CN114216965B - Ultrasonic detection pretreatment method for crane - Google Patents

Abstract

A crane ultrasonic detection pretreatment method uses a crane ultrasonic detection auxiliary device which is arranged in front of a nondestructive detection vehicle and is used for cleaning a steel rail of a crane cart, and comprises the following steps: the device comprises a clamping arm shell, a transverse clamping arm, a brush body assembly and an adjusting device; aligning the ultrasonic detection auxiliary device with the steel rail to ensure that the two brush body assemblies are distributed on the left side and the right side of the steel rail; the adjusting device acts to adjust the space between the two transverse moving clamping arms, namely the space between the two brush body assemblies, so as to clamp the steel rail; step 2, walking along the steel rail and cleaning the steel rail: the ultrasonic auxiliary device moves along with the nondestructive testing vehicle, and the brush body assembly cleans the steel rail.

Description

A preprocessing method for ultrasonic testing of cranes

technical field

The application relates to the technical field of non-destructive testing of cranes, and in particular to a preprocessing method for ultrasonic testing of cranes.

Background technique

With the development of my country's economy and the increase of international trade, the hoisting business is also booming. Large-scale hoisting equipment is an important material basis for the realization of construction mechanization, and it is an indispensable equipment in modern construction. It works intermittently to lift objects or lift and move objects within a limited range. The crane transmission chain includes motors, reducers, steel cables, rails, etc.

Crane trolley rail inspection is a typical application of non-destructive testing. The existing technology has been developed to the extent that a hand-push type rail inspection vehicle can walk on the rail to detect the rail and find damages such as cracks and defects. The patent with the publication number CN202110443399.0 discloses an ultrasonic device for non-destructive testing of steel rails, which is a hand-pushed non-destructive testing vehicle. However, in actual operation, due to the harsh operating environment of the crane trolley rail, it is usually laid directly on the ground. As a result, the surface of the rail is covered with dust and oxide chips. seriously affect the test results.

Therefore, it is necessary to design a device for cleaning the surface of the rail. Most of the existing technologies directly use roller brushes for cleaning. However, it has the following problems: 1. It is difficult to completely match the shape of the rail. The cylindrical roller brush can usually only clean one plane, and it is difficult to clean the rail with an I-shaped section in all directions; 2. Additional assembly is required. The power supply and the motor are used as power devices, which are expensive and complicated in structure. In this case, a device is designed, which can perfectly match the shape of the rail to achieve thorough cleaning in all directions; and cleverly uses the relative movement of the non-destructive testing vehicle relative to the rail as a power source to clean the rail by itself.

SUMMARY OF THE INVENTION

A kind of crane ultrasonic detection preprocessing method,

A crane ultrasonic testing auxiliary device is used, which is arranged in front of the non-destructive testing vehicle to clean the rails of the crane cart, including:

The clamp arm shell is fixed in front of the non-destructive testing vehicle;

There are two traverse clamp arms, and one traverse clamp arm is slidable on the left and right sides of the clamp arm shell;

There are two brush body assemblies, each of which is respectively provided with a brush body assembly;

The adjusting device is arranged in the clamping arm shell to adjust the distance between the two laterally moving clamping arms;

Step 1, Align the clamping rails:

Align the ultrasonic testing auxiliary device with the rail, so that the two brush assemblies are distributed on the left and right sides of the rail;

The adjustment device acts to adjust the distance between the two transverse clamping arms, that is, the distance between the two brush body assemblies, to clamp the rail;

Step 2, walk along the rails and clean the rails:

The ultrasonic testing auxiliary device travels with the non-destructive testing vehicle, and the brush body assembly cleans the rail.

As a further technical solution:

The clip arm housing includes:

The hollow vertical cylinder is arranged in the longitudinal direction, and the inner wall of the hollow vertical cylinder is respectively provided with an upper convex ring and a middle convex ring from top to bottom;

The horizontal sliding cylinder, the left and right sides of the lower end of the hollow vertical cylinder are respectively provided with a horizontal sliding cylinder, the connection between each horizontal sliding cylinder and the hollow vertical cylinder is also provided with a lower limit hole, and the lower end of each horizontal sliding cylinder is also provided with a lower limit hole. Also formed with horizontal sliding holes;

The adjusting device includes:

The drive bevel wheel assembly includes a rotatable drive disc arranged between the upper convex ring and the middle convex ring, a drive bevel gear arranged under the drive disc, an axial slideway formed on the upper end of the drive disc, The peripheral holes are evenly distributed on the outer edge of the upper end face of the axial slideway, and the central circular hole is set in the middle of the upper end of the axial slideway;

The torsion bar assembly includes a slidable axial sliding block inserted in the axial slideway, a lower locking rod that is uniformly distributed on the upper end face of the axial sliding block in the circumferential direction and is correspondingly inserted into the side sockets one by one, The upper end of the axial slider and the torsion bar body arranged through the central circular hole, the upper end of the torsion bar body is arranged through the upper end face of the hollow vertical cylinder, the upper end of the torsion bar body is also provided with a spring stopper, the torsion bar body The part of the outer wall between the spring baffle and the hollow vertical cylinder is also wound with a compression spring;

The traverse clamp arm includes:

The screw assembly includes a rotatable screw body arranged in a horizontal sliding cylinder, a limit ring groove formed on the outer wall of the screw body and rotatably matched with the corresponding lower limit hole, and formed on the screw body close to the hollow vertical cylinder A driven bevel gear at one end;

The nut assembly includes a nut body slidably arranged in the horizontal sliding cylinder and engaged with the corresponding screw body, a lower connecting block formed under the nut body and arranged through the horizontal sliding hole, and a lower connecting block arranged under the lower connecting block. Clamp body;

The brush body assembly includes:

The brush body shell is fixedly connected with the clamping arm body, and the side of the brush body shell close to the rail is provided with a brush roller side window;

The friction roller is rotatably arranged in the front half of the side window of the brush roller, the upper and lower ends of the friction roller are respectively formed with friction roller shafts that penetrate the brush body shell, and each friction roller shaft is also provided with a friction bevel gear;

The main cleaning roller is rotatably arranged in the back half of the side window of the brush roller. The upper and lower ends of the main cleaning roller are respectively formed with cleaning roller shafts that penetrate the brush body shell, and each cleaning roller shaft is also provided with cleaning rollers. Bevel gear;

There are two side gear shafts, and the upper and lower ends of the brush body shell are respectively provided with one, including the gear shaft body. The shaft body is sequentially provided with a front ring groove, a middle ring groove, and a rear ring groove from front to back, and a blocking protrusion is arranged in the rear ring groove;

The first transmission assembly, corresponding to the side gear shafts one by one, includes a rotatable transmission sleeve sleeved on the corresponding gear shaft body, a first transmission sleeve formed on the inner wall of the transmission sleeve and rotatably matched with the front ring groove. a convex ring, a first front bevel gear formed at the front end of the transmission sleeve and meshed with the friction bevel gear, and a first rear bevel gear formed at the rear end of the transmission sleeve and meshed with the cleaning bevel gear;

The second transmission assembly, corresponding to the side gear shafts one-to-one, includes a rotatable transmission sleeve ring sleeved on the corresponding gear shaft body, a second transmission sleeve formed on the inner wall of the transmission sleeve ring and rotatably matched with the middle ring groove a convex ring, a second front bevel gear formed at the front end of the transmission collar and meshed with the cleaning bevel gear, and a second rear bevel gear formed at the rear end of the transmission collar;

The torsion brush body corresponds to the side gear shafts one by one, and includes a brush body rotating shaft, a rotating shaft through hole arranged on the brush body rotating shaft to sleeve the gear shaft body, and a rotating shaft through hole arranged on the inner wall of the rotating shaft and inserted into the rear ring groove. Limiting bump, the torsion brush body also includes a rotatable auxiliary cleaning roller arranged on the rotating shaft of the brush body, a movable bevel gear formed on the lower end of the auxiliary cleaning roller and meshing with the second rear bevel gear, a torsion spring at the rear end of the gear shaft body;

Based on the specific embodiment of the above-mentioned ultrasonic detection auxiliary device, the step 1 specifically includes the following steps:

Step 1.1, press into the rail:

Place the non-destructive testing vehicle on the rail and align the ultrasonic testing auxiliary device with the rail, and then press down the ultrasonic testing auxiliary device, so that the two brush body assemblies initially surround the steel rail, and the brush body shell is flush with the rail waist of the steel rail ;

Step 1.2, stick to the rail:

Step 1.2.1, the drive bevel wheel assembly rotates;

Step 1.2.2, the brush body shell fits the rail:

The drive bevel wheel assembly drives the left and right traverse clamping arms to act synchronously:

The driving bevel gear drives the driven bevel gear, the limiting ring groove, and the screw body to rotate, and the screw body drives the corresponding nut body, the lower connecting block, and the clamping arm body to move laterally;

The clamping arm bodies of the left and right lateral shifting clamping arms move close together, which drives the brush body assemblies on the left and right sides to move close together;

The brush body shell, the friction roller and the main cleaning roller are close to the rail waist;

Step 1.2.3, twist the brush body to fit the rail:

The torsion brush body located above is squeezed by the rail top, and the brush body rotating shaft deflects in a direction deviating from the rail against the torsion force of the torsion spring and always keeps in contact with the lower slope of the rail top;

The torsion brush body located below is pressed by the rail bottom, and the brush body rotating shaft deflects in a direction deviating from the rail against the torsion force of the torsion spring and always keeps in contact with the upper slope of the rail bottom.

Further, the step 2 specifically includes the following steps:

Step 2.1, friction roller rotation:

Push the non-destructive testing vehicle to drive the ultrasonic testing auxiliary device to walk forward along the rail;

The friction roller rotates and walks on the rail waist of the steel rail;

Step 2.2, clean the rail waist:

The friction bevel gear drives the first front bevel gear, the transmission sleeve and the first rear bevel gear to rotate;

The first rear bevel gear drives the cleaning bevel gear and the main cleaning roller to rotate, and the main cleaning roller rotates in a direction opposite to the friction roller, and cleans the rail waist;

Step 2.3, clean up the rail top and rail bottom:

The cleaning bevel gear drives the second front bevel gear, the transmission collar and the second rear bevel gear to rotate;

The rotation of the second rear bevel gear drives the movable bevel gear and the auxiliary cleaning roller to rotate;

The auxiliary cleaning roller rotates to clean the rail top or rail bottom.

The step 1.2.1, the rotation of the driving bevel wheel assembly, provides the following two embodiments:

Example 1, quick rotation:

The spring baffle is pressed down so that it goes down against the damping of the compression spring, and the lower locking rod is out of contact with the upper locking block;

Quickly rotate the spring baffle, the torsion bar body, the axial slider, and the lower locking lever;

The lower locking rod acts on the side socket, thereby driving the driving disc and the driving bevel gear to rotate.

Embodiment 2, precise rotation:

The adjustment device also includes a precision adjustment device, the precise adjustment device includes a driven worm wheel rotatably arranged on the hollow vertical cylinder above the upper convex ring, the middle of the driven worm wheel is formed with a torsion bar body passing through. The round hole of the worm wheel, the lower end face of the driven worm wheel is evenly distributed with upper locking blocks corresponding to the lower locking rods one by one, and the adjusting device also includes a hollow vertical cylinder that penetrates the horizontal direction and is engaged with the driven worm wheel. The driving worm is provided with a hand-held handle at both ends of the driving worm;

Under normal conditions, the compression spring drives the spring stop plate, the torsion bar body, the axial slider, and the lower locking rod upward, and the lower locking rod is in contact with the upper locking block to lock;

Turn the hand-held handle, drive the worm to drive the driven worm gear, and rotate the upper locking block;

Then drive the lower locking lever to rotate;

The lower locking rod acts on the side socket, thereby driving the driving disc and the driving bevel gear to rotate.

As a further embodiment, before step 1, it also includes step 3, pre-adjusting the depression damping of the torsion bar assembly:

The adjustment device 2 also includes a damping adjustment device, which includes a rotatable inner threaded barrel sleeved on the torsion bar body, and an inner ring groove formed on the inner wall of the inner threaded barrel and rotatably matched with the spring baffle. , a central longitudinal cavity longitudinally arranged in the upper half of the torsion bar body, side longitudinal holes uniformly distributed on the outer circumference of the central longitudinal cavity, slidable sliding longitudinal rods arranged in the central longitudinal cavity, circumferentially uniformly distributed in all The upper end of the sliding longitudinal rod and the threaded inserts arranged through the side vertical holes, the radial insertion rods arranged at the lower end of the sliding longitudinal rod and arranged through the side vertical holes in the circumferential direction, and the slidable ones are arranged on the outer wall of the torsion bar body. The movable retaining ring is connected with the radial insert rod, and the distal end of the threaded insert block is formed with an external thread that engages with the internal thread cylinder;

The press-down damping pre-adjustment method includes the following steps:

Rotate the inner thread barrel;

The internal thread cylinder drives the threaded insert block, the sliding longitudinal rod, the radial insert rod, and the movable retaining ring to move longitudinally;

The movable retaining ring adjusts the compression degree and elastic force of the compression spring in a normal state.

As a further implementation:

The rotating shaft of the brush body and the limiting bump are deflected toward the direction close to the rail by the torsion force of the torsion spring and abut on the blocking bump. In this state, the torsion spring is in a vertical posture.

further:

An upper fixed brush for cleaning the upper end face of the rail top is also arranged below the clamp arm housing.

Going a step further:

The side surface of the clamping arm body is also provided with a side fixing brush for cleaning the side surface of the rail top.

beneficial effect

The ultrasonic testing auxiliary device described in this case can achieve all-round tight coverage of the rail top, rail waist and rail bottom of the I-shaped cross-section rail, and the cleaning effect is good:

The main cleaning roller closely fits the rail waist, the upper fixing brush, the side fixing brush and the auxiliary cleaning roller located above closely fit the top of the rail, and the auxiliary cleaning roller located below closely fits the bottom of the rail. Full coverage of the outer surface of the I-shaped rail.

The ultrasonic testing auxiliary device described in this case uses the movement of the hand-pushed non-destructive testing vehicle relative to the rail to realize the movement of the friction roller on the rail, thereby driving and driving the main cleaning roller, the auxiliary cleaning roller, etc. clean up.

The traveling direction of the main cleaning roller and the auxiliary cleaning roller actually attached to the rail part and the traveling direction of the non-destructive testing vehicle are both moving forward, that is, the main cleaning roller and the auxiliary cleaning roller move forward with the overall direction of the non-destructive testing vehicle. Moving forward, the part close to the rail rotates forward relative to the rail through its self-rotation, so that the rotational speed of the part that actually contacts the rail increases and the cleaning efficiency is increased.

In the ultrasonic testing auxiliary device described in this case, the torsion brush body can adapt to rail tops and rail bottoms with different inclination angles, and maintain a tight fit:

When the torsion brush body moves toward the direction close to the rail with the body of the clamp arm, it is squeezed by the rail top, so that the brush body rotating shaft deflects to the direction deviating from the rail against the torsion force of the torsion spring and always keeps the lower part of the rail top. Bevel fit. For different types of rails, the inclination angles of the rail top and rail bottom are different, and the torsion brush body in this case can have good adaptability.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following drawings will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of the installation of the ultrasonic testing auxiliary device and the non-destructive testing vehicle.

FIG. 2 is a side view of an embodiment of the ultrasonic testing aid.

FIG. 3 is a formal diagram of the first embodiment of the ultrasonic testing auxiliary device.

FIG. 4 is a formal diagram of the second embodiment of the ultrasonic testing auxiliary device.

FIG. 5 is a formal diagram of the third embodiment of the ultrasonic testing auxiliary device.

FIG. 6 is a partial cross-sectional view of an embodiment of the ultrasonic testing aid.

FIG. 7 is a partial cross-sectional view of another embodiment of the ultrasonic testing auxiliary device.

FIG. 8 is an enlarged schematic view of part B in FIG. 7 .

FIG. 9 is a cross-sectional view of section A-A in FIG. 3 (the rail is not shown).

FIG. 10 is a schematic diagram of an embodiment of the brush body assembly.

Figure 11 is a cross-sectional view of one embodiment of a brush body assembly.

FIG. 12 is an enlarged schematic view of part C in FIG. 11 .

FIG. 13 is a cross-sectional view of the D-D section of FIG. 11 (the rail is shown).

icon:

m. steel rail, m1. rail waist, m2. rail top, m3. rail bottom, n. non-destructive testing vehicle, p. upper fixed brush, q. side fixed brush;

1. Clamp arm shell, 11. Hollow vertical cylinder, 11a. Upper convex ring, 11b. Middle convex ring, 12. Horizontal sliding cylinder, 12a. Lower limit hole, 12b. Horizontal sliding hole;

2. Adjustment device;

21. Drive bevel gear assembly, 21a. Drive disc, 21b. Drive bevel gear, 21c. Axial slideway, 21d. Side jack, 21e. Center hole;

22. Torsion bar assembly, 22a. Axial slider, 22b. Lower locking rod, 22c. Torsion bar body, 22d. Spring stop plate, 22e. Compression spring;

23. Precision adjustment device, 23a. driven worm gear, 23b. upper locking block, 23b. driving worm, 23c. hand-held handle;

24. Damping adjustment device, 24a. Internal thread cylinder, 24b. Inner ring groove of cylinder, 24c. Middle longitudinal cavity, 24d. Side longitudinal hole, 24e. Sliding longitudinal rod, 24f. Threaded insert, 24g. Radial insert Rod, 24h. Movable retaining ring;

3. Traverse clamping arm;

31. Screw assembly, 31a. Screw body, 31b. Limit ring groove, 31c. Driven bevel gear;

32. Nut assembly, 32a. Nut body, 32b. Lower connecting block, 32c. Clamp arm body;

4. Brush body assembly, 41. Brush body shell, 41a. Brush roller side window, 42. Friction roller, 42a. Friction bevel gear, 43. Main cleaning roller, 43a. Cleaning bevel gear,

44. Side gear shaft, 44a. Gear shaft body, 44b. Connecting longitudinal rod, 44c. Front ring groove, 44d. Middle ring groove, 44e. Rear ring groove;

45. The first transmission assembly, 45a. The transmission sleeve, 45b. The first convex ring, 45c. The first front bevel gear, 45d. The first rear bevel gear;

46. The second transmission assembly, 46a. The transmission collar, 46b. The second convex ring, 46c. The second front bevel gear, 46d. The second rear bevel gear;

47. Torsion brush body, 47a. Brush body shaft, 47b. Shaft through hole, 47c. Limiting bump, 47d. Secondary cleaning roller, 47e. Active bevel gear, 47f. Torsion spring.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

A kind of crane ultrasonic detection preprocessing method,

A crane ultrasonic testing auxiliary device is used, which is arranged in front of the non-destructive testing vehicle n to clean the steel rail m of the crane cart, including:

The clamp arm shell 1 is fixed in front of the non-destructive testing vehicle n;

There are two traverse clamp arms 3, and one traverse clamp arm 3 is slidably provided on the left and right sides of the clamp arm housing 1;

There are two brush body assemblies 4, and one brush body assembly 4 is respectively provided on each traverse clamping arm 3;

The adjusting device 2 is arranged in the clamping arm housing 1 to adjust the distance between the two laterally moving clamping arms 3;

Step 1, Align the clamping rail m:

Align the ultrasonic testing auxiliary device with the rail m, so that the two brush body assemblies 4 are distributed on the left and right sides of the rail;

The adjusting device 2 acts to adjust the distance between the two transverse clamping arms 3, that is, the distance between the two brush body assemblies 4, to clamp the rail m;

Step 2, walk along the rail m and clean up the rail m:

The ultrasonic testing auxiliary device travels with the non-destructive testing vehicle n, and the brush body assembly 4 cleans the rail m.

As a further technical solution:

The clip arm housing 1 includes:

The hollow vertical cylinder 11 is arranged in the longitudinal direction, and the inner wall of the hollow vertical cylinder 11 is respectively provided with an upper convex ring 11a and a middle convex ring 11b from top to bottom;

The horizontal sliding cylinder 12, the left and right sides of the lower end of the hollow vertical cylinder 11 are respectively provided with a horizontal sliding cylinder 12, and each horizontal sliding cylinder 12 is connected with the hollow vertical cylinder 11. There is also a lower limit hole 12a. Only the lower end of the horizontal sliding cylinder 12 is also formed with a horizontal sliding hole 12b;

The adjusting device 2 includes:

The drive bevel gear assembly 21 includes a rotatable drive disc 21a arranged between the upper convex ring 11a and the middle convex ring 11b, a drive bevel gear 21b arranged below the drive disc 21a, and a drive bevel gear 21b formed on the drive disc 21a The axial slideway 21c at the upper end, the side insert holes 21d uniformly distributed on the outer edge of the upper end face of the axial slideway 21c, and the central circular hole 21e arranged in the middle of the upper end of the axial slideway 21c;

The torsion bar assembly 22 includes an axial slider 22a slidably inserted in the axial slideway 21c, and a lower part which is uniformly distributed on the upper end face of the axial slider 22a in the circumferential direction and is inserted into the side sockets 21d one by one. The locking bar 22b, the torsion bar body 22c disposed on the upper end of the axial slider 22a and passing through the central circular hole 21e, the upper end of the torsion bar body 22c is arranged through the upper end surface of the hollow vertical cylinder 11, the torsion bar body 22c The upper end is also provided with a spring baffle plate 22d, and the part of the outer wall of the torsion bar body 22c between the spring baffle plate 22d and the hollow vertical cylinder 11 is also wound with a compression spring 22e;

The traverse clamp arm 3 includes:

The screw assembly 31 includes a rotatable screw body 31a disposed in the horizontal sliding cylinder 12, a limit ring groove 31b formed on the outer wall of the screw body 31a and rotatably matched with the corresponding lower limit hole 12a, and a limit ring groove 31b formed in the screw The rod body 31a is close to the driven bevel gear 31c at one end of the hollow vertical cylinder 11;

The nut assembly 32 includes a nut body 32a slidably disposed in the horizontal sliding cylinder 12 and engaging with the corresponding screw body 31a, and a lower connecting block 32b formed under the nut body 32a and disposed through the horizontal sliding hole 12b , the clamping arm body 32c located under the lower connecting block 32b;

The brush body assembly 4 includes:

The brush body casing 41 is fixedly connected with the clamping arm body 32c, and the brush body casing 41 is provided with a brush roller side window 41a on the side close to the rail m;

The friction roller 42 is rotatably arranged in the front half of the brush roller side window 41a. The upper and lower ends of the friction roller 42 are respectively formed with friction roller shafts penetrating the brush body shell 41. Each friction roller shaft is also provided with a friction roller shaft. friction bevel gear 42a;

further:

An anti-skid layer made of anti-skid material is formed on the outer wall of the friction roller 42 .

Further, the anti-skid layer is made of rubber material.

Thanks to the above-mentioned improved technical solution, there is sufficient friction between the friction roller 42 and the rail waist m2 of the rail, so that when the device is pushed forward, the friction roller 42 rotates and walks on the rail waist m2 without slipping;

The main cleaning roller 43 is rotatably arranged in the back half of the brush roller side window 41a. The upper and lower ends of the main cleaning roller 43 are respectively formed with cleaning roller shafts penetrating the brush body shell 41. There is also a cleaning bevel gear 43a;

further:

The main cleaning roller 43 at least includes a main roller body made of hard material and a cylindrical bristle layer densely distributed on the main roller body for cleaning the rail m.

Still further, the outer diameter of the main roller body is smaller than the outer diameter of the friction roller 42 , and the outer diameter of the bristle layer is larger than the outer diameter of the friction roller 42 .

Benefiting from the above-mentioned improved technical solution, when the outer wall of the friction roller 42 is in close contact with the rail, the bristle layer is in close contact with the rail to achieve a good cleaning effect, and the secondary roller body does not contact the rail and thus Avoid interfering with the close contact between the friction roller 42 and the rail;

There are two side toothed shafts 44, and the upper and lower ends of the brush body shell 41 are respectively provided with one, including a toothed shaft body 44a. 41 connection, the gear shaft body 44a is sequentially provided with a front ring groove 44c, a middle ring groove 44d, and a rear ring groove 44e from front to back, and the rear ring groove 44e is provided with a blocking protrusion 44f;

The first transmission assembly 45 corresponds to the side pinion 44 one-to-one, and includes a rotatable transmission sleeve 45a sleeved on the corresponding pinion body 44a, formed on the inner wall of the transmission sleeve 45a and connected to the front ring groove 44c. The first convex ring 45b that can be rotatably matched, the first front bevel gear 45c formed at the front end of the transmission sleeve 45a and meshed with the friction bevel gear 42a, and the first front bevel gear 45c formed at the rear end of the transmission sleeve 45a and meshed with the cleaning bevel gear 43a Rear bevel gear 45d;

The second transmission assembly 46 corresponds to the side pinion 44 one-to-one, and includes a rotatable transmission collar 46a sleeved on the corresponding pinion body 44a, formed on the inner wall of the transmission collar 46a and connected to the middle ring groove 44d The second convex ring 46b that can be rotatably matched, the second front bevel gear 46c formed at the front end of the transmission collar 46a and meshing with the cleaning bevel gear 43a, and the second rear bevel gear 46d formed at the rear end of the transmission collar 46a;

The torsion brush body 47 corresponds to the side gear shaft 44 one by one, and includes a brush body rotating shaft 47a, a rotating shaft through hole 47b provided on the brush body rotating shaft 47a to sleeve the gear shaft body 44a, and a rotating shaft through hole 47b disposed on the inner wall of the rotating shaft through hole 47b. The limiting projection 47c inserted into the rear ring groove 44e, the torsion brush body 47 also includes a rotatable auxiliary cleaning roller 47d arranged on the brush body rotating shaft 47a, formed on the lower end of the auxiliary cleaning roller 47d and connected with the first cleaning roller 47d. The movable bevel gear 47e meshed with the two rear bevel gears 46d, and the torsion spring 47f wound around the rear end of the pinion body 44a;

further:

The secondary cleaning roller 47d of the torsion brush body 47 at least includes a secondary roller body made of hard material and a cylindrical bristle layer densely covered on the secondary roller body for cleaning the rail m.

Thanks to the above-mentioned improved technical solution, the rail top m2 of the steel rail m can be cleaned in all directions.

further:

The side gear shaft 44 is also provided with a protective cover, the protective cover covers the entire area except the rotation range of the torsion brush body 47, and provides good protection for the first transmission assembly 45 and the second transmission assembly 46;

Based on the specific embodiment of the above-mentioned ultrasonic detection auxiliary device, the step 1 includes the following steps:

Step 1.1, press in the rail m:

The non-destructive testing vehicle n is placed on the rail m and the auxiliary ultrasonic testing device is aligned with the rail m, and then the auxiliary ultrasonic testing device is pressed down, so that the two brush body assemblies 4 initially surround the steel rail m, and the brush body shell 41 is connected to the rail m. The rail waist m1 of the rail m is flush;

Step 1.2, close to the rail m:

Step 1.2.1, the driving bevel wheel assembly 21 is rotated;

Step 1.2.2, the brush body shell 41 fits the rail m:

The driving bevel wheel assembly 21 drives the left and right lateral movement clamping arms 3 to act synchronously:

The driving bevel gear 21b drives the driven bevel gear 31c, the limit ring groove 31b, and the screw body 31a to rotate, and the screw body 31a drives the corresponding nut body 32a, the lower connecting block 32b, and the clamping arm body 32c to move laterally;

The clamping arm bodies 32c of the two left and right transverse clamping arms 3 move in close proximity, driving the brush body assemblies 4 on the left and right sides to move in close proximity;

The brush body shell 41, the friction roller 42, and the main cleaning roller 43 are close to the rail waist m1;

Step 1.2.3, twist the brush body 47 to fit the rail m:

The upper torsion brush body 47 is squeezed by the rail top m2, and the brush body rotating shaft 47a deflects in a direction deviating from the rail m against the torsion force of the torsion spring 47f and always keeps in contact with the lower slope of the rail top m2;

The lower torsion brush body 47 is pressed by the rail bottom m3, and the brush body rotating shaft 47a deflects the direction deviating from the rail m against the torsion force of the torsion spring 47f and always keeps in contact with the upper slope of the rail bottom m3.

Further, the step 2 includes the following steps:

Step 2.1, the friction roller 42 rotates:

Push the non-destructive testing vehicle n to drive the ultrasonic testing auxiliary device to move forward along the rail m;

The friction roller 42 rotates and walks on the rail waist m1 of the steel rail m;

Step 2.2, clean the rail waist m1:

The friction bevel gear 42a drives the first front bevel gear 45c, the transmission sleeve 45a and the first rear bevel gear 45d to rotate;

The first rear bevel gear 45d drives the cleaning bevel gear 43a and the main cleaning roller 43 to rotate, and the main cleaning roller 43 rotates in a direction opposite to the friction roller 42, and cleans the rail waist m1;

Step 2.3, clean up rail top m2 and rail bottom m3:

The cleaning bevel gear 43a drives the second front bevel gear 46c, the transmission collar 46a and the second rear bevel gear 46d to rotate;

The rotation of the second rear bevel gear 46d drives the movable bevel gear 47e and the auxiliary cleaning roller 47d to rotate;

The auxiliary cleaning roller 47d rotates to clean the rail top m2 or the rail bottom m3.

In the step 1.2.1, the driving bevel wheel assembly 21 is rotated, and the following two embodiments are provided:

Example 1, quick rotation:

The spring stop plate 22d is pressed down to overcome the damping of the compression spring 22e, and the lower locking rod 22b is out of contact with the upper locking block 22b;

Quickly rotate the spring stop plate 22d, the torsion bar body 22c, the axial slider 22a, and the lower locking rod 22b;

The lower locking rod 22b acts on the side insertion hole 21d, thereby driving the driving disc 21a and the driving bevel gear 21b to rotate.

Embodiment 2, precise rotation:

The adjusting device 2 further includes a precision adjusting device 23, and the precise adjusting device 23 includes a driven worm gear 23a that is rotatably arranged on the hollow vertical cylinder 11 above the upper convex ring 11a, and the middle of the driven worm gear 23a is formed with a The worm wheel circular hole through which the torsion bar body 22c is accommodated is provided. The lower end surface of the driven worm wheel 23a is circumferentially evenly distributed with upper locking blocks 23b corresponding to the lower locking rods 22b inserted one by one. The adjusting device 2 also includes A driving worm 23c that penetrates the hollow vertical cylinder 11 in the transverse direction and is engaged with the driven worm wheel 23a, and each end of the driving worm 23c is provided with a handle 23d;

Under normal conditions, the compression spring 22e drives the spring stop 22d, the torsion bar body 22c, the axial slider 22a, and the lower locking rod 22b upward, and the lower locking rod 22b contacts the upper locking block 23b for locking;

Rotating the hand-held handle 23d, the driving worm 23c drives the driven worm gear 23a and the upper locking block 23b to rotate;

And then drive the lower locking rod 22b to rotate;

The lower locking rod 22b acts on the side insertion hole 21d, thereby driving the driving disc 21a and the driving bevel gear 21b to rotate.

As a further embodiment, before step 1, it also includes step 3, pre-adjusting the depression damping of the torsion bar assembly 22:

The adjusting device 2 further includes a damping adjusting device 24, the damping adjusting device 24 includes a rotatable inner threaded barrel 24a sleeved on the torsion bar body 22c, formed on the inner wall of the inner threaded barrel 24a and rotated with the spring baffle 22d. The matching inner ring groove 24b of the cylinder, the central longitudinal cavity 24c longitudinally disposed on the upper half of the torsion bar body 22c, the side longitudinal holes 24d uniformly arranged on the outer circumference of the central longitudinal cavity 24c, and the slidable longitudinal holes 24d in the central longitudinal cavity 24c. The sliding longitudinal rods 24e in the cavity 24c, the threaded inserts 24f disposed at the upper end of the sliding longitudinal rod 24e and passing through the side vertical holes 24d, and the circumferential direction are uniformly distributed at the lower end of the sliding longitudinal rod 24e and pass through the side longitudinal holes. The radial insertion rod 24g is provided in the hole 24d, and the movable retaining ring 24h is slidably arranged on the outer wall of the torsion bar body 22c and connected with the radial insertion rod 24g. Engaging external threads;

The preconditioning method includes the following steps:

Rotate the inner thread barrel 24a;

The internal thread cylinder 24a drives the threaded insert block 24f, the sliding longitudinal rod 24e, the radial insert rod 24g, and the movable retaining ring 24h to move longitudinally;

The movable retaining ring 24h adjusts the compression degree and elastic force of the compression spring 22e in a normal state.

As a further implementation:

The brush body rotating shaft 47a and the limiting protrusion 47c are deflected toward the direction close to the rail m by the torsion force of the torsion spring 47f and abut on the blocking protrusion 44f. In this state, the torsion spring 47f is in a vertical posture.

further:

An upper fixed brush p for cleaning the upper end surface of the rail top m2 is also provided below the clamp arm housing 1 .

Going a step further:

The side of the clamping arm body 32c is also provided with a side fixing brush q for cleaning the side of the rail top m2.

As a further embodiment, in the step 2, the non-destructive testing vehicle n can be driven to reciprocate along the rail m until it is cleaned up, and the non-destructive testing vehicle n is shut down during this process. After cleaning, start the machine and push the non-destructive testing vehicle n again for non-destructive testing.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (8)

1. a crane ultrasonic detection preprocessing method is characterized in that: A crane ultrasonic testing auxiliary device is used, which is arranged in front of the non-destructive testing vehicle (n) to clean the steel rail (m) of the crane cart, including: The clamp arm shell (1) is fixed in front of the non-destructive testing vehicle (n); Two traverse clamping arms (3) are provided, and one traverse clamping arm (3) is slidably provided on the left and right sides of the clamping arm housing (1); There are two brush body assemblies (4), each of which is provided with a brush body assembly (4) on each traverse clamping arm (3); an adjusting device (2), arranged in the clamping arm housing (1), for adjusting the distance between the two laterally moving clamping arms (3); The preprocessing method includes the following steps: Step 1, Align the clamping rails (m): Align the ultrasonic testing auxiliary device with the rail (m), so that the two brush body assemblies (4) are distributed on the left and right sides of the rail; The adjusting device (2) acts to adjust the distance between the two transverse clamping arms (3), that is, the distance between the two brush body assemblies (4), to clamp the rail (m); Step 2, walk along the rail (m) and clean the rail (m): The ultrasonic testing auxiliary device travels with the non-destructive testing vehicle (n), and the brush body assembly (4) cleans the rail (m); The clip arm housing (1) includes: The hollow vertical cylinder (11) is arranged in the longitudinal direction, and the inner wall of the hollow vertical cylinder (11) is respectively provided with an upper convex ring (11a) and a central convex ring (11b) from top to bottom; A horizontal sliding cylinder (12), the left and right sides of the lower end of the hollow vertical cylinder (11) are respectively provided with a horizontal sliding cylinder (12), and each horizontal sliding cylinder (12) is connected with the hollow vertical cylinder (11) There is also a lower limit hole (12a) at the bottom, and a horizontal sliding hole (12b) is also formed at the lower end of each horizontal sliding cylinder (12); The adjusting device (2) includes: The driving bevel wheel assembly (21) includes a rotatable driving disc (21a) arranged between the upper convex ring (11a) and the middle convex ring (11b), and a driving disc (21a) arranged below the driving disc (21a). The bevel gear (21b), the axial slideway (21c) formed on the upper end of the driving disc (21a), the edge-set insertion holes (21d) uniformly distributed on the outer edge of the upper end face of the axial slideway (21c) in the circumferential direction, and provided on the shaft The central circular hole (21e) in the middle of the upper end of the slideway (21c); The torsion bar assembly (22) includes an axial slider (22a) slidably inserted in the axial slideway (21c), circumferentially evenly distributed on the upper end face of the axial slider (22a) and connected to a side socket (21d) One by one inserting the corresponding lower locking rods (22b) and the torsion bar body (22c) provided on the upper end of the axial slider (22a) and passing through the central circular hole (21e), the torsion bar body The upper end of (22c) is arranged through the upper end surface of the hollow vertical cylinder (11), the upper end of the torsion bar body (22c) is also provided with a spring stopper (22d), and the outer wall of the torsion bar body (22c) is located on the spring stopper (22d). ) and the hollow vertical cylinder (11) is also wound with a compression spring (22e); The traverse clamp arm (3) includes: A lead screw assembly (31), comprising a lead screw body (31a) rotatably arranged in the horizontal sliding cylinder (12), formed on the outer wall of the lead screw body (31a) and rotatably matched with the corresponding lower limit hole (12a) The limit ring groove (31b) of the screw rod body (31a), and the driven bevel gear (31c) formed on one end of the screw body (31a) close to the hollow vertical cylinder (11); A nut assembly (32), comprising a nut body (32a) slidably arranged in the horizontal sliding cylinder (12) and engaged with the corresponding screw body (31a), formed under the nut body (32a) and passing through the horizontal a lower connecting block (32b) provided with the sliding hole (12b), and a clamping arm body (32c) arranged below the lower connecting block (32b); The brush body assembly (4) includes: A brush body casing (41) is fixedly connected to the clamping arm body (32c), and a brush roller side window (41a) is provided on the side of the brush body casing (41) close to the rail (m); The friction roller (42) is rotatably arranged in the front half of the side window (41a) of the brush roller. The friction roller shaft is formed on the upper and lower ends of the friction roller (42) respectively and penetrates through the brush body shell (41). There is also a friction bevel gear (42a) on the friction roller shaft; The main cleaning roller (43) is rotatably arranged in the rear half of the side window (41a) of the brush roller, and the upper and lower ends of the main cleaning roller (43) are respectively formed with cleaning rollers penetrating the brush body shell (41). shaft, and each cleaning roller shaft is also provided with a cleaning bevel gear (43a); There are two side gear shafts (44), one on the upper and lower ends of the brush body shell (41), respectively, including a gear shaft body (44a), the front and rear ends of the gear shaft body (44a) passing through The connecting longitudinal rod (44b) is connected with the brush body casing (41), and the gear shaft body (44a) is sequentially provided with a front ring groove (44c), a middle ring groove (44d) and a rear ring groove from front to back (44e), a blocking projection (44f) is provided in the rear ring groove (44e); The first transmission assembly (45), corresponding to the side gear shafts (44) one-to-one, comprises a transmission sleeve (45a) rotatably sleeved on the corresponding gear shaft body (44a), formed on the transmission sleeve (45a). 45a) The first convex ring (45b) on the inner wall and rotatably matched with the front ring groove (44c), the first front bevel gear (45c) formed on the front end of the transmission sleeve (45a) and meshing with the friction bevel gear (42a) ), a first rear bevel gear (45d) formed at the rear end of the transmission sleeve (45a) and meshed with the cleaning bevel gear (43a); The second transmission assembly (46), corresponding to the side gear shafts (44) one-to-one, includes a transmission collar (46a) rotatably sleeved on the corresponding gear shaft body (44a), a transmission collar (46a) formed on the transmission collar ( 46a) The second convex ring (46b) on the inner wall and rotatably matched with the central ring groove (44d), the second front bevel gear (46c) formed on the front end of the transmission collar (46a) and meshing with the cleaning bevel gear (43a) ), the second rear bevel gear (46d) formed at the rear end of the transmission collar (46a); The twisting brush body (47) corresponds to the side gear shafts (44) one by one, and includes a brush body rotating shaft (47a), a rotating shaft through hole provided on the brush body rotating shaft (47a) for sleeved with the gear shaft body (44a) (47b), a limiting projection (47c) provided on the inner wall of the through hole (47b) of the rotating shaft and inserted into the rear ring groove (44e), the torsional brush body (47) also includes a rotatable rotating shaft provided on the brush body The auxiliary cleaning roller (47d) on (47a), the movable bevel gear (47e) which is formed on the lower end of the auxiliary cleaning roller (47d) and meshes with the second rear bevel gear (46d), is wound around the pinion body (44a) Torsion spring (47f) at rear end; The step 1, aligning the clamping rail (m), specifically includes the following steps: Step 1.1, press into the rail (m): Place the non-destructive testing vehicle (n) on the rail (m) and make the auxiliary ultrasonic testing device align with the rail (m), and then press down the auxiliary ultrasonic testing device, so that the two brush assemblies (4) align the rail (m) initially. surrounded, and the brush body shell (41) is flush with the rail waist (m1) of the rail (m); Step 1.2, close to the rail (m): Step 1.2.1, the driving bevel wheel assembly (21) is rotated; Step 1.2.2, the brush body shell (41) fits the rail (m): The drive bevel wheel assembly (21) drives the left and right lateral movement clamping arms (3) to act synchronously: The driving bevel gear (21b) drives the driven bevel gear (31c), the limiting ring groove (31b) and the screw body (31a) to rotate, and the screw body (31a) drives the corresponding nut bodies (32a), The lower connecting block (32b) and the clamping arm body (32c) move laterally; The clamping arm bodies (32c) of the left and right lateral shifting clamping arms (3) move in close proximity, driving the brush body assemblies (4) on the left and right sides to move in close proximity; The brush body shell (41), the friction roller (42), and the main cleaning roller (43) are in close contact with the rail waist (m1); Step 1.2.3, twist the brush body (47) to fit the rail (m): The upper torsion brush body (47) is pressed by the rail top (m2), and the brush body rotating shaft (47a) deflects in the direction deviating from the rail (m) against the torsion force of the torsion spring (47f) and always keeps in contact with the rail top (47f). The lower slope of m2) is fitted; The torsion brush body (47) located below is pressed by the rail bottom (m3), and the brush body rotating shaft (47a) deflects in the direction deviating from the rail (m) against the torsion force of the torsion spring (47f) and always remains in contact with the rail bottom (m3). m3) on the upper slope of the fit. 2. a kind of crane ultrasonic detection preprocessing method according to claim 1 is characterized in that: The step 2, walking along the rail (m) and cleaning the rail (m), specifically includes the following steps: Step 2.1, the friction roller (42) rotates: Push the non-destructive testing vehicle (n) to drive the ultrasonic testing auxiliary device to move forward along the rail (m); The friction roller (42) rotates and walks on the rail waist (m1) of the steel rail (m); Step 2.2, clean the rail waist (m1): The friction bevel gear (42a) drives the first front bevel gear (45c), the transmission sleeve (45a) and the first rear bevel gear (45d) to rotate; The first rear bevel gear (45d) drives the cleaning bevel gear (43a) and the main cleaning roller (43) to rotate, and the main cleaning roller (43) rotates in the opposite direction to the friction roller (42), and Clean the rail waist (m1); Step 2.3, clean up the rail top (m2) and rail bottom (m3): The cleaning bevel gear (43a) drives the second front bevel gear (46c), the transmission collar (46a) and the second rear bevel gear (46d) to rotate; The rotation of the second rear bevel gear (46d) drives the movable bevel gear (47e) and the auxiliary cleaning roller (47d) to rotate; The auxiliary cleaning roller (47d) rotates to clean the rail top (m2) or rail bottom (m3). 3. a kind of crane ultrasonic detection preprocessing method according to claim 2 is characterized in that: The step 1.2.1, the rotation of the driving bevel wheel assembly (21), specifically includes the following steps: The spring stop plate (22d) is pressed down to overcome the damping of the compression spring (22e) to descend downward, and the lower locking rod (22b) is out of contact with the upper locking block (23b); Quickly rotate the spring stop plate (22d), the torsion bar body (22c), the axial slider (22a), and the lower locking rod (22b); The lower locking rod (22b) acts on the side insertion hole (21d), thereby driving the driving disc (21a) and the driving bevel gear (21b) to rotate. 4. a kind of crane ultrasonic detection preprocessing method according to claim 2 is characterized in that: The adjusting device (2) further includes a precision adjusting device (23), and the precise adjusting device (23) includes a driven worm gear (23) that is rotatably arranged on the hollow vertical cylinder (11) above the upper convex ring (11a). 23a), the middle part of the driven worm gear (23a) is formed with a worm gear circular hole through which the torsion bar body (22c) is accommodated, and the lower end surface of the driven worm gear (23a) is circumferentially evenly distributed with the lower locking rod (22b). ) to insert the corresponding upper locking blocks (23b) one by one, and the adjusting device (2) also includes a driving worm (23c) that penetrates the hollow vertical cylinder (11) in the transverse direction and is engaged with the driven worm gear (23a), so The two ends of the driving worm (23c) are respectively provided with a hand-held handle (23d); The step 1.2.1, the rotation of the driving bevel wheel assembly (21), specifically includes the following steps: Under normal conditions, the compression spring (22e) drives the spring stop plate (22d), the torsion bar body (22c), the axial slider (22a), and the lower locking rod (22b) upward, and the lower locking rod (22b) moves upward. ) is in contact with the upper locking block (23b) to lock; Rotating the hand-held handle (23d), the driving worm (23c) drives the driven worm gear (23a) and the upper locking block (23b) to rotate; and then drive the lower locking lever (22b) to rotate; The lower locking rod (22b) acts on the side insertion hole (21d), thereby driving the driving disc (21a) and the driving bevel gear (21b) to rotate. 5. a kind of crane ultrasonic detection preprocessing method according to claim 3 or 4 is characterized in that: The adjusting device (2) further comprises a damping adjusting device (24), and the damping adjusting device (24) comprises a rotatable internal thread cylinder (24a) sleeved on the torsion bar body (22c), formed on the internal thread The inner wall of the cylinder (24a) and the ring groove (24b) in the cylinder, which is rotatably matched with the spring baffle plate (22d), and the central longitudinal cavity (24c) longitudinally arranged in the upper half of the torsion bar body (22c), are evenly distributed in the center A side vertical hole (24d) on the outer periphery of the vertical cavity (24c), a sliding vertical rod (24e) slidably arranged in the central vertical cavity (24c), and circumferentially evenly distributed on the upper end of the sliding vertical rod (24e) and Threaded inserts (24f) arranged through the side vertical holes (24d), radial inserts (24g) arranged circumferentially evenly at the lower ends of the sliding vertical rods (24e) and arranged through the side vertical holes (24d), A movable retaining ring (24h) slidably arranged on the outer wall of the torsion bar body (22c) and connected to the radial insertion rod (24g), the distal end of the threaded insertion block (24f) is formed with an inner thread cylinder (24a) Engaging external threads; Before step 1, it also includes step 3, pre-adjusting the depression damping of the torsion bar assembly (22): Rotate the inner thread barrel (24a); The inner thread cylinder (24a) drives the threaded insert block (24f), the sliding longitudinal rod (24e), the radial insert rod (24g), and the movable retaining ring (24h) to move longitudinally; The movable retaining ring (24h) adjusts the compression degree and elastic force of the compression spring (22e) in a normal state. 6. a kind of crane ultrasonic detection preprocessing method according to claim 5 is characterized in that: The brush body rotating shaft (47a) and the limiting projection (47c) are deflected towards the direction close to the rail (m) by the torsion force of the torsion spring (47f) and abut against the stop projection (44f), in this state the torsion The spring (47f) assumes a vertical attitude. 7. a kind of crane ultrasonic detection preprocessing method according to claim 6 is characterized in that: An upper fixed brush (p) for cleaning the upper end face of the rail top (m2) is also arranged below the clamp arm housing (1). 8. a kind of crane ultrasonic detection preprocessing method according to claim 7 is characterized in that: A side fixing brush (q) for cleaning the side surface of the rail top (m2) is also provided on the side surface of the clamping arm body (32c).

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