A type of suspended car roof wheel device
By designing a top-mounted car top wheel device, using double-layer car top wheel beams and shock-absorbing pads, the vibration and noise problems of machine-room-less elevators under heavy loads and high speeds are solved, ensuring the stability and safety of the elevator, while avoiding component interference, making it suitable for high-speed elevator applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGNENG ELEVATOR PARTS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional machine room-less elevators suffer from vibration and noise during operation, and the car bottom wheel design cannot guarantee the stability of the elevator, especially under heavy load and high speed conditions, it is prone to interference with the components on the car.
Design a top-mounted car top wheel device, including a double-layer car top wheel beam, a car top wheel, and a car upper beam. It is connected by shock-absorbing pads and reinforcing channel steel to avoid interference and reduce vibration transmission. A 2:1 traction ratio is adopted to adapt to high-speed elevators.
It achieves stability and safety under heavy loads and high speeds, avoids interference with components on the car, and saves production costs.
Smart Images
Figure CN224429901U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of elevator structure technology, and relates to a top-mounted car top wheel device, more specifically, to a top-mounted car top wheel structure with a shock absorption device for a machine room-less elevator. Background Technology
[0002] During elevator operation, the traction machine generates vibrations and noise. These vibrations and noises not only affect the passenger experience but may also be transmitted into the building, causing unnecessary disturbance. Traditional machine-room-less elevators often use bottom-wheel designs. Such elevators cannot effectively guarantee stability during operation. However, due to the characteristics of machine-room-less elevators, using top-wheel designs can cause interference with components such as the guide shoes on the car. This is especially true for some high-load, high-speed freight elevators.
[0003] To address this issue, a top-mounted car roof wheel device was designed to overcome the aforementioned problems. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a top-mounted car top wheel device that is simple and reasonable in structure, easy to install, stable in operation, has good shock absorption effect, and is safe and reliable.
[0005] This utility model is achieved through the following technical solution: a top-mounted car top wheel device, comprising a car top wheel device connected to a traction machine via a steel wire rope, characterized in that: the car top wheel device consists of a double-layer car top wheel beam, a car top wheel, and a car upper beam; a top wheel seat is symmetrically installed on both sides of the bottom of the double-layer car top wheel beam, and a car top wheel is installed on each top wheel seat; steel wire ropes pass through the outer sides of the two car top wheels in sequence, and the other two ends of the steel wire ropes are sleeved and installed on the traction machine; the car upper beam is located directly below the car top wheel, and the car upper beam is connected to the double-layer car top wheel beam via two vertically arranged car top wheel suspension plates on the left and right.
[0006] Preferably, the double-layer car top wheel beam consists of a car top wheel suspension beam and a car top wheel shock-absorbing beam arranged vertically. A gap is provided between the car top wheel suspension beam and the car top wheel shock-absorbing beam to place multiple shock-absorbing pads. The upper and lower ends of each shock-absorbing pad are connected to the car top wheel suspension beam and the car top wheel shock-absorbing beam, respectively. A top wheel seat is symmetrically installed on both sides of the bottom of the car top wheel shock-absorbing beam. The shock-absorbing pads isolate the vibration transmitted by the wire rope, thereby achieving the effect of car vibration reduction.
[0007] Preferably, each of the car top wheel suspension plates has its two ends connected to the sides of the car top wheel suspension beam and the car upper beam by bolts. Multiple vertical reinforcing channel steels are provided between two car top wheel suspension plates. The two ends of each reinforcing channel steel are connected to the sides of the car top wheel suspension beam and the car upper beam by bolts. The length of the reinforcing channel steel is the same as the length of the car top wheel suspension plate, and its width is less than the width of the car top wheel suspension plate.
[0008] Preferably, the reinforcing channel steel has a notch to allow the wire rope to pass through.
[0009] Preferably, the two adjacent reinforcing channel steels are equidistantly spaced, in conjunction with two car top wheel suspension plates, to ensure the stability of the connection between the double-layer car top wheel beam and the car upper beam.
[0010] The beneficial effects of this utility model are as follows:
[0011] 1) This utility model uses high-strength hanging plates and reinforced channel steel to firmly connect with the top frame of the car, ensuring the stability and safety of the entire system under heavy load and high-speed operation conditions;
[0012] 2) Combining the space constraints of machine room-less elevators, this utility model ingeniously designs the relative positions of each component, avoiding interference with other components of the car (such as guide shoes), while not affecting the overall aesthetics and ease of operation;
[0013] 3) This utility model adopts a 2:1 traction ratio, which is more suitable for high-speed elevators and saves production costs.
[0014] The top-mounted car top wheel device designed in this utility model has a car top wheel installed on a shock-absorbing beam, and a car top wheel suspension beam on top of it. They are connected by shock-absorbing pads to achieve the purpose of car vibration reduction. The double-layer car top wheel beam is then connected to the car upper beam through a suspension plate and reinforcing channel steel. This utility model is not only structurally reasonable, but also safer and more reliable, and is suitable for large-scale promotion. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0016] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0017] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0018] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1 As shown, a top-mounted car top wheel device includes a car top wheel device connected to a traction machine via a steel wire rope. The car top wheel device consists of a double-layer car top wheel beam 1, a car top wheel 2, and a car upper beam 3. A top wheel seat 4 is symmetrically installed on both sides of the bottom of the double-layer car top wheel beam 1. A car top wheel 2 is installed on each top wheel seat 4. Steel wire ropes 5 pass through the outer sides of the two car top wheels 2 in sequence. The other two ends of the steel wire ropes 5 are sleeved and installed on the traction machine (not shown in the figure). The car upper beam 3 is located directly below the car top wheel 2. The car upper beam 3 is connected to the double-layer car top wheel beam 1 via two vertically arranged car top wheel suspension plates 6.
[0019] The double-layer car top wheel beam 1 consists of a car top wheel suspension beam 7 and a car top wheel shock-absorbing beam 8 arranged vertically. A gap is provided between the car top wheel suspension beam 7 and the car top wheel shock-absorbing beam 8 to place multiple shock-absorbing pads 9. The upper and lower ends of each shock-absorbing pad 9 are connected to the car top wheel suspension beam 7 and the car top wheel shock-absorbing beam 8, respectively. A top wheel seat 4 is symmetrically installed on both sides of the bottom of the car top wheel shock-absorbing beam 8. The shock-absorbing pads 9 isolate the vibration transmitted by the steel wire rope 5, thereby achieving the effect of car shock absorption.
[0020] Each of the car top wheel suspension plates 6 is bolted to the sides of the car top wheel suspension beam 7 and the car upper beam 3. Multiple vertical reinforcing channel steels 10 are installed between two car top wheel suspension plates. Each reinforcing channel steel 10 is bolted to the sides of the car top wheel suspension beam 7 and the car upper beam 3. The length of the reinforcing channel steel 10 is the same as the length of the car top wheel suspension plate 6, but its width is less than the width of the car top wheel suspension plate 6. Notches are provided on the reinforcing channel steel 10 to allow the wire rope 5 to pass through. Adjacent reinforcing channel steels 10 are equidistant from each other, working in conjunction with the two car top wheel suspension plates 6 to ensure the stability of the connection between the double-layer car top wheel beam 1 and the car upper beam 3.
[0021] This invention relates to a top-mounted car top wheel device. A shock-absorbing pad and a suspension beam are installed on the car top wheel's shock-absorbing beam to form the car top wheel device. A suspension plate and reinforcing channel steel are used to fix the car top wheel device to the upper beam of the car. A circular hole is made in the suspension plate to avoid the car top wheel axle, allowing the car top wheel to move freely in the vertical direction. This, combined with the shock-absorbing pad, isolates the vibration transmitted by the wire rope, achieving a car vibration reduction effect. A notch is made in the reinforcing channel steel to allow the wire rope to pass through. Because the car top wheel device is raised in this way, interference between the car guide shoes and the wire rope and other components is avoided. This invention is not only structurally sound but also safer and more reliable, making it suitable for widespread application.
[0022] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A top-mounted car top wheel device, comprising a car top wheel device connected to a traction machine via a steel wire rope, characterized in that: The car top wheel device consists of a double-layer car top wheel beam (1), a car top wheel (2), and a car upper beam (3). A top wheel seat (4) is symmetrically installed on both sides of the bottom of the double-layer car top wheel beam (1). A car top wheel (2) is installed on each top wheel seat (4). A steel wire rope (5) passes through the outer side of the two car top wheels (2) in sequence. The other two ends of the steel wire rope (5) are sleeved and installed on the traction machine. The car upper beam (3) is directly below the car top wheel (2). The car upper beam (3) and the double-layer car top wheel beam (1) are connected by two vertically arranged car top wheel hanging plates (6) on the left and right.
2. The top-mounted car roof wheel device according to claim 1, characterized in that: The double-layer car top wheel beam (1) consists of a car top wheel suspension beam (7) and a car top wheel shock absorber beam (8) arranged vertically. A gap is provided between the car top wheel suspension beam (7) and the car top wheel shock absorber beam (8) for placing multiple shock absorber pads (9). The upper and lower ends of each shock absorber pad (9) are connected to the car top wheel suspension beam (7) and the car top wheel shock absorber beam (8) respectively. A top wheel seat (4) is symmetrically installed on both sides of the bottom of the car top wheel shock absorber beam (8). The shock absorber pads (9) separate the vibration transmitted by the wire rope (5) and achieve the car shock absorption effect.
3. The top-mounted car roof wheel device according to claim 1 or 2, characterized in that: Each of the car top wheel suspension plates (6) is connected to the car top wheel suspension beam (7) and the side of the car upper beam (3) by bolts at both ends. Multiple vertical reinforcing channel steels (10) are provided between the two car top wheel suspension plates. Each reinforcing channel steel (10) is connected to the car top wheel suspension beam (7) and the side of the car upper beam (3) by bolts at both ends. The length of the reinforcing channel steel (10) is the same as the length of the car top wheel suspension plate (6), and the width is less than the width of the car top wheel suspension plate (6).
4. The top-mounted car roof wheel device according to claim 3, characterized in that: The reinforcing channel steel (10) has a notch to ensure that the wire rope (5) can pass through it.
5. The top-mounted car roof wheel device according to claim 4, characterized in that: The two adjacent reinforcing channel steels (10) are equidistantly arranged and cooperate with the two car top wheel hanging plates (6) to ensure the stability of the connection between the double-layer car top wheel beam (1) and the car upper beam (3).