CN218514304U - Tower crane amplitude variation motor control circuit and control box with same - Google Patents
Tower crane amplitude variation motor control circuit and control box with same Download PDFInfo
- Publication number
- CN218514304U CN218514304U CN202222100452.XU CN202222100452U CN218514304U CN 218514304 U CN218514304 U CN 218514304U CN 202222100452 U CN202222100452 U CN 202222100452U CN 218514304 U CN218514304 U CN 218514304U
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- alternating current
- current contactor
- input switch
- transformer
- 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.)
- Active
Links
Images
Landscapes
- Control And Safety Of Cranes (AREA)
Abstract
The utility model relates to the technical field of electrical control of motors, and discloses a tower crane luffing motor control circuit and a control box with the control circuit, which comprises a frequency converter, an alternating current contactor, a transformer, a rectifier, a resistor R1 and a diode V1; the power supply input end of the frequency converter is connected with the three-phase power supply input end through a power switch, and the power supply output end of the frequency converter is connected with the variable amplitude motor; the frequency converter is provided with four paths of logic input ends which are respectively connected with a forward rotation one-speed input switch, a reverse rotation one-speed input switch, a forward rotation two-speed input switch and a fault reset input switch; the transformer is connected with the power input end of the frequency converter, and the alternating current contactor is connected with the frequency converter; the rectifier is connected with the amplitude-variable brake, and the resistor R1 and the diode V1 are connected in series and then connected in parallel with the amplitude-variable brake. The utility model discloses can be through the control box just, reverse and fast, slow-speed gear function, accomplish the work of winding wire rope that becomes width of cloth subaerial, greatly reduced the safety risk.
Description
Technical Field
The utility model relates to a motor electrical control technical field, concretely relates to tower crane becomes width of cloth motor control circuit and has this control circuit's control box.
Background
The tower crane is the most common hoisting equipment used in construction sites, and is used for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like, and the tower crane is an essential equipment in construction sites.
The normal tower crane is that after the tower crane structure is installed, the luffing rope is threaded and wound under the control of an electrical system of the tower crane, at the moment, the tower crane is in a high-altitude state, and the threading and winding work of the luffing rope is carried out at high altitude after the tower is erected, so that the tower crane is not easy to operate, and has great potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide tower crane becomes width of cloth motor control circuit and has this control circuit's control box for the wire rope handling work of tower crane can go on ground, has solved and has become good fortune rope and has worn around the problem of not operating well and having the potential safety hazard in the high altitude.
In order to realize the purpose, the utility model discloses a technical scheme as follows: the tower crane amplitude varying motor control circuit comprises a frequency converter, an alternating current contactor, a transformer, a rectifier, a resistor R1 and a diode V1;
the power input end of the frequency converter is connected with the three-phase power input end through a power switch, and the power output end of the frequency converter is connected with the variable amplitude motor; the frequency converter is provided with four paths of logic input ends which are respectively connected with a forward rotation one-speed input switch, a reverse rotation one-speed input switch, a forward rotation two-speed input switch and a fault reset input switch;
the transformer is connected with the power input end of the frequency converter, the alternating current contactor comprises an alternating current contactor KA1 and an alternating current contactor KA2, and a normally open contact of the alternating current contactor KA1 is connected with a coil of the alternating current contactor KA2 in series and then connected with the transformer in parallel; one end of a coil of the alternating current contactor KA1 is connected with a PLC (programmable logic controller) end and a +24V end of the frequency converter, and the other end of the coil of the alternating current contactor is connected with a TA (timing advance) end of the frequency converter;
the alternating current contactor KA2 is provided with two normally open contacts, one normally open contact is connected between the pin 1 end of the transformer and the pin 3 end of the rectifier, and the other normally open contact is connected between the pin 2 end of the transformer and the pin 4 end of the rectifier;
the rectifier is connected with the variable amplitude brake, and the resistor R1 and the diode V1 are connected in series and then connected in parallel with the variable amplitude brake.
Furthermore, the forward rotation one-speed input switch, the reverse rotation one-speed input switch, the forward rotation two-speed input switch and the fault reset input switch are all non-locking button switches.
The control box with the variable-amplitude motor control circuit comprises a box body and a box cover which can be rotatably covered on the box body, a bottom plate is detachably fixed in the box body, the frequency converter, the alternating current contactor, the transformer, the rectifier, the resistor R1 and the diode V1 are fixed on the bottom plate, the power switch is fixed on the inner surface of the box cover, and a through hole through which a power line passes is formed in the side wall of the box body.
Further, the bottom plate is fixed to the bottom of the box body through fastening bolts.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a set up variable amplitude motor control box for the ann tears the back open that the personnel can finish in the cantilever crane concatenation of tower crane, utilizes just on the converter of control box, reversal and fast, slow gear function control variable amplitude motor, thereby accomplishes variable amplitude rope and wears to wind work subaerial, compares and wears to wind in the high altitude after founding the tower, has reduced the operation degree of difficulty, has greatly reduced safe risk, and this control box has with low costs, and the less advantage of volume has better popularization nature.
Drawings
Fig. 1 is a circuit diagram of the tower crane variable amplitude motor control circuit of the utility model;
fig. 2 is a schematic structural diagram of the control box of the present invention;
in the figure: 1-frequency converter, 2-transformer, 3-AC contactor, 4-rectifier, 5-power switch, 10-box, 20-box cover, 11-bottom plate, 12-fastening bolt and 13-through hole.
Detailed Description
In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As shown in fig. 1, the tower crane variable amplitude motor control circuit comprises a frequency converter 1, an alternating current contactor 3, a transformer 2, a rectifier 4, a resistor R1 and a diode V1;
the frequency converter 1 adopts ALPHA ALPHA6930, the power input end R, L, S end of the frequency converter 1 is connected with the three-phase power input end through the power switch 5, and the power output end U, V, W end of the frequency converter 1 is connected with the variable amplitude motor; the frequency converter 1 is provided with four logic input ends which are respectively connected with a forward rotation one-speed input switch, a reverse rotation one-speed input switch, a forward rotation two-speed input switch and a fault reset input switch. The forward rotation one-speed input switch, the reverse rotation one-speed input switch, the forward rotation two-speed input switch and the fault reset input switch are all non-locking button switches. The positive and negative rotation and the fast and slow gear functions of the variable amplitude motor can be controlled through the button switch, the positive and negative rotation and the rotation speed of the motor can be controlled, the variable amplitude rope threading work is finished on the ground, the rope threading work is finished by the aid of the electric system which needs to be recycled after a tower is erected, and safety risks are greatly reduced.
The ends L01 and L02 of the transformer 2 are respectively connected with the end S, R of the power input end 5363 of the frequency converter 1, the alternating current contactor 3 comprises an alternating current contactor KA1 and an alternating current contactor KA2, and a normally open contact of the alternating current contactor KA1 is connected with a coil of the alternating current contactor KA2 in series and then connected with the transformer 2 in parallel; one end of a coil of the alternating current contactor KA1 is connected with a PLC (programmable logic controller) end and a +24V end of the frequency converter 1, and the other end of the coil is connected with a TA end of the frequency converter 1.
The alternating current contactor KA2 is provided with two normally open contacts, one normally open contact is connected between the pin 1 end of the transformer 2 and the pin 3 end of the rectifier 4, and the other normally open contact is connected between the pin 2 end of the transformer 2 and the pin 4 end of the rectifier 4.
The rectifier 4 is connected with the amplitude-variable brake, and the resistor R1 and the diode V1 are connected in series and then connected in parallel with the amplitude-variable brake.
As shown in fig. 2, the control box with the variable amplitude motor control circuit comprises a box body 10 and a box cover 20 which can be rotatably covered on the box body 10, wherein a bottom plate 11 is detachably fixed in the box body 10, and the bottom plate is fixed with the bottom of the box body 10 through a fastening bolt 12, so that the bottom plate 11 is convenient to detach and mount. The frequency converter 1, the alternating current contactor, the transformer 2, the rectifier 4, the resistor R1 and the diode V1 are fixed on the bottom plate, the power switch 5 is fixed on the inner surface of the box cover 20, and a through hole 13 for a power line to pass through is formed in the side wall of the box body 10.
The utility model discloses an external control case for the personnel of tearing open in ann can finish the back at the cantilever crane concatenation of tower crane, utilize just, reversal and fast, slow-speed gear function on the converter 1 of control box, accomplish subaerial and become width of cloth rope and wear to wind work, greatly reduced the safety risk. The control box has the advantages of low cost and small volume, and has good popularization.
The present invention has been described in general terms, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.
Claims (4)
1. Tower crane becomes width of cloth motor control circuit, its characterized in that: the device comprises a frequency converter, an alternating current contactor, a transformer, a rectifier, a resistor R1 and a diode V1;
the power supply input end of the frequency converter is connected with the three-phase power supply input end through a power switch, and the power supply output end of the frequency converter is connected with the variable amplitude motor; the frequency converter is provided with four paths of logic input ends which are respectively connected with a forward rotation one-speed input switch, a reverse rotation one-speed input switch, a forward rotation two-speed input switch and a fault reset input switch;
the transformer is connected with the power input end of the frequency converter, the alternating current contactor comprises an alternating current contactor KA1 and an alternating current contactor KA2, and a normally open contact of the alternating current contactor KA1 is connected in series with a coil of the alternating current contactor KA2 and then connected with the transformer in parallel; one end of a coil of the alternating current contactor KA1 is connected with a PLC (programmable logic controller) end and a +24V end of the frequency converter, and the other end of the coil is connected with a TA (timing advance) end of the frequency converter;
the alternating current contactor KA2 is provided with two normally open contacts, one normally open contact is connected between the pin 1 end of the transformer and the pin 3 end of the rectifier, and the other normally open contact is connected between the pin 2 end of the transformer and the pin 4 end of the rectifier;
the rectifier is connected with the variable amplitude brake, and the resistor R1 and the diode V1 are connected in series and then connected in parallel with the variable amplitude brake.
2. The tower crane amplitude motor control circuit of claim 1, characterized in that: the forward rotation one-speed input switch, the reverse rotation one-speed input switch, the forward rotation two-speed input switch and the fault reset input switch are all non-locking button switches.
3. A control box, its characterized in that: the tower crane variable amplitude motor control circuit provided with any one of claims 1-2 comprises a box body and a box cover which can be rotatably covered on the box body, a bottom plate is detachably fixed in the box body, the frequency converter, the alternating current contactor, the transformer, the rectifier, the resistor R1 and the diode V1 are fixed on the bottom plate, the power switch is fixed on the inner surface of the box cover, and a through hole through which a power line passes is formed in the side wall of the box body.
4. The control box of claim 3, wherein: the bottom plate is fixed with the bottom of the box body through fastening bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222100452.XU CN218514304U (en) | 2022-08-10 | 2022-08-10 | Tower crane amplitude variation motor control circuit and control box with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222100452.XU CN218514304U (en) | 2022-08-10 | 2022-08-10 | Tower crane amplitude variation motor control circuit and control box with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218514304U true CN218514304U (en) | 2023-02-21 |
Family
ID=85210204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222100452.XU Active CN218514304U (en) | 2022-08-10 | 2022-08-10 | Tower crane amplitude variation motor control circuit and control box with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218514304U (en) |
-
2022
- 2022-08-10 CN CN202222100452.XU patent/CN218514304U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2008040349A8 (en) | Hoisting device | |
| CN106402203B (en) | Arm crane with brake | |
| CN201095574Y (en) | Winch frequency conversion driving system for vessel | |
| CN209797337U (en) | Redundant electric hoist | |
| CN218514304U (en) | Tower crane amplitude variation motor control circuit and control box with same | |
| CN202671090U (en) | Rope-breaking and rope-winding prevention device of bridge-type crane | |
| CN201865109U (en) | Variable-frequency control device of piling machine | |
| CN104809948A (en) | Gantry crane model | |
| CN216599128U (en) | Power supply system based on tower crane | |
| CN216588972U (en) | Electric energy management system based on energy recovery | |
| CN203445481U (en) | Sling specialized for replacing whole 66-kilovolt isolating switch set | |
| CN204496247U (en) | Auxiliary shaft intelligences combination switches cabinet | |
| CN211110794U (en) | Anti-slip hook device of hoisting tower crane with eddy current brake | |
| CN201932774U (en) | Electric cable collecting and releasing system on gantry crane | |
| CN114336698A (en) | Electric energy management system based on energy recovery | |
| CN108358064A (en) | A kind of self-powered tower crane rotary hanger device | |
| CN210084804U (en) | Double-hook double-motor hoisting equipment with manual loop chain | |
| CN205709616U (en) | Tower crane anti-power failure protection device | |
| CN206927487U (en) | A kind of suspension hook group hoist engine of new two-fold cylinder four | |
| CN105356509A (en) | Lifting machinery matrix type energy feedback transmission system | |
| CN113753761B (en) | Tower crane with main and auxiliary hoisting systems | |
| CN204597810U (en) | A kind of arm derrick crane motor inverter inverter circuit | |
| CN2688973Y (en) | Connecting ring for replacing crane rope | |
| CN209081313U (en) | Elevator repairs hoist engine | |
| CN204737666U (en) | Mounting structure of jib crane reel body and barrel arbor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |