CN218362625U - Pressure steel pipe welding grounding construction system - Google Patents
Pressure steel pipe welding grounding construction system Download PDFInfo
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- CN218362625U CN218362625U CN202222037748.1U CN202222037748U CN218362625U CN 218362625 U CN218362625 U CN 218362625U CN 202222037748 U CN202222037748 U CN 202222037748U CN 218362625 U CN218362625 U CN 218362625U
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- pressure steel
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Abstract
The utility model provides a pressure steel pipe welding ground connection construction system belongs to steel pipe welding technical field, including base, roll frame, steel pipe, the steel pipe is laid on the roll frame, telescopic machanism is installed at the top of base, wheel components is installed at telescopic machanism's top, wheel components's inside is through coupling assembling fixedly connected with ground connection subassembly, ground connection subassembly includes the earth connection, the one end fixed mounting of earth connection is in wheel components's inside, the other end of earth connection is connected with the electric welding negative pole, the steel pipe is located wheel components's top, the utility model discloses, rational in infrastructure, welding ground connection passes through pressure steel pipe and gyro wheel rolling contact when realizing pressure steel pipe welding operation, has reduced the loss of earth connection and the installation and has dismantled the artifical loss that the earth connection takes place, ensures the reliable ground connection of pressure steel pipe when welding operation simultaneously.
Description
Technical Field
The utility model relates to a pressure steel pipe welding ground connection construction system and method belongs to pressure steel pipe welding technical field, can not restrict the utility model discloses.
Background
The pressure steel pipe is an important component of a water transmission building in hydropower station development construction at home and abroad, and mainly appears in a mode that a main pipe of the pressure steel pipe is matched with a stiffening ring. The pressure steel pipe has higher strength and sealing performance, and can effectively bear the internal water pressure. Under the condition of not increasing the wall thickness of the pressure steel pipe, the outer pipe of the pressure steel pipe is properly provided with the stiffening ring, so that the external pressure resistance of the pressure steel pipe can be effectively improved, and the economical efficiency is high. The pressure steel pipe can also be matched with concrete lining construction to jointly bear external pressure, so that the stability and the water permeability resistance of a lining structure are further improved, the service life is prolonged, and the shape of a cavity is more attractive. The pressure steel pipe not only has the excellent performance, but also has the characteristics of high plasticity, complex and various structural forms and the like, and is increasingly applied to various engineering projects.
With the wide application of the pressure steel pipe, the manufacturing and installation engineering quantity of the pressure steel pipe is also larger and larger. Traditional mode down force steel pipe indulges, need place force steel pipe in on the roll stand and carry out the station conversion when the girth welding, need carry out ground connection with force steel pipe when welding operation and connect, the most common ground connection mode of force steel pipe is to utilize special fixture snap-on to fix the earth connection at force steel pipe mouth of pipe position, when force steel pipe work rotates, the earth connection also rotates thereupon, it is long-lived, the earth connection will take place to twist up or damage, need regularly to change, and along with the increase of steel pipe diameter, the earth connection of needs is just longer, pull back and forth at the rotation in-process, the potential safety hazard is great. In long-term construction operation, common construction units are used to traditional operation and often neglect innovation and improvement of a butt joint type, so that the construction cost is increased to a certain degree, meanwhile, great hidden danger is brought to the safety of field construction operation, and the construction management requirement of modern engineering cannot be met.
SUMMERY OF THE UTILITY MODEL
In order to solve the easy emergence of earth connection in the construction operation and twist up or damage the problem, the utility model provides a pressure steel pipe welding ground connection construction system, including base, rolling frame, pressure steel pipe lays on rolling frame, telescopic machanism is installed at the top of base, wheel components is installed at telescopic machanism's top, wheel components's inside is through coupling assembling fixedly connected with ground connection subassembly, ground connection subassembly includes the earth connection, the one end fixed mounting of earth connection is in wheel components's inside, the other end of earth connection is connected with the electric welding negative pole, pressure steel pipe is located wheel components's top.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the base includes bed plate, rag bolt, the inside set up threaded hole of bed plate, the quantity of screw hole exists a plurality ofly, rag bolt passes screw hole and ground fixed connection, rag bolt's quantity is a plurality ofly.
As a further description of the above technical solution:
telescopic machanism includes guide bar, expanding spring, sleeve, the upper surface at the bed plate is installed to the guide bar, the outside cover of guide bar is equipped with expanding spring, the top cover of guide bar is equipped with the sleeve, telescopic bottom fixedly connected with flange, the lower surface of flange is laminated with expanding spring's top mutually, the last fixed surface of bed plate is connected with the urceolus, guide bar, expanding spring, sleeve all are located the inside of urceolus.
As a further description of the above technical solution:
the roller assembly comprises a roller support, a roller shaft and a roller, the roller support is installed at the top of the sleeve, the roller is movably connected inside the roller support through the roller shaft, a spacer bush is sleeved on the outer surface of the roller shaft, and the spacer bush is located between the roller support and the roller.
As a further description of the above technical solution:
coupling assembling includes fixing bolt, the fixed orifices has been seted up to the inside of gyro wheel support, fixing bolt installs in the inside of fixed orifices, the earth connection passes through fixing bolt fixed mounting on the gyro wheel support.
A pressure steel pipe welding grounding construction method comprises the following steps:
installing and debugging the pressure steel pipe welding grounding construction system;
s1: hoisting the penstock to a preset position on a rolling frame;
s2: under the action of the rolling frame, the pressure steel pipe rotates along with the rolling frame, so that welding construction operation is convenient to carry out;
s3: the pressure steel pipe is in contact with the roller and rotates along with the rotation of the pressure steel pipe, and the telescopic mechanism can ensure that the roller is in good contact with the surface of the pressure steel pipe;
s4: the pressure steel pipe passes through the roller, the roller shaft, the roller bracket and the grounding assembly and then reaches the grounding body, so that the welding grounding of the pressure steel pipe is realized.
The utility model has the advantages that: the utility model provides a pressure steel pipe welding grounding construction system and a method, the system comprises a base and a telescopic mechanism fixed on the base; the telescopic mechanism is provided with a roller assembly; the roller assemblies and the grounding wire are connected and fixed through the fixing clamp plate; the pressure steel pipe is arranged on the rolling frame and is arranged above the roller component. In the pressure steel pipe welding grounding construction system and method provided by the application, the welding grounding of the pressure steel pipe during rotation on the rolling frame can be realized through the matching of the base, the telescopic mechanism, the roller assemblies, the grounding wire, the fixed clamping plate, the pressure steel pipe, the rolling frame and the like, the phenomenon that the grounding wire is directly fixed on the pressure steel pipe in a traditional mode and is twisted or damaged due to long-term rotation of the pressure steel pipe is avoided, and the phenomenon that the grounding wire is required to be reinstalled and removed once when each group of pressure steel pipe welding operation is completed is avoided. On the other hand, the use of earth connection has been reduced, the earth connection only need be connected to the pressure steel pipe welding ground construction system that this application embodiment provided in on the gyro wheel support can, and need not to carry out repeated dismouting in the work progress. The construction system can be suitable for the welding operation of the pressure steel pipes with different diameters, is also suitable for the welding operation of similar moving workpieces through adjusting the installation station, and has wide application range. The construction system has detachability, and can be continuously used in the next stage of engineering after being disassembled after the engineering is finished.
Drawings
In order to more clearly show a pressure steel pipe welding grounding construction system and a method, the following drawings are shown;
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a sectional view of the internal structure of the present invention;
fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention;
fig. 4 is a schematic structural view of the present invention in use.
Wherein the reference numbers in the figures;
1. a base; 101. a base plate; 102. anchor bolts; 2. a telescoping mechanism; 201. a guide bar; 202. a tension spring; 203. A sleeve; 204. a flange; 205. an outer cylinder; 3. a roller assembly; 301. a roller bracket; 302. a roller shaft; 303. a spacer sleeve; 304. a roller; 4. a ground component; 401. a ground line; 5. a connecting assembly; 501. fixing the bolt; 6. a rolling frame; 7. and (5) steel pipes.
Detailed Description
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, which includes a base 1, a rolling frame 6, a steel pipe 7, the steel pipe 7 is installed on the rolling frame 6, a telescopic mechanism 2 is installed at the top of the base 1, when the device is under a large pressure, the height of the device is lowered through the telescopic mechanism 2, a roller assembly 3 is installed at the top of the telescopic mechanism 2, so that the steel pipe under pressure is reliably contacted with the roller, a grounding assembly 4 is fixedly connected to the inside of the roller assembly 3 through a connecting assembly 5, the grounding assembly 4 includes a grounding wire 401, the connecting assembly 5 includes a fixing bolt 501, a fixing hole is opened in the inside of the roller bracket 301, the fixing bolt 501 is installed in the fixing hole, the grounding wire 401 is fixedly installed on the roller bracket 301 through the fixing bolt 501, one end of the grounding wire 401 is provided with an annular connecting sheet, the annular connecting sheet is sleeved on the fixing bolt 501 and then is fixed by a nut, so that one end of the grounding wire 401 can be fixedly installed in the inside of the roller assembly 3, the grounding wire 401 is connected with a negative electrode of an electric welder, when the device is under the pressure of the steel pipe, the steel pipe and the device is reliably connected with the electric welder, thereby ensuring that the steel pipe to form a stable loop above the roller assembly 3, and the steel pipe 7.
The telescopic mechanism 2 comprises a guide rod 201, a telescopic spring 202 and a sleeve 203, wherein the guide rod 201 is installed on the upper surface of the base plate 101, the guide rod 201 is fixed on the base plate 101 through welding, the telescopic spring 202 is sleeved on the outer side of the guide rod 201, the sleeve 203 is sleeved on the top of the guide rod 201, the telescopic spring 202 is selected according to the diameter of the guide rod 201, the diameter of the telescopic spring 202 is slightly larger than the outer diameter of the guide rod 201 by about 5-10 mm, the telescopic spring can be directly sleeved on the guide rod 201, and the telescopic spring 202 is required to be good in elasticity, fatigue resistance and high in strength. Sleeve 203 installs in expanding spring 202 top and overlaps on the guide bar, sleeve 203 diameter slightly is greater than about 4 ~ 5mm of guide bar diameter, be responsible for transmitting the 7 effort of pressure steel pipe for expanding spring 202 and base 1, until acting on ground, the bottom fixedly connected with flange 204 of sleeve 203, the lower surface of flange 204 is laminated mutually with expanding spring 202's top, make installing on expanding spring 202 that sleeve 203 can be better through flange 204, the last fixed surface of bed plate 101 is connected with urceolus 205, guide bar 201, expanding spring 202, sleeve 203 all is located the inside of urceolus 205, can protect the inside subassembly of telescopic machanism 2 through urceolus 205.
The roller assembly 3 comprises a roller support 301, a roller shaft 302 and a roller 304, the roller support 301 is installed at the top of the sleeve 203, the bottom plate of the roller support 301 is connected with the sleeve 203 in a welding mode, the roller 304 is movably connected inside the roller support 301 through the roller shaft 302, a spacer 303 is sleeved on the outer surface of the roller shaft 302, the spacer 303 is located between the roller support 301 and the roller 304, the roller 304 is in contact with the pressure steel pipe 7, the roller 304 is connected with the roller shaft 302, the roller shaft 302 is installed on the roller support 301, and the grounding wire 4 is fixed on the roller support 301 through a connecting assembly 5, so that the pressure steel pipe 7 is connected with the grounding wire. The roller 304, the roller shaft 302, and the roller holder 301 are made of copper alloy to have good electrical conductivity. Meanwhile, in order to prevent the rollers 304 from being displaced or interfering with the roller holder 301 when rotating together with the penstock 7, spacers 303 are respectively installed on the roller shafts 302 on both sides of the rollers 304.
