Efficient sand making machine for gravel processing

Abstract

The utility model relates to the technical field of sandstone processing, and discloses an efficient sand making machine for sandstone processing, which comprises a base, two motors are arranged at the top of the base, belt transmission mechanisms are arranged at the output ends of the two motors, one end of each belt transmission mechanism is fixedly connected with a second roller shaft, one end of each second roller shaft is provided with a fixing assembly, and the fixing assembly is fixedly connected with the base. The fixing assembly comprises a threaded sleeve, the inner wall of the threaded sleeve is in threaded connection with the outer wall of a second roller shaft, one end of the second roller shaft is fixedly connected with a positioning block, the outer wall of the positioning block is slidably connected with a first roller shaft, and the first roller shaft and the second roller shaft are both rotationally connected with rotating shaft bases. According to the sand making machine, the problems that a roller of a traditional sand making machine is prone to being abraded due to material properties and needs to be replaced frequently, operation is tedious, time and labor are consumed during replacement, and maintenance cost and downtime are increased are effectively solved, and the effect of rapidly replacing the roller is achieved.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel processing technology, and in particular to a high-efficiency sand making machine for sand and gravel processing. Background Technology

[0002] Sand and gravel are granular materials formed by the natural weathering, water transport, sorting, and deposition of rocks. They are mainly divided into natural sand and manufactured sand. They are widely used in construction, road, bridge and other engineering fields and are key components of building materials such as concrete and mortar. The particle size and shape of natural sand and gravel are difficult to fully meet the requirements of high-standard projects. Sand making machines can process various ores, tailings and other raw materials into manufactured sand with uniform particle size, excellent particle shape and reasonable gradation.

[0003] In traditional high-efficiency sand making machines, sand and gravel materials fall evenly from the feed inlet between two rollers during sand making. The two rollers rotating in opposite directions use strong friction to carry the material into the crushing chamber, where the material is crushed by the squeezing and grinding action generated by the teeth or smooth surfaces of the rollers.

[0004] Traditional sand making machines require frequent roller replacement due to wear caused by the properties of the material. The replacement process is cumbersome, time-consuming, and labor-intensive, increasing maintenance costs and downtime. In addition, during the crushing process, particles fall off the surface of the material, forming dust and causing environmental pollution. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-efficiency sand making machine for sand and gravel processing, which aims to improve the problem that traditional sand making machines require frequent replacement of rollers due to wear caused by the properties of materials. The replacement process is cumbersome, time-consuming, and labor-intensive, which increases maintenance costs and downtime.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency sand making machine for sand and gravel processing, comprising a base, two motors being provided on the top of the base, and belt drive mechanisms being provided at the output ends of the two motors, with a roller shaft two fixedly connected to one end of the belt drive mechanism, and a fixing component being provided at one end of the roller shaft two.

[0007] The fixing assembly includes a threaded sleeve, the inner wall of which is threadedly connected to the outer wall of the second roller. A positioning block is fixedly connected to one end of the second roller. A first roller is slidably connected to the outer wall of the positioning block. Both the first and second rollers are rotatably connected to a rotating shaft base. Adjusting blocks are provided on both sides of the outer wall of the rotating shaft base. The outer wall of the adjusting blocks is slidably connected to the inside of the base. Bolts are threadedly connected to the inside of the base. A spring is fixedly connected to the outer wall of the rotating shaft base. A fixing plate is fixedly connected to one end of the spring. A housing is fixedly connected to the outer wall of the fixing plate.

[0008] Furthermore, a fan is fixedly connected to the upper surface of the base, an air outlet duct is fixedly connected to the output end of the fan, a filter box is fixedly connected to one end of the air outlet duct, a filter screen is installed inside the filter box, a guide pipe is fixedly connected to the outer wall of the filter screen, a dust suction pipe is fixedly connected to both sides of the outer wall of the guide pipe, and a dust suction head is fixedly connected to one end of the dust suction pipe.

[0009] Furthermore, both roller shaft one and roller shaft two have external threads on their outer walls that match the inner wall of the threaded sleeve, and the outer wall of roller shaft one is threadedly connected to the inner wall of the guide pipe.

[0010] Furthermore, a feed hopper is fixedly connected to the upper surface of the box, and both roller shaft one and roller shaft two are rotatably connected inside the box.

[0011] Furthermore, the bolt is threaded inside the adjusting block, and the outer wall of the fixing plate is fixedly connected to the upper surface of the base.

[0012] Furthermore, the base has several threaded holes inside, and the two motors are respectively located on both sides of the outer wall of the housing.

[0013] Furthermore, the outer wall of the suction pipe is fixedly connected to the outer wall of the box, and the suction head is located inside the box.

[0014] Furthermore, the filter box is disposed between the housing and the fan, and the filter box is disposed on the upper surface of the base.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by rotating the threaded sleeve to make it withdraw axially along the external thread of the second roller shaft, the mechanical limit of the positioning block on the inner wall of the first roller shaft is released, and the first roller shaft and the second roller shaft can be quickly separated. Rotating the threaded sleeve in the opposite direction can achieve a rigid connection through thread self-locking. This solves the problem that the rollers of the traditional sand making machine are easily worn due to the properties of the material, requiring frequent replacement. The replacement operation is cumbersome, time-consuming and labor-intensive, increasing maintenance costs and downtime. This invention achieves the effect of quick roller replacement.

[0017] 2. In this utility model, the fan generates negative pressure through the dust suction head inside the box. The dust-laden airflow flows through the dust suction pipe and into the guide pipe. After being efficiently separated by the filter screen in the filter box, the clean air is discharged through the air outlet pipe. This solves the problem of dust formation caused by the shedding of material surface particles during the crushing process of traditional sand making machines, which leads to environmental pollution. It achieves the effect of dust collection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a high-efficiency sand making machine for sand and gravel processing proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of one side of the base structure of a high-efficiency sand making machine for sand and gravel processing proposed in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the housing structure of a high-efficiency sand making machine for sand and gravel processing proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the threaded sleeve portion of a high-efficiency sand making machine for sand and gravel processing proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the filter box structure of a high-efficiency sand making machine for sand and gravel processing proposed in this utility model.

[0024] Legend:

[0025] 1. Base; 2. Motor; 3. Belt drive mechanism; 4. Feed hopper; 5. Box body; 6. Fan; 7. Filter box; 8. Guide pipe; 9. Fixing plate; 10. Spring; 11. Rotary shaft base; 12. Roller shaft one; 13. Roller shaft two; 14. Adjusting block; 15. Bolt; 16. Dust suction pipe; 17. Threaded sleeve; 18. Filter screen; 19. Air outlet pipe; 20. Positioning block; 21. Dust suction head. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 - Figure 6 An embodiment of this utility model is provided: a high-efficiency sand making machine for sand and gravel processing, including a base 1, two motors 2 are provided on the top of the base 1, the motors 2 drive the belt transmission mechanism 3 through output power to drive the roller shaft 13 to rotate, so as to realize double roller grinding sand making; the output end of each of the two motors 2 is provided with a belt transmission mechanism 3, one end of the belt transmission mechanism 3 is fixedly connected to the roller shaft 13, and one end of the roller shaft 13 is provided with a fixing component;

[0028] The fixing assembly includes a threaded sleeve 17, the inner wall of which is threadedly connected to the outer wall of roller shaft 13. A positioning block 20 is fixedly connected to one end of roller shaft 13, and the positioning block 20 is fixed to the end of roller shaft 13 and inserted into the inner wall groove of roller shaft 12 to restrict its circumferential rotation. It works with the threaded sleeve 17 to achieve axial fixation. Roller shaft 12 is slidably connected to the outer wall of the positioning block 20. Both roller shaft 12 and roller shaft 13 are rotatably connected to a shaft base 11. Roller shaft 12 is slidably connected to roller shaft 13 through the positioning block 20 and fixed with the threaded sleeve 17. Adjusting blocks 14 are provided on both sides of the outer wall of the shaft base 11. The shaft base 11 ensures the rotation accuracy of the roller shaft and avoids uneven sand making caused by shaking. The outer wall of the adjusting block 14 is slidably connected to the inside of the base 1. Bolts 15 are threadedly connected inside the base 1, and the adjusting block 14 can slide inside the base 1. The roller shaft is fixed in position to adjust the distance between roller shaft 12 and roller shaft 13. A spring 10 is fixedly connected to the outer wall of the rotating shaft base 11. The spring 10 absorbs the impact vibration generated by the crushing of sand and gravel during the sand making process, reduces equipment wear, and ensures that the roller shaft distance remains stable under impact. A fixing plate 9 is fixedly connected to one end of the spring 10. A box 5 is fixedly connected to the outer wall of the fixing plate 9. A fan 6 is fixedly connected to the upper surface of the base 1. An air outlet duct 19 is fixedly connected to the output end of the fan 6. A filter box 7 is fixedly connected to one end of the air outlet duct 19. A filter screen 18 is installed inside the filter box 7. The filter box 7 and the filter screen 18 efficiently separate dust to achieve air purification. At the same time, the recovered dust can be reused. A guide pipe 8 is fixedly connected to the outer wall of the filter screen 18. Dust suction pipes 16 are fixedly connected to both sides of the outer wall of the guide pipe 8. A dust suction head 21 is fixedly connected to one end of the dust suction pipe 16.

[0029] Reference Figure 1 - Figure 6 Both roller shaft 12 and roller shaft 23 have external threads on their outer walls that match the inner wall of the threaded sleeve 17. The inner thread of the threaded sleeve 17 meshes with the outer wall of roller shaft 23, allowing axial movement during rotation. The two are fixed by the positioning block 20 on the inner wall of roller shaft 12. The outer thread of roller shaft 12 is threadedly connected to the inner wall of the guide pipe 8. A feed hopper 4 is fixedly connected to the upper surface of the housing 5, used to introduce sand and gravel raw materials. Both roller shaft 12 and roller shaft 23 are rotatably connected inside the housing 5. Bolt 15 is used for screwing... The threaded connection is inside the adjusting block 14, and the bolt 15 is threadedly connected to the adjusting block 14 and the base 1, fixing the position of the fixed shaft base 11 after the distance is adjusted. The outer wall of the fixing plate 9 is fixedly connected to the upper surface of the base 1. The base 1 has several threaded holes inside. The two motors 2 are respectively set on both sides of the outer wall of the box 5. The outer wall of the dust collection pipe 16 is fixedly connected to the outer wall of the box 5. The dust collection head 21 is set inside the box 5. The filter box 7 is set between the box 5 and the fan 6. The filter box 7 is set on the upper surface of the base 1.

[0030] Working principle: When the sand making machine is needed for sand making, the dual motors 2 drive the belt transmission mechanism 3 to rotate the roller shaft 13, forming a double roller grinding sand making process. First, the axial displacement of the adjusting block 14 in the slide groove of the base 1 adjusts the distance between the rotating shaft base 11, and the bolts 15 are used for precise fixing, realizing the fine adjustment of the gap between the roller shaft 12 and the roller shaft 13. The elastic buffer system composed of the spring 10 and the fixing plate 9 can absorb the crushing impact, ensuring that the sand and gravel are efficiently formed under the action of the rollers. When the roller shaft needs to be replaced, the operator rotates the threaded sleeve 17 clockwise, and the threads on the inner wall of the inner wall of the inner wall of the roller shaft 13 generate axial distribution. Force is applied to push the threaded sleeve 17 outward along the roller axis until it is completely separated from the positioning block 20 on the inner wall of the roller shaft 12, thereby releasing the circumferential mechanical limit constraint between the roller shaft 12 and the roller shaft 23. During reassembly, the threaded sleeve 17 is tightened counterclockwise after being aligned by the positioning block 20, and a rigid connection is formed by utilizing the self-locking characteristic of the thread. In addition, during the operation of the equipment, the fan 6 generates negative pressure through the dust suction head 21 in the housing 5. The dust-laden airflow flows through the dust suction pipe 16 into the guide pipe 8. After being efficiently separated by the filter screen 18 in the filter box 7, the clean air is discharged through the exhaust pipe 19, forming a closed dust treatment system that effectively controls the dust generated during sand making operations.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency sand making machine for sand and gravel processing, comprising a base (1), characterized in that: The base (1) is equipped with two motors (2) on the top. Each of the two motors (2) is equipped with a belt drive mechanism (3) at its output end. One end of the belt drive mechanism (3) is fixedly connected to a roller shaft (13), and one end of the roller shaft (13) is equipped with a fixing component. The fixing component includes a threaded sleeve (17), the inner wall of which is threadedly connected to the outer wall of roller shaft two (13). One end of roller shaft two (13) is fixedly connected to a positioning block (20), the outer wall of the positioning block (20) is slidably connected to roller shaft one (12), both roller shaft one (12) and roller shaft two (13) are rotatably connected to a rotating shaft base (11), both sides of the outer wall of the rotating shaft base (11) are provided with adjusting blocks (14), the outer wall of the adjusting blocks (14) is slidably connected to the inside of the base (1), the inside of the base (1) is threadedly connected to a bolt (15), the outer wall of the rotating shaft base (11) is fixedly connected to a spring (10), one end of the spring (10) is fixedly connected to a fixing plate (9), and the outer wall of the fixing plate (9) is fixedly connected to a box (5).

2. The high-efficiency sand making machine for sand and gravel processing according to claim 1, characterized in that: A fan (6) is fixedly connected to the upper surface of the base (1). An air outlet pipe (19) is fixedly connected to the output end of the fan (6). A filter box (7) is fixedly connected to one end of the air outlet pipe (19). A filter screen (18) is provided inside the filter box (7). A guide pipe (8) is fixedly connected to the outer wall of the filter screen (18). A dust suction pipe (16) is fixedly connected to both sides of the outer wall of the guide pipe (8). A dust suction head (21) is fixedly connected to one end of the dust suction pipe (16).

3. The high-efficiency sand making machine for sand and gravel processing according to claim 1, characterized in that: Both roller shaft one (12) and roller shaft two (13) have external threads that match the inner wall of the threaded sleeve (17) on their outer walls. The outer wall of roller shaft one (12) is threadedly connected to the inner wall of the guide pipe (8).

4. The high-efficiency sand making machine for sand and gravel processing according to claim 1, characterized in that: The upper surface of the box (5) is fixedly connected to the feed hopper (4), and the roller shaft one (12) and roller shaft two (13) are rotatably connected inside the box (5).

5. The high-efficiency sand making machine for sand and gravel processing according to claim 1, characterized in that: The bolt (15) is threaded inside the adjusting block (14), and the outer wall of the fixing plate (9) is fixedly connected to the upper surface of the base (1).

6. The high-efficiency sand making machine for sand and gravel processing according to claim 1, characterized in that: The base (1) has several threaded holes inside, and the two motors (2) are respectively located on both sides of the outer wall of the housing (5).

7. The high-efficiency sand making machine for sand and gravel processing according to claim 2, characterized in that: The outer wall of the suction pipe (16) is fixedly connected to the outer wall of the box (5), and the suction head (21) is set inside the box (5).

8. The high-efficiency sand making machine for sand and gravel processing according to claim 2, characterized in that: The filter box (7) is located between the box body (5) and the fan (6), and the filter box (7) is located on the upper surface of the base (1).

Images