Elevator compensation fracture detection device

Abstract

An elevator compensation fracture detection device relates to the technical field of elevators and comprises an elevator car, an elevator counterweight and a compensation device arranged between the elevator car and the elevator counterweight. A lift car side compensation fracture detection device and a counterweight side compensation fracture detection device which are used for sensing whether the compensation chain and the compensation cable are fractured are correspondingly arranged at the positions, corresponding to the lift car side and the counterweight side up and down, of the bottom pit. And the free ends of the compensation chain and the compensation cable are detected and found by the car side compensation fracture detection device or the counterweight side compensation fracture detection device along with the movement of the car or the counterweight, and the car side compensation fracture detection device or the counterweight side compensation fracture detection device sends out a fault signal to control the elevator to stop running and wait for maintenance. When the compensation is broken, the compensation is changed into a free falling body state from a hanging state, a safety switch on the detection device is triggered, a signal is sent to an elevator control system, an elevator is made to stop running, and maintenance personnel are guided to overhaul related parts.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to an elevator compensation fracture detection device. Background Art

[0002] The elevator compensating device is a device that connects the elevator car and the counterweight and is used to balance the elevator. Common compensating devices include compensating chains, cables, and ropes.

[0003] During the operation of the elevator, when the car and the counterweight are at different heights, the hanging weight of the wire rope on the car side and the counterweight side is different. One end of the compensation device is connected to the car and the other end is connected to the counterweight to balance the hanging weight of the wire rope on the car and the counterweight side. When the car moves from a lower position to a higher position, the hanging weight of the wire rope on the car side gradually decreases, and the hanging weight of the compensation device gradually increases, thereby compensating for the reduced weight of the wire rope on the car side, so that the hanging weight on the car side is in a relatively stable state; similarly, when the counterweight moves from a lower position to a higher position, the compensation device can compensate for the reduced weight of the wire rope on the counterweight side. The relative balance of the weight of the car and the counterweight side is conducive to the smooth operation of the elevator and saves energy consumption of the traction main unit.

[0004] During the operation of the elevator, the compensation device may suffer fatigue fracture due to periodic cyclic stress, thus affecting the smooth and safe operation of the elevator and the passenger experience. Existing elevator products do not have a structure to detect whether the compensation chain (cable) is broken. Once a break occurs, the smooth operation of the elevator is affected. The broken compensation chain hangs freely on the car and counterweight, and may collide or scratch other components in the hoistway, affecting the safety of the elevator. If the elevator continues to be used after the compensation device breaks, the elevator will work in an unstable state, which will affect the passengers' elevator experience and the service life of the elevator components. The break will not be discovered until maintenance and repair, and the safety hazards cannot be eliminated in time. Summary of the invention

[0005] The purpose of the present invention is to provide an elevator compensation fracture detection device to solve the technical defects of the prior art pointed out in the background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] An elevator compensation fracture detection device comprises an elevator car, an elevator counterweight, and a compensation device arranged between the elevator car and the elevator counterweight. A car-side compensation fracture detection device and a counterweight-side compensation fracture detection device for sensing whether a compensation chain and a compensation cable are broken are arranged at corresponding upper and lower pit positions on the car side and the counterweight side. After the compensation chain and the compensation cable are broken, under the action of gravity, the free ends of the compensation chain and the compensation cable are detected by the car-side compensation fracture detection device or the counterweight-side compensation fracture detection device along with the movement of the car or the counterweight. The car-side compensation fracture detection device or the counterweight-side compensation fracture detection device sends a fault signal to control the elevator to stop running and wait for maintenance.

[0008] Furthermore, the car side compensating fracture detection device includes a U-shaped support plate with an upward opening, a pair of guide plates symmetrically and inclinedly arranged on the inner sides of the U-shaped support plate, and a detection component arranged under the guide plate, and the upward opening of the U-shaped support plate is opposite to the elevator car up and down.

[0009] Furthermore, the guide plate is arranged to be tilted downward, a guide opening is formed between a pair of guide plates, and the detection component is arranged below the guide opening.

[0010] Furthermore, the structure of the counterweight side compensating fracture detection device is the same as that of the car side compensating fracture detection device.

[0011] Furthermore, the detection component is one or more of a switch, a conductor, and a sensor.

[0012] The compensation device is one of a compensation chain, a compensation cable and a compensation rope.

[0013] Furthermore, after being triggered, the detection component sends a signal to the elevator control system, controls the elevator to stop running, and issues a fault code. The maintenance personnel check the fault code, lock the fault location, and take corresponding repair and replacement measures to restore the elevator to normal operation.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention proposes an elevator compensation fracture detection device, which is provided with an elevator car, an elevator counterweight, a compensation device, a car-side compensation fracture detection device, and a counterweight-side compensation fracture detection device. When a compensation chain (cable) breaks, the compensation changes from a suspended state to a free-fall state, and a safety switch on the detection device is triggered through a guide structure on the fracture detection device, thereby sending a signal to the elevator control system to stop the elevator from running, and issuing a fault code to guide maintenance personnel to inspect relevant components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is an overall schematic diagram of the installation of the fracture compensation device of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the compensating fracture device of the present invention;

[0019] Figure 3 It is an overall schematic diagram of the car side compensation fracture detection device of the present invention;

[0020] Figure 4 It is a three-dimensional schematic diagram of the car side compensation fracture detection device of the present invention;

[0021] Figure 5 This is an overall schematic diagram of the compensation fracture trigger detection device of the present invention;

[0022] Figure 6 A three-dimensional schematic diagram of a detection device for triggering compensation fracture of the present invention;

[0023] Figure 7 This is an overall schematic diagram of the present invention cooperating with the detection device when compensating for fracture;

[0024] Figure 8 A three-dimensional schematic diagram of the present invention cooperating with the detection device when compensating for fracture;

[0025] Fig. 9 It is a three-dimensional schematic diagram of the present invention cooperating with the guide plate when compensating for fracture.

[0026] In the figure: 1. elevator car, 2. elevator counterweight, 3. compensation device, 4. car side compensation fracture detection device, 401. U-shaped support plate, 402. guide plate, 403. detection component, 5. counterweight side compensation fracture detection device. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] like Figure 1-9As shown, an elevator compensation fracture detection device comprises an elevator car 1, an elevator counterweight 2, and a compensation device 3 arranged between the elevator car 1 and the elevator counterweight 2. A car-side compensation fracture detection device 4 and a counterweight-side compensation fracture detection device 5 for sensing whether a compensation chain or a compensation cable is broken are correspondingly arranged at corresponding upper and lower pit positions on the car side and the counterweight side. After the compensation chain or the compensation cable is broken, under the action of gravity, the free ends of the compensation chain or the compensation cable are detected by the car-side compensation fracture detection device 4 or the counterweight-side compensation fracture detection device 5 along with the movement of the car or the counterweight, and the car-side compensation fracture detection device 4 or the counterweight-side compensation fracture detection device 5 sends a fault signal to control the elevator to stop running and wait for maintenance.

[0029] The present invention proposes an elevator compensation fracture detection device, which is provided with an elevator car 1, an elevator counterweight 2, a compensation device 3, a car-side compensation fracture detection device 4, and a counterweight-side compensation fracture detection device 5. When the compensation chain (cable) breaks, the compensation changes from a suspended state to a free fall state, and a safety switch on the detection device is triggered through a guide structure on the fracture detection device, thereby sending a signal to the elevator control system to stop the elevator from running, and issuing a fault code to guide maintenance personnel to inspect relevant components.

[0030] Specifically, the installation positions of the car side compensating fracture detection device 4 and the counterweight side compensating fracture detection device 5 can be set not only on the pit floor, but also on the guide rails, car frame, counterweight frame, compensation device, etc., depending on whether the device can be triggered when the compensation fracture occurs.

[0031] Specifically, as shown in the figure, the car-side compensating fracture detection device 4 includes a U-shaped support plate 401 with an upward opening, a pair of guide plates 402 symmetrically and tiltedly arranged on the inner sides of the U-shaped support plate 401, and a detection component 403 arranged below the guide plate 402. The upward opening of the U-shaped support plate 401 is opposite to the elevator car 1 up and down.

[0032] Specifically, as shown in the figure, the guide plate 402 is tilted downward, a guide opening is formed between a pair of guide plates 402, and the detection assembly 403 is arranged below the guide opening. Specifically, in addition to the above structure, the guide part can also be set as other devices and structures for guiding the compensation rope and cable.

[0033] Specifically, as shown in the figure, the structure of the counterweight side compensating fracture detection device 5 is the same as that of the car side compensating fracture detection device 4.

[0034] Specifically, as shown in the figure, the detection component 403 is one or more of a switch, a conductor, and a sensor, whichever is capable of receiving and sending signals.

[0035] Specifically, as shown in the figure, the compensation device 3 is one of a compensation chain, a compensation cable, and a compensation rope.

[0036] Specifically, as shown in the figure, after the detection component 403 is triggered, it sends a signal to the elevator control system, controls the elevator to stop running, and issues a fault code. The maintenance personnel checks the fault code, locks the fault location, and takes corresponding maintenance and replacement measures to restore the elevator to normal operation.

[0037] Specifically, the specific implementation principle of the present invention is that when the elevator is operating normally, the compensation device 3 and the car-side compensation fracture detection device 4 and the weight-side compensation fracture detection device 5 do not interfere with each other, and will not trigger the car-side compensation fracture detection device 4 and the weight-side compensation fracture detection device 5 to operate. When the compensation device 3 breaks, the installation state of the compensation device 3 changes to a state in which one end is suspended (fixed end) and the other end is freely hanging (free end). Under the action of gravity, as the car or counterweight moves, the free end of the compensation device 3 will fall on the car-side compensation fracture detection device 4 or the weight-side compensation fracture detection device 5, pass through the guide plate 402 (or directly fall on the detection component 403), triggering the detection component 403, and the triggered serial number 403 or 503 sends a signal to the elevator control system to stop the elevator and issue a fault code. The maintenance personnel lock the fault location by checking the fault code, and take corresponding maintenance and replacement measures to reset the switch to restore the elevator to normal operation.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An elevator compensating fracture detection device, comprising an elevator car (1), an elevator counterweight (2), and a compensating device (3) arranged between the elevator car (1) and the elevator counterweight (2), wherein: A car side compensation fracture detection device (4) and a counterweight side compensation fracture detection device (5) are provided at corresponding upper and lower pit positions on the car side and the counterweight side for sensing whether the compensation chain and the compensation cable are broken. After the compensation chain and the compensation cable are broken, under the action of gravity, the free ends of the compensation chain and the compensation cable are detected by the car side compensation fracture detection device (4) or the counterweight side compensation fracture detection device (5) along with the movement of the car or the counterweight. The car side compensation fracture detection device (4) or the counterweight side compensation fracture detection device (5) sends a fault signal, and controls the elevator to stop running and wait for maintenance.

2. An elevator compensation fracture detection device according to claim 1, characterized in that: The car side compensating fracture detection device (4) comprises a U-shaped support plate (401) with an upward opening, a pair of guide plates (402) symmetrically and obliquely arranged on the inner sides of the U-shaped support plate (401) facing each other, and a detection assembly (403) arranged below the guide plates (402), wherein the upward opening of the U-shaped support plate (401) is vertically opposite to the elevator car (1).

3. An elevator compensation fracture detection device according to claim 2, characterized in that: The guide plates (402) are arranged to tilt downward, a guide opening is formed between a pair of guide plates (402), and the detection component (403) is arranged below the guide opening.

4. An elevator compensation fracture detection device according to claim 3, characterized in that: The structure of the counterweight side compensating fracture detection device (5) is the same as that of the car side compensating fracture detection device (4).

5. An elevator compensation fracture detection device according to claim 4, characterized in that: The detection component (403) is one or more of a switch, a conductor, and a sensor.

6. An elevator compensation fracture detection device according to claim 5, characterized in that: The compensation device (3) is one of a compensation chain, a compensation cable, and a compensation rope.

7. An elevator compensation fracture detection device according to claim 6, characterized in that: After being triggered, the detection component (403) sends a signal to the elevator control system, controls the elevator to stop running, and issues a fault code. The maintenance personnel checks the fault code, locates the fault location, and takes corresponding maintenance and replacement measures to restore the elevator to normal operation.

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