CN202884930U - Novel bolt flame heater - Google Patents
Novel bolt flame heater Download PDFInfo
- Publication number
- CN202884930U CN202884930U CN 201220614341 CN201220614341U CN202884930U CN 202884930 U CN202884930 U CN 202884930U CN 201220614341 CN201220614341 CN 201220614341 CN 201220614341 U CN201220614341 U CN 201220614341U CN 202884930 U CN202884930 U CN 202884930U
- Authority
- CN
- China
- Prior art keywords
- welding gun
- flame
- bolt
- seat
- conical
- 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 - Lifetime
Links
- 238000003466 welding Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 abstract description 2
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
Abstract
The utility model discloses a novel bolt flame heater, which comprises a shell (1), a welding gun seat (2), a compressed air inlet joint (3) and a heating pipe thread connecting seat (4), and the novel bolt flame heater is characterized in that a conical air guide port (5) is formed in the shell (1). The conical air guide port is formed in the shell, 360-degree guide is realized, oxy-acetylene flame is blown into a bolt hole in an optimal air guide angle, and the condition that the flame is reversely combusted is avoided. A conical nozzle which is equivalent to a welding gun head in taper is arranged at a position of the welding gun head on the welding gun seat, the conical nozzle is tightly matched with the welding gun head, and flame is prevented from rising in the process of heating the bolt; and moreover, the periphery of the welding gun seat is provided with a large-space air cooling cavity, and the temperature rise is slow.
Description
Technical field
The utility model relates to a kind of fired heater, particularly a kind of Novel bolt fired heater.
Background technology
Attachment bolt all need heat producing and erection stage, makes bolt produce certain elongation, and then fastening, makes bolt reach the pretightning force of designing requirement.During disassembling bolts, also need first heating, make it produce certain elongation, remove again fastening nut.
There is following some deficiency in existing bolt fired heater:
(1) air guide hole 360 degree is divided into 6 apertures and carries out wind-guiding, the machining angle of 6 apertures is difficult to guarantee in the parts process, be blown into to such an extent that compressed air blows the phenomenon that has front and back in the position of arc welding gun head, the compressed air that blows in addition arc welding gun head also has localized voids well not blown to, when current sheet resistance power was excessive, flame was easily from the local reverse burning of weakness;
(2) welding gun seat and arc welding gun head fit clearance are larger, have easily welding gun seat afterbody to emerge in heating process, cause the arc welding gun head temperature to rise even damage;
(3) the air cooling chamber of welding gun seat periphery is less, and temperature rises very fast.
The utility model content
The purpose of this utility model is, the Novel bolt fired heater is provided.The utlity model has the situation that the flame reverse burning can not occur; The utility model is in heating process, and the welding gun seat does not have flame and emerges, and effectively avoids producing tempering in bolt heating process; The air cooling chamber of the utility model welding gun seat periphery is larger, and temperature rises slower.
The technical solution of the utility model: the Novel bolt fired heater, comprise housing, welding gun seat, compressed air inlet joint and the heating tube seat that is threaded, described housing is provided with conical air guide hole.
In the aforesaid Novel bolt fired heater, on the described welding gun seat, place the position of arc welding gun head, be provided with the conical nozzle suitable with the arc welding gun head tapering.
In the aforesaid Novel bolt fired heater, the outer air cooling chamber that is arranged with of described welding gun seat.
Compared with prior art, housing of the present utility model is provided with conical air guide hole, and 360 degree guiding are blown into bolt hole with the wind-guiding angle of the best with oxy arc, the situation of flame reverse burning can not occur; On the welding gun seat of the present utility model, place the position that arc welding gun head is placed, be provided with the conical nozzle suitable with the arc welding gun head tapering, cooperate closely with arc welding gun head, avoid in bolt heating process, having flame to emerge; Welding gun seat of the present utility model is arranged with the larger air cooling chamber in space outward, and temperature rises slower.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Being labeled as in the accompanying drawing: 1-housing, 2-welding gun seat, 3-compressed air inlet joint, the 4-heating tube seat that is threaded, 5-air guide hole, 6-nozzle, 7-air cooling chamber, 8-tail gas hole, 9-combustion chamber.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, but not as the foundation to the utility model restriction.
Embodiment.The Novel bolt fired heater consists of as shown in Figure 1, comprises housing 1, welding gun seat 2, compressed air inlet joint 3 and the heating tube existing bolt fired heater structures such as seat 4 that are threaded, and be characterized in: described housing 1 is provided with conical air guide hole 5.On the described welding gun seat 2, place the position of arc welding gun head, be provided with the conical nozzle 6 suitable with the arc welding gun head tapering.The outer air cooling chamber 7 that is arranged with of described welding gun seat 2.
Operation principle of the present utility model: place arc welding gun head on the welding gun seat 2, compressed air inlet joint 3 external compressed airs, the heating tube seat 4 that is threaded connects heating tubes.The mist that ejects from arc welding gun head is after 9 internal combustion of combustion chamber, form hot flame gas, driven by compressed air (compressed air enters combustion chamber 9 through air cooling chamber 7, conical air guide hole 5), flow to heating tube, after the heating tube outflow, enter the annular-heating zone between heating tube outer wall and the bolt center bore inner wall, bolt is heated, tail gas after the heating refluxes along the gap between heating tube outer wall and the bolt center bore inner wall, and discharge in the tail gas hole on housing 18 again.
Claims (3)
1. the Novel bolt fired heater comprises that housing (1), welding gun seat (2), compressed air inlet joint (3) and heating tube are threaded (4), and it is characterized in that: described housing (1) is provided with conical air guide hole (5).
2. Novel bolt fired heater according to claim 1 is characterized in that: on the described welding gun seat (2), place the position of arc welding gun head, be provided with the conical nozzle (6) suitable with the arc welding gun head tapering.
3. Novel bolt fired heater according to claim 1 and 2 is characterized in that: the outer air cooling chamber (7) that is arranged with of described welding gun seat (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614341 CN202884930U (en) | 2012-11-19 | 2012-11-19 | Novel bolt flame heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614341 CN202884930U (en) | 2012-11-19 | 2012-11-19 | Novel bolt flame heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202884930U true CN202884930U (en) | 2013-04-17 |
Family
ID=48076354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220614341 Expired - Lifetime CN202884930U (en) | 2012-11-19 | 2012-11-19 | Novel bolt flame heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202884930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180088A (en) * | 2011-10-26 | 2013-06-26 | Newpol机械工程有限公司 | Gas bolt heating apparatus |
-
2012
- 2012-11-19 CN CN 201220614341 patent/CN202884930U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103180088A (en) * | 2011-10-26 | 2013-06-26 | Newpol机械工程有限公司 | Gas bolt heating apparatus |
| CN103180088B (en) * | 2011-10-26 | 2016-08-10 | Newpol机械工程有限公司 | Gas bolt heating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |