A skateboard chassis suspension adaptive adjustment device

Abstract

The application relates to a sliding plate chassis suspension adaptive adjusting device, and belongs to the technical field of vehicle chassis. The sliding plate chassis suspension adaptive adjusting device comprises a suspension mechanism, a limiting mechanism and a connecting unit. The suspension mechanism is used for transmitting the torque and force generated by a vehicle frame and a vehicle wheel. The limiting mechanism is used for limiting the upper vehicle body of different weights at an adaptive height. The connecting unit can synchronously limit the torque and force transmitted by the suspension mechanism. The application can quickly adaptively adjust the sliding plate chassis to the upper vehicle body of different weights, the same structure can be used to adjust the upper vehicle body of different weights to an adaptive attitude height, the working efficiency of the sliding plate chassis is improved, the safety of vehicle driving is improved, the complexity of the device is reduced, the technical threshold is avoided, and the design limitation of the suspension system of the sliding plate chassis to the upper vehicle body is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of vehicle chassis, in particular to a self-adaptive adjusting device for a skateboard chassis suspension. BACKGROUND

[0002] The skateboard chassis is a kind of new platform production mode in the intelligent vehicle era, which changes the traditional supply chain mode and the production mode of the whole vehicle, so that the skateboard chassis will reshape the chassis development and manufacturing process of future vehicles.

[0003] Prior art one:

[0004] The air spring between the vehicle body support and the axle base, the rotary air valve connected with the air spring through the pipeline, and the hydraulic cylinder used in cooperation with the rotary air valve and capable of inflating, maintaining and deflating the air spring are used to realize the static balance height maintenance of the vehicle body, stepless lifting and stepless lowering.

[0005] Or through the hub motor, steering knuckle, double wishbone, steering arm, shock absorber, rotation angle sensor, first connecting rod and second connecting rod, the high and low attitude is adjusted.

[0006] In prior art one, a large space in the height direction is occupied, and multiple control systems such as electricity, liquid and gas are involved, so the technical threshold is high, and the design of the skateboard chassis suspension system is limited to the upper body.

[0007] Prior art two:

[0008] The suspension adjusting device, single torsion bar suspension and double torsion bar suspension can realize electric control adjustment of the suspension height, and meet the requirements of driving on different road conditions such as expressway and off-road.

[0009] Prior art two involves electric control and hydraulic control systems, and the structure is complex, the failure risk is high, and it is not suitable for the difference and rapid switching of the upper body in the use scene of the skateboard chassis.

[0010] In summary, in the prior art, the skateboard chassis can flexibly switch different upper bodies, but cannot adjust the suspension high and low attitude according to different types and different rated weights of the upper body, so that the same chassis can realize appropriate ground clearance when matching different weight upper bodies, ensure driving safety, and the structure is complex. SUMMARY

[0011] The embodiment of the present application provides a sliding plate chassis suspension self-adaptive adjusting device to solve the problem that the existing sliding plate chassis is not convenient for adjusting the high-low posture of a vehicle body of different weights.

[0012] The present application provides a sliding plate chassis suspension self-adaptive adjusting device, which comprises

[0013] A suspension mechanism is used for transmitting torque and force generated by a vehicle frame and a vehicle wheel.

[0014] A limiting mechanism is used for limiting a vehicle body of different weights at an adaptive height.

[0015] A connecting unit is used for synchronously limiting the torque and force transmitted by the suspension mechanism.

[0016] In some embodiments, the suspension mechanism and the limiting mechanism are arranged on the vehicle frame.

[0017] In some embodiments, the suspension mechanism comprises a suspension upper swing arm, a suspension lower swing arm and a shock absorber arranged between the suspension upper swing arm and the suspension lower swing arm.

[0018] In some embodiments, the suspension upper swing arm is hinged to the vehicle frame through a first hinge shaft.

[0019] The suspension lower swing arm is hinged to the vehicle frame through a second hinge shaft.

[0020] In some embodiments, one end of the shock absorber is hingedly connected to the first hinge shaft of the suspension upper swing arm.

[0021] The other end of the shock absorber is hingedly connected to the suspension upper swing arm.

[0022] In some embodiments, the limiting mechanism comprises an upper fixed plate and a lower limiting plate.

[0023] The lower limiting plate is hingedly connected to the vehicle frame through a third hinge shaft.

[0024] In some embodiments, the upper fixed plate is provided with a positioning hole.

[0025] In some embodiments, the limiting mechanism further comprises

[0026] A limiting pin is arranged on the vehicle body and can pass through the positioning hole to contact the lower limiting plate.

[0027] In some embodiments, the connecting unit is a torsion bar spring.

[0028] In some embodiments, one end of the torsion bar spring is hingedly connected to the second hinge shaft, and the other end is hingedly connected to the third hinge shaft.

[0029] The embodiment of the application provides a sliding plate chassis suspension self-adapting adjusting device.

[0030] Under the action of the gravity of the vehicle, the vehicle frame has a sinking tendency, at this time, the vehicle wheel is supported on the ground, the wheel hub is relatively static, the side of the suspension swing arm away from the vehicle frame is relatively static, the side close to the vehicle frame has a sinking tendency, and the whole has a rotating tendency around the second hinge shaft in the suspension swing arm, at this time, the torque is loaded to the front end of the torsion bar spring, is transmitted to the tail end through the torsion bar spring, and the lower limiting plate has a rotating tendency.

[0031] Meanwhile, the lower limiting plate is limited to rotate by being abutted against the upper vehicle body limiting pin, and therefore the torsion of the torsion bar spring is balanced with the torque of the gravity of the vehicle acting on the hinge in the suspension swing arm, and the vehicle is in the empty load static balance state under the support of the suspension system.

[0032] When the vehicle body weight is heavy, longer limiting pins are assembled, the lower limiting plate is pressed lower due to the consistent fixed position of the upper vehicle body on the vehicle frame, the torsion of the torsion bar spring is larger under the condition that the position of the suspension swing arm remains unchanged, the heavier weight of the upper vehicle body is offset, the chassis ground clearance remains unchanged, and the heavier upper vehicle body is prevented from pressing the chassis lower to affect the appearance posture and passability of the vehicle.

[0033] When the vehicle body weight is light, shorter limiting pins are assembled, the working position of the lower limiting plate is lifted due to the consistent fixed position of the upper vehicle body on the vehicle frame, the torsion of the torsion bar spring is smaller under the condition that the position of the suspension swing arm remains unchanged, the weight of the lighter upper vehicle body is balanced, the chassis ground clearance remains unchanged, and the lighter upper vehicle body is prevented from lifting the chassis higher to affect the appearance posture and driving performance of the vehicle.

[0034] The sliding plate chassis can quickly adapt to the upper vehicle body of different weights, the same structure can be used to adjust the upper vehicle body of different weights to an adaptive posture height, the working efficiency of the sliding plate chassis is improved, the safety of vehicle driving is improved, the complexity of the device is reduced, the technical threshold is avoided to be high, the design of the suspension system of the sliding plate chassis on the upper vehicle body is avoided to be limited, the cost and failure rate are lower, the device is more reliable in a high-strength use environment, and the switching response speed is faster. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor.

[0036] Figure 1 The structural schematic diagram provided for the embodiments of the present application;

[0037] Figure 2 The structural schematic diagram provided for the limiting mechanism in the present application;

[0038] Figure 3 The first connection schematic diagram of the upper car body and the chassis in the present application;

[0039] Figure 4 The limiting pin structural schematic diagram provided when the upper car body is moderately heavy in the present application;

[0040] Figure 5 The second connection schematic diagram of the upper car body and the chassis in the present application;

[0041] Figure 6 The limiting pin structural schematic diagram provided when the upper car body is relatively heavy in the present application;

[0042] Figure 7 The third connection schematic diagram of the upper car body and the chassis in the present application;

[0043] Figure 8 The limiting pin structural schematic diagram provided when the upper car body is relatively light in the present application.

[0044] 1, frame; 2, limiting pin; 3, first hinge shaft; 4, second hinge shaft; 5, third hinge shaft; 6, upper fixed plate; 7, positioning hole; 11, upper swing arm of suspension; 12, shock absorber; 13, lower swing arm of suspension; 14, torsion bar spring; 15, lower limiting plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0046] The embodiments of the present application provide a sliding plate chassis suspension self-adaptive adjusting device, which can solve the problem that the existing suspension is not convenient for adjusting the high-low posture of different upper car bodies.

[0047] Referring to Figure 1 As shown in the drawings, the embodiment of the present application provides a sliding plate chassis suspension self-adaptive adjusting device, which comprises

[0048] a suspension mechanism, a limiting mechanism and a connecting unit.

[0049] The suspension mechanism is used for transmitting the torque and force generated by the vehicle frame 1 and the wheels. When the vehicle is under the action of gravity, the vehicle frame 1 has a tendency to sink, at this time, the wheels are supported on the ground, and the wheel hub is relatively stationary. Therefore, the torque and force generated by the weight of the vehicle body sink through the suspension mechanism and are transmitted to the limiting mechanism through the connecting unit.

[0050] The limiting mechanism is used for limiting the height of the upper vehicle body of different weights. The weights of different upper vehicle bodies are also different. When the suspension mechanism sinks, the height of the vehicle body is limited by the limiting mechanism to avoid the sinking without a lower limit, which leads to the low posture of the vehicle body and makes the vehicle body posture in an unsafe range.

[0051] The connecting unit can synchronize the limiting of the torque and force transmitted by the suspension mechanism to the limiting mechanism, so as to avoid the inability of the limiting mechanism to synchronize the limiting of the torque and force transmitted by the suspension mechanism, which leads to the transmission of the torque and force without a lower limit by the suspension mechanism, resulting in the low posture of the vehicle body.

[0052] In the embodiment, the suspension mechanism and the limiting mechanism are both arranged on the vehicle frame 1, and the suspension mechanism and the limiting mechanism are respectively arranged at two ends of the vehicle frame 1 and are opposite to each other with a space. The connecting unit is arranged between the suspension mechanism and the limiting mechanism for connection.

[0053] In some optional embodiments, referring to Figures 1-2 As shown in the drawings, the suspension mechanism comprises a suspension upper swing arm 11, a suspension lower swing arm 13 and a shock absorber 12 arranged between the suspension upper swing arm 11 and the suspension lower swing arm 13.

[0054] Under the action of the gravity of the vehicle, the vehicle frame 1 has a tendency to sink, at this time, the wheels are supported on the ground, and the wheel hub is relatively stationary. The suspension lower swing arm 13 rotates by the action of the weight of the vehicle body, and the rotation direction is towards the vehicle frame 1. The second hinge shaft 4 is coaxially hinged with the torsion bar spring 14. At this time, the torque is loaded and transmitted to the torsion bar spring 14, which drives the torsion bar spring 14 to rotate synchronously, and then drives the third hinge shaft 5 at the other end to rotate synchronously, so that the limiting pin 2 limits it.

[0055] In this embodiment, the suspension upper swing arm 11 is hinged to the frame 1 through the first hinge shaft 3, the suspension upper swing arm 11 is triangular, and the first hinge ears are arranged on both sides of the bottom side, the frame 1 is fixed with two groups of first hinge assemblies, the first hinge assembly comprises two oppositely arranged first fixed plates, the first hinge ear is arranged between the two first fixed plates, and then the first hinge shaft 3 is penetrated for hinge connection.

[0056] The suspension lower swing arm 13 is hinged to the frame 1 through the second hinge shaft 4, the suspension lower swing arm 13 is also triangular, and the second hinge ears are arranged on both sides of the bottom side, the frame 1 is fixed with two groups of second hinge assemblies, the second hinge assembly comprises two oppositely arranged second fixed plates, the second hinge ear is arranged between the two second fixed plates, and then the second hinge shaft 4 is penetrated for hinge connection.

[0057] In this embodiment, one end of the shock absorber 12 is hingedly connected with the first hinge shaft 3 of the suspension upper swing arm 11, and the other end of the shock absorber 12 is hingedly connected with the suspension upper swing arm 1.

[0058] A notch is formed in the suspension upper swing arm 11, a fourth hinge shaft is arranged in the notch, and the shock absorber 12 is hingedly connected with the notch of the suspension upper swing arm 11 through the fourth hinge shaft, so that when the frame 1 drives the suspension lower swing arm 11 to rotate, the shock absorber 12 can rotate synchronously with the rotation of the suspension lower swing arm 11, the shock absorber 12 is prevented from being fixed in position and causing the suspension lower swing arm 11 to be unable to rotate, and the shock absorber 12 buffers the vibration during driving.

[0059] In some optional embodiments, as shown in Figures 1-8 The limiting mechanism comprises an upper fixed plate 6 and a lower limiting plate 15.

[0060] The lower limiting plate 15 is hingedly connected with the frame 1 through the third hinge shaft 5, the frame 1 is fixed with a third hinge assembly, the third hinge assembly comprises two oppositely arranged third fixed plates, the lower limiting plate 15 is arranged between the two third fixed plates and is hingedly connected through the third hinge shaft 5.

[0061] The torsion spring 14 is hingedly connected with the third hinge shaft 5 synchronously, so that the rotation of the suspension lower swing arm 13 drives the lower limiting plate 15 to rotate synchronously.

[0062] In this embodiment, the upper fixed plate 6 is provided with a positioning hole 7, the limiting pin 2 on the upper vehicle body can be inserted into the positioning hole 7 to be positioned and limited, the limiting pin 2 and the lower limiting plate 15 cannot be in contact, the limiting pin 2 cannot be moved randomly, the lower limiting plate 15 cannot be limited, and the effect of the device is lost.

[0063] In this embodiment, the limiting mechanism further comprises a limiting pin 2, when the lower vehicle body is assembled, the limiting pin 2 penetrates through the positioning hole 7 in the upper fixed plate 6 and then abuts against the lower limiting plate 15, so that the rotation of the torsion spring 14 is limited.

[0064] The limiting pin 2 can be produced with different lengths according to the weight of different vehicle bodies.

[0065] As shown in Figures 3-4 When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0066] The front end of the torsion bar spring 14 is connected with the second connecting shaft 4 through the spline structure and is relatively fixed. When the suspension lower swing arm 13 swings up and down, the front end of the torsion bar spring 14 rotates synchronously with the second connecting shaft 4.

[0067] The end of the torsion bar spring 14 is connected with the lower limiting plate 15 through the spline structure and is relatively fixed.

[0068] Under the action of the vehicle gravity, the chassis 1 has a sinking trend. At this time, the wheel hub is relatively static, and the side of the suspension lower swing arm 13 away from the chassis 1 is relatively static, and the side close to the chassis 1 has a sinking trend. The whole has a rotating trend around the second connecting shaft 4 in the suspension lower swing arm 13. At this time, the torque is loaded to the front end of the torsion bar spring 14, which is transmitted to the end of the torsion bar spring 14, so that the lower limiting plate 15 has a rotating trend.

[0069] At the same time, the lower limiting plate 15 is limited to rotate by abutting against the limiting pin 2 of the upper vehicle body. Therefore, the torsion of the torsion bar spring 14 balances the torque acting on the suspension lower swing arm 13, and the vehicle is in a static balance state under the support of the suspension system.

[0070] As shown in Figures 5-6 When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0071] The limiting pin 2 with a longer length is assembled when the limiting pin 2 with a longer length is assembled. Since the fixed position of the upper vehicle body on the chassis 1 is consistent, the longer limiting pin 2 will press the lower limiting plate 15 lower. In the case that the position of the suspension lower swing arm 13 remains unchanged, the torsion of the torsion bar spring 14 is larger, and the torsion generated is larger, which offsets the weight of the heavier upper vehicle body. In this way, the chassis ground clearance can be kept unchanged, and the heavier upper vehicle body can be prevented from pressing the chassis lower to affect the appearance posture and passability of the vehicle.

[0072] As shown in Figures 7-8As shown, when the vehicle body is light, the limiting pin 2 on the upper vehicle body B1 penetrates the positioning hole 7 on the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0073] The limiting pin 2 provided by the present application has a shorter length during assembly. Since the fixed position of the upper vehicle body on the chassis frame is consistent, the shorter limiting pin 2 will raise the working position of the lower limiting plate 15. In the case that the position of the suspension swing arm 13 remains unchanged, the self-transformation of the torsion bar spring 14 will be smaller, and the generated torsion will be smaller. The weight of the lighter upper vehicle body is balanced, so that the chassis ground clearance remains unchanged, and the lighter upper vehicle body will not lift the chassis higher to affect the appearance and driving performance of the vehicle.

[0074] In some optional embodiments, referring to Figure 1 As shown, the connecting unit is a torsion bar spring 14. The torsion bar spring 14 transmits the torque generated by the suspension swing arm 13 to the lower limiting plate 15, so that the lower limiting plate 15 rotates synchronously with the suspension swing arm 13. Then, the lower limiting plate 15 limits the rotation of the torsion bar spring 15 by abutting against the limiting pin 2, so that the self-transformation of the torsion bar spring 14 generates a torsion, which balances the torque acting on the suspension swing arm 13 from the weight of the vehicle, so that the vehicle is in a suitable posture under the support of the suspension system.

[0075] In the present embodiment, one end of the torsion bar spring 14 is connected to the second hinge shaft 4, and the other end is connected to the third hinge shaft 5.

[0076] The torsion bar spring 14 is connected to the second hinge shaft 4 on the suspension swing arm 13. The end of the torsion bar spring 14 on the suspension swing arm 13 is the front end, which is connected to the second hinge shaft 4 on the suspension swing arm 13 through a spline structure and is fixed relative to the second hinge shaft 4. When the suspension swing arm 13 swings up and down, the front end of the torsion bar spring 14 rotates synchronously with the second hinge shaft 4 on the suspension swing arm 13.

[0077] The torsion bar spring 14 is connected to the third hinge shaft 5 on the lower limiting plate 6. The end of the torsion bar spring 14 on the lower limiting plate 6 is the rear end, which is connected to the third hinge shaft 5 through a spline structure.

[0078] The sliding plate chassis can quickly adapt to the upper vehicle body of different weights, and the same structure can be used to adjust the upper vehicle body of different weights to a suitable posture height, thereby improving the working efficiency of the sliding plate chassis, improving the safety of vehicle driving, reducing the complexity of the device, avoiding high technical threshold, and reducing the design limitation of the sliding plate chassis on the upper vehicle body. The cost and failure rate are lower, and the switching response speed is faster in high-strength use environment.

[0079] The working principle and process of the present application are as follows:

[0080] When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0081] The front end of the torsion bar spring 14 is connected with the second joint shaft 4 through the spline structure and is relatively fixed with the suspension lower swing arm 13. When the suspension lower swing arm 13 swings up and down, the front end of the torsion bar spring 14 rotates synchronously with the second joint shaft 4 inside the suspension lower swing arm 13.

[0082] The end of the torsion bar spring 14 is connected with the lower limiting plate 15 through the spline structure and is relatively fixed with the third joint shaft 5.

[0083] Under the action of the vehicle gravity, the chassis frame 1 has a sinking tendency. At this time, the wheels are supported on the ground, and the wheel center is relatively stationary. Therefore, the side of the suspension lower swing arm 13 away from the chassis frame 1 is relatively stationary, and the side close to the chassis frame 1 has a sinking tendency. The whole has a tendency to rotate around the second joint shaft 4 inside the suspension lower swing arm 13. At this time, the torque is loaded to the front end of the torsion bar spring 14, which is transmitted to the end of the torsion bar spring 14, so that the lower limiting plate 15 has a rotating tendency.

[0084] At the same time, the lower limiting plate 15 is limited from rotating by abutting against the limiting pin 2 on the upper vehicle body. Therefore, the torsion of the torsion bar spring 14 itself balances the torque acting on the joint inside the suspension lower swing arm 13, and the vehicle is in a static equilibrium state under the support of the suspension system.

[0085] When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0086] When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0087] When the vehicle body weight is moderate, the limiting pin 2 installed on the upper vehicle body penetrates through the positioning hole 7 on the corresponding position of the upper fixed plate 6 on the chassis frame 1, and contacts the torsion bar suspension system of the chassis.

[0088] The self-provided limiting pin 2 is assembled with a shorter limiting pin 2, and the fixed position of the upper vehicle body on the frame is consistent, so that the shorter limiting pin 2 will raise the working position of the lower limiting plate 15, and in the case that the position of the suspension swing arm 13 remains unchanged, the self-transformation of the torsion spring 14 is smaller, and the generated torsion is smaller, which can balance the weight of the lighter upper vehicle body, so that the chassis ground clearance can be kept unchanged, and the lighter upper vehicle body will not lift the chassis higher to affect the appearance posture and driving performance of the vehicle.

[0089] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0090] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0091] The above is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A skateboard chassis suspension adaptive adjustment device, characterized in that, The application relates to a self-adaptive adjusting device for a sliding plate chassis suspension, which comprises the following parts: a suspension mechanism for transmitting the torque and force generated by a chassis (1) and a wheel; a limiting mechanism for limiting the upper chassis body of different weights at a corresponding height to keep the chassis ground clearance unchanged; a connecting unit for synchronously limiting the limiting mechanism to the torque and force transmitted by the suspension mechanism; the suspension mechanism comprises a suspension upper swing arm (11), a suspension lower swing arm (13) and a shock absorber (12) arranged between the suspension upper swing arm (11) and the suspension lower swing arm (13); the suspension upper swing arm (11) is hinged to the chassis (1) through a first hinge shaft (3); the suspension lower swing arm (13) is hinged to the chassis (1) through a second hinge shaft (4); the limiting mechanism comprises an upper fixed plate (6) and a lower limiting plate (15); the lower limiting plate (15) is hinged to the chassis (1) through a third hinge shaft (5); a positioning hole (7) is formed in the upper fixed plate (6); the limiting mechanism further comprises a limiting pin (2) arranged on the upper chassis body and capable of contacting the lower limiting plate (15) through the positioning hole (7); the connecting unit is a torsion bar spring (14); one end of the torsion bar spring (14) is hingedly connected to the second hinge shaft (4), and the other end is hingedly connected to the third hinge shaft (5).

2. The self-adaptive adjusting device for a sliding plate chassis suspension according to claim 1, characterized in that: the suspension mechanism and the limiting mechanism are arranged on the chassis (1).

3. The self-adaptive adjusting device for a sliding plate chassis suspension according to claim 1, characterized in that: one end of the shock absorber (12) is hingedly connected to the first hinge shaft (3) of the suspension upper swing arm (11); the other end of the shock absorber (12) is hingedly connected to the suspension upper swing arm (11).

Images