CN110936775A - Synchronous wheel retracting device of amphibious vehicle - Google Patents
Synchronous wheel retracting device of amphibious vehicle Download PDFInfo
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- CN110936775A CN110936775A CN201911348918.4A CN201911348918A CN110936775A CN 110936775 A CN110936775 A CN 110936775A CN 201911348918 A CN201911348918 A CN 201911348918A CN 110936775 A CN110936775 A CN 110936775A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 78
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000035939 shock Effects 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F3/00—Amphibious vehicles, i.e. vehicles capable of travelling both on land and on water; Land vehicles capable of travelling under water
- B60F3/0007—Arrangement of propulsion or steering means on amphibious vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F2301/00—Retractable wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/28—Amphibious vehicles
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The application discloses a synchronous retractable wheel device of an amphibious vehicle, and relates to the amphibious vehicle. Receive and release a round device and include: synchronous pivot, rocking arm, lockpin, two synchronous connecting rods, two four-bar linkage and hydro-cylinder. The center of the rocker arm is connected with the synchronous rotating shaft. The latch pin can lock the rocker arm at a designated position. Two synchronous connecting rods are symmetrically arranged, and one end of each synchronous connecting rod is hinged with the corresponding end of the rocker arm. The two four-bar linkages are symmetrically arranged, the upper end of the inner side of each four-bar linkage is hinged at the other end of the corresponding synchronous connecting rod, and each four-bar linkage is fixedly connected with the corresponding chain transmission case. The oil cylinder is connected to the inner sides of the two four-bar linkage mechanisms. The four-bar mechanism is driven by the oil cylinder to fold and unfold one wheel, and the four-bar mechanism drives the transmission structure consisting of the synchronous connecting bar, the rocker arm and the synchronous rotating shaft to drive the other four-bar mechanism to fold and unfold the other wheel at the same time. The folding type road wheel has the characteristics of compact structure, large folding amplitude of the wheels, stable land operation and long service life.
Description
Technical Field
The application relates to an amphibious vehicle, in particular to a synchronous wheel retracting device of the amphibious vehicle.
Background
The water navigation speed is an important index of the amphibious vehicle. Compared with a boat, the amphibious vehicle is complex in structure and heavy in draft; the streamlined body is damaged by the wheels and wheel suspensions; resulting in large sailing resistance. Therefore, most amphibious vehicles adopt a retractable wheel structure, and wheels are retracted above the water surface when the amphibious vehicles run in water, so that resistance is reduced. The purpose of increasing the speed of the vehicle is achieved. The quality of the design of the wheel retracting device directly influences the land running performance and the underwater navigation resistance.
The current mature amphibious vehicle products comprise Humingda, Gibbs Humdinga and Gibbs Quadski of Gibbs corporation, Splash of Rinspeed corporation in Switzerland and amphibious vehicles of Watercar corporation in America, and the highest navigation speed of the amphibious vehicles can reach 70-80 km/h. The development and the start of the amphibious vehicle are late in China, the difference is larger compared with the difference abroad, the wheel collecting mechanism is immature, and the overwater sailing speed is generally not more than 20 km/h. One important reason for the low speed of water navigation is that the resistance in water is too high, and if the wheels can be retracted above the water surface and the damage to the streamline body of the vehicle body is less, the performance of the amphibious vehicle can be obviously improved.
Disclosure of Invention
It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.
The application provides an amphibious vehicle synchronous receive and release wheel device installs in amphibious vehicle's automobile body department, and the automobile body includes corresponding wheel, chain drive case and transmission shaft, and each wheel is connected with corresponding chain drive case, the chain drive case is connected with corresponding transmission shaft, receives and releases the wheel device and includes:
a synchronous rotating shaft;
the center of the rocker arm is connected with the synchronous rotating shaft, and the rocker arm can rotate along the synchronous rotating shaft;
the center of the lock pin is coaxial with the lock hole on the rocker arm, and the rocker arm can be locked at a specified position;
the two synchronous connecting rods are symmetrically arranged relative to the central axis of the rocker arm, and one end of each synchronous connecting rod is hinged with the corresponding end of the rocker arm;
the two four-bar linkages are symmetrically arranged relative to the central axis of the rocker arm, the upper end of the inner side of each four-bar linkage is hinged at the other end of the corresponding synchronous connecting rod, and each four-bar linkage is also fixedly connected with the corresponding chain transmission case to drive the corresponding chain transmission case to act so as to drive the corresponding wheel to be folded or unfolded; and
the oil cylinder is connected to the inner sides of the two four-bar mechanisms and used for driving one four-bar mechanism of the two four-bar mechanisms to drive the synchronous connecting rod corresponding to the one four-bar mechanism to rotate, so that the rocker arm is driven to rotate, the other synchronous connecting rod is driven to rotate, the other four-bar mechanism is driven to move, and the wheels are simultaneously folded and unfolded.
Optionally, the two synchronization links include a left synchronization link and a right synchronization link, the two four-bar linkages include a left four-bar linkage and a right four-bar linkage, each four-bar linkage includes:
one end of the inner rocker arm is hinged with the other end of the corresponding synchronous connecting rod;
one end of the upper connecting rod is hinged with one end of the inner rocker arm to form an upper hinge point B of the four-bar linkage;
one end of the wheel side rocker is hinged with the other end of the upper connecting rod to form an upper hinge point C of the four-bar mechanism; and
one end of the lower connecting rod is hinged with the other end of the wheel-side rocker arm to form a lower hinge point D of the four-bar linkage mechanism, and the other end of the lower connecting rod is hinged with the other end of the inner side rocker arm to form a lower hinge point A of the four-bar linkage mechanism;
the lower hinge point D of each four-bar linkage mechanism is fixedly connected with the corresponding chain transmission case, the upper hinge point B of each four-bar linkage mechanism is hinged with the other end of the corresponding synchronous connecting rod, the lower hinge point A of the four-bar linkage mechanism on the left side is connected with the oil cylinder, and the upper hinge point B of the four-bar linkage mechanism on the right side is connected with the cylinder rod of the oil cylinder and driven by the oil cylinder.
Optionally, each four-bar linkage further comprises a shock absorber configured to reduce the propagation of vibrations to the vehicle body as the retractable wheel assembly traverses a bumpy road surface.
Optionally, each shock absorber is mounted between the upper hinge point B and the lower link in the corresponding four-bar linkage.
Optionally, the inner rocker arm is arranged close to the oil cylinder, and the wheel-side rocker arm is arranged close to the wheel.
Alternatively, the cylinder rod of the oil cylinder has a contracted state and an expanded state,
when the cylinder rod of the oil cylinder is contracted, the upper hinge point B of the four-bar mechanism on the right side moves inwards with the hinge point A below as the center of a circle, the upper hinge point C and the lower hinge point D of the four-bar mechanism on the right side are pulled to be folded upwards, so that the wheel on the right side synchronously moves with the upper hinge point C and the lower hinge point D to complete the wheel folding action on the right side, the upper hinge point B of the four-bar mechanism on the right side drives the synchronous connecting rod on the right side to rotate while moving, the rocker arm rotates around the synchronous rotating shaft to drive the synchronous connecting rod on the left side to rotate, the hinge point A below the upper hinge point B of the four-bar mechanism on the left side moves inwards with the center of a circle, the upper hinge point C and the lower hinge point D of the four-bar mechanism on the left side are pulled to, the wheels on the two sides are retracted simultaneously;
when the cylinder rod of the oil cylinder is in an extending state and is not moved, the lower hinge point A and the upper hinge point B of each four-bar linkage mechanism are not moved relative to the vehicle body, and at the moment, the amphibious vehicle runs on the land.
The synchronous wheel retracting and releasing device of the amphibious vehicle is driven by the oil cylinder, the corresponding wheels are retracted or released by driving one four-bar linkage mechanism through the oil cylinder, the transmission structure consisting of two synchronous connecting rods, the rocker arm and the synchronous rotating shaft is driven by the one four-bar linkage mechanism, and the corresponding wheels are retracted or released by driving the other four-bar linkage mechanism. Through the structure, the amphibious vehicle has the advantages of being compact in structure and large in wheel folding amplitude, the wheels are folded to the water surface, the streamline bodies of the vehicle body are damaged less, and accordingly the performance of the amphibious vehicle is improved remarkably.
In addition, when the wheels are put down, the angle between the rocker arm and the two synchronous connecting rods is small, the moment generated by the wheel supporting force on the rocker arm is small, the locking of the lock pin is easy, and the locking is reliable.
In addition, this application hydro-cylinder and bumper shock absorber function separation for device long service life.
In addition, this application simple structure, easy processing, it is with low costs.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic front view of an amphibious vehicle provided with a synchronous retractable wheel device of the amphibious vehicle according to an embodiment of the present application, in normal road running;
FIG. 2 is a schematic front view of an amphibious vehicle equipped with a synchronous retractable wheel device of the amphibious vehicle according to an embodiment of the present application, when the vehicle is sailing;
fig. 3 is a schematic front view of an amphibious vehicle equipped with the synchronous retractable wheel device of the amphibious vehicle according to one embodiment of the present application, when the vehicle is driven on a bumpy road.
The symbols in the drawings represent the following meanings:
1-vehicle wheels; 2-a chain transmission case; 3-a lower connecting rod; 4-a shock absorber; 5-wheel side rocker arm; 6-upper connecting rod; 7-a transmission shaft; 8-inner rocker arm; 9-synchronous rotating shaft; 10-a synchronization link; 11-oil cylinder; 12-a rocker arm; 13-a vehicle body; 14-locking pin.
Detailed Description
Fig. 1 is a schematic front view of an amphibious vehicle provided with a synchronous retractable wheel device of the amphibious vehicle according to an embodiment of the present invention, when the amphibious vehicle runs on a normal road. Fig. 2 is a schematic front view of an amphibious vehicle provided with the synchronous retractable wheel device of the amphibious vehicle according to one embodiment of the present application, when the vehicle is sailing. Fig. 3 is a schematic front view of an amphibious vehicle equipped with the synchronous retractable wheel device of the amphibious vehicle according to one embodiment of the present application, when the vehicle is driven on a bumpy road.
As shown in fig. 1 and also referring to fig. 2-3, the present embodiment provides a synchronous retractable wheel device for an amphibious vehicle, which is installed at a vehicle body 13 of the amphibious vehicle. The vehicle body 13 includes the corresponding wheel 1, chain drive case 2, and drive shaft 7. Each wheel 1 is connected to a corresponding chain transmission case 2, which chain transmission case 2 is connected to a corresponding transmission shaft 7. The transmission shaft 7 is mounted on the vehicle body 13. Receive and release a round device and include: a synchronous rotating shaft 9, a rocker arm 12, a lock pin 14, two synchronous connecting rods 10, two four-bar mechanisms (not shown in the figure) and an oil cylinder 11. The two synchronization links 10 include a left synchronization link 10 and a right synchronization link. The two four-bar linkages include a left four-bar linkage and a right four-bar linkage. The center of the rocker arm 12 is connected with the synchronous rotating shaft 9, and the rocker arm 12 can rotate along the synchronous rotating shaft 9. The rocker arm 12 also has a latch hole therein. The center of the lock pin 14 is coaxial with the lock hole on the rocker arm 12, and the rocker arm 12 can be locked at a designated position. The two synchronous connecting rods 10 are symmetrically arranged relative to the central axis of the rocker arm 12, and one end of each synchronous connecting rod 10 is hinged with the corresponding end of the rocker arm 12. The left synchronization link 10 is connected to the left end of the rocker arm 12, and the right synchronization link is connected to the right end of the rocker arm 12. The two four-bar linkages are symmetrically arranged relative to the central axis of the rocker arm 12, and the upper end of the inner side of each four-bar linkage is hinged at the other end of the corresponding synchronous connecting rod 10. The left four-bar linkage is articulated to the left synchronization link 10. The four-bar linkage on the right side is hinged with the synchronous connecting rod on the right side. Each four-bar linkage mechanism is also fixedly connected with the corresponding chain transmission case 2 so as to drive the corresponding chain transmission case 2 to act, and further drive the corresponding wheel 1 to be folded or put down. When the wheel is completely put down, the lock hole position on the rocker arm 12 is coaxial with the lock pin 14, and the lock pin 14 is inserted into the lock hole to lock the position of the rocker arm 12. The oil cylinder 11 is connected to the inner sides of the two four-bar linkages and is used for driving one of the two four-bar linkages. The cylinder 11 may drive the left four-bar linkage or may drive the right four-bar linkage. More specifically, in this embodiment, as shown in fig. 2, the oil cylinder 11 drives the right four-bar linkage to drive the right synchronous link to rotate, and drives the rocker arm 12 to rotate, and drives the left synchronous link 10 to rotate, and further drives the left four-bar linkage to move, so as to implement simultaneous retraction of the wheels 1. Referring to fig. 2, of course, in other embodiments, the oil cylinder 11 may also drive the left four-bar linkage to drive the left synchronization link 10 to rotate, and drive the rocker arm 12 to rotate, and drive the right synchronization link to rotate, and further drive the right four-bar linkage to act, so as to implement simultaneous retraction of the wheels 1.
In this embodiment, the upper hinge point B of the right four-bar linkage is driven by the rod of the oil cylinder 11. The hinge point B of the right four-bar linkage is hinged with one end of the right synchronous connecting rod 10, the other end of the right synchronous connecting rod 10 is hinged with the rocker arm 12, the center of the rocker arm 12 is connected with the synchronous rotating shaft 9, the other end of the rocker arm 12 is connected with the left synchronous connecting rod, and the left synchronous connecting rod is connected with the upper hinge point B of the left four-bar linkage. The four-bar mechanism on the right side and the four-bar mechanism on the left side drive the corresponding chain transmission case 2 and the corresponding wheel 1, and then the wheel 1 is folded or put down.
The vehicle wheel folding and unfolding device is driven by the oil cylinder 11, the oil cylinder 11 drives one four-bar mechanism to fold or unfold the corresponding vehicle wheel 1, the four-bar mechanism drives a transmission structure consisting of two synchronous connecting rods 10, a rocker arm 12 and a synchronous rotating shaft 9, and the other four-bar mechanism is driven to fold or unfold the corresponding vehicle wheel 1. Therefore, the structure has the characteristics of compact structure and large retraction amplitude of the wheels 1, the wheels 1 can be retracted above the water surface, and the damage to the streamline body of the vehicle body 13 is less, so that the performance of the amphibious vehicle is obviously improved.
In addition, when the vehicle wheel 1 is put down, the angle between the rocker arm 12 and the two synchronous connecting rods 10 is small, the torque applied to the rocker arm 12 is small, the locking is easy to use through the lock pin 14, and the locking is reliable. And the load of the wheel 1 can not be transferred to the oil cylinder 11, so that the size of the oil cylinder 11 and the power of a hydraulic system are effectively reduced.
In addition, this application hydro-cylinder 11 and 4 functional separation of bumper shock absorbers for device long service life.
In addition, this application simple structure, easy processing, it is with low costs.
As shown in fig. 1, each four-bar linkage includes: the inner rocker arm 8, the upper connecting rod 6, the wheel side rocker arm 5 and the lower connecting rod 3. Taking the left four-bar linkage as an example, one end of the inner rocker arm 8 is hinged to the other end of the corresponding synchronization link. One end of the upper connecting rod 6 is hinged with one end of the inner rocker arm 8 to form an upper hinge point B of the four-bar linkage. One end of the wheel side rocker arm 5 is hinged with the other end of the upper connecting rod 6 to form an upper hinge point C of the four-bar linkage. One end of the lower connecting rod 3 is hinged with the other end of the wheel-side rocker arm 5 to form a lower hinge point D of the four-bar mechanism. The other end of the lower connecting rod 3 is hinged with the other end of the inner side rocker arm 8 to form a lower hinge point A of the four-bar mechanism. Wherein, the lower hinge point D of the four-bar linkage mechanism on the left side is fixedly connected with the chain transmission case 2 on the left side. The upper hinge point B of the four-bar linkage on the left side is hinged with the other end of the synchronous connecting bar on the left side. The four-bar linkage on the right side and the four-bar linkage on the left side are symmetrical structures, and the detailed structure and the connection structure of the four-bar linkage on the right side are not described in detail in this embodiment. More specifically, the lower hinge point a of the left four-bar linkage is connected to the cylinder 11. The upper hinge point B of the right four-bar linkage is connected with the cylinder rod of the oil cylinder 11 and is driven by the oil cylinder 11.
More specifically, in the present embodiment, each four-bar linkage further includes a shock absorber 4 configured to reduce the propagation of vibrations to the vehicle body 13 when the retractable wheel assembly passes over a bumpy road surface. In this embodiment, each shock absorber 4 is installed between the upper hinge point B and the lower link 3 in the corresponding four-bar linkage.
More specifically, in the present embodiment, the inner swing arm 8 is disposed near the cylinder 11, and the wheel-side swing arm 5 is disposed near the wheel 1.
More specifically, in the present embodiment, the cylinder rod of the oil cylinder 11 has a contracted state and an expanded state.
As shown in fig. 2, the latch 14 is retracted, unlocking the rocker arm 12. When the cylinder rod of the oil cylinder 11 is contracted, the lower hinge point a of the upper hinge point B of the four-bar mechanism on the right side moves inwards as the circle center, and the upper hinge point C and the lower hinge point D of the four-bar mechanism on the right side are pulled to be folded upwards, so that the wheels on the right side and the upper hinge point C and the lower hinge point D move synchronously to complete the wheel folding action on the right side. Meanwhile, the upper hinge point B of the four-bar mechanism on the right moves and simultaneously drives the synchronous connecting rod on the right to rotate, so that the rocker arm 12 rotates around the synchronous rotating shaft 9 to drive the synchronous connecting rod on the left to rotate, the lower hinge point A of the upper hinge point B of the four-bar mechanism on the left moves inwards as a circle center, the upper hinge point C and the lower hinge point D of the four-bar mechanism on the left are pulled to be folded upwards, the left wheel 1 and the upper hinge point C and the lower hinge point D move synchronously, the left wheel folding action is completed, and the wheels 1 on two sides are folded simultaneously. The wheel 1 is stowed as shown in figure 2.
As shown in fig. 1, when the amphibious vehicle is running on land, the cylinder rod of the cylinder 11 is in an extended state and is not moved, and the lower hinge point a and the upper hinge point B of each four-bar linkage mechanism are not moved relative to the vehicle body 13. As shown in fig. 3, when the road is bumpy, the left wheel 1 is forced to be tilted upwards, the left shock absorber 3 is forced to be compressed, the upper hinge point C and the lower hinge point D of the left four-bar linkage mechanism both move upwards, and the lower hinge point a and the upper hinge point B of the left four-bar linkage mechanism both do not move or move a little, so that the propagation of vibration to the vehicle body 13 is reduced, and the shock absorption effect is achieved.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. A synchronous wheel retracting and releasing device of an amphibious vehicle is installed at a vehicle body (13) of the amphibious vehicle, the vehicle body (13) comprises corresponding wheels (1), chain transmission boxes (2) and transmission shafts (7), each wheel (1) is connected with the corresponding chain transmission box (2), the chain transmission boxes (2) are connected with the corresponding transmission shafts (7), and the wheel retracting and releasing device is characterized by comprising:
a synchronous rotating shaft (9);
the center of the rocker arm (12) is connected with the synchronous rotating shaft (9), and the rocker arm (12) can rotate along the synchronous rotating shaft (9);
a lock pin (14) which is coaxial with the lock hole of the rocker arm (12) at the center and can lock the rocker arm (12) at a specified position;
the two synchronous connecting rods (10) are symmetrically arranged relative to the central axis of the rocker arm (12), and one end of each synchronous connecting rod (10) is hinged with the corresponding end of the rocker arm (12);
the two four-bar linkages are symmetrically arranged relative to the central axis of the rocker arm (12), the upper end of the inner side of each four-bar linkage is hinged at the other end of the corresponding synchronous connecting rod (10), and each four-bar linkage is also fixedly connected with the corresponding chain transmission case (2) so as to drive the corresponding chain transmission case (2) to act and further drive the corresponding wheel (1) to be folded or put down; and
and the oil cylinder (11) is connected at the inner side of the two four-bar mechanisms and is used for driving one four-bar mechanism of the two four-bar mechanisms to drive the synchronous connecting rod (10) corresponding to the one four-bar mechanism to rotate, so as to drive the rocker arm (12) to rotate and drive the other synchronous connecting rod to rotate, further drive the other four-bar mechanism to act, and realize simultaneous folding and unfolding of the wheels (1).
2. An amphibious vehicle synchronous retractable wheel apparatus according to claim 1, characterised in that the two synchronising linkages (10) comprise a left synchronising linkage and a right synchronising linkage, the two four-bar linkages comprise a left four-bar linkage and a right four-bar linkage, each four-bar linkage comprising:
one end of the inner rocker arm (8) is hinged with the other end of the corresponding synchronous connecting rod (10);
one end of the upper connecting rod (6) is hinged with one end of the inner rocker arm (8) to form an upper hinge point B of the four-bar mechanism;
one end of the wheel side rocker (5) is hinged with the other end of the upper connecting rod (6) to form an upper hinge point C of the four-bar linkage; and
one end of the lower connecting rod (3) is hinged with the other end of the wheel side rocker arm (5) to form a lower hinge point D of the four-bar mechanism, and the other end of the lower connecting rod (3) is hinged with the other end of the inner side rocker arm (8) to form a lower hinge point A of the four-bar mechanism;
the lower hinge point D of each four-bar linkage mechanism is fixedly connected with the corresponding chain transmission case (2), the upper hinge point B of each four-bar linkage mechanism is hinged with the other end of the corresponding synchronous connecting rod (10), the lower hinge point A of the four-bar linkage mechanism on the left side is connected with the oil cylinder (11), and the upper hinge point B of the four-bar linkage mechanism on the right side is connected with the cylinder rod of the oil cylinder (11) and driven by the oil cylinder (11).
3. An amphibious vehicle synchronous retractable wheel apparatus according to claim 2, characterised in that each four-bar linkage further comprises a shock absorber (4) arranged to reduce the propagation of vibrations to the vehicle body (13) as the retractable wheel apparatus traverses rough terrain.
4. An amphibious vehicle synchronous retractable wheel apparatus according to claim 3, characterised in that each shock absorber (4) is mounted between the upper hinge point B and the lower link (3) in the corresponding four-bar linkage.
5. An amphibious vehicle synchronous retracting wheel arrangement according to any of the claims 2-4, wherein the inboard swing arm (8) is arranged close to the cylinder (11) and the wheel side swing arm (5) is arranged close to the wheel (1).
6. An amphibious vehicle synchronous retractable wheel apparatus according to claim 5, characterised in that the cylinder rod of the cylinder (11) has a retracted state and an extended state,
when the cylinder rod of the oil cylinder (11) contracts, the upper hinge point B of the right four-bar mechanism moves inwards with the hinge point A below the upper hinge point B as the center of a circle, the upper hinge point C and the lower hinge point D of the right four-bar mechanism are pulled to be folded upwards, so that the right wheel moves synchronously with the upper hinge point C and the lower hinge point D to complete the right wheel folding action, the upper hinge point B of the right four-bar mechanism drives the right synchronous connecting rod (10) to rotate while moving, the rocker arm (12) rotates around the synchronous rotating shaft (9) to drive the left synchronous connecting rod to rotate, so that the upper hinge point B of the left four-bar mechanism moves inwards with the hinge point A below the upper hinge point B as the center of a circle, the upper hinge point C and the lower hinge point D of the left four-bar mechanism are pulled to be folded upwards, and the left wheel (1) moves, the wheel retracting action on the left side is finished, so that the wheels (1) on the two sides are retracted simultaneously;
when the cylinder rod of the oil cylinder (11) is in an extending state and is not moved, the lower hinge point A and the upper hinge point B of each four-bar linkage mechanism are not moved relative to the vehicle body (13), and at the moment, the amphibious vehicle runs on the land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348918.4A CN110936775A (en) | 2019-12-24 | 2019-12-24 | Synchronous wheel retracting device of amphibious vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911348918.4A CN110936775A (en) | 2019-12-24 | 2019-12-24 | Synchronous wheel retracting device of amphibious vehicle |
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| Publication Number | Publication Date |
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| CN110936775A true CN110936775A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911348918.4A Withdrawn CN110936775A (en) | 2019-12-24 | 2019-12-24 | Synchronous wheel retracting device of amphibious vehicle |
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| CN (1) | CN110936775A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926872A (en) * | 2020-06-16 | 2020-11-13 | 西安理工大学 | Novel dredging operation robot |
-
2019
- 2019-12-24 CN CN201911348918.4A patent/CN110936775A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111926872A (en) * | 2020-06-16 | 2020-11-13 | 西安理工大学 | Novel dredging operation robot |
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Application publication date: 20200331 |