CN205132804U - Prevent unexpected arresting gear who removes of elevator - Google Patents
Prevent unexpected arresting gear who removes of elevator Download PDFInfo
- Publication number
- CN205132804U CN205132804U CN201520884139.7U CN201520884139U CN205132804U CN 205132804 U CN205132804 U CN 205132804U CN 201520884139 U CN201520884139 U CN 201520884139U CN 205132804 U CN205132804 U CN 205132804U
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- China
- Prior art keywords
- friction shoe
- friction
- brake equipment
- telescoping mechanism
- accidental movement
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- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a prevent unexpected arresting gear who removes of elevator, it includes: the elevator wheel, and elevator wheel both sides or wire rope rubbing contact's a pair of clutch blocks and this to the clutch blocks homogeneous phase even and make between two clutch blockss telescopic machanism that the interval is elongated or shorten, wherein this clutch blocks has the oblique angle of auto -lock. The utility model discloses be provided with independent emergency brake arrangement, prevent that wire rope from because not enough production of traction is slided on the rope sheave, driving the clutch blocks through telescopic machanism and rubbing to wire rope, avoid safe inefficacy, reduce the malignant accident of casualties.
Description
Technical field
The utility model relates to a kind of brake equipment preventing elevator accidental movement.
Background technology
Along with the development of urban construction, and the raising of people's quality of life, when resident trip can enjoy good land Public Transport Service, also thirst for obtaining vertical transportation easily in house.Therefore, in recent years, the quantity rapid growth of elevator, national elevator recoverable amount increases 300.93 ten thousand in 2013 from 2003 28.5 ten thousand.Elevator is that common people go on a journey requisite walking-replacing tool as a kind of special vehicle, unprecedented convenience is brought to the daily life of the people, its safety run, reliability are the problems of a lot of people's general concern, residential lift quality, directly affect common people's quality of life, 2014, State General Administration for Quality Supervision uses 15 years to 2523 of drug in some provinces and above old elevator is spot-check, have the elevator of 7% exist larger potential safety hazard, and elevator safety accident increase the close attention being also subject to government and news media.On August 16th, 2015 Vice Premier of the State Council, elevator is classified as the fourth-largest dangerous field of China by national Safety Committee director Ma Kai, come before colliery, and carry out thorough examination of safety in production and comprehensive supervise and examine immediately.Short less than in 3 months, China's top news on the concentrated care being subject to CCTV's media and State Council with elevator, really there is accident potential in China's elevator safety of being impelled to speak, to not administering not all right stage.And the major security risk that China exists with elevator is " car open the door walk 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 Room door and car door are opened, passenger and goods turnover car, now can not get rid of overload, shake and cause service brake braking force not enough, and there is greasy dirt in brake surface, losing efficacy as brake plate wearing and tearing, the aging generation plastic deformation of energy storage Compress Spring etc. appears in drg mechanical part;
Although 2 drgs have enough large braking force, but still overload can be there is, vibrations cause steel rope on the traction sheave due to traction deficiency produce slippage (steel rope and traction sheave contact surface have oil, the length of steel rope time use attenuate cause reduce with traction sheave race contact surface, traction sheave driving surface weares and teares, changes inferior-quality traction sheave etc.); And once braking force is not enough or traction is not enough, by the serious accident caused casualties;
3, frequency converter control unit fault, sends false command and causes enabling to walk terraced accident.
Be necessary thus to propose a kind of brake equipment preventing elevator accidental movement, to solve above-mentioned potential safety hazard.
Utility model content
The utility model object is: provide a kind of brake equipment preventing elevator accidental movement.
First technical scheme of the present utility model is: a kind of brake equipment preventing elevator accidental movement, it comprises: lift wheel, with a pair friction shoe of lift wheel both sides or steel rope wipe contact and to be all connected to friction shoe with this and to make the telescoping mechanism that spacing between two friction shoes is elongated or shorten, wherein this friction shoe has the oblique angle of self-locking, friction shoe is preferably wedge shape or cam, and oblique angle is preferably greater than zero degree and is less than 10 degree.
On the basis of the first technical scheme, comprise following attached technical scheme further:
Also comprise and be arranged on lift wheel side and be provided with the cover plate of guide rail and be connected with friction shoe and along the reciprocating slide block of guide rail, wherein friction shoe is along guide rail movement, and described telescoping mechanism comprises motor, exports connected crank and be connected with crank and the connecting rod be connected with slide block with motor, wherein there is free gap between the two in friction shoe and slide block, and the activity direction of free gap and guide rail bearing of trend perpendicular.
Described telescoping mechanism is electromagnetism, hydraulic pressure, air-actuator, and wherein friction shoe and lift wheel are at axial or tangential or radial direction wipe contact.
Its sensor also comprising the change of detected activity gap and the spring be arranged in free gap.
Second technical scheme of the present utility model is: a kind of brake equipment preventing elevator accidental movement, it comprises: rope sheave, the steel rope arranged around rope sheave, the fixed endpoint being arranged on rope sheave side, can fixed endpoint a pair fork, a pair friction shoe arranged with corresponding fork end that carry out swinging and be all connected with two forks and angle between fork is become greatly or the telescoping mechanism reduced relatively, and wherein friction shoe is eccentric wheel or cam or wedge.
Fixed endpoint is one or two, and friction shoe is increasing its friction force on the clockwise movement direction of steel rope.
3rd technical scheme of the present utility model is: a kind of brake equipment preventing elevator accidental movement, it comprises: lift wheel, be arranged on lift wheel side and be provided with guide rail cover plate, along guide rail movement and with a pair friction shoe of lift wheel or steel rope wipe contact and to be all connected to friction shoe with this and to make the telescoping mechanism that spacing between two friction shoes is elongated or shorten, wherein this friction shoe has the oblique angle of self-locking.
Preferably, described telescoping mechanism comprise the motor be arranged in cover plate, to motor export be connected speed reduction gearing, be connected with speed reduction gearing left and rightly revolve leading screw, be separately positioned on left and right to revolve on leading screw and can a pair screw of straight-line motion, one end shift fork of being set in the spring on corresponding screw and being fixedly connected with spring other end abutting contact and with friction shoe.
The utility model advantage is:
The utility model is provided with independently emergency braking apparatus, prevents steel rope on rope sheave because traction deficiency produces slippage, drives friction shoe to rub to steel rope, avoid Safe Failure, reduce the serious accident of personal casualty by telescoping mechanism.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is the block diagram of the first embodiment in the utility model;
Fig. 2 and Fig. 1 is similar, and its cover plate is removed;
Fig. 3 is the local structural graph that in the utility model, the first embodiment is in an open position;
Fig. 4 is the local structural graph that in the utility model, the first embodiment is in locked position;
Fig. 5 is the local structural graph that in the utility model, the second embodiment is in an open position;
Fig. 6 is the local structural graph that in the utility model, the second embodiment is in locked position;
Fig. 7 is the local structural graph that in the utility model, the 3rd embodiment is in an open position;
Fig. 8 is the local structural graph that in the utility model, the 3rd embodiment is in locked position;
Fig. 9 is the local structural graph that in the utility model, the 4th embodiment is in an open position;
Figure 10 is the local structural graph that in the utility model, the 4th embodiment is in locked position;
Figure 11 is the local structural graph that in the utility model, the 5th embodiment is in an open position;
Figure 12 is the local structural graph that in the utility model, the 5th embodiment is in locked position;
Figure 13 is the local structural graph that in the utility model, the 6th embodiment is in an open position;
Figure 14 is the local structural graph that in the utility model, the 6th embodiment is in locked position;
Figure 15 is the local structural graph of the 7th embodiment in the utility model.
Detailed description of the invention
Embodiment: as Figure 1-4, the utility model provides a kind of the first embodiment preventing the brake equipment of elevator accidental movement, and it comprises: rope sheave 1, the steel rope 2 arranged around rope sheave, be arranged on rope sheave 1 side and be provided with guide rail 32 cover plate 3, along guide rail 32 move and can with a pair friction shoe 4 of steel rope 2 wipe contact, the motor 5 be arranged in cover plate 3, to export the crank 61 be connected, the connecting rod 62 be connected with crank 61 with motor 5 and be fixedly connected with connecting rod 62 and the slide block 34 that can move along guide rail 32.Similarly, connecting rod also directly can be connected with friction shoe 4, and friction shoe 4 does not need to realize moving back and forth by guide rail, and this connecting rod is directly driven by telescoping mechanism, also can realize the utility model object.
Rope sheave 1 can be traction sheave, track adjusting wheel, diversion sheave in elevator device, also the lift wheel of not steel wire rope can be changed into, direct and the lift wheel friction by friction shoe 4, prevent lift wheel from continuing to rotate or reversion, friction shoe is preferably wedge, eccentric wheel or cam, and wherein friction shoe 4 and lift wheel 1 are at axial or tangential or radial direction wipe contact.
Telescoping mechanism comprises motor 5, exports connected crank 61 and be connected and the connecting rod 62 be connected with slide block 34 with crank 61 with motor 5, wherein there is free gap 41 between the two in friction shoe 4 and slide block 34, and the activity direction of free gap 41 and guide rail 32 bearing of trend perpendicular.Similarly, telescoping mechanism can be also electromagnetism, hydraulic pressure, air-actuator, and it comprises other forms of propulsion source and gear unit.
For perceived friction block 4 contacts completely with steel rope 2, namely free gap 41 is almost filled, the utility model preferably includes the sensor 7 that detected activity gap 41 changes, to be arranged in free gap 41 and to support the spring 42 of friction shoe 4 one end, with the connecting element 44 of fixed friction block 4 other end, realize friction shoe 4 one end opposing slider 34 thus and there is the first activity surplus, and there is the second activity surplus in friction shoe 4 other end opposing slider 34, and the first activity surplus is greater than the second activity surplus, second activity surplus can be zero, also zero can be greater than, and connecting element 44 obtains activity surplus by disc spring or spring.
When braking, telescoping mechanism drives friction shoe 4 along straight-line motion, and friction shoe 4 is contacted, now when rope sheave 1 rotates, because rope sheave 1 contacts with friction shoe 4 with rope sheave 1, there is certain friction force, and friction shoe 4 has the oblique angle of self-locking, and oblique angle at 0 degree within the scope of 10 degree, so rope sheave 1 can drive friction shoe 4 to move, cause rope sheave 1 and friction shoe 4 contact force to increase, thus rope sheave 1 is stopped.
As seen in figs. 5-6, the utility model provides a kind of the second embodiment preventing the brake equipment of elevator accidental movement, its structure is substantially identical with the first embodiment, and it comprises: rope sheave 1, the steel rope arranged around rope sheave 1, be arranged on rope sheave 1 side and be provided with guide rail cover plate, along guide rail movement and with steel rope wipe contact and for eccentric a pair friction shoe 40 and can be arranged between friction shoe 40 and the telescoping mechanism 60 be connected.Telescoping mechanism 60 can make spacing between friction shoe 40 elongated or shorten, thus drive friction shoe 40 fully contact with rope sheave 1, stop rope sheave 1 continue rotate and prevent reverse.
As Figure 7-8, the utility model provides a kind of the 3rd embodiment preventing the brake equipment of elevator accidental movement, its structure is substantially identical with first and second embodiment, it comprises: rope sheave 1, the steel rope arranged around rope sheave 1, be arranged on two fixed endpoints on the downside of rope sheave 1, can relatively corresponding fixed endpoint a pair fork 401, a pair friction shoe 400 arranged with corresponding fork 401 end that carry out swinging and be all connected with two forks 401 and angle between fork 401 is become greatly or the telescoping mechanism 60 reduced, wherein friction shoe 400 is wedge.Telescoping mechanism 60 makes angle between fork 401 reduce, and drives friction shoe 400 fully to contact with rope sheave 1 thus, and stop rope sheave 1 continue to rotate and prevent reversion, wherein fork 401 shape and size are all identical.
As shown in figs. 9-10, the utility model provides a kind of the 4th embodiment preventing the brake equipment of elevator accidental movement, its structure is substantially identical with the 3rd embodiment, it comprises: rope sheave 1, the steel rope arranged around rope sheave 1, be arranged on a fixed endpoint 8 on the upside of rope sheave 1, can fixed endpoint 8 a pair fork 402, a pair friction shoe 40 arranged with corresponding fork 402 end that carry out swinging and be all connected with two forks 402 and angle between fork 402 is become greatly or the telescoping mechanism 60 reduced relatively, wherein friction shoe 40 is eccentric wheel.Telescoping mechanism 60 makes angle between fork 402 reduce, and drives friction shoe 40 fully to contact with rope sheave 1 thus, and stop rope sheave 1 continue to rotate and prevent reversion, wherein two fork 402 shape and size are all identical, and two axle center are on fixed endpoint 8.
