CN103758741A - Metering pump crankshaft mechanism capable of allowing stroke to be freely adjusted - Google Patents
Metering pump crankshaft mechanism capable of allowing stroke to be freely adjusted Download PDFInfo
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- CN103758741A CN103758741A CN201410048667.9A CN201410048667A CN103758741A CN 103758741 A CN103758741 A CN 103758741A CN 201410048667 A CN201410048667 A CN 201410048667A CN 103758741 A CN103758741 A CN 103758741A
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- metering pump
- hollow spindle
- connecting rod
- main shaft
- hollow main
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Abstract
The invention provides a metering pump crankshaft mechanism capable of allowing the stroke to be freely adjusted. The metering pump crankshaft mechanism comprises a hollow main shaft. The hollow main shaft and a box body are positioned in a matched mode through two bearings. An adjustment mandrel is arranged inside the hollow main shaft. A transmission pin sleeve and a transmission pin are arranged in the adjustment mandrel, wherein the transmission pin sleeve and the transmission pin are matched with each other. A square step is arranged on the hollow main shaft. An eccentric wheel in sliding fit with the square step is arranged on the square step. A connecting rod bearing is arranged on the eccentric wheel. A connecting rod is in sliding fit and clearance fit with the connecting rod bearing, a worm wheel in stationary fit with the hollow main shaft is arranged outside the hollow main shaft. An adjustment rod is arranged at one end of the adjustment mandrel. The metering pump technology is of an integral structure and high in bearing capacity, allows the stroke to be freely adjusted, and is simple in machining process and low in cost. The metering pump crankshaft mechanism is high in operability and high in controllability, and is an ideal and economical product for a metering pump of the company at present, an original adjustment mechanism is omitted, and the energy saving effect is excellent.
Description
Technical field
The invention belongs to metering pump technical field, specifically the metering pump crank mechanism of any adjustment stroke of a kind of energy.
Background technique
Metering pump is widely used in the industries such as oil, chemical industry, medicine, environmental protection, in actual demand and application, but more and more requires highi degree of accuracy and automation.Therefore, original metering pump adopts N bent axle, the flat axle of skewed slot, camshaft, parabola rotating disk to be all difficult to meet industry requirement, can not reach high-mechanic, high duplication is accurate.In the time of should regulating, moment can not be put into practice greatly effectively and connect with automation online, and to product automation, exploitation is greatly affected.At present to adopt the flat axle construction of skewed slot be main to application metering pump flow control device, and its major defect is main drive shaft is that the person's of existence transmission of separating is not parallel with adjusting, poor with the nonconcentricity of controlling mechanism, affects tune amount accurate.Main transmission shaft structure is huger, the contour cost factor of the large bearing of adapted.
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Summary of the invention
To be solved by this invention is the above-mentioned technological deficiency that existing metering pump flow control device exists, and designs any controlling mechanism of Metering Pump Stroke of a monolithic construction with high-mechanic.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
The metering pump crank mechanism of any adjustment stroke of a kind of energy, it is characterized in that comprising hollow spindle, described hollow spindle coordinates location by two bearings with casing, described hollow spindle inside is provided with adjusting mandrel, regulate in mandrel and be provided with the transmission guide and the driving pin that cooperatively interact, the side's of being provided with step on hollow spindle, on Fang Taijie, be provided with the eccentric wheel being slidably matched with it, on eccentric wheel, be provided with connecting rod bearing, connecting rod coordinates with connecting rod bearing glade plane space, hollow spindle outer installment has the worm gear with hollow spindle stationary fit, regulate one end of mandrel to be provided with adjustable lever.
The metering pump crank mechanism of the described any adjustment stroke of a kind of energy, is characterized in that described connecting rod bearing is fixed on eccentric wheel by four screws.
The metering pump crank mechanism of the described any adjustment stroke of a kind of energy, is characterized in that described worm gear and flat key combination and hollow spindle stationary fit.
The metering pump crank mechanism of the described any adjustment stroke of a kind of energy, is characterized in that being provided with 2 thrust-bearings between described adjustable lever and hollow spindle, and described adjustable lever and thrust-bearing are fixed on hollow spindle by hexagon socket head cap screw and round nut.
