Building material garbage recycling device

Abstract

The invention relates to the technical field of building material garbage crushing, in particular to a building material garbage recycling device, which solves the technical problems of material blockage and inconvenience in cleaning in the operation process of a traditional crushing roller, and comprises a machine body and a crushing roller arranged in the machine body, and a plurality of crushing teeth protruding outwards are mounted on the crushing roller; a cavity is formed in the crushing roller, an inner shaft coaxial with the crushing roller is mounted in the cavity, and the inner shaft can move in the axial direction of the crushing roller; a plurality of through grooves used for installing the smashing teeth are formed in the roller wall of the smashing roller, the through grooves communicate with the cavity, and the smashing teeth are installed in the through grooves and can slide along the through grooves; a stress block is arranged at one end, close to the inner shaft, of each crushing tooth, and a driven part is arranged on each stress block; a driving part is arranged on the inner shaft, and when the inner shaft moves in the axial direction of the crushing roller, the driving part on the inner shaft drives the driven part on the stress block to move so as to adjust the outward protruding length of the crushing teeth.

Description

Technical Field

[0001] The present invention relates to the technical field of building material waste crushing, and particularly to a device for recycling and reusing building material waste. Background Art

[0002] With the continuous acceleration of the urbanization process, the generation amount of construction waste is increasing day by day. Construction waste mainly includes waste concrete blocks, bricks, stones, wood, metals, and various decoration waste materials, etc. If these construction wastes are not properly treated, they will not only occupy a large amount of precious land resources, but also may cause serious pollution to the surrounding environment, such as soil pollution, water pollution, etc. Therefore, efficient treatment of construction waste has become an important problem to be solved urgently in the sustainable development of cities.

[0003] In the current field of construction waste treatment, using a rotating crushing roller for crushing is a common method. Usually, crushing teeth are fixedly arranged on the crushing roller, and through the high-speed rotation of the crushing roller, the crushing teeth are driven to crush the construction waste. However, in the actual crushing process, the following deficiencies exist in this traditional crushing device:

[0004] Due to the wide source and complex composition of construction waste, in the case of too much filling or too hard construction waste, the phenomenon of material jamming is very likely to occur. The jamming positions are usually concentrated between the crushing teeth of the two crushing rollers, or between the crushing teeth and the inner wall of the crushing device.

[0005] Since the traditional crushing teeth are fixedly arranged on the crushing roller, or as disclosed in a device for recycling and reusing building material waste with the publication number of CN119158647A, the crushing teeth are detachably installed on the crushing roller. Once material jamming occurs, the cleaning work is extremely difficult, and the crushing teeth cannot be disassembled either.

[0006] At present, some users will use tools such as crowbars to try to pry out or crush and take out the construction waste stuck in the gap. However, this operation method is not only inefficient, but also extremely easy to damage the crushing teeth and the outer wall of the crushing roller during the prying and crushing process, thereby shortening the overall service life of the equipment.

[0007] In summary, the installation method of the crushing teeth on the traditional crushing roller causes inconvenience in cleaning when dealing with construction waste, seriously affecting the efficiency of the construction waste crushing work. There is an urgent need for a new technical solution to solve these problems. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the present invention provides a device for recycling and reusing building material waste, which solves the technical problems of material jamming and inconvenient cleaning that occur during the operation of the traditional crushing roller.

[0009] To achieve the above object, the present invention provides the following technical solution: A device for recycling construction material waste, comprising:

[0010] A body, on which a feed inlet is provided, and a discharge port is provided at the bottom of the body;

[0011] A crushing roller, arranged inside the body, and a number of outwardly protruding crushing teeth are installed on the crushing roller;

[0012] A driving device, installed on the body, for driving the crushing roller to rotate to crush the material;

[0013] A cavity is formed inside the crushing roller, and an inner shaft coaxial with the crushing roller is installed in the cavity, and the inner shaft can move along the axial direction of the crushing roller;

[0014] A number of through grooves for installing the crushing teeth are formed on the roller wall of the crushing roller, the through grooves are communicated with the cavity, the crushing teeth are installed inside the through grooves, and the crushing teeth can slide along the through grooves;

[0015] One end of each crushing tooth close to the inner shaft is provided with a stress block, and each stress block is provided with a driven part;

[0016] A driving part is arranged on the inner shaft. When the inner shaft moves along the axial direction of the crushing roller, the driving part on the inner shaft drives the driven part on the stress block to move, so as to adjust the length of the crushing teeth protruding outwards.

[0017] Further, the length L2 of the crushing teeth is greater than the maximum distance L1 between the protruding ends of the crushing teeth and the outer wall of the crushing roller.

[0018] Further, the driving part of the inner shaft is a driving groove distributed along the circumferential direction of the outer wall of the inner shaft and recessed downwards, the driving groove has a sloping driving surface, the end of the stress block is inserted into the driving groove, and the driven part is a stress surface obliquely arranged on the end surface of the stress block.

[0019] Further, a transverse limiting rod is arranged in the through groove, a limiting groove for inserting the limiting rod is formed on the crushing tooth, and the limiting rod and the limiting groove cooperate to prevent the crushing tooth from slipping out of the through groove.

[0020] Further, the driving part of the inner shaft is a driving shaft installed on the inner shaft, the driving shaft is installed in a groove distributed along the circumferential direction of the outer wall of the inner shaft and recessed downwards, the stress part is a sliding groove obliquely arranged on the stress block, and the driving shaft penetrates through the sliding groove.

[0021] Further, a connecting piece is fixedly arranged at the end of the inner shaft.

[0022] Further, a driving device is installed on the body for driving the inner shaft to move along the axial direction of the crushing roller. A sleeve is connected to the driving device and sleeved outside the connecting piece. An inner cavity for accommodating the connecting piece is provided inside the sleeve. Both sides of the sleeve have force-bearing walls. One side force-bearing wall is connected to the driving device, and a through-hole for the inner shaft to pass through is provided on the other side force-bearing wall. The connecting piece is installed inside the inner cavity.

[0023] Further, rollers are installed on the inner walls of the force-bearing walls on both sides of the sleeve, and the rollers are distributed along the circumferential direction of the end face of the force-bearing wall; the distance L3 between the rollers on the force-bearing walls on both sides is greater than the thickness L4 of the connecting piece.

[0024] Further, the connecting piece is a columnar body, and an external thread is provided on the outer wall of the connecting piece; one end of the crushing roller is fixedly connected with a connecting cylinder coaxial with it, and a hollow twisting cylinder is rotatably connected to the connecting cylinder. An internal thread matching the external thread of the connecting piece is provided on the inner wall of the twisting cylinder; by rotating the twisting cylinder, the inner thread of the twisting cylinder and the external thread of the connecting piece act on each other to drive the inner shaft to move along the axial direction of the crushing roller.

[0025] Further, a first twisting member is provided on the outer wall of the connecting cylinder, and a second twisting member is provided on the outer wall of the twisting cylinder.

[0026] Compared with the prior art, the present invention provides a building material waste recycling device, which has the following beneficial effects:

[0027] In this building material waste recycling device, through the settings of the inner shaft, the force-bearing block, the driving part and the driven part, when a material jamming occurs in the device, only by driving the inner shaft to move along the axial direction of the crushing roller, the length of the crushing teeth protruding outwards can be shortened. Thus, the distance between the crushing teeth and the crushing teeth on the adjacent crushing roller and between the crushing teeth and the inner wall of the device is effectively increased. Compared with the traditional fixedly connected crushing teeth, there is no need to use tools such as crowbars that are prone to damage the equipment for difficult cleaning; compared with the detachable connection, there is no need for cumbersome disassembly steps. The material can be easily taken out from the jammed position, greatly simplifying the cleaning process, greatly improving the cleaning efficiency, and further enabling the equipment to return to the normal working state faster, reducing the downtime and improving the working efficiency.

[0028] And there is no need to use traditional tools such as crowbars to difficultly pry out or crush and take out the construction waste stuck in the gap, effectively avoiding the direct damage to the equipment by tools such as crowbars and extending the overall service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0030] Figure 2 Schematic three - dimensional structure diagram of the crushing roller of the present invention;

[0031] Figure 3 Schematic cross - sectional structure diagram of the crushing roller of the present invention;

[0032] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged partial structure at position A shown in the present invention;

[0033] Figure 5 Schematic cross - sectional structure diagram of the crushing roller of the present invention, wherein the axial movement of the inner shaft causes the crushing teeth to retract;

[0034] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged partial structure at position B shown in the present invention;

[0035] Figure 7 Schematic three - dimensional structure diagram of the crushing roller of the present invention, wherein no crushing teeth are installed on the crushing roller;

[0036] Figure 8 Schematic cross - sectional structure diagram of the crushing roller of the present invention, wherein no crushing teeth are installed on the crushing roller;

[0037] Figure 9 Schematic three - dimensional structure diagram of the crushing teeth of the present invention;

[0038] Figure 10 Schematic three - dimensional structure diagram of the crushing roller of the present invention, wherein it is driven by the cooperation of the driving shaft and the sliding groove;

[0039] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged partial structure at position C shown in the present invention;

[0040] Figure 12 Schematic cross - sectional structure diagram of the present invention, wherein it is driven by the first embodiment;

[0041] Figure 13 Schematic three - dimensional structure diagram of the present invention, wherein it is driven by the first embodiment;

[0042] Figure 14 Schematic three - dimensional structure diagram of the partial cross - section of the part of the driving device connected with the sleeve of the present invention;

[0043] Figure 15 Schematic three - dimensional partial cross - sectional structure diagram of the sleeve of the present invention;

[0044] Figure 16 Schematic three - dimensional structure diagram of the present invention, wherein it is driven by the second embodiment;

[0045] Figure 17 This is a schematic cross-sectional structure diagram of the present invention, in which, it is driven through the second embodiment;

[0046] Figure 18 This is a schematic exploded three-dimensional structure diagram of a part of the present invention, in which, it is driven through the second embodiment;

[0047] Figure 19 This is a schematic partial cross-sectional structure diagram of the present invention, in which, it is driven through the second embodiment.

[0048] In the figure: 1, machine body; 2, feed inlet; 3, discharge outlet; 4, crushing roller; 5, connecting shaft; 6, inner shaft; 7, crushing teeth; 8, bushing; 9, through groove; 10, speed reducer; 11, driving device; 12, support frame; 13, base; 14, stress block; 15, driving groove; 16, groove; 17, driving surface; 18, stress surface; 19, driving shaft; 20, sliding groove; 21, limiting rod; 22, limiting groove; 23, connecting piece; 24, driving equipment; 25, sleeve; 26, stress wall; 27, roller; 28, through hole; 29, inner cavity; 30, connecting cylinder; 31, screwing cylinder; 32, flange body; 33, installation groove; 34, screwing piece one; 35, screwing piece two. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] Please refer to Figures 1 - 4 , a building material waste recycling device of the present invention includes a machine body 1, and the outer wall of the machine body 1 is connected with a support frame 12, which plays a role in supporting the machine body 1. A base 13 is provided at the bottom of the support frame 12, which can increase the contact area with the ground, make the whole device placed more stably, improve the stability, and ensure the stable operation of the device. A feed inlet 2 and a discharge outlet 3 are provided on the machine body 1. The feed inlet 2 is usually arranged at the top of the machine body 1 for inputting building material waste, and the discharge outlet 3 is usually arranged at the bottom of the machine body 1 for discharging the crushed materials. A crushing roller 4 is installed in the machine body 1, and crushing teeth 7 protruding outward at one end are installed on the crushing roller 4. When the crushing roller 4 rotates at a high speed, the crushing teeth 7 on the crushing roller 4 effectively crush the input construction waste, can effectively break the construction waste, and crush the large pieces of materials into small pieces, meeting the requirements of the recycled materials for the particle size.

[0051] A driving device 11 is installed on the machine body 1, whose function is to provide power for the high-speed rotation of the crushing roller 4. The driving device 11 drives the crushing roller 4 to rotate at a high speed, and the crushing teeth 7 on the crushing roller 4 effectively crush the input construction material waste. The driving device 11 can adopt driving devices such as driving motors, diesel engines, and hydraulic motors.

[0052] Driving motor: It has the advantages of rapid start, stable operation, low noise, and easy control. It can accurately regulate the rotation speed of the crushing roller 4 to adapt to different crushing requirements.

[0053] Diesel engine: It has strong power and is suitable for some scenarios with high power requirements and complex working environments. Even in areas where power supply is inconvenient, it can operate stably, continuously output power for the high-speed rotation of the crushing roller 4, and ensure the efficient crushing of construction waste.

[0054] Hydraulic motor: It can output torque and rotation speed under the action of high-pressure oil. It has the characteristics of large power density, large torque, and stepless speed regulation, and is suitable for use in some construction material waste crushing devices that require large torque and high speed regulation requirements.

[0055] Such as Figure 2 、 3 As shown in Figures 7 and 8, a connecting shaft 5 is provided at one end of the crushing roller 4, and the connecting shaft 5 is firmly connected to the rotating end of the driving device 11. The power generated by the driving device 11 is transmitted to the crushing roller 4 through the connecting shaft 5 to drive it to rotate at a high speed, thereby realizing the crushing operation of construction waste. At the other end of the crushing roller 4, a bushing 8 is provided. The inside of the bushing 8 is hollow and is for the inner shaft 6 to pass through. The bushing 8 not only plays a certain supporting and protecting role for the inner shaft 6, but also ensures the stability and smoothness of the inner shaft 6 when moving along the axial direction of the crushing roller 4. The outer walls of the connecting shaft 5 and the sleeve 25 are both rotatably connected to the machine body 1. The outer walls of the connecting shaft 5 and the sleeve 25 are rotatably connected to the machine body 1 through bearings, which can reduce the frictional resistance during the rotation of the connecting shaft 5 and the bushing 8.

[0056] There are various connection methods for power transmission between the driving device 11 and the connecting shaft 5. First, the rotating end of the driving device 11 can be directly connected to the connecting shaft 5, enabling direct power transmission and achieving efficient power connection. Second, the power can be transmitted through the speed reducer 10. The speed reducer 10 can adjust the power, reducing the speed while increasing the torque to meet the diverse requirements for the power output of the crushing roller 4 under different working conditions. Third, a connection method using a belt and a pulley is adopted. This method has the advantages of simple structure, low cost, stable operation, and vibration buffering. The power is transmitted through the friction between the belt and the pulley, realizing the power transmission between the driving device 11 and the connecting shaft 5. Fourth, gears can also be used for power transmission. Gear transmission has the advantages of accurate transmission ratio, high efficiency, compact structure, reliable operation, and long service life. Through the meshing of different gears, the power of the driving device 11 is accurately transmitted to the connecting shaft 5 to ensure the stable operation of the crushing roller 4.

[0057] As Figures 3 - 6 shown, a cavity is provided inside the crushing roller 4, and an inner shaft 6 is coaxially installed in the cavity. The inner shaft 6 can move along the axial direction of the crushing roller 4. Figure 5 The arrow in the X direction in

[0058] As Figures 7 - 9 shown, a number of through slots 9 are distributed on the roller wall of the crushing roller 4. The through slots 9 are provided for installing the crushing teeth 7 and are connected to the internal cavity. The lengths of the crushing teeth 7 are adapted (the lengths are elaborated in detail below). The crushing teeth 7 are installed inside the through slots 9 and can slide along the inner wall of the through slots 9. A force-bearing block 14 is fixedly provided at one end of each crushing tooth 7 close to the inner shaft 6.

[0059] As Figures 3 - 4 shown, in order to realize the axial movement of the inner shaft 6 along the crushing roller 4 to adjust the length of the crushing teeth 7 protruding outwards, a number of downwardly concave driving slots 15 are distributed along the circumferential direction of the outer wall of the inner shaft 6. Each driving slot 15 is provided with a sloping driving surface 17, and the inclination angle of the driving surface 17 is precisely designed. One end of the force-bearing block 14 can be inserted into the driving slot 15. On the end surface of the force-bearing block 14 inserted into the driving slot 15, a force-bearing surface 18 is inclined. The inclination angle of the force-bearing surface 18 is adapted to the inclination angle of the driving surface 17 in the driving slot 15. When the inner shaft 6 moves axially, the driving surface 17 in the driving slot 15 can closely fit with the force-bearing surface 18 on the force-bearing block 14, and through the interaction between the two, the force-bearing block 14 moves, and then the crushing teeth 7 installed in the through slots 9 slide along the inner wall of the through slots 9, realizing the adjustment of the length of the crushing teeth 7 protruding outwards.

[0060] When the inner shaft 6 moves axially so that the highest point in the drive groove 15 supports the bottom end of the force-bearing block 14, the length of the crushing teeth 7 protruding outwards reaches the maximum value at this time, and it remains relatively stable in the through groove 9. When crushing operations are carried out in this state, the crushing teeth 7 can directly and efficiently crush construction waste by virtue of their maximum extension length.

[0061] However, when the inner shaft 6 moves axially in the reverse direction, the relative positions of the drive groove 15 and the force-bearing block 14 change. Until the bottom end of the drive groove 15 corresponds to the bottom end of the force-bearing block 14, the crushing teeth 7 obtain the space to move inwards in the through groove 9. At this time, the length of the crushing teeth 7 protruding outwards can be reduced, that is, they can be retracted inwards. This adjustment function plays a key role in dealing with the problem of stuck materials. Once a stuck material phenomenon occurs, by applying an external force to retract the crushing teeth 7 inwards, the distance between the crushing teeth 7 and other surrounding components or materials can be effectively reduced, so that the materials stuck in them can be more easily cleared out.

[0062] As Figures 3 - 6 shown, a horizontal limiting rod 21 is provided in the through groove 9, and a limiting groove 22 for the limiting rod 21 to insert is provided on the crushing teeth 7. The limiting rod 21 is inserted into the limiting groove 22, and the cooperation between the limiting rod 21 and the limiting groove 22 limits the up and down position of the crushing teeth 7, that is, limits the maximum and minimum lengths of the protrusion of the crushing teeth 7, and further prevents the crushing teeth 7 from slipping out of the through groove 9.

[0063] Through the cooperation of the driving surface 17 of the drive groove 15 and the force-bearing surface 18 of the force-bearing block 14, the advantages are simple structure and excellent stability of power transmission, and it can crush relatively hard materials, such as stones and brick blocks.

[0064] In addition, the setting method of the driving part of the present invention is not limited to using the drive groove 15 with an inclined surface, and the driven part is not limited to the force-bearing block 14 with an inclined surface, and a curved surface structure can also be used to replace the driving part and the driven part. That is to say, the inclined surface of the drive groove 15 can be replaced with a curved surface, and the end surface of the force-bearing block 14 is also set as a curved surface. However, the design with an inclined surface is the preferred structure.

[0065] As Figures 10 - 11 shown, in order to realize the axial movement of the inner shaft 6 along the crushing roller 4 to adjust the length of the crushing teeth 7 protruding outwards, a drive shaft 19 can also be provided on the inner shaft 6, and an inclined chute 20 is provided on the force-bearing block 14, and the drive shaft 19 penetrates through the chute 20. When the inner shaft 6 moves axially, it drives the drive shaft 19 to move synchronously. Since the drive shaft 19 penetrates the inclined chute 20, the acting force of its movement causes the force-bearing block 14 to displace under the guiding action of the chute 20, and then drives the connected crushing teeth 7 to slide along the inner wall of the through groove 9, finally realizing the adjustment of the length of the crushing teeth 7 protruding outwards.

[0066] In order to make the structural connection between the crushing roller 4 and the inner shaft 6 closer and more stable, grooves 16 are arranged along the circumferential direction of the outer wall of the inner shaft 6 and are recessed downward. Due to the arrangement of the grooves 16, the driving shaft 19 can be installed in the grooves 16, so that the outer wall of the inner shaft 6 can be closely attached to the cavity of the crushing roller 4, that is, the outer diameter of the inner shaft 6 and the inner diameter of the cavity of the crushing roller 4 are highly matched, and the inner shaft 6 moves more stably in the cavity.

[0067] Through the cooperation of the driving shaft 19 and the sliding groove 20 on the force-bearing block 14, its advantage is that the response speed of power transmission is remarkable, and it can be used for crushing materials such as glass and wood that are easy to crush.

[0068] As Figure 3 shown, it further needs to be explained that the length L2 of the crushing teeth 7 is greater than the maximum distance L1 from the protruding end of the crushing teeth 7 to the outer wall of the crushing roller 4. The crushing teeth 7 themselves have a certain length. When the crushing teeth 7 protrude outward to the longest state, a part of the crushing teeth 7 is still located inside the through groove 9. The inner wall of the through groove 9 and the outer wall of the crushing teeth 7 match each other in size and shape.

[0069] When the equipment is running for crushing operations, the crushing teeth 7 are subjected to the reaction force from the materials to be crushed. At this time, at the part of the crushing teeth 7 located in the through groove 9, its outer wall will be in close contact with the inner wall of the through groove 9, and the inner wall of the through groove 9 can exert a supporting force on the outer wall of the crushing teeth 7 to balance the reaction force given by the materials to be crushed to the crushing teeth 7. Due to the supporting effect of the inner wall of the through groove 9 on the outer wall of the crushing teeth 7, the crushing teeth 7 will not shake, shift or break when bearing the reaction force of the materials, thereby improving the overall stability of the crushing teeth 7 during the working process and ensuring that the crushing operation can be carried out continuously, efficiently and stably.

[0070] As Figure 2 、 7 As shown in FIGS. 11 and 12, a connecting member 23 is connected to the end of the inner shaft 6 passing through the bushing 8, and the connecting member 23 is fixedly connected to the inner shaft 6. By applying an external force acting on the connecting member 23, the inner shaft 6 can be driven to move, and then the inner shaft 6 can move smoothly along the axial direction inside the crushing roller 4 to adjust the position (protruding length) of the crushing teeth 7.

[0071] The present invention now provides two embodiments for driving the inner shaft to move. These two embodiments have a wide range of applications, and are not only applicable to the present invention, but can also be used in other structures involving inner and outer shafts that require driving the inner shaft to move relative to the outer shaft.

[0072] As Figure 1 、 12As shown in Fig. -14, a first embodiment for driving the inner shaft 6. A driving device 24 is installed on the machine body 1 to provide power for driving the inner shaft 6 to move axially along the crushing roller 4. The driving device 24 can be an electric telescopic rod, a hydraulic rod, a cylinder, or other devices that can drive the inner shaft 6 to move, each having its unique advantages, and users can select according to actual needs.

[0073] Electric telescopic rod: Driven by electricity, it is easy to operate, can achieve precise stroke control, can accurately adjust the moving distance of the inner shaft 6, and adapt to the requirements of different crushing working conditions. Its response speed is fast, it can quickly complete the position adjustment of the inner shaft 6, improve the working efficiency of the equipment, and has a stable operation process, low noise, and strong adaptability to the working environment.

[0074] Hydraulic rod: Utilizes hydraulic oil to transmit pressure and outputs a powerful thrust, suitable for scenarios that require a large driving force, and can effectively overcome the large resistance during the movement of the inner shaft 6. It has good buffering performance, can smoothly push the inner shaft 6, and avoid impacts and vibrations during the movement, ensuring the stability and reliability of the equipment operation.

[0075] Cylinder: Uses compressed air as the power source, has a simple structure, low cost, and is easy to maintain. Its action is rapid, can quickly realize the telescopic movement of the inner shaft 6, and is especially suitable for working conditions with high requirements for response speed. At the same time, since gas is used as the working medium, it will not cause pollution and meets the environmental protection requirements.

[0076] As Figures 12 - 15 shown, a sleeve 25 is connected to the driving device 24. For example, the telescopic end of the cylinder is connected to the sleeve 25, and an inner cavity 29 for accommodating the connecting member 23 is provided inside the sleeve 25. The size and shape of the inner cavity 29 can ensure that the connecting member 23 is installed therein. Force - receiving walls 26 are respectively provided on both sides of the sleeve 25, and one of the force - receiving walls 26 forms a firm connection with the driving device 24, enabling the driving force generated by the driving device 24 to be effectively transmitted to the sleeve 25.

[0077] On the other force - receiving wall 26, a through - hole 28 for the inner shaft 6 to pass through is provided. The diameter of the through - hole 28 is greater than or equal to the outer diameter of the inner shaft 6. The connecting member 23 fixedly provided at the end of the inner shaft 6 is installed inside the inner cavity 29 of the sleeve 25. When the driving device 24 is started, the generated driving force is transmitted to the sleeve 25 through the force - receiving wall 26 connected to the driving device 24, thereby driving the overall movement of the sleeve 25. Since the connecting member 23 is installed in the inner cavity 29 of the sleeve 25 and the inner shaft 6 passes through the through - hole 28 on the other force - receiving wall 26 of the sleeve 25, the movement of the sleeve 25 will drive the connecting member 23 and the inner shaft 6 connected thereto, so that under the action of the force on the inner wall of the force - receiving wall 26, it moves smoothly along the axial direction of the crushing roller 4, and this method can move the inner shaft 6 without stopping the machine, thereby adjusting the protruding length of the crushing teeth 7.

[0078] On the inner walls of the force-bearing walls 26 on both sides of the sleeve 25, rollers 27 are evenly installed, and the rollers 27 are distributed along the circumferential direction of the end face of the force-bearing wall 26. The function of the rollers 27 is to effectively reduce the friction force. When the driving device 11 is in an unstopped state, when the outward protruding length of the crushing teeth 7 is reduced, the crushing roller 4 will rotate instantaneously when the crushing teeth 7 are shortened. Therefore, friction will be generated between the inner wall of the force-bearing wall 26 and the connecting member 23. Through the arrangement of the rollers 27, the sliding friction between the inner wall of the force-bearing wall 26 and the connecting member 23 is transformed into rolling friction. Since the rolling friction coefficient is much smaller than the sliding friction coefficient, the frictional resistance between components is effectively reduced. In this embodiment, the connecting member 23 is preferably a circular disc-shaped body. However, connecting members 23 of any shape and structure can be applied to the present invention.

[0079] As Figure 12 shown, the distance L3 between the rollers 27 on the force-bearing walls 26 on both sides is greater than the thickness L4 of the connecting member 23. When the driving device 24 drives the connecting member 23 to move with the sleeve 25, the rollers 27 on the inner wall of the force-bearing wall 26 contact the connecting member 23 and provide driving force to ensure the smooth axial movement of the inner shaft 6. When the inner shaft 6 does not need to be driven, due to the large distance between the rollers 27, the connecting member 23 can be placed between the two rollers 27 on both sides, and the connecting member 23 does not contact any of the rollers 27. When the crushing roller 4 rotates at a high speed and drives the connecting member 23 to rotate synchronously, and when the inner shaft 6 does not need to be driven to move, since the connecting member 23 has no contact with other devices, additional friction is avoided, the wear between components is greatly reduced, thereby improving the service life of the sleeve 25, reducing the maintenance cost, and ensuring the long-term stable and efficient operation of the equipment.

[0080] Compared with the prior art which is connected by bearings. In the connection mode between the driving device 24 and the inner shaft 6, the prior art often uses bearing connection to achieve the axial drive of the driving device 24 for the rotating inner shaft 6. Although this method can achieve the expected driving effect, there are obvious drawbacks.

[0081] When the crushing roller 4 rotates during operation, the connected bearing must also rotate synchronously. However, in actual working conditions, situations like material jamming do not occur frequently and may only appear once in a long time. But the bearing needs to rotate with the crushing roller 4 all the time, whether it is in the necessary operation stage such as dealing with material jamming or not. The frequent rotation exacerbates the wear of the bearing. Compared with the low-frequency requirement of actually cleaning material jamming, this unnecessary continuous operation greatly increases the wear degree of the bearing. With the continuous accumulation of wear, the replacement frequency of the bearing increases, which not only adds the maintenance workload, but also directly leads to a significant increase in the equipment cost.

[0082] In contrast, the spacing L3 between the rollers 27 on the load-bearing walls 26 on both sides of the present invention is greater than the thickness L4 of the connecting piece 23, which avoids this problem. While achieving efficient driving of the inner shaft 6 to move axially, it can effectively reduce component loss and equipment operating costs, thereby providing more reliable protection for the stable operation and long-term use of the equipment.

[0083] like Figures 16 - 19 As shown, in the second embodiment of driving the inner shaft 6 to move, in order to realize the movement of the inner shaft 6 along the axial direction of the crushing roller 4, the connecting member 23 is a columnar body, and the outer wall of the connecting member 23 is provided with an external thread; at one end of the crushing roller 4, a connecting cylinder 30 coaxial with it is fixedly connected through a shaft sleeve 8, and a screwing cylinder 31 with a hollow interior is rotatably connected to the connecting cylinder 30, and an internal thread matching the external thread of the connecting member 23 is provided on the inner wall of the screwing cylinder 31; by rotating the screwing cylinder 31, utilizing the interaction between the internal thread of the screwing cylinder 31 and the external thread of the connecting member 23, due to the spiral characteristics of the thread, during the rotation of the screwing cylinder 31, a propulsion force along the axial direction of the thread is generated. This propulsion force acts on the connecting member 23, and then drives the inner shaft 6 fixedly connected to the connecting member 23 to move along the axial direction of the crushing roller 4.

[0084] A screwing piece 34 is arranged on the outer wall of the connecting cylinder 30. The screwing piece 34 is arranged as a regular polygonal component similar to a nut shape. This regular polygonal structure can provide multiple planes for applying force. When the screwing piece 34 needs to be rotated, the user can easily use a tool such as a wrench to clamp it on the side of the regular polygon to prevent the crushing roller 4 from rotating. A screwing piece 2 35 is arranged on the outer wall of the screwing cylinder 31. The design of the screwing piece 2 35 can be arranged as a polygonal component similar to the screwing piece 1 34, and can also be designed as a polygonal groove. If the screwing piece 2 35 is a polygonal component, its operation method is the same as that of the screwing piece 1 34, and a tool can be used to apply force on its side to rotate it; if it is a polygonal groove, the user can select a tool with a suitable shape to be embedded in the groove, and drive the screwing piece 2 35 to rotate by rotating the tool. By setting the screwing member 1 34 and the screwing member 2 35, the operator can use a tool to apply torque to realize the relative rotation of the connecting cylinder 30 and the screwing cylinder 31, so as to adjust the axial movement of the inner shaft 6, thereby adjusting the outward protruding length of the crushing teeth 7. However, this type of adjustment requires stopping the machine for operation.

[0085] In order to realize the rotational connection between the connecting cylinder 30 and the screwing cylinder 31 and prevent the two from moving horizontally in the axial direction, a flange body 32 is arranged on the outer wall of the screwing cylinder 31, and correspondingly, a mounting groove 33 matching the flange body 32 is provided on the inner wall of the connecting cylinder 30. During installation, the flange body 32 is inserted into the mounting groove 33, and the flange body 32 can rotate along the circumference of the mounting groove 33. The connecting cylinder 30 and the screwing cylinder 31 can only rotate relative to each other, which effectively limits their displacement in the axial direction.

[0086] In addition, the structures of the two can also be reversed, that is, the inner wall of the screwing cylinder 31 is provided with a groove 16, and the flange body 32 is provided on the connecting cylinder 30. After the flange body 32 of the connecting cylinder 30 is embedded in the groove 16 of the inner wall of the screwing cylinder 31, the function that the connecting cylinder 30 and the screwing cylinder 31 can rotate relative to each other but cannot move axially can also be achieved.

[0087] In summary, when the construction material waste recycling and reuse device is used, the driving device 11 is turned on, and the driving device 11 drives the crushing roller 4 to rotate, and the construction material waste is put into the feeding port 2 on the machine body 1. As the crushing roller 4 rotates, the crushing teeth 7 installed on the crushing roller 4 rotate at a high speed. The high-speed rotating crushing teeth 7 strongly crush the input construction material waste, and through high-speed impact, tearing and other effects, large pieces of construction waste are broken into small pieces of materials, and the crushed materials are discharged from the discharge port 3, completing the crushing operation of the construction material waste.

[0088] During the operation of the equipment, if the material is stuck, the staff drives the inner shaft 6 to move along the axial direction of the crushing shaft. This operation is achieved through a specific driving mechanism, such as the above-mentioned electric telescopic rod, hydraulic rod, cylinder and other driving devices 24, or through the screw barrel 31 and the threaded cooperation of the connecting member 23 to achieve the movement of the inner shaft 6.

[0089] The movement of the inner shaft 6 causes the position of the crushing teeth 7 to change, and the outward protruding length of the crushing teeth 7 is reduced.

[0090] When the protruding length of the crushing teeth 7 is reduced, the distance between it and other components (such as the inner wall of the body 1, the crushing teeth 7 of the adjacent crushing roller 4, etc.) increases, and the originally stuck materials can fall out of the enlarged gap. The staff can clean up the fallen materials, eliminate the jamming fault, and restore the equipment to normal operation.

[0091] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for recycling and reusing construction material waste, comprising: A machine body (1), wherein a feed inlet (2) is provided on the machine body (1), and a discharge outlet (3) is provided at the bottom of the machine body (1); A crushing roller (4) is arranged in the machine body (1), and a plurality of crushing teeth (7) protruding outwards are mounted on the crushing roller (4); A driving device (11) is mounted on the machine body (1) and is used to drive the crushing roller (4) to rotate so as to crush the material; The invention is characterized in that: a cavity is provided inside the crushing roller (4), an inner shaft (6) coaxial with the crushing roller (4) is installed in the cavity, and the inner shaft (6) can move along the axial direction of the crushing roller (4); The roller wall of the crushing roller (4) is provided with a plurality of through grooves (9) for mounting crushing teeth (7), the through grooves (9) being connected to the cavity, the crushing teeth (7) being mounted inside the through grooves (9), and the crushing teeth (7) being able to slide along the through grooves (9); A force-bearing block (14) is provided at one end of each crushing tooth (7) close to the inner shaft (6), and a driven part (18; 20) is provided on each force-bearing block (14); The inner shaft (6) is provided with a driving part (17; 19). When the inner shaft (6) moves axially along the crushing roller (4), the driving part on the inner shaft (6) drives the driven part on the force-bearing block (14) to move, so as to adjust the outward protruding length of the crushing teeth (7).

2. The construction material waste recycling device according to claim 1, characterized in that: The length (L2) of the pulverizing teeth (7) is greater than the maximum distance (L1) between the protruding end of the pulverizing teeth (7) and the outer wall of the pulverizing roller (4).

3. The construction material waste recycling device according to claim 2 is characterized in that: The driving portion of the inner shaft (6) is a driving groove (15) which is distributed along the circumferential direction of the outer wall of the inner shaft (6) and is recessed downward. The driving groove (15) has a sloped driving surface (17). The end of the force-bearing block (14) is inserted into the driving groove (15). The driven portion is a force-bearing surface (18) which is arranged obliquely on the end surface of the force-bearing block (14).

4. The construction material waste recycling device according to claim 3 is characterized in that: A transverse limiting rod (21) is arranged in the through slot (9), and a limiting groove (22) is provided on the crushing tooth (7) for the limiting rod (21) to be inserted into. The limiting rod (21) cooperates with the limiting groove (22) to prevent the crushing tooth (7) from falling out of the through slot (9).

5. The construction material waste recycling device according to claim 2, characterized in that: The driving part of the inner shaft (6) is a driving shaft (19) installed on the inner shaft (6), and the driving shaft (19) is installed in a groove (16) distributed along the circumferential direction of the outer wall of the inner shaft (6) and recessed downward. The force-bearing part is a sliding groove (20) obliquely arranged on the force-bearing block (14), and the driving shaft (19) passes through the sliding groove (20).

6. The construction material waste recycling device according to claim 1, characterized in that: A connecting piece (23) is fixedly provided at the end of the inner shaft (6).

7. The construction material waste recycling device according to claim 6, characterized in that: The machine body (1) is provided with a driving device (24) for driving the inner shaft (6) to move axially along the crushing roller (4); the driving device (24) is connected with a sleeve (25) sleeved on the outside of the connecting member (23); the sleeve (25) is provided with an inner cavity (29) for accommodating the connecting member (23); the sleeve (25) has load-bearing walls (26) on both sides; the load-bearing wall (26) on one side is connected to the driving device (24); the load-bearing wall (26) on the other side is provided with a through hole (28) for the inner shaft (6) to pass through; the connecting member (23) is installed inside the inner cavity (29).

8. The construction material waste recycling device according to claim 7, characterized in that: Rollers (27) are installed on the inner walls of the load-bearing walls (26) on both sides of the sleeve (25), and the rollers (27) are distributed along the circumferential direction of the end faces of the load-bearing walls (26); the spacing (L3) between the rollers (27) on the load-bearing walls (26) on both sides is greater than the thickness (L4) of the connecting piece (23).

9. The construction material waste recycling device according to claim 6, characterized in that: The connecting member (23) is a columnar body, and the outer wall of the connecting member (23) is provided with an external thread; one end of the crushing roller (4) is fixedly connected to a connecting cylinder (30) coaxial therewith, and an internally hollow screwing cylinder (31) is rotatably connected to the connecting cylinder (30), and the inner wall of the screwing cylinder (31) is provided with an internal thread matching the external thread of the connecting member (23); by rotating the screwing cylinder (31), the inner shaft (6) is driven to move along the axial direction of the crushing roller (4) by utilizing the interaction between the internal thread of the screwing cylinder (31) and the external thread of the connecting member (23).

10. The construction material waste recycling device according to claim 9, characterized in that: A screwing piece 1 (34) is arranged on the outer wall of the connecting cylinder (30), and a screwing piece 2 (35) is arranged on the outer wall of the screwing cylinder (31).

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