CN114182631A - Track-distance-variable crawler-type traveling mechanism for bridge maintenance - Google Patents
Track-distance-variable crawler-type traveling mechanism for bridge maintenance Download PDFInfo
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- CN114182631A CN114182631A CN202111603684.0A CN202111603684A CN114182631A CN 114182631 A CN114182631 A CN 114182631A CN 202111603684 A CN202111603684 A CN 202111603684A CN 114182631 A CN114182631 A CN 114182631A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 238000012423 maintenance Methods 0.000 title claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 30
- 238000000429 assembly Methods 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000007689 inspection Methods 0.000 description 31
- 230000033001 locomotion Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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Abstract
The invention relates to the technical field of bridge retrieval equipment, and particularly discloses a track-distance-variable crawler-type traveling mechanism for bridge maintenance, which comprises a frame, traveling crawler assemblies, a driving mechanism and a track, wherein the traveling crawler assemblies are arranged in parallel along the length direction of the frame and are positioned on the outer sides of the frame; the driving mechanism is arranged on the frame. According to the invention, the distance between the walking crawler assembly and the frame is changed, so that the walking crawler assembly and the track are mounted or dismounted, and the use of one vehicle of multiple bridges or multiple bridge sections is realized.
Description
Technical Field
The invention relates to the technical field of bridge maintenance, in particular to a track-pitch-variable crawler-type traveling mechanism for bridge maintenance.
Background
The basic function of the bridge inspection vehicle is to provide an inspection platform for bridge inspection work, and the bridge inspection vehicle can run along a rail of the bridge bottom inspection vehicle to realize the function of full-bridge coverage. The main stream bridge inspection car of trade need lay full length track, and the track cost accounts for than too big, and the construction is wasted time and energy.
The invention patent (CN104343084B) discloses a track-variable crawler-type traveling mechanism steel truss bridge trackless lower chord inspection vehicle for bridge maintenance, which is characterized in that a special traveling track for the inspection vehicle is not required to be laid, and the upper end of a traveling boot is alternately connected with a corresponding T-shaped beam at the bottom of a steel truss beam through respective hooks only by driving a driving gear of a traveling driving mechanism to rotate, so that a traveling support alternately moves relative to the T-shaped beam at the bottom of the steel truss beam, but when the traveling mode is adopted for alternately connecting, the requirement on control operation is extremely high, and the safety is insufficient;
the invention patent (CN105714677A) discloses a trackless bridge inspection vehicle walking device with a track-variable track-distance crawler-type walking mechanism for bridge maintenance, which is characterized in that the inspection vehicle walking device is suitable for an upper-chord inspection vehicle and a lower-chord inspection vehicle, can climb a slope, climb an arc surface, descend a slope, and even vertically climb upwards, tracks are not required to be laid, and the walking mode adopts alternate walking.
The utility model discloses a patent (CN212270675U) discloses "pier bridge inspection dolly is crossed with the rotation of becoming rail gauge crawler-type walking mechanism trackless to bridge maintenance", this patent characteristics are that this pier bridge inspection dolly is crossed in the rotation of trackless need not the full-bridge and sets up the track, only need set up the flying piece that is used for the operation on the bridge, just can satisfy the requirement of inspection dolly full-bridge operation, the demand quantity that can make full-bridge inspection car significantly reduces, the engineering cost is reduced, reduce the unnecessary additional load to the bridge, use extensively on the shorter highway bridge of the outer flange of suspension of bridge broad. Compared with the traditional inspection vehicle, a large amount of rail steel can be saved. However, the disassembly problem of the actual bridge inspection trolley is not considered, the inspection trolley is difficult to disassemble after being installed, particularly after being used for the bridge to pass through, and the inspection trolley is idle outdoors for a long time due to long bridge maintenance time interval, so that the mechanical performance and the safety of the inspection trolley are greatly influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a track-distance-variable crawler-type traveling mechanism for bridge maintenance; through changing walking track subassembly and frame distance, make things convenient for walking track subassembly and track to install or dismantle to realize the use of a car multi-bridge or multi-bridge section.
The technical problem to be solved by the invention is as follows:
a track-distance-variable crawler-type traveling mechanism for bridge maintenance comprises a frame, traveling crawler assemblies, a driving mechanism and a track, wherein the traveling crawler assemblies are arranged in parallel along the length direction of the frame and are positioned on the outer sides of the frame; the driving mechanism is arranged on the frame.
When the device is installed, the walking crawler assemblies are close to the frame through the driving mechanism, the distance between the frame and the walking crawler assemblies is reduced, so that the frame and the walking crawler assemblies can penetrate through the gap between the two groups of rails installed on the bridge along the bridge direction and enter the rails, then the walking crawler assemblies are controlled to move towards one side far away from the frame through the driving mechanism, and then the walking crawler assemblies are installed on the rails through the hoisting device;
when the maintenance equipment is used, the whole maintenance equipment can move at the bottom of the bridge by the walking of the walking crawler assembly along the track;
when the frame is disassembled after use, the frame is lifted by the lifting device, so that the walking crawler assemblies are not abutted to the rails any more, then the driving device controls the walking crawler assemblies to move to one side close to the frame, and the walking crawler assemblies and the frame can penetrate through the gap between the two groups of rails and move to the outer sides of the rails, so that the disassembly of the maintenance vehicle and the rails is realized; the maintenance vehicle does not need to be disassembled, so that the maintenance vehicle can be immediately put into use of other bridge sections and bridges.
In some possible embodiments, the walking track assembly is controlled to be close to or far away from the frame in order to effectively realize the control, so that the maintenance vehicle is more convenient to install and disassemble;
the driving mechanism comprises at least two groups of swinging arm parts which have the same structure and two ends of which are respectively hinged with the walking crawler assembly and the frame, and a linear displacement driving device which is hinged with one group of swinging arm parts and is arranged in the frame.
In some possible embodiments, in order to effectively realize that the swinging arm piece is driven to rotate by the linear motion of the linear displacement driving device, so that the walking track assembly and the frame are close to or far away from each other;
the linear displacement driving device comprises a lead screw arranged along the length direction of the frame, a lead screw driving motor connected with one end of the lead screw, a lead screw nut sleeved outside the lead screw and used in cooperation with the lead screw, a lead screw nut mounting seat used for mounting the lead screw nut, and a connecting rod, one end of which is hinged with the lead screw nut mounting seat and one end of which is hinged with one group of swing arm components;
in order to effectively prevent the screw nut from rotating and advancing along the length direction of the screw rod, the screw nut is fixed on the screw nut mounting seat, and a sliding rail which is in sliding fit with the screw nut mounting seat and is arranged along the length direction of the screw rod is arranged in the frame.
In some of the possible embodiments, the first and second,
the walking crawler assembly comprises two groups of crawlers which are arranged in parallel and positioned on the outer side of the frame and a crawler frame which is arranged corresponding to the crawlers; the swing arm piece includes two sets of symmetrical arrangement and respectively with two sets of track frame articulated swing arm.
In some possible embodiments, the walking track assembly further comprises chain wheels which are arranged at two ends of the track frame along the length direction of the frame and are in transmission fit with the track, and a chain wheel driving motor in transmission connection with one group of chain wheels.
In some possible embodiments, the track frame is provided with a plurality of guide wheels on an outer side thereof in a longitudinal direction thereof, and a plurality of support wheels connected to the track in a driving manner on a top portion thereof in the longitudinal direction thereof.
In some of the possible embodiments, the first and second,
the frame comprises two groups of truss sheets arranged in parallel along the bridge direction, a connecting plate respectively connected with the two groups of truss sheets, a swing arm mounting frame arranged corresponding to the swing arm piece and with one end hinged with the swing arm piece, and a hanging point supporting leg connected with the two groups of truss sheets and positioned at the bottom of the truss sheets; the truss is provided with a through hole for the swing arm piece to pass through.
In some of the possible embodiments, the first and second,
the walking crawler belt assemblies are at least two groups and are arranged along the length direction of the frame; the driving mechanisms and the walking crawler assemblies are arranged in a one-to-one correspondence manner;
in the walking state, a gap exists between two adjacent groups of walking crawler assemblies.
In some possible embodiments, continuous travel can be achieved without laying a full length inspection vehicle track for effective implementation;
the track comprises a plurality of groups of walking hanging points which are arranged along the bridge direction and are in transmission connection with the walking crawler assemblies, and the length of the single group of walking crawler assemblies along the bridge direction is more than twice of the distance between two adjacent groups of walking hanging points arranged along the bridge direction.
In some possible embodiments, for efficient implementation of the mounting and dismounting of the invention; and the lifting device is connected with the lifting point supporting leg and the walking hanging point respectively.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the swinging arm piece is arranged, the walking crawler component is matched with the frame, the walking crawler component is effectively close to or far away from the frame, the distance between the walking crawler component and the frame is changed, and the walking crawler component and the walking hanging point are convenient to mount or dismount, so that the use of one vehicle of multiple bridges or multiple bridge sections is realized.
The invention replaces the track in the prior art by arranging a plurality of groups of walking hanging points at the bottom of the bridge, does not need to lay a full-length inspection vehicle track, and can realize continuous walking of the crawler belt and further realize movement along the bridge direction by intermittent support of the walking hanging points;
the walking mechanism is effectively assembled and disassembled by a deformation principle of the parallelogram structure through a parallelogram structure formed by mutually hinging two groups of swing arms, the caterpillar band and the frame;
the invention effectively realizes more convenient installation and disassembly by arranging the vertical lifting device, the lifting point supporting leg and the walking hanging point.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the carriage and the driving mechanism of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural view of a lead screw, a lead screw nut and a slide rail according to the present invention;
FIG. 5 is a schematic view of the construction of the walking track assembly of the present invention;
FIG. 6 is a schematic structural view of the present invention in a walking state;
FIG. 7 is a schematic structural view of the present invention in a hoisted condition;
FIG. 8 is a schematic view showing the connection relationship between the present invention and a bridge, a traveling hanging point, and a vertical lifting device;
FIG. 9 is a schematic three-dimensional view of the present invention in conjunction with a bridge, a walking hanging point, and a vertical lifting device;
wherein: 1. a frame; 11. a truss sheet; 12. truss connecting plates; 13. a swing arm mounting frame; 14. a motor mounting plate; 15. overhauling the platform connecting seat; 2. a walking track assembly; 21. a crawler belt; 22. a guide cone; 23. a tensioner; 24. a guide wheel; 25. a track frame; 26. a support wheel; 27. a sprocket drive motor; 28. a sprocket; 3. swinging arms; 4. a drive mechanism; 41. a linear displacement drive device; 411. a lead screw; 412. a lead screw nut mounting seat; 413. a lead screw drive motor; 414. a slide rail; 42. a connecting rod; 5. a hoisting point supporting leg; 6. a bridge; 7. a walking hanging point; 8. a vertical lifting device.
Detailed Description
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in detail below.
As shown in fig. 1-9:
a track pitch-variable crawler-type traveling mechanism for bridge maintenance comprises a frame 1, a traveling crawler component 2 which is arranged in parallel along the length direction of the frame 1 and is positioned on the outer side of the frame 1, and a driving mechanism 4 which is connected with the traveling crawler component 2 and is used for controlling the traveling crawler component 2 to be close to or far away from the frame 1; the driving mechanism 4 is arranged on the frame 1.
When the device is installed, the traveling crawler belt assembly 2 is close to the frame 1 through the driving mechanism 4, the distance between the frame and the traveling crawler belt assembly 2 is reduced, so that the frame 1 and the traveling crawler belt assembly 2 can penetrate through a gap between two groups of rails installed on a bridge 6 along the bridge direction and enter the rails, then the traveling crawler belt assembly 2 is controlled to move towards one side far away from the frame 1 through the driving mechanism 4, and then the traveling crawler belt assembly 2 is placed on the rails through the hoisting device;
when the maintenance equipment is used, the whole maintenance equipment can move at the bottom of the bridge 6 by the walking of the walking crawler belt assembly 2 along the track;
when the maintenance vehicle is disassembled after being used, the frame 1 is lifted by the lifting device, so that the walking crawler belt assembly 2 is not abutted to the rails any more, then the driving device controls the walking crawler belt assembly 2 to move to one side close to the frame 1, so that the walking crawler belt assembly 2 and the frame 1 can pass through a gap between the two groups of rails, and the maintenance vehicle is disassembled from the rails; the maintenance vehicle does not need to be disassembled, so that the maintenance vehicle can be immediately put into use in other bridge sections and bridges 6.
In some possible embodiments, the walking track assembly 2 is controlled to be close to or far away from the frame 1 in order to effectively realize the control, so that the maintenance vehicle is more convenient to install and disassemble;
the driving mechanism 4 includes at least two sets of swinging arm members with the same structure and two ends respectively hinged with the walking crawler belt assembly 2 and the frame 1, and a linear displacement driving device 41 hinged with one set of swinging arm members and installed in the frame 1.
The linear displacement driving device 41 is used for driving the swinging arm piece to rotate around a hinge point of the swinging arm piece and the frame 1, so that the walking track assembly 2 is close to or far away from the frame 1;
specifically, the linear displacement driving device 41 may be an electric push rod, an air cylinder, an oil cylinder, a gear rack, or other devices capable of realizing linear motion.
In some possible embodiments, in order to effectively realize that the swinging arm member is rotated by the linear motion of the linear displacement driving device 41, so that the walking track assembly 2 and the frame 1 are close to or far away from each other;
the linear displacement driving device 41 includes a lead screw 411 arranged along the length direction of the frame 1, a lead screw driving motor 413 connected to one end of the lead screw 411, a lead screw nut sleeved outside the lead screw 411 and used in cooperation with the lead screw 411, a lead screw nut mounting base 412 for mounting the lead screw nut, and a connecting rod 42 having one end hinged to the lead screw nut mounting base 412 and hinged to one of the swinging arm members.
Specifically, a motor mounting plate 14 for mounting a lead screw driving motor 413 is arranged in the frame, and bearing seats for supporting the lead screw 411 and enabling the lead screw 411 to rotate are arranged at two ends of the lead screw 411, which are far away from the lead screw driving motor 413;
preferably, a limiting device is disposed on the sliding rail 414 to effectively limit the sliding displacement distance of the lead screw nut mounting seat 412.
Further, in order to effectively prevent the lead screw nut from rotating forwards along the rectangle of the lead screw 411;
a slide rail 414 which is in sliding fit with the lead screw nut mounting seat 412 and is arranged along the length direction of the lead screw 411 is arranged in the frame 1.
When the walking crawler assembly 2 needs to be moved, the lead screw driving motor 413 rotates to drive the lead screw 411 to rotate, so that the lead screw nut and the lead screw nut mounting seat 412 which are matched with the lead screw 411 to move together along the long direction of the lead screw 411, and the connecting rod 42 hinged with the lead screw nut mounting seat 412 also moves to apply an acting force to the swing arm piece, so that one end, far away from the frame 1, of the swing arm piece is close to or far away from the frame 1.
In some possible embodiments, in order to ensure smooth walking;
the walking crawler belt assembly 2 comprises two groups of crawler belts 21 which are arranged in parallel and positioned on the outer side of the frame 1 and crawler belt frames 25 which are arranged corresponding to the crawler belts 21; the swing arm piece includes two sets of swing arms 3 that the symmetry set up and articulated with two sets of track frames 25 respectively.
As shown in fig. 5, one end of each of the two groups of swing arms 3 arranged along the same side of the forward bridge direction is hinged with the track frame 25, and the other end is hinged with the frame 1; so that the frame 1, the crawler frame 25 and the two groups of swing arms 3 form a parallelogram structure; one group of swing arms 3 is hinged with one end of a connecting rod 42, and the other end of the connecting rod 42 is hinged with a screw nut mounting seat 412 on the linear displacement driving device 41;
when the crawler belt assembly 2 is installed, the screw nut mounting seat 412 on the linear displacement driving device 41 moves along the forward bridge direction, and an acting force is applied to the swing arm 3 through the connecting rod 42, so that the swing arm 3 moves towards one side far away from the crawler frame 25 around the hinged point of the swing arm 3 and the crawler frame 25, namely, the included angle A formed between the length direction of the swing arm 3 and the frame 1 along the axial line of the forward bridge direction is increased, and the walking crawler belt assembly 2 moves towards one side far away from the frame 1, so that the walking crawler belt assembly 2 is installed on the track. When the walking crawler belt assembly is disassembled, the walking crawler belt assembly 2 is controlled to move towards one side close to the frame 1, and the lifting device is adopted to lift the walking crawler belt assembly.
In some possible embodiments, the walking track assembly 2 further comprises chain wheels 28 mounted at both ends of the track frame 25 along the length direction of the frame 1 and in driving engagement with the track 21, and a chain wheel driving motor 27 in driving connection with one set of chain wheels 28.
Two sets of sprockets 28 are respectively installed at both ends of the track frame 25 in the bridge direction, and the track 21 is installed on the two sets of sprockets 28 and tensioned by the tensioners 23. The chain wheel driving motor 27 is fixed on the track frame 25 and is in transmission connection with one group of chain wheels 28 to provide walking power for the track 21.
In some possible embodiments, a plurality of guide wheels 24 are provided on the outer side of the track frame 25 in the longitudinal direction thereof, and a plurality of support wheels 26 drivingly connected to the track 21 are provided on the track frame 25 in the longitudinal direction thereof.
The guide wheel 24 provides lateral support for guiding and correcting.
The support wheels 26 provide support for the crawler 21, and damage to the crawler 21 due to self-weight sagging of the crawler 21 and friction of the crawler frame 25 during walking is avoided.
Preferably, the track 21 is provided with a noise reduction plate, so that noise can be effectively reduced during walking, friction force is enhanced, and climbing capacity is enhanced.
The noise reduction material of the noise reduction plate can adopt a rubber plate, a nylon plate, a polyurethane plate and the like, and the installation is realized through vulcanization, bonding, bolting or pouring.
Preferably, the guide cones 22 are respectively arranged at two ends of the track frame 25 along the bridge direction, so that the deviation correction can be effectively guided in the moving direction.
In some of the possible embodiments, the first and second,
the frame 1 comprises two groups of truss sheets 11 arranged in parallel along the bridge direction, truss connecting plates 12 respectively connected with the two groups of truss sheets 11, swing arm mounting frames 13 arranged corresponding to the swing arm pieces and with one ends hinged with the swing arm pieces, and lifting point support legs 5 connected with the two groups of truss sheets 11 and positioned at the bottoms of the truss sheets 11; the truss pieces 11 are provided with through holes for the swing arm pieces to pass through.
Preferably, install in the bottom of frame 1 and overhaul platform connecting seat 15, its mainly used connects and overhauls the platform, and then drives to overhaul the platform and remove along with walking mechanism for overhaul the convenience.
Specifically, one end of each of the two groups of swing arms 3 arranged along the same side in the bridge direction is hinged with the track frame 25, and the other end of each of the two groups of swing arms 3 passes through the truss piece 11 and is hinged with the corresponding swing arm mounting frame 13; so that the frame 1, the crawler frame 25 and the two groups of swing arms 3 form a parallelogram structure; one group of swing arms 3 is hinged to one end of a connecting rod 42, and the other end of the connecting rod 42 is hinged to a lead screw nut mounting base 412 on the linear displacement driving device 41.
In some of the possible embodiments, the first and second,
the walking crawler belt assemblies 2 are at least two groups and are arranged along the length direction of the frame 1; the driving mechanisms 4 are arranged in one-to-one correspondence with the walking crawler assemblies 2;
in the walking state, a gap exists between the front and the back two groups of walking crawler belt assemblies 2 along the same side along the bridge direction.
In walking track subassembly 2, set up 1 group sprocket driving motor 27 and drive sprocket 28 and realize just reversing motion, avoided adopting set up two sets of sprocket driving motor 27 and respectively with two sets of sprocket 28 cooperation use at a set of walking track subassembly 2, asynchronous phenomenon appears, and then make track 21 inside will have great internal force, long-time use causes the condition of damage to track 21 to take place.
In some possible embodiments, continuous travel can be achieved without laying a full length inspection vehicle track for effective implementation;
the track comprises a plurality of groups of walking hanging points 7 which are arranged along the forward bridge direction and are in transmission connection with the walking crawler belt assembly 2; the length of the single-group walking crawler belt assembly 2 along the bridge direction is more than twice of the distance between two adjacent groups of walking hanging points 7 arranged along the bridge direction.
Specifically, the walking hanging points 7 are arranged in two rows at equal intervals along the forward bridge direction, and in order to ensure that the walking crawler belt assembly 2 is contacted with the walking hanging points 7 when walking, the walking surfaces of the walking hanging points 7 are basically located on the same horizontal plane. The walking hanging points 7 can be fixed on the bridge 6 through bolting, welding and other modes.
In some possible embodiments, for efficient implementation of the mounting and dismounting of the invention; and the lifting device also comprises a vertical lifting device 8 which is respectively connected with the lifting point supporting leg 5 and the walking hanging point 7.
Preferably, as shown in fig. 8 and 9, the vertical lifting device 8 includes an outer hook mounting seat and a lifting device, which are arranged at the walking hanging point 7; the vertical lifting device 8 is arranged at the position of a lifting point and is connected with the lifting point supporting leg 5, so that the lifting along the vertical direction is realized, and the installation or the disassembly is realized.
Specifically, the hoisting equipment can be an electric hoist, a winch, a chain block and the like.
When the whole walking mechanism needs to be taken down, the lifting equipment is used for hooking the lifting point supporting legs 5 and lifting the whole body upwards for a small distance to separate the walking crawler assembly 2 from the walking hanging points 7, then the swing arm 3 is pushed by the linear displacement driving device 41 to rotate to enable the walking crawler assembly 2 to be close to the frame 1, and then the whole walking mechanism is put down by the lifting equipment.
In order to reduce the track cost, the walking hanging points 7 are reasonably arranged, the distance between the walking hanging points 7 along the bridge direction is slightly larger, in order to ensure that enough walking hanging points 7 support the walking crawler belt assembly 2 in the walking process, the walking crawler belt assembly 2 needs to be lengthened, if one group of walking crawler belt assemblies 2 is adopted, the crawler belt 21 is difficult to tension, the middle dropping amplitude is larger, and the problem of two-way walking of the walking crawler belt assemblies 2 is solved by adopting at least more than two groups of walking crawler belt assemblies 2.
The track is replaced by the walking hanging points 7, so that the track of the beam bottom inspection vehicle is prevented from being arranged on the whole line, the workload of laying the track is greatly reduced, and the cost is effectively reduced; meanwhile, the integral installation and disassembly of the beam bottom inspection vehicle are facilitated, the transportation and storage of the inspection vehicle are facilitated, and the use of one vehicle of multiple bridges 6 or multiple bridge sections can be realized.
When the inspection vehicle does not need to be overhauled, the whole inspection vehicle can be detached and placed indoors, so that the damage of the inspection vehicle when the inspection vehicle is not used is reduced, and meanwhile, the use of one vehicle of multiple bridges 6 or multiple bridge sections is realized.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (10)
1. A track-distance-variable crawler-type traveling mechanism for bridge maintenance is characterized by comprising a frame, traveling crawler assemblies, a driving mechanism and a track, wherein the traveling crawler assemblies are arranged in parallel along the length direction of the frame and are positioned on the outer sides of the frame; the driving mechanism is arranged on the frame.
2. The track-pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 1, wherein the driving mechanism comprises at least two sets of swinging arm members with the same structure and two ends respectively hinged with the traveling crawler assembly and the frame, and a linear displacement driving device hinged with one set of the swinging arm members and installed in the frame.
3. The track-pitch-variable crawler-type traveling mechanism for bridge maintenance according to claim 2, wherein the linear displacement driving device comprises a lead screw arranged along the length direction of the frame, a lead screw driving motor connected with one end of the lead screw, a lead screw nut sleeved outside the lead screw and used in cooperation with the lead screw, a lead screw nut mounting seat used for mounting the lead screw nut, a connecting rod with one end hinged to the lead screw nut and hinged to one group of swing arm members, and a sliding rail arranged in the frame, in sliding fit with the lead screw nut mounting seat and arranged along the length direction of the lead screw.
4. The track pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 2, wherein the traveling crawler assembly comprises two sets of crawlers which are arranged in parallel and positioned on the outer side of the frame, and crawler frames which are arranged corresponding to the crawlers; the swing arm piece includes two sets of symmetrical arrangement and respectively with two sets of track frame articulated swing arm.
5. The track-pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 4, wherein the traveling crawler assembly further comprises chain wheels which are arranged at two ends of the crawler frame in the length direction of the frame and are in transmission fit with the crawler, and a chain wheel driving motor which is in transmission connection with one group of chain wheels.
6. The track-pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 5, wherein a plurality of guide wheels are arranged on the outer side of the crawler frame along the longitudinal direction thereof, and a plurality of support wheels in transmission connection with the crawler are arranged on the top of the crawler frame along the longitudinal direction thereof.
7. The track-pitch-variable crawler-type traveling mechanism for bridge maintenance according to claim 1, wherein the frame comprises two sets of truss pieces arranged in parallel along the bridge direction, a connecting plate connected with the two sets of truss pieces respectively, a swing arm mounting rack arranged corresponding to the swing arm piece and having one end hinged with the swing arm piece, and lifting point support legs connected with the two sets of truss pieces and located at the bottoms of the truss pieces; the truss is provided with a through hole for the swing arm piece to pass through.
8. The track-pitch-variable crawler-type running mechanism for bridge overhaul according to any one of claims 1 to 7, wherein at least two groups of running crawler assemblies are arranged along the length direction of the frame; the driving mechanisms and the walking crawler assemblies are arranged in a one-to-one correspondence manner;
in a walking state, a gap exists between two adjacent groups of walking crawler assemblies on the same side along the bridge direction.
9. The track-pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 7, wherein the track comprises a plurality of sets of traveling hanging points arranged along the bridge-wise direction and in transmission connection with the traveling crawler assemblies, and the length of a single set of traveling crawler assemblies along the bridge-wise direction is greater than twice the distance between two adjacent sets of traveling hanging points arranged along the bridge-wise direction.
10. The track-pitch-variable crawler-type traveling mechanism for bridge overhaul according to claim 9, further comprising a vertical lifting device connected with the lifting point supporting legs and the traveling hanging points respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111603684.0A CN114182631B (en) | 2021-12-24 | 2021-12-24 | Track-variable crawler-type running mechanism for bridge maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111603684.0A CN114182631B (en) | 2021-12-24 | 2021-12-24 | Track-variable crawler-type running mechanism for bridge maintenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114182631A true CN114182631A (en) | 2022-03-15 |
| CN114182631B CN114182631B (en) | 2024-09-13 |
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| CN202111603684.0A Active CN114182631B (en) | 2021-12-24 | 2021-12-24 | Track-variable crawler-type running mechanism for bridge maintenance |
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| DE102007041415A1 (en) * | 2006-09-05 | 2008-03-06 | Winden- Und Maschinenbau Gressbach Gmbh | Endless track unit for lifting, transporting and positioning loads has a stationary mount or a mount moving on endless track crawlers |
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| CN104343084A (en) * | 2014-11-14 | 2015-02-11 | 武桥重工集团股份有限公司 | Trackless lower chord inspection vehicle for steel truss bridges |
| CN216947858U (en) * | 2021-12-24 | 2022-07-12 | 成都市新筑交通科技有限公司 | Track-distance-variable crawler-type traveling mechanism for bridge maintenance |
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| IT8719183A0 (en) * | 1986-06-30 | 1987-01-28 | Kobe Steel Ltd | METHOD AND SYSTEM FOR PRODUCING AND TENSING A BUNDLE OF PARALLEL METAL WIRE. |
| DE102007041415A1 (en) * | 2006-09-05 | 2008-03-06 | Winden- Und Maschinenbau Gressbach Gmbh | Endless track unit for lifting, transporting and positioning loads has a stationary mount or a mount moving on endless track crawlers |
| KR20100003434A (en) * | 2008-07-01 | 2010-01-11 | 이연철 | Movable carrier for repairing and maintaining of arch type structure |
| KR101425340B1 (en) * | 2014-02-19 | 2014-08-04 | 현대건설주식회사 | Caterpillar, Clamp and Manufacturing Apparatus for Prefabricated Parallel Wire Strand for Suspension Bridge using thereof |
| CN104343084A (en) * | 2014-11-14 | 2015-02-11 | 武桥重工集团股份有限公司 | Trackless lower chord inspection vehicle for steel truss bridges |
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| CN114182631B (en) | 2024-09-13 |
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