CN208042941U - Way rub amount detecting device - Google Patents

Abstract

The utility model discloses a guide rail wear amount detection device, which comprises a beam and a vertical beam, a measuring device is installed under the beam, and a positioning device is installed on the vertical beam; the measuring device includes a measuring roller and a compression spring, and the measuring roller is fixed on a roller frame Above, the compression spring is installed between the roller frame and the crossbeam, the roller frame is provided with a vertical lifting column, the beam is provided with a through hole with a diameter larger than the lifting column, and the lifting column passes through the through hole; the roller frame is close to One side of the vertical beam is provided with a horizontal pointer, and the vertical beam is provided with a slot hole matched with the pointer, the pointer passes through the slot hole, and a scale is provided on the outside of the vertical beam close to the slot hole; The second positioning wheel, the axis of the first positioning wheel is parallel to the side surface of the rail head, the second positioning wheel is located below the first positioning wheel, and the axis of the second positioning wheel is parallel to the bottom surface of the rail head of the guide rail. The thickness and thickness variation of the derailment head can be measured conveniently and accurately, and it is easy to carry.

Description

Rail wear detection device

technical field

The utility model relates to a detection device, in particular to a detection device for guide rail wear, which belongs to the field of rail transportation.

Background technique

The guide rails of existing trains, subways, etc. are generally I-shaped guide rails, which are composed of a rail head, a rail waist and a rail bottom. Due to the interaction between the locomotive wheel and the guide rail for a long time, after the guide rail track has been used for a period of time, the wear on the top surface increases, resulting in wavy wear or vertical wear on the upper surface of the guide rail head. When wavy wear occurs, that is, the upper surface of the rail head is wavy, and the vibration of the locomotive increases when running; when vertical wear occurs, the thickness of the guide rail head decreases and the strength decreases, which is prone to safety accidents. Therefore, when the rail head wears to a certain extent, it needs to be replaced with a new guide rail. In order to quantify the degree of wear of the rail head, it is necessary to measure the thickness of the rail head; since the rail head is of irregular shape, it is time-consuming and laborious to measure directly with a ruler, and the accuracy is low and the error is large.

Contents of the invention

The purpose of the utility model is to provide a detection device for guide rail wear, which can conveniently and accurately measure the thickness and thickness variation of the derailment head, and is easy to carry.

In order to achieve the above purpose, the guide rail wear detection device adopted by the utility model includes a beam and a vertical beam, a measuring device is installed under the beam, and a positioning device is installed on the vertical beam;

Described measuring device comprises measuring roller, compression spring, and this measuring roller is fixed on the roller frame, and described compression spring is installed between this roller frame and described beam, and described roller frame is provided with vertical lifting column, and beam A through hole with a diameter larger than that of the lifting column is provided on the roller frame, and the lifting column passes through the through hole; a horizontal pointer is provided on the side of the roller frame close to the vertical beam, and a groove matching the pointer is provided on the vertical beam hole, the pointer passes through the slot, and the outer side of the vertical beam is provided with a scale near the slot;

The positioning device includes a first positioning wheel and a second positioning wheel, the axis of the first positioning wheel is parallel to the rail head side, the second positioning wheel is located below the first positioning wheel, and the axis of the second positioning wheel Parallel to the bottom surface of the rail head.

Further, the measuring roller, the first positioning wheel and the second positioning wheel are made of rigid materials.

Preferably, the surface of the measuring roller, the first positioning wheel and the second positioning wheel is coated with an anti-slip coating.

Further, a handle is also included, and the handle is fixed on the top of the vertical beam.

Further, a protruding ring with a diameter larger than the through hole is provided on the lifting column, and the protruding ring is located above the crossbeam.

When using this device to measure the thickness of the rail head, lift the lifting column upwards, then attach the first positioning wheel to the side of the rail head, and attach the second positioning wheel to the bottom surface of the rail head to perform positioning, then loosen the lifting column and measure the rollers Under the action of the compression spring, it is close to the upper surface of the rail head; there is a pointer on the roller frame of the measuring roller, and the device is moved back and forth along the guide rail. When the thickness of the rail head changes, the roller frame moves up and down, thereby driving the pointer to move up and down. The pointer is used to measure the thickness change of the guide rail in real time; the device has a simple structure, is easy to carry, and is easy to use.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Among the figure: 1. beam, 11. through hole, 2. lifting column, 21. protruding ring, 3. compression spring, 4. measuring roller, 41. roller frame, 5. rail head, 6. positioning device, 61. No. One positioning wheel, 62. the second positioning wheel, 7. vertical beam, 71. slotted hole, 8. pointer, 81. scale, 9. handle.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the guide rail wear detection device includes a beam 1 and a vertical beam 7, a measuring device is installed under the beam 1, and a positioning device 6 is installed on the vertical beam 7;

Measuring device comprises measuring roller 4, compression spring 3, and this measuring roller 4 is fixed on the roller frame 41, and compression spring 3 is installed between this roller frame 41 and crossbeam 1, and roller frame 41 is provided with vertical lifting column 2, The crossbeam 1 is provided with a through hole 11 whose diameter is larger than the lifting column 2, and the lifting column 2 passes through the through hole 11; the side of the roller frame 41 near the vertical beam 7 is provided with a horizontal pointer 8, and the vertical beam 7 is provided with a horizontal pointer 8. The slot hole 71 matched with the pointer 8, the pointer 8 passes through the slot hole 71, and the outside of the vertical beam 7 is provided with a scale 81 close to the slot hole 71;

The positioning device 6 includes a first positioning wheel 61 and a second positioning wheel 62, the axis of the first positioning wheel 61 is parallel to the side of the guide rail head 5, the second positioning wheel 62 is located below the first positioning wheel 61, and the second positioning wheel 61 The axle of wheel 62 is parallel with guide rail head 5 bottom surfaces.

As shown in Figure 1, when using this device to measure the thickness of the rail head 5, the lifting column 2 is lifted up, and then the first positioning wheel 61 is attached to the side of the rail head 5, and the second positioning wheel 62 is attached to the bottom surface of the rail head 5, Thereby positioning, then loosen the lifting column 2, the measuring roller 4 is close to the upper surface of the rail head 5 under the action of the compression spring 3; the roller frame 41 of the measuring roller 4 is provided with a pointer 8, and the device is moved forward and backward along the guide rail , when the thickness of the rail head 5 changes, the roller frame 41 moves up and down, thereby driving the pointer 8 to move up and down, so that the pointer 8 can measure the thickness change of the guide rail in real time; the device is simple in structure, easy to carry and easy to use.

In order to prevent measurement errors due to the deformation of the measuring roller 4, the first positioning wheel 61, the second positioning wheel 62, etc., further, the measuring roller 4, the first positioning wheel 61, and the second positioning wheel 62 are made of rigid materials , such as can be made of rigid plastic or metal.

In order to prevent the measuring roller 4, the first positioning wheel 61, and the second positioning wheel 62 from contacting with the guide rail, the frictional force is small to generate sliding friction, thereby causing the measuring roller 4, the first positioning wheel 61, and the second positioning wheel 62 to wear , and then therefore measure the error, preferably, the measuring roller 4, the first positioning wheel 61, the second positioning wheel 62 are coated with an anti-skid coating, when moving the device back and forth along the guide rail, the measuring roller 4, the first positioning wheel 61 , The second positioning wheel 62 all produces rolling friction with the rail head 5, which reduces wear and tear.

In order to make the device more convenient and practical, further, the device also includes a handle 9, which is fixed on the top of the vertical beam 7, and the user can use the device to measure by holding the handle 9.

In order not to use the device, the measuring roller 4 is far away from the beam 1 under the force of the compression spring 3, so that the lifting column 2 leaves the through hole 11, and further, the lifting column 2 is provided with a protrusion with a diameter larger than the through hole 11. Ring 21, the protruding ring 21 is located above the beam 1, thereby limiting the vertical displacement of the measuring roller 4, and also protecting the device to a certain extent.

Claims (5)

1. The guide rail wear detection device is characterized in that: it comprises a beam (1) and a vertical beam (7), a measuring device is installed under the beam (1), and a positioning device (6) is installed on the vertical beam (7); Described measuring device comprises measuring roller (4), compression spring (3), and this measuring roller (4) is fixed on the roller frame (41), and described compression spring (3) is installed on this roller frame (41) and described Between the beams (1), the roller frame (41) is provided with a vertical lifting column (2), and the beam (1) is provided with a through hole (11) whose diameter is larger than the lifting column (2). The lifting column (2) passes through the through hole (11); the side of the roller frame (41) near the vertical beam (7) is provided with a horizontal pointer (8), and the vertical beam (7) is provided with a A slot (71) for the pointer (8), the pointer (8) passes through the slot (71), and the outer side of the vertical beam (7) is provided with a scale (81) near the slot (71); The positioning device (6) comprises a first positioning wheel (61) and a second positioning wheel (62). (62) is located below the first positioning wheel (61), and the axis of the second positioning wheel (62) is parallel to the bottom surface of the rail head (5). 2. The detection device for guide rail wear according to claim 1, characterized in that: the measuring roller (4), the first positioning wheel (61), and the second positioning wheel (62) are made of rigid materials. 3. The detection device for guide rail wear according to claim 2, characterized in that: the surface of the measuring roller (4), the first positioning wheel (61), and the second positioning wheel (62) is coated with an anti-slip coating. 4. The detection device for guide rail wear according to claim 1, characterized in that it further comprises a handle (9), and the handle (9) is fixed on the top of the vertical beam (7). 5. The guide rail wear detection device according to any one of claims 1 to 4, characterized in that: the lifting column (2) is provided with a protruding ring (21) whose diameter is larger than the through hole (11), The protruding ring (21) is located above the beam (1).