Construction waste recycling device for construction

Abstract

The application is suitable for the technical field of construction waste recycling equipment, and provides a construction waste recycling device for construction; the device comprises: a main body, an inlet hopper is installed at the top opening position of the main body; a first discharge port is arranged at the bottom of the main body, and a second discharge port is arranged on the side wall of the main body; a crushing roller assembly is arranged in the main body, the crushing roller assembly comprises a first crushing roller and a second crushing roller, the first crushing roller is fixedly sleeved on a second rotating shaft, the second rotating shaft passes through the side walls on both sides of the main body and is rotatably installed on the adjacent side walls of the main body at both ends, the second crushing roller is fixedly sleeved on a first rotating shaft, the first rotating shaft passes through the side walls on both sides of the main body and is rotatably installed on the adjacent side walls of the main body at both ends, and a synchronous assembly is arranged between the first crushing roller and the second crushing roller; and a transmission mechanism is arranged between a driving shaft and a sliding rod, and the transmission mechanism is arranged to drive the sliding rod to drive the screen mesh to reciprocatingly slide left and right.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building waste recycling equipment, and particularly relates to a building waste recycling device for building construction. BACKGROUND

[0002] Building construction refers to production activities in the implementation phase of engineering construction, is the construction process of various buildings, and can also be regarded as the process of changing various lines on design drawings into real objects at specified sites. The building construction includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction and the like.

[0003] Various wastes are generated in the building construction process, and the wastes need to be crushed during the recycling process. After the crushing, the wastes need to be screened and classified. However, the existing screening device is fixedly installed below the crushing device, so that the screening effect is poor. In order to solve the technical problem, the building waste recycling device for building construction is provided. SUMMARY

[0004] The application aims to provide a building waste recycling device for building construction to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0006] A building waste recycling device for building construction comprises a main body, an inlet hopper is installed at the top opening position of the main body, a first discharge port is arranged at the bottom of the main body, and a second discharge port is arranged on the side wall of the main body.

[0007] A crushing roller assembly is arranged in the main body, the crushing roller assembly comprises a first crushing roller and a second crushing roller, the first crushing roller is fixedly sleeved on a second rotating shaft, the second rotating shaft penetrates through the side walls on both sides of the main body, and both ends of the second rotating shaft are rotatably installed on the adjacent side walls of the main body, the second crushing roller is fixedly sleeved on a first rotating shaft, the first rotating shaft penetrates through the side walls on both sides of the main body, and both ends of the first rotating shaft are rotatably installed on the adjacent side walls of the main body, and a synchronous assembly is arranged between the first crushing roller and the second crushing roller.

[0008] A power mechanism is arranged to drive the crushing roller assembly to rotate, the power mechanism comprises a supporting seat and a driving motor installed on the supporting seat, an output end of the driving motor is connected with a driving shaft, and the driving shaft is rotatably arranged in the second rotating shaft; the driving shaft is in transmission connection with the second rotating shaft, the driving shaft extends along the length direction of the second rotating shaft, and penetrates through both ends of the second rotating shaft.

[0009] The screening assembly arranged in the interior of the main body comprises a screen, which is arranged obliquely and below the crushing roller assembly; the screen is connected with slide rods on both sides, which are horizontally and elastically slidably installed on the main body;

[0010] The transmission mechanism is arranged between the drive shaft and the slide rods, and is used to drive the slide rods to reciprocally slide the screen left and right.

[0011] When the present scheme is used, the construction waste to be crushed is fed into the interior of the main body through the feeding hopper, and the driving motor drives the drive shaft to rotate, and the second crushing roller also rotates under the cooperation of the synchronous assembly; thus, the waste is crushed by extrusion through the cooperation of the two first crushing rollers and the second crushing roller, and the crushed waste is screened through the screen; in the screening process, the transmission mechanism drives the screen to reciprocally slide left and right under the drive of the drive shaft, so as to improve the screening effect, and the reciprocating frequency of the screen left and right can be coordinated with the rotating speed of the first crushing roller and the second crushing roller, so as to well adapt to the situation and ensure the stability of the equipment operation.

[0012] As a further scheme of the present application, the slide rods are arranged outside the main body, and are horizontally slidably installed on the adjacent mounting seats on both sides, the mounting seats are fixedly installed on the side wall of the main body, the fourth elastic members are sleeved outside the slide rods, and the two ends of the fourth elastic members are fixedly installed on the slide rods and the adjacent mounting seats.

[0013] As a further scheme of the present application, the slide rods are connected with the side wall of the screen through the connecting rods, and the connecting rods pass through the through holes in the side wall of the main body.

[0014] As a further scheme of the present application, the transmission mechanism comprises two discs, which are arranged on both sides of the main body, and the two discs are sleeved on the drive shaft; a plurality of U-shaped blocks are circumferentially arranged on the side wall of the disc, a cylinder is arranged in the U-shaped block, a mounting disc is further arranged on the corresponding side of the disc, the mounting disc is rotatably installed on the side wall of the main body, a matching rod and an incomplete gear are installed on both sides of the mounting disc, the upper end of the matching rod is used for inserting into the adjacent U-shaped block, and the side of the matching rod abuts against the cylinder; and the incomplete gear is engaged with the gear rack fixedly installed on the slide rod.

[0015] As a further scheme of the present application, the two ends of the cylinder are elastically and slidably arranged in the strip-shaped sliding grooves in the inner side wall of the U-shaped block, the distance between the first end of the sliding groove and the center of the disc is less than the distance between the second end of the sliding groove and the center of the disc, the side of the matching rod abutting against the adjacent cylinder faces the first end of the sliding groove.

[0016] As a further scheme of the present application: the two ends of the cylinder are rotatably sleeved with mounting plates, each of the mounting plates is slidably arranged in an adjacent sliding groove, a third elastic member is further connected to the mounting plate, the third elastic member is arranged along the length direction of the sliding groove, and one end of the third elastic member away from the mounting plate is fixedly installed on the top end side wall of the sliding groove.

[0017] As a further scheme of the present application: the disc is rotatably sleeved on the driving shaft.

[0018] As a further scheme of the present application: the outer side of the driving shaft is sleeved with a first elastic member, and the two ends of the first elastic member are fixedly installed on the driving shaft and the disc respectively.

[0019] As a further scheme of the present application: the outer side of the driving shaft is further sleeved with a second elastic member, and the two ends of the second elastic member are fixedly installed on the driving shaft and the transmission disc respectively.

[0020] As a further scheme of the present application: the driving motor is fixedly installed on the support base.

[0021] Compared with the prior art, the present application has the beneficial effects that: after the crushing is completed, the garbage is screened through the screen, and in the screening process, the transmission mechanism drives the screen to reciprocate left and right under the driving of the driving shaft, so as to improve the screening effect, and the reciprocating frequency of the screen left and right can be coordinated with the rotating speed of the first crushing roller and the second crushing roller, so as to well adapt and ensure the stability of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 A three-dimensional structure diagram of a building garbage recycling device for building construction Figure 1 .

[0023] Figure 2 A three-dimensional structure diagram of a building garbage recycling device for building construction Figure 2 .

[0024] Figure 3 A three-dimensional structure diagram of a building garbage recycling device for building construction Figure 3 .

[0025] Figure 4 A front view of a building garbage recycling device for building construction.

[0026] Figure 5 A three-dimensional structure diagram of a building garbage recycling device for building construction Figure 1 .

[0027] Figure 6An internal structure diagram of a construction waste recycling device for construction Figure 2 .

[0028] Figure 7 An enlarged view of A in the construction waste recycling device for construction Figure 6

[0029] Figure 8 A structure diagram of a U-shaped block in the construction waste recycling device for construction

[0030] In the figure: 10 - main body

[0031] 101 - feeding hopper, 102 - first discharging port, 103 - second discharging port

[0032] Crushing roller assembly

[0033] 201 - first crushing roller, 202 - second crushing roller, 203 - first rotating shaft, 204 - second rotating shaft

[0034] 30 - power mechanism

[0035] 301 - driving motor, 302 - second synchronization tooth, 303 - first synchronization tooth, 304 - driving shaft, 305 - transmission protrusion, 306 - transmission disc, 307 - driving bent rod, 308 - matching groove, 309 - transmission rod, 310 - first elastic member, 311 - second elastic member, 312 - support seat

[0036] 40 - transmission mechanism

[0037] 401 - disc, 402 - U-shaped block, 403 - cylinder, 404 - matching rod, 405 - incomplete gear, 406 - rack, 407 - mounting disc, 408 - sliding groove, 409 - third elastic member

[0038] 50 - screening assembly

[0039] 501 - screen, 502 - sliding rod, 503 - mounting seat, 504 - fourth elastic member DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application. EMBODIMENT

[0041] Please refer to Figures 1-8 ​The structural diagram of the building waste recycling device for building construction is provided by the embodiment 1 of the present application, and the building waste recycling device for building construction comprises a main body 10, and an inlet hopper 101 is installed at the top opening position of the main body 10.

[0042] The crushing roller assembly 20 is arranged in the main body 10, and the crushing roller assembly 20 comprises a first crushing roller 201 and a second crushing roller 202, the first crushing roller 201 is fixedly sleeved on a second rotating shaft 204, the second rotating shaft 204 passes through the side walls of the main body 10 on both sides and is rotatably installed on the adjacent side walls of the main body 10 at both ends, the second crushing roller 202 is fixedly sleeved on a first rotating shaft 203, the first rotating shaft 203 passes through the side walls of the main body 10 on both sides and is rotatably installed on the adjacent side walls of the main body 10 at both ends, and a synchronous assembly is arranged between the first crushing roller 201 and the second crushing roller 202.

[0043] The power mechanism 30 is used for driving the crushing roller assembly 20 to rotate, the power mechanism 30 comprises a support seat 312 and a driving motor 301 installed on the support seat 312, an output end of the driving motor 301 is connected with a driving shaft 304, the driving shaft 304 is rotatably arranged in the second rotating shaft 204, the driving shaft 304 is in transmission connection with the second rotating shaft 204, the driving shaft 304 extends along the length direction of the second rotating shaft 204 and penetrates through both ends of the second rotating shaft 204.

[0044] The screening assembly 50 is arranged in the main body 10, the screening assembly 50 comprises a screen 501, the screen 501 is arranged in an inclined mode and below the crushing roller assembly 20, and slide rods 502 are connected with both sides of the screen 501, the slide rods 502 are horizontally and elastically slidably installed on the main body 10.

[0045] In some embodiments, the driving shaft 304 and the slide rods 502 are provided with a transmission mechanism 40, and the transmission mechanism 40 is used for driving the slide rods 502 to reciprocally slide the screen 501 left and right.

[0046] In use, the building waste that needs to be crushed is fed into the main body 10 through the feeding hopper 101, and the driving motor 301 drives the driving shaft 304 to drive the first crushing roller 201 to rotate, and the second crushing roller 202 also rotates under the cooperation of the synchronous assembly, so that the waste is crushed by the extrusion of the two cooperating first crushing rollers 201 and second crushing rollers 202. After crushing, the waste is screened by the screen 501. In the screening process, the transmission mechanism 40 drives the screen 501 to slide back and forth left and right under the drive of the driving shaft 304, so as to improve the screening effect. The left and right reciprocating sliding frequency of the screen 501 can be coordinated with the rotating speed of the first crushing roller 201 and the second crushing roller 202, so as to well adapt to the equipment operation stability.

[0047] The driving shaft 304 extends along the length direction of the second rotating shaft 204 and penetrates through both ends of the second rotating shaft 204.

[0048] In some embodiments, the first discharge port 102 is used to discharge the sand and stones that do not pass through the screen 501. The second discharge port 103 is used to discharge the sand and stones that pass through the screen 501.

[0049] In some embodiments, the slide rod 502 is arranged outside the main body 10, and the slide rod 502 is horizontally slidably installed on the adjacent mounting seat 503 on both sides, and the mounting seat 503 is fixedly installed on the side wall of the main body 10. The fourth elastic member 504 is sleeved outside the slide rod 502, and the two ends of the fourth elastic member 504 are fixedly installed on the slide rod 502 and the adjacent mounting seat 503, so as to realize the elastic sliding installation of the slide rod 502 on the main body 10. The end of the slide rod 502 can pass through the through hole on the fourth elastic member 504. The fourth elastic member 504 can be a spiral spring.

[0050] In some embodiments, the slide rod 502 can be connected with the side wall of the screen 501 through a connecting rod, and the connecting rod passes through the through hole on the side wall of the main body 10.

[0051] In some embodiments, the transmission mechanism 40 comprises two discs 401 distributed on both sides of the main body 10, both of which are sleeved on the drive shaft 304; a plurality of U-shaped blocks 402 are arranged in a circular array on the side wall of the disc 401, the inside of the U-shaped block 402 is provided with a cylinder 403, and the corresponding side of the disc 401 is also provided with a mounting disc 407 which is rotatably mounted on the side wall of the main body 10, the two sides of the mounting disc 407 are respectively provided with a matching rod 404 and an incomplete gear 405, the upper end of the matching rod 404 is used for inserting into the adjacent U-shaped block 402, and the side of the matching rod 404 abuts against the cylinder 403; the incomplete gear 405 is engaged with a rack 406 fixedly installed on the sliding rod 502. In this way, when the disc 401 rotates with the drive shaft 304, the cylinder 403 drives the matching rod 404 to rotate the mounting disc 407, the mounting disc 407 drives the incomplete gear 405 to rotate, the incomplete gear 405 drives the rack 406 to drive the sliding rod 502 to slide to one side, and in the process of rotating the disc 401, when the cylinder 403 and the matching rod 404 are disengaged, the sliding rod 502 returns to the initial state under the elastic action, and the sliding rod 502 makes the mounting disc 407, the rack 406 and the incomplete gear 405 return to the initial state through the rack 406. In this way, the left and right reciprocating sliding of the screen 501 is completed.

[0052] In some embodiments, the U-shaped block 402 is a strip structure.

[0053] As shown in the drawings, Figure 8 In some embodiments, the two ends of the cylinder 403 are elastically and slidably arranged in the strip-shaped sliding groove 408 on the inside side wall of the U-shaped block 402, the distance from the first end of the sliding groove 408 to the center of the disc 401 is less than the distance from the second end of the sliding groove 408 to the center of the disc 401, the matching rod 404 abuts against one side of the cylinder 403 in the adjacent U-shaped block 402, and the one side faces the first end of the sliding groove 408.

[0054] In some embodiments, when the U-shaped block 402 rotates with the disc 401, the matching rod 404 hinders the cylinder 403 in the abutting U-shaped block 402 from rotating with the U-shaped block 402, and the cylinder 403 drives the abutting matching rod 404 to rotate. Due to the different weights of the sand and gravel to be screened on the screen 501, the sliding rod 502 receives different resistance during sliding, and the matching rod 404 generates different resistance to the cylinder 403. When the weight of the sand and gravel on the screen 501 increases, the cylinder 403 slides to the second end, at this time the cylinder 403 is away from the center of the disc 401, the overlapping distance between the matching rod 404 and the cylinder 403 increases, and the angle of the cylinder 403 driving the matching rod 404 to swing increases, so that the left and right swing range of the sliding rod 502 increases, the screening efficiency is accelerated, and the screening efficiency can be automatically adjusted as needed.

[0055] like Figure 8 As shown, in some embodiments, mounting discs 407 are rotatably fitted at both ends of the cylinder 403. Each mounting disc 407 is slidably disposed in an adjacent groove 408. A third elastic element 409 is also connected to the mounting disc 407. The third elastic element 409 is arranged along the length of the groove 408, and the end of the third elastic element 409 away from the mounting disc 407 is fixedly installed on the top side wall of the groove 408. This achieves the elastic sliding installation of the mounting disc 407 in the U-shaped block 402. The third elastic element 409 can be a helical spring.

[0056] Since if the amount of sand and gravel accumulated on the screen 501 exceeds the set amount, even increasing the swing amplitude of the screen 501 will not achieve effective screening, the disc 401 is elastically rotatably mounted on the drive shaft 304. Two transmission discs 306 are sleeved on the drive shaft 304. The transmission discs 306 are elastically slidable along the axial direction of the drive shaft 304. The two transmission discs 306 are respectively located at both ends of the second rotating shaft 204. A transmission rod 309 is provided on the end of the transmission disc 306 near the end of the second rotating shaft 204. The second rotating shaft 204 is arrayed with no less than two transmission protrusions 305. One side of the transmission rod 309 abuts against the side wall of the adjacent transmission protrusion 305. Two drive bent rods 307 are symmetrically installed on the side of the disc 401 near the transmission disc 306. One end of the drive bent rod 307 near the transmission disc 306 is located in a mating groove 308. The mating groove 308 is arranged on the side of the transmission disc 306 near the transmission rod 309. The side wall of the mating groove 308 is inclined.

[0057] Specifically, when the weight stored on the screen 501 exceeds a set threshold, the cylinder 403 cannot drive the mating rod 404 to rotate. At this time, the disc 401 deflects relative to the drive shaft 304, and the drive bent rod 307 slides along the inclined side wall of the mating groove 308, causing the transmission disc 306 to move closer to the disc 401, causing the transmission rod 309 to disengage from the transmission protrusion 305. This prevents the drive shaft 304 from driving the second rotating shaft 204 to rotate, causing the first crushing roller 201 and the second crushing roller 202 to temporarily stop rotating and crushing, stopping the feeding of material to the screen 501 for a period of time. When the material on the screen 501 decreases, the disc 401 returns to its initial state under the action of elasticity, and the transmission disc 306 moves closer to the transmission protrusion 305, causing the transmission rod 309 to engage with the transmission protrusion 305 again, and the transmission protrusion 305 drives the second rotating shaft 204 to rotate again.

[0058] It should be noted that the disc 401 is rotatably mounted on the drive shaft 304 and cannot slide along the drive shaft 304. The transmission disc 306 can slide axially along the drive shaft 304 but cannot rotate around the drive shaft 304.

[0059] In some embodiments, the driving shaft 304 is sleeved with a first elastic member 310, two ends of the first elastic member 310 are fixedly installed on the driving shaft 304 and the disc 401 respectively, so that the disc 401 is elastically rotatably installed on the driving shaft 304.

[0060] In some embodiments, the driving shaft 304 is further sleeved with a second elastic member 311, two ends of the second elastic member 311 are fixedly installed on the driving shaft 304 and the transmission disc 306 respectively, so that the transmission disc 306 can elastically slide along the driving shaft 304 in the axial direction. The first elastic member 310 is a torsion spring, and the second elastic member 311 is a spiral spring.

[0061] In some embodiments, the driving motor 301 is fixedly installed on the support seat 312.

