CN213448086U - Variable amplitude type rotary pier-passing inspection vehicle - Google Patents

Abstract

The utility model discloses a mound inspection vehicle is crossed in variable width of cloth formula gyration belongs to bridge inspection vehicle technical field, and it is mainly through pin joint movable truss on the main part truss, and sets up the rotation range of bearing structure between with adjustment movable truss and the main part truss to make whole inspection vehicle when crossing the mound, can through the length of adjustment bearing structure, and change the rotation range of the relative main part truss of movable truss, and then reach the effect that changes movable truss height. The utility model discloses except that can be applicable to and solve the elevation that how to make the movable truss and descend to being less than the bottom of a beam elevation to make the whole car can carry out the technical problem that the mound was crossed in the gyration, can also be applicable to and solve bridge additional facilities (like pipe in the water, access road) and invade driving clearance, bridge cross-section and change and lead to the problem that the inspection vehicle inspection scope no longer completely covers the bridge bottom.

Description

Variable amplitude type rotary pier-passing inspection vehicle

Technical Field

The utility model relates to a bridge inspection car technical field particularly, relates to a mound inspection car is crossed in variable width of cloth formula gyration.

Background

In order to ensure the safety of bridges and transportation, large and medium-sized bridges are often equipped with permanent suspension type bridge inspection vehicles so as to regularly carry out preventive inspection and maintenance on the bridges and timely repair the bridges after diseases occur. The traditional bridge inspection vehicle can only run in a bridge span, and when the vehicle runs to a bridge pier or a bridge tower, the vehicle needs to be changed to realize man-machine pier crossing and repeated carrying of operation tools and instruments, so that the labor intensity is high, the operation efficiency is low, and the purchase and maintenance cost of the inspection vehicle is high. Therefore, some technical means for the inspection vehicle to pass through the pier to improve the stroke range of the inspection vehicle gradually appear at present. The technical means can be divided into an end telescopic type, a rotary pier passing type and a separation rotary type according to different specific implementation principles.

For the bridge type with the main beam section of an inverted V-shaped and inverted trapezoidal structure (such as flanges, air nozzles and accessories), the end upturned truss applicable in the traditional mode is limited in elevation at the tilting parts at the two ends of the truss in the design stage because the tilting parts are easy to collide with the beam bottom and the rail in the rotation process when the bridge type truss is combined with the rotation pier passing technology, and the elevation of the tilting parts at the two ends of the truss is not suitable to exceed the elevation of the beam bottom, so that the limitation undoubtedly can cause serious influence on the inspection performance of the inspection vehicle.

Therefore, in the case that the conventional turning scheme of a bridge type inspection vehicle with an inverted-V-shaped or inverted-trapezoid main beam section is limited to turning over the pier, a straight truss is generally used as a base, lifting facilities are arranged at two ends of the straight truss, and the lifting facilities are lowered below the bottom elevation of the beam when the bridge type inspection vehicle turns over the pier. According to the technical scheme, the inspection range of the inspection vehicle can cover the whole bridge bottom, and meanwhile, the pier can be rotated, but the self weight of the cantilever truss is greatly increased, the end bearing capacity is reduced, the platform operation surface is occupied by the cantilever truss, and the defects of poor stability after lifting, high maintenance cost and the like are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mound inspection vehicle is crossed in variable width of cloth formula gyration, when it realized the mound of crossing of gyration, can effectively avoid its truss position and bridge to bump.

The embodiment of the utility model is realized like this:

a variable amplitude rotary pier-passing inspection vehicle comprising:

a main truss;

the movable truss is pivoted on the transverse end part of the main truss and can swing upwards and downwards relative to the main truss;

the pull-bearing structure corresponds to the movable truss and the length of the pull-bearing structure is adjustable; the two ends of the pull-bearing structure are respectively connected with the movable truss and the main truss so as to pull up the movable truss, and the pull-bearing structure can change the rotation amplitude between the movable truss and the main truss by adjusting the length of the pull-bearing structure.

Preferably, the pull-bearing structure is connected to the lower chord of the movable truss, and the connection position of the pull-bearing structure and the lower chord is laterally outside the gravity center of the movable truss.

Preferably, a fulcrum frame is fixedly connected above the main truss, and the main truss is connected with the pull-bearing structure through the fulcrum frame.

Preferably, the connection part of the movable truss and the pull-support structure, the pivoting part of the movable truss and the main truss, and the connection part of the main truss and the pull-support structure are sequentially arranged from the outer side to the inner side along the transverse direction.

Preferably, the tensile support structure mainly comprises a connecting piece and a driving piece which are connected, the driving piece is used for being connected with the fixed truss and adjusting the length of the whole tensile support structure, and the connecting piece is used for being connected with the movable truss.

Preferably, the driving member is a linear telescopic mechanism capable of extending and contracting along the length direction of the tensile structure.

In another embodiment, the driving member is a winding mechanism, and the winding mechanism can wind and unwind the connecting member to adjust the length of the tensile support structure.

Preferably, the anchoring device further comprises an anchoring inhaul cable, one end of the anchoring inhaul cable is connected with the fulcrum frame, the anchoring inhaul cable and the pull-support structure are transversely arranged on two sides of the fulcrum frame, and the other end of the anchoring inhaul cable is connected to the main truss.

It is preferable that the locking device further includes a locking device, the movable truss having an upper limit position and a lower limit position with respect to the main truss, and the movable truss being lockable with respect to the main truss at the upper limit position and the lower limit position by the locking device, respectively.

Preferably, the locking means comprises a removable pin assembly and/or a catch assembly and/or a ratchet mechanism.

Since the technical scheme is used, the beneficial effects of the utility model include:

(1) the utility model discloses mainly through pin joint movable truss on the main part truss, and set up and draw the structure to let whole inspection car when crossing the mound, can draw the length of bearing the structure through the adjustment, and change the rotation range of movable truss relatively fixed truss, and then reach the effect that movable truss becomes the width of cloth. When the whole vehicle normally runs, the whole movable truss is pulled up by the pull-bearing structure, and the inspection range of the whole vehicle can be ensured to cover the lower surface of the girder with the inverted V-shaped and inverted trapezoidal section.

The utility model discloses except that can be applicable to and solve the elevation that how to make the movable truss and descend to being less than the bottom of a beam elevation to make the whole car can carry out the technical problem that the mound was crossed in the gyration, can also be applicable to and solve bridge additional facilities (like pipe in the water, access road) and invade driving clearance, bridge cross-section and change etc. and lead to the problem that the inspection vehicle scope no longer completely covers the bridge lower surface.

(2) For the pull-bearing structure, the function of pulling the movable truss is mainly achieved, and the pull-bearing structure is matched with the main truss to form stable support for the movable truss. And for the rigidity and the stability of guarantee truss structure, the utility model discloses optimize the improvement to the position of the junction of bearing structure and main part truss, activity truss, particularly, the utility model discloses locate the lower chord of activity truss with the junction of activity truss and bearing structure on, simultaneously, set up the fulcrum frame that is used for linking to each other with the bearing structure in main part truss top to make the bearing structure exert pulling force arm of force size as big as possible to the activity truss, in order to ensure that the activity truss can be in comparatively stable state in crossing pier position, operating position homoenergetic.

(3) The utility model discloses still cooperate and set up and draw the corresponding anchor cable of structure for form to draw from the anchor system to one side, reduce the maximum bending moment of truss by a wide margin, reduce stress and amount of deflection, reduce the vibration that live load arouses, increase available load.

(4) The utility model discloses in, have two limit position between activity truss and the main part truss, limit position and lower limit position go up promptly. When the movable truss is at the upper limit position, the whole vehicle is in a working posture, and when the movable truss is at the lower limit position, the whole vehicle is in a pier-passing posture. No matter in last limiting position, still at lower limiting position, all can utilize locking device to lock between activity truss and the main part truss to effectively ensure the stability of inspection car.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts.

Fig. 1 is a schematic cross-sectional view of a finished axle when embodiment 1 of the present invention is in an upper limit position;

fig. 2 is a schematic cross-sectional view of the entire axle when embodiment 1 of the present invention is in the lower limit position;

fig. 3 is a schematic structural view of the movable truss, the main truss and the tensile support structure when the embodiment 1 of the present invention is in the upper limit position;

fig. 4 is a schematic structural view of the movable truss, the main truss and the tension support structure when the embodiment 1 of the present invention is in the lower limit position;

fig. 5 and 6 are schematic diagrams of the rotary pier of embodiment 1 provided by the invention.

[ description of specific symbols ]:

1-a walking driving device, 2-a sliding end revolving frame, 2.1-a revolving support, 2.2-a revolving motor, 3-a main truss, 3.1-a fulcrum frame, 4-a movable truss, 5-an anchoring cable, 6-a bearing structure, 6.1-a hydraulic oil cylinder, 6.2-a cable, 7-a non-sliding revolving frame, 8-a main beam, 9-a downpipe, 10-a pin joint pin shaft, 11-a detachable pin shaft component and 12-a locking component;

20-longitudinal rail, 21-transverse rail, 22-rotary rail and 23-pier-passing longitudinal rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1, 2, 3 and 4, the present embodiment 1 provides a variable-amplitude revolving pier-passing inspection vehicle, which includes:

a main truss 3;

a movable truss 4, wherein the movable truss 4 is pivoted on the transverse end of the main truss 3 and can swing upwards and downwards relative to the main truss 3 (the transverse direction is the transverse bridge direction and is consistent with the length direction of the normally running inspection vehicle);

a pull-support structure 6 corresponding to the movable truss 4 and having an adjustable length; the two ends of the pull-support structure 6 are respectively connected with the movable truss 4 and the main truss 3 so as to pull up the movable truss 4, and the pull-support structure can change the rotation amplitude between the movable truss 4 and the main truss 3 by adjusting the length of the pull-support structure.

The concrete application object of this embodiment 1 is a bridge type in which the main beam 8 has an inverted trapezoidal cross section, so that the number of components of the movable truss 4 and the tensile structure 6 is two. Two groups of movable trusses 4 are respectively pivoted on two ends of the main truss 3 in the transverse direction. In other embodiments, only one movable truss 4 is connected to the main truss 3, and the main truss is suitable for an inspection vehicle which only performs an inspection function on one side of the main girder 3 in the transverse bridge direction.

Wherein, two groups of walking driving devices 1 are arranged below the bottom of the bridge beam in sequence along the transverse direction, and the walking wheels of the two groups of walking driving devices 1 are embedded on the H-shaped steel (or I-shaped steel and channel steel) track on the bottom surface of the main beam 8. The traveling wheel driving devices on the two sides are connected with the main truss 3 through the rotary frame arranged below the traveling wheel driving devices, so that the whole vehicle is hung below the bridge.

When the whole vehicle normally runs, the pulling and bearing structure 6 provides pulling force to pull up the whole movable truss 4 and change the rotation amplitude between the movable truss and the main truss 3, so that the movable truss 4 is in an upturned mode relative to the main truss 3, and at the moment, the inspection range of the whole vehicle can be suitable for a bridge type with a main beam 8 cross section in an inverted V-shaped and inverted trapezoid structure.

When the bridge auxiliary facilities (such as the downpipe 9 and the access way) invade the driving clearance, the cross section of the bridge changes and the whole vehicle needs to rotate to pass through the pier, the length of the pulling and bearing structure 6 can be enlarged, the rotation amplitude of the movable truss 4 relative to the main truss 3 is changed, the height control point of the movable truss 4 is changed, and interference is avoided.

In order to apply a pulling force to the movable truss 4, which makes the movable truss 4 have a tendency of rotating upward relative to the main truss 3, and cooperate with the main truss 3 to form a stable support for the movable truss 4, and to raise the moment arm of the pulling force, in this embodiment 1, the pulling and supporting structure 6 is connected to the lower chord of the movable truss 4, the connection point between the pulling and supporting structure 6 and the lower chord is located laterally outside the center of gravity of the movable truss 4, meanwhile, two fulcrum frames 3.1 laterally disposed on both sides are fixedly connected above the main truss 3, and the main truss 3 is connected to the pulling and supporting structure 6 on the corresponding side through the fulcrum frame 3.1 on the corresponding side.

It can be understood that: when the number of components of the movable truss 4 is single, the fulcrum frame 3.1 may be provided to be single.

The connecting part of the guy cable 6.1 is arranged on the lower chord of the movable truss 4 and the fulcrum frame 3.1, so that the force arm of the pulling force applied to the movable truss 4 by the pulling and bearing structure 6 can be as large as possible, and the movable truss 4 can be ensured to be in a relatively stable state at the pier passing position and the working position.

As a preferred embodiment, in this embodiment 1, a connection portion between the movable truss 4 and the tension structure 6, a pivot connection portion between the movable truss 4 and the main truss 3, and a connection portion between the main truss 3 and the tension structure 6 are sequentially disposed from the outer side to the inner side in the transverse direction. The inner side means a side close to the middle of the main truss 3, and the outer side means a side far from the middle of the main truss 3.

In this embodiment 1, the above-mentioned tension-bearing structure is mainly composed of a connecting member and a driving member, which are connected with each other, the driving member is used for connecting with the fixed truss 3 and adjusting the length of the whole tension-bearing structure 6, and the connecting member is used for connecting with the movable truss 4.

Specifically, in this embodiment 1, the driving element is a hydraulic cylinder 6.1, which achieves the function of adjusting the length of the tensile support structure 6 by its own lockable extension and retraction, and may be replaced by other linear extension and retraction mechanisms, such as an electric push rod, a screw nut pair, and the like, which can extend and retract along the length direction of the tensile support structure 6. As for the connecting piece, in this embodiment 1, it is specifically the pulling cable 6.2, and the implementer can also use a steel pulling rod or a chain instead.

In another embodiment, the driving member is a winding mechanism such as a winch or an electric winch that can wind and reel the link to adjust the length of the entire tensile support structure 6, and the winding mechanism adjusts the length of the entire tensile support structure 6 by winding the link. The winch or the electric winch is fixedly connected on the main truss 3, and when the winding mechanism is used as a driving piece, the connecting piece can be a chain or a guy cable 6.2.

In the embodiment 1, the pull-support structure 6 formed by the pull cable 6.2 and the hydraulic oil cylinder 6.1 is matched with the concrete connection relationship between the main truss 3 and the movable truss 4, the end of the pull cable 6.2 is pivoted with the movable truss 4, the pivot frame 3.1 on the main truss 3 is pivoted with one end of the hydraulic oil cylinder 6.1, and one end of the hydraulic oil cylinder 6.1 is pivoted with the pull cable 6.2.

More specifically, in this embodiment 1, the pull-support structure 6 is disposed on the front side or the rear side (the longitudinal direction is the longitudinal direction of the bridge) of the main truss 3 and the movable truss 4, so that the pull-support structure 6 avoids a space for the relative rotation between the movable truss 4 and the main truss 3, and avoids the interference. The operator can arrange the extending longitudinal beams or the brackets on the lower chord of the movable truss 4 and the fulcrum frame 3.1 to extend the connecting position of the tensile structure 6 to the outside of the vertical plane of the movable truss 4 and the main truss 3.

More specifically, in this embodiment 1, the support frame further includes two anchoring cables 5 disposed between the two side support frames 3.1 and disposed on two sides along the transverse direction, and two ends of the anchoring cables 5 are respectively connected to the support frames 3.1 and the fixed truss 4 on the corresponding sides.

The anchoring cables 5 and 6.2 are respectively arranged on two sides of the fulcrum frame 3.1, so that a self-anchoring cable-stayed system can be formed, the maximum bending moment of the truss is greatly reduced, the stress and the deflection are reduced, the vibration caused by live load is reduced, and the available load is increased.

In addition, the hydraulic cylinder 6.1 as the driving member in the embodiment 1 has self-locking property, but the hydraulic cylinder 6.1 is not good for self-locking for a long time, and the same is true for other linear telescopic mechanisms such as an electric push rod, a screw nut pair and the like.

Therefore, in this embodiment 1, a locking device is further included, the movable truss 4 has an upper limit position (the whole vehicle is in a working posture) and a lower limit position (the whole vehicle is in a pier passing posture) relative to the main truss 3, and the movable truss 4 can be locked relative to the main truss 3 at the upper limit position and the lower limit position respectively through the locking device to form redundant locking in cooperation with self-locking of the driving member, so that structural reliability and safety are improved.

Specifically, in the present embodiment 1, the number of the locking devices is two, and the two locking devices are used for locking the upper limit position and the lower limit position, respectively.

Referring to fig. 3, the first locking device is a detachable pin assembly 11, and specifically includes a pin body and two pin shaft seats respectively fixed to the movable truss 4 and the main truss 3, and is used for limiting and locking an upper limit position, i.e., a working posture of the entire vehicle.

When the whole vehicle is in a working posture, an operator can enable the pin shaft body to penetrate into the two pin shaft seats simultaneously, at the moment, the movable truss 4 and the main truss 3 are pivoted by the pin shaft 10, and after the pin shaft body is connected with the two pin shaft seats, the movable truss 4 and the main truss 3 are limited and are in a locking state.

Referring to fig. 4, the second locking device is a latch assembly 12 for limiting the lower limit position, i.e., the attitude of the entire vehicle passing through the pier. The truss comprises a sliding groove with at least one closed end and a sliding block in sliding fit with the sliding groove, wherein the sliding block is fixedly connected with a main truss 3, and the sliding groove is pivoted with a movable truss 4. When the whole vehicle is in the pier passing posture, the sliding block automatically abuts against the closed end of the sliding groove, and the movable truss 4 is limited to continue rotating relative to the main truss 3.

In other embodiments, the locking device is a ratchet mechanism.

The locking device and the tension structure 6 work together to provide a double guarantee for locking between the movable truss 4 and the main truss 3 and improve the rigidity and dynamic stability of the truss platform.

More specifically, referring to fig. 5, regarding the process of the inspection vehicle rotating over the pier, in this embodiment 1, the inspection vehicle travels along the longitudinal rail 20 to the rotating rail 22, the rotating motor 2.2 on the rotating frame operates, and the rotating support 2.1 with teeth rotates, so that the upper traveling driving device 1 and the rotating rail 22 rotate together relative to the inspection vehicle, thereby changing the traveling direction of the traveling driving device 1, and the inspection vehicle can travel to the transverse rail 21.

For a specific rotation process, please refer to fig. 6, wherein A, B, C, D, E and F are marked as schematic full vehicle position marks. The position A is when the whole vehicle runs on two longitudinal rails 20 before turning and changing rails; the position B is when the whole vehicle turns and changes the orbit at the turning orbit 22; after the first orbital transfer is carried out at the position C, the revolving frames at the two sides travel along the transverse track 21 and carry out the second orbital transfer after reaching the designated position; and the place D is that the non-slip slewing frame 7 runs along the forward bridge direction and passes through the pier longitudinal rail 23, the slip end slewing frame 2 runs along the transverse rail 21 until the position D is in the place F, namely the slewing frames on the two sides are both positioned on the pier longitudinal rail 23, and after the travelling pier, the reversing execution is carried out according to the sequence, so that the pier passing can be completed, and the one-vehicle multi-span operation is realized.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a pier inspection vehicle is crossed in variable width formula gyration which characterized in that includes:

a main truss;

the movable truss is pivoted on the transverse end part of the main truss and can swing upwards and downwards relative to the main truss;

the pull-bearing structure corresponds to the movable truss and the length of the pull-bearing structure is adjustable; the two ends of the pull-bearing structure are respectively connected with the movable truss and the main truss so as to pull up the movable truss, and the pull-bearing structure can change the rotation amplitude between the movable truss and the main truss by adjusting the length of the pull-bearing structure.

2. The variable amplitude rotary pier-passing inspection vehicle of claim 1, wherein the bearing structure is attached to the lower chord of the movable truss at a location laterally outboard of the center of gravity of the movable truss.

3. The variable amplitude rotary pier-passing inspection vehicle of claim 2, wherein a pivot bracket is fixedly connected above the main truss, and the main truss is connected with the tensile structure through the pivot bracket.

4. The variable amplitude rotary pier-passing inspection vehicle of claim 2, wherein the connection between the movable truss and the tension structure, the pivot joint between the movable truss and the main truss, and the connection between the main truss and the tension structure are arranged in sequence from the outer side to the inner side in the transverse direction.

5. The variable amplitude rotary pier-passing inspection vehicle of claim 3, wherein the tensile structure is comprised of connecting members and drive members, the drive members being adapted to connect to the fixed truss and adjust the length of the overall tensile structure, the connecting members being adapted to connect to the movable truss.

6. The variable amplitude rotary pier-passing inspection vehicle of claim 5, wherein the drive member is a linear telescoping mechanism capable of telescoping along the length of the tensile structure.

7. The variable amplitude rotary pier-passing inspection vehicle of claim 5, wherein the drive member is a spooling mechanism capable of spooling the connecting member to adjust the length of the tensile structure.

8. The variable amplitude rotary pier-passing inspection vehicle of claim 5, further comprising an anchor cable having one end connected to the fulcrum frame, wherein the anchor cable and the bearing structure are laterally disposed on both sides of the fulcrum frame, and the other end of the anchor cable is connected to the main truss.

9. The variable amplitude rotary pier-passing inspection vehicle of claim 1, further comprising a locking device, wherein the movable truss has an upper limit position and a lower limit position relative to the main truss, and wherein the movable truss is lockable relative to the main truss in the upper limit position and the lower limit position by the locking device, respectively.

10. The variable amplitude swing pier-passing inspection vehicle of claim 9, wherein the locking means comprises a removable pin assembly and/or a latch assembly and/or a ratchet mechanism.

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