Urban rail transit rail cant measuring device

Abstract

The utility model discloses an urban rail transit rail cant measuring device which comprises a first clamping part, a second clamping part and a third clamping part, the first clamping part comprises a first contact surface and a first connecting end, and the second clamping part comprises a second contact surface, a second connecting end and a third connecting end. The third clamping part comprises a third contact face, a fourth connecting end and a first free end, the first contact face is tightly attached to the top face of the steel rail, the first connecting end is connected with the second connecting end, the second contact face is tightly attached to the side face of the rail head of the steel rail, the third connecting end is connected with the fourth connecting end, and the third contact face is tightly attached to the lower jaw face of the rail head of the steel rail. The first contact surface, the second contact surface and the third contact surface are respectively clung to the steel rail top surface, the steel rail head side surface and the steel rail head lower jaw surface, so that the first contact surface is parallel to the rail bottom surface of the steel rail, and the problem of inaccurate measured data caused by impurities adhered to the rail bottom when rail bottom slope data are measured through the rail bottom is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail measurement, in particular to a rail bottom slope measuring device for urban rail transit. Background Art

[0002] The bottom slope of the rail is the inclination of the vertical axis of the rail cross section relative to the normal of the top surface of the sleeper. If the bottom slope of the rail is not set accurately, it will cause the wear of the train wheels and rails to increase, affecting the service life of the train wheels and rails. At present, when measuring the bottom slope of the rail, it is necessary to first use a wire brush to clean the rust on the bottom part of the rail, and then place the measuring tool close to the bottom of the rail to measure the inclination of the bottom slope. When measuring by the above method, the surveyor needs to confirm whether there are sticky concrete slag, soil and other debris on the bottom of the rail, and clean them up. Otherwise, the sticky debris on the bottom of the rail is likely to cause inaccurate measurement data of the bottom slope. When cleaning, the on-site operator needs to repeatedly bow his head to confirm whether the debris is cleaned up. After the debris on the bottom of the rail is cleaned up and the measuring tool is placed on the bottom of the rail, the surveyor also needs to bend down to confirm whether the measuring tool is placed in a standard manner. This measurement method that requires the staff to repeatedly squat to confirm the situation is likely to cause personnel safety problems, and the sticky debris on the bottom of the rail will also cause inaccurate measurement data. Therefore, a measuring device that does not require the staff to squat repeatedly and is not affected by the debris on the bottom of the rail is needed. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the above-mentioned prior art and provides a device for measuring the bottom slope of rail transit in urban rail transit, by making a first contact surface close to the rail top surface of the rail, a second contact surface close to the side surface of the rail head of the rail, and a third contact surface close to the lower jaw surface of the rail head of the rail, so that the first contact surface is parallel to the bottom surface of the rail, and the first clamping portion is parallel to the bottom surface of the rail, so that the purpose of measuring the bottom slope data of the rail at the rail head of the rail can be achieved, and the problem of inaccurate measurement data due to debris sticking to the bottom of the rail when measuring the bottom slope data of the rail through the bottom of the rail is solved.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a device for measuring the bottom slope of a rail in urban rail transit, comprising a first clamping part, a second clamping part and a third clamping part, wherein the first clamping part and the third clamping part are respectively connected to the two end parts of the second clamping part, the first clamping part comprises a first contact surface and a first connecting end, the first connecting end is located at the end of the first contact surface along the length direction, the second clamping part comprises a second contact surface, a second connecting end and a third connecting end, the second connecting end and the third connecting end are respectively located at the two end parts of the second contact surface along the length direction, the third clamping part comprises a third contact surface, a fourth connecting end and a first free end, the fourth connecting end and the first free end are respectively located at the two end parts of the third contact surface along the length direction, the first contact surface is tightly attached to the rail top surface of the rail, the first connecting end is connected to the second connecting end, the second contact surface is tightly attached to the side surface of the rail head of the rail, the third connecting end is connected to the fourth connecting end, and the third contact surface is tightly attached to the lower jaw surface of the rail head of the rail.

[0005] Preferably, the angle α between the first contact surface and the second contact surface is 90 degrees, and the slope of the third contact surface is 1:3.

[0006] Preferably, the first clamping part, the second clamping part and the third clamping part are all made of steel plates and have a thickness of 3 mm.

[0007] Preferably, the first clamping portion is a square plate, the length of the first contact surface is 170 mm, the width of the first contact surface is 32 mm, and the first contact surface is parallel to the bottom surface of the rail when it is in close contact with the top surface of the rail.

[0008] Preferably, the second clamping portion is a square plate, and the second clamping portion also includes a first magnetic part, which is arranged on the outer side of the second clamping portion, the length of the second contact surface is 36.3 mm, the width of the second contact surface is 32 mm, the size of the first magnetic part matches the size of the second contact surface, and the second clamping portion is adsorbed on the side of the rail through the first magnetic part.

[0009] Preferably, the third clamping portion is a square plate, the length of the third contact surface is 20 mm, and the width of the third contact surface is 32 mm.

[0010] Preferably, the dimensions of the rail bottom slope measuring device match the geometric dimensions of the rail head of a 60kg / m rail.

[0011] Preferably, the rail bottom slope measuring device is formed by bending a steel plate in one step.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model measures the rail bottom slope data at the rail top, by closely contacting the first contact surface with the rail top surface of the rail, closely contacting the second contact surface with the rail head side surface of the rail, and closely contacting the third contact surface with the rail head lower jaw surface of the rail, so that the first contact surface is parallel to the rail bottom surface of the rail, and the first clamping part is parallel to the rail bottom surface of the rail, so that the purpose of measuring the rail bottom slope data at the rail head of the rail can be achieved, and the problem of inaccurate measurement data due to debris sticking to the rail bottom when measuring the rail bottom slope data through the rail bottom is solved.

[0014] 2. The measuring device of the utility model is installed on the rail top, which avoids the workers from cleaning sticky debris and repeatedly squatting to confirm whether the rail bottom measuring device is installed in accordance with the specification, thereby improving the work efficiency of the workers and reducing the labor intensity of the workers.

[0015] 3. The electronic rail bottom slope gauge of the utility model is placed on the top of the first clamping part, the first clamping part is parallel to the rail bottom surface of the rail, and the steel plate stiffness of the first clamping part meets the weight requirement of bearing the electronic rail bottom slope gauge, thereby avoiding the problem of inaccurate measurement data caused by improper placement of the electronic rail bottom slope gauge.

[0016] The present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model connected with the rail;

[0018] Figure 2 It is a structural schematic diagram of the utility model.

[0019] Description of reference numerals:

[0020] 1—first clamping portion; 1-1—first contact surface; 1-2—first connecting end;

[0021] 2—second clamping portion; 2-1—second contact surface; 2-2—second connecting end;

[0022] 2-3—third connecting end; 3—third clamping portion; 3-1—third contact surface;

[0023] 3-2—fourth connecting end; 3-3—first free end; 4—first magnetic member;

[0024] 5—Electronic rail bottom slope gauge; 6—Steel rail. DETAILED DESCRIPTION

[0025] like Figure 1 to Figure 2As shown, the utility model includes a first clamping portion 1, a second clamping portion 2 and a third clamping portion 3, the first clamping portion 1 and the third clamping portion 3 are respectively connected to the two end portions of the second clamping portion 2, the first clamping portion 1 includes a first contact surface 1-1 and a first connecting end 1-2, the first connecting end 1-2 is located at the end of the first contact surface 1-1 along the length direction, the second clamping portion 2 includes a second contact surface 2-1, a second connecting end 2-2 and a third connecting end 2-3, the second connecting end 2-2 and the third connecting end 2-3 are respectively located at the second contact surface 2-1 along the length direction At both end portions, the third clamping portion 3 includes a third contact surface 3-1, a fourth connecting end 3-2 and a first free end 3-3. The fourth connecting end 3-2 and the first free end 3-3 are respectively located at the two end portions of the third contact surface 3-1 along the length direction. The first contact surface 1-1 is tightly attached to the top surface of the rail 6, the first connecting end 1-2 is connected to the second connecting end 2-2, the second contact surface 2-1 is tightly attached to the side surface of the rail head of the rail 6, the third connecting end 2-3 is connected to the fourth connecting end 3-2, and the third contact surface 3-1 is tightly attached to the lower jaw surface of the rail head of the rail 6.

[0026] The measuring device of the present application is used in conjunction with an electronic rail bottom slope ruler 5 to measure the inclination angle of the rail bottom slope. The electronic rail bottom slope ruler 5 is placed on the top of the first clamping part 1. The first connecting end 1-2 is fixedly connected to the second connecting end 2-2, and the third connecting end 2-3 is fixedly connected to the fourth connecting end 3-2, so that the first clamping part 1, the second clamping part 2 and the third clamping part 3 are connected as a whole, and the first clamping part 1 is first driven to move toward the side close to the head of the rail 6. While pulling the first clamping part 1, the second contact surface 2-1 is gradually driven by the first clamping part 1 to approach the side of the head of the rail 6 until the second contact surface 2-1 is tightly against the side of the head of the rail 6. At this time, the first contact surface 1-1 is tightly against the top surface of the rail 6, and the third contact surface 3-1 is tightly against the lower jaw surface of the head of the rail 6. The first contact surface 1-1 is against the rail The rail top surface of the rail 6 forms downward pressure, and the third contact surface 3-1 forms an upward reaction force under the pressure of the rail head of the rail 6. Under the interaction of the first contact surface 1-1 and the third contact surface 3-1, the first clamping part 1, the second clamping part 2 and the third clamping part 3 are connected as a whole and clamped on the rail head of the rail 6. Since the rail top section of the rail 6 is parallel to the rail bottom surface of the rail 6, when the first clamping part 1 is close to the rail top surface of the rail 6, the first contact surface 1-1 is tangent to the rail top surface of the rail 6, so the first clamping part 1 is parallel to the rail bottom surface of the rail 6, and the inclination angle measured by the electronic rail bottom slope ruler 5 on the first clamping part 1 is the rail bottom slope inclination angle. Adjusting the measurement of the rail bottom to the rail head can avoid the influence of rail bottom debris on the measurement accuracy, and can also avoid the personal safety problems caused by the staff repeatedly squatting.

[0027] The included angle α between the first contact surface 1 - 1 and the second contact surface 2 - 1 is 90 degrees, and the slope of the third contact surface 3 - 1 is 1:3.

[0028] Since the slope of the lower jaw surface of the rail head of the rail 6 is 1:3, in order to make the third contact surface 3-1 close to the lower jaw surface of the rail head of the rail 6, the slope of the third contact surface 3-1 is also set to 1:3, at this time, the third contact surface 3-1 can be in close contact with the lower jaw surface of the rail head of the rail 6; the second contact surface 2-1 extends vertically upward along the connection between the lower jaw surface of the rail head of the rail 6 and the side surface of the rail head of the rail 6, and is parallel to the central axis of the rail 6. The second contact surface 2-1 is in close contact with the side surface of the rail head of the rail 6 near the third contact surface 3-1. Since the top surface of the rail 6 is close to the rail 6 The connecting portion of the side surface of the rail head is an arc, so there is a gap between the second contact surface 2-1 close to the top surface of the rail 6 and the side surface of the rail head of the rail 6; since the cross-section of the top surface of the rail 6 is parallel to the bottom surface of the rail 6, and the bottom surface of the rail 6 is perpendicular to the central axis of the rail 6, when the first contact surface 1-1 is tangent to the top surface of the rail 6, the first contact surface 1-1 is also parallel to the bottom surface of the rail 6, then the first contact surface 1-1 intersects the second contact surface 2-1 perpendicularly, so the angle α between the first contact surface 1-1 and the second contact surface 2-1 is 90 degrees.

[0029] The first clamping part 1, the second clamping part 2 and the third clamping part 3 are all made of steel plates and have a thickness of 3 mm.

[0030] The first clamping part 1, the second clamping part 2 and the third clamping part 3 are all made of 3 mm thick steel plates, because the stiffness of the 3 mm thick steel plates meets the requirement of bearing the weight of the electronic rail bottom slope ruler 5. The weight of the electronic rail bottom slope ruler 5 is 360 g. The electronic rail bottom slope ruler 5 is placed on the top of the first clamping part 1 and the position is fixed, which can improve the measurement accuracy of the electronic rail bottom slope ruler 5.

[0031] The first clamping portion 1 is a square plate, the length of the first contact surface 1-1 is 170 mm, the width of the first contact surface 1-1 is 32 mm, and the first contact surface 1-1 is parallel to the bottom surface of the rail 6 when it is in close contact with the top surface of the rail 6.

[0032] The length of the electronic rail bottom slope ruler 5 is 164mm, the width is 32mm, and the height is 60mm. The electronic rail bottom slope ruler 5 needs to be placed on the top of the first clamping part 1, so the size of the first clamping part 1 needs to be larger than the size of the electronic rail bottom slope ruler 5. Since the first clamping part 1 is a square plate, the top size of the first clamping part 1 is the same as the size of the first contact surface 1-1, so the length of the top surface of the first clamping part 1 is set to 170mm, and the width of the top surface of the first clamping part 1 is set to 32mm, and the electronic rail bottom slope ruler 5 can be placed on the top surface of the first clamping part 1. Since the cross-section of the top surface of the rail 6 is parallel to the bottom surface of the rail 6, and the first clamping part 1 is a square plate, the first contact surface 1-1 is square, and when the first contact surface 1-1 is close to the top surface of the rail 6, it is equivalent to the first contact surface 1-1 being the cross-section of the top surface of the rail 6, so the first contact surface 1-1 is parallel to the bottom surface of the rail 6 when it is close to the top surface of the rail 6.

[0033] The second clamping part 2 is a square plate, and the second clamping part 2 also includes a first magnetic part 4, which is arranged on the outer side of the second clamping part 2. The length of the second contact surface 2-1 is 36.3 mm, and the width of the second contact surface 2-1 is 32 mm. The size of the first magnetic part 4 matches the size of the second contact surface 2-1, and the second clamping part 2 is adsorbed on the side of the rail 6 through the first magnetic part 4.

[0034] Since the second connecting end 2-2 is connected to the first connecting end 1-2, and the second connecting end 2-2 is located at the end of the second contact surface 2-1, and the first connecting end 1-2 is located at the end of the first contact surface 1-1, the second contact surface 2-1 extends upward away from the end of the third contact surface 3-1 and is connected to the end of the first contact surface 1-1. Since the second contact surface 2-1 is in close contact with the side surface of the rail head of the rail 6, the first contact surface 1-1 is in close contact with the top surface of the rail 6, and the cross-section of the top surface of the rail 6 is perpendicular to the section of the side surface of the rail head of the rail 6, the second contact surface 2-1 is perpendicular to the first contact surface 1-1, and the height of the second contact surface 2-1 matches the height of the rail head of the rail 6. The height of the rail head of the rail 6 applicable to the measuring device of the present application is 36.3mm, so the length of the second contact surface 2-1 is set to 36.3mm, and the width of the second contact surface 2-1 is set to 32mm.

[0035] In order to keep the second contact surface 2-1 in close contact with the side of the rail head of the rail 6, the first magnetic member 4 is arranged on the outer side of the second clamping part 2. The first magnetic member 4 can be a high-strength magnet. After the first magnetic member 4 is attracted to the outer side of the second clamping part 2, the second contact surface 2-1 is attracted to the side of the rail head of the rail 6. The first magnetic member 4 makes the second contact surface 2-1 more firmly adsorbed on the side of the rail head of the rail 6; since the second clamping part 2 is a square plate, the second contact surface 2-1 is the inner side of the second clamping part 2, and therefore the outer side of the second clamping part 2 is the side away from the second contact surface 2-1. The size of the outer side surface of the second clamping part 2 is consistent with the size of the second contact surface 2-1. The size of the first magnetic part 4 can be consistent with the size of the second contact surface 2-1, or can be smaller than the size of the second contact surface 2-1. If the size of the first magnetic part 4 is consistent with the size of the second contact surface 2-1, the first magnetic part 4 covers the entire outer side surface of the second clamping part 2; if the size of the first magnetic part 4 is smaller than the size of the second contact surface 2-1, the first magnetic part 4 is installed on the outer side surface of the second clamping part 2 close to the third contact surface 3-1, so that the first magnetic part 4 can be attracted to the side of the rail head of the rail 6.

[0036] The third clamping portion 3 is a square plate, the length of the third contact surface 3 - 1 is 20 mm, and the width of the third contact surface 3 - 1 is 32 mm.

[0037] The third clamping portion 3 is in close contact with the lower jaw surface of the rail 6, which is convenient for clamping the measuring device, and according to the slope of the third contact surface 3-1 of 1:3 and the size of the rail head of the rail 6 applicable to the measuring device of the present application, in order to avoid the third contact surface 3-1 being too long, the first free end 3-3 extends into the junction between the lower jaw surface of the rail 6 and the waist of the rail 6, resulting in the second contact surface 2-1 being unable to fit the side of the rail head of the rail 6, making the first contact surface 1-1 unable to be parallel to the bottom surface of the rail 6, or the third contact surface 3-1 is too short and the measuring device cannot be clamped. Therefore, according to the size of the rail head of the rail 6 applicable to the measuring device of the present application and combined with the slope data of the third contact surface 3-1, the length of the third contact surface 3-1 is set to 20mm, and the width of the third contact surface 3-1 is set to 32mm.

[0038] The dimensions of the rail bottom slope measuring device match the rail head geometry of the 60kg / m rail 6 .

[0039] The size and angle of the measuring device of the present application are designed according to the geometric dimensions of the rail head of the 60kg / m (60 kilograms per meter) rail 6. The slope of the lower jaw part of the rail head of the 60kg / m rail 6 is 1:3, so the slope of the third contact surface 3-1 is set to 1:3, and the height of the second contact surface 2-1 is designed according to the side height of the rail head of the 60kg / m rail 6. The size of the third contact surface 3-1 is also designed according to the size of the lower jaw surface of the rail head of the 60kg / m rail 6, so that the measuring device can be fully fitted with all surfaces of the rail head of the 60kg / m rail 6, thereby improving the measurement accuracy of the electronic rail bottom slope ruler 5.

[0040] The rail bottom slope measuring device is formed by bending a steel plate in one step.

[0041] When in use, place the first clamping part 1 horizontally and the second clamping part 2 vertically, and drive the first clamping part 1 to move toward the rail head of the rail 6. The first clamping part 1 drives the second clamping part 2 connected thereto to move synchronously toward the rail head of the rail 6 until the second contact surface 2-1 is in close contact with the side surface of the rail head of the rail 6, and check whether the third contact surface 3-1 is in close contact with the lower jaw surface of the rail head of the rail 6, and whether the first contact surface 1-1 is in close contact with the top surface of the rail 6. If the first contact surface 1-1 is in close contact with the top surface of the rail 6 and the third contact surface 3-1 is in close contact with the lower jaw surface of the rail head of the rail 6, the measuring device is clamped to the rail head of the rail 6. If there is a gap between the first contact surface 1-1 and the top surface of the rail 6, or there is a gap between the third contact surface 3-1 and the lower jaw surface of the rail head of the rail 6, then The second contact surface 2-1 is released from the side of the rail head of the rail 6, and the first clamping part 1 is driven to move toward the rail head of the rail 6 again, until the first contact surface 1-1 is in close contact with the top surface of the rail 6, the second contact surface 2-1 is in close contact with the side of the rail head of the rail 6, and the third contact surface 3-1 is in close contact with the lower jaw surface of the rail head of the rail 6, then the electronic rail bottom slope ruler 5 is placed on the top surface of the first clamping part 1, and the inclination of the top surface of the rail 6 is measured by the electronic rail bottom slope ruler 5. Since the top surface of the rail 6 is parallel to the bottom surface of the rail 6, the measurement of the inclination of the top surface of the rail 6 is the measurement of the inclination of the bottom surface of the rail 6. Through this measurement method, the labor intensity caused by the staff cleaning the debris stuck on the bottom surface of the rail 6 and repeatedly squatting is reduced, and the measurement accuracy is improved at the same time.

[0042] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural transformation made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. An urban rail transit rail bottom slope measuring device, characterized in that: The invention comprises a first clamping portion (1), a second clamping portion (2) and a third clamping portion (3), wherein the first clamping portion (1) and the third clamping portion (3) are respectively connected to the two end portions of the second clamping portion (2), the first clamping portion (1) comprises a first contact surface (1-1) and a first connecting end (1-2), the first connecting end (1-2) is located at the end portion of the first contact surface (1-1) along the length direction, the second clamping portion (2) comprises a second contact surface (2-1), a second connecting end (2-2) and a third connecting end (2-3), the second connecting end (2-2) and the third connecting end (2-3) are respectively located at the two end portions of the second contact surface (2-1) along the length direction, The third clamping portion (3) comprises a third contact surface (3-1), a fourth connecting end (3-2) and a first free end (3-3); the fourth connecting end (3-2) and the first free end (3-3) are respectively located at the two end portions of the third contact surface (3-1) along the length direction; the first contact surface (1-1) is in close contact with the rail top surface of the rail (6); the first connecting end (1-2) is connected to the second connecting end (2-2); the second contact surface (2-1) is in close contact with the side surface of the rail head of the rail (6); the third connecting end (2-3) is connected to the fourth connecting end (3-2); and the third contact surface (3-1) is in close contact with the lower jaw surface of the rail head of the rail (6).

2. The urban rail transit rail bottom slope measuring device according to claim 1, characterized in that: The included angle α between the first contact surface (1-1) and the second contact surface (2-1) is 90 degrees, and the slope of the third contact surface (3-1) is 1:

3.

3. The urban rail transit rail bottom slope measuring device according to claim 1, characterized in that: The first clamping part (1), the second clamping part (2) and the third clamping part (3) are all made of steel plates and have a thickness of 3 mm.

4. The urban rail transit rail bottom slope measuring device according to claim 3, characterized in that: The first clamping portion (1) is a square plate, the length of the first contact surface (1-1) is 170 mm, the width of the first contact surface (1-1) is 32 mm, and the first contact surface (1-1) is parallel to the bottom surface of the rail (6) when it is in close contact with the top surface of the rail (6).

5. The urban rail transit rail bottom slope measuring device according to claim 3, characterized in that: The second clamping portion (2) is a square plate. The second clamping portion (2) further comprises a first magnetic member (4). The first magnetic member (4) is arranged on the outer side of the second clamping portion (2). The length of the second contact surface (2-1) is 36.3 mm. The width of the second contact surface (2-1) is 32 mm. The size of the first magnetic member (4) matches the size of the second contact surface (2-1). The second clamping portion (2) is adsorbed on the side of the rail (6) through the first magnetic member (4).

6. The urban rail transit rail bottom slope measuring device according to claim 5, characterized in that: The third clamping portion (3) is a square plate, the length of the third contact surface (3-1) is 20 mm, and the width of the third contact surface (3-1) is 32 mm.

7. An urban rail transit rail bottom slope measuring device according to any one of claims 1 to 6, characterized in that: The dimensions of the rail bottom slope measuring device match the geometrical dimensions of the rail head of a 60kg / m steel rail (6).

8. An urban rail transit rail bottom slope measuring device according to any one of claims 1 to 6, characterized in that: The rail bottom slope measuring device is formed by bending a steel plate in one step.

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