CN205147382U - Many rocking arms bore drilling system on tube sheet of fixing - Google Patents
Many rocking arms bore drilling system on tube sheet of fixing Download PDFInfo
- Publication number
- CN205147382U CN205147382U CN201520964942.1U CN201520964942U CN205147382U CN 205147382 U CN205147382 U CN 205147382U CN 201520964942 U CN201520964942 U CN 201520964942U CN 205147382 U CN205147382 U CN 205147382U
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- CN
- China
- Prior art keywords
- tube sheet
- template
- drilling
- fixed
- tube
- 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 discloses a many rocking arms bore drilling system on tube sheet of fixing, the tube sheet is arranged in on a plurality of frock square chests, unanimous level is adjusted into through setting up at the other infrared ray theodolite of tube sheet to the height of frock square chest, the template is fixed on the tube sheet, it is inseparable with tube sheet surface laminating, be fixed with the connecting plate in the template, it bores to be fixed with the rocking arm on the connecting plate, the rocking arm drilling scope that all rocking arms bored is added up to the drilling scope of whole tube sheet, the infrared ray theodolite creeps into the accurate position correction of line to the rocking arm of installation, four preferred rocking arms bore, the equipartition is installed on the tube sheet, four rocking arms bore and carry out the heat exchange tube spot facing work according to the position of the processing bottom outlet that processing in advance is good in the template to the tube sheet, at the other coolant liquid circulation system that is equipped with of tube sheet, cool off the drill bit when being used for the drilling. The beneficial effects of the utility model are that adopt the large -scale tube sheet tube hole system of general accuracy machine tool field processing, its efficiency is higher, and the cost is lower, and the quality is better, and the suitability is stronger.
Description
Technical field
The utility model belongs to Machining Technology field, relates to a kind of multiple stage radial drill and is fixed on hole-drilling system on tube sheet.
Background technology
The boring prior art of tube sheet mainly contains two kinds: one utilizes separate unit radial drill to hole after marking on slab; Another kind utilizes numerical control drilling directly to hole.
The boring of tube sheet generally adopts in factory and manufactures, mainly contain two kinds of methods, a kind of is be placed on the large platform of line by the tube sheet that car is good, platform pincers worker is drawn the pore position line by figure and is charged and attacked dotting punch with sample and draw planning detection circle line, afterwards tube sheet is fixed in the work top of radial drill, utilize separate unit radial drill by dotting punch position boring one by one, this kind of method efficiency is lower, and cost is lower; Another kind places on numerical control drilling work top by tube sheet good for car, and after numerical control driller presses the programming of position, drawing hole, numerical control drilling is directly holed.This kind of method efficiency is higher, and cost is higher.
The maximum specification of radial drill boring is generally 100mm, and the boring maximum outreach of its rocking arm is generally 3150mm, and need multiple clamping centering workpiece for the large-scale tube sheet of brill, time-consuming, efficiency are low, and quality is unstable; And numerical control drilling drilling efficiency is high, but numerical control drilling processing charges is higher, it is domestic also less that large-sized numerical control bores the higher numerical control drilling especially can processing more than 5000mm part of expense, namely allows to processing owing to affecting by cost of transportation and road overload etc., also more difficult realization.
In recent years, along with petrochemical plant maximizes, tubular heat exchanger is impelled also to be tending towards maximizing, also more at more than 5000mm of tube sheet specification, and most equipment also needs erecting bed to construct owing to limitting by traffic condition, and the present invention is exactly the difficult problem in order to solve the boring of large-scale tube sheet site operation, solve separate unit radial drill drilling efficiency low, ropy problem, also solves and is drilled to this costly with large-sized numerical control, transport limited problem.
Utility model content
The purpose of this utility model is that proposing a kind of multiple stage radial drill that utilizes is fixed on the system that tube sheet is holed, and solves the problem with machine tool machining large tube sheet efficiency is low, of poor quality, cost is high.This kind of method is applicable to the pore that on site operation machining large tube sheet, precision is higher, and the example of such as holing on the tube sheet of 90mm at diameter 5000mm, thickness is authenticated, and effect is better.
The technical scheme that the utility model adopts is, a kind of multiple stage radial drill is fixed on the hole-drilling system on tube sheet, tube sheet is placed on some frock square chests, the height of frock square chest is adjusted to consistent level height by the infrared ray theodolite being arranged on tube sheet other, template is fixed on tube sheet, fit closely with tube sheet surface, template is fixed with connecting plate, connecting plate is fixed with radial drill, the rocker arm drilling scope of all radial drills is added up as the boring scope of whole tube sheet, infrared ray theodolite carries out exact position correction to the radial drill installed, preferably four radial drills, uniformly be arranged on above tube sheet, four radial drills carry out heat exchanger tube hole machined by the position of the machined bottom that template processes in advance to tube sheet, coolant circulation system is provided with on tube sheet side, for during drilling, drill bit is cooled.
The beneficial effects of the utility model adopt machine tool on-the-spot machining large tube sheet pore system, and its efficiency is higher, and cost is lower, and quality is better, and applicability is stronger.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram;
Fig. 2 is the utility model system schematic top plan view;
Fig. 3 is the radial drill connection diagram of the utility model system.
In figure, 1. tube sheet, 2. frock square chest, 3. infrared ray theodolite, 4. template, 5. connecting plate, 6. radial drill, 7. liquid circulation water system, 601. bolts, 602. pedestals.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
Be the system of the utility model method employing as depicted in figs. 1 and 2, tube sheet 1 is placed on some frock square chests 2, the height of frock square chest 2 is adjusted to consistent level height by the infrared ray theodolite 3 being arranged on tube sheet 1 other, template 4 is fixed on tube sheet 1, fit tight and with several bolts and tube sheet tightly integral with tube sheet 1 surface, template 4 is fixed with 4 (the several connecting plate of several radial drill) connecting plates 5, connecting plate 5 is fixed with radial drill 6, the rocker arm drilling scope of all radial drills 6 is added up and should be covered the boring scope of whole tube sheet 1, four radial drills 6 are provided with in this illustration 1, be distributed on tube sheet 1 surrounding, template 4 gets out in advance the machined bottom of heat exchange pore, heat exchanger tube hole machined is carried out with radial drill 6 pairs of tube sheets 1, liquid circulation water system 7 is provided with on tube sheet 1 side, for during drilling, system is cooled.
Be illustrated in figure 3 the connection diagram of radial drill 6.By bolt 601, the pedestal 602 of radial drill 6, connecting plate 5 and tube sheet and template are linked together.
Citing: at two large-sized calandria type heat exchangers of From Shandong Rizhao enterprise site operation at the beginning of 2014, tube sheet diameter 5640mm, thickness 90mm, pore 24928, aperture Ф
bridge spacing 96% allows bridge > 5.64mm, 4% allows minimum bridge>=3.48mm, condition of construction was (bore template being) of the machining of drilling realized with 4 Z50 radial drills according to the step 1 in technical solution of the present invention ~ 6 at the installation scene of this enterprise in boring at that time, check after boring that aperture size is all qualified, bridge spacing 98% bridge > 5.7mm, the minimum bridge>=4.2mm of 2%.Meet completely and be better than drawing requirement.Every block drilling of tubesheet is saved time more than 1 month compared with separate unit radial drill, saves external coordination digital control processing expense more than 70,000 yuan.
The utility model is holed by 4 radial drills fixing on tube sheet simultaneously, and utilize template to make benchmark bottom outlet, with the deformation in infrared ray theodolite monitoring tube sheet face in drilling process, the utility model Measures compare is practical and easily realize, and achieves the object of on-the-spot processing pore high-efficiency high-quality.Also created the new system of one of on-the-spot machining large tube sheet simultaneously.
The above is only to better embodiment of the present utility model, not any pro forma restriction is done to the utility model, every any simple modification above embodiment done according to technical spirit of the present utility model, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.
Claims (1)
1. a multiple stage radial drill is fixed on the hole-drilling system on tube sheet, it is characterized in that: tube sheet (1) is placed on frock square chest (2), the height of frock square chest (2) is adjusted to consistent level height by the infrared ray theodolite (3) being arranged on tube sheet (1) other, template (4) is fixed on tube sheet (1), fit closely with tube sheet (1) surface, template (4) is fixed with connecting plate (5), connecting plate (5) is fixed with radial drill (6), template (4) is provided with heat exchanger tube hole machined bottom outlet, tube sheet (1) is other is provided with liquid circulation water system (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964942.1U CN205147382U (en) | 2015-11-27 | 2015-11-27 | Many rocking arms bore drilling system on tube sheet of fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520964942.1U CN205147382U (en) | 2015-11-27 | 2015-11-27 | Many rocking arms bore drilling system on tube sheet of fixing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205147382U true CN205147382U (en) | 2016-04-13 |
Family
ID=55683121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520964942.1U Expired - Fee Related CN205147382U (en) | 2015-11-27 | 2015-11-27 | Many rocking arms bore drilling system on tube sheet of fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205147382U (en) |
-
2015
- 2015-11-27 CN CN201520964942.1U patent/CN205147382U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161127 |