CN110466304B - Suspension adjusting device, single torsion bar suspension and double torsion bar suspension - Google Patents

Suspension adjusting device, single torsion bar suspension and double torsion bar suspension Download PDF

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Publication number
CN110466304B
CN110466304B CN201910902765.7A CN201910902765A CN110466304B CN 110466304 B CN110466304 B CN 110466304B CN 201910902765 A CN201910902765 A CN 201910902765A CN 110466304 B CN110466304 B CN 110466304B
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China
Prior art keywords
torsion bar
suspension
fixedly connected
groove
adjustment device
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CN201910902765.7A
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CN110466304A (en
Inventor
李宁
王新郧
张熙隆
李学斌
王辉
石先蓉
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Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute
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Special Vehicle Technology Center of Hubei Aerospace Technology Research Institute
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/02Spring characteristics, e.g. mechanical springs and mechanical adjusting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00Indexing codes relating to the regulated action or device
    • B60G2500/30Height or ground clearance

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a suspension adjusting device, a single torsion bar suspension and a double torsion bar suspension, and belongs to the technical field of heavy vehicle suspensions. The suspension adjustment device includes: the torsion bar bracket is fixedly connected with one side of the frame longitudinal beam, and the fixed end of the driving mechanism is fixedly arranged on the other side of the frame longitudinal beam; the thrust rod is in threaded connection with the torsion bar bracket and provided with a spline hole; the spline shaft is fixedly connected with the action end of the driving mechanism and is arranged in the spline hole; the guide block is sleeved on the thrust rod; the connecting end of the torsion bar supporting arm is fixedly arranged on the torsion bar spring, and the rotating end of the torsion bar supporting arm is rotatably arranged in the guide groove; the torsion bar spring is rotatably arranged on the torsion bar bracket, and the axis of the torsion bar spring is perpendicular to the axis of the thrust rod. The suspension adjusting device, the single torsion bar suspension and the double torsion bar suspension can realize the electric control adjustment of the suspension height, and meet the running requirements of different road conditions such as expressways, off-road roads and the like.

Description

Suspension adjusting device, single torsion bar suspension and double torsion bar suspension
Technical Field
The invention relates to the technical field of heavy vehicle suspensions, in particular to a suspension adjusting device, a single torsion bar suspension and a double torsion bar suspension.
Background
The torsion bar suspension has the advantages of high reliability, maintenance-free performance, height adjustment and the like, and is widely applied to heavy vehicles. Aiming at the high-speed running working condition or railway transportation working condition of the heavy vehicle, the running safety can be improved by reducing the ground clearance of the automobile; aiming at the running condition of the off-road of the heavy vehicle, the ground clearance of the vehicle is increased, and the trafficability is improved.
However, currently, the torsion bar suspension height adjustment of heavy vehicles has not been automated, and this function of height adjustment is rarely applied in practice.
Disclosure of Invention
The invention provides a suspension adjusting device, a single torsion bar suspension and a double torsion bar suspension, which solve or partially solve the technical problem that the height adjustment of the torsion bar suspension of a heavy vehicle in the prior art is not automated, and the function of height adjustment is rarely applied in practice.
In order to solve the above technical problems, the present invention provides a suspension adjustment device fixedly disposed on a frame rail, the suspension adjustment device being connected with a torsion bar spring, the suspension adjustment device comprising: the device comprises a torsion bar bracket, a driving mechanism, a spline shaft, a guide block, a thrust rod and two torsion bar supporting arms; the torsion bar bracket is fixedly connected with one side of the frame longitudinal beam, and the fixed end of the driving mechanism is fixedly arranged on the other side of the frame longitudinal beam; the thrust rod is in threaded connection with the torsion bar bracket, and is provided with a spline hole; the spline shaft is fixedly connected with the action end of the driving mechanism, and is arranged in the spline hole; the guide block is sleeved on the thrust rod, and a guide groove is formed in the guide block; the connecting end of the torsion bar supporting arm is fixedly arranged on the torsion bar spring, and the rotating end of the torsion bar supporting arm is rotatably arranged in the guide groove; the torsion bar spring is rotatably arranged on the torsion bar bracket, and the axis of the torsion bar spring is perpendicular to the axis of the thrust rod.
Further, the torsion bar bracket includes: a connecting block and two support plates; one side of the connecting block is fixedly connected with the frame longitudinal beam; the two supporting plates are fixedly arranged on the other side of the connecting block, and the two supporting plates are opposite.
Further, the driving mechanism includes: a motor and a worm gear reducer; the fixed end of the motor is fixedly connected with the frame longitudinal beam; the worm gear reducer is fixedly arranged on the frame longitudinal beam, a worm of the worm gear reducer is fixedly connected with the motor, and a worm wheel of the worm gear reducer is fixedly connected with the spline shaft.
Further, the guide groove includes: a first groove and a second groove; the first slot communicates with the second slot; the second groove is a trapezoid groove, and the distance between the two inner side walls of the second groove is gradually increased towards the direction away from the first groove.
Further, the torsion bar support arm includes: a connecting rod and a rotating disc; the rotating disc is rotatably arranged in the guide groove; the first end of the connecting rod is fixedly connected with the rotating disc, and the second end of the connecting rod is fixedly connected with the torsion bar spring.
Further, the rotating disk and the guide groove form a plane high pair constraint.
Further, two limiting blocks are fixedly arranged on the thrust rod, and the guide block is arranged between the two limiting blocks.
Further, the suspension adjustment device further includes: a support cylinder; the supporting cylinder is rotatably arranged on the torsion bar bracket; the torsion bar supporting arm is fixedly connected with the outer wall of the supporting cylinder, and the torsion bar spring is fixedly arranged in the supporting cylinder.
The present invention provides a single torsion bar suspension employing one suspension adjustment device.
The present invention provides a dual torsion bar suspension employing two suspension adjustment devices.
One or more technical solutions provided in the embodiments of the present application at least have the following technical effects or advantages:
Because the fixed end of the driving mechanism is fixedly connected with one side of the frame longitudinal beam, the torsion bar bracket can bear the action force couple generated by the torsion bar spring and transmit the action force couple to the frame longitudinal beam, and the bearing capacity is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a suspension adjustment device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the torsion bar bracket of the suspension adjustment apparatus of FIG. 1;
FIG. 3 is a schematic view of the guide block of the suspension adjustment device of FIG. 1;
FIG. 4 is a schematic view of the thrust rod of the suspension adjustment device of FIG. 1;
FIG. 5 is a schematic view of the torsion bar support arm of the suspension adjustment apparatus of FIG. 1;
FIG. 6 is a schematic diagram of a single torsion bar suspension according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a middle double torsion bar suspension according to an embodiment of the present invention.
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, a suspension adjustment device is fixedly disposed on a frame rail 7, and the suspension adjustment device is connected to a torsion bar spring 8, and includes: torsion bar support 1, actuating mechanism 2, spline shaft 3, guide block 4, distance rod 5 and two torsion bar support arms 6.
The torsion bar bracket 1 is fixedly connected with one side of the frame longitudinal beam 7, and the fixed end of the driving mechanism 2 is fixedly arranged on the other side of the frame longitudinal beam 7.
The thrust rod 5 is in threaded connection with the torsion bar bracket 1, and the thrust rod 5 is provided with a spline hole.
The spline shaft 3 is fixedly connected with the action end of the driving mechanism 2, and the spline shaft 3 is arranged in the spline hole.
The guide block 4 is sleeved on the thrust rod 5, and the guide block 4 is provided with a guide groove 9.
The connecting end of the torsion bar supporting arm 6 is fixedly arranged on the torsion bar spring 8, and the rotating end of the torsion bar supporting arm 6 is rotatably arranged in the guide groove 9.
The torsion bar spring 8 is rotatably provided on the torsion bar bracket 1, and the axis of the torsion bar spring 8 is perpendicular to the axis of the thrust rod 5.
In the concrete implementation mode of the application, because the torsion bar bracket 1 is fixedly connected with one side of the frame longitudinal beam 7, the fixed end of the driving mechanism 2 is fixedly arranged on the other side of the frame longitudinal beam 7, the torsion bar bracket 1 can bear the action force couple generated by the torsion bar spring 8 and transmit the action force couple to the frame longitudinal beam 7 to ensure the bearing capacity, because the thrust bar 5 is in threaded connection with the torsion bar bracket 1, the thrust bar 5 is provided with a spline hole, the spline shaft 3 is fixedly connected with the action end of the driving mechanism 2, the spline shaft 3 is arranged in the spline hole, the driving mechanism 2 can drive the spline shaft 3 to rotate, the thrust bar 5 also axially acts while rotating on the torsion bar bracket 1 under the action of the driving torque of the spline shaft 3, and because the guide block 4 is sleeved on the thrust bar 5 and the guide groove 9 is arranged on the guide block 4, the guide block 4 can axially move along with the thrust rod 5, as the connecting end of the torsion bar supporting arm 6 is fixedly arranged on the torsion bar spring 8, the rotating end of the torsion bar supporting arm 6 is rotatably arranged in the guide groove 9, and the torsion bar spring 8 is rotatably arranged on the torsion bar bracket 1, the axis of the torsion bar spring 8 is vertical to the axis of the thrust rod 5, so that the guide block 4 can be prevented from rotating by the torsion bar supporting arm 6, the rotating end of the torsion bar supporting arm 6 is pushed by the guide block 4 to rotate in the guide groove 9, and then the connecting end of the torsion bar supporting arm 6 drives the torsion bar spring 8 to rotate, the height of the suspension is adjusted by adjusting the mounting angle of the fixed end of the torsion bar spring 8, the electric control of the height of the suspension is realized, the automation is realized, the application is easy, and the running requirements of different road conditions such as expressways and off-road are met.
Referring to fig. 2, specifically, the torsion bar bracket 1 includes: the connecting block 1-1 and two supporting plates 1-2.
One side of the connecting block 1-1 is fixedly connected with a frame rail 7. In this embodiment, one side of the connection block 1-1 may be fixedly connected to the frame rail 7 by welding, so as to ensure the connection reliability.
The two support plates 1-2 are fixedly arranged on the other side of the connecting block 1-1. In this embodiment, the two support plates 1-2 may be fixedly disposed on the other side of the connection block 1-1 by welding, so as to ensure the connection reliability. The two support plates 1-2 are opposite.
The two support plates 1-2 are used for supporting the torsion bar springs 8, bearing action couples generated by the torsion bar springs 8, transmitting the action couples to the frame longitudinal beam 7 through the connecting blocks 1-1, and guaranteeing bearing capacity.
Specifically, the driving mechanism 2 includes: the motor 2-1 and the worm gear reducer 2-2.
The fixed end of the motor 2-1 is fixedly connected with the frame rail 7. In the embodiment, the fixed end of the motor 2-1 can be fixedly connected with the frame longitudinal beam 7 through bolts, so that the disassembly, assembly and maintenance are convenient.
The worm gear reducer 2-2 is fixedly arranged on the frame longitudinal beam 7. In the embodiment, the worm gear reducer 2-2 can be fixedly arranged on the frame longitudinal beam 7, so that the assembly, disassembly and maintenance are convenient. The worm of the worm gear speed reducer 2-2 is fixedly connected with the motor 2-1, the worm wheel of the worm gear speed reducer 2-2 is fixedly connected with the spline shaft, and the torque of the motor 2-1 can be increased by using the worm gear speed reducer 2-2.
Referring to fig. 3, in particular, the guide groove 9 includes: first groove 9-1 and second groove 9-2.
The first groove 9-1 communicates with the second groove 9-2. The first slot 9-1 is a square slot for restraining the rotating end of the torsion bar support arm 6.
The second groove 9-2 is a trapezoid groove, and the distance between the two inner side walls of the second groove 9-2 gradually increases towards the direction away from the first groove 9-1, so that the connecting rod 6-1 has a certain degree of freedom, and the connecting rod 6-1 can swing.
Referring to fig. 5, specifically, the torsion bar support arm 6 includes: a connecting rod 6-1 and a rotating disc 6-2.
The rotating disc 6-2 is rotatably disposed in the guide groove 9. Namely: the rotating disc 6-2 is rotatably arranged in the first groove 9-1 of the guide groove 9, the rotating disc 6-2 and the first groove 9-1 of the guide groove form plane high pair constraint, point contact and line contact are formed between the rotating disc 6-2 and the first groove 9-1 of the guide groove, one constraint is provided, and the rotating disc 6-2 has two degrees of freedom.
The first end of the connecting rod 6-1 is fixedly connected with the rotating disc 6-2. In this embodiment, the first end of the connecting rod 6-1 may be fixedly connected to the rotating disc 6-2 by welding, so as to ensure the connection reliability. The second end of the connecting rod 6-1 is fixedly connected with the torsion bar spring 8. The first end of the connecting rod 6-1 is arranged in the second groove 9-2 of the guide groove 9, so that the connecting rod 6-1 has a certain swinging degree.
Wherein, two guide grooves 9 are arranged on the guide block, and the two guide grooves 9 are opposite.
The two torsion bar support arms 6 are in one-to-one correspondence with the two guide grooves 9, the connecting ends of the torsion bar support arms 6 are fixedly arranged on the torsion bar springs 8, and the rotating ends of the torsion bar support arms 6 are rotatably arranged in the corresponding guide grooves 9. The two torsion bar support arms 6 are respectively contacted with the two guide grooves 9 and transmit thrust, and simultaneously prevent the guide block 4 from rotating around the central axis of the thrust rod 5.
Referring to fig. 4, specifically, two stoppers 10 are fixedly provided on the thrust rod 5. In this embodiment, two limiting blocks 10 are fixedly arranged on the thrust rod 5 through welding, so that the limiting stability is ensured. The guide block 4 is arranged between the two limiting blocks 10, and the guide block 4 is limited by the two limiting blocks 10, so that the guide block 4 is prevented from sliding on the thrust rod 5.
Specifically, the suspension adjustment device further includes: the support cylinder 11.
The support cylinder 11 is rotatably provided on the torsion bar bracket 1. In the present embodiment, mounting holes are formed in the two support plates 1-2 of the torsion bar bracket 1, and the support cylinder is rotatably provided in the mounting holes.
The torsion bar supporting arm 6 is fixedly connected with the outer wall of the supporting cylinder 11. In the present embodiment, the torsion bar support arm 6 may be fixedly connected to the outer wall of the support cylinder 11 by welding, so as to ensure the connection reliability. The torsion bar spring 8 is fixedly arranged in the supporting cylinder 11. In the embodiment, the torsion bar spring 8 can be fixedly arranged in the supporting cylinder 11 through a spline, so that the disassembly is convenient.
Wherein, fixedly be provided with two spacing rings 19 on the support section of thick bamboo 11, one spacing ring setting of two spacing rings 19 is between two backup pads 1-2, and another spacing ring in two spacing rings 19 is fixed to be set up in the tip that support section of thick bamboo 11 kept away from torsion bar spring 8, and sets up in the outside of one backup pad in two backup pads 1-2, carries out spacingly to support section of thick bamboo 11 through two spacing rings 19, avoids support section of thick bamboo 11 to drop.
The invention also provides a single torsion bar suspension, the single torsion bar suspension adopts the suspension adjusting device, the specific structure of the suspension adjusting device refers to the embodiment, and the suspension adjusting device adopts all the technical schemes of all the embodiments, so that the suspension adjusting device at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
The invention also provides a double torsion bar suspension, the double torsion bar suspension adopts the suspension adjusting device, the specific structure of the suspension adjusting device refers to the embodiment, and the suspension adjusting device adopts all the technical schemes of all the embodiments, so that the double torsion bar suspension at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
In order to more clearly describe the embodiments of the present invention, the following description is made on the method of using the embodiments of the present invention.
The connecting block 1-1 of the torsion bar support 1 is connected with the frame rail 7 by bolts, can bear the action force couple generated by the torsion bar spring 8 and transmit the action force couple to the frame rail 7. The worm gear reducer 2-2 is connected with the frame longitudinal beam 7 through bolts, the worm is connected with the motor 2-1, and the worm wheel is fixedly connected with the spline shaft 3. The worm gear reducer 2-2 amplifies the driving torque of the motor 2-1 and drives the spline shaft 3 to rotate.
The thrust rod 5 is provided with a splined hole, is matched with the spline shaft 3, and the thrust rod 5 is connected with the connecting hole 1-1 of the torsion bar support through T-shaped threads, so that the thrust rod 5 is not influenced to move along the axial direction while driving moment is transmitted. The T-shaped thread is used for only rotating the thrust rod 5 without falling off the thrust rod 5. The guide block 4 is provided with a through hole, the through hole is sleeved on the thrust rod 5, and under the action of the driving torque of the spline shaft 3, the thrust rod 5 moves forwards while rotating, and a huge thrust force is generated.
The guide block is provided with a guide groove 9, the rotating disc 6-2 is rotatably arranged in a first groove 9-1 of the guide groove 9, the rotating disc 6-2 and the first groove 9-1 of the guide groove 9 form plane high pair constraint, point contact and line contact are formed between the rotating disc 6-2 and the first groove 9-1 of the guide groove, the constraint is formed, the rotating disc 6-2 has two degrees of freedom, a first end of the connecting rod 6-1 is fixedly connected with the rotating disc 6-2, and a first end of the connecting rod 6-1 is arranged in a second groove 9-2 of the guide groove 9, so that the connecting rod 6-1 has certain swinging automation.
The two support plates 1-2 of the torsion bar bracket 1 are provided with mounting holes, the support cylinder is rotatably arranged in the mounting holes, the torsion bar support arm 6 is fixedly connected with the outer wall of the support cylinder 11, and the torsion bar spring 8 can be fixedly arranged in the support cylinder 11 through a spline.
The guide block 4 pushes the rotating end of the torsion bar supporting arm 6 to rotate in the guide groove 9, and then the connecting end of the torsion bar supporting arm 6 drives the torsion bar spring 8 to rotate, and the height of the suspension is adjusted by adjusting the installation angle of the fixed end of the torsion bar spring 8, so that the electric control adjustment of the height of the suspension is realized, the automation is realized, the application is easy, and the running requirements of different road conditions such as expressways, off-road roads and the like are met. The torsion bar support arm 6 can convert the torsion moment born by the torsion bar spring 8 into an action couple, and finally transmits the action couple to the torsion bar support 1 through the guide block 4 and the thrust rod 5.
Under the drive of the motor 2-1, when the thrust rod 5 extends out, the suspension lifts; the motor 2-1 rotates reversely, the thrust rod 5 retracts, and the suspension is lowered.
Referring to fig. 6, when applied to a single torsion bar suspension, the single torsion bar suspension requires 1 set of suspension adjustment devices.
The front end of the lower torsion bar spring 12 of the single torsion bar suspension is connected with the lower suspension arm 14 of the single torsion bar suspension through a spline, and the fixed end of the lower torsion bar spring 12 of the single torsion bar suspension is connected with the sleeve 11 of the suspension adjusting device through a spline. Through the action of the motor 2-1 of the suspension adjusting device, the spline shaft 3 can be driven to rotate, under the action of the driving torque of the spline shaft 3, the thrust rod 5 rotates on the torsion bar support 1 and simultaneously axially moves, the guide block 4 can axially move along with the thrust rod 5, the torsion bar support arm 6 can avoid the rotation of the guide block 4, the guide block 4 pushes the rotating end of the torsion bar support arm 6 to rotate in the guide groove 9, the connecting end of the torsion bar support arm 6 drives the torsion bar spring 8 to rotate through the sleeve 11, and the initial installation angle of the fixed end of the lower torsion bar spring 12 of the single torsion bar suspension can be controlled. Since the suspension load remains unchanged, the torsion deformation of the lower torsion bar spring 12 of the single torsion bar suspension remains unchanged, and for this reason, the lower suspension arm 14 of the single torsion bar suspension and the lower suspension arm 13 of the single torsion bar suspension will swing cooperatively until stopping when the forces are balanced, and finally the suspension height adjustment is achieved.
When the motor 2-2 rotates positively and the thrust rod 5 stretches out, the suspension lifts; when the motor 2-2 rotates in the opposite direction, the thrust rod 5 retracts, and the suspension lowers.
Referring to fig. 7, when applied to a dual torsion bar suspension, the dual torsion bar suspension requires 2 sets of suspension adjustment devices.
The front end of the upper torsion bar spring 15 of the double torsion bar suspension is connected with the upper suspension arm 16 of the double torsion bar suspension through a spline, and the fixed end of the upper torsion bar spring 15 of the double torsion bar suspension is connected with the sleeve 11 of one suspension adjusting device through a spline. The front end of the lower torsion bar spring 17 of the double torsion bar suspension is connected with the lower suspension arm 18 of the double torsion bar suspension through a spline, and the fixed end of the lower torsion bar spring 17 of the double torsion bar suspension is connected with the sleeve 11 of the other suspension adjusting device through a spline. The two sets of suspension adjusting devices coordinate and control, and respectively adjust the initial installation angles of the upper torsion bar spring 15 of the double torsion bar suspension and the fixed end of the lower torsion bar spring 17 of the double torsion bar suspension according to the proportion relation. Since the suspension load is kept unchanged, the torsional deformation of the upper torsion bar spring 15 of the double torsion bar suspension and the lower torsion bar spring 17 of the double torsion bar suspension is kept unchanged, for this purpose the upper suspension arm 16 of the double torsion bar suspension and the lower suspension arm 18 of the double torsion bar suspension will swing cooperatively until stopping when the forces are balanced, and finally the suspension height adjustment is realized.
When the motor 2-2 rotates positively and the thrust rod 5 stretches out, the suspension lifts; when the motor 2-2 rotates in the opposite direction, the thrust rod 5 retracts, and the suspension lowers.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present invention.

Claims (8)

1. A suspension adjustment device fixedly disposed on a frame rail, the suspension adjustment device being connected to a torsion bar spring, the suspension adjustment device comprising: the device comprises a torsion bar bracket, a driving mechanism, a spline shaft, a guide block, a thrust rod and two torsion bar supporting arms;
the torsion bar bracket is fixedly connected with one side of the frame longitudinal beam, and the fixed end of the driving mechanism is fixedly arranged on the other side of the frame longitudinal beam;
the thrust rod is in threaded connection with the torsion bar bracket, and is provided with a spline hole;
the spline shaft is fixedly connected with the action end of the driving mechanism, and is arranged in the spline hole;
The guide block is sleeved on the thrust rod, and a guide groove is formed in the guide block;
the connecting end of the torsion bar supporting arm is fixedly arranged on the torsion bar spring, and the rotating end of the torsion bar supporting arm is rotatably arranged in the guide groove;
The torsion bar spring is rotatably arranged on the torsion bar bracket, and the axis of the torsion bar spring is perpendicular to the axis of the thrust rod;
two limiting blocks are fixedly arranged on the thrust rod, and the guide block is arranged between the two limiting blocks;
The suspension adjustment device further includes: a support cylinder;
the supporting cylinder is rotatably arranged on the torsion bar bracket;
The torsion bar supporting arm is fixedly connected with the outer wall of the supporting cylinder, and the torsion bar spring is fixedly arranged in the supporting cylinder.
2. The suspension adjustment device according to claim 1, characterized in that the torsion bar bracket includes: a connecting block and two support plates;
One side of the connecting block is fixedly connected with the frame longitudinal beam;
The two supporting plates are fixedly arranged on the other side of the connecting block, and the two supporting plates are opposite.
3. The suspension adjustment device according to claim 1, characterized in that the drive mechanism includes: a motor and a worm gear reducer;
the fixed end of the motor is fixedly connected with the frame longitudinal beam;
The worm gear reducer is fixedly arranged on the frame longitudinal beam, a worm of the worm gear reducer is fixedly connected with the motor, and a worm wheel of the worm gear reducer is fixedly connected with the spline shaft.
4. The suspension adjustment device according to claim 1, characterized in that the guide groove includes: a first groove and a second groove;
the first slot communicates with the second slot;
The second groove is a trapezoid groove, and the distance between the two inner side walls of the second groove is gradually increased towards the direction away from the first groove.
5. The suspension adjustment device according to claim 1, characterized in that the torsion bar support arm includes: a connecting rod and a rotating disc;
the rotating disc is rotatably arranged in the guide groove;
The first end of the connecting rod is fixedly connected with the rotating disc, and the second end of the connecting rod is fixedly connected with the torsion bar spring.
6. The suspension adjustment device according to claim 5, characterized in that:
the rotating disc and the guide groove form a plane high pair constraint.
7. A single torsion bar suspension employing a suspension adjustment device as claimed in any one of claims 1 to 6.
8. A dual torsion bar suspension employing two suspension adjustment devices according to any one of claims 1 to 6.
CN201910902765.7A 2019-09-24 2019-09-24 Suspension adjusting device, single torsion bar suspension and double torsion bar suspension Active CN110466304B (en)

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US4863148A (en) * 1987-10-27 1989-09-05 Hufnagel Douglas G Apparatus for adjustment of automobile torsion bar suspension assembly
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US6206391B1 (en) * 1999-12-17 2001-03-27 Daimlerchrysler Corporation Rear suspension using a torsional spring integral with trailing arm
FR2836094A1 (en) * 2002-02-20 2003-08-22 Delphi Tech Inc Vehicle anti-roll device comprises transverse torsion bar rotating in two supports fixed under suspension, each bar end having longitudinal arm connected at one end to wheel supports, one arm having adjustable bending stiffener
CN1522880A (en) * 2003-02-18 2004-08-25 �ղ��Զ�����ʽ���� Height regulating device for the suspension unit of a vehicle
CN2657960Y (en) * 2003-11-18 2004-11-24 中国三江航天工业集团公司 Double-arm, double-torsion-bar independent suspension device
DE102011016540A1 (en) * 2011-04-08 2012-10-11 Audi Ag Suspension arrangement for wheel suspensions of motor vehicles
CN103978863A (en) * 2014-04-22 2014-08-13 湖南易通汽车配件科技发展有限公司 Whole automobile attitude adjusting mechanism based on stepless adjusting and automobile chassis
CN204641312U (en) * 2015-01-26 2015-09-16 北京汽车研究总院有限公司 A kind of torsion bar spring mounting structure and automobile
CN106799945A (en) * 2015-11-26 2017-06-06 比亚迪股份有限公司 Suspension elevating adjusting device
JP3212025U (en) * 2017-06-05 2017-08-17 株式会社オートガレージプロアーム Vehicle height adjustment device
CN108146177A (en) * 2018-01-29 2018-06-12 北京汽车研究总院有限公司 A kind of torsion-bar spring adjustment arm assembly and automobile
CN208931061U (en) * 2018-10-31 2019-06-04 常州机电职业技术学院 A kind of electric car torsion-bar spring
CN210454383U (en) * 2019-09-24 2020-05-05 湖北航天技术研究院特种车辆技术中心 Suspension adjusting device, single torsion bar suspension and double torsion bar suspension

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