CN110540142B - Automobile crane with bridge function, bridge plate and rail car - Google Patents
Automobile crane with bridge function, bridge plate and rail car Download PDFInfo
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- CN110540142B CN110540142B CN201910943251.6A CN201910943251A CN110540142B CN 110540142 B CN110540142 B CN 110540142B CN 201910943251 A CN201910943251 A CN 201910943251A CN 110540142 B CN110540142 B CN 110540142B
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- crane
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- beams
- oil cylinder
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- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 40
- 230000002457 bidirectional effect Effects 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000012876 topography Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses an automobile crane with bridge function, which comprises a vehicle body, wherein two parallel main beams are arranged in the axial direction of the vehicle body, the main beams are of hollow structures, at least one auxiliary beam which can stretch relative to the main beams is arranged in the main beams, the end part of the auxiliary beam far away from the vehicle body is provided with a supporting leg, and the automobile crane also comprises a power mechanism for driving the auxiliary beam to move relative to the main beam; the construction speed is high, and the efficiency is high; the system can be widely applied to traffic transportation under the conditions of rescue and relief work, emergencies, military war and the like, realizes rapid passing of rivers, broken bridges, mountain ditches and canyons in a short time, and wins time for material transportation, rescue and rescue under emergency conditions; in addition, the device also has the functions of ordinary hoisting, pit hoisting, bungee platform construction and the like.
Description
Technical Field
The invention relates to the technical field of hoisting equipment and rescue equipment, in particular to an automobile crane with a bridge function, a bridge plate and a rail car.
Background
The automobile crane is one kind of crane installed on common automobile chassis or special automobile chassis and has driving cab and hoisting cab separately. The crane has the advantages of good maneuverability and rapid transfer. The automobile crane comprises an automobile body, wherein a cab, an operating room, a lifting mechanism, a hoisting mechanism, an amplitude changing mechanism, a rotating mechanism, a lifting arm, supporting legs, a counterweight and an automobile chassis are arranged on the automobile body, and a power mechanism for driving an automobile to run and a hydraulic system for driving all parts to run are arranged on the automobile chassis. Due to the development of hydraulic technology, electronic industry, high-strength steel and automobile industry, the development of automobile cranes is promoted. The mechanical transmission type automobile crane with large self weight and long working preparation time is replaced by the hydraulic automobile crane. The hydraulic system of the hydraulic truck crane adopts a hydraulic pump and a quantitative or variable motor to realize lifting rotation, amplitude variation, boom extension and landing leg extension of the crane and can act singly or in combination. However, the traditional automobile crane has single function and can only be used for hoisting articles.
Among the prior art, chinese patent CN101974882a discloses a remove cable-stayed bridge with flexible bridge floor and perpendicular multistage lift bridge column of well font, adopts multistage telescopic bridge floor structure, supports flexible bridge floor through well font cable-stayed bridge, can build the bridge passageway fast, makes personnel, supplies, vehicle realize river, bridge cut-off, gully, the fast traffic of gorge in the short time. The first bridge tower of the mobile cable-stayed bridge is a cross bridge formed by four vertical multistage lifting bridge columns, and the lifting bridge columns are still vertical to the ground and cannot be inclined horizontally after being retracted, so that the lifting bridge columns have higher heights, the cable-stayed bridge is limited to pass on a road; 2. the cable-stayed bridge has wide occupied area, and a plurality of driving devices are arranged, so that the cable-stayed bridge has heavier mass, is very inconvenient to move and carry and has limited use; 3. the bridge deck is integral, and the quality is heavier, and simultaneously, the telescopic mechanism of drive bridge deck is sprocket, pulley etc. therefore actuating mechanism power take off is weaker, and in addition the bridge deck is heavier, leads to the practicality poor.
Disclosure of Invention
The invention aims to solve the technical problems of single function of the traditional crane, small span and poor practicability of the traditional movable cable-stayed bridge, and provides an automobile crane with a bridge function, a bridge plate and a rail car. The invention is based on a boom, a cab, a landing leg, a counterweight, a hoisting mechanism, a power mechanism and a hydraulic system of an automobile crane in the prior art.
The technical scheme adopted by the invention is as follows:
The utility model provides a take automobile crane of bridge function, includes the automobile body be provided with two girders that are parallel to each other in the axial of automobile body, be connected through the main beam between two girders, the girder is hollow structure, is provided with at least one auxiliary girder that can stretch out and draw back for the girder in the girder, the tip that the automobile body was kept away from to the auxiliary girder is provided with the landing leg, and the tip that the automobile body was kept away from to two auxiliary girders of assorted is connected through the auxiliary beam, still includes the power unit that drive auxiliary girder removed for the girder. The main beam is provided with a power device and a hydraulic system which correspondingly drive the crane to operate. The power mechanism drives the auxiliary beams to extend out of the main beam, the end parts of the auxiliary beams are provided with supporting legs, the auxiliary beams are connected through auxiliary beams, the two auxiliary beams can synchronously stretch out and draw back, and the auxiliary beams can pass through as foundation beams of the bridge body. Compared with the integral bridge deck in the prior art, the auxiliary beam is used as the foundation beam of the bridge body, so that the weight of the bridge body is reduced, and a bridge channel can be quickly built. The invention combines with the traditional automobile crane, is convenient to transport and quick to build, and is connected with the ground through the supporting legs of the crane.
Further, the power mechanism comprises a first telescopic oil cylinder arranged on the vehicle body, a pin hole and a pin shaft which are arranged on the first telescopic oil cylinder, and a through hole matched with the first telescopic oil cylinder is formed in the auxiliary cross beam. The fixed end of the first telescopic cylinder is fixedly connected with the vehicle body, a pin shaft is arranged in a pin hole of the first telescopic cylinder in the process that the auxiliary beam stretches out, the first telescopic cylinder stretches out, the movable end of the first telescopic cylinder penetrates through a through hole in the auxiliary beam, the pin shaft limits the through hole, and the auxiliary beam can synchronously move along with the first telescopic cylinder to complete the stretching out of the auxiliary beam. In the secondary beam retraction process, the first telescopic oil cylinder stretches out and passes through the through hole, so that a pin hole on the first telescopic oil cylinder also passes through the through hole, the pin shaft is installed in the pin hole, the pin shaft plays a limiting role on the through hole, the primary telescopic oil cylinder retracts to drive the secondary beam to synchronously move, and the secondary beam is retracted. The device is simple in mechanism and convenient to operate, and the bridge foundation beam can be built through a single power device.
Further, hanging rings are arranged on one side of the auxiliary cross beam, the crane arm facing the auxiliary cross beam, one side of the crane arm facing away from the auxiliary cross beam and one side of the vehicle body away from the auxiliary cross beam, and the hanging rings on the auxiliary cross beam and the hanging rings on one side of the crane arm facing the auxiliary cross beam are connected through steel wires; the suspension loop arranged on one side of the crane arm, which is opposite to the auxiliary beam, is connected with the suspension loop arranged on one side of the vehicle body, which is far away from the auxiliary beam, through a steel wire rope. According to the invention, the crane is well matched with the cable-stayed bridge, the crane boom stretches out, one end of the crane boom is connected with the auxiliary beam through the steel wire rope, the other end of the crane boom is connected with the vehicle body through the steel wire rope, the crane boom in the stretching-out state can be used as a cable-stayed rope of the cable-stayed bridge, the auxiliary beam is used as a basic beam of the cable-stayed bridge, and the quick construction of the cable-stayed bridge is completed; and the length of the crane boom can be adjusted to adapt to cable-stayed bridges with different spans so as to achieve the best effect. The invention has the characteristics of small occupied area, no difference between the retraction state of the cable-stayed bridge and the appearance of the automobile crane, convenient transportation, high construction speed and the like.
Further, the auxiliary beam comprises an upper beam arranged between the two auxiliary beams and a lower beam arranged below the upper beam, and the hanging ring is arranged on the lower beam. The upper cross beam plays a role in connecting two auxiliary beams, plays a role in reinforcing the auxiliary beams, and the lower cross beam is arranged below the auxiliary beams and is connected with the crane boom through a steel wire rope, so that a bearing effect is achieved. Compared with a single auxiliary beam, the structure enables the auxiliary beam to be stressed more uniformly and has a wider stressed area, and further ensures the stability of the auxiliary beam.
Further, the steel wire rope is connected with the hanging ring through a hook, and a first adjusting mechanism for adjusting the steel wire rope is arranged on the hook. The length of the steel wire rope can be adjusted through the first adjusting mechanism, so that the steel wire rope is pulled more tightly, and the stability of the cable-stayed bridge is further ensured.
Further, the first adjusting mechanism comprises a threaded hole, a screw rod and a screw cap which are arranged on the hook, one end of the screw rod is fixedly connected with the steel wire rope, and the other end of the screw rod penetrates through the threaded hole to be connected with the screw cap. Through rotating the nut, the screw rod rotates in the threaded hole, and then the steel wire rope is driven to move, so that the steel wire rope is pulled more tightly, and the stability of the cable-stayed bridge is ensured.
Further, a detachable reinforcing beam for connecting the two paired auxiliary beams is arranged in the middle of the auxiliary beam, and a hanging ring is arranged on the reinforcing beam and connected with the crane boom through a steel wire rope. The matched auxiliary beams are two auxiliary beams connected by the auxiliary cross beams. The reinforcing cross beam further increases the stress points of the crane boom and the auxiliary beam, so that the auxiliary beam is stressed more uniformly, and the stability of the auxiliary beam, namely the stability of the cable-stayed bridge, is ensured.
Further, the reinforcing beam comprises a reinforcing beam body and a connecting mechanism arranged on the beam body; the connecting mechanism comprises two mounting plates which are arranged on the beam body and matched with the width of the auxiliary beam, and the mounting plates are connected with the auxiliary beam through bolts, so that the connecting mechanism is simple in structure and convenient to install.
Further, the two lifting arms are parallel to each other, and the lifting arms are connected through a cross arm; the outer sides of the two main beams are also provided with two side beams parallel to the main beams, the crane arms are arranged on the side beams, and the side beams are provided with supporting legs. The crane arm is arranged on the side beam, so that a gap is reserved on the main beam, a wider vehicle can pass conveniently, the practicability is improved, and the application range is wider.
Further, at least one auxiliary side beam movably connected with the side beam and a second telescopic oil cylinder for driving the auxiliary side beam to move relative to the side beam are arranged in the side beam, the fixed end of the second telescopic oil cylinder is connected with the side beam, and the movable end of the second telescopic oil cylinder is connected with the auxiliary side beam. The mode that the second telescopic oil cylinder drives the auxiliary side beam to extend out of the side beam is the same as the horizontal supporting leg telescopic mode of the automobile crane in the prior art, and the auxiliary side beam is driven to synchronously stretch out and draw back through the stretching of the second telescopic oil cylinder. On one hand, the arrangement of the auxiliary side beams increases the contact area between the vehicle body and the ground, so that the stress of the vehicle body is more uniform; on the other hand, because the direction in which the auxiliary side beam extends is opposite to the direction in which the auxiliary beam extends, the center of gravity of the whole vehicle body can deviate in a direction away from the auxiliary beam, and the vehicle body is further stable.
The device also comprises a second adjusting mechanism capable of adjusting the distance between the two side beams and a third adjusting mechanism capable of adjusting the distance between the cab and the control room; the second adjusting mechanism comprises a first bidirectional telescopic oil cylinder arranged at the bottom of the main beam and a second bidirectional telescopic oil cylinder arranged between two lifting arms, two movable ends of the first bidirectional telescopic oil cylinder are respectively connected with two side beams, two movable ends of the second bidirectional telescopic oil cylinder are connected with two lifting arms, and the bottom of the main beam is provided with a telescopic mechanism; the telescopic mechanism comprises a first telescopic beam connected with one side beam and a second telescopic beam which is arranged in the first telescopic beam, can move relative to the first telescopic beam and is connected with the other main beam; the cross arm comprises a first cross arm connected with one lifting arm and a second cross arm which is arranged in the first cross arm, can move relative to the first cross arm and is connected with the other lifting arm.
The first bidirectional telescopic oil cylinder and the second bidirectional telescopic oil cylinder extend synchronously, so that the distance between the two side beams is gradually increased, and meanwhile, the distance between the two lifting arms is also gradually increased. After the distance between the crane arms is increased, the crane arms can not interfere vehicles passing on the main beams, so that vehicles with larger passable width on the main beams can pass, and the cable-stayed bridge can pass wider vehicles, so that the universality is greatly improved.
Further, the third adjusting mechanism comprises a third bidirectional telescopic oil cylinder arranged below the main beam, and two movable ends of the third bidirectional telescopic oil cylinder are respectively connected with the cab and the control room. The third bidirectional telescopic oil cylinder stretches out to drive the cab and the control room to synchronously move, so that the distance between the cab and the control room is increased, vehicles with wider passing width on the main beam are facilitated, and the universality is improved.
Bridge plate for automobile crane with bridge function, the bridge plate comprises a frame, a first bridge panel and a first fixing mechanism are arranged on the frame, wherein the first bridge panel and the first fixing mechanism are arranged on the frame, and the first fixing mechanism comprises two clamping plates which are arranged in parallel and at a certain distance. As a passing mode, the bridge plate is inserted into the auxiliary beam and the main beam, and the clamping plate is clamped on the auxiliary beam or the main beam; the bridge plate is more convenient for pedestrians and vehicles to pass through, and the passing efficiency is improved.
Further, the first bridge deck is uniformly provided with ventilation holes. The upper end face and the lower end face of the bridge are suspended, so that the air flow speed is high, the wind resistance is large, the contact area between the first bridge deck and wind power can be reduced by arranging the air holes in the first bridge deck, the wind resistance can be reduced, and the stability of the cable-stayed bridge is ensured.
A railcar for taking mobile crane of bridge function includes frame, the second decking of setting metal above the frame, wheel and the shaft below the frame, links to each other through the shaft between the wheel. As another passing mode, the rail car is used, so that the rail car can pass vehicles or pedestrians without paving bridge decks, a corresponding power mechanism is arranged at the other end of the cable-stayed bridge, the power mechanism is connected with the rail car through a steel wire rope, and the rail car can be driven to move on the auxiliary beam or the main beam through the power mechanism.
Further, the wheel comprises an inner wheel and an outer wheel which are coaxially arranged, the inner wheel and the outer wheel can axially slide relative to each other, and a limiting device is further arranged on the wheel shaft. Because girder and each auxiliary girder can stretch out and draw back each other, consequently girder and each auxiliary girder's width is different, and stop device can be according to the distance of the width automatic adjustment interior wheel of auxiliary girder and girder with the outer wheel.
Further, the limiting device comprises a limiting block and a spring, wherein the limiting block and the spring are arranged on the wheel shaft between the limiting block and the inner wheel. When the rail car moves from the main beam to the auxiliary beam, the moving path of the rail car is narrowed, and the spring automatically stretches to apply force to the inner wheel towards the outer wheel, so that the distance between the inner wheel and the outer wheel is narrowed to adapt to the narrowed path; when the rail car moves from the auxiliary beam to the main beam, the moving path of the rail car is widened, the main beam applies acting force to the inner wheel, and the spring is extruded, so that the distance between the inner wheel and the outer wheel is widened to adapt to the widened path; thereby making the rail car run more stably on the main beam and the auxiliary beam.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention is combined with the traditional automobile crane, the crane boom is used as a cable tower of the cable-stayed bridge, a steel wire rope connected between the crane boom and the auxiliary beam and the automobile body is used as an oblique stay rope, and the telescopic auxiliary beam is used as a basic beam of the cable-stayed bridge; the construction speed is high, and the efficiency is high; the supporting legs of the crane are connected with the ground, so that the supporting contact area is wide, the stress is uniform, and the stability of the constructed cable-stayed bridge is stronger; when the cable-stayed bridge is in a retraction state, the cable-stayed bridge is free from difference with the appearance of the automobile crane, has small occupied area and is convenient for transportation; the system can be widely applied to traffic transportation under the conditions of rescue and relief work, emergencies, military war and the like, realizes rapid passing of rivers, broken bridges, mountain ditches and canyons in a short time, and wins time for material transportation, rescue and rescue under emergency conditions.
2. According to the automobile crane with the bridge function, on one hand, the distance between the side beams is adjustable, so that the distance between the crane arms is increased, the crane arms cannot interfere vehicles passing on the main beams, the passing width and space of the vehicles are increased, and the vehicles with larger passing width on the main beams can pass; on the other hand, the distance between the cab and the control room is adjustable, so that the passing width and space of the vehicle are increased, and the vehicle with larger passing width on the main beam can pass; the universality is greatly improved.
3. The length of the steel wire rope can be adjusted through the first adjusting mechanism, so that the steel wire rope is pulled more tightly, and the stability of the cable-stayed bridge is further ensured.
4. The telescopic auxiliary side beams are arranged in the side beams, so that the contact area between the vehicle body and the ground is increased, and the stress of the vehicle body is more uniform; on the other hand, because the direction of the extension of the auxiliary side beams is opposite to the direction of the extension of the auxiliary beams, the gravity center of the whole vehicle body can deviate in the direction away from the auxiliary beams, and the cable-stayed bridge is more stable.
5. According to the invention, through two passing modes of the bridge plate and the railcar which are detachably connected with the cable-stayed bridge, the passing of vehicles or pedestrians on the cable-stayed bridge can be rapidly realized.
6. The distance between the inner wheel and the outer wheel can be automatically adjusted according to the widths of the auxiliary beam and the main beam by the limiting device arranged on the rail car, so that the rail car can run on the main beam and the auxiliary beam more stably.
7. The automobile crane with the bridge function can be used for ordinary hoisting, pit hoisting, cable-stayed bridge construction and bungee jumping platform construction, and has the advantages of diversified functions, wide application range and strong universality.
Drawings
Fig. 1 is a perspective view of the present invention in a state of use.
Fig. 2 is a front view of the present invention in a use state.
Fig. 3 is a partial enlarged view of a in fig. 2.
Fig. 4 is a schematic view of the connection of the extension of the secondary beams.
Fig. 5 is a schematic view of the connection of the secondary beam retracted.
Fig. 6 is a schematic diagram of the connection of the first telescopic cylinder to the auxiliary cross beam.
Fig. 7 is a schematic structural view of the reinforcing beam.
Fig. 8 is a schematic structural view of the sub cross member.
Fig. 9 is a schematic structural view of the bridge plate.
Fig. 10 is a schematic structural view of a railcar.
Fig. 11 is a front view of the side member retracted state.
Fig. 12 is a bottom view of fig. 11.
Fig. 13 is a state view of the side member after the side member is extended.
Fig. 14 is a state diagram before the cab and the cab are extended and retracted.
Fig. 15 is a state diagram after the cab and the cab are extended and retracted.
Fig. 16 is a state diagram before boom extension and retraction.
Fig. 17 is a state diagram after boom extension and retraction.
Fig. 18 is a second state of use of the present invention.
Fig. 19 is a third state of use of the present invention.
Fig. 20 is a schematic view of the present invention in a non-operative state.
Marked in the figure as:
101. a boom; 102. a cab; 103 control room; 104. a support leg; 105. a counterweight; 106. a bat cylinder; 107. a sloping plate; 108. a hoisting mechanism;
2. A main beam;
21. A main beam;
22. A reinforcing beam; 221. a body; 222. a mounting plate;
23. a cross arm; 231. a first cross arm; 232. a second cross arm;
24. A telescopic beam; 241. a first telescopic beam; 242. a second telescopic beam;
3. An auxiliary beam;
31. an auxiliary cross beam; 311. an upper cross beam; 312. a lower cross beam;
41. a telescopic oil cylinder; 411. a pin hole; 42. a pin shaft; 43. a through hole; 44. hanging rings; 45. a wire rope; 46. a hook; 461. a screw; 462. a screw cap;
5. a side beam; 51. a sub side member;
61. the first bidirectional telescopic oil cylinder; 62. the second bidirectional telescopic oil cylinder; 63. a third bidirectional telescopic oil cylinder;
71. a frame; 72. a first bridge deck; 73. a clamping plate;
81. a frame; 82. a second bridge deck; 83. a wheel; 831. an inner wheel; 832. an outer wheel; 84. a wheel axle;
91. a limiting block; 92. a spring;
10. and (3) a pulley.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Embodiment one:
The embodiment shows the construction structure of the cable-stayed bridge. As shown in fig. 1,2, 4, 5, 6, 7, 8 and 20, the automobile crane with the bridge function comprises an automobile body, wherein the automobile body comprises a crane arm 101, a cab 102, an operating room 103, a supporting leg 104, a counterweight 105, an amplitude-variable oil cylinder 106, a hoisting mechanism 108 and a corresponding power device and a hydraulic system for driving the automobile crane to operate; two parallel main beams 2 are arranged in the axial direction of the vehicle body, the two main beams 2 are connected through a main beam 21, the main beam 2 is of a hollow structure, four auxiliary beams 3 which can stretch and retract relative to the main beam 2 are arranged in the main beam 2, the four auxiliary beams 3 are embedded step by step, a first-stage auxiliary beam, a second-stage auxiliary beam, a third-stage auxiliary beam and a fourth-stage auxiliary beam are sequentially arranged from right to left, the fourth-stage auxiliary beam is arranged in the third-stage auxiliary beam, the third-stage auxiliary beam is arranged in the second-stage auxiliary beam, the second-stage auxiliary beam is arranged in the first-stage auxiliary beam, and the first-stage auxiliary beam is arranged in the main beam; the end part of the fourth-stage auxiliary beam, which is far away from the vehicle body, is provided with a supporting leg 104, the end parts of the two auxiliary beams 3, which are matched, are far away from the vehicle body, are connected through an auxiliary cross beam 31, and the auxiliary beam comprises a power mechanism for driving the auxiliary beams 3 to move relative to the main beam 2. The power mechanism comprises a first telescopic oil cylinder 41 arranged on the vehicle body, a pin hole 411 arranged on the first telescopic oil cylinder 41 and a pin shaft 42, and a through hole 43 matched with the first telescopic oil cylinder 41 is arranged on the auxiliary cross beam 31. The two lifting arms 101 are parallel to each other, and the lifting arms 101 are connected through a cross arm 23; the outer sides of the two main beams 2 are also provided with two side beams 5 parallel to the main beams 2, the crane arms 101 are arranged on the side beams 5, and the side beams 5 are provided with supporting legs. The side of the auxiliary cross beam 31, the side of the lifting arm 101 facing away from the auxiliary cross beam 31 and the side of the vehicle body far away from the auxiliary cross beam 31 are respectively provided with a hanging ring 44, and the hanging ring on the auxiliary cross beam 31 and the hanging ring on the side of the lifting arm 101 facing the auxiliary cross beam 31 are connected through a steel wire rope 45; the suspension loop arranged on the side of the boom 101, which is away from the auxiliary beam 31, is connected with the suspension loop arranged on the side of the vehicle body, which is far away from the auxiliary beam 31, through a steel wire rope 45. The auxiliary beam 31 includes an upper beam 311 disposed between the two auxiliary beams 3 and a lower beam 312 disposed below the upper beam 311, and the suspension ring 44 is disposed on the lower beam 312.
Working principle: the truck crane with the bridge function is driven to a place needing bridge erection, a position with flat and hard terrain is selected, and each supporting leg of the truck crane extends out to be fixed with the ground. And determining the extension quantity and length of the auxiliary beams and the length of the steel wire ropes according to the distance between the two banks, and then determining the extension length of the crane boom according to the span of the cable-stayed bridge. And connecting the steel wire rope among the auxiliary beam, the crane boom and the vehicle body to form a cable-stayed rope of the cable-stayed bridge. And (3) extending the amplitude-variable oil cylinder, and then extending the matched crane arm length by a distance calculated in advance, wherein the steel wire rope is gradually tightened in the extending process of the crane arm. Fig. 4 shows a schematic view of the structure in which the sub-beam is extended, and fig. 5 shows a schematic view of the structure in which the sub-beam is retracted. After the piston rod of the first oil cylinder sequentially passes through the through hole of the auxiliary beam of the first-stage auxiliary beam, the through hole of the auxiliary beam of the second-stage auxiliary beam and the through hole of the auxiliary beam of the third-stage auxiliary beam, the first oil cylinder stops, a pin shaft is arranged in a pin hole of the first oil cylinder, the first oil cylinder stretches out again, the pin shaft clamps the through hole of the auxiliary beam on the fourth-stage auxiliary beam, the fourth-stage auxiliary beam can synchronously move along with the first oil cylinder, the stretching out of the fourth-stage auxiliary beam is completed, the first oil cylinder retracts and takes down the pin shaft, and then the third-stage auxiliary beam, the second-stage auxiliary beam and the first-stage auxiliary beam are sequentially stretched out by using the same method. The auxiliary beam is stretched gradually to tighten the steel wire rope and is used as a cable-stayed rope of the cable-stayed bridge. After the cable-stayed bridge is built, sloping plates 107 are paved at the two ends of the cable-stayed bridge.
Because the auxiliary beams have certain gravity, distortion can occur in the telescopic process between the auxiliary beams. In order to avoid the occurrence of the above-mentioned condition, at the telescopic process of auxiliary girder, the lifting hook of hoist is connected with auxiliary crossbeam through wire rope, at the telescopic in-process of auxiliary girder, hoist mechanism matches with corresponding speed for the lifting hook of hoist plays the traction to the auxiliary girder, can avoid distortion between the auxiliary girder. And when the auxiliary beam stretches out and draws back, the auxiliary beam is continuously pulled, so that the stability and bearing capacity of the auxiliary beam are enhanced.
The invention is combined with the traditional automobile crane, the crane boom is used as a cable tower of the cable-stayed bridge, a steel wire rope connected between the crane boom and the auxiliary beam and the automobile body is used as an oblique stay rope, and the telescopic auxiliary beam is used as a basic beam of the cable-stayed bridge; the construction speed is high, and the efficiency is high; the supporting legs of the crane are connected with the ground, so that the supporting contact area is wide, the stress is uniform, and the stability of the constructed cable-stayed bridge is stronger; when the cable-stayed bridge is in a retraction state, the cable-stayed bridge is free from difference with the appearance of the automobile crane, has small occupied area and is convenient for transportation; the system can be widely applied to traffic transportation under the conditions of rescue and relief work, emergencies, military war and the like, realizes rapid passing of rivers, broken bridges, ravines and canyons in a short time, and wins time for military transportation, rescue and the like.
Embodiment two:
This embodiment is a further improvement on the basis of the first embodiment. As shown in fig. 1,2 and 7, a detachable reinforcing beam 22 for connecting two paired auxiliary beams 3 is arranged in the middle of the auxiliary beam 3, and a hanging ring 44 is arranged on the reinforcing beam 22 and is connected with the crane boom 101 through a steel wire rope 45. The reinforcement beam 22 includes a reinforcement beam body 221 and a connection mechanism provided on the beam body 221; the connecting mechanism comprises two mounting plates 222 which are arranged on the beam body 221 and matched with the width of the auxiliary beam 3, and the mounting plates 222 are connected with the auxiliary beam 3 through bolts.
Working principle: during installation, when each auxiliary beam stretches out half, namely in the middle part of the auxiliary beam, the reinforcing beam is hoisted to the auxiliary beam through other hoisting equipment and fixed with the auxiliary beam through bolts, and the reinforcing beam is connected with the crane boom through a steel wire rope. The reinforcing beam can also play a supporting role on the auxiliary beam, and the stress points of the crane boom and the auxiliary beam are further increased by the reinforcing beam, so that the auxiliary beam is stressed more uniformly, the stability of the auxiliary beam is further ensured, and the stability of the cable-stayed bridge is also ensured.
Embodiment III:
This embodiment is a further improvement on the basis of the first embodiment. As shown in fig. 3, the steel wire rope 45 is connected with the hanging ring 44 through a hanging hook 46, and a first adjusting mechanism for adjusting the length of the steel wire rope 45 is arranged on the hanging hook 46. The first adjusting mechanism comprises a threaded hole, a screw 461 and a screw cap 462 which are arranged on the hook 46, one end of the screw 461 is fixedly connected with the steel wire rope 45, and the other end of the screw 461 penetrates through the threaded hole to be connected with the screw cap 462.
Working principle: through rotating the nut, the screw rod rotates in the threaded hole, and then the steel wire rope is driven to move towards the hanging ring, so that the steel wire rope is pulled more tightly, and the stability of the cable-stayed bridge is ensured.
Embodiment four:
this embodiment is a further improvement on the basis of the first embodiment. As shown in fig. 1 and2, at least one sub-side member 51 movably connected to the side member 5 and a second telescopic cylinder (not shown) for driving the sub-side member 51 to move relative to the side member 5 are provided in the side member 5, and a fixed end of the second telescopic cylinder is connected to the side member 5 and a movable end is connected to the sub-side member 51.
Working principle: the mode that the second telescopic oil cylinder drives the auxiliary side beam to extend out of the side beam is the same as the horizontal supporting leg telescopic mode of the automobile crane in the prior art, and the auxiliary side beam is driven to synchronously stretch out and draw back through the stretching of the second telescopic oil cylinder. On one hand, the contact area between the vehicle body and the ground is increased, so that the stress of the vehicle body is more uniform; on the other hand, because the direction in which the auxiliary side beam extends is opposite to the direction in which the auxiliary beam extends, the center of gravity of the whole vehicle body can deviate in a direction away from the auxiliary beam, and the vehicle body is further stable.
Fifth embodiment:
This embodiment is a further improvement on the basis of the first embodiment. As shown in fig. 11 to 17, the device further comprises a second adjusting mechanism for adjusting the distance between the two side beams 5 and a third adjusting mechanism for adjusting the distance between the cab 102 and the cab 13; the second adjusting mechanism comprises a first bidirectional telescopic cylinder 61 arranged at the bottom of the main beam 21 and a second bidirectional telescopic cylinder 62 arranged between the two lifting arms 101, two movable ends of the first bidirectional telescopic cylinder 61 are respectively connected with the two side beams 5, two movable ends of the second bidirectional telescopic cylinder 62 are connected with the two lifting arms 101, and the bottom of the main beam 21 is provided with a telescopic mechanism; the telescopic mechanism comprises a first telescopic beam 241 connected with one side beam 5 and a second telescopic beam 242 which is arranged in the first telescopic beam 241, can move relative to the first telescopic beam 241 and is connected with the other side beam 5; the cross arm 23 includes a first cross arm 231 coupled to one boom 101 and a second cross arm 232 disposed within the first cross arm 231 and movable relative to the first cross arm 231 and coupled to the other boom 101. The third adjusting mechanism comprises a third bidirectional telescopic cylinder 63 arranged below the main beam 2, and two movable ends of the third bidirectional telescopic cylinder 63 are respectively connected with the cab 102 and the control room 103.
Working principle: fig. 11 and 12 show a state diagram before the side beam is extended and fig. 16 shows a state diagram before the crane is extended. At this time, the first bidirectional telescopic cylinder and the second bidirectional telescopic cylinder extend synchronously, so that the distance between the two side beams is gradually increased, and the distance between the two crane arms is also gradually increased synchronously. The second telescopic beam moves synchronously with the side beam relative to the first telescopic beam, and the second cross arm moves synchronously with the crane arm relative to the first cross arm in the first cross arm. After the distance between the lifting arms is increased, the lifting arms cannot interfere vehicles passing on the main beams; the third bidirectional telescopic oil cylinder stretches out to drive the cab and the control room to synchronously move, so that the distance between the cab and the control room is increased, vehicles with larger passable width on the main beam are further increased, the cable-stayed bridge can pass wider vehicles, and the universality is greatly improved.
Example six:
As shown in fig. 9, the bridge plate for the truck crane with bridge function comprises a frame 71, wherein a first bridge deck 72 and a first fixing mechanism are arranged on the frame 71, and the first fixing mechanism comprises two clamping plates 73 which are arranged in parallel and at a certain distance. Ventilation holes (not shown) are uniformly formed in the first bridge deck 72.
Working principle: the bridge plate is directly paved on the main beam or the auxiliary beam, and is clamped with the auxiliary beam and the main beam, so that the bridge plate is clamped on the auxiliary beam or the main beam as a passing mode; the bridge plate is more convenient for pedestrians and vehicles to pass through, and the passing efficiency is improved.
Embodiment seven:
As shown in fig. 10, a rail car for an automobile crane with a bridge function comprises a frame 81, a second bridge deck 82 arranged above the frame 81, wheels 83 and wheel shafts 84 below the frame 81, wherein the wheels 83 are connected through the wheel shafts 84. The wheel 83 comprises an inner wheel 831 and an outer wheel 832 which are coaxially arranged, the inner wheel 831 and the outer wheel 832 are axially slidable relative to each other, and the wheel axle 84 is further provided with a limiting device. The limiting means comprises a limiting block 91 arranged on the axle 84 and a spring 92, said spring 92 being arranged on the axle 84 between the limiting block 91 and the inner wheel 831.
Working principle: after the cable-stayed bridge is built, power devices which correspondingly drive the rail cars to move on the main beam and the auxiliary beam are arranged on the ground. As another way of passing, by using rail cars, vehicles or pedestrians can be passed without the need to lay bridge decks. Because girder and each auxiliary girder can stretch out and draw back each other, consequently girder and each auxiliary girder's width is different, and stop device can be according to the distance of the width automatic adjustment interior wheel of auxiliary girder and girder with the outer wheel. When the rail car moves from the main beam to the auxiliary beam, the moving path of the rail car is narrowed, and the spring automatically stretches to apply force to the inner wheel towards the outer wheel, so that the distance between the inner wheel and the outer wheel is narrowed to adapt to the narrowed path; when the rail car moves from the auxiliary beam to the main beam, the moving path of the rail car is widened, the main beam applies acting force to the inner wheel, and the spring is extruded, so that the distance between the inner wheel and the outer wheel is widened to adapt to the widened path; thereby making the rail car run more stably on the main beam and the auxiliary beam.
Example eight:
the embodiment is a state diagram showing the hoisting object of the automobile crane with the bridge function. As shown in fig. 18, the truck crane with bridge function of the invention is driven to a place needing to be lifted, the position with flat and hard topography is selected, each supporting leg of the truck crane extends out to be fixed with the ground, and then the luffing cylinder and the crane arm extend out to lift the article.
Example nine:
The embodiment is a state diagram showing the truck crane pit lifting article with the bridge function. As shown in fig. 19, the truck crane with bridge function of the invention is driven to a place needing to be lifted, and the landing legs of the truck crane are extended out to be fixed with the ground by selecting a position with flat and hard topography. And determining the extension number and length of the auxiliary beams and the length of the steel wire rope according to the actual distance, and then determining the extension length of the crane boom according to the span of the auxiliary beams. The steel wire rope is connected between the auxiliary beam, the lifting arm and the vehicle body, the luffing cylinder extends out, then the lifting arm extends out, the pulley 10 is arranged at the end part of the fourth-stage auxiliary beam, and the lifting hook is connected with a lifted object through the pulley to complete pit lifting. The state diagram of the automobile crane can also be used as a bungee jumping platform, has diversified functions, and has wide application range and strong universality.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Take automobile crane of bridge function, including the automobile body, its characterized in that: two parallel main beams (2) are arranged in the axial direction of the vehicle body, the two main beams (2) are connected through a main beam (21), the main beam (2) is of a hollow structure, at least one auxiliary beam (3) which can stretch and retract relative to the main beam (2) is arranged in the main beam (2), a supporting leg (104) is arranged at the end part, far away from the vehicle body, of the auxiliary beam (3) which is matched, the end part, far away from the vehicle body, of the auxiliary beam is connected through an auxiliary beam (31), and the auxiliary beam comprises a power mechanism for driving the auxiliary beam (3) to move relative to the main beam (2); the power mechanism comprises a first telescopic oil cylinder (41) arranged on the vehicle body, a pin hole (411) arranged on the first telescopic oil cylinder (41) and a pin shaft (42), and a through hole (43) matched with the first telescopic oil cylinder (41) is arranged on the auxiliary cross beam (31); the two lifting arms (101) are parallel to each other, and the lifting arms (101) are connected through a cross arm (23); two side beams (5) parallel to the main beams (2) are further arranged on the outer sides of the two main beams (2), the crane arms (101) are arranged on the side beams (5), and supporting legs are arranged on the side beams (5); the device also comprises a second adjusting mechanism capable of adjusting the distance between the two side beams (5) and a third adjusting mechanism capable of adjusting the distance between the cab (102) and the control room (13);
The second adjusting mechanism comprises a first bidirectional telescopic oil cylinder (61) arranged at the bottom of the main beam (21) and a second bidirectional telescopic oil cylinder (62) arranged between the two lifting arms (101), two movable ends of the first bidirectional telescopic oil cylinder (61) are respectively connected with the two side beams (5), two movable ends of the second bidirectional telescopic oil cylinder (62) are connected with the two lifting arms (101), and the bottom of the main beam (21) is provided with a telescopic mechanism; the telescopic mechanism comprises a first telescopic beam (241) connected with one side beam (5) and a second telescopic beam (242) which is arranged in the first telescopic beam (241), can move relative to the first telescopic beam (241) and is connected with the other main beam (5); the cross arm (23) comprises a first cross arm (231) connected with one crane arm (101) and a second cross arm (232) which is arranged in the first cross arm (231) and can move relative to the first cross arm (231) and is connected with the other crane arm (101); the third adjusting mechanism comprises a third bidirectional telescopic oil cylinder (63) arranged below the main beam (2), and two movable ends of the third bidirectional telescopic oil cylinder (63) are respectively connected with the cab (102) and the control room (103).
2. The bridge function of the truck crane of claim 1, wherein: the middle part of the auxiliary beam (3) is provided with a detachable reinforcing beam (22) connected with the two matched auxiliary beams (3), and the reinforcing beam (22) is provided with a hanging ring (44) and is connected with a crane boom (101) through a steel wire rope (45).
3. The bridge function of the truck crane of claim 2, wherein: the reinforcing beam (22) comprises a reinforcing beam body (221) and a connecting mechanism arranged on the beam body (221);
The connecting mechanism comprises two mounting plates (222) which are arranged on the beam body (221) and matched with the width of the auxiliary beam (3), and the mounting plates (222) are connected with the auxiliary beam (3) through bolts.
4. The bridge function of the truck crane of claim 1, wherein: the auxiliary cross beam (31), the crane arm (101) face one side of the auxiliary cross beam (31), one side of the crane arm (101) away from the auxiliary cross beam (31) and one side of the vehicle body away from the auxiliary cross beam (31) are respectively provided with a hanging ring (44), and the hanging rings on the auxiliary cross beam (31) and the hanging rings on the side of the crane arm (101) face the auxiliary cross beam (31) are connected through a steel wire rope (45); the suspension loop arranged on one side of the lifting arm (101) back to the auxiliary cross beam (31) is connected with the suspension loop arranged on one side of the vehicle body away from the auxiliary cross beam (31) through a steel wire rope (45).
5. The bridge function of the truck crane of claim 4, wherein: the auxiliary beam (31) comprises an upper beam (311) arranged between the two auxiliary beams (3) and a lower beam (312) arranged below the upper beam (311), and the hanging ring (44) is arranged on the lower beam (312).
6. The bridge function of the truck crane of claim 5, wherein: the steel wire rope (45) is connected with the hanging ring (44) through the hanging hook (46), and a first adjusting mechanism for adjusting the length of the steel wire rope (45) is arranged on the hanging hook (46).
7. The bridge function of the truck crane of claim 6 wherein: the first adjusting mechanism comprises a threaded hole, a screw rod (461) and a screw cap (462), wherein the threaded hole is formed in the hook (46), one end of the screw rod (461) is fixedly connected with the steel wire rope (45), and the other end of the screw rod passes through the threaded hole to be connected with the screw cap (462).
8. The bridge function of the truck crane of claim 1, wherein: at least one auxiliary side beam (51) movably connected with the side beam (5) and a second telescopic oil cylinder for driving the auxiliary side beam (51) to move relative to the side beam (5) are arranged in the side beam (5), the fixed end of the second telescopic oil cylinder is connected with the side beam (5), and the movable end of the second telescopic oil cylinder is connected with the auxiliary side beam (51).
9. Bridge deck for a mobile crane with bridge function according to any one of claims 1 to 8, characterized in that: the bridge deck comprises a frame (71), a first bridge deck (72) and a first fixing mechanism are arranged on the frame (71), the first fixing mechanism comprises two clamping plates (73) which are arranged at a certain distance in parallel, and ventilation holes are uniformly formed in the first bridge deck (72).
10. Railway car for an automobile crane with bridge function according to any one of claims 1 to 8, characterized in that: the vehicle comprises a vehicle frame (81), a second bridge deck (82) arranged above the vehicle frame (81), wheels (83) below the vehicle frame (81) and wheel shafts (84), wherein the wheels (83) are connected through the wheel shafts (84); the wheel (83) comprises an inner wheel (831) and an outer wheel (832) which are coaxially arranged, the inner wheel (831) and the outer wheel (832) can mutually axially slide, and the wheel shaft (84) is also provided with a limiting device; the limiting device comprises a limiting block (91) and a spring (92), wherein the limiting block (91) is arranged on the wheel shaft (84), and the spring (92) is arranged on the wheel shaft (84) between the limiting block (91) and the inner wheel (831).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910943251.6A CN110540142B (en) | 2019-09-30 | 2019-09-30 | Automobile crane with bridge function, bridge plate and rail car |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910943251.6A CN110540142B (en) | 2019-09-30 | 2019-09-30 | Automobile crane with bridge function, bridge plate and rail car |
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| CN110540142B true CN110540142B (en) | 2024-06-21 |
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| AU2022287642A1 (en) * | 2022-11-08 | 2024-05-23 | Go Bungy International Pte. Ltd. | Mobile bungy jump apparatus and method for operating the same |
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| GB191511080A (en) * | 1915-07-30 | 1916-07-31 | Joseph Henry Woodington | Improvements in and relating to Portable Bridges, Landing Stages or the like. |
| CN204780561U (en) * | 2015-07-07 | 2015-11-18 | 徐州工程学院 | Car is laid fast to earthquake emergency rescue mountainous region passageway |
| CN207535621U (en) * | 2017-11-28 | 2018-06-26 | 杭州伊风科技有限公司 | A kind of broad-adjustable wheel hub |
| CN210885019U (en) * | 2019-09-30 | 2020-06-30 | 刘世红 | Automobile crane with bridge function, bridge plate and rail car |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19620511A1 (en) * | 1996-05-22 | 1997-11-27 | Krupp Foerdertechnik Gmbh | Method and apparatus for laying bridge |
| CN101949127A (en) * | 2010-09-29 | 2011-01-19 | 王贵宣 | Movable type rescue auxiliary bridge vehicle |
| CN203713662U (en) * | 2014-01-26 | 2014-07-16 | 于永东 | Full-pavement flat-spanning type emergency and rescue vehicle |
| JP6376444B2 (en) * | 2014-06-05 | 2018-08-22 | 株式会社高知丸高 | Telescopic bridge |
| MD1107Z (en) * | 2016-08-24 | 2017-07-31 | Григоре ЧАПА | Mobile telescopic bridge |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191511080A (en) * | 1915-07-30 | 1916-07-31 | Joseph Henry Woodington | Improvements in and relating to Portable Bridges, Landing Stages or the like. |
| CN204780561U (en) * | 2015-07-07 | 2015-11-18 | 徐州工程学院 | Car is laid fast to earthquake emergency rescue mountainous region passageway |
| CN207535621U (en) * | 2017-11-28 | 2018-06-26 | 杭州伊风科技有限公司 | A kind of broad-adjustable wheel hub |
| CN210885019U (en) * | 2019-09-30 | 2020-06-30 | 刘世红 | Automobile crane with bridge function, bridge plate and rail car |
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