CN218752972U

CN218752972U - Chain anti-deviation device for elevator

Info

Publication number: CN218752972U
Application number: CN202223072483.5U
Authority: CN
Inventors: 占光明; 陈凌; 万亚芳
Original assignee: Huangshi Youxin Machinery Manufacturing Co ltd
Current assignee: Huangshi Youxin Machinery Manufacturing Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-28
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a chain prevents off tracking device for lifting machine relates to the chain and prevents off tracking technical field, include chain case, pivot one, sprocket, prevent off tracking unit and buffer gear, the chain case: the front side is equipped with opening and opening part and is equipped with case lid, sprocket: be equipped with two and set up respectively between chain case and case lid, prevent off tracking unit: contain fixed axle, fixed U type frame, gyro wheel and pivot two, the chain incasement side is equipped with the fixed axle, be connected through pivot two and two gyro wheels rotation respectively between two horizontal parts of two fixed U type frames that transversely set up in opposite directions on the fixed axle, buffer gear: the two ends of the second rotating shaft are respectively provided with a buffer mechanism, and the buffer mechanism can absorb energy when the chain running at high speed is rectified and limited, so that the chain is prevented from damaging the limiting device, and the potential safety hazard of the device is reduced.

Description

Chain anti-deviation device for elevator

Technical Field

The utility model relates to a deviation technical field is prevented to the chain specifically is a deviation device is prevented to chain for lifting machine.

Background

A sprocket refers to a cogged wheel-shaped mechanical part that meshes with a chain. A wheel with cogged sprocket teeth, intended to mesh with blocks of precise pitch on the chain-link ring or on the cable, a solid or spoked gear, which meshes with the (roller) chain to transmit the motion, but the chain is affected during its operation with the possibility of deviation of the chain;

the chain deviation preventing mechanism for the elevator, which is proposed by the prior art with the grant publication number of CN212739446U, comprises side plates on two sides of the elevator, two symmetrically arranged chains and chain wheels, wherein a fixed shaft is transversely and fixedly arranged between the two side plates, the two chain wheels are respectively and rotatably connected with the left end and the right end of the fixed shaft through first rotating bearings, and the chains are meshed with the chain wheels;

its stopper and the U template of preventing off tracking mechanism high-speed running has the risk of damaging stop device when carrying on spacingly to the chain, and has the potential safety hazard, is unfavorable for being used for preventing the off tracking of lifting machine chain, for this reason, we provide a chain for lifting machine and prevent off tracking device.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a chain for lifting machine and prevent centring device, can be through the buffer gear who sets up to the chain of high-speed operation rectify spacing in will energy absorption, prevent that the chain from damaging stop device, reduced the potential safety hazard of device, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a chain deviation prevention device for a hoister comprises a chain box, a first rotating shaft, a chain wheel, a deviation prevention unit and a buffer mechanism;

chain case: the front side is provided with an opening, and the opening is provided with a box cover;

sprocket: two chain boxes are arranged and are respectively arranged between the chain box and the box cover;

the deviation preventing unit: the chain box comprises a fixed shaft, two fixed U-shaped frames, two idler wheels and a second rotating shaft, wherein the fixed shaft is arranged on the inner side of the chain box, and two horizontal parts of the two fixed U-shaped frames which are transversely arranged in opposite directions on the fixed shaft are respectively and rotatably connected with the two idler wheels through the second rotating shaft;

a buffer mechanism: and the two ends of the second rotating shaft are respectively provided with a first connecting rod and a second connecting rod. The chain case is used as the main body of the device and is used for fixedly mounting important parts. The fixed shaft of the deviation-preventing unit is used for fixedly installing the fixed U-shaped frame, the idler wheel of the fixed U-shaped frame is used for limiting the chain exceeding the limiting area, the idler wheel is used for converting sliding friction between the chain running at a high speed and the fixed U-shaped frame into rotating friction, and damage of the chain to the device is reduced. The buffer mechanism is used for further buffering.

Furthermore, the deviation preventing unit is provided with four groups, and the deviation preventing unit is respectively arranged at the two ends of the upper side and the lower side of one side opposite to the two chain wheels. The deviation preventing unit is provided with four groups and is arranged at four positions where the chain is most easy to deviate, and the deviation preventing unit is used for preventing the chain from deviating.

Furthermore, the buffer mechanism comprises sliding grooves, compression springs and sliding blocks, the sliding grooves are formed in the positions, corresponding to the second rotating shafts, of the two horizontal parts of each fixed U-shaped frame respectively, the two end parts of each second rotating shaft are rotatably connected with the sliding blocks respectively, each sliding block longitudinally slides in the corresponding sliding groove respectively, and the bottom of each sliding block is fixedly connected with the vertical parts of the fixed U-shaped frames through the compression springs respectively. The sliding block of the buffer mechanism slides on the sliding groove and is used for absorbing the force of the chain in the longitudinal direction when the chain deviates, and the force is converted into the elastic potential energy of the compression spring through the sliding block.

Further, the locking device further comprises a locking unit, wherein the locking unit comprises locking pins, a third rotating shaft and fixing bolts, the locking pins are arranged between the upper side and the lower side of each two opposite fixed U-shaped frames respectively, each locking pin is rotatably connected with the corresponding fixed U-shaped frame on one side through the third rotating shaft, and the other end of each locking pin is fixedly connected with the fixing bolt of the other fixed U-shaped frame through the third rotating shaft. The locking unit is used for detachably and fixedly connecting every two opposite fixed U-shaped frames, and the chain is convenient to replace and maintain.

Furthermore, the anti-deviation device further comprises chains, and the chains respectively penetrate through the space between two opposite fixed U-shaped frames of each anti-deviation unit. The chain transmits power between the two sprockets.

Furthermore, the two chain wheels are respectively connected with the chain box in a rotating mode through a first rotating shaft arranged between the chain box and the box cover, and the two chain wheels are connected through chain transmission.

Compared with the prior art, the beneficial effects of the utility model are that: this a chain prevents off tracking device for lifting machine has following benefit:

1. the chain deviation preventing device for the hoister is provided with the idler wheels, sliding friction of a chain on the deviation preventing device can be converted into rotating friction through the idler wheels arranged on the deviation preventing unit, and damage of the chain running at a high speed on the device is reduced;

2. the chain deviation preventing device for the elevator is provided with the buffer mechanism, and the compression spring is arranged to absorb the force of the chain in the longitudinal direction when the chain deviates, so that the device is further buffered;

3. this a chain prevents off tracking device for lifting machine can be to the energy absorption when rectifying a deviation spacing to the chain of high-speed operation through the buffer gear who sets up, prevents that the chain from damaging stop device, has reduced the potential safety hazard of device.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention in a partial cross section;

FIG. 3 is a schematic view of a partial enlarged structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of the second partial section structure of the present invention;

fig. 5 is a schematic view of a part of the enlarged structure at B in fig. 4 according to the present invention.

In the figure: the chain box 1, the box cover 2, the first rotating shaft 3, the chain wheel 4, the chain 5, the deviation preventing unit 6, the fixing shaft 61, the fixing U-shaped frame 62, the roller 63, the second rotating shaft 64, the buffer mechanism 7, the sliding chute 71, the compression spring 72, the sliding block 73, the locking unit 8, the locking pin 81, the third rotating shaft 82 and the fixing bolt 83.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-5, the present embodiment provides a technical solution: a chain deviation prevention device for a hoister comprises a chain box 1, a first rotating shaft 3, a chain wheel 4, a deviation prevention unit 6 and a buffer mechanism 7;

chain case 1: an opening is arranged at the front side, and a box cover 2 is arranged at the opening; the chain case 1 serves as a main body of the apparatus for fixedly mounting important parts.

The chain wheel 4: two chain boxes are arranged and are respectively arranged between the chain box 1 and the box cover 2;

deviation prevention unit 6: the chain box comprises a fixed shaft 61, fixed U-shaped frames 62, rollers 63 and a second rotating shaft 64, wherein the fixed shaft 61 is arranged on the inner side of the chain box 1, and two horizontal parts of the two fixed U-shaped frames 62 which are transversely arranged in opposite directions on the fixed shaft 61 are respectively and rotatably connected with the two rollers 63 through the second rotating shaft 64; the fixed shaft 61 of the deviation preventing unit 6 is used for fixedly installing the fixed U-shaped frame 62, the roller 63 of the fixed U-shaped frame 62 is used for limiting the chain exceeding the limiting area, and the roller 63 is used for converting sliding friction between the chain running at high speed and the fixed U-shaped frame 62 into rotating friction, so that the damage of the chain to the device is reduced.

The deviation preventing units 6 are provided with four groups and are respectively arranged at the upper and lower ends of one side opposite to the two chain wheels 4. The deviation preventing unit 6 is provided with four groups and is arranged at four positions where the chain is most easy to deviate, and is used for preventing the chain from deviating.

The buffer mechanism 7: are respectively arranged at the two ends of the second rotating shaft 64. The damping mechanism 7 is used for further damping.

The buffer mechanism 7 comprises sliding grooves 71, compression springs 72 and sliding blocks 73, the sliding grooves 71 are formed in the positions, corresponding to the second rotating shafts 64, of the two horizontal parts of each fixed U-shaped frame 62 respectively, the sliding blocks 73 are rotatably connected to the two end parts of each second rotating shaft 64 respectively, each sliding block 73 longitudinally slides in the corresponding sliding groove 71, and the bottom of each sliding block 73 is fixedly connected with the vertical part of the fixed U-shaped frame 62 through the compression springs 72 respectively. The slider 73 of the cushion mechanism 7 slides on the slide groove 71 to absorb the force in the longitudinal direction when the chain is deviated, and the force is converted into the elastic potential energy of the compression spring 72 by the slider 73.

The locking device further comprises a locking unit 8, wherein the locking unit 8 comprises locking pins 81, three rotating shafts 82 and fixing bolts 83, the locking pins 81 are arranged between the upper side and the lower side of each two opposite fixed U-shaped frames 62 respectively, each locking pin 81 is rotatably connected with the fixed U-shaped frame 62 on one corresponding side through the three rotating shafts 82 respectively, and the other end of each locking pin 81 is fixedly connected with the fixing bolt 83 arranged on the other side of the fixed U-shaped frame 62 respectively. The locking unit 8 is used for detachably and fixedly connecting every two opposite fixed U-shaped frames 62, so that the replacement and maintenance of the chain are facilitated.

The anti-deviation device further comprises chains 5, and the chains 5 respectively penetrate between the two opposite fixed U-shaped frames 62 of each group of anti-deviation units 6. The chain 5 transmits power between the two sprockets 4.

Two sprockets 4 are connected with chain case 1 through the pivot 3 that sets up between chain case 1 and the case lid 2 respectively and rotate, and are connected through the transmission of chain 5 between two sprockets 4.

The utility model provides a pair of a chain prevents off tracking device's theory of operation as follows for lifting machine:

the chain box 1 is used as a main body of the device and is used for fixedly mounting important parts, a fixed shaft 61 of the deviation preventing unit 6 is used for fixedly mounting a fixed U-shaped frame 62, rollers 63 of the fixed U-shaped frame 62 are used for limiting chains exceeding a limiting area, the rollers 63 are used for converting sliding friction between the high-speed running chains and the fixed U-shaped frame 62 into rotating friction, damage of the chains to the device is reduced, the deviation preventing unit 6 is provided with four groups and is arranged at four positions where the chains are most prone to deviation and used for preventing the chains from deviating, the buffer mechanism 7 is used for further buffering, a sliding block 73 of the buffer mechanism 7 slides on a sliding groove 71 and is used for absorbing force of the chains in the longitudinal direction when the chains are deviated, the force is converted into elastic potential energy of a compression spring 72 through the sliding block 73, the locking unit 8 is used for detachably and fixedly connecting every two opposite fixed U-shaped frames 62, replacement and maintenance of the chains are convenient, and power is transmitted between two chain wheels 4 through the chain 5.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention can be used in other related technical fields, directly or indirectly, or in the same way as the present invention.

Claims

1. The utility model provides a chain prevents centring device for lifting machine which characterized in that: the chain box comprises a chain box (1), a first rotating shaft (3), a chain wheel (4), an anti-deviation unit (6) and a buffer mechanism (7);

chain case (1): an opening is arranged at the front side, and a box cover (2) is arranged at the opening;

sprocket (4): two chain boxes are arranged and are respectively arranged between the chain box (1) and the box cover (2);

deviation prevention unit (6): the chain box comprises a fixed shaft (61), fixed U-shaped frames (62), rollers (63) and a second rotating shaft (64), wherein the fixed shaft (61) is arranged on the inner side of the chain box (1), and two horizontal parts of the two fixed U-shaped frames (62) which are transversely arranged in opposite directions on the fixed shaft (61) are respectively in rotating connection with the two rollers (63) through the second rotating shaft (64);

buffer mechanism (7): are respectively arranged at the two ends of the second rotating shaft (64).

2. The chain deviation preventing device for the hoisting machine as claimed in claim 1, wherein: the deviation preventing units (6) are provided with four groups and are respectively arranged at the two ends of the upper side and the lower side of one side opposite to the two chain wheels (4).

3. The chain deviation preventing device for the hoisting machine as claimed in claim 1, wherein: buffer gear (7) contain spout (71), compression spring (72) and slider (73), spout (71) have been seted up respectively to the position that two horizontal parts of every fixed U type frame (62) correspond pivot two (64), two tip of every pivot two (64) rotate respectively and are connected with slider (73), every slider (73) longitudinal sliding in its corresponding spout (71) respectively, the bottom of every slider (73) is respectively through compression spring (72) and the vertical part fixed connection of fixed U type frame (62).

4. The chain deviation preventing device for the hoisting machine as claimed in claim 1, wherein: still include locking unit (8), locking unit (8) contain fitting pin (81), pivot three (82) and fixing bolt (83), are equipped with fitting pin (81) respectively between the upper and lower both sides of per two fixed U type frame (62) in opposite directions, and every fitting pin (81) rotate through pivot three (82) rather than fixed U type frame (62) of the one side that corresponds and are connected, and the other end of every fitting pin (81) is respectively through setting up fixing bolt (83) fixed connection at the fixed U type frame of opposite side (62).

5. The chain deviation preventing device for the hoisting machine as claimed in claim 1, wherein: the anti-deviation device is characterized by further comprising chains (5), wherein the chains (5) respectively penetrate through the space between two opposite fixed U-shaped frames (62) of each anti-deviation unit (6).

6. The chain deviation preventing device for the hoisting machine as claimed in claim 5, wherein: two chain wheels (4) are respectively connected with the chain box (1) in a rotating way through a rotating shaft I (3) arranged between the chain box (1) and the box cover (2), and the two chain wheels (4) are in transmission connection through a chain (5).