A construction waste crushing device

Abstract

The present invention belongs to the field of crushers. A construction waste crushing device comprises a jaw crusher, wherein the jaw crusher comprises an outer shell, wherein a fixed jaw 1, a fixed jaw 2 and a movable jaw are arranged in the outer shell, a discharge channel is arranged between the fixed jaw 1 and the fixed jaw 2, an iron remover is arranged on the upper left side of the discharge channel, a plurality of movable tooth plates are longitudinally arranged on a side of the movable jaw close to the fixed jaw 1 and the fixed jaw 2, a plurality of fixed tooth plates 1 and a fixed tooth plate 2 are respectively arranged on a side of the fixed jaw 1 and the fixed jaw 2 close to the movable jaw, the plurality of fixed tooth plates 1 and the fixed tooth plate 2 are arranged at intervals from the movable tooth plate, a concave corner is arranged in the middle of the movable tooth plate, the movable tooth plate at the lower part of the concave corner is located between the fixed tooth plate 2, the concrete block is secondary crushed through the concave corner, the crushed metal waste is lifted by the movable tooth plate and then screened out through the discharge channel, and the crushed metal waste is discharged from the throwing port for recovery in cooperation with the iron remover.

Description

Technical Field

[0001] The invention belongs to the field of crushers, and in particular relates to a construction waste crushing device. Background Art

[0002] After the demolition of existing brick-concrete structures, the discarded bricks and concrete blocks are generally crushed into recycled aggregates, which can be used for paving road bases and subbases, or as filling materials for road embankment construction.

[0003] For example, a civil engineering construction waste treatment device disclosed in the invention patent with the authorized patent announcement number CN118142683B includes a mobile frame I, a jaw crusher, a slider I, a bucket, a baffle, an electric push rod I, a rotating frame, etc. The slider I is symmetrically slidably connected to the mobile frame I, the bucket is rotatably connected between the sliders I, the baffle is rotatably connected to the bucket, the slider I is rotatably connected to the electric push rod I, the telescopic rod of the electric push rod I is rotatably connected to the bucket, and the rotating frame is rotatably connected to the frame of the jaw crusher. The present invention cooperates with the slider I, the bucket, the baffle, the electric push rod I, the rotating frame, the breaker, the electric push rod II, the lifting mechanism and the traction mechanism to quickly crush large construction waste when facing large construction waste, and automatically send the crushed large construction waste into the jaw crusher for crushing.

[0004] The hardness of steel bars is about seven to eight times that of concrete blocks. In the process of processing construction waste, although jaw crushers are easier to clean than cone crushers and impact crushers, when the lower opening of the jaw crusher is small, it is easy for steel bars to gather at the discharge port and cause jamming. When the steel bars are stuck inside the crusher, it is not only easy to cause internal wear, but also easy to cause damage to the drive device. Even if the steel bars are discharged from the discharge port after being crushed with the concrete, the metal material in the concrete is easily buried in the crushed concrete fragments. At the same time, the concrete on some steel bars is not completely crushed, which is not convenient for sorting and recycling. Therefore, a construction waste crushing device that can crush concrete waste with steel bars is needed. Summary of the invention

[0005] In view of the above problems, the present invention proposes a construction waste crushing device, which effectively solves the problem in the prior art that concrete waste with metal is prone to jamming and wear during crushing and is inconvenient for recycling and sorting.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a construction waste crushing device, including a jaw crusher, the jaw crusher including a shell, a fixed jaw 1, a fixed jaw 2 and a movable jaw are arranged in the shell, the fixed jaw 1 is arranged on the upper part of the fixed jaw 2, the movable jaw is located on the right side of the fixed jaw 1 and the fixed jaw 2, a feed port is arranged on the upper part of the fixed jaw 1 and the movable jaw, a discharge channel is arranged between the fixed jaw 1 and the fixed jaw 2, an iron remover is arranged on the upper left side of the discharge channel, a throwing port is arranged on the side of the shell, the iron remover extends to the outside of the shell through the throwing port, the movable jaw is rotatably connected to an eccentric shaft, the eccentric shaft is rotatably connected to the two ends of the shell, the One end of the eccentric shaft is connected to a driving device, and a sliding device is hinged on the rear side surface of the movable jaw, and a plurality of movable tooth plates are longitudinally arranged on a side of the movable jaw close to the fixed jaw 1 and the fixed jaw 2, and a plurality of fixed tooth plates 1 and a fixed tooth plate 2 are respectively arranged on the side of the fixed jaw 1 and the fixed jaw 2 close to the movable jaw, and the plurality of fixed tooth plates 1 and the fixed tooth plate 2 are arranged at intervals from the movable tooth plate, and a concave corner is arranged in the middle of the movable tooth plate, and the concave corner is located on the side of the movable tooth plate close to the fixed tooth plate, and the concave corner includes a hypotenuse 1 and a hypotenuse 2, and the hypotenuse 2 is inclined downward, and the hypotenuse 2 can be moved to the discharge channel by rotating the eccentric shaft, and the movable tooth plate at the lower part of the concave corner is located between the plurality of fixed tooth plates 2 arranged at intervals.

[0007] Furthermore, a material guide plate 1 and a material guide plate 2 are provided at the feed port, and a funnel shape which is wide at the top and narrow at the bottom is formed between the material guide plate 1 and the material guide plate 2. The movable jaw and the fixed jaw are inclined in the same direction, and the middle position of the movable tooth plate protrudes toward the discharge channel, and the concave corner is located at the protrusion of the movable tooth plate.

[0008] Furthermore, a sieve plate 1 is provided at the lower left portion of the discharge channel, the sieve plate 1 is inclined upward from left to right, a vibration motor 1 is provided on the lower side of the sieve plate 1, and an elastic device 1 is provided at one end of the sieve plate 1 close to the fixed jaw 2.

[0009] Furthermore, a support rod is provided on the left side of the outer shell, and an upper feeding device is hinged on the support rod, and the upper feeding device includes a second sieve plate hinged to the upper end of the support rod, and one end of the second sieve plate away from the support rod is arranged at the feed port, and a vibration motor 2 is provided on the lower side of the second sieve plate, and a collecting plate is provided below the second sieve plate, and one end of the collecting plate is hinged to the support rod, and a screening feed port is opened on the left outer shell of the first sieve plate, and one end of the collecting plate away from the support rod is hinged to the left side of the first sieve plate.

[0010] Furthermore, when the eccentric shaft rotates, the concave corner does not completely overlap with a side surface of the fixed tooth plate close to the movable jaw.

[0011] Furthermore, the fixed tooth plate 1 and the fixed tooth plate 2 are integrally connected with a fixed tooth mounting plate on one side away from the movable tooth plate, and the movable tooth plate is integrally connected with a movable tooth mounting plate on one side away from the fixed jaw 1 and the fixed jaw 2. The fixed tooth mounting plate and the movable tooth mounting plate are detachably connected to the fixed jaw 1, the fixed jaw 2 and the movable jaw, respectively.

[0012] Furthermore, the eccentric shaft is passed through the lower part of the movable jaw to form a rotational connection with the movable jaw.

[0013] Furthermore, the iron remover includes a magnet and a conveyor belt, the magnet is located in the interlayer at one end of the conveyor belt, the end of the conveyor belt with the magnet is located above the left side of the discharge channel, and the end of the conveyor belt away from the magnet extends to the outside of the shell through the discharge port.

[0014] Furthermore, the sliding device includes a sliding rod, a sleeve, an elastic member and a rotating shaft. A hinged head is provided at one end of the sliding rod, and a slider is provided at the other end. The hinged head is hinged to the movable jaw. The slider is slidably connected in the sleeve. The elastic member is located in the sleeve and its two ends respectively abut the sleeve and the slider. The two ends of the rotating shaft are rotatably connected to the outer shell, and the sleeve is fixed on the rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the present invention, the crushing step is divided into two steps by setting the fixed tooth plate 1 to cooperate with the fixed tooth plate 2. In step 1, the movable tooth plate approaches the fixed tooth plate 1 to roughly crush the concrete waste, and the crushed fine materials can fall and be discharged through the gap between the movable tooth plate and the fixed tooth plate 1 and the fixed tooth plate 2. In step 2, the concrete blocks with steel bars and the broken blocks that do not meet the rough crushing standards can be intercepted by setting the concave corner to cooperate with the fixed tooth plate 2, and the secondary crushing is performed by the concave corner close to the fixed plate tooth 1 to make the crushed materials more uniform and less likely to cause the equipment to get stuck.

[0017] At the same time, the concave corner is close to the fixed plate teeth, so that the coarsely crushed concrete blocks squeeze the concrete blocks with steel bars, making it easier to completely crush the concrete on the steel bars, thereby obtaining metal waste. At the same time, the steel bar waste in the concave corner can be discharged through the discharge channel during the lifting process of the movable tooth plate. The iron remover installed at the discharge channel can discharge the metal waste obtained after crushing from the throwing port, which is convenient for classification and recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the working state of the present invention during crushing;

[0020] Figure 3 A top view of the present invention;

[0021] Figure 4 It is a three-dimensional diagram of the movable tooth plate;

[0022] Figure 5 It is a schematic diagram of the internal structure of the sliding device;

[0023] Figure 6 for Figure 1 A magnified view of the structure of the middle B section;

[0024] Figure 7 It is a stereogram of the present invention.

[0025] In the figure: 1, housing; 2, fixed jaw 1; 3, fixed jaw 2; 4, movable jaw; 5, feed port; 6, discharge channel; 7, iron remover; 71, magnet; 72, conveyor belt; 8, ejection port; 9, eccentric shaft; 10, driving device; 11, sliding device; 111, sliding rod; 1101, hinged head; 1102, sliding block; 112, sleeve; 113, elastic member; 114, rotating shaft; 12, movable tooth plate; 12 1. Movable tooth mounting plate; 13. Fixed tooth plate 1; 131. Fixed tooth mounting plate; 14. Fixed tooth plate 2; 15. Concave corner; 151. Bevel 1; 152. Bevel 2; 16. Material guide plate 1; 17. Material guide plate 2; 18. Screen plate 1; 19. Vibration motor 1; 20. Elastic device 1; 21. Support rod; 22. Upper feeding device; 221. Screen plate 2; 222. Vibration motor 2; 223. Collecting plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 7As shown, a construction waste crushing device includes a jaw crusher, the jaw crusher includes a shell 1, the shell 1 is a metal welded box, a fixed jaw 2, a fixed jaw 2 3 and a movable jaw 4 are arranged in the shell 1, the fixed jaw 2 is arranged on the upper part of the fixed jaw 2 3, the fixed jaw 2 and the fixed jaw 2 3 are both clamped and fixed by bolts passing through the shell 1 from the side, the movable jaw 4 is located on the right side of the fixed jaw 2 and the fixed jaw 2 3, a feed port 5 is arranged on the upper part of the fixed jaw 2 and the movable jaw 4, a discharge channel 6 is arranged between the fixed jaw 2 and the fixed jaw 2 3, an iron remover 7 is arranged on the upper left side of the discharge channel 6, and the shell 1 A throwing port 8 is provided on the side, and the iron remover 7 extends to the outside of the shell 1 through the throwing port 8. The movable jaw 4 is provided with an eccentric shaft hole, and an eccentric shaft 9 is passed through the eccentric shaft hole. Inner bearings are provided at both ends of the eccentric shaft hole, and both ends of the eccentric shaft 9 are passed through the inner ring of the inner bearing, so that the eccentric shaft 9 and the movable jaw 4 are rotatably connected. External shaft holes are provided on the front and rear sides of the shell 1, and an external bearing is installed in the external shaft hole. Both ends of the eccentric shaft 9 are passed through the external bearing installed in the external shaft hole to form a rotatable connection with the shell 1. Both ends of the eccentric shaft 9 extend to the outside of the shell 1, and both ends of the eccentric shaft 9 are provided with square keys, and both ends of the eccentric shaft 9 are key-connected with flywheels, such as Figure 3 As shown, a driving device 10 is fixedly installed on the side of the housing 1 by screws, and the driving device 10 is a driving motor. The output end of the driving motor is connected to the flywheel through a pulley to drive the eccentric shaft 9 to rotate. A sliding device 11 is hinged on the rear side of the movable jaw 4. A plurality of movable tooth plates 12 are longitudinally arranged on a side of the movable jaw 4 close to the fixed jaw 1 2 and the fixed jaw 2 3. A plurality of fixed tooth plates 13 and a fixed tooth plate 2 14 are respectively arranged on the side of the fixed jaw 1 2 and the fixed jaw 2 3 close to the movable jaw 4. The fixed tooth plate 13 and the fixed tooth plate 2 14 are both arranged at intervals from the movable tooth plate 12, and a concave corner 15 is arranged in the middle of the movable tooth plate 12, and the concave corner 15 is located on the side of the movable tooth plate 12 close to the fixed tooth plate 13, and the concave corner 15 includes a bevel 151 and a bevel 2 152, and the bevel 2 152 is arranged to be inclined downward, and the bevel 2 152 can be moved to the discharge channel 6 by rotating the eccentric shaft 9, and the movable tooth plate 12 at the lower part of the concave corner 15 is located between the multiple fixed tooth plates 2 14 arranged at intervals.

[0028] In this embodiment, a material guide plate 16 and a material guide plate 2 17 are provided at the feed port 5, and the material guide plate 16 and the material guide plate 2 17 are respectively fixedly installed on the upper part of the fixed jaw 2 and the movable jaw 4 by screws. The material guide plate 16 and the material guide plate 2 17 are in a funnel shape that is wide at the top and narrow at the bottom. The material guide plate 16 and the material guide plate 2 17 are provided to facilitate the flow of materials between the movable jaw 4 and the fixed jaw 2. The movable jaw 4 and the fixed jaw 2 are inclined in the same direction, the middle position of the movable tooth plate 12 protrudes toward the discharge channel 6, and the concave corner 15 is located at the protrusion of the movable tooth plate 12.

[0029] In this embodiment, a sieve plate 18 is provided at the lower left side of the discharge channel 6, and the sieve plate 18 is inclined upward from left to right, and a vibration motor 19 is fixedly installed on the lower side of the sieve plate 18 by screws. Figure 6 As shown, an elastic device 20 is provided at one end of the sieve plate 18 close to the fixed jaw 23, and the elastic device 20 is a spring. A support plate is welded on the left side of the fixed jaw 23, and a slot is provided on the support plate. One end of the spring is clamped in the slot and the other end abuts against the lower side of the sieve plate 18.

[0030] In this embodiment, a support rod 21 is provided on the left side of the shell 1, and an upper feeding device 22 is hinged on the support rod 21, and the upper feeding device 22 includes a sieve plate 221 hingedly connected to the upper end of the support rod 21 by a pin shaft, and the end of the sieve plate 221 away from the support rod 21 is arranged at the feed port 5, and a vibration motor 222 is installed on the lower side of the sieve plate 221 by screws. The middle position of the sieve plate 221 is a sieve, and a collecting plate 223 is provided below the position of the sieve in the sieve plate 221, and one end of the collecting plate 223 is hinged to the support rod 21 by a pin shaft, and a screening feed port is opened on the left side shell 1 of the sieve plate 18, and the end of the collecting plate 223 away from the support rod 21 is hinged to the left side of the sieve plate 18 by a detachable pin.

[0031] In this embodiment, when the eccentric shaft 9 rotates, the concave corner 15 does not completely overlap with a side surface of the fixed tooth plate 13 close to the movable jaw 4, and the steel bars after the concrete is crushed are clamped by the concave corner 15.

[0032] In this embodiment, the fixed tooth plate 13 and the fixed tooth plate 2 14 are integrally connected with a fixed tooth mounting plate 131 on the side away from the movable tooth plate 12, and the movable tooth plate 12 is integrally connected with a movable tooth mounting plate 121 on the side away from the fixed jaw 1 2 and the fixed jaw 2 3. The fixed tooth mounting plate 131 and the movable tooth mounting plate 121 are respectively detachably connected to the fixed jaw 1 2, the fixed jaw 2 3 and the movable jaw 4. The detachable connection method can be fixed with screws, which is convenient for the later replacement of easily worn parts.

[0033] In this embodiment, the eccentric shaft 9 is passed through the lower part of the movable jaw 4 to form a rotational connection with the movable jaw 4. The common jaw crusher is designed to be wide at the top and narrow at the bottom, and the lower part has a smaller movable range for crushing smaller materials. By arranging the eccentric shaft 9 at the lower part of the movable jaw 4, it is convenient for the eccentric shaft 9 to drive the lower part of the movable jaw 4 to move, thereby increasing the moving range of the lower part of the movable jaw 4, which is convenient for lifting the moving range of the concave corner 15.

[0034] In this embodiment, the iron remover 7 includes a magnet 71 and a conveyor belt 72. The driving motor of the conveyor belt 72 is fixed to the outside of the outer shell 1 by screws. The output end of the driving motor is keyed to the roller of the conveyor belt 72. The magnet 71 is located in the interlayer at one end of the conveyor belt 72. One end of the conveyor belt 72 with the magnet 71 is located on the upper left side of the discharge channel 6, and the end of the conveyor belt 72 away from the magnet 71 passes through the ejection port 8 and extends to the outside of the outer shell 1.

[0035] In this embodiment, the sliding device 11 includes a sliding rod 111, a sleeve 112, an elastic member 113 and a rotating shaft 114. One end of the sliding rod 111 is integrally connected with a hinge head 1101, and the other end is integrally connected with a slider 1102. The hinge head 1101 is hinged to the movable jaw 4 by penetrating a pin shaft. The slider 1102 is slidably connected in the sleeve 112. The elastic member 113 is located in the sleeve 112 and its two ends respectively abut against the sleeve 112 and the slider 1102. Rotating shaft 114 holes are opened at both ends of the outer shell 1. The two ends of the rotating shaft 114 are inserted into the rotating shaft 114 holes and are rotatably connected to the outer shell 1. The sleeve 112 is welded and fixed to the rotating shaft 114.

[0036] When the present invention is in operation, the flywheel is driven to rotate by the driving motor. Figure 1 As shown, at this time, when the flywheel rotates clockwise, the flywheel drives the eccentric shaft 9 to rotate, and the rotation of the eccentric shaft 9 drives the movable jaw 4 to do eccentric movement around the eccentric shaft 9, and the construction waste is transported to the sieve plate 221, and the vibration motor 222 on the lower side of the sieve plate 221 is turned on, so that the concrete blocks are downward. When passing through the middle screen, the smaller materials fall into the collecting plate 223 below, and the vibration motor 19 is started. The collecting plate 223 is driven to vibrate through the sieve plate 18, so that the materials fall onto the sieve plate 18, and the iron remover 7 is started. If the sieve plate 221 screens out iron waste, the magnet 71 in the iron remover 7 adsorbs the iron waste on the conveyor belt 72, and the conveyor belt 72 rotates to throw the iron waste through the throwing port 8. After the concrete blocks on the sieve plate 221 enter the interior of the shell 1 from the feed port 5, as shown in FIG. Figure 2 As shown, after the flywheel drives the eccentric shaft 9 to rotate, the movable jaw 4 approaches the fixed jaw 1 2 and the fixed jaw 2 3, and the movable jaw 4 drives the movable tooth plate 12 to squeeze the concrete block onto the fixed tooth plate 1 13 to complete the initial crushing, as shown in FIG. Figure 1As shown in FIG. 1 , the movable jaw 4 moves downward and away from the fixed tooth plate 1 13. At this time, a part of the initially crushed concrete blocks falls. Since the fixed tooth plate 2 14 and the movable tooth plate 12 are spaced apart, the roughly crushed concrete blocks will be blocked by the fixed tooth plate 2 14 and the movable tooth plate 12. Figure 1 As shown, at this time, the coarsely crushed concrete block falls into the position between the concave corner 15 and the movable tooth plate 12, and continues to make eccentric movement under the influence of the eccentric shaft 9 through the movable jaw 4. At this time, the concrete block falling into the concave corner 15 is lifted up by the movable tooth plate 12 and approaches the lower part of the fixed tooth plate 13, and is squeezed by the lower part of the fixed tooth plate 13 to be crushed for the second time. At this time, if the concrete contains steel bars, the concrete block on the steel bars is completely crushed. Because the movable tooth plate 12 and the fixed tooth plate 13 are spaced apart, as shown in FIG. Figure 2 As shown, when the movable tooth plate 12 at the lower part of the concave corner 15 passes through the lower part of the fixed tooth plate 13, the lower part of the fixed tooth plate 13 continuously pushes the crushed steel bars to the discharge channel 6, and repeats the above action. During the eccentric movement of the movable jaw 4, the crushed steel bars continuously enter the discharge channel 6 along the bevel 152, and the metal waste entering the discharge channel 6 will be discharged through the iron remover 7, and the fine concrete material produced by the crushing will be discharged downward through the gap between the fixed tooth plate 13, the fixed tooth plate 2 14 and the movable tooth plate 12. Restricted by the gap between the fixed tooth plate 13, the fixed tooth plate 2 14 and the movable tooth plate 12, the crushed concrete blocks are more uniform than those of the traditional jaw crusher. At the same time, a discharging conveyor belt can be arranged at the lower part of the construction waste crushing device to facilitate the transportation of crushed materials.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction waste crushing device, comprising a jaw crusher, characterized in that: The jaw crusher includes a shell, in which a fixed jaw 1, a fixed jaw 2 and a movable jaw are arranged, the fixed jaw 1 is arranged on the upper part of the fixed jaw 2, the movable jaw is located on the right side of the fixed jaw 1 and the fixed jaw 2, a feed port is arranged on the upper shell of the fixed jaw 1 and the movable jaw, a discharge channel is arranged between the fixed jaw 1 and the fixed jaw 2, an iron remover is arranged on the upper left side of the discharge channel, a throwing port is arranged on the side of the shell, the iron remover extends to the outside of the shell through the throwing port, the movable jaw is rotatably connected to an eccentric shaft, the eccentric shaft is rotatably connected to both ends of the shell, one end of the eccentric shaft is connected to a driving device, a sliding device is hinged on the rear side of the movable jaw, and the movable jaw is close to the fixed jaw. A plurality of movable tooth plates are arranged longitudinally on one side of the fixed jaw 1 and the fixed jaw 2, and a plurality of fixed tooth plates 1 and a fixed tooth plate 2 are respectively arranged on the side of the fixed jaw 1 and the fixed jaw 2 close to the movable jaw, and the plurality of fixed tooth plates 1 and the fixed tooth plate 2 are arranged at intervals from the movable tooth plate, and a concave corner is arranged in the middle of the movable tooth plate, and the concave corner is located on the side of the movable tooth plate close to the fixed tooth plate, and the concave corner includes a hypotenuse 1 and a hypotenuse 2, and the hypotenuse 2 is arranged to be inclined downward, and the hypotenuse 2 can be moved to the discharge channel by rotating the eccentric shaft, and when the eccentric shaft rotates, the concave corner does not completely overlap with the side of the fixed tooth plate 1 close to the movable jaw, and the movable tooth plate at the lower part of the concave corner is located between the plurality of fixed tooth plates 2 arranged at intervals.

2. The construction waste crushing device according to claim 1, characterized in that: A material guide plate 1 and a material guide plate 2 are provided at the feed port, and a funnel shape that is wide at the top and narrow at the bottom is formed between the material guide plate 1 and the material guide plate 2. The movable jaw and the fixed jaw are inclined in the same direction, and the middle position of the movable tooth plate protrudes toward the discharge channel, and the concave corner is located at the protrusion of the movable tooth plate.

3. The construction waste crushing device according to claim 1, characterized in that: A sieve plate 1 is arranged at the lower left part of the discharge channel, and the sieve plate 1 is inclined upward from left to right. A vibration motor 1 is arranged on the lower side of the sieve plate 1, and an elastic device 1 is arranged at one end of the sieve plate 1 close to the fixed jaw 2.

4. The construction waste crushing device according to claim 3 is characterized in that: A support rod is provided on the left side of the shell, and an upper feeding device is hinged on the support rod, and the upper feeding device includes a second sieve plate hinged to the upper end of the support rod, and one end of the second sieve plate away from the support rod is arranged at the feed port, and a vibration motor is provided on the lower side of the second sieve plate, and a collecting plate is provided below the second sieve plate, and one end of the collecting plate is hinged to the support rod. A screening feed port is opened on the left side shell of the sieve plate one, and one end of the collecting plate away from the support rod is hinged to the left side of the sieve plate one.

5. The construction waste crushing device according to claim 1, characterized in that: The fixed tooth plate 1 and the fixed tooth plate 2 are integrally connected with a fixed tooth mounting plate on one side away from the movable tooth plate, and the movable tooth plate is integrally connected with a movable tooth mounting plate on one side away from the fixed jaw 1 and the fixed jaw 2. The fixed tooth mounting plate and the movable tooth mounting plate are detachably connected to the fixed jaw 1, the fixed jaw 2 and the movable jaw respectively.

6. The construction waste crushing device according to claim 1, characterized in that: The eccentric shaft is passed through the lower part of the movable jaw and is rotatably connected with the movable jaw.

7. The construction waste crushing device according to claim 1, characterized in that: The iron remover includes a magnet and a conveyor belt, wherein the magnet is located in a layer at one end of the conveyor belt, the end of the conveyor belt with the magnet is located above the left side of the discharge channel, and the end of the conveyor belt away from the magnet extends to the outside of the shell through the discharge port.

8. The construction waste crushing device according to claim 1, characterized in that: The sliding device includes a sliding rod, a sleeve, an elastic member and a rotating shaft. A hinged head is provided at one end of the sliding rod, and a slider is provided at the other end. The hinged head is hinged to the movable jaw. The slider is slidably connected in the sleeve. The elastic member is located in the sleeve and its two ends respectively abut the sleeve and the slider. The two ends of the rotating shaft are rotatably connected to the outer shell, and the sleeve is fixed on the rotating shaft.

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