Self-balancing monorail type steel rail flaw detection trolley

Abstract

The utility model discloses a self-balancing monorail type steel rail flaw detection trolley which comprises a trolley support, a plurality of probes are installed on the lower portion of the trolley support in the direction of a steel rail, a two-way limiting assembly is further arranged at the bottom of the trolley support, and a self-balancing assembly used for achieving the self-balancing state of the flaw detection trolley on the rail surface is arranged on the trolley support. A water tank is further installed on the upper portion of the trolley support, a host support is connected to the top of the water tank, and a host is connected to the host support and electrically connected with the probe. The self-balancing assembly comprises a frame and a rotary disc motor unit, and the rotary disc motor unit is movably connected with the frame and suspended in the frame. According to the utility model, the monorail trolley is always in a self-balancing state in the working process, so that the labor intensity of detection personnel is reduced, and the detection accuracy and the detection efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway track maintenance equipment technical field, concretely relates to self -balancing monorail type rail flaw detection trolley. BACKGROUND

[0002] Rail flaw detection is an important link of guaranteeing railway transportation safety, and its detection efficiency and accuracy are directly related to train operation safety. In the existing flaw detection technical system, monorail trolley flaw detection plays an irreplaceable role in key detection scenes due to its high precision advantage. However, the traditional monorail trolley relies on manual handheld pushing operation mode, and there are many technical bottlenecks. On the one hand, the coupling effect between the rail surface and the probe is significantly affected by human factors. When the operation personnel walk in the track center, due to the uneven track surface, walking posture change and other reasons, the probe position is easily deviated, which affects the transmission and reception of ultrasonic signals, causing damage detection omission or misjudgment. On the other hand, long time hand pushing operation not only aggravates personnel fatigue, but also has the risk of instrument falling and colliding with track components due to operation error. In severe cases, it may damage the precision probe and electronic components, increasing equipment maintenance cost. SUMMARY

[0003] The utility model discloses a self -balancing monorail type rail flaw detection trolley, realize monorail trolley in the work always in self -balancing state, thereby reduce the labor intensity of detection personnel, improve the accuracy of detection and detection efficiency.

[0004] The utility model discloses the technical scheme that adopts, self -balancing monorail type rail flaw detection trolley, including trolley support, a plurality of probes are installed to the lower part of trolley support along the rail trend, the bottom of trolley support still is provided with two -way limiting component, still be provided with the self -balancing component that is used for flaw detection trolley realizes self -balancing state on the rail surface on trolley support,

[0005] The upper part of trolley support still is installed with water tank, and the top of water tank is connected with host computer support, and the host computer support is connected with host computer, and the host computer is electrically connected with probe.

[0006] The self -balancing component includes frame and turntable motor unit, and the turntable motor unit is movably connected with the frame and hangs in the frame.

[0007] The utility model discloses the features still lie in,

[0008] The frame includes a bottom plate, the bottom plate is connected with the trolley support, the periphery of the bottom plate is vertically fixedly connected with a side plate, the top of the side plate is connected with a waterproof top plate, and the water tank is located at the top of the waterproof top plate.

[0009] The rotating disc motor unit comprises a pair of rotating disc bases which are linearly distributed along the track, and a pin shaft is respectively arranged on the side plate of the rotating disc base, one end of the pin shaft is connected with the rotating disc base, and the rotating disc base is suspended in the frame;

[0010] The rotating disc base is provided with a rotating disc and a rotating disc motor for driving the rotating disc to rotate.

[0011] The rotating disc motor is a direct current motor.

[0012] The side plate is provided with a battery hole for mounting a power supply, and a power-on indicator and a power switch are arranged above the battery hole, and the power-on indicator, the power switch and the rotating disc motor are electrically connected with the power supply through a line.

[0013] The bidirectional limiting assembly comprises a bidirectional limiting nylon wheel, a rotating shaft is arranged in the center of the bidirectional limiting nylon wheel, and the two ends of the rotating shaft are movably connected with the trolley support through rotating bearings.

[0014] One end of the rotating shaft is further provided with a driving motor, the output shaft of the driving motor is coaxially connected with the rotating shaft, and the driving motor is fixedly connected with the trolley support.

[0015] The driving motor is a stepping motor or a servo motor, and the driving motor is electrically connected with the power supply through a line.

[0016] The utility model discloses the beneficial effect that,

[0017] (1) the utility model discloses a self-balancing monorail type rail flaw detection trolley which is provided with a bidirectional limiting assembly, when the flaw detection trolley is used for flaw detection, the bidirectional limiting nylon wheel can be clamped on the rail head, so that the probe assembly installed on the trolley is located at the center of the rail surface, the probe position is not centered left and right due to the reasons of pushing posture, unilateral limiting of the nylon wheel and the like, and the flaw detection precision is affected.

[0018] (2) the utility model discloses a self-balancing monorail type rail flaw detection trolley which is provided with a self-balancing assembly, so that the flaw detection trolley placed on the rail surface can automatically keep balance without manual holding, the risk of instrument falling off the track is reduced, and the instrument pushing personnel labor intensity is reduced. DRAWINGS

[0019] Figure 1 It is a structure schematic view of the utility model discloses a self-balancing monorail type rail flaw detection trolley;

[0020] Figure 2 It is a sectional view of the utility model discloses a self-balancing monorail type rail flaw detection trolley;

[0021] Figure 3It is the structure schematic view of the bidirectional limiting assembly in the utility model;

[0022] Figure 4 It is the side view of the bidirectional limiting assembly in the utility model;

[0023] Figure 5 It is the structure schematic view of the self-balancing assembly in the utility model;

[0024] Figure 6 It is the side view of the self-balancing assembly in the utility model.

[0025] In the drawing, 1. rail, 2. bidirectional limiting assembly, 3. self-balancing assembly, 4. trolley support, 5. probe, 6. water tank, 7. main machine support, 8. main machine, 201. bidirectional limiting nylon wheel, 202. rotating bearing, 203. driving motor, 301. bottom plate, 302. side plate, 303. shaft pin, 304. wheel disc base, 305. wheel disc motor, 306. wheel disc, 307. battery hole position, 308. power-on indicating lamp, 309. power switch, 310. waterproof top plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Embodiment 1

[0028] The utility model discloses a self-balancing monorail rail flaw detection trolley, as shown in the drawing, including trolley support 4, the lower part of trolley support 4 is installed with a plurality of probes 5 along the rail 1, and the bottom of trolley support 4 is also provided with bidirectional limiting assembly 2, and trolley support 4 is provided with self-balancing assembly 3 for realizing the self-balancing state of the flaw detection trolley on the rail surface. Figure 1

[0029] The upper part of trolley support 4 is also provided with water tank 6, the top of water tank 6 is connected with main machine support 7, main machine support 7 is connected with main machine 8, and main machine 8 is electrically connected with probe 5.

[0030] Self-balancing assembly 3 includes a frame and a rotating disc motor unit, the rotating disc motor unit is movably connected with the frame and is suspended in the frame.

[0031] The rotating disc motor unit of the embodiment adopts the existing rotating disc motor, the model is JGB37-520, and the balance control of the trolley on the rail surface is realized by utilizing angular momentum conservation and gyro effect.

[0032] ​The rotor of the rotary motor has a large angular momentum when rotating at a high speed. When the trolley is disturbed by external force (such as tilting and vibration), the angular momentum conservation characteristic will resist the disturbance, so that the rotating shaft direction of the rotor remains stable, thereby inhibiting the attitude change of the trolley. Meanwhile, the high-speed rotating rotary motor is equivalent to a gyroscope. When the trolley tilts, the rotor shaft will produce precession (slow rotation around the vertical axis). By controlling the torque of the motor, a reverse torque can be generated to offset the tilting trend and achieve balance.

[0033] Embodiment 2

[0034] The utility model discloses a self -balancing monorail type rail flaw detection trolley, as shown in Figure 1 and Figure 2 , including trolley support 4, seven probes 5 are installed to trolley support 4 lower part along the rail 1 trend, and the probe 5 mainly emits and receives ultrasonic wave to the rail 1, and the seven probes 5 are located on the same horizontal plane, and the rail flaw detection operation directly contacts the rail 1 rail surface, and the bottom of trolley support 4 is also provided with two -way limiting component 2 for limiting the position of probe assembly 5 in the rail surface center, and the trolley support 4 is provided with the self -balancing component 3 for realizing the self -balancing state of flaw detection trolley on the rail surface,

[0035] The upper part of trolley support 4 is also provided with water tank 6, and the water valve is installed in the lower part of water tank during flaw detection operation, so that the water in water tank is dropped on the rail surface, the gap between probe 5 and rail 1 is eliminated, and the sound wave is better into the rail interior. The top of water tank 6 is connected with host machine support 7 for adjusting the pitch angle and horizontal direction rotation of host machine 8, the host machine support 7 is connected with host machine 8, and the host machine 8 is electrically connected with probe 5. Host machine 8 emits electric pulse to probe 5 through connecting line, probe 5 converts electric pulse into ultrasonic pulse, ultrasonic wave is reflected back to probe 5 when encountering defect, probe 5 converts ultrasonic signal into electric signal and transmits to host machine 8, and the host machine 8 analyzes ultrasonic detection waveform and judges the internal damage of rail 1.

