A leveling mechanism for carrying a turntable device and an attitude simulation turntable

Abstract

The present invention provides a leveling mechanism for carrying a turntable device and an attitude simulation turntable. The turntable device includes a fixed platform and a rotating platform. A first rotating shaft is provided on the fixed platform, and the rotating platform is rotatably connected to the first rotating shaft. The leveling mechanism includes: a locking assembly, including a first limiting member and a second limiting member. The first limiting member is provided on the rotating platform, and a first inclined surface is provided on the upper end surface of the first limiting member. The second limiting member is rotatably provided on the fixed platform, and a second inclined surface matching the first inclined surface is provided on the lower end surface of the second limiting member. And an adjusting assembly, which is used to drive the first limiting member to move back and forth between a first position and a second position. When the first limiting member is in the first position, the first inclined surface and the second inclined surface are in contact, and the second limiting member maintains the locking of the rotating platform. The leveling mechanism for carrying the turntable device of the present invention has high leveling accuracy and locks the position under the condition of withstanding impact and self-load.

Description

Technical Field

[0001] The present invention relates to the technical field of load-bearing turntable device equipment, and more particularly to a leveling mechanism for a load-bearing turntable device and an attitude simulation turntable. Background Art

[0002] For the currently widely used two-dimensional and three-dimensional turntable devices, when other high-precision instruments are mounted (or hung) thereon, during the operation of the device, its working plane often needs to be kept horizontal. Generally, it is required that the leveling work meets a certain accuracy and can maintain horizontal under the condition of bearing impact loads. The currently used leveling mechanism for the load-bearing turntable device has a simple structure and cannot keep its position from moving under the condition of bearing a large impact load. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a leveling mechanism for a load-bearing turntable device and an attitude simulation turntable, which have high leveling accuracy and lock the position under the condition of bearing impact and self-loads, aiming at the deficiencies of the prior art.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A leveling mechanism for a load-bearing turntable device, the load-bearing turntable device includes a fixed platform and a rotating platform, a horizontally extending first rotating shaft is provided on the fixed platform, and the rotating platform is rotatably connected to the first rotating shaft; characterized in that the leveling mechanism includes:

[0006] A locking assembly, including a first limiting member and a second limiting member, the first limiting member is provided on the rotating platform, and a first inclined surface is provided on the upper end surface of the first limiting member; the second limiting member is rotatably provided on the fixed platform, and a second inclined surface matching the first inclined surface is provided on the lower end surface of the second limiting member; and

[0007] An adjusting assembly connected to the first limiting member, the adjusting assembly is used to drive the first limiting member to move back and forth between a first position and a second position; when the first limiting member is in the first position, the first inclined surface and the second inclined surface are in contact, the rotating platform and the fixed platform are coplanar, and the second limiting member locks the rotating platform; when the first limiting member is in the second position, the second limiting member rotates above the fixed platform to release the position restriction on the rotating platform.

[0008] Optionally, the first inclined surface is inclined downward in a direction away from the adjusting assembly.

[0009] Optionally, the adjusting assembly includes a servo electric cylinder; one end of the first limiting member is provided with a clamping groove, a connecting block is accommodated in the clamping groove, the connecting block is installed on the extending shaft of the servo electric cylinder, and the extending shaft is perpendicular to the first rotating shaft.

[0010] Optionally, an adjusting handwheel for driving the extending shaft of the servo electric cylinder is installed on the servo electric cylinder to adjust the extending length of the extending shaft.

[0011] Optionally, a guide rail is installed on the rotating platform, and the guide rail extends along the extending direction of the extending shaft of the servo electric cylinder; the connecting block is installed on the guide rail, and the first limiting member is slidably installed on the guide rail through the connecting block.

[0012] Optionally, the locking assembly further includes a rotating member, the rotating member is rotatably installed on the fixed platform, and the second limiting member is installed on the rotating member.

[0013] Optionally, the locking assembly further includes a torque motor for driving the rotating member to rotate, the torque motor is installed on the fixed platform, a vertically arranged second rotating shaft is connected to the torque motor, and the rotating member is installed on the second rotating shaft.

[0014] Optionally, a notch is provided at the lower end of the rotating member, a convex block matching the notch is provided on the end face of the second limiting member close to the rotating member; the second limiting member is rotatably connected to the rotating member through a third rotating shaft extending along the length direction of the rotating member; a stop block for limiting the rotation angle of the second limiting member is provided on the fixed platform.

[0015] Optionally, there are at least two leveling mechanisms, which are symmetrically arranged with respect to a vertical reference plane passing through the first rotating shaft.

