Anti-impact device for single-shaft non-magnetic table

Abstract

The utility model relates to the field of structural design of rotating platforms, in particular to a single-shaft non-magnetic table anti-impact device which comprises a base, a connecting table, a shell, a sliding block, a first spring, an electric push rod and a rotating frame. Symmetrical sliding blocks are slidably connected to the two sides of the top of the connecting table in an embedded mode, first springs are symmetrically connected to the sliding joints of the two sides of the sliding blocks and the connecting table, an electric push rod is installed in the middle of the top of the connecting table, and rotating frames are rotatably connected to the tops of the sliding blocks on the two sides. First-stage damping is formed through the balls and the second springs between the base and the connecting table, second-stage transverse buffering is formed through the sliding blocks and the first springs, and a three-dimensional anti-impact system is formed. The motor drives the gear to perform meshing transmission to drive the rotating shaft to rotate stably, the rigid connection between the expansion disc and the workbench ensures the angle adjustment precision, and the non-magnetic environment requirement of the magnetic sensitive equipment is met.

Description

Technical Field

[0001] This utility model relates to the field of rotating platform structure design, and in particular to a single-axis non-magnetic table impact-resistant device. Background Technology

[0002] A non-magnetic stage is a precision rotary platform made of non-magnetic materials. Its core function is to provide a magnetic field-free testing environment for magnetically sensitive devices. A single-axis non-magnetic stage is a simplified version of the non-magnetic stage, retaining only a single rotation axis (usually a yaw axis). By simplifying the axis system, it reduces complexity and cost while maintaining the core non-magnetic characteristic.

[0003] In mining, oilfield, and vehicle-mounted applications, equipment frequently faces vibration and shock (such as drilling machinery vibration and vehicle bumps), which can cause deformation of the turntable structure or instability of the sensor mount. While traditional non-magnetic rotary platforms use non-magnetic materials to avoid magnetic field interference, most lack a graded vibration damping mechanism. When encountering drilling vibration or vehicle bumps, their rigid structure is prone to mechanical fatigue deformation due to high-frequency impacts, potentially even causing sensor mount instability and severely reducing the measurement accuracy of magnetically sensitive equipment. For example, conventional rotary platforms rely solely on simple supports for fixation, which cannot effectively disperse impact energy.

[0004] Therefore, a single-axis non-magnetic stage shock-resistant device was specially designed. Utility Model Content

[0005] To overcome the aforementioned drawbacks, this invention provides a single-axis non-magnetic stage impact-resistant device.

[0006] The technical solution of this utility model is: a single-axis non-magnetic table impact-resistant device, including a base, a connecting platform, a shell, a sliding block, a first spring, an electric push rod, a rotating frame, a protective shell, a motor, gears, a rotating shaft, and a worktable. The connecting platform is slidably mounted on the top of the base, and the shell is movably mounted on the top of the connecting platform. Symmetrical sliding blocks are embedded and slidably connected on both sides of the top of the connecting platform. First springs are symmetrically connected at the sliding connection points between the sliding blocks and the connecting platform on both sides. An electric push rod is installed in the middle of the top of the connecting platform. The tops of the sliding blocks on both sides are rotatably connected to the rotating frames. A protective shell is rotatably connected between the upper parts of the two rotating frames. The bottom of the protective shell is connected to the telescopic end of the electric push rod. A motor is installed on one side of the bottom of the protective shell. Two meshing gears are rotatably connected on both sides of the upper part of the protective shell. One gear is connected to the output shaft of the motor. A rotating shaft is rotatably and slidably connected to the other side of the bottom of the protective shell. The rotating shaft rotates through the top of the shell. An extension plate is provided on the top of the rotating shaft, and a worktable is connected to the top of the extension plate.

[0007] Optionally, the bottom of the base is provided with multiple anti-slip pads symmetrically along the circumference.

[0008] Optionally, it also includes anti-collision rings, with two anti-collision rings fitted on the outside of the housing.

[0009] Optionally, it also includes a connecting plate and a second spring. The connecting plate is provided at the bottom of the connecting platform, and multiple second springs are symmetrically connected around the outside of the connecting plate. The outward side of each second spring is connected to the inner wall of the base.

[0010] Optionally, it also includes ball bearings, with multiple ball bearings rotatably connected to the bottom of the connecting platform along the circumference, and all multiple ball bearings rotatably contacting the inner bottom of the base.

[0011] Optionally, it also includes buffer blocks and a third spring. Buffer blocks are symmetrically slidably connected around the inner periphery of the worktable, and a third spring is connected between the inward side of each buffer block and the inside of the worktable.

[0012] The present invention has the following advantages: 1. The first stage of shock absorption is formed by the ball bearings and the second spring between the base and the connecting table, and the second stage of lateral buffer is formed by the sliding block and the first spring, forming a three-dimensional anti-impact system; the motor drives the gear meshing transmission, which drives the rotating shaft to rotate smoothly; the rigid connection between the expansion disk and the worktable ensures the accuracy of angle adjustment, meets the non-magnetic environment requirements of magnetically sensitive equipment, and the electric push rod can adjust the height of the protective shell in real time to adapt to different working conditions, while keeping the internal transmission structure free from impact interference.

