Elevator active guide shoes and elevator

Abstract

This invention discloses an elevator active guide shoe, comprising an upper guide plate, a lower guide plate, a column, a guide wheel, a swing arm, a spring assembly, a limiting assembly, a swing arm, and an actuator. The upper and lower guide plates are fixedly connected by the column. The lower part of the swing arm is fixed to the lower guide plate via a pivot, allowing it to swing with a single degree of freedom. The spring assembly applies a force to the swing arm in the direction of the guide rail. The limiting assembly limits the outward swing position of the swing arm. The guide wheel is rotatably fixed to the swing arm. The top of the swing arm is connected to one end of the swing arm. The other end of the swing arm is hinged to the actuator pivot with a single degree of freedom, allowing the swing arm to rotate vertically along the actuator pivot. The actuator is hinged to the upper guide plate, allowing it to swing with a single degree of freedom. The actuator pivot can rotate axially, driving the swing arm to swing, applying the actuating force to the swing arm, and finally applying a controllable positive pressure to the guide rail through the guide wheel. This invention reduces the overall projected size of the guide shoe on the horizontal plane of the shaft.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to an elevator active guide shoe and the elevator thereof. Background Technology

[0002] The horizontal stability of the elevator car is achieved through guide shoes connected to the guide rails. Currently, there are two main guide shoe design approaches: roller guide shoes and friction guide shoes. Roller guide shoes further include passive roller and active roller guide shoes. To cope with increasingly compact shaft dimensions and the refined design of elevators, the connection dimensions between the guide shoe guide plate and the car frame are gradually decreasing. However, without raising the guide shoe frame, the support force that the guide shoe needs to provide to the car should not change. The corresponding dimensions of the guide shoe's pivot shaft assembly cannot be changed to ensure structural strength; the thickness of the connecting swing arm cannot be changed; consequently, the space required for the arrangement of other components is gradually reduced. Summary of the Invention

[0003] The technical problem to be solved by this invention is how to reduce the projected size of the active guide shoe on the horizontal plane of the shaft.

[0004] To solve the above-mentioned technical problems, the present invention provides an elevator active guide shoe, including an upper guide plate, a lower guide plate, a column, a guide wheel, a swing arm, a spring assembly, a limit assembly, a swing arm, and an actuator; the upper guide plate and the lower guide plate are fixedly connected by the column;

[0005] The lower part of the swing arm is fixed to the lower guide plate via a pivot, allowing it to swing with a single degree of freedom; the spring assembly applies a force to the swing arm in the direction of the guide rail; the limiting assembly limits the outward swing position of the swing arm; and the guide wheel is rotatably fixed to the swing arm.

[0006] The top of the swing rod is connected to one end of the swing arm; the other end of the swing arm is hinged to the actuator shaft with a single degree of freedom, and the swing arm can rotate vertically along the actuator shaft.

[0007] The actuator is hinged to the upper guide plate and can swing with a single degree of freedom; the actuator shaft can rotate axially, driving the swing arm to swing, applying the actuating force to the swing arm, and finally applying a positive pressure that can be actively controlled to the guide rail through the guide wheel.

[0008] Preferably, the top of the swing rod is connected to one end of the swing arm via a ball joint.

[0009] Preferably, the screw in the spring assembly passes through the middle of the rocker arm and is fixed to the column.

[0010] Preferably, the screw in the limiting assembly passes through the middle of the swing arm and is fixed to the column.

[0011] Preferably, there are three sets of guide wheels, rocker arms, spring assemblies, limit assemblies, rocker arms, and actuators.

[0012] Preferably, the hinge points of the three actuators and the upper guide plate are arranged in a circular track.

[0013] Preferably, the diameter of the circular track is 1.8 times the diameter of the actuator.

[0014] Preferably, the hinge point between the actuator and the upper guide plate coincides with the actuator's rotating shaft.

[0015] Preferably, the line connecting the hinge points forms an equilateral triangle.

[0016] The present invention also provides an elevator having a car or counterweight, wherein the aforementioned elevator active guide shoes are installed on the car or counterweight.

[0017] Compared with the prior art, the present invention can reduce the overall projection size of the guide shoe on the horizontal plane of the shaft. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 This is a schematic diagram of the elevator active guide shoe structure in Example 1;

[0020] Figure 2 This is an enlarged schematic diagram of the elevator active guide shoe A section in Example 1;

[0021] Figure 3 This is a schematic diagram of the arrangement of the three actuators in Example 1. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art.

[0023] Example 1

[0024] This embodiment provides an elevator active guide shoe, including an upper guide plate 2, a lower guide plate 1, a column 3, a guide wheel 4, a swing arm 5, a spring assembly 7, a limit assembly 8, a swing arm 6, and an actuator 10.

[0025] The upper guide plate 2 and the lower guide plate 1 are fixedly connected by the column 3. In this embodiment, there are three sets of guide wheels 4, swing rods 5, spring assemblies 7, limit assemblies 8, swing arms 6 and actuators 10.

[0026] During elevator installation, the elevator active guide shoe is fixed to the top of the elevator car via the lower guide plate 1, and guides the car through the contact of the guide rails with the three guide wheels 4.

[0027] The lower part of the swing arm 5 is fixed to the lower guide plate 1 via the rotating shaft 9, allowing it to swing with a single degree of freedom. The screw in the spring assembly 7 passes through the middle of the swing arm 5 and is fixed to the column 3, applying a force to the swing arm 5 in the direction of the guide rail. The screw in the limiting assembly 8 passes through the middle of the swing arm 5 and is fixed to the column 3, limiting the outward swing position of the swing arm 5. The guide wheel 4 is rotatably fixed to the swing arm 5.

[0028] The top of the swing arm 5 is connected to one end of the swing arm 6 via a ball joint; the other end of the swing arm 6 is hinged to the actuator shaft with a single degree of freedom, and the swing arm 6 can rotate vertically along the actuator shaft.

[0029] The actuator base is hinged to the upper guide plate 2, allowing it to swing with a single degree of freedom. The actuator shaft can rotate axially, driving the swing arm 6 to swing. The actuator force is applied to the swing rod 5 through the ball joint, and finally, the guide wheel 4 applies a positive pressure that can be actively controlled to the guide rail.

[0030] In this embodiment, by fixing the lever 5 to the lower guide plate 1 and the actuator 10 to the upper guide plate 2 in a counter-facing arrangement, the overall projected size of the guide shoe on the horizontal plane of the shaft is reduced. Furthermore, the actuator 10 applies a force to the top of the lever 5 via the lever arm 6, increasing the lever arm and providing higher control efficiency with the same actuator power. The ball joint connection between the lever 5 and the lever arm 6 enables omnidirectional displacement control of the rotary actuator under heavy lever arm conditions.

[0031] Preferably, the hinge points of the three actuators 10 and the upper guide plate 2 are arranged in a circular track, which further saves space at the lower guide plate 1.

[0032] Preferably, the hinge point between the actuator 10 and the upper guide plate 2 coincides with the rotation axis of the actuator 10.

[0033] Preferably, the line connecting the hinge points forms an equilateral triangle.

[0034] The actuator 10 is a rotary motor that provides rotational torque. Preferably, the diameter of the circular track is 1.8 times the diameter of the actuator 10. This provides sufficient range of motion for each motor while maximizing space utilization and avoiding interference and collision.

[0035] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. An active elevator shoe, characterized in that, The device comprises an upper guide plate, a lower guide plate, a stand, a guide wheel, a swing lever, a spring assembly, a limiting assembly, a swing arm and an actuator; the upper guide plate and the lower guide plate are fixedly connected through the stand; The lower part of the swing lever is fixed with the lower guide plate through a rotating shaft and can swing in single degree of freedom; the spring assembly applies force to the swing lever in the direction of the guide rail; the limiting assembly limits the swing position of the swing lever; the guide wheel is rotatably fixed on the swing lever; The top of the swing lever is connected with one end of the swing arm; the other end of the swing arm is single-degree-of-freedom hinged with the rotating shaft of the actuator, and the swing arm can rotate along the vertical direction along the rotating shaft of the actuator; The actuator is hinged with the upper guide plate and can swing in single degree of freedom; the rotating shaft of the actuator can rotate along the axial direction to drive the swing arm to swing and apply actuating force on the swing lever, and finally apply positive pressure on the guide rail through the guide wheel, which can be actively controlled; The actuator is a rotary motor for providing rotary torque.

2. The active elevator shoe of claim 1, wherein, The top of the swing lever is connected with one end of the swing arm through a spherical hinge.

3. The active elevator shoe of claim 1, wherein, The screw rod in the spring assembly is fixed on the stand through the middle part of the swing lever.

4. The active elevator shoe of claim 1, wherein, The screw rod in the limiting assembly is fixed on the stand through the middle part of the swing lever.

5. The active elevator shoe of claim 1, wherein, There are three groups of guide wheels, swing levers, spring assemblies, limiting assemblies, swing arms and actuators.

6. Elevator active shoe according to claim 5, characterized in that The hinging points of the three actuators with the upper guide plate are arranged in a circular track.

7. Elevator active shoe according to claim 6, characterized in that The diameter of the circular track is 1.8 times the diameter of the actuator.

8. The active elevator shoe of claim 6, wherein, The hinging point of the actuator with the upper guide plate coincides with the rotating shaft of the actuator.

9. The active elevator shoe of claim 6, wherein, The connecting line of the hinging points is an equilateral triangle.

10. An elevator having a car or counterweight, characterized by The car or the counterweight is provided with the elevator active guide shoe according to any one of claims 1 to 9.

Images