[0036] As shown in Figure 3 , the two-way limiting component 2 includes a two-way limiting nylon wheel 201, the wheel groove of the two-way limiting nylon wheel 201 is attached to the surface of the rail 1, a rotating shaft is inserted through the center of the two-way limiting nylon wheel 201, and the two ends of the rotating shaft are movably connected to the trolley support 4 through rotating bearings 202.

[0037] In the process of detecting the railway track by using the rail flaw detection trolley, the probe assembly 5 installed on the trolley can be located at the center of the rail surface by arranging the two-way limiting component 2, so as to avoid the problem of uncentered position of the probe caused by the pushing posture of the personnel, unilateral limiting of the nylon wheel, and the like, and improve the damage detection accuracy. By arranging the self-balancing component 3, the flaw detection trolley placed on the rail surface can automatically maintain balance without manual holding, thereby preventing the instrument from falling and being damaged.

[0038] Example 3

[0039] This embodiment is based on the above embodiment 2, such as Figure 4 As shown, a drive motor 203 is also provided at one end of the rotating shaft of this utility model. The output shaft of the drive motor 203 is coaxially connected to the rotating shaft, and the drive motor 203 is fixedly connected to the trolley bracket 4. By setting the drive motor 203 in the bidirectional limiting component 2, the instrument can be changed from a manual pushing mode to an automatic walking mode, which reduces the labor intensity of the instrument pushing personnel in damage detection.

[0040] The drive motor 203 is a stepper motor or a servo motor, and the drive motor 203 is electrically connected to the power supply via a line.

[0041] Example 4

[0042] This utility model relates to a self-balancing monorail rail flaw detection trolley, such as... Figure 1 As shown, the system includes a trolley support 4. Seven probes 5 are installed along the lower part of the trolley support 4 along the rail 1. The seven probes are used to detect damage to the rail head, rail web, and rail base, increasing the number of scans and improving the detection rate of rail damage. A bidirectional limiting component 2 is also provided at the bottom of the trolley support 4, and a self-balancing component 3 is provided on the trolley support 4 to enable the flaw detection trolley to achieve self-balancing on the rail surface.

[0043] A water tank 6 is also installed on the upper part of the trolley bracket 4. The top of the water tank 6 is connected to the main unit bracket 7. The main unit 8 is connected to the main unit bracket 7. The main unit 8 is electrically connected to the probe 5.

[0044] The self-balancing component 3 includes a frame and a turntable motor unit, which is movably connected to the frame and suspended inside the frame.

[0045] like Figure 5 As shown, the frame includes a base plate 301, which is connected to the trolley bracket 4. Side plates 302 are vertically fixed around the base plate 301, totaling four side plates 302. A waterproof top plate 310 is connected to the top of the side plates 302, and the water tank 6 is located on top of the waterproof top plate 310. The waterproof top plate 310 prevents water in the water tank 6 from flowing into the self-balancing assembly 3.

[0046] The turntable motor unit includes a pair of turntable bases 304, which are linearly distributed along the rail 1. Pins 303 are respectively threaded through the side plates 302 of the opposite turntable bases 304, with one end of each pin 303 connected to the turntable base 304, thus suspending the turntable bases 304 inside the frame. Figure 6 As shown, in this embodiment, four pins 303 are inserted through the two opposing long side plates 302, which can both suspend the wheel base 304 inside the frame and allow the wheel base 304 to tilt forward or backward.

[0047] The wheel disc 306 and the wheel disc motor 305 are installed on the wheel disc base 304, the wheel disc motor 305 is in driving connection with the wheel disc 306, and the wheel disc 306 is driven to rotate at high speed through the wheel disc motor 305. The structure refers to the existing rotating disc motor structure, and details are not described herein.

[0048] The core of the self-balancing assembly 3 in the embodiment is that dynamic stability is realized by adjusting the inclination angle of the wheel disc base 304 and high-speed rotation of the wheel disc 306 through gyroscopic effect and precession effect. When the wheel disc 306 rotates at high speed under the driving of the wheel disc motor 305, the rotation axis direction of the wheel disc 306 remains stable due to the conservation of angular momentum (similar to the rotor of a gyroscope). When external disturbance (such as track bumping and load offset) causes the frame to tilt as a whole, the rotation axis of the wheel disc 306 will instinctively resist the sudden change in direction, and part of the tilting torque is offset through gyroscopic axis fixation, thereby slowing down the unbalance trend.

[0049] Meanwhile, the wheel disc base 304 is hinged to the side plate 302 through the pin shaft 303, allowing it to tilt forward or backward around the pin shaft axis. This degree of freedom allows the rotation plane of the wheel disc 306 to be dynamically adjusted according to the inclination of the frame. When the frame tilts forward due to external force, the wheel disc base 304 can be adjusted to tilt backward slightly, and by changing the direction of the wheel disc rotation plane, a gyroscopic torque opposite to the tilting direction (i.e. precession torque) is generated, partially offsetting the imbalance. Similarly, if the frame tilts backward, the wheel disc base 304 tilts forward for adjustment, and the attitude is corrected in the opposite direction through gyroscopic effect.

[0050] Embodiment 5

[0051] In the above embodiment 4, the wheel disc motor 305 is a direct current motor, which has a wide speed regulation range and supports stepless speed regulation, has high precision, and has strong rotation stability. In addition, the micro direct current motor has a relatively small size, which can adapt to the narrow space inside the frame.

[0052] Embodiment 6

[0053] In the above embodiment 4, as shown in Figure 5 The side plate 302 is provided with a battery hole position 307 for installing a power supply, and the side plate 302 is provided with a power-on indicator lamp 308 and a power switch 309 above the battery hole position 307. The driving motor 203, the power-on indicator lamp 308, the power switch 309 and the wheel disc motor 305 are electrically connected with the power supply through a circuit.

[0054] The utility model discloses a self -balancing monorail trolley, when using, first manually lift and place the trolley on the rail surface, make the bidirectional limiting nylon wheel 201 of bidirectional limiting assembly 2 clamp on the rail head of rail 1, prevent the probe assembly left and right deflection, secondly, the battery of self -balancing assembly 3 battery hole position 307 is loaded, and the power switch 309 is opened, and the wheel motor 305 and the power -on pilot lamp 308 are powered.

[0055] Finally, it should also be noted that in this document, the terms "comprise", "comprising", or any other variant thereof do not exclude the presence of additional elements than those listed in the process, method, article or apparatus. In other words, the terms "comprise", "comprising", or any other variant thereof mean that the process, method, article or apparatus includes the listed elements, but not excluding the presence of additional elements.

[0056] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0057] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-balanced monorail rail flaw detection trolley, comprising a trolley support (4), wherein a plurality of probes (5) are installed on the lower part of the trolley support (4) along the direction of a rail (1), characterized in that, The bottom of the trolley support (4) is also provided with a bidirectional limiting component (2), and the trolley support (4) is provided with a self-balancing component (3) for realizing self-balancing state of the flaw detection trolley on the rail surface. The upper portion of the trolley support (4) is also provided with a water tank (6), the top of the water tank (6) is connected with a host support (7), the host support (7) is connected with a host (8), and the host (8) is electrically connected with the probe (5). The self-balancing component (3) comprises a frame and a turntable motor unit, the turntable motor unit is movably connected with the frame and suspends in the frame.

2. The self-balancing monorail rail flaw detection trolley according to claim 1, characterized in that, The frame comprises a bottom plate (301), the bottom plate (301) is connected with the trolley support (4), and the periphery of the bottom plate (301) is vertically and fixedly connected with a side plate (302), the top of the side plate (302) is connected with a waterproof top plate (310), and the water tank (6) is located at the top of the waterproof top plate (310).

3. The self-balancing monorail rail flaw detection trolley according to claim 2, characterized in that, The turntable motor unit comprises a pair of turntable bases (304), the pair of turntable bases (304) are linearly distributed along the running direction of the steel rail (1), the side plates (302) opposite to the turntable bases (304) are respectively penetrated by a pin shaft (303), one end of the pin shaft (303) is connected with the turntable base (304), and the turntable base (304) suspends in the frame; The turntable base (304) is provided with a turntable (306) and a turntable motor (305) for driving the turntable (306) to rotate.

4. The self-balancing monorail rail flaw detection trolley according to claim 3, characterized in that, The turntable motor (305) is a direct current motor.

5. The self-balancing monorail rail flaw detection trolley according to claim 3, characterized in that, The side plate (302) is provided with a battery hole (307) for mounting a power supply, the side plate (302) is provided with a power-on indicating lamp (308) and a power switch (309) above the battery hole (307), and the power-on indicating lamp (308), the power switch (309) and the turntable motor (305) are electrically connected with the power supply through lines.

6. The self-balancing monorail rail flaw detection trolley according to claim 5, characterized in that, The bidirectional limiting component (2) comprises a bidirectional limiting nylon wheel (201), the wheel groove of the bidirectional limiting nylon wheel (201) is attached to the surface of the steel rail (1), a rotating shaft is arranged in the center of the bidirectional limiting nylon wheel (201), and the two ends of the rotating shaft are movably connected with the trolley support (4) through rotating bearings (202).

7. The self-balancing monorail rail inspection trolley according to claim 6, characterized in that One end of the rotating shaft is also provided with a driving motor (203), the output shaft of the driving motor (203) is coaxially connected with the rotating shaft, and the driving motor (203) is fixedly connected with the trolley support (4).

8. The self-balancing monorail rail inspection trolley according to claim 7, characterized in that The driving motor (203) is a stepping motor or a servo motor, and the driving motor (203) is electrically connected with the power supply through lines.

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