Elevator car driving device

Abstract

The utility model discloses an elevator car driving device which comprises a motor and a speed reducer, the motor is in transmission connection with one side of the speed reducer, the elevator car driving device further comprises a traction wheel, and the other side of the speed reducer is in transmission connection with the traction wheel. The traction wheel comprises a traction wheel body, and the traction wheel body is provided with an outer ring, a radial wheel body and an inner ring; the radial wheel body is provided with a plurality of fan blades which are adjacent to one another and integrally formed, and a protruding edge is arranged between every two adjacent fan blades and distributed in the radial direction of the traction wheel. The outer ring is provided with an outer ring end face, the fan blades are provided with fan blade end faces, the protruding edges are provided with protruding edge end faces, and the axial distance between the outer ring end face and the fan blade end faces is larger than that between the outer ring end face and the protruding edge end faces. The elevator car driving device has the advantages that airflow generated in the fast rotation process of the traction wheel is away from the traction wheel in time, and potential safety hazards such as resonance caused by the fact that the airflow continuously impacts the traction wheel are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of elevator accessories, specifically relating to an elevator car drive device. Background Technology

[0002] The utility model patent with publication number CN207226775U and subject name "Elevator Car Door Drive Assembly" has IPC classification number B66B13 / 08. Its technical solution discloses "an elevator car door drive assembly, including a crossbeam, a guide rail, a left car door assembly, a right car door assembly, and a drive device. The guide rail is fixed on the crossbeam. The drive device includes a first traction sheave, a second traction sheave, and a drive belt. The first traction sheave and the second traction sheave are both mounted on the crossbeam. The drive belt is wound around the first traction sheave and the second traction sheave. The left car door assembly includes a left connecting piece, a left roller, and a left car door mounting plate. One end of the left connecting piece is fixed on the drive belt, and the other end is fixed on the left car door mounting plate."

[0003] Therefore, the above utility model patents have disclosed one technical solution for elevator car drive devices. However, the technical solutions disclosed in the above utility model patents focus on setting elastic components to reduce the impact between car door panels and between car door panels and the elevator outer frame, but do not further solve the problem of how to ensure that the airflow generated by the traction sheave during rapid rotation is promptly moved away from the traction sheave, which requires further improvement. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing an elevator car drive device.

[0005] The present invention adopts the following technical solution: an elevator car drive device, including a motor and a reducer, wherein the motor is connected to one side of the reducer through transmission; the elevator car drive device also includes a traction sheave, wherein the other side of the reducer is connected to the traction sheave through transmission.

[0006] The traction sheave includes a traction sheave body, which has an outer ring, radial sheave bodies, and an inner ring.

[0007] The radial wheel body has multiple fan blades that are adjacent to each other and integrally formed. There are protruding ridges between two adjacent fan blades, and the protruding ridges are distributed along the radial direction of the traction wheel.

[0008] The outer ring has an outer ring end face, the fan blade has a fan blade end face, and the convex ridge has a convex ridge end face. The axial distance between the outer ring end face and the fan blade end face is greater than the axial distance between the outer ring end face and the convex ridge end face.

[0009] As a preferred technical solution to the above technical solutions, the fan blade has a fan blade hole.

[0010] As a preferred technical solution to the above technical solutions, the outer ring, the radial wheel body and the inner ring are coaxially distributed and integrally formed, with the radial wheel body located between the outer ring and the inner ring.

[0011] As a preferred technical solution to the above technical solutions, the traction sheave also includes a center disc, which is coaxially distributed with the traction sheave body, fixedly connected to the traction sheave body, and located on the side of the traction sheave body away from the reducer.

[0012] As a preferred technical solution to the above technical solutions, the traction sheave also includes three positioning pins, which penetrate the central disc.

[0013] As a preferred embodiment of the above technical solutions, the electric motor includes a motor shaft, the reducer includes a reducer cover, a worm gear transmission mechanism, and a worm and a worm shaft built into the reducer cover. The worm gear transmission mechanism is partially built into the reducer cover. The motor shaft is driven by the worm shaft, the worm shaft is driven by the worm gear, the worm shaft is driven by the worm gear, the worm gear is driven by the worm gear, and the worm gear is driven by the worm gear transmission mechanism. The worm gear transmission mechanism is fixedly connected to the central disk by a positioning pin.

[0014] The elevator car drive device disclosed in this utility model has the advantage that the airflow generated by the traction sheave during rapid rotation is promptly moved away from the traction sheave, avoiding the safety hazards such as resonance caused by the continuous impact of the airflow on the traction sheave. Attached Figure Description

[0015] Figure 1 This is a perspective view of this application.

[0016] Figure 2 This is a three-dimensional view from another perspective of this application.

[0017] Figure 3 This is the main view of this application.

[0018] Figure 4 This is a top view of this application.

[0019] Figure 5 This is a top view with the gearbox cover hidden.

[0020] Figure 6 It is a 3D view with the gearbox cover hidden.

[0021] Figure 7 This is a perspective view of the traction sheave of this application.

[0022] Figure 8 This is a perspective view of the traction wheel of this application from another angle.

[0023] The reference numerals in the attached drawings include: 100-motor; 110-motor shaft; 200-reducer; 210-reducer cover; 220-turbine; 230-worm gear; 240-turbine transmission mechanism; 300-traction sheave; 310-center disc; 311-locating pin; 320-traction sheave body; 330-outer ring; 331-outer ring end face; 340-radial wheel body; 341-fan blade; 342-protruding ridge; 343-fan blade hole; 344-protruding ridge end face; 345-fan blade end face; 350-inner ring. Detailed Implementation

[0024] This utility model discloses an elevator car drive device. The following description, in conjunction with a preferred embodiment (Embodiment 1), refers to the accompanying drawings. Figures 1 to 8 The specific embodiments of this utility model will be further described below.

[0025] See attached diagram. Figures 1 to 8 , Figures 1 to 4 The elevator car drive mechanism is shown from different perspectives. Figure 5 and Figure 6 The following diagrams show some parts of the elevator car drive mechanism. Figure 7 and Figure 8 The traction wheels are shown separately.

[0026] Example 1.

[0027] Preferably, the elevator car drive device includes a motor 100 and a reducer 200. The motor 100 is connected to one side of the reducer 200. The elevator car drive device also includes a traction sheave 300. The other side of the reducer 300 is connected to the traction sheave 300. This allows the motor 100 to drive the traction sheave 300 to rotate through the reducer 200, thereby driving the wire rope (not shown in the figure) to rise and fall (specifically, the two ends of the wire rope are connected to the car and the counterweight respectively. By utilizing the friction between the traction sheave 300 and the wire rope, the car and the counterweight move in opposite directions to achieve rising and falling).

[0028] The traction sheave 300 includes a traction sheave body 320, which has an outer ring 330, a radial sheave body 340, and an inner ring 350.

[0029] The radial wheel body 340 is provided with a plurality of fan blades 341 that are adjacent to each other and integrally formed. A protruding rib 342 is provided between two adjacent fan blades 341, and the protruding rib 342 is distributed along the radial direction of the traction wheel 300.

[0030] The outer ring 330 has an outer ring end face 331, the fan blade 341 has a fan blade end face 345, and the convex rib 342 has a convex rib end face 344. The axial distance between the outer ring end face 331 and the fan blade end face 345 is greater than the axial distance between the outer ring end face 331 and the convex rib end face 344. This ensures that the convex rib 342 does not protrude outward from the outer ring 330, and that the fan blade 341 and the outer ring 330 form a concave space. The convex rib 342 occupies part of the concave space, thereby ensuring that the airflow generated by the traction wheel 300 during rapid rotation moves away from the traction wheel 300 in a timely manner, avoiding the continuous impact of airflow on the traction wheel 300 and the resulting resonance and other safety hazards.

[0031] The fan blade 341 has a fan blade hole 343 to better guide the airflow to pass through quickly and away from the traction sheave 300.

[0032] The outer ring 330, the radial wheel body 340, and the inner ring 350 are coaxially distributed and integrally formed, with the radial wheel body 340 located between the outer ring 330 and the inner ring 350.

[0033] The traction sheave 300 also includes a center disk 310, which is coaxially distributed with the traction sheave body 320. The center disk 310 is fixedly connected to the traction sheave body 320 and is located on the side of the traction sheave body 320 away from the reducer 200.

[0034] The traction sheave 300 also includes three positioning pins 311, with the positioning pins 331 penetrating the central disc 310.

[0035] The motor 100 includes a motor shaft 110, and the reducer 200 includes a reducer cover 210, a worm gear transmission mechanism 240, and a worm 220 and a worm shaft 230 built into the reducer cover 210. The worm gear transmission mechanism 240 is partially built into the reducer cover 210. The motor shaft 110 is driven to the worm shaft 230, the worm shaft 230 is driven to the worm shaft 220, the worm shaft 220 is driven to the worm gear transmission mechanism 240, and the worm gear transmission mechanism 240 is fixedly connected to the center plate 310 by a positioning pin 331.

[0036] It is worth mentioning that the specific structure and other technical features of the turbine transmission mechanism 240 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0037] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An elevator car drive device, comprising a motor and a reducer, wherein the motor is connected to one side of the reducer in a transmission manner, characterized in that, The elevator car drive unit also includes a traction sheave, and the other side of the reducer is connected to the traction sheave drive. The traction sheave includes a traction sheave body, which has an outer ring, radial sheave bodies, and an inner ring. The radial wheel body has multiple fan blades that are adjacent to each other and integrally formed. There are protruding ridges between two adjacent fan blades, and the protruding ridges are distributed along the radial direction of the traction wheel. The outer ring has an outer ring end face, the fan blade has a fan blade end face, and the convex ridge has a convex ridge end face. The axial distance between the outer ring end face and the fan blade end face is greater than the axial distance between the outer ring end face and the convex ridge end face.

2. The elevator car drive device according to claim 1, characterized in that, The fan blades have fan blade holes.

3. The elevator car drive device according to claim 1, characterized in that, The outer ring, radial wheel body, and inner ring are coaxially distributed and integrally formed, with the radial wheel body located between the outer ring and the inner ring.

4. The elevator car drive device according to claim 1, characterized in that, The traction sheave also includes a center disc, which is coaxially distributed with the traction sheave body. The center disc is fixedly connected to the traction sheave body and is located on the side of the traction sheave body away from the reducer.

5. The elevator car drive device according to claim 1, characterized in that, The traction sheave also includes three positioning pins, which pass through the central disc.

6. The elevator car drive device according to claim 5, characterized in that, The electric motor includes a motor shaft, and the reducer includes a reducer cover, a worm gear transmission mechanism, and a worm and a worm shaft built into the reducer cover. The worm gear transmission mechanism is partially built into the reducer cover. The motor shaft is driven by the worm shaft, the worm shaft is driven by the worm gear, the worm shaft is driven by the worm gear, and the worm gear is driven by the worm gear transmission mechanism. The worm gear transmission mechanism is fixedly connected to the center plate by a positioning pin.

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