CN207881950U - A kind of servo mechanism ground experiment upper-stage engine load erecting bed - Google Patents
A kind of servo mechanism ground experiment upper-stage engine load erecting bed Download PDFInfo
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- CN207881950U CN207881950U CN201721404305.4U CN201721404305U CN207881950U CN 207881950 U CN207881950 U CN 207881950U CN 201721404305 U CN201721404305 U CN 201721404305U CN 207881950 U CN207881950 U CN 207881950U
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- rack
- servo mechanism
- erecting bed
- stage engine
- supporting beam
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Abstract
The utility model belongs to servo mechanism ground experiment device, specifically discloses a kind of servo mechanism ground experiment upper-stage engine load erecting bed, it is characterised in that：The load table includes rack and the support base on rack, and multiple support bases are symmetrically mounted on the either above or below of rack；The rack includes footstock, pedestal, supporting beam, bottom girder and reinforcing rib, and pedestal is respectively provided with below bottom girder, and bottom girder is equipped with supporting beam, and reinforcing rib is equipped among supporting beam, footstock is equipped at the top of supporting beam；The support base is by including connecting plate, bearing block and support plate, and for a side bottom of bearing block equipped with support plate, bearing block top is equipped with connecting plate, and the connecting plate of support base and the footstock of rack connect.The load erecting bed is using the downward mounting means of motor power vector, and the more actual installation of approaching to reality engine, eliminating influences caused by upper-stage engine thrust vectoring direction, and improve test has authenticity.
Description
Technical field
The utility model belongs to servo mechanism ground experiment device, and in particular to a kind of servo mechanism ground experiment travelling
Engine loading erecting bed.
Background technology
Rocket upper-stage engine fictitious load erecting bed is to realize that servo performance measures main in ground experiment
Means, it is contemplated that the convenience load simulation testing stand used at present of installation is generally using upper-stage engine nozzle thrust
The form of direction vector vertically upward.However the nozzle thrust direction vector of upper-stage engine is vertically downward when practical flight
, i.e., the thrust vectoring direction of jet pipe vertically downward, is converted into thermal energy, then in the combustion chamber by self-contained propellant
The kinetic energy that high speed sprays gas is converted heat into jet pipe, generates upward repulsion power.
When pivot angle at upper-stage engine is zero, the support force of engine is vertically upward.However when engine is put
When crossing certain angle, apparent difference is had both especially in the case of big swing angle.By taking engine turns over 45 ° to the left as an example,
Motor support power is along 45 ° obliquely of barycenter direction when thrust vectoring is upward, and support force N can be decomposed into G's vertically downward
The component of gravity and horizontal F to the left, horizontal component F is consistent with the direction of motion of engine at this time, as shown in Figure 3.Thrust vectoring
The support force N1 of engine can be decomposed into gravity G vertically downward and horizontal component F1 to the right when downwards, only water this moment
The direction of motion in the direction and engine of dividing power F1 equally is just the opposite.
In order to be consistent with actual flight state, it should carry out decoupling processing to horizontal component, decoupling processing is not only big
The complexity of data processing is increased greatly, and can not rule out the appearance of singular solution, therefore at present not in this way, and
It is to ignore the inconsistent influence brought in upper-stage engine thrust vectoring direction, this undoubtedly reduces test accuracy.
Invention content
The purpose of this utility model is to provide a kind of servo mechanism ground experiment upper-stage engines to load erecting bed, should
Erecting bed is loaded using the downward mounting means of motor power vector, the more actual installation of approaching to reality engine, eliminate because
Influence caused by upper-stage engine thrust vectoring direction, improve test has authenticity.
Realize the technical solution of the utility model aim：A kind of servo mechanism ground experiment upper-stage engine load installation
Platform, the load table include rack and the support base on rack, multiple support bases be symmetrically mounted on rack top or
Lower section.
The rack includes footstock, pedestal, supporting beam, bottom girder and reinforcing rib, is respectively provided with pedestal below bottom girder, on bottom girder
Equipped with supporting beam, it is equipped with reinforcing rib among supporting beam, footstock is equipped at the top of supporting beam.
The support base is by including connecting plate, bearing block and support plate, and a side bottom of bearing block is equipped with support plate, axis
Connecting plate is equipped at the top of bearing, the connecting plate of support base and the footstock of rack connect.
It is respectively provided with a pedestal below four angles of the bottom girder.
It is set on the bottom girder there are two supporting beam, supporting beam is two symmetrically arranged ladder beams.
It is respectively provided with a reinforcing rib between in the middle part of the adjacent curb girder of two supporting beams.
The bearing hole for installing upper-stage engine is provided on the bearing block.
The threaded hole for installing servo mechanism is provided in the support plate.
The advantageous effects of the utility model are：(1) the load erecting bed of the utility model realizes upper-stage engine
Vertically downward, it is true to improve having for test to the thrust vectoring installation direction of jet pipe for the more actual installation of approaching to reality engine
Property.(2) while the mode of the thrust vectoring installation direction of current upper-stage engine jet pipe vertically upward, two kinds of installations can be taken into account
The swaying direction of jet pipe is different in mode.(3) design of horse structure, rack are the important critical pieces for loading erecting bed,
The main placement for undertaking upper-stage engine, support base and servo mechanism, wherein support base undertake upper-stage engine and servo
The support and connection of structure, and realize the consolidation with rack.The pedestal of rack is consolidated by 8 bolts and supporting surface, the top of rack
The consolidation that seat passes through 4 bolts and mating spring washer, plain cushion and support base (containing servo mechanism and upper-stage engine).When installation two
Other polygamy is only needed to cover 4 bolts and mating spring washer, plain cushion when support base (containing servo mechanism and upper-stage engine).(4) it loads
Erecting bed can be extended according to above structure, that is, 4 upper-stage engine jet pipes be installed, wherein 2 thrust vectoring installation sides
To vertically downward, in addition vertically upward, two jet pipes of identical thrust vectoring installation direction are swung 2 thrust vectoring installation directions
Direction is different.The servo mechanism ground experiment of the utility model loads erecting bed and existing load erecting bed phase with upper-stage engine
Than the test data of the simulation for the engine flight state that can more accurately realize, product servo is more nearly live flying
State.
Description of the drawings
Fig. 1 is the dress that a kind of servo mechanism ground experiment upper-stage engine provided by the utility model loads erecting bed
Figure；
Fig. 2 is the schematic diagram of horse structure provided by the utility model；
Fig. 3 is the schematic diagram of support base provided by the utility model；
Fig. 4 is the structural schematic diagram of support base provided by the utility model and rack assembling process；
Fig. 5 is the load erecting bed provided by the utility model that can install 2 upper-stage engines；
Fig. 6 is the load erecting bed provided by the utility model that can install 4 upper-stage engines.
In figure：1. upper-stage engine；2. support base；3. servo mechanism；4. rack；5. footstock；6. pedestal；7 supporting beams；8
Bottom girder；9. reinforcing rib, 10. connecting plates, 11. bearing blocks, 12. support plates.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figure 1, 2, a kind of servo mechanism ground experiment provided by the utility model is loaded with upper-stage engine and is pacified
Platform is filled, which includes support base 2 and rack 4.Rack 4 includes footstock 5, pedestal 6, supporting beam 7, bottom girder 8 and reinforcing rib 9,
It is respectively provided with a pedestal 6 below four angles of bottom girder 8, four pedestals 6 are affixed with bottom girder 8 in a welding manner, welded on bottom girder 8
Connect there are two supporting beam 7, supporting beam 7 is two symmetrically arranged ladder beams, in the middle part of the adjacent curb girder of two supporting beams 7 between it is each
A reinforcing rib 9 is welded, two 7 tops of supporting beam are welded with footstock 5.Threaded hole (the screw thread hole count of 4 M15 is provided on footstock 5
Amount can accordingly increase according to the quantity of upper-stage engine 1), rack 4 and support base 2 are realized by the cooperation of M15 bolts and nuts
It is affixed, the threaded hole of 2 M30 is issued on every pedestal 6, pedestal 6 and branch are realized by the cooperations of M30 bolts and nuts
Support face it is affixed.The motor socket of servo mechanism 3 and control socket are respectively turned in ground experiment test process, controller will
Control instruction is sent to servo mechanism 3, and the piston rod of servo mechanism 3 requires to generate displacement according to control instruction.
As shown in Fig. 1,3,4, support base 2 includes connecting plate 10, bearing block 11 and support plate 12, and 5 are provided in support plate 12
A threaded hole；The side of bearing block 11 is welded with the side of support plate 12, on the both side plate of bearing block 11, adjacent to support plate 12
It respectively opens there are one bearing hole A position；The top of bearing block 11 is welded to connect plate 10.5 studs of servo mechanism 3 pass through support plate
5 threaded holes on 12 realize being fixedly connected for support base 2 and servo mechanism 3；The support shaft of 1 jet pipe of upper-stage engine passes through branch
The bearing hole A realization support bases 2 of bearing block 11 of 2 lower section of support seat and being fixedly connected for 1 jet pipe of upper-stage engine；Support base 2
It is provided with 4 threaded holes on connecting plate 10, being fixedly connected for support base 2 and 4 footstock of rack may be implemented.
It is installed as shown in figure 5, a kind of servo mechanism ground experiment provided by the utility model is loaded with upper-stage engine
2 upper-stage engines 1 are installed, wherein 1 jet pipe of upper-stage engine of 4 top of rack is swung in X-direction, 4 lower section of rack on platform
1 jet pipe of upper-stage engine Z-direction swing.At this point, rack 4 is one, support base 2 is two, and a support base 2 is installed
Above the footstock 5 of rack 4, another support base 2 is mounted on 5 lower section of footstock of rack 4；One is installed on each support base 2
Upper-stage engine 1.
It is installed as shown in figure 5, a kind of servo mechanism ground experiment provided by the utility model is loaded with upper-stage engine
4 upper-stage engines 1 are installed, wherein 21 jet pipes of upper-stage engine of 4 top of rack are respectively in X-direction and Z axis side on platform
To swing, 2 upper-stage engine jet pipes of 4 lower section of rack are swung in Z-direction and X-direction respectively.At this point, rack 4 is one
A, support base 2 is four, and two support bases 2 are mounted on 5 top of footstock of rack 4, and another two support base 2 is mounted on rack 4
The lower section of footstock 5；A upper-stage engine 1 is installed on each support base 2.
The utility model is explained in detail above in conjunction with drawings and examples, but the utility model is not limited to
Embodiment is stated, within the knowledge of a person skilled in the art, the utility model aims can also not departed from
Under the premise of various changes can be made.The prior art may be used in the content not being described in detail in the utility model.
Claims (6)
1. a kind of servo mechanism ground experiment loads erecting bed with upper-stage engine, it is characterised in that：The load table includes rack
(4) and the support base (2) on rack (4), support base (2) are symmetrically mounted on the either above or below of rack (4)；
The rack (4) includes footstock (5), pedestal (6), supporting beam (7), bottom girder (8) and reinforcing rib (9), bottom girder (8) lower section
It is respectively provided with pedestal (6), bottom girder (8) is equipped with supporting beam (7), and reinforcing rib (9), supporting beam (7) top are equipped among supporting beam (7)
Equipped with footstock (5)；
The support base (2) is by including connecting plate (10), bearing block (11) and support plate (12), the side bottom of bearing block (11)
Portion is equipped with support plate (12), and connecting plate (10), connecting plate (10) and the rack (4) of support base (2) are equipped at the top of bearing block (11)
Footstock (5) connection.
2. a kind of servo mechanism ground experiment according to claim 1 loads erecting bed with upper-stage engine, feature exists
In：It is respectively provided with a pedestal (6) below four angles of the bottom girder (8).
3. a kind of servo mechanism ground experiment according to claim 2 loads erecting bed with upper-stage engine, feature exists
In：It is set on the bottom girder (8) there are two supporting beam (7), supporting beam (7) is two symmetrically arranged ladder beams.
4. a kind of servo mechanism ground experiment according to claim 3 loads erecting bed with upper-stage engine, feature exists
In：It is respectively provided with a reinforcing rib (9) between in the middle part of the adjacent curb girder of two supporting beams (7).
5. a kind of servo mechanism ground experiment according to claim 4 loads erecting bed with upper-stage engine, feature exists
In：The bearing hole for installing upper-stage engine (1) is provided on the bearing block (11).
6. a kind of servo mechanism ground experiment according to claim 1 loads erecting bed with upper-stage engine, feature exists
In：The threaded hole for installing servo mechanism (3) is provided in the support plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404305.4U CN207881950U (en) | 2017-10-27 | 2017-10-27 | A kind of servo mechanism ground experiment upper-stage engine load erecting bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721404305.4U CN207881950U (en) | 2017-10-27 | 2017-10-27 | A kind of servo mechanism ground experiment upper-stage engine load erecting bed |
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| CN207881950U true CN207881950U (en) | 2018-09-18 |
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| CN201721404305.4U Active CN207881950U (en) | 2017-10-27 | 2017-10-27 | A kind of servo mechanism ground experiment upper-stage engine load erecting bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834667A (en) * | 2019-04-04 | 2019-06-04 | 北京宇航推进科技有限公司 | A kind of rocket engine sheet-beam structure ground run rack |
| CN113624504A (en) * | 2021-06-29 | 2021-11-09 | 北京精密机电控制设备研究所 | Swimming engine load simulation device and method |
-
2017
- 2017-10-27 CN CN201721404305.4U patent/CN207881950U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834667A (en) * | 2019-04-04 | 2019-06-04 | 北京宇航推进科技有限公司 | A kind of rocket engine sheet-beam structure ground run rack |
| CN109834667B (en) * | 2019-04-04 | 2024-04-19 | 北京宇航推进科技有限公司 | Ground test stand with rocket engine plate rib structure |
| CN113624504A (en) * | 2021-06-29 | 2021-11-09 | 北京精密机电控制设备研究所 | Swimming engine load simulation device and method |
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