CN204312267U - Dual Drive solvent delivery pump - Google Patents
Dual Drive solvent delivery pump Download PDFInfo
- Publication number
- CN204312267U CN204312267U CN201420590609.4U CN201420590609U CN204312267U CN 204312267 U CN204312267 U CN 204312267U CN 201420590609 U CN201420590609 U CN 201420590609U CN 204312267 U CN204312267 U CN 204312267U
- Authority
- CN
- China
- Prior art keywords
- stepper motor
- pump
- dual drive
- pump head
- solvent delivery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002904 solvent Substances 0.000 title claims abstract description 25
- 230000009977 dual effect Effects 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000010349 pulsation Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of Dual Drive solvent delivery pump, comprise frame, stepper motor, the pump housing and connection part, the number of described stepper motor, the described pump housing and described connection part is two, and being arranged in described frame all side by side, the torque output shaft of described stepper motor is connected by the torque input shaft of described connection part with the described pump housing.The utility model Dual Drive solvent delivery pump drives two to overlap the pump operation of independently mechanical device steadily with stepper motor respectively, and seamless link is accomplished in point of intersection, and pulsating movement free thrust steady pressure is large, easy to maintenance.
Description
Technical field
The utility model relates to a kind of pump, particularly relates to a kind of Dual Drive solvent delivery pump.
Background technique
Generally being applied to the transfer pump that liquid chromatogram is separated is main mainly with cam pump greatly, cam does the technological deficiency of the pump of transmission, what cam was walked when running is oblique line, from minimum point to peak work, and then heavy peak can produce a fixing pulsation when getting back to minimum point, do not circle and all can produce a pulsation, this pulsation cannot suppress, the pumping pressure doing transmission with cam is beated greatly, job insecurity, pulsation cannot suppress, flow accuracy is poor, infuse not steady, usually with cam do transmission pumping pressure display do unit with Mpa, impurity close with main peak in the middle of liquid chromatogram is separated, a pulsation will mask impurity peaks, only accomplish that pulsating movement free just well can be separated each impurity peaks.
Model utility content
The purpose of this utility model is just to provide a kind of Dual Drive solvent delivery pump to solve the problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of Dual Drive solvent delivery pump, comprise frame, stepper motor, the pump housing and connection part, the number of described stepper motor, the described pump housing and described connection part is two, and being arranged in described frame all side by side, the torque output shaft of described stepper motor is connected by the torque input shaft of described connection part with the described pump housing.
Two stepper motors drive the work of two pump housing independent cross respectively by the connection part of correspondence.
Particularly, described connection part comprises coupling, ball screw, guide runner, orienting roll dynamic bearing, leading screw fixed base, thrust spring and locking spring damper, the first end of described coupling is connected with the torque output shaft of described stepper motor, second end of described coupling is connected with the first end of described ball screw, described ball screw is arranged in described leading screw fixed base, described leading screw fixed base is connected with described guide runner by orienting roll dynamic bearing, described guide runner is arranged in described frame, described thrust spring is arranged on outside the second end of described ball screw, described locking spring damper is arranged on the second end end face of described ball screw.
Preferably, the first end arranged outside of described ball screw has dust-proof cover.
Particularly, the described pump housing comprises pump head, pump head fixed base, guide piston and plunger rod locking device, the first end of described guide piston is fixedly connected with described locking spring damper by described plunger rod locking device, described pump head is fixed in described frame by described pump head fixed base, second end of described guide piston is arranged in described pump head, described pump head is provided with fluid one-way valve and feed liquor one-way valve.
Particularly, the medial axis of the medial axis of the torque output shaft of the described stepper motor of same row, the medial axis of described ball screw, the medial axis of described guide piston and described pump head is same straight line.
Preferably, described pump head is ceramic pump head.
Pottery pump head can increase the high pressure resistant of the pump housing and decay resistance.
The beneficial effects of the utility model are:
The utility model Dual Drive solvent delivery pump drives two respectively with stepper motor, and to overlap the pump operation of independently mechanical device steady, seamless link is accomplished in point of intersection, pulsating movement free thrust steady pressure is large, easy to maintenance, work owing to have employed under pottery can realize the constant delivery of high pressure or ultrahigh pressure solvent and the environment of highly corrosive for a long time as pump head.
Accompanying drawing explanation
Fig. 1 is the plan view of Dual Drive solvent delivery pump described in the utility model;
Fig. 2 is the plan view of Dual Drive solvent delivery pump described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As depicted in figs. 1 and 2, the utility model Dual Drive solvent delivery pump, comprise frame 11, stepper motor 10, the pump housing and connection part, stepper motor 10, the number of the pump housing and connection part is two, and be arranged in frame 11 all side by side, the torque output shaft of stepper motor 10 is connected with the torque input shaft of the pump housing by connection part, connection part comprises coupling 12, ball screw 13, guide runner 7, orienting roll dynamic bearing 14, leading screw fixed base 8, thrust spring 6 and locking spring damper 5, the first end of coupling 12 is connected with the torque output shaft of stepper motor 10, second end of coupling 12 is connected with the first end of ball screw 13, ball screw 13 is arranged in leading screw fixed base 8, leading screw fixed base 8 is connected with guide runner 7 by orienting roll dynamic bearing 14, guide runner 7 is arranged in frame 11, thrust spring 6 is arranged on outside the second end of ball screw 13, locking spring damper 5 is arranged on the second end end face of ball screw 13, the first end arranged outside of ball screw 13 has dust-proof cover 9, the pump housing comprises pump head 1, pump head fixed base 2, guide piston 3 and plunger rod locking device 4, the first end of guide piston 3 is fixedly connected with locking spring damper 5 by plunger rod locking device 4, pump head 1 is fixed in frame 11 by pump head fixed base 2, second end of guide piston 3 is arranged in pump head 1, pump head 1 is provided with fluid one-way valve 16 and feed liquor one-way valve 15, the medial axis of the torque output shaft of the stepper motor 10 of same row, the medial axis of ball screw 13, the medial axis of guide piston 3 and the medial axis of pump head 1 are same straight line, pump head 1 is ceramic pump head.
The working principle of the utility model Dual Drive solvent delivery pump is as follows:
This Dual Drive solvent delivery pump passes through pressure tester, stepper motor 10 driver and singlechip controller control two separate mechanical devices, two stepper motors 10 drive two to overlap independently mechanical device respectively, with stepper motor 10 working principle of injector that driven the pattern of ball screw 13 to imitate, make it can accomplish in the formation of single guide piston 3 at the uniform velocity, constant, nonseptate transfusion makes infusion process constant pressure, pulsating movement free, when forward impelling reaches the limit of position to the first set pump housing in a linear fashion, namely guide piston 3 arrives the inner side of pump head 1, after the pumping pressure of pressure tester to the first set pump housing measures, data are sent to singlechip controller, singlechip controller is controlled stepping point gold by stepper motor 10 driver, the stepper motor 10 of the first set pump housing is reversed, the stepper motor 10 of the second cover pump housing rotates forward simultaneously, proceed solvent delivery, the action that Dual Drive solvent delivery pump has imitated injector forward impelling and retracted backward, two covering devices are installed together and just complete a complementary function, pulsating movement free process can be accomplished, beat between 3-5psi with Instrument measuring pressure pulsation, constant high pressure or ultrahigh pressure delivery solvent can be realized, this solvent delivery dual drive pump mechanical device project organization is reasonable, thrust steady pressure is large, easy to maintenance, work owing to have employed under pottery can realize the constant delivery of high pressure or ultrahigh pressure solvent and the environment of highly corrosive for a long time as pump head 1.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical solution of the utility model, all falls within protection domain of the present utility model.
Claims (6)
1. a Dual Drive solvent delivery pump, comprise frame and stepper motor, it is characterized in that: also comprise the pump housing and connection part, the number of described stepper motor, the described pump housing and described connection part is two, and being arranged in described frame all side by side, the torque output shaft of described stepper motor is connected by the torque input shaft of described connection part with the described pump housing.
2. Dual Drive solvent delivery pump according to claim 1, it is characterized in that: described connection part comprises coupling, ball screw, guide runner, orienting roll dynamic bearing, leading screw fixed base, thrust spring and locking spring damper, the first end of described coupling is connected with the torque output shaft of described stepper motor, second end of described coupling is connected with the first end of described ball screw, described ball screw is arranged in described leading screw fixed base, described leading screw fixed base is connected with described guide runner by orienting roll dynamic bearing, described guide runner is arranged in described frame, described thrust spring is arranged on outside the second end of described ball screw, described locking spring damper is arranged on the second end end face of described ball screw.
3. Dual Drive solvent delivery pump according to claim 2, is characterized in that: the first end arranged outside of described ball screw has dust-proof cover.
4. Dual Drive solvent delivery pump according to claim 2, it is characterized in that: the described pump housing comprises pump head, pump head fixed base, guide piston and plunger rod locking device, the first end of described guide piston is fixedly connected with described locking spring damper by described plunger rod locking device, described pump head is fixed in described frame by described pump head fixed base, second end of described guide piston is arranged in described pump head, described pump head is provided with fluid one-way valve and feed liquor one-way valve.
5. Dual Drive solvent delivery pump according to claim 4, is characterized in that: the medial axis of the torque output shaft of the described stepper motor of same row, the medial axis of described ball screw, the medial axis of described guide piston and the medial axis of described pump head are same straight line.
6. Dual Drive solvent delivery pump according to claim 5, is characterized in that: described pump head is ceramic pump head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590609.4U CN204312267U (en) | 2014-10-13 | 2014-10-13 | Dual Drive solvent delivery pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420590609.4U CN204312267U (en) | 2014-10-13 | 2014-10-13 | Dual Drive solvent delivery pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312267U true CN204312267U (en) | 2015-05-06 |
Family
ID=53134586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420590609.4U Expired - Lifetime CN204312267U (en) | 2014-10-13 | 2014-10-13 | Dual Drive solvent delivery pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405611A (en) * | 2014-10-13 | 2015-03-11 | 成都格莱精密仪器有限公司 | Dual-drive solvent conveying pump |
| CN116538251A (en) * | 2023-06-28 | 2023-08-04 | 苏州恒瑞迦俐生生物医药科技有限公司 | Power transmission device, power unit and installation method thereof |
-
2014
- 2014-10-13 CN CN201420590609.4U patent/CN204312267U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405611A (en) * | 2014-10-13 | 2015-03-11 | 成都格莱精密仪器有限公司 | Dual-drive solvent conveying pump |
| CN116538251A (en) * | 2023-06-28 | 2023-08-04 | 苏州恒瑞迦俐生生物医药科技有限公司 | Power transmission device, power unit and installation method thereof |
| CN116538251B (en) * | 2023-06-28 | 2023-09-12 | 苏州恒瑞迦俐生生物医药科技有限公司 | Power transmission device, power unit and installation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150506 |