Steering device of bidirectional driving vehicle

Abstract

The invention discloses a steering device of a two-way driving vehicle. The steering device comprises a vehicle frame and a steering mechanism. The front steering mechanism and the rear steering mechanism are arranged on the lower portions of the ends of the two sides of the frame respectively and specifically comprise a steering oil cylinder, a centering oil cylinder, a steering swing arm I, a steering swing arm II, a pull rod I, a pull rod II and a pull rod III, and the steering swing arm I is connected with the steering swing arm II and a first axis axle steering knuckle through two longitudinal pull rods of the pull rod I and the pull rod II. The steering swing arm II is connected with a second axis car compartment steering knuckle through a pull rod III; two ends of the centering oil cylinder are respectively connected with the steering swing arm II and the frame; the steering oil cylinder is installed on the axle and connected with the side steering knuckle arms of the steering knuckles at the two ends through pull rods. The operation rooms or the cabs at the two ends of the two-way driving transport vehicle can control the steering of the wheels at the two ends, the steering mode can be multi-mode steering, the structure is compact, the layout is ingenious, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle steering, and in particular to a steering device for a bidirectional driving vehicle. Background Art

[0002] Some special construction sites, such as mines, tunnels, and high-speed railway support layers, are limited by space or in order to improve work efficiency, requiring construction and transportation vehicles to be able to drive in both directions, and the steering mode must be multi-mode steering when driving in both directions. Therefore, it is urgent to develop a steering device for two-way driving vehicles. Summary of the invention

[0003] In view of the above problems, the present invention provides a steering device for a bidirectional driving vehicle.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A steering device for a two-way driving vehicle comprises a frame and a steering mechanism; the steering mechanism is provided with a front group and a rear group, which are respectively arranged at the lower end parts of both sides of the frame, and comprises a steering oil cylinder, a centering oil cylinder, a steering swing arm I, a steering swing arm II, a tie rod I, a tie rod II, and a tie rod III; the steering swing arm I is connected to the steering swing arm II and the first axis axle steering knuckle through two longitudinal tie rods, tie rod I and tie rod II; the steering swing arm II is connected to the second axis car steering knuckle through tie rod III; the two ends of the centering oil cylinder are respectively connected to the steering swing arm II and the frame; the steering oil cylinder is installed on the axle, and the steering oil cylinder is connected to the side steering knuckle arms of the steering knuckles at both ends through tie rods.

[0006] As a preferred embodiment of the above scheme, the steering swing arm I is located at the end of the frame, and the steering swing arm I and the steering swing arm II are connected to the frame through the steering swing arm pin seat I and the steering swing arm pin seat II respectively.

[0007] As a preferred embodiment of the above scheme, the pull rod I is located above the pull rod II, and its two ends are respectively hinged to the steering swing arm I and the steering swing arm II through pins.

[0008] As a preferred embodiment of the above scheme, the tie rod II and tie rod III are both hinged to the steering swing arm through a pin shaft, and are hinged to the upper steering knuckle arm on the axle steering knuckle through a pin shaft hole and a pin shaft.

[0009] As a preferred embodiment of the above scheme, the steering cylinder is a single-piston double-piston rod structure, the cylinder barrel is fixed on the vehicle axle, and the piston rod is hinged to the side steering knuckle arms of the steering knuckles at both ends through a pull rod.

[0010] As a preferred embodiment of the above solution, the number of the steering cylinders corresponds to the number of vehicle wheels.

[0011] As a preferred embodiment of the above scheme, one end of the centering cylinder is mounted on a cylinder support on the vehicle frame, and the other end is hinged on a steering swing arm II between the two axis lines.

[0012] As a preferred embodiment of the above solution, an angle sensor is installed on the steering knuckle of the vehicle sedan.

[0013] Due to the above structure, the beneficial effects of the present invention are:

[0014] The operating cabs or cabs at both ends of the two-way driving transport vehicle can control the steering of the wheels at both ends, and the steering mode can be multi-mode steering, with a compact structure, ingenious layout and a wide range of applications. When the driving mode is the front axle steering mode, the power steering gear at one end of the corresponding operation is turned, and the wheels at the other end are in the middle position and will be locked by the corresponding centering cylinder; when the driving mode is the eight-shaped steering and diagonal mode, the steering operation is operated by the steering wheel in the cab to operate the power steering gear to push the front group steering, and the front group steering angle signal controls the rear group steering to achieve the vehicle eight-shaped and diagonal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0016] Figure 1 It is a front view structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 4 for Figure 3 A partial enlarged view of

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the figure eight steering mode;

[0022] Figure 7 It is a schematic diagram of the oblique steering mode;

[0023] Figure 8 Schematic diagram of the front axle steering mode. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 5 As shown, this embodiment provides a steering device for a bidirectional driving vehicle, including a frame 10 and a steering mechanism; the steering mechanism is provided with a front group and a rear group, which are respectively arranged at the lower end of both sides of the frame 10, and specifically include a steering cylinder 8, a centering cylinder 6, a steering swing arm Ⅰ1, a steering swing arm Ⅱ4, a tie rod Ⅰ3, a tie rod Ⅱ2, and a tie rod Ⅲ5;

[0026] The steering swing arm Ⅰ1 is connected to the steering swing arm Ⅱ4 and the first axis axle steering knuckle 11 through two longitudinal tie rods, tie rod Ⅰ3 and tie rod Ⅱ5; the steering swing arm Ⅱ4 is connected to the second axis car steering knuckle 11 through tie rod Ⅲ2; the two ends of the centering cylinder 6 are respectively connected to the steering swing arm Ⅱ4 and the frame 10; the steering cylinder 8 is installed on the axle, and the steering cylinder 8 is connected to the side steering knuckle arms of the steering knuckles 11 at both ends through tie rods.

[0027] In this embodiment, the steering swing arm I1 is located at the end of the frame 10, and the steering swing arm I1 and the steering swing arm II4 are connected to the frame 10 through the steering swing arm pin seat I7 and the steering swing arm pin seat II9 respectively.

[0028] In this embodiment, the pull rod I3 is located above the pull rod II2, and its two ends are respectively hinged to the steering swing arm I1 and the steering swing arm II4 through pins.

[0029] In this embodiment, the tie rod II2 and tie rod III5 are both hinged to the steering swing arm through a pin (tie rod II2 is hinged to the steering swing arm I1 through a pin, and tie rod III5 is hinged to the steering swing arm II4 through a pin), and are hinged to the upper steering knuckle arm on the axle steering knuckle 11 through a pin hole and a pin.

[0030] In this embodiment, the steering cylinder 8 is a single-piston double-piston rod structure, the cylinder barrel is fixed on the axle, and the piston rod is hinged to the side knuckle arms of the two end knuckles 11 through a tie rod. The number of the steering cylinders corresponds to the number of vehicle wheels.

[0031] In this embodiment, one end of the centering cylinder 6 is mounted on a cylinder support on the vehicle frame 10, and the other end is hinged to the steering swing arm II 4 between the two axes.

[0032] In this embodiment, an angle sensor 12 is installed on the car steering knuckle 11 .

[0033] The working principle of the above structure is:

[0034] The steering device of this embodiment is a part of the steering system of a two-way driving vehicle. The two-way driving transport vehicle adopts an electronic hydraulic mechanical steering system, which is mainly composed of a steering oil pump, a power steering gear, an electric proportional reversing valve, a centering battery valve, a steering oil cylinder, a centering oil cylinder, a steering swing arm, a steering tie rod, an angle sensor, etc. The steering mechanism is divided into a front steering mechanism and a rear steering mechanism. The front and rear steering mechanisms are divided and linked through an angle sensor and a controller. The steering mechanism is a steering mechanism composed of an oil cylinder and a tie rod.

[0035] The operator's cab or driver's cab at both ends of the two-way driving transport vehicle can control the steering of the wheels at both ends, and the steering mode is multi-mode steering. It adopts electronic hydraulic compound steering mode, and the vehicle's steering mode is selected by buttons: front axle steering, eight-shaped steering and diagonal mode, etc.

[0036] When the driving mode is the front axle steering mode (such as Figure 8 When the power steering gear at one end is turned, the wheel at the other end is in the middle position and will be locked by the corresponding centering cylinder.

[0037] When the driving mode is eight-shaped steering (such as Figure 6 ) and diagonal mode (as shown Figure 7 When the steering operation is performed, the power steering gear is operated by the steering wheel in the cab to push the front steering group, and the front steering angle signal controls the rear steering group to achieve the vehicle turning in an eight-shaped or diagonal direction. Conversely, the steering operation is performed by the other steering wheel in the cab to operate the power steering gear to push the rear steering group, and the rear steering angle signal controls the front steering group to achieve the vehicle turning in an eight-shaped or diagonal direction.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steering device for a bidirectional driving vehicle, characterized in that: It includes a vehicle frame and a steering mechanism; the steering mechanism is provided with two groups, front and rear, which are respectively arranged at the lower end of both sides of the vehicle frame, and include a steering cylinder, a centering cylinder, a steering swing arm I, a steering swing arm II, a tie rod I, a tie rod II, and a tie rod III; The steering swing arm I is connected to the steering swing arm II and the first axis axle steering knuckle through two longitudinal tie rods, tie rod I and tie rod II; the steering swing arm II is connected to the second axis car steering knuckle through tie rod III; the two ends of the centering cylinder are connected to the steering swing arm II and the frame respectively; the steering cylinder is installed on the axle, and the steering cylinder is connected to the side steering knuckle arms of the steering knuckles at both ends through tie rods.

2. A steering device for a bidirectional driving vehicle according to claim 1, characterized in that: The steering swing arm I is located at the end of the frame, and the steering swing arm I and the steering swing arm II are connected to the frame through the steering swing arm pin seat I and the steering swing arm pin seat II respectively.

3. A steering device for a bidirectional driving vehicle according to claim 1, characterized in that: The pull rod I is located above the pull rod II, and both ends are respectively hinged to the steering swing arm I and the steering swing arm II through pins.

4. The steering device for a bidirectional driving vehicle according to claim 1, characterized in that: The pull rod II and the pull rod III are both hinged to the steering swing arm through a pin shaft, and are hinged to the upper steering knuckle arm on the axle steering knuckle through a pin shaft hole and a pin shaft.

5. The steering device for a bidirectional driving vehicle according to claim 1, characterized in that: The steering oil cylinder is a single-piston double-piston rod structure, the cylinder barrel is fixed on the vehicle axle, and the piston rod is hinged to the side steering knuckle arms of the steering knuckles at both ends through a pull rod.

6. The steering device for a bidirectional driving vehicle according to claim 1, characterized in that: The number of the steering cylinders corresponds to the number of vehicle wheels.

7. The steering device for a bidirectional driving vehicle according to claim 1, characterized in that: One end of the centering oil cylinder is installed on the oil cylinder support on the vehicle frame, and the other end is hinged on the steering swing arm II between the two axis lines.

8. The steering device for a bidirectional driving vehicle according to claim 1, characterized in that: An angle sensor is installed on the car steering knuckle.

Images