Safety device for balanced high-speed operation of lift car

Abstract

The utility model relates to the field of safety of elevator equipment, in particular to a safety device for balanced high-speed operation of a lift car, which comprises a balance upper beam, a balance middle beam is arranged at the bottom of the balance upper beam, a balance lower beam is arranged on one side, far away from the balance upper beam, of the balance middle beam, and a damping device is arranged on the balance lower beam. According to the utility model, the lightweight ribs, the buffer devices and the balance blocks are arranged, the high-strength lightweight materials and the optimized frame layout are adopted, and the transverse cross supports and the damping shock absorption nodes are arranged, so that dynamic vibration caused by high-speed operation is effectively inhibited, secondly, the plurality of lightweight ribs can reduce invalid load, and in addition, the service life of the buffer device is prolonged. The buffer device can achieve kinetic energy recovery, elevator load changes are compensated in real time by adopting a self-adaptive balance weight adjusting system, small acceleration fluctuation changes are ensured, the technical bottlenecks that a high-speed elevator is large in inertia impact and high in energy consumption are solved, and the comprehensive energy efficiency of the elevator can achieve the better effect.

Description

Technical Field

[0001] This utility model relates to the field of elevator equipment safety, and in particular to a safety device for balancing high-speed operation of the elevator car. Background Technology

[0002] The elevator balancing device mainly consists of a steel frame and counterweights, and achieves the function of balancing the elevator load through guide rails.

[0003] However, in high-speed elevators (operating speeds ≥ 4 m / s), the mechanical friction between the existing balancing device and the guide rail intensifies during operation, leading to a significant increase in vibration and noise, which affects ride comfort. Secondly, the traditional balancing device uses a rigid connection structure, which is difficult to effectively absorb the impact load generated during high-speed start-up or emergency braking, easily causing fatigue damage to components. In addition, ordinary steel is heavy, leading to an increase in the overall energy consumption of the elevator system. At the same time, it is prone to deformation or breakage under long-term high-frequency operation. Utility Model Content

[0004] The purpose of this invention is to provide a safety device for balancing high-speed operation of a car, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a balancing upper beam, a balancing middle beam at the bottom of the balancing upper beam, a balancing lower beam on the side of the balancing middle beam away from the balancing upper beam, and a shock-absorbing device on the balancing lower beam.

[0006] As a preferred embodiment of this utility model, the shock absorption device includes a compensating steel wire rope disposed on a lower balance beam. A pair of limiting screws are symmetrically disposed on the lower balance beams on both sides of the compensating steel wire rope. A shock-absorbing and buffering damping material is disposed on the lower balance beam between the two limiting screws. A compensating pressure plate is disposed on the shock-absorbing and buffering damping material. The compensating pressure plate is located at the bottom of the compensating steel wire rope.

[0007] As a preferred embodiment of this invention, a pair of balance adjustment blocks are provided on both sides of the bottom of the lower balance beam.

[0008] As a preferred embodiment of this utility model, a pair of guide shoes are symmetrically arranged on both the upper and lower balance beams, a pair of lightweight ribs are arranged between the upper balance beam and the middle balance beam, a pair of straight beams are arranged between the upper balance beam and the middle balance beam, the two lightweight ribs are located between the straight beams, an anti-detachment device is provided on the straight beams, two rows of balance blocks are arranged on the lower balance beam, and several pressure strips are arranged between the middle balance beam and the lower balance beam.

[0009] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0010] 1. This utility model, by setting lightweight ribs, buffer devices, and balance blocks, adopts high-strength lightweight materials and an optimized frame layout. The main structure is made of low-alloy steel or aerospace aluminum alloy, while the frame adopts a modular split design. By setting lateral cross supports and damping shock absorption nodes, it effectively suppresses dynamic vibrations caused by high-speed operation, thereby enhancing safety. Secondly, multiple lightweight ribs can reduce ineffective loads and lower energy consumption. In addition, the buffer device can realize kinetic energy recovery and improve operational stability. By adopting an adaptive counterweight adjustment system, it compensates for changes in elevator load in real time, ensuring small acceleration fluctuations. This solves the technical bottleneck of high-speed elevators having large inertial impacts and high energy consumption, resulting in better overall energy efficiency for the elevator.

[0011] 2. By setting guide shoes, the combination of two pairs of guide shoes on the upper and lower beams can adapt to different elevator loads and speeds of ≥4m / s. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the shock absorption device of this utility model.

[0014] Reference numerals: 1. Guide shoe, 2. Balance upper beam, 3. Balance middle beam, 4. Pressure strip, 5. Balance block, 6. Anti-detachment device, 7. Shock absorption device, 7. Compensating pressure plate, 701. Shock absorption and buffering material, 702. Balance adjustment block, 703. Compensating wire rope, 704. Limiting screw, 705. Balance lower beam, 8. Lightweight rib, 9. Straight beam, 10. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0016] like Figures 1-2As shown, this utility model proposes a safety device for balancing high-speed operation of a car. It includes a balancing upper beam 2, a balancing middle beam 3 at the bottom of the balancing upper beam 2, and a balancing lower beam 8 on the side of the balancing middle beam 3 away from the balancing upper beam 2. The balancing upper beam 2, the balancing middle beam 3, and the balancing lower beam 8 constitute the frame of the entire balancing device. The balancing upper beam 2 provides the installation foundation for the guide shoe 1. The balancing middle beam 3 separates the balancing upper beam 2 and the balancing lower beam 8, mainly to avoid the traction steel wire rope and prevent interference. The balancing lower beam 8 provides the installation foundation for the guide shoe 1 and the shock absorption device 7. The shock absorption device 7 is installed on the balancing lower beam 8.

[0017] The vibration damping device 7 includes a compensating steel wire rope 704 mounted on the lower balance beam 8. The compensating steel wire rope 704 balances the traction imbalance caused by changes in the weight of the steel wire rope during elevator operation. A pair of limit screws 705 are symmetrically mounted on the lower balance beam 8 on both sides of the compensating steel wire rope 704. The limit screws 705 restrict the left and right swing of the compensating steel wire rope 704 to ensure reliable fixation of the device. A vibration damping material 702 is mounted on the lower balance beam 8 between the two limit screws 705. The vibration damping material 702 absorbs and isolates vibrations, reducing noise and vibration during elevator operation. A compensating pressure plate 701 is mounted on the vibration damping material 702. The compensating pressure plate 701 is located at the bottom of the compensating steel wire rope 704 and presses down on the vibration damping material 702 to ensure that it performs its vibration damping function.

[0018] A pair of balance adjustment blocks 703 are provided on both sides of the bottom of the lower balance beam 8. The balance adjustment blocks 703 can be used to adjust the balance of the elevator. When the traction steel wire rope stretches, they can be removed to ensure the buffer distance.

[0019] A pair of guide shoes 1 are symmetrically arranged on both the upper balance beam 2 and the lower balance beam 8. The guide shoes 1 are used to guide the elevator car up and down in the shaft and maintain the stability of the car. A pair of lightweight ribs 9 are arranged between the upper balance beam 2 and the middle balance beam 3. The lightweight ribs 9 can enhance the structural strength of the entire device, reduce the ineffective load, and improve energy efficiency. A pair of straight beams 10 are arranged between the upper balance beam 2 and the middle balance beam 3. The two lightweight ribs 9 are located between the straight beams 10. The straight beams 10 provide the installation base for the anti-detachment device 6. The anti-detachment device 6 is installed on the straight beams 10. The anti-detachment device 6 effectively prevents the risk of guide shoe 1 failure and falling off. Two rows of balance blocks 5 are arranged on the lower balance beam 8. The balance blocks 5 can be used to adjust the balance of the elevator, reduce the labor intensity of installation and maintenance, and reduce weight. Several pressure strips 4 are arranged between the middle balance beam 3 and the lower balance beam 8. The pressure strips 4 are used to fix the balance blocks 5 on the entire balance device. At the same time, the pressure strips 4 are threaded, and the installers can adjust the limit distance according to the actual site conditions for convenient operation and maintenance.

[0020] During use, the guide shoe 1 is fixed to the upper balance beam 2 and the lower balance beam 8, guiding the elevator car up and down in the shaft. The lightweight rib 9 between the upper balance beam 2 and the intermediate balance beam 3 enhances structural strength. Meanwhile, the anti-detachment device 6 on the straight beam 10 effectively prevents the risk of the traction steel wire rope falling off due to guide shoe 1 failure, ensuring the safety of elevator operation. Then, the two rows of balance blocks 5 on the lower balance beam 8 can be used to adjust the elevator's balance, while also reducing weight, thus effectively reducing the labor intensity of installation and maintenance. Several pressure strips 4 between the intermediate balance beam 3 and the lower balance beam 8 can be tightened to fix the balance blocks 5 to the entire balancing device. These pressure strips 4 are threaded, allowing installers to adjust the limit distance according to the actual site conditions, achieving installation... For ease of maintenance, the shock absorption device 7 is then fixed to the lower balance beam 8 via a compensating steel wire rope 704. When the elevator moves up and down, it drives the balance device to move up and down, and the compensating steel wire rope 704 is subjected to force. If the compensating steel wire rope 704 swings left and right, it will be stopped by the limit screw 705, thus ensuring that the entire device is fixed and reliable. At the same time, the shock absorption and damping material 702 is pressed down by the compensating pressure plate 701. When there is vibration, the shock absorption and damping material 702 absorbs and isolates the vibration, reducing noise and vibration during elevator operation. The balance adjustment blocks 703 on both sides of the bottom of the lower balance beam 8 can be removed when the traction steel wire rope extends to ensure the buffer distance. The entire device adopts a lightweight design and optimized frame layout to reduce ineffective loads and improve energy efficiency.

[0021] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A safety device for balancing high-speed operation of a car, comprising: The upper balance beam (2) is characterized in that: a middle balance beam (3) is provided at the bottom of the upper balance beam (2), a lower balance beam (8) is provided on the side of the middle balance beam (3) away from the upper balance beam (2), and a shock absorption device (7) is provided on the lower balance beam (8).

2. A safety device for balancing high-speed operation of a car according to claim 1, characterized in that: The shock absorption device (7) includes a compensating steel wire rope (704) set on the lower balance beam (8). A pair of limiting screws (705) are symmetrically arranged on the lower balance beam (8) on both sides of the compensating steel wire rope (704). A shock-absorbing buffer damping material (702) is set on the lower balance beam (8) between the two limiting screws (705). A compensating pressure plate (701) is set on the shock-absorbing buffer damping material (702). The compensating pressure plate (701) is located at the bottom of the compensating steel wire rope (704).

3. A safety device for balancing high-speed operation of a car according to claim 2, characterized in that: A pair of balance adjustment blocks (703) are provided on both sides of the bottom of the lower balance beam (8).

4. A safety device for balancing high-speed operation of a car according to claim 3, characterized in that: A pair of guide shoes (1) are symmetrically arranged on the upper balance beam (2) and the lower balance beam (8). A pair of lightweight ribs (9) are arranged between the upper balance beam (2) and the middle balance beam (3). A pair of straight beams (10) are arranged between the upper balance beam (2) and the middle balance beam (3). The two lightweight ribs (9) are located between the straight beams (10). An anti-detachment device (6) is arranged on the straight beam (10). Two rows of balance blocks (5) are arranged on the lower balance beam (8). Several pressure strips (4) are arranged between the middle balance beam (3) and the lower balance beam (8).

Images