Hydraulic oil one-way transmission mechanism, steering gear and fuel vehicle

Abstract

The utility model discloses a hydraulic oil one-way transmission mechanism, a steering gear and a fuel vehicle, and belongs to the technical field of hydraulic oil transmission mechanisms. The hydraulic oil one-way transmission mechanism comprises a shell and a movable diaphragm arranged in the shell, and the shell comprises a liquid inlet and a liquid outlet; a one-way transmission channel for hydraulic oil to be transmitted from the liquid inlet to the liquid outlet is jointly defined by the movable diaphragm and the shell, and when the hydraulic oil enters the one-way transmission channel from the liquid outlet, the movable diaphragm deforms under the pressure effect of the hydraulic oil. And therefore, the one-way transmission channel is blocked by abutting against the shell. According to the hydraulic oil one-way transmission mechanism, automation and precision of closing of the one-way transmission channel are achieved, normal transmission of hydraulic oil from the liquid inlet to the liquid outlet is met, backflow of the hydraulic oil can be effectively prevented, and the structural design of the hydraulic oil one-way transmission mechanism is optimized.

Description

Technical Field

[0001] The present application belongs to the technical field of hydraulic oil transmission mechanisms, and specifically relates to a hydraulic oil one-way transmission mechanism, a steering gear and a fuel vehicle. Background Art

[0002] The steering system of a car affects the driving safety of the whole vehicle, and also has a great impact on the driving and handling stability of the whole vehicle. The steering system is in close contact with the driver, and the handling stability of the steering system largely determines the performance limit of a car and is the core performance of the whole vehicle.

[0003] When the steering gear is working, the oil pump transports hydraulic oil into the steering gear through the oil channel. The hydraulic oil pushes the rotor inside the steering gear to rotate with the steering wheel. However, due to driving bumps or other factors, the hydraulic oil in the steering gear may reverse from the oil channel back to the oil pump, causing steering wheel shaking, vehicle swaying, etc. When the vehicle speed is high, it may also make it difficult to control the steering wheel, affecting the driving quality. Utility Model Content

[0004] The present application provides a hydraulic oil one-way transmission mechanism, a steering gear and a fuel vehicle to solve the technical problem that the hydraulic oil in the traditional steering gear easily flows back to the oil pump.

[0005] The technical solution adopted in this application is:

[0006] A hydraulic oil one-way transmission mechanism comprises a shell and a movable diaphragm arranged inside the shell, the shell comprises a liquid inlet and a liquid outlet, the movable diaphragm and the shell together form a one-way transmission channel for the hydraulic oil to be transmitted from the liquid inlet to the liquid outlet, when the hydraulic oil enters the one-way transmission channel from the liquid outlet, the movable diaphragm is deformed by the pressure of the hydraulic oil, thereby abutting against the shell to block the one-way transmission channel.

[0007] The hydraulic oil one-way transmission mechanism described in this application also includes the following additional technical features:

[0008] It also includes an elastic movable part located inside the shell, and the elastic movable part can be deformed toward the movable diaphragm under the action of hydraulic oil pressure to make the elastic movable part abut against the shell.

[0009] The elastic movable part includes a plurality of springs arranged at intervals in the one-way transmission channel, and a flow gap for hydraulic oil to pass through is formed between two adjacent springs and between at least part of the springs and the housing.

[0010] The shell comprises a top plate and a bottom plate, and the movable diaphragm is respectively in contact with the top plate and the bottom plate and is installed inside the shell by means of interference fit.

[0011] The one-way transmission channel includes a first transmission channel and a second transmission channel, and the first transmission channel and the second transmission channel share the same liquid inlet and the same liquid outlet.

[0012] The movable diaphragm is made of rubber material.

[0013] The present application also provides a steering gear, comprising a housing, wherein a high-pressure oil passage is provided inside the housing for hydraulic oil to enter, and the hydraulic oil one-way transmission mechanism as described above, wherein the hydraulic oil one-way transmission mechanism is installed in the high-pressure oil passage.

[0014] The present application also provides a fuel vehicle, comprising the steering gear as described above.

[0015] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0016] 1. The hydraulic oil one-way transmission mechanism of the present application includes a shell and a movable diaphragm, the movable diaphragm cooperates with the shell to form a one-way transmission channel for the hydraulic oil to pass through in one direction, and the hydraulic oil can only pass through the one-way transmission channel in a single direction. When the hydraulic oil enters the hydraulic oil one-way transmission mechanism from the outlet, the movable diaphragm will be deformed under the pressure of the hydraulic oil and abut against the shell to block the one-way transmission channel, so that the hydraulic oil cannot flow into the inlet through the one-way transmission channel, thereby preventing the hydraulic oil from flowing back, and realizing the one-way transmission of the hydraulic oil from the inlet to the outlet; the movable diaphragm can complete the blocking of the one-way transmission channel under the pressure of the hydraulic oil, eliminating the need for a separate driving part for driving the movable diaphragm to move, and the one-way transmission channel will be blocked only when the hydraulic oil flows back from the outlet, thereby realizing the automation and precision of the one-way transmission channel closure, that is, satisfying the normal transmission of the hydraulic oil from the inlet to the outlet, and can effectively prevent the backflow of the hydraulic oil, thereby optimizing the structural design of the hydraulic oil one-way transmission mechanism.

[0017] 2. As a preferred embodiment of the present application, an elastic movable part is provided, when the hydraulic oil enters the hydraulic oil one-way transmission mechanism from the liquid inlet, the elastic movable part is deformed toward the movable diaphragm due to the pressure of the hydraulic oil, and exerts pressure on the movable diaphragm to assist the movable diaphragm to press against the shell, that is, the elastic movable part plays the function of assisting the movable diaphragm to move toward the shell, and when the hydraulic oil flows in from the liquid outlet, the hydraulic oil will first press against the elastic movable part, and the elastic movable part can be deformed toward the movable diaphragm before the hydraulic oil comes into contact with the movable diaphragm. In this way, when the hydraulic oil comes into contact with the movable diaphragm, the elastic movable part can assist the hydraulic oil to quickly push the movable diaphragm The diaphragm is in contact with the shell, which effectively reduces the probability that part of the hydraulic oil will flow out from the outlet before the one-way transmission channel is blocked due to the slow blocking of the one-way transmission channel, which helps to improve the sealing efficiency of the hydraulic oil one-way transmission mechanism for the reverse flow of hydraulic oil; in addition, when the hydraulic oil flows in from the outlet at a faster speed, after colliding with the elastic movable part, part of the kinetic potential energy of the hydraulic oil is converted into the elastic potential energy required for the elastic deformation of the elastic movable part, which slows down the travel speed of the hydraulic oil, thereby reducing the probability that the hydraulic oil with a high travel speed enters the gap between the movable diaphragm and the shell before the movable diaphragm is completely in contact with the shell, further improving the interception efficiency of the one-way transmission channel for the hydraulic oil flowing in from the outlet.

[0018] 3. As a preferred embodiment of the present application, the elastic movable part includes a plurality of springs arranged at intervals in the one-way transmission channel, and a flow gap for the hydraulic oil to pass through is formed between two adjacent springs and between at least part of the springs and the housing. By setting a plurality of springs, when the hydraulic oil flows in from the liquid outlet, at least part of the plurality of springs can be deformed in the direction of the movable diaphragm under the action of the hydraulic oil pressure, thereby increasing the probability of the springs contacting the hydraulic oil. When the hydraulic oil flowing in from the liquid outlet is small, the probability of the hydraulic oil not contacting the spring due to the small amount of hydraulic oil is reduced, thereby effectively improving the pushing effect of the elastic movable part on the movable diaphragm. In addition, when the hydraulic oil flows from the liquid inlet and the one-way transmission channel to the liquid outlet, the movable diaphragm will be deformed in the direction of the elastic movable part under the pushing action of the hydraulic oil. By setting the flow gap between each spring and between the spring and the housing, a movement channel is provided for the hydraulic oil, thereby ensuring that the hydraulic oil can flow smoothly from the liquid inlet to the liquid outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 A cross-sectional view of a one-way transmission mechanism of hydraulic oil according to an embodiment of the present application Figure 1 ;

[0021] Figure 2 A cross-sectional view of a one-way transmission mechanism of hydraulic oil according to an embodiment of the present application Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of a steering gear according to an embodiment of the present application.

[0023] in:

[0024] 1 housing, 11 liquid inlet, 12 liquid outlet;

[0025] 2 movable diaphragm;

[0026] 3 unidirectional transmission channel, 31 first transmission channel, 32 second transmission channel;

[0027] 4 elastic movable parts;

[0028] 5. Current clearance;

[0029] 6. Steering gear;

[0030] 7 housing;

[0031] 8 High-pressure oil channel

[0032] 9. Hydraulic oil one-way transmission mechanism. DETAILED DESCRIPTION

[0033] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0035] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0038] like Figure 1 , Figure 2 As shown, a hydraulic oil one-way transmission mechanism includes a shell 1 and an active diaphragm 2 arranged inside the shell 1, the shell 1 includes a liquid inlet 11 and a liquid outlet 12, the active diaphragm 2 and the shell 1 together form a one-way transmission channel 3 for the hydraulic oil to be transmitted from the liquid inlet 11 to the liquid outlet 12, when the hydraulic oil enters the one-way transmission channel 3 from the liquid outlet 12, the active diaphragm 2 is deformed by the hydraulic oil pressure, thereby abutting against the shell 1 to block the one-way transmission channel 3.

[0039] The hydraulic oil one-way transmission mechanism of the present application includes a housing 1 and an active diaphragm 2. The active diaphragm 2 cooperates with the housing 1 to form a one-way transmission channel 3 for one-way passage of hydraulic oil. The hydraulic oil can only pass through the one-way transmission channel 3 in a single direction. When the hydraulic oil enters the hydraulic oil one-way transmission mechanism from the outlet 12, the active diaphragm 2 will deform under the pressure of the hydraulic oil and abut against the housing 1 and block the one-way transmission channel 3, so that the hydraulic oil cannot flow into the inlet 11 through the one-way transmission channel 3, thereby preventing the hydraulic oil from flowing back and realizing the hydraulic oil from the inlet 11. One-way transmission to the liquid outlet 12; the movable diaphragm 2 can complete the blocking of the one-way transmission channel 3 under the pressure of the hydraulic oil, eliminating the need for a separate driving component for driving the movable diaphragm 2 to move, and the one-way transmission channel 3 will only be blocked when the hydraulic oil flows back from the liquid outlet 12, thereby realizing the automation and precision of the closure of the one-way transmission channel 3, which satisfies the normal transmission of the hydraulic oil from the liquid inlet 11 to the liquid outlet 12, and can effectively prevent the backflow of the hydraulic oil, thereby optimizing the structural design of the hydraulic oil one-way transmission mechanism.

[0040] Specifically, Figure 2 The middle arrow indicates the movement direction of the hydraulic oil in the one-way transmission channel 3.

[0041] As a preferred implementation of the present application, Figure 1 As shown, it also includes an elastic movable member 4 located inside the housing 1 , and the elastic movable member 4 can be deformed toward the movable diaphragm 2 under the action of hydraulic oil pressure to make the elastic movable member 4 abut against the housing 1 .

[0042] By providing the elastic movable part 4, when the hydraulic oil enters the hydraulic oil one-way transmission mechanism from the liquid inlet 11, the elastic movable part 4 is deformed toward the movable diaphragm 2 by the pressure of the hydraulic oil, and exerts pressure on the movable diaphragm 2 to assist the movable diaphragm 2 to abut against the housing 1, that is, the elastic movable part 4 plays a function of assisting the movable diaphragm 2 to move toward the housing 1. When the hydraulic oil flows in from the liquid outlet 12, the hydraulic oil will first abut against the elastic movable part 4. The elastic movable part 4 can be deformed toward the movable diaphragm 2 before the hydraulic oil comes into contact with the movable diaphragm 2. In this way, when the hydraulic oil comes into contact with the movable diaphragm 2, the elastic movable part 4 can assist the hydraulic oil to quickly push the movable diaphragm 2 to abut against the housing 1. The invention effectively reduces the probability that part of the hydraulic oil will flow out from the liquid outlet 12 before the one-way transmission channel 3 is completely blocked due to the slow blocking speed of the one-way transmission channel 3, which helps to improve the sealing efficiency of the hydraulic oil one-way transmission mechanism for the reverse flow of hydraulic oil; in addition, when the hydraulic oil flows in from the liquid outlet 12 at a faster speed, after colliding with the elastic movable part 4, part of the dynamic potential energy of the hydraulic oil is converted into the elastic potential energy required for the elastic deformation of the elastic movable part 4, which slows down the travel speed of the hydraulic oil, thereby reducing the probability that the hydraulic oil with a high travel speed enters the gap between the movable diaphragm 2 and the shell 1 before the movable diaphragm 2 is completely in contact with the shell 1, and further improves the interception efficiency of the one-way transmission channel 3 for the hydraulic oil flowing in from the liquid outlet 12.

[0043] As a preferred embodiment of this implementation, Figure 1 As shown, the elastic movable member 4 includes a plurality of springs arranged at intervals in the one-way transmission channel 3, and a flow gap 5 for the hydraulic oil to pass through is formed between two adjacent springs and between at least part of the springs and the housing 1. By setting a plurality of springs, when the hydraulic oil flows in from the liquid outlet 12, at least part of the plurality of springs can be deformed toward the movable diaphragm 2 under the action of the hydraulic oil pressure, thereby increasing the probability of the springs contacting with the hydraulic oil. When the hydraulic oil flowing in from the liquid outlet 12 is small, the probability of the hydraulic oil not contacting the spring due to the small amount of hydraulic oil is reduced, thereby effectively improving the pushing effect of the elastic movable member 4 on the movable diaphragm 2. In addition, when the hydraulic oil flows from the liquid inlet 11 and the one-way transmission channel 3 to the liquid outlet 12, the movable diaphragm 2 will be deformed toward the elastic movable member 4 under the pushing action of the hydraulic oil. By setting the flow gap 5 between the springs and between the springs and the housing 1, a movement channel is provided for the hydraulic oil, thereby ensuring that the hydraulic oil can flow smoothly from the liquid inlet 11 to the liquid outlet 12.

[0044] As a preferred embodiment of the present application, the housing 1 includes a top plate and a bottom plate, and the movable diaphragm 2 is respectively abutted against the top plate and the bottom plate and is installed inside the housing 1 by interference fit. The movable diaphragm 2 is installed inside the housing 1 by interference fit, which eliminates the need for a separate fixing for fixing the movable diaphragm 2, helps to optimize the structural design of the hydraulic oil one-way transmission mechanism, and the installation of the movable diaphragm 2 is relatively convenient, simplifying the installation process of the hydraulic oil one-way transmission mechanism.

[0045] As a preferred implementation of the present application, Figure 1 , Figure 2 As shown, the one-way transmission channel 3 includes a first transmission channel 31 and a second transmission channel 32, and the first transmission channel 31 and the second transmission channel 32 share the same inlet 11 and the same outlet 12. By setting the first transmission channel 31 and the second transmission channel 32, two transmission paths are provided for the hydraulic oil, which, on the one hand, increases the transmission efficiency of the hydraulic oil from the inlet 11 to the outlet 12, thereby improving the oil flow efficiency of the hydraulic oil one-way transmission mechanism; on the other hand, when one of the first transmission channel 31 and the second transmission channel 32 cannot transmit the hydraulic oil due to damage to the active diaphragm 2 or blockage by foreign matter, the other one of the two can normally transport the hydraulic oil to meet the normal oil flow of the hydraulic oil one-way transmission mechanism. The first transmission channel 31 and the second transmission channel 32 share the same inlet 11 and outlet 12, which simplifies the structural design of the hydraulic oil one-way transmission mechanism and helps to reduce the manufacturing difficulty of the hydraulic oil one-way transmission mechanism.

[0046] Figure 2 The arrows in FIG. 3 show the movement trajectory of the hydraulic oil in the first transmission channel 31 and the second transmission channel 32 .

[0047] Preferably, the movable diaphragm 2 includes a first movable portion that cooperates with the housing 1 to form the first transmission channel 31 and a second movable portion that cooperates with the housing 1 to form the second transmission channel 32, and the first movable portion and the second movable portion are integrally formed. Such an arrangement can reduce the difficulty of manufacturing the movable diaphragm 2 and reduce the difficulty of installing the first movable portion and the second movable portion into the housing 1.

[0048] As a preferred embodiment of the present application, the movable diaphragm 2 is made of rubber material. The movable diaphragm 2 made of rubber material can maintain good integrity under repeated flushing of hydraulic oil and has good durability.

[0049] A diverter 6, such as Figure 3As shown, it includes a housing 7, a high-pressure oil passage 8 for hydraulic oil to enter is provided inside the housing 7, and also includes the hydraulic oil one-way transmission mechanism 9 as described above, and the hydraulic oil one-way transmission mechanism 9 is installed on the high-pressure oil passage 8. The steering gear 6 of the present application can effectively prevent the hydraulic oil from flowing back from the steering gear 6 to the oil pump, and has a good one-way oil guiding effect.

[0050] A fuel vehicle includes the steering gear 6 as described above. The steering gear 6 in the fuel vehicle of the present application can realize unidirectional conduction of hydraulic oil, and the hydraulic oil will not flow back, which can effectively ensure the accuracy of the steering wheel steering during the driver's driving process and greatly reduce the probability of the steering wheel shaking due to the backflow of hydraulic oil.

[0051] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0052] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0053] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A one-way transmission mechanism for hydraulic oil, characterized in that: It includes a shell and a movable diaphragm arranged inside the shell, the shell includes a liquid inlet and a liquid outlet, the movable diaphragm and the shell together form a one-way transmission channel for transmitting hydraulic oil from the liquid inlet to the liquid outlet, when the hydraulic oil enters the one-way transmission channel from the liquid outlet, the movable diaphragm is deformed by the pressure of the hydraulic oil, thereby abutting against the shell to block the one-way transmission channel.

2. The one-way transmission mechanism of hydraulic oil according to claim 1, characterized in that: It also includes an elastic movable part located inside the shell, and the elastic movable part can be deformed toward the movable diaphragm under the action of hydraulic oil pressure to make the elastic movable part abut against the shell.

3. The one-way transmission mechanism of hydraulic oil according to claim 2, characterized in that: The elastic movable part includes a plurality of springs arranged at intervals in the one-way transmission channel, and a flow gap for hydraulic oil to pass through is formed between two adjacent springs and between at least part of the springs and the housing.

4. The one-way transmission mechanism of hydraulic oil according to claim 1, characterized in that: The shell comprises a top plate and a bottom plate, and the movable diaphragm is respectively in contact with the top plate and the bottom plate and is installed inside the shell by means of interference fit.

5. The one-way transmission mechanism of hydraulic oil according to claim 1, characterized in that: The one-way transmission channel includes a first transmission channel and a second transmission channel, and the first transmission channel and the second transmission channel share the same liquid inlet and the same liquid outlet.

6. The one-way transmission mechanism of hydraulic oil according to claim 1, characterized in that: The movable diaphragm is made of rubber material.

7. A steering gear, comprising a housing, wherein a high-pressure oil passage is provided inside the housing for hydraulic oil to enter, characterized in that: It also includes the hydraulic oil one-way transmission mechanism according to any one of claims 1 to 6, and the hydraulic oil one-way transmission mechanism is installed in the high-pressure oil channel.

8. A fuel vehicle, characterized in that: Comprising a diverter as claimed in claim 7.

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