CN113665672A - Box girder transport vehicle capable of achieving accurate synchronous steering - Google Patents
Box girder transport vehicle capable of achieving accurate synchronous steering Download PDFInfo
- Publication number
- CN113665672A CN113665672A CN202111067012.2A CN202111067012A CN113665672A CN 113665672 A CN113665672 A CN 113665672A CN 202111067012 A CN202111067012 A CN 202111067012A CN 113665672 A CN113665672 A CN 113665672A
- Authority
- CN
- China
- Prior art keywords
- steering
- connecting rod
- longitudinal beam
- oil cylinder
- hinged
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
- B62D5/12—Piston and cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Abstract
The invention relates to a box girder transport vehicle capable of realizing accurate synchronous steering, which comprises a frame, a directional wheel, a steering mechanism and a steering wheel, wherein the frame consists of a left longitudinal beam, a middle longitudinal beam, a right longitudinal beam and a cross beam; one vertex of the tripod is hinged on the middle longitudinal beam, and the other two vertexes of the tripod are respectively hinged with one ends of the left steering connecting rod and the right steering connecting rod. The box girder transport vehicle ensures that the steering wheels on the two sides of the middle longitudinal beam rotate at the same angle in a completely synchronous manner, realizes steering, protects the steering mechanism and solves the problem of tire burst caused by inconsistent steering at present.
Description
Technical Field
The invention relates to a box girder transport vehicle, in particular to a box girder transport vehicle capable of accurately and synchronously steering.
Background
The box girder transport vehicle usually needs to bear the weight of dozens of tons, hundreds of tons or even higher tonnage and is used for transporting the prefabricated box girder; in order to ensure that the box girder transport vehicle meets the requirement of high bearing weight, a plurality of wheel axles, more than ten wheel axles and even more than ten wheel axles are usually arranged, and two tires are arranged at two ends of each wheel axle to meet the bearing requirement. The box girder transport vehicle has to have a steering function so as to transport the box girder to a preset hoisting position, and in order to ensure the steering requirement, the wheels at the left and the right sides of the two rows of the front ends of the transport vehicle need to be steered synchronously at the same angle, and the steering requirement within 0 to +/-30 degrees is usually met. However, the existing steering mechanism cannot meet the requirement of high-precision synchronous steering of wheels on the left side and the right side, and the stress of steered tires is inconsistent when the wheels are driven under the condition of asynchronous steering, so that the accident of tire burst is easily caused, the life safety is threatened, and the transportation cost is increased.
Disclosure of Invention
The invention provides a box girder transport vehicle capable of steering accurately and synchronously in order to overcome the defects of the technical problems.
The invention discloses a box girder transport vehicle capable of steering accurately and synchronously, which comprises a vehicle frame, a directional wheel, a steering mechanism and a steering wheel, wherein the vehicle frame consists of a left longitudinal beam, a middle longitudinal beam, a right longitudinal beam and cross beams, the middle longitudinal beam is positioned between the left longitudinal beam and the right longitudinal beam and arranged in parallel, and the left longitudinal beam, the middle longitudinal beam and the right longitudinal beam are connected through a plurality of cross beams; the method is characterized in that: the steering mechanism comprises a left oil cylinder, a right oil cylinder, a left rotary table, a right rotary table, a left steering connecting rod, a right steering connecting rod, a triangular frame and two lintels, wherein the left rotary table and the right rotary table are respectively composed of a rotating part and a fixing part; the triangular frame is a regular triangle, one vertex of the triangular frame is hinged on the middle longitudinal beam, the other two vertexes of the triangular frame are respectively hinged with one ends of the left steering connecting rod and the right steering connecting rod, and the other ends of the left steering connecting rod and the right steering connecting rod are respectively hinged with the rotating part of the rotating disc and the rotating part of the right rotating disc;
the two lintels are respectively positioned below the left turntable and the right turntable and are respectively fixed with the rotating part of the left turntable and the rotating part of the right turntable; steering wheel shafts are fixed at two ends of the two lintels, and steering wheels are fixed at two ends of the steering wheel shafts; when the steering wheel is in a state of facing the dead ahead, the hinge joint of the left turntable and the right turntable, the left oil cylinder and the right oil cylinder, the left steering connecting rod and the right steering connecting rod, the left steering connecting rod and the tripod and the hinge joint of the right steering connecting rod and the tripod are symmetrical along the center line of the middle longitudinal beam.
According to the box girder transport vehicle capable of steering accurately and synchronously, the left oil cylinder and the left steering connecting rod are in a crossed state, and the right oil cylinder and the right steering connecting rod are in a crossed state.
According to the box girder transport vehicle capable of realizing accurate synchronous steering, the left oil cylinder and the right oil cylinder drive the steering wheel to rotate by an angle ranging from-30 degrees to +30 degrees through the left turntable and the right turntable.
According to the box girder transport vehicle capable of steering accurately and synchronously, the rotating part of the left turntable is fixedly provided with the first connecting rod and the second connecting rod which are vertically upward, the first connecting rod is hinged with the telescopic rod of the left oil cylinder, and the second connecting rod is hinged with the left steering connecting rod; a third connecting rod and a fourth connecting rod which are vertically upward are fixed on the rotating part of the right turntable, the telescopic rod of the right oil cylinder is hinged on the third connecting rod, and the fourth connecting rod is hinged with the right steering connecting rod; the top end of the tripod is hinged to the middle longitudinal beam through a fifth connecting rod.
According to the box girder transport vehicle capable of steering accurately and synchronously, a plurality of directional wheel shafts are fixed on the left longitudinal beam and the right longitudinal beam behind the steering mechanism, and directional wheels are fixed at two ends of each directional wheel shaft.
The invention has the beneficial effects that: the invention relates to a box girder transport vehicle with accurate synchronous steering, which is provided with a frame consisting of a left longitudinal beam, a middle longitudinal beam, a right longitudinal beam and a cross beam, and a steering mechanism consisting of a left oil cylinder, a right oil cylinder, a left rotating disc, a right rotating disc, a left steering connecting rod, a right steering connecting rod, a lintel and a tripod is arranged on the frame, the left oil cylinder and the right oil cylinder are respectively articulated with the rotating parts of the middle longitudinal beam and the left rotating disc, the left steering connecting rod and the right steering connecting rod are respectively articulated with the rotating parts of the tripod and the left rotating disc, so that a state that the left rotating disc and the right rotating disc, the left oil cylinder and the right oil cylinder, the left steering connecting rod and the right steering connecting rod and the left and right parts of the tripod are symmetrical along the center line of the middle longitudinal beam is formed, when the left oil cylinder and the right oil cylinder respectively drive the left rotating disc and the right rotating disc to rotate in the same direction, the complete synchronization and the rotation of the same angle of the steering wheels at two sides of the middle longitudinal beam are ensured, not only the steering is realized, but also the protection of the steering mechanism is realized, the problem of "flat tire" that easily causes because turn to inconsistently at present is solved, and beneficial effect is showing, is suitable for application and popularization.
Drawings
FIG. 1 is a front view of a precision synchro-steered box girder transport vehicle of the present invention;
FIG. 2 is a rear view of the precision synchro-steered box girder transport vehicle of the present invention;
FIG. 3 is a top plan view of the precision synchro-steered box girder transport vehicle of the present invention;
FIG. 4 is a bottom view of the precision synchro-steered box girder transport vehicle of the present invention;
FIG. 5 is a perspective view of the precision synchro-steered box girder transport vehicle of the present invention;
FIG. 6 is a perspective view of the precision synchro-steered box girder transport vehicle of the present invention with the directional wheels and steerable wheels removed;
FIG. 7 is a front view of the steering mechanism of the present invention;
fig. 8 and 9 are perspective views of the steering mechanism of the present invention.
In the figure: 1 frame, 2 left longitudinal beams, 3 middle longitudinal beams, 4 right longitudinal beams, 5 cross beams, 6 directional wheels, 7 steering wheels, 8 left oil cylinders, 9 right oil cylinders, 10 left rotary tables, 11 right rotary tables, 12 left steering connecting rods, 13 right steering connecting rods, 14 lintels, 15 steering wheel shafts, 16 directional wheel shafts, 17 tripods, 18 first connecting rods, 19 second connecting rods, 20 third connecting rods, 21 fourth connecting rods, 22 fifth connecting rods and 23 lug plates.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in fig. 1 to 5, a front view, a rear view, a top view, a bottom view and a perspective view of the box girder transportation vehicle with precise synchronous steering according to the present invention are respectively given, the box girder transportation vehicle shown in the figures is composed of a vehicle frame 1, a steering mechanism, a directional wheel 6 and a steering wheel 7, the vehicle frame 1 plays a role in fixing and supporting, the steering mechanism is arranged at the front end of the vehicle frame 1 and is used for driving the steering wheel 7 to rotate so as to realize a steering function, and the directional wheel 6 is located at the rear end of the steering mechanism. The frame 1 shown consists of a left longitudinal beam 2, a middle longitudinal beam 3, a right longitudinal beam 4 and a plurality of cross beams 5, wherein the left longitudinal beam 2, the middle longitudinal beam 3 and the right longitudinal beam 4 are arranged in parallel, the middle longitudinal beam 3 is positioned between the left longitudinal beam 2 and the right longitudinal beam 4, and the left longitudinal beam 2, the middle longitudinal beam 3 and the right longitudinal beam 4 are connected with the cross beams 5 which are vertical to the left longitudinal beam, so that the stable frame 1 is formed.
As shown in fig. 6, a perspective view of the precisely synchronously steered box girder transport vehicle of the present invention with the directional wheels and the steered wheels removed is shown, fig. 7 is a front view of the steering mechanism of the present invention, fig. 8 and 9 are perspective views of the steering mechanism composed of a left cylinder 8, a right cylinder 9, a left turn plate 10, a right turn plate 11, a left steering link 12, a right steering link 13, a lintel 14 and a steering wheel shaft 15, and both the left turn plate 10 and the right turn plate 11 are composed of a rotating part and a fixed part. The left rotating disk 10 is positioned below the left longitudinal beam 2, the fixing part of the left rotating disk 10 is fixed on the left longitudinal beam 2, and the fixing part of the right rotating disk 11 is fixed on the right longitudinal beam 4. The tripod 17 is in the shape of a regular triangle, one vertex angle of which is directed backwards and is hinged to the middle longitudinal beam 3 via a fifth connecting rod 22.
A first connecting rod 18 and a second connecting rod 19 which are vertically upward are fixed on the left rotary disc 10, the first connecting rod 18 is positioned in front of the second connecting rod 19, the cylinder body of the left oil cylinder 8 is hinged on the middle longitudinal beam 3, the telescopic rod of the left oil cylinder 8 is hinged on the first connecting rod 18, one end of the left steering connecting rod 12 is hinged with the second connecting rod 19, and the other end of the left steering connecting rod is hinged on a vertex angle of the tripod 17. A third connecting rod 20 and a fourth connecting rod 21 which are vertically upward are fixed on the right rotary table 11, the third connecting rod 20 is positioned in front of the fourth connecting rod 21, the cylinder body of the right oil cylinder 9 is hinged on the middle longitudinal beam 3, the telescopic rod of the right oil cylinder 9 is hinged on the third connecting rod 20, one end of the right steering connecting rod 13 is hinged on the fourth connecting rod 21, and the other end is hinged on a vertex angle of the tripod 17. Looking down from the upper part of the vehicle frame 1, the left oil cylinder 8 and the left steering connecting rod 12, the right oil cylinder 9 and the right steering connecting rod 13 are in a cross state.
The lintel 14 is arranged below the left rotary disc 10 and the right rotary disc 11, and the lintel 14 is fixed on the rotating parts of the left rotary disc 10 and the right rotary disc 11, so that the lintel 14 can be driven to synchronously rotate in the process that the rotating parts of the left rotary disc 10 and the right rotary disc 11 are driven to rotate by the left oil cylinder 8 and the right oil cylinder 9. Steering wheel shafts 15 are fixed to both ends of the illustrated lintel 14, and steering wheels 7 are fixed to both ends of the steering wheel shafts 15. When the steering wheel 7 is in a state of facing right ahead (namely, a forward position), the length direction of the illustrated lintel 14 is parallel to the length direction of the frame 1, and the hinged part of the left steering wheel 10 and the right steering wheel 11, the hinged part of the left oil cylinder 8 and the right oil cylinder 9, the hinged part of the left steering connecting rod 12 and the right steering connecting rod 13, the hinged part of the left steering connecting rod 12 and the tripod 17 and the connected part of the right steering connecting rod 13 and the tripod 17 are symmetrical relative to the bus of the middle longitudinal beam 3, so that the left oil cylinder 8 and the right oil cylinder 9 can drive the steering wheels 7 on two sides to perform accurate synchronous and same-angle steering.
The lower surfaces of the left longitudinal beam 2 and the right longitudinal beam 4 behind the steering mechanism are respectively fixed with a plurality of directional wheel shafts 16, two ends of each directional wheel shaft 16 are respectively fixed with a directional wheel 6, and the bearing capacity of the whole frame 1 is ensured by a certain number of directional wheels 6 and steering wheels 7. The lintel 14 is shown fixedly connected to the turning parts on the left and right turntables 10, 11 via the ear plates 23. The left oil cylinder 8 and the right oil cylinder 9 drive the steering wheel 7 to rotate by an angle ranging from-30 degrees to +30 degrees through the left turntable 10 and the right turntable 11.
The steering principle of the box girder transport vehicle provided by the invention is as follows: as shown in fig. 7, if the steering wheel 7 is oriented to the right ahead in the initial state, if the right steering is to be performed, the telescopic rod of the left oil cylinder 8 is controlled to extend, the telescopic rod of the right oil cylinder 9 is controlled to retract, and at this time, under the combined action of the left oil cylinder 8, the right oil cylinder 9, the left steering connecting rod 12 and the right steering connecting rod 13, the rotating portions on the left turntable 10 and the right turntable 11 are both driven to rotate counterclockwise, so as to drive the lintel 14 to rotate counterclockwise, and finally, the steering wheel 7 is driven to rotate, so that the steering is realized. When the transport vehicle needs to turn left, the telescopic rod of the left oil cylinder 8 needs to be controlled to retract, and the telescopic rod of the right oil cylinder 9 needs to be controlled to extend.
Claims (5)
1. A box girder transport vehicle capable of steering accurately and synchronously comprises a vehicle frame (1), a directional wheel (6), a steering mechanism and a steering wheel (7), wherein the vehicle frame is composed of a left longitudinal beam (2), a middle longitudinal beam (3), a right longitudinal beam (4) and cross beams (5), the middle longitudinal beam is positioned between the left longitudinal beam and the right longitudinal beam and arranged in parallel, and the left longitudinal beam, the middle longitudinal beam and the right longitudinal beam are connected through a plurality of cross beams; the method is characterized in that: the steering mechanism comprises a left oil cylinder (8), a right oil cylinder (9), a left steering wheel (10), a right steering wheel (11), a left steering connecting rod (12), a right steering connecting rod (13), a tripod (17) and two lintels (14), wherein the left steering wheel and the right steering wheel are respectively composed of a rotating part and a fixing part, the fixing parts of the left steering wheel and the right steering wheel are respectively fixed below the left longitudinal beam and the right longitudinal beam, the cylinder body and the telescopic rod of the left oil cylinder are respectively hinged on the rotating parts of the middle longitudinal beam and the left steering wheel, and the cylinder body and the telescopic rod of the right oil cylinder are respectively hinged on the rotating parts of the middle longitudinal beam and the right steering wheel; the triangular frame is a regular triangle, one vertex of the triangular frame is hinged on the middle longitudinal beam, the other two vertexes of the triangular frame are respectively hinged with one ends of the left steering connecting rod and the right steering connecting rod, and the other ends of the left steering connecting rod and the right steering connecting rod are respectively hinged with the rotating part of the rotating disc and the rotating part of the right rotating disc;
the two lintels are respectively positioned below the left turntable and the right turntable and are respectively fixed with the rotating part of the left turntable and the rotating part of the right turntable; steering wheel shafts (15) are fixed at two ends of the two lintels, and steering wheels (7) are fixed at two ends of the steering wheel shafts; when the steering wheel is in a state of facing the dead ahead, the hinge joint of the left turntable and the right turntable, the left oil cylinder and the right oil cylinder, the left steering connecting rod and the right steering connecting rod, the left steering connecting rod and the tripod and the hinge joint of the right steering connecting rod and the tripod are symmetrical along the center line of the middle longitudinal beam.
2. The box girder transport vehicle with precise synchronous steering according to claim 1, characterized in that: looking down along the upper part of the frame (1), the left oil cylinder (8) and the left steering connecting rod (12) are in a crossed state, and the right oil cylinder (9) and the right steering connecting rod (13) are in a crossed state.
3. The box girder transport vehicle with accurate synchronous steering according to claim 1 or 2, wherein: the left oil cylinder (8) and the right oil cylinder (9) drive the turning angle range of the turning wheel (7) to be-30 degrees to +30 degrees through the left turning disc (10) and the right turning disc (11).
4. The box girder transport vehicle with accurate synchronous steering according to claim 1 or 2, wherein: a first connecting rod (18) and a second connecting rod (19) which are vertically upward are fixed on the rotating part of the left turntable (10), the first connecting rod is hinged with a telescopic rod of the left oil cylinder (8), and the second connecting rod is hinged with a left steering connecting rod; a third connecting rod (20) and a fourth connecting rod (21) which are vertically upward are fixed on the rotating part of the right turntable (11), the telescopic rod of the right oil cylinder (9) is hinged on the third connecting rod, and the fourth connecting rod is hinged with the right steering connecting rod; the top end of the tripod (17) is hinged to the middle longitudinal beam (3) through a fifth connecting rod (22).
5. The box girder transport vehicle with accurate synchronous steering according to claim 1 or 2, wherein: a plurality of directional wheel shafts (16) are fixed on the left longitudinal beam (2) and the right longitudinal beam (4) behind the steering mechanism, and directional wheels (6) are fixed at two ends of each directional wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067012.2A CN113665672A (en) | 2021-09-13 | 2021-09-13 | Box girder transport vehicle capable of achieving accurate synchronous steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111067012.2A CN113665672A (en) | 2021-09-13 | 2021-09-13 | Box girder transport vehicle capable of achieving accurate synchronous steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113665672A true CN113665672A (en) | 2021-11-19 |
Family
ID=78549139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111067012.2A Pending CN113665672A (en) | 2021-09-13 | 2021-09-13 | Box girder transport vehicle capable of achieving accurate synchronous steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113665672A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5769180A (en) * | 1995-10-20 | 1998-06-23 | Fuji Jukogyo Kabushiki Kaisha | Steering system for working vehicle and the method thereof |
| FR2809356A1 (en) * | 2000-05-26 | 2001-11-30 | Vincent Chambon | Wheel assembly for agricultural trailer has hydraulic cylinders to move wheels to rearward position during tilting of trailer |
| WO2008067926A1 (en) * | 2006-12-07 | 2008-06-12 | Goldhofer Aktiengesellschaft | Vehicle |
| US20090273159A1 (en) * | 2007-05-05 | 2009-11-05 | American Heavy Moving and Rigging, Inc. | Dual lane multi-axle transport vehicle |
| CN102351008A (en) * | 2011-07-31 | 2012-02-15 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Symmetrical four-link steering assembly for front axle of large-size mining dumper |
| CN102501899A (en) * | 2011-11-18 | 2012-06-20 | 三一重型装备有限公司 | Disconnection type steering mechanism and mine tipper |
| CN206841511U (en) * | 2017-03-17 | 2018-01-05 | 苏州大学应用技术学院 | adjustable oil cylinder connecting rod steering mechanism |
| CN111247055A (en) * | 2017-12-25 | 2020-06-05 | 株式会社久保田 | Working vehicle |
-
2021
- 2021-09-13 CN CN202111067012.2A patent/CN113665672A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5769180A (en) * | 1995-10-20 | 1998-06-23 | Fuji Jukogyo Kabushiki Kaisha | Steering system for working vehicle and the method thereof |
| FR2809356A1 (en) * | 2000-05-26 | 2001-11-30 | Vincent Chambon | Wheel assembly for agricultural trailer has hydraulic cylinders to move wheels to rearward position during tilting of trailer |
| WO2008067926A1 (en) * | 2006-12-07 | 2008-06-12 | Goldhofer Aktiengesellschaft | Vehicle |
| US20090273159A1 (en) * | 2007-05-05 | 2009-11-05 | American Heavy Moving and Rigging, Inc. | Dual lane multi-axle transport vehicle |
| CN102351008A (en) * | 2011-07-31 | 2012-02-15 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Symmetrical four-link steering assembly for front axle of large-size mining dumper |
| CN102501899A (en) * | 2011-11-18 | 2012-06-20 | 三一重型装备有限公司 | Disconnection type steering mechanism and mine tipper |
| CN206841511U (en) * | 2017-03-17 | 2018-01-05 | 苏州大学应用技术学院 | adjustable oil cylinder connecting rod steering mechanism |
| CN111247055A (en) * | 2017-12-25 | 2020-06-05 | 株式会社久保田 | Working vehicle |
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