A segmented hydraulic device for rail system lifting

Abstract

The application discloses a sectional hydraulic device for track system lifting, and relates to the technical field of lifting devices, which comprises a mounting frame, a lifting mounting frame is slidably connected to the mounting frame, a loading frame is arranged at the bottom of the lifting mounting frame, a lifting broken rail is arranged at the top of the loading frame, a pair of connecting rods are arranged between the lifting broken rail and the lifting mounting frame, a pair of moving rails are arranged at the outer side of the lifting broken rail, and the close sides of the pair of moving rails are not in contact with the two sides of the lifting broken rail, respectively. Through the cooperative transmission of the hydraulic drive device, the hydraulic cylinder, the moving frame, the three transmission connecting rods, the transmission sprocket and the transmission chain in the transmission lifting mechanism, the stable guiding assistance of the lifting roller and the sliding circular block is matched, the lifting mounting frame is driven to stably lift under heavy load, there is no shaking and no jamming, and the limit position protection is formed by the up and down limit travel of the pair of mechanical limit switches, so that the overtravel risk in the lifting process is avoided.

Description

Technical Field

[0001] This invention belongs to the field of lifting device technology, and in particular relates to a segmented hydraulic device for lifting track systems. Background Technology

[0002] A lifting device is a general-purpose mechanical device used for vertical or inclined material, equipment, or personnel transfer. Its core function is to overcome spatial height differences, achieving efficient and safe material flow or position adjustment. The track system is a fixed horizontal track structure that works in conjunction with the lifting device in the three-dimensional process layout of fermentation production. Its core is a fixed moving track within the plant area, serving as the core channel for horizontal material transfer and a key docking benchmark for connecting vertical lifting and horizontal transfer processes. It works in conjunction with the movable lifting rails of the lifting device to complete the "horizontal-vertical-horizontal" cross-height material transfer. In the fermentation industry, lifting devices are common equipment. In fermented food production, raw materials (such as soybeans and flour) and fermented semi-finished products (such as soy sauce and fermented soybean curd) are often transferred in batches, with a single transfer weight reaching 1.5 tons and a transfer distance of over 3.6 meters (suitable for tall plants). Manual labor or simple tools are completely incapable of completing such heavy-load, long-stroke transfers. Professional lifting devices (such as hydraulic transmission types) can provide stable driving force, working in conjunction with the track system to achieve efficient flow of batch materials, supporting large-scale production.

[0003] Currently, most existing lifting devices use electric equipment in conjunction with a single sprocket and chain to drive the lifting of the vehicle. However, in the high salt spray and high humidity environments of fermented food production, the core electrical components and internal precision circuits are more sensitive to high salt spray and high humidity, making them prone to corrosion and affecting their use. Furthermore, the uneven power transmission from a single sprocket and chain can easily lead to chain loosening and sprocket wear under a 1.5-ton heavy load, resulting in vibration and uneven speed during the lifting process. To adapt to the three-dimensional process layout of the factory, transitional structures such as movable broken rails and fixed rails are often used to connect vertical lifting and horizontal transport. However, the existing broken rail technology... During the process of docking with the fixed track, manual observation or a single mechanical limit is often relied upon. The flushing error between the broken rail surface and the track surface is large, which affects the docking stability and horizontal transfer effect. Moreover, the trolley fixing on the lifting device is mostly based on a single stop or simple clamp, which can only restrict the movement of the trolley in one direction. When the trolley is transported up and down, there is a safety hazard of it slipping off the broken rail of the lifting machine. In addition, the existing lifting device has poor compatibility with the track system and lacks automatic leveling function. It cannot automatically compensate for the height deviation caused by installation errors, working condition deformation and equipment wear, which can easily lead to a height difference between the lifting surface and the track surface, affecting the continuity of material transfer. Therefore, this invention proposes a segmented hydraulic device for lifting track systems. Summary of the Invention

[0004] This invention provides a segmented hydraulic device for lifting track systems. Through the coordinated transmission of a hydraulic drive unit, hydraulic cylinder, moving frame, three transmission rods, transmission sprockets, and transmission chain in the lifting mechanism, coupled with the stabilizing guidance of lifting rollers and sliding blocks, the lifting mounting frame maintains stable lifting and lowering under heavy loads without shaking or jamming. Simultaneously, a pair of mechanical limit switches provide extreme limit protection by setting upper and lower travel limits, preventing overtravel risks during lifting. Dual detection by a first and second infrared photoelectric switch, combined with real-time height feedback from a distance transmission plate, reduces positioning errors and significantly improves the alignment of the lifting track and the pair of moving tracks. Furthermore, the use of hydraulic equipment in the lifting mechanism reduces sensitivity compared to electric equipment in the high-salt-spray and high-humidity environments of fermented food production, and enhances corrosion resistance. It offers enhanced stability; through the coordinated action of the first cylinder, stop block, second cylinder, clamping rod, and car-mounting stop rod in the clamping mechanism, the lifting mounting frame is fixed in both lateral and rotational dimensions, making it less prone to slippage or tipping during vertical transportation; through the adaptation and cooperation between the lifting device and the track system, relying on the closed-loop control system formed by the photoelectric detection module, height feedback module, and hydraulic drive system, automatic leveling of the lifting surface (top surface of the lifting rail) and the track surface (top surface of the moving track) is achieved. The relative height between the two can be detected in real time and the lifting stroke of the lifting mounting frame can be precisely controlled, automatically compensating for height deviations caused by installation errors, working condition deformation, and equipment wear, always ensuring that the lifting surface and the track surface are precisely aligned, effectively improving the compatibility between the lifting device and the track system, ensuring the smoothness and continuity of horizontal material transfer, and thus solving the problems in the background technology.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] The present invention provides a segmented hydraulic device for lifting a track system, comprising:

[0007] The mounting frame has a sliding connection to a lifting mounting frame. The bottom of the lifting mounting frame is equipped with a loading frame, and the top of the loading frame is equipped with a lifting rail. A pair of connecting rods are installed between the lifting rail and the lifting mounting frame. A pair of moving tracks are provided on the outside of the lifting rail. The sides of the pair of moving tracks that are close to each other do not contact the two sides of the lifting rail.

[0008] The transmission lifting mechanism and the clamping mechanism are provided, wherein the transmission lifting mechanism is mounted on the mounting frame and the clamping mechanism is mounted on the lifting mounting frame.

[0009] The transmission lifting mechanism includes a hydraulic drive device installed on the inner wall of the mounting frame. The output end of the hydraulic drive device is equipped with a matching hydraulic cylinder. The output end of the hydraulic cylinder is connected to a movable frame via a coupling. The mounting frame contains three transmission rods, and each of the three transmission rods has a transmission sprocket fitted onto its outer wall. One pair of transmission rods is rotatably connected to the inner wall of the mounting frame via bearings, and the other transmission rod is rotatably connected to the inner wall of the movable frame via bearings. A pair of connecting seats are fixedly connected to the side of the lifting mounting frame away from the loading frame, and each pair of connecting seats has a guide opening. A transmission chain is meshed between the three transmission sprockets on the same side, and one end of the transmission chain passes through the guide opening on the connecting seat and is fixedly connected to a connecting collar. A pair of U-shaped fixing rods are fixedly connected to the side of the lifting mounting frame away from the loading frame, and the connecting collar is fitted onto the outer wall of the U-shaped fixing rods.

[0010] Furthermore, the bottom of the lifting rail is provided with a connecting frame, and the top of the connecting frame passes through the gap of the lifting rail and extends to its top. A movable roller is rotatably connected to the connecting frame, and the outer wall of the movable roller makes rolling contact with the outer wall of the lifting rail and a pair of movable rails respectively.

[0011] Furthermore, a pair of lifting rollers and sliding blocks are fixedly connected to both sides of the lifting mounting frame and the movable frame, and the pair of lifting rollers and sliding blocks are located inside the mounting frame. The pair of lifting rollers are respectively located on top of the pair of sliding blocks, and the pair of lifting rollers are in rolling contact with the inner wall of the mounting frame on the side away from the movable frame. The outer walls of the pair of sliding blocks are respectively in sliding contact with the inner walls of both sides of the mounting frame.

[0012] Furthermore, a connecting plate is fixedly connected to one side of each of the pair of moving tracks, and a pair of first infrared photoelectric switches arranged vertically are fixedly connected to the side of the connecting plate near the lifting broken rail, with the detection end of the first infrared photoelectric switch facing the lifting broken rail.

[0013] Furthermore, a pair of distance transmission plates are provided on the outer side of the lifting mounting frame, and when the top of the pair of moving rails is flush with the top of the lifting rail, the distance transmission plates are located between the detection ends of a pair of first infrared photoelectric switches, and a second infrared photoelectric switch is fixedly connected to the bottom of the distance transmission plates, with the detection end of the second infrared photoelectric switch facing the bottom.

[0014] Furthermore, a pair of mechanical limit switches, arranged vertically, are fixedly connected to one inner wall of the mounting frame, and both mechanical limit switches are located on one side of the lifting roller.

[0015] Furthermore, the clamping mechanism includes a pair of first cylinders, each mounted on a lifting mounting frame. Each pair of first cylinders has a stop block fixedly connected to its output end, and the stop blocks extend to be located on either side of the moving roller. The opposite sides of the pair of first cylinders are fixedly connected to one side of a pair of distance transmission plates. One side of the lifting rail is fixedly connected to a second cylinder, and the output end of the second cylinder is fixedly connected to a connecting straight plate. A pair of triangular connecting rods are provided at the bottom of the second cylinder, and an inclined connecting rod is connected to the top of the pair of triangular connecting rods and the bottom of the connecting straight plate via a bearing and rotation. Clamping rods are fixedly connected to the outer walls of each pair of triangular connecting rods, and a car-mounting stop bar is sleeved on the outer wall of the clamping rod.

[0016] The present invention has the following advantages over the prior art:

[0017] (1) Smooth transmission and overtravel protection: This technical solution uses the coordinated transmission of the hydraulic drive device, hydraulic cylinder, moving frame, three transmission rods, transmission sprocket and transmission chain in the transmission lifting mechanism, combined with the stable guidance of lifting rollers and sliding blocks, to drive the lifting installation frame to maintain smooth lifting under heavy load, without shaking or jamming. At the same time, the upper and lower limit strokes of a pair of mechanical limit switches form extreme limit protection to avoid overtravel risk during the lifting process.

[0018] (2) Flush detection and corrosion resistance: This technical solution uses dual detection of the first infrared photoelectric switch and the second infrared photoelectric switch, combined with the real-time height feedback of the distance transmission plate, to reduce positioning error and greatly improve the flushness of the lifting rail and a pair of moving rails. At the same time, the hydraulic equipment is used in the transmission lifting mechanism to realize the lifting transmission. Under the high salt spray and high humidity characteristics of the fermented food production environment, the sensitivity is lower than that of electric equipment and the corrosion resistance is stronger.

[0019] (3) Lifting clamp and limit protection: This technical solution uses the coordinated action of the first cylinder, the stop block, the second cylinder, the clamping rod and the car frame stop bar in the clamping mechanism to fix the lifting mounting frame in both horizontal and rotational dimensions, so that the lifting mounting frame is less likely to slip or overturn during up and down transportation.

[0020] (4) Leveling of the lifting surface and the track surface: The lifting device in this technical solution is adapted to the track system. Relying on the closed-loop control system formed by the photoelectric detection module, the height feedback module and the hydraulic drive system, the lifting surface (the top surface of the lifting broken rail) and the track surface (the top surface of the moving track) are automatically leveled. The relative height between the two can be detected in real time and the lifting stroke of the lifting mounting frame can be accurately controlled. The height deviation caused by installation error, working condition deformation and equipment wear is automatically compensated, and the lifting surface and the track surface are always accurately leveled. This effectively improves the docking and compatibility between the lifting device and the track system and ensures the smoothness and continuity of the horizontal transfer of materials.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a segmented hydraulic device for lifting a track system according to the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 This is a partial three-dimensional structural diagram of a segmented hydraulic device for lifting a track system according to the present invention;

[0026] Figure 4 This is a partial three-dimensional structural schematic diagram from another perspective of a segmented hydraulic device for lifting a track system according to the present invention.

[0027] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 This is a partial three-dimensional structural diagram of the lifting rail break, the moving rail, the first infrared photoelectric switch, and the second infrared photoelectric switch in this invention.

[0029] Figure 7 This is a partial three-dimensional structural diagram of the mounting frame and transmission lifting mechanism in this invention;

[0030] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C;

[0031] Figure 9 This is a partial three-dimensional structural diagram of the lifting mounting frame and transmission lifting mechanism in this invention;

[0032] Figure 10 This is a partial three-dimensional structural diagram of the movable roller and clamping mechanism in this invention;

[0033] Figure 11 This is a bottom view of the lifting rail breaking and clamping mechanism in this invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Mounting frame; 2. Lifting mounting frame; 3. Loading frame; 4. Connecting rod; 5. Lifting rail break; 6. Moving rail; 7. Moving roller; 8. Connecting frame; 9. Connecting seat; 10. Transmission lifting mechanism; 1001. Hydraulic drive device; 1002. Hydraulic cylinder; 1003. Moving frame; 1004. Transmission rotating rod; 1005. Transmission sprocket; 1006. Transmission chain; 1007. Connecting collar; 1008. U-shaped fixing rod; 10 09. Lifting roller; 10010. Sliding block; 11. Clamping mechanism; 1101. First cylinder; 1102. Stop block; 1103. Second cylinder; 1104. Connecting straight plate; 1105. Inclined connecting rod; 1106. Triangular connecting rod; 1107. Clamping rod; 1108. Car frame stop bar; 12. Connecting plate; 13. First infrared photoelectric switch; 14. Distance transmission plate; 15. Second infrared photoelectric switch; 16. Mechanical limit switch. Detailed Implementation

[0036] The technical solutions of 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.

[0037] In the description of this invention, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Specific Implementation Example 1:

[0039] Please see Figures 1-11 As shown, a segmented hydraulic device for lifting a track system according to the present invention includes:

[0040] Mounting frame 1, with a lifting mounting frame 2 slidably connected to the mounting frame 1. The bottom of the lifting mounting frame 2 is provided with a loading frame 3, and the top of the loading frame 3 is provided with a lifting rail 5. A pair of connecting rods 4 are installed between the lifting rail 5 and the lifting mounting frame 2. A pair of moving rails 6 are provided on the outside of the lifting rail 5. The side of the pair of moving rails 6 that are close to each other does not contact the two sides of the lifting rail 5.

[0041] The transmission lifting mechanism 10 and the clamping mechanism 11 are provided. The transmission lifting mechanism 10 is mounted on the mounting frame 1, and the clamping mechanism 11 is mounted on the lifting mounting frame 2.

[0042] The transmission lifting mechanism 10 includes a hydraulic drive device 1001 mounted on the inner wall of the mounting frame 1. The output end of the hydraulic drive device 1001 is equipped with a matching hydraulic cylinder 1002. The output end of the hydraulic cylinder 1002 is connected to a movable frame 1003 via a coupling. Three transmission rods 1004 are installed inside the mounting frame 1, and each of the three transmission rods 1004 has a transmission sprocket 1005 sleeved on its outer wall. One pair of transmission rods 1004 are rotatably connected to the inner wall of the mounting frame 1 via bearings, and the other transmission rod 1004 is rotatably connected to the inner wall of the mounting frame 1 via a bearing. The lifting mounting frame 2 is connected to the inner wall of the movable frame 1003. A pair of connecting seats 9 are fixedly connected to the side of the lifting mounting frame 2 away from the loading frame 3. Each pair of connecting seats 9 has a guide opening. A transmission chain 1006 is meshed between three transmission sprockets 1005 located on the same side. One end of the transmission chain 1006 passes through the guide opening on the connecting seat 9 and is fixedly connected to a connecting collar 1007. A pair of U-shaped fixing rods 1008 are fixedly connected to the side of the lifting mounting frame 2 away from the loading frame 3. The connecting collar 1007 is sleeved on the outer wall of the U-shaped fixing rods 1008.

[0043] In the specific implementation process, the installation frame 1 provides a fixed support foundation for the entire device. It is made of welded steel structure and serves as the installation carrier for all components. The lifting mounting frame 2 is connected to the inside of the installation frame 1 through a sliding fit and can slide up and down along the vertical direction of the installation frame 1. The loading frame 3 is fixed to the bottom of the lifting mounting frame 2 and is used to carry the material to be lifted. The lifting rail 5 is fixedly connected to the lifting mounting frame 2 through a pair of connecting rods 4 and rises and falls synchronously with the lifting mounting frame 2. The moving rails 6 on both sides of the lifting rail 5 are fixedly set (the fixing method is a conventional design in the field of industrial rail installation, without specific limitations, and can be flexibly selected according to the actual needs of the fermentation workshop layout, heavy-load conditions (single transfer weight can reach 1.5 tons), such as being fixed to the installation frame 1 by metal brackets). Its top surface (rail surface) is flush with the top surface (lifting surface) of the lifting rail 5. (In this implementation, the pair of moving rails 6 are located above the lifting rail 5 (vertical angle, as shown in the instruction manual). Figure 4After the lifting rail 5 is lifted and moves upward to the target height, and after precise leveling and calibration by the dual detection of the first infrared photoelectric switch 13 and the second infrared photoelectric switch 15 and the cooperation of the track system, the top surface (lifting surface) of the lifting rail 5 is flush with the top surface (track surface) of the pair of moving rails 6. The moving rails 6 and the two sides of the lifting rail 5 maintain a gap (the gap value is controlled at 0.5-1mm, which is a gap design in the transition fit, which not only ensures that the lifting rail 5 can rise and fall freely, but also avoids the deviation during material transfer, and reduces the accumulation of salt spray and water vapor in the gap), avoiding frictional interference during the lifting process. The moving rails 6 serve as a fixed channel for horizontal material transfer, and the lifting rail 5 serves as a transitional channel that can be raised and lowered. The two work together to realize the material transfer connection of "horizontal-vertical-horizontal".

[0044] After the hydraulic drive device 1001 is started, it drives the matching hydraulic cylinder 1002 to perform telescopic movement. The output end of the hydraulic cylinder 1002 is fixedly connected to the movable frame 1003 through a coupling, driving the movable frame 1003 to move synchronously along the inside of the mounting frame 1. Three transmission rods 1004 are respectively rotatably connected to two inner walls of the mounting frame 1 and one inner wall of the movable frame 1003 through bearings. The transmission sprocket 1005 on its outer wall meshes with the transmission chain 1006 to form a transmission chain. One end of the transmission chain 1006 passes through the guide port of the connecting seat 9 and is sleeved on the outer wall of the U-shaped fixed rod 1008 through the connecting collar 1007 to achieve connection with the lifting mounting frame 2. When the movable frame 1003 moves, it drives the transmission rods 1004 and transmission sprocket 1005 on it to move. Through the tension or thrust of the transmission chain 1006, the lifting mounting frame 2 is driven to move up and down along the mounting frame 1 to complete the lifting action.

[0045] It is worth noting that in this embodiment, the hydraulic drive device 1001 is a power device that uses hydraulic oil as the working medium, converts the mechanical energy of the motor into hydraulic energy through a power element (hydraulic pump), then adjusts the pressure, flow and direction of the hydraulic oil through a control element (control valve group), and finally converts the hydraulic energy into mechanical energy through an actuator (hydraulic cylinder 1002). Its core components include: oil pump motor, gear pump, standard oil tank, control valve group (relief valve, solenoid directional valve, pressure holding valve, etc.), oil pipe joints, etc. This device belongs to the known common knowledge and mature technology in the prior art, and is widely used in industrial heavy-duty lifting, engineering machinery, machine tool equipment and other fields. It will not be described in detail here. Moreover, the core of the hydraulic equipment is the mechanical hydraulic components such as oil cylinder, oil pipe, and valve group. The materials are mostly metals. Corrosion problems can be solved by selecting corrosion-resistant materials and anti-corrosion coatings. The sealing design is more mature. In the high salt spray and high humidity characteristics of fermented food production environment, it is less sensitive than electric equipment and has stronger corrosion resistance.

[0046] It is worth noting that in this embodiment, the components such as the mounting frame 1, lifting mounting frame 2, loading frame 3, connecting rod 4, lifting rail 5, moving rail 6, connecting frame 8, connecting seat 9, and moving frame 1003 are all made of SUS316 stainless steel, and the surface is coated with an anti-corrosion coating (such as food-grade fluorocarbon coating) to enhance the resistance to salt spray corrosion. The bearings are sealed stainless steel bearings (model SS6204-2RS) to prevent salt spray from penetrating into the bearing.

[0047] The bottom of the lifting rail 5 is provided with a connecting frame 8, and the top of the connecting frame 8 passes through the gap of the lifting rail 5 and extends to its top. A movable roller 7 is rotatably connected to the connecting frame 8, and the outer wall of the movable roller 7 rolls in contact with the outer wall of the lifting rail 5 and a pair of movable rails 6 respectively.

[0048] When the material is transferred from the moving track 6 to the lifting track 5, the moving roller 7 rolls and contacts the top surface of both the lifting track 5 and the moving track 6, forming a transition support; the material is smoothly transferred to the lifting track 5 through the moving roller 7, completing the horizontal transfer; during the lifting process, the moving roller 7 moves synchronously with the lifting track 5, without affecting the lifting action.

[0049] The lifting mounting frame 2 and the movable frame 1003 are each fixedly connected to a pair of lifting rollers 1009 and sliding blocks 10010. The pair of lifting rollers 1009 and sliding blocks 10010 are located inside the mounting frame 1. The pair of lifting rollers 1009 are located on top of the pair of sliding blocks 10010. The pair of lifting rollers 1009 are in rolling contact with the inner wall of the mounting frame 1 on the side away from the movable frame 1003. The outer walls of the pair of sliding blocks 10010 are slidably attached to the inner walls of the two sides of the mounting frame 1.

[0050] During the lifting process, the lifting roller 1009 rolls in contact with the inner wall of the mounting frame 1 on the side away from the moving frame 1003, reducing the frictional resistance of vertical movement; at the same time, the outer wall of the sliding block 10010 slides against the inner walls on both sides of the mounting frame 1, restricting the lateral displacement of the lifting mounting frame 2 and the moving frame 1003; the two work together to form a double guiding constraint, ensuring that the lifting mounting frame 2 rises and falls smoothly along the vertical direction of the mounting frame 1 without deviation or swaying;

[0051] Furthermore, under heavy loads, the total weight of the lifting mounting frame 2 and the materials is borne by the transmission chain 1006, and the lifting roller 1009 also shares part of the longitudinal load, while the sliding block 10010 shares the lateral force generated by the off-center load, forming a load-distributing system of "chain as the main load-bearing element + roller / slider as the auxiliary load-bearing element". This design significantly reduces the tensile stress of the transmission chain 1006 and the shear stress of the connecting seat 9, avoiding fatigue damage to a single component due to overload (such as breakage of the transmission chain 1006 or deformation of the connecting seat 9).

[0052] One of the pairs of moving rails 6 is fixedly connected to one side of a connecting plate 12, and a pair of first infrared photoelectric switches 13 arranged vertically are fixedly connected to the side of the connecting plate 12 near the lifting rail 5, with the detection end of the first infrared photoelectric switch 13 facing the lifting rail 5.

[0053] When the lifting rail 5 is not aligned with the moving rail 6, the distance transfer plate 14 is located outside the U-shaped groove of a pair of first infrared photoelectric switches 13 (Omron E3Z-G61-W, U-shaped groove corrosion-resistant type). The transmitter and receiver of the first infrared photoelectric switches 13 are connected and no detection is triggered. When the lifting mounting frame 2 is raised to the target height, the top of the lifting rail 5 is aligned with the top of the moving rail 6. At this time, the distance transfer plate 14 is inserted into the U-shaped groove of the pair of first infrared photoelectric switches 13, blocking the infrared signal. The first infrared photoelectric switches 13 immediately send a "rail alignment" signal to the external controller (such as PLC), which controls the hydraulic drive device 1001 to stop working and the hydraulic cylinder 1002 to lock the position, ensuring that the lifting rail 5 is precisely aligned with the moving rail 6, thus preparing for material transfer.

[0054] Among them, a pair of distance transmission plates 14 are provided on the outer side of the lifting mounting frame 2, and the top of the pair of moving rails 6 are aligned with the top of the lifting rail 5. The distance transmission plates 14 are located between the detection ends of a pair of first infrared photoelectric switches 13, and a second infrared photoelectric switch 15 is fixedly connected to the bottom of the distance transmission plates 14, with the detection end of the second infrared photoelectric switch 15 facing the bottom.

[0055] The second infrared photoelectric switch 15 (3Z-LS63-W, waterproof and salt spray resistant type) continuously emits infrared signals towards the ground with its detection end facing the bottom, providing real-time feedback on the current height data of the lifting mounting frame 2 and transmitting it to the PLC controller. During the lifting process, the second infrared photoelectric switch 15 continuously emits infrared signals towards the ground, calculates the real-time height of the lifting mounting frame 2 by detecting the signal reflection time, and transmits the height data to the PLC controller. The PLC controller, in conjunction with the detection signal of the first infrared photoelectric switch 13, performs dual calibration on the lifting height of the lifting mounting frame 2, forming an automatic leveling closed-loop control that coordinates the lifting device and the track system. If a height deviation is detected between the top surface (lifting surface) of the lifting broken rail 5 and the top surface (track surface) of the moving track 6, the PLC controller will send a real-time command to the hydraulic drive device 1001 to fine-tune the extension and retraction stroke of the hydraulic cylinder 1002, automatically compensating for the deviation and ensuring that the lifting surface and the track surface are always precisely level, avoiding over-lifting or over-lowering.

[0056] Among them, a pair of mechanical limit switches 16 are fixedly connected to the inner wall of one side of the mounting frame 1, and both mechanical limit switches 16 are located on one side of the lifting roller 1009.

[0057] A pair of symmetrically arranged mechanical limit switches 16 (LX19-111, stainless steel roller plunger type) are fixedly connected to one inner wall of the mounting frame 1. Their positions correspond to the lifting rollers 1009, forming limit position protection. When the lifting mounting frame 2 is raised or lowered to the upper or lower limit position, the lifting rollers 1009 on both sides of the lifting mounting frame 2 move and roll against the wall of the mounting frame 1 (in this embodiment, the mechanical limit switch 16 is located on one side of the lifting rollers 1009, with the side wall of the mounting frame 1 between them). The mechanical limit switch 16 is pressure-sensitive. When the lifting rollers 1009 roll, they squeeze the side wall of the mounting frame 1. The slight deformation of the side wall transmits the pressure to the switch sensing head, triggering the switch action. After the mechanical limit switch 16 is triggered, it immediately sends a signal to the controller. The controller controls the hydraulic drive device 1001 to stop working, closes the oil circuit of the hydraulic cylinder 1002, locks the pressure in the hydraulic cylinder 1002, and stops the lifting mounting frame 2 from moving, avoiding over-lifting impact on the top of the mounting frame 1 or over-lowering impact on the bottom. Specific Implementation Example 2:

[0059] Please see Figures 1-2 and Figures 10-11 As shown, in a preferred embodiment, the clamping mechanism 11 includes a pair of first cylinders 1101, both mounted on the lifting mounting frame 2. The output ends of the pair of first cylinders 1101 are fixedly connected to blocks 1102, and the blocks 1102 extend to be located on both sides of the moving roller 7. The opposite sides of the pair of first cylinders 1101 are fixedly connected to one side of a pair of distance transmission plates 14. One side of the lifting rail 5 is fixedly connected to a second cylinder 1103, and the output end of the second cylinder 1103 is fixedly connected to a connecting straight plate 1104. The bottom of the second cylinder 1103 is provided with a pair of triangular connecting rods 1106, and the top of the pair of triangular connecting rods 1106 and the bottom of the connecting straight plate 1104 are connected by an inclined connecting rod 1105 through a bearing and rotation. The outer walls of the pair of triangular connecting rods 1106 are fixedly connected to clamping rods 1107, and the outer walls of the clamping rods 1107 are sleeved with car-mounting stops 1108.

[0060] In the specific implementation process, after the trolley is transferred to the lifting rail 5 via the moving rollers 7, a pair of first cylinders 1101 (model SC63×100, aluminum alloy cylinder body, stainless steel piston rod) are activated. Their output ends push the stop blocks 1102 to extend to both sides of the moving rollers 7, limiting the lateral displacement of the trolley. At the same time, the second cylinder 1103 is activated. Its output end pushes the connecting straight plate 1104 to move. The connecting straight plate 1104 is rotatably connected to the inclined connecting rod 1105 through bearings, which drives the inclined connecting rod 1105 to pull a pair of triangular connecting rods 1106 towards the middle. The clamping rod 1107 fixed on the outer wall of the triangular connecting rod 1106 moves synchronously, and the trolley stop bar 1108 on its outer wall fits against the side of the trolley, suppressing the rotational movement of the trolley. Through the dual fixation of "lateral limit + rotation constraint", the trolley is stably fixed during the lifting process.

[0061] When the lifting mounting frame 2 and the connecting frame 8 are raised to the target height, and the lifting broken rail 5 is flush with the upper moving rail 6, the second cylinder 1103 retracts first, the connecting straight plate 1104 drives the tilting connecting rod 1105 to reset, the triangular connecting rod 1106 opens outward, the clamping rod 1107 and the car frame stop bar 1108 disengage to the rear side of the connecting frame 8, the rotation constraint is released, and the obstruction to the horizontal transfer of the moving roller 7 and the connecting frame 8 is removed. The first cylinder 1101 then retracts, the stop block 1102 retracts from both sides of the moving roller 7, and the lateral limit is released.

[0062] After unlocking, the vehicle can be smoothly transported to the two sides via the moving rollers 7 along the lifting broken rails 5 and the moving rails 6, without any interference from the components. The distance transfer plate 14 and the second infrared photoelectric switch 15 remain fixed to ensure that the height detection benchmark remains unchanged during the transport process.

[0063] The circuits, electronic components, and chip modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0064] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0065] The working principle of this invention is:

[0066] In the initial state of use, the lifting rail 5 and the moving rails 6 on both sides are aligned by the first infrared photoelectric switch 13 and the second infrared photoelectric switch 15. The lifting mounting frame 2 and the moving rollers 7 are both located on the lifting rail 5. At the same time, the first cylinder 1101 pushes the stop block 1102 to limit the two sides of the lifting mounting frame 2. The second cylinder 1103 drives the triangular connecting rod 1106, the clamping rod 1107, and the car-mounting stop rod 1108 to clamp the lifting mounting frame 2 through the connecting straight plate 1104 and the tilting connecting rod 1105, thus achieving double fixation.

[0067] The hydraulic drive device 1001 is activated, driving the hydraulic cylinder 1002 to extend and retract, thereby moving the movable frame 1003. The transmission rod 1004 on the movable frame 1003 and the transmission rod 1004 on the mounting frame 1 are driven by the transmission sprocket 1005 and the transmission chain 1006. The chain pulls the lifting mounting frame 2 through the connecting collar 1007 and the U-shaped fixing rod 1008, which in turn drives the loading frame 3 and the loaded items to rise and fall vertically along the mounting frame 1. During the lifting process, the lifting rollers 1009 and sliding blocks 10010 on both sides of the lifting mounting frame 2 and the movable frame 1003 form a double guide to ensure smooth operation without deviation. The second infrared photoelectric switch 15 detects the lifting height in real time, while the mechanical limit switch 16 provides lifting height limit protection.

[0068] When the lifting mounting frame 2 rises to near the target height, the PLC controller, combining the real-time height data from the second infrared photoelectric switch 15 and the alignment detection signal from the first infrared photoelectric switch 13, precisely fine-tunes the lifting stroke of the lifting mounting frame 2. This achieves automatic leveling of the lifting device and the track system, automatically compensating for height deviations caused by installation errors and deformation under working conditions. This ensures that the top surface (lifting surface) of the lifting broken rail 5 is precisely flush with the top surface (track surface) of the moving track 6. At this moment, the distance transmission plate 14 is precisely inserted into the U-shaped groove of a pair of first infrared photoelectric switches 13, blocking the infrared signal. The first infrared photoelectric switches 13 immediately send a "broken rail leveling" signal to the PLC controller. The PLC controller, combining the height data from the second infrared photoelectric switch 15, controls the hydraulic drive... Device 1001 stops working, hydraulic cylinder 1002 locks the pressure and completes positioning. Next, the second cylinder 1103 retracts first, connecting straight plate 1104 drives tilting connecting rod 1105 to reset, triangular connecting rod 1106 opens outward, clamping rod 1107 and car frame stop bar 1108 disengage to the rear side of connecting frame 8, rotation constraint is released, and the obstruction to the horizontal transfer of moving roller 7 and connecting frame 8 is removed. The first cylinder 1101 then retracts, and stop block 1102 retracts from both sides of moving roller 7, lateral limit is released. After unlocking, the car frame can be smoothly transferred to the two sides of moving track 6 via moving roller 7 along lifting broken rail 5, without component interference throughout the process; distance transmission plate 14 and second infrared photoelectric switch 15 are always fixed to ensure that the height detection benchmark remains unchanged during the transfer process.

[0069] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A segmented hydraulic device for lifting track systems, characterized in that, include: The mounting frame (1) is slidably connected to the mounting frame (1), the bottom of the lifting mounting frame (2) is provided with a loading frame (3), and the top of the loading frame (3) is provided with a lifting rail (5). A pair of connecting rods (4) are installed between the lifting rail (5) and the lifting mounting frame (2). A pair of moving rails (6) are provided on the outside of the lifting rail (5). The sides of the pair of moving rails (6) that are close to each other do not contact the two sides of the lifting rail (5). The transmission lifting mechanism (10) and the clamping mechanism (11) are provided on the mounting frame (1) and the clamping mechanism (11) is provided on the lifting mounting frame (2). The transmission lifting mechanism (10) includes a hydraulic drive device (1001) mounted on the inner wall of the mounting frame (1). The output end of the hydraulic drive device (1001) is equipped with a matching hydraulic cylinder (1002). The output end of the hydraulic cylinder (1002) is connected to a movable frame (1003) via a coupling. The mounting frame (1) is equipped with three transmission rods (1004), and the outer walls of the three transmission rods (1004) are all fitted with transmission sprockets (1005). One pair of transmission rods (1004) are rotatably connected to the inner wall of the mounting frame (1) via bearings, and the other transmission rod (1004) is connected to the inner wall of the mounting frame (1) via a shaft. The lifting mounting frame (2) is rotatably connected to the inner wall of the movable frame (1003). A pair of connecting seats (9) are fixedly connected to the side of the lifting mounting frame (2) away from the loading frame (3), and each pair of connecting seats (9) has a guide opening. A transmission chain (1006) is meshed between three transmission sprockets (1005) on the same side, and one end of the transmission chain (1006) passes through the guide opening on the connecting seat (9) and is fixedly connected to a connecting collar (1007). A pair of U-shaped fixing rods (1008) are fixedly connected to the side of the lifting mounting frame (2) away from the loading frame (3), and the connecting collar (1007) is sleeved on the outer wall of the U-shaped fixing rod (1008).

2. A segmented hydraulic device for lifting a track system according to claim 1, characterized in that, The bottom of the lifting rail (5) is provided with a connecting frame (8), and the top of the connecting frame (8) passes through the gap of the lifting rail (5) and extends to its top. A movable roller (7) is rotatably connected to the connecting frame (8), and the outer wall of the movable roller (7) rolls in contact with the outer wall of the lifting rail (5) and a pair of movable rails (6).

3. A segmented hydraulic device for lifting a track system according to claim 1, characterized in that, A pair of lifting rollers (1009) and sliding blocks (10010) are fixedly connected to both sides of the lifting mounting frame (2) and the movable frame (1003). The pair of lifting rollers (1009) and sliding blocks (10010) are located inside the mounting frame (1). The pair of lifting rollers (1009) are located on the top of the pair of sliding blocks (10010). The pair of lifting rollers (1009) are in rolling contact with the inner wall of the mounting frame (1) away from the movable frame (1003). The outer walls of the pair of sliding blocks (10010) are slidably attached to the inner walls of both sides of the mounting frame (1).

4. A segmented hydraulic device for lifting a track system according to claim 1, characterized in that, A connecting plate (12) is fixedly connected to one side of each of the pair of moving rails (6), and a pair of first infrared photoelectric switches (13) arranged vertically are fixedly connected to the side of the connecting plate (12) near the lifting rail (5).

5. A segmented hydraulic device for lifting a track system according to claim 1, characterized in that, The lifting mounting frame (2) is provided with a distance transmission plate (14) on its outer side. When the top of the pair of moving rails (6) is aligned with the top of the lifting rail (5), the distance transmission plate (14) is located between the detection ends of a pair of first infrared photoelectric switches (13). The bottom end of the distance transmission plate (14) is fixedly connected to a second infrared photoelectric switch (15), and the detection end of the second infrared photoelectric switch (15) faces the bottom.

6. A segmented hydraulic device for lifting a track system according to claim 3, characterized in that, A pair of mechanical limit switches (16) are fixedly connected to the inner wall of one side of the mounting frame (1), and both mechanical limit switches (16) are located on one side of the lifting roller (1009).

7. A segmented hydraulic device for lifting a track system according to claim 1, characterized in that, The clamping mechanism (11) includes a pair of first cylinders (1101) both mounted on the lifting mounting frame (2). Each of the output ends of the first cylinders (1101) is fixedly connected to a stop block (1102). The stop blocks (1102) extend to be located on both sides of the moving roller (7). The opposite sides of the pair of first cylinders (1101) are fixedly connected to one side of a pair of distance transmission plates (14). One side of the lifting rail (5) is fixedly connected to a second cylinder (1103). The output end of the second cylinder (1103) is fixedly connected to a connecting straight plate (1104). The bottom of the second cylinder (1103) is provided with a pair of triangular connecting rods (1106). The top of the pair of triangular connecting rods (1106) and the bottom of the connecting straight plate (1104) are connected by an inclined connecting rod (1105) through a bearing and rotation. The outer walls of the pair of triangular connecting rods (1106) are fixedly connected with clamping rods (1107), and the outer walls of the clamping rods (1107) are sleeved with a car-mounting stop bar (1108).

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