Layered trolley for automatic deviation correction of belt storage bin

Abstract

The invention relates to the field of rubber belt conveying, and discloses a layering trolley for automatic deviation correction of a belt storage bin. The device comprises a frame, a floating frame slidably mounted on a sliding shaft on the inner wall of the frame, a supporting assembly and a stabilizing assembly. The floating frame lifts the belt body through the supporting rollers and generates translational displacement along with deviation of the belt body. The supporting assembly extrudes the resistance sleeve through the eccentric cam-shaped extrusion sleeve when the damping rod swings, so that the damping force is linearly increased along with the increase of the offset, and deviation energy of the belt body is absorbed. The stabilizing assembly moves relative to a piston rod fixed relative to the frame through a piston sleeve fixed to the bottom of the floating frame, and hydraulic oil in a main piston cavity is extruded. The sliding block drives the plugging head to mechanically plug the offset side oil way, hydraulic oil is guided to flow to the opposite side in a one-way mode through the connecting cavity, the auxiliary wheels on the opposite side are driven to extend outwards and press the side wall of the rail, and the reverse torque counteracts the overturning torque generated by gravity center offset. Automatic deviation correction and toppling resistance are achieved through mechanical linkage and hydraulic feedback.

Description

Technical Field

[0001] This invention relates to the field of belt conveying technology, specifically to a layered trolley for automatic belt storage bin correction. Background Technology

[0002] In the belt storage bin system of a stretchable belt conveyor, the layered trolleys are mainly used to support the multi-layered, folded belt within the bin, thereby reducing belt sag. In existing technologies, multiple layered trolleys are typically connected in series via a chain structure to a traveling trolley. The forward and backward movement of the traveling trolley drives the layered trolleys to achieve uniform distribution on the track, thus completing automatic belt distribution and longitudinal correction. The layered trolleys involved in this invention follow the aforementioned multi-trolley series-connected evenly distributed motion logic, but there is room for improvement in the structural stability and adaptive load adjustment of individual trolleys.

[0003] In traditional layered trolleys, the supporting frame and the underlying traveling frame are often rigidly welded or fixedly connected. In this structure, when the belt shifts laterally due to load fluctuations or unstable operation, the resulting lateral impact load is directly transmitted through the supporting frame to the traveling frame and track wheels. Due to the lack of effective mechanical decoupling and buffering mechanisms, lateral forces can easily disrupt the device's force balance, leading to the risk of derailment or even overturning of the trolley.

[0004] Furthermore, existing devices lack kinetic energy dissipation and absorption capabilities in their internal connecting structures when subjected to eccentric load impacts. This leads to persistent mechanical vibrations after belt swaying disturbances, and due to the lack of an effective automatic reset and adjustment mechanism, the device struggles to quickly return to its central equilibrium position after the disturbance disappears. Regarding rollover protection, existing solutions generally rely on increasing the device's weight to maintain passive stability. However, in situations where the center of gravity shifts significantly with eccentric loads, the device's internal mechanisms cannot actively generate a counteracting support force to offset the rollover moment through physical feedback, thus compromising its operational safety in complex environments. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a layered trolley for automatic correction of tape storage bins, which solves the problem of equipment instability and overturning caused by tape misalignment within the storage bin.

[0006] To achieve the above objectives, the present invention provides a layered trolley for automatic correction of storage tape bins: This layered trolley achieves dynamic load buffering through a decoupled design between the frame and the floating frame. The frame serves as the basic support structure, with a transverse horizontal sliding shaft on its inner wall. The floating frame is mounted on the sliding shaft via a sliding sleeve. When the tape in the storage compartment shifts laterally, the floating frame slides relative to the frame along the sliding shaft, converting the lateral impact of the tape on the overall structure into translational displacement of the floating frame.

[0007] To suppress the disorderly swaying of the floating frame, a support assembly connects the frame and the floating frame. This support assembly establishes a mechanical connection using damping rods and pivots at both ends. An eccentrically shaped compression sleeve is fixed to the outer wall of the pivot. When the floating frame slides laterally, causing the damping rods to swing, the pivot rotates accordingly. The eccentric cam structure on its outer wall presses against the resistance sleeve, which is slidably connected within the hinge seat, causing the friction pads on the inner surface of the resistance sleeve to press tightly against the outer circumference of the pivot. This eccentric compression mechanism causes the rotational resistance of the pivot to increase linearly with the increase of the offset angle, thereby achieving adaptive adjustment of motion resistance. This absorbs the offset energy of the belt while preventing the floating frame from violently colliding with the sliding shaft.

[0008] To further enhance the overall structure's anti-rollover capability, the stabilizing component at the bottom of the device achieves dynamic distribution of lateral support forces through hydraulic feedback. The piston sleeve of the stabilizing component is fixed to the lower surface of the floating frame. When the floating frame shifts laterally, the piston sleeve and the piston rod, which is constrained by the baffle and fixed relative to the frame, generate relative movement. This movement compresses the hydraulic oil in the main piston chamber, and the pressure is transmitted through the connecting chamber to the auxiliary piston chamber on the other side, driving the piston rod on the opposite side to extend outward. The extension of the piston rod causes the auxiliary wheel at the end of the support frame to press tightly against the side wall of the sliding track.

[0009] To ensure that hydraulic pressure acts precisely and unidirectionally on the side where the balancing torque is impaired, the stabilizing component integrates a mechanical sealing logic. The slider is fixedly connected to the frame. During the displacement of the floating frame, the slider drives the connecting rod and the sealing heads at both ends to generate relative displacement. The sealing heads, in conjunction with the sealing springs, slide within the connecting cavity, physically sealing the return channel of the main piston chamber on the pressure side, forcing the hydraulic oil to flow unidirectionally to the actuator on the opposite side. Through this displacement-guided pressure transmission mechanism, the load pressure on the offset side is directly converted into the supporting resistance of the auxiliary wheel on the opposite side, achieving dynamic adjustment of the system's center of gravity.

[0010] This technical solution utilizes a fully mechanical physical linkage to achieve automatic deviation correction, requiring no external energy input. Through the coordinated action of damping adjustment of the support components and hydraulic compensation of the stabilizing components, the impact of belt misalignment on the stability of the frame is reduced, while significantly improving the anti-rollover performance of the layered trolley under harsh working conditions. The key mating surfaces of the device undergo hardening treatment and sealing protection to ensure long-term operation in dusty and humid mine environments.

[0011] This invention provides a layered trolley for automatic deviation correction in a storage bin. It has the following beneficial effects: 1. This invention achieves mechanical decoupling between the belt load and the chassis running structure through a sliding connection design between the floating frame and the vehicle frame. When the belt generates a lateral offset force, the impact load is first buffered and released in the relative displacement between the floating frame and the sliding shaft, reducing the possibility of lateral forces acting directly on the entire vehicle frame, thereby reducing the risk of the device overturning due to uneven load distribution.

[0012] 2. The device utilizes an eccentric cam mechanism to achieve linear adjustment of rotational damping. As the offset of the floating frame increases, the damping rod drives the eccentric cam to press against the resistance sleeve, causing the friction plates on its inner surface to press tightly against the rotating shaft, thereby automatically increasing the motion resistance of the mechanism. This physical feedback mechanism can absorb offset energy without external power, suppress violent shaking of the floating frame, and achieve adaptive reset of the belt support structure.

[0013] 3. The stabilizing component, through the cooperation of the hydraulic circuit and the mechanical sealing mechanism, achieves dynamic compensation of the supporting force. The hydraulic pressure generated on the offset side, under the mechanical guidance of the sealing head, is transmitted unidirectionally to the actuator on the opposite side, driving the auxiliary wheel to press against the sidewall of the track. This reverse supporting torque is used to counteract the overturning torque generated by the shift in the center of gravity, ensuring the structural stability and operational safety of the device under high-speed operation or severe oscillation conditions. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a split-down, bottom-view schematic diagram of the present invention; Figure 3 This is a schematic diagram of the piston sleeve disassembled according to the present invention; Figure 4 This is a schematic cross-sectional view of the piston sleeve of the present invention; Figure 5 This is a schematic diagram of the support components of the present invention; Figure 6 This is a schematic diagram showing the breakdown of the support components of the present invention.

[0015] The components are as follows: 1. Frame; 2. Support assembly; 21. Damping rod; 22. Hinge seat; 23. Compression sleeve; 24. Slide rod; 25. Resistance sleeve; 26. Return spring; 27. Hinge sleeve; 28. Rotary shaft; 3. Floating frame; 4. Stabilizing assembly; 41. Support frame; 42. Support seat; 43. Auxiliary wheel; 44. Piston sleeve; 45. Piston rod; 46. Baffle plate; 47. Slider; 48. Main piston chamber; 49. Secondary piston chamber; 410. Connecting chamber; 411. Compression plate; 412. Transmission plate; 413. Compression spring; 414. Connecting rod; 415. Sealing head; 416. Sealing spring; 5. Sliding rail. Detailed Implementation

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example: Please see the appendix Figure 1 - Appendix Figure 6 This invention provides a layered trolley for automatic deviation correction in a storage bin, comprising: The frame 1 is used to support the overall device and consists of two parts: a fixed frame and wheels. The fixed frame is rectangular in shape and made of metal, which has good rigidity. The inner wall of the fixed frame is symmetrically provided with two sets of parallel sliding shafts in the horizontal direction. The wheels are installed on the outside of the frame and are used to move on the upper surface of the sliding track 5. The floating frame 3 is used to provide support for the belt inside the storage bin. The floating frame 3 consists of two parts: the floating frame body and the support roller. The support roller is installed on the inner wall of the floating frame 3 to support the belt. The floating frame 3 is slidably mounted on the sliding shaft on the inner wall of the frame 1 through a sliding sleeve. It can slide left and right on the inner wall of the frame 1 but cannot be separated from the frame 1. Support component 2 is used to connect the frame 1 and the floating frame 3, and to provide support and movement resistance for the floating frame 3. Its resistance can be automatically adjusted as the floating frame 3 moves, and can achieve autonomous protection in non-electric situations. The stabilizing component 4 is located at the connection between the lower surface of the floating frame 3 and the inner wall of the frame 1. It is used to compress the inner wall of the sliding track 5, thereby increasing the overall device's anti-tipping ability. When the overall device is working, the floating frame 3 supports the belt. When the belt in the storage bin moves, the floating frame 3 will also move accordingly. This can reduce the impact of belt movement on the overall device, thereby reducing the probability of the overall device tipping over. Compared with the existing technology where the frame 1 and the floating frame 3 are connected by a fixed installation, this device is less likely to tip over during use.

[0018] The support assembly 2 includes a hinge seat 22, which has multiple sets. One set of hinge seats 22 is located on the outer wall of the frame 1, and another set is located on the upper surface of the floating frame 3. A hinge sleeve 27 is fixedly connected to the inner wall of the hinge seat 22, and a rotating shaft 28 is rotatably connected to the inner wall of the hinge sleeve 27. The two sets of rotating shafts 28 are fixedly connected by a damping rod 21. When the floating frame 3 moves left or right, the damping rod 21 will also swing accordingly. A sliding rod 24 is fixedly connected to the inner wall of the hinge seat 22, and a resistance sleeve 25 is slidably connected to the outer wall of the sliding rod 24. The resistance sleeve 25 can slide up and down on the outer wall of the sliding rod 24. The inner surface of the resistance sleeve 25 is provided with a wear-resistant friction plate. The resistance sleeve 25 is arc-shaped, and the side closest to the rotating shaft 28 is adapted to the shape of the outer wall of the rotating shaft 28. When the resistance sleeve 25 wraps around the outer wall of the rotating shaft 28, the rotation... The rotational resistance of shaft 28 will increase; a compression sleeve 23 is fixedly connected to the outer wall of shaft 28. The cross section of compression sleeve 23 is set as an eccentric cam shape, and its surface near the resistance sleeve 25 is adapted to the shape of resistance sleeve 25. When the damping rod 21 swings, it will drive the compression sleeve 23 to rotate through shaft 28. When the compression sleeve 23 rotates, it will squeeze the resistance sleeve 25 with its eccentric structure, causing it to move downward and squeeze shaft 28. In this way, the rotational resistance of shaft 28 can be increased, and the resistance can be dynamically adjusted. When the floating frame 3 swings only slightly, it will not be affected by the resistance, which can reduce the device shaking caused by the belt swing. The resistance sleeve 25 and the hinge seat 22 are elastically connected by a return spring 26. When the damping rod 21 is reset, the return spring 26 will pull the resistance sleeve 25 away from shaft 28.

[0019] The stabilizing component 4 includes a piston sleeve 44, which is fixedly connected to the lower surface of the floating frame 3. When the floating frame 3 slides left and right, the piston sleeve 44 also moves accordingly. The inner wall of the piston sleeve 44 is provided with a main piston chamber 48, and a piston rod 45 is piston-connected to the inner wall of the main piston chamber 48. A slider 47 is slidably connected through the lower surface of the piston rod 45, and a baffle plate 46 is fixedly connected to the lower surface of the slider 47. The baffle plate 46 is fixedly connected to the inner wall of the frame 1. With this configuration, when the floating frame 3 and the frame 1 move relative to each other, the baffle plate 46, the slider 47, and the piston sleeve 44 will also move relative to each other. The movement causes a change in the internal volume of the main piston chamber 48. The end of the main piston chamber 48 away from the piston sleeve 44 passes through the outer wall of the stabilizing component 4. The end of the piston rod 45 away from the piston sleeve 44 is fixedly connected to the support frame 41. The end of the support frame 41 away from the piston sleeve 44 is fixedly connected to the support seat 42. An auxiliary wheel 43 is installed on the inner wall of the support seat 42. The auxiliary wheel 43 abuts against the outer wall of the sliding rail 5. When the frame 1 moves on the upper surface of the sliding rail 5, the auxiliary wheel 43 can abut against the outer wall of the sliding rail 5 to provide support for the whole device and further reduce the probability of the device tipping over. Two sets of main piston chambers 48, piston rods 45, support frames 41, support seats 42, and auxiliary wheels 43 are respectively provided. These two sets of main piston chambers 48, piston rods 45, support frames 41, support seats 42, and auxiliary wheels 43 are arranged in a rotating array around the center line of the piston sleeve 44. The two sets of main piston chambers 48, piston rods 45, support frames 41, support seats 42, and auxiliary wheels 43 respectively support both sides of the device. The main piston chamber 48 is filled with hydraulic oil, which supports the piston rod 45 and prevents it from moving arbitrarily. A secondary piston chamber 49 is located on the side of the main piston chamber 48 away from the piston rod 45. When the piston rod 45 moves into the main piston chamber 48, it squeezes the hydraulic oil inside the main piston chamber 48, forcing the oil into the secondary piston chamber 49. The secondary piston chamber 49 is connected to the other set of main piston chambers 48 through a connecting cavity 410. When the hydraulic oil inside one set of main piston chambers 48 is squeezed... The hydraulic oil inside the main piston chamber 48 enters the auxiliary piston chamber 49 connected to the main piston chamber 48 through the connecting cavity 410. The main piston chamber 48 is connected to the transmission plate 412 and the pressing plate 411 in sequence from the inside to the outside. The transmission plate 412 and the pressing plate 411 are elastically connected by the pressing spring 413. When hydraulic oil is poured into the auxiliary piston chamber 49, the hydraulic oil will press the transmission plate 412 to force it to move outward. The outward movement of the transmission plate 412 will press the pressing plate 411 outward through the pressing spring 413. The outward movement of the pressing plate 411 will press the hydraulic oil inside the main piston chamber 48. In this way, the hydraulic oil will push the piston rod 45 to move outward. The outward movement of the piston rod 45 will drive the support frame 41 to move outward, thereby driving the auxiliary wheel 43 to press the outer wall of the sliding track 5. In this way, when the floating frame 3 moves to one side of the device, it can increase the resistance between the device and the sliding track 5 on the other side and prevent the device from tipping over. A connecting rod 414 is slidably connected through the inner wall of slider 47. A set of sealing heads 415 are fixedly connected to the left and right ends of the connecting rod 414. The two sets of sealing heads 415 are slidably connected through the inner walls of the two connecting cavities 410. The connecting cavities 410 and the outer wall of slider 47 are elastically connected by sealing springs 416. When the floating frame 3 moves to one side, since slider 47 is fixedly connected to the frame 1 by a baffle plate 46, slider 47 will move relative to piston sleeve 44 to the other side. When slider 47 moves, it will compress the sealing springs 416, causing the sealing heads 415 to move. When the sealing heads 415 move, they will block the main... The connecting chamber 410 connected to the piston chamber 48 ensures that the hydraulic oil on the pressurized side can only flow precisely to the opposite chamber that needs enhanced support through this mechanical physical locking. At the same time, the slider 47 will pull another set of sealing heads 415 to move through another set of sealing springs 416, thereby connecting the other connecting chamber 410. By moving the slider 47, the two connecting chambers 410 can be connected individually, thereby stabilizing the pressurization. All parts of the device involving hydraulic sliding are equipped with corrosion-resistant sealing rings, and the contact surface between the metal sliding track 5 and the auxiliary wheel 43 is nitrided to adapt to the extreme environment of high humidity and high dust in the mine.

[0020] Working Principle: During the operation of the entire device, the belt in the storage bin is supported by the support rollers on the floating frame 3. When the belt undergoes lateral displacement due to load fluctuations or offset, the floating frame 3 uses a sliding sleeve to slide synchronously left and right on the sliding shaft on the inner wall of the frame 1, thereby releasing the direct impact load of the belt on the frame 1. During this process, the support assembly 2 swings along with the damping rod 21 between the two sets of rotating shafts 28, and drives the eccentric cam-shaped compression sleeve 23 on the outer wall of the rotating shaft 28 to rotate synchronously. When the offset increases, the eccentric protrusion of the compression sleeve 23 compresses the resistance sleeve 25 and moves it down along the sliding rod 24, causing the wear-resistant friction plate on its inner surface to tightly press the rotating shaft 28, thereby automatically and linearly increasing the rotational resistance. This non-electrically controlled damping adjustment mechanism can autonomously adjust the resistance according to the displacement of the floating frame 3, achieving flexible restriction and kinetic energy absorption of the belt's swing.

[0021] As the floating frame 3 moves further into lateral displacement, the piston sleeve 44 fixed to its lower surface moves synchronously, causing relative displacement between the main piston chamber 48 and the piston rod 45, which is constrained by the baffle plate 46 and fixed relative to the frame 1. This, in turn, compresses the hydraulic oil inside the main piston chamber 48. At this time, the slider 47 remains relatively fixed with the frame 1, causing relative sliding between the sealing heads 415 at both ends of the connecting rod 414 and the connecting cavity 410 on the piston sleeve 44. With the assistance of the sealing spring 416, the sealing heads 415 physically block the passage between the main piston chamber 48 and the connecting cavity 410 on the currently offset pressure side, while forcibly connecting the oil circuit on the other side. This mechanical locking logic ensures that the hydraulic oil on the pressure side can only flow precisely and unidirectionally to the other side, converting the offset pressure on one side into the execution power on the other side through the internal hydraulic circuit, thus avoiding disordered convection of pressure within the system.

[0022] The compressed hydraulic oil enters the auxiliary piston chamber 49 on the opposite side through the connecting chamber 410, pushing the transmission plate 412 and transmitting the pressure buffer to the compression plate 411 through the compression spring 413. This compresses the oil in the main piston chamber 48 on that side, pushing the corresponding piston rod 45 to extend outward. The extension of the piston rod 45 drives the auxiliary wheel 43 to forcefully compress the outer wall of the sliding track 5 through the support frame 41 and support seat 42, using the reverse force to compensate for the overturning moment caused by the shift in the center of gravity. Through this dynamic response process of converting "offset pressure" into "support resistance", combined with the contact surface of the corrosion-resistant sealing ring and the nitrided auxiliary wheel 43, the stabilizing component 4 significantly improves the overall device's anti-rollover capability under high humidity and dust conditions in the mine, ensuring that the frame 1 operates smoothly and safely on the sliding track 5.

[0023] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A layered trolley for automatic deviation correction in a storage bin, characterized in that, include: A frame (1) is used to support the overall device, and its bottom is provided with wheels for moving on the surface of the sliding track (5); a floating frame (3) is slidably mounted on a sliding shaft provided on the inner wall of the frame (1) through a sliding sleeve, and a support roller for supporting the belt is provided inside the floating frame (3); a support assembly (2) is connected between the frame (1) and the floating frame (3) and is used to provide the floating frame (3) with moving resistance that is automatically adjusted with displacement; a stabilizing assembly (4) is provided at the connection between the floating frame (3) and the frame (1) and is used to squeeze the side wall of the sliding track (5).

2. The layered trolley for automatic deviation correction of a storage bin according to claim 1, characterized in that, The support assembly (2) includes two sets of hinge seats (22) respectively disposed on the frame (1) and the floating frame (3). The two sets of hinge seats (22) are connected by a damping rod (21). Both ends of the damping rod (21) are fixedly connected to a rotating shaft (28). The rotating shaft (28) is rotatably connected to a hinge sleeve (27) fixed to the inner wall of the hinge seat (22).

3. The layered trolley for automatic deviation correction of a storage bin according to claim 2, characterized in that, The inner wall of the hinge seat (22) is fixedly connected to a slide rod (24), and the outer wall of the slide rod (24) is slidably connected to an arc-shaped resistance sleeve (25). The inner surface of the resistance sleeve (25) is provided with a wear-resistant friction plate and is adapted to the outer wall of the rotating shaft (28). The outer wall of the rotating shaft (28) is fixedly connected to a compression sleeve (23). The cross section of the compression sleeve (23) is set to an eccentric cam shape. The eccentric cam-shaped compression sleeve (23) is used to compress the resistance sleeve (25) to move along the slide rod (24) toward the axis of the rotating shaft (28) when the rotating shaft (28) rotates. The resistance sleeve (25) and the hinge seat (22) are elastically connected by a return spring (26).

4. The layered trolley for automatic deviation correction of a storage bin according to claim 1, characterized in that, The stabilizing component (4) includes a piston sleeve (44) fixedly connected to the lower surface of the floating frame (3). The inner wall of the piston sleeve (44) is provided with a main piston chamber (48). The inner wall of the main piston chamber (48) is piston-connected to a piston rod (45). The end of the piston rod (45) away from the piston sleeve (44) is fixedly connected to a support frame (41). The end of the support frame (41) is equipped with an auxiliary wheel (43) through a support seat (42). The auxiliary wheel (43) abuts against the outer wall of the sliding track (5).

5. A layered trolley for automatic deviation correction of a storage bin according to claim 4, characterized in that, The piston rod (45) has a slider (47) that is slidably connected through its outer wall. The slider (47) is fixedly connected to the inner wall of the frame (1) by a baffle plate (46).

6. The layered trolley for automatic deviation correction of a storage bin according to claim 5, characterized in that, The main piston chamber (48), the piston rod (45), and the auxiliary wheel (43) are each provided in two sets. The two sets of main piston chambers (48) are symmetrically arranged with the center line of the piston sleeve (44) as the reference. A secondary piston chamber (49) is provided on the side of the main piston chamber (48) away from the piston rod (45). The two sets of main piston chambers (48) are respectively connected to their corresponding secondary piston chambers (49), and the two sets of secondary piston chambers (49) are interconnected through the connecting cavity (410).

7. A layered trolley for automatic deviation correction of a storage bin according to claim 6, characterized in that, Inside the main piston chamber (48), a transmission plate (412) and a pressing plate (411) are connected sequentially from the inside to the outside. The transmission plate (412) and the pressing plate (411) are elastically connected by a pressing spring (413). The hydraulic oil in the auxiliary piston chamber (49) is used to push the transmission plate (412) to move, and the pressing plate (411) is driven by the pressing spring (413) to press the hydraulic oil in the main piston chamber (48) to push the piston rod (45) to extend outward.

8. A layered trolley for automatic deviation correction of a storage bin according to claim 6, characterized in that, The inner wall of the slider (47) is slidably connected to a connecting rod (414), and the two ends of the connecting rod (414) are respectively fixedly connected to a sealing head (415). The sealing head (415) is slidably connected to the inner wall of the connecting cavity (410). The connecting cavity (410) and the outer wall of the slider (47) are elastically connected by a sealing spring (416).

9. A layered trolley for automatic deviation correction of a storage bin according to claim 8, characterized in that, The slider (47) is used to move the sealing head (415) in the connecting cavity (410) when the floating frame (3) is displaced relative to the frame (1), so as to block the passage between the main piston cavity (48) on the offset side and the connecting cavity (410).

10. A layered trolley for automatic deviation correction of a storage bin according to any one of claims 1-9, characterized in that, The piston sleeve (44) and the piston rod (45) have a corrosion-resistant sealing ring on their mating surfaces, and the auxiliary wheel (43) and the sliding track (5) have undergone surface nitriding treatment.

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