Device for detecting looseness of screws and bolts at important parts of rail operation vehicle

Abstract

The invention discloses a device for detecting looseness of screws and bolts at important parts of a rail operation vehicle, and particularly relates to the field of screw looseness detection.The device comprises a screw, a nut is arranged at the top end of the screw, a sensor is arranged on the outer surface of the nut in a sleeving mode, and a battery, a communication module, a signal processing module and a detection mechanism are arranged in the sensor; and the battery supplies power to the work of the communication module, the signal processing module and the detection mechanism. The screw looseness detection sensor is additionally arranged, so that the working efficiency is improved, the labor intensity of workers is reduced, and accidents caused by screw looseness are avoided; screw loosening sensing can achieve remote communication, a manager can master the screw loosening condition of important parts of each vehicle in time through upper software, and vehicle safety management is facilitated.

Description

Technical Field

[0001] The present invention relates to the field of screw loosening detection, and more specifically, to a device for detecting the loosening of screws and bolts at important parts of a rail vehicle. Background Art

[0002] Track operation vehicles are multifunctional construction equipment for local operations on the line between large-scale track maintenance machinery and manual operations. Checking whether the screws and bolts in the main parts of the track operation vehicle are loose is conducive to operational safety, reducing accidents, and improving vehicle efficiency. During driving, due to the influence of factors such as corrosion, vibration and impact, it is easy to cause the screws and bolts to deform, loosen, break or fall off, causing equipment failure and even major safety accidents. Therefore, the inspection of the looseness of screws and bolts has always been an important item in the daily inspection of vehicles.

[0003] At present, the main method for checking the loose screws and bolts of rail vehicles is manual inspection, which mainly includes the screw tapping and listening test, wrench tightening inspection method, line drawing and marking method, etc. These methods are labor-intensive, inefficient, non-targeted, easy to fatigue, and lead to wrong inspection and missed inspection.

[0004] There are a large number of screws and bolts on the rail operation vehicle, and their installation positions are different. The installation positions of many screws and bolts are difficult to observe, which increases the difficulty of inspection.

[0005] Manual inspection of screws and bolts in major parts of rail operation vehicles is labor-intensive, inefficient, and lacks specificity, making it easy to make mis-inspections or missed inspections, thus creating potential safety hazards.

[0006] The inspection environment for screws and bolts in important parts of rail operating vehicles is complex, the space is small, and manual inspection is incomplete, making it difficult to detect loose screws and bolts in a timely manner. Summary of the invention

[0007] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a device for detecting loose screws and bolts in important parts of a rail working vehicle. By adding a screw loosening detection sensor, it is helpful to improve work efficiency, reduce labor intensity of personnel, and avoid accidents caused by loose screws; the screw loosening sensor can communicate remotely, and the management personnel can timely grasp the loose screw conditions of important parts of each vehicle through the upper software, which is beneficial to vehicle safety management.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting loose screws and bolts in important parts of a rail working vehicle, comprising a screw, a nut is arranged on the top of the screw, a sensor is sleeved on the outer surface of the nut, and the interior of the sensor includes a battery, a communication module, a signal processing module and a detection mechanism, and the battery provides power for the communication module, the signal processing module and the detection mechanism.

[0009] Furthermore, a spring washer and a flat washer are sequentially sleeved on the outer surface of the screw below the nut.

[0010] Furthermore, a fixing screw is fixedly mounted on one side of the sensor, and the sensor is fixedly mounted on the outer surface of the nut through the fixing screw.

[0011] Furthermore, the detection mechanism includes a shell and a spring bolt arranged at the center of the shell, the outer surface of the spring bolt is provided with a moving contact, and the outer surface of the spring bolt is sleeved with a spring bolt adjustment nut.

[0012] Furthermore, upper contacts and lower contacts are respectively arranged inside the shell.

[0013] Furthermore, a spring bolt fixing nut is provided at the top end of the shell.

[0014] Furthermore, the detection mechanism is connected to the upper software via a wireless signal via a communication module.

[0015] Furthermore, the signal processing module is used in conjunction with the detection mechanism, and the signal processing module transmits the state change signal detected by the detection mechanism to the communication module.

[0016] Technical effects and advantages of the present invention:

[0017] Adding loose screw detection sensors can help improve work efficiency, reduce labor intensity, and avoid accidents caused by loose screws. Loose screw sensors can communicate remotely, and managers can use upper-level software to timely understand the loose screw conditions of important parts of each vehicle, which is beneficial to vehicle safety management. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the sensor structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the contact position between the sensor and the nut of the present invention.

[0020] Figure 3 It is a schematic diagram of the detection mechanism of the present invention.

[0021] Figure 4 It is a circuit schematic diagram of the present invention.

[0022] The accompanying drawings are marked as follows: 1. sensor; 2. spring washer; 3. flat washer; 4. battery; 5. fixing screw; 6. screw; 7. communication module; 8. signal processing module; 9. detection mechanism; 10. spring bolt fixing nut; 11. upper contact; 12. moving contact; 13. lower contact; 14. spring bolt; 15. spring bolt adjustment nut. DETAILED DESCRIPTION

[0023] 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.

[0024] according to Figure 1-4 The device for detecting loose screws and bolts at important parts of a rail working vehicle shown in the figure comprises a screw 6, a nut is arranged at the top of the screw 6, a sensor 1 is sleeved on the outer surface of the nut, and the interior of the sensor 1 comprises a battery 4, a communication module 7, a signal processing module 8 and a detection mechanism 9, and the battery 4 provides power for the operation of the communication module 7, the signal processing module 8 and the detection mechanism 9.

[0025] In a preferred embodiment, the outer surface of the screw 6 is located below the nut and is sequentially sleeved with a spring washer 2 and a flat washer 3. A fixing screw 5 is fixedly installed on one side of the sensor 1, and the sensor 1 is fixedly installed on the outer surface of the nut through the fixing screw 5. The function of the flat washer 3 is to support the spring bolt 14 and the spring washer 2. The function of the spring washer 2 is to give an upward force to the screw 6 when the screw 6 is loosened, so as to prevent the screw 6 from having no supporting force after being loosened, causing the screw 6 to move downward and causing false detection.

[0026] In a preferred embodiment, the detection mechanism 9 includes a housing and a spring bolt 14 arranged in the center of the housing, the outer surface of the spring bolt 14 is provided with a moving contact 12, and the outer surface of the spring bolt 14 is sleeved with a spring bolt adjustment nut 15. When the screw is tightened, the distance between the sensor 1 and the gasket 3 will decrease, the spring bolt 14 will move upward, and the moving contact 12 on the spring bolt 14 will also move upward accordingly. The spring bolt 14 adjustment nut 15 is adjusted to make the moving contact 12 contact the upper contact 11, and K1 is turned on. Tighten the fixing screw 5 to connect the sensor 1 to the screw 6.

[0027] In a preferred embodiment, an upper contact 11 and a lower contact 13 are respectively provided inside the shell, and a spring bolt fixing nut 10 is provided at the top of the shell. When the screw 6 is loosened, the sensor 1 moves upward with the screw 6, and the distance between the sensor 1 and the gasket 3 increases. The spring bolt fixing nut 10 is adjusted, and the moving contact 12 contacts the lower contact 13 under the action of the spring, and K2 is turned on.

[0028] In a preferred embodiment, the detection mechanism 9 is connected to the upper software via a wireless signal through the communication module 7 , and the signal processing module 8 is used in conjunction with the detection mechanism 9 , and the signal processing module 8 transmits the state change signal detected by the detection mechanism 9 to the communication module 7 .

[0029] Working principle of the present invention:

[0030] When installing the screw 6, add the flat washer 3 and the spring washer 2. After tightening the screw, install the sensor 1 on the top of the screw 6, and tighten the fixing screw 5 to firmly connect the sensor 1 and the screw 6.

[0031] When the screw 6 is tightened or loosened, the detection state of the sensor 1 will change, and the sensor 1 transmits this state change to the upper software through a wireless signal, and the upper software sends a reminder message.

[0032] The sensor 1 includes a battery 4 , a communication module 7 , a signal processing module 8 , and a detection mechanism 9 .

[0033] The power consumption of the battery 4 is in the microwatt level, and the built-in battery can work continuously for more than 10 years, providing power to the communication module 7, the signal processing module 8, and the detection mechanism 9 of the sensor 1.

[0034] The communication module 7 transmits the state changes of the sensor to the upper software via wireless signals.

[0035] The data transmission between the sensor 1 and the upper software is completed through the communication module 7, 2.4GHz wireless sensor network (Bluetooth 5.0), visual communication distance of 300 meters, support remote wake-up, communication frequency and number can be set by software, reducing the communication frequency can extend the battery life.

[0036] The signal processing module 8 is used in conjunction with the detection mechanism 9, and the signal processing module 8 transmits the state change signal detected by the detection mechanism 9 to the communication module.

[0037] like Figure 3 As shown, the structure of the detection mechanism 9 includes a shell, a spring bolt fixing nut 10, an upper contact 11, a moving contact 12, a lower contact 13, a spring bolt 14, and a spring bolt adjusting nut 15. The detection mechanism 9 has two contacts, the upper contact 11 and the lower contact 13, and the moving contact 12 is on the middle spring bolt 14.

[0038] When the screw is tightened, the distance between sensor 1 and gasket 3 will decrease, spring bolt 14 will move upward, and moving contact 12 on spring bolt 14 will also move upward. Adjust spring bolt 14 and adjusting nut 15 to make moving contact 12 contact upper contact 11, and K1 will be turned on. Tighten fixing screw 5 to connect sensor 1 and screw 6.

[0039] When the screw 6 is loosened, the sensor 1 moves upward with the screw 6, and the distance between the sensor 1 and the gasket 3 increases. The spring bolt fixing nut 10 is adjusted, and the moving contact 12 contacts the lower contact 13 under the action of the spring, and K2 is turned on.

[0040] like Figure 4 As shown, the battery 4 provides power to the communication module 7, signal processing module 8 and detection mechanism 9 of the sensor. The moving contact 12 on the spring bolt 14 of the detection mechanism 9 is connected to the common terminal K0, K1 is connected to the upper contact 11, and K2 is connected to the lower contact 13. When the screw is tightened, K0 is connected to K1, and when the screw is loosened, K0 is connected to K2.

[0041] The function of the flat washer 3 is to support the spring bolt 14 and the spring washer 2 .

[0042] The function of the spring washer 2 is to give an upward force to the screw 6 when the screw 6 is loosened, so as to prevent the screw 6 from being loosened and causing a false detection due to the lack of supporting force and the downward movement of the screw 6.

[0043] How to use the screw 6 loose detection sensor 1:

[0044] When installing screw 1, first install spring washer 2 and flat washer 3 on screw 1, tighten screw 6, and put sensor 1 on nut. Figure 2 As shown, the spring bolt 14 extends out from the bottom of the sensor 1 and rests on the flat pad 3.

[0045] Loosen the nut to make the moving contact 12 contact with the lower contact 13, connect the circuits K0 and K1, and tighten the spring bolt to fix the nut 10.

[0046] Adjust the spring bolt and the nut 15 to make the moving contact 12 contact the upper contact 11, and the circuits K0 and K1 are connected. At this time, tighten the fixing screw 5 to make the sensor and the nut of the screw 6 tightly connected.

[0047] When the screw 6 is loosened, the spring washer 2 applies an upward force to the screw nut. When the screw 6 is loosened to a certain extent, the moving contact 12 contacts the upper contact 11, and the circuits K0 and K1 are connected. The sensor 1 sends a signal that the screw 6 is loose, notifying the staff to check and tighten the screw 6.

Claims

1. A device for detecting loose screws and bolts at important parts of a rail vehicle, comprising screws (6), characterized in that: A nut is arranged at the top end of the screw (6), and a sensor (1) is sleeved on the outer surface of the nut. The interior of the sensor (1) includes a battery (4), a communication module (7), a signal processing module (8) and a detection mechanism (9). The battery (4) provides power for the communication module (7), the signal processing module (8) and the detection mechanism (9).

2. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 1 is characterized in that: The outer surface of the screw (6) is located below the nut and is sleeved with a spring washer (2) and a flat washer (3) in sequence.

3. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 1, characterized in that: A fixing screw (5) is fixedly mounted on one side of the sensor (1), and the sensor (1) is fixedly mounted on the outer surface of the nut via the fixing screw (5).

4. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 1, characterized in that: The detection mechanism (9) comprises a housing and a spring bolt (14) arranged at the center of the housing, the outer surface of the spring bolt (14) is provided with a moving contact (12), and the outer surface of the spring bolt (14) is sleeved with a spring bolt adjustment nut (15).

5. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 4, characterized in that: An upper contact (11) and a lower contact (13) are respectively arranged inside the shell.

6. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 4, characterized in that: A spring bolt fixing nut (10) is arranged at the top end of the housing.

7. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 1, characterized in that: The detection mechanism (9) is connected to the upper software via a wireless signal via a communication module (7).

8. The device for detecting loose screws and bolts at important parts of a rail vehicle according to claim 1, characterized in that: The signal processing module (8) is used in conjunction with the detection mechanism (9), and the signal processing module (8) transmits the state change signal detected by the detection mechanism (9) to the communication module (7).

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