CN109533403B - Three-degree-of-freedom load simulation equipment of single-leg recovery rocket landing support mechanism - Google Patents
Three-degree-of-freedom load simulation equipment of single-leg recovery rocket landing support mechanism Download PDFInfo
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- CN109533403B CN109533403B CN201910011829.4A CN201910011829A CN109533403B CN 109533403 B CN109533403 B CN 109533403B CN 201910011829 A CN201910011829 A CN 201910011829A CN 109533403 B CN109533403 B CN 109533403B
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- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G7/00—Simulating cosmonautic conditions, e.g. for conditioning crews
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Abstract
A three-degree-of-freedom load simulation device of a single-leg recovery rocket landing support mechanism relates to a three-degree-of-freedom load simulation device, in particular to a three-degree-of-freedom load simulation device of a single-leg recovery rocket landing support mechanism. The invention aims to solve the problem that the existing equipment can not simulate the conditions of actual flight, landing and the like of a rocket. The upper end of a pressure driving assembly is fixedly connected with the lower surface of the middle part of a cross beam of a supporting rack, the two ends of an upper sliding platform are connected with two supporting legs of the supporting rack in a sliding mode, the two ends of a lower sliding platform are connected with the two supporting legs of the supporting rack in a sliding mode, the lower end of the pressure driving assembly is connected with the upper surface of the upper sliding platform, a yaw support is a vertically arranged rectangular frame, the upper end of the yaw support is rotatably connected with the lower surface of the upper sliding platform through a cylindrical pair, and the lower end of the yaw support is rotatably connected with the upper surface of the lower sliding platform through the cylindrical pair. The invention belongs to the field of aerospace.
Description
Technical Field
The invention relates to three-degree-of-freedom load simulation equipment, in particular to three-degree-of-freedom load simulation equipment of a single-leg recovery rocket landing support mechanism, and belongs to the field of aerospace.
Background
With the rapid development of commercial aerospace, the research of the prior recoverable rocket is in a rapid development stage, the rocket is vertically returned and recovered, the landing range can be reduced, the launching cost can be greatly reduced, the rocket is launched again by supplementing fuel after being returned, the launching time is reduced, the response rate is improved, the load simulation equipment designed at this time is the key in the development process of a ground prototype, and because the simulation of the conditions such as the real flight condition and landing of the rocket cannot be realized, the mechanical properties and the buffering properties of each part need to be tested by auxiliary equipment. And providing data support for the real working condition of the return process through data accumulation.
Disclosure of Invention
The invention provides three-degree-of-freedom load simulation equipment for a single-leg recovery rocket landing support mechanism, which aims to solve the problem that the existing equipment cannot simulate the conditions of actual flight, landing and the like of a rocket.
The technical scheme adopted by the invention for solving the problems is as follows: the invention comprises a supporting frame, a single-leg landing supporting mechanism, an upper sliding platform, a lower sliding platform, a yaw support, a pitching support, an impact acceleration testing platform, a pressure driving assembly, a pitching driving assembly and a yaw driving assembly, wherein the upper end of the pressure driving assembly is fixedly connected with the lower surface of the middle part of a cross beam of the supporting frame, the upper sliding platform and the lower sliding platform are sequentially arranged from top to bottom, the two ends of the upper sliding platform are slidably connected with the two supporting legs of the supporting frame, the two ends of the lower sliding platform are slidably connected with the two supporting legs of the supporting frame, the lower end of the pressure driving assembly is connected with the upper surface of the upper sliding platform, the yaw support is a vertically arranged rectangular frame, the upper end of the yaw support is rotatably connected with the lower surface of the upper sliding platform through a cylindrical pair, and the lower end of the yaw support is rotatably connected with the upper surface of the lower, the yaw driving assembly is connected with the lower end of the yaw support, the single-leg landing supporting mechanism is installed in the yaw support through the pitching driving assembly, and the impact acceleration testing platform is fixedly installed at the bottom of the supporting rack.
Further, the pressure driving assembly comprises a pressure loading motor supporting seat, a pressure loading motor and a universal ball bearing, the fixed end of the pressure loading motor is fixedly connected with the middle of the lower surface of the cross beam of the supporting frame through the pressure loading motor supporting seat, and the loading end of the pressure loading motor is connected with the middle of the upper surface of the upper sliding platform through the universal ball bearing.
Furthermore, the yaw driving assembly comprises a yaw driven gear, a yaw driving gear and a yaw driving motor, the yaw driven gear is fixedly connected with the lower end of the yaw support, the yaw driving motor is fixedly installed on the lower sliding platform, the yaw driving gear is fixedly connected with a rotating shaft of the yaw driving motor, and the yaw driving gear is meshed with the yaw driven gear.
Furthermore, every single move drive assembly includes every single move drive gear, every single move driving motor, every single move driven gear and every single move support rod rotation connection, and every single move support rod is installed in the yaw support through every single move support rod, and every single move driving motor fixed mounting is on every single move support, every single move drive gear and every single move driving motor's axis of rotation fixed connection, every single move driven gear and every single move driven gear meshing, single move landing support mechanism's stiff end and every single move support rod rotation connection.
Furthermore, every single move drive assembly still includes a plurality of U type bolts, and every single move support is connected with every single move support connecting rod through a plurality of U type bolts.
The invention has the beneficial effects that: the invention realizes the simulation of different loads by using the driving motor, changes the posture by using the serial connection mode, realizes the simulation of different working conditions by independently controlling the pitching angle and the yawing angle by using the two motors, overcomes the defects of the experimental equipment of the ground prototype of the existing landing support mechanism and the like, and completes the research and development of the equipment which gives consideration to the three-degree-of-freedom motion of the single-leg support mechanism and provides the simulation of different working conditions.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of a pitch bracket.
Detailed Description
The first embodiment is as follows: the three-degree-of-freedom load simulation equipment for the single-leg recovery rocket landing support mechanism is described with reference to fig. 1, and comprises a support frame 3, a single-leg landing support mechanism 7, an upper sliding platform 5 and a lower sliding platform 15, and further comprises a yaw support 6, a pitching support 11, an impact acceleration test platform 17, a pressure driving assembly, a pitching driving assembly and a yaw driving assembly, wherein the upper end of the pressure driving assembly is fixedly connected with the lower surface of the middle part of a beam 3-1 of the support frame 3, the upper sliding platform 5 and the lower sliding platform 15 are sequentially arranged from top to bottom, the two ends of the upper sliding platform 5 are slidably connected with two supporting legs 3-2 of the support frame 3, the two ends of the lower sliding platform 15 are slidably connected with the two supporting legs 3-2 of the support frame 3, and the lower end of the pressure driving assembly is connected with the upper surface of the upper sliding platform 5, yaw support 6 is the rectangular frame of vertical setting, and yaw support 6's upper end and last sliding platform 5's lower surface pass through the cylinder pair and rotate and be connected, and yaw support 6's lower extreme passes through the cylinder pair and is connected with the upper surface rotation of lower sliding platform 15, yaw drive assembly is connected with yaw support 6's lower extreme, and single leg landing supporting mechanism 7 passes through pitch drive assembly installs in yaw support 6, and impact acceleration test platform 17 fixed mounting is in the bottom of supporting frame 3.
The second embodiment is as follows: the embodiment is described with reference to fig. 1, and the pressure driving assembly of the three-degree-of-freedom load simulation device of the single-leg recovery rocket landing support mechanism in the embodiment includes a pressure loading motor support base 1, a pressure loading motor 2 and a universal ball bearing 4, wherein a fixed end of the pressure loading motor 2 is fixedly connected with the middle of the lower surface of a cross beam 3-1 of a support frame 3 through the pressure loading motor support base 1, and a loading end of the pressure loading motor 2 is connected with the middle of the upper surface of an upper sliding platform 5 through the universal ball bearing 4.
Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: the yaw driving assembly of the three-degree-of-freedom load simulation device of the single-leg recovery rocket landing support mechanism according to the present embodiment is described with reference to fig. 1, and includes a yaw driven gear 13, a yaw driving gear 14, and a yaw driving motor 16, where the yaw driven gear 13 is fixedly connected to a lower end of a yaw support 6, the yaw driving motor 16 is fixedly mounted on a lower sliding platform 15, the yaw driving gear 14 is fixedly connected to a rotating shaft of the yaw driving motor 16, and the yaw driving gear 14 is meshed with the yaw driven gear 13.
