CN202810708U - Hydraulic driving system for oil workover elevator - Google Patents
Hydraulic driving system for oil workover elevator Download PDFInfo
- Publication number
- CN202810708U CN202810708U CN 201220356452 CN201220356452U CN202810708U CN 202810708 U CN202810708 U CN 202810708U CN 201220356452 CN201220356452 CN 201220356452 CN 201220356452 U CN201220356452 U CN 201220356452U CN 202810708 U CN202810708 U CN 202810708U
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- China
- Prior art keywords
- safety
- oil cylinders
- oil
- cylinder
- elevator
- 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 - Fee Related
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- Types And Forms Of Lifts (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model relates to a hydraulic driving system for an oil workover elevator. The hydraulic driving system comprises main oil cylinders, safety oil cylinders, one-way valves and a hydraulic control reversing valve, wherein the safety oil cylinders are connected with the hydraulic control reversing valve via hydraulic pipelines, one ends of the main oil cylinders are connected with the safety oil cylinders via hydraulic pipelines, the other ends of the main oil cylinders are connected on the hydraulic pipelines between the safety oil cylinders and the hydraulic control reversing valve, the one-way valves are arranged between the main oil cylinders and the safety oil cylinders and between the safety oil cylinders and the hydraulic control reversing valve, and springs are arranged in the safety oil cylinders. The hydraulic driving system for the oil workover elevator has the advantage that the oil workover elevator can clamp or unclamp oil tubes flexibly and is simple to operate and labor-saving, and safety of the oil workover elevator is guaranteed.
Description
Technical field
The utility model relates to a kind of petroleum well workover well face lifting servicing unit, relates in particular to a kind of fluid power system for the petroleum well workover elevator.
Background technology
During tradition oil field wellsite operation, the elevator of lifting oil pipe is pure frame for movement, and inapplicable well face automation oil turns well, well workover, and automation is the important channel of raising labour productivity.Elevator take hydraulic pressure as power is convenient to automation control, easily with sensor and its combination, is the important step that turns well and well workover automation.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model provides a kind of fluid power system for the petroleum well workover elevator, elevator is clamped oil pipe or unclamps flexibly fast, makes simple to operate, laborsaving.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of fluid power system for the petroleum well workover elevator, comprise master cylinder, safety cylinder, one way valve, pilot operated directional control valve, safety cylinder is connected with pilot operated directional control valve by fluid pressure line, master cylinder one end is connected with safety cylinder by a fluid pressure line, simultaneously its other end is connected on the fluid pressure line between safety cylinder and the pilot operated directional control valve by another fluid pressure line, be provided with one way valve between master cylinder and the safety cylinder, be connected with one way valve between safety cylinder and the pilot operated directional control valve; Be provided with spring in the described safety cylinder.
Compared with prior art, the beneficial effects of the utility model are:
Elevator is clamped oil pipe or unclamp flexibly fast, make simple to operately, laborsaving, guaranteed its safety.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Among the figure: 1-master cylinder 2-safety cylinder 3-one way valve 4-pilot operated directional control valve.
The specific embodiment
Below in conjunction with Figure of description the utility model is described in detail, but should be noted that enforcement of the present utility model is not limited to following embodiment.
See Fig. 1, a kind of fluid power system for the petroleum well workover elevator, comprise master cylinder 1, safety cylinder 2, one way valve 3, pilot operated directional control valve 4, safety cylinder 2 is connected with pilot operated directional control valve 4 by fluid pressure line, master cylinder 1 one ends are connected with safety cylinder 2 by a fluid pressure line, simultaneously its other end is connected on the fluid pressure line between safety cylinder 2 and the pilot operated directional control valve 4 by another fluid pressure line, be provided with one way valve 3 between master cylinder 1 and the safety cylinder 2, be connected with one way valve 3 between safety cylinder 2 and the pilot operated directional control valve 4; Be provided with spring in the described safety cylinder 2.
Mainly the chucking oil cylinder (safety cylinder 2) of spring, 4 one way valves 3, a pilot operated directional control valve 4 are housed form by two chucking oil cylinders (master cylinder 1), two.Two master cylinder 1 rapid movements under spring action, have been realized by one way valve 3 and chucking oil cylinder internal piston unique texture, have realized tightening and unclamping that two oil cylinders that spring is housed pass through the fast again safe operation that one way valve 3 combinations realize its whole elevator.
The utility model makes elevator clamp oil pipe or unclamps flexibly fast, makes simple to operately, laborsaving, has guaranteed its safety.
Claims (2)
1. fluid power system that is used for the petroleum well workover elevator, it is characterized in that, comprise master cylinder, safety cylinder, one way valve, pilot operated directional control valve, safety cylinder is connected with pilot operated directional control valve by fluid pressure line, master cylinder one end is connected with safety cylinder by a fluid pressure line, simultaneously its other end is connected on the fluid pressure line between safety cylinder and the pilot operated directional control valve by another fluid pressure line, be provided with one way valve between master cylinder and the safety cylinder, be connected with one way valve between safety cylinder and the pilot operated directional control valve.
2. a kind of fluid power system for the petroleum well workover elevator according to claim 1 is characterized in that, is provided with spring in the described safety cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356452 CN202810708U (en) | 2012-07-20 | 2012-07-20 | Hydraulic driving system for oil workover elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356452 CN202810708U (en) | 2012-07-20 | 2012-07-20 | Hydraulic driving system for oil workover elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202810708U true CN202810708U (en) | 2013-03-20 |
Family
ID=47869606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220356452 Expired - Fee Related CN202810708U (en) | 2012-07-20 | 2012-07-20 | Hydraulic driving system for oil workover elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202810708U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121555A (en) * | 2016-07-15 | 2016-11-16 | 宝鸡石油机械有限责任公司 | Workover rig hydraulic elevator Wireless power bag |
| CN112012675A (en) * | 2019-05-28 | 2020-12-01 | 中国石油天然气股份有限公司 | Drilling tool elevator and drilling equipment |
| CN114294274A (en) * | 2021-12-01 | 2022-04-08 | 四川宏华石油设备有限公司 | Hydraulic elevator control system and control method |
-
2012
- 2012-07-20 CN CN 201220356452 patent/CN202810708U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121555A (en) * | 2016-07-15 | 2016-11-16 | 宝鸡石油机械有限责任公司 | Workover rig hydraulic elevator Wireless power bag |
| CN106121555B (en) * | 2016-07-15 | 2018-01-23 | 宝鸡石油机械有限责任公司 | Workover rig hydraulic elevator Wireless power bag |
| CN112012675A (en) * | 2019-05-28 | 2020-12-01 | 中国石油天然气股份有限公司 | Drilling tool elevator and drilling equipment |
| CN114294274A (en) * | 2021-12-01 | 2022-04-08 | 四川宏华石油设备有限公司 | Hydraulic elevator control system and control method |
| CN114294274B (en) * | 2021-12-01 | 2024-05-24 | 四川宏华石油设备有限公司 | Hydraulic elevator control system and control method |
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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: 20130320 Termination date: 20180720 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |