Crawler tooth type load vehicle
By adopting a shoe tooth-type design on the load vehicle, changing the inclination angle of the shoe tooth to contact the stairs, the problem that the load vehicle in the prior art cannot fully contact the stairs is solved, the load capacity and stability are improved, and wear and maintenance costs are reduced.
Patent Information
- Application Number
- CN202510326203.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-06-10
AI Technical Summary
Existing tracked load vehicles cannot make sufficient contact with the stair surface, resulting in low load capacity and wear between the track and the stairs, increasing maintenance costs.
The shoe-tooth load vehicle is adopted. Through the cooperation between the first traveling mechanism and the second traveling mechanism, the inclination angle of the shoe-tooth is changed, so that the buffer pad of the shoe-tooth can be fully in contact with the top surface of the stairs, and the friction and stability are increased.
Improves load capacity and driving stability, reduces wear of tracks and stairs, reduces maintenance costs, and improves application flexibility in complex ground environments.
Smart Images
Figure CN120117060A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of load vehicles, and in particular to a grouser-type load vehicle. Background Art
[0002] In many fields such as logistics and transportation, emergency rescue, and construction, load-carrying vehicles often need to cross various complex terrains, including stairs, which are special and common obstacles. As a vertical or nearly vertical structure, the special geometric shape and height changes of stairs place extremely high demands on the driving stability of load-carrying vehicles. The tracks on existing crawler stair climbers cannot fully contact the stairs. This insufficient contact reduces the friction between the tracks and the stairs, affecting the stability and safety of the stair climber during the climbing process, resulting in low load-carrying capacity, and also causing wear on the tracks and stairs, increasing maintenance costs. Summary of the invention
[0003] In view of the problem that the existing crawler-type load vehicle cannot fully contact the stair surface, resulting in low load capacity and causing wear between the crawler and the stairs, the present invention provides a grouser-type load vehicle.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] A grouser-type load vehicle comprises a frame and a traveling device arranged on the frame, the traveling device comprises a motor, a first traveling mechanism, a second traveling mechanism and a plurality of grousers, the motor is fixed on the frame and is transmission-connected with the first traveling mechanism; the first traveling mechanism comprises a track plate, each of which is provided with a first slide groove, and the first traveling mechanism drives one end of each of the grousers to move along the first slide groove through a chain; the second traveling mechanism comprises a support plate, each of which is provided with a second slide groove, and the other end of each of the grousers is adapted to move along the second slide groove; the second traveling mechanism is located in the first traveling mechanism and is connected to the first traveling mechanism through a plurality of first telescopic rods, and the second traveling mechanism moves up and down relative to the first traveling mechanism under the action of each of the first telescopic rods, thereby changing the inclination angle of each of the grousers relative to the first traveling mechanism.
[0006] Furthermore, the traveling device is symmetrically arranged on the left and right sides of the frame, the first traveling mechanism has gears, the track plates are arranged on the left and right sides of the second traveling mechanism, the gears are rotatably connected to the front and rear ends of each track plate, the gears on the same side are connected by the chain, and the motor drives the gears to rotate through the transmission shaft.
[0007] Further, the support plate includes a first support plate and a second support plate. There is a spacing between the first support plate and the second support plate that is adapted to the tread teeth. The second chute is provided at the edges of the first support plate and the second support plate adjacent to the side of the tread teeth.
[0008] Further, through holes adapted to the transmission shaft are provided on the first support plate and the second support plate, and the diameter of the through holes is larger than the diameter of the transmission shaft.
[0009] Further, each of the first telescopic rods is provided on the outer side wall of the tread plate. A pressing rod is provided at the end of each of the first telescopic rods. The pressing rod is connected to the second traveling mechanism. A number of first moving grooves are provided on each of the tread plates along the vertical direction and adapted to the pressing rod.
[0010] Further, the two first telescopic rods on the opposite sides are connected by a pressing rod. A number of second moving grooves are provided on the first support plate and the second support plate along the horizontal direction and adapted to the pressing rod.
[0011] Further, a limiting rod is fixedly connected between the two tread plates. Limiting grooves are correspondingly provided on both the first support plate and the second support plate along the vertical direction and adapted to the limiting rod.
[0012] Further, the tread teeth are all approximately triangular. A buffer pad is fixed on one side. First connecting shafts are provided on the left and right sides of the tread teeth adjacent to one end of the buffer pad, and second connecting shafts are provided on the left and right sides of the tread teeth far from the buffer pad.
[0013] Further, the end of the first connecting shaft is rotatably connected to the chain, and a pulley adapted to the first chute is provided on the first connecting shaft. The first connecting shaft moves along the first chute through the pulley; the second connecting shaft is adaptably arranged in the second chute and moves along the second chute.
[0014] Further, a lifting mechanism is provided on the vehicle frame. The lifting mechanism includes a second telescopic rod, a protective shell, a slider and a roller. The second telescopic rod and the protective shell are fixedly connected to the vehicle frame. The lower side of the protective shell is open, and the upper side has a connection hole adapted to the second telescopic rod. The slider is adaptably arranged in the protective shell. The top of the slider is connected to the end of the second telescopic rod, and the bottom is connected to the roller. The slider moves up and down along the protective shell driven by the second telescopic rod, so that the roller realizes the position conversion of protruding or retracting relative to the protective shell.
[0015] The beneficial effects of the present invention are as follows: By cooperating the first traveling mechanism with the second traveling mechanism, the position of the second chute is changed, thereby changing the inclination angle of the tread teeth, enabling the buffer pads of the tread teeth to fully contact the top surface of the stairs, increasing the friction and stability with the stairs, and improving the load capacity. In the present invention, the tread teeth can be switched at different angles, enabling the use of complex ground environments, and the staff can make the movement more flexible by using the lifting mechanism, greatly expanding the application scope. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The structural principle schematic diagram of an embodiment of the present invention is shown.
[0017] Figure 2 Shown as Figure 1 a side view of
[0018] Figure 3 Shown as Figure 1 a top view of
[0019] Figure 4 Shown as Figure 3 a sectional view at position A in
[0020] Figure 5 Shown as Figure 4 a side view of
[0021] Figure 6 The structural schematic diagram of the first tread plate is shown.
[0022] Figure 7 The structural schematic diagram of the first support plate is shown.
[0023] Figure 8 The structural schematic diagram of the tread teeth is shown. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] The present invention discloses a tread-tooth type load vehicle, and the following specifically describes an embodiment of the present invention with reference to the accompanying drawings.
[0025] Combined with Figure 1 and Figure 2 shown, the tread-tooth type load vehicle includes a vehicle frame, a traveling device, and a lifting mechanism. The traveling devices are symmetrically arranged on the left and right sides of the vehicle frame. The traveling device includes a motor 6, a first traveling mechanism, a second traveling mechanism, and a plurality of tread teeth 5. The motor 6 is fixedly connected to the vehicle frame. The first traveling mechanism includes a first tread plate 101, a second tread plate 102, and a gear 2. There is a distance between the first tread plate 101 and the second tread plate 102. The first tread plate 101 is adjacent to the vehicle frame, and the first tread plate 101, the second tread plate 102 are fixedly connected to the vehicle frame. As Figure 6As shown in the figure, first tread plates 101 and second tread plates 102 are provided with first sliding grooves 20 on their edges. The second traveling mechanism is located between the first tread plates 101 and the second tread plates 102, and there are gaps between the second traveling mechanism and the first tread plates 101 and the second tread plates 102. The second traveling mechanism includes a first support plate 13 and a second support plate 14, and the first support plate 13 and the second support plate 14 are fixedly connected with a distance therebetween. As Figure 7 shown in the figure, each tread tooth 5 is located between the first support plate 13 and the second support plate 14, wherein the first support plate 13 is located on the left side of the tread tooth 5, and the second support plate 14 is located on the right side of the tread tooth 5. A second sliding groove 21 is provided at the edge of the first support plate 13 adjacent to the tread tooth 5, and a second sliding groove 21 is also provided at the edge of the second support plate 14 adjacent to the tread tooth 5. The second sliding groove 21 on the first support plate 13 corresponds to the second sliding groove 21 on the second support plate 14.
[0026] Combined Figure 3 with Figure 4 shown in the figure, the first traveling mechanism is connected to the second traveling mechanism through a plurality of first telescopic rods 4. The plurality of first telescopic rods 4 are arranged on the outer side walls of the first tread plates 101 and the second tread plates 102, and a pressing rod 17 is provided at the lower end of the first telescopic rod 4. A plurality of first moving grooves 19 are provided on the first tread plates 101 and the second tread plates 102 along the vertical direction and can be adapted to the pressing rod 17. A plurality of second moving grooves 15 are provided on the first support plate 13 and the second support plate 14 along the horizontal direction and are adapted to the pressing rod 17. A pressing rod 17 is connected between the end of the first telescopic rod 4 on the first tread plate 101 and the end of the first telescopic rod 4 at the corresponding position on the second tread plate 102. The pressing rod 17 penetrates through the first moving groove 19 and the second moving groove 15. A limiting rod 18 is fixedly connected between the first tread plate 101 and the second tread plate 102. Corresponding limiting grooves 16 are provided on the first support plate 13 and the second support plate 14 along the vertical direction and are adapted to the limiting rod 18. The limiting rod 18 penetrates through the limiting grooves 16, and the second traveling mechanism moves up and down relative to the first traveling mechanism through the cooperation of the limiting grooves 16 and the limiting rod 18.
[0027] As Figure 5 shown in the figure, the front and rear ends of the first tread plates 101 and the second tread plates 102 are both rotatably connected to the gears 2. Through holes 22 are provided at the front and rear ends of the first support plate 13 and the second support plate 14. The motor 6 is in transmission connection with the gears 2 by passing a transmission shaft 7 through the first tread plates 101, the second tread plates 102, the first support plate 13 and the second support plate 14. The through holes 22 are adapted to the transmission shaft 7, and the diameter of the through holes 22 is much larger than the diameter of the transmission shaft 7. Chains 3 are connected between the two gears 2 on the first tread plate 101 and between the two gears 2 on the second tread plate 102. The motor 6 drives the chains 3 to move through the transmission shaft 7 and the gears 2.
[0028] As Figure 8 shown, each tread tooth 5 is evenly surrounded between the edges of the first tread plate 101 and the second tread plate 102. The tread tooth 5 is approximately triangular, and a buffer pad 501 is fixed on one side, and the buffer pad 501 protrudes from the edges of the first tread plate 101 and the second tread plate 102. On the left and right sides of the tread tooth 5 adjacent to one end of the buffer pad 501, a first connecting shaft 502 is provided, and on the left and right sides of the tread tooth 5 far from the buffer pad 501, a second connecting shaft 504 is provided. The outer end of one side of the first connecting shaft 502 is rotatably connected to the chain 3. On both the left and right sides of the first connecting shaft 502, pulleys 503 adapted to the first chute 20 are provided, and the first connecting shaft 502 moves along the first chute 20 through the pulleys 503. The second connecting shaft 504 is adaptively arranged in the second chute 21 and moves along the second chute 21.
[0029] There are four lifting mechanisms in total. The lifting mechanism includes a second telescopic rod 8, a protective shell 9, a slider 11 and a roller 12. The second telescopic rod 8 and the protective shell 9 are fixedly connected to the vehicle frame. The second telescopic rod 8 is located at the top of the protective shell 9. The lower side of the protective shell 9 has an opening, and the upper side has a connection hole adapted to the second telescopic rod 8. On the side walls of a pair of opposite sides in the protective shell 9, third moving grooves 10 are correspondingly provided. The slider 11 is adaptively arranged in the protective shell 9. Both sides of the slider 11 have sliding rods adapted to the third moving grooves 10, and the slider 11 moves up and down along the third moving grooves 10 through the sliding rods. A roller 12 is provided at the bottom of the slider 11. The slider 11 moves up and down along the protective shell 9 driven by the second telescopic rod 8, so that the roller 12 realizes the position conversion of protruding or retracting relative to the protective shell 9.
[0030] The toothed load vehicle has two motion modes, namely the flat-ground walking mode and the stair-climbing walking mode, and the two modes can be switched under the cooperation of the first telescopic rod 4 and the second traveling mechanism. When in the flat-ground walking mode, the motor 6 drives the gear 2 to rotate through the transmission shaft 7, and the gear 2 drives a plurality of toothed teeth 5 to move along the first chute 20 and the second chute 21 simultaneously through the chain 3. Moreover, the side of the toothed tooth 5 provided with the buffer pad 501 protrudes from the edges of the first tread plate 101 and the second tread plate 102 to contact the relatively flat ground, and the buffer pad 501 is used for buffering and shock absorption. When in the stair-climbing walking mode, the motor 6 drives the gear 2 to rotate through the transmission shaft 7, and the gear 2 drives a plurality of toothed teeth 5 to move along the first chute 20 and the second chute 21 simultaneously through the transmission shaft 7. Subsequently, the first telescopic rod 4 drives the pressure rod 17 to move downward along the first moving groove 19, the pressure rod 17 presses down the second traveling mechanism through the second moving groove 15, and at the same time, the limiting groove 16 moves downward along the limiting rod 18. The limiting rod 18 and the limiting groove 16 cooperate to limit the second traveling mechanism. As the second traveling mechanism is pressed down, the position of the second chute 21 relative to the first tread plate 101 and the second tread plate 102 will be changed, thereby changing the angle of the toothed tooth 5, and further enabling the buffer pad 501 of the toothed tooth 5 to fully contact the top surface of the stairs, realizing the stair-climbing function. When encountering a complex road surface, the movable end of the second telescopic rod 8 expands and contracts, driving the slider 11 to move downward along the third moving groove 10 of the protective shell 9 through the slide rod, so that the roller 12 protrudes from the protective shell 9 and completely lifts the vehicle frame, and only the roller 12 contacts the ground. At this time, the staff pushes the vehicle frame and moves it using the roller 12.
[0031] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the essence of the present invention should also fall within the protection scope of the present invention.
Claims
1. A grouser-type load vehicle, characterized in that: The invention comprises a vehicle frame and a travelling device arranged on the vehicle frame, wherein the travelling device comprises a motor (6), a first travelling mechanism, a second travelling mechanism and a plurality of grousers (5), wherein the motor (6) is fixed on the vehicle frame and is in driving connection with the first travelling mechanism; the first travelling mechanism comprises a grouser plate (1), each of which is provided with a first slide groove (20), and the first travelling mechanism drives one end of each of the grousers (5) to move along the first slide groove (20) through a chain (3); the second travelling mechanism comprises a supporting plate, each of which is provided with a second slide groove (21), and the other end of each of the grousers (5) is adapted to move along the second slide groove (21); the second travelling mechanism is located in the first travelling mechanism and is connected to the first travelling mechanism through a plurality of first telescopic rods (4), and the second travelling mechanism moves up and down relative to the first travelling mechanism under the action of each of the first telescopic rods (4), thereby changing the inclination angle of each of the grousers (5) relative to the first travelling mechanism.
2. A grouser-type load vehicle according to claim 1, characterized in that: The travel device is symmetrically arranged on the left and right sides of the frame, the first travel mechanism has a gear (2), the track plate (1) is arranged on the left and right sides of the second travel mechanism, the gear (2) is rotatably connected to the front and rear ends of each track plate (1), the gears (2) located on the same side are connected by the chain (3), and the motor (6) drives the gear (2) to rotate through the transmission shaft (7).
3. A grouser-type load vehicle according to claim 2, characterized in that: The support plate comprises a first support plate (13) and a second support plate (14); a spacing between the first support plate (13) and the second support plate (14) is matched with the grouser (5); and the second slide groove (21) is arranged on an edge of the first support plate (13) and the second support plate (14) adjacent to the grouser (5).
4. A grouser-type load vehicle according to claim 3, characterized in that: The first support plate (13) and the second support plate (14) are provided with through holes (22) adapted to the transmission shaft (7), and the diameter of the through holes (22) is greater than the diameter of the transmission shaft (7).
5. The grouser-type load vehicle according to claim 2, characterized in that: Each of the first telescopic rods (4) is arranged on the outer side wall of the track plate (1), and a pressure rod (17) is arranged at the end of each of the first telescopic rods (4). The pressure rod (17) is connected to the second travel mechanism, and each of the track plates (1) is provided with a plurality of first movable grooves (19) along the vertical direction and adapted to the pressure rod (17).
6. A grouser-type load vehicle according to claim 5, characterized in that: The two first telescopic rods (4) located on opposite sides are connected via a pressure rod (17), and the first support plate (13) and the second support plate (14) are provided with a plurality of second movable grooves (15) extending in the transverse direction and matching with the pressure rod (17).
7. The grouser-type load vehicle according to claim 4, characterized in that: A limit rod (18) is fixedly connected between the two track plates (1), and the first support plate (13) and the second support plate (14) are both provided with corresponding limit grooves (16) along the vertical direction and adapted to the limit rod (18).
8. The grouser-type load vehicle according to claim 1, characterized in that: The grouser (5) is approximately triangular in shape, with a buffer pad (501) fixed on one side, a first connecting shaft (502) is arranged on the left and right sides of one end of the grouser (5) adjacent to the buffer pad (501), and a second connecting shaft (504) is arranged on the left and right sides of one end of the grouser (5) away from the buffer pad (501).
9. A grouser-type load vehicle according to claim 8, characterized in that: The end of the first connecting shaft (502) is rotationally connected to the chain (3), and a pulley (503) adapted to the first slide groove (20) is provided on the first connecting shaft (502), and the first connecting shaft (502) moves along the first slide groove (20) through the pulley (503); the second connecting shaft (504) is adapted to be arranged in the second slide groove (21) and moves along the second slide groove (21).
10. The grouser-type load vehicle according to claim 1, characterized in that: The frame is provided with a lifting mechanism, which comprises a second telescopic rod (8), a protective shell (9), a slider (11) and a roller (12); the second telescopic rod (8) and the protective shell (9) are fixedly connected to the frame; the lower side of the protective shell (9) is open, and the upper side has a connecting hole adapted to the second telescopic rod (8); the slider (11) is adapted to be arranged in the protective shell (9); the top of the slider (11) is connected to the end of the second telescopic rod (8), and the bottom is connected to the roller (12); the slider (11) moves up and down along the protective shell (9) driven by the second telescopic rod (8), so that the roller (12) can realize a position conversion of protruding or retracting relative to the protective shell (9).