A bridge inspection vehicle device and method for adapting to track installation errors

Abstract

An apparatus and method for a bridge inspection vehicle adaptable to track installation errors, including walking tracks arranged on the left and right sides at the bottom of the bridge, driving trolleys suspended on the walking tracks, a gantry fixedly connected to the lower end of the driving trolleys, the gantry being connected to a vehicle frame, and a track installation error adjustment mechanism provided between the driving trolleys and the gantry. The method for adapting to track installation errors includes releasing the longitudinal bridge rotation angle of the inspection vehicle, providing sufficient lateral stiffness on both sides of the driving wheels of the driving trolleys, releasing the transverse bridge rotation angle of the inspection vehicle, and causing the vehicle frame to slip within a certain range in the transverse bridge direction. The present invention can release the longitudinal bridge and transverse bridge rotation angles of the vehicle frame to the greatest extent, avoid the generation of additional bending moments on the vehicle frame, ensure the structural safety of the vehicle frame. At the same time, the driving wheels of the driving trolleys can always act on the driving tracks, avoiding the phenomenon of the driving wheels becoming disengaged or experiencing unbalanced forces and slipping. Finally, it can prevent the occurrence of rail jamming caused by gauge errors or the non-synchronization of the driving trolleys.

Description

Technical Field

[0001] The present invention relates to the field of bridge inspection and maintenance, and in particular to a bridge inspection vehicle device and method that can adapt to track installation errors. Background Art

[0002] Bridge inspection vehicles are mainly divided into two types: the first is a mobile vehicle chassis inspection vehicle that uses an automobile chassis to travel on the bridge deck and is equipped with an electromechanical device to transport personnel to the inspection position; the second is a special inspection vehicle designed specifically according to the structural form of a specific bridge and installed on a fixed track. The bridge inspection vehicle described in this article is the second type.

[0003] A bridge inspection vehicle is a wheel-rail type mobile trolley that provides a special operation platform for bridge inspection and maintenance personnel. It mainly consists of inspection vehicle tracks, driving trolleys, gantries, and vehicle frames. Its working principle is to suspend the driving trolleys on the walking tracks on both the left and right sides, and the vehicle frame is fixed under the driving trolleys through the gantries. The inspection personnel control the deceleration motor to drive the walking wheels to move forward or backward along the track direction by operating the electric control system to complete the bridge inspection operation. After the inspection vehicle is installed, due to the slope or structural deformation of the track, there are height differences and gauge errors between the two tracks, and the driving trolleys on both sides are asynchronous during the traveling process, the following problems will occur: 1. On the sloped track, the walking wheels on the driving trolleys in the longitudinal direction of the bridge cannot ensure that they always act on the track, and there is a phenomenon of lifting off and slipping; 2. The driving trolleys are rigidly connected to the gantries and vehicle frames. When there is a height difference between the two tracks, it can only be adapted by the elastic deformation of the vehicle frame, which will cause fatigue damage to the vehicle frame under the action of long-term alternating loads; 3. When there is a gauge error or the driving trolleys on the two tracks are asynchronous, the driving trolleys on the inspection vehicle will get stuck on the track or cause serious wear to the track. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a bridge inspection vehicle device and method that can adapt to track installation errors to solve the problems raised in the above technical background.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A bridge inspection vehicle device that can adapt to track installation errors includes walking tracks arranged on the left and right sides at the bottom of the bridge, driving trolleys suspended on the walking tracks. The driving trolleys are provided with walking wheels, and the driving trolleys form a support with the walking tracks through the walking wheels and can roll forward or backward along the walking tracks. A gantry is fixedly connected to the lower end of the driving trolley, the gantry is connected to the vehicle frame, and a track installation error adjustment mechanism is further provided between the driving trolley and the gantry, and a guiding block is provided between the driving trolley and the walking track.

[0007] In the above-mentioned invention content, the track installation error adjustment mechanism includes an upper cross hinge hinged on the driving trolleys on the left and right sides, and the upper cross hinge can swing back and forth along the running direction of the driving trolleys.

[0008] In the above-mentioned invention content, the track installation error adjustment mechanism further includes a lower cross hinge hinged on the right upper cross hinge, and the lower cross hinge can swing back and forth along the direction perpendicular to the running direction of the driving trolleys.

[0009] In the above-mentioned invention content, the track installation error adjustment mechanism further includes a lateral rolling support assembly slidably connected to the left upper cross hinge.

[0010] The lateral rolling support assembly includes rollers, a chute connecting seat, a bearing seat, and a chute provided on the left upper cross hinge. The bearing seat is fixedly installed on the chute connecting seat, and the rollers pass through the chute and are connected to the bearing seat.

[0011] In the above-mentioned invention content, the upper cross hinge and the driving trolley, as well as between the upper cross hinge and the lower cross hinge, are hinged by a pin shaft.

[0012] A method for adapting to gauge error is realized through the following steps:

[0013] S1. When there is a local slope on the running track, by releasing the longitudinal rotation angle of the inspection vehicle, the running wheels on the driving trolleys always act on the running track.

[0014] S2. Provide sufficient lateral stiffness on both sides of the running wheels of the driving trolleys to ensure the smooth operation of the driving trolleys along the running track in the longitudinal direction of the bridge.

[0015] S3. When there is a height difference between the left and right running tracks, by releasing the transverse rotation angle of the inspection vehicle, prevent the frame from generating a large additional bending moment.

[0016] S4. When there is an error in the gauge of the running track or the driving trolleys on the left and right sides are not synchronized, by allowing the frame to slip within a certain range in the transverse direction of the bridge, release the lateral extrusion force and prevent the driving trolleys from getting stuck on the track.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1). When the inspection vehicle travels on a sloped track, the upper cross hinge connected to the driving trolley releases the longitudinal rotation angle of the inspection vehicle, ensuring that the running wheels on the driving trolleys always act on the inspection vehicle track, and can avoid the running wheels from becoming disengaged or slipping due to unbalanced forces.

[0019] 2) When the inspection vehicle travels on tracks with a height difference on both sides, the lower cross hinge hinged to the upper cross hinge can release the lateral rotation angle of the inspection vehicle, avoid a large additional bending moment on the vehicle frame, and effectively ensure the structural safety of the vehicle frame.

[0020] 3) When there is a gauge error or the driving trolleys on both sides of the tracks are out of sync, one end of the gantry and the vehicle frame of the inspection vehicle will generate a certain displacement in the transverse direction along the transverse rolling support assembly, avoiding the driving trolleys from jamming due to gauge error and out-of-sync driving trolleys. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 is a front view of the right driving trolley of the present invention;

[0023] Figure 3 is a side view of the right driving trolley of the present invention;

[0024] Figure 4 is a front view of the left driving trolley of the present invention;

[0025] Figure 5 is a side view of the left driving trolley of the present invention.

[0026] In the figure, 1 - driving trolley, 2 - gantry, 3 - upper cross hinge, 4 - lower cross hinge, 5 - pin shaft, 6 - running track, 7 - vehicle frame, 8 - transverse rolling support assembly, 9 - guide block, 10 - running wheel, 8a - roller, 8b - chute, 8c - bearing seat, 8d - chute connecting seat. DETAILED DESCRIPTION OF THE INVENTION

[0027] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0028] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The types, quantities, and proportions of the components in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0029] Embodiment 1:

[0030] A bridge inspection vehicle device adaptable to track installation errors. Please refer to the appendix Figure 1 As shown in the figure, it includes walking tracks 6 arranged on the left and right sides at the bottom of the bridge, a driving trolley 1 suspended on the walking tracks 6. The driving trolley 1 is provided with walking wheels 10. The driving trolley 1 forms a support with the walking tracks 6 through the walking wheels 10 and can roll forward or backward along the walking tracks 6. A gantry 2 is fixedly connected to the lower end of the driving trolley 1. The gantry 2 is connected to a vehicle frame 7. An adjusting mechanism for track installation errors is also provided between the driving trolley 1 and the gantry 2.

[0031] More specifically, please refer to the appendix Figure 2 - appendix Figure 5 As shown in the figure, the track error adjusting mechanism includes upper cross hinges 3 hinged on the driving trolleys 1 on the left and right sides. The upper cross hinges 3 can swing back and forth along the walking direction of the driving trolleys 1. In this embodiment, when the walking tracks 6 have a slope, such as uphill or downhill, the upper cross hinges will swing backward or forward along the walking direction of the driving trolleys 1, so that the resultant force direction of the gravity of the vehicle frame 7 and the supporting force of the walking tracks 6 is consistent with the walking direction of the driving trolley 1, thus ensuring that the walking wheels 10 on the driving trolley 1 always act on the walking tracks 6, preventing the walking wheels 10 of the driving trolley 1 from becoming disengaged or experiencing a slipping phenomenon due to unbalanced force on the walking tracks 6.

[0032] Embodiment 2:

[0033] A bridge inspection vehicle device adaptable to track installation errors. Please refer to the appendix Figure 1 As shown in the figure, it includes walking tracks 6 arranged on the left and right sides at the bottom of the bridge, a driving trolley 1 suspended on the walking tracks 6. The driving trolley 1 is provided with walking wheels 10. The driving trolley 1 forms a support with the walking tracks 6 through the walking wheels 10 and can roll forward or backward along the walking tracks 6. A gantry 2 is fixedly connected to the lower end of the driving trolley 1. The gantry 2 is connected to a vehicle frame 7. An adjusting mechanism for track installation errors is also provided between the driving trolley 1 and the gantry 2.

[0034] The difference between this embodiment and Embodiment 1 is that, please continue to refer to the appendix Figure 2 - appendix Figure 5As shown in the figure, in this embodiment, the track installation error adjustment mechanism further includes a lower cross hinge 4 hinged to the right upper cross hinge 3 and a lateral rolling support assembly 8 slidably connected to the left upper cross hinge 3. The lower cross hinge 4 can swing back and forth perpendicular to the traveling direction of the driving trolley 1. The lateral rolling support assembly 8 includes a roller 8a, a chute connecting seat 8d, a bearing seat 8c, and a chute 8b provided on the left upper cross hinge 3. The bearing seat 8c is fixedly installed on the chute connecting seat 8d. The roller 8a passes through the chute 8b and is connected to the bearing seat 8c. Specifically, during assembly, first place the roller 8a into the chute 8b, then install the bearing seat 8c from both ends of the roller 8a onto the roller 8a, and finally fix the bearing seat 8c to the chute connecting seat 8d with screws. After installation, the upper part of the chute connecting seat 8d is in rolling connection with the chute 8b of the upper cross hinge 3 through the roller 8a, and the lower part of the chute connecting seat 8d is bolted to the gantry 2.

[0035] In this embodiment, when the inspection vehicle travels on the traveling tracks 1 with height differences on both sides, the lower cross hinge 4 hinged to the upper cross hinge 3 can swing back and forth perpendicular to the traveling direction of the driving trolley 1, thereby releasing the transverse rotation angle of the inspection vehicle and avoiding a large additional bending moment on the vehicle frame 7, effectively ensuring the structural safety of the vehicle frame 7. When there is a gauge error or the driving trolleys 1 on the traveling tracks 6 on both sides are asynchronous, since the vehicle frames 7 on the left and right of the inspection vehicle are slidably connected to the chute 8b of the upper cross hinge 3 through the chute connecting seat 8d, the vehicle frame 7 will slide left or right in the chute 8b with the chute connecting seat 8d to generate a certain displacement, thereby avoiding the driving trolley 1 being stuck due to the gauge error and the asynchrony of the driving trolleys 1.

[0036] Embodiment 3:

[0037] A bridge inspection vehicle device adaptable to track installation errors, please refer to the attached Figure 1 As shown in the figure, it includes traveling tracks 6 arranged on the left and right sides at the bottom of the bridge, a driving trolley 1 suspended on the traveling tracks 6. The driving trolley 1 is provided with traveling wheels 10. The driving trolley 1 forms a support with the traveling tracks 6 through the traveling wheels 10 and can roll forward or backward along the traveling tracks 6. The lower end of the driving trolley 1 is fixedly connected to a gantry 2. The gantry 2 is connected to a vehicle frame 7. A track installation error adjustment mechanism is further provided between the driving trolley 1 and the gantry 2.

[0038] In this embodiment, a guide block 9 is provided between the driving trolley 1 and the traveling track 6. The guide block 9 can provide sufficient lateral stiffness for the driving trolley 1, so that the traveling wheels 10 only bear vertical loads, ensuring the smooth operation of the driving trolley 1 along the traveling track 6 in the longitudinal direction of the bridge.

[0039] In the above embodiment, preferably, the upper cross hinge 3 and the driving trolley 1, as well as the upper cross hinge 3 and the lower cross hinge 4, are hinged through a pin shaft 5.

[0040] Example 4:

[0041] In the present invention, a method for adapting to gauge error is also provided. Specifically, it is achieved through the following steps:

[0042] S1. When there is a local slope on the traveling track 6, by releasing the longitudinal bridgewise rotation angle of the inspection vehicle, the traveling wheels 10 on the driving trolley 1 are always in contact with the traveling track 6.

[0043] S2. Provide sufficient lateral stiffness on both sides of the traveling wheels 10 of the driving trolley 1 to ensure that the driving trolley 1 runs smoothly along the traveling track in the longitudinal bridgewise direction.

[0044] S3. When there is a height difference between the left and right traveling tracks 6, by releasing the transverse bridgewise rotation angle of the inspection vehicle, prevent the frame 7 from generating a large additional bending moment.

[0045] S4. When there is a gauge error in the traveling track 6 or the driving trolleys 1 on both sides are out of sync, by allowing the frame 7 to slip within a certain range in the transverse bridgewise direction, release the lateral extrusion force and prevent the driving trolley 1 from getting stuck on the track.

[0046] In this embodiment, when the inspection vehicle travels on a sloped track, by releasing the longitudinal bridgewise rotation angle of the inspection vehicle, ensure that the traveling wheels on the driving trolley are always in contact with the inspection vehicle track, and avoid the traveling wheels from becoming disengaged or experiencing unbalanced forces and slipping.

[0047] When the inspection vehicle travels on a track with a large height difference on both sides, by releasing the transverse bridgewise rotation angle of the inspection vehicle, avoid the frame 7 from generating a large additional bending moment, thereby effectively ensuring the structural safety of the frame 7.

[0048] When there is a gauge error or the driving trolleys on both sides of the track are out of sync, by allowing the frame 7 to move a certain distance within a certain range in the transverse bridgewise direction, avoid the driving trolley 1 from getting stuck due to the gauge error and the out-of-sync of the driving trolley 1.

[0049] Provide sufficient lateral stiffness on both sides of the traveling wheels 10 of the driving trolley 1, so that the traveling wheels 10 only bear vertical loads, and ensure that the driving trolley 1 runs smoothly along the traveling track 6 in the longitudinal bridgewise direction.

[0050] The above-described embodiments only represent the specific implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A bridge inspection vehicle device adaptable to track installation errors, comprising traveling tracks (6) arranged on the left and right sides at the bottom of the bridge, a driving trolley (1) suspended on the traveling tracks (6), traveling wheels (10) provided on the driving trolley (1), the driving trolley (1) forming a support with the traveling tracks (6) through the traveling wheels (10) and being able to roll forward or backward along the traveling tracks (6), a gantry (2) fixedly connected to the lower end of the driving trolley (1), the gantry (2) being connected to a vehicle frame (7), characterized in that, There is also an adjusting mechanism for track installation error between the driving trolley (1) and the gantry (2), and a guiding block (9) is provided between the driving trolley (1) and the traveling track (6); the track installation error adjusting mechanism includes an upper cross hinge (3) hinged on the left and right driving trolleys (1), and the upper cross hinge (3) can swing back and forth along the traveling direction of the driving trolley (1); the track installation error adjusting mechanism also includes a lower cross hinge (4) hinged on the right upper cross hinge (3), and the lower cross hinge (4) can swing back and forth along the direction perpendicular to the traveling direction of the driving trolley (1).

2. The bridge inspection vehicle device for adapting to the installation error of the track according to claim 1, characterized in that, The track installation error adjusting mechanism also includes a lateral rolling support assembly (8) slidably connected to the left upper cross hinge (3).

3. The bridge inspection vehicle device for adapting to track installation errors according to claim 2, characterized in that, The lateral rolling support assembly (8) includes a roller (8a), a chute connecting seat (8d), a bearing seat (8c), and a chute (8b) provided on the left upper cross hinge (3). The bearing seat (8c) is fixedly installed on the chute connecting seat (8d), and the roller (8a) passes through the chute (8b) and is connected to the bearing seat (8c).

4. An inspection vehicle device for bridges adaptable to track installation errors according to claim 1, characterized in that, The upper cross hinge (3) and the driving trolley (1) and between the upper cross hinge (3) and the lower cross hinge (4) are hinged by a pin shaft (5).

5. A method for adapting to track installation errors, using a bridge inspection vehicle device for adapting to track installation errors according to any one of claims 1-4, characterized in that, It is realized by the following step method: S1. When there is a local slope in the traveling track (6), by releasing the corner of the inspection vehicle in the longitudinal direction of the bridge, the traveling wheels (10) on the driving trolley (1) always act on the traveling track (6); S2. Provide sufficient lateral stiffness on both sides of the traveling wheels (10) of the driving trolley (1) to ensure that the driving trolley (1) runs smoothly along the traveling track in the longitudinal direction of the bridge; S3. When there is a height difference between the left and right traveling tracks (6), by releasing the corner of the inspection vehicle in the transverse direction of the bridge, prevent the frame (7) from generating a large additional bending moment; S4. When there is an error in the gauge of the traveling track (6) or the left and right driving trolleys (1) are out of sync, by causing the frame (7) to slip within a certain range in the transverse direction of the bridge, release the lateral extrusion force and prevent the driving trolley (1) from jamming on the track.

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