CN201779085U - Hydraulic pump reversing mechanism - Google Patents
Hydraulic pump reversing mechanism Download PDFInfo
- Publication number
- CN201779085U CN201779085U CN2010202932756U CN201020293275U CN201779085U CN 201779085 U CN201779085 U CN 201779085U CN 2010202932756 U CN2010202932756 U CN 2010202932756U CN 201020293275 U CN201020293275 U CN 201020293275U CN 201779085 U CN201779085 U CN 201779085U
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- valve body
- main valve
- oil
- valve
- guide
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- Expired - Fee Related
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Abstract
The utility model discloses a hydraulic control device, in particular a hydraulic pump reversing mechanism. The hydraulic pump reversing mechanism comprises a main valve body with a pilot valve body; a reversing valve is arranged on two valve end covers of a main valve core respectively; two working oil ports of the main valve body are connected on a hydraulic oil cylinder respectively; concentric circular lug bosses are arranged on two circular surfaces of a piston; a hydraulic cylinder end cover is provided with circular concave holes corresponding to the circular lug bosses; the circular area outside the circular concave holes is provided with a side hole; the two circular concave holes are communicated with the working oil ports through oil pipes respectively; and the side hole is communicated with a reversing valve body through a small oil pipe. Because of hydraulic pilot control, the reversing mechanism can meet the requirement of field explosion resistance and has long service life.
Description
Technical field
The utility model relates to technical field of hydraulic, is specifically related to a kind of oil hydraulic pump changement.
Background technique
In oil-field flooding, the polymer injection displacement of reservoir oil, oil layer unblocking etc. two, tertiary oil recovery process implementing process, need the injection device of high-pressure service pump as high-pressure medium.Hydraulic reciprocating pump is because its jig frequency is low, discharge capacity is big etc. advantage, more and more is applicable to two, the demand of tertiary oil recovery technology, and its consumption also increases gradually.Present hydraulic reciprocating pump changement is that its life-span is limited by the commutation of electromagnetic priority valve control main valve, and the environment of Shi Yonging damages down easily in the open; And the use of solenoid valve can not be satisfied on-the-spot explosion-proof demand.
The model utility content
For overcoming above-mentioned technical problem, the utility model provides a kind of electromagnetic pilot that need not, and the oil hydraulic pump high pressure oil is finished the oil hydraulic pump changement of commutation automatically.
For realizing above-mentioned technical purpose, the utility model is achieved through the following technical solutions: a kind of oil hydraulic pump changement, comprise that one has the main valve body of guide's valve body, both are provided with runner in inside, be provided with main valve plug in the main valve body, be provided with guide's spool in guide's valve body, the two ends of main valve plug and guide's spool are respectively equipped with control chamber, it is characterized in that: be respectively equipped with a reversing valve on two valve end caps of main valve plug, be provided with reverse spool and Returnning spring in the reversing valve, the reversing valve valve pocket is communicated with the control chamber of guide's valve body control chamber and main valve body by runner; Two actuator ports of main valve body are connected to the two ends of a hydraulic jack, be provided with piston in the hydraulic jack, be equipped with concentric round boss on two discs of piston, cylinder ends covers and is provided with the circular shrinkage hole corresponding with round boss, circle ring area beyond the circular shrinkage hole is provided with a side opening, two circular shrinkage hole communicate with actuator port by oil pipe respectively, and side opening communicates with reverse valve body by a little oil pipe.
Described main valve body is fixedly connected on the valve connecting plate, and the valve connecting plate is provided with return opening and filler opening.
Described oil hydraulic cylinder end cap is connected on the connecting base.
The utility model is compared with conventional art, has following beneficial effect: because this changement is hydraulic pilot control, need not electromagnetic pilot, in oil-field flooding, the polymer injection displacement of reservoir oil, oil layer unblocking etc. two, tertiary oil recovery process implementing process, when using high-pressure service pump as the injection device of high-pressure medium, can satisfy on-the-spot explosion-proof demand, and long service life.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 is the structural representation of valve end caps.
Accompanying drawing 3 is the structural representation during to a side for piston motion.
Among the figure, 1, connecting base, 2, the oil hydraulic cylinder end cap, 3, the main valve end cap, 4, the commutation valve body, 5, Returnning spring, 6, little oil pipe, 7, one-way valve, 8, voltage regulation screw, 9, the main valve control chamber, 10, main valve plug, 11, main valve body, 12, guide's spool, 13, guide's valve body, 14, return opening, 15, the valve connecting plate, 16, oil pipe, 17, hydraulic jack, 18, circular shrinkage hole, 19, side opening, 20, piston, 21, round boss, 22, filler opening, 23, hyperbaric chamber, 24, reverse spool, 25, pressure adjusting spring, 26 pilot valve control chambers, T1, A1, P1, B1 is the groove in the main valve body, T2, A2, P2, B2 is the groove in guide's valve body, P3, A3, B3 is the groove in the reverse valve body.
Embodiment
Referring to accompanying drawing 1,2,3, the utility model comprises that one has the main valve body 11 of guide's valve body 13, the valve connecting plate 15 of fixedlying connected with main valve body 11 and a hydraulic jack 17.
Be provided with main valve plug 10 in the valve pocket of described main valve body 11, and be cast with A1, P1, B1, the T1 groove that communicates with main valve body 11 outside hydraulic fluid ports, described T1 groove is provided with two, lay respectively at the both sides of A1, P1, B1 groove, two T1 grooves communicate by inner flow passage, and described main valve plug 10 is provided with three shoulders; The two ends of main valve body 11 be fixedly connected with 3, two valve end caps 3 of valve end cap respectively with two main valve control chambers 9 about the end face of corresponding main valve plug 10 forms.
Be provided with guide's spool 12 in described guide's valve body 13, guide's valve body 13 is consistent with main valve body 11 structures, is provided with A2, P2, B2, T2 groove in the valve pocket, and guide's spool 12 is provided with three shoulders, and the two ends of guide's spool 12 are provided with pilot valve control chamber 26 equally; The P1 groove of main valve body 11 is communicated with by inner flow passage with the P2 groove of guide's valve body 13, and the A2 of guide's valve body 13, B2 groove are communicated with corresponding main valve control chamber 9 by inner flow passage respectively.
Be respectively equipped with reverse valve body 4 on the valve end cap 3 at main valve body 11 two ends, oppositely be provided with reverse spool 24 and Returnning spring 5 in the valve body 4, oppositely be provided with three grooves in the valve pocket of valve body 4 and be respectively P3 from outside to inside, A3, B3, oppositely the A3 groove in the valve body 4 is communicated with the pilot valve control chamber 26 of the corresponding side of guide's spool by runner, the B3 groove is by the T1 groove in an one-way valve 7 and the inner flow passage connection main valve body 11, oppositely spool 24 is provided with two shoulders, when main valve plug 10 moves to the right side, Returnning spring 5 in the reverse valve body 3 on right side is in compressive state, P3 communicates with A3, left side oppositely valve body 3 interior Returnning springs 5 is in reset mode, A3, B3 communicates.
Described valve connecting plate 14 is provided with the filler opening 22 that communicates with the A1 groove, the return opening that communicates with two T1 grooves 14 reaches the two ends that 16, two oil pipes 16 of oil pipe that communicate with 11 two actuator ports of main valve body connect a hydraulic jack 17 respectively.
Be provided with piston 20 in the described hydraulic jack 17, be equipped with concentric round boss 21 on two discs of piston 20, oil hydraulic cylinder end cap 1 is provided with the circular shrinkage hole 18 corresponding with round boss 21, circle ring area beyond the circular shrinkage hole 18 is provided with a side opening 19, circular shrinkage hole 18 communicates with oil pipe 16, and side opening 19 communicates with P3 groove in the reverse valve body by little oil pipe.
Described little oil pipe 6 and oil pipe 16 are connected with hydraulic jack 17 by connecting base 2.