Further, because the penstock 7 is in rolling contact with the roller 304, and the penstock 7 has a certain instability when rotating relative to the roller 304, in order to improve the grounding effect and reliability of the embodiment of the present application in actual operation, 1 or more sets of penstock welding grounding construction systems provided by the embodiment of the present application may be added at other positions to improve the reliability thereof, specifically according to actual conditions.
Further, in order to ensure that the sleeve 203 in the telescopic mechanism 2 smoothly realizes the telescopic function under the action of the pressure steel pipe 7 and the spring 202, holes are formed in the top of the sleeve 203 and the center of the bottom plate of the roller bracket 301, so that the inside and the outside of the sleeve 203 are communicated, and the phenomenon that the sleeve 203 cannot normally work due to the inside and outside pressure difference during work is prevented. In order to reduce friction between the sleeve 203 and the guide rod 201, lubricating oil may be applied to the outside of the guide rod 201.
Further, in order to ensure that the steel pipe 7 is reliably connected with the rollers 304 in the rotating process, the surface of the pressure steel pipe is cleaned before the pressure steel pipe hoisting operation, and impurities and the like on the surface are removed.
Based on the pressure steel pipe welding grounding construction system provided by the embodiment of the application, the embodiment of the application provides a pressure steel pipe welding grounding construction method, and the method comprises the following steps:
s01: and (5) installing and debugging the pressure steel pipe welding grounding construction system.
The base 1, the telescopic mechanism 2, the roller assemblies 3, the grounding assemblies 4 and the connecting assemblies 5 are manufactured and installed according to the design drawing requirements, the running conditions of the telescopic mechanism 2 and the roller assemblies 3 are debugged, and the normal running of each part is ensured.
S02: hoisting the pressure steel pipe 7 to the rolling frame 6, and debugging the steel pipe 7 and the roller 304.
And hoisting the assembled pressure steel pipe 7 to the rolling frame 6 according to a preset position, and checking the contact condition of the pressure steel pipe 7 and the roller 304. Under the condition that the contact between the pressure steel pipe 7 and the roller 304 is good and the pipe walls of the roller 304 and the pressure steel pipe 7 are in a stressed state, the rolling frame 6 is started to drive the pressure steel pipe 7 to rotate, and the pressure steel pipe welding grounding construction system provided by the embodiment of the debugging application is carried out until the roller 304 and the pressure steel pipe 7 rotate relatively.
S03: and connecting the grounding assembly 4, checking and testing the grounding effect, and carrying out welding operation.
And fixing the grounding assembly 4 to the roller bracket 301, starting the rolling frame 6 to rotate the pressure steel pipe 7, and testing the grounding resistance value change of the pressure steel pipe in the rotation process of the pressure steel pipe by using a grounding resistance tester to ensure that the change range of the grounding resistance value meets the grounding requirement of the pressure steel pipe welding operation. After the adjustment device is adjusted, under the condition of ensuring reliable grounding, welding operation is carried out on the penstock 7, the device is adjusted and tested according to actual operation effects, and the penstock welding grounding construction system provided by the embodiment of the application has good grounding effect until the whole operation process is finished
Principle of operation
In the pressure steel pipe welding grounding construction system and method provided by the embodiment of the application, the grounding of the pressure steel pipe 7 during rotation on the rolling frame 6 is realized through the matching of the base 1, the telescopic mechanism 2, the roller assemblies 3, the grounding assemblies 4, the connecting assembly 5 and the like, the phenomenon that the grounding wire is damaged or twisted due to long-term pressure steel pipe rotation when the grounding assembly 4 is directly fixed on the pressure steel pipe 7 in a traditional mode is avoided, and the phenomenon that the grounding wire is required to be installed again and removed once when each group of pressure steel pipe welding operation is completed is avoided. On the other hand, the use of earth connection has been reduced, the earth connection only need be connected to the pressure steel pipe welding ground construction system that this application embodiment provided in on the gyro wheel support can, and need not to carry out repeated dismouting in the work progress. The construction system can be suitable for the welding operation of the pressure steel pipes with different diameters, is also suitable for the welding operation of a moving workpiece through adjusting the installation station, and has wide application range. The construction system has detachability, and can be continuously used in the next stage of engineering after being disassembled after the engineering is finished.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (5)
1. The utility model provides a pressure steel pipe welding ground connection construction system, includes base (1), rolling frame (6), steel pipe (7), place on rolling frame (6) steel pipe (7), its characterized in that: telescopic machanism (2) are installed at the top of base (1), wheel components (3) are installed at the top of telescopic machanism (2), coupling assembling (5) fixedly connected with ground connection subassembly (4) are passed through to the inside of wheel components (3), ground connection subassembly (4) are including earth connection (401), the one end fixed mounting of earth connection (401) is in the inside of wheel components (3), the other end of earth connection (401) is connected with the electric welding negative pole, steel pipe (7) are located the top of wheel components (3).
2. The pressure steel pipe welding ground construction system according to claim 1, characterized in that: the base (1) comprises a base plate (101) and foundation bolts (102), threaded holes are formed in the base plate (101), the number of the threaded holes is multiple, the foundation bolts (102) penetrate through the threaded holes to be fixedly connected with the ground, and the number of the foundation bolts (102) is multiple.
3. The pressure steel pipe welding ground construction system according to claim 2, characterized in that: telescopic machanism (2) are including guide bar (201), expanding spring (202), sleeve (203), the upper surface at bed plate (101) is installed in guide bar (201), the outside cover of guide bar (201) is equipped with expanding spring (202), the top cover of guide bar (201) is equipped with sleeve (203), the bottom fixedly connected with flange (204) of sleeve (203), the lower surface of flange (204) is laminated with the top of expanding spring (202) mutually, the last fixed surface of bed plate (101) is connected with urceolus (205), guide bar (201), expanding spring (202), sleeve (203) all are located the inside of urceolus (205).
4. The pressure steel pipe welding ground construction system according to claim 3, characterized in that: roller subassembly (3) include roller bracket (301), roller shaft (302), gyro wheel (304), the top at sleeve (203) is installed in roller bracket (301), there are gyro wheel (304) in the inside of roller bracket (301) through roller shaft (302) swing joint, the surface cover of roller shaft (302) is equipped with spacer (303), spacer (303) are located between roller bracket (301) and gyro wheel (304).
5. The pressure steel pipe welding ground construction system according to claim 4, wherein: coupling assembling (5) include fixing bolt (501), the fixed orifices has been seted up to the inside of gyro wheel support (301), fixing bolt (501) are installed in the inside of fixed orifices, earth connection (401) are through fixing bolt (501) fixed mounting on gyro wheel support (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222037748.1U CN218362625U (en) | 2022-08-03 | 2022-08-03 | Pressure steel pipe welding grounding construction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222037748.1U CN218362625U (en) | 2022-08-03 | 2022-08-03 | Pressure steel pipe welding grounding construction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218362625U true CN218362625U (en) | 2023-01-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222037748.1U Active CN218362625U (en) | 2022-08-03 | 2022-08-03 | Pressure steel pipe welding grounding construction system |
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| Country | Link |
|---|---|
| CN (1) | CN218362625U (en) |
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2022
- 2022-08-03 CN CN202222037748.1U patent/CN218362625U/en active Active
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