A track idler bracket for a sled

Abstract

The present invention discloses a crawler carrier wheel frame for a sled vehicle, belonging to the technical field of sled vehicle equipment. The crawler carrier wheel frame for the sled vehicle includes a carrier wheel frame assembly. A crawler main body is arranged on the outer side of the carrier wheel frame assembly, and an adjusting mechanism is installed at the center of the carrier wheel frame assembly; a secondary carrier wheel mechanism is installed on the outer side of the carrier wheel frame assembly, a main carrier wheel mechanism is installed at the top of the outer side of the carrier wheel frame assembly, and a driving mechanism is installed at the center of the rear end of the carrier wheel frame assembly. By designing the crawler main body and the adjusting mechanism, the present invention can adjust the circular crawler to a triangular shape, thereby increasing its contact area with the ground, enabling it to travel more stably on rough ground. When traveling on good ground, the triangular crawler can be adjusted back to a circular shape, so that the contact surface of the crawler with the ground is smaller, resulting in relatively lower friction, reducing the fuel consumption of the sled vehicle, and thus reducing the use cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of sled vehicle equipment, and particularly relates to a track idler bracket for a sled vehicle. Background Art

[0002] A sled vehicle is a vehicle designed to travel on snow or ice, usually moving on skiing or snow-covered ground by sliding or rolling. Sled vehicles generally do not use traditional tires but adopt a design similar to a sled or tracks to improve their driving ability on soft snow, deep snow or ice. However, the track idler bracket of a sled vehicle is an important part of the sled vehicle track system, which is used to support and guide the operation of the track. Its function is to ensure that the track can smoothly travel on snow or other rough ground, while maintaining the tension and stability of the track.

[0003] The existing structural design of the sled vehicle track idler bracket is usually relatively simple. The track is directly installed on the outside of the idler bracket, and multiple idlers are used to help the track maintain the correct running direction. At the same time, the idlers can reduce the deviation of the track and ensure the stable operation of the track. However, its functionality is poor. The existing tracks are usually trapezoidal and can travel on different terrains. However, when traveling on a ground with good conditions, due to the large contact friction, it causes high fuel consumption of the vehicle body and increases the use cost of the sled vehicle. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a track idler bracket for a sled vehicle.

[0005] The technical solution adopted to solve the above technical problem is: a track idler bracket for a sled vehicle, including an idler bracket assembly. A track body is arranged on the outside of the idler bracket assembly, and an adjusting mechanism is installed at the center of the idler bracket assembly;

[0006] A secondary idler mechanism is installed on the outside of the idler bracket assembly, a main idler mechanism is installed at the top of the outside of the idler bracket assembly, and a driving mechanism is installed at the center of the rear end of the idler bracket assembly;

[0007] A shock absorber is arranged at the top of the driving mechanism, and the top of the shock absorber is fixedly connected to the sled vehicle body.

[0008] Furthermore, the idler bracket assembly includes an idler bracket main body. A plurality of annularly distributed slide rails are fixedly connected to the front end of the idler bracket main body. A connecting plate is fixedly connected between the front ends of the plurality of slide rails. A plurality of annularly distributed fixing frames are fixedly connected to the front end of the connecting plate. Connecting shafts are fixedly connected between the plurality of fixing frames and the idler bracket main body.

[0009] Through the above technical solution, the main body of the idler wheel frame not only facilitates the connection of multiple auxiliary wheels, but also is used for the connection of the driving mechanism. The multiple slide rails are used for the limiting sliding of the telescopic strips, so as to facilitate the adjustment of the multiple auxiliary wheels, and the multiple connecting shafts are used for the rotation of the multiple rotating frames.

[0010] Furthermore, limiting ring strips are fixedly connected to both the front and rear ends of the inner wall of the crawler body, and two groups of internal teeth are fixedly connected to the center of the inner wall of the crawler body.

[0011] Through the above technical solution, the two limiting ring strips are close to the outer sides of the corresponding auxiliary wheels, preventing the crawler body from shifting during rotation and improving the driving stability of the sleigh.

[0012] Furthermore, the adjusting mechanism includes a first motor fixedly installed at the center of the front end of the connecting plate. A rotating disk is fixedly connected to the outer wall of the output shaft of the first motor. Multiple arc-shaped grooves are formed in the rotating disk. Multiple movable pins are slidably connected in the multiple arc-shaped grooves. The rear ends of the multiple movable pins are fixedly connected with telescopic strips, and the multiple telescopic strips are slidably connected with the corresponding slide rails.