[0062] The working principle of the application is as follows:

[0063] The construction waste that needs to be crushed enters into the inside of the main body 10 through the feeding hopper 101, and meanwhile the driving motor 301 drives the driving shaft 304 to drive the transmission disc 306 and the transmission rod 309 to rotate, the transmission rod 309 drives the second rotating shaft 204 to drive the first crushing roller 201 to rotate through the transmission protrusion 305, and the second crushing roller 202 also rotates under the cooperation of the synchronous assembly, so that the garbage passes through the two matched first crushing roller 201 and second crushing roller 202, is extruded and crushed, and the garbage after the crushing is completed is screened through the screen 501, the disc 401 rotates following the driving shaft 304 in the screening process, the cylinder 403 in the U-shaped block 402 drives the mounting disc 407 and the incomplete gear 405 to drive the sliding rod 502 to reciprocate through the cooperation rod 404, so as to improve the screening effect, and the left-right reciprocating frequency of the screen 501 can be coordinated with the rotating speed of the first crushing roller 201 and the second crushing roller 202, so as to be well adapted and ensure the stability of the equipment operation. When the weight of the sand and stone on the screen 501 increases, the cylinder 403 slides to the second end, at this time the cylinder 403 is away from the center of the disc 401, the coincidence distance between the cooperation rod 404 and the cylinder 403 increases, and then the angle of the cylinder 403 driving the cooperation rod 404 to swing increases, so that the left-right swinging range of the sliding rod 502 increases, and the screening efficiency is accelerated, so that the screening efficiency can be automatically adjusted according to the needs. When the weight stored on the screen 501 exceeds the set threshold, the cylinder 403 cannot drive the cooperation rod 404 to rotate, at this time the disc 401 is deflected relative to the driving shaft 304, the driving bent rod 307 slides along the inclined side wall of the matched groove 308, so that the transmission disc 306 approaches the disc 401, so that the transmission rod 309 is out of contact with the transmission protrusion 305, so that the driving shaft 304 cannot drive the second rotating shaft 204 to rotate, so that the first crushing roller 201 and the second crushing roller 202 temporarily stop rotating and crushing, and the feeding of the screen 501 is stopped for a period of time, when the feeding on the screen 501 is reduced, the disc 401 returns to the initial state under the action of elasticity, the transmission disc 306 approaches the transmission protrusion 305, so that the transmission rod 309 is matched with the transmission protrusion 305 again, and the transmission protrusion 305 drives the second rotating shaft 204 to rotate again.

[0064] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0065] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or a number of the technical features indicated. Thus, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically defined.

[0066] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0068] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples, without contradiction.

Claims

1. A construction waste recycling device for construction work, characterized by The utility model relates to a kind of rotary screen feeders, including: Main body (10), the top opening position of main body (10) is equipped with feed hopper (101);The bottom of the main body (10) is provided with first discharge port (102), and the sidewall of the main body (10) is provided with second discharge port (103); Crushing roller assembly (20) is arranged in the inside of main body (10), and the crushing roller assembly (20) includes first crushing roller (201) and second crushing roller (202), the first crushing roller (201) is fixedly sleeved on second shaft (204), the second shaft (204) is arranged on both sides of the sidewall of main body (10), and both ends are rotatably installed on the adjacent sidewall of main body (10);Second crushing roller (202) is fixedly sleeved on first shaft (203), and first shaft (203) is arranged on both sides of the sidewall of main body (10), and both ends are rotatably installed on the adjacent sidewall of main body (10), and synchronous assembly is arranged between the first crushing roller (201) and the second crushing roller (202); Power mechanism (30) for driving the rotation of crushing roller assembly (20), the power mechanism (30) includes support seat (312) and drive motor (301) installed on support seat (312), the output end of drive motor (301) is connected with driving shaft (304), and driving shaft (304) is rotatably arranged in second shaft (204);Driving shaft (304) is in transmission with second shaft (204), driving shaft (304) extends along the length direction of second shaft (204), and penetrates the both ends of second shaft (204); Screening assembly (50) is arranged in the inside of main body (10), and the screening assembly (50) includes screen (501), the screen (501) is obliquely arranged, and is arranged below crushing roller assembly (20);Screen (501) is connected with slide bar (502) on both sides, and slide bar (502) is horizontally elastically slidably installed on main body (10); And transmission mechanism (40) is arranged between driving shaft (304) and slide bar (502), and transmission mechanism (40) is arranged to drive slide bar (502) to drive screen (501) to reciprocate left and right slidingly. The transmission mechanism (40) comprises two discs (401) distributed on both sides of the main body (10), and the two discs (401) are sleeved on the driving shaft (304); a plurality of U-shaped blocks (402) are arranged in a circular array on the side wall of the disc (401), the U-shaped block (402) is internally provided with a cylinder (403), and the corresponding side of the disc (401) is further provided with a mounting disc (407) which is rotatably mounted on the side wall of the main body (10); the mounting disc (407) is provided with a matching rod (404) and an incomplete gear (405) on both sides, respectively; the upper end of the matching rod (404) is used for inserting into the adjacent U-shaped block (402), and the side of the matching rod (404) abuts against the cylinder (403); the incomplete gear (405) is engaged with the rack (406) fixedly installed on the sliding rod (502); the two ends of the cylinder (403) are elastically and slidably arranged in the strip-shaped sliding groove (408) on the inner side wall of the U-shaped block (402), and the distance between the first end of the sliding groove (408) and the center of the disc (401) is less than the distance between the second end of the sliding groove (408) and the center of the disc (401); the matching rod (404) abuts against one side of the adjacent cylinder (403), and the side faces the first end of the sliding groove (408). The disc (401) is elastically and rotatably installed on the driving shaft (304), the driving shaft (304) is sleeved with two transmission discs (306), the transmission disc (306) is elastically and slidably arranged on the driving shaft (304) in the axial direction, and the two transmission discs (306) are arranged at the two ends of the second rotating shaft (204); the transmission disc (306) is provided with a transmission rod (309) close to the end of the second rotating shaft (204); the second rotating shaft (204) is provided with not less than two transmission protrusions (305); the side of the transmission rod (309) abuts against the side wall of the adjacent transmission protrusion (305); the disc (401) is symmetrically provided with two driving bent rods (307) close to one side of the transmission disc (306); one end of the driving bent rod (307) close to the transmission disc (306) is arranged in the matching groove (308); the matching groove (308) is arranged on the side of the transmission disc (306) close to the transmission rod (309); and the side wall of the matching groove (308) is obliquely arranged.

2. The construction waste recycling device for building construction according to claim 1, wherein The sliding rod (502) is arranged outside the main body (10), and the sliding rod (502) is horizontally slidably installed on the adjacent mounting seat (503) on both sides; the mounting seat (503) is fixedly installed on the side wall of the main body (10); the fourth elastic member (504) is sleeved outside the sliding rod (502); and the two ends of the fourth elastic member (504) are fixedly installed on the sliding rod (502) and the adjacent mounting seat (503), respectively.

3. The construction waste recycling device for building construction according to claim 2, characterized by The sliding rod (502) is connected with the side wall of the screen (501) through the connecting rod, and the connecting rod penetrates through the through hole in the side wall of the main body (10).

4. The construction waste recycling device for building construction according to claim 1, wherein The driving shaft (304) is sleeved with a first elastic member (310) outside, and two ends of the first elastic member (310) are fixedly installed on the driving shaft (304) and the disc (401) respectively.

5. The construction waste recycling device for building construction according to claim 4, wherein The driving shaft (304) is further sleeved with a second elastic member (311) outside, and two ends of the second elastic member (311) are fixedly installed on the driving shaft (304) and the transmission disc (306) respectively.

6. The construction waste recycling device for building construction according to claim 1, wherein The driving motor (301) is fixedly installed on the support seat (312).

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