CN208008241U - Vertical traction machine and the lead-screw elevator for using the traction machine - Google Patents
Vertical traction machine and the lead-screw elevator for using the traction machine Download PDFInfo
- Publication number
- CN208008241U CN208008241U CN201820052435.4U CN201820052435U CN208008241U CN 208008241 U CN208008241 U CN 208008241U CN 201820052435 U CN201820052435 U CN 201820052435U CN 208008241 U CN208008241 U CN 208008241U
- Authority
- CN
- China
- Prior art keywords
- frictional disk
- armature
- shaft
- brake
- traction machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 230000007246 mechanism Effects 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
- Braking Arrangements (AREA)
Abstract
The utility model is related to the lead-screw elevators of vertical traction machine and the use traction machine.In vertical traction machine, the brake of shaft upper end includes the frictional disk that rotation stop is assemblied in shaft and the brake plate above frictional disk, the lower section of frictional disk is equipped with armature, shaft is equipped with the face-up positioning shaft shoulder of step, when electromagnetic coil powers off, armature pushes up frictional disk under the action of tripping spring and is pressed on brake plate, and there are gaps between armature and upper end cover upper surface；When the solenoid is activated, armature is moved down by electromagnetic force is close to upper end cover upper surface, while frictional disk moves down and by block under the effect of gravity above positioning shaft shoulder, and the both sides up and down of frictional disk have air gap with brake plate and armature respectively.The utility model realizes the limit operation of frictional disk, in the release conditions of brake, can ensure that the both sides up and down of frictional disk have air gap, solves the problems, such as that friction disc spins easy to produce noise with brake plate or armature friction.
Description
Technical field
The utility model is related to elevator technology fields, and in particular to a kind of vertical traction machine and the leading screw using the traction machine
Elevator.
Background technology
With the increasingly raising of the growing and people's living standard of construction industry, the technology of elevator is required also increasingly
It is high.To simplify structure, construction area is saved, lead-screw elevator is applied in some occasions, and lead-screw elevator includes vertical traction machine
With screw-nut mechanism, vertical traction machine drives leading screw rotation, screw to be fixedly connected with car.In lift car start-stop, silk
Thick stick elevator needs to be controlled using brake apparatus.Permanent magnetic synchronous traction machine is horizontal in common elevator, and traction sheave rotation is logical
Cross traction medium（Steel wire rope or steel band）Drive car to move up and down, the shaft type brake installed on traction machine include frictional disk and
Brake plate, rub disc spins when elevator is run, and is easy noise occur with brake plate friction.
Invention content
In order to overcome the deficiencies of existing technologies, the purpose of this utility model, which is to provide, a kind of can reduce the vertical of friction noise
Formula traction machine, the utility model additionally provide a kind of lead-screw elevator using the traction machine.
In order to achieve the goal above, the technical solution of the utility model vertical traction machine is：Vertical traction machine includes casing
The shaft vertically extended with the axis being fixed in casing, casing include upper end cover, and the upper end of shaft is from upper end cover
It is pierced by, the upper end of shaft is equipped with brake, and brake includes the frictional disk and be fixed on casing that rotation stop is assemblied in shaft
The lower section of brake plate above frictional disk, frictional disk is equipped with armature moving up and down, is equipped between armature and upper end cover
Tripping spring and electromagnetic coil, the shaft are equipped with the face-up positioning shaft shoulder of step, and frictional disk can be in shaft up and down
Mobile, when electromagnetic coil powers off, armature pushes up frictional disk under the action of tripping spring and compresses it on brake plate,
There are gaps, brake to be in on-position between armature and upper end cover upper surface；When the solenoid is activated, armature is by electricity
Magneticaction, which moves down, is close to upper end cover, while frictional disk rubs under the effect of gravity to moving down and by block above positioning shaft shoulder
There is air gap in the both sides up and down for wiping disk, brake is in release conditions with brake plate and armature respectively.
When brake is in release conditions, frictional disk is identical as the air gap of brake plate and armature, and braking is in for brake
When state between armature and upper end cover upper surface gap half.
Spline housing is fixed in shaft, spline housing is equipped with external splines, and frictional disk is equipped with internal spline, internal spline and external splines shape
At spline pair.
Frictional disk includes disk body and the frictional disk mounting cylinder that is protruded downward by disk body, and the internal spline is located at frictional disk installation
In cylinder, the armature is the disk-like structure with central through hole, and frictional disk mounting cylinder is passed down through the central through hole of armature；It is described
It is solid by the flat key being radially arranged and the clamp spring being axially arranged that supporting plate, spline housing and supporting plate are equipped between positioning shaft shoulder and frictional disk
It is scheduled in the positioning shaft shoulder of shaft, in the release conditions of brake, the lower end of frictional disk mounting cylinder is pressed on supporting plate.
There is upper end cover convex yoke seat, the electromagnetic coil and tripping spring to be mounted in yoke seat, yoke seat with
Shock-damping structure is equipped between armature, the brake plate is fixed on the upper surface of yoke seat.
The upper end of shaft is equipped with rotary encoder, and lower end is equipped with the shaft coupling for connecting leading screw, vertical traction machine
For permanent magnetic synchronous traction machine.
The technical solution of the utility model lead-screw elevator is：Lead-screw elevator include vertical traction machine and screw-nut mechanism and
Car, screw are fixedly connected with car, and vertical traction machine includes that casing and the axis being fixed in casing vertically extend
Shaft, casing includes upper end cover, bottom end cover and the casing ontology between upper and lower end cap, and it is fixed to be equipped in casing ontology
The upper and lower ends of son, shaft are pierced by from upper end cover and bottom end cover respectively, and rotor is fixed in shaft, and the lower end of shaft passes through connection
Axis device is connected with leading screw, and the upper end of shaft is equipped with brake, and brake includes the frictional disk and fixation that rotation stop is assemblied in shaft
The lower section of the brake plate being located above frictional disk on casing, frictional disk is equipped with armature moving up and down, armature and upper end
It is equipped with tripping spring and electromagnetic coil between lid, the shaft is equipped with the face-up positioning shaft shoulder of step, and frictional disk can be
It is moved up and down in shaft, when electromagnetic coil powers off, frictional disk is pressed on braking by armature upwards under the action of tripping spring
There are gaps, brake to be in on-position on plate, between armature and upper end cover upper end；When the solenoid is activated, armature by
It is displaced downwardly at upper end cover to electromagnetic force, frictional disk moves down and by block under the effect of gravity above positioning shaft shoulder, friction
There is air gap in the both sides up and down of disk, brake is in release conditions with brake plate and armature.
When brake is in release conditions, frictional disk is identical with the air gap of armature apart from brake plate, and system is in for brake
When dynamic state between armature and upper end cover gap half；Spline housing is fixed in shaft, spline housing has external splines, frictional disk
Equipped with internal spline, internal spline and external splines form spline pair；Frictional disk includes disk body and is pacified by the frictional disk that disk body protrudes downward
Fitted tube, the internal spline are located in frictional disk mounting cylinder, and the armature is the disk-like structure with central through hole, frictional disk installation
Cylinder is passed down through the central through hole of armature；Supporting plate is equipped between the positioning shaft shoulder and frictional disk, spline housing and supporting plate pass through diameter
It is fixed in the positioning shaft shoulder of shaft to the flat key of setting and the clamp spring that is axially arranged, in the release conditions of brake, frictional disk
The lower end of mounting cylinder is pressed on supporting plate.
There is upper end cover convex yoke seat, the electromagnetic coil and tripping spring to be mounted in yoke seat, yoke seat with
Adjustable shock-damping structure is equipped between armature, the brake plate is fixed on the upper surface of yoke seat.
Vertical traction machine is permanent magnetic synchronous traction machine, and the upper end of shaft is equipped with rotary encoder, passes through rotary encoder
Closed-loop control is carried out to elevator.
Due to the implementation of above technical scheme, the utility model has the following technical effect that compared with prior art：
When the solenoid is activated, armature no longer pushes up frictional disk upwards, and frictional disk moves down automatically under the effect of gravity, with turn
The positioning shaft shoulder top structure counter stopper of axis realizes the limit operation of frictional disk, in the release conditions of brake, Neng Goubao
There is air gap in the both sides up and down of card frictional disk, eliminate the common fault of shaft type brake -- friction disc spins and brake plate or armature
Friction generates noise.
Further, spline housing is installed in the sleeve of frictional disk, ensures that spline pair has certain cooperation to grow in the axial direction
Degree, to meet the needs of driving torque, frictional disk mounting cylinder passes through armature, saves axial occupied space, and supporting plate and frictional disk are total
With being assemblied on axis and can move axially using external splines rotation stop, frictional disk and armature and brake plate can be adjusted by supporting plate
Between air gap.
Further, simultaneously also as the yoke seat of brake, brake is directly integrated design and exists the upper end cover of traction machine
On vertical traction machine, convenient processing and manufacture is compact-sized, is suitable for lead-screw elevator.
Description of the drawings
Fig. 1 is the front view of vertical traction machine in the utility model specific embodiment；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the A-A sectional views of Fig. 1；
Fig. 4 is the B-B sectional views of Fig. 2；
In figure：1- casings, 10- casing ontologies, 11- upper end covers, 12- bottom end covers, 14- rotors, 15- stators, 16- encoders
Cover board, 17- motor wire-connecting boards, 18- connection box for motor, 2- shafts, 21- positioning shaft shoulders, 22- positioning keys, 3- frictional disks, 31- rub
Wipe disk mounting cylinder, 4- brake plates, 5- armature, 6- tripping springs, 7- electromagnetic coils, 8- spline housings, 9- supporting plates.
Specific implementation mode
The technical solution of the utility model is described in detail below by specific embodiment.
Lead-screw elevator includes that vertical traction machine, screw-nut mechanism and car, screw are fixedly connected with car.Extremely such as Fig. 1
Shown in Fig. 4, vertical traction machine includes the shaft 2 that casing 1 and the axis being fixed in casing 1 vertically extend, casing packet
Upper end cover 11, bottom end cover 12 and the casing ontology 10 between upper and lower end cap are included, stator 15 is embedded in casing ontology 10,
The upper and lower ends of shaft 2 are pierced by from upper end cover 11 and bottom end cover 12 respectively, and rotor 14, the lower end of shaft 2 are fixed in shaft 2
It is connected with leading screw by shaft coupling, the upper end of shaft is equipped with brake.
Brake includes frictional disk 3, the brake plate 4 above frictional disk 3 and the armature 5 positioned at 3 lower section of frictional disk.On
End cap 11 has yoke seat protruding upward, is equipped with tripping spring 6 and electromagnetic coil 7 in yoke seat, wherein tripping spring 6 is
Compressed spring, top is mounted between armature and upper end cover.Shock-damping structure is additionally provided between yoke seat and armature 5, brake plate 4 passes through sky
Heart sleeve and screw are fixed on the upper surface of yoke seat.Frictional disk 3 includes discoid disk body and is protruded downward by disk body
The both sides up and down of frictional disk mounting cylinder 31, disk body are respectively equipped with friction plate.2 upper end of shaft is fixed with spline housing 8, on spline housing 8
Equipped with external splines, internal spline is equipped in frictional disk mounting cylinder 31, external splines and internal spline form spline pair, and frictional disk 3 passes through this
Spline pair rotation stop is assemblied in shaft 2, and frictional disk can move up and down in shaft, the armature 5 of the lower section of frictional disk
It can move up and down, armature 5 is the disk-like structure with central through hole, and the center that frictional disk mounting cylinder is passed down through armature 5 is logical
Hole.Shaft 2 is equipped with up-small and down-big positioning shaft shoulder 21, and step is face-up.Spline housing 8 passes through the positioning key 22 that is radially arranged
Rotation stop is assemblied in shaft 2, and supporting plate 9 is equipped between spline housing 8 and positioning shaft shoulder, and the plate-like that supporting plate 9 radially extends can be held in the palm
The firmly lower face of frictional disk mounting cylinder.When assembly, supporting plate 9, spline housing 8 are sequentially placed into the top of positioning shaft shoulder 21, and pass through
Positioning key 22 realizes top that is circumferentially positioned, then being stuck in the clamp spring being axially arranged spline housing 8, to by spline housing 8 and supporting plate 9
It is fixed in the positioning shaft shoulder 21 of shaft 2.Rotary encoder 13 is also equipped on the upper surface of shaft.For accommodating rotary coding
The encoder cartridge of device 13 is fixed on brake plate 4, and the top of encoder cartridge is removable to be equipped with encoder cover board 16.Outside casing 1
Side is equipped with connection box for motor 18, and motor wire-connecting board 17 is accommodated in connection box for motor 18.
When electromagnetic coil powers off, frictional disk is pressed on brake plate by armature upwards under the action of tripping spring, production
Raw braking moment, there are the gaps of 0.5mm, brake to be in on-position between armature and upper end cover upper surface at this time；Work as electricity
When magnetic coil is powered, armature is moved down by electromagnetic force is close to upper end cover upper surface, and frictional disk moves down under the effect of gravity, until
The lower end of frictional disk mounting cylinder is pressed on supporting plate, i.e., frictional disk entirety is by backstop above positioning shaft shoulder, and frictional disk is upper at this time
All there is air gap between side and brake plate, between the downside and armature of frictional disk, when which is that brake is in on-position
The half in gap, specially 0.25mm between armature and upper end cover, at this time brake be in release conditions.
In the present embodiment, the vertical traction machine in lead-screw elevator is permanent magnetic synchronous traction machine, brake and traction machine one
Design, compact-sized, cost is lower；It directly drives elevator lead-screw to drive car operation by shaft coupling, is mainly used for leading screw angle
Type elevator, it is more efficient compared to steel wire rope traction machine；By flanged joint, installation, maintenance are convenient.Pass through rotary encoder pair
Elevator carries out closed-loop control, that is, the control for using the output quantity of control system to return to input terminal and had an impact to control process
System can realize active, accurately control.
In other embodiments, when brake is in release conditions, the air gap of both sides can also be different above and below frictional disk；Turn
It can also use other that can realize rotation stop between axis and frictional disk and ensure that the concaveconvex structure relatively moved up and down matches；It rubs
Disc structure can also directly be used by wiping disk, can also save supporting plate, make the lower face of frictional disk directly with positioning shaft shoulder block
Cooperation.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can be with technical scheme described in the above embodiments is modified, or is carried out to which part technical characteristic etc.
With replacement；And these modifications or replacements, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (10)
1. vertical traction machine, including shaft that casing and the axis that is fixed in casing vertically extend, casing includes upper
The upper end of end cap, shaft is pierced by from upper end cover, it is characterised in that：The upper end of shaft is equipped with brake, and brake includes rotation stop
The frictional disk being assemblied in shaft and the brake plate being located above frictional disk being fixed on casing, the lower section of frictional disk is equipped with can
The armature moved up and down, is equipped with tripping spring and electromagnetic coil between armature and upper end cover, the shaft is equipped with step surface court
On positioning shaft shoulder, frictional disk can move up and down in shaft, when electromagnetic coil powers off, effect of the armature in tripping spring
Under push up frictional disk and compress it on brake plate, there are gaps, brake to be between armature and upper end cover upper surface
On-position；When the solenoid is activated, armature is moved down by electromagnetic force is close to upper end cover, while frictional disk is made in gravity
With lower to moving down and by block above positioning shaft shoulder, there is gas in the both sides up and down of frictional disk with brake plate and armature respectively
Gap, brake are in release conditions.
2. vertical traction machine according to claim 1, it is characterised in that：When brake is in release conditions, frictional disk with
Brake plate is identical with the air gap of armature, for brake be in on-position when armature and upper end cover upper surface between gap one
Half.
3. vertical traction machine according to claim 1 or 2, it is characterised in that：Spline housing is fixed in shaft, spline is arranged
There are external splines, frictional disk to be equipped with internal spline, internal spline and external splines form spline pair.
4. vertical traction machine according to claim 3, it is characterised in that：Frictional disk includes disk body and is protruded downward by disk body
Frictional disk mounting cylinder, the internal spline is located in frictional disk mounting cylinder, and the armature is the disk-like structure with central through hole,
Frictional disk mounting cylinder is passed down through the central through hole of armature；Between the positioning shaft shoulder and frictional disk be equipped with supporting plate, spline housing and
Supporting plate is fixed on by the flat key being radially arranged and the clamp spring being axially arranged in the positioning shaft shoulder of shaft, in the release shape of brake
When state, the lower end of frictional disk mounting cylinder is pressed on supporting plate.
5. vertical traction machine according to claim 1, it is characterised in that：Upper end cover has convex yoke seat, the electricity
Magnetic coil and tripping spring are mounted in yoke seat, and shock-damping structure is equipped between yoke seat and armature, and the brake plate is fixed on
On the upper surface of yoke seat.
6. vertical traction machine according to claim 1, it is characterised in that：The upper end of shaft is equipped with rotary encoder, under
End is equipped with the shaft coupling for connecting leading screw, and vertical traction machine is permanent magnetic synchronous traction machine.
7. lead-screw elevator, including vertical traction machine and screw-nut mechanism and car, screw are fixedly connected with car, vertical traction
Machine includes the shaft that casing and the axis being fixed in casing vertically extend, and casing includes upper end cover, bottom end cover and position
Casing ontology between upper and lower end cap, is equipped with stator in casing ontology, the upper and lower ends of shaft respectively from upper end cover and under
It is pierced by end cap, rotor is fixed in shaft, the lower end of shaft is connected by shaft coupling with leading screw, it is characterised in that：Shaft
Upper end is equipped with brake, and brake includes the frictional disk that is assemblied in shaft of rotation stop and is fixed on being located on frictional disk on casing
The lower section of the brake plate of side, frictional disk is equipped with armature moving up and down, and tripping spring and electricity are equipped between armature and upper end cover
Magnetic coil, the shaft are equipped with the face-up positioning shaft shoulder of step, and frictional disk can move up and down in shaft, work as electromagnetic wire
When circle power-off, frictional disk is pressed on brake plate by armature upwards under the action of tripping spring, armature and upper end cover upper end it
Between there are gaps, brake to be in on-position；When the solenoid is activated, armature is displaced downwardly to upper end cover by electromagnetic force
Place, frictional disk move down and by block under the effect of gravity above positioning shaft shoulder, both sides up and down and brake plate and the rank of frictional disk
There is air gap in iron, brake is in release conditions.
8. lead-screw elevator according to claim 7, it is characterised in that：When brake is in release conditions, frictional disk distance
Brake plate is identical with the air gap of armature, is the half in gap between armature and upper end cover when brake is in on-position；Shaft
On be fixed with spline housing, there is spline housing external splines, frictional disk to be equipped with internal spline, and internal spline and external splines form spline pair；It rubs
It includes disk body and the frictional disk mounting cylinder that is protruded downward by disk body to wipe disk, and the internal spline is located in frictional disk mounting cylinder, described
Armature is the disk-like structure with central through hole, and frictional disk mounting cylinder is passed down through the central through hole of armature；The positioning shaft shoulder
Shaft is fixed on by the flat key being radially arranged and the clamp spring being axially arranged equipped with supporting plate, spline housing and supporting plate between frictional disk
Positioning shaft shoulder on, be pressed on supporting plate in the lower end of the release conditions of brake, frictional disk mounting cylinder.
9. lead-screw elevator according to claim 7 or 8, it is characterised in that：Upper end cover has convex yoke seat, the electricity
Magnetic coil and tripping spring are mounted in yoke seat, and adjustable shock-damping structure, the braking are equipped between yoke seat and armature
Plate is fixed on the upper surface of yoke seat.
10. lead-screw elevator according to claim 7 or 8, it is characterised in that：Vertical traction machine is permanent magnetic synchronous traction machine,
The upper end of shaft is equipped with rotary encoder, and closed-loop control is carried out to elevator by rotary encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052435.4U CN208008241U (en) | 2018-01-12 | 2018-01-12 | Vertical traction machine and the lead-screw elevator for using the traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820052435.4U CN208008241U (en) | 2018-01-12 | 2018-01-12 | Vertical traction machine and the lead-screw elevator for using the traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208008241U true CN208008241U (en) | 2018-10-26 |
Family
ID=63882787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820052435.4U Expired - Fee Related CN208008241U (en) | 2018-01-12 | 2018-01-12 | Vertical traction machine and the lead-screw elevator for using the traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208008241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002170A (en) * | 2018-01-12 | 2018-05-08 | 迅达（许昌）驱动技术有限公司 | A kind of vertical traction machine and the lead-screw elevator using the traction machine |
| CN114030629A (en) * | 2021-12-24 | 2022-02-11 | 曜宇航空科技（上海）有限公司 | Security protection supervisory equipment of high degree of freedom regulation formula for unmanned aerial vehicle |
-
2018
- 2018-01-12 CN CN201820052435.4U patent/CN208008241U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108002170A (en) * | 2018-01-12 | 2018-05-08 | 迅达（许昌）驱动技术有限公司 | A kind of vertical traction machine and the lead-screw elevator using the traction machine |
| CN114030629A (en) * | 2021-12-24 | 2022-02-11 | 曜宇航空科技（上海）有限公司 | Security protection supervisory equipment of high degree of freedom regulation formula for unmanned aerial vehicle |
| CN114030629B (en) * | 2021-12-24 | 2024-05-17 | 曜宇航空科技（上海）有限公司 | High-freedom-degree adjusting type security monitoring equipment for unmanned aerial vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208008241U (en) | Vertical traction machine and the lead-screw elevator for using the traction machine | |
| CN106594126A (en) | Electromagnetic brake with self-locking function | |
| CN208764200U (en) | A kind of electromagnetic power-off brake | |
| CN106678209A (en) | Electromagnetic brake for achieving separation through airflow | |
| CN104967363A (en) | Motor electrifying braking device | |
| CN108002170A (en) | A kind of vertical traction machine and the lead-screw elevator using the traction machine | |
| CN102777511A (en) | Electromagnetic clutch and air pump using same | |
| CN101934995A (en) | Multiple-magnetic pole double-loop disc brake | |
| CN205231929U (en) | Tubular motor's electromagnetic clutch device | |
| CN201063487Y (en) | Built-in type brake motor friction plate abrasion condition automatically prompting structure | |
| CN210686770U (en) | Self-balancing brake capable of preventing vertical installation from generating harmful friction | |
| CN201538629U (en) | Traction machine for elevator | |
| CN210637421U (en) | Electromagnetic brake with wear loss monitoring function | |
| CN201545582U (en) | Elevator driving device | |
| CN210225160U (en) | Moving mechanism based on hub motor and electric wheelchair thereof | |
| CN201864518U (en) | Disc type internal contracting brake for tractor | |
| CN211974842U (en) | Electromagnetic brake assembly | |
| CN208169366U (en) | A kind of heavy truck compressor electromagnetic clutch | |
| CN208581099U (en) | A kind of higher motor of mounting stability | |
| CN209481096U (en) | The electromagnetic disc type brake apparatus of hoist engine | |
| CN211283376U (en) | Traction machine with long-distance double-groove steel belt wheel | |
| CN203006827U (en) | Electromagnetic braking device | |
| CN2883778Y (en) | Friction disk type electromagnetic clutch of autocar air conditioner | |
| CN201777757U (en) | Brushless DC driving device for elevator | |
| CN201656677U (en) | DC motor with electromagnetic clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181026 |