Auxiliary calibration device and system for measuring trolley

Abstract

The utility model discloses an auxiliary calibration device and system for a measuring trolley. The device comprises a supporting mechanism, a position adjusting mechanism, a first bottom plate and a top plate. One end of the supporting mechanism is connected with the first bottom plate, and the other end is fixed to the rail bottom of the steel rail during calibration and used for adjusting the horizontal levelness of the top plate. A clamping jaw is arranged at the bottom of the first bottom plate in the longitudinal direction, and the first bottom plate is fixed to a steel rail through the clamping jaw during calibration. Fixing bolts are arranged at the front end and the rear end of the first bottom plate in the longitudinal direction and used for adjusting the longitudinal levelness of the top plate. The position adjusting mechanism is arranged on the first bottom plate, the top plate is arranged on the position adjusting mechanism, and the position adjusting mechanism is used for adjusting the height of the top plate relative to the first bottom plate. The technical problems that an existing manual field calibration mode is high in labor intensity, large in calibration error and low in metering efficiency can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of railway engineering machinery, and in particular to a device and system for auxiliary calibration of a measuring trolley. Background Art

[0002] Railway tracks, as the ground foundation for train operation, have the characteristics of integrity and dispersion, and are one of the important basic equipment to support high-speed train operation. However, with the use and passage of time, railway tracks will inevitably deform, and their geometric parameters will gradually deviate from their original state, affecting their smoothness. Therefore, during the long-term inspection and maintenance of railway tracks after they are put into operation, high-precision inspection of the geometric smoothness of the tracks is required to ensure that the geometric state of the tracks meets the technical requirements of high smoothness and high stability.

[0003] As a railway track straightening equipment, the tamping car is a large-scale track maintenance machine for the maintenance and repair of railway lines. It is a special vehicle that can repair and detect track line parameters at the same time. It is widely used in major railway bureaus for its high operating efficiency and high operating accuracy. The measuring trolley is a device for the tamping car to detect track line parameters. It relies on the contact between the tread and the wheel flange of the trolley wheel on the tread of the rail and the inner side of the rail head to correctly measure the actual position of the rail. The measuring trolley is equipped with a transverse level sensor (referred to as a transverse level sensor, also known as an electronic pendulum), which is a sensor for detecting the transverse level deviation of the two rails; the height sensor (leveling sensor) is a sensor for detecting the longitudinal height deviation of the line; the vector distance sensor (positive vector sensor) is a sensor for detecting the direction deviation of the line. The detection accuracy of the sensor is the key factor that determines the tamping car's accurate detection of the track line geometric parameters and the precise correction of the track line geometric parameters.

[0004] However, after a period of use, the tamping vehicle may experience a decrease in operating accuracy or even fail to operate normally due to wear of the measuring trolley or damage and replacement of some related parts. Therefore, the sensor measurement system on the vehicle needs to be recalibrated. "Standard track" means that the errors in the horizontal, vertical and positron directions of the left and right tracks are so small that they can be ignored. Because the factory calibration of a new vehicle is performed by parking the vehicle on the "standard track", the calibration of the sensor measurement system of the tamping vehicle at the user's site is much more difficult than the factory calibration of a new vehicle by the manufacturer. It is difficult for users to find the "standard track" at the operation site, and they generally choose a section of rail with the smallest possible error to operate. This on-site sensor measurement method has a large calibration accuracy error, and the calibration procedure is time-consuming and labor-intensive.

[0005] In the prior art, the following documents are mainly related to this application:

[0006] Prior art 1 is a paper by Zhang Yuanbo titled "Detection Principle and On-site Calibration of the Longitudinal Level of the Line of D09-32 Continuous Tamping Vehicle" published in the 2008-05-01 issue of "China High-tech Enterprises". The paper discloses a detection principle and calibration method for the longitudinal level, mainly for the simulated version of the vehicle, and discloses a calibration principle and method for the longitudinal level of the simulated version of the D0932 tamping vehicle, which uses an optical level and a pad to achieve the calibration of the longitudinal level of the tamping vehicle. However, a large number of manual operations are still required on site, including the installation of a laser level (difficult to level), manual repeated adjustment of the ruler height, padding, etc., which is time-consuming and laborious.

[0007] In summary, the current limitations of the on-site calibration of the sensors of the tamping measurement vehicle are mainly reflected in the following aspects:

[0008] 1) There is no standard track at the station or operation site, which affects the calibration accuracy. It is time-consuming and laborious to make a standard track at the construction site, with high costs and heavy workload;

[0009] 2) The standard line at the construction site is artificially repaired or simulated by adding gaskets. The on-site calibration procedure is complicated, time-consuming and labor-intensive, and requires running on and off the vehicle, and it is difficult to ensure the accuracy requirements;

[0010] 3) Poor calibration accuracy at the construction site causes deviation in the tamping vehicle’s operating accuracy;

[0011] 4) Standard lines can only be used at designated locations and cannot be relocated, making them inconvenient to use randomly.

[0012] Therefore, developing a new device and method to replace the existing calibration method to quickly fit the function of the standard rail and quickly realize the calibration of the horizontal, vertical and direction of the on-board sensor measurement system has become a technical problem that needs to be solved urgently. Utility Model Content

[0013] In view of this, the purpose of the present application is to provide a measuring trolley auxiliary calibration device and system to solve the technical problems of the existing manual on-site calibration method with high labor intensity, large calibration error and low measurement efficiency.

[0014] In order to achieve the above-mentioned purpose of the utility model, the present application specifically provides a technical implementation scheme of a measuring trolley auxiliary calibration device, which includes: a support mechanism, a position adjustment mechanism, a first bottom plate and a top plate. One end of the support mechanism is connected to the first bottom plate, and the other end is fixed to the bottom of the rail during calibration, so as to adjust the horizontality of the top plate in the horizontal direction. A clamping jaw is provided at the bottom of the first bottom plate in the longitudinal direction, and the first bottom plate is fixed to the rail by the clamping jaw during calibration. Fixing bolts are provided at the front and rear ends of the first bottom plate in the longitudinal direction, so as to adjust the horizontality of the top plate in the longitudinal direction. The position adjustment mechanism is provided on the first bottom plate, and the top plate is provided on the position adjustment mechanism, and the position adjustment mechanism is used to adjust the height of the top plate relative to the first bottom plate.

[0015] Furthermore, the position adjustment mechanism includes: a lifting screw, a nut seat, a first lifting plate, a second support, a first scissor leg, a second scissor leg, a third slider, a transverse guide shaft and a scissor support. The two ends of the lifting screw are movably connected to the first lifting bearing seat and the second lifting bearing seat provided on the first bottom plate, respectively, and the middle part is rotatably connected to the nut seat, and the nut seat can be driven to move in the transverse direction through the lifting screw. The two ends of the nut seat are provided with a first support, the first support is hinged to one end of the second scissor leg, and the first scissor leg and the second scissor leg are hinged through a connecting rod provided in the middle. The other end of the second scissor leg is hinged to the scissor support, and the scissor support is fixed on the first lifting plate. One end of the first scissor leg is hinged to the second support, and the second support is fixed on the first bottom plate. The other end of the second scissor leg is hinged to the third slider, the transverse guide shaft is fixed on the first lifting plate, and the third slider can slide in the transverse direction on the transverse guide shaft.

[0016] Furthermore, the position adjustment mechanism further includes a second bottom plate and a second lifting plate, the transverse guide shaft is fixed to the first lifting plate through a first transverse limit seat and a second transverse limit seat, and the top plate is arranged on the second lifting plate. The second bottom plate is connected to the first lifting plate, a second guide rail is arranged transversely on the upper edge of the second bottom plate, and a second slider is arranged on the second lifting plate, and the second slider can slide transversely on the second guide rail.

[0017] Furthermore, the second bottom plate is provided with a first traverse seat, the traverse screw rod is connected to the first traverse seat by a thread. The traverse screw rod is rotatably connected to the second traverse support, and the second traverse support is connected to the second lifting plate. The middle part of the top plate is hinged on the second lifting plate, and the top plate can rotate relative to the second lifting plate.

[0018] Furthermore, one end of the vertical limit screw is threadedly connected to the first bottom plate, and the other end is threadedly connected to the second bottom plate, and the vertical limit screw can be used to adjust the second bottom plate to move up and down. The locking nut is threadedly connected to the vertical limit screw, and is used to lock the height of the second bottom plate after the spacing between the first bottom plate and the second bottom plate is adjusted to the right position.

[0019] Furthermore, the position adjustment mechanism also includes a vertical guide sleeve and a vertical guide shaft, the vertical guide sleeve is fixed on the first base plate, one end of the vertical guide shaft is fixed on the second base plate, and the other end can movably pass through the vertical guide sleeve, and the vertical guide shaft can slide on the vertical guide sleeve.

[0020] Furthermore, the lifting screw is rotated to drive the nut seat to move, and the nut seat drives the first support and the first slider to move on the first guide rail. The second scissor leg rises to drive the first scissor leg to rise, and the first scissor leg and the second scissor leg rise to drive the second bottom plate, the first lifting plate and the second lifting plate to rise. The lifting screw is rotated in the opposite direction, and the second bottom plate, the first lifting plate and the second lifting plate are lowered.

[0021] Furthermore, a first sliding block is disposed at the bottom of the first support, and a first guide rail is disposed laterally on the upper edge of the first bottom plate. The first sliding block can slide on the first guide rail to realize the lateral movement of the nut seat.

[0022] Furthermore, two handle seats are longitudinally arranged on the upper edge of the second lifting plate, and the rotating handle is threadedly connected to the handle seat and contacts the top plate after passing through the threaded hole on the handle seat. The top plate can be rotated in a horizontal plane by the rotating handle.

[0023] Furthermore, a gasket is provided between the second support and the first base plate.

[0024] Furthermore, a threading rod extending in the transverse direction is provided on the top plate, and a threading hole for passing the lead wire is formed at one outer end of the threading rod in the transverse direction.

[0025] Furthermore, a liquid level gauge for indicating the height is also provided on the top plate, and the two liquid level gauges are connected through a water pipe.

[0026] Furthermore, the support mechanism includes a spiral tie rod and a support seat, one end of the spiral tie rod is hinged to the bottom of the first base plate, and the other end is hinged to the support seat, the support seat is used to fix the bottom of the rail, and the horizontality of the top plate along the horizontal direction is adjusted by the spiral tie rod.

[0027] The present application also specifically provides a technical implementation solution for a measuring trolley auxiliary calibration system, which includes: one or more auxiliary calibration devices as described above, which are arranged in pairs along the transverse direction on the rails, and a water pipe connected between any two auxiliary calibration devices.

[0028] By implementing the technical solution of the measuring vehicle auxiliary calibration device and system provided by the present application, the following beneficial effects are achieved:

[0029] (1) The measuring vehicle auxiliary calibration device and system of the present application can replace manual on-site calibration, quickly fit the standard rail function at the work site, and quickly realize the calibration of the horizontal, vertical and direction of the on-board sensor measurement system, which can reduce labor intensity, reduce calibration errors, and improve measurement efficiency;

[0030] (2) The auxiliary calibration device and system of the measuring trolley of the present application can be conveniently and quickly locked, installed and removed. After the auxiliary calibration device is locked on a single rail, it will not be displaced due to external force, and can be applied to a variety of rail models such as 50kg / m, 60kg / m, 75kg / m, etc. At the same time, it is small in size, simple in structure, light in weight, low in manufacturing cost, strong in practicality, easy to carry, place and promote;

[0031] (3) The auxiliary calibration device and system of the measuring trolley of the present application can quickly realize fine adjustment of lateral leveling, longitudinal leveling, and vertical height adjustment. The mechanism uses surface-to-surface contact, which not only has high structural strength, but also can further reduce calibration errors and improve calibration accuracy. It can realize joint calibration of multiple sensors and greatly improve measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work.

[0033] Figure 1 It is a three-dimensional structural schematic diagram of a specific embodiment of the measuring trolley auxiliary calibration device of the utility model;

[0034] Figure 2 It is a three-dimensional structural schematic diagram of a specific embodiment of the measuring trolley auxiliary calibration device of the utility model under another viewing angle;

[0035] Figure 3 It is a partial cross-sectional structural schematic diagram of a specific embodiment of the measuring trolley auxiliary calibration device of the utility model;

[0036] Figure 4 This is a top view of the installation structure of a specific embodiment of the measuring trolley auxiliary calibration device of the utility model;

[0037] Figure 5 It is a side view of the installation structure of a specific embodiment of the measuring trolley auxiliary calibration device of the utility model;

[0038] Figure 6 It is a structural schematic diagram of a scale in a specific embodiment of the measuring trolley auxiliary calibration device of the utility model;

[0039] Figure 7 It is a schematic diagram of the structure of a specific embodiment of the measuring vehicle auxiliary calibration system of the utility model;

[0040] Figure 8 It is a schematic front view of the structure of a specific embodiment of the measuring vehicle auxiliary calibration system of the utility model;

[0041] Fig. 9 It is a schematic top view of the structure of a specific embodiment of the measuring vehicle auxiliary calibration system of the utility model;

[0042] In the figure: 1-standard rail, 2-lead, 3-first auxiliary calibration platform, 4-second auxiliary calibration platform, 5-threading rod, 6-liquid level gauge, 7-water pipe, 8-support mechanism, 9-clamping jaw, 10-vertical guide sleeve, 11-vertical guide shaft, 12-lifting screw, 13-first lifting bearing seat, 14-nut seat, 15-vertical limit screw, 16-locking nut, 17-first support, 18-first slider, 19-first guide rail, 20-first bottom plate, 21-second bottom plate, 22-first lifting plate, 23-second lifting plate, 24-top plate, 25-rotating Handle, 26-handle seat, 27-transverse screw rod, 28-first transverse support, 29-gasket, 30-second support, 31-second slider, 32-second guide rail, 33-first scissors leg, 34-second scissors leg, 35-second lifting bearing seat, 36-connecting rod, 37-second transverse support, 38-gasket, 39-sleeve, 40-third slider, 41-transverse guide shaft, 42-first transverse limit seat, 43-second transverse limit seat, 44-scissors support, 45-level, 46-fixing bolt, 47-spiral pull rod, 48-support seat. DETAILED DESCRIPTION

[0043] Horizontal level: The horizontal height of two parallel tracks, also known as the left-right level of the tracks;

[0044] Vertical level: the height of the same track from front to back, also known as the longitudinal level of the line;

[0045] Track string: a measuring system for detecting the direction of the track on a tamping vehicle. The string is located in the middle of the vehicle bottom. Taking the three-point method as an example, the front and rear of the track string are fixed on the trolley at points B and D respectively. The string at point C passes through the track positron sensor and can move freely to detect the positron value of the line.

[0046] Leveling string: The measuring system on the tamping vehicle to detect the longitudinal level of the left and right rails is located on the left and right sides of the vehicle. Taking the three-point method as an example, the left leveling string is fixed at the top fixed points of the trolley at points B and D respectively. The leveling string at point M passes through the leveling sensor and can move freely to detect the longitudinal level of the rails.

[0047] Measuring trolley: There are generally 4 measuring trolleys on the tamping vehicle, which are called A, B, C and D point measuring trolleys respectively.

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] As attached Figure 1 To Attachment Fig. 9 As shown, a specific embodiment of the measuring vehicle auxiliary calibration device and system of the present application is given, and the present application is further described below in conjunction with the drawings and specific embodiments.

[0050] Example 1

[0051] As attached Figure 1 To Attachment Figure 5 As shown, an embodiment of the auxiliary calibration device of the measuring trolley of the present application specifically includes: a support mechanism 8, a position adjustment mechanism, a first bottom plate 20 and a top plate 24. One end of the support mechanism 8 is connected to the bottom of the first bottom plate 20, and the other end is fixed to the bottom of the rail 1 during calibration, and is used to adjust the horizontality of the top plate 24 in the lateral direction. The bottom of the first bottom plate 20 is provided with a clamping jaw 9 along the longitudinal direction (i.e., the Y direction), and the first bottom plate 20 is fixed to the rail 1 through the clamping jaw 9 during calibration. The first bottom plate 20 is provided with fixing bolts 46 at the front and rear ends along the longitudinal direction, which are used to adjust the horizontality of the top plate 24 in the longitudinal direction. The position adjustment mechanism is arranged on the first bottom plate 20, and the top plate 24 is arranged on the position adjustment mechanism. The position adjustment mechanism is used to adjust the height of the top plate 24 relative to the first bottom plate 20.

[0052] The position adjustment mechanism further includes: a lifting screw 12, a nut seat 14, a first lifting plate 22, a second support 30, a first scissor leg 33, a second scissor leg 34, a third slider 40, a lateral guide shaft 41 and a scissor support 44. The two ends of the lifting screw 12 are movably connected to the first lifting bearing seat 13 and the second lifting bearing seat 35 arranged on the first bottom plate 20, and the middle part is rotatably connected to the nut seat 14. The lifting screw 12 can drive the nut seat 14 to move horizontally, as shown in the attached Figure 5 As shown. The first lifting bearing seat 13 and the second lifting bearing seat 35 are fixed to the first base plate 20 by bolts, and a bearing is arranged between the lifting screw 12 and the first lifting bearing seat 13 and the second lifting bearing seat 35. The lifting screw 12 is reserved for installing a handwheel interface, and the nut seat 14 can be driven to move freely in the horizontal direction (i.e., the X direction) by rotating the lifting screw 12. A first support 17 is fixed to each end of the nut seat 14 by bolts, and the bottom of the first support 17 is connected to a first slider 18 by bolts. The first support 17 is arranged at both ends of the nut seat 14, and the first support 17 is hinged to one end of the second scissors leg 34, and the first scissors leg 33 is hinged to the middle part of the second scissors leg 34 by a connecting rod 36. The other end of the second scissors leg 34 is hinged to the scissors support 44, and the scissors support 44 is fixed to the first lifting plate 22 by bolts. One end of the first scissor leg 33 is hinged to the second support 30 through a pin, and the second support 30 is fixed to the first base plate 20. The other end of the first scissor leg 33 is hinged to the third slider 40, and the two second scissor legs 33 are hinged together through the third slider 40. The third slider 40 cooperates with two transverse guide shafts 41, and the third slider 40 can slide freely in the transverse direction on the transverse guide shaft 41.

[0053] The position adjustment mechanism further includes a second bottom plate 21 and a second lifting plate 23, the lateral guide shaft 41 is fixed on the first lifting plate 22, and the top plate 24 is arranged on the second lifting plate 23. The second bottom plate 21 is connected to the first lifting plate 22, a second guide rail 32 is arranged on the second bottom plate 21 in the horizontal direction, and a second slider 31 is arranged at the bottom of the second lifting plate 23. The second guide rail 32 is fixed on the second bottom plate 21 by bolts, and the second slider 31 is fixed on the second lifting plate 23 by bolts, and the second slider 31 can slide freely in the horizontal direction on the second guide rail 32.

[0054] As attached Figure 3 As shown, the transverse guide shaft 41 is further fixed to the first lifting plate 22 through the first transverse limit seat 42 and the second transverse limit seat 43. The transverse guide shaft 41 is fixed to the first transverse limit seat 42 and the second transverse limit seat 43 by bolts, and the first transverse limit seat 42 and the second transverse limit seat 43 are fixed to the first lifting plate 22 by bolts.

[0055] As attached Figure 1As shown, the position adjustment mechanism further includes a vertical guide sleeve 10 and a vertical guide shaft 11. The vertical guide sleeve 10 is fixed on the first base plate 20, one end of the vertical guide shaft 11 is fixed on the second base plate 21, and the other end can movably pass through the vertical guide sleeve 10, and the vertical guide shaft 11 can slide on the vertical guide sleeve 10. The vertical guide sleeve 10 is fixed to the first base plate 20 by bolts, one end of the vertical guide shaft 11 is fixed to the second base plate 21 by bolts, and the other end is in a free state, and the vertical guide shaft 11 can slide freely on the vertical guide sleeve 10. One end of the vertical limit screw 15 is threadedly connected to the first base plate 20, and the other end is threadedly connected to the second base plate 21. By rotating the vertical limit screw 15, the second base plate 21 can move up and down. The locking nut 16 is threadedly connected to the vertical limit screw 15. After the height between the first base plate 20 and the second base plate 21 is adjusted, the locking nut 16 is rotated to lock the height.

[0056] As attached Figure 1 As shown, a gasket 29 is further provided between the second support 30 and the first base plate 20, and the second support 30 and the gasket 29 are fixed to the first lifting plate 22 by bolts. The second lifting plate 23 is fixed to the first lifting plate 22 by bolts, and the second base plate 21 is connected to the first lifting plate 22 by bolts. The second guide rail 32 is fixed to the second base plate 21 by bolts, and the second slider 31 is fixed to the second lifting plate 23 by bolts. A first slider 18 is provided at the bottom of the first support 17, and a first guide rail 19 is provided on the first base plate 20 in the horizontal direction. The first slider 18 can slide on the first guide rail 19, and the first guide rail 19 is fixed to the first base plate 20 by bolts to realize the movement of the nut seat 14 in the horizontal direction (i.e., the X direction).

[0057] The height of the auxiliary calibration device along the vertical direction (i.e., Z direction) is adjusted as follows:

[0058] Rotate the lifting screw 12 to move the nut seat 14, and the nut seat 14 drives the first support 17 and the first slider 18 to move on the first guide rail 19. The second scissor leg 34 rises to drive the first scissor leg 33 to rise, and the first scissor leg 33 and the second scissor leg 34 rise to drive the second bottom plate 21, the first lifting plate 22 and the second lifting plate 23 to rise. Reversely rotate the lifting screw 12, and the second bottom plate 21, the first lifting plate 22 and the second lifting plate 23 fall. Use the same method to adjust the vertical height leveling of the remaining auxiliary calibration devices, and finally complete the horizontal and vertical leveling adjustment of the entire auxiliary calibration system.

[0059] As attached Figure 3As shown, the support mechanism 8 further includes a spiral tie rod 47 and a support seat 48, one end of the spiral tie rod 47 is hinged to the bottom of the first bottom plate 20, and the other end is hinged to the support seat 48, and the support seat 48 is used to fix the bottom of the rail 1. When calibrating, the horizontal adjustment of the top plate 24 in the horizontal direction is achieved by rotating the sleeve in the middle of the spiral tie rod 47. The first bottom plate 20 is provided with fixing bolts 46 at the front and rear ends in the longitudinal direction, and the horizontal adjustment of the top plate 24 in the longitudinal direction is achieved by rotating the fixing bolts 46. When calibrating, the support mechanism 8 is sleeved on one side of the bottom of the rail 1 and fixed and fastened by bolts. The spiral tie rod 47 specifically adopts a combination structure of a middle internal threaded sleeve and two end screws. The level 45 is fixed to the top plate 24 by bolts, and the data on the level 45 is observed to ensure that the values ​​in the X and Y directions are within the specified range. The X direction value is achieved by rotating the middle sleeve of the spiral tie rod 47, and the Y direction value is achieved by adjusting the front and rear two fixing bolts 46. After leveling in both X and Y directions, tighten the fixing bolts of the clamping jaw 9.

[0060] As attached Figure 1 As shown, a first traverse seat 28 is provided on the second bottom plate 21, and the traverse screw rod 27 is connected to the first traverse seat 28 by a thread. The traverse screw rod 27 is rotatably connected to the second traverse support 37, and the second traverse support 37 is connected to the second lifting plate 23. The middle part of the top plate 24 is hinged on the second lifting plate 23, and the top plate 24 can rotate relative to the second lifting plate 23. Rotating the traverse screw rod 27 can drive the second traverse support 37 to move in the lateral direction (i.e., the X direction), and the second traverse support 37 drives the first lifting plate 22, the second lifting plate 23 and the top plate 24 to move in the lateral direction, and the top plate 24 further drives the threading rod 5 to move in the X direction.

[0061] As attached Figure 1 As shown, two handle seats 26 are arranged in the longitudinal direction on the second lifting plate 23, and the handle seats 26 are fixedly connected to the top plate 24 by bolts, and the rotating handle 25 is threadedly connected to the handle seat 26 and contacts the top plate 24 after passing through the threaded hole on the handle seat 26. By rotating the two rotating handles 25, the top plate 24 is rotated in the horizontal plane (and the XY plane), and the top plate 24 further drives the threading rod 5 to rotate.

[0062] The X-axis and XY-plane rotation positions of the first auxiliary calibration platform 3 are adjusted as follows:

[0063] The traverse screw rod 27 is threadedly connected to the first traverse seat 28, and the first traverse seat 28 is fixed to the second bottom plate 21 by bolts. The traverse screw rod 27 is fixedly connected to the second traverse support 37 but can rotate relatively, and the second traverse support 37 is fixedly connected to the second lifting plate 23 by bolts. The top plate 24 is hinged to the second lifting plate 23 by bolts and using washers 38 and shaft sleeves 39, and the top plate 24 can rotate relative to the second lifting plate 23.

[0064] One end of the vertical limit screw 15 is threadedly connected to the first bottom plate 20, and the other end is threadedly connected to the second bottom plate 21. The second bottom plate 21 can be moved up and down by rotating the vertical limit screw 15. The locking nut 16 is threadedly connected to the vertical limit screw 15. When the height between the first bottom plate 20 and the second bottom plate 21 is adjusted to the right position, the height of the second bottom plate 21 is locked by rotating the locking nut 16.

[0065] As attached Figure 4 As shown, a threading rod 5 extending in the transverse direction is provided on the top plate 24, and a threading hole K for passing the lead wire 2 is opened at one end of the threading rod 5 in the transverse direction. Figure 6 As shown. As a typical embodiment of the present invention, the lead 2 can be specifically a physical pull line, such as a fishing line, or a line laser. When calibrating the direction, the lead 2 passes through the threading hole K of the scale 5 on one side in the longitudinal direction. When calibrating the direction, the lead 2 passes through the threading hole K of the threading rod 5 on one side in the longitudinal direction. A liquid level gauge 6 for indicating the height is also provided on the top plate 24, and the two liquid level gauges 6 are connected by a water pipe 7. When calibrating, the height of the top plates 24 of the two auxiliary calibration devices is adjusted so that the liquid levels of the liquid level gauges 6 on both sides are at the same scale value.

[0066] Example 1 proposes a new type of auxiliary calibration device, which is installed on a steel rail 1 of a model such as 50kg / m, 60kg / m, and 75kg / m, and is used to simulate a "standard rail" at the work site. The auxiliary calibration device described in this embodiment can be conveniently and quickly locked, installed, and removed. After the auxiliary calibration device is locked on a single steel rail 1, it will not be displaced due to external forces. At the same time, the auxiliary calibration device is small in size, light in weight, easy to carry and place, and can quickly achieve lateral leveling, longitudinal leveling, and vertical height adjustment. The auxiliary calibration device described in the specific embodiment of the present application eliminates the manual on-site calibration link, reduces labor intensity, reduces calibration errors, improves calibration accuracy, and realizes the joint calibration of multiple sensors, improves metering efficiency, and provides effective guarantees for the efficient operation of the tamping vehicle.

[0067] Example 2

[0068] As attached Figure 7 To Attachment Fig. 9As shown, an embodiment of the measuring trolley auxiliary calibration system of the present application specifically includes: one or more auxiliary calibration devices as described in Example 1 arranged in pairs along the horizontal direction on the rail 1, and a water pipe 7 connected between any two auxiliary calibration devices. In this embodiment, the auxiliary calibration device further includes a first auxiliary calibration device 3 and a second auxiliary calibration device 4. A (double-pass) liquid level gauge 6 for indicating the height of the top plate 24 is installed on the threading rod 5 of the first auxiliary calibration device 3 and the second auxiliary calibration device 4. The two liquid level gauges 6 are connected by a water pipe 7, and the water pipe 7 is filled with water and fixed on one side of the liquid level gauge 6. There is a scale display on the liquid level gauge 6. The lifting screw rod 12 on the first auxiliary calibration device 3 and the second auxiliary calibration device 4 is adjusted to adjust the height of the top plate 24 so that the liquid levels of the liquid level gauges 6 on both sides are at the same scale value, which is regarded as the first auxiliary calibration device 3 and the second auxiliary calibration device 4 The height is consistent. A first auxiliary calibration device 3 and a second auxiliary calibration device 4 form an auxiliary calibration platform.

[0069] As attached Figure 7 As shown, a plurality of first auxiliary calibration devices 3 are installed on one rail 1, and the same number of second auxiliary calibration devices 4 are installed on another rail 1. The installation positions of the first auxiliary calibration devices 3 and the second auxiliary calibration devices 4 are symmetrical about the longitudinal center line between the two rails 1. The rail 1 is located at the center position of the clamping jaws 9 of the first auxiliary calibration device 3 and the second auxiliary calibration device 4 in the transverse direction.

[0070] Taking the adjustment of the first auxiliary marking device 3 as an example, the directions of a plurality of first auxiliary marking devices 3 on a rail 1 are adjusted in the following manner:

[0071] The threading rod 5 is fixed to the top plate 24 by bolts, and a threading hole K is opened at one end of the outer side of the threading rod 5 for the lead wire 2 to pass through. Ensure that the lead wire 2 passes through the threading holes K of the front and rear first auxiliary calibration devices 3, adjust the lateral position of the middle first auxiliary calibration device 3, ensure that the lead wire 2 can pass through the threading holes K of all the first auxiliary calibration devices 3 on one rail 1, and complete the direction adjustment of the first auxiliary calibration device 3. Use the same method to complete the direction adjustment of the second auxiliary calibration device 4 on another rail 1. Rotate the transverse screw 27 to drive the threading rod 5 to move horizontally through the top plate 24. Rotate the two rotating handles 25 to drive the threading rod 5 to rotate through the rotation of the top plate 24.

[0072] A (double-pass) level gauge 6 is installed on each of the first auxiliary calibration platform 3 and the second auxiliary calibration platform 4. The level gauge 6 is fixedly connected to the top plate 24 by bolts. The two level gauges 6 are connected by a water pipe 7, and water is poured into the water pipe 7. There are scales displayed on the level gauge 6. The height of the first auxiliary calibration platform 3 and the second auxiliary calibration platform 4 is adjusted so that the liquid levels of the level gauges 6 on both sides are at the same scale value, which is regarded as the first auxiliary calibration platform 3 and the second auxiliary calibration platform 4. A first auxiliary calibration platform 3 and a second auxiliary calibration platform 4 constitute a pair of auxiliary calibration platforms.

[0073] The auxiliary calibration system described in Example 2 places an auxiliary calibration device on the rail 1 at the work site at a certain interval along the longitudinal direction of the line, which is used to simulate the "standard rail" on site. The auxiliary calibration devices placed on the two rails 1 are symmetrical about the center line of the rail. All the auxiliary calibration devices are combined into a complete set of auxiliary calibration system for the measuring trolley. The mechanical calibration process of the measuring system of the tamping vehicle mainly includes: parking the wheels of the measuring trolley above the auxiliary calibration device, quickly adjusting the longitudinal level and direction of each auxiliary calibration device on a rail 1 of the "standard rail", the lateral level of each auxiliary calibration device on the two rails 1 of the "standard rail" and the tread of the measuring trolley wheel. The wheels of the measuring trolley are lowered to contact with the auxiliary calibration device, and the auxiliary calibration device is used as the metrological reference for detecting each sensor of the measuring trolley.

[0074] Example 3

[0075] An embodiment of a method for auxiliary calibration of a measuring trolley based on the system described in Example 2 of the present application, the auxiliary calibration device includes a support mechanism 8, a position adjustment mechanism, a first bottom plate 20 and a top plate 24. One end of the support mechanism 8 is connected to the bottom of the first bottom plate 20, and the other end is fixed to the bottom of the rail 1 during calibration. A clamping jaw 9 is provided at the bottom of the first bottom plate 20 in the longitudinal direction, and the first bottom plate 20 is fixed to the rail 1 by the clamping jaw 9 during calibration. Fixing bolts 46 are provided at the front and rear ends of the first bottom plate 20 in the longitudinal direction, the position adjustment mechanism is provided on the first bottom plate 20, and the top plate 24 is provided on the position adjustment mechanism. The method specifically includes the following steps:

[0076] S11) The paired auxiliary calibration devices 3 are symmetrically installed on the left and right rails 1 in the transverse direction. The horizontality of the top plate 24 is adjusted by the support mechanism 8, and the horizontality of the top plate 24 is adjusted by the fixing bolts 46.

[0077] S12) Connect a water-filled water pipe 7 between each pair of auxiliary calibration devices along the horizontal direction, and adjust the height of the top plate 24 relative to the first bottom plate 20 through a position adjustment mechanism so that the liquid levels at both ends of the water pipe 7 are at the same scale value, thereby completing the height leveling of the auxiliary calibration device to achieve horizontal leveling.

[0078] The measurement vehicle auxiliary calibration method described in this embodiment further includes the following steps:

[0079] S13) Connect water pipes 7 for water injection between all auxiliary calibration devices along the longitudinal direction, and adjust the height of the top plate 24 relative to the first bottom plate 20 through the position adjustment mechanism so that the liquid levels at both ends of all water pipes 7 are at the same scale value, completing the height leveling of all auxiliary calibration devices to achieve horizontal and vertical leveling adjustment.

[0080] A threading rod 5 extending in the transverse direction is provided on the top plate 24. The auxiliary calibration method of the measuring trolley further includes the following direction adjustment steps:

[0081] S14) Pass the lead wire 2 through the threading holes K of the scale 5 located at the front and rear respectively, and then adjust the lateral position of the auxiliary calibration device located in the middle to ensure that the lead wire 2 can form a straight line and pass through the threading hole K of the scale 5 on one side in the longitudinal direction to achieve the direction adjustment of the side rail 1.

[0082] The auxiliary calibration device also includes a lifting screw 12, a nut seat 14, a first lifting plate 22, a second support 30, a first scissor leg 33, a second scissor leg 34, a third slider 40, a transverse guide shaft 41 and a scissor support 44. One end of the lifting screw 12 is movably connected to the first lifting bearing seat 13 arranged on the first base plate 20, and the other end is rotatably connected to the nut seat 14. The first support 17 is arranged at both ends of the nut seat 14, and the first support 17 is hinged to one end of the second scissor leg 34. The first scissor leg 33 and the second scissor leg 34 are hinged by a connecting rod 36 arranged in the middle. The other end of the second scissor leg 34 is hinged to the scissor support 44, and the scissor support 44 is fixed on the first lifting plate 22. One end of the first scissor leg 33 is hinged to the second support 30, and the second support 30 is fixed on the first base plate 20. The other end of the first scissor leg 33 is hinged to the third slider 40, and the third slider 40 cooperates with the transverse guide shaft 41, and the transverse guide shaft 41 is fixed on the first lifting plate 22. The third slider 40 can slide horizontally on the transverse guide shaft 41. The bottom of the first support 17 is provided with a first slider 18, and the first bottom plate 20 is provided with a first guide rail 19 in the transverse direction. The first slider 18 can slide on the first guide rail 19 to realize the lateral movement of the nut seat 14. The height adjustment process of steps S12) and S13) further includes:

[0083] The rotation of the lifting screw 12 drives the nut seat 14 to move, and the nut seat 14 drives the first support 17 and the first slider 18 to move on the first guide rail 19. The second scissor leg 34 rises to drive the first scissor leg 33 to rise, and the first scissor leg 33 and the second scissor leg 34 rise to drive the second bottom plate 21, the first lifting plate 22 and the second lifting plate 23 to rise. The lifting screw 12 is rotated in the reverse direction, and the second bottom plate 21, the first lifting plate 22 and the second lifting plate 23 are lowered.

[0084] The second bottom plate 21 is provided with a first traverse seat 28, and the traverse screw rod 27 is connected to the first traverse seat 28 by a thread. The traverse screw rod 27 is rotatably connected to the second traverse support 37, and the second traverse support 37 is connected to the second lifting plate 23. The second bottom plate 21 is connected to the first lifting plate 22, and a second guide rail 32 is arranged on the second bottom plate 21 in the transverse direction, and a second slider 31 is arranged at the bottom of the second lifting plate 23, and the second slider 31 can slide in the transverse direction on the second guide rail 32. After step S14), the following traverse adjustment steps are also included:

[0085] S15) Rotate the transverse screw rod 27 to drive the second transverse support 37 to move transversely, the second transverse support 37 drives the first lifting plate 22, the second lifting plate 23 and the top plate 24 to move transversely, and the top plate 24 drives the threading rod 5 to move transversely.

[0086] The middle part of the top plate 24 is hinged on the second lifting plate 23, and the top plate 24 can rotate relative to the second lifting plate 23. Two handle seats 26 are arranged on the second lifting plate 23 in the longitudinal direction, and the rotating handle 25 is threadedly connected with the handle seat 26 and contacts the top plate 24 after passing through the threaded hole on the handle seat 26. After step S15), the following horizontal plane rotation angle adjustment steps are also included:

[0087] S16) adjusting the rotating handle 25 so that the top plate 24 rotates relative to the second lifting plate 23, thereby adjusting the rotation angle of the top plate 24 and driving the threading rod 5 to rotate.

[0088] The support mechanism 8 further includes a spiral tie rod 47 and a support seat 48. One end of the spiral tie rod 47 is hinged to the bottom of the first bottom plate 20, and the other end is hinged to the support seat 48. The support seat 48 is used to fix the bottom of the rail 1. Step S11) further includes:

[0089] Fix the support seat 48 to the outside of the bottom of the rail 1, observe the data of the level 45 placed on the top plate 24, and ensure that the horizontal and vertical values ​​are within the specified range. The horizontal value is adjusted by rotating the sleeve in the middle of the spiral tie rod 47, and the vertical value is adjusted by rotating the two fixing bolts 46 along the longitudinal direction. After the horizontal and vertical levels are leveled, tighten the clamp 9 on the rail 1.

[0090] Step S11) further comprises:

[0091] The same number of auxiliary calibration devices are installed on the left and right rails 1, and the installation positions of the auxiliary calibration devices are symmetrical about the longitudinal center line between the two rails 1. In step S11), the rail 1 is located at the center position of the jaws 25 of the auxiliary calibration device in the transverse direction.

[0092] A liquid level gauge 6 for indicating the height of the top plate 24 is provided on the threading rod 5. In steps S12) and S13), the end of the water pipe 7 is fixed to one side of the liquid level gauge 6 to indicate the scale value of the liquid level in the water pipe 7.

[0093] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly disposed on the other element or indirectly disposed on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0094] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0095] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0096] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0097] By implementing the technical solution of the measuring vehicle auxiliary calibration device and system described in the specific embodiments of the present application, the following technical effects can be achieved:

[0098] (1) The measuring vehicle auxiliary calibration device and system described in the specific embodiments of the present application can replace manual on-site calibration, quickly fit the standard rail function at the work site, and quickly realize the calibration of the horizontal, vertical and direction of the on-board sensor measurement system, which can reduce labor intensity, reduce calibration errors, and improve measurement efficiency;

[0099] (2) The measuring trolley auxiliary calibration device and system described in the specific embodiment of the present application can be conveniently and quickly locked, installed and removed. After the auxiliary calibration device is locked on a single rail, it will not be displaced due to external force, and can be applied to a variety of rail models such as 50kg / m, 60kg / m, 75kg / m, etc. At the same time, it has a small size, a simple structure, a light weight, a low manufacturing cost, strong practicality, and is easy to carry, place and promote;

[0100] (3) The measuring trolley auxiliary calibration device and system described in the specific embodiments of the present application can quickly realize fine adjustment of lateral leveling, longitudinal leveling, and vertical height adjustment. The mechanism uses surface-to-surface contact, which not only has high structural strength, but also can further reduce calibration errors and improve calibration accuracy. It can realize the joint calibration of multiple sensors and greatly improve measurement efficiency.

[0101] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0102] The above is only a preferred embodiment of the present application, and does not constitute any formal limitation to the present application. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes, without departing from the spirit and technical solution of the present application. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present application, which does not depart from the content of the technical solution of the present application, still falls within the scope of protection of the technical solution of the present application.

Claims

1. A measuring vehicle auxiliary calibration device, characterized in that: include: A supporting mechanism (8), a position adjustment mechanism, a first bottom plate (20) and a top plate (24); One end of the support mechanism (8) is connected to the first bottom plate (20), and the other end is fixed to the bottom of the rail (1) during calibration, so as to adjust the horizontality of the top plate (24) in the horizontal direction; a clamping claw (9) is provided at the bottom of the first bottom plate (20) in the longitudinal direction, and the first bottom plate (20) is fixed to the rail (1) through the clamping claw (9) during calibration; fixing bolts (46) are provided at the front and rear ends of the first bottom plate (20) in the longitudinal direction, so as to adjust the horizontality of the top plate (24) in the longitudinal direction; the position adjustment mechanism is provided on the first bottom plate (20), and the top plate (24) is provided on the position adjustment mechanism, and the position adjustment mechanism is used to adjust the height of the top plate (24) relative to the first bottom plate (20).

2. The measuring vehicle auxiliary calibration device according to claim 1, characterized in that: The position adjustment mechanism comprises: a lifting screw (12), a nut seat (14), a first lifting plate (22), a second support (30), a first scissor leg (33), a second scissor leg (34), a third slider (40), a transverse guide shaft (41) and a scissor support (44); the two ends of the lifting screw (12) are respectively movably connected to a first lifting bearing seat (13) and a second lifting bearing seat (35) arranged on the first bottom plate (20), and the middle part is rotatably connected to the nut seat (14), and the lifting screw (12) can drive the nut seat (14) to move in the lateral direction; the two ends of the nut seat (14) are provided with a first support (17), and the first support (17) is connected to the first bottom plate (20). One end of the second scissors leg (34) is hinged, and the first scissors leg (33) and the second scissors leg (34) are hinged via a connecting rod (36) arranged in the middle; the other end of the second scissors leg (34) is hinged to a scissors support (44), and the scissors support (44) is fixed on the first lifting plate (22); one end of the first scissors leg (33) is hinged to the second support (30), and the second support (30) is fixed on the first bottom plate (20); the other end of the first scissors leg (33) is hinged to the third slider (40), and the transverse guide shaft (41) is fixed on the first lifting plate (22), and the third slider (40) can slide laterally on the transverse guide shaft (41).

3. The measuring vehicle auxiliary calibration device according to claim 2, characterized in that: The position adjustment mechanism also includes a second bottom plate (21) and a second lifting plate (23); the transverse guide shaft (41) is fixed on the first lifting plate (22) through a first transverse limit seat (42) and a second transverse limit seat (43); the top plate (24) is arranged on the second lifting plate (23); the second bottom plate (21) is connected to the first lifting plate (22); a second guide rail (32) is arranged on the second bottom plate (21) in the transverse direction; the second lifting plate (23) is provided with a second slider (31); the second slider (31) can slide in the transverse direction on the second guide rail (32).

4. The measuring vehicle auxiliary calibration device according to claim 3, characterized in that: A first transverse shift seat (28) is provided on the second bottom plate (21), and the first transverse shift seat (28) is connected to the transverse shift screw (27) by means of threads; the transverse shift screw (27) is rotatably connected to the second transverse shift support (37), and the second transverse shift support (37) is connected to the second lifting plate (23); the middle part of the top plate (24) is hinged on the second lifting plate (23), and the top plate (24) can rotate relative to the second lifting plate (23).

5. The measuring vehicle auxiliary calibration device according to claim 3 or 4, characterized in that: One end of the vertical limit screw (15) is threadedly connected to the first base plate (20), and the other end is threadedly connected to the second base plate (21), and the second base plate (21) can be adjusted to move up and down through the vertical limit screw (15); a locking nut (16) is threadedly connected to the vertical limit screw (15) and is used to lock the height of the second base plate (21) after the distance between the first base plate (20) and the second base plate (21) is adjusted to the right position.

6. The measuring vehicle auxiliary calibration device according to claim 5, characterized in that: The position adjustment mechanism further comprises a vertical guide sleeve (10) and a vertical guide shaft (11); the vertical guide sleeve (10) is fixed on the first base plate (20); one end of the vertical guide shaft (11) is fixed on the second base plate (21); the other end can movably pass through the vertical guide sleeve (10); and the vertical guide shaft (11) can slide on the vertical guide sleeve (10).

7. The measuring vehicle auxiliary calibration device according to claim 3, 4 or 6, characterized in that: The lifting screw rod (12) is rotated to drive the nut seat (14) to move, and the nut seat (14) drives the first support seat (17) and the first slider (18) to move on the first guide rail (19); the second scissors leg (34) rises to drive the first scissors leg (33) to rise, and the first scissors leg (33) and the second scissors leg (34) rise to drive the second bottom plate (21), the first lifting plate (22) and the second lifting plate (23) to rise; the lifting screw rod (12) is rotated in the opposite direction, and the second bottom plate (21), the first lifting plate (22) and the second lifting plate (23) are lowered.

8. The measuring vehicle auxiliary calibration device according to claim 7, characterized in that: A first sliding block (18) is arranged at the bottom of the first support (17), and a first guide rail (19) is arranged on the first bottom plate (20) in a transverse direction. The first sliding block (18) can slide on the first guide rail (19) to realize the transverse movement of the nut seat (14).

9. The measuring vehicle auxiliary calibration device according to claim 3, 4, 6 or 8, characterized in that: Two handle seats (26) are arranged on the second lifting plate (23) in the longitudinal direction. The rotating handle (25) is threadedly connected to the handle seat (26) and contacts the top plate (24) after passing through the threaded hole on the handle seat (26). The top plate (24) can be rotated in a horizontal plane through the rotating handle (25).

10. The measuring vehicle auxiliary calibration device according to claim 9, characterized in that: A gasket (29) is also provided between the second support (30) and the first bottom plate (20).

11. The measuring vehicle auxiliary calibration device according to claim 1, 2, 3, 4, 6, 8 or 10, characterized in that: The top plate (24) is provided with a threading rod (5) extending in the transverse direction, and a threading hole (K) for passing the lead wire (2) is provided at one end of the outer side in the transverse direction of the threading rod (5).

12. The measuring vehicle auxiliary calibration device according to claim 11, characterized in that: A liquid level gauge (6) for indicating the height is also provided on the top plate (24), and the two liquid level gauges (6) are connected via a water pipe (7).

13. The measuring vehicle auxiliary calibration device according to claim 1, 2, 3, 4, 6, 8, 10 or 12, characterized in that: The support mechanism (8) comprises a spiral tie rod (47) and a support seat (48), one end of the spiral tie rod (47) is hinged to the bottom of the first bottom plate (20), and the other end is hinged to the support seat (48), the support seat (48) is used to fix the bottom of the rail (1), and the horizontal degree of the top plate (24) in the horizontal direction is adjusted by the spiral tie rod (47).

14. A measuring vehicle auxiliary calibration system, characterized in that: include: One or more auxiliary marking devices as claimed in any one of claims 1 to 13 are arranged in pairs on the rail (1) in the transverse direction, and a water pipe (7) connected between any two auxiliary marking devices.

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