CN105819310A - Dual traction drive lift with manual self-rescue slow descent function - Google Patents
Dual traction drive lift with manual self-rescue slow descent function Download PDFInfo
- Publication number
- CN105819310A CN105819310A CN201610339272.3A CN201610339272A CN105819310A CN 105819310 A CN105819310 A CN 105819310A CN 201610339272 A CN201610339272 A CN 201610339272A CN 105819310 A CN105819310 A CN 105819310A
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- driving
- brake block
- hoist ropes
- traction machine
- fixed pulley
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
Abstract
The invention relates to a dual traction drive lift with a manual self-rescue slow descent function. The dual traction drive lift comprises a car, a counterweight, a first fixed pulley, a traction rope, a main traction machine, an auxiliary traction machine, a car movable pulley, a counterweight movable pulley and a traction rope brake mechanism. The first fixed pulley, the main traction machine, the traction rope and the brake mechanism are mounted at the top of a shaftway. The car movable pulley is fixedly mounted at the top of the car, and the counterweight movable pulley is fixedly mounted at the top of the counterweight. The traction rope is of a closed annular structure and is sequentially wound around a traction wheel of the main traction machine, the first fixed pulley, a counterweight fixed pulley, a traction wheel of the auxiliary traction machine and the car movable pulley and then wound back to the traction wheel of the main traction machine. The traction rope brake mechanism comprises a first brake block, a second brake block and a drive device. The first brake block and the second brake block are driven by the drive device to compress or loosen the traction rope on the main traction machine and the auxiliary traction machine. The dual traction drive lift has two kinds of independent drive power, the first power can be switched into the second power when failing, and the situation that people are trapped in the lift due to power failures does not exist.
Description
Technical field
The present invention relates to a kind of double tracking-driven elevators with slow fall function of manually saving oneself, belong to elevator technology field.
Background technology
The conventional structure of traction elevator is to drive car to lift by traction machine, arrives the purpose of designated floor to reach to carry passenger.Traction machine be elevator uniquely drive power, be also in elevator passenger survival ensure vitals.When power-off occurs in unique traction machine, passenger will be trapped in car, or bigger accident occurs.
Summary of the invention
The technical problem to be solved is to provide a kind of double tracking-driven elevators with slow fall function of manually saving oneself, there are 2 independent traction power, when elevator accidental power failure causes the stranded ladder of passenger, be can be realized as the elevator of slow fall by switching traction power.
nullThe technical scheme is that a kind of double tracking-driven elevators with slow fall function of manually saving oneself，Including car、Counterweight、First fixed pulley、Hoist ropes and main traction machine，Described car and counterweight are positioned at inside hoistway，First fixed pulley and main traction machine are arranged on well headroom，Also include secondary traction machine、Car movable pulley、Counterweight movable pulley and hoist ropes arrestment mechanism，Described car movable pulley is fixedly mounted on car top，Described counterweight movable pulley is fixedly mounted on counterweight top，Described hoist ropes is closed ring structure，Walk around the traction sheave of main traction machine successively、First fixed pulley、Counterweight fixed pulley、The traction sheave of secondary traction machine、Car movable pulley，Further around the traction sheave returning main traction machine，Described hoist ropes arrestment mechanism is arranged on well headroom，Described hoist ropes arrestment mechanism includes the first brake block、Second brake block and driving means，Described first brake block can compress or unclamp the hoist ropes at the traction sheave of main traction machine，Described second brake block can compress or unclamp the hoist ropes at the traction sheave of secondary traction machine，Described driving means drives the first brake block and the second brake block to the compression of hoist ropes and to unclamp，And when described second brake block compresses the hoist ropes at the traction sheave of pair traction machine，Described first brake block unclamps hoist ropes，When described first brake block compresses the hoist ropes at the traction sheave of main traction machine，Described second brake block unclamps hoist ropes.
As preferably, described hoist ropes arrestment mechanism also includes support and first connecting rod, described support is fixed on well headroom, the middle part of described first connecting rod and support hinged composition lever construction, and described first brake block and the second brake block are connected to the two ends of first connecting rod.
As preferably, described driving means is made up of Breake Electromagnet, spring and armature, described Breake Electromagnet is fixed on well headroom, described first brake block is fixed with armature, and described spring is connected between Breake Electromagnet and armature, when Breake Electromagnet is energized, described Breake Electromagnet attracts armature compression spring, first brake block, away from the traction sheave of main traction machine, unclamps hoist ropes, and the second brake block coordinates hoist ropes compression with the traction sheave of secondary traction machine simultaneously；When Breake Electromagnet power-off, spring return function promotes armature to make the first brake block coordinate with the traction sheave of main traction machine and is compressed by hoist ropes, and the second brake block is away from the traction sheave of secondary traction machine simultaneously, unclamps hoist ropes.
As preferably, described well headroom is also installed with the second fixed pulley and the 3rd fixed pulley, and described hoist ropes was being walked around before and after car movable pulley respectively from the 3rd fixed pulley and the second fixed pulley.
As preferably, this elevator also includes that the most slow fall operating mechanism, the most slow described fall operating mechanism include the second driving shaft driving the traction sheave of secondary traction machine to rotate, and the rotation rotating through driving handle of described second driving shaft drives.
As preferably, the most slow described fall operating mechanism also includes the first power transmission shaft, between described first power transmission shaft and second driving shaft, double rolling key clutch is set, the outfan of described double rolling key clutch is connected with second driving shaft, the input of described double rolling key clutch is driven by the first power transmission shaft, and described driving handle connects the first power transmission shaft by driving structure.
As preferably, described driving handle is two, respectively it is arranged on the first driving handle outside hoistway and is arranged on cab interior the second driving handle, described driving structure is two, is respectively the first driving structure being connected with the first driving handle and the second driving structure being connected with the second driving handle.
As preferably, described first driving structure is a flexible axle, and one end of described flexible axle connects the first driving handle, and the other end connects the first power transmission shaft.
nullAs preferably，Described second drives structure to include the 4th fixed pulley、Endless chain、Endless chain clutch and counterweight，Described 4th fixed pulley is arranged on well headroom，Described first power transmission shaft and the 4th fixed pulley are in transmission connection，The rotation enabling the 4th fixed pulley drives the first power transmission shaft to rotate，Described counterweight is positioned at below car，Described counterweight top is provided with counterweight movable pulley，Described endless chain is around on the 4th fixed pulley and counterweight movable pulley，Described endless chain has two articles of chain segment being parallel to each other between the 4th fixed pulley and counterweight movable pulley，Wherein one or two chain segment of described endless chain pass vertically through top and the bottom of car，Described endless chain clutch is arranged on cab interior，A wherein chain segment of described endless chain passes from endless chain clutch，Described endless chain clutch has the driving wheels coordinated with endless chain，Described endless chain clutch also has to be made constitute between the second driving handle and driving wheels and release the clutch structure being in transmission connection，When between the second driving handle and driving wheels, composition is in transmission connection，The rotation of the second driving handle can drive driving wheels to rotate，The rotation of described driving wheels can drive endless chain upwards to move downward drive the 4th fixed pulley and rotate，When between the second driving handle and driving wheels, releasing is in transmission connection，Described endless chain and the 4th fixed pulley geo-stationary，Described car can upwards move downward by opposed annular chain.
As preferably, described hoist ropes is steel wire rope or steel band.
The invention has the beneficial effects as follows: use two traction machines, two traction machines are independently operated, and when main traction machine breaks down, can be switched to secondary traction machine at once, can realize the properly functioning of elevator.Hoist ropes is closed ring structure, when main traction machine works, secondary traction machine does not works, now hoist ropes is pressed on the traction sheave of secondary traction machine by hoist ropes arrestment mechanism, realize hoist ropes fixing relative to well headroom, the traction sheave of main traction machine rotates and makes to produce between hoist ropes and traction sheave grooving frictional force, thus drives the upper and lower lifting of car；When main traction machine breaks down, when being switched to secondary traction machine work, hoist ropes is pressed on the traction sheave of main traction machine by hoist ropes arrestment mechanism, and the traction sheave of secondary traction machine rotates and makes to produce between hoist ropes and traction sheave grooving frictional force, thus drives the upper and lower lifting of car.
When occurring causing elevator out of service due to main traction machine fault, elevator device is switched to secondary traction machine and is operated, and makes cage operation arrive each stop, can ask professional person's maintenance lift subsequently.
The present invention is additionally provided with the most slow fall operating mechanism, the traction sheave of Non-follow control pair traction machine rotates, when occurring causing the tired ladder of passenger due to the dump of main traction machine and secondary traction machine, being manually operated driving handle drives the traction sheave of secondary traction machine to rotate, car can be made smoothly to delay and to drop to nearest stop, it is achieved the rescue of tired ladder passenger.The most slow described fall operating mechanism and is provided with driving handle outside hoistway in car, when the passenger's impotentia in car operates manual slow-descending system, and the driving handle outside the operable hoistway of personnel outside car, it is achieved the slow fall of elevator.
The present invention has the positive effect that:
1. there are 2 independent driving power, when the first power breaks down, can switch to the second power, there is not the tired ladder of power failure.
When the most unpowered power supply causes tired ladder, in car, all can realize manually saving oneself outside car.
3. can effective guarantee passenger safety, eliminate passenger's feared state of mind, make elevator passenger overcome difficulties.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of traction steel band arrestment mechanism in the present invention；
In accompanying drawing, the list of parts representated by each label is as follows:
1. hoist ropes arrestment mechanism, the most main traction machine, 3. double rolling key clutch, 4. second driving shaft, 5. the second fixed pulley, 6. the 3rd fixed pulley, 7. the 4th fixed pulley, 8. secondary traction machine, 9. the first fixed pulley, 10. well headroom, 11. hoist ropes, 12. car movable pulleys, 13. counterweight movable pulleys, 14. first driving handles, 15. flexible axles, 16. counterweights, 17. endless chains, 18. endless chain clutches, 19. second driving handles, 20. cars, 21. counterweight movable pulleys, 22. counterweights, 23. first power transmission shafts, 101. Breake Electromagnet, 102. spring, 103. armature, 104. first brake block, 105. first connecting rod, 106. support, 107. second connecting rod, 108. second brake block.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining the present invention, is not intended to limit the scope of the present invention.
Embodiment 1
nullAs depicted in figs. 1 and 2，A kind of double tracking-driven elevators with slow fall function of manually saving oneself，Including car 20、Counterweight 16、First fixed pulley 9、Hoist ropes 11、Main traction machine 2、Secondary traction machine 8、Second fixed pulley 5、3rd fixed pulley 6、Car movable pulley 12、Counterweight movable pulley 13 and hoist ropes arrestment mechanism 1，Described car 20 and counterweight 16 are positioned at inside hoistway，First fixed pulley 9、Main traction machine 2 and hoist ropes arrestment mechanism 1 are arranged on well headroom 10，Described car movable pulley 12 is fixedly mounted on car 20 top，Described counterweight movable pulley 13 is fixedly mounted on counterweight 16 top，Described hoist ropes 11 is closed ring structure，Walk around the traction sheave of main traction machine 2 successively、First fixed pulley 9、Counterweight 16 fixed pulley、The traction sheave of secondary traction machine 8、3rd fixed pulley 6、Car movable pulley 12、Second fixed pulley 5，Further around the traction sheave returning main traction machine 2.Distance between described second fixed pulley 5 and the 3rd fixed pulley 6 arranges to be parallel to each other with two sections of hoist ropes 11 parts between the two and car movable pulley 12 and is advisable, and so can ensure that car 20 operationally stability is more preferable.And make the movement travel of the hoist ropes 11 in the same time identical with the movement travel of car 20.
Hoist ropes 11 in the present invention can use steel wire rope or steel band, as long as disclosure satisfy that use requires.
Described hoist ropes arrestment mechanism 1 is arranged on well headroom 10, and described hoist ropes arrestment mechanism 1 includes the first brake block 104, first connecting rod 105, support 106, second connecting rod the 107, second brake block 108 and driving means.Described support 106 is fixed on above well headroom 10, and the middle part of described first connecting rod 105 is hinged with the top of support 106, and described first brake block 104 and the second brake block 108 are connected to the two ends of first connecting rod 105.Described second brake block 108 is connected with first connecting rod 105 by second connecting rod 107, specifically, the lower end of described second connecting rod 107 connects the top of the first brake block 104, the upper end of described second connecting rod 107 connects first connecting rod 105.The top of described second brake block 108 is fixed with a connecting rod, and the lower end of described connecting rod is fixing with the second brake block 108 to be connected, and the upper end of connecting rod connects first connecting rod 105.
Breake Electromagnet 101, spring 102 and armature 103 that described driving means is fixedly connected sequentially under upper form, and described Breake Electromagnet 101 is fixed on well headroom 10, and described armature 103 is fixing with the connecting rod at the first brake block 104 top to be connected.The bottom of described first brake block 104 has the first curved working face that the traction sheave grooving with the traction sheave of main traction machine 2 mates, and this first curved working face can coordinate compression hoist ropes 11 with the traction sheave of main traction machine 2.The bottom of described second brake block 108 has the second curved working face that the traction sheave grooving with the traction sheave of secondary traction machine 8 mates, and this second curved working face can coordinate compression hoist ropes 11 with the traction sheave of secondary traction machine 8.
Described driving means drives the first brake block 104 and the second brake block 108 to the compression of hoist ropes 11 and to unclamp.When Breake Electromagnet 101 is energized, described Breake Electromagnet 101 produces magnetic and attracts armature 103, spring 102 is compressed by armature 103, now, first curved working face of the first brake block 104 is away from the traction sheave of main traction machine 2, unclamping hoist ropes 11, the second curved working face of the second brake block 108 coordinates with the traction sheave grooving of the traction sheave of secondary traction machine 8 and is compressed by hoist ropes 11 simultaneously；When Breake Electromagnet 101 power-off, the magnetic of Breake Electromagnet 101 disappears, spring 102 return promotes armature 103 to make the first curved working face of the first brake block 104 coordinate with the traction sheave grooving of the traction sheave of main traction machine 2 and is compressed by hoist ropes 11, second curved working face of the second brake block 108 is away from the traction sheave of secondary traction machine 8 simultaneously, unclamps hoist ropes 11.
nullThe present invention is when normally working，Use main traction machine 2 as the lifting drive of elevator，Now secondary traction machine 8 does not works，Breake Electromagnet 101 is in "on" position，Breake Electromagnet 101 attracts armature 103，Spring 102 is in compressive state，First curved working face of the first brake block 104 is away from the traction sheave of main traction machine 2，Owing to support 106 and first connecting rod 105 form lever construction，When the second brake block 108 being positioned at first connecting rod 105 one end is in lifts at the first brake block 104，The second brake block 108 being positioned at first connecting rod 105 other end is in down the state pressed，Now，Second curved working face of the second brake block 108 coordinates with the traction sheave grooving of the traction sheave of secondary traction machine 8 and is compressed by hoist ropes 11，Realize the fixing of the relative well headroom 10 of hoist ropes 11.When elevator runs, the traction sheave of main traction machine 2 rotates and makes to produce between hoist ropes 11 and traction sheave grooving frictional force, thus drives the upper and lower lifting of car 20.
When main traction machine 2 breaks down, it is switched to secondary traction machine 8 be operated at once, now, Breake Electromagnet 101 power-off, the magnetic of Breake Electromagnet 101 disappears, and spring 102 return promotes armature 103 to make the first curved working face of the first brake block 104 coordinate with the traction sheave grooving of the traction sheave of main traction machine 2 and compressed by hoist ropes 11, simultaneously under the leverage of first connecting rod 105, second curved working face of the second brake block 108, away from the traction sheave of secondary traction machine 8, unclamps hoist ropes 11.Now secondary traction machine 8 is started working, and drives its traction sheave to rotate and makes to produce between hoist ropes 11 and traction sheave grooving frictional force, thus drives the upper and lower lifting of car 20.
The elevator of the present invention also includes that the most slow fall operating mechanism, the most slow described fall operating mechanism include the first power transmission shaft 23, second driving shaft 4 and driving handle.The rotation of described driving handle drives the first power transmission shaft 23 to rotate, and the rotation of described first power transmission shaft 23 drives second driving shaft 4 to rotate, and described second driving shaft 4 drives the traction sheave of secondary traction machine 8 to rotate.
Described second driving shaft 4 is formed by the traction sheave of the first drive mechanism with secondary traction machine 8 and is in transmission connection, and this first drive mechanism uses existing drive mechanism, drives the traction sheave of secondary traction machine 8 to rotate as long as being capable of rotating of second driving shaft 4.Such as, this first drive mechanism uses turbine and worm structure, arranges a scroll bar section in the end, one end of second driving shaft 4, fixes a turbine coordinated with above-mentioned worm screw end on the wheel shaft of the traction sheave of secondary traction machine 8.
