Scraped car crusher unit

Abstract

The invention provides a scraped car crusher unit, and relates to the technical field of crushers, the scraped car crusher unit comprises a movable frame, and a first-stage crusher, a second-stage crusher and a third-stage crusher are mounted on the movable frame; two sets of auxiliary guide roller assemblies are installed in a first-stage hopper of the first-stage crusher and used for guiding a scraped car body flattened by the car flattening machine, the first-stage crusher is fixedly connected with a distance two-way adjusting hydraulic cylinder, and the working end of the distance two-way adjusting hydraulic cylinder is fixedly connected with the two auxiliary guide roller assemblies. The distance bidirectional adjusting hydraulic cylinder is used for adjusting the distance between the two auxiliary guide roller assemblies. The auxiliary guide roller assembly is arranged in the first-stage hopper of the first-stage crusher and matched with the interval bidirectional adjusting hydraulic cylinder, a flattened scraped car body can be effectively clamped and guided, the falling posture of materials is restrained, the problem of disordered feeding is solved, and the feeding safety and the crushing stability are improved.

Description

Technical Field

[0001] This invention belongs to the field of crusher technology, specifically relating to a scrap car crusher unit. Background Technology

[0002] End-of-life vehicle crushing is a core process in metal resource recycling. Traditional end-of-life vehicle crushing production lines generally adopt a fixed layout, with each stage of crushing equipment and its associated conveyor belts and sorting systems fixedly installed on a concrete foundation. While these production lines have high capacity, they also have significant limitations: Firstly, its huge footprint and immobility make it difficult to deploy flexibly to scattered vehicle scrapping sites or small and medium-sized recycling stations. Materials must be transported over long distances to fixed processing centers, increasing logistics costs and energy consumption. Secondly, the process route is relatively simple, mostly using single-stage coarse crushing or simple two-stage crushing. The crushing effect on scrapped car bodies with complex composition and irregular shape is limited, and problems such as uneven material size and insufficient separation of metal and non-metal often occur, affecting subsequent sorting and recycling grade. Thirdly, there are serious safety and efficiency bottlenecks in the actual coarse crushing feeding process. After being processed by the flattening machine, the scrapped car body becomes a loose, porous metal bundle with varying rigidity. When feeding, traditional crushers usually rely on dump trucks to tip over or simple ramps to directly put such materials into the crusher hopper. Due to the lack of effective guidance and restraint, the loose car body is very easy to roll and bounce violently due to uneven force when it comes into contact with the high-speed rotating crushing blades. This not only causes some material to be thrown out of the hopper, posing a great threat to the personal safety of on-site operators, but also causes the material to roll repeatedly at the feed inlet without feeding, intermittently interrupting the crushing operation and requiring manual adjustment of the material's posture. Furthermore, the disordered feeding state prevents the material from entering the crushing chamber in the optimal posture, and the cutters often engage in empty cutting or are subjected to asymmetrical impacts, resulting in low crushing efficiency, increased energy consumption, and aggravated abnormal wear of the cutters. Summary of the Invention

[0003] This invention provides a scrap car shredder unit to solve at least one of the technical problems mentioned above.

[0004] To solve the above-mentioned technical problems, the present invention discloses a scrap car crushing unit, including a mobile frame, on which a primary crusher, a secondary crusher and a tertiary crusher are installed. The mobile frame is also equipped with an eddy current separating conveyor belt. The primary crusher is used to coarsely crush the scrap car body flattened by the car flattener as the initial material, producing block material in a first size range. The secondary crusher is used to perform medium crushing on the block material in the first size range, producing material in a second size range. The tertiary crusher is used to finely crush the material in the second size range, producing the final crushed particles of the scrap car. The eddy current separating conveyor belt is used to output the final crushed particles of the scrap car. The primary crusher has two sets of auxiliary guide roller assemblies installed in the primary hopper. The auxiliary guide roller assemblies are used to guide the scrapped car bodies flattened by the car flattening machine. A two-way adjustable hydraulic cylinder is fixedly connected to the primary crusher. The working end of the two-way adjustable hydraulic cylinder is fixedly connected to the two auxiliary guide roller assemblies. The two-way adjustable hydraulic cylinder is used to adjust the distance between the two auxiliary guide roller assemblies.

[0005] Preferably, the primary and tertiary crushers are shear crushers, and the secondary crusher is a jaw crusher.

[0006] Preferably, the auxiliary guide roller assembly includes two symmetrically arranged mounting sliders, with an electric guide roller rotatably connected between the two mounting sliders. The mounting sliders are slidably connected in the mounting block groove on the primary hopper. The mounting slider on the same side as the spacing bidirectional adjustment hydraulic cylinder is fixedly connected to the output end of the spacing bidirectional adjustment hydraulic cylinder through a connecting block. A guide roller drive motor is fixedly connected to the other mounting slider, and the guide roller drive motor is used to drive the electric guide roller to rotate.

[0007] Preferably, it also includes a feeding control module, which is used to control the operation of the auxiliary guide roller assembly. The feeding control module includes: The data acquisition unit is used to acquire initial material thickness data. Real-time left-side extrusion pressure data of the electric guide roller on the left side against the initial material. Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller. Real-time left drive torque data of the guide roller drive motor corresponding to the electric guide roller on the left. Real-time right drive torque data of the guide roller drive motor corresponding to the right electric guide roller. Real-time load data of the primary crushing drive motor of the primary crusher and initial material attitude deviation data ; Spacing adaptive unit, used to adjust the spacing based on initial material thickness data Set the initial spacing between the two electric guide rollers. Based on the real-time left-side extrusion pressure data of the initial material from the electric guide roller on the left, Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller. The comparison results with the preset pressure range indicate the dynamic adjustment of the extension and retraction of the two output ends of the hydraulic cylinder. The dynamic adjustment unit for feeding is used to dynamically adjust the working mode of the two electric guide rollers based on the data collected by the data acquisition unit. The working modes include feeding mode, unloading mode and attitude adjustment mode. The feeding mode controls the two electric guide rollers to rotate synchronously in the first direction, based on the real-time load data of the primary crushing drive motor corresponding to the primary crusher. Real-time left drive torque data of the guide roller drive motor corresponding to the electric guide roller on the left. Real-time right drive torque data of the guide roller drive motor corresponding to the right electric guide roller. Dynamically adjust the output torque of each guide roller drive motor; The unloading mode is used for real-time load data of the primary crusher drive motor based on the primary crusher. Determine whether a feed blockage has occurred, and if a feed blockage occurs, control the two electric guide rollers to reverse synchronously with the direction opposite to the first direction of rotation; Attitude adjustment mode is used based on initial material attitude skew data Two electric guide rollers are controlled to rotate in opposite directions to correct the initial material orientation.

[0008] Preferably, the feed dynamic adjustment unit includes: The collaborative feeding control subunit is used in feeding mode to control the feed based on the real-time load data of the primary crushing drive motor corresponding to the primary crusher. Control the guide roller drive motors corresponding to the left and right electric guide rollers to output the corresponding target output torque: The reverse anti-blocking control subunit is used to continuously monitor the real-time load data of the primary crushing drive motor of the primary crusher. When the conditions are met When a feed blockage is detected and the unloading mode is triggered, the anti-blockage control subunit reverses. Exit the material return mode at that time, among which The congestion threshold for the primary crusher. The safe recovery threshold for a primary crusher; The attitude correction control subunit is used to adjust the initial material attitude skew data. Obtain the initial material's deflection direction and deflection amount. Based on the initial material's skew direction, the electric guide roller located in front of the skewed side of the initial material rotates forward, while the electric guide roller located behind the skewed side rotates in reverse, until the skew amount... Less than the set skew tolerance .

[0009] Preferably, a primary crushing assembly is provided below the auxiliary guide roller assembly inside the primary hopper; The primary crushing unit includes a primary active shearing roller, a primary driven shearing roller, a primary fixed blade group one, and a primary fixed blade group two. The primary active shearing roller and the primary driven shearing roller have complementary tooth profiles on one side, and complementary tooth profiles on the other side of the primary fixed blade group one and the primary fixed blade group two, respectively. The input end of the primary active shearing roller is fixedly connected to the output end of the primary crushing drive motor, which is fixedly connected to the primary hopper. A primary active gear and a primary driven gear are fixedly connected to the primary active shearing roller and the primary driven shearing roller, respectively, and the primary active gear and the primary driven gear mesh with each other. Both the primary active shearing roller and the primary driven shearing roller include a roller body and several shearing moving teeth fixedly connected to the roller body. Both the primary fixed blade group one and the primary fixed blade group two include several shearing fixed teeth fixedly connected to the inner wall of the primary hopper.

[0010] Preferably, it also includes a primary crushing component cutter monitoring module, which includes: The multi-source signal acquisition unit is used to acquire the vibration signals of the primary active shear roller and the primary driven shear roller, the load current signal of the primary crushing drive motor, and the torque signals of the primary active shear roller and the primary driven shear roller in each monitoring cycle at a fixed period, forming the active roller vibration signal sequence, the driven roller vibration signal sequence, the crushing drive motor current signal sequence, the active roller torque signal sequence, and the driven roller torque signal sequence for each monitoring cycle. The time-series feature extraction unit is used to extract features from the active roller vibration signal sequence, driven roller vibration signal sequence, crusher drive motor current signal sequence, active roller torque signal sequence, and driven roller torque signal sequence of each monitoring cycle, and generate a multi-dimensional feature vector corresponding to each monitoring cycle. The wear location assessment unit is used to combine the multi-dimensional feature vectors corresponding to N consecutive monitoring cycles into a wear location assessment matrix. It calculates the similarity between the wear location assessment matrix and multiple typical wear pattern matrices in the preset wear pattern library, and determines the specific location and severity level of wear based on the wear label associated with the typical wear pattern matrix with the highest similarity. The precision maintenance control unit is used to execute corresponding maintenance commands based on the specific location and severity of wear.

[0011] Preferably, the wear location assessment unit includes: The matrix construction sub-unit is used to stack the N multi-dimensional feature vectors corresponding to N consecutive monitoring cycles as row vectors in chronological order to construct an N-row, M-column wear location assessment matrix, where M is the dimension of the multi-dimensional feature vectors. The similarity calculation subunit is used to calculate the matrix similarity between the wear location assessment matrix and each typical wear pattern matrix in the preset wear pattern library; The pattern determination subunit is used to determine the specific location and severity level of the wear occurrence corresponding to the typical wear pattern matrix with the highest similarity to the wear location assessment matrix, based on the calculated matrix similarity.

[0012] Preferably, the output end of the eddy current separation conveyor belt is equipped with an eddy current separation magnetic roller, which is used to separate non-ferrous metals and non-metals from the final crushed particles of scrapped automobiles.

[0013] Compared with the prior art, the present invention has the following beneficial effects: This invention addresses the technical problems of traditional stationary crushing production lines, such as large footprint, immobility, and high logistics costs. By integrating a three-stage crushing unit onto a mobile chassis, it forms a complete mobile crushing unit, completely changing the stationary installation mode. This enables rapid relocation and flexible deployment of the equipment, allowing it to operate directly at scattered vehicle scrapping points or small and medium-sized recycling stations, significantly reducing the cost and energy consumption of long-distance material transportation. Furthermore, addressing the issues of simple process routes, limited crushing effect, and insufficient material separation in traditional methods, this invention employs a primary crusher for coarse crushing and a secondary crusher for medium crushing. The three-stage progressive crushing process of the three-stage crusher can perform step-by-step and refined processing of scrapped car bodies with complex composition and irregular shape, effectively improving the uniformity of crushed products and the degree of separation between metallic and non-metallic materials, laying a solid foundation for subsequent efficient sorting and high-value recycling. This invention sets up an auxiliary guide roller assembly in the first-stage hopper of the first-stage crusher, and works with a hydraulic cylinder with bidirectional spacing adjustment, which can effectively clamp and guide the flattened scrapped car body, constrain the falling posture of the material, solve the problem of disordered feeding, and improve feeding safety and subsequent crushing stability. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the crusher unit of the present invention; Figure 2 This is a front view of the crusher unit of the present invention; Figure 3This is a cross-sectional view of the crusher unit of the present invention; Figure 4 This is a side view of the crusher unit of the present invention; Figure 5 This is a schematic diagram of the installation of the primary active shearing roller and the primary driven shearing roller of the present invention; Figure 6 This is a schematic diagram of the three-stage crusher structure of the present invention.

[0015] In the diagram: 1. Mobile frame; 2. Primary crusher; 3. Secondary crusher; 4. Tertiary crusher; 5. Eddy current separating conveyor belt; 20. Primary hopper; 21. Auxiliary guide roller assembly; 22. Spacing bidirectional adjustable hydraulic cylinder; 23. Primary active shear roller; 24. Primary driven shear roller; 25. Primary fixed blade group one; 26. Primary fixed blade group two; 27. Primary crushing drive motor; 210. Mounting slider; 211. Mounting block groove; 212. Connecting block; 213. Electric guide roller; 214. Guide roller drive motor; 270. Primary drive gear; 271. Primary driven gear. Detailed Implementation

[0016] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0017] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0018] The present invention provides the following embodiments. Example 1 This invention provides a scrap car shredder unit, such as... Figure 1-6As shown, the device includes a mobile frame 1, on which a primary crusher 2, a secondary crusher 3, and a tertiary crusher 4 are installed. The mobile frame 1 is also equipped with an eddy current separating conveyor belt 5. The primary crusher 2 is used to coarsely crush the scrapped car body flattened by the car flattener as the initial material, producing blocky material in the first size range. The secondary crusher 3 is used to perform medium crushing on the blocky material in the first size range, producing material in the second size range. The tertiary crusher 4 is used to perform fine crushing on the material in the second size range, producing the final crushed particles of the scrapped car. The eddy current separating conveyor belt 5 is used to output the final crushed particles of the scrapped car. Two sets of auxiliary guide roller assemblies 21 are installed in the primary hopper 20 of the primary crusher 2. The auxiliary guide roller assemblies 21 are used to guide the scrapped car body flattened by the car flattening machine. A two-way adjustable hydraulic cylinder 22 is fixedly connected to the primary crusher 2. The working end of the two-way adjustable hydraulic cylinder 22 is fixedly connected to the two auxiliary guide roller assemblies 21. The two-way adjustable hydraulic cylinder 22 is used to adjust the distance between the two auxiliary guide roller assemblies 21.

[0019] The working principle and beneficial effects of the above technical solution are as follows: The mobile frame 1 serves as a movable base platform for the entire crusher unit, supporting and fixing the primary crusher 2, secondary crusher 3, tertiary crusher 4, and eddy current separation conveyor belt 5. During operation, the scrapped car body, pre-treated by the car flattening machine, is used as the initial material and is fed into the primary crusher 2 for coarse crushing, producing blocky materials in the first size range. Then, it falls into the secondary crusher 3 for medium crushing, producing materials in the second size range. Next, it enters the tertiary crusher 4 to complete fine crushing, finally forming scrapped car final crushed particles that meet the requirements. Finally, the eddy current separation conveyor belt 5 transports the final crushed particles to the designated collection point or the next process. This invention addresses the technical problems of traditional stationary crushing production lines, such as large footprint, immobility, and high logistics costs. By integrating a three-stage crushing unit onto a mobile chassis 1, a complete mobile crushing unit is formed, completely changing the stationary installation mode. This enables rapid relocation and flexible deployment of the equipment, allowing it to be directly stationed at scattered vehicle scrapping points or small and medium-sized recycling stations for operation, significantly reducing the cost and energy consumption of long-distance material transportation. Furthermore, addressing the issues of simple traditional process routes, limited crushing effect, and insufficient material separation, this invention employs a primary crusher 2 for coarse crushing, a secondary crusher 3 for medium crushing, and a tertiary crusher... The three-stage progressive crushing process of the crusher 4 can process complex and irregularly shaped scrapped car bodies step by step in a refined manner, effectively improving the uniformity of the crushed products and the degree of separation between metallic and non-metallic materials, laying a solid foundation for subsequent efficient sorting and high-value recycling. In this invention, an auxiliary guide roller assembly 21 is set in the primary hopper 20 of the primary crusher 2, and in conjunction with a hydraulic cylinder 22 with bidirectional spacing adjustment, which can effectively clamp and guide the flattened scrapped car body, constrain the falling posture of the material, solve the problem of disordered feeding, and improve feeding safety and subsequent crushing stability.

[0020] Example 2 Based on Example 1, the primary crusher 2 and the tertiary crusher 4 are shear crushers, and the secondary crusher 3 is a jaw crusher.

[0021] In this embodiment, the shear crusher typically includes a rotatable cutter roller and a fixed bottom cutter. Moving cutters are installed on the cutter roller. Through the shearing action formed between the moving cutter and the bottom cutter when the cutter roller rotates at high speed, as well as the mutual shearing action between the moving cutters, the material is cut and torn, thereby achieving the crushing of the material.

[0022] In this embodiment, the jaw crusher includes a fixed fixed jaw plate and a movable movable jaw plate. The movable jaw plate swings back and forth periodically under the drive of the drive mechanism. When the movable jaw plate approaches the fixed jaw plate, the material between the two jaw plates is crushed by compression, splitting and bending. When the movable jaw plate leaves the fixed jaw plate, the crushed material is discharged from the discharge port at the bottom of the crushing chamber under the action of gravity.

[0023] The working principle and beneficial effects of the above technical solution are as follows: Based on the physical characteristics of scrapped automobile materials at different crushing stages, this invention optimizes and matches the crusher type accordingly. Shear crushers are used in the coarse and fine crushing stages, utilizing their shearing and tearing principles to efficiently process thin steel plates and mixed non-metallic materials, reducing the entanglement problem of long fiber materials. They also produce relatively less noise and dust, and have lower power consumption. Jaw crushers are used in the medium crushing stage, fully leveraging their high structural strength and large crushing force. They powerfully crush the metal blocks formed after coarse crushing using squeezing and splitting actions, ensuring the entire production line's processing capacity and throughput of metal materials. This fully utilizes the respective technical advantages of shear crushers and jaw crushers, forming a highly efficient, energy-saving, and targeted three-stage crushing process. Compared to traditional single-stage or simple two-stage crushing processes, it can obtain crushed products with more uniform particle size and more regular shape.

[0024] Example 3 Based on Embodiment 1, the auxiliary guide roller assembly 21 includes two symmetrically arranged mounting sliders 210, with an electric guide roller 213 rotatably connected between the two mounting sliders 210. The mounting sliders 210 are slidably connected in the mounting block grooves 211 on the primary hopper 20. The mounting slider 210 on the same side as the bidirectional spacing adjustment hydraulic cylinder 22 is fixedly connected to the output end of the bidirectional spacing adjustment hydraulic cylinder 22 through a connecting block 212. A guide roller drive motor 214 is fixedly connected to the other mounting slider 210, and the guide roller drive motor 214 is used to drive the electric guide roller 213 to rotate.

[0025] The working principle and beneficial effects of the above technical solution are as follows: By synchronously or differentially extending and retracting the two output ends of the two-way adjustable hydraulic cylinder 22, the mounting slider 210 fixedly connected to it is directly driven to slide in the mounting block groove 211, thereby driving the two electric guide rollers 213 to move closer or further away from each other to adapt to the initial materials of different thicknesses. During the feeding process, the two guide roller drive motors 214 drive the two electric guide rollers 213 to rotate synchronously in the forward direction. The friction between the roller surface and the material is used to feed the initial material smoothly into the lower crushing chamber. When it is necessary to deal with blockage or adjust the material posture, the guide roller drive motors 214 are controlled to reverse or rotate differentially to achieve material removal or posture correction. This invention, through the cooperation of the mounting slider 210 and the mounting block groove 211, ensures the linear accuracy and stability of the movement during the spacing adjustment process. An independent guide roller drive motor 214 provides power to each electric guide roller 213, making the control of each roller more independent, flexible, and precise. This achieves active clamping and controllable feeding of fluffy, easily tumbling scrapped car bodies, solving the safety hazards of violent material tumbling, bouncing, poor feeding, and even material splashing that exist in traditional free-falling or simple dumping methods. It greatly improves the operational safety of the feeding process, avoids the threat to the personal safety of on-site operators from material splashing, and ensures that the material enters the crushing chamber in a stable, continuous, and controllable manner, laying a solid foundation for subsequent efficient and stable crushing operations. It also reduces random impacts and ineffective empty cutting on the primary crusher's blades, which is beneficial for protecting the blades.

[0026] Example 4 Based on Embodiment 3, a feeding control module is also included. The feeding control module is used to control the operation of the auxiliary guide roller assembly 21. The feeding control module includes: The data acquisition unit is used to acquire initial material thickness data. Real-time left-side extrusion pressure data of the initial material by the electric guide roller 213 on the left side. Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller 213 Real-time left drive torque data of the guide roller drive motor 214 corresponding to the electric guide roller 213 on the left. Real-time right drive torque data of the guide roller drive motor 214 corresponding to the right electric guide roller 213. Real-time load data of the primary crushing drive motor 27 of the primary crusher 2 and initial material attitude deviation data ; Spacing adaptive unit, used to adjust the spacing based on initial material thickness data Set the initial spacing between the two electric guide rollers 213 Based on the real-time left extrusion pressure data of the initial material from the electric guide roller 213 on the left, Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller 213 The comparison results with the preset pressure range determine the extension and retraction of the two output ends of the dynamically adjustable bidirectional hydraulic cylinder 22. The dynamic adjustment unit for feeding is used to dynamically adjust the working mode of the two electric guide rollers 213 based on the data collected by the data acquisition unit. The working modes include feeding mode, unloading mode and attitude adjustment mode. The feeding mode controls the two electric guide rollers 213 to rotate synchronously in the first direction, based on the real-time load data of the primary crushing drive motor 27 corresponding to the primary crusher 2. Real-time left drive torque data of the guide roller drive motor 214 corresponding to the electric guide roller 213 on the left. Real-time right drive torque data of the guide roller drive motor 214 corresponding to the right electric guide roller 213. The output torque of each guide roller drive motor 214 is dynamically adjusted; The material return mode is used for real-time load data of the primary crushing drive motor 27 based on the primary crusher 2. Determine whether a feed blockage has occurred, and if a feed blockage occurs, control the two electric guide rollers 213 to reverse synchronously with the direction opposite to the first direction of rotation; Attitude adjustment mode is used based on initial material attitude skew data Two electric guide rollers 213 are controlled to rotate in opposite directions to correct the initial material posture.

[0027] In this embodiment, a laser rangefinder sensor installed on the primary hopper 20 is used to acquire the initial material thickness data. .

[0028] In this embodiment, two high-precision hydraulic pressure sensors are used, which are directly installed on the two independent working oil circuits of the bidirectional adjustable hydraulic cylinder 22, namely the left chamber oil circuit and the right chamber oil circuit. The hydraulic pressure sensors are used to measure the oil pressure in the left chamber of the hydraulic cylinder in real time. and right chamber oil pressure The effective working area of ​​the piston rod side of the hydraulic cylinder 22 can be adjusted bidirectionally according to the spacing. and The real-time left extrusion pressure data of the left electric guide roller 213 on the initial material can be calculated independently. Real-time right extrusion pressure data of the initial material by the right electric guide roller 213 ; Preset pressure range The lower limit of the preset pressure range is set based on the initial material characteristics and equipment safety requirements. It is necessary to ensure that the initial material can be effectively clamped to prevent it from slipping due to gravity or vibration. The value can be estimated based on the coefficient of friction between the initial material and the surface of the electric guide roller 213, as well as the weight of the initial material. A typical range is [range missing]. to Preset pressure upper limit To prevent excessive compression from causing initial material deformation, jamming, or damage, the bidirectional adjustable hydraulic cylinder 22 has its value set based on the yield strength of a typical scrapped car body and the structural strength of the equipment. The typical value range is... to Specific values ​​can be obtained from finite element analysis or experimental calibration based on the average thickness of the steel plates of the main vehicle models being processed, within a typical range.

[0029] In this embodiment, two rotary torque sensors are used, which are respectively installed on the output shafts of the guide roller drive motor 214 corresponding to the left electric guide roller 213 and the guide roller drive motor 214 corresponding to the right electric guide roller 213, to directly measure the real-time left drive torque data. and real-time right drive torque data .

[0030] In this embodiment, a current transformer is used and connected to the three-phase power supply line of the primary crushing drive motor 27 to monitor its operating current in real time. Real-time load data Through formula Calculated, where This is the line voltage of the primary crushing drive motor 27. The power factor of the primary crushing drive motor 27 has a range of values. to , The efficiency of the primary crusher drive motor is the baseline operating efficiency (27), which is the motor's efficiency under rated load. It is an inherent parameter of the motor, and its value range is [range missing]. to .

[0031] In this embodiment, an industrial camera is used, installed in the upper part of the inner wall of the primary hopper 20, with its optical axis perpendicular to the feeding direction. The industrial camera continuously captures images of the initial material, and the image processing algorithm identifies the edge contour of the material and calculates the angle between the initial material axis and the ideal perpendicular feeding direction. The included angle As initial material attitude skew data It is stipulated that left skew is a negative value and right skew is a positive value; Image processing algorithms identify material edge contours and calculate included angles. The specific steps include: First, the images captured by the industrial camera are converted to grayscale and edge detected to extract the initial set of boundary pixels between the material and the background. Second, the extracted edge point set is fitted with a straight line using the least squares method to obtain the equation of the straight line along the material's central axis in the image coordinate system. Finally, the angle between this fitted line and the vertical axis of the image coordinate system, i.e., the ideal perpendicular feeding direction, is calculated; this angle is the... It is stipulated that when the material's centerline is offset to the left of the image, For negative values, the corresponding When veering to the right, For positive values, the corresponding .

[0032] In this embodiment, the spacing adaptive unit dynamically adjusts the extension and retraction of the two output ends of the bidirectional spacing adjustment hydraulic cylinder 22, specifically including: Real-time comparison of left extrusion pressure data And right extrusion pressure data With preset pressure range ; like or Then, the output end of the control gap bidirectional adjustment hydraulic cylinder 22 on the corresponding side extends to increase the roller spacing on that side, thereby reducing the extrusion pressure on that side; like or Less than And this state lasts for a set time, such as If the output end of the bidirectional adjustable hydraulic cylinder 22 is retracted, the overall spacing will be reduced and the clamping force will be increased. The oil circuits of the left and right chambers of the bidirectional adjustable hydraulic cylinder 22 can be controlled by independent electro-hydraulic proportional valves or servo valves respectively, so that the extension and retraction of the output ends on both sides can be independently and precisely adjusted.

[0033] The working principle and beneficial effects of the above technical solution: This invention achieves precise and adaptive management of complex feeding processes through multi-sensor data fusion and real-time closed-loop control. First, addressing the problems of disordered material feeding and uncontrollable posture in existing technologies, it can automatically adapt to scrapped vehicle bodies of different sizes and shapes through thickness sensing and pressure adaptive adjustment, improving the equipment's versatility and safety. Second, based on the real-time load of the primary crushing drive motor 27... Dynamically adjusting the feeding torque enables coordinated control for on-demand feeding, allowing for feeding even when the crusher is lightly loaded. Increase feeding force to accelerate feeding, and increase load. By reducing the feeding force to prevent overload, the feeding rhythm is precisely matched with the crushing capacity, optimizing the overall energy consumption, improving production efficiency, and solving the problem of low efficiency caused by the mismatch between feeding and processing capacity. Furthermore, skew data is obtained through image recognition from an industrial camera. Based on differential speed control, automatic online correction of material posture is achieved, ensuring that the material enters the crushing chamber with the optimal centered posture. This effectively solves the problems of uneven tool wear and crushing effect caused by material skew, extending tool life. Finally, it has automatic anti-blocking and unblocking functions. When an abnormal increase in the load of the primary crushing drive motor 27 is detected, it will automatically correct the material's posture. The automatic material return mode is triggered in a timely manner, which effectively prevents and resolves serious faults such as jamming, reduces unplanned downtime, and ensures production continuity and stability.

[0034] Example 5 Based on Example 4, the feed dynamic adjustment unit includes: The collaborative feeding control subunit is used to control the feed in feeding mode based on the real-time load data of the primary crushing drive motor 27 corresponding to the primary crusher 2. The guide roller drive motor 214 corresponding to the electric guide roller 213 on the left and the guide roller drive motor 214 corresponding to the electric guide roller 213 on the right output the corresponding target output torque: The reverse anti-blocking control subunit is used to continuously monitor the real-time load data of the primary crushing drive motor 27 of the primary crusher 2. When the conditions are met When a feed blockage is detected and the unloading mode is triggered, the anti-blockage control subunit reverses. Exit the material return mode at that time, among which The congestion threshold for primary crusher 2. The safe recovery threshold for primary crusher 2; The attitude correction control subunit is used to adjust the initial material attitude skew data. Obtain the initial material's deflection direction and deflection amount. The electric guide roller 213 located in front of the initial material deviation direction is controlled to rotate forward, and the electric guide roller 213 located behind the initial material deviation direction is controlled to rotate in reverse, until the deviation amount... Less than the set skew tolerance .

