CN105565104B - Elevator governor - Google Patents
Elevator governor Download PDFInfo
- Publication number
- CN105565104B CN105565104B CN201510973440.XA CN201510973440A CN105565104B CN 105565104 B CN105565104 B CN 105565104B CN 201510973440 A CN201510973440 A CN 201510973440A CN 105565104 B CN105565104 B CN 105565104B
- Authority
- CN
- China
- Prior art keywords
- centering block
- rope sheave
- rotary table
- wheel
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
- B66B3/002—Indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention discloses a kind of elevator governors, including mounting base and rack, sheave shaft is provided in the rack, braked wheel is provided on the sheave shaft, the braked wheel side is provided with rotary table, rope sheave is arranged on the rotary table, rope sheave and braked wheel split settings, rope sheave side is corresponded on the rotary table is additionally provided with the friction plate for squeezing rope sheave, the friction plate is provided with two pieces, two pieces of friction plates are located at the two sides of rope sheave, the end of the rotary table is provided with external screw thread, the nut with external screw thread cooperation is provided on rotary table, it is additionally provided on the rotary table and squeezes spring and brake(-holder) block, the brake(-holder) block is tightly attached on the friction plate of nut side, spring is squeezed between nut and brake(-holder) block, the present invention is in overspeed, rope sheave will not stop motion at once, but reduction of speed slowly rotates, make wirerope always It is moved synchronously with rope sheave, makes that sliding friction will not occur between wirerope and rope sheave, and then prevent steel rope abrasion serious.
Description
Technical field
The invention belongs to limiter of speed field, more specifically to a kind of elevator governor.
Background technique
Elevator governor is one of the safety con-trol part in elevator safety protection system.When elevator in operation no matter
Which kind of reason makes carriage exceed the speed limit, or even the danger fallen, and the inoperative feelings of every other safety guard
Under condition, then linkage action occurs for limiter of speed and safety tongs, stops lift car.
Application No. is 200420005455.4 Chinese patents to disclose a kind of Bidirectional elevator overspeed governor, including rope sheave, rope
The side of wheel has brake disc, and multiple breaker slots and multiple raised cambered surfaces, rope sheave installation are circumferentially equipped in the outer circle of brake disc
On sheave shaft, sheave shaft is installed in rotation on the middle part of rack, and what the top of rack can be swung is equipped with centering block, centering block one end
Bottom be equipped with aluminium wheel with being able to rotate, aluminium wheel is matched with the raised cambered surface, and one end utilization that centering block is equipped with aluminium wheel pulls down
The spring stretched is connected with the base, and the bottom of the centering block other end is equipped with pawl, and the top of pawl is equipped with switch and makes bar, makes
Pawl is matched with the breaker slot, and the rack is equipped with snap switch, and the contact of snap switch beats bar phase with the switch
Cooperation, each breaker slot are swallow-tail form, and the pawl is swallow-tail form corresponding with the braking groove shape.The purpose is to
It a kind of elevator to hypervelocity raising and lowering is provided can issue braking and electric signal and carry out mechanical braking.
When being reused in above-mentioned patent, rope sheave and disc rotation, the raised cambered surface on aluminium wheel and brake disc on centering block
Friction, under the action of extension spring, aluminium wheel is moved along raised cambered surface outer ring, so that centering block be driven to do harmonic moving, works as rope sheave
When rotation speed is more than setting speed, under the influence of centrifugal force, centering block corresponds to aluminium wheel side and jumps up, so that the system of centering block
Pawl is flapped toward at the breaker slot of brake disc, and then is embedded in breaker slot and is braked to brake disc and rope sheave, and the steel on rope sheave is made
Cord and rope sheave generate friction, keep elevator out of service to lift safety tongs movement.
There are still following technical problems for above-mentioned patent:
1, in elevator overspeed, the pawl on centering block rotate the two can not directly by brake disc and Multiple disc brake,
Speed at once near zero, since elevator is in hypervelocity, inertia is larger, can not stop at once, and the inertia of elevator will drive steel wire
Rope continues to rotate, and wirerope will rub in rope sheave, wirerope and rope sheave serious wear, or even is directly broken.
