T-shaped cutting knife for amphibious vehicle

Abstract

The utility model discloses a T-shaped cutting knife for amphibious vehicles, which belongs to the technical field of water area cleaning knife design, and comprises a knife rest, a driving component, a vertical knife assembly and a transverse knife assembly, a motor of the driving component is arranged at the top of the knife rest, a turntable is arranged at the outer end of a driving shaft, an eccentric shaft is arranged on the turntable, and the vertical knife assembly is arranged on the vertical knife assembly. The eccentric shaft is simultaneously connected with a vertical cutter follow-up arm and a transverse cutter follow-up arm through a transmission arm, the vertical cutter assembly comprises a movable vertical cutter and a fixed vertical cutter, and the transverse cutter assembly comprises two movable transverse cutters. Compared with an existing structure, a multi-connecting-rod transmission mechanism is utilized, the vertical cutter assembly and the transverse cutter assemblies can be driven at the same time only through a single motor, large-rod-diameter emergent aquatic plants or reeds can be cut, the service life of the motor can be prolonged due to the fact that the motor is arranged on the water surface, in addition, the cutting directions of blades of the two movable transverse cutters move symmetrically, and the cutting efficiency is improved. Impact can be effectively counteracted, and the stability of equipment in the working process is improved.

Description

Technical Field

[0001] This utility model belongs to the field of amphibious operation tool design technology, and in particular relates to a T-shaped cutter for amphibious vehicles. Background Technology

[0002] In recent years, with the rapid development of my country's economy, the demand for ecological environmental protection and water management has become increasingly urgent. In complex aquatic operation scenarios such as coastal mudflat management, reclamation projects, saline-alkali land restoration, and river dredging, traditional land-based engineering machinery has significant limitations due to its inability to adapt to shallow water, silt, or swampy environments. Therefore, amphibious vehicles have become a key technological equipment for solving these problems. By integrating a special chassis and operating devices, they achieve seamless switching between land and water environments. Among these components, the plant cutter, as the core functional component of the amphibious vehicle, directly determines the efficiency and stability of underwater vegetation cutting.

[0003] Currently, most aquatic plant cutters used in the industry are based on a single transverse cutting structure design, that is, cutting vegetation unidirectionally through horizontally arranged blades. However, this design has two major technical bottlenecks in practical applications: First, due to the lack of vertical cutting assistance, the blades are prone to low efficiency when working with highly resilient or complex-rooted vegetation such as aquatic plants and reeds, and may even experience problems such as entanglement and jamming. Second, during continuous operation, the movement of multiple blades in the same direction during transverse cutting generates a continuous unidirectional impact force. Especially under buoyancy-supported water surface conditions, this unidirectional load can cause lateral displacement of the hull or capsizing moment, seriously threatening operational stability and safety.

[0004] Although existing technologies have attempted to improve cutting efficiency by increasing the number of blades or optimizing material strength, the inherent limitations of the unidirectional cutting mode have prevented an effective solution to the hull disturbance problem caused by mechanical imbalance. Therefore, overcoming the unidirectional mechanical characteristics of existing cutting blades and achieving a synergistic improvement in efficient cutting and operational stability through structural innovation remains a pressing challenge for engineers in this field. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a T-shaped cutter for amphibious vehicles, which solves the problems through the following technical means:

[0006] A T-shaped cutter for amphibious vehicles, characterized in that it comprises a cutter holder, a drive assembly, a vertical cutter assembly, and a horizontal cutter assembly, wherein: the motor of the drive assembly is mounted on the top of the cutter holder, the motor shaft is connected to a drive shaft via a coupling, the drive shaft is rotatably mounted in a drive bearing seat on the top, a turntable is mounted on the outer end of the drive shaft, an eccentric shaft is provided on the turntable, the eccentric shaft is connected to one end of a transmission arm, and the other end of the transmission arm is simultaneously connected to one end of a vertical cutter follower arm and one end of a horizontal cutter follower arm via a turntable; the middle of the vertical cutter follower arm is open... The vertical cutter follower arm is connected to the tool holder via a rotating shaft. The other end of the vertical cutter follower arm is connected to one end of the vertical cutter drive arm via a rotating shaft, and the other end of the vertical cutter drive arm is connected to the vertical cutter assembly. The other end of the horizontal cutter follower arm is mounted on the transmission block of the horizontal cutter drive shaft via a rotating shaft. The drive shaft is mounted in the horizontal cutter bearing seat. The horizontal cutter drive shaft swings synchronously with the transmission block. The outer end of the horizontal cutter drive shaft is fixed in the middle hole of the horizontal cutter swing arm. Side holes are symmetrically opened on both sides of the horizontal cutter swing arm. One end of the horizontal cutter connecting arm is connected to the side hole via a rotating shaft, and the other end of the horizontal cutter connecting arm is connected to the horizontal cutter assembly.

[0007] Preferably, the blade holder includes a load-bearing beam, a top cover, a bottom cover, a connecting frame, and a positioning frame, wherein: the upper and lower ends of the load-bearing beam are respectively provided with a top cover and a bottom cover, the inner side of the load-bearing beam is provided with a connecting frame for connecting to the amphibious vehicle, and the outer side of the load-bearing beam is provided with a positioning frame for installing the vertical blade assembly.

[0008] Preferably, the vertical blade assembly includes a movable vertical blade and a fixed vertical blade. The fixed vertical blade is fixed on the positioning frame and has multiple vertical blade guide grooves symmetrically formed on it. The movable vertical blade is movably installed in the vertical blade guide groove through a guide block. The upper side of the movable vertical blade is connected to the lower hole of the vertical blade drive arm through a rotating shaft. The up-and-down swing of the vertical blade drive arm drives the movable vertical blade to perform a cutting motion relative to the fixed vertical blade.

[0009] Preferably, the cross-blade assembly includes two stacked, top-moving cross-blades and a bottom-moving cross-blade, wherein:

[0010] Both the top-moving and bottom-moving cross blades are vertically equipped with cross blade connecting seats. The cross blade connecting seats are connected to the other end of the cross blade connecting arm via a rotating shaft. The cross blade swing arm drives the top-moving and bottom-moving cross blades to move symmetrically through the cross blade connecting arms on both sides. Both the top-moving and bottom-moving cross blades are equipped with guide holes. The guide hole of the top-moving cross blade is connected to the outer end of the upper guide arm via an elastic shaft. The inner end of the upper guide arm is rotatably mounted on the upper swing seat. The guide hole of the bottom-moving cross blade is connected to the outer end of the lower guide arm via an elastic shaft. The inner end of the lower guide arm is rotatably mounted in the lower swing seat. Under the guidance of the upper and lower guide arms, the top-moving and bottom-moving cross blades closely adhere to each other to complete the cutting motion.

[0011] The T-shaped cutter for amphibious vehicles of this invention has the following beneficial effects:

[0012] The device's T-shaped cutter structure allows for the cutting of large-diameter emergent aquatic plants or reeds. Its top-mounted motor design enables both above-water and underwater plant cutting, with the motor always positioned above the water surface to extend its lifespan. A single motor drive, via a linkage mechanism, allows for simultaneous operation of the vertical and main cutters. The two moving horizontal blades move symmetrically in their cutting directions, effectively mitigating impact and improving the device's stability during operation. The vertical blade also prevents cut plants from tangling or piling up on the blade holder. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the drive component structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross blade assembly structure of this utility model;

[0018] Figure 5 This is a top view schematic diagram of the cross blade assembly of this utility model;

[0019] Figure 6 yes Figure 5 Sectional view of section AA;

[0020] Figure 7 yes Figure 5 BB section sectional view.

[0021] Among them, 1-tool holder, 101-load-bearing beam, 102-top cover, 103-bottom cover, 104-connecting frame, 105-positioning frame, 2-drive assembly, 201-motor, 202-drive shaft, 203-drive bearing seat, 204-turntable, 205-eccentric shaft, 206-transmission arm, 207-vertical cutter follower arm, 208-horizontal cutter follower arm, 209-vertical cutter drive arm, 210-horizontal cutter drive shaft, 211-horizontal cutter bearing seat, 212-horizontal cutter swing arm, 213-horizontal cutter connecting arm, 3-vertical cutter assembly, 301-moving vertical cutter, 302-fixed vertical cutter, 303-vertical cutter guide groove, 4-horizontal cutter assembly, 401-top moving horizontal cutter, 402-bottom moving horizontal cutter, 403-horizontal cutter connecting seat, 404-guide hole. 405 - Upper guide arm, 406 - Upper swing seat, 407 - Lower guide arm, 408 - Lower swing seat. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1 to 4As shown, the amphibious vehicle T-shaped cutter includes a cutter holder 1, a drive assembly 2, a vertical cutter assembly 3, and a horizontal cutter assembly 4. In the figure: the motor 201 of the drive assembly 2 is mounted on top of the cutter holder 1. The shaft of the motor 201 is connected to the drive shaft 202 via a coupling. The drive shaft 202 is rotatably mounted in a drive bearing seat 203 at the top. A turntable 204 is mounted on the outer end of the drive shaft 202. An eccentric shaft 205 is provided on the turntable 204. The eccentric shaft 205 is connected to one end of a transmission arm 206. The other end of the transmission arm 206 is simultaneously connected to one end of a vertical cutter follower arm 207 and one end of a horizontal cutter follower arm 208 via a shaft. The middle part of the vertical cutter follower arm 207... The vertical cutter follower arm 207 is connected to the tool holder 1 via a rotating shaft. The other end of the vertical cutter follower arm 207 is connected to one end of the vertical cutter drive arm 209 via a rotating shaft. The other end of the vertical cutter drive arm 209 is connected to the vertical cutter assembly 3. The other end of the horizontal cutter follower arm 208 is mounted on the transmission block of the horizontal cutter drive shaft 210 via a rotating shaft. The drive shaft 210 is mounted in the horizontal cutter bearing seat 211. The horizontal cutter drive shaft 210 swings synchronously with the transmission block. The outer end of the horizontal cutter drive shaft 210 is fixed in the middle hole of the horizontal cutter swing arm 212. The horizontal cutter swing arm 212 has symmetrical side holes on both sides. One end of the horizontal cutter connecting arm 213 is connected to the side hole via a rotating shaft. The other end of the horizontal cutter connecting arm 213 is connected to the horizontal cutter assembly 4.

[0025] In actual operation, the drive motor is connected to the cutter holder via a motor mounting plate, driving the drive disc, which in turn drives the connecting rod, the long connecting rod swing block, and the drive shaft. The drive shaft performs a oscillating reciprocating motion, and the connecting rod, connected to the drive shaft, drives the upper and lower blades to perform a reciprocating relative motion, completing the cutting action. The intermediate connecting rod and the fixed blade of the vertical blade assembly are fixed on the cutter holder. The connecting rod drives the intermediate connecting rod to move, which in turn drives the vertical blade to move up and down, completing the cutting. In addition, the T-shaped cutter structure of this mechanism can cut large-diameter emergent aquatic plants or reeds. A single motor drive, through a linkage mechanism, can achieve simultaneous drive of the vertical blade and the main cutter.

[0026] In the figure, the blade holder 1 includes a load-bearing beam 101, a top cover 102, a bottom cover 103, a connecting frame 104, and a positioning frame 105. The top cover 102 and the bottom cover 103 are respectively provided at the upper and lower ends of the load-bearing beam 101. The connecting frame 104 for connecting the amphibious vehicle is provided on the inner side of the load-bearing beam 101, and the positioning frame 105 for installing the vertical blade assembly 3 is provided on the outer side of the load-bearing beam 101. Specifically, the top cover 102 has a splash-proof function and adopts a motor-mounted structure, which can be used for cutting plants both above and below water. The motor is always placed on the water surface, which improves the service life of the motor.

[0027] In the figure, the vertical blade assembly 3 includes a movable vertical blade 301 and a fixed vertical blade 302. The fixed vertical blade 302 is fixed on the positioning frame 105. Multiple vertical blade guide grooves 303 are symmetrically formed on the fixed vertical blade 302. The movable vertical blade 301 is movably mounted within the vertical blade guide grooves 303 via guide blocks. The upper side of the movable vertical blade 301 is connected to the lower hole of the vertical blade drive arm 209 via a rotating shaft. The up-and-down swinging of the vertical blade drive arm 209 drives the movable vertical blade 301 to perform a cutting motion relative to the fixed vertical blade 302. Specifically, the vertical blades prevent the cut plants from tangling and piling up on the blade holder.

[0028] In the figure, the cross-blade assembly 4 includes two stacked top-moving cross-blades 401 and bottom-moving cross-blades 402. Both the top-moving cross-blade 401 and the bottom-moving cross-blade 402 are vertically equipped with cross-blade connecting seats 403. The cross-blade connecting seats 403 are connected to the other end of the cross-blade connecting arm 213 via a pivot. The cross-blade swing arm 212 drives the top-moving cross-blade 401 and the bottom-moving cross-blade 402 to move symmetrically via the cross-blade connecting arms 213 on both sides. Guide holes 404 are provided on the cutting edges of both the top-moving cross-blade 401 and the bottom-moving cross-blade 402. The upper guide arm 405 is connected to the outer end of the guide hole 404 of the top moving cross blade 401 through an elastic shaft. The inner end of the upper guide arm 405 is rotatably mounted on the upper swing seat 406. The lower guide arm 407 is connected to the outer end of the guide hole 404 of the bottom moving cross blade 402 through an elastic shaft. The inner end of the lower guide arm 407 is rotatably mounted in the lower swing seat 408. The top moving cross blade 401 and the bottom moving cross blade 402 complete the cutting motion by sticking closely together under the guidance of the upper guide arm 405 and the lower guide arm 407.

[0029] Specifically, the elastic shaft can be made of hard rubber, which has a certain elastic deformation capability. The upper and lower swing seats are alternately and equidistantly fixed to the inner side of the bottom crossbeam of the tool holder. In actual operation, the cutting directions of the two moving crossbeams move symmetrically, which can effectively offset the impact and improve the stability of the equipment during operation.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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. Such 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 this utility model.

Claims

1. A T-shaped cutter for amphibious vehicles, characterized in that, It includes a tool holder (1), a drive assembly (2), a vertical tool assembly (3), and a horizontal tool assembly (4), wherein: The motor (201) of the drive assembly (2) is mounted on the top of the tool holder (1). The rotating shaft of the motor (201) is connected to the drive shaft (202) through a coupling. The drive shaft (202) is rotatably mounted in the drive bearing seat (203) on the top. A turntable (204) is mounted on the outer end of the drive shaft (202). An eccentric shaft (205) is provided on the turntable (204). The eccentric shaft (205) is connected to one end of the transmission arm (206). The other end of the transmission arm (206) is connected to one end of the vertical cutter follower arm (207) and one end of the horizontal cutter follower arm (208) through the rotating shaft. The middle part of the vertical blade follower arm (207) is connected to the blade holder (1) via a rotating shaft, and the other end of the vertical blade follower arm (207) is connected to one end of the vertical blade drive arm (209) via a rotating shaft. The other end of the vertical blade drive arm (209) is connected to the vertical blade assembly (3). The other end of the cross-blade follower arm (208) is mounted on the transmission block of the cross-blade drive shaft (210) via a rotating shaft. The cross-blade drive shaft (210) is mounted in the cross-blade bearing seat (211). The cross-blade drive shaft (210) swings synchronously with the transmission block. The outer end of the cross-blade drive shaft (210) is fixedly connected to the middle hole of the cross-blade swing arm (212). Side holes are symmetrically opened on both sides of the cross-blade swing arm (212). One end of the cross-blade connecting arm (213) is connected to the side hole via a rotating shaft. The other end of the cross-blade connecting arm (213) is connected to the cross-blade assembly (4).

2. The T-shaped cutter for amphibious vehicles according to claim 1, characterized in that, The tool holder (1) includes a load-bearing beam (101), a top cover (102), a bottom cover (103), a connecting frame (104), and a positioning frame (105), wherein: The upper and lower ends of the load-bearing beam (101) are respectively provided with a top cover (102) and a bottom cover (103). The inner side of the load-bearing beam (101) is provided with a connecting frame (104) for connecting the amphibious vehicle, and the outer side of the load-bearing beam (101) is provided with a positioning frame (105) for installing the vertical blade assembly (3).

3. The T-shaped cutter for amphibious vehicles according to claim 1, characterized in that, The vertical blade assembly (3) includes a movable vertical blade (301) and a fixed vertical blade (302). The fixed vertical blade (302) is fixed on the positioning frame (105). Multiple vertical blade guide grooves (303) are symmetrically opened on the fixed vertical blade (302). The movable vertical blade (301) is movably installed in the vertical blade guide groove (303) through a guide block. The upper side of the movable vertical blade (301) is connected to the lower hole of the vertical blade drive arm (209) through a rotating shaft. The up and down swing of the vertical blade drive arm (209) drives the movable vertical blade (301) to perform a cutting motion relative to the fixed vertical blade (302).

4. The T-shaped cutter for amphibious vehicles according to claim 1, characterized in that, The cross-cutting assembly (4) includes two stacked top-moving cross-cutting blades (401) and bottom-moving cross-cutting blades (402), wherein: Both the top-moving cross blade (401) and the bottom-moving cross blade (402) are vertically equipped with cross blade connecting seats (403). The cross blade connecting seats (403) are connected to the other end of the cross blade connecting arm (213) via a rotating shaft. The cross blade swing arm (212) drives the top-moving cross blade (401) and the bottom-moving cross blade (402) to move symmetrically through the cross blade connecting arms (213) on both sides. Both the top-moving cross blade (401) and the bottom-moving cross blade (402) are provided with guide holes (404). The guide hole (404) of the top-moving cross blade (401) is filled with... The outer end of the upper guide arm (405) is connected by an elastic shaft. The inner end of the upper guide arm (405) is rotatably mounted on the upper swing seat (406). The guide hole (404) of the bottom moving cross blade (402) is connected to the outer end of the lower guide arm (407) by an elastic shaft. The inner end of the lower guide arm (407) is rotatably mounted on the lower swing seat (408). The top moving cross blade (401) and the bottom moving cross blade (402) complete the cutting motion by sticking tightly to each other under the guidance of the upper guide arm (405) and the lower guide arm (407).

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