Device for detecting connection strength of end cover of filter cartridge
By using a combination of lifting module and end cap fixing module in the filter cartridge end cap connection strength detection equipment, uniform fixing and multiple detection methods are achieved for different samples, and uneven force and high cost in existing equipment are solved. Problem, improving detection accuracy and efficiency.
Patent Information
- Application Number
- CN202420225978.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing filter cartridge end cap connection strength detection equipment cannot achieve uniform force distribution, resulting in inaccurate detection results and high equipment cost, lack of universality for different samples, and the detection process is complicated.
A filter cartridge end cover connection strength detection device including a lifting module and an end cover fixing module is designed, using a platform that can be moved axially along the central hole and a radially movable fixed block, combining a servo motor and a ball screw assembly, Achieve uniform fixation of the end cap and adapt different samples through a removable pull-up module to reduce equipment costs and simplify operation.
It realizes compatibility with different filter cartridges and accuracy of detection results, reduces equipment costs, simplifies operating procedures, and improves detection efficiency.
Smart Images
Figure CN222188960U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of filter cartridge testing, in particular to a filter cartridge end cover connection strength detection device. Background Art
[0002] In the filter cartridge, the end caps (including the top cap and the bottom cap) are mainly connected to the filter material and the center tube. During production, it is necessary to detect the shedding failure load of the end caps. The current detection method is mainly to fix the end caps on the equipment and use the equipment to pull the filter material or the center tube connected to the end caps until they break.
[0003] According to the requirements of the existing dust filter cartridge technical requirements standard (hereinafter referred to as the "Standard") for the end cap fall-off failure load test, it is only limited to fixing the two ends of the sample separately and pulling in the direction away from the two ends until it breaks, and the problem of tension uniformity is not considered. As a result, the existing equipment usually uses hooks and other devices to connect the end caps, and the force distribution on the end caps is not uniform enough, which will affect the accuracy and effectiveness of the test results; at the same time, due to the differences in the connection strength test methods of the filter material, the center tube and the end cap, the existing technology lacks the universality of testing different samples (filter material and end cap, center tube and end cap), resulting in high equipment costs and complicated testing process. Utility Model Content
[0004] The purpose of the utility model is to provide a filter cartridge end cover connection strength detection device to solve the problems existing in the prior art, to be adaptable to different samples, and to provide a variety of detection methods, thereby reducing equipment costs, simplifying operations, and improving detection efficiency.
[0005] In order to achieve the above purpose, the solution of the utility model is:
[0006] A filter cartridge end cap connection strength detection device comprises a lifting module and an end cap fixing module arranged on a strength machine frame, and a pull-up module arranged on a moving end of the strength machine; the strength machine frame is provided with a center hole; the lifting module is arranged in the center hole, and has a platform that can move axially along the center hole; a plurality of end cap fixing modules are arranged around the center hole, and the end cap fixing module has a fixing block that can move radially along the center hole, and the fixing block is provided with a first curved surface facing the center hole; the moving end of the strength machine is located above the center hole and can move axially along the center hole; the pull-up module is detachably mounted on the moving end of the strength machine, and is used for detachably connecting the filter material or the center tube of the sample to be tested.
[0007] The lifting module also includes a bracket, a lower plate, a support plate, a servo motor and a ball screw assembly; the lower plate is lifted and fitted in the bracket; each side of the lower plate is connected to the platform through the support plate; the servo motor is relatively fixed to the bracket, and its output end is transmission-connected to the lower plate through the ball screw assembly.
[0008] The end cover fixing modules are arranged around the center line of the central hole at equal angles and intervals around the central hole.
[0009] The end cover fixing module also includes a first driving device, a front plate and a fixing plate; the first driving device is installed on the strength machine frame, and its output shaft is arranged along the radial direction of the center hole; the front plate is vertically connected to the front end of the output shaft of the first driving device; the rear end of the fixing plate is vertically connected to the upper end of the front plate; the fixing block is connected to the lower surface of the front end of the fixing plate.
[0010] Preferably, the first driving device is a three-axis cylinder.
[0011] Preferably, a second curved surface matching the first curved surface is provided at the front end of the fixing plate.
[0012] A screw rod for detachably connecting the pull-up module is arranged on the moving end of the strength machine.
[0013] The pull-up module includes a mounting plate, a vertical plate, a second driving device and a clamping plate; the mounting plate is detachably connected to the moving end of the strength machine; a plurality of vertical plates are connected to the lower surface of the mounting plate at equal angles; the second driving device is mounted on the outer side of the vertical plate, and its output shaft is passed through the vertical plate; the clamping plate is arranged on the inner side of the vertical plate and connected to the output shaft of the second driving device. Specifically, the second driving device is a three-axis cylinder; the mounting plate is provided with a through hole corresponding to the gap between the vertical plate and the clamping plate; at least one of the opposite surfaces of the vertical plate and the clamping plate is bonded with a layer of foam.
[0014] Alternatively, the pull-up module includes a cylinder detachably connected to the moving end of the strength machine, the outer diameter of the cylinder matches the inner diameter of the central tube of the sample to be tested, and a circle of several positioning holes is provided on the circumference of the cylinder, and the positioning holes are used to lock screws.
[0015] After adopting the above technical solution, the utility model has the following technical effects:
[0016] ① The fixed block which can move radially and has the first arc surface can fit the filter material or the peripheral surface of the center tube when moving radially, and cooperate with the axially movable platform to clamp the end cap, which can not only achieve the purpose of fixing the end cap, but also adapt to different end cap thicknesses and filter cartridge diameters for horizontal and vertical fixation, making the detection equipment compatible with most filter cartridges on the market;
[0017] ② Multiple end cover fixing modules cooperate with the same platform to clamp and fix the end cover, so that the circumferential force of the end cover is more balanced and the detection effect is more accurate;
[0018] ③The pull-up module and the moving end of the strength machine are detachable and can be replaced with appropriate types according to the detection requirements, so that a single detection device can realize multiple detection methods, thereby achieving the purpose of reducing equipment costs, simplifying operations, and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;
[0020] Figure 2 A three-dimensional diagram of a lifting module according to the first embodiment of the utility model;
[0021] Figure 3 A three-dimensional diagram of an end cover fixing module according to the first embodiment of the utility model;
[0022] Figure 4 A three-dimensional diagram of a pull-up module according to the first embodiment of the present utility model;
[0023] Figure 5 It is a perspective view of the second embodiment of the utility model;
[0024] Figure 6 A three-dimensional diagram of a pull-up module according to a second embodiment of the present utility model;
[0025] Description of Figure Numbers:
[0026] 1----Strength machine frame; 11---center hole;
[0027] 2----lifting module; 21---platform; 22---bracket; 23---lower plate; 24---support plate; 25---servo motor; 26---ball screw assembly;
[0028] 3----end cover fixing module; 31---fixing block; 311--first arc surface; 32---first driving device; 33---front plate; 34---fixing plate; 341--second arc surface;
[0029] 4----Moving end of the strength machine; 41---screw;
[0030] 5----Pull-up module; 51---Mounting plate; 511--Through hole; 52---Standing plate; 53---Second driving device; 54---Clamping plate; 55---Foam; 56---Cylinder; 561--Location hole;
[0031] a----end cover; b----filter material; c----center tube. DETAILED DESCRIPTION
[0032] 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.
[0033] refer to Figures 1 to 6 As shown, the utility model discloses a filter cartridge end cover connection strength detection device, comprising a lifting module 2 and an end cover fixing module 3 arranged on a strength machine frame 1, and a pull-up module 5 arranged on a moving end 4 of the strength machine;
[0034] The strength machine frame 1 is provided with a central hole 11;
[0035] The lifting module 2 is arranged in the central hole 11, and has a platform 21 which can move along the axial direction of the central hole 11, and the platform 21 is used to support the end face of the end cover a of the sample to be tested;
[0036] A plurality of end cap fixing modules 3 are arranged around the central hole 11. The end cap fixing modules 3 have a fixing block 31 that can move along the radial direction of the central hole 11. The fixing block 31 is provided with a first arc surface 311 facing the central hole 11. The fixing block 31 is used to cooperate with the platform 21 to achieve clamping of the end cap a.
[0037] The moving end 4 of the strength machine is located above the central hole 11 and can move along the axial direction of the central hole 11;
[0038] The pull-up module 5 is detachably mounted on the moving end 4 of the strength machine, and is used for detachably connecting the filter material b or the central tube c of the sample to be tested.
[0039] In some embodiments of the utility model, the lifting module 2 includes a bracket 22, a lower plate 23, a support plate 24, a servo motor 25 and a ball screw assembly 26 in addition to the above-mentioned platform 21; the bracket 22 is fixed on the ground, a workbench or other positions, or is directly installed in the strength machine frame 1; the lower plate 23 is lifted and matched (i.e., moves along the axial direction of the center hole 11) in the bracket 22; each side of the lower plate 23 is connected to the platform 21 through the support plate 24; the servo motor 25 is relatively fixed to the bracket 22, and its output end is connected to the lower plate 23 through the ball screw assembly 26 for driving the lower plate 23 to move. Then, through the output of the servo motor 25, the power can be transmitted to the lower plate 23 through the ball screw assembly 26, and the lower plate 23 is lifted and moved along the vertical direction due to the guidance of the levers of the bracket 22, thereby driving the platform 21 to lift and move through the support plate 24, so that the height difference between the platform 21 and the fixed block 31 can be changed, so that the detection device of the utility model can be compatible with the test of the top cover and the bottom cover.
[0040] In some embodiments of the present invention, the end cap fixing modules 3 are arranged around the center line of the center hole 11 at equal angles, so that when multiple end cap fixing modules 3 cooperate with the platform 21 to clamp the end cap a at the same time, the circumferential force of the end cap a is more balanced. In the first and second embodiments of the present invention, the number of the end cap fixing modules 3 is 3.
[0041] In some embodiments of the utility model, the end cover fixing module 3 includes, in addition to the above-mentioned fixing block 31, a first driving device 32, a front plate 33 and a fixing plate 34; the first driving device 32 is installed on the strength machine frame 1, and its output shaft is arranged along the radial direction of the center hole 11; the front plate 33 is vertically connected to the front end of the output shaft of the first driving device 32; the rear end of the fixing plate 34 is vertically connected to the upper end of the front plate 33; the fixing block 31 is connected to the lower surface of the front end of the fixing plate 34. By designing the front plate 33, the fixing plate 34 can be lifted to a certain height to avoid the fixed block 31 being installed too close to the upper surface of the strength machine frame 1, and a larger space can be formed between the fixed block 31 and the platform 21 to place the sample to be tested.
[0042] Furthermore, the above-mentioned first driving device 32 is a three-axis cylinder. The use of the three-axis cylinder can make the moving direction of the front plate 33 more stable and more accurate, thereby ensuring that the first arc surface 311 of the fixed block 31 can be close to the circumference of the filter material b or the center tube c, and then can more closely cooperate with the platform 21 to clamp the end cover a.
[0043] At the same time, the front end of the fixing plate 34 is provided with a second curved surface 341 matching the first curved surface 311. The second curved surface 341 provides a structure for the fixing plate 34 to give way to the filter material b or the peripheral surface of the central tube c, so that the fixing block 31 and the front end of the fixing plate 34 have a larger contact area and a higher connection strength.
[0044] In some embodiments of the utility model, a screw 41 for detachably connecting the pull-up module 5 is provided on the moving end 4 of the strength machine, so that the pull-up module 5 can be disassembled and assembled with the moving end of the strength machine by means of a threaded connection, which makes disassembly and assembly more convenient and easy to operate.
[0045] See also Figures 1 to 4 , showing the first embodiment of the utility model.
[0046] In the first embodiment, the pull-up module 5 includes a mounting plate 51, a vertical plate 52, a second driving device 53 and a clamping plate 54; the mounting plate 51 is detachably connected to the moving end 4 of the strength machine, such as being threadedly connected to the screw 41 of the moving end 4 of the strength machine as described above; a plurality of vertical plates 52 are connected to the lower surface of the mounting plate 51 at equal angles; the second driving device 53 is mounted on the outer side of the vertical plate 52, and its output shaft is passed through the vertical plate 52; the clamping plate 54 is arranged on the inner side of the vertical plate 52 and is connected to the output shaft of the second driving device 53; under the drive of the second driving device 53, the clamping plate 54 can cooperate with the vertical plate 52 to perform an openable and closable clamping action, so that it can be used to clamp the filter material b.
[0047] Furthermore, the second driving device 53 is a three-axis cylinder. The use of the three-axis cylinder can make the moving direction of the clamping plate 54 more stable and more accurate, so as to more closely cooperate with the vertical plate 52 to clamp the filter material b. In this embodiment, the three-axis cylinders are provided at both ends of the outer side of the vertical plate 52, and the clamping plate 54 is driven by two three-axis cylinders to improve the clamping force.
[0048] At the same time, the above-mentioned mounting plate 51 is provided with a through hole 511 corresponding to the gap between the vertical plate 52 and the clamping plate 54. The through hole 511 is used to pass the filter material b. The filter material b can be cut into a longer part for clamping by the vertical plate 52 and the clamping plate 54, so that the connection between the filter material b and the pull-up module 5 is more stable, avoiding the filter material b from loosening from the pull-up module 5 during the pulling process.
[0049] Secondly, at least one of the opposite surfaces of the vertical plate 52 and the clamping plate 54 is bonded with a layer of foam 55, and the foam 55 can increase the friction between the pulling plate 52, the clamping plate 54 and the filter material b, so as to achieve the purpose of clamping the filter material b more firmly.
[0050] See also Figure 1, the first embodiment is mainly used to test the connection strength between the end cover a and the filter material b. Specifically, in the first embodiment, the bottom cover connected with the filter material b is used as a sample: after the sample to be tested is placed on the platform 21 of the lifting module 2, the platform 21 rises or falls to a suitable position; then the fixing blocks 31 in each end cover fixing module 3 extend and respectively abut against the circumference of the central tube c to place the displacement of the sample to be tested in the horizontal direction; the upper end of the filter material b is cut into three parts, and respectively inserted into the through holes 511 of the mounting plate 51, and the second driving device 53 is controlled to retract the clamping plate 54 to clamp and fix the upper end of the filter material b; finally, the moving end 4 of the strength machine is started to lift upward until the end cover a and the filter material b fall off, and the maximum pressure in this process is recorded.
[0051] See also Figure 5 and Figure 6 , shows a second embodiment of the utility model, and the difference between the second embodiment and the first embodiment mainly lies in the pull-up module 5.
[0052] In the second embodiment, the pull-up module 5 includes a cylinder 56 that is detachably connected to the moving end 4 of the strength machine. The outer diameter of the cylinder 56 matches the inner diameter of the central tube c of the sample to be tested (the tolerance between the two is controlled between ±1mm), and the circumference of the cylinder 56 is provided with a circle of several positioning holes 561, and the positioning holes 561 are used to lock screws. During the test, several screws can be passed through the holes on the circumference of the central tube c and locked into the positioning holes 561, so that the end of the central tube c is integrated with the cylinder 56, and a higher and more stable connection strength is provided by mechanical connection; the roundness of the central tube c can be effectively guaranteed by the cylinder 56, the uniformity of the pulling force applied to the central tube c is improved, and it is greatly guaranteed that the central tube c cannot be greatly deformed during the lifting process of the moving end 4 of the strength machine.
[0053] See also Figure 5 The second embodiment is mainly used to test the connection strength between the end cover a and the center tube c. Specifically, in the second embodiment, the bottom cover connected with the center tube c is used as a sample: after the sample to be tested is placed on the platform 21 of the lifting module 2, the platform 21 rises or falls to a suitable position; then the fixing blocks 31 in each end cover fixing module 3 extend and respectively abut against the circumference of the center tube c to place the displacement of the sample to be tested in the horizontal direction; then the center tube c and the cylinder 56 are fixed by a number of screws; finally, the moving end 4 of the strength machine is started to lift upward until the end cover a and the center tube c fall off, and the maximum pressure in this process is recorded.
[0054] Through the above scheme, the utility model can fit the circumference of the filter material b or the center tube c when moving radially through the fixed block 31 which can be radially moved and has the first arc surface 311, and cooperate with the axially movable platform 21 to clamp the end cover a, which not only achieves the purpose of fixing the end cover a, but also can adapt to different end cover thicknesses and filter cartridge diameters for horizontal and vertical fixation, so that the detection equipment is compatible with most filter cartridges on the market; multiple end cover fixing modules 3 cooperate with the same platform 21 to clamp and fix the end cover a, the circumferential force of the end cover a is more balanced, and the detection effect is more accurate; the pull-up module 5 and the moving end 4 of the strength machine are detachable, and can be replaced with appropriate types according to the detection requirements, so that a single detection equipment can realize multiple detection methods, thereby achieving the purposes of reducing equipment costs, simplifying operations, and improving efficiency.
[0055] 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 end cover connection strength detection device, characterized in that: It includes a lifting module and an end cover fixing module arranged on the frame of the strength machine, and a pull-up module arranged on the moving end of the strength machine; The frame of the strength machine is provided with a central hole; The lifting module is arranged in the central hole, and has a platform movable along the axial direction of the central hole; A plurality of end cover fixing modules are arranged around the central hole, each end cover fixing module having a fixing block movable along the radial direction of the central hole, each fixing block being provided with a first arc surface facing the central hole; The moving end of the strength machine is located above the central hole and can move along the axial direction of the central hole; The pull-up module is detachably mounted on the moving end of the strength machine and is used for detachably connecting the filter material or the central tube of the sample to be tested.
2. The filter cartridge end cap connection strength detection device according to claim 1, characterized in that: The lifting module also includes a bracket, a lower plate, a support plate, a servo motor and a ball screw assembly; the lower plate is lifted and fitted in the bracket; each side of the lower plate is connected to the platform through the support plate; the servo motor is relatively fixed to the bracket, and its output end is transmission-connected to the lower plate through the ball screw assembly.
3. The filter cartridge end cap connection strength detection device according to claim 1, characterized in that: The end cover fixing modules are arranged around the center line of the central hole at equal angles and intervals around the central hole.
4. The filter cartridge end cap connection strength detection device according to claim 1, characterized in that: The end cover fixing module also includes a first driving device, a front plate and a fixing plate; the first driving device is installed on the strength machine frame, and its output shaft is arranged along the radial direction of the center hole; the front plate is vertically connected to the front end of the output shaft of the first driving device; the rear end of the fixing plate is vertically connected to the upper end of the front plate; the fixing block is connected to the lower surface of the front end of the fixing plate.
5. The filter cartridge end cap connection strength detection device according to claim 4, characterized in that: The first driving device is a three-axis cylinder.
6. The filter cartridge end cap connection strength detection device according to claim 4, characterized in that: The front end of the fixing plate is provided with a second curved surface matching the first curved surface.
7. The filter cartridge end cap connection strength detection device according to claim 1, characterized in that: A screw rod for detachably connecting the pull-up module is arranged on the moving end of the strength machine.
8. The filter cartridge end cap connection strength detection device according to any one of claims 1 to 7, characterized in that: The pull-up module includes a mounting plate, a vertical plate, a second driving device and a clamping plate; the mounting plate is detachably connected to the moving end of the strength machine; a plurality of vertical plates are connected to the lower surface of the mounting plate at equal angles; the second driving device is installed on the outer side of the vertical plate, and its output shaft passes through the vertical plate; the clamping plate is arranged on the inner side of the vertical plate and is connected to the output shaft of the second driving device.
9. The filter cartridge end cap connection strength detection device according to claim 8, characterized in that: The second driving device is a three-axis cylinder; the mounting plate is provided with a through hole corresponding to the gap between the vertical plate and the clamping plate; at least one of the opposite surfaces of the vertical plate and the clamping plate is bonded with a layer of foam.
10. The filter cartridge end cover connection strength detection device according to any one of claims 1 to 7, characterized in that: The pull-up module includes a cylinder detachably connected to the moving end of the strength machine, the outer diameter of the cylinder matches the inner diameter of the central tube of the sample to be tested, and a circle of several positioning holes are arranged on the circumference of the cylinder, and the positioning holes are used to lock screws.