Coupling driving device for high-viscosity coupling fluid

Abstract

The invention relates to the technical field of high-viscosity fluid low-speed driving, aims to solve the problem of continuous low-speed supply of high-viscosity fluid, and discloses a high-viscosity coupling fluid coupling driving device which comprises a transmission machine cover shell assembly and a coupling fluid cylinder assembly connected with the transmission machine cover shell assembly. A power execution assembly and a transmission assembly which are in transmission connection are installed in the transmission machine cover shell assembly, the transmission assembly is provided with a propelling head, and the power execution assembly drives the propelling head to evenly extrude high-viscosity coupling fluid in the coupling fluid cylinder assembly and convey the high-viscosity coupling fluid to the surface of an ultrasonic probe. The coupling device is used for realizing coupling of the ultrasonic probe and a detected workpiece. The flow of high-viscosity coupling fluid can be adjusted, low-speed continuous and uniform supply is achieved, it is guaranteed that a thin layer of coupling fluid is formed between the ultrasonic probe and a detected workpiece, and the good coupling effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of low-speed driving of high-viscosity fluids, and in particular to a coupling driving device for high-viscosity coupling fluids. Background Art

[0002] In the field of automatic ultrasonic inspection for non-destructive testing, the fluid recyclable coupling method is generally adopted. The recyclable coupling method usually uses water with good fluidity as the coupling fluid, and uses a water pump to pump water from a tarp or a water tank into a water pipe. The pumped water is sent to each ultrasonic probe through a water distributor. After the water flows out of the ultrasonic probe's hydrophobic hole, it enters the tarp or water tank below for recovery, and this cycle is repeated to ensure the coupling of the ultrasonic probe. However, in actual applications, due to the influence of the surrounding pipelines, branch pipes, scaffolding and other detection environmental factors, the tarps and collection tanks required for the reciprocating water circulation cannot be arranged, and the on-site arrangement of water pipes, water pumps, tarps, water tanks and other recovery devices will also take a lot of time. In particular, during the automatic ultrasonic inspection of nuclear power plant equipment, it will also be affected by radiation, and the recyclable method is subject to many restrictions.

[0003] When using traditional pump drives such as centrifugal pumps, diaphragm pumps, vacuum pumps, etc., either they cannot suck in high-viscosity coupling fluids such as centrifugal pumps; or when conveying high-viscosity fluids, the resistance will increase, which will cause the temperature at the forced inlet and outlet to rise, causing the diaphragm pump to overheat. Both are not suitable for slow, continuous, and uniform-speed coupling drives of high-viscosity coupling fluids.

[0004] Chinese patent CN207619005U records an automatic dispensing device for high-viscosity liquids. The dispensing device disclosed therein is to dispense high-viscosity liquids into different containers and bags, and is not a coupling drive device for high-viscosity liquids. Currently, there is no mature technology or product for the slow, continuous and uniform supply of high-viscosity fluids. Summary of the invention

[0005] The purpose of the present invention is to provide a coupling drive device for high-viscosity coupling fluid, which solves the problem of continuous low-speed supply of high-viscosity fluid, and the fluid flow rate is adjustable. When used in industrial ultrasonic automatic inspection, it is ensured that a thin coupling fluid layer with a thickness less than 1 / 4 wavelength is formed between the ultrasonic probe and the inspected workpiece, and finally the requirement of good coupling effect is achieved.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A coupling drive device for a high-viscosity coupling fluid comprises a transmission cover housing assembly and a coupling fluid cylinder assembly connected to the transmission cover housing assembly, wherein a power actuator assembly and a transmission assembly connected in a transmission manner are installed in the transmission cover housing assembly, wherein the transmission assembly has a propulsion head, and the power actuator assembly drives the propulsion head to uniformly extrude the high-viscosity coupling fluid in the coupling fluid cylinder assembly and transport it to the surface of an ultrasonic probe, so as to achieve coupling between the ultrasonic probe and a workpiece to be inspected.

[0008] In some embodiments, the power execution component has a transmission motor, and a top-thread type transmission gear is provided on the output shaft of the transmission motor.

