CN108103933B - Quick unhooking structure of bridge inspection vehicle operation arm - Google Patents
Quick unhooking structure of bridge inspection vehicle operation arm Download PDFInfo
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- CN108103933B CN108103933B CN201810109598.6A CN201810109598A CN108103933B CN 108103933 B CN108103933 B CN 108103933B CN 201810109598 A CN201810109598 A CN 201810109598A CN 108103933 B CN108103933 B CN 108103933B
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- bridge inspection
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- 238000007689 inspection Methods 0.000 title claims abstract description 45
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a quick unhooking structure of a bridge inspection vehicle working arm, which is characterized by comprising a large arm horizontally arranged on a vehicle body, a vertical arm at one end of the large arm far away from the vehicle body and a working arm at one end of the vertical arm far away from the large arm, wherein the large arm comprises a main arm connected with the vehicle body and a connecting arm connected with the vertical arm, the main arm is detachably connected with the connecting arm, and a hanging device for hanging the vertical arm is arranged on the main arm. The main arm and the connecting arm can be quickly detached, so that the vehicle body is separated from the working arm, and traffic jam caused by stopping of the bridge inspection vehicle due to the fact that the working arm is clamped is avoided.
Description
Technical Field
The invention relates to a bridge inspection vehicle, in particular to a quick unhooking structure of a bridge inspection vehicle working arm.
Background
The inspection (daily inspection, periodic inspection and abnormal period inspection) of the bridge is a primary task of bridge operation, maintenance and management, and as a plurality of parts of the bridge are not easy to approach, the inspection work is completed by means of a working platform provided by bridge inspection equipment, so that a bridge inspection vehicle special for bridge inspection appears, and the bridge inspection vehicle is a truss system which is arranged on a frame and can be unfolded and folded. During inspection, the truss system on the vehicle is controlled to be unfolded to move the working platform to the position under the bridge, and workers inspect the bridge on the working platform.
FIG. 1 is a schematic diagram of a conventional bridge inspection vehicle;
as shown in fig. 1, a conventional bridge inspection vehicle comprises a vehicle body 1, a big arm 2 arranged on the vehicle body 1, a vertical wall 3 arranged at the outer end of the big arm 2, and a working arm 4 arranged at the lower end of the vertical arm 3, wherein the working arm 4 can rotate, and a worker can detect a bridge on the working arm 4.
In order not to influence normal traffic of vehicles on roads and railways in daytime, the conventional bridge inspection vehicle is used for selecting a normal time to be at night when the bridge is overhauled, and the vertical arm 3 is rotated out of the bridge by rotating the large arm 2 and is vertically put down, so that the operation arm 4 is positioned below the bridge to detect the bridge.
Bridge piers are arranged below the bridge at intervals, in the detection process, the vehicle keeps moving, and the working arm 4 below can be clamped between the bridge piers and the bridge or on the bridge structure, so that the vehicle is forced to stop, however, in the prior art, because the connection among the large arm 2, the vertical arm 3 and the working arm 4 is compact, the repairing takes a long time, the vehicle occupies a line, and traffic jam is easy to cause.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a quick unhooking structure for a bridge inspection vehicle working arm, which can detach a main arm and a connecting arm quickly, so that a vehicle body is separated from the working arm, and traffic jam caused by stopping the bridge inspection vehicle due to the clamping of the working arm is avoided.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides a quick unhooking structure of car operation arm is examined to bridge, includes the big arm of level setting on the car body, keeps away from the vertical arm of car body one end in the big arm and keeps away from the operation arm of big arm one end in the vertical arm, the big arm includes the main arm of being connected with the car body and the linking arm of being connected with the vertical arm, and the main arm can dismantle with the linking arm and be connected, be provided with on the main arm right the cable suspension device that the vertical arm hung.
Through adopting above-mentioned technical scheme, through dividing into main arm and linking arm with the big arm, and main arm and linking arm can dismantle the connection to when the maintenance, when the operation arm blocked, can be comparatively convenient, quick separate main arm and linking arm, make the bridge examine the car and can remove, avoided because the bridge examine the traffic jam that the car stopped to cause.
Preferably, the connecting ends of the main arm and the connecting arm are respectively fixedly provided with a flange, and the main arm and the connecting arm are fixed through locking bolts penetrating through the flanges.
Through adopting above-mentioned technical scheme, with main arm and linking arm fixed connection through the flange that sets up.
Preferably, a plurality of supporting plates protruding towards the connecting arms are arranged around the flange on the main arm, and when the main arm is connected with the connecting arms, the supporting plates are covered around the connecting arms.
Through adopting above-mentioned technical scheme, through the layer board that sets up, when fixed, the layer board holds up the linking arm for the linking arm can be comparatively stable fix on the master arm.
Preferably, the end face, close to the main arm, of the connecting arm is fixedly provided with an inserting block, and one end, close to the connecting arm, of the main arm is provided with an inserting groove which penetrates through the flange and is used for accommodating the inserting block.
Through adopting above-mentioned technical scheme, through the spliced block and the spliced groove that set up, when using, can support fixedly the linking arm, when dismantling, after dismantling locking bolt, the linking arm still is connected on the master arm to make the staff comparatively safe when the operation.
Preferably, the main arm is provided with a first positioning hole communicated with the inserting groove, the inserting block is provided with a second positioning hole, when the connecting arm is arranged on the main arm, the first positioning hole and the second positioning hole are concentric, and the main arm is provided with a positioning pin which can be inserted into the first positioning hole and the second positioning hole.
Through adopting above-mentioned technical scheme, peg graft in the locating hole through the locating pin that sets up for the grafting piece can be comparatively stable spacing in the spliced groove, make the linking arm safer when using.
Preferably, the shape of the plug block at one end far away from the connecting arm is a sphere.
Through adopting above-mentioned technical scheme, be the sphere through setting up the tip setting of joint piece, when dismantling, when separating between main arm and the linking arm, main arm slip joint is on the sphere, and the slip joint through the sphere is excessive for dismantle comparatively stably, safety.
Preferably, the main arm and the connecting arm are respectively hinged with a vertical connecting rod, the vertical connecting rod hinged with the main arm is hinged with a horizontal connecting rod I, the vertical connecting rod hinged with the connecting arm is hinged with a horizontal connecting rod II, and the connecting ends of the horizontal connecting rod I and the horizontal connecting rod II are provided with small flanges.
Through adopting above-mentioned technical scheme, through setting up vertical connecting rod and the horizontal connecting rod below main arm and linking arm, can carry out auxiliary stay to the fixing between main arm and the linking arm for the fixing between main arm and the linking arm is comparatively stable.
Preferably, the hanging device comprises an auxiliary arm which is parallel and is connected to the main arm in a sliding manner and can extend out of the main arm in a sliding manner along the length direction of the main arm, a hoisting mechanism which is fixed on the auxiliary arm and is used for hoisting the vertical arm, and a hydraulic cylinder, wherein a piston rod of the hydraulic cylinder is connected with the auxiliary arm.
Through adopting above-mentioned technical scheme, hang vertical arm through the hoist mechanism that sets up, drive auxiliary arm through the pneumatic cylinder and slide, drive the linking arm and break away from with the main arm.
Preferably, the hoisting mechanism comprises a hoisting machine fixedly provided with one end of the auxiliary arm far away from the vertical arm and a rope wound on an output shaft of the hoisting machine, and the free end of the rope bypasses a fixed pulley arranged on the upper surface of the auxiliary arm near one end of the vertical arm and is connected with a fixed ring fixed at the upper end of the vertical arm through a hook.
Through adopting above-mentioned technical scheme, the couple articulates on solid fixed ring, drives couple upward pulling solid fixed ring through the hoist engine to play main bearing effect to vertical arm, make the linking arm can break away from the main arm comparatively easily.
Preferably, one end of the auxiliary arm, which is close to the vertical arm, is hinged with a connecting disc along a horizontal shaft, a through hole is formed in the connecting disc, a plurality of protrusions are fixedly arranged at the periphery of the upper end of the vertical arm, the auxiliary arm is hung on the vertical arm, and the protrusions are positioned in the through hole and are abutted to the inner wall of the through hole.
Through adopting above-mentioned technical scheme, can fix a position the rope through the connection pad that sets up to when the vertical arm of hoist and mount, vertical arm is comparatively stable, simultaneously, through the protruding of setting, when the pneumatic cylinder promotes the auxiliary arm and slides and drive the linking arm and break away from the main arm, through protruding joint on the connection pad, make connection pad and protruding contact atress, it is comparatively easy to make the linking arm break away from the main arm.
In summary, the invention has the following beneficial effects:
1. the main arm and the connecting arm can be separated conveniently and rapidly, so that the bridge inspection vehicle can be separated from the connecting arm to move, and traffic jam caused by the stop of the bridge inspection vehicle is avoided;
2. the connecting arm can be supported and fixed, and when the locking bolt is detached, the connecting arm is still connected to the main arm, so that the working personnel can operate safely;
3. through the connection pad that sets up, can fix a position the rope to when the vertical arm of hoist and mount, vertical arm is comparatively stable, simultaneously, through the protruding of setting, when the pneumatic cylinder promotes the auxiliary arm slip and drives the linking arm and break away from the main arm, through protruding joint on the connection pad, make connection pad and protruding contact atress, it is comparatively easy to make the linking arm break away from the main arm.
Drawings
FIG. 1 is a schematic diagram of a conventional bridge inspection vehicle;
FIG. 2 is an overall schematic diagram of a quick release structure for a bridge inspection vehicle arm;
FIG. 3 is a schematic view showing a rapid unhooking structure of a bridge inspection vehicle working arm, which protrudes out of the connection structure of a main arm and a connecting arm;
FIG. 4 is an enlarged view of a quick release structure of the arm of the bridge inspection vehicle highlighting the structure A of FIG. 3;
FIG. 5 is a view showing the separation of the protruding main arm from the connecting arm in the quick release structure of the arm of the bridge inspection vehicle;
FIG. 6 is a schematic illustration of a protruding stop assembly in a quick release configuration for a bridge inspection vehicle arm;
fig. 7 is a schematic structural view of a vertical lifting arm of a protruding hoisting mechanism in a quick unhooking structure of a bridge inspection vehicle working arm;
FIG. 8 is an enlarged view of a quick release structure of the arm of the bridge inspection vehicle highlighting the B structure of FIG. 7;
FIG. 9 is a partial view of the connection relationship between the protruding connection disc and the auxiliary arm in the quick release structure of the work arm of the bridge inspection vehicle;
FIG. 10 is a schematic diagram of a second embodiment of a quick release structure for a work arm of a bridge inspection vehicle;
FIG. 11 is an enlarged view of a second embodiment of a quick release structure for a work arm of a bridge inspection vehicle illustrating the structure C of FIG. 10;
fig. 12 is a schematic structural view of a protruding plug block in a third embodiment of a quick unhooking structure of a working arm of a bridge inspection vehicle;
fig. 13 is a schematic view showing a state of an insertion block when a protruding main arm is separated from a connecting arm in the third embodiment of the quick-release structure of the working arm of the bridge inspection vehicle.
Reference numerals: 1. a vehicle body; 2. a large arm; 21. a main arm; 211. a flange; 212. a locking bolt; 213. a supporting plate; 214. positioning holes I; 22. a connecting arm; 23. an auxiliary support assembly; 231. a vertical link; 232. a horizontal connecting rod I; 233. a horizontal connecting rod II; 234. a small flange; 24. a plug-in groove; 25. a plug block; 251. positioning holes II; 26. a positioning pin; 3. a vertical arm; 31. a protrusion; 4. a working arm; 5. a hanging device; 51. an auxiliary arm; 52. a hoisting mechanism; 521. a hoist; 5211. a rope; 522. a fixed pulley; 523. a hook; 524. a fixing ring; 53. a limit component; 531. a fixing plate; 532. a slideway; 533. protruding ridges; 54. a hydraulic cylinder; 541. a piston rod; 55. a connecting disc; 551. a through port; 552. and a horizontal axis.
Detailed Description
The present invention will be described in further detail below with reference to the drawings, wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower", "bottom" and "top" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Example 1
The utility model provides a quick unhooking structure of car operation arm is examined to bridge, as shown in fig. 2, including setting up big arm 2 on car body 1, keeping away from the vertical arm 3 of car body 1 one end in big arm 2 and hoist and mount at the work arm 4 of vertical arm 3 lower extreme, when examining the bridge, big arm 2 rotates for vertical arm 3 is in bridge one side, detects operation arm 4 to the bridge below.
When the large arm 2 is used, in order to prevent the large arm 2 from being blocked, the vehicle is forced to stop on the road to cause traffic interference, the large arm 2 is arranged into two detachable parts, and then the large arm 2 can be quickly unhooked and separated when the large arm 4 is blocked.
As shown in fig. 2 and 3, the large arm 2 includes a main arm 21 connected to the vehicle body 1, and a connection arm 22 having one end detachably connected to the main arm 21 and the other end connected to the vertical arm 3.
As shown in fig. 3 and 4, the main arm 21 and the connecting arm 22 are both provided with flanges 211 at one end surface thereof abutting against each other and are fixed by using locking bolts 212, and at the same time, a pallet 213 is fixedly provided on the main arm 21 near one end of the flanges 211 and around the end surface, and when the connecting arm 22 is fixed to the main arm 21, the pallet 213 lifts the connecting arm 22 from around the connecting arm 22, so that the connecting arm 22 can be stably fixed to the main arm 21.
Further, an auxiliary supporting component 23 is arranged below the main arm 21 and the connecting arm 22, the auxiliary supporting component 23 comprises a plurality of vertical connecting rods 231 hinged to two vertical sides of the large arm 2 at intervals, a first horizontal connecting rod 232 hinged to the lower end of the vertical connecting rod 231 and arranged below the main arm 21, and a second horizontal connecting rod 233 hinged to the vertical connecting rod 231 and arranged below the connecting arm 22, wherein the first horizontal connecting rod 232 is parallel to the main arm 21, the second horizontal connecting rod 233 is parallel to the connecting arm 22, small flanges 234 are fixedly arranged at the ends, close to each other, of the first horizontal connecting rod 232 and the second horizontal connecting rod 233, and are fixedly connected through bolts, so that the fixing between the main arm 21 and the connecting arm 22 is supported in an auxiliary mode, and the fixing is stable.
Meanwhile, two connecting arms 22 are provided and are respectively connected to the end parts of the main arm 21, and the two connecting arms 22 are formed into a U shape at one side far away from the end of the main arm 21 and close to each other, so that the vertical arm 3 is clamped between the two connecting arms 22.
When separation is required, the horizontal link one 232 and the horizontal link two 233 are separated in sequence, and then the main arm 21 is separated from the connecting arm 22.
As shown in fig. 4 and 5, when the main arm 21 and the connecting arm 22 are required to be separated, the locking bolt 212 between the main arm 21 and the connecting arm 22 needs to be manually removed, and in the removal process, in order to keep the connecting arm 22 and the vertical arm 3 stable, a hanging device 5 for hanging the connecting arm 22 and the vertical arm 3 is arranged on the upper surface of the main arm 21 to prevent injury to operators.
As shown in fig. 5 and 6, the hanging device 5 includes an auxiliary arm 51 slidably connected to the main arm 21, and a hoisting mechanism 52 provided on the upper surface of the auxiliary arm 51.
Limiting components 53 are arranged on the upper surface of the main arm 21 and on two sides of the auxiliary arm 51, and limit the auxiliary arm 51 along the direction perpendicular to the length of the main arm 21, so that the auxiliary arm 51 can only slide along the length direction of the main arm 21.
The limiting component 53 comprises a fixing plate 531 fixedly arranged on the main arm 21 and arranged on two sides of the auxiliary arm 51, a slide way 532 arranged on the fixing plate 531 towards one side close to each other, and a protruding ridge 533 fixedly arranged on two vertical side walls of the auxiliary arm 51 and parallel to the upper surface of the main arm 21, wherein the protruding ridge 533 is slidably connected in the slide way 532, so that the auxiliary arm 51 can slide along the length direction of the main arm 21, a hydraulic cylinder 54 is fixedly arranged on the main arm 21, and a piston end 541 of the hydraulic cylinder 54 is hinged to one end, close to the vertical arm 3, of the auxiliary arm 51, so that the auxiliary arm 51 can be driven to slide through the hydraulic cylinder 54.
As shown in fig. 7 and 8, the hoisting mechanism 52 includes a hoist 521 (as shown in fig. 5) fixed to the auxiliary arm 51 and located at an end far from the vertical arm 3, and a fixed pulley 522 located at an upper surface of the auxiliary arm 51 and located at an end near the vertical arm 3, wherein a rope 5211 of the hoist 521 is slidably connected to the fixed pulley 522, a hook 523 is fixedly connected to an end of the rope 5211, a fixing ring 524 is fixedly provided at an upper end of the vertical arm 3, and the rope 5211 extends from an end of the auxiliary arm 51 near the vertical arm 3 and is hung on the fixing ring 524 through the hook 523.
At the time of disassembly, the vertical arm 3 is hung by the hanging hook 523, so that the connecting arm 22, the vertical arm 3, and the working arm 4 are hung by the hoisting mechanism 52, and the auxiliary arm 51 is extended, so that the connecting arm 22 is separated from the main arm 21.
Further, in order to limit the rope 5211 at the end of the auxiliary arm 51, so that the vertical arm 3 is stable when the vertical arm 3 is hung, the end surface of the auxiliary arm 51 close to the vertical arm 3 is hinged with the connecting disc 55 through the horizontal shaft 552 (shown in fig. 9), and when the rope 5211 pulls the vertical arm 3, the connecting disc 55 can slightly rotate upwards, so that the influence on the auxiliary arm 51 is reduced.
The middle part of the connecting disc 55 is provided with a through hole 551, which is in a vertical cylinder shape, and a rope 5211 passes through the through hole 551 of the connecting disc 55 and is hung on the fixed ring 524.
A plurality of cylindrical protrusions 31 are uniformly distributed on the upper end surface of the vertical arm 3 in the circumferential direction of the fixing ring 524, and when the hooks 523 are fixed, the connecting disc 55 is covered on the outer periphery of the protrusions 31 and is respectively abutted against the protrusions 31, so that when the hydraulic cylinder 54 (shown in fig. 2) drives the auxiliary arm 51 to extend, the connecting disc 55 is abutted against the protrusions 31 to drive the connecting arm 22 to separate from the main arm 21, and the separation of the main arm 21 and the connecting arm 22 is realized.
Example two
As shown in fig. 10 and 11, the difference between the structure of the present embodiment and the structure of the first embodiment is that the main arm 21 and the connecting arm 22 are fixedly connected by the flange 211, the end surface of the main arm 21 close to the connecting arm 22 is provided with the plugging slot 24, the end surface of the connecting arm 22 close to the main arm 21 is integrally formed with the plugging block 25, when the main arm 21 and the connecting arm 22 are fixed, the plugging block 25 is plugged into the plugging slot 24, so that the connection between the main arm 21 and the connecting arm 22 is more stable, and meanwhile, when the main arm 21 and the connecting arm 22 are disassembled by the bolts, the connecting arm 22 cannot drop downwards due to the plugging block 25, so that the operation of the staff is safer.
Further, the cross-sectional shapes of the plugging block 25 and the plugging slot 24 may be regular or irregular, as long as the fixing force and the convenience of disassembly can be satisfied.
Meanwhile, when the plug-in block 25 is plugged in the plug-in groove 24, the length of the plug-in block 25 is set to be 30cm-50cm in order to facilitate disassembly, the bearing effect is good, and the length of the plug-in block 25 is moderate during disassembly, so that the disassembly is convenient.
Furthermore, a first positioning hole 214 perpendicular to the main arm 21 and penetrating the insertion groove 24 is formed in the side wall of the main arm 21, a second positioning hole 251 is formed in the insertion block 25, when the insertion block 25 is inserted into the insertion groove 24, the first positioning hole 214 is concentric with the second positioning hole 251, and meanwhile, the insertion block 25 is limited by inserting the positioning pin 26 into the first positioning hole 214 and the second positioning hole 251, so that the insertion block 25 is stable during installation.
Example III
As shown in fig. 12 and 13, the different support of the second embodiment is: the one end integrated into one piece that the spliced block 25 kept away from the linking arm 22 has the sphere 252, and when main arm 21 and linking arm 22 were disassembled, spliced block 25 was by the time of sliding in the jack groove 24, and it is excessive to slide through sphere 252 to make sliding separation between spliced block 25 and the main arm 21, and the separation is comparatively mild, thereby makes the operation safer.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (10)
1. The utility model provides a quick unhooking structure of car operation arm is examined to bridge, includes that the level sets up big arm (2) on car body (1), keeps away from vertical arm (3) of car body (1) one end in big arm (2) to and keep away from operation arm (4) of big arm (2) one end in vertical arm (3), characterized by:
the large arm (2) comprises a main arm (21) connected with the vehicle body (1) and a connecting arm (22) connected with the vertical arm (3), wherein the main arm (21) is detachably connected with the connecting arm (22), and a hanging device (5) for hanging the vertical arm (3) is arranged on the main arm (21).
2. The bridge inspection vehicle work arm quick release structure according to claim 1, characterized in that:
the connecting ends of the main arm (21) and the connecting arm (22) are respectively fixedly provided with a flange (211), and the main arm (21) and the connecting arm (22) are fixed by locking bolts (212) penetrating through the flanges (211).
3. The bridge inspection vehicle work arm quick release structure according to claim 2, characterized in that:
the flange on the main arm (21) is provided with a plurality of supporting plates (213) protruding to the connecting arm (22) around, and when the main arm (21) is connected with the connecting arm (22), the supporting plates (213) are covered around the connecting arm (22).
4. The bridge inspection vehicle work arm quick release structure according to claim 2, characterized in that:
the connecting arm (22) is close to the terminal surface of main arm (21) and fixedly provided with grafting piece (25), main arm (21) are close to one end of connecting arm (22) has seted up and has run through flange (211) and be used for holding grafting groove (24) of grafting piece (25).
5. The bridge inspection vehicle work arm quick release structure according to claim 4, wherein:
the main arm (21) is provided with a first positioning hole (214) communicated with the inserting groove (24), the inserting block (25) is provided with a second positioning hole (251), when the connecting arm (22) is arranged on the main arm (21), the first positioning hole (214) and the second positioning hole (251) are concentric, and the main arm (21) is provided with a positioning pin (26) which can be inserted into the first positioning hole (214) and the second positioning hole (251).
6. The bridge inspection vehicle work arm quick release structure according to claim 4, wherein:
the plug-in block (25) is in a spherical surface (252) at one end far away from the connecting arm (22).
7. The bridge inspection vehicle work arm quick release structure according to claim 4, wherein:
the main arm (21) and the connecting arm (22) are respectively hinged with a vertical connecting rod (231), the vertical connecting rod (231) hinged with the main arm (21) is hinged with a horizontal connecting rod I (232), the vertical connecting rod (231) hinged with the connecting arm (22) is hinged with a horizontal connecting rod II (233), and a small flange (234) is arranged at the connecting end of the horizontal connecting rod I (232) and the horizontal connecting rod II (233).
8. The bridge inspection vehicle work arm quick release structure according to any one of claims 1-7, characterized in that:
the hanging device (5) comprises auxiliary arms (51) which are parallel and connected to the main arms (21) in a sliding manner and can extend out of the main arms (21) in a sliding manner along the length direction of the main arms (21), a hoisting mechanism (52) which is fixed on the auxiliary arms (51) and used for hoisting the vertical arms (3), and a hydraulic cylinder (54), wherein a piston rod (541) of the hydraulic cylinder (54) is connected with the auxiliary arms (51).
9. The bridge inspection vehicle work arm quick release structure of claim 8, wherein:
the hoisting mechanism (52) comprises a hoisting machine (521) fixedly arranged at one end, far away from the vertical arm (3), of the auxiliary arm (51), and a rope (5211) wound on an output shaft of the hoisting machine (521), wherein the free end of the rope (5211) bypasses a fixed pulley (522) arranged on the upper surface, close to one end, of the vertical arm (3), of the auxiliary arm (51) and is connected with a fixed ring (524) fixed at the upper end of the vertical arm (3) through a hook (523).
10. The bridge inspection vehicle work arm quick release structure of claim 9, wherein:
the auxiliary arm (51) is close to one end of the vertical arm (3) and hinged with the connecting disc (55) along the horizontal shaft (552), a through hole (551) is formed in the connecting disc (55), a plurality of protrusions (31) are fixedly arranged at the periphery of the fixing ring (524) at the upper end of the vertical arm (3), and when the vertical arm (3) is hung by the auxiliary arm (51), the protrusions (31) are located in the through hole (551) and are abutted to the inner wall of the through hole (551).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109598.6A CN108103933B (en) | 2018-02-05 | 2018-02-05 | Quick unhooking structure of bridge inspection vehicle operation arm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109598.6A CN108103933B (en) | 2018-02-05 | 2018-02-05 | Quick unhooking structure of bridge inspection vehicle operation arm |
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| Publication Number | Publication Date |
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| CN108103933A CN108103933A (en) | 2018-06-01 |
| CN108103933B true CN108103933B (en) | 2023-11-10 |
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| JP2003341977A (en) * | 2002-05-24 | 2003-12-03 | Kobelco Contstruction Machinery Ltd | Supporting method and device for assembling and dismantling crane |
| CN101337642A (en) * | 2007-07-02 | 2009-01-07 | 湖南省第六工程有限公司 | Aerial disassembly process for big arm of tower crane with horizontal arm and device thereof |
| KR20150118819A (en) * | 2014-04-15 | 2015-10-23 | 씨에스기계 주식회사 | Boom connecting structure of crane |
| CN105036014A (en) * | 2015-07-06 | 2015-11-11 | 中铁西南科学研究院有限公司 | Multifunctional working hanging basket for railway tunnel |
| CN106523467A (en) * | 2016-12-30 | 2017-03-22 | 国家林业局哈尔滨林业机械研究所 | Operation arm based on forestry expandable work platform with rapid assembling function |
| CN206539852U (en) * | 2017-03-16 | 2017-10-03 | 张力勃 | A kind of fast assembling-disassembling rocking arm |
| CN206797505U (en) * | 2017-06-14 | 2017-12-26 | 湖北航天技术研究院特种车辆技术中心 | Rocker-arm spare tire lifting device |
| CN207891736U (en) * | 2018-02-05 | 2018-09-21 | 北京力铁轨道交通设备有限公司 | A kind of bridge-checking vehicle work jibs quickly solve hanging hang structure |
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