CN206230931U - Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus - Google Patents

Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus Download PDF

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Publication number
CN206230931U
CN206230931U CN201620964597.6U CN201620964597U CN206230931U CN 206230931 U CN206230931 U CN 206230931U CN 201620964597 U CN201620964597 U CN 201620964597U CN 206230931 U CN206230931 U CN 206230931U
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China
Prior art keywords
pull bar
hydraulic press
upper beam
temperature
heating rod
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CN201620964597.6U
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张文宠
何军
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Nantong forging equipment Rugao Co., Ltd.
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NANTONG FORGING EQUIPMENT CO Ltd
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Abstract

The utility model is related to a kind of frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus.It includes straight hole, upper beam, column, workbench, locknut, pull bar, heating rod, adjustment packing ring, heat exchange jacket, industrial conduction oil, electric temperature control device, temperature detection window, temperature point, photoelectric sensor, column is housed between the upper beam and workbench of hydraulic press, pull bar runs through upper beam, column and workbench and two ends are by nut-locking, pull bar is provided with straight hole in the middle of upper end, straight hole is built with heat exchange jacket, heat exchange jacket is built with industrial conduction oil, heating rod lower end stretches into industrial conduction oil and upper end is fixed on pull bar top by adjusting packing ring, heating rod connects electric temperature control device by wire, upper beam side is provided with temperature detection window, pull bar bottom lower section is equipped with photoelectric sensor.Advantage is that design is ingenious, easy to use, dismounts simple, safe and efficient, environmental protection and highly versatile, solves the pretension problem of heavy hydraulic press.

Description

Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus
Technical field
The utility model is related to the framework of hydraulic press to install pretension field, and in particular to a kind of frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus.
Background technology
Conventional hydraulic press is installed pretension and is completed using mechanical-hydraulic mode, and the equipment volume of this mechanical-hydraulic mode is big, Weight is big, bad to operate with, bad dismounting, takes a lot of work laborious, it is impossible to meet market needs well.
The content of the invention
In order to solve the above problems, the utility model proposes a kind of frame hydraulic press single head oil electricity Hybrid Heating pretension dress Put, design ingenious, it is easy to use, dismount simple, safe and efficient, environmental protection and highly versatile.
The technical solution of the utility model:
Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus, it include straight hole, upper beam, column, workbench, locknut, Pull bar, heating rod, adjustment packing ring, heat exchange jacket, industrial conduction oil, electric temperature control device, temperature detection window, temperature point, Photoelectric sensor, is equipped with column between the upper beam and workbench of hydraulic press, pull bar runs through upper beam, column and workbench and two ends By nut-locking, straight hole is provided with the middle of pull bar upper end, built with heat exchange jacket, heat exchange jacket is built with industrial heat conduction for straight hole Oil, heating rod lower end is stretched into industrial conduction oil and upper end is fixed on pull bar top by adjusting packing ring, and heating rod passes through wire Electric temperature control device is connected, upper beam side is provided with temperature detection window, temperature point, temperature inspection are designed with temperature detection window Survey window and lead to upper beam draw-in bar surface, pull bar bottom lower section is equipped with photoelectric sensor.
Described heating rod is that simultaneously upper end is furnished with temperature sensor to sectionally assembled heating rod.
Heating rod is all designed with four pull bars of described hydraulic press, four heating rods are commonly connected to electricity by wire On gas temperature control device, automatically controlled temperature control device is above upper beam.
It is easy to use the utility model has the advantages that design is ingenious, dismount simple, safe and efficient, environmental protection and general Property it is strong, solve the pretension problem of heavy hydraulic press.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is schematic diagram of the present utility model two.
Fig. 3 is partial enlarged drawing of the present utility model.
Fig. 4 is top view of the present utility model.
In figure:1st, straight hole;2nd, upper beam;3rd, column;4th, workbench;5th, locknut;6th, pull bar;7th, sectionally assembled heating rod; 8th, packing ring is adjusted;9th, heat exchange jacket;10th, industrial conduction oil;11st, electric temperature control device;12nd, temperature detection window;13rd, temperature is surveyed Point;14th, photoelectric sensor.
Specific embodiment
1-4, a kind of 60MN frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus, including main frame and vertical referring to the drawings Oily electricity Hybrid Heating pre-tightening apparatus, 6 pull bar upper ends are provided with the straight hole 1 that depth is deeper than the height of upper beam 2, can more meet vertical machine list The actual heating pretension demand of head;Upper beam 2, column 3 and workbench 4 are installed with pull bar 6, and two ends are locked by the mechanical whorl of locknut 5;Pull bar Heat exchange jacket 9 is inserted with 6 straight holes 1;In the injection heat exchange jacket 9 of industrial conduction oil 10;Heating rod 7 is using sectionally assembled and be furnished with Temperature sensor, is suitable for the heating of different depth straight hole 1 and temperature value feedback control;Heating rod 7 is inserted directly into conduction oil 10; Heating rod 7 is used to be threadedly coupled and adjust packing ring 8 and sealed with the end of pull bar 6;Heating rod 7 is connected with electric temperature control device 11.It is main Machine pull bar single head straight hole 1 installs four groups of oil electricity Hybrid Heating pre-tightening apparatus altogether.11 independent control of electric temperature control device, four groups of oil electricity Hybrid Heating pre-tightening apparatus, temperature control is independent of each other.
A kind of above-mentioned 60MN frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus, are in particular in following three ranks Section:
A. industrial conduction oil warm-up phase:According to parameters such as design pretightning force, rod material elastic modelling quantity and linear expansion coefficients The heat energy total amount that pull bar needs can be drawn, the factors such as heat loss are taken into full account, industrial heat conduction is drawn using thermodynamic analysis means Oily theory heating-up temperature, industrial conduction oil preheating temperature is set by theoretical value.
B. heating pretension pull bar extends the stage:Such as Fig. 2, lasting heat is exported can allow pull bar to produce line bulging deformation amount, Be can determine that using photoelectric sensor 14Value changes, the heat effect area outer round surface of pull bar 6 is detected through temperature detection window 12 Different temperatures measuring point temperature value size, take its temperature peak, carry out the heat analysis amendment of pull bar 6, industrial heat conduction is corrected again The operating temperature of oil 10, until the deflection of pull bar 6 that complete design needs.
C. cool down and complete the stage:When the deflection of pull bar 6Meet design requirement, you can screw workbench lower section locknut 5, Heating pretension is completed using principle of expanding with heat and contracting with cold to work.
Wherein, the A stages show as:
Step 1, design pull bar pretension coefficient is 1.2, and pull bar theoretical elongation can be calculated by Hooke's law,
The pull bar theoretical elongation for calculating
Step 2, perfect condition is issued to pull bar elongation, the transformation temperature of whole pull bar;
Step 3, the energy value that whole pull bar thermal deformation needs
In formula:- pretightning force,- pull bar length,- rod material elastic modelling quantity,- pull bar minimum cross-sectional area,- Pull bar linear expansion coefficient,- pull bar quality,- rod material specific heat capacity,- heat loss;
Step 4, using heat analysis method, show that industrial conduction oil theory heating-up temperature is 320 DEG C or so, and pull bar temperature is surveyed Point maximum temperature is at 180 DEG C or so;Theory heating duration is in 33h or so.
Wherein, B-stage shows as:
Step 1, checks that the temperature value and pull bar of a temperature detection window temperature measuring point are actual and becomes at regular intervals Shape amount, record result as follows:It is right when temperature point maximum temperature is respectively 55 DEG C, 85 DEG C, 115 DEG C, 145 DEG C and 155 DEG C AnswerIt is 1.3mm, 2.8m, 3.6mm, 4.4mm and 4.5mm to be worth, corresponding heating duration be respectively 6h, 14h, 28h, 48h and 72h。
Step 2, continuous heating, when pull bar temperature point temperature peak reaches 165 DEG C, industrial heat conduction oil temperature has reached To 365 DEG C, the now deflection of pull bar5.1mm or so is basically stable at no longer to change.
Wherein, C-stage shows as:
Step 1,During for 5.1mm, heating pretension design requirement having been met, can having terminated to heat pretension, workbench has been locked at once Lower section locknut.
Step 2, timeliness to room temperature can complete the pretension work of pull bar.

Claims (3)

1. frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus, it is characterised in that it includes straight hole, upper beam, column, work Platform, locknut, pull bar, heating rod, adjustment packing ring, heat exchange jacket, industrial conduction oil, electric temperature control device, temperature detection window, temperature Degree measuring point, photoelectric sensor, are equipped with column between the upper beam and workbench of hydraulic press, pull bar runs through upper beam, column and workbench And two ends are provided with straight hole by nut-locking in the middle of pull bar upper end, built with heat exchange jacket, heat exchange jacket is built with industry for straight hole Conduction oil, heating rod lower end stretches into industrial conduction oil and upper end is fixed on pull bar top by adjusting packing ring, and heating rod passes through Wire connects electric temperature control device, and upper beam side is provided with temperature detection window, temperature point is designed with temperature detection window, temperature Degree detection window leads to upper beam draw-in bar surface, and pull bar bottom lower section is equipped with photoelectric sensor.
2. frame hydraulic press single head according to claim 1 oil electricity Hybrid Heating pre-tightening apparatus, it is characterised in that described Heating rod is that simultaneously upper end is furnished with temperature sensor to sectionally assembled heating rod.
3. frame hydraulic press single head according to claim 1 oil electricity Hybrid Heating pre-tightening apparatus, it is characterised in that described Heating rod is all designed with four pull bars of hydraulic press, four heating rods are commonly connected on electric temperature control device by wire, Automatically controlled temperature control device is above upper beam.
CN201620964597.6U 2016-08-29 2016-08-29 Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus Active CN206230931U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620964597.6U CN206230931U (en) 2016-08-29 2016-08-29 Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus

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Application Number Priority Date Filing Date Title
CN201620964597.6U CN206230931U (en) 2016-08-29 2016-08-29 Frame hydraulic press single head oil electricity Hybrid Heating pre-tightening apparatus

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CN206230931U true CN206230931U (en) 2017-06-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110153330A (en) * 2019-06-06 2019-08-23 昆山永年先进制造技术有限公司 The post stretching pre-tightened for heavy prestressed structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110153330A (en) * 2019-06-06 2019-08-23 昆山永年先进制造技术有限公司 The post stretching pre-tightened for heavy prestressed structure

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GR01 Patent grant
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TR01 Transfer of patent right

Effective date of registration: 20180816

Address after: 226503 Jiangsu Nantong Rugao North Road Park North Road (economic and Technological Development Zone Forging Industry Park)

Patentee after: Nantong forging equipment Rugao Co., Ltd.

Address before: 226500 Jiangsu Nantong Rugao Economic Development Zone Forging Industry Park

Patentee before: Nantong Forging Equipment Co., Ltd.

TR01 Transfer of patent right