Wheel lifting mechanism of amphibious ship vehicle and amphibious ship vehicle

Abstract

The wheel lifting mechanism comprises a rotation driving part used for being fixed to a vehicle frame, an output shaft of the rotation driving part is connected with a gear, the two sides of the gear are meshed with a horizontally-arranged rack component, the rack component is in sliding connection with a guide part used for being fixed to the vehicle frame, and the guide part is connected with the rotation driving part. The outer end of the rack component is hinged to one end of the shock absorber, the other end of the shock absorber is hinged to one end of the rocker, the rocker is used for installing wheels, the other end of the rocker is used for being hinged to a vehicle frame, and the wheel lifting mechanism overcomes the defects of an existing amphibious ship vehicle wheel lifting mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of amphibious vessels and vehicles, and in particular to a wheel lifting mechanism of an amphibious vessel and vehicle and the amphibious vessel and vehicle. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] An amphibious vehicle is a vehicle that can travel on both land and water. In an amphibious vehicle, the wheels need to be equipped with a lifting mechanism to reduce the resistance of traveling in water. Patent application CN110936776A discloses a self-locking retractable wheel device for an amphibious vehicle, including: a motor, a worm gear reduction box, a rocker arm, two synchronous connecting rods and two four-bar linkages. The motor is driven by the worm gear reduction box after deceleration, and the synchronous connecting rods at both ends are driven by the rocker arm to pull or lower the four-bar drums on both sides, thereby driving the wheels to be retracted or lowered. However, the solution of the above patent application needs to set a rocker arm, a connecting rod, a four-bar linkage, etc., which has a complex structure and is not easy to maintain. Patent application CN117416441A discloses a wheel lifting mechanism for an amphibious vehicle. When the lifting drive mechanism drives the shock absorber to rise or fall, the cradle in the cradle mechanism rotates around the hinge to lift the wheel. In this patent, each wheel needs to be provided with a corresponding motor, which increases the equipment investment cost, occupies the external space of the vehicle body, increases the volume of the entire vehicle, and reduces the applicability of the vehicle. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and to provide a wheel lifting mechanism for an amphibious vehicle and an amphibious vehicle, thereby overcoming the defects of the current wheel lifting mechanism.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] In the first aspect, an embodiment of the present invention provides a wheel lifting mechanism for an amphibious vehicle, including a rotating drive member fixed to a frame, wherein the output shaft of the rotating drive member is connected to a gear, both sides of the gear are meshed with horizontally arranged rack members, the rack member is slidably connected to a guide member fixed to the frame, the outer end of the rack member is hinged to one end of a shock absorber, the other end of the shock absorber is hinged to a rocker, one end of the rocker is used to install the wheel, and the other end is used to be hinged to the frame.

[0007] Optionally, the rotary drive member is fixed on a rotary drive member mounting seat, and the rotary drive member mounting seat is used to be fixedly connected to the frame.

[0008] Optionally, the rotary drive member adopts a motor with a vertically arranged axis, and the output shaft of the motor is connected to the gear.

[0009] Optionally, the guide member adopts a horizontally arranged guide cylinder, and the corresponding rack component includes a guide part and a rack part, the guide part is embedded in the guide cylinder and is slidably connected to the guide cylinder, and the rack part extends to the outside of the guide cylinder through a long groove opened on the wall of the guide cylinder and engages with the gear box.

[0010] Optionally, the guide member is fixed on a guide member fixing seat, the guide member fixing seat is used to be fixed inside the frame, a rotating drive member mounting seat is provided between the two guide member fixing seats, and the rotating drive member is mounted on the rotating drive member mounting seat.

[0011] Optionally, the guide member is detachably connected to the guide member fixing seat.

[0012] Optionally, the outer end of the rack component is provided with two hinged ear plates, and the outer end of the rack is hinged to one end of the shock absorber through the hinged ear plates and a pin shaft.

[0013] Optionally, the rack components on both sides of the gear are distributed in a centrally symmetrical manner relative to the center of the gear.

[0014] In a second aspect, an embodiment of the present invention provides an amphibious vehicle, including a frame, on which is mounted the wheel lifting mechanism of the amphibious vehicle described in the first aspect, wherein a wheel is mounted on one end of the rocker arm and the other end is hinged to the side of the frame, and the rotating drive member and the guide member are fixedly mounted on the frame.

[0015] Optionally, the guide member is fixed on a guide member fixing seat, the guide member fixing seat is fixed inside the frame, a rotating drive member mounting seat is provided between the two guide member fixing seats, and the rotating drive member is mounted on the rotating drive member mounting seat.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the lifting mechanism and amphibious vehicle of the present invention, the rotating driving member is connected to the gear, the gear is meshed with the rack members on both sides, the outer ends of the rack members on both sides can drive the wheels to rise and fall through the shock absorber and the rocker respectively, and one rotating driving member can drive the wheels on both sides to rise and fall, and there is no need to equip each wheel with a rotating driving member separately, thus reducing the number of rotating driving members and reducing equipment investment. At the same time, the rotating driving member and the guide member do not occupy the space outside the frame, thus reducing the volume of the vehicle and improving the applicability and flexibility of the vehicle.

[0018] 2. The lifting mechanism and amphibious vehicle of the present invention can be driven to lift and lower the wheels through the rack, shock absorber and rocker. Compared with the traditional lifting through rocker arm, synchronous connecting rod, four-bar mechanism and shock absorber, the rack only moves horizontally and will not occupy the space in the frame in the vertical direction during operation, which is convenient for installation and arrangement on the frame, with a simpler structure and more convenient maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0020] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present invention when the wheels are lowered;

[0021] Figure 2 is a top view of the gear and two rack components in accordance with Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention when the wheels are retracted;

[0023] Among them, 1. rotating driving member mounting seat, 2. frame, 3. gear, 4. rack component, 4-1. guide part, 4-2. rack part, 5. shock absorber, 6. rocker, 7. wheel, 8. motor, 9. guide cylinder, 10. guide member fixing seat, 11. fixing plate, 12. hinged ear plate, 13. connecting plate. DETAILED DESCRIPTION

[0024] Example 1

[0025] This embodiment provides a wheel lifting mechanism for an amphibious vehicle, such as Figure 1-Figure 3 As shown, it includes a rotating driving member, which is fixed on a rotating driving member mounting seat 1. The rotating driving member mounting seat 1 is used to be installed and fixed on a frame 2. The axis of the output shaft of the rotating driving member is vertically arranged, and the output shaft of the rotating driving member is connected to a gear 3. Both sides of the gear 3 are meshed with a rack member 4. The rotation of the gear 3 can drive the rack members 4 on both sides thereof to move toward or away from each other synchronously. The rack member 4 is slidably connected to a horizontally arranged guide member. The guide member is used to be installed and fixed on the frame 2 to guide the horizontal movement of the rack member 4. The outer end portion of the rack member 4 is hinged to one end of a shock absorber 5, and the other end of the shock absorber 5 is hinged to a rocker 6. One end of the rocker 6 is used to install a wheel 7, and the other end is used to be hinged to the outer side surface of the frame.

[0026] In this embodiment, the rotating drive member drives the gear 3 to rotate, and the gear 3 drives the two rack components 4 to make horizontal movements toward or away from each other. The rack component 4 drives the rocker 6 to swing through the shock absorber 5, thereby realizing the lifting and lowering of the wheel 7, that is, realizing the folding and lowering of the wheel 7.

[0027] Specifically, the rotary drive member adopts a motor 8 with a vertically arranged axis, a housing of the motor 8 is fixed to the rotary drive member mounting base 1 , and an output shaft of the motor 8 is connected to the gear 3 .

[0028] Both sides of the gear 3 are meshed with the rack component 4, that is, the meshing positions of the two rack components and the gear 3 are arranged 180 degrees apart.

[0029] In this embodiment, the axis of the output shaft of the motor 8 intersects with the center line of the frame 2 along the length direction. Accordingly, the two rack components 4 are symmetrically arranged relative to the center of the circle of the gear 3, so that when the two rack components 4 move, the distance between the outer ends of the two rack components 4 and the center of the circle of the gear 3 always remains equal.

[0030] In this embodiment, the guide member adopts a guide cylinder 9 , which is a cylindrical cylinder. The guide cylinder 9 is fixed to a guide member fixing seat 10 , and the guide member fixing seat 10 is used to be fixedly installed inside the vehicle frame 2 .

[0031] Preferably, a plurality of fixing plates 11 are fixed on the wall of the guide cylinder 9 , and the fixing plates 11 are detachably connected to the guide member fixing seat 10 via bolts.

[0032] The guide member fixing seat 10 includes a first fixing portion, which is detachably fixed to the fixing plate 11 by bolts, and a second fixing portion and a third fixing portion are respectively provided on both sides of the first fixing portion, and the bottom ends of the second fixing portion and the third fixing portion are used for fixed connection with the frame 2.

[0033] Correspondingly, the rack component 4 includes a guide portion 4-1, which matches the guide cylinder 9, is embedded in the guide cylinder 9 and is slidably connected to the guide cylinder 9, and a rack portion 4-2 is provided on one side of the guide portion 4-1. The rack portion 4-2 has a rack structure, and the rack portion 4-2 extends to the outside of the guide cylinder 9 through a long groove provided on the wall of the guide cylinder 9 and meshes with the gear 3.

[0034] A rotating drive member fixing seat 1 is provided between the first fixing parts of the two guide members, and the rotating drive member fixing seat 1 includes a support column, which is fixedly connected to the first fixing part, and a support plate is provided between the support columns on both sides. The housing of the motor 8 is fixed on the top surface of the support plate, and the output shaft of the motor passes through the support plate and is connected to the gear 3.

[0035] The outer end of the rack member 4 is provided with two hinged lug plates 12, and one end of the shock absorber 5 is hinged to the rack member 4 through the hinged lug plate 12 and the pin. The hinged lug plate 12 is fixed to the end of the rack member 4 through a connecting plate 13, and the arrangement position of the hinged lug plate 12 makes the axes of the two shock absorbers 5 located on the same plane perpendicular to the bottom surface of the frame 2.

[0036] The rocker 6 is also provided with two hinged lugs, and the other end of the shock absorber 5 is hinged to the rocker 6 via the hinged lugs and the pin.

[0037] The shock absorber 5 can be an existing device, such as the shock absorber disclosed in patent application CN110936776A or patent application CN117416441A, and its specific structure is not described in detail here.

[0038] The outer end of the rocker arm 6 is used for mounting the wheel 7 , and the inner end is used for hinge connection with the outer side surface of the frame 2 .

[0039] Example 2

[0040] This embodiment provides an amphibious vehicle, including a frame 2, and the frame 2 is provided with the wheel lifting mechanism of the amphibious vehicle described in Example 1.

[0041] The guide member fixing seat 10 is fixed inside the frame 2, one end of the rocker 6 is hinged to the outer side of the frame 2 through a hinge seat and a pin, and a wheel 7 is installed on the other end of the rocker 6. The assembly method of the wheel 7 and the rocker 6 can adopt the existing technology and will not be described in detail here.

[0042] A rotating drive member mounting seat 1 is provided between the top surfaces of the two guide member fixing seats 10 , and a motor 8 is installed on the rotating drive member mounting seat 1 , and the axis of the motor 8 passes through the center line of the frame arranged along the length direction.

[0043] With this arrangement, a rotating drive member can drive the wheels 7 on both sides to rise and fall, and there is no need to equip each wheel with a rotating drive member, which reduces the number of rotating drive members and reduces equipment investment. At the same time, the rotating drive member and the guide member do not occupy the space outside the frame, reducing the size of the vehicle and improving the applicability and flexibility of the vehicle. At the same time, the wheels can be driven to rise and fall through the rack member, shock absorber 5 and rocker 6. Compared with the traditional method of lifting and falling through rocker arms, synchronous connecting rods, four-bar linkages and shock absorbers, the rack member 4 only moves horizontally and does not occupy the space inside the frame 2 in the vertical direction during operation, which is convenient for installation and arrangement on the frame, and the structure is simpler and maintenance is more convenient.

[0044] The amphibious vehicle of this embodiment, when the wheels 7 need to be retracted, Figure 3As shown, the motor 8 drives the gear 3 to rotate in the forward direction, and the two rack components 4 move toward each other. The rack component 4 drives the rocker 6 to swing upward through the shock absorber 5, thereby realizing the upward swinging and retracting of the wheel 7.

[0045] When it is necessary to put down the wheel 7, Figure 1 As shown, the motor 8 drives the gear 3 to rotate in the opposite direction, and the two rack components 4 move away from each other. The rack component 4 drives the rocker 6 to swing downward through the shock absorber 5, thereby realizing the downward swinging and retracting of the wheel 7.

[0046] The remaining structures of the amphibious vehicle can adopt the existing technology and will not be described in detail here.

[0047] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A wheel lifting mechanism for an amphibious vehicle, characterized in that: It includes a rotating driving member fixed to a frame, wherein an output shaft of the rotating driving member is connected to a gear, both sides of the gear are meshed with horizontally arranged rack members, the rack member is slidably connected to a guide member fixed to the frame, an outer end of the rack member is hinged to one end of a shock absorber, the other end of the shock absorber is hinged to a rocker, one end of the rocker is used to mount a wheel, and the other end is used to be hinged to the frame.

2. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The rotary drive member is fixed on a rotary drive member mounting seat, and the rotary drive member mounting seat is used for being fixedly connected to the vehicle frame.

3. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The rotary drive member adopts a motor with a vertically arranged axis, and the output shaft of the motor is connected to the gear.

4. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The guide member adopts a horizontally arranged guide cylinder, and the corresponding rack component includes a guide part and a rack part. The guide part is embedded in the guide cylinder and is slidably connected to the guide cylinder. The rack part extends to the outside of the guide cylinder through a long groove opened on the wall of the guide cylinder and engages with the gear box.

5. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The guide member is fixed on a guide member fixing seat, and the guide member fixing seat is used to be fixed inside the vehicle frame. A rotating drive member mounting seat is provided between the two guide member fixing seats, and the rotating drive member is mounted on the rotating drive member mounting seat.

6. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 5, characterized in that: The guide member is detachably connected to the guide member fixing seat.

7. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The outer end of the rack component is provided with two hinged ear plates, and the outer end of the rack is hinged to one end of the shock absorber through the hinged ear plates and the pin shaft.

8. The wheel lifting mechanism of an amphibious vehicle as claimed in claim 1, characterized in that: The rack components on both sides of the gear are distributed in a centrally symmetrical manner relative to the center of the gear.

9. An amphibious vehicle, comprising a frame, characterized in that: The wheel lifting mechanism of the amphibious vehicle according to any one of claims 1 to 8 is installed on the frame, wherein a wheel is installed on one end of the rocker and the other end is hinged to the side of the frame, and the rotating drive member and the guide member are fixedly installed on the frame.

10. The amphibious vehicle according to claim 9, characterized in that: The guide member is fixed on a guide member fixing seat, the guide member fixing seat is fixedly connected to the vehicle frame, the two guide member fixing seats are fixed inside the vehicle frame, and the rotating driving member is installed on the rotating driving member mounting seat.

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