CN201714601U - Shaft sealing sleeve for wind power signal slip ring - Google Patents

Abstract

The utility model relates to a shaft sealing sleeve for a wind power signal slip ring, comprising a sealing body which is circular with a hole in the middle, wherein the sealing body is provided with an annular protrusion and a fixed hole; the sealing body is hermetically connected with a rotating shell for fixing a conductive shaft through screws; the sealing body and the annular protrusion are sleeved on the conductive shaft; and the inner side of the sealing body is hermetically connected with the outer surface of the conductive shaft. By installing the sealing sleeve, key components of the signal slip ring are hermetically protected, the shortcomings of pollutant leakage in the signal ring of the prior art, such as oil stain and dust are overcome, the signal slip ring can be ensured to work normally under the oil leakage cabin environment as well as under the dust and salt fog weather conditions without being polluted, therefore, the service life of the signal ring is prolonged, and the accuracy of signal transmission is guaranteed. The sealing sleeve has the advantages of convenient installation, obvious effect and lower cost.

Description

Wind-powered electricity generation signal slip ring shaft sealing cover

Technical field the utility model belongs to electronic information field, relates to a kind of seal arrangement of signal slip ring axle head, is specifically related to a kind of wind-powered electricity generation slip ring conductive shaft stuffing box gland that is used on the wind power equipment.

Background technique is present, and along with the continuous development of China's wind-power electricity generation cause, the wind power generating set production capacity constantly enlarges, and the localization rate of parts and components improves constantly, and has many key technologies to be still waiting further raising in the production domesticization process.Such as the easy contaminated problem of signal slip ring is exactly one of them.The signal slip ring is key, the vitals in the wind power generator set control system, in case the circuit of signal slip ring is contaminated or corrosion, just may make signal slip ring generation error code and transmit error signal, make control system send wrong instruction or action, thereby may damage even damage the whole generator set of having sent out blower fan.Yet because China's wind field is generally built in the comparatively abominable place of natural condition, western sand and dust, coastal salt fog all may pollute the inside of slip ring or corrode.In addition, the wind power generator group gear-box of prior art is to this problem ubiquity of signal slip ring leakage of oil, and leakage of oil is a ubiquity and outstanding especially technical problem to pollution and the harmful effect that the signal slip ring causes.

The easy contaminated main cause of summary of the invention signal slip ring is because the conductive shaft of signal slip ring with gapped between the shell of revolution that connects conductive shaft, forms pollution thereby cause pollutants such as sand and dust, salt fog, greasy dirt to enter from this gap to slip ring.The utility model provides a kind of wind-powered electricity generation signal slip ring shaft sealing cover in conjunction with these characteristics, this wind-powered electricity generation signal slip ring shaft sealing cover makes the slip ring conductive shaft with keeping airtight connection between the shell of revolution of signal slip ring conductive shaft, no longer include the gap, stoped pollutants such as sand and dust, salt fog, greasy dirt to enter, thereby avoided slip ring is formed pollution from this gap.Wind-powered electricity generation signal slip ring shaft sealing cover of the present utility model is achieved through the following technical solutions, and this wind-powered electricity generation signal slip ring shaft sealing cover comprises seal body, and the ring of perforate had annular protrusion and fixed hole in the middle of seal body was designed on seal body.Seal body is by screw and fixing airtight connection of rotary shell of conductive shaft, and seal body and annular protrusion are enclosed within on the conductive shaft, and seal body is inboard to be connected with the conductive shaft outer surface is airtight.Annular protrusion according to conductive shaft and fixedly the gap design between the rotary shell of conductive shaft be the toroidal of symmetrical openings.This wind-powered electricity generation signal slip ring shaft sealing cover makes the slip ring conductive shaft fixedly keep airtight connection together between the shell of revolution of conductive shaft; make signal slip ring key position be subjected to seal protection; no longer include the gap; sand and dust have been stoped; salt fog; pollutants such as greasy dirt enter from this gap; thereby avoided slip ring is formed pollution; make the signal slip ring can be at the cabin atmosphere of leakage of oil; at sand and dust; proper functioning under the weather conditions of salt fog; ensured the not contaminated working environment that cleaning is arranged of hoop; thereby prolonged the working life of hoop and ensured the accuracy that signal transmits; easy for installation when this device uses, effect is remarkable, and cost is lower.

Below in conjunction with accompanying drawing the utility model is described further.

Description of drawings Fig. 1 is a generalized section of the present utility model; Fig. 2 is the plan view of the utility model on Fig. 1 direction; Fig. 3 is a use assembling schematic representation of the present utility model; Fig. 4 is that the utility model is at the cut-away view that uses rigging position.1---seal body; 2---annular protrusion; 3---fixed hole; 4---the fixing rotary shell of conductive shaft; 5---conductive shaft; 6---signal slip ring shell; 7---signal slip ring end cap.

Embodiment such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, wind-powered electricity generation signal slip ring shaft sealing cover described in the utility model, it is a kind of special-shaped rubber sealing boot, comprise seal body 1, the ring of perforate had annular protrusion 2 and fixed hole 3 in the middle of seal body 1 was designed on seal body 1.Seal body 1 is by screw, fixed hole 3 and fixing 4 airtight connections of rotary shell of conductive shaft, the inboard shape of seal body 1 is corresponding with conductive shaft 5 external surface shape, seal body 1 and annular protrusion 2 are enclosed within on the conductive shaft 5, seal body 1 inboard and airtight connection of conductive shaft 5 outer surfaces.Annular protrusion 2 is according to fixedly the rotary shell 4 and the gap design between the conductive shaft 5 of conductive shaft are the toroidal of symmetrical openings.In this way to the seal protection of signal slip ring key position; end face of wind-powered electricity generation signal slip ring shaft sealing cover is combined closely with the fixing corresponding end face of the rotary shell 4 of conductive shaft; annular protrusion 2 is filled the rotary shell 4 of fixing conductive shaft and the gap of conductive shaft 5 formation; the internal diameter of wind-powered electricity generation signal slip ring shaft sealing cover is enclosed within on the conductive shaft 5; like this; by conductive shaft 5; wind-powered electricity generation signal slip ring shaft sealing cover; the fixing rotary shell 4 of conductive shaft; signal slip ring shell 6; signal slip ring end cap 7 has been formed an airtight space jointly; completely cut off of interference and the pollution of outside poor environment to inner working space; accurate conduction circuit and brush pin can be worked under the condition of cleaning; thereby it is reliable to have guaranteed that circuit contacts with the brush pin, and it is reliable and stable to have guaranteed that signal transmits.

Claims (3)

1. a wind-powered electricity generation signal slip ring shaft sealing cover comprises seal body (1), it is characterized in that seal body (1) is the ring of middle perforate, and annular protrusion (2) and fixed hole (3) are arranged on seal body (1).

2. wind-powered electricity generation signal slip ring shaft sealing cover as claimed in claim 1, it is characterized in that seal body (1) is by screw and fixing airtight connection of the rotary shell of conductive shaft (4), seal body (1) and annular protrusion (2) are enclosed within on the conductive shaft (5), seal body (1) inboard and conductive shaft (5) the airtight connection of outer surface.

3. wind-powered electricity generation signal slip ring shaft sealing cover as claimed in claim 1, it is characterized in that annular protrusion (2) according to the fixing rotary shell of conductive shaft (4) and fixedly the gap design between the conductive shaft (5) be the toroidal of symmetrical openings.

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