High-precision automatic rail aligner and working method thereof

Abstract

The application discloses a high-precision automatic rail aligning device and a working method thereof, relates to the technical field of rail alignment before rail welding in railway maintenance, and comprises a plurality of sleepers, two rails are placed on the sleepers, the position and spatial posture of the rails are measured through a measuring mechanism between the two rails, and the position and spatial posture of the rails are adjusted through an adjusting mechanism; the adjusting mechanism comprises an adjusting frame, a reciprocating moving frame is arranged on the adjusting frame, a Y-shaped frame is fixedly installed on the moving frame, and a mechanical clamp moving up and down is arranged on the Y-shaped frame; the measuring mechanism comprises two measuring seats in butt joint, and five displacement sensors in X, Y and Z axial directions and Z axial surface directions are arranged on one of the measuring seats. The position and posture difference between the two rails are measured and calculated through the measuring mechanism, the measured data are transmitted to the adjusting mechanism, the position and spatial posture of the rails are adjusted by the adjusting mechanism, automatic rail alignment is realized, and the precision is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail alignment, in particular to a high-precision automatic rail aligner and a working method thereof. BACKGROUND

[0002] In railway maintenance, rail welding is an important work. When welding rails, it is necessary to ensure that the end faces of two rails are flush, so rail end face alignment is needed before rail welding. The existing rail alignment methods mainly include manual alignment and device alignment correction on large rail welding vehicles. The former is time-consuming and laborious, has large errors and some tools do not meet the technical specifications. The latter has a large device volume, occupies space and limits the operation flexibility in some narrow or complex environments, and does not have economics and convenience. SUMMARY

[0003] The present application aims to provide a high-precision automatic rail aligner and a working method thereof, which solves the technical problems of manual alignment and device alignment correction on large rail welding vehicles. The former is time-consuming and laborious, has large errors and some tools do not meet the technical specifications. The latter has a large device volume, occupies space and limits the operation flexibility in some narrow or complex environments, and does not have economics and convenience.

[0004] The object of the present application can be achieved by the following technical solutions:

[0005] A high-precision automatic rail aligner, comprising a plurality of sleepers, a plurality of the sleepers being provided with two rails, the two rails being measured in position and spatial attitude by a measuring mechanism, and the position and spatial attitude of the rails being adjusted by an adjusting mechanism.

[0006] The adjusting mechanism comprises an adjusting frame, a moving frame reciprocatingly arranged on the adjusting frame, a Y-shaped frame fixedly installed on the moving frame, and a mechanical clamp moving up and down arranged on the Y-shaped frame.

[0007] The measuring mechanism comprises two measuring seats in abutment, at least five displacement sensors in X, Y and Z axial and Z-axis surface directions being arranged on one of the measuring seats.

[0008] As a further scheme of the present application, a first turbine housing is fixedly installed on one side of the adjusting frame, a first servo motor is fixedly installed on one side of the first turbine housing, the first servo motor drives the rotation of a lead screw through a turbine and a worm, a first threaded sleeve is sleeved on the lead screw, a plug connector is fixedly installed at the end of the first threaded sleeve, and the plug connector cooperates with a plug-in seat on the moving frame. When the lead screw rotates, the first threaded sleeve moves to drive the horizontal movement of the moving frame.

[0009] As a further scheme of the present application, the mobile frame is slidably connected with the slide rails arranged on the two sides of the inner wall of the adjusting frame.

[0010] As a further scheme of the present application, the Y-shaped frame is provided with a second turbine housing, one side of the second turbine housing is fixedly provided with a second servo motor, the second servo motor drives a second screw rod to rotate through a turbine and a worm, the outer thread of the second screw rod is connected with a second threaded sleeve, the outer side of the second threaded sleeve is fixedly provided with a triangular plate, the two sides of the triangular plate are provided with pulleys, and the pulleys are slidably connected with slide columns arranged on the inner wall of the mobile frame.

[0011] As a further scheme of the present application, the inner part of the triangular plate is rotatably connected with a rotating disc, two arc-shaped pin shaft grooves are formed in the rotating disc, the pin shaft grooves are connected with mechanical clamps through pin shafts, and the upper end of the mechanical clamp is connected with the triangular plate through a guide wheel.

[0012] As a further scheme of the present application, the inner wall of the mechanical clamp is provided with a bottom surface supporting part.

[0013] As a further scheme of the present application, the bottom center of the triangular plate is provided with a top block, and the top block is located between the two mechanical clamps.

[0014] As a further scheme of the present application, the bottom of the adjusting frame is provided with three balance bolts, and the adjusting frame is provided with a level.

[0015] As a further scheme of the present application, the inner part of each of the two measuring seats is provided with a plurality of supporting rollers, and the adjacent side of the two measuring seats is closed, and the side away from the adjacent side is provided with an opening matched with the steel rail.

[0016] As a further scheme of the present application, a working method of a high-precision automatic rail aligner comprises the following steps:

[0017] Step one, first, insert two steel rails into two measuring seats respectively, then fix the two adjusting mechanisms on the sleepers through the balance bolts, and adjust the level through the level;

[0018] Step two, measure the positions of the two steel rails through five displacement sensors in the X, Y and Z axial directions of the measuring mechanism, measure the position and spatial attitude difference of the two steel rails, and then start the adjusting mechanism to adjust the position;

[0019] Step three, first rotate the rotating disc, drive the mechanical clamp to clamp the rail; then start the first servo motor, drive the screw rod through the worm gear, and then drive the first threaded sleeve to move horizontally, push the moving frame and Y-shaped frame to move horizontally as a whole; and start the second servo motor, drive the second screw rod through the worm gear, and then drive the second threaded sleeve to move up and down, and then drive the triangular plate and the mechanical clamp to move up and down as a whole, adjust the height of the rail, until it meets the requirements.

[0020] The beneficial effects of the present application are:

[0021] The present application measures the position difference between the two rails through the measuring mechanism, and transmits the measured data to the adjusting mechanism, which adjusts the position and spatial attitude of the rail, realizes automatic rail adjustment, and has higher precision.

[0022] The present application realizes the measurement of the overall spatial attitude of the rail through the setting of the sensor, and realizes the measurement of whether the rail is parallel through the three sensors on the surface, ensures the axial parallelism, and then measures the position difference through the two side sensors, and then transmits the signal to the controller, and the controller controls the adjusting mechanism to realize automatic position adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings.

[0024] Figure 1 is the overall structure schematic diagram of the present application;

[0025] Figure 2 is Figure 1 partial structure schematic diagram of the present application;

[0026] Figure 3 is the overall structure schematic diagram of the adjusting mechanism of the present application;

[0027] Figure 4 is the top view structure schematic diagram of the adjusting mechanism of the present application;

[0028] Figure 5 is the internal structure schematic diagram of the adjusting mechanism of the present application;

[0029] Figure 6 is the front view structure schematic diagram of the triangular plate of the present application;

[0030] Figure 7 is the front view structure schematic diagram of the rotating disc of the present application;

[0031] Figure 8 is the overall structure schematic diagram of the measuring mechanism of the present application;

[0032] Figure 9 is another overall structure schematic diagram of the measuring mechanism of the present application;

[0033] Figure 10 Figure is a schematic diagram of the rail measurement coordinate structure of the present application.

[0034] In the figure: 1, sleeper; 2, rail; 3, adjustment mechanism; 4, measurement mechanism; 31, adjustment frame; 32, first servo motor; 33, first turbine housing; 34, screw rod; 35, balance bolt; 36, level; 37, controller; 38, second servo motor; 39, second turbine housing; 310, first threaded sleeve; 311, plug; 312, plug seat; 313, moving frame; 314, slide rail; 315, connecting rod; 316, Y-shaped frame; 317, mechanical clamp; 318, bottom support; 319, top block; 320, triangular plate; 321, second threaded sleeve; 322, second screw rod; 323, rotating disc; 324, sliding column; 325, pulley; 326, guide wheel; 327, pin shaft slot; 328, knob; 41, measurement seat one; 42, measurement seat two; 43, support roller; 44, X-axis displacement sensor; 45, Y-axis displacement sensor; 46, Z-axis displacement sensor. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] Embodiment 1

[0037] Please refer to Figures 1-9 The present application is a high-precision automatic rail aligner, which comprises a plurality of sleepers 1, two rails 2 placed on the sleepers 1, a measurement mechanism 4 for measuring the position and spatial attitude of the rails 2, and an adjustment mechanism 3 for adjusting the position and spatial attitude of the rails 2.

[0038] The adjustment mechanism 3 comprises an adjustment frame 31, a moving frame 313 reciprocally moving on the adjustment frame 31, a Y-shaped frame 316 fixedly installed on the moving frame 313, and a mechanical clamp 317 moving up and down on the Y-shaped frame 316; the adjustment frame 31 is installed with a controller 37 for power supply and motor driving.

[0039] The measuring mechanism 4 includes two measuring seats, one of which is provided with five displacement sensors in X, Y axial and Z axial surface directions.

[0040] The measurement of the track of the scheme involves five degrees of freedom of space (not considering rotation), so five sensors are needed for measurement and are installed in a certain way. Figure 9

[0041] The first turbine housing 33 is fixedly installed on one side of the adjusting frame 31, and the first servo motor 32 is fixedly installed on one side of the first turbine housing 33. The first servo motor 32 drives the lead screw 34 to rotate through a turbine and a worm, the lead screw 34 passes through the center of the turbine and is fixedly connected with the turbine, a first threaded sleeve 310 is sleeved on the lead screw 34, a plug 311 is fixedly installed at the end of the first threaded sleeve 310, the plug 311 is matched with a plug seat 312 on the moving frame 313, the plug 311 is inserted into the plug seat 312 and is fixed by a rivet. In this scheme, the rotation of the first threaded sleeve 310 is limited by the cooperation of the plug 311 and the plug seat 312, which facilitates horizontal movement.

[0042] The moving frame 313 is slidably connected with the slide rails 314 arranged on the inner walls of the adjusting frame 31, so as to ensure the stability of sliding, and the two moving frames 313 are connected by a connecting rod 315, so as to facilitate synchronous driving.

[0043] The first servo motor 32 is started, the lead screw 34 is driven to rotate through a turbine and a worm, when the lead screw 34 rotates, the first threaded sleeve 310 moves to drive the moving frame 313 to move horizontally, so as to realize horizontal movement of the rail.

[0044] The Y-shaped frame 316 is provided with a second turbine housing 39, the second turbine housing 39 is fixedly installed on one side of the Y-shaped frame 316, and the second servo motor 38 is fixedly installed on one side of the second turbine housing 39. The second servo motor 38 drives the second lead screw 322 to rotate through a turbine and a worm, the second lead screw 322 penetrates the turbine and is fixedly connected with the turbine, the turbine drives the second lead screw 322 to rotate, the second threaded sleeve 321 is threadedly connected to the outside of the second lead screw 322, the triangular plate 320 is fixedly installed on the outside of the second threaded sleeve 321, the pulleys 325 are arranged on the two sides of the triangular plate 320, and the pulleys 325 are slidably connected with the sliding columns 324 arranged on the inner walls of the moving frame 313. The pulleys 325 and the sliding columns 324 are arranged to limit the rotation of the second threaded sleeve 321 and realize the lifting movement of the second threaded sleeve 321.

[0045] ​The inside of the triangular plate 320 is rotatably connected with a rotating disc 323, the center of the rotating disc 323 is fixedly installed with a knob 328, the knob 328 is driven to rotate through a wrench, and then the rotating disc 323 is driven to rotate, two arc-shaped pin shaft grooves 327 are formed in the rotating disc 323, the pin shaft grooves 327 are connected with the mechanical clamps 317 through pin shafts, and the upper ends of the mechanical clamps 317 are connected with the triangular plate 320 through guide wheels 326. The knob 328 is driven to rotate through a wrench, and then the rotating disc 323 is driven to rotate, the mechanical clamps 317 are driven to rotate under the cooperation of the pin shaft grooves 327 and the pin shafts, and then the steel rails are clamped.

[0046] The inner wall of the mechanical clamp 317 is provided with a bottom supporting portion 318. The bottom center of the triangular plate 320 is provided with a top block 319, and the top block 319 is located between the two mechanical clamps 317. Through the setting of the supporting portion 318 and the top block 319, the clamping of the steel rails is more firm.

[0047] Three balance bolts 35 are arranged at the bottom of the adjusting frame 31, and a level 36 is arranged on the adjusting frame 31. Through the arrangement of the three balance bolts 35, the adjusting frame 31 can be conveniently placed horizontally on the sleeper 1.

[0048] The measuring mechanism 4 includes a measuring seat one 41 and a measuring seat two 42, a plurality of supporting rollers 43 are installed in the measuring seat one 41 and the measuring seat two 42, one adjacent side of the measuring seat one 41 and the measuring seat two 42 is closed, and the other side is provided with an opening matched with the steel rail 2; the measuring seat one 41 is provided with an X-axis displacement sensor 44, a Y-axis displacement sensor 45 and a Z-axis surface displacement sensor 46. Through the arrangement of the measuring mechanism 4, the two steel rails 2 can be aligned. Figure 10 As shown in the figure, the Z-axis is perpendicular to the steel rail section.

[0049] The measuring mechanism 4 transmits the measured signal to the controller 37, and then the controller 37 starts the servo motor to work, so as to realize the adjustment of the position; the whole process is an automatic adjustment process.

[0050] Embodiment 2

[0051] Please refer to Figures 1-9 As shown in the figure, a working method of a high-precision automatic rail aligner includes the following steps:

[0052] Step one, first, insert two measuring seats into the end faces of two steel rails 2, respectively, fix the two steel rails 2 through two supporting rollers 43 from the bottom of the steel rail 2, then fix two adjusting mechanisms 3 on the sleepers 1 through balance bolts 35, and adjust the level 36 to be level.

[0053] Step two, the position and spatial attitude of the two rails 2 are measured by two displacement sensors on the X, Y axis of the measuring mechanism 4, and three displacement sensors on the Z axis surface, the position and spatial attitude difference of the two rails 2 are calculated by measurement, and then the adjusting mechanism 3 is started to adjust the position;

[0054] Step three, first rotate the rotating disc 323 to drive the mechanical clamp 317 to clamp the rail 2; then start the first servo motor 32, drive the lead screw 34 to rotate through the worm gear, and then drive the first threaded sleeve 310 to move horizontally, push the moving frame 313 and the Y-shaped frame 316 to move horizontally as a whole; and start the second servo motor 38, drive the second lead screw 322 to rotate through the worm gear, and then drive the second threaded sleeve 321 to move up and down, and then drive the triangular plate 320 and the mechanical clamp 317 to move up and down as a whole, adjust the height of the rail 2, until it meets the requirements.

[0055] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the scope of the present application.

Claims

1. A high-precision automatic rail alignment device, comprising a plurality of sleepers (1), on which two steel rails (2) are placed, characterized in that, The position and spatial attitude of the two rails (2) are measured by a measuring mechanism (4), and the position and spatial attitude of the rails (2) are adjusted by an adjusting mechanism (3); The adjustment mechanism (3) includes an adjustment frame (31), on which a reciprocating movable frame (313) is provided, and a Y-shaped frame (316) is fixedly installed on the movable frame (313), and a mechanical clamp (317) that moves up and down is provided on the Y-shaped frame (316). The measuring mechanism (4) includes two docking measuring seats, one of which is provided with at least 5 displacement sensors in the X-axis, Y-axis and Z-axis directions; A first turbine housing (33) is fixedly installed on one side of the adjustment frame (31), and a first servo motor (32) is fixedly installed on one side of the first turbine housing (33). The first servo motor (32) drives the lead screw (34) to rotate through the turbine and worm gear. A first threaded sleeve (310) is sleeved on the lead screw (34), and a plug connector (311) is fixedly installed at the end of the first threaded sleeve (310). The plug connector (311) cooperates with the plug seat (312) on the moving frame (313). When the lead screw (34) rotates, it drives the first threaded sleeve (310) to move, thereby driving the moving frame (313) to move horizontally. The Y-shaped frame (316) is provided with a second turbine housing (39). A second servo motor (38) is fixedly installed on one side of the second turbine housing (39). The second servo motor (38) drives the second lead screw (322) to rotate through the turbine and worm. The external thread of the second lead screw (322) is connected to a second threaded sleeve (321). A triangular plate (320) is fixedly installed on the outside of the second threaded sleeve (321). Both sides of the triangular plate (320) are provided with pulleys (325). The pulleys (325) are slidably connected to the sliding column (324) provided on the inner wall of the moving frame (313). The triangular plate (320) is rotatably connected to a rotating disk (323). The rotating disk (323) has two arc-shaped pin grooves (327). The pin grooves (327) are connected to a mechanical clamp (317) by pins. The upper end of the mechanical clamp (317) is connected to the triangular plate (320) by a guide wheel (326). The bottom of the adjustment frame (31) is provided with three balance bolts (35), and a level (36) is provided on the adjustment frame (31).

2. A high-precision automatic rail alignment device according to claim 1, characterized in that, The movable frame (313) is slidably connected to the slide rails (314) provided on both sides of the inner wall of the adjustment frame (31).

3. A high-precision automatic rail alignment device according to claim 1, characterized in that, The mechanical clamp (317) has a bottom support (318) on its inner wall.

4. A high-precision automatic rail alignment device according to claim 1, characterized in that, A top block (319) is provided at the bottom center of the triangular plate (320), and the top block (319) is located between two mechanical clamps (317).

5. A high-precision automatic rail alignment device according to claim 1, characterized in that, Both measuring seats are equipped with multiple support rollers (43), and the adjacent sides of the two measuring seats are closed, while the opposite sides are provided with openings that cooperate with the rail (2).

6. The working method of a high-precision automatic rail alignment device according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1: First, insert the two measuring seats into the two rails (2) respectively, then fix the two adjusting mechanisms (3) on the sleepers (1) with the balance bolts (35), and level them with the level (36); Step 2: The positions of the two rails (2) are measured by two displacement sensors in the X and Y directions and three displacement sensors in the direction of the rail end face on the measuring mechanism (4). The position and spatial attitude difference of the two rails (2) are measured, and then the adjustment mechanism (3) is started to adjust their position. Step 3: First, rotate the rotary disk (323) to drive the mechanical clamp (317) to hold the rail (2); then start the first servo motor (32), which drives the lead screw (34) to rotate through the worm gear, thereby driving the first threaded sleeve (310) to move horizontally, pushing the moving frame (313) and the Y-shaped frame (316) to move horizontally as a whole; and start the second servo motor (38), which drives the second lead screw (322) to rotate through the worm gear, thereby driving the second threaded sleeve (321) to move up and down, thereby adjusting the overall height of the triangle plate (320) and the mechanical clamp (317), adjusting the height of the rail (2) until it meets the requirements.

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