CN203479530U - Barrel-type moving frame inlaying linear bearings - Google Patents
Barrel-type moving frame inlaying linear bearings Download PDFInfo
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- CN203479530U CN203479530U CN201320564364.3U CN201320564364U CN203479530U CN 203479530 U CN203479530 U CN 203479530U CN 201320564364 U CN201320564364 U CN 201320564364U CN 203479530 U CN203479530 U CN 203479530U
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- moving frame
- engine
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- linear
- barrel
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Abstract
The utility model provides a barrel-type moving frame inlaying linear bearings. The moving frame comprises the barrel-type moving frame, the linear bearings, linear shafts, a shaft support and a test stand body. The barrel-type moving frame is fixedly connected with an engine to be tested through an engine connection hole on a connecting flange. The linear bearings are fixedly installed in a linear bearing connection hole of the barrel-type moving frame. A central axis of the linear bearings, a combustion-chamber central axis of the engine to be tested and a central axis of a force cell are in a same horizontal plane. The central axis of the linear bearings is vertical to a bearing surface of an external bearing pier. The two linear shafts pass through the linear bearings of two sides of the barrel-type moving frame respectively and are fixed through the shaft support. The shaft support is fixed on the test stand body. By using the moving frame of the utility model, difficulties of installation and debugging of an inclined nozzle engine are solved and a problem that a thrust can not be measured accurately is also solved; the structure is novel and reasonable; the installation and the debugging are convenient; an engine performance test need is satisfied; a thrust measurement problem of the engine with a special structure is solved; thrust measurement precision is increased.
Description
Technical field
The present invention relates to a kind of solid propellant rocket standing test thrust measurement technical field, be specially a kind of cartridge type moving frame of stringing bearing.
Background technology
The thrust measurement of engine occupies very consequence in solid propellant rocket development process.Certain special construction thrustor adopts inclined type jet pipe, and because jet pipe is not on the axis of firing chamber, in engine ignition process of the test, thrust exists vertical stress component and horizontal component, and the Measurement accuracy of thrust exists certain difficulty.Originally adopt central frame roller formula test stand, mainly measured the thrust of engine chamber axis horizontal direction.In Installation and Debugging process, the more difficult adjusting of relative position due to front-rear center frame roller, engine chamber axis horizontal degree regulates difficulty larger, test stand resistance changes with the compression degree of central frame roller, the inconsistent thrust measurement value scattered error that causes of engine installment state is larger, has affected the Measurement accuracy of motor power.
Summary of the invention
The technical matters solving
For fear of the deficiencies in the prior art part, the present invention proposes a kind of cartridge type moving frame of stringing bearing, to solve the Installation and Debugging difficulty of inclined type jet pipe engine, and the problem that cannot accurately transmit of thrust.The bearing ball of linear bearing and axle are and contact, and frictional resistance is little, measure highly sensitively, are applied to the thrust measurement precision that can improve engine in the moving frame of test stand.
Technical scheme
Technical scheme of the present invention is:
The cartridge type moving frame of described a kind of stringing bearing, is characterized in that: comprise cartridge type moving frame, linear bearing, linear axis, bracing strut, test-bed body; Described cartridge type moving frame two ends are joint flange, respectively have two linear bearing connecting holes on the joint flange at two ends, have engine connecting hole on the joint flange of one end, have force cell connecting hole on other end joint flange; Cartridge type moving frame is fixedly connected with engine to be measured by the engine connecting hole on the joint flange of one end; In four linear bearing connecting holes of cartridge type moving frame, be installed with linear bearing, the firing chamber central axis of the central axis of linear bearing and engine to be measured, and force cell central axis is in same level, and the central axis of linear bearing is perpendicular to the load-carrying surface of outside load pier; Two linear axis are respectively through the linear bearing of cartridge type moving frame both sides, and linear axis two ends fix by bracing strut, and bracing strut is fixed on test-bed body.
Beneficial effect
A kind of employing linear bearing type cartridge type moving frame that the present invention proposes, to solve the difficulty of inclined type jet pipe engine Installation and Debugging, and the problem that thrust cannot Measurement accuracy.The horizontal thrust that engine produces is delivered on force cell through cartridge type moving frame, realizes the accurate transmission of thrust.The bearing ball of linear bearing and axle are and contact, and frictional resistance is little, measure highly sensitively, are applied to the thrust measurement precision that can improve engine on test stand.Its novel and reasonable structure, Installation and Debugging are convenient, meet engine performance test needs, solved special construction motor power and measured a difficult problem, improved thrust measurement precision.Standardization of linear bearing, commercialization, be convenient to carry out type selecting according to the size of bearing load, is conducive to reduce costs, and can promote the use of.
Accompanying drawing explanation
Fig. 1: structural representation of the present invention;
The A-A cut-open view of Fig. 2: Fig. 1;
The left view of Fig. 3: Fig. 1;
Fig. 4: cartridge type moving frame structural representation;
Fig. 5: the left view of cartridge type moving frame;
Fig. 6: linear bearing schematic diagram;
Fig. 7: linear axis schematic diagram;
Fig. 8: bracing strut schematic diagram;
Fig. 9: bracing strut left view;
Wherein: 1, cartridge type moving frame; 2, linear bearing; 3, linear axis; 4, back-up ring; 5, engine coupling bolt; 6, bracing strut; 7, set nut; 8, engine to be measured; 9, bracing strut coupling bolt; 10, test-bed body; 11, linear bearing connecting hole; 12, through wires hole; 13, engine connecting hole; 14, force cell joint connecting hole; 15, force cell joint location hole; 16, axle and bracing strut connecting hole; 17, bracing strut and stage body connecting hole.
