CN214359604U - Elevator machine - Google Patents

Elevator machine Download PDF

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Publication number
CN214359604U
CN214359604U CN202120029575.1U CN202120029575U CN214359604U CN 214359604 U CN214359604 U CN 214359604U CN 202120029575 U CN202120029575 U CN 202120029575U CN 214359604 U CN214359604 U CN 214359604U
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CN
China
Prior art keywords
traction
rope
cage
guide
guide wheel
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Active
Application number
CN202120029575.1U
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Chinese (zh)
Inventor
彭忠良
周建
赵安莉
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Zhejiang Banmen Machinery Technology Co ltd
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Zhejiang Banmen Machinery Technology Co ltd
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Priority to CN202120029575.1U priority Critical patent/CN214359604U/en
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Abstract

The application discloses a lifter, which comprises a hoistway, a top beam, a protective canopy, a suspension cage, a balance weight, a guide mechanism, a traction rope, a traction machine, a guide wheel, a control cabinet, a traveling cable and a code disc; the suspension cage and the balance weight are both positioned in the well; the protective canopy is used for covering the upper end of the shaft; the traction rope is wound on the traction machine and is connected with the suspension cage and the counterweight; the gravity of the cage and the balance weight is acted on a traction wheel of the traction machine through the traction rope, the traction rope and the traction wheel generate friction force by means of the gravity, the traction rope is driven to move through the friction force, and then the cage and the balance weight are driven to run up and down in an interactive mode. The suspension cage is located in the well, construction progress is not affected by external environment, and the suspension cage can be used all the time. The elevator system is additionally provided with the balance weight, so that the energy consumption of the traction machine is reduced. The traction rope winding ratio can be selected to be 1:1, 2:1 or 4:1 according to the building height, so that the energy consumption of the system is further reduced.

Description

Elevator machine
Technical Field
The invention relates to construction equipment for constructional engineering, in particular to a lifter and a mounting method of the lifter.
Background
The existing construction elevator is generally positioned outside a building, and can run up and down by guiding and supporting a cage of people or goods by virtue of a standard section, the outdoor elevator is greatly influenced by weather, generally adopts a hoisting steel wire rope or a rack and pinion direct drive, the existing domestic construction elevator (SC type construction elevator) is basically a rack and pinion construction elevator, the energy consumption of the elevator is high, the running noise is high, the standard section and the building body are frequently in flexible connection, the safety and reliability of the elevator are reduced in the weather of strong wind, rain and snow, the whole equipment is outdoors, and the surface protection requirement on the equipment is also high.
Disclosure of Invention
The invention provides a lifter and a mounting method of the lifter aiming at the problems.
The technical scheme adopted by the invention is as follows:
a lift comprises a hoistway, a top beam, a protective canopy, a suspension cage, a balance weight, a guide mechanism, a traction cable, a traction machine, a guide wheel, an electric control cabinet, a traveling cable and a code disc;
the guide mechanism comprises a guide mechanism for a suspension cage and a guide mechanism for a counterweight, which are arranged on a well, the guide mechanism is connected with the inner wall of the well through a combined support with adjustable length, the combined support is fixed with the inner wall of the well through an anchorage device, a flat bolt plate is arranged on the guide mechanism, a bolt shaft is arranged on the suspension cage and used for self-locking of the suspension cage, and the bolt shaft is provided with an electrical switch for verifying the state of the suspension cage;
the top beam is arranged at the upper end of the well or on a guide device at the top of the well, and is lifted periodically along with the lifting of the building, and the top beam is provided with a sling for hoisting during lifting operation;
the suspension cage and the counterweight are both positioned in the hoistway, the suspension cage is provided with an overspeed protection device matched with a suspension cage guide mechanism, and the overspeed protection device is arranged at the upper part or the lower part of the suspension cage; the protective canopy is used for covering the upper end of a hoistway, a hoist is fixed on the lower portion of the protective canopy and used for hoisting parts, and the hoist is of an electric type or a manual type;
the traction machine is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine is arranged on the suspension cage, the overhead beam, the pit of the well or the outer side of the well;
the coded disc is used for storing the traction cable and is arranged on the top beam, the pit of the well or the outer side of the well;
the traction cable is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
after the traction rope bypasses the traction machine, the traction rope is respectively connected with the lifting cage and the balance weight in series through the guide wheel, the tail end of the traction rope on the side of the lifting cage is fixed with the top beam through the rope head combination, the lifting cage overload monitoring device is arranged on the fixing plate of the rope head combination, the top end of the rope head combination is provided with the traction rope fracture protection device, the tail end of the traction rope on the side of the balance weight or the side of the lifting cage is connected with the coded disc, the coded disc can manually or automatically retract and release the rope, the gravity of the lifting cage and the balance weight is used on the traction wheel of the traction machine through the traction rope, the traction rope and the traction wheel generate friction force by means of the gravity, the traction rope is driven to move through the friction force, and then the lifting cage and the balance weight are driven to move in an up-down interactive mode.
Monitoring cage is located the well, and the construction progress does not receive external environment's influence, and current outdoor lift can't move the basement, also difficult adaptation building appearance singular operating mode, and outdoor lift generally need demolish when the outer facade of building decoration, and the cage of this application can use always in the well, can move the basement, also can adapt to different building appearance structures. The elevator adopts a suspension cage and a balance weight which are respectively arranged at two sides of a traction sheave of a traction machine, the suspension cage, the balance weight and the traction sheave are connected through a traction rope, and the traction rope and the traction sheave generate friction force by means of the gravity of the suspension cage, the balance weight and the traction sheave to realize traction transmission; energy consumption is reduced compared to outdoor elevators. In practical application, the traction rope can be connected with the suspension cages and the balance weights on two sides of the traction sheave in a rope winding mode of 1:1, 2:1 or 4:1, and a proper traction rope winding method is selected according to load and speed.
The guide mechanisms of the suspension cage and the counterweight enable the suspension cage and the counterweight to reciprocate up and down along a fixed path; the protective canopy can prevent rain, snow, gravel and the like from entering a well; the calabash can be used for the lift operation of part, and the hauler of this application is connected with automatically controlled cabinet through the retinue cable, receives the control operation of automatically controlled cabinet.
