CN2302861Y - Machine for working screws on ends of reinforcing steel bar - Google Patents
Machine for working screws on ends of reinforcing steel bar Download PDFInfo
- Publication number
- CN2302861Y CN2302861Y CN 97242908 CN97242908U CN2302861Y CN 2302861 Y CN2302861 Y CN 2302861Y CN 97242908 CN97242908 CN 97242908 CN 97242908 U CN97242908 U CN 97242908U CN 2302861 Y CN2302861 Y CN 2302861Y
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- CN
- China
- Prior art keywords
- rolling
- utility
- model
- cylindrical die
- reinforcing bar
- 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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- Reinforcement Elements For Buildings (AREA)
Abstract
The utility model discloses equipment for machining taper threads on the end part of a steel bar. The utility model is mainly composed of a motor, a decelerator, a rolling seat, a rolling and machining mechanism, a clamping mechanism, a seat, a feeding mechanism, a coolant supplying device, etc. The utility model is characterized in that three thread rolling wheels of the rolling and machining mechanism are cylindrical and are distributed on the circumference of the rolling and machining mechanism in an angle of 120 DEG. The included angle formed by the axial cord of each thread rolling wheel and the axial cord of a steel bar is half as large as the taper angle of taper threads. The thread pitch corresponding to each thread rolling wheel differs by 1/3 thread pitch in axial direction. The utility model can directly roll threads, so the working processes is reduced; the utility model effectively raises the tensile strength and the fatigue strength of a joint with taper threads.
Description
The utility model relates in a kind of architectural engineering reinforced concrete structure, and taper thread of reinforcing bar connects, in order to process end reinforced taper thread equipment.
Existing two kinds of taper thread of reinforcing bar process equipment patents.A kind of is the European patent EP 282889-A of U.S. Erico Int Copr company application, relates generally to taper thread of reinforcing bar rolling method, and its principle is to be pressed into taper end reinforced earlier, centers on reinforcing bar axis revolving-rolling with the rolled thread mould then and goes out taper thread.Be characterized in that cylindrical die roll is a plate-like, the axis of cylindrical die roll and processed reinforcing bar axis normal.Another kind is the end reinforced connecting thread rolling mill of Chinese utility model patent ZL95243988.3, and its principle is earlier to cut into taper end reinforced, with rolling mechanism reinforcing bar is rolled into taper thread again.Be characterized in that cylindrical die roll is taper, the axis of cylindrical die roll is parallel with the axis of processed reinforcing bar.But these two kinds of modes are processed end reinforced taper thread, all need earlier to be processed into taper with end reinforced, increased the complexity of manufacturing procedure and equipment, so result of use are not fully up to expectations.
The purpose of this utility model is, provides a kind of and can effectively overcome above-mentioned defective, can directly roll out the reinforcing bar link taper thread roller press of taper thread.
The technical solution of the utility model is: a kind of reinforcing bar link taper thread roller press, mainly by motor, decelerator, roll seat, rolling and processing mechanism, clamp mechanism, base, feed mechanism, coolant supply apparatus etc. and form, its characteristics are: rolling and processing mechanism is made up of roll extrusion frame and three cylindrical die rolls, cylindrical die roll is cylindrical, support by bearing, be distributed on the circumference by hexagonal angle, the angle of cylindrical die roll axis and reinforcing bar axis is half of taper thread cone angle.
Owing to adopt such scheme, be not difficult to draw as drawing a conclusion, the utility model is rolled thread directly, reduced manufacturing procedure, and cylindrical cylindrical die roll processing is convenient than plate-like and taper, precision is easy to control and save material, and the cylindrical die roll diameter and the diameter of axle are bigger than taper cylindrical die roll simultaneously, have improved the intensity and the bearing life of axle.Owing to be reinforced in the cold working of reinforcing bar material, improved the hardness of screw thread, thereby the tensile strength and the fatigue strength of taper thread joint have been improved, make taper thread joint tensile strength reach the actual strength of parent material of reinforcement rebar, meet Chinese industry standard JGJ107-96 " reinforcing steel bar machinery connects the current techique rules " A level joint performance.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the schematic diagram of the utility model cylindrical die roll and reinforcing bar relative position;
Fig. 2 is the utility model general structure schematic diagram;
Fig. 3 is the structural representation of the utility model rolling and processing mechanism.
Among the figure, motor 1, decelerator 2, roll seat 3 and rolling and processing mechanism 4 is assembled into an integral body, move rolling leading of base 6 vertically under the effect of feed mechanism 7, rolling and processing mechanism 4 can unload replacing separately.Rolling and processing mechanism 4 is made up of 9,14 and three cylindrical die rolls 10 of roll extrusion frame.Cylindrical die roll 10 is cylindrical, by 11 supportings of two bearings.Three cylindrical die rolls 10 distribute by 120 ° of central angles, the angle of the axis of cylindrical die roll 10 and the axis of processed reinforcing bar, equal half of taper thread cone angle, the pitch of three cylindrical die roll 10 screw threads is axially differing 1/3rd, for making three cylindrical die rolls 10 keep pitch difference constant in roll extrusion, each cylindrical die roll 10 respectively is equipped with bevel gear 12 and Intermediate bevel gears 13 engagements.Feed mechanism 7 is by motor 1, the reduction gearing transmission, and gear driven rolls the tooth bar of seat 3, and rolling and processing mechanism 4 is moved vertically, and feed mechanism 7 also can manual transmission simultaneously.
The course of work of the present utility model is that the clamped mechanism 5 of reinforcing bar is clamped on the station, start rolling and processing mechanism 4 and the motor of feed mechanism 7 and the coolant pump of coolant supply apparatus 8, three cylindrical die rolls 10 of rolling and processing mechanism 4 are around the reinforcing bar rotation, send axially simultaneously that to carry out screw thread rolling to, close coolant pump in rolling end, two motors stop simultaneously, two motor counter-rotatings then, rolling and processing mechanism 4 withdraws from, and unclamps clamp mechanism 5, takes out the reinforcing bar operation and finishes.
The rolling and processing of the same tapering of the applicable worker of the utility model, tooth shapes, different pitch taper threads.
Claims (2)
1. reinforcing bar link taper thread roller press, mainly by motor, decelerator, roll seat, rolling and processing mechanism, clamp mechanism, base, feed mechanism, coolant supply apparatus etc. and form, it is characterized in that: rolling and processing mechanism is made up of roll extrusion frame and three cylindrical die rolls, cylindrical die roll is cylindrical, support by bearing, be distributed on the circumference by hexagonal angle, the angle of cylindrical die roll axis and reinforcing bar axis is half of chain screw thread cone angle.
2. a kind of reinforcing bar link taper thread roller press according to claim 1, it is characterized in that: the pitch of three cylindrical die roll correspondences is axially differing 1/3rd pitch each other, each cylindrical die roll is furnished with a bevel gear, and three bevel gears are meshing with each other by an Intermediate bevel gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242908 CN2302861Y (en) | 1997-12-15 | 1997-12-15 | Machine for working screws on ends of reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242908 CN2302861Y (en) | 1997-12-15 | 1997-12-15 | Machine for working screws on ends of reinforcing steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2302861Y true CN2302861Y (en) | 1999-01-06 |
Family
ID=33952013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242908 Expired - Fee Related CN2302861Y (en) | 1997-12-15 | 1997-12-15 | Machine for working screws on ends of reinforcing steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2302861Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274348B (en) * | 2007-03-27 | 2011-05-25 | 浙江新东方紧固件有限公司 | Thread roller air compression oil-blowing mechanism |
-
1997
- 1997-12-15 CN CN 97242908 patent/CN2302861Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274348B (en) * | 2007-03-27 | 2011-05-25 | 浙江新东方紧固件有限公司 | Thread roller air compression oil-blowing mechanism |
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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 |