Building solid waste recycled aggregate preparation device

Abstract

The utility model discloses a kind of building solid waste recycled aggregate preparation devices, it is related to building material processing technical field.The utility model includes preparation box, preparation box inside is equipped with jaw crusher, two the side of mutually approaching of support leg is equipped with sieve box, further includes: collision part, the collision part is installed in the rear of sieve box, the collision part is used to prevent aggregate to block the screen hole of sieve box.The utility model is by being provided with collision part, specifically is to start motor three drive rotating disc rotation, eccentric shaft follows rotation, swing rod bottom and fixed shaft rotation connection, and eccentric shaft and swing rod internal annular sliding slot sliding connection, so swing rod is with fixed shaft as the axle swing, when eccentric shaft has not rotated to the most front, the collision block on swing rod has hit sieve box, when eccentric shaft continues to rotate to the most front, limit boss moves forward, spring is extruded, make eccentric shaft complete circumferential rotation smoothly, aggregate is effectively prevented by collision block continuous impact and blocks screen hole.

Description

Technical Field

[0001] This utility model belongs to the field of building materials processing technology, and in particular relates to a device for preparing recycled aggregates from building solid waste. Background Technology

[0002] With the acceleration of urbanization, the amount of solid waste such as concrete blocks from building demolition is increasing year by year. Traditional landfill and stockpiling methods occupy a large amount of land resources. Processing construction solid waste into recycled aggregates to replace natural sand and gravel can alleviate the shortage of sand and gravel resources.

[0003] According to the authorized patent CN221816209U, a concrete recycled aggregate preparation device is described. The output shaft of a small motor drives a small eccentric shaft to rotate. The axis of the lower end of the small eccentric shaft does not coincide with the axis of the upper end. The lower end of the shaft will move longitudinally and laterally. As a result, the lower end of the small eccentric shaft slides against the long sliding hole on the upper surface of the screening hopper, causing longitudinal relative sliding. At the same time, it drives the screening hopper to sway laterally along the sliding column. Small-diameter concrete particles will pass through the screen holes and fall onto the guide seat and roll backward. Large concrete particles will roll forward along the screening hopper. However, there are still the following shortcomings, such as: after long-term screening, the aggregate is easy to clog the screen holes, which will reduce the screening efficiency. At this time, the staff needs to shut down the machine and clean it. Therefore, we propose a construction solid waste recycled aggregate preparation device. Utility Model Content

[0004] The purpose of this invention is to provide a device for preparing recycled aggregate from construction solid waste. Specifically, by setting up a collision part, a starting motor drives a rotating disk to rotate, and an eccentric shaft follows suit. The bottom of a swing rod is rotatably connected to a fixed shaft, and the eccentric shaft is slidably connected to an internal annular groove of the swing rod. Therefore, the swing rod swings back and forth around the fixed shaft. When the eccentric shaft has not rotated to its forwardmost position, the collision block on the swing rod has already struck the screen box. When the eccentric shaft continues to rotate to its forwardmost position, the limiting protrusion moves forward, and the spring is compressed, allowing the eccentric shaft to smoothly complete its circumferential rotation. The continuous impact of the collision block effectively prevents the aggregate from clogging the screen holes, solving the problem that existing preparation devices lack anti-clogging devices during screening, leading to easy clogging of the screen holes by aggregate, thus requiring manual cleaning by workers.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a device for preparing recycled aggregate from construction solid waste, comprising a preparation box, two support legs installed at the bottom of the preparation box, a jaw crusher installed inside the preparation box, and a screen box installed on the side of the two support legs that are close to each other. It also includes:

[0007] A collision section, installed at the rear of the screen box, is used to prevent aggregate from clogging the screen holes of the screen box; and

[0008] A deceleration unit is installed above the screen box and is used to decelerate the aggregate falling onto the screen box.

[0009] A collection box is installed below the screen box, which is used to collect the aggregate falling from the screen holes of the screen box.

[0010] Furthermore, the collision part includes a swing rod, and a collision block is mounted on the top of the swing rod;

[0011] A rotating assembly, mounted at the rear of the screen box, is used to drive the collision part; and

[0012] A collision assembly, which is mounted on the top of the swing arm, is used to impact the screen box;

[0013] Among them, the swing rod can drive the collision block to intermittently impact the screen box, and the impact can further improve the screening efficiency.

[0014] Furthermore, the deceleration unit includes a deceleration plate, which is installed above the screen box and is used to increase the residence time of the aggregate on the screen box;

[0015] The speed reducer can be installed at any position on the screen box, adapting to different installation requirements.

[0016] Furthermore, a mounting plate is fixedly connected to the front of the preparation box, and a second motor is fixedly connected to the top of the mounting plate by bolts. A rotating crank is fixedly connected to the bottom output end of the second motor by a coupling. Two fixed columns are fixedly connected to the bottom of the preparation box, and an annular groove is provided on the top of the sieve box.

[0017] The screen box is slidably limited by two fixed columns, and the rotating crank is slidably limited by an annular groove. The rotating crank can push the screen box to move left and right on the two fixed columns.

[0018] Furthermore, the rotating assembly includes a mounting frame, the left and right sides of which are fixedly connected to the left and right sides of the inner wall of the preparation box, respectively. A motor is fixedly connected to the left side of the bottom of the mounting frame by bolts. A rotating disk is fixedly connected to the right output end of the motor by a coupling. An eccentric shaft is fixedly connected to the right side of the rotating disk. A fixed shaft is fixedly connected to the right side of the bottom of the mounting frame. The swing rod is rotatably connected to the fixed shaft.

[0019] Anti-detachment blocks are installed on the right side of both the fixed shaft and the eccentric shaft. These anti-detachment blocks on the fixed shaft and the eccentric shaft can prevent the swing arm from falling off.

[0020] Furthermore, the collision assembly includes two limiting protrusions, the two limiting protrusions being fixedly connected to the left and right sides of the swing arm respectively on their sides, and two collision grooves are formed inside the collision block, with a second spring fixedly connected inside the collision groove, and the other end of the second spring being fixedly connected to the front of the limiting protrusion.

[0021] The swing rod is slidably limited to the collision block by two limiting protrusions, and two springs are used to reset the collision block.

[0022] Furthermore, the speed reducer is rotatably connected to a mounting column and an adjusting column, and the speed reducer has an adjusting groove inside. The bottom of the mounting column and the adjusting column are threaded with knobs, and the bottom of the mounting column and the adjusting column are inserted into the screen holes on the screen box.

[0023] The adjusting column has two adjusting blocks fixedly connected to its outer surface. The adjusting column slides and is limited by the two adjusting blocks. Both the mounting column and the adjusting column are equipped with anti-detachment rings at their tops to prevent them from falling off.

[0024] This utility model has the following beneficial effects:

[0025] 1. This utility model incorporates a collision part. Specifically, the starting motor drives the rotating disk to rotate, and the eccentric shaft follows the rotation. The bottom of the swing rod is rotatably connected to the fixed shaft, and the eccentric shaft is slidably connected to the annular groove inside the swing rod. Therefore, the swing rod swings back and forth around the fixed shaft. When the eccentric shaft has not rotated to the frontmost position, the collision block on the swing rod has already struck the screen box. When the eccentric shaft continues to rotate to the frontmost position, the limiting protrusion moves forward, and the spring is squeezed, allowing the eccentric shaft to smoothly complete the circumferential rotation. The continuous impact of the collision block can effectively prevent the aggregate from clogging the screen holes.

[0026] 2. This utility model features a speed reduction mechanism. Specifically, the knobs at the bottom of the mounting column and the adjusting column are unscrewed clockwise. The bottom of the mounting column is then inserted into the screen hole of the screen box. The speed reduction plate is rotated to a suitable angle, and the adjusting column is adjusted so that its bottom is inserted into the screen hole. After completion, the knobs are screwed on counterclockwise to fix the mechanism. This method allows for arbitrary adjustment of the position and angle of the speed reduction plate on the screen box to adapt to different screening requirements.

[0027] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the collection box structure of this utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of the jaw crusher of this utility model;

[0032] Figure 4 This is a schematic diagram of the sieve box structure of this utility model;

[0033] Figure 5 This utility model Figure 4 A magnified structural diagram of A in the middle;

[0034] Figure 6 This is a schematic diagram of the overall structure of the collision part of this utility model;

[0035] Figure 7 This utility model Figure 6 A magnified structural diagram of B in the diagram;

[0036] Figure 8 This is a schematic diagram of the overall structure of the deceleration unit of this utility model.

[0037] The attached diagram lists the components represented by each number as follows:

[0038] 1. Preparation box; 11. Support leg; 12. Jaw crusher; 13. Screen box; 14. Collection box; 151. Motor II; 152. Mounting plate; 153. Fixed column; 154. Rotating crank; 155. Annular groove; 2. Collision part; 21. Rotating assembly; 211. Mounting frame; 212. Motor III; 213. Fixed shaft; 214. Rotating disk; 215. Eccentric shaft; 216. Swing rod; 22. Collision assembly; 221. Collision block; 222. Limiting protrusion; 223. Collision groove; 224. Spring II; 3. Deceleration part; 31. Deceleration plate; 32. Adjustment groove; 33. Mounting column; 34. Adjustment column; 341. Adjustment block; 35. Knob. Detailed Implementation

[0039] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0040] Please see Figures 1-8As shown, this utility model is a device for preparing recycled aggregate from construction solid waste, including a preparation box 1, with two support legs 11 installed at the bottom of the preparation box 1, a jaw crusher 12 installed inside the preparation box 1, and a screen box 13 installed on the side of the two support legs 11 that are close to each other. It also includes: a collision part 2, which is installed behind the screen box 13 and is used to prevent aggregate from clogging the screen holes of the screen box 13; and a deceleration part 3, which is installed above the screen box 13 and is used to decelerate the aggregate falling on the screen box 13; wherein, a collection box 14 is installed below the screen box 13 and is used to collect the aggregate falling from the screen holes of the screen box 13. The collision section 2 includes a swing rod 216 with a collision block 221 mounted on its top; a rotating assembly 21 mounted behind the screen box 13, which drives the collision section 2; and a collision assembly 22 mounted on top of the swing rod 216, which impacts the screen box 13. The swing rod 216 can drive the collision block 221 to intermittently impact the screen box 13, thereby further improving screening efficiency. The deceleration section 3 includes a deceleration plate 31 mounted above the screen box 13, which increases the residence time of aggregate on the screen box 13. The deceleration plate 31 can be installed at any position on the screen box 13 to adapt to different installation requirements. A mounting plate 152 is fixedly connected to the front of the preparation box 1. A motor 151 is fixedly connected to the top of the mounting plate 152 by bolts. A rotating crank 154 is fixedly connected to the bottom output end of the motor 151 by a coupling. Two fixed columns 153 are fixedly connected to the bottom of the preparation box 1. An annular groove 155 is opened on the top of the sieve box 13. The sieve box 13 is slidably limited to the two fixed columns 153, and the rotating crank 154 is slidably limited to the annular groove 155. The rotating crank 154 can push the sieve box 13 to move left and right on the two fixed columns 153. The rotating assembly 21 includes a mounting frame 211. The left and right sides of the mounting frame 211 are fixedly connected to the left and right sides of the inner wall of the preparation box 1, respectively. A motor 212 is fixedly connected to the left side of the bottom of the mounting frame 211 by bolts. A rotating disk 214 is fixedly connected to the right output end of the motor 212 by a coupling. An eccentric shaft 215 is fixedly connected to the right side of the rotating disk 214. A fixed shaft 213 is fixedly connected to the right side of the bottom of the mounting frame 211. The swing rod 216 is rotatably connected to the fixed shaft 213. Anti-detachment blocks are installed on the right sides of both the fixed shaft 213 and the eccentric shaft 215. The anti-detachment blocks on the fixed shaft 213 and the eccentric shaft 215 can prevent the swing rod 216 from falling off.The collision assembly 22 includes two limiting protrusions 222. The sides of the two limiting protrusions 222 that are close to each other are fixedly connected to the left and right sides of the swing rod 216, respectively. The collision block 221 has two collision grooves 223 inside. A second spring 224 is fixedly connected inside the collision groove 223. The other end of the second spring 224 is fixedly connected to the front of the limiting protrusion 222. The starter motor 212 drives the rotating disk 214 to rotate, and the eccentric shaft 215 rotates accordingly. The bottom of the swing rod 216 is rotatably connected to the fixed shaft 213, and the eccentric shaft 215 is slidably connected to the annular groove inside the swing rod 216. Therefore, the swing rod 216 swings back and forth around the fixed shaft 213. When the eccentric shaft 215 has not rotated to the front, the collision block 221 on the swing rod 216 has already struck the screen box 13. When the eccentric shaft 215 continues to rotate to the front, the limiting protrusion 222 moves forward, and the second spring 224 is squeezed, so that the eccentric shaft 215 can smoothly complete the circumferential rotation. The continuous impact of the collision block 221 can effectively prevent the aggregate from blocking the screen hole. Among them, the swing rod 216 is slidably limited by the two limiting protrusions 222 and the collision block 221, and the two springs 224 are used to reset the collision block 221. The speed reducer 31 has a rotating connection between a mounting column 33 and an adjusting column 34. An adjusting groove 32 is provided inside the speed reducer 31. A knob 35 is threaded to the bottom of both the mounting column 33 and the adjusting column 34. The bottoms of both the mounting column 33 and the adjusting column 34 are inserted into the screen holes on the screen box 13. By unscrewing the knobs 35 at the bottom of the mounting column 33 and the adjusting column 34 clockwise, the bottom of the mounting column 33 is inserted into the screen hole of the screen box 13. The speed reducer 31 is rotated to a suitable angle, and the adjusting column 34 is adjusted so that its bottom is inserted into the screen hole. After completion, the knobs 35 are screwed on counterclockwise to fix it. This method allows for arbitrary adjustment of the position and angle of the speed reducer 31 on the screen box 13 to adapt to different screening requirements. Two adjusting blocks 341 are fixedly connected to the outer surface of the adjusting column 34. The adjusting column 34 slides and is limited by the two adjusting blocks 341 with the adjusting groove 32. Anti-detachment rings are installed on the tops of both the mounting column 33 and the adjusting column 34 to prevent them from falling off.

[0041] A specific application of this embodiment is as follows: When in use, the jaw crusher 12 is started, and then construction solid waste is poured into the jaw crusher 12. The jaw crusher 12 crushes the concrete, and the crushed aggregate falls into the screen box 13. At the same time, the motor 151 is started to drive the rotating crank 154 at the bottom to rotate. Since the screen box 13 is slidably connected to the two fixed columns 153, and the rotating crank 154 is slidably connected to the annular groove 155 inside the screen box 13, and the motor 151 is mounted on the mounting plate 152, when the rotating crank 154 rotates in a circle, it will push the screen box 13 to move left or right on the two fixed columns 153 to screen the aggregate falling on the screen box 13. The aggregate that meets the specifications will roll down the slope on the screen box 13, and the aggregate that does not meet the specifications will fall into the collection box 14 below through the screen holes on the screen box 13.

[0042] Simultaneously with screening, motor 212 starts, driving the rotating disk 214 to rotate. The eccentric shaft 215 rotates along with it. Since the bottom of the swing rod 216 is rotatably connected to the fixed shaft 213, and the eccentric shaft 215 is slidably connected to the annular groove inside the swing rod 216, when the rotating disk 214 drives the eccentric shaft 215 to rotate circumferentially, the swing rod 216 will swing forward or backward about the fixed shaft 213 as the axis. When the eccentric shaft 215 has not rotated to the frontmost position, the collision block 221 on the swing rod 216 has already struck the screen box 13. The eccentric shaft 215 continues to rotate to the frontmost position. When the limit protrusion 222 moves forward, the second spring 224 is squeezed. When the collision block 221 loses contact with the screen box 13, the two second springs 224 will push the collision block 221 to complete the reset through their own elastic force. The limit protrusions 222 on both sides of the top of the swing rod 216 slide and limit the collision groove 223 to prevent the collision block 221 from falling off. Through the setting of the limit protrusion 222 and the collision groove 223, the eccentric shaft 215 can smoothly complete the circumferential rotation, and through the continuous impact of the collision block 221, it can effectively prevent the aggregate from blocking the screen hole.

[0043] During screening, the aggregate falling onto the screen box 13 is blocked by several speed reducers 31, slowing down the aggregate's rolling speed and increasing the time it stays on the screen box 13, thus improving the overall screening effect. To adapt to different environments, when the position of the speed reducers 31 needs to be adjusted, the knobs 35 at the bottom of the mounting column 33 and adjusting column 34 are unscrewed clockwise. Then, the bottom of the mounting column 33 is inserted into the screen hole on the screen box 13. The speed reducer 31 is then rotated to a suitable angle, and the adjusting column 34 is adjusted so that its bottom can be inserted into the screen hole. After insertion, the two knobs 35 are screwed on counterclockwise. The diameter of the knobs 35 is larger than the diameter of the screen hole, thus ensuring that the speed reducer 31 is securely installed above the screen box 13. Simultaneously, the two adjusting blocks 341 on the outer surface of the adjusting column 34 slide and limit the movement with the adjusting groove 32, allowing the adjusting column 34 to move smoothly inside the speed reducer 31. This method allows for arbitrary adjustment of the position and angle of the speed reducer 31 on the screen box 13, adapting to different screening needs.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for preparing recycled aggregate from construction solid waste, comprising a preparation box (1), wherein two support legs (11) are installed at the bottom of the preparation box (1), a jaw crusher (12) is installed inside the preparation box (1), and a screen box (13) is installed on the side of the two support legs (11) that are close to each other, characterized in that, Also includes: Collision part (2), said collision part (2) is installed at the rear of the screen box (13), said collision part (2) is used to prevent aggregate from clogging the screen holes of the screen box (13); and The deceleration unit (3) is installed above the screen box (13) and is used to decelerate the aggregate falling on the screen box (13). A collection box (14) is installed below the sieve box (13), which is used to collect the aggregate falling from the sieve holes of the sieve box (13).

2. The apparatus for preparing recycled aggregate from construction solid waste according to claim 1, characterized in that, The collision part (2) includes a swing rod (216), and a collision block (221) is mounted on the top of the swing rod (216). A rotating assembly (21), which is mounted at the rear of the screen box (13), is used to drive the collision part (2); and Collision assembly (22), which is mounted on the top of the swing arm (216), is used to impact the screen box (13). Among them, the swing rod (216) can drive the collision block (221) to intermittently impact the screen box (13), and the screening efficiency can be further improved through the impact.

3. The apparatus for preparing recycled aggregate from construction solid waste according to claim 2, characterized in that, The deceleration unit (3) includes a deceleration plate (31), which is installed above the screen box (13). The deceleration plate (31) is used to increase the residence time of aggregate on the screen box (13). Among them, the speed reduction plate (31) can be installed at any position on the screen box (13) to adapt to different installation requirements.

4. The apparatus for preparing recycled aggregate from construction solid waste according to claim 3, characterized in that, The preparation box (1) is fixedly connected to the front of the mounting plate (152), and the top of the mounting plate (152) is fixedly connected to the motor (151) by bolts. The bottom output end of the motor (151) is fixedly connected to the rotating crank (154) by a coupling. The bottom of the preparation box (1) is fixedly connected to two fixed columns (153), and the top of the sieve box (13) is provided with an annular groove (155). The screen box (13) is slidably limited to two fixed columns (153), and the rotating crank (154) is slidably limited to an annular groove (155). The rotating crank (154) can push the screen box (13) to move left and right on the two fixed columns (153).

5. The apparatus for preparing recycled aggregate from construction solid waste according to claim 4, characterized in that, The rotating assembly (21) includes a mounting bracket (211). The left and right sides of the mounting bracket (211) are fixedly connected to the left and right sides of the inner wall of the preparation box (1), respectively. A motor (212) is fixedly connected to the left side of the bottom of the mounting bracket (211) by bolts. A rotating disk (214) is fixedly connected to the right output end of the motor (212) by a coupling. An eccentric shaft (215) is fixedly connected to the right side of the rotating disk (214). A fixed shaft (213) is fixedly connected to the right side of the bottom of the mounting bracket (211). The swing rod (216) is rotatably connected to the fixed shaft (213). Anti-detachment blocks are installed on the right side of both the fixed shaft (213) and the eccentric shaft (215). The anti-detachment blocks on the fixed shaft (213) and the eccentric shaft (215) can prevent the swing rod (216) from falling off.

6. The apparatus for preparing recycled aggregate from construction solid waste according to claim 5, characterized in that, The collision assembly (22) includes two limiting protrusions (222). The two limiting protrusions (222) are fixedly connected to the left and right sides of the swing rod (216) respectively on the side that is close to each other. The collision block (221) has two collision grooves (223) inside. A second spring (224) is fixedly connected inside the collision groove (223). The other end of the second spring (224) is fixedly connected to the front of the limiting protrusion (222). Among them, the swing rod (216) is slidably limited to the collision block (221) through two limiting protrusions (222), and two springs (224) are used to reset the collision block (221).

7. The apparatus for preparing recycled aggregate from construction solid waste according to claim 6, characterized in that, The speed reduction plate (31) is rotatably connected to a mounting column (33) and an adjusting column (34). An adjusting groove (32) is provided inside the speed reduction plate (31). A knob (35) is threaded to the bottom of both the mounting column (33) and the adjusting column (34). The bottom of both the mounting column (33) and the adjusting column (34) is inserted into the screen hole on the screen box (13). Two adjusting blocks (341) are fixedly connected to the outer surface of the adjusting column (34). The adjusting column (34) slides and limits the adjusting groove (32) through the two adjusting blocks (341). Anti-detachment rings are installed on the top of the mounting column (33) and the adjusting column (34). The anti-detachment rings are used to prevent the mounting column (33) and the adjusting column (34) from falling off.

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