Height adjusting system and method for X-shaped vehicle body

Abstract

The invention discloses an X-shaped vehicle body height adjusting system and method, and relates to the technical field of vehicle damping, the X-shaped vehicle body height adjusting system comprises a first running track and a second running track which are parallel to each other, and a first damper and a second damper which are arranged in an X shape are arranged between the first running track and the second running track; the first shock absorber and the second shock absorber are rotationally connected at the intersection; one end of the first shock absorber is matched with the first running track through a main sliding positioning mechanism, the other end of the first shock absorber is matched with the second running track through a slave sliding positioning mechanism, and the second shock absorber is matched with the first running track and the second running track through a slave sliding positioning mechanism; the main sliding positioning mechanism is used for driving the first shock absorber to move so that the first shock absorber and the second shock absorber can be adjusted in a stepless mode within the set included angle range. Stepless adjustment of the vehicle body within a certain range is achieved through the X-shaped damping structure, the height adjusting range is expanded, and the stability of the vehicle body can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle shock absorption, and in particular to an X-type vehicle body height adjustment system and method. Background Art

[0002] Vehicles are generally equipped with air spring shock absorbers, which use the flexible characteristics of the air cushion to buffer and absorb external vibrations and shocks, providing stable support; by controlling the changes in the air quality in the air spring, that is, controlling the pressure of the gas inside the spring, the vehicle's suspension height can be adjusted. Air spring shock absorbers may leak, which can easily reduce or fail the shock absorption effect; in addition, if the internal valve fails, the air source is problematic, or the connecting pipe leaks, the air pressure of the air spring shock absorber cannot be kept stable, causing the vehicle to vibrate or become unstable; air spring shock absorbers also have the problem of a limited vehicle height range. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide an X-type vehicle body height adjustment system and method, which can achieve stepless adjustment of the vehicle body within a certain range through an X-type shock absorbing structure, expand the height adjustment range, and ensure the stability of the vehicle body.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] In a first aspect, an embodiment of the present invention provides an X-type vehicle height adjustment system, comprising a first running track and a second running track parallel to each other, a first shock absorber and a second shock absorber arranged in an X shape are provided between the first running track and the second running track, and the first shock absorber and the second shock absorber are rotatably connected at the intersection;

[0006] One end of the first shock absorber cooperates with the first running track through a main sliding positioning mechanism, and the other end of the first shock absorber cooperates with the second running track, and the second shock absorber cooperates with the first running track and the second running track respectively through a slave sliding positioning mechanism; the main sliding positioning mechanism is used to drive the first shock absorber to move so that the first shock absorber and the second shock absorber can be infinitely adjusted within a set angle range.

[0007] As a further implementation, the main sliding positioning mechanism includes a main sliding body, and the first shock absorber is rotatably connected to the main sliding body;

[0008] A driving module is connected between the main sliding body and the first running track.

[0009] As a further implementation, the driving module includes a driving motor and a gear connected to the driving motor, and the inner surface of the first running track is provided with a toothed structure meshing with the gear.

[0010] As a further implementation, the slave sliding positioning mechanism includes a slave sliding body, and the first shock absorber and the second shock absorber are rotationally connected to the corresponding slave sliding body;

[0011] The slave sliding body is slidably connected to the first running track or the second running track, and a limiting mechanism is installed between the slave sliding body and the second running track.

[0012] As a further implementation, the limiting mechanism includes a positioning pin and a lifting assembly, the slave sliding body is provided with a limiting groove, and the lifting assembly is used to push the positioning pin to engage or disengage from the limiting groove.

[0013] As a further implementation, the jacking assembly includes a rotating motor and a camshaft mounted on the rotating motor;

[0014] A plurality of positioning pins are evenly arranged along the running direction of the sliding body. When the vertex of the cam shaft contacts any positioning pin, the positioning pin is engaged with the limiting groove.

[0015] As a further implementation, the angle between the first shock absorber and the second shock absorber ranges from 30° to 90°.

[0016] As a further implementation, the first running track and the second running track are provided with a first extreme position at one end and a second extreme position at the other end;

[0017] An intermediate fixed position is provided between the first extreme position and the second extreme position.

[0018] In a second aspect, an embodiment of the present invention further provides a vehicle body height adjustment method, based on the X-type vehicle body height adjustment system, to keep the vehicle body at any position between the lowest vehicle body state and the highest vehicle body state;

[0019] The highest vehicle body state adjustment process is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move toward the middle fixed position, and at the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move toward the middle fixed position; when the angle between the first shock absorber and the second shock absorber reaches the minimum angle of the set angle range, the vehicle body height reaches the highest state;

[0020] The lowest vehicle body state adjustment process is: the main sliding positioning mechanism drives one end of the first shock absorber to move away from the middle fixed position, and at the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move away from the middle fixed position; when the maximum angle between the first shock absorber and the second shock absorber is reached within the set angle range, the vehicle body height reaches the lowest state.

[0021] As a further implementation method, when the first shock absorber and the second shock absorber move to any position, the positioning pin and the limiting groove are engaged to achieve positioning; when the position of the first shock absorber and the second shock absorber is changed, the positioning pin is disengaged from the limiting groove.

[0022] The beneficial effects of the present invention are as follows:

[0023] (1) The vehicle body height adjustment system based on the X-type shock absorbing structure of the present invention can perform stepless adjustment within a set range, thereby expanding the vehicle body height adjustment range; and can ensure stable switching of the vehicle body height state. Compared with air spring shock absorbers, it can reduce the shaking and noise caused by inflation.

[0024] (2) The X-type shock absorbing structure of the present invention includes a first shock absorber and a second shock absorber which are rotatably connected at a cross position, wherein one end of the first shock absorber is connected to a main sliding positioning mechanism, and the other end of the first shock absorber and both ends of the second shock absorber are respectively connected to a slave sliding positioning mechanism, and the first shock absorber and the second shock absorber are synchronously moved under the cooperation of the main sliding positioning mechanism and the slave sliding positioning mechanism; by setting an intermediate fixed position and an end limit position on two mutually parallel running tracks, the movement range of the shock absorber is limited, so that the height of the vehicle body can be adjusted within a certain range, thereby ensuring the running stability.

[0025] (3) The sliding positioning mechanism of the present invention is provided with a limiting mechanism so that the height of the vehicle body can be stably maintained at the lowest position, the highest position or any position between the highest and lowest positions without changing due to vehicle bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0027] Figure 1 is a schematic structural diagram of an X-type vehicle height adjustment system according to one or more embodiments of the present invention;

[0028] Figure 2 is a schematic structural diagram of a main sliding positioning mechanism according to one or more embodiments of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a sliding positioning mechanism according to one or more embodiments of the present invention.

[0030] Among them, 1. the first running track, 2. the second running track, 3. the first extreme position A, 4. the second extreme position A, 5. the first extreme position B, 6. the second extreme position B, 7. the intermediate fixed position A, 8. the intermediate fixed position B, 9. the first shock absorber, 10. the second shock absorber, 11. the main sliding positioning mechanism, 12. the second slave sliding positioning mechanism, 13. the first slave sliding positioning mechanism, 14. the third slave sliding positioning mechanism, 15. the first movable shaft, 16. the second movable shaft, 17. the main sliding body, 18. the driving motor, 19. the gear, 20. the tooth structure, 21. the slave sliding body, 22. the roller, 23. the limit groove, 24. the positioning pin, 25. the rotating motor, 26. the camshaft, 27. the vertex. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] Embodiment 1:

[0033] This embodiment provides an X-type vehicle body height adjustment system, which adds a set of tracks to the vehicle body and chassis subframe, sets an X-type shock absorber structure between the tracks, and adjusts the vehicle body height by adjusting the X-type shock absorber structure.

[0034] Specifically, a first running track 1 is installed on the lower side of the vehicle body, and a second running track 2 is installed on the upper side of the chassis subframe, and the first running track 1 and the second running track 2 are parallel to each other; the X-type shock absorber structure is composed of a first shock absorber 9 and a second shock absorber 10 arranged crosswise. Figure 1 In the direction shown, the left end of the first running track 1 is the first extreme position A3, the right end of the first running track 1 is the second extreme position A4, and the middle of the first running track 1 is the middle fixed position A7; the left end of the second running track 2 is the first extreme position B5, the right end of the second running track 2 is the second extreme position B6, and the middle of the second running track 2 is the middle fixed position B8.

[0035] The first shock absorber 9 and the second shock absorber 10 can be infinitely adjusted within a set angle range. When the top ends of the first shock absorber 9 and the second shock absorber 10 are located on both sides of the middle fixed position A7 and the bottom ends of the first shock absorber 9 and the second shock absorber 10 are located on both sides of the middle fixed position B8, it is the minimum angle of the above-mentioned set angle range, and the vehicle body is in the highest position at this time; when the top end of the first shock absorber 9 is located at the first extreme position A3, the top end of the second shock absorber 10 is located at the second extreme position A4, the bottom end of the first shock absorber 9 is located at the second extreme position B6, and the bottom end of the second shock absorber 10 is located at the first extreme position B5, it is the maximum angle of the above-mentioned set angle range, and the vehicle body is in the lowest position at this time.

[0036] In this embodiment, the minimum angle of the first shock absorber 9 and the second shock absorber 10 is 30°, and the maximum angle is 90°, that is, the first shock absorber 9 and the second shock absorber 10 can be adjusted within the range of 30° to 90°.

[0037] like Figure 1 As shown, the top of the first shock absorber 9 cooperates with the first running track 1 through the main sliding positioning mechanism 11, and the bottom of the first shock absorber 9 cooperates with the second running track 2 through the first slave sliding positioning mechanism 13; the top of the second shock absorber 10 cooperates with the first running track 1 through the second slave sliding positioning mechanism 12, and the bottom of the second shock absorber 10 cooperates with the second running track 2 through the third slave sliding positioning mechanism 14. In addition, the first shock absorber 9 and the second shock absorber 10 are rotationally connected at the intersection, and while the main sliding positioning mechanism 11 drives the top of the first shock absorber 9 to move, the bottom of the first shock absorber 9 and the top and bottom of the second shock absorber 10 work together to achieve vehicle height adjustment.

[0038] In this embodiment, the middle intersection position of the first shock absorber 9 and the second shock absorber 10 is hinged by a rotating shaft, so that the X-shaped shock absorbing structure is expanded around the intersection center during the angle change process, thereby achieving positioning during the movement and avoiding displacement and deformation.

[0039] The main sliding positioning mechanism 11 is used as a driving end, which can make the top of the first shock absorber 9 move linearly along the first running track 1; the main sliding positioning mechanism 11 includes a main sliding body 17 and a driving module. The top of the first shock absorber 9 is rotatably connected to the main sliding body 17 through the first movable shaft 15, and the driving module is used to drive the main sliding body 17 to move along the first running track 1. Figure 2 As shown, the driving module of this embodiment includes a driving motor 18 and a gear 19. The gear 19 is installed on the motor shaft. In order to cooperate with the gear 19, the inner surface of the first running track 1 is provided with a tooth structure 20 adapted to the gear 19. The movement of the main sliding body 17 is realized under the meshing action of the tooth structure 20 and the gear 19.

[0040] The structures of the slave sliding positioning mechanisms are the same, and a slave sliding positioning mechanism connected to the bottom end of the first shock absorber 9 is taken as an example for detailed description:

[0041] like Figure 3 As shown, the slave sliding positioning mechanism includes a slave sliding body 21, and the first shock absorber 9 is rotatably connected to the slave sliding body 21 through the second movable shaft 16. The slave sliding body 21 is slidably connected to the second running track 2, and the sliding connection can be achieved by the movement of the rollers 22 along the second running track 2; in this embodiment, two groups of rollers 22 are arranged at the bottom of the slave sliding body 21, and the two groups of rollers 22 are arranged close to the edge of the slave sliding body 21.

[0042] A limit mechanism is installed between the sliding body 21 and the second running track 2, and the limit mechanism is provided between two sets of rollers 22. The limit mechanism can prevent the sliding body 21 from moving further after it moves to the corresponding position, so that the first shock absorber 9 and the second shock absorber 10 can be maintained at any angle within the set angle range, thereby realizing stepless adjustment. Figure 3 As shown, the limiting mechanism includes a positioning pin 24 and a lifting assembly. A limiting groove 23 is provided on the sliding body 21 . The lifting assembly is used to push the positioning pin 24 to engage with the limiting groove 23 or to disengage from the limiting groove 23 .

[0043] The limiting groove 23 is opened upward along the bottom surface of the slave sliding body 21 to a certain depth and has the same length as the slave sliding body 21 to ensure the limiting effect on the slave sliding body 21 .

[0044] In this embodiment, the lifting assembly includes a rotary motor 25, a camshaft 26 mounted on the rotary motor 25, and the camshaft 26 rotates under the driving action of the rotary motor 25; the positioning pin 24 is located on the upper side of the camshaft 26, and a plurality of positioning pins 24 are evenly distributed along the length direction of the second running track 2, the positioning pin 24 vertically passes through the second running track 2, and the bottom end of the positioning pin 24 contacts the camshaft 26, and the camshaft 26 pushes the positioning pin 24 to move up and down during the rotation of the motor shaft of the rotary motor 25. When the vertex 27 of the camshaft 26 rotates to the position corresponding to the limiting groove 23, that is, the highest position, the positioning pin 24 is completely inserted into the limiting groove 23, and the rotary motor 25 stops at this time, realizing the limiting effect on the slave sliding body 21. When the slave sliding body 21 needs to continue to move, the rotary motor 25 drives the camshaft 26 to rotate, so that the vertex 27 of the camshaft 26 drops until the positioning pin 24 is completely separated from the limiting groove 23, and the position locking is realized when the positioning pin 24 at the next position is inserted into the limiting groove 23.

[0045] It should be noted that the main sliding body 17 and the slave sliding body 21 in this embodiment are slidable components, such as sliding blocks.

[0046] In this embodiment, a limiting mechanism is provided so that the height of the vehicle body can be stably maintained at the lowest position, the highest position, or any position between the highest and lowest positions, and will not change due to vehicle bumps.

[0047] The vehicle height adjustment system of this embodiment is based on an X-type shock absorbing structure, which can perform stepless adjustment within a set range, thereby expanding the vehicle height adjustment range; and can ensure stable switching of the vehicle height state. Compared with air spring shock absorbers, it can reduce shaking and noise caused by inflation.

[0048] Embodiment 2:

[0049] This embodiment provides a vehicle body height adjustment method, which is based on the X-type vehicle body height adjustment system described in Example 1, so that the vehicle body is maintained at any position between the lowest vehicle body state and the highest vehicle body state; and the vehicle body height adjustment is controlled by the central control system.

[0050] The highest vehicle body state adjustment process is:

[0051] The central control system sends a signal to the driving motor 18 of the main sliding positioning mechanism 11. Under the action of the gear 19 and the toothed structure 20 of the first running track 1, the top of the first shock absorber 9 moves along the first running track 1 toward the middle fixed position A7 along the main sliding body 17; because the first shock absorber 9 and the second shock absorber 10 are rotationally connected (for example, hinged) at the intersection, the bottom of the first shock absorber 9 and the top and bottom of the second shock absorber 10 all move simultaneously. Among them, the top of the second shock absorber 10 moves toward the middle fixed position A7, and the bottom of the first shock absorber 9 and the bottom of the second shock absorber 10 move toward the middle fixed position B8; during the movement, the positioning pin 24 is in a state of being disengaged from the limiting groove 23.

[0052] When the distance between the top end (bottom end) of the first shock absorber 9 and the second shock absorber 10 is the shortest, that is, when the angle between the two reaches the minimum, the vehicle body reaches the highest position; the rotating motor 25 controls the positioning pin 24 to lift up and engage with the limiting groove 23 to achieve position locking.

[0053] The minimum vehicle body state adjustment process is:

[0054] The central control system sends a signal to the driving motor 18 of the main sliding positioning mechanism 11. Under the action of the gear 19 and the toothed structure 20 of the first running track 1, the top of the first shock absorber 9 moves along the first running track 1 toward the first limit position A3 along the main sliding body 17; at the same time, the top of the second shock absorber 10 moves toward the second limit position A4, the bottom of the first shock absorber 9 moves toward the second limit position B6, and the bottom of the second shock absorber 10 moves toward the first limit position B5. During the movement, the positioning pin 24 is in a state of being disengaged from the limiting groove 23.

[0055] When the top and bottom ends of the first shock absorber 9 and the second shock absorber 10 are farthest apart (moving to the corresponding extreme positions), that is, when the two reach the maximum angle, the vehicle body reaches the lowest position; the rotating motor 25 controls the positioning pin 24 to lift up and engage with the limit groove 23 to achieve position locking.

[0056] When the vehicle body height needs to be maintained between the lowest position and the highest position, it is only necessary to move the X-shaped shock absorbing structure to the corresponding position through the cooperation of the main sliding positioning mechanism 11 and the slave sliding positioning mechanism, and then limit it through the cooperation of the positioning pin 24 and the limiting groove 23.

[0057] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An X-type vehicle height adjustment system, characterized in that: It comprises a first running track and a second running track which are parallel to each other, a first shock absorber and a second shock absorber which are arranged in an X shape are arranged between the first running track and the second running track, and the first shock absorber and the second shock absorber are rotatably connected at the intersection; One end of the first shock absorber cooperates with the first running track through a main sliding positioning mechanism, and the other end of the first shock absorber cooperates with the second running track, and the second shock absorber cooperates with the first running track and the second running track respectively through a slave sliding positioning mechanism; the main sliding positioning mechanism is used to drive the first shock absorber to move so that the first shock absorber and the second shock absorber can be infinitely adjusted within a set angle range.

2. The X-type vehicle height adjustment system according to claim 1, characterized in that: The main sliding positioning mechanism comprises a main sliding body, and the first shock absorber is rotatably connected to the main sliding body; A driving module is connected between the main sliding body and the first running track.

3. The X-type vehicle height adjustment system according to claim 2, characterized in that: The driving module includes a driving motor and a gear connected to the driving motor, and the inner surface of the first running track is provided with a toothed structure meshing with the gear.

4. The X-type vehicle height adjustment system according to claim 1, characterized in that: The slave sliding positioning mechanism comprises a slave sliding body, and the first shock absorber and the second shock absorber are rotatably connected to the corresponding slave sliding body; The slave sliding body is slidably connected to the first running track or the second running track, and a limiting mechanism is installed between the slave sliding body and the second running track.

5. The X-type vehicle height adjustment system according to claim 4, characterized in that: The limiting mechanism comprises a positioning pin and a lifting assembly. The slave sliding body is provided with a limiting groove. The lifting assembly is used to push the positioning pin to engage with or disengage from the limiting groove.

6. The X-type vehicle height adjustment system according to claim 5, characterized in that: The lifting assembly includes a rotating motor and a camshaft mounted on the rotating motor; A plurality of positioning pins are evenly arranged along the running direction of the sliding body. When the vertex of the cam shaft contacts any positioning pin, the positioning pin is engaged with the limiting groove.

7. The X-type vehicle height adjustment system according to claim 1, characterized in that: The angle between the first shock absorber and the second shock absorber ranges from 30° to 90°.

8. An X-type vehicle height adjustment system according to claim 1 or 7, characterized in that: The first running track and the second running track have a first limit position at one end and a second limit position at the other end; An intermediate fixed position is provided between the first extreme position and the second extreme position.

9. A vehicle height adjustment method, characterized in that: Based on the X-type vehicle height adjustment system as claimed in any one of claims 1 to 8, the vehicle body is kept at any position between the lowest vehicle body state and the highest vehicle body state; The highest vehicle body state adjustment process is as follows: the main sliding positioning mechanism drives one end of the first shock absorber to move toward the middle fixed position, and at the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move toward the middle fixed position; when the angle between the first shock absorber and the second shock absorber reaches the minimum angle of the set angle range, the vehicle body height reaches the highest state; The lowest vehicle body state adjustment process is: the main sliding positioning mechanism drives one end of the first shock absorber to move away from the middle fixed position, and at the same time, the other end of the first shock absorber and both ends of the second shock absorber follow the sliding positioning mechanism to move away from the middle fixed position; when the maximum angle between the first shock absorber and the second shock absorber is reached within the set angle range, the vehicle body height reaches the lowest state.

10. A vehicle body height adjustment method according to claim 9, characterized in that: When the first shock absorber and the second shock absorber move to any position, the positioning pin and the limiting groove are engaged to achieve the limiting; when the position of the first shock absorber and the second shock absorber is changed, the positioning pin is separated from the limiting groove.

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