RU35815U1 - Device for hanging pipe products - Google Patents

Description

Device for hanging pipe products

The utility model relates to the field of mechanical engineering, in particular, to quick disconnect joints used for suspension of pipe products during quenching in oil (water) with preliminary heating in a shaft furnace.

According to modern technology, hardening of tubular products is carried out in several known ways.

1) One end of the tubular product is sealed with a plug in order to prevent the outward discharge of liquid, when heated, interacting with a red-hot product. In this case, the quenching of the product along the length occurs unevenly due to the presence of an air plug inside the product, especially at the end of the product to which the plug is welded.

2) A “umbrella” type hood is installed with a suspended pipe product, which reflects a stream of heated liquid ejected from the product and directs it back to the liquid tank. This method requires large containers for liquids and high production facilities.

3) The product is obstructed, they are placed in a vertical container, which is located inside a metal box with an opener; there are sashes, precz -f-rE21B19 / 00

E21B19 / 04

Rotating spray of liquid. The hardening of the product occurs fairly evenly, but the capacity design is bulky and complex.

4) There is a known method of hardening pipe products with preheating in a shaft furnace using various gripping devices such as hooks, quick-disconnect joints, etc. This method is used in production where small containers for liquids and rooms with a limited height are used.

Known quick disconnect connections (A.S. G22035634, 2169865), which relate to the connections of pipelines of pneumatic and hydraulic systems. The disadvantage of these compounds is the complexity of the structures of the compounds and their instability to prolonged exposure to high temperatures, because of which such compounds cannot be used when quenching products with heating in shaft furnaces.

A device of the hook type is known (AS 2167999), which relates to equipment for drilling oil and gas wells, which is designed to hang the product on the hook barrel with shock absorption and rotation. The device comprises a cylindrical hollow body with a blank top cover, a hook barrel, which is secured inside the body with a spring and a bearing. By design and purpose, this device is closest to the claimed utility model, so it is taken as a prototype.

The disadvantage of the prototype is the design complexity: the presence of threaded connections, springs, bearings. The device does not provide a rigid grip of the tubular product, which does not ensure the reliability of mounting the product in a shaft furnace and moving it into a container with liquid. In addition, the prototype device does not provide a quick connection connector, which complicates the production process and adversely affects labor productivity during hardening of pipe products.

The task is real; it is a useful model for her to create a device that ensures its reliable fastening when hanging pipe products in a shaft furnace with the possibility of quick release of the product from gripping and preventing spraying of the liquid when lowering the product into the liquid tank during quenching.

This problem is solved by a device for suspending tubular products having known features: a cylindrical hollow body with a blank top cover and an earring, different from the known one in that the body is equipped with through and through holes made on the inner surface in the lower part of the body and with stops placed between them , with the possibility of interaction with the engagement elements of the tubular product according to the principle of a bayonet lock, the lid, which prevents liquid splashing, is made conical in shape, thanks For this reason, the fluid is directed into the gap formed between the cornea and the product during adhesion, and is evenly distributed over the entire surface of the product, which improves the quality of quenching of the product, and the earring is made in the form of a loop, and a jumper is installed inside the loop with the possibility of restricting the movement of the device down when lowering it for heating in a shaft furnace.

Figure 1 shows a general view of a device for suspending tubular products

In FIG. 2 shows a cross section of the device in the plane AA

In FIG. 3 - section of the device in the BB plane, rotated 90 ° counterclockwise.

A device for suspending tubular products (Fig. 1) contains a cylindrical hollow body 1, a cone-shaped cover 2, stops 3, a loop 4 and a jumper 5. The body 1 has two through 6 and two through 7 vertical grooves, which are made on the inner surface in the lower parts of the body (Fig. 2). The stops 3 (Fig. 1, 3) are rigidly installed between the grooves with the possibility of restricting the movement of the device when it interacts with the engagement elements 8 of the product (Fig. 2). The conical shape of the cover 2 contributes to the reflection of the directed fluid flow rising along the internal channel of the product, and its uniform distribution in the gap between the device body 1 and the product (Fig. 1). Netlia 4 is rigidly connected to the jumper 5, which acts as a stiffening loop and serves as a stop for hanging the device with the product in the mine shaft. With the help of loop 4, the device with the product is fixed on the crane-beam hook. All parts of the device are interconnected by one-piece connection.

The device operates as follows. Through the grooves 6 of the housing 1 of the device (Fig. 1, 2, 3) interact with the engagement elements 8 of the product when the device moves down to the stop by the cover 2 in the product. After turning the device counterclockwise to the stops 3 and moving the device up, the engagement elements 8 are moved into non-through grooves 7 of the device, and enter into the coupling with them, resulting in the capture of the product. Using the device, the product is placed in a shaft furnace, and then lowered into a container with liquid. The cover 2 (Fig. 1) reflects the heated liquid rising along the internal channel of the product, and smoothly directs it into the gap between the device and the product. Further, the liquid quietly without emissions flows down the product into the liquid tank. The device is released from engagement with the product in the reverse order: when the device moves down, the engagement elements 8 are released from interaction with non-through grooves 7 and turning the device clockwise until it stops 3 moves into the through grooves 6 of the housing. When the device moves up, the device and product are uncoupled.

The device of the claimed utility model produces a quick grip of the product, which ensures reliable fastening of pipe

products during quenching in oil (water) with preliminary heating in a shaft furnace, also provides quick release from capture after the end of the process. The device provides a guaranteed gap between the device body and the product into which the fluid flow reflected from the cover is directed. The conical shape of the lid contributes to an even distribution of liquid over the entire surface of the product, which improves the quality of quenching and prevents liquid splashing at the production site. The design of the device is simple, without moving parts and has small dimensions, which positively affects its operation.

The utility model is used in production in the process of hardening of pipe products with preliminary heating in a shaft furnace using small tanks and limited production heights.

Claims (1)

A device for suspending tube products in a shaft furnace, comprising a cylindrical hollow body with a blind top cover and an earring, characterized in that the body is provided with through and through holes made on the inner surface in the lower part of the body, and with stops installed between them to interact with elements the tubular product is engaged according to the principle of a bayonet lock, with a cone-shaped lid interacting with the fluid flow and directing this flow into the gap formed between the body and the product I eat at their engagement, earring formed as a loop, the loop within a jumper to limit downward movement of the device when it is lowered into the shaft furnace.