CN85109336A - The building site generator set - Google Patents
The building site generator set Download PDFInfo
- Publication number
- CN85109336A CN85109336A CN85109336.1A CN85109336A CN85109336A CN 85109336 A CN85109336 A CN 85109336A CN 85109336 A CN85109336 A CN 85109336A CN 85109336 A CN85109336 A CN 85109336A
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- China
- Prior art keywords
- generator
- frequency variator
- frequency
- casing
- building site
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Abstract
Generator set comprises that an internal-combustion engine (5) drives three phase electric machine (6) running.This generator is installed in the top of casing (7).Also have a frequency variator (8) in the casing, power, and export 42 volts, 200 hertz electric current to latch (11) by generator (6).
Description
People knew already that the building site generator set was made up of the internal-combustion engine of the support of adorning generator and drive generator.Generator can provide single-phase and/or threephase AC, and its voltage is consistent with local circuit with frequency.
On the construction site, except the machine of three-phase or monophase current is provided by local circuit, also have some machines, as drill bit, concrete vibrator, pneumatic pick etc., must supply with special-purpose electricity, generally mostly be 42 volts, 200 hertz single-phase or three-phase electricity.In order to provide this class special-purpose electricity, some enterprises will be equipped with a cover generator set in addition, and this generator set comprises gasoline or the heavy oil motor that makes generator operation.
The present invention is intended to reduce equipment investment, simplifies using method, particularly during casting concrete, can be applicable to various facility in the work progress simultaneously, as drill bit, float, vibration chi, concrete mixer, lighting installation etc.
Given this, the present invention will solve top said building site generator set problem, unit also will have the termination and the switch that connect frequency variator input end and generator output end except frequency variator, inverter output terminal can provide the electric current higher than local mains frequency.
Accompanying drawing is the schematic representation of generator set installation form of the present invention.
Fig. 1 is the side view of this unit.
Fig. 2 is the side view of this unit.
Fig. 3 is the power circuit figure of this unit.
See figures.1.and.2, generator set is installed on the chassis 1, and the crank structure 4 of two wheels 2, a support 3 and a mobile framework of energy is arranged at the framework bottom.A gasoline motor 5 is arranged on the chassis, and motor and generator 6 are complementary, so that 380 volts, 50 hertz three phase circuit to be provided.Certainly, motor has comprised a speed regulator, makes generator 6 keep 50 hertz frequency in general allowed band.Regulating device is not prepared to describe in detail at this hereto, because its structure has been known to the prior art common people, does not belong to scope of the present invention.
As shown in Figure 2, for the frequency variator 8 that draws, switchboard 9 does not draw.With several resilient parts 20 frequency variator is suspended on the last shell wall 10 of casing 7.There is a baffle plate 11 below of frequency variator, is horizontally through casing 7, as thermal baffle, generates heat because of the heat that generator distributes to prevent frequency variator 8.Each side of casing 7 upper parts is the aeration- cooling air passageways 17 and 18 of frequency variator 8.The advantage of this transversal ventilation form is to reduce the backflow of hydro-generator ventilation cooling waste gas as far as possible.
Two supporting frames of casing 7 usefulness 12 are reinforced, and it is 42 volts, 200 hertz terminal box 13 that two electric currents are wherein arranged on one, and a switch 14 and thermal circuit beraker 15 that can be chain are arranged on another root.At the opposite side of casing 7, also have a sleeve pipe 19, a knob is arranged on the sleeve pipe, can tighten the bearing of searchlight fixing.
As shown in Figure 3, by switch 14, the input end of frequency variator 8 is connected with the three-phase electricity that generator 6 is provided.There is a thermal circuit beraker at switch 14 places.Inverter output terminal and terminal box 13 are joined.
In the three phase circuit one is input to 17 li of latches mutually, and the three-phase electricity that is provided by generator 6 then is input to 16 li of latches.
Required power is significantly less than the three phase electric machine power that drives when concrete mixer, float, vibration chi, lighting installation etc. turn round on the building site during concrete bit running.Therefore, the transducer power 10-35% of generator 6 power preferably.In general, during machine run, must be equipped with about 5 to 7 kilowatts power, and one or several concrete vibrator will be equipped with 1 to 3 kilowatt power on the building site.
It is big that the size of generator 6 is preferably wanted, so that the power about 6 to 10 kilowatts is provided, only in this way, just can powers to concrete mixer, searchlight, one or several concrete vibrator simultaneously, and not make the load of whole generating unit excessive.
This machine can have many different mounting types, the particularly installation question of frequency variator 8.If desired, frequency variator can be designed to provide the form of three-phase electricity.In addition, frequency variator 8 also can have several output terminals, so that export 200 hertz single-phase electricity and three-phase electricity.
Obviously, whole generating set can be installed on the framework of Sledge type simply, just can move on the construction site with a tractor. Can also load auxiliary equipment used on some other building site on the framework, such as water pump, perhaps also can load the required generator of electric welding.
Self-evident, can use one or several frequency converter, in order to obtain being higher than 200 hertz, such as 400 to 600 hertz frequency.
Claims (5)
1, the building site generator set comprises support that generator is housed and the internal-combustion engine that drives generator operation.Generator can be supplied with the single-phase and/or threephase AC consistent with local line voltage distribution and frequency.Generator also has termination and switch except a frequency variator is arranged, frequency variator input end and generator output end are joined, and the output terminal of frequency variator can provide the electric current that is higher than local mains frequency.
2, according to claim 1, it is characterized in that: be connected by a thermal circuit beraker between the generator in the generator set and the frequency variator.
3, according to claim 2, it is characterized in that: frequency variator is installed in the electric generator casing, be positioned at the below of generator, and casing has covered the part generator.
4, according to claim 3, it is characterized in that: a minimum casing will have the electric current latch, is connected with frequency variator with generator respectively.
5, according to claim 2,3 or 4, it is characterized in that: the power of frequency variator is 10 to 35% of generator power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109336 CN1012693B (en) | 1985-12-25 | 1985-12-25 | Generator set for construction site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85109336 CN1012693B (en) | 1985-12-25 | 1985-12-25 | Generator set for construction site |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85109336A true CN85109336A (en) | 1987-07-01 |
| CN1012693B CN1012693B (en) | 1991-05-29 |
Family
ID=4796306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85109336 Expired CN1012693B (en) | 1985-12-25 | 1985-12-25 | Generator set for construction site |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012693B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083930C (en) * | 1997-07-24 | 2002-05-01 | 本田技研工业株式会社 | Engine-operated generator |
-
1985
- 1985-12-25 CN CN 85109336 patent/CN1012693B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083930C (en) * | 1997-07-24 | 2002-05-01 | 本田技研工业株式会社 | Engine-operated generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1012693B (en) | 1991-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| C14 | Grant of patent or utility model | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |