CN105565104A - Elevator speed limiter - Google Patents
Elevator speed limiter Download PDFInfo
- Publication number
- CN105565104A CN105565104A CN201510973440.XA CN201510973440A CN105565104A CN 105565104 A CN105565104 A CN 105565104A CN 201510973440 A CN201510973440 A CN 201510973440A CN 105565104 A CN105565104 A CN 105565104A
- Authority
- CN
- China
- Prior art keywords
- centering block
- rope sheave
- brake wheel
- wheel
- brake
- 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.)
- Granted
Links
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
Abstract
The invention discloses an elevator speed limiter. The elevator speed limiter comprises a mounting bottom plate and racks, wherein a rope sheave shaft is arranged on the racks; a brake wheel is arranged on the rope heave shaft; one side of the brake wheel is provided with a circular truncated cone; a rope sheave sleeves the circular truncated cone; the rope sheave and the brake wheel are arranged in a split mode; friction plates for extruding the rope sheave are further arranged on the side surface, corresponding to the rope sheave, of the circular truncated cone; the two friction plates are respectively positioned at the two sides of the rope sheave; the end part of the circular truncated cone is provided with outer threads; a nut matched with the outer threads is further arranged on the circular truncated cone; an extrusion spring and a brake plate are further arranged on the circular truncated cone; the brake plate clings to the friction plate close to one side of the nut; and the extrusion spring is positioned between the nut and the brake plate. While operating at an overspeed, the rope sheave does not stop motion immediately, but speeds down to slowly rotate, so that a steel wire rope is always kept to synchronously move with the rope sheave, and the steel wire rope and the rope sheave do not have sliding friction, and therefore, the steel wire rope is prevented from being worn severely.
Description
Technical field
The invention belongs to velocity limiter field, relate to a kind of elevator governor in particular.
Background technology
Elevator governor is one of safety con-trol part in elevator safety protection system.When elevator is in operation, no matter which kind of reason makes car exceed the speed limit, the danger of even falling, and in the out-of-action situation of every other safety guard, then velocity limiter and safety tongs generation linkage action, makes lift car stop.
Application number be 200420005455.4 Chinese patent disclose a kind of Bidirectional elevator overspeed governor, comprise rope sheave, the side of rope sheave has brake disc, the cylindrical of brake disc is provided with multiple breaker slot and multiple protruding cambered surface around ground, rope sheave is arranged on sheave shaft, sheave shaft is installed in rotation on the middle part of frame, what the top of frame can swing is provided with centering block, the bottom of centering block one end can be provided with aluminium wheel rotationally, aluminium wheel matches with described protruding cambered surface, one end that centering block is provided with aluminium wheel utilizes the spring stretched to be connected with described support downwards, the bottom of the centering block other end is provided with retaining pawl, the top of retaining pawl is provided with switch and makes bar, retaining pawl matches with described breaker slot, described frame is provided with snap switch, the contact of snap switch is made bar with described switch and is matched, each described breaker slot is dovetail form, described retaining pawl is the dovetail form corresponding to described breaker slot shape.Its objective is and provide a kind of elevator risen to hypervelocity and decline can both send braking electric signal and carry out mechanical braking.
When re-using in above-mentioned patent, rope sheave and disc rotation, aluminium wheel on centering block and the protruding cambered surface friction on brake disc, under the effect of extension spring, aluminium wheel moves along protruding cambered surface outer ring, thus drive centering block to do harmonic moving, when rope sheave rotative speed exceedes setting speed, under the influence of centrifugal force, jump up in centering block corresponding aluminium wheel side, thus make the retaining pawl of centering block be flapped toward the breaker slot place of brake disc, and then in embedding breaker slot, brake disc and rope sheave are braked, steel rope on rope sheave and rope sheave are produced rub, thus the action of lift safety tongs makes elevator out of service.
