A test device for detecting the stiffness of a profiled plate spring

Abstract

The utility model relates to a test device for the stiffness detection of profiled plate spring, and relates to a test device. The utility model solves the problem that profiled plate springs with ears at both ends and opposite curling directions cannot complete tests due to the lack of corresponding tooling. The utility model satisfies the stiffness detection of profiled plate springs with opposite ear orientations, and can cope with the testing of plate springs of this type in various sizes under the premise of ensuring the accuracy of test results. Tests have shown that the utility model can efficiently and accurately perform spring stiffness tests on profiled plate springs with opposite ear orientations, and the utility model has simple components and is easy to operate, greatly shortens the testing period for such special springs, improves production efficiency, saves time costs for the company, and improves the accuracy of test results. The utility model belongs to the technical field of plate spring stiffness detection.

Description

Technical Field

[0001] This invention relates to a testing device, specifically a testing device for testing the stiffness of irregularly shaped leaf springs, belonging to the field of leaf spring stiffness testing technology. Background Technology

[0002] The stiffness test of a leaf spring requires selecting different tooling according to the drawing requirements. A certain model of leaf spring is an irregularly shaped leaf spring, such as... Figure 1 As shown: its spring body is straight, but the lugs at both ends face opposite directions, that is, one lug curls upward and the other lug curls downward; this type of leaf spring is used in the diaphragm steam seal, so that the lugs at both ends of the leaf spring respectively engage with the limiting slots of the steam seal block and the diaphragm groove, and the straight section of the spring body provides elastic preload.

[0003] According to its technical requirements, this type of leaf spring needs to undergo spring height and force value testing. However, due to the lack of corresponding tooling in the laboratory, it is impossible to complete the test for this special type of leaf spring.

[0004] In summary, how to propose a novel experimental device to address the aforementioned technical problems has become a pressing issue for those skilled in the art. Summary of the Invention

[0005] To address the shortcomings of the prior art, this invention provides a testing device for detecting the stiffness of irregularly shaped leaf springs.

[0006] The technical solution of the present invention is: a test device for testing the stiffness of irregularly shaped leaf springs, comprising a top block, a base, a stop block and two supports.

[0007] The base is mounted on the base of the mechanical testing machine, and the top block is mounted on the loading head of the mechanical testing machine, with the cutting edge of the top block perpendicular to the length direction of the base.

[0008] The stop block and two supports are installed on the base in sequence. Specifically, the stop block is arranged on the outside of one of the supports, and the two supports can be relatively close to or far apart.

[0009] Furthermore, the two supports are arranged symmetrically with respect to the top block.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This invention satisfies the stiffness testing of irregularly shaped leaf springs with opposite ear orientations, and can handle the testing of leaf springs of this model in various sizes while ensuring the accuracy of the experimental results.

[0012] Verification has shown that this invention can efficiently and accurately test the spring stiffness of irregularly shaped leaf springs with oppositely oriented lugs. Furthermore, the components of this invention are simple and easy to operate, greatly shortening the testing cycle for such special springs, improving production efficiency, saving the company time and costs, and also improving the accuracy of the test results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an irregularly shaped leaf spring;

[0014] Figure 2 This is the isometric drawing of the present invention.

[0015] Figure 3 This is a structural diagram of the base 200, the stop block 210, and the support 220;

[0016] In the diagram: 100, top block; 200, base; 210, stop block; 220, support. Detailed Implementation

[0017] To make the objectives, features, and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

[0018] Specific implementation method one: Combining Figures 1 to 3 This embodiment describes a test device for testing the stiffness of irregularly shaped leaf springs, which includes a top block 100, a base 200, a stop block 210, and two supports 220.

[0019] The base 200 is mounted on the base of the mechanical testing machine, and the top block 100 is mounted on the loading head of the mechanical testing machine, with the cutting edge of the top block 100 perpendicular to the length direction of the base 200.

[0020] The stop block 210 and two supports 220 are installed on the base 200 in sequence. Specifically, the stop block 210 is arranged outside one of the supports 220, forming a distribution pattern of "stop block 210-support 220-support 220". The two supports 220 can be relatively close to or far apart.

[0021] Specific Implementation Method Two: Combining Figures 1 to 3 This embodiment describes a configuration in which two supports 220 are symmetrically arranged relative to the top block 100. Other components and connections are the same as in specific embodiment one.

[0022] Specific implementation method three: Combining Figures 1 to 3 This embodiment describes a T-shaped groove on the base 200.

[0023] Furthermore, the longitudinal section of the stop 210 is L-shaped, and the stop 210 is mounted on the base 200 by T-bolts.

[0024] Furthermore, both supports 220 are mounted on the base 200 by T-bolts.

[0025] The other components and connections are the same as in specific implementation method one or two.

[0026] Specific implementation method four: Combination Figures 1 to 3 In this embodiment, both supports 220 have workpiece receiving grooves on their upper surfaces, and the width of the workpiece receiving grooves is greater than the width of the leaf spring. Other components and connections are the same as in specific embodiments one, two, or three.

[0027] Specific Implementation Method Five: Combining Figures 1 to 3 In this embodiment, the base 200 is made of medium carbon steel.

[0028] Furthermore, the stop block 210 is made of medium carbon steel.

[0029] Furthermore, both supports 220 are made of medium carbon steel.

[0030] Furthermore, the top block 100 is made of medium carbon steel.

[0031] The other components and connections are the same as those in specific implementation methods one, two, three, or four.

[0032] Working principle

[0033] The top block 100 is installed on the loading head of the mechanical testing machine, the base 200 is installed on the base of the mechanical testing machine, the stop block 210 and the two supports 220 are installed on the base 200 in sequence, and the positions of the two supports 220 are adjusted according to the length of the irregular leaf spring to be tested so that the lugs at both ends abut against the supports 220.

[0034] Two supports 220 are symmetrically arranged relative to the top block 100. The supports 220 bear the pressure in the vertical direction. This arrangement causes the irregular leaf spring to bend at three points. The top block 100 can be pressed down to conduct a stiffness test, or the working load of this model of irregular leaf spring can be measured according to the working height / deformation. The stop block 210 is arranged at the end of the irregular leaf spring where the lug is curled upward and is arranged outside the support 220 to prevent the irregular leaf spring from being ejected outward due to bending deformation during the test, which would cause the internal elastic potential energy to be released instantaneously or the irregular leaf spring to break instantly.

[0035] The present invention has been disclosed above with preferred embodiments, but it is not intended to limit the present invention. Any simple modifications, equivalent changes and alterations made by those skilled in the art to the above embodiments without departing from the technical solution of the present invention, based on the technical essence of the present invention, shall still fall within the scope of the technical solution of the present invention.

Claims

1. A testing device for detecting the stiffness of irregularly shaped leaf springs, characterized in that: It includes a top block (100), a base (200), a stop block (210), and two supports (220); The base (200) is installed on the base of the mechanical testing machine, and the top block (100) is installed on the loading head of the mechanical testing machine, and the cutting edge of the top block (100) is perpendicular to the length direction of the base (200). The stop (210) and two supports (220) are installed on the base (200) in sequence, and the two supports (220) can be relatively close to or far apart.

2. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 1, characterized in that: The two supports (220) are arranged symmetrically with respect to the top block (100).

3. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 2, characterized in that: The base (200) has a T-shaped groove.

4. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 3, characterized in that: The base (200) is made of medium carbon steel.

5. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 4, characterized in that: The longitudinal section of the stop block (210) is L-shaped, and the stop block (210) is installed on the base (200) by T-bolts.

6. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 5, characterized in that: The stop block (210) is made of medium carbon steel.

7. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 6, characterized in that: Both supports (220) are mounted on the base (200) by T-bolts.

8. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 7, characterized in that: The upper surfaces of both supports (220) are provided with workpiece receiving grooves.

9. The testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 8, characterized in that: Both supports (220) are made of medium carbon steel.

10. A testing device for detecting the stiffness of irregularly shaped leaf springs according to claim 9, characterized in that: The top block (100) is made of medium carbon steel.

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