CN205187684U - Converter formula hoist of cart and dolly sharing - Google Patents
Converter formula hoist of cart and dolly sharing Download PDFInfo
- Publication number
- CN205187684U CN205187684U CN201520989275.2U CN201520989275U CN205187684U CN 205187684 U CN205187684 U CN 205187684U CN 201520989275 U CN201520989275 U CN 201520989275U CN 205187684 U CN205187684 U CN 205187684U
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- Prior art keywords
- cart
- dolly
- motor
- frequency converter
- mouth
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Abstract
The utility model discloses a converter formula hoist of cart and dolly sharing, include the control end, predetermine converter, switch unit and the cart motor and the trolley motor of at least two sets of parameters of electric machine, the output of control end include that greater plantain line output end, cart retreat output, the quick output of cart, dolly and go forward output, dolly and retreat output, the quick output of dolly and switching output end, the switch unit changeable and will the motor touchstone S -parameter output of correspondence of converter give cart motor or trolley motor. The utility model discloses a hoist manufactures link the cost is reduced, has reduced in a converter and all return circuits of front end the reduction of electrical component and specifications such as supply cable and electric cabinet size. Do not cancelling on frequency conversion control brings the basis of superiority, also increasing final customer's purchasing power. The security of disposition of equipment in -process has improved simultaneously.
Description
Technical field
The utility model relates to technical field of crane control, particularly relates to a kind of cart and the shared frequency converter formula hoisting crane of dolly.
Background technology
In current Crane Industry, along with popularizing of converter technique, converter technique brings huge preceence to Crane Industry, and the operation of most each mechanism of European hoisting crane generally all takes Frequency Converter Control.Under normal circumstances, in hoisting crane electric system, configure Frequency Converter Control operating unit, as cart Frequency Converter Control cart runs, dolly Frequency Converter Control trolley travelling.
The purchase cost of all at least thousands of unit of every platform frequency converter.And Crane Industry is increasingly competitive instantly, productive costs is to provide most of core competitiveness, reduces configuration unnecessary or distributes rationally, directly can be turned into the money that company or client save.
The operation of the corresponding mechanism of a usual frequency converter, can accomplish that two mechanisms operate simultaneously, as carried out the operation of cart and dolly simultaneously.But safe in operation problem is considered at a lot of scene, all clear stipulaties operating personal must not operate the operation of Liang Ge mechanism simultaneously, to avoid safety misadventure.The hoisting crane even requiring hoisting crane manufacturer to provide all comprises this function.Also has a lot of occasion, the displacement action of one of them of cart or dolly is little, such as mould handling station, the precision related to is higher, but under normal circumstances the cart of overhead traveling crane is reached die-filling station, after adjustment dolly makes mould and die-filling position level align, only need to complete die-filling by adjustment cart, the actions such as form removal, do not need to operate the situation that cart runs together with dolly substantially simultaneously.Also have some to be the complementary hoisting crane that a certain station adds specially, substantially after crane movable to station, only carry out cart or one of them direction of dolly, when relating to the operation across station once in a while, just operate another mechanism's translation.This just causes the waste of frequency converter resource virtually.
Utility model content
The purpose of this utility model is the technological deficiency for existing in prior art, and provides a kind of cart and dolly to share a frequency converter formula hoisting crane.
The technical scheme adopted for realizing the purpose of this utility model is:
A kind of cart and dolly share a frequency converter formula hoisting crane, comprise control end, be preset with the frequency converter of at least two group parameters of electric machine, switch unit and cargo motor and vehicle motor, the mouth of described control end comprises cart and moves ahead that mouth, cart retreat mouth, the quick mouth of cart, dolly advance mouth, dolly retreat mouth, the quick mouth of dolly and switch mouth, and described switch unit is changeable and the parameter of electric machine of the correspondence of described frequency converter is exported to cargo motor or vehicle motor.
Described switch unit comprises multiple relay be serially connected in respectively on the mouth of control end, to realize action output and the parameter of electric machine switches and the parameter of electric machine of described frequency converter is exported to cargo motor or vehicle motor on the multi-function input terminal that the normally closed contact of described relay or open contact are arranged on the correspondence of frequency converter.
