CN205739871U - The drive mechanism of brake device for elevator - Google Patents

Abstract

The utility model discloses the drive mechanism of a kind of brake device for elevator, its upper and lower support including being positioned at two ends and connect rotary shaft, the fork driving a connecting rod to rotate and the driver element driving fork to rotate that the connecting rod of upper and lower support is parallel with connecting rod and allows connecting rod to rotate against.This utility model can drive upper and lower support to realize the bi-directional braking of steel wire rope, avoid Safe Failure, reduce the serious accident of casualties, simple in construction, easy for installation, engaged position is little, may be installed by elevator(lift) machine room or traction machine, being easy to old ladder transformation, solving existing elevator does not has a difficult problem for deadman's brake installation site.

Description

The drive mechanism of brake device for elevator

Technical field

This utility model relates to the drive mechanism of a kind of brake device for elevator.

Background technology

Along with the development of urban construction, and the raising of people's quality of life, resident trip can enjoy good land During Public Transport Service, also thirst in house, obtain vertical transportation easily.Therefore, in recent years, the quantity of elevator rapidly increases Long, whole nation elevator recoverable amount was from 28.5 ten thousand increase 2013 300.93 ten thousand of 2003.Elevator is as a kind of special The different vehicles are that common people go on a journey requisite walking-replacing tool, bring unprecedented side to the daily life of the people Just, its safety run, reliability are the problems of a lot of people's general concern, and residential lift quality directly affects old hundred Surname quality of life, 2014,2523 uses 15 years and the above old elevator of drug in some provinces were carried out by State General Administration for Quality Supervision Selective examination, the bigger potential safety hazard of elevator with the presence of 7%, and elevator safety accident increase also close by government and news media Cut concern.On August 16th, 2015 Vice Premier of the State Council, country Safety Committee director Ma Kai elevator is classified as the fourth-largest dangerous neck of China Territory, comes before colliery, and carries out thorough examination of safety in production and comprehensive supervise and examine immediately.Short less than in 3 months, China Top news is being looked after by the concentration of CCTV's media and State Council, it is impossible to Bu Shuo China elevator safety is implicitly present in thing with elevator Therefore hidden danger, to not administering not all right stage.And China is that " car opens the door at the major security risk existed with elevator Ladder " and " car stall or out of control fall or rush to summit ", and cause the reason of these potential safety hazards specific as follows:

1, when Elevator Stop, after hall door and car door are opened, passenger and goods turnover car, now can not get rid of super Carry, vibrations cause service brake brake force not enough, and braking surface exists greasy dirt, losing efficacy such as braking occurs in brake mechanical part Pad wear, the aging generation plastic deformation of energy storage compression spring etc.；

Although 2 brakes have sufficiently large brake force, but still can there is overload, shake and cause steel wire rope at traction sheave On due to traction deficiency produce sliding (steel wire rope and traction sheave contact surface have oil, length of steel rope time use attenuate cause with Traction sheave race contact surface reduces, traction sheave work surface weares and teares, changes underproof traction sheave etc.)；And once brake force is not enough Or traction is not enough, will result in the serious accident of casualties；

3, frequency converter control unit fault, sends false command and causes enabling to walk ladder accident.

Thus it is necessary to propose the drive mechanism of a kind of brake device for elevator, to realize the two-way system of steel wire rope or guide rail Dynamic, thoroughly solve above-mentioned potential safety hazard.

Utility model content

This utility model purpose is: provide the drive mechanism of a kind of brake device for elevator, and upper and lower support can be driven to realize steel Cord or the bi-directional braking of guide rail, highly versatile, it is simple to the transformation of old elevator, and reliability is high.

The technical solution of the utility model is: the drive mechanism of a kind of brake device for elevator, comprising: be positioned at two ends Upper and lower support and connect the connecting rod of upper and lower support parallel with connecting rod and allow connecting rod to rotate against rotary shaft, Drive the fork that a connecting rod rotates and the driver element driving fork to rotate.

On the basis of technique scheme, farther include following attached technical scheme:

Described driver element is electric magnet, electronic, hydraulic pressure, pneumatic unit.

Described support includes a pair first poles being oppositely arranged and the first pole respective hinge and a pair be oppositely arranged Second pole, wherein first and second pole is collectively forming expansible or the tetragon frame reduced, and surrounds for steel wire rope or guide rail The rope of up-and-down movement or guide-rail channel.

The length of described second pole is more than the length of the first pole, and the movable clip block of the second pole and rope brake is fixed Connecting, at least a part of which one connecting rod passes movable clip block.

The connecting rod being connected with described fork is separated from each other with movable clip block and rotates freely.

Described movable clip block has positive and negative lozenges.

This utility model advantage is:

1, the positive and negative lozenges of fixing fixture block and movable clip block is utilized to coordinate the bi-directional braking realizing steel wire rope or guide rail And realize self-locking, to reach the purpose of braking, it is to avoid Safe Failure, reduce the serious accident of casualties.

2, upper and lower support is driven to make movable clip block keep clamp position under electric magnet effect, and once after Power resumption, Movable clip block can be released voluntarily to steel wire rope or the clamp pressure of guide rail, make steel wire rope or guide rail recover normal operating condition, from And efficiently solve the self-healing problem of large-area power-cuts equipment.

3, simple in construction, easy for installation, engaged position is little, may be installed by elevator(lift) machine room or traction machine, it is simple to old ladder changes Making, solving existing elevator does not has a difficult problem for deadman's brake installation site.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:

Fig. 1 is that this utility model is applied to brake device for elevator axonometric chart under a visual angle；

Fig. 2 is that this utility model is applied to brake device for elevator axonometric chart under another visual angle；

Fig. 3 is brake device for elevator and the top view of steel wire rope in this utility model；

Fig. 4 is the structure chart fixing fixture block in this utility model with movable clip block；

Fig. 5 is the side view that in this utility model, drive mechanism is in clamped condition；

Fig. 6 is the side view that in this utility model, drive mechanism is in open configuration.

Detailed description of the invention

Embodiment: as shown in figures 1 to 6, this utility model provides the concrete real of the drive mechanism of a kind of brake device for elevator Executing example, wherein brake device for elevator is as Figure 1-3, and it is for steel wire rope 42 or guide rail bi-directional braking and include: at least one To fixing fixture block 10, can be relatively fixed fixture block 10 move back and forth and be positioned at least one pair of movable clip block 20 of steel wire rope 42 both sides, Drive the drive mechanism 30 of movable clip block 20 motion and be arranged on movable clip block 20 and with the rubbing of steel wire rope 42 CONTACT WITH FRICTION Pad 50, wherein fixes fixture block 10, and as shown in Figure 4, it is provided with the first inclined-plane 12 and is positioned at 12 liang of the first inclined-plane in side A pair second inclined-planes 14 of side, movable clip block 20 is provided with the 3rd inclined-plane 22, the Yi Jiyu coordinated with the first inclined-plane 12 in side A pair the 4th inclined-planes 24 that corresponding second inclined-plane coordinates accordingly.Fixing fixture block 10 opposite side then with support spring (not shown) against Contact, movable clip block 20 opposite side is then provided with friction plate 50.The incline direction on the first inclined-plane 12 and inclining of the second inclined-plane 14 Tilted direction is contrary each other, and the incline direction on the 3rd inclined-plane 22 and the incline direction on the 4th inclined-plane 24 are contrary each other, thus fixation clamp It is slidably matched by the form of positive and negative lozenges between block 10 and movable clip block 20, i.e. fixes fixture block 10 and be provided with positive and negative wedge Shape face, and movable clip block 20 is also correspondingly provided with positive and negative lozenges and coordinates, the first inclined-plane 12 and the 4th in the present embodiment Inclined-plane 24 is positive lozenges, wedge like protuberance, and the second inclined-plane 14 and the 3rd inclined-plane 22 are anti-lozenges, wedge like groove.

As seen in figs. 5-6, drive mechanism 30 includes the upper and lower support being positioned at two ends and connects the connection of upper and lower support Bar 36 parallel with connecting rod 36 and allow connecting rod rotate against rotary shaft 37, drive one connecting rod 36 rotate fork 38, Drive the driver element 39 that fork 38 rotates.Driver element 39 preferably employs electric magnet mode in the present embodiment, similarly, drives Moving cell 39 can also be electronic, hydraulic pressure, pneumatic unit.Support includes a pair first poles 32 being oppositely arranged and first Bar 32 respective hinge and a pair second poles 34 being oppositely arranged, the wherein center of connecting rod 36 and the first pole 32 and second The central coaxial that bar 34 is hinged, the number of connecting rod 36 is 4, and two connecting rods 36 of one pair of which linea angulata are through movable clip block 20, another cornerwise two connecting rods 36 are the most exposed outside, and the length of the second pole 34 is more than the length of the first pole 32, And first and second pole 32,34 be collectively forming parallelogram frame, and be collectively forming confession with the friction plate 50 on movable clip block 20 The rope passage 40 of steel wire rope 42 or guide rail up-and-down movement or guide-rail channel.

Time initial, the 4th inclined-plane 24 of movable clip block 20 with the second inclined-plane 14 of fixing fixture block 10 against coordinating, and movable Then the first inclined-plane 12 with fixing fixture block 10,3rd inclined-plane 22 of fixture block 20 is located remotely from each other.

When car door is opened, controller signals to driver element 39, driver element 39 dead electricity, and promotes fork 38 to revolve Turn, drive the connecting rod 36 of upper and lower support to rotate around rotary shaft 37, promote the distance between the second pole 34 to narrow, perform folder Tight action, the movable clip block 20 of steel wire rope 42 both sides is towards steel wire rope 42 clamping movement, and thus friction plate 50 supports with steel wire rope 42 It is abutted against tactile.When steel wire rope 42 occurs unexpected moving up, movable clip block 20 also synchronizes up to walk under the effect of frictional force, lives 4th inclined-plane 24 of dynamic fixture block 20 is gradually distance from the second inclined-plane 14 of fixing fixture block 10 and coordinates, and the 3rd of movable clip block 20 the is oblique Face 22 the most gradually with the first inclined-plane 12 of fixing fixture block 10 against coordinating, thus movable clip block 20 and fixing fixture block 10 are in level side To there is interval, and movable clip block 20 more up moves, and the gap between friction plate 50 and steel wire rope 42 is the least, and frictional force is more Greatly, it is produced from the locking angle between friction plate 50 and the steel wire rope 42 of thus movable clip block 20, it is achieved self-locking, it is ensured that car safety is stopped Lean on；When there is unexpected moving down in steel wire rope 42, the 4th inclined-plane 24 of movable clip block 20 and the second inclined-plane of fixing fixture block 10 14 coordinate and move downward, the 3rd inclined-plane 22 of movable clip block 20 then continue away from the first inclined-plane 12 of fixing fixture block 10 Coordinating, movable clip block 20 more moves down, and the gap between friction plate 50 and steel wire rope 42 is the least, and frictional force is the biggest, thus lives It is produced from the locking angle, it is achieved self-locking, it is ensured that car safety is stopped, and the most also keeps away between friction plate 50 and the steel wire rope 42 of dynamic fixture block 20 Exempt from existing structure just produces self-locking from beginning, it is desirable to spring dynamics is relatively big, and required power of electromagnet is bigger.And one When denier car door is closed, controller signals to driver element 39, and driver element 39 obtains electric, and upper and lower support performs expansion action, Friction plate 50 disengages with steel wire rope 42, and steel wire rope 42 recovers normal operating condition, and car normally moves up and down.

Owing to this utility model uses technique scheme, have the advantage that

1, the positive and negative lozenges of fixing fixture block and movable clip block is utilized to coordinate the bi-directional braking realizing steel wire rope or guide rail And realize self-locking, to reach the purpose of braking, it is to avoid Safe Failure, reduce the serious accident of casualties.

2, upper and lower support is driven to make movable clip block keep clamp position under electric magnet effect, and once after Power resumption, The movable clip block clamp pressure to steel wire rope can be released voluntarily, make steel wire rope recover normal operating condition, thus efficiently solve The self-healing problem of large-area power-cuts equipment.

3, simple in construction, easy for installation, engaged position is little, may be installed by elevator(lift) machine room or traction machine, it is simple to old ladder changes Making, solving existing elevator does not has a difficult problem for deadman's brake installation site.

Certainly above-described embodiment is only for illustrating technology of the present utility model design and feature, its object is to allow and is familiar with this The people of technology will appreciate that content of the present utility model and implements according to this, can not limit protection model of the present utility model with this Enclose.All equivalent transformations done according to the spirit of this utility model main technical schemes or modification, all should contain in this reality Within novel protection domain.

Claims (6)

1. the drive mechanism of a brake device for elevator, it is characterised in that comprising: be positioned at the upper and lower support at two ends, Yi Jilian Connect, the connecting rod of lower carriage is parallel with connecting rod and allow connecting rod to rotate against rotary shaft, drive a connecting rod to rotate Fork and drive fork rotate driver element.

The drive mechanism of a kind of brake device for elevator the most as claimed in claim 1, it is characterised in that: described driver element is electricity Magnet, electronic, hydraulic pressure, pneumatic unit.

The drive mechanism of a kind of brake device for elevator the most as claimed in claim 2, it is characterised in that: described support includes relatively A pair first poles arranged and the first pole respective hinge and a pair second poles, wherein first and second poles being oppositely arranged Be collectively forming expansible or the tetragon frame reduced, and surround for steel wire rope or or the rope of guide rail up-and-down movement or or Guide-rail channel.

The drive mechanism of a kind of brake device for elevator the most as claimed in claim 3, it is characterised in that: the length of described second pole Degree is more than the length of the first pole, and the second pole is fixed with the movable clip block of rope brake and is connected, and at least a part of which one connecting rod is worn Cross movable clip block.

The drive mechanism of a kind of brake device for elevator the most as claimed in claim 4, it is characterised in that: it is connected with described fork Connecting rod be separated from each other with movable clip block and rotate freely.

The drive mechanism of a kind of brake device for elevator the most as claimed in claim 4, it is characterised in that: described movable clip block has Positive and negative lozenges.