Electric control disconnectable transverse stabilizer bar for off-road vehicle

Abstract

The utility model belongs to the field of automobile manufacturing, and relates to an electronic control disconnectable transverse stabilizer bar of an off-road vehicle. The transverse stabilizer bar comprises a shell, a power-off brake, a driving motor, a planetary roller lead screw, a multi-piece brake, a shaft sleeve, an end cover, a left torsion bar and a right torsion bar. By the adoption of the structure of the driving motor, the planetary roller lead screw and the multi-disc brake, no hydraulic oil exists, the leakage risk does not exist, maintenance is avoided in the service cycle, the structure is simple and reliable, the manufacturing cost is low, suspensions on the two sides can be compressed to the maximum stroke, and on the premise that controllability and comfort of a vehicle are guaranteed, the service life of the vehicle is prolonged. The cross-country road condition adaptive capacity and the escape capacity of the vehicle are improved, and the high maneuvering performance of the vehicle is achieved to the maximum extent.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing and relates to an electronically controllable disconnectable lateral stabilizer bar for off-road vehicles. Background Technology

[0002] The function of the stabilizer bar in an off-road vehicle is to elastically connect the left and right wheels. When the suspension on one side is compressed, the stabilizer bar applies an upward force to the suspension on the other side, inhibiting its downward movement and thus suppressing the roll angle, thereby improving the vehicle's handling stability and ride comfort.

[0003] The stabilizer bar of a regular off-road vehicle is usually a steel U-shaped bar that is bent as a whole, which can effectively improve the vehicle's handling stability and ride comfort. However, when used in military off-road vehicles, especially on roads with large undulations, the stabilizer bar connects the left and right suspensions, so it is difficult for both sides of the suspension to compress to their maximum travel, which has an adverse effect on the off-road vehicle's terrain adaptability and ability to get out of trouble.

[0004] The lateral stabilizer bar of the current military off-road vehicle is a steel U-shaped bar that is bent as a whole. The traditional lateral stabilizer bar cannot guarantee the vehicle's off-road performance while ensuring the vehicle's handling stability. Therefore, it has problems such as poor terrain adaptability and insufficient mobility, which affects the performance and combat effectiveness of the military off-road vehicle. Utility Model Content

[0005] The purpose of this invention is to provide a reliable and disconnectable lateral stabilizer bar for off-road vehicle movement systems. This invention adopts a structure of drive motor-planetary roller screw-multi-plate brake, which eliminates the risk of hydraulic oil leakage, requires no maintenance during its service life, and has a simple and reliable structure with low manufacturing cost. Both sides of the suspension can be compressed to their maximum travel, which can improve the vehicle's adaptability to different road conditions and its ability to get out of trouble while ensuring vehicle handling and comfort, and maximize the vehicle's high mobility performance.

[0006] This utility model is achieved using the following technical solution:

[0007] An electronically controllable disconnectable lateral stabilizer bar for off-road vehicles includes a housing (1), a power-off brake (2), a drive motor (3), a planetary roller screw (4), a multi-disc brake (5), a bushing (6), an end cap (7), a left torsion bar (8), and a right torsion bar (9).

[0008] Multiple axial grooves are evenly distributed on the inner wall of the right end of the housing (1), and multiple axial protrusions are also evenly distributed on the inner wall of the housing (1); the housing (1) and the left torsion bar (8) are connected by a spline, and the two can rotate together and are axially fixed by a snap ring; the power-off brake (2), drive motor (3), planetary roller screw (4), multi-plate brake (5) and bushing (6) are installed in the housing (1) from left to right; the power-off brake (2) is connected to the output shaft at the tail of the drive motor (3), and can brake the drive motor (3) when the power is off; the outer shells of the drive motor (3) and the planetary roller screw (4) are machined. The axial groove engages with the protruding teeth on the inner wall of the housing (1) when it is installed in the housing (1), which serves as an axial positioning function to prevent relative rotation. The output shaft at the front of the drive motor (3) is connected to the input shaft of the planetary roller screw (4). The nut of the planetary roller screw (4) acts as a pressure plate pressing on the outer tooth friction plate of the multi-plate brake (5). The protruding teeth of the outer tooth friction plate of the multi-plate brake (5) are embedded in the groove of the housing (1). The protruding teeth of the inner tooth friction plate are connected to the outer spline of the bushing (6). The inner spline of the bushing (6) is connected to the spline of the right torsion bar (9). Finally, the end cover (7) is installed for sealing.

[0009] Furthermore, the left torsion bar (8) and the right torsion bar (9) are directly connected to the left and right suspensions of the vehicle and fixed to the vehicle chassis with rubber sleeves (10). The left torsion bar (8) and the right torsion bar (9) can rotate relative to each other with respect to the rubber sleeves.

[0010] Furthermore, when the vehicle is on a non-off-road surface, the drive motor (3) drives the input shaft of the planetary roller screw (4) to rotate, thereby pushing the nut of the planetary roller screw (4) as a pressure plate to press the multi-plate brake (5), the power-off brake (2) cuts off the power and locks the output shaft of the drive motor (3), thereby connecting the left torsion bar (8), the housing (1), and the right torsion bar (9) into a whole, which is functionally consistent with the traditional integral lateral stabilizer bar, and can ensure the vehicle's handling stability and comfort.

[0011] Furthermore, when the vehicle is on a rough off-road surface, the power-off brake (2) is energized to release the brake, the drive motor (3) rotates in the opposite direction, and drives the nut of the planetary roller screw (4) back to its initial position. The multi-plate brake (5) is released. At this time, the right torsion bar (9) can rotate relative to the housing (1) and the left torsion bar (8). The left and right suspensions of the vehicle can be compressed to their maximum travel, thus providing good road adaptability and traction.

[0012] The beneficial effects of this utility model are:

[0013] This invention provides a reliable, disconnectable lateral stabilizer bar for off-road vehicle motion systems. The invention employs a drive motor-planetary roller screw-multi-disc brake configuration, eliminating the need for hydraulic oil and leakage risks. It requires no maintenance during its service life, and its simple, reliable structure and low manufacturing cost allow both suspension sides to compress to their maximum travel. This ensures vehicle handling and comfort while improving off-road adaptability and traction, maximizing the vehicle's high mobility. Attached Figure Description

[0014] Figure 1 This is an external view of the electrically controllable disconnectable lateral stabilizer bar for off-road vehicles according to this utility model;

[0015] Figure 2 , Figure 3 This is a structural diagram of the electrically controllable disconnectable lateral stabilizer bar for off-road vehicles according to this utility model;

[0016] Figure 4 This is an exploded view of the electrically controllable disconnectable lateral stabilizer bar for off-road vehicles according to this utility model;

[0017] Figure 5 This is a schematic diagram of the housing of the electrically controllable disconnectable lateral stabilizer bar for off-road vehicles according to this utility model. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] The present invention describes an electronically controlled disconnectable lateral stabilizer bar for off-road vehicles, which structurally includes a housing (1), a power-off brake (2), a drive motor (3), a planetary roller screw (4), a multi-plate brake (5), a bushing (6), an end cap (7), a left torsion bar (8), and a right torsion bar (9).

[0020] The present invention describes a vehicle electronically controllable disconnectable lateral stabilizer bar. Structurally, the housing (1) and the left torsion bar (8) are connected by a spline, and the two can rotate together and are axially fixed by a snap ring.

[0021] Multiple axial grooves are evenly distributed on the inner wall of the right end of the shell (1), and multiple axial protrusions are also evenly distributed on the inner wall of the shell (1);

[0022] Inside the housing (1), from left to right, are installed a power-off brake (2), a drive motor (3), a planetary roller screw (4), a multi-plate brake (5), and a bushing (6);

[0023] The power-off brake (2) is connected to the output shaft at the tail of the drive motor (3), and can brake the drive motor (3) when the power is off;

[0024] The drive motor (3) and the planetary roller screw (4) have axial grooves machined into their housings. When installed in the housing (1), these grooves engage with the protruding teeth on the inner wall of the housing to provide axial positioning and prevent relative rotation. The output shaft at the front of the drive motor (3) is connected to the input shaft of the planetary roller screw (4). The nut of the planetary roller screw (4) acts as a pressure plate, pressing against the outer tooth friction plate of the multi-plate brake (5). The protruding teeth of the outer tooth friction plate of the multi-plate brake (5) are embedded in the groove of the housing (1). The protruding teeth of the inner tooth friction plate are connected to the outer spline of the bushing (6). The inner spline of the bushing (6) is connected to the spline of the right torsion bar (9). Finally, the end cover (7) is installed for sealing. The left torsion bar (8) and the right torsion bar (9) are directly connected to the left and right suspensions of the vehicle and are fixed to the vehicle chassis with rubber sleeves (10). The torsion bars and rubber sleeves can rotate relative to each other.

[0025] When the vehicle is on a non-off-road surface, the drive motor (3) drives the input shaft of the planetary roller screw (4) to rotate, thereby pushing the nut of the planetary roller screw (4) as a pressure plate to press the multi-plate brake (5), the power-off brake (2) cuts off the power and locks the output shaft of the drive motor (3), thereby connecting the left torsion bar (8), the housing (1), and the right torsion bar (9) into a whole. Functionally, it is consistent with the traditional integral lateral stabilizer bar, which can ensure the vehicle's handling stability and comfort.

[0026] When the vehicle is on a rough off-road surface, the power-off brake (2) is energized to release the brake, the drive motor (3) rotates in the opposite direction, and drives the nut of the planetary roller screw (4) back to its initial position. The multi-plate brake (5) is released. At this time, the right torsion bar (9) can rotate relative to the housing (1) and the left torsion bar (8). The left and right suspensions of the vehicle can be compressed to their maximum travel, thus providing good road adaptability and traction.

[0027] This invention provides a reliable, disconnectable lateral stabilizer bar for off-road vehicle motion systems. The invention employs a drive motor-planetary roller screw-multi-disc brake configuration, eliminating the need for hydraulic oil and leakage risks. It requires no maintenance during its service life, and its simple, reliable structure and low manufacturing cost allow both suspension sides to compress to their maximum travel. This ensures vehicle handling and comfort while improving off-road adaptability and traction, maximizing the vehicle's high mobility.

Claims

1. An electronically controllable disconnectable lateral stabilizer bar for off-road vehicles, characterized in that, It includes a housing (1), a power-off brake (2), a drive motor (3), a planetary roller screw (4), a multi-plate brake (5), a bushing (6), an end cover (7), a left torsion bar (8), and a right torsion bar (9). Multiple axial grooves are evenly distributed on the inner wall of the right end of the housing (1), and multiple axial protrusions are also evenly distributed on the inner wall of the housing (1); the housing (1) is connected to the left torsion bar (8) by a spline, and the two can rotate together and are axially fixed by a snap ring; the power-off brake (2), drive motor (3), planetary roller screw (4), multi-plate brake (5) and bushing (6) are installed in the housing (1) from left to right; the power-off brake (2) is connected to the output shaft at the tail of the drive motor (3), and can brake the drive motor (3) when the power is off; the outer shells of the drive motor (3) and the planetary roller screw (4) are machined The axial groove engages with the protruding teeth on the inner wall of the housing (1) when it is installed in the housing (1), which serves as an axial positioning function to prevent relative rotation. The output shaft at the front of the drive motor (3) is connected to the input shaft of the planetary roller screw (4). The nut of the planetary roller screw (4) acts as a pressure plate and presses on the outer tooth friction plate of the multi-plate brake (5). The protruding teeth of the outer tooth friction plate of the multi-plate brake (5) are embedded in the groove of the housing (1). The protruding teeth of the inner tooth friction plate are connected to the outer spline of the bushing (6). The inner spline of the bushing (6) is connected to the spline of the right torsion bar (9). Finally, the end cover (7) is installed for sealing.

2. The electrically controllable disconnectable lateral stabilizer bar for off-road vehicles as described in claim 1, characterized in that, The left torsion bar (8) and the right torsion bar (9) are directly connected to the left and right suspensions of the vehicle and are fixed to the vehicle chassis with rubber sleeves (10). The left torsion bar (8) and the right torsion bar (9) can rotate relative to each other with respect to the rubber sleeves.

3. The electrically controllable disconnectable lateral stabilizer bar for off-road vehicles as described in claim 2, characterized in that, When the vehicle is on a non-off-road surface, the drive motor (3) drives the input shaft of the planetary roller screw (4) to rotate, thereby pushing the nut of the planetary roller screw (4) as a pressure plate to press the multi-plate brake (5), the power-off brake (2) cuts off the power and locks the output shaft of the drive motor (3), thereby connecting the left torsion bar (8), the housing (1), and the right torsion bar (9) into a whole. Functionally, it is consistent with the traditional integral lateral stabilizer bar, which can ensure the vehicle's handling stability and comfort.

4. The electrically controllable disconnectable lateral stabilizer bar for off-road vehicles as described in claim 2, characterized in that, When the vehicle is on a rough off-road surface, the power-off brake (2) is energized to release the brake, the drive motor (3) rotates in the opposite direction, and drives the nut of the planetary roller screw (4) back to its initial position. The multi-plate brake (5) is released. At this time, the right torsion bar (9) can rotate relative to the housing (1) and the left torsion bar (8). The left and right suspensions of the vehicle can be compressed to their maximum travel, thus having good road adaptability and traction.

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