CN202073760U - Micro flow variable plunger pump with stepping motor - Google Patents
Micro flow variable plunger pump with stepping motor Download PDFInfo
- Publication number
- CN202073760U CN202073760U CN2011201621190U CN201120162119U CN202073760U CN 202073760 U CN202073760 U CN 202073760U CN 2011201621190 U CN2011201621190 U CN 2011201621190U CN 201120162119 U CN201120162119 U CN 201120162119U CN 202073760 U CN202073760 U CN 202073760U
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- CN
- China
- Prior art keywords
- pump
- plunger
- stepper motor
- gear mechanism
- stepping motor
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a micro flow variable plunger pump with a stepping motor, which comprises a plunger pump body. Two ends of the plunger pump body are connected with a pump head and a pump tail respectively, an oil inlet and an oil outlet are arranged on the pump head, a sliding groove enabling a plunger to move is arranged in the pump head, the other end of the plunger is connected with a gear rack mechanism, and the pump tail is connected with a movement transforming mechanism casing. The stepping motor arranged in the movement transforming mechanism casing is connected with a spur gear mechanism which is connected with a bevel gear mechanism through a transmission shaft, and the gear rack mechanism and the bevel gear mechanism are arranged on a shaft. The micro flow variable plunger pump with the stepping motor has the advantages of being simple in structure, convenient to operate, small in volume and light in weight, integrates the stepping motor and the pump body, can control the flow by controlling frequency, and has the advantages of being convenient and flexible to control and the like.
Description
Technical field
The utility model relates to a kind of micrometeor Variable plunger pump that stepper motor is housed, and belongs to the Variable plunger pump technical field.
Background technique
Traditional Variable plunger pump will be realized the variable of pump, often design the stroking mechanism that pump is arranged separately, by the piston motion in the hydraulic coupling promotion stroking mechanism, the motion of piston drives bearing pin again makes the variable head rotate around the steel ball center, thereby change the tilt angle varied of variable head, cause the flow of plunger pump to change thereupon: when the tilt angle became big, it is big that flow becomes, when the tilt angle diminished, flow diminished; When the angle of inclination faded to zero and continues to change round about, the variable head changed to the negative bias angular direction, the living commutation of liquid miscarriage, the oil inlet and outlet conversion of pump.This traditional Variable plunger pump need be realized the variation of flow by the mode that changes swash plate or cylinder body inclination angle, its complex structure, and control is difficult for, and its technology exists not enough.
Summary of the invention
The purpose of this utility model is: provide that a kind of simple in structure, operation and maintenance is convenient, volume is little, in light weight, stepper motor and pump body are made an integral body, can come a kind of micrometeor Variable plunger pump that stepper motor is housed of control flow rate by the mode of control frequency, to overcome the deficiencies in the prior art.
Of the present utility model being constructed as follows: a kind of micrometeor Variable plunger pump that stepper motor is housed, comprise plunges pump body, be connected with pump head and pump tail respectively at the two ends of plunges pump body, pump head is provided with filler opening and oil outlet, in pump head, be provided with and allow the chute of plunger motion, tail end at plunger is provided with tooth bar, tooth bar and the gear engagement that is installed on the axle, the pump tail is connected with the movement conversion mechanism housing, in the movement conversion mechanism housing, be provided with stepper motor, stepper motor is connected with spur gear mechanism, spur gear mechanism is connected with bevel gear mechanism by transmission shaft, bevel gear mechanism is arranged on the axle, is with seal ring on plunger, and seal ring is fixed between plunges pump body and the pump head.
At filler opening and oil outlet place solenoid directional control valve is installed, filler opening and oil outlet communicate with chute.
Outside the movement conversion mechanism housing, be connected with the embedded control system of energy control step motor by electric wire.
Owing to adopted technique scheme, when using the utility model, at first drive spur gear mechanism by stepper motor, to rotatablely move again by transmission shaft then and pass to bevel gear mechanism, thereby change the direction that rotatablely moves, to rotatablely move at last and change straight line motion into by the coaxial pinion and rack of a pair of and bevel gear mechanism, come the straight reciprocating motion of drive plunger by the straight reciprocating motion of tooth bar, move reciprocatingly in chute by the plunger that is made of one with tooth bar, realize the function of oil suction and oil extraction; Compared with prior art, the utility model not only has simple in structure, and is easy to operate, volume is little, lightweight advantage, and stepper motor and pump body are made an integral body, can come control flow rate by the mode of control frequency, controls advantages such as convenient, flexible.
Description of drawings
Fig. 1 is the utility model structural representation;
Description of reference numerals: 1-plunges pump body, 2-pump head, 3-pump tail, the 4-filler opening, 5-oil outlet, 6-plunger, the 7-chute, 8-pinion and rack, 9-movement conversion mechanism housing, the 10-stepper motor, 11-spur gear mechanism, 12-transmission shaft, 13-bevel gear mechanism, 14-axle, 15-solenoid directional control valve, the 16-embedded control system, the 17-seal ring.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Enforcement of the present utility model: a kind of micrometeor Variable plunger pump that stepper motor is housed, as shown in Figure 1, comprise plunges pump body 1, be connected with pump head 2 and pump tail 3 respectively at the two ends of plunges pump body 1, pump head 2 is provided with filler opening 4 and oil outlet 5, in pump head 2, be provided with the chute 7 that can allow plunger 6 move, tail end at plunger 6 is provided with tooth bar 8, tooth bar 8 and the gear engagement that is installed on the axle 14, pump tail 3 is connected with movement conversion mechanism housing 9, in movement conversion mechanism housing 9, be provided with stepper motor 10, stepper motor 10 is connected with spur gear mechanism 11, spur gear mechanism 11 is that the small Spur gear by pair of meshing constitutes, spur gear mechanism 11 is connected with bevel gear mechanism 13 by transmission shaft 12, bevel gear mechanism 13 is made up of the bevel gear of pair of meshing, pinion and rack 8 and bevel gear mechanism 13 are arranged on the axle 14, on plunger 6, be with seal ring 17, and seal ring 17 is fixed between plunges pump body 1 and the pump head 2, seal ring 17 can keep sealing, avoid oil to enter in the plunges pump body 1, at filler opening 4 and oil outlet 5 places solenoid directional control valve 15 is installed, filler opening 4 and oil outlet 5 communicate with chute 7, in order to cooperate the function of finishing oil suction and oil extraction, need a bi-bit bi-pass solenoid directional control valve 15 to be set respectively at filler opening and oil outlet, during oil suction, the valve of filler opening 4 is opened, and the valve of oil outlet 5 cuts out; During oil extraction, the valve of filler opening 4 cuts out, the valve of oil outlet 5 is opened, filler opening and oil outlet communicate with chute, outside the movement conversion mechanism housing, be connected with the embedded control system 16 of energy control step motor by electric wire, realize that by embedded control system 16 this pump carries the clockwise and anticlockwise of stepper motor 10, then by a series of mechanical transmission mechanism, thereby being moved back and forth, plunger 6 make this pump carry out oil suction and oil extraction, and carry the frequency of okperation of stepper motor 10 by means of this pump of embedded control system may command, thereby realize the variation of stepper motor rotational speed, finally reach the purpose of this micrometeor variable piston pump duty of control.
At first start stepper motor 10, the small Spur gear that drives pair of meshing by stepper motor 10 rotates, and then will rotatablely move by transmission shaft 12 and pass to the bevel gear of pair of meshing, thereby change the direction that rotatablely moves, to rotatablely move at last and change straight line motion into by the coaxial pinion and rack 8 of a pair of and bevel gear, come the straight reciprocating motion of drive plunger 6 by the straight reciprocating motion of tooth bar, in pump head 2 internal chutes 7, do reciprocal motion by the plunger 6 that is made of one with tooth bar, thereby realize the function of oil suction and oil extraction.
This micrometeor variable piston pump delivery that carries stepper motor is a micro updating, is mainly used in the occasion that needs micrometeor control in the hydraulic control system, in addition, also can be used for the strict medical machineries of controlling little medicament of needs such as medical injection machine.
Claims (3)
1. micrometeor Variable plunger pump that stepper motor is housed, comprise plunges pump body (1), it is characterized in that: be connected with pump head (2) and pump tail (3) respectively at the two ends of plunges pump body (1), pump head (2) is provided with filler opening (4) and oil outlet (5), in pump head (2), be provided with the chute (7) that can allow plunger (6) move, tail end at plunger (6) is provided with tooth bar (8), tooth bar (8) and the gear engagement that is installed on the axle (14), pump tail (3) is connected with movement conversion mechanism housing (9), in movement conversion mechanism housing (9), be provided with stepper motor (10), stepper motor (10) is connected with spur gear mechanism (11), spur gear mechanism (11) is connected with bevel gear mechanism (13) by transmission shaft (12), bevel gear mechanism (13) is arranged on the axle (14), on plunger (6), be with seal ring (17), and seal ring (17) is fixed between plunges pump body (1) and the pump head (2).
2. the micrometeor Variable plunger pump that stepper motor is housed according to claim 1 is characterized in that: locate to be equipped with solenoid directional control valve (15) at filler opening (4) and oil outlet (5), filler opening (4) and oil outlet (5) communicate with chute (7).
3. the micrometeor Variable plunger pump that stepper motor is housed according to claim 1 is characterized in that: the embedded control system (16) that is connected with energy control step motor (10) outside movement conversion mechanism housing (9) by electric wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621190U CN202073760U (en) | 2011-05-20 | 2011-05-20 | Micro flow variable plunger pump with stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201621190U CN202073760U (en) | 2011-05-20 | 2011-05-20 | Micro flow variable plunger pump with stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073760U true CN202073760U (en) | 2011-12-14 |
Family
ID=45111864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201621190U Expired - Fee Related CN202073760U (en) | 2011-05-20 | 2011-05-20 | Micro flow variable plunger pump with stepping motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557148A (en) * | 2013-10-27 | 2014-02-05 | 贵州大学 | Method for controlling plunger pump through frequency and plunger pump |
| CN109113674A (en) * | 2018-08-15 | 2019-01-01 | 西安石油大学 | A kind of reciprocal pump oil extracting device of down-hole drive |
-
2011
- 2011-05-20 CN CN2011201621190U patent/CN202073760U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557148A (en) * | 2013-10-27 | 2014-02-05 | 贵州大学 | Method for controlling plunger pump through frequency and plunger pump |
| CN103557148B (en) * | 2013-10-27 | 2016-01-13 | 贵州大学 | A kind of by FREQUENCY CONTROL plunger pump method and plunger pump |
| CN109113674A (en) * | 2018-08-15 | 2019-01-01 | 西安石油大学 | A kind of reciprocal pump oil extracting device of down-hole drive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140520 |