CN202186866U - Lifter with AC (alternating current) motor controller - Google Patents
Lifter with AC (alternating current) motor controller Download PDFInfo
- Publication number
- CN202186866U CN202186866U CN2011202520765U CN201120252076U CN202186866U CN 202186866 U CN202186866 U CN 202186866U CN 2011202520765 U CN2011202520765 U CN 2011202520765U CN 201120252076 U CN201120252076 U CN 201120252076U CN 202186866 U CN202186866 U CN 202186866U
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- alternating current
- motor
- frequency
- controller
- frequency converter
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Abstract
The utility model discloses a lifter with an AC (alternating current) motor controller. The lifter comprises an upper table board, a lower table board, an inner arm support, an outer arm support, a middle box, a pull box, the controller, a frequency converter, and an AC motor, wherein the controller is connected with the frequency converter; the frequency converter is connected with the AC motor; the AC motor is a variable-frequency AC motor; the controller controls the output variable frequency of the frequency converter; the frequency converter controls the operation of the AC motor to control the lifting speed and the height of the upper table board; and the frequency conversion range of the AC motor is 20 to 60 Hz. The lifter disclosed by the utility model has the advantages of simple structure, reliable quality, running stability, accuracy in height control and the like.
Description
Technical field
The present invention relates to a kind of elevator, or rather, is a kind of elevator that has AC motor control.
Background technology
At present, various types of elevators are widely used in all trades and professions, but elevator of the prior art all do not adopt frequency-conversion alternating current motor and controller, and it is steady inadequately work, and height can not accuracy control, uses inconvenience.
Chinese invention patent ZL 99814070.8 discloses a kind of elevator, and it comprises an elevator cabin and piston that links to each other with elevator cabin and hydraulic pressure cylinder assembly, and this elevator cabin is suitable in an elevator shaft, moving.Piston in this assembly is fixed in the uppermost areas of elevator shaft, and is attached on the accessory device, and this accessory device is supporting this whole assembly and elevator cabin, and on its lowermost distal end region, links to each other with the outer liquid cylinder pressure of this assembly.This piston and hydraulic pressure cylinder assembly are telescopic, and it is made up of the piston and the hydraulic actuating cylinder of a plurality of mutual arranged concentric, and its each hydraulic chamber can communicate through valve, thereby the stretching, extension and the contraction of whole assembly can be carried out reposefully when hydraulic fluid entering or discharge.This assembly makes the inflow of hydraulic fluid will cause the overall shrinkage of moving to axial of each adjacent pistons and hydraulic cylinder component and whole assembly.Therefore this elevator cabin rises in elevator shaft.But this elevator adopts driving engine as its engine installation, does not adopt frequency-conversion alternating current motor and controller, and its work is steady inadequately.
Chinese invention patent ZL 200810300104.9 discloses a kind of lifting mechanism, comprises a support, a sliding panel, two roll wheel assemblies, a transmission component and a gravity balance device, and this roll wheel assembly comprises two rollers; These two rollers are located on this roll wheel assembly rotationally; This transmission component comprises two tooth bars and at least two gears, and these two tooth bars are symmetrically fixed on this support, and these at least two gears are located on this sliding panel; Itself and tooth bar rollably mesh; This gravity balance device comprises a stay cord and a wind spring, and this stay cord is connected, walks around roller and is connected on the sliding panel with wind spring spare, and this wind spring is rotationally connected with on the support.But this lifting mechanism does not adopt frequency-conversion alternating current motor, and its structure is complicated, and cost is higher, and it is steady inadequately to work, and height can not accuracy control.
The utility model content
The utility model mainly is to solve the existing in prior technology problem, has simple in structurely thereby provide a kind of, operate steadily, but the elevator of height accuracy control.
The above-mentioned technical matters of the utility model mainly is able to solve through following technical proposals:
A kind of elevator with AC motor control; Said elevator comprises upper table surface, following table, interior jib, boom, raising middle flask, draws case, controller, frequency converter, alternating current dynamo; Described controller is connected with frequency converter; Described frequency converter is connected with alternating current dynamo, described alternating current dynamo be frequency-conversion alternating current motor, the output frequency of described controller control frequency converter; The operation of described Frequency Converter Control alternating current dynamo, thereby the rising or falling speed of control upper table surface and the height of upper table surface.
More excellent is; The frequency conversion scope of said alternating current dynamo is 20-60Hz; The frequency of operation of alternating current dynamo is 40Hz during the elevator normal operation, and it is 1-2 minute that the top platform of elevator rises to the extreme higher position required time from extreme lower position, after arrival extreme higher position and the extreme lower position; Can set automatic wait time by controller, can adjust alternating current dynamo according to the rising or falling speed needs and in the 20-60Hz scope, move.
More excellent is, described controller is provided with annunciator, and when controller detected alternating current dynamo fault is arranged, annunciator can sounding, luminous warning, made the user can locate the elevator that breaks down, on-call maintenance apace.
Therefore, the advantage of the elevator of the utility model is simple in structure, operate steadily, but the height accuracy control.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of elevator of the band AC motor control of the utility model.
Fig. 2 is the block scheme of the controller control frequency-conversion alternating current motor of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
It is a kind of simple in structure that the utility model provides, reliable in quality, and long service life can prevent that foreign material from getting into the structural representation that the elevator in-to-in has dust boot.
Like Fig. 1, shown in Figure 2, a kind of elevator with AC motor control, said elevator comprises upper table surface 1, following table 2, controller 4, frequency converter, alternating current dynamo 3; This controller 4 is captiveed joint with following table 2, and this controller 4 is provided with annunciator 41, and this controller 4 is connected with frequency converter; This frequency converter also can be arranged on the inside of controller 4, and this frequency converter is connected with alternating current dynamo 3, and this alternating current dynamo 3 is a frequency-conversion alternating current motor; The output frequency of these controller 4 control frequency converters; The operation of frequency converter 4 control alternating current dynamos 3, thereby the rising or falling speed of control upper table surface 1 and the height of upper table surface 1, the frequency conversion scope of said alternating current dynamo is 20-60Hz; The frequency of operation of alternating current dynamo is 40Hz during normal operation; Can adjustment control 4 when the rising or falling speed of needs adjustment elevator, the output frequency that makes frequency converter is 20-60Hz, thereby regulates the operation of alternating current dynamo 3.
Claims (3)
1. elevator with AC motor control; Said elevator comprises upper table surface (1), following table (2), interior jib, boom, raising middle flask, draws case, alternating current dynamo (3); It is characterized in that: described elevator also comprises controller (4), frequency converter; Described controller (4) is connected with frequency converter, and described frequency converter is connected with alternating current dynamo (3), and described alternating current dynamo (3) is a frequency-conversion alternating current motor.
2. elevator according to claim 1 is characterized in that: the frequency conversion scope of said alternating current dynamo (3) is 20-60Hz.
3. elevator according to claim 2 is characterized in that: described controller (4) is provided with annunciator (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202520765U CN202186866U (en) | 2011-07-18 | 2011-07-18 | Lifter with AC (alternating current) motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202520765U CN202186866U (en) | 2011-07-18 | 2011-07-18 | Lifter with AC (alternating current) motor controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202186866U true CN202186866U (en) | 2012-04-11 |
Family
ID=45918329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202520765U Expired - Fee Related CN202186866U (en) | 2011-07-18 | 2011-07-18 | Lifter with AC (alternating current) motor controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202186866U (en) |
-
2011
- 2011-07-18 CN CN2011202520765U patent/CN202186866U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20130718 |