Cutting device for recycling rear side wall inner plate of discarded vehicle

Abstract

This invention relates to the field of shearing equipment technology and discloses a cutting device for recycling the rear side panel of a discarded vehicle. It includes an upper connecting part fixed to one end of an excavator arm, and a cover fixed below the upper connecting part. Two sets of shearing devices are symmetrically slidably installed inside the cover. An obstacle removal assembly for blocking and clearing obstacles from the gap between the two sets of shearing devices is fixed inside the cover. The obstacle removal assembly includes a partition plate fixed to the inner wall of the cover and located in the middle of the gap between the two sets of shearing devices. The device uses a first synchronous hydraulic cylinder to push a slider in the obstacle removal assembly downwards along a cross groove. The slider then drives a connecting rod to rotate, which pushes a hinge plate to flip outwards. Simultaneously, the top teeth at the bottom of the hinge plate forcefully extrude obstacles, achieving high-frequency automatic removal of metal debris from the hydraulic shear gap and forming a physical barrier to prevent secondary jamming, ensuring the continuous operation capability of the shearing equipment.

Description

Technical Field

[0001] This invention relates to the field of shearing equipment technology, and more particularly to a cutting device for recycling the rear side panel of abandoned vehicles. Background Technology

[0002] With the continuous growth of global car ownership, the number of scrapped vehicles is increasing rapidly every year. Improper disposal of these abandoned vehicles not only occupies a large amount of land resources, but also causes soil and groundwater pollution due to the heavy metals and waste oil they contain. Furthermore, if most of the steel used in the vehicle body is not effectively recycled, it will exacerbate the depletion of non-renewable resources such as iron ore. Against this backdrop, the resource recycling of abandoned vehicles has become a crucial link in alleviating resource shortages and environmental pollution. The rear side panel, as a large integrated stamped part of the vehicle body, has a high proportion of steel in the overall vehicle weight due to its uniform thickness and pure material (mostly high-strength low-alloy steel). Its efficient recycling is directly related to the recovery of metal resources. The current waste vehicle dismantling process faces the dual challenges of low efficiency and insufficient adaptability. The mainstream process currently uses hydraulic shears mounted on the front end of an excavator arm to perform preliminary cutting and dismantling of waste vehicles. However, traditional single-unit hydraulic shears have obvious limitations: on the one hand, the rear side panel is relatively large, and a single hydraulic shear needs to perform multiple alignment cuts to complete the dismantling, resulting in a long operation time and difficulty in meeting the efficiency requirements of large-scale recycling; on the other hand, in addition to the rear side panel, the vehicle body structure also contains components of different sizes such as door frames and trunk lids. The fixed blade spacing of traditional hydraulic shears cannot be flexibly adapted, often requiring frequent tool changes or adjustments to the working angle, further increasing labor costs.

[0003] To address these issues, the industry has begun exploring multi-unit, side-by-side hydraulic shearing equipment. This type of equipment, by installing multiple sets of scissor-type hydraulic shears side-by-side, can achieve simultaneous multi-segment cutting of large plates, significantly improving cutting efficiency compared to traditional equipment. Simultaneously, by adjusting the spacing of the blade sections in each set of hydraulic shears using hydraulic push rods, it can quickly adapt to the cutting needs of components of different sizes, reducing the frequency of tool changes. However, in practical applications, optimizing the pressure distribution of the hydraulic system and the force balance of the blades has become a key issue in improving equipment stability. Furthermore, for the shearing requirements of high-strength steel, the blade material and cutting edge design also need further upgrades to avoid insufficient shearing force or blade breakage.

[0004] Meanwhile, the parallel excavator hydraulic shearing equipment described above still has the following shortcomings: when shearing the U-shaped edge of the rear side panel or the reinforcing ribs on the vehicle, the broken metal scrap is very easy to get embedded in the gap between the two sets of hydraulic shearing equipment. This phenomenon may cause the equipment spacing adjustment function to fail. Although the metal scrap can be removed by increasing the blade spacing, this operation requires repeatedly starting and stopping the hydraulic system and repositioning the cutting point, increasing the single fault handling time and seriously affecting the efficiency of continuous operation. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology cannot efficiently remove metal scrap stuck in the gap between two sets of hydraulic shearing equipment without interfering with the normal shearing operation. To this end, we propose a cutting device for recycling the inner rear panel of abandoned vehicles.

[0006] To achieve the above objectives, this application adopts the following technical solution: a cutting device for recycling the rear side panel of a discarded vehicle, including an upper connecting part fixed to one end of an excavator arm, a cover fixed below the upper connecting part, two sets of shearing devices symmetrically and slidably installed inside the cover, and an obstacle removal component for blocking and clearing obstacles in the gap between the two sets of shearing devices fixed inside the cover.

[0007] The obstacle removal assembly includes a partition plate fixed to the inner wall of the enclosure and located in the middle of the gap between the two sets of shearing equipment. The outer walls of both sides of the partition plate are hinged with hinge plates for clearing and blocking obstacles in the gap between the two sets of shearing equipment. The inner walls of both sides of the partition plate are slidably installed with sliders. The two sets of sliders are symmetrical. The outer walls of the two sets of sliders that are far away from each other are symmetrically connected with connecting rods. The two sets of connecting rods are symmetrical. The end of the connecting rod that is far away from the partition plate is hinged to the hinge plate.

[0008] The outer wall of the enclosure is equipped with a drive component for indirectly driving the obstacle removal component with the power generated when shearing by a shearing device.

[0009] Preferably, the cross-sectional shape of the slider is cross-shaped, and the partition plate has a cross groove of matching size and shape at the contact position with the two sets of sliders.

[0010] Preferably, one side of the outer wall of the hinge plate has a groove for storing the connecting rod in the folded state, and the end of the connecting rod away from the partition is rotatably connected to the inner wall of the groove. The size of the connecting rod is slightly smaller than the opening size of the cross groove and the groove.

[0011] Preferably, the bottom outer wall of the hinge plate is welded and fixed with multiple sets of top teeth at equal intervals, and the top outer wall of the hinge plate is an inclined surface, which is in contact with one side outer wall of the shearing device when the hinge plate is unfolded.

[0012] Preferably, the driving assembly includes two sets of first synchronous hydraulic cylinders symmetrically fixed to the outer wall of the top of the cover. The output end of the first synchronous hydraulic cylinder penetrates downward through the cover and extends into the interior of the cross groove. The cover and the partition are provided with sliding holes of matching size at the contact positions with the output ends of the first synchronous hydraulic cylinders, and the output ends of the first synchronous hydraulic cylinders are fixed to the upper surface of the slider.

[0013] Preferably, a second synchronous hydraulic cylinder is fixedly installed at a diagonal position on both sides of the outer wall of the cover. The output end of the second synchronous hydraulic cylinder passes through the cover and extends into the interior of the cover. A plug rod is fixed to the output end of the second synchronous hydraulic cylinder.

[0014] Preferably, a connecting groove plate is fixed to one side of the outer wall of the shearing device, and a sliding groove is opened on one side of the outer wall of the connecting groove plate, and one end of the insert rod is inserted into the sliding groove, and the insert rod and the sliding groove are in a sliding connection relationship.

[0015] Preferably, the first synchronous hydraulic cylinder and the second synchronous hydraulic cylinder have the same internal volume, and one end of the first synchronous hydraulic cylinder is connected to one end of the second synchronous hydraulic cylinder through a hydraulic connecting pipe.

[0016] Preferably, the upper surface of the cover is symmetrically provided with two sets of limiting grooves, and the upper surfaces of the two sets of shearing devices are fixed with sliding parts, and the sliding parts and the limiting grooves are in a sliding connection relationship.

[0017] Preferably, the upper surface of the cover is provided with a hydraulic push rod for adjusting the distance between the two sets of shearing devices, and the outer walls of the two sets of sliding parts with their tops close to each other are respectively fixed to one end of the hydraulic push rod.

[0018] The technical effects and advantages of this invention are as follows:

[0019] In this invention, the device uses a first synchronous hydraulic cylinder to push a slider in the obstacle removal assembly to move down along the cross groove. The slider then drives the connecting rod to rotate, and the connecting rod pushes the hinge plate to flip outward and unfold. At the same time, the top teeth at the bottom of the hinge plate forcefully squeeze out the obstacles, realizing high-frequency automatic removal of metal debris from the hydraulic shear gap and forming a physical isolation barrier to prevent secondary jamming, thus ensuring the continuous operation capability of the shearing equipment.

[0020] In this invention, the device uses the power of the shearing device to drive the connecting slot plate in the drive assembly to rotate. The connecting slot plate squeezes the insert rod, the insert rod slides and drives the second synchronous hydraulic cylinder to retract. The hydraulic pressure is synchronously transmitted to the first synchronous hydraulic cylinder through the pipeline, realizing the linkage response of the obstacle removal component. This achieves hydraulic synchronization between the shearing action and the obstacle removal action. It can complete the "knife opens to remove obstacles, knife closes to retract the component" cycle self-cleaning mechanism without an external power source, saving operating costs. Attached Figure Description

[0021] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts:

[0022] Figure 1 This is a top view of the overall structure of the present invention;

[0023] Figure 2 This is a bottom view of the overall structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the upper connecting part and the cover structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the hydraulic push rod, shearing device and connecting groove plate structure of the present invention;

[0026] Figure 5 This is a partial cross-sectional view of the device of the present invention;

[0027] Figure 6 This is a schematic diagram of the obstacle removal component and drive component of the present invention;

[0028] Figure 7 This is a schematic diagram of the partition, hinge plate, and top pressure structure of the present invention;

[0029] Figure 8 This is a schematic diagram showing the structural breakdown of the obstacle removal component of the present invention.

[0030] Legend: 1. Upper connecting part; 11. Cover; 111. Limiting groove; 12. Sliding part; 13. Hydraulic push rod; 14. Shearing equipment; 15. Connecting groove plate; 2. Partition plate; 201. Cross groove; 21. Hinge plate; 211. Top tooth; 22. Slider; 23. Connecting rod; 3. First synchronous hydraulic cylinder; 31. Second synchronous hydraulic cylinder; 311. Insert rod. Detailed Implementation

[0031] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0032] Reference Figure 1-8As shown, the present invention provides a technical solution: a cutting device for recycling the inner rear panel of a discarded vehicle, including an upper connecting part 1 fixed to one end of an excavator arm. The upper connecting part 1 is mainly composed of a rotating component and a connecting component. Two sets of symmetrically arranged upper mounting plates are welded to the upper surface of the rotating component, and the mounting plates are fixed to the excavator arm by bolts. Two sets of lower mounting plates that can be fixed to a cover 11 are fixed to the lower surface of the rotating component. A cover 11 for providing a certain degree of enclosure and protection for the two sets of cutting devices 14 is fixed below the upper connecting part 1. The cover 11 is made entirely of metal. Two sets of shearing devices 14 are symmetrically slidably installed inside the body 11. The two sets of shearing devices 14 can slide along the limiting groove 111 with the help of two sets of sliding parts 12. By driving the hydraulic push rod 13 to adjust the distance between the two sets of sliding parts 12 and the two sets of shearing devices 14, the effect of real-time variable distance can be achieved, thereby adapting to different shearing needs (different shearing needs mainly refer to limiting the sheared waste material within a certain length range when shearing and dismantling vehicles), improving the practicality and applicability of the equipment. Inside the cover 11, there is a barrier removal component for blocking and clearing obstacles in the gap between the two sets of shearing devices 14.

[0033] The obstacle removal assembly includes a partition plate 2 fixed to the inner wall of the cover 11 and located in the middle of the gap between the two sets of shearing devices 14. The partition plate 2 and the cover 11 are an integral structure. The outer walls of both sides of the partition plate 2 are hinged with hinge plates 21 made of metal for clearing and blocking obstacles in the gap between the two sets of shearing devices 14. The inner walls of both sides of the partition plate 2 are slidably installed with sliders 22 that move up and down by means of the output end of the first synchronous hydraulic cylinder 3 and the inward and outward extension of the spring sleeve. The two sets of sliders 22 are symmetrical. The outer walls of the two sets of sliders 22 that are far away from each other are symmetrically connected with connecting rods 23. The two sets of connecting rods 23 are symmetrical. The end of the connecting rod 23 that is far away from the partition plate 2 is hinged to the hinge plate 21.

[0034] The outer wall of the cover 11 is equipped with a drive assembly for indirectly driving the obstacle removal assembly by means of the power generated when the shearing device 14 is shearing.

[0035] Reference Figure 6-8 As shown in this embodiment: the top view cross-section of the slider 22 is "cross-shaped", and the partition 2 and the two sets of sliders 22 are provided with cross grooves 201 that match the size and shape. The cross grooves 201 slide and fit with the top view cross-shaped slider 22 to ensure the stability of the slider 22 when it moves up and down.

[0036] Reference Figure 6-8As shown in this embodiment: a groove for accommodating the connecting rod 23 in the folded state is provided on one side of the outer wall of the hinge plate 21. When the hinge plate 21 is in the state of being in contact with the partition 2 (and at this time the two sets of blades of the shearing device 14 are in the state of being combined for shearing), part of the connecting rod 23 is embedded in the groove and the other part is embedded in the cross groove 201. The "concave structure" of the groove and the cross groove 201 can accommodate the connecting rod 23 to a certain extent, preventing the connecting rod 23 from obstructing the hinge plate 21 from being completely in contact with the partition 2. When the two sets of shearing devices 14 are combined, the smaller the total parallel thickness of the two sets of hinge plates 21 and the partition 2, the smaller the limitation on the adjustment range of the shearing device 14. The end of the connecting rod 23 away from the partition 2 is rotatably connected to the inner wall of the groove. The size of the connecting rod 23 is slightly smaller than the opening size of the cross groove 201 and the groove.

[0037] Reference Figure 6-8 As shown in this embodiment: multiple sets of top teeth 211 are welded and fixed at equal intervals on the bottom outer wall of the hinge plate 21. The multiple sets of top teeth 211 can forcefully squeeze out the metal scrap stuck below the partition plate 2 (still in the middle position of the two sets of shearing devices 14) when the hinge plate 21 is completely attached to the partition plate 2 or during the rotation towards the partition plate 2, thereby reducing the blank area to be cleared and maximizing the clearing effect. The top outer wall of the hinge plate 21 is an inclined surface, and the inclined surface is attached to one side outer wall of the shearing device 14 when the hinge plate 21 is unfolded. By attaching the inclined surface to the outer surface of the shearing device 14, the gap between the two can be minimized as much as possible, reducing the possibility of fine metal scrap entering the space formed by the gap between the cover 11, the obstacle removal component, and the two sets of shearing devices 14, thereby reducing the possibility of the equipment getting stuck due to metal scrap to a certain extent.

[0038] Reference Figure 1-8 As shown in this embodiment: the driving component includes two sets of first synchronous hydraulic cylinders 3 symmetrically fixed to the outer wall of the top of the cover 11. The two sets of first synchronous hydraulic cylinders 3 are symmetrical, and both sets of first synchronous hydraulic cylinders 3 are vertically installed at the middle position of the upper surface of the cover 11. The output end of the first synchronous hydraulic cylinder 3 penetrates downward through the cover 11 and extends into the cross groove 201. The cover 11 and the partition 2 are provided with sliding holes of matching size at the contact positions with the output end of the first synchronous hydraulic cylinder 3. The output end of the first synchronous hydraulic cylinder 3 is fixed to the upper surface of the slider 22. The first synchronous hydraulic cylinder 3 and a set of adjacent second synchronous hydraulic cylinders 31 form a hydraulic combination. The first synchronous hydraulic cylinder 3 and the second synchronous hydraulic cylinder 31 are both filled with hydraulic oil, and the volume ratio of the hydraulic oil is approximately equal to the internal volume of the first synchronous hydraulic cylinder 3 or the second synchronous hydraulic cylinder 31.

[0039] Reference Figure 1-8As shown in this embodiment: a second synchronous hydraulic cylinder 31 is fixedly installed at the diagonal positions on both sides of the outer wall of the cover 11. The two sets of second synchronous hydraulic cylinders 31 are fixed to the outer wall of the cover 11 at a certain tilt angle. The output end of the second synchronous hydraulic cylinder 31 passes through the cover 11 and extends into the interior of the cover 11. A plug rod 311 is fixed to the output end of the second synchronous hydraulic cylinder 31.

[0040] Reference Figure 2-8 As shown in this embodiment: a connecting groove plate 15 is fixed on one side of the outer wall of the shearing device 14. A sliding groove is opened on one side of the outer wall of the connecting groove plate 15. The inner wall of the sliding groove is coated with a wear-resistant coating. One end of the insert rod 311 is inserted into the sliding groove. The insert rod 311 and the sliding groove are slidably connected. When the blade of the shearing device 14 unfolds, it drives the connecting groove plate 15 to rotate and unfold together. At the same time, because the second synchronous hydraulic cylinder 31 is a fixed structure, and the output end of the second synchronous hydraulic cylinder 31 is movable and retractable, when the connecting groove plate 15 rotates and unfolds, the sliding groove can squeeze and drive the insert rod 311 and the output end of the second synchronous hydraulic cylinder 31 to retract, thereby realizing the function of transferring power of the drive component.

[0041] Reference Figure 1-8 As shown in this embodiment: the first synchronous hydraulic cylinder 3 and the second synchronous hydraulic cylinder 31 have the same internal volume, and one end of the first synchronous hydraulic cylinder 3 is connected to one end of the second synchronous hydraulic cylinder 31 through a hydraulic connecting pipe. The output end of the first synchronous hydraulic cylinder 3 is a two-section spliced ​​structure, and the end near the slider 22 is a spring sleeve. The spring sleeve is slidably connected to the output end of the first synchronous hydraulic cylinder 3 (the spring sleeve is equipped with an elastic element). With the help of the spring sleeve, a certain amount of movable space can be reserved for the flipping of the hinge plate 21, preventing the hinge plate 21 from being jammed when squeezed by the shearing devices 14 on both sides (when the spacing of the shearing devices 14 is adjusted), thus ensuring the smooth and stable operation of the equipment.

[0042] Reference Figure 1-5 As shown in this embodiment: two sets of limiting grooves 111 are symmetrically provided on the upper surface of the cover 11. Sliding members 12 are fixed on the upper surface of the two sets of shearing devices 14, and the sliding members 12 and the limiting grooves 111 are slidably connected. The bottom of the sliding member 12 is in the shape of the letter "H". The limiting blocks on both sides of the sliding member 12 are slidably attached to the upper and lower surfaces of the limiting grooves 111, thereby strengthening the limiting of the sliding member 12 and the two sets of shearing devices 14 and ensuring the stability of the adjustment.

[0043] Reference Figure 1-5As shown in this embodiment: the upper surface of the cover 11 is provided with a hydraulic push rod 13 for adjusting the distance between the two sets of shearing devices 14, and the outer walls of the two sets of sliding parts 12 with their tops close to each other are respectively fixed to one end of the hydraulic push rod 13 by multiple sets of bolts. The hydraulic push rod 13 and the two sets of shearing devices 14 are connected to the hydraulic system of the excavator through hydraulic connecting pipes.

[0044] Working principle: First, when the blade of the shearing device 14 opens to cut, the connecting groove plate 15 rotates with the blade of the shearing device 14 and simultaneously squeezes the insert rod 311. The end of the insert rod 311 slides smoothly in the groove of the connecting groove plate 15, reducing mechanical friction loss. During the rotation of the connecting groove plate 15, the output end of the second synchronous hydraulic cylinder 31 is driven to retract inward.

[0045] Next, the hydraulic pressure generated by the retraction of the second synchronous hydraulic cylinder 31 is transmitted to the first synchronous hydraulic cylinder 3 through the hydraulic connecting pipe. The two have the same internal volume and the pipeline is connected. The hydraulic oil flows at a constant speed in the closed pipeline. At this time, the output end of the first synchronous hydraulic cylinder 3 extends downward synchronously, pushing the slider 22 inside the partition 2 to move down along the cross groove 201. The lubricating coating on the inner wall of the cross groove 201 ensures that the slider 22 moves smoothly.

[0046] Note that the output end of the first synchronous hydraulic cylinder 3 is a two-section spliced ​​structure. The end near the slider 22 is a spring sleeve, and the spring sleeve is slidably connected to the output end of the first synchronous hydraulic cylinder 3 (and has an elastic element inside). With the help of the spring sleeve, a certain amount of movable space can be reserved for the flipping of the hinge plate 21, preventing the hinge plate 21 from getting stuck when squeezed by the shearing devices 14 on both sides (when the spacing of the shearing devices 14 is adjusted), thus ensuring the smooth and stable operation of the equipment.

[0047] Immediately afterward, as multiple sets of sliders 22 move down, they drive the connecting rod 23 to rotate. The bearing assemblies at both ends of the connecting rod 23 reduce the rotational resistance, and the connecting rod 23 pushes the hinge plates 21 on both sides of the partition plate 2 to flip outward and unfold (while the connecting rod 23 rotates in the direction away from the partition plate 2, the connecting rod 23 disengages from the groove and cross groove 201 on the surface of the hinge plate 21).

[0048] While the hinge plate 21 flips, the top tooth 211 at its bottom forces the obstacle stuck between the shearing device 14 and the partition plate 2 out. The serrated structure of the top tooth 211 enhances the obstacle removal force. At the same time, the inclined surface of the top of the unfolded hinge plate 21 fits against the outer wall of the shearing device 14, forming a physical isolation barrier. This enables the rapid and high-frequency removal of obstacles stuck in the gap between two adjacent shearing devices 14. The superposition of the "physical barrier" and "high-frequency obstacle removal" can prevent the adjustment operation of the shearing device 14 from being hindered while ensuring the needs of different shearing lengths, thus improving the smoothness of the operation of the shearing device 14.

[0049] Finally, when the blade of the shearing device 14 closes, the connecting slot plate 15 reverses the drive of the second synchronous hydraulic cylinder 31 and the entire obstacle removal assembly to reset. The check valve in the hydraulic system ensures the directional return of hydraulic oil, ensuring that each component accurately returns to its initial position.

[0050] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A cutting device for recycling the inner rear panel of a discarded vehicle, characterized in that, It includes an upper connecting part fixed to one end of the excavator arm, a cover fixed below the upper connecting part, two sets of shearing devices symmetrically and slidingly installed inside the cover, and an obstacle removal component for blocking and clearing obstacles in the gap between the two sets of shearing devices fixed inside the cover. The obstacle removal assembly includes a partition plate fixed to the inner wall of the enclosure and located in the middle of the gap between the two sets of shearing equipment. The outer walls on both sides of the partition plate are hinged with hinge plates for clearing and blocking obstacles in the gap between the two sets of shearing equipment. The inner walls on both sides of the partition plate are slidably installed with sliders. The two sets of sliders are symmetrical. The outer walls on the opposite sides of the two sets of sliders are symmetrically connected with connecting rods. The connecting rods are symmetrical. The end of the connecting rod away from the partition plate is hinged to the hinge plate. The outer wall of the cover is equipped with a drive assembly for indirectly driving the obstacle removal assembly by means of the power generated when shearing with a shearing device. The drive assembly includes two sets of first synchronous hydraulic cylinders symmetrically fixed on the outer wall of the top of the cover. The output end of the first synchronous hydraulic cylinder penetrates the cover downward and extends into the interior of the cross groove. The cover and the partition are provided with sliding holes of matching size at the contact positions with the output ends of the first synchronous hydraulic cylinders. The output ends of the first synchronous hydraulic cylinders are fixed to the upper surface of the slider. A second synchronous hydraulic cylinder is fixedly installed at the diagonal positions on both sides of the outer wall of the cover. The output end of the second synchronous hydraulic cylinder passes through the cover and extends into the interior of the cover. A plug rod is fixed to the output end of the second synchronous hydraulic cylinder. A connecting groove plate is fixed on one side of the outer wall of the shearing device. A sliding groove is opened on one side of the outer wall of the connecting groove plate, and one end of the insert rod is inserted into the sliding groove. The insert rod and the sliding groove are in a sliding connection relationship. The first synchronous hydraulic cylinder and the second synchronous hydraulic cylinder have the same internal volume, and one end of the first synchronous hydraulic cylinder is connected to one end of the second synchronous hydraulic cylinder through a hydraulic connecting pipe. The upper surface of the cover is symmetrically provided with two sets of limiting grooves. The upper surfaces of the two sets of shearing devices are fixed with sliding parts, and the sliding parts are slidably connected to the limiting grooves. The upper surface of the cover is provided with a hydraulic push rod for adjusting the distance between the two sets of shearing devices, and the outer walls of the two sets of sliding parts that are close to each other are respectively fixed to one end of the hydraulic push rod.

2. The cutting device for recycling the rear side panel inner panel of a discarded vehicle according to claim 1, characterized in that: The cross-sectional shape of the slider is cross-shaped, and the partition plate has a cross groove of matching size and shape at the contact position with the two sets of sliders.

3. The cutting device for recycling the rear side panel inner panel of a discarded vehicle according to claim 1, characterized in that: The outer wall of one side of the hinge plate has a groove for storing the connecting rod in the folded state, and the end of the connecting rod away from the partition is rotatably connected to the inner wall of the groove. The size of the connecting rod is slightly smaller than the opening size of the cross groove and the groove.

4. The cutting device for recycling the rear side panel inner panel of a discarded vehicle according to claim 1, characterized in that: The bottom outer wall of the hinge plate is welded with multiple sets of top teeth at equal intervals. The top outer wall of the hinge plate is an inclined surface, and the inclined surface is in contact with one side outer wall of the shearing device when the hinge plate is unfolded.

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