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CN110823619A - Rolling frame for high-g-value three-degree-of-freedom centrifugal machine - Google Patents

Rolling frame for high-g-value three-degree-of-freedom centrifugal machine Download PDF

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Publication number
CN110823619A
CN110823619A CN201911236932.5A CN201911236932A CN110823619A CN 110823619 A CN110823619 A CN 110823619A CN 201911236932 A CN201911236932 A CN 201911236932A CN 110823619 A CN110823619 A CN 110823619A
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CN
China
Prior art keywords
shaft sleeve
frame
rib plates
sleeve rib
freedom
Prior art date
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Pending
Application number
CN201911236932.5A
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Chinese (zh)
Inventor
王黎光
杨永生
宋琼
黎启胜
罗龙
王鹏飞
郑殿臣
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General Engineering Research Institute China Academy of Engineering Physics
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General Engineering Research Institute China Academy of Engineering Physics
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Application filed by General Engineering Research Institute China Academy of Engineering Physics filed Critical General Engineering Research Institute China Academy of Engineering Physics
Priority to CN201911236932.5A priority Critical patent/CN110823619A/en
Publication of CN110823619A publication Critical patent/CN110823619A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention relates to the field of centrifuge structures, and particularly discloses a rolling frame for a high-g-value three-degree-of-freedom centrifuge, which comprises a frame, wherein the frame is an octagonal annular cavity surrounded by an outer skin outer ring, an inner skin inner ring and a cover plate; the frame is symmetrically provided with two rolling shaft mounting holes, small shaft sleeves are arranged in the rolling shaft mounting holes, two pitching shaft mounting holes are arranged on the side wall of the frame perpendicular to the connecting line of the two rolling shaft mounting holes, and large shaft sleeves are arranged in the pitching shaft mounting holes; and a plurality of threading pipes are arranged in the cavity between the outer skin and the inner skin. The invention has the advantages that the appearance structure, the section structure, the local structure and the wiring mode of the rolling frame are improved, so that the overload resistance, the rigidity and the bearing capacity of the rolling frame are improved, the eccentricity of the rolling frame is reduced, and the rolling frame can be used on a high-g-value three-degree-of-freedom centrifugal machine.

Description

Rolling frame for high-g-value three-degree-of-freedom centrifugal machine
Technical Field
The invention relates to the field of centrifuge structures, in particular to a rolling frame for a high-g-value three-degree-of-freedom centrifuge.
Background
The three-degree-of-freedom centrifugal machine comprises a rotating arm, a rolling frame, a rolling motor, a pitching frame, a pitching motor, a transmission unit, a main driving motor, an instrument cabin and the like. The three-degree-of-freedom centrifugal machine is important test equipment for realizing three-degree-of-freedom coordinated motion by utilizing the rotation motion of a rotating arm, the rolling motion of a rolling frame and the pitching motion of a pitching frame so as to simulate an acceleration and jerk environment, and can be used for product testing and basic research in the related fields of aviation, aerospace, navigation, weaponry, medical treatment and the like.
The rolling frame is connected with the rotating arm and the pitching frame, is a key force-bearing part of the three-degree-of-freedom centrifugal machine, needs to bear the maximum centrifugal load generated by the structure, the pitching motor, the pitching frame, a test piece and the like, and also needs to bear the torsion moment generated by the rolling motor and the pitching motor, and is severe in stress and complex in working condition.
According to investigation, the roll frame is already applied to a low-g-value three-degree-of-freedom/four-degree-of-freedom centrifuge, such as a three-axis turntable (a large-load hollow high-precision three-axis horizontal turntable, application number: 201711131877.4; a three-axis turntable frame shaft system device, application number: 201621308961. X), a three-axis manned centrifuge, a helicopter dynamic flight simulator (a three-degree-of-freedom roll frame system for a helicopter dynamic flight simulator, application number: 201811044735.9) and the like.
The defects of the traditional technology are as follows:
(1) the overload resistance is not strong, and the rigidity is not high;
(2) the carrying capacity is limited;
(3) the requirement on balance is not high.
The reasons for the above disadvantages are:
the traditional rolling frame is used in a gravity field or a low-g-value acceleration field, does not need to bear too large centrifugal load generated by the traditional rolling frame and the load, and has low requirements on overload resistance design, rigidity design and bearing capacity design.
In addition, the rolling motor drives the rolling frame to rotate, the rolling frame is eccentric, so that the rolling motor bears extra eccentric torque, when the rolling frame is used in a gravity field or a low-g-value acceleration field, the eccentric torque can be ignored relative to the driving torque, and when the rolling frame is used in a high-g-value acceleration field, the eccentric torque generated by the eccentricity becomes a main factor influencing the torque design of the motor.
Therefore, the traditional rolling frame cannot be applied to a high-g-value three-freedom-degree centrifuge.
Disclosure of Invention
The invention aims to overcome the defect that the prior art cannot meet the high-g-value use environment, and provides a rolling frame for a high-g-value three-freedom-degree centrifugal machine, which is arranged symmetrically in the front, back, left, right, up and down directions and can effectively avoid centrifugal load caused by eccentricity.
The purpose of the invention is realized by the following technical scheme: a rolling frame for a high-g-value three-degree-of-freedom centrifugal machine comprises a frame, wherein the frame is an octagonal annular cavity surrounded by an outer skin outer ring, an inner skin inner ring and a cover plate; the frame is symmetrically provided with two rolling shaft mounting holes, small shaft sleeves are arranged in the rolling shaft mounting holes, two pitching shaft mounting holes are arranged on the side wall of the frame perpendicular to the connecting line of the two rolling shaft mounting holes, and large shaft sleeves are arranged in the pitching shaft mounting holes;
and a plurality of threading pipes are arranged in the cavity between the outer skin and the inner skin.
Specifically, a plurality of fixing rib plates are vertically arranged between the outer skin and the inner skin, mounting holes are formed in the fixing rib plates, and the threading pipes penetrate through the mounting holes.
Specifically, the cavity between outer skin and the interior skin in the level be provided with the baffle divide into the cavity about even two-layer, many threading pipe symmetries set up upper and lower two-layer cavity in, be provided with the through wires hole on the outer skin, the one end intercommunication of through wires pipe the through wires hole, its other end and little axle sleeve intercommunication.
Specifically, the octagonal corners of the inner ring and the outer ring of the frame are round chamfers.
Specifically, the large shaft sleeve is of a stepped tubular structure, a plurality of first large shaft sleeve rib plates, second large shaft sleeve rib plates and third large shaft sleeve rib plates are radially arranged outside the large shaft sleeve, four first large shaft sleeve rib plates are arranged, and the first large shaft sleeve rib plates are symmetrically arranged in pairs in groups; two second large shaft sleeve rib plates are arranged between the first large shaft sleeve rib plates of each group, and a plurality of third large shaft sleeve rib plates are uniformly arranged between the second large shaft sleeve rib plates; the third large shaft sleeve rib plate is provided with a plurality of through holes, the first large shaft sleeve rib plate is provided with through holes, and the heights of the first large shaft sleeve rib plate, the second large shaft sleeve rib plate and the third large shaft sleeve rib plate are reduced in sequence.
Specifically, the small shaft sleeve is of a stepped cylindrical structure, four first small shaft sleeve rib plates are radially arranged outside the small shaft sleeve, and the small shaft sleeve rib plates are symmetrically arranged in pairs in groups; a plurality of second small shaft sleeve rib plates are uniformly arranged between the first small shaft sleeve rib plates of each group, and the first small shaft sleeve rib plates are provided with through holes.
Specifically, the first small shaft sleeve rib plate is an arc-shaped plate, and the height of the second small shaft sleeve rib plate is smaller than that of the first small shaft sleeve rib plate.
Specifically, a plurality of clamps are arranged on the outer skins on two sides of the pitching shaft mounting hole.
Specifically, a wire binding bracket is arranged in the small shaft sleeve.
Specifically, the inner side of the inner skin is provided with an inner skin reinforcing plate, and the bottom of the cover plate is provided with a cover plate reinforcing plate.
The invention has the following advantages:
1. the invention improves and designs the appearance structure, the box body section structure, the local structure and the wiring mode of the rolling frame, so as to improve the overload resistance, the rigidity and the bearing capacity of the rolling frame, reduce the eccentric amount of the rolling frame and ensure that the rolling frame can be used on a high-g-value three-freedom-degree centrifugal machine.
2. The rolling frame adopts a symmetrical structure, so that the intersection point of the rolling shaft and the pitching shaft is ensured to be superposed with the theoretical mass center of the rolling frame, and the eccentric torque born by the rolling motor is reduced;
3. the rolling frame adopts a cross section structure which is shaped like a Chinese character ri and has good comprehensive mechanical properties of tensile strength, compression strength, bending strength and torsion strength, so that the rolling frame can adapt to harsh and complex use conditions;
4. the corner areas of the inner ring and the outer ring of the rolling frame adopt large round angle structures, so that the stress condition of the key force bearing part is improved;
5. the rolling frame adopts a structural form that a reinforcing plate is locally attached to the inside, so that the local rigidity and strength of the rolling frame can be effectively improved, and the appearance integrity of the rolling frame can be ensured;
6. the large shaft sleeve and the small shaft sleeve of the rolling frame are of stepped cylindrical structures with ribs distributed along the radial direction, so that the torsional rigidity of a torque bearing part is improved;
7. eight-path threading pipes are symmetrically arranged inside the rolling frame, and the arrangement mode ensures that strong and weak current of the system are isolated from wiring and enables the appearance of the rolling frame to be attractive and tidy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a large bushing of the present invention;
FIG. 3 is a schematic structural view of the small bushing of the present invention;
FIG. 4 is a schematic structural view of a cross section of the frame of the present invention;
FIG. 5 is a schematic structural view of a cover plate stiffener according to the present invention;
FIG. 6 is a schematic structural view of an inner skin stiffener panel of the present invention;
in the figure: 1-cover plate, 2-inner cover plate, 3-outer cover plate, 4-large shaft sleeve, 41-first large shaft sleeve rib plate, 42-second large shaft sleeve rib plate, 43-third large shaft sleeve rib plate, 44-through hole, 45-through hole, 5-small shaft sleeve, 51-first small shaft sleeve rib plate, 52-second small shaft sleeve rib plate, 53-through hole, 6-pitch shaft mounting hole, 7-roll shaft mounting hole, 8-threading pipe, 9-fixed rib plate, 10-partition plate, 11-threading hole, 12-clamp, 13-binding wire bracket, 14-mounting hole, 16-inner cover plate and 17-cover plate reinforcing plate.
Detailed Description
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 6, a roll frame for a high-g-value three-degree-of-freedom centrifuge comprises a frame, wherein the frame is an octagonal annular cavity surrounded by an outer ring of an outer skin 3, an inner ring of an inner skin 2 and a cover plate 1; the rolling frame is formed by welding high-strength structural steel plates, two rolling shaft mounting holes 7 are symmetrically formed in the frame, small shaft sleeves 5 are arranged in the rolling shaft mounting holes 7, two pitching shaft mounting holes 6 are symmetrically formed in the side wall, perpendicular to the connecting line of the two rolling shaft mounting holes 7, of the frame, and large shaft sleeves 4 are arranged in the pitching shaft mounting holes 6; the rolling frame of the invention is used in a high-g-value acceleration field, does not need to bear too large centrifugal load generated by the self and the load, when the rolling frame is used in a gravity field or a low-g-value acceleration field, the eccentric torque is usually ignored relative to the driving torque, and when the rolling frame is used in the high-g-value acceleration field, the eccentric torque generated by the eccentricity becomes the main factor influencing the torque design of the motor, therefore, the rolling frame of the invention adopts an octagonal structure, and structurally, the rolling frame is symmetrically arranged front and back and left and right, namely, the rolling frame is symmetrically arranged along the two sides of the axial lines of two pitching shaft mounting holes 6 and symmetrically arranged along the two sides of the axial line of a rolling shaft mounting hole 7, the axial line of the pitching shaft mounting hole 6 is vertically arranged with the axial line of the rolling shaft mounting hole 7, and the rolling frame is symmetrically arranged up and down, and the rolling shaft is mounted in a small shaft sleeve 5 when in use, the pitching shaft is arranged in the large shaft sleeve 4, so that the coincidence of the intersection point of the rolling shaft and the pitching shaft and the theoretical mass center of the rolling frame is ensured, and the problem of eccentricity is solved.
A plurality of threading pipes 8 are arranged in a cavity between the outer skin 3 and the inner skin 2, a plurality of fixing rib plates 9 are vertically arranged between the outer skin 3 and the inner skin 2, mounting holes 14 are formed in the fixing rib plates 9, the threading pipes 8 penetrate through the mounting holes 14, a partition plate 10 is horizontally arranged in the cavity between the outer skin 3 and the inner skin 2 to divide the cavity and the fixing rib plates 9 into two layers which are uniform from top to bottom, the threading pipes 8 are symmetrically arranged in the upper layer cavity and the lower layer cavity, eight threading pipes 8 are arranged in the threading pipes 8, two threading pipes 8 are arranged between the adjacent small shaft sleeve 5 and the large shaft sleeve 4, the two threading pipes 8 are respectively arranged in the upper layer cavity and the lower layer cavity, the symmetry of the rolling frame is ensured, the arrangement mode not only ensures the strong and weak electric isolation wiring of the system, but also ensures the appearance of the rolling frame to be attractive and tidy; the outer skin 3 is provided with a threading hole 11, one end of a threading pipe 8 is communicated with the threading hole 11, the other end of the threading pipe is communicated with the small shaft sleeve 5, a partition plate 10 is horizontally arranged between the outer skin 3 and the inner skin 2 to divide the cavity into uniform upper and lower cavities, so that the section of the rolling frame forms a section in a shape like a Chinese character 'ri', meanwhile, a plurality of fixing rib plates 9 are vertically arranged in the cavity, two ends of each fixing rib plate 9 are respectively fixed on the outer skin 3 and the inner skin 2, the height of each fixing rib plate 9 is equal to the depth of the cavity, and by adopting the structure, the tensile, pressing, bending and twisting performances of the frame can be enhanced, the frame can work stably under the environment of a high-g-value acceleration field, and the; a plurality of through holes are arranged on the fixed rib plate 9.
Furthermore, the corners of the octagons on the inner ring and the outer ring of the frame are round chamfers, and the invention is an octagon structure which is symmetrical left and right and front and back, so the round chamfers of the rolling frame are mainly different in three places, and are preferably designed into R490, R490 and R350.
As shown in fig. 2, the large shaft sleeve 4 is a stepped cylindrical structure, which can improve the torsional rigidity of a torque-bearing part, and a plurality of first large shaft sleeve rib plates 41, second large shaft sleeve rib plates 42 and third large shaft sleeve rib plates 43 are radially arranged outside the large shaft sleeve 4; four first large shaft sleeve rib plates 41 are arranged, and are symmetrically arranged in groups in pairs, two second large shaft sleeve rib plates 42 are arranged between the first large shaft sleeve rib plates 41 in each group, and a plurality of third large shaft sleeve rib plates 43 are uniformly arranged between the second large shaft sleeve rib plates 42; the third large shaft sleeve rib plate 43 is provided with a plurality of through holes 45, the first large shaft sleeve rib plate 41 is provided with a through hole 44, and the heights of the first large shaft sleeve rib plate 41, the second large shaft sleeve rib plate 42 and the third large shaft sleeve rib plate 43 are sequentially reduced; the first large shaft sleeve rib plate 41, the second large shaft sleeve rib plate 42 and the third large shaft sleeve rib plate 43 are arranged on the large shaft sleeve 4, the anti-torsion rigidity of the large shaft sleeve 4 can be improved, meanwhile, the length of the large shaft sleeve rib plate is the same as the distance between the inner skin 2 and the outer skin 3, so that the reinforcing rib plate is additionally arranged on the part between the inner skin 2 and the outer skin 3, the local mechanical property of the frame positioned on the periphery of the pitching shaft mounting hole 6 is enhanced, and the main force bearing points are arranged on the periphery of the pitching shaft mounting hole 6, so that the working reliability of the frame is improved.
Further, the small shaft sleeve 5 is of a stepped cylindrical structure, the torsional rigidity of a torque bearing part can be improved by adopting the stepped cylindrical structure, four first small shaft sleeve rib plates 51 are arranged outside the small shaft sleeve 5 along the radial direction, and the small shaft sleeve rib plates are symmetrically arranged in pairs; a plurality of second small shaft sleeve rib plates 52 are uniformly arranged between the first small shaft sleeve rib plates 51 of each group, the first small shaft sleeve rib plates 51 are provided with through holes 53, the rib plates arranged on the small shaft sleeves 5 have the same functions as the rib plates arranged on the large shaft sleeve 4, and the description is not repeated here.
Further, the first small shaft sleeve rib plate 51 is an arc-shaped plate, and the height of the second small shaft sleeve rib plate 52 is smaller than that of the first small shaft sleeve rib plate 51.
Furthermore, a plurality of hoops 12 are arranged on the outer skin 3 on two sides of the pitching shaft mounting hole 6, a wire binding support 13 is arranged on the small shaft sleeve 5, a cable penetrates into the threading pipe 8 from the threading hole 11, the hoops 12 arranged on the outer skin 3 can fix the cable on the outer skin 3, and the other end of the cable is fixed on the wire binding support 13.
Further, an inner skin reinforcing plate 16 is arranged on the inner side of the inner skin 2, the inner skin reinforcing plate 16 is mainly arranged at the corner of the inner skin 2, and each corner is provided with an inner skin reinforcing plate 16, so that the local rigidity and strength at the corner are effectively enhanced; the bottom of apron 1 is provided with apron reinforcing plate 17, and apron reinforcing plate 17 also sets up in the corner of apron 1 equally, effectively strengthens the rigidity and the intensity at the corner of apron 1.
Lightening holes are formed in the fixed rib plates 9, the partition plates 10, the steps of the large shaft sleeve 4, the inner skin reinforcing plate 16 and the cover plate reinforcing plate, and are used for lightening the weight of the frame, and meanwhile, the first small shaft sleeve rib plate 51 is provided with a through hole 53, the first large shaft sleeve rib plate 41 is provided with a through hole 44, and the through hole formed in the steps of the large shaft sleeve 4 is also used for lightening.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art can make numerous possible variations and modifications to the described embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technology of the present invention are within the protection scope of the present invention, unless the content of the technical solution of the present invention is departed from.

Claims (10)

1. The utility model provides a roll frame that is used for three degree of freedom centrifuges of high g value which characterized in that: the device comprises a frame, wherein the frame is an octagonal annular cavity surrounded by an outer ring of an outer skin (3), an inner ring of an inner skin (2) and a cover plate (1); the frame is symmetrically provided with two rolling shaft mounting holes (7), small shaft sleeves (5) are arranged in the rolling shaft mounting holes (7), two pitching shaft mounting holes (6) are symmetrically arranged on the side wall of the frame perpendicular to the connecting line of the two rolling shaft mounting holes (7), and large shaft sleeves (4) are arranged in the pitching shaft mounting holes (6);
a plurality of threading pipes (8) are arranged in a cavity between the outer skin (3) and the inner skin (2).
2. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: a plurality of fixing rib plates (9) are vertically arranged between the outer skin (3) and the inner skin (2), mounting holes (14) are formed in the fixing rib plates (9), and the threading pipe (8) penetrates through the mounting holes (14).
3. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 2, wherein: outer skin (3) and interior skin (2) between the cavity level be provided with baffle (10) divide into cavity and fixed gusset (9) evenly about evenly two-layerly, many threading pipes (8) symmetry set up upper and lower two-layer cavity in, be provided with through wires hole (11) on outer skin (3), the one end intercommunication of threading pipe (8) through wires hole (11), its other end and little axle sleeve (5) intercommunication.
4. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: and the corners of the inner ring and the outer ring of the frame are octagonal and are round chamfers.
5. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: the large shaft sleeve (4) is of a stepped cylindrical structure, and a plurality of first large shaft sleeve rib plates (41), second large shaft sleeve rib plates (42) and third large shaft sleeve rib plates (43) are arranged outside the large shaft sleeve (4) along the radial direction; the number of the first large shaft sleeve rib plates (41) is four, the first large shaft sleeve rib plates are symmetrically arranged in pairs in groups, two second large shaft sleeve rib plates (42) are arranged between the first large shaft sleeve rib plates (41) of each group, and a plurality of third large shaft sleeve rib plates (43) are uniformly arranged between the second large shaft sleeve rib plates (42); the third large shaft sleeve rib plate (43) is provided with a plurality of through holes (45), the first large shaft sleeve rib plate (41) is provided with a through hole (44), and the heights of the first large shaft sleeve rib plate (41), the second large shaft sleeve rib plate (42) and the third large shaft sleeve rib plate (43) are reduced in sequence.
6. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: the small shaft sleeve (5) is of a stepped cylindrical structure, four first small shaft sleeve rib plates (51) are radially arranged outside the small shaft sleeve (5), and the small shaft sleeve rib plates are symmetrically arranged in pairs in groups; a plurality of second small shaft sleeve rib plates (52) are uniformly arranged between the first small shaft sleeve rib plates (51) of each group, and the first small shaft sleeve rib plates (51) are provided with through holes (53).
7. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 6, wherein: the first small shaft sleeve rib plate (51) is an arc-shaped plate, and the height of the second small shaft sleeve rib plate (52) is smaller than that of the first small shaft sleeve rib plate (51).
8. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: and a plurality of clamps (12) are arranged on the outer skin (3) at two sides of the pitching shaft mounting hole (6).
9. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: the small shaft sleeve (5) is provided with a wire binding bracket (13).
10. The roll frame for a high-g-value three-degree-of-freedom centrifuge according to claim 1, wherein: the inner side of the inner skin (2) is provided with an inner skin reinforcing plate (16), and the bottom of the cover plate (1) is provided with a cover plate reinforcing plate (17).
CN201911236932.5A 2019-12-05 2019-12-05 Rolling frame for high-g-value three-degree-of-freedom centrifugal machine Pending CN110823619A (en)

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CN201911236932.5A CN110823619A (en) 2019-12-05 2019-12-05 Rolling frame for high-g-value three-degree-of-freedom centrifugal machine

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CN201911236932.5A CN110823619A (en) 2019-12-05 2019-12-05 Rolling frame for high-g-value three-degree-of-freedom centrifugal machine

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111438004A (en) * 2020-05-15 2020-07-24 中国工程物理研究院总体工程研究所 Rolling frame for high-g-value three-degree-of-freedom centrifugal machine

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Publication number Priority date Publication date Assignee Title
CN111438004A (en) * 2020-05-15 2020-07-24 中国工程物理研究院总体工程研究所 Rolling frame for high-g-value three-degree-of-freedom centrifugal machine

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