Gravel impact sand making equipment

Abstract

The utility model discloses gravel impact sand making equipment, relates to the technical field of gravel sand making, and solves the technical problems that large-size gravels are mixed to influence the whole gravels and reduce the quality as the gravels are directly discharged and mixed after being impacted. The input sand and stones collide with the inner wall of the impact sand making tank under the action of the impeller and slide towards the discharge port after being broken, the sand and stones smaller than the aperture of the filter screen are directly discharged, the larger sand and stones impact upwards under the action of the rotating filter screen, collide with the falling sand and stones again, are broken and fall off again, and the sand and stones meeting the standard are automatically discharged. Other gravels continuously collide, the large-size gravels are broken through multiple times of collision, the broken gravels can pass through the filter screen, it is effectively guaranteed that all the falling gravels meet the size requirement, and the overall quality of the gravels is guaranteed; and the filter screen can be fixedly formed through a structure, the filter screen and the interior of the impact sand making tank can be detached, replacement can be conducted according to different gravel size requirements, and the application range of the device is widened.

Description

Technical Field

[0001] The utility model belongs to the field of sand and gravel preparation, relates to a crushed stone sand making technology, and specifically is a crushed stone impact sand making equipment. Background Art

[0002] Due to economic effects, material supply and other considerations, the construction industry currently uses crushed stone to prepare sand. Crushed stone sand making is a modern, environmentally friendly and economical sand production method; preparing sand by crushing stone requires the use of an impact crusher.

[0003] When crushed stone is used to prepare sand through an impact crusher, crushed stone within a certain size range is first put into the feed bin through a conveyor. The crushed stone raw materials enter the impeller or the area corresponding to the impeller. The impeller will drive the crushed stone to collide with the wall of the crusher, and the crushed stone will be further broken by the collision. When a certain amount of crushed stone is randomly accumulated at the upper conveying position, it will fall down from both sides of the impeller. The fallen crushed stone collides with the crushed stone thrown out by the impeller and is further crushed. After the crushing, the crushed stone will fall down and be discharged.

[0004] However, it is difficult to control the size of the gravel after it hits the stone, and when the gravel falls down, there is no power to drive it to impact with other gravel again. Therefore, the gravel will be discharged directly after a certain number of impacts. It is difficult to ensure that it meets the standard size of sand and gravel when it is discharged. As a result, the larger-sized sand and gravel will be directly mixed with the sand and gravel that meet the standard size. After mixing, it is difficult to quickly distinguish the large-sized sand and gravel, which will reduce the overall quality of the sand and gravel.

[0005] Therefore, the utility model provides a crushed stone impact sand making device. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a crushed stone impact sand making device, which solves the problem that the prior art directly discharges and mixes the sand and gravel after impact crushing without screening, and there is sand and gravel that does not meet the standards, which affects the overall quality of the sand and gravel.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a crushed stone impact sand making device is proposed, comprising: an impact sand making tank and a power mechanism rotatably arranged inside the impact sand making tank, wherein a conical material discharge trough and an arc-shaped cavity are provided inside the impact sand making tank, and the power mechanism comprises:

[0008] An impeller, the impeller is rotatably connected to the inside of the impact sand making tank, the impeller is located below the feed chute of the impact sand making tank and inside the arc cavity, a plurality of guide blocks are fixedly connected to the inside of the impeller, the plurality of guide blocks are symmetrically fixed in a triangular shape inside the impeller, and the guide blocks are not in contact with each other;

[0009] A transfer column is arranged at the lower side of the impeller and is rotatably connected to the surface of the impeller through a rotating bearing. A transfer groove is provided inside the transfer column. A transfer tooth is fixedly connected inside the transfer groove. A transfer gear is rotatably connected inside the transfer column. A connecting tooth is fixedly connected to the surface of the impeller. The transfer gear meshes with the connecting tooth and the transfer tooth.

[0010] The filter screen is arranged between the impeller and the arc-shaped cavity. The filter screen is conical in shape and has horizontal smooth blocks at both ends. The internal rotation of the impact sand-making tank is connected with a driving ring. The filter screen is detachably connected to the driving ring and the transfer column.

[0011] Optionally, a fixing ring is slidably connected inside the transfer column and the impact sand making tank, a fixing rod is threadedly connected inside the fixing ring, and one end of the fixing rod is rotatably connected to the surface of the transfer column via a rotating bearing.

[0012] Optionally, a fixing groove is provided on the surface of the filter screen, and a fixing shaft is fixedly connected to the surface of the fixing ring.

[0013] Optionally, a sealing block is rotatably connected inside the impact sand making tank, and the sealing block is fixedly connected to the impact sand making tank by bolts.

[0014] Optionally, the filter screen includes connecting blocks fixedly arranged at both ends thereof, a connecting groove is provided on the surface of the connecting block at one end, and a connecting rod is rotatably connected inside the connecting block at the other end, and the connecting rod will be inserted into the connecting groove when the connecting blocks at both ends are fitted.

[0015] Optionally, an arc groove is provided inside the connecting block, the arc groove penetrates the rear end of the connecting groove, and a connecting column is fixedly connected to the surface of the connecting rod.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] In actual application of the crushed stone impact sand making equipment, the input sand and stone collide with the inner wall of the impact sand making tank under the action of the impeller, and slide to the discharge port after being broken. The sand and stone smaller than the aperture of the filter screen is directly discharged, and the larger sand and stone will impact upward under the action of the rotating filter screen, collide with the sand and stone falling from above again, break and fall again, the sand and stone that meet the standards are discharged autonomously, and the remaining sand and stone continue to collide, and the large-sized sand and stone are broken through multiple collisions, and the broken sand and stone can pass through the filter screen, effectively ensuring that the fallen sand and stone meet the size requirements and the overall quality of the sand and stone; and the filter screen can be fixed and formed by the structure, the filter screen and the inside of the impact sand making tank can be disassembled, and can be replaced according to different sand and stone size requirements, thereby increasing the scope of application of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0019] Figure 2 It is a structural sectional view of the impeller of the utility model;

[0020] Figure 3 This is a structural cross-sectional view of the filter screen of the utility model;

[0021] Figure 4 This is a structural disassembly diagram of the transfer column of the utility model;

[0022] Figure 5 This is a structural disassembly diagram of the connecting rod of the utility model.

[0023] In the figure: 1. Impact sand making tank;

[0024] 21. Impeller; 22. Filter screen; 23. Guide block; 24. Transfer column; 25. Transfer slot; 26. Transfer gear; 27. Transfer gear; 28. Driving ring;

[0025] 31. fixing ring; 32. fixing rod; 33. sealing block; 34. fixing groove; 35. fixing shaft;

[0026] 41. Connecting block; 42. Connecting groove; 43. Connecting rod; 44. Connecting column. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] like Figure 1-5 As shown, a crushed stone impact sand making equipment comprises an impact sand making tank 1 and a power mechanism rotatably arranged inside the impact sand making tank 1, wherein the power mechanism is used to realize the screening and re-impact crushing of large-sized sand and gravel inside the impact sand making tank 1;

[0029] like Figure 2 As shown, the impact sand making tank 1 is provided with a conical feeding chute and an arc-shaped cavity, and the crushed stone raw material falls from the feeding chute into the impact sand making tank 1 for impact crushing;

[0030] The power mechanism includes an impeller 21 and a filter screen 22 which are rotatably arranged inside the impact sand making tank 1;

[0031] It should be noted that the filter screen 22 is located at the lower side of the impeller 21, and the filter screen 22 is conical, and there are meshes on the surface of the filter screen 22 (not shown in the figure). The upper surface of the impeller 21 is provided with an annular notch, and the lower surface is a cylindrical wheel body, and the notch and the feed chute are fixed. After the sand and gravel enter the impeller 21 from the feed chute, they are thrown out under the action of the impeller 21 and collide with the inner wall of the impact sand making tank 1, and then discharged along the arc cavity. The filter screen 22 is arranged between the arc cavity and the impeller 21;

[0032] A guide block 23 is fixedly connected between the upper surface and the lower surface of the impeller 21;

[0033] It should be noted that there are three guide blocks 23, which are evenly arranged inside the impeller 21. The guide blocks 23 do not touch each other, and the extended lines of the three guide blocks 23 intersect to form a triangle. There are obtuse angles at both ends of the guide blocks 23, one of which protrudes toward the center of the impeller 21, and the other protrudes toward the inner wall of the impact sand making tank 1.

[0034] It should be explained that a motor (not shown in the figure) is fixedly arranged inside the impact sand making tank 1. The motor is located at the lower side of the impeller 21 and is fixedly connected to the inside of the impact sand making tank 1 through a round arch bracket (not shown in the figure), that is, after the sand and gravel fall, it will fall in an arch shape along the upper surface of the round arch bracket and will not accumulate on the surface of the round arch bracket; and a coupling is fixedly installed on the output shaft of the motor, and is fixedly connected to the impeller 21 through the coupling; starting the motor can cause the impeller 21 to rotate;

[0035] It should be noted that the guide block 23 is provided with an elastic layer on the surface facing the center of the impeller 21. The elastic layer is the surface in contact with the gravel. The guide block 23 has an arc toward the center of the impeller 21, which can guide the gravel to move to the gap between the guide blocks 23. The elastic layer has a certain elastic force, which can provide a force for the gravel to fly out when the gravel hits.

[0036] like Figure 3 As shown, the surface of the impeller 21 is rotatably connected with a transfer column 24 through a rotating bearing, a transfer groove 25 is provided inside the transfer column 24, a transfer gear 26 is rotatably provided inside the impact sand making pot 1, a connecting tooth is fixedly connected to the bottom of the impeller 21, a transfer tooth 27 is fixedly connected to the inside of the transfer groove 25, and the transfer gear 26 is meshed with the transfer tooth 27 and the connecting tooth;

[0037] It should be noted that the motor is fixedly connected to the inside of the impact sand making tank 1 through a round arch bracket, and the surface of the round arch bracket is rotatably connected to the surface of the transfer gear 26 through a rotating bearing, that is, the transfer gear 26 will rotate continuously at a fixed position;

[0038] It should be noted that the output shaft of the motor passes through the central transfer column 24, and the surface of the output shaft is rotatably connected to the central transfer column 24 via a rotating bearing;

[0039] like Figure 2 As shown, the impact sand making tank 1 is internally rotatably connected with a driving ring 28, and both ends of the filter screen 22 are detachably connected to the transfer column 24 and the driving ring 28;

[0040] It should be noted that the driving ring 28 is located at the position where the sand and gravel fall in the impact sand making tank 1, and the height of the center position thereof is lower than the height of the impeller 21;

[0041] In the actual application process of the crushed stone impact sand making equipment, the input sand and stone collide with the inner wall of the impact sand making tank 1 under the action of the impeller 21, and will slide to the discharge port after being crushed. The sand and stone smaller than the aperture of the filter screen 22 will be directly discharged downward, while the larger sand and stone will impact upward under the action of the filter screen 22, and collide with the crushed stone falling from above or the inner wall of the impact sand making tank 1 again, and then break into smaller sand and stone. The sand and stone that meet the standards are discharged automatically, and the remaining sand and stone continue to collide under the action of centrifugal force. The sand and stone that do not meet the requirements are crushed through multiple collisions, and the sand and stone that meet the requirements pass through the filter screen 22, which can effectively ensure that the fallen sand and stone meet the size requirements and ensure the overall quality of the sand and stone.

[0042] In some specific implementation schemes, the impact sand making tank 1 and the transfer column 24 are internally slidably connected with a fixing ring 31, and the internal thread of the fixing ring 31 is connected with a fixing rod 32;

[0043] It should be noted that the surface of the fixing rod 32 is provided with threads (not shown in the figure);

[0044] One end of the fixing rod 32 is rotatably connected to the interior of the transfer column 24 via a rotating bearing, that is, the rotation of the fixing rod 32 can drive the fixing ring 31 to move to the position below the transfer column 24, and the rotation of the fixing rod 32 at the position of the driving ring 28 can cause the fixing ring 31 to move to the surface of the driving ring 28;

[0045] like Figure 4 As shown, a fixing groove 34 is formed on the surface of the filter 22, and a fixing shaft 35 is fixedly connected to the lower surface of the fixing ring 31; the downward movement of the fixing ring 31 will cause the fixing shaft 35 to be inserted into the fixing groove 34, thereby fixing the positions of the filter 22 and the fixing ring 31;

[0046] It should be noted that the filter screen 22 is cone-shaped as a whole, but has a horizontal mesh structure at the upper and lower ends, and the fixing grooves 34 are arranged on the surfaces at the upper and lower ends at the horizontal position, and a gap is arranged at a certain position of the filter screen 22, and the position of the gap corresponds to the position of the fixing rod 32; and the filter screen 22 is a separate structure relative to the transfer column 24 and the impact sand making tank 1, and can be disassembled independently; when screening sand and gravel of different sizes through the impact sand making tank 1, the filter screen 22 with a suitable mesh number can be installed according to the needs, so that the overall device can screen sand and gravel of multiple sizes;

[0047] like Figure 1 As shown, a sealing block 33 is rotatably connected to the surface of the impact sand making tank 1;

[0048] The sealing block 33 and the impact sand making tank 1 are fixed in position by bolts; the filter screen 22 can be taken in and out from the sealing block 33, making the removal and installation of the filter screen 22 easier;

[0049] like Figure 4 As shown, in a further embodiment, the filter screen 22 includes connection blocks 41 fixedly arranged at both ends of the filter screen 22, a connection groove 42 is provided inside the connection block 41 at one end, and a connection rod 43 is rotatably connected inside the connection block 41 at the other end, and a connection column 44 is fixedly connected to the surface of the connection rod 43;

[0050] like Figure 5 As shown, the connecting groove 42 is cylindrical as a whole, and an arc groove is opened inside the connecting block 41. The rear end of the arc groove is connected with the rear end of the connecting groove 42, and the surface of the connecting column 44 is slidably connected with the inner surface of the connecting groove 42;

[0051] It should be noted that after the surfaces of the corresponding connecting blocks 41 are fitted, the connecting rod 43 will be inserted into the connecting groove 42. At this time, rotating the connecting rod 43 can cause the connecting column 44 to rotate to the arc groove position, so that the connecting rod 43 cannot slide out of the connecting groove 42, so that the positions of the front and rear connecting blocks 41 are fixed, and the filter screen 22 forms a cone shape; that is, the filter screen 22 can be unfolded or formed inside the impact sand making tank 1 according to the requirements of disassembly and installation, and when replacing the internal filter screen 22, it can be unfolded to facilitate the removal of the filter screen 22;

[0052] After the sealing block 33 is rotated to open, the horizontal positions of the two ends of the filter screen 22 are placed between the fixing ring 31 and the transfer column 24 and between the fixing ring 31 and the driving ring 28, and the connecting blocks 41 at the two ends of the filter screen 22 are fitted, and the connecting rod 43 is rotated to make the entire filter screen 22 present a cone shape. At this time, the fixing rod 32 is rotated to move the fixing ring 31 downward to fix the position of the filter screen 22, and the installation of the filter screen 22 is completed;

[0053] The working principle of the utility model is as follows: start the motor and pour sand and gravel into the impact sand making tank 1, the sand and gravel will slide into the impeller 21 automatically, at this time the impeller 21 rotates under the action of the motor, and through the transfer gear 26, the transfer column 24 and the impeller 21 are prompted to rotate in the opposite direction, that is, at this time the filter screen 22 and the impeller 21 rotate in opposite directions, the sand and gravel impact the inner wall of the impact sand making tank 1 under the action of the guide block 23, after the impact, it will be broken into small pieces and slide to the surface of the filter screen 22, and the sand and gravel that meet the size standards will be discharged downward, and the sand and gravel that are not discharged will move upward under the action of centrifugal force and collide and break with the sand and gravel again, and can be discharged when they are broken to meet the standards.

[0054] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A crushed stone impact sand making equipment, characterized in that: include: An impact sand making tank (1) and a power mechanism rotatably arranged inside the impact sand making tank (1), wherein a conical material discharge trough and an arc-shaped cavity are provided inside the impact sand making tank (1), and the arc-shaped cavity is located below the material discharge trough, and the power mechanism comprises: An impeller (21), the impeller (21) being rotatably connected to the inside of the impact sand making pot (1), the impeller (21) being located inside the arc-shaped cavity of the impact sand making pot (1), the impeller (21) being fixedly connected to a plurality of guide blocks (23), the plurality of guide blocks (23) being fixedly fixed inside the impeller (21) in a triangular shape and symmetrically, and gaps being present between the guide blocks (23); A transfer column (24) is arranged at the lower side of the impeller (21) and is rotatably connected to the surface of the impeller (21) via a rotary bearing. A transfer groove (25) is provided inside the transfer column (24). A transfer tooth (27) is fixedly connected inside the transfer groove (25). A transfer gear (26) is rotatably connected inside the transfer column (24). A connecting tooth is fixedly connected to the surface of the impeller (21). The transfer gear (26) meshes with the connecting tooth and the transfer tooth (27). The filter screen (22) is arranged between the impeller (21) and the arc-shaped cavity. The filter screen (22) is conical and has horizontal smooth blocks at both ends. The impact sand making tank (1) is internally rotatably connected to a driving ring (28). The filter screen (22) is detachably connected to the driving ring (28) and the transfer column (24).

2. The crushed stone impact sand making equipment according to claim 1, characterized in that: The transfer column (24) and the impact sand making pot (1) are internally slidably connected with a fixing ring (31), the internal thread of the fixing ring (31) is connected with a fixing rod (32), and one end of the fixing rod (32) is rotatably connected to the surface of the transfer column (24) via a rotating bearing.

3. The crushed stone impact sand making equipment according to claim 2, characterized in that: A fixing groove (34) is provided on the surface of the filter screen (22), and a fixing shaft (35) is fixedly connected to the surface of the fixing ring (31).

4. The crushed stone impact sand making equipment according to claim 1, characterized in that: A sealing block (33) is rotatably connected inside the impact sand making tank (1), and the sealing block (33) is fixedly connected to the impact sand making tank (1) via bolts.

5. The crushed stone impact sand making equipment according to claim 1, characterized in that: The filter screen (22) comprises connection blocks (41) fixedly arranged at two ends thereof, a connection groove (42) is provided on the surface of the connection block (41) at one end, and a connection rod (43) is rotatably connected inside the connection block (41) at the other end, and the connection rod (43) is inserted into the connection groove (42) when the connection blocks (41) at the two ends are fitted together.

6. The crushed stone impact sand making equipment according to claim 5, characterized in that: An arc-shaped groove is provided inside the connection block (41), and the arc-shaped groove penetrates the rear end of the connection groove (42). A connection column (44) is fixedly connected to the surface of the connection rod (43).

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