An inspection vehicle suspension system

Abstract

The utility model relates to bridge inspection car technical field, aims at solving the problem that the existing inspection car suspension mechanism adopts fixed connection mechanism, cannot adapt to the track height difference and track pitch error, provides an inspection car suspension system, including movable end suspension mechanism and fixed end suspension mechanism, movable end suspension mechanism and fixed end suspension mechanism are suspended on two tracks respectively, movable end suspension mechanism includes drive box one, upper fixed base one and movable end lower connecting seat, and fixed end suspension mechanism includes drive box two, upper fixed base two and fixed end lower connecting seat, drive box is hinged on the corresponding upper fixed base, and drive box can rotate in vertical plane relative to upper fixed base, upper fixed base one is hinged with movable end lower connecting seat, and upper fixed base two and fixed end lower connecting seat are hinged, movable end lower connecting seat is slidably connected with movable end portal frame, and movable end lower connecting seat can move transversely relative to movable end portal frame, and fixed end lower connecting seat is hinged with fixed end portal frame.

Description

Technical Field

[0001] This utility model relates to the field of bridge inspection vehicle technology, and more specifically, to an inspection vehicle suspension system. Background Technology

[0002] A bridge inspection vehicle is a specialized piece of equipment that provides a working platform for the detection and repair of bridge defects. Most bridge beam bottom inspection vehicles currently in widespread use employ a suspended design. This type of inspection vehicle requires a dedicated track to be installed under the beam, and the vehicle runs on the track via a suspension mechanism.

[0003] The suspended inspection vehicle track system is a double-track structure. The track is made up of multiple sections of H-beams of a certain length connected by joint seats. Depending on the bridge cross-section and width, the track gauge is usually set between several meters and tens of meters.

[0004] During track installation, due to construction errors, the track height and gauge often deviate from the design values. These deviations may lead to the following problems:

[0005] 1. Track height difference: If the track height difference is too large, it will make it difficult for the inspection vehicle to move, and the driving wheels will be unevenly stressed, affecting the stability and safety of the vehicle.

[0006] 2. Track gauge error: Excessive track gauge error may cause the drive box to jam with the track, and the suspension mechanism to be subjected to additional bending moment and shear force, which will have an adverse effect on the stability and durability of the entire system.

[0007] Excessive gauge error can cause the drive box to jam with the track, and the suspension mechanism to be subjected to additional bending moment and shear force, among other adverse conditions.

[0008] The existing inspection vehicle suspension mechanisms are mostly fixed connection mechanisms. Excessive track gauge error and track height difference will have many adverse effects on the operation of the inspection vehicle, resulting in problems such as difficulty in walking, uneven force on the walking wheels, jamming of the drive box and the track, and the suspension mechanism bearing additional bending moment and shear force. Utility Model Content

[0009] The present invention aims to provide a suspension system for inspection vehicles to solve the problem that existing inspection vehicle suspension mechanisms, which use fixed connection mechanisms, cannot adapt to track height differences and track gauge errors.

[0010] This utility model is achieved using the following technical solution:

[0011] This utility model provides a suspension system for an inspection vehicle, including a movable end suspension mechanism and a fixed end suspension mechanism, wherein the movable end suspension mechanism and the fixed end suspension mechanism are respectively suspended on two tracks;

[0012] The movable end suspension mechanism includes a drive box one, an upper fixed seat one, and a movable end lower connecting seat; the fixed end suspension mechanism includes a drive box two, an upper fixed seat two, and a fixed end lower connecting seat.

[0013] Two drive boxes are hinged to the upper fixed base, and the drive boxes can rotate relative to the upper fixed base in the vertical plane; two drive boxes are hinged to the upper fixed base, and the drive boxes can rotate relative to the upper fixed base in the vertical plane.

[0014] The first upper fixed seat is hinged to the lower connecting seat of the movable end, and the second upper fixed seat is hinged to the lower connecting seat of the fixed end;

[0015] The lower connecting seat of the movable end is slidably connected to the gantry frame of the movable end, and the lower connecting seat of the movable end can move laterally relative to the gantry frame of the movable end. The lower connecting seat of the fixed end is hinged to the gantry frame of the fixed end.

[0016] As a preferred technical solution:

[0017] The first drive box is hinged to the first upper fixed seat via a first pin, and the second drive box is hinged to the second upper fixed seat via a second pin.

[0018] As a preferred technical solution:

[0019] The upper fixed seat one and the movable end lower connecting seat can rotate relative to each other in the horizontal plane; the upper fixed seat two and the fixed end lower connecting seat can rotate relative to each other in the horizontal plane.

[0020] As a preferred technical solution:

[0021] The movable end lower connecting seat is located below the upper fixed seat one, and the movable end lower connecting seat is connected to the upper fixed seat one through a first rotating shaft; the fixed end lower connecting seat is located below the upper fixed seat two, and the fixed end lower connecting seat is connected to the upper fixed seat two through a second rotating shaft.

[0022] As a preferred technical solution:

[0023] The bottom of the upper fixed seat is connected to a disc, and the top of the lower connecting seat of the movable end is connected to a circular stop. The circular stop and the disc slide together, and the two can rotate relative to each other.

[0024] The bottom of the upper fixed seat is connected to a disc, and the top of the lower fixed end connecting seat is connected to a circular stop. The circular stop and the disc slide together, and the two can rotate relative to each other.

[0025] As a preferred technical solution:

[0026] The circular stop is hung on the disc, and the disc and the circular stop cooperate with each other, allowing them to slide relative to each other in the horizontal plane along the circumference of the disc.

[0027] The second circular stop is hung on the second disc, and the second disc and the second circular stop cooperate with each other, allowing them to slide relative to each other in the horizontal plane along the circumference of the second disc.

[0028] As a preferred technical solution:

[0029] The center of the first disc and the first circular stop are coaxial with the center of the first rotating shaft; the center of the second disc and the second circular stop are coaxial with the center of the second rotating shaft.

[0030] As a preferred technical solution:

[0031] The bottom of the lower connecting seat of the movable end is connected to a sliding mechanism, and the lower connecting seat of the movable end is connected to the gantry frame of the movable end through the sliding mechanism;

[0032] The sliding mechanism includes a first mounting plate connected to the lower connecting seat of the movable end and a sliding wheel mounted on the first mounting plate. The crossbeam flange of the movable end gantry is suspended on the sliding wheel. The sliding wheel rolls in contact with the bottom surface of the upper flange plate of the crossbeam of the movable end gantry. The sliding wheel can roll laterally along the upper flange plate of the crossbeam of the movable end gantry.

[0033] As a preferred technical solution:

[0034] The bottom of the lower connecting seat of the movable end is also connected to a guide mechanism, which cooperates with the web plate of the crossbeam of the movable end gantry.

[0035] The guiding mechanism includes a second mounting plate connected to the lower connecting seat of the movable end and a guide wheel mounted on the second mounting plate. The guide wheel makes rolling contact with the web of the crossbeam of the movable end gantry and is capable of rolling laterally along the web of the crossbeam of the movable end gantry.

[0036] As a preferred technical solution:

[0037] An angle encoder is installed at the bottom of the first and second rotating shafts.

[0038] As a preferred technical solution:

[0039] Both the first and second upper fixed seats are equipped with manual parking devices.

[0040] As a preferred technical solution:

[0041] The lower connecting seat of the fixed end is hinged to the gantry frame of the fixed end via a third pin.

[0042] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0043] 1. In the inspection vehicle suspension system of this utility model, the drive boxes of both the movable end suspension mechanism and the fixed end suspension mechanism are hinged to the upper fixed seat. The two drive boxes can rotate around the upper fixed seat in the vertical plane within a certain range, so that the front and rear drive boxes do not have to be kept on the same horizontal line, thereby adapting to the height difference of the track and avoiding problems such as difficulty in walking and uneven force on the walking wheels of the inspection vehicle.

[0044] 2. The upper fixed seat and the lower connecting seat of the movable end of this utility model can rotate relative to each other in the horizontal plane, and the upper fixed seat and the lower connecting seat of the fixed end can rotate relative to each other in the horizontal plane, thereby releasing small-angle rotation and adapting to changes in track gauge within a certain range.

[0045] 3. The upper fixed seat and the lower connecting seat of this utility model are connected by a rotating shaft. In addition to transmitting tensile force, the rotating shaft also has the function of preventing the inspection vehicle from falling. With this structure, while ensuring the rotational freedom of the movable end suspension mechanism and the fixed end suspension mechanism, sufficient vertical stiffness and strength are provided.

[0046] 4. The upper fixed seat and the lower connecting seat of this utility model are also slidably connected by a disc and a circular stop, which ensures the stable connection of the upper and lower structures of the suspension mechanism and the rotational freedom of the suspension mechanism.

[0047] 5. The lower connecting seat of the movable end of this utility model is connected to the movable end gantry through a sliding mechanism. When the track gauge changes, the sliding mechanism and its upper connecting structure can move laterally within a certain range relative to the movable end gantry, so that the position of the driving box's traveling wheels in the lateral direction can be changed and adjusted, thereby adapting to the track gauge error, avoiding the driving box's traveling wheels from getting stuck with the track, and avoiding the suspension mechanism from bearing additional bending moment and shear force.

[0048] 6. An angle encoder is installed at the bottom of the rotating shaft of this utility model. The angle encoder can monitor the relative rotation angle between the lower connecting seat and the corresponding upper fixed seat. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the suspension system of the inspection vehicle described in this utility model.

[0050] Figure 2 This is a schematic diagram of the installation of the movable end suspension mechanism described in this utility model.

[0051] Figure 3This is a schematic diagram of the installation of the fixed-end suspension mechanism described in this utility model.

[0052] Figure 4 This is a structural schematic diagram of the upper fixed base of this utility model.

[0053] Figure 5 This is a schematic diagram showing the connection between the movable end lower connecting seat, the sliding mechanism, and the guiding mechanism described in this utility model.

[0054] Figure 6 This is a structural schematic diagram of the fixed end lower connecting seat described in this utility model.

[0055] Icons: 1 Drive Box I, 1-1 Walking Wheel I, 1-2 Drive Box Wall Panel I, 1-3 First Pin, 2 Upper Fixed Seat I, 3 Lower Connecting Seat of Movable End, 3-1 First Rotating Shaft, 4 Lower Connecting Seat of Fixed End, 4-1 Second Rotating Shaft, 4-2 Ear Plate, 4-3 Third Pin, 5 Drive Box II, 5-1 Walking Wheel II, 5-2 Drive Box Wall Panel II, 5-3 Second Pin, 6 Upper Fixed Seat II, 7 Angle Encoder, 8-1 Disc I, 8-2 Circular Stop I 8-3 Circular disc II, 8-4 Circular stop II, 9 Fixed end gantry, 10 Sliding mechanism, 10-1 First mounting plate, 10-2 Sliding wheel, 11 Guide mechanism, 11-1 Second mounting plate, 11-2 Guide wheel, 12 Movable end gantry, 12-1 Crossbeam, 13 Steel rail, 14 Manual parking device, 14-1 Handbrake parking device pressure head, 14-2 Turntable, 15 Movable end suspension mechanism, 16 Fixed end suspension mechanism, 17 Bridge beam bottom. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0057] Example 1

[0058] like Figures 1-6 As shown, this embodiment proposes an inspection vehicle suspension system, including a movable end suspension mechanism 15 and a fixed end suspension mechanism 16. The movable end suspension mechanism 15 and the fixed end suspension mechanism 16 are respectively suspended on two tracks, and the movable end suspension mechanism 15 and the fixed end suspension mechanism 16 are arranged opposite to each other.

[0059] In this embodiment, the track is a steel track 13.

[0060] The movable end suspension mechanism 15 includes a drive box 1, an upper fixed seat 2, and a movable end lower connecting seat 3. The drive box 1 is located above the upper fixed seat 2 and is hinged to the upper fixed seat 2. The drive box 1 can rotate relative to the upper fixed seat 2 in a vertical plane.

[0061] In this embodiment, the movable end suspension mechanism 15 includes two drive boxes 1. The drive box wall plate 1-2 of the drive box 1 is equipped with a traveling wheel 1-1. The movable end suspension mechanism 15 is suspended on the steel rail 13 of the bridge beam bottom 17 through the traveling wheel 1-1. The drive box 1 is used to drive the inspection vehicle to travel along the rail system.

[0062] The drive box 1 is hinged to the upper fixed seat 2 via the first pin 1-3, and the drive box 1 can rotate relative to the upper fixed seat 2 within a certain range with the first pin 1-3 as the rotation axis.

[0063] The upper fixed seat 2 has pin holes at both ends, and bushings are installed in the pin holes. The two drive boxes 1 are respectively installed at both ends of the upper fixed seat 2, and the two drive boxes 1 are arranged back and forth along the track direction. The first pin shaft 1-3 passes through the corresponding bushing, so as to realize the hinge connection between the drive box 1 and the upper fixed seat 2.

[0064] Since the two drive boxes 1 can rotate around the upper fixed seat 2 within a certain range, the traveling wheels 1-1 of the two drive boxes 1 do not need to be kept on the same horizontal line, thereby adapting to the height difference of the track and avoiding problems such as difficulty in walking of the inspection vehicle and uneven force on the traveling wheels.

[0065] The movable end lower connecting seat 3 is located below the upper fixed seat 2, and the movable end lower connecting seat 3 is hinged to the upper fixed seat 2. The upper fixed seat 2 and the movable end lower connecting seat 3 can rotate relative to each other in the horizontal plane to release small-angle rotation and adapt to changes in track gauge within a certain range.

[0066] In this embodiment, the upper fixed seat 2 and the lower movable end connecting seat 3 are connected by a first rotating shaft 3-1. In addition to transmitting tension, the first rotating shaft 3-1 also has the function of preventing the inspection vehicle from falling. With this structure, while ensuring the rotational freedom between the upper drive box 1, the upper fixed seat 2 and the lower movable end connecting seat 3 and the movable end gantry 12, sufficient vertical rigidity and strength are also provided.

[0067] Furthermore, a disc 8-1 is fixedly connected to the bottom of the upper fixed seat 2. The center of the disc 8-1 is connected to the upper fixed seat 2 through a connector. There is a gap between the disc 8-1 and the upper fixed seat 2. The connector may be, but is not limited to, a connecting column or other structural component.

[0068] The top of the movable end lower connecting seat 3 is fixedly connected to a circular stop 8-2, the disc 8-1 is placed inside the circular stop 8-2, and the circular stop 8-2 is hung on the disc 8-1.

[0069] The disc 8-1 and the circular stop 8-2 are fitted together, and the two can slide relative to each other in the horizontal plane along the circumference of the disc 8-1.

[0070] The centers of the disk 8-1 and the circular stop 8-2 are coaxial with the center of the first rotating shaft 3-1.

[0071] The circular stop 8-2 includes a disc box body. A ring stop is provided on the top of the disc box body. The outer edge of the ring stop is connected to the inner wall of the disc box body. The disc 8-1 is placed in the disc box body, and the ring stop is hung on the disc 8-1.

[0072] By cooperating with the disc 8-1 and the circular stop 8-2, the lower connecting seat 3 of the movable end can rotate relative to the upper fixed seat 2 in the horizontal plane.

[0073] With the above structure, the upper fixed seat 2 and the lower movable end connecting seat 3 can rotate relative to each other in the horizontal plane, ensuring that the upper drive box 1, upper fixed seat 2 and the lower movable end connecting seat 3 and movable end gantry 12 have a certain degree of rotational freedom, which can adapt to the change of track gauge to a certain extent. By releasing small-angle rotation, the vibration and impact during the operation of the inspection vehicle can be reduced, the overall stability and safety of operation can be improved, and the smooth operation of the inspection vehicle can be guaranteed.

[0074] The fixed end suspension mechanism 16 includes a second drive box 5, a second upper fixed seat 6, and a lower fixed end connecting seat 4. The second drive box 5 has the same structure as the first drive box 1, and the second upper fixed seat 6 has the same structure as the first upper fixed seat 2.

[0075] The second drive box 5 is located above the second upper fixed seat 6, and the second drive box 5 is hinged to the second upper fixed seat 6. The second drive box 5 can rotate relative to the second upper fixed seat 6 in the vertical plane.

[0076] In this embodiment, the fixed end suspension mechanism 16 includes two drive boxes 2 5. The drive box wall plate 2 5-2 of the drive box 2 5 is equipped with a walking wheel 2 5-1. The fixed end suspension mechanism 16 is suspended on the steel rail 13 of the bridge beam bottom 17 through the walking wheel 2 5-1. The drive box 2 5 and the drive box 1 jointly drive the inspection vehicle to move along the track system.

[0077] The drive box 2 5 is hinged to the upper fixed seat 2 6 via the second pin 5-3, and the drive box 2 5 can rotate relative to the upper fixed seat 2 6 within a certain range with the second pin 5-3 as the rotation axis.

[0078] The upper fixed seat 2 6 has pin holes at both ends, and bushings are installed in the pin holes. The two drive boxes 2 5 are respectively installed at both ends of the upper fixed seat 2 6, and the two drive boxes 2 5 are arranged back and forth along the track direction. The first pin shaft 1-3 passes through the corresponding bushing, so as to realize the hinge connection between the drive box 2 5 and the upper fixed seat 2 6.

[0079] Since the two drive boxes 2 5 can rotate around the upper fixed seat 2 6 within a certain range, the traveling wheels 2 5-1 of the two drive boxes 2 5 do not need to be kept on the same horizontal line, thereby adapting to the height difference of the track and avoiding problems such as difficulty in walking of the inspection vehicle and uneven force on the traveling wheels.

[0080] The lower fixed end connecting seat 4 is located below the second upper fixed seat 6, and the lower fixed end connecting seat 4 is hinged to the second upper fixed seat 6. The second upper fixed seat 6 and the lower fixed end connecting seat 4 can rotate relative to each other in the horizontal plane to release small-angle rotation and adapt to changes in track gauge within a certain range.

[0081] The upper fixed seat 6 and the lower fixed end connecting seat 4 are connected by a second rotating shaft 4-1, enabling relative rotation between the upper fixed seat 6 and the lower fixed end connecting seat 4. The function of the second rotating shaft 4-1 is the same as that of the first rotating shaft 3-1, and will not be described again here.

[0082] Furthermore, a disc 8-3 is fixedly connected to the bottom of the upper fixed seat 6 of the fixed end suspension mechanism 16. The center of the disc 8-3 is connected to the upper fixed seat 6 through a connector, and there is a gap between the disc 8-3 and the upper fixed seat 6. The connector may be, but is not limited to, a connecting column or other structural component.

[0083] The top of the fixed end lower connecting seat 4 is fixedly connected to a circular stop 8-4, the disc 8-3 is placed inside the circular stop 8-4, and the circular stop 8-4 is hung on the disc 8-3.

[0084] The second disk 8-3 and the second circular stop 8-4 are engaged, and the two can slide relative to each other in the horizontal plane along the circumference of the second disk 8-3.

[0085] The centers of the second disk 8-3 and the second circular stop 8-4 are coaxial with the center of the second rotating shaft 4-1.

[0086] The circular stop 2 8-4 has the same structure as the circular stop 1 8-2, and will not be described in detail here.

[0087] With the cooperation of the disc 2 8-3 and the circular stop 2 8-4, the fixed end lower connecting seat 4 can rotate in the horizontal plane relative to the upper fixed seat 2 6.

[0088] With the above structure, the upper fixed seat 2 6 and the lower fixed end connecting seat 4 can rotate relative to each other in the horizontal plane, ensuring that the upper drive box 2 5, the upper fixed seat 2 6 and the lower fixed end connecting seat 4 and the fixed end gantry 9 have a certain degree of rotational freedom, which can adapt to the change of track gauge to a certain extent. By releasing small-angle rotation, the vibration and impact during the operation of the inspection vehicle can be reduced, the overall stability and safety of operation can be improved, and the smooth operation of the inspection vehicle can be guaranteed.

[0089] In this embodiment, the lateral translation and vertical rotation between the movable end lower connecting seat 3 and the fixed end lower connecting seat 4 have bending and shear resistance functions.

[0090] The drive boxes of the movable end suspension mechanism 15 and the fixed end suspension mechanism 16 rotate with the upper fixed seat, so that the traveling wheels of the two drive boxes do not have to be kept on the same horizontal line, thereby adapting to the height difference of the track.

[0091] The rotational connection between the upper fixed seat 12 and the lower connecting seat 3 of the movable end, and the rotational connection between the upper fixed seat 26 and the lower connecting seat 4 of the fixed end, enable the movable end suspension mechanism 15 and the fixed end suspension mechanism 16 to have a certain degree of rotational freedom, allowing for angular rotation and adapting to gauge changes to a certain extent.

[0092] The movable end lower connecting seat 3 is slidably connected to the movable end gantry 12, and the movable end lower connecting seat 3 can move laterally relative to the movable end gantry 12, wherein lateral movement refers to the horizontal direction perpendicular to the track direction. The fixed end lower connecting seat 4 is directly connected to the fixed end gantry 9.

[0093] To achieve a sliding connection, a sliding mechanism 10 is connected to the bottom of the lower connecting seat 3 at the movable end, and the lower connecting seat 3 at the movable end is connected to the gantry frame 12 at the movable end through the sliding mechanism 10.

[0094] The sliding mechanism 10 includes a first mounting plate 10-1 connected to the lower connecting seat 3 of the movable end, and a sliding wheel 10-2 mounted on the first mounting plate 10-1. The flange of the crossbeam 12-1 of the movable end gantry 12 is suspended on the sliding wheel 10-2. The sliding wheel 10-2 rolls in contact with the bottom surface of the upper flange plate of the crossbeam 12-1 of the movable end gantry 12. The sliding wheel 10-2 can roll laterally along the upper flange plate of the crossbeam 12-1 of the movable end gantry 12, and relative movement can occur between them. When the track gauge changes, the sliding mechanism 10 and its upper connected structure can move laterally within a certain range relative to the movable end gantry 12, thereby adapting to track gauge errors.

[0095] The sliding mechanism 10 is arranged at both ends of the bottom of the lower connecting seat 3 of the movable end.

[0096] The sliding mechanism 10 enables the lateral movement of the lower connecting seat 3 at the movable end, ensuring the stability of the lateral movement.

[0097] The bottom of the lower connecting seat 3 of the movable end is also connected to a guide mechanism 11. The guide mechanism 11 includes a second mounting plate 11-1 connected to the lower connecting seat 3 of the movable end and a guide wheel 11-2 mounted on the second mounting plate 11-1. The guide wheel 11-2 rolls in contact with the web of the crossbeam 12-1 of the movable end gantry frame 12, and the guide wheel 11-2 can roll laterally along the web of the crossbeam 12-1 of the movable end gantry frame 12. The guide wheel 11-2 guides the lateral movement of the drive box 1 and is located between the sliding wheels 10-2 at both ends.

[0098] Two second mounting plates 11-1 are symmetrically installed on the bottom of the lower connecting seat 3 at the movable end, and a set of guide wheels 11-2 are respectively installed on the two second mounting plates 11-1.

[0099] The fixed end lower connecting seat 4 is connected to the fixed end gantry 9 via a third pin 4-3, the length direction of which is the same as the track direction.

[0100] The lower connecting seat 4 at the fixed end and the gantry frame 9 at the fixed end can rotate relative to each other to release the small-angle offset generated during the operation of the inspection vehicle, ensure the smooth operation of the inspection vehicle, and avoid local stress concentration.

[0101] The two ends of the third pin 4-3 are respectively connected to the ear plate 4-2 of the lower connecting seat 4 of the fixed end, and the third pin 4-3 passes through the pin hole on the gantry frame 9 of the fixed end.

[0102] The movable end suspension mechanism 15 and the fixed end suspension mechanism 16 are respectively suspended on two tracks. The two work together to form a simple support system for the entire inspection vehicle system.

[0103] Because the bottom of the lower connecting seat 3 of the movable end is connected to a sliding mechanism 10, the lateral position of the traveling wheel 1-1 of the drive box 1 can be changed and adjusted to adapt to changes in track gauge. This solves the problem that existing inspection vehicle suspension mechanisms use fixed connection mechanisms, and excessive track gauge errors and track height differences will cause many adverse effects on the operation of the inspection vehicle, leading to problems such as difficulty in walking, uneven force on the traveling wheels, jamming of the drive box and the track, and the suspension mechanism bearing additional bending moment and shear force. This utility model can avoid the traveling wheel of the drive box from jamming with the track and avoid the suspension mechanism bearing additional bending moment and shear force.

[0104] Example 2

[0105] The difference between this embodiment and Embodiment 1 is that:

[0106] Both the first upper fixed seat 2 and the second upper fixed seat 6 are equipped with a manual parking device 14. The manual parking device 14 includes a manual parking device pressure head 14-1 and a turntable 14-2. The turntable 14-2 is connected to the manual parking device pressure head 14-1 through a rotating shaft. The rotating shaft is connected to the first upper fixed seat 2 or the second upper fixed seat 6 through a thread. When the turntable 14-2 is rotated, the rotating shaft drives the manual parking device pressure head 14-1 to move up and down. The manual parking device pressure head 14-1 can contact the rail, and parking is achieved through the friction between the two.

[0107] Example 3

[0108] The difference between this embodiment and Embodiment 1 is that:

[0109] An angle encoder 7 is installed at the bottom of the first rotating shaft 3-1 and the second rotating shaft 4-1. The angle encoder 7 can monitor the relative rotation angle between the movable end lower connecting seat 3, the fixed end lower connecting seat 4 and the corresponding upper fixed seat.

[0110] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A suspension system for an inspection vehicle, characterized in that: It includes a movable-end suspension mechanism and a fixed-end suspension mechanism, which are respectively suspended on two tracks; The movable end suspension mechanism includes a drive box one, an upper fixed seat one, and a movable end lower connecting seat; the fixed end suspension mechanism includes a drive box two, an upper fixed seat two, and a fixed end lower connecting seat. Two drive boxes are hinged to the upper fixed base, and the drive boxes can rotate relative to the upper fixed base in the vertical plane; two drive boxes are hinged to the upper fixed base, and the drive boxes can rotate relative to the upper fixed base in the vertical plane. The first upper fixed seat is hinged to the lower connecting seat of the movable end, and the second upper fixed seat is hinged to the lower connecting seat of the fixed end; The lower connecting seat of the movable end is slidably connected to the gantry frame of the movable end, and the lower connecting seat of the movable end can move laterally relative to the gantry frame of the movable end. The lower connecting seat of the fixed end is hinged to the gantry frame of the fixed end.

2. The inspection vehicle suspension system according to claim 1, characterized in that: The upper fixed seat one and the movable end lower connecting seat can rotate relative to each other in the horizontal plane; the upper fixed seat two and the fixed end lower connecting seat can rotate relative to each other in the horizontal plane.

3. The inspection vehicle suspension system according to claim 2, characterized in that: The movable end lower connecting seat is located below the upper fixed seat one, and the movable end lower connecting seat is connected to the upper fixed seat one through a first rotating shaft; the fixed end lower connecting seat is located below the upper fixed seat two, and the fixed end lower connecting seat is connected to the upper fixed seat two through a second rotating shaft.

4. The inspection vehicle suspension system according to claim 3, characterized in that: The bottom of the upper fixed seat is connected to a disc, and the top of the lower connecting seat of the movable end is connected to a circular stop. The circular stop and the disc slide together, and the two can rotate relative to each other. The bottom of the upper fixed seat is connected to a disc, and the top of the lower fixed end connecting seat is connected to a circular stop. The circular stop and the disc slide together, and the two can rotate relative to each other.

5. The inspection vehicle suspension system according to claim 4, characterized in that: The circular stop is hung on the disc, and the disc and the circular stop cooperate with each other, allowing them to slide relative to each other in the horizontal plane along the circumference of the disc. The second circular stop is hung on the second disc, and the second disc and the second circular stop cooperate with each other, allowing them to slide relative to each other in the horizontal plane along the circumference of the second disc.

6. The inspection vehicle suspension system according to claim 5, characterized in that: The center of the first disc and the first circular stop are coaxial with the center of the first rotating shaft; the center of the second disc and the second circular stop are coaxial with the center of the second rotating shaft.

7. The inspection vehicle suspension system according to claim 1, characterized in that: The bottom of the lower connecting seat of the movable end is connected to a sliding mechanism, and the lower connecting seat of the movable end is connected to the gantry frame of the movable end through the sliding mechanism; The sliding mechanism includes a first mounting plate connected to the lower connecting seat of the movable end and a sliding wheel mounted on the first mounting plate. The crossbeam flange of the movable end gantry is suspended on the sliding wheel. The sliding wheel rolls in contact with the bottom surface of the upper flange plate of the crossbeam of the movable end gantry. The sliding wheel can roll laterally along the upper flange plate of the crossbeam of the movable end gantry.

8. The inspection vehicle suspension system according to claim 1, characterized in that: The bottom of the lower connecting seat of the movable end is also connected to a guide mechanism, which cooperates with the web plate of the crossbeam of the movable end gantry. The guiding mechanism includes a second mounting plate connected to the lower connecting seat of the movable end and a guide wheel mounted on the second mounting plate. The guide wheel makes rolling contact with the web of the crossbeam of the movable end gantry and is capable of rolling laterally along the web of the crossbeam of the movable end gantry.

9. The inspection vehicle suspension system according to claim 3, characterized in that: An angle encoder is installed at the bottom of the first and second rotating shafts.

10. The inspection vehicle suspension system according to any one of claims 1-9, characterized in that: Both the first and second upper fixed seats are equipped with manual parking devices.

Images