As depicted in figs. 11-12, the utility model provides a kind of the 5th embodiment preventing the brake equipment of elevator accidental movement, its structure is substantially identical with the 4th embodiment, it comprises: rope sheave 1, the steel rope arranged around rope sheave 1, be arranged on a fixed endpoint 8 on the upside of rope sheave 1, can fixed endpoint 8 a pair fork 402, a pair friction shoe 403 arranged with corresponding fork 402 end that carry out swinging and be all connected with two forks 402 and angle between fork 402 is become greatly or the telescoping mechanism 60 reduced relatively, wherein friction shoe 403 is wedge.Telescoping mechanism 60 makes angle between fork 402 reduce, friction shoe 403 is driven fully to contact with rope sheave 1 thus, rope sheave 1 is stoped to continue to rotate and prevent reversion, and friction shoe 403 is increasing its friction force on the clockwise movement direction of steel rope, wherein two fork 402 shape and size are all identical, and two axle center are on fixed endpoint 8.
As illustrated in figs. 13-14, the utility model provides a kind of the 6th embodiment preventing the brake equipment of elevator accidental movement, its structure is similar to the first embodiment, it comprises: rope sheave, around the steel rope that rope sheave is arranged, be arranged on rope sheave side and be provided with the cover plate 300 of guide rail 302, along guide rail 302 crank motion and with a pair friction shoe 420 of steel rope wipe contact, be arranged on the motor 500 in cover plate 300, the speed reduction gearing 502 be connected is exported with motor 500, the left side be connected with speed reduction gearing 502, dextrorotation leading screw 504, 506, be separately positioned on a left side, dextrorotation leading screw 504, on 506 and can a pair screw 508 of straight-line motion, one end is set in the spring 510 on corresponding screw 508, the shift fork 512 be fixedly connected with spring 510 other end abutting contact and with friction shoe 420, the governing screw 600 be connected with friction shoe 420, and spacing limited screw 602 is carried out to friction shoe 420.Wherein friction shoe 420 is in wedge shape, and surface is provided with friction layer 422.Spring 510 is to keep two friction shoes 420 to be synchronized with the movement, steel rope is not touched once there be the friction shoe of side, the surplus that still has motor 500 continues motion until touch steel rope and stop, and the friction shoe 420 being in locked position is then returned to initial position to remove fault for maintainer by governing screw 600.Rope sheave in the utility model also can change the lift wheel of not steel wire rope into.When motor 500 works thus, left and right for the drive leading screw 504,506 that revolves is rotated, impel screw 508 straight-line motion, and pressuring spring 510 shift fork 512, friction shoe 420 is driven fully to contact with rope sheave thus, stop rope sheave continue to rotate and prevent reversion, friction shoe 420 also can directly contact with rope sheave.Wherein motor 500, speed reduction gearing 502, left and right revolve leading screw 504,506, screw 508, spring 510, shift fork 512 composition the present embodiment jointly telescoping mechanism.
As shown in figure 15, the utility model provides a kind of the 7th embodiment preventing the brake equipment of elevator accidental movement, its structure is similar to the 6th embodiment, difference is only that the telescoping mechanism in the present embodiment have employed the propulsion source of electromagnet form, certain telescoping mechanism also can adopt other forms of propulsion source or gear unit, such as hydraulic pressure, pneumatic power source etc.
Thus, the utility model additionally provides a kind of braking method preventing elevator accidental movement, and it comprises the steps:
S1: the steel rope, a pair friction shoe rubbed mutually with steel rope that provide a kind of rope sheave, arrange around rope sheave and drive the reciprocating telescoping mechanism of friction shoe;
S2: time initial, keep a spacing between two friction shoes, and friction shoe and steel rope exist gap;
S3: during braking, steel rope rotates around rope sheave first direction, telescoping mechanism drives two friction shoes reduce spacing and fit tightly steel rope, friction shoe continues increasing friction force and continues to rotate to stop steel rope and rope sheave and prevent reversion under the drive of rope sheave, because friction shoe fully contacts with steel rope, drive steel rope also fully to contact with rope sheave, prevent steel rope from skidding, ensure safety.
Certain above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the Spirit Essence of the utility model main technical schemes or modification, all should be encompassed within protection domain of the present utility model.
Claims (8)
1. one kind prevents the brake equipment of elevator accidental movement, it is characterized in that it comprises: lift wheel (1), with a pair friction shoe (4) of lift wheel (1) both sides or steel rope (2) wipe contact and to be all connected to friction shoe (4) with this and to make the telescoping mechanism that spacing between two friction shoes (4) is elongated or shorten, wherein this friction shoe (4) has the oblique angle of self-locking.
2. a kind of brake equipment preventing elevator accidental movement as claimed in claim 1, characterized by further comprising and be arranged on lift wheel (1) side and the cover plate (3) being provided with guide rail (32), and to be connected with friction shoe (4) and along guide rail (32) reciprocating slide block (34), wherein friction shoe (4) moves along guide rail (32), and described telescoping mechanism comprises motor (5), the crank (61) be connected is exported with motor (5), and be connected and the connecting rod (62) be connected with slide block (34) with crank (61), wherein there is free gap (41) between the two in friction shoe (4) and slide block (34), and the activity direction of free gap (41) and guide rail (32) bearing of trend perpendicular.
3. a kind of brake equipment preventing elevator accidental movement as claimed in claim 1, it is characterized in that: described telescoping mechanism is electromagnetism, hydraulic pressure, air-actuator, wherein friction shoe (4) and lift wheel (1) are at axial or tangential or radial direction wipe contact.
4. a kind of brake equipment preventing elevator accidental movement as claimed in claim 2, is characterized in that it also comprises the sensor (7) that detected activity gap (41) changes and the spring (42) be arranged in free gap (41).
5. one kind prevents the brake equipment of elevator accidental movement, it is characterized in that it comprises: rope sheave (1), around the steel rope (2) that rope sheave (1) is arranged, be arranged on the fixed endpoint (8) of rope sheave (1) side, relatively can carry out a pair fork (401 of swinging by fixed endpoint (8), 402), with corresponding fork (401, 402) a pair friction shoe (40 of end setting, 400, 403), and with two forks (401, 402) be all connected and make fork (401, 402) between, angle becomes telescoping mechanism that is large or that reduce, wherein friction shoe (40, 400, 403) be eccentric wheel, or cam, or wedge.
6. a kind of brake equipment preventing elevator accidental movement as claimed in claim 5, it is characterized in that: described fixed endpoint (8) is one or two, and friction shoe is increasing its friction force on the clockwise movement direction of steel rope.
7. one kind prevents the brake equipment of elevator accidental movement, it is characterized in that it comprises: lift wheel, be arranged on lift wheel side and be provided with guide rail (302) cover plate (300), along guide rail (302) and with a pair friction shoe (420) of lift wheel or steel rope wipe contact and to be all connected to friction shoe (420) with this and to make the telescoping mechanism that spacing between two friction shoes (420) is elongated or shorten, wherein this friction shoe (4) has the oblique angle of self-locking.
8. a kind of brake equipment preventing elevator accidental movement as claimed in claim 7, it is characterized in that: described telescoping mechanism is arranged on the motor (500) in cover plate (300), the speed reduction gearing (502) be connected is exported with motor (500), the left side be connected with speed reduction gearing (502), dextrorotation leading screw (504, 506), be separately positioned on a left side, dextrorotation leading screw (504, 506) upper and can a pair screw (508) of straight-line motion, one end is set in the spring (510) on corresponding screw (508), and the shift fork (512) to be fixedly connected with spring (510) other end abutting contact and with friction shoe (420).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884139.7U CN205132804U (en) | 2015-11-09 | 2015-11-09 | Prevent unexpected arresting gear who removes of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884139.7U CN205132804U (en) | 2015-11-09 | 2015-11-09 | Prevent unexpected arresting gear who removes of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205132804U true CN205132804U (en) | 2016-04-06 |
Family
ID=55618618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884139.7U Expired - Fee Related CN205132804U (en) | 2015-11-09 | 2015-11-09 | Prevent unexpected arresting gear who removes of elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205132804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217402A (en) * | 2015-11-09 | 2016-01-06 | 苏州博量传动设备有限公司 | Prevent brake equipment and the method for elevator accidental movement |
| CN112479031A (en) * | 2021-01-14 | 2021-03-12 | 江苏江达机械制造有限公司 | Gravity tensioning structure at tail part of lifter |
-
2015
- 2015-11-09 CN CN201520884139.7U patent/CN205132804U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217402A (en) * | 2015-11-09 | 2016-01-06 | 苏州博量传动设备有限公司 | Prevent brake equipment and the method for elevator accidental movement |
| CN112479031A (en) * | 2021-01-14 | 2021-03-12 | 江苏江达机械制造有限公司 | Gravity tensioning structure at tail part of lifter |
| CN112479031B (en) * | 2021-01-14 | 2024-05-17 | 江苏江达机械制造有限公司 | Gravity tensioning structure at tail of elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20181109 |