CN112477902A - Folding type cab apron device - Google Patents
Folding type cab apron device Download PDFInfo
- Publication number
- CN112477902A CN112477902A CN202011490960.2A CN202011490960A CN112477902A CN 112477902 A CN112477902 A CN 112477902A CN 202011490960 A CN202011490960 A CN 202011490960A CN 112477902 A CN112477902 A CN 112477902A
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- cab apron
- main
- auxiliary
- pin shaft
- hydraulic cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D47/00—Loading or unloading devices combined with vehicles, e.g. loading platforms, doors convertible into loading and unloading ramps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D3/00—Wagons or vans
- B61D3/16—Wagons or vans adapted for carrying special loads
- B61D3/18—Wagons or vans adapted for carrying special loads for vehicles
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a folding type cab apron device which comprises a main cab apron 1, an auxiliary cab apron 2, a main cab apron hydraulic cylinder 5, an auxiliary cab apron hydraulic cylinder 7, a universal coupling 8, a folding mechanism driving rod 10, a folding mechanism connecting rod 11, a rotary carrying platform 12 and a pin shaft. The folding cab apron device has compact structure and small occupied space, can realize complete folding, and can bear larger load.
Description
Technical Field
The invention relates to a foldable cab apron device applied to a transportation bearing platform.
Background
The ferry plate commonly used in the auxiliary vehicle loading operation is also called as a ladder stand and a gangway. Currently, ferry plate mechanisms are commonly used in several situations: the auxiliary ferry plate is used for a car transportation vehicle to assist a large amount of consignment work of the car; a cab ladder arrangement for a low flatbed truck to assist in the shipment of some construction equipment; a gangway device for low-flat small vehicles to assist in small consignment operations; the folding cab apron is used for a railway flat car to realize the carrying task of an engineering vehicle during railway construction and repair; the platform is used for railway carrying flat cars to realize a large amount of transportation operation of tank troops.
To save space and be portable, folding ferry boards have become a research and application hotspot in the field. However, the folding ferry plate in the prior art has many disadvantages, such as that a complicated mechanical structure is required for realizing the folding action, or the folding ferry plate occupies the upper space of the flat car when being folded, reduces the transportation amount of the carrying flat car, and can realize the loading task only by a special slope platform. In addition, the bearing capacity is a difficulty which restricts the application of the folding type cab apron. Therefore, a long cab apron which can be completely folded, occupies a small space, does not affect the carrying of other cargos when being folded and zoomed, and can bear larger load is needed to solve the technical problems.
Disclosure of Invention
The invention aims to provide a cab apron device of a transport bearing platform, which has high automation degree and can realize complete folding.
The utility model provides a foldable cab apron device, includes main cab apron 1, assists cab apron 2, its characterized in that: the four-bar mechanism is composed of a folding mechanism active rod 10, a folding mechanism connecting rod 11, a main cab apron 1 and an auxiliary cab apron 2, and is driven by an auxiliary cab apron hydraulic cylinder 7; one end of the main cab apron 1 is hinged on a rotary carrying platform 12 through a B-shaped pin shaft, and the rotary carrying platform 12 is arranged on a transport vehicle and can rotate 90 degrees; the other end of the main cab apron 1 is hinged with the auxiliary cab apron 2 through a pin shaft II 4; a main cab apron hydraulic cylinder 5 and an auxiliary cab apron hydraulic cylinder 7 are arranged below the main cab apron 1; one end of the main cab apron hydraulic cylinder 5 is fixed on the rotary carrying platform 12 through a pin shaft I3, and the piston rod ends of the main cab apron hydraulic cylinder are hinged to the middle part of the main cab apron 1 through pin shafts III 6; one end of the auxiliary cab apron hydraulic cylinder 7 is also hinged on the main cab apron 1 through a pin shaft III 6, and the piston rod end of the auxiliary cab apron hydraulic cylinder is connected with a universal coupling 8 and is connected with a folding mechanism driving rod 10 and a folding mechanism connecting rod 11 at the same point through a pin shaft IV 9 and a split pin thereof; the other ends of the folding mechanism driving rod 10 and the folding mechanism connecting rod 11 are respectively hinged to the middle parts of the main transition plate 1 and the auxiliary transition plate 2 through pin shafts III 6.
Furthermore, the main cab apron 1 and the auxiliary cab apron 2 adopt a fence structure, and the fence structure is formed by welding rectangular square steel in a transverse and vertical staggered manner.
Furthermore, the transverse square steel of the fence structure is dense in the middle of the main transition plate 1 and the auxiliary transition plate 2, and sparse at the two ends.
Furthermore, a cover plate with a flat surface is arranged above the fence.
Further, in the four-bar mechanism composed of the folding mechanism driving rod 10, the folding mechanism connecting rod 11, the main transition plate 1 and the auxiliary transition plate 2, the length of the folding mechanism driving rod 10 is a, the length of the folding mechanism connecting rod 11 is b, the vertical distance from the hinge point of the folding mechanism connecting rod 11 on the auxiliary transition plate 2 to the pin shaft II 4 is c, the vertical distance from the hinge point of the folding mechanism driving rod 10 on the main transition plate 1 to the pin shaft II 4 is d, and a + d is b + c.
The four-bar mechanism can also be transformed into a right-angled triangle structure.
The utility model provides a foldable cab apron device, includes main cab apron 1, assists cab apron 2, its characterized in that: the four-bar mechanism is composed of a triangular connecting rod 15, a main cab apron 1 and an auxiliary cab apron 2 and is driven by an auxiliary cab apron hydraulic cylinder 7; one end of the main cab apron 1 is hinged on a rotary carrying platform 12 through a B-shaped pin shaft, and the rotary carrying platform 12 is arranged on a transport vehicle and can rotate 90 degrees; the other end of the main cab apron 1 is provided with a slide block track 16 and is hinged with the auxiliary cab apron 2 through a pin shaft II 4; a main cab apron hydraulic cylinder 5 and an auxiliary cab apron hydraulic cylinder 7 are arranged below the main cab apron 1; one end of the main cab apron hydraulic cylinder 5 is fixed on the rotary carrying platform 12 through a pin shaft I3, and the piston rod ends of the main cab apron hydraulic cylinder are hinged to the middle part of the main cab apron 1 through pin shafts III 6; one end of the auxiliary cab apron hydraulic cylinder 7 is also hinged on the main cab apron 1 through a pin shaft III 6, and the piston rod end of the auxiliary cab apron hydraulic cylinder is hinged with one end of a triangular connecting rod 15; the right-angle end of the triangular connecting rod 15 is hinged with a sliding block 17 through a pin shaft, and the sliding block 17 can be embedded in a sliding block track 16 and can freely slide; the triangular connecting rod 15 is fixed with the auxiliary cab apron 2 through a connecting rod hinge point 18.
Further, the length ratio of the long right-angle side to the short right-angle side of the triangular connecting rod 15 is 4: 1-6: 1, the triangle-shaped apex angle of connecting rod pin joint 18 department is 25 ~ 30.
Furthermore, the slide rail 16 and the auxiliary transition plate 2 are hinged to the pin II 4 via a hinge I19 cooperating with the hinge II 20.
Further, the pin shaft I3, the pin shaft II 4, the pin shaft III 6 and the pin shaft IV 9 are B-shaped pin shafts.
For the auxiliary cab apron is folded downwards and is folded upwards, the folding mechanism can be structurally prevented from influencing the surface and the side surface of the cab apron, and the phenomenon of super-width in the loading and transporting process can be avoided. The downward folding has the contradiction between the placing problem of the folding mechanism and the folding angle, and the folding mechanism needs to be placed on the side surface of the cab apron when the folding angle reaches 0 degree, so that the folding mechanism can interfere and collide with other objects in the railway transportation process. The technical scheme of the invention is an improvement aiming at the technical problems, namely, the folding mechanism is arranged below the cab apron, and the folding angle of the cab apron can be minimized through one-time downward folding of the four-bar mechanism, so that the complete folding is realized.
The invention adopts the lower support, has compact structure, does not occupy the space of the carrying platform of the transport vehicle, and realizes the maximum utilization of the space structure.
The cab apron provided by the invention adopts a special fence type structure, the rib positions and the rib forms of the cab apron are optimally designed, and the integral light weight of the cab apron is realized. The fence type structure of the ferry plate can be formed by welding 90x 90Q 450 rectangular steel, and a flat cover plate is arranged on the fence type structure, so that the integral rigidity of the ferry plate can be increased, and the deformation can be reduced. Therefore, the cab apron can bear larger force under the condition of using as little material as possible and having lighter weight, and the whole cab apron bears larger load and has smaller deformation.
Drawings
Fig. 1 is a bottom view of a folding ferry plate device according to embodiment 1 of the present invention.
Fig. 2 is a folded view of the device of the present invention mounted on a railway flat car.
Fig. 3 is a diagram showing the working state of the device of the invention mounted on a railway flat car.
Fig. 4 is a bottom view of two sets of folding ferry plate devices according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural diagram of a folding ferry plate device according to embodiment 2 of the present invention.
Fig. 6 is a bottom view of the folding ferry plate device according to embodiment 2 of the present invention.
Fig. 7 is a schematic structural diagram of two groups of folding ferry plate devices according to embodiment 2 of the present invention.
Fig. 8 is a bottom view of two sets of foldable ferry plate devices according to embodiment 2 of the present invention.
Fig. 9 is a schematic diagram of the folding mechanism of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings:
in the drawings of the present application:
the device comprises a main cab apron 1, an auxiliary cab apron 2, a pin shaft I3, a pin shaft II 4, a main cab apron hydraulic cylinder 5, a pin shaft III 6, an auxiliary cab apron hydraulic cylinder 7, a universal coupling 8, a pin shaft IV 9, a folding mechanism driving rod 10, a folding mechanism connecting rod 11, a rotary carrying platform 12, a railway flatcar 13, a rail 14, a triangular connecting rod 15, a sliding block track 16, a sliding block 17, a connecting rod hinged point 18, a hinge I19 and a hinge II 20.
Example 1
As shown in fig. 1, one end of the main ferry plate 1 is hinged to the rotary carrying platform 12 through a B-shaped pin shaft and an opening pin, and the other end is hinged to the auxiliary ferry plate 2 through a pin shaft II 4. A main cab apron hydraulic cylinder 5 and an auxiliary cab apron hydraulic cylinder 7 are arranged below the main cab apron 1. Piston rod ends of the auxiliary cab apron hydraulic cylinder 7 and the main cab apron hydraulic cylinder 5 are hinged to the middle part of the main cab apron 1 through a pin shaft III 6. The other end of the main cab apron hydraulic cylinder 5 is fixed on the rotary carrying platform 12 through a pin shaft I3 and is used for controlling the deflection angle of the main cab apron 1; the piston rod end of the auxiliary cab apron hydraulic cylinder 7 is connected with the universal coupling 8 and is connected with the folding mechanism driving rod 10 and the folding mechanism connecting rod 11 at the same point through a pin shaft IV 9 and a split pin thereof. The other ends of the folding mechanism driving rod 10 and the folding mechanism connecting rod 11 are respectively hinged to the middle parts of the main transition plate 1 and the auxiliary transition plate 2 through pin shafts III 6.
As shown in fig. 2, a rotary carrier platform 12 and a folding ferry plate arrangement as described herein are mounted on a railway 13 flat car. In the non-working state, the auxiliary ferry plate 2 is completely and parallelly folded below the main ferry plate 1. In operation, the rotary carrier platform 12 is first rotated 90 degrees to be perpendicular to the direction of extension of the rails 14. Then, the auxiliary cab apron hydraulic cylinder 7 pushes the folding mechanism driving rod 10 to rotate around the pin shaft IV 9 and drive the folding mechanism connecting rod 11. The auxiliary cab apron 2 is gradually extended around the pin shaft II 4 under the pushing of the connecting rod 11 of the folding mechanism until being connected with the main cab apron 1 to form a straight line. At this time, the plane where the main transition plate 1 and the auxiliary transition plate 2 are located is perpendicular to the extending direction of the rail 14. Under the pulling of the main cab apron hydraulic cylinder 5, the main cab apron 1 and the auxiliary cab apron 2 move downwards around the pin shaft I3 to form an acute angle with the ground as shown in figure 3 until the auxiliary cab apron 2 contacts the ground.
The folding and the retraction of the cab apron are the reverse process of the unfolding process. Firstly, under the pushing of the main cab apron hydraulic cylinder 5, the main cab apron 1 and the auxiliary cab apron 2 gradually leave the ground until the main cab apron and the auxiliary cab apron are connected into a straight line and parallel to the ground. Then, the auxiliary cab apron hydraulic cylinder 7 pulls the folding mechanism driving rod 10 to drive the folding mechanism connecting rod 11 and the auxiliary cab apron 2 to be gradually folded towards the lower part of the main cab apron 1 until the folding mechanism connecting rod and the auxiliary cab apron 2 are completely hidden under the main cab apron 1 (the folding angle reaches 0 degree). Thereafter, the slewing carrier platform 12 is rotated 90 degrees from a position perpendicular to the direction in which the rails 14 extend to a position substantially parallel thereto.
As shown in fig. 4, the folding ferry plate assembly can be mounted 1-3 sets on the rotary carrier platform 12 as needed to transport the load-carrying vehicle.
Example 2
As shown in fig. 5, the folding ferry plate device, the main ferry plate 1 is attached to the rotary carrier platform 12 in the same manner as in embodiment 1. The other end of the main ferry plate 1 is provided with a slide block track 16, and a hinge matched with the auxiliary ferry plate 2 and a hinge II 20 for use is hinged on a pin shaft II 4 through a hinge I19. The piston rod end of the auxiliary cab apron hydraulic cylinder 7 is hinged with one end of a triangular connecting rod 15 through a pin shaft IV 9 and a split pin thereof. The triangular link 15 is a right triangle as shown in fig. 5, with a ratio of the length of the long right-angle side to the short right-angle side of 4:6 and a vertex angle at the link hinge point 18 of 30 °. The right-angle end of the triangular connecting rod 15 is hinged with a sliding block 17 through a pin shaft, and the sliding block 17 can be embedded in a sliding block track 16 and can freely slide. The triangular connecting rod 15 is fixed with the auxiliary cab apron 2 through a connecting rod hinge point 18.
In operation, the rotary carrier platform 12 is first rotated 90 degrees to be perpendicular to the direction of extension of the rails 14. Then, the auxiliary cab apron hydraulic cylinder 7 pushes the triangular connecting rod 15 and the sliding block 17 on the triangular connecting rod to slide in the sliding block track 16, and simultaneously, the vertex angle end (namely the connecting rod hinge point 18) of the triangular connecting rod 15 also pushes the auxiliary cab apron 2 out until the auxiliary cab apron 2 is connected with the main cab apron 1 into a whole and is positioned on the same plane. At this time, the plane where the main transition plate 1 and the auxiliary transition plate 2 are located is perpendicular to the extending direction of the rail 14. Under the pulling of the main cab apron hydraulic cylinder 5, the main cab apron 1 and the auxiliary cab apron 2 move downwards around the pin shaft I3 to form a slope surface as shown in figure 7 with the ground until the auxiliary cab apron 2 contacts the ground.
Depending on the requirements of the transport carriage, the folding ferry plate arrangement described above can be mounted 2 sets on the rotary carrier platform 12 in the manner shown in fig. 7-8.
The foregoing is a detailed description of the embodiments of the invention, rather than a detailed description of the invention, and it will be appreciated by those skilled in the art that various modifications, additions and substitutions can be made to the embodiments described without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a foldable cab apron device, includes main cab apron (1), assists cab apron (2), its characterized in that: the folding mechanism comprises a four-bar mechanism consisting of a folding mechanism driving rod (10), a folding mechanism connecting rod (11), a main cab apron (1) and an auxiliary cab apron (2), wherein the four-bar mechanism is driven by an auxiliary cab apron hydraulic cylinder (7); one end of the main cab apron (1) is hinged on a rotary carrying platform (12) through a B-shaped pin shaft, and the rotary carrying platform (12) is arranged on a transport vehicle and can rotate 90 degrees; the other end of the main cab apron (1) is hinged with the auxiliary cab apron (2) through a pin shaft II (4); a main cab apron hydraulic cylinder (5) and an auxiliary cab apron hydraulic cylinder (7) are arranged below the main cab apron (1); one end of a main cab apron hydraulic cylinder (5) is fixed on a rotary carrying platform (12) through a pin shaft I (3), and the piston rod ends of the main cab apron hydraulic cylinder are hinged to the middle part of the main cab apron (1) through pin shafts III (6); one end of the auxiliary cab apron hydraulic cylinder (7) is also hinged on the main cab apron (1) through a pin shaft III (6), and the piston rod end of the auxiliary cab apron hydraulic cylinder is connected with a universal coupling (8) and is connected with a folding mechanism driving rod (10) and a folding mechanism connecting rod (11) at the same point through a pin shaft IV (9) and a split pin thereof; the other ends of the folding mechanism driving rod (10) and the folding mechanism connecting rod (11) are respectively hinged to the middle parts of the main transition plate (1) and the auxiliary transition plate (2) through pin shafts III (6).
2. The folding ferry plate apparatus of claim 1, wherein: the main transition plate (1) and the auxiliary transition plate (2) adopt a fence structure, and the fence structure is formed by welding rectangular square steel in a transverse and vertical staggered manner.
3. The folding ferry plate apparatus of claim 2, wherein: the transverse square steel of the fence structure is dense in the middle of the main transition plate (1) and the auxiliary transition plate (2) and sparse at the two ends.
4. The folding ferry plate apparatus of claim 2, wherein: and a cover plate with a smooth surface is arranged above the fence.
5. The folding ferry plate apparatus of any of claims 1-4, wherein: in the four-bar mechanism formed by the folding mechanism driving rod (10), the folding mechanism connecting rod (11), the main transition plate (1) and the auxiliary transition plate (2), the length of the folding mechanism driving rod (10) is a, the length of the folding mechanism connecting rod (11) is b, the vertical distance from the hinge point of the folding mechanism connecting rod (11) on the auxiliary transition plate (2) to the pin shaft II (4) is c, the vertical distance from the hinge point of the folding mechanism driving rod (10) on the main transition plate (1) to the pin shaft II (4) is d, and a + d is b + c.
6. The utility model provides a foldable cab apron device, includes main cab apron (1), assists cab apron (2), its characterized in that: the four-bar mechanism is composed of a triangular connecting bar (15), a main transition plate (1) and an auxiliary transition plate (2), and is driven by an auxiliary transition plate hydraulic cylinder (7); one end of the main cab apron (1) is hinged on a rotary carrying platform (12) through a B-shaped pin shaft, and the rotary carrying platform (12) is arranged on a transport vehicle and can rotate 90 degrees; the other end of the main cab apron (1) is provided with a slide block track (16) and is hinged with the auxiliary cab apron (2) through a pin shaft II (4); a main cab apron hydraulic cylinder (5) and an auxiliary cab apron hydraulic cylinder (7) are arranged below the main cab apron (1); one end of a main cab apron hydraulic cylinder (5) is fixed on a rotary carrying platform (12) through a pin shaft I (3), and the piston rod ends of the main cab apron hydraulic cylinder are hinged to the middle part of the main cab apron (1) through pin shafts III (6); one end of the auxiliary cab apron hydraulic cylinder (7) is also hinged on the main cab apron (1) through a pin shaft III (6), and the piston rod end of the auxiliary cab apron hydraulic cylinder is hinged with one end of a triangular connecting rod (15); the right-angle end of the triangular connecting rod (15) is hinged with a sliding block (17) through a pin shaft, and the sliding block (17) can be embedded in a sliding block track (16) and can freely slide; the triangular connecting rod (15) is fixed with the auxiliary cab apron (2) through a connecting rod hinge point (18).
7. The folding ferry plate apparatus of claim 6, wherein: the length ratio of the long right-angle side to the short right-angle side of the triangular connecting rod (15) is 4:6, and the vertex angle of the triangle at the connecting rod hinge point (18) is 25-30 degrees.
8. The folding ferry plate apparatus of claim 6 or 7, wherein: the sliding block track (16) and the auxiliary ferry plate (2) are hinged on the pin shaft II (4) through a hinge I (19) and a hinge II (20) which are used in a matched mode.
9. The folding ferry plate apparatus of any of claims 1-8, wherein: and the pin shaft I (3), the pin shaft II (4), the pin shaft III (6) and the pin shaft IV (9) are B-shaped pin shafts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490960.2A CN112477902A (en) | 2020-12-17 | 2020-12-17 | Folding type cab apron device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490960.2A CN112477902A (en) | 2020-12-17 | 2020-12-17 | Folding type cab apron device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112477902A true CN112477902A (en) | 2021-03-12 |
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ID=74916490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011490960.2A Pending CN112477902A (en) | 2020-12-17 | 2020-12-17 | Folding type cab apron device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112477902A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704709A (en) * | 2022-03-30 | 2022-07-05 | 长江地球物理探测（武汉）有限公司 | Pipeline endoscope detection and tracing device |
-
2020
- 2020-12-17 CN CN202011490960.2A patent/CN112477902A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704709A (en) * | 2022-03-30 | 2022-07-05 | 长江地球物理探测（武汉）有限公司 | Pipeline endoscope detection and tracing device |
| CN114704709B (en) * | 2022-03-30 | 2024-03-19 | 长江地球物理探测（武汉）有限公司 | Pipeline endoscopic detection and tracing device |
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