Beam bottom inspection vehicle

Abstract

The utility model provides a beam bottom inspection vehicle which comprises a truss mechanism, a sliding end walking mechanism, a fixed end walking mechanism, a hanging basket mechanism, an electric control system, an upper channel, a lower channel, a limiting baffle, a walking underframe assembly and a walking platform, the truss mechanism is of an inverted-U-shaped structure, and the walking underframe assembly and the walking platform are installed at the tops of the left end and the right end of the truss mechanism respectively. The sliding end walking mechanism is installed on the walking underframe assembly on one side, the fixed end walking mechanism and the electric control system are installed on the walking underframe assembly on the other side, the walking platforms on the two sides are each provided with an upper channel and a lower channel, and a hanging basket mechanism is installed in a U-shaped structure of the truss mechanism. A limiting baffle is installed on a truss mechanism rail on which the hanging basket mechanism moves up and down, and the electric control system is connected with electrical parts of the sliding end walking mechanism, the fixed end walking mechanism and the hanging basket mechanism. According to the utility model, an emergency escape channel can be provided when a worker checks that the beam bottom encounters an emergency situation, so that the safety of the worker is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge safety detection technical field, especially a beam bottom inspection car. BACKGROUND

[0002] In order to realize the daily inspection of bridge, the hoisting machinery is used to realize the maintenance of bridge during the construction period, and the hoisting machinery vehicle provides the operation platform for maintenance personnel.In the use process, since needing to go to the bottom of bridge, under the general condition, the staff operates through the basket on the jib, when the project ends, the land reclamation, the hoisting machinery cannot enter the scene, cannot satisfy the demand of long-term maintenance, and the hoisting machinery also does not have the safety of maintenance staff well.

[0003] Since the bridge is variable cross section, in order to adapt to the bridge inspection of different height, the basket is usually used for the maintenance operation of inspection personnel, since the basket is connected through the steel wire rope, when unilateral lifting appears the problem or breaks, no escape channel is provided for the staff, can only wait for rescue, cannot guarantee the safety of staff. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the defects of prior art, and provides a beam bottom inspection car, which is provided with a ladder and an up-and-down channel arranged on both sides of the truss mechanism, so as to provide an escape channel for the staff in case of emergency and protect the safety of the staff.

[0005] The utility model adopts the following technical scheme:

[0006] A beam bottom inspection car, which comprises a truss mechanism, a sliding end walking mechanism, a fixed end walking mechanism, a basket mechanism, an electric control system, an up-and-down channel, a limiting baffle, a walking underframe assembly and a walking platform.The truss mechanism is in inverted U-shaped structure, the walking underframe assembly and the walking platform are respectively installed at the top of the left and right ends of the truss mechanism, the sliding end walking mechanism is installed on the walking underframe assembly on one side, the fixed end walking mechanism and the electric control system are installed on the walking underframe assembly on the other side, the up-and-down channel is installed on the walking platform on both sides, the basket mechanism is installed in the U-shaped structure of the truss mechanism, the limiting baffle is installed on the track of the truss mechanism on which the basket mechanism runs up and down, and the electric control system is connected with the electrical parts of the sliding end walking mechanism, the fixed end walking mechanism and the basket mechanism.

[0007] Further, guardrails are installed around the walking underframe assembly and the walking platform.

[0008] Further, the truss mechanism is composed of horizontal trusses and vertical trusses, the horizontal trusses are installed at the bottom of the two vertical trusses, wherein the horizontal truss is composed of horizontal truss main chord, horizontal truss crossbar, horizontal truss vertical rod, horizontal truss diagonal rod and connecting flange. The horizontal truss main chord is arranged at four corners, the horizontal truss crossbar is connected to the two horizontal truss main chords in the horizontal direction through two connecting flanges at both ends, the horizontal truss vertical rod is connected to the two horizontal truss main chords in the vertical direction through two connecting flanges at both ends, and the diagonal rod is installed between the horizontally opposite horizontal truss main chords and the vertically opposite horizontal truss main chords, and the both ends of the diagonal rod are also fixed to the opposite horizontal truss main chords through two connecting flanges. The vertical truss is composed of a ladder, a cage, a vertical truss main chord, a vertical truss crossbar and a vertical truss diagonal rod. The vertical truss main chord is arranged at four corners, the vertical truss crossbar sequentially connects the vertical truss main chords, the ladder is installed inside the vertical truss crossbar, the cage is installed around the ladder, and the vertical truss diagonal rod is installed between the two vertical truss main chords on the same side.

[0009] Further, the up-and-down passage is composed of a turning plate, an up-and-down passage body main chord, an up-and-down passage crossbar and an up-and-down passage diagonal rod. The up-and-down passage body main chord is arranged at four corners, the two up-and-down passage main chords on the back side are connected as a whole through the up-and-down passage crossbar, the two up-and-down passage main chords on the left side and the right side are connected through the up-and-down passage crossbar at the top, and the up-and-down passage diagonal rod is further installed between the two up-and-down passage main chords on the back side and the left and right sides, and the turning plate is further installed in the frame surrounded by the up-and-down passage main chords.

[0010] Further, the sliding end walking mechanism includes a sliding mechanism, a sliding end eccentric connecting seat, a sliding end motor, a sliding hand brake, a sliding driving trolley, a sliding parking mechanism and a sliding slewing bearing. The sliding driving trolley is installed on the sliding parking mechanism, the sliding driving trolley is driven by the sliding end motor, the sliding hand brake is installed at the bottom of the sliding parking mechanism, the sliding parking mechanism is installed on the sliding slewing bearing, the sliding slewing bearing is installed on the sliding eccentric connecting seat, and the sliding eccentric connecting seat is installed on the sliding mechanism.

[0011] Further, the fixed end walking mechanism includes a fixed end connecting seat, a fixed end eccentric connecting seat, a fixed end motor, a fixed end parking mechanism, a fixed end driving trolley and a fixed end slewing bearing. The fixed end driving trolley is driven by the fixed end motor, the fixed end driving trolley is installed on the fixed end parking mechanism, the fixed end hand brake is installed at the bottom of the fixed end parking mechanism, the fixed end parking mechanism is installed on the fixed end slewing bearing, the fixed end slewing bearing is installed on the fixed end eccentric connecting seat, and the fixed end eccentric connecting seat is installed on the fixed end connecting seat.

[0012] Further, the hanging basket mechanism comprises a hanging basket framework, guide wheels, a hoist rack, a control panel mounting rack, a control panel, a hoist, a safety lock and a travel switch assembly; the left end and the right end of the hanging basket framework are both provided with guide wheels, the hoist rack is mounted on the hanging basket framework at the upper part of the guide wheels, the hoist is mounted in the hoist rack, the safety lock and the travel switch assembly are mounted on the upper part of the hoist rack, and the control panel mounting rack is mounted on the middle part of the hanging basket framework, and the control panel is mounted on the control panel mounting rack;

[0013] The hanging basket framework is composed of four hanging basket main chords, a hanging basket cross bar, a hanging basket vertical bar, a pattern plate and a hanging basket diagonal bar. The four hanging basket main chords are located at four corners respectively, the hanging basket cross bar is connected between the bottom opposite hanging basket main chords, the hanging basket vertical bar and the hanging basket diagonal bar are mounted between the upper and lower opposite hanging basket main chords on the two sides, the pattern plate is mounted in the space surrounded by the hanging basket main chords, and the pattern plate is connected to the bottom hanging basket cross bar through the hanging basket diagonal bar.

[0014] The utility model discloses the beneficial effects of:

[0015] 1. Provide convenient and guarantee the operation safety for the bridge inspection and maintenance after the high -speed railway is opened to traffic.

[0016] 2. Save the inspection and maintenance cost, and if the river area adopts the mechanical property such as leasing hoist, ship crane to carry out bridge inspection and maintenance operation in the later operation stage, the long -term investment cost is larger, cannot immediately overhaul when meeting the emergency, and cannot eliminate the hidden danger in time.

[0017] 3. The vertical truss in the truss mechanism is provided with a ladder, and the up-and-down channel is installed on the two sides of the truss mechanism, when the inspection vehicle meets the emergency condition, can immediately stop, and the staff can go to the bridge top surface through the ladder and the up-and-down channel, and the safety of the staff is protected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure of the utility model's front view;

[0019] Figure 2 It is the structure of the utility model's left view;

[0020] Figure 3 It is the structure of the utility model's plan view;

[0021] Figure 4 It is Figure 1 The main view of the truss mechanism;

[0022] Figure 5 It is Figure 4 The left view of the truss mechanism;

[0023] Figure 6 It is Figure 4 The plan view of the truss mechanism;

[0024] Figure 7 For Figure 4 Structure diagram of horizontal truss of middle truss mechanism, wherein (a) is front view, (b) is left view, (c) is top view; (d) is sectional view of A-A in (a); (e) is sectional view of B-B in (a);

[0025] Figure 8 For Figure 4 Structure diagram of vertical truss of middle truss mechanism; wherein (a) is front view, (b) is left view, (c) is A-A sectional view of (a), (d) is top view;

[0026] Figure 9 For Figure 1 Structure diagram of up and down passage of middle truss mechanism, wherein (a) is front view, (b) is left view, (c) is top view;

[0027] Figure 10 For structure diagram of sliding end walking mechanism; wherein (a) is front view, (b) is left view, (c) is top view, (d) is shaft side view;

[0028] Figure 11 For structure diagram of fixed end walking mechanism; wherein (a) is front view, (b) is left view;

[0029] Figure 12 For Figure 11 B-B sectional view and shaft side view of (a); wherein (c) is Figure 11 B-B sectional view of (a), (d) is Figure 11 Shaft side view of (a);

[0030] Figure 13 For Figure 11 Top view and A-A sectional view of (a); wherein (e) is Figure 11 Top view of (a), (f) is Figure 11 A-A sectional view of (a);

[0031] Figure 14 For structure diagram of hanging basket mechanism, (a) is front view, (b) is left view, (c) is top view;

[0032] Figure 15 For structure diagram of hanging basket framework, (a) is front view, (b) is left view, (c) is top view, (d) is A-A sectional view of (a), (e) is B-B sectional view of (a);

[0033] Figure 16 Circuit diagram of frequency converter driving part of the utility model;

[0034] Figure 17The utility model discloses a power supply and distribution part circuit diagram.

[0035] Figure 18 The utility model discloses a brake part circuit diagram.

[0036] In the drawing: 1 - truss mechanism, 2 - sliding end walking mechanism, 3 - fixed end walking mechanism, 4 - basket mechanism, 5 - electric control system, 6 - up and down passage, 7 - limit baffle, 8 - walking underframe assembly, 9 - walking platform.

[0037] 101 - horizontal truss main chord, 102 - horizontal truss cross bar, 103 - horizontal truss vertical rod, 104 - horizontal truss diagonal, 105 - connecting flange.

[0038] 110 - ladder, 111 - cage, 112 - vertical truss main chord, 113 - vertical truss cross bar, 114 - vertical truss diagonal.

[0039] 201 - sliding mechanism, 202 - sliding end eccentric connecting seat, 203 - sliding end motor, 204 - sliding end hand brake, 205 - sliding end drive trolley, 206 - sliding end parking mechanism, 207 - sliding end slewing bearing.

[0040] 301 - fixed end connecting seat, 302 - fixed end eccentric connecting seat, 303 - fixed end motor, 304 - fixed end parking mechanism, 305 - fixed end drive trolley, 306 - fixed end slewing bearing.

[0041] 401 - basket framework, 402 - guide wheel, 403 - hoist rack, 404 - control panel mounting bracket, 405 - control panel, 406 - hoist, 407 - safety lock, 408 - travel switch assembly.

[0042] 4011 - basket main chord, 4012 - basket cross bar, 4013 - basket vertical rod, 4014 - pattern plate, 4015 - basket diagonal.

[0043] 601 - flap, 602 - up and down passage body main chord, 603 - up and down passage cross bar, 604 - up and down passage diagonal. DETAILED DESCRIPTION

[0044] In order to make the utility model's purpose, technical scheme and advantage more clear, the technical scheme in the utility model is described clearly and completely below, obviously, the described embodiment is a part embodiment of the utility model, not all embodiments. Based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without making creative labor belong to the scope of the utility model protection.

[0045] As Figures 1-3As shown, this utility model discloses a beam bottom inspection vehicle, comprising a truss mechanism 1, a sliding end traveling mechanism 2, a fixed end traveling mechanism 3, a suspended platform mechanism 4, an electrical control system 5, upper and lower passages 6, limit baffles 7, a traveling base assembly 8, and a traveling platform 9. The truss mechanism 1 has an inverted U-shaped structure. The traveling base assembly 8 and the traveling platform 9 are respectively installed on the top of the left and right ends of the truss mechanism 1. The sliding end traveling mechanism 2 is installed on one side of the traveling base assembly 8, and the fixed end traveling mechanism 3 and the electrical control system 5 are installed on the other side of the traveling base assembly 8. Upper and lower passages 6 are installed on both sides of the traveling platform 9. The suspended platform mechanism 4 is installed inside the U-shaped structure of the truss mechanism 1. Limit baffles 7 are installed on the track of the truss mechanism 1 on which the suspended platform mechanism 4 moves up and down. The electrical control system 5 is connected to the electrical parts of the sliding end traveling mechanism 2, the fixed end traveling mechanism 3, and the suspended platform mechanism 4.

[0046] Guardrails are installed around the walking chassis assembly 8 and the walking platform.

[0047] like Figures 4-8 As shown, the truss mechanism 1 consists of a horizontal truss and a vertical truss. The horizontal truss is installed at the bottom of the two vertical trusses. The horizontal truss consists of a horizontal truss main chord 101, a horizontal truss crossbar 102, a horizontal truss vertical bar 103, a horizontal truss diagonal bar 104, and a connecting flange 105. The horizontal truss main chords 101 are arranged at four opposite corners. Several connecting flanges 105 are installed on the horizontal truss main chords 101. The horizontal truss main chords 101 that are horizontally opposite are connected by horizontal truss crossbars 102. The two ends of the horizontal truss crossbars 102 are connected to the two horizontal truss main chords 101 in the horizontal direction by two connecting flanges 105. The vertically opposite horizontal truss main chords 101 are connected by horizontal truss vertical bars 103. The two ends of the horizontal truss vertical bars 103 are connected to the two vertical horizontal truss main chords 101 in the vertical direction by two connecting flanges. Diagonal bars 104 are installed between the horizontally opposite horizontal truss main chords 101 and the vertically opposite horizontal truss main chords 101. The two ends of the diagonal bars 104 are also fixed to the opposite horizontal truss main chords 104 by two connecting flanges 105. The vertical truss consists of a ladder 110, a protective cage 111, vertical truss main chords 112, vertical truss cross members 113, and vertical truss diagonal members 114. The vertical truss main chords 112 are arranged at four opposite corners. The vertical truss cross members 113 connect the vertical truss main chords 112 sequentially. A ladder 110 is installed inside the vertical truss cross members 113, and a protective cage 111 is installed around the ladder 110. A vertical truss diagonal member 114 is installed between two vertical truss main chords 112 on the same side.

[0048] The horizontal truss and the vertical truss are made of 6061-T6 aluminum alloy, the walking chassis assembly 8 is made of steel structure with Q355B and Q235B, a steel pattern plate is laid on the top layer of the walking chassis assembly 8 to facilitate personnel to pass through and improve the overall stability of the vehicle body. The guardrail is connected with the walking chassis assembly 8 by on-site welding, the height of the guardrail is about 1.2 m, and the safety of the operator when using the inspection vehicle is ensured. Meanwhile, a climbing ladder 110 is arranged in the vertical truss for personnel to go up and down, which is used as a special access channel for the workers to get on and off the inspection vehicle, and when the inspection vehicle has an emergency, the workers can get on the bridge deck through the up-and-down channels 6 on both sides at any time.

[0049] As shown in Figure 9 , the up-and-down channel 6 is composed of a flip plate 601, an up-and-down channel body main chord 602, an up-and-down channel cross bar 603 and an up-and-down channel inclined rod 604. The up-and-down channel body main chord 602 is arranged at four diagonals, the two up-and-down channel main chords 602 on the rear side are connected as a whole by the up-and-down channel cross bar 603, the top of the two up-and-down channel main chords 602 on the left and right sides are connected by the up-and-down channel cross bar, the up-and-down channel inclined rod 604 is also installed between the two up-and-down channel main chords on the rear side and the left and right sides, and the flip plate 601 is also installed in the frame surrounded by the up-and-down channel main chord 602.

[0050] As shown in Figure 10 , the sliding end walking mechanism includes a sliding mechanism 201, a sliding end eccentric connecting seat 202, a sliding end motor 203, a sliding hand brake 204, a sliding drive trolley 205, a sliding parking mechanism 206 and a sliding rotary support 207. The sliding drive trolley 205 is installed on the sliding parking mechanism 206, the sliding drive trolley 205 is driven by the sliding end motor 203, the sliding hand brake 204 is installed at the bottom of the sliding parking mechanism 206, the sliding parking mechanism 7 is installed on the sliding rotary support 207, the sliding rotary support 207 is installed on the sliding eccentric connecting seat 202, and the sliding eccentric connecting seat 202 is installed on the sliding mechanism 201.

[0051] As shown in Figures 11-13 , the fixed end walking mechanism includes a fixed end connecting seat 301, a fixed end eccentric connecting seat 302, a fixed end motor 303, a fixed end parking mechanism 304, a fixed end drive trolley 305 and a fixed end rotary support 306. The fixed end drive trolley 305 is driven by the fixed end motor 303, the fixed end drive trolley 305 is installed on the fixed end parking mechanism 304, a fixed end hand brake is installed at the bottom of the fixed end parking mechanism 304, the fixed end parking mechanism is installed on the fixed end rotary support 306, the fixed end rotary support 306 is installed on the fixed end eccentric connecting seat 302, and the fixed end eccentric connecting seat 302 is installed on the fixed end connecting seat 301.

[0052] The utility model discloses a four sets of driving system, respectively 2 sets of slip end walking mechanism 2 and two sets of fixed end walking mechanism 3. It is arranged on the bridge side track. The utility model discloses motor drive, and the walking is by motor drive gear box work, passes through gear transmission, drives the walking wheel to realize the advance and retreat of bridge inspection car, and the stepless speed regulation of whole car is realized through frequency conversion speed regulation. The motor power is 1 * 0.75KW. The synchronous walking detection device is set up on the driving system, is used for controlling the linear synchronous walking of inspection car, and the speed (V1, V2) and displacement of left and right driving systems are detected through high-precision encoder, when the displacement difference L2 of two sides walking mechanism appears, the speed of left and right walking motors is changed in extremely short time by the mutual cooperation of electric control system and mechanical structure, makes the speed and displacement of two sides driving systems reach the consistency, thereby realizes automatic deviation rectification and left and right synchronous adjustment (closed loop control), avoids the phenomenon of rail clamping of inspection car caused by the accumulated displacement difference of the inconsistent speed of driving system.

[0053] In order to fully guarantee the safety of the car, the inspection car adopts three different forms of braking mode, respectively:

[0054] Car braking:

[0055] ① Motor brake: the driving motor adopts frequency conversion motor, and the brake is integrated in the motor end, which works through the principle of electromagnet, and the motor is automatically braked when power off.

[0056] ② Hand brake: each set of driving system is provided with a hand brake, when the inspection car walks, the hand wheel is rotated, the friction disc is driven by the lead screw, the friction plate is separated from the track, when the inspection car stops, the hand wheel is rotated, the friction disc is pushed by the lead screw, and the friction plate is frictionally braked with the track.

[0057] ③ Parking brake: when the inspection car is not used, the inspection car is connected with the track by the pin shaft.

[0058] As Figure 14 The utility model discloses a hanging basket mechanism, including hanging basket framework 401, guide wheel 402, hoist frame 403, control panel mounting frame 404, control panel 405, hoist 406, safety lock 407 and travel switch assembly 408, the left end and right end of hanging basket framework 401 are installed with guide wheel 402, and the upper portion of guide wheel 402 has hoist frame 403 installed on hanging basket framework 401, hoist frame 403 is installed with hoist 406, safety lock 407 and travel switch assembly 408 on the upper portion, control panel mounting frame 404 is installed in the middle of hanging basket framework 401, and control panel 405 is installed on control panel mounting frame 404.

[0059] As Figure 15As shown, the basket framework 401 is composed of basket main chord 4011, basket cross bar 4012, basket vertical bar 4013, pattern plate 4014 and basket diagonal bar 4015. Four basket main chords 4011 are located at four diagonals respectively, the bottom opposite basket main chords 4011 are connected through the basket cross bar 4012, the upper and lower opposite basket main chords 4011 on both sides are provided with the basket vertical bar 4013 and the basket diagonal bar 4015, and the pattern plate 4011 is installed in the space surrounded by the basket main chord 4011, and the bottom of the pattern plate 4011 is connected to the bottom basket cross bar 4012 through the basket diagonal bar 4015.

[0060] Because the bridge is a variable cross-section, in order to adapt to the inspection of bridges of different heights, the utility model sets a length of the basket for the inspection personnel to carry out maintenance work. The basket is hung on the steel wire rope on the walking platform 9 and moves up and down under the limitation of the guide wheel 402 through the lifting machine 406. The maintenance personnel can operate on the basket or operate on the control panel on the walking chassis assembly 8. In addition to the working steel wire rope, the basket is also provided with a safety rope. When the basket appears one-sided lifting or breaks, the safety lock 407 locks the basket through the safety rope to ensure the safety of the maintenance personnel. The vertical truss is provided with a ladder, and the maintenance personnel can climb to the upper part of the bridge through the ladder.

[0061] The application scenario of the utility model is:

[0062] As shown in the figure, Figures 1-18 The newly-built Hefei to Xinyi railway station front project HXZQ-1 section in Anhui province is located in Si County of Suzhou City and Wuhe County of Bengbu City, the total length of the line is 24.63km, and the starting and ending DK117+850-DK142+480.41. The new Bianhe super-large bridge crosses the new Bianhe and the road on both sides of the river embankment from 34# pier to 47# pier, the intersection angle of the river and the line is 60°, and the hydrological conditions at the bridge site are: design flow Q=1840m / s, V=0.3m / s, the current status of the new Bianhe is a grade VII channel, and is planned to be a grade IV channel, and the embankment level is a grade 4 embankment. 3

[0063] In view of the safety problem of the inspection and maintenance operation of the steel reinforced concrete continuous beam on the new Bianhe after the high-speed rail is put into operation, the beam bottom inspection trolley of the utility model is designed, which provides a safe operation platform and operation space for the inspection and maintenance operation of the bridge.

[0064] ​The utility model discloses an electric control system 5: new build hefei to Xinyi railway project (Anhui section) beam bottom inspection car electric control system adopts generator set power supply, and the inspection car has synchronous straight walking, automatic deviation rectification, linkage / single -action, wind speed protection function, and the whole control system is composed of frequency converter, programmable controller, anemorumbler, limit switch, connecting cable etc., and the electric control system safety device contains electric leakage protector, over -voltage protection switch, overcurrent / overload / overheat protector, wind speed protection, front and back limit position protection etc.

[0065] In order to realize that the inspection car carries out all -round, three -dimensional detection, maintenance work to bridge, new build hefei to Xinyi railway project (Anhui section) beam bottom inspection car is equipped with a set of special electric control system 5 for controlling the inspection car operation, and its electrical control function is as follows:

[0066] (a). Automatic deviation rectification: in the walking process of the inspection car, the control system can automatically adjust the walking error of left and right drive systems in real time according to the data feedback of external sensor, so that the inspection car keeps synchronous straight walking.

[0067] (b). Manual deviation rectification: when the automatic deviation rectification of the inspection car fails and the deviation of left and right drive systems of the inspection car is greater than the set value, the operator can manually adjust the position of left and right drive systems to the same horizontal straight line through the operation panel button, to complete the manual deviation rectification function operation.

[0068] (c). Wind speed protection: when the environmental wind speed of the inspection car is greater than 15.8 m / s within 5 seconds, the inspection car will stop and brake, and only when the environmental wind speed is less than 15.8 m / s, the inspection car can start running again.

[0069] (d). Limit position protection: when the inspection car continues to run without stopping when reaching the end of the track, the inspection car will trigger the front or rear limit switch of the inspection car through the limit limit block arranged at the end of the track, so that the inspection car stops and brakes to avoid safety accidents caused by the continuous forward movement of the inspection car, and the inspection car can only move in the opposite direction after the limit limit switch is triggered.

[0070] (e). Speed regulation: the inspection car drive adopts frequency conversion speed regulation control, and the operator can adjust the walking speed of the inspection car through the control panel potentiometer knob, and the speed regulation range is 0-10 m / min.

[0071] (f). Others: in addition to the above functions, the control system of the inspection car also has the functions of power supply circuit overvoltage / undervoltage / electric leakage / overload protection / motor overcurrent / overload / overheat protection.

[0072] Among them: electric control cabinet panel: the control center of the operation of the inspection car, and the operator can operate the inspection car through the electric control cabinet panel, and can real -time check the state of the inspection car, including:

[0073] Lift indication: the lift platform (suspension basket) starts to work, and the indicator light is on.

[0074] Motor fault: red indicator light, indicating that the motor has a fault when the motor fails.

[0075] Limit indication: red indicator light, indicating that the limit switch is triggered when the vehicle limit switch is triggered.

[0076] Wind speed alarm indication: red indicator light, indicating that the vehicle stops when the environmental wind speed is greater than 15.8 m / s, and the wind speed exceeds the set value.

[0077] Emergency stop: red mushroom head button, which can immediately stop the operation of the inspection vehicle when pressed in emergency, and can be reset by rotating the button arrow direction after pressing.

[0078] System start: green button with light, press the "system start" button, the inspection vehicle control system starts to work, and the indicator light is on. You can operate the inspection vehicle.

[0079] Correct alignment: press and hold this button for 3 seconds to reset the encoder reading to 0. It is used during debugging, and you must ensure that the left and right drives of the inspection vehicle are on the same horizontal line before use.

[0080] Frequency reset: red button with light, indicating that the frequency converter has failed, and the indicator light is on. Press and hold this button to reset the frequency converter fault.

[0081] Light on / off: two-position selector switch, which can turn on and off the inspection vehicle lighting.

[0082] Alarm: the alarm will sound after pressing the "unlock" button, indicating that the inspection vehicle is about to start.

[0083] Speed regulation: speed regulation knob, which can control the speed of the inspection vehicle through the knob. The speed regulation range is 0-10 m / min.

[0084] Forward / stop / back: three-position selector switch, turn to "left" to run only the left drive system of the inspection vehicle; turn to "right" to run only the right drive system of the inspection vehicle; turn to "linkage" to run the left and right drive systems of the inspection vehicle simultaneously.

[0085] Contact locking: press the button, and the buzzer will sound after the operation of the inspection vehicle.

[0086] Walking / lifting / sockets: three-position selector switch, turn to "walking" to switch the inspection vehicle to walking function; turn to "lifting" to switch the inspection vehicle to lifting platform "suspension basket" lifting function; turn to "socket" to switch the inspection vehicle to socket function.

[0087] Touch screen: man-machine interface, through the touch screen, the running state of the inspection vehicle, alarm information, setting parameters can be viewed. The main interface of the touch screen can display the driving motor, frequency converter, limit switch, wind speed, position deviation, alarm information, etc. in real time, and the operating personnel can also switch the speed regulation mode, speed regulation and switch interface in the main interface.

[0088] The operation parameter setting interface is used for setting the operation parameters of the inspection vehicle, such as driving speed limit, full speed, wind speed full speed, wind speed alarm value, etc., and the PID setting interface can be jumped through the interface, the encoder value can be cleared, and the factory setting can be restored. The PID parameter setting interface can set the correction response speed, response time and dead zone range of the inspection vehicle. The touch state screen input and output interface can view the corresponding device state of each input / output point, and the fault point can be quickly found during maintenance, which is convenient for maintenance. The historical alarm interface is used for understanding the faults of the inspection vehicle at what time, which is convenient for maintenance personnel to record and trace.

[0089] The inspection vehicle is provided with a high-performance programmable controller, which is a core operation device in the control system of the inspection vehicle. The controller can process the data information transmitted back by the external sensor in real time and issue instructions to control the operation of the inspection vehicle. The electric control system of the inspection vehicle has three frequency converters, which are core driving devices in the control system of the inspection vehicle. When working, the frequency converter can control the motor speed and torque by changing the motor power frequency, so that the motor runs stably and improves the comfort of the inspection vehicle. The frequency converter also has the protection of motor output side overcurrent, short circuit and overload.

[0090] The working process of the utility model:

[0091] (1) The operation of the inspection vehicle

[0092] (1.1) The running route of the inspection vehicle

[0093] In order to facilitate the operation of the inspection vehicle, the operation panel is provided with "forward / backward", "left / right" control knobs, which can facilitate the operating personnel to efficiently operate the electric control system and control the inspection vehicle to run according to the purpose of the operating personnel.

[0094] "Forward" direction: the direction of the electric control cabinet is the forward direction of the inspection vehicle.

[0095] "Backward" direction: the direction opposite to the electric control cabinet is the backward direction of the inspection vehicle.

[0096] "Left": used when single side driving is used, which is driving to the left side of the electric control cabinet.

[0097] "Right": used when single side driving is used, which is driving to the right side of the electric control cabinet.

[0098] Linkage: The default driving mode, for left and right sides driving at the same time.

[0099] (1.2) Inspection car operation process:

[0100] Enter the inspection car: After wearing the necessary safety equipment, the staff opens the flap door from the upper and lower passage assembly and enters the inspection car through the ladder.

[0101] (1.2.1) Pre-operation structure inspection: After entering the inspection car, the pre-operation structure inspection should be carried out to confirm whether the inspection car body connecting bolts are loose, including the flange plate of the truss system, the vertical truss and the horizontal truss, and the bolt connection between the drive box and the walking chassis. If found loose, it must be tightened immediately. The tools provided with the inspection car can be used, or other appropriate methods can be selected.

[0102] (1.2.2) Check whether the inspection car drive system and the vertical truss connecting pin, lock pin, and split pin are missing or falling off. If missing or falling off, it must be supplemented and installed.

[0103] (1.3) Release the brake

[0104] (1.3.1) Release the parking device

[0105] Before operating the inspection car, all parking devices must be released.

[0106] Operation steps: First, remove the locking half bolt that prevents the pin from rotating, then remove the pin.

[0107] (1.3.2) Release the hand brake device

[0108] Release the hand brake device: Turn the hand wheel, and the friction disc is driven by the screw rod to make the friction plate separate from the rail.

[0109] (1.4) System power on

[0110] The inspection car control system power on is divided into two steps: starting the generator and starting the electric control system.

[0111] Start the generator: When starting, first turn the power switch to "on", then press the "power on" button. At this time, the touch screen is lit, and the generator starting is completed.

[0112] Note: After starting, the operator should check whether the generator oil level is sufficient, and the oil level should not be less than 50%, to avoid stopping the car due to fuel consumption during use.

[0113] Start the electric control system: After the generator is started, the operator opens the control switch from left to right to complete the power on of the electric control cabinet. At this time, the electric control system power on is completed.

[0114] (1.5) Inspection car electrical system inspection

[0115] The pre-operation inspection of the inspection car electrical system is performed, and the inspection car can be operated after confirming that there is no any fault or problem.

[0116] (1.6) System start

[0117] When the system starts, the operator first resets the "emergency stop button", and then presses the "system start" button. The indicator light is always on, and the control system starts. The inspection car can be operated.

[0118] (1.7) Straight walking

[0119] Function selection: Turn the inspection car function switch "walking / lifting / socket" to "walking" gear.

[0120] Walking mode: Turn the inspection car walking function switch "left / linkage / right" to "linkage" gear.

[0121] Unlock: Press the "unlock" button, and the "beeper" will sound, unlocking the system.

[0122] Operation: After the "beeper" sounds, control the inspection car to run forward or backward through the "forward / stop / back" selection switch.

[0123] (1.8) Manual deviation correction

[0124] When the left and right drive systems of the inspection car deviate greatly due to walking deviation, and automatic deviation correction cannot achieve left and right synchronous operation, the operator can manually correct the deviation according to the following steps:

[0125] Function selection: Turn the inspection car function switch "walking / lifting / socket" to "walking" gear.

[0126] Walking mode: Turn the inspection car walking function switch "left / linkage / right" to "left" or "right" gear.

[0127] Unlock: Press the "unlock" button, and the "beeper" will sound, unlocking the system.

[0128] Operation correction: After the "beeper" sounds, control the inspection car to run in the direction of restoring the level of the left and right drive systems through the "forward / stop / back" selection switch.

[0129] Reset: After manually adjusting the left and right drives to level, press the "alignment confirmation" button for 5 seconds, reset the encoder reading, and complete manual correction.

[0130] Note: When the inspection car normally operates to automatically achieve synchronous straight walking correction function, the "manual correction" function is prohibited.

[0131] (1.9) Basket operation

[0132] Function selection: Turn the function selection switch "walk / raise / socket" of the inspection vehicle to the "raise" position.

[0133] Unlock: Press the "unlock" button, and the "beeper" will sound, unlocking the system.

[0134] Basket power on: After the system is unlocked, the "power" indicator light on the basket is always on, indicating that the lifting platform is powered on.

[0135] Basket local inspection: After the basket function is started, the operator needs to check whether the key switch on the basket control box is turned on, whether the emergency stop button is reset, and whether the power indicator light is on. After confirmation, the operator can operate the lifting platform in the following two ways.

[0136] Control box panel operation: After the basket is started, the operator can directly control the "raise / lower" of the basket through the "raise" and "lower" buttons on the control box panel.

[0137] Wireless handle operation: After the lifting platform is started, the operator can use the handle to operate. When using the handle, the operator needs to reset the red "emergency stop" button, and then press the "START Ro" button. Through the "up / down" button, the operator can control the "raise / lower" of the basket.

[0138] (1.10) Socket with point

[0139] Function selection: Turn the function selection switch "walk / raise / socket" of the inspection vehicle to the "socket" position.

[0140] Unlock: Press the "unlock" button, and the "beeper" will sound, unlocking the system.

[0141] (1.11) Walking speed regulation

[0142] Knob speed regulation: During the inspection vehicle's walking or stopping process, the operator can adjust the walking speed of the inspection vehicle through the "speed regulation" potentiometer on the control cabinet panel. The speed regulation range is 0-10 m / min.

[0143] Touch screen speed regulation: During the inspection vehicle's walking or stopping process, the operator can adjust the walking speed of the inspection vehicle through the "speed regulation" window on the touch screen panel. The speed regulation range is 0-10 m / min.

[0144] (1.12) Generator refueling

[0145] System shutdown: Before refueling the generator, the electric control cabinet system needs to be turned off.

[0146] Twist off the oil tank cover: The operator twists off the oil tank cover.

[0147] Add fuel: use funnel to add fuel through the oil filler cap to the generator.

[0148] Note: the generator after each use should be added fuel to ensure more than 85%.

[0149] (1.13) Parking brake

[0150] After the operator uses the inspection vehicle, he needs to park the inspection vehicle at the designated parking point before leaving the inspection vehicle. The parking steps are as follows:

[0151] Turn off the power: press the "emergency stop" button on the electric control cabinet panel, then turn off the electric control cabinet circuit breaker from right to left, then turn the "power" switch of the generator to "off", and then press the "power off" button to complete the power-off operation of the generator.

[0152] Protection: after the electric control system completes the power-off operation, the operator needs to cover the protective cover of the electric control cabinet and the generator and reset it.

[0153] Brake reset: before leaving the inspection vehicle after the power is turned off, the operator should install 4 sets of handbrake actuators and 2 sets of registration and brakes before leaving the inspection vehicle.

[0154] Reset the power: when the operator leaves the inspection vehicle, he needs to connect the dehumidifier power cord in the electric control cabinet to the bridge charging box.

[0155] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A girder bottom inspection car characterized by The utility model relates to a kind of walking mechanism of crane, including truss mechanism, sliding end walking mechanism, fixed end walking mechanism, hanging basket mechanism, electric control system, up and down passageway, limiting baffle, walking chassis assembly and walking platform, truss mechanism is inverted U type structure, walking chassis assembly and walking platform are separately installed in the left and right top of truss mechanism, sliding end walking mechanism is installed on one walking chassis assembly, fixed end walking mechanism and electric control system are installed on the other walking chassis assembly, up and down passageway is installed on the walking platform of both sides, limiting baffle is installed on the track of truss mechanism in hanging basket mechanism up and down operation, electric control system is connected with the electrical part of sliding end walking mechanism, fixed end walking mechanism and hanging basket mechanism respectively.

2. The girder bottom inspection car of claim 1, wherein, Guardrail is installed around walking chassis assembly and walking platform.

3. The girder bottom inspection car of claim 1, wherein, Truss mechanism is composed of horizontal truss and vertical truss, horizontal truss is installed at the bottom of two vertical trusses, wherein horizontal truss is composed of horizontal truss main chord, horizontal truss crossbar, horizontal truss vertical rod, horizontal truss diagonal and connecting flange, horizontal truss main chord is arranged at four corners, horizontal truss crossbar is connected to two horizontal truss main chords in horizontal direction through two connecting flanges at both ends, horizontal truss vertical rod is connected to two horizontal truss main chords in vertical direction through two connecting flanges at both ends, diagonal is installed between horizontally opposite horizontal truss main chords and vertically opposite horizontal truss main chords, diagonal is also fixed to opposite horizontal truss main chords through two connecting flanges at both ends; Vertical truss is composed of ladder, cage, vertical truss main chord, vertical truss crossbar and vertical truss diagonal, vertical truss main chord is arranged at four corners, vertical truss crossbar sequentially connects vertical truss main chord, ladder is installed inside vertical truss crossbar, cage is installed around ladder, vertical truss diagonal is installed between two vertical truss main chords on the same side.

4. The girder bottom inspection car of claim 1, wherein, Up and down passageway is composed of flap, up and down passageway body main chord, up and down passageway crossbar and up and down passageway diagonal, up and down passageway body main chord is arranged at four corners, two up and down passageway main chords at back side are connected as a whole through up and down passageway crossbar, two up and down passageway main chords at left side and right side are connected through up and down passageway crossbar at top, up and down passageway diagonal is also installed between two up and down passageway main chords at back side and left and right sides, flap is also installed in the frame surrounded by up and down passageway main chord.

5. The girder bottom inspection car of claim 1, wherein, Sliding end walking mechanism includes sliding mechanism, sliding end eccentric connecting seat, sliding end motor, sliding hand brake, sliding drive trolley, sliding parking mechanism and sliding slewing bearing, sliding drive trolley is installed on sliding parking mechanism, sliding drive trolley is driven by sliding end motor, sliding hand brake is installed at the bottom of sliding parking mechanism, sliding parking mechanism is installed on sliding slewing bearing, sliding slewing bearing is installed on sliding eccentric connecting seat, sliding eccentric connecting seat is installed on sliding mechanism.

6. The girder bottom inspection car of claim 1, wherein, The fixed end walking mechanism comprises a fixed end connecting seat, a fixed end eccentric connecting seat, a fixed end motor, a fixed end parking mechanism, a fixed end driving trolley and a fixed end slewing bearing, the fixed end driving trolley is driven by the fixed end motor, the fixed end driving trolley is installed on the fixed end parking mechanism, a fixed end manual brake is installed at the bottom of the fixed end parking mechanism, the fixed end parking mechanism is installed on the fixed end slewing bearing, the fixed end slewing bearing is installed on the fixed end eccentric connecting seat, and the fixed end eccentric connecting seat is installed on the fixed end connecting seat.

7. The girder bottom inspection car of claim 1, wherein, The hanging basket mechanism comprises a hanging basket framework, guide wheels, a lifting machine rack, a control panel mounting rack, a control panel, a lifting machine, a safety lock and a travel switch assembly; the left end and the right end of the hanging basket framework are both provided with guide wheels, the lifting machine rack is installed on the hanging basket framework on the upper part of the guide wheels, the lifting machine is installed in the lifting machine rack, the safety lock and the travel switch assembly are installed on the upper part of the lifting machine rack, the control panel mounting rack is installed on the middle part of the hanging basket framework, and the control panel is installed on the control panel mounting rack; The hanging basket framework is composed of a hanging basket main chord, a hanging basket crossbar, a hanging basket vertical rod, a pattern plate and a hanging basket diagonal rod, four hanging basket main chords are located at four corners, the bottom opposite hanging basket main chords are connected through the hanging basket crossbar, the upper and lower opposite hanging basket main chords on both sides are provided with the hanging basket vertical rod and the hanging basket diagonal rod, and the pattern plate is installed in the space surrounded by the hanging basket main chords, and the bottom of the pattern plate is connected to the bottom hanging basket crossbar through the hanging basket diagonal rod.

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