CN2413056Y - Wobble pump for hand heavy material hydraulic moving device - Google Patents
Wobble pump for hand heavy material hydraulic moving device Download PDFInfo
- Publication number
- CN2413056Y CN2413056Y CN 00231851 CN00231851U CN2413056Y CN 2413056 Y CN2413056 Y CN 2413056Y CN 00231851 CN00231851 CN 00231851 CN 00231851 U CN00231851 U CN 00231851U CN 2413056 Y CN2413056 Y CN 2413056Y
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- Prior art keywords
- oil
- pump housing
- communicated
- valve
- plunger
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of hydraulic machinery, which relates to the improvement on a wobble pump for a hand heavy material hydraulic moving device. The utility model comprises a pump body 1, wherein two plunger pistons 2 connected with a cradle 3 is arranged on the valve body. The utility model is characterized in that a low-voltage oil path 8 connected with an oil tank is arranged in the pump body, and an oil suction valve which is communicated with the low-voltage oil path 8 is arranged at the bottom of each plunger piston. Each plunger piston cavity is communicated with an inner chamber 16 of a hydraulic cylinder through a high voltage oil path 15 and a reservoir sweep valve 9 arranged in a casing. A manual relief valve 13 and a safety valve 12 are arranged in the pump body 1. The utility model has the advantages of reduction of volume of the wobble pump, compact structure, light weight, low cost, reliable work and long lifetime.
Description
The utility model belongs to the hydraulic machinery field, relates to the improvement of the manual pump that is used for manual weight fluid power shifter.
A kind of manual weight fluid power shifter of being produced by French a company adopts the manual pump with two plungers, shakes the reciprocal depresses plunger of handle and can make the supercharging of medium oil.Adopt outer pipeline to be connected between this manual pump and the oil hydraulic cylinder, stablize the safety valve of manual pump pressure, and the unloading valve used of off-load all passes through outer pipeline and is connected with the related port of the pump housing.Owing to have a large amount of external pipelines, cause complex structure, and be easy to generate oil leakage fault, the volume of whole shifter is increased, it is also convenient inadequately to use.
The purpose of this utility model is: the manual pump of pipeline in a kind of whole employing is provided, cancels external pipeline, make the manual pump volume little, compact structure significantly reduces oil leakage fault simultaneously, increases reliability; Manual pump directly is connected with oil hydraulic cylinder, makes whole fluid power shifter compact structure, and volume is little.
The technical solution of the utility model is, a kind of manual pump that is used for manual weight fluid power shifter, comprise a pump housing 1, two plunger cavities that hold plunger 2 are arranged on the pump housing, one end of each plunger is connected with reel cage 3 by plunger axis 5, and reel cage 3 links to each other with the support on the pump housing 1 top by reel cage axle 6, and handle 4 is connected with reel cage 3, it is characterized in that
(1) a low pressure oil circuit 8 is arranged in the pump housing, this low pressure oil circuit is communicated with fuel tank by external low pressure fuel pipe 11, and the bottom of each plunger cavity is communicated with the oil outlet 7 of an oil suction valve, and the filler opening of oil suction valve 7 is communicated with low pressure oil circuit 8,
(2) side that is connected with oil hydraulic cylinder 10 at the pump housing has the cylinder-shaped joint 14 of a projection, the inner headed face of oil hydraulic cylinder 10 1 ends and the periphery close-fitting of cylinder-shaped joint 14 merge sealing, each plunger cavity is communicated with the filler opening of the oil extraction valve 9 that is positioned at cylinder-shaped joint 14 surfaces by the high-pressure oil passage 15 of enclosure interior, the oil outlet of oil extraction valve 9 is communicated with oil hydraulic cylinder inner chamber 16
(3) there is an off-load path 17 from oil hydraulic cylinder inner chamber 16 to low pressure oil circuit 8 pump housing 1 inside, and the manual unloading valve 13 that control off-load path 17 opens and closes is installed on the pump housing 1,
(4) a pressure control path from oil hydraulic cylinder inner chamber 16 to low pressure oil circuit 8 is arranged in the inside of the pump housing 1, the safety valve 12 that is connected on pilot pressure in this path is installed on the pump housing 1.
The utility model has the advantages that, original external pipeline is all made built-in pipeline in the pump housing, dwindled the volume of pump greatly, compact structure has alleviated weight, has also reduced cost simultaneously.Built-in pipeline can seal effectively, has significantly reduced leakage, has improved the reliability and the life-span of pump work.Manual pump of the present utility model is installed on the fluid power shifter, the volume of whole device is reduced, cost reduces, and it is more reliable to work.
Description of drawings.
Fig. 1 is the utility model structural representation.
Fig. 2 is an A-A sectional drawing among Fig. 1.
Below in conjunction with accompanying drawing the utility model is elaborated.The utility model is the inside of outer pipeline being accomplished the pump housing 1 to the improvement of existing external pipeline manual pump, eliminates the connecting pipeline of pump housing external complex.Fig. 1, the 2nd, a kind of design example of the utility model manual pump.
Two plunger cavities are arranged on the pump housing 1, and two plungers 2 lay respectively at wherein.The upper end of plunger 2 is connected with the two ends of reel cage 3 by plunger axis 5.There is reel cage axle 6 at the middle part of reel cage 3, reel cage 3 is seated on the support on housing 1 top.This support can be made of one with the pump housing 1, also can process respectively, links into an integrated entity with bolt then.Fixing handle 4 on the reel cage 3.Shake handle, driving reel cage 3 changes pendulum around reel cage axle 6, makes two plunger 2 up-down alternative motions.The path of oil suction is made up of with the external low pressure fuel pipe 11 that is connected low pressure oil circuit and fuel tank the oil suction valve 7 that is positioned at plunger cavity bottom, the low pressure oil circuit 8 that is positioned at the plunger cavity below in plunger cavity.Low pressure oil circuit 8 in the filler opening of oil suction valve 7 and the pump housing 1 is communicated with, and the oil outlet of oil suction valve 7 is communicated with plunger cavity.When plunger 2 moved upward, the medium oil in the fuel tank entered in the plunger cavity through low pressure fuel pipe 11--low pressure oil circuit 8--oil suction valve 7.The outflow path of medium oil is made up of high-pressure oil passage 15--oil extraction valve 9--oil hydraulic cylinder inner chamber 16 in the plunger cavity.One end of high-pressure oil passage 15 communicates with the stage casing of plunger cavity, and the other end of high-pressure oil passage 15 communicates with the filler opening of oil extraction valve 9, and the oil outlet of oil extraction valve 9 is communicated with oil hydraulic cylinder inner chamber 16.When plunger 2 moved downward, oil suction valve 7 was closed, and the medium oil in the plunger cavity enters oil hydraulic cylinder inner chamber 16 through high-pressure oil passage 15--oil extraction valve 9, promoted piston motion.Oil hydraulic cylinder 10 merges sealing with joint 14 close-fittings, firmly couples together by the housing 19 of bolt with the pump housing 1 and fluid power shifter, and oil hydraulic cylinder 10 is securely fixed between the pump housing 1 and the housing 19.
A safety valve 12 and a manual unloading valve 13 are arranged between high-pressure oil passage 15 and low pressure oil circuit 8, and they all are conventional known configurations.Safety valve 12 makes the pressure in the high-pressure oil passage can not exceed predetermined limit.Unloading valve 13 is used for the medium oil release to oil hydraulic cylinder inner chamber 16, and piston is returned.Safety valve 12 and unloading valve 13 all are directly installed on the pump housing 1.Oil suction valve 7 and oil extraction valve 9 are made up of valve port, steel ball, spring and spring seat, and spring withstands on steel ball on the valve port, form the one-way flow valve.
For the ease of the working pressure of measuring media oil, a pressure tap that is communicated with oil hydraulic cylinder inner chamber 16 is arranged on the pump housing 1, shut by a screw plug at ordinary times.When needing pressure measurement, connect pressure gauge, can monitor easily, bring great convenience for debugging, maintenance at this.
Claims (2)
1, a kind of manual pump that is used for manual weight fluid power shifter, comprise a pump housing [1], two plunger cavities that hold plunger [2] are arranged on the pump housing, one end of each plunger is connected with reel cage [3] by plunger axis [5], reel cage [3] links to each other with the support on the pump housing [1] top by reel cage axle [6], handle [4] is connected with reel cage [3], it is characterized in that
(1) a low pressure oil circuit [8] is arranged in the pump housing, this low pressure oil circuit is communicated with fuel tank by external low pressure fuel pipe [11], and the bottom of each plunger cavity is communicated with the oil outlet [7] of an oil suction valve, and the filler opening of oil suction valve [7] is communicated with low pressure oil circuit [8],
(2) side that is connected with oil hydraulic cylinder [10] at the pump housing has the cylinder-shaped joint [14] of a projection, the periphery close-fitting of the inner headed face of oil hydraulic cylinder [10] one ends and cylinder-shaped joint [14] merges sealing, each plunger cavity is communicated with the filler opening of the oil extraction valve [9] that is positioned at cylinder-shaped joint [14] surface by the high-pressure oil passage [15] of enclosure interior, the oil outlet of oil extraction valve [9] is communicated with oil hydraulic cylinder inner chamber [16]
(3) there is an off-load path [17] from oil hydraulic cylinder inner chamber [16] to low pressure oil circuit [8] pump housing [1] inside, and the manual unloading valve [13] that control off-load path [17] opens and closes is installed on the pump housing [1],
(4) a pressure control path from oil hydraulic cylinder inner chamber [16] to low pressure oil circuit [8] is arranged in the inside of the pump housing [1], the safety valve [12] that is connected on pilot pressure in this path is installed on the pump housing [1].
2, manual pump according to claim 1 is characterized in that, has one to be communicated with oil hydraulic cylinder inner chamber [16] on the pump housing [1], the pressure tap [18] of being sealed by screw plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231851 CN2413056Y (en) | 2000-03-21 | 2000-03-21 | Wobble pump for hand heavy material hydraulic moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231851 CN2413056Y (en) | 2000-03-21 | 2000-03-21 | Wobble pump for hand heavy material hydraulic moving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413056Y true CN2413056Y (en) | 2001-01-03 |
Family
ID=33594646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231851 Expired - Fee Related CN2413056Y (en) | 2000-03-21 | 2000-03-21 | Wobble pump for hand heavy material hydraulic moving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413056Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526052A (en) * | 2015-12-09 | 2016-04-27 | 沈阳飞研航空设备有限公司 | High pressure manual pump |
| CN106837730A (en) * | 2017-02-28 | 2017-06-13 | 长治市神马科技有限公司 | Mining hand pump |
-
2000
- 2000-03-21 CN CN 00231851 patent/CN2413056Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526052A (en) * | 2015-12-09 | 2016-04-27 | 沈阳飞研航空设备有限公司 | High pressure manual pump |
| CN106837730A (en) * | 2017-02-28 | 2017-06-13 | 长治市神马科技有限公司 | Mining hand pump |
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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: JIANGXI CHANGHE AVIATION INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: CHANGHE AEROPLANE INDUSTRY (GROUP) CO., LTD. Effective date: 20031024 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20031024 Patentee after: Jiangxi Changhe Aviation Industries Co. Ltd Patentee before: Changhe Aircraft Industry (Group) Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGXI CHANGHE AUTOMOTIVE CO., LTD. Free format text: FORMER OWNER: JIANGXI CHANGHE AVIATION INDUSTRIAL CO., LTD. Effective date: 20050204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050204 Address after: 109 mailbox 333002, Jiangxi City, Jingdezhen Province Patentee after: Jiangxi Changhe Automobile Co., Ltd. Address before: 109 mailbox 333002, Jiangxi City, Jingdezhen Province Patentee before: Jiangxi Changhe Aviation Industries Co. Ltd |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |