An emergency steering method, accumulator sealing device and steering system

Abstract

The application relates to the technical field of steering, in particular to an emergency steering method, an energy accumulator sealing device and a steering system. The energy accumulator sealing device comprises a supporting component, an energy accumulator shell, a pipeline arranged on the energy accumulator shell, a valve arranged on the pipeline and an air bag arranged on the pipeline; a closing component, a sealing assembly arranged on the energy accumulator shell, a transmission assembly arranged on the sealing assembly and an anti-dropping assembly arranged on the transmission assembly; and a pressing component, a steering assembly arranged on the anti-dropping assembly and an extrusion assembly arranged on the steering assembly. The energy accumulator sealing device can guarantee stable sealing and good sealing effect.

Description

Technical Field

[0001] This invention relates to the field of steering technology, and in particular to an emergency steering method, an accumulator sealing device, and a steering system. Background Technology

[0002] The existing steering system mainly consists of a hydraulic oil pump, pipelines, power steering cylinder, hydraulic steering valve assembly, sensors, and controller. When in use, the sensor senses the signal and transmits it to the controller, which then controls the opening of the hydraulic steering valve assembly. The hydraulic oil pump then pumps hydraulic oil into the power steering cylinder, causing the cylinder to extend and retract, thereby achieving the steering effect.

[0003] In order to increase the operating speed, some companies have replaced the pressurization process of the hydraulic oil pump with accumulator compression. When using this method, the internal pressure of the accumulator is high when it is being charged, and the existing accumulators are generally sealed with O-rings. After a period of use, the impact of air pressure can easily cause the O-rings to loosen, affecting the sealing effect. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problem that air pressure impacts the O-ring seal in the above or existing technologies, which can easily cause the O-ring seal to loosen, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an emergency steering method.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including,

[0008] During an emergency turn, the steering controller receives a steering command from the vehicle and sends a signal to the hydraulic steering valve assembly. The hydraulic steering valve assembly controls the valve leading to the accumulator to open, releasing the stored nitrogen gas from the accumulator, which then pushes the hydraulic oil stored in the accumulator to a sealing device. The hydraulic oil stored in the accumulator pushes the steering cylinder or steering gear of the wide-body dump truck to the corresponding position, achieving emergency steering. After the emergency turn is completed, the hydraulic steering valve assembly receives a command to open the oil circuit valve leading to the accumulator. After the valve opens, the hydraulic oil flows back, allowing the accumulator to refill with oil for the next emergency turn.

[0009] As a preferred embodiment of the emergency steering method of the present invention, the hydraulic steering valve group controls multiple valve groups, and the hydraulic oil supply and return are controlled by different valve groups.

[0010] As a preferred embodiment of the emergency steering method of the present invention, a hydraulic oil tank is also provided on one side of the hydraulic steering valve group, and the hydraulic oil tank is replenished in time by controlling the hydraulic steering valve group when the hydraulic oil leaks.

[0011] The present invention also provides an accumulator sealing device, comprising: a support component including an accumulator housing, a pipe disposed on the accumulator housing, a valve disposed on the pipe, and an airbag disposed on the pipe; a sealing component including a sealing assembly disposed on the accumulator housing, a transmission assembly disposed on the sealing assembly, and an anti-detachment assembly disposed on the transmission assembly; and a pressing component including a steering assembly disposed on the anti-detachment assembly and a compression assembly disposed on the steering assembly.

[0012] As a preferred embodiment of the accumulator sealing device of the present invention, the sealing assembly includes an annular groove disposed on the accumulator housing, a first sealing ring disposed on the annular groove, a second sealing ring disposed on the first sealing ring, and an inner groove disposed on the second sealing ring.

[0013] In a preferred embodiment of the accumulator sealing device of the present invention, the transmission assembly includes a mounting groove disposed on a first sealing ring, a first ring disposed on the mounting groove, a first spring disposed on the first ring, a push rod disposed on the first ring, and a small ball disposed on the push rod.

[0014] As a preferred embodiment of the accumulator sealing device of the present invention, the anti-detachment component includes a limiting groove disposed on the first sealing ring, a limiting rod disposed on the limiting groove, a second ring disposed on the limiting rod, a notch disposed on the first ring and the second ring, and a second spring disposed on the second ring.

[0015] As a preferred embodiment of the accumulator sealing device of the present invention, the steering assembly includes an L-shaped groove disposed on a limiting groove, an L-shaped plate disposed on the L-shaped groove, an L-shaped hook disposed on the L-shaped plate, a receiving groove disposed on the limiting groove, a rotating shaft disposed on the receiving groove, a torsion spring disposed on the rotating shaft, and a rotating block disposed on the torsion spring.

[0016] In a preferred embodiment of the accumulator sealing device of the present invention, the extrusion assembly includes a connection port disposed on the receiving groove, a transmission block disposed within the connection port, and an arc-shaped plate disposed on the transmission block.

[0017] The present invention also provides a steering system, comprising: an energy storage module for providing power for steering pump fluid; a control module for controlling the on / off of oil lines; a booster module for increasing the pressure during pumping; and a steering module for steering.

[0018] The beneficial effects of this emergency steering method, accumulator sealing device, and steering system are as follows: By changing the shape of the sealing ring, it can be squeezed more tightly with the pipeline when under pressure, thereby ensuring the sealing effect. At the same time, while the sealing ring is being squeezed, the transmission can also drive the limit rod to insert into the limit groove, ensuring the stability of the sealing ring position and making the sealing effect better. Furthermore, when the sealing ring is deformed, the rotation can also cause the arc plate to squeeze the sealing ring, further increasing the fit between the sealing ring and the pipeline, making the sealing effect even better. This solves the problem that air pressure impact on O-ring seals can easily cause the O-ring seals to loosen, achieving a stable and effective seal. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0020] Figure 1 This is a schematic diagram of the overall sealing device for the accumulator.

[0021] Figure 2 This is a first cross-sectional view of the accumulator sealing device.

[0022] Figure 3 This is a front view of the second sectional structure of the accumulator sealing device.

[0023] Figure 4 for Figure 3 An enlarged schematic diagram of the structure at point A.

[0024] Figure 5 This is a schematic diagram of the external structure of the clamping component of the accumulator sealing device.

[0025] Figure 6 This is a schematic diagram of the external structure of the first sealing ring of the accumulator sealing device.

[0026] Figure 7 This is a schematic diagram of the external structure of the steering system.

[0027] Figure 8 This is a system block diagram of the steering system. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0031] Example 1

[0032] This is the first embodiment of the present invention, which provides an emergency steering method, comprising: when performing an emergency steering, the steering controller receives a vehicle steering command and sends a signal to the hydraulic steering valve assembly; the hydraulic steering valve assembly controls the valve leading to the accumulator to open, the accumulator releases stored nitrogen gas, pushes the hydraulic oil stored in the accumulator, and the sealing device M seals the accumulator; the hydraulic oil stored in the accumulator pushes the steering cylinder or steering gear of the wide-body dump truck to the corresponding position to achieve emergency steering; after the emergency steering is completed, the hydraulic steering valve assembly receives a command to control the oil circuit valve leading to the accumulator to open; after the valve opens, the hydraulic oil flows back to refill the accumulator for use in the next emergency steering.

[0033] Specifically, the hydraulic steering valve assembly controls multiple valve groups, with different valve groups controlling the hydraulic oil supply and return. A hydraulic oil tank is also installed on one side of the hydraulic steering valve assembly. In case of hydraulic oil leakage, the hydraulic steering valve assembly controls the hydraulic oil tank to replenish it promptly. When the vehicle needs to turn in an emergency, the controller issues a command. Upon receiving the command, the hydraulic steering valve assembly controls the valve leading to the accumulator to open. At this time, the hydraulic oil in the accumulator is forced out by the nitrogen gas stored in the accumulator and connected to the reversing valve assembly via the high-pressure steering oil pipe. The steering hydraulic valve assembly distributes its work according to the received controller signal. The valve assembly outlet is connected to the power steering cylinder via a high-pressure oil pipe, and emergency steering is performed according to the controller signal.

[0034] Example 2

[0035] Reference Figures 1-4This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an accumulator sealing device, which solves the problem that the sealing ring is prone to loosening under pressure, affecting the sealing effect. It includes: a support component 100, including an accumulator housing 101, a pipe 102 disposed on the accumulator housing 101, a valve 103 disposed on the pipe 102, and an airbag 104 disposed on the pipe 102; a sealing component 200, including a sealing assembly 201 disposed on the accumulator housing 101, a transmission assembly 202 disposed on the sealing assembly 201, and an anti-detachment assembly 203 disposed on the transmission assembly 202; and a pressing component 300, including a steering assembly 301 disposed on the anti-detachment assembly 203, and a compression assembly 302 disposed on the steering assembly 301.

[0036] Specifically, two pipes 102 are provided, with both ends of the two pipes 102 penetrating the outer shell of the accumulator. A valve 103 is provided on the pipe 102, and an air bladder 104 is provided inside the outer shell 101 of the accumulator. Hydraulic oil is provided at the lower end of the outer shell 101. In use, air is pumped to the air bladder 104 through the pipe 102, causing the air bladder 104 to inflate. Guided by the outer shell 101 of the accumulator, the air bladder 104 deforms towards the hydraulic oil, pumping the hydraulic oil out from the lower pipe 102. The valve 103 on the lower pipe 102 is a pressure valve, which will only open when there is a certain pressure.

[0037] Furthermore, the sealing assembly 201 includes an annular groove 201a disposed on the accumulator housing 101, a first sealing ring 201b disposed on the annular groove 201a, a second sealing ring 201c disposed on the first sealing ring 201b, and an inner groove 201d disposed on the second sealing ring 201c. The transmission assembly 202 includes a mounting groove 202a disposed on the first sealing ring 201b, a first circular ring 202b disposed on the mounting groove 202a, and a first... The spring 202c, the push rod 202d disposed on the first ring 202b, and the ball 202e disposed on the push rod 202d; the anti-detachment assembly 203 includes a limiting groove 203a disposed on the first sealing ring 201b, a limiting rod 203b disposed on the limiting groove 203a, a second ring 203c disposed on the limiting rod 203b, a notch 203d disposed on the first ring 202b and the second ring 203c, and a second spring 203e disposed on the second ring 203c.

[0038] It should be noted that the first sealing ring 201b is fixed inside the annular groove 201a, and the inner wall of the first sealing ring 201b abuts against the inner wall of the pipe 102. The annular groove 201a is T-shaped to prevent the first sealing ring 201b from detaching from it. The second sealing ring 201c is fixedly connected to the first sealing ring 201b. The lower end of the second sealing ring 201c is arc-shaped, and its arc-shaped sidewall abuts against the pipe 102. The first ring 202b is slidably connected to the inner wall of the mounting groove 202a. The first ring 202b is connected via... The first spring 202c provides support. The push rod 202d passes through the first sealing ring 201b and is slidably connected to the first sealing ring 201b. The lower end of the push rod 202d is fixedly connected to the ball 202e. The limiting groove 203a passes through the first sealing ring 201b and extends into the wall of the accumulator housing 101. The limiting rod 203b is slidably connected to the limiting groove 203a. The second ring 203c is fixedly connected to the side wall of the limiting rod 203b. The second ring 203c is elastically connected to the inner wall of the mounting groove 202a through the second spring 203e.

[0039] During use, when inflated, the airbag 104 expands and compresses the gas inside the accumulator housing 101, increasing the pressure inside the accumulator housing 101. This pressure compresses the second sealing ring 201c, causing the inner groove 201d of the second sealing ring 201c to move towards the first sealing ring 201b. At this time, the lower end of the second sealing ring 201c presses more tightly against the pipe 102, achieving a complete seal. As the second sealing ring 201c moves from its inner groove 201d towards the first sealing ring 201b, it pushes the small ball 202e towards... The upward movement causes the push rod 202d to move upward, which in turn causes the first ring 202b to move upward. The first spring 202c extends and pushes the outer end of the second ring 203c to move, causing the limiting rod 203b to move and the second spring 203e to compress. When the limiting rod 203b enters the limiting groove 203a, it can limit the movement between the first sealing ring 201b and the accumulator housing 101, preventing the first sealing ring 201b from loosening up and down, and thus preventing the second sealing ring 201c from loosening up and down, resulting in a better sealing effect.

[0040] In summary, by utilizing the deformation of the second sealing ring 201c, the contact between the second sealing ring 201c and the pipe 102 becomes tighter, thereby increasing the sealing effect. Furthermore, when the second sealing ring 201c deforms, it can also push the small ball 202e, which in turn drives the limiting rod 203b to insert into the limiting groove 203a, thereby limiting the first sealing ring 201b and ensuring the stability of the second sealing ring 201c. This further increases the stability and sealing effect of the second sealing ring 201c.

[0041] Example 3

[0042] Reference Figures 4-6 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a steering assembly 301, which solves the problem of how to further increase the stability and sealing performance of the second sealing ring 201c. It includes an L-shaped groove 301a disposed on the limiting groove 203a, an L-shaped plate 301b disposed on the L-shaped groove 301a, an L-shaped hook 301c disposed on the L-shaped plate 301b, a receiving groove 301d disposed on the limiting groove 203a, a rotating shaft 301e disposed on the receiving groove 301d, a torsion spring 301f disposed on the rotating shaft 301e, and a rotating block 301g disposed on the torsion spring 301f. The extrusion assembly 302 includes a connecting port 302a disposed on the receiving groove 301d, a transmission block 302b disposed in the connecting port 302a, and an arc-shaped plate 302c disposed on the transmission block 302b.

[0043] Specifically, the L-shaped groove 301a is connected to the limiting groove 203a, the L-shaped plate 301b is slidably connected to the L-shaped groove 301a, the vertical width of the L-shaped groove 301a is greater than the vertical width of the L-shaped plate 301b, the L-shaped hook 301c is fixedly connected to the L-shaped plate 301b, the receiving groove 301d is connected to the L-shaped groove 301a, the rotating shaft 301e is rotatably connected to the receiving groove 301d, the torsion spring 301f is set on the rotating shaft 301e, the rotating block 301g is fixedly connected to the rotating shaft 301e, and the connection port 30... 2a penetrates the receiving groove 301d, and the transmission block 302b penetrates the receiving groove 301d and is slidably connected to the inner wall of the receiving groove 301d. The arc plate 302c is fixedly connected to the transmission block 302b. Multiple small balls 202e, push rods 202d, limit rods 203b, L-shaped grooves 301a, L-shaped plates 301b, rotating blocks 301g, and arc plates 302c are provided. Multiple arc plates 302c abut against the side wall of the second sealing ring 201c, which can press the lower end of the second sealing ring 201c.

[0044] When in use, when the limiting rod 203b enters the limiting groove 203a, it pushes the L-shaped plate 301b to move outward. At this time, the L-shaped plate 301b slides in the L-groove and drives the L-shaped hook 301c to move, causing the rotating block 301g to deflect clockwise. This causes the upper end of the rotating block 301g to move to the right and the lower end to move to the left. At the same time, the torsion spring 301f gains elasticity. When the lower end of the rotating block 301g moves to the left, it can drive the transmission block 302b to move, so that the arc plate 302c abuts against the side wall of the second sealing ring 201c. This makes the lower end of the second sealing ring 201c fit more tightly with the pipe 102, further increasing the overall sealing performance and preventing the arc edge of the second sealing ring 201c from detaching from the pipe 102.

[0045] In summary, when the limit rod 203b moves, it can drive the L-shaped plate 301b to move, so that the L-shaped hook 301c pulls the rotating block 301g, and through transmission, drives the arc plate 302c to press the second sealing ring 201c, so that the lower end of the second sealing ring 201c fits more tightly with the pipe 102, further increasing the overall sealing performance.

[0046] Example 4

[0047] Reference Figures 7-8 This is the fourth embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a steering system, which includes: an energy storage module 400, which provides power for the steering pump fluid; a control module 500, which controls the on / off of the oil pipeline 102; a pressure boosting module 600, which increases the pressure during pumping; and a steering module 700, which performs steering.

[0048] Furthermore, the energy storage module 400 includes an accumulator housing 101, a pipe 102, an air bladder 104, hydraulic oil, a valve 103, a sealing component 200, and a clamping component 300, and also includes a base at the lower end of the accumulator housing 101. The control module 500 includes a hydraulic steering valve assembly, a pipe 102, a mounting bracket, and a hydraulic oil tank. The booster module 600 includes a prior art steering pump and a pump base. In use, the steering pump is connected to the pipe 102 through which the accumulator housing 101 pumps out hydraulic fluid. The steering module 700 includes a prior art power steering cylinder. In use, the steering process is achieved by pumping pressurized hydraulic oil into the power steering cylinder and by extending and retracting the power steering cylinder.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A accumulator sealing device, characterized in that: include, The support component (100) includes an accumulator housing (101), a pipe (102) disposed on the accumulator housing (101), a valve (103) disposed on the pipe (102), and an airbag (104) disposed on the pipe (102). The sealing component (200) includes a sealing assembly (201) disposed on the accumulator housing (101), a transmission assembly (202) disposed on the sealing assembly (201), and an anti-detachment assembly (203) disposed on the transmission assembly (202). The clamping component (300) includes a steering component (301) disposed on the anti-detachment component (203) and a squeezing component (302) disposed on the steering component (301). The sealing assembly (201) includes an annular groove (201a) disposed on the accumulator housing (101), a first sealing ring (201b) disposed on the annular groove (201a), a second sealing ring (201c) disposed on the first sealing ring (201b), and an inner groove (201d) disposed on the second sealing ring (201c). The transmission assembly (202) includes a mounting groove (202a) disposed on a first sealing ring (201b), a first ring (202b) disposed on the mounting groove (202a), a first spring (202c) disposed on the first ring (202b), a push rod (202d) disposed on the first ring (202b), and a small ball (202e) disposed on the push rod (202d).

2. The accumulator sealing device as described in claim 1, characterized in that: The anti-detachment component (203) includes a limiting groove (203a) disposed on a first sealing ring (201b), a limiting rod (203b) disposed on the limiting groove (203a), a second ring (203c) disposed on the limiting rod (203b), a notch (203d) disposed on the first ring (202b) and the second ring (203c), and a second spring (203e) disposed on the second ring (203c).

3. The accumulator sealing device as described in claim 2, characterized in that: The steering assembly (301) includes an L-shaped groove (301a) disposed on a limiting groove (203a), an L-shaped plate (301b) disposed on the L-shaped groove (301a), an L-shaped hook (301c) disposed on the L-shaped plate (301b), a receiving groove (301d) disposed on the limiting groove (203a), a rotating shaft (301e) disposed on the receiving groove (301d), a torsion spring (301f) disposed on the rotating shaft (301e), and a rotating block (301g) disposed on the torsion spring (301f).

4. The accumulator sealing device as described in claim 3, characterized in that: The extrusion assembly (302) includes a connection port (302a) disposed on the receiving groove (301d), a transmission block (302b) disposed in the connection port (302a), and an arc plate (302c) disposed on the transmission block (302b).

5. An emergency steering method, comprising the accumulator sealing device of claim 4, wherein... When making an emergency turn, the steering controller receives the vehicle's steering command and sends a signal to the hydraulic steering valve assembly. The hydraulic steering valve group controls the valve leading to the accumulator to open, the accumulator releases the stored nitrogen gas, pushes the hydraulic oil stored in the accumulator, and the sealing device (M) seals it. The hydraulic oil stored in the accumulator pushes the steering cylinder or steering gear of the wide-body dump truck to the corresponding position to achieve emergency steering; After the emergency steering is completed, the hydraulic steering valve assembly receives a command to open the oil circuit valve leading to the accumulator; After the valve is opened, the hydraulic oil flows back, causing the accumulator to refill with oil for use in the next emergency steering.

6. The emergency steering method as described in claim 5, characterized in that: The hydraulic steering valve group controls multiple valve groups, with different valve groups controlling the hydraulic oil supply and return.

7. The emergency steering method as described in claim 6, characterized in that: A hydraulic oil tank is also installed on one side of the hydraulic steering valve assembly. In case of hydraulic oil leakage, the hydraulic steering valve assembly controls the hydraulic oil tank to replenish it in time.

8. A steering system comprising the accumulator sealing device of claim 4, wherein the accumulator includes, An energy storage module (400) provides power for the steering pump fluid; The control module (500) controls the on / off state of the oil pipeline; A booster module (600) is used to increase the pressure during pumping; Steering module (700), through which steering is performed.

Images