WO2021169176A1 - Jointly- and independently-driven hybrid dual cab elevator and driving method therefor - Google Patents

Abstract

Disclosed are a jointly- and independently-driven hybrid dual cab elevator and a driving method therefor, comprising a main lifting/lowering system. The main lifting/lowering system comprises a main cab and a main traction motor. The dual cab elevator also comprises an auxiliary lifting/lowering system capable of moving with the main lifting/lowering system, also capable of moving independent of the main lifting/lowering system, and also capable of driving the movement of the main cab, and a balancing cable guide wheel set provided below the auxiliary lifting/lowering system. The auxiliary lifting/lowering system comprises an auxiliary cab provided below the main cab, an auxiliary control wheel set, an auxiliary traction cable connected to the auxiliary cab and wrapped on the auxiliary control wheel set, and an auxiliary traction motor. Not only can the main cab and the auxiliary operate independently, but the vertical distance between the main cab and the auxiliary cab can also be kept unchanged by means of mechanical measures of releasing and applying a brake with respect to the auxiliary control wheel, thus allowing the main cab and the auxiliary to rely on one traction motor for joint operation, and overcoming the problem with dual sub-cab operation when a certain traction motor malfunctions.

Description

Combined and independent hybrid driving double-car elevator and driving method thereof Technical field

The invention belongs to the field of elevator equipment, and particularly relates to a combined and independent hybrid driving double-car elevator and a driving method thereof.

Background technique

The existing twin elevators operate independently of the main car and the auxiliary car. After the traction machine corresponding to the upper car fails, the upper car hauled by the traction machine cannot work, thus occupying the upper hoistway space position, and Affect the operation of the lower car, resulting in reduced safety and low conveying efficiency; at the same time, after the traction machine corresponding to the lower car fails, the lower car traction by the traction machine cannot work, thus occupying the space of the lower hoistway. It also affects the operation of the upper car, resulting in reduced safety and low conveying efficiency; in addition, when a certain traction machine runs incorrectly or fails to brake, the minimum approach distance between the main car and the auxiliary car cannot be effectively guaranteed; Moreover, when the main car and the auxiliary car of the twin elevators are operated in combination with the same distance, because each car actually runs independently, it has extremely high requirements on the accuracy and stability of the electronic control, and it is difficult to achieve precise equal-spaced double cars. Car operation cannot be applied to the working condition of double cars running at equal intervals.

Summary of the invention

The purpose of the present invention is to provide a combined and independent hybrid drive dual-car elevator and its driving method. The main car and the auxiliary car can not only operate independently, but also can be realized by mechanical measures of releasing and applying brakes to the auxiliary control wheels. The combined drive of the main car and the auxiliary car makes the elevator operation safer.

In order to solve the above technical problems, the present invention adopts the following technical solutions: a combined and independent hybrid driving dual-car elevator driving method, the combined and independent hybrid driving dual-car elevator, which includes a main hoisting system, the main hoisting system includes The main car and the main traction machine, the double-car elevator also includes an auxiliary lifting system that can move with the main lifting system, can also move independently with respect to the main lifting system, and can drive the main car to move, and the device A balancing rope guide wheel set under the auxiliary lifting system, the auxiliary lifting system including an auxiliary car set below the main car, and an auxiliary control wheel set composed of auxiliary control wheels installed under the main car , Auxiliary traction rope and auxiliary traction machine connected to said auxiliary car and wound on said auxiliary control wheel set, said auxiliary traction machine has three working states of driving, braking and free rotation, so The auxiliary control wheel set has two states of brake release and braking. When the auxiliary control wheel set brakes, the main car and the auxiliary car are driven by the main traction machine to move synchronously or by the auxiliary The traction machine is independently driven to move synchronously or is driven separately by the main traction machine and the auxiliary traction machine. When the auxiliary control wheel set releases the brake, the main car and the auxiliary car are respectively driven by the main traction machine and the auxiliary traction machine. The traction machine and auxiliary traction machine are driven independently;

When the driving ratio of the double-car elevator is 1:1,

The main hoisting system also includes a main pulley, a main counterweight, a main balance rope, and a main traction rope connected between the main car and the main counterweight and bypassing the main traction machine and the main pulley ；

The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, and an auxiliary balance Rope, at least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car;

The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car; the auxiliary upper guide wheel and the auxiliary traction machine are respectively located on the two sides above the main car; each group of the auxiliary control wheel set is formed by the middle The auxiliary control wheel and the auxiliary lower guide wheel group are arranged in sequence to the outside position. The auxiliary control wheel has two states of brake release and braking. The auxiliary traction rope corresponds to one auxiliary control wheel group, and the auxiliary control wheels After the top of the car extends upward to bypass the respective auxiliary control wheels, it then extends downwards and bypasses the respective auxiliary lower guide wheel sets, and then one of them extends upward to the auxiliary upper guide wheel. The wheel is then fixedly connected to the auxiliary counterweight after bypassing the auxiliary traction machine, and the other one extends upward and directly bypasses the auxiliary traction machine and then is fixedly connected to the auxiliary counterweight; each of the auxiliary lower guide wheels The group includes two auxiliary lower guide wheels, the outermost two auxiliary lower guide wheels in the two auxiliary lower guide wheel sets are respectively located below the auxiliary upper guide wheel and the auxiliary traction machine,

The driving method includes the following operating modes: A. The main car and the auxiliary car operate in mutually independent driving modes, that is, first the auxiliary control wheel releases the brake and becomes the guide wheel, and then the main traction machine controls the movement of the main car or At rest, the auxiliary traction machine controls the auxiliary car to move or stand still, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes; B. The main car drives the auxiliary car The cars move together together, that is, first the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. At this time, the length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the main traction machine Drive to control the movement of the main car, then the vertical movement of the main car and the auxiliary car is driven by the main traction machine to control the movement of the main car, and the main car drives the auxiliary car to move together and maintain a fixed distance; C. The auxiliary traction rope is braked by the auxiliary control wheel and drives the main car to move together with the auxiliary car, that is, first the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. At this time, the auxiliary car and The length of the auxiliary traction rope between the auxiliary control wheels remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, then the vertical movement of the main car and the auxiliary car is controlled by the auxiliary traction machine. Auxiliary traction rope, the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance; D. Two traction machines drive the main car and the auxiliary car synchronously Jointly move together and maintain a fixed distance; that is, first the auxiliary control wheel applies the brake, then the auxiliary traction machine drives and controls the movement of the auxiliary car, the main traction machine drives and controls the movement of the main car, and the distance between the auxiliary car and the auxiliary control wheel The length of the auxiliary traction rope remains unchanged, and the two traction machines synchronously drive the main car and the auxiliary car to move together, maintain a fixed distance, and change the position in the vertical direction.

The present invention also provides a driving method for a combined and independent hybrid driving dual-car elevator. The combined and independent hybrid driving dual-car elevator includes a main hoisting system, and the main hoisting system includes a main car and a main traction machine. The double-car elevator also includes an auxiliary lifting system that can move with the main lifting system, can also move independently with respect to the main lifting system, and can drive the movement of the main car, and a balance rope arranged under the auxiliary lifting system Guide wheel set, the auxiliary lifting system includes an auxiliary car set below the main car, an auxiliary control wheel set composed of auxiliary control wheels installed below the main car, and the auxiliary car The auxiliary traction rope and auxiliary traction machine connected and wound on the auxiliary control wheel set, the auxiliary traction machine has three working states of driving, braking and free rotation, and the auxiliary control wheel set has a release mechanism Two states of driving and braking. When the auxiliary control wheel set is braked, the main car and the auxiliary car are driven to move synchronously by the main traction machine alone or by the auxiliary traction machine alone or synchronously. The main hoisting machine and the auxiliary hoisting machine are separately driven to act in synchronization. When the auxiliary control wheel set releases the brake, the main car and the auxiliary car are respectively driven by the main hoisting machine and the auxiliary hoisting machine. Independent drive

When the drive ratio of the elevator is 2:1,

The main lifting system also includes a main car anti-rope wheel, a main guide wheel, a main counterweight, a main counterweight anti-sheave installed on the main counterweight, and a main balance rope installed above the main car And the main traction rope, one end of the main traction rope is fixed in the hoistway and located above the highest point of the main counterweight travel path, and the other end of the main traction rope goes downwards around the main counterweight return sheave, and then upwards The main guide wheel, then bypasses the main traction machine from above, and then bypasses the main car reverse sheave, and finally extends upward and is fixed in the hoistway and above the highest point of the main car travel path;

The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, Auxiliary balance rope and auxiliary counterweight reverse sheave installed on the top of the auxiliary car. At least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car. One end of the auxiliary traction rope is fixed In the hoistway and above the highest point of the auxiliary counterweight travel path, the other end of the auxiliary counterweight goes down to bypass the auxiliary counterweight return sheave, then upwards to bypass the auxiliary traction machine, and then to bypass the auxiliary upper from above. The guide wheels, then go down one of the auxiliary control wheel sets, then go down the auxiliary car anti-rope pulley, and then go up to the other symmetrical auxiliary control wheel set, then extend upward and be fixed in the hoistway and Located above the highest point of the travel path of the main car;

The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car; each group of the auxiliary control wheel sets are sequentially provided with auxiliary control wheels and auxiliary lower guide wheel sets from the middle to the outer position, and the auxiliary control wheels have release brakes and brakes. In two states, one end of the auxiliary traction rope is fixed in the hoistway and is located above the highest point of the auxiliary counterweight traveling path, and the other end of the auxiliary traction rope goes downwards around the auxiliary counterweight anti-rope wheel, and then upwards around the auxiliary counterweight. The traction machine then bypasses the upper auxiliary guide wheel from above, and then after bypassing one of the auxiliary lower guide wheel sets downwards, it bypasses the auxiliary control wheel upwards, and then bypasses the auxiliary car reverse sheaves downwards , And then bypassing the other symmetrical auxiliary control wheel upwards, and after bypassing the symmetrical auxiliary lower guide wheel set downwards, it extends upwards and is fixed in the hoistway and is located at the highest point of the travel path of the main car Above

The driving method includes the following operating modes: A. The main car and the auxiliary car operate in mutually independent driving modes, that is, first the auxiliary control wheel releases the brake and becomes the guide wheel, and then the main traction machine controls the movement of the main car or At rest, the auxiliary traction machine controls the auxiliary car to move or stand still, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes; B. The main car drives the auxiliary car The cars move together together, that is, first the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. At this time, the length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the main traction machine Drive to control the movement of the main car, then the vertical movement of the main car and the auxiliary car is driven by the main traction machine to control the movement of the main car, and the main car drives the auxiliary car to move together and maintain a fixed distance; C. The auxiliary traction rope is braked by the auxiliary control wheel and drives the main car to move together with the auxiliary car, that is, first the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. At this time, the auxiliary car and The length of the auxiliary traction rope between the auxiliary control wheels remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, then the vertical movement of the main car and the auxiliary car is controlled by the auxiliary traction machine. Auxiliary traction rope, the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance; D. Two traction machines drive the main car and the auxiliary car synchronously Jointly move together and maintain a fixed distance; that is, first the auxiliary control wheel applies the brake, then the auxiliary traction machine drives and controls the movement of the auxiliary car, the main traction machine drives and controls the movement of the main car, and the distance between the auxiliary car and the auxiliary control wheel The length of the auxiliary traction rope remains unchanged, and the two traction machines synchronously drive the main car and the auxiliary car to move together, maintain a fixed distance, and change the position in the vertical direction.

The present invention also provides a combined and independent hybrid drive dual-car elevator, which includes a main hoisting system, the main hoisting system includes a main car and a main traction machine, the dual-car elevator also includes a main elevator The system moves, can also move independently relative to the main lifting system, and can drive the main car to move the auxiliary lifting system, as well as the balance rope guide wheel set under the auxiliary lifting system, the auxiliary lifting system includes The auxiliary car below the main car, the auxiliary control wheel set installed below the main car, the auxiliary traction rope connected to the auxiliary car and wound on the auxiliary control wheel set, and the auxiliary traction The auxiliary traction machine has three working states of driving, braking and free rotation, and the auxiliary control wheel set has two states of release brake and braking. When the auxiliary control wheel set brakes, The main car and the auxiliary car are driven separately by the main traction machine to move synchronously, or the auxiliary traction machine is separately driven to move synchronously, or the main traction machine and the auxiliary traction machine are separately driven to move synchronously, when the When the auxiliary control wheel group releases the brake, the main car and the auxiliary car are independently driven by the main traction machine and the auxiliary traction machine, respectively.

Optimized, when the driving ratio of the double-car elevator is 1:1,

The main hoisting system also includes a main pulley, a main counterweight, a main balance rope, and a main traction rope connected between the main car and the main counterweight and bypassing the main traction machine and the main pulley ；

The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, and an auxiliary balance Rope, at least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car;

The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car.

Further, the auxiliary upper guide wheel and the auxiliary traction machine are respectively located on two sides above the main car.

Further, each group of the auxiliary control wheel set is sequentially provided with an auxiliary control wheel and an auxiliary lower guide wheel set from the middle to the outer position, and the auxiliary control wheel has two states of release brake and brake, and the auxiliary traction ropes are respectively Correspond to one of the auxiliary control wheel sets, and respectively extend upward from the top of the auxiliary car to bypass the corresponding auxiliary control wheels, and then extend downward and bypass the respective auxiliary lower guide wheel sets , And then one of them extends upwards to the auxiliary upper guide wheel, and then bypasses the auxiliary traction machine and is fixedly connected to the auxiliary counterweight, and the other extends upwards to directly bypass the auxiliary traction machine and then connects with the auxiliary counterweight. The heavy phase is fixedly connected.

Furthermore, each of the auxiliary lower guide wheel sets includes two auxiliary lower guide wheels, and the two outermost auxiliary lower guide wheels in the two auxiliary lower guide wheel sets are respectively located on the auxiliary upper guide wheels. Below the wheel and auxiliary traction machine.

Optimized, when the drive ratio of the elevator is 2:1,

The main lifting system also includes a main car anti-rope wheel, a main guide wheel, a main counterweight, a main counterweight anti-sheave installed on the main counterweight, and a main balance rope installed above the main car And the main traction rope, one end of the main traction rope is fixed in the hoistway and located above the highest point of the main counterweight travel path, and the other end of the main traction rope goes downwards around the main counterweight return sheave, and then upwards The main guide wheel, then bypasses the main traction machine from above, and then bypasses the main car reverse sheave, and finally extends upward and is fixed in the hoistway and above the highest point of the main car travel path;

The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, Auxiliary balance rope and auxiliary counterweight reverse sheave installed on the top of the auxiliary car. At least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car. One end of the auxiliary traction rope is fixed In the hoistway and above the highest point of the auxiliary counterweight travel path, the other end of the auxiliary counterweight goes down to bypass the auxiliary counterweight return sheave, then upwards to bypass the auxiliary traction machine, and then to bypass the auxiliary upper from above. The guide wheels, then go down one of the auxiliary control wheel sets, then go down the auxiliary car anti-rope pulley, and then go up to the other symmetrical auxiliary control wheel set, then extend upward and be fixed in the hoistway and Located above the highest point of the travel path of the main car;

The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car.

Further, each group of the auxiliary control wheel set is sequentially provided with an auxiliary control wheel and an auxiliary lower guide wheel set from the middle to the outer position. The auxiliary control wheel has two states of release brake and brake, and one end of the auxiliary traction rope It is fixed in the hoistway and located above the highest point of the auxiliary counterweight traveling path, and its other end passes down the auxiliary counterweight return sheave, then passes the auxiliary traction machine upwards, and then passes the auxiliary counterweight from above. The upper guide wheel, after passing one of the auxiliary lower guide wheel sets downwards, passes the auxiliary control wheel upwards, then passes the auxiliary car anti-rope wheel downwards, and then passes the other symmetrical auxiliary car upwards. After the control wheel, after bypassing the other symmetrical auxiliary lower guide wheel set, it extends upward and is fixed in the hoistway and is located above the highest point of the travel path of the main car.

The present invention also provides a driving method based on a combined and independent hybrid driving double-car elevator, which includes the following steps: firstly, the auxiliary control wheel releases the brake and becomes a guide wheel, and then the main traction machine controls the main car to move or stop. , The auxiliary traction machine controls the movement or static of the auxiliary car, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes.

The present invention also provides a driving method based on a combined and independent hybrid driving double-car elevator, which includes the following steps: firstly, the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. The length of the auxiliary traction rope between the control wheels remains unchanged, and then the main traction machine drives and controls the movement of the main car, and the vertical movement of the main car and the auxiliary car is controlled by the main traction machine. When the car moves, the main car drives the auxiliary car to move together and keep a fixed distance.

The present invention also provides a driving method based on a combined and independent hybrid driving double-car elevator, which includes the following steps: firstly, the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. At this time, the auxiliary car and the auxiliary car The length of the auxiliary traction rope between the control wheels remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, then the vertical movement of the main car and the auxiliary car is controlled by the auxiliary traction machine. The traction rope, the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance.

The present invention also provides a driving method based on a combined and independent hybrid driving dual-car elevator, which includes the following steps: firstly, the auxiliary control wheel applies the brake, and then the auxiliary traction machine drives the auxiliary car to control the movement of the auxiliary car, and the main traction machine drives Control the movement of the main car. The length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged. The two traction machines synchronously drive the main car and the auxiliary car to move together and maintain a fixed distance. Move the position in the vertical direction.

The beneficial effect of the present invention is that the main car and the auxiliary car can not only operate independently, but also can keep the vertical distance between the main car and the auxiliary car unchanged by mechanical measures of releasing and applying the brake to the auxiliary control wheel, thereby The main car and the auxiliary car can rely on one traction machine for joint operation, so as to overcome the operation problem of the twin elevator when a certain traction machine fails. In addition, under non-fault conditions, compared to the dual-car elevators through electronic control measures to maintain constant vertical distance joint operation, the dual-car elevator adopts mechanical measures to brake the auxiliary control wheel, which has high stability and is easy to implement. And this mechanical measure can further guarantee the minimum proximity distance between the main car and the auxiliary car, making the elevator operation safer. In addition, the combined driving method of the auxiliary traction machine can realize safe driving under the failure of the main traction machine, that is, when the main traction machine fails, the main traction machine loses power, the auxiliary control wheel releases the brake, and the auxiliary traction machine drive controls the auxiliary traction machine. The traction rope drives the auxiliary car to move. When the auxiliary car and the main car have a traction distance, the auxiliary control wheel brakes, and then the auxiliary traction machine drives the main car and the auxiliary car to move together and maintain a fixed distance. And make the position movement change in the vertical direction, realize the joint movement under the main traction machine failure; adopt the main traction machine combined drive method, can realize the safe drive under the auxiliary traction machine failure, that is, when the auxiliary traction machine In the event of a failure, the auxiliary traction machine loses power, the auxiliary control wheel releases the brake, and the main traction machine drives and controls the main traction rope to drive the main car to move. When the auxiliary car and the main car have a traction distance, the auxiliary control wheel brakes Then, the main traction machine drives the main car and the auxiliary car to move together, keeping a fixed distance, and changing the position in the vertical direction to realize the safe driving of the auxiliary traction machine in case of failure.