The traction cable can be of a friction transmission pair material structure such as a steel wire rope, a steel belt or a plastic-coated steel wire rope. The code wheel of this application is used for depositing the surplus that corresponds the haulage cable, and when the height of building is crescent, can adapt to building height and guiding mechanism's growth through the haulage cable surplus of depositing in the release code wheel, the length of constantly adjusting the haulage cable.
In one embodiment of the invention, the rope collecting self-locking device is further included, the tail end of the traction rope on the counterweight side or the cage side passes through the rope collecting self-locking device and then is connected with the code disc, the rope collecting self-locking device is used for locking the traction rope, the code disc and the rope collecting self-locking device are integrated together or are arranged separately, and the rope collecting self-locking device can be fixed on the bottom of the well, the outer side of the well or the top beam. The self-locking device for the rope can lock the traction rope, and the influence of the rotation of the coded disc on the lifting operation is prevented.
In one embodiment of the invention, the top beam is provided with a protective guardrail and a jacking limiting device, the protective guardrail is fixed or foldable, and the jacking limiting device is of a fixed or elastic telescopic structure; a monitoring device of a cage overspeed protection device is also fixed on the top beam; buffers are arranged at the lower parts of the suspension cage and the balance weight, and traction cable extended fracture protection devices are arranged on the buffers; the top of the suspension cage is provided with a guardrail or a movable working platform; the movable working platform can independently run through a hoist at the top of the protective canopy; a camera of the Internet of things module is arranged in the suspension cage; the counterweight is provided with an anti-falling mechanism; the door of the cage is provided with a locking mechanism, and the locking mechanism is of a manual type or an automatic type; along with the increase of the height of a building and the length of a traction cable, in order to reduce the influence of extra weight of a system on torque, a compensation cable is further arranged, one end of the compensation cable is connected with the lower end of the suspension cage, the other end of the compensation cable is connected with the balance weight, and a guide device is arranged at the bent part of the compensation cable; the allowance of the compensation cable is fixed on the suspension cage or the balance weight through the code wheel.
The monitoring cage provides multiple protections, and these settings are used to improve the safety and reliability of the operation of the equipment.
In one embodiment of the invention, the traction machine is mounted on the cage, the traction machine is mounted on the upper part or the lower part of the cage, an electric control cabinet of the traction machine is mounted on the cage or on the outer side of a well, the rope-collecting self-locking device and the first guide wheel are mounted on the top beam, the second guide wheel is mounted on the counterweight and can move up and down along with the counterweight; the first end of the traction cable is fixed with the top beam through the rope head combination after bypassing the traction machine, the second end of the traction cable bypasses the traction machine, then bypasses the second guide wheel downwards after passing through the first guide wheel upwards, and finally passes through the rope-collecting self-locking device and is connected with the code disc.
In one embodiment of the invention, the traction machine is mounted on a top beam, the top beam is provided with the rope-collecting self-locking device, a first guide wheel and an adjustable rope pressing wheel, the counterweight is provided with a second guide wheel which can move up and down along with the counterweight, the cage is provided with a third guide wheel which is fixed at the upper part or the lower part of the cage and can move up and down along with the cage; the first end of the traction rope is fixed with the top beam through a rope end combination; and the second end of the traction rope firstly bypasses the third guide wheel on the suspension cage downwards, then upwards sequentially passes through the first guide wheel, the rope pressing wheel and the traction machine or sequentially rewinds the traction rope through the traction machine and the first guide wheel, then bypasses the second guide wheel downwards, and finally passes through the rope collecting self-locking device to be connected with the code disc.
In one embodiment of the invention, the traction machine is installed in a pit of a hoistway, the top beam is provided with a rope-collecting self-locking device and two groups of first guide wheels, the counterweight is provided with a second guide wheel which can move up and down along with the counterweight, the cage is provided with a third guide wheel which is fixed on the upper part or the lower part of the cage and can move up and down along with the cage; the first end of the traction cable is fixed with the top beam through the rope head combination, the second end of the traction cable firstly bypasses the third guide wheel on the suspension cage downwards, then upwards passes through the first group of first guide wheels and then bypasses the traction machine downwards, and then upwards bypasses the second group of first guide wheels and then bypasses the second guide wheels downwards, and finally passes through the rope collecting self-locking device and is connected with the coded disc.
In one embodiment of the invention, the traction machine is installed in a pit of a hoistway, the top beam is provided with a rope-collecting self-locking device and two groups of first guide wheels, the counterweight is provided with a second guide wheel which can move up and down along with the counterweight, the cage is provided with a third guide wheel which is fixed on the upper part or the lower part of the cage and can move up and down along with the cage; the first end of the traction rope is fixed with the top beam through a rope end combination; the second end of the traction rope firstly bypasses the second guide wheel on the counterweight downwards, then upwards passes through the first group of first guide wheels and then bypasses the traction machine downwards, then upwards bypasses the second group of first guide wheels and then bypasses the third guide wheel downwards, and finally passes through the rope-collecting self-locking device and is connected with the coded disc.
In one embodiment of the invention, the traction machine is installed outside a hoistway, the top beam is provided with a rope-collecting self-locking device and two groups of first guide wheels, the counterweight is provided with a second guide wheel which can move up and down along with the counterweight, the cage is provided with a third guide wheel which is fixed at the upper part or the lower part of the cage and can move up and down along with the cage, and the lower part of the hoistway is provided with a fourth guide wheel and a fifth guide wheel; the first end of the traction rope is fixed with the top beam through a rope end combination; the second end of the traction rope firstly bypasses the third guide wheel on the cage downwards, then upwards passes through the first group of first guide wheels, then sequentially bypasses the fourth guide wheel, the traction wheel and the fifth guide wheel downwards, then bypasses the second group of first guide wheels upwards, bypasses the second guide wheel downwards, and finally passes through the rope collecting self-locking device and is connected with the coded disc, and the fourth guide wheel and the fifth guide wheel are used for adjusting the wrap angle of the traction rope on the traction machine, so that the traction force requirement of the elevator is met.
The application also discloses another elevator, which is characterized by comprising a well, a top beam, a protective canopy, a suspension cage, a balance weight, a guide mechanism, a traction cable, a traction machine, a guide wheel, an electric control cabinet, a traveling cable, a code disc and a rope-collecting self-locking device;
the guide mechanism comprises a guide mechanism for a suspension cage and a guide mechanism for a counterweight, which are arranged on the hoistway, the guide mechanism is connected with the inner wall of the hoistway through a combined bracket with adjustable length, and the combined bracket is fixed with the inner wall of the hoistway through an anchorage device; the guiding mechanism is provided with a flat-layer bolt plate, the suspension cage is provided with a bolt shaft for self-locking of the suspension cage, and the bolt shaft is provided with an electric switch for verifying the state of the suspension cage;
the top beam is arranged at the upper end of the well or fixed on a guide device at the top of the well, and is lifted periodically along with the rise of the building, and the top beam is provided with a sling for hoisting during lifting operation; a monitoring device of a cage overspeed protection device is also fixed on the top beam;
the suspension cage and the counterweight are both positioned in the hoistway, the suspension cage is provided with an overspeed protection device matched with a suspension cage guide mechanism, and the overspeed protection device is arranged at the upper part or the lower part of the suspension cage; the counterweight is provided with an anti-falling mechanism;
the protective canopy is used for covering the upper end of the hoistway, a hoist is fixed on the lower portion of the protective canopy, the hoist is used for hoisting a part of the guide mechanism or the movable working platform, and the movable working platform can independently run through the hoist of the protective canopy; the gourd is electric or manual;
the traction machine is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine is arranged on the outer side of the well;
the coded disc is arranged on the suspension cage and can be used for manually or automatically winding and unwinding the rope;
the first end of the traction rope is a rope head combination, the rope head combination is fixed with the balance weight, the two ends of the traction rope are connected with the suspension cage and the balance weight, the gravity of the suspension cage and the balance weight acts on a traction sheave of the traction machine through the traction rope, the traction rope and the traction sheave generate friction force by means of the gravity, torque is generated through the friction force, the traction rope is driven to move, and then the suspension cage or the balance weight is driven to run in an up-and-down interaction mode;
the traction cable is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
two groups of first guide wheels are installed on the top beam, and a fourth guide wheel and a fifth guide wheel are installed at the lower part of the well; the second end of the traction rope firstly passes through the first group of first guide wheels upwards, then sequentially bypasses the fourth guide wheel, the traction wheel and the fifth guide wheel downwards, then bypasses the second group of first guide wheels upwards, and then passes through the cage overload protection device and the traction rope fracture protection device downwards and then is connected with the coded disc, the wrap angle of the traction rope on the traction machine can be adjusted through the fourth guide wheel and the fifth guide wheel, and the traction rope can be led out from the fourth guide wheel and the fifth guide wheel after being rewound on the traction machine under special conditions so as to meet the traction force requirement of the elevator.
The application also discloses an installation method of the elevator, wherein the elevator is the elevator, and the installation method comprises the following steps:
(1) lifting the protective canopy to a specified position by means of a tower crane before lifting; then installing a landing door protection device;
(2) then the cage and the counter weight are positioned at the same level, the cage overspeed protection device is manually operated and clamps the guide mechanism, the bolt shaft of the cage is inserted into the flat bolt plate of the guide mechanism and is locked on the guide mechanism, so that the cage cannot move, and the counter weight anti-falling mechanism is positioned in a working state and is clamped on the guide mechanism;
(3) the linkage traction cable of the overspeed protection device and the lock catch of the rope-collecting self-locking device are loosened, so that the traction cable, the traveling cable and the compensating cable can be freely extended;
(4) then, the protective guard rails and the jacking limiting devices on the top beams are unfolded, and the top beams are hoisted to the specified height and fixed by means of tower cranes or calabashes of the protective canopy; or the top beam and the top guide rail are hoisted to a specified position together, the top beam is fixed through the bracket, and then the top guide rail is connected with the rest guide rails;
(5) then, hoisting the guide rail of the cage guide mechanism and the guide rail of the counterweight guide mechanism to corresponding positions by using a hoist for protecting the canopy and a movable working platform at the top of the cage, fixing the guide rails on the corresponding hoistway side walls by using a guide rail bracket with adjustable length, sequentially and alternately installing the guide rails of the cage guide mechanism and the counterweight guide mechanism, and temporarily not fastening the fasteners of the guide rails when the guide rails are installed for the first time; the movable working platform at the top of the cage can also independently run through a hoist at the top of the canopy, so that the installation of the cage and the guide rail of the counterweight is convenient;
(6) determining the lengths of the traction cable, the traveling cable and the compensating cable according to the jacking height, then locking a traction cable lock catch of the overspeed protection device and a lock catch of a rope-collecting self-locking device, and sequentially loosening a flat-layer bolt shaft and a counterweight anti-falling mechanism to enable the suspension cage and the counterweight to tension the traction cable by means of self gravity;
(7) when a guide rail of the guide mechanism is installed for the first time, sample frames need to be arranged at the bottom and the top of a hoistway, and the sample frames at the top can be realized by means of a protective guardrail of a top beam; when the lifting height is higher, an infrared or laser calibration device fixed on the top of the suspension cage or a movable working platform can be used for carrying out secondary calibration on the mounting precision of the suspension cage and the counterweight guide rail, for the area with the out-of-plumb degree, the adjustment can be carried out by means of a guide rail gasket, and the fastener of the guide rail is fastened after the calibration is finished;
(8) after the guide rail is installed, adjusting the position of the shaft information and the level signal device, then the suspension cage runs at a slow maintenance speed, and the lengths of the traction cable, the traveling cable and the compensation cable are sequentially rechecked; and then resetting the movable working platform, and checking whether the express train runs normally.
The invention has the beneficial effects that: the cage is located the well, and the construction progress does not receive external environment's influence, and current outdoor lift can't move the basement, also difficult adaptation building appearance singular operating mode, and outdoor lift generally need demolish when the outer facade of building decoration, and the cage of this application can use always in the well, can move the basement, also can adapt to different building appearance structures. The elevator adopts a suspension cage and a balance weight which are respectively arranged at two sides of a traction sheave of a traction machine, the suspension cage, the balance weight and the traction sheave are connected through a traction rope, and the traction rope and the traction sheave generate friction force by means of the gravity of the suspension cage, the balance weight and the traction sheave to realize traction transmission; energy consumption is reduced compared to outdoor elevators. In practical application, the traction rope can be connected with the suspension cages and the balance weights on two sides of the traction sheave in a rope winding mode of 1:1, 2:1 or 4:1, and a proper traction rope winding method is selected according to load and speed.
Description of the drawings:
FIG. 1 is a first winding pattern of example 1;
FIG. 2 is a second winding pattern of the embodiment 1;
FIG. 3 is a third winding pattern of the embodiment 1;
FIG. 4 is a fourth winding pattern of the embodiment 1;
FIG. 5 is a fifth winding pattern of the embodiment 1;
FIG. 6 is a sixth winding pattern according to example 1;
FIG. 7 is a seventh winding pattern according to example 1;
fig. 8 is a schematic view of an elevator of embodiment 2;
fig. 9 is a schematic top view of a canopy.
The figures are numbered:
1. a hoistway; 2. a top beam; 3. a protective canopy; 4. a suspension cage; 5. balancing weight; 6. a traction cable; 7. a traction machine; 8. Code disc; 9. a rope-retracting self-locking device; 10. a guide mechanism; 11. a sling; 12. an overspeed protection device; 13. a gourd; 14. combining rope ends; 15. a traction cable fracture protection device; 16. jacking limiting devices; 17. a water accumulation monitoring device; 18. a compensating cable; 19. a camera; 20. a first guide wheel; 21. a second guide wheel; 22. a third guide wheel; 23. A fourth guide wheel; 24. a fifth guide wheel; 30. protecting the guard rail; 31. an electric control cabinet; 32. a trailing cable; 33. a rope pressing wheel.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 7 and 9, the embodiment discloses an elevator, which includes a hoistway 1, a roof beam 2, a protective canopy 3, a suspension cage 4, a counterweight 5, a guide mechanism 10, a traction cable 6, a traction machine 7, a guide wheel, an electric control cabinet 31, a traveling cable 32 and a code wheel 8;
the guide mechanism 10 comprises a guide mechanism 10 for a suspension cage 4 and a guide mechanism 10 for a counterweight 5 which are arranged on the hoistway 1, the guide mechanism 10 is connected with the inner wall of the hoistway 1 through a combined bracket with adjustable length, and the combined bracket is fixed with the inner wall of the hoistway 1 through an anchorage device; a flat-layer bolt plate is arranged on the guide mechanism 10, a bolt shaft is arranged on the suspension cage and used for self-locking of the suspension cage, and an electric switch is arranged on the bolt shaft to verify the state of the bolt shaft; the leveling bolt plate is fixed on the guide mechanism by pressing codes;
the top beam 2 is arranged at the upper end of the well 1 or on a guide device at the top of the well and is lifted periodically along with the rise of the building, and a sling 11 is arranged on the top beam 2 and is used for hoisting during lifting operation;
the cage 4 and the counterweight 5 are both positioned in the hoistway 1, the cage 4 is provided with an overspeed protection device 12 matched with a guide mechanism 10 of the cage 4, and the overspeed protection device 12 is arranged at the upper part or the lower part of the cage 4;
the protective canopy 3 is used for covering the upper end of the well 1, a hoist 13 is fixed at the lower part of the protective canopy 3, the hoist 13 is used for hoisting parts, and the hoist 13 is electric type or manual type;
the traction machine 7 is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine 7 is arranged on the suspension cage 4, the overhead beam 2, a pit of the well 1 or the outer side of the well 1;
the traction cable is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
the coded disc 8 is used for storing the traction cable 6, and the coded disc 8 is arranged on the top beam 2, a pit of the well 1 or the outer side of the well 1;
after the traction rope 6 bypasses a traction machine 7, a cage 4 and a counterweight 5 are respectively connected in series through a guide wheel, the tail end of the traction rope 6 on the side of the cage 4 is fixed with a top beam 2 through a rope head combination 14, a cage 4 overload monitoring device is arranged on a fixing plate of the rope head combination 14, a traction rope fracture protection device 15 is arranged at the top end of the rope head combination 14, the tail end of the traction rope 6 on the side of the counterweight 5 or the side of the cage 4 is connected with a code wheel 8, the code wheel 8 can manually or automatically retract the rope, the gravity of the cage 4 and the counterweight 5 acts on a traction wheel of the traction machine 7 through the traction rope 6, the traction rope 6 and the traction wheel generate friction force by means of the gravity, the traction rope 6 is driven to move through the friction force, and then the cage 4 or the counterweight 5 is driven to alternately operate up and down.
Cage 4 is located well 1, and the construction progress does not receive external environment's influence, and current outdoor lift can't move the basement, also difficult adaptation building outward appearance singular operating mode, and outdoor lift generally need demolish when the outer facade of building decoration, and cage 4 of this application can use always in well 1, can move the basement, also can adapt to different building appearance structures. The elevator adopts a suspension cage 4 and a balance weight 5 which are respectively arranged at two sides of a traction wheel of a traction machine 7, the suspension cage 4, the balance weight 5 and the traction wheel are connected through a traction rope 6, and the traction rope 6 and the traction wheel generate friction force by means of the gravity of the suspension cage 4, the balance weight 5 and the traction wheel, so that traction transmission is realized; energy consumption is reduced compared to outdoor elevators. In practical application, the traction rope 6 can be connected with the suspension cage 4 and the counterweight 5 on two sides of the traction sheave in a rope winding mode of 1:1, 2:1 or 4:1, and an appropriate traction rope 6 winding method is selected according to the load and the speed.
The guide mechanisms of the suspension cage and the counterweight enable the suspension cage and the counterweight to reciprocate up and down along a fixed path; the protective canopy 3 can prevent rain, snow, gravel and the like from entering the hoistway 1; the hoist 13 can be used for the lift operation of part, and the hauler 7 of this application is connected with automatically controlled cabinet 31 through retinue cable 32, is operated by the control of automatically controlled cabinet 31.
The traction cable 6 can be a steel wire rope, a steel belt or a plastic-coated steel wire rope and other friction transmission pair material structures. The code wheel 8 of this application is used for depositing the surplus that corresponds haulage cable 6, and when the height of building is crescent gradually, can be through the haulage cable 6 surplus of depositing in the release code wheel 8, the growth that the length of constantly adjusting haulage cable 6 adapted building height and guiding mechanism 10.
During practical application, the elevator further comprises a rope-collecting self-locking device 9, the tail end of the traction cable 6 on the counterweight 5 side or the suspension cage 4 side is connected with the code wheel 8 after passing through the rope-collecting self-locking device 9, the rope-collecting self-locking device 9 is used for locking the traction cable 6, the code wheel 8 and the rope-collecting self-locking device 9 are integrated together or arranged separately, and the code wheel 8 can be fixed to the bottom of the well 1, the outer side of the well 1 or the top beam 2. The rope-collecting self-locking device 9 is arranged to lock the traction rope 6, and the influence of the rotation of the coded disc 8 on the lifting operation is prevented.
In actual application, the top beam 2 is provided with a protective guardrail 30 and a jacking limiting device 16, the protective guardrail 30 is fixed or foldable, and the jacking limiting device 16 is of a fixed or elastic telescopic structure; the lower parts of the suspension cage 4 and the counterweight 5 are provided with buffers, and the buffers are provided with traction cables 6 extended fracture protection devices; a monitoring device of a cage overspeed protection device is also fixed on the top beam; the top of the suspension cage 4 is provided with a guardrail or a movable working platform; the movable working platform can independently run through the hoist on the top of the protective canopy; a camera 19 of the internet of things module is arranged in the suspension cage 4; the counterweight is provided with an anti-falling mechanism; the door of the cage 4 is provided with a locking mechanism which is of a manual type or an automatic type; along with the increase of the height of a building and the length of the traction cable 6, in order to reduce the influence of extra weight of the system on torque, a compensation cable 18 is further arranged, one end of the compensation cable 18 is connected with the lower end of the suspension cage 4, the other end of the compensation cable is connected with the counterweight 5, and a guide device is arranged at the bending part of the compensation cable; the allowance of the compensation cable is fixed on the suspension cage or the balance weight through the code wheel. During actual operation, a water accumulation monitoring device 17 can be arranged at the bottom of the well.
The cage 4 provides multiple protections which are used to improve the safety and reliability of the operation of the apparatus. In actual application, the traction rope 6 can be wound in a ratio of 1:1, 2:1 or 4:1, and the proper winding method is selected according to the load and the speed, so that the energy consumption is reduced. The present embodiment may adopt the following various layout forms:
as shown in fig. 1, a traction machine 7 is installed on a cage 4, the traction machine 7 is installed on the upper part or the lower part of the cage 4, an electric control cabinet 31 of the traction machine 7 is installed on the cage 4 or on the outer side of a well 1, a rope-collecting self-locking device 9 and a first guide wheel 20 are installed on a top beam 2, a second guide wheel 21 is installed on a counterweight 5, and the second guide wheel 21 can move up and down along with the counterweight 5; the first end of the traction cable 6 is fixed with the top beam 2 through the rope head combination 14 after bypassing the traction machine 7, and the second end of the traction cable 6 bypasses the traction machine 7, then passes through the first guide wheel 20 upwards and then bypasses the second guide wheel 21 downwards, and finally passes through the rope-collecting self-locking device 9 and is connected with the coded disc 8.
As shown in fig. 2 and 3, the traction machine 7 is mounted on the top beam 2, the top beam 2 is provided with a rope-collecting self-locking device 9, a first guide wheel 20 and an adjustable rope pressing wheel 33, the counterweight 5 is provided with a second guide wheel 21, the second guide wheel 21 can move up and down along with the counterweight 5, the cage 4 is provided with a third guide wheel 22, and the third guide wheel 22 is fixed on the upper part or the lower part of the cage 4 and can move up and down along with the cage 4; the first end of the traction rope 6 is fixed with the top beam 2 through a rope end combination 14; the second end of the traction rope 6 firstly passes through the third guide wheel 22 on the suspension cage 4 downwards, then passes through the first guide wheel 20, the rope pressing wheel 33 and the traction machine 7 upwards in sequence or passes through the traction machine 7 and the first guide wheel 20 in sequence again in sequence, and then the traction rope 6 passes through the second guide wheel 21 downwards and is connected with the coded disc 8 through the rope collecting self-locking device 9.
As shown in fig. 4, the traction machine 7 is installed in a pit of the hoistway 1, the top beam 2 is provided with the rope-collecting self-locking device 9 and two sets of first guide wheels 20, the counterweight 5 is provided with the second guide wheels 21, the second guide wheels 21 can move up and down along with the counterweight 5, the cage 4 is provided with the third guide wheels 22, and the third guide wheels 22 are fixed on the upper part or the lower part of the cage 4 and can move up and down along with the cage 4; the first end of the traction cable 6 is fixed with the top beam 2 through the rope end combination 14, the second end of the traction cable 6 firstly passes through the third guide wheel 22 on the suspension cage 4 downwards, then passes through the first group of first guide wheels 20 upwards and then passes through the traction machine 7 downwards, then passes through the second group of first guide wheels 20 upwards and then passes through the second guide wheels 21 downwards, and finally is connected with the coded disc 8 through the rope-collecting self-locking device 9.
As shown in fig. 5, the traction machine 7 is installed in a pit of the hoistway 1, the top beam 2 is provided with the rope-collecting self-locking device 9 and two sets of first guide wheels 20, the counterweight 5 is provided with the second guide wheels 21, the second guide wheels 21 can move up and down along with the counterweight 5, the cage 4 is provided with the third guide wheels 22, and the third guide wheels 22 are fixed on the upper part or the lower part of the cage 4 and can move up and down along with the cage 4; the first end of the traction rope 6 is fixed with the top beam 2 through a rope end combination 14; the second end of the traction rope 6 firstly passes through the second guide wheel 21 on the balance weight 5 downwards, then passes through the first group of first guide wheels 20 upwards and then passes through the traction machine 7 downwards, then passes through the second group of first guide wheels 20 upwards and then passes through the third guide wheel 22 downwards, and finally passes through the rope-collecting self-locking device 9 to be connected with the coded disc 8.
As shown in fig. 6 and 7, the traction machine 7 is installed outside the hoistway 1, the top beam 2 is provided with the rope-collecting self-locking device 9 and two sets of first guide wheels 20, the counterweight 5 is provided with the second guide wheels 21, the second guide wheels 21 can move up and down along with the counterweight 5, the cage 4 is provided with the third guide wheels 22, the third guide wheels 22 are fixed on the upper part or the lower part of the cage 4 and can move up and down along with the cage 4, and the lower part of the hoistway 1 is provided with the fourth guide wheels 23 and the fifth guide wheels 24; the first end of the traction rope 6 is fixed with the top beam 2 through a rope end combination 14; the second end of the traction rope 6 firstly passes through the third guide wheel 22 on the cage 4 downwards, then passes through the first group of first guide wheels 20 upwards, then sequentially passes through the fourth guide wheel 23, the traction wheel and the fifth guide wheel 24 downwards, passes through the second group of first guide wheels 20 upwards, then passes through the second guide wheel 21 downwards, and finally passes through the rope-collecting self-locking device 9 to be connected with the coded disc 8, and the fourth guide wheel 23 and the fifth guide wheel 24 are used for adjusting the wrap angle of the traction rope 6 on the traction machine 7 so as to meet the traction force requirement of the elevator.
Example 2
As shown in fig. 8 and 9, the embodiment discloses an elevator, which comprises a hoistway 1, a roof beam 2, a protective canopy 3, a cage 4, a counterweight 5, a guide mechanism 10, a traction cable 6, a traction machine 7, a guide wheel, an electric control cabinet 31, a following cable 32, a code disc 8 and a rope-collecting self-locking device 9;
the guide mechanism 10 comprises a guide mechanism 10 for a suspension cage 4 and a guide mechanism 10 for a counterweight 5 which are arranged on the hoistway 1, the guide mechanism 10 is connected with the inner wall of the hoistway 1 through a combined bracket with adjustable length, and the combined bracket is fixed with the inner wall of the hoistway 1 through an anchorage device; a flat-layer bolt plate is arranged on the guide mechanism, a bolt shaft is arranged on the suspension cage and used for self-locking of the suspension cage, and the bolt shaft is provided with an electric switch for verifying the state of the suspension cage; the leveling bolt plate is fixed on the guide mechanism by pressing codes;
the top beam 2 is arranged at the upper end of the well 1 or is fixed on a guide device at the top of the well, and is lifted periodically along with the lifting of the building, and the top beam 2 is provided with a sling 11 for hoisting during lifting operation; a monitoring device of a cage overspeed protection device is also fixed on the top beam;
the cage 4 and the counterweight 5 are both positioned in the hoistway 1, the cage 4 is provided with an overspeed protection device 12 matched with a guide mechanism 10 of the cage 4, and the overspeed protection device 12 is arranged at the upper part or the lower part of the cage 4; the counterweight 5 is provided with an anti-falling mechanism;
the protective canopy 3 is used for covering the upper end of the hoistway 1, a hoist 13 is fixed on the lower portion of the protective canopy 3, the hoist 13 is used for hoisting a part of the guide mechanism 10 or a movable working platform on the top of the cage, and the movable working platform on the top of the cage can independently run through the hoist of the protective canopy; the gourd is electric or manual;
the traction machine 7 is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine 7 is installed on the outer side of the well 1;
the coded disc 8 is arranged on the suspension cage 4 and can be used for manually or automatically winding and unwinding the rope;
the first end of the traction rope 6 is a rope head combination 14, the rope head combination 14 is fixed with the balance weight 5, the two ends of the traction rope are connected with the suspension cage 4 and the balance weight 5, the gravity of the suspension cage and the balance weight acts on a traction sheave of the traction machine through the traction rope, the traction rope 6 and the traction sheave generate friction force by means of the gravity, torque is generated through the friction force, the traction rope 6 is driven to move, and then the suspension cage 4 or the balance weight 5 is driven to run up and down in an interactive mode;
the traction cable 6 is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
two groups of first guide wheels 20 are arranged on the top beam 2, and a fourth guide wheel 23 and a fifth guide wheel 24 are arranged at the lower part of the well 1; the second end of the traction cable 6 firstly passes through the first group of first guide wheels 20 upwards, then sequentially passes through the fourth guide wheel 23, the traction wheel and the fifth guide wheel 24 downwards, then passes through the second group of first guide wheels 20 upwards, then passes through the cage 4 overload protection device and the traction cable breakage protection device 15 downwards and is connected with the coded disc 8, the wrap angle of the traction cable 6 on the tractor 7 can be adjusted through the fourth guide wheel 23 and the fifth guide wheel 24, and the traction cable 6 can be led out from the fourth guide wheel 23 and the fifth guide wheel 24 after being re-wound on the tractor 7 under special conditions so as to meet the traction force requirement of the elevator. The structure of embodiment 1 can be referred to for the omitted parts of the elevator in the figure of this embodiment.
Example 3
The application also discloses an installation method of the elevator, wherein the elevator is the elevator of the embodiment 1 or 2, and the installation method comprises the following steps:
(1) lifting the protective canopy to a specified position by means of a tower crane before lifting; then installing a landing door protection device;
(2) then the cage and the counter weight are positioned at the same level, the cage overspeed protection device is manually operated and clamps the guide mechanism, the bolt shaft of the cage is inserted into the flat bolt plate of the guide mechanism and is locked on the guide mechanism, so that the cage cannot move, and the counter weight anti-falling mechanism is positioned in a working state and is clamped on the guide mechanism;
(3) the linkage traction cable of the overspeed protection device and the lock catch of the rope-collecting self-locking device are loosened, so that the traction cable, the traveling cable and the compensating cable can be freely extended;
(4) then, the protective guard rails and the jacking limiting devices on the top beams are unfolded, and the top beams are hoisted to the specified height and fixed by means of tower cranes or calabashes of the protective canopy; or the top beam and the top guide rail are hoisted to a specified position together, the top beam is fixed through the bracket, and then the top guide rail is connected with the rest guide rails;
(5) then, hoisting the guide rail of the cage guide mechanism and the guide rail of the counterweight guide mechanism to corresponding positions by using a hoist for protecting the canopy and a movable working platform at the top of the cage, fixing the guide rails on the corresponding hoistway side walls by using a guide rail bracket with adjustable length, sequentially and alternately installing the guide rails of the cage guide mechanism and the counterweight guide mechanism, and temporarily not fastening the fasteners of the guide rails when the guide rails are installed for the first time; the movable working platform at the top of the cage can also independently run through a hoist at the top of the canopy, so that the installation of the cage and the guide rail of the counterweight is convenient;
(6) determining the lengths of the traction cable, the traveling cable and the compensating cable according to the jacking height, then locking a traction cable lock catch of the overspeed protection device and a lock catch of a rope-collecting self-locking device, and sequentially loosening a flat-layer bolt shaft and a counterweight anti-falling mechanism to enable the suspension cage and the counterweight to tension the traction cable by means of self gravity;
(7) when a guide rail of the guide mechanism is installed for the first time, sample frames need to be arranged at the bottom and the top of a hoistway, and the sample frames at the top can be realized by means of a protective guardrail of a top beam; when the lifting height is higher, an infrared or laser calibration device fixed on the top of the suspension cage or a movable working platform can be used for carrying out secondary calibration on the mounting precision of the suspension cage and the counterweight guide rail, for the area with the out-of-plumb degree, the adjustment can be carried out by means of a guide rail gasket, and the fastener of the guide rail is fastened after the calibration is finished;
(8) after the guide rail is installed, adjusting the position of the shaft information and the level signal device, then the suspension cage runs at a slow maintenance speed, and the lengths of the traction cable, the traveling cable and the compensation cable are sequentially rechecked; and then resetting the movable working platform, and checking whether the express train runs normally.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields and are included in the scope of the present invention.

Claims (9)

1. A lift is characterized by comprising a hoistway, a top beam, a protective canopy, a suspension cage, a balance weight, a guide mechanism, a traction rope, a traction machine, a guide wheel, an electric control cabinet, a traveling cable and a code disc;
the guide mechanism comprises a guide mechanism for a suspension cage and a guide mechanism for a counterweight, which are arranged on a well, the guide mechanism is connected with the inner wall of the well through a combined support with adjustable length, the combined support is fixed with the inner wall of the well through an anchorage device, a flat bolt plate is arranged on the guide mechanism, a bolt shaft is arranged on the suspension cage and used for self-locking of the suspension cage, and the bolt shaft is provided with an electric switch for verifying the state of the suspension cage;
the top beam is arranged at the upper end of the well or on a guide device at the top of the well, and is lifted periodically along with the lifting of the building, and the top beam is provided with a sling for hoisting during lifting operation;
the suspension cage and the counterweight are both positioned in the hoistway, the suspension cage is provided with an overspeed protection device matched with a suspension cage guide mechanism, and the overspeed protection device is arranged at the upper part or the lower part of the suspension cage; the protective canopy is used for covering the upper end of a hoistway, a hoist is fixed on the lower portion of the protective canopy and used for hoisting parts, and the hoist is of an electric type or a manual type;
the traction machine is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine is arranged on the suspension cage, the overhead beam, the pit of the well or the outer side of the well;
the coded disc is used for storing the traction cable and is arranged on the top beam, the pit of the well or the outer side of the well;
the traction cable is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
after the traction rope bypasses the traction machine, the traction rope is respectively connected with the lifting cage and the balance weight in series through the guide wheel, the tail end of the traction rope on the side of the lifting cage is fixed with the top beam through the rope head combination, the lifting cage overload monitoring device is arranged on the fixing plate of the rope head combination, the top end of the rope head combination is provided with the traction rope fracture protection device, the tail end of the traction rope on the side of the balance weight or the side of the lifting cage is connected with the coded disc, the coded disc can manually or automatically retract and release the rope, the gravity of the lifting cage and the balance weight is used on the traction wheel of the traction machine through the traction rope, the traction rope and the traction wheel generate friction force by means of the gravity, the traction rope is driven to move through the friction force, and then the lifting cage and the balance weight are driven to move in an up-down interactive mode.
2. The elevator as claimed in claim 1, further comprising a rope-retrieving self-locking device, wherein the tail end of the traction rope on the counterweight side or the cage side passes through the rope-retrieving self-locking device and is connected with a code wheel, the rope-retrieving self-locking device is used for locking the traction rope, the code wheel and the rope-retrieving self-locking device are integrated or separately arranged, and the rope-retrieving self-locking device can be fixed on the bottom of the shaft, the outer side of the shaft or the top beam.
3. The elevator as claimed in claim 2, wherein the top beam is provided with a guard rail and a jacking limiting device, the guard rail is fixed or foldable, and the jacking limiting device is fixed or elastic telescopic; a monitoring device of a cage overspeed protection device is also fixed on the top beam; buffers are arranged at the lower parts of the suspension cage and the balance weight, and traction cable extended fracture protection devices are arranged on the buffers; the top of the suspension cage is provided with a guardrail or a movable working platform; the movable working platform can independently run through a hoist at the top of the protective canopy; a camera of the Internet of things module is arranged in the suspension cage; the counterweight is provided with an anti-falling mechanism; the door of the cage is provided with a locking mechanism, and the locking mechanism is of a manual type or an automatic type; along with the increase of the height of a building and the length of a traction cable, in order to reduce the influence of extra weight of a system on torque, a compensation cable is further arranged, one end of the compensation cable is connected with the lower end of the suspension cage, the other end of the compensation cable is connected with the balance weight, and a guide device is arranged at the bent part of the compensation cable; the allowance of the compensation cable is fixed on the suspension cage or the balance weight through the code wheel.
4. The elevator according to claim 2, wherein the traction machine is mounted on the cage, the traction machine is mounted on the upper part or the lower part of the cage, an electric control cabinet of the traction machine is mounted on the cage or on the outer side of the shaft, the rope-retracting self-locking device and the first guide wheel are mounted on the top beam, the second guide wheel is mounted on the counterweight and can move up and down along with the counterweight; the first end of the traction cable is fixed with the top beam through the rope head combination after bypassing the traction machine, the second end of the traction cable bypasses the traction machine, then bypasses the second guide wheel downwards after passing through the first guide wheel upwards, and finally passes through the rope-collecting self-locking device and is connected with the code disc.
5. The elevator as claimed in claim 2, wherein the traction machine is mounted on the top beam, the top beam is mounted with the rope-collecting self-locking device, the first guide wheel and the adjustable rope-pressing wheel, the counterweight is mounted with the second guide wheel which can move up and down along with the counterweight, the cage is mounted with the third guide wheel which is fixed on the upper or lower part of the cage and can move up and down along with the cage; the first end of the traction rope is fixed with the top beam through a rope end combination; and the second end of the traction rope firstly bypasses the third guide wheel on the suspension cage downwards, then upwards sequentially passes through the first guide wheel, the rope pressing wheel and the traction machine or sequentially rewinds the traction rope through the traction machine and the first guide wheel, then bypasses the second guide wheel downwards, and finally passes through the rope collecting self-locking device to be connected with the code disc.
6. The elevator as claimed in claim 2, wherein the traction machine is installed in a pit of a hoistway, the top beam is installed with a rope-retracting self-locking device and two sets of first guide wheels, the counterweight is installed with a second guide wheel which can move up and down along with the counterweight, the cage is installed with a third guide wheel which is fixed on the upper part or the lower part of the cage and can move up and down along with the cage; the first end of the traction cable is fixed with the top beam through the rope head combination, the second end of the traction cable firstly bypasses the third guide wheel on the suspension cage downwards, then upwards passes through the first group of first guide wheels and then bypasses the traction machine downwards, and then upwards bypasses the second group of first guide wheels and then bypasses the second guide wheels downwards, and finally passes through the rope collecting self-locking device and is connected with the coded disc.
7. The elevator as claimed in claim 2, wherein the traction machine is installed in a pit of a hoistway, the top beam is installed with a rope-retracting self-locking device and two sets of first guide wheels, the counterweight is installed with a second guide wheel which can move up and down along with the counterweight, the cage is installed with a third guide wheel which is fixed on the upper part or the lower part of the cage and can move up and down along with the cage; the first end of the traction rope is fixed with the top beam through a rope end combination; the second end of the traction rope firstly bypasses the second guide wheel on the counterweight downwards, then upwards passes through the first group of first guide wheels and then bypasses the traction machine downwards, then upwards bypasses the second group of first guide wheels and then bypasses the third guide wheel downwards, and finally passes through the rope-collecting self-locking device and is connected with the coded disc.
8. The elevator as claimed in claim 2, wherein the traction machine is installed outside the hoistway, the top beam is installed with a rope-retracting self-locking device and two sets of first guide wheels, the counterweight is installed with a second guide wheel which can move up and down along with the counterweight, the cage is installed with a third guide wheel which is fixed on the upper part or the lower part of the cage and can move up and down along with the cage, and the lower part of the hoistway is installed with a fourth guide wheel and a fifth guide wheel; the first end of the traction rope is fixed with the top beam through a rope end combination; the second end of the traction rope firstly bypasses the third guide wheel on the cage downwards, then upwards passes through the first group of first guide wheels, then sequentially bypasses the fourth guide wheel, the traction wheel and the fifth guide wheel downwards, then bypasses the second group of first guide wheels upwards, bypasses the second guide wheel downwards, and finally passes through the rope collecting self-locking device and is connected with the coded disc, and the fourth guide wheel and the fifth guide wheel are used for adjusting the wrap angle of the traction rope on the traction machine, so that the traction force requirement of the elevator is met.
9. A lift is characterized by comprising a well, a top beam, a protective canopy, a suspension cage, a balance weight, a guide mechanism, a traction rope, a traction machine, a guide wheel, an electric control cabinet, a traveling cable, a code disc and a rope-collecting self-locking device;
the guide mechanism comprises a guide mechanism for a suspension cage and a guide mechanism for a counterweight, which are arranged on the hoistway, the guide mechanism is connected with the inner wall of the hoistway through a combined bracket with adjustable length, and the combined bracket is fixed with the inner wall of the hoistway through an anchorage device; the guiding mechanism is provided with a flat-layer bolt plate, the suspension cage is provided with a bolt shaft for self-locking of the suspension cage, and the bolt shaft is provided with an electric switch for verifying the state of the suspension cage;
the top beam is arranged at the upper end of the well or fixed on a guide device at the top of the well, and is lifted periodically along with the rise of the building, and the top beam is provided with a sling for hoisting during lifting operation; a monitoring device of a cage overspeed protection device is also fixed on the top beam;
the suspension cage and the counterweight are both positioned in the hoistway, the suspension cage is provided with an overspeed protection device matched with a suspension cage guide mechanism, and the overspeed protection device is arranged at the upper part or the lower part of the suspension cage; the counterweight is provided with an anti-falling mechanism;
the protective canopy is used for covering the upper end of the hoistway, a hoist is fixed on the lower portion of the protective canopy, the hoist is used for hoisting a part of the guide mechanism or a movable working platform on the top of the suspension cage, and the movable working platform on the top of the suspension cage can independently run through the hoist of the protective canopy; the gourd is electric or manual;
the traction machine is driven by a permanent magnet synchronous gearless gear, a three-phase asynchronous gear, a servo stepping motor or a direct current motor;
the traction machine is arranged on the outer side of the well;
the coded disc is arranged on the suspension cage and can be used for manually or automatically winding and unwinding the rope;
the first end of the traction rope is a rope head combination, the rope head combination is fixed with the balance weight, the two ends of the traction rope are connected with the suspension cage and the balance weight, the gravity of the suspension cage and the balance weight acts on a traction sheave of the traction machine through the traction rope, the traction rope and the traction sheave generate friction force by means of the gravity, torque is generated through the friction force, the traction rope is driven to move, and then the suspension cage or the balance weight is driven to run in an up-and-down interaction mode;
the traction cable is a steel wire rope, a composite steel belt or a plastic-coated steel wire rope;
two groups of first guide wheels are installed on the top beam, and a fourth guide wheel and a fifth guide wheel are installed at the lower part of the well; the second end of the traction rope firstly passes through the first group of first guide wheels upwards, then sequentially bypasses the fourth guide wheel, the traction wheel and the fifth guide wheel downwards, then bypasses the second group of first guide wheels upwards, then passes through the cage overload protection device and the traction rope fracture protection device downwards and is connected with the coded disc, and the wrap angle of the traction rope on the traction machine can be adjusted through the fourth guide wheel and the fifth guide wheel.
CN202120029575.1U 2021-01-06 2021-01-06 Elevator machine Active CN214359604U (en)

Priority Applications (1)

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CN202120029575.1U CN214359604U (en) 2021-01-06 2021-01-06 Elevator machine

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Application Number Priority Date Filing Date Title
CN202120029575.1U CN214359604U (en) 2021-01-06 2021-01-06 Elevator machine

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CN214359604U true CN214359604U (en) 2021-10-08

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