Second motor of described frequency converter exports and is serially connected with contactless switch, and described cargo motor and vehicle motor are connected to the control output end of frequency converter through a pair open contact of contactless switch and normally closed contact respectively.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is that hoisting crane manufacturing link reduces cost, decreases the reduction of electric components and supply cable and electric cabinet size equal-specification in all loops of a frequency converter and front end.Bring on the basis of preceence not cancelling variable frequency control, too increase the purchasing power of End-Customer.Improve the safety in equipment use process simultaneously.And the switching of cart and dolly sharing frequency converter uses, make the energy-conserving and environment-protective more of whole equipment, later maintenance cost is corresponding reduction also.There is operational factor that cart is different with dolly equally, different running frequency as adjustable in size, cart and the adjustable different parameter of electric machine of dolly, cart and the adjustable different Acceleration and deceleration time of dolly etc. and different VF curves or vector controlled etc.
Accompanying drawing explanation
Figure 1 shows that cart of the present utility model and dolly share the structural representation of a frequency converter formula hoisting crane.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the cart running velocity control system of overhead traveling crane of the present utility model comprises switch unit U2, frequency converter U3 that control end U1, cart and dolly control, cart and dolly output switching unit U4, cargo motor U5, vehicle motor U6.Described control end U1 comprises cart and to move ahead mouth U1-1, cart retreats mouth U1-2, the quick mouth U1-3 of cart, dolly hoists mouth U1-4, dolly decline mouth U1-5, the quick mouth U1-6 of dolly and switching mouth U1-7, described switch unit controls to comprise multiple relay K 1 being serially connected in the mouth of control end respectively, K2, K3, K4, K5, K6 and K7, the multi-function input terminal that the normally closed contact of described relay or open contact are serially connected in the correspondence of frequency converter switches to realize the parameter of electric machine and the parameter of electric machine of described frequency converter is exported to cargo motor or vehicle motor.
Wherein, second motor of described frequency converter exports and is serially connected with contactless switch, described cargo motor and vehicle motor are connected to the control output end of frequency converter through a pair open contact of contactless switch and normally closed contact respectively, can ensure cargo motor and complete the performing an action of vehicle motor like this, avoid switching suddenly or touch by mistake the accident caused and occur.
Specifically, if handle controls, can be regarded as the button switch that operating instruction button is a folk art term, first grade of connection during flicking, heavily press down second gear to connect, as cart forwarding button, flicking go down gear connect to be cart advancement commands, heavily press down two gears all to connect, corresponding cart advances and cart very fast instruction.And cart and dolly control to switch the switching push button that can be regarded as on a handle.
The cart advance mouth U1-1 of described cart operating instruction unit, through one end of the K2-1 normally closed contact contact relay K1 coil of mode switch element U2; Cart retreats instruction output end U1-3 through one end of the K1-1 normally closed contact contact relay K2 coil of mode switch element U2, forms interlocking loop with K1; Cart very fast instruction connects K3 coil one end.
The dolly advance mouth U1-4 of described trolley travelling command unit, through one end of the K5-1 normally closed contact contact relay K4 coil of mode switch element U2; Dolly retreats instruction output end U1-5 through one end of the K4-1 normally closed contact contact relay K5 coil of mode switch element U2, forms interlocking loop with K4; Dolly very fast instruction connects K6 coil one end.
The switch unit U2 that described cart and dolly control, comprises 7 group relaies.Each instruction of cart and trolley travelling instruction U1 is by the action of control K1, K2, K3, K4, K5, K6, K7 coil control U3 cart frequency converter input block indirectly.
It is pointed out that when specific implementation, met the frequency converter of selection by the change of the contact of relay and correspondence, the function namely preset with reference to frequency converter multi-function input terminal and signal condition table carry out setting.
The function that the frequency converter multi-function input terminal that table 1 is depicted as certain model frequency converter is preset and signal condition table:
Table 1
Arrange frequency instruction source for multifunction terminal input, No. 1 terminal function is that motor rotates forward; No. 2 terminal functions are motor reversal; No. 3 terminal functions are multistage speed 1; No. 4 terminal functions are multistage speed 2; No. 5 functions are the input of switching second motor, and No. 6 terminals are for controlling common port (hardware is fixing).No. 7 terminals are the control output end mouth of frequency converter, and No. 8 ports are preset as the second motor output end mouth.Wherein, the parameter that cargo motor is corresponding is: setting pick-up time is 2s; Deceleration time is 3S, Rated motor parameter, rating horsepower 4.4KW, rated current 9.6A, rated speed of rotation 2850 etc., and setting electric machine control mode is vector controlled, and frequency opened by band-type brake is 2HZ.Second parameter of electric machine is set as: pick-up time is 1S, and deceleration time is 1S, rating horsepower 2.2KW, rated current 4.8A, rated speed of rotation 2850 etc., setting electric machine control mode is that VF controls, frequency opened by band-type brake is 0HZ, and namely two kinds of parameters of electric machine can be arranged arbitrarily according to actual conditions.
Wiring: frequency converter U3 controls common port 6, after a pair normally closed contact K7-3 of relay K 7, accesses U3-1, U3-2, U3-3 port after relay normally open contact K1-2, K2-2, K3-1 of parallel connection; Frequency converter U3 controls common port 6 also after a pair open contact K7-2 of relay K 7, after relay normally open contact K4-2, K5-2, K6-1 of parallel connection, access U3-1, U3-2, U3-4 port respectively; Frequency converter U3 controls common port 6, after a pair open contact K7-1 of relay K 7, and access U3-5 port.
The switch unit U4 of the cart told and dolly input, comprise the contactless switch K8 of its another termination N line of coil one termination frequency converter second motor output end mouth 8, its a pair open contact K8-1 controls cart and drives U5, a pair normally closed contact K8-2 of contactless switch K8 controls dolly and drives U6, by the control of the second motor output end mouth, can ensure motor run complete, the accident avoiding enforceable switching to cause and action not smooth.
The cart told and trolley travelling motor U5, U6 are the three phase asynchronous motor for weight-lifting equipment translation mechanism common on market.
Concrete Systematical control detailed annotation is as follows:
1. under normal circumstances, system default is cart master mode: command unit U1-7 port Non voltage output;
Relay K 7 attonity, K7-1, K7-2 contact is all off state.U3 multi-function input terminal U3-5 no-voltage inputs, and state is 0.Now, when U1 command unit sends trolley travelling instruction, any relay adhesive wherein of K4, K5, K6 relay, K4-2, K5-2, K6-1 close thereupon, but the K7-2 connected with it is off state, therefore U3 control common port U3-6 does not carry out the control to U3 by these relays.
Now corresponding in U3 system the second motor output end mouth 8 also Non voltage output, the non-adhesive of contactless switch K8 coil.K8-1 is in closure state.Current frequency converter U3 exports No. 7 ports and can only power to cargo motor U5.
A. when operating personal presses cart forwarding button, command unit U1-1, sends electric signal, relay K 1 adhesive.Now K1-2 closes, and control frequency converter common port and U3-1 multifunctional access wire end lead to, and motor rotates forward, and the 15HZ frequency of pressing multistage speed combination 1 default is run.Crane advances at a slow speed.And the Acceleration and deceleration time pressed under cart operational mode, carry out accelerating or stopping.
B. when operating personal presses cart back, principle as above, not in burden.
C. when operating personal press cart quick time (advancing fast for cart): command unit U1-1, U1-3 send instruction, relay K 1, the adhesive of K3 coil.Relay contact K1-2, K3-1 are closed, and now the multi-functional input port of U3-1, U3-3 obtains electric, and motor rotates forward and runs by the 80HZ frequency that multistage speed combination 2 is preset.Crane advances fast.And press cart operational mode Acceleration and deceleration time once, carry out accelerating or stopping.
D, when operating personal presses dolly direction controlling, input and output all, can not control trolley travelling.
2. systematic evaluation, when operating personal needs the occasion using dolly.By the operation change-over switch on operating handle, namely switch button corresponding to mouth or switch, switch to trolley travelling pattern: now U1-7 sends command signal, relay K 7 action, K7-1, K7-2 closing of contact.K7-3 contact disconnects.U3 multi-function input terminal 5 has voltage to input, and state is 1.Now, when U1 command unit sends cart operating instruction, any relay adhesive wherein of K1, K2, K3 relay, K1-2, K2-2, K3-1 close thereupon, but the K7-3 connected with it is off state, therefore U3 control common port 6 does not carry out the control to U3 by these relays.
After the operation of cargo motor completes, the second now corresponding in U3 system motor output end mouth 8 has voltage to export, contactless switch K8 adhesive.K8-2 is in closure state, and K8-1 contact disconnects.Current frequency converter U3 exports No. 7 ports and can only power to vehicle motor U6.
K7-1 closes, and No. U3-5, frequency converter is held electric, and current frequency converter switches to second parameter of electric machine to run.
A. when operating personal presses dolly forwarding button, command unit U1-4, sends electric signal, relay K 4 adhesive.Now K4-2 closes, and control frequency converter common port and U3-4 multifunctional access wire end lead to, and vehicle motor rotates forward, and the 15HZ frequency of pressing multistage speed combination 1 default is run.Hoisting crane is little to advance at a slow speed.And by pattern Acceleration and deceleration time once, carry out accelerating or stopping.
B, when operating personal presses dolly back, motor reversal, and carry out slow astern by the 15HZ frequency operation that multistage speed combination 1 is preset.
C. when operating personal presses dolly advance top button, control frequency converter common port and 1, No. 4 multifunctional access wire end lead to, and motor rotates forward, and advance fast by the 60HZ frequencies that multistage speed combination 3 is default.
D. when operating personal presses dolly retrogressing top button, control frequency converter common port and 2, No. 4 multifunctional access wire ends lead to, motor reversal, and press the default 60HZ frequencies operation rapid backward of multistage speed combination 3.
Do not repeat them here.
The multistage speed that certain frequency converter is corresponding can carry out just arranging arbitrarily property according to different application occasion.Make the use of hoisting crane more be partial to intellectuality, allow operating personal use more safely and efficiently.
At this, frequency converter control system of the present utility model and method, provide the technical scheme of a Frequency Converter Control two operating units.Be applicable to numerous occasion.And reducing costs, improve high full operation, reduce in later maintenance cost, do not affect on-the-spot practicality.
The above is only preferred implementation of the present utility model; it should be noted that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a cart and dolly share a frequency converter formula hoisting crane, it is characterized in that, comprise control end, be preset with the frequency converter of at least two group parameters of electric machine, switch unit and cargo motor and vehicle motor, the mouth of described control end comprises cart and moves ahead that mouth, cart retreat mouth, the quick mouth of cart, dolly advance mouth, dolly retreat mouth, the quick mouth of dolly and switch mouth, and described switch unit is changeable and the parameter of electric machine of the correspondence of described frequency converter is exported to cargo motor or vehicle motor.
2. hoisting crane as claimed in claim 1, it is characterized in that, described switch unit comprises multiple relay be serially connected in respectively on the mouth of control end, to realize action output and the parameter of electric machine switches and the parameter of electric machine of described frequency converter is exported to cargo motor or vehicle motor on the multi-function input terminal that the normally closed contact of described relay or open contact are arranged on the correspondence of frequency converter.
3. hoisting crane as claimed in claim 2, it is characterized in that, second motor of described frequency converter exports and is serially connected with contactless switch, and described cargo motor and vehicle motor are connected to the control output end of frequency converter through a pair open contact of contactless switch and normally closed contact respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989275.2U CN205187684U (en) | 2015-12-02 | 2015-12-02 | Converter formula hoist of cart and dolly sharing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520989275.2U CN205187684U (en) | 2015-12-02 | 2015-12-02 | Converter formula hoist of cart and dolly sharing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205187684U true CN205187684U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520989275.2U Expired - Fee Related CN205187684U (en) | 2015-12-02 | 2015-12-02 | Converter formula hoist of cart and dolly sharing |
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| Country | Link |
|---|---|
| CN (1) | CN205187684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329778A (en) * | 2015-12-02 | 2016-02-17 | 天津德仕达起重输送设备有限公司 | Crane with cart and car sharing one frequency converter |
-
2015
- 2015-12-02 CN CN201520989275.2U patent/CN205187684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105329778A (en) * | 2015-12-02 | 2016-02-17 | 天津德仕达起重输送设备有限公司 | Crane with cart and car sharing one frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160427 Termination date: 20211202 |