Embodiment
Below in conjunction with specific embodiment, the present invention is described:
With reference to accompanying drawing 1, to accompanying drawing 3, the cartridge type moving frame of a kind of stringing bearing in the present embodiment comprises cartridge type moving frame 1, linear bearing 2, linear axis 3, bracing strut 6, test-bed body 10.
With reference to accompanying drawing 4 and accompanying drawing 5, cartridge type moving frame two ends are joint flange, on the joint flange at two ends, respectively there are two linear bearing connecting holes 11, on the joint flange of one end, there is engine connecting hole 13, on other end joint flange, have force cell joint connecting hole 14 and force cell joint location hole 15.
Cartridge type moving frame is fixedly connected with engine to be measured by the engine connecting hole on the joint flange of one end and engine coupling bolt 5.
In four linear bearing connecting holes of cartridge type moving frame, be installed with linear bearing 2, and block with back-up ring 4, in order to avoid excessive, move about.The firing chamber central axis of the central axis of linear bearing and engine to be measured, and force cell central axis is in same level, and the central axis of linear bearing is perpendicular to the load-carrying surface of outside load pier.
Two linear axis are respectively through the linear bearing of cartridge type moving frame both sides, and linear axis two ends are arranged in bracing strut connecting hole 16, fix, and block with set nut 7, in order to avoid play by bracing strut.
Bracing strut is arranged on test-bed body by connecting hole 17 use coupling bolts.
During engine ignition work, with movable barrel type moving frame 1 and linear bearing 2 horizontal direction on linear axis 3 of being arranged on cylinder, move freely, the horizontal thrust that engine produces is delivered on force cell through cartridge type moving frame, realize the accurate transmission of thrust, by the horizontal thrust that is arranged on the force cell measurement engine in moving frame.The bearing ball of linear bearing and axle are and contact, and frictional resistance is little, measure highly sensitively, are applied to the thrust measurement precision that can improve engine on test stand.
Claims (1)
1. a cartridge type moving frame for stringing bearing, is characterized in that: comprise cartridge type moving frame, linear bearing, linear axis, bracing strut, test-bed body; Described cartridge type moving frame two ends are joint flange, respectively have two linear bearing connecting holes on the joint flange at two ends, have engine connecting hole on the joint flange of one end, have force cell connecting hole on other end joint flange; Cartridge type moving frame is fixedly connected with engine to be measured by the engine connecting hole on the joint flange of one end; In four linear bearing connecting holes of cartridge type moving frame, be installed with linear bearing, the firing chamber central axis of the central axis of linear bearing and engine to be measured, and force cell central axis is in same level, and the central axis of linear bearing is perpendicular to the load-carrying surface of outside load pier; Two linear axis are respectively through the linear bearing of cartridge type moving frame both sides, and linear axis two ends fix by bracing strut, and bracing strut is fixed on test-bed body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564364.3U CN203479530U (en) | 2013-09-11 | 2013-09-11 | Barrel-type moving frame inlaying linear bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564364.3U CN203479530U (en) | 2013-09-11 | 2013-09-11 | Barrel-type moving frame inlaying linear bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479530U true CN203479530U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320564364.3U Expired - Fee Related CN203479530U (en) | 2013-09-11 | 2013-09-11 | Barrel-type moving frame inlaying linear bearings |
Country Status (1)
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| CN (1) | CN203479530U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132813A (en) * | 2014-08-08 | 2014-11-05 | 中国航天科技集团公司第四研究院四0一所 | Slidable double-cylinder type structure pressure stabilization bin for solid ramjet direct connection test |
| CN107907342A (en) * | 2017-12-18 | 2018-04-13 | 西安航天动力测控技术研究所 | The thrust calibrated in situ device that a kind of canted nozzle axially reinforces |
| CN108106852A (en) * | 2017-12-05 | 2018-06-01 | 西安航天动力测控技术研究所 | A kind of integral flange sleeve test stand for rolling-control engine ground firing |
-
2013
- 2013-09-11 CN CN201320564364.3U patent/CN203479530U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132813A (en) * | 2014-08-08 | 2014-11-05 | 中国航天科技集团公司第四研究院四0一所 | Slidable double-cylinder type structure pressure stabilization bin for solid ramjet direct connection test |
| CN104132813B (en) * | 2014-08-08 | 2016-08-24 | 中国航天科技集团公司第四研究院四0一所 | A kind of slidably double-cylinder type structure voltage stabilizing cabin of Ducted rocket associated mode test |
| CN108106852A (en) * | 2017-12-05 | 2018-06-01 | 西安航天动力测控技术研究所 | A kind of integral flange sleeve test stand for rolling-control engine ground firing |
| CN110259606A (en) * | 2017-12-05 | 2019-09-20 | 西安航天动力测控技术研究所 | A kind of thrust calibrated in situ method that canted nozzle axially reinforces |
| CN108106852B (en) * | 2017-12-05 | 2019-10-22 | 西安航天动力测控技术研究所 | A kind of flange sleeve test stand for rolling-control engine ground firing |
| CN107907342A (en) * | 2017-12-18 | 2018-04-13 | 西安航天动力测控技术研究所 | The thrust calibrated in situ device that a kind of canted nozzle axially reinforces |
| CN107907342B (en) * | 2017-12-18 | 2020-01-14 | 西安航天动力测控技术研究所 | In-situ calibration method for realizing axial stress application of inclined spray pipe by utilizing calibration device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20140312 Termination date: 20210911 |