CN203172376U - Three-rear axle suspension of motor lorry - Google Patents
Three-rear axle suspension of motor lorry Download PDFInfo
- Publication number
- CN203172376U CN203172376U CN 201320163193 CN201320163193U CN203172376U CN 203172376 U CN203172376 U CN 203172376U CN 201320163193 CN201320163193 CN 201320163193 CN 201320163193 U CN201320163193 U CN 201320163193U CN 203172376 U CN203172376 U CN 203172376U
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- China
- Prior art keywords
- leaf spring
- commutation piece
- rear axle
- axle
- commutation
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Abstract
The utility model discloses a three-rear axle suspension of a motor lorry. The three-rear axle suspension comprises a first rear axle, a second rear axle and a third rear axle, which are arranged on a frame in parallel, a front plate spring, a middle plate spring and a rear plate spring for positioning the first, second and third rear axles respectively, and lugs corresponding to the plate springs one to one. The three-rear axle suspension is characterized by further comprising a connecting rod mechanism for connecting the plate springs and coiled lugs and lifting the first and third rear axles while the second rear axle is descended, a hydraulic cylinder for pushing the connecting rod mechanism to move, and a valve body for controlling the hydraulic cylinder to work. The utility model aims to provide the three-rear axle suspension of the motor lorry, capable of lifting tires of two of the three rear axles.
Description
Technical field
The utility model belongs to the automobile hanging field, and three back axles that especially relate to a kind of autotruck hang.
Background technology
At present, in order to improve the body load-carrying ability, large-scale autotruck adopts a plurality of back axles usually, for the bigger automobile of load carrying ability, can adopt the arrangement of three back axles.In order to guarantee after the load-carrying; all wheels can both contact with ground; vertical load between each vehicle bridge approaches; usually can adopt balance suspension; as Chinese patent Granted publication number: CN 2507683Y; a kind of multiaxis extra heavy off road vehicle hydro-pneumatic spring equalizing-suspension device is disclosed; it is every vehicle bridge hydro-pneumatic spring to be set; the hydro-pneumatic spring bearing; following longitudinal rod; the lower thrust rod support; last longitudinal rod; on the basis of lateral rod; all vehicle bridge are divided into two groups of front and back; the hydro-pneumatic spring of each group vehicle bridge homonymy is communicated with, and forms 4 balanced supports.Can make each vehicle bridge stress equalization.Yet because the back axle number is more, the tire of back axle all contacts with ground, and when vehicle zero load or underloading, resistance to motion is bigger, has improved oil consumption virtually.In addition, when turning, turn radius is bigger, the turning underaction.
The utility model content
The utility model be in order to overcome in the prior art since the automobile of three back axles resistance to motion is big when unloaded, oil consumption is higher and the deficiency of the inconvenience of turning, provide can with three back axles wherein the tire of two bridges a kind of autotruck three back axles of carrying out lifting hang.
To achieve these goals, the utility model is by the following technical solutions:
Three back axles of a kind of autotruck of the present utility model hang, be included in first back axle, second back axle and the third rear axle that are arranged in parallel on the vehicle frame, the leaf spring that is used for location first back axle, second back axle and third rear axle, be respectively preceding leaf spring, middle leaf spring and back leaf spring, and the hanger corresponding with each leaf spring, it is characterized in that also comprising will be for connecting leaf spring and grasswort and making first back axle and the valve body of the connecting rod mechanism of third rear axle rising, the hydraulic actuating cylinder that is used for the promotion connecting rod mechanism movement and control hydraulic cylinder works when second back axle descends.Hydraulic actuating cylinder acts on connecting rod mechanism, leaf spring and leaf spring two ends, back before by connecting rod mechanism hoisting force being passed to, and with first, the wheel lifting of third rear axle, just built on stilts of wheel like this.When reality is used, normally when unloaded or low carrying, with first, the wheel lift of third rear axle, thereby reduce Tyte Wear and reduce oil consumption.Simultaneously, second back axle can obtain bigger adhesive ability as drive wheel, causes the tire slipping to avoid the propulsive effort deficiency.In addition, when turning, also can lift the wheel of these two back axles, before lifting wheel, the wheelbase of vehicle is that propons is to the distance between the third rear axle, lift rear axle apart from becoming propons to the distance between second back axle, shortened wheel base like this, the tire quantity that contacts with ground reduces, it is more flexible that turning becomes, simultaneously because wheelbase shortens, and the interior wheel in the time of therefore can reducing to turn to a certain extent is poor, concerning pedestrian and other vehicle on every side, seem safer during turning.
As preferably, also comprise the damper cylinder that is communicated with valve body, be provided with flow regulating valve between described damper cylinder and the hydraulic actuating cylinder.By valve body can control hydraulic actuating cylinder and oil pump connected or and damper cylinder connect, when hydraulic actuating cylinder and damper cylinder are connected, by the throttling action of flow regulating valve, provide certain damping, can absorb the vibration from wheel, play cushioning effect preferably.
As preferably, described hydraulic actuating cylinder horizontal arrangement on vehicle frame.Can reduce like this for the taking of vertical direction space, it is also comparatively convenient to arrange.
As preferably, be provided with spring diaphragm in the described damper cylinder, spring diaphragm is divided into air chamber and grease chamber with damper cylinder.Air chamber is set can improves buffering for high-frequency vibration, by spring diaphragm damper cylinder is separated into air chamber and grease chamber, separate between air and the hydraulic oil, hydraulic oil can not produce bubble with air agitation, emulsion takes place, thereby guarantees damping effect.
As preferably, described connecting rod mechanism comprises the balance block that is rotationally connected with vehicle frame, and balance block is arranged between first back axle and second back axle, and preceding leaf spring and middle leaf spring are hinged with balance block respectively.Before leaf spring with after middle leaf spring links to each other by balance block, another vehicle bridge descends when a vehicle bridge rises, by uneven road surface the time, the assurance wheel contacts with the good of ground, the vertical load between first back axle and second back axle is balance comparatively.
As preferably, described connecting rod mechanism also comprises the commutation piece that is rotationally connected with vehicle frame, be respectively the first commutation piece, the second commutation piece, the 3rd commutation piece and the 4th commutation piece, first, the second commutation piece is arranged on the balance block both sides, the hanger of leaf spring and the first commutation piece are hinged before described, the hanger of leaf spring and the second commutation piece are hinged in described, the 3rd, the 4th commutation piece is arranged on the third rear axle both sides, described back leaf spring and the 4th commutation piece are hinged, the hanger of back leaf spring correspondence and the 3rd commutation piece are hinged, the described first commutation piece, balance block, the second commutation piece, link to each other by push rod successively between the 3rd commutation piece and the 4th commutation piece, be respectively first push rod, second push rod, the 3rd push rod and the 4th push rod.By the effect of each push rod and commutation piece, the load of first, second back axle and third rear axle is carried out balance.
Therefore, the utlity model has following beneficial effect: (1) can reduce wear on tyres with first, after the vehicle of third rear axle promotes, and reduces oil consumption; (2) can realize trailing wheel lifting and shock-absorbing function by the valve body switching.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure, petrol storage tank 1, valve body 2, flow regulating valve 3, damper cylinder 4, the first push rods 5, the second push rods 6, the second commutation pieces 7, the 3rd push rod 8, the three commutation pieces 9, the four push rods 10, the four commutation pieces 11, back leaf spring 12, third rear axle 13, middle leaf spring 14, the second back axles 15, balance block 16, the first back axles 17, preceding leaf spring 18, the first commutation pieces 19, hanger 20, vehicle frame 21, hydraulic actuating cylinder 22, oil pump 23.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Among the embodiment as shown in Figure 1, a kind of three back axles of autotruck hang, be included in first back axle 17, second back axle 15 and the third rear axle 13 that are arranged in parallel on the vehicle frame 21, first, second, and third back axle is located by leaf spring, leaf spring 18, middle leaf spring 14 and back leaf spring 12 before corresponding to respectively, leaf spring one end is hinged with between hanger 20, first, second, and third back axles and connects by connecting rod mechanism, act on connecting rod mechanism by hydraulic actuating cylinder 22 in addition in addition, make the connecting rod mechanism proper motion.
Connecting rod mechanism comprises balance block 16, commutation piece and push rod, and balance block is arranged between first back axle and second back axle, and is rotationally connected with vehicle frame, and preceding leaf spring and middle leaf spring are hinged with the two ends of balance block respectively.The commutation piece has four, and all be rotationally connected with vehicle frame, be respectively the first commutation piece 19, the second commutation piece 7, the 3rd commutation piece 9 and the 4th commutation piece 11, wherein, the first commutation piece and the second commutation piece are arranged on the both sides of balance block, the hanger of preceding leaf spring and the first commutation piece are hinged, and the hanger of middle leaf spring and the second commutation piece are hinged.Three, the 4th commutation piece is arranged on the third rear axle both sides, back leaf spring and the 4th commutation piece are hinged, the hanger of back leaf spring correspondence and the 3rd commutation piece are hinged, link to each other by push rod successively between the first commutation piece, balance block, the second commutation piece, the 3rd commutation piece and the 4th commutation piece, be respectively first push rod 5, second push rod 6, the 3rd push rod 8 and the 4th push rod 10.Hydraulic actuating cylinder horizontal arrangement on vehicle frame in addition, the piston rod of hydraulic actuating cylinder and the first commutation piece are hinged, can promote the first commutation piece rotation.
