CN2137578Y - Anti-twisted earthing connector - Google Patents
Anti-twisted earthing connector Download PDFInfo
- Publication number
- CN2137578Y CN2137578Y CN 92221251 CN92221251U CN2137578Y CN 2137578 Y CN2137578 Y CN 2137578Y CN 92221251 CN92221251 CN 92221251 CN 92221251 U CN92221251 U CN 92221251U CN 2137578 Y CN2137578 Y CN 2137578Y
- Authority
- CN
- China
- Prior art keywords
- electrical carbon
- earthing
- grounding device
- lap guard
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Arc Welding In General (AREA)
Abstract
The utility model relates to an anti-twisted earthing connector which is used for the girth welding of a rotary body. The utility model is composed of a fixing device and earthing cables. The fixing device is connected with a metal conducting shaft; the conducting plate is arranged on the conducting shaft; axially movable electrical carbons which are dynamic contacted with the conducting plate are arranged on both sides of the conducting plate. Clearance fit is formed between the electrical carbons and the conducting shaft, the electrical carbons are connected with a metal housing via a conducting wire; an earthing handle which is connected with earthing cables is arranged on the housing. The anti-twisted earthing connector of the utility model has the advantages of anti-wind earthing cables, reliable earthing, homogeneous contact, stable arc voltage during welding, fine weld quality, etc. and can be used for the rotary body girth welding, carbon arc-air gouging, girth weld repair welding, etc.
Description
The utility model relates to a kind of lap guard grounding device that is used for the revolving body girth welding.
At present, the girth welding earthing or grounding means is to adopt dead earth formula or simple and easy lap guard ground connection formula.Dead earth cable type device is made up of C type chuck and earth cable, earth cable directly is fixed on the revolving body by C type chuck, form the welding current loop, when the revolving body girth welding, because the rotation of revolving body, drive C type chuck and earth cable and rotate simultaneously, will cause that like this earth cable twines, fracture.When especially the heavy wall revolving body welded, the winding of earth cable was more outstanding, not only influences carrying out continuously of welding job, and has shortened the service life of earth cable.Another kind of simple and easy lap guard ground connection formula device is that metal bar is fixed on the revolving body, and earth cable is fixed on the becket, and becket is enclosed within on the metal bar.This mode, though solved the winding problem of earth cable,, becket is wire with metal bar, point-like contacts, even interruption is arranged, and causes arc voltage fluctuation, even forms arc voltage and fall, and influences welding quality, easily causes weld seam bubble, slag inclusion.Because becket and metal bar contact area are little, easily produce electric spark, contact resistance is big, and power consumption is big, causes that the becket temperature raises, and makes the fusing of earth cable rubber surface, shortens its service life.
The purpose of this utility model provides the lap guard grounding device that a kind of earth cable does not twine, contacts evenly, ground connection is reliable, welding arc voltage is stable, welding quality is good.
The utility model is achieved in that this lap guard grounding device comprises fixture, earth cable, be characterized in that fixture connects the metallic conduction axle, the metallic conduction dish is arranged on the conductive shaft, the conductive plate two sides have with it and are the dynamic axially movable electrical carbon that contacts, it between electrical carbon and the conductive shaft matched in clearance, electrical carbon links to each other with metal shell through lead, and the ground connection handle is arranged on the housing, and the ground connection handle links to each other with earth cable.Its operation principle is: when revolving body rotates, drive fixture, conductive shaft and conductive plate and rotate simultaneously, because conductive plate is dynamic with electrical carbon and contacts, conductive shaft and electrical carbon are matched in clearance, electrical carbon can move axially with respect to housing but not rotate, so avoided the winding of earth cable.Welding current on the revolving body forms the welding current loop through fixture, conductive shaft, conductive plate, electrical carbon, lead, housing, ground connection handle and earth cable.In addition, because the metallic conduction dish is dynamic face with electrical carbon and contacts, so welding arc voltage is stable, welding quality is good.
The supporting insulation sleeve is equipped with at conductive shaft of the present utility model two ends, and its effect is not make the conductive shaft move left and right.
Between electrical carbon of the present utility model and the insulation sleeve spring is housed, electrical carbon remains good the contact with conductive plate under the effect of spring force.
The inner outer rim of insulation sleeve of the present utility model has circular protrusion, moves radially to prevent spring.
Housing of the present utility model is provided with the electrical carbon anti-turn screw, and axial anti-rotation groove is arranged on the electrical carbon, and the end of anti-turn screw is positioned at anti-rotation groove, and anti-turn screw and anti-rotation groove do not rotate electrical carbon with the rotation of conductive shaft, but can move axially.
Housing of the present utility model is made up of cylindrical shell and end cap, and electrical carbon is connected with the cylindrical shell end through lead, and lead links to each other electrical carbon with cylindrical shell, forms the loop of welding current.
Electrical carbon of the present utility model is the ring-type electrical carbon, and the contact-making surface of ring-type electrical carbon and conductive plate is big, conducts electricity very well, and is easy for installation.
Fixture of the present utility model is a C type chuck.
The utility model compared with prior art has following obvious advantage: the winding problem of earth cable when having solved the revolving body girth welding fully, and prolonged service life of earth cable, and make revolving body can do continuous welding, improved production efficiency.In addition, conductive plate of the present utility model is dynamic face with electrical carbon and contacts, ground connection is reliable, contact is even, and arc voltage is stable during welding, has guaranteed welding quality, overcome that earth cable easily twines in the prior art, arc voltage instability during welding, poor welding quality easily forms defectives such as welding pore, slag inclusion.
The utility model mainly is applicable to the revolving body girth welding, also can be used for the spot welding of revolving body circumferential weld, carbon arc air gouging and circumferential weld and reprocesses repair welding etc.
Now in conjunction with the accompanying drawings an embodiment of the present utility model is specified.
Accompanying drawing is a structure chart of the present utility model.
Number in the figure is represented: 1-fixture, 2-metallic conduction axle, 3-spring, the 4-electrical carbon, 5-anti-rotation groove, 6-metallic conduction dish, the 7-anti-turn screw, 8-circular protrusion, 9-housing, the 9-a-end cap, the 9-b-cylindrical shell, 10-supports insulation sleeve, 11-earth cable, 12-ground connection handle, the 13-lead.
A most preferred embodiment of the present utility model is: referring to accompanying drawing.
This lap guard grounding device comprises fixture (1), earth cable (11); Fixture (1) connects metallic conduction axle (2), metallic conduction dish (6) is arranged on the conductive shaft (2), conductive plate (6) two sides have with its be dynamic contact can axially movable electrical carbon (4), between electrical carbon (4) and the conductive shaft (2) is matched in clearance, electrical carbon (4) links to each other with metal shell (9) through lead (13), ground connection handle (12) is arranged on the housing (9), and ground connection handle (12) links to each other with earth cable (11); Supporting insulation sleeve (10) is equipped with at conductive shaft (2) two ends; Between electrical carbon (4) and the insulation sleeve (10) spring (3) is housed; The inner outer rim of insulation sleeve (10) has the circular protrusion (8) that prevents spring and move radially; Housing (9) is provided with anti-turn screw (7), and axial anti-rotation groove (5) is arranged on the electrical carbon (4), and the end of anti-turn screw (7) is positioned at anti-rotation groove (5); Housing (9) is made up of cylindrical shell (9-b) and end cap (9-a); Electrical carbon (4) links to each other with cylindrical shell (9-b) end through lead (13); Electrical carbon (4) is the ring-type electrical carbon; Fixture (1) is a C type chuck.
Claims (8)
1, a kind of lap guard grounding device that is used for the revolving body girth welding, comprise fixture [1], earth cable [11], it is characterized in that: fixture [1] connects metallic conduction axle [2], metallic conduction dish [6] is arranged on the conductive shaft [2], conductive plate [6] two sides have with its be dynamic contact can axially movable electrical carbon [4], between electrical carbon [4] and the conductive shaft [2] is matched in clearance, electrical carbon [4] links to each other with metal shell [9] through lead [13], ground connection handle [12] is arranged on the housing [9], and ground connection handle [12] links to each other with earth cable [11].
2, lap guard grounding device as claimed in claim 1, it is characterized in that conductive shaft (2) two ends be equipped with the supporting insulation sleeve (10).
3, lap guard grounding device as claimed in claim 1 is characterized in that between electrical carbon (4) and the insulation sleeve (10) spring (3) being housed.
4,, it is characterized in that the inner outer rim of insulation sleeve (10) has the circular protrusion (8) that prevents that spring (3) from moving radially as claim 2 or 3 described lap guard grounding devices.
5, lap guard grounding device as claimed in claim 1 is characterized in that housing (9) is provided with electrical carbon anti-turn screw (7), and axial anti-rotation groove (5) is arranged on the electrical carbon (4), and the end of anti-turn screw (7) is positioned at anti-rotation groove (5).
6, lap guard grounding device as claimed in claim 1 is characterized in that housing (9) is made up of cylindrical shell (9-b) and end cap (9-a), and electrical carbon (4) links to each other with cylindrical shell (9-b) end through lead (13).
7, lap guard grounding device as claimed in claim 1 is characterized in that electrical carbon (4) is the ring-type electrical carbon.
8, lap guard grounding device as claimed in claim 1 is characterized in that fixture (1) is C type chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221251 CN2137578Y (en) | 1992-08-31 | 1992-08-31 | Anti-twisted earthing connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92221251 CN2137578Y (en) | 1992-08-31 | 1992-08-31 | Anti-twisted earthing connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2137578Y true CN2137578Y (en) | 1993-07-07 |
Family
ID=33768085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92221251 Expired - Fee Related CN2137578Y (en) | 1992-08-31 | 1992-08-31 | Anti-twisted earthing connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2137578Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839229A (en) * | 2021-10-09 | 2021-12-24 | 中国水电四局（兰州）机械装备有限公司 | Rotary welding grounding device |
-
1992
- 1992-08-31 CN CN 92221251 patent/CN2137578Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113839229A (en) * | 2021-10-09 | 2021-12-24 | 中国水电四局（兰州）机械装备有限公司 | Rotary welding grounding device |
| CN113839229B (en) * | 2021-10-09 | 2024-03-01 | 中国水电四局（兰州）机械装备有限公司 | Rotary welding grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |