A calibration device for a wheel set abrasion detection device

Abstract

The present invention relates to the field of train operation safety guarantee systems, and particularly to a calibration device for a wheel set abrasion detection device, which comprises a cross beam, a movable buckle, a fixed buckle, an adjustment mechanism and a pressing mechanism; the movable buckle is rotatably connected to one end of the cross beam; the fixed buckle is fixedly connected to the other end of the cross beam; the movable buckle and the fixed buckle are used for being clamped to the two side rails of the track; the adjustment mechanism is used for adjusting the rotation posture of the movable buckle; the pressing mechanism is used for applying a downward pressure to the wheel set abrasion detection device. The present invention simulates the downward pressure of the wheel on the abrasion rod through the pressing mechanism, so as to calibrate the data after the abrasion rod is pressed. Since the pressing mechanism is installed on the cross beam, and the cross beam is fixed on the track through the fixed buckle and the movable buckle, therefore, the pressing mechanism has a firm installation foundation, can apply a large downward pressure to the abrasion rod, is more accurate during calibration, and thus has higher calibration accuracy and higher efficiency.

Description

Technical Field

[0001] The present invention relates to the field of train operation safety guarantee systems, and particularly to a calibration device for a wheel set abrasion detection device. Background Art

[0002] The wheel set is a main component of the running gear of locomotives and rolling stock. The wheel set not only bears the entire weight of the train, but also transmits the forces between the train and the rail. Its technical state directly affects the running quality of the vehicle and the running safety of the train. During operation, the wheel set continuously rubs against the rail surface, resulting in wear of the wheel tread; in addition, when the wheel set passes through a curve or a turnout, the wheel flange part of the wheel set rubs against the inner side of the rail, causing wear of the tread and the wheel flange, which will lead to a change in the external dimensions of the wheel set. Therefore, it is necessary to conduct daily dynamic detection of the train wheel dimensions, master the condition of the wheel set, and eliminate potential accident hazards.

[0003] Domestic detection equipment for wheel quality is usually installed on the EMU storage line for detection when the EMU passes at a low speed. As one of the most important contents in the detection link of the wheel tread abrasion, whether it can be detected timely and accurately is particularly important. For the detection of wheel tread abrasion at low speeds, there are various methods at home and abroad, each with its own disadvantages. The current mainstream technology adopts the contact measurement method, in which the measurement device is in direct contact with the wheel. For example, Chinese Patent CN205273501U discloses a wheel contact type tread defect detection device, which includes an abrasion rod that will move down after being pressed by the wheel. The displacement sensor is used to detect the downward movement distance of the abrasion rod to reflect whether the wheel has a tread defect, and the spring is used for resetting.

[0004] In order to ensure the detection accuracy of the defect detection equipment, it is necessary to calibrate the defect detection equipment in advance. The existing calibration tooling is generally C-shaped. By holding the base of the detection equipment and pressing the abrasion rod from above, the equipment is calibrated. However, the spring force it can overcome is limited. At the same time, during the calibration process, the calibration tooling will move, affecting the calibration accuracy and efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a calibration device for a wheel set abrasion detection device, aiming to improve the calibration accuracy and efficiency of the wheel set abrasion detection device.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A calibration device for a wheel set abrasion detection device, comprising a cross beam, a movable buckle, a fixed buckle, an adjustment mechanism and a pressing mechanism; the movable buckle has a rotational freedom and is rotatably connected to one end of the cross beam; the fixed buckle is fixedly connected to the other end of the cross beam; the movable buckle and the fixed buckle are used to be clamped on both sides of the rails of the track; the adjustment mechanism is arranged on the cross beam near the movable buckle; the adjustment mechanism is used to adjust the rotational attitude of the movable buckle; the pressing mechanism is arranged on the cross beam near the fixed buckle; the pressing mechanism is used to apply a downward pressure to the wheel set abrasion detection device.

[0008] In some embodiments, it further includes an insulating backing plate; the cross beam includes a first cross beam and a second cross beam; the movable buckle and the adjustment mechanism are arranged on the first cross beam; the fixed buckle and the pressing mechanism are arranged on the second cross beam; the insulating backing plate is connected between the first cross beam and the second cross beam so that current cannot conduct between the first cross beam and the second cross beam.

[0009] In some embodiments, it further includes a connecting piece and an insulating bushing; one end of the first cross beam for connecting with the second cross beam has a first connecting disc; one end of the second cross beam for connecting with the first cross beam has a second connecting disc; the insulating backing plate is arranged between the first connecting disc and the second connecting disc; several connecting pieces simultaneously penetrate through the first connecting disc, the second connecting disc and the insulating backing plate and then connect the three into one body; the insulating bushing is sleeved on the connecting piece to separate the contact between the connecting piece and the first connecting disc, the second connecting disc and the insulating backing plate.

[0010] In some embodiments, it further includes an elastic member; the elastic member is connected between the movable buckle and the cross beam; the elastic member is used to urge the movable buckle to disengage from the rail.

[0011] In some embodiments, the adjustment mechanism includes an adjustment screw; the adjustment screw is screwed on the cross beam; the lower end of the adjustment screw is used to abut against the movable buckle; during the process of rotating the adjustment screw to make it descend, the lower end of the adjustment screw pushes the movable buckle to lock the rail.

[0012] In some embodiments, the adjustment mechanism further includes a force applying rod; the force applying rod is vertically connected to the upper end of the adjustment screw.

[0013] In some embodiments, the pressing mechanism includes a pressing screw; the pressing screw is screwed on the cross beam.

[0014] In some embodiments, the pressing mechanism further includes a force applying rod; the force applying rod is vertically connected to the upper end of the pressing screw.

[0015] In some embodiments, the pressing mechanism further includes a backing plate; the backing plate is connected to the lower end of the pressing screw.

[0016] In some embodiments, it further includes a handle; the handle is connected to the cross beam.

[0017] In summary, compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention simulates the downward pressure of the wheel on the abrasion rod through the pressing mechanism, so as to calibrate the data after the abrasion rod is pressed. Since the pressing mechanism is installed on the cross beam, and the cross beam is fixed on the track through the fixed buckle and the movable buckle, therefore, the pressing mechanism has a firm installation foundation, can apply a large downward pressure to the abrasion rod, and is more accurate during calibration, so its calibration accuracy is higher. Since there is no need to worry about the movement of the calibration device during the calibration process, the entire calibration process is more concise and fast, thereby improving the calibration efficiency. Brief Description of the Drawings

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

[0019] Figure 2 is Figure 1 an enlarged structural diagram of area A in

[0020] The interpretations of the reference numerals in the figure are as follows: force applying rod 1, adjusting screw 2, rotating shaft 3, elastic member 4, movable buckle 5, first cross beam 6, handle 7, second cross beam 8, force applying rod 9, pressing screw 10, backing plate 11, fixed buckle 12, connecting member 13, insulating bushing 14, insulating backing plate 15, first connection disk 16, second connection disk 17. Detailed Embodiments

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with specific embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship involved, such as up, down, front, back, left, right, etc., indicates the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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 to the present invention.

[0023] In the description of the present invention, "a number of" means one or more, "a plurality of" means more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, while understandings such as "above", "below", "within", etc. include the base number. If there are descriptions of similar terms such as "first", "second", etc., they are only used to distinguish 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.

[0024] In the description of the present invention, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0025] As Figure 1 shown, a calibration device for a wheel set abrasion detection device described in an embodiment of the present application includes a cross beam, a movable buckle 5, a fixed buckle 12, an adjustment mechanism, and a pressing mechanism.

[0026] Among them, the cross beam can be made of a high-strength non-metallic material, such as wood, or can also be made of a metal material, such as a channel steel.

[0027] A movable buckle 5 is rotatably connected to one end of the cross beam. The movable buckle 5 has a rotational degree of freedom and can freely rotate on the cross beam to adjust its posture. The movable buckle 5 can be connected to the cross beam through a rotating shaft 3. A fixed buckle 12 is fixedly connected to the other end of the cross beam, and the position of the fixed buckle 12 on the cross beam is fixed and cannot be changed. The movable buckle 5 and the fixed buckle 12 are used to be clamped to the two side rails of the track. For example, the fixed buckle 12 is clamped to the right rail, and the movable buckle 5 is clamped to the left rail. In this way, the cross beam can be firmly fixed on the track to prevent the entire device from moving during calibration.

[0028] The adjustment mechanism is arranged on the cross beam near the movable buckle 5, and the adjustment mechanism is used to adjust the rotational posture of the movable buckle 5. For example, the movable buckle 5 is tightened against the rail through the adjustment mechanism. The pressing mechanism is arranged on the cross beam near the fixed buckle 12, and the pressing mechanism is used to apply a downward pressure to the wheel set abrasion detection device to simulate the downward pressing action of the wheel on the abrasion rod of the wheel set abrasion detection device.

[0029] In the embodiment of the present application, the wheel set bruise detection device to be calibrated is installed on the inner or outer side of the track. When a vehicle comes, the wheel will contact the bruise rod of the wheel set bruise detection device. In the embodiment of the present application, the downward pressing mechanism is used to simulate the downward pressing of the wheel on the bruise rod, so as to calibrate the data after the bruise rod is pressed. Since the downward pressing mechanism is installed on the cross beam, and the cross beam is fixed on the track through the fixed buckle 12 and the movable buckle 5, the downward pressing mechanism has a firm installation foundation, can apply a large downward pressure to the bruise rod, and is more accurate during calibration, so its calibration accuracy is higher. Since there is no need to worry about the movement of the calibration device during the calibration process, the entire calibration process is more concise and fast, thus improving the calibration efficiency.

[0030] To ensure strength, the cross beam is usually made of metal material. Since the cross beam spans the rails on both sides of the track, if the cross beam conducts the rails on both sides of the track, it will cause an alarm in the railway system and it will be considered that there is a vehicle running on the track. And the calibration of the wheel set bruise detection device is carried out during the skylight period when there is no vehicle running. To avoid false alarms in the railway system, it is necessary to make the rails on both sides of the track non-conductive. For this purpose, in the embodiment of the present application, the cross beam can also be set as a segmented structure, and an insulating part is added at their connection to block the conduction of the rails on both sides of the track. For example, the cross beam can be divided into a first cross beam 6 and a second cross beam 8, and the movable buckle 5 and the adjustment mechanism are arranged on the first cross beam 6, and the fixed buckle 12 and the downward pressing mechanism are arranged on the second cross beam 8. Then an insulating pad 15 is connected between the first cross beam 6 and the second cross beam 8 to prevent current from conducting between the first cross beam 6 and the second cross beam 8. In this way, when using the embodiment of the present application to calibrate the wheel set bruise detection device during the skylight time, the railway system alarm will no longer be triggered. At the same time, splitting the cross beam into the first cross beam 6 and the second cross beam 8 is also beneficial for transportation and storage.

[0031] For the specific connection method between the first crossbeam 6 and the second crossbeam 8, the following structure can be adopted: at one end of the first crossbeam 6 for connecting with the second crossbeam 8, a first connection plate 16 is provided, and at one end of the second crossbeam 8 for connecting with the first crossbeam 6, a second connection plate 17 is provided. The insulating cushion plate 15 is clamped between the first connection plate 16 and the second connection plate 17. A number of connecting pieces 13 wrapped with insulating bushings 14 are used to penetrate through the first connection plate 16, the second connection plate 17 and the insulating cushion plate 15 at the same time and then connect the three into one body to ensure the connection strength. For the convenience of the connecting piece 13 to pass through, corresponding through holes can be opened at the corresponding positions on the first connection plate 16, the second connection plate 17 and the insulating cushion plate 15. The insulating bushing 14 can separate the contact between the connecting piece 13 and the first connection plate 16, the second connection plate 17 and the insulating cushion plate 15, so as to prevent conduction between the first connection plate 16 and the second connection plate 17 through the connecting piece 13. The connecting piece 13 can use fasteners such as bolts, and the insulating bushing 14 can be made of insulating materials such as rubber and resin.

[0032] To further improve the usability of the embodiment of the present application, an elastic member 4 can be additionally provided between the movable buckle 5 and the crossbeam. The elastic member 4 is used to urge the movable buckle 5 to disengage from the rail. The elastic member 4 can be selected from elastic elements such as springs and rubber bands. For example, assuming that the movable buckle 5 rotates counterclockwise to clamp the rail, then, during the clamping process, the counterclockwise rotating movable buckle 5 will compress the elastic member 4 and store elastic force in it. When it is necessary to disassemble the embodiment of the present application after calibration, the compressed elastic member 4 can provide a clockwise elastic force to the movable buckle 5, so that the movable buckle 5 can be more easily disengaged from the rail.

[0033] In order to enable the movable buckle 5 to firmly clamp the rail, the adjustment mechanism described in the embodiment of the present application may include an adjustment screw 2. The adjustment screw 2 is vertically screwed on the crossbeam. The lower end of the adjustment screw 2 is used to abut against the movable buckle 5. During the process of rotating the adjustment screw 2 to make it descend, the lower end of the adjustment screw 2 pushes the movable buckle 5 to rotate counterclockwise to lock the rail. After the movable buckle 5 locks the rail, the adjustment screw 2 always abuts against the movable buckle 5 to prevent it from rotating clockwise, thereby locking the position of the movable buckle 5. To facilitate the rotation of the adjustment screw 2, a force-applying rod 1 perpendicular to the adjustment screw 2 can be connected to the upper end of the adjustment screw 2 to save the force required to rotate the adjustment screw 2.

[0034] The pressing mechanism may include a vertically arranged pressing screw rod 10, which is screwed onto the cross beam. During the process of rotating the pressing screw rod 10 to make it descend, the lower end of the pressing screw rod 10 squeezes the abrasion rod to descend, simulating the pressing action of the wheel on the abrasion rod of the wheel set abrasion detection device. Correspondingly, in order to save the rotational force required to rotate the pressing screw rod 10, a force applying rod 9 perpendicular to the pressing screw rod 10 may also be connected to the upper end of the pressing screw rod 10.

[0035] In order to avoid the lower end of the pressing screw rod 10 from damaging the surface of the abrasion rod, a backing plate 11 may also be connected to the lower end of the pressing screw rod 10 to increase the contact area between the lower end of the pressing screw rod 10 and the abrasion rod, thereby reducing the possibility of the abrasion rod being damaged.

[0036] The embodiment of the present application may also connect a handle 7 to the cross beam to facilitate the extraction or handling of the entire calibration device.

[0037] The technical features of the above 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.

[0038] The above preferred embodiments should not be regarded as limitations of 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 of this technology, without departing from the spirit and scope of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A calibration device for a wheel set abrasion detection device, characterized in that: It includes a cross beam, a movable buckle (5), a fixed buckle (12), an adjustment mechanism and a downward pressure mechanism; The movable buckle (5) has a rotational freedom and is rotatably connected to one end of the cross beam; The fixed buckle (12) is fixedly connected to the other end of the cross beam; The movable buckle (5) and the fixed buckle (12) are used to be clamped to the two side rails of the track; the cross beam is fixed on the track through the movable buckle (5) and the fixed buckle (12); The adjustment mechanism is arranged on the cross beam near the movable buckle (5); the adjustment mechanism is used to adjust the rotational posture of the movable buckle (5); The downward pressure mechanism is arranged on the cross beam near the fixed buckle (12); the downward pressure mechanism is used to apply a downward pressure to the abrasion rod of the wheel set abrasion detection device.

2. The calibration device for a wheel set abrasion detection device according to claim 1, characterized in that: It further includes an insulating spacer (15); the cross beam includes a first cross beam (6) and a second cross beam (8); the movable buckle (5) and the adjustment mechanism are arranged on the first cross beam (6); the fixed buckle (12) and the downward pressure mechanism are arranged on the second cross beam (8); the insulating spacer (15) is connected between the first cross beam (6) and the second cross beam (8) so that current cannot conduct between the first cross beam (6) and the second cross beam (8).

3. The calibration device for a wheel set abrasion detection device according to claim 2, characterized in that: It further includes a connecting piece (13) and an insulating bushing (14); one end of the first cross beam (6) for connecting with the second cross beam (8) has a first connection disc (16); one end of the second cross beam (8) for connecting with the first cross beam (6) has a second connection disc (17); the insulating spacer (15) is arranged between the first connection disc (16) and the second connection disc (17); several connecting pieces (13) simultaneously penetrate through the first connection disc (16), the second connection disc (17) and the insulating spacer (15) and then connect the three into one body; the insulating bushing (14) is sleeved on the connecting piece (13) to separate the contact between the connecting piece (13) and the first connection disc (16), the second connection disc (17) and the insulating spacer (15).

4. A calibration device for a wheel set abrasion detection device according to claim 1, characterized in that: It further includes an elastic member (4); the elastic member (4) is connected between the movable buckle (5) and the cross beam; the elastic member (4) is used to urge the movable buckle (5) to disengage from the rail.

5. A calibration device for a wheel set abrasion detection device according to claim 1, characterized in that: The adjustment mechanism includes an adjustment screw (2); the adjustment screw (2) is screwed on the cross beam; the lower end of the adjustment screw (2) is used to abut against the movable buckle (5); during the process of rotating the adjustment screw (2) to make it descend, the lower end of the adjustment screw (2) pushes the movable buckle (5) to lock the rail.

6. The calibration device for a wheel set abrasion detection device according to claim 5, characterized in that: The adjustment mechanism further includes a force applying rod (1); the force applying rod (1) is vertically connected to the upper end of the adjustment screw (2).

7. A calibration device for a wheel set abrasion detection device according to claim 1, characterized in that: The downward pressure mechanism includes a downward pressure screw (10); the downward pressure screw (10) is screwed on the cross beam.

8. A calibration device for a wheel set abrasion detection device according to claim 7, characterized in that: The downward pressure mechanism further includes a force applying rod (9); the force applying rod (9) is vertically connected to the upper end of the downward pressure screw (10).

9. A calibration device for a wheel set abrasion detection device according to claim 7, characterized in that: The pressing mechanism further includes a backing plate (11); the backing plate (11) is connected to the lower end of the pressing screw (10).

10. The calibration device for a wheel set abrasion detection device according to claim 1, characterized in that: It further includes a handle (7); the handle (7) is connected to the cross beam.

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