CN202468300U - Steering gear pump - Google Patents
Steering gear pump Download PDFInfo
- Publication number
- CN202468300U CN202468300U CN201220042472XU CN201220042472U CN202468300U CN 202468300 U CN202468300 U CN 202468300U CN 201220042472X U CN201220042472X U CN 201220042472XU CN 201220042472 U CN201220042472 U CN 201220042472U CN 202468300 U CN202468300 U CN 202468300U
- Authority
- CN
- China
- Prior art keywords
- pump
- driving gear
- transmission shaft
- oil
- bonnet
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a steering gear pump, and belongs to the technical field of steering gear pumps. By the steering gear pump, residual oil returns to an oil tank but does not return to an oil inlet, so that the service life of an oil pump is prolonged. According to the technical scheme, a rear cover, a pump body, an intermediate body and a front cover are sequentially arranged together, a driving gear and a driven gear are arranged in the pump body and are meshed with each other, a transmission shaft is sleeved in the front cover through a bearing, one end of the transmission shaft is connected with a center shaft of the driving gear, and the other end of the transmission shaft is connected with a transmission gear after penetrating through the front cover; and a slide valve is arranged between an oil inlet and an oil outlet of the rear cover, a throttling valve is arranged in the oil outlet through threads, and an oil return opening is also formed in the rear cover, and is communicated with the oil tank. The steering gear pump can always work at normal temperature, so that the service life of the steering gear pump is prolonged.
Description
Technical field
A kind of steering gear pump of the utility model belongs to steering gear pump technical field.
Background technique
Existing steering gear pump generally has two hydraulic fluid ports, a filler opening, an oil outlet.Oil pump is a constant flow pump.For guaranteeing the constant current effect of oil pump, in the bonnet of oil pump, be designed with return opening, during greater than demand, unnecessary flow will directly be back to filler opening from return opening, to reach the effect of constant current at flow.This design deficiency is: medium-sized or Light-duty Vehicle can satisfy the demands; The big discharge capacity steering pump of heavy goods vehicles demand; The flow of oil pump has only half output (not enough sometimes half the), and unnecessary flow savings are in oil pump, and the heat of generation can not normally distribute; The temperature hot soak condition that causes oil pump influences working life of oil pump.
The model utility content
The utility model overcomes the deficiency of existing technology, and technical problem to be solved provides and a kind ofly makes unnecessary flow backflow fuel tank and the filler opening that do not reflux, thereby prolongs the oil pump steering gear pump in working life.
In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted is: a kind of steering gear pump; Comprise: protecgulum, intermediate, the pump housing, bonnet, driving gear, driven gear, transmission shaft and driving gear; Bonnet, the pump housing, intermediate and protecgulum are installed together successively, and driving gear and driven gear are installed in pump housing inside and driving gear and driven gear engagement, and transmission shaft is contained in the protecgulum through bearing housing; One end of transmission shaft is connected with the central shaft of driving gear, and the other end of transmission shaft links to each other with driving gear after passing protecgulum; Be provided with guiding valve between the filler opening of said bonnet and the oil outlet, through screw thread throttle valve be housed in the oil outlet, also be provided with return opening on the bonnet, described return opening and fuel tank are communicated with;
Described throttle valve is a cylindrical body, and cylindrical center has through hole, and an end of said through hole is interior hexagonal structure, and cylindrical outer installment has outside thread.
Described guiding valve is through in the through hole of thread set on bonnet, and the structure of guiding valve is: be connected through spring between spool and the valve gap; Described filler opening and oil outlet are connected, and realize that through moving of spool connected sum turn-offs between filler opening and the return opening.
The beneficial effect that the utility model compared with prior art has is: the utility model is through having increased return opening; Make unnecessary flow by become the meeting fuel tank back into hydraulic fluid port; Change oil pump into extracorporal circulatory system by body-internal-circulation; Reduce the shell temperature of the utility model, made the utility model be in normal operating temperature state, increased working life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the utility model bonnet place guiding valve.
Among the figure: 1 is protecgulum, and 2 is intermediate, and 3 is the pump housing, and 4 is bonnet, and 5 is driving gear, and 6 is driven gear, and 7 is transmission shaft, and 8 is driving gear, and 9 is oil outlet, and 10 is guiding valve, and 11 is throttle valve, and 12 is return opening, and 13 is spool, and 14 is valve gap.
