WO2019218284A1

WO2019218284A1 - Damping device for elevator car

Info

Publication number: WO2019218284A1
Application number: PCT/CN2018/087170
Authority: WO
Inventors: 曹中; 崔恒东; 陈金富
Original assignee: 南通中尧特雷卡电梯产品有限公司
Priority date: 2018-05-16
Filing date: 2018-05-16
Publication date: 2019-11-21

Abstract

A damping device for an elevator car, comprising a damping box (1) and a fixing frame (2) located above the damping box (1), the fixing frame (2) being fixedly connected to the bottom of the elevator car; the damping box (1) comprises a roller (12), an inclined wedge (13), an elastic component (14) and a fixing plate (15); the upper end of the roller (12) is connected, by means of a fixing shaft (11), to the bottom of the fixing frame (2); the roller (12) contacts the inclined surface of the inclined wedge (13); one end of the elastic component (14) is connected to a vertical plane of the inclined wedge (13), and the other end is connected to the fixing plate (15); the fixing plate (15) is fixedly connected to upper and lower portions of the damping box (1). By means of said damping device for an elevator, vertical force is converted into horizontal force by means of the roller (12) and the inclined wedge (13) inside the damping box (1), and then the horizontal force is converted into elastic potential energy under the action of the elastic component (14). By means of the conversion action of the inclined wedge (13), the transmission time of the force to be subjected by the car is extended, and the transmission distance of the force is increased, so that the force to be subjected by the car changes more slowly, the damping effect is good, and the comfort degree is high.

Description

Elevator car damping device

Technical field

The invention relates to the technical field of elevator equipment, and in particular to an elevator car damping device.

Background technique

During the operation of the elevator, it is necessary to follow the call for ascending, descending, parking, and even in some emergency situations, an emergency stop is required. The faster the elevator runs, the greater the amplitude of the vibration during running and leveling, and the easier it is to affect the ride comfort of the passengers in the car. Therefore, it is extremely important to arrange the damping device reasonably in the elevator structure. In order to ensure the shock absorption effect of the elevator, many shock absorbing devices in the prior art mostly adopt rubber damping, that is, the rubber and the steel plate are bonded together, the service life is short, the seismic resistance is poor, and it is easy to feel strong vibration. . Or it is complicated to use shock absorbers such as motor drives, which is inconvenient to install and will cause inconvenience when parts are replaced. Therefore, it is necessary to design a new shock absorbing device that not only provides a shock absorbing effect that satisfies the requirements, but also has a simple structure and is easy to install.

Chinese Patent No. 201110245999.2 discloses a damper device for an elevator car top wheel, comprising an upper beam assembly, a car top wheel assembly, and a mounting fixing plate. The mounting fixing plate and the upper beam assembly are fixed by a bolt assembly, and the car top wheel assembly passes through the U. The bolt is fixed on the mounting fixing plate, and a damping pad is disposed between the mounting fixing plate and the upper beam assembly, and a U-bolt assembly is installed at the car top wheel assembly. The number of cushions of the invention can vary depending on the load, and the required shock absorption coefficient can be achieved by adjusting the number of cushions. However, the prior art achieves the adjustment of the degree of comfort by adjusting the number of the cushions, resulting in inconvenient operation and poor damping effect, which is difficult to meet the needs of high-rise buildings.

Chinese Patent No. 201510258441.6 discloses an elevator damper device comprising a damper box installed at the bottom of the elevator car and a fixing frame above the damper box, the damper box being fixed at the bottom of the elevator car through a fixing bracket above it; The shock box includes a box body, a clamping mechanism on the front side of the box body, and an actuator and a driving mechanism in the box body. The clamping mechanism can be driven by the driving mechanism and the actuator to clamp the rail, thereby locking the bottom of the car Close to the guide rail; the actuator uses an eccentric clamping mechanism. The prior art reduces the sway of the car by clamping the guide rail by the clamping mechanism on the front side of the damper box. However, in this technique, the eccentric wheel and the meshing between the large and small gears are used to transmit the drive, which causes slow damping action. And the feeling of frustration during the shock absorption process affects the comfort of the elevator.

It can be seen that designing an elevator damping device with simple structure, convenient installation, convenient operation, low maintenance cost and good shock absorption effect has become a technical problem to be solved.

Summary of the invention

In view of the above technical problems, the present invention provides an elevator car damping device. The invention adopts mechanical shock absorption, has simple structure, convenient installation, low maintenance cost and good shock absorption effect.

The technical solution of the present invention is: an elevator car damper device, comprising: a damper box and a fixing frame located above the damper box, the fixing frame being fixedly connected with the bottom of the elevator car; The box includes a roller, a wedge, an elastic member, and a fixing plate; the upper end of the roller is connected to the bottom of the fixing frame through a fixing shaft; the roller is in contact with the inclined surface of the wedge; and one end of the elastic member is connected with the vertical surface of the wedge The other end is connected to the fixed plate; the fixed plate is fixedly connected to the upper and lower portions of the shock absorbing box.

further,

As an optional embodiment of the present invention, the elastic member is a spring and is arranged on two sides of the fixing plate. As an optional embodiment of the present invention, the elastic portion is elastic rubber and is arranged to be fixed. Both sides of the plate; the elastic rubber is a porous structure.

Further, the bottom surface of the wedge has a movable supporting device. As an optional implementation manner of the present invention, the movable supporting device is a rolling wheel, and the rolling wheel is fixedly connected to a bottom surface of the inclined wedge. And having a roller slot at the bottom of the shock wheel of the shock box; as another optional embodiment of the present invention, the movable supporting device is a slider, and the slider is fixedly connected to the bottom surface of the wedge, and There is a slider guide at the bottom of the shock box.

Further, the angle between the slope of the wedge and the horizontal plane is 30-60 degrees, preferably 45 degrees.

Further, the outer side of the elastic component further has a weighing limit device, which plays a limiting role when the elevator is overweight, and can play a buffering role when the elevator speed is too fast.

Further, the roller, the wedge and the elastic member are arranged on both sides of the fixing plate, and two on the left and right sides. The fixing shafts of the rollers are respectively located at four corners of the bottom of the fixing frame, and the rollers can roll along the inclined surface of the wedge.

Compared with the prior art, the beneficial effects of the present invention are:

(1) The elevator car damper device of the present invention is a damper box installed at the bottom of the car. When the elevator stops the car, the vertical direction force is converted into a horizontal direction by the roller and the wedge inside the damper box. The force, through the action of the elastic member, converts the horizontal force into the elastic potential energy. In the technical solution of the invention, the transmission time of the car is prolonged by the conversion of the wedge, the force transmission distance is increased, and the action of the elastic component is added, so that the force of the car changes more slowly, and the force is reduced. The car is shaken, the shock absorption effect is good, and the comfort is high.

(2) The elastic member of the present invention is made of an elastic rubber with a hole, so that the elastic cushioning effect is better, and the shock absorbing effect and comfort are further increased.

(3) The wedge of the present invention adopts a rolling wheel or a slider and horizontally moves on a specific track, which further increases the stability of the elevator during shock absorption and improves comfort.

(4) The angle between the inclined surface of the wedge of the present invention and the horizontal plane can be adjusted according to the bearing capacity in the car, and the angle of the angle of the elevator is adjusted to adjust the time of the shock absorption of the elevator, so that the shock transmission process is more stable.

(5) The invention has a weighing limit device, which plays a limiting role when the elevator is overweight. When the elevator speed is too fast, it plays a limit and buffer function, prevents the shock absorption process from being too fast, and improves the safety factor of the elevator.

(6) The elevator car damping device of the present invention adopts a mechanical structure, is safe and reliable, has a simple structure, is convenient to install, has low maintenance cost, and has a long service life.

DRAWINGS

Figure 1 is a schematic view of the elevator car damping device of the present invention;

2 is a schematic structural view of a shock absorbing box in an elevator car damping device of the present invention;

Figure 3 is a schematic view showing the structure of the shock absorbing box of the present invention when the elastic member is a spring;

Figure 4 is a schematic view showing the structure of the elastic member of the shock absorbing box in the present invention;

Figure 5 is a schematic view showing the structure of the wedge bottom of the shock absorbing box in the present invention;

Figure 6 is a schematic view showing the structure of the wedge bottom of the shock absorbing box in the present invention;

Figure 1 is a reference to the description of the shock box 1, the fixed frame 2;

Figure 2 is a description of the reference: the shock box 1, the roller 12, the wedge 13, the elastic member 14, the fixed plate 15, the movable supporting device 16, the weighing limit device 17;

Figure 3, Figure 4 shows the description of the spring 14a, elastic rubber 14b, hole 18;

5 and 6 illustrate the wedge 13, the rolling wheel 16a, the slider 16b, the roller groove 19, and the slider guide 110.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 5, an elevator car damping device includes a vibration absorbing box 1 and a fixing frame 2 located above the damper box, the fixing frame 2 and the bottom of the elevator car. The fixed connection; wherein the shock absorbing box 1 comprises a roller 12, a wedge 13 , an elastic member 14 , and a fixing plate 15 ; the upper end of the roller 12 is connected to the bottom of the fixing frame 2 via a fixing shaft 11; the roller 12 is in contact with the inclined surface of the wedge 13 One end of the elastic member 14 is connected to the vertical surface of the wedge 13 and the other end is connected to the fixing plate 15; the fixing plate 15 is fixedly connected to the upper and lower portions of the damper box 1.

Further, the elastic members 14 are springs which are arranged on both sides of the fixing plate 15. The bottom surface of the wedge 13 further has a movable supporting device 16, and the movable supporting device 16 is a rolling wheel 16a. The rolling wheel 16a is fixedly connected to the bottom surface of the wedge 13 and has a roller groove 19 at the bottom of the shock box rolling wheel 1. The rolling wheel 16a moves horizontally along the roller groove 19. The roller 12, the wedge 13 and the elastic member 14 are arranged on both sides of the fixed plate 15, two on each side.

According to the technical solution of the present invention, when the elevator is stopped, the vertical force is converted into a horizontal force by the roller and the wedge inside the shock box, and the horizontal force is converted into the elastic potential energy by the action of the elastic member. In the technical solution of the invention, the transmission time of the car is prolonged by the conversion of the wedge, the force transmission distance is increased, and the action of the elastic component is added, so that the force of the car changes more slowly, and the force is reduced. The car is shaken, the shock absorption effect is good, and the comfort is high. In addition, the angle between the inclined surface of the wedge and the horizontal plane can be adjusted according to the bearing capacity in the car. By adjusting the angle of the angle, the time of the shock absorption of the elevator is adjusted, so that the shock transmission process is more stable.

Example 2

Referring to Figure 1, Figure 2, Figure 4, Figure 6, an elevator car damping device includes a shock box 1 and a fixed frame 2 above the shock box, the fixed frame 2 is fixedly connected to the bottom of the elevator car The shock absorbing box 1 includes a roller 12, a wedge 13 , an elastic member 14 , and a fixing plate 15 ; the upper end of the roller 12 is connected to the bottom of the fixing frame 2 through the fixing shaft 11; the roller 12 is in contact with the inclined surface of the wedge 13; One end of the member 14 is connected to the vertical surface of the wedge 13 and the other end is connected to the fixing plate 15; the fixing plate 15 is fixedly connected to the upper and lower portions of the damper box 1.

Further, the elastic members 14 are elastic rubbers which are arranged on both sides of the fixing plate 15, and the elastic rubber has a porous 18 structure. The bottom surface of the wedge 13 further has a movable supporting device 16, and the movable supporting device rolling wheel 16 is a slider 16b. The slider 16b is fixedly connected to the bottom surface of the wedge 13 and has a slider rail 110 at the bottom of the damping box 1. The slider 16b moves horizontally along the slider rail 110. The roller 12, the wedge 13 and the elastic member 14 are arranged on both sides of the fixed plate 15, two on each side.

The slope of the inclined wedge 13 and the horizontal plane are 30-60 degrees, specifically 30 degrees, 45 degrees, 60 degrees, and the like.

The elastic member of the present invention adopts an elastic rubber with a hole to make the elastic effect better, further increasing the shock absorbing effect and comfort.

Example 3

Referring to Figure 1, Figure 2, Figure 3, Figure 5, an elevator car damping device includes a damping box 1 and a fixing frame 2 above the damping box, the fixing frame 2 is fixedly connected with the bottom of the elevator car The shock absorbing box 1 includes a roller 12, a wedge 13 , an elastic member 14 , and a fixing plate 15 ; the upper end of the roller 12 is connected to the bottom of the fixing frame 2 through the fixing shaft 11; the end of the roller 12 is in contact with the inclined surface of the wedge 13; One end of the elastic member 14 is connected to the vertical surface of the wedge 13 and the other end is connected to the fixing plate 15; the fixing plate 15 is fixedly connected to the upper and lower portions of the damper box 1.

The elastic members 14 are springs and are arranged on both sides of the fixing plate 15. The outer side of the elastic member 14 also has a weighing limit device 17 having a weighing limit function. When the elevator is overweight, it plays a limiting role. When the elevator speed is too fast, it plays a limit and buffer function, prevents the shock absorption process from being too fast, and improves the safety factor of the elevator.

The wedge of the invention adopts a rolling wheel or a slider and moves horizontally on a specific track, which further increases the stability of the elevator during shock absorption and improves the comfort.

The elevator damping device of the invention adopts a mechanical structure, is safe and reliable, has a simple structure, is convenient to install, has low maintenance cost, and has a long service life.

The above description shows and describes a preferred embodiment of the present invention. As described above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be construed as being Combinations, modifications, and environments are possible, and can be modified by the teachings of the above teachings or related art within the scope of the inventive concept described herein. All changes and modifications made by those skilled in the art are intended to be within the scope of the appended claims.

Claims

An elevator car damper device, comprising: a damper box (1) and a fixing frame (2) located above the damper box, the fixing frame (2) being fixedly connected with the bottom of the elevator car; The shock absorbing box (1) comprises a roller (12), a wedge (13), an elastic member (14), a fixing plate (15); the upper end of the roller (12) passes through the fixed shaft (11) and the fixing frame (2) a bottom connection; the roller (12) is in contact with the inclined surface of the wedge (13); one end of the elastic member (14) is connected to the vertical surface of the wedge (13), and the other end is connected to the fixing plate (15); The fixing plate (15) is fixedly connected to the upper and lower portions of the damper box (1).
The elevator car damping device according to claim 1, wherein the elastic members (14) are springs and are arranged on both sides of the fixing plate (15).
The elevator car damping device according to claim 1, wherein the elastic members (14) are elastic rubber and are arranged on both sides of the fixing plate (15).
The elevator car damping device according to claim 3, wherein the elastic rubber is a porous structure.
The elevator car damping device according to any of claims 1-4, characterized in that the bottom surface of the wedge (13) further has a movable supporting device (16).
The elevator car damping device according to claim 5, wherein said movable supporting device (16) is a rolling wheel (16a), said rolling wheel (16a) and said wedge (13) The bottom surface is fixedly connected and has a roller groove (19) at the bottom of the shock absorbing box (1).
The elevator car damping device according to claim 5, wherein said movable supporting device (16) is a slider (16b), said slider (16b) and said wedge (13) The bottom surface is fixedly connected and has a slider rail (110) at the bottom of the damper box (1).
The elevator car damping device according to claim 5, characterized in that the angle between the slope of the wedge (13) and the horizontal plane is 30-60 degrees.
The elevator car damping device according to claim 8, characterized in that the outer side of the elastic member (14) further has a weighing limit device (17).
The elevator car damping device according to claim 1, wherein the roller (12), the wedge (13) and the elastic member (14) are arranged on both sides of the fixing plate (15), and the left and right sides are respectively Two.