A track structure for an amphibious assault vehicle

Abstract

The invention discloses a track structure suitable for amphibious landing combat vehicle, which comprises track shoes, track tooth columns and track tooth plates. The track shoes are provided with several track shoes, and all the track shoes are connected in sequence from head to tail along the width direction to form a track chain ring. Each track shoe is provided with a group of track tooth columns, each group of track tooth columns comprises multiple track tooth columns, one end of the track tooth column is movably inserted into the track shoe, and the other end is located outside the track shoe. The track tooth plate is arranged perpendicularly to the outer surface of the track shoe. The two ends of each track tooth plate are hingedly connected to the track tooth column, and one side of each track tooth plate is movably inserted into the track shoe. The left and right ends of the track tooth plate are symmetrically provided with two sealing assemblies which are matched with the corresponding ends of the track tooth plate. The track tooth column and the track tooth plate are movably connected to the track shoe. When walking on soft ground, sandy ground and hard ground, the track tooth can be automatically adjusted to meet the requirements of various road surfaces on the track performance.

Description

Technical Field

[0001] This invention relates to the field of tracked landing vehicle equipment technology, specifically to a track structure suitable for amphibious landing combat vehicles. Background Technology

[0002] In recent years, with the continuous development of military technology, amphibious landing operations have become an indispensable combat method in modern warfare. They allow troops to directly attack the enemy's coastline from the sea, thereby rapidly occupying enemy territory. In amphibious landing operations, tanks, as crucial combat equipment, can provide fire support on the beach and rapidly advance on land to seize enemy positions. Their performance and quality directly affect the success or failure of the operation. Therefore, improving the amphibious landing capabilities of tanks has become an important research direction in the field of military technology. In tank amphibious landing operations, the performance and quality of the tracks are paramount, allowing the tank to move freely on various terrains and better complete its combat missions.

[0003] Amphibious landing operations are a crucial tactical tool in modern warfare, and tidal flats are among the most challenging terrains for amphibious landings. Tidal flats are characterized by low-lying terrain, siltation, abundant vegetation, and soft ground, placing extremely high demands on equipment. When moving on soft ground such as sandy beaches and tidal flats, tracked landing vehicles are easily silted up, resulting in shallow track penetration and insufficient shear resistance to provide adequate traction. The tracks of tracked landing vehicles are prone to slipping, leading to stagnation and inability to move normally. Currently, the track teeth of amphibious landing vehicles are fixedly connected to the track plates. While lengthening the track teeth can improve performance on soft ground, it results in lower ground pressure on gravel or areas with reefs, affecting the vehicle's maneuverability. Lengthened track teeth also reduce speed on hard ground. Therefore, existing technology urgently needs further improvement. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of this invention is to propose a track structure suitable for amphibious landing vehicles, which solves the problem that the tracks of existing amphibious landing tracked vehicles are fixed to the track plates, which cannot meet the different requirements of track penetration depth on sandy and gravelly ground, thus limiting the mobility of tracked vehicles during amphibious landing.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0006] A track structure suitable for amphibious landing combat vehicles includes track plates, track teeth, and track teeth plates. The track plates are rectangular plate-shaped structures made of alloy steel. There are several track plates, and all track plates are connected end to end in sequence along their width direction to form track links. The track links are installed on sprockets on both sides of the amphibious landing combat vehicle.

[0007] Each track plate is provided with at least one set of track teeth. Each set of track teeth includes multiple track teeth arranged at equal intervals along the length of the track plate. One end of each track tooth is movably inserted into the inside of the track plate, and the other end is located outside the track plate.

[0008] Between any two adjacent track tooth columns in the same group, there is a track tooth plate, which is a rectangular flat plate and is arranged perpendicular to the outer surface of the track plate.

[0009] Each track tooth plate has its left and right ends hinged to two adjacent track tooth columns, and one side of each track tooth plate is inserted into the inside of the track plate and slides and seals with the track plate.

[0010] Two sealing components are symmetrically provided at the left and right ends of the track tooth plate. The sealing components are installed inside the track plate and cooperate with the corresponding ends of the track tooth plate.