[0013] 2. The anti-slip pads at the bottom of the base prevent displacement, and the anti-collision rings on the outer shell absorb external collision energy, reducing the risk of structural damage.

[0014] 3. The circumferential distribution design of the connecting plate and the second spring further disperses the impact force and improves the energy absorption efficiency between the base and the connecting platform.

[0015] 4. The annular buffer layer formed by the buffer block and the third spring directly protects the magnetically sensitive equipment from instantaneous impacts, ensuring the reliability of test data. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the outer shell, anti-collision ring, and electric push rod of this utility model.

[0018] Figure 3 This is a cross-sectional view of the protective shell, motor, gears, and other components of this utility model.

[0019] Figure 4 This is a cross-sectional view of the base, connecting platform, and connecting plate of this utility model.

[0020] Figure 5 This is a cross-sectional view of the worktable, buffer block, and third spring of this utility model.

[0021] Figure 6 This is an exploded view of the outer shell, rotating shaft, and worktable of this utility model.

[0022] The markings in the attached diagram are: 1-base, 2-connecting platform, 3-outer shell, 4-anti-collision ring, 5-sliding block, 6-first spring, 61-electric push rod, 7-rotating frame, 8-protective shell, 9-motor, 10-gear, 11-rotating shaft, 12-worktable, 13-connecting plate, 14-second spring, 15-ball bearing, 16-buffer block, 17-third spring. Detailed Implementation

[0023] The embodiments of this utility model will be described below with reference to the accompanying drawings.

[0024] Example: Single-axis non-magnetic stage shock-resistant device, such as Figures 1-6 As shown, the device includes a base 1, a connecting platform 2, a housing 3, sliding blocks 5, a first spring 6, an electric push rod 61, a rotating frame 7, a protective shell 8, a motor 9, a gear 10, a rotating shaft 11, and a worktable 12. The base 1 serves as the main support structure. Multiple anti-slip pads are symmetrically arranged around the bottom of the base 1, and these pads are fixed by rubber compression to provide static friction and prevent displacement. The connecting platform 2 is slidably mounted on the top of the base 1, and the housing 3 is movably mounted on the top of the connecting platform 2. Symmetrical sliding blocks 5 are embedded and slidably connected to the top of the connecting platform 2. First springs 6 are symmetrically connected to the sliding connections of the sliding blocks 5 and the connecting platform 2. An electric push rod 61 is installed in the middle of the top of the connecting platform 2. Rotating frames 7 are rotatably connected to the tops of the sliding blocks 5 on both sides. A protective shell 8 is rotatably connected between the upper parts of the two rotating frames 7. The protective shell 8 and the rotating frame 7 are connected to the sliding block 5 and the protective shell 8 respectively by hinged pins to form a universal joint structure. The first spring 6 buffers the lateral impact. The rotating frame 7 allows the protective shell 8 to swing in multiple directions. The bottom of the protective shell 8 is connected to the telescopic end of the electric push rod 61. A motor 9 is installed on one side of the bottom inside the protective shell 8. Two meshing gears 10 are rotatably connected to the upper two sides inside the protective shell 8. One gear 10 is connected to the output shaft of the motor 9. A rotating shaft 11 is rotatably and slidably connected to the other side of the bottom inside the protective shell 8. The rotating shaft 11 rotates through the top of the outer shell 3. An extension plate is provided on the top of the rotating shaft 11. A worktable 12 is connected to the top of the extension plate. The worktable 12 is made of titanium alloy. The lower part of the rotating shaft 11 is rotatably connected to the protective shell 8 through a cross roller bearing. The upper extension plate is bolted to the worktable 12.

[0025] like Figure 1 and Figure 2 As shown, it also includes anti-collision rings 4. Two anti-collision rings 4 are fitted on the outside of the outer shell 3. The anti-collision rings 4 absorb the energy of lateral collisions.

[0026] like Figure 4As shown, it also includes a connecting plate 13 and a second spring 14. The connecting plate 13 is provided at the bottom of the connecting platform 2. Multiple second springs 14 are symmetrically connected around the outside of the connecting plate 13. The outward side of each second spring 14 is connected to the inner wall of the base 1. The second springs 14 absorb vertical impacts. The connecting plate 13 serves as a transition component between the connecting platform 2 and the second springs 14, and evenly transfers the impact load borne by the connecting platform 2 to the circumferentially distributed second springs 14. Its disc-shaped structure increases the force-bearing area and avoids stress concentration.

[0027] like Figure 4 As shown, it also includes ball bearings 15. Multiple ball bearings 15 are rotatably connected to the bottom of the connecting platform 2 along the circumference. The multiple ball bearings 15 are in rotatable contact with the inner bottom of the base 1, forming a rolling pair with the inner bottom surface of the base 1 to reduce the coefficient of friction.

