High-rotating-speed ultrasonic scanning lubricating structure

Abstract

The application discloses a high-rotation-speed ultrasonic scanning lubricating structure and relates to the technical field of ultrasonic scanning equipment, which solves the technical problems of traditional ultrasonic scanning, such as the need for additional coating of a coupling agent, unstable signal conduction at high rotation speed and poor convenience. The structure comprises an ultrasonic scanning sealing film, a scanning dismounting end cover, a probe shell, a rotating shell, a connecting line, an ultrasonic probe, a scanning inner gear ring, a scanning eccentric gear ring and a semi-solid lubricating grease. The ultrasonic scanning sealing film is a biological film, the ultrasonic probe is sealed in the probe shell and can rotate at a high speed, the conical slope of the scanning dismounting end cover is adapted to the conical head of the ultrasonic probe to form a reduced-diameter conical end, and the semi-solid lubricating grease fills the cavity in the probe shell where the ultrasonic probe moves at a high speed. The application does not need additional coating of a coupling agent, is suitable for high-rotation-speed operation, improves the ultrasonic signal conduction efficiency, enhances the scanning convenience and stability, and is suitable for various high-rotation-speed ultrasonic detection scenes.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic scanning equipment technology, and specifically to a high-speed ultrasonic scanning lubrication structure. Background Technology

[0002] Ultrasonic scanning technology is widely used in medical testing, industrial non-destructive testing, and other fields. Traditional ultrasonic testing equipment (such as B-mode ultrasound) requires coating the detection surface with a coupling agent (such as ultrasonic coupling oil) to eliminate air gaps between the probe and the detection surface, ensuring effective transmission of ultrasonic signals. However, in high-speed ultrasonic scanning scenarios, traditional coupling agents are easily lost due to centrifugal force splashing, leading to signal transmission interruption or attenuation, and frequent replenishment of coupling agent is required, severely affecting scanning efficiency. At the same time, the application of coupling agent increases operational steps and reduces the convenience of testing. In addition, the high frictional resistance between the high-speed rotating probe and the coupling agent further limits the increase of scanning speed.

[0003] There is currently no ultrasonic scanning structure that is suitable for high-speed operation, does not require additional coupling agent coating, and has stable signal transmission. Therefore, there is an urgent need for a high-speed ultrasonic scanning lubrication structure that can solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the technical shortcomings of traditional ultrasonic scanning equipment in high-speed scenarios, such as the need for additional coupling agent coating, easy loss of coupling agent, unstable signal transmission, poor operation convenience, and limited speed, this invention provides a high-speed ultrasonic scanning lubrication structure that achieves the technical effects of eliminating the need for additional coupling agent replenishment at high speeds, efficient and stable signal transmission, and convenient operation.

[0005] To solve the above problems, the technical solution provided by the present invention is as follows:

[0006] A high-speed ultrasonic scanning lubrication structure includes an ultrasonic scanning sealing membrane, a scanning replacement end cap, a probe housing, a rotating housing, a connecting wire, an ultrasonic probe, a scanning internal gear ring, a scanning eccentric gear ring, and semi-solid grease. The ultrasonic scanning sealing membrane is a biofilm. The ultrasonic probe is disposed inside the probe housing, which is a sealed structure, and the ultrasonic probe can rotate at high speed relative to the probe housing. The scanning replacement end cap has a scanning hole and a conical ramp on its inner side, which is adapted to the conical head of the ultrasonic probe and forms a tapered end with a reduced diameter. The semi-solid grease fills the cavity inside the probe housing where the ultrasonic probe moves at high speed. The scanning internal gear ring is fixedly connected to the ultrasonic probe, and the scanning eccentric gear ring meshes with the scanning internal gear ring for transmission. The rotating housing rotates with the probe housing, and the connecting wire passes through the probe housing and the rotating housing.

[0007] The ultrasonic scanning sealing membrane made of biofilm material achieves the dual functions of sealing and ultrasonic penetration. The sealed probe shell ensures the stability of the semi-solid grease filling. The conical ramp adapts to the conical head of the ultrasonic probe to reduce fluid resistance at high speeds. The semi-solid grease has both lubrication and ultrasonic signal transmission functions. The meshing transmission between the scanning internal gear ring and the scanning eccentric gear ring enables the ultrasonic probe to rotate at high speeds and stably. The overall structure does not require additional coupling agent coating, is suitable for high-speed operation, and improves the efficiency and convenience of ultrasonic scanning.

[0008] Optionally, the ultrasonic scanning sealing membrane is a collagen biomembrane and is fixedly attached to the outside of the scanning hole by an adhesive method.

[0009] Further specifying the material and fixing method of the ultrasonic scanning sealing membrane, the collagen biomembrane has good biocompatibility, sealing and ultrasonic penetration, and the bonding and fixing method ensures the connection stability between the sealing membrane and the scanning hole, preventing it from falling off or leaking at high speed.

[0010] Optionally, the semi-solid grease is a polyurea-based semi-solid grease with a dropping point ≥200℃ and a cone penetration (25℃, 1 / 4) of 265-295 (0.1mm).

[0011] The specific types and performance parameters of semi-solid greases are defined. Polyurea-based semi-solid greases have the characteristics of high temperature resistance, shear resistance, and long-lasting lubrication performance, which are suitable for lubrication needs at high speeds. Specific dropping point and cone penetration parameters ensure that they remain semi-solid at high speeds and within a certain temperature range, avoiding loss or liquefaction and ensuring the stability of ultrasonic signal transmission.

[0012] Optionally, the scanning and replacement end cap can be detachably connected to the probe housing via a threaded connection.

[0013] The connection method between the end cap and the probe housing is limited for scanning and replacement. The threaded connection is convenient for disassembly and reliable for connection, which facilitates subsequent maintenance, replacement or replenishment of the ultrasonic probe, sealing membrane or lubricant.

[0014] Optionally, the scanning internal gear ring is interference-fitted with the ultrasonic probe, and the scanning eccentric gear ring is driven to rotate by an external drive motor.

[0015] The connection method between the scanning internal gear ring and the ultrasonic probe, as well as the driving method of the scanning eccentric gear ring, are limited. The interference fit ensures the firm connection between the gear ring and the probe, and the external drive motor provides stable power for the gear ring transmission, enabling precise high-speed rotation of the ultrasonic probe.

[0016] Optionally, the probe housing and the rotating housing are connected by a bearing, and a sealing gasket is provided at the connection point.

[0017] The connection method and sealing structure between the probe housing and the rotating housing are limited. The bearing connection reduces the frictional resistance between the two relative to each other during rotation. The sealing gasket prevents semi-solid grease from leaking from the connection point and blocks external impurities from entering, ensuring the stability of the structure and its service life.

[0018] Optionally, the connecting wire is a shielded cable, which passes through the reserved wire hole in the probe housing and the rotating housing, and the wire hole is provided with a sealing structure.

[0019] The type and installation method of the connecting cable are specified. Shielded cables reduce external electromagnetic interference and ensure the quality of ultrasonic signal transmission. The sealing structure at the cable hole prevents grease leakage and protects the connecting cable from wear.

[0020] Optionally, the taper of the conical ramp is 30°-60°, consistent with the taper of the conical head of the ultrasonic probe.

[0021] The taper range of the conical ramp is limited to 30°-60° to match the conical head of the ultrasonic probe. This ensures the diameter reduction effect to reduce fluid resistance while avoiding excessive taper that could cause the ultrasonic signal transmission path to deviate or be lost.

[0022] Optionally, the rotational speed of the ultrasonic probe is in the range of 3000 r / min to 10000 r / min.

[0023] The ultrasonic probe's rotation speed range is limited to 3000r / min-10000r / min, which is suitable for high-efficiency ultrasonic scanning requirements. At the same time, this range matches the lubrication performance of the semi-solid grease and the sealing performance of the structure, ensuring operational stability.

[0024] Optionally, the semi-solid grease is filled to 95%-100% of the inner volume of the probe housing.

[0025] The filling rate of the semi-solid grease is limited to 95%-100% to ensure that there are no air gaps in the inner cavity of the probe housing, thus ensuring the continuity and stability of ultrasonic signal transmission. At the same time, it avoids excessive pressure due to overfilling or poor lubrication and transmission effects due to underfilling.

[0026] Compared with the prior art, the technical solution provided by this invention has the following advantages:

[0027] This invention uses semi-solid grease to fill the inner cavity of the probe housing, which has both lubrication and ultrasonic signal transmission functions. It eliminates the need for additional coupling agent coating, avoids the problem of traditional coupling agent splashing and losing at high speeds, and improves the ease of operation.

[0028] The ultrasonic scanning sealing membrane is made of biofilm material, which not only ensures sealing performance and prevents grease leakage, but also has good ultrasonic penetration and does not affect signal transmission.

[0029] The tapered ramp of the scanning and replacement end cap is adapted to the tapered head of the ultrasonic probe to form a reduced-diameter tapered end, which reduces the fluid resistance when the ultrasonic probe rotates at high speed, increases the upper limit of the rotation speed, and adapts to the high-speed scanning requirements.

[0030] By meshing and transmitting the internal gear ring and the eccentric gear ring, the ultrasonic probe can achieve stable high-speed rotation. Combined with the lubrication of semi-solid grease, rotational friction loss is reduced and the service life of the equipment is extended.

[0031] The probe housing adopts a sealed structure to ensure the stability of the semi-solid grease filling, prevent external impurities from entering, and improve the stability of ultrasonic signal transmission and detection accuracy. Attached Figure Description

[0032] Figure 1 A schematic diagram of a high-speed ultrasonic scanning lubrication structure proposed in an embodiment of the present invention;

[0033] Figure 2 This is one embodiment of a high-speed ultrasonic scanning lubrication structure proposed in the present invention;

[0034] Figure 3 This is a second embodiment of a high-speed ultrasonic scanning lubrication structure proposed in the present invention;

[0035] 1. Ultrasonic scanning of the sealing membrane; 2. Scanning and replacing the end cap; 201. Scanning hole; 202. Conical ramp; 3. Probe housing; 4. Rotating housing; 5. Connecting wire; 6. Ultrasonic probe; 7. Scanning the internal gear ring; 8. Scanning the eccentric gear ring; 9. Semi-solid grease. Detailed Implementation

[0036] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0037] Example 1

[0038] Combined with appendix Figure 1-3 A high-speed ultrasonic scanning lubrication structure includes an ultrasonic scanning sealing membrane 1, a scanning replacement end cap 2, a probe housing 3, a rotating housing 4, a connecting wire 5, an ultrasonic probe 6, a scanning internal gear ring 7, a scanning eccentric gear ring 8, and a semi-solid grease 9. The ultrasonic scanning sealing membrane 1 is a biofilm. The ultrasonic probe 6 is disposed inside the probe housing 3, which is a sealed structure. The ultrasonic probe 6 can rotate at high speed relative to the probe housing 3. Figure 3The scanning and replacement end cover 2 has a scanning hole 201 and a conical ramp 202 on the inner side. The conical ramp 202 is adapted to the conical head of the ultrasonic probe 6 and forms a tapered end with a reduced diameter. The semi-solid grease 9 fills the cavity of the ultrasonic probe 6 in the probe housing 3 where it moves at high speed. The scanning inner gear ring 7 is fixedly connected to the ultrasonic probe 6, and the scanning eccentric gear ring 8 meshes with the scanning inner gear ring 7 for transmission. The rotating housing 4 rotates with the probe housing 3, and the connecting wire 5 passes through the probe housing 3 and the rotating housing 4.

[0039] The ultrasonic probe 6 is installed inside the sealed probe housing 3. An external drive motor drives the scanning eccentric gear ring 8 to rotate, which in turn drives the scanning internal gear ring 7 and the ultrasonic probe 6 to rotate at high speed through gear meshing. The semi-solid grease 9 fills the inner cavity of the probe housing 3 and forms a lubricating film when the ultrasonic probe 6 rotates, reducing rotational friction loss. At the same time, it serves as a medium for transmitting ultrasonic signals, transmitting the signal emitted by the ultrasonic probe 6 to the object being tested through the ultrasonic scanning sealing membrane 1. The reflected signal is transmitted back to the ultrasonic probe 6 through the original path. The conical ramp 202 fits against the conical head of the ultrasonic probe 6 to form a reduced diameter structure, reducing the eddy current resistance of the grease at high speeds and ensuring smooth rotation. The ultrasonic scanning sealing membrane 1 seals the scanning hole 201 to prevent grease leakage, and the biofilm material does not hinder the penetration of ultrasonic signals, enabling high-speed ultrasonic scanning without additional coupling agent.

[0040] The ultrasonic scanning sealing membrane 1 is a collagen biomembrane, which is fixed to the outside of the scanning hole 201 by adhesive bonding. The dense molecular structure of the collagen biomembrane can effectively prevent the semi-solid lubricating grease 9 from leaking from the scanning hole 201. At the same time, its acoustic impedance is similar to that of human tissue or common detection materials, resulting in low ultrasonic signal penetration loss. The adhesive bonding method ensures that the sealing membrane is tightly attached to the edge of the scanning hole 201, forming a reliable seal. Even under the centrifugal force generated by the high-speed rotation of the ultrasonic probe 6, the sealing performance can still be maintained, ensuring the stability of the structure operation.

[0041] The semi-solid grease 9 is a polyurea-based semi-solid grease with a dropping point ≥200℃ and a cone penetration (25℃, 1 / 4) of 265-295 (0.1mm). The polyurea-based grease's dropping point ≥200℃ can withstand the frictional heat generated by the high-speed rotation of the ultrasonic probe 6, preventing grease liquefaction and loss due to temperature increases. The cone penetration of 265-295 (0.1mm) gives it suitable fluidity and adhesion, enabling it to form a uniform lubricating film on the surface of the ultrasonic probe 6, reducing rotational friction, and filling the gap between the probe and the housing, serving as a continuous ultrasonic signal transmission medium and ensuring signal transmission efficiency.

[0042] The scanning and replacement end cap 2 is detachably connected to the probe housing 3 via a threaded connection. The threaded connection utilizes the self-locking property of the screw pair to tightly fix the scanning and replacement end cap 2 to the probe housing 3, maintaining a stable connection under the vibration and centrifugal force generated by the high-speed rotation of the ultrasonic probe 6, ensuring structural sealing. When maintenance is required, the end cap can be easily removed by simply rotating it, making operation simple and requiring no special tools, thus improving equipment maintenance efficiency.

[0043] The scanning internal gear ring 7 is interference-fitted with the ultrasonic probe 6, and the scanning eccentric gear ring 8 is driven to rotate by an external drive motor. The interference fit between the scanning internal gear ring 7 and the ultrasonic probe 6 ensures that there is no relative rotation between them, thus ensuring that the rotational torque of the scanning eccentric gear ring 8 is fully transmitted to the ultrasonic probe 6. The external drive motor drives the scanning eccentric gear ring 8 to rotate through its output shaft. Utilizing the transmission characteristics of gear meshing, the rotational motion of the motor is converted into the high-speed rotation of the ultrasonic probe 6. Gear transmission has the characteristics of precise transmission ratio and high efficiency, ensuring that the rotational speed of the ultrasonic probe 6 is stable and controllable.

[0044] The probe housing 3 and the rotating housing 4 are connected by a bearing, and a sealing gasket is provided at the connection point. The rolling friction of the bearing replaces the sliding friction, which greatly reduces the rotational resistance between the probe housing 3 and the rotating housing 4, reduces energy loss, and is suitable for the high-speed operation requirements of the ultrasonic probe 6. The sealing gasket is set on both sides of the bearing or at the connection gap. Its elastic deformation fills the gap and forms a sealing barrier, which not only prevents the semi-solid grease 9 inside the probe housing 3 from leaking, but also prevents external dust, moisture and other impurities from entering the internal structure, thus protecting the ultrasonic probe 6 and the gear ring transmission mechanism.

[0045] The connecting cable 5 is a shielded cable that passes through the pre-drilled holes in the probe housing 3 and the rotating housing 4. A sealing structure is provided at the drilling hole. The metal shielding layer of the shielded cable blocks external electromagnetic interference with the ultrasonic signal, ensuring accurate signal transmission between the ultrasonic probe 6 and external equipment. The sealing structure at the drilling hole (such as a sealing sleeve or stuffing box) tightly wraps the connecting cable 5, filling the gap between the cable and the hole wall, preventing semi-solid grease 9 from leaking from the drilling hole, and reducing wear on the connecting cable 5 during equipment vibration or rotation, thus extending the cable's service life.

[0046] The taper of the conical ramp 202 is 30°-60°, consistent with the taper of the conical head of the ultrasonic probe 6. The taper of the conical ramp 202 matches the conical head of the ultrasonic probe 6, and the two fit together to form a smooth, tapered end. This allows the semi-solid grease 9 to flow smoothly along the conical surface when the ultrasonic probe 6 rotates at high speed, reducing resistance from eddies and turbulence and improving rotational efficiency. The 30°-60° taper range balances the reduction in fluid resistance with the rationality of the ultrasonic signal transmission path, avoiding situations where the taper is too small, resulting in insignificant resistance reduction, or too large, leading to increased ultrasonic signal reflection loss at the conical surface.

[0047] The ultrasonic probe 6 rotates at speeds ranging from 3000 r / min to 10000 r / min. The meshing transmission between the scanning internal gear ring 7 and the scanning eccentric gear ring 8 enables stable rotation within this speed range. The shear resistance and lubrication effect of the semi-solid grease 9 meet the friction loss requirements at this speed, preventing the ultrasonic probe 6 from overheating or wearing due to friction. The sealing structure (sealing membrane, sealing gasket) can still maintain a reliable seal under the centrifugal force generated at this speed, avoiding grease leakage, ensuring continuous and stable ultrasonic signal transmission, and achieving efficient scanning at high speeds.

[0048] The semi-solid grease 9 has a filling rate of 95%-100% of the inner cavity volume of the probe housing 3. A filling rate of 95%-100% ensures that the semi-solid grease 9 completely fills the cavity of the ultrasonic probe 6 during high-speed movement, eliminating the reflection and attenuation effects of air gaps on the ultrasonic signal. This allows the ultrasonic signal to be directly transmitted through the grease, improving signal transmission efficiency. When the filling rate is less than 100%, a small expansion space is reserved to prevent excessive internal pressure caused by the grease expanding due to temperature increases during equipment operation, ensuring the stability of the sealing structure and connections. A filling rate of at least 95% ensures there are no significant air gaps, avoiding any impact on lubrication and transmission performance.

[0049] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-speed ultrasonic scanning lubrication structure, characterized in that, The device includes an ultrasonic scanning sealing membrane, a scanning replacement end cap, a probe housing, a rotating housing, a connecting wire, an ultrasonic probe, a scanning internal gear ring, a scanning eccentric gear ring, and semi-solid grease. The ultrasonic scanning sealing membrane is a biofilm. The ultrasonic probe is housed within the probe housing, which is a sealed structure. The ultrasonic probe can rotate at high speed relative to the probe housing. The scanning replacement end cap has a scanning hole and an inner conical ramp that fits the conical head of the ultrasonic probe, forming a tapered end with a reduced diameter. The semi-solid grease fills the cavity within the probe housing where the ultrasonic probe moves at high speed. The scanning internal gear ring is fixedly connected to the ultrasonic probe, and the scanning eccentric gear ring meshes with the scanning internal gear ring. The rotating housing rotates with the probe housing, and the connecting wire passes through both the probe housing and the rotating housing.

2. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The ultrasonic scanning sealing membrane is a collagen biomembrane and is fixed to the outside of the scanning hole by an adhesive method.

3. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The semi-solid grease is a polyurea-based semi-solid grease with a dropping point ≥200℃ and a cone penetration (25℃, 1 / 4) of 265-295 (0.1mm).

4. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The scanning and replacement end cap is detachably connected to the probe housing via a threaded connection.

5. The high-speed ultrasonic scanning lubrication structure according to claim 4, characterized in that, The scanning internal gear ring is interference-fitted with the ultrasonic probe, and the scanning eccentric gear ring is driven to rotate by an external drive motor.

6. The high-speed ultrasonic scanning lubrication structure according to claim 5, characterized in that, The probe housing and the rotating housing are connected by a bearing, and a sealing gasket is provided at the connection point.

7. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The connecting wire is a shielded cable, which passes through the reserved wire hole in the probe housing and the rotating housing, and the wire hole is equipped with a sealing structure.

8. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The taper of the conical ramp is 30°-60°, which is consistent with the taper of the conical head of the ultrasonic probe.

9. The high-speed ultrasonic scanning lubrication structure according to claim 1, characterized in that, The rotational speed range of the ultrasonic probe is 3000 r / min to 10000 r / min.

10. The high-speed ultrasonic scanning lubrication structure according to any one of claims 1-9, characterized in that, The semi-solid grease is filled to 95%-100% of the inner volume of the probe housing.

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