Special hydraulic equipment for manufacturing end socket with large caliber of more than 10 meters

Abstract

The utility model belongs to the technical field of seal head manufacturing, and particularly relates to special hydraulic equipment for manufacturing a large-diameter seal head with the diameter larger than 10 m. The special hydraulic equipment comprises a base and a hydraulic shell, the top of the base is connected with the hydraulic shell through a supporting rod, and a forming assembly is fixed to the top of the base; a forming cavity is formed in the top of a forming die of the forming assembly, sliding cavities are evenly formed in the top of the forming cavity in a surrounding mode, reset sliding blocks are installed in the sliding cavities in a sliding mode, sliding rods are connected to the rear ends of the reset sliding blocks, and springs are embedded in the sliding rods. The plate-shaped part is placed on the forming die, the forming pressure head is driven by the hydraulic cylinder to perform one-time downward pressing, and then the plate-shaped part is pressed by the plurality of resetting modules, so that the plate-shaped part forms a one-time recess during one-time downward pressing, and the condition that the plate-shaped part is cracked due to overlarge one-time hydraulic forming deformation is avoided; and meanwhile, the temperature of the plate can be increased through one-time hydraulic deformation, and the hardness and strength can be reduced to a certain degree.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of head manufacturing, and specifically to a hydraulic equipment special for 10-meter or more large-diameter head manufacturing. BACKGROUND

[0002] The head is used for closing the end of the container, and realizes the isolation of the medium in and out of the container, which is usually installed on the pressure container, storage tank, heat exchanger and other equipment as one of the main pressure-bearing components of these equipment

[0003] In the process of manufacturing the 10-meter or more large-diameter head, if the plate-shaped part has certain quality problems, such as insufficient purity and thickness, it is easy to crack in the hydraulic process, especially in the cold forming process of large-size head, the hardness and strength of the metal will increase, and the plasticity and toughness will decrease, and the cold deformation strengthening phenomenon will cause the head to crack more easily under stress.

[0004] Therefore, we propose a hydraulic equipment special for 10-meter or more large-diameter head manufacturing, which adopts twice hydraulic forming to avoid the cracking of the plate-shaped part due to excessive deformation in one-time hydraulic forming, and the temperature of the plate part can be improved by one-time hydraulic deformation, which can reduce the hardness and strength to a certain extent. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a hydraulic equipment special for 10-meter or more large-diameter head manufacturing to solve the problems in the above background.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a hydraulic equipment special for 10-meter or more large-diameter head manufacturing, comprising a base and a hydraulic shell, the base top is connected with the hydraulic shell through the support rod, the base top is fixed with the forming assembly;

[0007] The forming die of the forming assembly is provided with a forming cavity at the top, a sliding cavity is uniformly provided around the top of the forming cavity, a reset sliding block is slidingly installed in the sliding cavity, a slide rod is connected to the rear end of the reset sliding block, a spring is nested in the slide rod, the reset sliding block is slidingly received in the sliding cavity by compressing the spring, an arc surface is provided on the side wall of the reset sliding block facing the center of the forming cavity, and the head is formed by the forming assembly twice.

[0008] Further, a hydraulic cylinder is installed at the top of the hydraulic shell, a forming pressure head is connected to the bottom of the hydraulic cylinder, and the shape of the forming pressure head is the same as that of the forming cavity.

[0009] Further, guide rods are connected to the two sides of the forming pressure head, and the guide rods slide up and down in the hydraulic shell.

[0010] Further: the reset slider bottom is fixed with wear-resistant block.

[0011] Further: the hydraulic cylinder drives the forming pressure head to press twice, so that the head is formed twice by the forming assembly.

[0012] Further: the slide rod penetrates the forming die, and the inner wall of the sliding cavity is provided with a groove for accommodating the spring.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are:

[0014] 1) the hydraulic equipment special for manufacturing more than 10-meter large-diameter head, through the setting of reset slider, slide rod and spring, the plate-shaped piece is placed on the forming die, the forming pressure head is driven by the hydraulic cylinder to press once, then the plate-shaped piece is pressed by multiple reset modules, so that the plate-shaped piece forms a concave once by one-time pressing, avoids the case that the plate-shaped piece is cracked due to too large one-time hydraulic forming deformation, and the temperature of the plate piece can be improved by one-time hydraulic deformation, so that the hardness and strength can be reduced to a certain extent.

[0015] 2) the hydraulic equipment special for manufacturing more than 10-meter large-diameter head, through the hydraulic cylinder drives the forming pressure head to press twice, in the process of pressing, the reset slider is contracted under the action of pressure, the reset spring is retracted into the reset cavity, so that the forming pressure head completes the head forming by entering the forming cavity, which is beneficial to reducing the prestress by twice hydraulic forming to avoid the cracking of large-size one-time forming. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model;

[0017] Figure 2 It is the forming assembly structure schematic view of the utility model;

[0018] Figure 3 It is the forming assembly structure side view schematic view of the utility model;

[0019] Figure 4 It is the reset slider structure schematic view of the utility model;

[0020] Figure 5 It is the internal structure schematic view of the hydraulic shell of the utility model.

[0021] The figure mark is: 1, hydraulic shell;11, hydraulic cylinder;12, forming pressure head;13, guide rod;2, support rod;3, forming assembly;31, forming die;32, forming cavity;33, sliding cavity;34, reset slider;341, wear-resistant block;35, spring;36, slide rod;4, base. DETAILED DESCRIPTION

[0022] The technical solutions in the utility model will be described clearly and completely in combination with the drawings in the utility model, and the forms of each structure recorded in the following embodiments are only examples, and the structures involved in the utility model are not limited to each structure recorded in the following embodiments, and all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Embodiment:

[0024] Please refer to Figures 1-5 The utility model provides a technical scheme: a special hydraulic equipment for making large diameter head above 10m, it includes base 4 and hydraulic shell 1, the top of base 4 is connected with hydraulic shell 1 through support rod 2, the top of hydraulic shell 1 is installed with hydraulic cylinder 11, the bottom of hydraulic cylinder 11 is connected with forming pressure head 12, drives forming pressure head 12 to press down through hydraulic cylinder 11, the shape of forming pressure head 12 is same with the shape of forming cavity 32, the both sides of forming pressure head 12 are connected with guide rod 13, guide rod 13 is located in the up and down sliding of hydraulic shell 1, and the movement track of forming pressure head 12 is linear through the up and down movement of guide rod 13 in hydraulic shell 1.

[0025] The top of base 4 is fixed with forming assembly 3;

[0026] The top of forming die 31 of forming assembly 3 is provided with forming cavity 32, and forming cavity 32 is the modeling of head, the top of forming cavity 32 is uniformly provided with sliding cavity 33, reset sliding block 34 is slidably installed in sliding cavity 33, reset sliding block 34 is located in the sliding of sliding cavity 33, the bottom surface of reset sliding block 34 is fixed with wear-resistant block 341, wear-resistant block 341 needs to adopt copper material, the rear end of reset sliding block 34 is connected with slide rod 36, slide rod 36 penetrates forming die 31, and the movement of reset sliding block 34 is linear through slide rod 36;

[0027] The inner wall of sliding cavity 33 is provided with groove for accommodating spring 35, spring 35 is nested in slide rod 36, reset sliding block 34 is slidably received in sliding cavity 33 by compressing spring 35, reset sliding block 34 is ejected from sliding cavity 33 by the expansion of spring 35, under the action of external pressure, spring 35 is contracted, so that reset sliding block 34 is received in sliding cavity 33, the side wall of reset sliding block 34 facing the center of forming cavity 32 is provided with arc surface, and the arc surfaces of multiple reset sliding blocks 34 form a small concave surface, which is used for creating a smaller concave surface when hydraulic pressure is applied to the plate-shaped part for the first time, the head is formed twice through forming assembly 3, and the head is formed twice through forming assembly 3 by the twice pressing of forming pressure head 12 driven by hydraulic cylinder 11.

[0028] The plate-shaped piece is placed on the forming die 31, the forming pressure head 12 is driven by the hydraulic cylinder 11 to perform one-time pressing, and then the plate-shaped piece is pressed under the plurality of reset modules, so that the plate-shaped piece is pressed to form a one-time recess under the plurality of reset modules, and then the forming pressure head 12 is driven by the hydraulic cylinder 11 to perform two-time pressing, and in the process of pressing, the reset slider 34 is contracted under the action of the spring 35, so that the reset spring 35 is retracted into the reset cavity, and the forming pressure head 12 is completed to enter the forming cavity 32 to complete the head forming.

[0029] The working principle of the embodiment of the utility model is that the plate-shaped piece with a diameter of more than 10 meters is placed on the forming die 31, the forming pressure head 12 is driven by the hydraulic cylinder 11 to perform one-time pressing, and then the plate-shaped piece is pressed under the plurality of reset modules, so that the plate-shaped piece is pressed to form a one-time recess under the plurality of reset sliders 34, and then the forming pressure head 12 is driven by the hydraulic cylinder 11 to perform two-time pressing, and in the process of pressing, the reset slider 34 is contracted under the action of the spring 35, so that the reset spring 35 is retracted into the reset cavity, the slide rod 36 slides outward, so that the forming pressure head 12 is completed to enter the forming cavity 32 to complete the head forming, and the plate-shaped piece enters the forming cavity 32 to form a head.

[0030] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, and any figure mark in the claims should not be regarded as limiting the involved claims.

[0031] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic equipment for manufacturing large-diameter head of more than 10 meters, comprising a base (4) and a hydraulic shell (1), the top of the base (4) is connected with the hydraulic shell (1) through a supporting rod (2), characterized in that: The top of the base (4) is fixed with a forming assembly (3); The top of the forming die (31) of the forming assembly (3) is provided with a forming cavity (32), the top of the forming cavity (32) is uniformly provided with a sliding cavity (33), the inside of the sliding cavity (33) is slidably provided with a reset sliding block (34), the rear end of the reset sliding block (34) is connected with a sliding rod (36), the inside of the sliding rod (36) is nested with a spring (35), the reset sliding block (34) is slidably received into the sliding cavity (33) by compressing the spring (35), the side wall of the reset sliding block (34) facing the center of the forming cavity (32) is provided with an arc surface, and the head is formed by the forming assembly (3) twice.

2. The hydraulic equipment for manufacturing the large-diameter head of more than 10 meters according to claim 1, characterized in that: The inside top of the hydraulic shell (1) is provided with a hydraulic cylinder (11), the bottom of the hydraulic cylinder (11) is connected with a forming pressure head (12), and the shape of the forming pressure head (12) is the same as that of the forming cavity (32).

3. The hydraulic equipment for manufacturing the large-diameter head over 10 meters according to claim 2, characterized in that: The two sides of the forming pressure head (12) are connected with guide rods (13), and the guide rods (13) slide up and down in the hydraulic shell (1).

4. The hydraulic equipment for manufacturing the large-diameter head over 10 meters according to claim 1, characterized in that: The bottom surface of the reset sliding block (34) is fixed with a wear-resistant block (341).

5. The hydraulic equipment for manufacturing the large-diameter head of more than 10 meters according to claim 2, characterized in that: The hydraulic cylinder (11) drives the forming pressure head (12) to be pressed twice, so that the head is formed by the forming assembly (3) twice.

6. The hydraulic equipment for manufacturing the large-diameter head over 10 meters according to claim 1, characterized in that: The sliding rod (36) penetrates the forming die (31), and the inner wall of the sliding cavity (33) is provided with a groove for accommodating the spring (35).

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