Other components and connections are the same as those in the first embodiment.
The fourth concrete implementation mode: the embodiment is described with reference to fig. 1 and 2, and the pitching driving assembly of the three-degree-of-freedom load simulation device of the single-leg recovery rocket landing support mechanism in the embodiment includes a pitching driving gear 8, a pitching driving motor 9, a pitching driven gear 10 and a pitching support 11, the pitching support 11 is installed in the yawing support 6 through a pitching support connecting rod 6-1, the pitching driving motor 9 is fixedly installed on the pitching support 11, the pitching driving gear 8 is fixedly connected with a rotating shaft of the pitching driving motor 9, the pitching driven gear 10 is fixedly connected with the single-leg landing support mechanism 7, the pitching driving gear 8 is meshed with the pitching driven gear 10, and a fixed end of the single-leg landing support mechanism 7 is rotatably connected with the pitching support connecting rod.
The fifth concrete implementation mode: the embodiment is described with reference to fig. 1 and fig. 2, the pitching driving assembly of the three-degree-of-freedom load simulation device of the single-leg recovery rocket landing support mechanism in the embodiment further includes a plurality of U-shaped bolts 12, and the pitching support 11 is connected with the pitching support connecting rod 6-1 through the plurality of U-shaped bolts 12.
Other components and connection relationships are the same as those in the fourth embodiment.
Principle of operation
The pressure loading motor supporting seat 1 is connected with the supporting frame 3 through a bolt, the pressure loading motor supporting seat 1 is connected with the pressure loading motor 2 through a cylindrical pin, the output end of the pressure loading motor 2 is connected with the upper sliding platform 5 through a universal ball bearing 4 to ensure that the output force is consistent with the movement direction, the upper sliding platform 5 is connected with the lower sliding platform 15 through a cylindrical pair and a yaw support 6, the yaw support 6 is in rotation transmission with the lower sliding platform 15 through a conical gear, a yaw driven gear 13 is fixed on the yaw support 6 through a screw, a yaw driving gear 14 is connected with a yaw driving motor 16 through a key connection, the yaw driving motor 16 is fixed on the lower sliding platform 15 to realize yaw angle adjustment through motor control, and the upper sliding platform 5, the lower sliding platform 15 and the supporting frame 3 are limited through sliding guide rails to realize vertical movement, a pitching support connecting rod is arranged in the middle of the yawing support 6, a pitching driven gear 10 is arranged, the pitching support 11 and the pitching support connecting rod are connected through a cylindrical pair, a pitching driving gear 8 is arranged on a pitching driving motor 9, the pitching driving motor 9 is arranged on the pitching support 11, and the single-leg landing support mechanism 7 is driven to realize pitching angle adjustment through the rotation of the motor. After the angle adjustment is finished, the first brake flange 18 and the second brake flange 19 are fixed, and an impact acceleration test platform 17 is installed on the ground to measure the impact load in the landing process.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a three degree of freedom load simulation equipment of single leg recovery rocket landing supporting mechanism, it includes supporting rack (3), single leg landing supporting mechanism (7), goes up sliding platform (5) and lower sliding platform (15), its characterized in that: the three-degree-of-freedom load simulation equipment of the single-leg recovery rocket landing support mechanism further comprises a yaw support (6), a pitching support (11), an impact acceleration test platform (17), a pressure driving assembly, a pitching driving assembly and a yaw driving assembly, wherein the upper end of the pressure driving assembly is fixedly connected with the lower surface of the middle part of a cross beam (3-1) of the support frame (3), an upper sliding platform (5) and a lower sliding platform (15) are sequentially arranged from top to bottom, two ends of the upper sliding platform (5) are in sliding connection with two supporting legs (3-2) of the support frame (3), two ends of the lower sliding platform (15) are in sliding connection with two supporting legs (3-2) of the support frame (3), the lower end of the pressure driving assembly is connected with the upper surface of the upper sliding platform (5), the yaw support (6) is a vertically-arranged rectangular frame, the upper end of driftage support (6) is passed through the cylinder pair with the lower surface of last sliding platform (5) and is rotated and be connected, and the lower extreme of driftage support (6) passes through the cylinder pair and is connected with the upper surface rotation of lower sliding platform (15), the drive assembly that drifts is connected with the lower extreme of driftage support (6), and single leg landing supporting mechanism (7) pass through every single leg drive assembly installs in driftage support (6), and impact acceleration test platform (17) fixed mounting is in the bottom of supporting frame (3).
2. The three-degree-of-freedom load simulation device of the landing support mechanism of the single-leg recovery rocket according to claim 1, wherein: the pressure driving assembly comprises a pressure loading motor supporting seat (1), a pressure loading motor (2) and a universal ball bearing (4), the fixed end of the pressure loading motor (2) is fixedly connected with the middle of the lower surface of a cross beam (3-1) of the supporting rack (3) through the pressure loading motor supporting seat (1), and the loading end of the pressure loading motor (2) is connected with the middle of the upper surface of the upper sliding platform (5) through the universal ball bearing (4).
3. The three-degree-of-freedom load simulation device of the landing support mechanism of the single-leg recovery rocket according to claim 1, wherein: the yaw driving assembly comprises a yaw driven gear (13), a yaw driving gear (14) and a yaw driving motor (16), the yaw driven gear (13) is fixedly connected with the lower end of the yaw support (6), the yaw driving motor (16) is fixedly installed on a lower sliding platform (15), the yaw driving gear (14) is fixedly connected with a rotating shaft of the yaw driving motor (16), and the yaw driving gear (14) is meshed with the yaw driven gear (13).
4. The three-degree-of-freedom load simulation device of the landing support mechanism of the single-leg recovery rocket according to claim 1, wherein: every single move drive assembly includes every single move drive gear (8), every single move driving motor (9), every single move driven gear (10) and every single move support link and rotate to be connected, every single move support link (8), every single move driving motor (9) and every single move support (11), every single move support link (6-1) is installed in yaw support (6) in every single move support (11), every single move driving motor (9) fixed mounting is on every single move support (11), every single move driving gear (8) and every single move driving motor (9) axis of rotation fixed connection, every single move driven gear (10) and single leg landing supporting mechanism (7) fixed connection, every single move driving gear (8) and every single move driven gear (10) meshing, the stiff end and the every single move of.
5. The three-degree-of-freedom load simulation device of the landing support mechanism of the single-leg recovery rocket according to claim 4, wherein: the pitching driving assembly further comprises a plurality of U-shaped bolts (12), and the pitching support (11) is connected with the pitching support connecting rod (6-1) through the plurality of U-shaped bolts (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910011829.4A CN109533403B (en) | 2019-01-07 | 2019-01-07 | Three-degree-of-freedom load simulation equipment of single-leg recovery rocket landing support mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910011829.4A CN109533403B (en) | 2019-01-07 | 2019-01-07 | Three-degree-of-freedom load simulation equipment of single-leg recovery rocket landing support mechanism |
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| CN109533403A CN109533403A (en) | 2019-03-29 |
| CN109533403B true CN109533403B (en) | 2021-07-06 |
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| CN103253385B (en) * | 2013-05-29 | 2015-12-02 | 哈尔滨工业大学 | A kind of space six degree of freedom is controlled with weightless flight device |
| CN103600856A (en) * | 2013-11-26 | 2014-02-26 | 北京卫星环境工程研究所 | Spacecraft vertical passive separation test equipment |
| US20160046372A1 (en) * | 2014-05-23 | 2016-02-18 | L'garde, Inc. | Rocket Morphing Aerial Vehicle |
| KR101755279B1 (en) * | 2015-12-24 | 2017-07-07 | 한국항공우주연구원 | vacuum releasing apparatus for high altitude simulation test equipment |
| CN106781831A (en) * | 2016-12-29 | 2017-05-31 | 北京空间机电研究所 | A kind of lunar surface landing shock analogue experiment installation |
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