Device for implementing elevator large component loading and control method thereof

Abstract

The application belongs to the technical field of elevator loading, and provides a device for loading large components of an elevator and a control method thereof, a placing table, a balancing unit, the balancing unit comprising a first detection unit, a leveling mechanism, a first counterweight assembly and a second counterweight assembly, the first detection unit acquiring load information of the large components and load change information of the first counterweight assembly and the second counterweight assembly, a transportation unit being below the balancing unit and being movable between an elevator car and an elevator platform, a second detection unit acquiring height difference information of the elevator car and the elevator platform, and an electric control unit being connected with the first detection unit, the second detection unit and the balancing unit, the electric control unit driving the transportation unit according to the load information, the electric control unit starting the leveling mechanism according to the load information and the height difference information, and the leveling mechanism controlling weight distribution of the first counterweight assembly and the second counterweight assembly so that the height difference information is within a first set threshold range.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of elevator loading, and particularly relates to a device for loading large components of an elevator and a control method thereof. BACKGROUND

[0002] With the continuous development of electrical equipment technology, the application and popularity of elevators are continuously improved, and people's requirements for the running efficiency, load capacity and safety of elevators are also continuously improved. Therefore, there are higher requirements for accurate monitoring of the running state of the elevator, and for efficient control and safety control level of the elevator running. Specifically, when loading large weight / volume objects, the safety control of the elevator has extremely stringent requirements.

[0003] In order to load large components / heavy objects into the car, the traditional way is to first use special equipment to fix the elevator car on the shaft wall to avoid the impact of the load due to the instantaneous pressure when the heavy object enters the car, the stretching of the steel wire rope, the sinking of the car and the unbalanced load, which damages the elevator guide shoe, steel wire rope and other components, or causes the heavy object to tip over.

[0004] In the implementation process, the inventor found that the traditional way of loading large components / heavy objects into the car requires disassembly and assembly of the shaft fixing part, and the operation time is long and the efficiency is low. In addition, the shaft fixing part fixed in the shaft has high stress requirements, and the strength of the shaft wall also has higher requirements. SUMMARY

[0005] In order to overcome the prior art, the purpose of the present application is to provide a device for loading large components of an elevator and a control method thereof.

[0006] The technical scheme adopted by the present application to solve its technical problems is: a device for loading large components of an elevator, comprising: a placing table for placing large components; a balancing unit installed below the placing table, the balancing unit comprising a first detection unit, a leveling mechanism, a first counterweight assembly and a second counterweight assembly, the first counterweight assembly and the second counterweight assembly being communicatively arranged, the leveling mechanism being arranged in the middle of the communication between the first counterweight assembly and the second counterweight assembly, and the first detection unit being installed in the leveling mechanism; the first detection unit acquiring load information of the large components and load change information of the first counterweight assembly and the second counterweight assembly; a transportation unit below the balancing unit and movable between the elevator car and the elevator platform; a second detection unit for acquiring height difference information of the elevator car and the elevator platform when the large components enter or leave the elevator car; an electric control unit connected with the first detection unit, the second detection unit and the balancing unit, the electric control unit driving the transportation unit according to the load information, the electric control unit starting the leveling mechanism according to the load information and the height difference information, and the leveling mechanism controlling the weight distribution of the first counterweight assembly and the second counterweight assembly to make the height difference information within a first set threshold range.

[0007] The specific working principle is that when a large component needs to be transported into the elevator, the large component is first placed above the placing table, the first detection unit in the balancing unit detects the load information of the large component and the load information of the first counterweight assembly and the second counterweight assembly, the second detection unit detects the information of the height difference, and then the transportation unit below is started to move towards the car direction, the transportation unit drives the large component to move, when the transportation unit starts to contact the car, the load borne by the car changes, in order to ensure that the load borne by the car changes smoothly, the leveling mechanism in the balancing unit adjusts the counterweights on both sides of the first counterweight assembly and the second counterweight assembly, and the electric control unit controls the height of the elevator car according to the height difference information, to maintain the balance inside and outside the elevator car.

[0008] As a preferred, the electric control unit is also connected with the elevator control system, when the change rate of the load change information exceeds the second set preset range, the electric control unit sends a start-stop signal to the elevator control system.

[0009] As a preferred, the first counterweight assembly and the second counterweight assembly are connected through pipes through the leveling mechanism, and each of the first counterweight assembly and the second counterweight assembly is provided with a counterweight medium, and the leveling mechanism controls the proportion of the counterweight medium between the first counterweight assembly and the second counterweight assembly in the leveling state.

[0010] As a preferred, the transportation unit includes a hydraulic auxiliary balancing assembly and a roller;

[0011] The bottom of the transportation unit is provided with a cavity, the hydraulic auxiliary balancing assembly is arranged in the cavity, and a plurality of groups of the roller assemblies are arranged side by side at the bottom of the transportation unit, the roller is in sliding fit with the transportation unit, and the top of the roller is in tight fit with the bottom of the hydraulic auxiliary balancing assembly during movement of the device.

[0012] As a preferred, the hydraulic auxiliary balancing assembly is a sealed water bag, and the roller is in tight fit with the sealed water bag.

[0013] As a preferred, the hydraulic auxiliary balancing assembly is a plurality of groups of uniformly arranged sub-water bags, each two groups of sub-water bags are separated by a partition plate, and each sub-water bag is in tight fit with a roller.

[0014] As a preferred, the second detection unit is arranged in the elevator car; the second detection unit includes a distance measurement sending module and a distance measurement receiving module, the distance measurement sending module is arranged in the elevator car, and the distance measurement receiving module is arranged in the elevator platform; or the distance measurement sending module is arranged in the elevator platform, and the distance measurement receiving module is arranged in the elevator car.

[0015] A control method of a device for loading large components of an elevator, including the following steps:

[0016] The electric control unit drives the transportation unit to move from the elevator platform to the elevator car or from the elevator car to the elevator platform when receiving the load signal;

[0017] The height difference information is acquired in real time;

[0018] According to the detection of the height difference information and the load information by the second detection unit, the counterweight between the first counterweight assembly and the second counterweight assembly is adjusted by controlling the leveling mechanism.

[0019] As a preferred, when the change rate of the load information exceeds a threshold value during the movement of the transportation unit, it is judged that the large component is in an abnormal state, and the elevator car is controlled to start and stop.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1. By placing the large component on the placing table, the first detection unit in the balancing unit under the placing table detects the load information. When the transportation unit moves the large component to the car, the first detection unit transmits the change of the load information to the balancing unit, and the weight of the first counterweight assembly and the second counterweight assembly on both sides is changed to maintain the balance of the car, avoiding the cumbersome process of fixing the car in advance, and greatly improving the adjustment efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 The schematic diagram of the device for loading elevator large components;

[0024] Figure 2 The schematic diagram of the transportation unit Figure One ;

[0025] Figure 3 The schematic diagram of the transportation unit Figure Two ;

[0026] Figure 4 The flow chart of the control method of the device for loading elevator large components;

[0027] Figure 5 The flow chart of the balancing unit;

[0028] Figure 6 The schematic diagram of the control module.

[0029] 1, storage platform; 2, second detection unit; 3, balancing unit; 30, leveling mechanism; 31, first counterweight assembly; 32, second counterweight assembly; 34, first detection unit; 4, transportation unit; 40, hydraulic auxiliary balancing assembly; 400, sealed water bag; 401, sub-water bag; 402, partition; 41, roller; 5, electric control unit; 6, large component. DETAILED DESCRIPTION

[0030] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present application, the present application will be described in detail below with the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application. The described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor, fall within the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] The present application specifically discloses a device for realizing loading of elevator large components, which comprises a storage platform 1, a balancing unit 3 and a transportation unit 4.

[0033] In a specific embodiment, the storage table 1, the balancing unit 3 and the transportation unit 4 are stacked from top to bottom in sequence, which can be fixed by snap-fit or screw fixation, etc. to prevent positional deviation between the storage table 1, the balancing unit 3 and the transportation unit 4 during movement. Meanwhile, the balancing unit 3 includes a first detection unit 34, a leveling mechanism 30, a first counterweight assembly 31 and a second counterweight assembly 32. The first detection unit 34 is built in the leveling mechanism 30, which is an electronic scale. The first counterweight assembly 31 and the second counterweight assembly 32 are respectively arranged on both sides of the leveling mechanism 30, wherein the first counterweight assembly 31 is arranged on the side close to the car, and the second counterweight assembly 32 is arranged on the side away from the elevator car. During movement of the transportation unit 4, the first counterweight assembly 31 enters the elevator car first, and then when the transportation unit 4 carrying the large component 6 enters the elevator car, the load of the elevator car will change, thereby forming a height difference between the elevator car and the elevator platform. In order to ensure that the elevator car can remain stable, the leveling mechanism 30 changes the relative weight of the first counterweight assembly 31 and the second counterweight assembly 32, so that the weight inside and outside the elevator car remains balanced. As the large component 6 gradually enters the elevator car, the leveling mechanism 30 also dynamically changes the relative weight of the first counterweight assembly 31 and the second counterweight assembly 32. The control unit also controls the height of the elevator car according to the height difference information detected by the second detection unit 2, so that the height difference information is within the first set threshold range, and the elevator car and the elevator are kept on the same plane as much as possible, and the large component 6 remains stable during the process of entering the elevator car.

[0034] In a further preferred embodiment, the principle and working state of the change of the relative weight of the first counterweight assembly 31 and the second counterweight assembly 32 are specifically introduced. The first counterweight assembly 31 and the second counterweight assembly 32 are both box bodies, which are filled with counterweight medium. The counterweight medium can be water, oil and other substances with fluidity. The first counterweight assembly 31 and the second counterweight assembly 32 are connected through a pipeline, the middle part of which passes through the leveling mechanism 30. The leveling mechanism 30 is provided with a pump body, which can extract and adjust the counterweight medium between the first counterweight assembly 31 and the second counterweight assembly 32, so as to control the weight ratio between the first counterweight assembly 31 and the second counterweight assembly 32.

[0035] In a further preferred embodiment, the structure and working process of the transport unit 4 are specifically introduced, wherein the bottom of the transport unit 4 is provided with an open downward cavity, a hydraulic auxiliary balancing assembly 40 is installed in the cavity to completely fill the cavity, and a plurality of groups of rollers 41 are arranged, and each roller 41 can swing up and down, the bottom of the roller 41 is in contact with the ground, and the top of the roller 41 is in contact with the hydraulic auxiliary balancing assembly 40. During the movement, the roller 41 will swing up and down with the change of the load, and act on the hydraulic auxiliary balancing assembly 40 above, and the hydraulic auxiliary balancing assembly 40 will distribute the pressure to other rollers 41, so as to prevent the car from being unstable due to the sudden increase of the load.

[0036] In a further optional embodiment, the hydraulic auxiliary balancing assembly 40 is a sealed water bag 400, and the sealed water bag 400 is installed and fixed in the cavity, and the top of the roller 41 is in close contact with the sealed water bag 400. When the transport unit 4 moves to the car, the car will shake unnecessarily due to the sudden increase of the load of the car. In order to reduce the shaking, when the roller 41 contacts the car, the roller 41 can swing up and down, and the roller 41 will slightly float up and down when contacting the car. The impact caused by the up and down floating of the roller 41 will be transmitted to the sealed water bag 400 above to offset, so as to reduce the impact of the sudden increase of the load on the car.