The metering pump crank mechanism of any adjustment stroke of a kind of energy of the present invention is mainly by the axial slip of hollow spindle and adjusting mandrel, to drive driving pin to promote eccentric crop rotation through transmission guide to move radially, produce throw of eccentric (title stroke).This crank mechanism belongs to metering pump core component, and transmission part is supporting is combined with casing, worm screw etc.This crank mechanism belongs to monolithic construction (it is by two single-ended supportings of large bearing that tradition is adjusted main shaft, the worm gear of measuring mechanism, and with the controlling mechanism shape connection that becomes to break, bearing capacity is poor, mechanism is huge, manufacture cost is high), can supporting adjusting handle and automation regulating equipment.
When adjusting mandrel of the present invention is done axial displacement in hollow spindle, because be not subject in the parcel of main shaft, from the driving torque of worm screw, worm gear with from the impact force of connecting rod cross shaped joint, affect, so mobile easily free, regulate screw mandrel to adopt spiral degree of regulation good, repeatability positioning precision is high, while adopting manual tune by connecting adjusting handle, by slight strength, adopt regulator to regulate without jam phenomenon.
The overall structure that the present invention adopts, two bearings at main shaft and axle two ends have to bear from connecting rod crossed joint generation great impact power and the impact of Worm Wheel System moment of torsion generation intersection makes main shaft can not produce bending, and during transmission, coaxality is better, and noise is few.
In better case study on implementation of the present invention, for meeting the Flow-rate adjustment that can change metering pump in production continuously under non-stop-machine state.
The invention provides a integrally-built high-mechanic, arbitrarily adjustment stroke, processing technology is simple, cost is low metering pump technology.Operability of the present invention and controllability are strong, are the desirable and economic products of current our company metering pump, cancel original controlling mechanism, and energy-saving effect is splendid.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the entity structure schematic diagram of the embodiment of the present invention;
Fig. 3 is the implementation of an application example sectional structure schematic diagram of the present invention in metering pump;
In figure, 1-hollow spindle; 2-adjusting mandrel; 3-transmission guide; 4-driving pin; 5-eccentric wheel; 6-connecting rod bearing; 7-screw; 8-bearing; 9-thrust-bearing; 10-adjusting screw rod; 11-round nut; 12-bearing washer; 13-hexagon socket head cap screw; 14-connecting rod; 15-worm gear; 16-casing; 17-adjustment seat; 18-adjusting handle; 19-link pin; 20-crosshead push rod; 21-worm screw; 22-bearing; 23-pump head connection seat; 24-flat key.
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Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Refer to Fig. 1, Fig. 2 and Fig. 3, the two ends of hollow spindle 1 are supported by two bearings 8, are assemblied in casing 16 and adjustment seat 17, and are fixed on casing 16 by bearing cover; Worm gear 15 is assemblied in hollow spindle 1 lower end and worm screw 15 centerings form driving mechanism.
Refer to Fig. 3, regulate mandrel 2 through transmission guide 3 joint transmission pins 4, to be with movable eccentric wheel 5 in hollow spindle 1; Modulated handwheel 18 rotates regulating and controlling screw rod 10 through regulating on mandrel 2 two thrust-bearings 9 and hexagon socket head cap screw 13 in conjunction with forming axial slips; Now transmission guide 3 drives driving pin 4 to impel eccentric wheel 5 to produce nonconcentricity parallel shift under the skewed slot effect that regulates mandrel 2, forms stroke and changes.
Stationary links bearing 6 on eccentric wheel 5, connecting rod bearing 6(sliding bearing) with connecting rod 14 for being slidably matched, connecting rod 14 connects with crosshead push rod 20 through link pin 19, changing into to-and-fro motion from worm screw 21, worm gear 15 rotary drives, reaches the object of adjustment stroke.
On adjusting handle 18 in the embodiment of the present invention, be carved with the calibration of 0-9, coordinate the corresponding adjusting of adjustment seat 17 high scale label 0-100 simultaneously, handwheel revolves the corresponding scale label 10% of going around, and handwheel rotation 10 transfers Flow-rate adjustment to full stroke 100%.And any lockable simultaneously that regulates.
The embodiment of the present invention can connect automation equipment: take off adjusting handle 18, and adapted automatic control regulator, available 4-20mA milliampere or pulse signal are made on-line monitoring and are controlled metering pump work adjust flux, reach automation object.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within being all included in protection scope of the present invention.
Claims (4)
1. the metering pump crank mechanism of any adjustment stroke of energy, it is characterized in that comprising hollow spindle (1), described hollow spindle (1) coordinates location by two bearings (8) with casing (16), described hollow spindle (1) inside is provided with and regulates mandrel (2), regulate in mandrel (2) and be provided with the transmission guide (3) and the driving pin (4) that cooperatively interact, the side's of being provided with step on hollow spindle (1), on Fang Taijie, be provided with the eccentric wheel (5) being slidably matched with it, on eccentric wheel (5), be provided with connecting rod bearing (6), connecting rod (14) coordinates with connecting rod bearing (6) glade plane space, hollow spindle (1) outer installment has the worm gear (15) with hollow spindle (1) stationary fit, regulate one end of mandrel (2) to be provided with adjustable lever (10).
