TWI740759B - Worm-wheel chassis of amphibious excavator - Google Patents

Abstract

A worm wheel type chassis of an amphibious excavator includes a body, which includes a hydraulic arm, a rotating unit, and a power module. The power module drives the hydraulic arm and the rotating unit. The rotating unit is arranged at the bottom of the body so that the body is on a horizontal surface. Rotation; and a screw-type chassis, which includes a frame and two screw drive units, the frame is connected to the rotating unit at the bottom of the body and extends downwards, and each screw drive unit is rotatably connected to the bottom of the frame at the front and rear ends, respectively On the front and back sides, each screw transmission unit has an external thread part and a buoyancy space respectively. The rotation direction of each external thread part is oppositely arranged, and each screw transmission unit is driven by a power module. The invention avoids falling into the mud with high water content by the buoyancy space of each screw transmission unit, and moves and changes direction by the rotation of each screw transmission unit, and can work in the mud where the traditional crawler hand cannot walk.

Description

Worm-wheel chassis of amphibious excavator

The invention relates to a mobile excavator, in particular to a worm wheel chassis of an amphibious excavator that can move in swamps or mud.

In recent years, the probability of extreme climates has risen sharply, and the importance of waterproofing and flood prevention has become more and more important. All kinds of flood control channels and drainage ditches are being built, but the flood control channels will accumulate many sediments such as mud, If rubble and rubbish are not removed, it will affect the efficiency of flood control. However, the flood control channel is soaked in the water most of the time. If the conventional crawler hand is used for excavation, the crawler is easily trapped in the mud with high water content, causing the crawler hand to be unable to move smoothly; or the rock may be broken. As the crawler moves and jams the gear used to drive the crawler, it will be inconvenient for the conventional crawler hand to use it in mud or swamp terrain.

In view of this, the inventor of the present invention devotes himself to research and design, and hopes to provide a device that can operate in mud or swamp, which is the motivation of the invention.

The main purpose of the worm wheel chassis of the amphibious excavator of the present invention is to provide a worm wheel chassis of the amphibious excavator that can run in mud or swamps. The screw drive unit with buoyancy space enables the device to be placed on the mud or swamp. Without sinking, it can smoothly carry out digging operations in the terrain that is easy to sink.

The worm wheel chassis of an amphibious excavator of the present invention includes a body, which includes a hydraulic arm, a rotating unit, and a power module. The power module drives the hydraulic arm and the rotating unit. The rotating unit is arranged at the bottom of the body so that the body is Rotating on a horizontal plane; and a screw-type chassis, which includes a frame and two screw drive units, the frame is coupled to the rotation unit at the bottom of the body and extends downward, and each screw drive unit is rotatably coupled to the two bottom ends of the frame. On the side, the front and rear ends of each screw transmission unit are rotatably connected to the left or right front and rear ends of the frame. Each screw transmission unit has an external thread part and a buoyancy space, and the rotation direction of each external thread part is oppositely arranged , Each screw drive unit is driven by the power module.

The present invention provides buoyancy in mud or marsh terrain through the buoyancy space contained in each screw drive unit, so that the present invention will not sink into mud or marsh terrain like conventional crawler implements, and there is no need to worry about foreign matter jamming the crawler.

Since the rotation directions of the external thread parts are set relative to each other, when the two screw drive units rotate toward the inside or outside of the screw chassis at the same time, the lateral power will cancel each other out, allowing the present invention to move forward or backward in a straight line; The speed and direction of the screw drive unit can allow the present invention to turn freely without restriction.

The hydraulic arm can be connected to a bucket to excavate the silt in the flood channel. The power module can include a diesel engine and at least one hydraulic pump. The hydraulic pump can transmit hydraulic power to the hydraulic arm, the rotating unit, and each screw drive unit. Each screw transmission unit may include at least one screw rotation element in the buoyancy space, each screw rotation element rotates each screw transmission unit, each screw rotation element is driven by a power module, and each screw rotation element can be driven by hydraulic pressure. The skeleton can be formed by combining hollow pipes, which reduces the weight of the spiral chassis and makes the invention less likely to fall into mud or swamp terrain.

