CN214024025U

CN214024025U - Compressor breathing pipe welded structure

Info

Publication number: CN214024025U
Application number: CN202022829371.4U
Authority: CN
Inventors: 何景云; 戴勇军; 王世林; 张贵州; 王昱; 叶涛
Original assignee: Wuhu Abaur Mechanical & Electrical Co ltd
Current assignee: Wuhu Abaur Mechanical & Electrical Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-24
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a compressor breathing pipe welded structure, including compressor inferior valve, breathing pipe, bottom electrode and last electrode, be equipped with the pilot hole of being connected with the breathing pipe on the compressor inferior valve, be equipped with the face of weld on the breathing pipe, the internal surface and the bottom electrode contact of pilot hole department on the compressor inferior valve, the breathing pipe is connected on the electrode, and the breathing pipe is pegged graft at the pilot hole, face of weld and pilot hole cooperation. And when the air suction pipe is assembled on the lower compressor shell, the lower surface of the welding bulge is in plane contact with the outer side of the assembling hole on the lower compressor shell. The air suction pipe is welded on the lower shell of the compressor by adopting resistance welding, when welding current passes through the upper electrode, a welding bulge and a peripheral sunken table surface of the air suction pipe, under the action of the current, the peripheral sunken table surface of the assembly hole of the lower shell of the compressor generates resistance heat with the joint of the welding bulge, so that metal at the joint is melted, and a nugget is formed.

Description

Compressor breathing pipe welded structure

Technical Field

The utility model belongs to the technical field of the compressor is made, concretely relates to compressor breathing pipe welded structure.

Background

At present, the pipe fittings on the compressor are mostly in a brazing form when connected on the compressor, the pipe fittings are inserted into the inner pipe through the outer pipe, the inner pipe is provided with a convex ring to be connected with the shell, the outer pipe and the inner pipe are brazed at the insertion position, although the inner pipe adopts non-copper materials such as steel pipes and the like, certain materials are saved, the plastic of the steel pipe is obviously different from that of the copper pipe, and the hardness of the steel pipe is higher than that of the copper pipe with the same size, so that the convex ring is difficult to generate, more importantly, the insertion position of the outer pipe and the inner pipe is brazed, brazing materials are consumed, and meanwhile, waste gas and the like generated in the brazing process pollute the living environment.

The defects in the prior art are that the manufacturing of the convex ring is difficult, the welding quality is influenced, meanwhile, welding brazing materials are consumed, and more importantly, the living environment is polluted by waste gas, light, heat and the like generated in the brazing process.

SUMMERY OF THE UTILITY MODEL

To the not enough that exists among the prior art, the utility model aims to provide a compressor breathing pipe welded structure realizes reliably not having consumptive material, material-saving welding to the compressor, can be applied to and weld refrigerator compressor breathing pipe, technology pipe and blast pipe and casing.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a compressor breathing pipe welded structure which characterized in that: including compressor inferior valve, breathing pipe, bottom electrode and last electrode, be equipped with the pilot hole of being connected with the breathing pipe on the compressor inferior valve, be equipped with the face of weld on the breathing pipe, the internal surface and the bottom electrode contact of pilot hole department on the compressor inferior valve, the breathing pipe is connected on the top electrode, and the breathing pipe is pegged graft at the pilot hole, face of weld and pilot hole cooperation, and the breathing pipe is the copper pipe.

Furthermore, welded structure still includes toper direction support, and toper direction support includes unable adjustment base and guide cone, and the unable adjustment base of toper direction support passes through fastener fixed connection on the base, and the bottom electrode cup joints on the guide cone, and the bottom electrode passes through fastener fixed mounting on toper direction support.

Furthermore, the guide cone penetrates through the assembly hole, the lower compressor shell is assembled on the guide cone, and the inner side plane of the assembly hole in the lower compressor shell is in contact with the upper plane of the lower electrode.

Further, welded structure still includes the cylinder, and the stiff end of cylinder is connected perpendicularly in the frame, goes up the electrode and passes through the fastener and connect on the movable rod of cylinder, and the one end that the welding face was kept away from to the breathing pipe is pegged graft in last electrode, and what breathing pipe and last electrode can reciprocate cup joints on the direction awl, and electrode and suction pipe move down along the direction awl under the effect of cylinder, and the breathing pipe is pegged graft in the pilot hole of compressor inferior valve, welding face and pilot hole cooperation.

Furthermore, a welding bulge is arranged above the welding surface on the air suction pipe, the lower bottom surface of the upper electrode is in contact with the upper surface of the welding bulge, and when the air suction pipe is assembled on the lower compressor shell, the lower surface of the welding bulge is in plane contact with the outer side of the assembling hole on the lower compressor shell.

Furthermore, the assembly holes are of a sinking platform structure and comprise an inner convex sinking platform surface and a peripheral outer sinking platform surface, when the compressor lower shell is assembled on the conical guide support, the inner convex sinking platform surface is in contact with the upper plane of the lower electrode, and the welding bulge is in contact with the peripheral outer sinking platform surface.

Further, the air suction pipe is welded on the lower compressor shell by resistance welding, when welding current passes through the upper electrode, a welding bulge of the air suction pipe and the peripheral outer sunken table surface, under the action of the current, the peripheral outer sunken table surface of the assembly hole of the lower compressor shell and the joint of the welding bulge generate resistance heat, so that metal at the joint is melted, and a karst is formed.

Adopt the utility model discloses technical scheme's advantage does:

1. the utility model discloses a welded structure has overcome prior art steel pipe plastics poor, the high bulge loop of hardness produces the difficulty, and outer tube and inner tube grafting department are brazed, not only consume the brazing material, produce waste gas, light, heat etc. and polluted living environment's defect simultaneously at the in-process of brazing. The utility model discloses a welded structure not only is applicable to the welding of breathing pipe and compressor, still is applicable to the welding of other pipe fittings for example process pipe and blast pipe and casing welding.

2. The utility model discloses a resistance welds, it is fine and close firm to dissolve the nuclear with the formation of dissolving of the copper product of face of weld with the iron material through resistance calothermy, high quality, because the nugget is at copper pipe and casing counter bore face of weld cooperation round down, through pressurization and contact surface plastic deformation, it is little to ensure to dissolve nuclear formation internal stress deformation, a welded joint has just been accomplished in less than one minute, high production efficiency, workman working condition is good, more importantly breathing pipe and casing and resistance do not need the filling material down, energy-conservation material-conservation, the low emission requirement of production low carbon has also been satisfied, accord with green requirement.

Drawings

The invention will be described in further detail with reference to the following drawings and detailed description:

FIG. 1 is a schematic view of a welding structure of the air suction pipe of the compressor of the present invention;

FIG. 2 is a schematic sectional view of the compressor air suction pipe welding structure of the present invention;

FIG. 3 is a schematic view of the welding surface of the air suction pipe of the present invention

FIG. 4 is a schematic view of the structure of the suction pipe of the present invention;

FIG. 5 is a schematic view of the lower electrode structure of the present invention;

fig. 6 is a schematic view of the upper electrode structure of the present invention.

The labels in the above figures are respectively: 1. a compressor lower shell; 11. an assembly hole; 2. a conical guide support; 21. a fixed base; 22. a guide cone; 3. a lower electrode; 31. an upper plane; 4. an inward convex sinking table surface; 5. an upper electrode; 51. a lower bottom surface; 6. an air intake duct; 7. the periphery is sunk to the table top; 8. welding a surface; 9. welding the bulge; 14. and (4) dissolving the core.

Detailed Description

In the present invention, it is to be understood that the term "length"; "Width"; "Up"; "Down"; "front"; "Back"; "left"; "Right"; "vertical"; "horizontal"; "Top"; "bottom" "inner"; "outer"; "clockwise"; "counterclockwise"; "axial"; "planar direction"; the directional or positional relationship indicated as "circumferential" or the like is based on the directional or positional relationship shown in the drawings, and is only for convenience of description and simplified description, and does not indicate or imply that the device or element referred to must have a particular orientation; constructed and operative in a particular orientation and therefore should not be construed as limiting the invention.

As shown in fig. 1 to 6, a compressor suction pipe welding structure includes a compressor lower shell 1, a suction pipe 6, a lower electrode 3 and an upper electrode 5, a mounting hole 11 connected with the suction pipe 6 is formed in the compressor lower shell 1, a welding surface 8 is formed on the suction pipe 6, an inner surface of the mounting hole 11 on the compressor lower shell 1 contacts with the lower electrode 3, the suction pipe 6 is inserted into the upper electrode 5, the suction pipe 6 is driven to move downwards when the upper electrode 5 moves downwards, one end of the suction pipe 6 close to the welding surface 8 is inserted into the mounting hole 11, the welding surface 8 is matched with a sunken table-board 7 around the mounting hole 11, and the suction pipe 6 is a copper pipe.

Welded structure still includes toper direction support 2, and toper direction support 2 includes unable adjustment base 21 and guide cone 22, and guide cone 22 sets up the intermediate position at unable adjustment base 21 perpendicularly, and unable adjustment base 21 and guide cone 22 structure as an organic whole. The fixed base 21 of the conical guide support 2 is fixedly connected to the base through a fastener, the lower electrode 3 is sleeved on the guide cone 22, and the lower electrode 3 is fixedly mounted on the conical guide support 2 through the fastener. The guide cone 22 passes through the assembly hole 11, the compressor lower shell 1 is assembled on the guide cone 22, and the inner side plane of the assembly hole 11 on the compressor lower shell 1 is contacted with the upper plane 31 of the lower electrode 3.

Welded structure still includes the cylinder, the stiff end of cylinder is connected perpendicularly in the frame, go up electrode 5 and pass through the fastener and connect on the movable rod of cylinder, the one end that welding face 8 was kept away from to breathing pipe 6 is pegged graft in last electrode 5, the cup joint that breathing pipe 6 and last electrode 5 can reciprocate is on guide cone 22, electrode 5 and breathing pipe 6 move down along guide cone 22 under the effect of cylinder, breathing pipe 6 is pegged graft in the pilot hole 11 of compressor inferior valve 1, welding face 8 and the cooperation of pilot hole 11.

A welding bulge 9 is arranged above a welding surface 8 on the air suction pipe 6, the lower bottom surface 51 of the upper electrode 5 is in contact with the upper surface of the welding bulge 9, and when the air suction pipe 6 is assembled on the compressor lower shell 1, the lower surface of the welding bulge 9 is in plane contact with the outer side of an assembling hole 11 on the compressor lower shell 1.

The assembly hole 11 is a sinking platform structure, the assembly hole 11 comprises an inner convex sinking platform surface 4 and a peripheral outer sinking platform surface 7, when the compressor lower shell 1 is assembled on the conical guide support 2, the inner convex sinking platform surface 4 is contacted with the upper plane 31 of the lower electrode 3, and the welding bulge 9 is contacted with the peripheral outer sinking platform surface 7.

The air suction pipe 6 is welded on the compressor lower shell 1 by adopting resistance welding, when welding current passes through the upper electrode 5, the welding bulge 9 and the peripheral outward sinking table-board 7 of the air suction pipe 6, under the action of the current, the joint of the peripheral outward sinking table-board 7 of the assembly hole 11 of the compressor lower shell 1 and the welding bulge 9 generates resistance heat, so that metal at the joint is melted, and a nugget 14 is formed.

Specifically, the lower electrode 3 is fastened on a fixing base 21 of the conical guide support 2 through screws, a guide cone 22 penetrates through the lower electrode 3, an assembly hole 11 in the compressor lower shell 1 penetrates through the guide cone 22, and an inner convex sunken table surface 4 of the assembly hole 11 is tightly contacted with an upper plane 31 of the lower electrode 3. The upper electrode 5 is connected to a movable rod of the cylinder through a screw, and the upper electrode 5 can move up and down along the guide cone 22 under the driving of the cylinder.

During welding, a suction pipe to be welded is inserted into the upper electrode 5, the lower bottom surface 51 of the upper electrode 5 is contacted with a welding bulge 9 on the suction pipe, a welding button is started, the upper electrode 5 and the suction pipe 6 to be welded move downwards together and are contacted with a peripheral sunken table surface 7 of an assembly hole 11 on the lower compressor shell 1, the suction pipe 6 continues to move downwards under the action of downward pressure, and the welding bulge 9 is tightly attached to the plane of the assembly hole 11 under the action of electrode pressure; under the action of the electrified current, the welding current passes through the inverter, the upper electrode 5, the welding bulge 9 of the air suction pipe and the peripheral sunken table top 7 of the assembly hole 11 and penetrates through the thickness of the shell; the lower electrode 3 returns to the inverter again, when the current passes through the upper electrode 5, the welding bulge 9 of the air suction pipe and the step surface of the assembling hole 11, under the action of the current, the joint of the plane of the assembling hole 11 on the lower compressor shell 1 and the welding bulge 9 on the air suction pipe 6 generates resistance heat, so that metal at the joint is melted and forms a soluble core 14, the welding part is pressed to generate plastic deformation, the plastic deformation forms a plastic core to seal the soluble core to prevent the soluble metal from losing, and the conduction is smooth. After the power failure of the karst nuclei, the upper electrode continuously keeps the pressure or increases the pressure to solidify the karst metal under the pressure, and the karst nuclei are cooled to form reliable connection with compact tissues.

The utility model discloses a welded structure has overcome prior art steel pipe plastics poor, the high bulge loop of hardness produces the difficulty, and outer tube and inner tube grafting department are brazed, not only consume the brazing material, produce waste gas, light, heat etc. and polluted living environment's defect simultaneously at the in-process of brazing. The utility model discloses a welded structure not only is applicable to the welding of breathing pipe and compressor, still is applicable to the welding of other pipe fittings for example process pipe and blast pipe and casing welding.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without the technical solutions of the present invention, or the present invention can be directly applied to other occasions without the improvements, and all are within the protection scope of the present invention.

Claims

1. The utility model provides a compressor breathing pipe welded structure which characterized in that: including compressor inferior valve (1), breathing pipe (6), lower electrode (3) and upper electrode (5), be equipped with pilot hole (11) of being connected with breathing pipe (6) on compressor inferior valve (1), be equipped with face of weld (8) on breathing pipe (6), the internal surface and the lower electrode (3) contact of pilot hole (11) department on compressor inferior valve (1), breathing pipe (6) are connected on upper electrode (5), breathing pipe (6) are pegged graft at pilot hole (11), face of weld (8) and pilot hole (11) cooperation, breathing pipe (6) are the copper pipe.

2. A compressor suction pipe welding structure as set forth in claim 1, wherein: the welding structure further comprises a conical guide support (2), the conical guide support (2) comprises a fixed base (21) and a guide cone (22), the fixed base (21) of the conical guide support (2) is fixedly connected onto the base through a fastener, the lower electrode (3) is sleeved on the guide cone (22), and the lower electrode (3) is fixedly installed on the conical guide support (2) through the fastener.

3. A compressor suction pipe welding structure as set forth in claim 2, wherein: the guide cone (22) penetrates through the assembly hole (11), the compressor lower shell (1) is assembled on the guide cone (22), and the inner side plane of the assembly hole (11) in the compressor lower shell (1) is in contact with the upper plane (31) of the lower electrode (3).

4. A compressor suction pipe welding structure as set forth in claim 2 or 3, wherein: welded structure still includes the cylinder, the stiff end of cylinder is connected perpendicularly in the frame, go up electrode (5) and pass through the fastener and connect on the movable rod of cylinder, the one end that welding face (8) were kept away from in breathing pipe (6) is pegged graft in last electrode (5), breathing pipe (6) and last electrode (5) can reciprocate cup joint on guide cone (22), electrode (5) and breathing pipe (6) move down along guide cone (22) under the effect of cylinder, breathing pipe (6) are pegged graft in pilot hole (11) of compressor inferior valve (1), welding face (8) and pilot hole (11) cooperation.

5. The compressor suction pipe welding structure as set forth in claim 4, wherein: a welding bulge (9) is arranged above a welding surface (8) on the air suction pipe (6), the lower bottom surface (51) of the upper electrode (5) is in contact with the upper surface of the welding bulge (9), and when the air suction pipe (6) is assembled on the lower compressor shell (1), the lower surface of the welding bulge (9) is in planar contact with the outer side of an assembling hole (11) on the lower compressor shell (1).

6. The compressor suction pipe welding structure as set forth in claim 5, wherein: the assembly holes (11) are of a sinking platform structure, the assembly holes (11) comprise an inner convex sinking platform surface (4) and a peripheral outer sinking platform surface (7), when the compressor lower shell (1) is assembled on the conical guide support (2), the inner convex sinking platform surface (4) is in contact with an upper plane (31) of the lower electrode (3), and the welding bulge (9) is in contact with the peripheral outer sinking platform surface (7).

7. The compressor suction pipe welding structure as set forth in claim 6, wherein: the air suction pipe (6) is welded on the compressor lower shell (1) through resistance welding, when welding current passes through the upper electrode (5), a welding bulge (9) of the air suction pipe (6) and a peripheral outward sinking table board (7), under the action of the current, the joint of the peripheral outward sinking table board (7) of the assembly hole (11) of the compressor lower shell (1) and the welding bulge (9) generates resistance heat, so that metal at the joint is melted, and a nugget (14) is formed.