A device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails

Abstract

The present invention provides a device for detecting the installation accuracy of the embedded groove of the medium and low speed magnetic levitation contact rail, comprising a base with flat upper and lower surfaces for being placed on the upper surface of the side form of the external support rail beam, two slots opened on the base and arranged perpendicular to one side of the base, a slider slidably arranged on the base and located in the slot for cooperating with the side form of the external support rail beam, and a fixing member arranged between the slider and the base for fixing the slider to the base when the slider cooperates with the side form of the external support rail beam. The device can quickly measure the angle between the embedded groove of the contact rail and the horizontal plane, the horizontal position error of the embedded groove of the contact rail, and the distance from the top surface of the embedded groove of the contact rail to the upper surface of the side form of the support rail beam, thereby realizing rapid and precise positioning of the embedded groove of the contact rail of the medium and low speed magnetic levitation and ensuring installation accuracy. The device is practical and easy to carry, greatly saves construction cost and time cost, and is fast and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of precision detection devices, and in particular to a precision detection device for the installation of embedded grooves of medium and low speed magnetic levitation contact rails. Background Art

[0002] Medium- and low-speed maglev transportation systems (generally referring to maglev transportation systems with a travel speed of less than 160km / h) are characterized by low noise, low vibration, convenience and comfort, low cost compared to subways, and great freedom in line selection.

[0003] When installing the embedded groove of the contact rail of medium and low speed maglev, the distance between the top surface of the embedded groove of the contact rail and the upper surface of the side form of the rail beam is required to be 30±5mm; the embedded error of the embedded groove of the contact rail in the horizontal direction shall not exceed 20mm; the vertical direction of the embedded groove of the contact rail shall be perpendicular to the horizontal plane and the offset error at one end shall not exceed 2mm.

[0004] The embedded channel of the contact rail in the curved section must form a certain angle with the horizontal plane during installation. In current construction, the general practice is to use a tape measure to mark the upper surface of the side form of the rail beam to determine the installation position of the embedded channel of the contact rail. In addition, the distance between the top surface of the embedded channel of the contact rail and the upper surface of the side form of the rail beam must be at least 30 mm. It is impossible to accurately locate the embedded channel of the contact rail by using the marks on the upper surface of the side form of the rail beam. This method is not accurate enough and inefficient.

[0005] In the straight section, the embedded groove of the contact rail is perpendicular to the horizontal plane. The verticality of the embedded groove of the contact rail in the straight section is mainly measured using a spirit level. Since the verticality of the embedded groove of the contact rail is affected by the beam body of the supporting rail beam, it cannot be effectively detected. The embedded groove of the contact rail in the curved section has a certain angle with the horizontal plane. There is no effective detection method for this situation in the current construction. It is impossible to quickly measure the angle between the embedded groove of the contact rail and the horizontal plane, the horizontal position error of the embedded groove of the contact rail, and the distance from the top surface of the embedded groove of the contact rail to the upper surface of the side form of the supporting rail beam. It is impossible to achieve rapid and accurate positioning of the embedded groove of the contact rail in medium and low speed magnetic levitation, the installation accuracy cannot be guaranteed, and the construction cost and time cost cannot be saved. Summary of the Invention

[0006] The purpose of the present invention is to provide a device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails in view of the defects and shortcomings of the prior art.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] The cam is mounted on a platform, and the cam is located on a side of the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, wherein the cam is positioned adjacent to the platform, and the cam is positioned adjacent to the platform, A laser rangefinder coordinated with the optical plate, a protractor arranged on the base and parallel to the slot, a ruler movable up and down and rotatably on the surface of the protractor, a receiving slot provided on the ruler and arranged along the length direction of the ruler, an angle pointer rotatably arranged on the protractor and located in the receiving slot, a distance pointer arranged on the angle pointer and located outside the receiving slot, the angle pointer and the distance pointer being arranged perpendicularly to each other, the rotation point of the angle pointer and the protractor being at the center of the protractor, the connection point of the distance pointer and the angle pointer being at the center of the protractor, and when the ruler is perpendicular to the surface of the base, one side of the base, the central axis of the receiving slot, the central axis of the angle pointer, and the central axis of the protractor are on the same straight line.

[0009] A further improvement is that the fixing member includes two first bolts arranged between the slider and the base for fixing the slider to the base when the slider is matched with the side mold of the external rail beam.

[0010] A further improvement is that the distance pointer, the angle pointer and the ruler are all arranged on the protractor through a connecting piece, and the axis of the connecting piece coincides with the center of the protractor.

[0011] A further improvement is that the protractor is set on the base through a fixing block, the fixing block is connected to the base through a positioning column and a second bolt, the protractor is connected to the fixing block through a third bolt, and the connecting piece is passed through to connect with the fixing block.

[0012] A further improvement is that a step is formed at the lower end of the ruler for vertically abutting against the top surface of the embedded groove of the external contact rail.

[0013] A further improvement is that the ruler is a transparent plastic ruler, the protractor is a stainless steel protractor, and the base is an aluminum alloy base.

[0014] After adopting the above technical scheme, the beneficial effects of the present invention are: it can quickly measure the angle between the embedded groove of the contact rail and the horizontal plane, the horizontal position error of the embedded groove of the contact rail, and the distance from the top surface of the embedded groove of the contact rail to the upper surface of the side form of the rail-bearing beam, thereby realizing the rapid and precise positioning of the embedded groove of the contact rail of medium and low speed magnetic levitation, ensuring the installation accuracy. The device is practical and easy to carry, greatly saving construction costs and time costs, and is fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It corresponds to Figure 1 A top view of

[0018] Figure 3 It corresponds to Figure 1 A magnified view of part A;

[0019] Figure 4 It is a structural schematic diagram of the present invention when detecting the embedded groove of the contact rail of the straight section;

[0020] Figure 5 It is a structural schematic diagram of the present invention when detecting the embedded groove of the contact rail in the curved section.

[0021] Explanation of the accompanying symbols: rail beam 1, side formwork 2, base 3, slot 4, slider 5, scale line 6, spirit level 7, reflector 8, laser rangefinder 9, protractor 10, ruler 11, accommodating slot 12, angle pointer 13, distance pointer 14, first bolt 15, connecting piece 16, fixing block 17, positioning column 18, second bolt 19, third bolt 20, step 21, embedded groove of contact rail 22. DETAILED DESCRIPTION

[0022] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0023] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is:

[0024] A device for detecting the installation accuracy of embedded grooves of medium and low-speed magnetic levitation contact rails, comprising a base 3 with flat upper and lower surfaces for being placed on the upper surface of the side mold 2 of an external rail-supporting beam 1, two slots 4 opened on the base 3 and arranged perpendicular to one side of the base 3, a slider 5 slidably arranged on the base 3 and located in the slot 4 for cooperating with the side mold 2 of the external rail-supporting beam 1, a fixing member arranged between the slider 5 and the base 3 for fixing the slider 5 to the base 3 when the slider 5 cooperates with the side mold 2 of the external rail-supporting beam 1, a scale line 6 arranged on the base 3 and located on one side of the slot 4 for displaying the distance between the slider 5 and one side of the base 3, a level 7 arranged on the base 3 for displaying whether the base 3 is placed horizontally when the base 3 is placed on the upper surface of the side mold 2 of the rail-supporting beam 1, and a laser rangefinder arranged on the base 3 and located between the two slots 4 for cooperating with an external reflector 8. 9. A protractor 10 disposed on the base 3 and parallel to the slot 4, a ruler 11 movable up and down and rotatably on the surface of the protractor 10, a receiving slot 12 provided on the ruler 11 and arranged along the length of the ruler 11, an angle pointer 13 rotatably disposed on the protractor 10 and located within the receiving slot 12, a distance pointer 14 disposed on the angle pointer 13 and located outside the receiving slot 12, the angle pointer 13 and the distance pointer 14 being disposed perpendicularly to each other, the rotation point of the angle pointer 13 and the protractor 10 being at the center of the protractor 10, the connection point of the distance pointer 14 and the angle pointer 13 being at the center of the protractor 10, and when the ruler 11 is perpendicular to the surface of the base 3, a side edge of the base 3, the central axis of the receiving slot 12, the central axis of the angle pointer 13, and the central axis of the protractor 10 are on the same straight line.

[0025] The fixing member includes two first bolts 15 arranged between the slider 5 and the base 3 for fixing the slider 5 to the base 3 when the slider 5 is matched with the side form 2 of the external rail beam 1.

[0026] The distance pointer 14 , the angle pointer 13 , and the ruler 11 are all mounted on the protractor 10 via a connecting member 16 , and the axis of the connecting member 16 coincides with the center of the protractor 10 .

[0027] The protractor 10 is set on the base 3 through a fixing block 17, and the fixing block 17 is connected to the base 3 through a positioning column 18 and a second bolt 19. The protractor 10 is connected to the fixing block 17 through a third bolt 20, and the connecting member 16 is passed through to be connected to the fixing block 17.

[0028] A step 21 is formed at the lower end of the ruler 11 for vertically abutting against the top surface of the embedded groove 22 of the external contact rail.

[0029] The ruler 11 is a transparent plastic ruler, the protractor 10 is a stainless steel protractor, and the base 3 is an aluminum alloy base.

[0030] The working principle of the present invention is as follows: the distance from one side of the base 3 to the side of the side form 2 of the rail beam 1 is calculated according to the theoretical position of the embedded groove 22 of the contact rail to be installed, and then the position of the slider 5 in the slot 4 on the base 3 is adjusted by operating the first bolt 15. Specifically, the two sliders 5 can be both on one side of the side form 2 of the rail beam 1 or one on the inside of the side form 2 of the rail beam 1 and the other on the outside of the side form 2 of the rail beam 1 to fix the distance from one side of the base 3 to the side of the side form 2 of the rail beam 1; in order to avoid measurement errors caused by the uneven upper surface of the side form 2 of the rail beam 1, the horizontal position of the base 3 on the upper surface of the side form 2 of the rail beam 1 is adjusted by the level 7; the step 21 formed at the lower end of the ruler 11 It is perpendicular to the top surface of the embedded groove 22 of the contact rail, and the angle between the embedded groove 22 of the contact rail and the horizontal plane can be read by the protractor 10 and the angle pointer 13. The distance from the top surface of the embedded groove 22 of the contact rail to the center of the protractor 10 can be measured by the ruler 11 and the distance pointer 14. The distance from the top surface of the embedded groove 22 of the contact rail to the upper surface of the side form 2 of the support rail beam 1 can be calculated by the angle between the embedded groove 22 of the contact rail and the horizontal plane and the distance from the top surface of the embedded groove 22 of the contact rail to the center of the protractor 10; the reflector 8 is placed at the position of the reference line, and the position of the embedded groove 22 of the contact rail to the reference line can be measured by the laser rangefinder 9, so that the horizontal position error of the embedded groove 22 of the contact rail can be quickly detected.

[0031] It realizes the rapid and precise positioning of the embedded groove of the contact rail of medium and low speed magnetic levitation, ensuring the installation accuracy. The device is practical and easy to carry, greatly saving construction costs and time costs, and is fast and efficient.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails, characterized by: The cam is provided with a plurality of slots on the cam, and the slots are provided on the cam to form a plurality of slots on the cam. The slots are provided on the cam to form a plurality of slots on the cam. The slots are provided on the cam to form a plurality of slots on the cam. The slots are provided on the cam to form a plurality of slots on the cam. The slots are provided on the cam to form a plurality of slots on the cam. A protractor placed on the base and arranged parallel to the slot, a ruler movable up and down and rotatably on the surface of the protractor, a receiving slot opened on the ruler and arranged along the length direction of the ruler, an angle pointer rotatably arranged on the protractor and located in the receiving slot, a distance pointer arranged on the angle pointer and located outside the receiving slot, the angle pointer and the distance pointer being arranged perpendicularly to each other, the rotation point of the angle pointer and the protractor being at the center of the protractor, the connection point of the distance pointer and the angle pointer being at the center of the protractor, and when the ruler is perpendicular to the surface of the base, one side of the base, the central axis of the receiving slot, the central axis of the angle pointer, and the central axis of the protractor are on the same straight line.

2. The device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails according to claim 1, characterized in that: The fixing member includes two first bolts arranged between the slider and the base for fixing the slider to the base when the slider is matched with the side mold of the external rail beam.

3. The device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails according to claim 1, characterized in that: The distance pointer, the angle pointer, and the ruler are all arranged on the protractor through a connecting piece, and the axis of the connecting piece coincides with the center of the protractor.

4. The device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails according to claim 3, characterized in that: The protractor is arranged on the base through a fixing block, the fixing block is connected to the base through a positioning column and a second bolt, the protractor is connected to the fixing block through a third bolt, and the connecting piece is passed through to be connected to the fixing block.

5. The device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails according to claim 1, characterized in that: A step is formed at the lower end of the ruler for vertically abutting against the top surface of the embedded groove of the external contact rail.

6. The device for detecting the installation accuracy of embedded grooves of medium and low speed magnetic levitation contact rails according to claim 1, characterized in that: The ruler is a transparent plastic ruler, the protractor is a stainless steel protractor, and the base is an aluminum alloy base.

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