CN115355773A - Leveling force measuring device for rocket test - Google Patents
Leveling force measuring device for rocket test Download PDFInfo
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- CN115355773A CN115355773A CN202210881994.7A CN202210881994A CN115355773A CN 115355773 A CN115355773 A CN 115355773A CN 202210881994 A CN202210881994 A CN 202210881994A CN 115355773 A CN115355773 A CN 115355773A
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- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 230000003068 static effect Effects 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000009471 action Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
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- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a leveling force measuring device for a rocket test, which comprises a lower bracket, an upper bracket, a lifter, a force measuring sensor, a spherical hinge guide mechanism, a force bearing plate and at least four supporting and adjusting mechanisms. The bottom end of the elevator is arranged on the lower support, the top end of the elevator penetrates through the upper support and then is connected with the force measuring sensor, and the other end of the force measuring sensor is connected with the spherical hinge guide mechanism and the bearing plate in series; each supporting and adjusting mechanism is uniformly distributed on the periphery of the spherical hinge guide mechanism, the bottom of the supporting and adjusting mechanism is arranged on the upper support, and the top of the supporting and adjusting mechanism is used for supporting the force bearing plate. The ball joint guide mechanism at least comprises a ball head arranged on the bearing plate and a ball socket arranged on the force measuring sensor. The support adjusting mechanism is lowered to be far away from the bearing plate, and the lifter is driven to drive the force measuring sensor, the ball head and the ball socket to perform lifting action, so that the leveling of each supporting leg of the rocket is realized; after the bearing plate is supported by the support adjusting mechanism, the ball socket is driven to be lowered by the lifter to be separated from the ball head, so that a static ignition test is carried out on the rocket.
Description
Technical Field
The invention relates to the technical field of rocket tests, in particular to a leveling force measuring device for a rocket test.
Background
In recent years, the vertical take-off and landing test is regarded as a key step in the development process of the recoverable rocket technology at home and abroad. At present, a launching support system is basically designed in a customized non-standard mode, but the general scheme, the size, the weight and the like of each test rocket are different, so that the current launching support system cannot meet the requirements of adjustment and force measurement before vertical take-off and landing tests of various rockets.
Therefore, the leveling force measuring device for the rocket test, which can adapt to different diameters and takeoff masses, needs to be provided.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a leveling force measuring device for a rocket test, which adopts a modular design idea, has a compact integral structure, is simple and reliable to operate, can realize the levelness adjustment and the gravity measurement of the rocket after being rapidly deployed in the field, and meets the levelness adjustment and the gravity measurement requirements before the vertical take-off and landing test of the rocket.
The invention provides a leveling force measuring device for a rocket test, which is used for supporting a supporting leg of a rocket to be tested and comprises a lower support, an upper support, a lifter, a force measuring sensor, a spherical hinge guide mechanism, a force bearing plate and at least four supporting and adjusting mechanisms, wherein the lower support is fixedly connected with the upper support through a bearing plate; the bottom end of the upper bracket is connected with the top end of the lower bracket; the bottom end of the lifter is arranged on the lower support, and the top end of the lifter penetrates through the upper support; the lifting part of the lifter penetrates through the upper bracket and then is connected with the force measuring sensor, and the other end of the force measuring sensor is connected with the spherical hinge guide mechanism and the bearing plate in series; each supporting and adjusting mechanism is uniformly distributed on the periphery of the spherical hinge guide mechanism, the bottom of each supporting and adjusting mechanism is arranged on the upper support, and the top of each supporting and adjusting mechanism is used for supporting the force bearing plate;
the ball joint guide mechanism at least comprises a ball head and a ball socket; the ball head is arranged at the bottom of the bearing plate, and the ball socket is arranged at the top of the force transducer; the support adjusting mechanism is lowered to be far away from the bearing plate, the lifter is driven to move, and the force measuring sensor, the ball head and the ball socket are driven to lift, so that the height of the bearing plate is changed, and the leveling of each supporting leg of the rocket is realized; the gravity of the rocket can be measured through the force measuring sensor after the rocket is leveled;
the supporting and adjusting mechanism is heightened to support the force bearing plate, the lifter is driven to be lowered, the ball socket and the ball head can be separated from each other to form a gap, so that a static ignition test is carried out on the rocket, and the force measuring sensor is protected.
In one embodiment, the ball joint guide mechanism further comprises a ball head seat, a ball head ring and a guide sleeve; one end of the ball head is connected with the force bearing plate through the ball head seat, and the other end of the ball head is limited in the ball socket by the ball head ring; the guide sleeve is arranged between the ball socket and the upper bracket; the outer annular surface of the guide sleeve is fixedly connected with the upper bracket, and the inner annular surface of the guide sleeve is abutted against the outer annular surface of the ball socket, so that the ball socket can slide along the guide sleeve under the driving of the elevator.
In one embodiment, there is a space between the ball ring and the ball head in the direction of movement of the ball head; therefore, in the static ignition test stage of the rocket, the ball head can be separated from the ball socket and then limited by the ball head ring.
In one embodiment, an oilless shaft sleeve is arranged between the inner ring of the guide sleeve and the ball socket, and a compression ring is arranged at the top of the oilless shaft sleeve; the annular bottom in the uide bushing is equipped with and is used for supporting the brace table of oilless axle sleeve, the clamping ring will oilless axle sleeve compresses tightly the brace table.
In the above embodiment, each of the support adjusting mechanisms includes a spiral support seat, a spiral sleeve, a bolt, and a nut, which are disposed on the upper bracket; one side of the spiral sleeve is arranged in the spiral support in a threaded connection mode, and the other side of the spiral sleeve is used for supporting the bearing plate; the bolt sequentially penetrates through the bearing plate, the spiral support and the spiral sleeve and then is connected with the nut arranged at the bottom of the upper support;
an operating rod is arranged on one side of the spiral sleeve close to the bearing plate; the operating rod is driven to enable the spiral sleeve to ascend or descend relative to the spiral support so as to support or separate the bearing plate.
In one embodiment, the end of the screw sleeve for supporting the bearing plate is a ball head structure, and a ball socket cover matched with the ball head structure is further arranged between the ball head structure and the bearing plate; the force bearing plate is stably supported by the screw sleeve through the ball socket cover.
In one embodiment, the outer wall of the rod part of the bolt is arranged at a distance from the inner wall of the screw sleeve so as to avoid clamping of the bolt and the screw sleeve.
In one embodiment, a washer is provided between the bolt cap of the bolt and the messenger.
In one embodiment, the gasket includes a spherical upper gasket and a spherical bowl-shaped lower gasket disposed in cooperation with each other.
In one embodiment, the leveling force measuring device for rocket test further comprises a cylindrical protective cover; the top of the protective cover is connected with the edge of the bearing plate, and the inner wall of the protective cover is respectively connected with the upper bracket; and frames for operators to climb are respectively arranged on the peripheries of the upper bracket and the lower bracket.
The leveling and force-measuring device for the rocket test is in a modular design, has a compact structure, is simple and reliable to operate, can be used for leveling the supporting process of the rocket, can be used for measuring the gravity of the rocket through the force-measuring sensor, supports the rocket by utilizing the supporting and adjusting mechanism arranged at the periphery of the force-measuring sensor after the gravity measurement is finished, and reduces the force-measuring sensor by utilizing the lifter to separate the ball socket from the ball head, so that the display of the force-measuring sensor is reset to zero, and the force-measuring sensor is prevented from being damaged when the rocket is subjected to a static ignition test.
Those skilled in the art will recognize additional features and advantages upon reading the detailed description, and upon viewing the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a rocket being supported by a leveling force-measuring device for rocket tests according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a leveling force-measuring device for rocket tests according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a ball-and-socket joint guide mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a support adjustment mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic external view of a leveling force-measuring device for rocket testing according to an embodiment of the present invention;
fig. 6 is a schematic diagram of 6 support adjustment mechanisms provided in the embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. Spatially relative terms such as "under," "below," "at \8230," "lower," "above," "at \8230," "upper," and the like are used for convenience in description to explain the positioning of one element relative to a second element, indicating that the terms are intended to encompass different orientations of the device in addition to different orientations than those illustrated in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.
Referring to fig. 1, the invention provides a leveling force-measuring device 100 for rocket test, which is used for supporting the supporting legs of a rocket 200 to be tested. If three rocket supporting legs 300 are arranged, the leveling force measuring device 100 provided by the invention is respectively arranged at the corresponding position of each supporting leg 300 so as to realize the supporting and leveling of the rocket. The leveling force measuring device for the rocket test can be completely suitable for supporting rockets with various diameters, can be provided with corresponding leveling force measuring devices according to the number and the positions of the supporting legs of the rocket, is simple and reliable to operate, can be rapidly deployed in the field, has higher flexibility and has wider application range.
Referring to fig. 2, the leveling and force measuring device for rocket test provided by the invention is used for supporting the supporting legs of the rocket to be tested, and comprises a lower bracket 1, an upper bracket 2, a lifter 3, a force measuring sensor 4, a spherical hinge guide mechanism 5, a force bearing plate 6 and at least four supporting and adjusting mechanisms 7. The upper support 2 is connected with the lower support 1, the bottom end of the lifter 3 is arranged on the lower support 1, the top end of the lifter is arranged on the upper support 2, the liftable part of the lifter 3 penetrates through the upper support 2 and then is connected with the force measuring sensor 4, and the other end of the force measuring sensor 4 is connected with the spherical hinge guide mechanism 5 and the force bearing plate 6 in series. The supporting and adjusting mechanisms 7 are uniformly distributed on the periphery of the spherical hinge guide mechanism 5, the bottom of each supporting and adjusting mechanism 7 is arranged on the upper support 2, and the top of each supporting and adjusting mechanism 7 is used for supporting the bearing plate 6. It should be noted that there is no connection relationship between the support adjusting mechanism 7 and the bearing plate 6, and the support adjusting mechanism 7 is only used for supporting the bearing plate 6.
The ball joint guide mechanism 5 at least comprises a ball head 51 and a ball socket 52. One end of the ball head 51 is arranged at the bottom of the bearing plate 6, and the other end is in matched butt joint with a ball socket 52 arranged at the top of the load cell 4.
Specifically, the support adjusting mechanism 7 is adjusted to be away from the bearing plate 6 by lowering, namely the gravity of the rocket is completely carried by the spherical hinge guide mechanism 5. And then the lifter 3 is driven to act to drive the force-measuring sensor 4, the ball head 51 and the ball socket 52 to carry out lifting action so as to change the height of the force-bearing plate 6, thereby realizing the height adjustment of each supporting leg of the rocket and leveling the rocket to be tested. After the rocket is leveled, the gravity of the rocket can be measured through the load cells 4 of all the supporting legs.
After the gravity of the rocket is measured, the supporting and adjusting mechanism 7 can be heightened to support the bearing plate 6, and after the stable support of the rocket is completed, the lifter 3 is driven to lower. Since the ball 51 is connected to the force-bearing plate 6, only the ball socket 52 and the load cell 4 will be lowered with the lift 3, so that the ball socket 52 is disengaged from the ball 51 and a gap is formed. And (3) lowering the lifter 3 to enable the ball head 51 and the ball socket 52 to form a gap of 10mm to 15mm, and then the load of the rocket is transmitted to each supporting and adjusting mechanism 7 through the bearing plate 6 and then transmitted to the upper bracket and the lower bracket, so that the load sensor 4 and the lifter 5 are prevented from being damaged by vibration in the static ignition test of the rocket.
In order to reduce the operation difficulty on site, the electric wrench can be used for driving the speed reducer to drive the elevator to move, so that the elevator drives the bearing plate to lift and regulate, and the height adjusting function of the rocket supporting leg is realized.
The leveling force measuring device for the rocket test is used for supporting the supporting legs of the rocket. That is, one leveling force measuring device of the present invention is provided under each leg. The leveling mode can be that the heights of the supporting legs are adjusted by jointly adjusting the lifters of the leveling force measuring devices, so that the rocket is leveled, and the gravity of the rocket is obtained according to the force measuring sensors of the leveling force measuring devices after leveling. After the gravity of the rocket is obtained, each support adjusting mechanism is adjusted to reliably support the bearing plate, and then the lifter is operated to drive the force measuring sensor and the ball socket to descend, so that the ball head and the ball socket can be separated, and a static ignition test of the rocket can be carried out.
The leveling force measuring device for the rocket test adopts a module design, has the advantages of less parts, convenience in installation and simplicity and reliability in operation, is very suitable for the requirement of the rocket vertical take-off and landing test on maneuverability, can meet the leveling precision of less than or equal to 0.05 degrees, and meets the technical requirement that a force measuring sensor cannot be damaged during the rocket static ignition test.
In the above embodiment, the upper and lower frames are bent using steel plates, and ribbed plates are welded to the inside and outside to reinforce the structural strength, and the upper and lower frames are connected by bolt sets.
Referring to fig. 2 and 3, further, the ball joint guide mechanism 5 further includes a ball socket 53, a ball collar 54, and a guide sleeve 55. One end of the ball 51 is connected with the force bearing plate 6 through a ball seat 53, and the other end is limited in the ball socket 52 by a ball ring 54. The guide sleeve 55 is disposed between the ball socket 52 and the upper bracket 2 for guiding the up and down movement of the ball socket 52. Specifically, the outer annular surface of the guide bush 55 is connected to the upper bracket 1 by a fixing bolt, and the inner annular surface abuts against the outer annular surface of the ball 52, so that the ball 52 can slide along the inner annular surface of the guide bush 55 by the driving of the lifter 3. The leveling force measuring device for the rocket test can prevent the ball socket from deviating under the guiding action of the guide sleeve, and ensures that the ball socket and the ball head can be reliably butted. The ball head is limited in the ball socket by the ball head ring, and reliable butt joint of the ball head and the ball socket is further ensured.
In one embodiment, the ball head 51 has a distance X between the ball head ring 54 and the ball head 51 in the moving direction of the ball head 51, and the distance X is 15mm to 20mm. That is, the ball 51 has a certain moving space between the ball ring 54 and the ball socket 52 in the moving direction of the ball 51. Therefore, in the stage of carrying out static ignition test on the rocket, the ball head 51 can be separated from the ball socket 52 and then limited by the ball head ring 54, so that not only can the gravity load of the rocket be prevented from being transmitted to the force transducer and the lifter, but also the ball head can be prevented from being separated from the limit of the ball socket and the ball head ring.
With continued reference to fig. 3, further, in order to reduce friction and surface wear between the outer wall of the ball socket and the guide sleeve, an oilless bushing 56 may be provided between the inner ring of the guide sleeve 55 and the ball socket 52, and a pressing ring 57 may be provided on the top of the oilless bushing 56. One side of the press ring 57 is disposed on the top of the guide sleeve 55 through a fixing bolt, and the other side of the press ring 57 presses the oilless bushing 56, and the press ring 57 is used to limit the displacement of the oilless bushing 56 in the axial direction (lifting direction). Specifically, a support table for supporting the oilless bushing 56 is provided at the bottom of the inner annular surface of the guide sleeve 55, and the oilless bushing 56 is pressed against the support table by the pressing ring 57, thereby preventing the oilless bushing 56 from moving along with the ball socket 52.
The oilless shaft sleeve in the embodiment of the invention is made of copper.
Referring to fig. 4, in any of the above embodiments, each support adjustment mechanism includes a screw support 71 provided to the upper bracket 2, a screw sleeve 72, a bolt 73, and a nut 74. One side of the screw sleeve 72 is provided with an external thread, the screw thread support is provided with an internal thread matched with the external thread of the screw sleeve 72, the screw sleeve 72 is arranged in the screw support 71 in a threaded connection mode, and the other side of the screw sleeve 72 is used for supporting the bearing plate 6. In order to prevent the displacement of the screw sleeve 72 when supporting the rocket, the force-bearing plate 6, the screw mount 71 and the screw sleeve 72 are sequentially inserted through the bolts 73 and then connected to the nuts 74 provided at the bottom of the upper bracket 1, so that the screw sleeve and the screw mount can be stably restrained between the upper bracket 1 and the force-bearing plate 6. When the support of the support adjusting mechanism needs to be released, the connection between the bolt and the nut can be released, and then the spiral sleeve is driven to descend until the spiral sleeve is separated from the bearing plate.
Further, an operating rod 721 is arranged on one side of the screw sleeve 72 close to the bearing plate 6. In order to facilitate the lifting of the screw sleeve 72, the screw sleeve 72 can be lifted or lowered relative to the screw support 71 by driving the operating rod 721 to support or separate the force bearing plate 6.
In one embodiment, the end of the screw sleeve 72 for supporting the force bearing plate 6 is a bulb structure, a bulb cover 75 matched with the bulb structure is further arranged between the bulb structure and the force bearing plate 6, and a fixing ring 77 is further arranged on the periphery of the bulb structure of the screw sleeve 72. The ball cap 75 and the fixing ring 77 are connected by the fixing bolt, and the ball structure of the screw sleeve 72 is limited between the two. The diameter of the ball socket cover 75 is larger than that of the ball head structure of the screw sleeve 72, so that the stress area between the ball socket cover 75 and the bearing plate 6 can be increased, and the screw sleeve 72 can stably support the bearing plate 6 through the ball socket cover 75.
The ball head structure of the spiral sleeve provided by the embodiment of the invention is connected with the force bearing plate through the ball socket cover, so that the direct contact between the spiral sleeve and the force bearing plate is avoided, and the contact position between the force bearing plate and the spiral sleeve is protected to a certain extent. Under the heavy load that produces after the rocket ignition, the ball socket lid can protect the spiral shell, prevents that the position of spiral shell and bearing plate local contact from taking place to warp, also can avoid the aperture of spiral shell to change simultaneously.
Further, the outer wall of the rod part of the bolt 73 and the inner wall of the spiral sleeve 72 are arranged at intervals, so that clamping stagnation or locking cannot occur between the bolt and the spiral sleeve when the bearing plate inclines, and the influence on the precision of rocket gravity testing is avoided.
In one embodiment, in view of the fact that the bolt 73 passes through the bearing plate 6 and then passes through the screw sleeve 72 and the screw seat 71, in order to prevent damage caused by excessive local pressure between the bolt 73 and the bearing plate 6, a washer 76 can be arranged between the bolt cap of the bolt 73 and the bearing plate 6 so as to increase the bearing area of the bolt and the bearing plate. The washer 76 may be an annular washer or may be formed by mating a spherical upper washer and a spherical bowl-shaped lower washer. The gasket formed by the matching arrangement of the spherical upper gasket and the spherical bowl-shaped lower gasket can use a certain angle of deflection.
Referring to fig. 4 and 5 together, in one embodiment, the leveling force measuring device for rocket tests of the present invention further comprises a cylindrical protective cover 8. The top of the protective cover 8 is connected with the edge of the bearing plate 6 through a fixing bolt, and the inner wall of the protective cover 8 is connected with the upper bracket 2 through a fixing bolt respectively. The periphery of upper bracket 2 is equipped with the frame 21 that supplies the operator to climb, and the periphery of lower carriage 1 is equipped with the frame 11 that supplies the operator to climb.
According to the leveling force measuring device for the rocket test, the protective cover is arranged outside the part, close to the bearing plate, of the upper support, and can protect and protect the spherical hinge guide mechanism and the support adjusting mechanism. The frames are arranged on the peripheries of the upper support and the lower support, so that an operator can conveniently climb in place and then adjust the operating rod, and further the lifting control of the spiral sleeve is realized.
The screw pair of the support adjusting structure and the screw pair of the lifter in the embodiment of the invention have self-locking capability, and do not slide vertically when the upper bearing plate is subjected to axial load, so that the operation safety of the leveling test device for the rocket test can be ensured.
Referring to fig. 6, in order to lift the support of the rocket by the support adjusting mechanisms, the number of the support adjusting mechanisms may be increased appropriately. For example, as shown in fig. 6, 6 support adjusting mechanisms may be uniformly arranged on the periphery of the spherical hinge guide mechanism, so that the support stability of the medium-sized and large-sized rockets is obviously improved.
The above-described embodiments of the invention can be combined with each other and have corresponding technical effects.
The leveling force measuring device for the rocket test adopts a modular design, has a compact structure, is simple and reliable to operate, can realize the levelness adjustment and the gravity measurement of the rocket after being rapidly deployed in the field, and meets the levelness adjustment and the gravity measurement requirements before the vertical take-off and landing test of the rocket. The device not only can realize the leveling of the rocket supporting process, but also can measure the gravity of the rocket through the force cell, and after the gravity measurement is finished, the rocket is supported by the support adjusting mechanism arranged at the periphery of the force cell, and then the force cell is lowered by the lifter to separate the ball socket from the ball head, so that the display of the force cell is reset to zero, and the phenomenon that the force cell is damaged when the rocket is subjected to a static ignition test is avoided
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A leveling force measuring device for a rocket test is used for supporting legs of a rocket to be tested and is characterized by comprising a lower support, an upper support, a lifter, a force measuring sensor, a spherical hinge guide mechanism, a force bearing plate and at least four supporting and adjusting mechanisms; the bottom end of the upper bracket is connected with the top end of the lower bracket; the bottom end of the lifter is arranged on the lower support, and the top end of the lifter penetrates through the upper support; the lifting part of the lifter penetrates through the upper support and then is connected with the force measuring sensor, and the other end of the force measuring sensor is connected with the spherical hinge guide mechanism and the bearing plate in series; each supporting and adjusting mechanism is uniformly distributed on the periphery of the spherical hinge guide mechanism, the bottom of each supporting and adjusting mechanism is arranged on the upper support, and the top of each supporting and adjusting mechanism is used for supporting the force bearing plate;
the ball joint guide mechanism at least comprises a ball head and a ball socket; the ball head is arranged at the bottom of the bearing plate, and the ball socket is arranged at the top of the force transducer;
the support adjusting mechanism is lowered to be far away from the bearing plate, the lifter is driven to move, and the force measuring sensor, the ball head and the ball socket are driven to lift, so that the height of the bearing plate is changed, and the leveling of each supporting leg of the rocket is realized; the gravity of the rocket can be measured through the force measuring sensor after the rocket is leveled;
the support adjusting mechanism is heightened to support the bearing plate, the lifter is driven to be lowered, the ball socket and the ball head can be separated from each other to form a gap, so that a static ignition test is carried out on the rocket, and the force measuring sensor is protected.
2. A rocket test leveling force measuring device according to claim 1 wherein said ball joint guide mechanism further comprises a ball cup, a ball collar and a guide sleeve; one end of the ball head is connected with the force bearing plate through the ball head seat, and the other end of the ball head is limited in the ball socket by the ball head ring;
the guide sleeve is arranged between the ball socket and the upper bracket; the outer annular surface of the guide sleeve is fixedly connected with the upper bracket, and the inner annular surface of the guide sleeve is abutted against the outer annular surface of the ball socket, so that the ball socket can slide along the guide sleeve under the driving of the elevator.
3. A leveling force-measuring device for rocket tests according to claim 2, wherein there is a space between the ball head ring and the ball head in the moving direction of the ball head; therefore, in the stage of carrying out static ignition test on the rocket, the ball head can be limited by the ball head ring after being separated from the ball socket.
4. A leveling force measuring device for a rocket test according to claim 3, wherein an oilless bushing is arranged between the inner ring of the guide sleeve and the ball socket, and a pressure ring is arranged at the top of the oilless bushing;
the annular bottom in the uide bushing is equipped with and is used for supporting the brace table of oilless axle sleeve, the clamping ring will oilless axle sleeve compresses tightly the brace table.
5. The leveling force-measuring device for the rocket test according to any one of claims 1 to 4, wherein each of the support adjusting mechanisms comprises a screw support, a screw sleeve, a bolt and a nut arranged on the upper bracket;
one side of the spiral sleeve is arranged in the spiral support in a threaded connection mode, and the other side of the spiral sleeve is used for supporting the bearing plate; the bolt sequentially penetrates through the bearing plate, the spiral support and the spiral sleeve and is connected with the nut arranged at the bottom of the upper support;
an operating rod is arranged on one side of the spiral sleeve close to the bearing plate; the operating rod is driven to enable the spiral sleeve to ascend or descend relative to the spiral support so as to support or separate the bearing plate.
6. The leveling force measuring device for the rocket test is characterized in that the end part of the spiral sleeve for supporting the force bearing plate is of a ball head structure, and a ball socket cover matched with the ball head structure is arranged between the ball head structure and the force bearing plate; the screw sleeve stably supports the bearing plate through the ball socket cover.
7. A leveling force measuring device for a rocket test according to claim 6 wherein the outer wall of the rod portion of the bolt is spaced from the inner wall of the screw sleeve to avoid the bolt from being stuck with the screw sleeve.
8. A leveling force measuring device for rocket tests according to claim 7, wherein a washer is provided between the bolt cap of the bolt and the bearing plate.
9. A leveling force measuring device for rocket tests according to claim 8 wherein said washers comprise a spherical upper washer and a spherical bowl-shaped lower washer arranged in cooperation with each other.
10. A rocket test leveling force measuring device according to claim 9 further comprising a cylindrical protective cover; the top of the protective cover is connected with the edge of the bearing plate, and the inner wall of the protective cover is respectively connected with the upper bracket; and frames for operators to climb are respectively arranged on the peripheries of the upper bracket and the lower bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881994.7A CN115355773B (en) | 2022-07-26 | 2022-07-26 | Leveling force measuring device for rocket test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210881994.7A CN115355773B (en) | 2022-07-26 | 2022-07-26 | Leveling force measuring device for rocket test |
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| CN115355773A true CN115355773A (en) | 2022-11-18 |
| CN115355773B CN115355773B (en) | 2023-12-05 |
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| CN110849542A (en) * | 2019-12-16 | 2020-02-28 | 吉林大学 | High-precision supporting device provided with dual anti-rotation mechanisms and capable of bearing heavy load |
| CN212766813U (en) * | 2020-07-13 | 2021-03-23 | 北京凌空天行科技有限责任公司 | Quality characteristic measuring device |
| CN114777976A (en) * | 2022-04-06 | 2022-07-22 | 蓝箭航天空间科技股份有限公司 | Leveling force measuring device and system of spacecraft |
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2022
- 2022-07-26 CN CN202210881994.7A patent/CN115355773B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5646376A (en) * | 1994-06-09 | 1997-07-08 | Intercomp Company | Aircraft weighing scale with improved base, platform and load cell mounting assembly |
| CN110849542A (en) * | 2019-12-16 | 2020-02-28 | 吉林大学 | High-precision supporting device provided with dual anti-rotation mechanisms and capable of bearing heavy load |
| CN212766813U (en) * | 2020-07-13 | 2021-03-23 | 北京凌空天行科技有限责任公司 | Quality characteristic measuring device |
| CN114777976A (en) * | 2022-04-06 | 2022-07-22 | 蓝箭航天空间科技股份有限公司 | Leveling force measuring device and system of spacecraft |
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