Crusher with controllable ore granularity

Abstract

The invention relates to the field of crushers, in particular to an ore granularity controllable crusher which comprises a support, a crushing box with a feeding hopper is mounted on the support, a pair of crushing shafts are rotatably connected into the crushing box, the crushing box comprises an outer frame, a pair of auxiliary plates are fixedly connected to the inner wall of the outer frame, and a plurality of movable rib plates are slidably connected to the auxiliary plates. Sliding rails matched with the movable rib plates are arranged at the upper end and the lower end of the auxiliary plate in a staggered mode, and small air cylinders are connected between the movable rib plates and the inner walls of the sliding rails. The crushing shaft comprises a main shaft, a plurality of air cavities which are uniformly distributed are formed in the main shaft, piston plates are slidably connected into the air cavities, a multi-directional output pipe is inserted into the middle of each piston plate, and a three-way electromagnetic valve used for being communicated with the corresponding piston plate is installed in the middle of each multi-directional output pipe. And the distance between the crushing discs can be conveniently and rapidly detected after adjustment, and the crushing discs with abnormal positions after adjustment can be found in time.

Description

Technical Field

[0001] The present invention relates to an ore crusher, in particular to an ore particle size controllable crusher applied in the crusher field. Background Art

[0002] Existing ore crushers primarily include jaw crushers, cone crushers, impact crushers, hammer crushers, and roller crushers. Jaw crushers are suitable for coarse crushing, featuring a simple structure and easy maintenance. Cone crushers are suitable for medium and fine crushing, capable of handling high-hardness ores. Impact crushers are ideal for sand making, offering a high crushing ratio and fine-grained finished products. Hammer crushers are suitable for medium and fine crushing, ideal for medium-hard ores. Roller crushers are suitable for medium and fine crushing, featuring low energy consumption and low noise. These crushers utilize different crushing principles and structural designs to meet diverse ore crushing requirements.

[0003] Chinese patent CN116197002B discloses a double-roll ore crusher. In this invention, when one filter screen moves to the drop zone to filter the crushed ore, the other filter screen that collects the uncrushed material will move to the uncrushed material recovery zone. The two filter screens filter the crushed ore alternately and reciprocally to prevent the uncrushed material and the crushed ore from mixing together.

[0004] Chinese patent CN106345563B discloses an ore crusher for use in mines. This invention can perform two-way limited extrusion crushing on ore during ore crushing, thereby greatly improving the crushing effect of the ore and reducing the difficulty of subsequent ore processing. It is easy to use and can greatly reduce the noise output of the motor, main crushing roller and auxiliary crushing roller during operation, thereby preventing noise pollution in the ore crushing area during ore crushing operations to a great extent.

[0005] The existing crushing disc spacing of the crusher is fixed or relies on a mechanical locking device for adjustment, which has the problems of slow adjustment speed and low precision, and it is inconvenient to detect the consistency of the crushing disc spacing after adjustment. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the spacing between the crushing discs of the existing crusher is fixed or relies on mechanical locking devices for adjustment, which has the problems of slow adjustment speed and low precision, and it is inconvenient to detect the consistency of the spacing between the crushing discs after adjustment.

[0007] To solve the above problems, the present invention provides a controllable ore particle size crusher, comprising a bracket, a crushing box with a feed hopper mounted on the bracket, a pair of crushing shafts rotatably connected to the crushing box, the crushing box comprising an outer frame, a pair of auxiliary plates fixedly connected to the inner wall of the outer frame, a plurality of movable ribs slidably connected to the auxiliary plates, slide rails respectively matching the respective movable ribs being staggeredly provided on the upper and lower ends of the auxiliary plates, and a small cylinder being connected between the movable ribs and the inner walls of the slide rails; The crushing shaft includes a main shaft, a plurality of evenly distributed air cavities are opened in the main shaft, a piston plate is slidably connected in the air cavity, a plurality of jacks are opened on the piston plate and inserted with positioning pins, a slot hole matching the positioning pins is opened on the air cavity, a multi-directional output tube is inserted in the middle of the piston plate, a three-way solenoid valve for connecting with the piston plate is installed in the middle of the multi-directional output tube, and both ends of the multi-directional output tube are installed with a pumping and releasing air ring for pumping and releasing air to both sides of the piston plate; a flexible conduit for pumping and releasing air from the plurality of jacks is connected between the three-way solenoid valve and the piston plate; an air guide tube is connected between the plurality of multi-directional output tubes; The crushing shaft is sleeved with multiple evenly distributed crushing discs, and the inner side of the crushing discs is provided with positioning holes matching the positioning pins; the bracket is equipped with an air pump for driving the crushing shaft to rotate and for pumping and delivering air to multiple multi-directional output pipes.

[0008] In the above-mentioned ore particle size controllable crusher, the particle size of the crushed ore particles can be adjusted.

[0009] As a further supplement to this application, a receiving groove is opened in the middle of the top of the auxiliary plate, and a detection unit is fixedly connected in the receiving groove. A pair of laser sensors are installed on the detection unit. The detection unit is used to detect whether the distance between it and the adjacent crushing disk is consistent and the distance between adjacent crushing disks.

[0010] As a further supplement to this application, a permanent magnet ring is installed in the socket for resetting the positioning pin. When the positioning pin is in the initial position, the positioning pin is completely received in the slot and the air cavity. When the positioning pin is fully extended, it is inserted into the positioning hole on the inner side of the crushing disk.

[0011] As a further supplement to the present application, sealing rings are fixedly connected to the openings at both ends of the inner side of the crushing disk, and a pressure sensor is installed on the top of the positioning pin.

[0012] As a further supplement to the present application, movable baffles are connected to both sides of the bottom end of the feed hopper, and an electric push rod is connected between the outer wall of the feed hopper and the movable baffle. The moving distance of the movable baffle matches the displacement distance when the crushing disc is adjusted.

[0013] As a further supplement to the present application, two adjacent slide rails on the auxiliary plate are respectively installed at the upper end and the lower end thereof.

[0014] As a further supplement to the present application, an auxiliary crushing system is also included, the auxiliary crushing system includes a processor, and the processor is connected to a control module, a data processing module, a data acquisition module and an early warning module; The control module is used to control the operation of related equipment; The data acquisition module is used to collect monitoring data, including the pressure value detected at the positioning pin and the distance between adjacent crushing discs; The data processing module is used to process monitoring data and determine whether there is any abnormality during the crushing disk adjustment process; The early warning module will sound an alarm when an abnormality occurs during the crushing disc adjustment process.

[0015] As a further supplement to the present application, the early warning module will shut down and sound an alarm when it detects that the monitoring data of the crushing disk after adjustment is unqualified, and at the same time control the auxiliary plate at the corresponding position to move to fit with it, so as to mark the abnormal crushing disk so that the staff can find it in time during maintenance.

[0016] In summary, this solution facilitates the adjustment of the crushing disk spacing, facilitates the adjustment of the ore particle size, and facilitates the rapid detection of the crushing disk spacing after adjustment. The crushing disk with abnormal position after adjustment can be discovered in time, and it is easy to achieve precise control of the output ore particle size. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the crusher according to the first and second embodiments of the present application; Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle; Figure 3 This is a cross-sectional view of the crushing shaft of the first and second embodiments of the present application; Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle; Figure 5 This is a cross-sectional view of the movable ribs of the first and second embodiments of the present application; Figure 6 A top view of the crusher according to the first and second embodiments of the present application; Figure 7 for Figure 6 Schematic diagram of the structure at point C in the middle.

[0018] Description of the numbers in the figure: 1. Bracket; 2. Crushing box; 21. Outer frame; 22. Auxiliary plate; 23. Movable ribs; 231. Detection unit; 3. Crushing shaft; 31. Main shaft; 32. Piston plate; 33. Positioning pin; 34. Multi-directional output pipe; 341. Pumping and exhausting air ring; 342. Three-way solenoid valve; 4. Crushing disk. DETAILED DESCRIPTION

[0019] The following describes two implementation methods of the present application in detail with reference to the accompanying drawings.

[0020] The first implementation method: Figure 1-Figure 7 FIG. 1 shows a controllable ore particle size crusher, comprising a support 1 , a crushing box 2 with a feed hopper mounted on the support 1 , and a pair of crushing shafts 3 rotatably connected to the crushing box 2 ; The crushing box 2 includes an outer frame 21, a pair of auxiliary plates 22 are fixedly connected to the inner wall of the outer frame 21, and a plurality of movable ribs 23 are slidably connected to the auxiliary plates 22. The upper and lower ends of the auxiliary plates 22 are staggered with slide rails that match each movable rib 23 respectively. A small cylinder is connected between the movable rib 23 and the inner wall of the slide rail. The crushing shaft 3 includes a main shaft 31, which has multiple evenly distributed air cavities, and a piston plate 32 is slidably connected to the air cavity. The piston plate 32 has multiple sockets and is plugged with positioning pins 33. The air cavity is provided with slots matching the positioning pins 33. A multi-directional output tube 34 is plugged into the middle of the piston plate 32, and a three-way solenoid valve 342 for connecting to the piston plate 32 is installed in the middle of the multi-directional output tube 34. Both ends of the multi-directional output tube 34 are equipped with a pumping and releasing ring 341 for pumping and releasing air to both sides of the piston plate 32; a flexible conduit for pumping and releasing air from the multiple sockets is connected between the three-way solenoid valve 342 and the piston plate 32; and an air guide tube is connected between the multiple multi-directional output tubes 34. The extraction and discharge air ring 341 includes an electrically controlled three-way valve connected to the air guide pipe. The side output end of the electrically controlled three-way valve is connected to the air guide ring. The air guide ring is provided with multiple air holes facing the air cavity. A plurality of evenly distributed crushing discs 4 are sleeved on the crushing shaft 3, and positioning holes matching the positioning pins 33 are opened on the inner side of the crushing disc 4; sealing rings are fixedly connected to the openings at both ends of the inner side of the crushing disc 4, and a pressure sensor is installed on the top of the positioning pin 33.

[0021] The bracket 1 is provided with a motor 6 for driving the crushing shaft 3 to rotate and an air pump 7 for pumping and delivering air to the multiple multi-directional output pipes 34 .

[0022] A receiving groove is provided in the middle of the top of the auxiliary plate 22, and a detection unit 231 is fixedly connected to the receiving groove. A pair of laser sensors are installed on the detection unit 231. The detection unit 231 is used to detect whether the distance between it and the adjacent crushing disk 4 is consistent and the distance between the adjacent crushing disks 4.

[0023] A permanent magnet ring is installed in the socket for resetting the positioning pin 33. When the positioning pin 33 is in the initial position, the positioning pin 33 is completely received in the slot and the air cavity. When the positioning pin 33 is fully extended, it is inserted into the positioning hole inside the crushing disk 4.

[0024] Both sides of the bottom of the feed hopper are connected with movable baffles, and an electric push rod is connected between the outer wall of the feed hopper and the movable baffle. The moving distance of the movable baffle matches the displacement distance of the crushing disk 4 when it is adjusted.

[0025] The two adjacent slide rails on the auxiliary plate 22 are respectively mounted on the upper and lower ends thereof; In this solution, when adjusting the spacing between the crushing discs 4 on the crushing shaft 3, the air pump 7 is used to extract and supply air to each multi-directional output pipe 34, so that the air pressure in the air chambers on both sides of the piston plate 32 changes, thereby adjusting the position of the piston plate 32. By adjusting the position of the piston plate 32, the positioning pin 33 drives the crushing disc 4 to move along the length direction of the slot hole, thereby achieving the adjustment of the position of the crushing disc 4; The same pumping and releasing operation is performed on multiple air cavities to comprehensively adjust the positions of multiple crushing disks 4 so that the spacing between them is uniformly reduced or increased; During the position adjustment process of multiple crushing discs 4, the laser sensor of the detection unit 231 on the movable rib 23 detects the distance between adjacent crushing discs 4. After the detection, if the distance is qualified, the position of the movable rib 23 is adjusted by the small cylinder so that the movable rib 23 is moved to the middle position between adjacent movable ribs 23, that is, the detection unit 231 detects that the distance between the movable rib 23 and the two adjacent crushing discs 4 is the same; This embodiment enables automatic adjustment and detection of the spacing between the crushing discs in a size-controllable crusher, improving the precision and efficiency of ore crushing. By pumping air through the multi-directional output pipe, the piston plate slides within the air chamber, which in turn drives the position of the crushing discs on the crushing shaft. This flexible and precise adjustment method allows for rapid changes in ore crushing size based on actual needs.

[0026] The detection unit and its laser sensor on the movable ribs also play a key role in monitoring the spacing between adjacent crushing discs. They monitor the spacing in real time, ensuring consistency and, consequently, uniform crushed ore particle size. When the spacing is correct, a small cylinder automatically adjusts the position of the movable ribs, ensuring they are stably supported between the adjacent crushing discs, further enhancing the stability and reliability of the equipment.

[0027] In summary, this embodiment facilitates the adjustment of the spacing between the crushing disks 4, facilitates the adjustment of the ore particle size, and facilitates the rapid detection of the spacing between the crushing disks 4 after adjustment. The crushing disks 4 with abnormal positions after adjustment can be discovered in time, making it easy to achieve precise control of the output ore particle size.

[0028] Second implementation method: The auxiliary crushing system includes a processor, and the processor is connected to a control module, a data processing module, a data acquisition module and an early warning module; The control module is used to control the operation of related equipment; The data acquisition module is used to collect monitoring data, including the pressure value detected at the positioning pin 33 and the distance between adjacent crushing discs 4; The data processing module is used to process the monitoring data and determine whether there is any abnormality during the adjustment of the crushing disk 4; The early warning module will give an alarm when an abnormality occurs during the adjustment of the crushing disk 4.

[0029] When the early warning module detects that the crushing disk 4 has unqualified monitoring data after adjustment, it stops the machine and issues an alarm. At the same time, it controls the auxiliary plate 22 at the corresponding position to move to fit with it, so as to mark the abnormal crushing disk 4 so that the staff can find it in time during maintenance. For example, if the monitoring data is unqualified, the spacing between the crushing disks 4 or the pressure value at the positioning pin 33 is not within the set value range, This embodiment realizes the intelligent management of the ore particle size controllable crusher by introducing the auxiliary crushing system. The equipment can not only automatically adjust the distance between the crushing discs 4, but also monitor and adjust the key parameters in real time to ensure the accuracy and efficiency of ore crushing.

[0030] When the early warning module detects an abnormal crushing disk 4, it will automatically control the auxiliary plate at the corresponding position to move to fit with it, thereby marking the abnormal position; this facilitates the subsequent maintenance work of the staff, enabling them to quickly locate and solve the problem, ensuring the continued stable operation of the equipment.

[0031] In summary, the ore particle size controllable crusher of this embodiment realizes intelligent management and comprehensive monitoring of the crushing process by introducing the auxiliary crushing system.

[0032] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A crusher with controllable ore particle size, comprising a bracket (1), a crushing box (2) with a feed hopper mounted on the bracket (1), a pair of crushing shafts (3) rotatably connected in the crushing box (2), the crushing box (2) comprising an outer frame (21), a pair of auxiliary plates (22) fixedly connected to the inner wall of the outer frame (21), a plurality of movable ribs (23) slidably connected to the auxiliary plates (22), and slide rails respectively matching the respective movable ribs (23) staggeredly arranged at the upper and lower ends of the auxiliary plates (22), characterized in that: A small cylinder is connected between the movable rib (23) and the inner wall of the slide rail; The crushing shaft (3) includes a main shaft (31), a plurality of evenly distributed air cavities are provided in the main shaft (31), a piston plate (32) is slidably connected in the air cavity, a plurality of jacks are provided on the piston plate (32) and a positioning pin (33) is inserted therein, a slot hole matching the positioning pin (33) is provided on the air cavity, a three-way solenoid valve (342) for connecting with the piston plate (32) is installed in the middle of the piston plate (32), and both ends of the multi-directional output pipe (34) are provided with an exhaust ring (341) for exhausting air to both sides of the piston plate (32); a flexible conduit for exhausting air from the plurality of jacks is connected between the three-way solenoid valve (342) and the piston plate (32); and an air guide pipe is connected between the plurality of multi-directional output pipes (34); The crushing shaft (3) is sleeved with a plurality of evenly distributed crushing discs (4), and a positioning hole matching the positioning pin (33) is provided on the inner side of the crushing disc (4); the bracket (1) is equipped with a motor (5) for driving the crushing shaft (3) to rotate and an air pump (6) for pumping and delivering air to the plurality of multi-directional output pipes (34).

2. The ore particle size controllable crusher according to claim 1, characterized in that: A receiving groove is provided in the middle of the top of the auxiliary plate (22), and a detection unit (231) is fixedly connected to the receiving groove. A pair of laser sensors are installed on the detection unit (231). The detection unit (231) is used to detect whether the distance between the auxiliary plate and the adjacent crushing disk (4) is consistent and the distance between the adjacent crushing disks (4).

3. The ore particle size controllable crusher according to claim 1, characterized in that: A permanent magnet ring for resetting the positioning pin (33) is installed in the socket. When the positioning pin (33) is in the initial position, the positioning pin (33) is completely received in the slot and the air cavity. When the positioning pin (33) is fully extended, it is inserted into the positioning hole inside the crushing disk (4).

4. The ore particle size controllable crusher according to claim 1, characterized in that: Sealing rings are fixedly connected to the openings at both ends of the inner side of the crushing disk (4), and a pressure sensor is installed at the top end of the positioning pin (33).

5. The ore particle size controllable crusher according to claim 1, characterized in that: Both sides of the bottom end of the feed hopper are connected with movable baffles, and an electric push rod is connected between the outer wall of the feed hopper and the movable baffle. The moving distance of the movable baffle matches the displacement distance of the crushing disk (4) when it is adjusted.

6. The ore particle size controllable crusher according to claim 1, characterized in that: The two adjacent slide rails on the auxiliary plate (22) are respectively mounted on the upper end and the lower end thereof.

7. The ore particle size controllable crusher according to any one of claims 1 to 6, characterized in that: It also includes an auxiliary crushing system, which includes a processor, and the processor is connected to a control module, a data processing module, a data acquisition module and an early warning module; The control module is used to control the operation of related equipment; The data acquisition module is used to collect monitoring data, the monitoring data including the pressure value detected at the positioning pin (33) and the distance between adjacent crushing discs (4); The data processing module is used to process the monitoring data and determine whether an abnormality occurs during the adjustment process of the crushing disk (4); The early warning module issues an alarm when an abnormality occurs during the adjustment of the crushing disc (4).

8. The ore particle size controllable crusher according to claim 7, characterized in that: When the early warning module detects a crushing disk (4) with unqualified monitoring data after adjustment, it stops the machine and issues an alarm, and simultaneously controls the auxiliary plate (22) at the corresponding position to move to fit the crushing disk, thereby marking the abnormal crushing disk (4).

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