CN217156235U - Vehicle-mounted device for rail top friction detection - Google Patents
Vehicle-mounted device for rail top friction detection Download PDFInfo
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- CN217156235U CN217156235U CN202122574265.0U CN202122574265U CN217156235U CN 217156235 U CN217156235 U CN 217156235U CN 202122574265 U CN202122574265 U CN 202122574265U CN 217156235 U CN217156235 U CN 217156235U
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- steel rail
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Abstract
The utility model discloses an on-vehicle device for rail top friction detects, the device can walk on the railway by oneself or walk on the railway under traction state, the in-process of walking on the railway, can real-time detection noise and vibration condition, learn the friction situation at rail top promptly in real time, and whether need coat lubricating oil on this section rail according to the finding decision, and the volume of coating lubricating oil, thereby the frequency of opening of control nozzle, the nozzle all can be with the lubricating oil spraying of fixed quantity on the rail after opening at every turn, and accomplish the back at the spraying, on-vehicle device's rear wheel is through this oil spout position promptly, roll through the rear wheel, evenly scribble the lubricating oil of spraying on the rail, thereby accomplish and survey and the oil distribution work.
Description
Technical Field
The utility model relates to a lubricated technical field of rail, concretely relates to an on-vehicle device for railhead friction detects.
Background
The railway is one of five common transportation modes, is an important transportation infrastructure of the country and a tool for people to go out, and plays a very key role in economic construction and social development of China due to the advantages of high speed, good continuity, large transportation capacity, high safety and comfort, good economic benefit and the like.
In the high-speed running process of a train, the impact friction of wheels on a steel rail can cause wavy uneven abrasion on the surface of the steel rail, when the train passes through the abraded road section again, the abrasion degree of the train is further increased, strong vibration and impact are easily caused, noise is generated, and meanwhile, the friction effect between the train and the steel rail is also influenced, namely the friction coefficient is influenced;
some current processing methods include grinding the surface of a steel rail, and also include schemes of coating an oil film for changing a friction coefficient and the like, wherein in the scheme of coating the oil film, the existing scheme is to arrange a fixed oiling system on a section of a railway which is easy to wear, and continuously drip lubricating oil on the railway, but the scheme has great limitation and cannot consider all railway sections, if the oiling device is arranged on all the sections, the manufacturing cost is too high, auxiliary devices on a railway trunk line can be more complicated, and systematic risks are increased. Meanwhile, the lubricating oil must be added in a proper amount, and once the lubricating oil is added too much, grease can pollute the tread and the track bed of the steel rail, the braking distance of a train is influenced, and potential safety hazards are brought.
For the above reasons, the present inventors have made intensive studies on the existing rail head friction detecting apparatus, and have awaited the design of a rail head friction detecting apparatus capable of solving the above problems.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present inventors have conducted intensive research and have designed an on-vehicle device for rail top friction detection, which can be moved on a railway by itself or moved on a railway under a traction state, in the process of moving on a railway, noise and vibration can be detected in real time, namely, the friction condition at the top of a steel rail is known in real time, and whether lubricating oil needs to be coated on the section of the steel rail according to the detection result, and the amount of the lubricating oil is coated, thereby controlling the opening frequency of a nozzle, the nozzle can spray a fixed amount of lubricating oil on the steel rail after being opened at every time, and after the spraying is completed, the rear wheel of the on-vehicle device passes through the oil spraying position, the sprayed lubricating oil is uniformly coated on the steel rail through the rolling of the rear wheel, thereby completing the detection and oil distribution work, and completing the utility model discloses an on-vehicle device for rail top friction detection.
In particular, the utility model aims to provide a vehicle-mounted device for detecting rail top friction, which comprises a frame 1, wherein a front wheel 2 and a rear wheel 3 are arranged on the frame,
the front wheels 2 and the rear wheels 3 are arranged on the steel rail 4 and can roll on the steel rail to advance;
the frame 1 is also provided with a vibration detection unit 5, a noise detection unit 6 and an oiling device 7;
the corrugation of the top surface of the steel rail 4 is detected in real time through the vibration detection unit 5;
the noise detection unit 6 is used for detecting the noise generated by friction between the vehicle-mounted device and the steel rail 4 in real time;
and lubricating oil is dripped on the top surface of the steel rail 4 in front of the rear wheel 3 through an oiling device 7.
The vibration detection unit 5 and the noise detection unit 6 are electrically connected with the oiling device 7, and the oil outlet amount of the oiling device 7 is controlled according to the detection results of the vibration detection unit 5 and the noise detection unit 6.
Wherein the lubricating oil dropped by the oiling device 7 is coated on the top surface of the rail 4 through the rear wheel 3.
Wherein, the oiling device 7 comprises a spray head 71, an oil pump 72 and an oil tank which are connected in sequence through oil pipes,
the spray head 71 is fixed on the frame 1 and is adjacent to the top surface of the steel rail 4.
Wherein, a plurality of nozzles are arranged on the spray head 71,
the plurality of nozzles are arranged in two rows along the extending direction of the steel rail.
And the middle nozzles are positioned above the middle part of the steel rail 4 in the two rows of nozzles, and the edge nozzles are positioned above the inner side edge of the steel rail 4.
Wherein the nozzle ejects a fixed amount of lubricating oil each time it is opened,
the nozzle and the oil pump 72 are connected to the vibration detection unit 5 and the noise detection unit 6, and the opening frequency of the nozzle is controlled by information obtained by detection of the vibration detection unit 5 and the noise detection unit 6.
The utility model discloses the beneficial effect who has includes:
(1) according to the utility model provides a vehicle-mounted device for rail top friction detects can survey in real time and obtain the rail top friction situation of rail that passes through at present to judge the volume of coating lubricating oil, avoid omitting also to place lubricating oil excessive;
(2) according to the utility model provides an on-vehicle device for rail top friction detects can remove along the railway line wantonly to realize the short-term test fat liquoring of many highway sections, work efficiency is high, and the flexibility is good.
Drawings
Fig. 1 is a schematic view showing an overall structure of an on-vehicle device for rail head friction detection according to a preferred embodiment of the present invention;
fig. 2 is a schematic view showing an overall structure of an on-vehicle device for rail head friction detection according to a preferred embodiment of the present invention;
fig. 3 shows a schematic side structure diagram of an on-board device for rail top friction detection according to a preferred embodiment of the present invention.
The reference numbers illustrate:
1-frame
2-front wheel
3-rear wheel
4-rail
5-vibration detecting unit
6-noise detection unit
7-oiling station
71-spray head
72-oil pump
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. The features and advantages of the present invention will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
According to the present invention, as shown in fig. 1, 2 and 3, the vehicle-mounted device for rail top friction detection comprises a frame 1, on which front wheels 2 and rear wheels 3 are provided,
the front wheels 2 and the rear wheels 3 are arranged on the steel rail 4 and can roll on the steel rail to advance; the middle parts of the front wheels 2 and the rear wheels 3 are respectively abutted and placed on the tops of the steel rails, preferably, at least two front wheels 2 are arranged, at least two rear wheels 3 are also arranged, the two front wheels 2 are respectively positioned on the tops of the two steel rails, and the distance between the two front wheels 2 is consistent with the distance between the two wheels in the same row on the train; the front wheels 2 and the rear wheels 3 not only play a role in supporting and walking, but also have a friction collision with the steel rail to generate vibration, so that the front wheels are detected by a subsequent detector to obtain the friction condition of the steel rail, and the rear wheels are also used for smearing lubricating oil.
Preferably, the front wheels 2 and the rear wheels 3 are similar in external dimensions to those of a railway wheel, and are provided on the inside with rims, which can also be used to apply lubricant to the inside of the rail head, in order to ensure the stability of the device when moving along the rail.
The frame 1 is also provided with a vibration detection unit 5, a noise detection unit 6 and an oiling device 7;
the corrugation of the top surface of the steel rail 4 is detected in real time through the vibration detection unit 5, namely the friction condition of the top surface of the steel rail 4 is detected; the vibration detection unit 5 is a non-contact vibration detector, such as an infrared sensor or a laser sensor, and as an implementation scheme, a Nova series laser vibrometer of tianjin force science and technology limited may be selected.
The noise detection unit 6 is used for detecting the noise generated by friction between the vehicle-mounted device and the steel rail 4 in real time; and giving a specific noise decibel value in real time.
Preferably, during the operation of the vehicle-mounted device, the vibration detection unit 5 and the noise detection unit 6 are simultaneously and fixedly installed right above the steel rail through the frame 1, so as to timely and accurately detect and obtain the friction condition of the surface of the steel rail.
Lubricating oil is dripped on the top surface of the steel rail 4 in front of the rear wheel 3 through an oiling device 7. The lubricating oil can form an oil film on the surface of the steel rail, so that the friction coefficient between the steel rail and a train wheel is adjusted, the abrasion is reduced, and the safety and the stability of the train are ensured.
In a preferred embodiment, the vibration detection unit 5 and the noise detection unit 6 are both electrically connected with the oiling device 7, and the oil outlet amount of the oiling device 7 is controlled according to the detection results of the vibration detection unit 5 and the noise detection unit 6.
Preferably, the vehicle-mounted device for detecting rail top friction is further provided with a computing chip, the computing chip can receive vibration information obtained by the vibration detection unit 5 and noise values obtained by the noise detection unit 6, and combines preset judgment conditions to judge the current rail wear condition and calculate the optimal oil coating amount, so as to control the oil output amount of the oil coating device 7.
In a preferred embodiment, the lubricant oil dropped by the oiling device 7 is applied to the top surface of the rail 4 through the rear wheel 3. The oiling device 7 comprises a spray head 71, an oil pump 72 and an oil tank which are sequentially connected through oil pipes,
the spray head 71 is fixed on the frame 1 and is adjacent to the top surface of the steel rail 4.
