CN2264967Y

CN2264967Y - Isolating switch

Info

Publication number: CN2264967Y
Application number: CN 96231568
Authority: CN
Inventors: 顾渊; 皮松斌; 郭政; 张如瑶
Original assignee: FUSE FACTORY OF NANJING ELECTROCERAMICS GENERAL FACTORY
Current assignee: FUSE FACTORY OF NANJING ELECTROCERAMICS GENERAL FACTORY
Priority date: 1996-04-03
Filing date: 1996-04-03
Publication date: 1997-10-15
Anticipated expiration: 2006-04-03

Abstract

The utility model relates to a light work torque isolating switch, which is suitable for the power equipment on the lineal high-voltage wire rod of the railway. The utility model is mainly composed of a conductive part, a post insulator, a base frame and a rotary seat. The upper end and the upper end of a bearing of the rotary seat are respectively provided with a rolling bearing; a sealing ring is also arranged out of the rolling bearing; a spacer ring is positioned on the lower part of the sealing ring; the lower part of the spacer ring is also provided with a cylindrical pin which passes through a through hole on the rotary shaft to support the spacer ring, the rolling bearing and the whole bearing part on the cylindrical pin; the isolation switch of the rotary seat has flexible rotation, can generate the stagnant rotation problem or blocking problem after long-term use, and can ensure the safe operation of the railway.

Description

Light work moment isolating switch

The utility model is that a kind of railway automatic block signal power circuit that is used for is done to divide, close the equipment of the usefulness of circuit, belongs to the railway power apparatus technology.

Isolating switch for railway electric power supply line is a kind of power equipment that is installed on the railway high-voltage wire along the line, in order to operate this switch, be equipped with manually or electric operating mechanism in this isolating switch lower end, operate this operating mechanism, can make the post insulator on the isolating switch do the rotation of 90 degree, plug-in strip separates or closure thereby drive.Because this isolating switch is for a long time in outdoor operation, it is bigger that each rotatable parts is influenced by natural cold and hot, sleet, sand-lime, so corrosion and dust stratification are serious, and it is dull to cause isolating switch to rotate after the long-time running, even stuck, have a strong impact on the safe operation of railway.

Goal of the invention of the present utility model just provides a kind of anti-gray, corrosion protection, the light work moment isolating switch that the anti-rotation parts freeze and rotation friction is less and constant.

Light work moment isolating switch of the present utility model is on the basis of original isolating switch, comes through improving.This isolating switch is by current-carrying part 10, post insulator 11, underframe and rotation seat 12 parts are formed, wherein current-carrying part, post insulator, underframe are all the same with original isolating switch, and the rotation seat part is by finger plate 1, rotating shaft 2, bearing 3, underframe 4, rolling bearing 5, packing ring 7, straight pin 8 is formed, and the rolling type bearing is by copper bowl 5-1, bearing sleeve 5-2, copper pearl 5-3 forms, this bearing have two lay respectively at bearing on, following two ends, its copper bowl is fixed on the bearing, and bearing sleeve is fixed in the rotating shaft, the copper pearl is between copper bowl and bearing sleeve, middle part in the copper bowl is circular-arc, and two is a linearity, and contact-making surface one side of bearing sleeve and copper pearl is an inclined plane shape.In addition in order to prevent that dust from entering the rolling type bearing, be located at rolling type bearing top on bearing top and be located at the bearing bottom the rolling type bearing below be equipped with sealing ring 6, outside the rolling type bearing on bearing top, also be provided with rainproof circle 9.

Advantage of the present utility model is that therefore the moment of rotating is very little owing in the rotation seat part, be provided with two rolling type bearings between rotating shaft and bearing, the rolling type bearing of this particular design, and it is stressed reasonable to guarantee conscientiously between rotating shaft and the bearing.Outside the rolling type bearing, be provided with sealing ring in addition, can prevent entering of dust effectively, therefore under the situation of the long-term operation continuously of this isolating switch, also can guarantee to rotate freely between rotating shaft and the bearing.Outside the rolling type bearing on bearing top, be provided with rainproof circle, can prevent the infiltration of rainwater, so this light work moment isolating switch has long-term the use dull or stuck problem that also can not rotate, can guarantee the safe operation of railway effectively.

Fig. 1 is the overall structural representation of the utility model.

Fig. 2 is the structural representation of the utility model rotation seat part.

Embodiment of the present utility model is as follows: this isolating switch is owing to being to come in the reform of original isolating switch, therefore, its current-carrying part 10, post insulator 11, underframe 4 all adopts former structure of keeping apart the pass, rotation seat 12 parts comprise finger plate 1, rotating shaft 2, bearing 3, underframe 4, rolling type bearing 5, sealing ring 6, packing ring 7, straight pin 8, rainproof circle 9, rolling type bearing 5 is by copper bowl 5-1, bearing sleeve 5-2, copper pearl 5-3 forms, copper bowl 5-1 is fixed on the bearing 3, and the middle part of its inside is a circular arc, and two is a linear, the radius of its circular arc is greater than the radius of copper pearl 5-3, and the space length in the copper bowl 5-1 is greater than the diameter of copper pearl 5-3.Bearing sleeve 5-2 is that an annular is fixed in the rotating shaft 2, and the one side that the inner face of bearing sleeve 5-2 promptly contacts with the copper pearl is the inclined-plane, and promptly one side of combining with rotating shaft of bearing sleeve 5-2 is thicker, and the outside is thinner.The rolling type bearing has two, lay respectively at the top and bottom of bearing 3, upper port and lower port at rolling type bearing 5 are provided with a sealing ring 6 respectively, the sealing circle is made by rubber, below the sealing ring 6 of bearing 3 bottoms, also be provided with packing ring 7 in order to rotate freely, packing ring 7 adopts the multi-disc washer combinations to form, and has a straight pin 8 at packing ring 7, and the through hole that this straight pin passes in the rotating shaft is held the packing ring above it.According to the above, just can form light work moment isolating switch of the present utility model.

Claims

1, light work moment isolating switch, by current-carrying part, post insulator, underframe and rotation seat part are formed, it is characterized in that the rotation seat part is made up of finger plate (1), rotating shaft (2), bearing (3), underframe (4), rolling bearing (5), packing ring (7), straight pin (8), rolling type bearing (5) lays respectively at the upper/lower terminal of bearing (3), its copper bowl (5-1) is fixed on the bearing (3), bearing sleeve (5-2) is fixed in the rotating shaft (2), and copper pearl (5-3) is positioned between copper bowl (5-1) and the bearing sleeve (5-2).

2, light work moment isolating switch according to claim 1 is characterized in that the middle part in the copper bowl (5-1) in rolling type bearing (5) is circular-arc, and two is a linearity, and bearing sleeve (5-2) is an inclined plane shape with contact-making surface one side of copper pearl (5-3).

3, light work moment isolating switch according to claim 1 and 2, it is characterized in that being located at rolling type bearing (5) top on bearing (3) top and be located at bearing (3) bottom rolling type bearing (5) below be equipped with sealing ring (6).

4, light work moment isolating switch according to claim 3, the outside that it is characterized in that being located at the rolling type bearing (5) on bearing (3) top is provided with rainproof circle (9).