Lubricating oil block and tractor hydraulic system

Abstract

The utility model provides a lubricating oil block and a tractor hydraulic system. The lubricating oil block comprises an oil block body, and the oil block body is divided into a mounting area and a throttling area; and the mounting area is communicated with the throttling area through a conducting oil duct. A plurality of throttling assemblies capable of communicating with components on the outer side of the oil block body are arranged in the throttling area at intervals. The lubricating oil block further comprises a one-way valve, and the one-way valve is arranged in the installation area, has a threshold value and can expose the conduction oil channel. The lubricating oil block further comprises a pressure relief assembly, and the pressure relief assembly is arranged on the oil block body and communicates with the installation area. When lubricating oil is guided to the oil block body through the installation area and the oil pressure of the lubricating oil is higher than the threshold value of the one-way valve, the one-way valve can open the pressure relief assembly. The one-way valve, the throttling assembly and the pressure relief assembly are integrated on the lubricating oil block, the structure is simple, the arrangement space of the whole machine is saved, the number of oil pipes is reduced, and meanwhile the cost is reduced.

Description

Technical Field

[0001] This application relates to the field of tractor hydraulic system technology, and more particularly to lubricating oil blocks and tractor hydraulic systems. Background Technology

[0002] When the clutches and gears in existing tractors need lubrication, hydraulic oil is often branched out from the hydraulic system for lubrication. In order to ensure sufficient lubrication flow in the transmission system, an external back pressure valve is often required, and then an oil pipe is connected. Throttling ports must also be installed on the pipe joints to ensure accurate lubrication flow.

[0003] The existing connection methods are not only costly, but also involve complex and intricate oil pipe layout, occupying a large amount of space in the machine and having a dispersed structure. Furthermore, when the lubrication flow is insufficient, it is difficult to repair and replace the pipe joints.

[0004] Therefore, there is an urgent need for lubricating oil blocks and tractor hydraulic systems to address the technical problems existing in the current technology to some extent. Utility Model Content

[0005] The purpose of this application is to provide a lubricating oil block and a tractor hydraulic system, which to a certain extent solves the technical problems in the prior art where oil leaks from the high-pressure area to the low-pressure area, ultimately resulting in low volumetric efficiency and certain pulsating noises caused by pressure pulses.

[0006] This application also provides a lubricating oil block, the lubricating oil block comprising:

[0007] The oil block body is divided into an installation area and a throttling area; the installation area and the throttling area are connected by a connecting oil passage; the throttling area is provided with multiple throttling components that can communicate with components on the outside of the oil block body at intervals;

[0008] A one-way valve, disposed in the installation area, having a threshold and capable of exposing the conduction oil passage;

[0009] A pressure relief assembly is disposed on the oil block body and communicates with the installation area; when lubricating oil flows through the installation area to the oil block body, and when the oil pressure of the lubricating oil is higher than the threshold of the one-way valve, the one-way valve can open the pressure relief assembly.

[0010] In the above technical solution, the throttling area is a throttling oil passage opened in the oil block body; the plurality of throttling components are respectively connected to the throttling oil passage.

[0011] In the above technical solution, the throttling component further includes a throttling plate;

[0012] The sidewall of the oil block body is provided with a throttling oil channel that connects the throttling oil passage to the outside of the oil block body at intervals in the throttling area.

[0013] The throttling vane is disposed in the throttling oil channel.

[0014] In the above technical solution, the throttling plate is further provided with a throttling orifice;

[0015] The number and size of the throttling orifices are adjusted according to the needs of the lubricating oil.

[0016] In the above technical solution, four throttling components are provided, two of which are disposed opposite each other at both ends of the oil block body along the first direction, and the remaining two throttling components are disposed at intervals at one end of the oil block body along the second direction.

[0017] In the above technical solution, the installation area is further defined as an installation channel formed in the oil block body;

[0018] The installation channel extends along the first direction and passes through both ends of the oil block body along the first direction.

[0019] In the above technical solution, the one-way valve further includes a valve seat, a sealing ring, a spring, and a valve body;

[0020] The valve seat is disposed on the side wall of the oil block body and seals one end of the installation channel along the first direction; the sealing ring is disposed between the valve seat and the oil block body;

[0021] The spring and the valve body are disposed in the mounting channel, and the two ends of the spring are respectively connected to the valve body and the valve seat.

[0022] In the above technical solution, the pressure relief component further includes a pressure relief port; the pressure relief port is opened in the oil block body and communicates with the connecting oil passage.

[0023] This application also provides a tractor hydraulic system, including the aforementioned lubricating oil block.

[0024] Compared with the prior art, this application has the following beneficial effects:

[0025] The lubricating oil block of this application includes an oil block body, preferably in the form of a cuboid structure. The cuboid oil block body is divided into an upper and lower arranged mounting area and a throttling area; and the mounting area and the throttling area are connected by a connecting oil passage. In addition, the throttling area is provided with a plurality of throttling components that can communicate with components on the outside of the oil block body at intervals.

[0026] The lubricating oil block also includes a one-way valve, which is located in the installation area, has a threshold, and exposes the oil passage. The lubricating oil block also includes a pressure relief assembly, which is located on the block body and communicates with the installation area. When lubricating oil flows through the installation area to the block body, and when the oil pressure of the lubricating oil exceeds the threshold of the one-way valve, the one-way valve opens the pressure relief assembly. Specifically, when the oil pressure of the lubricating oil flowing into the installation channel is too high, it may damage the one-way valve. To overcome this technical problem, the lubricating oil block of this application also includes a pressure relief assembly; the pressure relief assembly is located on the block body and communicates with the oil passage. In actual use, if the oil pressure of the lubricating oil is too high, the one-way valve opens the pressure relief assembly, allowing the lubricating oil to be released from the pressure relief assembly. The released lubricating oil is then redirected back to the lubricating oil storage tank through a pipeline.

[0027] In summary, this application integrates the one-way valve, throttling component, and pressure relief component onto the lubricating oil block. This structure is simple, saves space in the overall machine layout, reduces the number of oil pipes, and also lowers costs.

[0028] This application also provides an engine lubrication system including the aforementioned lubricating oil block. Therefore, it possesses all the beneficial effects of the lubricating oil block, and will not be described in detail here. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A cross-sectional view of the lubricating oil block provided in this application from a first-view perspective;

[0031] Figure 2 A cross-sectional view of the lubricating oil block provided in this application from a second perspective;

[0032] Figure 3 A cross-sectional view of the lubricating oil block provided in this application;

[0033] Figure 4 An exploded view of the check valve in the lubricating oil block provided in this application.

[0034] Reference numerals: 1-Oil block body; 102-Installation area; 103-Throttling area; 104-Conducting oil passage; 105-Throttling oil passage; 106-Installation channel;

[0035] 2-Throttle assembly; 201-Throttle plate; 202-Throttle oil passage; 203-First direction; 204-Second direction;

[0036] 3-Check valve; 301-Valve seat; 302-Spring; 303-Valve body; 304-Sealing ring;

[0037] 4-Pressure relief assembly; 401-Pressure relief port. Detailed Implementation

[0038] The following detailed embodiments are provided to aid the reader in gaining a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent upon understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order presented herein; rather, changes that will be apparent upon understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, descriptions of features known in the art may be omitted for clarity and brevity. The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application. Throughout this specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. Conversely, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between. As used herein, the term "and / or" includes any one of the relevant items listed and any combination of any two or more of them. Although terms such as "first," "second," and "third" may be used herein to describe individual components, assemblies, regions, layers, or portions, these components, assemblies, regions, layers, or portions are not limited by these terms. More precisely, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as such in the examples may also be referred to as the second component, assembly, region, layer, or part. For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device in use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element.Therefore, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., oscillating 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly. The terminology used herein is for describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. Variations in the shapes shown in the figures may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the figures but include changes in shape that occur during manufacturing. The features of the examples described herein may be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible as will be apparent upon understanding the disclosure of this application.

[0039] Example 1

[0040] When clutches and gears in tractors require lubrication, hydraulic oil is often branched from the hydraulic system. To ensure sufficient lubrication flow in the transmission system, an external back pressure valve is usually required, connected to an oil pipe. Throttling ports must also be installed on the pipe joints to guarantee accurate lubrication flow. However, in practical use, the complex arrangement of the oil pipes results in a large overall machine space and a dispersed structure. To address the aforementioned problems in the prior art, this application provides a lubricating oil block, which is described below in conjunction with... Figures 1-4 Detailed description.

[0041] Combination Figure 1 and Figure 2 As shown, the lubricating oil block includes an oil block body 1, preferably, the oil block body 1 has a cuboid structure. According to... Figure 3 Taking the placement angle as an example, the cuboid oil block body 1 is divided into an installation area 102 and a throttling area 103 arranged vertically; and the installation area 102 and the throttling area 103 are connected by a connecting oil passage 104. In addition, the throttling area 103 is provided with a plurality of throttling components 2 that can communicate with components on the outside of the oil block body 1 at intervals.

[0042] Combination Figure 3As shown, the lubricating oil block also includes a one-way valve 3, which is disposed in the mounting area 102, has a threshold, and can expose the guiding oil passage 104. In actual use, the lubricating oil is guided to the throttling area through the guiding oil passage 104 and supplied to other external components through the throttling assembly 2.