In actual use, when needs lifting tire, make hydraulic actuating cylinder and oil pump be communicated with the valve body switching, the piston rod of hydraulic actuating cylinder promotes the first commutation piece and clockwise rotates, first push rod moved right and promoted balance block and clockwise rotate this moment, the hanger of preceding leaf spring of while is upward movement under the first commutation piece drives also, and the two ends of therefore preceding leaf spring are all by the lifting that makes progress, wheel built on stilts.In like manner the wheel of third rear axle also is lifted, and has only the wheel kiss the earth of second back axle.And when not needing the lifting wheel, valve body is communicated with hydraulic actuating cylinder and damper cylinder, and provide certain damping, for unsteadiness of wheels provide damping effect by the throttling action of flow regulating valve this moment.
Claims (6)
1. three back axles of an autotruck hang, be included in first back axle (17) that is arranged in parallel on the vehicle frame (21), second back axle (15) and third rear axle (13), be used for location first back axle (17), the leaf spring of second back axle (15) and third rear axle (13), be respectively preceding leaf spring (18), middle leaf spring (14) and back leaf spring (12), and the hanger corresponding with each leaf spring (20), it is characterized in that, also comprise connecting leaf spring and grasswort and when second back axle (15) descends, making first back axle (17) and the connecting rod mechanism of third rear axle (13) rising being used for, be used for promoting the hydraulic actuating cylinder (22) of connecting rod mechanism movement and the valve body (2) of control hydraulic actuating cylinder (22) work.
2. three back axles of autotruck according to claim 1 hang, and it is characterized in that, also comprise the damper cylinder (4) that is communicated with valve body (2), are provided with flow regulating valve (3) between described damper cylinder (4) and the hydraulic actuating cylinder (22).
3. three back axles of autotruck according to claim 1 and 2 hang, and it is characterized in that, described hydraulic actuating cylinder (22) is gone up horizontal arrangement at vehicle frame (21).
4. three back axles of autotruck according to claim 2 hang, and it is characterized in that described damper cylinder is provided with spring diaphragm in (4), and spring diaphragm is divided into air chamber and grease chamber with damper cylinder.
5. three back axles of autotruck according to claim 1 and 2 hang, it is characterized in that, described connecting rod mechanism comprises the balance block (16) that is rotationally connected with vehicle frame (21), balance block (16) is arranged between first back axle (17) and second back axle (15), and preceding leaf spring (18) and middle leaf spring (14) are hinged with balance block (16) respectively.
6. three back axles of autotruck according to claim 5 hang, it is characterized in that, described connecting rod mechanism also comprises the commutation piece that is rotationally connected with vehicle frame (21), be respectively the first commutation piece (19), the second commutation piece (7), the 3rd commutation piece (9) and the 4th commutation piece (11), first, the second commutation piece is arranged on balance block (16) both sides, the hanger of leaf spring (18) and the first commutation piece (19) are hinged before described, the hanger of leaf spring (14) and the second commutation piece (7) are hinged in described, the 3rd, the 4th commutation piece is arranged on third rear axle (13) both sides, described back leaf spring (12) is hinged with the 4th commutation piece (11), the hanger of back leaf spring correspondence and the 3rd commutation piece (9) are hinged, the described first commutation piece (19), balance block (16), the second commutation piece (7), link to each other by push rod successively between the 3rd commutation piece (9) and the 4th commutation piece (11), be respectively first push rod (5), second push rod (6), the 3rd push rod (8) and the 4th push rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163193 CN203172376U (en) | 2013-04-03 | 2013-04-03 | Three-rear axle suspension of motor lorry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320163193 CN203172376U (en) | 2013-04-03 | 2013-04-03 | Three-rear axle suspension of motor lorry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203172376U true CN203172376U (en) | 2013-09-04 |
Family
ID=49069123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320163193 Expired - Fee Related CN203172376U (en) | 2013-04-03 | 2013-04-03 | Three-rear axle suspension of motor lorry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203172376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004295A (en) * | 2016-07-22 | 2016-10-12 | 安徽华菱汽车有限公司 | Suspension system and axle |
-
2013
- 2013-04-03 CN CN 201320163193 patent/CN203172376U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106004295A (en) * | 2016-07-22 | 2016-10-12 | 安徽华菱汽车有限公司 | Suspension system and axle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160607 Address after: 354200 No. 176 Renmin Road, Jilin town, Jianyang District, Fujian, Nanping Patentee after: NANPING CITY JIANYANG DISTRICT AUTO FORGING PARTS FACTORY Address before: 354209, No. 183 Renmin Road, Jilin town, Nanping, Fujian, Jianyang Patentee before: Fujian Hezhong Machinery Co., Ltd. Patentee before: Chen Xuefu |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20210403 |