Vehicle-mounted dynamic measuring device for abrasion loss of groove type steel rail of tramcar

Abstract

The invention discloses a tramcar groove type steel rail abrasion loss vehicle-mounted dynamic measuring device, and relates to the technical field of rail traffic, the tramcar groove type steel rail abrasion loss vehicle-mounted dynamic measuring device comprises a measuring mechanism, a cleaning mechanism and a pressurizing mechanism, the measuring mechanism comprises a first motor and a laser radar, the laser radar is vertically arranged downwards, and the first motor drives the laser radar to ascend and descend; when the laser radar approaches the rail groove of the groove-shaped steel rail, three-dimensional size data of the rail groove in the groove-shaped steel rail are automatically scanned; the cleaning mechanism comprises a second motor and a cleaning pipe, cleaning holes and cleaning bristles are densely distributed on the cleaning pipe, the second motor drives the cleaning pipe to swing, and when the cleaning pipe passes through the position below the laser radar, windshield washer fluid pressurized by the pressurizing mechanism is sprayed to the scanning face of the laser radar through the cleaning holes. And the scanning surface of the laser radar is cleaned through the cleaning bristles. The device has the advantages of being reasonable in scheme, ingenious in structure and convenient to use, the rail groove of the groove type steel rail can be accurately measured, and self-cleaning is achieved after measurement.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and in particular to a vehicle-mounted dynamic measuring device for the wear of grooved rails of trams. Background Art

[0002] Compared with ordinary railways, tram lines have smaller curve radii, with a minimum radius of up to 30m, and there are many curved sections, so they have more complex wear conditions. Theory shows that as the wear of the rails increases, it will cause huge hidden dangers to the operational safety of trams. When the tram wheels roll on the grooved rails, the wear they contact is mainly on the top and side of the grooved rails. However, the wear measurement is often measured using a wear meter. For example, Chinese patent CN205808311U "A Groove Rail Head Side Wear Measuring Instrument" discloses a measuring instrument, which has low test efficiency, is time-consuming and labor-intensive, and can only measure the rail wear when the tram stops operating. It cannot dynamically reflect the rail wear at all times and compare and make corresponding dynamic warnings. Therefore, a new test device that can dynamically measure the wear of tram grooved rails in real time is needed, which can be used for monitoring and early warning of tram operation safety and ensure the safe operation of trams. Summary of the invention

[0003] The object of the present invention is to provide a vehicle-mounted dynamic measuring device for the wear of grooved rails of trams, so as to solve the above-mentioned defects caused by the prior art.

[0004] A vehicle-mounted dynamic measuring device for the wear of grooved rails of trams comprises a measuring mechanism, a cleaning mechanism and a pressurizing mechanism, wherein:

[0005] The measuring mechanism includes a motor 1 and a laser radar. The laser radar is arranged vertically downward and driven by the motor 1 to move up and down. When the laser radar approaches the groove of the grooved steel rail, the three-dimensional size data of the groove in the grooved steel rail is automatically scanned.

[0006] The cleaning mechanism includes a second motor and a cleaning tube, and the cleaning tube is densely covered with cleaning holes and cleaning bristles. The cleaning tube is driven by the second motor to swing. When the cleaning tube passes under the laser radar, the glass water pressurized by the boosting mechanism is sprayed onto the scanning surface of the laser radar through the cleaning holes, and the scanning surface of the laser radar is cleaned by the cleaning bristles.

[0007] Preferably, the measuring mechanism also includes an installation box, the motor 1 is provided with a pair and distributed in parallel front and back, the motor 1 is installed at the bottom of the installation box through a fixing plate 1, the motor 1 is a double-headed motor and is connected to a lead screw at its two output ends through a coupling, the thread pitches on the two lead screws are the same and the rotation directions are opposite, each lead screw is connected to a sliding plate through a lead screw nut, a lifting plate is provided in parallel directly below the installation box, and a pair of hinged strips are connected in parallel between each corner of the lifting plate and the adjacent sliding plate, the left and right sides of the lifting plate are slidably connected with connecting rods, the bottom ends of the two connecting rods are commonly connected to a connecting ring, and a pair of compression springs 1 are symmetrically provided between the connecting ring and the lifting plate, a connecting hoop is coaxially provided inside the connecting ring, and a number of compression springs 2 are evenly provided between the connecting hoop and the connecting ring, and the laser radar is installed vertically downward inside the connecting hoop.

[0008] Preferably, the second motor is centrally installed on the lower side of the lifting plate through the second fixing plate, and an eccentric wheel is keyed at its output end, an eccentric shaft is eccentrically connected to the eccentric wheel, a hinge seat is centrally connected to the upper side of the lifting plate, and a hinge column is vertically connected to the upper end of the hinge seat, a telescopic arm is hinged on the hinge column, a sliding groove is provided on the upper part of the telescopic arm, and the eccentric shaft is slidably connected in the sliding groove, the cleaning tube is vertically connected to the lower end of the telescopic arm, a row of cleaning holes is centrally provided on the upper side of the cleaning tube, and cleaning hairs are densely distributed on the left and right sides of the cleaning holes, and the outer end of the cleaning tube is connected to a liquid inlet pipe.

[0009] Preferably, the interior of the installation box consists of a battery compartment and a liquid storage compartment, a battery is installed in the battery compartment, the battery is electrically connected to motor one, motor two and the laser radar respectively, and the liquid storage compartment is filled with windshield washer fluid.

[0010] Preferably, the boosting mechanism is provided with a pair and is symmetrically distributed at the bottom of the installation box, the boosting mechanism includes a piston cylinder, the piston cylinder is arranged in a left-right direction and is installed on the bottom of the installation box through a pair of fixing plates, the inside of the piston cylinder is slidably connected to a piston block, and a one-way valve is connected to the center of the piston block, the outer end of the piston cylinder is connected to a suction pipe and connected to the bottom of the liquid storage bin, the inner end of the piston cylinder is connected to a discharge pipe and connected to the top of the liquid inlet pipe, the outside of the piston cylinder is slidably connected to a moving ring, a plurality of magnet blocks are evenly inlaid on the inner wall of the moving ring, and the magnet block and the piston block are connected by magnetic force, a moving bar is horizontally fixed to the outer side of the moving ring, and the moving bar is welded between the front and rear sliding plates.

[0011] Preferably, a guide rail is provided above the lead screw in parallel, and the guide rail is installed at the bottom of the installation box. A sliding block is slidably connected to the guide rail, and the sliding block is connected to the top of the adjacent sliding plate.

[0012] Preferably, a rubber strip is adhered to the inner wall of the connecting hoop.

[0013] Preferably, a pair of protective shells are symmetrically provided on the left and right sides of the laser radar, and the protective shells on the same side are installed on the front and rear hinge bars.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present invention can achieve accurate measurement. When measurement is required, the motor 1 rotates forward and drives the hinge bars on the left and right sides to move closer to the middle, thereby driving the laser radar to move downward and close to the grooved rail, and then the laser radar is used to automatically scan the three-dimensional size data of the rail groove in the grooved rail. During the measurement, the compression spring 1 and the compression spring 2 can play a protective role of shock absorption and buffering.

[0016] 2. The present invention can realize automatic cleaning. After the measurement is completed, the telescopic arm is driven by the motor to swing left and right. When the cleaning tube passes under the laser radar, the glass water pressurized by the pressurizing mechanism is sprayed onto the scanning surface of the laser radar through the cleaning hole, and the scanning surface of the laser radar is cleaned by the cleaning hair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the overall front view of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the present invention as a whole when viewed from above.

[0020] Figure 4 It is a schematic diagram of the overall three-dimensional structure of the measuring mechanism.

[0021] Figure 5 This is a schematic diagram of the structure of the measuring mechanism as a whole.

[0022] Figure 6 It is a schematic diagram of the local three-dimensional structure of the measuring mechanism.

[0023] Figure 7 It is a schematic diagram of the overall three-dimensional structure of the cleaning mechanism.

[0024] Figure 8 It is a schematic diagram of the local three-dimensional structure of the cleaning mechanism.

[0025] Fig. 9 It is a schematic diagram of the overall three-dimensional structure of the booster mechanism.

[0026] Fig.10 It is a structural schematic diagram of a partial cross-section of the boosting mechanism.

[0027] Fig.11 It is a schematic diagram of the local three-dimensional structure of the boosting mechanism.

[0028] in:

[0029] 10- measuring mechanism; 101- installation box; 102- motor 1; 103- fixed plate 1; 104- coupling; 105- lead screw; 106- lead screw nut; 107- sliding plate; 108- guide rail; 109- sliding block; 110- lifting plate; 111- hinged bar; 112- connecting rod; 113- connecting ring; 114- compression spring 1; 115- connecting hoop; 116- rubber strip; 117- compression spring 2; 118- laser radar; 119- protective shell;

[0030] 20-cleaning mechanism; 201-motor 2; 202-fixed plate 2; 203-eccentric wheel; 204-eccentric shaft; 205-hinged seat; 206-hinged column; 207-telescopic arm; 207a-sliding groove; 208-cleaning pipe; 208a-cleaning hole; 208b-cleaning hair; 209-liquid inlet pipe;

[0031] 30-boosting mechanism; 301-piston cylinder; 302-fixed plate three; 303-piston block; 304-check valve; 305-intake pipe; 306-discharge pipe; 307-moving ring; 308-magnet block; 309-moving bar. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figures 1 to 11 As shown, a vehicle-mounted dynamic measuring device for tram groove rail wear includes a measuring mechanism 10, a cleaning mechanism 20 and a pressurizing mechanism 30, wherein:

[0034] The measuring mechanism 10 includes a motor 102 and a laser radar 118. The laser radar 118 is vertically arranged downward and driven by the motor 102 to move up and down. When the laser radar 118 approaches the groove of the grooved rail, the three-dimensional size data of the groove in the grooved rail is automatically scanned.

[0035] The cleaning mechanism 20 includes a second motor 201 and a cleaning tube 208. The cleaning tube 208 is densely covered with cleaning holes 208a and cleaning bristles 208b. The cleaning tube 208 is driven by the second motor 201 to swing. When the cleaning tube 208 passes under the laser radar 118, the glass water pressurized by the boosting mechanism 30 is sprayed onto the scanning surface of the laser radar 118 through the cleaning holes 208a, and the scanning surface of the laser radar 118 is cleaned through the cleaning bristles 208b.

[0036] In this embodiment, the measuring mechanism 10 further includes a mounting box 101, a pair of motors 102 are provided and are parallelly distributed front and back, the motor 102 is installed at the bottom of the mounting box 101 through a fixing plate 103, the motor 102 is a double-headed motor and is connected to a lead screw 105 at both output ends through a coupling 104, the thread pitches on the two lead screws 105 are the same and the rotation directions are opposite, each lead screw 105 is connected to a sliding plate 107 through a lead screw nut 106, and a lifting plate 110 is provided in parallel directly below the mounting box 101, and the lifting plate 110 A pair of hinged bars 111 are parallelly connected between each corner of the lifting plate 110 and the adjacent sliding plate 107, and connecting rods 112 are slidably connected to the left and right sides of the lifting plate 110. The bottom ends of the two connecting rods 112 are commonly connected to the connecting ring 113, and a pair of compression springs 114 are symmetrically arranged between the connecting ring 113 and the lifting plate 110. A connecting hoop 115 is coaxially arranged inside the connecting ring 113, and a number of compression springs 117 are evenly arranged between the connecting hoop 115 and the connecting ring 113. The laser radar 118 is vertically installed downward inside the connecting hoop 115. When measurement is required, the motor 102 rotates forward and drives the hinged bars 111 on the left and right sides to move closer to the middle, thereby driving the laser radar 118 to move downward and approach the grooved rail, and then the laser radar 118 is used to automatically scan the three-dimensional size data of the rail groove in the grooved rail. During the measurement, the compression springs 114 and 117 can play a protective role in shock absorption and buffering. When the measurement is completed, the motor 102 is reversed and drives the hinge strips 111 on the left and right sides to expand to both sides, thereby driving the laser radar 118 to move upward and away from the grooved rail.

[0037] In this embodiment, the motor 201 is centrally installed on the lower side of the lifting plate 110 through the fixing plate 202, and an eccentric wheel 203 is keyed at its output end, an eccentric shaft 204 is eccentrically connected to the eccentric wheel 203, a hinge seat 205 is centrally connected to the upper side of the lifting plate 110, and a hinge column 206 is vertically connected to the upper end of the hinge seat 205, a telescopic arm 207 is hinged on the hinge column 206, a sliding groove 207a is provided on the upper part of the telescopic arm 207, and the eccentric shaft 204 is slidably connected in the sliding groove 207a, the cleaning tube 208 is vertically connected to the lower end of the telescopic arm 207, a row of cleaning holes 208a is centrally provided on the upper side of the cleaning tube 208, and cleaning hairs 208b are densely distributed on the left and right sides of the cleaning hole 208a, and the outer end of the cleaning tube 208 is connected to a liquid inlet pipe 209. After the measurement is completed, the telescopic arm 207 is driven by the motor 102 to swing left and right. When the cleaning tube 208 passes under the laser radar 118, glass water is sprayed onto the scanning surface of the laser radar 118 through the cleaning hole 208a, and the scanning surface of the laser radar 118 is cleaned through the cleaning bristles 208b.

[0038] In this embodiment, the interior of the installation box 101 is composed of a battery compartment and a liquid storage compartment, wherein a battery is installed in the battery compartment, and the battery is electrically connected to the motor 1 102, the motor 2 201 and the laser radar 118, respectively, and the liquid storage compartment is filled with windshield washer fluid. The battery in the battery compartment can power the motor 1 102, the motor 2 201 and the laser radar 118.

[0039] In this embodiment, the boosting mechanism 30 is provided with a pair of and symmetrically distributed at the bottom of the installation box 101, the boosting mechanism 30 includes a piston cylinder 301, the piston cylinder 301 is arranged in a left-right direction and is installed at the bottom of the installation box 101 through a pair of fixing plates 302, the interior of the piston cylinder 301 is slidably connected with a piston block 303, and a one-way valve 304 is connected to the center of the piston block 303, the outer end of the piston cylinder 301 is connected with a suction pipe 305 and is connected to the bottom of the liquid storage bin, the inner end of the piston cylinder 301 is connected with a discharge pipe 306 and is connected to the top of the liquid inlet pipe 209, the outer side of the piston cylinder 301 is slidably connected with a moving ring 307, the inner wall of the moving ring 307 is evenly inlaid with a plurality of magnet blocks 308, and the magnet blocks 308 are connected to the piston block 303 by magnetic force, the outer side of the moving ring 307 is horizontally fixed with a moving bar 309, and the moving bar 309 is welded between the front and rear sliding plates 107. The glass water in the liquid storage tank is transferred to the inside of the piston cylinder 301 through the suction pipe 305. When the sliding plate 107 moves outward, the piston block 303 can be driven outward synchronously under the action of magnetic force. Since the one-way valve 304 is in the conducting state, the glass water in the piston cylinder 301 passes through the one-way valve 304 and is transferred to the inside of the piston block 303. When the sliding plate 107 moves inward, the piston block 303 can be driven inward synchronously under the action of magnetic force. Since the one-way valve 304 is in the blocking state, the glass water in the piston cylinder 301 passes through the discharge pipe 306 and the liquid inlet pipe 209 and is transferred to the inside of the cleaning pipe 208.

[0040] In this embodiment, a guide rail 108 is provided above the lead screw 105 in parallel, and the guide rail 108 is installed at the bottom of the installation box 101. A sliding block 109 is slidably connected to the guide rail 108, and the sliding block 109 is connected to the top of the adjacent sliding plate 107. By adding the above-mentioned guide structure, the lead screw 105 can be prevented from bending and deforming after being subjected to a downward external force.

[0041] In this embodiment, a rubber strip 116 is attached to the inner wall of the connecting hoop 115. The rubber strip 116 can increase the friction between the connecting hoop 115 and the laser radar 118, and at the same time, the rubber strip 116 can provide a shock-absorbing and buffering protective effect on the laser radar 118.

[0042] In this embodiment, a pair of protective shells 119 are symmetrically provided on the left and right sides of the laser radar 118, and the protective shells 119 on the same side are installed on the front and rear hinge bars 111. When the laser radar 118 rises to a preset height, the pair of protective shells 119 will automatically surround the outer periphery of the laser radar 118 to protect the scanning surface of the laser radar 118 when not in operation; when the laser radar 118 descends to a preset height, the pair of protective shells 119 will automatically unfold on the left and right sides of the laser radar 118 to avoid blocking the scanning surface of the laser radar 118 when in operation.

[0043] Working principle of this tram groove rail wear measurement device:

[0044] The measuring device is fixed to the bottom of the tram. When measurement is required, the motor 102 rotates forward and drives the hinged bars 111 on the left and right sides to move closer to the middle, thereby driving the laser radar 118 to move downward and close to the grooved rail, and then the laser radar 118 is used to automatically scan the three-dimensional size data of the rail groove in the grooved rail. During the measurement, the compression spring 114 and the compression spring 2 117 can play a protective role in shock absorption and buffering. When the measurement is completed, the motor 102 is reversed and drives the hinged bars 111 on the left and right sides to expand to both sides, thereby driving the laser radar 118 to move upward and away from the grooved rail. After the measurement is completed, the telescopic arm 207 is driven by the motor 102 to swing left and right. When the cleaning tube 208 passes under the laser radar 118, glass water is sprayed on the scanning surface of the laser radar 118 through the cleaning hole 208a, and the scanning surface of the laser radar 118 is cleaned through the cleaning hair 208b.

[0045] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A vehicle-mounted dynamic measuring device for tram groove rail wear, characterized in that: It comprises a measuring mechanism (10), a cleaning mechanism (20) and a pressurizing mechanism (30), wherein: The measuring mechanism (10) comprises a motor (102) and a laser radar (118), wherein the laser radar (118) is arranged vertically downward and driven by the motor (102) to move up and down. When the laser radar (118) approaches the groove of the grooved steel rail, the three-dimensional size data of the groove in the grooved steel rail is automatically scanned; The cleaning mechanism (20) comprises a second motor (201) and a cleaning tube (208). The cleaning tube (208) is densely covered with cleaning holes (208a) and cleaning hairs (208b). The second motor (201) drives the cleaning tube (208) to swing. When the cleaning tube (208) passes under the laser radar (118), glass water pressurized by the boosting mechanism (30) is sprayed onto the scanning surface of the laser radar (118) through the cleaning holes (208a), and the scanning surface of the laser radar (118) is cleaned through the cleaning hairs (208b).

2. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 1, characterized in that: The measuring mechanism (10) further comprises a mounting box (101), wherein a pair of motors (102) are arranged in parallel in front and back, wherein the motors (102) are mounted on the bottom of the mounting box (101) via a fixing plate (103), wherein the motors (102) are double-headed motors and are connected to lead screws (105) at both output ends via couplings (104), wherein the thread pitches of the two lead screws (105) are the same and the rotation directions are opposite, and each lead screw (105) is connected to a sliding plate (107) via a lead screw nut (106), and a lifting plate (110) is arranged in parallel directly below the mounting box (101), and each of the lifting plates (110) is provided with a plurality of guide screws (105) and a plurality of guide screws (105) connected to the sliding plate (107). A pair of hinge bars (111) are parallelly connected between each corner and the adjacent sliding plate (107); the left and right sides of the lifting plate (110) are slidably connected with connecting rods (112); the bottom ends of the two connecting rods (112) are commonly connected to a connecting ring (113); and a pair of compression springs (114) are symmetrically arranged between the connecting ring (113) and the lifting plate (110); a connecting hoop (115) is coaxially arranged inside the connecting ring (113); and a plurality of compression springs (117) are evenly arranged between the connecting hoop (115) and the connecting ring (113); and the laser radar (118) is vertically installed downward inside the connecting hoop (115).

3. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 2, characterized in that: The second motor (201) is centrally mounted on the lower side of the lifting plate (110) through the second fixing plate (202), and an eccentric wheel (203) is keyed at its output end, an eccentric shaft (204) is eccentrically connected to the eccentric wheel (203), an articulated seat (205) is centrally connected to the upper side of the lifting plate (110), and an articulated column (206) is vertically connected to the upper end of the articulated seat (205), and a telescopic arm (207) is articulated to the articulated column (206), The upper part of the telescopic arm (207) is provided with a sliding groove (207a), and the eccentric shaft (204) is slidably connected in the sliding groove (207a). The cleaning tube (208) is vertically connected to the lower end of the telescopic arm (207). A row of cleaning holes (208a) is centrally provided on the upper side of the cleaning tube (208), and cleaning hairs (208b) are densely distributed on the left and right sides of the cleaning holes (208a). The outer end of the cleaning tube (208) is connected to a liquid inlet pipe (209).

4. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 3, characterized in that: The interior of the installation box (101) is composed of a battery compartment and a liquid storage compartment. A battery is installed in the battery compartment. The battery is electrically connected to the motor 1 (102), the motor 2 (201) and the laser radar (118) respectively. The liquid storage compartment is filled with windshield washer fluid.

5. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 4, characterized in that: The boosting mechanism (30) is provided with a pair of pistons symmetrically distributed below the installation box (101). The boosting mechanism (30) includes a piston cylinder (301). The piston cylinder (301) is arranged in a left-right direction and is installed on the bottom of the installation box (101) through a pair of fixing plates (302). The interior of the piston cylinder (301) is slidably connected to a piston block (303), and a one-way valve (304) is connected to the center of the piston block (303). The outer end of the piston cylinder (301) is connected to a suction pipe (305) and is connected to the liquid storage tank. The inner end of the piston cylinder (301) is connected to a discharge pipe (306) and is connected to the top of a liquid inlet pipe (209). The outer part of the piston cylinder (301) is slidably connected to a moving ring (307). A plurality of magnet blocks (308) are evenly inlaid on the inner wall of the moving ring (307). The magnet blocks (308) and the piston block (303) are connected by magnetic force. A moving bar (309) is horizontally fixed to the outer side of the moving ring (307), and the moving bar (309) is welded between the front and rear sliding plates (107).

6. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 1, characterized in that: A guide rail (108) is arranged parallel to the upper side of the lead screw (105), and the guide rail (108) is installed at the bottom of the installation box (101). A sliding block (109) is slidably connected to the guide rail (108), and the sliding block (109) is connected to the top of an adjacent sliding plate (107).

7. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 1, characterized in that: A rubber strip (116) is adhered to the inner wall of the connecting hoop (115).

8. The vehicle-mounted dynamic measuring device for tram groove rail wear according to claim 2, characterized in that: A pair of protective shells (119) are symmetrically arranged on the left and right sides of the laser radar (118), and the protective shells (119) located on the same side are installed on the front and rear hinge bars (111).

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