CN107128821A - Locomotive crane power drive system and locomotive crane - Google Patents
Locomotive crane power drive system and locomotive crane Download PDFInfo
- Publication number
- CN107128821A CN107128821A CN201710463104.XA CN201710463104A CN107128821A CN 107128821 A CN107128821 A CN 107128821A CN 201710463104 A CN201710463104 A CN 201710463104A CN 107128821 A CN107128821 A CN 107128821A
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- China
- Prior art keywords
- subsystem
- locomotive crane
- drive subsystem
- drive
- bus
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/50—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes mounted on railway vehicles, e.g. breakdown cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a kind of locomotive crane power drive system and locomotive crane.The locomotive crane power drive system that the present invention is provided includes：At least a set of power sub-system and multiple drive subsystems；Power sub-system includes rectification circuit and coaxially connected diesel engine and generator, and the input electrical connection of generator output end and rectification circuit, the output end of rectification circuit is electrically connected with dc bus；Drive subsystem includes electric brake subsystem, revolution drive subsystem, at least a set of traveling drive subsystem and at least a set of raising drive subsystem, wherein, electric brake subsystem, revolution drive subsystem, traveling drive subsystem and raising drive subsystem are electrically connected with dc bus.It is locomotive crane power drive system and the transmission efficiency of locomotive crane that the present invention is provided, high to the control accuracy of locomotive crane.
Description
Technical field
The present invention relates to crane technical field, more particularly to a kind of locomotive crane power drive system and railway lifting
Machine.
Background technology
Locomotive crane can be used for rail vehicles the rising for accident such as derail, overturn to rescue again, be also applied for large-scale goods
The handling of thing, equipment install and construction of railways in the laying section of track and the engineer operation etc. such as change track switch, build a bridge.
The power drive system of locomotive crane of the prior art typically uses internal combustion engine-hydraulic power transmission system：
Diesel engine is connected with hydraulic pump, Diesel Driven hydraulic pump, and mechanical energy is converted into hydraulic energy, passes through hydraulic system transfers to liquid
Pressure motor or hydraulic jack, drive execution structure to perform action.
But, internal combustion engine-hydraulic power transmission system exist transmission efficiency it is not high, to the action control of locomotive crane essence
The not high technical problem of degree.
The content of the invention
The present invention provides a kind of locomotive crane power drive system and crane, with overcome in the prior art internal combustion engine-
The technical problem that transmission efficiency is not high, the action control precision to locomotive crane is not high of hydraulic power transmission system.
The present invention provides a kind of locomotive crane power drive system, including：At least a set of power sub-system and multiple biographies
Subsystem；
The power sub-system include rectification circuit and coaxially connected diesel engine and generator, the generator it is defeated
The input for going out end and the rectification circuit is electrically connected, and the output end of the rectification circuit is electrically connected with dc bus；
The multiple drive subsystem includes electric brake subsystem, revolution drive subsystem, at least a set of traveling transmission
System and at least a set of raising drive subsystem；Wherein, electric brake subsystem, revolution drive subsystem, traveling drive subsystem
Electrically connected with raising drive subsystem with the dc bus；
The traveling drive subsystem, for driving locomotive crane to move on the railroad track；
The raising drive subsystem, for the raising with animal body or landing；
The revolution drive subsystem, for driving the getting on the bus relative to the locomotive crane of the locomotive crane
Get off and rotated；
The electric brake subsystem, the output voltage no more than predetermined threshold value for keeping the dc bus.
Locomotive crane power drive system as described above, the traveling drive subsystem includes：First frequency converter,
One motor and the first decelerator；
The input of first frequency converter is electrically connected with the dc bus, the output end of first frequency converter and institute
State the first motor electrical connection, first motor also with first decelerator mechanically connect, first decelerator also with institute
The axletree for stating locomotive crane is mechanically connected；
The traveling drive subsystem, specifically for by driving the axletree of the locomotive crane to rotate, driving is described
Locomotive crane is moved on the railroad track.
Locomotive crane power drive system as described above, the traveling drive subsystem also includes the first brake,
First brake is socketed in the rotating shaft of first motor.
Locomotive crane power drive system as described above, the raising drive subsystem includes：Second frequency converter,
Two motors and the second decelerator；
The input of second frequency converter is electrically connected with the dc bus, the output end of second frequency converter and institute
The electrical connection of the second motor is stated, second motor is also mechanically connected with second decelerator, the shell of second decelerator
Mechanically connected with the reel of the locomotive crane；
The raising drive subsystem, specifically for by driving spool turns, so that the steel wire being connected with the reel
Rope is wrapped on the reel, the raising with animal body；Or,
The raising drive subsystem, specifically for by driving spool turns, so that the steel wire being connected with the reel
Rope departs from the reel, the landing with animal body.
Locomotive crane power drive system as described above, the raising drive subsystem also includes second brake,
The second brake is socketed in the rotating shaft of second motor.
Locomotive crane power drive system as described above, the revolution drive subsystem includes：3rd frequency converter,
Three motors and the 3rd decelerator；
The input of 3rd frequency converter is electrically connected with the dc bus, the output end of the 3rd frequency converter and institute
State the 3rd motor electrical connection, the 3rd motor also with the 3rd decelerator mechanically connect, the 3rd decelerator also with iron
The swiveling gear of road crane is mechanically connected；
The revolution drive subsystem, specifically for by driving swiveling gear to rotate, driving getting on the bus for locomotive crane
Turned round relative to getting off for locomotive crane.
Locomotive crane power drive system as described above, the revolution drive subsystem also includes the 3rd brake,
3rd brake is socketed in the rotating shaft of the 3rd motor.
Locomotive crane power drive system as described above, the electric brake subsystem includes：Chopper circuit and braking
Resistance；
The input of the chopper circuit is electrically connected with the dc bus, the output end of the chopper circuit and the system
Dynamic resistance electrical connection.
The present invention also provides a kind of locomotive crane, including as above any described locomotive crane power drive system.
The locomotive crane power drive system of the present invention includes：At least a set of power sub-system and multiple transmission subsystems
System；Power sub-system includes rectification circuit and coaxially connected diesel engine and generator, generator output end and rectification circuit
Input electrical connection, the output end of rectification circuit electrically connects with dc bus；Drive subsystem includes electric brake subsystem, returned
Turn drive subsystem, at least a set of traveling drive subsystem and at least a set of raising drive subsystem, wherein, electric braking subsystem
System, revolution drive subsystem, traveling drive subsystem and raising drive subsystem are electrically connected with dc bus.Traveling transmission
System, for driving locomotive crane to move on the railroad track；Raising drive subsystem, for raising or drop with animal body
Fall；Drive subsystem is turned round, for driving getting on the bus for locomotive crane to be rotated relative to getting off for locomotive crane；Electricity system
Subsystem, the output voltage no more than predetermined threshold value for keeping dc bus.The locomotive crane power transmission of the present invention
It is the transmission efficiency of system, high to the control accuracy of the action of locomotive crane, and locomotive crane can be ensured for can independent work
The individual of work.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
The structural representation one for the locomotive crane power drive system that Fig. 1 provides for the present invention；
The structural representation two for the locomotive crane power drive system that Fig. 2 provides for the present invention；
The structural representation for the locomotive crane that Fig. 3 provides for the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The structural representation one for the locomotive crane power drive system that Fig. 1 provides for the present invention.Referring to Fig. 1, this implementation
The locomotive crane power drive system of example can include：At least a set of power sub-system 11 and multiple drive subsystems；
Power sub-system 11 includes rectification circuit 113 and coaxially connected diesel engine 111 and generator 112, generator
The input electrical connection of 112 output ends and rectification circuit 113, the output end of rectification circuit 113 is electrically connected with dc bus 13；
Drive subsystem includes electric brake subsystem 121, revolution drive subsystem 122, at least a set of traveling transmission subsystem
System 123 and at least a set of raising drive subsystem 124, wherein, electric brake subsystem 121, revolution drive subsystem 122, traveling
Drive subsystem 123 and raising drive subsystem 124 are electrically connected with dc bus 13.
Traveling drive subsystem 123, for driving locomotive crane to move on the railroad track；
Raising drive subsystem 124, for the raising with animal body or landing；
Drive subsystem 122 is turned round, for driving the getting on the bus relative to the progress of getting off of locomotive crane of locomotive crane
Rotate；
Electric brake subsystem 121, the output voltage no more than predetermined threshold value for keeping dc bus 13.
Specifically, the power sub-system 11 of the locomotive crane power drive system of the present embodiment can be a set of, be preferably
Two sets.
If the power sub-system 11 of the locomotive crane power drive system of the present embodiment be two sets, each power sub-system it
Between relation can be following form：The power or power that wherein a set of power sub-system 11 is provided can meet each transmission
The need for subsystem normal work, the another set of function of playing Hot Spare；Or, the power that two sets of power sub-systems 11 are provided it
With it could meet each drive subsystem normal work the need for.
Similarly, in the case of more than two sets of power sub-systems, the relation between each power sub-system is with reference to power subsystem
System 11 is two sets of situation.
Wherein, the power that every suit power sub-system 11 is provided can be identical, can also differ.
More specifically, power sub-system 11 includes rectification circuit 113 and coaxially connected diesel engine 111 and generator
112, the input electrical connection of the output end of generator 112 and rectification circuit 113, the output end and dc bus of rectification circuit 113
13 electrical connections.
Wherein, diesel engine 111 is as the power source of power sub-system, and generator 112 is co-axially mounted with diesel engine 111, logical
The rotation rotor driven for crossing diesel engine 111 is rotated, and generator 112 utilizes " electromagnetic induction " principle, sends three-phase alternating current.
Generator 112 inputs three-phase alternating current to rectification circuit 113 through output end, and rectification circuit 113 is by generator 112
The three-phase alternating current of input is rectified into direct current, exports to dc bus 13, electric energy is provided for each drive subsystem.Wherein, it is whole
Current circuit 113 is preferably three-phase bridge rectifier circuit.
Diesel engine powers are used in the present embodiment, drives generator to rotate and produces electric energy, realize internal combustion engine-electronic
The power kind of drive, the internal combustion engine-electric power kind of drive of the present embodiment is passed compared to internal combustion engine of the prior art-hydraulic power
Flowing mode has the advantages that transmission efficiency, high to the control accuracy of the action of locomotive crane.In addition, the present embodiment internal combustion
The advantages of also there is low running noises, service life length, easy care in machine-electric power kind of drive.Meanwhile, used in the present embodiment
Diesel engine powers, drive generator to rotate and produce electric energy, it is also possible that locomotive crane is carried without external electrical network
Power supply can, it is to avoid if locomotive crane needs laying cable connection to external electrical network when being powered by external electrical network the problem of,
It is the individual that can work independently to ensure locomotive crane, thereby using convenient.
The locomotive crane power drive system drive subsystem of the present embodiment includes electric brake subsystem 121, revolution and passed
Subsystem 122, at least a set of traveling drive subsystem 123 and at least a set of raising drive subsystem 124, wherein, electric braking
Subsystem 121, revolution drive subsystem 122, traveling drive subsystem 123 and raising drive subsystem 124 are and dc bus
13 electrical connections.
Wherein, traveling drive subsystem 123, for driving locomotive crane to move on the railroad track, move mode can
For the walking of relying on oneself advanced or retreated.Traveling drive subsystem 123, preferably two sets, two sets of traveling drive subsystems 123 are distinguished
Drive two axletrees of locomotive crane so that locomotive crane realizes the walking of relying on oneself advanced or retreated；And two sets of travelings are passed
When subsystem 123 can avoid wherein a set of failure of traveling drive subsystem 123, another set of traveling drive subsystem
123 remain to normal work, realize that locomotive crane realizes the walking of relying on oneself advanced or retreated.
Raising drive subsystem 124, for the raising with animal body or landing.Raising drive subsystem 124, preferably two
Set, when two sets of raising drive subsystems 124 can avoid wherein a set of failure of raising drive subsystem 124, another set of
Rise drive subsystem 124 and remain to normal work, realize raising of the locomotive crane with animal body or landing.
Drive subsystem 122 is turned round, for driving the getting on the bus relative to the progress of getting off of locomotive crane of locomotive crane
Rotate.
Electric brake subsystem 121, the output voltage no more than predetermined threshold value for keeping dc bus 13, specially：When
When the output voltage that the control system of locomotive crane detects dc bus 13 is higher by predetermined threshold value, electric braking is sent a signal to
Subsystem 121, electric brake subsystem 121 is started working, and the part that the output voltage of dc bus 13 is higher by into predetermined threshold value turns
It is melted into thermal energy consumption.
After locomotive crane power drive system is activated, diesel engine 111 rotate drive generator 112 rotation so as to
Three-phase alternating current is produced, direct current, output to dc bus are obtained after the rectified rectification of circuit 113 of three-phase alternating current of generation
13.When traveling drive subsystem 123 works, traveling drive subsystem 123 obtains electric energy from dc bus 13, so as to drive iron
Road crane carries out walking of relying on oneself；When raising drive subsystem 124 works, raising drive subsystem 124 is from dc bus 13
Electric energy is obtained, so that raising or landing with animal body；When turning round the work of drive subsystem 122, drive subsystem 122 is turned round
Electric energy is obtained from dc bus, so as to drive getting on the bus for locomotive crane to be rotated relative to getting off for locomotive crane.
The locomotive crane power drive system of the present embodiment includes：At least a set of power sub-system and multiple transmission subsystems
System；Power sub-system includes rectification circuit and coaxially connected diesel engine and generator, generator output end and rectification circuit
Input electrical connection, the output end of rectification circuit electrically connects with dc bus；Multiple drive subsystems include electric braking subsystem
System, revolution drive subsystem, at least a set of traveling drive subsystem and at least a set of raising drive subsystem, wherein, electric braking
Subsystem, revolution drive subsystem, traveling drive subsystem and raising drive subsystem are electrically connected with dc bus.Traveling is passed
Subsystem, for driving locomotive crane to move on the railroad track；Raising drive subsystem, for the raising with animal body
Or landing；Drive subsystem is turned round, for driving getting on the bus for locomotive crane to be rotated relative to getting off for locomotive crane；
Electric brake subsystem, the output voltage no more than predetermined threshold value for keeping dc bus.The locomotive crane of the present embodiment is moved
It is power transmission system transmission efficiency, high to the control accuracy of the action of locomotive crane, and locomotive crane can be ensured for can be only
The individual of vertical work.
Below using specific embodiment to the electric brake subsystem in a upper embodiment, revolution drive subsystem, traveling
Drive subsystem and raising drive subsystem are described in detail.
The structural representation two for the locomotive crane power drive system that Fig. 2 provides for the present invention.
Referring to Fig. 2, the traveling drive subsystem 123 of the crane power drive system of the present embodiment includes：First frequency conversion
Device 21, the first motor 22, the first decelerator 23；
The input of first frequency converter 21 is electrically connected with dc bus 13, output end and the first motor of the first frequency converter 21
22 electrical connections, the first motor 22 is also mechanically connected with the first decelerator 23, axletree of first decelerator 23 also with locomotive crane
Mechanically connect；
Traveling drive subsystem 123, specifically for by driving the axletree of locomotive crane to rotate, driving locomotive crane
Move on the railroad track.
The raising drive subsystem 124 of the crane power drive system of the present embodiment includes：Second frequency converter 31, second
Motor 32, the second decelerator 33；
The input of second frequency converter 31 is electrically connected with dc bus 13, output end and the second motor of the second frequency converter 31
32 electrical connections, the second motor 32 also mechanically connects with the second decelerator 33, the shell of the second decelerator 33 and locomotive crane
Reel is mechanically connected；
Raising drive subsystem 124, specifically for by driving spool turns, so that the wirerope-winding being connected with reel
On reel, the raising with animal body；Or,
Raising drive subsystem 124, specifically for by driving spool turns, so that the steel wire rope being connected with reel departs from
Reel, the landing with animal body.
Drive subsystem 122 is turned round, including：3rd frequency converter 41, the 3rd motor 42, the 3rd decelerator 43；
The input of 3rd frequency converter 41 is electrically connected with dc bus 13, output end and the 3rd motor of the 3rd frequency converter 41
42 electrical connections, the 3rd motor 42 is also mechanically connected with the 3rd decelerator 43, revolution of the 3rd decelerator 43 also with locomotive crane
Gear mechanism is connected；
Drive subsystem 122 is turned round, specifically for by driving swiveling gear to rotate, driving the phase of getting on the bus of locomotive crane
Turned round for getting off for locomotive crane.
Electric brake subsystem 121 includes：Chopper circuit 51 and braking resistor 52；The input of chopper circuit 51 is female with direct current
Line 13 is electrically connected, and the output end of chopper circuit 51 is electrically connected with braking resistor 52.
Specifically, the input of the first frequency converter 21 of traveling drive subsystem 123 is electrically connected with dc bus, by direct current
The DC inverter inputted on bus passes through output end and the first electricity of the first frequency converter 21 into the three-phase alternating current of variable voltage variable frequency
Machine 22 is electrically connected.Wherein, the first frequency converter 21 uses vector control technology, with over-pressed, under-voltage, excessively stream, overload, overheat, lack
Equal defencive function.
First motor 22 of traveling drive subsystem 123 can use three-phase alternating current squirrel-cage asynchronous motor, be lifted on iron
On the bogie of road crane.The input of first motor 22 is electrically connected with the output end of the first frequency converter 21, by the first frequency conversion
The electric energy of the output of device 21 is converted into mechanical energy.
First decelerator 23 of traveling drive subsystem 123 is mechanically connected with the first motor 22, when the first motor 22 is rotated
When, drive the pinion rotation of the first decelerator 23 to be slowed down, so as to drive the axletree on locomotive crane bogie to rotate, enter
And the walking of relying on oneself for driving locomotive crane downline road to advance or retreat.First decelerator 23 can use planetary reduction gear.
In order to ensure safety of the locomotive crane in advance or retrogressing, traveling drive subsystem 123 may also include first
Brake 24, the first brake 24 is socketed in the rotating shaft of the first motor 22.When needing brake hard traveling drive subsystem 123
When, the control system of locomotive crane outputs signal to the first brake 24, and the first brake 24 holds turning for the first motor 22 tightly
Axle, the first motor 22 is braked, than braking the first motor 22 such as by spring or electromagnetic pressure.People in the art
Member it should be understood that in traveling 123 normal work of drive subsystem, the first brake 24 in opened condition, i.e., with the first motor
There is hole between 22 rotating shaft.First brake can use normally closed type multiple-disc brake.
The input of second frequency converter 31 of raising drive subsystem 124 is electrically connected with dc bus 13, by dc bus
The DC inverter inputted on 13 passes through output end and the second motor of the second frequency converter 31 into the three-phase alternating current of variable voltage variable frequency
32 electrical connections.Second frequency converter uses vector control technology, and work(is protected with over-pressed, under-voltage, excessively stream, overload, overheat, phase shortage etc.
Energy.
Second motor 32 of raising drive subsystem 124 can use three-phase alternating current squirrel-cage asynchronous motor, the second motor
32 input is electrically connected with the output end of the second frequency converter 31, converts electrical energy into mechanical energy.
Second decelerator 33 of raising drive subsystem 124 is mechanically connected with the second motor 32, and the second decelerator 33 is usual
Installed in the inside of the reel of locomotive crane, shell and the reel of the second decelerator 33 can pass through bolt link.When the second electricity
When machine 32 is rotated, after the pinion rotation of the second decelerator 33 of drive is slowed down, the shell of the second decelerator 33 is driven to rotate, from
And drive spool turns.Steel wire rope is wound with reel, when the second decelerator 33 driving reel is rotated towards first direction, steel wire
Rope departs from from reel, so that the landing with animal body；When the second decelerator 33 driving reel is rotated towards second direction, steel wire
Restrict and wound on reel, so that the raising with animal body.Wherein, steel wire rope can bypass the suspension hook clamping by its lower end after pulley
Object.
In order to ensure safety of the locomotive crane in raising or falling body, raising drive subsystem 124 may also include
Second brake 34, second brake 34 is socketed in the rotating shaft of the second motor 32.Subsystem is driven when needing brake hard raising
During system, the control system of locomotive crane outputs signal to second brake 34, and second brake 34 holds the second motor 32 tightly
Rotating shaft, the second motor 32 is braked, than braking the second motor 32 such as by spring or electromagnetic pressure.Art technology
Personnel should be understood that in locomotive crane raising 124 normal work of drive subsystem, second brake 34 in opened condition,
There is hole i.e. between the rotating shaft of the second motor 32.Second brake 34 can use normally closed type multiple-disc brake.
The input for turning round the 3rd frequency converter 41 of drive subsystem 122 is electrically connected with dc bus 13, by dc bus
The DC inverter inputted on 13 passes through output end and the 3rd motor of the 3rd frequency converter 41 into the three-phase alternating current of variable voltage variable frequency
42 electrical connections.3rd frequency converter 41 uses vector control technology, with the protection such as over-pressed, under-voltage, excessively stream, overload, overheat, phase shortage
Function.
Three-phase alternating current squirrel-cage asynchronous motor, the 3rd motor can be used by turning round the 3rd motor 42 of drive subsystem 122
42 input is electrically connected with the output end of the 3rd frequency converter 41, converts electrical energy into mechanical energy.
3rd decelerator 43 of revolution drive subsystem 122 is mechanically connected with the 3rd motor 42, when the 3rd motor 42 is rotated
When, drive the pinion rotation of the 3rd decelerator 43 to be slowed down, the 3rd decelerator 43 drives swiveling gear to rotate, rotary teeth wheel driving
Dynamic getting on the bus for crane is turned round relative to getting off for crane.3rd decelerator 43 can use planetary reduction gear.
In order to ensure safety during locomotive crane upper-part rotation, revolution drive subsystem 122 may also include the 3rd braking
Device 44, the 3rd brake 44 is socketed in the rotating shaft of the 3rd motor 42.When needing brake hard to turn round drive subsystem 122,
Control system outputs signal to the 3rd brake 44, and the 3rd brake 44 holds the rotating shaft of the 3rd motor 42 tightly, by the 3rd motor 42
Braked, than braking the 3rd motor 42 such as by spring or electromagnetic pressure.It will be appreciated by those skilled in the art that, returning
When turning 122 normal work of drive subsystem, the 3rd brake 44 in opened condition, i.e., has between the rotating shaft of the 3rd motor 42
Hole.3rd brake 44 can use normally closed type multiple-disc brake.
Electric brake subsystem 121 includes chopper circuit 51 and braking resistor 52.
The input of chopper circuit 51 is connected directly between dc bus 13, output end and the braking resistor 52 of chopper circuit 51
Electrical connection.When locomotive crane needs deceleration walking or stops walking or the down or up speed of object needs deceleration or stops
When rising or falling, the frequency converter of corresponding drive subsystem receives the control information that the control system of locomotive crane is sent, and makes
Obtain corresponding motor and be in power generation mode, cause the voltage of dc bus 13 to raise.When the control system of locomotive crane is detected
When the output voltage of dc bus 13 is higher by predetermined threshold value, chopper circuit 51 is sent a signal to, chopper circuit 51 is started working, will
The part that the output voltage of dc bus 13 is higher by predetermined threshold value changes into thermal energy consumption by braking resistor 52.Art technology
Personnel should be understood that predetermined threshold value herein is exported to the magnitude of voltage of dc bus equal to the rectification module of power sub-system 11.
The embodiment of the present invention also provides a kind of locomotive crane.
The structural representation for the locomotive crane that Fig. 3 provides for the present invention, the railway lifting provided referring to Fig. 3, the present invention
Machine 61, including the as above power drive system 62 of the locomotive crane of any embodiment.
The power transmission that the locomotive crane that the present embodiment is provided passes through the locomotive crane including as above any embodiment
System so that the operating efficiency of locomotive crane is high and operating accuracy is high.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (9)
1. a kind of locomotive crane power drive system, it is characterised in that including：At least a set of power sub-system and multiple transmissions
Subsystem；
The power sub-system includes rectification circuit and coaxially connected diesel engine and generator, the output end of the generator
Electrically connected with the input of the rectification circuit, the output end of the rectification circuit is electrically connected with dc bus；
The multiple drive subsystem includes electric brake subsystem, revolution drive subsystem, at least a set of traveling drive subsystem
At least a set of raising drive subsystem；Wherein, electric brake subsystem, revolution drive subsystem, traveling drive subsystem and rise
Drive subsystem is risen to electrically connect with the dc bus；
The traveling drive subsystem, for driving locomotive crane to move on the railroad track；
The raising drive subsystem, for the raising with animal body or landing；
The revolution drive subsystem, the getting off relative to the locomotive crane of getting on the bus for driving the locomotive crane
Rotated；
The electric brake subsystem, the output voltage no more than predetermined threshold value for keeping the dc bus.
2. locomotive crane power drive system according to claim 1, it is characterised in that the traveling drive subsystem
Including：First frequency converter, the first motor and the first decelerator；
The input of first frequency converter is electrically connected with the dc bus, the output end of first frequency converter and described the
One motor electrically connect, first motor also with first decelerator mechanically connect, first decelerator also with the iron
The axletree of road crane is mechanically connected；
The traveling drive subsystem, specifically for by driving the axletree of the locomotive crane to rotate, driving the railway
Crane is moved on the railroad track.
3. locomotive crane power drive system according to claim 2, it is characterised in that the traveling drive subsystem
Also include the first brake, first brake is socketed in the rotating shaft of first motor.
4. locomotive crane power drive system according to claim 1, it is characterised in that the raising drive subsystem
Including：Second frequency converter, the second motor and the second decelerator；
The input of second frequency converter is electrically connected with the dc bus, the output end of second frequency converter and described the
Two motors are electrically connected, and second motor is also mechanically connected with second decelerator, the shell of second decelerator and institute
The reel for stating locomotive crane is mechanically connected；
The raising drive subsystem, specifically for by driving spool turns, so as to be twined with the steel wire rope that the reel is connected
It is wound on the reel, the raising with animal body；Or,
The raising drive subsystem, specifically for by driving spool turns, so that the steel wire rope being connected with the reel is de-
From the reel, the landing with animal body.
5. locomotive crane power drive system according to claim 4, it is characterised in that the raising drive subsystem
Also include second brake, the second brake is socketed in the rotating shaft of second motor.
6. locomotive crane power drive system according to claim 1, it is characterised in that the revolution drive subsystem
Including：3rd frequency converter, the 3rd motor and the 3rd decelerator；
The input of 3rd frequency converter is electrically connected with the dc bus, the output end of the 3rd frequency converter and described the
Three motors are electrically connected, and the 3rd motor is also mechanically connected with the 3rd decelerator, and the 3rd decelerator also rises with railway
The swiveling gear of heavy-duty machine is mechanically connected；
The revolution drive subsystem, specifically for by driving swiveling gear to rotate, getting on the bus for driving locomotive crane is relative
Turned round in getting off for locomotive crane.
7. locomotive crane power drive system according to claim 6, it is characterised in that the revolution drive subsystem
Also include the 3rd brake, the 3rd brake is socketed in the rotating shaft of the 3rd motor.
8. locomotive crane power drive system according to claim 1, it is characterised in that the electric brake subsystem bag
Include：Chopper circuit and braking resistor；
The input of the chopper circuit is electrically connected with the dc bus, the output end of the chopper circuit and the braking electricity
Resistance electrical connection.
9. a kind of locomotive crane, it is characterised in that including the locomotive crane power as described in any one of claim 1~8
Transmission system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463104.XA CN107128821A (en) | 2017-06-19 | 2017-06-19 | Locomotive crane power drive system and locomotive crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463104.XA CN107128821A (en) | 2017-06-19 | 2017-06-19 | Locomotive crane power drive system and locomotive crane |
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| CN107128821A true CN107128821A (en) | 2017-09-05 |
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ID=59735407
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710463104.XA Pending CN107128821A (en) | 2017-06-19 | 2017-06-19 | Locomotive crane power drive system and locomotive crane |
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| Country | Link |
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| CN (1) | CN107128821A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115506440A (en) * | 2022-08-26 | 2022-12-23 | 太原欧陆机电工程有限公司 | Intelligent protection system and method for out-of-rotation control and computer equipment |
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Application publication date: 20170905 |