U-shaped bolt pre-tightening force monitoring device
A bolt pre-tightening force and monitoring device technology, which is used to measure the direction of torque/torsion force during tightening, can solve the problems of structural changes of the fasteners, affecting the connection of the spring leaf, and the accuracy of the measurement results of the pressure sensor is not very high. Achieve the effects of easy installation, high accuracy and improved detection efficiency
Inactive Publication Date: 2021-06-18
DONGFENG LIUZHOU MOTOR
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Problems solved by technology
[0005] (1) Since the pressure sensor is installed on the surface of the fastener, the pressure sensor does not directly detect the pressure change of the U-shaped bolt, and the accuracy of the measurement result of the pressure sensor is not very high;
[0006] (2) The pressure sensor is arranged between adjacent spring sheets of the leaf spring, thereby affecting the connection between adjacent spring sheets;
[0007] (3) The installation of some pressure sensors requires avoidance holes or avoidance grooves on the fastened parts, so that the structure of the fastened parts changes
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[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "top", "bottom" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.
[0030] Such as figure 1 As shown in -3, the embodiment of the present invention provides a U-bolt pretighten...
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The invention relates to the technical field of automobile load monitoring and discloses a U-shaped bolt pre-tightening force monitoring device, a U-shaped bolt is used for fastening a steel plate spring and an axle together, the U-shaped bolt pre-tightening force monitoring device comprises a mounting seat, a pressure detection device and a signal processing device, the mounting seat is fixed on the U-shaped bolt, and the mounting seat is provided with a first mounting groove; the pressure detection device is arranged in the first mounting groove; and the signal processing device is connected with the pressure detection device. The invention provides the U-shaped bolt pre-tightening force monitoring device so as to achieve the purposes that the pre-tightening force measurement result is accurate, the measurement efficiency is high and the structure of a steel plate spring is not affected.
Description
technical field [0001] The invention relates to the technical field of automobile load monitoring, in particular to a U-shaped bolt pretightening force monitoring device. Background technique [0002] At present, the leaf springs of the commercial vehicle suspension are generally fixed by U-shaped bolts to the axle and the balance suspension support. If the U-shaped bolts are loose, it will cause the leaf spring to break, which will affect the reliability of the vehicle. sex and driving safety. [0003] It is understood that there are two ways of monitoring the pretightening force of the existing U-shaped bolts: manual monitoring and sensor monitoring. For the manual monitoring method, the maintenance personnel judge the pre-tightening force of the U-bolt through experience. Due to the manual monitoring has certain errors, if the pre-tightening force of the U-bolt after maintenance is too large or too small, it will affect the The service life of U-bolts. [0004] For the...
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IPC IPC(8): G01L5/24
CPCG01L5/24
Inventor 尹中保周志斌栗广生周文谷润民梁培钊覃宗斌
Owner DONGFENG LIUZHOU MOTOR