CN204760875U - A pulley hoisting accessory for it is fixed with insulator chain - Google Patents

Abstract

The utility model relates to a pulley hoisting accessory for it is fixed with insulator chain, it includes that both ends are provided with the gallows crossbeam of pulley, two main tributaries of setting on the gallows crossbeam prop, set up main snap ring, setting that the main tributary propped the tip are in bearing diagonal and setting that the main tributary propped are in the oblique snap ring of bearing diagonal tip, upper end that the main tributary propped with gallows crossbeam hinge. The utility model discloses owing to set up bearing diagonal and oblique snap ring, when using, can make stable the fixing on insulator chain of whole gallows, the effectual gallows of placing inclines to warp, the operation of being convenient for, the security height can improve work efficiency.

Description

A pulley lifting device for fixing with insulator string

technical field

The utility model relates to a pulley lifting device for fixing with insulator strings.

Background technique

At present, most of the strain towers use porcelain insulators. When the porcelain insulators are damaged or have zero value, they must be replaced. The transfer block is fixed, and the ground coordinators transfer the single-piece porcelain insulator to the lower edge of the porcelain insulator tension string with the transfer rope. The operator lies on the insulator string and lifts the single-piece porcelain insulator to the porcelain insulator by hand. above the string. This method is time-consuming and labor-intensive, and it is easy to cause high-altitude objects to fall. pose a great safety hazard. Taking all porcelain insulators with a voltage level of ±660kV as an example, the disc diameter is relatively large, and the weight of a single piece of insulator is about 30 kg. It is impossible for a single person to lift it to the string.

Existing hangers, such as the hanger disclosed in the patent No. 2012101977005, require temporary installation of pulleys during operation, which is cumbersome and inconvenient to use. The pulleys can only be installed on the inner sides of the two fixed rods, and the insulators will be lifted. Affects the operation, and its fixed snap ring is inconvenient to operate, and there are only two left and right fixed snap rings. During use, due to the heavy weight of the insulator, the entire hanger will be tilted and the fixed snap ring will be damaged.

Utility model content

The technical problem to be solved by the utility model is to provide a hanger for replacing porcelain insulators of tension towers with stable structure and convenient use.

For solving the problems referred to above, the technical scheme that the utility model takes is:

A pulley lifting device for fixing with insulator strings, its key technology is that it includes a hanger beam with pulleys at both ends, two main supports arranged on the hanger beam, and two main supports arranged at the end of the main support. The main snap ring, the oblique support arranged on the main support and the oblique snap ring arranged at the end of the oblique support, the upper end of the main support is hinged with the hanger beam; the two main supports Diagonal braces are on the same side;

The main snap ring includes two semicircular snap rings, the fixed main snap ring and the movable main snap ring. The upper end of the fixed main snap ring is fixedly connected with the main support, and the lower end is hinged with the movable main snap ring through a hinge. The upper end of the movable main snap ring is fixedly provided with a connecting head, and the bottom of the main support is provided with a concave part matching the shape of the connecting head, and the connecting head and the concave part are connected to form a cylindrical cylinder with an external thread body, the main support is sleeved with a locking nut adapted to the cylinder;

The length of the oblique support is adjustable, its upper end is hinged with the main support, and its lower end is provided with an oblique snap ring. The oblique snap ring includes two semicircular snap rings: The middle part of the fixed inclination snap ring is hinged with the end of the oblique support, one end of the fixed inclination snap ring is hinged with one end of the movable inclination snap ring through a hinge, and the other end is connected with the other end of the movable inclination snap ring through a connecting bolt .

As a further improvement of the utility model, the oblique support includes an upper screw rod, a lower screw rod and a second turnbuckle nut connecting the upper screw rod and the lower screw rod, the upper screw rod is hinged with the main support, and the lower screw rod is connected with the fixed screw rod. Slanted snap ring hinged.

As a further improvement of the utility model, it also includes a length-adjustable connection mechanism arranged between the two main snap rings, the connection mechanism includes a left screw rod, a right screw rod and a first turnbuckle nut connecting the left screw rod and the right screw rod , the ends of the left screw rod and the right screw rod are respectively hinged with the corresponding fixed main snap rings.

As a further improvement of the utility model, the main snap ring and the oblique snap ring are provided with anti-slip layers.

The beneficial effects produced by adopting the above-mentioned technical scheme are:

Because the utility model is provided with oblique supports and oblique snap rings, when in use, the entire hanger can be stably fixed on the insulator string, and the hanger can be effectively placed to be tilted and deformed, which is easy to operate, has high safety, and can improve work efficiency.

The pulleys are set at both ends of the beam of the hanger, free from the influence of the support bar (namely the main support and the oblique support), which is convenient for operation. There is no need to temporarily install pulleys, saving procedures.

The main snap ring structure in this device is easy to handle because its fixing point is located directly above.

Description of drawings

Fig. 1 is a front structural schematic view of the utility model.

Fig. 2 is a side view structural diagram of the utility model.

Fig. 3 is a structural schematic diagram of the main snap ring of the present invention.

Fig. 4 is a schematic diagram of the structure of the oblique snap ring of the present invention.

Among them: 1 hanger beam, 2 pulley, 3 main support, 3-1 depression, 4 main snap ring, 4-1 fixed main snap ring, 4-2 moving main snap ring, 4-3 connector, 5 locking Nut, 6 inclined snap ring, 6-1 fixed inclined snap ring, 6-2 movable inclined snap ring, 7 ear plate, 8-1 left screw, 8-2 right screw, 8-3 first basket nut, 9 hinge, 10 antiskid layer, 11 connecting bolts, 12-1 upper screw rod, 12-2 lower screw rod, 12-3 second turnbuckle nut.

Detailed ways

Below in conjunction with accompanying drawing 1-4 and specific embodiment utility model is described in further detail:

As shown in Figures 1 and 2, a pulley lifting device for fixing with insulator strings, it includes a hanger beam 1 with pulleys 2 at both ends, two main supports 3 arranged on the hanger beam 1, a set The main snap ring 4 at the end of the main support 3, the oblique support arranged on the main support 3 and the oblique snap ring 6 arranged at the end of the oblique support, the lower end surface of the hanger beam 1 is provided with ears Plate 7 and ear plate 7 are positioned at the inner side of pulley 2, and the upper end of main support 3 is hinged with ear plate 7. In this way, the distance between the two main snap rings 4 can be adjusted to be suitable for different working conditions. The oblique supports on the two main supports 3 are located on the same side.

As shown in Figure 3, the main snap ring 4 includes two semicircular snap rings, the fixed main snap ring 4-1 and the movable main snap ring 4-2, and the upper end of the fixed main snap ring 4-1 is connected to the main support. 3 is fixedly connected, the lower end is hinged with the moving main snap ring 4-2 through a hinge 9, the upper end of the moving main snap ring 4-2 is fixedly provided with a connector 4-3, and the bottom of the main support 3 is provided with a The shape of the connecting head 4-3 matches the recessed part 3-1, the connecting head 4-3 and the recessed part 3-1 are connected to form a cylinder with external threads, and the main support 3 is nested There is a lock nut 5 adapted to the cylinder; the connector 4-3 can be a half cylinder. The above-mentioned structure is convenient to clamp, simple to operate, and has good strength and stability.

As shown in Fig. 2 and Fig. 4, the length of the oblique support is adjustable, its upper end is hinged with the main support 3 through the ear plate 7 fixedly arranged on the main support 3, and the lower end is provided with an oblique snap ring 6, so The inclined snap ring 6 includes two semicircular snap rings, the fixed inclined snap ring 6-1 and the movable inclined snap ring 6-2. , One end of the fixed inclination snap ring 6-1 is hinged with one end of the movable inclination snap ring 6-2 through the hinge 9, and the other end is connected with the other end of the dynamic inclination snap ring 6-2 through the connecting bolt 11.

The oblique support includes an upper screw 12-1, a lower screw 12-2, and a second turnbuckle nut 12-3 connecting the upper screw 12-1 and the lower screw 12-2, and the upper screw 12-1 is connected to the main screw 12-1. The support 3 is hinged, and the lower screw rod 12-2 is hinged with the fixed inclination snap ring 6-1. Through the action of the second turnbuckle nut 12-3, the length of the oblique support can be quickly adjusted.

As shown in Figure 1, the device also includes a length-adjustable connection mechanism arranged between the two main snap rings 4, the connection mechanism includes a left screw rod 8-1, a right screw rod 8-2 and a connection mechanism connecting the left screw rod 8. -1 and the first turnbuckle nut 8-3 of the right screw rod 8-2, the ends of the left screw rod 8-1 and the right screw rod 8-2 are respectively hinged with the corresponding fixed main snap ring 6-1, the described The middle part of the fixed main snap ring 6-1 is provided with an ear plate 7, and the ear plate 7 is vertically arranged, and the left screw rod 8-1 and the right screw rod 8-2 are hinged with the corresponding fixed main snap ring 4-1 through the corresponding ear plate 7. even. The connection structure can enhance the mechanical strength of the hanger, and can be adjusted accordingly with the adjustment of the two main supports 3 .

Both the main snap ring 4 and the oblique snap ring 6 are provided with an anti-skid layer 10 . The main snap ring 4 is fixedly sleeved on the ball head of the insulator, or between the two sheds of the insulator, and the oblique snap ring 6 is fixed on the ball end adjacent to the main snap ring 4, or between the two sheds of the insulator .

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention .

Claims (3)

1. A pulley lifting device for fixing with insulator strings, characterized in that it includes a hanger beam (1) with pulleys (2) at both ends, and two main hanger beams (1) arranged on the hanger beam (1). The support (3), the main snap ring (4) arranged at the end of the main support (3), the oblique support arranged on the main support (3), and the oblique snap ring arranged at the end of the oblique support (6), the upper end of the main support (3) is hinged to the hanger beam (1); the oblique supports on the two main supports (3) are located on the same side; The main snap ring (4) includes two semicircular snap rings, the fixed main snap ring (4-1) and the movable main snap ring (4-2). The upper end of the fixed main snap ring (4-1) is connected to The main support (3) is fixedly connected, and the lower end is hinged with the moving main snap ring (4-2) through a hinge (9), and the upper end of the moving main snap ring (4-2) is fixedly provided with a connector (4- 3), the bottom of the main support (3) is provided with a concave part (3-1) matching the shape of the connecting head (4-3), the connecting head (4-3) and the concave part ( 3-1) Connecting to form a cylinder with external threads, the main support (3) is sleeved with a lock nut (5) adapted to the cylinder; The length of the oblique support is adjustable, its upper end is hinged with the main support (3), and the lower end is provided with an oblique snap ring (6), and the oblique snap ring (6) includes a fixed inclination snap ring (6-1) and two semicircular snap rings of the movable and inclined snap ring (6-2). ) through a hinge (9) and one end of the tilting snap ring (6-2), and the other end is connected to the other end of the tilting snap ring (6-2) through a connecting bolt (11). 2. A pulley lifting device for fixing with insulator strings according to claim 1, characterized in that: said oblique support includes an upper screw (12-1), a lower screw (12-2) and connecting The second turnbuckle nut (12-3) of the upper screw (12-1) and the lower screw (12-2), the upper screw (12-1) is hinged with the main support (3), and the lower screw ( 12-2) is hinged with the inclination snap ring (6-1). 3. A pulley lifting device for fixing with insulator strings according to claim 1 or 2, characterized in that it also includes a length-adjustable connection mechanism arranged between the two main snap rings (4), so that The connecting mechanism includes a left screw rod (8-1), a right screw rod (8-2) and a first turnbuckle nut (8-3) connecting the left screw rod (8-1) and the right screw rod (8-2). The ends of the above-mentioned left screw rod (8-1) and right screw rod (8-2) are respectively hinged with the corresponding fixed main snap ring (4-1).