CN105347276A - Electric cable trench cover plate lifting and placing device - Google Patents

Abstract

The invention discloses a lifting device for a cable trench cover plate for electric power, which belongs to a cover plate lifting tool, and its structure includes a horizontal base with a pair of slide grooves, and a sliding block slides through the horizontal base through the sliding fit. , a screw is installed in the horizontal base, one end of the screw extends to the outside of the horizontal base, and the first sprocket is installed on it; a column extends upward on the horizontal base, and pulleys are arranged at the top and middle of the column; the middle of the column is installed Revolving shaft bearing, a revolving shaft is arranged inside the revolving shaft bearing, a rope wheel and a second sprocket are respectively arranged on the revolving shaft, the revolving shaft is connected with the motor shaft of the driving motor through a coupling, and the second sprocket is connected with the first sprocket through a chain , there is a rope groove in the rope wheel; the steel wire rope goes around the two pulleys on the column, one end is fixed on the rope wheel, and the other end is fixed on the first hanging point on the cover plate. The invention has the characteristics of replacing manual operation with mechanical equipment, reducing the labor intensity of workers, improving work efficiency and the like.

Description

Lifting device for cable trench cover plate for electric power

technical field

The invention relates to a tool for lifting and releasing a cover plate, in particular to a device for lifting and releasing a cover plate of a cable trench for electric power.

Background technique

At present, the outdoor cable trench covers of substations mostly adopt the protruding layout, as shown in Figure 1, that is, the length of the trench cover is greater than the length of the cable trench, and both sides of the trench are protruding by a certain length than the cable trench. The reason why the cover adopts this The protruding type is sufficient because the top of the outdoor cable trench is 100-150mm higher than the outdoor ground to prevent rainwater from pouring in. At the same time, in order to facilitate the opening of the cover plate, each side of the cover plate extends out of the cable trench.

During the maintenance process, the cover plate needs to be opened. At present, the way to open the cable trench cover plate is manual. Two people need to lift it together to lift the cover plate, which requires a lot of labor.

Cranes can also be used for hoisting, but the open space outside the substation is limited, and the substation itself is a dangerous place, and general vehicles are not allowed to enter the work.

Therefore, it is necessary to provide a new type of tool.

Contents of the invention

The technical task of the present invention is to provide a cable trench cover lifting device for electric power in view of the deficiencies in the prior art above. Strength, features that improve work efficiency.

The technical solution adopted by the present invention to solve its technical problems is: it includes

A horizontal base, the horizontal base is a rectangular cast steel base as a whole, there are a pair of slide grooves in the horizontal base, and a sliding block slides between the linear slide groove and the horizontal base, wherein the horizontal base The length of the base is equivalent to the width of the cover;

A lead screw is installed in the horizontal base, the two ends of the lead screw are installed in the horizontal base through bearings, and one end of the lead screw extends to the outside of the horizontal base, and a first sprocket is installed on it, so The slider is provided with a wire sleeve matched with the lead screw;

A reinforcing block is extended to both sides on the horizontal base far away from the end of the first sprocket;

A column is extended upwards on a horizontal base close to one end of the first sprocket, pulleys are provided at the top and middle of the column, the diameter of the pulley is greater than the width of the column, and a handle is provided at the top of the column;

A rotating shaft bearing is installed in the middle of the column, and a rotating shaft is arranged in the rotating shaft bearing. One end of the rotating shaft extends out of the column, and a sheave and a second sprocket are respectively arranged on the rotating shaft extending out of the column. The rotating shaft passes through the coupling and the motor of the driving motor. The shafts are connected, the second sprocket is set opposite to the first sprocket and has the same size, the second sprocket and the first sprocket are connected by a chain, and there is a rope groove for accommodating the wire rope in the sheave;

The wire rope goes around the two pulleys on the column, one end is fixed on the rope pulley, and the other end is fixed on the first hanging point on the cover plate, the first hanging point is set on the far end of the cover plate,

The diameter of the sheave is larger than the diameter of the second sprocket.

The upper part of the shown slide block is provided with a stopper, and a transversely arranged draw-in slot is arranged in the stopper, and the draw-in slot is composed of a horizontal plane, a vertical plane and an inclined plane.

A hanging ear is arranged on the slider, a second hanging point is arranged on the cover plate, and a lock is used to lock between the hanging ear and the second hanging point.

The welded connection between the horizontal base and the column.

Vertically set between the horizontal base and the column.

The horizontal base is hingedly connected with the column.

Compared with the prior art, the electric cable trench cover lifting device of the present invention has the following outstanding beneficial effects: the device has a simple structure, uses a wire rope and a screw mechanism for transmission, is compact, and can be easily transported without manual handling. Handling and operation, easy to use.

In the process of use, the cover plate is lifted in a tilted state, which is safe and reliable, and can meet the needs of maintenance operations.

Description of drawings

Fig. 1 is the use status chart of the present invention.

Figure 2 is a full sectional view.

Figure 3 is a schematic diagram of the hoisting process.

Fig. 4 is a perspective view of the present invention.

Fig. 5 is a perspective view of the slider.

In the figure: 1 horizontal base, 11 frame, 12 reinforcement block, 2 slider, 21 hanging lug, 22 block, 23 card slot, 3 lead screw, 31 first sprocket wheel, 32 second sprocket wheel, 33 chain, 4 Column, 41 pulleys, 42 handles, 43 rotating shafts, 44 rope wheels, 45 rotating shaft bearings, 46 shaft couplings, 47 drive motors, 5 steel wire ropes, 6 cover plates, 61 first hanging points, 62 second hanging points.

detailed description

Referring to the accompanying drawings, the electric cable trench cover lifting device of the present invention will be described in detail below.

The basic principle of the electric cable trench cover lifting device of the present invention is that the cover plate is moved in the horizontal direction by using the principle of steel wire rope and lead screw, and combined with the trench edges on both sides of the cable trench for support, the opening and closing is completed. close.

Its structure includes a horizontal base 1, which adopts a cast steel base, which has a rectangular frame 11, which consists of four sides, namely the sides on both sides and the ends at both ends, wherein the height of the horizontal base 1 is the same as that of the cover plate 6 and the clearance between the ground is comparable. A slide block 2 is installed in the frame, and the sliding block 2 is matched with the horizontal base 1. Specifically, symmetrical chute slots are arranged on both inner sides of the frame, and are matched by linear chute slots. The above-mentioned frame 11 The length and the width of cover plate 6 are suitable.

The upper part of the slider 2 is provided with a stopper 22, and a hanging lug 21 is arranged above the stopper 22, wherein a horizontally arranged card slot 23 is arranged in the stopper 22, and the card slot 23 is composed of a horizontal plane, a vertical plane and an inclined plane. , wherein the inclined surface is located at the upper part to block and limit the cover plate 6, and the inclined surface is to make the cover plate have adjustment space in the inclined state, as shown in FIG. 5 .

A leading screw 3 is installed in the frame 11, the two ends of the leading screw 3 are installed in the horizontal base 1 through bearings, and one end of the leading screw 3 extends to the outside of the horizontal base, and a first sprocket wheel is installed thereon 31. Simultaneously, above-mentioned slide block 2 is provided with a thread sleeve, leading screw 3 passes through the thread sleeve, and lead screw 3 rotates, and slide block 2 can slide forward and backward along lead screw 3 in frame 11, and realizes moving forward and backward.

On the horizontal base 1 at the end away from the first sprocket 31 , a reinforcing block 12 extends to both sides for support.

On the horizontal base 1 close to the end of the first sprocket 31, a column 4 is extended upwards, the top and middle of the column 4 are provided with a pulley 41, the diameter of the pulley 41 is greater than the width of the column 4, and the top of the column 4 is provided with handle 42;

A rotating shaft bearing 45 is installed in the middle part of column 4, is provided with rotating shaft 43 in the rotating shaft bearing 45, and one end of rotating shaft 43 stretches out column 4, stretches out on the rotating shaft 43 of column 4 and is respectively provided with a sheave 44 and the second sprocket wheel 32, The rotating shaft 43 is connected to the motor shaft of the drive motor 47 through a shaft coupling 46. The second sprocket 32 is set opposite to the first sprocket 31 and has the same size. The second sprocket 32 and the first sprocket 31 pass through Chain 33 links to each other, has the rope groove that accommodates wire rope 5 in the described sheave 44, and the column 4 middle part of drive motor 47 bottoms is provided with a support plate, and drive motor 47 is arranged to be fixed with column by support plate;

The wire rope 5 goes around the two pulleys 41 on the column 4, one end is fixed on the sheave 44, and the other end is fixed on the first hanging point 61 on the cover plate 6, the first hanging point is arranged on the far end of the cover plate 6 ,

The diameter of the sheave 44 is larger than that of the second sprocket 32 , so that the first hanging point 61 has a lifting action during the hoisting process of the cover plate 6 , as shown in FIG. 3 .

Further, in order to ensure the safety of hoisting, a second hanging point 62 is provided on the cover plate, the second hanging point 62 is located at the proximal end of the cover plate 6, and a hanging lug 21 is provided on the slider 2, The cover plate 6 leans against the slider 2 and is locked between the hanging lug 21 and the second hanging point 62 with a lock to realize the connection, so that the two ends of the cover plate are respectively connected with the wire rope and the slider.

During use, start drive motor 41, the motor shaft of drive motor 41 drives rotating shaft 43 rotations by coupling 46, and rope wheel 44 on the rotating shaft 43 and second sprocket wheel 32 rotate simultaneously, and second sprocket wheel 32 drives the first sprocket wheel 32 by chain 33 A sprocket 31 rotates, the first sprocket 31 is fixed on the lead screw 3, so that the lead screw 3 rotates together, the slider 2 moves axially along the lead screw 3, and the sheave 44 rotates at the same time to make the wire rope 5 have a rope-retracting action , the speed of the wire rope 5 is greater than the speed of the slider 2, so that the cover plate 6 has an action of gradually opening upwards, and at the same time realizes the horizontal movement. .

The implementation methods listed above are only for understanding the present invention, and are not intended to limit the technical solutions described in the present invention. Those of ordinary skill in the relevant fields can also make various changes on the basis of the technical solutions described in the claims. or deformation, all equivalent changes or deformations shall fall within the protection scope of the claims of the present invention. The parts of the present invention that are not described in detail are known technologies of those skilled in the art.

Claims (6)

1. The device for lifting and releasing the cable trench cover plate for electric power is characterized by: including A horizontal base, the horizontal base is a rectangular cast steel base as a whole, there are a pair of slide grooves in the horizontal base, and a sliding block slides between the linear slide groove and the horizontal base, wherein the horizontal base The length of the base is equivalent to the width of the cover; A lead screw is installed in the horizontal base, the two ends of the lead screw are installed in the horizontal base through bearings, and one end of the lead screw extends to the outside of the horizontal base, and a first sprocket is installed on it, so The slider is provided with a wire sleeve matched with the lead screw; A reinforcing block is extended to both sides on the horizontal base far away from the end of the first sprocket; A column is extended upwards on the horizontal base close to one end of the first sprocket, pulleys are provided at the top and middle of the column, the diameter of the pulley is greater than the width of the column, and a handle is provided at the top of the column; A rotating shaft bearing is installed in the middle of the column, and a rotating shaft is arranged in the rotating shaft bearing. One end of the rotating shaft extends out of the column, and a sheave and a second sprocket are respectively arranged on the rotating shaft extending out of the column. The rotating shaft passes through the coupling and the motor of the driving motor. The shafts are connected, the second sprocket is set opposite to the first sprocket and has the same size, the second sprocket and the first sprocket are connected by a chain, and there is a rope groove for accommodating the wire rope in the sheave; The wire rope goes around the two pulleys on the column, one end is fixed on the rope pulley, and the other end is fixed on the first hanging point on the cover plate, the first hanging point is set on the far end of the cover plate, The diameter of the sheave is larger than the diameter of the second sprocket. 2. The opening and closing device of the cable trench cover according to claim 1, characterized in that: the upper part of the slider is provided with a stopper, and a laterally arranged card slot is arranged in the stopper, and the card slot is made of Composed of horizontal, vertical and inclined planes. 3. The cable trench cover opening and closing device according to claim 1 or 2, characterized in that: a hanging lug is set on the slider, a second hanging point is set on the cover plate, and the hanging lug and the second hanging point Use a lock between the two hanging points to lock. 4. The opening and closing device for cable trench cover according to claim 1, characterized in that: the horizontal base and the column are connected by welding. 5. The opening and closing device for cable trench cover according to claim 4, characterized in that: the horizontal base and the column are vertically arranged. 6. The opening and closing device of the cable trench cover according to claim 1, characterized in that: the horizontal base and the column are hingedly connected.