[0016] An attitude simulation turntable includes a support, a pitching platform frame rotatably installed at the upper end of the support around a first horizontal axis, and a rolling platform frame rotatably installed on the pitching platform frame around a second horizontal axis and used for bearing; it further includes any one of the above leveling mechanisms, which is arranged between the pitching platform frame and the rolling platform frame, and there are multiple leveling mechanisms, which are arranged in two groups, and the two groups of leveling mechanisms are symmetrically arranged with respect to a vertical reference plane passing through the second horizontal axis.

[0017] The beneficial effects of the present invention are:

[0018] For the leveling mechanism of the present invention, when the first limiting member is in the first position, the first inclined surface of the first limiting member abuts against the second inclined surface of the second limiting member, realizing reverse self-locking of the rotating platform. The adjusting assembly pushes the first limiting member to move towards the second limiting member, causing the first inclined surface to abut against the second inclined surface. The adjusting assembly bears the pressing force applied by the second limiting member, ensuring that the rotating platform remains in the locked position under a large impact load. At the same time, the first inclined surface and the second inclined surface of the locking assembly can self-correct, ensuring the cooperation of the first inclined surface and the second inclined surface in the presence of installation errors and wear of the first inclined surface and the second inclined surface. The structure is simple and the operation is convenient. Multiple symmetrically arranged leveling mechanisms can also prevent the rotating platform from rotating in two directions, keeping the fixed platform and the rotating platform relatively stationary and improving the position stability of the rotating platform after it stops rotating.

[0019] From the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clearly aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 is a schematic diagram of the leveling mechanism provided by the present invention in a locked state;

[0022] Figure 2 is a schematic diagram of the leveling mechanism provided by the present invention when it is not locked. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present invention provides a leveling mechanism for carrying a turntable device. The turntable device includes a fixed platform 10 and a rotating platform 2. A first rotating shaft 11 is provided on the fixed platform 10, and the rotating platform 2 is rotatably connected to the first rotating shaft 11. The leveling mechanism includes a locking component and an adjusting component. The locking component includes a first limiting member 30 and a second limiting member 40. The first limiting member 30 is provided on the rotating platform 2, that is, on the upper side of the upper end surface of the rotating platform 2. A first inclined surface 31 is provided on the upper end surface of the first limiting member 30. The second limiting member 40 is rotatably provided on the fixed platform 10, that is, on the upper side of the upper end surface of the fixed platform 10. A second inclined surface 41 that cooperates with the first inclined surface 31 is provided on the lower end surface of the second limiting member 40. The adjusting component is connected to the first limiting member 30 and is used to drive the first limiting member 30 to move back and forth between a first position and a second position. When the first limiting member 30 is in the first position, the first inclined surface 31 and the second inclined surface 41 are in contact, and the rotating platform 2 rotates to a preset position, such as the upper end surface of the rotating platform 2 being in a horizontal position, or for example, the rotating platform 2 is coplanar with the fixed platform 10, that is, the upper end surface of the rotating platform 2 is coplanar with the upper end surface of the fixed platform 10, and the second limiting member 40 maintains the locking of the rotating platform 2. When the first limiting member 30 is in the second position, the second limiting member 40 rotates above the fixed platform 10 to release the position restriction on the rotating platform 2. The line connecting the first position and the second position is perpendicular to the first rotating shaft 11.

[0024] When the rotating platform 2 of the leveling mechanism for carrying the turntable device of the present invention is unlocked, the adjusting component drives the first limiting member 30 to move from the first position to the second position, and the second limiting member 40 rotates above the fixed platform 10 to release the position restriction on the rotating platform 2. When the rotating platform 2 is locked, the second limiting member 40 rotates above the rotating platform 2, and a leveling clearance is reserved between the lower end surface of the second limiting member 40 and the rotating platform 2. The adjusting component drives the first limiting member 30 to move towards the second limiting member 40. By adjusting the contact area between the first inclined surface 31 and the second inclined surface 41, the upper end surface of the rotating platform 2 is adjusted to be coplanar with the upper end surface of the fixed platform 10, that is, the rotating platform 2 is leveled to the zero position, and the second limiting member 40 restricts the upward rotation of the rotating platform 2 to achieve the locking of the rotating platform 2, ensuring accurate zero-position locking under the condition of bearing large impacts or self-weight loads.

[0025] The leveling mechanism for carrying the turntable device of the present invention. When the first limiting member 30 is in the first position, the first inclined surface 31 of the first limiting member 30 abuts against the second inclined surface 41 of the second limiting member 40 to achieve reverse self-locking. The adjusting assembly pushes the first limiting member 30 to move towards the second limiting member 40, so that the first inclined surface 31 abuts against the second inclined surface 41. The adjusting assembly bears the pressing force applied by the second limiting member 40, ensuring that the rotating platform 2 remains in the locked position under the condition of bearing a large impact load. At the same time, the first inclined surface 31 and the second inclined surface 41 of the locking assembly can self-correct, and the cooperation between the first inclined surface 31 and the second inclined surface 41 can be ensured in the case of installation errors and wear of the first inclined surface 31 and the second inclined surface 41. The structure is simple and the operation is convenient.

[0026] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, the first inclined surface 31 is inclined downward in a direction away from the adjusting assembly. Specifically, the first limiting member 30 and the second limiting member 40 are wedge-shaped blocks, and the first inclined surface 31 and the second inclined surface 41 are wedge-shaped surfaces.

[0027] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, the adjusting assembly includes a servo electric cylinder 51. A slot is provided at one end of the first limiting member 30, and a connecting block 32 is accommodated in the slot. The connecting block 32 is installed on the extending shaft of the servo electric cylinder 51, and the extending shaft is perpendicular to the first rotating shaft. The position of the first limiting member 30 is electrically adjusted through the servo electric cylinder 51, and the operation is simple.

[0028] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, an adjusting handwheel 52 for driving the extending shaft of the servo electric cylinder 51 is installed on the servo electric cylinder 51. By rotating the adjusting handwheel 52 to drive the extending shaft of the servo electric cylinder 51, the position of the first limiting member 30 can be manually fine-tuned, and the rotating platform 2 can be adjusted to the zero position with high adjustment accuracy. By providing the servo electric cylinder 51 and the adjusting handwheel 52, adjustment methods such as electric, manual, rough adjustment or precise adjustment can be realized. Further, the adjusting handwheel 52 can be disassembled from the servo electric cylinder 51 when not in use to prevent the installation shaft and the adjusting handwheel 52 of the adjusting handwheel 52 from rotating when the servo electric cylinder 51 is electrically working, ensuring safety. When the adjusting handwheel 52 needs to be used, it is installed on the installation shaft of the adjusting handwheel 52, and the installation shaft is driven to rotate through key connection, and then the extending shaft of the servo electric cylinder 51 is driven to extend outwards and / or retract through the internal structure.

[0029] As Figure 1 and Figure 2As shown, in some embodiments of the present invention, a guide rail 6 is installed on the rotating platform 2, and the guide rail 6 extends along the extending direction of the extending shaft of the servo electric cylinder 51. The connecting block 32 is installed on the guide rail 6, and the first limiting member 30 is slidably installed on the guide rail 6 through the connecting block 32, so that the first limiting member 30 moves along the extending direction of the guide rail 6.

[0030] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, the locking assembly further includes a rotating member 70, the rotating member 70 is rotatably installed on the fixed platform 10, and the second limiting member 40 is installed on the rotating member 70. The rotating member 70 drives the second limiting member 40 to rotate and move.

[0031] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, the locking assembly further includes a torque motor 80 for driving the rotating member 70 to rotate. The torque motor 80 is installed on the fixed platform 10, a vertically arranged second rotating shaft is connected to the torque motor 80, and the rotating member 70 is installed on the second rotating shaft. The torque motor 80 drives the rotating member 70 on the second rotating shaft to rotate.

[0032] Further, a limit cap 81 is provided at the upper end of the second rotating shaft to prevent the second limiting member 40 from driving the rotating member 70 to move upward.

[0033] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, a notch extending in the horizontal direction perpendicular to the rotating member 70 is provided at the lower end of the rotating member 70, and a convex block 42 extending in the horizontal direction perpendicular to the rotating member 70 and matching the notch is provided on the end face of the second limiting member 40 close to the rotating member 70. The second limiting member 40 is rotatably connected to the rotating member 70 through a third rotating shaft extending along the length direction of the rotating member. The second limiting member 40 is rotatably connected to the rotating member 70, so that the second limiting member 40 can rotate relative to the rotating member 70 to realize the angle fine adjustment of the second limiting member 40. The cooperation connection between the notch and the convex block 42 forms a stepped limiting structure between the rotating member 70 and the second limiting member 40 to limit the rotation angle of the second limiting member 40 relative to the rotating member 70.

[0034] As Figure 1 and Figure 2 shown, in some embodiments of the present invention, a stop block 9 for limiting the rotation angle of the second limiting member 40 is provided on the fixed platform 10 to prevent the second inclined surface 41 and the first inclined surface 31 from being unable to cooperate after the second limiting member 40 rotates.

[0035] In some embodiments of the present invention, there are at least two leveling mechanisms, which are symmetrically arranged with respect to the vertical reference plane passing through the first rotating shaft 11.

[0036] An embodiment of the present invention further provides an attitude simulation turntable, which includes a support, a pitching platform rotatably mounted on the upper end of the support around a first horizontal axis, and a rolling platform rotatably mounted on the pitching platform around a second horizontal axis and used for bearing. In particular, the attitude simulation turntable further includes the leveling mechanism in any of the above embodiments, which is disposed between the pitching platform and the rolling platform, and a plurality of the leveling mechanisms are arranged in two groups, and the two groups of leveling mechanisms are symmetrically arranged with respect to a vertical reference plane passing through the second horizontal axis. Further, a plurality of the above leveling mechanisms may also be provided between the support and the pitching platform.

[0037] Up to this point, those skilled in the art should recognize that although a plurality of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. A leveling mechanism for carrying a turntable device, the turntable device including a fixed platform and a rotating platform, a first rotating shaft extending horizontally being provided on the fixed platform, and the rotating platform being rotatably connected to the first rotating shaft; characterized in that, The leveling mechanism includes: A locking assembly, including a first limiting member and a second limiting member. The first limiting member is disposed on the rotating platform, and a first inclined surface is provided on the upper end surface of the first limiting member; the second limiting member is rotatably disposed on the fixed platform, and a second inclined surface that cooperates with the first inclined surface is provided on the lower end surface of the second limiting member; and An adjusting assembly connected to the first limiting member, the adjusting assembly being configured to drive the first limiting member to move back and forth between a first position and a second position; when the first limiting member is in the first position, the first inclined surface and the second inclined surface are in contact, the rotating platform rotates to a preset position, and the second limiting member maintains the locking of the rotating platform; when the first limiting member is in the second position, the second limiting member rotates above the fixed platform to release the position restriction on the rotating platform; the first inclined surface is inclined downward in a direction away from the adjusting assembly; the adjusting assembly includes a servo electric cylinder; a clamping groove is formed at one end of the first limiting member, a connecting block is accommodated in the clamping groove, the connecting block is mounted on the extending shaft of the servo electric cylinder, and the extending shaft is perpendicular to the first rotating shaft.

2. The leveling mechanism according to claim 1, wherein An adjusting handwheel for driving the extending shaft of the servo electric cylinder is mounted on the servo electric cylinder to adjust the extending length of the extending shaft.

3. The leveling mechanism according to claim 1, wherein A guide rail is mounted on the rotating platform, and the guide rail extends along the extending direction of the extending shaft of the servo electric cylinder; the connecting block is mounted on the guide rail, and the first limiting member is slidably mounted on the guide rail through the connecting block.

4. The leveling mechanism according to claim 1, wherein The locking assembly further includes a rotating member, the rotating member is rotatably mounted on the fixed platform, and the second limiting member is mounted on the rotating member.

5. The leveling mechanism according to claim 4, characterized in that The locking assembly further includes a torque motor for driving the rotating member to rotate, the torque motor is mounted on the fixed platform, a vertically disposed second rotating shaft is connected to the torque motor, and the rotating member is mounted on the second rotating shaft.

6. The leveling mechanism according to claim 4, wherein A notch is provided at the lower end of the rotating member, and a convex block that matches the notch is provided on the end surface of the second limiting member close to the rotating member; the second limiting member is rotatably connected to the rotating member through a third rotating shaft extending along the length direction of the rotating member; a stop block for limiting the rotation angle of the second limiting member is provided on the fixed platform.

7. The leveling mechanism according to claim 1, characterized in that, There are at least two leveling mechanisms, which are symmetrically arranged with respect to a vertical reference plane passing through the first rotating shaft.

8. An attitude simulation turntable, comprising a support, a pitching platform rotatably mounted on the upper end of the support around a first horizontal axis, and a rolling platform rotatably mounted on the pitching platform around a second horizontal axis and used for loading; characterized in that, It further includes the leveling mechanism according to any one of claims 1 to 7, which is disposed between the pitching gantry and the rolling gantry, and there are multiple leveling mechanisms, which are arranged in two groups, and the two groups of leveling mechanisms are symmetrically arranged with respect to a vertical reference plane passing through the second horizontal axis.

Images