SAE hydraulic plane welding flange

Abstract

The utility model relates to the technical field of flanges, in particular to an SAE hydraulic plane welding flange which comprises a flange body, bolt fastening holes and a center hole are formed in the surface of the flange body, the bolt fastening holes surround the periphery of the center hole, a welding flux pipe is fixedly installed on the surface of the flange body, and the welding flux pipe is fixedly connected with the flange body. The outer diameter of the solder pipe is larger than the diameter of the center hole. According to the flange, the integrally-formed connecting sleeve design enhances the connecting strength of the flange and a pipeline, the problems of liquid leakage, fatigue damage and the like possibly caused by a traditional splicing mode are solved, meanwhile, the production cost is reduced, the reinforcing ribs distributed circumferentially are arranged at the connecting position of the welding flux pipe and the flange body, the anti-pressure capacity is greatly improved, and the service life of the flange is prolonged. It is ensured that the device operates stably under the conditions of high vibration and impact, deformation or cracking of a welding part is avoided, the bevel edge of the end face of the welding flux pipe can be attached to a connecting part more rapidly and firmly during welding, and therefore efficient welding is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field especially relates to a SAE hydraulic plane welding flange. BACKGROUND

[0002] Flange, also called flange flange or lug, flange is the connecting part between shaft and shaft, used for the connection between pipe ends, also used on the flange of equipment, used for the connection between two devices, such as speed reducer flange, flange connection or flange joint, refers to the combined sealing structure of flange, gasket and bolt, pipe flange refers to the flange used for pipe arrangement in pipe device, used on the equipment refers to the inlet and outlet flange of equipment, the flange has a hole, the bolt makes two flanges tightly connected, the flange is sealed between the flanges, the flange is screw connection (screw connection) flange, welding flange and clamping flange, the flange is used in pairs, the screw flange can be used for low pressure pipeline, the welding flange is used for pressure above four kilograms, the sealing gasket is added between the two flange plates, and then the bolt is fastened.

[0003] At present, the welding position of the welding flange is a right angle, which is not conducive to automatic welding, and can only be welded manually, which consumes labor and has low efficiency, in addition, the structure support of the flange connection is not enough, which leads to insufficient bearing capacity of the welding area, and deformation or rupture is easy to occur under the action of high pressure liquid impact or vibration. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the technical problems in the background art.

[0005] The utility model adopts the following technical scheme: a SAE hydraulic plane welding flange, including flange body, the surface of flange body is provided with bolt fastening hole and center hole, the bolt fastening hole surrounds the four around center hole, the surface of flange body is fixedly installed with solder pipe, the outer diameter of solder pipe is greater than the diameter of center hole, the hole diameter of solder pipe is consistent with the hole diameter of center hole, the end face of solder pipe is provided as bevel, the end face of flange body is provided with sealing ring embedding groove.

[0006] Preferably, the bolt fastening hole is fixedly installed with a connecting sleeve on one side of the back surface of the flange body, and the connecting sleeve and the flange body are integrally formed. Here, the connection strength of the flange and the external pipeline can be enhanced, the stress concentration at the connection is reduced, the service life is improved, in addition, the integral forming reduces the splicing link in the production process, reduces the manufacturing cost, and avoids the potential liquid leakage or insufficient strength problem caused by splicing.

[0007] Preferably, the flange body and the solder pipe are made of stainless steel material. Here, the stainless steel material has excellent corrosion resistance, can be used for a long time under various complex hydraulic working conditions, ensures that the flange and the solder pipe can still maintain stable mechanical properties under extreme environments, and increases reliability.

[0008] Preferably, the connection part of the solder pipe and the flange body is provided with a reinforcing rib, and the reinforcing rib is circumferentially distributed on the surface of the flange body. Here, additional mechanical support is provided, the strength of the connection part is improved, higher hydraulic load can be borne, the deformation resistance of the flange under high vibration or impact conditions is enhanced, and the use safety and reliability of the flange are further improved.

[0009] Preferably, the inside of the sealing ring groove is fixedly provided with a protrusion, and the surface of the protrusion is arc-shaped. Here, stronger fixation can be provided when the sealing ring is installed, displacement or falling of the sealing ring due to pressure change or long-term use is avoided, the difficulty of installing the sealing ring is reduced, and assembly efficiency is improved.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are that:

[0011] In the utility model, the connection sleeve of integral molding enhances the connection strength of the flange and the pipeline, avoids problems such as liquid leakage and fatigue damage that can be caused by the traditional splicing mode, reduces production cost, the connection part of the solder pipe and the flange body is provided with circumferentially distributed reinforcing ribs, the compression resistance is greatly improved, the device is ensured to operate stably under high vibration and impact conditions, and deformation or cracking of the welding part is avoided, the bevel of the end surface of the solder pipe facilitates faster and more firm attachment of the connecting part during welding, and therefore efficient welding is realized. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A schematic view of the SAE hydraulic plane welding flange is provided for the utility model;

[0013] Figure 2 A bottom view of the SAE hydraulic plane welding flange is provided for the utility model;

[0014] Figure 3 A sectional view of the SAE hydraulic plane welding flange is provided for the utility model;

[0015] Figure 4 A sectional view of the SAE hydraulic plane welding flange is provided for the utility model; Figure 3 An enlarged view of A in the middle.

[0016] LEGEND:

[0017] 1, flange body; 2, bolt fastening hole; 3, sealing ring groove; 4, center hole; 5, connecting sleeve; 6, solder pipe; 7, bevel; 8, reinforcing rib; 9, protrusion. DETAILED DESCRIPTION

[0018] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific details set forth herein, and the present application is not limited to the specific embodiments described below.

[0020] EMBODIMENT

[0021] Please refer to Figures 1-4The utility model provides a technical scheme: a SAE hydraulic plane welding flange, including flange body 1, the surface of flan body 1 is equipped with bolt fastening hole 2 and center hole 4, bolt fastening hole 2 surrounds the four around of center hole 4, bolt fastening hole 2 is located the side fixed mounting of flange body 1 back, the integration between connecting sleeve 5 and flange body 1 is integrative, this design strictly follows the standard requirement of the integration design of hydraulic flange structure in SAE J518, can strengthen the connecting strength of flange and external pipeline, reduces the stress concentration at the joint, to improve the service life, in addition integrative reduces the splicing link in production process, reduces the manufacturing cost, avoids the potential leakage or insufficient strength problem caused by splicing simultaneously, the surface fixed mounting of flange body 1 is equipped with solder pipe 6, and flange body 1 and solder pipe 6 all adopt the stainless steel material made to SAE recommended, and the stainless steel material has excellent corrosion resistance, can satisfy the long-term use requirement of hydraulic system component under complex working condition in SAE standard, ensures that flange and solder pipe 6 still can keep stable mechanical property under extreme environment, increases reliability, and the joint of solder pipe 6 and flange body 1 is equipped with reinforcing rib 8, and reinforcing rib 8 is circumferentially distributed on the surface of flange body 1, meets the requirement of high-pressure flange fatigue resistance in SAE standard, provides additional mechanical support, improves the strength of the joint, can bear higher hydraulic load, enhances the deformation resistance of flange under high vibration or impact condition, further improves the use safety and reliability of flange, the outer diameter of solder pipe 6 is greater than the diameter of center hole 4, and the aperture of solder pipe 6 is consistent with the aperture of center hole 4, and the end face of solder pipe 6 is provided as bevel 7, meets the guiding principle of high-efficiency welding in SAE standard, helps more quickly, firmly and closely connected components when welding, to improve welding efficiency and stability, the end face of flange body 1 is equipped with sealing ring embedding groove 3, the inside fixed mounting of sealing ring embedding groove 3 is equipped with protrusion 9, the surface of protrusion 9 is provided as arc, can provide stronger fixed action when installing sealing ring, avoids the displacement or drop of sealing ring due to pressure change or long-term use, reduces the difficulty of installing sealing ring simultaneously, improves assembly efficiency.

[0022] Working principle: the flange body 1 is the core bearing structure of the whole device, the surface is uniformly distributed with a plurality of bolt fastening holes 2, which are arranged around the center hole 4, the arrangement and installation of the bolt completely follow the size and tolerance requirements of the hydraulic flange fastening connection in SAE J518 standard, through the bolt, the flange can be reliably fixed with other equipment or pipeline, when using the welding flange, the flange needs to be welded with the surface of the pipeline, the end face of the solder pipe 6 is bevel 7, the design of bevel 7 strictly refers to the optimization requirements of the welding efficiency in SAE standard, which is convenient for faster and more firmly fitting the connecting parts during welding, so as to realize efficient welding, the connecting part of the solder pipe 6 and the flange body 1 is arranged with circumferentially distributed reinforcing ribs 8, the existence of these reinforcing ribs 8 provides additional mechanical support, ensures that the welding point can withstand the impact from the liquid pressure, and improves the stability of the device during high vibration or long-term use, completely meets the requirements of SAE standard on the fatigue resistance of hydraulic system components, the connecting sleeve 5 and the flange body 1 are integrally formed, and the standard interface is formed by machining, which is used for quick assembly with SAE series hydraulic pipeline system. The size of the standard interface meets the tolerance range in SAE standard, ensuring the reliability and operation convenience of the overall connection, the end face of the flange body 1 is provided with a sealing ring embedding groove 3, and the embedding groove is provided with an arc-shaped protrusion 9, the function of the arc-shaped protrusion 9 is to stabilize the sealing ring, so that it remains in a fixed state in the embedding groove, when installing the sealing ring, the sealing ring is embedded in the embedding groove, the protrusion 9 is in close contact with the sealing ring, avoiding the displacement of the sealing ring caused by vibration or fluid pressure fluctuation. The optimized design of the sealing structure completely meets the requirements of SAE standard on the sealing performance of the hydraulic flange, in the working process, the flange is fastened by the bolt to realize mechanical connection, the solder pipe 6 and the equipment are fixed by welding to form a fluid passage, the reinforcing rib 8 supports the welding point, and the sealing ring provides sealing performance after being fixed by the embedding groove and the protrusion 9.

[0023] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments made according to the technical essence of the present application still belong to the protection scope of the present application technical scheme.

Claims

1. A SAE hydraulic flat face welded flange comprising a flange body (1), characterized in that: The surface of the flange body (1) is provided with bolt fastening holes (2) and a center hole (4), the bolt fastening holes (2) are arranged around the center hole (4), the surface of the flange body (1) is fixedly provided with a solder pipe (6), the outer diameter of the solder pipe (6) is larger than the diameter of the center hole (4), the hole diameter of the solder pipe (6) is consistent with the hole diameter of the center hole (4), the end surface of the solder pipe (6) is provided with a bevel (7), and the end surface of the flange body (1) is provided with a sealing ring embedding groove (3).

2. The SAE hydraulic flat face weld flange of claim 1, wherein: The bolt fastening hole (2) is fixedly provided with a connecting sleeve (5) on one side of the back surface of the flange body (1), and the connecting sleeve (5) is integrally formed with the flange body (1).

3. The SAE hydraulic flat face weld flange of claim 1, wherein: The flange body (1) and the solder pipe (6) are made of stainless steel.

4. The SAE hydraulic flat face weld flange of claim 1, wherein: The connecting part of the solder pipe (6) and the flange body (1) is provided with a reinforcing rib (8), and the reinforcing rib (8) is circumferentially distributed on the surface of the flange body (1).

5. The SAE hydraulic flat face weld flange of claim 1, wherein: The inside of the sealing ring embedding groove (3) is fixedly provided with a protrusion (9), and the surface of the protrusion (9) is provided with an arc shape.

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