Embodiment
Like Fig. 1, shown in Figure 2; A kind of steering gear pump of the utility model; Comprise: protecgulum 1, intermediate 2, the pump housing 3, bonnet 4, driving gear 5, driven gear 6, transmission shaft 7 and driving gear 8; Bonnet 4, the pump housing 3, intermediate 2 and protecgulum 1 are installed together successively, and driving gear 5 is installed in the pump housing 3 inside and driving gear 5 and driven gear 6 engagements with driven gear 6, and transmission shaft 7 is contained in the protecgulum 1 through bearing housing; One end of transmission shaft 7 is connected with the central shaft of driving gear 5, and the other end of transmission shaft 7 passes protecgulum 1 back and links to each other with driving gear 8; Be provided with guiding valve 10 between the filler opening of said bonnet 4 and the oil outlet 9, through screw thread throttle valve 11 be housed in the oil outlet 9, also be provided with return opening 12 on the bonnet 4, described return opening 12 is communicated with fuel tank;
Described throttle valve 11 is a cylindrical body, and cylindrical center has through hole, and an end of said through hole is interior hexagonal structure, and cylindrical outer installment has outside thread.
Described guiding valve 10 is through in the through hole of thread set on bonnet 4, and the structure of guiding valve 10 is: be connected through spring between spool 13 and the valve gap 14; Described filler opening and oil outlet 9 are connected, and realize that through moving of spool 13 connected sum turn-offs between filler opening and the return opening 12.
During the utility model work, owing in the oil outlet 9 throttle valve 11 is installed, so after reaching certain rotating speed; From oil outlet 9 hydraulic oil of firm discharge only is provided, the spool 13 that unnecessary hydraulic oil promotes guiding valve 10 moves, and makes filler opening and return opening 12 connections; Unnecessary hydraulic oil flows back to fuel tank from return opening, reaches the purpose of oil outlet 9 constant flows, and has taken away a part of heat; Make the utility model be in normal operating temperature state, increased working life.
Claims (2)
1. steering gear pump; Comprise: protecgulum (1), intermediate (2), the pump housing (3), bonnet (4), driving gear (5), driven gear (6), transmission shaft (7) and driving gear (8); Bonnet (4), the pump housing (3), intermediate (2) and protecgulum (1) are installed together successively; Driving gear (5) and driven gear (6) are installed in the pump housing (3) inside and driving gear (5) and driven gear (6) engagement; Transmission shaft (7) is contained in the protecgulum (1) through bearing housing; One end of transmission shaft (7) is connected with the central shaft of driving gear (5), and the other end of transmission shaft (7) passes protecgulum (1) back and links to each other with driving gear (8); It is characterized in that: be provided with guiding valve (10) between the filler opening of said bonnet (4) and the oil outlet (9); Through screw thread throttle valve (11) is housed in the oil outlet (9); Also be provided with return opening (12) on the bonnet (4), described return opening (12) and fuel tank are communicated with;
Described throttle valve (11) is a cylindrical body, and cylindrical center has through hole, and an end of said through hole is interior hexagonal structure, and cylindrical outer installment has outside thread.
2. a kind of steering gear pump according to claim 1 is characterized in that: described guiding valve (10) is through in the through hole of thread set on bonnet (4), and the structure of guiding valve (10) is: be connected through spring between spool (13) and the valve gap (14); Described filler opening and oil outlet (9) are connected, and realize that through moving of spool (13) connected sum turn-offs between filler opening and the return opening (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220042472XU CN202468300U (en) | 2012-02-10 | 2012-02-10 | Steering gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220042472XU CN202468300U (en) | 2012-02-10 | 2012-02-10 | Steering gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468300U true CN202468300U (en) | 2012-10-03 |
Family
ID=46916461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220042472XU Withdrawn - After Issue CN202468300U (en) | 2012-02-10 | 2012-02-10 | Steering gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536800A (en) * | 2012-02-10 | 2012-07-04 | 长治液压有限公司 | Steering gear pump |
| CN102966537A (en) * | 2012-11-22 | 2013-03-13 | 无锡市东方液压件制造有限公司 | Helical gear oil pump suitable for automobile steering systems |
-
2012
- 2012-02-10 CN CN201220042472XU patent/CN202468300U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536800A (en) * | 2012-02-10 | 2012-07-04 | 长治液压有限公司 | Steering gear pump |
| CN102536800B (en) * | 2012-02-10 | 2015-06-17 | 长治液压有限公司 | Steering gear pump |
| CN102966537A (en) * | 2012-11-22 | 2013-03-13 | 无锡市东方液压件制造有限公司 | Helical gear oil pump suitable for automobile steering systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20150617 |
|
| RGAV | Abandon patent right to avoid regrant |