2, since aluminium wheel is always with the raised cambered surface associated movement in brake disc, aluminium wheel belt movable pendulum block does harmonic moving,
When elevator overspeed, whether centering block jumps up the coefficient of elasticity of extension spring that centering block is connected of placing one's entire reliance upon because of centrifugal force, but not
Setting speed with elevator used in occasion is different, so that producer must be according to actual use occasion in production
And the spring of corresponding coefficient of elasticity is replaced, limiter of speed is more complicated component, and it is all very inconvenient to disassemble and install, and is putting
Components near block are smaller, are easily lost.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of elevators in overspeed, and rope sheave will not stop at once
Movement, but reduction of speed slowly rotates, and moves synchronously wirerope with rope sheave always, makes to occur between wirerope and rope sheave
Sliding friction, and then prevent the serious elevator governor of steel rope abrasion.
To achieve the above object, the present invention provides the following technical scheme that a kind of elevator governor, including mounting base and
Rack is provided with sheave shaft in the rack, braked wheel is provided on the sheave shaft, the braked wheel side is provided with circle
Platform is arranged with rope sheave, rope sheave and braked wheel split settings on the rotary table, corresponded on the rotary table rope sheave side be additionally provided with it is crowded
The friction plate of press rope wheel.
The further friction plate is provided with two pieces, and two pieces of friction plates are located at the two sides of rope sheave.
The end of the further rotary table is provided with external screw thread, and the nut with external screw thread cooperation, institute are provided on rotary table
It states to be additionally provided on rotary table and squeezes spring and brake(-holder) block, the brake(-holder) block is tightly attached on the friction plate of nut side, is squeezed
Spring is between nut and brake(-holder) block.
The further extruding spring is disk spring.
Sine wheel is installed on the further braked wheel, centering block is provided in the rack, is arranged in the rack
There is the balance staff of connection centering block, centering block is rotated around balance staff, and described centering block one end is provided with the idler wheel with sine wheel cooperation, the centering block
The other end be provided with the pawl with braked wheel cooperation, one end that idler wheel is corresponded on the centering block is provided with extension spring, institute
It states extension spring both ends to be separately fixed on centering block and rack, internal screw thread is offered on the centering block, is worn in the internal screw thread of centering block
Equipped with bolt, bolt penetrates extension spring, and the bolt penetrates extension spring one end and is provided with the limit for adjusting extension spring screw pitch
Bit slice, the diameter of the limit film are greater than the diameter of extension spring.
The further bolt and limit film are rotatablely connected.
The pawl side that centering block is corresponded in the further rack is provided with the switch controlled by centering block, the switch
For the switch of elevator safety loop.
The further sheave shaft side is provided with encoder.
It is provided with light-emitting diode display in the further rack, is connected with signal between the light-emitting diode display and encoder
Line.
The further rack includes left support and right support, the braked wheel between left support and right support,
The rotary table is located at braked wheel close to left support side, the sine wheel is located at braked wheel close to right support side, the centering block
On right support.
Compared with prior art, the beneficial effects of the present invention are:
1, rope belt running rope wheel rotates, and braked wheel is rotated with rope sheave under frictional force effect, makees in extension spring
Under, idler wheel is moved along sine wheel outer ring, so that centering block be driven to do harmonic moving around balance staff；When rope sheave hypervelocity, in centrifugal force
Under the action of centering block correspond to idler wheel side and jump up, then centering block, which corresponds to, makes braked wheel stop turning in the braking in a turn wheel of pawl side
Dynamic, trigger switch cuts off elevator safety loop at the same time, after braked wheel stops operating, if elevator is continued to move by inertia, then
Rope belt running rope wheel continues to rotate, and rope sheave then rubs with the friction plate of its two sides, and friction plate slows down to rope sheave, together
When wirerope and rope sheave generate frictional force lifting safety tongs movement and keep elevator out of service, in the process wirerope always with rope
Wheel rotates synchronously, and fricton-tight friction avoids being seriously worn for wirerope, and the design of double friction plates makes rope sheave two sides uniform force,
Reach balance.
2, when braked wheel is braked stopping, sheave shaft synchronization connected to it stops operating immediately, and encoder will at this time
It records the speed of sheave shaft and is transferred on light-emitting diode display, maintenance personnel is directly read data and done by light-emitting diode display to be remembered
Record.
3, the degree of disk spring is squeezed by adjusting nut, the frictional force between friction plate and rope sheave is adjusted, by rubbing
The change for wiping power can be changed when braked wheel stops operating, slowing effect of the friction plate to rope sheave；And after a period of use, it rubs
Pad has certain abrasion, can squeeze disk spring by nut, frictional force between friction plate and rope sheave is made to restore normal condition.
4, butterfly spring at work, force direction along sheave shaft axis direction, compared to helical spring or its
It will not twist for his type spring in force or component, disk spring then make each position on friction plate circumferencial direction
Stress is identical, and friction plate contacts uniformly with rope sheave.
5, numerical value difference is set according to the hypervelocity of different occasion elevators, by the bolt of circumgyration stretch spring position, makes spiral shell
Bolt drives limit film to be moved along extension spring axial-movement, and limit film will drive limit film between bolt head
Extension spring moved, and then change the screw pitch that extension spring is left part, change its elasticity, and then centering block is made to jump completely
The required power being subject to changes when rising, and setting means is easy.
Detailed description of the invention
Fig. 1 is the main view direction structural schematic diagram of elevator governor of the present invention；
Fig. 2 is the cross section view in Fig. 1 at A-A；
Fig. 3 is the enlarged drawing in the portion B in Fig. 2；
Fig. 4 is the fit structure schematic diagram in the present invention between braked wheel, sine wheel and centering block.
Appended drawing reference: 1, mounting base；2, right support；3, encoder；4, sheave shaft；5, bearing block；6, centering block；7, it puts
Axis；8, light-emitting diode display；9, extension spring；10, idler wheel；11, rope sheave；12, sine wheel；13, friction plate；14, brake(-holder) block；15, dish
Shape spring；16, nut；17, braked wheel；18, left support；19, switch bracket；20, it switchs；23, bolt；25, limit film；26,
Pawl.
Specific embodiment
It is described further referring to figs. 1 to embodiment of the Fig. 4 to elevator governor of the present invention.
A kind of elevator governor, including mounting base 1 and rack, rack include left support 18 and right support 2, the left branch
It is provided with sheave shaft 4 between frame 18 and right support 2, braked wheel 17, braked wheel 17 and sheave shaft 4 are provided on the sheave shaft 4
Between for interference fit, the braked wheel 17 is provided with rotary table towards 18 side of left support, rope sheave 11 is arranged on the rotary table,
Rope sheave 11 and 17 split settings of braked wheel correspond to the friction plate that 11 side of rope sheave is additionally provided with extruding rope sheave 11 on the rotary table
13, the friction plate 13 is provided with two pieces, and two pieces of friction plates 13 are located at the two sides of rope sheave 11, the end of the rotary table
It is provided with external screw thread, the nut 16 with external screw thread cooperation is provided on rotary table, is additionally provided on the rotary table and squeezes spring and system
Movable plate 14, the brake(-holder) block 14 are tightly attached on the friction plate 13 of 16 side of nut, are squeezed spring and are located at nut 16 and braking
Between piece 14, the preferred extruding spring is disk spring 15, and the friction plate 13 close to right support 2 is fixed on braked wheel 17
Side, the friction plate 13 close to left support 18 are fixed on brake(-holder) block 14.
Sine wheel 12 is installed on the preferred braked wheel 17, sine wheel 12 is located at braked wheel 17 close to right support 2 one
Side is provided with centering block 6 on the right support 2, the balance staff 7 of connection centering block 6 is provided on the right support 2, centering block 6 is around balance staff 7
Rotation, described 6 one end of centering block are provided with the idler wheel 10 cooperated with sine wheel 12, and the other end of the centering block 6 is provided with and brakes
The pawl 26 of 17 cooperations is taken turns, one end that idler wheel 10 is corresponded on the centering block 6 is provided with extension spring 9,9 liang of the extension spring
End is separately fixed on centering block 6 and right support 2, and internal screw thread is offered on the centering block 6, is equipped with spiral shell in the internal screw thread of centering block 6
Bolt 23, bolt 23 penetrate extension spring 9, and the bolt 23 penetrates 9 one end of extension spring and is provided with adjusting 9 screw pitch of extension spring
Limit film 25, the diameter of the limit film 25 are greater than the diameter of extension spring 9, and the bolt 23 is rotatablely connected with limit film 25,
26 side of pawl that centering block 6 is corresponded on the right support 2 is provided with the switch 20 controlled by centering block 6, and the switch 20 is electricity
The switch 20 of terraced safety return circuit is additionally provided with the switch bracket 19 for placing switch 20 on right support 2.
Preferred 4 right end of sheave shaft stretches out right support 2, and sheave shaft 4 stretches out 2 side of right support and is provided with encoder 3,
Encoder 3 and sheave shaft 4 are coaxial, for recording speed when sheave shaft 4 stops, being provided with light-emitting diode display 8, institute in the rack
It states and is connected with signal wire between light-emitting diode display 8 and encoder 3.
