A grinding device for mineral powder

Abstract

This utility model provides a stone powder grinding device for mining. During operation, material is fed into the feed hopper, and a first motor and a second motor drive the rotating roller and grinding roller to rotate respectively to perform material grinding. The position of the adjusting frame can be adjusted by the adjusting mechanism to adjust the distance between the grinding roller and the rotating roller. Several springs drive the sliding frame to elastically abut against the abutment plate, so that the grinding roller can adaptively adjust the distance between the grinding roller and the rotating roller according to the size of the material, reducing the impact of the material on the grinding roller and the rotating roller, which helps to improve the service life of the grinding roller and the rotating roller. Furthermore, the preload of the springs can be adjusted by the preload mechanism to adjust the preload during the adaptive movement of the grinding roller as needed, which not only improves the service life of the grinding roller and the rotating roller, but also improves its grinding effect. It is suitable for grinding stone powder of various sizes and has good versatility.

Description

Technical Field

[0001] This utility model relates to the field of ore processing technology, specifically to a grinding device for ore powder. Background Technology

[0002] Mineral powder is a general term for stone powder and its substitutes that meet engineering requirements. It is the product of crushing and processing ores and is the first and one of the most important steps in ores processing and smelting. After preliminary crushing, mineral powder still contains large particles of ore and needs to be ground more finely. Most existing mineral powder grinding devices use grinding rollers for grinding, which generally utilizes the squeezing between two grinding rollers and the friction of the material to achieve grinding. However, the structure of existing equipment is fixed, making it difficult to adjust the interval between the two grinding rollers as needed. The ground material cannot meet the grinding requirements of technicians, and it is often necessary to purchase and use multiple devices to meet the grinding requirements of technicians for different mineral powders, which is costly and not conducive to production and processing. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a grinding device for mineral powder, thereby solving the problems described above.

[0004] This utility model provides a grinding device for mineral powder, comprising:

[0005] The machine casing has a feed hopper at its upper end;

[0006] A rotating roller is rotatably mounted on the housing, and the housing is equipped with a first motor for driving the rotating roller to rotate;

[0007] An adjusting frame is movably mounted on the machine housing. A sliding frame is movably mounted on the adjusting frame. A grinding roller is rotatably mounted on the sliding frame. A second motor for driving the grinding roller to rotate is mounted on the sliding frame. Several springs are mounted on the sliding frame. An abutment plate is mounted on the adjusting frame for the sliding frame to abut against. The several springs push against the sliding frame to drive the sliding frame closer to the rotating roller and abut against the abutment plate.

[0008] An adjustment mechanism is provided on the chassis and is used to adjust the position of the adjustment frame;

[0009] A pre-tensioning mechanism is provided on the adjusting frame and is used to adjust the pre-tensioning force of the spring on the sliding frame.

[0010] Preferably, both the first motor and the second motor are servo motors.

[0011] Preferably, the adjustment mechanism includes a drive motor and a screw, the screw is rotatably mounted on the housing, the drive motor is connected to the screw and drives the screw to rotate, and the adjustment frame is provided with a screw hole that mates with the screw.

[0012] Preferably, the sliding frame is provided with a plurality of sliding rods, one end of each sliding rod is provided with a connecting plate, the abutment plate is provided with a plurality of mounting holes, the sliding rods slide in cooperation with the mounting holes, the connecting plate is provided with a plurality of mounting posts, and each mounting post is fitted with a spring, the springs push against the connecting plate to drive the connecting plate to abut against the abutment plate.

[0013] Preferably, the sliding frame is provided with a limiting plate for the connecting plate to abut against, the limiting plate is used to limit the moving distance of the sliding frame, and the limiting plate is provided with a plurality of through holes through which the spring passes.

[0014] Preferably, the pre-tightening mechanism includes a hydraulic cylinder and a pressure plate. The pressure plate is movably mounted on the adjusting frame. The hydraulic cylinder is disposed on the adjusting frame and is connected to the adjusting frame to drive the adjusting frame to move. The adjusting frame is provided with a plurality of limiting posts, and each limiting post is fitted with a spring.

[0015] Preferably, a sieve plate is inclinedly arranged on the casing, and the sieve plate is located below the rotating roller.

[0016] Preferably, the lower end of the casing is provided with a collection box and a recycling box. The collection box is located below the screen plate and is used to collect the material passing through the screen plate. The recycling box is connected to one end of the screen plate and is used to collect the material sliding down the surface of the screen plate.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] During operation, materials are fed into the hopper. The first and second motors drive the rotating roller and grinding roller to rotate, respectively, to grind the materials. The position of the adjusting frame can be adjusted by the adjusting mechanism to adjust the distance between the grinding roller and the rotating roller. Several springs drive the sliding frame to elastically abut against the abutment plate, allowing the grinding roller to adaptively adjust the distance between the grinding roller and the rotating roller according to the size of the material. This reduces the impact of the material on the grinding roller and the rotating roller, thus improving their service life. Furthermore, the preload of the springs can be adjusted by the preload mechanism to adjust the preload during the adaptive movement of the grinding roller as needed. This not only improves the service life of the grinding roller and the rotating roller but also enhances their grinding effect. It is suitable for grinding stone powder of various sizes and has good versatility. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of one embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the sliding frame and the adjusting frame in a certain embodiment of the present invention;

[0023] Figure 4 for Figure 3 A sectional view.

[0024] In the diagram, 1-chassis; 11-feed hopper; 12-rotating roller; 13-first motor; 2-adjusting frame; 21-abutment plate; 211-mounting hole; 22-limiting plate; 221-perforation; 3-sliding frame; 31-spring; 32-slide rod; 33-connecting plate; 34-mounting column; 4-grinding roller; 41-second motor; 5-adjusting mechanism; 51-drive motor; 52-screw; 6-pre-tightening mechanism; 61-hydraulic cylinder; 62-pressure plate; 621-limiting column; 7-screen plate; 8-collection box; 9-recycling box. Detailed Implementation

[0025] This section will describe in detail the specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0026] Example 1:

[0027] Reference Figures 1 to 4 This utility model provides a grinding device for mineral powder, comprising:

[0028] The upper part of the casing 1 is equipped with a feed hopper 11;

[0029] A rotating roller 12 is rotatably mounted on a housing 1, and a first motor 13 is provided on the housing 1 to drive the rotating roller 12 to rotate.

[0030] Adjusting frame 2 is movably mounted on housing 1. A sliding frame 3 is movably mounted on the adjusting frame 2. A grinding roller 4 is rotatably mounted on the sliding frame 3. A second motor 41 for driving the grinding roller 4 to rotate is mounted on the sliding frame 3. Several springs 31 are mounted on the sliding frame 3. An abutment plate 21 for the sliding frame 3 to abut against is mounted on the adjusting frame 2. Several springs 31 push the sliding frame 3 to drive the sliding frame 3 to approach the rotating roller 12 and abut against the abutment plate 21.

[0031] Adjustment mechanism 5 is mounted on the chassis 1 and is used to adjust the position of adjustment frame 2;

[0032] The pre-tensioning mechanism 6 is mounted on the adjusting frame 2 and is used to adjust the pre-tensioning force of the spring 31 on the sliding frame 3.

[0033] During operation, materials are fed into the feed hopper 11. The first motor 13 and the second motor 41 drive the rotating roller 12 and the grinding roller 4 to rotate, respectively, to grind the materials. The position of the adjusting frame 2 can be adjusted by the adjusting mechanism 5 to adjust the distance between the grinding roller 4 and the rotating roller 12. Several springs 31 drive the sliding frame 3 to elastically abut against the abutment plate 21, so that the grinding roller 4 can adaptively adjust the distance between the grinding roller 4 and the rotating roller 12 according to the size of the material, reducing the impact of the material on the grinding roller 4 and the rotating roller 12, which helps to improve the service life of the grinding roller 4 and the rotating roller 12. The pre-tightening mechanism 6 can adjust the pre-tightening force of the springs 31 to adjust the pre-tightening force during the adaptive movement of the grinding roller 4 as needed, which not only improves the service life of the grinding roller 4 and the rotating roller 12, but also improves their grinding effect. It is suitable for grinding stone powder of various sizes and has good versatility.

[0034] Specifically, both the first motor 13 and the second motor 41 are servo motors. A control panel is provided on the chassis 1 to control the working status of the two servo motors. The speed of the two servo motors can be controlled through the control panel to perform grinding work on the materials as needed.

[0035] Specifically, the adjustment mechanism 5 includes a drive motor 51 and a screw 52. The screw 52 is rotatably mounted on the housing 1. The drive motor 51 is connected to the screw 52 and drives the screw 52 to rotate. The adjustment frame 2 is provided with a screw hole that mates with the screw 52.

[0036] The drive motor 51 drives the screw 52 to rotate, which in turn moves the adjusting frame 2 relative to the housing 1. Since the spring 31 presses the sliding frame 3 against the abutment plate 21, the sliding frame 3 can move with the adjusting frame 2, thereby adjusting the distance between the grinding roller 4 and the rotating roller 12. Furthermore, the grinding roller 4 can move away from the rotating roller 12 and squeeze the spring 31 under the impact of large-sized materials, adaptively adjusting the distance between the grinding roller 4 and the rotating roller 12 within a certain range, reducing material impact and improving the service life of the rotating roller 12 and the grinding roller 4.

[0037] Example 2:

[0038] Reference Figures 1 to 4 In conjunction with the technical solution of Embodiment 1, in this embodiment, the sliding frame 3 is provided with a plurality of sliding rods 32, one end of which is provided with a connecting plate 33, and the abutment plate 21 is provided with a plurality of mounting holes 211. The sliding rods 32 slide in cooperation with the mounting holes 211. The connecting plate 33 is provided with a plurality of mounting posts 34, and each mounting post 34 is fitted with a spring 31. The spring 31 pushes against the connecting plate 33 to drive the connecting plate 33 to abut against the abutment plate 21.

[0039] Specifically, the sliding frame 3 is provided with a limiting plate 22 for the connecting plate 33 to abut against. The limiting plate 22 is used to limit the moving distance of the sliding frame 3. The limiting plate 22 is provided with several through holes 221, through which the spring 31 passes.

[0040] The movement distance of the sliding frame 3 is limited by the cooperation of the limiting plate 22 and the abutment plate 21, which can effectively prevent the sliding frame 3 from moving too far away from the rotating roller 12 and thus reducing the grinding effect.

[0041] Specifically, the pre-tightening mechanism 6 includes a hydraulic cylinder 61 and a pressure plate 62. The pressure plate 62 is movably mounted on the adjusting frame 2. The hydraulic cylinder 61 is mounted on the adjusting frame 2. The hydraulic cylinder 61 is connected to the adjusting frame 2 and drives the adjusting frame 2 to move. The adjusting frame 2 is provided with several limit posts 621, and each limit post 621 is fitted with a spring 31.

[0042] The pressure plate 62 is moved by the hydraulic cylinder 61, which squeezes the spring 31, thereby adjusting the preload of the spring 31. This allows the operator to adjust the preload of the grinding roller 4 during its adaptive movement as needed, improving the service life of the grinding roller 4 and the rotating roller 12 while also enhancing their grinding effect. It is suitable for grinding stone powder of various sizes and has good versatility.

[0043] Example 3:

[0044] Reference Figures 1 to 4 In combination with the technical solutions of Embodiment 1 and Embodiment 2, in this embodiment, a screen plate 7 is inclinedly arranged on the casing 1, and the screen plate 7 is located below the rotating roller 12.

[0045] Specifically, a collection box 8 and a recycling box 9 are provided at the lower end of the casing 1. The collection box 8 is located below the screen plate 7 and is used to collect the material passing through the screen plate 7. The recycling box 9 is connected to one end of the screen plate 7 and is used to collect the material that slides down the surface of the screen plate 7.

[0046] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.

Claims

1. A mine stone powder grinding device, characterized by, include: The machine casing has a feed hopper at its upper end; A rotating roller is rotatably mounted on the housing, and the housing is equipped with a first motor for driving the rotating roller to rotate; An adjusting frame is movably mounted on the machine housing. A sliding frame is movably mounted on the adjusting frame. A grinding roller is rotatably mounted on the sliding frame. A second motor for driving the grinding roller to rotate is mounted on the sliding frame. Several springs are mounted on the sliding frame. An abutment plate is mounted on the adjusting frame for the sliding frame to abut against. The several springs push against the sliding frame to drive the sliding frame closer to the rotating roller and abut against the abutment plate. An adjustment mechanism is provided on the chassis and is used to adjust the position of the adjustment frame; A pre-tensioning mechanism is provided on the adjusting frame and is used to adjust the pre-tensioning force of the spring on the sliding frame.

2. The mining stone powder grinding device according to claim 1, characterized in that: Both the first motor and the second motor are servo motors.

3. The ore powder grinding device according to claim 1, characterized in that: The adjustment mechanism includes a drive motor and a screw. The screw is rotatably mounted on the housing. The drive motor is connected to the screw and drives the screw to rotate. The adjustment frame is provided with a screw hole that mates with the screw.

4. The ore powder grinding device according to claim 1, characterized in that: The sliding frame is provided with a plurality of sliding rods, one end of which is provided with a connecting plate. The abutment plate is provided with a plurality of mounting holes, and the sliding rods slide in cooperation with the mounting holes. The connecting plate is provided with a plurality of mounting posts, and each mounting post is fitted with a spring. The spring pushes against the connecting plate to drive the connecting plate to abut against the abutment plate.

5. A grinding device for mineral powder according to claim 4, characterized in that: The sliding frame is provided with a limiting plate for the connecting plate to abut against. The limiting plate is used to limit the moving distance of the sliding frame. The limiting plate is provided with a plurality of through holes through which the spring passes.

6. The grinding device for mineral powder according to claim 1, characterized in that: The pre-tightening mechanism includes a hydraulic cylinder and a pressure plate. The pressure plate is movably mounted on the adjusting frame. The hydraulic cylinder is located on the adjusting frame and is connected to the adjusting frame to drive the adjusting frame to move. The adjusting frame is provided with a plurality of limiting posts, and each limiting post is fitted with a spring.

7. The grinding device for mineral powder according to claim 1, characterized in that: A sieve plate is inclinedly arranged on the machine casing, and the sieve plate is located below the rotating roller.

8. A grinding device for mineral powder according to claim 7, characterized in that: The lower end of the casing is provided with a collection box and a recycling box. The collection box is located below the screen plate and is used to collect the material passing through the screen plate. The recycling box is connected to one end of the screen plate and is used to collect the material that slides down the surface of the screen plate.

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