CN-224216050-U - Knuckle strength test deformation amount measuring device

CN224216050UCN 224216050 UCN224216050 UCN 224216050UCN-224216050-U

Abstract

The utility model belongs to the technical field of knuckle bench tests, and particularly relates to a knuckle strength test deformation amount measuring device which comprises a laser sensor assembly, a support plate, a base and a sliding plate, wherein the support plate is arranged on the base; the base comprises a vertical plate and a bottom plate, wherein the vertical plate is arranged on the bottom plate, a first strip hole is formed in the support plate, a second strip hole is formed in the vertical plate, the sliding plate comprises a second connecting plate and a third connecting plate, the second connecting plate is connected with the base, the third connecting plate is connected with the first strip hole in the support plate, and the second connecting plate is connected with the second strip hole in the vertical plate. According to the utility model, through a non-contact mode of measuring displacement by laser, the condition that the knuckle fracture damages the contact type displacement sensor in the test process is avoided, and various gaps and deformation of test fixtures, fasteners and test equipment on most load chains are eliminated, so that the displacement measurement result is maximally close to the displacement of the knuckle test load point.

Inventors

Hui Yilong
DONG HUAXIA
ZHOU QIAN
HAO BINBIN
Zhai long
SONG YINGYING
Sui Yangyang
CHEN DESHENG
YOU LICHUN
WANG HAO
MENG JINGXUAN

Assignees

中信戴卡股份有限公司
秦皇岛信立仓储服务有限公司

Dates

Publication Date: 20260508
Application Date: 20250812

Claims (7)

1. The device for measuring the deformation of the knuckle strength test is characterized by comprising a laser sensor assembly, a support plate, a base and a sliding plate; The base comprises a vertical plate and a bottom plate, wherein the vertical plate is arranged on the bottom plate, a first strip hole is formed in the support plate, a second strip hole is formed in the vertical plate, the sliding plate is formed by crossing a second connecting plate and a third connecting plate, the second connecting plate is connected with the base, the third connecting plate is connected with the first strip hole in the support plate, and the second connecting plate is connected with the second strip hole in the vertical plate.
2. The knuckle strength test deformation measurement device of claim 1, wherein the laser sensor assembly comprises a second fastener, a first protective housing, a laser sensor, a second protective housing, and a third fastener; The laser sensor both ends are provided with first protective housing and second protective housing respectively, the second fastener passes second protective housing, laser sensor and first protective housing in proper order, connects the third fastener.
3. A knuckle strength test deformation measurement device of claim 2, wherein shims are provided on both sides of the laser sensor, and the second fasteners pass through the shims on both sides of the laser sensor.
4. The knuckle strength test deformation measurement device of claim 2, wherein the laser sensor is provided with a signal emission window and a signal receiving window, and the first protective housing is provided with a corresponding second opening and first opening.
5. A knuckle strength test deformation measurement device of claim 2, wherein a third opening is provided in the respective locations of the first and second protective housings for a signal power cord of the laser sensor.
6. A knuckle strength test deformation measurement device of claim 2, wherein the wall thickness of the first and second protective shells is 2-3mm.
7. A knuckle strength test deformation measurement device of claim 1, further comprising a base plate that secures the knuckle strength test deformation measurement device by a quick clamp.

Description

Knuckle strength test deformation amount measuring device Technical Field The utility model belongs to the technical field of knuckle bench tests, and particularly relates to a knuckle strength test deformation amount measuring device. Background The automobile steering knuckle is one of the main parts in automobile suspension system, and is connected to the automobile connecting rods, bearings, hub and brake assembly to support the front and back load of automobile, support and drive the hub to rotate and realize flexible steering and normal running. The reliability of the knuckle directly affects the normal running of the automobile and the life safety of vehicle-mounted personnel, and particularly the knuckle is subjected to variable impact and fatigue load in the running state of the automobile, so that the knuckle has higher requirements on the strength, fatigue, rigidity and mechanical properties in all aspects. Therefore, during the product development period, one of the most important tasks is to verify whether the fatigue life and strength of the product can meet the requirements of various working conditions. Along with the acceleration of development speed of various vehicle types, the development period of the vehicle types is shortened, the development force of a knuckle bench test is continuously enhanced, the mechanical property of the knuckle is improved to meet the requirements of various road conditions, and the development of the automobile industry is urgent. Each host factory has developed a test bench that simulates an automotive suspension and two verification schemes that test for each single hole of the knuckle. Wherein about three-quarters of the tests performed for each single bore of the knuckle are strength tests. The single-hole strength test of the knuckle is generally divided into two-stage or multi-stage loads, wherein the first-stage load is required to measure the residual deformation of the knuckle, and the second-stage or multi-stage load directly meets the damage limit load required by a customer. Because of the first-order load of the strength test, the requirements of customers on the residual deformation are high, and the requirements are generally 0.2mm, 0.5mm and 1mm. The existing test equipment is used for a self-contained displacement sensor, and because the loading chain comprises a test clamp, a fastener and various gaps and deformation amounts of the test equipment, the residual deformation amount meeting the requirements of customers is difficult to measure after primary load, and misjudgment is easy to cause. Disclosure of utility model The utility model provides a knuckle strength test deformation amount measuring device which is used for solving the problem that the primary load residual deformation amount is difficult to measure in the knuckle strength test process in the prior art. In order to achieve the above purpose, the utility model proposes the following technical scheme: a knuckle strength test deformation amount measuring device comprises a laser sensor assembly, a support plate, a base and a sliding plate; The base comprises a vertical plate and a bottom plate, wherein the vertical plate is arranged on the bottom plate, a first strip hole is formed in the support plate, a second strip hole is formed in the vertical plate, the sliding plate is formed by crossing a second connecting plate and a third connecting plate, the second connecting plate is connected with the base, the third connecting plate is connected with the first strip hole in the support plate, and the second connecting plate is connected with the second strip hole in the vertical plate. Preferably, the laser sensor assembly comprises a second fastener, a first protective housing, a laser sensor, a second protective housing and a third fastener; The laser sensor both ends are provided with first protective housing and second protective housing respectively, the second fastener passes second protective housing, laser sensor and first protective housing in proper order, connects the third fastener. Preferably, gaskets are arranged on two sides of the laser sensor, and the second fastening piece penetrates through the gaskets on two sides of the laser sensor. Preferably, the laser sensor is provided with a signal transmitting window and a signal receiving window, and the first protective shell is provided with a corresponding second opening and first opening. Preferably, a third opening is formed in the corresponding position of the first protective shell and the second protective shell, and the third opening is used for passing through a signal power line of the laser sensor. Preferably, the wall thickness of the first protective shell and the second protective shell is 2-3mm. Preferably, the steering knuckle strength test deformation measuring device further comprises a bottom plate, wherein the bottom plate is used for fixing the steering knuckle strength test deformation measuring