CN113928956B - Elevator is from dust removal rope sheave - Google Patents

Elevator is from dust removal rope sheave Download PDF

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Publication number
CN113928956B
CN113928956B CN202111355297.XA CN202111355297A CN113928956B CN 113928956 B CN113928956 B CN 113928956B CN 202111355297 A CN202111355297 A CN 202111355297A CN 113928956 B CN113928956 B CN 113928956B
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China
Prior art keywords
rope
magnet
elevator
shaped
annular groove
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Active
Application number
CN202111355297.XA
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Chinese (zh)
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CN113928956A (en
Inventor
刘飔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Furder Diving Technology Co ltd
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Zhejiang Furder Diving Technology Co ltd
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Priority to CN202111355297.XA priority Critical patent/CN113928956B/en
Publication of CN113928956A publication Critical patent/CN113928956A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1276—Cleaning means
    • B66B7/1284—Cleaning means specially adapted for ropes or cables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H55/50—Features essential to rope pulleys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)

Abstract

The invention relates to a self-dedusting rope wheel of an elevator, which is designed based on the starting point that a contact-type brush at all times is high in abrasion, frequent in replacement and high in maintenance cost, so that dust on a driving rope is cleaned in a state that the rotation speed of the rope is low when the elevator starts to ascend and descend and ends, vibration of dust and oil sludge can be effectively reduced by low-speed cleaning, cleaning is more effective, and the cleaning is not performed when the rotation speed is too fast, and as the elevator stays on all floors, the device can effectively clean a driving rope comprehensively but does not continuously clean, thereby ensuring the cleaning effect, simultaneously effectively reducing the maintenance period and having practicability and economy.

Description

Elevator is from dust removal rope sheave
Technical Field
The invention relates to the field of elevator rope pulley dust removing equipment, in particular to an elevator self-dust removing rope pulley.
Background
The elevator rope pulley is a pulley fixed on the elevator car or the elevator car bracket, the elevator driving rope passes through the elevator rope pulley, the elevator driving rope is used for realizing the up-and-down movement of the elevator car under the action of driving equipment, dust adhered to the elevator driving rope is required to be cleaned, vibration caused by uneven elevator operation due to uneven rope pulley track caused by accumulation of oil sludge on the elevator rope pulley is prevented, potential safety hazards are caused to elevator operation when the accumulation amount of the oil sludge reaches a certain degree, the method for cleaning dust at present generally adopts a ring-type fixed brush to be sleeved on the driving rope, the brush hair is used for directly brushing dust, and the driving rope always wears the brush when the elevator operates because the brush hair is contacted with the rope, so that the service life of the brush is very limited, the brush needs to be replaced frequently, maintenance cost is increased, and the time for collecting the dust on the driving rope is a long-time process, so that continuous dust brushing is unnecessary, and a new rope pulley dust removing is required at present to solve the problems.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention provides the self-dedusting rope pulley of the elevator, which effectively solves the problems of short service life, frequent replacement and high maintenance cost of a brush in the existing rope pulley dedusting process.
The technical scheme for solving the problems comprises a bracket and a rope pulley, wherein the rope pulley is rotatably arranged on the bracket, a T-shaped rod is fixed on the rear side of the bracket, a U-shaped rod with a forward opening is respectively arranged on the left side and the right side of the T-shaped rod, the middle positions of bottom rods of the two U-shaped rods are respectively rotatably arranged at the two ends of a transverse rod end of the T-shaped rod through a shaft, coil springs capable of resetting the U-shaped rods are sleeved on the shaft, a hairbrush is arranged on a side rod of each U-shaped rod, and the bristle directions of the hairbrushes on the two side rods on the U-shaped rod are opposite;
the front end face of the rope wheel is provided with a coaxial annular groove, the front end of the annular groove is provided with a cylinder which is coaxial with the annular groove, the diameter of the cylinder is larger than the inner diameter of the annular groove and smaller than the outer diameter of the annular groove, an annular magnet which can slide along the axial direction of the cylinder is sleeved on the outer circular surface of the cylinder, an L-shaped magnet is slidably installed in the annular groove, the annular magnet can be adsorbed by the L-shaped magnet when approaching to the L-shaped magnet, a plurality of sliding grooves are formed in the outer edge face of the cylinder at intervals along the axial direction of the annular magnet, a roller fixed on the annular magnet is installed in the sliding grooves, a first spring which can reset the annular magnet to the annular groove direction is arranged in the sliding grooves, a plurality of balancing weights which are in one-to-one correspondence with the sliding grooves and are slidably installed on the front end face of the cylinder are uniformly distributed on the front end face of the cylinder, the balancing weights are connected with the annular magnet through first ropes, the balancing weights are separated from the L-shaped magnet through the first ropes under the action of centrifugal force when the rope wheel rotates, the front end of the L-shaped magnet is provided with a horizontal forward pin shaft, the left side and the right side of the pin shaft are respectively provided with a second rope, and the free ends of the second ropes are respectively fixed at the ends of the corresponding U-shaped rods.
Preferably, the annular magnet and the L-shaped magnet can not be attracted and adsorbed with each other and other parts on the rope pulley, the annular groove and the cylinder are made of materials which can not be adsorbed by the magnet.
Preferably, the end face of the cylinder is provided with a sliding rail corresponding to the balancing weights one by one, and the balancing weights are slidably arranged on the sliding rail.
Preferably, the inner end and the outer end of each balancing weight are respectively provided with a fixed pulley, one end of the first rope is fixed on the annular magnet, the other end of the first rope sequentially passes through the fixed pulleys on the outer side of the balancing weight, and the fixed pulleys on the inner side of the balancing weight are fixed on the balancing weight after bypassing.
Preferably, a positioning rod is arranged on the inner side of each balancing weight, a second spring is arranged between the positioning rod and the balancing weight, one end of the second spring is fixed on the balancing weight, and the other end of the second spring is fixed on the positioning rod.
Preferably, the L-shaped magnet and the ring-shaped magnet are in contact with each other in a ridge-through circular arc transition.
Preferably, a dust collecting cover is sleeved on the side rod of each U-shaped rod positioned on the inner side.
Preferably, the length of the side bar of each U-shaped bar arranged on the outer side is longer than that of the side bar arranged on the inner side.
Preferably, the L-shaped magnet is of a fan-shaped structure, the outer cambered surface of the L-shaped magnet is embedded with balls, and the balls can roll and fit with the outer side wall of the annular groove.
The device is designed based on the starting point that the contact type hairbrush at all times has large abrasion, frequent replacement and high maintenance cost, so that the device cleans dust on the driving rope in the state that the rotation speed of the rope is low when the elevator ascends and descends starts and ends, the cleaning effect is ensured, the maintenance period is effectively shortened, and the device has practicability and economy.
Drawings
Fig. 1 is a front view of the sheave of the present invention when not rotating.
Fig. 2 is a front view of the sheave of the present invention in an initial clockwise rotation.
Fig. 3 is a top view of the present invention.
Fig. 4 is a left side partial cross-sectional view of the sheave of the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As can be seen from fig. 1 to 4, the invention comprises a bracket 1 and a rope pulley 2, the rope pulley 2 is rotatably mounted on the bracket 1, a T-shaped rod 3 is fixed at the rear side of the bracket 1, two U-shaped rods 4 with front openings are respectively arranged at the left side and the right side of the T-shaped rod 3, the middle positions of bottom rods of the two U-shaped rods 4 are respectively rotatably mounted at the two ends of the transverse rod end of the T-shaped rod 3 through shafts, coil springs 5 capable of resetting the U-shaped rods 4 are sleeved on the shafts, a brush 6 is mounted on the side rod of each U-shaped rod 4, the brush 6 is detachably mounted on the side rod of the U-shaped rod 4, the brush bristles of the brush 6 on the two side rods of the U-shaped rod 4 face opposite directions, when the bottom rod of the U-shaped rod 4 is horizontal, the brush bristles on the side rods of the U-shaped rod 4 are upwards arranged, and the brush bristles on the brush 6 are fan-shaped;
the front end face of the rope pulley 2 is provided with a coaxial annular groove 7, the front end of the annular groove 7 is provided with a cylinder coaxial with the annular groove 7, the diameter of the cylinder is larger than the inner diameter of the annular groove 7 and smaller than the outer diameter of the annular groove 7, an annular magnet 8 capable of sliding along the axis direction of the cylinder is sleeved on the outer circular face of the cylinder, an L-shaped magnet is mounted in the annular groove 7 in a sliding manner, a part of groove on the inner side wall of the annular groove 7 is blocked by the cylinder, the L-shaped magnet is clamped in the annular groove 7, the annular magnet 8 can be adsorbed by the L-shaped magnet, a plurality of sliding grooves are formed in the outer edge face of the cylinder at intervals along the axial direction of the annular magnet, a roller fixed on the annular magnet 8 is arranged in the sliding grooves, a first spring capable of enabling the annular magnet 8 to reset towards the annular groove 7 is arranged in the sliding grooves, one end of the first spring is fixed on the roller frame, the other end of the roller frame is fixed on the inner end wall of the sliding groove, a plurality of counterweights corresponding to the sliding grooves are uniformly distributed on the front end face of the cylinder, and are mounted on the front end face of the cylinder in a sliding manner, a part of the sliding weight is connected with the annular magnet 8 through a first rope 13, the L-shaped magnet is clamped in the clamping manner, a plurality of the first rope 13, a plurality of sliding weights are separated from the first rope 13 and the free end corresponding to the first rope 13 is arranged at the left side and the left end and right end of the free end of the first rope 13 is opposite to the left end of the first rope 13, and the free end of the free end 12 is opposite to the left end of the first rope 13 to the free end 13.
In order to prevent the ring magnet 8 and the L-shaped magnet from being interfered by other magnetic materials, the ring magnet 8 and the L-shaped magnet can attract and adsorb each other, and can not magnetically adsorb other components on the sheave 2, and the annular groove 7 and the cylinder are made of materials which can not be adsorbed by the magnets.
In order to realize the slidable mounting of balancing weight, be equipped with the slide rail with balancing weight one-to-one on the terminal surface of cylinder, balancing weight slidable mounting is on the slide rail.
In order to realize that the balancing weights drive the annular magnet 8 through the first ropes 13, the inner end and the outer end of each balancing weight are respectively provided with a fixed pulley, one end of each first rope 13 is fixed on the annular magnet 8, the other end of each first rope sequentially passes through the fixed pulleys on the outer sides of the balancing weights, and the fixed pulleys on the inner sides of the balancing weights are fixed on the balancing weights after being bypassed.
In order to realize the reset of balancing weight, the inboard of every balancing weight is equipped with the locating lever, is equipped with the second spring between locating lever and the balancing weight, and the one end of second spring is fixed on the balancing weight, and the other end is fixed on the locating lever.
In order to realize the maximum adsorption of the ring magnet 8 with the L-shaped magnet during resetting, the ridge of the L-shaped magnet contacted with the ring magnet 8 transits through an arc.
In order to collect dust, a dust hood 16 is sleeved on the side rod of each U-shaped rod 4 positioned on the inner side.
In order to achieve the installation of the second rope 13, the length of the side bar of each U-shaped bar 4 placed on the outer side is longer than the length of the side bar placed on the inner side.
In order to reduce friction between the L-shaped magnet and the annular groove 7 when the rope pulley 2 rotates at a high speed, the L-shaped magnet is of a fan-shaped structure, the outer cambered surface of the L-shaped magnet is embedded with balls, and the balls can roll and fit with the outer side wall of the annular groove 7.
The specific working process of the invention comprises the following steps: when the device is used, the rope pulley 2 is arranged on a car through the support 1, the elevator driving rope passes through a plurality of grooves of the rope pulley 2, the driving rope passes through the middle of the left U-shaped rod 4 and the right U-shaped rod 4, the coil spring 5 on the bottom rod shaft of the U-shaped rod 4 drives the bottom rod of the U-shaped rod 4 to be in a horizontal state when not stressed, the inner side rod of the U-shaped rod 4 is higher than the outer side rod when the rope pulley 2 does not rotate or rotates at a high speed under the action of the second rope 13, the L-shaped magnet is arranged at the uppermost position in the initial state, and the annular magnet 8 is close to the L-shaped magnet and is mutually adsorbed under the reset action of the second spring and the second spring.
When the rope wheel 2 rotates clockwise at the initial stage, the left driving rope is tightened, at the moment, the L-shaped magnet and the rope wheel 2 can not rotate relatively because the annular magnet 8 is adsorbed by the L-shaped magnet, the L-shaped magnet rotates clockwise along with the rope wheel 2, in the process, the right rope 13 is loosened, the left rope 13 is tightened, the right rope 13 is loosened to enable the bottom rod of the right U-shaped rod 4 to be in a horizontal state, the left U-shaped rod 4 is arranged on the side rod at the inner side and the side rod arranged at the outer side to approach the driving rope, the brush hair of the brush 6 on the left U-shaped rod is contacted with the driving rope, the movement of the driving rope can remove dust on the driving rope, the dust at the inner side is directly brushed off by the dust at the outer side under the action of the dust collecting cover 16 and falls onto the rope wheel 2 to form oil sludge, the elevator is gradually accelerated at low initial speed when the elevator starts rotating, and therefore the rotating speed of the rope wheel 2 is low, when the left rope 13 is tensioned, the L-shaped magnet cannot move along the rope pulley 2, at the moment, the L-shaped magnet and the pulley 2 are attracted to slide in a friction manner relatively to each other through the annular magnet 8, after the speed of the rope 13 reaches a certain degree, the balancing weight is enabled to move outwards through centrifugal force provided by rotation of the rope pulley 2, the balancing weight moves outwards along the sliding rail in the process, the first rope 13 is tightened, both the first spring and the second spring are stretched, the balancing weight is enabled to drive the annular magnet 8 to be gradually far away from the L-shaped magnet under the guiding action of the fixed pulley, at the moment, friction between the L-shaped magnet and the annular groove 7 is reduced, two U-shaped rods 4 are reset to an initial state under the reset action of the coil spring 5, and after the rope 13 is slowed down, the annular magnet 8 and the L-shaped magnet are enabled to be attached and adsorbed again under the reset action of the first spring and the second spring.
When the rope 13 rotates anticlockwise, the movement modes of the left U-shaped rod 4 and the right U-shaped rod 4 are opposite, at the moment, the hairbrush 6 on the right U-shaped rod 4 removes dust on the right driving rope, the bottom rod of the left U-shaped rod 4 keeps a horizontal state, at the moment, clockwise and anticlockwise rotation of the rope pulley 2 corresponds to ascending and descending of the elevator car, and because the limit L-shaped magnet of the second rope 13 always slides at the position close to the rope pulley 2, and the position is adaptively changed according to the rotation speed of the rope pulley 2.
The device has the following advantages compared with the traditional equipment:
1. the device is designed according to the starting point that the contact type hairbrush 6 is worn and torn down at any time and is frequently replaced and high in maintenance cost is a problem, so that dust on a driving rope is cleaned in the state that the rotating speed of a rope 13 is low when the elevator ascends and descends and ends, vibration of dust and oil sludge can be effectively reduced through low-speed cleaning, cleaning is more effective, and the cleaning is not performed again when the rotating speed is too fast.
2. Wherein set up dust cage 16 in the inboard pole brush 6 outside of U-shaped pole 4, can effectually avoid the oil sludge to splash to rope sheave 2 on, the left and right sides drive the rope and all be when moving from bottom to top when moving brush 6 contact and dust removal, and brush 6 and dust cage 16 under this state can effectually collect dust oil sludge, prevent that it from splashing.
3. This device sets up a set of dust collector respectively in both sides, and every dust collector of group homoenergetic cleans each clearance in both sides of driving rope for the driving rope removes dust more high-efficient comprehensively, and the ascending and descending of two sets of dust collecting equipment alternate motion cooperation elevator simultaneously can cover the cleanness of whole driving rope completely and make clean no dead angle, makes whole device more reasonable high-efficient when using.

Claims (9)

1. The utility model provides an elevator is from dust removal rope sheave, including support (1) and rope sheave (2), its characterized in that, rope sheave (2) rotate and install on support (1), the rear side of support (1) is fixed with a T shape pole (3), the left and right sides of T shape pole (3) respectively is equipped with a U shape pole (4) that open front, the sill bar intermediate position of two U shape poles (4) is installed at the both ends of T shape pole (3) transverse rod end through the axle rotation respectively, the epaxial cover is equipped with coil spring (5) that can make U shape pole (4) reset, install brush (6) on the side lever of every U shape pole (4), the brush hair orientation of brush (6) on two side levers on U shape pole (4) is opposite;
the front end face of the rope wheel (2) is provided with a coaxial annular groove (7), the front end of the annular groove (7) is provided with a cylinder coaxial with the annular groove, the diameter of the cylinder is larger than the inner diameter of the annular groove (7) and smaller than the outer diameter of the annular groove (7), an annular magnet (8) capable of sliding along the axis direction of the cylinder is sleeved on the outer circular surface of the cylinder, an L-shaped magnet is slidably mounted in the annular groove (7), the annular magnet (8) can be adsorbed with the L-shaped magnet when approaching the L-shaped magnet, a plurality of sliding grooves are partially arranged on the outer edge surface of the cylinder along the axial direction of the annular magnet at intervals, and idler wheels fixed on the annular magnet (8) are mounted in the sliding grooves, the utility model discloses a pulley, including annular magnet (8), a plurality of balancing weights, rope sheave (2) are equipped with the first spring that can make annular magnet (8) reset to annular groove (7) direction in the spout, circumference equipartition and a plurality of and spout one-to-one and slidable mounting are on the preceding terminal surface of cylinder, balancing weights and annular magnet (8) are connected through first rope (13), balancing weights drive annular magnet (8) and break away from L shape magnet through first rope (13) under the effect of centrifugal force when rope sheave (2) rotate, the front end of L shape magnet is equipped with horizontal forward round pin axle (12), the left and right sides of round pin axle (12) respectively is equipped with a second rope (13), the free end of second rope (13) is fixed respectively in the side lever tip in the outside of corresponding U-shaped pole (4).
2. The self-dedusting rope pulley for the elevator according to claim 1, wherein the annular magnet (8) and the L-shaped magnet can not be attracted and absorbed with other parts on the rope pulley (2) and can not generate magnetic absorption, and the annular groove (7) and the cylinder are made of materials which can not be absorbed by the magnet.
3. The self-dedusting rope wheel of the elevator according to claim 1, wherein the end face of the cylinder is provided with a sliding rail corresponding to the balancing weights one by one, and the balancing weights are slidably arranged on the sliding rail.
4. An elevator self-dedusting rope wheel as claimed in claim 1, characterized in that the inner end and the outer end of each balancing weight are respectively provided with a fixed pulley, one end of the first rope (13) is fixed on the ring magnet (8), the other end is sequentially from the fixed pulley outside the balancing weight, and the fixed pulley on the inner side of the balancing weight is fixed on the balancing weight after being wound.
5. The self-dedusting rope wheel of the elevator according to claim 1, wherein a positioning rod is arranged on the inner side of each balancing weight, a second spring is arranged between the positioning rod and the balancing weight, one end of the second spring is fixed on the balancing weight, and the other end of the second spring is fixed on the positioning rod.
6. An elevator self-dedusting sheave according to claim 1, characterized in that the L-shaped magnet is in contact with the ring magnet (8) in a ridge-through arc transition.
7. An elevator self-dusting sheave according to claim 1, characterized in that the side bars of each U-shaped bar (4) are provided with a dust hood (16) on the inner side.
8. An elevator self-dusting sheave according to claim 1, characterized in that the length of the side bars of each U-shaped bar (4) placed outside is longer than the length of the side bars placed inside.
9. The elevator self-dedusting rope wheel according to claim 1, wherein the L-shaped magnet is of a fan-shaped structure, balls are embedded on the outer cambered surface of the L-shaped magnet, and the balls can be in rolling fit with the outer side wall of the annular groove (7).
CN202111355297.XA 2021-11-16 2021-11-16 Elevator is from dust removal rope sheave Active CN113928956B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111355297.XA CN113928956B (en) 2021-11-16 2021-11-16 Elevator is from dust removal rope sheave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111355297.XA CN113928956B (en) 2021-11-16 2021-11-16 Elevator is from dust removal rope sheave

Publications (2)

Publication Number Publication Date
CN113928956A CN113928956A (en) 2022-01-14
CN113928956B true CN113928956B (en) 2023-05-26

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04169493A (en) * 1990-10-15 1992-06-17 Mitsubishi Denki Bill Techno Service Kk Cleaning brush tool for elevator hoist
JP5271195B2 (en) * 2009-08-17 2013-08-21 三菱電機ビルテクノサービス株式会社 Cleaning jig for driving sheave of elevator hoisting machine
CN107337065A (en) * 2016-04-28 2017-11-10 天津隆勤电梯部件有限公司 A kind of good rope sheave of dust reduction capability
CN107285164A (en) * 2017-08-23 2017-10-24 湖州力奥电梯配件有限公司 A kind of anti-greasy filth rope sheave
CN208308185U (en) * 2018-05-16 2019-01-01 允成机电科技(上海)有限公司 A kind of diversion sheave type dust arrester of traction elevator
CN109264540A (en) * 2018-09-28 2019-01-25 天津乐驰电梯配件有限公司 A kind of adjustable elevator drive rope sheave having cleaning function

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Address after: No. 567 Tunheng Road, Nanxun Town, Nanxun District, Huzhou City, Zhejiang Province, 313009

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