A garbage crushing device for construction engineering management

Abstract

The application provides a garbage crushing equipment for construction engineering management, and relates to the technical field of construction waste crushing. The equipment comprises a counterweight wheel, an output sleeve coaxially arranged with the counterweight wheel, a plurality of extension pipes equally spaced apart and arranged on the counterweight wheel, a pressurizing rod slidably connected in the extension pipe, a rotating shaft arranged on the pressurizing rod, a roller rotatably arranged on the rotating shaft, a plurality of protruding blocks equally spaced apart and arranged on the side wall of the output sleeve, and the roller being attached to the protruding blocks, and a plurality of friction rings coaxially arranged on the side wall of the counterweight wheel. When the equipment encounters a jam or overload, the system can automatically convert into elastic transmission, effectively protecting the motor and the transmission system from damage. The intelligent adjustment capability not only significantly improves the adaptability and reliability of the equipment, but also greatly prolongs the service life of the equipment, reduces the maintenance frequency and cost.

Description

Technical Field

[0001] This invention relates to the field of construction waste crushing technology, and more specifically, to a waste crushing device for construction project management. Background Technology

[0002] In the current field of construction engineering management, waste crushing equipment is a key link in the treatment of construction waste. With the continuous improvement of environmental protection and resource recycling requirements in the construction industry, the demand for processing various types of construction waste is increasing. This includes a large amount of relatively soft but tough materials such as wood, plastic, and rubber. Due to their physical properties, these materials require crushing equipment to provide sufficiently high rotation speeds during the crushing process in order to achieve effective cutting and tearing effects and realize ideal crushing particle size and processing efficiency. However, the mainstream construction waste crushing equipment on the market generally adopts a direct hard-connection power transmission method, that is, the motor is directly connected to the crushing blades or rotor through a rigid transmission device. Although this hard-connection design is simple in structure and has high transmission efficiency in terms of power transmission, it lacks the necessary buffering and protection mechanisms, making the entire power system vulnerable to sudden load changes and unable to adapt to the actual working environment of complex composition and uneven hardness of construction waste.

[0003] In actual construction waste processing, due to uneven feeding or the presence of unexpected hard objects (such as metal components, concrete blocks, etc.), crushing equipment often faces the risk of momentary jamming or stalling. In rigid connection transmission systems, this sudden resistance is directly transmitted to the motor, causing overload operation of the power source. When the rotor or cutter is suddenly jammed, the motor will still try to maintain the rated speed output, resulting in a sudden surge in current, generating huge electromagnetic shocks and mechanical stress. This will not only trigger the motor's thermal protection device, but the overload will also accelerate the aging of the motor winding insulation layer, shorten the bearing life, and may even lead to motor burnout or mechanical transmission component breakage. Such equipment damage caused by jamming not only increases maintenance costs and downtime, but may also cause safety accidents, posing a potential threat to personnel on the construction site. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a waste shredding device for construction engineering management to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a waste shredding device for construction engineering management, comprising a fixed frame and a motor mounted on the fixed frame; further comprising a connecting mechanism, the connecting mechanism comprising a counterweight wheel and an output sleeve coaxially arranged on the counterweight wheel, a plurality of protruding tubes equally spaced on the counterweight wheel, a pressure rod slidably connected inside the protruding tubes, a rotating shaft mounted on the pressure rod, a roller rotatably mounted on the rotating shaft, a plurality of protrusions equally spaced on the side wall of the output sleeve, and the rollers abutting against the protrusions, a plurality of friction rings coaxially mounted on the side wall of the counterweight wheel, and a plurality of synchronizing blocks abutting against the side wall of the counterweight wheel; further comprising a crushing mechanism, the crushing mechanism comprising a crushing box fixedly mounted on the fixed frame, a drive shaft and a driven shaft rotatably mounted inside the crushing box, and the output sleeve connected to the drive shaft.

[0006] Preferably, the connecting mechanism further includes threaded rods threaded into the plurality of protruding tubes, each pressure rod having a spring mounted on it, the other end of the spring having a thrust bearing mounted on it, and the threaded rod pressing against the thrust bearing.

[0007] Preferably, multiple positioning strips are installed at equal intervals on the side wall of each pressure rod, and multiple positioning grooves are opened in each extension tube, with the positioning strips slidably connected in the positioning grooves.

[0008] Preferably, the motor is equipped with a drive shaft, an input wheel is coaxially mounted on the drive shaft, and an inner wheel is coaxially mounted inside the counterweight wheel.

[0009] Preferably, the output sleeve is equipped with multiple connecting rods, each of the multiple connecting rods is equipped with a limiting plate, each connecting rod is rotatably equipped with a follower wheel, one end of the multiple follower wheels is engaged with the inner wheel, the other end of the multiple follower wheels is engaged with the input wheel, and the two ends of the input wheel are respectively attached to the limiting plate and the output sleeve.

[0010] Preferably, each of the synchronization blocks has multiple friction grooves corresponding to the friction rings, multiple guide rods are installed on the outer wall of the output sleeve, and guide holes are provided on the synchronization blocks, with the guide rods slidably connected in the guide holes.

[0011] Preferably, each of the synchronization blocks has two push springs installed at its lower end, and the other ends of the multiple push springs abut against the outer wall of the output sleeve.

[0012] Preferably, the crushing mechanism further includes a plurality of crushing discs, which are respectively and alternately installed on the drive shaft and the driven shaft. Synchronous pulleys are installed on both the drive shaft and the driven shaft, and the two synchronous pulleys mesh with each other.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a waste shredding device for construction project management, which has the following beneficial effects: Traditional crushing equipment generally uses a rigid connection to directly transmit motor power to the crushing components. However, this equipment introduces a composite transmission system consisting of a counterweight wheel, output sleeve, and follower wheel. Under normal operating conditions, this connection exhibits rigid transmission, transmitting the high speed of the motor to the crushing components completely and efficiently, ensuring thorough crushing of flexible waste. When encountering jamming or overload, the system can automatically switch to elastic transmission, effectively protecting the motor and transmission system from damage. This intelligent adjustment capability not only significantly improves the adaptability and reliability of the equipment but also greatly extends its service life, reducing maintenance frequency and costs.

[0014] Secondly, precise torque control is achieved through the combination of springs and friction between the counterweight wheel and the output sleeve. During normal operation, the springs provide basic pressure, while as the rotational speed increases, the friction between the friction rings and the friction grooves gradually increases, forming a "speed-adaptive" connection strength. This design enables the equipment to have a sufficiently strong power transmission capability when operating at high speeds, while flexibly disengaging from the rigid connection state when encountering resistance. In particular, the uniform distribution design of multiple friction rings ensures the balanced distribution and stable transmission of friction, avoids local stress concentration, and improves the durability and reliability of the connection mechanism.

[0015] Third, the roller-protrusion contact mechanism of this equipment provides overload judgment and response capabilities. When encountering hard objects or impurities that are difficult to break during the crushing process, causing the output sleeve to be blocked, the roller will immediately begin to slide along the protrusion. This design can not only respond quickly to load changes, but also ensure that the motor continues to run without being forcibly stopped.

[0016] Fourth, through the sliding connection between the guide hole and the guide rod on the synchronizing block, combined with the auxiliary thrust of the push spring, the system can automatically adjust the magnitude of the friction force according to the rotation speed. When the equipment is running at high speed, the centrifugal force pushes the synchronizing block to move outward, increasing the contact pressure between the friction ring and the friction groove, and providing a stronger power transmission capability. When the speed decreases or jamming occurs, the pressure decreases accordingly, making it easier for the system to release the hard connection. This self-adjusting characteristic does not require external control.

[0017] In summary, this construction waste shredding equipment achieves a balance between efficient crushing and mechanical protection through its connection mechanism and torque control. It is particularly suitable for processing construction waste with complex composition and uneven hardness. It not only solves the problem of motor damage caused by jamming during the processing of traditional equipment, but also improves energy utilization efficiency through intelligent torque transmission mechanism, reduces the risk of equipment damage and maintenance costs, and provides a safer, more efficient and reliable technical solution for the resource-based treatment of construction waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste shredding device for construction engineering management according to the present invention; Figure 2 This is a schematic diagram of the structure of the counterweight wheel and output sleeve in this invention; Figure 3 This is a side view of the counterweight wheel and output sleeve in this invention. Figure 4 In this invention Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 This is a schematic diagram of the threaded rod and spring in this invention; Figure 6 This is an exploded cross-sectional view of the counterweight wheel and the output wheel in this invention; Figure 7 This is a schematic diagram of the connecting rod and output sleeve in this invention; Figure 8 This is a schematic diagram of the structure of the counterweight wheel and the inner wheel in this invention; Figure 9 This is a schematic diagram of the structure of the inlet / outlet wheel and the follower wheel in this invention.

[0019] In the diagram: 11. Fixed frame; 12. Motor; 21. Counterweight wheel; 22. Output sleeve; 23. Extension tube; 24. Pressure rod; 25. Rotating shaft; 26. Roller; 27. Protrusion block; 28. Friction ring; 29. ​​Synchronizing block; 31. Crushing box; 32. Drive shaft; 33. Driven shaft; 34. Crushing disc; 35. Synchronizing pulley; 210. Threaded rod; 211. Spring; 212. Thrust bearing; 213. Positioning bar; 214. Positioning groove; 215. Drive shaft; 216. Input wheel; 217. Internal wheel; 218. Connecting rod; 219. Limiting plate; 220. Follower wheel; 221. Friction groove; 222. Guide rod; 223. Guide hole; 224. Push spring. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0023] Please see Figures 1 to 9 A waste shredding device for construction project management includes a fixed frame 11 and a motor 12 mounted on the fixed frame 11; it also includes a connecting mechanism, which includes a counterweight wheel 21 and an output sleeve 22 coaxially arranged on the counterweight wheel 21. Multiple extension tubes 23 are evenly spaced on the counterweight wheel 21, and a pressure rod 24 is slidably connected inside the extension tubes 23. A rotating shaft 25 is mounted on the pressure rod 24, and rollers 26 are rotatably mounted on the rotating shaft 25. Multiple protrusions 27 are evenly spaced on the side wall of the output sleeve 22, and the rollers 26 are in contact with the... On the protrusion 27, multiple friction rings 28 are coaxially mounted on the side wall of the counterweight wheel 21. Multiple synchronizing blocks 29 are fitted onto the side wall of the counterweight wheel 21. The connecting mechanism also includes threaded rods 210 threaded into multiple protruding tubes 23. A spring 211 is mounted on each pressure rod 24, and a thrust bearing 212 is mounted on the other end of the spring 211. The threaded rod 210 presses against the thrust bearing 212. Multiple positioning strips 213 are evenly spaced on the side wall of each pressure rod 24. Multiple positioning strips 213 are respectively opened in each protruding tube 23. Positioning groove 214, positioning strip 213 is slidably connected in positioning groove 214, motor 12 is mounted with drive shaft 215, input wheel 216 is coaxially mounted on drive shaft 215, internal wheel 217 is coaxially mounted in counterweight wheel 21, output sleeve 22 is mounted with multiple connecting rods 218, limit plate 219 is mounted on multiple connecting rods 218, follower wheel 220 is rotatably mounted on each connecting rod 218, one end of multiple follower wheel 220 meshes with internal wheel 217, and the other end of multiple follower wheel 220 meshes with internal wheel 217. The input wheel 216 is attached to the input wheel 216. The two ends of the input wheel 216 are respectively attached to the limiting plate 219 and the output sleeve 22. Each synchronization block 29 has multiple friction grooves 221 corresponding to the friction ring 28. Multiple guide rods 222 are installed on the outer wall of the output sleeve 22. The synchronization block 29 has a guide hole 223. The guide rods 222 are slidably connected in the guide hole 223. Two push springs 224 are installed at the lower end of each synchronization block 29. The other ends of the multiple push springs 224 abut against the outer wall of the output sleeve 22.

[0024] When crushing flexible waste such as wood and plastic, a high rotational speed is required. First, the motor 12 drives the drive shaft 215 to rotate. Since the input wheel 216 is connected to the drive shaft 215, it drives the input wheel 216 to rotate synchronously. The input wheel 216 meshes with the follower wheel 220, and the follower wheel 220 meshes with the inner wheel 217. Please refer to the following sections for details. Figure 4 and Figure 6 First, the follower wheel 220 will revolve around the input wheel 216. Since the input wheel 216 is rotatably connected to the connecting rod 218, the follower wheel 220 will also rotate along the connecting rod 218. If the follower wheel 220 only rotates along the connecting rod 218, the connecting rod 218 will not rotate. Since the output sleeve 22 is connected to multiple connecting rods 218, it will not rotate either. Therefore, no rotation occurs inside the crushing box 31. Since the internal wheel 217 meshes with multiple follower wheels 220, all the rotational speed of the input wheel 216 is transmitted to the counterweight wheel. On 21, the output sleeve 22 will not rotate, but the counterweight wheel 21 will rotate in the opposite direction. All the rotation speed is transmitted to the counterweight wheel 21 to rotate, and the output sleeve 22 will not rotate. This is an extreme case where the output sleeve 22 does not move. Since the roller 26 is pressed on the protrusion 27, as the counterweight wheel 21 rotates, the roller 26 will rotate along the multiple protrusions 27. Then the spring 211 is always in a compressed and released state. At this time, the output sleeve 22 is stuck. Therefore, the motor 12 will rotate in this state and will not be burned out.

[0025] Because the spring 211 applies a corresponding elastic force to the roller 26, and the elastic forces of multiple springs 211 are superimposed, a rotational torque is generated between the roller 26 and the protrusion 27. When this torque causes the counterweight wheel 21 and the output sleeve 22 to rotate synchronously, since the follower wheel 220 is engaged with the inner wheel 217, and the inner wheel 217 and the connecting rod 218 are in a synchronous state, the input wheel 216 drives multiple follower wheels 220 to only revolve around the same point. Therefore, all the speed is transmitted to the output sleeve 22 through the follower wheels 220. At this time, the motor 12 is in the positive direction. In the constantly rotating state, due to the direct connection, the rotation speed is very fast. When the corresponding waste is put into the crushing box 31, the crushing blades 34 on both sides have a large inertia, which will produce a great crushing effect on the waste. When jamming occurs, the torque will be transmitted to the output sleeve 22. When this torque exceeds the pressure of multiple springs 211, the roller 26 will rotate along multiple protrusions 27, which will cause the follower wheel 220 to rotate along the connecting rod 218. This avoids rigid connection. When a large torque occurs, the rigid connection will be disengaged, thus generating an overload protection state and improving the safety of use.

[0026] When the counterweight wheel 21 and the output sleeve 22 are rotating synchronously, the rotational torque is provided not only by the pressure of the spring 211 but also by the friction between the multiple friction rings 28 and the friction grooves 221. The faster the output sleeve 22 rotates, the greater the torque it generates. Since the guide hole 223 on the synchronizing block 29 is slidably connected to the guide rod 222, the synchronizing block 29 can expand outward along the guide rod 222, and the push spring 224 also applies an outward thrust. As the output sleeve 22 rotates, centrifugal force is generated, and the faster the rotation, the greater the centrifugal force. The centrifugal force at this time will act on the friction ring 28 through multiple friction grooves 221. Since multiple friction rings 28 are provided, the friction range will be widened. The friction generated when the output sleeve 22 rotates synchronously with the counterweight wheel 21 is the maximum, and thus the maximum torque will also be generated. The sum of the torque generated by the friction and the torque generated by the spring 211 is the connection torque between the counterweight wheel 21 and the output sleeve 22. When the torque of the two is increased, the connection will be broken. By increasing the torque of the two, sufficient crushing force is generated to ensure the crushing of the waste, thus completing the crushing process.

[0027] The crushing mechanism includes a crushing box 31 fixedly mounted on a fixed frame 11. A drive shaft 32 and a driven shaft 33 are rotatably mounted inside the crushing box 31. An output sleeve 22 is connected to the drive shaft 32. The crushing mechanism also includes multiple crushing discs 34, which are respectively staggered on the drive shaft 32 and the driven shaft 33. Synchronous pulleys 35 are mounted on both the drive shaft 32 and the driven shaft 33, and the two synchronous pulleys 35 mesh with each other.

[0028] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste shredding device for construction project management, comprising a fixed frame (11) and a motor (12) mounted on the fixed frame (11); characterized in that: It also includes a connecting mechanism, which includes a counterweight wheel (21) and an output sleeve (22) coaxially arranged with the counterweight wheel (21). Multiple extension tubes (23) are evenly spaced on the counterweight wheel (21). A pressure rod (24) is slidably connected inside the extension tube (23). A rotating shaft (25) is mounted on the pressure rod (24). Rollers (26) are rotatably mounted on the rotating shaft (25). Multiple protrusions (27) are evenly spaced on the side wall of the output sleeve (22), and the rollers (26) are attached to the protrusions (27). The counterweight... Multiple friction rings (28) are coaxially mounted on the side wall of the wheel (21), and multiple synchronizing blocks (29) are fitted onto the side wall of the counterweight wheel (21); it also includes a crushing mechanism, which includes a crushing box (31) fixedly mounted on the fixed frame (11), a drive shaft (32) and a driven shaft (33) rotatably mounted inside the crushing box (31), an output sleeve (22) connected to the drive shaft (32), a transmission shaft (215) mounted on the motor (12), and an input wheel (216) coaxially mounted on the transmission shaft (215). An inner wheel (217) is coaxially mounted inside the counterweight wheel (21). Multiple connecting rods (218) are mounted on the output sleeve (22). Limiting discs (219) are mounted on the multiple connecting rods (218). A follower wheel (220) is rotatably mounted on each connecting rod (218). One end of each follower wheel (220) meshes with the inner wheel (217), and the other end meshes with the input wheel (216). Both ends of the input wheel (216) are respectively attached to the limiting discs (219). On the output sleeve (22), each of the synchronization blocks (29) is provided with a plurality of friction grooves (221) corresponding to the friction ring (28). A plurality of guide rods (222) are installed on the outer wall of the output sleeve (22). A guide hole (223) is provided on the synchronization block (29). The guide rods (222) are slidably connected in the guide hole (223). Two push springs (224) are installed at the lower end of each synchronization block (29), and the other ends of the plurality of push springs (224) abut against the outer wall of the output sleeve (22).

2. The waste shredding equipment for construction project management according to claim 1, characterized in that: The connecting mechanism also includes a threaded rod (210) threadedly connected to a plurality of the protruding tubes (23), each of the pressure rods (24) being fitted with a spring (211), the other end of the spring (211) being fitted with a thrust bearing (212), and the threaded rod (210) pressing against the thrust bearing (212).

3. The waste shredding equipment for construction project management according to claim 2, characterized in that: Each of the pressure rods (24) has multiple positioning strips (213) installed at equal intervals on its side wall, and each of the extension tubes (23) has multiple positioning grooves (214) respectively, and the positioning strips (213) are slidably connected in the positioning grooves (214).

4. The waste shredding equipment for construction project management according to claim 1, characterized in that: The crushing mechanism also includes multiple crushing discs (34), which are respectively staggered on the drive shaft (32) and the driven shaft (33). Both the drive shaft (32) and the driven shaft (33) are equipped with synchronous pulleys (35), and the two synchronous pulleys (35) mesh with each other.

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