Rock sample grinding device

Abstract

The utility model provides a rock sample grinding device, which relates to the technical field of rock detection, and comprises a rack, the rack is rotatably provided with a support roller, a cutting and grinding mechanism and a rotating mechanism, the cutting and grinding mechanism comprises a cutting and grinding motor and a cutting and grinding knife, and the rotating mechanism comprises a sliding frame, a lifting cylinder, a rotating base, a rotating motor and a rotating assembly. The rotating assembly comprises a driving wheel, supporting beams, supporting wheels and a rotating ring belt, the driving wheel is connected to the rotating motor, the two supporting beams are symmetrically hinged to the driving wheel and extend outwards, the supporting wheels are rotationally connected to the ends, back to the driving wheel, of the supporting beams, and the rotating ring belt is wound around the driving wheel and the supporting wheels; the rotating ring belt is propped against the outer wall of the upper side of the rock core sample. In the cutting process, the rock core sample is driven to rotate on the supporting roller through the rotating assembly, and the situation that the edge of the brittle rock cracks is avoided in a circumferential cutting and grinding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of rock detection, in particular to a rock sample grinding device. Background Art

[0002] In various types of engineering construction, rock mechanics experiments and tests are experimental means of rock mechanics. They can help us understand the mechanical properties, deformation and failure laws of rocks and rock masses, as well as the various physical and mechanical effects caused by various structures on rock masses, and provide the necessary parameters for engineering design and construction.

[0003] In engineering rock mass tests, the engineering rock mass is usually cut and polished into standard cylindrical specimens. Existing cutting and polishing devices usually cut into the rock mass from one side until the rock column is cut off and then polished. However, the properties of engineering rock mass are different. Some engineering rock mass itself is brittle. When cutting and polishing to the lower edge of the rock mass, the lower edge of the engineering rock mass will crack, affecting the integrity of the engineering rock mass specimen and causing the specimen to be scrapped. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a rock sample flattening device, which solves the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A rock sample grinding device comprises a frame and a rock core sample, wherein the frame is rotatably mounted with two supporting rollers distributed side by side, and the rock core sample is placed on the two supporting rollers, and a cutting and grinding mechanism and a rotating mechanism are mounted on the frame, wherein the cutting and grinding mechanism comprises a cutting and grinding seat slidably mounted on the frame, a cutting and grinding motor fixed on the cutting and grinding seat, and a cutting and grinding knife connected to the output end of the cutting and grinding motor, and the rotating mechanism comprises a sliding frame, a lifting cylinder, a rotating base, a rotating motor and a rotating assembly, wherein the sliding frame is slidably connected to the frame, the lifting cylinder is fixedly mounted on the sliding frame, the rotating base is fixed on the cylinder arm of the lifting cylinder, the rotating motor is fixed on the rotating base, and the rotating assembly is connected to the output end of the rotating motor.

[0009] Preferably, the rotating assembly includes a driving wheel, a support beam, a support wheel and a rotating belt, the driving wheel is connected to a rotating motor, the support beam is arranged as two symmetrical hinges on the driving wheel and extend outward, the support wheel is rotatably connected to one end of the support beam facing away from the driving wheel, the rotating belt is wound around the driving wheel and the support wheel, and the rotating belt abuts against the upper outer wall of the rock core sample.

[0010] Preferably, a balancing mechanism is connected between the two support beams, and the balancing mechanism includes a balancing sleeve, a balancing rod and a balancing spring. One end of the balancing sleeve is hinged to the support beam on one side, and the balancing rod is slidably fitted in the balancing sleeve. The balancing spring is fixedly connected between the balancing sleeve and the balancing rod, and one end of the balancing rod away from the balancing sleeve is hinged to the support beam on the other side.

[0011] Preferably, a vertically arranged guide rail is provided on the rotating base, a guide slider is slidably connected to the guide rail, and the guide slider is horizontally slidably connected to the balancing sleeve.

[0012] Preferably, the cutting and grinding knife includes a cutting knife body, a grinding groove is opened on the side of the cutting knife body facing the rock core sample, a grinding plate is fixed in the grinding groove, the grinding plate protrudes from the front side of the cutting knife body, the edge of the grinding plate is set to an inclined arc, and the edge of the grinding plate is flush with the front side of the cutting knife body.

[0013] (III) Beneficial effects

[0014] The utility model provides a rock sample grinding device, which has the following beneficial effects:

[0015] 1. In the utility model, the rotating ring belt of the rotating assembly contacts the rock core sample and drives the rock core sample to rotate on the supporting roller. The cutting and grinding knife is rotated around the ring to cut and grind the rock core sample, so that the center position of the rock core sample is the final cutting position, thereby avoiding the sample being scrapped due to the collapse of unidirectional brittle rocks at the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The schematic diagram of the mechanism of a rock sample grinding device of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The schematic diagram of the mechanism of a rock sample grinding device of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 It is a structural schematic diagram of the rotating assembly in the utility model;

[0019] Figure 4 It is a cross-sectional view of the rotating assembly in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the cutting and grinding knife in the utility model.

[0021] In the figure: 1. frame; 2. rock core sample; 3. support roller; 4. cutter body; 5. grinding disc; 6. sliding frame; 7. lifting cylinder; 8. rotating base; 9. rotating motor; 10. driving wheel; 11. support beam; 12. support wheel; 13. rotating belt; 14. balancing sleeve; 15. balancing rod; 16. balancing spring; 17. guide rail. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a rock sample grinding device.

[0024] like Figure 1-2As shown, it includes a rock sample grinding device, including a frame 1 and a rock core sample 2, the frame 1 is rotatably installed with two supporting rollers 3 distributed side by side, the rock core sample 2 is placed on the two supporting rollers 3, the frame 1 is installed with a cutting and grinding mechanism and a rotating mechanism, the cutting and grinding mechanism includes a cutting and grinding seat slidably installed on the frame 1, a cutting and grinding motor fixed on the cutting and grinding seat, and a cutting and grinding knife connected to the output end of the cutting and grinding motor, the cutting and grinding knife includes a cutting knife body 4, the cutting knife body 4 is provided with a grinding groove on the side facing the rock core sample 2, a grinding sheet 5 is fixed in the grinding groove, and the grinding sheet 5 protrudes from the cutting knife body 4, the edge of the grinding sheet 5 is set to an inclined arc shape, the edge of the grinding sheet 5 is flush with the front side of the cutter body 4, the lower edge of the cutting knife is lower than the height of the axis of the rock core sample 2, the rotating mechanism includes a sliding frame 6, a lifting cylinder 7, a rotating base 8, a rotating motor 9 and a rotating assembly, the sliding frame 6 is slidably connected to the frame 1, the lifting cylinder 7 is fixedly installed on the sliding frame 6, the rotating base 8 is fixed on the cylinder arm of the lifting cylinder 7, the rotating motor 9 is fixed on the rotating base 8, and the rotating assembly is connected to the output end of the rotating motor 9. The rotating assembly includes a driving wheel 10, a support beam 11, a support wheel 12 and a rotating belt 13. The driving wheel 10 is connected to the rotating motor 9. The support beam 11 is set to be two symmetrically hinged on the driving wheel 10 and extending outward. The support wheel 12 is rotatably connected to one end of the support beam 11 facing away from the driving wheel 10. The rotating belt 13 is wound around the driving wheel 10 and the support wheel 12. The rotating belt 13 is against the outer wall of the upper side of the rock core sample 2. A balancing mechanism is connected between the two support beams 11. The balancing mechanism includes a balancing sleeve 14, a balancing rod 15 and a balancing spring Spring 16, one end of the balancing sleeve 14 is hinged on the support beam 11 on one side, the balancing rod 15 is slidably fitted in the balancing sleeve 14, the balancing spring 16 is fixedly connected between the balancing sleeve 14 and the balancing rod 15, one end of the balancing rod 15 away from the balancing sleeve 14 is hinged on the support beam 11 on the other side, a vertically arranged guide rail 17 is provided on the rotating base 8, a guide slider is slidably connected to the guide rail 17, a sliding slot hole is provided on the side of the balancing sleeve 14 facing the guide slider, and the guide block is slidably fitted and inserted in the sliding slot hole.

[0025] Working principle: In the utility model, the rock core sample 2 is placed between two supporting rollers 3, and the mobile sliding frame 6 slides on the frame 1 until the rotating assembly is set directly above the rock core sample 2. At this time, the lifting cylinder 7 descends, causing the supporting wheel 12 to descend until the rotating ring belt 13 contacts the upper surface of the rock core sample 2, and continues to descend until the rotating ring belt 13 is concave upward. At the same time, the supporting wheel 12 is hinged to separate to both sides under the support of the rock core sample 2, and the supporting beam 11 pulls the balancing device to gradually increase the pressure of the supporting wheels 12 on both sides on the rock core sample 2 while being equal, so that the force on the rock core sample is balanced, and the rotating motor 8 is started to rotate the rock core sample 2 through friction, and then the cutting and grinding knife is brought close to and contacts the cutting rock core sample 2, and the circumferential cutting is performed on the outer wall of the rock core sample 2 and gradually penetrates until the cutting reaches the axial position of the rock core sample 2 and cuts off. During the cutting process, the protruding grinding sheet 5 on the cutter body 4 contacts and grinds the cutting surface of the rock core sample 2, so that the cutting surface of the rock core sample meets the test requirements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rock sample grinding device, comprising a frame and a rock core sample, characterized in that: The frame is rotatably installed with two supporting rollers distributed side by side, and the rock core sample is placed on the two supporting rollers. A cutting and grinding mechanism and a rotating mechanism are installed on the frame. The cutting and grinding mechanism includes a cutting and grinding seat slidably installed on the frame, a cutting and grinding motor fixed on the cutting and grinding seat, and a cutting and grinding knife connected to the output end of the cutting and grinding motor. The rotating mechanism includes a sliding frame, a lifting cylinder, a rotating base, a rotating motor and a rotating assembly. The sliding frame is slidably connected to the frame, the lifting cylinder is fixedly installed on the sliding frame, the rotating base is fixed on the cylinder arm of the lifting cylinder, the rotating motor is fixed on the rotating base, and the rotating assembly is connected to the output end of the rotating motor.

2. A rock sample flattening device according to claim 1, characterized in that: The rotating assembly includes a driving wheel, a support beam, a support wheel and a rotating belt. The driving wheel is connected to a rotating motor. The support beam is arranged as two symmetrical hinges on the driving wheel and extend outward. The support wheel is rotatably connected to one end of the support beam facing away from the driving wheel. The rotating belt is wound around the driving wheel and the support wheel, and the rotating belt abuts against the upper outer wall of the rock core sample.

3. A rock sample flattening device according to claim 2, characterized in that: A balancing mechanism is connected between the two support beams, and the balancing mechanism includes a balancing sleeve, a balancing rod and a balancing spring. One end of the balancing sleeve is hinged to the support beam on one side, and the balancing rod is slidably fitted in the balancing sleeve. The balancing spring is fixedly connected between the balancing sleeve and the balancing rod, and one end of the balancing rod away from the balancing sleeve is hinged to the support beam on the other side.

4. A rock sample flattening device according to claim 3, characterized in that: The rotating base is provided with a vertically arranged guide rail, the guide rail is slidably connected with a guide slider, and the guide slider is horizontally slidably connected to the balancing sleeve.

5. A rock sample flattening device according to claim 4, characterized in that: The cutting and grinding knife includes a cutting knife body, a grinding groove is opened on the side of the cutting knife body facing the rock core sample, a grinding plate is fixed in the grinding groove, the grinding plate protrudes from the front side of the cutting knife body, the edge of the grinding plate is set to an inclined arc, and the edge of the grinding plate is flush with the front side of the cutting knife body.

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