CN104370192A - Dual-braking transmission mechanism of construction hoist - Google Patents
Dual-braking transmission mechanism of construction hoist Download PDFInfo
- Publication number
- CN104370192A CN104370192A CN201410556099.3A CN201410556099A CN104370192A CN 104370192 A CN104370192 A CN 104370192A CN 201410556099 A CN201410556099 A CN 201410556099A CN 104370192 A CN104370192 A CN 104370192A
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- Prior art keywords
- brake
- motor
- transmission mechanism
- coupler
- building hoist
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Classifications
-
- 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
- B66B11/043—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation
- B66B11/0461—Driving gear ; Details thereof, e.g. seals actuated by rotating motor; Details, e.g. ventilation with rack and pinion gear
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a dual-braking transmission mechanism of a construction hoist. The dual-braking transmission mechanism comprises a motor and a reducer, the motor is connected with the reducer, the two sides of the motor and the reducer are each provided with a DC electromagnetic brake which is mounted on a drive mounting plate with one or more sets of dual-braking power units as core parts, the drive mounting plate is provided with a safety protection and back gears and is mounted on a drive frame, side guiding wheels are mounted on the drive frame which is connected with connecting rods, the two ends of each connecting rod are provided with dual-guiding-wheel components, and each set of guiding wheels are matched with a main chord member of a hoist standard knot in matched mode and can roll on the main chord member in a guiding mode; a gear on an output shaft of the reducer is meshed with a rack on the standard knot, and the motor is electrically controlled to rotate forwards and reversely to achieve ascending and descending of the transmission mechanism. The dual-braking transmission mechanism is safe, reliable, stable and comfortable in operation, braking faults can be detected, and the transmission mechanism can be online in an electronic control mode to prevent the faults from being expanded or worsened; the transmission mechanism is wide in application range and especially suitable for the occasions with high safety risks.
Description
Technical field
The present invention relates to a kind of transmission mechanism of building hoist, particularly relate to the novel transmission mechanism of a kind of building hoist and material elevator.
Background technology
Current transmission mechanism of building hoist generally adopts single brake power unit mode.This single brake power unit mode structurally fairly simple convenience, but there is many drawbacks:
1, safe reliability is poor.Single brake power unit only has one group of magnet stopper, and when drg breaks down, whole power unit just cannot normally work, and whole power unit is driven by transmission device, and transmission device cannot be worked.
2, running comfort is poor.Operationally because the existence of starting loop and stopping deceleration/decel, with the running velocity of transmission device and the difference of live load, the impact of start-stop frequently occurs in various degree.The start/stop impact of building hoist is the wear-out failure of building hoist transmission device, aggravation failure the most direct reason frequently, larger on the traveling comfort impact of occupant.Transmission mechanism of building hoist is made to there is the deficiency of safety performance and the defect of trouble free protection and control.
Therefore, need to provide a kind of new technical scheme to solve the problems referred to above.
Summary of the invention
For solving the problem, the two brake transmission mechanism of building hoist that the invention provides a kind of safe, reliable, comfortable, smooth running and can detect, control.
The technical solution used in the present invention is:
The two brake transmission mechanism of building hoist, comprise motor and retarder, described motor and retarder connect, a DC electromagnetic brake is respectively equipped with in described motor and retarder both sides, with the two brake power unit of a group or some groups for core component is arranged on drive installation plate, described drive installation plate is provided with safety guard and backgear, described drive installation plate is arranged on and drives on frame, described driving frame is equipped with side guide wheel, described driving frame connects extension bar, two guide wheel assembly is installed at described extension bar two ends, the main chord of each group of guide wheel and elevator standard knot joins that being incorporated in, main chord leads rolls, gear on described reducer output shaft engages with the tooth bar on standard knot, by electrical control by motor just, reversion, realize the rising of transmission device, decline.
Described pair of brake power unit comprises building hoist motor special and drives various forms of retarder; tie-plate is provided with between described motor and retarder; the spring pressurization magnet stopper that one group has safety protection function is set up in the coupler side of installing in described tie-plate; the outputting power of described motor is delivered to retarder through coupler, the spring pressurization magnet stopper with safety protection function, thus defines one and to drive and drg that two separate and a speed reduction gearing merge the power unit formed.
When building hoist motor special driven gear retarder, gear reducer is spiral bevel gear reducer or helical gear reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet, magnet coil, armature, fixing brake disc, brake strip, special half a coupler and retarding spring, described worm reducer input shaft is connected with motor output shaft by coupler, described worm reducer input shaft is connected with motor output shaft by coupler, described gear reducer output shaft is equipped with output gear, described fixing brake disc is fixed on terminal pad, described brake strip engages with the invoice serration of special half a coupler, described armature and electromagnet set up a suitable gap by retarding spring, described magnet coil waters and is filled in electromagnet, described brake strip is between armature and fixing brake disc, described manual releasing handle is arranged on electromagnet back, elastic body is embedded between described special half a coupler and motor side half a coupler.
When building hoist motor special drives worm reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet, magnet coil, armature, fixing brake disc, brake disc and retarding spring, described worm reducer input shaft is connected with motor output shaft by coupler, described fixing brake disc is fixed on terminal pad, described brake disc is between armature and fixing brake disc, the hexagonal that described brake disc overlaps with hexagonal engages, described armature and electromagnet pass through backstopping device, bonnet, a suitable gap set up by adjusting sleeve and retarding spring, described magnet coil waters and is filled in electromagnet, described manual releasing handle is arranged on bonnet back and is fixed on electromagnet through bonnet.
Two separate drgs and dual brake, described dual brake comprises spring pressurization magnet stopper that one group of motor carries and adds one group and has the spring pressurization magnet stopper of safety protection function or common spring pressurization magnet stopper.
The spring pressurization magnet stopper that described motor carries is traditional band gap automatic tracking and compensating spring pressurization magnet stopper or the spring pressurization magnet stopper with safety protection function.
Described safety guard comprises anti-falling safety device, travel switch, limit switch and hook with safety tong.
Beneficial effect of the present invention: compared with traditional building hoist or material elevator transmission device: the mechanism of the application is safe and reliable to operation, steadily, comfortable, brake fault can detect and with automatically controlled online, avoid failure propagation or deterioration; Applied widely, be specially adapted to the occasion of high security risk, the list as material elevator drives the Dual Drive occasion of occasion and efficient energy-saving building hoist.
Accompanying drawing explanation
Fig. 1 is the structural representation of building hoist of the present invention.
Fig. 2 is M-M direction view in Fig. 1.
Fig. 3 is N-N direction view in Fig. 1.
Fig. 4 is two brake transmission mechanism schematic diagram in Fig. 1.
Fig. 5 is that the embodiment of the present invention 1 pair of spragging gear slows down two transmission devices.
Fig. 6 is the embodiment of the present invention 2 pairs braking worm gear reducer two transmission device.
Fig. 7 is the embodiment of the present invention 3 pairs of spragging gear deceleration single-drive mechanisms.
Fig. 8 is the embodiment of the present invention 4 pairs braking worm gear reducer single-drive mechanism.
Fig. 9 a is the structural representation of two spragging gear retarding power unit in embodiment 1,3.
Fig. 9 b is A internally cutaway view in Fig. 9 a.
Figure 10 a is two braking worm gear reducer power unit structure schematic diagram in embodiment 2,4.
Figure 10 b is A internally cutaway view in Figure 10 a.
Wherein, in Fig. 1-8, the label of each parts is as follows: 1. pair guide wheel assembly, 2. extension bar, 3. skew web plate, 4. side guide wheel, track adjusting wheel on the upside of in the of 41., track adjusting wheel on the downside of in the of 42., 5. drives frame, 6. retarder, 61, gear reducer, 62, worm reducer, 7. braking motor, 8. drive installation plate, 9. anti-falling safety device, 10. tooth bar, 11. limit switches, 12. hook with safety tongs, 13. travel switches, 14. gears, 15. DC electromagnetic brakes, 16. DC electromagnetic brakes, 17, backgear, 18, coupler, 19, tie-plate.
Wherein, in Fig. 9 a, 9b, 10a, 10b, the label of each parts is as follows: 1 '. gear reducer, 2 '. and output gear, 3 '. terminal pad, 4 '. fixing brake disc, 5 '. brake strip, 6 '. armature, 7 '. retarding spring, 8 '. magnet coil, 9 '. manual releasing handle, 10 '. electromagnet, 11 '. special half a coupler, 12 '. elastic body, 13 '. motor side half a coupler, 14 '. motor, 15 '. primary auxiliary brake;
1. adjusting sleeve, 2. retarding spring, 3. manual releasing handle, 4. bonnet, 5. electromagnet, 6. backstopping device, 7. armature, 8. magnet coil, 9. terminal pad, 10. brake disc, 11. fixing brake discs, 12. hexagonal covers, 13. worm reducers, 14. coupler, 15. motors, 16. primary auxiliary brake.
In order to deepen the understanding of the present invention, below in conjunction with embodiment and accompanying drawing, the invention will be further described, and this embodiment, only for explaining the present invention, does not form the restriction to protection scope of the present invention.
As Figure 1-4, the two brake transmission mechanism of building hoist of the present invention, comprise motor 7 and retarder 6, motor 7 and retarder 6 connect, a DC electromagnetic brake 15 is respectively equipped with in motor 7 and retarder 6 both sides, 16, with the two brake power unit of a group or some groups for core component is arranged on drive installation plate 8, drive installation plate 8 is provided with safety guard and backgear 17, drive installation plate 8 is arranged on and drives on frame 5, drive on frame 5 and side guide wheel 4 is housed, frame 5 is driven to connect extension bar 2, extension bar 2 outer end is fixed on by diagonal web member 3 and is driven on frame 5, two guide wheel assembly 1 is installed at extension bar 2 two ends, the main chord of each group of guide wheel and elevator standard knot joins that being incorporated in, main chord leads rolls, gear 14 on retarder 6 output shaft engages with the tooth bar 10 on standard knot, by electrical control by motor just, reversion, realize the rising of transmission device, decline.And can not glide when guaranteeing that building hoist or material elevator rest in a certain height.
Above-mentioned pair of brake power unit comprises building hoist motor special and drives various forms of retarder 6, tie-plate 19 is provided with between motor 7 and retarder 6, coupler 18 side of installing in tie-plate 19 is set up one group of spring pressurization magnet stopper with safety protection function and (is referred to 15 here, 16 these two drgs), the outputting power of motor 7 is through coupler 18, the spring pressurization magnet stopper with safety protection function is delivered to retarder 6, thus define one and to drive and two separate drgs and a speed reduction gearing merge the power unit formed.
Above-mentioned safety guard comprises anti-falling safety device 9, travel switch 13, limit switch 11 and hook with safety tong 12.
Travel switch 13: when transmission device (operation platform) runs to spacing desired location, the limit switch 11 on transmission device touches to be contained in and standard knot touches iron, thus cutting-off controlling loop; Limit switch 11: when limit switch 11 fails to prevent the operation of transmission device because of fault, this limit switch 11 touches to be contained in and standard knot touches iron, cuts off power circuit, forces transmission device out of service.The setting of travel switch 13 and limit switch 11, guarantees to run in a certain stroke section, prevents from construction elevator cage or construction lifting platform being altered and directly impacting ground;
On the drive installation plate that anti-falling safety device 9 is arranged on transmission device or be independently arranged on separately on safety anti-falling device plate, braking building hoist or material elevator cage or construction lifting platform when abnormal falling.
Come below specifically to set forth:
Motor 7, retarder 6 both sides are respectively equipped with a DC electromagnetic brake 15,16, and brake friction pair has from motion tracking, compensation adjustment, and braking is steadily reliable.Motor 7 energising is opened, and power-off brake, guarantees that construction elevator cage or construction lifting platform can rest on the position of a certain needs.
Anti-falling safety device 9 rotates with operating on tooth bar of transmission device with tooth bar 10 gears in mesh 14 on standard knot.When the running velocity (during decline) of transmission device (construction lifting platform) to reach 1.5 times of command speed because of fault, anti-falling safety device 9 works, make to be installed on micro-switch action shell is connected in control loop, cutting-off controlling loop, makes motor power-off brake.
Each group of guide wheel adopts the centering type with axial offset stroke, and (E-E) can automatic axial adjustment according to the shape tolerance of main chord and mutual alignment tolerance.Adopt the tolerance clearance of centering type adjustable and main chord, reach operate steadily, reliably, backgear adopts centering type, (D-D) adjustment and the tolerance clearance of tooth bar, reach guiding reliably.
Embodiment 1
Figure 5 shows that two spragging gear slows down two transmission devices, with two groups of two brake power unit for core component is arranged on drive installation plate, situation when building hoist motor special driven gear retarder 61, gear reducer 61 is spiral bevel gear reducer or helical gear reducer, and the side guide wheel in Fig. 1 refers to upside track adjusting wheel 41 in Fig. 5 and downside track adjusting wheel 42.
Embodiment 2
Figure 6 shows that two braking worm gear reducer two transmission device.With two groups of two brake power unit for core component is arranged on drive installation plate, the situation when building hoist motor special drives worm reducer 62.
Figure 7 shows that two spragging gear deceleration single-drive mechanism.With one group of two brake power unit for core component is arranged on drive installation plate, all the other structures to be slowed down two transmission devices with two spragging gear.
Figure 8 shows that two braking worm gear reducer single-drive mechanism.With one group of two brake power unit for core component is arranged on drive installation plate, all the other structures are with two braking worm gear reducer two transmission device.
Two spragging gear retarding power unit as illustrated in figures 9 a and 9b, comprises motor, gear reducer, primary auxiliary brake, special half a coupler and two stage braking device five part composition.Two stage braking device is the spring pressurization magnet stopper of band safety guard-safeguard.
Spring pressurization electromagnetism (secondary) drg of a cuff safety guard-safeguard is provided with, by part 3 '-11 between the motor 14 ' of primary auxiliary brake 15 ' and gear reducer 1 ' ' form.
When building hoist motor special driven gear retarder, gear reducer is spiral bevel gear reducer or helical gear reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet 10 ', magnet coil 8 ', armature 6 ', fixing brake disc 4 ', brake strip 5 ', special half a coupler 11 ' and retarding spring 7 ', special half a coupler 11 ' one end connects motor 14 ' output shaft, special half a coupler 11 ' other end attachment tooth wheel decelerator 1 ' input shaft, gear reducer 1 ' output shaft is equipped with output gear 2 ', fixing brake disc 4 ' is fixed on terminal pad 3 ', brake strip 5 ' engages with the invoice serration of special half a coupler 11 ', armature 6 ' and electromagnet 10 ' set up a suitable gap by retarding spring 7 ', magnet coil 8 ' waters and is filled in electromagnet 10 ', brake strip 5 ' is between armature 6 ' and fixing brake disc 4 ', manual releasing handle 9 ' is arranged on electromagnet 10 ' back, elastic body 12 ' is embedded between special half a coupler 11 ' and motor side half a coupler 14 '.
Two braking worm gear reducer power unit as shown in figures 10 a and 10b, comprises motor, worm reducer, coupler, primary auxiliary brake and two stage braking device five part composition.One-level or two stage braking device can be common spring pressurization magnet stoppers, also can be the spring pressurization magnet stoppers of band safety guard-safeguard.
On the basis of motor side primary auxiliary brake 16, be provided with spring pressurization electromagnetism (secondary) drg of a cuff safety guard-safeguard at the afterbody of worm reducer speed end, be made up of part 1-12.
When building hoist motor special drives worm reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet 5, magnet coil 8, armature 7, fixing brake disc 11, brake disc 10 and retarding spring 2, worm reducer 13 input shaft is connected with motor 15 output shaft by coupler 14, fixing brake disc 11 is fixed on terminal pad 9, brake disc 10 is between armature 7 and fixing brake disc 11, the hexagonal that brake disc 10 overlaps 12 with hexagonal engages, armature 7 and electromagnet 5 are by backstopping device 6, bonnet 4, a suitable gap set up by adjusting sleeve 1 and retarding spring 2, magnet coil 8 waters and is filled in electromagnet 5, manual releasing handle 3 is arranged on bonnet 4 back and is fixed on electromagnet 5 through bonnet 4.
The spring pressurization magnet stopper of two stage braking device in this way with safety guard-safeguard, its version is with Figure 10 b.Common spring pressurization magnet stopper in this way, its version is shown in Figure 10 b.
In above-described embodiment; two separate drgs and dual brake, dual brake comprises spring pressurization magnet stopper that one group of motor carries and adds one group and has the spring pressurization magnet stopper of safety protection function or common spring pressurization magnet stopper.Wherein, the spring pressurization magnet stopper that motor carries is traditional band gap automatic tracking and compensating spring pressurization magnet stopper or the spring pressurization magnet stopper with safety protection function.
The above-mentioned said spring pressurization electromagnetism magnet stopper with safety protection function is by the magnet stopper of DC power supply; Above-mentioned electromagnet is the interior special soft-magnetic material framing member having one group of magnet coil; Above-mentioned said magnet coil is poured with insulating frame the one group of enamel wire be fixed in electromagnet inner annular circular groove by insulated paint; Above-mentioned said brake strip, by corrosion-resistant steel or aluminum alloy body and special friction material bond form there is the peculiar part that great friction coefficient and low specific wearability can transmit design torque.
Above-mentioned fixing brake disc is fixed on brake strip side, actionless friction pair part, armature is the friction pair part be arranged between electromagnet and brake strip that floats, and electromagnet is provided with one group or two groups of micro-switch mechano-electronic signal conversion element (micro-switch) of setting up with armature and contacting distance.
The two brake power unit of transmission device of the present invention; comprise building hoist band electromagnetic braking motor, the retarder of various ways and the spring pressurization magnet stopper with safety protection function to combine through certain connection, wherein spring pressurization magnet stopper has and is different from the unexistent performance of conventional belt gap automatic tracking and compensating (common) magnet stopper.Its principle is: spring pressurization magnet stopper has two friction surfaces, when magnet coil power-off, the masterpiece that spring produces is used on armature, is tightly clipped between armature and fixing brake disc by the friction brake disk of special half a coupler driven rotary, thus produces lock torque.Now, a gap can be produced between armature and electromagnet, when needs loosen the brake, magnet coil connects direct current (DC), and the magnetic field suction armature produced moves to electromagnet, and drives micro-switch striker corresponding actions, send automatically controlled signal, Compress Spring when armature moves, now friction brake disk is released, brake release.
As motor electromagnetic brake malfunctions, the spring pressurization magnet stopper of band safety protection function still effectively can take on braking role, avoids gliding, falling and safety misadventure.
When magnet coil occur connect fault, armature fails to move to electromagnet, and the striker of micro-switch is not operating, does not send automatically controlled signal, and motor can not be activated, and automatically controlled light or (with) buzzer phone response under, send failure message.By the embodiment of this function, solve the hidden danger of building hoist brake fault well, reduce transmission device wear-out failure, aggravation failure is frequent.
By automatically controlled setting, certain delays time to control is carried out to the action of primary auxiliary brake (magnet stopper of motor self) and two stage braking device (the spring pressurization magnet stopper namely with safety protection function or common spring pressurization magnet stopper), what transmission device obtained that control system sends start or stop specify instantaneous, overcome system inertia and braking force accelerates to design speed from zero-speed is instantaneous or reduces to the process of zero-speed from design speed is instantaneous, adding shock damping action thus making to add (subtracting) speed controls at reasonable interval, effectively eliminate the brute force attack opening braking, by the embodiment of this function, efficiently solve building hoist and open braking stationarity, affect the problems that occupant is comfortable.
Claims (7)
1. the two brake transmission mechanism of building hoist, comprise motor and retarder, described motor and retarder connect, it is characterized in that: a DC electromagnetic brake is respectively equipped with in described motor and retarder both sides, with the two brake power unit of a group or some groups for core component is arranged on drive installation plate, described drive installation plate is provided with safety guard and backgear, described drive installation plate is arranged on and drives on frame, described driving frame is equipped with side guide wheel, described driving frame connects extension bar, two guide wheel assembly is installed at described extension bar two ends, the main chord of each group of guide wheel and elevator standard knot joins that being incorporated in, main chord leads rolls, gear on described reducer output shaft engages with the tooth bar on standard knot, by electrical control by motor just, reversion, realize the rising of transmission device, decline.
2. the two brake transmission mechanism of building hoist according to claim 1, it is characterized in that: described pair of brake power unit comprises building hoist motor special and drive various forms of retarder, tie-plate is provided with between described motor and retarder, the spring pressurization magnet stopper that one group has safety protection function is set up in the coupler side of installing in described tie-plate, the outputting power of described motor is through coupler, the spring pressurization magnet stopper with safety protection function is delivered to retarder, thus define one and to drive and two separate drgs and a speed reduction gearing merge the power unit formed.
3. the two brake transmission mechanism of building hoist according to claim 2, it is characterized in that: when building hoist motor special driven gear retarder, gear reducer is spiral bevel gear reducer or helical gear reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet, magnet coil, armature, fixing brake disc, brake strip, special half a coupler and retarding spring, described special half a coupler one end connects motor output shaft, described special half a coupler other end attachment tooth wheel decelerator input shaft, described gear reducer output shaft is equipped with output gear, described fixing brake disc is fixed on terminal pad, described brake strip engages with the invoice serration of special half a coupler, described armature and electromagnet set up a suitable gap by retarding spring, described magnet coil waters and is filled in electromagnet, described brake strip is between armature and fixing brake disc, described manual releasing handle is arranged on electromagnet back, elastic body is embedded between described special half a coupler and motor side half a coupler.
4. the two brake power unit of transmission mechanism of building hoist according to claim 2, it is characterized in that: when building hoist motor special drives worm reducer, the spring pressurization magnet stopper with safety protection function comprises electromagnet, magnet coil, armature, fixing brake disc, brake disc and retarding spring, described worm reducer input shaft is connected with motor output shaft by coupler, described fixing brake disc is fixed on terminal pad, described brake disc is between armature and fixing brake disc, the hexagonal that described brake disc overlaps with hexagonal engages, described armature and electromagnet pass through backstopping device, bonnet, a suitable gap set up by adjusting sleeve and retarding spring, described magnet coil waters and is filled in electromagnet, described manual releasing handle is arranged on bonnet back and is fixed on electromagnet through bonnet.
5. the two brake power unit of the transmission mechanism of building hoist according to claim 3 or 4; it is characterized in that: two separate drgs and dual brake, described dual brake comprises spring pressurization magnet stopper that one group of motor carries and adds one group and has the spring pressurization magnet stopper of safety protection function or common spring pressurization magnet stopper.
6. the two brake power unit of the transmission mechanism of building hoist according to claim 3 or 4, is characterized in that: the spring pressurization magnet stopper that described motor carries is traditional band gap automatic tracking and compensating spring pressurization magnet stopper or the spring pressurization magnet stopper with safety protection function.
7. the two brake transmission mechanism of building hoist according to claim 1 and 2, is characterized in that: described safety guard comprises anti-falling safety device, travel switch, limit switch and hook with safety tong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556099.3A CN104370192A (en) | 2014-10-20 | 2014-10-20 | Dual-braking transmission mechanism of construction hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410556099.3A CN104370192A (en) | 2014-10-20 | 2014-10-20 | Dual-braking transmission mechanism of construction hoist |
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| CN104370192A true CN104370192A (en) | 2015-02-25 |
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|---|---|---|---|
| CN201410556099.3A Pending CN104370192A (en) | 2014-10-20 | 2014-10-20 | Dual-braking transmission mechanism of construction hoist |
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| CN (1) | CN104370192A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109678034A (en) * | 2019-02-20 | 2019-04-26 | 康力电梯股份有限公司 | A kind of anti-step-out device of permanent-magnet synchronous door machine |
| CN111824908A (en) * | 2020-07-10 | 2020-10-27 | 亚泰重工股份有限公司 | Double-row driving gear type driving mechanism of elevator |
| CN114576293A (en) * | 2022-03-17 | 2022-06-03 | 西北工业大学宁波研究院 | Electromagnetic mechanical brake, method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109678034B (en) * | 2019-02-20 | 2023-12-22 | 康力电梯股份有限公司 | Anti-step-out device of permanent magnet synchronous door machine |
| CN111824908A (en) * | 2020-07-10 | 2020-10-27 | 亚泰重工股份有限公司 | Double-row driving gear type driving mechanism of elevator |
| CN114576293A (en) * | 2022-03-17 | 2022-06-03 | 西北工业大学宁波研究院 | Electromagnetic mechanical brake, method and application |
| CN114576293B (en) * | 2022-03-17 | 2023-06-30 | 西北工业大学宁波研究院 | Electromagnetic mechanical brake, method and application |
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Application publication date: 20150225 |
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