor, 4, internal rotor, 5, cotter way, 6, locating stud, 7, live axle, 8, oil outlet.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, constant current is to cycloidal lubricating pump, comprise the pump housing 1, eccentric bushing 2, external rotor 3 and internal rotor 4, eccentric bushing 2 is located in the pump housing 1, external rotor 3 and internal rotor 4 are located in eccentric bushing 2, external rotor 3 and internal rotor 4 are made of the cycloidal gear of a pair of conjugation respectively, and internal rotor 4 is connected with live axle 7 and rotates under the drive of live axle 7, and external rotor 3 is made equidirectional differential with internal rotor 4 and rotated under the effect of internal rotor 4.
In the present embodiment, described internal rotor 4 is connected with live axle 7, is provided with one section C shape cotter way 5 between eccentric bushing 2 and the pump housing 1, is provided with locating stud 6 in cotter way 5.During live axle 7 counterrotating, external rotor 3 is with internal rotor 4 backward rotation, and eccentric bushing 2 counterrotating under the drive of external rotor 3 is located by locating stud 6 after eccentric bushing 2 rotates a certain angle, and the maximum angle of the present embodiment eccentric bushing 2 rotations is 180 degree.The minimum angle that the outer surface of the described pump housing 1 is provided with between 8, two oil outlets 8 of two oil outlets is A, and A spends less than or equal to 180 at the angle.
The utility model is comprised of a pair of conjugation cycloidal gear, and is relatively eccentric because the number of teeth of inner and outer rotors does not wait, and therefore has certain volume space, and rotor makes volume space change in relative movement, produces oil suction and moves with force feed.When live axle 7 counterrotating, eccentric bushing 2 is located after the reverse drive backspin turnback of external rotor 3, has changed position and the throw of eccentric of eccentric bushing, makes the oil suction district relative with laminated oil zone fixing, thereby realizes the directionality of fuel feeding.
Claims (5)
1. a constant current is to cycloidal lubricating pump, comprise the pump housing, eccentric bushing, external rotor and internal rotor, described eccentric bushing is located in the pump housing, external rotor and internal rotor are located in eccentric bushing, it is characterized in that: described external rotor and internal rotor are made of the cycloidal gear of a pair of conjugation respectively, described internal rotor is connected with live axle and rotates under the drive of live axle, and described external rotor is made equidirectional differential with internal rotor and rotated under the effect of internal rotor.
2. constant current according to claim 1 to cycloidal lubricating pump, is characterized in that: be provided with one section C shape cotter way between described eccentric bushing and the pump housing, be provided with locating stud in cotter way.
3. constant current according to claim 2 to cycloidal lubricating pump, is characterized in that: during described live axle counterrotating, external rotor is with the internal rotor backward rotation, and the counterrotating under the drive of external rotor of described eccentric bushing is located by locating stud after the eccentric bushing rotation.
4. constant current according to claim 3 to cycloidal lubricating pump, is characterized in that: the maximum angle of described eccentric bushing rotation is 180 degree.
5. constant current according to claim 1 to cycloidal lubricating pump, is characterized in that: the outer surface of the described pump housing is provided with two oil outlets, and the minimum angle between two oil outlets is less than or equal to 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535466 CN202946895U (en) | 2012-10-18 | 2012-10-18 | Fixed-flow direction cycloid lubricant pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220535466 CN202946895U (en) | 2012-10-18 | 2012-10-18 | Fixed-flow direction cycloid lubricant pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946895U true CN202946895U (en) | 2013-05-22 |
Family
ID=48422597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220535466 Expired - Fee Related CN202946895U (en) | 2012-10-18 | 2012-10-18 | Fixed-flow direction cycloid lubricant pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946895U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105084A (en) * | 2018-01-10 | 2018-06-01 | 浙江万安其弗汽车零部件有限公司 | A kind of two-way Swing line oil pump |
| CN108916628A (en) * | 2018-07-10 | 2018-11-30 | 浙江平柴泵业有限公司 | A kind of efficient engine oil pump |
-
2012
- 2012-10-18 CN CN 201220535466 patent/CN202946895U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105084A (en) * | 2018-01-10 | 2018-06-01 | 浙江万安其弗汽车零部件有限公司 | A kind of two-way Swing line oil pump |
| CN108916628A (en) * | 2018-07-10 | 2018-11-30 | 浙江平柴泵业有限公司 | A kind of efficient engine oil pump |
| CN108916628B (en) * | 2018-07-10 | 2019-12-31 | 浙江平柴泵业有限公司 | Efficient oil pump |
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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 |
Granted publication date: 20130522 Termination date: 20151018 |
|
| EXPY | Termination of patent right or utility model |