Carriage chassis flexible connection support strength test equipment

Abstract

The utility model relates to the technical field of bracket strength testing, in particular to strength testing equipment for a flexible connecting bracket of a carriage chassis. According to the technical scheme, the device comprises a base, stand columns are symmetrically and fixedly installed on the two sides of the upper surface of the base, a top plate is fixedly connected to the tail ends of the stand columns, a penetrating opening is formed in the upper surface of the top plate, an I-shaped sliding block is slidably installed in the penetrating opening, and a detection hydraulic cylinder is fixedly installed on the upper surface of the I-shaped sliding block; a transverse plate is fixedly installed at the position, below the top plate, of the outer surface of the stand column, a lifting plate is slidably connected to the position, below the transverse plate, of the outer surface of the stand column in a sleeving mode, a pressure sensor B is fixedly installed on the upper surface of the lifting plate, a sliding rod is fixedly installed on the upper surface of the pressure sensor B, and a spiral spring is spirally wound around the outer surface of the sliding rod. According to the utility model, the load strength and the anti-deformation recovery strength of the flexible connecting bracket of the carriage chassis can be conveniently tested.

Description

TECHNICAL FIELD

[0001] The utility model relates to a support strength test technical field, concretely is a car chassis flexible connecting support strength test equipment. BACKGROUND

[0002] The flexible connecting support is connected between the car body and the chassis, which can improve the riding comfort, reduce the noise, improve the controllability and prolong the service life, and is widely used in various vehicle models, especially in electric vehicles, which can also provide installation support for the motor shell and protect the battery in the frontal collision.

[0003] At present, the flexible connecting support of the car chassis can only test the load strength in the strength test process, and the deformation recovery strength cannot be tested, therefore, the car chassis flexible connecting support strength test equipment is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a car chassis flexible connecting support strength test equipment has the advantages that the load strength and deformation recovery strength of the flexible connecting support of the car chassis can be tested conveniently, and the problem that the deformation recovery strength of the flexible connecting support of the car chassis cannot be tested in the strength test process at present is solved.

[0005] To achieve the above object, the utility model provides the following technical scheme: a car chassis flexible connecting support strength test equipment, including the base, the base upper surface both sides position place symmetry fixed installation has the stand, the stand end fixedly connected with the top plate, the top plate upper surface is provided with the through -going opening, the through -going opening inside sliding installation has the I -shaped sliding block, the I -shaped sliding block upper surface fixedly installed with detection hydraulic cylinder, the stand outer surface is located below the position of top plate Fixedly installed with the transverse plate, the stand outer surface is located below the position of transverse plate and is slidably sleeved with the lifting plate, the lifting plate upper surface fixedly installed with pressure sensor B, pressure sensor B upper surface fixedly installed with slide rod, the spiral spring is spirally wound on the outer surface of the slide rod, the transverse plate lower surface fixedly installed with pressure sensor A.

[0006] Preferably, the top plate upper surface one side fixedly installed with the cylinder, the cylinder output shaft end fixedly connected to the I -shaped sliding block outer surface, and the cylinder drives the I -shaped sliding block to move.

[0007] Preferably, the stand outer surface is provided with a scale line, and the position of the lifting plate can be observed through the scale line.

[0008] Preferably, a display screen and control switches are fixedly installed on the front surface of the base. Pressure sensor A and pressure sensor B are both electrically connected to the display screen to display the pressure value. There are three control switches, which are electrically connected to the cylinder, the detection hydraulic cylinder and the lifting hydraulic cylinder respectively, and control them.

[0009] Preferably, the upper surface of the base is provided with fixing holes near the four corners, and the base is fixed in the use position after the bolt passes through the fixing holes.

[0010] Preferably, a lifting hydraulic cylinder is fixedly installed inside the base, and a pin hole is provided on the outer surface of the column. After the lifting hydraulic cylinder works, its output shaft causes the lifting plate to rise. Then, the pin is inserted into the pin hole to fix the lifting plate. The output shaft of the lifting hydraulic cylinder is reset, and then the flexible connecting bracket of the chassis is fixed between the lifting plate and the base. Finally, the pin inside the pin hole is removed.

[0011] Preferably, the end of the output shaft of the detection hydraulic cylinder is rotatably connected to a roller, which changes the sliding friction to rolling friction when the output shaft of the detection hydraulic cylinder and the slide rod slide apart, thus facilitating the separation of the output shaft of the detection hydraulic cylinder and the slide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention, by incorporating a base, column, top plate, detection hydraulic cylinder, lifting plate, cross plate, slide rod, helical spring, pressure sensor A, and pressure sensor B, facilitates the testing of the load strength and deformation recovery strength of the flexible connecting bracket of the vehicle chassis. The flexible connecting bracket is fixed between the base and the lifting plate. After the detection hydraulic cylinder operates, its output shaft contacts the slide rod, forcing the slide rod to lower the lifting plate, which then acts on the flexible connecting bracket. The applied force is detected by pressure sensor B, thus determining the load strength of the flexible connecting bracket. When the sliding I-shaped slider separates the output shaft of the detection hydraulic cylinder from the slide rod, the flexible connecting bracket deforms and recovers, causing the lifting plate to rise. The helical spring then applies force to pressure sensor A. The deformation recovery strength of the flexible connecting bracket can be determined by the pressure value detected by pressure sensor A.

[0014] This invention achieves the effect of easily fixing the flexible connecting bracket between the base and the lifting plate by setting a pin hole and a lifting hydraulic cylinder. After the lifting hydraulic cylinder works, its output shaft causes the lifting plate to rise. Then, the pin is inserted into the pin hole to fix the lifting plate. The output shaft of the lifting hydraulic cylinder returns to its original position, and the flexible connecting bracket of the chassis is fixed between the lifting plate and the base. Finally, the pin inside the pin hole is removed.

[0015] By incorporating rollers, this invention transforms sliding friction into rolling friction when detecting the separation of the hydraulic cylinder output shaft and slide rod, thus facilitating the detection of this separation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial three-dimensional structural diagram of the hydraulic cylinder for testing according to this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 4 This is a partial main sectional view of the base of this utility model;

[0020] Figure 5 This is a side view of the structure of this utility model.

[0021] Reference numerals: 1. Through-hole; 2. Cylinder; 3. Detection hydraulic cylinder; 4. Top plate; 5. Column; 6. Horizontal plate; 7. Scale line; 8. Lifting plate; 9. Base; 10. Fixing hole; 11. Control switch; 12. Display screen; 13. I-shaped slider; 14. Roller; 15. Slide rod; 16. Pressure sensor A; 17. Helical spring; 18. Pressure sensor B; 19. Lifting hydraulic cylinder; 20. Pin hole. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0023] like Figures 1-5As shown, this utility model proposes a strength testing device for a flexible connection bracket of a vehicle chassis, including a base 9. Columns 5 are symmetrically fixedly installed on both sides of the upper surface of the base 9. A top plate 4 is fixedly connected to the end of each column 5. A through-hole 1 is provided on the upper surface of the top plate 4. An I-shaped slider 13 is slidably installed inside the through-hole 1. A cylinder 2 is fixedly installed on one side of the upper surface of the top plate 4. The output shaft of the cylinder 2 is fixedly connected to the outer surface of the I-shaped slider 13. A detection hydraulic cylinder 3 is fixedly installed on the upper surface of the I-shaped slider 13. The output shaft of the detection hydraulic cylinder 3 passes through the I-shaped slider 13. A horizontal plate 6 is fixedly installed on the outer surface of the column 5 below the top plate 4. A lifting plate 8 is slidably sleeved on the outer surface of the column 5 below the horizontal plate 6. Scale lines 7 are provided on the outer surface of the column 5 to facilitate observation of the position of the lifting plate 8. The upper surface of the lifting plate 8... A pressure sensor B18 is fixedly installed. A slide rod 15 is fixedly installed on the upper surface of the pressure sensor B18. The slide rod 15 passes through the horizontal plate 6, and its end is located above the horizontal plate 6. A helical spring 17 is spirally wound on the outer surface of the slide rod 15. A pressure sensor A16 is fixedly installed on the lower surface of the horizontal plate 6. The pressure sensor A16 is located above the helical spring 17. A lifting hydraulic cylinder 19 is fixedly installed inside the base 9. The output shaft of the lifting hydraulic cylinder 19 passes through the base 9. A pin hole 20 is provided on the outer surface of the column 5. A display screen 12 and a control switch 11 are fixedly installed on the front surface of the base 9. Both the pressure sensor A16 and the pressure sensor B18 are electrically connected to the display screen 12, which displays the pressure value. There are three control switches 11, which are electrically connected to the cylinder 2, the detection hydraulic cylinder 3, and the lifting hydraulic cylinder 19, respectively, and control them.

[0024] In use, after the lifting hydraulic cylinder 19 operates, its output shaft causes the lifting plate 8 to rise. Then, a pin is inserted into the pin hole 20 to fix the lifting plate 8. The output shaft of the lifting hydraulic cylinder 19 is reset, and the flexible connecting bracket of the chassis is fixed between the lifting plate 8 and the base 9. Finally, the pin inside the pin hole 20 is removed. After the detection hydraulic cylinder 3 operates, its output shaft contacts the slide rod 15, forcing the slide rod 15 to drive the lifting plate 8 down and act on the flexible connecting bracket. The applied force is detected by the pressure sensor B18, which can detect the load strength of the flexible connecting bracket. After the cylinder 2 drives the sliding I-shaped slider 13 to slide and causes the output shaft of the detection hydraulic cylinder 3 to separate from the slide rod 15, the flexible connecting bracket deforms and recovers, causing the lifting plate 8 to rise. The force is applied to the pressure sensor A16 through the helical spring 17. The deformation recovery strength of the flexible connecting bracket can be obtained by the pressure value detected by the pressure sensor A16. Example

[0025] like Figures 1-3As shown, the present invention proposes a vehicle chassis flexible connection bracket strength testing device. Compared with the first embodiment, this embodiment also includes a base 9 with fixing holes 10 at the four corners on the upper surface. Bolts pass through the fixing holes 10 to fix the base 9 in the use position. The output shaft of the detection hydraulic cylinder 3 is rotatably connected to a roller 14, which is located below the I-shaped slider 13.

[0026] In this embodiment, the roller 14 is configured to change from sliding friction to rolling friction when detecting the sliding separation of the output shaft of the hydraulic cylinder 3 and the slide rod 15, thus facilitating the detection of the separation of the output shaft of the hydraulic cylinder 3 and the slide rod 15.

[0027] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A vehicle chassis flexible connection bracket strength testing apparatus comprising a base (9) characterised in that: The base (9) upper surface both sides symmetrical fixed installation has the stand (5), the stand (5) tip fixed connection has the top plate (4), the top plate (4) upper surface is provided with the through -going port (1), the through -going port (1) inside sliding installation has the I -shaped sliding block (13), the I -shaped sliding block (13) upper surface fixed installation has the detection hydraulic cylinder (3), the stand (5) outer surface is located below the position of top plate (4) fixed installation has the crossbeam (6), the stand (5) outer surface is located below the position of crossbeam (6) sliding sleeve and has the lifting plate (8), the lifting plate (8) upper surface fixed installation has the pressure sensor B (18), the pressure sensor B (18) upper surface fixed installation has the slide bar (15), the slide bar (15) outer surface spiral winding has the spiral spring (17), the crossbeam (6) lower surface fixed installation has the pressure sensor A (16).

2. The strength testing apparatus for a flexible connection bracket of a vehicle chassis according to claim 1, characterized by: The top plate (4) upper surface one side fixed installation has the air cylinder (2), the air cylinder (2) output shaft tip fixed connection in the I -shaped sliding block (13) outer surface.

3. The strength testing apparatus for a flexible connection bracket of a vehicle chassis according to claim 1, characterized in that: The stand (5) outer surface is provided with scale line (7).

4. The strength testing apparatus for a flexible connection bracket of a vehicle chassis according to claim 1, characterized by: The base (9) front surface fixed installation has display screen (12) and control switch (11).

5. The flexible connection bracket strength testing apparatus for a vehicle bed chassis of claim 1, wherein: The base (9) upper surface near four corner positions are provided with fixed hole (10).

6. The strength testing apparatus for a flexible connection bracket of a vehicle chassis according to claim 1, characterized by: The base (9) inside fixed installation has the jacking hydraulic cylinder (19), the stand (5) outer surface is provided with pinhole (20).

7. The flexible connection bracket strength testing apparatus for a vehicle bed chassis of claim 1, wherein: The detection hydraulic cylinder (3) output shaft tip rotary connection has the gyro wheel (14).

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