Strength detection device for filter cartridge framework

Abstract

The utility model discloses a filter cartridge framework strength detection device which comprises an upper fixing device and a lower fixing device which are arranged up and down, and the upper fixing device and the lower fixing device are respectively arranged at the moving end of a strength tester and a rack; the upper fixing device comprises an upper fixing block mounted at the moving end of the strength tester and two groups of clamping assemblies mounted on two sides of the upper fixing block, and the clamping assemblies are used for fixing the end part of a skeleton sample; the lower fixing device comprises a lower fixing block installed on a strength tester rack and an arc-shaped groove formed in the upper surface of the lower fixing device in a sunken mode, and the arc-shaped groove is matched with the peripheral face of the framework sample. According to the utility model, the clamping assembly of the upper fixing device and the arc-shaped groove of the lower fixing device can effectively prevent the skeleton to be detected from slipping, thereby ensuring the smooth detection of the compressive strength of the skeleton.

Description

Technical Field

[0001] The utility model relates to the technical field of filter cartridge testing, in particular to a filter cartridge skeleton strength detection device. Background Art

[0002] The filter cartridge is mainly composed of a frame, filter material and binding straps, among which the frame is supported on the inner wall of the filter material and determines the overall strength of the filter cartridge. Therefore, after the frame of the filter cartridge is processed, it is necessary to conduct a compressive strength test.

[0003] According to the relevant provisions of the existing dust filter cartridge technical requirements standard (hereinafter referred to as the "standard") for the compressive strength test of the filter cartridge frame, a test device is provided. The fixture of the test device includes two rectangular blocks arranged one above the other, which are used to clamp and press the frame to be tested. Since the contact surface between the frame to be tested and the block is a flat surface, the sample is prone to slip during the test extrusion process, affecting the test efficiency and accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a filter cartridge skeleton strength detection device to solve the problems existing in the prior art, effectively prevent the skeleton to be tested from slipping, and ensure the smooth progress of the skeleton compressive strength detection.

[0005] In order to achieve the above purpose, the solution of the utility model is:

[0006] A filter cartridge skeleton strength detection device comprises an upper fixing device and a lower fixing device which are arranged up and down, and the upper fixing device and the lower fixing device are respectively arranged on the moving end and the frame of a strength machine; the upper fixing device comprises an upper fixing block installed on the moving end of the strength machine, and two groups of clamping assemblies installed on both sides of the upper fixing block, and the clamping assemblies are used to fix the ends of the skeleton sample; the lower fixing device comprises a lower fixing block installed on the frame of the strength machine, and an arc-shaped groove recessed on the upper surface of the lower fixing device, and the arc-shaped groove matches the outer peripheral surface of the skeleton sample.

[0007] Both end surfaces of the upper fixing block are protruding to form mounting blocks; the clamping assembly includes a clamping block arranged below the mounting block, a screw passing through the clamping block and threadedly connected to the mounting block, and a foam fixedly connected to the upper surface of the clamping block.

[0008] Preferably, the screw passes through the outer end of the clamp block, and the upper surface of the inner end of the clamp block is connected to the foam, which is used to cooperate with the lower surface of the upper fixing block to clamp and fix the end of the skeleton sample.

[0009] Preferably, the foam is fixed to the upper surface of the clamping block by gluing.

[0010] Preferably, the contact area between the foam and the skeleton sample is set to 15 cm 2 .

[0011] The curvature radius of the arc-shaped groove is 130-160 mm.

[0012] After adopting the above technical solution, the utility model has the following technical effects:

[0013] The upper fixing device and the lower fixing device installed on the strength machine are used to clamp and fix the skeleton sample to be tested, wherein both ends of the upper fixing device are provided with clamping components, which can fix the end of the skeleton sample and perform axial limitation and anti-rotation. The arc-shaped groove of the lower fixing device can match the circumferential surface of the skeleton sample so that it sinks into the upper surface of the lower fixing block, and plays a role of radial limitation during the test. The upper fixing device and the lower fixing device can not only realize the extrusion of the skeleton sample, but also prevent the skeleton sample from slipping during the extrusion process, thereby ensuring the smooth progress of the skeleton compressive strength test. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of a specific embodiment of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of a specific embodiment of the utility model;

[0016] Figure 3 It is a schematic diagram of the use of a specific embodiment of the utility model;

[0017] Description of Figure Numbers:

[0018] 1----upper fixing device; 11---upper fixing block; 111--mounting block; 12---clamping assembly; 121--clamping block; 122--screw; 123--foam;

[0019] 2----Lower fixing device; 21---Lower fixing block; 22---Arc groove;

[0020] 3----Skeleton sample. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present utility model, the present utility model is described in detail below through specific embodiments.

[0022] refer to Figure 1 and Figure 2As shown, the utility model discloses a filter cartridge skeleton strength detection device, comprising an upper fixing device 1 and a lower fixing device 2 arranged up and down, the upper fixing device 1 and the lower fixing device 2 are respectively arranged on the moving end and the frame of the strength machine (the strength machine is a prior art and is not shown in the figure); that is, the upper fixing device 1 can perform vertical lifting and lowering movements along with the moving end of the strength machine, the lower fixing device 2 remains relatively fixed with the strength machine, and the upper fixing device 1 and the lower fixing device 2 move toward each other to realize the extrusion of the skeleton sample 3;

[0023] The upper fixing device 1 comprises an upper fixing block 11 installed at the moving end of the strength machine, and two sets of clamping assemblies 12 installed on both sides of the upper fixing block 11, and the clamping assemblies 12 are used to fix the ends of the skeleton sample 3;

[0024] The lower fixing device 2 includes a lower fixing block 21 installed on the strength machine frame, and an arc-shaped groove 22 recessed on the upper surface of the lower fixing device 2, and the arc-shaped groove 22 matches the outer peripheral surface of the skeleton sample 3.

[0025] Specific embodiments of the present utility model are shown below.

[0026] Both end surfaces of the upper fixing block 11 are protruding to form mounting blocks 111; the clamping assembly 12 includes a clamping block 121 disposed below the mounting block 111, a screw 122 disposed through the clamping block 121 and threadedly connected to the mounting block 111, and a foam 123 fixedly connected to the upper surface of the clamping block 121. By turning the screw 122, the distance between the clamping block 121 and the mounting block 111 can be increased or decreased, thereby loosening or clamping the end of the skeleton sample 3; at the same time, the foam 123 plays a buffering role between the clamping block 121 and the skeleton sample 3, and adapts to the deformation of the inner wall of the skeleton sample 3, so as to avoid the clamping block 121 directly acting on the inner wall of the skeleton sample 3 after the screw 122 is locked, causing the end of the skeleton sample 3 to be deformed due to the force of the clamping block 121, thereby avoiding affecting the result of the compressive strength test.

[0027] Furthermore, the screw 122 passes through the outer end of the clamp block 121, and the upper surface of the inner end of the clamp block 121 is connected with a foam 123, which is used to cooperate with the lower surface of the upper fixing block 11 to clamp and fix the end of the skeleton sample 3. In the process of disassembling the skeleton sample 3, the inner end of the clamp block 121 can be rotated outward first to facilitate the movement of the skeleton sample 3.

[0028] At the same time, the foam 123 is fixed to the upper surface of the clamp 121 by gluing. In this embodiment, the contact area between the foam 123 and the skeleton sample 3 is set to 15 cm 2 .

[0029] Furthermore, the adjustment range of the screw 122 is 0 to 20 mm.

[0030] The upper fixing block 11 and the lower fixing block 21 can be installed on the moving end and the frame of the strength machine by means of bolt locking, clamp fixing, etc. to achieve a detachable connection.

[0031] In this embodiment, the curvature radius of the arc-shaped groove 22 is 130-160 mm.

[0032] refer to Figure 3 As shown, the test process of the utility model is:

[0033] Cut 15mm of the filter cartridge skeleton as skeleton sample 3, and measure and record the inner surface diameter d, outer surface diameter D, material and thickness of skeleton sample 3; then put skeleton sample 3 into the arc groove 22 of the lower fixing block 21; then use the strength machine to drive the upper fixing device 1 to move down to the skeleton sample 3 and stop moving, rotate the clamp 121 to the inside of the skeleton sample 3, tighten the screw 122 so that the clamp 121 cooperates with its foam 123 to fix the end of the skeleton sample 3; after both ends of the skeleton sample 3 are fixed, continue to start the strength machine to press down to the skeleton D / 2 and stop pressing, record the maximum pressure during the pressing process, and complete the test. By clearly stipulating the length of the skeleton sample 3 (15mm), and measuring and recording the inner surface diameter d, outer surface diameter D, material, thickness and other data of the skeleton sample 3, the horizontal comparison of the test result data can be guaranteed.

[0034] Through the above scheme, the utility model is used to clamp and fix the skeleton sample 3 to be tested through the upper fixing device 1 and the lower fixing device 2 installed on the strength machine, wherein both ends of the upper fixing device 1 are provided with clamping assemblies 12, which can fix the end of the skeleton sample 3 and perform axial limitation and anti-rotation, and the arc-shaped groove 22 of the lower fixing device 2 can match the circumferential surface of the skeleton sample 3 so that it is sunken in the upper surface of the lower fixing block 21, and plays a role of radial limitation during the test. The upper fixing device 1 and the lower fixing device 2 can not only realize the extrusion of the skeleton sample 3, but also prevent the skeleton sample 3 from slipping during the extrusion process, thereby ensuring the smooth progress of the skeleton compressive strength test.

[0035] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.

Claims

1. A filter cartridge skeleton strength detection device, characterized in that: It includes an upper fixing device and a lower fixing device arranged up and down, wherein the upper fixing device and the lower fixing device are arranged on the moving end and the frame of the strength machine respectively; The upper fixing device comprises an upper fixing block installed at the moving end of the strength machine, and two sets of clamping assemblies installed on both sides of the upper fixing block, and the clamping assemblies are used to fix the ends of the skeleton sample; The lower fixing device includes a lower fixing block installed on the strength machine frame, and an arc-shaped groove recessed on the upper surface of the lower fixing device, and the arc-shaped groove matches the outer peripheral surface of the skeleton sample.

2. The filter cartridge skeleton strength detection device according to claim 1, characterized in that: Both end surfaces of the upper fixing block are protruding to form mounting blocks; the clamping assembly includes a clamping block arranged below the mounting block, a screw passing through the clamping block and threadedly connected to the mounting block, and a foam fixedly connected to the upper surface of the clamping block.

3. The filter cartridge skeleton strength detection device according to claim 2, characterized in that: The screw passes through the outer end of the clamping block, and the upper surface of the inner end of the clamping block is connected with the foam, which is used to cooperate with the lower surface of the upper fixing block to clamp and fix the end of the skeleton sample.

4. The filter cartridge skeleton strength detection device according to claim 2, characterized in that: The foam is fixed on the upper surface of the clamping block by gluing.

5. The filter cartridge skeleton strength detection device according to claim 2, characterized in that: The contact area between the foam and the skeleton sample is set to 15 cm 2 .

6. The filter cartridge skeleton strength detection device according to claim 1, characterized in that: The curvature radius of the arc-shaped groove is 130-160 mm.

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