CN215112050U - Hydraulic steel pipe assembly - Google Patents
Hydraulic steel pipe assembly Download PDFInfo
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- CN215112050U CN215112050U CN202120642204.0U CN202120642204U CN215112050U CN 215112050 U CN215112050 U CN 215112050U CN 202120642204 U CN202120642204 U CN 202120642204U CN 215112050 U CN215112050 U CN 215112050U
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Abstract
The utility model discloses a hydraulic steel pipe assembly, it includes: one end of the first steel pipe is connected with the pipe seat through friction welding; the three-way joint comprises a first end, a second end and a third end, wherein the first end and the second end are respectively provided with a first boss and a second boss which protrude outwards, and the first boss is connected with the other end of the first steel pipe through self-melting welding; a right-angle joint body, one side of which is provided with a third boss; and one end of the second steel pipe is connected with the third boss through self-fluxing welding, and the other end of the second steel pipe is connected with the second boss through self-fluxing welding. The utility model discloses can eliminate defects such as welding seam crackle that the steel pipe assembly produced effectively to obtain high-quality welding seam and stable welded structure, fully satisfied the sealed and the intensity requirement of steel pipe assembly welding seam in the in-service use, and this welding mode is easy and simple to handle, does not need special welding power supply, very big reduction manufacturing cost.
Description
Technical Field
The utility model relates to a steel pipe technical field especially relates to a hydraulic pressure steel pipe assembly.
Background
In the prior art, a steel pipe assembly of a hydraulic system of engineering machinery adopts carbon dioxide (CO)2) The gas shielded welding steel pipe assembly comprises a bent pipe, and a pipe seat and a right-angle joint body are respectively arranged at two ends of the bent pipe. The welding of the welding head adopts carbon dioxide (CO)2) Gas shielded welding, but carbon dioxide (CO)2) In the actual welding of the gas shielded welding, if the parameters of the welding process are selected incorrectly, the welding materials are not used properly, the welding method is selected incorrectly, the related performance of welding equipment is not known, and the like, various welding defects can be generated on the welding seam. Usually the internal defects of the weld are mainly: cratering, burn-through, undercut, flash, unfused, cracking, spatter, etc. The defects are a complicated and dynamic change process, the quality of the welding seam of the steel pipe welding head is difficult to control,
because the working condition environment of the engineering machinery is generally severe, the working time is long, the vibration amplitude is large, the fatigue damage and oil leakage of the welding seam of the hydraulic pipeline are often caused in the vibration process, the early failure of the welding seam is obvious, and the replacement and maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above technical problems, it is necessary to provide a hydraulic steel pipe assembly which effectively eliminates the defects of weld cracks and the like generated by the steel pipe assembly, is simple and convenient to operate, and has low production cost.
A hydraulic steel tube assembly, comprising:
one end of the first steel pipe is connected with the pipe seat through friction welding;
the three-way joint comprises a first end, a second end and a third end, wherein the first end and the second end are respectively provided with a first boss and a second boss which protrude outwards, and the first boss is connected with the other end of the first steel pipe through self-melting welding;
a right-angle joint body, one side of which is provided with a third boss;
and one end of the second steel pipe is connected with the third boss through self-fluxing welding, and the other end of the second steel pipe is connected with the second boss through self-fluxing welding.
In one embodiment, the inner diameter of the socket is the same as the inner diameter of the first steel pipe.
In one embodiment, the first end and the second end of the three-way joint body are in a straight line, the three-way joint body is provided with a through hole penetrating through the first end and the second end, and the inner diameter of the through hole is the same as that of the first steel pipe and that of the second steel pipe.
In one embodiment, the outer surface of the tube seat is provided with an arc transition step.
In one embodiment, the first steel pipe is a profile pipe.
According to the hydraulic steel pipe assembly, the friction welding and self-melting welding structures are adopted among the first steel pipe and the second steel pipe, the three-way joint body, the pipe seat and the right-angle joint body respectively, so that the defects of welding seam cracks and the like generated by the steel pipe assembly are effectively eliminated, high-quality welding seams and stable welding structures are obtained, the sealing and strength requirements of the welding seams of the steel pipe assembly in actual use are fully met, the welding mode is simple and convenient to operate, a special welding power supply is not needed, and the production cost is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic steel pipe assembly of the present invention;
FIG. 2 is a schematic structural view of a tube seat of the hydraulic steel tube assembly of the present invention;
FIG. 3 is a schematic structural diagram of a three-way joint body of the hydraulic steel pipe assembly of the present invention;
fig. 4 is a schematic structural diagram of the right-angle joint body of the hydraulic steel pipe assembly of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model discloses a main idea lies in: the friction welding is a pollution source which does not generate sparks, splash, smog, arc light, high frequency, harmful gas and the like to influence the environment in the welding process of the steel pipe assembly, the friction welding is direct friction thermogenesis welding of the steel pipe and the joint body, no welding material is added, no smoke is generated, and the welding seam quality of the steel pipe can be better ensured; the friction welding is an advanced welding manufacturing process with high quality, high efficiency, low consumption and cleanness; therefore, the method has huge technical potential and wide market application prospect in high and new technology industries and traditional industry departments.
The automatic argon arc welding self-melting wire-adding process utilizes the added argon as a protective medium to form a protective gas hood, so that the tungsten electrode end, the electric arc, the molten pool and the metal at high temperature do not contact with air, oxidation and harmful gas absorption can be prevented, a compact welding joint is formed, and the mechanical property is very good. In the process of welding the steel pipe assembly, the electric arc and the molten pool are good in visibility and convenient to observe, the welding process is an advanced welding manufacturing process with high quality, high efficiency and low consumption, the degree of mechanization and automation is high, the welding quality is good, the welding process is easy to operate, the welding process is not limited by the position of a weldment, the welding process can be carried out at all positions, a slag removing process and a welding wire material are not needed, and the welding process has huge technical potential and wide market application prospect in high and new technology industries and traditional industry departments.
Referring to fig. 1-4, an embodiment of the present invention provides a hydraulic steel pipe assembly, which includes a first steel pipe 1, a pipe seat 2, a three-way joint body 3, a right-angle joint body 4, and a second steel pipe 5.
Specifically, one end of a first steel pipe 1 is connected with a pipe seat 2 through friction welding; in this embodiment, the pipe seat 2 is a rotating member, and the step 6 in arc transition is arranged on the outer circumferential surface of the bottom of the pipe seat 2, and is mainly used for welding with axisymmetric parts such as the first steel pipe 1, so that the welding contact area is increased and the welding firmness is improved on the premise of ensuring the welding size.
It should be noted that, in one embodiment, the first steel pipe is a special pipe. In the application, the inside diameter of the special pipe is not changed, and the shape is S-shaped, L-shaped and the like. Before the first steel pipe 1 is manufactured, the pipe seat 2 and the straight pipe of the first steel pipe 1 which is deburred are firstly subjected to friction welding on a friction welding machine; in order to ensure that the internal flow of the first steel pipe 1 is unchanged, after the welding position is completely and naturally cooled, the internal fins are removed by using a horizontal drilling machine, and then the shape bending adjustment of the first steel pipe 1 is performed.
Further, the three-way joint body 3 comprises a first end (31) to a third end (33), the first end 31 and the second end 32 are respectively provided with a first boss 34 and a second boss 35 which protrude outwards, and the first boss 34 is connected with the other end of the first steel pipe 1 through self-fluxing welding; one side of the right-angle joint body 4 is provided with a third boss 41; one end of the second steel pipe 5 is connected with the third boss 41 through self-fluxing welding, and the other end of the second steel pipe 5 is connected with the second boss 35 through self-fluxing welding.
According to the hydraulic steel pipe assembly, the friction welding and self-melting welding structures are adopted among the first steel pipe 1 and the second steel pipe 5, the three-way joint body 3, the pipe seat 2 and the right-angle joint body 4 respectively, so that the defects of welding seam cracks and the like generated by the steel pipe assembly are effectively eliminated, high-quality welding seams and stable welding structures are obtained, the sealing and strength requirements of the welding seams of the steel pipe assembly in actual use are fully met, the welding mode is simple and convenient to operate, a special welding power supply is not needed, and the production cost is greatly reduced.
Optionally, to ensure constant internal flow of the first steel pipe 1, the inside diameter of the socket 2 is the same as the inside diameter of the first steel pipe 1. The first end 31 and the second end 32 of the three-way joint body 3 are on the same straight line, the three-way joint body 3 is provided with a through hole 36 penetrating through the first end 31 and the second end 32, and the inner diameter of the through hole 36 is the same as that of the first steel pipe 1 and that of the second steel pipe 5.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-described examples merely represent several embodiments of the present application and are not to be construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A hydraulic steel tube assembly, comprising:
one end of the first steel pipe is connected with the pipe seat through friction welding;
the three-way joint comprises a first end, a second end and a third end, wherein the first end and the second end are respectively provided with a first boss and a second boss which protrude outwards, and the first boss is connected with the other end of the first steel pipe through self-melting welding;
a right-angle joint body, one side of which is provided with a third boss;
and one end of the second steel pipe is connected with the third boss through self-fluxing welding, and the other end of the second steel pipe is connected with the second boss through self-fluxing welding.
2. A hydraulic steel tube assembly according to claim 1 wherein the internal diameter of the socket is the same as the internal diameter of the first steel tube.
3. The steel tube hydraulic assembly of claim 2, wherein the first and second ends of the tee body are aligned, and wherein the tee body has a through hole passing through the first and second ends, the through hole having an inner diameter equal to an inner diameter of the first and second steel tubes.
4. A hydraulic steel tube assembly according to any one of claims 1 to 3 wherein the outer surface of the tube socket is provided with an arcuate transition step.
5. A hydro-steel tube assembly as set forth in claim 1 wherein said first steel tube is a profile tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120642204.0U CN215112050U (en) | 2021-03-30 | 2021-03-30 | Hydraulic steel pipe assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120642204.0U CN215112050U (en) | 2021-03-30 | 2021-03-30 | Hydraulic steel pipe assembly |
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| CN215112050U true CN215112050U (en) | 2021-12-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115007973A (en) * | 2022-06-27 | 2022-09-06 | 上海空间推进研究所 | Device and method for efficiently welding communicating pipes between large-volume storage tanks |
| CN115070194A (en) * | 2022-07-22 | 2022-09-20 | 中天科技海缆股份有限公司 | Steel pipe umbilical cable underwater terminal and welding method of pipeline thereof |
| CN115007973B (en) * | 2022-06-27 | 2024-04-23 | 上海空间推进研究所 | Device and method for welding communicating pipes between large-volume storage tanks |
-
2021
- 2021-03-30 CN CN202120642204.0U patent/CN215112050U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115007973A (en) * | 2022-06-27 | 2022-09-06 | 上海空间推进研究所 | Device and method for efficiently welding communicating pipes between large-volume storage tanks |
| CN115007973B (en) * | 2022-06-27 | 2024-04-23 | 上海空间推进研究所 | Device and method for welding communicating pipes between large-volume storage tanks |
| CN115070194A (en) * | 2022-07-22 | 2022-09-20 | 中天科技海缆股份有限公司 | Steel pipe umbilical cable underwater terminal and welding method of pipeline thereof |
| CN115070194B (en) * | 2022-07-22 | 2023-12-26 | 中天科技海缆股份有限公司 | Underwater terminal of steel pipe umbilical cable and welding method of pipeline of underwater terminal |
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