Mohs hardness detection device

By designing a Mohs hardness detection device including a lifting mechanism, a transverse shift mechanism and a camera, the problem of cumbersome sand fixation and large errors in the prior art is solved, and more efficient and accurate sand hardness detection is achieved.

CN119555528AInactive Publication Date: 2025-03-04CHINA RAILWAY TEST & CERTIFICATION CENT LTD +1

Patent Information

Application Number
CN202411720591.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-03-04
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing Mohs hardness detection method is complicated to fix sand, with large errors and difficult operation, resulting in inaccurate detection data.

Method used

A Mohs hardness detection device is designed, including a lifting mechanism, a transverse shifting mechanism and a camera. The sand to be tested is fixed through the lifting mechanism, the transverse shifting mechanism is automatically scribed, and the test situation is observed and recorded using the camera.

Benefits of technology

The device can facilitate fixing of sand, improve detection efficiency and data accuracy, eliminate contact errors, and facilitate observation and recording of test conditions.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN119555528A_ABST
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Abstract

The invention provides a Mohs hardness detection device. The Mohs hardness detection device comprises a base, a lifting mechanism is mounted on the base, a pedestal is fixedly mounted at the top of the lifting mechanism, a side plate is fixedly mounted on one side of the base, a top plate is fixedly mounted at the top of the side plate, and a first transverse moving mechanism is arranged on the top plate; a second transverse moving mechanism is mounted on the first transverse moving mechanism, a mounting seat is mounted at the bottom of the second transverse moving mechanism, and a Mohs hardness pen is detachably mounted on the mounting seat. The Mohs hardness detection device provided by the invention has the advantages that sand can be conveniently fixed, and the detection process of a to-be-detected sample can be conveniently observed and recorded.
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Description

Technical Field

[0001] The invention relates to the technical field of sand hardness detection, in particular to a Mohs hardness detection device. Background Art

[0002] Mohs hardness is a scale for expressing the hardness of minerals, also known as Mohs hardness. It was first proposed by German mineralogist Frederick Mohs in 1822. It is a scale used in mineralogy or gemology.

[0003] In the prior art, when performing Mohs hardness testing on sand, it is relatively cumbersome to fix the sand due to the small volume of the sand. The existing Mohs hardness testing method has large errors and is difficult to operate, which easily leads to inaccurate test data.

[0004] Therefore, it is necessary to provide a new Mohs hardness testing device to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the invention is to provide a Mohs hardness testing device which can conveniently fix and test sand and conveniently observe and record the testing process of a sample to be tested.

[0006] In order to solve the above technical problems, the Mohs hardness testing device provided by the present invention comprises: a base, a lifting mechanism is installed on the base, a pedestal is fixedly installed on the top of the lifting mechanism, a side plate is fixedly installed on one side of the base, a top plate is fixedly installed on the top of the side plate, a first transverse movement mechanism is provided on the top plate, a second transverse movement mechanism is installed on the first transverse movement mechanism, a mounting seat is installed at the bottom of the second transverse movement mechanism, and a Mohs hardness pen is detachably installed on the mounting seat; The first transverse movement mechanism and the second transverse movement mechanism are both used to transversely move the mounting seat and the Mohs hardness pen in the horizontal direction, and the direction in which the first transverse movement mechanism transversely moves the mounting seat and the Mohs hardness pen in the horizontal direction is perpendicular to the direction in which the second transverse movement mechanism transversely moves the mounting seat and the Mohs hardness pen in the horizontal direction.

[0007] Preferably, a mounting groove is provided on the base, a curing agent is provided in the mounting groove, and the curing agent is used to fix the sand particles to be tested.

[0008] Preferably, a contact sensor is installed in the mounting seat, and the contact sensor is compatible with the Mohs hardness pen.

[0009] Preferably, the lifting mechanism includes an internally threaded rod rotatably installed in the base, the top end of the internally threaded rod extends to the top of the base, an externally threaded rod is installed on the internal thread of the internally threaded rod, the top end of the externally threaded rod extends to the outside of the internally threaded rod and is fixedly connected to the bottom of the pedestal, a limiting rod is fixedly installed in the base, the top end of the limiting rod extends into the externally threaded rod, the limiting rod is slidably connected to the externally threaded rod, and a rotating handle is fixedly installed on the outside of the internally threaded rod.

[0010] Preferably, the first transverse movement mechanism includes two first rotating seats fixedly mounted on the bottom of the top plate, and the same first screw is rotatably mounted on the two first rotating seats. A first motor is provided at one end of the first screw, and an output shaft of the first motor is fixedly connected to one end of the first screw. A first movable plate is provided on the outer threaded sleeve of the first screw, and the first movable plate is slidably connected to the bottom of the top plate.

[0011] Preferably, the second transverse movement mechanism includes two second rotating seats fixedly mounted on the bottom of the first movable plate, the same second screw is rotatably mounted on the two second rotating seats, a second motor is provided at one end of the second screw, the output shaft of the second motor is fixedly connected to one end of the second screw, a second movable plate is provided on the outer threaded sleeve of the second screw, the second movable plate is slidably connected to the bottom of the first movable plate, and the mounting seat is fixedly mounted on the bottom of the second movable plate.

[0012] Preferably, a mounting hole is provided at the bottom of the mounting seat, a limiting protrusion is provided on the Mohs hardness pen, a limiting block is fixedly installed on the inner wall of the mounting hole, a T-block is provided on the outer sliding sleeve of the limiting block, the T-block is adapted to the limiting protrusion, one end of a spring is installed on the limiting block, and the other end of the spring is fixedly installed on the T-block.

[0013] Preferably, a camera is installed below the top plate, and the camera faces the Mohs hardness pen.

[0014] Compared with the related art, the Mohs hardness testing device provided by the present invention has the following beneficial effects: The present invention provides a Mohs hardness testing device, which can conveniently fix sand, thereby improving the detection efficiency of sand hardness and the accuracy of sand hardness detection data; a lifting mechanism composed of an internal threaded rod, an external threaded rod, a limit rod and a rotating handle in cooperation with a contact sensor can conveniently bring a Mohs hardness pen into contact with sand to be tested, thereby ensuring that the test contact force is the same and eliminating the error caused by the contact; a first transverse movement mechanism composed of a first rotating seat, a first lead screw, a first motor and a first moving plate and a second transverse movement mechanism composed of a second rotating seat, a second lead screw, a second motor and a second moving plate can automatically scratch the sand; and a camera can be used to observe and record the test situation of the surface of the sample to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a preferred embodiment of the Mohs hardness testing device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the connection structure between the lifting mechanism and the base shown; Figure 3 for Figure 1 A schematic diagram of the connection structure of the top plate, the first transverse movement mechanism, the second transverse movement mechanism, the mounting seat and the Mohs hardness pen shown; Figure 4 for Figure 3 A schematic diagram of the side view connection structure of the second transverse movement mechanism, the mounting seat and the Mohs hardness pen shown; Figure 5 for Figure 1 A schematic diagram of the connection structure between the mounting base and the Mohs hardness pen shown; Figure 6 for Figure 5 An enlarged schematic diagram of the structure of part A is shown; Figure 7 for Figure 1 A schematic diagram of the top view of the pedestal shown.

[0016] Numbers in the figure: 1. base, 2. lifting mechanism, 21. internal threaded rod, 22. external threaded rod, 23. limit rod, 24. rotating handle, 3. pedestal, 4. side plate, 5. top plate, 6. first transverse movement mechanism, 61. first rotating seat, 62. first lead screw, 63. first motor, 64. first movable plate, 7. second transverse movement mechanism, 71. second rotating seat, 72. second lead screw, 73. second motor, 74. second movable plate, 8. mounting seat, 9. Mohs hardness pen, 10. mounting groove, 11. curing agent, 12. contact sensor, 13. limit protrusion, 14. limit block, 15. T-block, 16. spring, 17. camera. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the Mohs hardness testing device provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the connection structure between the lifting mechanism and the base shown; Figure 3 for Figure 1 A schematic diagram of the connection structure of the top plate, the first transverse movement mechanism, the second transverse movement mechanism, the mounting seat and the Mohs hardness pen shown; Figure 4 for Figure 3 A schematic diagram of the side view connection structure of the second transverse movement mechanism, the mounting seat and the Mohs hardness pen shown; Figure 5 for Figure 1 A schematic diagram of the connection structure between the mounting base and the Mohs hardness pen shown; Figure 6 for Figure 5 An enlarged schematic diagram of the structure of part A is shown; Figure 7 for Figure 1 The schematic diagram of the top structure of the pedestal shown in the figure. The Mohs hardness testing device comprises: a base 1, a lifting mechanism 2 is installed on the base 1, a pedestal 3 is fixedly installed on the top of the lifting mechanism 2, a side plate 4 is fixedly installed on one side of the base 1, a top plate 5 is fixedly installed on the top of the side plate 4, a first transverse mechanism 6 is provided on the top plate 5, a second transverse mechanism 7 is installed on the first transverse mechanism 6, a mounting seat 8 is installed at the bottom of the second transverse mechanism 7, and a Mohs hardness pen 9 is detachably installed on the mounting seat 8; The first transverse movement mechanism 6 and the second transverse movement mechanism 7 are both used to transversely move the mounting seat 8 and the Mohs hardness pen 9 in the horizontal direction. The direction in which the first transverse movement mechanism 6 transversely moves the mounting seat 8 and the Mohs hardness pen 9 in the horizontal direction is perpendicular to the direction in which the second transverse movement mechanism 7 transversely moves the mounting seat 8 and the Mohs hardness pen 9 in the horizontal direction.

[0019] The base 3 is provided with a mounting groove 10 , in which a curing agent 11 is arranged, and the curing agent 11 is used to fix the sand particles to be tested.

[0020] A contact sensor 12 is installed in the mounting seat 8 , and the contact sensor 12 is compatible with the Mohs hardness pen 9 .

[0021] The lifting mechanism 2 includes an internally threaded rod 21 rotatably installed in the base 1, the top end of the internally threaded rod 21 extends to the top of the base 1, an externally threaded rod 22 is installed on the internal thread of the internally threaded rod 21, the top end of the externally threaded rod 22 extends to the outside of the internally threaded rod 21 and is fixedly connected to the bottom of the pedestal 3, a limiting rod 23 is fixedly installed in the base 1, the top end of the limiting rod 23 extends into the externally threaded rod 22, the limiting rod 23 is slidably connected to the externally threaded rod 22, and a rotating handle 24 is fixedly installed on the outside of the internally threaded rod 21.

[0022] The first transverse movement mechanism 6 includes two first rotating seats 61 fixedly mounted on the bottom of the top plate 5, and the same first screw 62 is rotatably mounted on the two first rotating seats 61. A first motor 63 is provided at one end of the first screw 62, and the output shaft of the first motor 63 is fixedly connected to one end of the first screw 62. A first movable plate 64 is provided on the outer threaded sleeve of the first screw 62, and the first movable plate 64 is slidably connected to the bottom of the top plate 5.

[0023] The second transverse movement mechanism 7 includes two second rotating seats 71 fixedly mounted on the bottom of the first movable plate 64, and the same second screw 72 is rotatably mounted on the two second rotating seats 71. A second motor 73 is provided at one end of the second screw 72, and the output shaft of the second motor 73 is fixedly connected to one end of the second screw 72. A second movable plate 74 is provided on the outer threaded sleeve of the second screw 72. The second movable plate 74 is slidably connected to the bottom of the first movable plate 64, and the mounting seat 8 is fixedly mounted on the bottom of the second movable plate 74.

[0024] A mounting hole is provided at the bottom of the mounting seat 8, a limiting protrusion 13 is provided on the Mohs hardness pen 9, a limiting block 14 is fixedly installed on the inner wall of the mounting hole, a T-block 15 is provided on the outer sliding sleeve of the limiting block 14, the T-block 15 is adapted to the limiting protrusion 13, one end of a spring 16 is installed on the limiting block 14, and the other end of the spring 16 is fixedly installed on the T-block 15.

[0025] A camera 17 is installed below the top plate 5 , and the camera 17 faces the Mohs hardness pen 9 .

[0026] This embodiment mainly includes a detection platform composed of a base 1, a lifting mechanism 2, a pedestal 3, a mounting groove 10, a curing agent 11, a contact sensor 12, and a video camera (camera 17). This enables sample preparation, detection, and result recording. Specifically: Sample preparation: Figure 7As shown, the top of the pedestal 3 is provided with a mounting groove 10, and the mounting groove 10 is provided with a curing resin (curing agent 11) for fixing the sand particles to keep them horizontal, and the pedestal 3 is provided with four fixing holes for connecting the pedestal 3 with the top of the external threaded rod 22. After curing and hardening (the curing time is controllable), the sample can remain stable, which is convenient for hardness testing. Several samples to be tested can be cured at the same time.

[0027] The height of the stand 3 can be adjusted by the lifting mechanism 2, roughly adjusted to be close to the surface of the Mohs hardness pen 9, and then finely adjusted by the contact sensor 12 so that the hardness pen just touches the surface of the sample.

[0028] The base 3 is provided with a curing agent installation groove 10, through which the curing agent can be installed, and the hardened curing agent and the sample can be poured out.

[0029] Mohs hardness pen: The connection with the mounting base 8 is snap-on, and Mohs hardness pens No. 1 to 10 can be installed interchangeably. There is a contact sensor connection above the probe (the contact force value can be set) to ensure that the probe with the hardness pen just touches the sample (the contact force is adjustable and controllable), ensuring that the test contact force is the same and eliminating the error caused by the contact.

[0030] After the Mohs hardness pen contacts the sample, it can be moved horizontally or vertically in the horizontal plane through the first transverse movement mechanism 6 and the second transverse movement mechanism 7 to scratch, and then the scratches can be observed after being magnified through the display.

[0031] Mohs hardness pen snap-on installation, direct plug and unplug.

[0032] Through the camera 17, the test condition of the surface of the sample under test can be photographed and displayed on the display screen of the Mohs hardness pen, which is convenient for observation and photographic recording.

[0033] Compared with the related art, the Mohs hardness testing device provided by the present invention has the following beneficial effects: The present invention provides a Mohs hardness detection device, which can fix sand more conveniently, thereby improving the detection efficiency of sand hardness and the accuracy of sand hardness detection data; the lifting mechanism 2 composed of an internal threaded rod 21, an external threaded rod 22, a limit rod 23 and a rotating handle 24 cooperates with a contact sensor 12 to facilitate the Mohs hardness pen 9 to just contact with the sand to be tested, thereby ensuring that the test contact force is the same and eliminating the error caused by the contact; the first transverse movement mechanism 6 composed of a first rotating seat 61, a first screw 62, a first motor 63, and a first movable plate 64 and the second transverse movement mechanism 7 composed of a second rotating seat 71, a second screw 72, a second motor 73, and a second movable plate 74 can automatically scratch the sand; the camera 17 can observe and record the test situation of the surface of the sample to be tested.

[0034] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A Mohs hardness testing device, characterized in that: include: A base, a lifting mechanism is installed on the base, a pedestal is fixedly installed on the top of the lifting mechanism, a side plate is fixedly installed on one side of the base, a top plate is fixedly installed on the top of the side plate, a first transverse movement mechanism is provided on the top plate, a second transverse movement mechanism is installed on the first transverse movement mechanism, a mounting seat is installed at the bottom of the second transverse movement mechanism, and a Mohs hardness pen is detachably installed on the mounting seat; The first transverse movement mechanism and the second transverse movement mechanism are both used to transversely move the mounting seat and the Mohs hardness pen in the horizontal direction, and the direction in which the first transverse movement mechanism transversely moves the mounting seat and the Mohs hardness pen in the horizontal direction is perpendicular to the direction in which the second transverse movement mechanism transversely moves the mounting seat and the Mohs hardness pen in the horizontal direction.

2. The Mohs hardness testing device according to claim 1, characterized in that: The pedestal is provided with an installation groove, in which a curing agent is arranged, and the curing agent is used to fix the sand particles to be tested.

3. The Mohs hardness testing device according to claim 1, characterized in that: A contact sensor is installed in the mounting seat, and the contact sensor is compatible with the Mohs hardness pen.

4. The Mohs hardness testing device according to claim 1, characterized in that: The lifting mechanism includes an internally threaded rod rotatably installed in the base, the top end of the internally threaded rod extends to the top of the base, an externally threaded rod is installed on the internal thread of the internally threaded rod, the top end of the externally threaded rod extends to the outside of the internally threaded rod and is fixedly connected to the bottom of the pedestal, a limiting rod is fixedly installed in the base, the top end of the limiting rod extends into the externally threaded rod, the limiting rod is slidably connected to the externally threaded rod, and a rotating handle is fixedly installed on the outside of the internally threaded rod.

5. The Mohs hardness testing device according to claim 1, characterized in that: The first transverse movement mechanism includes two first rotating seats fixedly mounted on the bottom of the top plate, and the same first screw is rotatably mounted on the two first rotating seats. A first motor is provided at one end of the first screw, and an output shaft of the first motor is fixedly connected to one end of the first screw. A first movable plate is provided on the outer threaded sleeve of the first screw, and the first movable plate is slidably connected to the bottom of the top plate.

6. The Mohs hardness testing device according to claim 5, characterized in that: The second transverse movement mechanism includes two second rotating seats fixedly mounted on the bottom of the first movable plate, and the same second screw is rotatably mounted on the two second rotating seats. A second motor is provided at one end of the second screw, and an output shaft of the second motor is fixedly connected to one end of the second screw. A second movable plate is provided on the outer threaded sleeve of the second screw, and the second movable plate is slidably connected to the bottom of the first movable plate, and the mounting seat is fixedly mounted on the bottom of the second movable plate.

7. The Mohs hardness testing device according to claim 1, characterized in that: A mounting hole is provided at the bottom of the mounting seat, a limiting protrusion is provided on the Mohs hardness pen, a limiting block is fixedly installed on the inner wall of the mounting hole, a T-block is provided on the outer sliding sleeve of the limiting block, the T-block is adapted to the limiting protrusion, one end of a spring is installed on the limiting block, and the other end of the spring is fixedly installed on the T-block.

8. The Mohs hardness testing device according to claim 1, characterized in that: A camera is installed below the top plate, and the camera faces the Mohs hardness pen.

Citation Information

Patent Citations

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  • High-precision sandy soil single-particle axial loading device

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