CN215448799U - Electric bending resistance testing machine - Google Patents
Electric bending resistance testing machine Download PDFInfo
- Publication number
- CN215448799U CN215448799U CN202121141535.2U CN202121141535U CN215448799U CN 215448799 U CN215448799 U CN 215448799U CN 202121141535 U CN202121141535 U CN 202121141535U CN 215448799 U CN215448799 U CN 215448799U
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- slide rail
- weight
- scale
- fixedly connected
- support
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Abstract
The application relates to an electronic bending test machine, the on-line screen storage device comprises a base, base upper end fixedly connected with support, install anchor clamps on the base, the support rotationally is connected with the slide rail, the slide rail includes the motor, the motor can be connected with the weight with sliding, the slide rail rotationally is connected with lever mechanism, anchor clamps rotationally connect in lever mechanism, support fixedly connected with scale, weight fixedly connected with pointer, the pointer is directional the scale is used for so that follow reading on the scale. With the test block of anchor clamps step up required inspection, anchor clamps pulling lever mechanism during fastening anchor clamps, lever mechanism pulling slide rail one end is lifted up, then motor drive weight moves up along the slide rail slant, and the weight shifts up, and the test block receives anchor clamps pulling force increase, until being broken, weight and slide rail whereabouts to the horizontality this moment, a scale of the directional scale of pointer on the weight, promptly for the experimental result.
Description
Technical Field
The application relates to the technical field of mechanical property detection of building materials, in particular to an electric bending resistance testing machine.
Background
During construction of building engineering, mechanical property detection needs to be carried out on engineering materials such as concrete and the like used by the engineering materials so as to ensure that the engineering materials meet the use standard and ensure the construction quality. The bending resistance test is also an important part for detecting the mechanical property of various concrete or other building materials.
Most laboratories at present adopt the electronic bending testing machine of KZJ-5 type, this testing machine mainly includes anchor clamps, including a motor, an end cap, a controller, and a cover plate, the weight, the scale etc, the weight can slide on the scale, be connected through several lever mechanism between scale rear end and the anchor clamps, when anchor clamps press from both sides tightly, make the scale front end lift up through the lever, at this moment, the weight is under motor drive, slide to the front end from the rear end of scale, the weight leans on before more, the power that anchor clamps step was tightened is big more, until pressing from both sides disconnected experiment test block, the scale falls down and touches motor switch, the motor is closed, the weight stops sliding, the position that the record weight is located on the scale can calculate the test result.
Technical scheme among the above-mentioned, because the weight slides on the scale, can take place wearing and tearing between weight and the scale, long this past, influence the definition of the scale on the scale, arouse reading error easily, cause the test result accuracy step-down.
Disclosure of Invention
To the not enough of prior art existence, the purpose of this application is to provide the electronic bending test machine that can reduce scale wearing and tearing.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides an electronic bending test machine, includes the base, base upper end fixedly connected with support, install anchor clamps on the base, the support rotationally is connected with the slide rail, the motor is installed to the slide rail, the motor can be connected with the weight with sliding, the slide rail rotationally is connected with lever mechanism, anchor clamps rotationally connect in lever mechanism, support fixedly connected with scale, weight fixedly connected with pointer, the pointer is directional the scale is used for so that follow reading on the scale.
By adopting the technical scheme, when the electric anti-bending testing machine is required to test the mechanical property of the test block, the test block is arranged on the clamp, the clamp pulls the lever mechanism when the clamp is clamped, and one end of the lever mechanism pulls the sliding rail is lifted to a proper angle. At this time, the slide rail is equivalent to a lever for pulling the clamp, taking the connecting point of the bracket and the slide rail as a fulcrum. Starting electronic bending test machine, motor drive weight is to keeping away from the direction removal of slide rail and brace connection point, and the weight is rebound this moment, and the rebound more, the pulling force that anchor clamps received is big more, and when the test block was broken by anchor clamps, the reading on the scale that the fixed pointer of weight pointed, for test result, through this reading, can calculate the bending strength of test block. Compare in the weight mode of sliding on the scale, set up the scale on the support, through the pointer knowledge scale reading along with the weight removal, the scale does not receive the wearing and tearing influence that comes from the weight that removes, has increased the life of scale.
Optionally, the output fixedly connected with threaded rod of motor, the threaded rod pass through the screw thread rotationally connect in the weight.
Through adopting above-mentioned technical scheme, the motor drive threaded rod rotates, and threaded rod screw thread rotates and drives the weight and slide on the threaded rod, provides a more uniform motion for the weight through motor and threaded rod, reduces the influence that tensile sudden change made the test block atress increase in the twinkling of an eye bring.
Optionally, the slide rail further comprises a slide bar, and the weight is slidably mounted on the slide bar.
Through adopting above-mentioned technical scheme, the motor drive weight slides on the slide bar, because the test block is broken in the twinkling of an eye, the weight falls down from the eminence, and the weight possess certain weight, can cause the threaded rod impaired, and the slide bar provides a support for the weight, reduces the weight and falls down the impact to the threaded rod, increases the life of threaded rod.
Optionally, the support is fixedly connected with a proximity switch, and the slide rail is fixedly connected with a stop block.
Through adopting above-mentioned technical scheme, being broken when the test block, the slide rail whereabouts, the dog is along with the slide rail whereabouts when to the minimum, and the dog shelters from the proximity switch who is located on the support, and proximity switch intercommunication motor is sheltered from the back motor stall, and the weight stops moving, and the scale position through pointer instruction can the reading. Compare in most with motor switch installation in the slide rail below, rely on the slide rail whereabouts to strike the method of trigger switch, adopt proximity switch can avoid the slide rail to the direct impact of switch, prolong the life of switch.
Optionally, the bracket is fixedly connected with a buffer member.
Through adopting above-mentioned technical scheme, being broken when the test block, when the slide rail whereabouts, because the weight of weight and slide rail is great, can cause great impact to support and slide rail itself, through the cushioning effect of bolster, the impact of buffering slide rail to the support reduces the influence that the impact brought.
Optionally, a travel switch is installed on the slide rail, and the travel switch is located at the weight calibration point.
Through adopting above-mentioned technical scheme, after a test block experiment was accomplished, through the motor reversal, the weight can reset, when the weight got back to scale zero point, touched travel switch, the motor stall, and the weight stops to remove. Compared with a manual zero calibration mode, the automatic zero calibration device has the advantages that the automatic zero calibration is realized through the motor and the travel switch, and the working efficiency is improved.
Optionally, the support rotates and is connected with the fine setting spiral, fine setting spiral fixed connection in the threaded rod is kept away from the one end of keeping away from the motor.
Through adopting above-mentioned technical scheme, when travel switch is not enough to make comparatively accurate stopping of weight at school zero point, accessible fine setting spiral rotates the little amplitude adjustment weight position of threaded rod to the school zero of messenger's weight is more accurate.
Optionally, the slide rail is provided with a sliding block for adjusting the horizontal degree of the slide rail, and the slide rail is provided with a horizontal pipe.
Through adopting above-mentioned technical scheme, because the test machine mainly relies on the gravity of weight to break the test block, so there is certain requirement to the levelness of slide rail, before using, through the state of observing the horizontal tube, the adjustment is run the yard and is made the slide rail be in the horizontality.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by separating the weight from the scale, the scale cannot be abraded any more in the moving process of the weight, so that the service life of the scale is prolonged;
2. the arrangement of the slide rail weakens the impact on the threaded rod when the weight falls down, and reduces the damage on the threaded rod;
3. the arrangement of the proximity switch avoids direct impact on the switch piece, and the service life of the switch is prolonged.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of an electric bending resistance testing machine according to the present application.
Fig. 2 is a schematic structural diagram of a slide rail portion according to an embodiment of the present application.
In the figure, 1, a base; 11. a console;
2. a support; 21. a support bar; 22. a rail frame; 221. a cross frame; 222. a longitudinal frame; 2221. mounting grooves; 223. a buffer member; 23. a scale; 24. a proximity switch;
3. a slide rail; 31. a slide rail frame; 311. a travel switch; 32. a slide bar; 33. end sealing of the sliding rail; 331. A stopper; 34. a motor frame; 341. a transverse plate; 342. a longitudinal plate; 343. a run number; 344. a rider bar; 345. a horizontal tube;
4. a motor; 41. a threaded rod; 411. fine adjustment of the screw; 42. a weight; 421. a pointer;
5. a lever mechanism;
6. and (4) clamping.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
Referring to fig. 1, for the electronic bending test machine that this application discloses, including base 1, base 1 top fixed mounting has a control cabinet 11 that is used for electronic bending test machine control, and base 1 fixed mounting has support 2 and anchor clamps 6, and support 2 fixedly connected with scale 23, support 2 rotationally are connected with slide rail 3, and slide rail 3 can be connected with weight 42 with sliding, and weight 42 fixedly connected with pointer 421, the scale of the directional scale 23 of pointer 421. Support 2 fixedly connected with motor 4, the output end fixedly connected with threaded rod 41 of motor 4, threaded rod 41 is rotationally connected with weight 42 through the screw thread. The slide rail 3 is rotatably connected with a lever mechanism 5, and the lever mechanism 5 is rotatably connected with a clamp 6.
When a test block needs to be subjected to an anti-bending experiment, the test block is placed into the fixture 6, the upper half part of the fixture 6 is a fixture 6 positioning element, the lower half part of the fixture is a clamping mechanism of the fixture, the lower end of the positioning element is provided with two round rollers which are arranged in parallel, the upper end of the clamping mechanism is provided with one round roller, the three round rollers are arranged in a triangular mode, when the test block is placed in, the test block is flatly placed on the two round rollers of the positioning element, the clamping mechanism is screwed, and the round rollers on the clamping mechanism move downwards to compress the upper surface of the test block. The lever mechanism 5 is rotatably connected to the positioning element, the clamping mechanism is fixedly connected to the base 1, and when the clamping mechanism is continuously tightened, the positioning element is pulled to move downwards, so that the lever mechanism 5 deflects downwards, further pulling the slide rail 3, the slide rail 3 rotates around the connecting point of the slide rail 3 and the bracket 2, one end of the slide rail 3 is lifted, the slide rail 3 is lifted to a proper height, then the motor 4 is started, the motor 4 drives the threaded rod 41 to rotate, the threaded rod 41 drives the weight 42 to slide on the slide rail 3 to the lifted end of the slide rail 3, the weight of the lifted end of the slide rail 3 is increased along with the sliding of the weight 42, the force generated by the weight pulls the lever mechanism 5, thereby pulling the clamp 6 until the test block in the clamp 6 is broken, at the moment, the slide rail 3 loses the pulling force and recovers to the horizontal platform, meanwhile, the pointer 421 on the weight 42 points to a scale on the scale 23, and the experimental result can be calculated through the scale.
Referring to fig. 1 and 2, the bracket 2 includes a support rod 21 and a rail frame 22, the support rod 21 is a cylindrical rod, the bottom end of the support rod 21 is fixedly connected to the upper surface of the base 1 through a bolt, and the rail frame 22 is fixedly connected to the top end of the support rod 21 through welding. Track frame 22 includes crossbearer 221 and indulges frame 222, and crossbearer 221 is the rectangular cylinder, and crossbearer 221 lower surface passes through welded fastening and connects in the bracing piece 21 top, and crossbearer 221 upper surface passes through screw fixedly connected with scale 23, indulges frame 222 fixed connection in the one end of crossbearer 221 upper surface, indulges frame 222 and crossbearer 221 as integrated into one piece, indulges frame 222 and is the rectangular cylinder, indulges frame 222 side and has seted up mounting groove 2221 along the long limit direction of crossbearer 221, and mounting groove 2221 runs through indulging frame 222.
The longitudinal frame 222 is rotatably connected with the slide rail 3 through a pin shaft, the slide rail 3 comprises a slide rail frame 31, two slide bars 32 are welded on the side surface of the slide rail frame 31, the two slide bars 32 are arranged in parallel, and one ends, far away from the slide rail frame 31, of the slide bars 32 are fixedly connected with slide rail end caps 33 through bolts. The slide rail frame 31 and the slide rail end closure 33 are provided with through holes at the center of the connecting line of the two slide bars 32, and the threaded rod 41 penetrates through the through holes on the slide rail frame 31 and the slide rail end closure 33. The upper end of one side of the slide rail frame 31 far away from the slide bar 32 is fixedly connected with a motor frame 34, the motor frame 34 comprises a transverse plate 341 and two longitudinal plates 342, and the motor 4 is fixedly connected with the lower end of the transverse plate 341. Two vertical plates 342 all fixed connection in the upper surface of diaphragm 341, the through-hole has been seted up to vertical plate 342, two vertical plate 342 parallel arrangement, vertical plate 342 fixedly connected with vernier bar 344, vernier bar 344 runs through the through-hole of two vertical plates 342, can install vernier bar 343 on vernier bar 344 with sliding, vernier bar 343 is located the relative interval that forms of two vertical plates 342, be provided with the screw thread on vernier bar 344 and the vernier bar 343, when vernier bar 343 rotates on vernier bar 344, can slide in the relative interval that forms of two vertical plates 342 through the screw thread. When the slide rail 3 needs to be corrected, the slide rail 3 can be adjusted to be in a horizontal state by sliding the sliding bar 343. For the convenience of observation, the horizontal tube 345 is fixedly installed on the lateral surface of the horizontal plate 341, and the horizontal state of the slide rail 3 can be relatively easily determined through the horizontal tube 345.
Because weight 42 has certain weight, when weight 42 whereabouts, can cause the impact to support 2, in order to cushion this impact, the upper surface fixedly connected with bolster 223 of crossbearer 221, bolster 223 is located the landing position of slide rail end closure 33 on support 2 for accept slide rail end closure 33, and bolster 223 can adopt flexible material such as spring, attenuator and rubber as the buffering, reduces the impact of slide rail 3 to support 2, increases the life of testing machine.
One end fixedly connected with proximity switch 24 that support 2 is close to bolster 223, the one end fixedly connected with that slide rail end capping 33 is kept away from support 2 is used for sheltering from proximity switch 24 in order to trigger proximity switch 24's dog 331, after the test block is broken by anchor clamps 6, slide rail end capping 33 whereabouts, dog 331 gets into proximity switch 24 along with slide rail end capping 33 whereabouts, block proximity switch 24's signal source, make proximity switch 24 control motor 4 stall, weight 42 stops sliding, can reach the experimental result through pointer 421 readings etc. of weight 42 stop position. When the next experiment is carried out, the motor 4 is controlled to rotate reversely through the switch, the weight 42 is reset, in order to facilitate the reset of the weight 42, the travel switch 311 is arranged at one end, close to the weight 42, of the slide rail frame 31, and when the weight 42 slides to the zero point of the pointer 421 pointing to the scale 23, the travel switch 311 is triggered, and the motor 4 stops rotating. Threaded rod 41 is close to the one end fixedly connected with fine setting spiral 411 of slide rail end closure 33, and when travel switch 311 was not enough to make better the resetting of weight 42, the fine setting spiral 411 of expert guan xiao rotated threaded rod 41 and finely tuned weight 42 position, made weight 42's zero point position more accurate.
Base 1 top fixed mounting has control cabinet 11 slide rail frame 31 to rotationally be connected with lever mechanism 5, and lever mechanism 5 rotationally is connected with anchor clamps 6, and lever mechanism 5 and anchor clamps 6 in this embodiment belong to prior art, no longer describe again.
The implementation principle of the embodiment is as follows: when a test block needs to be subjected to an anti-bending experiment, the sliding rail 3 is adjusted to be in a horizontal state through the sliding block 343 and the horizontal pipe 345. The test block is placed into the clamp 6, the clamp 6 is screwed, the clamp 6 pulls the lever mechanism 5 to drive one end of the sliding rail end cover 33 of the sliding rail 3 to lift upwards, when the end is lifted to a proper position, the motor 4 is started to rotate positively through the control console 11, the motor 4 drives the spiral rod to rotate, the weight 42 is driven to slide towards the sliding rail end cover 33, and when the sliding block slides continuously, the clamp 6 is subjected to larger and larger pulling force from the lever until the test block is pulled to be broken. After the test block is broken, the weight 42 and the slide rail 3 lose the pulling force from the lever and instantly fall under the gravity, when the stop 331 of the slide rail end cap 33 falls to block the proximity switch 24, the motor 4 stops rotating, and the reading of the scale 23 pointed by the pointer 421 is the test result. When needing next experiment, through the reversal of control cabinet 11 control motor 4, the weight 42 resets that slides, gets back to scale 23 zero point after the weight 42, touches travel switch 311 on the slide rail frame 31, and motor 4 stall, if pointer 421 instructs to have the deviation, and accessible fine setting spiral 411 finely tunes, makes the weight 42 return to zero more accurately to it is more accurate to make subsequent experiment.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the 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 (8)
1. The utility model provides an electronic bending test machine, includes base (1), base (1) upper end fixedly connected with support (2), install anchor clamps (6) on base (1), support (2) rotationally are connected with slide rail (3), motor (4) are installed in slide rail (3), motor (4) can be connected with weight (42) with sliding, slide rail (3) rotationally are connected with lever mechanism (5), anchor clamps (6) rotationally connect in lever mechanism (5), its characterized in that: support (2) fixedly connected with scale (23), weight (42) fixedly connected with pointer (421), pointer (421) point to scale (23) are so that follow reading on scale (23).
2. An electric bending tester according to claim 1, characterized in that: the output end of the motor (4) is fixedly connected with a threaded rod (41), and the threaded rod (41) is rotatably connected with the weight (42) through threads.
3. An electric bending tester according to claim 1, characterized in that: the slide rail (3) further comprises a slide bar (32), the weight (42) being slidably mounted to the slide bar (32).
4. An electric bending tester according to claim 1, characterized in that: the support (2) is fixedly connected with a proximity switch (24), and the sliding rail (3) is fixedly connected with a stop block (331).
5. An electric bending tester according to claim 1, characterized in that: the support (2) is fixedly connected with a buffer piece (223).
6. An electric bending tester according to claim 1, characterized in that: travel switch (311) is installed in slide rail (3), travel switch (311) are located weight (42) school zero point.
7. An electric bending tester according to claim 2, characterized in that: support (2) rotate and be connected with fine setting spiral (411), fine setting spiral (411) fixed connection in threaded rod (41) are kept away from the one end of motor (4).
8. An electric bending tester according to claim 1, characterized in that: slide rail (3) are installed and are used for adjusting slide rail (3) horizontal degree loose code (343), horizontal pipe (345) are installed in slide rail (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121141535.2U CN215448799U (en) | 2021-05-23 | 2021-05-23 | Electric bending resistance testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121141535.2U CN215448799U (en) | 2021-05-23 | 2021-05-23 | Electric bending resistance testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215448799U true CN215448799U (en) | 2022-01-07 |
Family
ID=79708280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121141535.2U Expired - Fee Related CN215448799U (en) | 2021-05-23 | 2021-05-23 | Electric bending resistance testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215448799U (en) |
-
2021
- 2021-05-23 CN CN202121141535.2U patent/CN215448799U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |