A method for adjusting the balance of a car

Abstract

The present invention discloses a method for adjusting the balance of a car, by calculating the weight W of the position where the compensation device is located when the car is in the middle layer. 补 , park the car at the bottom floor, and place a balancing weight W at the corresponding compensation device position of the car 平 , used to simulate the weight W of the compensation device at the location of the middle layer 补 , adjust the car to a balanced state; when the car is located at the middle layer, the car guide shoe is balanced by force F 导 =0; when the car is at the bottom floor, the car guide shoe is subjected to force F 导 <‑F 许 When the car is at the top floor, the car guide shoe is subjected to force F 导 <+F 许 ; When the car is running in the entire building shaft, the force range of the car guide shoe is ‑F 许 <F 导 <+F 许 The present invention takes the middle layer of the car as a reference and adjusts the balance state when the car is located in the middle layer. The force on the top guide shoe will be reduced by half, which greatly increases the life of the guide shoe and improves the comfort of the car operation.

Description

Technical Field

[0001] The invention relates to the technical field of elevator installation, in particular to a method for adjusting the balance of a car. Background Art

[0002] Existing vertical elevators have cables, compensation chains or cables at the bottom of the car. When adjusting the balance of the car, the car is placed on the bottom floor to adjust the balance of the car; however, as the lifting height increases, the force on the car guide shoes will also increase. Nowadays, there are more and more high-rise buildings, and the lifting height of elevators is getting higher and higher. If the car balance is still adjusted at the bottom floor of the car, the force on the guide shoes will be the largest when approaching the top floor, often exceeding the allowable force value, which affects the comfort of the elevator operation and the service life of the guide shoes. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art. Taking the middle layer of the car as a reference, the balance state of the car is adjusted when it is in the middle layer. The force on the top guide shoe will be reduced by half, which greatly improves the life of the guide shoe and improves the comfort of the car operation.

[0004] The present invention is achieved through the following technical solutions:

[0005] A method for adjusting the balance of the car, used to adjust the balance of the car to ensure that the force on the car guide shoe is within the allowable value, that is, F 导 <F 许 , where: the weight W of the compensation device at the middle layer of the car 补 , park the car at the bottom floor, and place a balancing weight W at the corresponding compensation device position of the car 平 , used to simulate the weight W of the compensation device at the location of the middle layer 补 , adjusting the car to a balanced state;

[0006] When the car is located at the middle layer, the force on the guide shoe of the car is balanced F 导 =0;

[0007] When the car is at the bottom floor, the car guide shoe is subjected to force F 导 >-F 许 ;

[0008] When the car is at the top floor, the car guide shoe is subjected to force F 导 <+F 许 ;

[0009] When the car is running in the entire building shaft, the force range of the car guide shoe is -F 许 <F 导 <+F 许 .

[0010] Furthermore, when the balancing weight is used to adjust the balance of the car, W 平＝ W 补 .

[0011] Furthermore, the car is based on the middle layer, and the guide shoe is subjected to force F 导 = 0, the car moves upward, the guide shoe is subjected to force F 导 As the car goes down, the guide shoe is subjected to force F 导 It also increases accordingly, and the force direction is opposite.

[0012] Furthermore, the compensation device comprises a cable, a compensation chain or a compensation cable at the bottom of the car.

[0013] Beneficial effects of the present invention:

[0014] The present invention calculates the weight W of the position where the compensation device is located when the car is in the middle layer 补 , park the car at the bottom floor, and place a balancing weight W at the corresponding compensation device position of the car 平 , used to simulate the weight W of the compensation device at the location of the middle layer 补 , adjust the car to a balanced state; when the car is located at the middle layer, the car guide shoe is balanced by force F 导 =0; when the car is at the bottom floor, the car guide shoe is subjected to force F 导 >-F 许 When the car is at the top floor, the car guide shoe is subjected to force F 导 <+F 许 When the car is running in the entire building shaft, the force range of the car guide shoe is -F 许 <F 导 <+F 许 The present invention takes the middle layer of the car as a reference and adjusts the balance state when the car is located in the middle layer. The force on the top guide shoe will be reduced by half, which greatly increases the life of the guide shoe and improves the comfort of the car operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a flow chart of a method for adjusting the balance of a car according to an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the structure of an elevator device according to an embodiment of the present invention;

[0017] Figure 3 A schematic top view of an elevator device according to an embodiment of the present invention.

[0018] In the attached figure: 1-car; 2-cable; 3-compensating chain or cable; 4-counterweight; 5-car guide rail; 6-car position where the compensating chain or cable is located; 7-car position where the cable is located; 8-balancing counterweight block; 9-counterweight guide rail; 10-car guide shoe. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0020] It should be noted that in the present invention, the descriptions of "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] In the present invention, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Reference Figure 2 and Figure 3 A method for adjusting the balance of a car, for adjusting the balance of a car, comprises a car 1, a cable 2, a compensating chain or cable 3, a counterweight 4, a car guide rail 5, and a counterweight guide rail 9. The car 1 comprises a car position 6 where the compensating chain or cable is located and a car position 7 where the cable is located; ensure that the force on the car guide shoe 10 is within the allowable value, i.e., F 导 <F 许 , where: the weight W of the compensation device at the middle layer of car 1 is calculated 补 , park the car 1 at the bottom floor, and place a balancing weight W at the corresponding compensation device position of the car 1 平 , used to simulate the weight W of the compensation device at the location of the middle layer 补 , adjusting the car 1 to a balanced state;

[0023] When the car 1 is located at the middle layer, the force on the guide shoe 10 is balanced. 导 =0;

[0024] When the car 1 is located at the bottom floor, the car guide shoe 10 is subjected to a force F 导 >-F 许 ;

[0025] When the car 1 is located at the top floor, the car guide shoe 10 is subjected to a force F 导 <+F 许 ;

[0026] When the car 1 is running in the entire building hoistway, the force range of the car guide shoe 10 is -F 许 <F 导 <+F 许 .

[0027] Specifically, in this embodiment, the balancing weight block 8 is used to adjust the balance of the car 1. 平＝ W 补 .

[0028] Specifically, in this embodiment, the car 1 is based on the middle layer, and the guide shoe is subjected to force F 导 = 0, the car 1 moves upward, and the guide shoe is subjected to force F 导 As the car 1 moves downward, the guide shoe is subjected to force F 导 It also increases accordingly, and the force direction is opposite.

[0029] Reference Figure 1 Specifically, the implementation steps of the present invention are:

[0030] Step S1: When the car 1 is at the middle layer, calculate the weight W of the compensation device at this position. 补 ;

[0031] Step S2: Car 1 stops at the lowest level, adjust the balance of the car, and place a balancing weight W at the position of the car compensation device (car position 6 where the compensation chain or cable is located and car position 7 where the cable is located). 平 ;

[0032] Step S3: The car 1 is at the lowest level. The balancing weight 8 is used to adjust the car 1 to a horizontal state, that is, the guide shoe is subjected to force F. 导 =0;

[0033] Step S4: When the car 1 goes up to the top floor, the guide shoe is subjected to force F 导 <+F 许 ;

[0034] Step S5: When the car 1 descends to the lowest floor, the guide shoe is subjected to force F 导 >-F 许 ;

[0035] When the car 1 is running in the entire building shaft, the force range of the car guide shoe is -F 许 <F 导 <+F 许 .

[0036] The present invention takes the middle layer of the car as a reference and adjusts the balance state when the car is located in the middle layer. The force on the guide shoe on the top layer will be reduced by half, which greatly increases the life of the guide shoe and improves the comfort of the car operation.

[0037] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for adjusting the balance of the car, used to adjust the balance of the car to ensure that the force on the car guide shoe is within the allowable value, that is, F 导 <F 许 , characterized in that, Calculate the weight W of the compensation device at the middle layer of the car 补 , park the car at the bottom floor, and place a balancing weight W at the corresponding compensation device position of the car 平 , used to simulate the weight W of the compensation device at the location of the middle layer 补 , adjusting the car to a balanced state; When the car is located at the middle layer, the force on the guide shoe of the car is balanced F 导 =0; When the car is at the bottom floor, the car guide shoe is subjected to force F 导 >-F 许 ; When the car is at the top floor, the car guide shoe is subjected to force F 导 <+F 许 ; When the car is running in the entire building shaft, the force range of the car guide shoe is -F 许 <F 导 <+F 许 .

2. A method for adjusting the balance of a car according to claim 1, characterized in that: When the balancing weight is used to adjust the balance of the car, 平＝ W 补 .

3. A method for adjusting the balance of a car according to claim 1, characterized in that: The car is based on the middle layer, and the guide shoe is subjected to force F 导 = 0, the car moves upward, the guide shoe is subjected to force F 导 As the car goes down, the guide shoe is subjected to force F 导 It also increases accordingly, and the force direction is opposite.

4. A method for adjusting the balance of a car according to claim 1, characterized in that: The compensating device comprises a cable, a compensating chain or a compensating cable at the bottom of the car.

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