CN202985500U - Three-jaw tool for twisting narrow-side head of pressure container - Google Patents
Three-jaw tool for twisting narrow-side head of pressure container Download PDFInfo
- Publication number
- CN202985500U CN202985500U CN 201220735105 CN201220735105U CN202985500U CN 202985500 U CN202985500 U CN 202985500U CN 201220735105 CN201220735105 CN 201220735105 CN 201220735105 U CN201220735105 U CN 201220735105U CN 202985500 U CN202985500 U CN 202985500U
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- CN
- China
- Prior art keywords
- helical pitch
- lead
- piece
- bar
- frame
- 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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Abstract
The utility model relates to a three-jaw tool for twisting a narrow-side head of a pressure container, and belongs to the field of part assembly. The twisting tool comprises lead rods, lead frames, screws, lead blocks and a support barrel, wherein the three lead frames are uniformly distributed and fixed on the same circumference of the support barrel; the open ends of the three lead frames are inward; inner cavities of the lead frames are communicated with an inner cavity of the support barrel; the lead blocks are placed into the inner cavities of the lead frames; the ends of the lead blocks, which are provided with arc surfaces, are downward; the lead rods pass through threaded holes of the lead frames; lead block connectors of the lead rods are inserted into lead rod connecting holes in the outer ends of the lead blocks; the screws are inserted into axial locking holes of the lead locks, and the front ends of the screws are inserted into annular locking grooves of the lead block connectors of the lead rods, so that the lead rods and the lead blocks are axially positioned; and the middle sections of the lead rods are in threaded connection with through holes in the outer ends of the lead frames. By the twisting tool, friction force during assembly and disassembly is increased, the using safety of the pressure container is ensured, and assembly and disassembly processes are simplified.
Description
Technical field
The utility model relates to a kind of three-jaw instrument that screws up the narrow banding head of pressure vessel, belongs to parts and assembles the field.
Background technology
A kind of special pressure vessel, because the front head of this pressure vessel is very narrow, the face that screws up that uses only has 25mm wide, when assembling, too little as spanner (wide 60mm) and the contact-making surface of front head of liner with ox-hide, frictional force is inadequate, and front head and pressure vessel body can't reliably be tightened, and can not guarantee the use safety of pressure vessel.In addition, when pressure vessel overhauls, also need the front head of pressure vessel is pulled down, because frictional force is inadequate, with knocking or other way dismounting, often end socket is destroyed.
The utility model content
The purpose of this utility model is to screw up instrument when assembling certain pressure vessel parts in order to solve tradition, the shortcoming that frictional force is inadequate, and a kind of three-jaw instrument that screws up the narrow banding head of pressure vessel is provided.
The purpose of this utility model is achieved through the following technical solutions:
A kind of three-jaw instrument that screws up the narrow banding head of pressure vessel of the present utility model comprises helical pitch bar, helical pitch frame, screw, helical pitch piece, support tube;
The front end of helical pitch bar is processed with helical pitch piece connector, and the sidewall of helical pitch piece connector is processed with the annular lock groove, and the stage casing of helical pitch bar is processed with external screw thread, and the back segment of helical pitch bar is processed with the spanner groove;
The helical pitch frame is the tubular construction of an end opening, the sealing one end end face machining screw through hole of helical pitch frame tubular construction;
The front end of helical pitch piece is processed with the cambered surface that matches with part profile to be screwed up, and the rear end of helical pitch piece is processed with the helical pitch lever attachment hole, and the helical pitch lever attachment hole of helical pitch piece radially outwards has axial lock and decides the hole;
3 helical pitch framves are uniform to be fixed on the same circumference of support tube, and opening one end of 3 helical pitch framves arranges inwardly, and the inner chamber of helical pitch frame is communicated with the inner chamber of support tube; The helical pitch piece is placed on the inner chamber of helical pitch frame, and an end of helical pitch piece processing cambered surface down; The helical pitch bar passes the screwed hole of helical pitch frame, and the helical pitch piece connector of helical pitch bar is inserted in the helical pitch lever attachment hole of helical pitch piece outer end, by insert screw in the axial lock hole of helical pitch piece, the front end of screw is inserted in the annular lock groove of helical pitch piece connector of helical pitch bar, realize the axial location between helical pitch bar and helical pitch piece, the stage casing of helical pitch bar is connected with the outer end through hole whorl of helical pitch frame.Support tube and helical pitch frame junction arrange reinforcement, strengthen the working strength of the work that screws up.
The course of work
During use, screwing up tool cover on the position to be screwed up of pressure vessel, rotate respectively three helical pitch bars with common wrench, by the stage casing of helical pitch bar and the outer end through hole whorl structure of helical pitch frame, make the cambered surface of helical pitch piece front end press part to be screwed up, provide enough frictional force between instrument and part to be screwed up for screwing up, thereby realize reliable assembling or dismounting.
Beneficial effect
A kind of three-jaw instrument that screws up the narrow banding head of pressure vessel of the present utility model, utilize the mutual transforming relationship of torsion, pressure, pressure, make the liner of spanner without ox-hide, the method that directly contacts with two metal coverings, increase the frictional force between end socket and instrument, thoroughly solved the Assembly And Disassembly problem of end socket and pressure vessel body.The one, guaranteed the use safety of pressure vessel.The 2nd, installation and removal become very simple.
Description of drawings
Fig. 1 is the structural representation that the utility model screws up instrument;
Fig. 2 is the structural representation that the utility model screws up helical pitch bar in instrument;
Wherein, 1-helical pitch bar; 2-helical pitch frame; The 3-screw; 4-helical pitch piece; The 5-support tube; The 6-reinforcement; 7-helical pitch piece connector; 8-helical pitch bar thread segment; 9-spanner groove.
The specific embodiment
Below in conjunction with accompanying drawing, preferred example of the present utility model is further described:
A kind of three-jaw instrument that screws up the narrow banding head of pressure vessel of the present utility model comprises helical pitch bar 1, helical pitch frame 2, screw 3, helical pitch piece 4, support tube 5;
The front end of helical pitch bar 1 is processed with helical pitch piece connector, and the sidewall of helical pitch piece connector 7 is processed with the annular lock groove, and the stage casing of helical pitch bar 1 is processed with external screw thread, and the back segment of helical pitch bar 1 is processed with spanner groove 9;
Helical pitch frame 2 is the tubular construction of an end opening, the sealing one end end face machining screw through hole of helical pitch frame 2 tubular constructions;
The front end of helical pitch piece 4 is processed with the cambered surface that matches with part profile to be screwed up, and the rear end of helical pitch piece 4 is processed with the helical pitch lever attachment hole, and the helical pitch lever attachment hole of helical pitch piece 4 radially outwards has axial lock and decides the hole;
3 helical pitch framves are uniform to be fixed on the same circumference of support tube 5, and opening one end of 3 helical pitch framves arranges inwardly, and the inner chamber of helical pitch frame 2 is communicated with the inner chamber of support tube 5; Helical pitch piece 4 is placed on the inner chamber of helical pitch frame 2, and an end of helical pitch piece 4 processing cambered surfaces down; Helical pitch bar 1 passes the screwed hole of helical pitch frame 2, and the helical pitch piece connector 7 of helical pitch bar 1 is inserted in the helical pitch lever attachment hole of helical pitch piece 4 outer ends, by insert screw 3 in the axial lock hole of helical pitch piece 4, the front end of screw 3 is inserted in the annular lock groove of helical pitch piece connector 7 of helical pitch bar 1, realize the axial location between helical pitch bar 1 and helical pitch piece 4, the stage casing of helical pitch bar 1 is connected with the outer end through hole whorl of helical pitch frame 2.
Support tube 5 and helical pitch frame 2 junctions arrange reinforcement 6, strengthen the working strength of the work that screws up.
The course of work
During use, screwing up tool cover on the position to be screwed up of pressure vessel, rotate respectively three helical pitch bars with common wrench, by the stage casing of helical pitch bar 1 and the outer end through hole whorl structure of helical pitch frame 2, make the cambered surface of helical pitch piece 4 front ends press part to be screwed up, provide enough frictional force between instrument and part to be screwed up for screwing up, thereby realize reliable assembling or dismounting.
Claims (2)
1. a three-jaw instrument that screws up the narrow banding head of pressure vessel, is characterized in that: comprise helical pitch bar, helical pitch frame, screw, helical pitch piece, support tube;
The front end of helical pitch bar is processed with helical pitch piece connector, and the sidewall of helical pitch piece connector is processed with the annular lock groove, and the stage casing of helical pitch bar is processed with external screw thread, and the back segment of helical pitch bar is processed with the spanner groove;
The helical pitch frame is the tubular construction of an end opening, the sealing one end end face machining screw through hole of helical pitch frame tubular construction;
The front end of helical pitch piece is processed with the cambered surface that matches with part profile to be screwed up, and the rear end of helical pitch piece is processed with the helical pitch lever attachment hole, and the helical pitch lever attachment hole of helical pitch piece radially outwards has axial lock and decides the hole;
3 helical pitch framves are uniform to be fixed on the same circumference of support tube, and opening one end of 3 helical pitch framves arranges inwardly, and the inner chamber of helical pitch frame is communicated with the inner chamber of support tube; The helical pitch piece is placed on the inner chamber of helical pitch frame, and an end of helical pitch piece processing cambered surface down; The helical pitch bar passes the screwed hole of helical pitch frame, and the helical pitch piece connector of helical pitch bar is inserted in the helical pitch lever attachment hole of helical pitch piece outer end, by insert screw in the axial lock hole of helical pitch piece, the front end of screw is inserted in the annular lock groove of helical pitch piece connector of helical pitch bar, realize the axial location between helical pitch bar and helical pitch piece, the stage casing of helical pitch bar is connected with the outer end through hole whorl of helical pitch frame.
2. a kind of three-jaw instrument that screws up the narrow banding head of pressure vessel as claimed in claim 1 is characterized in that: support tube and helical pitch frame junction arrange reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735105 CN202985500U (en) | 2012-12-28 | 2012-12-28 | Three-jaw tool for twisting narrow-side head of pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220735105 CN202985500U (en) | 2012-12-28 | 2012-12-28 | Three-jaw tool for twisting narrow-side head of pressure container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202985500U true CN202985500U (en) | 2013-06-12 |
Family
ID=48556718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220735105 Expired - Fee Related CN202985500U (en) | 2012-12-28 | 2012-12-28 | Three-jaw tool for twisting narrow-side head of pressure container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202985500U (en) |
-
2012
- 2012-12-28 CN CN 201220735105 patent/CN202985500U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |