CN2525272Y - Radial plunger pump and rickshaw using said pump - Google Patents
Radial plunger pump and rickshaw using said pump Download PDFInfo
- Publication number
- CN2525272Y CN2525272Y CN01260086U CN01260086U CN2525272Y CN 2525272 Y CN2525272 Y CN 2525272Y CN 01260086 U CN01260086 U CN 01260086U CN 01260086 U CN01260086 U CN 01260086U CN 2525272 Y CN2525272 Y CN 2525272Y
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- China
- Prior art keywords
- plunger
- pump
- active chamber
- oil
- ring
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- 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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Abstract
The utility model relates to a radial plunger pump and rickshaw using the pump. The pump comprises a pump body, a pump shaft arranged on the center of the pump body, a cam arranged on the pump shaft, a plurality of plungers which are matched with the cam and distributed radially around the pump shaft, working chambers which are respectively arranged on the upper end of each plunger, an oil supply ring and an oil discharge ring which are respectively communicated with the working chambers, as well as check valves arranged between the working chambers and the oil supply ring as well as the oil discharge ring, wherein, the radial outer side of each plunger is provided with a sealing plug; the opposite sides of the sealing plugs and the plungers are respectively provided with grooves forming the working chambers; a spring is arranged inside every two grooves. As the structure design that the opposite sides of the sealing plugs and the plungers are respectively provided with the grooves forming the working chambers is adopted, the radial size of the plunger pump can be greatly decreased.
Description
Technical field
The utility model relates to a kind of radial plunger pump and uses the rickshaw of this pump.
Background technique
Radial plunger pump is widely used in various hydraulic transmissions field, but because traditional radial and axial size of radial plunger pump is bigger, its application is restricted.
Because the volume of conventional hydraulic pumps is big, efficient is low, makes to adopt the development of hydraulically powered manpower bicycle to be restricted.
Summary of the invention
It is little that the purpose of this utility model provides a kind of size, and the efficient height is easy to process, the radial plunger pump of long service life.
Another purpose of the present utility model provides the high Hydraulic manpower vehicle of a kind of transmission efficiency.
Be used to realize a kind of radial plunger pump of the utility model purpose, comprise a pump housing; A pump shaft that is arranged on pump housing center; A cam that is installed on the pump shaft; A plurality of cooperate with cam around the radially-arranged plunger of pump shaft, the active chamber that is provided with in each plunger upper end; A supply ring that is communicated with active chamber; An oil extraction ring that is communicated with active chamber; An one-way valve of between active chamber and supply ring, installing; An one-way valve of between active chamber and oil extraction ring, installing; Wherein, a shutoff is installed, respectively has the groove that forms active chamber, a spring is set in two grooves at the opposite side of shutoff and plunger at the radial outside of each plunger.Owing to adopt the structural design that respectively has the groove that forms active chamber at the opposite side of shutoff and plunger, therefore the radial dimension of plunger pump is significantly reduced.
The technological scheme that realizes another purpose of the utility model is: a kind of rickshaw, has a vehicle frame, a vehicle seat, a braking system and a steering gear, a pedal drive mechanism is installed on vehicle frame, this pedal drive mechanism drives an oil hydraulic pump, the pressure oil that is produced by this oil hydraulic pump drives an oil hydraulic motor, this oil hydraulic motor produces the power that drives rickshaw, oil hydraulic pump uses radial plunger pump described in the utility model, this oil hydraulic pump is arranged on the standpipe and the inclined tube jointing place of rickshaw, and oil hydraulic pump is connected with an oil hydraulic motor by oil pipe.
Further solution of the present utility model comprises:
At the sheathed trim ring that is used for plunger of pump housing excircle, an end cap is installed respectively in pump housing both sides, the diameter of each end cap is greater than the diameter of the pump housing, and less than the external diameter of trim ring, this structure is the improvement to existing spiral shutoff, makes processing more convenient;
Supply ring and oil extraction ring are arranged on the both sides of the pump housing, radial dimension is further reduced;
Fix a plunger case between the plunger and the pump housing, can make the pump housing is different materials with plunger cylinder, and the life-span that helps plunger case increases.
Description of drawings
Fig. 1 the utlity model has the front view of broken section.
Fig. 2 is along A-A hatching line sectional view among Fig. 1.
Fig. 3 is an oil hydraulic circuit schematic diagram of the present utility model.
The schematic representation of Fig. 4 two-wheeled cycle.
Fig. 5 is the schematic representation of tricycle.
Embodiment
Referring to Fig. 1 and 2, radial plunger pump 53 of the present utility model has a pump housing 9, at the pump housing 9 centers, on bearing support 3, a pump shaft 1 is installed by bearing 4,12, a five-pointed star shape cam 6 is installed on pump shaft 1, certainly, cam 6 can be any suitable shape.Cam 6 is installed on the pump shaft 1 by cam strong 11, and cam back-up ring 25, bearing support back-up ring 26 and end ring 27 are installed in known manner.What cooperate with cam 6 is around pump shaft 1 radially-arranged 12 plungers 7, the end that plunger 7 cooperates with cam 6 is preferably installed ball 30, one active chamber 28 is set in the upper end of each plunger 7, and active chamber 28 is communicated with a supply ring 16, and active chamber 28 also is communicated with an oil extraction ring 18.An one-way valve 5 is installed between active chamber 28 and supply ring 16, an one-way valve 10 is installed between active chamber 28 and oil extraction ring 18.Radial outside at each plunger 7 is installed a shutoff 21, installs for sealing between the shutoff 21 and the pump housing 9.Opposite side at shutoff 21 and plunger 7 respectively has the groove 29 that forms active chamber, and a spring 23 is set in two grooves 29.
At the sheathed trim ring 24 that is used for plunger of the pump housing 9 excircles, an end cap is installed respectively in pump housing both sides, i.e. left end cap 2 and right end cap 13, the diameter of each end cap is greater than the diameter of the pump housing 9, less than the external diameter of trim ring.Supply ring 16 and oil extraction ring 18 are arranged on the both sides of the pump housing.Fix a plunger case 8 between the plunger 7 and the pump housing 9, shutoff 21 is pressed against on the plunger case 8, has an oil supply 31 that is communicated with supply ring 16 and active chamber 28 on plunger case 8 at least, and an oil-discharge trough 17 that is communicated with oil extraction ring 18 and active chamber.The oil supply and discharge groove preferably is provided with four, so that oil supply and discharge is more smooth.
Working procedure of the present utility model is described below, and is example with an active chamber only at this.Referring to Fig. 3, pump shaft 1 is under external force drives, as a pair of crank is installed on pump shaft 1, drive rotation by manpower, driving cam 6 rotates, and then drive plunger 7 to-and-fro motion, when plunger 7 under the effect of spring 23, when radially moving inward, in active chamber 29, produce negative pressure hydraulic oil and enter into active chamber 29, under the promotion of plunger 7, when radially outward moves at cam by oil-feed port 14, supply ring 16 and one-way valve 5, produce malleation in active chamber 29, hydraulic oil is extruded from active chamber 29 by one-way valve 10, oil extraction ring 18 and oil drain out 15.
Fig. 4 represents a kind of manpower two-wheeled cycle, this car has a vehicle frame, vehicle seat, braking system and a steering gear (not providing label among the figure), a pedal drive mechanism 57 is installed on vehicle frame, this pedal drive mechanism drives radial plunger pump 53 of the present utility model, the pressure oil that is produced by this oil hydraulic pump 53 is sent to an oil hydraulic motor 55 through oil pipe 54, this oil hydraulic motor produces the power that drives bicycle, the oil that motor 55 is discharged enters fuel tank 51 through pipeline 56, enters pump 53 through oil pipe 52 again.Obviously, motor 55 of the present utility model can drive the trailing wheel of bicycle, also can drive front-wheel.
Fig. 5 represents tricycle of the present utility model, and its driving principle is identical with the principle of two-wheeled cycle shown in Figure 4, and the parts label of drive part changes 61-67 into by 51-57, and concrete structure repeats no more.
Though the utility model is the application that example has illustrated radial plunger pump 53 with the rickshaw, should be appreciated that radial plunger pump 53 of the present utility model can also be used for other fluid power driving field.To those skilled in the art, in the design scope that the utility model discloses, can make multiple variation.
Claims (8)
1, a kind of radial plunger pump comprises: a pump housing; A pump shaft that is arranged on pump housing center; A cam that is installed on the pump shaft; A plurality of cooperate with cam around the radially-arranged plunger of pump shaft, the active chamber that is provided with in each plunger upper end; A supply ring that is communicated with active chamber; An oil extraction ring that is communicated with active chamber; An one-way valve of between active chamber and supply ring, installing; An one-way valve of between active chamber and oil extraction ring, installing; It is characterized in that:
At the radial outside of said each plunger a shutoff is installed, respectively has the groove that forms active chamber, a spring is set in two grooves at the opposite side of said shutoff and plunger.
2, plunger pump according to claim 1 is characterized in that, at the sheathed trim ring that is used for plunger of pump housing excircle, in the pump housing both sides end cap is installed respectively, and the diameter of each end cap is greater than the diameter of the pump housing, less than the external diameter of trim ring.
3, plunger pump according to claim 2 is characterized in that, said supply ring and oil extraction ring are arranged on the both sides of the pump housing.
4, according to any described plunger pump among the claim 1-3, it is characterized in that, between the said plunger and the pump housing, fix a plunger case, said shutoff is pressed against on the plunger case, and having a confession that is communicated with supply ring and active chamber on plunger case at least has groove and an oil-discharge trough that is communicated with oil extraction ring and active chamber.
5, plunger pump according to claim 4 is characterized in that, said plunger has 12, and said cam is the five-pointed star cam.
6, a kind of rickshaw, have a vehicle frame, a vehicle seat, a braking system and a steering gear, a pedal drive mechanism is installed on vehicle frame, this pedal drive mechanism drives an oil hydraulic pump, the pressure oil that is produced by this oil hydraulic pump drives an oil hydraulic motor, this oil hydraulic motor produces the power that drives rickshaw, it is characterized in that said oil hydraulic pump comprises: a pump housing; A pump shaft that is arranged on pump housing center; A cam that is installed on the pump shaft; A plurality of cooperate with cam around the radially-arranged plunger of pump shaft, the active chamber that is provided with in each plunger upper end; A supply ring that is communicated with active chamber; An oil extraction ring that is communicated with active chamber; An one-way valve of between active chamber and supply ring, installing; An one-way valve of between active chamber and oil extraction ring, installing; Radial outside at said each plunger is installed a shutoff, opposite side at said shutoff and plunger respectively has the groove that forms active chamber, a spring is set in two grooves, said oil hydraulic pump is arranged on the standpipe and the inclined tube jointing place of rickshaw, and said oil hydraulic pump is connected with an oil hydraulic motor by oil pipe.
7, rickshaw according to claim 6 is characterized in that, said rickshaw is a two-wheeled cycle.
8, rickshaw according to claim 6 is characterized in that, said rickshaw is a tricycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01260086U CN2525272Y (en) | 2001-09-25 | 2001-09-25 | Radial plunger pump and rickshaw using said pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01260086U CN2525272Y (en) | 2001-09-25 | 2001-09-25 | Radial plunger pump and rickshaw using said pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525272Y true CN2525272Y (en) | 2002-12-11 |
Family
ID=33668331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01260086U Expired - Fee Related CN2525272Y (en) | 2001-09-25 | 2001-09-25 | Radial plunger pump and rickshaw using said pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525272Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588239A (en) * | 2012-02-29 | 2012-07-18 | 太仓市金鹿电镀有限公司 | Hydraulic pump |
| CN102853238A (en) * | 2012-03-21 | 2013-01-02 | 马鞍山友邦重工机械有限公司 | Plunger pump used for planomiller mill head box |
-
2001
- 2001-09-25 CN CN01260086U patent/CN2525272Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588239A (en) * | 2012-02-29 | 2012-07-18 | 太仓市金鹿电镀有限公司 | Hydraulic pump |
| CN102853238A (en) * | 2012-03-21 | 2013-01-02 | 马鞍山友邦重工机械有限公司 | Plunger pump used for planomiller mill head box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Yu Bo Document name: Correction notice |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |