Lifting device for wheel online flaw detection module

Abstract

The invention relates to the field of rail train maintenance, in particular to a lifting device for a wheel online flaw detection module, which comprises a rotating shaft mounting seat, a rotating shaft, a pushing plate, a swing arm frame and a driving mechanism, the rotating shaft is rotationally mounted on the rotating shaft mounting seat; the pushing plate and the swing arm frame are connected with the rotating shaft and can synchronously rotate along with the rotating shaft; the driving mechanism is hinged to one end of the pushing plate; the driving mechanism drives the rotating shaft to rotate through the pushing plate; one end of the swing arm frame is arranged close to the track and is driven by the rotating shaft to ascend and descend; and the flaw detection module is arranged on the end part. The driving mechanism is used as a power mechanism to drive the rotating shaft to rotate, so that the swing arm frame can rotate by taking the rotating shaft as the center, and the flaw detection module mounted on the swing arm frame can be lifted. The lifting device is simple in overall structure and reliable in operation, is not easily influenced by broken stones, gravels or rainwater and the like, and can ensure normal lifting of the flaw detection module.

Description

Technical Field

[0001] The present invention relates to the field of maintenance of rail trains, and particularly to a lifting device for an on-line wheel flaw detection module. Background Art

[0002] After long-term operation of the train, internal damage is inevitable in the wheels, which poses a great potential safety hazard to the train operation. Therefore, ultrasonic probes are required to detect the wheels. To improve the detection efficiency, a probe array is installed on the train storage line, and detection is carried out in an on-line manner, which can greatly improve the detection efficiency and reduce the manual labor intensity.

[0003] However, the speed of the train entering the storage needs to be restricted to a certain extent, because too high a speed will affect the coupling between the probe and the wheel, resulting in poor ultrasonic detection data; at the same time, it will also exacerbate the wear of the probe and cause a relatively large impact on the probe, affecting the service life of the probe. At the same time, the speed of the train leaving the storage is much higher than that of entering the storage, and the impact of the wheel on the probe is very large, which is completely fatal to the probe. Therefore, in order to extend the service life of the probe, it is necessary to lift the probe in the two cases of the train entering the storage at high speed and leaving the storage to ensure that it does not contact the wheel, so as to meet the condition of extending the service life of the probe.

[0004] The existing solution is to use a steel wire or a chain to pull the probe. A pull plate with many frames is used to hold the probe column, and a chain or a steel wire is used to pull it below. Since the space below is limited after the probe module is installed, the chain needs to change direction and is pulled outside. In this way, there are sprockets or bearings. The on-site environment is relatively harsh, with oil, sludge, sand, etc. After a long time, the sprockets or bearings are stuck, making the chain unable to move and the lifting function unable to be used.

[0005] Another one is to install a slide rail on the probe module to move up and down. The bottom is pushed back and forth by an actuator with an inclined block to make the module move up and down. Similarly, it gets stuck and cannot work after encountering mud and dirt. Summary of the Invention

[0006] In view of this, the present invention provides a lifting device for an on-line wheel flaw detection module, aiming to ensure that the probe can be lifted and lowered normally in a harsh environment.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0008] A lifting device for an on-line wheel flaw detection module, comprising a rotating shaft mounting seat, a rotating shaft, a pushing plate, a swing arm frame and a driving mechanism; the rotating shaft is rotatably mounted on the rotating shaft mounting seat; the pushing plate and the swing arm frame are both connected to the rotating shaft and can rotate synchronously with the rotating shaft; the driving mechanism is hinged to one end of the pushing plate; the driving mechanism drives the rotating shaft to rotate through the pushing plate; one end of the swing arm frame is arranged close to the track, and under the drive of the rotating shaft, this end part performs a lifting motion; the flaw detection module is mounted on this end part.

[0009] In some alternative embodiments, the whole lifting device is mounted on the outer side of the track.

[0010] In some alternative embodiments, the rotating shaft mounting seat, the rotating shaft, the pushing plate and the driving mechanism are all arranged on the inner side of the track, and the swing arm frame extends from the inner side of the track along the bottom of the track to the outer side of the track.

[0011] In some alternative embodiments, it further comprises a rail clamping seat and a fastener; the fastener is mounted on the rail clamping seat, and after the combination of the fastener and the rail clamping seat, it is used to connect with the track; the rotating shaft mounting seat is mounted on the rail clamping seat.

[0012] In some alternative embodiments, the rail clamping seat has a rail clamp; the fastener has a clamping part; the clamping part and the rail clamp are respectively clamped on the inner and outer sides of the track.

[0013] In some alternative embodiments, it further comprises a supporting plate and a jacking elastic member; the supporting plate is mounted on the end part of the swing arm frame located on the outer side of the track, and the flaw detection module is mounted on this supporting plate; the jacking elastic member is arranged between the supporting plate and the rail clamping seat and at least provides an upward thrust to the supporting plate.

[0014] In some alternative embodiments, the fastener has a first limiting member with an adjustable position; the first limiting member is used to limit the amplitude when the swing arm frame rotates upward.

[0015] In some alternative embodiments, it further comprises a support and a second limiting member; the support is mounted on the rail clamping seat; the second limiting member is arranged on the support with an adjustable position, and the second limiting member is used to limit the amplitude when the swing arm frame rotates downward.

[0016] In some alternative embodiments, it further comprises a damper mounting seat and a damper; the damper mounting seat is mounted on the rotating shaft mounting seat; the damper is hinged between the damper mounting seat and the pushing plate.

[0017] In some alternative embodiments, a pushing elastic member is further included. The pushing elastic member is disposed on the driving mechanism and provides at least a pushing force to the moving parts of the driving mechanism.

[0018] In summary, compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention uses a driving mechanism as a power mechanism to drive the rotation of a rotating shaft, so that the swing arm can rotate around the rotating shaft to realize the lifting of the flaw detection module installed on the swing arm. The overall structure of the present invention is simple, runs reliably, is not easily affected by gravel, sand or rain, etc., and can ensure the normal lifting of the flaw detection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional assembly structure diagram between the present invention and the track.

[0020] Figure 2 It is a front view assembly structure diagram between the present invention and the track.

[0021] Figure 3 It is a three-dimensional structure diagram of the present invention.

[0022] Figure 4 It is a front view structure diagram of the present invention.

[0023] Figure 5 It is Figure 3 A structure diagram of the structure shown after omitting the swing arm, the jacking elastic member and the support plate.

[0024] Figure 6 It mainly shows the assembly structure of the rail seat and the fastener.

[0025] Figure 7 It mainly shows the assembly structure between the damper, the pushing plate, the rotating shaft and the driving mechanism.

[0026] Figure 8 It is Figure 7 A cross-sectional structure diagram of the structure shown.

[0027] The meanings of the reference numerals in the figure are as follows: flaw detection module 1, track 2, rail seat 3, rail clip 4, fastener 5, clamping portion 6, limiting portion 7, fastening bolt 8, first limiting member 9, rotating shaft mounting seat 10, rotating shaft 11, gasket 12, jacking bolt 13, cylinder mounting seat 14, driving mechanism 15, ear seat 16, trunnion 17, sleeve 18, pushing elastic member 19, damper mounting seat 20, damper 21, pushing plate 22, swing arm 23, jacking elastic member 24, support plate 25, support 26, second limiting member 27. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0029] In the description of the present invention, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there are descriptions of similar terms such as first, second, etc., they are only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0032] As Figure 3 and Figure 4 shown, a lifting device for a wheel on-line flaw detection module according to the present invention mainly includes a rotating shaft mounting seat 10, a rotating shaft 11, a pushing plate 22, a swing arm frame 23 and a driving mechanism 15. For the convenience of description, a Figure 3 spatial rectangular coordinate system shown in is introduced to explain the related structure of the present invention. Among them, the positive direction of the X-axis is to the right (i.e., pointing to the outside of the track 2), the positive direction of the Y-axis is forward, and the positive direction of the Z-axis is upward.

[0033] As Figure 7 and Figure 8 shown, the rotating shaft 11 is rotatably mounted on the rotating shaft mounting seat 10. Preferably, the rotation center of the rotating shaft 11 is arranged parallel to the length direction of the track 2. The pushing plate 22 is connected to the rotating shaft 11 and can rotate synchronously with the rotating shaft 11.

[0034] At the same time, as Figure 3 and Figure 4 shown, the swing arm frame 23 is also connected to the rotating shaft 11 and can rotate synchronously with the rotating shaft 11.

[0035] As Figure 7 and Figure 8 ​As shown, the driving mechanism 15 is hinged to one end of the push plate 22. The driving mechanism 15 drives the rotating shaft 11 to rotate through the push plate 22, thereby further causing the push plate 22 and the swing arm frame 23 to rotate around the rotating shaft 11.

[0036] As Figure 3 and Figure 4 shown, one end of the swing arm frame 23 is close to the track 2, and this end part performs a lifting motion driven by the rotating shaft 11. The flaw detection module 1 is installed on this end part.

[0037] The present invention can be integrally installed outside the track 2, or part of it can be located inside the track 2 and part outside the track 2, and the flaw detection module 1 is installed on the part located outside the track 2 to realize the detection of the wheel. The present invention uses the driving mechanism 15 as the power mechanism to drive the rotating shaft 11 to rotate, so that the swing arm frame 23 can rotate around the rotating shaft 11 to realize the lifting of the flaw detection module 1 installed on the swing arm frame 23. The overall structure of the present invention is simple, runs reliably, is not easily affected by gravel, sand or rain, etc., and can ensure the normal lifting of the flaw detection module 1.

[0038] As described above, the present invention can be partially located inside the track 2 and partially outside the track 2. As an alternative embodiment, as Figure 1 and Figure 2 shown, the rotating shaft mounting seat 10, the rotating shaft 11, the push plate 22 and the driving mechanism 15 can be arranged inside the track 2, and the swing arm frame 23 extends from the inside of the track 2 along the bottom of the track 2 to the outside of the track 2.

[0039] Specifically, the rotating shaft mounting seat 10 is fixedly arranged.

[0040] The rotating shaft 11 can be rotatably mounted on the rotating shaft mounting seat 10 through, for example, bearings.

[0041] The push plate 22 is sleeved on the rotating shaft 11 and has no relative motion relationship with the rotating shaft 11, that is, the push plate 22 rotates synchronously with the rotating shaft 11.

[0042] As Figure 7 shown, the driving mechanism 15 can be a cylinder, an electric cylinder or a hydraulic cylinder. An ear seat 16 is connected to the driving mechanism 15, and a trunnion 17 is provided on the ear seat 16. A cylinder mounting seat 14 is connected to the left side of the rotating shaft mounting seat 10, and the driving mechanism 15 is rotatably mounted on the cylinder mounting seat 14 through the trunnion 17 of the ear seat 16, so that the driving mechanism 15 can rotate around the trunnion 17. The movable part of the driving mechanism 15, such as the piston rod, is hinged to the left end (or lower end) of the push plate 22. When the movable part of the driving mechanism 15 performs, for example, a telescopic motion, it will drive the push plate 22 to rotate around the rotating shaft 11, and at the same time the rotating shaft 11 will rotate accordingly.

[0043] As Figure 3 and Figure 4 shown, the left part of the swing arm 23 is located inside the track 2, the right part of the swing arm 23 is located outside the track 2, and the middle part of the swing arm 23 is located below the track 2.

[0044] The advantage of such a design is that most of the entire device can be located inside the track 2, and only a small part is located outside the track 2, thereby reducing the impact on the outside of the track 2. For example, maintenance personnel and certain detection equipment need to operate inside the track 2, and such a design can reduce the impact on the operation.

[0045] The rotating shaft mounting seat 10 can be installed on the sleeper or the roadbed inside the track 2 by, for example, bolts. As an alternative embodiment, as Figure 5 shown, the rotating shaft mounting seat 10 can be installed on the track 2 through a combined buckle formed by the rail clamp seat 3 and the fastener 5.

[0046] As Figure 6 shown, the fastener 5 is installed on the rail clamp seat 3, and the fastener 5 and the rail clamp seat 3 are combined to be connected to the track 2. For example, the rail clamp seat 3 extends from the inside of the track 2 along the bottom of the track 2 to the outside of the track 2, and a rail clip 4 is provided on the part of the rail clamp seat 3 located outside the track 2 to be clamped to the outside of the track 2; the fastener 5 is located inside the track 2, and a clamping portion 6 is provided on the upper part of the fastener 5 to be clamped to the inside of the track 2. The rotating shaft mounting seat 10 can be installed on the rail clamp seat 3 by, for example, bolts.

[0047] Installing the rotating shaft mounting seat 10 on the track 2 through the combined buckle can avoid construction on the sleeper or the roadbed. At the same time, it is also beneficial to the disassembly and assembly of the present invention.

[0048] For easy disassembly and assembly, the connection between the fastener 5 and the rail clamp seat 3 can be a detachable connection method. For example, the fastener 5 and the rail clamp seat 3 can be connected through a fastening bolt 8. At the same time, the distance between the rail clip 4 and the clamping portion 6 can also be adjusted through the fastening bolt 8 to loosen or tighten the clamping degree of the track 2.

[0049] The lower part of the fastener 5 has a limiting portion 7 to be clamped to the bottom of the rail clamp seat 3. The limiting portion 7 can prevent the rail clamp seat 3 from bending and deforming, resulting in loosening of the track 2, so that the rail clip 4 and the clamping portion 6 can always maintain a good clamping effect on the track 2.

[0050] To adapt to the heights of different tracks 2, several shims 12 can be additionally installed between the rotating shaft mounting base 10 and the rail clamping seat 3 to adjust the height of the rotating shaft mounting base 10, so that the position of the rotating shaft 11 can be adjusted within a certain height range. Correspondingly, the right end of the swing arm 23 has different lifting ranges at the same rotation angle, so that the lifting range of the flaw detection module 1 installed on the swing arm 23 is more flexible.

[0051] To facilitate the removal of the rotating shaft mounting base 10 from the rail clamping seat 3, several threaded through holes can be opened on the rotating shaft mounting base 10, and jacking bolts 13 are screwed into the threaded through holes. When the jacking bolts 13 are turned to move downward, the lower ends of the jacking bolts 13 will lift the rotating shaft mounting base 10 in the reverse direction after contacting the rail clamping seat 3, making the removal of the rotating shaft mounting base 10 more labor-saving and convenient.

[0052] As Figure 3 and Figure 4 shown, a support plate 25 can be installed on the right end of the swing arm 23 to facilitate the installation of the flaw detection module 1. At the same time, a jacking elastic member 24, such as a spring, can also be installed between the support plate 25 and the rail clamping seat 3 to provide an upward thrust to the support plate 25, making it easier for the flaw detection module 1 to be lifted upward.

[0053] The lifting range of the flaw detection module 1 must be within a preset range, otherwise it may touch the wheel or sleeper / ballast to be detected. As an optional implementation manner, as Figure 4 and Figure 6 shown, a first limit member 9 with an adjustable position can be installed on the fastener 5, for example, a bolt screwed onto the fastener 5. The first limit member 9 is used to limit the amplitude when the swing arm 23 rotates upward. Adjusting the height of the first limit member 9 can change the upper limit amplitude value when the swing arm 23 rotates.

[0054] As Figure 3 and Figure 4 shown, a support 26 can also be installed at the left end of the rail clamping seat 3, and a second limit member 27 with an adjustable position is installed on the support 26, for example, a bolt screwed onto the support 26. The second limit member 27 is used to limit the amplitude when the swing arm 23 rotates downward. Adjusting the left-right position of the second limit member 27 can change the lower limit amplitude value when the swing arm 23 rotates.

[0055] The flaw detection module 1 is an important device, and the impact on it should be reduced. As Figure 3 、 Figure 4 and Figure 7As shown, the present invention may further include a damper mounting seat 20 and a damper 21. The damper mounting seat 20 is mounted on the top of the rotating shaft mounting seat 10, and the damper 21 is hinged between the damper mounting seat 20 and the push plate 22. The damper 21 has an obstructive effect on the rotation of the push plate 22, slowing down its rotation speed, thereby avoiding the too-fast lifting and lowering of the flaw detection module 1, and further reducing the impact on it.

[0056] As an alternative embodiment, as Figure 8 shown, a pushing elastic member 19 may be further provided on the movable part of the driving mechanism 15 to provide a thrust to the movable part, so that the push plate 22 is always located at the lowest position, and further the flaw detection module 1 is always in the highest position, so as to facilitate the continuous detection operation of the flaw detection module 1 without the need for an additional power mechanism to support it. Obviously, the lifting elastic member 24 also has a similar function.

[0057] To facilitate the downward pushing of the pushing elastic member 19 on the movable part of the driving mechanism 15, for example, when the movable part is a piston rod, a sleeve 18 may be sleeved on the piston rod. The lower end of the sleeve 18 has a protruding ring. The pushing elastic member 19 may be, for example, a spring or an elastic rubber ring and is sleeved on the sleeve 18. One end of the pushing elastic member 19 abuts against the non-movable part or the ear seat 16 of the driving mechanism 15, and the other end abuts against the protruding ring of the sleeve 18. The pushing elastic member 19 is always in a compressed state, so as to always generate a thrust.

[0058] In addition, a housing may be additionally installed on the part of the present invention located inside the track 2 to further protect the relevant components from the influence of gravel, grit or rain.

[0059] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0060] The above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art in this technical field, without departing from the spirit and scope of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A lifting device for an on-line wheel flaw detection module, characterized in that: It includes a rotating shaft mounting seat (10), a rotating shaft (11), a push plate (22), a swing arm frame (23) and a driving mechanism (15); The rotating shaft (11) is rotatably mounted on the rotating shaft mounting seat (10); Both the push plate (22) and the swing arm frame (23) are connected to the rotating shaft (11) and can rotate synchronously with the rotating shaft (11); The driving mechanism (15) is hinged to one end of the push plate (22); the driving mechanism (15) drives the rotating shaft (11) to rotate through the push plate (22); One end of the swing arm frame (23) is arranged close to the track (2), and this end part moves up and down under the drive of the rotating shaft (11); The flaw detection module (1) is installed on this end part.

2. The lifting device for the on-line wheel flaw detection module according to claim 1, characterized in that: The whole lifting device is installed outside the track (2).

3. The lifting device for the on-line wheel flaw detection module according to claim 1, characterized in that: The rotating shaft mounting seat (10), the rotating shaft (11), the push plate (22) and the driving mechanism (15) are all arranged inside the track (2), and the swing arm frame (23) extends from the inside of the track (2) along the bottom of the track (2) to the outside of the track (2).

4. The lifting device for the on-line wheel flaw detection module according to claim 3, characterized in that: It also includes a rail clamping seat (3) and a fastener (5); The fastener (5) is installed on the rail clamping seat (3), and after the fastener (5) and the rail clamping seat (3) are combined, they are used to connect with the track (2); The rotating shaft mounting seat (10) is installed on the rail clamping seat (3).

5. The lifting device for the on-line wheel flaw detection module according to claim 4, characterized in that: The rail clamping seat (3) has a rail clip (4); the fastener (5) has a clamping part (6); the clamping part (6) and the rail clip (4) are respectively clamped on the inner and outer sides of the track (2).

6. The lifting device for the on-line wheel flaw detection module according to claim 4, characterized in that: It also includes a support plate (25) and a jacking elastic member (24); the support plate (25) is installed on the end part of the swing arm frame (23) located outside the track (2), and the flaw detection module (1) is installed on this support plate (25); the jacking elastic member (24) is arranged between the support plate (25) and the rail clamping seat (3) and at least provides an upward thrust to the support plate (25).

7. The lifting device for the on-line wheel flaw detection module according to claim 4, characterized in that: The fastener (5) has a first limit member (9) with an adjustable position; the first limit member (9) is used to limit the amplitude when the swing arm frame (23) rotates upward.

8. The lifting device for the on-line wheel flaw detection module according to claim 4, wherein: It also includes a support (26) and a second limit member (27); the support (26) is installed on the rail clamping seat (3); the second limit member (27) is arranged on the support (26) with an adjustable position, and the second limit member (27) is used to limit the amplitude when the swing arm frame (23) rotates downward.

9. The lifting device for the on-line wheel flaw detection module according to claim 1, wherein: It also includes a damper mounting seat (20) and a damper (21); the damper mounting seat (20) is installed on the rotating shaft mounting seat (10); the damper (21) is hinged between the damper mounting seat (20) and the push plate (22).

10. The lifting device for the on-line wheel flaw detection module according to claim 1, characterized in that: It also includes a top-pushing elastic member (19), and the top-pushing elastic member (19) is arranged on the driving mechanism (15) and at least provides a thrust to the moving parts of the driving mechanism (15).

Images