[0043] Combination Figure 3 As shown, the lubricating oil block also includes a pressure relief component 4, which is disposed on the oil block body 1 and communicates with the installation area 102. When lubricating oil flows through the installation area 102 to the oil block body 1, and when the oil pressure of the lubricating oil is higher than the threshold of the one-way valve, the one-way valve 3 can open the pressure relief component 4. Specifically, when the oil pressure of the lubricating oil flowing to the installation channel 106 is too high, the one-way valve 3 may be damaged. To overcome this technical problem, the lubricating oil block of this application also includes a pressure relief component 4; the pressure relief component 4 is disposed on the oil block body 1 and communicates with the installation channel 106. In actual use, once the oil pressure of the lubricating oil is too high, the one-way valve 3 opens the pressure relief component 4, allowing the lubricating oil to be released from the pressure relief component 4. The released lubricating oil is then re-directed through a pipeline to the lubricating oil storage tank (the lubricating oil storage tank is a component on the vehicle and is not within the scope of protection of this application, nor is it described in detail here).

[0044] In summary, this application integrates the one-way valve 3, the throttling component 2, and the pressure relief component 4 onto the lubricating oil block. This structure is simple, saves space in the overall machine layout, reduces the number of oil pipes, and also lowers costs.

[0045] In this embodiment, further, combined with Figure 3 As shown, the throttling region 103 is a throttling oil passage 105 formed in the oil block body 1. Specifically, the throttling oil passage 105 is cylindrical, with both ends extending through the oil block body 1 along its extension direction. Furthermore, multiple throttling components 2 are connected to the throttling oil passage 105. Combined with... Figure 3 As shown, four throttling components 2 are provided. Two throttling components are respectively located at both ends of the throttling oil passage 105 along its length, and the remaining two throttling components are located on the side wall of the oil block body 1 and communicate with the throttling oil passage 105. Specifically, two throttling components 2 are disposed opposite each other at both ends of the oil block body 1 along the first direction 203, and the remaining two throttling components 2 are spaced apart at one end of the oil block body 1 along the second direction 204. Figure 3 As shown, the first direction 203 refers to the horizontal direction, and the second direction 204 refers to the vertical direction. Therefore, the two throttling components 2 symmetrically arranged at both ends in the horizontal direction refer to... Figure 3 The two throttling components 2 on the left and right sides of the throttling block. The two throttling components 2 that are vertically spaced refer to the two throttling components 2 at the lower end of the throttling block.

[0046] In actual use, the lubricating oil is guided through the guide oil passage 104 to the throttling oil passage 105, and then through the throttling oil passage 105 to the four throttling components 2.

[0047] Furthermore, in combination Figure 2 and Figure 3 As shown, the throttling assembly 2 includes a throttling vane 201. The throttling vane 201 is fixed to the oil block body 1 by screwing.

[0048] For the throttling components 2 located at both ends of the throttling oil passage 105 along its length, the throttling plate 201 is directly fixed to the side wall forming the throttling oil passage 105 by screwing (in fact, the throttling plate 201 is fixed to the oil block body 1 by screwing).

[0049] For the throttling assembly disposed on the side wall of the oil block body 1, a throttling oil channel 202 is provided on the side wall of the oil block body 1, spaced apart from the throttling region 103. The two ends of the throttling oil channel 202 in its axial direction are respectively connected to the throttling oil passage 105 and the outside of the oil block body 1. Furthermore, a throttling plate 201 is disposed within the throttling oil channel 202 and is also fixed to the oil block body 1 by screwing. The throttling plate 201 here serves the purpose of throttling, ensuring a precise lubrication flow rate when flowing to other components.

[0050] Furthermore, the throttling vane 201 is provided with throttling orifices; the number and size of the throttling orifices are changed according to the lubricating oil demand. In other words, there are multiple throttling vanes 201, and the number and size of the throttling orifices on the multiple throttling vanes 201 are different. When the demand for lubricating oil flow changes, it is only necessary to remove the throttling vane 201 on the oil block body 1 and replace it with a throttling vane 201 of different specifications (different numbers of throttling orifices or throttling orifices of different diameters) to meet the needs of guiding different flow rates of lubricating oil. That is to say, various combinations of different numbers and sizes of throttling orifices can be used to supply lubricating oil to different components.

[0051] It should also be noted that the outside of the throttling oil passage 202 is connected to other components via a pipe.

[0052] In this embodiment, the installation area 102 is an installation channel 106 formed in the oil block body 1. Optionally, the installation channel 106 has a cylindrical structure. Figure 3 As shown, the installation channel 106 is disposed above the throttling oil passage 105, and a vertically extending guide oil passage 104 is provided between the installation channel 106 and the throttling oil passage 105. In addition, the installation channel 106 extends along the first direction 203 and passes through both ends of the oil block body 1 along the first direction 203.

[0053] Specifically, the one-way valve 3 includes a valve seat 301 and a sealing ring 304; wherein, the valve seat 301 is disposed on the side wall of the oil block body 1 and seals the mounting channel 106 at one end along the first direction 203; combined with Figure 3 As shown, the valve seat 301 is sealed at the left end of the mounting channel 106. In addition, to prevent lubricating oil from leaking out through the gap between the valve seat 301 and the oil block body 1, a sealing ring 304 is provided between the valve seat 301 and the oil block body 1; optionally, the sealing ring 304 is an O-ring 304.

[0054] The one-way valve 3 also includes a spring 302 and a valve body 303. The spring 302 and valve body 303 are disposed in the mounting channel 106, with both ends of the spring 302 connected to the valve body 303 and valve seat 301, respectively. In the initial state, the valve body 303 is sealed to the pressure relief port 401 (described below) under the action of the spring 302. When lubricating oil is introduced into the mounting channel 106 along the other end of the first direction 203, it sequentially presses down the valve body 303 and the spring 302. Because the one-way valve 3 has a threshold, when the lubricating oil flows at normal speed (below the threshold), the one-way valve 3 will always seal and connect the oil passage 104. Once the lubricating oil pressure is too high and exceeds the threshold of the one-way valve, the one-way valve 3 will open the pressure relief assembly 4, allowing the lubricating oil to flow out, preventing damage to the lubricating oil block due to excessive pressure. In addition, normally, when the lubricating oil flows to the installation channel 106, it will flow through the oil passage 104 to the throttling oil passage 105, and then through the throttling plate 201 to other components. During the application process, it was found that the viscosity of the lubricating oil will increase in winter. Therefore, when it flows through the throttling plate 201, the flow rate will be reduced, or the throttling orifice on the throttling plate 201 may be sealed due to the high viscosity of the lubricating oil. As a result, the oil pressure in the installation channel 106 will increase. When the oil pressure increases, the one-way valve 3 will automatically open the pressure relief component 4 to relieve the pressure of the lubricating oil.

[0055] In this embodiment, the pressure relief assembly 4 includes a pressure relief port 401; the pressure relief port 401 is located in the oil block body 1 and communicates with the installation channel 106. Figure 3 As can be seen, the pressure relief port is located on the upper side wall of the oil block body 1.

[0056] Example 2

[0057] This application also provides an engine lubrication system including the aforementioned lubricating oil block. Therefore, it possesses all the beneficial effects of the lubricating oil block, and will not be described in detail here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A lubricating oil block, characterized in that, include: The oil block body is divided into an installation area and a throttling area; the installation area and the throttling area are connected by a connecting oil passage; the throttling area is provided with a plurality of throttling components that can communicate with components on the outside of the oil block body at intervals; A one-way valve, disposed in the installation area, having a threshold and capable of exposing the conduction oil passage; A pressure relief assembly is disposed on the oil block body and communicates with the installation area; when lubricating oil flows through the installation area to the oil block body, and when the oil pressure of the lubricating oil is higher than the threshold of the one-way valve, the one-way valve can open the pressure relief assembly.

2. The lubricating oil block according to claim 1, characterized in that, The throttling area is a throttling oil passage opened in the oil block body; the plurality of throttling components are respectively connected to the throttling oil passage.

3. The lubricating oil block according to claim 2, characterized in that, The throttling assembly includes a throttling plate; The sidewall of the oil block body is provided with a throttling oil channel that connects the throttling oil passage to the outside of the oil block body at intervals in the throttling area. The throttling vane is disposed in the throttling oil channel.

4. The lubricating oil block according to claim 3, characterized in that, The throttling plate is provided with a throttling orifice; The number and size of the throttling orifices are adjusted according to the needs of the lubricating oil.

5. The lubricating oil block according to any one of claims 1-4, characterized in that, The throttling components are provided in four parts, two of which are disposed opposite each other at both ends of the oil block body along the first direction, and the remaining two are disposed at intervals at one end of the oil block body along the second direction.

6. The lubricating oil block according to claim 5, characterized in that, The installation area is an installation channel opened in the body of the oil block; The installation channel extends along the first direction and passes through both ends of the oil block body along the first direction.

7. The lubricating oil block according to claim 6, characterized in that, The one-way valve includes a valve seat, a sealing ring, a spring, and a valve body; The valve seat is disposed on the side wall of the oil block body and seals one end of the installation channel along the first direction; the sealing ring is disposed between the valve seat and the oil block body; The spring and the valve body are disposed in the mounting channel, and the two ends of the spring are respectively connected to the valve body and the valve seat.

8. The lubricating oil block according to claim 1, characterized in that, The pressure relief assembly includes a pressure relief port; the pressure relief port is located on the oil block body and is connected to the connecting oil passage.

9. A tractor hydraulic system, characterized in that, Includes the lubricating oil block as described in any one of claims 1-8.

Images