The height difference between the lower end of the spray head of the oiling device 7 and the steel rail is small and is generally controlled within 2cm, and the minimum distance between the rear wheel and the spray head is generally controlled within 3cm, so that lubricating oil just drops on the steel rail and is rolled by the rear wheel under the condition that the lubricating oil does not flow in time, and the lubricating oil is uniformly coated on the upper surface of the steel rail.
In a preferred embodiment, the spray head 71 is provided with a plurality of nozzles, and the plurality of nozzles are arranged in two rows along the extension direction of the steel rail.
Preferably, the nozzles in the two rows are positioned above the middle of the steel rail 4 and are middle nozzles, and the nozzles positioned above the inner side edge of the steel rail 4 are edge nozzles. The middle nozzle mainly sprays lubricating oil on the middle of the top surface of the steel rail to form an oil film on the top of the steel rail, and the edge nozzle mainly sprays the lubricating oil on the inner side surface of the rail head of the steel rail to form the oil film.
In a preferred embodiment, the nozzle sprays a fixed amount of lubricating oil each time the nozzle is opened, and the specific oil amount can be set at random, depending on factors such as the university of the nozzle and the time of each opening.
The nozzle and the oil pump 72 are connected with the vibration detection unit 5 and the noise detection unit 6, the opening frequency of the nozzle is controlled through information obtained by detection of the vibration detection unit 5 and the noise detection unit 6, when the opening frequency is high, the formed oil film is thick, when the opening frequency is low, the formed oil film is thin, and when the opening frequency is zero, the oil film is not formed; therefore, an oil film with a preset thickness is formed on the steel rail, namely omission can be avoided, the oil film is coated at each position needing to be coated, and pollution caused by overlarge oil quantity can be prevented.
The vehicle-mounted device for rail top friction detection can be added with the power mechanism to drive the vehicle-mounted device to move along a steel rail and detect and distribute oil on the surface of the steel rail passing by the vehicle-mounted device, or the vehicle-mounted device can be hung on a normal train or a locomotive without the power mechanism, and can detect and distribute oil on the surface of the passing steel rail.
The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.
Claims (7)
1. A vehicle-mounted device for detecting rail top friction is characterized by comprising a frame (1), wherein a front wheel (2) and a rear wheel (3) are arranged on the frame,
the front wheels (2) and the rear wheels (3) are arranged on the steel rail (4) and can roll on the steel rail to advance;
the rack (1) is also provided with a vibration detection unit (5), a noise detection unit (6) and an oiling device (7);
the corrugation of the top surface of the steel rail (4) is detected in real time through the vibration detection unit (5);
the noise generated by friction between the vehicle-mounted device and the steel rail (4) is detected in real time through the noise detection unit (6);
and lubricating oil is dripped on the top surface of the steel rail (4) in front of the rear wheel (3) through an oiling device (7).
2. The on-board unit for rail head friction detection according to claim 1,
the vibration detection unit (5) and the noise detection unit (6) are electrically connected with the oiling device (7), and the oil outlet amount of the oiling device (7) is controlled according to the detection results of the vibration detection unit (5) and the noise detection unit (6).
3. The on-board unit for rail head friction detection according to claim 1,
and lubricating oil dripped by the oiling device (7) is coated on the top surface of the steel rail (4) through the rear wheel (3).
4. The on-board unit for rail head friction detection according to claim 1,
the oiling device (7) comprises a spray head (71), an oil pump (72) and an oil tank which are sequentially connected through oil pipes,
the spray head (71) is fixed on the rack (1) and is close to the top surface of the steel rail (4).
5. The on-board unit for rail head friction detection according to claim 4,
a plurality of nozzles are arranged on the spray head (71),
the plurality of nozzles are arranged in two rows along the extending direction of the steel rail.
6. The on-board unit for rail head friction detection according to claim 5,
the middle nozzles are positioned above the middle of the steel rail (4) in the two rows of nozzles, and the edge nozzles are positioned above the inner side edge of the steel rail (4).
7. The on-board unit for rail head friction detection according to claim 5,
the nozzle ejects a fixed amount of lubricating oil each time it is opened,
the nozzle and the oil pump (72) are connected with the vibration detection unit (5) and the noise detection unit (6), and the opening frequency of the nozzle is controlled through information obtained by detection of the vibration detection unit (5) and the noise detection unit (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122574265.0U CN217156235U (en) | 2021-10-25 | 2021-10-25 | Vehicle-mounted device for rail top friction detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122574265.0U CN217156235U (en) | 2021-10-25 | 2021-10-25 | Vehicle-mounted device for rail top friction detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217156235U true CN217156235U (en) | 2022-08-09 |
Family
ID=82660251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122574265.0U Active CN217156235U (en) | 2021-10-25 | 2021-10-25 | Vehicle-mounted device for rail top friction detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217156235U (en) |
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2021
- 2021-10-25 CN CN202122574265.0U patent/CN217156235U/en active Active
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