Amphibious work machine

Abstract

The application provides an amphibious working machine, which comprises a central rotating platform, a traveling mechanism, a first floating part and a second floating part; two traveling mechanisms are respectively arranged on the two sides of the central rotating platform perpendicular to the traveling direction, and are used for moving the central rotating platform in the traveling direction; the first floating part is arranged in front of the central rotating platform along the traveling direction; the second floating part is arranged behind the central rotating platform along the traveling direction; and the first floating part and the second floating part are matched with each other and are used for reducing the rocking of the central rotating platform. The floating part and the traveling mechanism are arranged, so that the working machine can float in water to complete the water operation and can normally travel on land to complete the land operation. Moreover, the floating part is arranged in front of and behind the central rotating platform, so that the pitching problem of the working machine is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of work machinery technology, and in particular to an amphibious work machinery. Background Technology

[0002] Water conservancy projects involve dredging of rivers and lakes, resource development of wetlands, swamps, and tidal flats, and environmental remediation. To complete these tasks, a type of machinery that can operate normally on both land and water is required.

[0003] In existing technologies, land-based work machinery has been modified by installing pontoons on its bottom and sides to make it suitable for both land and water operations. However, in actual use, this type of machinery with pontoons on the bottom and sides has poor resistance to pitching and rolling. This is particularly evident in amphibious excavators, whose buckets move back and forth, causing the entire machine to shake and sway violently in this direction, making it difficult to perform operations normally. Summary of the Invention

[0004] This invention provides an amphibious work machine to solve the problem of poor anti-swaying ability of existing work machines when operating in water. This invention can improve the swaying problem of work machines and achieve more stable water operations.

[0005] This invention provides an amphibious work machine, comprising: a central rotating platform, a traveling mechanism, a first floating part, and a second floating part;

[0006] The two traveling mechanisms are respectively located on both sides of the central rotary platform perpendicular to the traveling direction, and are used to move the central rotary platform in the traveling direction;

[0007] The first floating part is positioned in front of the central rotating platform along the direction of travel;

[0008] The second floating part is disposed behind the central rotating platform along the travel direction;

[0009] The first floating part and the second floating part cooperate to reduce the swaying of the central rotating platform.

[0010] According to the amphibious working machinery provided by the present invention, the first floating part includes: a first pontoon and a first propulsion device;

[0011] The first pontoon is connected to each of the two traveling mechanisms;

[0012] The first propulsion device is a bulbous bow located at the bottom of the first pontoon.

[0013] According to the amphibious work machinery provided by the present invention, the first propulsion device includes: a first propeller and a first power unit;

[0014] The first propeller is connected to the first power unit;

[0015] The first propeller is oriented perpendicular to the travel direction of the central slewing platform to control the travel direction of the central slewing platform.

[0016] According to the amphibious working machinery provided by the present invention, the first floating part further includes: a first extension section;

[0017] The two first extension sections are spaced apart on the side of the first pontoon away from the central slewing platform, and the two first extension sections are respectively connected to the first pontoon;

[0018] A gap is formed between the two first extension sections to provide working space for the bucket.

[0019] According to the amphibious working machine provided by the present invention, a first passage through the first pontoon is provided in the direction of travel, and the first passage is used for water flow.

[0020] According to the amphibious working machinery provided by the present invention, the top surface of the first pontoon is provided with an anti-slip structure.

[0021] According to the amphibious working machinery provided by the present invention, the second floating part includes: a second pontoon and a second propulsion device;

[0022] The second pontoon is connected to each of the two traveling mechanisms;

[0023] The second propulsion device is a bulbous bow located at the bottom of the second pontoon.

[0024] According to the amphibious working machinery provided by the present invention, the second propulsion device includes: a water pump, a pipe, and a water nozzle;

[0025] The water pump is installed inside the pipeline;

[0026] The pipe is provided with a water nozzle at its end, and the water nozzle faces the direction of travel of the central rotary platform to provide power to the central rotary platform in the direction of travel.

[0027] According to the amphibious working machinery provided by the present invention, the second floating part further includes: a second extension section;

[0028] Two second extension sections are spaced apart on the side of the second pontoon away from the central slewing platform, and the two second extension sections are respectively connected to the second pontoon;

[0029] A gap is formed between the two second extension sections to provide working space for the bucket.

[0030] The amphibious working machine provided by the present invention has a second passage through the second pontoon in the direction of travel, and the second passage is used for water flow.

[0031] This invention provides an amphibious work machine that, by incorporating a floating section and a traveling mechanism, allows the machine to perform both underwater and land-based operations. Furthermore, by positioning the floating section at the front and rear of the central rotating platform, the invention effectively mitigates the machine's pitching problem. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the amphibious working machine provided by the present invention;

[0034] Figure 2 This is a top view of the amphibious working machine provided by the present invention;

[0035] Figure 3 This is a schematic diagram of the first floating part provided by the present invention;

[0036] Figure 4 This is a schematic diagram of an embodiment of the first propulsion device provided by the present invention;

[0037] Figure 5 This is a schematic diagram of the second floating part provided by the present invention;

[0038] Figure 6 This is a schematic diagram of an embodiment of the second propulsion device provided by the present invention.

[0039] Figure label:

[0040] 10: Central slewing platform; 12: Traveling mechanism; 14: First floating section; 142: First pontoon; 144: First propulsion device; 1442: First propeller; 1444: First power unit; 146: First extension section; 148: First passageway; 16: Second floating section; 162: Second pontoon; 164: Second propulsion device; 1642: Water pump; 1644: Pipeline; 1646: Spray nozzle; 166: Second extension section; 168: Second passageway. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The following is combined Figures 1 to 6 The embodiments of the present invention will be described in further detail below. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the invention.

[0046] like Figure 1 and Figure 2 As shown, this invention provides an amphibious work machine, including: a central rotating platform 10, a traveling mechanism 12, a first floating part 14, and a second floating part 16. The central rotating platform 10 is equipped with a working mechanism, and each side of the central rotating platform 10 has a traveling mechanism 12. The traveling mechanism 12 drives the central rotating platform 10 to move back and forth in a direction perpendicular to the line connecting the traveling mechanisms 12. The working mechanism can rotate relative to the traveling mechanism 12 via the rotating platform, enabling the working mechanism to perform work on the surrounding area of ​​the central rotating platform 10. Optionally, the working mechanism is an excavating mechanism or a hoisting mechanism. The direction perpendicular to the line connecting the traveling mechanisms 12 is defined as the traveling direction of the central rotating platform 10.

[0047] Optionally, the traveling mechanism 12 includes: tracks and a power unit. There are two tracks, each connected to the power unit. The two tracks are respectively located on both sides of the central rotating platform 10. The motor controls the rotation of the tracks, enabling the amphibious work machine to move on land.

[0048] Furthermore, two floating sections are spaced apart between the traveling mechanisms 12 along the traveling direction of the central slewing platform 10. These two floating sections are a first floating section 14 and a second floating section 16. The first floating section 14 is located on the side of the central slewing platform 10 without the traveling mechanism 12, making this side the front of the central slewing platform 10. The first floating section 14 provides upward buoyancy and controls the traveling direction of the central slewing platform 10. The second floating section 16 is located on the other side of the central slewing platform 10 without the traveling mechanism 12, making this side the rear of the central slewing platform 10. The second floating section 16 provides upward buoyancy and propulsion for the central slewing platform 10 in the traveling direction. The first floating section 14 and the second floating section 16 cooperate with each other. By placing the floating sections in the front-rear direction of the central slewing platform 10, the pitching situation of the working machinery during water operation can be effectively improved.

[0049] See Figure 1 , Figure 2 and Figure 3 In an optional embodiment of the present invention, the first floating part 14 includes a first buoy 142 and a first propulsion device 144. The first buoy 142 is a hollow box with a sealed cavity inside to ensure that the first buoy 142 provides sufficient buoyancy. The first buoy 142 is located in front of the central rotating platform 10. Two traveling mechanisms 12 are connected to the two sides of the first buoy 142 respectively. The first propulsion device 144 is provided at the bottom of the first buoy 142. The first propulsion device 144 is spherically shaped and serves as a bulbous bow to counteract the pressure of the water flow.

[0050] like Figure 4 As shown, optionally, the first propulsion device 144 includes a first propeller 1442 and a first power unit 1444. The first propeller 1442 is disposed at the bottom of the first pontoon 142 and is connected to the first power unit 1444 to provide rotational power for the first propeller 1442. The blades of the first propeller 1442 are arranged parallel to the travel direction of the central rotating platform 10; in other words, the orientation of the first propeller 1442 is arranged perpendicular to the travel direction of the central rotating platform 10, so that the first propeller 1442 can push the first pontoon 142 to move in a direction perpendicular to the travel direction, thereby changing the forward direction of the amphibious working machine.

[0051] In the embodiment described above, there are two first propellers 1442, one of which faces to the left perpendicular to the direction of travel of the central rotating platform 10, and the other of which faces to the right perpendicular to the direction of travel of the central rotating platform 10, so as to freely control the forward direction of the amphibious working machine.

[0052] Optionally, the first propulsion device 144 includes a first propeller 1442, a steering structure, and a first power unit 1444. The first propeller 1442 is connected to the steering structure, and the first power unit 1444 is connected to both the first propeller 1442 and the steering structure. The steering structure is located at the bottom of the first pontoon 142. The steering structure changes the orientation of the first propeller 1442 to control the direction of travel of the central slewing platform 10.

[0053] By placing the first propeller 1442 at the bottom of the first pontoon 142, the present invention ensures that the first propeller 1442 is always in the water during shallow water operations, thus avoiding the occurrence of cavitation effect. This ensures the normal steering of the amphibious machinery and prevents the motor from overheating and being damaged.

[0054] See also Figure 3Furthermore, to ensure sufficient buoyancy from the pontoon, it needs to be relatively large, occupying a significant amount of space. This space encroaches on the working space of the machinery. To balance the space required for both the pontoon and the working space, this invention provides an optional embodiment where the first floating part 14 further includes two first extension sections 146. These two extension sections 146 are spaced apart on the side of the first pontoon 142 away from the central rotating platform 10, and are positioned close to the traveling mechanism 12. The increased contact area with the traveling mechanism 12 through the extension sections 146 enhances the stability of the traveling mechanism 12 in the water. The two first extension sections 146 are connected to the first pontoon 142, forming an internally connected U-shaped box. The space between the two first extension sections serves as the working space for the machinery.

[0055] Furthermore, when the amphibious work machine moves in the water, the surface of the first pontoon 142 facing the water flow will increase the wave-making resistance and frictional resistance during the journey. In order to reduce the resistance experienced by the first pontoon 142, a first passage 148 is provided through the first pontoon 142 in the direction of travel. The first passage 148 is used to allow water flow to pass through, thereby reducing navigation resistance.

[0056] Similarly, to reduce water resistance, the corners of the first floating part 14 are rounded. Specifically, the connection between the top and side of the first pontoon 142 and the connection between the bottom and side are rounded, and the cross-section of the first passage 148 perpendicular to the direction of travel is a rounded rectangle.

[0057] Optionally, the top surface of the first pontoon 142 is provided with an anti-slip structure, that is, multiple protrusions are provided on the top surface of the first pontoon 142 to make the surface uneven to achieve anti-slip, which facilitates providing additional activity space and maintenance platform during water operations.

[0058] See Figure 1 and Figure 5In an optional embodiment of the present invention, the second floating part 16 includes: a second pontoon 162 and a second propulsion device 164. The second pontoon 162 is a hollow box with a sealed cavity inside to ensure that the second pontoon 162 provides sufficient buoyancy. The second pontoon 162 is located in front of the central rotating platform 10. Two traveling mechanisms 12 are connected to the two sides of the second pontoon 162 respectively. The second propulsion device 164 is provided at the bottom of the second pontoon 162. The second propulsion device 164 has a spherical shape and serves as a bulbous bow to counteract the pressure of the water flow. Optionally, the second propulsion device 164 includes: a second propeller and a second power unit. The second propeller is disposed at the bottom of the second pontoon 162 and is connected to the second power unit to provide rotational power for the second propeller. The blades of the second propeller are set perpendicular to the direction of travel of the central rotating platform 10. In other words, the orientation of the second propeller is set parallel to the direction of travel of the central rotating platform 10, so that the second propeller can push the second pontoon 162 to move in the direction of travel, thereby propelling the amphibious working machine forward in the direction of travel.

[0059] like Figure 6 As shown, alternatively, the second propulsion device 164 may be a waterjet propulsion device, which is located at the bottom of the second pontoon 162. The second propulsion device 164 includes a water pump 1642, a pipe 1644, and a water jet nozzle 1646. The pipe 1644 is located at the bottom of the second pontoon 162, and the water pump 1642 is located inside the pipe 1644. One end of the pipe is configured as a suction port, and the other end is configured as the water jet nozzle 1646. The water jet nozzle 1646 is positioned towards the rear of the central rotating platform 10. The waterjet propulsion device can use the reaction force of the jetting water flow to drive the amphibious working machinery to move. For shallow waterways with muddy or sandy bottoms, the waterjet propulsion device has good adaptability.

[0060] By placing the second propeller at the bottom of the second pontoon 162, this invention ensures that the second propeller is always in the water during shallow water operations, thus avoiding the cavitation effect. This not only ensures the normal propulsion of the amphibious machinery but also prevents the motor from overheating and being damaged.

[0061] See also Figure 3Furthermore, to ensure sufficient buoyancy from the pontoon, it needs to be relatively large, occupying a significant amount of space. This space encroaches on the working space of the machinery. To balance the space required for both the pontoon and the working space, this invention provides an optional embodiment where the second floating section 16 further includes two second extension sections 166. These two extension sections 166 are spaced apart on the side of the second pontoon 162 away from the central rotating platform 10, and are positioned close to the traveling mechanism 12. The increased contact area with the traveling mechanism 12 enhances its stability in the water. The two extension sections 166 are connected to the second pontoon 162, forming an internally connected U-shaped box. The space between the two extension sections serves as the working space for the machinery.

[0062] Furthermore, when the amphibious work machine moves in the water, the surface of the second pontoon 162 facing the water flow will increase the wave-making resistance and frictional resistance during the journey. In order to reduce the resistance experienced by the second pontoon 162, a second passage 168 is provided through the second pontoon 162 in the direction of travel. The second passage 168 is used to allow water flow to pass through, thereby reducing navigation resistance.

[0063] Similarly, to reduce water resistance, the corners of the second floating part 16 are rounded. Specifically, the connection between the top and side of the second pontoon 162 and the connection between the bottom and side are rounded, and the cross-section of the second passage 168 perpendicular to the direction of travel is a rounded rectangle.

[0064] Optionally, the top surface of the second pontoon 162 is provided with an anti-slip structure, that is, multiple protrusions are provided on the top surface of the second pontoon 162 to make the surface uneven to achieve anti-slip, which facilitates providing additional activity space and maintenance platform during water operations.

[0065] In an optional embodiment of the present invention, an amphibious excavator is used as an example. The amphibious excavator includes: tracks, a first floating part 14, a second floating part 16, a third pontoon, a central slewing platform 10, and a working mechanism. The working mechanism is disposed on the central slewing platform 10 and is used for excavation operations. Two tracks are respectively provided on both sides of the central slewing platform 10, and a third pontoon is provided on each track. That is, two third pontoons are respectively disposed on two tracks. By providing third pontoons on the tracks on both sides, the yaw rate of the amphibious excavator is improved.

[0066] Optionally, a first floating part 14 is disposed between the two tracks, connected to each of the two tracks, and located on the side of the central slewing platform 10 not connected to the tracks. A second floating part 16 is disposed between the two tracks, connected to each of the two tracks, and located on the other side of the central slewing platform 10 not connected to the tracks. Alternatively, the first floating part 14 is disposed between the two tracks, connected to two third pontoons, and located on the side of the central slewing platform 10 not connected to the tracks. The second floating part 16 is disposed between the two tracks, connected to two third pontoons, and located on the other side of the central slewing platform 10 not connected to the tracks. By distributing the first floating part 14 and the second floating part 16 at the front and rear of the central slewing platform 10, the pitching and rolling characteristics of the amphibious excavator are improved.

[0067] The present invention effectively improves the roll and pitch of the amphibious excavator by setting a third pontoon in the left-right direction of the central rotating platform 10 and a first floating part 14 and a second floating part 16 in the front-back direction, enabling the amphibious excavator to carry out stable excavation operations on the water surface.

[0068] Specifically, the first floating section 14 includes a first pontoon 142 and a first propulsion device 144. The second floating section 16 includes a second pontoon 162 and a second propulsion device 164. The first propulsion device 144 is located at the bottom of the first pontoon 142, and the second propulsion device 164 is located at the bottom of the second pontoon 162. During shallow water operations, the first propulsion device 144 and the second propulsion device 164 located at the bottom of the amphibious excavator remain below the water surface, preventing cavitation effects caused by the first propulsion device 144 and the second propulsion device 164 being exposed above the water surface, thus ensuring the stable power of the first propulsion device 144 and the second propulsion device 164. Optionally, the first propulsion device 144 is an electro-hydraulic adjustable pitch side thruster. The electro-hydraulic adjustable pitch side thruster is located at the bottom of the first pontoon 142, and the electro-hydraulic adjustable pitch side thruster faces a side perpendicular to the direction of travel. Optionally, the second propulsion device 164 is a water jet propulsion device, and the water jet propulsion device faces the rear of the central rotating platform 10.

[0069] In actual use, the amphibious excavator moves freely on land via its tracks. Once in the water, the first pontoon 142, second pontoon 162, and third pontoon support the excavator, keeping it afloat. Activating the second propulsion device 164 allows the excavator to move forward in the water. With the second propulsion device 164 activated, activating the first propulsion device 144 changes the direction of travel. In some narrow waterways, turning on the spot can be achieved by activating only the first propulsion device 144 and deactivating the second propulsion device 164.

[0070] This invention, by incorporating a floating section and a traveling mechanism 12, enables the working machinery to perform both underwater and land-based operations. Furthermore, the floating section is positioned at the front and rear of the central rotating platform 10, effectively mitigating the pitching problem of the working machinery. The concave shape of the pontoon provides ample working space for the machinery. The first and second passageways 148 and 168 allow oncoming water flow to pass through them during travel, reducing the additional resistance from the first and second pontoon 142.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An amphibious working machine, characterized in that, include: Central turning platform (10), traveling mechanism (12), first floating section (14), and second floating section (16); The two traveling mechanisms (12) are respectively disposed on both sides of the central rotary platform (10) perpendicular to the traveling direction, for moving the central rotary platform (10) in the traveling direction. The first floating part (14) includes a first pontoon (142), which is disposed in front of the central rotating platform (10) along the travel direction, and the first pontoon (142) is connected to the two travel mechanisms (12) respectively. The second floating part (16) includes a second float box (162), which is disposed behind the central rotating platform (10) along the travel direction, and the second float box (162) is connected to the two travel mechanisms (12) respectively; The first floating part (14) and the second floating part (16) cooperate with each other to reduce the shaking of the central rotating platform (10); The first floating part (14) further includes two first extension sections (146), which are spaced apart on the side of the first pontoon (142) away from the central rotating platform (10), and the two first extension sections (146) are respectively connected to the first pontoon (142), wherein a gap is formed between the two first extension sections (146) to leave working space for the bucket; The second floating section (16) further includes two second extension sections (166), which are spaced apart on the side of the second pontoon (162) away from the central rotating platform (10), and the two second extension sections (166) are respectively connected to the second pontoon (162), wherein a gap is formed between the two second extension sections (166) to leave working space for the bucket.

2. The amphibious work machinery according to claim 1, characterized in that, The first floating part (14) includes a first propulsion device (144); the first propulsion device (144) is a bulbous bow disposed at the bottom of the first floating box (142).

3. The amphibious work machinery according to claim 2, characterized in that, The first propulsion device (144) includes: a first propeller (1442) and a first power unit; The first propeller (1442) is connected to the first power unit; The first propeller (1442) is set to be perpendicular to the travel direction of the central slewing platform (10) to control the travel direction of the central slewing platform (10).

4. The amphibious work machinery according to any one of claims 1 to 3, characterized in that, A first passage (148) is provided through the first pontoon (142) in the direction of travel, and the first passage (148) is used for water flow.

5. The amphibious work machinery according to any one of claims 1 to 3, characterized in that, The top surface of the first pontoon (142) is provided with an anti-slip structure.

6. The amphibious work machinery according to claim 1, characterized in that, The second floating part (16) includes a second propulsion device (164); the second propulsion device (164) is a bulbous bow disposed at the bottom of the second floating box (162).

7. The amphibious work machinery according to claim 6, characterized in that, The second propulsion device (164) includes: a water pump (1642), a pipe (1644), and a water nozzle (1646). The water pump (1642) is installed inside the pipe (1644); The end of the pipe (1644) is provided with the water nozzle (1646), and the water nozzle (1646) faces the travel direction of the central rotary platform (10) to provide power to the central rotary platform (10) in the travel direction.

8. The amphibious work machinery according to claim 6 or 7, characterized in that, A second passage (168) is provided in the direction of travel, penetrating the second pontoon (162), and the second passage (168) is used for water flow.

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