Still there is following technical matters in above-mentioned patent:
1, when elevator overspeed, retaining pawl on centering block is directly by brake disc and Multiple disc brake, make the two all cannot rotate, speed at once near zero, because elevator is when exceeding the speed limit, its inertia is larger, cannot stop at once, drive steel rope is rotated further by the inertia of elevator, and steel rope will rub in rope sheave, steel rope and rope sheave serious wear, even directly rupture.
2, because aluminium wheel is all the time with the protruding cambered surface associated movement on brake disc, aluminium wheel belt movable pendulum block does harmonic moving, when elevator overspeed, whether centering block is because centnifugal force is jumped up the elasticity modulus of extension spring that centering block connects of placing one's entire reliance upon, but the setting speed of the elevator that different occasion uses is different, and then make producer must change the spring of corresponding elasticity modulus according to actual use occasion when producing, velocity limiter is comparatively complicated parts, it is all very inconvenient that it is dismantled and installs, and parts near centering block are less, easily lose.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of elevator when overspeed, rope sheave can not stop motion at once, but reduction of speed rotates slowly, steel rope is synchronized with the movement with rope sheave all the time, make cliding friction to occur between steel rope and rope sheave, and then the elevator governor preventing steel rope abrasion serious.
For achieving the above object, the invention provides following technical scheme: a kind of elevator governor, comprise mounting base and frame, described frame is provided with sheave shaft, described sheave shaft is provided with brake wheel, and described brake wheel side is provided with round platform, and described round platform is arranged with rope sheave, rope sheave and brake wheel split are arranged, and on described round platform, corresponding rope sheave side is also provided with the friction lining of extruding rope sheave.
Further described friction lining is provided with two pieces, and described two pieces of friction linings lay respectively at the both sides of rope sheave.
The end of further described round platform is provided with outside thread, round platform is provided with the nut coordinated with outside thread, described round platform is also provided with extrusion spring and brake plate, and described brake plate is close on the friction lining of nut side, and extrusion spring is between nut and brake plate.
Further described extrusion spring is disk spring.
Further described brake wheel is provided with sine wheel, described frame is provided with centering block, described frame is provided with the balance staff connecting centering block, centering block rotates around balance staff, described centering block one end is provided with the roller coordinated with sine wheel, the other end of described centering block is provided with the retaining pawl coordinated with brake wheel, on described centering block, one end of corresponding roller is provided with extension spring, described extension spring two ends are separately fixed in centering block and frame, described centering block offers negative thread, bolt is equipped with in the negative thread of centering block, bolt penetrates extension spring, described bolt penetrates extension spring one end and is provided with the banking stop regulating extension spring pitch, the diameter of described banking stop is greater than the diameter of extension spring.
Further described bolt and banking stop are rotationally connected.
In further described frame, the retaining pawl side of corresponding centering block is provided with the switch controlled by centering block, and described switch is the switch of elevator safety loop.
Further described sheave shaft side is provided with coder.
Further described frame is provided with light-emitting diode display, between described light-emitting diode display and coder, is connected with signal wire (SW).
Further described frame comprises left socle and right support, and described brake wheel is between left socle and right support, and described boss is positioned at brake wheel near left socle side, described sine wheel is positioned at brake wheel near right support side, and described centering block is positioned on right support.
Compared with prior art, the invention has the beneficial effects as follows:
1, rope belt running rope wheel rotates, and under friction force effect, brake wheel rotates with rope sheave, and under extension spring effect, roller moves along sine wheel outer ring, thus drives centering block to do harmonic moving around balance staff, when rope sheave exceeds the speed limit, jump up in the corresponding roller side of centering block under the influence of centrifugal force, then in centering block corresponding retaining pawl side braking in a turn wheel, brake wheel is stopped operating, meanwhile trigger switch cuts off elevator safety loop, after brake wheel stops operating, as elevator continues motion by inertia, then rope belt running rope wheel is rotated further, rope sheave then rubs with the friction lining of its both sides, friction lining slows down to rope sheave, simultaneously steel rope and rope sheave produce friction force and lift safety tongs action and make elevator out of service, in the process steel rope all the time with rope sheave synchronous axial system, fricton-tight friction, avoid the severe wear of steel rope, the design of two friction lining makes rope sheave both sides uniform force, reach balance.
