CN201390284Y - Semi-integral type hydraulic assistance steering device - Google Patents
Semi-integral type hydraulic assistance steering device Download PDFInfo
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- CN201390284Y CN201390284Y CN200920301791U CN200920301791U CN201390284Y CN 201390284 Y CN201390284 Y CN 201390284Y CN 200920301791 U CN200920301791 U CN 200920301791U CN 200920301791 U CN200920301791 U CN 200920301791U CN 201390284 Y CN201390284 Y CN 201390284Y
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- steering
- control valve
- steering control
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- steering gear
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Abstract
A semi-integral type hydraulic assistance steering device comprises a mechanical steering device. A steering screw rod is arranged inside the mechanical steering device; the front end of the mechanical steering device is connected with a steering control valve; an oil inlet, an oil return hole and a functional oil hole are formed on the steering control valve; a valve core is arranged inside the steering control valve; one end of the steering screw rod is connected with the valve core, and the other end thereof is in transmission connection with a steering nut; the steering nut is engaged and connected with a rocker-arm shaft; an aligning mechanism is arranged between the steering control valve and the mechanical steering device and comprises a connecting body connected with the steering control valve and the mechanical steering device; the steering screw rod penetrates the connecting body and is connected with the valve core; and a disc spring is arranged inside the connecting body and clamped on a flanged side of the steering screw rod. In the utility model, the mechanical steering device is combined with the steering control valve through the aligning mechanism; the structure arrangement is reasonable; and the disc spring is adopted as an aligning element, so that the aligning performance is good, and the steering is more stable. The semi-integral type hydraulic assistance steering device is suitable to use in a vehicle with a steering shaft bearing high loads.
Description
Technical field
The utility model relates to a kind of automobile hydraulic power steering gear, particularly a kind of semi-monolithic formula hydraulic power steering gear.
Background technology
The hydraulic power steering device mainly is made up of manual steering gear, steering control valve and three parts of power cylinder.Wherein, if manual steering gear and power cylinder are designed to one, and fit together with steering control valve, then be called integral hydraulic power steering gear, integral hydraulic power steering gear is used on the vehicle that single propons turns to more, and when vehicle uses two propons to turn to, can use the steering swivel system of the additional power cylinder of integral hydraulic power steering gear.If only manual steering gear is designed to one with steering control valve, then be called semi-monolithic formula hydraulic power steering gear, when heavy-duty vehicle uses more than three or three or during rear axle steering, generally uses the steering swivel system of semi-monolithic formula hydraulic power steering gear and a plurality of power cylinder combination.At present, also there is not more perfect semi-monolithic formula hydraulic power steering gear on the market, in traditional semi-monolithic formula hydraulic power steering gear, the unitized construction of manual steering gear and steering control valve is reasonable inadequately than complexity, and owing to use coil spring as the middle element of returning of steering control valve, volume is big, and poor performance in returning is stable inadequately in use.
Summary of the invention
The purpose of this utility model be to provide a kind of rational in infrastructure, volume is little, return in the semi-monolithic formula hydraulic power steering gear of the good and good stability of performance.
The utility model is that the technical scheme that its technical matters of solution is adopted is:
A kind of semi-monolithic formula hydraulic power steering gear, comprise manual steering gear, be provided with steering screw in the described manual steering gear, the manual steering gear front end connects steering control valve, described steering control valve is provided with oil inlet, return opening and function hydraulic fluid port, in steering control valve, be provided with spool, described steering screw one end connects spool, the other end steering nut that is in transmission connection, the described steering nut rocker shaft that has been connected with a joggle, mechanism between steering control valve and manual steering gear, being equipped with back, mechanism comprises the connector that connects steering control valve and manual steering gear in described time, described steering screw passes connector and is connected with spool, is provided with the dish spring in connector, and described dish spring is installed in the flange side on the steering screw.
Further, 4 groups of dish springs respectively are equipped with in described flange both sides, and 4 groups of dish springs of each side distribute along the steering screw radial symmetry.
Further, described steering control valve front end is equipped with the input shaft assembly, and described input shaft assembly is connected with steering screw by cross connecting shaft cover.
Further, described steering control valve front end is equipped with the mechanical stop assembly, and described mechanical stop assembly is connected with steering screw by cross connecting shaft cover.
Further, described manual steering gear end is equipped with down the loop steering control valve, described loop steering control valve down is provided with down the loop oil inlet, the loop return opening reaches return circuit hydraulic fluid port down down, and being provided with down in the steering control valve of following loop, the loop spool is connected with steering screw.
Described steering control valve front end is equipped with angle transmission device input shaft assembly, and described angle transmission device input shaft assembly is connected with angle transmission device output shaft assembly by bevel gear set.
The beneficial effects of the utility model are: mechanism's combination machinery deflector and steering control valve during the utility model passes through back, structure is provided with rationally, adopts the dish spring as element in returning, and performance is good in making back, turn to more stablely, the utility model is suitable for the high vehicle of steering shaft load to be used; And the utility model can install mechanical stop additional, can prevent that like this deflector oil pressure that wheel flutter causes when forwarding the locking position to is too high, protection diverter mechanism nonoverload; In addition, semi-monolithic formula hydraulic steering gear of the present utility model not only can be set to the single loop structure, can also be set to the double loop structure, and field of application is more extensive; In addition, the utility model can also load the angle transmission device at the steering control valve front end, to change driving angle, helps to realize the function that turns to of car load.The utility model can with the combination of different mechanism, applied range, manual steering gear, mechanical stop and angle rot all can use the hydraulic oil of steering control valve lubricated, make more reasonable structure.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of embodiment one;
Fig. 2 is the structural representation of embodiment two;
Fig. 3 is the structural representation of embodiment three;
Fig. 4 is the structural representation of embodiment four.
The specific embodiment
With reference to Fig. 1, embodiment one of the present utility model, a kind of semi-monolithic formula hydraulic power steering gear, comprise manual steering gear 2, be provided with steering screw 21 in the described manual steering gear 2, manual steering gear 2 front ends connect steering control valve 1, described steering control valve 1 is provided with oil inlet 12, return opening 13 and energy hydraulic fluid port 14, in steering control valve 1, be provided with spool 11, described steering screw 21 1 ends connect spool 11, the other end steering nut 22 that is in transmission connection, described steering nut 22 rocker shaft 23 that has been connected with a joggle, mechanism 3 between steering control valve 1 and manual steering gear 2, being equipped with back, mechanism 3 comprises the connector 31 that connects steering control valve 1 and manual steering gear 2 in described time, described steering screw 21 passes connector 31 and is connected with spool 11, is provided with dish spring 32 in connector 31, and described dish spring 32 is installed in flange 211 sides on the steering screw 21.Mechanism's 3 combination machinery deflectors 2 and steering control valve 1 during the utility model passes through back, and adopt dish spring 32 as element in returning, performance is good in returning, and turns to more stable.
As optimal way of the present utility model, 4 groups of dish springs 32 respectively are equipped with in described flange 211 both sides, and 4 groups of dish springs 32 of each side distribute along steering screw 21 radial symmetry, and every group of dish spring 32 is two, superimposed after again to lumping together.Be provided with rational in infrastructurely like this, performance is good in returning, and uses stability and safety.Wherein, be provided with thrust baring 33 between described dish spring 32 and the flange 211.The dish spring 32 that flange 211 both sides are symmetrically distributed can promote steering screw 211 and get back to midway location.And the resiliency characteristics of the dish spring 32 by changing monolithic or the quantity of dish spring 32 or the array configuration of dish spring 32 can change the hand-power characteristic that the utility model turns to.
Among the embodiment one of the present utility model, steering control valve 1 front end is equipped with input shaft assembly 4, is combined as single loop semi-monolithic formula hydraulic power steering gear, wherein, described input shaft assembly 4 is connected with steering screw 21 by cross connecting shaft cover 15, makes connection steady, thus transferring power better.
With reference to Fig. 2, embodiment two of the present utility model is equipped with mechanical stop assembly 5 at steering control valve 1 front end, and described mechanical stop assembly 5 is connected with steering screw 21 by cross connecting shaft cover 15.After installing mechanical stop additional, can prevent that the deflector oil pressure that wheel flutter causes when forwarding the locking position to is too high, protection diverter mechanism nonoverload.
With reference to Fig. 3, embodiment three of the present utility model, dress is loaded onto a following loop steering control valve 7 more in manual steering gear 2 rear ends, just can form double loop semi-monolithic formula hydraulic power steering gear.Following loop steering control valve 7 is provided with down loop oil inlet 72, loop return opening 73 reaches return circuit hydraulic fluid port 74 down down, and being provided with down in following loop steering control valve 7, loop spool 71 is connected with steering screw 21.In use, the spool 11 that just can drive steering control valve 1 that moves of steering screw 21 reaches following loop spool 71 motions of loop steering control valve 7 down, wherein, steering control valve 1 and following loop steering control valve 7 shared one time middle mechanisms 3, and it is separate, connect two separate hydraulic efficiency power uniies respectively, for example can one connect engine-driven oil pump, another connects the oil pump of wheel drive.Make that like this field of application of the present utility model is wider.
With reference to Fig. 4, embodiment four of the present utility model can install the angle transmission device additional to change driving angle, helps to realize the function that turns to of car load, makes that the utility model field of application is more extensive.Wherein, steering control valve 1 front end is equipped with angle transmission device input shaft assembly 61, and described angle transmission device input shaft assembly 61 is connected with angle transmission device output shaft assembly 62 by bevel gear set 63, realizes the change of angle.
During the vehicle straight-line travelling, mediating under the effect of steering control valve 1 mechanism 3 in returning, also is that spool 11 mediates, 4 control port standard-sized sheets of steering control valve 1, oil inlet 12, return opening 13 and function hydraulic fluid port 14 communicate, and the utility model does not play the hydraulic booster effect.
When steering screw 21 is right handed screw, the driver beats bearing circle left, and input shaft drives steering screw 21 and turns left, and steering screw 21 drives steering nut 22 and moves down, because the pavement friction resistance of wheel flutter, so steering nut 22 has the resistance that moves down.Spool 11 be contained in the concentric steering control valve 1 of input shaft in, steering screw 21 and bonded assembly spool 11 can axially move forward together like this, can change the position on spool 11 control limits like this, make from the high pressure oil of steering pump input and flow to oil pocket of power cylinder, promote wheel flutter and rotate by steering control valve 1.The resistance of wheel flutter is big more, and the axial internal clearance of spool 11 is big more, and the hydraulic booster oil pressure is high more, up to steering control valve 1 complete shut-down at this moment the hydraulic booster oil pressure reach system's MTP.By the servo motion of above-mentioned control cock, realize the Vehicular turn hydraulic booster.
Claims (7)
1. semi-monolithic formula hydraulic power steering gear, comprise manual steering gear (2), be provided with steering screw (21) in the described manual steering gear (2), manual steering gear (2) front end connects steering control valve (1), described steering control valve (1) is provided with oil inlet (12), return opening (13) and function hydraulic fluid port (14), in steering control valve (1), be provided with spool (11), described steering screw (21) one ends connect spool (11), the other end steering nut (22) that is in transmission connection, described steering nut (22) rocker shaft (23) that has been connected with a joggle, it is characterized in that: mechanism (3) between steering control valve (1) and manual steering gear (2), being equipped with back, mechanism in described time (3) comprises the connector (31) that connects steering control valve (1) and manual steering gear (2), described steering screw (21) passes connector (31) and is connected with spool (11), be provided with dish spring (32) in connector (31), described dish spring (32) is installed in flange (211) side on the steering screw (21).
2. a kind of semi-monolithic formula hydraulic power steering gear according to claim 1 is characterized in that: 4 groups of dish springs (32) respectively are equipped with in described flange (211) both sides, and 4 groups of dish springs (32) of each side distribute along steering screw (21) radial symmetry.
3. a kind of semi-monolithic formula hydraulic power steering gear according to claim 1 and 2, it is characterized in that: described steering control valve (1) front end is equipped with input shaft assembly (4), and described input shaft assembly (4) is connected with steering screw (21) by cross connecting shaft cover (15).
4. a kind of semi-monolithic formula hydraulic power steering gear according to claim 1 and 2, it is characterized in that: described steering control valve (1) front end is equipped with mechanical stop assembly (5), and described mechanical stop assembly (5) is connected with steering screw (21) by cross connecting shaft cover (15).
5. a kind of semi-monolithic formula hydraulic power steering gear according to claim 4, it is characterized in that: loop steering control valve (7) is equipped with down in described manual steering gear (2) rear end, described loop steering control valve (7) down is provided with down loop oil inlet (72), loop return opening (73) reaches return circuit hydraulic fluid port (74) down down, and being provided with down in following loop steering control valve (7), loop spool (71) is connected with steering screw (21).
6. a kind of semi-monolithic formula hydraulic power steering gear according to claim 1 and 2, it is characterized in that: described steering control valve (1) front end is equipped with angle transmission device input shaft assembly (61), and described angle transmission device input shaft assembly (61) is connected with angle transmission device output shaft assembly (62) by bevel gear set (63).
7. a kind of semi-monolithic formula hydraulic power steering gear according to claim 1 and 2 is characterized in that: be provided with thrust baring (33) between described dish spring (32) and the flange (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301791U CN201390284Y (en) | 2009-03-31 | 2009-03-31 | Semi-integral type hydraulic assistance steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920301791U CN201390284Y (en) | 2009-03-31 | 2009-03-31 | Semi-integral type hydraulic assistance steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201390284Y true CN201390284Y (en) | 2010-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920301791U Expired - Fee Related CN201390284Y (en) | 2009-03-31 | 2009-03-31 | Semi-integral type hydraulic assistance steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201390284Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709344A (en) * | 2014-11-28 | 2015-06-17 | 江门市兴江转向器有限公司 | Semi-integral type hydraulic power-assisted multi-axle steering system and control method thereof |
| CN111874097A (en) * | 2020-07-14 | 2020-11-03 | 徐州重型机械有限公司 | Rotary valve type semi-integral steering gear |
| CN112519879A (en) * | 2020-12-16 | 2021-03-19 | 南通环球转向器制造有限公司 | Rotary valve type double-loop semi-integral hydraulic power steering gear |
| CN114426058A (en) * | 2022-02-24 | 2022-05-03 | 第一拖拉机股份有限公司 | Closed type bidirectional rotation control mechanism adopting double torsion springs to return to positive |
-
2009
- 2009-03-31 CN CN200920301791U patent/CN201390284Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104709344A (en) * | 2014-11-28 | 2015-06-17 | 江门市兴江转向器有限公司 | Semi-integral type hydraulic power-assisted multi-axle steering system and control method thereof |
| CN104709344B (en) * | 2014-11-28 | 2017-04-12 | 徐州重型机械有限公司 | Semi-integral type hydraulic power-assisted multi-axle steering system and control method thereof |
| CN111874097A (en) * | 2020-07-14 | 2020-11-03 | 徐州重型机械有限公司 | Rotary valve type semi-integral steering gear |
| CN111874097B (en) * | 2020-07-14 | 2021-11-23 | 徐州重型机械有限公司 | Rotary valve type semi-integral steering gear |
| CN112519879A (en) * | 2020-12-16 | 2021-03-19 | 南通环球转向器制造有限公司 | Rotary valve type double-loop semi-integral hydraulic power steering gear |
| CN114426058A (en) * | 2022-02-24 | 2022-05-03 | 第一拖拉机股份有限公司 | Closed type bidirectional rotation control mechanism adopting double torsion springs to return to positive |
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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: 20100127 Termination date: 20180331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |