An agricultural track carrier

Abstract

The application discloses an agricultural caterpillar transport vehicle, which comprises a gearbox, a first front pull rod, a second front pull rod, a steering machine and a rotating disc, wherein the gearbox is provided with a first steering control end and a second steering control end; the output shaft of the steering machine is in transmission connection with the midpoint of the rotating disc; the two ends of the rotating disc in the length direction are respectively provided with a first arc-shaped slot and a second arc-shaped slot; one end of the first front pull rod is in sliding connection with the first arc-shaped slot, and the other end of the first front pull rod is hinged to the first steering control end; one end of the second front pull rod is in sliding connection with the second arc-shaped slot, and the other end of the second front pull rod is hinged to the second steering control end. The caterpillar transport vehicle can have a driving method similar to that of a common automobile, the probability of misoperation is reduced, and the safety is improved.

Description

Technical Field

[0001] This invention relates to the field of tracked vehicle technology, and in particular to an agricultural tracked transport vehicle. Background Technology

[0002] Currently, mini tracked transporters equipped with internal combustion engines generally use mechanical transmission. They are equipped with an integrated drive axle, and steering is achieved by controlling the engagement and disengagement of the steering gear inside the drive axle. Specifically, when the machine is running in a straight line, both tracks work simultaneously; when a turn is needed, the operator pulls the control lever located in front of the operator, causing the steering gear inside the drive axle to disengage, the track on that side to stop running, and the machine to turn in that direction.

[0003] However, the aforementioned steering control method presents significant operational risks in practical use. Operators must manually operate the control levers, which can easily lead to misoperation, especially for novice users. If the wrong direction is operated, the machine will veer in the opposite direction, potentially causing a safety accident. This risk of misoperation poses a significant threat to the personal safety of operators, particularly in models where the operator follows the machine (non-riding type). Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an agricultural tracked transport vehicle that reduces the probability of misoperation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An agricultural tracked transport vehicle includes a gearbox having a first steering control end and a second steering control end, and further includes a first front tie rod, a second front tie rod, a steering gear, and a turntable; The output shaft of the steering gear is connected to the midpoint of the rotating disk via a transmission connection. The rotating disk has a first arc-shaped groove and a second arc-shaped groove respectively opened at both ends along its length. One end of the first front tie rod is slidably connected to the first arc-shaped groove, and the other end of the first front tie rod is hinged to the first steering control end; One end of the second front tie rod is slidably connected to the second arc-shaped groove, and the other end of the second front tie rod is hinged to the second steering control end.

[0006] The beneficial effects of this invention are as follows: by setting a rotating disk and a first front tie rod and a second front tie rod, the rotating disk transmits the action of the steering gear to the corresponding first front tie rod or second front tie rod, and the first front tie rod or second front tie rod controls the steering control end of the gearbox to form a differential, thereby completing the steering. The transmission control of the gearbox is realized by rotation, which makes it easier to control the direction of the tracked transport vehicle through the steering wheel, thereby reducing the probability of misoperation. Attached Figure Description

[0007] Figure 1 This is a partial structural diagram of the tracked agricultural transport vehicle of the present invention. Figure 1 ; Figure 2 This is a partial top view of the agricultural tracked transport vehicle in the present invention with the steering wheel in a neutral position; Figure 3 This is a partial top view of the agricultural tracked transport vehicle in this invention with the steering wheel in a counterclockwise rotation state; Figure 4 This is a partial top view of the agricultural tracked transport vehicle in this invention with the steering wheel in a clockwise rotation state.

[0008] Label Explanation: 1. Gearbox; 11. First steering control terminal; 12. Second steering control terminal; 2. Steering wheel; 3. Steering column; 4. Universal joint; 5. First front tie rod; 51. First bent connecting part; 52. Second bent connecting part; 53. First steering sleeve; 54. First steering control arm; 55. First rear tie rod; 56. Third steering control arm; 6. Second front tie rod; 61. Third bent connection; 62. Fourth bent connection; 63. Second steering sleeve; 64. Second steering arm; 65. Second rear tie rod; 66. Fourth steering arm; 7. Steering gear; 8. Rotating disk; 81. First arc-shaped groove; 82. Second arc-shaped groove; 9. Steering gear shift fork shaft; 10. First limiting component; 20. Second limiting component. Detailed Implementation

[0009] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0010] Please refer to Figures 1-4 An agricultural tracked transport vehicle includes a gearbox 1 and a steering wheel 2, a steering column 3, and a universal joint 4 connected in sequence. The gearbox 1 has a first steering control end 11 and a second steering control end 12, and also includes a first front tie rod 5, a second front tie rod 6, a steering gear 7, and a turntable 8. The end of the universal joint 4 away from the steering column 3 is connected to the input end of the steering gear 7. The output shaft of the steering gear 7 is connected to the midpoint of the turntable 8. The two ends of the turntable 8 in the length direction are respectively provided with a first arc-shaped groove 81 and a second arc-shaped groove 82. One end of the first front tie rod 5 is slidably connected to the first arc-shaped groove 81, and the other end of the first front tie rod 5 is hinged to the first steering control end 11. One end of the second front tie rod 6 is slidably connected to the second arc-shaped groove 82, and the other end of the second front tie rod 6 is hinged to the second steering control end 12.

[0011] It is understandable that by setting up a rotating disk 8 and a first front tie rod 5 and a second front tie rod 6, the rotating disk 8 transmits the action of the steering gear 7 to the corresponding first front tie rod 5 or second front tie rod 6. The first front tie rod 5 or second front tie rod 6 controls the steering control end of the gearbox 1 to form a differential, thereby completing the steering. The transmission control of the gearbox 1 is achieved by rotation, which makes it easier to control the direction of the tracked transport vehicle through the steering wheel 2, thereby reducing the probability of misoperation.

[0012] In some embodiments, the other end of the first front tie rod 5 is connected to the first steering control terminal 11 via the first steering sleeve 53, and the other end of the second front tie rod 6 is connected to the second steering control terminal 12 via the second steering sleeve 63. Specifically, when the rotating disk 8 drives the first front tie rod 5 to move away from the front of the vehicle, the first steering sleeve 53 drives the steering gear shift fork shaft 9 on the first steering control terminal 11 to actuate, disengaging the steering gear on that side and enabling the vehicle to turn left. When the rotating disk 8 rotates in the opposite direction (counterclockwise), the first front tie rod 5 drives the steering gear to reset. When the rotating disk 8 continues to rotate counterclockwise, the second front tie rod 6 drives the steering gear shift fork shaft 9 on the second steering control terminal 12 via the second steering sleeve 63 to actuate, disengaging the steering gear on that side and enabling the vehicle to turn right.

[0013] In some embodiments, the end of the first steering sleeve 53 away from the first front tie rod 5 is drive-connected to the first steering control terminal 11 via the first rear tie rod 55; the end of the second steering sleeve 63 away from the second front tie rod 6 is drive-connected to the second steering control terminal 12 via the second rear tie rod 65; the axes of the first front tie rod 5 and the first rear tie rod 55 are parallel to each other, and the axes of the second front tie rod 6 and the second rear tie rod 65 are parallel to each other. Specifically, the first steering sleeve 53 is connected to the first front tie rod 5 via the first steering swing arm 54, and the second steering sleeve 63 is connected to the second front tie rod 6 via the second steering swing arm 64. Further, one end of the first steering swing arm 54 and the second steering swing arm 64 is fixedly connected to the corresponding rotating sleeve, and the other end of the first steering swing arm 54 and the second steering swing arm 64 is hinged to the corresponding front tie rod; one end of the third steering swing arm 56 and the fourth steering swing arm 66 is fixedly connected to the corresponding rotating sleeve, and the other end of the third steering swing arm 56 and the fourth steering swing arm 66 is hinged to the corresponding rear tie rod.

[0014] Preferably, the steering gear 7 is a gear-driven steering gear 7, used to rotate the turntable 8 in the opposite direction when the steering wheel 2 rotates, thereby driving the tracked vehicle to turn in the direction of the steering wheel 2. Taking the steering wheel 2 rotating counterclockwise as an example, the turntable 8 rotates clockwise. The first front tie rod 5 controls the left track of the tracked transport vehicle, and the second front tie rod 6 controls the right track of the tracked transport vehicle. When the first front tie rod 5 controls the first steering control end 11 of the gearbox 1, the steering gear on the first steering control end 11 disengages, the left track stops working, while the right track remains running to form a differential, driving the tracked vehicle to turn left.

[0015] In other equivalent embodiments, if no steering sleeve and rear tie rod are provided, the first front tie rod 5 and the second front tie rod 6 are selected as flexible shafts so that the first front tie rod 5 and the second front tie rod 6 are directly connected to the corresponding steering gear shift fork shaft 9.

[0016] In some embodiments, the length of the first steering sleeve 53 is less than the length of the second steering sleeve 63 to ensure that the first front tie rod 5 can form a stable connection with the first rear tie rod 55 and avoid motion interference between the first rear tie rod 55 and the second rear tie rod 65.

[0017] In some embodiments, the first front tie rod 5 has a first bent connecting portion 51 and a second bent connecting portion 52 at both ends; the first bent connecting portion 51 is slidably connected to the rotating disk 8, and the second bent connecting portion 52 is hinged to the first steering control end 11. The first bent connecting portion 51 and the second bent connecting portion 52 are provided to form a stable connection between the rotating disk 8 and the gearbox 1. Similarly, the second front tie rod 6 has a third bent connecting portion 61 and a fourth bent connecting portion 62 at both ends; the third bent connecting portion 61 is slidably connected to the rotating disk 8, and the fourth bent connecting portion 62 is hinged to the second steering control end 12.

[0018] In some embodiments, a first limiting member 10 is further included; the outer diameter of the first limiting member 10 is greater than the width of the first arcuate groove 81; in the vertical direction, one end of the first bent connecting portion 51 passes through the rotating disk 8 and is connected to the first limiting member 10. Specifically, the first limiting member 10 is connected to the first bent connecting portion 51 to restrict the degree of freedom of the first bent connecting portion 51 in the vertical direction, thereby improving structural stability.

[0019] In some embodiments, a second limiting member 20 connected to the first front pull rod 5 is further included; in the thickness direction of the rotating disk 8, the first limiting member 10 and the second limiting member 20 are respectively disposed on both sides of the rotating disk 8 and abut against the rotating disk 8. Specifically, the outer diameter of the second limiting member 20 is larger than the width of the first arc-shaped groove 81. The first limiting member 10 and the second limiting member 20 cooperate to clamp the rotating disk 8, restrict the vertical degree of freedom of the first front pull rod 5, and make the first front pull rod 5 slidably connected to the rotating disk 8.

[0020] Embodiment 1 of the present invention is as follows: An agricultural tracked transport vehicle includes a gearbox 1, a first front tie rod 5, a second front tie rod 6, a steering gear 7, a turntable 8, a first limiting member 10, a second limiting member 20, a first steering sleeve 53, a second steering sleeve 63, a first rear tie rod 55, a second rear tie rod 65, and a steering wheel 2, a steering column 3, and a universal joint 4 connected in sequence. The end of the universal joint 4 away from the steering column 3 is connected to the input end of the steering gear 7. The gearbox 1 has a first steering control end 11 and a second steering control end 12. The output shaft of the steering gear 7 is connected to the midpoint of the turntable 8. The two ends of the turntable 8 in the length direction are respectively provided with a first arc-shaped groove 81 and a second arc-shaped groove 82. One end of the first front tie rod 5 is slidably connected to the first arc-shaped groove 81, and the other end of the first front tie rod 5 is hinged to the first steering control end 11. One end of the second front tie rod 6 is slidably connected to the second arc-shaped groove 82, and the other end of the second front tie rod 6 is hinged to the second steering control end 12. Specifically, the first steering control end 11 and the second steering control end 12 are respectively provided with steering gear shift fork shafts 9.

[0021] In this embodiment, the other end of the first front tie rod 5 is connected to the first steering control terminal 11 via the first steering sleeve 53, and the other end of the second front tie rod 6 is connected to the second steering control terminal 12 via the second steering sleeve 63. The end of the first steering sleeve 53 away from the first front tie rod 5 is connected to the first steering control terminal 11 via the first rear tie rod 55. The end of the second steering sleeve 63 away from the second front tie rod 6 is connected to the second steering control terminal 12 via the second rear tie rod 65. The axes of the first front tie rod 5 and the first rear tie rod 55 are parallel to each other, and the axes of the second front tie rod 6 and the second rear tie rod 65 are parallel to each other. Specifically, the first steering sleeve 53 is connected to the first front tie rod 5 via the first steering swing arm 54, and the second steering sleeve 63 is connected to the second front tie rod 6 via the second steering swing arm 64. Further, one end of the first steering swing arm 54 and the second steering swing arm 64 is fixedly connected to the corresponding rotating sleeve. The other ends of the first steering arm 54 and the second steering arm 64 are hinged to the corresponding front tie rods, one end of the third steering arm 56 and the fourth steering arm 66 is fixedly connected to the corresponding rotating sleeves, and the other end of the third steering arm 56 and the fourth steering arm 66 is hinged to the corresponding rear tie rods.

[0022] In this embodiment, the two ends of the first front pull rod 5 have a first bent connecting portion 51 and a second bent connecting portion 52, respectively; in the vertical direction, the first bent connecting portion 51 and the second bent connecting portion 52 extend in opposite directions; the first bent connecting portion 51 is slidably connected to the rotating disk 8, and the second bent connecting portion 52 is hinged to the first steering control end 11. The two ends of the second front pull rod 6 have a third bent connecting portion 61 and a fourth bent connecting portion 62, respectively; in the vertical direction, the third bent connecting portion 61 and the fourth bent connecting portion 62 extend in opposite directions; the third bent connecting portion 61 is slidably connected to the rotating disk 8, and the fourth bent connecting portion 62 is hinged to the second steering control end 12.

[0023] In this embodiment, the outer diameter of the first limiting member 10 is larger than the width of the first arc-shaped groove 81; in the vertical direction, one end of the first bent connecting portion 51 passes through the rotating disk 8 and is connected to the first limiting member 10. Specifically, the first limiting member 10 is connected to the first bent connecting portion 51, and in the thickness direction of the rotating disk 8, the first limiting member 10 and the second limiting member 20 are respectively disposed on both sides of the rotating disk 8 and abut against the rotating disk 8; the outer diameter of the second limiting member 20 is larger than the width of the first arc-shaped groove 81. The third bent connecting portion 61 of the second front pull rod 6 is also provided with a first limiting member 10.

[0024] The working principle of this invention is as follows: Reference Figure 2 When the steering wheel 2 is in the neutral position, the turntable 8 is also in the neutral position. At this time, the first front tie rod 5 and the second front tie rod 6 are in a symmetrical state, the left steering gear and the right steering gear of the gearbox 1 are both in a meshed state, and the transport vehicle is in a straight-line state. Reference Figure 3 When the steering wheel 2 rotates counterclockwise (left turn), the steering gear 7 drives the rotating disk 8 to rotate clockwise, the first front tie rod 5 moves away from the front of the vehicle, and simultaneously drives the first steering sleeve 53, the first steering arm 54, and the third steering arm 56 to rotate, which in turn drives the first rear tie rod 55 to move away from the front of the vehicle. The steering gear shift fork shaft 9 on the first steering control end 11 rotates counterclockwise, the left steering gear of the gearbox 1 disengages, the left track of the tracked transport vehicle stops running, and at the same time, the second arc groove 82 slides relative to the second front tie rod 6, the second front tie rod 6 remains stationary, the right track continues to run, and the vehicle turns left. Reference Figure 4When the steering wheel 2 changes from counterclockwise to clockwise rotation (left turn to right turn), the steering gear 7 drives the rotating disc 8 to rotate counterclockwise. The first front tie rod 5 moves towards the front of the vehicle, simultaneously driving the first steering sleeve 53, the first steering arm 54, and the third steering arm 56 to rotate. This, in turn, drives the first rear tie rod 55 to move towards the front of the vehicle. The steering gear shift fork shaft 9 connected to the first rear tie rod 55 rotates clockwise, the left steering gear of the transmission 1 returns to its original position, and when the steering wheel 2 is turned to the neutral position, the second front tie rod 6... Keeping stationary, the steering wheel 2 continues to rotate clockwise, and the end of the second arc-shaped groove 82 presses against the second front tie rod 6, causing the rotating disk 8 to drive the second front tie rod 6 to move away from the front of the vehicle. Simultaneously, it drives the second steering sleeve 63, the second steering swing arm 64, and the fourth steering swing arm 66 to rotate, which in turn drives the second rear tie rod 65 to move away from the front of the vehicle. The steering gear shift fork shaft 9 rotates clockwise, the right steering gear of the gearbox 1 disengages, the right track of the tracked transport vehicle stops running, and the left track continues to run, thus achieving a right turn.

[0025] It is worth noting that the "front of the car" mentioned above refers to the direction along the length of the vehicle, closer to the end where the steering wheel 2 is located.

[0026] In summary, the present invention provides an agricultural tracked transport vehicle. By incorporating a steering mechanism, a first front tie rod, a second front tie rod, and a steering wheel, the vehicle's steering can be controlled via the steering wheel, maintaining consistency with conventional driving habits, thereby reducing the occurrence of misoperation and improving the safety of the agricultural tracked transport vehicle.

[0027] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An agricultural tracked transport vehicle, comprising a gearbox, the gearbox having a first steering control end and a second steering control end, characterized in that, It also includes a first front tie rod, a second front tie rod, a steering gear, and a turntable; The output shaft of the steering gear is connected to the midpoint of the rotating disk via a transmission connection. The rotating disk has a first arc-shaped groove and a second arc-shaped groove respectively opened at both ends along its length. One end of the first front tie rod is slidably connected to the first arc-shaped groove, and the other end of the first front tie rod is hinged to the first steering control end; One end of the second front tie rod is slidably connected to the second arc-shaped groove, and the other end of the second front tie rod is hinged to the second steering control end.

2. The agricultural tracked transport vehicle according to claim 1, characterized in that, The other end of the first front tie rod is connected to the first steering control end through a first steering sleeve, and the other end of the second front tie rod is connected to the second steering control end through a second steering sleeve.

3. An agricultural tracked transport vehicle according to claim 2, characterized in that, The end of the first steering sleeve furthest from the first front tie rod is connected to the first steering control end via the first rear tie rod; The end of the second steering sleeve away from the second front tie rod is connected to the second steering control end via the second rear tie rod; The axes of the first front tie rod and the first rear tie rod are parallel to each other, and the axes of the second front tie rod and the second rear tie rod are parallel to each other.

4. An agricultural tracked transport vehicle according to claim 2, characterized in that, The length of the first steering sleeve is less than the length of the second steering sleeve.

5. An agricultural tracked transport vehicle according to claim 1, characterized in that, The first front pull rod has a first bent connecting part and a second bent connecting part at both ends; The first bent connecting part is slidably connected to the rotating disk, and the second bent connecting part is hinged to the first steering control end.

6. An agricultural tracked transport vehicle according to claim 1, characterized in that, It also includes the first limiting component; The outer diameter of the first limiting member is greater than the width of the first arc-shaped groove; In the vertical direction, one end of the first bent connecting part passes through the rotating disk and is connected to the first limiting member.

7. An agricultural tracked transport vehicle according to claim 1, characterized in that, It also includes the steering wheel, steering column, and universal joint connected in sequence; The end of the universal joint furthest from the steering column is connected to the input end of the steering gear.

8. An agricultural tracked transport vehicle according to claim 7, characterized in that, The steering gear is a gear-driven steering gear.

9. An agricultural tracked transport vehicle according to claim 6, characterized in that, It also includes a second limiting member connected to the first front pull rod; In the thickness direction of the rotating disk, the first limiting member and the second limiting member are respectively disposed on both sides of the rotating disk and press against the rotating disk.

10. An agricultural tracked transport vehicle according to claim 1, characterized in that, Both the first and second front tie rods are flexible shafts.

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