2, when brake wheel is braked stopping, connected sheave shaft synchronously stops operating immediately, now coder by record sheave shaft speed and be transferred on light-emitting diode display, service personnel directly reads data by light-emitting diode display and keeps a record.
3, by the degree of adjusting nut extruding disk spring, the friction force between adjustment friction lining and rope sheave, can change when brake wheel stops operating by the change of friction force, friction lining is to the slowing effect of rope sheave; And after using a period of time, friction lining has certain wearing and tearing, by nut extruding disk spring, friction force between friction lining and rope sheave is made to recover normal condition.
4, belleville spring operationally, its force direction is along the axis direction of sheave shaft, can not twist or component when exerting a force compared to coil spring or other types spring, disk spring then makes friction lining, and circumferentially each position is stressed identical, and friction lining contacts evenly with rope sheave.
5, different according to the hypervelocity setting numerical value of different occasion elevator, by the bolt of circumgyration stretch spring position, make bolt along extension spring axial-movement, and then drive banking stop to move, the extension spring driven between banking stop to bolt head moves by banking stop, and then changes the pitch that extension spring is left part, changes its elasticity, and then the required power be subject to changes when making centering block jump up completely, setting means is easy.
Accompanying drawing explanation
Fig. 1 is the main apparent direction structural representation of elevator governor of the present invention;
Fig. 2 is the cross section view at A-A place in Fig. 1;
Fig. 3 is the enlarged drawing in B portion in Fig. 2;
Fig. 4 is brake wheel in the present invention, fit structure schematic diagram between sine wheel and centering block.
Reference numeral: 1, mounting base; 2, right support; 3, coder; 4, sheave shaft; 5, bearing seat; 6, centering block; 7, balance staff; 8, light-emitting diode display; 9, extension spring; 10, roller; 11, rope sheave; 12, sine wheel; 13, friction lining; 14, brake plate; 15, disk spring; 16, nut; 17, brake wheel; 18, left socle; 19, switch bracket; 20, switch; 23, bolt; 25, banking stop; 26, retaining pawl.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, the embodiment of elevator governor of the present invention is described further.
A kind of elevator governor, comprise mounting base 1 and frame, frame comprises left socle 18 and right support 2, sheave shaft 4 is provided with between described left socle 18 and right support 2, described sheave shaft 4 is provided with brake wheel 17, it is interference fit between brake wheel 17 and sheave shaft 4, described brake wheel 17 is provided with round platform towards left socle 18 side, described round platform is arranged with rope sheave 11, rope sheave 11 and brake wheel 17 split are arranged, on described round platform, corresponding rope sheave 11 side is also provided with the friction lining 13 of extruding rope sheave 11, described friction lining 13 is provided with two pieces, described two pieces of friction linings 13 lay respectively at the both sides of rope sheave 11, the end of described round platform is provided with outside thread, round platform is provided with the nut 16 coordinated with outside thread, described round platform is also provided with extrusion spring and brake plate 14, described brake plate 14 is close on the friction lining 13 of nut 16 side, extrusion spring is between nut 16 and brake plate 14, preferred described extrusion spring is disk spring 15, friction lining 13 near right support 2 is fixed on the side of brake wheel 17, friction lining 13 near left socle 18 is fixed on brake plate 14.
Preferred described brake wheel 17 is provided with sine wheel 12, sine wheel 12 is positioned at brake wheel 17 near right support 2 side, described right support 2 is provided with centering block 6, described right support 2 is provided with the balance staff 7 connecting centering block 6, centering block 6 rotates around balance staff 7, described centering block 6 one end is provided with the roller 10 coordinated with sine wheel 12, the other end of described centering block 6 is provided with the retaining pawl 26 coordinated with brake wheel 17, on described centering block 6, one end of corresponding roller 10 is provided with extension spring 9, described extension spring 9 two ends are separately fixed on centering block 6 and right support 2, described centering block 6 offers negative thread, bolt 23 is equipped with in the negative thread of centering block 6, bolt 23 penetrates extension spring 9, described bolt 23 penetrates extension spring 9 one end and is provided with the banking stop 25 regulating extension spring 9 pitch, the diameter of described banking stop 25 is greater than the diameter of extension spring 9, described bolt 23 is rotationally connected with banking stop 25, on described right support 2, retaining pawl 26 side of corresponding centering block 6 is provided with the switch 20 controlled by centering block 6, described switch 20 is the switch 20 of elevator safety loop, right support 2 is also provided with the switch bracket 19 placing switch 20.
Preferred described sheave shaft 4 right-hand member stretches out right support 2, sheave shaft 4 stretches out right support 2 side and is provided with coder 3, coder 3 is coaxial with sheave shaft 4, hourly velocity is stopped for recording sheave shaft 4, described frame is provided with light-emitting diode display 8, between described light-emitting diode display 8 and coder 3, is connected with signal wire (SW).
Preferably on left socle 18 and right support 2, be provided with bearing seat 5, be provided with bearing in bearing seat 5, sheave shaft 4 is fixed through two bearings.
Principle of work of the present invention is, before using, first the nut 16 on round platform is rotated, disk spring 15 is extruded by nut 16, change the friction force between friction lining 13 and rope sheave 11, make the friction force between friction lining 13 and rope sheave 11 be less than friction force between steel rope and rope sheave 11, and when brake wheel 17 is not braked, make the friction force between friction lining 13 and rope sheave 11 be enough to drive brake wheel 17 to carry out free rotation; The bolt 23 of adjustment centering block 6 position, the distance between adjustment banking stop 25 to bolt 23 one end, change the pitch of extension spring 9, when making rope sheave 11 exceed the speed limit, under centrifugal action, the pulling force that centering block 6 is enough to shake off extension spring 9 is jumped up.
During normal use, steel rope drives the rope sheave 11 of velocity limiter to rotate, under the effect of friction force, brake wheel 17 rotates with rope sheave 11, as shown in Figure 4, under the effect of extension spring 9, roller 10 moves along the outer ring of sine wheel 12, thus drives centering block 6 to do harmonic moving around balance staff 7, when rope sheave 11 rotative speed exceedes setting speed, when namely exceeding the speed limit, sine wheel 12 and rope sheave 11 synchronous axial system, high speed rotating because of sine wheel 12 is jumped up by the roller 10 on centering block 6, and then drive centering block 6 corresponding roller 10 side upwards to jump up, opposite side and corresponding retaining pawl 26 side of centering block 6 then move downward, moving downward trigger switch 20 in process, cut off elevator safety loop, elevator is out of service, retaining pawl 26 embeds in brake wheel 17 simultaneously, meanwhile, the rotating speed being transferred on light-emitting diode display 8 by signal wire (SW) that coder 3 records sheave shaft 4 when stopping is shown.
As now elevator because inertia continues to run, brake wheel 17 is braked pawl 26 and limits and cannot rotate, under effect of inertia, rope belt running rope wheel 11 rotates, simultaneously by the friction lining 13 of rope sheave 11 both sides rub slow down, steel rope and rope sheave 11 is made to keep synchronous axial system, and slow down, and steel rope and rope sheave 11 produce friction force lifts safety tongs action and make elevator out of service.
Staff directly effectively can read elevator speed at the scene, even if at elevator generation problem initial stage feedback information, and can preserve detection data after elevator brake.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an elevator governor, comprise mounting base and frame, described frame is provided with sheave shaft, it is characterized in that: described sheave shaft is provided with brake wheel, described brake wheel side is provided with round platform, described round platform is arranged with rope sheave, and rope sheave and brake wheel split are arranged, and on described round platform, corresponding rope sheave side is also provided with the friction lining of extruding rope sheave.
2. elevator governor according to claim 1, is characterized in that: described friction lining is provided with two pieces, and described two pieces of friction linings lay respectively at the both sides of rope sheave.
3. elevator governor according to claim 2, it is characterized in that: the end of described round platform is provided with outside thread, round platform is provided with the nut coordinated with outside thread, described round platform is also provided with extrusion spring and brake plate, described brake plate is close on the friction lining of nut side, and extrusion spring is between nut and brake plate.
4. elevator governor according to claim 3, is characterized in that: described extrusion spring is disk spring.
5. elevator governor according to claim 1, it is characterized in that: described brake wheel is provided with sine wheel, described frame is provided with centering block, described frame is provided with the balance staff connecting centering block, centering block rotates around balance staff, described centering block one end is provided with the roller coordinated with sine wheel, the other end of described centering block is provided with the retaining pawl coordinated with brake wheel, on described centering block, one end of corresponding roller is provided with extension spring, described extension spring two ends are separately fixed in centering block and frame, described centering block offers negative thread, bolt is equipped with in the negative thread of centering block, bolt penetrates extension spring, described bolt penetrates extension spring one end and is provided with the banking stop regulating extension spring pitch, the diameter of described banking stop is greater than the diameter of extension spring.
6. elevator governor according to claim 5, is characterized in that: described bolt and banking stop are rotationally connected.
7. elevator governor according to claim 5, is characterized in that: in described frame, the retaining pawl side of corresponding centering block is provided with the switch controlled by centering block, and described switch is the switch of elevator safety loop.
8. elevator governor according to claim 5, is characterized in that: described sheave shaft side is provided with coder.
9. elevator governor according to claim 8, is characterized in that: described frame is provided with light-emitting diode display, is connected with signal wire (SW) between described light-emitting diode display and coder.
10. elevator governor according to claim 8, it is characterized in that: described frame comprises left socle and right support, described brake wheel is between left socle and right support, described boss is positioned at brake wheel near left socle side, described sine wheel is positioned at brake wheel near right support side, and described centering block is positioned 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 true CN105565104A (en) | 2016-05-11 |
| CN105565104B CN105565104B (en) | 2019-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510973440.XA Active CN105565104B (en) | 2015-12-22 | 2015-12-22 | Elevator governor |
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| CN (1) | CN105565104B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107261349A (en) * | 2017-08-11 | 2017-10-20 | 刘雪娜 | A kind of locking control device of self for descending lifeline |
| US20180201480A1 (en) * | 2017-01-13 | 2018-07-19 | Otis Elevator Company | Ring assembly for elevator governor, governor and elevator system |
| CN109696303A (en) * | 2019-01-16 | 2019-04-30 | 日立楼宇技术（广州）有限公司 | Limiter of speed testing stand |
| EA033019B1 (en) * | 2017-05-02 | 2019-08-30 | Открытое Акционерное Общество "Могилевский Завод Лифтового Машиностроения" (Оао "Могилевлифтмаш") | Speed limiting device |
| CN112573319A (en) * | 2019-09-29 | 2021-03-30 | 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 |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180201480A1 (en) * | 2017-01-13 | 2018-07-19 | Otis Elevator Company | Ring assembly for elevator governor, governor and elevator system |
| CN108298398A (en) * | 2017-01-13 | 2018-07-20 | 奥的斯电梯公司 | For the core ring assemblies of elevator governor, limiter of speed and elevator device |
| EP3360834A1 (en) * | 2017-01-13 | 2018-08-15 | Otis Elevator Company | Ring assembly for elevator governor, governor and elevator system |
| 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 |
| US11078044B2 (en) | 2017-01-13 | 2021-08-03 | Otis Elevator Company | 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 |
| CN109696303A (en) * | 2019-01-16 | 2019-04-30 | 日立楼宇技术（广州）有限公司 | Limiter of speed testing stand |
| CN109696303B (en) * | 2019-01-16 | 2020-12-18 | 日立楼宇技术（广州）有限公司 | Speed limiter test bed |
| CN112573319A (en) * | 2019-09-29 | 2021-03-30 | 杭州沪宁电梯部件股份有限公司 | Rope wheel mechanism and speed limiter adopting same |
| 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 |
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| CN105565104B (en) | 2019-07-23 |
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