CN115609762A

CN115609762A - Dosing unit is used in recycled concrete production

Info

Publication number: CN115609762A
Application number: CN202211380771.9A
Authority: CN
Inventors: 陈尚华; 曾颖; 陈清
Original assignee: Ganzhou Rongsheng New Building Materials Co ltd
Current assignee: Ganzhou Rongsheng New Building Materials Co ltd
Priority date: 2022-11-05
Filing date: 2022-11-05
Publication date: 2023-01-17

Abstract

The invention relates to a batching device, in particular to a batching device for producing recycled concrete. The invention provides a proportioning device for producing recycled concrete, which has a screening function and can screen and crush concrete blocks which are not completely crushed. The invention provides a batching device for producing recycled concrete, which comprises: the front side and the rear side of the bottom of the shell are fixedly connected with a support frame; the left front side of the upper part of the support frame is provided with a first motor; the first rotating shaft is arranged in the shell in a front-back symmetrical rotating mode at the upper part, and the left end of the first rotating shaft at the front side is connected with an output shaft of the first motor through a coupler. The cam is driven to rotate by rotating the second gear, so that the filter screen can be driven to shake up and down, the purpose of screening concrete blocks is achieved, and the quality of later-stage recycled concrete can be improved.

Description

Dosing unit is used in recycled concrete production

Technical Field

The invention relates to a batching device, in particular to a batching device for recycled concrete production.

Background

The recycled concrete is produced by crushing waste concrete blocks, adding ingredients such as cement, water and the like, and mixing the crushed concrete blocks and the ingredients, and the preparation of the recycled concrete is generally completed by a recycled concrete batching device.

Patent grant publication No. CN 214082117U's patent, discloses a dosing unit for recycled concrete production, including the casing, the mid point department fixedly connected with driving motor of casing bottom, fixedly connected with drive pivot on the output shaft at driving motor top, the top of drive pivot runs through the casing and extends to its outside fixedly connected with drive gear, and the fixed surface that lies in the inside drive pivot of casing is connected with the hybrid beam, the equal fixedly connected with feeding pipe in the left and right sides at casing top, be connected with driven spindle through fixing bearing on the feeding pipe, driven spindle is close to one end fixedly connected with of driving motor and drive gear intermeshing's driven gear, driven spindle's surface just lies in the inside fixed position of feeding pipe and is connected with crushing blade, but above-mentioned device does not have the screening function, can't screen and smash incomplete concrete piece to influence the quality of later stage recycled concrete.

Therefore, it is necessary to provide a batching device for recycled concrete production, which has a screening function and can screen and crush incompletely ground concrete blocks so as to improve the quality of the recycled concrete in the later period, so as to solve the above problems.

Disclosure of Invention

In order to overcome the defects that the device does not have a screening function and cannot screen and crush incompletely ground concrete blocks, the invention aims to provide the batching device for producing recycled concrete, which has a screening function and can screen and crush incompletely ground concrete blocks.

The invention is realized by the following technical approaches: a dosing unit for recycled concrete production includes: the front side and the rear side of the bottom of the shell are fixedly connected with a support frame; the left front side of the upper part of the support frame is provided with a first motor; the left end of the first rotating shaft at the front side is connected with an output shaft of a first motor through a coupler; the first rotating shaft is fixedly connected with a crushing roller; the left part of the first rotating shaft is fixedly connected with first gears, and the two first gears are meshed with each other; the lower part in the shell is rotatably provided with a material mixing disc; the left side of the mixing disc is fixedly connected with a handle; a first torsion spring is connected between the right side of the handle and the shell, and the first torsion spring is sleeved on the mixing disc; the screening mechanism is used for screening concrete blocks which are not completely crushed; the blanking mechanism is used for adding ingredients and is arranged on the rear side of the middle part of the shell.

As an improvement of the above aspect, the sifting mechanism includes: the left side of the upper part of the shell is rotatably provided with a third rotating shaft which is positioned below the first motor; the left part of the third rotating shaft is fixedly connected with a second gear; the right end of the third rotating shaft is fixedly connected with a cam; the filter screen, shell upper portion right side is opened there is the discharge opening, has placed the filter screen between discharge opening and the cam.

As an improvement of the above scheme, the blanking mechanism comprises: the rear side of the middle part of the shell is connected and communicated with a discharging pipe; the upper end of the blanking pipe is connected and communicated with the charging barrel; the valve is rotatably arranged on the blanking pipe; and the rear part of the valve is fixedly connected with a third gear.

As the improvement of above-mentioned scheme, still include and be used for driving the valve rotation to the accuse material mechanism of control unloading, accuse material mechanism includes: the rear side of the middle part of the shell is fixedly connected with a sliding rail which is positioned on the right side of the blanking pipe; the sliding block is arranged in the sliding rail in a sliding manner; the second elastic piece is connected between the rear side of the sliding block and the inner wall of the sliding rail; the left side of the sliding block is fixedly connected with a first limiting rod; the first limiting rod is provided with a first gear rack in a sliding mode, and the third gear can be meshed with the first gear rack; the first elastic piece is connected between the right side of the first rack and the right part of the first limiting rod, and the first elastic piece is sleeved on the first limiting rod; the left lower part of the first rack is fixedly connected with a fixed sleeve; the first fixing rod is fixedly connected in the fixing sleeve; the front side of the fixed sleeve is fixedly connected with a wedge block; the left rear side of the upper part of the shell is fixedly connected with the first fixed block, and the inclined surface of the wedge-shaped block is contacted with the first fixed block; the left side of the middle part of the shell is fixedly connected with a second motor which is positioned below the first fixed block; the output shaft of the second motor is fixedly connected with a winding wheel; the pull rope is connected to the pull rope reel, and the right end of the pull rope is connected with the lower portion of the wedge block.

As the improvement of above-mentioned scheme, still including being used for driving the third pivot and rotate, and can drive the supplementary slewing mechanism of compounding dish tilt rotation, supplementary slewing mechanism is including: the left part of the first fixed rod is fixedly connected with a second rack, and a second gear is meshed with the second rack; the left end of the third rotating shaft is fixedly connected with a rotating disc; the connecting rod is arranged at the rear side of the top of the handle in a rotating manner; the top end of the connecting rod is fixedly connected with the second fixed block; the left rear side of the upper part of the shell is provided with a second sliding block in a sliding mode, and the left side of the second sliding block is connected with a second fixed block; the front part in the second fixing block is fixedly connected with a second fixing rod; the second fixed rod is rotatably provided with a rotating block; and the second torsion springs are connected between the left side and the right side of the rotating block and the second fixing block and sleeved on the second fixing rod.

As an improvement of the scheme, the device further comprises a discharging mechanism for controlling discharging, and the discharging mechanism comprises: the front side of the bottom of the shell is fixedly connected with and communicated with a discharge pipe which is positioned at the upper part in the support frame at the front side; the left side and the right side of the discharge pipe are fixedly connected with the third fixed block; the front side of the third fixed block is fixedly connected with a second limiting rod; the baffle is arranged between the two second limiting rods in a sliding mode and used for blocking the discharge pipe; and a third elastic piece is connected between the front side of the third fixing block and the baffle, and is sleeved on the second limiting rod.

As the improvement of above-mentioned scheme, still including the receiving agencies that is used for collecting the concrete, receiving agencies still includes: the collecting frame is arranged between the two supporting frames in a sliding manner; the handle is fixedly connected to the left side of the collecting frame.

As an improvement of the proposal, the observation plate is fixedly connected with the front side of the lower part of the shell.

As can be seen from the above description of the structure of the present invention, the design starting point, concept and advantages of the present invention are: 1. the cam is driven to rotate by rotating the second gear, so that the filter screen can be driven to shake up and down, the purpose of screening concrete blocks is achieved, and the quality of later-stage recycled concrete can be improved.

2. Can drive the valve rotation through rotating the third gear for batching in the charging barrel flows into to the compounding dish in through the unloading pipe downwards, and then mixes with the concrete powder in the compounding dish, thereby makes new concrete.

3. Can pass through the turning block rebound through the carousel reversal to drive the handle and rotate forward, deformation takes place thereupon for first torsion spring, and the handle drives the material mixing disc and rotates and pour out the concrete, and the carousel breaks away from with the turning block, can drive the material mixing disc reversal through first torsion spring and reset, so reciprocal, thereby can pour the concrete intermittent type nature in the material mixing disc, prevent that the concrete in the material mixing disc from filling up the back and stopping up inside the shell.

4. Through baffle and the cooperation of delivery pipe, can control the emission of concrete to be convenient for pour the concrete in the collection frame.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial perspective sectional structural schematic view of the present invention.

Fig. 3 is a schematic partial perspective sectional view of the screening mechanism of the present invention.

Fig. 4 is a schematic partial perspective view of the blanking mechanism of the present invention.

FIG. 5 is a schematic view of a first partially-separated body structure of the material control mechanism of the present invention.

FIG. 6 is a schematic diagram of a second partial structure of the material control mechanism of the present invention.

Fig. 7 is a partial perspective sectional structural schematic view of the auxiliary rotating mechanism of the present invention.

Fig. 8 is a partial perspective view of the auxiliary rotating mechanism of the present invention.

FIG. 9 is a schematic view of a partial perspective cross-sectional structure of the discharge mechanism of the present invention.

Fig. 10 is a schematic partial perspective view of the receiving mechanism of the present invention.

Number designation in the figures: 1. a supporting frame, 2, a shell, 3, a first motor, 4, a first rotating shaft, 5, a crushing roller, 6, a first gear, 7, a mixing disc, 8, a handle, 81, a first torsion spring, 9, an observation plate, 10, a screening mechanism, 1001, a third rotating shaft, 1002, a second gear, 1003, a cam, 1005, a discharge hole, 1004, a filter screen, 11, a blanking mechanism, 1101, a blanking pipe, 1102, a charging barrel, 1103, a valve, 1104, a third gear, 12, a material control mechanism, 1201, a sliding block, 1202, a first rack, 1203, a first limiting rod, 1204, a first elastic piece, 1205, a fixed sleeve, 1206 and a wedge block, 1207, a first fixed rod, 1208, a second motor, 1209, a reel, 1210, a pull rope, 1211, a first fixed block, 13, an auxiliary rotating mechanism, 1301, a second rack, 1302, a rotary disc, 1303, a connecting rod, 1304, a second fixed block, 1305, a second sliding block, 1306, a rotating block, 1307, a second fixed rod, 1308, a second torsion spring, 1212, a sliding rail, 1213, a second elastic piece, 14, a discharging mechanism, 1401, a discharging pipe, 1402, a baffle plate, 1403, a second limiting rod, 1404, a third fixed block, 1405, a third elastic piece, 15, a receiving mechanism, 1501, a collecting frame, 1502 and a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

The utility model provides a dosing unit for recycled concrete production, refer to fig. 1-4, including support frame 1, shell 2, first motor 3, first pivot 4, crushed aggregates roller 5, first gear 6, mixing pan 7, handle 8, first torsion spring 81, observe board 9, screening mechanism 10 and unloading mechanism 11, equal rigid coupling in both sides has support frame 1 around shell 2 bottom, first motor 3 is installed to support frame 1 upper portion left front side, upper portion front and back symmetry rotary type is provided with first pivot 4 in the shell 2, the first pivot 4 left end of front side passes through the shaft coupling and is connected with the output shaft of first motor 3, rigid coupling has crushed aggregates roller 5 on first pivot 4, equal rigid coupling in first pivot 4 left portion has first gear 6, two first gear 6 intermeshing, the lower part rotary type is provided with mixing pan 7 in the shell 2, mixing pan 7 left side is provided with handle 8 through the welded mode, be connected with first torsion spring 81 between handle 8 right side and the shell 2, first torsion spring 81 overlaps on mixing pan 7, shell 2 lower part side has the mixing pan 9 before the shell, the rigid coupling has the observation board 9, the upper portion that the stirring pan 9 can be used for the crushing mechanism is provided with the crushing mechanism after the stirring mechanism for the addition of the stirring mechanism, the stirring mechanism is provided with the clear.

Referring to fig. 3, the screening mechanism 10 includes a third shaft 1001, a second gear 1002, a cam 1003 and a filter screen 1004, the third shaft 1001 is rotatably disposed on the left side of the upper portion of the housing 2, the third shaft 1001 is located below the first motor 3, the second gear 1002 is fixedly connected to the left portion of the third shaft 1001, the cam 1003 is fixedly connected to the right end of the third shaft 1001, a discharge hole 1005 is formed in the right side of the upper portion of the housing 2, and the filter screen 1004 is disposed between the discharge hole 1005 and the cam 1003.

Referring to fig. 1 and 4, the blanking mechanism 11 includes a blanking pipe 1101, a charging barrel 1102, a valve 1103 and a third gear 1104, the blanking pipe 1101 is connected and communicated with the rear side of the middle portion of the housing 2, the charging barrel 1102 is connected and communicated with the upper end of the blanking pipe 1101, the valve 1103 is rotatably arranged on the blanking pipe 1101, and the third gear 1104 is fixedly connected to the rear portion of the valve 1103.

When the device is used, sufficient ingredients are poured into the charging barrel 1102 by a worker, then the worker turns on the first motor 3, the output shaft of the first motor 3 drives the first rotating shaft 4 at the front side to rotate, the first rotating shaft 4 at the front side drives the first rotating shaft 4 at the rear side to rotate through the first gear 6, the first rotating shaft 4 drives the crushing roller 5 to rotate, then the worker pours a concrete block onto the crushing roller 5, so that the concrete block is crushed by the two crushing rollers 5 and then falls onto the filter screen 1004, meanwhile, the worker rotates the second gear 1002, the second gear 1002 drives the cam 1003 to rotate through the third rotating shaft 1001, the cam 1003 rotates to drive the filter screen 1004 to shake up and down, so that the thoroughly crushed concrete falls into the mixing disc 7 through the filter screen 1004, the incompletely crushed concrete is discharged outwards through the discharge hole 1005, and the worker collects the concrete by using a container, then pouring the mixture into the shell 2 again for crushing, so as to avoid influencing the quality of the recycled concrete block, when the mixture needs to be added, a worker rotates the third gear 1104 to drive the valve 1103 to rotate, so that the mixture in the charging barrel 1102 flows downwards into the mixing disc 7 through the discharging pipe 1101, and then is mixed with the concrete powder in the mixing disc 7, thereby preparing new concrete, when the mixture does not need to be added, the worker reverses the third gear 1104 to drive the valve 1103 to reverse and reset, then the worker rotates the handle 8 forwards, the handle 8 drives the mixing disc 7 to rotate forwards, the first torsion spring 81 deforms accordingly, the mixing disc 7 rotates forwards to pour out the concrete, the worker collects the concrete by using a container, after the concrete in the mixing disc 7 is poured out completely, the worker loosens the handle 8, thereby first torsion spring 81 resets and drives mixing disk 7 reversal and reset, and after the device need not use, the staff closes first motor 3 to make the bits of broken glass roller 5 stall.

Example 2

On the basis of embodiment 1, referring to fig. 1, 5 and 6, the device further includes a material control mechanism 12, the material control mechanism 12 includes a sliding block 1201, a first rack 1202, a first limit rod 1203, a first elastic member 1204, a fixing sleeve 1205, a wedge block 1206, a first fixing rod 1207, a second motor 1208, a reel 1209, a pull rope 1210 and a first fixing block 1211, a sliding rail 1212 is fixedly connected to the rear side of the middle portion of the housing 2, the sliding rail 1212 is located at the right side of the blanking tube 1101, the sliding block 1201 is slidably disposed in the sliding rail 1212, a second elastic member 1213 is connected between the rear side of the sliding block 1201 and the inner wall of the sliding rail 1212, the first limit rod 1203 is disposed at the left side of the sliding block 1201 in a welded manner, the first rack 1202 is slidably disposed on the first limit rod 1203, the third gear 1104 can be meshed with the first rack 1202, a first elastic part 1204 is connected between the right side of the first rack 1202 and the right part of the first limiting rod 1203, the first elastic part 1204 is sleeved on the first limiting rod 1203, a fixing sleeve 1205 is fixedly connected to the lower left part of the first rack 1202, a first fixing rod 1207 is fixedly connected to the inner side of the fixing sleeve 1205, a wedge block 1206 is fixedly connected to the front side of the fixing sleeve 1205, a first fixing block 1211 is fixedly connected to the left rear side of the upper part of the shell 2, an inclined surface of the wedge block 1206 is in contact with the first fixing block 1211, a second motor 1208 is fixedly connected to the left side of the middle part of the shell 2, the second motor 1208 is located below the first fixing block 1211, a reel 1209 is fixedly connected to an output shaft of the second motor 1208, a pull rope 1210 is connected to the reel 1209, and the right end of the pull rope 1210 is connected to the lower part of the wedge block 1206.

The worker turns on the second motor 1208, the output shaft of the second motor 1208 drives the reel 1209 to rotate, the reel 1209 winds the pull rope 1210, the pull rope 1210 pulls the wedge block 1206 to move leftward, the wedge block 1206 drives the fixing sleeve 1205 and the first rack 1202 to move leftward, the first elastic member 1204 is stretched accordingly, the first rack 1202 moves leftward to drive the third gear 1104 to rotate, the third gear 1104 drives the valve 1103 to rotate, so that the ingredients fall into the mixing tray 7 through the discharging pipe 1101 and are mixed with concrete in the mixing tray 7, while the wedge block 1206 moves leftward, the wedge block 1206 is pressed by the first fixing block 1211 to move backward, the wedge block 1206 drives the fixing sleeve 1205 and the first rack 1202 to move backward, so that the third gear 1104 is disengaged from the first rack 1202, the first rack 1202 drives the first limiting rod 1203 to move backward, the second elastic member 1213 is compressed accordingly, after the ingredients in the mixing tray 7 move enough, the worker controls the output shaft of the second motor to rotate reversely, the reel 1208 drives the pull rope to move reversely, so that the first elastic member 1213 drives the first rack 1202 to move forward and the first resetting gear 1202 to move forward, and the first rack 1202 rod 1202 can drive the discharging rod 1104 to move again, and the discharging rod 1202 to move forward, and the blanking rod 1202 to move again, and the discharging rod 1202 to move backward, and the wedge block 1202 to move forward and the discharging rod 1202 and to cooperate with the discharging rod 1104 to move backward.

Referring to fig. 1, 7 and 8, the device further includes an auxiliary rotating mechanism 13, the auxiliary rotating mechanism 13 includes a second rack 1301, a rotating plate 1302, a connecting rod 1303, a second fixed block 1304, a second slider 1305, a rotating block 1306, a second fixed rod 1307, a second torsion spring 1308, a sliding rail 1212 and a second elastic member 1213, the left portion of the first fixed rod 1207 is fixedly connected with the second rack 1301, the second gear 1002 is engaged with the second rack 1301, the left end of the third rotating shaft is fixedly connected with the rotating plate 1302, the rear side of the top of the handle 8 is rotatably provided with the connecting rod 1303, the top end of the connecting rod 1303 is fixedly connected with the second fixed block 1304, the left rear side of the upper portion of the housing 2 is rotatably provided with the second slider 1305, the left side of the second slider 1305 is connected with the second fixed block 1304, the front portion of the second fixed block 1304 is fixedly connected with the second fixed rod 1307, the rotating block 1306 is rotatably provided with the second fixed rod 1307, the second torsion spring 1308 is connected between the left and right sides of the rotating block 1306 and the second fixed block 1308, and the second torsion spring is sleeved on the second fixed rod 1307.

When the fixing sleeve 1205 moves backwards, the fixing sleeve 1205 drives the first fixing rod 1207 to move backwards, the first fixing rod 1207 drives the second rack 1301 to move backwards, the second rack 1301 drives the second gear 1002 to rotate, the second gear 1002 drives the third shaft 1001 and the cam 1003 to rotate, so that the cam 1003 drives the filter screen 1004 to move upwards and downwards to screen concrete, meanwhile, the third shaft 1001 rotates to drive the turntable 1302 to rotate, when the turntable 1302 rotates to contact with the rotating block 1306, the turntable 1302 drives the rotating block 1306 to rotate, the second torsion spring 1308 deforms, when the turntable 1302 rotates to be separated from the rotating block 1306, the second torsion spring 1308 resets to drive the rotating block 1306 to rotate reversely and reset, when the fixing sleeve 1205 moves forwards, the fixing sleeve 1205 drives the first fixing rod 1207 to move forwards, the first fixing rod 1207 drives the second rack 1301 to move forwards, the second rack 1301 drives the second gear 1002 to rotate reversely, the second gear 1002 drives the third rotating shaft 1001 and the cam 1003 to rotate reversely, the cam 1003 continuously drives the filter screen 1004 to move up and down to screen the concrete, meanwhile, the third rotating shaft 1001 rotates reversely to drive the rotating disc 1302 to rotate reversely, when the rotating disc 1302 rotates reversely to contact with the rotating block 1306, the rotating block 1302 drives the rotating block 1306 to move up, the rotating block 1306 drives the second fixed block 1304, the connecting rod 1303 and the second sliding block 1305 to move up, the connecting rod 1303 drives the handle 8 to rotate up, the handle 8 drives the mixing disc 7 to rotate and incline, so that the mixing disc 7 pours the concrete, when the rotating disc 1302 is separated from the rotating block 1306, the first torsion spring 81 is reset to drive the handle 8 and the mixing disc 7 to rotate reversely and reset, the handle 8 drives the connecting rod 1303 to move down, the connecting rod 1303 drives the second fixed block 1304 and the second sliding block 1305 to move down and reset, and the reciprocating operation is carried out, so that the concrete in the mixing disc 7 can be poured out intermittently, the concrete in the mixing disc 7 is prevented from being blocked in the shell 2 after being filled.

Referring to fig. 1 and 9, the discharging device 14 further comprises a discharging mechanism 14, the discharging mechanism 14 comprises a discharging pipe 1401, a baffle 1402, a second limiting rod 1403, a third fixing block 1404 and a third elastic piece 1405, the discharging pipe 1401 is fixedly connected and communicated with the front side of the bottom of the shell 2, the discharging pipe 1401 is located at the upper portion of the support frame 1 on the front side, the third fixing block 1404 is fixedly connected to the left side and the right side of the discharging pipe 1401, the second limiting rod 1403 is arranged on the front side of the third fixing block 1404 in a welding mode, the baffle 1402 is arranged between the two second limiting rods 1403 in a sliding mode, the baffle 1402 is used for blocking the discharging pipe 1401, the third elastic piece 1405 is connected between the front side of the third fixing block 1404 and the baffle 1402, and the third elastic piece 1405 is sleeved on the second limiting rod 1403.

Referring to fig. 1 and 10, the collecting device further comprises a collecting mechanism 15, the collecting mechanism 15 further comprises a collecting frame 1501 and a handle 1502, the collecting frame 1501 is slidably arranged between the two support frames 1, and the handle 1502 is arranged on the left side of the collecting frame 1501 in a welding mode.

Initially, discharge pipe 1401 is blocked by baffle 1402, when concrete needs to be discharged, a worker pulls baffle 1402 forward, third elastic piece 1405 is compressed accordingly, baffle 1402 moves forward, so that concrete in casing 2 can be discharged into collection frame 1501, after collection frame 1501 is filled with concrete, worker loosens baffle 1402, third elastic piece 1405 drives baffle 1402 to move backward to reset, so that baffle 1402 blocks discharge pipe 1401 again, then worker pulls handle 1502 leftward, so that collection frame 1501 is driven to move leftward, so that collection frame 1501 is taken out, worker pours concrete in collection frame 1501 out, and then collection frame 1501 is put back to original place, so that discharge of concrete can be controlled by matching baffle 1402 with discharge pipe 1401, and concrete in collection frame 1501 can be poured out conveniently.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a dosing unit is used in recycled concrete production which characterized by includes:

the front side and the rear side of the bottom of the shell (2) are fixedly connected with a support frame (1);

the left front side of the upper part of the support frame (1) is provided with a first motor (3);

the left end of the first rotating shaft (4) at the front side is connected with an output shaft of the first motor (3) through a coupler;

the crushing roller (5) is fixedly connected to the first rotating shaft (4);

the left part of the first rotating shaft (4) is fixedly connected with a first gear (6), and the two first gears (6) are meshed with each other;

the lower part in the shell (2) is rotatably provided with a material mixing disc (7);

a handle (8), the left side of the mixing disc (7) is fixedly connected with the handle (8);

a first torsion spring (81), wherein the first torsion spring (81) is connected between the right side of the handle (8) and the shell (2), and the first torsion spring (81) is sleeved on the mixing disc (7);

the screening mechanism (10) is arranged at the upper part of the shell (2) and is used for screening concrete blocks which are not completely crushed;

the blanking mechanism (11) is arranged on the rear side of the middle part of the shell (2) and is used for adding ingredients.

2. The batching device for the production of recycled concrete according to claim 1, characterized in that said screening means (10) comprise:

the third rotating shaft (1001) is rotatably arranged on the left side of the upper part of the shell (2), and the third rotating shaft (1001) is positioned below the first motor (3);

the left part of the second gear (1002), the third rotating shaft (1001) is fixedly connected with a second gear (1002);

the cam (1003) is fixedly connected to the right end of the third rotating shaft (1001);

the filter screen (1004) is arranged on the right side of the upper part of the shell (2), and a discharge hole (1005) is formed in the right side of the upper part of the shell (2), and the filter screen (1004) is arranged between the discharge hole (1005) and the cam (1003).

3. The batching device for the production of recycled concrete according to claim 2, characterized in that the blanking means (11) comprise:

the rear side of the middle part of the shell (2) is connected and communicated with a discharging pipe (1101);

the upper end of the blanking pipe (1101) is connected and communicated with the charging barrel (1102);

the valve (1103) is arranged on the blanking pipe (1101) in a rotating mode;

and a third gear (1104) is fixedly connected to the rear part of the valve (1103).

4. A batching device for recycled concrete production as claimed in claim 3, characterized in that it further comprises a control means (12) for driving the valve (1103) in rotation, so as to control the blanking, the control means (12) comprising:

the sliding rail (1212) is fixedly connected to the rear side of the middle of the shell (2), and the sliding rail (1212) is located on the right side of the discharging pipe (1101);

the sliding block (1201) is arranged in the sliding rail (1212) in a sliding manner;

a second elastic element (1213), wherein the second elastic element (1213) is connected between the rear side of the sliding block (1201) and the inner wall of the sliding rail (1212);

the left side of the sliding block (1201) is fixedly connected with a first limiting rod (1203);

the first gear rack (1202) is arranged on the first limiting rod (1203) in a sliding mode, and the third gear (1104) can be meshed with the first gear rack (1202);

the first elastic piece (1204) is connected between the right side of the first rack (1202) and the right part of the first limiting rod (1203), and the first elastic piece (1204) is sleeved on the first limiting rod (1203);

a fixed sleeve (1205), wherein the fixed sleeve (1205) is fixedly connected to the lower left part of the first rack (1202);

the first fixing rod (1207) is fixedly connected in the fixing sleeve (1205);

the front side of the fixed sleeve (1205) is fixedly connected with the wedge block (1206);

the first fixing block (1211) is fixedly connected to the left rear side of the upper portion of the shell (2), and the inclined surface of the wedge block (1206) is in contact with the first fixing block (1211);

the left side of the middle part of the shell (2) is fixedly connected with a second motor (1208), and the second motor (1208) is positioned below the first fixed block (1211);

a reel (1209), the output shaft of the second motor (1208) is fixedly connected with the reel (1209);

the pull rope (1210) is connected to the winding wheel (1209), and the right end of the pull rope (1210) is connected with the lower portion of the wedge block (1206).

5. The batching device for recycled concrete production according to claim 4, further comprising an auxiliary rotating mechanism (13) for driving the third rotating shaft (1001) to rotate and driving the mixing disc (7) to rotate and incline, wherein the auxiliary rotating mechanism (13) comprises:

the left part of the first fixing rod (1207) is fixedly connected with a second rack (1301), and a second gear (1002) is meshed with the second rack (1301);

the left end of the third rotating shaft (1001) is fixedly connected with the rotating disc (1302);

a connecting rod (1303), wherein the rear side of the top of the handle (8) is rotatably provided with the connecting rod (1303);

the top end of the connecting rod (1303) is fixedly connected with the second fixed block (1304);

a second sliding block (1305), the left rear side of the upper part of the shell (2) is provided with the second sliding block (1305) in a sliding way,

the left side of the second sliding block (1305) is connected with a second fixed block (1304);

a second fixed rod (1307), wherein the inner front part of the second fixed block (1304) is fixedly connected with the second fixed rod (1307);

a rotating block (1306), wherein the second fixed rod (1307) is rotatably provided with the rotating block (1306);

and second torsion springs (1308) are connected between the left side and the right side of the rotating block (1306) and the second fixing block (1304), and the second torsion springs (1308) are sleeved on the second fixing rod (1307).

6. The batching device for recycled concrete production according to claim 5, further comprising a discharging mechanism (14) for controlling discharging, wherein the discharging mechanism (14) comprises:

the discharge pipe (1401) is fixedly connected and communicated with the front side of the bottom of the shell (2), and the discharge pipe (1401) is positioned at the upper part in the support frame (1) at the front side;

the left side and the right side of the discharge pipe (1401) are fixedly connected with the third fixed block (1404);

the front side of the third fixing block (1404) is fixedly connected with a second limiting rod (1403);

the baffle (1402) is arranged between the two second limiting rods (1403) in a sliding mode, and the baffle (1402) is used for blocking the discharge pipe (1401);

and a third elastic piece (1405) is connected between the front side of the third fixing block (1404) and the baffle plate (1402), and the third elastic piece (1405) is sleeved on the second limiting rod (1403).

7. The batching device for recycled concrete production according to claim 6, further comprising a receiving mechanism (15) for collecting concrete, wherein the receiving mechanism (15) further comprises:

the collecting frame (1501) is arranged between the two supporting frames (1) in a sliding mode; the handle (1502) is fixedly connected to the left side of the collecting frame (1501).

8. The batching device for recycled concrete production according to claim 7, characterized in that the observation plate (9) is fixed to the front side of the lower part of the casing (2).