CN212989045U - Tensile testing machine with protection function - Google Patents
Tensile testing machine with protection function Download PDFInfo
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- CN212989045U CN212989045U CN202021993980.7U CN202021993980U CN212989045U CN 212989045 U CN212989045 U CN 212989045U CN 202021993980 U CN202021993980 U CN 202021993980U CN 212989045 U CN212989045 U CN 212989045U
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Abstract
The utility model relates to a tensile testing machine with safeguard function, it includes base and fixture, be equipped with two stands on the base, crossbeam fixed connection is passed through to the one end that the base was kept away from to the coexistence post, vertical sliding has the horizontal pole between the coexistence post, be equipped with the actuating mechanism who is used for driving the horizontal pole to slide in the stand, fixture includes can dismantle the first anchor clamps of being connected with the crossbeam and can dismantle the second anchor clamps of being connected with the horizontal pole, be equipped with safeguard mechanism on the base, safeguard mechanism includes protection component and the fixed cover that is fixed in on the base, protection component slides the fly leaf and the shrink board of being connected along vertical direction including all with fixed cover open-ended one side, it has the holding tank that holds the shrink board to open on the base, be equipped with the locking subassembly that is used for locking the fly leaf to slide on the fixed cover, be equipped with the locking piece that is used. This application has the effect that the piece bursts out and causes the condition of potential safety hazard to the testing personnel when reducing the sample and being broken.
Description
Technical Field
The application relates to the field of building material quality detection, in particular to a tensile testing machine with a protection function.
Background
The tension tester is a mechanical stress tester for mechanical property tests such as static load, tension, compression, bending, shearing, tearing, peeling and the like of instruments and equipment aiming at various materials, different tests are completed by replacing different jigs, and the tension tester is mainly used for detecting the quality of building materials in the building material industry.
At present, chinese utility model patent that bulletin number is CN207197944U discloses an omnipotent tensile testing machine, including base and the portal frame of setting on the base, the base upper surface be equipped with undersetting platform, can dismantle connection structure through lower on the undersetting platform and be connected with down the release force frock, be equipped with the push up release force frock that is located down release force frock top in the portal frame, the push up release force frock can be connected with the crossbeam through last detachable connection structure, the portal frame top be equipped with lift actuating mechanism and lift actuating mechanism that the crossbeam is connected can the driving beam go up and down in vertical direction, be equipped with crossbeam lift limit structure between the one end of crossbeam and portal frame. According to different test requirements of the sample, the sample is placed between the upper pushing-off force tool and the lower pushing-off force tool, the limit distance suitable for the upper pushing-off force tool and the lower pushing-off force tool is adjusted, the lifting driving mechanism drives the cross beam and the upper pushing-off force tool to move in the vertical direction within the set range of the lifting limit structure of the cross beam, and the sample is tested.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the testing machine is used for testing, some tests need to break a tested sample to measure certain data, the tested sample is fixed between two clamps in the testing process, and when the sample is broken, fragments of some samples are easy to splash and burst out, so that potential safety hazards are caused to testing personnel.
SUMMERY OF THE UTILITY MODEL
In order to reduce the condition that the piece bursts out and causes the potential safety hazard to the tester when the sample is broken by the stretch-breaking, this application provides a tensile testing machine with safeguard function.
The application provides a tensile testing machine with safeguard function adopts following technical scheme:
the utility model provides a tensile testing machine with safeguard function, includes the base and is used for the fixture of centre gripping sample, be provided with two hollow stands along vertical direction on the base, and two crossbeam fixed connection is passed through to the one end that the base was kept away from to the stand, two it is connected with the horizontal pole to slide along vertical direction between the stand, be provided with the actuating mechanism who is used for driving the horizontal pole to slide in the stand, fixture includes first anchor clamps and second anchor clamps, first anchor clamps can be dismantled with one side that the horizontal pole is close to the horizontal pole and be connected, the second anchor clamps can be dismantled with one side that the horizontal pole is close to the horizontal pole and be connected, be provided with safeguard mechanism on the base, safeguard mechanism includes protection component and one end open-ended fixed cover, fixed cover is along vertical direction fixed connection on the base, safeguard component includes fly leaf and, The shrink plate all slides along vertical direction with fixed cover open-ended one side and is connected, offer the holding tank that is used for holding the shrink plate on the base, fixed covering is provided with the locking subassembly that is used for locking the fly leaf distance of sliding, be provided with the locking piece that is used for locking the shrink plate distance of sliding on the base, but the fly leaf is close to one side butt each other with the shrink plate.
By adopting the technical scheme, when the testing machine is used, firstly, the movable plate slides along the vertical direction, the movable plate is far away from the contraction plate, the sliding distance of the movable plate is locked by the locking assembly, the driving mechanism is started to drive the cross rod to drive the second clamp to slide along the vertical direction, when the movable plate slides to the specified initial position of sample stretching, the driving mechanism is suspended, one end of the sample is clamped by the first clamp, the other end of the sample is clamped by the second clamp, after the sample is clamped, the locking assembly is controlled not to lock the movable plate, the movable plate slides to the position abutted against the contraction plate, the driving mechanism is started, the driving mechanism drives the cross rod to slide along the vertical direction, so that one end of the sample clamped by the second clamp slides along with the second clamp, and the sample; the protection assembly is divided into the movable plate and the contraction plate, so that the size of the movable plate is reduced, and the occupied space of the movable plate after the movable plate slides to the locking assembly and is locked is reduced; the movable plate is connected with the fixed cover in a sliding mode, so that the working personnel can conveniently install and detach the sample, the locking assembly is convenient to lock the sliding distance of the movable plate, the movable plate is abutted against the contraction plate, the movable plate, the contraction plate and the fixed cover the test space between the two columns, and the situation that the test personnel are subjected to potential safety hazards due to the fact that chips are broken when the sample is broken is reduced.
Optionally, a sliding groove is formed in the side wall of the opening of the fixed cover in the vertical direction, and the movable plate and the contraction plate are connected with the sliding groove in a sliding mode.
Through adopting above-mentioned technical scheme, the connection that slides of fly leaf, shrink board and sliding tray has realized the slip of fly leaf, shrink board and fixed cover and has been connected.
Optionally, the locking subassembly includes movable block and cutting ferrule, cutting ferrule fixed connection covers on fixed, the movable block slides with fixed cover and is connected, and the direction of sliding is for being close to or keeping away from the direction of cutting ferrule, works as when the movable block is in with the cutting ferrule joint, the movable block is located the orbit of sliding of fly leaf to be close to one side butt of shrink board with the fly leaf.
Through adopting above-mentioned technical scheme, when sliding the fly leaf to near movable block position, to the direction that is close to the cutting ferrule movable block that slides, until movable block and cutting ferrule joint for one side and the movable block butt that the fly leaf is close to the shrink plate have locked the distance of sliding of fly leaf promptly, and the staff of being convenient for carries out the installation and the dismantlement of sample.
Optionally, the fixed cover has seted up the spout along the direction of being close to or keeping away from the cutting ferrule, movable block fixedly connected with sliding block, be provided with reset spring along the orientation of seting up of spout in the spout, reset spring's one end and spout keep away from the lateral wall fixed connection of fly leaf, the other end and sliding block fixed connection the movable block and cutting ferrule joint under reset spring's the elastic force effect.
Through adopting above-mentioned technical scheme, when fly leaf and shrink board butt, the fly leaf has restricted sliding of movable block, and reset spring is compressed, and when the fly leaf slides, reset spring when not atress, under reset spring's elastic force effect, movable block and cutting ferrule joint have realized the locking to the fly leaf distance of sliding.
Optionally, the movable plate and the contraction plate are both fixedly connected with handles.
Through adopting above-mentioned technical scheme, the staff of being convenient for of setting up of handle slides the operation to fly leaf and shrink board.
Optionally, the movable plate and the contraction plate are transparent plates.
Through adopting above-mentioned technical scheme, the setting of transparent plate is convenient for the staff to observe the test process of sample at any time.
Optionally, actuating mechanism includes two sliders, two lead screws and synchronous drive subassembly, two the lead screw all rotates with the stand that corresponds to be connected, the cavity has been seted up to the base, the synchronous drive subassembly sets up in the cavity to be used for driving two lead screws and rotate in step, two the slider all with the lead screw threaded connection that corresponds, and slide along vertical direction with the stand that corresponds and be connected, one of them the slider is with the one end fixed connection of horizontal pole, another the other end fixed connection of slider and horizontal pole.
Through adopting above-mentioned technical scheme, two lead screws of synchronous drive subassembly drive rotate in step for two sliders slide in step, slide in step in order to realize the horizontal pole both ends and slide in step, improved the stability that the horizontal pole slided.
Optionally, the synchronous driving assembly comprises a first belt pulley, a second belt pulley, a belt and a driving motor, the first belt pulley is connected with the second belt pulley through belt transmission, an output shaft of the driving motor is connected with one of the first belt pulley and one of the lead screws in a coaxial and fixed mode through the first belt pulley, the second belt pulley is connected with the other lead screw in a coaxial and fixed mode, and the contact switch is electrically connected with the driving motor.
Through adopting above-mentioned technical scheme, driving motor drives first belt pulley and rotates, and under belt drive, the second belt pulley also rotates thereupon, has realized the synchronous rotation of two lead screws, and contact switch is connected with driving motor electricity for contact switch can control driving motor's closing, stops the drive to the horizontal pole in order to realize actuating mechanism.
Optionally, one end of one of the columns, which is close to the base, is provided with a contact switch, the contact switch is in contact connection with the cross bar, and the contact switch is electrically connected with the driving motor.
By adopting the technical scheme, after the contact switch is contacted with the cross rod, the driving motor is controlled to stop, so that the phenomenon that the cross rod continuously slides to collide other structures of the testing machine due to negligence of workers is reduced, and mechanical damage is caused.
Optionally, a pressure mechanism is arranged between the cross rod and the base, the pressure mechanism comprises two pressure plates, one of the pressure plates is detachably connected with one side of the cross rod close to the base, and the other pressure plate is detachably connected with one side of the base close to the cross rod.
Through adopting above-mentioned technical scheme, place the sample on the pressure disk of being connected with the base, start actuating mechanism, the control horizontal pole slides, and the sample is compressed between two pressure disks for the test machine can be done the test in the aspect of the compressive capacity of material under the condition of tool need not changed, has saved the manpower.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the movable plate is connected with the fixed cover in a sliding mode, so that a worker can conveniently install and detach a sample, the locking assembly is convenient for locking the sliding distance of the movable plate, when the movable plate is abutted against the contraction plate, the movable plate, the contraction plate and the fixed cover the test space between the two upright posts, and the situation that potential safety hazards are caused to the tester due to the fact that chips are broken when the sample is broken is reduced;
2. when the movable plate slides to a position near the movable block, the movable block slides towards the direction close to the clamping sleeve until the movable block is clamped with the clamping sleeve, so that one side of the movable plate close to the contraction plate is abutted against the movable block, namely the sliding distance of the movable plate is locked, and a worker can conveniently mount and dismount a sample;
3. place the sample on the pressure disk of being connected with the base, start actuating mechanism, the control horizontal pole slides, and the sample is compressed between two pressure disks for the test machine can be done the test in the aspect of the compressive capacity of material under the condition of tool need not changed, has saved the manpower.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic diagram of a portion of an embodiment of the present application;
FIG. 3 is an exploded view of the latch assembly of an embodiment of the present application to illustrate the attachment of the latch assembly to the stationary housing;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Description of reference numerals: 100. a base; 110. a column; 111. a sliding groove; 120. a cross beam; 130. accommodating grooves; 140. a cavity; 150. a locking member; 200. a clamping mechanism; 210. a first clamp; 220. a second clamp; 300. a cross bar; 400. a drive mechanism; 410. a slider; 420. a lead screw; 430. a synchronous drive assembly; 431. a first pulley; 432. a second pulley; 433. a belt; 434. a drive motor; 500. a protection mechanism; 510. a guard assembly; 511. a movable plate; 512. a shrink plate; 513. a handle; 520. a fixed cover; 521. a sliding groove; 522. a chute; 523. a return spring; 530. a locking assembly; 531. a movable block; 532. a card sleeve; 533. a slider; 600. a contact switch; 700. a pressure mechanism; 710. and (7) pressing a plate.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses tensile testing machine with safeguard function. Referring to fig. 1, the tensile testing machine includes a base 100, two hollow upright columns 110 are welded to the base 100 along a vertical direction, and one ends of the two upright columns 110 far away from the base 100 are welded by a cross beam 120.
Referring to fig. 1 and 2, a cross bar 300 is disposed between two upright columns 110, sliding grooves 111 are formed in opposite sides of the two upright columns 110 in the vertical direction, the cross bar 300 is connected with the sliding grooves 111 on the two upright columns 110 in a sliding manner, and a driving mechanism 400 for driving the cross bar 300 to slide is disposed in the upright columns 110.
The driving mechanism 400 comprises two sliding blocks 410 and two lead screws 420, wherein the two lead screws 420 are rotatably connected with the corresponding upright posts 110, the two sliding blocks 410 are in threaded connection with the corresponding lead screws 420 and are connected with the corresponding upright posts 110 in a sliding manner along the vertical direction, one of the sliding blocks 410 is welded with one end of the cross rod 300, and the other sliding block 410 is welded with the other end of the cross rod 300.
The driving mechanism 400 further includes a synchronous driving assembly 430, the base 100 is provided with a cavity 140, and the synchronous driving assembly 430 is disposed in the cavity 140 and is used for driving the two lead screws 420 to rotate synchronously.
The synchronous driving assembly 430 comprises a first belt pulley 431, a second belt pulley 432, a belt 433 and a driving motor 434, wherein the first belt pulley 431 and the second belt pulley 432 are in transmission connection through the belt 433, one of the lead screws 420 penetrates through the cavity wall of the cavity 140 and is coaxially welded with an output shaft of the driving motor 434 through the first belt pulley 431, and the other lead screw 420 penetrates through the cavity wall of the cavity 140 and is coaxially welded with the second belt pulley 432.
One end of one of the upright posts 110 close to the base 100 is provided with a contact switch 600, the contact switch 600 is in contact connection with the cross bar 300, the contact switch 600 is electrically connected with the driving motor 434, and when the contact switch 600 is in contact with the cross bar 300, the contact switch 600 controls the driving motor 434 to be turned off.
The tensile testing machine further comprises a clamping mechanism 200 for clamping the sample. The clamping mechanism 200 includes a first clamp 210 and a second clamp 220, the first clamp 210 is bolted to a side of the cross beam 120 adjacent to the cross beam 300, and the second clamp 220 is bolted to a side of the cross beam 300 adjacent to the cross beam 120.
A pressure mechanism 700 is provided between the cross bar 300 and the base 100 for compressing the sample. The pressure mechanism 700 includes two pressure plates 710, one of the pressure plates 710 is bolted to the cross bar 300 on the side adjacent to the base 100, and the other pressure plate 710 is bolted to the base 100 on the side adjacent to the cross bar 300.
Referring to fig. 1 and 3, a protection mechanism 500 is disposed on the base 100, and the protection mechanism 500 includes a protection assembly 510 and a fixing cover 520 having an open end. The fixing cover 520 is welded to the base plate 100 in a vertical direction. The shielding assembly 510 includes a movable plate 511 and a retractable plate 512, and a side of the movable plate 511 and the retractable plate 512 close to each other can abut against each other.
The base 100 is provided with a receiving groove 130 for receiving the contraction plate 512. The contraction plate 512 is slidably connected with the sliding groove 521. The base 100 is provided with a locking member 150, the locking member 150 is a locking bolt, and the locking bolt is in threaded connection with the side wall of the accommodating groove 130 and can be abutted against the contraction plate 512 to lock the sliding distance of the contraction plate 512.
Referring to fig. 1 and 4, two sliding grooves 521 with opposite openings are formed in the open side wall of the fixed cover 520 along the vertical direction, the movable plate 511 is slidably connected with the sliding grooves 521, and a locking assembly 530 for locking the sliding distance of the movable plate 511 is disposed on the fixed cover 520.
The locking assembly 530 includes a movable block 531 and a ferrule 532, and the movable block 531 is engageable with the ferrule 532. The cutting sleeve 532 is welded on the fixed cover 520, the movable block 531 is connected with the fixed cover 520 in a sliding manner, and the sliding direction is a direction close to or far away from the cutting sleeve 532.
The fixed cover 520 is provided with a sliding groove 522 along the direction close to or far away from the clamping sleeve 532, the movable block 531 is welded with a sliding block 533, a return spring 523 is arranged in the sliding groove 522 along the opening direction of the sliding groove 522, one end of the return spring 523 is welded on the side wall of the sliding groove 522 far away from the movable plate 511, and the other end of the return spring is welded with the sliding block 533.
Under the elastic force action of the return spring 523, the movable block 531 is clamped with the clamping sleeve 532, when the movable block 531 is clamped with the clamping sleeve 532, the movable block 531 is located on the sliding track of the movable plate 511, and one side of the movable plate 511, which is close to the contraction plate 512, is abutted against the movable block 531.
The embodiment of the application provides a tensile testing machine with safeguard function's implementation principle does: when a tester uses the tester to perform a test, firstly, the movable plate 511 slides along the vertical direction, so that the movable plate 511 is far away from the contraction plate 512, the movable block 531 slides towards the direction close to the sleeve 532 under the action of the elastic force of the return spring 523 until the movable block 531 is clamped with the sleeve 532, the movable plate 511 is released, and one side of the movable plate 511 close to the contraction plate 512 is abutted against the movable block 531, so as to lock the sliding distance of the movable plate 511.
The start driving motor 434 drives the first belt 433 and the second belt 433 to rotate synchronously, so that the two lead screws 420 rotate synchronously, the slider 410 drives the cross rod 300 to slide along the vertical direction, and when the cross rod slides to the initial position of the specified sample test, the driving motor 434 is suspended. The following two operating steps were selected according to the type of test:
first, when a tensile test is performed, one end of a sample is held by a first clamp 210, and the other end of the sample is held by a second clamp 220. After the sample is clamped, the movable block 531 is pushed to slide in the direction away from the clamping sleeve 532, so that the movable plate 511 can slide to abut against the contraction plate 512, and the movable plate 511, the contraction plate 512 and the fixed cover 520 cover the test space between the two upright posts 110. And starting the driving motor 434, driving the second fixture 220 to slide by the cross rod 300, and testing the sample according to the specified test conditions.
Secondly, if carry out compression test, twist the locking bolt for the locking bolt does not push against with shrink board 512, in shrink board 512 to the holding tank 130 slides, places the sample on the pressure disk 710 of being connected with base 100, and shrink board 512 to the initial position slides, screws up the locking bolt and makes locking bolt and shrink board 512 butt, with the distance of sliding of locking shrink board 512. The movable block 531 is pushed to slide in a direction away from the ferrule 532, so that the movable plate 511 can slide to abut against the contraction plate 512, and the movable plate 511, the contraction plate 512 and the fixed cover 520 cover the test space between the two columns 110. And starting the driving motor 434, driving the cross rod 300 to drive the pressure plate 710 connected with the cross rod 300 to slide until the cross rod contacts with the sample, and testing the sample according to the specified test conditions.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a tensile testing machine with safeguard function, includes base (100) and fixture (200) that are used for centre gripping sample, its characterized in that: the base (100) is provided with two hollow upright posts (110) along the vertical direction, one ends of the two upright posts (110) far away from the base (100) are fixedly connected through a cross beam (120), a cross rod (300) is connected between the two upright posts (110) in a sliding manner along the vertical direction, a driving mechanism (400) for driving the cross rod (300) to slide is arranged in each upright post (110), the clamping mechanism (200) comprises a first clamp (210) and a second clamp (220), the first clamp (210) is detachably connected with one side, close to the cross rod (300), of the cross beam (120) of the cross beam (300), the second clamp (220) is detachably connected with one side, close to the cross beam (120), the base (100) is provided with a protection mechanism (500), and the protection mechanism (500) comprises a protection component (510) and a fixed cover (520), fixed cover (520) are along vertical direction fixed connection on base (100), protection component (510) are including fly leaf (511) and shrink board (512), fly leaf (511), shrink board (512) all slide along vertical direction with fixed cover (520) open-ended one side and are connected, set up holding tank (130) that are used for holding shrink board (512) on base (100), be provided with locking component (530) that are used for locking fly leaf (511) distance of sliding on fixed cover (520), be provided with locking piece (150) that are used for locking shrink board (512) distance of sliding on base (100), but one side that fly leaf (511) and shrink board (512) are close to each other can the butt.
2. The tensile testing machine with the protection function according to claim 1, characterized in that: sliding grooves (521) are formed in the side wall of the opening of the fixed cover (520) in the vertical direction, and the movable plate (511) and the contraction plate (512) are connected with the sliding grooves (521) in a sliding mode.
3. The tensile testing machine with the protection function according to claim 2, characterized in that: locking subassembly (530) include movable block (531) and cutting ferrule (532), cutting ferrule (532) fixed connection is on fixed cover (520), movable block (531) slide with fixed cover (520) and are connected, and the direction of sliding is for being close to or keeping away from the direction of cutting ferrule (532), works as when movable block (531) and cutting ferrule (532) joint, movable block (531) are located the orbit of sliding of fly leaf (511) to be close to one side butt of shrink board (512) with fly leaf (511).
4. The tensile testing machine with the protection function according to claim 3, characterized in that: fixed cover (520) have been seted up spout (522) along the direction of being close to or keeping away from cutting ferrule (532), movable block (531) fixedly connected with sliding block (533), set up direction along spout (522) in spout (522) is provided with reset spring (523), the lateral wall fixed connection of fly leaf (511) is kept away from with spout (522) to the one end of reset spring (523), the other end and sliding block (533) fixed connection movable block (531) and cutting ferrule (532) joint under the spring action of reset spring (523).
5. The tensile testing machine with the protection function according to claim 4, characterized in that: the movable plate (511) and the contraction plate (512) are fixedly connected with handles (513).
6. The tensile testing machine with the protection function according to claim 5, characterized in that: the movable plate (511) and the contraction plate (512) are both transparent plates.
7. The tensile testing machine with the protection function according to claim 1, characterized in that: actuating mechanism (400) include two sliders (410), two lead screw (420) and synchronous drive subassembly (430), two lead screw (420) all rotate with stand (110) that correspond and are connected, cavity (140) have been seted up in base (100), synchronous drive subassembly (430) set up in cavity (140) for two lead screw (420) synchronous rotations of drive, two slider (410) all with lead screw (420) threaded connection that corresponds to slide along vertical direction with stand (110) that corresponds and be connected, one of them slider (410) and the one end fixed connection of horizontal pole (300), another slider (410) and the other end fixed connection of horizontal pole (300).
8. The tensile testing machine with the protection function according to claim 7, characterized in that: the synchronous driving assembly (430) comprises a first belt pulley (431), a second belt pulley (432), a belt (433) and a driving motor (434), wherein the first belt pulley (431) is in transmission connection with the second belt pulley (432) through the belt (433), an output shaft of the driving motor (434) is in coaxial fixed connection with one lead screw (420) through the first belt pulley (431), and the second belt pulley (432) is in coaxial fixed connection with the other lead screw (420).
9. The tensile testing machine with the protection function according to claim 8, characterized in that: one end of one of the upright posts (110) close to the base (100) is provided with a contact switch (600), the contact switch (600) is in contact connection with the cross rod (300), and the contact switch (600) is electrically connected with the driving motor (434).
10. The tensile testing machine with the protection function according to claim 1, characterized in that: be provided with pressure mechanism (700) between horizontal pole (300) and base (100), pressure mechanism (700) include two pressure disks (710), one of them pressure disk (710) can be dismantled with horizontal pole (300) and be connected near one side of base (100), another pressure disk (710) can be dismantled with one side of base (100) near horizontal pole (300) and be connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021993980.7U CN212989045U (en) | 2020-09-11 | 2020-09-11 | Tensile testing machine with protection function |
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| CN202021993980.7U CN212989045U (en) | 2020-09-11 | 2020-09-11 | Tensile testing machine with protection function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295477A (en) * | 2021-12-15 | 2022-04-08 | 济南中路昌试验机制造有限公司 | Fatigue crack propagation fracture toughness testing machine |
-
2020
- 2020-09-11 CN CN202021993980.7U patent/CN212989045U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295477A (en) * | 2021-12-15 | 2022-04-08 | 济南中路昌试验机制造有限公司 | Fatigue crack propagation fracture toughness testing machine |
| CN114295477B (en) * | 2021-12-15 | 2024-05-14 | 济南中路昌试验机制造有限公司 | Fatigue crack extension fracture toughness testing machine |
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