A vehicle steering system

Abstract

The utility model discloses an automobile steering system, including steering oil pot, steering oil pump, two position four way reversing valve and first steering group and second steering group, and first steering group includes first steering ware and first steering wheel, and second steering group includes second steering ware and second steering wheel. Two position four way reversing valve is equipped with A mouth, B mouth, P mouth and T mouth, and P mouth is oil inlet, and T mouth is oil return, and first working valve position time P mouth and A mouth are conducted, and T mouth and B mouth are conducted, and second working valve position time P mouth and B mouth are conducted, and T mouth and A mouth are conducted. First steering oil pipe is communicated between first steering ware and A mouth, and second steering oil pipe is communicated between second steering ware and B mouth. Steering oil pot and steering oil pump, steering oil pump and P mouth are communicated through oil inlet pipeline between each other, and oil return pipeline is communicated between T mouth and steering oil pot. Realize anytime selection switching left or right steering to drive vehicle through two position four way reversing valve.

Description

Technical Field

[0001] This utility model relates to the technical field of automobile steering, and more specifically, to an automobile steering system. Background Technology

[0002] The design of a car driver's seat follows the principle of "driver's seat close to the center line of the road" to ensure that the driver can better observe oncoming traffic and road conditions ahead, reducing the risk of collisions when overtaking or passing. Therefore, vehicles that drive on the right have the driver's seat on the left, and vehicles that drive on the left have the driver's seat on the right. For example, vehicles on the road usually drive on the right, so the driver's seat is on the left. While this makes it easier to observe vehicles approaching from the left, it is far less convenient than observing road conditions on the right. For instance, with garbage trucks, because the garbage bins are on the right side of the road, it is inconvenient for the driver in the left-hand seat to observe them, thus affecting operational efficiency and safety. If the driver could sit on the right side during garbage collection, they could simultaneously drive the vehicle and collect garbage from the bins on the right side. Utility Model Content

[0003] The purpose of this invention is to provide a car steering system that allows drivers to switch between left-hand drive and right-hand drive at any time.

[0004] The embodiments of this utility model are achieved through the following technical solutions:

[0005] An automotive steering system includes a steering fluid reservoir, a steering fluid pump, a two-position four-way directional valve, a first steering group, and a second steering group. The first steering group includes a first steering gear and a first steering wheel, and the second steering group includes a second steering gear and a second steering wheel.

[0006] The two-position four-way directional valve is equipped with ports A, B, P, and T. Port P is the oil inlet and port T is the oil return port. In the first working position, ports P and A are connected and ports T and B are connected. In the second working position, ports P and B are connected and ports T and A are connected.

[0007] The first steering gear is connected to port A by a first steering oil pipe, and the second steering gear is connected to port B by a second steering oil pipe.

[0008] The power steering reservoir and the power steering pump are connected by inlet lines, and the power steering pump and the P port are connected by return lines.

[0009] In one embodiment of this utility model, the first steering group is disposed on the left side of the vehicle body, and the second steering group is disposed on the right side of the vehicle body.

[0010] In one embodiment of the present invention, the vehicle steering system further includes a frame, the frame including a first longitudinal beam, a second longitudinal beam, a first crossbeam and a second crossbeam, the first crossbeam and the second crossbeam being fixedly connected between the first longitudinal beam and the second longitudinal beam respectively.

[0011] In one embodiment of this utility model, the first steering gear is fixedly connected to the end of the first longitudinal beam, and the second steering gear is fixedly connected to the end of the second longitudinal beam; the steering oil pump and the two-position four-way reversing valve are fixedly connected to the first crossbeam, and the steering oil reservoir is fixedly connected to the first longitudinal beam.

[0012] In one embodiment of this utility model, a first connecting frame is provided between the steering oil pump and the first crossbeam, and a second connecting frame is provided between the two-position four-way directional valve and the first crossbeam.

[0013] In one embodiment of this utility model, the oil inlet pipeline and the oil return pipeline are distributed along the first crossbeam and the first longitudinal beam.

[0014] In one embodiment of the present invention, a first auxiliary oil pipe is provided between the first steering gear and the steering oil reservoir, and a second auxiliary oil pipe is provided between the second steering gear and the steering oil reservoir.

[0015] In one embodiment of this utility model, the first set of oil pipes is distributed along the first longitudinal beam, and the second set of oil pipes is distributed along the second longitudinal beam and the second transverse beam.

[0016] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0017] By installing a two-position four-way directional valve between the steering pump and the first and second steering gears, the system can quickly switch between left-hand drive and right-hand drive driving positions. At the same time, the two-position four-way directional valve can also open another steering oil pipe while switching the oil inlet line, so that the steering gear can be connected to the T-port for flow control, thus avoiding resistance to the entire steering system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the automotive steering system of this utility model;

[0020] Figure 2 This is a perspective view of the two-position four-way directional valve of this utility model;

[0021] Figure 3 This is a schematic diagram of the two-position four-way directional valve of this utility model.

[0022] Icons: 1-Steering fluid reservoir, 2-Steering fluid pump, 3-Two-position four-way directional control valve, 31-Port A, 32-Port B, 33-Port P, 34-Port T, 41-First steering gear, 42-First steering wheel, 43-Second steering gear, 44-Second steering wheel, 51-First steering oil pipe, 52-Second steering oil pipe, 53-Inlet oil pipe, 54-Return oil pipe, 55-Second auxiliary oil pipe, 61-First longitudinal beam, 62-Second longitudinal beam, 63-First crossbeam, 64-Second crossbeam, 71-First connecting bracket, 72-Second connecting bracket. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] In the description of this utility model, it should be noted that if terms such as "inner" or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please refer to Figures 1-3 A car steering system includes a steering fluid reservoir 1, a steering fluid pump 2, a two-position four-way directional valve 3, and a first steering group and a second steering group. The first steering group includes a first steering gear 41 and a first steering wheel 42, and the second steering group includes a second steering gear 43 and a second steering wheel 44. The steering fluid pump 2 is an electric steering fluid pump.

[0027] Reference Figure 2 and Figure 3The two-position four-way directional control valve 3 is equipped with port A 31, port B 32, port P 33, and port T 34. Port P 33 is the oil inlet, and port T 34 is the oil return port. Ports P 33 and T 34 are located on the same side, while ports A 31 and B 32 are located on the other side. In the first working valve position, ports P 33 and A 31 are connected, and ports T 34 and B 32 are connected. In the second working valve position, ports P 33 and B 32 are connected, and ports T 34 and A 31 are connected. A first steering oil pipe 51 connects the first steering gear 41 to port A 31, and a second steering oil pipe 52 connects the second steering gear 43 to port B 32. The steering oil reservoir 1 is connected to the steering oil pump 2, and the steering oil pump 2 is connected to port P 33 via oil inlet pipes 53. Port T 34 is connected to the steering oil reservoir 1 via a return pipe 54.

[0028] It should be noted that by setting a two-position four-way directional valve 3 between the steering pump 2 and the first steering gear 41 and the second steering gear 43, on the one hand, the rapid switching between the left-hand drive position and the right-hand drive position is realized; on the other hand, while realizing the reversal of the oil inlet pipe 53, the two-position four-way directional valve 3 also opens another steering oil pipe, so that the steering gear is connected to the T port 34 for flow conduction, thus avoiding resistance to the entire steering system.

[0029] Specifically, the two-position four-way directional valve 3 enables rapid switching between the first and second working valve positions, thereby facilitating rapid switching between left and right rudder control from the driver's seat. When switched to the first working valve position, refer to... Figure 3 When the steering pump 2 is switched to the second working valve position, the steering pump 2 is connected to the first steering gear 41 through port P 33, port A 31, and the first steering oil pipe 51, and the driver's seat is in the left-hand drive position. When switched to the second working valve position, the steering pump 2 is connected to the second steering gear 43 through port P 33, port B 32, and the second steering oil pipe 52, and the driver's seat is in the right-hand drive position.

[0030] For example, when port P33 and port B32 are connected, high-pressure oil acts on the second steering gear 43, and the second steering gear 43 works. At this time, port T34 and port A31 are connected. When the second steering gear 43 rotates and causes the first steering gear 41 to rotate through the linkage, the first steering gear 41 receives flow compensation through port A31, forming liquid flow and avoiding the formation of cavities or oil accumulation inside, which would create resistance to the entire steering system.

[0031] In this embodiment, the first steering assembly is located on the left side of the vehicle body, and the second steering assembly is located on the right side of the vehicle body. The vehicle steering system also includes a frame, which comprises a first longitudinal beam 61, a second longitudinal beam 62, a first crossbeam 63, and a second crossbeam 64. The first crossbeam 63 and the second crossbeam 64 are respectively fixedly connected between the first longitudinal beam 61 and the second longitudinal beam 62. A first steering gear 41 is fixedly connected to the end of the first longitudinal beam 61, and a second steering gear 43 is fixedly connected to the end of the second longitudinal beam 62. The steering pump 2 and the two-position four-way directional valve 3 are respectively fixedly connected to the first crossbeam 63, and the steering fluid reservoir 1 is fixedly connected to the first longitudinal beam 61. A first connecting bracket 71 is disposed between the steering pump 2 and the first crossbeam 63, and a second connecting bracket 72 is disposed between the two-position four-way directional valve 3 and the first crossbeam 63. The first connecting bracket 71 facilitates the installation of the steering pump 2, avoiding the need for additional drilling on the frame to install the steering pump 2, thereby preventing damage to the structural strength of the frame; the second connecting bracket 72 serves the same purpose.

[0032] In this embodiment, the inlet oil line 53 and the return oil line 54 are distributed along the first crossbeam 63 and the first longitudinal beam 61. A first auxiliary oil line is arranged between the first steering gear 41 and the steering oil reservoir 1, and a second auxiliary oil line 55 is arranged between the second steering gear 43 and the steering oil reservoir 1. The first auxiliary oil line is distributed along the first longitudinal beam 61, and the second auxiliary oil line 55 is distributed along the second longitudinal beam 62 and the second crossbeam 64; thus achieving a reasonable arrangement of high-pressure oil lines. (Refer to...) Figure 1 The high-pressure oil pipes are arranged along the frame and are detachably connected to the frame by pipe clamps.

[0033] It should be noted that this vehicle steering system is equipped with a left / right drive mode switching button, or a gear shift lever, and can also be controlled on the operation screen, especially when this vehicle steering system is used in pure electric commercial vehicles.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A car steering system, characterized in that, It includes a power steering reservoir, a power steering pump, a two-position four-way directional valve, a first steering group and a second steering group. The first steering group includes a first steering gear and a first steering wheel, and the second steering group includes a second steering gear and a second steering wheel. This two-position four-way directional valve is equipped with port A, port B, port P and port T. Port P is the oil inlet and port T is the oil return. In the first working position, port P and port A are connected and port T and port B are connected. In the second working position, port P and port B are connected and port T and port A are connected. The first steering gear is connected to port A by a first steering oil pipe, and the second steering gear is connected to port B by a second steering oil pipe. The power steering reservoir and the power steering pump are connected by inlet lines, and the power steering pump and the P port are connected by return lines.

2. The automotive steering system according to claim 1, characterized in that, The first steering group is located on the left side of the vehicle body, and the second steering group is located on the right side of the vehicle body.

3. The automotive steering system according to claim 2, characterized in that, It also includes a frame, which includes a first longitudinal beam, a second longitudinal beam, a first crossbeam, and a second crossbeam, with the first crossbeam and the second crossbeam respectively fixedly connected between the first longitudinal beam and the second longitudinal beam.

4. The automotive steering system according to claim 3, characterized in that, The first steering gear is fixedly connected to the end of the first longitudinal beam, and the second steering gear is fixedly connected to the end of the second longitudinal beam; the steering oil pump and the two-position four-way reversing valve are fixedly connected to the first crossbeam, and the steering oil reservoir is fixedly connected to the first longitudinal beam.

5. The automotive steering system according to claim 4, characterized in that, A first connecting bracket is provided between the steering pump and the first crossbeam, and a second connecting bracket is provided between the two-position four-way directional valve and the first crossbeam.

6. The automotive steering system according to claim 5, characterized in that, The oil inlet pipeline and the oil return pipeline are distributed along the first crossbeam and the first longitudinal beam.

7. The automotive steering system according to claim 6, characterized in that, A first auxiliary oil pipe is provided between the first steering gear and the steering fluid reservoir, and a second auxiliary oil pipe is provided between the second steering gear and the steering fluid reservoir.

8. The automotive steering system according to claim 7, characterized in that, The first set of oil pipes is distributed along the first longitudinal beam, and the second set of oil pipes is distributed along the second longitudinal beam and the second transverse beam.

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