CN2711435Y - Electric hydraulic pump for tipping cab of car - Google Patents
Electric hydraulic pump for tipping cab of car Download PDFInfo
- Publication number
- CN2711435Y CN2711435Y CN 200420047771 CN200420047771U CN2711435Y CN 2711435 Y CN2711435 Y CN 2711435Y CN 200420047771 CN200420047771 CN 200420047771 CN 200420047771 U CN200420047771 U CN 200420047771U CN 2711435 Y CN2711435 Y CN 2711435Y
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- China
- Prior art keywords
- plunger
- circular groove
- utility
- model
- pump housing
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- Expired - Fee Related
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Abstract
The utility model relates to an electric hydraulic pump for the tipping cab of a car. The utility model is characterized in that a plurality of plunger bores are arranged on a pump body (7), and a plurality of plungers which correspond to the plunger bores are arranged in the plunger bores. The plungers can displace in the plunger bores. The circle surface of the pump body (7) is provided with a circular groove at the point of the plunger bores. A sealing cushion (5) is arranged in the circular groove at the point of the plunger bores. An O-shaped ring (6) and a sealing ring hoop (4) are arranged orderly in the circular groove. Compared with the prior art, the utility model has reasonable design and simple structure. Five plunger bores are arranged on the pump body and five plungers which are matched with the plunger bores are also provided. Each plunger can work independently via the turning of an eccentric wheel, so the oil liquid is discharged continuously. The utility model has the advantages of easy assembly and operation and labor saving. Only a copper sealing cushion is arranged at the plunger bore end of the circular groove. An O-shaped ring is sheathed and then a rubber sealing ring hoop is sheathed. No special tools are needed to complete the assembly. The sealing effect is excellent.
Description
Technical field: what the utility model was related is a kind of improvement invention of oil hydraulic pump, what be specifically related to is a kind of invention of electric hydraulic pump of the automobile cab that is used to overturn, particularly be a kind of 5-linked plunger type electric hydraulic pump of the automobile cab that is used to overturn
Background technique: being used to of prior art the overturn electric hydraulic pump of automobile cab be the oil hydraulic pump of single-plunger type structure, and by the sealing of spring extruding steel ball type.The oil hydraulic pump of this kind structure is when work, because when having only the maximum eccentric place of eccentric shaft to turn to the plunger end face, just plunger is upwards pushed up by the bearing that is arranged on the eccentric shaft, reach the purpose of imbibition and discharge opeing, and repetition imbibition and discharge opeing to wait until that capacity eccentric bearing rotates a week and just can realize.Therefore neutral occurs, the discharge of fluid is intermittent, occurs not steadily when operator cabin is risen, and the noise that causes in the hydraulic pressure process is excessive, and the impact of hydraulic pressure simultaneously is also big, and long-term the use can influence motor performance.
Summary of the invention: in view of the problem that known technology exists, the purpose of this utility model aim to provide a kind of simple in structure, reasonable in design, oil extraction reach continuously improve the fluid discharge capacity be used to overturn the electric hydraulic pump of automobile cab.To achieve these goals, the utility model is finished by following mode: this kind be used to overturn electric hydraulic pump of automobile cab, comprise pump seat, motor and eccentric shaft, in described pump seat, be provided with the pump housing, described eccentric shaft passes in the pump housing center hole, described eccentric shaft is provided with bearing, be provided with plunger in the described pump housing, the end face of described plunger contacts with the outer peripheral surface of bearing, it is characterized in that the described pump housing is provided with a plurality of plunger holes, and in each plunger hole, be provided with and the corresponding plunger of plunger hole, described plunger can be at the plunger hole intrinsic displacement, the circumferential surface of the described pump housing is provided with circular groove at the plunger hole place, and the plunger hole place in described circular groove is provided with sealing gasket, is provided with O shape circle and sealing hoop in described circular groove successively.Plunger hole on the described pump housing is five, and the five equilibrium setting.The utility model compared with prior art, and is reasonable in design, simple in structure, because the utility model is provided with five plunger holes on the pump housing, and corresponding matching has five plungers, and each plunger all can work alone by eccentric rotation, makes the discharge of fluid be the continuity discharge.And simple to operation aspect assembling, laborsaving, only need copper sealing gasket is placed on the plunger nose end of circular groove, put an O shape circle, put again a rubber seal hoop just can, needn't assemble with special tool again.And sealing effect and good.
Description of drawings: the utility model has following accompanying drawing;
Fig. 1 is the utility model oil hydraulic pump internal structure sectional view;
Fig. 2 is the utility model Pump Body Parts figure.
Embodiment: accompanying drawing has been represented structure of the present utility model and embodiment, further describes the related content and the working principle of embodiment below more in conjunction with the accompanying drawings.The utility model comprises pump seat 8, motor and eccentric shaft, in described pump seat 8, be provided with the pump housing 7, described eccentric shaft 1 passes in the pump housing 7 center holes, described eccentric shaft 1 is provided with bearing 2, be provided with five plungers 9 in the described pump housing 7, the end face of described each plunger 9 contacts with the outer peripheral surface of bearing 2, the described pump housing 7 is provided with five plunger holes, plunger 9 is arranged in the plunger hole, described plunger 9 can be at the plunger hole intrinsic displacement, the circumferential surface of the described pump housing 7 is provided with circular groove at the plunger hole place, and the plunger hole place in described circular groove is provided with copper sealing gasket 5, is provided with O shape circle 6 and sealing hoop 4 in described circular groove successively.During the utility model work, behind the motor-drive pump electrical power, motor rotation axis can drive eccentric shaft 1 rotation, the bearing 2 that is fixed on simultaneously on the eccentric shaft 1 also can be followed rotation together, because eccentric principle, bearing 2 can back and forth promote five plungers 9 in plunger hole in rotary course successively, realizes imbibition, discharge opeing.Plunger 9 resets by the ring 3 that resets during this.The process of the utility model imbibition is the to-and-fro motion of motor-drive pump plunger assembly, makes plunger hole produce vacuum, and fluid is because the effect of pressure is full of the plunger vestibule at this moment, and when plunger extruded, fluid was discharged.The fluid of discharging backs down copper seal washer 5, fluid is come in the circular groove of the pump housing, and copper seal washer 5 can seal up plunger hole by copper seal washer 5 during plunger 9 withdrawals under the effect of O shape circle 6, and fluid can not be refluxed.And the fluid that sealing hoop 4 can seal up in the circular groove prevents to leak.At this moment, the oil duct of fluid by leaving on the pump housing enters the oil duct of leaving on the pump seat through oil nozzle and flows to the oil connection oil outlet.The utility model compared with prior art, and is reasonable in design, simple in structure, because the utility model is provided with five plunger holes on the pump housing, and corresponding matching has five plungers, and each plunger all can work alone by eccentric rotation, makes the discharge of fluid be the continuity discharge.And simple to operation aspect assembling, laborsaving, only need copper sealing gasket is placed on the plunger nose end of circular groove, put an O shape circle, put again a rubber seal hoop just can, needn't assemble with special tool again.And sealing effect and good.
Claims (2)
1, a kind of electric hydraulic pump of the automobile cab that is used to overturn, comprise pump seat (8), motor and eccentric shaft (1), in described pump seat (8), be provided with the pump housing (7), described eccentric shaft (1) passes in the pump housing (7) center hole, described eccentric shaft (1) is provided with bearing (2), be provided with plunger (9) in the described pump housing (7), the end face of described plunger (9) contacts with the outer peripheral surface of bearing (2), it is characterized in that the described pump housing (7) is provided with a plurality of plunger holes, and in each plunger hole, be provided with and the corresponding plunger of plunger hole (9), described plunger can be at the plunger hole intrinsic displacement, the circumferential surface of the described pump housing (7) is provided with circular groove at the plunger hole place, plunger hole place in described circular groove is provided with sealing gasket (5), is provided with O shape circle (6) and sealing hoop (4) in described circular groove successively.
2, the electric hydraulic pump of a kind of automobile cab that is used to overturn as claimed in claim 1 is characterized in that the plunger hole on the described pump housing (7) is five, and the five equilibrium setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047771 CN2711435Y (en) | 2004-05-18 | 2004-05-18 | Electric hydraulic pump for tipping cab of car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047771 CN2711435Y (en) | 2004-05-18 | 2004-05-18 | Electric hydraulic pump for tipping cab of car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711435Y true CN2711435Y (en) | 2005-07-20 |
Family
ID=36192538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047771 Expired - Fee Related CN2711435Y (en) | 2004-05-18 | 2004-05-18 | Electric hydraulic pump for tipping cab of car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711435Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196022A (en) * | 2013-04-22 | 2013-07-10 | 新泰市佳兴液压机械有限公司 | Electric ultrahigh-pressure grease injector |
-
2004
- 2004-05-18 CN CN 200420047771 patent/CN2711435Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196022A (en) * | 2013-04-22 | 2013-07-10 | 新泰市佳兴液压机械有限公司 | Electric ultrahigh-pressure grease injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanghai Zhongou Auto Electric Equipment Co., Ltd. Assignor: Zhong-Ou Auto Electric Co., Ltd. Contract fulfillment period: 2006.9.20 to 2014.9.19 Contract record no.: 2008310000126 Denomination of utility model: Electric hydraulic pump for tipping cab of car Granted publication date: 20050720 License type: Exclusive license Record date: 20081007 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.9.20 TO 2014.9.19; CHANGE OF CONTRACT Name of requester: SHANGHAI ZHONGOU AUTO ELECTRIC CO., LTD. Effective date: 20081007 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050720 |