Concrete crushing device

Abstract

The utility model discloses a concrete crushing device which comprises a supporting frame, a crushing mechanism is arranged on the supporting frame, the crushing mechanism comprises an installation shell, rotating shafts, motors, crushing wheels and a partition plate, the number of the motors is two, the motors are installed on the supporting frame, and auxiliary mechanisms are arranged between the motors and the two rotating shafts. The auxiliary mechanism comprises a connecting sleeve, an idling rod, clamping blocks, a clamping groove, a pressure applying block, a sliding hole, a sliding rod, a bottom plate, a pressure spring and an adjusting mechanism, the connecting sleeve is installed at the top end of the rotating shaft, the idling rod is installed at the output end of the motor, the multiple sets of clamping blocks are arranged in the connecting sleeve in a sliding mode, and the auxiliary mechanism is fixed through reasonable cooperation of the connecting sleeve, the idling rod, the clamping blocks, the pressure applying block and other assemblies. The problem that the crushing wheel is stuck due to large hard convex blocks can be effectively avoided, and when the resistance is too large, an idling mechanism between the idling rod and the connecting sleeve can release certain pressure, so that equipment is ensured not to fail due to overload.

Description

Technical Field

[0001] This utility model relates to the field of waste recycling technology, and more specifically, it relates to a concrete crushing device. Background Technology

[0002] In modern building demolition and waste recycling, concrete crushing often presents challenges, especially when dealing with concrete containing large, hard protrusions. These protrusions not only increase the difficulty of crushing but can also cause equipment malfunctions. During the crushing process, hard protrusions may get stuck in the rotating parts of the crushing device, causing the equipment to malfunction or even overload the motor. In such cases, not only will the crushing operation be interrupted, but it may also cause serious damage to the equipment, increasing maintenance costs and time.

[0003] In practice, concrete waste at construction sites often contains blocks of various shapes and hardnesses. For example, when demolishing old buildings, concrete may contain hard materials such as steel bars and stones. These hard materials are prone to getting stuck in the crushing parts of the equipment during the crushing process, causing the equipment to stop. Overloading the motor can not only damage the motor itself, but may also trigger a chain of failures in other components, seriously affecting crushing efficiency and operational safety. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a concrete crushing device to solve the technical problem mentioned in the background art that hard materials are easily stuck in the crushing parts of the equipment during the crushing process, causing the equipment to stop. Overloading the motor will not only damage the motor itself, but may also cause a chain of failures in other components.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete crushing device, including a support frame, on which a crushing mechanism is mounted. The crushing mechanism includes a mounting shell, a rotating shaft, a motor, crushing wheels, and partitions. The mounting shell is mounted on the support frame. Two sets of rotating shafts are rotatably mounted inside the mounting shell. Two sets of motors are mounted on the support frame, and auxiliary mechanisms are provided between each set of motors and the two sets of rotating shafts. Multiple sets of crushing wheels are mounted on the outer walls of the two sets of rotating shafts. Multiple sets of partitions are mounted on the inner side of the mounting shell. The auxiliary mechanism includes a connecting sleeve, a free-spinning rod, a locking block, a locking groove, a pressure block, a sliding hole, a sliding rod, a base plate, a compression spring, and an adjustment mechanism. The connecting sleeve is installed at the top of the rotating shaft, the free-spinning rod is installed at the motor output end, multiple sets of locking blocks slide within the connecting sleeve, multiple sets of locking grooves are distributed on the outer wall of the free-spinning rod, multiple sets of pressure blocks abut against the outer wall of multiple sets of locking blocks, multiple sets of sliding holes are distributed within the connecting sleeve, the sliding rod is installed on the bottom surface of multiple sets of pressure blocks, the base plate is installed at the bottom end of multiple sets of sliding rods and slides in connection with the sliding hole, and the compression spring is installed on the bottom surface of multiple sets of base plates.

