CN202703679U - Power-assisted steering system for single-steering axle truck - Google Patents
Power-assisted steering system for single-steering axle truck Download PDFInfo
- Publication number
- CN202703679U CN202703679U CN 201220399163 CN201220399163U CN202703679U CN 202703679 U CN202703679 U CN 202703679U CN 201220399163 CN201220399163 CN 201220399163 CN 201220399163 U CN201220399163 U CN 201220399163U CN 202703679 U CN202703679 U CN 202703679U
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- steering
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- oil
- power
- gear
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Abstract
The utility model discloses a power-assisted steering system for a single-steering axle truck. The power-assisted steering system comprises a steering oil tank, a steering oil pump, a cycle ball type power steering gear, a steering rocker arm, a steering actuation cylinder, a steering tension rod, a frame and a steering front axle, wherein one end of the steering actuation cylinder is connected with the frame and the other end of the steering actuation cylinder is connected with the steering rocker arm; the steering oil tank and the cycle ball type power steering gear are connected with the frame by a bracket; the output end of the cycle ball type power steering gear is connected with the steering rocker arm by a spline; the steering tension rod is connected with the steering front axle; the steering rocker arm is provided with two interfaces of a ball pin head, wherein one interface is connected with the steering actuation cylinder and the other interface is connected with the steering tension rod; an oil outlet of the steering oil tank is connected with an oil inlet of the steering oil pump; an oil outlet of the steering oil pump is connected with an oil inlet of the cycle ball type power steering gear; an oil return hole of the cycle ball power steering gear is connected with an oil inlet of the steering oil tank; and two oil holes of the cycle ball type power steering gear are respectively connected with an interface at the piston rod side of the steering actuation cylinder and an interface at the cylinder barrel side.
Description
Technical field
The utility model relates to a kind of truck steering swivel system, particularly relates to a kind of single steering shaft truck steering boost system.
Background technology
Growing automotive technology has proposed more and more higher requirement to the steering swivel system of vehicle.For commercial vehicle/comm..vehicle, function more and more refinement is a trend.Under the user demand of severe duty, the power-assisted effect of ball-and-nut power steering gear commonly used can not satisfy user demand fully, and this turns to too heavy problem in the time of can causing severe duty, affect ride comfort.Present solution can be selected the deflector of large cylinder diameter, but this can increase cost again greatly.
The steering swivel system of present single steering shaft vehicle comprises steering oil reservoir, power steerig pump, ball-and-nut power steering gear, pitman arm and steering track rod, the whole power steering of the steering swivel system of this structure comes from ball-and-nut power steering gear, for severe duty, for example front axle load is the situation of 9T, but can not provide enough power steerings although ball-and-nut power steering gear commonly used is with low cost, cause chaufeur to come the steering dish with larger strength, the long-duration driving chaufeur is easily tired.
The utility model content
Order of the present utility model is to overcome above-mentioned defective of the prior art, and a kind of single steering shaft truck steering boost system that can guarantee enough power steerings is provided.
Single steering shaft truck steering boost system of the present utility model, comprise steering oil reservoir, power steerig pump, ball-and-nut power steering gear, pitman arm, steering actuation cylinder, steering track rod, vehicle frame and steering front shaft, described steering actuation cylinder one end is connected with described vehicle frame, one end is connected with pitman arm, these two ends connect by ball end respectively
Described steering oil reservoir all is connected with described vehicle frame by support with described ball-and-nut power steering gear, and the mouth of described ball-and-nut power steering gear links to each other with described pitman arm by spline, and described steering track rod is connected with described steering front shaft,
Described pitman arm has the interface of two ball pin heads, and one is connected with described steering actuation cylinder, and one is connected with described steering track rod, and the middle part of described pitman arm is connected with described steering actuation cylinder by a ball pin head,
The oil outlet of described steering oil reservoir links to each other with the oil inlet of described power steerig pump, the oil outlet of described power steerig pump is connected with the oil inlet of described ball-and-nut power steering gear, the return opening of described ball-and-nut power steering gear is connected with the oil inlet of described steering oil reservoir, and two hydraulic fluid ports of described ball-and-nut power steering gear are connected with the cylinder barrel side interface with the piston rod side interface of described steering actuation cylinder respectively.
Single steering shaft truck steering boost system of the present utility model can under the prerequisite that does not increase excessive cost, guarantee providing of enough power steerings.
Description of drawings
Fig. 1 is the constructional drawing of the utility model list steering shaft truck steering boost system.
Fig. 2 and Fig. 3 are the hydraulic schematic diagram of the utility model list steering shaft truck steering boost system.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Referring to Fig. 1, Fig. 1 is the constructional drawing of the utility model list steering shaft truck steering boost system.As shown in Figure 1, this system comprises steering oil reservoir 1, power steerig pump 2, ball-and-nut power steering gear 3, pitman arm 4, steering actuation cylinder 5, steering track rod 6, vehicle frame 7 and steering front shaft 8.Steering oil reservoir 1 all is connected with vehicle frame 7 by support with ball-and-nut power steering gear 3, the mouth of ball-and-nut power steering gear 3 links to each other with pitman arm 4 by spline, pitman arm 4 links to each other with steering track rod 6 with steering actuation cylinder 5, and steering track rod 6 is connected with steering front shaft 8.
