CN212159389U - Digital pendulum tear tester - Google Patents
Digital pendulum tear tester Download PDFInfo
- Publication number
- CN212159389U CN212159389U CN202020342438.9U CN202020342438U CN212159389U CN 212159389 U CN212159389 U CN 212159389U CN 202020342438 U CN202020342438 U CN 202020342438U CN 212159389 U CN212159389 U CN 212159389U
- Authority
- CN
- China
- Prior art keywords
- swing arm
- case
- weight
- cutter
- tear tester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the field of testing material tension, in particular to a digital pendulum tear tester, which comprises a case, a driving device, a clamp assembly, a cutter assembly and a displacement sensor, wherein the side surface of the case is provided with a swing arm rotating relatively, the swing arm is provided with weights, the driving device is arranged in the case, and the output end of the driving device is provided with a swing arm support rod penetrating out of the case and bearing the swing arm; the clamp assemblies are respectively fixed on the case and the swing arm, a gap is formed between the clamp assemblies, the cutter assembly is arranged in the gap, and the detection end of the displacement sensor corresponds to the weight; the distance between the current outer contour of the weight and the displacement sensor is detected through the displacement sensor, so that the measuring efficiency is greatly improved compared with a traditional tester, and the problem of short service life of a weighing sensor of the traditional tester in the background art is solved.
Description
Technical Field
The utility model relates to a test material tension field indicates a tester is torn to digital pendulum especially.
Background
After the textile, paper, rubber sheet and other sheet materials are prepared, the tear strength of the textile, paper, rubber sheet and other sheet materials needs to be detected. With the progress of society, the tearing strength tester detects mechanical self-detection in an original manual tearing mode. However, the result of the manual tear detection method is low in accuracy, low in detection efficiency and large in labor amount. The existing mechanical detection equipment clamps a sample through a clamp device, two forces in opposite directions are applied to the sample to tear the sample, and the tearing strength of the sample is converted by detecting the two applied forces.
The patent No. 201610485202.9 has been found to be a digital tear strength tester, which comprises an energy conversion mechanism for converting gravitational potential energy into kinetic energy, a clamping mechanism for clamping a test sample, and a measuring mechanism for measuring energy loss; the energy conversion mechanism comprises a swinging device and a test weight; the test weight is hung on the swinging device, and the swinging device swings to convert the gravitational potential energy of the test weight into the kinetic energy of the swinging device; the clamping mechanism comprises a movable part and a fixed part; the movable part of the clamping mechanism is connected with the swinging device, and the fixed part is fixed on a frame of the tester; under the action of the swinging device, the movable part and the fixed part of the clamping mechanism are separated, so that a test sample clamped on the movable part and the fixed part at the same time is torn; the measuring mechanism comprises an angle encoder, and the angle encoder is connected with the swinging device; the oscillating device oscillates and the angle encoder reads the angle variation. The invention has the advantages of simple structure, simple operation, small test error, high test precision and test efficiency and the like;
however, such a tester has the following problems:
the gravity detection process is easy to cause damage to the weighing sensor, specifically, the force acting on the right swing arm is transmitted to the weighing sensor through the electromagnetic extension rod and the glass beads in sequence, and the weight of the weight is read and weighed through the weighing sensor and is used for judging the type of the weight;
under long-term use, the force transmitted to the load cell can damage the electronics within the load cell, resulting in a reduction in the life of the load cell.
Disclosure of Invention
In order to solve the problem, the utility model provides a tester is torn to digital pendulum aims at solving the problem that weighing sensor life reduces among the background art.
In order to achieve the above object, the utility model adopts the following technical scheme: a digital pendulum tear tester, comprising:
the side surface of the case is provided with a swing arm which rotates relatively, and weights are arranged on the swing arm;
the driving device is arranged in the case, and the output end of the driving device is provided with a swing arm supporting rod which penetrates out of the case and bears the swing arm;
the clamp assemblies are respectively fixed on the case and the swing arm, and gaps are formed between the clamp assemblies;
a cutter assembly positioned within the gap;
and the detection end of the displacement sensor corresponds to the weight.
Further, the up end of swing arm is equipped with the swing arm hand (hold), and convex forearm and postbrachium are outside the concave formation of lower extreme face of swing arm, all be equipped with the weight guide bar on forearm, the postbrachium, the weight includes calibration weight and test weight, and the weight guide bar on the forearm is established to the calibration weight cover, and the weight guide bar on the postbrachium is established to the test weight cover.
Further, the anchor clamps assembly includes push rod, cam, pulley, anchor clamps spring, fixed chuck, activity chuck, screw rod, and the both sides of pulley are equipped with the pulley spindle, the pulley spindle inlays to be established in the side of activity chuck, and the outer border of cam is equipped with the concave surface, and the cam laminating makes pulley and concave surface offset in the side of activity chuck, and the screw rod is fixed with the side of cam, and the push rod passes cam, fixed chuck, activity chuck according to the preface, and wherein, the inner of push rod outwards extends the stopper, the stopper offsets with the side of fixed chuck, and the outer end of push rod outwards extends has spring base, the anchor clamps spring housing is established on the surface of push rod to be located between spring base, the cam.
Further, the cutter assembly comprises a cutter handle, a cutter shaft and a cutter, the cutter shaft penetrates through the case and extends outwards along the axial direction of the case, the cutter handle is fixed to one end of the cutter shaft, the cutter is fixed to the other end of the cutter shaft, and the cutter is located in the gap.
Furthermore, the intersection of the rotating piece and the swing arm supporting rod is a notch, a supporting roller is arranged in the notch, and the supporting roller is abutted to the swing arm supporting rod.
Furthermore, the driving device is an electromagnet mounting seat internally provided with an electromagnet, and the electromagnet is electromagnetically connected with the swing arm supporting rod.
Furthermore, an electromagnetic brake is further arranged in the case, an output shaft hole is formed in the electromagnetic brake, and an end portion inserted in the output shaft hole is arranged in the swing arm in an inner measuring mode.
Furthermore, the device also comprises a base, the case is positioned on the base, the base is provided with a detection hole, and the displacement sensor is embedded in the detection hole.
Further, the displacement sensor is one of an ultrasonic sensor or a laser ranging sensor.
The beneficial effects of the utility model reside in that:
the utility model discloses contain displacement sensor, through the distance between displacement sensor detection current weight outline and the displacement sensor, thereby utilize ultrasonic detection's distance to judge the size of weight, through the external equipment and then obtain the model of weight, for traditional tester, measurement of efficiency obtains great promotion, simultaneously, has solved the problem that the weighing sensor life of traditional tester is low among the background art.
Drawings
Fig. 1 is a structural view of the present invention.
Fig. 2 is a structural view of the jig assembly.
Fig. 3 is a block diagram of the cutter assembly.
The reference numbers illustrate: 1-a chassis; 2-swing arm support rod; 3-a clamp assembly; 301-a cam; 302-a pulley; 303-clamp spring; 304-a fixed collet; 305-a movable chuck; 306-a screw; 307-concave surface; 5-swing arm handle; 6-forearm; 7-rear arm; 8-calibrating the weight; 9-testing weights; 11-supporting rollers; 12-a base; 13-detection holes; 1100-cutter handle; 1101-a cutter; 1102-cutter shaft.
Detailed Description
Referring to fig. 1, the technical solution of the present invention is shown and described in detail with reference to the accompanying drawings and the description. In this concrete formula embodiment, still include control panel and display screen, control panel and display screen signal connection, control panel and drive arrangement control connection, and the external equipment is the singlechip of being connected with control panel, and the singlechip is embedded to have the software of weight model data.
A digital pendulum tear tester, comprising:
the side surface of the case 1 is provided with a swing arm which rotates relatively, and weights are arranged on the swing arm;
the driving device is arranged in the case 1, and the output end of the driving device is provided with a swing arm supporting rod 2 which penetrates out of the case 1 and bears a swing arm;
the clamp assemblies 3 are respectively fixed on the case 1 and the swing arm, the clamp assemblies 3 are arranged side by side, and a gap is formed between the clamp assemblies 3 and the swing arm;
a cutter assembly positioned within the gap;
and the detection end of the displacement sensor corresponds to the weight.
The utility model discloses a theory of use as follows:
the prepared weights are pre-placed on the swing arms, the displacement sensors detect distance information between the weights and the displacement sensors and send the distance information to the control main board, and the control main board transfers corresponding numerical values to the single chip microcomputer and transfers the corresponding numerical values to the display screen; manually placing a test sample on the two clamp assemblies 3, clamping the test sample by the clamp assemblies 3, wherein the clamp assemblies 3 are respectively arranged on the case 1 and the swing arm, a wide opening is cut on the test sample along a gap by utilizing a cutter assembly, the control panel controls the driving device to enable the swing arm supporting rod 2 to be retracted into the case 1, the swing arm swings in a natural state, the clamp assemblies 3 on the clamp assemblies 3 move along the motion track of the swing arm, and the test sample is torn and separated along the wide opening, so that the purpose of measurement is fulfilled;
of course, still include the angle encoder, the angle encoder has the axis of rotation of being connected with the swing arm, and the swing arm swing in-process drives the axis of rotation of angle encoder, and on the angle encoder sent the control mainboard with the transmission information of axis of rotation, the total mass that shows the current weight by the control mainboard according to transmission shaft pivoted number of turns jointly according to displacement sensor's distance reachs the tearing force.
Furthermore, the upper end face of the swing arm is provided with a swing arm handle 5, the lower end face of the swing arm is concave inwards to form a front arm 6 and a rear arm 7 which are convex outwards, weight guide rods are arranged on the front arm 6 and the rear arm 7 respectively, the weights comprise a calibration weight 8 and a test weight 9, the calibration weight 8 is sleeved on the weight guide rod on the front arm 6, and the test weight 9 is sleeved on the weight guide rod on the rear arm 7;
it should be noted that in the experimental process, the swing arm handle 5 is manually held, the position of the swing arm handle 5 is adjusted to enable the swing arm handle 5 to move above the swing arm support rod 2, and the swing arm handle 5 is supported by the swing arm support rod 2;
it should be further noted that the front arm 6 and the rear arm 7 are designed to improve the accurate value of the test data, and a manner of correcting the swing arm is provided by the above design, specifically, a plurality of test weights 9 and calibration weights 8 are provided, wherein the range of each test weight 9 is different from each other, the calibration weight 8 corresponds to each test weight 9, and the range of each calibration weight 8 is half of the range of the corresponding test weight 9;
the specific correction process is that a front arm 6 and a rear arm 7 are respectively hung with a corresponding calibration weight 8 and a corresponding test weight 9, only one calibration weight 8 and one test weight 9 are placed in each correction process, the distance value detected by a displacement sensor is converted into a corresponding gravity value through a control main board, the gravity value is displayed by a display screen, and the value of the display screen is half of the measuring range of the test weight 9;
according to the above-mentioned correction process can learn, when the weight of test weight 9 is greater than the tearing dynamics of test sample, forearm 6 and postbrachium 7 lose balance, and the swing arm rotates thereupon, and angle encoder reads the rotation angle and the time of axis of rotation, and then calculates the angular velocity and the change of gravitational potential energy of swing arm by the control mainboard to reach test sample's tear strength, when the weight of test weight 9 is less than test sample's tearing dynamics promptly, the swing arm remains motionless.
Further, the clamp assembly 3 includes a push rod, a cam 301, a pulley 302, a clamp spring 303, a fixed chuck 304, a movable chuck 305, and a screw 306, wherein shafts of the pulley 302 are disposed on two sides of the pulley 302, the shafts of the pulley 302 are embedded in the side surface of the movable chuck 305, a concave surface 307 is disposed on the outer edge of the cam 301, the cam 301 is attached to the side surface of the movable chuck 305 to enable the pulley 302 to abut against the concave surface 307, the screw 306 is fixed to the side surface of the cam 301, and the push rod sequentially passes through the cam 301, the fixed chuck 304, and the movable chuck 305, wherein a limiting block extends outwards from the inner end of the push rod, abuts against the side surface of the fixed chuck 304, a spring base 12 extends outwards from the outer end of the push rod, and the clamp spring 303 is sleeved on the surface of the push rod and is disposed;
the specific clamping process is that after a test sample is placed between the fixed chuck 304 and the movable chuck 305, the screw 306 is broken off to rotate the cam 301, the cam 301 has a concave surface 307, and during the rotation process, the surface in contact with the pulley 302 is changed from the concave surface 307 into a plane, so that the movable chuck 305 is pushed to advance towards the fixed chuck 304, and the clamping of the test sample is completed, wherein the propelling force is provided by the clamp spring 303; the screw 306 is rotated correspondingly, so that the clamping of the test sample can be released.
Further, the cutter assembly includes a cutter handle 1100, a cutter shaft 1102 and a cutter 1101, the cutter shaft 1102 penetrates through the chassis 1 and extends outward along the axial direction thereof, the cutter handle 1100 is fixed to one end of the cutter shaft 1102, the cutter 1101 is fixed to the other end of the cutter shaft 1102, and the cutter 1101 is located in the gap; specifically, the cutter handle 1100 is rotated to rotate the cutter shaft 1102 to drive the cutter 1101 to rotate, so that the cutter 1101 cuts the test sample, and the test sample forms a wide mouth.
Furthermore, the intersection of the rotating piece and the swing arm support rod 2 is a gap, a support roller 11 is arranged in the gap, and the support roller 11 is abutted against the swing arm support rod 2; its aim at reduces the friction between swing arm bracing piece 2 and the swing arm, reduces because of frictional force to the produced error of swing arm whereabouts time, heightens the precision of test to can also reduce the wearing and tearing to swing arm bracing piece 2.
Furthermore, the driving device is an electromagnet mounting seat internally provided with an electromagnet, and the electromagnet is electromagnetically connected with the swing arm supporting rod 2;
it should be noted that the swing arm support rod 2 is made of a solid metal material, and the electromagnet generates magnetic force after being electrified, so that the swing arm support rod 2 is contracted in the case 1, and the swing arm falls down after losing a support point, and a tearing test is performed;
wherein, be equipped with the electro-magnet mount pad of electro-magnet for prior art, consequently no longer give unnecessary details to its structure.
Furthermore, an electromagnetic brake is arranged in the case 1, an output shaft hole is formed in the electromagnetic brake, and an end part inserted in the output shaft hole is arranged in the swing arm; its aim at makes the swing arm of accomplishing the test obtain an opposite resistance, brakes the swing arm, specifically, electromagnetic braking ware generates a magnetic field, and the swing arm is solid metal material preparation, therefore swing in-process swing arm can last the cutting magnetic induction line, the inside vortex that generates of swing arm, this vortex and magnetic field interact form braking torque.
Further, the ultrasonic testing machine further comprises a base 12, the case 1 is located on the base 12, a detection hole 13 is formed in the base 12, and the ultrasonic sensor is embedded in the detection hole 13; by adopting the scheme, the base 12 has the function of fixing the ultrasonic sensor, limits the position of the case 1, and ensures that the test weight 9 can be detected by the ultrasonic sensor every time after being replaced.
Further, the displacement sensor is one of an ultrasonic sensor or a laser ranging sensor.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (9)
1. A digital pendulum tear tester, comprising:
the side surface of the case is provided with a swing arm which rotates relatively, and weights are arranged on the swing arm;
the driving device is arranged in the case, and the output end of the driving device is provided with a swing arm supporting rod which penetrates out of the case and bears the swing arm;
the clamp assemblies are respectively fixed on the case and the swing arm, and gaps are formed between the clamp assemblies;
a cutter assembly positioned within the gap;
and the detection end of the displacement sensor corresponds to the weight.
2. The digital pendulum tear tester of claim 1, wherein: the up end of swing arm is equipped with the swing arm hand (hold), convex forearm and postbrachium outside the lower extreme face indent of swing arm formed, all be equipped with the weight guide bar on forearm, the postbrachium, the weight includes calibration weight and test weight, and the weight guide bar on the forearm is established to the calibration weight cover, and the weight guide bar on the postbrachium is established to the test weight cover.
3. The digital pendulum tear tester of claim 1, wherein: the anchor clamps assembly includes push rod, cam, pulley, anchor clamps spring, fixed chuck, activity chuck, screw rod, and the both sides of pulley are equipped with the pulley spindle, the pulley spindle inlays to be established in the side of activity chuck, and the outside border of cam is equipped with the concave surface, and the cam laminating makes pulley and concave surface offset in the side of activity chuck, and the screw rod is fixed with the side of cam, and the push rod passes cam, fixed chuck, activity chuck according to the preface, and wherein, the inner of push rod outwards extends the stopper, the stopper offsets with the side of fixed chuck, and the outer end of push rod outwards extends has spring base, the anchor clamps spring housing is established on the surface of push rod to be located between spring base, the cam.
4. The digital pendulum tear tester of claim 1, wherein: the cutter assembly comprises a cutter handle, a cutter shaft and a cutter, the cutter shaft penetrates through the case and extends outwards along the axial direction of the case, the cutter handle is fixed with one end of the cutter shaft, the cutter is fixed with the other end of the cutter shaft, and the cutter is located in the gap.
5. The digital pendulum tear tester of claim 2, wherein: the crossing department that rotates the piece and swing arm bracing piece is the breach, is equipped with the supporting roller in the breach, the supporting roller offsets with the swing arm bracing piece.
6. The digital pendulum tear tester of claim 1, wherein: the driving device is an electromagnet mounting seat internally provided with an electromagnet, and the electromagnet is electromagnetically connected with the swing arm supporting rod.
7. The digital pendulum tear tester of claim 1, wherein: an electromagnetic brake is further arranged in the case, an output shaft hole is formed in the electromagnetic brake, and the end portion inserted in the output shaft hole is arranged in the swing arm in an inner measuring mode.
8. The digital pendulum tear tester of claim 1, wherein: the displacement sensor is embedded in the detection hole.
9. The digital pendulum tear tester of claim 1, wherein: the displacement sensor is one of an ultrasonic sensor or a laser ranging sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342438.9U CN212159389U (en) | 2020-03-18 | 2020-03-18 | Digital pendulum tear tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020342438.9U CN212159389U (en) | 2020-03-18 | 2020-03-18 | Digital pendulum tear tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212159389U true CN212159389U (en) | 2020-12-15 |
Family
ID=73715229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020342438.9U Active CN212159389U (en) | 2020-03-18 | 2020-03-18 | Digital pendulum tear tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212159389U (en) |
-
2020
- 2020-03-18 CN CN202020342438.9U patent/CN212159389U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105136364A (en) | Stabilization platform movement ring eccentric torque measuring method | |
| CN201575899U (en) | Resonance type crankshaft bending fatigue tester based on strain control principle | |
| CN212159389U (en) | Digital pendulum tear tester | |
| US2475684A (en) | Weighing scales | |
| US7089806B2 (en) | Device and method for measuring torque on an electric motor | |
| JP3438333B2 (en) | Dynamic balance testing machine and its measuring method | |
| CN112393832B (en) | Thimble type micro-impulse applying device for micro-impulse testing mechanism | |
| CN115183941B (en) | Rotor dynamic balance gravity center measuring device | |
| US6405595B1 (en) | Apparatus for measuring torsional stiffness of a golf shaft | |
| CN210981458U (en) | Weighing device | |
| CN105910907B (en) | A kind of digital tearing strength test instrument | |
| CN113567017B (en) | Measuring mechanism for measuring static moment of object | |
| CN210625813U (en) | Pressure buffer mechanism for belt weigher | |
| CN201611244U (en) | Detection device for detecting position movement of part | |
| CN208818151U (en) | A kind of external ball cage axiality detection device | |
| CN107764470B (en) | Lever type mechanical standard machine | |
| JP4270556B2 (en) | Variable speed three-point bending impact test equipment | |
| CN102419229A (en) | Bearing pedestal starting moment measuring apparatus | |
| CN202329891U (en) | Starting torque measuring device for bearing seat | |
| CN218412120U (en) | Rockwell hardness tester for touch screen | |
| CN111289390A (en) | Cantilever beam impact testing machine | |
| CN214427203U (en) | Testing device | |
| CN215004670U (en) | High-speed rotation bending fatigue testing machine | |
| CN214539027U (en) | Young modulus experiment instrument capable of detecting accurately | |
| CN218994703U (en) | Spring check out test set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 floor 11, R & D building, wandaiheng high tech Industrial Park, No. 171, gongchang Road, Zhenmei community, Xinhu street, Guangming District, Shenzhen, Guangdong Province Patentee after: SHENZHEN REFOND EQUIPMENT CO.,LTD. Address before: 6 / F, building J, Shifeng Science Park, gongminglou village, Guangming District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN REFOND EQUIPMENT CO.,LTD. |
|
| CP02 | Change in the address of a patent holder |