[0008] This invention is further configured such that a collection hopper is installed on the bottom surface of the mounting shell. By installing the collection hopper on the bottom surface of the mounting shell, concrete fragments generated after crushing can be effectively collected, preventing fragments from scattering and improving the working efficiency and ease of cleaning of the equipment. The collection hopper can concentrate the fragments, facilitating subsequent transportation or disposal and reducing pollution and mess on site.

[0009] This invention is further characterized by a return spring connecting each of the multiple sets of locking blocks to the connecting sleeve. The return spring allows the locking blocks to quickly reset after being subjected to pressure, ensuring the stability of the locking blocks and the smooth operation of the transmission system, and preventing jamming due to excessive pressure. The elastic force provided by the return spring can automatically adjust the position of the locking blocks, ensuring that the equipment can still operate efficiently under different working conditions.

[0010] This invention is further characterized in that the bottom ends of the multiple sets of locking blocks and the locking slots are all arc-shaped. The arc design of the bottom ends of the locking blocks and the locking slots can effectively reduce the friction between the locking blocks and the locking slots, avoid jamming or wear caused by excessive friction, ensure smooth sliding of the locking blocks within the connecting sleeve, and enhance the durability and stability of the equipment.

[0011] The present invention is further configured such that a connecting ring is provided inside the connecting sleeve, and the connecting ring is fixedly connected to multiple sets of pressure blocks. The connecting ring enhances the structural stability of the connecting sleeve, and the fixed connection between the connecting ring and the pressure blocks ensures that the thrust of the pressure blocks is evenly transmitted to the clamping blocks, ensuring more precise force transmission during the crushing process, and improving the working efficiency and reliability of the equipment.

[0012] This invention is further configured such that a collection vehicle is provided below the support frame. The collection vehicle facilitates the collection and transportation of crushed concrete fragments, reducing the inconvenience of manual handling and improving the efficiency and convenience of fragment processing. The cooperation between the support frame and the collection vehicle makes the entire crushing process more systematic and automated.

[0013] This utility model is further configured such that the adjusting mechanism includes adjusting blocks, sliding grooves, guide plates, sliding sleeves, and rotating sleeves. The adjusting blocks have multiple sets that slide within multiple sets of sliding holes and are connected to compression springs. Multiple sets of sliding grooves are distributed on the outer wall of the connecting sleeve. Guide plates are installed on the outer walls of multiple adjusting blocks and are slidably connected to multiple sets of sliding grooves. Sliding sleeves slide on the outer wall of the connecting sleeve and are connected to multiple sets of guide plates. The rotating sleeve is rotatably installed on the top surface of the sliding sleeve. Through a precisely designed adjusting mechanism, the thrust of the pressure block can be flexibly adjusted, ensuring that it can flexibly handle concrete blocks of different hardness and size during the crushing process and preventing the crushing wheel from jamming. The cooperation of multiple components in the adjusting mechanism improves the adaptability and stability of the device under various working conditions, making the equipment's performance superior.

[0014] This invention is further configured such that the outer wall of the connecting sleeve has an external threaded groove, and the inner wall of the rotating sleeve is threadedly connected to the external threaded groove. Through the threaded connection between the rotating sleeve and the outer wall of the connecting sleeve, the position of the rotating sleeve can be precisely adjusted, making the adjustment of the adjusting block more accurate. This further improves the thrust control accuracy of the pressure block, ensuring the reliability and flexibility of the equipment during the crushing process. The cooperation between the external threaded groove and the rotating sleeve makes the adjustment process smoother, reduces mechanical friction, and extends the service life of the equipment.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a concrete crushing device, which has the following beneficial effects:

[0017] 1. In this concrete crushing device, the crushing mechanism, through the cooperation of the rotating shaft and the crushing wheel, can effectively crush concrete blocks into smaller fragments for easier subsequent processing. The crushing wheel crushes the concrete through contact, which can efficiently complete the crushing work. Driven by a motor, the crushing mechanism can ensure that the crushing process continues. Even when encountering large hard protrusions, the crushing wheel can still rotate continuously, thereby improving the working efficiency of the device. Through a precisely designed transmission system, the synergistic effect between the rotating shaft and the crushing wheel ensures the transmission of crushing force, thereby avoiding equipment stagnation caused by incomplete concrete crushing.

[0018] 2. The auxiliary mechanism, through the reasonable cooperation of components such as the connecting sleeve, idle rod, locking block, and pressure block, can effectively avoid the problem of the crushing wheel jamming due to large hard protrusions. When encountering excessive resistance, the idle mechanism between the idle rod and the connecting sleeve can release a certain amount of pressure, ensuring that the equipment will not malfunction due to overload. The locking block slides inside the connecting sleeve, combined with the thrust of the pressure block, allowing the locking block to adjust its position freely during operation, thereby ensuring that the transmission system between the shaft and the crushing wheel is not obstructed. Through the design of multiple sets of return springs, the locking block can quickly reset after the resistance is released, allowing the equipment to resume normal operation. This mechanism effectively improves the adaptability of the equipment in complex environments, reduces the probability of failure, and ensures the stability of the crushing process.

[0019] 3. The adjustment mechanism, through the combination of adjusting block, slide groove, guide plate and rotating sleeve, can precisely adjust the preset force of the pressure spring on the pressure block, thereby finely controlling the thrust of the pressure block during the crushing process. The threaded engagement between the rotating sleeve and the external thread groove allows the adjusting block to move precisely in the sliding hole, thereby driving the extension and contraction of the pressure spring and adjusting the tension of the base plate on the pressure block. During the adjustment process, the slide rod can optimize the movement of the clamping block in the connecting sleeve by changing the thrust applied by the pressure block, so that the crushing wheel can react more flexibly when encountering large hard protrusions and avoid jamming. Through this precise adjustment function, the device can adapt to the crushing needs of different types of concrete, improving the adaptability and reliability of the equipment under different working conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a concrete crushing device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the crushing mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the protective mechanism in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the protection mechanism and the adjustment mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the aggregation bucket structure in this utility model.

[0025] In the diagram: 1. Support frame; 2. Mounting shell; 3. Rotating shaft; 4. Motor; 5. Crushing wheel; 6. Partition plate; 7. Connecting sleeve; 8. Idle rod; 9. Locking block; 10. Locking groove; 11. Pressure block; 12. Sliding hole; 13. Sliding rod; 14. Base plate; 15. Compression spring; 16. Gathering hopper; 17. Return spring; 18. Connecting ring; 19. Collection cart; 20. Adjusting block; 21. Slide groove; 22. Guide plate; 23. Sliding sleeve; 24. Rotating sleeve; 25. External thread groove. Detailed Implementation

[0026] 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.

[0027] 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.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually 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 used to limit this utility model.

[0029] Please see Figures 1-5 A concrete crushing device includes a support frame 1, on which a crushing mechanism is mounted. The crushing mechanism includes a mounting shell 2, a rotating shaft 3, a motor 4, crushing wheels 5, and partition plates 6. The mounting shell 2 is mounted on the support frame 1. Two sets of rotating shafts 3 are rotatably mounted inside the mounting shell 2. Two sets of motors 4 are mounted on the support frame 1, and auxiliary mechanisms are provided between each set of motors 4 and the two sets of rotating shafts 3. Multiple sets of crushing wheels 5 are mounted on the outer walls of the two sets of rotating shafts 3. Multiple sets of partition plates 6 are mounted on the inner side of the mounting shell 3. The auxiliary mechanisms include a connecting sleeve 7, a free-spinning rod 8, a locking block 9, a locking groove 10, and a pressure block. 11. Sliding hole 12, sliding rod 13, base plate 14, with compression spring 15 and adjustment mechanism, connecting sleeve 7 is installed at the top of rotating shaft 3, idle rod 8 is installed at the output end of motor 4, multiple sets of locking blocks 9 are provided to slide in the connecting sleeve 7, multiple sets of locking grooves 10 are provided on the outer wall of idle rod 8, multiple sets of pressure blocks 11 are provided to abut against the outer wall of multiple sets of locking blocks 9, multiple sets of sliding holes 12 are provided in the connecting sleeve 7, sliding rod 13 is installed on the bottom surface of multiple sets of pressure blocks 11, base plate 14 is installed on the bottom end of multiple sets of sliding rods 13 and is slidably connected to sliding hole 12, and compression spring 15 is provided on the bottom surface of multiple sets of base plates 14.

[0030] A collection hopper 16 is installed on the bottom surface of the mounting shell 2. By setting the collection hopper 16 on the bottom surface of the mounting shell 2, the debris or concrete residue generated during the crushing process can be effectively collected, preventing the debris from falling into the surrounding environment, facilitating subsequent processing or transportation, ensuring the cleanliness and safety of the work site, and improving the operating efficiency of the equipment.

[0031] Each of the multiple sets of locking blocks 9 is connected to the connecting sleeve 7 with a return spring 17. The function of the return spring 17 is to ensure that the locking blocks 9 can quickly return to their original position after being subjected to pressure, thereby ensuring the stability of the equipment and the normal working condition of the locking blocks. It can provide appropriate elasticity between the multiple sets of locking blocks 9 and the connecting sleeve 7 to prevent the locking blocks from jamming or getting stuck, and to ensure that the transmission system can operate smoothly.

[0032] The bottom ends of multiple sets of locking blocks 9 and locking slots 10 are all designed with arc shapes. The arc-shaped design of the bottom ends of the locking blocks 9 and locking slots 10 can effectively reduce friction, reduce wear between the locking blocks 9 and locking slots 10, ensure smooth sliding, and reduce jamming. The arc shape helps to evenly distribute pressure, thereby improving the working efficiency of the equipment and reducing the risk of jamming and damage.

[0033] The connecting sleeve 7 is equipped with a connecting ring 18, which is fixedly connected to multiple sets of pressure blocks 11. The connecting ring 18 increases the structural strength of the connecting sleeve 7, preventing the connecting sleeve 7 from deforming due to external forces during use. At the same time, the fixed connection between the connecting ring 18 and the pressure blocks 11 ensures that the pressure blocks 11 stably transmit pressure, achieving a precise pressure application effect, thereby improving the efficiency and accuracy of crushing.

[0034] A collection cart 19 is installed below the support frame 1. The collection cart 19 allows for the direct collection and transportation of debris or concrete residue generated during the crushing process to a designated location, reducing the workload of manual handling and transportation. The collection cart 19 improves the cleanliness of the work site, makes the equipment operate more efficiently, and reduces the environmental impact of waste spillage.

[0035] In this embodiment, during use, concrete blocks are conveyed into the collection hopper 16. The motor 4 drives two sets of rotating shafts 3 to operate. Each set of rotating shafts 3 drives multiple sets of crushing wheels 5 installed on the outer wall. During rotation, the crushing wheels 5 crush the concrete through contact with it. When the motor 4 is working, the rotating shafts 3 and the crushing wheels 5 work together through the transmission structure, causing the crushing wheels 5 to rotate continuously and crush the concrete. This crushing process effectively breaks concrete blocks into smaller fragments for subsequent processing. When the crushing wheel 5 jams the shaft 3 due to large, hard protrusions in the concrete, the motor 4 continues to rotate. The shaft 3 then drives the connecting sleeve 7 to generate a certain resistance. When the resistance of the connecting sleeve 7 exceeds the preset force set by the compression spring 15 on the pressure block 11, the outer side of the slot 10 will push the block 9 out of the slot 10 and slide it outward, overcoming the thrust of the pressure block 11. At this time, the idle rod 8 and the connecting sleeve 7 will rotate freely until the operator stops the motor 4. Finally, the elastic reset of the multiple sets of reset springs 17 pulls the block 9 back into the slot 10. The multiple sets of compression springs 15 pull the base plate 14 and push the pressure block 11 against the outer side of the block 9 through the slide rod 13, restoring the connection between the connecting sleeve 7 and the idle rod 8.

[0036] Please see Figures 3-5 As one embodiment of the adjustment mechanism: the adjustment mechanism includes an adjustment block 20, a sliding groove 21, a guide plate 22, a sliding sleeve 23, and a rotating sleeve 24. The adjustment block 20 is provided with multiple sets that slide in multiple sets of sliding holes 12 and are connected to a compression spring 15. The sliding groove 21 is provided with multiple sets distributed on the outer wall of the connecting sleeve 7. The guide plate 22 is installed on the outer wall of multiple sets of adjustment blocks 20 and is slidably connected to multiple sets of sliding grooves 21. The sliding sleeve 23 slides on the outer wall of the connecting sleeve 7 and is connected to multiple sets of guide plates 22. The rotating sleeve 24 is rotatably installed on the top surface of the sliding sleeve 23.

[0037] The outer wall of the connecting sleeve 7 has an external threaded groove 25, and the inner wall of the rotating sleeve 24 is threadedly connected to the external threaded groove 25. The threaded connection between the external threaded groove 25 and the rotating sleeve 24 provides a precise adjustment mechanism, allowing the position or orientation of the connecting sleeve 7 to be adjusted by rotating the rotating sleeve 24, thereby precisely controlling the position and thrust of the internal pressure block. This design not only increases the flexibility of adjustment but also ensures the stability of the pressure block and the reliability of the equipment.

[0038] More specifically, when it is necessary to adjust the preset force of the pressure spring 15 on the pressure block 11, the rotating sleeve 24 is threadedly connected to the external thread groove 25, so that the rotating sleeve 24 moves along the connecting sleeve 7, driving the sliding sleeve 23 to slide along the connecting sleeve 7. At the same time, the guide plate 22 drives the adjusting block 20 to slide along the sliding hole 12. The moving adjusting block 20 stretches the pressure spring 15, increasing the pulling force of the pressure spring 15 on the base plate 14, thereby increasing the pushing force of the sliding rod 13 on the pressure block and increasing the abutting pushing force of the pressure block 11 on the locking block 9. Conversely, the preset force is reduced.

[0039] In summary, during use or operation of the overall equipment: When in use, concrete blocks are conveyed into the collection hopper 16. The motor 4 drives two sets of rotating shafts 3. Each set of rotating shafts 3 drives multiple sets of crushing wheels 5 installed on the outer wall. During rotation, the crushing wheels 5 crush the concrete through contact with it. When the motor 4 is working, the rotating shafts 3 and the crushing wheels 5 work together through the transmission structure, causing the crushing wheels 5 to continuously rotate and crush the concrete. This crushing process effectively breaks concrete blocks into smaller fragments for subsequent processing. When the crushing wheel 5 jams the shaft 3 due to large, hard protrusions in the concrete, the motor 4 continues to rotate. The shaft 3 then drives the connecting sleeve 7 to generate a certain resistance. When the resistance of the connecting sleeve 7 exceeds the preset force set by the compression spring 15 on the pressure block 11, the outer side of the slot 10 will push the block 9 out of the slot 10 and slide it outward, overcoming the thrust of the pressure block 11. At this time, the idle rod 8 and the connecting sleeve 7 will rotate freely until the operator stops the motor 4. Finally, the elastic reset of the multiple sets of reset springs 17 pulls the block 9 back into the slot 10. The multiple sets of compression springs 15 pull the base plate 14 and push the pressure block 11 against the outer side of the block 9 through the slide rod 13, restoring the connection between the connecting sleeve 7 and the idle rod 8.

[0040] When it is necessary to adjust the preset force of the pressure spring 15 on the pressure block 11, the rotating sleeve 24 is threadedly connected to the external thread groove 25, so that the rotating sleeve 24 moves along the connecting sleeve 7, driving the sliding sleeve 23 to slide along the connecting sleeve 7. At the same time, the guide plate 22 drives the adjusting block 20 to slide along the sliding hole 12. The moving adjusting block 20 stretches the pressure spring 15, increasing the pulling force of the pressure spring 15 on the base plate 14, thereby increasing the pushing force of the sliding rod 13 on the pressure block and increasing the abutting pushing force of the pressure block 11 on the locking block 9. Conversely, the preset force is reduced.

[0041] 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 this utility model 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 this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete breaking device comprising a support frame (1), characterised in that: The support frame (1) is provided with a crushing mechanism, the crushing mechanism comprises a mounting shell (2), a rotating shaft (3), a motor (4), a crushing wheel (5) and a partition (6), the mounting shell (2) is installed on the support frame (1), the rotating shaft (3) is provided with two groups of rotating installations in the mounting shell (2), the motor (4) is provided with two groups of installations on the support frame (1) and is provided with an auxiliary mechanism between the two groups of rotating shafts (3), the crushing wheel (5) is provided with a plurality of groups of installations on the outer wall of the two rotating shafts (3), the partition (6) is provided with a plurality of groups of installations in the inside of the installation, the auxiliary mechanism comprises a connecting sleeve (7), an idle rod (8), a clamping block (9), a clamping groove (10), a pressing block (11), a sliding hole (12), a sliding rod (13), a bottom plate (14), a setting spring (15) and an adjusting mechanism, the connecting sleeve (7) is installed at the top end of the rotating shaft (3), the idle rod (8) is installed at the output end of the motor (4), the clamping block (9) is provided with a plurality of groups of sliding in the connecting sleeve (7), the clamping groove (10) is provided with a plurality of groups of distribution on the outer wall of the idle rod (8), the pressing block (11) is provided with a plurality of groups of abutting on the outer wall of the plurality of clamping blocks (9), the sliding hole (12) is provided with a plurality of groups of distribution in the connecting sleeve (7), the sliding rod (13) is installed on the bottom surface of the plurality of pressing blocks (11), the bottom plate (14) is installed at the bottom end of the plurality of sliding rods (13) and is slidably connected with the sliding hole (12), and the setting spring (15) is installed on the bottom surface of the plurality of bottom plates (14).

2. A concrete breaking device as claimed in claim 1, characterised in that: The bottom surface of the mounting shell (2) is provided with an accumulation hopper (16).

3. A concrete breaking device as claimed in claim 2, characterised in that: A reset spring (17) is connected between the plurality of clamping blocks (9) and the connecting sleeve (7).

4. A concrete breaking device as claimed in claim 3, characterised in that: The bottom end of the plurality of clamping blocks (9) and the clamping groove (10) are both provided in an arc shape.

5. A concrete breaking device as claimed in claim 4, characterised in that: The connecting sleeve (7) is provided with a connecting ring (18), and the connecting ring (18) is fixedly connected with the plurality of pressing blocks (11).

6. A concrete breaking device as claimed in claim 5, characterised in that: A collection vehicle (19) is arranged below the support frame (1).

7. A concrete breaking device as claimed in claim 6, characterised in that: The adjusting mechanism comprises an adjusting block (20), a sliding groove (21), a guide plate (22), a sliding sleeve (23) and a rotating sleeve (24), the adjusting block (20) is provided with a plurality of groups of sliding in the plurality of sliding holes (12) and is connected with the setting spring (15), the sliding groove (21) is provided with a plurality of groups of distribution on the outer wall of the connecting sleeve (7), the guide plate (22) is installed on the outer wall of the plurality of adjusting blocks (20) and is slidably connected with the plurality of sliding grooves (21), the sliding sleeve (23) is slidably connected with the plurality of guide plates (22), and the rotating sleeve (24) is rotatably installed on the top surface of the sliding sleeve (23).

8. A concrete breaking device as claimed in claim 7, characterised in that: The outer wall of the connecting sleeve (7) is provided with an external thread groove (25), and the inner wall of the rotating sleeve (24) is screwedly connected with the external thread groove (25).

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