High-voltage testing device for polyurethane pad

Abstract

The utility model provides a high-pressure testing device for a polyurethane pad, and aims to solve the technical problem that the pressure resistance of the polyurethane pad cannot be comprehensively displayed when the polyurethane pad is tested in the prior art. The high-voltage testing device comprises a rack; the two sets of clamps are arranged on the two sides of the rack respectively, the clamps are used for clamping the ends of the polyurethane pad, and a testing area is arranged between the two sets of clamps; the pressure applying assembly is arranged on the rack and located above the testing area, and the pressure applying end of the pressure applying assembly is vertically downward; the pressure sensor is arranged at the pressure applying end of the pressure applying assembly; and the distance sensor is arranged on the rack and is positioned below the test area. According to the high-pressure testing device, the two ends of the polyurethane pad needing to be tested are clamped through the two clamps, then the pressure applying assembly is used for applying pressure to the polyurethane pad, deformation data of the polyurethane pad are obtained through the pressure sensor and the distance sensor, and therefore comprehensive pressure resistance data are obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of test equipment, specifically to a kind of high-pressure testing device of polyurethane pad. BACKGROUND

[0002] The full name of polyurethane is polyurethane, which is a high polymer material formed by polyol and polyisocyanate through condensation polymerization and has excellent mechanical properties. It has very strong plasticity. Polyurethane pads made of polyurethane are commonly used in places such as shock absorption, and generally require strong compression resistance.

[0003] The existing equipment for testing the compression resistance of polyurethane pads usually applies pressure to the surface of the polyurethane pad and observes the pressure intensity at the time of surface rupture to obtain the compression resistance of the polyurethane pad.

[0004] The current test equipment cannot fully demonstrate the compression resistance of the polyurethane pad, mainly due to the presence of support at the bottom during testing. INVENTION CONTENTS

[0005] To solve the technical problem that the existing technology cannot fully demonstrate the compression resistance of the polyurethane pad during testing, the utility model provides a high-pressure testing device for polyurethane pad. The device clamps the ends of the polyurethane pad to be tested using two clamps, then applies pressure to the polyurethane pad using a pressure applying assembly, and obtains deformation data of the polyurethane pad through a pressure sensor and a distance sensor to obtain comprehensive compression resistance data.

[0006] The technical solution of the utility model is as follows:

[0007] A high-pressure testing device for polyurethane pad, comprising:

[0008] a rack;

[0009] two groups of clamps, respectively arranged on both sides of the rack, the clamps are used to clamp the ends of the polyurethane pad, and the two groups of clamps have a test area between them;

[0010] a pressure applying assembly arranged on the rack and located above the test area, the pressure applying end of the pressure applying assembly is vertically downward;

[0011] a pressure sensor arranged on the pressure applying end of the pressure applying assembly;

[0012] a distance sensor arranged on the rack and located below the test area.

[0013] Optionally, the clamp comprises:

[0014] a bottom plate arranged on the rack, the bottom plate is arranged in the horizontal direction;

[0015] Supporting plate, L-shaped structure, one end of the supporting plate is fixed on the bottom plate, the other end of the supporting plate is suspended above the bottom plate, and the end of the supporting plate has a threaded hole;

[0016] Compression bolt, matched in the threaded hole, the compression bolt is above the supporting plate.

[0017] Optionally, the clamp comprises two supporting plates and the compression bolt, and the two supporting plates are located at the two ends of the bottom plate.

[0018] Optionally, the bottom end of the compression bolt is rotatably connected with a clamping plate.

[0019] Optionally, the bottom plate is provided with a T-shaped slot, the rack is provided with a T-shaped supporting block, the supporting block is matched with the T-shaped slot, and a tension sensor is arranged in the T-shaped slot.

[0020] Optionally, the pressure applying assembly comprises:

[0021] Hydraulic system, the piston of the hydraulic system is arranged vertically downward;

[0022] Pressing plate, arranged at the bottom end of the piston;

[0023] Wherein, the pressure sensor is arranged on the bottom surface of the pressing plate.

[0024] Optionally, the bottom surface of the pressing plate is provided with a mounting groove, the pressure sensor is arranged in the mounting groove, and the detection end of the pressure sensor is flush with the bottom surface of the pressing plate.

[0025] Optionally, a plurality of mounting grooves are arranged on the bottom surface of the pressing plate, and one pressure sensor is arranged in each mounting groove.

[0026] Optionally, a plurality of distance sensors are arranged on the rack and are all located below the pressure applying assembly.

[0027] Compared with the prior art, the utility model has the beneficial effects that:

[0028] The polyurethane pad to be tested is clamped at both ends by two clamps, so that the polyurethane pad is located in the test area, then the middle part of the polyurethane pad is pressed by the pressure applying end of the pressure applying assembly, and the deformation data of the polyurethane pad is obtained through the pressure sensor and the distance sensor, so that the comprehensive compression resistance data is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 3 This is a structural schematic diagram of the present invention viewed from below;

[0033] Figure 4 for Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0034] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0035] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0037] Example:

[0038] See Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment discloses a high-pressure testing device for a polyurethane pad, which comprises a rack 10, clamps 20, a pressure applying assembly 30, a pressure sensor 40 and a distance sensor 50. Specifically, the clamps 20 are arranged on both sides of the rack 10 and have a certain spacing between the two clamps 20, and the spacing forms a testing area. The polyurethane pad 60 to be tested is clamped by the two clamps 20 and fixed in the testing area.

[0039] The testing area is located in the middle of the rack 10, so that the bottom of the polyurethane pad 60 has a certain spacing from the ground after the polyurethane pad 60 is fixed.

[0040] The pressure applying assembly 30 is arranged on the rack 10 and located above the testing area, and the pressure applying assembly 30 comprises a pressure applying end arranged downward, which is mainly used for applying pressure to the polyurethane pad 60 to be tested.

[0041] The pressure sensor 40 is arranged on the pressure applying end of the pressure applying assembly 30, and the distance sensor 50 is arranged on the rack 10 and located below the testing area and has a certain spacing from the testing area.

[0042] In the test of the compression resistance of the polyurethane pad 60, the two ends of the polyurethane pad 60 are clamped by the two clamps 20, and then the pressure applying end of the pressure applying assembly 30 applies pressure to the polyurethane pad 60. In this process, the pressure sensor 40 measures the pressure value of the pressure applying assembly 30, and the distance sensor 50 arranged below the testing area measures the deformation amount of the polyurethane pad 60.

[0043] In the embodiment, the data measured by the pressure sensor 40 and the data measured by the distance sensor 50 are obtained and comprehensively analyzed, and finally the compression resistance of the polyurethane pad 60 is obtained.

[0044] In one specific embodiment,

[0045] The clamp 20 comprises a bottom plate 21, a supporting plate 22, a compression bolt 23 and a clamping plate 24. The bottom plate 21 is fixedly arranged on the rack 10 and arranged in the horizontal direction, and the supporting plate 22 is arranged on the bottom plate 21. The supporting plate 22 is in L-shaped structure, one end of the supporting plate 22 is fixedly arranged on the bottom plate 21, and the other end of the supporting plate 22 is provided with a threaded hole, and the other end of the supporting plate 22 is suspended above the bottom plate 21.

[0046] The compression bolt 23 is matched with the threaded hole at the end of the supporting plate 22, the bolt head of the compression bolt 23 is in hexagonal column structure, the bottom end of the compression bolt 23 is located between the supporting plate 22 and the bottom plate 21, and the bottom end of the compression bolt 23 is rotationally connected with the middle part of the clamping plate 24. The clamping plate 24 is in circular structure.

[0047] In the working process, one end of the polyurethane pad 60 is inserted into the gap formed between the support plate 22 and the bottom plate 21, and then the pressing bolt 23 is rotated by a wrench or the like, so as to fix the polyurethane pad 60 between the clamping plate 24 and the bottom plate 21. In the embodiment, the clamping plate 24 is arranged to increase the distance between the polyurethane pad 60 and the end of the pressing bolt 23, so as to avoid damage to the connection between the polyurethane pad 60 and the pressing bolt 23 during the test, thereby causing the test to fail.

[0048] Since the clamping plate 24 is in a rotating connection with the pressing bolt 23, when the clamping plate 24 does not contact the polyurethane pad 60, the clamping plate 24 rotates together with the locking bolt. When the clamping plate 24 contacts the polyurethane pad 60, the pressure of the polyurethane pad 60 increases with the pressing of the pressing bolt 23, and the clamping plate 24 gradually loses the ability to rotate in the process of increasing the friction, and finally realizes the clamping of the polyurethane pad 60.

[0049] Preferably, a support plate 22, a pressing bolt 23 and a clamping plate 24 are symmetrically arranged at both ends of the clamping plate 24.

[0050] In another specific embodiment:

[0051] The bottom plate 21 is provided with a T-shaped slot, and the rack 10 is provided with a T-shaped support block 25 which matches the T-shaped slot. The T-shaped slot is provided with a tension sensor 26. The T-shaped slot and the support block 25 are arranged in a T-shaped structure, one end of which is close to the test area. During the test, the polyurethane pad 60 is subjected to the pressure of the pressing assembly 30, and the polyurethane pad 60 tends to move towards the test area. Therefore, in the embodiment, the tension sensor 26 is arranged to sense the tension of the polyurethane pad 60 on the clamp 20, and then the data of the pressure sensor 40 and the distance sensor 50 are comprehensively analyzed to analyze the compression resistance of the polyurethane pad 60.

[0052] In another specific embodiment:

[0053] The pressing assembly 30 includes a hydraulic system 31 and a pressing plate 32. The piston 33 of the hydraulic system 31 is arranged vertically downward, and the pressing plate 32 is arranged at the bottom end of the piston 33. The pressing plate 32 is the pressing end of the pressing assembly 30. Therefore, the pressure sensor 40 is arranged on the bottom surface of the pressing plate 32.

[0054] The bottom plate 21 can increase the contact area between the piston 33 of the hydraulic system 31 and the polyurethane pad 60, and improve the accuracy of the test data.

[0055] The bottom surface of the pressing plate 32 is provided with a mounting groove 34, and the pressure sensor 40 is arranged in the mounting groove 34. The detection end of the pressure sensor 40 is flush with the bottom surface of the pressing plate 32.

[0056] Preferably, the bottom surface of the pressing plate 32 is provided with a plurality of installation grooves 34, and each installation groove 34 is provided with a pressure sensor 40.

[0057] The installation groove 34 is used for embedding the pressure sensor 40. Since the polyurethane pad 60 will be deformed in a bending manner when being pressed, a plurality of pressure sensors 40 are arranged to accurately test the pressure value of the polyurethane pad 60.

[0058] In another specific embodiment,

[0059] The rack 10 is provided with a plurality of distance sensors 50, and each distance sensor 50 is located below the pressing assembly 30. When the polyurethane pad 60 is deformed in a bending manner, the actual deformation amount of the polyurethane pad 60 is measured by arranging a plurality of distance sensors 50.

[0060] The above embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as the limitation of the patent scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and these all belong to the protection scope of the present application.

Claims

1. A high pressure testing device for polyurethane cushions, characterized by, The utility model relates to a polyurethane pad testing device, comprising: a rack; two sets of clamps, respectively arranged on the two sides of the rack, the clamps are used for clamping the end of polyurethane pad, and a test area is formed between the two sets of clamps; a pressure assembly is arranged on the rack and located above the test area, and the pressure end of the pressure assembly is vertically downward; a pressure sensor is arranged on the pressure end of the pressure assembly; a distance sensor is arranged on the rack and located below the test area.

2. The high pressure testing apparatus for polyurethane cushions of claim 1, wherein, The clamp comprises: a bottom plate arranged on the rack, the bottom plate is arranged along the horizontal direction; a support plate with L-shaped structure, one end of the support plate is fixedly arranged on the bottom plate, the other end of the support plate is suspended above the bottom plate, and the end of the support plate is provided with a threaded hole; a compression bolt is matched in the threaded hole, and the compression bolt is located above the support plate.

3. The high pressure testing apparatus for polyurethane cushions of claim 2, wherein, The clamp comprises two support plates and the compression bolt, and the two support plates are located at the two ends of the bottom plate.

4. A high pressure testing device for polyurethane mats according to claim 2 or 3, characterized in that The bottom end of the compression bolt is rotationally connected with a clamping plate.

5. The high pressure testing apparatus for polyurethane cushions of claim 2, wherein, A T-shaped groove is arranged on the bottom plate, a T-shaped support block is arranged on the rack, the support block is matched with the T-shaped groove, and a tension sensor is arranged in the T-shaped groove.

6. The high pressure testing apparatus for polyurethane cushions of claim 1, wherein, The pressure assembly comprises: a hydraulic system, the piston of the hydraulic system is vertically downwardly arranged; a pressing plate is arranged at the bottom end of the piston; wherein, the pressure sensor is arranged on the bottom surface of the pressing plate.

7. The high pressure testing apparatus for polyurethane cushions of claim 6, wherein, The bottom surface of the pressing plate is provided with a mounting groove, the pressure sensor is arranged in the mounting groove, and the detection end of the pressure sensor is flush with the bottom surface of the pressing plate.

8. The high pressure testing apparatus for polyurethane cushions of claim 7, wherein, The bottom surface of the pressing plate is provided with a plurality of mounting grooves, and one pressure sensor is arranged in each mounting groove.

9. The high pressure testing apparatus for polyurethane cushions of claim 1, wherein, A plurality of distance sensors are arranged on the rack and located below the pressure assembly.

Images