CN218523059U - Installation device for wedge type forged gate valve guide rib - Google Patents

Abstract

The utility model relates to an installation device of gate valve direction muscle is forged to wedge belongs to specialized tool. The device uses when the wedge forging gate valve welding direction muscle, its characterized in that: the installation device consists of a left clamping plate, a right clamping plate, a reverse screw rod, a guide rod, a bolt, a transverse plate and other parts, and a positioning groove, an adjusting groove and other parts. The screw thread turning directions at the two ends of the reverse screw rod are opposite, so that the distance between the left clamping plate and the right clamping plate can be conveniently adjusted. The transverse plate is fixed on the left and right clamping plates through bolts and clamped or loosened together with the left and right clamping plates. The left and right clamping plates are provided with adjusting grooves, and the distance between the transverse plates can be adjusted by screwing or loosening the bolts, so that the left and right clamping plates are suitable for guide ribs without length. The utility model discloses can realize accomplishing the finish machining of direction muscle earlier, then with the valve body welding, guarantee two direction muscle depth of parallelism and smooth finish, reduce the probability of valve clack bite in the switch process, promote wedge forging gate valve reliability.

Description

Installation device for wedge type forged gate valve guide rib

Technical Field

The utility model relates to an installation device of gate valve direction muscle is forged to wedge, when the gate valve body welds with the direction muscle, presss from both sides tight direction muscle, guarantees the parallelism of two direction muscle.

Background

At present, two guide ribs are welded in a middle cavity of a valve body of a wedge-type forged gate valve used in industries such as nuclear power, electric power, petrochemical industry and metallurgy, so that the valve clack is guaranteed to do vertical linear motion in the opening and closing process of the valve, and meanwhile, the valve clack is guaranteed not to fall off. Therefore, the two guide ribs need high parallelism and smoothness. In the industry, a guide rib blank is welded firstly, and then the guide rib is subjected to finish machining after the welding is finished, but because of the limitation of the depth of a valve body cavity, the parallelism and the smoothness of equipment are difficult to ensure in the machining process. If the fine machining of the guide ribs is finished and then welding is carried out, the smoothness of the guide ribs can be guaranteed, but a good assembling method is not provided for guaranteeing the parallelism of the two guide ribs. The valve flap is easy to block during the opening and closing process.

Disclosure of Invention

In order to overcome the not enough problem of current wedge forging gate valve direction muscle depth of parallelism and smooth finish, the utility model provides a wedge forges installation device of gate valve direction muscle can realize accomplishing the finish machining of direction muscle earlier, then welds. The problems of low parallelism and low smoothness after installation of the wedge-type forged gate valve guide rib used in industries such as nuclear power, electric power, petrifaction and metallurgy are solved.

The utility model adopts the technical scheme as follows: left splint (1), right splint (2), reverse screw rod (3), guide bar (4), bolt (5), parts such as diaphragm (6) and positions such as constant head tank (7), adjustment tank (8) constitute its characterized in that: the thread turning directions of the two ends of the reverse screw rod (3) are opposite, so that the distance between the left clamping plate (1) and the right clamping plate (2) can be conveniently adjusted; the guide rod (4) is fixed with the left clamping plate in a welding mode, is matched with a hole of the right clamping plate and is used for guiding and preventing rotation; the left and right clamping plates are connected with a transverse plate (6) through bolts (5), and the transverse plate (6) is provided with a positioning groove (7) which is matched with the left and right clamping plates in a positioning way to prevent the transverse plate (6) from rotating; the left and right clamping plates are provided with adjusting grooves (8), and the position of the transverse plate (6) can be adjusted up and down by screwing or loosening the bolts (5) for being suitable for guide ribs with different lengths.

The beneficial effects of the utility model are that: the problem that the parallelism and the smoothness of the guide rib of the forged gate valve are low is effectively solved, the probability of jamming of the valve clack in the opening and closing process of the valve is reduced, and the reliability of the wedge-type forged gate valve is improved; the clamping position of the transverse plate can be adjusted up and down through the adjusting groove, and the use of guide ribs with different lengths is met.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic view of the installation of a guide rib of a forged gate valve

In the figure: I. the valve body, II, the guide rib, III, the installation device, IV and the welding line.

FIG. 2 is an assembly view of the mounting apparatus for forged gate valve guide ribs

In the figure: 1. the device comprises a left clamping plate, a right clamping plate, a reverse screw rod, a guide rod, a bolt, a transverse plate and a bolt, wherein the left clamping plate is 2, the right clamping plate is 3, the reverse screw rod is 4, the guide rod is 5, and the transverse plate is 6.

FIG. 3 is a screw view

FIG. 4 is a schematic view of the left and right clamp plate adjustment slots

FIG. 5 is a schematic view of a cross plate positioning slot

Detailed Description

As shown in figure 3, reverse screw rod is formed by welding a special stud and a nut, the both ends of bolt respectively with the screw hole cooperation (as shown in figure 2) on the left and right splint, the screw thread in the both ends of bolt is turned to opposite, consequently with reverse screw rod and left and right splint installation back, during the hexagonal on the rotatory reverse screw rod, the threaded connection at both ends can loosen simultaneously or screw up, prevent through guide bar (4) that left and right splint rotate with reverse screw rod together, thereby realize the clamp of left and right splint tightly or loosen.

As shown in figure 2, according to actual requirements, a plurality of pairs of transverse plates can be arranged on the left clamping plate and the right clamping plate, and the transverse plates are fixed on the left clamping plate and the right clamping plate through bolts (5) and clamped or loosened together with the left clamping plate and the right clamping plate. When the left clamping plate and the right clamping plate are clamped, the two ends of the transverse plate simultaneously clamp the guide ribs on the two sides; when the left clamping plate and the right clamping plate are loosened, the guide ribs on the two sides are simultaneously loosened at the two ends of the transverse plate. The transverse plate is provided with positioning grooves (as shown in fig. 5) matched with the left clamping plate and the right clamping plate, so that the transverse plate is prevented from rotating and shifting. The left and right clamping plates are provided with adjusting grooves, and the distance between the transverse plates can be adjusted by screwing or loosening the bolts (5) to adapt to the guide ribs without length.

As shown in fig. 1, before the guide rib (II) is welded with the valve body (I), the two guide ribs are simultaneously clamped by using the mounting device (III); welding the guide rib and the valve body into segmented welding (IV), adjusting the number of the transverse plates according to actual conditions to enable the distance between the upper transverse plate and the lower transverse plate to meet the welding requirement of the drawing, putting the guide rib into the valve body, and performing segmented welding according to requirements; after the guide rib is welded, the left clamping plate and the right clamping plate can be loosened only by reversely rotating the reverse screw rod (3) by a wrench, and the mounting device (III) can be easily taken out.

Claims (1)

1. The utility model provides a wedge forging gate valve direction muscle's installation device mainly comprises left splint (1), right splint (2), reverse screw rod (3), guide bar (4), bolt (5), diaphragm (6) and constant head tank (7), adjustment tank (8), its characterized in that: the thread turning directions of the two ends of the reverse screw rod (3) are opposite, so that the distance between the left clamping plate (1) and the right clamping plate (2) can be conveniently adjusted; the guide rod (4) is fixed with the left clamping plate in a welding mode, is matched with the hole of the right clamping plate and is used for guiding and preventing rotation; the left and right clamping plates are connected with a transverse plate (6) through bolts (5), and the transverse plate (6) is provided with a positioning groove (7) which is matched with the left and right clamping plates in a positioning way to prevent the transverse plate (6) from rotating; the left and right clamping plates are provided with adjusting grooves (8), and the position of the transverse plate (6) can be adjusted up and down by screwing or loosening the bolts (5) for being suitable for guide ribs with different lengths.

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