CN112611712B - Material performance tester - Google Patents
Material performance tester Download PDFInfo
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- CN112611712B CN112611712B CN202010363584.4A CN202010363584A CN112611712B CN 112611712 B CN112611712 B CN 112611712B CN 202010363584 A CN202010363584 A CN 202010363584A CN 112611712 B CN112611712 B CN 112611712B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/06—Investigating by removing material, e.g. spark-testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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Abstract
The invention discloses a performance tester, which comprises a transmission mechanism; the grinding mechanism is used for grinding the surface to be detected; the grinding mechanism is connected with the transmission mechanism, and the transmission mechanism is used for driving the grinding mechanism to move towards the direction close to or far away from the surface to be detected; and the constant force mechanism is connected with the grinding mechanism and is used for applying elastic load force in the vertical direction to the grinding mechanism so that the grinding mechanism keeps contact with the surface to be detected in the process of grinding the surface to be detected. The technical scheme of the invention can be used as on-site detection equipment, can be carried to the on-site to carry out a test, is provided with the constant force mechanism, creatively solves the technical difficulty of overcoming constant force grinding, monitors in real time and manually adjusts through the displacement change of the cross beam, and solves the problem that the existing equipment can not accurately control the test pressure; and the grinding depth is observed in real time in the test process, and the thickness of the surface layer material which does not fire on the site is accurately tested.
Description
Technical Field
The invention relates to the technical field of material detection, in particular to a material performance tester.
Background
The non-ignition (explosion-proof) surface layer refers to a surface layer made of materials and hardened test pieces, does not generate sparks (or sparks) when subjected to mechanical tests such as friction, impact or scouring with hard objects such as metal or stone, and does not have a building ground which causes inflammables to ignite or explode. The non-firing inorganic material floor is made of non-firing cement stone sand, fine stone concrete, terrazzo and other inorganic materials, and the aggregate is made of limestone, marble, dolomite or other stone materials.
The test object of the prior test method for the non-ignitability of the building ground material and the product thereof is non-ignitability aggregate or a test piece, and the test pressure of a surface to be detected cannot be accurately controlled when the prior non-ignitability material tester is used for field detection, so that the reliability of the test result of the non-ignitability material tester is low.
Disclosure of Invention
Based on this, it is necessary to provide a tester capable of accurately controlling the performance of the pressure material to be tested.
The invention provides a material performance tester, which comprises:
a transmission mechanism;
the grinding mechanism is used for grinding the surface to be detected; the grinding mechanism is connected with the transmission mechanism, and the transmission mechanism is used for driving the grinding mechanism to move towards the direction close to or far away from the surface to be detected; and
the constant force mechanism is connected with the transmission mechanism and used for applying load to the grinding mechanism so that the grinding mechanism can keep contact with the surface to be detected in the process of grinding the surface to be detected.
Further, the constant force mechanism comprises
The elastic piece is connected with the grinding mechanism and used for eliminating the dead weight of the grinding mechanism; and
and the balancing weight is connected with the grinding mechanism and is used for applying load to the grinding mechanism.
Further, the constant force mechanism further comprises a first beam and a second beam; the first cross beam is connected with the transmission mechanism, and the second cross beam is connected with the grinding mechanism; one end of the elastic piece is connected with the first cross beam, and the other end of the elastic piece is connected with the second cross beam; the balancing weight is arranged on the second cross beam.
Further, the transmission mechanism comprises a transmission upright post and a transmission cross rod; the transmission cross rod is meshed with the transmission upright post; the transmission upright post is in threaded connection with the first cross beam and is used for driving the first cross beam to move on the transmission upright post along the vertical direction, the second cross beam is sleeved on the transmission upright post, and the second cross beam can freely slide on the transmission upright post.
Furthermore, the grinding mechanism comprises a driving part and a grinding wheel connected with the driving part, and the driving part is used for driving the grinding wheel to rotate around the axial direction of the driving part so as to drive the grinding wheel to grind the surface to be detected.
Furthermore, the grinding machine also comprises a cover body which covers the grinding mechanism, the constant force mechanism and the transmission mechanism in a buckling manner.
Further, the cover body is a shading outer cover.
Furthermore, the constant force mechanism further comprises a grinding indicating device, and the grinding indicating device is connected with the first cross beam and the second cross beam and used for correcting grinding pressure and indicating grinding depth.
Further, the grinding indicating device comprises a first displacement indicating rod, a second displacement indicating rod, a first dial indicator connected with the first displacement indicating rod and a second dial indicator connected with the second displacement indicating rod; the first displacement indicating rod is connected with the first cross beam, and the second displacement indicating rod is connected with the second cross beam.
Further, the grinding machine also comprises a spark detector for detecting sparks generated during grinding of the grinding mechanism;
an alarm electrically connected to the spark detector.
The material performance tester provided by the invention at least has the following beneficial effects:
the equipment is provided with the constant force mechanism, constant force grinding is realized, the technical difficulty of overcoming constant force grinding is creatively solved, the constant force mechanism is manually adjusted through the transmission mechanism, the test pressure is convenient to correct, the stability of the test pressure is good, the problem that the test pressure cannot be accurately controlled by the existing equipment is solved, and the test effect and the test precision are greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a material property tester according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a material property tester according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a material property tester according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a material property tester according to another embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 3, the material property tester of the present invention includes a transmission mechanism 2, a constant force mechanism 3, and a grinding mechanism 4;
the grinding mechanism 4 is used for grinding the surface to be detected; the grinding mechanism 4 is connected with the transmission mechanism 2, and the transmission mechanism 2 is used for driving the grinding mechanism 4 to move towards the direction close to or far away from the surface to be detected; the constant force mechanism 3 is connected with the grinding mechanism 4, and the constant force mechanism 3 is used for applying elastic load force in the vertical direction to the grinding mechanism 4 so that the grinding mechanism 4 keeps contact with the surface to be detected in the process of grinding the surface to be detected.
The equipment is provided with the constant force mechanism 3, constant force grinding is realized, the technical difficulty of overcoming the constant force grinding is creatively solved, the constant force mechanism 3 is manually adjusted through the transmission mechanism 2, the test pressure is corrected, the stability of the test pressure is good, the problem that the test pressure cannot be accurately controlled by the existing equipment is solved, and the test effect and the test precision are greatly improved.
In specific application, the material performance tester is placed at the position of the surface to be detected, whether the grinding mechanism 4 is aligned with the surface to be detected is checked, and if the grinding mechanism 4 is not aligned with the surface to be detected, the material performance tester is moved until the grinding mechanism 4 is aligned with the surface to be detected; the constant force mechanism 3 and the grinding mechanism 4 are moved downwards through the transmission mechanism 2 until the grinding mechanism 4 is just close to the surface to be detected, then the balancing weight 35 is placed on the second cross beam 32, and then the material performance tester is started to test the non-ignition performance of the surface to be detected.
As shown in fig. 1, in an embodiment, the transmission mechanism 2 includes a transmission cross bar 22 and a transmission upright 23, one end of the transmission upright 23 is provided with a first engaging portion 241, an axial direction of the transmission cross bar 22 is perpendicular to an axial direction of the transmission upright 23, and the transmission cross bar 22 is provided with a second engaging portion 242 matching with the first engaging portion 241, so as to drive the transmission cross bar 22 to rotate around its axial direction, and the transmission upright 23 can be driven to rotate around its axial direction through the engagement transmission of the first engaging portion 241 and the second engaging portion 242.
When the gear transmission mechanism is specifically implemented, the first meshing part 241 and the first meshing part 241 can be gears which are matched with each other, so that the gear transmission is stable, the transmission ratio is accurate, the work is reliable, and the structure is compact; the lifting turntable 21 is adopted to drive the transmission cross rod 22, so that manual adjustment is facilitated, and accurate control of test pressure is facilitated; meanwhile, the two transmission upright columns 23 are driven by the transmission cross rod 22, so that the structure of the transmission mechanism 2 is optimized, and the operation is convenient.
As shown in fig. 1, in one embodiment, the constant force mechanism 3 includes a first cross beam 31, an elastic member 34, and a counterweight 35, the first cross beam 31 is screwed on the transmission upright 23, and drives the transmission upright 23 to rotate around its own axial direction, so as to drive the first cross beam 31 to move along the axial direction of the transmission upright 23; one end of the elastic member 34 is connected to the first cross member 31; the other end of the elastic piece 34 is connected with the grinding mechanism 4; the elastic member 34 is used for applying an elastic pulling force in the vertical direction to the grinding mechanism 4; the counterweight 35 is disposed on the grinding mechanism, and the counterweight 35 is configured to apply a vertically downward load force to the grinding mechanism 4.
In specific application, the elastic part 34 is an important component for realizing constant-force grinding, and the stretching length of the elastic part 34 is continuously kept before and after the grinding mechanism 4 is contacted with the ground, so that the gravity of the grinding mechanism 4 can be counteracted; the grinding mechanism 4 can be just close to the surface to be detected under the condition of not bearing external force, and the balancing weight 35 acts on the grinding mechanism 4 during testing; in the grinding process, the elastic part 34 enables the grinding mechanism 4 to be in elastic contact with the surface to be detected, the height of the constant force mechanism 3 is adjusted through the transmission mechanism 2 to realize the correction of the test pressure, the stability of the test pressure is good,
in this embodiment, the two transmission columns 23 are included, the two transmission columns 23 are disposed oppositely, and two ends of the first cross beam 31 are respectively screwed with the two transmission columns 23, so as to facilitate stable movement of the first cross beam 31.
In this embodiment, the elastic member 34 may be, but is not limited to, a spring; in one embodiment, the elastic member 34 includes a plurality of elastic members 34, and the plurality of elastic members 34 are spaced between the first beam 31 and the second beam 32.
The constant force mechanism further comprises a second cross beam 32, the second cross beam 32 is sleeved on the transmission upright post 23 and can move up and down along the axial direction of the transmission upright post 23, one end, far away from the first cross beam 31, of the elastic piece 34 is connected with the second cross beam 32, the grinding mechanism 4 is arranged on the second cross beam 32, and the balancing weight 35 is arranged on the second cross beam 32.
The presence of the second cross member 32 facilitates the connection between the elastic member 34 and the grinding mechanism 4, and facilitates the placement of the weight 35, uniformly applying a vertical downward load force to the grinding mechanism 4.
Specifically, constant force mechanism 3 utilizes elastic component 34 to realize grinding mechanism 4 and wait to detect the face real time contact, the grinding in-process, elastic component 34 can be along with waiting to detect the sinking of face and extend, elastic component 34 elasticity increases, at this moment, adjust the height of first crossbeam 31 through drive mechanism 2, make first crossbeam 31 and second crossbeam 32 realize synchronous lift, the extension volume that realizes elastic component 34 continuously keeps the state when eliminating the dead weight, thereby realize the constant force grinding, it is the same with the loading force that balancing weight 35 applyed all the time to keep testing required pressure promptly.
Further, be provided with balancing weight dead lever 33 on the second crossbeam 32, balancing weight dead lever 33 can set up in second crossbeam 32 middle part, and balancing weight 35 overlaps and locates on balancing weight dead lever 33, and is concrete, and the through-hole has been seted up at balancing weight 35 middle part, during the detection, can directly insert balancing weight 35 on balancing weight dead lever 33, not only plays limiting displacement, and the dismouting of being convenient for.
As shown in fig. 1, 2 and 3, in one embodiment, in order to better realize the constant force adjustment between the grinding mechanism 3 and the surface to be detected, the material property tester further comprises a grinding indicating device 36;
the grinding indicating device 36 comprises a first displacement indicating rod 371, a second displacement indicating rod 372, a measuring slide rod 38, a first dial indicator 391 and a second dial indicator 392 and a fixing device 6 for mounting the first dial indicator 391 and the second dial indicator 392; the first displacement indicating rod 37 has one end connected to the first beam 31 and the other end contacting the first dial indicator 391, and the second displacement indicating rod 372 has one end connected to the second beam 32 and the other end contacting the second dial indicator 392. Second displacement indicating rod
The displacement of the first displacement indicating rod 371 is used for correcting the grinding pressure between the grinding mechanism 3 and the surface to be detected in the test process, and the displacement of the second displacement indicating rod 372 represents the grinding depth of the grinding mechanism 3; correspondingly, the first dial indicator 391 is in contact with the first displacement indicator 371, the reading of which is used for correcting the grinding pressure between the grinding mechanism 3 and the surface to be detected in the test process, and the second dial indicator 392 is in contact with the second displacement indicator 372, the reading of which represents the grinding depth;
in a specific application, the readings of the first dial indicator 391 and the second dial indicator 392 are kept the same, that is, the displacement of the first displacement indicator 371 is the same as that of the second displacement indicator 372, so that the test pressure is effectively controlled, and the measurement accuracy is improved.
It should be noted that the first dial indicator 391 and the second dial indicator 392 are installed in the fixing device 6, the fixing device 6 is installed on the measuring slide rod 38, and as shown in fig. 4, the fixing device 6 is provided with a measuring slide rod hole 61 and a meter hole 62, respectively.
As shown in fig. 1, in one embodiment, the grinding mechanism 4 includes a driving member 42 and a grinding wheel 41 connected to the driving member 42, the driving member 42 is used for driving the grinding wheel 41 to rotate around the axial direction of the driving member 42 so as to drive the grinding wheel 41 to grind the surface to be detected; the driver 42 is connected to the second cross member 32.
In the specific application, the driving member 42 may be, but is not limited to, a servo motor, and during the detection, the lifting turntable 22 is rotated to move the constant force mechanism 3 and the grinding mechanism 4 downward until the grinding wheel 41 is just close to the surface to be detected, and then the counterweight 35 is sleeved on the counterweight fixing rod 33 on the second beam 32, and the grinding wheel 41 grinds the ground.
As shown in fig. 1, 2 and 3, in one embodiment, the material property tester is further provided with a cover body 1, and the cover body 1 covers the grinding mechanism 4, the constant force mechanism 3 and the transmission mechanism 2, on one hand, for installing the grinding mechanism 4, the constant force mechanism 3 and the transmission mechanism 2, and on the other hand, provides a dark environment for the detection test of the non-ignition material.
Further, the material performance tester of the above embodiment further includes a spark detector 51 and an alarm 52, the spark detector 51 is installed on the cover body 1 on one side of the grinding wheel 41, the alarm 52 is installed on the top of the cover body 1, an alarm sound is emitted through the alarm 52 if the spark detector 51 senses that instantaneous sparks generated when the grinding wheel 41 grinds the surface to be tested are generated in the testing process, and the alarm sound is prolonged if continuous sparks exist, so that the material performance tester has the function of automatically judging the testing result, and the potential safety hazard existing in the testing process of the non-sparking material performance is avoided.
In the invention, the cover body 1 is a shading outer cover made of opaque materials, and in the prior art, tests are required to be carried out in a completely dark laboratory.
In addition, the cover body 1 is provided with an observation window 11, a dust removal interface 11, an air inlet 13, a rubber pad 14, an indicator rod lifting groove 15 and a control panel 16, wherein the observation window 11 is arranged at the lower part of the cover body 1 and can be opened before the test is started for observing the contact condition of the grinding wheel 41 and the surface to be detected and placing a balancing weight 35 after the self weight of the grinding mechanism 4 is eliminated; the dust removal interface 11 and the air inlet 13 are arranged at two sides of the cover body 1, the dust removal interface 11 is used for being connected with a dust collection device, dust in the cover body 1 is eliminated, the problem of large dust in the performance test process of a non-ignition material is solved, the working environment is optimized, and the air inlet 13 is used for air flowing during dust removal to prevent negative pressure from being generated in the cover body 1; the rubber pad 14 is arranged at the bottom of the cover body 1, on one hand, the rubber pad can be used for preventing light leakage in the test process and influencing the work of a spark detector, on the other hand, the friction force between the cover body 1 and the surface to be detected can be increased, and the cover body 1 can be conveniently and stably placed; the indicating rod lifting groove 15 is arranged at one side of the cover body 1, is provided with shading cloth and is used for lifting the first displacement indicating rod 371 and the second displacement indicating rod 372; the control panel 16 contains start and stop buttons and is fitted with a warning light connected to the alarm 52 for warning of the test process of sparking.
The specific test method of the material performance tester of the above embodiment is as follows:
the material performance tester disclosed by the invention only needs to perform the following steps during field test:
the first step is as follows: the equipment is taken to the test site, the dust removing device is connected with the dust removing interface 12, and the equipment is horizontally placed at the designated test position.
The second step is that: opening the observation window 11 on the cover body 1, checking whether the grinding wheel 41 is aligned to the test surface of the surface to be detected, and moving the material performance tester until the test surface is not aligned to the test surface of the surface to be detected; and rotating the lifting turntable 21 to enable the constant force mechanism 3 and the grinding mechanism 4 to move downwards until the grinding wheel 41 is just close to the surface to be detected, inserting the balancing weight 35 into the balancing weight fixing rod 33 arranged on the second cross beam 32, and closing the observation window 11.
The third step: two dial indicators 39 and the fixing device 6 are mounted on the measuring slide bar 38 and are respectively in contact with the two displacement indicating rods 37, and the reading of the dial indicators 39 is cleared.
The fourth step: and switching on the power supply of the equipment and starting the equipment.
The fifth step: observing the readings of the first dial indicator 391 and the second dial indicator 392, wherein the change of the reading of the second dial indicator 392 represents the grinding depth; in the test process, the lifting turntable 21 is rotated, so that the readings of the first dial indicator 391 and the second dial indicator 392 are close to be consistent, the reading is used for correcting the grinding pressure between the grinding mechanism 4 and the surface to be detected in the test process, and the constant-force grinding is ensured to be realized.
And a sixth step: in the test process, only the readings of the first dial indicator 391 and the second dial indicator 392 need to be observed and the lifting turntable 21 needs to be adjusted, the interior of the cover body 1 can be always in a dark state and can be kept in constant-force grinding, and dust generated in the test is absorbed by the dust removal device.
The seventh step: the tester stops operation when the stop key of the control panel 16 is pressed: 1. when the grinding depth reaches the designed thickness of the non-ignition surface layer material, the alarm 52 and the alarm lamp do not generate an alarm phenomenon, no instantaneous spark is generated in the test process, and the thickness of the non-ignition surface layer material of the surface to be detected can be judged to be larger than the designed thickness and the non-ignition performance test result is qualified; 2. when the grinding depth does not reach the designed thickness of the non-ignition surface layer material, the alarm 52 and the alarm lamp generate an alarm phenomenon, which represents that instantaneous sparks are generated in the test process, the dial indicator reading of the second displacement indicating rod 372 can be read, and the reading is the thickness of the non-ignition surface layer material of the surface to be detected, so that the non-ignition surface layer material of the surface to be detected can be judged to be qualified in non-ignition performance but not to meet the design requirement; 3. when the alarm 52 and the alarm lamp generate the alarm phenomenon immediately after the grinding is started, the non-ignition performance of the non-ignition surface layer material of the surface to be detected can be judged to be unqualified.
Eighth step: and (3) sequentially detaching the dial indicator 39 and the balancing weight 35, moving the material performance tester to another surface to be tested, and repeating the steps from one step to seven to start the next test.
It can be understood that, when the material performance tester is used in a laboratory, only one base capable of fixing the surface to be detected is needed to be added, and the surface to be detected is fixed on the base and then the operation is carried out according to the steps from one step to seven step of the embodiment 1.
The performance detector can be an on-site detection device, can be carried to a site to carry out a test, overcomes various difficulties in an on-site sampling process, and avoids the risk of structural damage of a sampling drill point to the ground; the performance detector is provided with the constant force mechanism, the technical difficulty of constant force grinding is creatively overcome, and the problem that the existing equipment cannot accurately control the test pressure is solved by monitoring the displacement change of the first cross beam and the second cross beam in real time and manually adjusting; the grinding depth is observed in real time in the test process, and the thickness of the surface layer material which does not fire on the site can be accurately tested; the interior of the cover body can reach a darkroom state in the testing process, and a spark detector and an alarm are arranged, so that the performance detector has the function of automatically judging the testing result, the non-ignition performance test can be automatically carried out without being in the darkroom in the daytime, and the potential safety hazard in the testing process is avoided; the device is provided with the base capable of fixing the surface to be detected, and can be used for testing the non-ignition performance in a laboratory.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A material property tester, comprising:
a transmission mechanism;
the grinding mechanism is used for grinding the surface to be detected; the grinding mechanism is connected with the transmission mechanism, and the transmission mechanism is used for driving the grinding mechanism to move towards the direction close to or far away from the surface to be detected; and
the constant force mechanism is connected with the grinding mechanism and used for applying elastic load force in the vertical direction to the grinding mechanism so that the grinding mechanism keeps contact with the surface to be detected in the process of grinding the surface to be detected;
a grinding indication device;
the transmission mechanism comprises a transmission cross rod and a transmission upright post, wherein one end of the transmission upright post is provided with a first meshing part, the axial direction of the transmission cross rod is vertical to the axial direction of the transmission upright post, the transmission cross rod is provided with a second meshing part matched with the first meshing part, the transmission cross rod is driven to rotate around the axial direction of the transmission cross rod, and the transmission upright post can be driven to rotate around the axial direction of the transmission upright post through meshing transmission of the first meshing part and the second meshing part;
the constant force mechanism includes:
the first cross beam is screwed on the transmission upright column, drives the transmission upright column to rotate around the axial direction of the transmission upright column and can drive the first cross beam to move along the axial direction of the transmission upright column;
one end of the elastic piece is connected with the first cross beam; the other end of the elastic part is connected with the grinding mechanism; the elastic piece is used for applying an elastic pulling force vertically upwards to the grinding mechanism; and
the counterweight block is arranged on the grinding mechanism and is used for applying a vertical downward load force to the grinding mechanism;
the constant force mechanism further comprises a second cross beam, the second cross beam is sleeved on the transmission upright column and can move up and down along the axial direction of the transmission upright column, one end, far away from the first cross beam, of the elastic piece is connected with the second cross beam, the grinding mechanism is arranged on the second cross beam, and the balancing weight is arranged on the second cross beam;
the grinding indicating device is connected with the first cross beam and the second cross beam and is used for correcting grinding pressure and indicating grinding depth; the grinding indicating device comprises a first displacement indicating rod, a second displacement indicating rod, a first dial indicator connected with the first displacement indicating rod and a second dial indicator connected with the second displacement indicating rod; the first displacement indicating rod is connected with the first cross beam, and the second displacement indicating rod is connected with the second cross beam.
2. The material property tester according to claim 1, wherein the grinding mechanism comprises a driving member and a grinding wheel connected to the driving member, and the driving member is configured to drive the grinding wheel to rotate around an axial direction of the driving member so as to drive the grinding wheel to grind the surface to be tested.
3. The material property tester of claim 1 further comprising a cover covering the grinding mechanism, the constant force mechanism, and the transmission mechanism.
4. The material property tester of claim 3 wherein the enclosure is a light-shielding enclosure.
5. The material property tester of claim 1, further comprising:
the spark detector is used for detecting sparks generated when the grinding mechanism grinds;
an alarm electrically connected to the spark detector.
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| CN104833604A (en) * | 2015-05-21 | 2015-08-12 | 济南大学 | Adjustable constant-force device for assisting lathe to carry out frictional wear experiment |
| CN106078510A (en) * | 2016-07-26 | 2016-11-09 | 佛山职业技术学院 | A kind of grinding machine with on-line measurement function |
| CN207742086U (en) * | 2018-01-29 | 2018-08-17 | 呼和浩特市四方工程质量检测试验中心 | Building ground material is misfired performance aircraft |
| CN209342583U (en) * | 2018-12-28 | 2019-09-03 | 中国建材检验认证集团股份有限公司 | Test specimen is misfired performance test apparatus |
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