A locomotive solid axle detection device

Abstract

The present invention provides a locomotive solid axle detection device, which relates to the technical field of axle flaw detection equipment, and includes a cover shell and an annular electromagnet. A follower gear is arranged inside the cover shell, a slide is fixedly installed on the top of the follower gear, a linear slide rail assembly is fixedly installed on the top of the slide, two phased array probe groups are fixedly installed on the top of the linear slide rail assembly, and a positioning shaft mechanism is also fixedly installed on the top of the slide. The slide is driven by a motor to rotate two meshing gears, and the rotation of the slide simultaneously drives the phased array probe group to rotate. The phased array probe group is arranged at a specific angle, and can realize multi-angle and multi-stroke flaw detection, ensuring all-round flaw detection of the axle without replacing probes at different angles, thereby achieving high efficiency and high accuracy in the flaw detection process. The stability of the slide in the circumferential and radial directions is ensured by the cooperation of a number of rollers and guide rails.

Description

Technical Field

[0001] The invention relates to the technical field of axle flaw detection equipment, in particular to a locomotive solid axle detection equipment. Background Art

[0002] The axle is a key component for the safe operation of the train and is also the main component that bears the weight of the motor and wheelset. The axle is subjected to complex forces during the operation of the train and is prone to fatigue cracks. The cracks are hidden. If fatigue damage occurs to the axle and continues to expand, it will cause the axle to break, which will have a serious impact on driving safety, operational efficiency and economic benefits. In order to detect fatigue cracks in the axle in time, prevent axle breakage accidents, and ensure the safe operation of the train, it is necessary to perform ultrasonic flaw detection on the axle regularly.

[0003] Existing ultrasonic flaw detection mainly uses manual handheld straight probes and small-angle longitudinal wave probes to perform sound transmission performance and fatigue crack detection of the embedded part on the axle end. Different ultrasonic probes need to be replaced for testing different parts of the same axle type or different models of axles, and each time a probe is replaced, the flaw detection process corresponding to the probe needs to be selected. The entire flaw detection process has a large workload and low efficiency. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides a locomotive solid axle detection device, which solves the problem that different ultrasonic probes need to be replaced when detecting different parts of the same axle type or different models of axles during the prior ultrasonic flaw detection.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a locomotive solid axle detection device, including a cover shell and an annular electromagnet, a slave gear is arranged inside the cover shell, a slide is fixedly installed on the top of the slave gear, a linear slide rail combination is fixedly installed on the top of the slide, two phased array probe groups are fixedly installed on the top of the linear slide rail combination, and a positioning axis mechanism is also fixedly installed on the top of the slide.

[0006] The linear slide rail assembly includes a linear slide rail, two sliders and two probe mounting seats. The linear slide rail and the two sliders slide in cooperation with each other. The two sliders are fixedly connected to the bottoms of the two probe mounting seats respectively. The tops of the two probe mounting seats are fixedly connected to the bottoms of the phased array probe group respectively.

[0007] The positioning shaft mechanism comprises a positioning shaft mounting seat, a bearing and a positioning shaft. The positioning shaft mounting seat is fixedly mounted on the top of the slide, and the positioning shaft is mounted on the top of the positioning shaft mounting seat through a bearing.

[0008] Preferably, the two phased array probe groups can automatically adjust their heights up and down.

[0009] Preferably, the outer peripheral side of the positioning shaft is provided with coupling liquid spraying ports distributed in a circumferential array, and the interior of the positioning shaft is provided with a coupling liquid supply pipeline and a coupling liquid storage chamber.

[0010] Preferably, two ball bearing plates are disposed on the top of the two phased array probe groups, and a plurality of balls are disposed on the top of a plurality of ball bearing plates.

[0011] Preferably, a plurality of sealing connection holes are provided on the outer top of the slide.

[0012] A sealing cover fixedly connected to a plurality of sealing connection holes is arranged at the inner top of the annular electromagnet, a rectangular sealing ring is arranged between the sealing cover and the two phased array probe groups, and an annular sealing ring is arranged between the sealing cover and the inner wall of the annular electromagnet.

[0013] Preferably, the annular electromagnet, the sealing cover and the axle surface form a coupling liquid chamber.

[0014] Preferably, a rear cover plate is fixedly installed on the bottom of the cover shell, a motor mounting plate is fixedly installed on the inner wall of the cover shell, a motor located inside the cover shell is fixedly installed on the outer bottom of the motor mounting plate, and the motor output end is located above the motor mounting plate and is fixedly connected to a main gear.

[0015] The main gear and the slave gear are meshed and matched.

[0016] Preferably, a plurality of rollers are fixedly connected to the bottom of the slide, and guide rails located inside the cover shell are rollingly arranged on the outer peripheral sides of the plurality of rollers, and a plurality of first connection holes are opened on the outer top of the guide rails.

[0017] A plurality of second connection holes are formed on the outer bottom of the annular electromagnet, and the plurality of first connection holes and the plurality of second connection holes are aligned and connected one by one.

[0018] Preferably, an electromagnetic column is provided at the bottom of the annular electromagnet.

[0019] A first electromagnetic column hole is provided on the top of the guide rail.

[0020] A second electromagnetic column hole is provided on the top of the motor mounting plate, and the electromagnetic column passes through the first electromagnetic column hole and the second electromagnetic column hole in sequence.

[0021] (III) Beneficial effects The present invention provides a locomotive solid axle detection device, which has the following beneficial effects: 1. In the present invention, the slide is driven by a motor to drive two meshing gears to rotate, and the rotation of the slide simultaneously drives the phased array probe group to rotate. The phased array probe group is arranged at a specific angle, and can realize multi-angle and multi-stroke flaw detection, ensuring all-round flaw detection of the axle without replacing probes at different angles, thereby achieving high efficiency and accuracy in the flaw detection process.

[0022] 2. In the present invention, the coupling liquid spray port is set to evenly spray the coupling liquid on the surface of the inspected axle, thereby increasing the coupling liquid required in the axle detection process; the annular electromagnet, the sealing cover and the axle surface form a coupling liquid cavity, and the coupling liquid fills the coupling liquid cavity during the detection process, providing a good foundation for stable and accurate detection; a number of balls are set on the top of the phased array probe group, which can reduce the friction of the phased array probe group on the surface of the inspected axle, and can provide a sufficiently stable coupling layer.

[0023] 3. In the present invention, the stability of the slide in the circumferential and radial directions is ensured by the cooperation of a number of rollers and guide rails, reducing the impact of wear caused by the slide rotating along the annular electromagnet for a long time, and indirectly improving the accuracy of the phased array probe group on the slide for flaw detection of the axle. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a locomotive solid axle detection device of the present invention; Figure 2 for Figure 1 A is an enlarged schematic diagram; Figure 3 It is a cross-sectional view of a locomotive solid axle detection device; Figure 4 It is an exploded schematic diagram of a locomotive solid axle detection device; Figure 5 It is a structural schematic diagram of a ring-shaped electromagnet; Figure 6 It is a structural schematic diagram of the slide; Figure 7 It is a structural schematic diagram of a linear slide rail assembly; Figure 8 It is a structural schematic diagram of a phased array probe group; Fig. 9 It is a structural schematic diagram of the positioning shaft mechanism; Fig.10 It is a structural diagram of the motor mounting plate; Fig.11 The figure is the assembly diagram of roller and guide rail.

[0025] Among them, 1. cover shell; 2. annular electromagnet; 3. slave gear; 4. slide; 5. linear slide rail assembly; 6. phased array probe group; 7. positioning shaft mechanism; 8. sealing cover; 9. rear cover plate; 10. motor mounting plate; 11. motor; 12. main gear; 13. roller; 14. guide rail; 201. annular sealing ring; 202. second connecting hole; 203. electromagnetic column; 401. sealing connecting hole; 501. linear slide rail; 502. slider; 503. probe mounting seat; 601. ball plate; 6011. ball; 602. rectangular sealing ring; 701. positioning shaft mounting seat; 702. bearing; 703. positioning shaft; 7031. coupling liquid spray port; 1001. second electromagnetic column hole; 1401. first connecting hole; 1402. first electromagnetic column hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 11 As shown, an embodiment of the present invention provides a locomotive solid axle detection device, including a cover 1 and an annular electromagnet 2, a slave gear 3 is arranged inside the cover 1, a slide 4 is fixedly installed on the top of the slave gear 3, a linear slide rail assembly 5 is fixedly installed on the top of the slide 4, two phased array probe groups 6 are fixedly installed on the top of the linear slide rail assembly 5, and a positioning shaft mechanism 7 is also fixedly installed on the top of the slide 4; the linear slide rail assembly 5 includes a linear slide rail 501, two sliders 502 and two probe mounting seats 503, the linear slide rail 501 and the two sliders 502 slide with each other, the two sliders 502 and the bottom of the two probe mounting seats 503 are respectively fixedly connected, and the tops of the two probe mounting seats 503 are respectively fixedly connected to the bottom of the phased array probe group 6; the positioning shaft mechanism 7 includes a positioning shaft mounting seat 701, a bearing 702 and a positioning shaft 703, the positioning shaft mounting seat 701 is fixedly installed on the top of the slide 4, and the positioning shaft 703 is installed on the top of the positioning shaft mounting seat 701 through the bearing 702.

[0028] The height of the two phased array probe groups 6 can be automatically adjusted up and down. The outer peripheral side of the positioning shaft 703 is provided with coupling liquid spray ports 7031 distributed in a circumferential array, and the interior of the positioning shaft 703 is provided with a coupling liquid supply pipeline and a coupling liquid storage chamber. Two ball bearing plates 601 are provided on the top of the two phased array probe groups 6, and a plurality of ball bearing plates 601 are provided on the top of the plurality of ball bearing plates 601. A plurality of sealing connection holes 401 are provided on the outer top of the slide 4; a sealing cover 8 fixedly connected to the plurality of sealing connection holes 401 is provided on the inner top of the annular electromagnet 2, and a rectangular sealing ring 602 is provided between the sealing cover 8 and the two phased array probe groups 6, and an annular sealing ring 201 is provided between the sealing cover 8 and the inner wall of the annular electromagnet 2. The annular electromagnet 2, the sealing cover 8 and the axle surface form a coupling liquid cavity.

[0029] The bottom of the housing 1 is fixedly installed with a rear cover plate 9, the inner wall of the housing 1 is fixedly installed with a motor mounting plate 10, the outer bottom of the motor mounting plate 10 is fixedly installed with a motor 11 located inside the housing 1, and the output end of the motor 11 is located above the motor mounting plate 10 and is fixedly connected with a main gear 12; the main gear 12 and the slave gear 3 are meshed. The bottom of the slide 4 is fixedly connected with a plurality of rollers 13, and the outer peripheral side of the plurality of rollers 13 is rollingly provided with a guide rail 14 located inside the housing, and the outer top of the guide rail 14 is provided with a plurality of first connection holes 1401; the outer bottom of the annular electromagnet 2 is provided with a plurality of second connection holes 202, and the plurality of first connection holes 1401 and the plurality of second connection holes 202 are aligned and connected one by one. The bottom of the annular electromagnet 2 is provided with an electromagnetic column 203; the top of the guide rail 14 is provided with a first electromagnetic column hole 1402; the outer top of the motor mounting plate 10 is provided with a second electromagnetic column hole 1001, and the electromagnetic column 203 passes through the first electromagnetic column hole 1402 and the second electromagnetic column hole 1001 in sequence.

[0030] In the present invention, an array probe is a probe that contains multiple single chips in a single housing, where phased control means that these chips complete pulse triggering in sequence. The present invention uses a phased array probe group 6 that can automatically adjust the height up and down to facilitate the detection of axles. Several sealed connection holes 401 opened on the top of the slide 4 are fixedly connected to the sealing cover 8, the linear slide assembly 5 is fixedly installed on the top of the slide 4, and the two phased array probe groups 6 are fixedly installed on the top of the linear slide assembly 5. Different sealing covers 8 can be replaced according to the size of different axles to be inspected to complete the installation size adjustment of the phased array probe group 6.

[0031] During use of the present invention, the motor 11 drives two meshing gears to drive the slide 4 to rotate. The rotation of the slide 4 also drives the phased array probe group 6 to rotate. The phased array probe group 6 is arranged at a specific angle, which can realize multi-angle and multi-stroke flaw detection, ensuring all-round flaw detection of the axle without replacing probes at different angles, thereby achieving high efficiency and accuracy in the flaw detection process.

[0032] By starting the motor 11 fixedly installed at the outer bottom of the motor mounting plate 10, the main gear 12 fixedly connected to the top of the motor mounting plate 10 at the output end of the motor 11 rotates, driving the slave gear 3 meshing with the main gear 12 to rotate, and driving the slide 4 fixedly installed on the top of the slave gear 3 to rotate. Since the bottom of the slide 4 is fixedly connected to the top of a plurality of rollers 13 and the plurality of rollers 13 are slidably engaged on the inner wall of the guide rail 14, the deflection of the slide 4 relative to the guide rail 14 is avoided. The stability of the rotation of the slide 4 in the circumferential direction and the radial direction is ensured by the cooperation of the plurality of rollers 13 and the guide rail 14, and the influence caused by the wear of the slide 4 caused by the long-term rotation of the annular electromagnet 2 is reduced, and the flaw detection accuracy of the phased array probe group 6 on the slide 4 on the axle is indirectly improved.

[0033] The positioning shaft mechanism 7 is composed of a positioning shaft mounting seat 701, a bearing 702 and a positioning shaft 703. The coupling liquid supply pipeline and the coupling liquid storage chamber are arranged inside the positioning shaft 703. After the coupling liquid is added, when the device of the present invention is used and the device is moved on the surface of the axle, the coupling liquid in the coupling liquid supply pipeline and the coupling liquid storage chamber in the positioning shaft 703 will be sprayed out from the coupling liquid spraying ports 7031 distributed in a circumferential array arranged on the outer peripheral side of the positioning shaft 703. The coupling liquid is evenly sprayed on the surface of the inspected axle through the coupling liquid spraying ports 7031, thereby increasing the coupling liquid required in the axle detection process. The annular electromagnet 2 and the guide rail are fixedly connected by bolts, and the annular electromagnet 2 and the sealing cover 8 are connected by a slidable seal. The annular electromagnet 2, the sealing cover 8 and the surface of the axle form a coupling liquid cavity. During the detection process, the coupling liquid fills the coupling liquid cavity, providing a good foundation for stable and accurate detection (the coupling liquid is usually a medium with good sound conduction properties. It is applied between the sensor and the material to be measured to form a close contact layer, so that elastic waves or ultrasonic waves can be smoothly transmitted from the sensor to the material to be measured, and the energy loss is minimized during the propagation process. It can also eliminate the unevenness between the sensor and the surface of the material to be measured and provide a uniform interface).

[0034] A number of balls 6011 are arranged on the top of the phased array probe group 6, which can reduce the friction of the phased array probe group 6 on the surface of the inspected axle and provide a sufficiently stable coupling layer. The rectangular sealing rings 602 respectively arranged between the sealing cover 8 and the two phased array probe groups 6 and the annular sealing ring 201 arranged between the sealing cover 8 and the inner wall of the annular electromagnet 2 can ensure that the coupling liquid will not leak, fully ensuring that the coupling liquid is fully stored during the axle detection process, and protecting other parts inside the slide 4 from being corroded by the coupling liquid.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locomotive solid axle detection device, characterized in that: The invention comprises a cover (1) and an annular electromagnet (2), wherein a slave gear (3) is arranged inside the cover (1), a slide table (4) is fixedly mounted on the top of the slave gear (3), a linear slide rail assembly (5) is fixedly mounted on the top of the slide table (4), two phased array probe groups (6) are fixedly mounted on the top of the linear slide rail assembly (5), and a positioning shaft mechanism (7) is also fixedly mounted on the top of the slide table (4); The linear slide rail assembly (5) comprises a linear slide rail (501), two sliders (502) and two probe mounting seats (503); the linear slide rail (501) and the two sliders (502) are slidably matched with each other; the two sliders (502) and the bottoms of the two probe mounting seats (503) are respectively fixedly connected; and the tops of the two probe mounting seats (503) are respectively fixedly connected to the bottom of the phased array probe group (6); The positioning shaft mechanism (7) comprises a positioning shaft mounting seat (701), a bearing (702) and a positioning shaft (703); the positioning shaft mounting seat (701) is fixedly mounted on the top of the slide table (4); and the positioning shaft (703) is mounted on the top of the positioning shaft mounting seat (701) via the bearing (702).

2. The locomotive solid axle detection device according to claim 1, characterized in that: The two phased array probe groups (6) can both automatically adjust their heights up and down.

3. The locomotive solid axle detection device according to claim 2, characterized in that: The outer peripheral side surface of the positioning shaft (703) is provided with coupling liquid spraying ports (7031) distributed in a circumferential array, and the interior of the positioning shaft (703) is provided with a coupling liquid supply pipeline and a coupling liquid storage chamber.

4. The locomotive solid axle detection device according to claim 3, characterized in that: Two ball bearing plates (601) are arranged on the top of the two phased array probe groups (6), and a plurality of ball bearing plates (601) are arranged on the top of a plurality of ball bearing plates (601).

5. The locomotive solid axle detection device according to claim 4, characterized in that: The top of the sliding platform (4) is provided with a plurality of sealing connection holes (401); A sealing cover (8) fixedly connected to a plurality of sealing connection holes (401) is provided at the inner top of the annular electromagnet (2), a rectangular sealing ring (602) is provided between the sealing cover (8) and the two phased array probe groups (6), and an annular sealing ring (201) is provided between the sealing cover (8) and the inner wall of the annular electromagnet (2).

6. The locomotive solid axle detection device according to claim 5, characterized in that: The annular electromagnet (2), the sealing cover (8) and the surface of the axle form a coupling liquid cavity.

7. The locomotive solid axle detection device according to claim 6, characterized in that: A rear cover plate (9) is fixedly mounted on the bottom of the housing (1), a motor mounting plate (10) is fixedly mounted on the inner wall of the housing (1), a motor (11) located inside the housing (1) is fixedly mounted on the outer bottom of the motor mounting plate (10), and an output end of the motor (11) is located above the motor mounting plate (10) and is fixedly connected to a main gear (12); The main gear (12) and the slave gear (3) are in meshing cooperation.

8. The locomotive solid axle detection device according to claim 7, characterized in that: A plurality of rollers (13) are fixedly connected to the bottom of the slide (4); guide rails (14) located inside the housing are rollably arranged on the outer peripheral sides of the plurality of rollers (13); and a plurality of first connection holes (1401) are opened on the outer top of the guide rails (14); The outer bottom of the annular electromagnet (2) is provided with a plurality of second connection holes (202), and the plurality of first connection holes (1401) and the plurality of second connection holes (202) are aligned and connected one by one.

9. The locomotive solid axle detection device according to claim 8, characterized in that: An electromagnetic column (203) is provided at the bottom of the annular electromagnet (2); A first electromagnetic column hole (1402) is provided at the top of the guide rail (14); A second electromagnetic column hole (1001) is provided on the outer top of the motor mounting plate (10), and the electromagnetic column (203) passes through the first electromagnetic column hole (1402) and the second electromagnetic column hole (1001) in sequence.

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