CN104859867A - Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof - Google Patents
Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof Download PDFInfo
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- CN104859867A CN104859867A CN201410789577.5A CN201410789577A CN104859867A CN 104859867 A CN104859867 A CN 104859867A CN 201410789577 A CN201410789577 A CN 201410789577A CN 104859867 A CN104859867 A CN 104859867A
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Abstract
The invention relates to a wide-range variable thrust two-generator parallel pump-fed type engine frame and a preparation method thereof. The wide-range variable thrust two-generator parallel pump-fed type engine frame comprises a portal-type frame body with symmetric openings, and bearing rods respectively arranged at the lower ends of four end corners of the frame body; a butted lug is arranged at the end of each bearing rod; an inclined supporting rod is arranged between each bearing rod and the frame body; each bearing rod, the frame body and the corresponding inclined supporting rod jointly form a triangular supporting structure; supporting rods are respectively arranged between the bearing rods on the left side of the frame body and between the bearing rods on the right side of the frame body; turbine pump mounting supporting seats for mounting of engine turbine pumps are symmetrically arranged at the upper end of the front part of the frame body; adjuster mounting supporting seats for mounting of adjusters and main valves are symmetrically arranged at the upper end of the rear part of the frame body. The wide-range variable thrust two-generator parallel pump-fed type engine frame obtained according to the preparation method is light in structural weight, large in strength margin, and good in open performance.
Description
Technical field
The invention belongs to space industry; change propulsive double parallel pump pressure type engine frame and preparation method, particularly rack construction, titanium alloy material bar, frame prevent the rack construction of being out of shape from designing and production technology by welding protection and regulation sequence of welding, welding after-baking destressing on a large scale to relate to one.
Background technology
The unmanned surveillance plane of certain type near space propulsion system active force of cruising is liquid-propellant rocket engine, and due to bulk and architecture quality restriction, need design one to open wide functional, axial dimension is short, the frame that architecture quality is light.Current China turbopump-fed liquid rocket engine frame mostly is rod-type frame, and opening character is good but axial dimension is comparatively large, and due to the restriction of thrust chamber installation site, causes driving engine complete machine axial length excessive.
Summary of the invention
In order to solve technical matters existing in background technology, the present invention proposes one change propulsive double parallel pump pressure type engine-mounting construction and preparation method on a large scale.Actv. realizes the requirements such as motor structure mass is light, axial length is short, radial dimension envelope scope is little.
Technical scheme of the present invention is: one is change propulsive double parallel pump pressure type engine frame on a large scale, and its special character is: comprise into the body frame of a shape symmetrical openings, be separately positioned on the bearing rod of body frame four end lower end, angle; Above-mentioned each bearing rod termination is provided with docking auricle; Also oblique fulcrum bar is provided with between above-mentioned each bearing rod and body frame; Above-mentioned bearing rod, body frame, oblique fulcrum bar form triangular support configurations jointly; Also strut bar is respectively arranged with between the bearing rod of the above-mentioned body frame left and right sides; Above-mentioned body frame nock is symmetrically arranged with the turbopump erection support for installing engine turbine pump; Body frame rear upper end described above is symmetrically arranged with the regulating control erection support for installing regulating control and main valve;
Above-mentioned docking auricle surface is symmetrically arranged with two through holes; Above-mentioned through hole one is dowel hole, and another is link bolt hole;
Above-mentioned body frame, bearing rod, strut bar, turbopump erection support, regulating control erection support and docking auricle are titanium alloy material.
A preparation method for change propulsive double parallel pump pressure type engine frame on a large scale, its special character is: comprise the following steps:
1] locate
First by body frame, docking auricle clamping position on welding positioning tool; Bearing rod, strut bar, oblique fulcrum bar spot welding location will be located again;
2] weld
Secondly bearing rod, strut bar, oblique fulcrum bar are welded comprehensively; Need air-isolation anti-oxidation in welding process;
3] install
Again by regulating control erection support, turbopump erection support spot welding location, then weld comprehensively;
4] post-processing
4.1 do not dismantle welding positioning tool after welding machine frame completes directly carries out annealing heat treatment; Annealed temperature is strict controlled within the scope of 250 DEG C ~ 270 DEG C, annealing time 2h;
4.2 directly carry out ageing treatment when not dismantling welding positioning tool after frame annealing heat treatment; Aging time 7 days;
4.3 when after frame ageing treatment, and the attachment face of fine limit work docking auricle and dowel hole, link bolt hole, complete the whole production process of frame.
Advantage of the present invention is:
(1) frame of the present invention is all formed by titanium alloy material weld parts, and adopts bar, frame docking form, has that architecture quality is light, strength margin is large, open wide the good advantage of performance;
(2) the engine pack distribution form of the present invention based on frame, frame is installed with thrust chamber body portion and is docked, and makes driving engine complete machine axial length minimum;
(3) frame of the present invention rationally arranges production process and heat-treat condition, and eliminate the adverse effect of titanium alloy welding oxidation, welding deformation, welding machine frame dimensionally stable, positioning precision can meet operating needs.
Accompanying drawing explanation
Fig. 1 is frame outside drawing of the present invention;
Fig. 2 is body mount structure schematic diagram of the present invention;
Fig. 3 is bearing rod structural representation of the present invention;
Fig. 4 is supporting bar structure schematic diagram of the present invention;
Fig. 5 is oblique fulcrum bar structural representation of the present invention;
Fig. 6 is wheel pump erection support structural representation of the present invention;
Fig. 7 is regulating control erection support structural representation of the present invention;
Wherein, 1-body frame, 2-bearing rod, 3-strut bar, 4-oblique fulcrum bar, 5-regulating control erection support, 6-turbopump erection support, 7-dock auricle.
Detailed description of the invention
See Fig. 1-7 one kinds change propulsive double parallel pump pressure type engine frame on a large scale, comprise into the body frame 1 of a shape symmetrical openings, be separately positioned on the bearing rod 2 of body frame 1 four end lower end, angle; Each bearing rod 2 termination is provided with docking auricle 7; Oblique fulcrum bar 4 is also provided with between each bearing rod 2 and body frame 1; Bearing rod 2, body frame 1, oblique fulcrum bar 4 form triangular support configurations jointly; Strut bar 2 is also respectively arranged with between the bearing rod 2 of body frame 1 left and right sides; Body frame 1 nock is symmetrically arranged with the turbopump erection support 6 for installing engine turbine pump; Body frame 1 rear upper end is symmetrically arranged with the regulating control erection support 5 for installing regulating control and main valve; Docking auricle 7 surface is symmetrically arranged with two through holes; Above-mentioned through hole one is dowel hole, and another is link bolt hole; Body frame 1, bearing rod 2, strut bar 3, turbopump erection support 5, regulating control erection support 6 and docking auricle 7 are titanium alloy material.
A preparation method for change propulsive double parallel pump pressure type engine frame on a large scale, its special character is: comprise the following steps:
1] locate
First by body frame, docking auricle clamping position on welding positioning tool; Bearing rod, strut bar, oblique fulcrum bar spot welding location will be located again;
2] weld
Secondly bearing rod, strut bar, oblique fulcrum bar are welded comprehensively; Need air-isolation anti-oxidation in welding process;
3] install
Again by regulating control erection support, turbopump erection support spot welding location, then weld comprehensively;
4] post-processing
4.1 do not dismantle welding positioning tool after welding machine frame completes directly carries out annealing heat treatment; Annealed temperature is strict controlled within the scope of 250 DEG C ~ 270 DEG C, annealing time 2h;
4.2 directly carry out ageing treatment when not dismantling welding positioning tool after frame annealing heat treatment; Aging time 7 days;
4.3 when after frame ageing treatment, and the attachment face of fine limit work docking auricle and dowel hole, link bolt hole, complete the whole production process of frame.
The present invention is the open type Liquid Rocket Engine Bracket of full titanium alloy material weld parts, for the thrust that transmitting thrust room produces, and installs other assemblies of driving engine based on this.The present invention is by becoming the body frame of a shape symmetrical openings, being separately positioned on the bearing rod that lower end, angle held by body frame four, and described each bearing rod termination is provided with docking auricle, is welded to connect between the bearing rod of described body frame side by strut bar; Described body frame nock is symmetrically arranged with the turbopump erection support for installing engine turbine pump; Described body frame rear upper end is symmetrically arranged with the regulating control erection support for installing regulating control and main valve.The present invention is by rationally arranging production process and heat-treat condition, adopt and carry out the method for welding after-baking and ageing treatment together with welding positioning tool, eliminate welding deformation, then machined the fine limit work of mounting plane and knock hole by Milling Machining and fraising, meet the positioning accuracy request of driving engine.Described welding positioning tool needs design according to frame, can the relative position of locating bodies frame and docking auricle, and can meet positioning requirements in heat treatment and ageing treatment.
The present invention adopt frame scheme that thrust chamber mounting means is changed to the docking of body portion from the docking of the head of routine, make driving engine complete machine axial length suitable with thrust chamber length, to greatest extent minimizing driving engine complete machine axial length.
See Fig. 1-7, each part of frame of the present invention is processed by titanium alloy material completely; The body frame of one-tenth door shape symmetrical openings is the center of frame of the present invention, and for docking thrust chamber body portion support plate, turbopump erection support, regulating control erection support, bearing rod and strut bar are arranged in welding; Bearing rod termination butt welding auricle, it is furnished with a dowel hole and a link bolt hole, docks for frame with aircraft interface frame, mating frame.
The each weld parts of frame strictly carries out in order: body frame, docking auricle clamping position on welding positioning tool; Bearing rod, strut bar, oblique fulcrum bar spot welding is before this welded behind location comprehensively; Carry out again regulating control erection support, turbopump erection support spot welding location and weld comprehensively.Welding process strict implement air-isolation is anti-oxidation waits welding protection measure.
Operation after welding machine frame completes is in order: first carry out band frock annealing heat treatment, frock is with to carry out ageing treatment after annealing heat treatment, carry out the fine limit work docking auricle attachment face, knock hole, butt hole after ageing treatment again, complete the whole production process of frame.
As shown in Figure 2, after frame body frame forged titanium alloy blank, adopt Linear cut mode to process frame body frame base, then on numerically-controlled machine tool, press a figure paper size machinework concrete structure.Complete the processing of body frame parts.
As shown in Figure 1, invention frame is welded by assembling parts such as body frame (1), bearing rod (2), strut bar (3), oblique fulcrum bar (4), regulating control erection support (5), turbopump erection support (6), docking auricle (7).By body frame (1), the docking auricle part such as (7) clamping position on welding positioning tool, this process tool locating must be accurate, solid, to ensure scantling of structure after welding machine frame; Second step location bearing rod (2), strut bar (3), oblique fulcrum bar (4), spot welding behind this process location, to ensure relative position, then welds in order comprehensively; 3rd step positioning regulator erection support (5), turbopump erection support (6), the first spot welding of this process entails ensures that relative position is fixed, then welds in order comprehensively.All welding process strict implement air-isolations are anti-oxidation waits welding protection measure.The related frock of frame after having welded is put into heat treatment furnace and is carried out annealing in process by the 4th step, and annealed temperature is strict controlled within the scope of 250 DEG C ~ 270 DEG C, annealing time 2h; The related frock of frame after annealing is carried out ageing treatment, aging time 7 days by the 5th step; 6th step to after ageing treatment frame half-blank processing docking auricle (7) attachment face and docking, knock hole, complete the whole production process of frame.Carry out scantling of structure detection after frame processing completes, detect qualified after product transfer storehouse preserve.
Claims (4)
1. a change propulsive double parallel pump pressure type engine frame on a large scale, is characterized in that: comprise into the body frame of a shape symmetrical openings, be separately positioned on the bearing rod of body frame four end lower end, angle; Described each bearing rod termination is provided with docking auricle; Also oblique fulcrum bar is provided with between described each bearing rod and body frame; Described bearing rod, body frame, oblique fulcrum bar form triangular support configurations jointly; Also strut bar is respectively arranged with between the bearing rod of the described body frame left and right sides; Described body frame nock is symmetrically arranged with the turbopump erection support for installing engine turbine pump; Described body frame rear upper end is symmetrically arranged with the regulating control erection support for installing regulating control and main valve.
2. the one according to claims 1 is change propulsive double parallel pump pressure type engine frame on a large scale, it is characterized in that: described docking auricle surface is symmetrically arranged with two through holes; Described through hole one is dowel hole, and another is link bolt hole.
3. the one according to claims 2 is change propulsive double parallel pump pressure type engine frame on a large scale, it is characterized in that: described body frame, bearing rod, strut bar, turbopump erection support, regulating control erection support and docking auricle are titanium alloy material.
4., based on the preparation method of a kind of double parallel of change propulsive on a large scale pump pressure type engine frame according to claim 1, it is characterized in that: comprise the following steps:
1] locate
First by body frame, docking auricle clamping position on welding positioning tool; Bearing rod, strut bar, oblique fulcrum bar spot welding location will be located again;
2] weld
Secondly bearing rod, strut bar, oblique fulcrum bar are welded comprehensively; Need air-isolation anti-oxidation in welding process;
3] install
Again by regulating control erection support, turbopump erection support spot welding location, then weld comprehensively;
4] post-processing
4.1 do not dismantle welding positioning tool after welding machine frame completes directly carries out annealing heat treatment; Annealed temperature is strict controlled within the scope of 250 DEG C ~ 270 DEG C, annealing time 2h;
4.2 directly carry out ageing treatment when not dismantling welding positioning tool after frame annealing heat treatment; Aging time 7 days;
4.3 when after frame ageing treatment, and the attachment face of fine limit work docking auricle and dowel hole, link bolt hole, complete the whole production process of frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410789577.5A CN104859867B (en) | 2014-12-17 | 2014-12-17 | Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410789577.5A CN104859867B (en) | 2014-12-17 | 2014-12-17 | Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof |
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| Publication Number | Publication Date |
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| CN104859867A true CN104859867A (en) | 2015-08-26 |
| CN104859867B CN104859867B (en) | 2017-02-01 |
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| CN201410789577.5A Active CN104859867B (en) | 2014-12-17 | 2014-12-17 | Wide-range variable thrust two-generator parallel pump-fed type engine frame and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032199A (en) * | 2019-04-19 | 2019-07-19 | 北京航天自动控制研究所 | The pre- drift angle linear compensation method and device at rocket engine stand stretch angle |
| CN110080908A (en) * | 2019-05-10 | 2019-08-02 | 蓝箭航天技术有限公司 | A kind of assemble method of liquid-propellant rocket engine |
| CN111520254A (en) * | 2020-04-23 | 2020-08-11 | 北京深蓝航天科技有限公司 | Parallel structure of multiple engines of rocket |
| CN112943482A (en) * | 2021-01-26 | 2021-06-11 | 西安航天动力研究所 | Integral frame of liquid rocket engine |
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| EP0997666A2 (en) * | 1998-10-30 | 2000-05-03 | Kubota Iron Works Co., Ltd. | Torque converter |
| US20040148924A1 (en) * | 2002-08-12 | 2004-08-05 | Steffen Beyer | Combustion chamber structure and its manufacturing process |
| US20060010852A1 (en) * | 2004-07-16 | 2006-01-19 | Pratt & Whitney Canada Corp. | Turbine exhaust case and method of making |
| CN101035974A (en) * | 2004-05-25 | 2007-09-12 | 杰里·伊拉吉·雅德加 | Turbocombustion engine |
| CN102248360A (en) * | 2011-04-28 | 2011-11-23 | 东风汽车有限公司 | Manufacturing method of frame longitudinal beam and frame longitudinal beam manufactured by same |
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2014
- 2014-12-17 CN CN201410789577.5A patent/CN104859867B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0997666A2 (en) * | 1998-10-30 | 2000-05-03 | Kubota Iron Works Co., Ltd. | Torque converter |
| US20040148924A1 (en) * | 2002-08-12 | 2004-08-05 | Steffen Beyer | Combustion chamber structure and its manufacturing process |
| CN101035974A (en) * | 2004-05-25 | 2007-09-12 | 杰里·伊拉吉·雅德加 | Turbocombustion engine |
| US20060010852A1 (en) * | 2004-07-16 | 2006-01-19 | Pratt & Whitney Canada Corp. | Turbine exhaust case and method of making |
| CN102248360A (en) * | 2011-04-28 | 2011-11-23 | 东风汽车有限公司 | Manufacturing method of frame longitudinal beam and frame longitudinal beam manufactured by same |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110032199A (en) * | 2019-04-19 | 2019-07-19 | 北京航天自动控制研究所 | The pre- drift angle linear compensation method and device at rocket engine stand stretch angle |
| CN110032199B (en) * | 2019-04-19 | 2022-02-25 | 北京航天自动控制研究所 | Pre-deflection angle linear compensation method and device for rocket engine frame deformation angle |
| CN110080908A (en) * | 2019-05-10 | 2019-08-02 | 蓝箭航天技术有限公司 | A kind of assemble method of liquid-propellant rocket engine |
| CN111520254A (en) * | 2020-04-23 | 2020-08-11 | 北京深蓝航天科技有限公司 | Parallel structure of multiple engines of rocket |
| CN112943482A (en) * | 2021-01-26 | 2021-06-11 | 西安航天动力研究所 | Integral frame of liquid rocket engine |
| CN112943482B (en) * | 2021-01-26 | 2022-08-12 | 西安航天动力研究所 | Integral frame of liquid rocket engine |
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| CN104859867B (en) | 2017-02-01 |
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