A water tank for ultrasonic nondestructive testing device of railway vehicle wheels

Abstract

The utility model discloses a water tank for a rail vehicle wheel ultrasonic nondestructive testing device, comprising a water tank body, a mounting bracket is arranged at the bottom of the water tank body, and a wheel rotation unit for supporting the wheel is fixed on the mounting bracket; the bottom and side walls of the water tank body are both provided with connection holes, the mounting bracket and the rear end of the wheel rotation unit are provided with screw holes, bolts pass through the connection holes and are threadedly matched with the screw holes so that the rear end of the mounting bracket and the wheel rotation unit are respectively fixedly connected to the bottom and side walls of the water tank body; the diameter of the mounting hole is larger than the diameter of the bolt rod and smaller than the diameter of the bolt head; an O-type sealing ring I is installed on the end face of the bolt head I matched with the screw hole on the mounting bracket and the water tank body; an O-type sealing ring II is installed on the end face of the wheel rotation unit rear end and the water tank body, and the screw hole at the rear end of the wheel rotation unit is located within the inner ring range of the O-type sealing ring II. The utility model facilitates positioning and connection on the basis of achieving sealing.

Description

Technical Field

[0001] The utility model relates to a water tank, in particular to a water tank used for flaw detection of wheels of rail vehicles. Background Art

[0002] The non-destructive testing equipment for rail vehicle wheels uses an ultrasonic probe to perform ultrasonic testing on the wheels to be tested. It is necessary to cover coupling water between the probe and the object to be tested to test the rim, spoke, and hub of the wheel separately.

[0003] During the inspection, the wheel is placed in a water tank, the water in the water tank submerges the lower rim of the wheel, and the ultrasonic probe is placed near the underwater rim to perform ultrasonic inspection on the rim. In order to support the wheel, a wheel rotation unit needs to be installed in the water tank, and the wheel rotation bracket is connected to the water tank with bolts. Not only does the bolt need to be accurately positioned between the bolt and the water tank, but it also needs to be sealed to prevent the coupling water in the water tank from leaking. However, the existing water tank is generally made of steel plate sheet metal welding, with low processing accuracy, and it is difficult to achieve accurate positioning of the positioning holes. Utility Model Content

[0004] In view of this, the utility model provides a water tank for a rail vehicle wheel ultrasonic nondestructive testing device, which is convenient for positioning and connection on the basis of achieving sealing.

[0005] In order to solve the above technical problems, the technical solution of the utility model is to adopt a water tank for a rail vehicle wheel ultrasonic non-destructive testing device, including a water tank body, a mounting bracket is arranged at the bottom of the water tank body, and a wheel rotation unit for supporting the wheel is fixed on the mounting bracket; the bottom and side walls of the water tank body are both provided with connecting holes, and the tail ends of the mounting bracket and the wheel rotation unit are provided with screw holes, and bolts pass through the connecting holes and cooperate with the screw holes so that the tail ends of the mounting bracket and the wheel rotation unit are fixedly connected to the bottom and side walls of the water tank body respectively; the diameter of the mounting hole is larger than the diameter of the bolt rod and smaller than the diameter of the bolt head; an O-ring I is installed on the end face of the bolt head that fits with the screw hole on the mounting bracket and the water tank body; an O-ring II is installed on the end face of the wheel rotation unit that fits with the water tank body, and the screw hole at the tail end of the wheel rotation unit is located within the inner circle of the O-ring II.

[0006] As an improvement, an annular mounting groove I is provided on the end surface where the head of the bolt I is in contact with the water tank body, and the O-shaped sealing ring I is embedded in the mounting groove I.

[0007] As a further improvement, an annular mounting groove II is provided on the end surface where the rear end of the wheel rotating unit is in contact with the water tank body, and the O-ring II is embedded in the mounting groove II.

[0008] As another further improvement, the diameter of the mounting hole is 1-2 mm larger than the screw hole that is matched with it.

[0009] As an improvement, the water tank body is composed of a bottom plate and four side walls, front, rear, left and right; wherein the front and rear side walls are rectangles of different heights, and the left and right side plates are trapezoidal, so that the opening of the water tank body is an inclined surface.

[0010] As an improvement, the mounting bracket includes a mounting base plate, on which two support beams parallel to the axis of the water tank are fixed, and the wheel rotation unit is fixed on the support beams.

[0011] As an improvement, the rotating shaft of the wheel rotating unit extends out of the side wall of the water tank body through a through hole opened on the side wall of the water tank body, and the through hole is located within the inner ring range of the O-ring II.

[0012] As an improvement, the screw holes at the rear end of the wheel rotating unit are evenly arranged on the circumference along the rotating shaft.

[0013] The utility model is beneficial in that:

[0014] The water tank for the ultrasonic nondestructive testing device for rail vehicle wheels having the above structure has a connection hole for connecting with the mounting bracket and the wheel rotation unit that is larger than the diameter of the bolt rod, generally 1 to 2 mm, so that it can be installed even if the positioning is slightly deflected. In addition, in order to avoid leakage, an O-type sealing ring I is provided on the end face of the bolt head, and an O-type sealing ring II is provided on the end face of the rear end of the wheel rotation unit. The sealing ring is fitted with the water tank body to achieve the purpose of sealing, thereby avoiding coupling water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model.

[0016] Figure 2 It is a three-dimensional diagram from another perspective of the utility model.

[0017] Figure 3 It is a top view of the utility model.

[0018] Figure 4 for Figure 3 AA section view.

[0019] Figure 5 This is an enlarged view of point I.

[0020] Figure 6 This is an enlarged view of point II.

[0021] Markings in the figure: 1 installation base plate, 2 water tank body, 3 O-ring I, 4 gap I, 5 bolt I, 6 wheel rotation unit, 7 O-ring I, 9 bolt II, 10 gap II, 11 support beam. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0023] like Figure 1 , Figure 2 As shown, the utility model provides a water tank for a rail vehicle wheel ultrasonic non-destructive testing device, comprising a water tank body 2, wherein a mounting bracket is arranged at the bottom of the water tank body 2, and a wheel rotation unit 6 for supporting the wheel is fixed on the mounting bracket; the bottom and side walls of the water tank body 2 are both provided with connecting holes, and the tail ends of the mounting bracket and the wheel rotation unit 6 are provided with screw holes, and bolts pass through the connecting holes and are threadedly matched with the screw holes so that the tail ends of the mounting bracket and the wheel rotation unit 6 are respectively fixedly connected to the bottom and side walls of the water tank body 2; the diameter of the mounting hole is larger than the diameter of the bolt rod and smaller than the diameter of the bolt head, that is, there is a gap I4 between the mounting hole and the bolt I5, and there is a gap II10 between the mounting hole and the bolt II9; an O-type sealing ring I3 is installed on the end face of the bolt I5 head matched with the screw hole on the mounting bracket that fits with the water tank body 2; an O-type sealing ring II7 is installed on the end face of the wheel rotation unit 6 that fits with the water tank body 2, and the screw hole at the tail end of the wheel rotation unit 6 is located within the inner circle of the O-type sealing ring II7.

[0024] The principle of the utility model is that the connection hole on the water tank body 2 for connecting with the mounting bracket and the wheel rotating unit 6 is larger than the diameter of the bolt rod, generally 1-2 mm is appropriate, so that it can be installed even if the positioning is slightly deflected. In addition, in order to avoid leakage, an O-type sealing ring I3 is provided on the end face of the head of the bolt I5, and an O-type sealing ring II7 is provided on the end face of the tail end of the wheel rotating unit 6. The sealing ring is fitted with the water tank body 2 to achieve the purpose of sealing, thereby avoiding coupling water leakage.

[0025] In this embodiment, an annular mounting groove I is formed on the end surface where the head of the bolt I5 is in contact with the water tank body 2, and the O-type sealing ring I is embedded in the mounting groove I. An annular mounting groove II is formed on the end surface where the tail end of the wheel rotating unit 6 is in contact with the water tank body 2, and the O-type sealing ring II7 is embedded in the mounting groove II. The mounting groove facilitates the installation and positioning of the O-type sealing ring.

[0026] Since the rotating wheel on the wheel rotating unit 6 needs to be driven by power, the rotating shaft of the wheel rotating unit 6 extends out of the side wall of the water tank body 2 through the through hole opened on the side wall of the water tank body 2. In order to avoid leakage points at the through hole, the through hole is located within the inner ring range of the O-ring II7. The O-ring II7 forms a seal to prevent leakage. In order to make the O-ring II7 evenly stressed throughout the circumference to achieve a better sealing effect, there are multiple screw holes at the rear end of the wheel rotating unit 6 and they are evenly arranged on the circumference along the rotating shaft. Of course, it can be foreseen that there are also multiple bolts II9 used to cooperate with the screw holes.

[0027] In addition, the water tank body 2 in this embodiment is composed of a bottom plate and four side walls, front, rear, left and right; wherein the front and rear side walls are rectangular with different heights, and the left and right side plates are trapezoidal, so that the opening of the water tank body 2 is an inclined surface. The water tank is installed on an inclined base, and the opening of the water tank is inclined in the opposite direction to the base, so that after the water tank is installed, its opening is exactly horizontal.

[0028] The mounting bracket includes a mounting base plate 1, on which two support beams 11 parallel to the axis of the water tank are fixed. The wheel rotating unit 6 is fixed to the two support beams arranged side by side by bolts, which is convenient for loading, unloading and positioning.

[0029] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A water tank for a rail vehicle wheel ultrasonic nondestructive testing device, characterized in that: It comprises a water tank body, wherein a mounting bracket is arranged at the bottom of the water tank body, and a wheel rotating unit for supporting the wheel is fixed on the mounting bracket; connecting holes are provided at the bottom and side walls of the water tank body, and screw holes are provided at the rear ends of the mounting bracket and the wheel rotating unit, and bolts pass through the connecting holes and cooperate with the screw holes so that the rear ends of the mounting bracket and the wheel rotating unit are respectively fixedly connected to the bottom and side walls of the water tank body; the diameter of the connecting hole is larger than the diameter of the bolt rod and smaller than the diameter of the bolt head; an O-ring I is installed on the end face of the head of the bolt I which cooperates with the screw hole on the mounting bracket and fits with the water tank body; an O-ring II is installed on the end face of the rear end of the wheel rotating unit which fits with the water tank body, and the screw hole at the rear end of the wheel rotating unit is located within the inner circle of the O-ring II.

2. A water tank for a rail vehicle wheel ultrasonic nondestructive testing device according to claim 1, characterized in that: An annular mounting groove I is provided on the end surface where the head of the bolt I is in contact with the water tank body, and the O-shaped sealing ring I is embedded in the mounting groove I.

3. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 1, characterized in that: An annular mounting groove II is provided on the end surface where the rear end of the wheel rotating unit is in contact with the water tank body, and the O-type sealing ring II is embedded in the mounting groove II.

4. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 1, characterized in that: The diameter of the connecting hole is 1-2 mm larger than the screw hole that cooperates with it.

5. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 1, characterized in that: The water tank body is composed of a bottom plate and four side walls, front, rear, left and right; wherein the front and rear side walls are rectangles with different heights, and the left and right side plates are trapezoidal, so that the opening of the water tank body is an inclined surface.

6. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 1, characterized in that: The mounting bracket comprises a mounting base plate, two support beams parallel to the axis of the water tank are fixed on the mounting base plate, and the wheel rotating unit is fixed on the support beams.

7. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 1, characterized in that: The rotating shaft of the wheel rotating unit extends out of the side wall of the water tank body through a through hole opened on the side wall of the water tank body, and the through hole is located within the inner ring range of the O-ring II.

8. The water tank for the ultrasonic nondestructive testing device for railway vehicle wheels according to claim 7, characterized in that: The screw holes at the rear end of the wheel rotating unit are evenly arranged on the circumference along the rotating shaft.

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