Two-stage steering tractor

Abstract

The utility model discloses a two-stage steering tractor which comprises a main frame, an auxiliary frame and a brake pad. A mounting frame is arranged on one side of the bottom of the main frame, a steering insertion shell A is arranged on the side edge of the mounting frame, and a steering insertion shell B is arranged on one side of the steering insertion shell A; the auxiliary frame is arranged on one side of the main frame; according to the two-stage steering mechanism, the steering shaft A, the steering shaft B, the related steering synchronizing rod, the steering plate and other components are matched, so that steering between the main frame and the auxiliary frame is more flexible and accurate, and different working scenes and steering requirements can be met; the operation capability of the tractor in a narrow space or a complex terrain is improved; the multiple mounting supports are arranged on the auxiliary frame and used for mounting the steering oil cylinders, stable transmission of steering power is guaranteed, the weight distribution of the whole structure is optimized through the design of the connecting frames, the balancing weights and other components, and the risk of shaking or rollover caused by gravity center change or steering force action in the working process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor technical field, concretely is a two-stage steering tractor. BACKGROUND

[0002] Wheel tractor, a kind of tractor, namely the walking device is the tractor of wheel.(Different from tracked tractor) there are two-wheel (hand tractor), four-wheel and various types, and it is divided into rear-wheel drive and four-wheel drive again.Large wheel tractor has good traction performance, is suitable for large farm with wide agricultural implement to carry out high-speed operation.

[0003] In prior art, most tractors can not adopt similar two-stage steering mechanism, lack the matched steering synchronizing rod and steering plate and other components, which can cause poor coordination between main frame and other components during steering, and the steering angle and precision are difficult to control, when working in narrow space or complex terrain, the tractor is difficult to adjust direction flexibly, and the situations of steering deficiency or oversteering are prone to occur, which can affect work efficiency and operation convenience, and affect the timeliness and accuracy of steering.In view of this, we launch a two-stage steering tractor. UTILITARIAN CONTENT

[0004] The utility model aims at providing a two-stage steering tractor to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a two-stage steering tractor, comprising: main frame, auxiliary frame and brake pad.

[0006] The bottom side of the main frame is provided with a mounting bracket, and the mounting bracket and the main frame are fixedly arranged, the side of the mounting bracket is provided with a steering plug shell A, and the side of the steering plug shell A is provided with a steering plug shell B.

[0007] The auxiliary frame is arranged on one side of the main frame, and the bottom side of the auxiliary frame is provided with a connecting bracket, and the connecting bracket and the auxiliary frame are fixedly arranged.

[0008] The brake pad is arranged on the side of the steering plug shell B, the side of the brake pad is provided with a tire mounting disc, the tire mounting disc is used for mounting tire, the side of the tire mounting disc is connected with a screw rod, and the screw rod and the tire mounting disc are fixedly arranged.

[0009] The two-stage steering mechanism is arranged between the main frame and the auxiliary frame, the steering shaft A and the steering shaft B of the two-stage steering mechanism are used in cooperation, so that the main frame and the auxiliary frame rotate at the hinge.

[0010] Preferably, the two-stage steering mechanism has slots on the surfaces of steering shaft A and steering shaft B for installing steering positioning shafts to provide steering. Steering shaft A is connected to the side of the main frame and is fixedly installed between the steering shaft A and the main frame. Steering shaft B is connected to the side of the subframe and is fixedly installed between the steering shaft B and the subframe.

[0011] Preferably, the side of the subframe is connected from top to bottom to mounting bracket A and mounting bracket B for mounting the steering cylinder, and the steering cylinder can be installed between mounting bracket A and mounting bracket B.

[0012] Preferably, a steering synchronization rod A is connected to the bottom of one side of the main frame, and one end of the steering synchronization rod A is connected to the bottom of the steering housing B. The steering synchronization rod A is used to drive the steering housing B to steer.

[0013] Preferably, a steering synchronization rod B is connected to one bottom side of the main frame, and a concave frame is connected to one side of the steering synchronization rod B. The concave frame and the steering synchronization rod B are fixedly connected. A steering plate is hinged inside the concave frame, and the steering plate is connected between the steering housing A and the steering housing B.

[0014] Preferably, there are four sets of connecting brackets, and a connecting shaft connects two sets of connecting brackets. The four sets of connecting brackets are respectively connected to the side of the subframe, and positioning wheels are respectively connected to the side of the connecting shaft. The positioning wheels are used to install tires.

[0015] Preferably, a counterweight is connected between the two sets of connecting frames. The counterweight is used to balance the weight distribution of the tractor, improve the stability of the tractor during operation or travel, and prevent rollover due to unstable center of gravity.

[0016] Preferably, a housing is connected to the surface of the connecting shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] (1) Through the dual-stage steering mechanism, the steering shaft A and steering shaft B, as well as related steering synchronizer rods and steering plates, make the steering between the main frame and the subframe more flexible and precise, adapting to different working scenarios and steering requirements, improving the tractor's ability to operate in narrow spaces or complex terrains, reducing the turning radius of large tractors, and making the tractor's steering smaller and more flexible.

[0019] (2) By setting multiple mounting brackets on the subframe for mounting the steering cylinder, the stable transmission of steering power is ensured. At the same time, the design of components such as the connecting frame and counterweight optimizes the weight distribution of the overall structure, enhances the stability of the tractor, and reduces the risk of swaying or overturning caused by changes in the center of gravity or steering force during operation.

[0020] (3) The brake pads are set close to the tire mounting plate, which facilitates the braking operation of the tire and improves the timeliness and effectiveness of braking. The tire is mounted on the tire mounting plate by screws. This installation method is simple and reliable and facilitates tire replacement and maintenance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the mounting bracket, steering housing A and steering housing B of this utility model when connected;

[0023] Figure 3 This is a structural diagram showing the connection between the main frame and the subframe of this utility model;

[0024] Figure 4 This is a top view of the structure of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the present invention.

[0026] In the diagram: 1. Steering synchronizer A; 2. Brake pad; 3. Tire mounting plate; 4. Steering synchronizer B; 5. Steering housing A; 6. Steering plate; 7. Steering housing B; 8. Hollow slot; 9. Subframe; 10. Mounting bracket A; 11. Mounting bracket B; 12. Steering shaft A; 13. Main frame; 14. Concave frame; 15. Positioning wheel; 16. Counterweight; 17. Connecting frame; 18. Screw; 19. Mounting bracket; 20. Steering shaft B; 21. Connecting shaft; 22. Housing. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5This utility model provides a technical solution: a two-stage steering tractor, including: a main frame 13, a mounting bracket 19 is provided on one side of the bottom of the main frame 13, a steering housing A5 is provided on the side of the mounting bracket 19, and a steering housing B7 is provided on one side of the steering housing A5.

[0029] Subframe 9, which is disposed on one side of main frame 13, and a connecting frame 17 is provided on the bottom side of subframe 9;

[0030] Brake pad 2, the brake pad 2 is disposed on the side of the steering housing B7, a tire mounting disc 3 is disposed on one side of the brake pad 2, and a screw 18 is connected to the side of the tire mounting disc 3;

[0031] A two-stage steering mechanism is provided between the main frame 13 and the sub-frame 9. Through the cooperation of the steering shaft A12 and the steering shaft B20 of the two-stage steering mechanism, the main frame 13 and the sub-frame 9 can rotate at the hinge.

[0032] The two-stage steering mechanism has slots 8 on the surfaces of steering shaft A12 and steering shaft B20. The slots 8 are used to install steering positioning shafts and provide steering. Steering shaft A12 is connected to the side of the main frame 13 and is fixedly installed between the steering shaft A12 and the main frame 13. Steering shaft B20 is connected to the side of the sub-frame 9 and is fixedly installed between the steering shaft B20 and the sub-frame 9.

[0033] The side of the subframe 9 is connected from top to bottom to mounting brackets A10 and B11 for mounting steering cylinders, and the steering cylinder can be installed between mounting brackets A10 and B11.

[0034] A steering synchronizing rod A1 is connected to one side bottom of the main frame 13. One end of the steering synchronizing rod A1 is connected to the bottom of the steering housing B7. The steering synchronizing rod A1 is used to drive the steering housing B7 to steer.

[0035] A steering synchronization rod B4 is connected to one side of the bottom of the main frame 13. A concave frame 14 is connected to one side of the steering synchronization rod B4. The concave frame 14 and the steering synchronization rod B4 are fixedly connected. A steering plate 6 is hinged inside the concave frame 14, and the steering plate 6 is connected between the steering housing A5 and the steering housing B7.

[0036] There are four sets of connecting brackets 17, and a connecting shaft 21 is connected between two sets of connecting brackets 17. The four sets of connecting brackets 17 are respectively connected to the side of the subframe 9. The side of the connecting shaft 21 is respectively connected to a positioning wheel 15, which is used to install tires.

[0037] A counterweight 16 is connected between the two sets of connecting frames 17. The counterweight 16 is used to balance the weight distribution of the tractor, improve the stability of the tractor during operation or travel, and prevent rollover due to unstable center of gravity.

[0038] The surface of the connecting shaft 21 is connected to the housing 22.

[0039] Specifically, during use, when steering is required, the steering cylinder (mounted on mounting brackets A10 and B11) begins to work. The extension and retraction of the steering cylinder will push the subframe 9 to rotate relative to the main frame 13. During this process, the steering shafts A12 and B20 play a key role in hinge and rotation support, and the slots 8 on their surfaces may be used to install related connecting parts to form rotation. Meanwhile, the steering synchronizing rods A1 and B4 on the bottom side of the main frame 13 work together. The steering synchronizing rod A1 is connected to the bottom of the steering housing B7, and the steering synchronizing rod B4 is connected to the steering housings A5 and B7 through the concave frame 14 and the hinged steering plate 6. This ensures the synchronicity and coordination between the main frame 13 and the subframe 9 during steering, making the steering action smoother and more accurate, reducing the turning radius of the large tractor, and improving the tractor's ability to operate in confined spaces or complex terrain. The two-stage steering mechanism makes the tractor's steering smaller and more flexible.

[0040] The tire is mounted on the tire mounting plate 3 and fastened by the screw 18. The brake pad 2 is located on the side of the steering housing B7. When braking is required, the brake pad 2 can brake the tire to ensure the driving safety of the tractor.

[0041] The four sets of connecting frames 17 serve to connect the subframe 9 and other components. The connecting shaft 21 connecting two sets of connecting frames 17 is equipped with positioning wheels 15. Tires are installed on these positioning wheels 15 to assist the movement of the tractor or to provide other support, guidance, etc. The counterweight 16 connecting two sets of connecting frames 17 is used to balance the weight distribution of the tractor, improve the stability of the tractor during operation or travel, and prevent rollover due to unstable center of gravity.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A two-stage steering tractor, characterized in that, include: The main frame (13) has a mounting bracket (19) on one side of its bottom. The mounting bracket (19) has a steering housing A (5) on its side and a steering housing B (7) on one side of the steering housing A (5). Subframe (9), the subframe (9) is disposed on one side of the main frame (13), and a connecting frame (17) is provided on one side of the bottom of the subframe (9). Brake pad (2), the brake pad (2) is disposed on the side of steering housing B (7), a tire mounting disc (3) is disposed on one side of the brake pad (2), and a screw (18) is connected to the side of the tire mounting disc (3). A dual-stage steering mechanism is provided between the main frame (13) and the subframe (9). The main frame (13) and the subframe (9) rotate at the hinge by the cooperation of the steering shaft A (12) and the steering shaft B (20) of the dual-stage steering mechanism.

2. A two-stage steering tractor according to claim 1, characterized in that, The two-stage steering mechanism has slots (8) on the surfaces of steering shaft A (12) and steering shaft B (20). Steering shaft A (12) is connected to the side of the main frame (13), and steering shaft B (20) is connected to the side of the subframe (9).

3. A two-stage steering tractor according to claim 1, characterized in that, The side of the subframe (9) is connected from top to bottom to mounting brackets A (10) and B (11) for mounting steering cylinders.

4. A two-stage steering tractor according to claim 1, characterized in that, The bottom of one side of the main frame (13) is connected to a steering synchronizing rod A (1), and one end of the steering synchronizing rod A (1) is connected to the bottom of the steering housing B (7).

5. A two-stage steering tractor according to claim 1, characterized in that, The bottom of one side of the main frame (13) is connected to a steering synchronizing rod B (4), and one side of the steering synchronizing rod B (4) is connected to a concave frame (14). The interior of the concave frame (14) is hinged to a steering plate (6), and the steering plate (6) is connected between the steering housing A (5) and the steering housing B (7).

6. A two-stage steering tractor according to claim 1, characterized in that, The number of connecting frames (17) is four sets, and a connecting shaft (21) is connected between two sets of connecting frames (17). Positioning wheels (15) are connected to the sides of the connecting shaft (21).

7. A two-stage steering tractor according to claim 1, characterized in that, A counterweight (16) is connected between the two sets of connecting frames (17).

8. A two-stage steering tractor according to claim 6, characterized in that, The surface of the connecting shaft (21) is connected to the housing (22).

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