Plate spring endurance experiment device

By designing a leaf spring endurance testing device with a support frame, fixing components, and drive components, the problem that existing equipment cannot test the service life of electric vehicle leaf springs has been solved. This enables universal testing of leaf springs of different specifications, improving testing efficiency and equipment utilization.

CN223637059UActive Publication Date: 2025-12-05JIANGSU ZONGSHEN VEHICLE IND CO LTD
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Patent Information

Application Number
CN202520243547.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-05
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing equipment cannot accurately and effectively detect the lifespan of electric vehicle leaf springs, and it lacks versatility, thus having significant limitations.

Method used

A leaf spring endurance testing device was designed, including a support frame, a fixing component, and a driving component. The leaf spring is compressed and deformed by a pressure plate driven by a cylinder. The device supports the testing of leaf springs of different specifications and uses sensors to read the pressure value and test time.

Benefits of technology

It enables universal testing of leaf springs of different specifications, reduces equipment investment and factory space, improves work efficiency, and can effectively test the endurance performance of leaf springs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plate spring endurance experiment device, which belongs to the technical field of plate spring detection and comprises a support frame for supporting and fixing, a support plate is mounted at the upper end of the support frame, a fixing component for fixing a plate spring is mounted on the upper wall of the support plate, and a connecting frame is further mounted on the upper wall of the support plate. A connecting plate is installed at the upper end of the connecting frame, a driving assembly used for providing driving force is installed on the upper wall of the connecting plate, and the driving assembly is arranged at the upper end of the fixing assembly; the device can be used for detecting plate springs of different specifications, and is high in universality; the investment of equipment and the space of a plant can be effectively reduced, and the working efficiency is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to leaf spring detection technical field especially relates to a leaf spring endurance experiment device. BACKGROUND

[0002] Electric car leaf spring is the important component in electric car, main function is support car body weight and absorb road vibration, ensure the driving stability and comfort of electric car, and the design and manufacturing quality of leaf spring directly influence the performance and service life of electric car, and the production process of leaf spring includes heat treatment, arch, quenching and multiple steps. Heat treatment process is used for hardening spring steel, improves its strength and ductility, and arch is used for adjusting the shape of spring, and quenching is to place the heat-bent leaf in oil bath and cool quickly to form martensite organization, further improve the hardness and wear resistance of spring, and the endurance of electric car leaf spring needs to be tested after production, to ensure the reliability and durability of electric car leaf spring in long-term use, and the existing equipment cannot detect the service life of leaf spring truly and effectively, and cannot achieve universality, and the limitation is large. SUMMARY

[0003] In view of the above, in order to overcome the defects of the prior art, the utility model provides a leaf spring endurance experiment device, which at least partially solves the above technical problems.

[0004] The utility model adopts the technical scheme as follows: a leaf spring endurance experiment device, including support frame for supporting and fixing, the support frame upper end is installed with support plate, the support plate upper wall is installed with the fixed component for leaf spring fixing, the support plate upper wall is also installed with connecting frame, the upper end of connecting frame is installed with connecting plate, the upper wall of connecting plate is installed with the drive assembly for providing driving force, the drive assembly is located at the upper end of fixed component.

[0005] Among them, the fixed component is equipped with two groups, respectively fixed component one and fixed component two, the fixed component one and fixed component two are placed symmetrically with support plate center line as the symmetry axis, the fixed component one and fixed component two are same in structure, and only one group is introduced here, the fixed component one includes the fixed plate and slide rail for supporting, the fixed plate and slide rail are all equipped on the upper wall of support plate, the fixed component one further includes leaf spring support seat, and one end of the leaf spring to be fixed is equipped on the leaf spring support seat.

[0006] Among them, the fixed plate side wall is installed with limit plate, the limit plate is equipped between slide rails, the leaf spring support seat is movably clamped in slide rail, and the lower end of leaf spring support seat is equipped at the lower end of limit plate, and the limit plate and slide rail limit the movement of leaf spring support seat.

[0007] The plate spring support seat comprises a plate spring seat, the lower end side wall of the plate spring seat is provided with a roller, the roller is movably clamped in a slide rail, the upper end side wall of the plate spring seat is respectively provided with a clamping plate one and a clamping plate two, the clamping plate one is provided with a through hole, the through hole is arranged through the clamping plate one, the clamping plate two is provided with a slot hole, and the inner side wall of the slot hole is provided with a magnetic piece one.

[0008] Further, a plug rod is movably arranged on the plate spring seat, the plug rod is movably arranged in the slot hole after passing through the through hole, one end of the plug rod arranged in the slot hole is provided with a magnetic piece two, the magnetic piece one and the magnetic piece two are magnetically different, and thus are convenient for fixing; when one end of the plate spring needs to be fixed, the plate spring is arranged in the plate spring seat, then the plug rod is arranged in the slot hole after passing through the through hole and the plate spring, and installation and fixing of the plate spring are realized.

[0009] The plug rod arranged on the fixed assembly one and the fixed assembly two is provided with a driving plate at one end arranged outside the plate spring seat, when the plug rod needs to be moved, the driving plate is held, the driving plate drives the plug rods at two ends to move, and synchronous fixing of the plate spring at two ends can be realized.

[0010] The driving assembly comprises a cylinder, the cylinder is arranged on the upper wall of the connecting plate, the output end of the cylinder is movably arranged through the connecting plate, the output end of the cylinder is provided with a plate spring pressing plate, and the plate spring pressing plate is arranged between the fixed assembly one and the fixed assembly two.

[0011] After the above structure is adopted, the beneficial effects of the plate spring endurance experiment device are as follows: the device can solve the detection of plate springs of different specifications, has strong universality, can effectively reduce the investment of equipment and the space of a factory building, greatly improves work efficiency, the cylinder pushes the plate spring pressing plate to press on the upper wall of the plate spring, when the cylinder drives the plate spring pressing plate to move downward, the plate spring pressing plate extrudes the plate spring, the plate spring is deformed, and the plate spring seats on two sides are pushed to move along the slide rail; when the cylinder moves upward, the plate spring deformation recovers, and drives the plate spring seats to move reversely again; the cylinder can control the compression and extension distance and frequency after being connected with a gas pipe and electrical devices, signals are transmitted to a panel through a sensor, and the pressure value, experimental time and number of times can be read. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings are used to provide a further understanding of the plate spring endurance experiment device, constitute a part of the specification, are used to explain the plate spring endurance experiment device together with the embodiments of the plate spring endurance experiment device, and do not constitute a limitation on the plate spring endurance experiment device.

[0013] Fig. 1 A structure schematic view of the plate spring endurance experiment device is provided.

[0014] Fig. 2 A perspective view of the plate spring endurance experiment device is provided.

[0015] Fig. 3The utility model provides a fixed component one's structure schematic view.

[0016] In the drawing: 1, support frame, 2, support plate, 3, connecting frame, 4, connecting plate, 5, fixed component one, 6, fixed component two, 7, fixed plate, 8, slide rail, 9, leaf spring support seat, 10, limit plate, 11, leaf spring seat, 12, gyro wheel, 13, clamping plate one, 14, clamping plate two, 15, through hole, 16, slot, 17, plug rod, 18, drive plate, 19, air cylinder, 20, leaf spring press plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the utility model.

[0018] It should be noted that, in this paper, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0019] As shown in Figs. 1-3 A leaf spring endurance test device, including support and fixed support frame 1, the upper end of support frame 1 is installed with support plate 2, the upper wall of support plate 2 is installed with fixed component for leaf spring, the upper wall of support plate 2 is also installed with connecting frame 3, the upper end of connecting frame 3 is installed with connecting plate 4, the upper wall of connecting plate 4 is installed with drive assembly for providing driving force, and the drive assembly is arranged at the upper end of fixed component.

[0020] The fixed component is provided with two groups, which are fixed component one 5 and fixed component two 6, the fixed component one 5 and the fixed component two 6 are symmetrically placed with the center line of the support plate 2 as the axis of symmetry, the fixed component one 5 and the fixed component two 6 are the same in structure, and only one group is introduced here, the fixed component one 5 includes fixed plate 7 and slide rail 8 for supporting, the fixed plate 7 and the slide rail 8 are both arranged on the upper wall of the support plate 2, the fixed component one 5 further includes leaf spring support seat 9, and one end of the fixed leaf spring is arranged on the leaf spring support seat 9.

[0021] The fixed plate 7 side wall is provided with a limiting plate 10, the limiting plate 10 is arranged between the slide rails 8, the leaf spring support seat 9 is movably connected and arranged in the slide rail 8, and the lower end of the leaf spring support seat 9 is arranged at the lower end of the limiting plate 10, and the limiting plate 10 and the slide rail 8 limit the movement of the leaf spring support seat 9.

[0022] The leaf spring support seat 9 comprises a leaf spring seat 11, the lower end side wall of the leaf spring seat 11 is provided with a roller 12, the roller 12 is movably connected and arranged in the slide rail 8, the upper end side wall of the leaf spring seat 11 is respectively provided with a clamping plate one 13 and a clamping plate two 14, the clamping plate one 13 is provided with a through hole 15, the through hole 15 is arranged through the clamping plate one 13, the clamping plate two 14 is provided with a slot hole 16, and the inner side wall of the slot hole 16 is provided with a magnetic piece one.

[0023] It should be noted that the leaf spring seat 11 movably installs a plug rod 17, the plug rod 17 is movably arranged through the through hole 15 and arranged in the slot hole 16, one end of the plug rod 17 arranged in the slot hole 16 is provided with a magnetic piece two, the magnetic piece one and the magnetic piece two are different in magnetic property, which is convenient for fixing; when one end of the leaf spring needs to be fixed, the leaf spring is arranged in the leaf spring seat 11, then the plug rod 17 is arranged in the slot hole 16 through the through hole 15 and the leaf spring in sequence, and the installation and fixation of the leaf spring are realized.

[0024] One end of the plug rod 17 arranged outside the leaf spring seat 11 of the fixed assembly one 5 and the fixed assembly two 6 is provided with a driving plate 18, when the plug rod 17 needs to be moved, the driving plate 18 is held, the driving plate 18 drives the plug rod 17 at both ends to move, and the synchronous fixation of both ends of the leaf spring can be realized.

[0025] The driving assembly comprises a cylinder 19, the cylinder 19 is arranged on the upper wall of the connecting plate 4, the output end of the cylinder 19 is movably arranged through the connecting plate 4, the output end of the cylinder 19 is provided with a leaf spring pressing plate 20, and the leaf spring pressing plate 20 is arranged between the fixed assembly one 5 and the fixed assembly two 6.

[0026] It should be noted that because the fixed assembly one 5 and the fixed assembly two 6 can move on the slide rail 8, different specifications of the leaf spring can be placed.

[0027] Specific use: the plate spring is placed on the fixed assembly one 5 and the fixed assembly two 6, hold the driving plate 18, the driving plate 18 drives the insertion rod 17 at both ends to move, the insertion rod 17 is sequentially penetrated through the through hole 15, the plate spring is arranged in the slot hole 16, the installation and fixation of the plate spring are realized;The cylinder 19 pushes the plate spring pressing plate 20 and presses on the upper wall of the plate spring, when the cylinder 19 drives the plate spring pressing plate 20 to move downwards, the plate spring pressing plate 20 extrudes the plate spring, the plate spring is deformed, and the plate spring seat 11 on both sides is moved along the slide rail 8;When the cylinder 19 moves upwards, the plate spring shape changes recover, and the plate spring seat 11 is reversely moved again;The cylinder 19 can control the compression and extension distance and frequency after being connected with the air pipe and the electrical device, the signal is transmitted to the panel through the sensor, and the pressure value, the experimental time and the number of times can be read.

[0028] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents. In general, if those skilled in the art are inspired, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A leaf spring endurance test device characterized by comprising: Including support frame for supporting and fixing, the support frame upper end is installed with support plate, the support plate upper wall is installed with fixed assembly for leaf spring fixing, the support plate upper wall is also installed with connecting frame, the connecting frame upper end is installed with connecting plate, the connecting plate upper wall is installed with drive assembly for providing driving force, the drive assembly is located in the upper end of the fixed assembly.

2. The device according to claim 1, wherein The fixed assembly is provided with two groups, fixed assembly one and fixed assembly two, the fixed assembly one and the fixed assembly two are symmetrically placed with the support plate center line as the axis of symmetry, the fixed assembly one and the fixed assembly two are the same structure, the fixed assembly one includes fixed plate and slide rail for supporting, the fixed plate and slide rail are both provided on the upper wall of the support plate, the fixed assembly one further includes leaf spring support seat.

3. The device of claim 2, wherein the device further comprises a plurality of weights. The side wall of the fixed plate is installed with a limit plate, the limit plate is located between the slide rails, the leaf spring support seat is movably connected in the slide rail, and the lower end of the leaf spring support seat is located at the lower end of the limit plate.

4. The device of claim 3, wherein the device further comprises a plurality of weights. The leaf spring support seat includes a leaf spring seat, the lower end side wall of the leaf spring seat is provided with a roller, the roller is movably connected in the slide rail, the upper end side wall of the leaf spring seat is respectively provided with a clamping plate one and a clamping plate two, the clamping plate one is provided with a through hole, the through hole penetrates the clamping plate one, the clamping plate two is provided with a slot hole, the slot hole is provided with a magnetic piece one on the inner side wall.

5. The device of claim 4, wherein the device further comprises a plurality of weights. The leaf spring seat is movably installed with a plug rod, the plug rod is movably penetrated through the through hole and located in the slot hole, one end of the plug rod located in the slot hole is provided with a magnetic piece two, the magnetic piece one and the magnetic piece two are magnetically different.

6. The device of claim 5, wherein the device further comprises a plurality of weights. The plug rod on the fixed assembly one and the fixed assembly two is installed with a driving plate at one end outside the leaf spring seat.

7. The device of claim 1, wherein the device further comprises a plurality of weights. The drive assembly includes a cylinder, the cylinder is provided on the upper wall of the connecting plate, the output end of the cylinder is movably penetrated through the connecting plate, the output end of the cylinder is installed with a leaf spring pressing plate, the leaf spring pressing plate is located between the fixed assembly one and the fixed assembly two.