CN210719649U

CN210719649U - Automobile plate spring endurance test device

Info

Publication number: CN210719649U
Application number: CN201921405592.XU
Authority: CN
Inventors: 何飞; 卢厚柱; 盛以成
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-09
Anticipated expiration: 2029-08-27

Abstract

The utility model is suitable for a test device technical field provides an automobile plate spring endurance test device, be in including portal frame, setting actuator on the portal frame, set up two sets of antifriction bearing at the leaf spring both ends respectively and set up two sets of elevating system of antifriction bearing below, the actuator pass through the piston rod with the leaf spring is connected, be equipped with displacement sensor on the actuator, be equipped with force sensor on the piston rod. The utility model discloses an actuator of setting on the portal frame provides power, and the leaf spring both ends of being connected with the actuator all freely compress and extend on elevating system through antifriction bearing for simulate the actual condition of leaf spring in the motion process, and then gather corresponding data through the force sensor on the displacement sensor on the actuator and the piston rod, can simulate the leaf spring actual condition and can freely adjust the height again, the test result is accurate.

Description

Automobile plate spring endurance test device

Technical Field

The utility model belongs to the technical field of test device, especially, relate to an automobile plate spring endurance test device.

Background

Automobile parts fatigue endurance tests are increasingly being valued. At present, although an automobile plate spring fatigue endurance test bed exists, a test device which can fully simulate the actual motion state of a plate spring and has high adjustable freedom degree is lacked. The conventional leaf spring endurance test apparatus has a structure as shown in fig. 2, in which one end of a leaf spring is pressed by a leaf spring pressing block, a vertical force is applied to the other end of the leaf spring by an external power source, and one end of the leaf spring is reciprocated by the external power source to switch between a free state and an operating state. The device can only simulate and test the mechanical durability of the plate spring, each swing of the plate spring is switched between a free state and a working state, and the device is different from an actual use working condition, and the mechanical attenuation of the test result of the device and the actual working condition has certain deviation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile plate spring endurance test device aims at overcoming the not enough that exists among the prior art.

The utility model discloses a realize like this, a car leaf spring endurance test device, be in including portal frame, setting actuator on the portal frame, set up two sets of antifriction bearing at the leaf spring both ends respectively and set up two sets of elevating system of antifriction bearing below, the actuator pass through the piston rod with the leaf spring is connected, be equipped with displacement sensor on the actuator, be equipped with force transducer on the piston rod.

The utility model discloses a further technical scheme is: the lifting mechanism comprises a base, a plurality of threaded rods arranged on the base and a lifting plate fixed on the threaded rods through nuts, and the rolling bearings are located on the lifting plate.

The utility model discloses a further technical scheme is: the piston rod is connected with the middle part of the plate spring through a clamping block.

The utility model discloses a further technical scheme is: the force sensor is sleeved at the bottom end of the piston rod and connected with the upper end of the clamping block.

The utility model has the advantages that: the utility model discloses an actuator of setting on the portal frame provides power, and the leaf spring both ends of being connected with the actuator all freely compress and extend on elevating system through antifriction bearing for simulate the actual condition of leaf spring in the motion process, and then gather corresponding data through the force sensor on the displacement sensor on the actuator and the piston rod, can simulate the leaf spring actual condition and can freely adjust the height again, the test result is accurate.

Drawings

Fig. 1 is a schematic structural diagram of an automobile plate spring endurance testing device provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a leaf spring endurance testing apparatus in the related art.

The names of the components in the figure are as follows:

1-a portal frame; 2-an actuator; 3-a plate spring; 4-rolling bearings; 5-a piston rod; 6-a displacement sensor; 7-a force sensor; 8-a base; 9-a threaded rod; 10-a nut; 11-a lifter plate; 12-clamping block.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1, the device for testing endurance of the automobile plate spring in this embodiment includes a portal frame 1, an actuator 2 disposed on the portal frame 1, two sets of rolling bearings 4 respectively disposed at two ends of the plate spring 3, and two sets of lifting mechanisms disposed below the two sets of rolling bearings 4, wherein the actuator 2 is connected to the plate spring 3 through a piston rod 5, the actuator 2 is provided with a displacement sensor 6, and the piston rod 5 is provided with a force sensor 7. The utility model discloses an actuator 2 of setting on portal frame 1 provides power, and 3 both ends of leaf spring that are connected with actuator 2 all freely compress and extend on elevating system through antifriction bearing 4 for simulate the actual state of leaf spring 3 in the motion process, and then gather corresponding data through displacement sensor 6 on the actuator 2 and force sensor 7 on the piston rod 5, can simulate leaf spring 3 actual state and can freely adjust the height again, and the test result is accurate.

In this embodiment, as shown in fig. 1, the lifting mechanism includes a base 8, a plurality of threaded rods 9 disposed on the base 8, and a lifting plate 11 fixed to the plurality of threaded rods 9 by nuts 10, and the rolling bearing 4 is disposed on the lifting plate 11. That is, in this embodiment, the number of the threaded rods is preferably four, and according to different tests of the plate spring 3, the two rolling bearings 4 can be respectively and freely dropped on the lifting plates 11 of the two lifting mechanisms on the same horizontal plane by adjusting the height of the lifting plate 11 and fixing the position of the lifting plate 11 by the nut 10.

In the present embodiment, as shown in fig. 1, the piston rod 5 is connected to the middle of the plate spring 3 through a clamping block 12; the force sensor 7 is sleeved at the bottom end of the piston rod 5 and is connected with the upper end of the clamping block 12. That is, the plate spring 3 is fixed by the clamp blocks 12, and the structure is stable.

In this embodiment, the hydraulic servo controller of the external device controls and fixes the piston rod 5 of the actuator 2 on the portal frame 1 to move, the plate spring 3 is fixed with the piston rod 5 through the clamping block 12, the rolling bearing 4 is connected with the two ends of the plate spring 3, the nut 10 on the threaded rod 9 is adjusted to enable the two rolling bearings 4 to freely fall on the lifting plate 11 and on the same horizontal plane, the piston rod 5 moves to drive the plate spring 3 to freely extend through the rolling bearing 4 on the lifting plate 11 according to a set loading mode, so that the state of the plate spring 3 in the actual loading motion is simulated, different loading modes are set according to test requirements, the performance test of the plate spring 3 can be realized, the fatigue endurance test of the plate spring can also be realized, and the structure is simple and the overall size is small.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automobile leaf spring endurance test device which characterized in that: including portal frame, setting be in actuator on the portal frame, set up respectively at two sets of antifriction bearing at leaf spring both ends and set up two sets of elevating system of antifriction bearing below, the actuator pass through the piston rod with the leaf spring is connected, be equipped with displacement sensor on the actuator, be equipped with force sensor on the piston rod.

2. The automobile leaf spring endurance testing apparatus of claim 1, in which the lifting mechanism includes a base, a plurality of threaded rods provided on the base, and a lifting plate fixed to the plurality of threaded rods by nuts, the rolling bearing being located on the lifting plate.

3. The automobile leaf spring endurance testing apparatus of claim 1, in which the piston rod is connected to a middle portion of the leaf spring through a clamp block.

4. The device for testing the durability of an automobile plate spring according to claim 3, wherein the force sensor is sleeved on the bottom end of the piston rod and connected with the upper end of the clamping block.