In order to avoid when secondary traction machine 8 works, the traction sheave of secondary traction machine 8 rotates and rotation is transferred to second driving shaft 4 and then is transferred on the first power transmission shaft 23, between the first power transmission shaft 23 and second driving shaft 4, double rolling key clutch 3 is set, can realize single-direction transmission, the outfan of double rolling key clutch 3 inverse can not drive to input.The outfan of described double rolling key clutch 3 is connected with second driving shaft 4, the input of described double rolling key clutch 3 is driven by the first power transmission shaft 23, the second drive mechanism is used to connect between input and first power transmission shaft 23 of double rolling key clutch 3, this second drive mechanism uses existing drive mechanism, drives the input of double rolling key clutch 3 to carry out rotating as long as being capable of rotating of the first power transmission shaft 23.Such as, this second drive mechanism uses gear transmission structure, an input piece rotating shaft of fixing connection at double rolling key clutch 3, driven gear is fixed in rotating shaft, the fixing driving gear engaged with driven gear in the end of the first power transmission shaft 23, first power transmission shaft 23 rotates and drives driving gear to rotate, and driving gear drives driven gear to rotate the input that rotational power is delivered to double rolling key clutch 3.
Described driving handle is by driving structure to connect the first power transmission shaft 23, thus drives the first power transmission shaft 23 to rotate.Described driving handle is two, is respectively arranged on the first driving handle 14 outside hoistway and is arranged on internal second driving handle 19 of car 20.Described driving structure is two, is respectively the first driving structure being connected with the first driving handle 14 and the second driving structure being connected with the second driving handle 19.
Described first driving structure is a flexible axle 15, and one end of described flexible axle 15 connects the first driving handle 14, and the other end connects the first power transmission shaft 23.Manually rotate the first driving handle 14 to be delivered to rotating through flexible axle 15 on the first power transmission shaft 23.In order to reduce the length of flexible axle as far as possible, described first driving handle 14 is arranged on the top layer stop of elevator.
Described second drives structure to include the 4th fixed pulley 7, endless chain 17, endless chain clutch 18 and counterweight 22, described 4th fixed pulley 7 is arranged on well headroom 10, the 3rd drive mechanism is used to be connected between described first power transmission shaft 23 and the 4th fixed pulley 7,3rd drive mechanism uses existing drive mechanism, as long as the rotation being capable of the 4th fixed pulley 7 can drive the first power transmission shaft 23 to carry out rotating.Such as, 3rd drive mechanism uses Bevel Gear Transmission structure, first power transmission shaft 23 fixes driven wheel of differential, described 4th fixed pulley 7 has the rotary shaft being secured to connect, this rotary shaft is fixed on the drive bevel gear of driven wheel of differential engagement, the rotation of the 4th fixed pulley 7 drives drive bevel gear to rotate, and drive bevel gear rotates and drives driven wheel of differential rotation that rotational power is delivered to the first power transmission shaft 23.
Described counterweight 22 is positioned at below car 20, described counterweight 22 top is provided with counterweight movable pulley 21, described endless chain 17 is around on the 4th fixed pulley 7 and counterweight movable pulley 21, described endless chain 17 has two articles of chain segment being parallel to each other between the 4th fixed pulley 7 and counterweight movable pulley 21, wherein one or two chain segment of described endless chain 17 pass vertically through top and the bottom of car 20, in the present embodiment, two chain segment of described endless chain 17 all pass vertically through top and the bottom of car 20, have gap between two chain segment and the car 20 of endless chain 17.
It is internal that described endless chain clutch 18 is arranged on car 20, and a wherein chain segment of described endless chain 17 passes from endless chain clutch 18.Concrete structure is, described endless chain clutch 18 has a shell, endless chain 17 wherein one section be positioned at this enclosure, two ends pass top and the bottom of this shell, the top of this shell and bottom offer the through hole of correspondence, and the size of through hole must assure that endless chain 17 can carry out the most downward motion by this shell relatively swimmingly.
The enclosure of described endless chain clutch 18 has the driving wheels coordinated with endless chain 17, described endless chain clutch 18 also has to be made constitute between the second driving handle 19 and driving wheels and release the clutch structure being in transmission connection, when between the second driving handle 19 and driving wheels, composition is in transmission connection, the rotation of the second driving handle 19 can drive driving wheels to rotate, the rotation of described driving wheels can drive endless chain 17 upwards to move downward drive the 4th fixed pulley 7 and rotate, when between the second driving handle 19 and driving wheels, releasing is in transmission connection, described endless chain 17 and the 4th fixed pulley 7 geo-stationary, described car 20 can upwards move downward by opposed annular chain 17.
In the present embodiment, described driving wheels include two driven pulleys and a drivewheel.Described drivewheel and driven pulley are rotationally connected by the shell of rotating shaft with endless chain clutch 18 respectively.Said two driven pulley lays respectively at the both sides of one section of endless chain 17 of the enclosure at endless chain clutch 18, and is all formed with this section of endless chain 17 and be in transmission connection, and this is in transmission connection and can realize with endless chain 17 meshed gears by being arranged to by driven pulley.Described drivewheel is formed with one of them driven pulley and is in transmission connection, and this is in transmission connection by being all provided with being set to pitch wheel by drivewheel and driven pulley.
Described second driving handle 19 has a transmission segment, the transmission segment of the second driving handle 19 penetrates the enclosure of endless chain clutch 18, the sleeve that the transmission segment with the second driving handle 19 coordinates it is fixedly installed on the shell of described endless chain clutch 18, described second driving handle 19 can rotate relative to this sleeve, and can slide by relative sleeve in the axial direction.The transmission segment of described second driving handle 19 is coaxial with the rotating shaft of drivewheel.The groove that the inner of transmission segment with the second driving handle 19 coordinates is set in the rotating shaft of described drivewheel, the inner cooperation of the transmission segment of described groove and the second driving handle 19 can be interference fit, or by shapes such as the inner of the transmission segment of the second driving handle 19 and the groove polygons being arranged to mutual matched in clearance, as long as when the inner and the groove fit of the transmission segment of the second driving handle 19, it is possible to the rotation realizing the second driving handle 19 drives drivewheel to carry out rotating.Said structure i.e. constitutes and makes constitute between the second driving handle 19 and driving wheels and release the clutch structure being in transmission connection.When the groove in the inner rotating shaft inserting driving shaft of the transmission segment of the second driving handle 19 is formed and coordinates, the second driving handle 19 is formed with drivewheel and is in transmission connection, rotates the second driving handle 19 and drivewheel can be driven to rotate.When elevator is properly functioning, the transmission segment of the second driving handle 19 is away from the groove in the rotating shaft of driving shaft, second driving handle 19 is in drivewheel and releases the state being in transmission connection, endless chain 17 pulls the lower state being in geo-stationary with the 4th fixed pulley 7 in the action of gravity of counterweight 22, when car 20 is moved upwardly or downwardly, endless chain 17 can drive driven pulley to rotate, and driven pulley can drive drivewheel to rotate, and now, the rotation of drivewheel does not interferes with the second driving handle 19.Certainly, the present invention can also use other clutch structures of the prior art, as long as being capable of the above-mentioned functions of the present invention.
In the running of elevator, in fact it could happen that following 3 kinds of situations:
1., when any fault occurs in main traction machine, control system can make elevator temporarily cease operation.Main traction machine is braked, and then makes the Breake Electromagnet power-off of hoist ropes arrestment mechanism, and armature is released, spring reset, and hoist ropes is pressed on the traction sheave of main traction machine by the first brake block.Controller automatically switches to secondary traction machine work, makes passenger run to each stop, can ask professional person's maintenance lift subsequently.
2. when the unexpected power-off of system causes the stranded ladder of passenger, main traction machine power-off brake, the Breake Electromagnet power-off of hoist ropes arrestment mechanism simultaneously, spring return function promotes and presses under armature, first brake block is pressed on hoist ropes on the traction sheave of main traction machine, and the second brake block departs from the hoist ropes on the traction sheave of secondary traction machine.The active section of the second driving handle presses at this moment passenger need to operate car drive the drivewheel of wheels, the active section making the second driving handle and the drivewheel driving wheels are formed and are in transmission connection, then the second driving handle is operated, the active section making the second driving handle rotates, rotational power is transferred to endless chain by driving wheels, the 4th fixed pulley is driven to rotate by endless chain, 4th fixed pulley drives the first drive axis, the rotation of the first power transmission shaft drives double rolling key clutch to rotate and drives second driving shaft rotation, second driving shaft drives the traction sheave of secondary traction machine to rotate.After the traction sheave of secondary traction machine rotates, then hoist ropes drives car to delay and is down to nearest stop.Opening elevator door, passenger goes down elevator, has saved oneself.Elevator door cuts out, and waits that professional overhauls elevator.
3. when the unexpected power-off of system causes passenger's stranded ladder, as when in car, fall operating mechanism is manually delayed in the operation of passenger's impotentia, first driving handle of the outer personnel's operable top layer stop of car, the first driving handle is made to rotate, rotational power is transferred to the first power transmission shaft by flexible axle, the rotation of the first power transmission shaft drives double rolling key clutch to rotate and drives second driving shaft rotation, and second driving shaft drives the traction sheave of secondary traction machine to rotate.After the traction sheave of secondary traction machine rotates, then hoist ropes drives car to delay and is down to nearest stop.Opening elevator door, passenger goes down elevator, has saved oneself.Elevator door cuts out, and waits that professional overhauls elevator.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
- null1. double tracking-driven elevators with slow fall function of manually saving oneself，Including car (20)、Counterweight (16)、First fixed pulley (9)、Hoist ropes (11) and main traction machine (2)，Described car (20) and counterweight (16) are positioned at inside hoistway，First fixed pulley (9) and main traction machine (2) are arranged on well headroom (10)，It is characterized in that，Also include secondary traction machine (8)、Car movable pulley (12)、Counterweight movable pulley (13) and hoist ropes arrestment mechanism (1)，Described car movable pulley (12) is fixedly mounted on car (20) top，Described counterweight movable pulley (13) is fixedly mounted on counterweight (16) top，Described hoist ropes (11) is closed ring structure，Walk around the traction sheave of main traction machine (2) successively、First fixed pulley (9)、Counterweight (16) fixed pulley、The traction sheave of secondary traction machine (8)、Car movable pulley (12)，Further around the traction sheave returning main traction machine (2)，Described hoist ropes arrestment mechanism (1) is arranged on well headroom (10)，Described hoist ropes arrestment mechanism (1) includes the first brake block (104)、Second brake block (108) and driving means，Described first brake block (104) can compress or unclamp the hoist ropes (11) at the traction sheave of main traction machine (2)，Described second brake block (108) can compress or unclamp the hoist ropes (11) at the traction sheave of secondary traction machine (8)，Described driving means drives the first brake block (104) and the second brake block (108) to the compression of hoist ropes (11) and to unclamp，And during hoist ropes (11) at the traction sheave that described second brake block (108) compresses secondary traction machine (8)，Described first brake block (104) unclamps hoist ropes (11)，When described first brake block (104) compresses hoist ropes (11) at the traction sheave of main traction machine (2)，Described second brake block (108) unclamps hoist ropes (11).
- Double tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 1, it is characterized in that, described hoist ropes arrestment mechanism (1) also includes support (106) and first connecting rod (105), described support (106) is fixed on well headroom (10), the middle part of described first connecting rod (105) and support (106) hinged composition lever construction, described first brake block (104) and the second brake block (108) are connected to the two ends of first connecting rod (105).
- nullDouble tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 2，It is characterized in that，Described driving means is by Breake Electromagnet (101)、Spring (102) and armature (103) composition，Described Breake Electromagnet (101) is fixed on well headroom (10)，Described first brake block (104) is fixed with armature (103)，Described spring (102) is connected between Breake Electromagnet (101) and armature (103)，When Breake Electromagnet (101) is energized，Described Breake Electromagnet (101) attracts armature (103) compression spring (102)，First brake block (104) is away from the traction sheave of main traction machine (2)，Unclamp hoist ropes (11)，Second brake block (108) coordinates hoist ropes (11) compression with the traction sheave of secondary traction machine (8) simultaneously；When Breake Electromagnet (101) power-off, spring (102) return promotes armature (103) to make the first brake block (104) coordinate with the traction sheave of main traction machine (2) and is compressed by hoist ropes (11), second brake block (108) is away from the traction sheave of secondary traction machine (8) simultaneously, unclamps hoist ropes (11).
- Double tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 1, it is characterized in that, described well headroom (10) is also installed with the second fixed pulley (5) and the 3rd fixed pulley (6), and described hoist ropes (11) was being walked around before and after car movable pulley (12) respectively from the 3rd fixed pulley (6) and the second fixed pulley (5).
- 5. double tracking-driven elevators of slow fall function of manually saving oneself according in Claims 1-4 any one described having, it is characterized in that, this elevator also includes the most slow fall operating mechanism, the most slow described fall operating mechanism includes the second driving shaft (4) driving the traction sheave of secondary traction machine (8) to rotate, and the rotation rotating through driving handle of described second driving shaft (4) drives.
- Double tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 5, it is characterized in that, the most slow described fall operating mechanism also includes the first power transmission shaft (23), between described first power transmission shaft (23) and second driving shaft (4), double rolling key clutch (3) is set, the outfan of described double rolling key clutch (3) is connected with second driving shaft (4), the input of described double rolling key clutch (3) is driven by the first power transmission shaft (23), described driving handle connects the first power transmission shaft (23) by driving structure.
- Double tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 6, it is characterized in that, described driving handle is two, respectively it is arranged on the first driving handle (14) outside hoistway and is arranged on internal second driving handle (19) of car (20), described driving structure is two, is respectively the first driving structure being connected with the first driving handle (14) and the second driving structure being connected with the second driving handle (19).
- Double tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 7, it is characterized in that, described first driving structure is a flexible axle (15), one end of described flexible axle (15) connects the first driving handle (14), and the other end connects the first power transmission shaft (23).
- nullDouble tracking-driven elevators with slow fall function of manually saving oneself the most according to claim 7，It is characterized in that，Described second drives structure to include the 4th fixed pulley (7)、Endless chain (17)、Endless chain clutch (18) and counterweight (22)，Described 4th fixed pulley (7) is arranged on well headroom (10)，Described first power transmission shaft (23) is in transmission connection with the 4th fixed pulley (7)，The rotation enabling the 4th fixed pulley (7) drives the first power transmission shaft (23) to rotate，Described counterweight (22) is positioned at car (20) lower section，Described counterweight (22) top is provided with counterweight movable pulley (21)，Described endless chain (17) is around on the 4th fixed pulley (7) and counterweight movable pulley (21)，Described endless chain (17) has two articles of chain segment being parallel to each other between the 4th fixed pulley (7) and counterweight movable pulley (21)，Wherein one or two chain segment of described endless chain (17) pass vertically through top and the bottom of car (20)，It is internal that described endless chain clutch (18) is arranged on car (20)，A wherein chain segment of described endless chain (17) passes from endless chain clutch (18)，Described endless chain clutch (18) has the driving wheels coordinated with endless chain (17)，Described endless chain clutch (18) also has to be made constitute between the second driving handle (19) and driving wheels and release the clutch structure being in transmission connection，When between the second driving handle (19) and driving wheels, composition is in transmission connection，The rotation of the second driving handle (19) can drive driving wheels to rotate，The rotation of described driving wheels can drive endless chain (17) upwards to move downward drive the 4th fixed pulley (7) and rotate，When between the second driving handle (19) and driving wheels, releasing is in transmission connection，Described endless chain (17) and the 4th fixed pulley (7) geo-stationary，Described car (20) can upwards move downward by opposed annular chain (17).
- 10. double tracking-driven elevators of slow fall function of manually saving oneself according in Claims 1-4 any one described having, it is characterised in that described hoist ropes (11) is steel wire rope or steel band.
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| CN110482360A (en) * | 2019-10-15 | 2019-11-22 | 沈阳远大智能工业集团股份有限公司 | Self-help apparatus in carriage |
| CN111703996A (en) * | 2020-06-23 | 2020-09-25 | 黄松檀 | Safety device for preventing accidental movement of lift car for passenger elevator |
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| CN111532929A (en) * | 2020-03-31 | 2020-08-14 | 日立电梯（中国）有限公司 | Rescue control method for machine-room-less elevator, machine-room-less elevator and rescue auxiliary device |
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| CN105819310B (en) | 2018-03-27 |
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