CN111364522A

CN111364522A - Forged well lid and manufacturing method thereof

Info

Publication number: CN111364522A
Application number: CN202010174769.0A
Authority: CN
Inventors: 焦利国
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-07-03

Abstract

The invention relates to the field of well lid machining, in particular to a forged well lid and a manufacturing method thereof.

Description

Forged well lid and manufacturing method thereof

Technical Field

The invention relates to the field of well lid processing, in particular to a forged well lid and a manufacturing method thereof.

Background

With the rapid development of modern science and technology and social economy, city construction is gradually accelerated, the scale of cities is continuously enlarged, various road facilities gradually enter standardized and standardized management, a plurality of pipelines and network cables gradually enter underground pipe networks, so the market demand of well covers in city planning and road construction is increased, as the well covers are closed objects leading to the tops of entrances and exits of the underground facilities, all public facilities such as urban roads, expressways, tap water, drainage, telecommunication, electric power, fire hydrants, valves and the like need to be provided with the well covers, the well covers are mostly made of reinforced concrete before, but the reinforced concrete has the defects of high brittleness, easy aging, easy breakage and the like and is replaced by materials such as cast iron, nodular cast iron and the like, the traditional production method of the nodular cast iron well covers is a production method of tidal sand molding, core placing, box combining and casting molding, and the production method has low yield, The labor intensity is high, the draft angle is large, the environmental pollution is serious, the production process is multiple, the production process is complex, the production efficiency is low, and the method is a production method with heavy pollution and low benefit.

Disclosure of Invention

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a forging and pressing well lid, includes the manhole cover board, the manhole cover board is close to plate body edge and sets up the outer lane roof beam along the contour direction, the well lid board is close to plate body center department and fixes being equipped with the inner circle roof beam, be equipped with the strengthening rib along well lid plate body radial between outer lane roof beam and the inner circle roof beam.

Furthermore, the surface of the well cover plate, which is far away from the surface of one side plate body of the reinforcing rib, is uniformly provided with anti-skid lugs.

Further, the outer peripheral face of the well lid plate body is fixedly provided with an installation block.

The invention also aims to provide a manufacturing method of the forged well lid.

A manufacturing method of a forged well lid comprises the following steps:

1) heating the metal blank to be processed and then placing the heated metal blank into the grooves of the upper die and the lower die;

2) the metal blank in the step 1 is rapidly deformed and filled in the die-shaped groove under the action of downward rapid stamping of a forging hammer of a stamping machine to form a well cover plate with an outer ring beam, an inner ring beam and reinforcing ribs;

3) the well lid plate formed by stamping in the step 2 is cooled after being demoulded;

4) the panel obtained by cooling in the step 3 is fixedly connected with the mounting block through welding;

5) performing surface deburring and rust removal on the welded well cover in the step 4;

6) and 5, performing anticorrosive spraying on the surface of the derusted well lid.

Preferably, the step 1 heating manner of the metal blank is magnetic induction heating.

Preferably, the step 2 press adopts a closed type hot forging die forging process.

Preferably, the step 6 adopts an electrostatic spraying process for anticorrosive spraying.

After adopting the structure, the invention has the following advantages:

simple structure, high efficiency, accurate size, impact resistance, excellent bending resistance and difficult deformation, and is suitable for professional mass production.

Drawings

FIG. 1 is a schematic view of a forged manhole cover structure;

FIG. 2 is a schematic view of a back structure of a forged manhole cover;

fig. 3 is a schematic view of the installation and use state of the forged well lid.

As shown in fig. 1-3: 1. well cover plate, 2, outer collar tie beam, 3, inner collar tie beam, 4, strengthening rib, 5, installation piece, 6, skid proof block.

Detailed Description

With the aid of attached drawings 1-3, the forging and pressing well lid comprises a well cover plate 1, wherein the well cover plate 1 is close to the edge of a plate body and is provided with an outer ring beam 2 along the circumferential direction, the well cover plate 1 is close to the center of the plate body and is fixedly provided with an inner ring beam 3, and reinforcing ribs 4 are arranged between the outer ring beam 2 and the inner ring beam 3 along the radial direction of the plate body of the well cover plate 1.

As a preferred embodiment of this embodiment, the well cover plate 1 is evenly provided with anti-slip bumps 6 on a surface of a side plate away from the reinforcing ribs 4.

As a preferred embodiment of the present embodiment, the well cover plate 1 is fixedly provided with a mounting block 5 on the outer peripheral surface of the plate body.

The manufacturing method of the forged well lid comprises the following steps:

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

2) the metal blank in the step 1 is rapidly deformed and filled in the die-shaped groove under the action of downward rapid stamping of a forging hammer of a stamping machine to form a well cover plate 1 with an outer ring beam 2, an inner ring beam 3 and reinforcing ribs 4;

3) the well lid plate 1 formed by stamping in the step 2 is cooled after being demoulded;

4) the panel 1 obtained by cooling in the step 3 is fixedly connected with the mounting block 5 through welding;

As a preferred embodiment of this embodiment, the step 1 heating the metal blank is magnetic induction heating.

As a preferred embodiment of this embodiment, the step 2 stamping press employs a closed hot forging die forming process.

As a preferred embodiment of this embodiment, in the step 6, the anticorrosive spraying adopts an electrostatic spraying process.

The invention and its embodiments have been described above, without limitation, and the embodiments shown in the drawings are only one of the embodiments of the invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a forging and pressing well lid which characterized in that: including well apron (1), well apron (1) are close to plate body edge and set up outer collar tie beam (2) along the contour direction, well apron (1) are close to plate body center department and fix and are equipped with inner ring roof beam (3), radially be equipped with strengthening rib (4) along well apron (1) plate body between outer collar tie beam (2) and inner ring roof beam (3).

2. The swaged well lid of claim 1, wherein: well apron (1) keep away from strengthening rib (4) a curb plate body surface face evenly to be laid anti-skidding lug (6).

3. The swaged well lid of claim 1, wherein: the well cover plate (1) is characterized in that an installation block (5) is fixedly arranged on the outer peripheral surface of the plate body.

4. A method of manufacturing a swaged well lid of claim 1, the method comprising the steps of:

2) the metal blank is rapidly deformed and filled in a die groove under the action of downward rapid stamping of a forging hammer of a stamping machine in the step 1 to form a well cover plate (1) with an outer ring beam (2), an inner ring beam (3) and reinforcing ribs (4);

3) the well cover plate (1) formed by stamping in the step 2 is cooled after being demoulded;

4) the panel (1) obtained by cooling in the step (3) is fixedly connected with the mounting block (5) through welding;

5. The method of swaging well lids of claim 4, wherein: the heating mode of the metal blank in the step 1 is magnetic induction heating.

6. The method of swaging well lids of claim 4, wherein: and 2, adopting a closed hot forging die forging process for the punch in the step 2.

7. The method of swaging well lids of claim 4, wherein: and 6, adopting an electrostatic spraying process for anticorrosive spraying.