CN102862604B - Double-front axle ladder vehicle all hydraulic pressure steering-gear - Google Patents
Double-front axle ladder vehicle all hydraulic pressure steering-gear Download PDFInfo
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- CN102862604B CN102862604B CN201210346781.0A CN201210346781A CN102862604B CN 102862604 B CN102862604 B CN 102862604B CN 201210346781 A CN201210346781 A CN 201210346781A CN 102862604 B CN102862604 B CN 102862604B
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- steeraxle
- steering
- pull bar
- swing arm
- middle swing
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- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 239000002828 fuel tank Substances 0.000 claims description 11
- 230000007547 defect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 51
- 238000005516 engineering process Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000012946 outsourcing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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Abstract
The present invention discloses a kind of double-front axle ladder vehicle all hydraulic pressure steering-gear, the first steeraxle and the second steeraxle is provided with in the front portion of vehicle frame, be provided with hydro-steering follower and middle swing arm between first steeraxle and the second steeraxle, wherein hydro-steering follower is arranged on the lateral surface of chassis side rail; The front end of the first pull bar and the track arm swivel coupling of the first steeraxle, and the lower hinge of the rear end of the first pull bar and middle swing arm; The front end of the second pull bar and the lower hinge of middle swing arm, and the track arm swivel coupling of the rear end of the second pull bar and described second steeraxle.Original single front axle steering system is adjusted to present double-front-axle steering by the present invention, so just can overcome the defect that original single front axle steering system load is large well, and the present invention adopts the track arm of same middle swing arm driving first steeraxle 2 and the second steeraxle 3 synchronously to turn to, structure is simple, easy to implement.
Description
Technical field
The present invention relates to ladder vehicle field, specifically, particularly relate to a kind of all hydraulic pressure steering-gear of double-front axle ladder vehicle.
Background technology
Existing ladder vehicle is all single propons ladder vehicle, and its steering swivel system is single front axle steering system, namely on propons H-girder, installs double-piston two-way cylinder additional, and realizes turning to by this oil cylinder control arm for steering knuckle of right hand and left hand.In use, we find that the load of existing single front axle steering system is too large, are badly in need of solving the problems of the technologies described above for this reason.
Summary of the invention
Technical matters to be solved by this invention is all hydraulic pressure steering-gear providing a kind of double-front axle ladder vehicle, to overcome the too large defect of existing single front axle steering system load, and solves the problem that two propons synchronously turn to.
Technical scheme of the present invention is as follows: a kind of double-front axle ladder vehicle all hydraulic pressure steering-gear, comprise vehicle frame (1), the first steeraxle (2) is provided with in the front portion of this vehicle frame (1), its improvement is: the front portion of described vehicle frame (1) is also provided with the second steeraxle (3), and this second steeraxle (3) come the rear of described first steeraxle (2);
Hydro-steering follower (4) and middle swing arm (5) is provided with between described first steeraxle (2) and the second steeraxle (3), wherein hydro-steering follower (4) is arranged on the lateral surface of described vehicle frame (1) longeron, and the upper end of described middle swing arm (5) is solidly set on the output shaft of this hydro-steering follower (4);
First pull bar (6) is set between described first steeraxle (2) and middle swing arm (5), the front end of this first pull bar (6) and track arm (2a) swivel coupling of the first steeraxle (2), and the lower hinge of the rear end of the first pull bar (6) and described middle swing arm (5);
Between described middle swing arm (5) and the second steeraxle (3), the second pull bar (7) is set, the front end of this second pull bar (7) and the lower hinge of middle swing arm (5), and track arm (3a) swivel coupling of the rear end of the second pull bar (7) and described second steeraxle (3).
The present invention, on the basis of existing structure, has set up second steeraxle (3) in the front portion of described vehicle frame (1), and this second steeraxle (3) come the rear of described first steeraxle (2).
Hydro-steering follower (4) and middle swing arm (5) is provided with between described first steeraxle (2) and the second steeraxle (3), wherein hydro-steering follower (4) is arranged on the lateral surface of described vehicle frame (1) longeron, and the upper end of described middle swing arm (5) is solidly set on the output shaft of this hydro-steering follower (4); First pull bar (6) is set between described first steeraxle (2) and middle swing arm (5), the front end of this first pull bar (6) and track arm (2a) swivel coupling of the first steeraxle (2), and the lower hinge of the rear end of the first pull bar (6) and described middle swing arm (5); Between described middle swing arm (5) and the second steeraxle (3), the second pull bar (7) is set, the front end of this second pull bar (7) and the lower hinge of middle swing arm (5), and track arm (3a) swivel coupling of the rear end of the second pull bar (7) and described second steeraxle (3).
Above-mentioned hydro-steering follower (4) is oscillating pump, and during its work, output shaft can rotate, and then drives the middle swing arm (5) on output shaft to swing.As shown in Figure 1, when the lower end of middle swing arm (5) swings forward, drive above-mentioned first pull bar (6) and the second pull bar (7) to move forward simultaneously, and then make the track arm synchronous axial system of the first steeraxle (2) and the second steeraxle (3), realize vehicle left steering; When the lower end of middle swing arm (5) swings backward, drive above-mentioned first pull bar (6) and the second pull bar (7) to move backward simultaneously, and then make the track arm synchronous axial system of the first steeraxle (2) and the second steeraxle (3), realize vehicle right steering.The principle of work driving Vehicular turn when rotating as track arm is technology known in those skilled in the art, does not repeat at this.
in sum, the present invention has set up a steeraxle on original structure basis, by former
the single front axle steering system had is adjusted to present double-front-axle steering, so just can be well
overcome the defect that original single front axle steering system load is large.Further, the present invention adopt same in
between swing arm drive the first pull bar (6) and the second pull bar (7) mobile simultaneously, and then drive first
the track arm of steeraxle (2) and the second steeraxle (3) synchronously turns to, and structure is simple, easily
in enforcement, have good technology and economic value, its architectural feature is particularly suitable for ladder vehicle
the feature that chassis is short, is suitable for large-scale promotion and uses.
In the present embodiment, described first pull bar (6) and the hinge-point of middle swing arm (5) are positioned at the below of the second pull bar (7) and middle swing arm (5) hinge-point.
As a kind of hydraulic efficiency pressure system driving the work of this steering swivel system, the oil inlet of described hydro-steering follower (4) is connected with two actuator ports of all-hydraulic steering gear (8) respectively with return opening, the input shaft of this all-hydraulic steering gear (8) is set with bearing circle (F), and the oil inlet of all-hydraulic steering gear (8) is connected with the oil outlet of flow stabilizing valve (9);
The oil inlet of described flow stabilizing valve (9) is connected with oil pump (11) by oil inlet (10), this oil inlet (10) is in series with check valve (12), and oil pump (11) is connected with fuel tank (13);
The return opening of described all-hydraulic steering gear (8) is connected with fuel tank (13) by oil return pipe (14), and two back leakage connections of described flow stabilizing valve (9) are connected with this oil return pipe (14).
Above-mentioned hydraulic efficiency pressure system farthest can use the hydraulic unit of original single front axle steering system, thus simplified structure preferably, and then reduce costs.Certainly, drive the hydraulic efficiency pressure system of this steering swivel system work to have a variety of, be not limited to said structure.
Beneficial effect: the present invention has set up a steeraxle on original structure basis, is adjusted to present double-front-axle steering by original single front axle steering system, so just can overcome the defect that original single front axle steering system load is large well.And, the present invention adopts same middle swing arm to drive the first pull bar (6) and the second pull bar (7) to move simultaneously, and then drive the track arm of the first steeraxle (2) and the second steeraxle (3) synchronously to turn to, structure is simple, easy to implement, have good technology and economic value, its architectural feature is particularly suitable for the short feature in ladder vehicle chassis, is suitable for large-scale promotion and uses.
Accompanying drawing explanation
Fig. 1 is front view of the present invention;
Fig. 2 is the birds-eye view of Fig. 1;
Fig. 3 is hydraulic schematic diagram of the present invention.