[0037] In a further optional embodiment, the hydraulic auxiliary balancing assembly 40 is a plurality of groups of uniformly arranged sub-water bags 401, and each sub-water bag 401 is arranged and distributed in the cavity, and each two groups of sub-water bags 401 are separated by a partition plate 402. Each sub-water bag 401 is in close contact with a roller 41, and only acts on the corresponding sub-water bag 401 above during the up and down floating of the roller 41. Due to the blockage of the partition plate 402, the disturbance to the adjacent roller 41 is reduced, and the stability of the movement of the transport unit 4 is improved.

[0038] In a further preferred embodiment, a second detection unit installed in the car is specifically introduced, wherein the second detection unit comprises a ranging emission module and a ranging receiving module, wherein the ranging emission module is an infrared emitter installed at the bottom of the elevator car, and the ranging receiving module is an infrared receiver installed on the elevator platform. When the moving unit enters the elevator car, the height of the elevator will change due to the new load, so the position of the infrared emitter shooting towards the infrared receiver will change. The position change information is transmitted to the electric control unit 5, and the electric control unit 5 aggregates the information into the height difference information of the elevator car and the elevator platform. At the same time, the electric control unit 55 is also electrically connected with the balancing unit 33 and the transportation unit 44. The device electric control unit 55 compares the collected height difference information, and then controls the balancing unit 33 and the movement of the transportation unit 44 after processing the messages.

[0039] A control method of a device for realizing the loading of elevator large components, comprising the following steps:

[0040] When the large component 6 is placed on the placing table, the electric control unit 5 confirms that the large component 6 has been placed on the placing table after receiving the load signal detected by the first detection unit 34. At this time, the electric control unit 5 can drive the transportation unit 4 to move from the elevator platform to the elevator car direction or from the elevator car to the elevator platform direction;

[0041] When the transportation unit 4 moves to the elevator car or the elevator platform, the height difference between the elevator car and the elevator platform will change due to the sudden increase or decrease of the load of the elevator car. The second detection unit can obtain the height difference information in real time;

[0042] The electric control unit 5 adjusts the counterweight between the first counterweight assembly 31 and the second counterweight assembly 32 through the control of the leveling mechanism 30 and adjusts the up and down movement of the elevator car according to the height difference information and the load information, so as to reduce the height difference between the elevator car and the elevator platform, and make the large component 6 more stable during movement.

[0043] In a further preferred solution, the method further comprises the steps of: obtaining load information of the first detection unit 34, determining that the state of the large component 6 is abnormal when the rate of change of the load change information of the first detection unit 34 exceeds a second preset range, and the state abnormality can be that the large component 6 suddenly tilts, and the electric control unit 5 controls the elevator control system to start and stop the elevator car: during the further movement of the transportation unit 4, the state of the large component 6 is determined in real time by detecting the information data of the first detection unit 34 and the second detection; when the electric control unit 5 detects that the difference reaches a preset threshold, it is determined that the state of the large component 6 is abnormal, and the transportation unit 4 and the in-car automatic balancing device are controlled to stop working; if the electric control unit 5 detects that the difference does not reach the preset threshold, it is determined that the state of the large component 6 is normal, and the transportation unit 4 and the in-car automatic balancing device continue to work until the large component 6 is completely sent into the elevator car.

[0044] When the car transports the large component 6 to the corresponding floor, the moving unit moves out of the car, and when the moving unit contacts the floor, the state of the large component 6 is determined in real time by detecting the information data of the first detection unit 34 and the second detection, and by controlling the balance ratio of the first counterweight assembly 31 and the second counterweight assembly 32 to maintain balance; when the electric control unit 5 detects that the difference reaches a preset threshold, it is determined that the state of the large component 6 is abnormal, and the transportation unit 4 and the in-car automatic balancing device are controlled to stop working; if the electric control unit 5 detects that the difference does not reach the preset threshold, it is determined that the state of the large component 6 is normal, and the transportation unit 4 and the elevator car continue to work until the large component 6 is completely sent out of the elevator car.

[0045] The first detection unit 34, the first detection unit 34, the first detection unit 34, the first detection unit 34, the first detection unit 34, the above-mentioned are only preferred embodiments of the present application, and do not limit the present application in any form. Any modification, equivalent change and modification of the above-mentioned embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, are still within the scope of the technical solution of the present application.

Claims

1. An apparatus for implementing elevator mass loading, comprising: The device comprises: a storage platform for placing large components; a balancing unit installed below the storage platform, the balancing unit comprising a first detection unit, a leveling mechanism, a first counterweight assembly and a second counterweight assembly, the first counterweight assembly and the second counterweight assembly being in communication, the leveling mechanism being arranged at the communication between the first counterweight assembly and the second counterweight assembly, the first detection unit being installed in the leveling mechanism; the first detection unit acquiring load information of the large components and load change information of the first counterweight assembly and the second counterweight assembly; a transportation unit below the balancing unit and movable between the elevator car and the elevator platform; a second detection unit for acquiring height difference information of the elevator car and the elevator platform when the large components enter or leave the elevator car; an electronic control unit connected with the first detection unit, the second detection unit and the balancing unit, the electronic control unit driving the transportation unit according to the load information, the electronic control unit starting the leveling mechanism according to the load information and the height difference information, the leveling mechanism controlling the weight distribution of the first counterweight assembly and the second counterweight assembly to make the height difference information within a first set threshold range; the transportation unit comprising a hydraulic auxiliary balancing assembly and rollers; the transportation unit being provided with a cavity at the bottom, the hydraulic auxiliary balancing assembly being arranged in the cavity, and a plurality of roller assemblies being arranged side by side at the bottom of the transportation unit, the rollers being in sliding fit with the transportation unit, the top of the rollers being in tight fit with the bottom of the hydraulic auxiliary balancing assembly during movement of the device.

2. The apparatus for enabling loading of elevator major components of claim 1, wherein, The electronic control unit is also connected with the elevator control system, and when the change rate of the load change information exceeds a second set preset range, the electronic control unit sends a start / stop signal to the elevator control system.

3. The device for loading large components into an elevator according to claim 1, wherein the first counterweight assembly and the second counterweight assembly are in communication through a pipeline, the leveling mechanism being arranged on the pipeline, and each of the first counterweight assembly and the second counterweight assembly being provided with a counterweight medium, the leveling mechanism controlling the proportion of the counterweight medium between the first counterweight assembly and the second counterweight assembly in the leveling state.

4. The device for loading large components into an elevator according to claim 1, wherein the hydraulic auxiliary balancing assembly is a sealed water bag, and the rollers are in tight fit with the sealed water bag.

5. The device for loading large components into an elevator according to claim 1, wherein the hydraulic auxiliary balancing assembly comprises a plurality of uniformly arranged sub-water bags, and each two of the sub-water bags are separated by a partition, and each of the sub-water bags is in tight fit with a roller.

6. The device for loading large components into an elevator according to claim 1, wherein the second detection unit is arranged in the elevator car; the second detection unit comprises a ranging sending module and a ranging receiving module, the ranging sending module being installed in the elevator car, and the ranging receiving module being installed in the elevator platform. Or the ranging emitting module is installed in the elevator platform, and the ranging receiving module is installed in the elevator car.

7. A control method for a device for realising the loading of elevator components, according to any one of claims 1-6, characterised in that, The method comprises the following steps: The electric control unit drives the transportation unit to move from the elevator platform to the elevator car or from the elevator car to the elevator platform when the load signal is received; The height difference information is acquired in real time; According to the detection of the height difference information and the load information by the second detection unit, the counterweight between the first counterweight assembly and the second counterweight assembly is adjusted by controlling the leveling mechanism, so that the height difference information is within the first set threshold range.

8. The control method of the device for realizing the loading of the elevator large component according to claim 7, further comprising the step of: when the change rate of the load information exceeds the threshold during the movement of the transportation unit, judging that the large component state is abnormal, and controlling the elevator car to start and stop.

9. An elevator, characterized by The device for realizing the loading of the elevator large component comprises the device according to any one of claims 1 to 6.

Images