CN206955517U - Small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism - Google Patents
Small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism Download PDFInfo
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- CN206955517U CN206955517U CN201720204538.3U CN201720204538U CN206955517U CN 206955517 U CN206955517 U CN 206955517U CN 201720204538 U CN201720204538 U CN 201720204538U CN 206955517 U CN206955517 U CN 206955517U
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- brake
- decelerator
- motor
- shaft
- braking moment
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Abstract
It the utility model is related to small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism.The drive device, increase a brake installation axle newly from reducer power input shaft by speedup, brake mount is fixed on speed reducer housing；The fall arrest latch of the bull gear drive free degree on energy grappling output shaft is set on the shell of reducer output shaft side, and the device can strengthen the security that the dangerous cargo of lifting vacantly stops；Motor reel is that coaxial or axle sleeve is affixed with high-speed shaft of speed reducer, and motor base and speed reducer housing rigidly fix, and only decelerator single support and the external world connects after integrating.Compared with prior art, braking moment can significantly reduce, brake appearance and size diminishes, single support integration can avoid the assembly precision of base stress deformation destruction drive set component, transmission is more smooth, rotary inertia diminishes after removing the shaft coupling on motor reel, is lowered consumption beneficial to the loss of weight for opening braking and crane of mechanism.
Description
Technical field
A kind of small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism are the utility model is related to,
It can apply on various types of lifting mechanism and crane, there is wide applicability.
Background technology
Brake, motor, decelerator etc. is needed to form drive device in crane and some lifting mechanisms, and conventional
Drive device layout is more scattered, and assembly precision is easily destroyed after the deformation of crane small cart frame stand under load, and braking reliability declines,
This just needs to be equipped with a kind of relatively reliable drive device.Small braking moment fall arrest single support drive device refers to small torque
Brake, new-type decelerator and motor integrate, and change the scattered layout of its original.Meanwhile increase a kind of fall arrest
Device, prevent misfunctioning of brake from triggering falling accident, so as to improve the reliability of whole lifting mechanism.
The drive device of existing crane hoisting mechanism be mainly motor by shaft coupling, floating axle, shaft coupling with
Decelerator is connected, and reel is housed on reducer output shaft, and reel draws hoist rope pulley by leading block or directly
Suspension hook group, brake is on the line shaft of motor driving.This kind of driving is in crane loading rated load weight, due to rising
Moderate finite deformation can be occurred by rising mechanism supports platform, due to assembly precision between motor, brake and decelerator, trigger high speed shaft
The rotational vibrations of part.Conventional brake, motor and decelerator are the mounting means of the scattered connection of coaxial line, through repeatedly hanging
After dress, the lifting mechanism support frequent stand under load of vehicle frame, the permanent deformation of fatigue accumulation easily occurs, destroys initial assembly relation,
The damage of each part of drive device can be caused, reduces its service life and lifting mechanism safety in utilization.
Further, since some crane much time usings, some parts easily fail, such as, when weight is hanging
When certain height and position is maintained at after liftoff stopping, the unexpected failure of breaking down such as brake on high-speed drive chain, cause lift heavy
Fall suddenly, such consequence is extremely serious.
Rational drive arrangement form can improve and keep assembly precision, can also make its structure compacter,
It is easy to repair, while the deadweight of lifting mechanism can also be reduced.Rational falling proof device, crane job safety can be improved
Property, increase reliability.
In summary, the drive device of existing crane hoisting mechanism, it is not only complicated, and destroy assembling essence
Degree, reduce service life.The drive device of existing crane hoisting mechanism also lacks multiple drop-proof and falls protection, when in drive shaft
Misfunctioning of brake when, the security for being difficult to ensure operation after slow-speed shaft deadman's brake failure is considered further that, so as to which cause can
It is not high by property, also under cover very big potential safety hazard.
The content of the invention
The purpose of this utility model is to provide a kind of drive device of small braking moment Electromagnetic bolt formula fall arrest single support,
Stand under load deformation causes asking for whole drive device assembly precision destruction during solving not compact enough Mechanism of crane arrangement and work
Topic.Due to crane much time using, some parts easily fail, such as the brake catastrophic failure of crane, and this is ten
Divide danger.Therefore, it is very necessary to design a kind of slow-speed shaft falling proof device.Meanwhile the purpose of this utility model also exists
In providing a kind of corresponding new lifting mechanism, make the more energy efficient consumption reduction of crane.
To achieve the above object, small braking moment Electromagnetic bolt formula fall arrest single support drive device side of the present utility model
Case is as follows.
A kind of drive device of small braking moment Electromagnetic bolt formula fall arrest single support, including small torque brake (2),
New-type decelerator (1), motor (3) and falling proof device.The power input shaft (14) of the decelerator increases one newly by speedup
Root brake installation axle (13), and small torque brake (2) is mounted on the shaft, and brake mount (21) is fixed in decelerator
On shell；The axle of the motor (3) and the high speed shaft of decelerator (1) are affixed for coaxial or axle sleeve, and motor (3) directly passes through
The abutted flange of ring flange (17) and new-type decelerator (1) is fixed together, and small braking moment brake, motor and new-type subtracts
The only bearing of decelerator and the external world is fixedly mounted after fast device three is integrated；I.e. new-type decelerator (1), small torque brake (2)
An entirety is integrated into motor (3) three, externally only mounting seat, the i.e. single support of decelerator (1), the branch of decelerator
Seat can be horizontal, vertical or three fulcrum types etc..The design method of single support specifically has two obvious advantages：Avoid first
Destruction of the frame distortion to whole drive device assembly relation, makes transmission more smooth, can improve power train when rising mechanism lift heavy
In the life-span of system, reliability is enhanced, be easy to the overall package of crane；Secondly, take up space and diminish, eliminate motor and subtract
Shaft coupling and floating axle between fast device, save arrangement space.Analyzed by the reasonable computation of drive device rotary inertia, it is known that
By in the rotary inertia of the gear (16) in brake installation axle (13) conversion to motor reel, itself and reducer power input shaft
(14) the rotary inertia sum of the gear (15) increased newly on is less than the rotary inertia of the gear coupling of traditional arrangement mode, thus
It can be seen that this design method is more beneficial for the startup of motor, decline starting torque, extend the life-span of motor.Small braking
Torque refers to, a rotating speed new axle (13) faster is outwards expanded by power input shaft (14) in decelerator, brake (2) is pacified
On the axle, compared with traditional scheme, rotating speed increase, braking moment reduces, and the brake model and appearance and size of selection become
It is small, arrangement space is saved, makes structure compacter.Falling proof device refers to, the gear wheel (11) of the reducer output shaft
Several arcuate sockets are opened on spoke, circular hole support plate (19) is set on the housing of decelerator slow-speed shaft gear wheel side, subtracted
Perforate on fast device shell, the hole and the hole coaxial line on circular hole support plate (19), and install two in speed reducer housing position of opening
The individual movable latch being engaged with circular hole on gear wheel spoke, the angle of two latches (41) are greater than phase on gear (11)
The even angle of the cut-off of two arcuate sockets, while less than the rotating shaft core central angle of any one circular hole.When lifting mechanism rises
When lift heavy thing vacantly stops in the air, the power button power-off of magnetic valve is manipulated, latch (41) runs through insertion tooth by compression spring
Take turns in the arcuate socket and circular hole support plate (19) of (11), constitute the falling proof device of freely-supported；When lift heavy needs to move up and down
When, first by magnetic valve (4) power-on button, magnetic valve (4) driving latch (41) departs from gear wheel spoke circular hole, related connection electricity
Motivation lock-up cock (42), motor start-up, lift heavy can be lifted normally.Falling proof device is provided with can grappling canine tooth rotation
The fall arrest latch of the dynamic free degree, it is possible to increase the security that lifting cargo vacantly stops, therefore the application of the device is to lifting
Machine safety work is highly important.Such as：When ladle carne lifting steel ladle is maintained at a certain height, if high speed axle
Upper component failure, consequence is extremely serious, and falling proof device is in such a case, it is possible to reduce the probability of accident generation.
To illustrate that the small braking moment of drive device of the present utility model, rotary inertia have reduced, opened beneficial to motor
The advantages of dynamic, carry out following effectively conservative estimate analysis.
Traditional lifting mechanism, brake are arranged on motor reel, the brake force for the separate unit brake that mechanism braking needs
Square MzhaFor：
In formula, PjFor drive mechanism motor rated power (kW), nNFor drive motor rated speed (r/min), mz
For coaxially arranged brake quantity, KzFor brake safe coefficient.
In the utility model, if the gearratio of new brake shaft to motor reel is iz, ordinary circumstance can ensure iz
>=2, a piece brake installation axle is increased newly by speedup from the power input shaft of decelerator, brake is installed on this axle, works as system
When dynamic device quantity is constant, the braking moment for the separate unit brake that mechanism braking needs drops to：
Again with the decline situation of the conservative estimation rotary inertia of some examples.
By taking 20t bridge cranes as an example, specific data calculation specifications are carried out.
According to 20t bridge cranes, it is known that the drive device of the lifting mechanism of the conventional drive scheme using
The motor of YZR250M1-8 models and the decelerator of ZQ650 models, using two CL3 type gear couplings.Due to this
The braked wheel of utility model significantly reduces, and will not increase after the conversion of its rotary inertia, not consider here.Motor speed used
For 720r/min, power 30kw；The centre-to-centre spacing a=650mm, a of decelerator used1=250mm, a2=400mm, if decelerator
Gear material is 40cr, density 7.9g/cm3；The rotary inertia of single CL3 types shaft coupling is Jd1=0.13kgm2。
Conventional drive scheme motor reel shaft coupling rotary inertia is：
Jd=0.13 × 2=0.26kgm2。
Accordingly, it is as follows that a pair of newly-increased gear design parameters of estimation bigger than normal are guarded：
Gear (15) modulus is 2.5, the number of teeth 100, thickness 66mm, reference diameter d1=260 mm；
The quality m of gear (15)1=23.61kg and rotary inertia Jz1=0.109kgm2；
Gear (16) modulus is 2.5, the number of teeth 25, thickness 66mm, reference diameter d2=66mm；
The quality m of gear (16)2=1.78kg and rotary inertia Jz2=1.9 × 10-3kg·m2；
Gear (16) is converted to the rotary inertia on motor reel：
Motor reel of the present utility model is bigger than normal to estimate that rotary inertia is：
Jthis=Jz1+Jzs=0.109+0.03=0.139kgm2。
From this example, JthisSignificantly less than Jd, the utility model is more beneficial for motor start-up.
By multiple example calculations, the rotary inertia needed for this design diminishes, and is advantageous to the startup of motor, tool
Volume data see the table below, and each amount unit of other two example is consistent with upper example in table.
From upper table data, the utility model has the advantages of rotary inertia is small.
The utility model additionally provides a kind of above-mentioned small braking moment Electromagnetic bolt formula fall arrest single support driving dress of application
The lifting mechanism for the crane put, including the utility model drive device and suspension hook, steel wire rope, assembly pulley and reel winding dress
Put, the decelerator slow-speed shaft (12) of the utility model drive device by drum coupling drive reel wind hoist rope with
Load-engaging device, realize the lifting of lift heavy.
The utility model can be used for lifting mechanism, travelling mechanism, slew gear or the jib lubbing mechanism of crane.
The utility model can be also used for other mechanical devices.
Brief description of the drawings
Fig. 1 is drive device sketch, wherein (1) is decelerator, (2) are brake, and (3) are motor, and (11) are deceleration
Gear on device slow-speed shaft, (12) are the slow-speed shaft of decelerator, and (13) are high speed shaft new after decelerator is expanded, and (14) are deceleration
The power input shaft of device, (15) are the gear wheel newly established on reducer input shaft, and (16) are the tooth on expansion high speed shaft
Wheel, (18) are speed reducer housing, and (19) are circular hole supporting plate, and (4) are magnetic valve, and (41) are latch, (42) motor lock make and break
Close.
Fig. 2 is falling proof device graphics, wherein (11) are the gear on decelerator slow-speed shaft, (19) support for circular hole
Plate, (4) are magnetic valve, and (41) are latch, and (5) are reel.
Fig. 3 is gear configurations figure, wherein (11) are the gear on decelerator slow-speed shaft.
Fig. 4 is circular hole support plate schematic diagram.
Fig. 5 is the transmission sketch of crane hoisting mechanism double crosslinking drum, wherein (1) is decelerator, (2) are brake, (3)
For motor, (4) are magnetic valve, and (5) are reel.
Fig. 6 is decelerator A-A direction views, wherein (1) is decelerator, (17) are ring flange, and (2) are brake, and (21) are
Brake support, (4) are magnetic valve.
Fig. 7 is the transmission sketch of crane hoisting mechanism simply connected reel, wherein (1) is decelerator, (2) brake, and (3)
For motor, (4) are magnetic valve, and (5) are reel.
Embodiment
In order to more clearly understand technology contents of the present utility model, spy is described in detail with embodiment.
The drive device embodiment of small braking moment Electromagnetic bolt formula fall arrest single support.
A kind of drive device of small braking moment Electromagnetic bolt formula fall arrest single support, including new-type decelerator (1), small power
Moment brake (2) and motor (3).New-type decelerator (1) is arranged on dolly end carriage, new-type decelerator (1) and motor
(3) coaxially connected or axle sleeve is affixed, is fixed together with ring flange (17), when electric motor operation, by torque by decelerator and
Coaxial (14) of motor are delivered on new-type decelerator (1), and new-type decelerator (1) passes torque to further according to gear engagement
On slow-speed shaft (12), slow-speed shaft (12) rotates, and passes torque in the drum mechanism built being connected with decelerator slow-speed shaft, from
And rotated with movable reel (5), the lifting of weight is realized, and small torque brake (2) is arranged on what decelerator was increased newly by speedup
In brake installation axle (13), brake mount (21) is also fixed together with speed reducer housing (18), when mechanism needs to brake
When, brake (2) plays a role, and brake application braking, completes task.According to circumference on the output shaft gear wheel spoke of decelerator
Several arcuate sockets are opened by certain angle, using gear wheel (11) center as origin, in 20 degree of arrangements between Kong Yukong, in decelerator
Circular hole support plate (19), and the perforate on speed reducer housing are welded by certain angle on the shell of slow-speed shaft gear wheel side, should
Hole on hole and circular hole support plate (19) is equal in magnitude and coaxial line, while two and gear wheel wheel are installed on shell relevant position
The telescopic electronic latch that circular hole is engaged on spoke, the telescopic electronic latch are by magnetic valve (4) and its end position
What the spring and the latch supporting with arcuate socket (41) put were formed, angle is more than decelerator gear wheel (11) between two latches
Angle on spoke between Kong Yukong.When lifting mechanism hoisting heavy vacantly stops in the air, the power supply for manipulating magnetic valve is pressed
Key powers off, and latch (41) in the arcuate socket and circular hole support plate (19) of insertion gear (11), constitutes letter by compression spring
The falling proof device of branch；When lift heavy needs to move up and down, first by magnetic valve (4) power-on button, magnetic valve (4) driving latch
(41) disengaging gear wheel spoke circular hole, related connection motor lock-up cock (42), motor start-up, lift heavy can normally rise
Drop.
The carrying out practically situation of the drive device is described below：Upon power-up of the system, magnetic valve (4), which is powered, produces magnetic field
Power, latch is suctioned out out of gear (11) hole, motor lock-up cock (42) is opened, and motor (3) starts to rotate, connection electricity
Number of gear teeth on motivation input shaft (14) is less, by the engagement of gear, transfers power to the more low speed output of the number of teeth
On axle (12), the axis connection reel (5), reel (5) is set to realize with the elevating movement of certain speed.When lifting mechanism hoisting heavy
In the air during hanging stop, the power button power-off of magnetic valve is manipulated, latch (41) is by compression spring through insertion gear (11)
Arcuate socket and circular hole support plate (19) in, constitute the falling proof device of freely-supported；When lift heavy needs to move up and down, first by electricity
Magnet valve (4) power-on button, magnetic valve (4) driving latch (41) depart from gear wheel spoke circular hole, related connection motor locking
Switch (42), motor start-up, lift heavy can be lifted normally.
Lifting mechanism embodiment.
Lifting mechanism, key mechanism drive device and drum mechanism built.Motor (3) and decelerator coaxial (14) connection or axle
Cover affixed, be fixed together with ring flange (17), small torque brake (2) is arranged on decelerator and passes through the newly-increased brake of speedup
In installation axle (13), brake mount (21) is fixed together with speed reducer housing, decelerator slow-speed shaft (12) and drum mechanism built
Drive connection, and above-mentioned falling proof device is designed on slow-speed shaft.Lifting mechanism can be driven by motor and complete weight
Lifting.
The drive device of small braking moment Electromagnetic bolt formula fall arrest single support is same as described above, here, repeating no more.
Crane embodiment.
The crane of the present embodiment, including lifting mechanism and travelling mechanism, lifting mechanism employ small braking moment electromagnetism
The drive device of bolt-type fall arrest single support, with previous examples completely just as therefore no longer independent narration.
The embodiment that the utility model is related to is presented above, but the utility model is not limited to the implementation of description
Mode.Under the thinking that the utility model provides, to above-mentioned reality by the way of being readily apparent that to those skilled in the art
Apply the technological means in example and enter line translation, replacement, modification, and play a part of and the utility model in relevant art means
Purpose of utility model that is essentially identical, realizing is essentially identical, and the technical scheme so formed is to be finely adjusted shape to examples detailed above
Into, this technical scheme is still fallen within the scope of protection of the utility model.
Claims (8)
1. a kind of small braking moment Electromagnetic bolt formula fall arrest single support drive device, including small torque brake, new-type deceleration
Device and motor, it is characterised in that the retarder driven power input shaft increases a brake installation axle newly by speedup, and will
Small torque brake is arranged on the new axle, and brake mount is fixed on speed reducer housing；The reducer output shaft it is big
Several arcuate sockets are opened on gear spoke, are set on the shell of decelerator slow-speed shaft gear wheel side and circle on gear wheel spoke
The electronic latch that arc hole is engaged, it is ensured that when lift heavy vacantly stops, latch is injected in arcuate socket, forms steerable bolt-type anchor
Determine falling proof device；The power input shaft and motor reel of the decelerator are affixed for coaxial or axle sleeve, and motor base is also firm
Property be fixed on speed reducer housing, only decelerator after small braking moment brake, motor and new-type decelerator three are integrated
Bearing and extraneous be fixedly mounted.
2. a kind of small braking moment Electromagnetic bolt formula fall arrest single support drive device according to claim 1, its feature
It is, the retarder driven power input shaft increases a brake installation axle newly by speedup, and one or two is any type of
Small torque brake is mounted on the shaft.
3. a kind of small braking moment Electromagnetic bolt formula fall arrest single support drive device according to claim 1, its feature
It is, the scalable electricity coordinated with the arcuate socket on gear wheel spoke is set in decelerator on the shell of low speed Large Gear Shaft
Dynamic latch, it is ensured that when lift heavy vacantly stops, latch is injected in arcuate socket, forms steerable bolt-type grappling falling proof device,
Related setting motor lock-up cock, prevent latch anchor timing motor is powered from starting.
4. a kind of small braking moment Electromagnetic bolt formula fall arrest single support drive device according to claim 1, its feature
It is, the power input shaft of motor reel and decelerator is affixed for coaxial or axle sleeve；Reducer power input shaft is roller gear
Or during conical gear, motor base is fixed in speed reducer housing side or upper surface.
5. a kind of lifting mechanism, the small braking moment Electromagnetic bolt formula fall arrest single support both referred to including the claims 1
Drive device, in addition to drum coupling, reel, fixed pulley group, leading block group, movable pulley suspension hook group, steel wire rope, lifting capacity
With lifting height limiter etc., the steel wire rope on reel is realized directly or around leading block haulage cable assembly pulley and takes thing to fill
The elevating movement with lift heavy is put, when motor forward or reverse, reel winding or the release load-engaging device such as steel wire rope, suspension hook and institute
Hanging object product, which are realized, rises or drops motion；Characterized in that, the retarder driven power input shaft increases a brake newly by speedup
Installation axle, and small torque brake is mounted on the shaft, and brake mount is fixed on speed reducer housing；The decelerator
Several arcuate sockets are opened on the gear spoke of slow-speed shaft, installation and circular arc on the shell in the non-supported area of decelerator Large Gear Shaft
The retractable electric latch that hole coordinates, it is ensured that when lift heavy vacantly stops, latch is injected in arcuate socket, forms steerable bolt-type
Grappling falling proof device；The power input shaft and motor reel of the decelerator are affixed for coaxial or axle sleeve, motor base
Rigidly fix on speed reducer housing, only slow down after small braking moment brake, motor and new-type decelerator three are integrated
The bearing of device and extraneous fixed installation.
6. lifting mechanism according to claim 5, it is characterised in that the retarder driven power input shaft is new by speedup
Increase a brake installation axle, one or two any type of small torque brake is mounted on the shaft.
7. lifting mechanism according to claim 5, it is characterised in that in decelerator on slow-speed shaft, there is provided movable
Bolt-type fall arrest anchoring device and its motor lock-up cock.
8. lifting mechanism according to claim 5, it is characterised in that the power input shaft of motor reel and decelerator is same
Axle or axle sleeve are affixed, and motor base is fixed in speed reducer housing side or upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204538.3U CN206955517U (en) | 2017-03-04 | 2017-03-04 | Small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720204538.3U CN206955517U (en) | 2017-03-04 | 2017-03-04 | Small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN206955517U true CN206955517U (en) | 2018-02-02 |
Family
ID=61377223
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720204538.3U Expired - Fee Related CN206955517U (en) | 2017-03-04 | 2017-03-04 | Small braking moment Electromagnetic bolt formula fall arrest single support drive device and lifting mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043074A (en) * | 2017-03-04 | 2017-08-15 | 太原科技大学 | Small braking moment fall arrest single support drive device and lifting mechanism |
| CN110821989A (en) * | 2019-11-11 | 2020-02-21 | 中国电子科技集团公司第三十八研究所 | Anti-falling device of elevator |
-
2017
- 2017-03-04 CN CN201720204538.3U patent/CN206955517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107043074A (en) * | 2017-03-04 | 2017-08-15 | 太原科技大学 | Small braking moment fall arrest single support drive device and lifting mechanism |
| CN110821989A (en) * | 2019-11-11 | 2020-02-21 | 中国电子科技集团公司第三十八研究所 | Anti-falling device of elevator |
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