Stone crushing device for deep foundation pit excavation

Abstract

The utility model relates to the technical field of earthwork excavation, in particular to a stone crushing device for deep foundation pit excavation, which comprises a box body, supporting legs integrally formed with the box body are arranged at four corners of the bottom of the box body, one end of the box body is fixedly connected with a supporting table, and a pair of first motors is fixedly mounted at the top of the supporting table. A triangular plate is arranged above the grinding roller, one end of the triangular plate is fixedly connected with the inner wall of the box body, a discharging opening is formed in the bottom of the box body, an opening is formed in one side of the top of the box body, a feeding device is arranged on one side of the opening, and a dust falling device is arranged on the top of the box body; the stone crushing device has the advantages that flying dust generated during stone crushing can be effectively treated, continuous feeding can be achieved, and the use efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earth excavation, in particular to a stone crushing device for deep foundation pit excavation. Background Art

[0002] Deep foundation pit excavation refers to the process of digging deeper underground spaces to accommodate the foundations of buildings or underground facilities during construction or foundation engineering. This type of excavation usually faces various geological conditions and soil types. Large rocks or lumps of soil generated during the excavation process may occupy a large amount of transportation space and increase transportation costs if they are not processed and transported directly. By breaking up these rocks first, the volume can be greatly reduced, thereby reducing subsequent transportation costs and logistics complexity.

[0003] The utility model patent with announcement number CN217856360U discloses a stone crushing device for earth excavation, including a shell, a fixed frame and a support frame, one side of the shell is connected to the fixed frame by bolts, a screw rod is installed in the fixed frame by a bearing, a corresponding screw block is arranged on the periphery of the screw rod, a sliding frame is connected between the screw blocks by bolts, one side of the sliding frame is connected to a support plate by a hinge, and support frames are arranged on both sides of the shell. The utility model is a stone crushing device for earth excavation, which has a simple structure and is easy to operate, and is stable and reasonable to use, has high practical value, and is suitable for being widely promoted and used.

[0004] However, the patent uses atomizing nozzles to spray water mist for dust reduction, which is likely to increase the water content of gravel or soil, thereby increasing the transportation weight and affecting the transportation efficiency. Utility Model Content

[0005] The utility model aims to provide a stone crushing device for deep foundation pit excavation in view of the above-mentioned deficiencies of the prior art, which can effectively handle the dust generated during stone crushing and facilitate subsequent transportation.

[0006] The technical solution adopted by the utility model is a stone crushing device for deep foundation pit excavation, including a box body, four corners of the bottom of the box body are provided with support legs integrally formed with the box body, one end of the box body is fixedly connected to a support platform, a pair of first motors are fixedly installed on the top of the support platform, the rotor parts of the pair of first motors all pass through the box body and enter the interior of the box body and are fixedly connected to rolling rollers, a triangular plate is provided above the rolling roller, one end of the triangular plate is fixedly connected to the inner wall of the box body, a discharge port is provided at the bottom of the box body, an opening is provided on one side of the top of the box body, a feeding device is provided on one side of the opening, and a dust suppression device is provided on the top of the box body.

[0007] Preferably, the feeding device includes a support frame, a support column integrally formed with the support frame is provided at the bottom of the support frame, a support frame is fixedly installed at one end of the support frame, a second motor is fixedly installed on the top of the support frame, the rotor part of the second motor passes through the support frame and is fixedly connected to a driving shaft, a plurality of driven shafts are provided on one side of the driving shaft, a conveyor belt is sleeved on the surface of the driving shaft and the driven shaft, and a plurality of baffles are provided on the surface of the conveyor belt.

[0008] Preferably, the dust reduction device includes a suction cup, which is arranged in a box body, and an air inlet pipe is fixedly connected to the top of the suction cup, and the air inlet pipe passes through the box body and is fixedly connected to a dust removal box, a placement plate integrally formed with the dust removal box is provided in the dust removal box, a plurality of through holes are opened on the surface of the placement plate, and dust bags are provided in the through holes, a negative pressure fan is fixedly connected to one side of the dust removal box, the air intake port of the negative pressure fan is fixedly connected to the dust removal box, the exhaust hole of the negative pressure fan is fixedly connected to the exhaust pipe, and a box cover is provided in contact with the dust removal box.

[0009] Preferably, the sharp parts of the box body are all provided with rounded corners.

[0010] Preferably, a reinforcement rod is provided under the support frame, one end of the reinforcement rod is fixedly connected to the bottom of the support frame, and the other end is fixedly connected to the support column.

[0011] Preferably, a pair of handles are fixedly mounted on the top of the box cover, and the pair of handles are symmetrically arranged.

[0012] Preferably, a sealing strip is fixedly installed at the contact point between the box cover and the dust removal box.

[0013] The utility model is simple and convenient to use. It only needs to start the first motor and the second motor. The rotation of the first motor will drive the rolling roller to rotate, which is convenient for crushing the stones. The rotation of the second motor will drive the driving shaft to rotate, and then drive the conveyor belt to rotate. At this time, pour the stones to be crushed onto the conveyor belt, and the stones can be transported into the box through the conveyor belt, and then fall into the rolling roller for crushing. At this time, starting the fan can suck the gas containing a large amount of dust in the box into the dust removal box, and discharge it after the dust is reduced by the dust removal bag.

[0014] Compared with the prior art, the beneficial effect of the utility model is that it can effectively handle the dust generated by crushing, improve the use effect, and can also continuously input crushed stone like a rolling roller through a conveyor belt, which can effectively improve the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a stone crushing device for deep foundation pit excavation proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a stone crushing device for deep foundation pit excavation proposed by the utility model;

[0017] Figure 3This is an enlarged view of the structure of location B of a stone crushing device for deep foundation pit excavation proposed by the utility model;

[0018] Figure 4 This is an enlarged view of the structure of location A of a stone crushing device for deep foundation pit excavation proposed by the utility model.

[0019] Description of the symbols in the figure

[0020] 1. Box body; 12. Support legs; 13. Support platform; 14. First motor; 15. Roller; 16. Triangle plate; 17. Discharge port; 2. Feeding device; 21. Support frame; 22. Support column; 23. Support frame; 24. Second motor; 25. Driving shaft; 26. Driven shaft; 27. Conveyor belt; 28. Baffle; 3. Dust suppression device; 31. Suction cup; 32. Inlet pipe; 33. Dust removal box; 34. Placement plate; 35. Dust bag; 36. Negative pressure fan; 37. Exhaust pipe; 38. Box cover; 4. Rounded corners; 5. Reinforcement rod; 6. Handle. DETAILED DESCRIPTION

[0021] Figure 1 , Figure 2 and Figure 3 The utility model schematically shows a stone crushing device for deep foundation pit excavation, including a box body 1, wherein the four corners of the bottom of the box body 1 are provided with support legs 12 integrally formed with the box body 1, one end of the box body 1 is fixedly connected to a support platform 13, a pair of first motors 14 are fixedly installed on the top of the support platform 13, the rotor parts of the pair of first motors 14 all pass through the box body 1 and enter the box body 1, and are fixedly connected to a rolling roller 15, a triangular plate 16 is provided above the rolling roller 15, one end of the triangular plate 16 is fixedly connected to the inner wall of the box body 1, a discharge port 17 is provided at the bottom of the box body 1, an opening is provided on one side of the top of the box body 1, a feeding device 2 is provided on one side of the opening, a dust suppression device 3 is provided on the top of the box body 1, the feeding device 2 includes a support frame 21, a support column 22 integrally formed with the support frame 21 is provided at the bottom of the support frame 21, and a support column 22 is fixedly installed on one end of the support frame 21 The support frame 23 has a second motor 24 fixedly mounted on the top thereof, and a rotor portion of the second motor 24 passes through the support frame 21 and is fixedly connected to a driving shaft 25, and a plurality of driven shafts 26 are arranged on one side of the driving shaft 25, and a conveyor belt 27 is sleeved on the surface of the driving shaft 25 and the driven shaft 26, and a plurality of baffles 28 are provided on the surface of the conveyor belt 27, and the baffles 28 can effectively prevent stones on the surface of the conveyor belt 27 from rolling down during transportation, and fillets 4 are provided on the sharp parts of the box body 1, and the fillets 4 can effectively reduce the damage caused by collisions, and can also effectively prevent scratches on users, and a reinforcing rod 5 is arranged under the support frame 23, and one end of the reinforcing rod 5 is fixedly connected to the bottom of the support frame 23, and the other end is fixedly connected to the support column 22, and the reinforcing rod 5 forms a triangle between the support frame 23 and the support column 22, thereby improving the stability of the support frame 23.

[0022] In the specific implementation, it is only necessary to start the first motor 14 and the second motor 24. The rotation of the first motor 14 will drive the rolling roller 15 to rotate, and the rotation of the second motor 24 will drive the driving shaft 25 to rotate, thereby driving the conveyor belt 27 to move. At this time, stones are poured onto the conveyor belt 27, and the conveyor belt 27 will transport the stones to the box body 1 through the baffle 28. The box body 1 is provided with a triangular plate 16. The stones will slide along the triangular plate 16 to the rolling roller 15, and then be crushed by the rolling roller 15 and discharged from the discharge port 17.

[0023] like Figure 2 and Figure 4 The dust removal device 3 shown includes a suction cup 31, which is arranged in the box body 1. The top of the suction cup 31 is fixedly connected to an air inlet pipe 32. The air inlet pipe 32 passes through the box body 1 and is fixedly connected to a dust removal box 33. The dust removal box 33 is provided with a placement plate 34 integrally formed with the dust removal box 33. The surface of the placement plate 34 is provided with a plurality of through holes. Dust bags 35 are arranged in the through holes. The dust removal bag 35 can adopt AKPE and other models. This model is a polyester dust removal bag with a small fiber diameter and a large specific surface area. It can effectively capture tiny particles and dust and provide an efficient filtering effect. One side of the dust removal box 33 is fixedly connected with The negative pressure fan 36 can adopt the model of GE24-12, etc. This model has strong suction force. The air intake port of the negative pressure fan 36 is fixedly connected to the dust removal box 33, and the exhaust hole of the negative pressure fan 36 is fixedly connected to the exhaust pipe 37. The dust removal box 33 is contacted with a box cover 38, and a pair of handles 6 are fixedly installed on the top of the box cover 38. The pair of handles 6 are symmetrically arranged. The handles 6 can facilitate the user to punch holes in the box cover 38, and then facilitate the replacement of the overused dust bag 35. The contact between the box cover 38 and the dust removal box 33 is fixedly installed with a sealing strip, and the sealing adjustment can effectively improve the sealing of the dust removal box 33, thereby improving the dust removal effect.

[0024] In the specific implementation, it is only necessary to start the negative pressure fan 36, which will draw away the gas in the dust removal box 33, and then the suction cup 31 can suck the gas in the box body 1, and then the dust-containing gas in the box body 1 passes through the air inlet pipe 32 and then into the dust removal box 33 and contacts with the dust removal bag 35, so that the dust removal bag 35 absorbs the dust and then reduces the dust. The gas after the dust reduction will be discharged through the exhaust pipe 37. If you want to replace the dust removal bag 35, you only need to hold the handle 6 and lift it up to open the box cover 38, so that the dust removal bag 35 can be replaced conveniently.

Claims

1. A stone crushing device for deep foundation pit excavation, comprising a housing (1), characterized in that: Support legs (12) formed integrally with the box body (1) are provided at the four corners of the bottom of the box body (1); one end of the box body (1) is fixedly connected to a support platform (13); a pair of first motors (14) are fixedly mounted on the top of the support platform (13); the rotor parts of the pair of first motors (14) pass through the box body (1) and enter the box body (1); a rolling roller (15) is fixedly connected thereto; a triangular plate (16) is provided above the rolling roller (15); one end of the triangular plate (16) is fixedly connected to the inner wall of the box body (1); a discharge port (17) is provided at the bottom of the box body (1); an opening is provided at one side of the top of the box body (1); a feeding device (2) is provided at one side of the opening; and a dust suppression device (3) is provided at the top of the box body (1).

2. The stone crushing device for deep foundation pit excavation according to claim 1, characterized in that: The feeding device (2) comprises a support frame (21), the bottom of the support frame (21) is provided with a support column (22) integrally formed with the support frame (21), one end of the support frame (21) is fixedly mounted with a support frame (23), the top of the support frame (23) is fixedly mounted with a second motor (24), a rotor portion of the second motor (24) passes through the support frame (21) and is fixedly connected to a driving shaft (25), one side of the driving shaft (25) is provided with a plurality of driven shafts (26), the surfaces of the driving shaft (25) and the driven shaft (26) are both sleeved with a conveyor belt (27), and the surface of the conveyor belt (27) is provided with a plurality of baffles (28).

3. A stone crushing device for deep foundation pit excavation according to claim 1 or 2, characterized in that: The dust reduction device (3) comprises a suction cup (31), the suction cup (31) being arranged in a box body (1), the top of the suction cup (31) being fixedly connected to an air inlet pipe (32), the air inlet pipe (32) passing through the box body (1) being fixedly connected to a dust removal box (33), a placement plate (34) integrally formed with the dust removal box (33) being arranged in the dust removal box (33), a plurality of through holes being opened on the surface of the placement plate (34), dust removal bags (35) being arranged in each of the through holes, a negative pressure fan (36) being fixedly connected to one side of the dust removal box (33), an air intake port of the negative pressure fan (36) being fixedly connected to the dust removal box (33), an exhaust port of the negative pressure fan (36) being fixedly connected to an exhaust pipe (37), and a box cover (38) being arranged in contact with the dust removal box (33).

4. A stone crushing device for deep foundation pit excavation according to claim 1 or 2, characterized in that: The sharp parts of the box body (1) are all provided with rounded corners (4).

5. The stone crushing device for deep foundation pit excavation according to claim 3, characterized in that: The sharp parts of the box body (1) are all provided with rounded corners (4).

6. A stone crushing device for deep foundation pit excavation according to claim 1, 2 or 5, characterized in that: A reinforcing rod (5) is provided below the support frame (23), one end of the reinforcing rod (5) is fixedly connected to the bottom of the support frame (23), and the other end of the reinforcing rod (5) is fixedly connected to the support column (22).

7. The stone crushing device for deep foundation pit excavation according to claim 3, characterized in that: A reinforcing rod (5) is provided below the support frame (23), one end of the reinforcing rod (5) is fixedly connected to the bottom of the support frame (23), and the other end of the reinforcing rod (5) is fixedly connected to the support column (22).

8. The stone crushing device for deep foundation pit excavation according to claim 4, characterized in that: A reinforcing rod (5) is provided below the support frame (23), one end of the reinforcing rod (5) is fixedly connected to the bottom of the support frame (23), and the other end of the reinforcing rod (5) is fixedly connected to the support column (22).

9. The stone crushing device for deep foundation pit excavation according to claim 3, characterized in that: A pair of handles (6) are fixedly mounted on the top of the box cover (38), and the pair of handles (6) are symmetrically arranged.

10. The stone crushing device for deep foundation pit excavation according to claim 3, characterized in that: A sealing strip is fixedly mounted at the contact point between the box cover (38) and the dust removal box (33).

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