[0013] Through the above technical solution, when it is necessary to adjust the circular crawler body to a triangular shape, the first motor is started. The rotation of the output shaft drives the rotation of the rotating disk, thereby driving the rotation of the multiple arc-shaped grooves, and then driving the multiple movable pins to slide in the corresponding arc-shaped grooves. Since the multiple telescopic strips slide with the corresponding slide rails, the multiple telescopic strips extend outwards, thereby driving the deformation of the auxiliary idler wheel mechanism and the main idler wheel mechanism. When the rotating disk rotates a certain angle, the crawler body at this time changes from a circular shape to a triangular shape, thereby increasing the contact friction between the crawler body and the ground. At the same time, the driving mechanism stops operating, and it is driven by the main idler wheel mechanism to run, and can travel on relatively rough ground, with strong functionality.

[0014] Furthermore, the auxiliary idler wheel mechanism includes two rotating frames rotatably connected to the outer walls of the multiple connecting shafts. Movable frames are rotatably connected to both ends of each two rotating frames. The outer ends of the multiple telescopic strips are fixedly connected with telescopic frames. Auxiliary wheels are installed at the front and rear ends of the multiple rotating frames, the multiple movable frames and the multiple telescopic frames.

[0015] Through the above technical solution, before adjustment, it is driven by the driving mechanism to operate. At this time, the crawler body is in a non-rotating state. Since the crawler body is sleeved on the outer sides of multiple auxiliary wheels, when the guide wheel frame body rotates, the guide wheel frame body drives multiple fixing frames and corresponding connecting shafts to rotate, thereby driving multiple rotating frames, movable frames, and telescopic frames to rotate, and further driving multiple auxiliary wheels to revolve. At this time, multiple telescopic bars are stationary, providing corresponding supporting forces, causing the crawler body to revolve, thus realizing the driving of the sled. When the crawler body needs to be adjusted, multiple telescopic bars extend outwards, driving the connected telescopic frames to extend outwards. At the same time, multiple movable frames rotate, thereby driving the positions of the connected auxiliary wheels to shift. When multiple telescopic bars extend to the specified position, the crawler body is adjusted from a circular shape to a triangular shape, thereby increasing the contact area with the ground and being more stable when driving on rough ground.

[0016] Furthermore, multiple said movable frames are rotatably connected to corresponding telescopic frames, and the outer sides of multiple said auxiliary wheels are in contact with the inner wall of the crawler body.

[0017] Through the above technical solution, when the crawler body is circular or triangular, the crawler body tightly sleeves on the outer sides of multiple auxiliary wheels. When the crawler body is circular, the crawler body is not driven. When the crawler body is triangular, the crawler body is driven by the main guide wheel mechanism.

[0018] Furthermore, the main guide wheel mechanism includes two main shafts rotatably connected to one end of one of the telescopic frames. The outer ends of both main shafts are fixedly connected with main wheels. Driving gears are fixedly connected to the outer walls of both main shafts near the positions of the corresponding main wheels. First bevel gears are fixedly connected to the inner ends of both main shafts. A second motor is installed at the center of one of the telescopic frames, and a second bevel gear is fixedly connected to the outer wall of the output shaft of the second motor.

[0019] Through the above technical solution, when the crawler body is adjusted to a triangular shape, the second motor is started. The second motor drives the second bevel gear to rotate through the rotation of the output shaft, causing the second bevel gear to drive two first bevel gears to rotate, so that the two first bevel gears respectively drive the corresponding main shafts to rotate, thereby driving the connected main wheels and driving gears to rotate, and further driving two internal gears to rotate, realizing the rotation of the crawler body (at this time, multiple auxiliary wheels do not revolve), enabling the sled to drive on rough ground.

[0020] Furthermore, the second bevel gear meshes with two first bevel gears. In the combined state, the two driving gears mesh with the corresponding internal gears.

[0021] Through the above technical solution, after the adjustment mechanism is adjusted, the circular crawler body is changed into a triangle. At this time, the two groups of internal teeth are respectively engaged with the corresponding driving gears, so that when the driving gears rotate, the engaged internal teeth are driven to rotate, thereby driving the crawler body to rotate and realizing the driving of the entire sled vehicle.

[0022] Further, the driving mechanism includes a gear ring fixedly connected to the center of the rear end of the guide wheel frame body. The rear end of the gear ring is rotatably connected to a fixed shell. The top of the rear end of the fixed shell is fixedly connected with a connecting seat. A third motor is provided at the rear end of the fixed shell. The front end of the output shaft of the third motor is fixedly connected with a driving shaft. The front end of the driving shaft is fixedly connected with an elastic coupling. The front end of the elastic coupling is fixedly connected with a first rotating shaft. A second rotating shaft and a third rotating shaft are respectively provided on both sides of the first rotating shaft. A plurality of fourth rotating shafts are provided on the outer sides of the second rotating shaft and the third rotating shaft. The outer walls of the first rotating shaft, the second rotating shaft, the third rotating shaft and the plurality of fourth rotating shafts are all fixedly connected with movable gears. A first connecting frame is installed between the first rotating shaft and the second rotating shaft. A second connecting frame is installed between the first rotating shaft and the third rotating shaft. A third connecting frame and a fourth connecting frame are respectively installed between the plurality of fourth rotating shafts. Two fifth rotating shafts are rotatably connected to the outer side of the front end of the fixed shell. The outer walls of the two fifth rotating shafts are both fixedly connected with limiting gears.

[0023] Through the above technical solution, when the crawler body is circular, the third motor is started. The driving shaft is driven to rotate through the rotation of the output shaft, thereby driving the elastic coupling and the first rotating shaft to rotate, so that the first rotating shaft drives the connected movable gears to rotate, thereby driving the connected plurality of movable gears to rotate with each other. When the outermost movable gear rotates, it drives the gear ring to rotate, so that the gear ring drives the guide wheel frame body to rotate, thereby driving the crawler body to rotate (at this time, the plurality of auxiliary wheels revolve), so that the sled vehicle can travel on the ground with good environment. At this time, the contact surface between the crawler body and the ground is relatively small, resulting in relatively low friction, so the fuel consumption of the sled vehicle is greatly reduced, thereby reducing the use cost.

[0024] Further, the bottom end of the shock absorber is fixedly connected with the connecting seat. The third motor is installed on the sled vehicle body. The plurality of movable gears are all engaged with each other. The first connecting frame and the second connecting frame are both rotatably connected to the first rotating shaft. The first connecting frame is rotatably connected to the second connecting frame. The first connecting frame is rotatably connected to the third connecting frame. The second connecting frame is rotatably connected to the fourth connecting frame. Two of the fourth rotating shafts are rotatably connected to the front end of the fixed shell.

[0025] Through the above technical solution, when the crawler body is circular and the crawler body travels on uneven ground, at this time, the crawler body is buffered by the fixed shell under the action of the shock absorber. At the same time, the first connecting frame, the second connecting frame, the third connecting frame and the fourth connecting frame rotate relative to each other, and a plurality of movable gears inside them mesh and rotate with each other, facilitating the buffered movement of the entire idler bracket. The traditional differential, gearbox and other components are omitted, reducing the complexity of vehicle manufacturing, thereby reducing the failure rate and maintenance cost. Moreover, each crawler body is independently operated by the third motor, and the power distribution is more flexible, greatly improving the driving stability of the sled vehicle.

[0026] The beneficial effects of the present invention are as follows: (1) By designing the crawler body and the adjusting mechanism, the circular crawler can be adjusted to a triangular shape, thereby increasing its contact area with the ground, enabling it to travel more stably on harsh ground. When traveling on good ground, the triangular crawler can be adjusted back to a circular shape, resulting in a relatively small contact area between the crawler and the ground, relatively low friction, reduced fuel consumption of the sled vehicle, and thus reduced usage cost; (2) By designing the auxiliary idler mechanism, the main idler mechanism and the driving mechanism, when the crawler is circular, the driving mechanism drives and the main idler mechanism stops, causing multiple auxiliary wheels to drive the crawler to rotate during revolution, traveling on good ground and reducing fuel consumption. When the crawler is triangular, the main idler mechanism drives and the driving mechanism stops, traveling on harsh ground, with strong functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall external view of the first perspective of the present invention;

[0028] Figure 2 is the overall external view of the second perspective of the present invention;

[0029] Figure 3 is the overall front view of the present invention;

[0030] Figure 4 is the schematic structural diagram of the idler bracket assembly of the present invention;

[0031] Figure 5 is the schematic structural diagram of the crawler body of the present invention;

[0032] Figure 6 is the schematic structural diagram of the auxiliary idler mechanism of the present invention;

[0033] Figure 7 is the schematic structural diagram of the adjusting mechanism of the present invention;

[0034] Figure 8 is the schematic structural diagram of the driving mechanism of the present invention;

[0035] Figure 9 is the schematic structural diagram of some parts of the driving mechanism of the present invention;

[0036] Figure 10 is Figure 6 The partial enlarged view at position A in

[0037] Figure 11 It is the structural schematic diagram of the crawler body of the present invention after adjustment.

[0038] Reference numerals: 1, idler wheel frame assembly; 101, idler wheel frame body; 102, slide rail; 103, connecting plate; 104, fixing frame; 105, connecting shaft; 2, crawler body; 21, limiting ring strip; 22, internal teeth; 3, adjusting mechanism; 301, first motor; 302, rotating disk; 303, arc-shaped groove; 304, movable pin; 305, telescopic strip; 4, auxiliary idler wheel mechanism; 401, rotating frame; 402, movable frame; 403, telescopic frame; 404, auxiliary wheel; 5, main idler wheel mechanism; 501, main shaft; 502, main wheel; 503, driving gear; 504, first bevel gear; 505, second motor; 506, second bevel gear; 6, driving mechanism; 601, gear ring; 602, fixed shell; 603, connecting seat; 604, third motor; 605, driving shaft; 606, elastic coupling; 607, first rotating shaft; 608, second rotating shaft; 609, third rotating shaft; 610, fourth rotating shaft; 611, movable gear; 612, first connecting frame; 613, second connecting frame; 614, third connecting frame; 615, fourth connecting frame; 616, fifth rotating shaft; 617, limiting gear; 7, shock absorber. Detailed implementation manners

[0039] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] Such as Figures 1-7As shown in the figure, a track idler bracket of this embodiment includes an idler bracket assembly 1. The idler bracket assembly 1 includes an idler bracket main body 101. A plurality of annularly distributed slide rails 102 are fixedly connected to the front end of the idler bracket main body 101. A connecting plate 103 is fixedly connected between the front ends of the plurality of slide rails 102. A plurality of annularly distributed fixing brackets 104 are fixedly connected to the front end of the connecting plate 103. Connecting shafts 105 are fixedly connected between the plurality of fixing brackets 104 and the idler bracket main body 101. The idler bracket main body 101 not only facilitates the connection of a plurality of auxiliary wheels 404, but also is used for the connection of the driving mechanism 6. The plurality of slide rails 102 are used for the limiting sliding of the telescopic strips 305, so as to facilitate the adjustment of the plurality of auxiliary wheels 404. The plurality of connecting shafts 105 are used for the rotation of a plurality of rotating brackets 401. A track main body 2 is arranged outside the idler bracket assembly 1. Limiting ring strips 21 are fixedly connected to both the front and rear ends of the inner wall of the track main body 2. Two groups of internal teeth 22 are fixedly connected to the center of the inner wall of the track main body 2. The two limiting ring strips 21 are close to the outside of the corresponding auxiliary wheels 404, preventing the track main body 2 from shifting during rotation and improving the driving stability of the sled. A shock absorber 7 is arranged at the top of the driving mechanism 6, and the top of the shock absorber 7 is fixedly connected to the sled body.

[0041] As Figures 1-11 shown in the figure, an adjusting mechanism 3 is installed in the center of the idler bracket assembly 1. The adjusting mechanism 3 includes a first motor 301 fixedly installed at the center of the front end of the connecting plate 103. A rotating disk 302 is fixedly connected to the outer wall of the output shaft of the first motor 301. A plurality of arc-shaped grooves 303 are formed in the rotating disk 302. Movable pins 304 are slidably connected in the plurality of arc-shaped grooves 303. The rear ends of the plurality of movable pins 304 are fixedly connected with telescopic strips 305. The plurality of telescopic strips 305 are slidably connected with the corresponding slide rails 102. When it is necessary to adjust the circular track main body 2 to a triangular shape, the first motor 301 is started. The rotating disk 302 is driven to rotate by the rotation of the output shaft, thereby driving the plurality of arc-shaped grooves 303 to rotate, and then driving the plurality of movable pins 304 to slide in the corresponding arc-shaped grooves 303. Since the plurality of telescopic strips 305 slide with the corresponding slide rails 102, the plurality of telescopic strips 305 extend outwards, thereby driving the auxiliary idler mechanism 4 and the main idler mechanism 5 to deform. When the rotating disk 302 rotates a certain angle, the track main body 2 changes from a circular shape to a triangular shape at this time, thereby increasing the contact friction between the track main body 2 and the ground. At the same time, the driving mechanism 6 stops operating, and the sled can be driven to run through the main idler mechanism 5, and can travel on relatively rough ground, with strong functionality.

[0042] As Figures 1-7As shown in the figure, a secondary guide wheel mechanism 4 is installed on the outer side of the guide wheel frame assembly 1. The secondary guide wheel mechanism 4 includes two rotating frames 401 rotatably connected to the outer walls of a plurality of connecting shafts 105. At both ends of each two rotating frames 401, movable frames 402 are rotatably connected. The outer ends of a plurality of telescopic bars 305 are fixedly connected with telescopic frames 403. Secondary wheels 404 are installed at the front and rear ends of the plurality of rotating frames 401, the plurality of movable frames 402, and the plurality of telescopic frames 403. Before adjustment, it is driven by the driving mechanism 6 to operate. At this time, the crawler body 2 is in a non-rotating state. Since the crawler body 2 is sleeved on the outer sides of the plurality of secondary wheels 404, when the guide wheel frame main body 101 rotates, the guide wheel frame main body 101 drives the plurality of fixed frames 104 and the corresponding connecting shafts 105 to rotate, thereby driving the plurality of rotating frames 401, movable frames 402, and telescopic frames 403 to rotate, and further driving the plurality of secondary wheels 404 to revolve. At this time, the plurality of telescopic bars 305 are immovable, providing corresponding supporting forces, causing the crawler body 2 to revolve, thus realizing the driving of the sled vehicle. When the crawler body 2 needs to be adjusted, the plurality of telescopic bars 305 extend outwards, driving the connected telescopic frames 403 to extend outwards. At the same time, the plurality of movable frames 402 rotate, thereby driving the positions of the connected secondary wheels 404 to shift. When the plurality of telescopic bars 305 extend to the specified position, the crawler body 2 is adjusted from a circular shape to a triangular shape, thereby increasing the contact area with the ground and being more stable when driving on rough ground. The plurality of movable frames 402 are rotatably connected to the corresponding telescopic frames 403. The outer sides of the plurality of secondary wheels 404 are in contact with the inner wall of the crawler body 2. When the crawler body 2 is circular or triangular, the crawler body 2 is tightly sleeved on the outer sides of the plurality of secondary wheels 404. When the crawler body 2 is circular, the crawler body 2 is not driven. When the crawler body 2 is triangular, the crawler body 2 is driven by the main guide wheel mechanism 5.

[0043] As Figures 1-10As shown, a main guide wheel mechanism 5 is installed on the outer top of the guide wheel frame assembly 1, and the main guide wheel mechanism 5 includes two main shafts 501 rotatably connected to one end of one of the telescopic frames 403, the outer ends of the two main shafts 501 are fixedly connected to the main wheels 502, the outer walls of the two main shafts 501 are fixedly connected to the corresponding main wheels 502, and the inner ends of the two main shafts 501 are fixedly connected to the first bevel gear 504, and the second motor 505 is installed at the center of one of the telescopic frames 403, and the outer wall of the output shaft of the second motor 505 is fixedly connected to the second bevel gear 506. When the crawler body 2 is adjusted to a triangle, the second motor 505 is started, and the second motor 505 drives the second bevel gear 506 to rotate through the rotation of the output shaft, so that the second bevel gear 506 drives the two first The bevel teeth 504 rotate, so that the two first bevel teeth 504 respectively drive the corresponding main shaft 501 to rotate, thereby driving the connected main wheel 502 and the driving gear 503 to rotate, thereby driving the two internal teeth 22 to rotate, realizing the rotation of the track body 2 (the multiple secondary wheels 404 do not revolve at this time), so that the sled can travel on harsh ground, and the second bevel teeth 506 are meshed with the two first bevel teeth 504. In the combined state, the two driving gears 503 are meshed with the corresponding internal teeth 22. When the adjustment mechanism 3 is adjusted, the circular track body 2 is changed into a triangle. At this time, the two groups of internal teeth 22 are respectively meshed with the corresponding driving gears 503, so that when the driving gear 503 rotates, the meshing internal teeth 22 are driven to rotate, thereby driving the track body 2 to rotate, and realizing the travel of the entire sled.

[0044] like Figures 1-9As shown, a driving mechanism 6 is installed at the center of the rear end of the idler wheel frame assembly 1. The driving mechanism 6 includes a gear ring 601 fixedly connected to the center of the rear end of the idler wheel frame body 101. The rear end of the gear ring 601 is rotatably connected to a fixed housing 602. A connecting seat 603 is fixedly connected to the top of the rear end of the fixed housing 602. A third motor 604 is provided at the rear end of the fixed housing 602. The front end of the output shaft of the third motor 604 is fixedly connected to a driving shaft 605. The front end of the driving shaft 605 is fixedly connected to an elastic coupling 606. The front end of the elastic coupling 606 is fixedly connected to a first rotating shaft 607. A second rotating shaft 608 and a third rotating shaft 609 are respectively provided on both sides of the first rotating shaft 607. A plurality of fourth rotating shafts 610 are provided on the outer sides of the second rotating shaft 608 and the third rotating shaft 609. Moving gears 611 are fixedly connected to the outer walls of the first rotating shaft 607, the second rotating shaft 608, the third rotating shaft 609, and the plurality of fourth rotating shafts 610. A first connecting frame 612 is installed between the first rotating shaft 607 and the second rotating shaft 608. A second connecting frame 613 is installed between the first rotating shaft 607 and the third rotating shaft 609. A third connecting frame 614 and a fourth connecting frame 615 are respectively installed between the plurality of fourth rotating shafts 610. Two fifth rotating shafts 616 are rotatably connected to the outer side of the front end of the fixed housing 602. Limiting gears 617 are fixedly connected to the outer walls of the two fifth rotating shafts 616. When the crawler body 2 is circular, start the third motor 604. The driving shaft 605 is driven to rotate by the rotation of the output shaft, thereby driving the elastic coupling 606 and the first rotating shaft 607 to rotate, so that the first rotating shaft 607 drives the connected moving gears 611 to rotate, thereby driving the plurality of connected moving gears 611 to rotate relative to each other. When the outermost moving gear 611 rotates, it drives the gear ring 601 to rotate, so that the gear ring 601 drives the idler wheel frame body 101 to rotate, thereby driving the crawler body 2 to rotate (at this time, the plurality of auxiliary wheels 404 revolve), enabling the sled vehicle to travel on the ground with good conditions. At this time, the contact surface between the crawler body 2 and the ground is relatively small, resulting in relatively low friction. Therefore, the fuel consumption of the sled vehicle is greatly reduced, thereby reducing the use cost. The bottom end of the shock absorber 7 is fixedly connected to the connecting seat 603. The third motor 604 is installed on the sled vehicle body. The plurality of moving gears 611 are all meshed with each other. The first connecting frame 612 and the second connecting frame 613 are both rotatably connected to the first rotating shaft 607. The first connecting frame 612 is rotatably connected to the second connecting frame 613. The first connecting frame 612 is rotatably connected to the third connecting frame 614. The second connecting frame 613 is rotatably connected to the fourth connecting frame 615. Two of the fourth rotating shafts 610 are rotatably connected to the front end of the fixed housing 602. When the crawler body 2 is circular and the crawler body 2 travels on the uneven ground, at this time, the crawler body 2 is buffered by the fixed housing 602 under the action of the shock absorber 7. At the same time, the first connecting frame 612, the second connecting frame 613, the third connecting frame 614, and the fourth connecting frame 615 rotate relative to each other, and the plurality of moving gears 611 inside them mesh and rotate relative to each other, facilitating the buffered movement of the entire idler wheel frame.The traditional differential, gearbox and other components are omitted, reducing the complexity of vehicle manufacturing, thereby reducing the failure rate and maintenance cost. Moreover, each crawler body 2 is operated independently by the third motor 604, and the power distribution is more flexible, greatly improving the driving stability of the sled vehicle.

[0045] The working principle of this embodiment is as follows. When the sled vehicle travels on the ground with good conditions, the crawler body 2 is circular and does not need to be adjusted. At this time, the third motor 604 is started, and the output shaft rotates to drive the drive shaft 605 to rotate, thereby driving the elastic coupling 606 and the first rotating shaft 607 to rotate, so that the first rotating shaft 607 drives the connected movable gear 611 to rotate, thereby driving the connected multiple movable gears 611 to rotate with each other. When the outermost movable gear 611 rotates, it drives the gear ring 601 to rotate, so that the gear ring 601 drives the guide wheel frame body 101 to rotate, so that the guide wheel frame body 101 drives the multiple fixing frames 104 and the corresponding connecting shafts 105 to rotate, thereby driving the multiple rotating frames 401, movable frames 402 and telescopic frames 403 to rotate, and further driving the multiple auxiliary wheels 404 to revolve. At this time, the multiple telescopic strips 305 are stationary, providing the corresponding supporting force, so that the crawler body 2 revolves, thereby driving the crawler body 2 to rotate (at this time, the multiple auxiliary wheels 404 revolve);

[0046] When the sled vehicle travels on the ground with harsh conditions, the crawler body 2 needs to be adjusted to a triangle. The first motor 301 is started, and the output shaft rotates to drive the rotating disc 302 to rotate, thereby driving the multiple arc-shaped grooves 303 to rotate, thereby driving the multiple movable pins 304 to slide in the corresponding arc-shaped grooves 303. Since the multiple telescopic strips 305 slide with the corresponding slide rails 102, the multiple telescopic strips 305 extend outwards, driving the connected telescopic frames 403 to extend outwards. At the same time, the multiple movable frames 402 rotate, thereby driving the positions of the connected auxiliary wheels 404 to shift. When the multiple telescopic strips 305 extend to the specified position, the crawler body 2 is adjusted from a circle to a triangle, thereby driving the deformation of the auxiliary guide wheel mechanism 4 and the main guide wheel mechanism 5. At this time, the second motor 505 is started. The second motor 505 drives the second bevel gear 506 to rotate through the output shaft, so that the second bevel gear 506 drives the two first bevel gears 504 to rotate, so that the two first bevel gears 504 respectively drive the corresponding main shafts 501 to rotate, thereby driving the connected main wheels 502 and drive gears 503 to rotate, thereby driving the two internal teeth 22 to rotate, realizing the rotation of the crawler body 2 (at this time, the multiple auxiliary wheels 404 do not revolve), so that the sled vehicle can travel on the harsh ground.

[0047] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A snowmobile track guide wheel frame, comprising a guide wheel frame assembly (1), the guide wheel frame assembly (1) comprising a guide wheel frame body (101), a front end of the guide wheel frame body (101) being fixedly connected to a plurality of annularly distributed slide rails (102), a connecting plate (103) being fixedly connected between the front ends of the plurality of slide rails (102), a front end of the connecting plate (103) being fixedly connected to a plurality of annularly distributed fixing frames (104), a connecting shaft (105) being fixedly connected between the plurality of fixing frames (104) and the guide wheel frame body (101), characterized in that: A crawler body (2) is provided on the outer side of the guide wheel frame assembly (1); an adjustment mechanism (3) is installed at the center of the guide wheel frame assembly (1); the adjustment mechanism (3) comprises a first motor (301) fixedly installed at the front end center of the connecting plate (103); a rotating disk (302) is fixedly connected to the outer wall of the output shaft of the first motor (301); a plurality of arc grooves (303) are provided on the rotating disk (302); a plurality of movable pins (304) are slidably connected in the plurality of arc grooves (303); a plurality of telescopic bars (305) are fixedly connected to the rear ends of the plurality of movable pins (304); and the plurality of telescopic bars (305) are slidably connected to the corresponding slide rails (102); A secondary guide wheel mechanism (4) is installed on the outer side of the guide wheel frame assembly (1), a main guide wheel mechanism (5) is installed on the outer top of the guide wheel frame assembly (1), and a driving mechanism (6) is installed at the rear end center of the guide wheel frame assembly (1), the driving mechanism (6) comprising a gear ring (601) fixedly connected to the rear end center of the guide wheel frame body (101), the rear end of the gear ring (601) is rotatably connected to a fixed shell (602), the rear end top of the fixed shell (602) is fixedly connected to a connecting seat (603), the rear end of the fixed shell (602) is provided with a third motor (604), the front end of the output shaft of the third motor (604) is fixedly connected to a drive shaft (605), the front end of the drive shaft (605) is fixedly connected to an elastic coupling (606), the front end of the elastic coupling (606) is fixedly connected to a first rotating shaft (607), and the two sides of the first rotating shaft (607) are respectively provided with A second rotating shaft (608) and a third rotating shaft (609) are provided, and a plurality of fourth rotating shafts (610) are provided on the outer sides of the second rotating shaft (608) and the third rotating shaft (609); the outer walls of the first rotating shaft (607), the second rotating shaft (608), the third rotating shaft (609) and the plurality of fourth rotating shafts (610) are fixedly connected with movable gears (611); a first connecting frame (612) is installed between the first rotating shaft (607) and the second rotating shaft (608); a second connecting frame (613) is installed between the first rotating shaft (607) and the third rotating shaft (609); a third connecting frame (614) and a fourth connecting frame (615) are respectively installed between the plurality of fourth rotating shafts (610); two fifth rotating shafts (616) are rotatably connected to the outer side of the front end of the fixed shell (602); and the outer walls of the two fifth rotating shafts (616) are fixedly connected with limit gears (617); A shock absorber (7) is provided at the top end of the driving mechanism (6), and the top end of the shock absorber (7) is fixedly connected to the sled body.

2. The snowmobile track guide wheel frame according to claim 1, characterized in that: The front and rear ends of the inner wall of the crawler body (2) are fixedly connected to a limiting ring strip (21), and the center of the inner wall of the crawler body (2) is fixedly connected to two groups of inner teeth (22).

3. A snowmobile track guide wheel frame according to claim 2, characterized in that: The auxiliary guide wheel mechanism (4) comprises two rotating frames (401) rotatably connected to the outer walls of the plurality of connecting shafts (105), both ends of each of the two rotating frames (401) are rotatably connected to a movable frame (402), the outer ends of the plurality of telescopic bars (305) are fixedly connected to a telescopic frame (403), and auxiliary wheels (404) are installed at the front and rear ends of the plurality of rotating frames (401), the plurality of movable frames (402), and the plurality of telescopic frames (403).

4. A snowmobile track guide wheel frame according to claim 3, characterized in that: The plurality of movable frames (402) are rotatably connected to corresponding telescopic frames (403), and the outer sides of the plurality of auxiliary wheels (404) are in contact with the inner wall of the crawler body (2).

5. The snowmobile track guide wheel frame according to claim 3, characterized in that: The main driving wheel mechanism (5) comprises two main shafts (501) rotatably connected to one end of one of the telescopic frames (403); the outer ends of the two main shafts (501) are fixedly connected to main wheels (502); the outer walls of the two main shafts (501) are fixedly connected to driving gears (503) at positions close to the corresponding main wheels (502); the inner ends of the two main shafts (501) are fixedly connected to first bevel gears (504); a second motor (505) is installed at the center of one of the telescopic frames (403); and the outer wall of the output shaft of the second motor (505) is fixedly connected to second bevel gears (506).

6. The snowmobile track guide wheel frame according to claim 5, characterized in that: The second bevel gear (506) meshes with the two first bevel gears (504); in the assembled state, the two drive gears (503) mesh with the corresponding internal gears (22).

7. The snowmobile track guide wheel frame according to claim 1, characterized in that: The bottom end of the shock absorber (7) is fixedly connected to the connecting seat (603), the third motor (604) is mounted on the sled body, the plurality of movable gears (611) are meshed with each other, the first connecting frame (612) and the second connecting frame (613) are both rotationally connected to the first rotating shaft (607), the first connecting frame (612) and the second connecting frame (613) are rotationally connected, the first connecting frame (612) and the third connecting frame (614) are rotationally connected, the second connecting frame (613) and the fourth connecting frame (615) are rotationally connected, and the two fourth rotating shafts (610) are rotationally connected to the front end of the fixed shell (602).

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