[0011] Furthermore, two track pins are provided at the left and right ends of the track plate respectively. The two track pins on the same side are located on both sides of the track plate in the width direction, and one end of the track pin is fixed to the end face of the track plate.

[0012] Two adjacent track pins located on the same side and close to each other are connected by an end connector, and the other end of the track pin passes through the end connector and rotates with it.

[0013] Furthermore, the track plate has tunnel cavities that are equal in number and correspond one-to-one in position to the track teeth, and the tunnel cavities communicate with the outside through openings located on the outer surface of the track plate.

[0014] Each tunnel cavity is equipped with a tunnel slider, which slides linearly against the inner wall of the tunnel cavity.

[0015] One end of the toothed column is fixedly connected to the tunnel slider as an integral structure, and a first spring is provided on the side of the tunnel slider away from the toothed column.

[0016] Furthermore, the tunnel cavity has an inwardly extending annular limiting part at the opening on the outer surface of the track plate, which can prevent the tunnel slider from falling out. At least one annular sealing ring is fixedly embedded on the inner wall of the annular limiting part.

[0017] The track tooth column is a circular or square columnar structure, and its outer wall is slidably sealed to the track plate through an annular sealing ring.

[0018] Furthermore, the inner surface of the track plate is provided with cover plates that are equal in number and correspond one-to-one with the tunnel cavities. The cover plates are bolted to the track plates to close the openings of the tunnel cavities located on the inner surface of the track tooth plates.

[0019] A rubber sealing ring is provided between each of the cover plates and the track plates, and one end of each of the first springs is fixedly connected to the corresponding cover plate.

[0020] Furthermore, the track plate has slots that are equal in number and correspond one-to-one with the track tooth plates. One side of the track tooth plate is located in the corresponding slot and slides and seals with the inner side wall of the slot.

[0021] Furthermore, each track tooth plate has two symmetrical support arms on the left and right ends of the side away from the track plate. One end of each support arm is fixedly connected to the side end of the track tooth plate, and the other end is rotatably connected to the side of the adjacent track tooth column through a pin.

[0022] The side wall of the toothed column is provided with a crescent groove, and the pin is located in the crescent groove, with its two ends fixedly connected to the toothed column.

[0023] Furthermore, the length of the slot is greater than the length of the toothed plate, the depth of the slot is less than the width of the toothed plate, and the thickness of the toothed plate is equal to the width of the slot.

[0024] Furthermore, two spring cavities are symmetrically provided on the outside of each track plate on the left and right sides of each slot, and one side of each spring cavity is connected to the adjacent slot.

[0025] The sealing assembly includes a sealing plate and a compression spring. The compression spring is located inside the spring cavity. The sealing plate is laterally slidably disposed inside one end of the slot. One end of the sealing plate extends into the spring cavity and contacts and engages with the compression spring, while the other end contacts and slides with the corresponding side of the toothed plate.

[0026] Furthermore, two symmetrical sliding grooves are provided on the two side walls of the track plate in the thickness direction of the groove. One end of the sliding groove extends into the interior of the spring cavity, and the two sides of the sealing plate are respectively inside the two sliding grooves, and slide laterally with the track tooth plate.

[0027] One end of the sealing plate is fixedly connected to the limiting head that is slidably set in the spring cavity, and the other end is provided with a square insertion groove. The width of the insertion groove is equal to the thickness of the toothed plate, and the side of the toothed plate is located in the insertion groove.

[0028] By adopting the above technical solution, the beneficial technical effects of this invention are as follows: The track teeth and track plates of this invention are adjustablely connected to the track plates. When traveling on soft ground, gravel ground, and hard ground, the penetration depth of the track teeth can be automatically adjusted to meet the performance requirements of various road surfaces. When traveling on soft ground, the penetration depth of the track teeth is greater, resulting in greater shear resistance, which can improve the traction of the amphibious tracked vehicle and prevent slippage or sinking. When traveling on gravel or hard ground, the penetration resistance is greater, and the track teeth and track plates will partially retract into the track plates, so that the track obtains better ground pressure, good maneuverability, and high travel speed, and prevents the track teeth from getting stuck. When traveling in water, the track teeth and track plates will reach their maximum extension, playing a paddling role, which can increase the travel speed of the amphibious vehicle in water and accelerate the landing progress. Attached Figure Description

[0029] Figure 1 This is a partial schematic diagram of a track structure applicable to amphibious landing vehicles according to the present invention.

[0030] Figure 2 This is a three-dimensional structural diagram of the track plate of the present invention.

[0031] Figure 3 This is a cross-sectional view of a track structure applicable to amphibious landing vehicles according to the present invention.

[0032] Figure 4 yes Figure 2 A magnified view of part A in the middle.

[0033] Figure 5 yes Figure 3 A magnified view of part B in the middle section.

[0034] Figure 6 yes Figure 5 The diagram shows a portion of the sealing plate. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings:

[0036] Implementation examples, in conjunction with Figures 1 to 6 A track structure suitable for amphibious landing combat vehicles includes track plates 1, track teeth 2 and track teeth 3. The track plates 1 are rectangular plate structures made of alloy steel. There are several track plates 1. All track plates 1 are connected end to end in sequence along their width direction to form track links. The track links are installed on the sprockets on both sides of the amphibious landing combat vehicle to realize its walking function.

[0037] Specifically, two track pins 4 are respectively provided at the left and right ends of the track plate 1. The two track pins 4 on the same side are located on both sides of the track plate 1 in the width direction. One end of the track pin 4 is fixed to the end face of the track plate 1, and the other end of the track pin 4 has an annular groove. A shaft spring retainer is provided inside the annular groove. In addition, a rubber layer is vulcanized on the outer circumference of the track pin 4. Two track pins 4 located on the same side and close to each other on two adjacent track plates 1 are connected by an end connector 41. The end connector 41 has two through holes. The other end of the track pin 4 passes through the end connector 41 and rotates with it, so that the two adjacent track plates 1 on the side close to each other are rotatably connected by the end connector 41.

[0038] Each track plate 1 has one or two sets of track teeth 2 on its outer surface. Each set of track teeth 2 includes multiple track teeth 2 arranged at equal intervals along the length of the track plate 1. One end of each track tooth 2 is movably inserted into the inside of the track plate 1, and the other end is located on the outside of the track plate 1. The surface of the track plate 1 located outside the track chain link is its outer surface, and the surface of the track plate 1 located inside the track chain link is its inner surface.

[0039] Specifically, the track plate 1 has tunnel cavities 11, the number of which are equal to and the positions of the track teeth 2, and the tunnel cavities 11 communicate with the outside through openings on the outer surface of the track plate 1. Each tunnel cavity 11 has a tunnel slider 51 inside, which preferably has a square structure and slides linearly with the inner wall of the tunnel cavity 11. One end of the track teeth 2 is fixedly connected to the tunnel slider 51 as an integral structure. A first spring 52 is provided on the side of the tunnel slider 51 away from the track teeth 2. The first spring 52 matches the cross-sectional shape of the tunnel cavity 11. When the tunnel slider 51 has a square structure, the first spring 52 is a corresponding square spring.

[0040] A limiting sleeve 53 is fixed on one side of the tunnel cavity 11 near the inner surface of the track plate 1. The limiting sleeve 53 is an integral structure with the inner wall of the tunnel cavity 11. The inner side of the end face of the limiting sleeve 53 near the tunnel slider 51 adopts a rounded chamfer structure. The first spring 52 is located inside the limiting sleeve 53, and one end of it extends out of the limiting sleeve 53 and always maintains contact with the tunnel slider 51. The limiting sleeve 53 limits the stroke of the tunnel slider 51.

[0041] The tunnel cavity 11 has an inwardly extending annular limiting part 12 at the opening on the outer surface of the track plate 1 to prevent the tunnel slider 51 from dislodging. Two annular sealing rings 13 are fixedly embedded on the inner wall of the annular limiting part 12. The two annular sealing rings 13 are arranged at intervals along the depth direction of the tunnel cavity 11 and are made of nylon material. The track tooth column 2 is a circular or square columnar structure. Its outer wall is slidably sealed with the track plate 1 through the annular sealing rings 13. The track tooth column 2 can effectively prevent mud and sand from entering the interior of the tunnel cavity 11 during the extension and retraction of the track plate 1.

[0042] In addition, the inner surface of the track plate 1 is provided with cover plates 14, which are equal in number and corresponding in position to the tunnel cavities 11. The cover plates 14 are bolted to the track plates 1, sealing the openings of the tunnel cavities 11 located on the inner surface of the track tooth plates 3. Each cover plate 14 is provided with a rubber sealing ring 15 between itself and the track plate 1, and one end of each first spring 52 is fixedly connected to the corresponding cover plate 14. After a period of use, the first springs 52 inside the tunnel cavities 11 can be maintained or replaced by opening the cover plates 14, and the interior of the tunnel cavities 11 can be inspected to determine whether cleaning is necessary.

[0043] Between any two adjacent track tooth columns 2 in the same group, there is a track tooth plate 3. The track tooth plate 3 is a rectangular flat plate and is arranged perpendicularly to the outer surface of the track plate 1. Specifically, the track plate 1 has slots 15 that are equal in number and correspond one-to-one with the track tooth plates 3. One side of the track tooth plate 3 is located in the corresponding slot 15 and slides and seals with the inner side wall of the slot 15.

[0044] More specifically, the length of the groove 15 is greater than the length of the toothed plate 3, the depth of the groove 15 is less than the width of the toothed plate 3, and the thickness of the toothed plate 3 is equal to the width of the groove 15. The toothed plate 3 can extend relative to the track plate 1 or be partially retracted into the air intake, and a certain width of distance is left between its left and right ends and the inner wall of the groove 15.

[0045] Each track tooth plate 3 has its left and right ends hinged to two adjacent track tooth columns 2. One side of each track tooth plate 3 is inserted into the track plate 1 and slides in a sealing fit with the track plate 1. A crescent groove 21 is provided on the side wall of the track tooth column 2, and the pin 22 is located in the crescent groove 21, with both ends fixedly connected to the track tooth column 2. Specifically, each track tooth plate 3 has two symmetrical support arms 31 on its left and right ends away from the track plate 1. One end of each support arm 31 is fixedly connected to the side end of the track tooth plate 3, and the other end is rotatably connected to the side of the adjacent track tooth column 2 through the pin 22.

[0046] The movement of the track tooth 2 can drive the track tooth plate 3 to move together. The extension length of the track tooth plate 3 and its posture relative to the track plate 1 are determined by the extension length of the track tooth 2 on both sides. Penetration resistance and shear resistance are the main factors affecting the rapid movement of tracked vehicles. This invention mainly obtains appropriate traction force by adjusting the magnitude of the penetration resistance and shear resistance of the landing vehicle. Penetration resistance refers to the resistance encountered by the track tooth when it enters the soil. It is related to factors such as soil hardness and moisture. The deeper the track tooth 2 enters the soil, the greater the penetration resistance and the greater the shear resistance, and the greater the traction force provided by the soil.

[0047] When a tank travels on soft ground such as mudflats or beaches, a low ground pressure is required to reduce the amount of sinking and the slippage rate. Lengthening the track plates would result in poor steering maneuverability. Furthermore, due to factors such as terrain changes and surface friction, the track teeth 3 will encounter different penetration resistances. In order to maintain the stability and speed of the tank, the technical solution adopted in this invention is to control the soil penetration depth of the track teeth 2 and track teeth 3 by utilizing the extension range of the spring without changing the length of the track plates, thereby maintaining the optimal soil penetration depth range to obtain appropriate traction.

[0048] First, the optimal soil penetration depth range of the toothed column 2 and toothed plate 3 when walking on the mudflats was determined through scaled-down experiments. Then, the magnitude of the penetration resistance at the optimal soil penetration depth range was measured using a penetration resistance meter. Based on the optimal soil penetration depth range of the toothed column 2 and toothed plate 3 and the magnitude of the penetration resistance, and according to Hooke's Law: the elastic force of a spring is proportional to the elongation (or compression) of the spring, i.e., F = kΔx, the magnitude of the elastic force of the spring is the magnitude of the penetration resistance at the optimal soil penetration depth range, and a spring with appropriate spring constant (K value), stiffness, elastic modulus and other parameters was designed. Based on the extension range of the spring, an appropriate tooth length was connected. A soil penetration depth of 8-20cm can meet most situations. Therefore, in this invention, the soil penetration depth of the tooth is designed to be 8-20cm.

[0049] When walking on mudflats, if the penetration resistance is greater than the experimentally measured penetration resistance, the spring will contract due to the soil resistance. If it is less than the experimentally measured penetration resistance, the spring will rebound from its contracted state, thereby increasing the penetration depth of the track teeth 2 and track plates 3 and obtaining appropriate traction. When the track teeth 2 and track plates 3 encounter hard materials such as reefs during the penetration process, the track teeth 2 will experience resistance, causing the spring to contract. Similarly, when walking on gravel ground, the track teeth 2 and track plates 3 will partially retract into the track plates 1 to obtain better ground pressure and ensure the speed and maneuverability of the track.

[0050] Two spring cavities 16 are symmetrically provided on the outer sides of each track plate 1 on the left and right sides of each slot 15. One side of each spring cavity 16 is connected to the adjacent slot 15. Two sealing components are symmetrically provided at the left and right ends of the track tooth plate 3. The sealing components are installed inside the track plate 1 and cooperate with the corresponding ends of the track tooth plate 3.

[0051] Specifically, the sealing assembly includes a sealing plate 61 and a compression spring 62. The compression spring 62 is located inside the spring cavity 16. The sealing plate 61 is laterally slidably disposed inside one end of the slot 15. One end of the sealing plate 61 extends into the spring cavity 16 and contacts and engages with the compression spring 62. The other end contacts and slides with the corresponding side of the toothed plate 3.

[0052] Two symmetrical sliding grooves 17 are formed on the two side walls of the track plate 1 in the thickness direction of the groove 15. One end of each sliding groove 17 extends into the interior of the spring cavity 16. The two sides of the sealing plate 61 are respectively located inside the two sliding grooves 17 and are laterally slidingly engaged with the track tooth plate 3. One end of the sealing plate 61 is fixedly connected to a limiting head that is slidably disposed in the spring cavity 16, and the other end is provided with a square insertion groove 611. The width of the insertion groove 611 is equal to the thickness of the track tooth plate 3, and the side of the track tooth plate 3 is located within the insertion groove 611.

[0053] During travel on surfaces of varying hardness, the extension lengths of the track pins 2 and 3 are adjusted according to the surface hardness to ensure optimal penetration depth. The extension amount and tilt angle of the track plate 3 change. Under the action of the compression spring 62, the sealing plate 61 remains in contact with the side of the track plate 3, effectively preventing mud and sand from entering the grooves 15 of the track plates when the amphibious vehicle is traveling in water or on sand. When traveling in water, the track pins 2 and 3 extend to their maximum extent, acting as a propulsion mechanism and increasing the amphibious vehicle's speed in water.

[0054] For any parts not mentioned in this invention, existing technologies can be used or referenced.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", 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 this 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 this invention.

[0057] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A track structure suitable for amphibious landing vehicles, characterized in that, It includes track plates, track tooth columns, and track tooth plates. The track plates are rectangular plate structures made of alloy steel. There are several track plates, and all track plates are connected end to end in sequence along their width direction to form track chain links. Each track plate is provided with at least one set of track teeth, and each set of track teeth includes multiple track teeth arranged at equal intervals along the length of the track plate. One end of the track teeth is movably inserted into the inside of the track plate, and the other end is located on the outside of the track plate. A track tooth plate is provided between any two adjacent track tooth columns in the same group. The track tooth plate is a rectangular flat plate and is arranged perpendicularly to the outer surface of the track plate. Each track tooth plate has its left and right ends hinged to two adjacent track tooth columns, and one side of each track tooth plate is inserted into the inside of the track plate and slides and seals with the track plate. Two sealing components are symmetrically provided at the left and right ends of the track tooth plate. The sealing components are installed inside the track plate and cooperate with the corresponding ends of the track tooth plate. The track plate has slots that are equal in number and correspond one-to-one with the track tooth plates. One side of the track tooth plate is located in the corresponding slot and slides and seals with the inner side wall of the slot. Two spring cavities are symmetrically provided on the outside of each track plate on the left and right sides of each slot, and one side of each spring cavity is connected to the adjacent slot. The sealing assembly includes a sealing plate and a compression spring. The compression spring is located inside the spring cavity. The sealing plate is laterally slidably disposed inside one end of the slot. One end of the sealing plate extends into the spring cavity and contacts and engages with the compression spring. The other end contacts and slides with the corresponding side of the toothed plate. Two symmetrical sliding grooves are provided on the two side walls of the track plate in the thickness direction of the groove. One end of the sliding groove extends into the interior of the spring cavity. The two sides of the sealing plate are respectively inside the two sliding grooves and slide laterally with the track tooth plate. One end of the sealing plate is fixedly connected to the limiting head that is slidably set in the spring cavity, and the other end is provided with a square insertion groove. The width of the insertion groove is equal to the thickness of the toothed plate, and the side of the toothed plate is located in the insertion groove. The track plate has tunnel cavities that are equal in number and correspond one-to-one with the track teeth. The tunnel cavities communicate with the outside through openings located on the outer surface of the track plate. Each tunnel cavity is equipped with a tunnel slider, which slides linearly against the inner wall of the tunnel cavity. One end of the toothed column is fixedly connected to the tunnel slider as an integral structure, and a first spring is provided on the side of the tunnel slider away from the toothed column.

2. The track structure for amphibious landing vehicles according to claim 1, characterized in that, Two track pins are provided at each of the left and right ends of the track plate. The two track pins on the same side are located on both sides of the track plate in the width direction. One end of the track pin is fixed to the end face of the track plate. Two adjacent track pins located on the same side and close to each other are connected by an end connector, and the other end of the track pin passes through the end connector and rotates with it.

3. The track structure for amphibious landing vehicles according to claim 1, characterized in that, The tunnel cavity has an inwardly extending annular limiting part at the opening on the outer surface of the track plate, which can prevent the tunnel slider from falling out. At least one annular sealing ring is fixedly embedded on the inner wall of the annular limiting part. The track tooth column is a circular or square columnar structure, and its outer wall is slidably sealed to the track plate through an annular sealing ring.

4. The track structure for amphibious landing vehicles according to claim 1, characterized in that, The inner surface of the track plate is provided with cover plates that are equal in number and correspond one-to-one with the tunnel cavities. The cover plates are bolted to the track plates to close the openings of the tunnel cavities located on the inner surface of the track tooth plates. A rubber sealing ring is provided between each of the cover plates and the track plates, and one end of each of the first springs is fixedly connected to the corresponding cover plate.

5. A track structure suitable for amphibious landing vehicles according to claim 1, characterized in that, Each track tooth plate has two symmetrical support arms on the left and right ends of the side away from the track plate. One end of each support arm is fixedly connected to the side end of the track tooth plate, and the other end is rotatably connected to the side of the adjacent track tooth column through a pin. The side wall of the toothed column is provided with a crescent groove, and the pin is located in the crescent groove, with its two ends fixedly connected to the toothed column.

6. A track structure suitable for amphibious landing vehicles according to claim 1, characterized in that, The length of the slot is greater than the length of the toothed plate, the depth of the slot is less than the width of the toothed plate, and the thickness of the toothed plate is equal to the width of the slot.

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