In above accompanying drawing, the title of each label is as follows:
1-vehicle frame, 2-first steeraxle, 3-second steeraxle, 4-hydro-steering follower,
swing arm in the middle of 5-,
6-first pull bar, 7-second pull bar, 8-all-hydraulic steering gear, 9-flow stabilizing valve, 10-enter
oil pipe,
11-oil pump, 12-check valve, 13-fuel tank, 14-oil return pipe, F-bearing circle.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Fig. 1,2 and 3, the present invention is formed primarily of vehicle frame 1, first steeraxle 2, second steeraxle 3, hydro-steering follower 4, middle swing arm 5, first pull bar 6, second pull bar 7, all-hydraulic steering gear 8, flow stabilizing valve 9, oil inlet 10, oil pump 11, check valve 12, fuel tank 13, oil return pipe 14 and bearing circle F, wherein vehicle frame 1 adopts the structure of existing ladder vehicle substantially, does not repeat at this.Be provided with the first steeraxle 2 in the front portion of above-mentioned vehicle frame 1, this first steeraxle 2 is by arranging from left to right, and the structure of the first steeraxle 2 adopts prior art, and the first steeraxle 2 also adopts prior art with the connection structure of vehicle frame 1, does not all repeat at this.
As inventive point of the present invention, be also provided with the second steeraxle 3 in the front portion of above-mentioned vehicle frame 1, this second steeraxle 3 also comes the rear of described first steeraxle 2, and namely the second steeraxle 3 is also by arranging from left to right.The structure of above-mentioned second steeraxle 3 is identical with the first steeraxle 2, and the connection structure of the connection structure of the second steeraxle 3 and vehicle frame 1 and the first steeraxle 2 and vehicle frame 1 is completely the same, does not also repeat at this.
As shown in Figure 1, 2, hydro-steering follower 4 and middle swing arm 5 is provided with between described first steeraxle 2 and the second steeraxle 3, wherein hydro-steering follower 4 is outsourcing piece, it is in fact an oscillating oil cylinder, this hydro-steering follower 4 is arranged on the lateral surface of described vehicle frame 1 longeron, and the upper end of described middle swing arm 5 is solidly set on the output shaft of this hydro-steering follower 4.When above-mentioned hydro-steering follower 4 works, the output shaft of hydro-steering follower 4 can rotate, and then swing arm 5 swing in the middle of driving.
Can find out further from Fig. 1,2, between described first steeraxle 2 and middle swing arm 5, the first pull bar 6 is set, the front end of this first pull bar 6 and the track arm 2a swivel coupling of the first steeraxle 2, and the lower hinge of the rear end of the first pull bar 6 and described middle swing arm 5.Between described middle swing arm 5 and the second steeraxle 3, second pull bar 7 is set, the front end of this second pull bar 7 and the lower hinge of middle swing arm 5, and the track arm 3a swivel coupling of the rear end of the second pull bar 7 and described second steeraxle 3.In the present embodiment, described first pull bar 6 and the hinge-point of middle swing arm 5 are positioned at the below of the second pull bar 7 and middle swing arm 5 hinge-point.
With reference to Fig. 1,2, and composition graphs 3 can be found out, the oil inlet of described hydro-steering follower 4 is connected with an actuator port of all-hydraulic steering gear 8 by pipeline, the oil outlet of this hydro-steering follower 4 is connected with another actuator port of all-hydraulic steering gear 8 by corresponding pipeline, and can oil outlet be served as during the use of the oil inlet of hydro-steering follower 4, and also can serve as oil inlet when oil outlet uses.
With reference to Fig. 1,2, and composition graphs 3 can be found out further, and above-mentioned all-hydraulic steering gear 8 is outsourcing piece, the input shaft of this all-hydraulic steering gear 8 is set with bearing circle F, and bearing circle F handles for the driver of ladder vehicle.The oil inlet of above-mentioned all-hydraulic steering gear 8 is connected with the oil outlet of flow stabilizing valve 9, and this flow stabilizing valve 9 is outsourcing piece, and its effect is regime flow.The oil inlet of described flow stabilizing valve 9 is connected with oil pump 11 by oil inlet 10, and this oil inlet 10 is in series with check valve 12, and the oil inlet end of this check valve 12 is towards oil pump 11.Further, above-mentioned oil pump 11 is connected with fuel tank 13, to be entered in oil inlet 10 by the oil pump in fuel tank 13 by oil pump 11.
The return opening of above-mentioned all-hydraulic steering gear 8 is connected with fuel tank 13 by oil return pipe 14, and two of described flow stabilizing valve 9 back leakage connections are connected with this oil return pipe 14, thus hydraulic oil is got back in fuel tank 13.
Principle of work of the present invention is as follows:
During work, described oil pump 11 is from oil suction in fuel tank 13, and the high pressure oil of generation, by oil inlet 10, check valve 12 and flow stabilizing valve 9, arrives above-mentioned all-hydraulic steering gear 8.
When the input shaft of all-hydraulic steering gear 8 rotates (being realized by ladder vehicle driver steering dish F), all-hydraulic steering gear 8 injects high pressure oil in hydro-steering follower 4.When injecting high pressure oil to the oil inlet of hydro-steering follower 4, the chamber of its return opening side is low pressure chamber, pressure oil oil return in this low pressure chamber is to described all-hydraulic steering gear 8, so just drive the lower end forward rocking motion (as shown in Figure 1) of intermediate rockers 9, thus drive the first pull bar 6 and the second pull bar 7 to travel forward simultaneously, and then drive the track arm 2a of the first steeraxle 2 and the track arm 3a synchronous axial system of the second steeraxle 3, realize vehicle left steering;
When the input shaft of above-mentioned all-hydraulic steering gear 8 turns to a certain degree (being realized by ladder vehicle driver steering dish F), valve group commutation in all-hydraulic steering gear 8, and hydraulic steering gear 8 injects high pressure oil in the return opening of hydro-steering follower 4, now the chamber of hydro-steering follower 4 oil inlet side is low pressure chamber, pressure oil oil return in this low pressure chamber is in all-hydraulic steering gear 8, the lower end of intermediate rockers 9 is so just driven to swing backward (with reference to Fig. 1), thus drive the first pull bar 6 and the second pull bar 7 to move backward simultaneously, and then drive the track arm 2a of the first steeraxle 2 and the track arm 3a synchronous axial system of the second steeraxle 3, realize vehicle right steering.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a double-front axle ladder vehicle all hydraulic pressure steering-gear, comprise vehicle frame (1), the first steeraxle (2) is provided with in the front portion of this vehicle frame (1), it is characterized in that: the front portion of described vehicle frame (1) is also provided with the second steeraxle (3), and this second steeraxle (3) come the rear of described first steeraxle (2);
Hydro-steering follower (4) and middle swing arm (5) is provided with between described first steeraxle (2) and the second steeraxle (3), wherein hydro-steering follower (4) is arranged on the lateral surface of described vehicle frame (1) longeron, and the upper end of described middle swing arm (5) is solidly set on the output shaft of this hydro-steering follower (4);
First pull bar (6) is set between described first steeraxle (2) and middle swing arm (5), the front end of this first pull bar (6) and track arm (2a) swivel coupling of the first steeraxle (2), and the lower hinge of the rear end of the first pull bar (6) and described middle swing arm (5);
Between described middle swing arm (5) and the second steeraxle (3), the second pull bar (7) is set, the front end of this second pull bar (7) and the lower hinge of middle swing arm (5), and track arm (3a) swivel coupling of the rear end of the second pull bar (7) and described second steeraxle (3).
2. double-front axle ladder vehicle all hydraulic pressure steering-gear according to claim 1, is characterized in that: described first pull bar (6) is positioned at the below of the second pull bar (7) and middle swing arm (5) hinge-point with the hinge-point of middle swing arm (5).
3. double-front axle ladder vehicle all hydraulic pressure steering-gear according to claim 1 and 2, it is characterized in that: the oil inlet of described hydro-steering follower (4) is connected with two actuator ports of all-hydraulic steering gear (8) respectively with return opening, the input shaft of this all-hydraulic steering gear (8) is set with bearing circle (F), and the oil inlet of all-hydraulic steering gear (8) is connected with the oil outlet of flow stabilizing valve (9);
The oil inlet of described flow stabilizing valve (9) is connected with oil pump (11) by oil inlet (10), this oil inlet (10) is in series with check valve (12), and oil pump (11) is connected with fuel tank (13);
The return opening of described all-hydraulic steering gear (8) is connected with fuel tank (13) by oil return pipe (14), and two back leakage connections of described flow stabilizing valve (9) are connected with this oil return pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346781.0A CN102862604B (en) | 2012-09-18 | 2012-09-18 | Double-front axle ladder vehicle all hydraulic pressure steering-gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210346781.0A CN102862604B (en) | 2012-09-18 | 2012-09-18 | Double-front axle ladder vehicle all hydraulic pressure steering-gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102862604A CN102862604A (en) | 2013-01-09 |
| CN102862604B true CN102862604B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210346781.0A Active CN102862604B (en) | 2012-09-18 | 2012-09-18 | Double-front axle ladder vehicle all hydraulic pressure steering-gear |
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| CN (1) | CN102862604B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104443026A (en) * | 2014-10-21 | 2015-03-25 | 宁波润轴汽配有限公司 | Steering drive axle with two steering knuckle arms |
| CN105405348B (en) * | 2015-12-11 | 2018-05-15 | 广东交通职业技术学院 | A kind of fully hydraulic servo steering teaching bench |
| CN105405349B (en) * | 2015-12-11 | 2018-05-15 | 广东交通职业技术学院 | A kind of teaching combining theory with practice method of hydraulic steering system course |
| CN107187497B (en) * | 2017-05-22 | 2020-08-21 | 安徽江淮汽车集团股份有限公司 | Double-front-axle automobile steering system |
| CN107140016A (en) * | 2017-05-22 | 2017-09-08 | 安徽江淮汽车集团股份有限公司 | A kind of double-front axle automobile steering system |
| CN107140013B (en) * | 2017-05-22 | 2020-08-21 | 安徽江淮汽车集团股份有限公司 | Double-front-axle automobile steering system |
| CN107161212B (en) * | 2017-05-22 | 2020-08-21 | 安徽江淮汽车集团股份有限公司 | Double-front-axle automobile steering system |
| CN107140015B (en) * | 2017-05-22 | 2020-08-21 | 安徽江淮汽车集团股份有限公司 | Double-front-axle automobile steering system |
| CN113335377A (en) * | 2021-05-27 | 2021-09-03 | 重庆望江工业有限公司 | Tandem type double front axle steering power assisting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981579Y (en) * | 2006-01-27 | 2007-11-28 | 中国三江航天工业集团公司 | Multi-axis grouping steering gear |
| CN101161532A (en) * | 2006-10-13 | 2008-04-16 | 株式会社日立制作所 | Steering device |
| CN201305027Y (en) * | 2008-10-13 | 2009-09-09 | 中国三江航天工业集团公司特种车辆技术中心 | Compact break-away front double-bridge steering drive mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE530099C2 (en) * | 2006-07-05 | 2008-03-04 | Volvo Lastvagnar Ab | Level control for vehicle suspension |
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2012
- 2012-09-18 CN CN201210346781.0A patent/CN102862604B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200981579Y (en) * | 2006-01-27 | 2007-11-28 | 中国三江航天工业集团公司 | Multi-axis grouping steering gear |
| CN101161532A (en) * | 2006-10-13 | 2008-04-16 | 株式会社日立制作所 | Steering device |
| CN201305027Y (en) * | 2008-10-13 | 2009-09-09 | 中国三江航天工业集团公司特种车辆技术中心 | Compact break-away front double-bridge steering drive mechanism |
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| CN102862604A (en) | 2013-01-09 |
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Effective date of registration: 20180110 Address after: 401336 long circuit No. 8 (10) of Nanan District, Chongqing Patentee after: Chongqing Da Hang industry Co., Ltd. Address before: 401336 Chongqing Nan'an District No. 8 circuit Patentee before: Chongqing Dima Industry Co., Ltd. |