A sander

Abstract

The utility model provides a sanding machine relates to the field of crushing, include: box, top open mouth and bottom open mouth are provided with respectively at the top and bottom of box, feed structure, including feed hopper and water inlet pipe, feed hopper sets up on top open mouth, water inlet pipe sets up on feed hopper is used for to the sandstone in the box for humidification, screen structure, sets up at bottom open mouth department, sanding structure sets up in the box, and sanding structure is broken to the sandstone in the box through rotation, through setting up water inlet pipe at feed hopper, water inlet pipe is used for adding water during feeding and crushing, thereby the dust of feeding time, crushing time is suppressed, simultaneously, the fine sandstone of crushing can flow out the box along with the water flow, in addition, screen structure still detachable set up in the box outside, conveniently change and maintain to screen structure, and the sandstone that jams in the screen hole can be bounced to the box in the screen structure, guarantee screen structure unobstructed, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to crushing equipment, and in particular to a sand making machine. Background Technology

[0002] Sand making machines are a type of crushing equipment, typically used for crushing medium and low hardness (compressive strength less than 100MPa) and non-abrasive sand and gravel. Currently, small sand making machines use hammer crushing, where the sand making structure rotates inside the machine casing to crush the sand and gravel to a preset size.

[0003] Currently, sand making machines often generate a lot of dust during the feeding and crushing process, which can harm the health of construction workers. In addition, the screen of the sand making machine is installed inside the machine casing, which requires opening the machine casing to replace it, making the operation very inconvenient. Utility Model Content

[0004] This utility model provides a sand making machine, the purpose of which is to solve the problems of dust generation and screen replacement difficulties in existing sand making machines.

[0005] To achieve the above objectives, embodiments of this utility model provide a sandblasting machine, comprising:

[0006] The box body has a top opening and a bottom opening at its top and bottom ends, respectively.

[0007] The feeding structure includes a feeding hopper and a water inlet pipe. The feeding hopper is located on the top opening, and the water inlet pipe is located on the feeding hopper for humidifying the sand and gravel entering the box.

[0008] A screen structure is provided at the bottom opening;

[0009] A sand-crushing structure is installed inside the box, and the sand-crushing structure crushes the sand and gravel inside the box by rotating.

[0010] Preferably, the screen structure is detachably disposed outside the housing, and a vibrating screen structure for applying vibration to the screen structure is also disposed below the housing.

[0011] Preferably, the box body includes an upper box body and a lower box body, both of which are semi-cylindrical, with the top opening located on the upper box body and the bottom opening located on the lower box body;

[0012] The sand-blasting structure includes a drive shaft and a sand-blasting hammer. The drive shaft passes through the housing and is coaxial with the axis of the housing. The sand-blasting hammer is arranged around the drive shaft. A drive unit is also provided outside the housing, and the drive unit drives the drive shaft to rotate.

[0013] Preferably, the drive unit is a motor, and the motor is connected to the drive shaft via a reducer.

[0014] Alternatively, the drive unit may be a diesel engine, which is connected to the drive shaft via a belt drive.

[0015] Preferably, a sand baffle is provided at the end of the feed hopper. The sand baffle is rotatably disposed at the top opening and is used to prevent sand and gravel inside the box from flying out of the feed hopper.

[0016] Preferably, a fixed shaft is provided at the top opening, the fixed shaft is perpendicular to the feeding path of the feeding structure, and a sleeve for fitting onto the fixed shaft is provided at the upper end of the sand baffle.

[0017] The shape of the sand baffle is the same as that of the end of the feed hopper and is larger than the end of the feed hopper.

[0018] Preferably, the screen structure includes a screen frame and a screen, the curvature of the screen frame is the same as the curvature of the opening at the bottom of the box, the screen is fixed inside the screen frame, and the screen frame is detachably connected to the box outside the box.

[0019] Preferably, the vibrating screen structure acts on the screen frame or the screen.

[0020] Preferably, the vibrating screen structure includes a vibrating screen shaft, which is disposed below the screen structure. A cam is provided on the vibrating screen shaft, and the vibrating screen shaft drives the cam to rotate so that the protrusion of the cam periodically applies vibration to the screen.

[0021] Preferably, the vibrating screen structure includes a vibrator, which is disposed on the side of the screen frame away from the housing.

[0022] The above-mentioned solution of this utility model has the following beneficial effects:

[0023] In this application, a water inlet pipe is provided at the feed hopper to add water during feeding and crushing, thereby suppressing dust during feeding and crushing, while the crushed fine sand and gravel can flow out of the box with the water flow.

[0024] In addition, the screen structure can be detachably installed outside the box, making it convenient to replace and maintain the screen structure.

[0025] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] Figure 1 This is a first-view perspective view of the present invention;

[0027] Figure 2 This is the second sectional view of the present invention.

[0028] [Explanation of Labels in the Attached Image]

[0029] 11. Upper housing; 12. Lower housing; 13. Sand baffle; 14. Fixed shaft; 15. Edge;

[0030] 20. Feeding structure; 21. Feeding hopper; 22. Water inlet pipe;

[0031] 30. Screen structure; 31. Screen; 32. Screen frame;

[0032] 40. Sandblasting structure; 41. Drive shaft; 42. Sandblasting hammer;

[0033] 50. Vibrating screen structure; 51. Vibrating screen shaft; 52. Cam. Detailed Implementation

[0034] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0035] An embodiment of this utility model provides a sand making machine, such as... Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 The first and second perspective views of the sand crusher are perpendicular to each other. The sand crusher includes a housing for holding crushed sand and gravel. The top of the housing has a top opening, and the bottom of the housing has a bottom opening. A feeding structure 20 is provided at the top of the housing. The feeding structure 20 includes a feeding hopper 21. The end of the feeding hopper 21 is connected to the top opening, so that the sand and gravel enter the housing through the top opening from the feeding hopper 21. A water inlet pipe 22 is also provided on the feeding hopper 21. The water inlet pipe 22 is connected to a water supply device. The water inlet pipe 22 is used to humidify the sand and gravel entering the housing, thereby reducing dust during feeding.

[0036] A screen structure 30 is also provided at the bottom of the box, and the screen structure 30 is located at the bottom opening.

[0037] The box is also equipped with a sand-crushing structure 40, which crushes the sand and gravel inside the box by rotating.

[0038] During feeding, sand and gravel enter the chamber through the feed hopper 21. Simultaneously, water is sprayed onto the sand and gravel through the water inlet pipe 22 to suppress dust. The addition of water significantly increases the moisture content of the sand and gravel, further suppressing dust generated during the crushing process. After being crushed to a preset particle size, the sand and gravel fall through the screen structure 30 with the water flow. Sand and gravel larger than the preset particle size are repeatedly crushed through the sand-beating structure 40 until the crushed particles meet the preset size and fall through the screen structure 30.

[0039] Preferably, the end of the water inlet pipe 22 is sealed, and a number of spray holes are provided along the side wall near the end of the water inlet pipe 22, and the beginning of the water inlet pipe 22 is connected to the water supply device.

[0040] Furthermore, the screen structure 30 is detachably mounted outside the lower housing 12, and a vibrating screen structure 50 is provided below the housing. The vibrating screen structure 50 is used to apply vibration to the screen structure 30, thereby preventing the screen structure 30 from becoming clogged.

[0041] Specifically, the box body includes an upper box body 11 and a lower box body 12. Both the upper box body 11 and the lower box body 12 are semi-cylindrical. One end of the upper box body 11 and the lower box body 12 are hinged, so that the upper box body 11 and the lower box body 12 can be rotated relative to each other and thus opened, which facilitates the replacement of the internal sand-breaking structure 40. The other end is provided with an edge 15, and bolts are provided at the edge 15 to facilitate the upper box body 11 and the lower box body 12, and to prevent the upper box body 11 and the lower box body 12 from opening due to the impact of sand and gravel during crushing.

[0042] The aforementioned top opening is located above the upper housing 11, and the aforementioned bottom opening is located below the lower housing 12.

[0043] The aforementioned sandblasting structure 40 includes a drive shaft 41 and a sandblasting hammer 42. The drive shaft 41 passes through the housing and is capable of rotating relative to the housing. Preferably, a bearing is provided between the drive shaft 41 and the housing. The drive shaft 41 is coaxial with the axis of the housing, that is, the drive shaft 41 is located on the rotation center line of the housing. A drive unit is also provided outside the housing to drive the drive shaft 41 to rotate.

[0044] A sand-beating hammer 42 is also installed on the drive shaft 41. The sand-beating hammer 42 is ringed on the drive shaft 41. Driven by the drive shaft 41, the sand-beating hammer 42 rotates, thereby crushing the sand and gravel in the box.

[0045] In one embodiment of this application, the drive unit is a motor, and the motor and the drive shaft 41 are connected by a reducer.

[0046] In another embodiment of this application, when the drive unit is a diesel engine, a pulley is provided at the output end of the diesel engine, and another pulley is provided on the drive shaft 41. The two pulleys are connected by belt drive.

[0047] In this application, a sand baffle 13 is also provided at the end of the feed hopper 21. The sand baffle 13 is rotatably provided at the top opening and is used to prevent sand and gravel in the box from flying out of the feed hopper 21.

[0048] In this embodiment, a fixed shaft 14 is provided at the top opening. The circumference of the fixed shaft 14 is perpendicular to the feeding path of the feeding structure 20 (more precisely, the feeding hopper 21). A sleeve is provided at the upper end of the sand baffle 13, which is fitted over the fixed shaft 14. The sand baffle 13 can rotate around the fixed shaft 14. When there is no external force, the sand baffle 13 remains in a vertical state.

[0049] The shape of the baffle plate 13 is the same as that of the end of the feed hopper 21, and it is larger than the end of the feed hopper 21. This ensures that the sand and gravel are not blocked when entering the box from the feed hopper 21. During crushing, the baffle plate 13 cannot rotate because of the obstruction of the feed hopper 21, thus preventing the sand and gravel from flying out of the box through the feed hopper 21. Referring to the figures in this application, the baffle plate 13 can rotate counterclockwise during feeding, and cannot rotate clockwise during crushing because it is blocked by the feed hopper 21.

[0050] To facilitate the disassembly of the aforementioned screen structure 30 outside the housing, the screen structure 30 includes a screen frame 32 and a screen 31. The screen 31 is disposed inside the screen frame 32, which facilitates the fixing of the screen 31 to the lower opening. Since the housing is cylindrical in shape, the curvature of the screen frame 32 is the same as the curvature of the lower opening of the housing to ensure that the screen frame 32 fits snugly against the lower end of the housing. The screen 31 is detachably fixed to the housing, such as by screws.

[0051] Understandably, the aperture size of screen 31 is the preset size for discharging sand and gravel. Sand and gravel larger than the aperture size of screen 31 are repeatedly crushed inside the chamber, while sand and gravel smaller than or equal to the aperture size of screen 31 fall off with the water flow through screen 31.

[0052] Furthermore, the aforementioned vibrating screen structure 50 is used on the screen frame 32 or the screen 31 to vibrate the screen structure 30 and prevent the holes of the screen 31 from becoming blocked.

[0053] In one embodiment of this application, the vibrating screen structure 50 includes a vibrating screen shaft 51, which is disposed below the screen structure 30. In this embodiment, the housing is supported by bearing end caps (not shown in the figure), and the vibrating screen shaft 51 is disposed between two bearing end caps. The drive shaft 41 and the vibrating screen shaft 51 are driven by the aforementioned belt. A cam 52 is also provided on the vibrating screen shaft 51. The cam 52 has a protrusion in its circumferential direction. The vibrating screen shaft 51 drives the cam 52 to rotate around the rotation axis of the cam 52, thereby causing the protrusion to periodically impact the screen 31, achieving the purpose of applying vibration to the screen 31.

[0054] Preferably, the screen 31 is provided with a protrusion for the protrusion to impact. Since the screen 31 is made of metal material, it has slight deformation and recovery capabilities. Therefore, after the protrusion impacts the protrusion, it can move due to the deformation of the screen 31, so that the protrusion can rotate continuously and thus periodically impact the protrusion.

[0055] In another embodiment of this application, the vibrating screen structure 50 includes a vibrator disposed on the side of the screen frame 32 away from the housing.

[0056] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A sand-making machine, characterized in that, include: The box body has a top opening and a bottom opening at its top and bottom ends, respectively. The feeding structure (20) includes a feeding hopper (21) and a water inlet pipe (22). The feeding hopper (21) is located on the top opening, and the water inlet pipe (22) is located on the feeding hopper (21) for humidifying the sand and gravel entering the box. A screen structure (30) is provided at the bottom opening; A sand-crushing structure (40) is installed inside the box, and the sand-crushing structure (40) crushes the sand and gravel inside the box by rotating.

2. The sand making machine according to claim 1, characterized in that: The screen structure (30) is detachably disposed outside the box, and a vibrating screen structure (50) for applying vibration to the screen structure (30) is also disposed below the box.

3. The sand making machine according to claim 1, characterized in that: The box body includes an upper box body (11) and a lower box body (12). Both the upper box body (11) and the lower box body (12) are semi-cylindrical. The top opening is located on the upper box body (11), and the bottom opening is located on the lower box body (12). The sand-beating structure (40) includes a drive shaft (41) and a sand-beating hammer (42). The drive shaft (41) passes through the housing and is coaxial with the axis of the housing. The sand-beating hammer (42) is arranged around the drive shaft (41). A drive unit is also provided outside the housing, and the drive unit drives the drive shaft (41) to rotate.

4. The sand making machine according to claim 3, characterized in that: The drive unit is a motor, and the motor is connected to the drive shaft (41) via a reducer. Alternatively, the drive unit is a diesel engine, and the diesel engine is connected to the drive shaft (41) via belt drive.

5. The sand making machine according to claim 1, characterized in that: The end of the feed hopper (21) is also provided with a sand baffle (13), which is rotatably provided at the top opening. The sand baffle (13) is used to prevent sand and gravel in the box from flying out of the feed hopper (21).

6. The sand making machine according to claim 5, characterized in that: A fixed shaft (14) is provided at the top opening. The fixed shaft (14) is perpendicular to the feeding path of the feeding structure (20). A sleeve for sleeved on the fixed shaft (14) is provided at the upper end of the sand baffle (13). The shape of the sand baffle (13) is the same as the shape of the end of the feed hopper (21) and is larger than the end of the feed hopper (21).

7. The sand making machine according to claim 2, characterized in that: The screen structure (30) includes a screen frame (32) and a screen (31). The curvature of the screen frame (32) is the same as the curvature of the opening at the bottom of the box. The screen (31) is fixed inside the screen frame (32). The screen frame (32) is detachably connected to the box outside the box.

8. The sand making machine according to claim 7, characterized in that: The vibrating screen structure (50) acts on the screen frame (32) or screen (31).

9. The sand making machine according to claim 8, characterized in that: The vibrating screen structure (50) includes a vibrating screen shaft (51), which is located below the screen structure (30). A cam (52) is provided on the vibrating screen shaft (51). The vibrating screen shaft (51) drives the cam (52) to rotate so that the protrusion of the cam (52) periodically applies vibration to the screen (31).

10. The sand making machine according to claim 8, characterized in that: The vibrating screen structure (50) includes a vibrator, which is disposed on the side of the screen frame (32) away from the housing.

Images