CN108180087B - High-pressure bearing post-pump fuel swing device - Google Patents
High-pressure bearing post-pump fuel swing device Download PDFInfo
- Publication number
- CN108180087B CN108180087B CN201711462579.3A CN201711462579A CN108180087B CN 108180087 B CN108180087 B CN 108180087B CN 201711462579 A CN201711462579 A CN 201711462579A CN 108180087 B CN108180087 B CN 108180087B
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- Prior art keywords
- ring
- force transmission
- corrugated pipe
- transmission ring
- reinforced corrugated
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K9/00—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof
- F02K9/42—Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants
- F02K9/60—Constructional parts; Details not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/026—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with interior reinforcement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Abstract
A high-pressure bearing post-pump fuel swing device comprises a force transmission ring fork, a gimbal ring, an S-shaped reinforced corrugated pipe and a guide cylinder; the two force transmission ring forks are respectively connected with the inlet end and the outlet end of the S-shaped reinforced corrugated pipe, and each force transmission ring fork comprises a force transmission ring and two force transmission arms which are symmetrically connected with the two sides of the force transmission ring; the gimbal ring is of an annular structure, and mounting holes are uniformly distributed in the radial direction; the pin shaft is fixedly connected with the force transmission arm, the joint bearing is arranged in the mounting hole of the gimbal ring, and the gimbal ring is hinged with the pin shaft through the joint bearing so that the force transmission ring fork rotates relative to the gimbal ring; the force transmission ring is fixedly connected with the S-shaped reinforced corrugated pipe; the S-shaped reinforced corrugated pipe is arranged in the normally flat ring; the guide cylinder used for combing the flow field direction is fixedly connected with the force transmission ring fork at the inlet end and is arranged in the S-shaped reinforced corrugated pipe. The high-pressure fuel bearing swing device provided by the invention can meet the two-way swing requirement of a high-pressure fuel path of a liquid rocket engine, and can ensure good displacement compensation capability in the swing process of the engine while conveying a high-pressure medium.
Description
Technical Field
The invention belongs to the field of liquid rocket engine manufacturing, and can be used for pipeline deformation compensation needing to swing under a high-pressure condition in other technical fields.
Background
The fuel swaying device after the high pressure bearing pump is a deformation compensator of a high pressure pipeline, belongs to the field of metal expansion joints, can realize the pressure bearing function of the pipeline and simultaneously compensate the pipeline deformation when the pipeline sways periodically, and has wide application in the industries of aerospace, petrochemical industry, electric power, automobiles, ships and the like.
The standard JB-T6171-2013-mentioned angular universal expansion joint has the functions of absorbing any in-plane angular displacement and bearing internal pressure, and consists of a corrugated pipe, a pin shaft, a hinge plate, a universal ring and a vertical plate, the corrugated pipe adopted by the structure is not provided with a reinforcing ring, the internal pressure bearing capacity is not higher than 4MPa, the force-transferring swing hinge plate is hinged with the universal ring through the pin shaft, and the hinge structure of the hinge plate, the universal ring and the pin shaft is easy to deform and block under the axial separation load of a large pin, so that the standard medium-angle universal expansion joint cannot solve the problem of high-pressure swing.
Disclosure of Invention
The invention aims to provide a fuel swing device capable of bearing high pressure, which can solve the problem that the existing standard metal expansion joint scheme is insufficient in pressure bearing capacity, is used for high-pressure medium transportation and swing deformation compensation of a fuel pipeline behind a liquid rocket engine pump, and is suitable for bidirectional swing of a high-pressure pipeline with working pressure higher than 40 MPa.
The above purpose of the invention is realized by the following technical scheme:
a high-pressure bearing post-pump fuel swing device comprises a force transmission ring fork, a normally flat ring and an S-shaped reinforced corrugated pipe; the two force transmission ring forks are respectively connected with the inlet end and the outlet end of the S-shaped reinforced corrugated pipe for bearing and transmitting force, and each force transmission ring fork comprises a force transmission ring and two force transmission arms symmetrically connected to the two sides of the force transmission ring; the gimbal ring is in a closed ring shape, and mounting holes are uniformly distributed in the circumferential direction; the pin shaft is fixedly connected with the force transmission arm, the joint bearing is arranged in the mounting hole of the gimbal ring, and the gimbal ring is hinged with the pin shaft through the joint bearing so that the force transmission ring fork rotates relative to the gimbal ring; the force transmission ring is fixedly connected with the S-shaped reinforced corrugated pipe; the S-shaped reinforced corrugated pipe is arranged in the normally flat ring and generates angular deformation when the device swings.
Preferably, the device also comprises a guide cylinder for carding the flow field direction; the guide cylinder is fixedly connected with the force transmission ring at the inlet end and is arranged in the S-shaped reinforced corrugated pipe.
Preferably, the S-shaped reinforced corrugated pipe comprises an expansion joint, an end armoured ring and an armoured ring; the expansion joint comprises straight edge sections positioned at two ends and a plurality of sequentially connected nodes positioned between the two straight edge sections, and each node comprises a sequentially connected arc-shaped trough, linear transition sections arranged at two ends of the arc-shaped trough and an arc-shaped wave crest connected with the linear transition sections; the cross section of the armor ring comprises a joint section, a compensation section and a positioning section, the joint section and the compensation section are respectively matched with the arc-shaped wave trough and the linear transition section of the expansion joint, an involute gap is arranged between the compensation section and the arc-shaped wave crest, one end of the positioning section is connected with the compensation section, and the other end of the positioning section is provided with a positioning clamping groove; the end head armor ring comprises a first welding ring plate, a second welding ring plate and a seal head, the first welding ring plate and the second welding ring plate are concentrically distributed outside the seal head, the first welding ring plate is positioned in the second welding ring plate, the first welding ring plate is fixedly connected with a straight edge section of the expansion joint, and the inner side of the seal head is matched with the wave joint at the tail end; the second welding ring plate is fixedly connected with the force transmission ring.
Preferably the force transfer arm comprises two prongs; the gimbal ring is disposed between the two yoke arms.
Preferably, the guide shell is of a flow passage gradually-closing structure, the outlet outer diameter of the guide shell is smaller than the minimum inner diameter of the S-shaped reinforced corrugated pipe by L (a/2), wherein L is the length of the S-shaped reinforced corrugated pipe, and a is the maximum swing angle; the outlet end of the guide cylinder does not exceed the axis position of the pin shaft.
Preferably, the force transmission ring and the force transmission arm are integrally machined to form an integral structure.
Preferably, the force transmission ring fork material is stainless steel, and the gimbal ring material is martensitic stainless steel.
Preferably, the force transmission ring is welded with the second welding ring plate; the force transmission ring is welded with the guide cylinder.
Compared with the prior art, the invention has the advantages that:
(1) the S-shaped reinforced corrugated pipe is adopted, the armored ring reinforced corrugated pipe is adopted, the structural bearing capacity can be improved, the instability limit pressure can be improved, the integral deformation of the corrugated pipe can be controlled, the large deformation of a part of wave bands of the corrugated pipe can be prevented, the pressure of a swinging pipeline can be improved to be more than 40MPa, and the defect of the bearing capacity of the flexible element of the conventional metal expansion joint can be overcome;
(2) the knuckle bearing, the pin shaft and the hinge force transmission ring fork and the gimbal ring are adopted, the radial bearing capacity of the knuckle bearing is high, the inner ring and the outer ring of the knuckle bearing have certain deflection freedom, the bearing deflection is adopted to avoid the force transmission arm of the force transmission ring fork and the swinging clamping stagnation caused by the deformation of the pin shaft under higher radial force, and the lubricating layers of the inner ring and the outer ring of the knuckle bearing can reduce the swinging moment of the whole device and can reduce the moment requirement on a swinging servo mechanism;
(3) the force transmission ring fork integrates the functions of a hinge plate, a vertical plate and an interface flange in the prior art, the part is integrally machined, the position precision of mounting holes on two force transmission arms can be accurately controlled, and the position precision of a pin shaft and a joint bearing of the whole device is ensured;
(4) the conical surface guide cylinder is arranged, the outlet drift diameter of the guide cylinder comprehensively considers the balance of the swing clearance and the flow resistance of the system, and the flow resistance of the whole swing device is reduced.
Drawings
FIG. 1 is a schematic view of the entire half section of the swing apparatus of the present invention;
FIG. 2 is a schematic view of an S-shaped reinforced bellows, a single-node section and an end armor ring of the rocking device of the present invention;
FIG. 3 is a schematic view of a force transfer ring fork of the high pressure fuel wobble device of the present invention;
FIG. 4 is a schematic structural diagram of a gimbal of a high pressure fuel bearing wobble device of the present invention;
FIG. 5 is a schematic view of the entire half section of the swing device of the present invention including the guide shell;
wherein the reference numerals are: the structure comprises the following components, by weight, 1-a force transmission ring fork, 2-a gimbal ring, 3-a guide cylinder, 4-a pin shaft, 5-a joint bearing, 6-an S-shaped reinforced corrugated pipe, 7-an expansion joint, 8-a straight line section, 9-an end armoured ring, 10-an armoured ring, 11-a wave trough, 12-a transition section, 13-a wave crest, 15-a force transmission ring, 16-a force transmission arm, 17-a pin shaft mounting hole, 19-a joint bearing mounting hole, 20-a first welding ring plate, 21-a head, 22-a second welding ring plate, 23-a joint section, 24-a compensation section, 25-a positioning section and 26-a positioning clamping groove.
Detailed Description
As shown in fig. 1, 3 and 4, the invention comprises two force transmission ring forks 1, a gimbal ring 2 and an S-shaped reinforced corrugated pipe 6; the force transmission ring fork 1 comprises a force transmission ring 15 and two force transmission arms 16 which are symmetrically connected to two sides of the force transmission ring 15, and mounting holes 17 are formed in the force transmission arms 16; the gimbal ring 2 is a closed ring and is circumferentially and uniformly provided with four mounting holes 19; the pin shaft 4 is fixedly connected with the transmission arm 16 through a mounting hole 17; 4 joint bearings 5 are arranged in the mounting holes 19 of the gimbal ring 2, so that the gimbal ring 2 is hinged with the pin shaft 4; the force transmission ring fork 1 is connected with the inlet end and the outlet end of the S-shaped reinforced corrugated pipe 6.
As shown in fig. 2(a) a schematic diagram of an S-shaped reinforced corrugated pipe, a schematic diagram of a single-node section in fig. 2(b), and a schematic diagram of an end armor ring in fig. 2(c), the S-shaped reinforced corrugated pipe 6 includes an expansion joint 7, an end armor ring 9, and an armor ring 10; the expansion joint 7 comprises straight edge sections 8 positioned at two ends and a plurality of sequentially connected nodes positioned between the two straight edge sections, and each node consists of a sequentially connected arc-shaped trough 11, linear transition sections 12 arranged at two ends of the trough and an arc-shaped wave crest 13 connected with the transition sections; the cross section of the armor ring 10 comprises a joint section 23, a compensation section 24 and a positioning section 25, the joint section 23 and the compensation section 24 are respectively matched with an arc-shaped trough 11 and a linear transition section 12 of the expansion joint, an involute gap is arranged between the compensation section 24 and an arc-shaped wave crest 13, one end of the positioning section 25 is connected with the compensation section 24, and the other end of the positioning section 25 is provided with a positioning clamping groove 26; the end head armor ring 9 comprises a first welding ring plate 20, a second welding ring plate 22 and a seal head 21, the first welding ring plate 20 and the second welding ring plate 22 are concentrically distributed outside the seal head 21, the first welding ring plate 20 is positioned in the second welding ring plate 22, the first welding ring plate 20 is fixedly connected with the straight edge section 8 of the expansion joint 7, and the inner side of the seal head 21 is matched with the wave joint at the tail end; the second weld ring plate 22 is welded to the force transfer ring 15 of the force transfer ring yoke 1.
As shown in fig. 5, the swing device further comprises a guide shell 3 for carding the flow field direction; the guide cylinder 3 is a tapered cylinder, is arranged on the inner side of the S-shaped reinforced corrugated pipe 6, is fixed on a force transmission ring 15 of the force transmission ring fork 1 at the inlet end, and guides a high-pressure fluid medium flowing into the inner cavity of the swing device to an outlet to form a guide device; the length of the guide shell 3 is smaller than 1/2 of the S-shaped reinforced corrugated pipe; the outlet outer diameter of the guide cylinder 3 is smaller than the minimum inner diameter of the S-shaped reinforced corrugated pipe 6 by L (a/2), wherein L is the length of the S-shaped reinforced corrugated pipe 6, and a is the maximum swing angle; the outlet end of the guide shell 3 does not exceed the axis position of the pin shaft 4.
The invention is arranged on a high-pressure pipeline; when a high-pressure fluid medium is introduced into the device, the S-shaped reinforced corrugated pipe 6 bears the internal pressure of the high-pressure medium, the generated separating force is transmitted to the force transmission ring forks 1 at two ends through the second welding ring plates 22 of the end armor rings 9, and the force transmission swinging links formed by the force transmission ring forks 1 at two ends, the pin shaft 4, the joint bearing 5 and the gimbal ring 2 are jointly borne, so that the pressure bearing function is realized; when the device swings, the force transmission ring fork 1 at one end is kept fixed, and the force transmission ring fork 1 at the other end swings; the force transmission ring fork 1 at the swinging end drives the S-shaped reinforced corrugated pipe 6 to generate angular deformation under the action of an external mechanism; a pin shaft 4 fixed on the swinging end force transmission ring fork 1 rotates relative to a matched joint bearing 5, and the swinging end force transmission ring fork 1 deflects relative to the gimbal ring 2; the joint bearing 5 on the gimbal ring 2 rotates relative to the pin shaft 4 of the fixed end force transmission ring fork, and the gimbal ring 2 deflects at an angle relative to the fixed end force transmission ring fork 1.
For an engine needing swinging, the swinging device is arranged on a pipeline for connecting the fixed part and the swinging part, and the pipeline and the swinging device can be in welded connection.
Those skilled in the art will appreciate that those matters not described in detail in the present specification are well known in the art.
Claims (7)
1. The utility model provides a bear fuel after high pressure and sway device which characterized in that: comprises a force transmission ring fork (1), a gimbal ring (2), an S-shaped reinforced corrugated pipe (6) and a guide cylinder (3) for carding the flow field direction; the two force transmission ring forks (1) are respectively connected with the inlet end and the outlet end of an S-shaped reinforced corrugated pipe (6) for bearing and transmitting force, and each force transmission ring fork (1) comprises a force transmission ring (15) and two force transmission arms (16) symmetrically connected to the two sides of the force transmission ring (15); the gimbal ring (2) is in a closed ring shape, and mounting holes are uniformly distributed in the circumferential direction; the pin shaft (4) is fixedly connected with the force transmission arm (16), the joint bearing (5) is arranged in the mounting hole of the gimbal ring (2), and the gimbal ring (2) is hinged with the pin shaft (4) through the joint bearing (5) to ensure that the force transmission ring fork (1) rotates relative to the gimbal ring (2); the force transmission ring (15) is fixedly connected with the S-shaped reinforced corrugated pipe (6); the S-shaped reinforced corrugated pipe (6) is arranged in the gimbal ring (2) and generates angular deformation when the device swings; the guide shell (3) is of a runner gradually-shrinking structure; the guide shell (3) is fixedly connected with a force transmission ring (15) at the inlet end and is arranged in the S-shaped reinforced corrugated pipe (6), and the outlet end of the guide shell (3) does not exceed the axis position of the pin shaft (4).
2. The high pressure bearing post pump fuel wobble device of claim 1, wherein: the S-shaped reinforced corrugated pipe (6) comprises an expansion joint (7), an end armoured ring (9) and an armoured ring (10); the expansion joint (7) comprises straight edge sections (8) positioned at two ends and a plurality of wave nodes which are positioned between the two straight edge sections (8) and are connected in sequence, and each wave node comprises an arc-shaped trough (11), linear transition sections (12) arranged at two ends of the arc-shaped trough (11) and an arc-shaped wave crest (13) connected with the linear transition sections (12) which are connected in sequence; the cross section of the armor ring (10) comprises a joint section (23), a compensation section (24) and a positioning section (25), the joint section (23) and the compensation section (24) are respectively matched with an arc-shaped trough (11) and a linear transition section (12) of the expansion joint (7), a gradually-opened gap is arranged between the compensation section (24) and an arc-shaped wave crest (13), one end of the positioning section (25) is connected with the compensation section (24), and the other end of the positioning section (25) is provided with a positioning clamping groove (26); the end head armor ring (9) comprises a first welding ring plate (20), a second welding ring plate (22) and a seal head (21), the first welding ring plate (20) and the second welding ring plate (22) are concentrically distributed on the outer side of the seal head (21), the first welding ring plate (20) is positioned in the second welding ring plate (22), the first welding ring plate (20) is fixedly connected with a straight edge section (8) of the expansion joint (7), and the inner side of the seal head (21) is matched with a wave node at the tail end; the second welding ring plate (22) is fixedly connected with the force transmission ring (15).
3. The high pressure bearing post pump fuel wobble device of claim 1 or 2, wherein: the transmission arm (16) comprises two fork arms; the gimbal ring (2) is arranged between the two fork arms.
4. The high pressure bearing post pump fuel wobble device of claim 1 or 2, wherein: the outlet outer diameter of the guide cylinder (3) is smaller than the minimum inner diameter of the S-shaped reinforced corrugated pipe (6) by L (a/2), wherein L is the length of the S-shaped reinforced corrugated pipe (6), and a is the maximum swing angle.
5. The high pressure bearing post pump fuel wobble device of claim 4, wherein: the force transmission ring (15) and the force transmission arm (16) are integrally machined to form an integral structure.
6. The high pressure bearing post pump fuel wobble device of claim 5, wherein: the force transmission ring fork (1) is made of stainless steel, and the gimbal ring (2) is made of martensitic stainless steel.
7. The high pressure bearing post pump fuel wobble device of claim 6, wherein: the force transmission ring (15) is welded with the second welding ring plate (22); the force transmission ring (15) is welded with the guide shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462579.3A CN108180087B (en) | 2017-12-28 | 2017-12-28 | High-pressure bearing post-pump fuel swing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711462579.3A CN108180087B (en) | 2017-12-28 | 2017-12-28 | High-pressure bearing post-pump fuel swing device |
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| Publication Number | Publication Date |
|---|---|
| CN108180087A CN108180087A (en) | 2018-06-19 |
| CN108180087B true CN108180087B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711462579.3A Active CN108180087B (en) | 2017-12-28 | 2017-12-28 | High-pressure bearing post-pump fuel swing device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944869A (en) * | 2019-03-25 | 2019-06-28 | 北京卫星环境工程研究所 | Adapt to the heavy caliber bellows universal joint integral component of vacuum deformation |
| CN110360023B (en) * | 2019-07-23 | 2020-07-21 | 西安航天动力研究所 | Split type self-aligning force transmission frame |
| CN110440071B (en) * | 2019-08-14 | 2020-12-25 | 江苏博格东进管道设备有限公司 | Quick assembly disassembly formula expansion joint |
| CN112196671B (en) * | 2020-09-18 | 2021-08-20 | 中国航发四川燃气涡轮研究院 | Adjustable internal and external culvert force transmission mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628044U (en) * | 2010-02-26 | 2010-11-10 | 江苏晨光波纹管有限公司 | Corrugated pipe compensator with built-in elastic connecting structure |
| CN202193209U (en) * | 2011-07-22 | 2012-04-18 | 中国航天科技集团公司第六研究院第十一研究所 | Double-pendulum gimbal mount with large thrust for engine |
| CN203115332U (en) * | 2012-12-08 | 2013-08-07 | 中国航天科技集团公司第六研究院第十一研究所 | Reinforced multi-layer S-shaped metal corrugated tube |
-
2017
- 2017-12-28 CN CN201711462579.3A patent/CN108180087B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201628044U (en) * | 2010-02-26 | 2010-11-10 | 江苏晨光波纹管有限公司 | Corrugated pipe compensator with built-in elastic connecting structure |
| CN202193209U (en) * | 2011-07-22 | 2012-04-18 | 中国航天科技集团公司第六研究院第十一研究所 | Double-pendulum gimbal mount with large thrust for engine |
| CN203115332U (en) * | 2012-12-08 | 2013-08-07 | 中国航天科技集团公司第六研究院第十一研究所 | Reinforced multi-layer S-shaped metal corrugated tube |
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| CN108180087A (en) | 2018-06-19 |
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