In this list steering shaft truck steering boost system, pitman arm 4 has the interface of two ball pin heads, one is connected with steering actuation cylinder 5, one is connected with steering track rod 6, the top of pitman arm 4 is connected by the mouth of spline with ball-and-nut power steering gear 3, the steering torque that ball-and-nut power steering gear 3 provides passes to pitman arm 4 by spline, the middle part of pitman arm 4 is connected with steering actuation cylinder 5 by the ball pin head, the power-assisted that steering actuation cylinder 5 provides passes to pitman arm 4 by ball pin head herein, under the power-assisted of these two parts, pitman arm 4 promotes steering track rod 6 motions, thereby the steering swivel that drives steering front shaft rotates, in the situation that guarantee ease of steering, finish the action of turn inside diameter.
Referring to Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 are the hydraulic schematic diagram of the utility model list steering shaft truck steering boost system.As shown in Fig. 2,3, the hydraulic part of this list steering shaft truck steering boost system is connected to: the oil outlet of steering oil reservoir 1 links to each other with the oil inlet of power steerig pump 2, the oil outlet of power steerig pump 2 (high pressure hydraulic fluid port) is connected with the I mouth (oil inlet) of ball-and-nut power steering gear 3, and the II mouth (return opening) of ball-and-nut power steering gear 3 is connected with the oil inlet of steering oil reservoir 1.The III mouth of ball-and-nut power steering gear 3 is connected with the left side interface of steering actuation cylinder 5 (piston rod side interface), and the IV mouth of ball-and-nut power steering gear 3 is connected with the right side interface of steering actuation cylinder 5 (cylinder barrel side interface).
The pressure at steering actuation cylinder 5 two ends is to be determined by the output of ball-and-nut power steering gear 3, thereby the power-assisted direction that has guaranteed 3 pairs of pitman arms 4 of power-assisted direction and ball-and-nut power steering gear of steering actuation cylinder 5 is consistent.Steering actuation cylinder 5 one ends are connected with vehicle frame 7 by the ball pin head, and the other end is connected with pitman arm 4 by the ball pin head, and power-assisted is passed to pitman arm 4.
When direction is beaten on the chaufeur right side, as shown in Figure 2: ball-and-nut power steering gear 3 drives pitman arm 4 trend that moves right, this moment, the III mouth of ball-and-nut power steering gear 3 was high pressure, the IV mouth is low pressure, therefore the piston pushing piston bar in the steering actuation cylinder 5 moves right, drive together pitman arm 4 with ball-and-nut power steering gear 3 and move right, thus by steering track rod 6 drive steering front shafts 8 right-hand turnings to.
When direction is beaten on a chaufeur left side, as shown in Figure 3: ball-and-nut power steering gear 3 drives the trend of pitman arm 4 oriented left movements, this moment, the IV mouth of ball-and-nut power steering gear 3 was high pressure, the III mouth is low pressure, therefore the piston pushing piston bar in the steering actuation cylinder 5 is to left movement, drive together pitman arm 4 to left movement with ball-and-nut power steering gear 3, thus by steering track rod 6 drive steering front shafts 8 left-handed turnings to.
Claims (1)
1. single steering shaft truck steering boost system, it is characterized in that, this system comprises steering oil reservoir (1), power steerig pump (2), ball-and-nut power steering gear (3), pitman arm (4), steering actuation cylinder (5), steering track rod (6), vehicle frame (7) and steering front shaft (8), described steering actuation cylinder (5) one ends are connected with described vehicle frame (7), one end is connected with pitman arm (4), these two ends connect by ball end respectively
Described steering oil reservoir (1) all is connected with described vehicle frame (7) by support with described ball-and-nut power steering gear (3), the mouth of described ball-and-nut power steering gear (3) links to each other with described pitman arm (4) by spline, described steering track rod (6) is connected with described steering front shaft (8)
Described pitman arm (4) has the interface of two ball pin heads, and one is connected with described steering actuation cylinder (5), and one is connected with described steering track rod (6), and the middle part of described pitman arm (4) is connected with described steering actuation cylinder (5) by a ball pin head,
The oil outlet of described steering oil reservoir (1) links to each other with the oil inlet of described power steerig pump (2), the oil outlet of described power steerig pump (2) is connected with the oil inlet of described ball-and-nut power steering gear (3), the return opening of described ball-and-nut power steering gear (3) is connected with the oil inlet of described steering oil reservoir (1), and two hydraulic fluid ports of described ball-and-nut power steering gear (3) are connected with the cylinder barrel side interface with the piston rod side interface of described steering actuation cylinder (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399163 CN202703679U (en) | 2012-08-13 | 2012-08-13 | Power-assisted steering system for single-steering axle truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399163 CN202703679U (en) | 2012-08-13 | 2012-08-13 | Power-assisted steering system for single-steering axle truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202703679U true CN202703679U (en) | 2013-01-30 |
Family
ID=47584007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399163 Expired - Lifetime CN202703679U (en) | 2012-08-13 | 2012-08-13 | Power-assisted steering system for single-steering axle truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202703679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282013A (en) * | 2019-07-29 | 2019-09-27 | 中国重汽集团泰安五岳专用汽车有限公司 | A kind of list double-front axle turning-bar system and the heavy-duty car using the system |
| CN112373562A (en) * | 2020-11-26 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Double-front-axle steering mechanism and automobile |
-
2012
- 2012-08-13 CN CN 201220399163 patent/CN202703679U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282013A (en) * | 2019-07-29 | 2019-09-27 | 中国重汽集团泰安五岳专用汽车有限公司 | A kind of list double-front axle turning-bar system and the heavy-duty car using the system |
| CN112373562A (en) * | 2020-11-26 | 2021-02-19 | 安徽江淮汽车集团股份有限公司 | Double-front-axle steering mechanism and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |
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| CX01 | Expiry of patent term |