Description of the drawings

Figure 1 is a 1:1 driving schematic diagram of a combined and independent hybrid drive double-car elevator in the first embodiment;

Figures 2a-2e are schematic diagrams of independent driving methods for the respective movements of the main and auxiliary double cars in the first embodiment;

3a-3e are schematic diagrams of an independent driving method in which the main car moves and the auxiliary car is stationary in the first embodiment;

4a-4e are schematic diagrams of the combined driving method of the main traction machine in the first embodiment;

5a-5e are schematic diagrams of the combined driving method of the auxiliary traction machine in the first embodiment;

6a-6e are schematic diagrams of the synchronous combined driving method of the main traction machine and the auxiliary traction machine in the first embodiment;

Figure 7 is a schematic diagram of 2:1 driving of a combined and independent hybrid drive double-car elevator in the second embodiment;

Figure 8 is a schematic diagram of the 2:1 driving of the combined and independent hybrid drive double-car elevator in the third embodiment;

Among them: 1-main traction rope, 2-auxiliary upper guide wheel, 3-auxiliary traction rope, 4-main car, 5-auxiliary control wheel, 6-auxiliary lower guide wheel group, 7-auxiliary car, 8 -Balance rope guide wheel set, 9-main balance rope guide wheel, 10-auxiliary balance rope guide wheel, 11-main balance rope, 12-auxiliary balance rope, 13-main counterweight, 14-auxiliary counterweight, 15-auxiliary Traction machine, 16-main traction sheave, 17-main traction machine, 18-main car anti-rope, 19 main counterweight anti-rope, 20- auxiliary car anti-rope, 21- auxiliary counterweight anti-rope wheel.

Detailed ways

In order to make the above objectives, features, and advantages of the present application more obvious and understandable, the specific implementation manners of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to fully understand this application. However, this application can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.

The present invention will be described in detail below in conjunction with the embodiments shown in the drawings:

Figure 1 schematically shows an advantageous embodiment of the combined and independent hybrid drive dual-car elevator of the present invention.

The main car 4 and the auxiliary car 7 are arranged up and down. After the main hoist rope 1 is connected to the top of the main car 4, it bypasses the main hoisting machine 17 and the main guide pulley 16, and connects to the main counterweight 13.

At the bottom of the main car 4 are fixedly installed an auxiliary lower guide wheel group 6 and an auxiliary control wheel. Among them, the auxiliary lower guide wheel group 6 has two guide wheels on the left and right sides of the main car 4, and these guide wheels are opposite to The main car 4 is symmetrically distributed from left to right. There are two auxiliary control wheels, which are symmetrically distributed with respect to the main car 4.

One auxiliary traction rope 3 is symmetrically distributed on the left and right sides of the auxiliary car 7. After connecting the auxiliary car 7, one auxiliary traction rope 3 bypasses the auxiliary control wheel on the left side of the main car 4 from bottom to top, and then From top to bottom, bypass the two guide wheels in the auxiliary lower guide wheel set 6 on the left side of the main car 4, and then pull upwards to go over and guide the auxiliary lower guide wheel set 6 on the leftmost side of the main car 4 The auxiliary upper guide wheels 2 installed at the same left and right positions of the wheels are connected to the auxiliary counterweight 14 after bypassing the auxiliary traction machine 15. After the other auxiliary traction rope 3 is connected to the auxiliary car 7, it passes the auxiliary control wheel on the right side of the main car 4 from bottom to top, and then passes the auxiliary lower guide wheel group 6 on the right side of the main car 4 from top to bottom. The two guide wheels in the middle are then pulled upward, and after the auxiliary traction machine 15 installed at the same left and right positions as the auxiliary lower guide wheel set 6 at the rightmost guide wheel of the main car 4, connect the auxiliary counterweight 14 . As a result, the auxiliary traction rope 3 between the auxiliary lower guide wheel group 6 and the auxiliary upper guide wheel 2 is in a vertical state, so that the auxiliary traction rope 3 between the auxiliary lower guide wheel group 6 and the auxiliary traction machine 15 It is upright.

A main balance rope guide wheel 9 is arranged directly below the main wheel 16, an auxiliary balance rope guide wheel 10 is arranged directly below the auxiliary traction machine 15, and a balance rope guide wheel set is arranged directly below the auxiliary car 7 8. The main balance rope 1 connected to the main counterweight 13 is connected to the bottom of the main car 4 after bypassing the main balance rope guide wheel 9 and the balance rope guide wheel group 8 in sequence. The auxiliary balance rope 12 connected to the auxiliary counterweight 14 is connected to the bottom of the main car 4 after bypassing the auxiliary balance rope guide wheel 10 and the balance rope guide wheel group 8 in sequence. , Due to the stability of the balance wheel and the main and auxiliary balance ropes, the stable operation of the main and auxiliary cars is ensured, and no errors will be generated due to frustration, thereby ensuring the accuracy and stability of the operation.

Among all the guide wheels, only the auxiliary lower guide wheel group 6 and the auxiliary control wheel are installed at the bottom of the main car 4 that can move vertically relative to the hoistway. The traction machine 15 is fixed relative to the hoistway.

The auxiliary traction machine 15 has three states: driving, braking, and no driving and no braking. The auxiliary control wheel has two states: releasing the brake and applying the brake.

In the combined and independent hybrid drive double-car elevator of the present invention, the main car 4 is independently controlled by the main traction machine 17, and the working status of the auxiliary traction machine 15, the auxiliary control wheel and the main traction machine 17 is changed, corresponding to a double car The following driving methods of the car elevator:

In Figure 2, the main traction machine 17 drives and controls the movement of the main car 4; the auxiliary control wheel releases the brake and turns into a guide wheel, the auxiliary traction machine 15 drives and controls the movement of the auxiliary car 7, and the auxiliary car 7 is controlled by the auxiliary traction machine 15. Independent control, the positions of the two cars in the vertical direction are operated and changed independently of each other, that is, independent driving of the respective movements of the two cars is realized;

In Figure 3, the main traction machine 17 drives and controls the movement of the main car 4; the auxiliary control wheel releases the brake and turns into a guide wheel, and the auxiliary traction machine 15 brakes and controls the auxiliary car 7 to stand still, and the main car 4 is upright. The position in the direction is operated and changed independently, that is, independent driving of the main car 4 in motion and the auxiliary car 7 at rest is realized;

In Fig. 4, the main traction machine 17 drives and controls the movement of the main car 4, the auxiliary control wheel applies the brake, the auxiliary traction machine 15 releases driving and braking, and the auxiliary traction rope 3 between the auxiliary car 7 and the auxiliary control wheel The length of the two cars remains unchanged. The movement of the two cars in the vertical direction is driven by the main traction machine 17 to control the movement of the main car 4, and the main car 4 drives the auxiliary car 7 to move together and maintain a fixed distance. Move the position in the vertical direction to realize the joint drive of the main traction machine 17;

The combined driving method of the main traction machine 17 can realize safe driving when the auxiliary traction machine 15 fails, that is, when the auxiliary traction machine 15 fails, the auxiliary traction machine 15 loses power, the auxiliary control wheel releases the brake, and the main traction machine 15 fails. The machine 17 drives and controls the main traction rope 1 to drive the main car 4 to move. When the auxiliary car 7 and the main car 4 have a traction distance, the auxiliary control wheel brakes, and then the main traction machine 17 drives the main car 4 and the auxiliary car 4 The car 7 moves in a joint movement together, maintains a fixed distance, and changes the position in the vertical direction to realize joint movement when the auxiliary traction machine 15 fails.

In Figure 5, the auxiliary traction machine 15 drives and controls the movement of the auxiliary car 7, the auxiliary control wheel applies the brake, the main traction machine 17 releases the drive and the brake, and the auxiliary traction rope 3 between the auxiliary car 7 and the auxiliary control wheel The length of the two cars remains unchanged. The movement of the two cars in the vertical direction is driven by the auxiliary traction machine 15 to control the auxiliary traction rope 3. The auxiliary traction rope 3 is braked by the auxiliary control wheel to drive the main car 4, The auxiliary car 7 moves together and keeps a fixed distance, and changes the position in the vertical direction, which realizes the joint driving of the auxiliary traction machine 15;

The combined driving method of the auxiliary traction machine 15 can realize safe driving when the main traction machine 17 fails, that is, when the main traction machine 17 fails, the main traction machine 17 loses power, the auxiliary control wheel releases the brake, and the auxiliary traction machine 17 fails. 15 Drive and control the auxiliary traction rope 3 to drive the auxiliary car 7 to move. When the auxiliary car 7 and the main car 4 have a traction distance, the auxiliary control wheel brakes, and then the auxiliary traction machine 15 drives the main car 4 and the auxiliary car Carriage 7 moves together and keeps a fixed distance, and changes the position in the vertical direction to realize the joint movement when the main traction machine 17 fails.

In Figure 6, the auxiliary traction machine 15 drives and controls the movement of the auxiliary car 7, the auxiliary control wheel applies brakes, and the main traction machine 17 drives and controls the movement of the auxiliary car 7, and the auxiliary traction between the auxiliary car 7 and the auxiliary control wheel The length of the rope 3 remains unchanged, and the two traction machines synchronously drive the main car 4 and the auxiliary car 7 to move together, keeping a fixed distance, and changing the position in the vertical direction to achieve the main traction. The hoisting machine 17 and the auxiliary hoisting machine 15 are synchronously and jointly driven. Through the mechanical measures of releasing and applying the brake to the auxiliary control wheel, the vertical distance between the main car and the auxiliary car is kept unchanged.

Example two

As shown in FIG. 7, the fixed positions of the main traction rope 1 and the main auxiliary traction rope 3 and the main counterweight and the auxiliary counterweight are on the same side above the main car 4.

When the drive ratio of the elevator is 2:1, the main hoisting system also includes the main car reverse sheave 18 installed above the main car 4, the main guide pulley 16, the main counterweight 13, and the main counterweight 13 The main counterweight anti-rope 19, the main balance rope 1 and the main traction rope 1. One end of the main traction rope 1 is fixed in the hoistway and located above the highest point of the travel path of the main counterweight 13, and the other end is passed downwards The main counterweight anti-rope wheel 19, then upwardly bypasses the main guide sheave 16, then bypasses the main traction machine 17 from above, and then downwardly bypasses the main car anti-rope sheave 18, and finally extends upward and is fixed in the hoistway and Located above the highest point of the travel path of the main car 4; the auxiliary lifting system includes an auxiliary counterweight 14, an auxiliary upper guide wheel 2 located in the hoistway and above the main car 4, a Auxiliary balance rope 12 guide wheel 10, auxiliary balance rope 12, and auxiliary counterweight reversing sheave 21 installed on the top of the auxiliary car 7, at least two of the auxiliary control wheel sets 5 and two of them are symmetrically arranged in the main car 4 Below, one end of the auxiliary traction rope 3 is fixed in the hoistway and above the highest point of the auxiliary counterweight traveling path, and the other end of the auxiliary traction rope goes downwards through the auxiliary counterweight anti-sheave 21, and then upwards through the auxiliary traction machine 15. , And then bypass the auxiliary upper guide wheel 2 from above, then go down one of the auxiliary control wheel sets 5, and then pass the auxiliary car anti-rope wheel 20 downwards, and then go up to the other symmetrical auxiliary control wheel set 5 It extends upwards and is fixed in the hoistway and is located above the highest point of the travel path of the main car 4; the balance rope guide wheel set 8 has two balance wheels for winding the main balance rope 1 and the auxiliary balance rope 12, two balance wheels The wheels can rotate relatively independently. One end of the main balance rope 1 is fixedly connected to the lower end of the main counterweight 13, and the other end is fixedly connected to the bottom of the auxiliary car 7 after bypassing the main balance rope 1 guide wheel 9 and one of the balance wheels. One end of the rope 12 is fixedly connected to the lower end of the auxiliary counterweight, and the other end is fixedly connected to the bottom of the auxiliary car 7 after bypassing the auxiliary balance rope 12 guide wheels 10 and one of the balance wheels.

Each auxiliary control wheel group 5 is provided with auxiliary control wheel and auxiliary lower guide wheel group 6 from the middle to the outer position in sequence. The auxiliary control wheel has two states of release brake and brake, and one end of the auxiliary traction rope 3 is fixed in the hoistway. And it is located above the highest point of the auxiliary counterweight traveling path, and its other end goes downwards around the auxiliary counterweight reverse sheave, then upwards around the auxiliary traction machine 15, and then bypasses the auxiliary upper guide wheel 2 from above, and then toward After bypassing one of the auxiliary lower guide wheel sets 6, upwardly, bypassing the auxiliary control wheel, then downwardly bypassing the auxiliary car anti-rope wheel 20, and then upwardly bypassing the other symmetrical auxiliary control wheel, and then downwardly bypassing Another symmetrical auxiliary lower guide wheel set 6 extends upward and is fixed in the hoistway and is located above the highest point of the travel path of the main car 4.

Example three

As shown in FIG. 8, the fixed positions of the main traction rope 1 and the main auxiliary traction rope 3 and the main counterweight and the auxiliary counterweight are on the two sides above the main car 4.

When the drive ratio of the elevator is 2:1, the main hoisting system also includes the main car reverse sheave 18 installed above the main car 4, the main guide pulley 16, the main counterweight 13, and the main counterweight 13 The main counterweight anti-rope 19, the main balance rope 1 and the main traction rope 1. One end of the main traction rope 1 is fixed in the hoistway and located above the highest point of the travel path of the main counterweight 13, and the other end is passed downwards The main counterweight anti-rope wheel 19, then upwardly bypasses the main guide sheave 16, then bypasses the main traction machine 17 from above, and then downwardly bypasses the main car anti-rope sheave 18, and finally extends upward and is fixed in the hoistway and Located above the highest point of the travel path of the main car 4; the auxiliary lifting system includes the auxiliary counterweight 14, the auxiliary balance rope 12 located in the hoistway and below the auxiliary traction machine 15, the guide wheel 10, the auxiliary balance rope 12 and the auxiliary car The auxiliary counterweight anti-sheave 21 on the top of the car 7, and the auxiliary control wheel group 5 has at least two and two of them are symmetrically arranged under the main car 4, and one end of the auxiliary traction rope 3 is fixed in the hoistway and located in the auxiliary pair Above the highest point of the re-traveling path, the other end of it goes downwards around the auxiliary counterweight anti-rope wheel 21, then upwards around the auxiliary traction machine 15, and then downwards around one of the auxiliary control wheel sets 5 and then downwards. After passing the auxiliary car anti-rope 20 and then going up to bypass another symmetrical auxiliary control wheel group 5, it extends upward and is fixed in the hoistway and is located above the highest point of the travel path of the main car 4; the balance rope guide wheel group 8 has two Two balance wheels for winding the main balance rope 1 and the auxiliary balance rope 12 respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope 1 is fixedly connected to the lower end of the main counterweight 13, and the other end bypasses the main balance rope. 1 The guide wheel 9 and one of the balance wheels are fixedly connected to the bottom of the auxiliary car 7, one end of the auxiliary balance rope 12 is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope 12, the guide wheel 10 and one of the balance wheels The rear is fixedly connected to the bottom of the auxiliary car 7.

Each auxiliary control wheel group 5 is provided with auxiliary control wheel and auxiliary lower guide wheel group 6 from the middle to the outer position in sequence. The auxiliary control wheel has two states of release brake and brake, and one end of the auxiliary traction rope 3 is fixed in the hoistway. And it is located above the highest point of the auxiliary counterweight traveling path, and its other end goes downwards around the auxiliary counterweight reverse sheave, then upwards around the auxiliary traction machine 15, and then bypasses the auxiliary upper guide wheel 2 from above, and then toward After bypassing one of the auxiliary lower guide wheel sets 6, upwardly, bypassing the auxiliary control wheel, then downwardly bypassing the auxiliary car anti-rope wheel 20, and then upwardly bypassing the other symmetrical auxiliary control wheel, and then downwardly bypassing Another symmetrical auxiliary lower guide wheel set 6 extends upward and is fixed in the hoistway and is located above the highest point of the travel path of the main car 4.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and their purpose is to enable those familiar with the technology to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (13)

1. A driving method for a combined and independent hybrid driving dual-car elevator, characterized in that the combined and independent hybrid driving dual-car elevator includes a main hoisting system, and the main hoisting system includes a main car and a main traction machine, The double-car elevator also includes an auxiliary lifting system that can move with the main lifting system, can also move independently with respect to the main lifting system, and can drive the main car to move, and a balance rope guide provided under the auxiliary lifting system A wheel set, the auxiliary lifting system includes an auxiliary car set below the main car, an auxiliary control wheel set composed of auxiliary control wheels installed below the main car, and connected to the auxiliary car And the auxiliary traction rope and auxiliary traction machine wound on the auxiliary control wheel set, the auxiliary traction machine has three working states of driving, braking and free rotation, and the auxiliary control wheel set has the release brake When the auxiliary control wheel set is braked, the main car and the auxiliary car are driven by the main traction machine to move synchronously or the auxiliary traction machine is driven separately or separately. The main traction machine and the auxiliary traction machine are independently driven to act in synchronization. When the auxiliary control wheel set releases the brake, the main car and the auxiliary car are independent of the main traction machine and the auxiliary traction machine. drive;

   When the driving ratio of the double-car elevator is 1:1,

   The main hoisting system also includes a main pulley, a main counterweight, a main balance rope, and a main traction rope connected between the main car and the main counterweight and bypassing the main traction machine and the main pulley ；

   The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, and an auxiliary balance Rope, at least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car;

   The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car; the auxiliary upper guide wheel and the auxiliary traction machine are respectively located on the two sides above the main car; each group of the auxiliary control wheel set is formed by the middle The auxiliary control wheel and the auxiliary lower guide wheel group are arranged in sequence to the outside position. The auxiliary control wheel has two states of brake release and braking. The auxiliary traction rope corresponds to one auxiliary control wheel group, and the auxiliary control wheels After the top of the car extends upward to bypass the respective auxiliary control wheels, it then extends downwards and bypasses the respective auxiliary lower guide wheel sets, and then one of them extends upward to the auxiliary upper guide wheel. The wheel is then fixedly connected to the auxiliary counterweight after bypassing the auxiliary traction machine, and the other one extends upward and directly bypasses the auxiliary traction machine and then is fixedly connected to the auxiliary counterweight; each of the auxiliary lower guide wheels The group includes two auxiliary lower guide wheels, the outermost two auxiliary lower guide wheels in the two auxiliary lower guide wheel sets are respectively located below the auxiliary upper guide wheel and the auxiliary traction machine,

   The driving method includes the following operating modes: A. The main car and the auxiliary car operate in mutually independent driving modes, that is, first the auxiliary control wheel releases the brake and becomes the guide wheel, and then the main traction machine controls the movement of the main car or At rest, the auxiliary traction machine controls the auxiliary car to move or stand still, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes; B. The main car drives the auxiliary car The cars move together together, that is, first the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. At this time, the length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the main traction machine Drive to control the movement of the main car, then the vertical movement of the main car and the auxiliary car is driven by the main traction machine to control the movement of the main car, and the main car drives the auxiliary car to move together and maintain a fixed distance; C. The auxiliary traction rope is braked by the auxiliary control wheel and drives the main car to move together with the auxiliary car, that is, first the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. At this time, the auxiliary car and The length of the auxiliary traction rope between the auxiliary control wheels remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, then the vertical movement of the main car and the auxiliary car is controlled by the auxiliary traction machine. Auxiliary traction rope, the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance; D. Two traction machines drive the main car and the auxiliary car synchronously Jointly move together and maintain a fixed distance; that is, first the auxiliary control wheel applies the brake, then the auxiliary traction machine drives and controls the movement of the auxiliary car, the main traction machine drives and controls the movement of the main car, and the distance between the auxiliary car and the auxiliary control wheel The length of the auxiliary traction rope remains unchanged, and the two traction machines synchronously drive the main car and the auxiliary car to move together, maintain a fixed distance, and change the position in the vertical direction.
2. A driving method for a combined and independent hybrid driving dual-car elevator, characterized in that the combined and independent hybrid driving dual-car elevator includes a main hoisting system, and the main hoisting system includes a main car and a main traction machine, The double-car elevator also includes an auxiliary lifting system that can move with the main lifting system, can also move independently with respect to the main lifting system, and can drive the main car to move, and a balance rope guide provided under the auxiliary lifting system A wheel set, the auxiliary lifting system includes an auxiliary car set below the main car, an auxiliary control wheel set composed of auxiliary control wheels installed below the main car, and connected to the auxiliary car And the auxiliary traction rope and auxiliary traction machine wound on the auxiliary control wheel set, the auxiliary traction machine has three working states of driving, braking and free rotation, and the auxiliary control wheel set has the release brake When the auxiliary control wheel set is braked, the main car and the auxiliary car are driven by the main traction machine to move synchronously or the auxiliary traction machine is driven separately or separately. The main traction machine and the auxiliary traction machine are independently driven to act in synchronization. When the auxiliary control wheel set releases the brake, the main car and the auxiliary car are independent of the main traction machine and the auxiliary traction machine. drive;

   When the drive ratio of the elevator is 2:1,

   The main lifting system also includes a main car anti-rope wheel, a main guide wheel, a main counterweight, a main counterweight anti-sheave installed on the main counterweight, and a main balance rope installed above the main car And the main traction rope, one end of the main traction rope is fixed in the hoistway and located above the highest point of the main counterweight travel path, and the other end of the main traction rope goes downwards around the main counterweight return sheave, and then upwards The main guide wheel, then bypasses the main traction machine from above, and then bypasses the main car reverse sheave, and finally extends upward and is fixed in the hoistway and above the highest point of the main car travel path;

   The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, Auxiliary balance rope and auxiliary counterweight reverse sheave installed on the top of the auxiliary car. At least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car. One end of the auxiliary traction rope is fixed In the hoistway and above the highest point of the auxiliary counterweight travel path, the other end of the auxiliary counterweight goes down to bypass the auxiliary counterweight return sheave, then upwards to bypass the auxiliary traction machine, and then to bypass the auxiliary upper from above. The guide wheels, then go down one of the auxiliary control wheel sets, then go down the auxiliary car anti-rope pulley, and then go up to the other symmetrical auxiliary control wheel set, then extend upward and be fixed in the hoistway and Located above the highest point of the travel path of the main car;

   The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car; each group of the auxiliary control wheel sets are sequentially provided with auxiliary control wheels and auxiliary lower guide wheel sets from the middle to the outer position, and the auxiliary control wheels have release brakes and brakes. In two states, one end of the auxiliary traction rope is fixed in the hoistway and is located above the highest point of the auxiliary counterweight traveling path, and the other end of the auxiliary traction rope goes downwards around the auxiliary counterweight anti-rope wheel, and then upwards around the auxiliary counterweight. The traction machine then bypasses the upper auxiliary guide wheel from above, and then after bypassing one of the auxiliary lower guide wheel sets downwards, it bypasses the auxiliary control wheel upwards, and then bypasses the auxiliary car reverse sheaves downwards , And then bypassing the other symmetrical auxiliary control wheel upwards, and after bypassing the symmetrical auxiliary lower guide wheel set downwards, it extends upwards and is fixed in the hoistway and is located at the highest point of the travel path of the main car Above

   The driving method includes the following operating modes: A. The main car and the auxiliary car operate in mutually independent driving modes, that is, first the auxiliary control wheel releases the brake and becomes the guide wheel, and then the main traction machine controls the movement of the main car or At rest, the auxiliary traction machine controls the auxiliary car to move or stand still, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes; B. The main car drives the auxiliary car The cars move together together, that is, first the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. At this time, the length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the main traction machine Drive to control the movement of the main car, then the vertical movement of the main car and the auxiliary car is driven by the main traction machine to control the movement of the main car, and the main car drives the auxiliary car to move together and maintain a fixed distance; C. The auxiliary traction rope is braked by the auxiliary control wheel and drives the main car to move together with the auxiliary car, that is, first the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. At this time, the auxiliary car and The length of the auxiliary traction rope between the auxiliary control wheels remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, then the vertical movement of the main car and the auxiliary car is controlled by the auxiliary traction machine. Auxiliary traction rope, the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance; D. Two traction machines drive the main car and the auxiliary car synchronously Jointly move together and maintain a fixed distance; that is, first the auxiliary control wheel applies the brake, then the auxiliary traction machine drives and controls the movement of the auxiliary car, the main traction machine drives and controls the movement of the main car, and the distance between the auxiliary car and the auxiliary control wheel The length of the auxiliary traction rope remains unchanged, and the two traction machines synchronously drive the main car and the auxiliary car to move together, maintain a fixed distance, and change the position in the vertical direction.
3. A combined and independent hybrid drive dual-car elevator, characterized in that it includes a main hoisting system, the main hoisting system includes a main car and a main traction machine, and the dual-car elevator also includes a main hoisting system The auxiliary lifting system that can move independently of the main lifting system and can drive the main car to move, and the balance rope guide wheel set arranged under the auxiliary lifting system, the auxiliary lifting system includes The auxiliary car below the main car, the auxiliary control wheel group composed of auxiliary control wheels installed under the main car, the auxiliary traction wheel connected to the auxiliary car and around the auxiliary control wheel group Rope and auxiliary traction machine. The auxiliary traction machine has three working states: drive, brake and free rotation. The auxiliary control wheel set has two states: release brake and brake. When the auxiliary control wheel During group braking, the main car and the auxiliary car are driven separately by the main traction machine to move synchronously, or by the auxiliary traction machine alone, or are separately driven and synchronized by the main traction machine and auxiliary traction machine. When the auxiliary control wheel set releases the brake, the main car and the auxiliary car are independently driven by the main traction machine and the auxiliary traction machine, respectively.
4. The combined and independent hybrid drive dual-car elevator according to claim 1, characterized in that: when the driving ratio of the dual-car elevator is 1:1,

   The main hoisting system also includes a main pulley, a main counterweight, a main balance rope, and a main traction rope connected between the main car and the main counterweight and bypassing the main traction machine and the main pulley ；

   The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, and an auxiliary balance Rope, at least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car;

   The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car.
5. The combined and independent hybrid drive dual-car elevator according to claim 2, wherein the auxiliary upper guide wheel and the auxiliary traction machine are respectively located on two sides above the main car.
6. The combined and independent hybrid drive double-car elevator according to claim 2, characterized in that: each group of the auxiliary control wheel sets are sequentially provided with auxiliary control wheels, auxiliary lower guide wheels, and auxiliary control wheels from the middle to the outer position. There are two states of brake release and braking. The auxiliary traction ropes respectively correspond to one of the auxiliary control wheel sets, and respectively extend upward from the top of the auxiliary car to bypass the corresponding auxiliary control wheels, Then extend downward and bypass the respective corresponding auxiliary lower guide wheel sets, and then one of them extends upward to the auxiliary upper guide wheel, and then bypasses the auxiliary traction machine and is fixedly connected with the auxiliary counterweight, The other one extends upward and directly bypasses the auxiliary traction machine and is fixedly connected with the auxiliary counterweight.
7. The combined and independent hybrid drive double-car elevator according to claim 4, characterized in that: each of the auxiliary lower guide wheel sets includes two auxiliary lower guide wheels, and the two auxiliary lower guide wheel sets are at the most The two outer auxiliary lower guide wheels are respectively located below the auxiliary upper guide wheel and the auxiliary traction machine.
8. The combined and independent hybrid drive dual-car elevator according to claim 1, characterized in that:

   When the drive ratio of the elevator is 2:1,

   The main lifting system also includes a main car anti-rope wheel, a main guide wheel, a main counterweight, a main counterweight anti-sheave installed on the main counterweight, and a main balance rope installed above the main car And the main traction rope, one end of the main traction rope is fixed in the hoistway and located above the highest point of the main counterweight travel path, and the other end of the main traction rope goes downwards around the main counterweight return sheave, and then upwards The main guide wheel, then bypasses the main traction machine from above, and then bypasses the main car reverse sheave, and finally extends upward and is fixed in the hoistway and above the highest point of the main car travel path;

   The auxiliary lifting system includes an auxiliary counterweight, an auxiliary upper guide wheel located in the hoistway and above the main car, an auxiliary balance rope guide wheel located in the hoistway and below the auxiliary traction machine, Auxiliary balance rope and auxiliary counterweight reverse sheave installed on the top of the auxiliary car. At least two auxiliary control wheel sets and two of them are symmetrically arranged under the main car. One end of the auxiliary traction rope is fixed In the hoistway and above the highest point of the auxiliary counterweight travel path, the other end of the auxiliary counterweight goes down to bypass the auxiliary counterweight return sheave, then upwards to bypass the auxiliary traction machine, and then to bypass the auxiliary upper The guide wheels, then go down one of the auxiliary control wheel sets, then go down the auxiliary car anti-rope pulley, and then go up to the other symmetrical auxiliary control wheel set, then extend upward and be fixed in the hoistway and Located above the highest point of the travel path of the main car;

   The balance rope guide wheel set has two balance wheels for winding the main balance rope and the auxiliary balance rope respectively. The two balance wheels can rotate relatively independently. One end of the main balance rope is connected to the main counterweight. The lower end is fixedly connected, and the other end bypasses the main balance rope guide wheel and one of the balance wheels and is fixedly connected to the bottom of the auxiliary car. One end of the auxiliary balance rope is fixedly connected to the lower end of the auxiliary counterweight, and the other end bypasses the auxiliary balance rope guide wheel And one of the balance wheels is fixedly connected to the bottom of the auxiliary car.
9. The combined and independent hybrid drive double-car elevator according to claim 6, characterized in that: each group of the auxiliary control wheel sets are sequentially provided with auxiliary control wheels, auxiliary lower guide wheels, and auxiliary control wheels from the middle to the outer position. There are two states of brake release and braking. One end of the auxiliary traction rope is fixed in the hoistway and located above the highest point of the auxiliary counterweight traveling path, and the other end of the auxiliary traction rope passes downwards around the auxiliary counterweight return sheave , And then bypass the auxiliary traction machine upwards, then bypass the auxiliary upper guide wheels from above, and then go down one of the auxiliary lower guide wheels, bypass the auxiliary control wheels upwards, and then go downwards The auxiliary car anti-rope wheel, after passing the other symmetrical auxiliary control wheel upwards, and after passing the other symmetrical auxiliary lower guide wheel set downwards, extends upwards and is fixed in the hoistway and is located in the main car Above the highest point of the carriage path.
10. A driving method based on any one of the above-mentioned combined and independent hybrid driving double-car elevator, characterized in that it comprises the following steps: firstly the auxiliary control wheel releases the brake and becomes the guide wheel, and then the main traction machine controls the main When the car is moving or stationary, the auxiliary traction machine controls the motion or stationary of the auxiliary car, and the auxiliary car is independently controlled by the auxiliary traction machine. At this time, the main car and the auxiliary car run in mutually independent driving modes.
11. A driving method based on any one of the above-mentioned combined and independent hybrid driving double-car elevators, characterized in that it comprises the following steps: firstly, the auxiliary control wheel applies the brake and the auxiliary traction machine releases the driving and braking. The length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the main traction machine drives and controls the movement of the main car, and the vertical movement of the main car and the auxiliary car passes through the main traction machine. The driving machine drives and controls the movement of the main car, and the main car drives the auxiliary car to move together and keep a fixed distance.
12. A driving method based on any one of the above-mentioned combined and independent hybrid driving dual-car elevator, characterized in that it comprises the following steps: firstly, the auxiliary control wheel applies the brake and the main traction machine releases the driving and braking. The length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, and the vertical movement of the main car and the auxiliary car passes through the auxiliary traction machine. The hoisting machine drives and controls the auxiliary traction rope, and the auxiliary traction rope is braked by the auxiliary control wheel to drive the main car to move together with the auxiliary car and keep a fixed distance.
13. A driving method based on any one of the above-mentioned combined and independent hybrid driving double-car elevator, characterized in that it comprises the following steps: firstly the auxiliary control wheel applies the brake, and then the auxiliary traction machine drives and controls the movement of the auxiliary car, The main traction machine drives and controls the movement of the main car. The length of the auxiliary traction rope between the auxiliary car and the auxiliary control wheel remains unchanged. The two traction machines drive the main car and the auxiliary car together to move together. Keep a fixed distance and move the position in the vertical direction.

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