Working mechanism of the present utility model is: when main valve plug 10 is positioned at the left side, P1, A1 groove communicate, hydraulic oil enters in the main valve body 11 by the filler opening 22 of valve connecting plate 15, advance in the Seal cage on piston 20 right sides through oil pipe 16, connecting base 2, oil hydraulic cylinder end cap 1 again, hydraulic oil promotes piston 20 and moves axially, hydraulic oil in the piston 20 left side Seal cages is clamp-oned in the commutation valve body 11 by oil hydraulic cylinder end cap 1, connecting base 2, oil pipe 16, got back in the fuel tank through oil outlet 14 again.After the round boss 21 of piston 20 enters the circular shrinkage hole 18 of oil hydraulic cylinder end cap 1, oil hydraulic cylinder end cap 1, hydraulic jack 17, piston 20 has just formed a hyperbaric chamber 18, piston 20 continues to be moved to the left, hydraulic fluid pressure in the hyperbaric chamber 18 raises rapidly, when pressure reaches certain value, high pressure oil in the Seal cage 18 is by oil hydraulic cylinder end cap 1, connecting base 2, little oil pipe 6 enters in the reverse valve body 4, this moment is because changeover valve core 10 is positioned at the left side, make the Returnning springs 5 in the reverse valve body 3 in left side compress, oppositely spool 24 is with P3, the A3 groove is connected, hydraulic oil enters in the pilot valve control chamber 26 in left side by runner, promotion guide spool 12 moves right and makes A2, P2, the P1 groove communicates, and the hydraulic oil in the right side pilot valve control chamber 26 is through one-way valve 7, the A3 of reverse valve body 4, B3 groove and enter 0 groove of main valve body 11; After A2, P2, P1 groove are connected, hydraulic oil is in main valve body 11 enters guide's valve body 13, and enter in the main valve control chamber 9 in left side, promoting main valve plug 10 moves right, finish the exchange that is communicated with of P1 and A1, B1 two grooves, so that hydraulic oil turnover direction conversion in the hydraulic jack 17, thereby finish a commutation process.
Claims (3)
1. oil hydraulic pump changement, comprise that one has the main valve body of guide's valve body, both are provided with runner in inside, be provided with main valve plug in the main valve body, be provided with guide's spool in guide's valve body, the two ends of main valve plug and guide's spool are respectively equipped with control chamber, it is characterized in that: be respectively equipped with a reversing valve on two valve end caps of main valve plug, be provided with reverse spool and Returnning spring in the reversing valve, the reversing valve valve pocket is communicated with the control chamber of guide's valve body control chamber and main valve body by runner; Two actuator ports of main valve body are connected to the two ends of a hydraulic jack, be provided with piston in the hydraulic jack, be equipped with concentric round boss on two discs of piston, cylinder ends covers and is provided with the circular shrinkage hole corresponding with round boss, circle ring area beyond the circular shrinkage hole is provided with a side opening, two circular shrinkage hole communicate with actuator port by oil pipe respectively, and side opening communicates with reverse valve body by a little oil pipe.
2. a kind of oil hydraulic pump changement according to claim 1 is characterized in that: described main valve body is fixedly connected with a valve connecting plate, and the valve connecting plate is provided with return opening and filler opening.
3. a kind of oil hydraulic pump changement according to claim 1 is characterized in that: described cylinder ends covers and is provided with connecting base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202932756U CN201779085U (en) | 2010-08-17 | 2010-08-17 | Hydraulic pump reversing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202932756U CN201779085U (en) | 2010-08-17 | 2010-08-17 | Hydraulic pump reversing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201779085U true CN201779085U (en) | 2011-03-30 |
Family
ID=43792297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202932756U Expired - Fee Related CN201779085U (en) | 2010-08-17 | 2010-08-17 | Hydraulic pump reversing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201779085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696507A (en) * | 2020-12-21 | 2021-04-23 | 南京蒙福液压机械有限公司 | Grinding machine valve with adjustable buffer capacity |
-
2010
- 2010-08-17 CN CN2010202932756U patent/CN201779085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696507A (en) * | 2020-12-21 | 2021-04-23 | 南京蒙福液压机械有限公司 | Grinding machine valve with adjustable buffer capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG LUHAI PETROLEUM TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG LUHAI PETROLEUM EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 250000 North Road, middle of Beichen Road, Lingxian County Economic Development Zone, Dezhou, Shandong Patentee after: SHANDONG LUHAI PETROLEUM TECHNOLOGY CO., LTD. Address before: 253500 North Road, middle of Beichen Road, Lingxian County Development Zone, Shandong Patentee before: Shandong Luhai Petroleum Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 Termination date: 20160817 |