CN201818455U - Plunger pump based on linkage control valve - Google Patents
Plunger pump based on linkage control valve Download PDFInfo
- Publication number
- CN201818455U CN201818455U CN2010205559851U CN201020555985U CN201818455U CN 201818455 U CN201818455 U CN 201818455U CN 2010205559851 U CN2010205559851 U CN 2010205559851U CN 201020555985 U CN201020555985 U CN 201020555985U CN 201818455 U CN201818455 U CN 201818455U
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- China
- Prior art keywords
- control valve
- suction
- control
- rod chamber
- draining
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- Expired - Fee Related
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Abstract
The utility model discloses a plunger pump based on a linkage control valve, which comprises a plunger cylinder and a double-headed piston, wherein an inner cavity of the plunger cylinder is divided through the double-headed piston into a control rod chamber, a control non-rod chamber, a suction and discharge rod chamber and a suction and discharge non-rod chamber; both the control rod chamber and the control non-rod chamber are communicated with a hydraulic reversing control unit; both the suction and discharge rod chamber and the suction and discharge non-rod chamber are connected with a working water source respectively through a suction and discharge control valve set; and the suction and discharge control valve set comprises a water-absorption control valve and a water-drainage control valve which are arranged in pair, alternately opened and provided with linked valve cores. The plunger pump based on the linkage control valve has good water absorbability, avoids the phenomenon of air suction and has the advantages of good opening-closing characteristics, reliable performance and long service life.
Description
Technical field
The utility model relates to engineering machinery field, is specifically related to a kind of plunger type water pump.
Background technique
As shown in Figure 1, the plunger type water pump of prior art comprises plunger case 1 and double-head piston 11, double-head piston 11 is divided into control rod chamber 121, control rodless cavity 122, suction rod chamber 131 and suction rodless cavity 132 with the inner chamber of plunger case 1, control rod chamber 121, control rodless cavity 122 link to each other with hydraulic pressure commutation control unit 2 respectively, suction rod chamber 131 links to each other with the work water source by a suction control valve group 3 respectively with suction rodless cavity 132, and suction control valve group 3 is made up of the opposite one-way valve of both direction.Because overcoming the elastic force of spring, this plunger type water pump negative pressure that one-way valve produces by water sucting cavity in water absorption course opens, therefore the negative pressure part of pump sump chamber generation is used to overcome the elastic force of spring, cause one-way valve to open easily and lag behind seriously, cause water-taking efficiency to descend, cause pump efficiency low, can produce emptying phenomenon when serious, influence the water pump life-span.
The model utility content
The utility model is at the shortcoming of above-mentioned prior art, provides that a kind of water absorbing properties is good, suction water valve open and close fast and reliable, can not produce the plunger type water pump based on the interlock control valve of suction phenomenon, long service life.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of plunger type water pump based on the interlock control valve, comprise plunger case and double-head piston, described double-head piston is divided into the control rod chamber with the inner chamber of plunger case, the control rodless cavity, suction rod chamber and suction rodless cavity, described control rod chamber, the control rodless cavity is connected with hydraulic pressure commutation control unit respectively, described suction rod chamber links to each other with the work water source by a suction control valve group respectively with the suction rodless cavity, and described suction control valve group comprises paired setting, replace the suction control valve and the draining control valve of the interlock of unlatching and spool.
As further improvement of the utility model:
Described suction control valve and draining control valve are the logic cartridge valve.
The spool of described suction control valve links to each other by push rod with the spool of draining control valve.
The control end of described suction control valve and the control end of draining control valve link to each other with described hydraulic pressure commutation control unit respectively, and the control end of the draining control valve in the control end of any one described suction control valve and the different suction control valve groups is connected.
Described hydraulic pressure commutation control unit comprises reversing control valve, and the input end of described reversing control valve links to each other with hydraulic oil source, and the control end of described suction control valve links to each other with the output terminal of described reversing control valve respectively with the control end of draining control valve.
Described reversing control valve is solenoid directional control valve or hydraulicchange-over valve or electric liquid combined type reversal valve.
The utlity model has following advantage: suction control valve group of the present utility model comprises paired setting and suction control valve and the draining control valve alternately opened, and the spool of suction control valve and draining control valve links and realizes quick opening and closing suction control valve and draining control valve, control rate is fast, pump efficiency is higher, can not produce emptying phenomenon, have that water absorbing properties is good, the advantage of long service life.Suction control valve and draining control valve are the logic cartridge valve, simple in structure, reliable performance, long service life; The spool of suction control valve and the spool of draining control valve link to each other by push rod, and the structure that is rigidly connected is more reliable and more stable; The control end of suction control end of control valve and draining control valve links to each other with hydraulic pressure commutation control unit respectively, and the net synchronization capability between two suction control valve groups is good, and water-taking efficiency is higher, and can improve the open and shut characteristic of absorb water control valve and draining control valve; Hydraulic pressure commutation control unit comprises reversing control valve, the input end of reversing control valve links to each other with hydraulic oil source, the control end of suction control valve and the control end of draining control valve link to each other with the output terminal of reversing control valve respectively, and the synchronism of suction control valve and draining control valve and control rod chamber, control rodless cavity is good.
Description of drawings
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is the utility model first embodiment's a structural representation;
Fig. 3 is the status architecture schematic representation of double-head piston when left movement among the utility model first embodiment;
Status architecture schematic representation when Fig. 4 moves right for double-head piston among the utility model first embodiment;
Fig. 5 is the utility model second embodiment's a structural representation;
Fig. 6 is the utility model the 3rd embodiment's a structural representation.
Marginal data: 1, plunger case; 11, double-head piston; 121, control rod chamber; 122, control rodless cavity; 131, suction rod chamber; 132, suction rodless cavity; 2, hydraulic pressure commutation control unit; 21, hydraulic operated valve; 22, reversing control valve; 3, suction control valve group; 30, spool; 31, suction control valve; 32, draining control valve; 33, the first suction control valve group; 331, the first suction control valve; 332, first draining control valve; 34, the second suction control valve group; 341, the second suction control valve; 342, second draining control valve; 4, push rod.
Embodiment
As shown in Figure 2, the utility model first embodiment's the plunger type water pump based on the interlock control valve comprises plunger case 1 and double-head piston 11, double-head piston 11 is divided into control rod chamber 121 with the inner chamber of plunger case 1, control rodless cavity 122, suction rod chamber 131 and suction rodless cavity 132, control rod chamber 121, control rodless cavity 122 is connected with hydraulic pressure commutation control unit 2 respectively, suction rod chamber 131 links to each other with the work water source by a suction control valve group 3 respectively with suction rodless cavity 132, and suction control valve group 3 comprises paired setting, replace the suction control valve 31 and the draining control valve 32 of unlatching and spool 30 interlocks.
In the present embodiment, suction control valve 31 and draining control valve 32 are the logic cartridge valve.The spool 30 of suction control valve 31 and the spool 30 of draining control valve 32 link to each other by push rod 4.The control end of suction control end of control valve 31 and draining control valve 32 links to each other with hydraulic pressure commutation control unit 2 respectively, and the control end of the draining control valve 32 in the control end of any one control valve 31 that absorbs water and the different suction control valve groups 3 is connected.In addition, the spool 30 of suction spool 30 of control valve 31 and draining control valve 32 also can be separate and be oppositely arranged, and directly promotes another spool 30 by spool 30, thereby the spool of realizing absorbing water between control valve 31 and the draining control valve 32 30 links.
In the present embodiment, hydraulic pressure commutation control unit 2 only adopts a reversing control valve 22, the input end of reversing control valve 22 and hydraulic oil source T1, P1 links to each other, the control end of suction control valve 31 and the control end of draining control valve 32 link to each other with the output terminal of reversing control valve 22 respectively, the sidepiece master mouth of two suction control valves 31 links to each other with the water sucking mouth T of plunger type water pump simultaneously, the sidepiece master mouth of two draining control valves 32 links to each other with the drain opening P of plunger type water pump simultaneously, and end master's mouth of suction control valve 31 and end master's mouth of draining control valve 32 are connected with suction rod chamber 131 or suction rodless cavity 132 jointly in the same suction control valve group 3.Reversing control valve 22 is solenoid directional control valve or hydraulicchange-over valve or electric liquid combined type reversal valve, and reversing control valve 22 is a solenoid directional control valve in the present embodiment.
As shown in Figure 3 and Figure 4, the suction control valve group 3 of present embodiment is made up of the first suction control valve group 33 and the second suction control valve group 34, the first suction control valve group 33 is made up of the first suction control valve 331 and first draining control valve 332, and the second suction control valve group 34 is made up of the second suction control valve 341 and second draining control valve 342.
The working procedure of present embodiment is as follows: as shown in Figure 3, reversing control valve 22 not electricly be in right position, 121 oil-feeds of control rod chamber, control rodless cavity 122 is fuel-displaced, double-head piston 11 is to left movement.This moment first, the suction control valve 331 and second draining control valve 342 were connected high pressure oil, first draining control valve 332 and the second suction control valve 341 are connected low pressure oil, the first suction control valve 331 and second draining control valve 342 are closed, and by push rod 4 first draining control valve 332 and the second suction control valve 341 are opened respectively simultaneously.Since the promotion of double-head piston 11, thus realize suction rod chamber 131 by 332 drainings of first draining control valve, and suction rodless cavity 132 is by 341 suctions of the second suction control valve; As shown in Figure 4, reversing control valve 22 gets the electric position, a left side that is in, 122 oil-feeds of control rodless cavity, and control rod chamber 121 is fuel-displaced, and double-head piston 11 moves right.This moment, first draining control valve 332 and the second suction control valve 341 were connected high pressure oil, the first suction control valve 331 and second draining control valve 342 are connected low pressure oil, first draining control valve 332 and the second suction control valve 341 are closed, and by push rod 4 the first suction control valve 331 and second draining control valve 342 are opened respectively simultaneously.Since the promotion of double-head piston 11, thus realize suction rod chamber 131 by 331 suctions of the first suction control valve, and suction rodless cavity 132 is by 342 drainings of second draining control valve.So, replace suction control valve 31 and the draining control valve 32 opened, thereby realize continuous pump water by the iterative motion of double-head piston 11.
As shown in Figure 5, the utility model second embodiment's the plunger type water pump and first embodiment based on the interlock control valve are basic identical, its difference is: hydraulic pressure commutation control unit 2 is made up of hydraulic operated valve 21 and reversing control valve 22, the output terminal of hydraulic operated valve 21 respectively with control rod chamber 121, control rodless cavity 122 is connected, the input end of hydraulic operated valve 21, the input end of reversing control valve 22 respectively with hydraulic oil source T1, P1 is connected, the control end of hydraulic operated valve 21 is connected with the output terminal of reversing control valve 22 respectively, the control end of suction control valve 31 and the control end of draining control valve 32 link to each other with the output terminal of reversing control valve 22 respectively, and the working procedure of present embodiment is identical with first embodiment.
As shown in Figure 6, the utility model the 3rd embodiment's the plunger type water pump and first embodiment based on the interlock control valve are basic identical, its difference is: the control end of suction control valve 31 and the control end of draining control valve 32 link to each other with outside oil sources T1 ', P2 ' respectively, and the working procedure of present embodiment is identical with first embodiment.
The above only is a preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to the foregoing description, and all technological schemes that belongs under the utility model thinking all belong to protection domain of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
- One kind based on the interlock control valve plunger type water pump, comprise plunger case (1) and double-head piston (11), described double-head piston (11) is divided into control rod chamber (121) with the inner chamber of plunger case (1), control rodless cavity (122), suction rod chamber (131) and suction rodless cavity (132), described control rod chamber (121), control rodless cavity (122) is connected with hydraulic pressure commutation control unit (2) respectively, described suction rod chamber (131) links to each other with the work water source by a suction control valve group (3) respectively with suction rodless cavity (132), and it is characterized in that: described suction control valve group (3) comprises paired setting, replace the suction control valve (31) and the draining control valve (32) of the interlock of unlatching and spool (30).
- 2. the plunger type water pump based on the interlock control valve according to claim 1, it is characterized in that: described suction control valve (31) and draining control valve (32) are the logic cartridge valve.
- 3. the plunger type water pump based on the interlock control valve according to claim 2, it is characterized in that: the spool (30) of described suction control valve (31) and the spool (30) of draining control valve (32) link to each other by push rod (4).
- 4. according to claim 1 or 2 or 3 described plunger type water pumps based on the interlock control valve, it is characterized in that: the control end of the control end of described suction control valve (31) and draining control valve (32) links to each other with described hydraulic pressure commutation control unit (2) respectively, and the control end of the draining control valve (32) in the control end of any one described suction control valve (31) and the different suction control valve groups (3) is connected.
- 5. the plunger type water pump based on the interlock control valve according to claim 4, it is characterized in that: described hydraulic pressure commutation control unit (2) comprises reversing control valve (22), the input end of described reversing control valve (22) links to each other with hydraulic oil source, and the control end of the control end of described suction control valve (31) and draining control valve (32) links to each other with the output terminal of described reversing control valve (22) respectively.
- 6. the plunger type water pump based on the interlock control valve according to claim 5, it is characterized in that: described reversing control valve (22) is solenoid directional control valve or hydraulicchange-over valve or electric liquid combined type reversal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559851U CN201818455U (en) | 2010-10-11 | 2010-10-11 | Plunger pump based on linkage control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205559851U CN201818455U (en) | 2010-10-11 | 2010-10-11 | Plunger pump based on linkage control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201818455U true CN201818455U (en) | 2011-05-04 |
Family
ID=43916412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205559851U Expired - Fee Related CN201818455U (en) | 2010-10-11 | 2010-10-11 | Plunger pump based on linkage control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201818455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368922A (en) * | 2015-07-22 | 2017-02-01 | 昆明耀成科技有限公司 | Single-output volumetric water feed pump for high-pressure boiler |
-
2010
- 2010-10-11 CN CN2010205559851U patent/CN201818455U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368922A (en) * | 2015-07-22 | 2017-02-01 | 昆明耀成科技有限公司 | Single-output volumetric water feed pump for high-pressure boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SANY AUTOMOBILE MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SANYI HEAVY INDUSTRY CO LTD Effective date: 20130506 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130506 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan, Changsha Patentee before: Sanyi Heavy Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20161011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |