A testing device and testing method for elastic force of elastic ring

Abstract

The present invention relates to a testing device for the elastic force of an elastic ring, comprising a workbench, a bearing pair and a thruster, wherein the bearing pair is located at one end of the workbench, the thruster is located at one end of the workbench away from the bearing pair, a thrust plate is provided at one end of the thruster close to the bearing pair, the bearing pair comprises a first bearing and a second bearing, the first bearing and the second bearing are mounted on the workbench, when testing the elastic force of the elastic ring, the elastic ring to be tested is placed between the bearing pair and the thruster, and the thruster is manually pushed to measure the elastic force of the elastic ring and the radius of the elastic ring after compression. The device has a simple structure, is easy to prepare, can measure the elastic force quickly and accurately, and the elastic ring itself will not be deformed during the measurement process.

Description

Technical Field

[0001] The invention relates to an elastic force testing device, in particular to an elastic force testing device for an elastic ring, and a testing method for measuring the elastic force of an elastic ring. Background Art

[0002] Elastic ring is a component often used in plastic sealing structure, and is widely used in various industries. This kind of elastic ring needs to undergo a certain endurance test before leaving the factory. The traditional test is to apply a certain pressure on both sides of the elastic ring symmetrically, but this test method can easily cause the elastic ring to deform into an elliptical shape, resulting in inaccurate elastic force measurement of the elastic ring, affecting the actual measurement results of the elastic ring. Summary of the invention

[0003] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a testing device for the elastic force of an elastic ring. This patent not only realizes the testing of the elastic force of the elastic ring, but also avoids the deformation of the elastic ring during the test, so that the measurement result is more accurate.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a device for testing the elastic force of an elastic ring, comprising a workbench, a bearing pair and a thruster, wherein the bearing pair is located at one end of the workbench, the thruster is located at an end of the workbench away from the bearing pair, a thrust plate is provided at one end of the thruster close to the bearing pair, the bearing pair comprises a first bearing and a second bearing, and the first bearing and the second bearing are mounted on the workbench.

[0005] Preferably, the workbench further comprises a sliding track, scale lines are arranged on both sides of the sliding track, the first bearing and the second bearing respectively pass through a rotating shaft, pass through the sliding track, and are fixed on the workbench.

[0006] Preferably, the workbench is provided with arc-shaped scale lines.

[0007] Preferably, the thruster is provided with a display panel.

[0008] Preferably, a support frame is provided between the bearing pair and the thruster, the support frame comprises a first support column and a push plate, a guide column is provided on the push plate, the first support column extends into the guide column and is fixedly connected to the guide column by a screw.

[0009] A method for measuring the elastic force of an elastic ring by using an elastic ring elastic force testing device comprises the following steps: first, placing the elastic ring to be tested between the bearing pair and the thruster; second, pushing the thruster, and when the two ends of the elastic ring overlap again, reading the elastic force of the elastic ring at this time, which is recorded as the first elastic force; third, continuing to push the thruster, and when the two ends of the elastic ring overlap for the third time, reading the elastic force of the elastic ring at this time, which is recorded as the second elastic force, and repeating the above steps, and determining the diameter of the spring after compression through the arc scale line, and reading the corresponding elastic force value.

[0010] When the device is used, the elastic ring to be tested is first placed between the bearing pair and the thruster, so that the elastic ring contacts the first bearing, the second bearing and the thrust plate respectively, and then the thruster is manually pushed to read the elastic force value of the elastic ring once the ends of the elastic ring overlap.

[0011] In summary, a device for testing the elastic force of an elastic ring has the following beneficial effects: by arranging a first bearing and a second bearing, the elastic ring can slide relative to the first bearing and the second bearing when compressed, thereby preventing the elastic ring from being deformed due to the lack of relative motion, thereby affecting the test of the elastic force of the elastic ring; by arranging a display panel on the thruster, the user can observe the elastic force of the elastic ring more intuitively; the setting of the scale line can enable the user to see the shape and size of the elastic ring after compression, so that the user can select the elastic ring of the appropriate size. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The figure is a structural diagram of a device for testing the elastic force of an elastic ring.

[0013] Figure 2 for Figure 1 Top view of the .

[0014] Figure 3 This is the force analysis diagram of the elastic ring.

[0015] Figure 4 A schematic diagram of the structure of the support frame.

[0016] Figure 5 It is a schematic diagram of the workbench and the push-pull structure, used to show the connection relationship between the workbench and the thruster.

[0017] 1. Workbench; 2. Bearing pair; 3. Thruster; 11. Scale line; 12. Slide groove; 21. Sliding track; 22. First bearing; 23. Second bearing; 24. Support frame; 31. Thrust plate; 32. Display panel; 33. Slider; 211. Guide groove; 241. First pillar; 242. Push plate; 243. Guide pillar; 4. Elastic ring. DETAILED DESCRIPTION

[0018] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0019] See also Figures 1 to 5 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0020] like Figure 1 As shown, the present invention relates to a testing device for the elastic force of an elastic ring, comprising a workbench 1, a bearing pair 2 and a thruster 3, wherein the bearing pair 2 is located at one end of the workbench 1, the bearing pair 2 is used to resist the elastic ring 4, and cooperate with the elastic ring 4 to rotate during compression, the thruster 3 is located at one end of the workbench 1 away from the bearing pair 2, the thruster 3 is used to push the elastic ring 4 and compress the elastic ring 4; a slider 33 is provided at the lower end of the thruster 3, a slide groove 12 is provided on the workbench, and the slider 33 can slide left and right in the slide groove 12, as shown in FIG. Figure 5 The thruster 3 is provided with a thrust plate 31 at one end close to the bearing pair 2. The thrust plate 31 is used to directly contact the elastic ring 4 and push the elastic ring 4 to work. The bearing pair 2 includes a first bearing 22 and a second bearing 23. The first bearing 22 and the second bearing 23 are mounted on the workbench 1. The first bearing 22 and the second bearing 23 are symmetrical about the position to ensure that the workbench 1 does not move relative to each other when measuring the elastic force of the elastic ring 4. At the same time, it can also assist the elastic ring 4 to deform when the elastic ring 4 is compressed.

[0021] In this embodiment, if Figure 2The workbench 1 further comprises a sliding track 21, on which a scale line 211 is arranged, and the first bearing 22 and the second bearing 23 respectively pass through the sliding track 21 through a rotating shaft and are fixed on the workbench 1. When the whole device is used, firstly, a suitable position is selected according to the size of the elastic ring 4, and then the first bearing 22 and the second bearing 23 are fixed at the corresponding positions through the rotating shaft.

[0022] In this embodiment, if Figure 1 Or 2, the workbench is provided with an arc scale line 11, and the arc scale line 11 extends from the middle position of the first bearing 22 and the second bearing 23 to the position of the thrust plate 31. When the thrust plate 31 compresses the elastic ring 4, the user can intuitively read the diameter of the elastic ring 4 after compression through the arc scale line 11.

[0023] In this embodiment, if Figure 3 The thruster 3 is provided with a display panel 32, which can be a pointer or an LED display screen. No matter which form is adopted, the user can clearly read the magnitude of the elastic force of the elastic ring 4. During measurement, the force analysis of the elastic ring 4 is first performed. The elastic force of the first bearing 22 on the elastic ring 4 is recorded as F3, the elastic force of the second bearing 23 on the elastic ring 4 is recorded as F4, the force of the elastic ring 4 on the thrust plate 31 is F2, and the thrust of the thrust plate 31 on the thruster 3 is F1. The forces of F3 and F4 are decomposed.

[0024] Then, the stress condition of the elastic ring 4 is analyzed, and it can be known that:

[0025] F1=F2,

[0026] F3=F4,

[0027] F3cosθ+F4cosθ=F2,

[0028] During the entire propulsion process of the thruster 3 , since the elastic ring 4 will be compressed, the angle θ will change with the change of the thrust, but the force of F2 will be displayed on the display panel 32 , so the user can read it on the display panel 32 .

[0029] In this embodiment, if Figure 4A support frame 24 is provided between the bearing pair 2 and the thruster 3. When the entire device is hung upside down for use, the support frame 24 can prevent the elastic ring 4 from falling from between the first bearing 22 and the second bearing 23. The support frame 24 includes a first pillar 241 and a push plate 242. The first pillar 241 is used to fix the push plate 242. A guide column 243 is provided on the push plate 242. The push plate 242 is used to block the elastic ring 4. The first pillar 241 extends into the guide column 243 and is fixedly connected to the guide column 243 by a screw. The position of the push plate 242 on the first pillar 241 can be adjusted according to the actual height of the elastic ring 4.

[0030] A method for measuring the elastic force of an elastic ring by using a testing device for the elastic force of an elastic ring comprises the following steps: first, placing the elastic ring 4 to be tested between the bearing pair 2 and the thruster 3; second, pushing the thruster 3, and when the two ends of the elastic ring 4 overlap again, reading the elastic force of the elastic ring 4 at this time, which is recorded as the first elastic force; third, continuing to push the thruster 3, and when the two ends of the elastic ring 4 overlap for the third time, reading the elastic force of the elastic ring 4 at this time, which is recorded as the second elastic force, and repeating the above steps, and determining the diameter of the spring after compression through the arc scale line 11, and reading the corresponding elastic force value.

[0031] When the device is used, the elastic ring 4 to be tested is first placed between the bearing pair 2 and the thruster 3, so that the elastic ring 4 contacts the first bearing 22, the second bearing 23 and the thrust plate 31 respectively, and then the thruster 3 is manually pushed to read the elastic force value of the elastic ring when the elastic ring 4 is in the diameter state corresponding to the arc scale line 11.

[0032] In summary, a device for testing the elastic force of an elastic ring has the following beneficial effects: by arranging a first bearing and a second bearing, the elastic ring can slide relative to the first bearing and the second bearing when compressed, thereby preventing the elastic ring from being deformed due to the lack of relative motion, thereby affecting the test of the elastic force of the elastic ring; by arranging a display panel on the thruster, the user can observe the elastic force of the elastic ring more intuitively; the setting of the scale line can enable the user to see the shape and size of the elastic ring after compression, thereby facilitating the user to screen out elastic rings of verified size.

[0033] Therefore, the invention overcomes various defects of the prior art and has high industrial utilization value and practical value.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A device for testing the elastic force of an elastic ring, characterized in that: The invention comprises a workbench (1), a bearing pair (2) and a thruster (3), wherein the bearing pair (2) is located at one end of the workbench (1), the thruster (3) is located at an end of the workbench (1) away from the bearing pair (2), a thrust plate (31) is provided at an end of the thruster (3) close to the bearing pair (2), the bearing pair (2) comprises a first bearing (22) and a second bearing (23), and the first bearing (22) and the second bearing (23) are mounted on the workbench (1); The workbench (1) is provided with an arc scale line (11), and the arc scale line (11) extends from the middle position between the first bearing (22) and the second bearing (23) to the position of the thrust plate (31). When the thrust plate (31) compresses the elastic ring (4), the diameter of the elastic ring (4) after compression can be intuitively read through the arc scale line (11); The thruster (3) is provided with a display panel (32).

2. The device for testing the elastic force of an elastic ring according to claim 1, characterized in that: The workbench (1) further comprises a sliding track (21), scale lines (211) are provided on both sides of the sliding track (21), and the first bearing (22) and the second bearing (23) respectively pass through a rotating shaft, pass through the sliding track (21), and are fixed on the workbench (1).

3. A device for testing the elastic force of an elastic ring according to claim 2, characterized in that: A support frame (24) is provided between the bearing pair (2) and the thruster (3), the support frame (24) comprising a first support column (241) and a push plate (242), a guide column (243) being provided on the push plate (242), the first support column (241) extending into the guide column (243) and being fixedly connected to the guide column (243) by a screw.

4. A method for measuring the elastic force of an elastic ring according to claim 1, characterized in that: The first step is to place the elastic ring (4) to be tested between the bearing pair (2) and the thruster (3); the second step is to push the thruster (3), and when the two ends of the elastic ring (4) overlap again, the elastic force of the elastic ring (4) at this time is read out through the display panel (32), and recorded as the first elastic force; the third step is to continue to push the thruster (3), so that when the two ends of the elastic ring (4) overlap for the third time, the elastic force of the elastic ring (4) at this time is read out through the display panel (32), and recorded as the second elastic force, and the diameter of the spring after compression is determined by the arc scale line (11), and the corresponding elastic force value is read out.

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