CN201696279U - Metering pump for eccentric stroke regulating mechanism - Google Patents
Metering pump for eccentric stroke regulating mechanism Download PDFInfo
- Publication number
- CN201696279U CN201696279U CN2009202001179U CN200920200117U CN201696279U CN 201696279 U CN201696279 U CN 201696279U CN 2009202001179 U CN2009202001179 U CN 2009202001179U CN 200920200117 U CN200920200117 U CN 200920200117U CN 201696279 U CN201696279 U CN 201696279U
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- China
- Prior art keywords
- eccentric wheel
- eccentric
- shaped
- hollow shaft
- metering pump
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- Expired - Fee Related
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Abstract
The utility model discloses a metering pump for an eccentric stroke regulating mechanism, which comprises a screw mandrel, a moving shaft, a hollow shaft, an eccentric wheel device, a slipper, a connecting rod, and a sliding rod that are connected in sequence. The eccentric wheel device comprises a round eccentric wheel and a U-shaped eccentric wheel. The bottom of the round eccentric wheel is concentrically connected with the U-shaped eccentric wheel; the U-shaped groove of the U-shaped eccentric wheel is clamped with the hollow shaft; and an eccentric groove hole allowing the hollow shaft to pass through and conduct radial relative movement is formed on the round eccentric wheel in the axial direction, and a through hole allowing the slipper to pass through is formed on the round eccentric wheel in the radial direction. The split type structure of the eccentric wheel device can bear high stress, so as to reduce deformation, avoid friction force due to deformation, reduce power consumption, and prolong service life.
Description
Technical field
The utility model relates to a kind of metering pump of eccentric stroke control mechanism.
Background technique
As fluid delicate metering and the ideal equipment that adds, nowadays metering pump has been widely used in the every field that comprises pharmacy, food and drink and petroleum chemical industry.Pump partly is made up of motor, transmission case, cylinder body etc., and transmission case comprises connecting rod cam mechanism, stroke control mechanism and Worm gear mechanism.And stroke control mechanism control metering pump flow, existing a kind of eccentric controlling mechanism, its structure is that main shaft is connected with eccentric wheel, reciprocating by the eccentric wheel drivening rod, the rotation adjusting handle just can drive adjusting screw rod and move axially, make coupled eccentric wheel move radially, change eccentric throw of eccentric, the connecting rod stroke is changed, reached the purpose that changes plunger (piston) stroke and diaphragm shift motion in pump chamber thus.The former N profile shaft structure of comparing, it is simple that this technology has processing technology, and bearing capacity is bigger, and element is difficult for producing the advantage of wearing and tearing.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of bearing capacity is bigger, the metering pump of the eccentric stroke control mechanism of longer service life.
For solving the problems of the technologies described above, the metering pump of the utility model eccentric stroke control mechanism, comprise stroke control mechanism, it comprises screw mandrel, shifting axle, hollow shaft, eccentric wheel apparatus, slide block, connecting rod, the slide bar that connects successively, and this eccentric wheel apparatus is made up of circular eccentric wheel and U-shaped eccentric wheel; Circular eccentric wheel bottom connects U-shaped eccentric wheel, eccentric U-groove bevel of this U-shaped and hollow shaft clamping with one heart; Circular eccentric shaft is to having the eccentric slotted eye that connects and radially relatively move for hollow shaft, and circular eccentric wheel radially has the through hole that cooperates slide block to connect.
Between circular eccentric wheel and the connecting rod roller bearing or bearing shell are housed.
Circular eccentric wheel and U-shaped eccentric wheel corresponding position offer the radial symmetric connecting through hole, connect by straight pin each other.
Between shifting axle and the described screw mandrel thrust ball bearing, locking plate, locking nut are housed
Existing eccentric wheel all adopts the structure of integral type, with the present invention eccentric wheel is divided into circular eccentric wheel and U-shaped eccentric wheel, and both the present invention that compares have:
Simple in structure, processing technology simply, not yielding fracture.Circular eccentric shaft is processed by line cutting to locational shape, and processing technology is simple, is easy to make; And cylindrical is an all-in-one-piece circumference, and the stress that radially bears is bigger, has greatly reduced consequent deformation, thereby the frictional force of having avoided distortion to cause reduces the consumption of power, has prolonged working life.
Bearing capacity is big, no impact force.Because circular eccentric wheel and U-shaped eccentric wheel contact with hollow shaft their bearing capacities are strengthened in large area; Circular eccentric wheel and the gapless chute place that is installed in hollow shaft of U-shaped eccentric wheel when they rotatablely move when the hollow shaft drive, can not produce impact force yet simultaneously.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the sectional view of the eccentric stroke control mechanism of the utility model metering pump.
Fig. 2 is the three-dimensional erection drawing of the eccentric stroke control mechanism of the utility model metering pump.
Embodiment
With reference to the accompanying drawings, will be described in detail of the present utility model below.
As shown in Figure 1 and Figure 2, the eccentric stroke control mechanism of the utility model metering pump comprises: the screw mandrel 1 of An Zhuaning, shifting axle 2, hollow shaft 3, eccentric wheel apparatus, slide block 5, connecting rod 7, slide bar 8 and worm gear 9, worm screw 10 successively.
One end of shifting axle 2 connects screw mandrel 1, and locking nut 11, thrust ball bearing 12, locking plate 13 are equipped with in this joint, can relatively rotate when screw mandrel 1 and shifting axle 2 are axially moved; The skewed slot that cooperates slider guide to move is offered at shifting axle 2 middle parts, and its other end is installed in the hollow shaft 3.Eccentric wheel apparatus is made up of circular eccentric wheel 4 and U-shaped eccentric wheel 6; Circular eccentric wheel and U-shaped eccentric wheel corresponding position offer the connecting through hole of 4 symmetries, connect eccentric U-groove bevel of this U-shaped and hollow shaft clamping each other with one heart by straight pin; Circular eccentric shaft is to having the eccentric slotted eye that connects and radially relatively move for hollow shaft, circular eccentric wheel radially has the through hole that cooperates slide block to connect, slide block 5 then passes skewed slot and through hole is serially connected shifting axle 2 and circular eccentric wheel 4, when shifting axle 2 axial motions, can make circular eccentric wheel 4 produce the change of throw of eccentric, thereby make the stroke of connecting rod 7 and slide bar 8 become big and reduce; Circular eccentric wheel 4 is connected the bearing capacity that strengthens metering pump with U-shaped eccentric wheel 6 by straight pin; Be provided with roller bearing 14 between circular eccentric wheel 4 and the connecting rod 7, can make to reduce friction when doing relative motion between them; Connecting rod 7 and slide bar 8 link together by pin 15, can change into linear reciprocating motion to rotational motion like this; Worm gear 9 and worm screw 10 can drive hollow shaft 3 and rotate.
The working principle of present embodiment is as follows:
Motor drives hollow shaft 3 rotations by worm gear 9, worm screw 10, i.e. the circular eccentric wheel 4 of hollow shaft 3 drives rotates synchronously, and circular eccentric wheel 4 drive link 7, slide bar 8 are done linear reciprocating motion.When screw mandrel 1 axial motion, shifting axle 2 also axially moves simultaneously, because slide block 5 and circular eccentric wheel 4 can not axially move, the relation of the chute of the skewed slot of shifting axle 2, hollow shaft 3, circular eccentric wheel 4 can only be done radial motion, make throw of eccentric be changed, the movement travel of slide bar 8 changes thereupon.
All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (5)
1. the metering pump of an eccentric stroke control mechanism, comprise stroke control mechanism, it comprises screw mandrel (1), shifting axle (2), hollow shaft (3), eccentric wheel apparatus, slide block (5), connecting rod (7), the slide bar (8) that connects successively, it is characterized in that: described eccentric wheel apparatus is that circular eccentric wheel (4) and U-shaped eccentric wheel (6) are formed; Described circular eccentric wheel (4) bottom connects described U-shaped eccentric wheel (6), eccentric U-groove bevel of this U-shaped and hollow shaft clamping with one heart; Described circular eccentric wheel (4) axially has the eccentric slotted eye that cooperates hollow shaft (3) to connect and radially relatively move, and radially has the through hole that cooperates slide block to connect.
2. metering pump according to claim 1 is characterized in that: roller bearing (14) is housed between described circular eccentric wheel and the connecting rod.
3. metering pump according to claim 1 is characterized in that: between described circular eccentric wheel and the connecting rod bearing shell is housed.
4. according to claim 2 or 3 described metering pumps, it is characterized in that: described integrated type eccentric wheel and described U-shaped eccentric wheel corresponding position offer the radial symmetric connecting through hole, connect by straight pin each other.
5. metering pump according to claim 4 is characterized in that: thrust ball bearing (12), locking plate (13), locking nut (11) are housed between described shifting axle and the described screw mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202001179U CN201696279U (en) | 2009-11-10 | 2009-11-10 | Metering pump for eccentric stroke regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202001179U CN201696279U (en) | 2009-11-10 | 2009-11-10 | Metering pump for eccentric stroke regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696279U true CN201696279U (en) | 2011-01-05 |
Family
ID=43397521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202001179U Expired - Fee Related CN201696279U (en) | 2009-11-10 | 2009-11-10 | Metering pump for eccentric stroke regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696279U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966523A (en) * | 2012-10-30 | 2013-03-13 | 合肥通用机械研究院 | Gas-liquid combined stroke adjusting system of metering pump |
| CN103362769A (en) * | 2012-03-26 | 2013-10-23 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with entire solid eccentric wheel travel adjustment mechanism |
| CN105697259A (en) * | 2016-04-26 | 2016-06-22 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with movable shaft with chutes |
| CN110961966A (en) * | 2019-12-12 | 2020-04-07 | 广东工业大学 | Reciprocating feeding processing device with adjustable frequency and reciprocating amplitude |
| CN114151599A (en) * | 2020-09-08 | 2022-03-08 | 中国石油化工股份有限公司 | Control valve and flow capacity adjusting mechanism thereof |
-
2009
- 2009-11-10 CN CN2009202001179U patent/CN201696279U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362769A (en) * | 2012-03-26 | 2013-10-23 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with entire solid eccentric wheel travel adjustment mechanism |
| CN103362769B (en) * | 2012-03-26 | 2017-01-04 | 德帕姆(杭州)泵业科技有限公司 | A kind of dosing pump of overall throw of eccentric governor motion |
| CN102966523A (en) * | 2012-10-30 | 2013-03-13 | 合肥通用机械研究院 | Gas-liquid combined stroke adjusting system of metering pump |
| CN105697259A (en) * | 2016-04-26 | 2016-06-22 | 德帕姆(杭州)泵业科技有限公司 | Metering pump with movable shaft with chutes |
| CN105697259B (en) * | 2016-04-26 | 2019-03-05 | 德帕姆(杭州)泵业科技有限公司 | Skewed slot shifting axle metering pump |
| CN110961966A (en) * | 2019-12-12 | 2020-04-07 | 广东工业大学 | Reciprocating feeding processing device with adjustable frequency and reciprocating amplitude |
| CN114151599A (en) * | 2020-09-08 | 2022-03-08 | 中国石油化工股份有限公司 | Control valve and flow capacity adjusting mechanism thereof |
| CN114151599B (en) * | 2020-09-08 | 2024-04-05 | 中国石油化工股份有限公司 | Control valve and flow capacity adjusting mechanism thereof |
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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: 20110105 Termination date: 20131110 |