CN101927928B - Braking device of elevator - Google Patents
Braking device of elevator Download PDFInfo
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- CN101927928B CN101927928B CN 201010213185 CN201010213185A CN101927928B CN 101927928 B CN101927928 B CN 101927928B CN 201010213185 CN201010213185 CN 201010213185 CN 201010213185 A CN201010213185 A CN 201010213185A CN 101927928 B CN101927928 B CN 101927928B
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- braking
- parallel
- arm
- brake component
- brake
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Abstract
The invention provides a braking device of an elevator for making a braking surface of a braking member for surface contact with a guide rail reliably, wherein a braking part (17), supported by end parts of a braking arm (12) and an operation arm (14), comprises the braking members (17a) which are arranged in a pair and move upward in the lowering movement of an elevator cabin and move downward in rising movement of the elevator cabin by a frictional force when the braking members are pressed to the guide rail, and provided with two slants (17a1,17a2) which forms a V-shaped side surface on a surface opposite to the braking surface and a parallel surface (17a3) parallel to the extension direction of the guide rail and interposed between the slants; an operation parallel body which is supported by the end part of the operation arm and provided with a parallel surface (17c1) abutting against the parallel surface of the braking member, during movement of the braking member to the direction of the guide rail, holding the parallel surface of the braking member to abut against the parallel surface of the operation parallel body to prevent the braking member from inclination.
Description
Technical field
The present invention relates to a kind of brake device of elevator, relate in particular to a kind of when rising or falling speed has surpassed specified value or when lifting body travels with no-console condition, the brake device of elevator that uses actuator that this lifting body is braked.
Background technology
In the brake equipment that known use actuator is braked lifting body, following brake equipment is for example arranged, it has actuator and brake component, this actuator has the action force that can overcome elastic force, and its power supply can disconnect under defined terms, when this brake component is disconnected at the power supply of this actuator, under the effect of elastic force with the guide rail moving contact, thereby lifting body slowed down and stop.In addition, also can exemplify out device that similar actuator will be had when having surpassed specified value at rising or falling speed or situation that the brake equipment of when lifting body travels with no-console condition lifting body being braked uses.
But, in above-mentioned brake equipment, owing to making brake component and guide rail carry out moving contact by elastic force and with this lifting body being stopped, therefore elastic force need to being set as more than the certain value.On the other hand, when lifting body moves normally, for the brake component that will be applied with all the time the elastic force load remains on open state, need to make actuator have the action force that can overcome elastic force.Therefore, existing needs to use high-capacity actuator, thereby causes the problem that device maximizes and setup fee increases.In addition, have the power that can overcome elastic force in order to make actuator, need between brake component and guide rail, guarantee enough gaps, thereby need further to increase the capacity of actuator.
In order to address the above problem, a kind of brake equipment is for example disclosed in patent documentation 1, this brake equipment is provided with brake component and armature, this brake component is formed the chock shape, the friction force that produces when being pressed against on the guide rail, when lifting body moves downwards, the brake component of this chock shape is moved upward, when lifting body is moved upward, the brake component of this chock shape is mobile downwards, this armature is formed with two inclined-planes of the side view that consists of V-shape, is used for brake component is clamped between itself and the guide rail.In addition, in this brake equipment, when the power supply of actuator is cut off, by pitman action that brake component moves towards the braking position direction is applied on the brake component with the guide rail moving contact with spring with pressing force and is configured to respectively separately independently structure with the braking that obtains suitable braking force with spring, the action elastic force of spring can be dwindled thus, and then the capacity (for example with reference to patent documentation 1) of actuator can be reduced.
Patent documentation 1: TOHKEMY 2007-277013 communique (paragraph numbering 0029～0035, Fig. 5)
But, in above-mentioned prior art, owing to adopted by a pin brake component is bearing in structure on the pitman, so move in the process of guide rail at brake component, brake component can appear at the situation that hand of rotation moves.Thus, when inclination had appearred in brake component, brake component can not carry out face with guide rail and contact, thereby had the problem that can't stably obtain braking force.
Summary of the invention
The present invention makes in view of existing actual state in the above-mentioned prior art, the object of the present invention is to provide a kind of brake surface of brake component that can make to carry out the brake device of elevator that face contacts with guide rail reliably.
To achieve these goals, brake device of elevator involved in the present invention is used for the lifting body that is carried out lifting by rail guidance is carried out emergency braking, it has: the braking arm, described braking arranges in mutual opposed mode in pairs with arm, and is configured to be rotated take axle as fulcrum; The braking spring, it is arranged on described braking with between the arm; Moving actuation arm, described moving actuation arm arranges in pairs in mutual opposed mode, and is arranged to and can be rotated take axle as fulcrum; Action spring and actuator, they are arranged between the described moving actuation arm; Detent, described detent is by described braking each overhang bracket with arm and described moving actuation arm, described brake device of elevator is characterised in that, described detent has brake component, action is used clinohedral with parallel body with braking, described brake component arranges in pairs, and by the friction force that produces when being pressed on the described guide rail, descend at described lifting body and to be moved upward when mobile, it is mobile downwards when mobile to rise at described lifting body, and, being formed with side view at the face of the opposition side of brake surface consists of two inclined-planes of V-shape and is arranged between described two inclined-planes and the parallel faces parallel with the bearing of trend of described guide rail, described action uses parallel body by the overhang bracket of described moving actuation arm, and be formed with the parallel faces that the described parallel faces with described brake component connects, described braking by the overhang bracket of described braking with arm, and is formed with respectively two inclined-planes with each inclined-plane almost parallel of described brake component with clinohedral.
In having the brake device of elevator of the present invention of said structure, when normal operation, under the state that the parallel faces of brake component and action connect with the parallel faces of parallel body, brake component is maintained on the position that separates with guide rail.When the power supply of actuator was disconnected, with under the elastic force effect of spring, action was moved with parallel body direction guiding rail direction in action, and brake component is pressed against on the guide rail when keeping its parallel faces and action with the butt state between the parallel faces of parallel body.After this, descend when mobile at lifting body, brake component is moved upward along the parallel faces of action with parallel body first under the effect of friction force, then be moved upward along the inclined-plane of braking with clinohedral, rise when mobile at lifting body, brake component is mobile downwards with the parallel faces of parallel body along action first under the effect of friction force, and is then mobile downwards with the inclined-plane of clinohedral along braking.After this, under the effect of braking with the elastic force of spring, brake component is pressed against on the guide rail with suitable pressing force with clinohedral by braking, thereby obtains braking force.So, owing to form parallel faces by the face at the opposition side of the brake surface of brake component, and under the state that this parallel faces and action connect with the parallel faces of parallel body, brake component direction guiding rail direction is moved, so brake component can run-off the straight when mobile above-mentioned, can make thus the brake surface of brake component carry out face with guide rail reliably and contact.
The invention effect
According to the present invention, can make reliably the brake surface of brake component carry out face with guide rail and contact, thus, each position is moved, thereby can obtain stable braking force.
Description of drawings
Fig. 1 is the elevator structure figure that schematically represents the setting position of brake equipment of the present invention.
Fig. 2 is the main portion birds-eye view that schematically represents an embodiment of brake device of elevator involved in the present invention.
Fig. 3 is the main portion front view that schematically represents the brake equipment of present embodiment.
Fig. 4 is the main portion front view of the state when representing schematically that brake component contacts with guide rail.
Fig. 5 is the main portion birds-eye view of the state when representing schematically that brake component contacts with guide rail.
Fig. 6 represents that schematically unusual brake component when mobile of descending is pressed against on the guide rail and is moved upward the main portion front view of state midway.
Fig. 7 represents that schematically unusual brake component when mobile of descending is pressed against on the guide rail and moves to the main portion front view of the state of top.
Fig. 8 is the main portion birds-eye view that schematically is illustrated in unusual state when brake component is pressed against on the guide rail when mobile.
Fig. 9 is that brake component is pressed against on the guide rail and the main portion front view of mobile state midway downwards when representing schematically that abnormal ascending moves.
Figure 10 is that brake component is pressed against on the guide rail and moves to the main portion front view of the state of below when representing schematically that abnormal ascending moves.
Nomenclature
1 Machine Room
2 rope sheaves
3 hoist cables
4 lift cars
5 counterbalanceds weight
6 hoist trunks
7 lift car side rails
8 counterbalanced weight side rails
10 brake equipments
11 axles
12 braking arms
13 braking springs
14 moving actuation arm
15 action springs
16 actuators
17 detent
The 17a brake component
17a1,17a2 inclined-plane
The 17a3 parallel faces
The 17b axle
17c action parallel body
The 17c1 parallel faces
The 17d axle
17e braking clinohedral
17e1,17e2 inclined-plane
The specific embodiment
Embodiment to brake device of elevator of the present invention describes referring to accompanying drawing.
As shown in Figure 1, in elevator, winch is arranged in the Machine Room 1, and hoist cable 3 is wound on the rope sheave 2 of this winch, and lift car 4 is connected with counterbalanced weight and is connected with the two ends of hoist cable 3 respectively.In hoist trunk 6, lift car 4 is guided by lift car side rails 7, and counterbalanced weight 5 is guided by counterbalanced weight side rails 8, and rope sheave 2 rotations by making winch make lift car 4 and counterbalanced weight 5 carry out lifting in hoist trunk 6.The brake equipment 10 of present embodiment is by the not shown top that is bolted to lift car 4.
As shown in Figures 2 and 3, the brake equipment 10 of present embodiment has: braking arm 12, and this braking arranges in mutual opposed mode in pairs with arm 12, and is configured to be rotated take axle 11 as fulcrum; Be arranged on the braking spring 13 between the described braking usefulness arm 12; Moving actuation arm 14, this moving actuation arm 14 arranges in mutual opposed mode in pairs in the inboard of braking with arm 12, and is configured to be rotated take axle 11 as fulcrum; Action spring 15 and actuator 16, they are arranged between the described moving actuation arm 14; Detent 17, this detent 17 is by braking each overhang bracket with arm 12 and moving actuation arm 14.
In the present embodiment, when normal operation, actuator 16 energisings, as shown in Figures 2 and 3, this actuator 16 overcomes the elastic force that moves with spring 15 and brake component 17a is remained on the state that separates with lift car side rails 7.At this moment, as shown in Figure 3, the parallel faces 17a3 of brake component 17a and the parallel faces 17c1 that moves with parallel body 17c are in the state that connects, and, the upper surface of brake component 17a and the part of lower surface are the braking inwall of clinohedral 17e of コ word shape against cross sectional shape, thereby are maintained on the position of regulation.At this moment, for example after the unusual decline that not shown speed detector detects lift car 4 is moved, 10 output electrical signals from this speed detector to brake equipment, the electric current that brake equipment 10 cuts off flow toward actuator 16.By cutting off the power supply of this actuator 16, as shown in Figure 4 and Figure 5, use the elastic force of spring 15 by being arranged on the action of moving between the actuation arm 14, moving actuation arm 14 is rotated take axle 11 as fulcrum, action by the overhang bracket of this moving actuation arm 14 is moved towards lift car side rails 7 directions with parallel body 17c, and brake component 17a is pressed against on the lift car side rails 7 when keeping its parallel faces 17a3 and moving with the butt state between the parallel faces 17c1 of parallel body 17c.After this, when lift car 4 descends, under the state that is pressed against on the lift car side rails 7, brake component 17a is under the effect of friction force, be moved upward along the parallel faces 17c1 of action with parallel body 17c at first as shown in Figure 6, then move towards the top along the inclined-plane 17e2 of braking with clinohedral 17e as shown in Figure 7.So, by brake component 17a is embedded between lift car side rails 7 and the inclined-plane 17e2 of braking with clinohedral 17e, as shown in Figure 8, braking is rotated take axle 11 as fulcrum with arm 12, simultaneously, brake component 17a is by being arranged on braking with the spring force of the braking between the arm 12 with spring 13, by with suitable pressing force by being pressed on the lift car side rails 7, thereby lift car 4 is braked.
On the other hand, when not shown speed detector detected the abnormal ascending of lift car 4, this speed detector was to brake equipment 10 output electrical signals, and brake equipment 10 disconnects the electric current of flow toward actuator 16.By disconnecting the power supply of this actuator 16, as shown in Figure 4 and Figure 5, use the elastic force of spring 15 by being arranged on the action of moving between the actuation arm 14, moving actuation arm 14 is rotated take axle 11 as fulcrum, action by the overhang bracket of this moving actuation arm 14 is moved towards lift car side rails 7 directions with parallel body 17c, and brake component 17a is pressed against on the lift car side rails 7 when keeping its parallel faces 17a3 and moving with the state that connects between the parallel faces 17c1 of parallel body 17c.After this, when lift car 4 rises, under the state that is pressed against on the lift car side rails 7, brake component 17a is under the effect of friction force, mobile downwards with the parallel faces 17c1 of parallel body 17c along action at first as shown in Figure 9, then mobile downwards with the inclined-plane 17e1 of clinohedral 17e along braking as shown in figure 10.So, by brake component 17a is embedded between lift car side rails 7 and the inclined-plane 17e1 of braking with clinohedral 17e, as shown in Figure 8, braking is rotated take axle 11 as fulcrum with arm 12, simultaneously, brake component 17a is by being arranged on braking with the spring force of the braking between the arm 12 with spring 13, with suitable pressing force by being pressed on the lift car side rails 7, thereby lift car 4 is braked.
According to present embodiment, form parallel faces 17a3 by the face at the opposition side of the brake surface of brake component 17a, and under the state that this parallel faces 17a3 and action connect with the parallel faces 17c1 of parallel body 17c, brake component 17a is moved to the direction of lift car side rails 7, so brake component 17a can run-off the straight when mobile above-mentioned, contact thereby can make the brake surface of brake component 17a carry out face with lift car side rails 7 reliably.Thus, each position is moved, thereby can obtain stable braking force.
Claims (1)
1. brake device of elevator, it is used for the lifting body that is carried out lifting by rail guidance is carried out emergency braking, and it has:
Arm is used in braking, and described braking arranges in mutual opposed mode in pairs with arm, and is configured to be rotated take axle as fulcrum;
The braking spring, it is arranged on described braking with between the arm;
Moving actuation arm, described moving actuation arm arranges in pairs in mutual opposed mode, and is arranged to and can be rotated take axle as fulcrum;
Action spring and actuator, they are arranged between the described moving actuation arm;
Detent, described detent be by described braking each overhang bracket with arm and described moving actuation arm,
Described brake device of elevator is characterised in that,
Described detent has brake component, action parallel body and braking clinohedral,
Described brake component arranges in pairs, and the friction force that the brake surface by this brake component produces when being pressed on the described guide rail, descend at described lifting body and to be moved upward when mobile, it is mobile downwards when mobile to rise at described lifting body, and, being formed with side view at the face of the opposition side of described brake surface consists of two inclined-planes of V-shape and is arranged between described two inclined-planes and the parallel faces parallel with the bearing of trend of described guide rail
Described action is with the overhang bracket of parallel body by described moving actuation arm, and is formed with the parallel faces that the described parallel faces with described brake component connects,
Described braking by the overhang bracket of described braking with arm, and is formed with respectively two inclined-planes with each inclined-plane almost parallel of described brake component with clinohedral.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009144313A JP5189034B2 (en) | 2009-06-17 | 2009-06-17 | Elevator braking device |
| JP2009-144313 | 2009-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101927928A CN101927928A (en) | 2010-12-29 |
| CN101927928B true CN101927928B (en) | 2013-04-10 |
Family
ID=43367429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010213185 Active CN101927928B (en) | 2009-06-17 | 2010-06-12 | Braking device of elevator |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5189034B2 (en) |
| CN (1) | CN101927928B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102730512A (en) * | 2012-06-20 | 2012-10-17 | 卡姆丹克太阳能（江苏）有限公司 | Gradual elevator safety tong |
| JP2016037336A (en) * | 2014-08-06 | 2016-03-22 | 株式会社日立製作所 | Elevator device and hoist for elevator device |
| CN105712154B (en) * | 2016-03-23 | 2018-06-26 | 安徽瑞格电梯服务股份有限公司 | A kind of novel elevator falling guard equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219496A (en) * | 1997-11-06 | 1999-06-16 | 奥蒂斯电梯公司 | Elevator safety brake having fused sprayed friction coating |
| CN2575071Y (en) * | 2002-10-19 | 2003-09-24 | 刘兰珍 | Dynamic apparatus for lift |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| WO2006064555A1 (en) * | 2004-12-15 | 2006-06-22 | Mitsubishi Denki Kabushiki Kaisha | Elevator emergency stop device |
| JP2007277013A (en) * | 2007-05-24 | 2007-10-25 | Mitsubishi Electric Corp | Elevator emergency brake device and elevator stopping method |
| CN101112955A (en) * | 2006-07-27 | 2008-01-30 | 东芝电梯株式会社 | Elevator emergency nraking device and elevator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109140U (en) * | 1979-01-25 | 1980-07-31 | ||
| GB2252545A (en) * | 1991-02-06 | 1992-08-12 | Poon Otto L | Bi-directional safety brake for elevator |
| JP2004224492A (en) * | 2003-01-22 | 2004-08-12 | Fujitec Co Ltd | Elevator device |
| WO2007102211A1 (en) * | 2006-03-08 | 2007-09-13 | Mitsubishi Denki Kabushiki Kaisha | Emergency stop device for elevator |
| JP2009046274A (en) * | 2007-08-22 | 2009-03-05 | Mitsubishi Electric Building Techno Service Co Ltd | Hoisting/lowering preventive device and elevator device |
-
2009
- 2009-06-17 JP JP2009144313A patent/JP5189034B2/en active Active
-
2010
- 2010-06-12 CN CN 201010213185 patent/CN101927928B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219496A (en) * | 1997-11-06 | 1999-06-16 | 奥蒂斯电梯公司 | Elevator safety brake having fused sprayed friction coating |
| CN2575071Y (en) * | 2002-10-19 | 2003-09-24 | 刘兰珍 | Dynamic apparatus for lift |
| CN2721586Y (en) * | 2004-05-24 | 2005-08-31 | 宁波申菱电梯配件有限公司 | Bidirectional speed limited safety pliers for elevator |
| WO2006064555A1 (en) * | 2004-12-15 | 2006-06-22 | Mitsubishi Denki Kabushiki Kaisha | Elevator emergency stop device |
| CN101112955A (en) * | 2006-07-27 | 2008-01-30 | 东芝电梯株式会社 | Elevator emergency nraking device and elevator |
| JP2007277013A (en) * | 2007-05-24 | 2007-10-25 | Mitsubishi Electric Corp | Elevator emergency brake device and elevator stopping method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5189034B2 (en) | 2013-04-24 |
| CN101927928A (en) | 2010-12-29 |
| JP2011001150A (en) | 2011-01-06 |
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