2. the metering pump crank mechanism of any adjustment stroke of a kind of energy as claimed in claim 1, is characterized in that described connecting rod bearing (6) is fixed on eccentric wheel by four screws (7).
3. the metering pump crank mechanism of any adjustment stroke of a kind of energy as claimed in claim 1, is characterized in that described worm gear (15) and flat key (16) combination and hollow spindle (1) stationary fit.
4. the metering pump crank mechanism of any adjustment stroke of a kind of energy as claimed in claim 1, it is characterized in that being provided with 2 thrust-bearings (9) between described adjustable lever (10) and hollow spindle (1), described adjustable lever (10) is fixed on hollow spindle (1) by hexagon socket head cap screw (13) and round nut (11) with thrust-bearing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048667.9A CN103758741B (en) | 2014-02-12 | 2014-02-12 | The metering pump crank mechanism of any adjustment stroke of a kind of energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048667.9A CN103758741B (en) | 2014-02-12 | 2014-02-12 | The metering pump crank mechanism of any adjustment stroke of a kind of energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758741A true CN103758741A (en) | 2014-04-30 |
| CN103758741B CN103758741B (en) | 2016-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048667.9A Active CN103758741B (en) | 2014-02-12 | 2014-02-12 | The metering pump crank mechanism of any adjustment stroke of a kind of energy |
Country Status (1)
| Country | Link |
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| CN (1) | CN103758741B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332104A (en) * | 2019-08-14 | 2019-10-15 | 德帕姆(杭州)泵业科技有限公司 | A kind of anti-metering pump for killing electric adjustable measuring mechanism |
| CN113266546A (en) * | 2021-05-25 | 2021-08-17 | 浙江力高泵业科技有限公司 | Metering pump with chute transmission type plunger stroke adjusting mechanism |
| CN113586418A (en) * | 2021-07-26 | 2021-11-02 | 常州瑞曦生物科技有限公司 | Eccentric distance adjustable diaphragm pump driving device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974714A (en) * | 1974-10-01 | 1976-08-17 | Lewa Herbert Ott Kommanditgesellschaft | Pump driving mechanism with adjustable stroke |
| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN1796786A (en) * | 2004-12-28 | 2006-07-05 | 浙江工业大学 | Stroke control mechanism of metering pump |
| CN201496220U (en) * | 2009-09-29 | 2010-06-02 | 大连里瓦泵业有限公司 | Adjustable eccentric structure of metering pump |
| CN203702520U (en) * | 2014-02-12 | 2014-07-09 | 浙江力高泵业科技有限公司 | Metering pump crankshaft mechanism with randomly-adjustable stroke |
-
2014
- 2014-02-12 CN CN201410048667.9A patent/CN103758741B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974714A (en) * | 1974-10-01 | 1976-08-17 | Lewa Herbert Ott Kommanditgesellschaft | Pump driving mechanism with adjustable stroke |
| CN2637766Y (en) * | 2003-08-02 | 2004-09-01 | 王华跃 | Flow quantity regulatable hydraulic diaphragm metering pump |
| CN1796786A (en) * | 2004-12-28 | 2006-07-05 | 浙江工业大学 | Stroke control mechanism of metering pump |
| CN201496220U (en) * | 2009-09-29 | 2010-06-02 | 大连里瓦泵业有限公司 | Adjustable eccentric structure of metering pump |
| CN203702520U (en) * | 2014-02-12 | 2014-07-09 | 浙江力高泵业科技有限公司 | Metering pump crankshaft mechanism with randomly-adjustable stroke |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332104A (en) * | 2019-08-14 | 2019-10-15 | 德帕姆(杭州)泵业科技有限公司 | A kind of anti-metering pump for killing electric adjustable measuring mechanism |
| CN113266546A (en) * | 2021-05-25 | 2021-08-17 | 浙江力高泵业科技有限公司 | Metering pump with chute transmission type plunger stroke adjusting mechanism |
| CN113586418A (en) * | 2021-07-26 | 2021-11-02 | 常州瑞曦生物科技有限公司 | Eccentric distance adjustable diaphragm pump driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758741B (en) | 2016-02-24 |
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