阅读说明：本技术 衬套径向扭转刚度测量装置 (Device for measuring radial torsional rigidity of bushing ) 是由 龚炫 于 2018-06-22 设计创作，主要内容包括：一种衬套径向扭转刚度测量装置,主要用于客车衬套径向扭转刚度测量。衬套外圆柱面由衬套夹紧工装夹紧,衬套夹紧工装与右法兰盘左侧连接在一起,右法兰盘右侧连接电机,电机上安装有角度传感器,电机输出轴外侧为轴承及安装支座,电机、轴承及安装支座均连接在箱型安装底座上；衬套夹紧工装与左法兰盘右侧连接在一起,左法兰盘的左侧连接扭矩传感器,扭矩传感器固定在固定支座上。本发明通过扭矩传感器可测量衬套力矩值,角度传感器可测量电机实际转动角度值,输出扭矩传感器和角度传感器测量得到的力矩值和角度值,即可得到衬套径向扭转刚度试验曲线,测量方便快捷,效率及可靠性高；测量装置刚度大,采用组合结构,易于加工制造,成本低。(A device for measuring the radial torsional rigidity of a bushing is mainly used for measuring the radial torsional rigidity of a passenger car bushing. The outer cylindrical surface of the bushing is clamped by a bushing clamping tool, the bushing clamping tool is connected with the left side of the right flange plate, the right side of the right flange plate is connected with a motor, an angle sensor is mounted on the motor, a bearing and a mounting support are arranged on the outer side of an output shaft of the motor, and the motor, the bearing and the mounting support are all connected to a box-type mounting base; the bushing clamping tool is connected with the right side of the left flange plate, the left side of the left flange plate is connected with the torque sensor, and the torque sensor is fixed on the fixed support. According to the invention, the torque value of the bushing can be measured by the torque sensor, the actual rotation angle value of the motor can be measured by the angle sensor, and the torque value and the angle value obtained by measurement of the torque sensor and the angle sensor are output, so that a radial torsional rigidity test curve of the bushing can be obtained, the measurement is convenient and fast, and the efficiency and the reliability are high; the measuring device has high rigidity, adopts a combined structure, is easy to process and manufacture and has low cost.)

1. A bushing radial torsional rigidity measuring device is characterized in that: the outer cylindrical surface of the bushing (405) is clamped by a bushing clamping tool (4), the bushing clamping tool (4) is connected with the left side of the right flange plate (5), the right side of the right flange plate (5) is connected with a motor (7), an angle sensor (8) is installed on the motor (7), a bearing and an installation support (6) are arranged on the outer side of an output shaft of the motor (7), and the motor (7), the bearing and the installation support (6) are all connected to a box-type installation base (9); the bush clamping tool (4) is connected with the right side of the left flange plate (3), the left side of the left flange plate (3) is connected with the torque sensor (2), and the torque sensor (2) is fixed on the fixed support (1).

2. The bushing radial torsional stiffness measurement device of claim 1, wherein: the outer cylindrical surface of the bushing (405) is clamped by an upper clamp shell (403) and a lower clamp shell (410) of a bushing clamping tool (4), an adjusting gasket (413) is arranged between the upper clamp shell (403) and the lower clamp shell (410), the upper clamp shell (403) and the lower clamp shell (410) are screwed through a stud (408) and two nuts II (409), and the stud (408) is connected with the right flange plate (5) and is prevented from loosening through the nuts II (409); two first ear parts (415) of the bushing (405) are connected with a U-shaped connecting block (402) through a T-shaped conversion support (404), and the U-shaped connecting block (402) is fixed with the right side of the left flange plate (3).

3. The bushing radial torsional stiffness measurement device of claim 1, wherein: the structure and the external dimension of the upper clamp shell (403) and the lower clamp shell (410) are the same, one side of the second ear part (414) adopts a threaded hole, and the other side adopts a unthreaded hole.

Technical Field

The invention relates to the technical field of automobile part testing, in particular to a device for measuring radial torsional rigidity of a liner for a passenger car.

Background

Bushings are commonly used rubber damping elements in passenger car suspension systems, and their stiffness includes axial linear stiffness, radial linear stiffness, and axial and radial torsional stiffness. The stiffness of each direction of the bushing is matched in a suspension system, and the steering stability and the smoothness of the whole vehicle are influenced. And often, the accurate value of the liner anisotropy stiffness is difficult to obtain through theoretical calculation, and the value of the liner anisotropy stiffness is often required to be measured by combining a test method. Generally, it is relatively easy to measure the linear stiffness value of the liner. However, the torsional stiffness value of a liner for a passenger car is not easily measured. Therefore, it is more and more important to research a radial torsional rigidity measuring device for a bushing for a passenger car.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a device for measuring the radial torsional rigidity of a bushing, so as to realize accurate measurement of the radial torsional rigidity of the bushing for a passenger car.

In order to achieve the purpose, the outer cylindrical surface of the bushing is clamped by a bushing clamping tool, the bushing clamping tool is connected with the left side of the right flange plate, the right side of the right flange plate is connected with a motor, an angle sensor is installed on the motor, a bearing and an installation support are arranged on the outer side of an output shaft of the motor, and the motor, the bearing and the installation support are all connected onto a box-type installation base; the bush clamping tool is connected with the right side of the left flange plate, the left side of the left flange plate is connected with the torque sensor, and the torque sensor is fixed on the fixed support.

The outer cylindrical surface of the bushing is clamped by an upper clamp shell and a lower clamp shell of the bushing clamping tool, an adjusting gasket is arranged between the upper clamp shell and the lower clamp shell, the upper clamp shell and the lower clamp shell are screwed through a stud and two nuts II, the stud is connected with the right flange plate, and the nut II is used for preventing looseness; two ears of the lining are connected with a U-shaped connecting block through a T-shaped conversion support, and the U-shaped connecting block is fixed with the right side of the left flange plate.

The structure and the overall dimension of the upper shell of the clamp and the lower shell of the clamp are the same, one side of the second ear part adopts a threaded hole, and the other side adopts a unthreaded hole.

Compared with the prior art, the torque sensor can measure the torque value of the bushing, the angle sensor at the motor side can measure the actual rotation angle value of the motor, and the torque value and the angle value measured by the torque sensor and the angle sensor are output, so that the radial torsional rigidity test curve of the bushing can be obtained, the measurement is convenient and fast, and the efficiency and the reliability are high. The measuring device has high self rigidity, adopts a combined structure, is easy to process and manufacture and has low cost.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the bushing clamping tool in fig. 1.

In the figure: 1. the device comprises a fixed support, 2, a torque sensor, 3, a left flange plate, 4, a bushing clamping tool, 400, a first long bolt, 401, a first short bolt, 402, a U-shaped connecting block, 403, an upper clamp shell, 404, a T-shaped conversion support, 405, a bushing, 406, a first nut, 407, a first bolt, 408, a stud, 409, a second nut, 410, a lower clamp shell, 411, a second bolt, 412, a third nut, 413, an adjusting gasket, 414, a second ear, 415, a first ear, 5, a right flange plate, 6, a bearing, an installation support, 7, a motor, 8, an angle sensor, 9, a box-shaped installation base, 10, a second short bolt, 11 and a second long bolt.

Detailed Description

As shown in fig. 1 and 2, an outer cylindrical surface of a bushing 405 is clamped by a bushing clamping tool 4, the bushing clamping tool 4 is connected with the left side of a right flange 5, the right side of the right flange 5 is connected with a motor 7, an angle sensor 8 is installed on the motor 7, a bearing and an installation support 6 are arranged on the outer side of an output shaft of the motor 7, and the motor 7, the bearing and the installation support 6 are all connected to a box-shaped installation base 9 and are fastened through a second short bolt 10; the bushing clamping tool 4 is connected with the right side of the left flange plate 3 through two long bolts (400) and two short bolts (401), the left side of the left flange plate 3 is connected with the torque sensor 2 through two long bolts (11), and the torque sensor 2 is fixed on the fixed support 1.

The outer cylindrical surface of the bushing 405 is clamped by an upper clamp shell 403 and a lower clamp shell 410 of the bushing clamping tool 4, an adjusting gasket 413 is arranged between the upper clamp shell 403 and the lower clamp shell 410, the upper clamp shell 403 and the lower clamp shell 410 are screwed through a stud 408 and two nuts 409, the stud 408 is connected with the right flange 5, and the nuts 409 are used for preventing looseness; two ear parts I415 of the bushing 405 are connected with the T-shaped conversion support 404 through a nut I406 and a bolt I407, the T-shaped conversion support 404 is fixed with the U-shaped connecting block 402 through a bolt II 411 and a nut III 412, the T-shaped conversion support 404 is reliable in structure, high in rigidity and reusable, the U-shaped connecting block 402 is fixed with the right side of the left flange plate 3, and the U-shaped connecting block 402 is simple in structure and easy to manufacture; the structure and the external dimension of the upper clamp shell 403 and the lower clamp shell 410 are the same, one side of the second ear 414 is provided with a threaded hole, and the other side is provided with a unthreaded hole, so that the convenience in installation is ensured.

When a radial torsional rigidity measurement test of the bushing 405 is carried out, the motor 7 rotates to drive the right flange plate 5 to rotate, and further drive the bushing 405 to rotate radially; meanwhile, the bushing 405 is fixed with the accessories of the T-shaped conversion support 404, the U-shaped connecting block 402, the left flange 3, the torque sensor 2 and the fixed support 1, so that the accessories can block the rotation of the bushing 405 to passively bear the torque, and the torque value can be measured by the torque sensor 2; the angle sensor 8 on the side of the motor 7 measures the actual rotation angle value of the motor 7, and the radial torsional rigidity test curve of the bushing 405 can be obtained by outputting the torque value and the angle value measured by the torque sensor 2 and the angle sensor 8.