[0035] In this embodiment, the real-time load data of the primary crushing drive motor 27 corresponding to the primary crusher 2 is used. The guide roller drive motor 214 corresponding to the electric guide roller 213 on the left and the guide roller drive motor 214 corresponding to the electric guide roller 213 on the right output the corresponding target output torque. Specifically, it includes: ; In the feeding mode, the two guide roller drive motors 214 drive the two electric guide rollers 213 to rotate synchronously. The reference torque for the guide roller drive motor 214 is given in units of... The guide roller drive motor with a rated torque of 214 is selected. to , This is the feed acceleration coefficient for primary crusher 2, in units of... The decision was made to use a light load. The magnitude of the increase in feed power, This is the feed deceleration coefficient for primary crusher 2, in units of... The decision was made to overload. Reduce the amplitude of the feeding power at the same time. The efficiency threshold of the primary crusher 2, in units of The rated power of the primary crushing drive motor is 27. of to times, The protection threshold for primary crusher 2, in units of The rated power of the primary crushing drive motor is 27. of to times; when It was believed at the time that the primary crusher 2 had excess processing capacity; At that time, it was believed that the primary crusher 2 was close to overload.

[0036] In this embodiment, The rated power of the primary crushing drive motor is 27. of to times, The rated power of the primary crushing drive motor is 27. of to times.

[0037] In this embodiment, the initial material skew side refers to the side in which the material is biased as a whole, either left or right.

[0038] In this embodiment, the electric guide roller 213 located in front of the initial material's skew direction is controlled to rotate forward, and the electric guide roller 213 located behind the initial material's skew direction is controlled to rotate in reverse, that is, when... When the right electric guide roller 213 rotates forward, the left electric guide roller 213 rotates in reverse; when At this time, the left electric guide roller 213 is controlled to rotate forward, and the right electric guide roller 213 is controlled to rotate in reverse.

[0039] In this embodiment, the rotational speed difference between the two electric guide rollers 213 With skew Proportional, that is ,in The rotational speed difference correction coefficient represents the rotational speed difference between the two electric guide rollers 213 that need to be applied for a unit attitude deviation. It determines the response intensity of the correction action.

[0040] In this embodiment, a skew tolerance is set. This is an acceptable range of material skew angles that requires no correction. When When the material posture is deemed to meet the feeding requirements, the correction action is stopped to prevent unnecessary oscillations and adjustments from occurring near the target posture.

[0041] The working principle and beneficial effects of the above technical solution: The collaborative feeding algorithm of this invention This achieves refined and linear linkage control between feeding power and crushing load, making the feeding process smooth and responsive. It avoids drastic load fluctuations on the primary crusher drive motor 27 caused by uneven feeding, improving the stability and energy efficiency of the entire primary crusher 2. Secondly, the triggering conditions for the anti-blocking logic are clearly defined. With exit conditions This ensures accurate blockage detection, decisive material ejection, and timely resumption of feeding, forming a complete anti-blockage process that effectively avoids malfunctions and process interruptions, enhancing the system's autonomy. Furthermore, the attitude correction employs a strategy based on skew direction judgment and proportional control of skew amount, resulting in highly targeted and efficient correction actions, and includes dead-zone tolerance. This prevents unnecessary oscillations and adjustments in the system near the target attitude, ensuring the stability of the control. Finally, by decomposing the complex feeding control target into three relatively independent yet collaborative sub-units—coordinated feeding, reverse anti-blocking, and attitude correction—the complexity of the entire control system is reduced, and the reliability, maintainability, and adjustability of the system are improved.

[0042] Example 6 Based on Example 1, a primary crushing component is provided below the auxiliary guide roller assembly 21 inside the primary hopper 20; The primary crushing unit includes a primary active shearing roller 23, a primary driven shearing roller 24, a primary fixed blade group 1 25, and a primary fixed blade group 26. The primary active shearing roller 23 and the primary driven shearing roller 24 have complementary tooth profiles on one side, and complementary tooth profiles on the other side of the primary fixed blade group 1 25 and the primary fixed blade group 26, respectively. The input end of the primary active shearing roller 23 is fixedly connected to the output end of the primary crushing drive motor 27, which is fixedly connected to the primary hopper 20. A primary active gear 270 and a primary driven gear 271 are fixedly connected to the primary active shearing roller 23 and the primary driven shearing roller 24, respectively, and the primary active gear 270 and the primary driven gear 271 mesh with each other. Both the primary active shearing roller 23 and the primary driven shearing roller 24 include a roller body and several shearing moving teeth fixedly connected to the roller body. Both the primary fixed blade group 1 25 and the primary fixed blade group 26 include several shearing fixed teeth fixedly connected to the inner wall of the primary hopper 20.

[0043] The working principle and beneficial effects of the above technical solution are as follows: The primary crushing drive motor 27 directly drives the primary active shearing roller 23 to rotate through its output shaft. The primary active gear 270 fixed on the primary active shearing roller 23 meshes with the primary driven gear 271 fixed on the primary driven shearing roller 24, thereby transmitting power to the primary driven shearing roller 24, so that the two rollers can rotate strictly in opposite directions. The material fed into the primary hopper 20 is regulated by the upper auxiliary guide roller assembly 21 and then sent into the composite shearing area composed of rotating shearing moving teeth and fixed shearing stationary teeth. The material is repeatedly sheared, torn and pulled between the moving teeth and the stationary teeth and between the primary active shearing roller 23 and the primary driven shearing roller 24, thereby achieving coarse crushing. This invention employs a primary driving gear 270 and a primary driven gear 271 to directly transmit power, ensuring a strict synchronous and opposite rotational relationship between the driving and driven rollers. This results in accurate and powerful shearing action, high power transmission efficiency, and continuous and stable crushing. Secondly, the initial material is simultaneously subjected to two shearing actions: one between the moving and fixed teeth, and the other between the primary driving shear roller 23 and the primary driven shear roller 24. This creates a multi-level, composite shearing force field, resulting in good crushing effect, more uniform product particle size, and easier separation of metallic and non-metallic materials. Furthermore, compared to traditional hammer crushing, the shearing crushing principle offers advantages such as direct force, concentrated energy, high crushing efficiency per unit energy consumption, relatively low operating noise, and less dust generated during the crushing process.

[0044] Example 7 Based on Embodiment 6, a primary crushing component cutter monitoring module is also included. The primary crushing component cutter monitoring module includes: The multi-source signal acquisition unit is used to acquire the vibration signals of the primary active shear roller 23 and the primary driven shear roller 24, the load current signal of the primary crushing drive motor 27, and the torque signals of the primary active shear roller 23 and the primary driven shear roller 24 at fixed intervals for each monitoring cycle, forming the active roller vibration signal sequence, the driven roller vibration signal sequence, the crushing drive motor current signal sequence, the active roller torque signal sequence, and the driven roller torque signal sequence for each monitoring cycle; The time-series feature extraction unit is used to extract features from the active roller vibration signal sequence, driven roller vibration signal sequence, crusher drive motor current signal sequence, active roller torque signal sequence, and driven roller torque signal sequence of each monitoring cycle, and generate a multi-dimensional feature vector corresponding to each monitoring cycle. The wear location assessment unit is used to combine the multi-dimensional feature vectors corresponding to N consecutive monitoring cycles into a wear location assessment matrix. It calculates the similarity between the wear location assessment matrix and multiple typical wear pattern matrices in the preset wear pattern library, and determines the specific location and severity level of wear based on the wear label associated with the typical wear pattern matrix with the highest similarity. The precision maintenance control unit is used to execute corresponding maintenance commands based on the specific location and severity of wear.

[0045] In this embodiment, the duration of each monitoring cycle is set to be... The sampling frequency is Each signal sequence contains The sampling point, the first The signal sequences for each monitoring period are represented as follows: Active roller vibration signal sequence: ; Vibration signal sequence of driven roller: ; Crusher drive motor current signal sequence: ; Active roller torque signal sequence: ; Driven roller torque signal sequence: .

[0046] In this embodiment, feature extraction is performed on the active roller vibration signal sequence, driven roller vibration signal sequence, crusher drive motor current signal sequence, active roller torque signal sequence, and driven roller torque signal sequence for each monitoring cycle to generate a multi-dimensional feature vector corresponding to each monitoring cycle. Specifically, this includes: For the Active roller vibration signal sequence for each monitoring cycle Calculate the following four characteristic values: vibration energy intensity of the active roller. Active roller impact index , characteristic frequency amplitude of the front section of the active roller , characteristic frequency amplitude of the rear section of the active roller ; Active roller vibration energy intensity ;in, For the first The first active roller vibration signal sequence in the monitoring cycle Each sampled value represents the mechanical vibration acceleration. The number of sampling points for each signal sequence; Active roller impact index ;in, This is the sampled value with the largest absolute value in the active roller vibration signal sequence; characteristic frequency amplitude of the front section of the active roller That is, within the preset characteristic frequency range of the front segment, the maximum value of the spectral amplitude is taken; characteristic frequency amplitude of the rear section of the active roller That is, within the preset characteristic frequency range of the latter segment, the maximum value of the spectral amplitude is taken; For the Vibration signal sequence of the driven roller for each monitoring cycle Calculate the following four characteristic values: vibration energy intensity of the driven roller. Driven roller impact index Characteristic frequency amplitude of the front section of the driven roller Characteristic frequency amplitude of the rear section of the driven roller The calculation method for the four characteristic values ​​of the driven roller vibration signal sequence is the same as that for the driven roller vibration signal sequence. For the Current signal sequence of the crushing drive motor in each monitoring cycle Calculate the following three characteristic values: the effective value of the fundamental current. Total harmonic distortion of current Specific harmonic growth coefficient ; Among them, the effective value of the fundamental current wave ;in, For the first The current signal sequence in the monitoring cycle is the first Each sample value; Total harmonic distortion of current Perform an FFT on the current signal to extract the fundamental amplitude. and the amplitude of each harmonic , This represents the amplitude corresponding to the fundamental frequency. For the first The amplitude corresponding to the subharmonic frequency The highest harmonic order is considered; Specific harmonic growth coefficient ; This represents the maximum amplitude corresponding to the harmonic frequency. For the Active roller torque signal sequence for each monitoring cycle Calculate the following two characteristic values: mean torque of the drive roller. , Variance of active roller torque fluctuation ; Average torque of the drive roller ; Active roller torque fluctuation variance ;in, For the first The first active roller torque signal sequence in the monitoring cycle Each sample value; For the The sequence of driven roller torque signals for each monitoring cycle Calculate the following two characteristic values: mean torque of the driven roller. Variance of driven roller torque fluctuation ; The fifteen feature values ​​obtained from the above calculations are combined in a preset order to form the first... The fifteen-dimensional feature vector corresponding to each monitoring cycle .

[0047] In this embodiment, each typical wear mode matrix in the preset wear mode library It is acquired through supervised learning, specifically including: Data acquisition: After installing new equipment or changing tools, start recording the multidimensional feature vector for each monitoring cycle. After the equipment has run for several hundred hours, manual spot checks should be performed. Labeling: If the inspection finds that "three consecutive blades in the middle section of the primary active shearing roller 23 have wear exceeding 2mm", then the consecutive blades before that inspection point should be labeled as such. The multidimensional feature vector matrix of each cycle is extracted, labeled as Level 1 Active Shear Roller 23 - Middle Section - Wear Level, and stored in the pattern library as... One of them; the front section, middle section and rear section are respectively divided into three parts along the axial direction: the first-stage active shearing roller 23, the first-stage driven shearing roller 24, the first-stage fixed blade group 1 25 and the first-stage fixed blade group 26. Because the vibration frequency components, torque fluctuations, and modulation effects on motor current caused by the blades at different axial positions of the primary active shearing roller 23, primary driven shearing roller 24, primary fixed blade group one 25, and primary fixed blade group two 26 when crushing materials are slightly different, the feature vectors corresponding to different components, different sections, and different wear levels can be learned through a large number of samples with precise position labels.

[0048] In this embodiment, each typical wear pattern matrix in the preset wear pattern library is associated with a wear label, and the wear label format is component-segment-wear level; The components include: a primary active shearing roller 23, a primary driven shearing roller 24, a primary fixed blade assembly 1 25, and a primary fixed blade assembly 2 26. The section includes: the first-stage active shearing roller 23, the first-stage driven shearing roller 24, the first-stage fixed blade group 1 25, and the first-stage fixed blade group 26, which correspond to the front section, middle section, rear section, and overall section, respectively; Wear levels include the wear levels of the primary active shearing roller 23, the primary driven shearing roller 24, the primary fixed blade group 1 25, and the primary fixed blade group 2 26, including moderate wear level and deep wear level.

[0049] In this embodiment, maintenance instructions are executed based on the specific location and severity level of wear, including wear tags associated with a matrix of typical wear patterns with the highest similarity. ; If the level is moderate, a first type of instruction is generated: control the automatic lubrication nozzles located in the corresponding component and section to start and spray a preset amount of high-performance lubricant; if the level is severe, a second type of instruction is generated: trigger a targeted replacement warning on the user interface, and the warning information clearly includes the component and section. For example: wear and tear labels The precision maintenance and control unit then controls the dedicated lubrication nozzle installed at the front end of the primary driven shear roller 24 to spray lubricating grease, thereby improving the local friction condition and slowing down the wear process without stopping the machine; Wear and tear labels The precision maintenance control unit flashes a red alarm: "Warning: The first-level fixed tool group 26 is worn in depth. Planned replacement is recommended."

[0050] The working principle and beneficial effects of the above technical solution are as follows: This invention overcomes the limitations and randomness of single signal source diagnosis by fusing information from multiple physical quantity sensors such as vibration, current, and torque. It can capture weak syndrome signs of tool wear, tooth breakage, and other faults more comprehensively and earlier, greatly improving the reliability, sensitivity, and early warning capability of condition monitoring. Secondly, the multi-dimensional time-domain and frequency-domain features extracted from the original signal, such as energy, impact, spectral characteristics, harmonic characteristics, and wave characteristics, can sensitively reflect different fault modes of the tool from different physical mechanism perspectives. A wear mode library is established through supervised learning, and the wear location evaluation matrix obtained from real-time monitoring is used. Compared with historical failure mode matrix By performing similarity calculations and matching, the assessment of tool wear status has undergone a qualitative leap from simple threshold alarms to precise positioning and quantitative rating. It can not only determine whether there is an anomaly, but also accurately identify which specific component, which axial section, and what level of wear is present. Based on the diagnostic results, differentiated maintenance instructions are triggered, realizing an upgrade from preventive maintenance to predictive maintenance. It can avoid downtime when it is not necessary and provide clear and specific guidance when maintenance is required, thereby optimizing maintenance costs and cycles, maximizing equipment availability and productivity, and significantly extending the service life of core crushing components.

[0051] Example 8 Based on Example 7, the wear location assessment unit includes: The matrix construction sub-unit is used to stack the N multi-dimensional feature vectors corresponding to N consecutive monitoring cycles as row vectors in chronological order to construct an N-row, M-column wear location assessment matrix, where M is the dimension of the multi-dimensional feature vectors. The similarity calculation subunit is used to calculate the matrix similarity between the wear location assessment matrix and each typical wear pattern matrix in the preset wear pattern library; The pattern determination subunit is used to determine the specific location and severity level of the wear occurrence corresponding to the typical wear pattern matrix with the highest similarity to the wear location assessment matrix, based on the calculated matrix similarity.

[0052] In this embodiment, the wear location assessment unit performs the following operations: Continuous Feature vectors obtained from each monitoring period to Stacked row by row to form a Wear location assessment matrix ; Calculate the wear location assessment matrix Compared with each typical wear pattern matrix in the preset wear pattern library similarity Each typical wear mode matrix Associate with a specific wear label Wear label The format is component-segment-level; select the matrix of typical wear patterns with the highest similarity. Associate it with wear tags This will be output as the current wear assessment result.

[0053] In this embodiment, the wear location assessment unit calculates the wear location assessment matrix. Compared with each typical wear pattern matrix in the preset wear pattern library similarity The cosine similarity method is used, and the formula is as follows: in, The wear location assessment matrix has a size of [size missing]. , from continuous The 15-dimensional feature vectors of each monitoring period are stacked in rows; For the first in the preset wear mode library A typical wear mode matrix, the size of which is also [missing information]. This corresponds to a known wear mode; This is a matrix vectorization operation that expands a matrix into a one-dimensional vector by rows. Vector dot product operation; Let be the Euclidean norm of the vector; Wear location assessment matrix Compared with each typical wear pattern matrix in the preset wear pattern library The similarity ranges from The closer the value is to 1, the more similar the two matrices are.

[0054] The working principle and beneficial effects of the above technical solution are as follows: This invention uses feature vectors from multiple consecutive monitoring periods to construct a state matrix. The evaluation effectively utilizes the temporal correlation information during the occurrence and development of wear, enabling the capture of more stable and reliable fault development trends. This improves the anti-interference ability, robustness, and accuracy of the diagnostic results. Secondly, by using cosine similarity as a similarity measure between matrices, the algorithm focuses primarily on the directional consistency of feature patterns in multidimensional space, while being relatively insensitive to changes in the absolute magnitude of feature values. This allows the algorithm to place greater emphasis on identifying the fault patterns themselves, enhancing its adaptability and robustness to state fluctuations under different operating conditions and load levels, and improving the generalization ability of the diagnosis.

[0055] Example 9 Based on Example 1, the output end of the eddy current separation conveyor belt 5 is equipped with an eddy current separation magnetic roller, which is used to separate non-ferrous metals and non-metals in the final crushed particles of scrapped automobiles.

[0056] In this embodiment, the eddy current sorting conveyor belt 5 is a prior art eddy current sorting device. The eddy current sorting magnetic roller is equipped with permanent magnets arranged in a specific pole order or electromagnetic coils powered by a power supply to generate a high-speed alternating magnetic field. The eddy current sorting magnetic roller is coaxially mounted with the pulley at the output end of the eddy current sorting conveyor belt 5.

[0057] The working principle and beneficial effects of the above technical solution are as follows: The final crushed particles of the scrapped car after being processed by the three-stage crusher 4 are conveyed to its output end by the eddy current separation conveyor belt 5 and enter the eddy current separation section integrated with the eddy current separation magnetic roller. When the final crushed particles of the scrapped car contain non-ferrous metals such as aluminum and copper, as well as non-metals such as plastics, rubber, and glass fiber, and pass through the high-speed rotating eddy current separation magnetic roller at a certain speed, the high-speed alternating magnetic field on the surface of the magnetic roller will induce eddy currents inside the non-ferrous metal particles with good conductivity. The eddy currents will generate an induced magnetic field opposite to the magnetic field of the magnetic roller, thereby applying a strong lateral repulsive force to the non-ferrous metal particles, ejecting the non-ferrous metal particles from the main material flow and causing them to fall into the pre-set non-ferrous metal collection trough or collection belt; while for non-metallic materials with poor conductivity or no conductivity, there is almost no eddy current effect, so they are not affected by the magnetic field repulsive force. They will continue to move along the original conveying direction and eventually fall into the non-metallic residue collection hopper under the action of gravity, thereby achieving efficient and automatic separation of non-ferrous metals and non-metals; This invention integrates an eddy current separating magnetic roller at the output end of the eddy current separating conveyor belt 5, which can automatically and continuously separate high-value non-ferrous metals from complex scrap car crushed particles.

[0058] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A scrap car shredder unit, characterized in that: The system includes a mobile frame (1), on which a primary crusher (2), a secondary crusher (3) and a tertiary crusher (4) are installed. The mobile frame (1) is also equipped with an eddy current separation conveyor belt (5). The primary crusher (2) is used to coarsely crush the scrapped car body flattened by the car flattener as the initial material to produce blocky material in the first size range. The secondary crusher (3) is used to medium crush the blocky material in the first size range to produce material in the second size range. The tertiary crusher (4) is used to finely crush the material in the second size range to produce the final crushed particles of the scrapped car. The eddy current separation conveyor belt (5) is used to output the final crushed particles of the scrapped car. Two sets of auxiliary guide roller assemblies (21) are installed in the primary hopper (20) of the primary crusher (2). The auxiliary guide roller assemblies (21) are used to guide the scrapped car body flattened by the car flattening machine. A two-way adjustable hydraulic cylinder (22) is fixedly connected to the primary crusher (2). The working end of the two-way adjustable hydraulic cylinder (22) is fixedly connected to the two auxiliary guide roller assemblies (21). The two-way adjustable hydraulic cylinder (22) is used to adjust the distance between the two auxiliary guide roller assemblies (21).

2. The end-of-life vehicle shredder unit according to claim 1, characterized in that: The primary crusher (2) and the tertiary crusher (4) are shear crushers, and the secondary crusher (3) is a jaw crusher.

3. The end-of-life vehicle shredder unit according to claim 1, characterized in that: The auxiliary guide roller assembly (21) includes two symmetrically arranged mounting sliders (210), and an electric guide roller (213) is rotatably connected between the two mounting sliders (210). The mounting sliders (210) are slidably connected in the mounting block groove (211) on the primary hopper (20). The mounting slider (210) on the same side as the spacing bidirectional adjustment hydraulic cylinder (22) is fixedly connected to the output end of the spacing bidirectional adjustment hydraulic cylinder (22) through the connecting block (212). A guide roller drive motor (214) is fixedly connected to the other mounting slider (210). The guide roller drive motor (214) is used to drive the electric guide roller (213) to rotate.

4. The end-of-life vehicle shredder unit according to claim 3, characterized in that: It also includes a feed control module, which is used to control the operation of the auxiliary guide roller assembly (21). The feed control module includes: The data acquisition unit is used to acquire initial material thickness data. Real-time left-side extrusion pressure data of the electric guide roller (213) on the initial material. Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller (213) Real-time left drive torque data of the guide roller drive motor (214) corresponding to the electric guide roller (213) on the left. Real-time right drive torque data of the guide roller drive motor (214) corresponding to the right electric guide roller (213). Real-time load data of the primary crushing drive motor (27) of the primary crusher (2) and initial material attitude skew data ; Spacing adaptive unit, used to adjust the spacing based on initial material thickness data Set the initial spacing between the two electric guide rollers (213) Based on the real-time left extrusion pressure data of the initial material by the electric guide roller (213) on the left, and based on the electric guide roller (213) on the left. Real-time right-side extrusion pressure data of the initial material by the right-side electric guide roller (213) The comparison results with the preset pressure range show the extension and retraction of the two output ends of the dynamically adjustable bidirectional hydraulic cylinder (22); The feeding dynamic adjustment unit is used to dynamically adjust the working mode of the two electric guide rollers (213) based on the data collected by the data acquisition unit. The working modes include feeding mode, unloading mode and attitude adjustment mode. The feeding mode is used to control the two electric guide rollers (213) to rotate synchronously in the first direction, based on the real-time load data of the primary crushing drive motor (27) corresponding to the primary crusher (2). Real-time left drive torque data of the guide roller drive motor (214) corresponding to the electric guide roller (213) on the left. Real-time right drive torque data of the guide roller drive motor (214) corresponding to the right electric guide roller (213). The output torque of each guide roller drive motor (214) is dynamically adjusted; The unloading mode is used for real-time load data of the primary crushing drive motor (27) based on the primary crusher (2). Determine whether a feed blockage has occurred, and if a feed blockage occurs, control the two electric guide rollers (213) to reverse synchronously with the direction opposite to the first direction of rotation; Attitude adjustment mode is used based on initial material attitude skew data Two electric guide rollers (213) are controlled to rotate in opposite directions to correct the initial material posture.

5. A scrap car shredder unit according to claim 4, characterized in that: The feed dynamic adjustment unit includes: The collaborative feeding control subunit is used to control the feed in the feeding mode based on the real-time load data of the primary crushing drive motor (27) corresponding to the primary crusher (2). The guide roller drive motor (214) corresponding to the electric guide roller (213) on the left and the guide roller drive motor (214) corresponding to the electric guide roller (213) on the right output the corresponding target output torque: The reverse anti-blocking control subunit is used to continuously monitor the real-time load data of the primary crushing drive motor (27) of the primary crusher (2). When the conditions are met When a feed blockage is detected and the unloading mode is triggered, the anti-blockage control subunit reverses. Exit the material return mode at that time, among which The congestion threshold for the primary crusher (2) is set as follows. The safe recovery threshold for the primary crusher (2); The attitude correction control subunit is used to adjust the initial material attitude skew data. Obtain the initial material's deflection direction and deflection amount. The electric guide roller (213) located in front of the initial material deviation direction is controlled to rotate forward according to the initial material deviation direction, and the electric guide roller (213) located behind the initial material deviation direction is controlled to rotate in reverse until the deviation amount is reached. Less than the set skew tolerance .

6. A scrap car shredder unit according to claim 1, characterized in that: A primary crushing assembly is provided below the auxiliary guide roller assembly (21) inside the primary hopper (20); The primary crushing unit includes a primary active shearing roller (23), a primary driven shearing roller (24), a primary fixed blade group one (25), and a primary fixed blade group two (26). The primary active shearing roller (23) and the primary driven shearing roller (24) have complementary tooth profiles on one side, and complementary tooth profiles on the other side of the primary fixed blade group one (25) and the primary fixed blade group two (26), respectively. The input end of the primary active shearing roller (23) is fixedly connected to the output end of the primary crushing drive motor (27) fixedly connected to the primary hopper (20). A primary active gear (270) and a primary driven gear (271) are fixedly connected to the primary active shearing roller (23) and the primary driven shearing roller (24), respectively. The primary active gear (270) and the primary driven gear (271) mesh with each other. Both the primary active shearing roller (23) and the primary driven shearing roller (24) include a roller body and several shearing moving teeth fixedly connected to the roller body. Both the primary fixed blade group one (25) and the primary fixed blade group two (26) include several shearing fixed teeth fixedly connected to the inner wall of the primary hopper (20).

7. A scrap car shredder unit according to claim 6, characterized in that: It also includes a primary crushing component cutter monitoring module, which includes: The multi-source signal acquisition unit is used to acquire the vibration signals of the primary active shearing roller (23) and the primary driven shearing roller (24), the load current signal of the primary crushing drive motor (27), and the torque signals of the primary active shearing roller (23) and the primary driven shearing roller (24) in each monitoring cycle according to a fixed cycle, forming the active roller vibration signal sequence, the driven roller vibration signal sequence, the crushing drive motor current signal sequence, the active roller torque signal sequence, and the driven roller torque signal sequence for each monitoring cycle; The time-series feature extraction unit is used to extract features from the active roller vibration signal sequence, driven roller vibration signal sequence, crusher drive motor current signal sequence, active roller torque signal sequence, and driven roller torque signal sequence of each monitoring cycle, and generate a multi-dimensional feature vector corresponding to each monitoring cycle. The wear location assessment unit is used to combine the multi-dimensional feature vectors corresponding to N consecutive monitoring cycles into a wear location assessment matrix. It calculates the similarity between the wear location assessment matrix and multiple typical wear pattern matrices in the preset wear pattern library, and determines the specific location and severity level of wear based on the wear label associated with the typical wear pattern matrix with the highest similarity. The precision maintenance control unit is used to execute corresponding maintenance commands based on the specific location and severity of wear.

8. A scrap car shredder unit according to claim 7, characterized in that: The wear location assessment unit includes: The matrix construction sub-unit is used to stack the N multi-dimensional feature vectors corresponding to N consecutive monitoring cycles as row vectors in chronological order to construct an N-row M-column wear location assessment matrix, where M is the dimension of the multi-dimensional feature vectors. The similarity calculation subunit is used to calculate the matrix similarity between the wear location assessment matrix and each typical wear pattern matrix in the preset wear pattern library; The pattern determination subunit is used to determine the specific location and severity level of the wear occurrence corresponding to the typical wear pattern matrix with the highest similarity to the wear location assessment matrix, based on the calculated matrix similarity.

9. A scrap car shredder unit according to claim 1, characterized in that: The output end of the eddy current separation conveyor belt (5) is equipped with an eddy current separation magnetic roller, which is used to separate non-ferrous metals and non-metals in the final crushed particles of scrapped cars.

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