CN104088785A - Hydraulic motor driving device - Google Patents
Hydraulic motor driving device Download PDFInfo
- Publication number
- CN104088785A CN104088785A CN201410297787.2A CN201410297787A CN104088785A CN 104088785 A CN104088785 A CN 104088785A CN 201410297787 A CN201410297787 A CN 201410297787A CN 104088785 A CN104088785 A CN 104088785A
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- hydraulic
- hydraulic motor
- driving device
- oil
- motor
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Abstract
The invention discloses a hydraulic motor driving device which comprises a hydraulic motor, a speed reduction device, a sealing device and a hydraulic pump station, wherein the hydraulic motor is connected to the hydraulic pump station, and the hydraulic pump station is used for supplying pressure oil; the hydraulic motor transmits power to an oil-sucking rod column through the speed reduction device and drives an underground screw pump to rotate; the hydraulic motor driving device further comprises a hydraulic braking system for directly controlling the reverse rotating speed through a hydraulic loop. Due to high automation degree, the hydraulic motor driving device can realize unattended operation; one pump station can drive multiple driving devices to work; the hydraulic motor driving device has considerable advantage when being used on a sealed oil well; a reverse rotation prevention device does not need to be independently designed, so that the appearance structure of a screw pump ground driving device is simplified; the hydraulic motor driving device can be widely applied to driving of an oil field screw pump.
Description
Technical field
The invention belongs to hydraulic machinery technical field, particularly a kind of driving device for hydraulic motor.
Background technique
Screw pump is to rely on the pump housing and the formed engagement spatial volume of screw rod to change and the mobile rotary pump of carrying liquid or making it supercharging.Screw pump is divided into helical rotor pump, two screw pump and three screw pump etc. by screw rod number.The working principle of screw pump is similar to gear pump, just structurally with screw rod, has replaced gear.Due to the intermeshing and screw rod of each screw rod and closely cooperating of lining inwall, between pump intake and exhaust port, will be separated into one or more seal spacies.Rotation and engagement along with screw rod, these seal spacies constantly form in the suction side of pump, wherein liquid-filled by suction chamber, and pass continuously to exhaust end along screw axial from suction chamber, the liquid being enclosed in each space is constantly discharged, the situation of constantly being pushed ahead when the thread-whirling just as a nut.Flow and the pressure pulse of screw pump are very little, and noise and vibration is little, has suction capacity, but screw rod processing is more difficult.Pump has single-suction and two kinds of structures of double-sucking type, but helical rotor pump only has single-suction.Pump must be worn safety valve (helical rotor pump needn't be worn), to prevent that obstruction makes delivery side of pump pressure surpass admissible value and damage pump or prime mover as discharge tube for a certain reason.
From screw pump product, since oil field is used at home, the structural type of the screw pump ground driving device of domestic screw pump manufacturer production is substantially identical, also all can meet field produces needs.In recent years, each manufacturer, from the viewpoint of energy-conservation and Security, carried out the development of high-side driver device, as permanent magnet direct-drive drive unit, and hydraulic reverse turning-proof drive unit etc.But these drive units remain, take motor as power source provides power, in the application that realizes automation control and infill well, still have difficulties.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of screw pump driving device for hydraulic motor, hydraulic transmission technology based on ripe, it easily is automated control, can realize a pumping plant driving plurality drive unit interlock simultaneously, on encryption oil well, uses and has sizable advantage.
A kind of driving device for hydraulic motor disclosed by the invention, comprises oil hydraulic motor, speed reducer, seal arrangement and hydraulic power unit.Oil hydraulic motor is connected to hydraulic power unit, by hydraulic power unit, supplies with pressure oil; Oil hydraulic motor by speed reducer by transmission of power to rod string, drive subsurface progressive cavity running.
As the further improvement of technique scheme, described hydraulic power unit comprises fuel tank, motor and hydraulic element.
As the further improvement of technique scheme, described driving device for hydraulic motor also comprises hydraulic braking sytem, by oil hydraulic circuit, directly controls reversion rotating speed.
Driving device for hydraulic motor disclosed by the invention has the following advantages:
1, this driving device for hydraulic motor, because its automaticity is high, can realize unmanned.
2, can realize a pumping plant driving plurality drive unit interlock, on encryption oil well, use and also have sizable advantage.
3, do not need to design separately anti-reverse mechanism, simplified the form structure of screw pump ground driving device.
Driving device for hydraulic motor of the present invention has above advantage, can be widely used in the driving of Screw Pump of Oil Field.
Accompanying drawing explanation
Fig. 1 is the structural representation of driving device for hydraulic motor of the present invention;
Fig. 2 is the hydraulic control system schematic diagram of driving device for hydraulic motor of the present invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of driving device for hydraulic motor that the present invention is proposed is elaborated.
As shown in Figure 1, driving device for hydraulic motor disclosed by the invention, comprises oil hydraulic motor 1, speed reducer 2, seal arrangement 3 and hydraulic power unit 4.Fluid motor-driven has replaced original motor direct-drive as power take-off, makes the lighter compactness of whole surface drive.Oil hydraulic motor 1 is connected to hydraulic power unit 4, by hydraulic power unit 4, supplies with pressure oil; Oil hydraulic motor 1 by speed reducer 2 by transmission of power to rod string, drive subsurface progressive cavity running.Hydraulic power unit 4 is integrated fuel tank, motor and hydraulic element.Described driving device for hydraulic motor also comprises hydraulic braking sytem, by oil hydraulic circuit, directly controls reversion rotating speed.
A whole set of ground system is simple in structure, automaticity is high, functional reliability is high.
As shown in Figure 2, hydraulic braking sytem comprises:
The working principle of hydraulic braking sytem: motor 5, Variable plunger pump 6, relief valve 7, filter 8, pilot operated directional control valve 9, proportional velocity regulating valve 10, fixed displacement motor 11, relay 12, high-pressure ball valve 13, series flow control valve 14, hand duplex pump motor 15, fuel tank 16, proportional pressure control valve 17 and solenoid directional control valve 18.
Hydraulic braking sytem working principle:
1, during forward, solenoid directional control valve 18 left position work, pilot operated directional control valve 9 left position work, proportional pressure control valve 17 is according to input signal regulating system working pressure value, make Variable plunger pump output high pressure oil, high pressure oil enters fixed displacement motor 11 pressure hydraulic fluid ports through filter 8, proportional velocity regulating valve 10, and high pressure oil drives fixed displacement motor 11 to rotate and then screw pump starts to recover the oil.Fixed displacement motor 11 oil returns are through the left position of pilot operated directional control valve 9, and return oil filter is to fuel tank 16.
While 2, having electricity reversion to discharge, solenoid directional control valve 18 right position work, pilot operated directional control valve 9 right position work, proportional pressure control valve 17 is according to input signal regulating system working pressure value, make Variable plunger pump 6 output low pressure oil (meeting the oil pressure that supplements needs to motor), low pressure oil enters fixed displacement motor 11 low pressure hydraulic fluid ports through the right position of pilot operated directional control valve 9, screw pump drives motor output high pressure oil, and high pressure oil is through proportional velocity regulating valve 10, the right position of pilot operated directional control valve 9, and return oil filter is to fuel tank 16.
While 3, having a power failure reversion release, solenoid directional control valve 18 is in meta, and pilot operated directional control valve 9 is in meta, and Variable plunger pump 6 is without pressure oil output, and proportional velocity regulating valve 10 valve ports are closed.Hand duplex pump motor 15 output low pressure oil, give motor repairing, low pressure oil enters fixed displacement motor 11 low pressure hydraulic fluid ports, screw pump drives motor output high pressure oil, high pressure oil enters the motor pressure hydraulic fluid port of hand duplex pump motor 15 through high-pressure ball valve 13, series flow control valve 14, motor driving manual pump rotates, and low pressure hydraulic fluid port output fluid is got back to fuel tank 16.
Claims (3)
1. a driving device for hydraulic motor, is characterized in that: comprise oil hydraulic motor (1), speed reducer (2), seal arrangement (3) and hydraulic power unit (4); Oil hydraulic motor (1) is connected to hydraulic power unit (4), by hydraulic power unit (4), supplies with pressure oil; Oil hydraulic motor (1) by speed reducer (2) by transmission of power to rod string, drive subsurface progressive cavity running.
2. driving device for hydraulic motor according to claim 1, is characterized in that: described hydraulic power unit (4) comprises fuel tank, motor and hydraulic element.
3. driving device for hydraulic motor according to claim 2, is characterized in that: described driving device for hydraulic motor also comprises hydraulic braking sytem, by oil hydraulic circuit, directly controls reversion rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297787.2A CN104088785A (en) | 2014-06-29 | 2014-06-29 | Hydraulic motor driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410297787.2A CN104088785A (en) | 2014-06-29 | 2014-06-29 | Hydraulic motor driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104088785A true CN104088785A (en) | 2014-10-08 |
Family
ID=51636530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410297787.2A Pending CN104088785A (en) | 2014-06-29 | 2014-06-29 | Hydraulic motor driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104088785A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329043A (en) * | 2014-10-16 | 2015-02-04 | 克拉玛依市尚正石油科技有限公司 | Annulus logging well head equipment for oil well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386654A (en) * | 1981-05-11 | 1983-06-07 | Becker John A | Hydraulically operated downhole oil well pump |
| CN2555430Y (en) * | 2002-07-26 | 2003-06-11 | 大庆油田有限责任公司 | Hydraulic screw pump driving gear |
| CN2674149Y (en) * | 2004-01-04 | 2005-01-26 | 赵桂兰 | Ground driving means for hydraulic transmission screw rod pump |
| CN204099191U (en) * | 2014-06-29 | 2015-01-14 | 南京蒙福液压机械有限公司 | A kind of driving device for hydraulic motor |
-
2014
- 2014-06-29 CN CN201410297787.2A patent/CN104088785A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4386654A (en) * | 1981-05-11 | 1983-06-07 | Becker John A | Hydraulically operated downhole oil well pump |
| CN2555430Y (en) * | 2002-07-26 | 2003-06-11 | 大庆油田有限责任公司 | Hydraulic screw pump driving gear |
| CN2674149Y (en) * | 2004-01-04 | 2005-01-26 | 赵桂兰 | Ground driving means for hydraulic transmission screw rod pump |
| CN204099191U (en) * | 2014-06-29 | 2015-01-14 | 南京蒙福液压机械有限公司 | A kind of driving device for hydraulic motor |
Non-Patent Citations (1)
| Title |
|---|
| 刘强等: "采油螺杆泵液压马达驱动装置", 《机械工程师》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329043A (en) * | 2014-10-16 | 2015-02-04 | 克拉玛依市尚正石油科技有限公司 | Annulus logging well head equipment for oil well |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141008 |