Elevator traction sheave offset wear detection device

Abstract

The utility model relates to the field of elevator detection, and discloses an elevator traction sheave offset wear detection device, which comprises a wall body and a fixed rod connected with the wall body, the fixed rod is connected with two sides of a detection frame, the detection frame is provided with a traction sheave assembly, two sides of the traction sheave assembly are provided with offset detection assemblies, and the offset detection assemblies are connected with the wall body. An abrasion detection assembly is arranged below the traction wheel assembly; the action deviation of the traction wheel is detected through the deviation detection assembly, when the traction wheel deviates, the pressure detector is extruded, the pressure detector transmits a pressure numerical value to the motor control box, and when the pressure numerical value exceeds a safety range, the motor control box controls the buzzer to give an alarm and controls the traction motor to slowly brake the traction wheel to stop operation; the abrasion condition of the steel wire groove of the traction wheel is detected through the abrasion detection assembly, when the steel wire groove is abraded, a gap can be generated between the traction wheel and the driven wheel, the speed of the driven wheel is reduced, the speed difference is generated, and the velometer detects the speed difference to give an alarm for reminding.

Description

Technical Field

[0001] The utility model relates to the field of elevator detection, in particular to an elevator traction wheel deviation wear detection device. Background Art

[0002] Elevators are a type of transportation equipment commonly found in buildings. Elevators are driven by a traction machine, which moves the elevator and counterweight back and forth on both sides of the traction wheel to change different heights. The elevator traction wheel guides and pulls the steel wire rope that suspends the car and the counterweight. The traction wheel is usually provided with multiple grooves for embedding the steel wire rope. The friction between the traction wheel and the steel wire rope is large, and the wear is more. The traction wheel needs to be repaired and replaced after working for a long time, but the degree of wear cannot be accurately assessed. If wear and tilt occur during operation, it will affect the guidance of the steel wire traction, resulting in insufficient traction, which will pose a hidden danger to the operation of the elevator.

[0003] According to the patent application number CN201822116610.4, an elevator traction wheel offset wear detection device is provided, including a traction wheel and a bearing structure connected to the traction wheel, the bearing structure is fixed on the crossbeam of the top machine room, a plurality of steel wire grooves are opened on the outer peripheral surface of the traction wheel, a steel wire rope is embedded in the steel wire groove, both ends of the traction wheel are connected to the bearing structure through a rotating shaft, a straight beam is arranged above the traction wheel, the straight beam is connected and fixed on the crossbeam, a deviation detector is connected to the lower part of the straight beam, the deviation detector includes a plurality of probe rods, the probe rods extend downward from the lower surface of the straight beam, the number of the probe rods corresponds to the number of the steel wire grooves, each probe rod corresponds to a steel wire groove and extends into the steel wire groove, the probe rod does not contact the side wall of the steel wire groove and the steel wire rope in the groove, the device is a deviation wear detection device for use on a traction machine or a traction wheel, has the advantages of automatic detection and intuitive display of alarm information, and can be applied to a variety of existing elevator devices.

[0004] There are still some deficiencies in this patent application. This patent can only detect the overall offset of the traction wheel and the offset between the wire grooves, but cannot detect the degree of wear of the wire grooves. After the wire grooves are worn, different rotation radii are generated to form different linear speeds, which causes speed differences between the wires, causing safety hazards. Therefore, an elevator traction wheel offset wear detection device is needed to solve this problem. Utility Model Content

[0005] An elevator traction wheel offset wear detection device comprises a wall and a fixing rod connected to the wall, the fixing rod is connected to two sides of a detection frame, a traction wheel assembly is arranged on the detection frame, offset detection assemblies are arranged on both sides of the traction wheel assembly, and a wear detection assembly is arranged below the traction wheel assembly.

[0006] Preferably, a motor control box is provided on the top of the detection frame, a buzzer is provided on the motor control box, and the traction wheel assembly comprises a traction wheel, and the traction wheel is provided with a plurality of wire grooves.

[0007] Preferably, the traction wheel is fixed on the main shaft, one end of the main shaft is connected to the traction motor, and the other end is engaged with the main shaft sleeve, the main shaft sleeve is connected to the detection frame, and the wire groove is provided with a traction wire.

[0008] Preferably, the offset detection assembly includes a contact rod, which is arranged on both sides of the traction wheel, the contact rod is engaged with a rod sleeve, a pressure spring is arranged in the rod sleeve, one end of the pressure spring is connected to the contact rod, and the other end is connected to the pressure detector.

[0009] Preferably, the wear detection assembly includes a driven wheel, the driven wheel is arranged below the traction wheel, the driven wheel fits the arc surface of the wire groove, a tachometer is installed at the center of the driven wheel, and the tachometer is fixed on the speed shaft.

[0010] Preferably, a transfer sleeve is provided between the speed meters, the transfer sleeve is engaged with the speed shaft, the transfer sleeve is connected to a fixing plate, and a positioning sleeve is provided on one side of the speed meter, the positioning sleeve is engaged with the speed shaft.

[0011] Beneficial effects: The new type detects the displacement of the traction wheel through the displacement detection component. When the traction wheel is offset, it will touch the contact rod, the contact rod slides in the rod sleeve and compresses the pressure spring, the pressure spring squeezes the pressure detector, and the pressure detector transmits the pressure value to the motor control box. When the pressure value exceeds the safety range, the motor control box controls the buzzer alarm and controls the traction motor to slowly brake the traction wheel to stop operation, which greatly improves the safety of the elevator; the new type detects the wear of the wire groove of the traction wheel through the wear detection component. When the traction wheel rotates, it will drive the driven wheel to rotate. When the traction wheel is not worn, the driven wheel and the traction wheel rotate synchronously. When the steel wire is seriously worn on the wire groove due to long-term operation, a gap will appear between the traction wheel and the driven wheel, resulting in a speed difference caused by a reduction in the speed of the driven wheel. The speed meter will detect this speed difference and transmit the data to the motor control box. When it exceeds the safety range, the motor control box starts the buzzer alarm to remind the maintenance personnel to perform maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the traction sheave assembly of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the offset detection component of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the wear detection component of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the transfer sleeve of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the driven wheel of the utility model;

[0019] Figure 7 This is a schematic diagram of the positioning sleeve structure of the utility model.

[0020] Legend:

[0021] 1. Wall; 2. Fixing rod; 3. Detection frame; 4. Traction wheel assembly; 5. Offset detection assembly; 6. Wear detection assembly; 31. Motor control box; 32. Buzzer; 41. Traction wheel; 42. Wire groove; 43. Main shaft; 44. Traction motor; 45. Main shaft sleeve; 421. Traction wire; 51. Contact rod; 52. Rod sleeve; 53. Pressure spring; 55. Pressure detector; 61. Driven wheel; 62. Speed ​​meter; 63. Speed ​​shaft; 64. Transfer sleeve; 641. Fixing plate; 621. Positioning sleeve. DETAILED DESCRIPTION

[0022] Below, in conjunction with the accompanying drawings and specific implementation methods, the utility model is further described:

[0023] Example 1

[0024] See also Figure 1 to Figure 2Embodiment 1 is described, an elevator traction wheel offset wear detection device comprises a wall 1 and a fixing rod 2 connected to the wall 1, the fixing rod 2 is connected to both sides of a detection frame 3, a traction wheel assembly 4 is provided on the detection frame 3, and both sides of the traction wheel assembly 4 are provided with offset detection assemblies 5, a motor control box 31 is provided on the top of the detection frame 3, a buzzer 32 is provided on the motor control box 31, the traction wheel assembly 4 comprises a traction wheel 41, the traction wheel 41 is provided with a plurality of steel wire grooves 42 ... The guide wheel 41 is fixed on the main shaft 43, one end of the main shaft 43 is connected to the traction motor 44, and the other end is engaged with the main shaft sleeve 45, the main shaft sleeve 45 is connected to the detection frame 3, the wire groove 42 is provided with a traction wire 421, the offset detection component 5 includes a contact rod 51, the contact rod 51 is provided on both sides of the traction wheel 41, the contact rod 51 is engaged with the rod sleeve 52, a pressure spring 53 is provided in the rod sleeve 52, one end of the pressure spring 53 is connected to the contact rod 51, and the other end is connected to the pressure detector 55.

[0025] In this embodiment, when the traction wheel 41 deviates, it will touch the contact rod 51, the contact rod 51 slides in the rod sleeve 52 and compresses the pressure spring 53, the pressure spring 53 squeezes the pressure detector 55, and the pressure detector 55 transmits the pressure value to the motor control box 31. When the pressure value exceeds the safety range, the motor control box 31 controls the buzzer alarm 32 and controls the traction motor 44 to brake the main shaft 43, thereby slowly braking the traction wheel 41 to stop the elevator, which greatly improves the safety of the elevator.

[0026] Example 2

[0027] See also Figure 3 to Figure 4 Description of Example 2. This embodiment further describes Example 1. A wear detection assembly 6 is provided below the traction wheel assembly 4. The wear detection assembly 6 includes a driven wheel 61. The driven wheel 61 is provided below the traction wheel 41. The driven wheel 61 fits the arc surface of the wire groove 42. A speed meter 62 is installed at the center of the driven wheel 61. The speed meter 62 is fixed on the speed shaft 63. A transfer sleeve 64 is provided between the speed meters 62. The transfer sleeve 64 is engaged with the speed shaft 63. The transfer sleeve 64 is connected to a fixing plate 641. A positioning sleeve 621 is provided on one side of the speed meter 62. The positioning sleeve 621 is engaged with the speed shaft 63.

[0028] In the present embodiment, the fitting design of the arc surface of the wire groove 42 and the driven wheel 61 allows the driven wheel 61 to rotate when the traction wheel 41 rotates. When the traction wheel 41 is not worn, the driven wheel 61 and the traction wheel 41 rotate synchronously. When the traction wire 421 seriously wears the wire groove 42 due to long-term operation, a gap will be generated between the traction wheel 41 and the driven wheel 61, causing the speed of the driven wheel 61 to decrease and produce a speed difference. The speed meter 62 will detect this speed difference and transmit the data to the motor control box 31. When the speed difference exceeds the safety range, the motor control box 31 starts the buzzer 32 to alarm and remind the maintenance personnel to perform maintenance.

[0029] In specific application, first, when the elevator is running, the traction motor 44 will drive the traction wheel 41 to rotate, and the traction wire 421 will maintain the normal operation of the elevator. When the traction wheel 41 deviates, it will touch the contact rod 51, and the contact rod 51 slides in the rod sleeve 52 and compresses the pressure spring 53. The pressure spring 53 squeezes the pressure detector 55, and the pressure detector 55 transmits the pressure value to the motor control box 31. When the pressure value exceeds the safety range, the motor control box 31 controls the buzzer alarm 32 and controls the traction motor 44 to brake the main shaft 43, thereby slowly braking the traction wheel 41 to stop the elevator. The arc surface of the wire groove 42 and The fitted design of the driven wheel 61 allows the driven wheel 61 to rotate when the traction wheel 41 rotates. When the traction wheel 41 is not worn, the driven wheel 61 and the traction wheel 41 rotate synchronously. When the traction wire 421 seriously wears the wire groove 42 due to long-term operation, a gap will appear between the traction wheel 41 and the driven wheel 61, causing the speed of the driven wheel 61 to decrease and produce a speed difference. The speed meter 62 will detect this speed difference and transmit the data to the motor control box 31. When the speed difference exceeds the safety range, the motor control box 31 starts the buzzer 32 to alarm and remind the maintenance personnel to perform maintenance. The detection device greatly improves the safety of the elevator operation.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top end", "bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An elevator traction sheave deflection wear detection device, comprising a wall (1) and a fixing rod (2) connected to the wall (1), characterized in that: The fixing rod (2) is connected to two sides of a detection frame (3); a traction wheel assembly (4) is provided on the detection frame (3); offset detection assemblies (5) are provided on two sides of the traction wheel assembly (4); and a wear detection assembly (6) is provided below the traction wheel assembly (4).

2. An elevator traction sheave deviation wear detection device according to claim 1, characterized in that: A motor control box (31) is provided on the top of the detection frame (3), a buzzer (32) is provided on the motor control box (31), and the traction wheel assembly (4) comprises a traction wheel (41), and the traction wheel (41) is provided with a plurality of steel wire grooves (42).

3. An elevator traction sheave deviation wear detection device according to claim 2, characterized in that: The traction wheel (41) is fixed on a main shaft (43), one end of the main shaft (43) is connected to a traction motor (44), and the other end is engaged with a main shaft sleeve (45), the main shaft sleeve (45) is connected to the detection frame (3), and the wire groove (42) is provided with a traction wire (421).

4. The elevator traction sheave deflection wear detection device according to claim 1, characterized in that The offset detection assembly (5) comprises a contact rod (51), wherein the contact rod (51) is arranged on both sides of the traction wheel (41), the contact rod (51) is engaged with a rod sleeve (52), a pressure spring (53) is arranged in the rod sleeve (52), one end of the pressure spring (53) is connected to the contact rod (51), and the other end is connected to a pressure detector (55).

5. The elevator traction sheave deviation wear detection device according to claim 1, characterized in that: The wear detection assembly (6) comprises a driven wheel (61), the driven wheel (61) being arranged below the traction wheel (41), the driven wheel (61) being in contact with the arc surface of the wire groove (42), a speed meter (62) being installed at the center of the driven wheel (61), and the speed meter (62) being fixed on a speed shaft (63).

6. An elevator traction sheave deviation wear detection device according to claim 5, characterized in that: A transfer shaft sleeve (64) is provided between the speed measuring devices (62), the transfer shaft sleeve (64) is engaged with the speed shaft (63), the transfer shaft sleeve (64) is connected to a fixing plate (641), and a positioning shaft sleeve (621) is provided on one side of the speed measuring device (62), the positioning shaft sleeve (621) is engaged with the speed shaft (63).

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