Sample grinding device for chemical detection

Abstract

The utility model provides a sample grinding device for chemical detection, and relates to the technical field of grinding machines. The rotating disc is rotationally connected to the upper surface of the base and used for bearing the grinding disc to rotate; the grinding disc is detachably mounted on the surface of the rotating disc, and a chemical sample can be placed in the grinding disc; the support is fixedly connected to the upper surface of the base and supports the second motor and the screw to rotate; the screw rod is in threaded connection with the inner wall of the bracket and drives the first motor to move; the control disc is fixedly connected to one end of the screw rod, so that a worker can rotate the screw rod conveniently; the first motor is fixedly connected to the other end of the screw rod and drives the driving shaft to rotate; the driving shaft is a shaft rod fixedly connected to the output end of the first motor and used for driving the grinding roller to rotate. The utility model solves the problems that in the grinding process of the grinding machine, powder of a chemical sample can be stirred out of the grinding disc by the quickly rotating grinding roller and falls on a test bed, so that the powder is inconvenient to clean by a worker.

Description

Technical Field

[0001] The utility model relates to the technical field of grinders, in particular to a sample grinding device for chemical testing. Background Art

[0002] A grinder is a device used to grind, grind or crush materials. It is commonly used in the pharmaceutical, chemical, food processing and other industries. The grinder can grind raw materials into finer particles or powders to meet the needs of different production processes. In chemical testing and inspection work, the samples need to be ground before testing.

[0003] The Chinese patent document with the authorization announcement number CN218742246U discloses a sample grinding device, including a base, a grinding cylinder is rotatably provided at the top of the base, and the top of the grinding cylinder is an open structure, an L-shaped plate is fixedly provided on one side of the top of the base, a device for rotating the grinding cylinder is provided on the L-shaped plate, a mounting hole is provided at the top of the horizontal part of the L-shaped plate, the mounting hole is located directly above the grinding cylinder, a connecting rod is inserted in the mounting hole, a motor 2 is fixedly provided at the bottom end of the connecting rod, a rotating rod is fixedly connected to one end of the output shaft of the motor 2, a grinding disc is fixedly provided at the bottom end of the rotating rod, and a threaded cylinder corresponding to the mounting hole is fixedly connected to the top of the horizontal part of the L-shaped plate. The utility model is provided with a grinding cylinder, seeds are placed in the grinding cylinder, the grinding disc is moved down into the grinding cylinder by the connecting rod, and the motor 2 is started to drive the grinding disc to rotate, so that the seeds can be automatically ground and crushed, which saves time and effort, and has a simple and convenient structure.

[0004] Regarding the above technical solution, there are the following defects in use: in order to facilitate the detection of chemical samples, it is necessary to use a grinder to grind the chemical samples into powder for detection to improve the efficiency of chemical detection. During the grinding process of the grinder, the powder of the chemical sample will be stirred out of the grinding disk by the rapidly rotating grinding roller and fall on the test bench, which is inconvenient for the staff to clean up. Utility Model Content

[0005] The utility model provides a sample grinding device for chemical testing, which solves the problems raised by the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] The embodiment of the utility model provides a sample grinding device for chemical testing, comprising:

[0008] Base;

[0009] A rotating disc is rotatably connected to the upper surface of the base to realize the rotation of the bearing grinding disc;

[0010] The grinding disc can be installed and removed on the surface of the rotating disc, and the chemical sample can be placed in the grinding disc;

[0011] A bracket, fixedly connected to the upper surface of the base, supports the second motor and the screw to rotate;

[0012] A screw rod is threadedly connected to the inner wall of the bracket to drive the first motor to move;

[0013] The control panel is fixedly connected to one end of the screw rod to facilitate the staff to rotate the screw rod;

[0014] A first motor is fixedly connected to the other end of the screw rod to drive the driving shaft to rotate;

[0015] A driving shaft, fixedly connected to the output end of the first motor, driving the grinding roller to rotate;

[0016] The grinding roller is fixedly connected to one end of the driving shaft to grind the chemical sample in the grinding disc;

[0017] The second motor is fixedly connected to the surface of the bracket to realize the rotation of the driving gear;

[0018] The gear is fixedly connected to the output end of the second motor and cooperates with the gear ring to drive the rotating disk to rotate;

[0019] The gear ring is fixedly connected to the surface of the rotating disk and meshes with the gear, and cooperates with the gear to drive the rotating disk to rotate;

[0020] A covering device is arranged on the surface of the driving shaft to cover the surface of the grinding disc;

[0021] The protective device is arranged on the surface of the base to protect the gear and the gear ring.

[0022] Furthermore, the covering device includes a covering plate, which is rotatably and slidably connected to the driving shaft, the surface of the covering plate is fixedly connected to a limiting plate, the inner wall of the limiting plate is slidably connected to two fixing pins, one end of the two fixing pins is fixedly connected to a fixing plate, and two fixing holes are provided on the surface of the rotating plate, and the size of the fixing holes is adapted to the size of the fixing pins.

[0023] During grinding, the cover disc shields the grinding disc, reducing the powder in the grinding disc that is rolled out by the rotating grinding roller, effectively preventing some toxic chemical sample powders from being inhaled by the staff, and ensuring the safety of the staff during chemical sample testing.

[0024] Furthermore, a limiting block is fixedly connected to the surface of the cover plate, a limiting pin is slidably connected to the inner wall of the limiting block, a limiting hole is provided on the surface of the first motor, and a size of the limiting pin matches a size of the limiting hole.

[0025] Furthermore, a screw rod is rotatably connected to the surface of the limit plate, the screw rod is threadedly connected to the fixing plate, and one end of the screw rod is fixedly connected to a handle.

[0026] Furthermore, a sealing ring is fixedly connected to the surface of the covering plate.

[0027] Furthermore, the protective device includes a transfer rod, which is fixedly connected to the base, and the arc surface of the transfer rod is rotatably connected to two protective covers, the surface of the protective cover is fixedly connected to a clamping rod, the inner wall of the base is fixedly connected to two springs, and one end of the two springs is fixedly connected to a clamping plate.

[0028] The protective cover covers the gears and gear rings inside, which not only protects the staff, but also protects the gears and gear rings to avoid damage to the gears and gear rings, effectively improving the stability of the operation of the gears and gear rings.

[0029] Furthermore, a round block is fixedly connected to the surface of the clamping plate, and a pressing plate is fixedly connected to the surface of the round block.

[0030] Furthermore, a plurality of ventilation holes are provided on the surface of the protective cover.

[0031] The above solution of the utility model includes at least the following beneficial effects:

[0032] 1. The utility model provides a covering device to effectively reduce the powder of the grinding disc rolled out by the grinding roller when the grinding roller grinds the chemical sample in the grinding disc, so that the chemical sample powder will not splash on the surface of the test bench, and the staff does not need to clean it.

[0033] 2. The utility model provides a protective device to protect the gears and gear rings exposed to the outside, thereby preventing the workers from being pinched by the rotating gears and gear rings when installing the grinding disc, thereby ensuring the safety of the workers' operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 This utility model Figure 1 Schematic diagram of the local structure;

[0036] Figure 3 It is a structural schematic diagram of the cover plate of the utility model;

[0037] Figure 4 This is a schematic structural diagram of the cover plate of the utility model from another viewing angle;

[0038] Figure 5It is a structural schematic diagram of the limit plate of the utility model;

[0039] Figure 6 It is a schematic diagram of the structure of the protective cover of the utility model;

[0040] Figure 7 It is a structural schematic diagram of the utility model card board;

[0041] Figure 8 This utility model Figure 1 Enlarged view of point A.

[0042] Description of reference numerals:

[0043] 1. Base; 2. Rotating disk; 3. Grinding disk; 4. Grinding roller; 5. Driving shaft; 6. First motor; 7. Screw; 8. Covering device; 801. Covering disk; 802. Limiting plate; 803. Fixing plate; 804. Screw; 805. Handle; 806. Fixing pin; 807. Fixing hole; 808. Limiting block; 809. Limiting pin; 810. Limiting hole; 811. Sealing ring; 9. Protective device; 91. Adapter rod; 92. Protective cover; 93. Ventilation hole; 94. Clamping rod; 95. Spring; 96. Clamping plate; 97. Round block; 98. Pressing plate; 10. Control panel; 11. Bracket; 12. Second motor; 13. Gear; 14. Gear ring. DETAILED DESCRIPTION

[0044] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0045] like Figure 1 to Figure 2As shown, an embodiment of the utility model provides a sample grinding device for chemical testing, comprising: a base 1; a rotating disk 2, which is rotatably connected to the upper surface of the base 1 to realize the rotation of the bearing grinding disk 3; the grinding disk 3 can be installed and removed on the surface of the rotating disk 2, and the chemical sample can be placed in the grinding disk 3; a bracket 11, which is fixedly connected to the upper surface of the base 1, and supports the second motor 12 and the screw 7 to rotate; the screw 7 is threadedly connected to the inner wall of the bracket 11 to drive the first motor 6 to move; a control plate 10, which is fixedly connected to one end of the screw 7, so that the staff can rotate the screw 7 conveniently; the first motor 6, which is fixedly connected to the other end of the screw 7, drives the drive shaft 5 to rotate; the drive shaft 5 is fixedly connected to the inner wall of the bracket 11, and drives the first motor 6 to rotate. A shaft connected to the output end of the first motor 6 drives the grinding roller 4 to rotate; the grinding roller 4 is fixedly connected to one end of the driving shaft 5 to grind the chemical sample in the grinding disk 3; the second motor 12 is fixedly connected to the surface of the bracket 11 to drive the gear 13 to rotate; the gear 13 is fixedly connected to the output end of the second motor 12, and cooperates with the gear ring 14 to drive the rotating disk 2 to rotate; the gear ring 14 is fixedly connected to the surface of the rotating disk 2 and meshingly connected with the gear 13, and cooperates with the gear 13 to drive the rotating disk 2 to rotate; the covering device 8 is arranged on the surface of the driving shaft 5 to shield the surface of the grinding disk 3; the protective device 9 is arranged on the surface of the base 1 to protect the gear 13 and the gear ring 14.

[0046] like Figures 3 to 5As shown, the covering device 8 includes a covering disk 801, which is rotatably and slidably connected to the driving shaft 5. The surface of the covering disk 801 is fixedly connected to a limiting plate 802. The inner wall of the limiting plate 802 is slidably connected to two fixing pins 806. One end of the two fixing pins 806 is fixedly connected to a fixing plate 803. Two fixing holes 807 are provided on the surface of the rotating disk 2. The size of the fixing holes 807 matches the size of the fixing pins 806. When testing the chemical sample, the staff places the grinding disk 3 containing the chemical sample on the rotating disk 2. The disc 3 is fixedly mounted on the rotating disc 2, and then the screw 7 on the rotating bracket 11 is rotated by rotating the control disc 10, and the screw 7 drives the first motor 6 to move downward, and then the cover disc 801 is covered on the surface of the grinding disc 3, and the fixing pin 806 on the fixing plate 803 penetrates the limiting plate 802 and is inserted into the fixing hole 807 to fix and limit the cover disc 801, and the first motor 6 drives the driving shaft 5 to rotate, drives the grinding disc 3 to rotate, and grinds the chemical sample in the grinding disc 3, and at the same time the second motor 12 drives the gear 13 to rotate, and the gear 13 drives the gear ring 14, so that The rotating disk 2 is driven to rotate to improve the grinding efficiency. After the grinding is completed, the fixing pin 806 is pulled out from the fixing hole 807, and the covering disk 801 is moved upward, and the staff can take out the grinding disk 3. The surface of the covering disk 801 is fixedly connected to the limiting block 808, and the inner wall of the limiting block 808 is slidably connected to the limiting pin 809. The surface of the first motor 6 is provided with a limiting hole 810, and the size of the limiting pin 809 is matched with the size of the limiting hole 810. Then the limiting pin 809 passes through the limiting block 808 and is inserted into the limiting hole 810 to tighten the covering disk 801. The limit plate 802 is rotatably connected to the surface of the limit plate 802, and the screw rod 804 is threadedly connected to the fixed plate 803. One end of the screw rod 804 is fixedly connected to a handle 805, and then the screw rod 804 is rotated by the handle 805, and the screw rod 804 drives the fixed plate 803 to move. When the fixing pin 806 is inserted into the fixing hole 807, the screw rod 804 locks the fixed plate 803, and the surface of the covering disk 801 is fixedly connected to a sealing ring 811. The sealing ring 811 on the covering disk 801 makes the surface of the covering disk 801 covering the grinding disk 3 more sealed.

[0047] In the embodiment of the utility model, when testing the chemical sample, the staff places the grinding disc 3 containing the chemical sample on the rotating disc 2, and fixes the grinding disc 3 on the rotating disc 2. Then, the staff rotates the screw 7 on the rotating bracket 11 by rotating the control disc 10, and the screw 7 drives the first motor 6 to move downward. Then, the cover disc 801 is covered on the surface of the grinding disc 3, and the sealing ring 811 on the cover disc 801 makes the cover disc 801 cover the surface of the grinding disc 3 more tightly. Then, the screw rod 804 is rotated by the handle 805, and the screw rod 804 drives the fixed plate 803 to move. When the fixing pin 806 is inserted into the fixing hole 807, the screw rod 804 is pressed against the fixing plate 803. Locking, the fixing pin 806 on the fixing plate 803 passes through the limiting plate 802 and is inserted into the fixing hole 807 to fix and limit the covering plate 801. The first motor 6 drives the driving shaft 5 to rotate, drives the grinding plate 3 to rotate, and grinds the chemical sample in the grinding plate 3. At the same time, the second motor 12 drives the gear 13 to rotate, and the gear 13 drives the gear ring 14, thereby driving the rotating plate 2 to rotate, thereby improving the grinding efficiency. After the grinding is completed, the fixing pin 806 is pulled out of the fixing hole 807, and the covering plate 801 is moved upward. Then the limiting pin 809 passes through the limiting block 808 and is inserted into the limiting hole 810 to limit the covering plate 801. The staff can then take out the grinding plate 3.

[0048] like Figures 6 to 8 As shown, the protective device 9 includes a transfer rod 91, which is fixedly connected to the base 1. The arc surface of the transfer rod 91 is rotatably connected to two protective covers 92. The surface of the protective cover 92 is fixedly connected to a clamping rod 94. The inner wall of the base 1 is fixedly connected to two springs 95. One end of the two springs 95 is fixedly connected to a clamping plate 96. When the gear 13 and the gear ring 14 fail, the clamping plate 96 is pressed down, the spring 95 contracts, and the clamping plate 96 no longer clamps the clamping rod 94. Then, the protective cover 92 is rotated along the transfer rod 91, and the staff can repair the gear 13 and the gear ring 14. After the maintenance is completed, the protective cover 92 is rotated to the position where the card plate 96 clamps the clamping rod 94, and the protective cover 92 can protect the gear 13 and the gear ring 14. A round block 97 is fixedly connected to the surface of the card plate 96, and a pressing plate 98 is fixedly connected to the surface of the round block 97. By pressing the pressing plate 98 and the round block 97, pressure is applied to the card plate 96 to facilitate pressing the card plate 96 down. A plurality of ventilation holes 93 are opened on the surface of the protective cover 92. The ventilation holes 93 on the protective cover 92 allow air to circulate in the protective cover 92, so that the heat generated by the friction between the gear 13 and the gear ring 14 can be quickly dissipated.

[0049] In the embodiment of the utility model, when the gear 13 and the gear ring 14 fail, pressure is applied to the card plate 96 by pressing the pressing plate 98 and the round block 97, so as to facilitate pressing down the card plate 96. When the card plate 96 is pressed down, the spring 95 contracts, and the card plate 96 no longer clamps the clamping rod 94. Then, the protective cover 92 is rotated along the transfer rod 91, and the staff can repair the gear 13 and the gear ring 14. After the repair is completed, the protective cover 92 is rotated to the position where the card plate 96 clamps the clamping rod 94, and the protective cover 92 can protect the gear 13 and the gear ring 14. The ventilation holes 93 on the protective cover 92 allow air to circulate in the protective cover 92, so that the heat generated by the friction between the gear 13 and the gear ring 14 can be quickly dissipated.

[0050] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sample grinding device for chemical testing, characterized in that: include: Base (1); A rotating disc (2) is rotatably connected to the upper surface of the base (1) to realize the rotation of the bearing grinding disc (3); A grinding disc (3) can be installed and removed on the surface of the rotating disc (2), and a chemical sample can be placed in the grinding disc (3); A bracket (11) is fixedly connected to the upper surface of the base (1) and supports the second motor (12) and the screw rod (7) to rotate; A screw rod (7) is threadedly connected to the inner wall of the bracket (11) to drive the first motor (6) to move; A control panel (10) is fixedly connected to one end of the screw rod (7) to facilitate the staff to rotate the screw rod (7); A first motor (6) is fixedly connected to the other end of the screw rod (7) to drive the driving shaft (5) to rotate; A driving shaft (5) is fixedly connected to the output end of the first motor (6) and is a shaft that drives the grinding roller (4) to rotate; A grinding roller (4) is fixedly connected to one end of a driving shaft (5) to grind the chemical sample in the grinding disc (3); A second motor (12) is fixedly connected to the surface of the bracket (11) to realize the rotation of the driving gear (13); The gear (13) is fixedly connected to the output end of the second motor (12) and cooperates with the gear ring (14) to drive the rotating disk (2) to rotate; A gear ring (14) is fixedly connected to the surface of the rotating disk (2) and meshed with the gear (13), and cooperates with the gear (13) to drive the rotating disk (2) to rotate; A covering device (8) is arranged on the surface of the driving shaft (5) to cover the surface of the grinding disc (3); The protection device (9) is arranged on the surface of the base (1) and protects the gear (13) and the gear ring (14).

2. A sample grinding device for chemical testing according to claim 1, characterized in that: The covering device (8) comprises a covering disk (801), the covering disk (801) is rotatably and slidably connected to the driving shaft (5), the surface of the covering disk (801) is fixedly connected to a limiting plate (802), the inner wall of the limiting plate (802) is slidably connected to two fixing pins (806), one end of the two fixing pins (806) is fixedly connected to a fixing plate (803), and the surface of the rotating disk (2) is provided with two fixing holes (807), the size of the fixing holes (807) is adapted to the size of the fixing pins (806).

3. A sample grinding device for chemical testing according to claim 2, characterized in that: A limiting block (808) is fixedly connected to the surface of the cover plate (801), a limiting pin (809) is slidably connected to the inner wall of the limiting block (808), a limiting hole (810) is provided on the surface of the first motor (6), and the size of the limiting pin (809) is matched with the size of the limiting hole (810).

4. A sample grinding device for chemical testing according to claim 2, characterized in that: A screw rod (804) is rotatably connected to the surface of the limiting plate (802), the screw rod (804) is threadedly connected to the fixing plate (803), and one end of the screw rod (804) is fixedly connected to a handle (805).

5. A sample grinding device for chemical testing according to claim 2, characterized in that: A sealing ring (811) is fixedly connected to the surface of the covering plate (801).

6. A sample grinding device for chemical testing according to claim 2, characterized in that: The protective device (9) comprises a transfer rod (91), the transfer rod (91) is fixedly connected to the base (1), the arc surface of the transfer rod (91) is rotatably connected to two protective covers (92), the surface of the protective cover (92) is fixedly connected to a clamping rod (94), the inner wall of the base (1) is fixedly connected to two springs (95), and one end of the two springs (95) is fixedly connected to a clamping plate (96).

7. A sample grinding device for chemical testing according to claim 6, characterized in that: A round block (97) is fixedly connected to the surface of the clamping plate (96), and a pressing plate (98) is fixedly connected to the surface of the round block (97).

8. A sample grinding device for chemical testing according to claim 6, characterized in that: A plurality of ventilation holes (93) are provided on the surface of the protective cover (92).

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