Railway rail center detection vehicle

Abstract

A railway rail center detection vehicle comprises a traveling trolley and a prism measuring device; the traveling trolley comprises a frame and a push rod, a nylon wheel is arranged at the bottom of one end of the frame, the nylon wheel is arranged on the left rail, a steel groove wheel is arranged at the bottom of the other end of the frame, and the steel groove wheel is clamped on the right rail; the prism measuring device comprises a prism, a prism rod and a joint bearing seat, a mounting hole is provided in the middle of the joint bearing seat, a joint bearing is arranged in the mounting hole, both sides of the joint bearing seat are provided with limited holes, bolts are arranged in the limited holes, the bolts support the joint bearing, the joint bearing seat is connected to the frame, one end of the prism rod is connected to the prism, the center of the prism coincides with the center of the right rail, the other end of the prism rod is threadedly connected to one end of the prism rod joint, the other end of the prism rod joint is inserted in the joint bearing, and a universal bracket is connected between the prism rod and the frame. This design not only has high measurement accuracy and high work efficiency, but also has low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of track detection, and in particular to a railway rail center detection vehicle, which is mainly suitable for improving measurement accuracy, improving work efficiency and reducing costs. Background Art

[0002] Since the traditional ballasted track measurement operation is to place the prism rod in the center of the rail for measurement, the placement position is estimated by the staff, with large errors, and the prism group is also carried by the staff, which is laborious; at the same time, the prism bracket is not easy to land on the ballast, so the placement speed is slow, and the staff often bends over, the labor intensity is high and it is easy to get tired, so the overall operation efficiency is low. At the same time, the track fine-tuning requires the use of a fine-tuning trolley, which is expensive and has high rental fees. In addition, the rapid development of railways has led to a large demand for fine-tuning trolleys, so the detection cost is high. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects and problems of low measurement accuracy, low working efficiency and high cost in the prior art, and to provide a railway rail center detection vehicle with high measurement accuracy, high working efficiency and low cost.

[0004] To achieve the above purpose, the technical solution of the present invention is: a railway rail center detection vehicle, including a traveling trolley and a No. 1 prism measuring device; the traveling trolley includes a frame and a push rod connected to each other, a nylon wheel is arranged at the bottom of one end of the frame, and the nylon wheel is arranged on the left rail, and a steel groove wheel is arranged at the bottom of the other end of the frame, and the steel groove wheel is clamped on the right rail;

[0005] The No. 1 prism measuring device includes a No. 1 prism, a No. 1 prism rod and a joint bearing seat. A mounting hole is provided in the middle of the joint bearing seat, and a joint bearing is arranged in the mounting hole. Limit holes are provided on both sides of the joint bearing seat, and bolts are arranged in the limit holes. The bolts support the joint bearing. The joint bearing seat is located directly above the right rail, and the joint bearing seat is connected to the frame. One end of the No. 1 prism rod is connected to the No. 1 prism, and the center of the No. 1 prism coincides with the center of the right rail. The other end of the No. 1 prism rod is threadedly connected to one end of the prism rod joint, and the other end of the prism rod joint is inserted in the joint bearing. A universal bracket is connected between the No. 1 prism rod and the frame.

[0006] The frame is a T-shaped structure, and the frame includes a crossbeam and a longitudinal beam. A nylon wheel is arranged at the bottom of one end of the crossbeam, and the other end of the crossbeam is vertically connected to the longitudinal beam. The longitudinal beam is located directly above the right rail, and steel groove wheels are arranged at the bottom of both ends of the longitudinal beam. The push rod is connected to the crossbeam.

[0007] The walking trolley also includes a brake device, which includes a brake handle, a brake lever and a brake shoe. One end of the brake lever is connected to a brake pin, and the other end of the brake lever is connected to the brake handle through a brake line. The brake handle is connected to a hand push rod. The brake lever is hinged to a brake lever base, and the brake lever base is connected to the top of a brake wheel cover plate. The bottom of the brake wheel cover plate is connected to a vehicle frame. The bottom of the brake wheel cover plate is connected to a wheel bracket. The brake pin passes through the brake wheel cover plate and the wheel bracket in sequence and is connected to the brake shoe. The brake shoe is located directly above the steel groove wheel, and the two ends of the steel groove wheel are respectively connected to the two sides of the wheel bracket. A brake guide pin is provided on the brake shoe, and the brake guide pin passes through the wheel bracket and the brake wheel cover plate in sequence and then extends out. A No. 2 spring is provided on the brake guide pin at a position between the brake shoe and the wheel bracket.

[0008] The frame is provided with a track gauge ruler, which includes a base plate, a No. 1 rack and a No. 2 rack. An intermediate gear is provided at the exact center of the base plate. A No. 1 mounting groove and a No. 2 mounting groove are respectively provided at the parts of the base plate located on both sides of the intermediate gear. The No. 1 rack is arranged in the No. 1 mounting groove, and the No. 1 rack is meshed with the intermediate gear. A mounting column is provided at one end of the No. 1 rack, and a No. 1 spring is mounted on the mounting column. The No. 1 spring is fixed in the No. 1 mounting groove by a spring pressure block. The other end of the No. 1 rack is connected to an electrically insulating bearing through an electrically insulating bearing seat. The No. 1 rack A scale is arranged on it, the No. 2 rack is arranged in the No. 2 mounting groove, the No. 2 rack is meshed with the intermediate gear, a mounting column is arranged at one end of the No. 2 rack, a No. 1 spring is mounted on the mounting column, the No. 1 spring is fixed in the No. 2 mounting groove through a spring pressure block, the other end of the No. 2 rack is connected with an electrically insulating bearing through an electrically insulating bearing seat, a pointer is arranged on the No. 2 rack, the electrically insulating bearings of the No. 1 rack and the No. 2 rack are respectively in contact with the inner side surfaces of the left rail and the right rail, the bottom plate, the No. 1 rack and the No. 2 rack are all equipped with a support frame, and the support frame is connected to the frame.

[0009] The support frame includes a sliding block and a mounting plate, the sliding block is connected to the mounting plate, the mounting plate is connected to the frame, the sliding block is a hollow structure, the sliding block is mounted on the bottom plate, the No. 1 rack and the No. 2 rack, the inner top surface of the sliding block is provided with an upper ball, the upper ball cooperates with the slide grooves on the upper end surfaces of the bottom plate, the No. 1 rack and the No. 2 rack, the inner bottom surface of the sliding block is provided with a lower ball, the lower ball cooperates with the slide grooves on the lower end surfaces of the bottom plate, the No. 1 rack and the No. 2 rack, and the two inner side surfaces of the sliding block are provided with roller needles that contact the two side surfaces of the bottom plate, the No. 1 rack and the No. 2 rack.

[0010] The sliding block includes a base and a rack cover plate, the base is a U-shaped structure, the inner bottom surface of the base is provided with a lower ball, the two inner side surfaces of the base are provided with needle rollers, the top of the rack cover plate base is connected, the bottom surface of the rack cover plate is provided with an upper ball, the mounting plate is an L-shaped structure, the horizontal plate of the mounting plate is provided with a fixing hole connected to the frame, and the vertical plate of the mounting plate is connected to the base.

[0011] The inspection vehicle also includes a No. 2 prism measuring device, which includes a No. 2 prism, a No. 2 prism rod, a pressure block, a universal ball head and a universal ball support. One end of the No. 2 prism rod is connected to the No. 2 prism, and the other end of the No. 2 prism rod is connected to the pressure block. The pressure block is fixed on the bottom plate at a position directly above the intermediate gear. A mounting through hole is provided in the middle of the universal ball support, and the universal ball support is connected to the top of the pressure block. A conical hole coaxial with the mounting through hole is provided on the top of the pressure block. The universal ball head includes a rod body and a universal ball. The rod body is connected to the No. 2 prism rod, the universal ball is located in the mounting through hole, and the bottom of the universal ball is located in the conical hole. An adjustment threaded hole communicating with the mounting through hole is provided on the side of the universal ball support, and a butterfly bolt is installed in the adjustment threaded hole, and the butterfly bolt rests on the universal ball.

[0012] The frame is provided with an overheight detector, which includes a gearbox support plate, a gearbox, a balance block, a dial and a pointer. The bottom of the gearbox support plate is connected to the frame, the gearbox is arranged on the back of the gearbox support plate, the balance block is arranged on the back of the gearbox, and the dial is arranged on the front of the gearbox support plate. The gearbox is provided with a first connecting shaft, a second connecting shaft and a third connecting shaft. One end of the first connecting shaft passes through the gearbox and is connected to the balance block, and the other end of the first connecting shaft is connected to the gearbox. A first gear is mounted on the outer wall of the first connecting shaft, and both ends of the second connecting shaft are connected to the gearbox. A second gear and a third gear are mounted on the outer wall of the second connecting shaft, and the second gear is meshed with the first gear. One end of the third connecting shaft passes through the gearbox and is connected to the pointer, and the other end of the third connecting shaft is connected to the gearbox. A fourth gear meshed with the third gear is mounted on the outer wall of the third connecting shaft.

[0013] The balancing block is in the shape of a double kidney, and includes a left kidney plate, a right kidney plate and a connecting plate. The left and right sides of the connecting plate are respectively connected to the left kidney plate and the right kidney plate. The connecting plate is connected to the first connecting axis. Horizontal bubbles are arranged on the left kidney plate and the right kidney plate.

[0014] The dial includes a dial cover and a dial, one end of the dial cover is inserted on the gearbox support plate, and the other end of the dial cover is provided with a transparent protective cover, and the dial is connected to the inner wall of the dial cover, and threaded holes are provided on the left and right sides of the gearbox support plate, and ball-shaped positioning screws and adjusting bolts are sequentially provided in the threaded holes, one end of the ball-shaped positioning screw is connected to the adjusting bolt, and an annular groove is provided on the outer wall of the dial cover along the circumferential direction, and the other end of the ball-shaped positioning screw is located in the annular groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In a railway rail center detection vehicle of the present invention, a No. 1 prism measuring device includes a No. 1 prism, a No. 1 prism rod and a joint bearing seat, a joint bearing is arranged in the middle of the joint bearing seat, the joint bearing seat is located just above the right rail, and the joint bearing seat is connected to the frame, one end of the No. 1 prism rod is connected to the No. 1 prism, the center of the No. 1 prism coincides with the center of the right rail, the other end of the No. 1 prism rod is threadedly connected to one end of the prism rod joint, the other end of the prism rod joint is inserted in the joint bearing, and a universal bracket is connected between the No. 1 prism rod and the frame; after the No. 1 prism measuring device of the above structure is installed, it is first quickly leveled and maintained in spatial position by the universal bracket, and then combined with the total station, the spatial position of the center of the rail can be measured, and then the spatial position of the track is adjusted according to the measured value. Therefore, the present invention not only has high measurement accuracy and high work efficiency, but also has low cost.

[0017] 2. In a railway rail center detection vehicle of the present invention, a nylon wheel is arranged at the bottom of one end of the crossbeam, and the other end of the crossbeam is vertically connected to the longitudinal beam. The longitudinal beam is located directly above the right rail, and steel groove wheels are arranged at the bottom of both ends of the longitudinal beam. The frame of the above structure not only solves the problem of wheel suspension, but also solves the insulation problem of the left and right rails. When the trolley moves, the brake handle is pressed, and the brake handle controls the movement of the brake lever through the brake line, and the brake lever drives the brake pull pin to move upward, thereby separating the brake shoe from the steel groove wheel. When the trolley needs to stop for measurement, the brake handle is released. At this time, under the action of the spring, the brake shoe is reset to fit the steel groove wheel. The above design not only has a good braking effect, but also is simple to operate. Therefore, the present invention has high reliability, simple operation, good stability and good safety.

[0018] 3. In a railway rail center detection vehicle of the present invention, when measuring the track gauge, two electrically insulating bearings are respectively against the inner sides of the left and right rails. When the track gauge changes, the rack becomes longer or shorter through the intermediate gear under the action of the spring, and the bottom plate also slides left and right at the same time. Then, the reading is directly read according to the scale and the pointer, thereby realizing continuous linear measurement of the track gauge, which not only improves the work efficiency but also improves the measurement accuracy. When measuring the track gauge, the prism is always in the center of the left and right rails, thus solving the problem of prism centering. Then, the prism rod is manually adjusted to center the bubble. The prism rod is kept in a vertical position under the action of the pressure block, and then the total station can be used for linear measurement. The spatial position of the center of the road is measured, and finally the spatial position of the track is adjusted according to the measured value; the support frame includes a base, a rack cover plate and a mounting plate, the base is a U-shaped structure, the inner bottom surface of the base is provided with a lower ball, the two inner side surfaces of the base are provided with needle rollers, the rack cover plate is connected to the top of the base, the bottom surface of the rack cover plate is provided with an upper ball, the mounting plate is an L-shaped structure, the horizontal plate of the mounting plate is provided with a fixing hole connected to the crossbeam, and the vertical plate of the mounting plate is connected to the base. The support frame of the above structure not only enables the track gauge measuring ruler to slide left and right reliably, improves the working reliability of the track gauge measuring ruler, but also reduces the difficulty of disassembling and assembling the track gauge measuring ruler. Therefore, the present invention not only improves the measurement accuracy, improves the work efficiency, and reduces the cost, but also has high reliability and is easy to install and disassemble.

[0019] 4. In a railway rail center detection vehicle of the present invention, the second prism measuring device includes a pressing block, a universal ball head and a universal ball support. On the one hand, the prism rod can be conveniently and quickly assembled on the vehicle frame and the prism is ensured to be centered. On the other hand, under the action of the universal ball head, the universal ball support and the base, the prism rod can be manually adjusted to center the bubble and the prism rod can be ensured to maintain a vertical position, thereby improving the measurement accuracy. Therefore, the present invention improves the measurement accuracy and reduces the difficulty of installation and disassembly.

[0020] 5. In a railway rail center inspection vehicle of the present invention, when inspecting a curved track section, the trolley is placed on the track, and the track surface elevations of the left and right tracks are detected by a superelevation detection prism, and then the dial is manually rotated to complete the calibration operation, and then the trolley is pushed to inspect the curved track section. During the movement of the trolley, if the track surface superelevation of the left and right tracks changes, the balance block will always remain horizontal under the action of gravity, and the dial will rotate left or right with the vehicle body, thereby driving the first connecting shaft to rotate, the first gear drives the second gear to rotate, the second connecting shaft drives the third gear to rotate, and then the fourth gear meshing with the third gear rotates, and the third connecting shaft drives the pointer to rotate in the dial, and the measured value is read, thereby completing the measurement operation. The trolley can drive the superelevation detector to move, and can achieve The curved track is continuously tested to improve the test continuity, and calibration can be performed during measurement, so that the measurement result is more accurate and the accuracy of the measurement result is improved; when adjustment and calibration are required, only the dial cover needs to be rotated, and since the pointer is connected to the connecting rod on the support plate, the ball positioning screw plays a limiting role in the process of rotating the dial cover, and the pointer is fixed, and the dial on the dial cover is rotated, so that the zero scale of the dial coincides with the direction indicated by the pointer, and then the whole calibration process is completed, and the whole calibration process is relatively simple, the required time is short, the labor of calibration adjustment is reduced, and the efficiency of the whole detection process is also improved; the part of the beam located just above the nylon wheel is provided with an ultra-high prism rod, and the ultra-high prism is installed on the ultra-high prism rod, and in the track fine adjustment stage, the ultra-high prism is used to measure the absolute elevation. Therefore, the present invention has high measurement accuracy, simple operation and high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 yes Figure 1 main view.

[0023] Figure 3 It is a schematic diagram of the installation structure of the track gauge measuring ruler, the superelevation detector and the No. 2 prism measuring device in the present invention.

[0024] Figure 4 yes Figure 1 Schematic diagram of the structure of the medium-travel trolley.

[0025] Figure 5 yes Figure 1 Schematic diagram of the installation structure of the No. 1 prism rod.

[0026] Figure 6 yes Figure 2 Schematic diagram of the structure of the center joint bearing seat.

[0027] Figure 7 It is a structural schematic diagram of the brake device in the present invention.

[0028] Figure 8 It is a front view of a brake device in the present invention.

[0029] Fig. 9 yes Figure 2 Schematic diagram of the structure of the medium gauge measuring ruler.

[0030] Fig.10 yes Fig. 9 Schematic diagram of the assembly structure of rack No. 1, rack No. 2 and base plate.

[0031] Fig.11 yes Fig. 9 Schematic diagram of the structure of the midsole plate.

[0032] Fig.12 yes Fig. 9 Schematic diagram of the structure of the middle support frame.

[0033] Fig.13 yes Figure 3 Schematic diagram of the structure of the No. 2 prism measurement device.

[0034] Fig.14 yes Fig.13 Schematic diagram of the structure of the medium pressure block.

[0035] Fig.15 yes Fig.13 Schematic diagram of the structure of the universal ball head.

[0036] Fig.16 yes Fig.13 Schematic diagram of the structure of the universal ball bearing.

[0037] Fig.17 yes Figure 1 Schematic diagram of the structure of the ultra-high detector.

[0038] Fig.18 yes Fig.17 Schematic diagram of the internal structure of the gearbox.

[0039] Fig.19 yes Fig.18 Side view of.

[0040] Fig. 20 yes Fig.17 Schematic diagram of the assembly structure of the gearbox support plate and the dial.

[0041] Fig.21 yes Fig. 20 Top view of the .

[0042] Fig. 22 yes Fig. 20 Side view of.

[0043] Fig.23 yes Fig. 20 Schematic diagram of the structure of the middle dial cover.

[0044] Fig.24 yes Fig.17 Schematic diagram of the structure of the balancing block.

[0045] In the figure: walking trolley 1, frame 11, cross beam 111, longitudinal beam 112, hand push rod 12, nylon wheel 13, steel groove wheel 14, brake device 15, brake handle 150, brake lever 151, brake shoe 152, brake pin 153, brake line 154, brake lever base 155, brake wheel cover 156, wheel bracket 157, brake guide pin 158, No. 2 spring 159, track gauge ruler 2, bottom plate 21, No. 1 mounting slot 211, No. 2 mounting slot Groove 212, slide 213, rack 22, mounting column 221, electrically insulating bearing seat 222, scale 223, rack 23, pointer 231, intermediate gear 24, spring 25, spring pressure block 26, electrically insulating bearing 27, support frame 28, base 281, rack cover 282, mounting plate 283, lower ball 284, needle 285, ultra-high detector 3, gearbox support plate 31, threaded hole 311, ball positioning screw 312, Adjusting bolt 313, gearbox 32, first connecting shaft 321, second connecting shaft 322, third connecting shaft 323, first gear 324, second gear 325, third gear 326, fourth gear 327, balancing block 33, left kidney plate 331, right kidney plate 332, connecting plate 333, level bubble 334, dial 34, dial cover 341, dial 342, transparent protective cover 343, annular groove 344, pointer 35, No. 2 prism measuring device 4 , No. 2 prism 41, No. 2 prism rod 42, pressure block 43, tapered hole 431, universal ball head 44, rod body 441, universal ball 442, universal ball support 45, mounting through hole 451, adjusting threaded hole 452, No. 1 prism measuring device 5, No. 1 prism 51, No. 1 prism rod 52, joint bearing seat 53, mounting hole 531, limit hole 532, joint bearing 54, bolt 55, prism rod joint 56, universal bracket 57, left rail 6, right rail 7. DETAILED DESCRIPTION

[0046] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0047] See also Figures 1 to 24A railway rail center detection vehicle comprises a traveling trolley 1 and a No. 1 prism measuring device 5; the traveling trolley 1 comprises a frame 11 and a push rod 12 connected to each other, a nylon wheel 13 is arranged at the bottom of one end of the frame 11, and the nylon wheel 13 is arranged on the left rail 6, and a steel groove wheel 14 is arranged at the bottom of the other end of the frame 11, and the steel groove wheel 14 is clamped on the right rail 7;

[0048] The No. 1 prism measuring device 5 includes a No. 1 prism 51, a No. 1 prism rod 52 and a joint bearing seat 53. A mounting hole 531 is provided in the middle of the joint bearing seat 53, and a joint bearing 54 is arranged in the mounting hole 531. Limiting holes 532 are provided on both sides of the joint bearing seat 53, and bolts 55 are arranged in the limiting holes 532. The bolts 55 support the joint bearing 54. The joint bearing seat 53 is located directly above the right rail 7, and the joint bearing seat 53 is connected to the frame 11. One end of the No. 1 prism rod 52 is connected to the No. 1 prism 51, and the center of the No. 1 prism 51 coincides with the center of the right rail 7. The other end of the No. 1 prism rod 52 is threadedly connected to one end of the prism rod joint 56, and the other end of the prism rod joint 56 is inserted in the joint bearing 54. A universal bracket 57 is connected between the No. 1 prism rod 52 and the frame 11.

[0049] The frame 11 is a T-shaped structure, and the frame 11 includes a crossbeam 111 and a longitudinal beam 112. A nylon wheel 13 is provided at the bottom of one end of the crossbeam 111, and the other end of the crossbeam 111 is vertically connected to the longitudinal beam 112. The longitudinal beam 112 is located directly above the right rail 7. Steel groove wheels 14 are provided at the bottom of both ends of the longitudinal beam 112, and the push rod 12 is connected to the crossbeam 111.

[0050] The walking trolley 1 also includes a brake device 15, which includes a brake handle 150, a brake lever 151 and a brake shoe 152. One end of the brake lever 151 is connected to a brake pin 153, and the other end of the brake lever 151 is connected to the brake handle 150 through a brake line 154. The brake handle 150 is connected to the hand push rod 12. The brake lever 151 is hinged to a brake lever base 155. The brake lever base 155 is connected to the top of a brake wheel cover 156. The bottom of the brake wheel cover 156 is connected to the frame 11. The brake wheel cover 15 6 is connected to a wheel bracket 157 at the bottom, the brake pin 153 passes through the brake wheel cover 156 and the wheel bracket 157 in sequence and is connected to the brake shoe 152, the brake shoe 152 is located just above the steel groove wheel 14, and the two ends of the steel groove wheel 14 are respectively connected to the two sides of the wheel bracket 157, and a brake guide pin 158 is provided on the brake shoe 152, the brake guide pin 158 passes through the wheel bracket 157 and the brake wheel cover 156 in sequence and then extends out, and a No. 2 spring 159 is set on the brake guide pin 158 between the brake shoe 152 and the wheel bracket 157.

[0051] The frame 11 is provided with a track gauge ruler 2, and the track gauge ruler 2 includes a base plate 21, a No. 1 rack 22 and a No. 2 rack 23. An intermediate gear 24 is provided at the exact center of the base plate 21. The base plate 21 is provided with a No. 1 mounting groove 211 and a No. 2 mounting groove 212 at the two sides of the intermediate gear 24. The No. 1 rack 22 is arranged in the No. 1 mounting groove 211, and the No. 1 rack 22 is meshed with the intermediate gear 24. A mounting column 221 is provided at one end of the No. 1 rack 22, and a No. 1 spring 25 is mounted on the mounting column 221. The No. 1 spring 25 is fixed in the No. 1 mounting groove 211 through a spring pressure block 26. The other end of the No. 1 rack 22 is connected to an electrically insulating bearing 27 through an electrically insulating bearing seat 222. A scale 223 is provided, the No. 2 rack 23 is arranged in the No. 2 mounting groove 212, the No. 2 rack 23 is meshed with the intermediate gear 24, a mounting column 221 is provided at one end of the No. 2 rack 23, a No. 1 spring 25 is mounted on the mounting column 221, the No. 1 spring 25 is fixed in the No. 2 mounting groove 212 through a spring pressure block 26, the other end of the No. 2 rack 23 is connected with an electrically insulating bearing 27 through an electrically insulating bearing seat 222, a pointer 231 is provided on the No. 2 rack 23, the electrically insulating bearings 27 of the No. 1 rack 22 and the No. 2 rack 23 are in contact with the inner side surfaces of the left rail 6 and the right rail 7 respectively, the bottom plate 21, the No. 1 rack 22 and the No. 2 rack 23 are all mounted with a support frame 28, and the support frame 28 is connected to the frame 11.

[0052] The support frame 28 includes a sliding block and a mounting plate 283, the sliding block is connected to the mounting plate 283, the mounting plate 283 is connected to the frame 11, the sliding block is a hollow structure, the sliding block is mounted on the bottom plate 21, the first rack 22, and the second rack 23, the inner top surface of the sliding block is provided with an upper ball, the upper ball cooperates with the slide groove 213 on the upper end surface of the bottom plate 21, the first rack 22, and the second rack 23, the inner bottom surface of the sliding block is provided with a lower ball 284, the lower ball 284 cooperates with the slide groove 213 on the lower end surface of the bottom plate 21, the first rack 22, and the second rack 23, and the two inner side surfaces of the sliding block are provided with roller needles 285 that contact the two side surfaces of the bottom plate 21, the first rack 22, and the second rack 23.

[0053] The sliding block includes a base 281 and a rack cover plate 282. The base 281 is a U-shaped structure. The inner bottom surface of the base 281 is provided with a lower ball 284, and the two inner side surfaces of the base 281 are provided with needle rollers 285. The rack cover plate 282 is connected to the top of the base 281, and the bottom surface of the rack cover plate 282 is provided with an upper ball. The mounting plate 283 is an L-shaped structure. The horizontal plate of the mounting plate 283 is provided with a fixing hole connected to the frame 11, and the vertical plate of the mounting plate 283 is connected to the base 281.

[0054] The inspection vehicle also includes a No. 2 prism measuring device 4, which includes a No. 2 prism 41, a No. 2 prism rod 42, a pressure block 43, a universal ball head 44 and a universal ball support 45. One end of the No. 2 prism rod 42 is connected to the No. 2 prism 41, and the other end of the No. 2 prism rod 42 is connected to the pressure block 43. The pressure block 43 is fixed to the bottom plate 21 at a position directly above the intermediate gear 24. A mounting through hole 451 is opened in the middle of the universal ball support 45, and the universal ball support 45 is connected to the top of the pressure block 43. The top of the pressing block 43 is provided with a conical hole 431 coaxial with the mounting through hole 451, the universal ball head 44 includes a rod body 441 and a universal ball 442, the rod body 441 is connected to the second prism rod 42, the universal ball 442 is located in the mounting through hole 451, and the bottom of the universal ball 442 is located in the conical hole 431, and the side of the universal ball support 45 is provided with an adjustment threaded hole 452 connected to the mounting through hole 451, and a butterfly bolt is installed in the adjustment threaded hole 452, and the butterfly bolt is against the universal ball 442.

[0055] The frame 11 is provided with an overheight detector 3, which includes a gearbox support plate 31, a gearbox 32, a balance block 33, a dial 34 and a pointer 35. The bottom of the gearbox support plate 31 is connected to the frame 11, the gearbox 32 is arranged on the back of the gearbox support plate 31, the balance block 33 is arranged on the back of the gearbox 32, and the dial 34 is arranged on the front of the gearbox support plate 31. The gearbox 32 is provided with a first connecting shaft 321, a second connecting shaft 322 and a third connecting shaft 323 inside. One end of the first connecting shaft 321 passes through the gearbox 32 and is connected to the balance block 33. The other end of the first connecting shaft 321 is connected to the gearbox 32, and a first gear 324 is mounted on the outer wall of the first connecting shaft 321. Both ends of the second connecting shaft 322 are connected to the gearbox 32. A second gear 325 and a third gear 326 are mounted on the outer wall of the second connecting shaft 322. The second gear 325 is meshed with the first gear 324. One end of the third connecting shaft 323 passes through the gearbox 32 and is connected to the pointer 35. The other end of the third connecting shaft 323 is connected to the gearbox 32. A fourth gear 327 meshed with the third gear 326 is mounted on the outer wall of the third connecting shaft 323.

[0056] The balance block 33 is in the shape of a double kidney, and includes a left kidney plate 331, a right kidney plate 332 and a connecting plate 333. The left and right sides of the connecting plate 333 are respectively connected to the left kidney plate 331 and the right kidney plate 332. The connecting plate 333 is connected to the first connecting shaft 321. Horizontal bubbles 334 are provided on the left kidney plate 331 and the right kidney plate 332.

[0057] The dial 34 includes a dial cover 341 and a scale plate 342. One end of the dial cover 341 is inserted into the gearbox support plate 31, and the other end of the dial cover 341 is provided with a transparent protective cover 343. The scale plate 342 is connected to the inner wall of the dial cover 341. Threaded holes 311 are provided on the left and right sides of the gearbox support plate 31. Ball-shaped positioning screws 312 and adjusting bolts 313 are provided in the threaded holes 311 in sequence. One end of the ball-shaped positioning screw 312 is connected to the adjusting bolt 313. An annular groove 344 is provided on the outer wall of the dial cover 341 along the circumferential direction, and the other end of the ball-shaped positioning screw 312 is located in the annular groove 344.

[0058] The principle of the present invention is described as follows:

[0059] In order to ensure the stability of the vehicle body and the authenticity of the collected data, and to avoid the problem of the wheels being suspended in the air when the vehicle body passes through the triangular pit of the track, thereby affecting the leveling of the prism, the frame structure adopts a T-shaped frame; the nylon wheels can avoid the connection between the left and right rails, and the two steel groove wheel groups on the right side are directly stuck on the rails for running, so as to prevent the inspection vehicle from moving left and right and falling off the track. The steel groove wheel group on the right front is equipped with a brake device, and the brake wheel adopts a normally closed structure, that is, when the trolley is stopped, the brake shoe is pressed against the steel groove wheel under the action of the left and right spring forces, thereby achieving a braking effect; when the observation is completed and it is necessary to move forward, pinch the brake handle and release the brake shoe to push forward. After reaching the observation point, release the brake handle to carry out measurement operations.

[0060] This design can be used in conventional railways, intercity railways, subways, trams and other places. It can also be used for the initial adjustment of high-speed railway ballastless tracks to reduce the cost of fine-tuning trolleys. It can realize the functions of track plane position measurement, track surface elevation measurement, curve superelevation measurement, and track gauge measurement. The main observation position is the center line of the rail (752.5 mm from the center of the line, i.e. 1435 / 2+70 / 2). In order to ensure that the prism can be quickly centered and leveled in any state, this inspection vehicle uses self-lubricating spherical bearings for forced centering. At the same time, special prism rods are designed and manufactured to connect with spherical bearings, which ensures that the centering error is close to 0. Prism leveling is achieved with the assistance of a universal bracket. It can replace the prism bracket to quickly fix the prism in the plumb bob position. The above method achieves the purpose of eliminating prism centering errors and rapid leveling. Since the steel groove wheel is directly stuck on the rail and moves, the longitudinal center position of the steel groove wheel is the center position of the rail. This inspection vehicle sets the right front wheel as the working wheel and installs the self-lubricating spherical bearing in the middle front of the working wheel, so that the center of the prism coincides with the center of the rail. The cone head at the bottom of the prism rod needs to be replaced with a threaded stepped shaft connector. The spherical bearing uses the connector to connect the small prism group or the large prism group. The prism group is quickly leveled and maintained in space through the universal bracket. At this time, the total station can be combined to measure the spatial position of the center of the rail, and then the spatial position of the track is adjusted according to the measured value. Since the measurement position is at the center of the rail, the prism rod is afraid that sliding directly on the rail will hinder the normal measurement operation. In order to ensure the accuracy of the collected elevation data, the prism rod is suspended at the bottom, that is, the cone head at the bottom of the prism rod is shortened by 10 mm without changing the position of the top of the prism, and then the threaded stepped shaft connector is used to achieve the overhead. Since the rotation center of the self-lubricating spherical bearing is 10 mm above the rail surface, its centering error is 0 when on a straight section. When on a curved section, the cotangent formula calculates that the angle value corresponding to the superelevation limit value 150 / 1505 is 5.692°. According to the tangent formula, tan5.692°=centering error / 10, the centering error under the superelevation limit state is 0.997 mm. According to the current design speed and curve radius data of most railways, the superelevation calculation formula h=7.6Vmax² / R shows that the superelevation values ​​of most railways are within 50 mm. Therefore, the centering error caused in most curved sections is 0.332 mm.

[0061] The grooved steel wheel on the right side of the frame is clamped on the rail, so the reference edge is set on the inside of the right rail. Since the gauge is measured by measuring the distance between the inner sides of the left and right rails, two electrically insulating bearings that always rotate against the inner side of the rails can keep the insulation of the left and right rails while measuring the distance. The electrically insulating bearings are fixed at both ends of the two racks, and the gears are installed in the center of the bottom plate. The two racks are symmetrically distributed in the mounting grooves on both sides of the gears. When the gauge changes during the travel of the trolley, the racks are lengthened or shortened at the same time through the gears under the action of the spring force at the rear end of the racks. Since the reference edge is on the right rail, the bottom plate will move left and right at the same time as the rack length changes. The moving value is the total elongation or total shortening value minus half of the standard gauge. Because the actual gauge change is small, the distance measuring ruler sets the distance measuring telescopic stroke to ±30 mm, that is, the effective measuring range is between 1405 and 1465. In this way, when the inspection vehicle travels at any position on the track, it can read the scale position indicated on the rack instantly. When used on wide or narrow rails, it is only necessary to increase or decrease the rack length accordingly. Among the four aluminum alloy support frames, the middle two are used to connect the bottom plate and the frame with bolts, and the side two are used to connect the rack and the frame with bolts. Since the gauge ruler is constantly moving left and right during operation, in order to reduce the power loss of the spring, aluminum alloy materials are used as much as possible and hollowed out for lightweight processing. All sliding surfaces use steel balls or needles to reduce friction resistance and limit, and rolling friction replaces sliding friction.

[0062] Fix the pressing block just above the middle gear of the gauge measuring ruler bottom plate. Since the measuring rack will apply a pair of equal and opposite forces through the middle gear under the action of the spring, it will cause the racks on both sides to expand and contract at the same time, thus ensuring that the prism is always in the center of the left and right tracks while measuring the gauge, thus solving the prism centering problem. Then manually adjust the prism rod to center the bubble, and the prism rod will maintain a vertical position under the friction brake of the universal support ball joint. At this time, the total station can be used to measure the spatial position of the line center, and then adjust the spatial position of the track according to the measured value. Since the measurement position is at the center of the line, the bottom of the prism rod coincides with the track surface in the normal section, so the measured elevation data is directly used. When measuring the track surface height in the superelevation section, the prism height is its own length plus or minus half of the measured superelevation value. For example, if the left side is superelevated, the elevation of the low track surface is half of the measured elevation value minus the superelevation value, and the elevation of the high track surface is half of the measured elevation value plus the superelevation value. Because the rotation center of the universal ball bearing is 20 mm above the rail surface, its centering error is 0 when on a straight section. When on a curved section, the cotangent formula is used to calculate that the angle value corresponding to the superelevation limit value 150 / 1505 is 5.692°. Then, according to the tangent formula, tan5.692°=centering error / 20, the centering error under the superelevation limit state is calculated to be 1.993 mm. According to the current design speed and curve radius data of most railways, the superelevation calculation formula h=7.6Vmax² / R shows that the superelevation values ​​of most railways are within 50 mm. Therefore, the centering error caused in the curved section is 0.664 mm.

[0063] The dial of the ultra-high detector is an aluminum plate with a diameter of 100 mm and a thickness of 1 mm. For easy reading, it uses full-circle digital markings for both forward and reverse directions (i.e. 360 degrees for forward rotation and 360 degrees for reverse rotation). The dial cover is fixed to the support plate by two transverse bolts clamping the annular groove. The dial is bonded to the dial cover by super glue, so that the dial can rotate 360 ​​degrees with the dial cover. The balance block is made of 10 mm thick hot-rolled steel plate cut into a double kidney shape by laser wire, and the surface of the steel plate is blackened. In order to make the balance block accurately level when reading, a level bubble is installed on the balance block. In order to reduce weight while ensuring strength, the support plate is cut from 16 mm thick 6061 aluminum plate and connected by M6 bolts. The gearbox adopts two-stage reduction, and the gear modulus is 0.5. In order to reduce working resistance and ensure good working condition, 606ZZ high-speed rolling bearings are installed at both ends of each connecting shaft of the gearbox, with a total of 6. The high-speed rolling bearings are installed on the gearbox support plate through interference fit, and all aluminum plates are connected by M6 bolts.

[0064] The working principle of the superelevation detector is: the superelevation value of the railway track is generally between 0 and 150 mm, corresponding to a horizontal distance of 1505 mm (standard track gauge 1435 + rail width 70). When the detection vehicle passes through a curved section, the lifting of the outer rail will cause the vehicle body to rotate laterally by an angle. From the tangent formula tana=superelevation value / rail center distance 1505, it can be seen that the calculated angle value is very small, so the reaction is not sensitive; if the rotation angle is directly indicated by the deadweight of the hanging hammer, if you want to know the actual superelevation value, you need to calculate it according to the formula based on the rotation angle value, which is time-consuming, labor-intensive and very troublesome. In order to directly use the standard 360-degree dial to display the superelevation value at 1:1 (each degree of rotation of the pointer is equal to one millimeter in the distance direction, that is, 1 mm superelevation), then the left and right balance blocks and gearboxes must be used to amplify the value. First, a simulation calculation is performed. A straight line of 1505 mm in length is drawn. Then, a straight line of 1 degree in length is drawn along one end of the straight line. Then, the width of the opening is marked as 26.27 mm. Finally, the calculator is used to verify that tan1°=superelevation value / 1505. The superelevation value is also 26.27 mm. It can be seen that when the vehicle body rotates 1 degree, the corresponding superelevation value is 26.27 mm. Based on this, a two-stage gearbox is designed, and the gear ratios of the two stages are 20. :100 and 20:105.08. Considering the power loss and the convenience of gear processing, the final acceleration ratio is 1:26.5, corresponding to the number of teeth of 20:100 and 20:106; when the car passes through the curved section, the car body rotates left and right while the balance block always remains horizontal, so that the dial is driven by the rotation of the car body to rotate clockwise or counterclockwise with the car body, and the pointer will also rotate with the acceleration through the gearbox, so that the gearbox converts the angle value into a millimeter value to achieve the purpose of displaying the actual superelevation value. Since this superelevation detector is designed according to the standard track gauge of 1435 mm, when using wide or narrow tracks, the acceleration ratio needs to be recalculated and re-matched, and the calculation principle is the same. Because the superelevation detector can be disassembled, it should be calibrated before each use. The calibration method is to use the prism group on the nylon wheel to first measure the elevation of the left track surface of the same mileage, and then rotate the car body 180° to measure the elevation of the right track surface. The elevation difference between the two track surfaces is the superelevation value. The detector dial can be rotated 360 degrees at will, so you only need to keep the balance block horizontal and rotate the dial to the superelevation value indicated by the pointer. In order to adapt to the convention and facilitate reading, try to make the 0 scale of the pointer point directly downward or upward during adjustment. If the difference is too large, just turn the balance block first to make the pointer point directly upward or downward, then loosen the bolts on the adjustment balance block, rotate the balance block to make it horizontal, and then tighten the bolts.Because the superelevation detector is too sensitive, a slight impact of movement will be magnified 26.27 times through the gearbox. Considering the friction resistance inside the gearbox, the large windward surface of the balance block, and the vibration during walking, it may cause the balance block to self-balance reset error and cause inaccurate display values. Therefore, pay special attention to whether the horizontal bubble on the balance block is centered every time you read. If it is not centered, turn the balance block manually, and you can read accurately when the bubble is centered. Because the dial is a two-way 360-degree display, the reading should be read in the direction of the pointer rotation (generally the left superelevation pointer rotates counterclockwise, and the right superelevation pointer rotates clockwise). Because the ballasted track has more tamping times, the superelevation detector can be used to verify the superelevation in the first few times, and the prism is used to measure in the fine adjustment stage. The superelevation of the ballastless track is always measured with a prism in the rough adjustment stage. The superelevation measurement prism jack is just above the middle of the nylon wheel.

[0065] In the initial adjustment of the track, in order to directly display the superelevation value for comparison with the theoretical value, this inspection vehicle adopts a gravity-balanced mechanical pointer display. When the track inspection vehicle passes through the outer track of the curved section, the track will be raised, causing the car body to rotate an angle. Because the superelevation value is small relative to the track gauge direction, the car body rotation angle is not large. In order to display the superelevation value 1:1 through the balance block and the gearbox, the gearbox is finally used to amplify the angle value to achieve that each rotation of the pointer is equal to one millimeter in the height direction, so that the angle value caused by the superelevation is converted into the millimeter value in the length direction. Because the circumference is 360 degrees, the theoretical measurement range of this trolley is -360 to 360 mm, and the superelevation value of the railway design is generally within 150 mm, so it can fully meet the actual requirements. When the trolley passes through the curved section, the car body rotates left and right while the balance block is always horizontal, thereby driving the pointer on the car body to rotate clockwise or counterclockwise to achieve the purpose of displaying the actual superelevation value; when the track enters the fine adjustment stage, it is only necessary to insert a prism group above the left nylon wheel for absolute elevation measurement to measure the superelevation rail elevation.

[0066] Embodiment 1:

[0067] See also Figures 1 to 24A railway rail center detection vehicle comprises a traveling trolley 1 and a No. 1 prism measuring device 5; the traveling trolley 1 comprises a frame 11 and a push rod 12 connected to each other, a nylon wheel 13 is arranged at the bottom of one end of the frame 11, and the nylon wheel 13 is arranged on the left rail 6, and a steel groove wheel 14 is arranged at the bottom of the other end of the frame 11, and the steel groove wheel 14 is clamped on the right rail 7; the No. 1 prism measuring device 5 comprises a No. 1 prism 51, a No. 1 prism rod 52 and a joint bearing seat 53, a mounting hole 531 is opened in the middle of the joint bearing seat 53, a joint bearing 54 is arranged in the mounting hole 531, and the joint shaft Limiting holes 532 are provided on both sides of the support 53, and bolts 55 are arranged in the limiting holes 532. The bolts 55 support the joint bearing 54. The joint bearing seat 53 is located directly above the right rail 7, and the joint bearing seat 53 is connected to the frame 11. One end of the No. 1 prism rod 52 is connected to the No. 1 prism 51, and the center of the No. 1 prism 51 coincides with the center of the right rail 7. The other end of the No. 1 prism rod 52 is threadedly connected to one end of the prism rod joint 56, and the other end of the prism rod joint 56 is inserted in the joint bearing 54. A universal bracket 57 is connected between the No. 1 prism rod 52 and the frame 11.

[0068] Embodiment 2:

[0069] The basic content is the same as that of Example 1, except that:

[0070] See also Figures 1 to 24The frame 11 is a T-shaped structure, and the frame 11 includes a crossbeam 111 and a longitudinal beam 112. A nylon wheel 13 is arranged at the bottom of one end of the crossbeam 111, and the other end of the crossbeam 111 is vertically connected to the longitudinal beam 112. The longitudinal beam 112 is located directly above the right rail 7, and steel groove wheels 14 are arranged at the bottom of both ends of the longitudinal beam 112. The hand push rod 12 is connected to the crossbeam 111; the walking trolley 1 also includes a brake device 15, and the brake device 15 includes a brake handle 150, a brake lever 151 and a brake shoe 152. One end of the brake lever 151 is connected to the brake pin 153, and the other end of the brake lever 151 is connected to the brake handle 150 through a brake line 154. The brake handle 150 is connected to the hand push rod 12, and the brake lever 151 is connected to the brake shoe 152. The brake lever base 155 is hinged, and the brake lever base 155 is connected to the top of the brake wheel cover 156. The bottom of the brake wheel cover 156 is connected to the frame 11. The bottom of the brake wheel cover 156 is connected to the wheel bracket 157. The brake pull pin 153 passes through the brake wheel cover 156 and the wheel bracket 157 in sequence and is connected to the brake shoe 152. The brake shoe 152 is located directly above the steel groove wheel 14, and the two ends of the steel groove wheel 14 are respectively connected to the two sides of the wheel bracket 157. A brake guide pin 158 is provided on the brake shoe 152. The brake guide pin 158 passes through the wheel bracket 157 and the brake wheel cover 156 in sequence and then extends out. The position of the brake guide pin 158 between the brake shoe 152 and the wheel bracket 157 is provided with a No. 2 spring 159.

[0071] Embodiment 3:

[0072] The basic content is the same as that of Example 1, except that:

[0073] See also Figures 1 to 24The frame 11 is provided with a track gauge ruler 2, and the track gauge ruler 2 includes a bottom plate 21, a first rack 22 and a second rack 23. An intermediate gear 24 is provided at the center of the bottom plate 21. The bottom plate 21 is provided with a first mounting groove 211 and a second mounting groove 212 at the two sides of the intermediate gear 24. The first rack 22 is arranged in the first mounting groove 211, and the first rack 22 is meshed with the intermediate gear 24. A mounting column 221 is provided at one end of the first rack 22, and a first spring 25 is mounted on the mounting column 221. The first spring 25 is fixed in the first mounting groove 211 through a spring pressure block 26. The other end of the first rack 22 is connected to the first mounting groove 211 through an electrically insulating bearing seat. 222 is connected with an electrically insulating bearing 27, a scale 223 is provided on the No. 1 rack 22, the No. 2 rack 23 is arranged in the No. 2 mounting groove 212, the No. 2 rack 23 is meshed with the intermediate gear 24, one end of the No. 2 rack 23 is provided with a mounting column 221, the mounting column 221 is provided with a No. 1 spring 25, the No. 1 spring 25 is fixed in the No. 2 mounting groove 212 through a spring pressure block 26, the other end of the No. 2 rack 23 is connected with an electrically insulating bearing 27 through an electrically insulating bearing seat 222, a pointer 231 is provided on the No. 2 rack 23, the electrically insulating bearings 27 of the No. 1 rack 22 and the No. 2 rack 23 are in contact with the inner side surfaces of the left rail 6 and the right rail 7 respectively, and the bottom plate 2 1. The No. 1 rack 22 and the No. 2 rack 23 are both equipped with a support frame 28, and the support frame 28 is connected to the frame 11; the support frame 28 includes a sliding block and a mounting plate 283, the sliding block is connected to the mounting plate 283, and the mounting plate 283 is connected to the frame 11. The sliding block is a hollow structure, and the sliding block is mounted on the bottom plate 21, the No. 1 rack 22, and the No. 2 rack 23. The inner top surface of the sliding block is provided with an upper ball, and the upper ball cooperates with the slide groove 213 on the upper end surface of the bottom plate 21, the No. 1 rack 22, and the No. 2 rack 23. The inner bottom surface of the sliding block is provided with a lower ball 284, and the lower ball 284 is connected to the bottom plate 21, the No. 1 rack 22, and the No. 2 rack 23. The sliding block cooperates with the slide groove 213 on the surface, and the two inner side surfaces of the sliding block are provided with roller needles 285 that contact the two side surfaces of the bottom plate 21, the No. 1 rack 22, and the No. 2 rack 23; the sliding block includes a base 281 and a rack cover plate 282, the base 281 is a U-shaped structure, the inner bottom surface of the base 281 is provided with a lower ball 284, and the two inner side surfaces of the base 281 are provided with roller needles 285, the rack cover plate 282 is connected to the top of the base 281, and the bottom surface of the rack cover plate 282 is provided with an upper ball, the mounting plate 283 is an L-shaped structure, and the horizontal plate of the mounting plate 283 is provided with a fixing hole connected to the frame 11, and the vertical plate of the mounting plate 283 is connected to the base 281.

[0074] Embodiment 4:

[0075] The basic content is the same as that of Example 3, except that:

[0076] See also Figures 1 to 24 The inspection vehicle also includes a second prism measuring device 4, which includes a second prism 41, a second prism rod 42, a pressure block 43, a universal ball head 44 and a universal ball support 45. One end of the second prism rod 42 is connected to the second prism 41, and the other end of the second prism rod 42 is connected to the pressure block 43. The pressure block 43 is fixed to the bottom plate 21 at a position directly above the intermediate gear 24. A mounting through hole 451 is opened in the middle of the universal ball support 45, and the universal ball support 45 is connected to the top of the pressure block 43. The top of the pressing block 43 is provided with a conical hole 431 coaxial with the mounting through hole 451, the universal ball head 44 includes a rod body 441 and a universal ball 442, the rod body 441 is connected to the second prism rod 42, the universal ball 442 is located in the mounting through hole 451, and the bottom of the universal ball 442 is located in the conical hole 431, and the side of the universal ball support 45 is provided with an adjustment threaded hole 452 connected to the mounting through hole 451, and a butterfly bolt is installed in the adjustment threaded hole 452, and the butterfly bolt is against the universal ball 442.

[0077] Embodiment 5:

[0078] The basic content is the same as that of Example 1, except that:

[0079] See also Figures 1 to 24The frame 11 is provided with an overheight detector 3, which includes a gearbox support plate 31, a gearbox 32, a balance block 33, a dial 34 and a pointer 35. The bottom of the gearbox support plate 31 is connected to the frame 11, the gearbox 32 is arranged on the back of the gearbox support plate 31, the balance block 33 is arranged on the back of the gearbox 32, and the dial 34 is arranged on the front of the gearbox support plate 31. The gearbox 32 is provided with a first connecting shaft 321, a second connecting shaft 322 and a third connecting shaft 323. One end of the first connecting shaft 321 is connected to the gearbox 322. The first connecting shaft 321 is connected to the gearbox 32 after passing through the gearbox 32, and the first gear 324 is mounted on the outer wall of the first connecting shaft 321. Both ends of the second connecting shaft 322 are connected to the gearbox 32. The second gear 325 and the third gear 326 are mounted on the outer wall of the second connecting shaft 322. The second gear 325 is meshed with the first gear 324. One end of the third connecting shaft 323 passes through the gearbox 32 and is connected to the pointer 35. The other end of the third connecting shaft 323 is connected to the gearbox 32. 2 is connected, and a fourth gear 327 meshing with the third gear 326 is mounted on the outer wall of the third connecting shaft 323; the balancing block 33 is in the shape of a double kidney, and the balancing block 33 includes a left kidney plate 331, a right kidney plate 332 and a connecting plate 333, and the left and right sides of the connecting plate 333 are respectively connected to the left kidney plate 331 and the right kidney plate 332, and the connecting plate 333 is connected to the first connecting shaft 321, and the left kidney plate 331 and the right kidney plate 332 are both provided with a horizontal bubble 334; the dial 34 includes a dial cover 341 and a dial 342, and the dial cover 341 One end is inserted on the gearbox support plate 31, and the other end of the dial cover 341 is provided with a transparent protective cover 343. The dial 342 is connected to the inner wall of the dial cover 341. Threaded holes 311 are provided on the left and right sides of the gearbox support plate 31. Ball-shaped positioning screws 312 and adjusting bolts 313 are provided in sequence in the threaded holes 311. One end of the ball-shaped positioning screw 312 is connected to the adjusting bolt 313. An annular groove 344 is provided on the outer wall of the dial cover 341 along the circumferential direction, and the other end of the ball-shaped positioning screw 312 is located in the annular groove 344.

Claims

1. A railway rail center detection vehicle, characterized in that: The invention comprises a walking trolley (1) and a No. 1 prism measuring device (5); the walking trolley (1) comprises a frame (11) and a push rod (12) connected to each other; a nylon wheel (13) is arranged at the bottom of one end of the frame (11), and the nylon wheel (13) is arranged on a left steel rail (6); a steel groove wheel (14) is arranged at the bottom of the other end of the frame (11), and the steel groove wheel (14) is clamped on a right steel rail (7); The first prism measuring device (5) comprises a first prism (51), a first prism rod (52) and a joint bearing seat (53); a mounting hole (531) is provided in the middle of the joint bearing seat (53); a joint bearing (54) is arranged in the mounting hole (531); limiting holes (532) are provided on both sides of the joint bearing seat (53); bolts (55) are arranged in the limiting holes (532); the bolts (55) support the joint bearing (54); the joint bearing seat (53) is located on the right rail (7), and the joint bearing seat (53) is connected to the vehicle frame (11), one end of the No. 1 prism rod (52) is connected to the No. 1 prism (51), the center of the No. 1 prism (51) coincides with the center of the right rail (7), the other end of the No. 1 prism rod (52) is threadedly connected to one end of the prism rod joint (56), the other end of the prism rod joint (56) is inserted into the joint bearing (54), and a universal bracket (57) is connected between the No. 1 prism rod (52) and the vehicle frame (11); The frame (11) is provided with a track gauge ruler (2), the track gauge ruler (2) comprising a base plate (21), a first rack (22) and a second rack (23), an intermediate gear (24) being provided at the exact center of the base plate (21), a first mounting groove (211) and a second mounting groove (212) being respectively provided at the positions on both sides of the intermediate gear (24) on the base plate (21), the first rack (22) being provided in the first mounting groove (211) and the second mounting groove (212) being provided in the second mounting groove (212), and the first rack (22) being provided in the second mounting groove (212). 211), a No. 1 rack (22) meshes with an intermediate gear (24), one end of the No. 1 rack (22) is provided with a mounting column (221), a No. 1 spring (25) is mounted on the mounting column (221), the No. 1 spring (25) is fixed in the No. 1 mounting groove (211) through a spring pressure block (26), the other end of the No. 1 rack (22) is connected to an electrically insulating bearing (27) through an electrically insulating bearing seat (222), and the No. 1 rack (22) The second rack (23) is provided with a scale (223), the second rack (23) is arranged in the second installation groove (212), the second rack (23) is meshed with the intermediate gear (24), one end of the second rack (23) is provided with a mounting column (221), the mounting column (221) is provided with a first spring (25), the first spring (25) is fixed in the second installation groove (212) through a spring pressure block (26), and the other end of the second rack (23) is fixed through an electric The insulating bearing seat (222) is connected to an electrically insulating bearing (27), a pointer is arranged on the No. 2 rack (23), the electrically insulating bearings (27) of the No. 1 rack (22) and the No. 2 rack (23) are in contact with the inner side surfaces of the left rail (6) and the right rail (7) respectively, and a support frame (28) is mounted on the bottom plate (21), the No. 1 rack (22) and the No. 2 rack (23), and the support frame (28) is connected to the vehicle frame (11); The vehicle frame (11) is provided with an ultra-high detector (3), the ultra-high detector (3) comprising a gearbox support plate (31), a gearbox (32), a balance block (33), a dial (34) and a pointer (35); the bottom of the gearbox support plate (31) is connected to the vehicle frame (11); the gearbox (32) is arranged on the back of the gearbox support plate (31); the balance block (33) is arranged on the back of the gearbox (32); the dial (34) is arranged on the front of the gearbox support plate (31); a first connecting shaft (321), a second connecting shaft (322) and a third connecting shaft (323) are arranged inside the gearbox (32); one end of the first connecting shaft (321) passes through the gearbox (32) and is connected to the balance block (33) The other end of the first connecting shaft (321) is connected to the gearbox (32), a first gear (324) is mounted on the outer wall of the first connecting shaft (321), both ends of the second connecting shaft (322) are connected to the gearbox (32), a second gear (325) and a third gear (326) are mounted on the outer wall of the second connecting shaft (322), the second gear (325) is meshed with the first gear (324), one end of the third connecting shaft (323) passes through the gearbox (32) and is connected to the pointer (35), the other end of the third connecting shaft (323) is connected to the gearbox (32), and a fourth gear (327) meshed with the third gear (326) is mounted on the outer wall of the third connecting shaft (323).

2. A railway rail center detection vehicle according to claim 1, characterized in that: The frame (11) is a T-shaped structure, comprising a crossbeam (111) and a longitudinal beam (112), a nylon wheel (13) is arranged at the bottom of one end of the crossbeam (111), the other end of the crossbeam (111) is vertically connected to the longitudinal beam (112), the longitudinal beam (112) is located directly above the right steel rail (7), steel groove wheels (14) are arranged at the bottom of both ends of the longitudinal beam (112), and the push rod (12) is connected to the crossbeam (111).

3. The railway rail center detection vehicle according to claim 1, characterized in that: The walking trolley (1) also includes a brake device (15), which includes a brake handle (150), a brake lever (151) and a brake shoe (152). One end of the brake lever (151) is connected to a brake pin (153), and the other end of the brake lever (151) is connected to the brake handle (150) through a brake line (154). The brake handle (150) is connected to a hand push rod (12). The brake lever (151) is hinged to a brake lever base (155). The brake lever base (155) is connected to the top of a brake wheel cover plate (156). The bottom of the brake wheel cover plate (156) is connected to the vehicle frame (11). The brake wheel cover plate (156) is connected to the vehicle frame (11). The bottom of the steel groove wheel (14) is connected to a wheel bracket (157), the brake pin (153) passes through the brake wheel cover plate (156) and the wheel bracket (157) in sequence and is connected to the brake shoe (152), the brake shoe (152) is located directly above the steel groove wheel (14), and the two ends of the steel groove wheel (14) are respectively connected to the two sides of the wheel bracket (157), and the brake guide pin (158) is provided on the brake shoe (152), and the brake guide pin (158) passes through the wheel bracket (157) and the brake wheel cover plate (156) in sequence and then extends out, and the brake guide pin (158) is provided with a second spring (159) at a position between the brake shoe (152) and the wheel bracket (157).

4. The railway rail center detection vehicle according to claim 1, characterized in that: The support frame (28) comprises a sliding block and a mounting plate (283), wherein the sliding block is connected to the mounting plate (283), and the mounting plate (283) is connected to the vehicle frame (11). The sliding block is a hollow structure, and the sliding block is mounted on the bottom plate (21), the first rack (22), and the second rack (23). An upper ball is arranged on the inner top surface of the sliding block, and the upper ball matches with a slide groove (213) on the upper end surface of the bottom plate (21), the first rack (22), and the second rack (23). A lower ball (284) is arranged on the inner bottom surface of the sliding block, and the lower ball (284) matches with the slide groove (213) on the lower end surface of the bottom plate (21), the first rack (22), and the second rack (23). Two inner side surfaces of the sliding block are provided with roller needles (285) that contact the two side surfaces of the bottom plate (21), the first rack (22), and the second rack (23).

5. The railway rail center detection vehicle according to claim 4, characterized in that: The sliding block comprises a base (281) and a rack cover plate (282); the base (281) is a U-shaped structure; the inner bottom surface of the base (281) is provided with a lower ball bearing (284); both inner side surfaces of the base (281) are provided with roller needles (285); the rack cover plate (282) is connected to the top of the base (281); the bottom surface of the rack cover plate (282) is provided with an upper ball bearing; the mounting plate (283) is an L-shaped structure; a fixing hole connected to the vehicle frame (11) is provided on the horizontal plate of the mounting plate (283); and the vertical plate of the mounting plate (283) is connected to the base (281).

6. The railway rail center detection vehicle according to claim 1, characterized in that: The inspection vehicle further comprises a No. 2 prism measuring device (4), the No. 2 prism measuring device (4) comprising a No. 2 prism (41), a No. 2 prism rod (42), a pressure block (43), a universal ball head (44) and a universal ball support (45), one end of the No. 2 prism rod (42) is connected to the No. 2 prism (41), the other end of the No. 2 prism rod (42) is connected to the pressure block (43), the pressure block (43) is fixed to the bottom plate (21) at a position directly above the intermediate gear (24), a mounting through hole (451) is provided in the middle of the universal ball support (45), and the universal ball support (45) is connected to the top of the pressure block (43). The pressing block (43) is connected with the second prism rod (42) by a conical hole (431) coaxial with the mounting through hole (451) on the top thereof; the universal ball head (44) comprises a rod body (441) and a universal ball (442); the rod body (441) is connected with the second prism rod (42); the universal ball (442) is located in the mounting through hole (451); and the bottom of the universal ball (442) is located in the conical hole (431); and the side of the universal ball support (45) is provided with an adjusting threaded hole (452) communicating with the mounting through hole (451); a butterfly bolt is installed in the adjusting threaded hole (452); and the butterfly bolt abuts against the universal ball (442).

7. The railway rail center detection vehicle according to claim 1, characterized in that: The balancing block (33) is in the shape of a double kidney. The balancing block (33) comprises a left kidney plate (331), a right kidney plate (332) and a connecting plate (333). The left and right sides of the connecting plate (333) are respectively connected to the left kidney plate (331) and the right kidney plate (332). The connecting plate (333) is connected to the first connecting shaft (321). Horizontal bubbles (334) are provided on the left kidney plate (331) and the right kidney plate (332).

8. The railway rail center detection vehicle according to claim 1, characterized in that: The dial (34) comprises a dial cover (341) and a dial (342); one end of the dial cover (341) is inserted into the gearbox support plate (31); the other end of the dial cover (341) is provided with a transparent protective cover (343); the dial (342) is connected to the inner wall of the dial cover (341); threaded holes (311) are provided on both the left and right sides of the gearbox support plate (31); a ball-shaped positioning screw (312) and an adjusting bolt (313) are provided in the threaded holes (311) in sequence; one end of the ball-shaped positioning screw (312) is connected to the adjusting bolt (313); an annular groove (344) is provided on the outer wall of the dial cover (341) along the circumferential direction; the other end of the ball-shaped positioning screw (312) is located in the annular groove (344).

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