CN103401189A

CN103401189A - Cable pulley

Info

Publication number: CN103401189A
Application number: CN2013102833388A
Authority: CN
Inventors: 汪正初; 陈尔恋; 刘琼秋
Original assignee: Institute of Plasma Physics of CAS
Current assignee: Institute of Plasma Physics of CAS
Priority date: 2013-07-05
Filing date: 2013-07-05
Publication date: 2013-11-20
Anticipated expiration: 2033-07-05
Also published as: CN103401189B

Abstract

The invention discloses a cable pulley, which comprises a square inner frame, wherein one side of the inner frame is detachable; a pulley is sleeved on each of the four sides of the inner frame; an outer frame is also arranged outside the inner frame; each of four corners of the inner frame is connected with the corresponding corner of the outer frame through a connecting rod; a support leg is arranged at the tail end of each connecting rod; and slots are formed in two opposite sides of the outer frame, the two ends of the third side of the outer frame between the two opposite sides are inserted into the slots, and are locked through shafts, and the third side of the outer frame is on the same side with the detachable side of the inner frame. In a using process, a cable is always pressed against one of the pulleys whichever direction pulling force is defected in a horizontal direction, namely whether the pulley topples towards left or right, so that the normal work of the cable pulley can be ensured; and the utilization efficiency of the pulley is improved, and manpower is reduced.

Description

Cable sheave

Technical field

The invention belongs to power cable layer erecting tools field, be specifically related to a kind of cable sheave.

Background technology

In the power cable layer process, cable is not directly placed ground, but by pulley, to reduce the resistance of cabling.Conventional pulley, in the cable laying process, because tractive effort is offset in the horizontal direction, cause pulley to be translated into, and causes cable to land, and resistance increases; Need to manually go the pulley righting, when than long cable circuit, laying, this is also a very thing of effort.

Summary of the invention

The object of the invention is to design a kind of cable sheave, and in the cable laying process, no matter how tractive effort is offset in the horizontal direction, and cable can not leave pulley all the time, guarantees that pulley continues normal operation, has so just saved a large amount of manpowers.

The technical solution used in the present invention is:

a kind of cable sheave, it is characterized in that: include a square inner frame, one of them limit of inner frame is detachable, on four limits of inner frame, be respectively installed with a pulley, inner frame also is provided with an outside framework outward, inner frame, four turnings of outside framework are connected by a connecting rod respectively, the end of every connecting rod is provided with leg, wherein two opposite side of outside framework are provided with slot, the two ends on the 3rd limit between two opposite side of outside framework are inserted in described slot and by axle, lock fixing, the 3rd limit of described outside framework and the detachable lateral homonymy of inner frame.

Described a kind of cable sheave is characterized in that: hinged between an end of the detachable lateral of described inner frame and whole inner frame, and rotatable 90o.

Described a kind of cable sheave is characterized in that: but the 3rd limit of the detachable lateral of described inner frame, outside framework and two connecting rods being connected with both are connected as a single entity and integral-rotation 90o.

The invention has the beneficial effects as follows:

In use procedure, tractive effort is inclined to one side toward which in the horizontal direction, and namely pulley is swung to Left or right, and cable keeps off all the time on a pulley, thereby guarantees that cable sheave can work; The present invention has improved the service efficiency of pulley, has reduced manpower.

The accompanying drawing explanation

The present invention is further described below in conjunction with accompanying drawing.

Fig. 1 is main TV structure schematic diagram of the present invention.

Fig. 2 is side-looking structural representation of the present invention.

Fig. 3 is left TV structure schematic diagram of the present invention.

Embodiment

as Fig. 1, 2, 3, a kind of cable sheave, include a square inner frame 1, one of them limit 2 of inner frame 1 is detachable, on four limits of inner frame 1, be respectively installed with a pulley 3, outside inner frame 1, also be provided with an outside framework 4, inner frame 1, four turnings of outside framework 4 are connected by a connecting rod 5 respectively, the end of every connecting rod 5 is provided with leg 6, wherein two opposite side 7 of outside framework 4 are provided with slot 8, the two ends on the 3rd limit 9 between two opposite side 7 of outside framework 4 are inserted in described slot 8 and lock fixing by axle 10, the 3rd limit 9 of outside framework 4 and detachable lateral 2 homonymies of inner frame 1.

Hinged between one end of the detachable lateral 2 of inner frame 1 and whole inner frame 1, rotatable 90o.

But the 3rd limit 9 of the detachable lateral 2 of inner frame 1, outside framework 4 and two connecting rods 5 that are connected with both are connected as a single entity and integral-rotation 90o, can open top this part frame parts, cabling is put into to pulley inner frame 1, can realize the pulley normal operation.

Claims

1. cable sheave, it is characterized in that: include a square inner frame, one of them limit of inner frame is detachable, on four limits of inner frame, be respectively installed with a pulley, inner frame also is provided with an outside framework outward, inner frame, four turnings of outside framework are connected by a connecting rod respectively, the end of every connecting rod is provided with leg, wherein two opposite side of outside framework are provided with slot, the two ends on the 3rd limit between two opposite side of outside framework are inserted in described slot and by axle, lock fixing, the 3rd limit of described outside framework and the detachable lateral homonymy of inner frame.

2. a kind of cable sheave according to claim 1 is characterized in that: hinged between an end of the detachable lateral of described inner frame and whole inner frame, and rotatable 90o.

3. a kind of cable sheave according to claim 1 and 2 is characterized in that: but the 3rd limit of the detachable lateral of described inner frame, outside framework and two connecting rods being connected with both are connected as a single entity and integral-rotation 90o.