Device for balancing counterweight and lift car of traction type elevator in real time

By installing an independent water tank and regulating water circuit system in the elevator, the water volume can be adjusted in real time to balance the weight of the car and the counterweight, solving the problem of weight imbalance in traction elevators during passenger or freight transport. This enables the traction motor to operate under low load, reducing energy consumption and wear.

CN223509448UActive Publication Date: 2025-11-04SHANGHAI INST OF SPECIAL EQUIP INSPECTION & TECHN RES
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Patent Information

Application Number
CN202422821103.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2025-11-04
Estimated Expiration
2034-11-19

AI Technical Summary

Technical Problem

During passenger or freight transport, the weight imbalance between the car and the counterweight in traction elevators causes the traction motor to operate under high load for extended periods, increasing wear, energy consumption, noise, and reducing efficiency.

Method used

By installing independent first and second water tanks in the elevator, and using regulating water circuits, pump sets, and controllers to adjust the water volume in real time, the weight on the car side and the counterweight side is kept balanced, ensuring that the traction motor operates under low load conditions.

Benefits of technology

It enables real-time balancing of elevators under different load conditions, reduces wear and energy consumption of traction motors, improves operating efficiency, and reduces operating costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a device for balancing a counterweight and a car of a traction type elevator in real time. Comprising a first water tank independently arranged relative to the traction type elevator, a second water tank arranged on a lift car of the traction type elevator, an adjusting water path used for communicating the first water tank with the second water tank, an adjusting pump set used for conveying water in the first water tank and the second water tank and a controller, and a load capacity measuring device is arranged on the lift car. The controller is electrically connected with the load capacity measuring device and the adjusting pump set so as to adjust the water storage amount of the first water tank and the second water tank, and the total mass of the lift car on the lift car side and the second water tank can be balanced with the counterweight side of the traction type elevator. Compared with the prior art, according to the actual carrying weight of the elevator, in the operation process of the elevator, the water volume of the first water tank and the water volume of the second water tank are adjusted in real time, the weight of the lift car side and the weight of the counterweight side are equal, low-working-condition operation of the traction motor is achieved, and a design scheme is provided for the elevator with the energy-saving requirement.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator equipment technical field relates to a kind of real-time balancing device of counterweight and car of traction type elevator. BACKGROUND

[0002] Traction type elevator is powered by motor, which drives the traction machine to rotate and moves the car upward or downward through the traction rope. During the operation of the elevator, the counterweight device plays a role in balancing the weight of the car. However, as the elevator carries passengers or goods of different weights in actual operation, the actual weight of the car will change constantly. When the load in the car is equal to the weight of the counterweight, the elevator is in the best balanced state. At this time, the load of the traction motor is the smallest, and the operation efficiency is the highest. However, this situation is not common in the daily operation of the elevator. In most cases, the elevator is only in balance at a specific weight during daily operation, and the traction motor is in high-load working condition for a long time, which can accelerate the wear and tear and aging of its internal components (bearings, windings, insulation materials, etc.), significantly shorten the service life of the traction motor. In addition, the traction motor needs to consume more electric energy to overcome the additional load when it operates in high-load working condition. This will increase the power consumption of the elevator, thereby increasing the operating cost. In addition, due to the reduced efficiency of the motor, more heat and noise will be generated, which will adversely affect the operating environment of the elevator. SUMMARY

[0003] The purpose of the utility model is to provide a kind of real-time balancing device of counterweight and car of traction type elevator, according to the actual carrying weight of elevator, in the process of elevator operation, the weight of car side and counterweight side is kept real-time equal, to adapt to the balance demand under different load conditions, realize the low working condition operation of traction motor and the energy-saving demand of elevator.

[0004] The purpose of the utility model can be achieved by the following technical solutions:

[0005] The utility model provides a kind of real-time balancing device of counterweight and car of traction type elevator, comprising:

[0006] The first water tank is independently arranged relative to the traction type elevator;

[0007] The second water tank is arranged on the car of the traction type elevator, and the car is provided with a load measuring device;

[0008] The adjusting waterway is used to connect the first water tank and the second water tank;

[0009] The adjusting pump set is used to send water from the first water tank to the second water tank and send water from the second water tank to the first water tank;

[0010] The controller is electrically connected with the load weight measuring device and the regulating pump group to regulate the water storage amount of the first water tank and the second water tank, so that the total mass of the car side and the second water tank is balanced with the counterweight side of the traction elevator.

[0011] The car side is balanced with the counterweight side of the traction elevator, i.e. the two ends of the traction motor are balanced, in this state, the traction motor operates in a low working condition, and the traction elevator operates normally and labor-savingly.

[0012] Further, the first water tank is arranged on the ground of the machine room, and the gravity of the first water tank and its contents is independent of the traction elevator, i.e. the first water tank is used as a standby water tank to regulate the weight of the counterweight side and the car side, so that the weight of the counterweight side and the car side is balanced.

[0013] Further, the first water tank comprises a first water tank body, a first partition plate arranged in the first water tank body, a first water storage compartment between the first partition plate and the top plate of the first water tank body, and a first pressure compartment between the first partition plate and the bottom plate of the first water tank body; the second water tank comprises a second water tank body, a second partition plate arranged in the second water tank body, a second water storage compartment between the second partition plate and the top plate of the second water tank body, and a second pressure compartment between the second partition plate and the bottom plate of the second water tank body; the regulating waterway comprises a first conveying pipe and a second conveying pipe, the first water storage compartment is connected with the second pressure compartment through the first conveying pipe, and the first pressure compartment is connected with the second water storage compartment through the second conveying pipe.

[0014] Further, a first water inlet pipe is arranged on the top plate of the first water tank body and communicates with the first water storage compartment; a second water outlet pipe is arranged on the bottom plate of the second water tank body and communicates with the second pressure compartment; one end of the first conveying pipe is connected with the first water inlet pipe, and the other end is connected with the second water outlet pipe.

[0015] Further, a second water inlet pipe is arranged on the top plate of the second water tank body and communicates with the second water storage compartment; a first water outlet pipe is arranged on the bottom plate of the first water tank body and communicates with the first pressure compartment; one end of the second conveying pipe is connected with the second water inlet pipe, and the other end is connected with the first water outlet pipe.

[0016] Further, a drag chain is arranged outside the first conveying pipe and the second conveying pipe to protect the conveying pipes; a first electromagnetic valve and a second electromagnetic valve are respectively arranged on the first water outlet pipe and the second water outlet pipe, and the first electromagnetic valve and the second electromagnetic valve are electrically connected with the controller to realize the closing and opening of the first water outlet pipe and the second water outlet pipe.

[0017] Further, the drag chain is composed of a plurality of chain links connected by hinges and can rotate freely as the second water tank moves up or down.

[0018] Further, the adjusting pump group comprises a first pressure pump arranged on the outer wall of the first pressure chamber and a second pressure pump arranged on the outer wall of the second pressure chamber; the first pressure pump is used to deliver the water medium in the first pressure chamber to the second water storage chamber of the second water tank through the second delivery pipe; the second pressure pump is used to deliver the water medium in the second pressure chamber to the first water storage chamber of the first water tank through the first delivery pipe.

[0019] Further, the outer wall of the first water tank body is further provided with a first flow control valve, the first water storage chamber and the first pressure chamber are connected through the first flow control valve, and the first flow control valve is used to quantitatively control the volume of the water medium entering the first pressure chamber from the first water storage chamber; the outer wall of the second water tank body is further provided with a second flow control valve, the second water storage chamber and the second pressure chamber are connected through the second flow control valve, and the second flow control valve is used to quantitatively control the volume of the water medium entering the second pressure chamber from the second water storage chamber.

[0020] Further, the first water storage chamber top plate is provided with a first air valve, the second water storage chamber top plate is provided with a second air valve, the outer wall of the first pressure chamber is provided with a third air valve, and the outer wall of the second pressure chamber is provided with a fourth air valve.

[0021] Further, the third air valve, the second air valve and the first pressure pump are electrically connected, so that when the first pressure pump works, the first pressure chamber is closed and the second water storage chamber is connected to the atmosphere, so as to facilitate the water in the first pressure chamber to be fully pumped into the second water storage chamber; when the first pressure pump is closed, the second water storage chamber is closed, so as to utilize the air pressure to avoid or limit the water flow between the first pressure chamber and the second water storage chamber.

[0022] Further, the first air valve, the fourth air valve and the second pressure pump are electrically connected, so that when the second pressure pump works, the second pressure chamber is closed and the first water storage chamber is connected to the atmosphere, so as to facilitate the water in the second pressure chamber to be fully pumped into the first water storage chamber; when the second pressure pump is closed, the first water storage chamber is closed, so as to utilize the air pressure to avoid or limit the water flow between the first water storage chamber and the second pressure chamber.

[0023] Further, the car comprises a car body for carrying passengers or other cargos and a car frame, the car frame comprises a first frame and a second frame located at the lower part of the first frame, the second water tank is installed in the second frame, and the car body is installed in the first frame.

[0024] Further, the weight of the car side is the sum of the weight of the car, the second water tank and its content, and the passengers or other cargo in the car body; the weight of the counterweight side is the weight of the several pieces of counterweight blocks.

[0025] Further, the load weight measuring device measures the sum of the weight of the car, the second water tank and its content, and the passengers or other cargo in the car body (i.e. the weight of the car side). The mass of the counterweight side can be input into the controller as a set value according to the actual counterweight (the weight of the several pieces of counterweight blocks) before the elevator is operated.

[0026] Further, the weight of the car side, the amount of water in the second water tank needs to match the maximum load of the car, so that when the car is fully loaded, there is enough water in the second water tank to be discharged, so that the counterweight side and the car side are in real-time balance. When several passengers enter the car, the load weight measuring device can measure the increased weight of the car side under the current state, at this time the water in the second water tank is transported to the first water tank, the amount of water transported is the increase of the total weight of the car body and the passengers or other cargo in the car body, so that the weight of the car side is equal to the weight of the counterweight side.

[0027] Further, water can be replaced by other liquid media.

[0028] Further, the controller further comprises a first controller, the first controller is electrically connected with the load weight measuring device, a first air valve, a first flow control valve, a third air valve and a first electromagnetic valve; the controller further comprises a second controller, the second controller is electrically connected with the load weight measuring device, a second air valve, a second flow control valve, a fourth air valve and a second electromagnetic valve; in the working state, when the weight of the car side is greater than the weight of the counterweight side, the second air valve, the second flow control valve and the fourth air valve are opened, the second water outlet pipeline is closed, the second pressure chamber is in a pressure-free state, the water medium in the second water storage chamber enters the second pressure chamber under the control of the second flow control valve, and the weight of the water medium entering the second pressure chamber is equal to the difference between the weight of the car side and the weight of the counterweight side, then the second flow control valve and the fourth air valve are closed, the second water outlet pipeline is opened at the same time, the second pressure pump starts to pressurize, under the action of pressure, the water medium in the second pressure chamber is transported to the first water storage chamber through the first conveying pipe, at this time, the weight of the car side and the weight of the counterweight side are consistent, the ends of the traction motor are in a balanced state, and the energy consumption and the load are in the lowest working condition; when the water medium is transported, the second pressure pump and the second water outlet pipeline are closed, the second pressure chamber and the first water storage chamber are closed, so that the water flow between the second pressure chamber and the first water storage chamber is avoided or limited by using air pressure; when the weight of the car side is less than the weight of the counterweight side, the first air valve, the first flow control valve and the third air valve are opened, the first water outlet pipeline is closed, the first pressure chamber is in a pressure-free state, the water medium in the first water storage chamber enters the first pressure chamber under the control of the first flow control valve, the weight of the water medium entering the first pressure chamber is equal to the difference between the weight of the car side and the weight of the counterweight side, then the first flow control valve and the third air valve are closed, the first water outlet pipeline is opened at the same time, the first pressure pump starts to pressurize, under the action of pressure, the water medium in the first pressure chamber is transported to the second water storage chamber through the second conveying pipe, at this time, the weight of the car side and the weight of the counterweight side are consistent, the ends of the traction motor are in a balanced state, and the energy consumption and the load are in the lowest working condition; when the water medium is transported, the first pressure pump and the first water outlet pipeline are closed, the first pressure chamber and the second water storage chamber are closed, so that the water flow between the first pressure chamber and the second water storage chamber is avoided or limited by using air pressure.

[0029] Further, the first controller and the second controller are PLC controllers.

[0030] Compared with the prior art, the device has the following beneficial effects:

[0031] 1) The device provided by the utility model realizes the low working condition operation of the traction motor by adjusting the water quantity of the car water tank and the machine room water tank in real time, so that the weight of the car side and the weight of the counterweight side are equal during the operation of the elevator.

[0032] 2) The utility model provides a design scheme for the elevator with energy-saving demand. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is whole structure schematic view of real-time balancing device of counterweight and car of traction type elevator in the utility model;

[0034] Figure 2 It is structure schematic view of first water tank in the utility model;

[0035] Figure 3 It is internal structure schematic view of first water tank in the utility model;

[0036] Figure 4 It is structure schematic view of second water tank in the utility model;

[0037] Figure 5 It is internal structure schematic view of second water tank in the utility model;

[0038] Figure 6 It is schematic view of car balance module downlink in the utility model;

[0039] Figure 7 It is schematic view of car balance module uplink in the utility model;

[0040] Marking in the drawing is explained:

[0041] 1-first water tank, 11-first air valve, 12-first pressure pump, 13-first flow control valve, 14-third air valve, 15-second conveying pipe, 16-first water storage room, 17-first pressure room, 18-first water inlet pipeline, 19-first water outlet pipeline, 2-second water tank, 21-second air valve, 22-second water inlet pipeline, 23-second water outlet pipeline, 24-second flow control valve, 25-second pressure pump, 26-fourth air valve, 27-second water storage room, 28-second pressure room, 29-first conveying pipe, 3-tow chain, 4-car frame, 5-machine room ground, 6-load measuring device. DETAILED DESCRIPTION

[0042] The utility model will be explained in detail in combination with the drawings and specific embodiment. The following embodiment is implemented with the above-mentioned technical scheme of the utility model as the premise, gives detailed implementation mode and specific operation process, but the protection scope of the utility model is not limited to the following embodiment.

[0043] It should be noted that: similar signs and letters show similar items in the following drawings, therefore, once an item is defined in a drawing, it does not need to be further defined and explained in the subsequent drawings.

[0044] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0045] In the following embodiments, unless otherwise specified, the raw materials or processing techniques are conventional commercially available raw materials or conventional processing techniques in the art. Unless otherwise specified, the functional components or structures are conventional components or conventional structures used in the art to achieve the corresponding functions. Example

[0046] A device for real-time balancing of the counterweight and the car in a traction elevator, such as... Figure 1 As shown, the device includes a first water tank 1 (machine room water tank) independently installed on the machine room floor 5 relative to the traction elevator, a second water tank 2 (car water tank) installed on the car of the traction elevator, a regulating water circuit for connecting the first water tank 1 and the second water tank 2, a regulating pump set, and a controller. The first water tank 1 and the quality of the water in the first water tank 1 have no effect on the entire traction elevator; that is, the first water tank 1 serves as a backup water tank to regulate the weight on the counterweight side and the car side to balance the weight on the counterweight side and the car side. The regulating pump set is used to send water from the first water tank 1 to the second water tank 2 and to send water from the second water tank 2 to the first water tank 1. The elevator car includes a car body and a car frame 4. The car frame 4 includes a first frame and a second frame located below the first frame. The second water tank is installed in the second frame, and the car body is installed in the first frame. The car is also equipped with a load measuring device 6 for measuring the weight on the car side. The weight on the car side is the sum of the weight of the car, the second water tank 2 and its contents, and the weight of passengers or other goods in the car body. The weight on the counterweight side is the weight of several counterweight blocks. The load measuring device 6 can measure the total weight of the car body and the passengers or other goods in the car body. The weight on the counterweight side is input into the controller as a set value according to the actual counterweight (the weight of several counterweight blocks) before the elevator runs. Among the weight on the car side, the reserve water volume in the second water tank needs to match the maximum load capacity of the car so that when the car is fully loaded, there is enough water in the second water tank to be discharged, so that the counterweight side and the car side are in a real-time balanced state. The controller is electrically connected to the load measuring device 6 and the regulating pump set to adjust the water volume in the first water tank 1 and the second water tank 2, so that the car side is balanced with the counterweight side of the traction elevator. This device keeps the elevator's counterweight and car in a real-time balanced state. When several passengers enter the car, the load measuring device can measure the increase in weight on the car side under the current state. The increased weight is equal to the weight difference between the car side and the counterweight side. At this time, water in the second water tank is transferred to the first water tank. The amount of water transferred is the increase in the total weight of the car body and the passengers or other goods inside the car body, so that the weight on the car side is equal to that on the counterweight side.

[0047] Figure 2 Fig. 1 is a structural schematic diagram of the first water tank 1, Figure 3 Fig. 2 is a structural schematic diagram of the inside of the first water tank 1, which can be seen that the first water tank 1 comprises a first water tank body, a first partition plate arranged in the first water tank body, a first water storage bin 16 between the first partition plate and the top plate of the first water tank body, and a first pressure bin 17 between the first partition plate and the bottom plate of the first water tank body; the top plate of the first water storage bin 16 is provided with a first air valve 11, the outer wall of the first pressure bin 17 is provided with a third air valve 14 on the upper side, the top plate of the first water tank body is provided with a first water inlet pipeline 18, and the first water inlet pipeline 18 is communicated with the first water storage bin 16; the bottom plate of the first water tank body is provided with a first water outlet pipeline 19 with the functions of closing and opening, and the first water outlet pipeline 19 is communicated with the first pressure bin 17; the outer wall of the first water tank body is further provided with a first flow control valve 13, the first water storage bin 16 and the first pressure bin 17 are communicated through the first flow control valve 13, and the first flow control valve 13 is used for quantitatively controlling the volume of water medium entering the first pressure bin 17 from the first water storage bin 16; the controller comprises a first controller and a second controller, the first controller is electrically connected with the load weight measuring device 6, the first air valve 11, the first flow control valve 13, the third air valve 14, and the first electromagnetic valve;

[0048] Figure 4 Fig. 3 is a structural schematic diagram of the second water tank 2, Figure 5As shown in the schematic view of the internal structure of the second water tank 2, the second water tank 2 comprises a second water tank body, a second partition plate arranged in the second water tank body, a second water storage compartment 27 between the second partition plate and the top plate of the second water tank body, and a second pressure compartment 28 between the second partition plate and the bottom plate of the second water tank body. The second water storage compartment 27 is provided with a second air valve 21 on the top plate thereof. The outer wall of the second pressure compartment 28 is provided with a fourth air valve 26 on the upper side thereof. The top plate of the second water tank body is provided with a second water inlet pipeline 22, which is in communication with the second water storage compartment 27. The bottom plate of the second water tank body is provided with a second water outlet pipeline 23 having the functions of closing and opening of the valve, which is in communication with the second pressure compartment 28. The outer wall of the second water tank body is further provided with a second flow control valve 24. The second water storage compartment 27 and the second pressure compartment 28 are in communication through the second flow control valve 24, which is used for quantitatively controlling the volume of the water medium entering the second pressure compartment 28 from the second water storage compartment 27. The second controller is electrically connected with the load weight measuring device 6, the second air valve 21, the second flow control valve 24, the fourth air valve 26, and the second electromagnetic valve. The adjusting waterway comprises a first conveying pipeline 29 and a second conveying pipeline 15. The first water storage compartment 16 and the second pressure compartment 28 are connected through the first conveying pipeline 29. The first pressure compartment 17 and the second water storage compartment 27 are connected through the second conveying pipeline 15. One end of the first conveying pipeline 29 is connected with the first water inlet pipeline 18, and the other end thereof is connected with the second water outlet pipeline 23. One end of the second conveying pipeline 15 is connected with the second water inlet pipeline 22, and the other end thereof is connected with the first water outlet pipeline 19. The first conveying pipeline 29 and the second conveying pipeline 15 are provided with a tow chain 3 for protecting the conveying pipelines. The tow chain 3 moves upward or downward along with the second water tank 2. Figure 7 )or downward ( Figure 6 ). The adjusting pump set comprises a first pressure pump 12 arranged on the outer wall of the first pressure compartment 17 and a second pressure pump 25 arranged on the outer wall of the second pressure compartment 28. The first pressure pump 12 is used for conveying the water medium in the first pressure compartment 17 to the second water storage compartment 27 of the second water tank 2 through the second conveying pipeline 15. The second pressure pump 25 is used for conveying the water medium in the second pressure compartment 28 to the first water storage compartment 16 of the first water tank 1 through the first conveying pipeline 29.

[0049] The operation condition of the above-mentioned traction elevator counterweight and car real-time balancing device is as follows:

[0050] When the car is empty, the elevator load measuring device 6 can measure the total mass of the car side (the sum of the weight of the car body and the passengers or other cargo in the car body) in the current state. If the car side weight is less than the counterweight side weight, under the control of the first controller, the first air valve 11, the first flow control valve 13, and the third air valve 14 are opened, the first water outlet pipe 19 is closed, the first pressure chamber 17 is in a pressure-free state, the first flow control valve 13 starts to work, and the water medium in the first water storage chamber 16 enters the first pressure chamber 17 under the control of the first flow control valve 13, wherein the weight of the water medium entering the first pressure chamber 17 is equal to the difference (absolute value) between the car side weight and the counterweight side weight (the weight of the several counterweight blocks). Then the first flow control valve 13 and the third air valve 14 are closed, the first water outlet pipe 19 is opened, and the first pressure pump 12 starts to pressurize. By means of the pressure action, the water medium in the first pressure chamber 17 is transported to the second water storage chamber 27 of the second water tank 2 through the second conveying pipe 15, at this time the car side weight is equal to the counterweight side, the ends of the traction motor are in a balanced state, and the energy consumption and the load are in the lowest working condition. If the car side weight is greater than the counterweight side weight, under the control of the second controller, the second air valve 21, the second flow control valve 24, and the fourth air valve 26 are opened, the second water outlet pipe 23 is closed, the second pressure chamber 28 is in a pressure-free state, the second flow control valve 24 starts to work, and the water medium in the second water storage chamber 27 enters the second pressure chamber 28 under the control of the second flow control valve 24, wherein the weight of the water medium entering the second pressure chamber 28 is equal to the difference (absolute value) between the car side weight and the counterweight side weight. Then the second flow control valve 24 and the fourth air valve 26 are closed, the second water outlet pipe 23 is opened, and the second pressure pump 25 starts to pressurize. By means of the pressure action, the water medium in the second pressure chamber 28 is transported to the first water storage chamber 16 through the first conveying pipe 29, at this time the car side weight is equal to the counterweight side, the ends of the traction motor are in a balanced state, and the energy consumption and the load are in the lowest working condition.

[0051] When several passengers enter the car, the load weight measuring device 6 of the elevator can calculate the increased weight of the car side in the current state. At this time, according to the increased weight, the second air valve 21, the second flow control valve 24, the fourth air valve 26 are opened, the second water outlet pipeline 23 is closed, the second pressure chamber 28 is in a pressure-free state, and the water medium in the second water storage chamber 27 enters the second pressure chamber 28 under the control of the second flow control valve 24, wherein the weight of the water medium entering the second pressure chamber 28 is equal to the total weight of the several passengers. Then the second flow control valve 24 and the fourth air valve 26 are closed, the second water outlet pipeline 23 is opened, and the second pressure pump 25 starts to pressurize, and under the action of pressure, the water medium in the second pressure chamber 28 is transported to the first water storage chamber 16 of the first water tank 1 through the first conveying pipe 29. At this time, the weight of the car increased due to the entry of passengers is transferred to the first water tank 1 through the water medium, the weight of the car side is consistent with that of the counterweight side, the ends of the traction motor are in a balanced state, and the energy consumption and the load are in the lowest working condition.

[0052] Subsequently, if passengers enter or exit the car, the above method is followed: when the weight of the car side increases, the water medium with an equal weight is transferred from the car water tank to the machine room water tank; when the weight of the car side decreases, the water medium is transferred from the machine room water tank to the car water tank. In this way, the weight of the car side and the counterweight side can be kept equal during the operation of the elevator, and the traction motor can work in a low working condition.

[0053] In the above embodiments, the first controller and the second controller are PLC controllers, and the water medium can be replaced by other liquid medium as needed. The load weight measuring device is a sensor commonly provided in the elevator car for detecting the weight of the car side.

[0054] The above description of the embodiments is for the purpose of enabling those skilled in the art to understand and use the utility model. Those skilled in the art can easily make various modifications to these embodiments, and apply the general principles described herein to other embodiments without having to go through creative labor. Therefore, the utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art within the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A device for real-time balancing of the counterweight and car in a traction elevator, characterized in that, include: The first water tank (1) is set up independently relative to the traction elevator; The second water tank (2) is located on the car of the traction elevator, and the car is equipped with a load measuring device (6). Adjust the water passage to connect the first water tank (1) and the second water tank (2); The regulating pump set is used to send water from the first water tank (1) to the second water tank (2) and to send water from the second water tank (2) to the first water tank (1). The controller is electrically connected to the load measuring device (6) and the regulating pump group to adjust the water volume of the first water tank (1) and the second water tank (2) so that the total mass of the car and the second water tank (2) on the car side is balanced with the counterweight side of the traction elevator.

2. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 1, characterized in that, The first water tank (1) includes a first water tank body, a first partition disposed within the first water tank body, a first water storage chamber (16) located between the first partition and the top plate of the first water tank body, and a first pressure chamber (17) located between the first partition and the bottom plate of the first water tank body; the second water tank (2) includes a second water tank body, a second partition disposed within the second water tank body, a second water storage chamber (27) located between the second partition and the top plate of the second water tank body, and a second pressure chamber (28) located between the second partition and the bottom plate of the second water tank body; the regulating water circuit includes a first conveying pipe (29) and a second conveying pipe (15), the first water storage chamber (16) and the second pressure chamber (28) are connected through the first conveying pipe (29), and the first pressure chamber (17) and the second water storage chamber (27) are connected through the second conveying pipe (15).

3. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 2, characterized in that, The first water tank body has a first water inlet pipe (18) on the top plate, which is connected to the first water storage tank (16); the second water tank body has a second water outlet pipe (23) on the bottom plate, which is connected to the second pressure tank (28); one end of the first delivery pipe (29) is connected to the first water inlet pipe (18), and the other end is connected to the second water outlet pipe (23).

4. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 3, characterized in that, The second water tank body has a second water inlet pipe (22) on the top plate, which is connected to the second water storage tank (27); the first water tank body has a first water outlet pipe (19) on the bottom plate, which is connected to the first pressure tank (17); one end of the second delivery pipe (15) is connected to the second water inlet pipe (22), and the other end is connected to the first water outlet pipe (19).

5. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 4, characterized in that, The first delivery pipe (29) and the second delivery pipe (15) are provided with drag chains (3) to protect the delivery pipes; the first water outlet pipe (19) and the second water outlet pipe (23) are respectively provided with a first solenoid valve and a second solenoid valve. The first solenoid valve and the second solenoid valve are electrically connected to the controller to realize the closing and opening of the first water outlet pipe (19) and the second water outlet pipe (23).

6. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 5, characterized in that, The regulating pump set includes a first pressure pump (12) disposed on the outer wall of the first pressure chamber (17) and a second pressure pump (25) disposed on the outer wall of the second pressure chamber (28); the first pressure pump (12) is used to transport the water medium in the first pressure chamber (17) to the second water storage chamber (27) of the second water tank (2) through the second delivery pipe (15); the second pressure pump (25) is used to transport the water medium in the second pressure chamber (28) to the first water storage chamber (16) of the first water tank (1) through the first delivery pipe (29).

7. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 5, characterized in that, The outer wall of the first water tank body is also provided with a first flow control valve (13), the first water storage tank (16) and the first pressure tank (17) are connected through the first flow control valve (13), the first flow control valve (13) is used to quantitatively control the volume of water medium entering the first pressure tank (17) from the first water storage tank (16); the outer wall of the second water tank body is also provided with a second flow control valve (24), the second water storage tank (27) and the second pressure tank (28) are connected through the second flow control valve (24), the second flow control valve (24) is used to quantitatively control the volume of water medium entering the second pressure tank (28) from the second water storage tank (27).

8. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 5, characterized in that, The first water storage tank (16) is provided with a first air valve (11) on its top plate, the second water storage tank (27) is provided with a second air valve (21) on its top plate, the first pressure tank (17) is provided with a third air valve (14) on its upper outer wall, and the second pressure tank (28) is provided with a fourth air valve (26) on its upper outer wall.

9. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 8, characterized in that, The car includes a car body and a car frame (4). The car frame (4) includes a first frame and a second frame located at the lower part of the first frame. The second water tank is installed in the second frame, and the car body is installed in the first frame.

10. The device for real-time balancing of the counterweight and car in a traction elevator according to claim 9, characterized in that, The controller includes a first controller, which is electrically connected to the load measuring device (6), the first air valve (11), the first flow control valve (13), the third air valve (14), and the first solenoid valve; the controller also includes a second controller, which is electrically connected to the load measuring device (6), the second air valve (21), the second flow control valve (24), the fourth air valve (26), and the second solenoid valve.