It is preferably provided with bearing block 5 on left support 18 and right support 2, bearing, sheave shaft are provided in bearing block 5
4 are fixed across two bearings.
The working principle of the invention is, before carrying out use, nut 16 first in rotating round table is squeezed by nut 16
Disk spring 15 is pressed, changes the frictional force between friction plate 13 and rope sheave 11, makes the frictional force between friction plate 13 and rope sheave 11
Less than the frictional force between wirerope and rope sheave 11, and when braked wheel 17 is not braked, makes rubbing between friction plate 13 and rope sheave 11
Power is wiped to be enough that braked wheel 17 is driven to be freely rotated；Adjust the bolt 23 of 6 position of centering block, adjustment limit film 25 to bolt 23 1
The distance between end changes the screw pitch of extension spring 9, and when rope sheave 11 being made to exceed the speed limit, under the action of the centrifugal force, centering block 6 is enough to shake off
The pulling force of extension spring 9 is jumped up.
When normal use, wirerope drives the rope sheave 11 of limiter of speed to rotate, and under the action of frictional force, braked wheel 17 is with rope
Wheel 11 rotates together, as shown in figure 4, idler wheel 10 is moved along the outer ring of sine wheel 12 under the action of extension spring 9, thus band
Movable pendulum block 6 does harmonic moving around balance staff 7；When 11 rotation speed of rope sheave is more than setting speed, that is, when exceeding the speed limit, sine wheel 12 and rope sheave
11 rotate synchronously, and the idler wheel 10 on centering block 6 will jump up because of the high-speed rotation of sine wheel 12, and then drive the corresponding idler wheel of centering block 6
10 sides are jumped up upwards, and i.e. corresponding 26 side of pawl in the other side of centering block 6 then moves downward, and during moving downward will
Trigger switch 20 cuts off elevator safety loop, and elevator is out of service, and pawl 26 is embedded in braked wheel 17 simultaneously, at the same time,
The revolving speed and being transmitted on light-emitting diode display 8 by signal wire of sheave shaft 4 is shown when the record of encoder 3 stops.
Such as elevator at this time since inertia continues to run, braked wheel 17 is braked the limitation of pawl 26 and can not rotate, and makees in inertia
It is rotated with lower rope belt running rope wheel 11, while being rubbed and slowing down by the friction plate 13 of 11 two sides of rope sheave, make wirerope and rope sheave
11 keep rotating synchronously, and slow down, and wirerope generates frictional force lifting safety tongs movement with rope sheave 11 and keeps elevator out of service.
Staff directly can effectively read elevator speed at the scene, even if it is anti-problem initial stage can to occur in elevator
Feedforward information, and detection data can be saved after elevator brake.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of elevator governor, including mounting base and rack, sheave shaft is provided in the rack, it is characterised in that: institute
It states and is provided with braked wheel on sheave shaft, the braked wheel side is provided with rotary table, and rope sheave, rope sheave and system are arranged on the rotary table
Driving wheel split settings correspond to rope sheave side on the rotary table and are additionally provided with the friction plate for squeezing rope sheave, and the friction plate is provided with
Two pieces, two pieces of friction plates are located at the two sides of rope sheave；The end of the rotary table is provided with external screw thread, is provided on rotary table
It with the nut of external screw thread cooperation, is additionally provided on the rotary table and squeezes spring and brake(-holder) block, the brake(-holder) block is tightly attached to close to spiral shell
On the friction plate of female side, spring is squeezed between nut and brake(-holder) block；
Sine wheel is installed on the braked wheel, centering block is provided in the rack, connection centering block is provided in the rack
Balance staff, centering block are rotated around balance staff, and described centering block one end is provided with the idler wheel with sine wheel cooperation, the other end setting of the centering block
There is the pawl with braked wheel cooperation, one end that idler wheel is corresponded on the centering block is provided with extension spring, the extension spring two
End is separately fixed on centering block and rack, and internal screw thread is offered on the centering block, bolt, bolt are equipped in the internal screw thread of centering block
Extension spring is penetrated, the bolt penetrates extension spring one end and is provided with the limit film for adjusting extension spring screw pitch, the limit
The diameter of piece is greater than the diameter of extension spring.
2. elevator governor according to claim 1, it is characterised in that: the extruding spring is disk spring.
3. elevator governor according to claim 1, it is characterised in that: the bolt and limit film are rotatablely connected.
4. elevator governor according to claim 1, it is characterised in that: correspond to the pawl side of centering block in the rack
It is provided with the switch controlled by centering block, the switch is the switch of elevator safety loop.
5. elevator governor according to claim 1, it is characterised in that: the sheave shaft side is provided with encoder.
6. elevator governor according to claim 5, it is characterised in that: light-emitting diode display is provided in the rack, it is described
Signal wire is connected between light-emitting diode display and encoder.
7. elevator governor according to claim 5, it is characterised in that: the rack includes left support and right support, institute
Braked wheel is stated between left support and right support, the rotary table is located at braked wheel close to left support side, the sine wheel position
In braked wheel close to right support side, the centering block is located on right support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973440.XA CN105565104B (en) | 2015-12-22 | 2015-12-22 | Elevator governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973440.XA CN105565104B (en) | 2015-12-22 | 2015-12-22 | Elevator governor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105565104A CN105565104A (en) | 2016-05-11 |
| CN105565104B true CN105565104B (en) | 2019-07-23 |
Family
ID=55875838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973440.XA Active CN105565104B (en) | 2015-12-22 | 2015-12-22 | Elevator governor |
Country Status (1)
| Country | Link |
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| CN (1) | CN105565104B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298398B (en) * | 2017-01-13 | 2020-09-01 | 奥的斯电梯公司 | Core ring assembly for elevator governor, governor and elevator system |
| EA033019B1 (en) * | 2017-05-02 | 2019-08-30 | Открытое Акционерное Общество "Могилевский Завод Лифтового Машиностроения" (Оао "Могилевлифтмаш") | Speed limiting device |
| CN107261349A (en) * | 2017-08-11 | 2017-10-20 | 刘雪娜 | A kind of locking control device of self for descending lifeline |
| CN109696303B (en) * | 2019-01-16 | 2020-12-18 | 日立楼宇技术（广州）有限公司 | Speed limiter test bed |
| CN111908292A (en) * | 2019-05-08 | 2020-11-10 | 广东非凡教育设备有限公司 | Speed limiter assembly of teaching elevator |
| CN112573319B (en) * | 2019-09-29 | 2024-05-07 | 杭州沪宁电梯部件股份有限公司 | Rope wheel mechanism and speed limiter adopting same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1236777A (en) * | 1986-05-05 | 1988-05-17 | Hugo Winkler | Lift speed limiter |
| CN1108612A (en) * | 1993-06-08 | 1995-09-20 | 科思股份公司 | Procedure and apparatus for triggering the safety gear of an elevator |
| CN2680637Y (en) * | 2004-03-18 | 2005-02-23 | 河北东方机械厂 | Bidirectional elevator overspeed governor |
| CN201211988Y (en) * | 2008-05-06 | 2009-03-25 | 河北东方富达机械有限公司 | Speed limiter of elevator |
| CN201961919U (en) * | 2011-01-31 | 2011-09-07 | 沈阳博林特电梯股份有限公司 | Overspeed governor that has electromagnetic brake and photoelectric encoder |
| CN204873322U (en) * | 2015-08-25 | 2015-12-16 | 宁波奥德普电梯部件有限公司 | Elevator overspeed governor |
| CN205274934U (en) * | 2015-12-22 | 2016-06-01 | 杭州康特尔电梯部件有限公司 | Elevator speed limiting device |
-
2015
- 2015-12-22 CN CN201510973440.XA patent/CN105565104B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1236777A (en) * | 1986-05-05 | 1988-05-17 | Hugo Winkler | Lift speed limiter |
| CN1108612A (en) * | 1993-06-08 | 1995-09-20 | 科思股份公司 | Procedure and apparatus for triggering the safety gear of an elevator |
| CN2680637Y (en) * | 2004-03-18 | 2005-02-23 | 河北东方机械厂 | Bidirectional elevator overspeed governor |
| CN201211988Y (en) * | 2008-05-06 | 2009-03-25 | 河北东方富达机械有限公司 | Speed limiter of elevator |
| CN201961919U (en) * | 2011-01-31 | 2011-09-07 | 沈阳博林特电梯股份有限公司 | Overspeed governor that has electromagnetic brake and photoelectric encoder |
| CN204873322U (en) * | 2015-08-25 | 2015-12-16 | 宁波奥德普电梯部件有限公司 | Elevator overspeed governor |
| CN205274934U (en) * | 2015-12-22 | 2016-06-01 | 杭州康特尔电梯部件有限公司 | Elevator speed limiting device |
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| Publication number | Publication date |
|---|---|
| CN105565104A (en) | 2016-05-11 |
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