[0009] In some embodiments, the power execution assembly has a T-shaped support plate, the transmission motor is mounted on the side of the T-shaped support plate, and the bottom surface is fixed to the transmission cover housing assembly by screws.

[0010] In some embodiments, the power actuator assembly has a reduction gearbox to achieve a rotation speed of 5 r / min, thereby ensuring low-speed supply of the high-viscosity coupling fluid.

[0011] In some embodiments, the transmission assembly includes a keyless transmission gear, a rotating shaft, a coupling, a screw nut, a transmission screw, and a push rod. The keyless transmission gear is installed on the rotating shaft and meshes with the top screw transmission gear. The rotating shaft and the transmission screw are connected through the coupling. The screw nut is slidably arranged on the transmission screw. The screw nut is fixedly connected to the push rod, and the thrust head is installed on the end of the push rod.

[0012] In some embodiments, the transmission assembly has a set of bearing seats, and the bearing seats fix the rotating shaft and the transmission screw.

[0013] In some embodiments, the screw nut and the push rod are fixedly connected via an L-shaped connecting plate.

[0014] In some embodiments, the coupling fluid cylinder assembly includes a coupling fluid cylinder, a coupling fluid cone is provided in the coupling fluid cylinder, the high-viscosity coupling fluid is provided in the coupling fluid cone, a coupling fluid cone baffle is provided at the bottom of the coupling fluid cylinder, and a quick-connect connector is installed at the bottom of the coupling fluid cone baffle.

[0015] In some embodiments, the transmission cover housing assembly includes a first housing and a second housing that are detachably connected, and a sealing strip or a dustproof sticker is provided between the first housing and the second housing.

[0016] In some embodiments, the coupling drive device includes a frame, and the transmission cover housing assembly is mounted on the frame.

[0017] Compared with the prior art, the coupling drive device of the high-viscosity coupling fluid provided by the present invention has the following beneficial effects:

[0018] The present invention realizes adjustable flow rate of high-viscosity coupling fluid and low-speed continuous and uniform supply to ensure that a thin layer of coupling fluid is formed between the ultrasonic probe and the inspected workpiece, achieving a good coupling effect. The present invention is suitable for driving and supplying high-viscosity coupling fluid, and the coupling fluid flows out stably.

[0019] During automatic ultrasonic inspection, the high-viscosity coupling fluid forms a thin layer (d<<l / 4λ) to ensure good coupling of ultrasonic detection.

[0020] The present invention can develop and design the capacity of the coupling fluid cone according to different pipe diameters or ultrasonic scanning times, and has strong detection versatility.

[0021] Furthermore, the reduction motor used in the present invention has a large reduction ratio and adopts a screw rotation transmission method, which controls the screw to advance about 2 cm per minute, meeting the requirement that 1000 ml of coupling fluid can be used for 1 hour.

[0022] Furthermore, the cylindrical structure thrust head with inscribed grooves adopted in the present invention ensures the tightness of contact between the thrust head and the surface of the coupling fluid cone piston, prevents extrusion damage caused by hard contact, and improves transmission stability.

[0023] Furthermore, the conical cylinder of the present invention adopts an eccentric distributed design to ensure that the two sides of the power rotation component and the two sides of the coupling fluid cylinder can be centrally assembled, which can improve the stability of the mechanism and make the conical cylinder piston evenly stressed when the transmission component is squeezed, thereby improving the uniformity of the coupling fluid supply.

[0024] Furthermore, the transmission cover housing of the present invention is fixed on an aluminum alloy profile bracket, which is convenient for use in complex environments, can effectively reduce the complexity of the installation and layout of the automatic ultrasonic inspection coupling fluid system, and improve the work efficiency of production operations.

[0025] Furthermore, the coupling fluid cylinder assembly of the present invention is fixed to the frame shell with anti-slip thumb screws. After the proportioned coupling fluid in the coupling fluid cone is used up, it can be easily taken out and replaced. The coupling fluid cylinder assembly is taken out through the coupling fluid cylinder handle. Each time, only the coupling fluid cone needs to be replaced to meet the scanning of the next weld. The operation is simple and feasible. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the technical description.

[0027] Figure 1A schematic structural diagram of a coupling drive device for a high-viscosity coupling fluid provided by the present invention;

[0028] Figure 2 A schematic diagram of the structure of the power execution assembly and the transmission assembly provided by the present invention;

[0029] Figure 3 A cross-sectional view of a power execution assembly and a transmission assembly provided by the present invention;

[0030] Figure 4 A schematic diagram of the structure of the coupling fluid cylinder assembly provided by the present invention, wherein a part of the internal structure is shown in section;

[0031] Figure 5 This is a schematic structural diagram of the power execution assembly provided by the present invention.

[0032] Description of reference numerals:

[0033] 1-first shell, 2-T-shaped bracket, 3-second shell, 4-L-shaped connecting piece, 5-frame, 6-fixing block, 7-leg, 8-coupling fluid cone baffle, 9-handle, 10-coupling fluid cylinder, 11-propelling head, 12-L-shaped connecting plate, 13-coupling fluid cone, 14-quick plug connector, 15-T-shaped support plate;

[0034] 1001- transmission motor, 1002- top screw type transmission gear, 1003- bearing seat, 1004- keyless transmission gear, 1005- rotating shaft, 1006- coupling, 1007- lead screw nut, 1008- transmission screw, 1009- push rod, 1010- screw, 1101- high viscosity coupling fluid. DETAILED DESCRIPTION

[0035] The following is further explained in detail through specific implementation methods.

[0036] like Figures 1 to 5 As shown, the present invention provides a coupling drive device for high-viscosity coupling fluid, which includes a transmission cover housing assembly, a power actuator assembly, a transmission assembly, a coupling fluid cylinder assembly, and a frame 5. The power actuator assembly is used to provide transmission power, and its transmission motor 1001 is fixed to the transmission cover housing through a T-shaped support plate 15. A top-thread type transmission gear 1002 is installed on the transmission motor 1001 to output motor torque. The transmission screw 1008 in the transmission assembly rotates to convert the rotational torque into a linear thrust, and the coupling fluid cone cylinder piston is pressed against the thrust head 11 to uniformly extrude the high-viscosity coupling fluid in the cone cylinder and transport it to the surface of the ultrasonic probe to achieve the coupling of the ultrasonic probe and the workpiece to be inspected. The transmission motor 1001 is externally connected to a speed controller, and the motor speed can be controlled by a speed knob. Different speed modes can be used according to different objects of on-site inspection.

[0037] After the coupling fluid cylinder assembly is connected and matched with the transmission cover housing assembly, it is installed on the frame 5 through the T-shaped surface of the transmission cover housing assembly. The side of the transmission cover housing is processed with a threaded hole, and the transmission cover housing assembly and the frame 5 are connected through the L-shaped connecting piece 4. One end of the through hole on the L-shaped connecting piece 4 is connected to the threaded hole on the side of the transmission cover housing by screws, and the other end is connected to the nut on the frame 5 by screws, finally forming a non-loose whole.

[0038] like Figure 1 As shown, the transmission cover housing assembly is divided into a first housing 1 and a second housing 3. The first housing 1 contains a bearing seat mounting platform for mounting the bearing seat 1003. The first housing 1 and the second housing 3 form a transmission cover housing assembly. Four mounting ears are arranged around the transmission cover housing. The first housing 1 and the second housing 3 are connected and fixed by threaded holes of the mounting ears. The matching of the transmission cover housing is achieved by connecting and fixing the four mounting ears. The transmission cover housing assembly is fixed on the frame 5 through a T-shaped bracket 2. The first housing 1 and the second housing 3 are both T-shaped hollow structures, which are large at the top and narrow at the bottom, which can effectively ensure that the center of gravity of the overall mechanism is centered and improve the stability of the equipment. The connecting surfaces of the first housing 1 and the second housing 3 are parallel, and dustproof stickers are affixed to ensure the sealing of the cover housing to prevent collision and dust entry. The power actuator assembly and the transmission assembly are both installed inside the transmission cover housing, which reduces the contact between dust and the power actuator assembly and the transmission assembly and increases the service life of the parts.

[0039] As an implementable manner, the first shell 1 and the second shell 3 are made of aluminum alloy, and the surface is anodized to enhance the surface hardness.

[0040] As an implementable manner, the frame 5 is an aluminum alloy frame.

[0041] The frame 5 is provided with height-adjustable legs 7. By adjusting the height of the legs 7, the frame 5 can be stably erected on uneven surfaces, thereby ensuring the stability of the equipment operation. The frame 5 can also be placed horizontally or at any angle.

[0042] The L-shaped connecting piece 4 is used to connect the transmission cover housing assembly and the coupling fluid cylinder assembly. The coupling fluid cylinder assembly is fixed by a large head anti-slip screw. When installing and disassembling, only the screw needs to be unscrewed and the handle 9 can be grasped to realize the disassembly of the coupling fluid cylinder assembly, which is convenient for on-site replacement and replenishment of the coupling fluid.

[0043] The coupling fluid cylinder components are all made of polyoxymethylene resin, which can quickly clamp the cone cylinder and reduce the weight of the parts. The L-shaped connecting piece 4 is made of aluminum alloy and has an arc structure at the right angle (such as Figure 4As shown), the parts' ability to resist stress and strain is improved, and the hard anodizing treatment on the surface of the aluminum alloy enhances the surface hardness of the parts.

[0044] like Figure 2 As shown, the top screw type transmission gear 1002 and the keyless type transmission gear 1004 cooperate to output the motor torque, and the gear ratio is 1:2, driving the rotating shaft 1005 (indicated in the figure, the rotating shaft is below the bearing seat) to rotate. The rotating shaft 1005 is connected to the transmission screw 1008 through the coupling 1006. The transmission screw 1008 rotates with the rotation of the rotating shaft 1005. With the rotation of the transmission screw 1008, the screw nut 1007 realizes linear motion.

[0045] The transmission screw 1008 is a trapezoidal screw with a pitch of 2mm. When the transmission motor 1001 rotates at 5r / min and the transmission gear ratio is 1:2, the linear motion speed of the push rod 1009 can be 5mm / min, that is, the high viscosity coupling fluid flow rate of 5πr can be stably extruded. 2 mm 3 , where r is the radius of the coupling syringe. Coupling fluid cones 13 (containers for high-viscosity coupling fluids) of different radii are installed to adapt to different ultrasonic inspection requirements, which can meet the good coupling of ultrasonic inspection probes, the shorter lead screw pitch and the gear transmission ratio, ensuring that the push rod 1009 moves slowly and evenly to extrude the cone piston (which comes with the coupling fluid cone 13), achieving slow and even outflow of high-viscosity coupling fluid, and finally transporting it to the surface of the ultrasonic probe through the connecting pipe to achieve coupling between the probe and the workpiece.

[0046] The keyless transmission gear 1004 is installed on the rotating shaft 1005 to transmit the motor output torque to the gear rotating shaft. The keyless transmission gear 1004 can easily move the gear installation position, without machining a keyway or step on the rotating shaft 1005 for fixing the gear. Different positions installed on the rotating shaft 1005 can be adjusted to adapt to motors with different output shaft models.

[0047] The transmission shaft 1009 is connected to the transmission screw 1008 through an L-shaped connecting plate 12, and the L-shaped connecting plate 12 is fixed on the screw nut 1007. The transmission shaft realizes linear motion as the screw nut 1007 moves. A linear bearing is installed on the transmission cover housing. The linear bearing is concentrically matched with the transmission shaft. The linear bearing is used to guide and fix the transmission shaft to realize the function of extruding the coupling fluid cone piston and extruding the coupling fluid.

[0048] like Figure 2 and Figure 3 As shown, three bearing seats 1003 are installed on the first housing 1 of the transmission cover to fix the rotating shaft 1005 and the transmission screw 1008. The rotating shaft 1005 is composed of two bearing seats 1003 ( Figure 2The transmission screw 1008 is connected to the rotating shaft 1005 by a coupling 1006, and one end of the transmission screw 1008 is inserted into the leftmost bearing seat. This fixed connection method can ensure smooth motion transmission without left and right or up and down shaking.

[0049] like Figure 3 As shown, the screw nut 1007 is connected to the push rod 1009 through the L-shaped connecting plate 12. The upper end surface of the push rod 1009 is processed with a threaded hole and is fixed to the L-shaped connecting plate 12 by a hexagon socket cylindrical head screw. As the screw nut 1007 moves forward and backward, the push rod 1009 also moves forward and backward.

[0050] The lower end face of the push rod 1009 (with the marked figure as a reference) has a threaded hole, and an inscribed groove structure is provided in the push head 11. The push head 11 is connected to the push rod 1009 by a hexagon socket cylindrical head screw, and the conical cylinder piston is pressed to push out the coupling fluid. The conical cylinder piston is made of elastic rubber material, which can make the conical cylinder piston evenly stressed and slowly and evenly extrude the high-viscosity coupling fluid.

[0051] The thrust head 11 is designed as a cylindrical structure with an inscribed groove, which is stuck on the push rod 1009 and is concentrically matched with the push rod 1009 and the coupling fluid cone. The thrust head 11 squeezes the piston in the coupling fluid cone as the transmission shaft moves forward.

[0052] As an implementable method, the propulsion head 11 is made of elastic rubber material. This design ensures the tightness of the contact between the propulsion head 11 and the surface of the coupling fluid cone piston, prevents extrusion damage caused by hard contact, and improves transmission stability.

[0053] As an practicable manner, the material of the L-shaped connecting plate 12 is aluminum alloy, and the surface is hard anodized.

[0054] As an implementable method, the lead of the transmission screw 1008 is 2mm, with a self-locking function, and a trapezoidal thread. The power transmission is stable and the vibration caused by the rotation of the screw during mechanical transmission is reduced. The shorter pitch facilitates the slow extrusion of the coupling fluid, which is beneficial to the continuous low-speed operation of the device and realizes the slow supply of the coupling fluid.

[0055] like Figure 4 As shown, the coupling fluid cylinder assembly comprises an L-shaped connecting piece 4, a coupling fluid cylinder 10, a high viscosity coupling fluid 1101, a coupling fluid cone 13, a coupling fluid cone baffle 8, and a quick connector 14. The coupling fluid cylinder assembly is connected to the transmission cover housing assembly through the L-shaped connecting pieces 4 on both sides.

[0056] The L-shaped connecting piece 4 is made of aluminum alloy, and its surface is hard anodized to enhance the surface hardness. The L-shaped connecting piece 4 has rounded corners at the connection to enhance the load resistance of the part. The thrust motor slowly pushes the high-viscosity coupling fluid to flow.

[0057] The L-shaped connecting piece 4 is used to connect the coupling fluid cylinder assembly and the transmission cover housing assembly. The coupling fluid cone baffle 8 is used to fix the front end of the coupling fluid cone 13 to prevent the coupling fluid cone 13 from spilling. The coupling fluid cone baffle 8 and the coupling fluid cone 13 are placed concentrically. The coupling fluid cylinder 10 is equipped with a handle 9, which is convenient for quickly taking out the coupling fluid assembly and replacing the coupling fluid cone 13 therein during on-site use, and replenishing or replacing the coupling fluid. The coupling fluid cone baffle 8 is a hollow structure in the middle of two semicircles, which is fixed to the coupling fluid cylinder assembly by screws.

[0058] As an implementable method, the coupling fluid cylinder 10 is made of polyoxymethylene resin, which reduces the mass of the coupling fluid cylinder assembly. The coupling fluid cylinder container is in the shape of a conical cylinder, and the conical cylinder is eccentrically distributed to ensure that the two sides of the power transmission assembly and the two sides of the coupling fluid cylinder can be assembled in the center, which can improve the stability of the mechanism, so that when the transmission assembly is squeezed, the conical cylinder piston is evenly stressed, and the coupling fluid supply uniformity is improved.

[0059] A handle 9 is designed on the side of the coupling fluid cylinder assembly, which is convenient for real-time replacement during the on-site automatic ultrasonic inspection, and can ensure an automatic ultrasonic inspection lasting no less than 12 hours. When the inspection is carried out on-site, the coupling fluid cylinder 10 can be removed from the transmission cover housing assembly through the handle 9 on the coupling fluid cylinder 10, and a matching coupling fluid cone 13 filled with high-viscosity coupling fluid 1101 can be inserted, which is convenient for replacement and saves inspection time.

[0060] The outer wall of the coupling fluid cylinder 10 is provided with an arc chamfer, and the inner wall is a cylindrical through structure, and is eccentrically through. The inner wall diameter is about 5mm larger than the outer diameter of the coupling fluid cone, which is convenient for inserting the coupling cone and fixing it firmly. For different inspection objects, a hollow cylindrical block of corresponding diameter can be inserted into the inner wall of the cylinder. The outer diameter of the cylindrical block is equal to the diameter of the cylindrical hole on the inner wall of the cylinder, and the inner diameter is the corresponding coupling fluid cone diameter. When the inspection object uses multiple probes, large chip size, and large coupling flow, a large-diameter coupling fluid cone can be used. When the inspection object uses a single probe, a small chip size, and a small coupling flow, a small-diameter coupling fluid cone can be used. The cylinder has strong versatility and can be adapted to automatic ultrasonic coupling inspection within 20 probes.

[0061] The surface of the coupling fluid cylinder 10 is scaled to facilitate observation of the volume of the coupling fluid. When adding the coupling fluid, coupling fluids of different scaled volumes can be added according to different inspection objects.

[0062] The bottom of the coupling fluid cone 13 is a quick-connect connector 14, which is convenient for quick plugging and unplugging of the pipe. One end of the pipe is connected to the coupling fluid cone, and the other end is connected to the water distributor of the automatic ultrasonic inspection mechanical equipment. The pipe outlet of the water distributor is distributed to the surface of each ultrasonic probe to achieve ultrasonic workpiece coupling. The quick-connect connector 14 can adapt to different pipes with sizes of φ6mm to φ14mm.

[0063] After the quick-connect connector 14 is connected to the water pipe, it is used to transport the high-viscosity coupling fluid 1101 to the ultrasonic probe for ultrasonic coupling, and can adapt to a variety of water pipe diameters to achieve different coupling fluid flow rates. The quick-connect connector 14 is arranged below the coupling fluid cone baffle 8, and the quick-connect connector 14 is connected to the coupling fluid cone 13 through a thread.

[0064] As an implementable manner, the high-viscosity coupling fluid 1101 is a high-viscosity liquid having a kinematic viscosity greater than 10 Pa·s.

[0065] like Figure 5 As shown, the power execution assembly includes a transmission motor 1001, a T-shaped support plate 15, a top-thread type transmission gear 1002, and a screw 1010. The bottom surface of the T-shaped support plate 15 is fixed to the side wall of the first housing 1 of the transmission cover by screws 1010, and the side surface is connected to the threaded hole on the end surface of the transmission motor 1001 by hexagonal flat head screws. The top-thread type transmission gear 1002 is supported on the D-shaped shaft of the transmission motor 1001 by the top screw of the gear to achieve gear fixation. The output shaft of the transmission motor 1001 drives the top-thread type transmission gear 1002 to achieve torque output and power transmission. The power execution assembly can provide a torque of 35kg.cm to drive high-viscosity coupling fluid. The top-thread type transmission gear 1002 is meshed with the keyless type transmission gear 1004.

[0066] The transmission motor 1001 is externally connected to a PWM speed knob, which can stably transmit PWM pulse waves to the transmission motor 1001. The speed of the transmission motor 1001 is adjusted by tightening and loosening the speed knob, and finally the flow control of the high-viscosity coupling fluid is achieved.

[0067] The speed control scheme adopted in the present invention is PWM pulse speed control. The rated voltage of the motor is 12V, the no-load speed is 5r / min, and the PWM pulse frequency f is adjusted by the speed control knob to control the motor speed W, thereby regulating the coupling fluid flow Q output per second.

[0068] The motor speed can be calculated from the PWM pulse speed regulation principle:

[0069]

[0070] In the formula, ton is the pulse width, and low-speed stable coupling supply can be achieved by adjusting the pulse frequency f; T is the period, the value is 5tonf, and the unit is r / min.

[0071] The coupling fluid flow rate Q output per second can be calculated from the lead of the screw and the diameter of the cone, and the output flow rate V can be calculated from the output pipe diameter.

[0072]

[0073] Where S is the lead of the screw; D is the diameter of the cone barrel; d is the output pipe diameter.

[0074] As an implementable method, the basic motor parameters used by the transmission motor 1001 are: voltage 12V, no-load speed 5r / min, output torque 35kg.cm, thereby providing a large thrust for the high-viscosity coupling fluid.

[0075] The reduction ratio between the top thread type transmission gear 1002 and the keyless type transmission gear 1004 is 1:2, which further reduces the supply speed of the coupling fluid.

[0076] As an implementable manner, the screw 1010 is a hexagon socket head screw.

[0077] The coupling fluid flowing out of the probe forms a thin layer on the pipe without dripping, and is directly wiped off after the inspection. The coupling medium used in the non-recycling mode needs to be a high-viscosity coupling fluid, and needs to flow out slowly and uniformly to form a thin layer of coupling fluid (d<<l / 4λ), and the output is not more than 1L / h.

[0078] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A coupling drive device for a high-viscosity coupling fluid, characterized in that: The invention comprises a transmission cover housing assembly and a coupling fluid cylinder assembly connected to the transmission cover housing assembly, wherein a power actuator assembly and a transmission assembly connected in a transmission manner are installed in the transmission cover housing assembly, and the transmission assembly has a propulsion head (11). The power actuator assembly drives the propulsion head (11) to squeeze out the high-viscosity coupling fluid (1101) in the coupling fluid cylinder assembly and transport it to the probe surface, so as to achieve coupling between the probe and the workpiece to be inspected.

2. The coupling drive device of high viscosity coupling fluid according to claim 1, characterized in that: The power execution component comprises a transmission motor (1001), and a top-thread type transmission gear (1002) is arranged on the output shaft of the transmission motor (1001).

3. The coupling drive device of high viscosity coupling fluid according to claim 2, characterized in that: The power execution assembly has a T-shaped support plate (15), the transmission motor (1001) is mounted on the side of the T-shaped support plate (15), and the bottom surface is fixed to the transmission cover housing assembly by screws (1010).

4. The coupling drive device of high viscosity coupling fluid according to claim 2, characterized in that: The power actuator assembly has a reduction box to achieve a rotation speed of 5 r / min to ensure low-speed supply of the high-viscosity coupling fluid (1101).

5. The coupling drive device of high viscosity coupling fluid according to claim 1, characterized in that: The transmission assembly comprises a keyless transmission gear (1004), a rotating shaft (1005), a coupling (1006), a screw nut (1007), a transmission screw (1008), and a push rod (1009); the keyless transmission gear (1004) is mounted on the rotating shaft (1005) and meshes with the top screw transmission gear (1002); the rotating shaft (1005) and the transmission screw (1008) are connected via the coupling (1006); the screw nut (1007) is slidably mounted on the transmission screw (1008); the screw nut (1007) and the push rod (1009) are fixedly connected; and the push head (11) is mounted at the end of the push rod (1009).

6. The coupling drive device of high-viscosity coupling fluid according to claim 5, characterized in that: The transmission assembly has a set of bearing seats (1003), and the bearing seats (1003) fix the rotating shaft (1005) and the transmission screw rod (1008).

7. The coupling drive device of high-viscosity coupling fluid according to claim 5, characterized in that: The screw nut (1007) and the push rod (1009) are fixedly connected via an L-shaped connecting plate (12).

8. The coupling drive device of high-viscosity coupling fluid according to claim 1, characterized in that: The coupling fluid cylinder assembly comprises a coupling fluid cylinder (10), a coupling fluid cone (13) is arranged inside the coupling fluid cylinder (10), the high-viscosity coupling fluid (1101) is arranged inside the coupling fluid cone (13), a coupling fluid cone baffle (8) is arranged at the bottom of the coupling fluid cylinder (10), and a quick-connect connector (14) is installed at the bottom of the coupling fluid cone baffle (8).

9. The coupling drive device of high viscosity coupling fluid according to claim 1, characterized in that: The transmission cover housing assembly comprises a first housing (1) and a second housing (3) which are detachably connected, and a sealing strip or a dustproof sticker is provided between the first housing (1) and the second housing (3).

10. The coupling drive device of high viscosity coupling fluid according to claim 1, characterized in that: The coupling drive device comprises a frame (5), and the transmission cover housing assembly is installed in the frame (5).

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