In order to further understand the features, characteristics and technical content of the present invention, please refer to the following detailed description of the present invention.

Please refer to Figures 1 to 3, which reveal the drawings of the embodiments of the present invention. The worm wheel chassis of the amphibious excavator of the present invention includes a body 1, which includes a hydraulic arm 10, a rotating unit 12, and a power model. Group 11, the power module 11 drives the hydraulic arm 10 and the rotating unit 12. The rotating unit 12 is arranged at the bottom end of the body 1 to rotate the body on a horizontal surface. In this embodiment, the hydraulic arm 10 is connected to a bucket 101, and the hydraulic arm 10 is connected to The bucket 101 allows the present invention to carry out silt excavation or other operations in flood channels; and a spiral chassis 2, which includes a skeleton 20 and two screw transmission units 21. The skeleton 20 is coupled to the rotating unit 12 at the bottom of the body 1 And extend downwards, the rotating unit 12 is driven by the power module 11, each screw transmission unit 21 is rotatably coupled to the bottom two sides of the frame 20, and the front and back ends of each screw transmission unit 21 are rotatably coupled to the frame On the left and right front and rear ends of 20, each screw transmission unit 21 has an external thread portion 211 and a buoyancy space 212 respectively. The rotation direction of each external screw portion 211 is oppositely arranged, and each screw transmission unit 21 is driven by the power module 11. In this embodiment, each screw transmission unit 21 is a hollow cylinder with tapered ends, so there is a buoyancy space 212 inside.

In this embodiment, the power module 11 includes a diesel engine (not shown) and at least one hydraulic pump (not shown). The diesel engine (not shown) can drive the hydraulic pump (not shown), and the hydraulic pump (not shown) is available. It is used to convey hydraulic power to drive other parts (for example: the hydraulic arm 10, the rotating unit 12, and the screw rotating elements 213 inside the screw transmission units 21 described later); it is located in front of the hydraulic arm 10 when looking at this embodiment, the left hand side The outer thread portion 211 of the screw transmission unit 21 extends backward in a counterclockwise direction, and the outer thread portion 211 of the screw transmission unit 21 on the right hand side extends backward in a clockwise direction. Each screw transmission unit 21 may respectively include at least one screw rotation element 213 in the buoyancy space 212. In this embodiment, each screw transmission unit 21 has a screw rotation element 213 at the front and back ends. Each screw rotation element 213 enables each screw to drive The unit 21 rotates, and each screw rotating element 213 is driven by the power module 11. In this embodiment, each screw rotating element 213 may be hydraulically driven.

In the fourth figure, it can be seen that the buoyancy space 212 contained in each screw drive unit 21 provides buoyancy in mud or swamp and other muddy terrain A in the present invention, so that the present invention is not like conventional crawler equipment. If you are caught in the water and mud terrain A, you don’t have to worry about the foreign matter in the water and mud terrain A that may jam the track and cause the track failure; then use the hydraulic arm 10 and bucket 101 of the present invention to excavate, you can smoothly remove the silt and other objects. The rotating unit 12 Allows the present invention to rotate the main body 1 to perform excavation operations in all directions around it. The skeleton 20 can be formed by combining hollow pipes, which reduces the weight of the spiral chassis 2 and makes the present invention less likely to fall into the water and mud terrain A.

When each screw transmission unit 21 rotates, each external thread part 211 will apply force externally, so each screw transmission unit 21 will generate longitudinal and lateral driving force at the same time when rotating; because the rotation direction of each external thread part 211 is relative When the two screw drive units 21 rotate toward the inside or outside of the screw chassis 2 at the same time, the lateral driving forces will cancel each other, so that the present invention can move forward or backward in a straight line; adjust the rotation of each screw drive unit 21 Speed and direction allow the invention to turn freely without restriction.

The relationship between the moving direction of the embodiment of the present invention and the rotation direction of each screw transmission unit 21 can be seen in the fifth to twelfth figures; in the fifth and sixth figures, the two screw transmission units 21 are facing the screw at the same time. When the inner or outer side of the type chassis 2 rotates at a constant speed, that is, when the rotation directions of the screw transmission units 21 are different, since the rotation directions of the external threaded parts 211 are arranged oppositely, the lateral power will cancel each other out. The invention can move forward or backward in a straight line; and in the seventh and eighth figures, the two screw transmission units 21 rotate in the same direction at the same speed at the same time, so that the forward or backward power can offset each other, so that the present invention can move laterally; In the ninth and tenth figures, when the rotation speed of the screw drive unit 21 on one side toward the inside of the screw chassis 2 is greater than that of the other side, the lateral force generated by the screw drive unit 21 with a fast rotation speed is larger. It will be biased toward the slower speed side, so that the present invention can move forward and turn. The slower speed screw drive unit 21 can be used to adjust the turning route, so that the present invention can correspond to various angles of curves; in the eleventh figure, In Figure 12, when one side of the screw drive unit 21 rotates to the outside of the spiral chassis 2 at a speed greater than the other side, the present invention will tend to retreat and turn to the side with a faster speed. The slower speed screw can also be used. The transmission unit 21 adjusts the turning route.

However, the above are only the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. Any changes and modifications that can be obviously made by those who are accustomed to the industry should be regarded as not deviating from them. The essence of the present invention.

1: body 10: Hydraulic arm 101: Bucket 11: Power module 12: Rotating unit 2: Spiral chassis 20: skeleton 21: Screw drive unit 211: External thread 212: Buoyancy Space 213: Spiral rotating element A: Water and mud terrain

The first figure is a perspective view of the present invention. The second picture is the bottom angle of the first picture. The third picture is the front view angle of the first picture. The fourth figure is a schematic diagram of the use of the present invention. The fifth figure is a schematic diagram (1) of the movement method of the present invention. The sixth figure is a schematic diagram (2) of the movement method of the present invention. The seventh figure is a schematic diagram (3) of the movement method of the present invention. Figure 8 is a schematic diagram (4) of the movement method of the present invention. The ninth figure is a schematic diagram (5) of the movement method of the present invention. Figure 10 is a schematic diagram (6) of the movement method of the present invention. Figure 11 is a schematic diagram (7) of the mobile mode of the present invention. Figure 12 is a schematic diagram (8) of the mobile mode of the present invention.

without

1: body

10: Hydraulic arm

101: Bucket

11: Power module

2: Spiral chassis

20: skeleton

21: Screw drive unit

211: External thread

212: Buoyancy Space

Claims (4)

A worm wheel type chassis of an amphibious excavator, comprising: a body including a hydraulic arm, a rotating unit, and a power module; the power module drives the hydraulic arm and the rotating unit; the rotating unit is arranged at the bottom of the body The end causes the main body to rotate on a horizontal plane; and a spiral chassis, which includes a frame and two screw transmission units, the frame is coupled to the rotation unit at the bottom end of the main body and extends downward, and the frame is formed by combining hollow pipes , Each screw transmission unit is rotatably coupled to both sides of the bottom end of the frame, the front and back ends of each screw transmission unit are rotatably coupled to the front and back ends of the frame, and each screw transmission unit has an outer The threaded part and a buoyancy space, the rotation directions of the external threaded parts are relatively arranged, and each of the screw transmission units is driven by the power module. The worm-wheel type chassis of an amphibious excavator according to claim 1, wherein the hydraulic arm is connected to a bucket. The worm wheel chassis of an amphibious excavator according to claim 1, wherein the power module includes a diesel engine and at least one hydraulic pump. The worm-wheel chassis of an amphibious excavator according to claim 1, wherein each screw transmission unit includes at least one screw rotation element in the buoyancy space, each screw rotation element makes each screw transmission unit rotate, and each screw The rotating element is driven by the power module.

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