CN203294178U - Automobile steering pump with flow control device - Google Patents
Automobile steering pump with flow control device Download PDFInfo
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- CN203294178U CN203294178U CN2013203527402U CN201320352740U CN203294178U CN 203294178 U CN203294178 U CN 203294178U CN 2013203527402 U CN2013203527402 U CN 2013203527402U CN 201320352740 U CN201320352740 U CN 201320352740U CN 203294178 U CN203294178 U CN 203294178U
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- flow
- flow control
- control device
- rod
- steering pump
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 7
- 239000003921 oil Substances 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to an automobile steering pump with a flow control device, which comprises a shell, wherein the shell is internally provided with the flow control device, and the flow control device consists of a flow adjusting rod, a flow control spring, a control valve and a connecting bolt; the flow regulating rod is arranged in the connecting bolt, and the flow control spring is arranged between the control valve and the flow regulating rod. The utility model can provide stable flow for the steering system during low-speed and high-speed steering, and output different steering power, so that the driver can obtain enough steering road feel; and the structure is novel, the manufacturing process is simple, and the processing cost is reduced.
Description
Technical field
The utility model relates to steering pump of automobile and makes field, particularly relates to a kind of steering pump of automobile with volume control device.
Background technology
Steering pump, as the chief component in automobile steering system, is equipped with blowdown valve and outlet bolt in the pump housing.Turn to the delivery side of pump bolt to mainly contain two large functions: the one, fastening and sealing, and as the interface of external high pressure fuel pipe; The 2nd, the flow of steering swivel system is regulated.Stable steering swivel system can allow chaufeur drive a car easily and lower the sense of fatigue of chaufeur.
At present manned vehicle is for the consideration of considering fuel economy, and the lightweight of car load is carried out in the use that meets in a large number material, and when running at high speed, in the situation that equal power-assisted output, chaufeur has and turns to unstable sensation, as easy as rolling off a logly causes erroneous judgement and accident.Therefore, need to a kind ofly provide the power-assisted that matches when the different speed of a motor vehicle of manned vehicle, meet the requirement of chaufeur to steering feel.
The utility model content
The technical problems to be solved in the utility model is: a kind of flow output unit of steering pump is provided, the power-assisted that matches is provided according to the speed of a motor vehicle, meet the requirement of chaufeur to steering feel.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of steering pump of automobile with volume control device, comprise housing, be provided with volume control device in described housing, described volume control device are comprised of flow control rod, flow control spring, control cock and attachment bolt; Described flow control rod is arranged in tie bolt, and the flow control spring fitting is between control cock and flow control rod.
Specifically, flow control rod described in the utility model is comprised of cylindrical head and guide rod two parts, its head is a cylindrical boss, have an interior counterbore on boss, and have out first flow to regulate oilhole and the second flow regulating oilhole in counterbore, the second flow regulating oilhole diameter is regulated oilhole greater than first flow; Have the secondary hole of two flow regulatings on guide rod, with the flow regulating main oil-hole, communicate.
Further say, flow control rod described in the utility model is arranged in attachment bolt by interference fit; The flow control spring fitting is between control cock and flow control rod boss; Described control cock can be moved on flow control rod after the elastic force that overcomes the flow control spring; Have four uniform rushing down in the groove of attachment bolt and press hole.
Principle of the present utility model is: when the low engine speed stage, namely this moment, the speed of a motor vehicle was in low speed, motor turning especially during pivot stud needed power-assisted value larger, the steering pump of this moment is maximum to the flow value that steering swivel system provides; When the high engine speeds stage was the automobile high-speed running, if the output this moment power-assisted value same with low-speed stage, when chaufeur turns to, the power of feedback was less, sensation " unstable "; Therefore, should reduce the power-assisted value this moment by the delivery rate that reduces steering pump, makes chaufeur obtain enough road feel feedbacks.
The beneficial effects of the utility model are, have solved the defect that exists in the background technology, and the utility model can be supplied with steering swivel system regime flow is provided when low speed and high speed steering, export different power steerings, make chaufeur obtain enough steerinies feel; And its novel structure, manufacturing process is simple, has reduced tooling cost.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the structural representation of volume control device;
Fig. 3 be driving engine under various rotating speeds with the graph of a relation of delivery rate;
In figure: 1, flow control spring; 2, safety valve; 3, housing; 4, volume control device; 5, fuel return hole; 41, flow control rod; 42, flow control spring; 43, control cock; 44, attachment bolt; 411, first flow is regulated oilhole; 412, the second flow regulating oilhole; 413, the secondary hole of flow regulating; 441; The pressure release connecting bore.
The specific embodiment
With preferred embodiment, the utility model is described in further detail by reference to the accompanying drawings now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of steering pump of automobile with volume control device as shown in Figure 1, comprise housing 3, is provided with volume control device 4 in described housing.
Volume control device shown in Figure 2 are comprised of flow control rod 41, flow control spring 42, control cock 43 and attachment bolt 44; Described flow control rod 41 is arranged in attachment bolt 44, and flow control spring 42 is arranged between control cock and flow control rod.
Flow control rod is arranged in attachment bolt by interference fit; The flow control spring fitting is between control cock and flow control rod boss; Described control cock can be moved on flow control rod after the elastic force that overcomes the flow control spring; Have four uniform rushing down in the groove of attachment bolt and press hole.
In Fig. 3,
1 be the low engine speed stage (1000～2000rpm),
This moment, steering pump rotated under the drive of driving engine, hydraulic oil can enter in the second flow regulating oilhole 412 through first flow adjusting oilhole 411 and the secondary hole 413 of flow regulating, then the endoporus by tie bolt 44 enters into high pressure fuel pipe, this moment, the throughput ratio of hydraulic oil was larger, more oil mass can be provided at short notice, therefore provide assist rate rapider, lighter while turning to; Because revolution ratio is lower, the thrust that this moment, the pressure reduction of control cock 43 Shang Xia was not enough to overcome the elastic force of flow control spring 42 or generation is failed to promote control cock 43 and is moved to the position in flow regulating pair hole 413;
2 be the driving engine high speed stage (2000～3000rpm),
Along with engine speed improves, steering pump also increases, pressure in whole pump is along with steering pump raises at this moment, thereby promotion safety valve 2 overcomes the elastic force of Flow Control spring 1 to move to the left side, when safety valve 2 moves to the position of fuel return hole 5, part high-voltage oil liquid enters the area of low pressure of steering pump along fuel return hole 5, this moment, the pump internal pressure descended, safety valve 2 is got back to initial position to the right under the effect of Flow Control spring 1, afterwards along with oil pressure raises, safety valve 2 is again to left movement, sets back again after rushing down pressure, repeats such action; Rotating speed rising due to steering pump, the elastic force that this moment, the pressure reduction of control cock 43 Shang Xia was enough to overcome flow control spring 42 promotes control cock 43 and moves to the position in flow regulating pair hole 413, and close gradually the position in the secondary hole 413 of flow regulating, 2 stages as shown in Figure 4, the hydraulic pressure oil mass that this moment, steering pump provided is few than 1 stage, the power steering speed of response is relatively slow, and while turning to, feel is heavy a little.
3 is high engine speeds solution stage (〉 3000rpm),
Along with engine speed improves more than 3000 rev/mins, steering pump also increases, and this moment, car was in high-speed motion, and safety valve 2 is the same with the 2nd stage shown in Figure 4, repeats to open and close the action of fuel return hole 5 in steering pump; Rotating speed rising due to steering pump, the pressure reduction of control cock this moment Shang Xia 43 is enough to overcome the elastic force of flow control spring 42 and promotes control cock 43 to left movement and close the secondary hole 413 of flow regulating, 3 stages as shown in Figure 4, this moment, steering pump only regulated by first flow the hydraulic pressure oil mass that oilhole 411 provides, the oil mass range of decrease is very large, the power steering speed of response is slow, and while turning to, feel is heavy, thus the purpose of chaufeur acquisition steering feel while reaching high speed.
What describe in above specification sheets is the specific embodiment of the present utility model, various casehistorys are not construed as limiting flesh and blood of the present utility model, the person of an ordinary skill in the technical field after having read specification sheets can to before the described specific embodiment make an amendment or be out of shape, and do not deviate from essence and the scope of utility model.
Claims (3)
1. steering pump of automobile with volume control device, it is characterized in that: comprise housing, be provided with volume control device in described housing, described volume control device are comprised of flow control rod, flow control spring, control cock and attachment bolt; Described flow control rod is arranged in tie bolt, and the flow control spring fitting is between control cock and flow control rod.
2. a kind of steering pump of automobile with volume control device as claimed in claim 1, it is characterized in that: described flow control rod is comprised of cylindrical head and guide rod two parts, its head is a cylindrical boss, have an interior counterbore on boss, and have out first flow to regulate oilhole and the second flow regulating oilhole in counterbore, the second flow regulating oilhole diameter is regulated oilhole greater than first flow; Have the secondary hole of two flow regulatings on guide rod, with the flow regulating main oil-hole, communicate.
3. a kind of steering pump of automobile with volume control device as claimed in claim 1, it is characterized in that: described flow control rod is arranged in attachment bolt by interference fit; The flow control spring fitting is between control cock and flow control rod boss; Described control cock can be moved on flow control rod after the elastic force that overcomes the flow control spring; Have four uniform rushing down in the groove of attachment bolt and press hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203527402U CN203294178U (en) | 2013-06-19 | 2013-06-19 | Automobile steering pump with flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203527402U CN203294178U (en) | 2013-06-19 | 2013-06-19 | Automobile steering pump with flow control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203294178U true CN203294178U (en) | 2013-11-20 |
Family
ID=49570211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203527402U Expired - Fee Related CN203294178U (en) | 2013-06-19 | 2013-06-19 | Automobile steering pump with flow control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203294178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832470A (en) * | 2014-01-24 | 2014-06-04 | 大连液压件有限公司 | Method for controlling flow rate of oil inlet pipe of steering pump of automobile |
-
2013
- 2013-06-19 CN CN2013203527402U patent/CN203294178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832470A (en) * | 2014-01-24 | 2014-06-04 | 大连液压件有限公司 | Method for controlling flow rate of oil inlet pipe of steering pump of automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |