Speed limiter and tensioning wheel system for elevator

Abstract

The utility model relates to the technical field of elevators, and discloses a speed governor and tensioning wheel system for an elevator, which comprises a tensioning wheel and a speed governor, the outer side of the tensioning wheel is sleeved with a support frame through a bearing, and the inside of the tensioning wheel is slidably connected with a steel rope; a transition connecting plate is arranged on the outer side of the top of the supporting rack, and a sliding rail is clamped in one end of the transition connecting plate. The tensioning wheel system is composed of the tensioning wheel, the supporting machine frame, the transition connecting plate and the linkage pressure detection assembly, after the tensioning wheel system is combined with a steel rope, a sliding rail and an existing speed limiter for use, real-time multi-point pressure detection can be carried out after the tensioning wheel is subjected to large impact load, and a plurality of sets of output pressure data are used for detecting the pressure of the tensioning wheel in real time. The real-time tensioning force between the steel rope and the tensioning wheel is fed back in a phase-changing mode, so that real-time monitoring is facilitated, and the occurrence probability of wrong linkage of the tensioning wheel system and an existing speed limiter is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevators, in particular to a speed governor and tensioner pulley system for an elevator. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. Its main components include traction system, guide system, car, door system, weight balancing system, electric traction system, electrical control system, safety protection system, etc.

[0003] The safety protection system is one of the important components to maintain the long-term safe lifting of the elevator. Most of them currently use the counterweight method to tighten the speed limit wire rope. Although it can ensure the use effect, in the specific application process, if the elevator or its internal tensioner system is subjected to a large impact load, the tensioner system is prone to jump, and then give the speed limiter an erroneous signal, affecting the normal operation of the elevator and easily causing panic among the passengers in the elevator. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a speed governor and tensioner pulley system for an elevator, which solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a speed limiter and tensioner system for an elevator, comprising a tensioner and a speed limiter, wherein the outer side of the tensioner is provided with a support frame via a bearing sleeve, and the interior of the tensioner is slidably connected to a steel rope, a transition connecting plate is provided on the outer side of the top of the support frame, a slide rail is clamped in one end of the transition connecting plate, a linkage pressure detection assembly is installed between the top of the support frame and the other end of the transition connecting plate, and no less than two pressure detection points are provided inside the linkage pressure detection assembly.

[0006] The linkage pressure detection assembly includes a center-shaped rod, a guide sleeve, a linkage rod, a buffer spring, and a pressure sensor. The middle part of the guide sleeve is fixedly connected to the bottom end of the center-shaped rod, and the top of the center-shaped rod is fixedly connected to the other end of the transition connecting plate. A guide hole is provided inside the guide sleeve. The two ends of the linkage rod are respectively fixedly connected to the surface of the top of the support frame and are clamped in the guide hole and extend to the middle part of the center-shaped rod. The shell surface of the pressure sensor is installed on the surface of the middle part of the center-shaped rod and can be fitted with the pressure-sensing surface of the pressure sensor. The two ends of the buffer spring are respectively fixedly connected to the surface of the bottom of the guide sleeve and the top surface of the support frame.

[0007] The number of guide holes is the same as the number of linkage rods, the number of buffer springs, and the number of pressure sensors, and all are set to three. The three linkage rods are composed of a support rod body and a damping block fixedly connected to the top of the support rod body, thereby meeting multi-point detection, using multiple sets of pressure data to compare with each other and display the difference, and further improving the accuracy of the detection of the linkage pressure detection component.

[0008] Preferably, the inside of both sides of the support frame and the inside of the other end of the transition connecting plate are provided with a clearance groove that can be movably connected with the steel rope, and there is a clearance space between the steel rope and the linkage pressure detection assembly to avoid structural interference.

[0009] Selectedly, an elastic protective sleeve is installed between the middle surface of the middle-shaped rod and the top of the supporting frame. The elastic protective sleeve can fully cover the three guide sleeves, the three linkage rods, the three buffer springs, and the three pressure sensors, thereby achieving dust-proof protection for the linkage pressure detection assembly and extending the service life of the linkage pressure detection assembly.

[0010] The elastic protective sleeve is preferably constructed with an elastic folding structure, which facilitates deformation and displacement, and the elastic protective sleeve can be folded, deformed and displaced as the support frame, linkage rod and buffer spring move back and forth.

[0011] The top and bottom surfaces of the elastic protective sleeve are both provided with countersunk holes, and the top surface of the support frame and the surface of the middle part of the Chinese-shaped rod are both provided with threaded holes. The top of the elastic protective sleeve and the middle part of the Chinese-shaped rod, as well as the bottom of the elastic protective sleeve and the top of the support frame are detachably installed by passing the threaded end of the screw through the countersunk hole and being threaded into the threaded hole, thereby facilitating subsequent installation and disassembly.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention comprises a tensioner pulley system comprising a tensioner pulley, a support frame, a transition connecting plate, and a linkage pressure detection assembly. When used in combination with a steel rope, a slide rail, and an existing speed governor, the tensioner pulley can perform real-time multi-point pressure detection when subjected to a large impact load. The output of multiple sets of pressure data provides disguised feedback of the real-time tensioning force between the steel rope and the tensioner pulley, enabling real-time monitoring and reducing the probability of erroneous linkage between the tensioner pulley system and the existing speed governor. If the tensioner pulley maintains a tension force less than the set standard for an extended period, prompt inspection and repair are required.

[0014] 2. The utility model provides an elastic protective sleeve as an auxiliary structure of the tensioner system, which can cover and protect the linkage pressure detection component of the operating body in the tensioner system, thereby creating favorable conditions for extending the service life of the linkage pressure detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a partial cross-sectional schematic diagram of the structure of the utility model;

[0017] Figure 3 It is a left side schematic diagram of the structure of the utility model;

[0018] Figure 4 It is a bottom view schematic diagram of the structure of the utility model;

[0019] Figure 5 It is an enlarged schematic diagram of the structural linkage pressure detection component of the utility model.

[0020] In the figure: 1. Tensioner; 2. Support frame; 3. Steel rope; 4. Transition connecting plate; 5. Slide rail; 6. Linkage pressure detection assembly; 61. Middle-shaped rod; 62. Guide sleeve; 63. Linkage rod; 64. Buffer spring; 65. Pressure sensor; 7. Elastic protective sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 A speed governor and tensioner system for an elevator includes a tensioner 1 and a speed governor. The outer side of the tensioner 1 is provided with a support frame 2 via a bearing sleeve, and a steel rope 3 is slidably connected to the interior of the tensioner 1. A transition connecting plate 4 is provided on the outer side of the top of the support frame 2, and a slide rail 5 is clamped into one end of the transition connecting plate 4. A linkage pressure detection assembly 6 is installed between the top of the support frame 2 and the other end of the transition connecting plate 4. The linkage pressure detection assembly 6 is provided with at least two pressure detection points.

[0023] The linkage pressure detection assembly 6 includes a Chinese-shaped rod 61, a guide sleeve 62, a linkage rod 63, a buffer spring 64, and a pressure sensor 65. The middle part of the guide sleeve 62 is fixedly connected to the bottom end of the Chinese-shaped rod 61, and the top of the Chinese-shaped rod 61 is fixedly connected to the other end of the transition connecting plate 4. A guide hole is provided inside the guide sleeve 62. The two ends of the linkage rod 63 are respectively fixedly connected to the surface of the top of the support frame 2 and are clamped in the guide hole and extend to the middle of the Chinese-shaped rod 61. The shell surface of the pressure sensor 65 is mounted on the surface of the middle of the Chinese-shaped rod 61 and It can be fitted and connected with the pressure-sensing surface of the pressure sensor 65. The two ends of the buffer spring 64 are respectively fixedly connected to the surface of the bottom of the guide sleeve 62 and the top surface of the support frame 2. The number of guide holes is the same as the number of linkage rods 63, the number of buffer springs 64, and the number of pressure sensors 65, and they are all set to three. The three linkage rods 63 are all composed of a support rod body and a damping block fixedly connected to the top of the support rod body, thereby meeting multi-point detection. By using multiple sets of pressure data to compare and display the difference, the accuracy of the detection of the linkage pressure detection component 6 is further improved.

[0024] The inside of both sides of the support frame 2 and the inner side of the other end of the transition connecting plate 4 are provided with a clearance groove that can be movably connected with the steel rope 3. There is a clearance space between the steel rope 3 and the linkage pressure detection component 6 to avoid structural interference;

[0025] An elastic protective sleeve 7 is installed between the middle surface of the Chinese-shaped rod 61 and the top of the support frame 2. The elastic protective sleeve 7 can fully cover the three guide sleeves 62, the three linkage rods 63, the three buffer springs 64, and the three pressure sensors 65, thereby realizing dust protection for the linkage pressure detection assembly 6 and extending the service life of the linkage pressure detection assembly 6. The elastic protective sleeve 7 specifically adopts an elastic folding structure, which is convenient for deformation and giving way, and the elastic protective sleeve 7 can be folded, deformed and given way as the support frame 2, the linkage rod 63, and the buffer spring 64 move back and forth;

[0026] Countersunk holes are provided on the top and bottom surfaces of the elastic protective sleeve 7, and threaded holes are provided on the top surface of the support frame 2 and the surface in the middle of the center-shaped rod 61. The top of the elastic protective sleeve 7 and the middle of the center-shaped rod 61, and the bottom of the elastic protective sleeve 7 and the top of the support frame 2 are detachably installed by passing the threaded end of the screw through the countersunk hole and threadedly connected to the threaded hole, thereby facilitating subsequent installation and disassembly.

[0027] Working principle:

[0028] Example 1

[0029] When in use, no elastic protective sleeve 7 is set. After the tensioner pulley system consisting of the tensioner pulley 1, the support frame 2, the transition connecting plate 4, and the linkage pressure detection assembly 6 is used in combination with the steel rope 3 and the slide rail 5, when the tensioner pulley 1 is subjected to a large impact load, the three linkage rods 63 and the three guide holes inside the guide sleeve 62 will be sequentially engaged to guide and constrain the reciprocating movement of the tensioner pulley 1 and the support frame 2, and the three linkage rods 63 that move synchronously will press against the corresponding three pressure sensors 65 one by one, and while providing damping and buffering, the three pressure sensors 65 will output pressure data, and then the three sets of pressure data will be synchronously transmitted to the background equipment, and then the three sets of pressure data will be used to disguisedly feedback the real-time tensioning force between the steel rope 3 and the tensioner pulley 1, and real-time monitoring will be carried out to reduce the probability of incorrect linkage between the tensioner pulley system and the existing speed limiter. When the tensioner pulley 1 is less than the set standard tensioning force for a long time, it needs to be checked and repaired in time.

[0030] Example 2

[0031] When in use, the elastic protective sleeve 7 is provided. For the linkage use of the tensioner system and the existing speed governor and the operation of the tensioner system itself, the steps of the above-mentioned embodiment 1 are followed. For the linkage pressure detection assembly 6 used for a long time, the elastic protective sleeve 7 is used to fully cover and protect it. The reciprocating deformation structure of the elastic protective sleeve 7 can also meet the requirements of the movement of various components in the linkage pressure detection assembly 6, fully meeting the use requirements.

[0032] When the pressure sensor 65 inside the linkage pressure detection assembly 6 fails and needs to be maintained, the screw between the top of the removable elastic protective sleeve 7 and the middle of the center-shaped rod 61 makes way for the middle space of the center-shaped rod 61.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. At the same time, in the drawings of the present utility model, fill patterns are only used to distinguish layers and do not make any other limitations.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A speed governor and tensioner system for an elevator, comprising a tensioner (1) and a speed governor, wherein the outer side of the tensioner (1) is provided with a support frame (2) via a bearing sleeve, and the interior of the tensioner (1) is slidably connected to a steel rope (3), a transition connecting plate (4) is provided on the outer side of the top of the support frame (2), and a slide rail (5) is clamped in one end of the transition connecting plate (4), and the system is characterized in that: A linkage pressure detection assembly (6) is installed between the top of the support frame (2) and the other end of the transition connecting plate (4), and no less than two pressure detection points are provided inside the linkage pressure detection assembly (6).

2. The speed governor and tensioner pulley system for an elevator according to claim 1, characterized in that: The linkage pressure detection assembly (6) comprises a center-shaped rod (61), a guide sleeve (62), a linkage rod (63), a buffer spring (64), and a pressure sensor (65). The middle part of the guide sleeve (62) is fixedly connected to the bottom end of the center-shaped rod (61), and the top of the center-shaped rod (61) is fixedly connected to the other end of the transition connecting plate (4). A guide hole is provided inside the guide sleeve (62). The two ends of the linkage rod (63) are respectively fixedly connected to the surface of the top of the support frame (2) and are clamped in the guide hole and extend to the middle part of the center-shaped rod (61). The shell surface of the pressure sensor (65) is installed on the surface of the middle part of the center-shaped rod (61) and can be connected to the pressure-sensitive surface of the pressure sensor (65). The two ends of the buffer spring (64) are respectively fixedly connected to the surface of the bottom of the guide sleeve (62) and the top surface of the support frame (2).

3. The speed governor and tensioner pulley system for an elevator according to claim 2, characterized in that: The number of the guide holes is the same as the number of the linkage rods (63), the number of the buffer springs (64), and the number of the pressure sensors (65), and is set to three. The three linkage rods (63) are composed of a support rod body and a damping block fixedly connected to the top of the support rod body.

4. The speed governor and tensioner pulley system for an elevator according to claim 1, characterized in that: The inside of both sides of the support frame (2) and the inside of the other end of the transition connecting plate (4) are provided with a clearance groove capable of being movably connected to the steel rope (3), and a clearance space exists between the steel rope (3) and the linkage pressure detection component (6).

5. The speed governor and tensioner pulley system for an elevator according to claim 2, characterized in that: An elastic protective sleeve (7) is installed between the middle surface of the middle-shaped rod (61) and the top of the support frame (2), and the elastic protective sleeve (7) can fully cover the three guide sleeves (62), the three linkage rods (63), the three buffer springs (64), and the three pressure sensors (65).

6. The speed governor and tensioner pulley system for an elevator according to claim 5, characterized in that: The elastic protective sleeve (7) specifically adopts an elastic folding structure, and the elastic protective sleeve (7) can be folded, deformed and made to move out of position as the supporting frame (2), the linkage rod (63) and the buffer spring (64) move back and forth.

7. The speed governor and tensioner pulley system for an elevator according to claim 5, characterized in that: The top surface and the bottom surface of the elastic protective sleeve (7) are both provided with countersunk holes, and the top surface of the support frame (2) and the surface of the middle part of the center-shaped rod (61) are both provided with threaded holes. The top of the elastic protective sleeve (7) and the middle part of the center-shaped rod (61), and the bottom of the elastic protective sleeve (7) and the top of the support frame (2) are both detachably installed by the threaded end of the screw passing through the countersunk hole and being threadedly connected to the threaded hole.

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