Machine-made sand production raw material gravel multi-stage crushing device

Abstract

The utility model provides a machine-made sand production raw material gravel multi-stage crushing device, and belongs to the technical field of machine-made sand production. Comprising a feeding box, the bottom of the feeding box is fixedly connected with an upper crushing box, the inner wall of the upper crushing box is fixedly connected with fixing teeth, one side of the fixing teeth is provided with a crushing roller, the two sides of the bottom of the crushing roller are provided with flow guide pipes, one ends of the flow guide pipes are provided with a lower crushing box, and the lower crushing box is internally provided with a reciprocating column; the lower surface of the pressing plate is fixedly connected with a hammering block. According to the utility model, the fixed teeth in the upper crushing box are matched with the rotating crushing roller, so that materials are preliminarily crushed under the co-extrusion action of the fixed teeth and the crushing roller, and then the reciprocating column mounted in the lower crushing box performs vertical reciprocating motion to drive the pressing plate to synchronously move; and the pressing plate drives a hammering block fixedly mounted on the lower surface of the pressing plate to hammer up and down in the lower crushing box in a reciprocating manner, so that the raw materials are subjected to secondary crushing, and the crushing quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine-made sand production, in particular to a multi-stage crushing device for crushed stone, a raw material for machine-made sand production. Background Art

[0002] Machine-made sand is sand produced using a sand making machine and other ancillary equipment. The finished product is more regular and can be processed into sand of varying sizes and shapes to meet specific process requirements, better meeting daily needs. Producing qualified and suitable sand requires specialized equipment. A multi-stage crushing unit can be used to crush the raw materials for machine-made sand.

[0003] During the actual use of the crushing device by personnel, due to the influence of the different textures of the raw materials of artificial sand, there may be uneven force inside the device, resulting in incomplete crushing of the raw materials, thereby increasing the operating time of the device and reducing the practicality of the device. Therefore, this application provides a multi-stage crushing device for gravel of artificial sand production raw materials to meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-stage crushing device for crushed stone of raw materials for producing artificial sand, so as to solve the problem that in the process of existing multi-stage crushing devices, due to the influence of raw materials of artificial sand of different textures, there may be uneven force inside the device, resulting in incomplete crushing of raw materials, thereby increasing the operating time of the device and reducing the practicality of the device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A multi-stage crushing device for crushed stone as raw material for machine-made sand production comprises a feed box, an upper crushing box fixedly connected to the bottom of the feed box, fixed teeth fixedly connected to the inner wall of the upper crushing box, and a crushing roller provided on one side of the fixed teeth.

[0007] Guide pipes are installed on both sides of the bottom of the crushing roller, and a lower crushing box is installed at one end of the guide pipe. A reciprocating column is arranged in the lower crushing box. A pressure plate is fixedly connected to the lower surface of the reciprocating column, and a hammer block is fixedly connected to the lower surface of the pressure plate.

[0008] Preferably, a main shaft is provided in a rotating sleeve in the middle of the upper crushing box, and auxiliary shafts are provided on both sides of the main shaft, and rotating sleeves on both sides of the auxiliary shaft are provided in the upper crushing box.

[0009] Preferably, a driving gear is fixedly sleeved at one end of the main shaft, and a driven gear is fixedly sleeved at one end of the secondary shaft. The driving gear and the driven gear are meshed for transmission, and crushing rollers are fixedly sleeved on both the main shaft and the secondary shaft.

[0010] Preferably, one end of the guide pipe is fixedly connected to the upper crushing box, and one end of the guide pipe is fixedly connected to the lower crushing box, and a load-bearing plate is slidably inserted into the bottom of the lower crushing box.

[0011] Preferably, the upper surface of the lower crushing box is fixedly connected to a support platform, the upper surface of the support platform is fixedly connected to a small motor, and the lower surface of the support platform is fixedly connected to a sliding sleeve.

[0012] Preferably, the bottom of the sliding sleeve is fixedly connected to the limiting sleeve, the reciprocating column sliding sleeve is arranged in the sliding sleeve and the limiting sleeve, and the inner ring surface of the reciprocating column is fixedly connected to the sliding column.

[0013] Preferably, a spring is fixedly connected between the reciprocating column and the sliding sleeve, a T-shaped column is provided inside the spring, one end of the T-shaped column is fixedly connected to the output end of the small motor, and the outer ring surface of the other end of the T-shaped column is fixedly connected to a spiral piece, and the spiral piece and the sliding column are slidably connected.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: the material is added from the feed box, the material enters the upper crushing box, and the fixed teeth in the upper crushing box cooperate with the rotating crushing roller, so that under the joint extrusion of the fixed teeth and the crushing roller, the material is initially crushed, and the squeezed raw materials fall to the guide pipe, and are guided by the guide pipe, so that the raw materials enter the lower crushing box, and then the reciprocating column installed in the lower crushing box makes a vertical reciprocating motion, thereby driving the pressure plate to move synchronously, so that the pressure plate drives the hammer block fixedly installed on its lower surface to hammer up and down in the lower crushing box, so that the raw materials are crushed for the second time, and the hammer block is provided with a number of intervals, so that the raw materials can be hammered evenly, thereby ensuring that the raw materials are evenly stressed, and then the raw materials are completely crushed, so that the crushing device has the ability of multi-stage crushing, and the secondary crushing structure can make the raw materials more evenly crushed in the crushing process, thereby improving the quality of crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable one skilled in the relevant art to make and use the present disclosure.

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a top view schematic diagram of the internal structure of the utility model;

[0018] Figure 3 This is a bottom view schematic diagram of the internal structure of the utility model;

[0019] Figure 4 It is a side view schematic diagram of the internal structure of the utility model.

[0020] In the figure: 1. Feed box; 2. Upper crushing box; 3. Fixed teeth; 4. Crushing roller; 5. Guide pipe; 6. Lower crushing box; 7. Reciprocating column; 8. Pressure plate; 9. Hammer block; 10. Main shaft; 11. Countershaft; 12. Driving gear; 13. Driven gear; 14. Bearing plate; 15. Support platform; 16. Small motor; 17. Sliding sleeve; 18. Limiting sleeve; 19. Sliding column; 20. Spring; 21. T-shaped column; 22. Spiral sheet.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0022] The following describes in detail a multi-stage crushing device for crushed stone used as raw material for machine-made sand production, provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are best and preferred embodiments. For some known technologies, those skilled in the art may also employ alternative implementations. Furthermore, the accompanying drawings are provided solely for the purpose of describing the embodiments in greater detail and are not intended to limit the present invention.

[0023] like Figure 1 - Figure 4 As shown, an embodiment of the present invention provides a multi-stage crushing device for crushed stone raw materials for machine-made sand production, including: a feed box 1, an upper crushing box 2 is fixedly connected to the bottom of the feed box 1, a fixed tooth 3 is fixedly connected to the inner wall of the upper crushing box 2, a crushing roller 4 is provided on one side of the fixed tooth 3, a guide pipe 5 is installed on both sides of the bottom of the crushing roller 4, a lower crushing box 6 is installed at one end of the guide pipe 5, a reciprocating column 7 is provided in the lower crushing box 6, a pressure plate 8 is fixedly connected to the lower surface of the reciprocating column 7, and a hammer block 9 is fixedly connected to the lower surface of the pressure plate 8.

[0024] The material is added from the feed box 1 and enters the upper crushing box 2. The fixed teeth 3 in the upper crushing box 2 cooperate with the rotating crushing roller 4. Under the joint extrusion of the fixed teeth 3 and the crushing roller 4, the material is initially crushed. The extruded raw materials fall to the guide pipe 5 and are guided by the guide pipe 5, so that the raw materials enter the lower crushing box 6. The reciprocating column 7 installed in the lower crushing box 6 makes a vertical reciprocating motion, thereby driving the pressing plate 8 to move synchronously, so that the pressing plate 8 drives the hammer block 9 fixed on its lower surface to hammer back and forth in the lower crushing box 6, so that the raw materials are crushed for the second time, thereby making the crushing device have the ability of multi-stage crushing. The secondary crushing structure can make the raw materials more evenly crushed in the crushing process, thereby improving the crushing quality.

[0025] like Figure 1 - Figure 2 As shown, a main shaft 10 is provided in the middle of the upper crushing box 2 for rotation, and a secondary shaft 11 is provided on both sides of the main shaft 10. Both sides of the secondary shaft 11 are rotatably sleeved in the upper crushing box 2. The main shaft 10 and the secondary shaft 11 are both rotatably sleeved in the upper crushing box 2. A drive motor is fixedly connected to one side of the upper crushing box 2. The output end of the drive motor is fixedly connected to the main shaft 10. A driving gear 12 is fixedly sleeved at one end of the main shaft 10, and a driven gear 13 is fixedly sleeved at one end of the secondary shaft 11. The driving gear 12 and the driven gear 13 are meshed for transmission. Crushing rollers 4 are fixedly sleeved on both the main shaft 10 and the secondary shaft 11. The driving gear 12 fixedly sleeved at one end of the main shaft 10 is meshed for transmission with the driven gear 13 fixedly sleeved at one end of the secondary shaft 11. The fixed sleeve is arranged on the main shaft 10 and the secondary shaft 11, one end of the guide pipe 5 is fixedly connected to the upper crushing box 2, and one end of the guide pipe 5 is fixedly connected to the lower crushing box 6. A bearing plate 14 is slidably inserted at the bottom of the lower crushing box 6. The guide pipe 5 is provided with a group of two and is symmetrically arranged about the central plane of the upper crushing box 2. The upper end of the guide pipe 5 is connected to the bottom of the upper crushing box 2, and the lower end of the guide pipe 5 is connected to one side of the lower crushing box 6, so as to facilitate the drainage of the raw materials. The bearing plate 14 is slidably installed on the bottom of the lower crushing box 6. When the bearing plate 14 does not need to be pulled out, the bearing plate 14 is fixedly connected to the lower crushing box 6 by bolts. When the bearing plate 14 needs to be pulled out, the bearing plate 14 can be taken out by removing the bolts, thereby facilitating the removal of the material.

[0026] The driving motor is electrically connected to the external terminal control device. By adding the raw materials from the feed box 1, the raw materials fall into the upper crushing box 2. At this time, by starting the driving motor, the driving motor drives the main shaft 10 fixedly connected to its output end to rotate, and the main shaft 10 thereby drives the crushing roller 4 mounted thereon to rotate. While the main shaft 10 rotates, the main shaft 10 drives the driving gear 12 to rotate, and the driving gear 12 engages with the driven gear 13 for transmission, so that the driven gear 13 drives the countershaft 11 to rotate, and the countershaft 11 thereby drives the crushing roller 4 fixed thereon to rotate. Then, under the joint rotation action of the main shaft 10 and the countershaft 11, the crushing roller 4 and the fixed teeth 3 squeeze and crush the raw materials, thereby preliminarily crushing larger pieces of material, and then the preliminarily crushed raw materials fall into the lower crushing box 6 through the drainage of the guide pipe 5 for secondary crushing.

[0027] like Figure 3 - Figure 4 As shown, the upper surface of the lower crushing box 6 is fixedly connected to a support platform 15, the upper surface of the support platform 15 is fixedly connected to a small motor 16, the lower surface of the support platform 15 is fixedly connected to a sliding sleeve 17, the support platform 15 is fixedly installed on the top of the lower crushing box 6, the small motor 16 and the sliding sleeve 17 are fixedly supported by the support platform 15, the bottom of the sliding sleeve 17 is fixedly connected to a limiting sleeve 18, the sliding sleeve of the reciprocating column 7 is arranged in the sliding sleeve 17 and the limiting sleeve 18, the inner ring surface of the reciprocating column 7 is fixedly connected to a sliding column 19, the sliding sleeve 17 and the limiting sleeve 18 jointly limit the reciprocating column 7 when sliding, and there is a gap between the reciprocating column 7 and the sliding sleeve 17. A spring 20 is fixedly connected, and a T-shaped column 21 is sleeved inside the spring 20. One end of the T-shaped column 21 is fixedly connected to the output end of the small motor 16, and the outer ring surface of the other end of the T-shaped column 21 is fixedly connected to a spiral piece 22. The spiral piece 22 and the sliding column 19 are slidingly connected. The upper surface of the reciprocating column 7 is fixedly connected to one end of the spring 20, and the other end of the spring 20 is fixedly connected to the sliding sleeve 17. The output end of the small motor 16 passes through the top of the support platform 15 and is fixedly connected to the T-shaped column 21, thereby driving the T-shaped column 21 to rotate, so that the spiral piece 22 fixedly connected on the T-shaped column 21 slides between the sliding column 19.

[0028] The small motor 16 is electrically connected to the external terminal control device. When the raw material that has been crushed once enters the lower crushing box 6 through the guide pipe 5, the small motor 16 is started at this time, and the small motor 16 drives the T-shaped column 21 fixedly connected to its output end to rotate. Under the rotation of the T-shaped column 21, the spiral piece 22 is driven to rotate, so that the spiral piece 22 slides between the sliding column 19. Due to the design of its spiral structure, the spiral piece 22 presses the sliding column 19 to move, and the sliding column 19 drives the reciprocating column 7 to slide into the sliding sleeve 17, and the spring 20 is compressed. This process is a force storage process. When the spring 20 is compressed to the limit, the spiral piece 22 no longer presses the sliding column 19. At this time, since the sliding column 19 is not blocked, under the reverse elastic force of the spring 20, it will The reciprocating column 7 is pushed out to the outside of the sliding sleeve 17. This process is the releasing process, so that the reciprocating column 7 can move vertically back and forth in the sliding sleeve 17 under the limiting action of the limiting sleeve 18, and then the reciprocating column 7 drives the pressure plate 8 fixed at its bottom to move, and the pressure plate 8 then drives the hammer block 9 to move synchronously, so that the hammer block 9 hammers up and down in the lower crushing box 6, thereby performing secondary crushing on the raw material. The hammer block 9 is provided with a number of spacers, so that the raw material can be hammered evenly, thereby ensuring that the raw material is evenly stressed, and then the raw material is completely crushed for subsequent use. When the secondary crushing is completed, the load-bearing plate 14 is removed by removing the bolts installed between the load-bearing plate 14 and the lower crushing box 6, and the raw material flows out of the lower crushing box 6.

[0029] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0030] The above is only 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 within the scope of protection of the present invention.

Claims

1. A multi-stage crushing device for crushed stone raw materials for machine-made sand production, comprising a feed box (1), characterized in that: The bottom of the feed box (1) is fixedly connected to an upper crushing box (2), the inner wall of the upper crushing box (2) is fixedly connected to a fixed tooth (3), and a crushing roller (4) is provided on one side of the fixed tooth (3); Guide pipes (5) are installed on both sides of the bottom of the crushing roller (4), a lower crushing box (6) is installed at one end of the guide pipe (5), a reciprocating column (7) is arranged in the lower crushing box (6), a pressure plate (8) is fixedly connected to the lower surface of the reciprocating column (7), and a hammer block (9) is fixedly connected to the lower surface of the pressure plate (8).

2. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 1 is characterized in that: A main shaft (10) is rotatably sleeved in the middle of the upper crushing box (2), and auxiliary shafts (11) are provided on both sides of the main shaft (10). Both sides of the auxiliary shaft (11) are rotatably sleeved in the upper crushing box (2).

3. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 2 is characterized in that: A driving gear (12) is fixedly sleeved on one end of the main shaft (10), and a driven gear (13) is fixedly sleeved on one end of the secondary shaft (11). The driving gear (12) and the driven gear (13) are meshed and driven. A crushing roller (4) is fixedly sleeved on both the main shaft (10) and the secondary shaft (11).

4. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 3 is characterized in that: One end of the guide pipe (5) is fixedly connected to the upper crushing box (2), and one end of the guide pipe (5) is fixedly connected to the lower crushing box (6). A bearing plate (14) is slidably inserted at the bottom of the lower crushing box (6).

5. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 4 is characterized in that: The upper surface of the lower crushing box (6) is fixedly connected to a support platform (15), the upper surface of the support platform (15) is fixedly connected to a small motor (16), and the lower surface of the support platform (15) is fixedly connected to a sliding sleeve (17).

6. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 5, characterized in that: The bottom of the sliding sleeve (17) is fixedly connected to the limiting sleeve (18), the sliding sleeve of the reciprocating column (7) is arranged in the sliding sleeve (17) and the limiting sleeve (18), and the inner ring surface of the reciprocating column (7) is fixedly connected to the sliding column (19).

7. The multi-stage crushing device for crushed stone as raw material for machine-made sand production according to claim 6, characterized in that: A spring (20) is fixedly connected between the reciprocating column (7) and the sliding sleeve (17), a T-shaped column (21) is provided inside the spring (20), one end of the T-shaped column (21) is fixedly connected to the output end of the small motor (16), and the outer ring surface of the other end of the T-shaped column (21) is fixedly connected to a spiral piece (22), and the spiral piece (22) is slidably connected to the sliding column (19).

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