CN201963535U - Hydraulic ratio control type adjusting device for proportioning pump - Google Patents
Hydraulic ratio control type adjusting device for proportioning pump Download PDFInfo
- Publication number
- CN201963535U CN201963535U CN2010206872364U CN201020687236U CN201963535U CN 201963535 U CN201963535 U CN 201963535U CN 2010206872364 U CN2010206872364 U CN 2010206872364U CN 201020687236 U CN201020687236 U CN 201020687236U CN 201963535 U CN201963535 U CN 201963535U
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- adjusting
- regulating
- dosing pump
- fluid cylinder
- controlling device
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Abstract
A hydraulic ratio control type adjusting device for a proportioning pump is arranged at the front end of the proportioning pump and comprises a valve body, an adjusting hydraulic cylinder and an adjusting plunger piston, wherein the valve body is arranged on a side wall of the adjusting hydraulic cylinder, realizes liquid communication with the adjusting hydraulic cylinder, comprises an adjusting screw plug, a valve body seat, an adjusting sleeve body, an inner scale sleeve, an outer scale sleeve and a sealing block, and is fixed on the side wall of the adjusting hydraulic cylinder through the valve body seat; the adjusting sleeve body is fixed on an adjusting valve seat; the adjusting sleeve body is fixedly sleeved with the inner scale sleeve; the inner scale sleeve is sleeved with the outer scale sleeve and connected with the outer scale sleeve through threads; the adjusting screw plug is arranged in the adjusting sleeve body; the upper end of the adjusting screw plug extends out from the adjusting sleeve body and is fixedly connected with the outer adjusting sleeve; one end of an adjusting piston is arranged in the adjusting hydraulic cylinder; and the other end of the adjusting piston extends into a medium cavity of the proportioning pump from the adjusting hydraulic cylinder.
Description
Technical field
The utility model designs a kind of dosing pump controlling device, particularly a kind of hydraulic proportional regulating type controlling device.
Background technique
As everyone knows, dosing pump mainly is made up of Power Drive Unit, fluid delivery system and control set for adjusting three parts.Power Drive Unit changes straight reciprocating motion into via the connecting rod realization by rotatablely moving.Liquid transporting apparatus is the relative volume-variation with the fluid cylinder stroke of plunger, and the effect by the pump terminal valve reaches suction liquid purpose.The control set for adjusting of pump is effective suction volume of control pump, reaches the purpose of control pump flow.The working principle that dosing pump is regulated in bypass is: half cycle will be transferred the fluid suction and in second half fluid be discharged pump head before during the crank rotation; So, the reciprocating pump crank whenever rotates a circle suction liquid once, the flow of pump and plunger diameter, length of stroke, reciprocating frequency are relevant, change pump plunger diameter, reciprocating frequency, reciprocating length of stroke can reach to the purpose of regulated fluid quantity delivered each time.And the bypass adjusting is exactly the effective stroke volume that changes pump.Now, a lot of Project Realization Flow-rate adjustment adopt metering pump mostly, by length of stroke manually is set, frequency conversion changes stroke frequency and regulates flow, but because the metering pump complex structure, uses, operating cost is higher, influenced the further popularization of this product, for this reason, we have designed this new-type structure, dosing pump bypass ratio control device.
The model utility content
At dosing pump complex structure of the prior art, take up an area of big and shortcoming such as cost an arm and a leg, the utility model provides a kind of hydraulic proportional regulating type dosing pump ratio control device: a kind of hydraulic proportional regulating type dosing pump controlling device, and this controlling device is arranged on the dosing pump front end; Comprise valve body, regulate fluid cylinder, pilot plunger, described valve body is arranged on the sidewall of described adjusting fluid cylinder; And and described adjusting fluid cylinder between realize fluid communication; Described valve body comprises: regulate plug screw, valve block, adjusting body, interior scale cover, EXT scale cover, sealing block; Valve body is fixed on the sidewall of described adjusting fluid cylinder by described valve block, described adjusting body is fixedly installed on the regulating valve seat, regulating body is the tubular article of both ends open, its external stability is with described interior scale cover, described EXT scale cover is enclosed within the outside of interior scale cover, and is connected with interior scale cover by screw thread; Described adjusting plug screw is arranged on to be regulated in the body, also is provided with described sealing block on it, regulates the lower end shape of plug screw and the shape of described regulating valve seat through hole and matches; Regulate the upper end of plug screw and stretch out by regulating in the body, and fixedly connected with outer adjustment sleeve, an end of regulating piston is arranged on to be regulated in the fluid cylinder, and the other end enters into the dosing pump media cavity by regulating to stretch out in the fluid cylinder.
Further, the other end of described adjusting fluid cylinder is provided with guiding and stops up, and described guiding is stopped up and had directional post.
Further, also be provided with spring between described pilot plunger and the adjusting fluid cylinder.
Further, described pilot plunger also is provided with sealing case by regulating on the fluid cylinder section of stretching out.
Further, have scale on the outer surface of described interior scale cover.
Further, described adjusting plug screw is by pin, and bolt is fixedlyed connected with outer adjustment sleeve.
Further, the axis of the axis of described regulating piston and the piston in the dosing pump is a same straight line.
Disclosed hydraulic proportional regulating type dosing pump controlling device can with the actual volume of change pump plunger motion, thereby reach the purpose of regulating pump duty by regulating hydraulic plunger stroke length in the controlling device in the utility model.By using this device can simplify dosing pump controlling mechanism structure, make that the dosing pump overall structure is simple takes up an area of little and cost is very low.This controlling device adopts hydro-cushion principle design, regulates with mechanical proportional and compares, and it is more steady to have a running, and noise is low, characteristics such as long service life.
Description of drawings
Fig. 1 is the dosing pump structural representation that has assembled hydraulic proportional regulating type dosing pump controlling device;
Fig. 2 is a hydraulic proportional regulating type dosing pump controlling device structural representation.
Embodiment
As shown in Fig. 1,2, hydraulic proportional controlling device 4 is arranged on the front end of dosing pump 7 in the utility model, and this controlling device comprises valve body 1, regulates fluid cylinder 2, pilot plunger 3.Valve body 1 comprises: regulate plug screw 11, adjusting body 13, interior scale cover 14, EXT scale cover 15, sealing block 16.Valve body 1 is fixed on the sidewall of regulating fluid cylinder 2, on have with regulate fluid cylinder 2 sidewalls on the identical through hole of hole size, and realize fluid communication by being arranged between through hole on the sidewall of regulating fluid cylinder 2 and the adjusting fluid cylinder 2.Regulating body 13 is the tubular article of both ends open, and the one end has clamping flange, and valve body 1 is fixed on the sidewall of regulating fluid cylinder by regulating body 13.The external stability of regulating body 13 is with interior scale cover 14, has scale on the outer surface of interior scale cover 14, is used for accurate regulating and controlling amount; Scale overlapped 14 outside in EXT scale cover 15 was enclosed within, and was connected by screw thread and interior scale cover 14, rotated EXT scale cover 15, and by threaded function, EXT scale cover 15 can overlap 14 with respect to interior scale and move up and down.Regulate plug screw 11 and be arranged on and regulate in the body 13, the lower end of regulating plug screw 11 closely cooperates with the lower end internal surface of regulating body 13, regulate on the plug screw 11 and also be provided with sealing block 16, sealing block 16 act as the leak of liquid that prevents to regulate in the fluid cylinder 2.When controlling device 4 was in closed condition, the bottom surface of regulating plug screw 11 was concordant with the bottom surface of regulating body 13.Regulate the upper end of plug screw 11 and stretch out, and by pin, modes such as bolt are fixedlyed connected with outer adjustment sleeve 15, and can overlap 15 with EXT scale and move up and down by regulating in the body 13.
One end of regulating piston 3 is arranged on to be regulated in the fluid cylinder 2, and the other end enters into dosing pump media cavity 5 by regulating to stretch out in the fluid cylinder 2, its axis and with dosing pump in the axis of piston 6 on same straight line.The other end of regulating fluid cylinder 2 is provided with guiding and stops up 21, and guiding is stopped up 21 and had directional post 21a, and directional post 21a can be inserted in the regulating piston, and leading role is played in the motion of pilot plunger 3.Also be provided with spring 22 between pilot plunger 3 and the adjusting fluid cylinder, the effect of spring 22 is that auxiliary adjustment plunger 3 is got back to initial position after finishing an operation cycle.Also be provided with sealing case 23 in pilot plunger 3 by regulating on fluid cylinder 2 sections of stretching out, sealing case 23 can play seal action respectively to regulating fluid cylinder 2 and dosing pump media cavity 5 simultaneously, prevents to regulate the leaked liquid in fluid cylinder 2 and the dosing pump media cavity 5.
During work, at first, EXT scale cover 15 is positioned at initial position, is full of hydraulic oil in regulating fluid cylinder 2, and is forced into the working pressure of dosing pump 5, and this moment, pilot plunger 3 was arranged in Fig. 1 position, and the volume of regulating fluid cylinder 2 is the maximum volume of itself.Then, as shown in Figure 2, according to need of work EXT scale cover 15 upwards is adjusted to default scale position with respect to interior scale cover 14, regulates plug screw 11, regulate fluid cylinder 2 volumes and strengthen along with EXT scale cover 15 moves up, make and regulate fluid pressure reduction in the fluid cylinder 2, under the 5 alternating pressure effects of dosing pump media cavity, pilot plunger 3 setting in motions are when moving to certain position, when fluid pressure in the adjusting fluid cylinder 2 and 5 pressure balances of dosing pump media cavity, pilot plunger 3 stop motions.For example, the swept volume of dosing pump media cavity is 10L, and when ratio control device 4 not being set, each dosing pump sucks with the medium amount of discharging and is 10L.After ratio control device was set, the volume that makes ratio control device regulate fluid cylinder by regulation valve body had increased 2L.When dosing pump is discharged medium, because regulating the volume of fluid cylinder, ratio control device increases, so the fluid pressure in it reduces, because the hydraulic pressure in the media cavity is greater than the hydraulic pressure in the ratio control device adjusting fluid cylinder, so pilot plunger is moved with the dosing pump plunger, when the pressure in hydraulic pressure cavity is identical with pressure in the media cavity, be the fluid pressure in the hydraulic pressure cavity because the rollback of pilot plunger has reached the working pressure in the dosing pump media cavity, that is to say because the rollback of pilot plunger is transferred in the media cavity of dosing pump the 2L that increases by valve body.Though the dosing pump piston is positioned at the limit position when discharging medium like this, because the needs of the mobile and fluid pressure balance of the regulating piston of ratio control device have only the 8L medium by discharging in the media cavity, 2L still is retained in the media cavity of dosing pump in addition.After this, the dosing pump medium that sucks at every turn and discharge is 8L.Have this as seen, by disclosed hydraulic proportional regulating type dosing pump controlling device in the utility model effectively the Comparative Examples pump displacement regulate.
Claims (7)
1. hydraulic proportional regulating type dosing pump controlling device, this controlling device is arranged on the dosing pump front end; It is characterized by, this controlling device comprises valve body, regulates fluid cylinder, pilot plunger, and described valve body is arranged on the sidewall of described adjusting fluid cylinder; And and described adjusting fluid cylinder between realize fluid communication; Described valve body comprises: regulate plug screw, valve block, adjusting body, interior scale cover, EXT scale cover, sealing block; Valve body is fixed on the sidewall of described adjusting fluid cylinder by described valve block, described adjusting body is fixedly installed on the regulating valve seat, regulating body is the tubular article of both ends open, its external stability is with described interior scale cover, described EXT scale cover is enclosed within the outside of interior scale cover, and is connected with interior scale cover by screw thread; Described adjusting plug screw is arranged on to be regulated in the body, also is provided with described sealing block on it, regulates the lower end shape of plug screw and the shape of described regulating valve seat through hole and matches; Regulate the upper end of plug screw and stretch out by regulating in the body, and fixedly connected with outer adjustment sleeve, an end of regulating piston is arranged on to be regulated in the fluid cylinder, and the other end enters into the dosing pump media cavity by regulating to stretch out in the fluid cylinder.
2. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, the other end of described adjusting fluid cylinder is provided with guiding and stops up, and described guiding is stopped up and had directional post.
3. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, also be provided with spring between described pilot plunger and the adjusting fluid cylinder.
4. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, described pilot plunger also is provided with sealing case by regulating on the fluid cylinder section of stretching out.
5. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, have scale on the outer surface of described interior scale cover.
6. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, described adjusting plug screw is by pin, and bolt is fixedlyed connected with outer adjustment sleeve.
7. according to the regulating type of hydraulic proportional described in the claim 1 dosing pump controlling device, it is characterized by, the axis of described regulating piston and the axis of the piston in the dosing pump are same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206872364U CN201963535U (en) | 2010-12-29 | 2010-12-29 | Hydraulic ratio control type adjusting device for proportioning pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206872364U CN201963535U (en) | 2010-12-29 | 2010-12-29 | Hydraulic ratio control type adjusting device for proportioning pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201963535U true CN201963535U (en) | 2011-09-07 |
Family
ID=44526071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206872364U Expired - Lifetime CN201963535U (en) | 2010-12-29 | 2010-12-29 | Hydraulic ratio control type adjusting device for proportioning pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201963535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527439A (en) * | 2013-10-31 | 2014-01-22 | 陕西航天动力高科技股份有限公司 | Injecting device |
| CN104234994A (en) * | 2014-09-22 | 2014-12-24 | 杨文升 | High-precision proportional regulating pump |
-
2010
- 2010-12-29 CN CN2010206872364U patent/CN201963535U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527439A (en) * | 2013-10-31 | 2014-01-22 | 陕西航天动力高科技股份有限公司 | Injecting device |
| CN103527439B (en) * | 2013-10-31 | 2016-09-07 | 陕西航天动力高科技股份有限公司 | A kind of filling apparatus |
| CN104234994A (en) * | 2014-09-22 | 2014-12-24 | 杨文升 | High-precision proportional regulating pump |
| CN104234994B (en) * | 2014-09-22 | 2017-04-26 | 杨文升 | High-precision proportional regulating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160526 Address after: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee after: Daqing Dafeng Energy Technology Service Co., Ltd. Address before: 163316 No. 234, Daqing hi tech Development Zone, Heilongjiang, Jianshe Road Patentee before: Daqing Demeiteer Pump Manufacture Co., Ltd. Patentee before: Wanaopu (Beijing) Petroleum Engineering Technology Development Research Institute Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20170908 Address after: 163316 No. 28-4 Xinfa street, Daqing Development Zone, Heilongjiang, China Patentee after: Daqing demeitel Technology Co., Ltd. Address before: 163316 No. 28 Xinfa street, hi tech Development Zone, Heilongjiang, Daqing Patentee before: Daqing Dafeng Energy Technology Service Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |