CN113911388A - Force transmission assembly for hole - Google Patents

Force transmission assembly for hole Download PDF

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Publication number
CN113911388A
CN113911388A CN202111077021.XA CN202111077021A CN113911388A CN 113911388 A CN113911388 A CN 113911388A CN 202111077021 A CN202111077021 A CN 202111077021A CN 113911388 A CN113911388 A CN 113911388A
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China
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type spare
arc groove
limiting plate
rotatory
hole
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CN202111077021.XA
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CN113911388B (en
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李素强
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AVIC First Aircraft Institute
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AVIC First Aircraft Institute
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64FGROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
    • B64F5/00Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
    • B64F5/60Testing or inspecting aircraft components or systems

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Transportation (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The application designs the experimental field of structural strength, including a hole with biography power subassembly, including power connecting device, structure, rotatory cooperation device is located between power connecting device and the structure, the structure includes the mating holes that links to each other with rotatory cooperation device, rotatory cooperation device includes U type spare and rotatory cushion, rotatory cushion is inserted and is located in the mating holes, the kink and the mating holes roll cooperation of U type spare, the kink of U type spare is located one side that power connecting device was kept away from to rotatory cushion, rotatory cushion is close to one side of U type spare and is seted up the first circular arc groove with U type spare roll complex, first circular arc groove sets up with the kink of U type spare is coaxial. The bidirectional large-angle force transmission device has the technical effect of realizing bidirectional large-angle force transmission of the force transmission assembly.

Description

Force transmission assembly for hole
Technical Field
The application belongs to the technical field of structural strength tests, and particularly relates to a force transmission assembly for holes.
Background
Referring to fig. 1, the structural member 1 utilizes round holes to connect a force transmission member and transmit load, most commonly, a single-lug round hole on the structural member 1 is inserted with a double-lug joint 25 by a pin 24, the double-lug joint 25 is connected with a loading end, the double-lug joint 25 can rotate around the pin 24 at a large angle relative to the single-lug round hole (in a plane perpendicular to the pin 24, herein designated as YZ plane) to adapt to deformation or change of load direction of the structural member 1 where the single-lug round hole is located, but in practical application, deformation or change of load direction of the structural member 1 is complicated, and the double-lug joint 25 is also required to rotate at a large angle in a plane parallel to the pin 24 (herein designated as XZ plane).
As shown in fig. 2-4, the double-lug joint 25 is subjected to oblique tension F, and in the process of stress, due to factors such as deformation of the structural member 1 and change of the external force F, the double-lug joint 25 and the single-lug round hole on the relative structural member 1 need to rotate by angles u and v in a YZ plane and an XZ plane; in an XZ plane, a pin shaft 24 and a single-lug round hole on a structural member 1 are always kept vertical and can not rotate, a double-lug joint 25 can not rotate, component forces F1 and F2 can be generated by oblique tension F at a steering stress point N of the double-lug joint 25, redundant moment M (M is F2 and L1) can be generated, a joint bearing can be pre-installed on the single-lug round hole of the structural member 1 for eliminating the moment M, the steering stress point N is moved downwards to the single-lug round hole, but the rotation angle of the joint bearing is limited, and large-angle rotation can not be met; in addition, the existing monaural circular holes on a plurality of structural members 1 are not provided with joint bearings, but need to rotate in the XZ plane at a large angle in actual later use, and a force transmission assembly which can be flexibly adapted to the monaural circular holes and can realize bidirectional large-angle rotation at the circular holes is needed.
Disclosure of Invention
The application aims at providing a hole is with passing power subassembly to it is difficult to realize two-way big angle pivoted problem to pass power subassembly among the prior art to solve.
The technical scheme of the application is as follows: the utility model provides a hole is with biography power subassembly includes power connecting device, structure, rotatory cooperation device, and rotatory cooperation device is located between power connecting device and the structure, the structure includes the mating holes that links to each other with rotatory cooperation device, rotatory cooperation device includes U type spare and rotatory cushion, rotatory cushion is inserted and is located in the mating holes, the kink and the mating holes roll cooperation of U type spare, the kink of U type spare is located one side that power connecting device was kept away from to rotatory cushion, rotatory cushion is close to one side of U type spare and has seted up the first circular arc groove with U type spare roll complex, first circular arc groove sets up with the kink of U type spare is coaxial.
Preferably, one side of the U-shaped part close to the power connection device is provided with a second arc groove in rolling fit with the matching hole.
Preferably, a plurality of groups of first concave groove channels are arranged in the first arc groove at intervals along the width direction of the first arc groove, a plurality of groups of second concave groove channels are arranged in the second arc groove at intervals along the width direction of the second arc groove, and lubricating oil or steel balls and rolling frames thereof can be arranged in the first concave groove channels and the second concave groove channels.
Preferably, the power connection device comprises a connecting rod and a support plate, wherein the connecting rod is arranged in the middle of the support plate, and the axis direction of the connecting rod passes through the center position of the matching hole.
Preferably, the mounting hole has been seted up to the both sides of backup pad, the both ends of U type spare set up with two mounting hole cooperations respectively, the tip of U type spare is seted up threadedly, U type spare corresponds the mounting hole upper and lower position and is equipped with respectively with first nut and second nut of U type spare screw-thread fit, be equipped with the cavity cone on first nut and the second nut, the upper and lower both ends of mounting hole all seted up can with cavity cone complex circular cone groove.
Preferably, the middle part of the supporting plate is provided with a connecting hole with a diameter larger than that of the connecting rod, the connecting rod is inserted into the connecting hole, one end of the connecting rod inserted into the connecting hole is provided with a hinged hemisphere, and the position of the connecting hole corresponding to the hinged hemisphere is provided with a spherical hinged surface.
Preferably, the rotary cushion block comprises a first limiting plate and a second limiting plate which are arranged at positions corresponding to two sides of the second arc groove, and a first limiting groove matched with the structural member is formed between the first limiting plate and the second limiting plate.
Preferably, a third groove channel is arranged on one side, close to the first limiting groove, of the first limiting plate and the second limiting plate, and lubricating oil or a steel ball and a rolling frame thereof can be arranged in the third groove channel.
Preferably, the positions of the rotary cushion block corresponding to the two sides of the first arc groove are provided with a third limiting plate and a fourth limiting plate, and a second limiting groove matched with the U-shaped piece is formed between the third limiting plate and the fourth limiting plate.
Preferably, both ends of the first arc groove extend out from both sides of the fitting hole.
The utility model provides a hole is with biography power subassembly sets up U type spare and rotatory cushion simultaneously, sets up on the rotatory cushion of XZ and rolls the first circular arc groove of complex with U type spare to realize power at the large-angle transmission of XZ direction, and the angle of power is towards the mating holes middle part all the time, passes power stably.
Preferably, through setting up the second circular arc groove to set up first concave channel way and second concave channel way, realize the steady roll of U-shaped spare and rotatory cushion, frictional resistance is less.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following briefly introduces the accompanying drawings. It is to be expressly understood that the drawings described below are only illustrative of some embodiments of the invention.
FIG. 1 is a schematic side view of a prior art shaft;
FIG. 2 is a diagram illustrating YZ-direction stress in the prior art;
FIG. 3 is a schematic diagram of XZ stress in the background art;
FIG. 4 is a schematic diagram illustrating the decomposition of the XZ stress in the background art;
FIG. 5 is a schematic view of the overall axial side structure of the present application;
FIG. 6 is a schematic view of a rotary spacer according to the present application;
FIG. 7 is a schematic diagram of the overall explosive structure of the present application;
FIG. 8 is a schematic view of the explosive structure of the power connection device and the U-shaped member of the present application;
FIG. 9 is a cross-sectional view of the power connection device and the U-shaped member of the present application;
FIG. 10 is a schematic view of the test piece of the present application in an unloaded state;
FIG. 11 is a schematic diagram of the present application illustrating forces in the XZ direction;
FIG. 12 is a YZ-direction force diagram of the present application;
FIG. 13 is a schematic view illustrating a multi-angle loading deformation state according to the present application.
1. A structural member; 2. a connecting plate; 3. a mating hole; 4. rotating the cushion block; 5. a first arc groove; 6. a second arc groove; 7. a U-shaped member; 8. a vertical portion; 9. a bending section; 10. a first concave channel; 11. a second concave channel; 12. a first nut; 13. a second nut; 14. a hollow cone; 15. connecting holes; 16. a hinged hemisphere; 17. a first limit plate; 18. a second limiting plate; 19. a third concave channel; 20. a third limiting plate; 21. a fourth limiting plate; 22. a connecting rod; 23. a support plate; 24. a pin shaft; 25. a double-lug joint.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application.
The utility model provides a hole is with biography power subassembly, as figure 5, includes power connecting device, structure 1, rotatory cooperation device, and rotatory cooperation device is located between power connecting device and the structure 1, structure 1 includes the mating holes 3 that links to each other with rotatory cooperation device, rotatory cooperation device includes U type spare 7 and rotatory cushion 4, rotatory cushion 4 is inserted and is located in mating holes 3, the kink 9 and the 3 roll cooperation of mating holes of U type spare 7, the kink 9 of U type spare 7 is located one side that power connecting device was kept away from to rotatory cushion 4, rotatory cushion 4 is close to one side of U type spare 7 and is seted up the first circular arc groove 5 with U type spare 7 roll complex, first circular arc groove 5 and the coaxial setting of kink 9 of U type spare 7.
When the structural member 1 is tested, the actuating system applies force to the structural member 1 through the power connecting device and the rotating matching device, when the force in the XZ direction is received, the bending part 9 of the U-shaped part 7 slides along the first arc groove 5 on the rotating cushion block 4 in a matching mode, so that the U-shaped part 7 slides along the XZ direction, in the process, the U-shaped part 7 can be tightly attached to the rotating cushion block 4, the force on the actuating system can be stably transmitted to the structural member 1, and the U-shaped part 7 and the first arc groove 5 are both in arc structures and always rotate around the same circle center, so that the direction of the force applied to the structural member 1 by the actuating system can always face the circle center position without deviation, the stable force can be applied to the structural member 1, and accurate measurement can be performed.
As a specific implementation mode, the force transmission assembly for the hole is used for carrying out a certain airplane box section type structural strength test.
During the test, the support end of the airplane box section is completely and fixedly supported by the fixed end plate, and loads P1 and P2 are applied to the other end of the airplane box section through two round holes on the single-lug double-round-hole structural member 1; p2> is greater than P1, and the aircraft box section will undergo greater kink and distortion upon application of load. In order to eliminate the influence of the loading inclination angles of the P1 and the P2, the loading actuators of the P1 and the P2 are arranged above the height of 15 meters, so that the loading directions of the P1 and the P2 are kept unchanged vertically upwards basically during the test. Because the aircraft box section is subjected to larger bending deformation, the bending angle is more than 10 degrees, the single-lug double-circular-hole structural member 1 is subjected to large-angle deflection in XZ and YZ planes, the loading directions P1 and P2 are basically kept vertically and upwards unchanged, and then the position of the force transmission member connected with the single-lug double-circular hole of the structural member 1 is kept unchanged, but the force transmission member is subjected to large-angle deflection in the XZ and YZ planes relative to the single-lug double-circular hole of the structural member 1.
The single-lug double-circular-hole structural member 1 is integrally fixed on an airplane box section, is synchronously processed and formed with the box section, and is transported to a test site after a circular hole is processed and formed into a unthreaded hole. The joint bearing can not be additionally arranged on site, and the maximum rotation angle, namely 7 degrees, corresponding to the joint bearing is not enough. Even if the joint bearing can be installed, the rotation angle is enough, and the conventional use of double lugs can cause the round hole structure on the box section and the pin shaft 24 to generate large bending moment in an XZ plane, so that the box section and the pin shaft are in danger of damage.
Including power connecting device, structure 1, the rotating fit device, power connecting device connects the power spare, can be for actuating the system, the rotating fit device is located between power connecting device and the structure 1, structure 1 is fixed in on the aircraft box section, be equipped with connecting plate 2 that the YZ direction set up on the structure 1, mating holes 3 have been seted up on connecting plate 2, mating holes 3 are equipped with two sets ofly and the interval is located on connecting plate 2, rotating fit device and power connecting device are two sets ofly and correspond the setting with two sets of mating holes 3.
Rotatory cooperation device includes U type spare 7 and rotatory cushion 4, U type spare 7 include with power connecting device matched with vertical portion 8, with rotatory cushion 4 complex kink 9, rotatory cushion 4 is close to one side of U type spare 7 and has seted up the first circular arc groove 5 with U type spare 7 roll complex, the cross section of first circular arc groove 5 is convex, the route is semi-circular, first circular arc groove 5 and the coaxial setting of kink 9, in order to realize the stable cooperation of XZ direction, and the angle that can the turn round is far more than 10 between first circular arc groove 5 and the kink 9, can effectively satisfy experimental requirement.
As shown in fig. 5 and 6, in order to realize stable engagement of the rotary cushion block 4 with the structural member 1 in the YZ direction, a second arc groove 6 in rolling engagement with the engagement hole 3 is preferably formed on one side of the rotary cushion block 4 close to the power connection device, and the cross section of the second arc groove 6 is a straight line and the path is semicircular. The second arc groove 6 is arranged in a protruding mode, when the actuating system applies force in the YZ direction, the rotary cushion block 4 slides relative to the matching hole 3 through the second arc groove 6, and force is stably transmitted.
Preferably, a plurality of groups of first concave groove channels 10 are arranged in the first arc groove 5 at intervals along the width direction, second concave groove channels 11 are arranged in the second arc groove 6 at intervals along the width direction, and lubricating oil or steel balls and rolling frames thereof can be arranged in the first concave groove channels 10 and the second concave groove channels 11. When the U-shaped element 7 is in rolling fit with the first concave channel 10 and the structural element 1 is in rolling fit with the second concave channel 11, lubricating oil or balls in the first concave channel 10 and the second concave channel 11 can ensure that friction is reduced and running is smoother when the rolling fit is carried out.
As shown in fig. 7 and 8, the power connection device preferably comprises a connecting rod 22 and a supporting plate 23. The link 22 is provided in the middle of the support plate 23 and its axial direction passes through the center position of the fitting hole 3, and the support plate 23 is normally disposed perpendicular to the axial direction of the link 22 and fitted with the vertical portion 8. The connecting rod 22 is used for connecting with the actuating system and the support plate 23 is used for transmitting power to the U-shaped element 7.
Preferably, the existing support plate 23 and the connecting rod 22 are matched through a nut, due to manufacturing errors, manual operation and other factors, the matching between the support plate 23 and the connecting rod 22 is not tight enough, and the transmission of the actuating force is slightly deviated, so that the measuring accuracy is affected.
For this reason, the mounting hole has been seted up to the both sides of backup pad 23, and vertical portion 8 corresponds the mounting hole and corresponds the setting, has seted up the screw thread on the vertical portion 8, and U type spare 7 corresponds the mounting hole upper and lower position and is equipped with respectively with 7 screw-thread fit's of U type spare first nut 12 and second nut 13, is equipped with cavity cone 14 on first nut 12 and the second nut 13, and the circular cone groove of outer big-end-up inside little is all seted up at the upper and lower both ends of mounting hole. The fixing of vertical portion 8 and support piece is realized to first nut 12 and second nut 13 of rotating, and at this in-process, cavity cone 14 can insert gradually in the circular cone groove and closely laminate with the internal face in circular cone groove, forms U type spare 7 and backup pad 23 integratively, realizes whole atress, and the transmission of power can not take place the skew simultaneously, and experimental measurement is more accurate.
As shown in fig. 5 and 9, preferably, when performing the strength test, the force applied by the actuating system is not limited to XZ and YZ directions, such as XY directions, i.e. the test piece may receive a bending torque force with a small deflection angle in the other directions, and the transmission of the force is difficult to achieve by the conventional force transmission assembly.
To this end, the middle portion of the supporting plate 23 is provided with a connecting hole 15 with a diameter slightly larger than that of the connecting rod 22, the connecting rod 22 is inserted into the connecting hole 15, one end of the connecting rod 22 inserted into the connecting hole 15 is provided with a hinged hemisphere 16, the hinged hemisphere 16 extends out to the other side of the supporting plate 23, and a spherical hinged surface is arranged at a position of the connecting hole 15 corresponding to the hinged hemisphere 16.
When the test piece is installed, the connecting rod 22 extends into the connecting hole 15 to the side, far away from the bending part 9, of the supporting plate 23, the hinged hemisphere 16 is attached to the spherical hinged surface to realize spherical hinge, when the test piece is subjected to bending torque force in other directions, the connecting rod 22 is driven to shift in a small range along the direction of the force, the axis direction of the connecting rod 22 is kept consistent with the direction of the force, and the hinged hemisphere 16 is stably attached to the spherical hinged surface, so that a large contact area is formed between the connecting rod 22 and the spherical hinged surface, and the stability of force transmission can be effectively guaranteed. Meanwhile, the hinged hemisphere 16 can automatically rotate 360 degrees in the XY plane, so that force at various angles can be effectively transmitted.
As shown in fig. 5 and 6, preferably, the positions of the rotary cushion block 4 corresponding to the two sides of the second arc groove 6 are provided with a first limiting plate 17 and a second limiting plate 18, a first limiting groove clamped and matched with the connecting plate 2 is formed between the first limiting plate 17 and the second limiting plate 18, and the first limiting plate 17 and the second limiting plate 18 are in sliding fit with the side walls of the two sides of the connecting plate 2. When the second arc groove 6 is in rolling fit with the fitting hole 3, the first and second limit plates 17 and 18 limit both sides of the second arc groove 6 to prevent deviation.
Preferably, a third concave channel 19 is arranged on one side of the first limit plate 17 and the second limit plate 18 close to the first limit groove, and lubricating oil or steel balls and rolling frames thereof can be arranged in the third concave channel 19. When the first limiting plate 17 is in sliding fit with the second limiting plate 18, the lubricating oil or the steel balls can reduce friction between the first limiting plate and the second limiting plate, so that the operation between the first limiting plate and the second limiting plate is smoother.
Preferably, the positions of the rotary cushion block 4 corresponding to the two sides of the first arc groove 5 are provided with a third limiting plate 20 and a fourth limiting plate 21, and a second limiting groove clamped and matched with the U-shaped part 7 is formed between the third limiting plate 20 and the fourth limiting plate 21. When the first arc groove 5 is in rolling fit with the bent portion 9, both sides of the third limiting plate 20 and the fourth limiting plate 21 are attached to both sides of the bent portion 9 to prevent deviation.
Preferably, the both ends of first circular arc groove 5 are stretched out from the both sides of mating holes 3, therefore the area of contact of kink 9 and first circular arc groove 5 increases by a wide margin than the hole round pin cooperation in prior art to effectively improve biography power and complex stability.
The specific working process is as follows:
referring to fig. 10 and 11, the actuating system applies forces in different directions to the test piece according to the measurement requirements, when the force in the YZ direction is applied, the actuating system drives the power connection device to work, the rotary cushion block 4 is in rolling fit with the matching hole 3 and synchronously rotates with the U-shaped piece 7, the required rotation angle is alpha, the direction of the rotary cushion block rotates to be the same as that of the U-shaped piece, and then the structural member 1 is driven to twist in the YZ direction; as shown in fig. 12, when a force in the XZ direction is applied, the actuating system drives the power connection device to operate, the rotary cushion blocks 4 are different, the U-shaped member 7 is in rolling fit with the rotary cushion blocks 4 and can rotate at a large angle, the rotation angle is β, the direction of the rotation is the same as that of the force, and then the structural member 1 is driven to twist in the YZ direction; as shown in fig. 13, when receiving two or more forces of XZ, YZ and XY simultaneously, the actuating system works through the power connection device, the hinged hemisphere 16 is hinged and matched with the spherical hinged surface, the matching link 22 rotates to have the same direction as the force, the rotary cushion block 4 can be in rolling fit with the matching hole 3, the U-shaped member 7 can be in rolling fit with the rotary cushion block 4, and both the two deflect with a smaller amplitude to drive the structural member 1 to twist in the direction of the force.
The invention has the following advantages:
1. the bidirectional large-angle rotation is realized simultaneously in two planes which are vertical and parallel to the pin shaft 24;
2. the rotation is stable, and the smooth rotation is realized by adopting a rolling fit mode and arranging a ball or lubricating oil;
3. the bearing capacity is high, the first arc groove 5 and the U-shaped part 7, and the second arc groove 6 and the matching hole 3 have larger contact areas, so that the bearing capacity is improved;
4. pass power angle various, can also realize 360 transmission of power of XY direction, realize the multi-angle measurement.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A hole is with passing power subassembly which characterized in that: including power connecting device, structure (1), rotatory cooperation device locates between power connecting device and structure (1), structure (1) includes mating holes (3) that link to each other with rotatory cooperation device, rotatory cooperation device includes U type spare (7) and rotatory cushion (4), rotatory cushion (4) are inserted and are located mating holes (3), kink (9) and mating holes (3) the roll cooperation of U type spare (7), kink (9) of U type spare (7) are located one side that power connecting device was kept away from in rotatory cushion (4), rotatory cushion (4) are close to one side of U type spare (7) and have been seted up with U type spare (7) roll complex first circular arc groove (5), first circular arc groove (5) and kink (9) coaxial setting of U type spare (7).
2. A force transfer assembly for a bore according to claim 1 wherein: and one side of the rotary cushion block (4) close to the power connecting device is provided with a second arc groove (6) which is in rolling fit with the matching hole (3).
3. A force transfer assembly for a bore according to claim 1 wherein: a plurality of groups of first concave groove channels (10) are arranged in the first arc groove (5) at intervals along the width direction of the first arc groove, a plurality of groups of second concave groove channels (11) are arranged in the second arc groove (6) at intervals along the width direction of the second arc groove, and lubricating oil or steel balls and rolling frames thereof can be arranged in the first concave groove channels (10) and the second concave groove channels (11).
4. A force transfer assembly for a bore according to claim 1 wherein: the power connection device comprises a connecting rod (22) and a supporting plate (23), wherein the connecting rod (22) is arranged in the middle of the supporting plate (23) and the axis direction of the connecting rod passes through the center of the matching hole (3).
5. A force transfer assembly for a bore according to claim 1 wherein: the mounting hole has been seted up to the both sides of backup pad (23), the both ends of U type spare (7) set up with two mounting hole cooperations respectively, the screw thread has been seted up to the tip of U type spare (7), U type spare (7) correspond the mounting hole upper and lower position and are equipped with respectively with first nut (12) and second nut (13) of U type spare (7) screw-thread fit, be equipped with cavity cone (14) on first nut (12) and second nut (13), the upper and lower both ends of mounting hole all seted up can with cavity cone (14) complex circular cone groove.
6. A force transfer assembly for a bore according to claim 1 wherein: connecting hole (15) that the diameter is greater than connecting rod (22) are seted up at the middle part of backup pad (23), connecting rod (22) insert to connecting hole (15) in, connecting rod (22) insert to the one end of connecting hole (15) and are equipped with articulated hemisphere (16), the position department that connecting hole (15) correspond articulated hemisphere (16) is equipped with spherical hinge surface.
7. A force transfer assembly for a bore according to claim 1 wherein: the rotary cushion block (4) is provided with a first limiting plate (17) and a second limiting plate (18) at positions corresponding to two sides of the second arc groove (6), and a first limiting groove matched with the structural member (1) is formed between the first limiting plate (17) and the second limiting plate (18).
8. A force transfer assembly for a bore according to claim 7 wherein: a third concave channel (19) is arranged on one side, close to the first limiting groove, of the first limiting plate (17) and the second limiting plate (18), and lubricating oil or a steel ball and a rolling frame thereof can be arranged in the third concave channel (19).
9. A force transfer assembly for a bore according to claim 1 wherein: and a third limiting plate (20) and a fourth limiting plate (21) are arranged at positions, corresponding to the two sides of the first arc groove (5), of the rotary cushion block (4), and a second limiting groove matched with the U-shaped part (7) is formed between the third limiting plate (20) and the fourth limiting plate (21).
10. A force transfer assembly for a bore according to claim 1 wherein: two ends of the first arc groove (5) extend out of two sides of the matching hole (3).
CN202111077021.XA 2021-09-15 2021-09-15 Force transmission assembly for hole Active CN113911388B (en)

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CN113911388B CN113911388B (en) 2024-05-17

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CN108481306A (en) * 2018-02-10 2018-09-04 西安电子科技大学 A kind of submissive parallel robot system of heavy load six degree of freedom
CN110352159A (en) * 2017-02-27 2019-10-18 塞佩姆股份公司 For coupling the device of two ships
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976468A (en) * 1987-06-09 1990-12-11 Amrus Corporation Connective joint with interlocking ring structures, adaptable for water conduction
CN1058458A (en) * 1990-07-22 1992-02-05 董根长 Universal ball and socket joint
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