Attitude suppression damping device

Abstract

The invention relates to a posture restraining and damping device. The posture restraining and damping device comprises a load mounting assembly and an angle restraining assembly arranged on the load mounting assembly. The load installation assembly comprises an installation part used for loading equipment and a base used for being connected with the equipment, and the upper end and the lower end of the angle restraining assembly are connected with the installation part and the base respectively, so that the installation part and the base keep the same angle all the time. The vibration isolation device has the beneficial effects that the angle suppression component is arranged in the load mounting component, so that the load mounting component loaded with equipment keeps the same angle all the time, the vibration isolation effect and the measurement precision of the load equipment are improved, and the application of the load equipment, such as optical fiber attitude and heading equipment, attitude measurement instruments and the like, in a vibration environment is promoted.

Description

Technical Field

[0001] The invention relates to the technical field of vibration reduction, in particular to a posture suppression vibration reduction device. Background Art

[0002] In many attitude measurements, such as fiber-optic attitude and navigation equipment and attitude measuring instruments, it is mainly used to measure the attitude and heading of the output device. During the working process, these attitude measurement devices will inevitably be subjected to various vibration shocks. When used in an external vibration environment, it is necessary to perform vibration isolation design on the fiber-optic attitude and navigation equipment and attitude measuring instruments.

[0003] The commonly used vibration isolation equipment is mainly composed of springs or elastic rubber and damping rods. During the use of vibration isolation equipment, the upper and lower tables are deformed due to the deformation of the springs, resulting in changes in the attitude, heading angle, and center position of the upper and lower tables, causing large errors in the output angles of the optical fiber heading equipment and attitude measurement instrument, which in turn affects the measurement. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a posture suppression and vibration reduction device.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: an attitude suppression and vibration reduction device, comprising a load mounting assembly and an angle suppression assembly arranged on the load mounting assembly; The load mounting assembly includes a mounting member for the load device and a base for connecting the device. The upper and lower ends of the angle suppression assembly are respectively connected to the mounting member and the base, so that the mounting member and the base always maintain the same angle. As a further technical solution, the load mounting member further comprises a damping member and a supporting elastic member, and the upper and lower ends of the damping member are respectively connected to the bottom of the mounting member and the bottom ball pair of the base; The supporting elastic member is sleeved on the upper part of the damping member, and one end of the supporting elastic member is fixed to the damping member, and the other end abuts against the bottom end of the mounting member to control the amplitude of the mounting member in the longitudinal direction.

[0006] As a further technical solution, the damping member includes a first ball joint, a first connecting rod, a support rod, a second connecting rod, and a second ball joint connected in sequence from top to bottom, and the first ball joint and the second ball joint are respectively connected to the concave ball groove ball pair provided at the lower part of the mounting member and the upper part of the base; The supporting elastic member is sleeved outside the first connecting rod, and one end of the supporting elastic member abuts against the bottom end of the mounting member, and the other end abuts against the upper end surface of the supporting rod; The outer diameter of the first connecting rod is smaller than the outer diameter of the supporting rod and is equal to the outer diameter of the second connecting rod.

[0007] As a further technical solution, the angle suppression components are provided in at least three groups and are evenly distributed along the circumferential direction of the mounting member.

[0008] As a further technical solution, the angle restraining assembly includes an upper posture restraining member, a bearing, a lower posture restraining member, and a reset support member. The upper end and the lower end of the upper posture restraining member are rotatably connected to the lower part of the mounting member and the upper end of the lower posture restraining member through a bearing; the lower end of the lower posture restraining member is rotatably connected to the reset support member; The reset support member is fixed to the upper end surface of the base.

[0009] As a further technical solution, a vertical connecting member is provided on the lower end surface of the mounting member, and the vertical connecting member is rotationally connected to the upper portion of the upper posture restraining member, so that the vertical connecting member, the upper posture restraining member and the lower posture restraining member form a three-link structure.

[0010] As a further technical solution, the reset support member includes a connecting shaft, two support seats, a rotating member fixedly connected to the lower posture suppression member, and two reset elastic members. The two ends of the connecting shaft are respectively fixed on the two symmetrically arranged support seats. The rotating member and the reset elastic member are both sleeved on the connecting shaft, and the rotating member is located between the two reset elastic members. The reset elastic member provides a pre-tightening force to the rotating member, so that the lower posture suppression member is always located at the center of the connecting shaft.

[0011] As a further technical solution, a through hole is provided at the lower portion of the vertical connecting member along its width direction, and the lower portion of the vertical connecting member is sleeved in the middle of the rotating shaft through the through hole.

[0012] As a further technical solution, both ends of the upper posture suppression member are provided with U-shaped openings, and the opening directions of the U-shaped openings at both ends are opposite, and the bearing is transversely arranged in the U-shaped opening, so that the vertical connecting member and the end of the lower posture suppression member connected to the upper posture suppression member are all sleeved in the middle of the corresponding bearing.

[0013] As a further technical solution, both ends of the upper posture restraining member are provided with symmetrical connecting holes along the width direction thereof, and are sleeved on the outer rings corresponding to the two ends of the bearing through the connecting holes.

[0014] The beneficial effects of the present invention are: 1. An angle suppression component is set in the load installation component so that the load installation component of the load equipment always maintains the same angle, so as to improve the vibration isolation effect and measurement accuracy of the load equipment, and promote the application of load equipment, such as optical fiber attitude equipment and attitude measurement instruments, in vibration environments; 2. The setting of damping parts, supporting elastic parts, ball joints and other structures in the load mounting parts enables the upper end of the mounting parts to load the equipment and reduce the vibration of the loaded equipment at the same time; at the same time, combined with the specific structural design of the angle suppression component, the mounting parts and the base are always kept at the same angle, so that the load equipment always maintains a stable measurement state, so as to improve the measurement accuracy of the load equipment. At the same time, the load equipment can also work in a vibration environment, so as to expand the use scenarios of the load equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of a posture suppression and vibration reduction device of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of a posture suppression vibration reduction device of the present invention after removing the supporting elastic member; Figure 3 It is a structural schematic diagram of the damping member of the present invention; Figure 4 It is a schematic diagram of the partial structure of the ball seat on the base after longitudinal section; Figure 5 It is a partial enlarged schematic diagram of the connection between the upper restraining posture member and the mounting member; Figure 6 It is a schematic diagram of an enlarged three-dimensional structure when a portion of the angle suppression component is connected to the base; Figure 7 is a schematic diagram of the three-dimensional structure of the bearing; Figure 8 It is a partial three-dimensional schematic diagram of the state when the mounting member is connected to the vertical connecting member; Fig. 9 It is a schematic diagram of the three-dimensional state when the upper posture restraining member is connected to the bearing.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Load mounting assembly 1, mounting member 11, damping member 111, first ball joint 1111, first connecting rod 1112, supporting rod 1113, second connecting rod 1114, second ball joint 1115, supporting elastic member 112, inner concave ball groove 113, ball seat 114, inner concave inclined groove 115, base 12, vertical connecting member 13, through hole 131; Angle suppression assembly 2, upper posture suppression member 21, U-shaped opening 211, connecting hole 212, outer ring 213, protruding block 214, bearing 22, shaft 221, lower posture suppression member 23, reset support member 24, connecting shaft 241, support seat 242, rotating member 243, through hole 2431, reset elastic member 244. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0018] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0019] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0020] Example 1 To expand the use of payload equipment, such as fiber-optic attitude equipment and attitude measurement instruments, such as measuring under vibration without affecting its measurement accuracy, see Figure 1 , Figure 2 , this embodiment provides a posture suppression and vibration reduction device, comprising: a load installation component 1 and an angle suppression component 2 arranged on the load installation component 1; The load mounting assembly 1 includes a mounting member 11 for a load device and a base 12 for connecting the device. The upper and lower ends of the angle suppression assembly 2 are respectively connected to the mounting member 11 and the base 12, so that the mounting member 11 and the base 12 always maintain the same angle, that is, the base 12 and the mounting member 11 always maintain a parallel arrangement (for example, see Figure 1 state), for example, when the mounting member 11 supports the device under the vibration of the device, since the mounting member 11 and the base 12 are always located at the same angle, it does not affect the detection of the device.

[0021] In the specific implementation process, see Figure 2 , Figure 3 The load mounting member 11 also includes a damping member 111 and a supporting elastic member 112. The upper and lower ends of the damping member 111 are respectively connected to the bottom of the mounting member 11 and the bottom ball joint of the base 12; the supporting elastic member 112 is sleeved on the upper part of the damping member 111, and one end of the supporting elastic member 112 is fixed to the damping member 111, and the other end is abutted against the bottom end of the mounting member 11 to control the amplitude of the mounting member 11 in the longitudinal direction. That is, when the load equipment is used in a vibration environment, due to the effect of the supporting elastic member 112, the amplitude of the load mounting assembly 1 is effectively reduced, and the posture and heading angle of the mounting member 11 and the base 12 are suppressed.

[0022] Further, see Figure 3 The damping member 111 includes a first ball joint 1111, a first connecting rod 1112, a supporting rod 1113, a second connecting rod 1114, and a second ball joint 1115 which are sequentially connected from top to bottom. The first ball joint 1111 and the second ball joint 1115 are respectively connected to the concave ball groove 113 provided at the lower part of the mounting member 11 and the upper part of the base 12; The supporting elastic member 112 is sleeved outside the first connecting rod 1112, and one end of the supporting elastic member 112 abuts against the bottom end of the mounting member 11, and the other end abuts against the upper end surface of the supporting rod 1113, so as to support the equipment on the upper part of the mounting member 11, thereby reducing the amplitude and improving the detection accuracy and stability of the equipment. To facilitate the installation of the supporting elastic member 112 and improve the supporting stability, the outer diameter of the first connecting rod 1112 is smaller than the outer diameter of the supporting rod 1113 and equal to the outer diameter of the second connecting rod 1114.

[0023] It can be explained that the first ball joint 1111, the first connecting rod 1112, the supporting rod 1113, the second connecting rod 1114, the second ball joint 1115, and the mounting member 11 share a central axis.

[0024] In the specific implementation process, see Figure 4A ball seat 114 with a concave ball groove 113 is installed on the bottom end surface of the mounting member 11 and the upper end surface of the base 12, and the ball seat 114 on the mounting member 11 and the ball seat 114 on the base 12 are symmetrically arranged, and the opening directions are arranged facing each other, and the concave ball groove 113 is opened along the height direction of the ball seat 114; further, the longitudinal section of the ball seat 114 is T-shaped, and the outer diameter of the surface where the horizontal side of the T is located is greater than the outer diameter of the surface where the vertical side is located, and the concave ball groove 113 extends from the vertical side of the T into the horizontal side, further improving the connection. Stability, so that the ball joint (such as the first ball joint 1111) will not disengage during the rotation process in the concave ball groove 113; in order to facilitate the ball joint (such as the first ball joint 1111) to rotate 360 ​​degrees along the horizontal direction of the concave ball groove 113, the upper part of the ball seat 114 (for example, the ball seat 114 connected to the base 12) is provided with a concave inclined groove 115 connected to the concave ball groove 113, and the concave inclined groove 115 is a structure that gradually decreases along its width, and the narrow side is connected to the concave ball groove 113, and the wide side is flush with the top of the ball seat 114. It should be noted that the ball seat 114 connected to the mounting member 11 has the same structure as the ball seat 114 set on the base 12, but their installation directions are opposite.

[0025] In the specific implementation process, the angle suppression component 2 is provided with at least three groups and is evenly distributed along the circumferential direction of the mounting member 11, that is, when the mounting member 11 and the base 12 are both circular structures, for example, the angle suppression component 2 can be provided with three groups and is evenly distributed along the circumferential direction of the circle to improve stability.

[0026] Further, see Figure 1 , Figure 2 , Figure 5 , Figure 6 , Fig. 9The angle suppression assembly 2 includes an upper posture suppression member 21, a bearing 22, a lower posture suppression member 23, and a reset support member 24. The upper end and the lower end of the upper posture suppression member 21 are rotatably connected to the lower part of the mounting member 11 and the upper end of the lower posture suppression member 23 through a bearing 22; the lower end of the lower posture suppression member 23 is rotatably connected to the reset support member 24; the reset support member 24 is fixed to the upper end surface of the base 12. That is, when the mounting member 11 is subjected to force and vibrates, the amplitude of the equipment in the longitudinal direction can be suppressed due to the action of the damping member 111 and the supporting elastic member 112. At the same time, the combined design of the upper posture suppression member 21, the lower posture suppression member 23 and the reset support member 24, on the one hand, enables the angle suppression component 2 to have a certain supporting force on the equipment in the longitudinal direction. On the other hand, due to the joint action of the three angle suppression components 2, the heading angle, center position, etc. of the equipment on the mounting member 11 will not change during operation, because the mounting member 11 and the base 12 always maintain the same angle, thereby improving the detection accuracy.

[0027] In the specific implementation process, the lower end surface of the mounting member 11 is provided with a vertical connecting member 13, and the vertical connecting member 13 is rotatably connected to the upper part of the upper posture restraining member 21, so that the vertical connecting member 13, the upper posture restraining member 21, and the lower posture restraining member 23 form a three-link structure. That is, when the mounting member 11 is affected by the equipment and is about to vibrate or deflect at an angle, the three-link structure is set to restrain the mounting member 11 from deflecting at an angle and reduce the amplitude; Further, see Figure 8 The lower part of the vertical connecting member 13 is provided with a through hole 131 along its width direction, and the lower part of the vertical connecting member 13 is sleeved in the middle of the bearing 22 through the through hole 131; further, see Figure 5-Figure 9, the bearing 22 is a bearing 22 with an axis, that is, the vertical connecting member 13 is sleeved on the axis 221 of the bearing 22 through the through hole 131 and is located in the middle of the axis 221; and both ends of the upper posture inhibitor 21 are provided with U-shaped openings 211, and the opening directions of the U-shaped openings 211 at both ends are opposite, and the bearing 22 is transversely arranged in the U-shaped opening 211, so that the vertical connecting member 13 and the end of the lower posture inhibitor 23 connected to the upper posture inhibitor 21 are sleeved In the middle of the corresponding bearing 22, that is, it is sleeved on the shaft 221 corresponding to the bearing 22. In more detail, both ends of the upper posture suppression member 21 are provided with symmetrical connecting holes 212 along its width direction, and are sleeved on the outer rings 213 corresponding to the two ends of the bearing 22 through the connecting holes 212, that is, the upper posture suppression member 21 rotates along the outer ring 213 of the bearing 22, and the vertical connecting member 13 and the lower posture suppression member 23 both rotate along the shaft 221 in the corresponding bearing 22.

[0028] To improve stability, see Figure 5 , Figure 6 , Fig. 9 , protruding blocks 214 are provided on the outer sides of both ends of the upper posture restraining member 21, and one of the connecting holes 212 corresponds to one of the protruding blocks 214 and is coaxial. That is, the protruding blocks 214 are provided on both outer sides of the width direction of the upper posture restraining member 21 and are coaxial with the bearing 22, so that the two ends of the bearing 22 are located between the two protruding blocks 214 on the corresponding sides, so as to avoid the vertical connection member 13, the upper posture restraining member 21, and the lower posture restraining member 23 from being separated during operation.

[0029] In the specific implementation process, see Figure 6 The reset support member 24 includes a connecting shaft 241, two supporting seats 242, a rotating member 243 fixedly connected to the lower posture inhibitor 23, and two reset elastic members 244. The two ends of the connecting shaft 241 are respectively fixed on the two symmetrically arranged supporting seats 242. The rotating member 243 and the reset elastic member 244 are both sleeved on the connecting shaft 241, and the rotating member 243 is located between the two reset elastic members 244. The reset elastic member 244 provides a pre-tightening force to the rotating member 243, so that the lower posture inhibitor 23 is always located at the center of the connecting shaft 241.

[0030] For example, see Figure 6The rotating member 243 is square, and a through hole 2431 is provided along the length direction of the rotating member 243, so that the connecting shaft 241 can pass through it, and the rotating member 243 and the connecting shaft 241 share a central axis. When the mounting member 11 vibrates, due to the pre-tightening force of the reset elastic members 244 on both sides of the rotating member 243, the rotating member 243 will not move along the length direction of the connecting shaft 241. At the same time, the upper attitude restraining member 21 is given a supporting force through the lower attitude restraining member 23, and then the amplitude of the mounting member 11 is controlled, so that the mounting member 11 and the base 12 are always at the same angle, so as to improve the processing accuracy of the upper equipment of the mounting member 11, control the deflection angle and center position of the equipment when it is working, for example, to avoid errors in the output angle of the optical fiber attitude equipment and attitude measuring instrument.

[0031] In this embodiment, the supporting elastic member 112 may be a supporting spring, and the restoring elastic member 244 may be a restoring spring.

[0032] The present invention is achieved in that: When the equipment installed on the mounting member 11 is in operation, the mounting member 11 and the base 12 vibrate. The vibration in the height direction between the mounting member 11 and the base 12 can be effectively reduced by the damping member 111 and the supporting elastic member 112. At the same time, the structural design of the angle suppression component 2 enables the mounting member 11 and the base 12 to always maintain the same angle to achieve angle suppression. The combined use of the two, on the one hand, achieves the effect of reducing vibration of the equipment, and on the other hand, controls the deflection angle of the mounting member 11 and the base 12 during vibration and the direction of movement along the connecting shaft 241, so that the device has good vibration isolation effect and high stability. At the same time, it provides a feasible solution for further promoting the application of loads such as fiber optic attitude equipment and attitude measuring instruments in vibration environments, that is, it has a relatively good suppression effect on attitude changes to meet the use requirements of attitude equipment.

[0033] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0034] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A posture suppression and vibration reduction device, characterized in that: It comprises a load installation component (1) and an angle suppression component (2) arranged on the load installation component (1); The load mounting assembly (1) comprises a mounting piece (11) for a load device, and a base (12); the upper and lower ends of the angle suppression assembly (2) are respectively connected to the mounting piece (11) and the base (12), so that the mounting piece (11) and the base (12) always maintain the same angle.

2. The posture suppression and vibration reduction device according to claim 1, characterized in that: The load mounting member (11) further comprises a damping member (111) and a supporting elastic member (112); the upper and lower ends of the damping member (111) are respectively connected to the bottom of the mounting member (11) and the bottom ball pair of the base (12); The supporting elastic member (112) is sleeved on the upper part of the damping member (111), and one end of the supporting elastic member (112) is fixed to the damping member (111) and the other end is abutted against the bottom end of the mounting member (11) to control the amplitude of the mounting member (11) in the longitudinal direction.

3. The posture suppression and vibration reduction device according to claim 2, characterized in that: The damping member (111) comprises a first ball joint (1111), a first connecting rod (1112), a supporting rod (1113), a second connecting rod (1114) and a second ball joint (1115) which are connected in sequence from top to bottom, the first ball joint (1111) and the second ball joint (1115) being respectively connected to a ball pair of an inner concave ball groove (113) provided at a lower portion of the mounting member (11) and an upper portion of the base (12); The supporting elastic member (112) is sleeved outside the first connecting rod (1112), and one end thereof abuts against the bottom end of the mounting member (11), and the other end abuts against the upper end surface of the supporting rod (1113); The outer diameter of the first connecting rod (1112) is smaller than the outer diameter of the supporting rod (1113) and is equal to the outer diameter of the second connecting rod (1114).

4. A posture suppression and vibration reduction device according to any one of claims 1 to 3, characterized in that: The angle suppression components (2) are provided in at least three groups and are evenly distributed along the circumferential direction of the mounting member (11).

5. The posture suppression and vibration reduction device according to claim 4, characterized in that: The angle suppression component (2) comprises an upper posture suppression member (21), a bearing (22), a lower posture suppression member (23), and a reset support member (24); the upper end and the lower end of the upper posture suppression member (21) are rotatably connected to the lower part of the mounting member (11) and the upper end of the lower posture suppression member (23) respectively through the bearing (22); the lower end of the lower posture suppression member (23) is rotatably connected to the reset support member (24); The resetting support member (24) is fixed to the upper end surface of the base (12).

6. The posture suppression and vibration reduction device according to claim 5, characterized in that: A vertical connecting member (13) is provided on the lower end surface of the mounting member (11), and the vertical connecting member (13) is rotatably connected to the upper portion of the upper posture restraining member (21), so that the vertical connecting member (13), the upper posture restraining member (21), and the lower posture restraining member (23) form a three-link structure.

7. The posture suppression and vibration reduction device according to claim 5, characterized in that: The reset support member (24) comprises a connecting shaft (241), two support seats (242), a rotating member (243) fixedly connected to the lower posture suppression member (23), and two reset elastic members (244); the two ends of the connecting shaft (241) are respectively fixed on two symmetrically arranged support seats (242); the rotating member (243) and the reset elastic member (244) are both sleeved on the connecting shaft (241); the rotating member (243) is located between the two reset elastic members (244); a pre-tightening force is provided to the rotating member (243) through the reset elastic member (244), so that the lower posture suppression member (23) is always located at the center of the connecting shaft (241).

8. The posture suppression and vibration reduction device according to claim 6, characterized in that: The lower portion of the vertical connecting member (13) is provided with a through hole (131) along its width direction, and the lower portion of the vertical connecting member (13) is sleeved in the middle of the bearing (22) through the through hole (131).

9. The posture suppression and vibration reduction device according to claim 6, characterized in that: Both ends of the upper posture suppressing member (21) are provided with U-shaped openings (211), and the opening directions of the U-shaped openings (211) at both ends are opposite. The bearing (22) is transversely arranged in the U-shaped opening (211), so that the vertical connecting member (13) and the end of the lower posture suppressing member (23) connected to the upper posture suppressing member (21) are all sleeved in the middle of the corresponding bearing (22).

10. The posture suppression and vibration reduction device according to claim 6, characterized in that: Both ends of the upper posture suppression member (21) are provided with symmetrical connection holes (212) along the width direction thereof, and are sleeved on the outer rings (213) corresponding to the two ends of the bearing (22) through the connection holes (212).

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