[0028] like Figure 1 , Figure 5 and Figure 6 As shown, it also includes a buffer block 16 and a third spring 17. The buffer block 16 is symmetrically slidably connected to the inner periphery of the worktable 12. The buffer block 16 suppresses the high-frequency micro-vibration of the worktable 12. The inner side of each buffer block 16 is connected to the inside of the worktable 12 by a third spring 17. The third spring 17 provides elastic preload to keep the buffer block 16 in contact with the inner wall of the worktable 12, avoiding secondary vibration caused by gaps.

[0029] In use, the base 1 is placed firmly on the working surface, and the anti-slip pads on its bottom increase friction to prevent slippage. When an external impact is applied to the base 1, the connecting platform 2 is elastically connected to the base 1 through the ball bearings 15 at the bottom and multiple second springs 14. The ball bearings 15 allow the connecting platform 2 to move smoothly, and the second springs 14 compress to absorb impact energy, reducing the upward transmission of vibration. The sliding block 5 on the top of the connecting platform 2 slides embeddedly under lateral impact, and the first springs 6 on both sides compress or extend to absorb energy. At the same time, the anti-collision ring 4 on the outside of the outer shell 3 provides additional collision protection. The electric push rod 61 adjusts the height according to the operation requirements and supports the protective shell 8. The rotating frame 7 is hinged between the sliding block 5 and the protective shell 8, allowing the protective shell 8 to tilt slightly under impact without affecting the internal transmission structure. After the motor 9 starts, it drives the gear 10 connected to the output shaft to rotate. This gear 10 meshes with the gear 10 on the other side, driving the rotating shaft 11 to rotate. The rotating shaft 11 is connected to the worktable 12 through the expansion plate to achieve precise angle adjustment. During the rotation of the worktable 12, the internal buffer block 16 slides inward when impacted, and the third spring 17 compresses to absorb energy, ensuring the stable mounting of the magnetically sensitive equipment. The entire worktable 12 operates using non-magnetic materials to avoid magnetic field interference. The entire process utilizes multi-stage shock absorption through the first spring 6, the second spring 14, the third spring 17, the ball bearing 15, and the buffer block 16, combined with the meshing transmission of the gear 10, to ensure that the equipment remains structurally stable, rotates smoothly, and operates in a constant non-magnetic environment under vibration and impact.

[0030] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A single-axis, non-magnetic-table impact-resistant device, characterized in that, It includes a base (1), a connecting platform (2), a housing (3), a sliding block (5), a first spring (6), an electric push rod (61), a rotating frame (7), a protective shell (8), a motor (9), a gear (10), a rotating shaft (11), and a worktable (12). The connecting platform (2) is slidably mounted on the top of the base (1), and the housing (3) is movably mounted on the top of the connecting platform (2). Symmetrical sliding blocks (5) are embedded and slidably connected on both sides of the top of the connecting platform (2). The first spring (6) is symmetrically connected to the sliding connection between the sliding blocks (5) and the connecting platform (2) on both sides. An electric push rod (61) is installed in the middle of the top of the connecting platform (2), and the sliding blocks (5) on both sides... The top of each is rotatably connected to a rotating frame (7). The upper parts of the two rotating frames (7) are rotatably connected to a protective shell (8). The bottom of the protective shell (8) is connected to the telescopic end of the electric push rod (61). A motor (9) is installed on one side of the bottom inside the protective shell (8). Two meshing gears (10) are rotatably connected on both sides of the upper part inside the protective shell (8). One gear (10) is connected to the output shaft of the motor (9). A rotating shaft (11) is rotatably and slidably connected to the other side of the bottom inside the protective shell (8). The rotating shaft (11) rotates through the top of the outer shell (3). An extension plate is provided on the top of the rotating shaft (11). A worktable (12) is connected to the top of the extension plate.

2. The single-axis non-magnetic stage impact-resistant device according to claim 1, characterized in that, The bottom of the base (1) is symmetrically provided with multiple anti-slip pads.

3. The single-axis non-magnetic stage impact-resistant device according to claim 2, characterized in that, It also includes anti-collision rings (4), with two anti-collision rings (4) on the outside of the outer shell (3).

4. The single-axis non-magnetic stage impact-resistant device according to claim 3, characterized in that, It also includes a connecting plate (13) and a second spring (14). The bottom of the connecting platform (2) is provided with a connecting plate (13). Multiple second springs (14) are symmetrically connected around the outside of the connecting plate (13). The outward side of each second spring (14) is connected to the inner wall of the base (1).

5. The single-axis non-magnetic stage impact-resistant device according to claim 4, characterized in that, It also includes ball bearings (15), and multiple ball bearings (15) are rotatably connected to the bottom of the connecting platform (2) along the circumference. All multiple ball bearings (15) are in rotatable contact with the inner bottom of the base (1).

6. The single-axis non-magnetic stage impact-resistant device according to claim 5, characterized in that, It also includes a buffer block (16) and a third spring (17). The buffer block (16) is symmetrically connected to the inner periphery of the worktable (12). The inner side of each buffer block (16) is connected to the inside of the worktable (12) by a third spring (17).

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