CN212687276U - Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system - Google Patents
Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system Download PDFInfo
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- CN212687276U CN212687276U CN202020747215.0U CN202020747215U CN212687276U CN 212687276 U CN212687276 U CN 212687276U CN 202020747215 U CN202020747215 U CN 202020747215U CN 212687276 U CN212687276 U CN 212687276U
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Abstract
The utility model discloses a set up permanent magnetism vortex retarder's elevator haulage equipment and elevator system, elevator haulage equipment includes: an equipment support; the traction sheave, the first magnetic action part, the retarding rotor, the second magnetic action part and the rotor clamping device; the traction sheave comprises a traction sheave base body, a first magnetic part mounting seat and a cam; the first magnetic action component is arranged on the inner wall of the first magnetic component mounting seat; the slow rotor comprises a second magnetic part mounting seat and a chuck; the second magnetic action component is arranged on the outer side cylinder wall of the second magnetic component mounting seat; the retarding rotor is arranged in the inner cavity of the traction sheave; the rotor screens device is installed on the equipment support. The elevator system comprises an elevator car and a hoisting device arranged in the building, the rope connecting the elevator car and the traction sheave of the hoisting device. The utility model discloses elevator hauls equipment's use, avoided because the braking action that exists when directly adopting the driving sheave to fall the braking is violent, harm passenger in the car easily to and cause the problem of passenger psychology panic.
Description
Technical Field
The utility model belongs to the technical field of elevator system safety, especially relate to an elevator traction equipment who sets up permanent magnetism vortex retarder to and an elevator system.
Background
With the development of cities and the increasing urban population of modern centers, super high-rise buildings are emerging continuously, and high-speed elevators are important tools for vertical transportation of the super high-rise buildings, are equivalent to 'vertically moving automobiles', and are indispensable transportation tools for modern city life. However, in the operation of elevators for many years, various elevator safety accidents also pose a great threat to the life and property safety of people, so that ensuring the safe operation of elevators in elevator use is an important work content of elevator manufacturers and elevator management units.
In elevator equipment which is put into use nowadays, the elevator overspeed is mainly realized by a brake caliper, a speed limiter, a safety gear, a shaft bottom buffer spring and the like, the speed limiter monitors and controls the speed of a car at any time, and when the overspeed condition occurs, a signal can be sent out in time, so that mechanical action is generated to cut off a power supply circuit, and the brake caliper works to brake a traction machine. If the elevator still can not brake, the safety gear arranged at the bottom of the car acts to forcibly stop the car. The buffer spring device at the bottom end of the hoistway can reduce the impact force that the elevator hits the ground when falling, but the effect is limited. Although elevators are equipped with the above-mentioned overspeed protection device, the occurrence of elevator accidents cannot be completely avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a set up elevator haulage equipment and elevator system of permanent magnetism vortex retarder to there is the problem of safe operation hidden danger in solving current elevator system.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides an elevator traction equipment who sets up permanent magnetism vortex retarder, it includes: an equipment support; the traction sheave, the first magnetic action part, the retarding rotor, the second magnetic action part and the rotor clamping device; the traction sheave comprises a traction sheave base body, a first magnetic part mounting seat with a cylindrical structure and a cam, wherein the magnetic part mounting seat is connected between the traction sheave base body and the cam; the traction sheave is arranged on the equipment support; the first magnetic action component is arranged on the inner wall of the first magnetic component mounting seat; the slow rotor comprises a second magnetic part mounting seat and a chuck, and the chuck is arranged on one side of the second magnetic part mounting seat; the second magnetic action component is arranged on the outer side cylinder wall of the second magnetic component mounting seat; the retarding rotor is arranged in the inner cavity of the traction sheave through a central shaft, so that the second magnetic action part corresponds to the first magnetic action part in position; the first magnetic action part is a metal conductor, and the second magnetic action part is a permanent magnet; or the first magnetic action part is a permanent magnet, and the second magnetic action part is a metal conductor; the rotor clamping device is installed on the equipment support, and the rotor clamping device and the chuck act to brake the retarding rotor when the rotating speed of the traction sheave exceeds a set threshold value.
The utility model discloses as above set up elevator haulage equipment of permanent magnetism vortex retarder, further, second magnetism part mount pad includes urceolus, go-between and inner tube, and the go-between setting is between urceolus and inner tube, and the permanent magnet interval is installed on the outer wall of urceolus.
The utility model discloses as above set up permanent magnetism vortex retarder's elevator haulage equipment, further, set up the bearing between inner tube and the center pin.
The utility model discloses an elevator traction equipment that sets up permanent magnetism vortex retarder as above, further, rotor screens device includes pawl mount pad, pawl, gyro wheel and elastomeric element, the pawl mount pad is fixed on the equipment support, and the pawl articulates on the pawl mount pad, and the one end of pawl sets up screens breach, and the gyro wheel is installed to the other end; the elastic component enables the roller to press the outer edge of the cam of the traction sheave; the clamping gap of the pawl corresponds to the bulge of the chuck.
The utility model discloses an elevator traction equipment who sets up permanent magnetism vortex retarder as above, further, the pawl includes screens portion and gyro wheel installation department, and the pawl is L font structure; the elastic part is a spring, one end of the spring is connected with the clamping part, the other end of the spring is connected with the equipment support, and the spring pulls the clamping part to enable the roller of the roller mounting part to be tightly attached to the outer edge of the cam.
The utility model discloses an elevator traction equipment who sets up permanent magnetism vortex retarder as above, further, the pawl includes screens portion and gyro wheel installation department, and the pawl is L font structure; the elastic component is a spring, one end of the spring is connected with the roller mounting part, the other end of the spring is connected with the equipment support, and the spring pushes the roller mounting part to enable the roller to be tightly attached to the outer edge of the cam.
The utility model discloses as above the elevator haulage equipment that sets up permanent magnetism vortex retarder further, still include elasticity adjusting device, elasticity adjusting device connects between spring and equipment support.
An elevator system, the elevator system comprising an elevator car and a traction device disposed in a structure, a rope connecting the elevator car and a traction sheave of the traction device; the traction equipment is the elevator traction equipment provided with the permanent magnet eddy current retarder.
The utility model discloses as above elevator system, further, set up the flat bed support on the elevator car.
Because the utility model discloses elevator traction equipment's use, when elevator car takes place the stall and falls, slows down traction wheel and elevator car before traction wheel band-type brake, has avoided because the braking action that exists when directly adopting the traction wheel to fall the braking is violent, damages passenger in the car easily and causes the problem of passenger psychology panic. Meanwhile, the elevator falling event caused by the fault of the brake system of the traction wheel can be avoided, and double-layer protection is provided for the safe operation of the elevator car.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:
fig. 1 is a schematic view of an elevator traction apparatus provided with a permanent magnet eddy current retarder according to an embodiment;
fig. 2 is a schematic front view of an elevator traction apparatus according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of an elevator traction apparatus according to an embodiment of the present invention;
fig. 4 is a schematic view of a traction sheave according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a traction sheave according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating the installation of the retarder rotor and the traction sheave according to an embodiment of the present invention;
fig. 7 is a schematic cross-sectional view of a retard rotor and a traction sheave according to an embodiment of the present invention;
fig. 8 is a schematic view of the connection and position relationship of the cam, the boss and the rotor detent.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a device support, 2, a traction sheave, 21, a traction sheave base body, 22, a first magnetic part mounting seat, 23, a cam, 3, a retarding rotor, 31, an outer cylinder, 32, a connecting ring, 33, an inner cylinder, 34, a chuck, 35, a bulge, 4, a rotor clamping device, 41, a pawl mounting seat, 42, a clamping part, 43, a roller mounting part, 44, a roller, 45, an elastic part, 46, a clamping notch, 5, a metal cylinder, 6, a central shaft, 7, a bearing, 8 and a permanent magnet.
Detailed Description
Hereinafter, embodiments of an elevator traction apparatus and an elevator system provided with a permanent magnet eddy current retarder according to the present invention will be described with reference to the accompanying drawings.
The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.
Fig. 1-7 show that the utility model relates to an elevator traction equipment of setting permanent magnetism vortex retarder of embodiment, it includes:
an apparatus support 1; as shown in connection with fig. 1, the equipment support comprises a base and a housing, on which base are also mounted other components necessary for the operation of the hoisting equipment, which components and structures are identical to those of the hoisting machine of the prior art.
The traction sheave 2 comprises a traction sheave base body 21, a first magnetic part mounting seat 22 of a cylindrical structure and a cam 23, wherein the magnetic part mounting seat is connected between the traction sheave base body 21 and the cam 23; the traction sheave 2 is arranged on the equipment support 1; the first magnetic action component is arranged on the inner wall of the first magnetic component mounting seat 22; the slow speed rotor 3, the slow speed rotor 3 includes the second magnetic part mount pad and chuck 34, the chuck 34 is set up in one side of the second magnetic part mount pad; the second magnetic action component is arranged on the outer side cylinder wall of the second magnetic component mounting seat; the retarding rotor 3 is arranged in the inner cavity of the traction sheave 2 through a central shaft 6 connected with the equipment support, so that the second magnetic action part corresponds to the first magnetic action part; in a specific embodiment, the first magnetically acting part is a metal conductor and the second magnetically acting part is a permanent magnet 8; in another specific embodiment, the first magnetically acting part is a permanent magnet 8, and the second magnetically acting part is a metal conductor;
the rotor clamping device 4 is arranged on the equipment support 1, and the rotor clamping device 4 and the chuck 34 act to brake the slow speed rotor 3 when the rotating speed of the traction sheave 2 exceeds a set threshold value. The set threshold is preferably set to be smaller than the contracting brake triggering speed of the traction sheave.
The utility model discloses elevator traction equipment is applied to an elevator system, a safer elevator system is formed, the elevator system comprises an elevator car and traction equipment arranged on a building body, and a mooring rope is connected with the elevator car and a traction wheel 2 of the traction equipment; the traction equipment is the elevator traction equipment provided with the permanent magnet eddy current retarder of the embodiment. Because the utility model discloses elevator traction equipment's use, when elevator car takes place the stall and falls, slows down traction wheel and elevator car before traction wheel band-type brake, has avoided because the braking action that exists when directly adopting the traction wheel to fall the braking is violent, damages passenger in the car easily and causes the problem of passenger psychology panic. Meanwhile, the elevator falling event caused by the fault of the brake system of the traction wheel can be avoided, and double-layer protection is provided for the safe operation of the elevator car.
In a further preferred embodiment, a leveling bracket is provided on the elevator car, which has both an extended and a retracted position. The elevator system can enable personnel in the car to escape automatically when the elevator accident occurs and the traction wheel is braked, and when the elevator breaks down and passengers are trapped, the passengers can operate the emergency rescue wrench in the car, and after pulling down the wrench, the elevator traction equipment is forced to work (the rotor clamping device 4 and the chuck 34 act to brake the retarding rotor 3), and meanwhile, the leveling support on the car is unfolded; then the tractor internal contracting brake and the rope clamping device are opened under the driving of an emergency power supply, and at the moment, the elevator can run to the position close to the leveling layer by means of gravity and is combined with the leveling support elevator car to level the layer; after the lift car is leveled, the contracting brake and the rope clamp work in a power-off mode, so that the lift car is locked at the leveling position, and the landing door is opened to allow passengers to get rid of the elevator by themselves.
In a preferred embodiment of the elevator traction apparatus, as shown in fig. 6 and 7, the second magnetic member mount includes an outer cylinder 31, a coupling ring 32 and an inner cylinder 33, the coupling ring 32 is disposed between the outer cylinder 31 and the inner cylinder 33, and the permanent magnets 8 are mounted on an outer wall of the outer cylinder 31 at intervals. Correspondingly, the first magnetically acting component is a metal conductor. The advantage of this kind of configuration form is, the metal conductor produces a large amount of heat because of induction current and the thermal effect of resistance in braking process, leads out to the outside of equipment through the first magnetic part mount pad that the heat conductivity is better, preferably sets up the radiating fin that is used for passive heat dissipation at the outer wall of first magnetic part mount pad. In a preferred embodiment, the metal conductor is preferably designed as a metal can 5 structure, such as a copper metal can, an aluminum metal can. In another embodiment of the elevator traction apparatus, the second magnetically acting part is a metal conductor which is mounted on the outer wall of the outer cylinder 31, and correspondingly the first magnetically acting part is the permanent magnet 8. The slow rotor is provided with a fan which rotates synchronously with the slow rotor and is used for actively radiating heat of the metal conductor, and the radiating performance of the slow rotor is better. As shown in fig. 7, the bearing 7 is provided between the inner tube 33 and the central shaft 6, and the arrangement of the bearing can reduce the resistance of the retarder rotor in a non-braking state, thereby saving the energy consumption of the system.
Referring to fig. 3 and 8, the rotor locking device 4 of the first embodiment includes a pawl mounting seat 41, a pawl, a roller 44 and an elastic component 45, the pawl mounting seat 41 is fixed on the equipment support 1, the pawl is hinged on the pawl mounting seat 41, one end of the pawl is provided with a locking notch 46, and the other end is provided with the roller 44; the elastic member 45 presses the roller 44 against the outer edge of the cam 23 of the traction sheave 2; the detent recesses 46 correspond to the projections 35 of the chuck 34. The pawl comprises a clamping part 42 and a roller mounting part 43, and the pawl is of an L-shaped structure; the elastic member 45 is a spring, one end of the spring is connected to the positioning portion 42, the other end of the spring is connected to the device holder 1, and the spring pulls the positioning portion 42 to make the roller 44 of the roller mounting portion 43 closely contact with the outer edge of the cam 23.
When the traction sheave rotates at normal speed, the spring pulls the clamping part to enable the roller of the roller mounting part to be tightly attached to the outer edge of the cam. At the moment, the clamping gap of the pawl clamping part and the bulge part of the chuck are mutually independent and do not interfere with each other, and the retarding rotor is driven by the traction sheave to rotate freely. When the rotating speed of the traction wheel exceeds a set threshold (the set threshold is preferably set to be smaller than the contracting brake threshold of the traction wheel), the rotating speed of the cam is increased, the centrifugal force received by the pawl is increased, at the moment, the clamping gap of the clamping part of the pawl is clamped with the bulge part of the chuck, the rotation of the retarding rotor is stopped, and the traction wheel is gradually decelerated under the magnetic braking action between the retarding rotor and the traction wheel.
In a further preferred embodiment, a spring force adjustment device is included, which is connected between the spring and the device holder 1. For example, the elasticity adjusting device comprises a nut, a screw and an adapter part, wherein the nut is connected with one end of the spring, the screw is inserted into the mounting hole of the adapter part, and the size of the penetrating part of the screw is larger than that of the mounting hole, so that the screw is prevented from falling off; the switching portion is connected with the equipment support. The extension degree of the spring can be adjusted by rotating the screw rod, so that the triggering speed of the rotor clamping device can be adjusted, and the triggering speed is higher as the elastic force of the spring is larger.
Referring to fig. 3 and 8, the rotor locking device 4 of the second embodiment includes a pawl mounting seat 41, a pawl, a roller 44 and an elastic component 45, the pawl mounting seat 41 is fixed on the equipment support 1, the pawl is hinged on the pawl mounting seat 41, one end of the pawl is provided with a locking notch 46, and the other end is provided with the roller 44; the elastic member 45 presses the roller 44 against the outer edge of the cam 23 of the traction sheave 2; the detent recesses 46 correspond to the projections 35 of the chuck 34. The pawl comprises a clamping part 42 and a roller mounting part 43, and the pawl is of an L-shaped structure; the elastic component 45 is a spring, one end of the spring is connected with the roller mounting part 43, the other end of the spring is connected with the equipment support 1, and the spring pushes the roller mounting part 43 to enable the roller 44 to be tightly attached to the outer edge of the cam 23. When the traction sheave rotates at normal speed, the spring pushes the clamping part to enable the roller of the roller mounting part to be tightly attached to the outer edge of the cam, and other effects and functions are similar to those of the previous embodiment. In a further preferred embodiment, a spring force adjustment device is included, which is connected between the spring and the device holder 1. For example, the elasticity adjusting device comprises a nut, a screw and a switching part, wherein the nut is connected with one end of the spring, the nut and the cylindrical spring are coaxially arranged, one end of the screw is provided with a thread structure, and the other end of the screw is unthreaded; one end of the screw without a thread structure is inserted into the mounting hole of the adapter part and can freely rotate in the adapter part; the switching portion is connected with the equipment support. The compression degree of the spring can be adjusted by rotating the screw rod, so that the triggering speed of the rotor clamping device can be adjusted, and the larger the elastic force of the spring is, the faster the triggering speed is.
The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.
Claims (10)
1. The utility model provides a set up elevator traction equipment of permanent magnetism vortex retarder, its characterized in that includes: a device support (1); the traction sheave (2), a first magnetic action component, a retarding rotor (3), a second magnetic action component and a rotor clamping device (4); the traction sheave (2) comprises a traction sheave base body (21), a first magnetic part mounting seat (22) of a cylindrical structure and a cam (23), and the magnetic part mounting seat is connected between the traction sheave base body (21) and the cam (23); the traction sheave (2) is arranged on the equipment support (1); the first magnetic action component is arranged on the inner wall of the first magnetic component mounting seat (22); the retarding rotor (3) comprises a second magnetic part mounting seat and a chuck (34), and the chuck (34) is arranged on one side of the second magnetic part mounting seat; the second magnetic action component is arranged on the outer side cylinder wall of the second magnetic component mounting seat; the retarding rotor (3) is arranged in the inner cavity of the traction sheave (2) through a central shaft (6) to enable the second magnetic action component to correspond to the first magnetic action component; the first magnetic action part is a metal conductor, and the second magnetic action part is a permanent magnet (8); or the first magnetic action part is a permanent magnet (8), and the second magnetic action part is a metal conductor; the rotor clamping device (4) is installed on the equipment support (1), and the rotor clamping device (4) and the chuck (34) act to brake the retarding rotor (3) when the rotating speed of the traction sheave (2) exceeds a set threshold value.
2. The elevator traction apparatus provided with the permanent magnet eddy current retarder according to claim 1, wherein the second magnetic member mount comprises an outer cylinder (31), a connection ring (32), and an inner cylinder (33), the connection ring (32) is disposed between the outer cylinder (31) and the inner cylinder (33), and the permanent magnets (8) are installed on an outer wall of the outer cylinder (31) at intervals.
3. The elevator traction apparatus provided with a permanent magnet eddy current retarder according to claim 2, characterized in that a bearing (7) is provided between the inner cylinder (33) and the center shaft (6).
4. The elevator traction equipment provided with the permanent magnet eddy current retarding device according to claim 1, wherein the rotor clamping device (4) comprises a pawl mounting seat (41), a pawl, a roller (44) and an elastic component (45), the pawl mounting seat (41) is fixed on the equipment support (1), the pawl is hinged on the pawl mounting seat (41), one end of the pawl is provided with a clamping notch (46), and the other end of the pawl is provided with the roller (44); the elastic component (45) enables the roller (44) to press the outer edge of the cam (23) of the traction sheave (2); the detent recesses (46) of the detent correspond to the projections (35) of the chuck (34).
5. The elevator traction equipment provided with the permanent magnet eddy current retarder according to claim 4, wherein the pawl comprises a clamping part (42) and a roller mounting part (43), and the pawl is of an L-shaped structure; the elastic component (45) is a spring, one end of the spring is connected with the clamping part (42), the other end of the spring is connected with the equipment support (1), and the spring pulls the clamping part (42) to enable the roller (44) of the roller mounting part (43) to be tightly attached to the outer edge of the cam (23).
6. The elevator traction equipment provided with the permanent magnet eddy current retarding device according to claim 5, further comprising an elasticity adjusting device connected between the spring and the equipment support (1).
7. The elevator traction equipment provided with the permanent magnet eddy current retarder according to claim 4, wherein the pawl comprises a clamping part (42) and a roller mounting part (43), and the pawl is of an L-shaped structure; the elastic component (45) is a spring, one end of the spring is connected with the roller mounting part (43) and the other end of the spring is connected with the equipment support (1), and the spring pushes the roller mounting part (43) to enable the roller (44) to be tightly attached to the outer edge of the cam (23).
8. The elevator traction equipment provided with the permanent magnet eddy current retarder according to claim 7, further comprising an elasticity adjusting device connected between the spring and the equipment support (1).
9. An elevator system, which comprises an elevator car and a hoisting device arranged in a building, a rope connecting the elevator car and a traction sheave (2) of the hoisting device; the traction equipment is characterized in that the traction equipment is the elevator traction equipment provided with the permanent magnet eddy current retarder according to any one of claims 1 to 8.
10. The elevator system of claim 9, wherein a leveling bracket is disposed on the elevator car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020747215.0U CN212687276U (en) | 2020-05-09 | 2020-05-09 | Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020747215.0U CN212687276U (en) | 2020-05-09 | 2020-05-09 | Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system |
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| CN212687276U true CN212687276U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020747215.0U Active CN212687276U (en) | 2020-05-09 | 2020-05-09 | Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system |
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| CN (1) | CN212687276U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717828A (en) * | 2020-05-09 | 2020-09-29 | 迈格钠磁动力股份有限公司 | Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system |
-
2020
- 2020-05-09 CN CN202020747215.0U patent/CN212687276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717828A (en) * | 2020-05-09 | 2020-09-29 | 迈格钠磁动力股份有限公司 | Elevator traction equipment provided with permanent magnet eddy current retarding device and elevator system |
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