Speed control lifting system and control system of three-dimensional parking lot

Abstract

The invention relates to the field of mechanical equipment of three-dimensional parking lots, in particular to a speed control lifting system and control system of a three-dimensional parking lot, which comprises a lifting plate which is horizontally arranged and slidably connected among a plurality of upright posts, and further comprises a first winding device, a second winding device and a speed control device, the two first winding devices are arranged above the two opposite sides of the lifting plate and between the tops of the two stand columns, steel ropes are wound on the two first winding devices, and the steel ropes are connected to the upper plate faces at the two opposite corners of the lifting plate; the second winding devices correspond to the first winding devices one by one and are arranged on the same side of the first winding devices and between the tops of the two stand columns, steel ropes are wound on the two second winding devices, and the steel ropes are connected to the lower plate surfaces of the other two opposite corners of the lifting plate; the guide assembly is connected with the corner of the lifting plate and the steel rope and slidably connected to the multiple stand columns, and the stand columns are provided with sliding assemblies corresponding to the guide assembly. The method has the effects that the speed is accurately controlled in the vehicle lifting process, and the safety performance of the three-dimensional parking lot is improved.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment for multi-story parking lots, and in particular to a speed control lifting system and a control system for multi-story parking lots. Background Art

[0002] Multi-story parking garages utilize vertical space to increase parking capacity. Their multi-layered design allows for more parking on limited land. With the acceleration of urbanization and the increasing demand for vehicles, multi-story parking garages have become widely used to alleviate parking difficulties. Specifically, multi-story parking garages typically utilize mechanical, automated, and lift parking systems. Vehicles enter a lift and are moved to different heights or parked.

[0003] Currently, multi-story parking garages typically utilize chains or steel ropes to drive the vehicle up and down, lacking an effective speed control system. This can lead to vehicles easily overspeeding or stopping suddenly during the lift, posing a safety hazard to drivers. Common solutions include adding a speed reducer to lower motor speed and setting limit switches to prevent overload. While adding a speed reducer can effectively reduce the vehicle's lift speed, it also increases the cost and complexity of the equipment. Limit switches, which primarily detect power failures after reaching a preset position, are largely ineffective for controlling speed mid-travel.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the existing technical means are either costly, difficult to achieve stable speed control throughout the entire process, or easily damage the equipment, and therefore cannot fully meet actual needs. Summary of the Invention

[0005] In order to accurately control the speed during the lifting process of a vehicle and improve the safety performance of a multi-story parking lot, the present invention provides a speed control lifting system and a control system for the multi-story parking lot.

[0006] On the one hand, the present invention provides a speed control lifting system for a multi-story parking lot using the following technical solutions: A speed-controlled lifting system and control system for a multi-story parking lot, comprising a lifting platform horizontally arranged and slidably connected between a plurality of columns of the multi-story parking lot, the lifting platform being used to transport vehicles, and further comprising: A first hoisting device is provided above two opposite sides of the lifting plate and between the tops of the two columns, and a steel rope is wound around each of the first hoisting devices, and the steel rope is connected to the upper plate surface at two opposite corners of the lifting plate; A second hoisting device, one-to-one corresponding to the first hoisting device, is arranged on the same side of the first hoisting device and between the tops of the two columns, and the two second hoisting devices are each wrapped with a steel rope, and the steel rope is connected to the lower plate surface at the other two opposite corners of the lifting plate; The guide assembly is connected to the corner of the lifting plate and the steel rope, and is slidably connected to a plurality of columns. The columns are provided with sliding assemblies corresponding to the guide assembly.

[0007] By adopting the above technical solution, two drive assemblies are set in the speed control transmission system, one set is the first hoisting device, and the other set is the second hoisting device. Both sets of hoisting devices include two hoisting devices. The line connecting the positions of the two first hoisting devices is the diagonal line of the lifting plate, and the line connecting the two second hoisting devices is the other diagonal line of the lifting plate. That is, the four hoisting devices are respectively arranged at the four diagonals of the lifting plate; Two first hoisting devices are arranged at the top of the lifting platform, and two second hoisting devices are arranged at the bottom of the lifting platform. During the lifting process of the lifting platform, the two first hoisting devices are the main driving force. The lifting platform is connected to the lifting platform through the guide assembly. The two first hoisting devices operate simultaneously, applying a vertical upward pulling force of the same value at the two corners of the lifting platform. The same pulling force is applied evenly at the two corners of the lifting platform. The lifting platform can be pulled up without the action of the second hoisting device. The second hoisting device operates synchronously with the first hoisting device. The attachment point of the steel rope pulled by the second hoisting device is located below the lifting plate surface. After the steel rope is attached, the conductive force of the steel rope is converted into vertical upward through the change-of-direction structure, cooperating with the first hoisting device to set tension at the four corners of the lifting plate. The motors of the second hoisting device and the first hoisting device are equipped with the same operating power, so that the tension applied to the lifting plate by the four steel ropes is the same. In addition, by equipping two power systems, when one power system encounters movement obstruction or insufficient operating power, the steel rope pulling force of the other power system can maintain the lifting plate in a stable state. This improves the problem of the lifting plate rising too slowly or the steel rope slipping and the intermittent falling of the lifting plate caused by the obstruction of the transmission system in the existing technology; During the sliding process of the above-mentioned lifting platform, the lifting platform is restricted by multiple columns through the connection structure of the guide assembly and the sliding assembly, and always maintains a horizontal state. Even when one of the drive systems has a power problem, the lifting platform maintained in a horizontal state can stably and seamlessly apply the power drive to the steel rope of the second winch device, thereby improving the safety performance of the transmission system.

[0008] Optionally, the guide assembly includes: The guide sliders are arranged corresponding to the corner parts of the lifting plate, and are slidably connected to the inside of the vertical pole body. The vertical pole body has a groove corresponding to the guide slider, and the guide slider is fixedly connected to the lifting plate; The fixed pulley groups are arranged at two corners of the bottom surface of the lifting plate corresponding to the second hoisting devices one by one, and are connected to the steel rope of the second hoisting device.

[0009] By adopting the above technical solution, the guide slider is slidably connected to the slide groove inside the vertical rod and slides vertically along the slide groove. The part of the guide slider outside the slide groove is fixedly connected to the lifting plate. The vertical sliding of the guide slider along the slide groove drives the vertical sliding of the lifting plate, and the lifting plate is maintained in a horizontal state by the clamping relationship between the four guide slider bodies and the slide groove walls. The fixed pulley group corresponds to the steel rope of the second winch device. One end of the steel rope of the second winch device is connected to the bottom part of the lifting plate surface. After being guided by the fixed pulley group, the rope body of the steel rope is vertical and connected to the second winch device; thus, the second winch device on the same side of the lifting plate rotates in the same direction as the first winch device, lifting or lowering the steel rope, driving the lifting plate to rise or fall.

[0010] Therefore, the wheel surfaces of all fixed pulleys in the fixed pulley assembly should be arranged in a vertical plane.

[0011] Optionally, the guide slider is composed of a shell and a magnetic brake; A barrel groove is provided inside the shell, the barrel groove passes through a side wall of the guide slider, an inductor coil is provided in the barrel groove wall, and the barrel groove and the inductor coil are coaxial; One end of the magnetic brake is plugged into the barrel groove, and the plugging part is made of a magnetic conductor.

[0012] By adopting the above technical solution, the guide slider is equipped with the ability of electromagnetic braking, thereby improving the automation and remote operability of the guide slider. Specifically, during the vertical sliding process of the guide slider along the inner groove of the vertical rod, one end of the magnetic brake remains plugged into the barrel groove, and the main body of the magnetic brake closely fits the side wall of one side of the notch of the barrel groove of the guide slider. That is, the shell of the guide slider and the magnetic brake are closely fitted into a whole guide slider. When the vehicle is lifted to a predetermined height, it needs to be pre-decelerated and finally parked at the predetermined parking floor height. In the above scheme, the steel ropes of the first winch device and the second winch device drive the lifting platform up and down on both sides of the lifting platform. In the scheme relying only on the steel rope transmission, the top and bottom sides of the lifting platform are pulled simultaneously when the lifting platform is decelerated, which improves the parking stability of the lifting platform compared with the existing technology and solves the problem of the lifting platform jumping caused by excessive braking; however, in order to further improve the braking stability of the lifting platform, an electromagnetic braking means is provided inside the guide slider to assist the first winch device and the second winch device in braking the lifting platform; specifically, when the lifting platform brakes, the inductive coil is energized with a preset current value, forming a magnetic field force in the drum groove in the direction of the drum groove slot, pushing the magnetic brake part of the magnetic conductive material to slide outward along the drum groove, abutting the wall of the vertical rod slide groove and continuously pressing until the lifting platform is completely parked; It is emphasized again that in the technical solution of lifting plate braking, electromagnetic braking is only an auxiliary means, and in actual application it should mainly rely on the steel rope pulling of the first winch device and the second winch device.

[0013] Optionally, also include: a gearbox, corresponding one-to-one to the two first hoisting devices, disposed in the first hoisting devices, and connected to the output member and the drum of the first hoisting devices; The gravity sensor is arranged on the bottom side of the lifting plate.

[0014] By adopting the above technical solution, a gravity sensor is added to the transmission system as a vehicle weight detection component. The rotational torque of the output component is adjusted according to the vehicle weight. For heavier vehicles, low speed and high output torque are used. For lighter vehicles, the speed is appropriately increased, the output torque is reduced, and the lifting speed of the lifting plate is increased. The lifting plate can select a power mode that adapts to the vehicle weight according to the actual situation. Due to the greater inertia of heavier vehicles, the tearing tension on the first hoisting device is greater during the lifting process. In particular, the tearing tension on the first and second hoisting devices is the greatest when the lifting platform is accelerating and decelerating. Therefore, it is necessary to set up a gravity sensor to detect the weight of the vehicle entering the lifting platform. The first and second hoisting devices select the appropriate speed mode according to the vehicle weight. After a heavy vehicle enters the lifting platform, the first and second winches lift the lifting platform. Under the action of static inertia, the tearing tension of the steel rope is large, and a low-speed, high-torque lifting mode is required to drive the lifting platform to alleviate the impact of steel rope tearing caused by the conflicting operation mode of static inertia and lifting drive; on the contrary, after a light vehicle enters the lifting platform, the influence of inertia is small, and the lifting speed of the lifting platform can be appropriately increased to reduce the waiting time for multi-story parking and improve user experience.

[0015] Optionally, the lifting plate is composed of a double layer of vertically distributed and horizontally arranged plates; A spacer is provided between the two plate bodies of the lifting plate, and an elastic member is provided between the two plate bodies. Both ends of the elastic member in the elastic direction connect the two plate bodies.

[0016] By adopting the above technical solution, the lifting plate is divided into two layers, and elastic members are arranged between the two layers. The elastic contraction and expansion elasticity are used to change the distance between the two layers to compensate for the influence of gravity. Based on this, the steel rope attachment points of the first hoisting device and the second hoisting device are set on the top side and bottom side of the bottom plate in the double-layer plate, that is, the fulcrum of the driving lifting member is set on the bottom plate, which has no influence on the elastic member; the elastic force is used to offset part of the vehicle weight during the lifting and speed change process. When the lifting plate accelerates or decelerates, the elastic force offsets part of the inertia force of the vehicle, thereby extending the duration of the generation and disappearance of the tearing tension of the steel rope. By extending the change market of the tearing tension of the steel rope, the structure of the steel rope body adapts to the change of the tearing tension, thereby protecting the structural strength of the steel rope and extending the service life of the steel rope.

[0017] On the one hand, the present invention provides a control system for a speed control lifting system of a multi-story parking lot adopts the following technical solutions: A control system for a speed control and lifting system of a multi-story parking lot, characterized in that it is applied to the speed control and lifting system; the control system includes a calculation processing module, a data acquisition module, and a feedback control module. The data acquisition module includes multiple types of sensors arranged inside the control system to collect the real-time gravity of the lifting platform, the winding speed of the hoisting device, the tension values ​​of multiple steel ropes, and the lifting speed of the lifting platform; the data acquisition module is connected to the calculation and processing module and sends the collected values ​​to the calculation and processing module; The calculation processing module receives and retrieves the collected data of the data acquisition module in real time, and classifies, analyzes and processes the data; the calculation processing module internally stores instruction files for changing the operating parameters of the first hoisting device and the second hoisting device, executes the relevant instruction files according to the numerical calculation results, and generates control instructions, which are sent to the feedback control module; The feedback control module controls the first hoisting device and the second hoisting device, and the inductor coil operates. The feedback control module is connected to the calculation and processing module and follows the control instructions of the calculation and processing module.

[0018] By adopting the above technical solution, a control system dedicated to the speed-controlled lifting system in the above solution is built, and a set of operating logic is designed for the first hoisting device, second hoisting device, gravity sensor, etc. additionally added in the above solution to improve the operability, safety and immediate feedback of the speed-controlled lifting system; The control system comprises a computing and processing module, a data acquisition module, and a feedback control module as its basic functional architecture. The data acquisition module collects comprehensive parameters related to the operation of the lift platform and assisted parking within the Cube Parking Lot and transmits them in the form of data to the computing and processing module. The computing and processing module contains a chip with data calculation, processing, analysis, and information storage capabilities, which performs calculations on the data collected by the data acquisition module. A single-chip microcomputer or small computer is recommended for use as the computing and processing module, as these modules consume low power when in uninterrupted, continuous operation and have digital information processing capabilities that meet the processing requirements of the aforementioned solution. The computing and processing module selects, calls, and executes instruction files of relevant numerical types based on the calculation results, generates control instructions for controlling the speed-controlled lifting system, and transmits them to the feedback control module. The feedback control module includes the power supply control circuit and power control circuit for the first and second hoisting devices and the inductor coil. It receives control instructions from the computing and processing module to specifically adjust the operating parameters of the speed-controlled lifting module, such as adjusting the output speed of the drive components of the first and second hoisting devices to change the winding speed of the steel rope, or changing the current flowing through the inductor coil to change the magnetic force.

[0019] Optionally, an emergency stop module is also included; The emergency stop module is connected to the calculation and processing module. A safety value range is set in the calculation and processing module. The calculation and processing module receives the collected values ​​of the data acquisition module in real time, compares the calculation results with the safety value range, and generates instructions based on the comparison results. The emergency stop module receives the instructions from the calculation and processing module and controls the power circuits of the first hoisting device and the second hoisting device to cut off; The emergency stop module is connected to the inductor coil, receives instructions from the calculation and processing module, and changes the operating state and parameters of the inductor coil.

[0020] By adopting the above technical solution, the emergency stop module is another control module that controls the operation of the inductor coil, the first hoisting device and the second hoisting device, and also has the function of controlling operation. The calculation and processing module analyzes the collected values ​​of the data acquisition module in real time, and instantly judges the current power status of the lifting plate through multiple sets of data dimensions. When the calculation and processing module detects power failure, the emergency stop module cuts off the power circuit of the first hoisting device and the second hoisting device; at the same time, the emergency stop module controls the power circuit of the inductor coil, enhances the current value of the wire in the coil, increases the magnetic induction intensity, and pushes the magnetic brake away from the slider body. Under the action of the magnetic force, the surface of one side of the magnetic brake presses against the inner wall of the slide groove of the vertical pole, assisting the lifting plate in emergency stopping.

[0021] Optionally, the emergency stop module is connected to the gravity sensor, and the emergency stop module and the gravity sensor are connected by wire.

[0022] By adopting the above technical solution, the emergency stop module is directly connected to the gravity sensor in addition to being connected to the central processing module, providing the emergency stop module with another channel to quickly obtain data and control the operation of the lifting platform; the gravity sensor detects the weight change of the lifting platform and the real-time weight value, which is the most intuitive data to directly reflect the fault problem. During the lifting process of the lifting platform, when the first hoisting device and the second hoisting device have a driving failure, the restraining force on the lifting platform will inevitably be reduced. Although there are two-sided constraints of multiple steel ropes, at the moment of driving failure, the lifting platform and the vehicle above it as a whole have an instantaneous downward trend under the action of gravity. The inertia of the lower plate of the two layers of the lifting platform is smaller than the inertia of the upper plate and the vehicle as a whole. Therefore, the elastic member as a whole tends to be compressed, and the overall weight value of the upper plate of the two layers increases, and the gravity sensor data shows a peak. A safety digital threshold is written on the data processing end inside the gravity sensor. When the above-mentioned weight value peak value monitored by the detection end of the gravity sensor is exceeded, a signal is sent directly to the control circuit of the emergency stop module inside the same lifting platform through the data transmission line. The emergency stop module changes the operating parameters of the first winch and the second winch on the lifting platform according to the signal, thereby improving the response speed of the control system in the speed-controlled lifting system.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. It provides a more accurate and safe speed control mechanism, which can effectively prevent the lifting platform from overspeeding or underspeeding due to insufficient power during the lifting process, thereby improving the safety performance of the overall operation; 2. Integrated emergency braking function, which can respond quickly even in extreme situations, minimizing the possibility of accidents; 3. Due to the adoption of intelligent control system, various parameters can be flexibly adjusted according to different working environments, which not only ensures efficient operation but also takes into account long-term stable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 2 It is a structural schematic diagram of the lifting plate of an embodiment of the present application.

[0026] Figure 3 It is a structural diagram of the first slider in an embodiment of the present application.

[0027] Figure 4 It is a structural diagram of the second slider in the embodiment of the present application.

[0028] Figure 5 It is a logic block diagram of the control system operation in the embodiment of the present application.

[0029] Explanation of the accompanying drawings: 1. Column; 11. Sliding groove; 2. Beam; 21. First hoisting device; 22. Second hoisting device; 3. Lifting plate; 31. First slider; 311. Magnetic brake; 312. Shell; 313. Inductor coil; 32. Second slider; 321. Fixed pulley; 33. Gas spring; 4. Computing and processing module; 5. Feedback control module; 6. Emergency stop module; 7. Data acquisition module; 71. Speed ​​sensor; 72. Stress sensor; 73. Acceleration sensor; 74. Gravity sensor. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] First, the embodiment of the present application discloses a main structure of a three-dimensional parking lot. Figure 1 The main structure of a multi-story parking lot includes multiple columns 1 and beams 2. The multiple columns 1 are vertically arranged to serve as a supporting structure. The multiple beams 2 are horizontally arranged at the top of the multiple columns 1. The tops of the multiple columns 1 are connected to form the main structure of the multi-story parking lot. Thus, the top and bottom surfaces of the main structure of the multi-story parking lot composed of the multiple above-mentioned columns 1 and beams 2 are fixedly connected to form a multi-story parking lot.

[0032] Secondly, the embodiment of the present application discloses a speed control lifting system for a three-dimensional parking lot, which is applied to the main structure of a three-dimensional parking lot; Figure 1 and Figure 2 The top of the piston rod of the multiple gas springs 33 is fixed to the surface of the top plate, and the top of the piston rod of the multiple gas springs 33 is fixed to the surface of the top plate, which stabilizes the gas springs 33; the elastic force release and accumulation direction of the gas spring 33 is the direction of sliding of the top plate and the bottom plate toward and away from each other, and the elastic force acts on the changing distance between the top plate and the bottom plate.

[0033] In actual application, auxiliary parking structures such as anti-skid patterns and brakes should be set on the top plate surface of the lifting plate 3.

[0034] Reference Figure 2 In the two plate bodies that make up the lifting plate 3, sliders are provided on both sides of the edges of both ends of the bottom plate. The sliders are fixedly connected to the edges of multiple sides of the bottom plate. The sliders are arranged one by one corresponding to the four corners of the bottom plate. A sliding groove adapted to the slider is vertically opened in the column 1. The slider slides along the sliding groove, driving the lifting plate 3 to rise and fall, serving as a driving method for the vertical sliding of the lifting plate 3 in the lifting system.

[0035] Reference Figure 1The lifting and lowering of the slider is driven by a steel rope. For this purpose, a plurality of hoisting devices are provided on the crossbeam 2. The plurality of hoisting devices are divided into two groups, namely a first hoisting device 21 and a second hoisting device 22. Each group of hoisting devices includes two hoists, a total of four, and the four hoists correspond to the four corners of the lifting plate 3 one by one; the first hoisting device 21 and the second hoisting device 22 are both driven by a servo motor. The difference between the first hoisting device 21 and the second hoisting device 22 is that a gearbox is provided between the motor and the drum of the first hoisting device 21. The gearbox is a gear gearbox, which can flexibly change the wheel diameter of the output gear to change the rotation speed of the drum; on the basis of the servo motor accurately controlling the drum speed, a gearbox is provided to reduce the transmission and output speed of the servo motor, increase the output torque, and grade the winding speed of the drum.

[0036] Reference Figure 1 and Figure 2 The four sliders correspond to the four winches one by one, among which the two sliders corresponding to the two first winches 21 are the first sliders 31, and the two sliders corresponding to the two second winches 22 are the second sliders 32; the two first sliders 31 are fixed to the edge of the plate or above the bottom plate, that is, the vertical edges on one side of the two first sliders 31 protrude between the bottom plate and the top plate, and the part protruding between the bottom plate and the top plate is slidably connected to the inside of the slide groove of the column 1; the second slider 32 is fixed to the bottom side of the bottom plate, and protrudes between the bottom plate and the top plate, and the protruding part is slidably connected to the inside of the slide groove of the column 1. The first slider 31 and the second slider 32 protrude between the bottom plate and the top plate, and the steel rope is connected so that the pulling force point of the steel rope on one diagonal line of the lifting plate 3 is located on the top surface of the lifting plate 3, and the pulling force point of the steel rope on the other diagonal line of the lifting plate 3 is located on the bottom surface of the lifting plate 3. The lifting plate 3 is pulled on both sides. When one of the first hoisting device 21 and the second hoisting device 22 or one of the hoists of the first hoisting device 21 and the second hoisting device 22 fails or has a power failure, the lifting plate 3 can be pulled on both sides by the structural limit of the top and bottom surfaces. Reference Figure 3The main body of the first slider 31 is composed of a shell 312, and a cylindrical groove is opened inside the shell 312. The cylindrical groove passes through the side wall of one side of the first slider 31, so that the shell 312 is cylindrical, and a magnetic brake 311 is inserted into the cylindrical groove. One end of the magnetic brake 311 extends out of the cylindrical groove. The area of ​​the end of the magnetic brake 311 extending out of the cylindrical groove is equal to the area of ​​the first slider 31 body. The magnetic brake 311 fits tightly with the plug-in surface of the shell 312 to form the main body of the first slider 31, and an inductor coil 313 is provided inside the cylindrical groove wall. The cylindrical groove and the inductor coil 313 are coaxially arranged. The part of the magnetic brake 311 inserted into the cylindrical groove is made of a magnetic conductive material, so that when the inductor coil 313 inside the cylindrical groove wall is energized, the magnetic brake 311 is subjected to a horizontal pushing force or attraction through different current directions, so that the magnetic brake 311 moves away from or approaches the cylindrical groove. As a result, the inductor 313 is energized, pushing the magnetic brake 311 away from the housing 312 , and the end surface of the magnetic brake 311 presses against the inner wall of the slide groove inside the column 1 , frictionally braking the lifting plate 3 .

[0037] Reference Figure 4 The second slider 32 is in the shape of a rectangular block as a whole. The corners of the second slider 32 are rotatably connected to multiple fixed pulleys 321. Multiple fixed pulleys 321 are arranged in the same vertical plane to form a fixed pulley 321 group. Multiple rollers protrude from the surface of the second slider 32 block. The steel wound up by the second winch device 22 is wound around the fixed pulley 321 group from the vertical side ropes of the multiple fixed pulleys 321 group, and is wound out from the other relatively vertical side of the fixed pulley 321 group to connect the bottom side of the lifting plate 3.

[0038] The implementation principle of a speed-controlled lifting system and a control system for a multi-story parking lot in an embodiment of the present application is as follows: the two first hoisting devices 21 are the main driving force, and the two first hoisting devices 21 operate simultaneously, applying a vertical upward pulling force of the same value at the two corners of the lifting plate 3, and applying the same pulling force on average at the two corners of the lifting plate 3. Without the action of the second hoisting device 22, the lifting plate 3 can also be pulled up.

[0039] The motors of the second hoisting device 22 and the first hoisting device 21 are equipped with the same operating power, so that the four steel ropes exert the same tension on the lifting plate 3, and by equipping two power systems, when one of the power systems is obstructed in movement or has insufficient operating power, the steel rope pulling force of the other power system keeps the lifting plate 3 in a stable state; this improves the problem in the prior art where the lifting plate 3 rises too slowly or the steel ropes slip, and the lifting plate 3 falls intermittently due to obstruction of the transmission system operation; during the sliding process of the above-mentioned lifting plate 3, the lifting plate 3 is restricted by multiple columns 1 through the connection structure of the guide assembly and the sliding assembly, and is always maintained in a horizontal state. Even when one of the drive systems has a power problem, the lifting plate 3 maintained in a horizontal state can stably and seamlessly apply the power drive to the steel ropes of the second hoisting device 22, thereby improving the safety performance of the transmission system.

[0040] The embodiment of the present application discloses a control system for a speed control and lifting system of a multi-story parking lot, which is used for the automatic control of a speed control and lifting system of a multi-story parking lot. Figure 5 The control system of a speed control lifting system of a multi-story parking lot includes a calculation and processing module 4, a data acquisition module 7, a feedback control module 5, and an emergency stop module 6; among them, the data processing module is the main central control module, which has the basic calculation functions of data classification, calculation, processing, and storage, and it has instruction files stored inside to run and generate instructions.

[0041] Reference Figure 5 The data acquisition module 7 includes a gravity sensor 74, an acceleration sensor 73, a stress sensor 72, and a speed sensor 71. In this embodiment, only these four sensors are used to detect system operating parameters during the lifting and parking process of the lifting platform 3. The gravity sensor 74 is located on the bottom side of the top plate of the two plates of the lifting platform 3 to detect the weight of the vehicle and the changes in gravity during the lifting and parking process of the lifting platform 3. The data processing end inside the gravity sensor 74 is programmed with a safety digital threshold. When the peak value of the weight value detected by the detection end of the gravity sensor 74 is exceeded, a signal is sent to the calculation processing module 4. The acceleration sensor 73 is located near the motor shaft used to drive the first hoisting device 21 and the second hoisting device 22, and inside the gearbox housing 312, to monitor the output speed of the motors of the first hoisting device 21 and the second hoisting device 22 in real time. The speed sensor 71 is arranged on the top side of the bottom plate of the two plates of the lifting plate 3 and between the multiple gas springs 33 to monitor the lifting speed of the lifting plate 3 in real time; the stress sensor 72 uses a resistive sensor and is arranged on the steel rope body at the connection points between the steel rope and the first slider 31 and the steel rope and the second slider 32, and detects the stress of the steel rope by the change of the steel rope resistance; the above four types of sensors send the detection values ​​to the calculation and processing module 4, and the calculation and processing module 4 determines the operating status of the lifting plate 3 according to the operating parameters.

[0042] Reference Figure 5 The feedback control module 5 controls the operation of the first hoisting device 21, the second hoisting device 22, and the inductor 313. The feedback control module 5 is connected to the calculation and processing module 4 and follows the control instructions of the calculation and processing module 4. Specifically, it includes the control circuit of the motor in the first hoisting device 21 and the second hoisting device 22, the power supply circuit of the inductor 313, etc.

[0043] Reference Figure 5The emergency stop module 6 is connected to the calculation and processing module 4 and the gravity sensor 74; a safe numerical range is set in the calculation and processing module 4, and the calculation and processing module 4 receives the collected values ​​of the data acquisition module 7 in real time, compares the calculation results with the safe numerical range, and generates instructions according to the comparison results. The emergency stop module 6 receives the instructions of the calculation and processing module 4 and controls the power circuit of the first hoisting device 21 and the second hoisting device 22 to cut off; in addition to being connected to the central processing module, the emergency stop module 6 is directly connected to the gravity sensor 74, providing the emergency stop module 6 with another channel for quickly obtaining data and controlling the operation of the lifting plate 3, thereby improving the response speed of the control system in the speed-controlled lifting system.

[0044] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A speed-controlled lifting system for a multi-story parking lot, comprising a lifting plate (3) horizontally arranged and slidably connected between a plurality of columns (1) of the multi-story parking lot, the lifting plate (3) being used for transporting vehicles, characterized in that: Also includes: A first hoisting device (21) is arranged above two opposite sides of the lifting plate (3) and between the tops of the two columns (1), and a steel rope is wound around each of the first hoisting devices (21), and the steel rope is connected to the upper plate surface at two opposite corners of the lifting plate (3); The second hoisting device (22) is arranged on the same side of the first hoisting device (21) and between the tops of the two columns (1) in a one-to-one correspondence with the first hoisting device (21), and the two second hoisting devices (22) are both wound with steel ropes, and the steel ropes are connected to the lower plate surface at the other two opposite corners of the lifting plate (3); The guide assembly is connected to the corner of the lifting plate (3) and the steel rope, and is slidably connected to a plurality of columns (1). The columns (1) are provided with sliding assemblies corresponding to the guide assembly.

2. The speed control lifting system for a multi-story parking lot according to claim 1, characterized in that: The guide assembly comprises: Guide sliders are provided corresponding to the corner portions of the lifting plates (3) and are slidably connected to the interior of the vertical pole body. Grooves corresponding to the guide sliders are vertically provided in the vertical pole body. The guide sliders are fixedly connected to the lifting plates (3). The fixed pulley groups are arranged at two corners of the bottom surface of the lifting plate (3) in correspondence with the second hoisting device (22) and are connected to the steel rope of the second hoisting device (22).

3. The speed control lifting system for a multi-story parking lot according to claim 2, characterized in that: The guide slider is composed of a housing (312) and a magnetic brake (311); A cylindrical groove is provided inside the housing (312), the cylindrical groove passes through one side of the guide slider, an inductor coil (313) is provided inside the cylindrical groove wall, and the cylindrical groove and the inductor coil (313) are coaxial. One end of the magnetic brake (311) is plugged into the barrel groove, and the plugging portion is made of a magnetic conductor.

4. The speed control lifting system for a multi-story parking lot according to claim 1, characterized in that: Also includes: a gearbox, corresponding one to one to the two first hoisting devices (21), disposed in the first hoisting device (21), and connected to the output member and the drum of the first hoisting device (21); A gravity sensor (74) is arranged on the bottom side of the lifting plate (3).

5. The speed control lifting system for a multi-story parking lot according to claim 4, characterized in that: The lifting plate (3) is composed of a double layer of vertically distributed and horizontally arranged plate bodies; A spacer is provided between the two plate bodies of the lifting plate (3), and an elastic member is provided between the two plate bodies, with both ends of the elastic member in the elastic direction connecting the two plate bodies.

6. A control system for a speed-controlled lifting system of a multi-story parking lot, characterized in that: Applicable to the speed-controlled lifting system; the control system includes a calculation processing module (4), a data acquisition module (7), and a feedback control module (5); The data acquisition module (7) includes multiple types of sensors arranged inside the control system, which collect the real-time gravity of the lifting plate (3), the winding speed of the hoisting device, the tension values ​​of the multiple steel ropes, and the lifting speed of the lifting plate (3); the data acquisition module (7) is connected to the calculation and processing module (4) and sends the collected values ​​to the calculation and processing module (4); The calculation processing module (4) receives and retrieves the data collected by the data collection module (7) in real time, and classifies, analyzes and processes the data; the calculation processing module (4) internally stores instruction files for changing the operating parameters of the first hoisting device (21) and the second hoisting device (22), runs the relevant instruction files according to the numerical calculation results, and generates control instructions, which are sent to the feedback control module (5); The feedback control module (5) controls the first hoisting device (21) and the second hoisting device (22), and the inductor (313) operates. The feedback control module (5) is connected to the calculation and processing module (4) and follows the control instructions of the calculation and processing module (4).

7. The control system of the speed control lifting system of the multi-story parking lot according to claim 6, characterized in that: Also includes an emergency stop module (6); The emergency stop module (6) is connected to the calculation processing module (4), a safety value range is set in the calculation processing module (4), the calculation processing module (4) receives the collected value of the data collection module (7) in real time, compares the calculation result with the safety value range, and generates an instruction according to the comparison result. The emergency stop module (6) receives the instruction of the calculation processing module (4) and controls the power circuit of the first hoisting device (21) and the second hoisting device (22) to be disconnected; The emergency stop module (6) is connected to the inductor (313), receives instructions from the calculation and processing module (4), and changes the operating state and parameters of the inductor (313).

8. The control system of the speed control lifting system of a multi-story parking lot according to claim 6, characterized in that: The emergency stop module (6) is connected to the gravity sensor (74), and the emergency stop module (6) and the gravity sensor (74) are connected by wire.

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