CN2262279Y

CN2262279Y - Pull plate type fastener for dry-type transformer

Info

Publication number: CN2262279Y
Application number: CN 95234977
Authority: CN
Inventors: 韩军; 庄明喜; 刘桂兰; 赵忠云; 田桂书; 张循理; 高留志
Original assignee: JINMANKE ELECTRICAL GROUP CO Ltd SHANDONG PROV
Current assignee: JINMANKE ELECTRICAL GROUP CO Ltd SHANDONG PROV
Priority date: 1995-11-06
Filing date: 1995-11-06
Publication date: 1997-09-10
Anticipated expiration: 2005-11-06

Abstract

The utility model provides a pull plate type fastener for dry-type transformers, which is composed of an iron core, draw plates, a high-pressure upper clamping plate, a high-pressure lower clamping plate, a hanging ring and a pin; the draw plates are fixed on both sides of the iron core by the high-pressure upper clamping plate and the high-pressure lower clamping plate; the lower end of each of the draw plates is fixed with the high-pressure lower clamping plate by screws; the upper end of each of the draw plates is fixed with the upper clamping plate by the hanging ring and the pin. Compared with the prior art, the utility model has the advantages of reasonable design, simple structure, easy installation, material saving, small size, low noise, etc.

Description

Dry-type transformer drawplate type fastener

The utility model relates to a kind of Tightening Power Transformer Core device, specifically a kind of dry-type transformer drawplate type iron core fastener.

Dry-type transformer cools off transformer core as coolant by air, so the dry-type transformer of prior art is compared with oil-filled transformer, though have that volume is little, long service life, be easy to maintaining, advantage such as free from environmental pollution, but bigger noise is arranged, its noise is mainly from the iron core of transformer and the fixing pull bar of high pressure clamping plate up and down, also do not have at present effective way solve dry-type transformer big noise problem.

The purpose of this utility model provides a kind of dry-type transformer drawplate type fastener that can effectively solve the dry-type transformer noise problem.

The purpose of this utility model realizes in the following manner, the pull bar that will be used to support high pressure train wheel bridge and high pressure lower plate is replaced with arm-tie, and the iron core of arm-tie and transformer is installed together, so promptly the iron core to transformer plays better fastening effect, again high pressure train wheel bridge and high pressure lower plate are played a supporting role, thereby removed noise source from pull bar and iron core, noise of transformer is greatly reduced, simultaneously, this pulling plate structure has guaranteed the equipotential of arm-tie and iron core, thereby reduced the earth point of transformer, and making the more compact structure of dry-type transformer, profile is more attractive in appearance.

Accompanying drawing 1 is the use structural representation of dry-type transformer drawplate type fastener.

Accompanying drawing 2 is for adding part, adding the syndeton schematic diagram of part down on the arm-tie of dry-type transformer drawplate type fastener and the high pressure.

Fastening to pulling plate of dry-type transformer formula of the present utility model with reference to Figure of description Device explains below doing.

Pulling plate of dry-type transformer formula fastener of the present utility model, its structure be by Iron core [1], arm-tie [2], high pressure train wheel bridge [3], high pressure lower plate [4], suspension ring And pin [6] composition, high pressure train wheel bridge [3], high pressure lower plate [4] are with arm-tie [2] Be fixed on the both sides of iron core [1]. The lower end of arm-tie [2] is by under bolt [7] and the high pressure Clamping plate [4] are fixed together, and the upper end of arm-tie [2] is fixing by suspension ring, pin [6] Top in high pressure train wheel bridge [3]. Suspension ring are by screw rod [5]] and annulus [8] form, Screw rod [5] is welded on the cylindrical of annulus [8], and open at the top of high pressure upper strengthening plate [3] One upright opening is arranged, and the side has a lateral aperture, this lateral aperture and arm-tie [2] end Lateral aperture and the centre bore of annulus [5] be positioned on the same center line, pin [6] is worn Level at centre bore, high pressure train wheel bridge [3] side and the arm-tie [2] of annulus [5] Among the hole.

Embodiment: installing and using of dry-type transformer drawplate type fastener of the present utility model is very simple and convenient, shown in the by specification accompanying drawing, arm-tie is installed in the both sides of iron core, with high pressure train wheel bridge and high pressure lower plate iron core is clamped from both sides, the lower end of arm-tie is fixed with bolt and high pressure lower plate, the screw rod of suspension ring is through in the upright opening at high pressure train wheel bridge top, pin is penetrated from the centre bore of suspension ring annulus, the lateral aperture that passes high pressure train wheel bridge side is through in the lateral aperture of arm-tie upper end again, screw rod is tightened in the top of high pressure train wheel bridge with nut, suspension ring pulling arm-tie is tightened with the emerging clamping of iron in the middle of two arm-ties it in the time of tightening nuts, transformer can reduce the vibration of iron core when operation like this, thereby can reduce the noise of dry-type transformer effectively.

Pulling plate of dry-type transformer formula fastener of the present utility model and prior art are mutually More reasonable in design than having, simple in structure, be easy to install, save material, volume little, The characteristics such as low noise have good value for applications.

Except the described technical characterictic of specification, be those skilled in the art Know technology.

Claims

1. dry-type transformer drawplate type fastener comprises iron core, arm-tie, high pressure train wheel bridge, high pressure lower plate, suspension ring and pin, it is characterized in that high pressure train wheel bridge, high pressure lower plate are fixed on arm-tie the both sides of iron core.

2. dry-type transformer drawplate type fastener according to claim 1 is characterized in that the lower end of arm-tie is fixed together by bolt and high pressure lower plate, and the upper end of arm-tie is fixed together by suspension ring, pin and train wheel bridge.

3. dry-type transformer drawplate type fastener according to claim 1, it is characterized in that suspension ring are made up of screw rod and annulus, screw rod is welded on the cylindrical of annulus, the top of high pressure train wheel bridge has a upright opening, the side has a lateral aperture, the lateral aperture of this lateral aperture and arm-tie end and the centre bore of annulus are positioned on the same center line, and pin is through among the lateral aperture of centre bore, high pressure train wheel bridge side and arm-tie of annulus.