CN205154524U - Hydraulic pressure positive displacement pump - Google Patents
Hydraulic pressure positive displacement pump Download PDFInfo
- Publication number
- CN205154524U CN205154524U CN201520863708.XU CN201520863708U CN205154524U CN 205154524 U CN205154524 U CN 205154524U CN 201520863708 U CN201520863708 U CN 201520863708U CN 205154524 U CN205154524 U CN 205154524U
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- CN
- China
- Prior art keywords
- piston
- way valve
- displacement pump
- positive displacement
- hydraulic pressure
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Abstract
The utility model relates to a hydraulic pressure positive displacement pump, including pneumatic cylinder, piston, piston rod, power pipe, fluid -discharge tube and check valve, the cylinder opening looks opposite direction set of first pneumatic cylinder and second pneumatic cylinder, first piston and second piston are connected respectively to the both ends of piston rod, the end of first pneumatic cylinder passes through the connecting pipe and connects the second check valve, and the one end that first pneumatic cylinder is close to the separation part in middle section is connected with first power pipe, the export and the second fluid -discharge tube of the end -to -end connection third check valve of second pneumatic cylinder, the one end that the second pneumatic cylinder is close to the separation part in middle section is connected with second power pipe, first check valve communicates with each other with respective export of second check valve and leakage fluid dram, and third check valve and the respective entry of fourth check valve communicate with each other with liquid suction port, and the entry of first check valve passes through the export that the third check valve is connected to the second fluid -discharge tube, and the export of fourth check valve is connected to the entry of second check valve through first fluid -discharge tube. This hydraulic pressure positive displacement pump has realized imbibition, flowing back and has gone on in step.
Description
Technical field
The utility model relates to a kind of oil hydraulic pump utilizing hydraulic power to carry out discharge opeing, specifically a kind of hydraulic pressure positive displacement pump.
Background technique
The hydraulic power that utilizes used in present stage is carried out in the oil hydraulic pump of discharge opeing, and the little stroke of general employing or the unidirectional drainage structure of Long Distances, exist inefficient problem, also there is the problem that cannot meet the special operation condition requirements such as deep-well discharge opeing.In addition, rigidly connected mode due to what adopt between the piston rod of existing hydraulic pressure positive displacement pump and piston, there is easily eccentric situation between piston rod and piston, cause between piston and Barrel of Hydraulic Cylinders, producing eccentric friction, thus affect the problem of positive displacement pump operating life.
Based on this, special proposition the utility model.
Summary of the invention
In order to overcome the problems referred to above that prior art exists, the utility model provides a kind of hydraulic pressure positive displacement pump, can realize imbibition, discharge opeing and synchronously carry out, increase substantially discharge opeing efficiency.
The technical solution of the utility model is as follows:
A kind of hydraulic pressure positive displacement pump, comprise oil hydraulic cylinder, piston, piston rod, power pipe, liquid-discharging tube and one-way valve, the relative setting of cylinder barrel opening of the first oil hydraulic cylinder and the second oil hydraulic cylinder, and separated by barrier component, piston rod also can slide through barrier component in barrier component, and the two ends of piston rod connect first piston and the second piston respectively; The end of the first oil hydraulic cylinder connects entrance and first liquid-discharging tube of the second one-way valve, and the first oil hydraulic cylinder is connected with the first power pipe near one end of the barrier component in stage casing; The end of the second oil hydraulic cylinder connects outlet and second liquid-discharging tube of the 3rd one-way valve, and the second oil hydraulic cylinder is connected with the second power pipe near one end of the barrier component in stage casing; First one-way valve communicates with liquid port with the outlet separately of the second one-way valve, 3rd one-way valve and the 4th one-way valve entrance separately communicate with liquid sucting port, the entrance of the first one-way valve connects the outlet of the 3rd one-way valve by the second liquid-discharging tube, the entrance of the second one-way valve connects the outlet of the 4th one-way valve by the first liquid-discharging tube.
Further, described barrier component is cylinder barrel connector.
Preferably, the two ends of described piston rod are connected with first piston and the second piston by universal joint.Adopt universal joint transition, form flexibly connecting between piston rod and piston, there is good anti-eccentric performance.
Preferably, the combination seal of piston ring rigid seal and seal ring flexible sealing is adopted between described piston and Barrel of Hydraulic Cylinders.Namely can improve the dust reduction capability of piston, the sealing effect of Sealing can be strengthened again.
Preferably, also comprise outer jointing jacket, for the protection of each component of positive displacement pump inside.
The beneficial effects of the utility model:
1, two oil hydraulic cylinders connect relatively, make a piston rod can connect two pistons, and make the stroke of positive displacement pump large, lifting rate is large;
2, be connected by universal joint between piston with piston rod, improve anti-eccentric ability therebetween;
3, adopt the seal form of soft or hard combination, enhance the sealing effect of piston;
4, multiple one-way valve combination, two-way discharge opeing, realizes imbibition, discharge opeing and synchronously carries out.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of a kind of hydraulic pressure positive displacement pump of the utility model.
Wherein, 1-outer jointing jacket, 2-liquid sucting port, 3-first liquid-discharging tube; 4-second piston, 5-second universal joint, 6-piston rod, 7-cylinder barrel connector; 8-first universal joint, 9-first piston, 10-first power pipe; 11-liquid port, 12-first one-way valve, 13-second one-way valve; 14-first oil hydraulic cylinder, 15-second power pipe, 16-second liquid-discharging tube; 17-second oil hydraulic cylinder, 18-the 3rd one-way valve, 19-the 4th one-way valve.
Embodiment
Below in conjunction with accompanying drawing, a kind of hydraulic pressure positive displacement pump of the utility model is described further.
As shown in Figure 1, for the structure principle chart of a kind of hydraulic pressure positive displacement pump of the utility model, hydraulic pressure positive displacement pump comprises oil hydraulic cylinder (14,17), piston (4,9), piston rod 6, power pipe (10,15), liquid-discharging tube (3,16) and one-way valve (12,13,18,19), the relative setting of cylinder barrel opening of the first oil hydraulic cylinder 14 and the second oil hydraulic cylinder 17, and separated by barrier component, piston rod 6 also can slide through barrier component in barrier component, and the two ends of piston rod 6 connect first piston 9 and the second piston 4 respectively; The end of the first oil hydraulic cylinder 14 connects the entrance of the second one-way valve 13 and the first liquid-discharging tube 3, first oil hydraulic cylinder 14 is connected with the first power pipe 10 near one end of the barrier component in stage casing; Outlet and second liquid-discharging tube 16, second oil hydraulic cylinder 17 of end connection the 3rd one-way valve 18 of the second oil hydraulic cylinder 17 are connected with the second power pipe 15 near one end of the barrier component in stage casing; The outlet respective with the second one-way valve 13 of first one-way valve 12 communicates with liquid port 11,3rd one-way valve 18 and the respective entrance of the 4th one-way valve 19 communicate with liquid sucting port 2, the entrance of the first one-way valve 12 connects the outlet of the 3rd one-way valve 18 by the second liquid-discharging tube 16, the entrance of the second one-way valve 13 connects the outlet of the 4th one-way valve 19 by the first liquid-discharging tube 3.
Described barrier component is cylinder barrel connector 7, and cylinder barrel connector 7 entirety in a tubular form, is arranged on two oil hydraulic cylinders (14,17) centre, has isolated two oil hydraulic cylinders (14,17), the power fluid between two oil hydraulic cylinders (14,17) is allowed mutually to separate.The middle part of cylinder barrel connector 7 has through hole, allows that piston rod 6 passes through and allows it to slide in through-holes.
The two ends of described piston rod 6 are connected with first piston 9 and the second piston 4 by universal joint (5,8), and the first universal joint 8 is connected with first piston 9, and the second universal joint 5 is connected with the second piston 4.Adopt universal joint transition, form flexibly connecting between piston rod 6 and piston (4,9), there is good anti-eccentric performance, significantly extend the life-span of positive displacement pump.
The combination seal of piston ring rigid seal and seal ring flexible sealing is adopted between piston (4,9) Yu oil hydraulic cylinder (14,17) cylinder barrel.Namely can improve the dust reduction capability of piston, the sealing effect of Sealing can be strengthened again.
Hydraulic pressure positive displacement pump also comprises outer jointing jacket 1, for the protection of each component of positive displacement pump inside.
The working principle of hydraulic pressure positive displacement pump of the present utility model is: hydraulic pressure resists partially two-way discharge opeing, it is a kind of operating mode combined by a piston rod, two oil hydraulic cylinders, two pistons and some one-way valves, under hydraulic power drives, two piston to-and-fro motion simultaneously, realize imbibition, discharge opeing and synchronously carry out.
The specific works flow process of hydraulic pressure positive displacement pump of the present utility model is as follows:
When the first power pipe 10 feed flow, second power pipe 15 times liquid, second piston 4 is descending, 3rd one-way valve 18 is positioned at closed condition, liquid to be discharged in second oil hydraulic cylinder 17 is opened the first one-way valve 12 by the second liquid-discharging tube 16 discharge, meanwhile, first piston 9 is descending, second one-way valve 13 is in closed condition, form negative pressure in first oil hydraulic cylinder 14, by the first liquid-discharging tube 3, the 4th one-way valve 19 suction is opened and carried out imbibition, two pistons (4,9) descending process, completes the process of the first oil hydraulic cylinder 14 imbibition, the second oil hydraulic cylinder 17 discharge opeing.
After downward storke completes, first power pipe 10 and the second power pipe 15 start commutation, second power pipe 15 feed flow, first power pipe 10 times liquid, first piston 9 is up, 4th one-way valve 19 is positioned at closed condition, liquid to be discharged in first oil hydraulic cylinder 14 is discharged by opening the second one-way valve 13, meanwhile, second piston 4 is up, first one-way valve 12 is in closed condition, negative pressure is formed in second oil hydraulic cylinder 17, 3rd one-way valve 18 is inhaled and opens and carry out imbibition, two pistons (4, 9) up process, complete the first oil hydraulic cylinder 14 discharge opeing, the process of the second oil hydraulic cylinder 17 imbibition.
First power pipe 10 and the second power pipe 15 feed flow constantly commutate, and make two oil hydraulic cylinders (14,17) constantly complete imbibition, discharge opeing stroke, thus realize efficient discharge opeing object.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the present utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (8)
1. a hydraulic pressure positive displacement pump, comprise oil hydraulic cylinder (14,17), piston (4,9), piston rod (6), power pipe (10,15), liquid-discharging tube (3,16) and one-way valve (12,13,18,19), it is characterized in that: the relative setting of cylinder barrel opening of the first oil hydraulic cylinder (14) and the second oil hydraulic cylinder (17), and separated by barrier component, piston rod (6) also can slide through barrier component in barrier component, and the two ends of piston rod (6) connect first piston (9) and the second piston (4) respectively; The end of the first oil hydraulic cylinder (14) connects entrance and first liquid-discharging tube (3) of the second one-way valve (13), and the first oil hydraulic cylinder (14) is connected with the first power pipe (10) near one end of the barrier component in stage casing; The end of the second oil hydraulic cylinder (17) connects outlet and second liquid-discharging tube (16) of the 3rd one-way valve (18), and the second oil hydraulic cylinder (17) is connected with the second power pipe (15) near one end of the barrier component in stage casing; First one-way valve (12) outlet respective with the second one-way valve (13) communicates with liquid port (11), 3rd one-way valve (18) and the respective entrance of the 4th one-way valve (19) communicate with liquid sucting port (2), the entrance of the first one-way valve (12) connects the outlet of the 3rd one-way valve (18) by the second liquid-discharging tube (16), the entrance of the second one-way valve (13) connects the outlet of the 4th one-way valve (19) by the first liquid-discharging tube (3).
2. hydraulic pressure positive displacement pump as claimed in claim 1, is characterized in that: described barrier component is cylinder barrel connector (7).
3. hydraulic pressure positive displacement pump as claimed in claim 1 or 2, is characterized in that: the two ends of described piston rod (6) are connected with first piston (9) and the second piston (4) by universal joint (8,5).
4. hydraulic pressure positive displacement pump as claimed in claim 1 or 2, is characterized in that: the combination seal adopting piston ring rigid seal and seal ring flexible sealing between described piston (4,9) Yu oil hydraulic cylinder (14,17) cylinder barrel.
5. hydraulic pressure positive displacement pump as claimed in claim 3, is characterized in that: the combination seal adopting piston ring rigid seal and seal ring flexible sealing between described piston (4,9) Yu oil hydraulic cylinder (14,17) cylinder barrel.
6. the hydraulic pressure positive displacement pump as described in claim 1 or 2 or 5, is characterized in that: also comprise outer jointing jacket (1), for the protection of each component of positive displacement pump inside.
7. hydraulic pressure positive displacement pump as claimed in claim 3, is characterized in that: also comprise outer jointing jacket (1), for the protection of each component of positive displacement pump inside.
8. hydraulic pressure positive displacement pump as claimed in claim 4, is characterized in that: also comprise outer jointing jacket (1), for the protection of each component of positive displacement pump inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863708.XU CN205154524U (en) | 2015-11-02 | 2015-11-02 | Hydraulic pressure positive displacement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863708.XU CN205154524U (en) | 2015-11-02 | 2015-11-02 | Hydraulic pressure positive displacement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154524U true CN205154524U (en) | 2016-04-13 |
Family
ID=55690228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520863708.XU Expired - Fee Related CN205154524U (en) | 2015-11-02 | 2015-11-02 | Hydraulic pressure positive displacement pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912523A (en) * | 2015-06-23 | 2015-09-16 | 中国石油集团渤海钻探工程有限公司 | Vacuum type hydraulic swabbing drainage pump |
-
2015
- 2015-11-02 CN CN201520863708.XU patent/CN205154524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912523A (en) * | 2015-06-23 | 2015-09-16 | 中国石油集团渤海钻探工程有限公司 | Vacuum type hydraulic swabbing drainage pump |
| CN104912523B (en) * | 2015-06-23 | 2017-08-01 | 中国石油集团渤海钻探工程有限公司 | Vacuum type fluid power pumping positive displacement pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |