CN203850723U - Integral unreeling pulley and cable unreeling pulley node - Google Patents

Abstract

Integrated pay-off pulley and cable pay-off pulley node, wherein the integrated pay-off pulley includes a support body and a pulley, and the support body includes a U-shaped card, a support plate, a connecting bolt assembly and a pulley shaft, on one side of the U-shaped card There are at least two pairs of support plates welded on the outside of the plate, and a set of tightening screws is provided on at least one side of the U-shaped card. In the space formed by each pair of support plates, there are connecting bolt assembly installation parts and arc-shaped threading lines from top to bottom. part and the pulley installation part, the two ends of the pulley shaft are fixed on the supporting plates on both sides of the pulley installation part, and sleeves and rolling bearings are sleeved on the pulley shaft, and the pulley is installed on the pulley shaft through the rolling bearing; there is a The section is a U-shaped annular groove. Easy to use, by fixing the pay-off pulley on the cross arm, and using a small wrench for all operations. The fixing performance of the fixed pay-off pulley is very good, which is convenient for the implementation of the pay-off process.

Description

Integrated pay-off pulley and cable pay-off pulley nodes

technical field

The utility model relates to a pay-off pulley applied to a 0.4KV line tower and a node for pay-off by using the pay-off pulley.

Background technique

In the transformation of low-voltage lines, the pulleys used in traditional setting-out are scattered, and each baseline pole needs four pulleys, and each one needs to be bound with iron wire to fix the cross arm. The use of steel wire binding has the problem of unreliable binding, and it is prone to loosening. What brings is that the cost is high, the assembly and disassembly is labor-intensive and time-consuming, and it is not convenient for standardized construction.

Utility model content

In order to solve the problems of large number of pulleys and labor-intensive assembly and disassembly when using the pay-off pulley to pay off the wire on the pole, the utility model provides an integrated pay-off pulley and a node of the cable pay-off pulley.

The technical scheme that the utility model solves its technical problem to take is:

An integrated pay-off pulley, including a support body and a pulley, is characterized in that,

The support body includes a U-shaped card, a support plate, a connecting bolt assembly and a pulley shaft, at least two pairs of support plates are welded on the outside of one side plate of the U-shaped card, and at least one side of the U-shaped card is provided with a A set of jacking screws, in the space formed by each pair of support plates, from top to bottom are the installation part of the connecting bolt assembly, the arc-shaped threading part and the installation part of the pulley. The connecting bolt assembly connects the two support plates and forms a whole. The two ends of the pulley shaft are fixed on the support plates on both sides of the pulley installation part, and a sleeve and a rolling bearing are sleeved on the pulley shaft, and the pulley is installed on the pulley shaft through the rolling bearing;

There is a U-shaped annular groove in the pulley, which has a guiding effect on the wire.

Further, the pulley is a nylon pulley.

Further, a second groove with a small diameter is provided at the bottom of the annular groove.

A cable pay-off pulley node, including a pole, a cross-arm and a pay-off pulley, an insulating column for fixing cables is arranged on the upper side of the cross-arm, and it is characterized in that,

The pay-off pulley is the above-mentioned integrated pay-off pulley, the U-shaped clip in the pay-off pulley is fixed on the cross arm between two insulating columns, and the whole pay-off pulley is located on the upper side of the cross arm, The cable to be set out passes through and rides on the annular groove of the pulley.

The beneficial effect of the utility model is that the structure is simple, and the whole structure only uses some fasteners such as steel plate weldments, nylon pulleys and bolts.

Easy to use, by fixing the pay-off pulley on the cross arm, and using a small wrench for all operations. The fixing performance of the fixed pay-off pulley is very good, which is convenient for the implementation of the pay-off process.

Description of drawings

Fig. 1 is a perspective view (front) of the utility model.

Fig. 2 is a perspective view (back side) of the utility model.

Fig. 3 is the front view of the utility model.

Figure 4 is a full sectional view of the utility model.

Figure 5 is a schematic diagram of the node of the cable pay-off pulley.

In the figure: 11 U-shaped card, 12 support plate, 13 connecting bolt assembly, 14 pulley shaft, 15 jacking screw, 16 sleeve and rolling bearing, 21 connecting bolt assembly installation part, 22 arc-shaped threading part, 23 pulley installation part, 3 pulleys, 31 annular grooves, 32 second grooves, 4 cables, 5 poles, 51 cross arms.

Detailed ways

As shown in Figures 1 to 4, the integrated pay-off pulley includes a support body and a pulley.

The supporting body includes a U-shaped card 11, a support plate 12, a connecting bolt assembly 13 and a pulley shaft 14. The U-shaped card 11 is welded with angle steel and steel bars to form a U-shaped structure in section. This U-shaped space can just be stuck on the cross-arm, and fastening screw 15 is fastened on the underside of U-shaped card 11, can realize that support member is fixed on the cross-arm by this screw. In order to improve the thread strength at the tightening screw, a nut is welded on the side of the corresponding U-line card.

Two pairs of support plates 12 are welded on the upper side of the U-shaped card 11. The structures of the two pairs of support plates are identical. The structure of one pair of support plates will be described in detail below. The support plates are stamped from steel plates. As a whole, in the space formed by each pair of support plates, there are connection bolt assembly installation parts 21, arc-shaped threading parts 22 and pulley installation parts 23 in sequence from top to bottom. Among them, the connection bolt assembly installation The space of the part 21 is small, and one or two sets of connecting bolt assemblies 13 are used at this part to connect the supporting plates on both sides and form a whole to form an upper supporting point. The two ends of the pulley shaft 14 are fixed on the support plates 12 on both sides of the pulley installation part, and a sleeve and a rolling bearing 16 are sleeved on the pulley shaft, and the pulley is installed on the pulley shaft by a rolling bearing, so that the pulley 3 Can rotate freely. Preferably, the rolling bearing uses a high-speed bearing. The threading part is an outwardly protruding part with a large space, which is convenient for threading work.

Above-mentioned, the preferred nylon pulley of pulley 3, has a section in the pulley and is the annular groove 31 of U shape, is provided with the second groove 32 of a small diameter at the groove bottom of described annular groove, wherein the second groove It is used for direct fitting of the cable 4 to form a cable slot.

As shown in Figure 5, the nodes that use the above-mentioned pay-off pulley to pay out include pole 5, cross arm 51 and pay-off pulley, and an insulating column for fixing cables is provided on the upper side of the cross-arm. After the completion of the pay-off, the cable 4 is fixed on the insulating column, and the installation method of the temporarily used pay-off pulley during the pay-out process is as follows:

The pay-off pulley is the above-mentioned integrated pay-off pulley. The U-shaped clip in the pay-off pulley is fixed on the cross arm 51 between two insulating columns, and the pay-off pulley is located on the upper side of the cross arm 51 as a whole. The cable passes through and is placed in the annular groove 31 of the pulley. After the cable 4 is tightened, loosen the connecting bolt assembly on the top of the support plate, and then the cable is fixed on the insulating column to complete the setting out and tightening work.

Except for the technical features described in the instructions, all are known technologies by those skilled in the art.

Claims (4)

1. integral type pulley block, comprises supporter and pulley, it is characterized in that,

Described supporter comprises U-shaped card, supporting bracket, connecting bolt assembly and pulley spindle, side plate outside at described U-shaped card is welded with at least two pairs of supporting brackets, be provided with one group at least one side of described U-shaped card and hold out against screw, in the space of every pair of supporting bracket composition, be followed successively by connecting bolt assembly installation portion from top to bottom, the threading portion of arc and pulley installation portion, described connecting bolt assembly connects two supporting brackets and forms one, described pulley spindle two ends are fixed in the supporting bracket of pulley installation portion both sides, and on described pulley spindle, be equipped with sleeve and rolling bearing, described pulley is arranged on described pulley spindle by rolling bearing,

In described pulley, there is the annular recess that a section is U-shaped.

2. integral type pulley block according to claim 1, is characterized in that, described pulley is nylon pulley.

3. integral type pulley block according to claim 1, is characterized in that, is provided with the second groove of a minor diameter at the bottom land of described annular recess.

4. a cable pulley block node, comprises electric pole, cross-arm and pulley block, is provided with the insulated column of attached cable at described cross-arm upside, it is characterized in that,

Described pulley block is the integral type pulley block described in any one in claims 1 to 3, U-shaped in described pulley block fastens on the cross-arm between insulated column between two, and described pulley block entirety is positioned at cross-arm upside, treat that the cable of unwrapping wire passes and takes in the annular recess that is placed on described pulley.