Steel rail dimension detection and calibration device

Abstract

The utility model relates to the technical field of steel rail detection, in particular to a steel rail size detection and calibration device which comprises two carrier rollers arranged side by side, and the carrier rollers form a conveying channel used for conveying a steel rail to be detected. The guide mechanism is used for guiding the movement of the steel rail to be detected; a calibration mechanism is arranged between the two carrier rollers and provided with a plurality of calibration points in the length direction of the conveying channel. And the carrier roller and the calibration mechanism are fixed on the base through a bracket. According to the utility model, the calibration point along the length direction of the steel rail to be measured is arranged on the external calibration mechanism of the steel rail to be measured, so that the inconvenience of manually arranging the calibration point on the steel rail to be measured is avoided. The device can calibrate a distance between the two ends of the steel rail to be measured, and is beneficial for realizing automation.

Description

Technical Field

[0001] The utility model relates to the technical field of rail detection, in particular to a rail size detection and calibration device. Background Art

[0002] With the continuous development of high-speed and heavy-load railways, seamless lines are widely recognized for their high stability and reliability. Rail welding technology, as one of the key technologies for seamless lines, has an important impact on the development of seamless lines. Before welding the rails, it is necessary to inspect the length within a certain range at both ends of the rails. The inspection items include rail type and size, end straightness, distortion, etc. At present, three-dimensional imaging equipment is usually used to scan both ends of the rails. The rails need to be calibrated before scanning. The existing manual calibration method is not easy to set calibration points on the rails and manual calibration is time-consuming, which is not conducive to automation. Utility Model Content

[0003] The utility model aims to provide a rail size detection and calibration device to solve the problems in the prior art that it is difficult to set calibration points on the rails and the manual calibration is time-consuming, which is not conducive to automation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A rail size detection and calibration device, comprising:

[0006] Two rollers arranged side by side, the rollers forming a conveying channel for conveying the rail to be tested;

[0007] A guiding mechanism, used for guiding the movement of the steel rail to be tested;

[0008] A calibration mechanism is provided between the two rollers, and the calibration mechanism is provided with a plurality of calibration points along the length direction of the conveying channel;

[0009] The roller and the calibration mechanism are fixed on the base through a bracket.

[0010] Preferably, the calibration mechanism comprises at least two calibration rods extending along the length direction of the conveying channel, the calibration rods are placed outside the conveying channel, and the calibration rods are provided with a plurality of calibration points along the length direction.

[0011] Preferably, there are four calibration rods arranged in a ring around the conveying channel.

[0012] Preferably, connecting plates are provided at both ends of the calibration rod, the connecting plates at the ends of two adjacent calibration rods are connected, and the connecting plates at both ends of at least one calibration rod have an adjustment mechanism for adjusting the installation position of the calibration rod on the connecting plate.

[0013] Preferably, a supporting device for supporting the steel rail to be tested is provided below the conveying channel, and the supporting device includes a top rod, the top rod is connected to a slider, the slider is slidably connected to the guide rail, and the top rod is connected to a driving device.

[0014] Preferably, the guide mechanism includes guide wheels arranged opposite to each other on both sides of the conveying channel.

[0015] Preferably, the roller comprises a drum, end shafts are provided at both ends of the drum, bearing seats are provided on the end shafts, and the bearing seats are fixed on the base.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The device of the utility model avoids the inconvenience of manually setting calibration points on the rail to be tested by setting calibration points along the length direction of the rail to be tested on the calibration mechanism external to the rail to be tested. After one end of the rail is tested, it continues to move along the conveying channel. After the rail to be tested at the other end enters the detection area, the calibration mechanism calibrates the other end of the rail. As the rail moves along the conveying channel, the device can calibrate a distance between the two ends of the rail to be tested, which is conducive to the realization of automation.

[0018] 2. The connecting plates at both ends of the calibration rod have adjustment mechanisms, which are used to adjust the installation position of the calibration rod on the connecting plates, so as to facilitate the calibration of different areas of the rail and avoid the calibration rod from blocking the three-dimensional imaging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a rail size detection and calibration device in this embodiment;

[0020] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0021] Figure 3 This is a schematic diagram of the calibration device in this embodiment calibrating the rail to be tested;

[0022] Figure 4 It is a side view of the calibration device in this embodiment;

[0023] Figure 5 for Figure 3 Enlarged view of middle part B;

[0024] Markings in the figure: 100 - rail to be tested, 1 - roller, 101 - roller, 102 - bearing seat, 2 - guide mechanism, 201 - guide wheel, 3 - calibration mechanism, 301 - calibration rod, 302 - connecting plate, 4 - base, 5 - supporting device, 501 - top rod, 502 - slider, 503 - guide rail, 504 - driving device. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figure 1-5 As shown in the figure, a rail size detection and calibration device of this embodiment includes:

[0027] Two rollers 1 are arranged side by side, the two rollers 1 are in a straight line, and the rollers 1 form a conveying channel for conveying the steel rail 100 to be tested;

[0028] A guiding mechanism 2, used for guiding the linear transportation of the steel rail 100 to be tested;

[0029] A calibration mechanism 3 is provided between the two rollers 1, and the calibration mechanism 3 is provided with a plurality of calibration points along the length direction of the conveying channel. The length direction of the conveying channel is the length direction or the conveying direction of the steel rail 100 to be measured, and the calibration points are used for the recognition of the three-dimensional imaging mechanism;

[0030] The roller 1 and the calibration mechanism 3 are fixed on the base 4 through a bracket.

[0031] The steel rail 100 to be tested is transported by the rollers 1, and one end of the steel rail is transported to the detection area between the two rollers 1. The detection area is provided with a three-dimensional imaging mechanism to detect the end of the steel rail. The detection area is provided with the calibration mechanism 3, and the calibration mechanism 3 is provided with a plurality of calibration points along the length direction of the conveying channel. The calibration points are distributed along the length direction of the steel rail 100 to be tested. The three-dimensional imaging mechanism identifies the calibration points and detects the end of the steel rail. The device of the utility model avoids the inconvenience of manually setting calibration points on the steel rail 100 to be tested by setting calibration points along the length direction of the steel rail 100 to be tested on the calibration mechanism 3 external to the steel rail 100 to be tested. After one end of the steel rail is tested, it continues to move forward along the conveying channel. After the steel rail 100 to be tested at the other end enters the detection area, the calibration mechanism 3 calibrates the other end of the steel rail. As the steel rail moves forward along the conveying channel, the device can calibrate a distance at both ends of the steel rail 100 to be tested, which is conducive to the realization of automation.

[0032] When inspecting existing rails, it is necessary to inspect approximately 2.5m from both ends of the rails. Figure 2 The figure shows a schematic diagram of the device detecting one end of the steel rail 100 to be detected. The right end of the steel rail 100 to be detected is transported to the middle detection area by the left roller 1. The detection area is provided with the calibration mechanism 3, which includes at least two calibration rods 301 extending along the length direction of the conveying channel. The calibration rods 301 are placed outside the conveying channel. The calibration rods 301 are provided with multiple calibration points along the length direction. The three-dimensional imaging mechanism detects the steel rail 100 to be detected according to the calibration points. After the detection of the right end of the steel rail is completed, continue to move along the conveying channel. After the left end of the steel rail enters the detection area, the calibration mechanism 3 detects the left end of the steel rail.

[0033] like Figure 2 As shown, in this embodiment, there are four calibration rods 301, which are arranged in a ring around the conveying channel. The calibration rods 301 are arranged on the upper, lower, left and right sides of the steel rail 100 to be tested, so that a comprehensive calibration can be provided for the steel rail 100 to be tested. The imaging is more accurate. In other feasible embodiments, the number of the calibration rods 301 can be two or three.

[0034] In this embodiment, connecting plates 302 are provided at both ends of the calibration rod 301, and the connecting plates 302 at the ends of two adjacent calibration rods 301 are connected. The connecting plates 302 at both ends of at least one calibration rod 301 have an adjustment mechanism, and the adjustment mechanism is used to adjust the installation position of the calibration rod 301 on the connecting plate 302, which is convenient for calibrating different areas of the rail and can avoid the calibration rod 301 from blocking the three-dimensional imaging device. The adjustment mechanism includes a plurality of positioning holes provided on the connecting plate 302, and the calibration rod 301 is fixed at different positioning holes to adjust the installation position of the calibration rod 301 on the connecting plate 302. In other feasible embodiments, the positioning hole can be a waist-shaped hole, and the end of the calibration rod 301 is fixed at different positions of the waist-shaped hole by screws.

[0035] In other feasible embodiments, the connecting plate 302 may also be located in the middle of the calibration rod 301, and the adjustment mechanism may also be an annular positioning ring, and the position of the calibration rod 301 on the annular positioning ring may be adjusted at will.

[0036] like Figure 3 As shown, the end of the steel rail 100 to be tested is suspended for a certain distance during testing, in order to avoid a small amount of deformation of the suspended part due to gravity or a slight vibration due to the surrounding environment. Figure 5As shown, in this embodiment, a support device 5 for supporting the steel rail 100 to be tested is provided below the conveying channel, and the support device 5 includes a mandrel 501, the mandrel 501 is connected to a slider 502, the slider 502 is slidably connected to a guide rail 503, and the mandrel 501 is connected to a driving device 504. The guide rail 503 and the slider 502 guide the displacement of the mandrel 501, and the driving device 504 is such as an electric push rod, which drives the mandrel 501 to extend and retract to support the steel rail 100 to be tested.

[0037] In this embodiment, the guide mechanism 2 includes guide wheels 201 disposed opposite to each other on both sides of the conveying channel. The guide wheels 201 guide the conveying of the steel rail 100 to be tested.

[0038] In this embodiment, the roller 1 includes a drum 101 . End shafts are provided at both ends of the drum 101 . A bearing seat 102 is provided on the end shaft. The bearing seat 102 is fixed on the base 4 .

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rail size detection and calibration device, characterized in that: include: Two rollers (1) arranged side by side, the rollers (1) forming a conveying channel for conveying the steel rail (100) to be tested; A guiding mechanism (2) for guiding the movement of the steel rail (100) to be tested; A calibration mechanism (3) is provided between the two rollers (1), and the calibration mechanism (3) is provided with a plurality of calibration points along the length direction of the conveying channel; The roller (1) and the calibration mechanism (3) are fixed on the base (4) via a bracket.

2. A rail size detection and calibration device according to claim 1, characterized in that: The calibration mechanism (3) comprises at least two calibration rods (301) extending along the length direction of the conveying channel, the calibration rods (301) being placed outside the conveying channel, and the calibration rods (301) being provided with a plurality of calibration points along the length direction.

3. A rail size detection and calibration device according to claim 2, characterized in that: There are four calibration rods (301) arranged in a ring shape around the conveying channel.

4. A rail size detection and calibration device according to any one of claims 2-3, characterized in that: Connecting plates (302) are provided at both ends of the calibration rod (301), the connecting plates (302) at the ends of two adjacent calibration rods (301) are connected, and the connecting plates (302) at both ends of at least one calibration rod (301) have an adjustment mechanism, and the adjustment mechanism is used to adjust the installation position of the calibration rod (301) on the connecting plate (302).

5. A rail size detection and calibration device according to any one of claims 1 to 3, characterized in that: A support device (5) for supporting the steel rail (100) to be tested is provided below the conveying channel, the support device (5) comprising a push rod (501), the push rod (501) being connected to a slider (502), the slider (502) being slidably connected to a guide rail (503), and the push rod (501) being connected to a driving device (504).

6. A rail size detection and calibration device according to any one of claims 1 to 3, characterized in that: The guide mechanism (2) comprises guide wheels (201) arranged opposite to each other on both sides of the conveying channel.

7. A rail size detection and calibration device according to any one of claims 1 to 3, characterized in that: The roller (1) comprises a roller (101), and end shafts are provided at both ends of the roller (101). A bearing seat (102) is provided on the end shaft, and the bearing seat (102) is fixed on the base (4).

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