CN112122558B

CN112122558B - Casting pipe pressure regulator

Info

Publication number: CN112122558B
Application number: CN202011070179.XA
Authority: CN
Inventors: 王以春
Original assignee: SHANGHAI BAOSTEEL CASTING CO Ltd
Current assignee: SHANGHAI BAOSTEEL CASTING CO Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-11-23
Anticipated expiration: 2040-10-10
Also published as: CN112122558A

Abstract

The invention relates to a casting inter-pipe pressure adjuster, wherein a steel pipe is cast in a casting, an inclined wedge is arranged in a double-layer or multi-layer mutual sleeved steel pipe gap, the steel pipe is provided with the inter-pipe pressure adjuster, the upper part of a main sleeve is provided with a fixing bolt for clamping the main sleeve, the middle part to the lower end part of the main sleeve is provided with an auxiliary sleeve, the upper end part of the auxiliary sleeve is provided with a spanner, the auxiliary sleeve extends downwards and exceeds the lower end part of the main sleeve, and the lower end part of the auxiliary sleeve is connected with a bearing sleeve provided with a ball. The main sleeve is sleeved into the steel pipe and fixed by the fixing bolt, the auxiliary sleeve moves downwards by rotating the wrench, the lower part of the steel pipe is sleeved with the outer layer steel pipe, the inclined wedge is arranged at the initial position of the gap between the outer layer steel pipe and the steel pipe, and the auxiliary sleeve moves downwards to drive the bearing sleeve and the ball to apply pressure to the inclined wedge so that the inclined wedge is stably fixed in the gap. The casting inter-pipe pressure adjuster replaces an inter-pipe inclined wedge knocking-in mode, does not change the integral formation of the casting shape, does not influence the normal implementation of the casting process, improves the deviation formed by the inter-pipe gap, and has good practical effect.

Description

Casting pipe pressure regulator

Technical Field

The invention belongs to the metallurgical casting industry, and particularly relates to an intertube pressure regulator for producing a cast steel pipe.

Background

In the casting production, steel pipes are often required to be cast in castings of casting products, a gap is often required when double-layer or multi-layer mutual sleeved steel pipe casting is carried out, and the gap is often fixed in the actual production by adopting a mode of knocking in and wedging obliquely. However, in the process of knocking in the wedges, because the number of the wedges is more than one, the gaps are prone to deviation due to knocking in sequence and need to be adjusted for multiple times, operation is troublesome, and the sand mold is prone to damage due to knocking vibration. This tolerance variation is often more difficult to correct later in the casting if it remains in the casting.

To improve upon the above, and to be economical and effective, those skilled in the art have sought to develop a cast tube-to-tube adjuster that replaces the manner in which the wedges are driven into the casting gap.

Disclosure of Invention

The invention aims to provide a casting inter-pipe pressure regulator, which uses an inter-pipe pressure regulator to replace an inter-pipe inclined wedge knocking-in mode in a casting production occasion with a certain inter-pipe gap requirement for casting a steel pipe, does not change the integral shape of a casting, does not influence the normal implementation of a casting process, improves the deviation of inter-pipe gap formation, and solves the problems in the prior art.

The technical solution of the invention is as follows:

a casting inter-pipe pressure adjuster is characterized in that a steel pipe is cast in a casting, an inclined wedge is arranged in a double-layer or multi-layer inter-sleeved steel pipe gap, and the steel pipe is provided with the inter-pipe pressure adjuster which consists of a main sleeve, a fixed bolt, an auxiliary sleeve, a wrench, a bearing sleeve and a ball;

the upper part of the main sleeve is provided with a fixing bolt for clamping the main sleeve, the middle part to the lower end part of the main sleeve is provided with an auxiliary sleeve, the upper end part of the auxiliary sleeve is provided with a spanner, the auxiliary sleeve extends downwards and exceeds the lower end part of the main sleeve, and the lower end part of the auxiliary sleeve is connected with a bearing sleeve provided with balls;

the main sleeve is sleeved into the steel pipe and fixed by the fixing bolt, the auxiliary sleeve moves downwards by rotating the wrench, the outer layer steel pipe is sleeved on the lower portion of the steel pipe, the inclined wedge is arranged at the initial position of a gap between the outer layer steel pipe and the steel pipe, and the auxiliary sleeve moves downwards to drive the bearing sleeve and the ball to apply pressure to the inclined wedge so that the inclined wedge is stably fixed in the gap.

The lower end of the auxiliary sleeve is provided with a bulge, a groove and a ball are arranged in the bearing sleeve, and the bulge of the auxiliary sleeve is movably connected in the groove of the bearing sleeve.

The main sleeve is connected with the auxiliary sleeve through threads.

The casting inter-pipe pressure regulator is used in the casting production occasion with certain inter-pipe gap requirement for casting steel pipes, and the inter-pipe pressure regulator is used to replace the inter-pipe wedge knocking-in mode without integrally changing the shape of the casting, and without affecting the normal implementation of the casting process, thereby improving the deviation of the inter-pipe gap formation and having more ideal practical effect.

Drawings

FIG. 1 is a schematic diagram of a casting tube pressure regulator of the present invention.

Reference numerals:

1 is a steel pipe, 2 is a main sleeve, 3 is a fixing bolt, 4 is an auxiliary sleeve, 5 is a wrench, 6 is a bearing sleeve, 7 is a ball, 8 is an inclined wedge, and 9 is an outer-layer steel pipe.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 1, the present invention provides an intertube pressure regulator for castings, in which a steel tube is cast, and wedges 8 are inserted into a gap between the steel tubes in a double-layered or multi-layered nested form. As shown in fig. 1, an inter-pipe pressure adjuster is provided on a steel pipe 1, and the inter-pipe pressure adjuster is composed of a main sleeve 2, a fixing bolt 3, an auxiliary sleeve 4, a wrench 5, a bearing sleeve 6, and balls 7.

The upper part of the main sleeve 2 is provided with two or three fixing bolts 3 for clamping the main sleeve. An auxiliary sleeve 4 is arranged from the middle part to the lower end part of the main sleeve 2, and the auxiliary sleeve 4 is connected with the main sleeve 2 through threads. The upper end of the auxiliary sleeve 4 is provided with a spanner 5, and two or three spanners 5 can be arranged. The wrench 5 may be fixed or unfixed as desired. The sub-sleeve 4 extends downward beyond the lower end of the main sleeve 2. The lower end of the auxiliary sleeve 4 is connected with a bearing sleeve 6 provided with balls 7.

As shown in figure 1, the lower end part of the auxiliary sleeve 4 is provided with a bulge, the bearing sleeve 6 is internally provided with a groove and a ball 7, and the bulge of the auxiliary sleeve 4 is movably connected in the groove of the bearing sleeve 6.

The main sleeve 2 is sleeved into the steel pipe 1 and fixed by the fixing bolt 3, the auxiliary sleeve 4 moves downwards by rotating the wrench 5, the outer steel pipe 9 is sleeved on the lower portion of the steel pipe 1, the inclined wedge 8 is arranged at the initial position of the gap between the outer steel pipe 9 and the steel pipe 1, and the auxiliary sleeve 4 moves downwards to drive the bearing sleeve 6 and the ball 7 to apply pressure to the inclined wedge 8 so that the inclined wedge 8 is fixed in the gap. The number of the wedges 8 arranged in the gap can be arranged according to the requirement, and the size of the wedges 8 can be determined according to the requirement of the gap between the pipes.

The casting inter-pipe pressure regulator of the invention has the working process as follows:

when the casting pressure adjuster is used, a casting inter-pipe pressure adjuster is sleeved on a steel pipe 1, the using position is adjusted, a fixing bolt 3 is fastened to fix the casting inter-pipe pressure adjuster, a wrench 5 is rotated to enable an auxiliary sleeve 4 to move downwards, and pressure is applied to a plurality of pre-placed inter-pipe inclined wedges 8 through balls 7 and a bearing sleeve 6 to enable the pre-placed inter-pipe inclined wedges to form a gap between the steel pipe 1 and an outer layer steel pipe 9; and after the wrench 5 is further rotated to stabilize the inclined wedge 8, the wrench 5 is reversely rotated to release pressure, and the casting inter-pipe pressure adjuster is released after the fixing bolt 3 is loosened.

In conclusion, the casting inter-pipe pressure regulator is used in the casting production occasions with certain inter-pipe gap requirements for casting steel pipes, and the inter-pipe pressure regulator is used for replacing an inter-pipe wedge knocking-in mode without changing the whole casting shape and influencing the normal implementation of casting process, so that the deviation of the inter-pipe gap formation is improved, and the casting inter-pipe pressure regulator has a more ideal practical effect.

Of course, those skilled in the art will recognize that the above-described embodiments are illustrative only and not intended to be limiting, and that changes, modifications, etc. to the above-described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit and scope of the present invention.

Claims

1. The utility model provides a ware is transferred to pressure between foundry goods pipe, casts the steel pipe in the foundry goods, puts into the wedge in the steel pipe clearance of double-deck or multilayer mutual cover form, its characterized in that: arranging an inter-pipe pressure adjuster on the steel pipe, wherein the inter-pipe pressure adjuster consists of a main sleeve (2), a fixing bolt (3), an auxiliary sleeve (4), a wrench (5), a bearing sleeve (6) and a ball (7);

the upper part of the main sleeve (2) is provided with a fixing bolt (3) for clamping the main sleeve, the middle part to the lower end part of the main sleeve (2) is provided with an auxiliary sleeve (4), the upper end part of the auxiliary sleeve (4) is provided with a wrench (5), the auxiliary sleeve (4) extends downwards and exceeds the lower end part of the main sleeve (2), and the lower end part of the auxiliary sleeve (4) is connected with a bearing sleeve (6) provided with a ball (7);

the main sleeve (2) is sleeved into the steel pipe (1) and fixed by the fixing bolt (3), the auxiliary sleeve (4) moves downwards by rotating the wrench (5), the outer-layer steel pipe (9) is sleeved on the lower portion of the steel pipe (1), the inclined wedge (8) is arranged at the starting position of a gap between the outer-layer steel pipe (9) and the steel pipe (1), and the auxiliary sleeve (4) moves downwards to drive the bearing sleeve (6) and the ball (7) to apply pressure to the inclined wedge (8) so that the inclined wedge (8) is fixed in the gap;

the lower end part of the auxiliary sleeve (4) is provided with a bulge, a groove and a ball (7) are arranged in the bearing sleeve (6), and the bulge of the auxiliary sleeve (4) is movably connected in the groove of the bearing sleeve (6);

when the device is used, the casting inter-pipe pressure adjuster is sleeved on the steel pipe (1), the using position is adjusted, the fixing bolt (3) is fastened to fix the casting inter-pipe pressure adjuster, the wrench (5) is rotated to enable the auxiliary sleeve (4) to move downwards, and pressure is applied to a plurality of pre-placed inter-pipe inclined wedges (8) through the balls (7) and the bearing sleeve (6) to form a gap between the steel pipe (1) and the outer-layer steel pipe (9); and further rotating the wrench (5) to stabilize the inclined wedge (8), reversely rotating the wrench (5) to release pressure, and releasing the fixing bolt (3) and then unloading the casting inter-pipe pressure adjuster.

2. The cast tube pressure conditioner of claim 1, wherein: the main sleeve (2) is connected with the auxiliary sleeve (4) through threads.