Crushing device and coal blending machine comprising same

Abstract

The utility model discloses a crushing device and a coal blending machine comprising the same, and relates to the technical field of coal blending machines, and the crushing device comprises a central shaft driven by a motor; the number of the separation discs is multiple, the separation discs are arranged in parallel and fixedly arranged on the center shaft in a sleeving mode, the centers of the separation discs are located on the axis of the center shaft, insertion holes are formed in the same positions of the separation discs, the number of the insertion holes in one separation disc is multiple, and the multiple opposite insertion holes in different separation discs form a group; a plurality of mounting rods are provided, and one mounting rod is inserted into the same group of insertion holes; the fixing device is used for fixing the mounting rod and the partition plate; and the breaking hammers are rotationally connected to the mounting rod and located between the separation discs, and when the end discs rotate, hammer heads of the breaking hammers can stretch out of the separation disc areas. The coal blending machine has the effects of improving the uniformity of coal briquettes proportioned by the coal blending machine and improving the product quality after coal blending.

Description

Technical Field

[0001] This application relates to the technical field of coal blending machines, and in particular to a crushing device and a coal blending machine containing the device. Background Technology

[0002] A coal blending machine is a device that precisely mixes different types and qualities of coal in a certain proportion.

[0003] When a coal blender is in use, coal blocks from different hoppers fall directly onto the conveyor belt below for overall transport. However, because the coal blocks falling from the hoppers are of varying sizes, even with precise coal blending, uneven distribution of coal blocks can occur during the mixing process, leading to a decrease in product quality. Utility Model Content

[0004] The purpose of this utility model application is to improve the problem of reduced product quality after coal blending due to the large size of some coal blocks. This application provides a crushing device and a coal blending machine containing the device.

[0005] The crushing device provided in this application adopts the following technical solution:

[0006] A crushing device, comprising

[0007] The central shaft is driven by a motor;

[0008] Multiple partition discs are arranged in parallel to each other and fixedly fitted on the central shaft. The center of the partition disc is on the axis of the central shaft. Insertion holes are opened at the same position on the partition disc. There are multiple insertion holes on one partition disc, and multiple opposite insertion holes on different partition discs form a group.

[0009] There are multiple mounting rods, and one mounting rod is inserted into the same set of insertion holes;

[0010] A fixing device is used to secure the mounting rod to the partition plate;

[0011] The hydraulic breaker is rotatably connected to the mounting rod and located between the dividing discs. When the end discs rotate, the hammer head of the hydraulic breaker can extend out of the dividing disc area.

[0012] Optionally, the positions of the hydraulic breakers on adjacent mounting rods can be staggered.

[0013] Optionally, the mounting rod is fitted with multiple limiting cylinders, with two limiting cylinders forming a group, located between two adjacent partition plates, and the breaker hammer located between two limiting cylinders in the group.

[0014] Optionally, the partition plate has a switching hole near the insertion hole. The switching holes on multiple partition plates are positioned opposite each other and are used to insert and fix the mounting rod. The distance of the switching hole from the central axis is greater than the distance of the insertion hole from the central axis.

[0015] Optionally, the fixing device includes a fixing plate and a fixing bolt. The fixing plate is fixed to one end of the mounting rod. The partition plate closest to the fixing plate has a threaded hole. The fixing plate has a fixing strip hole at the position opposite to the threaded hole. The fixing bolt passes through the fixing strip hole and is threaded into the threaded hole, thus pressing the fixing plate against the partition plate.

[0016] Optionally, a fastening ring plate is fixed on the partition plate furthest from the fixed plate, and the mounting rod is interference-fitted with the circumferential inner wall of the fastening ring plate.

[0017] Optionally, the fixing device includes a fixing plate and a fixing nut. The fixing plate is fixed to one end of the mounting rod, and the fixing nut is threaded to the other end of the mounting rod. When the fixing nut is pressed against one of the partition plates, the fixing plate is pressed against the partition plate at the far end.

[0018] The coal blending machine provided in this application adopts the following technical solution:

[0019] A coal blending machine includes the aforementioned crushing device, which is installed at the feed inlet of the coal blending machine.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The central shaft, as the main drive shaft, can drive its multiple partition plates to rotate together under the drive of the motor, thereby causing the breaker hammer to swing under the action of centrifugal force, thus crushing coal and other minerals. The partition plates can effectively divide the breaker hammer into sections and protect the mounting rod. The staggered distribution of the breaker hammers can also effectively reduce the probability of collision between the breaker hammers and effectively improve the uniformity of crushing coal and other minerals.

[0022] 2. The hydraulic breaker is a consumable. After the hydraulic breaker has been used and worn for a long time, the mounting rod and the hydraulic breaker are removed together. The mounting rod is inserted into the switching hole, and the hydraulic breaker is installed at the same time. This will make the worn hydraulic breaker further away from the central axis and improve the service life of the hydraulic breaker.

[0023] 3. After the fixing plate is pressed against the partition plate at one end, the fixing bolt passes through the fixing strip hole and is threaded into the threaded hole, thereby fixing the fixing plate to the partition plate and fixing the position of the mounting rod. Fixing the mounting rod in this way not only facilitates the installation and disassembly of the mounting rod, but also improves the stability of the installation of the mounting rod. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view showing the installation position of the crushing device in Embodiment 1 of this application;

[0025] Figure 2 This application's Embodiment 1 only shows a structural schematic diagram of the crushing device;

[0026] Figure 3 This is a partial exploded view of the fixing device shown in Embodiment 1 of this application;

[0027] Figure 4 This is a partial schematic diagram of the other end of the mounting rod shown in Embodiment 1 of this application;

[0028] Figure 5 This is a partial schematic diagram of Embodiment 2 of this application showing the fastening ring plate;

[0029] Figure 6 This is a schematic diagram of the structure of the fixing plate shown in Embodiment 3 of this application;

[0030] Figure 7 This is a schematic diagram of the structure of the fixing nut shown in Embodiment 3 of this application.

[0031] In the diagram, 1. Central shaft; 2. Divider plate; 21. Insertion hole; 22. Switching hole; 23. Threaded hole; 24. Fastening ring plate; 3. Mounting rod; 31. Limiting cylinder; 4. Breaker hammer; 5. Fixing device; 51. Fixing clamping plate; 511. Fixing strip hole; 52. Fixing bolt; 53. Fixing plate; 54. Fixing nut. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0033] This application discloses a crushing device and a coal blending machine containing the device.

[0034] Example 1

[0035] refer to Figure 1 and Figure 2 The coal blender is equipped with a crushing device at the feed inlet. This device crushes the selected coal blocks, thereby improving the quality of the blended coal. The crushing device includes a central shaft 1, a dividing plate 2, a mounting rod 3, a breaker hammer 4, and a fixing device 5.

[0036] refer to Figure 2 and Figure 3The rotation of the central shaft 1 after installation is driven by a motor. Multiple partition discs 2 are fixedly sleeved on the central shaft 1, with equal spacing between them. The center of each partition disc 2 lies on the axis of the central shaft 1. Insertion holes 21 are provided at the same positions on each partition disc 2, with multiple insertion holes 21 on one partition disc 2, all equidistant from the central shaft 1. The multiple insertion holes 21 on one partition disc 2 are equidistantly distributed in a circle around the center of the partition disc 2. Multiple insertion holes 21 on different partition discs 2 are grouped together. Multiple mounting rods 3 are provided, each capable of being inserted into multiple insertion holes 21 within the same group. The mounting rod 3 abuts against the circumferential inner wall of the insertion hole 21. A fixing device 5 is provided on the mounting rod 3 for detachably mounting the mounting rod 3 onto the partition disc 2.

[0037] Multiple hydraulic breakers 4 are rotatably connected to mounting rods 3 and located between partition plates 2. One hydraulic breaker 4 is installed on every two partition plates on the same mounting rod 3. On adjacent mounting rods 3, the installation positions of the hydraulic breakers 4 are staggered. Multiple sets of limiting cylinders 31 are slidably sleeved on the mounting rods 3, with two limiting cylinders 31 forming a group. The two limiting cylinders 31 within a group are located on both sides of the hydraulic breaker 4 and between two adjacent partition plates of the hydraulic breaker 4.

[0038] The partition plate effectively protects the mounting rod 3 and the center rod, reducing the probability of large pieces of ore hitting them and allowing the mounting rod 3 to be easily disassembled and removed. The detachable design of the mounting rod 3 effectively improves the efficiency of disassembling and replacing the breaker hammer 4. The limiting cylinder 31 effectively improves the rotational stability of the breaker hammer 4 and extends its service life. The distribution of the breaker hammers 4 effectively improves the uniformity of their three-dimensional distribution and reduces interference between breaker hammers 4 on adjacent mounting rods 3, improving the breaker hammer 4's crushing effect on the ore after the center rod is driven to rotate by the motor.

[0039] refer to Figure 2 and Figure 3 The separator plate 2 has a switching hole 22 near the insertion hole 21. The size of the switching hole 22 is the same as that of the insertion hole 21, and the distance of the switching hole 22 from the central axis 1 is greater than the distance of the insertion hole 21 from the central axis 1. The switching holes 22 on the multiple separator plates are positioned opposite each other. By setting the switching hole 22, after the breaker 4 has been worn for a long time, the mounting rod 3 can be inserted from the insertion hole 21 into the switching hole 22 to install the breaker 4. This increases the distance between the worn breaker 4 and the central axis 1, thereby improving the service life of the breaker 4.

[0040] refer to Figure 3 and Figure 4The fixing device 5 includes a fixing plate 51 and a fixing bolt 52. The fixing plate 51 is fixed to one end of the mounting rod 3. In this embodiment, the fixing plate 51 is welded to the end of the mounting rod 3. The partition plate closest to the fixing plate 51 has a threaded hole 23. The fixing plate 51 has a fixing slot 511. When the mounting rod 3 is located in the insertion hole 21 and the switching hole 22, it can be rotated to make the fixing slot 511 face the threaded hole 23. The fixing bolt 52 passes through the fixing slot 511 and is threadedly connected to the threaded hole 23, pressing the fixing plate 51 against the partition plate. At this time, the other end of the mounting rod 3 is inserted into the partition plate farthest from the fixing plate 51. The fixing plates 51 are all located at the same end of the mounting rod 3.

[0041] The fixing plate 51 acts as a limiting and intercepting element by abutting against the partition plate. After rotating the fixing plate 51 until the fixing slot 511 aligns with the threaded hole 23, a fixing bolt 52 passes through the fixing slot 511 and is threaded into the threaded hole 23, thus securing the fixing plate 51 to the partition plate and fixing its position, thereby fixing the position of the mounting rod 3. After the mounting rod 3 is inserted into the switching hole 22, the fixing plate 51 can be fixed in the same way. The positioning of the fixing plate 51 ensures that it is located at the same end of the mounting rod 3, allowing for the fixing and removal of multiple fixing plates 51 on the same partition plate.

[0042] The implementation principle of Embodiment 1 of this application is as follows: After the coal blocks selected by the coal blender pass through the feed inlet, they are crushed by the breaker hammer 4, which is swung by the rotating central shaft 1, thereby improving the coal blending quality of the coal blender. The setting of multiple partition plates not only effectively protects the mounting rod 3, but also supports the mounting rod 3, improving the stability of the mounting rod 3 during disassembly and replacement. The limiting cylinder 31 on the mounting rod 3 can effectively improve the positional stability of the breaker hammer 4, and the distribution of the breaker hammer 4 can effectively improve the crushing effect on coal blocks and other ores when the central shaft 1 rotates. After the breaker hammer 4 wears and shortens, the mounting rod 3 can be disassembled and installed in the switching hole 22, thereby installing the breaker hammer 4 in a position closer to the outside, improving the service life of the breaker hammer 4.

[0043] Example 2

[0044] refer to Figure 5 The difference between this embodiment and embodiment 1 is that a fastening ring plate 24 is fixed on the partition plate farthest from the card plate, and the mounting rod 3 is interference-fitted with the circumferential inner wall of the fastening ring plate 24.

[0045] The difference in the implementation principle of Embodiment 2 of this application is that the fastening ring plate 24 can fasten the other end of the mounting rod 3, thereby further improving the stability of the mounting rod 3 installation.

[0046] Example 3

[0047] refer to Figure 6 and Figure 7 The difference between this embodiment and embodiment 1 is that the fixing device 5 includes a fixing plate 53 and a fixing nut 54. The fixing plate 53 is fixed to one end of the mounting rod 3, and the fixing nut 54 is threaded to the other end of the mounting rod 3. When the fixing nut 54 abuts against one of the partition plates, the fixing plate 53 abuts against the partition plate at the far end.

[0048] The difference in the implementation principle of Embodiment 3 of this application is that when the fixing plate 53 abuts against the partition plate, the other end of the mounting rod 3 extends from the partition plate at the other end and is threadedly connected to the end of the mounting rod 3 through the fixing nut 54, so that the fixing nut 54 abuts against the partition plate, and at the same time the fixing plate 53 also abuts against the partition plate and is fixed, thereby completing the installation and fixing of the mounting rod 3.

[0049] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A crushing device, characterized in that: include The central shaft (1) is driven by a motor; There are multiple partition discs (2), which are arranged in parallel to each other and fixedly sleeved on the central shaft (1). The center of the partition disc (2) is on the axis of the central shaft (1). Insertion holes (21) are opened at the same position on the partition disc (2). There are multiple insertion holes (21) on one partition disc (2), and multiple opposite insertion holes (21) on different partition discs (2) form a group. There are multiple mounting rods (3), and one mounting rod (3) is inserted into the same set of insertion holes (21); Fixing device (5) is used to fix the mounting rod (3) to the partition plate; The breaker (4) is rotatably connected to the mounting rod (3) and located between the partition plates (2). When the end plate rotates, the hammer head of the breaker (4) can extend out of the partition plate (2) area.

2. A crushing device according to claim 1, characterized in that The positions of the breakers (4) on adjacent mounting rods (3) are staggered.

3. A crushing device according to claim 1, characterized in that: Multiple limiting cylinders (31) are fitted on the mounting rod (3). The limiting cylinders (31) are in groups of two and are located between two adjacent partition plates. The breaker hammer (4) is located between two limiting cylinders (31) in a group.

4. A crushing device according to claim 1, characterized in that: The partition plate (2) has a switching hole (22) near the insertion hole (21). The switching holes (22) on the multiple partition plates are positioned opposite each other and are used for the installation rod (3) to be inserted and fixed. The distance between the switching hole (22) and the central axis (1) is greater than the distance between the insertion hole (21) and the central axis (1).

5. A crushing device according to claim 1, characterized in that: The fixing device (5) includes a fixing plate (51) and a fixing bolt (52). The fixing plate (51) is fixed at one end of the mounting rod (3). The partition plate closest to the fixing plate (51) has a threaded hole (23). The fixing plate (51) has a fixing strip hole (511) opposite to the threaded hole (23). The fixing bolt (52) passes through the fixing strip hole (511) and is threaded to the threaded hole (23), thus pressing the fixing plate (51) against the partition plate.

6. A crushing device according to claim 5, characterized in that: A fastening ring plate (24) is fixed on the partition plate furthest from the fixed plate (51), and the mounting rod (3) is interference-fitted with the inner circumferential wall of the fastening ring plate (24).

7. A crushing device according to claim 1, characterized in that: The fixing device (5) includes a fixing plate (53) and a fixing nut (54). The fixing plate (53) is fixed to one end of the mounting rod (3), and the fixing nut (54) is threaded to the other end of the mounting rod (3). When the fixing nut (54) abuts against one of the partition plates, the fixing plate (53) abuts against the partition plate at the far end.

8. A coal blending plant comprising the crushing device according to any one of claims 1 to 7, characterized in that: The crushing device is installed at the feed inlet of the coal blender.

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