CN219259235U

CN219259235U - Tensioning wheel device

Info

Publication number: CN219259235U
Application number: CN202320211243.4U
Authority: CN
Inventors: 吕顺龙; 范方生; 林啟锋
Original assignee: Dongguan Shangjia Elevator Technology Co ltd
Current assignee: Dongguan Shangjia Elevator Technology Co ltd
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-06-27
Anticipated expiration: 2033-02-14

Abstract

The utility model relates to the technical field of elevators and discloses a tensioning wheel device which comprises a substrate, wherein a left guide wheel and a right guide wheel are respectively arranged on the left side and the right side of the substrate, the left guide wheel and the right guide wheel are respectively and correspondingly positioned on the two sides of a guide rail, a front guide wheel is arranged on the front side of the substrate, the front guide wheel is correspondingly positioned on the front side of the guide rail, and a speed-limiting wire rope sequentially bypasses the left guide wheel, the front guide wheel and the right guide wheel. In the utility model, the speed-limiting steel wire rope bypasses the left guide wheel, the front guide wheel and the rear guide wheel of the tension wheel device. The speed-limiting steel wire rope spans the guide rail, so that the space is effectively utilized, the well utilization rate is effectively improved, and the elevator car can be designed to be larger.

Description

Tensioning wheel device

Technical Field

The utility model relates to the technical field of elevators, in particular to a tension roller device.

Background

The tensioning wheel device has an indispensable function as an auxiliary component in the safety system of the elevator, and the tensioning wheel device has the function of forming the whole system of the safety tongs triggering action together with the speed limiter, the speed limiter wire rope, the safety tongs and the safety tongs lifting arm. The specific working principle of the whole system is as follows: the top of the well is provided with a speed limiter, the lower part of the well is provided with a tension pulley device, wheels with steel wire rope grooves are arranged on the tension pulley device and the speed limiter, a closed loop is formed by the steel wire rope bypassing the wheels of the upper speed limiter and the wheels of the lower tension device, and a lifting plate is arranged at the joint of the closed loop and used for driving safety tongs of a lift car. When the descending speed of the car exceeds the set rated speed, the speed limiter pawl blocks the wheels to stop rotating, meanwhile, the safety circuit is disconnected, the main machine stops running, the steel wire rope triggers the safety tongs to lift the pulling plate to act under the action of friction force of the upper wheel and the lower wheel, the safety tongs are driven to act, the safety tongs are blocked on the guide rail, the car is stopped on the guide rail, meanwhile, the safety tongs switch is driven to act, the safety circuit of the whole elevator is disconnected, and the elevator stops running.

The tensioning device in the prior art has the advantages that the effect is single, only the tensioning in a single direction is realized, other components cannot be spanned in the range of the steel wire rope, and the space cannot be effectively utilized, so that the utilization rate of a well cannot reach the maximum, and even the device cannot be used under special conditions.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide a tensioner device in which a wire rope can pass through a guide rail or other portions, thereby effectively utilizing space and improving space utilization of a hoistway.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tensioner device, comprising:

the left and right sides of the base are respectively provided with a left guide wheel and a right guide wheel, the left guide wheel and the right guide wheel are respectively and correspondingly positioned at two sides of the guide rail, the front side of the base is provided with a front guide wheel, the front guide wheel is correspondingly positioned at the front side of the guide rail,

the speed limiting steel wire rope sequentially bypasses the left guide wheel, the front guide wheel and the right guide wheel.

Further, the basement includes first fixed plate, spring upper plate, spring hypoplastron, second fixed plate, third fixed plate and switch trigger plate, first fixed plate is connected the guide rail, spring upper plate is connected first fixed plate, switch trigger plate connects first fixed plate, spring upper plate with be provided with the elastic component between the spring hypoplastron, the second fixed plate is connected the spring hypoplastron, left side leading wheel with right leading wheel rotate respectively in the both sides of second fixed plate, the third fixed plate is connected the second fixed plate, the front steering wheel rotate set up in the front side of third fixed plate, still be provided with travel switch on the third fixed plate, travel switch is located the top of switch trigger plate.

Further, the elastic piece comprises a limit bolt, a limit nut, a limit cushion block and a tension spring, wherein the limit bolt sequentially penetrates through the spring upper plate, the limit cushion block and the tension spring, and the tail part of the limit bolt is locked through the limit nut.

Further, the elastic piece can also be an elastic piece, the top of the elastic piece is connected with the spring upper plate, and the bottom of the elastic piece is connected with the spring lower plate.

Further, the elastic pieces are provided with three groups, and the three groups of elastic pieces are arranged in a triangular mode.

Further, the front guide wheels are positioned higher than the left guide wheel and the right guide wheel.

Further, a plurality of mounting holes are formed in the first fixing plate.

Further, the left guide wheel and the right guide wheel are symmetrically arranged.

The beneficial effects of the utility model are as follows:

(1) In the utility model, the speed-limiting steel wire rope bypasses the left guide wheel, the front guide wheel and the rear guide wheel of the tension wheel device. The speed-limiting steel wire rope spans the guide rail, so that the space is effectively utilized, the well utilization rate is effectively improved, and the elevator car can be designed to be larger.

(2) The tension roller device is provided with a travel switch, and under the normal state, namely when the speed-limiting steel wire rope is in the tension state, the elastic piece is in the compression state, and a gap is reserved between the switch trigger plate and the travel switch. When the speed-limiting wire rope is broken or in a loose state, the travel switch moves downwards under the action of spring force, and then the travel switch collides with the switch trigger plate, the travel switch is triggered to transmit signals to the safety loop of the elevator, and the elevator loop is disconnected at the moment, so that the potential safety hazard caused by insufficient friction force between the speed-limiting wire rope and the guide wheel due to insufficient tension force can not be prevented from being triggered.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic structural diagram of a tensioner device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of another visual structure of a tensioner device according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a tensioner device and a guide rail according to an embodiment of the present utility model.

In the figure:

1. a left guide wheel; 2. a right guide wheel; 3. a front guide wheel; 4. a substrate; 41. a first fixing plate; 411. a mounting hole; 42. a spring upper plate; 43. a spring lower plate; 44. a second fixing plate; 45. a third fixing plate; 46. a switch trigger plate; 47. an elastic member; 471. a limit bolt; 472. tensioning a spring; 473. a limit nut; 474. limiting cushion blocks; 5. a travel switch; 6. a guide rail; 7. speed-limiting steel wire rope.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1 to 3, an embodiment of the present utility model provides a tensioner device, including

The left and right sides of the substrate 4 are respectively provided with a left guide wheel 1 and a right guide wheel 2, the left guide wheel 1 and the right guide wheel 2 are respectively and correspondingly positioned at two sides of a guide rail 6, and the left guide wheel 1 and the right guide wheel 2 are symmetrically arranged; the front side of the base 4 is provided with a front guide wheel 3, the front guide wheel 3 is correspondingly positioned on the front side of the guide rail 6, and the position height of the front guide wheel 3 is higher than that of the left guide wheel 1 and the right guide wheel 2; and the speed limiting wire rope 7 sequentially bypasses the left guide wheel 1, the front guide wheel 3 and the right guide wheel 2.

In the embodiment of the utility model, the speed-limiting steel wire rope 7 bypasses the left guide wheel 1, the front guide wheel 3 and the rear guide wheel of the tension wheel device. The speed limiting steel wire rope 7 spans the guide rail 6, so that the space is effectively utilized, the well utilization rate is effectively improved, and the elevator car can be designed to be larger.

As a preferred mode of the embodiment of the present utility model, as shown in fig. 1 to 3, the base 4 includes a first fixing plate 41, an upper spring plate 42, a lower spring plate 43, a second fixing plate 44, a third fixing plate 45 and a switch triggering plate 46, the first fixing plate 41 is connected to the guide rail 6, a plurality of first mounting holes 411 are provided on the first fixing plate 41, the upper spring plate 42 is connected to the first fixing plate 41, the upper spring plate 42 can be connected to the first fixing plate 41 by welding, the switch triggering plate 46 is connected to the first fixing plate 41 by screws, an elastic member 47 is provided between the upper spring plate 42 and the lower spring plate 43, the second fixing plate 44 is connected to the lower spring plate 43, the left guide wheel 1 and the right guide wheel 2 are respectively rotated on two sides of the second fixing plate 44, the third fixing plate 45 is connected to the second fixing plate 44, the guide wheel 3 is rotatably provided on the third fixing plate 45, and the switch triggering plate 45 is further provided on the front side of the third fixing plate 45. In the embodiment of the present utility model, the first fixing plate 41 is fixed to the guide rail 6 by pressing and screwing the guide rail 6 through the first mounting hole 411. In a normal state, i.e. when the speed-limiting wire rope 7 is in a tensioned state, the elastic member 47 is in a compressed state, and a gap is formed between the switch trigger plate 46 and the travel switch 5. When the speed limiting wire rope 7 is broken or in a loosening state, under the action of spring force, the travel switch 5 moves downwards, at the moment, the travel switch 5 collides with the switch triggering plate 46, the travel switch 5 is triggered to transmit signals to a safety loop of an elevator, and at the moment, the elevator loop is disconnected, so that the potential safety hazard caused by insufficient friction force between the speed limiting wire rope 7 and the guide wheels due to insufficient tensioning force can be prevented from being caused.

As a preferred mode of the embodiment of the present utility model, as shown in fig. 1 to 3, the elastic member 47 includes a limit bolt 471, a limit nut 473, a limit pad 474 and a tension spring 472, wherein the limit bolt 471 passes through the upper spring plate 42, the limit pad 474 and the tension spring 472 in sequence, and the tail portion thereof is locked by the limit nut 473.

As a preferred mode of the embodiment of the present utility model, the elastic member 47 may also be a spring plate (not shown), wherein the top of the spring plate is connected to the upper spring plate 42, and the bottom of the spring plate is connected to the lower spring plate 43.

As a preferred mode of the embodiment of the present utility model, in order to make the tensioner device more stable during operation and more uniform in elastic force distribution, the elastic members 47 are provided with three groups, and the three groups of elastic members 47 are arranged in a triangular manner.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims

1. A tensioner assembly comprising:

the left and right sides of the base (4) are respectively provided with a left guide wheel (1) and a right guide wheel (2), the left guide wheel (1) and the right guide wheel (2) are respectively and correspondingly positioned at two sides of the guide rail (6), the front side of the base (4) is provided with a front guide wheel (3), the front guide wheel (3) is correspondingly positioned at the front side of the guide rail (6),

and the speed limiting steel wire rope (7) sequentially bypasses the left guide wheel (1), the front guide wheel (3) and the right guide wheel (2).

2. The tensioner device according to claim 1, wherein the base (4) comprises a first fixing plate (41), an upper spring plate (42), a lower spring plate (43), a second fixing plate (44), a third fixing plate (45) and a switch triggering plate (46), the first fixing plate (41) is connected with the guide rail (6), the upper spring plate (42) is connected with the first fixing plate (41), the switch triggering plate (46) is connected with the first fixing plate (41), an elastic piece (47) is arranged between the upper spring plate (42) and the lower spring plate (43), the second fixing plate (44) is connected with the lower spring plate (43), the left guide wheel (1) and the right guide wheel (2) are respectively rotated on two sides of the second fixing plate (44), the third fixing plate (45) is connected with the second fixing plate (44), the front guide wheel (3) is rotatably arranged on the front side of the third fixing plate (45), and the travel switch (5) is further arranged on the upper travel switch (5).

3. The tensioner of claim 2, wherein the elastic member (47) comprises a limit bolt (471), a limit nut (473), a limit pad (474) and a tension spring (472), the limit bolt (471) sequentially passes through the spring upper plate (42), the limit pad (474) and the tension spring (472), and the tail part thereof is locked by the limit nut (473).

4. A tensioner according to claim 2, characterized in that said elastic member (47) is also a spring plate, the top of said spring plate being connected to said upper spring plate (42), the bottom of said spring plate being connected to said lower spring plate (43).

5. A tensioner according to claim 3 or 4, characterized in that said elastic members (47) are provided in three groups, said elastic members (47) of three groups being arranged in a triangular configuration.

6. A tensioner according to claim 1, characterized in that the front guide wheel (3) is positioned higher than the left guide wheel (1) and the right guide wheel (2).

7. A tensioner according to claim 2, characterized in that the first fixing plate (41) is provided with a plurality of mounting holes (411).

8. A tensioner according to claim 1, characterized in that the left guide wheel (1) and the right guide wheel (2) are arranged symmetrically.