Oil-gas distribution device and valve element used for oil-gas distribution device

Abstract

The utility model provides an oil-gas distribution device and a valve element used for the oil-gas distribution device. The valve element comprises a valve element body, two or more oil gas grooves allowing oil gas to circulate are formed in the peripheral face of the valve element body at intervals, and the oil gas grooves extend in the oil gas circulation direction on the valve element body and are recessed in the center direction of the valve element body. At least part of the oil gas grooves are communicated with at least one other oil gas groove through a through hole formed in the valve element body. The oil-gas distributor can effectively improve the oil-gas distribution uniformity and avoid the problems of oil path blockage, small oil-gas passing amount and the like, thereby being particularly suitable for distribution of large-flow oil gas. The valve element is simple in structure, suitable for being machined and formed through various materials and / or various methods, and beneficial to reducing the cost of the valve element. According to the oil-gas distribution device based on the valve element, accurate oil-gas distribution can be achieved according to the needed proportion, and the problems of blocking and the like can be effectively solved.

Description

Technical Field

[0001] The utility model belongs to the field of lubricating oil devices, and in particular relates to an oil and gas distribution device and a valve core used therefor. Background Art

[0002] The oil-gas distributor is a crucial structure in the oil-gas lubrication system. Its main function is to distribute the oil-gas mixture flow to the lubrication points evenly or proportionally in two or more output flows. In the prior art, the main way for the oil-gas distributor to distribute the oil and gas flow is to open 10-30 oil inlet holes in the circumferential direction of the internal valve core, and use these oil inlet holes to distribute the oil and gas flow. This kind of valve core is generally cut on metal materials, which is difficult to process and is not environmentally friendly. At the same time, due to the small aperture, it is easy to clog, resulting in uneven distribution, which is not suitable for occasions with large flow.

[0003] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the present application and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the utility model is to provide an oil and gas distribution device and a valve core therefor, which is used to solve the problems that the existing oil and gas distributor distributes the oil and gas flow through dozens of oil inlet holes arranged on the circumference of the internal valve core, which is difficult to process, is easily clogged due to the small hole diameter, resulting in uneven distribution, and is not suitable for occasions with large flow rates.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a valve core for an oil and gas distribution device, the valve core comprising a valve core body, and the outer peripheral surface of the valve core body is provided with more than two oil and gas grooves for oil and gas circulation at intervals, each oil and gas groove extends on the valve core body along the oil and gas circulation direction, and is recessed toward the center direction of the valve core body, and at least some of the oil and gas grooves are connected to at least one other oil and gas groove via a through hole provided on the valve core body.

[0006] Optionally, the oil and gas grooves that are interconnected are connected to the same oil and gas outlet.

[0007] Optionally, the number of the oil and gas grooves is n times the number of the oil and gas outlets, n is an integer greater than or equal to 2, and every n oil and gas grooves are connected.

[0008] Optionally, the surface of the oil and gas groove located on the valve core body is a wavy surface.

[0009] Optionally, the number of the oil and gas grooves does not exceed 30, and the oil and gas grooves are evenly spaced apart on the circumferential surface of the valve core body.

[0010] Optionally, the valve core body is a metal cylinder or a non-metal cylinder.

[0011] Optionally, the bottom of part of the oil and gas grooves is closed by a base integrally connected to the valve core, and the oil and gas grooves with closed bottoms are connected to each other through a through hole that transversely penetrates the valve core body.

[0012] Optionally, the oil-gas grooves with closed bottoms and the oil-gas grooves with unclosed bottoms are alternately distributed on the circumferential surface of the valve core body.

[0013] The utility model also provides an oil and gas distribution device, which includes an inlet, an outlet and a valve core as described in any of the above schemes, wherein the valve core is sealed between the inlet and the outlet, the inlet of the oil and gas tank is connected to the inlet, and the outlet of the oil and gas tank is connected to the outlet.

[0014] Optionally, the valve core is arranged between the inlet portion and the outlet portion by interference fit.

[0015] Optionally, a sealing ring is provided between at least two of the valve core, the inlet portion and the outlet portion.

[0016] As described above, an oil and gas distribution device and a valve core used therefor of the utility model have the following beneficial effects: the valve core for the oil and gas distribution device provided by the utility model is provided with a plurality of oil and gas grooves extending along the oil and gas flow direction on the valve core body, and each oil and gas groove is connected with at least one other oil and gas groove through a through hole provided on the valve core body, which can effectively improve the uniformity of oil and gas distribution while avoiding problems such as oil circuit blockage and small oil and gas flow, and is therefore particularly suitable for the distribution of large flow rates of oil and gas. The valve core has a simple structure and is suitable for processing and forming with various materials and / or a variety of methods, which helps to reduce its cost. The oil and gas distribution device based on the valve core of the utility model can achieve precise distribution of oil and gas in the required proportion, and can effectively avoid problems such as blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is an exemplary front view of a valve core for an oil and gas distribution device provided by the utility model.

[0018] Figure 2 The figure shows an exemplary top view of a valve core for an oil and gas distribution device provided by the present invention.

[0019] Figure 3 Display as Figure 2 Schematic diagram of an exemplary cross-sectional structure along line AA.

[0020] Figure 4 Display as Figure 2 Schematic diagram of an exemplary cross-sectional structure along line BB.

[0021] Figure 5 Shown is an exemplary cross-sectional structural schematic diagram of the oil and gas distribution device provided by the utility model. DETAILED DESCRIPTION

[0022] The following is an explanation of the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. For example, when describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional view showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0023] For ease of description, spatially relative terms such as "under", "below", "below", "below", "above", "on", etc. may be used herein to describe the relationship of one element or feature shown in the drawings to other elements or features. It will be understood that these spatially relative terms are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the drawings. In addition, when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.

[0024] It should be noted that the diagrams provided in this embodiment are only used to illustrate the basic concept of the utility model in a schematic manner, and the diagrams only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the layout of the components may be more complicated. In order to make the diagrams as concise as possible, not all structures are marked in the drawings.

[0025] like Figures 1 to 4 As shown, this embodiment provides a valve core 1 for an oil and gas distribution device.

[0026] The valve core 1 includes a valve core body 11. The valve core body 11 is a columnar structure as a whole, and can be a metal column, such as a stainless steel column, or a non-metal column, such as a rubber column. The processing method can be selected according to the material. For example, if it is a metal material, it can be processed by cutting, laser or casting. If it is a non-metallic material, it can be processed by pressing, extrusion or injection molding. There are more than two oil and gas grooves 12 for oil and gas circulation on the outer peripheral surface of the valve core body 11. Each oil and gas groove 12 extends along the oil and gas circulation direction on the valve core body 11 and is recessed toward the center direction of the valve core body 11. For example, if the oil and gas enter the valve core 1 from top to bottom, the oil and gas groove 12 extends along the longitudinal direction of the valve core body 11. The setting of the oil and gas groove 12 greatly increases the oil and gas circulation channel compared with the previous oil inlet hole, which can increase the oil and gas flow rate and reduce the risk of blockage. Among them, at least part of the oil and gas groove 12 is connected to at least one other oil and gas groove 12 through a through hole 13 set on the valve core body 11. That is, a single oil and gas groove 12 can be connected to another oil and gas groove 12, or it can be connected to more than two oil and gas grooves 12, which depends on specific needs, such as the amount and / or flow rate of the oil and gas to be diverted, or the size of the valve core 1. The oil and gas grooves 12 that are interconnected can be connected to the same outlet or to different oil and gas outlets. In this embodiment, it is preferred to connect the oil and gas grooves 12 that are interconnected to the same oil and gas outlet, which can increase the oil and gas flow rate of a single outlet. Connecting each oil and gas groove 12 with another oil and gas groove 12 can not only mix the oil and gas in the oil and gas grooves 12 that are interconnected and improve the uniformity of oil and gas distribution, but also when the outlet of one of the oil and gas grooves 12 is blocked, the oil and gas in the oil and gas groove 12 can flow out through the outlet of the oil and gas groove 12 that is connected to it.

[0027] An exemplary method of using the valve core 1 provided in this embodiment can be referred to Figure 5 As shown, the valve core 1 is sealed and arranged at the inlet 2 and the outlet 3, the inlet of the oil and gas groove 12 of the valve core 1 is connected to the inlet 2, and the outlet of the oil and gas groove 12 is connected to the outlet 3. Figure 5 In the structure shown, four oil and gas grooves 12 are opened on the valve core 1, of which two oil and gas grooves 12 are closed at the bottom, and two oil and gas grooves 12 are not closed at the bottom. The oil and gas grooves 12 with closed bottoms are connected to the same outlet on the side of the outlet portion 3, and the oil and gas grooves 12 with not closed bottoms are connected to the same outlet at the bottom of the outlet portion 3, so the oil and gas in the oil and gas grooves 12 entering the valve core 1 from the inlet portion 2 will be divided into two parts through the valve core 1 and flow out through different outlets. Of course, this structure is only schematic, and the actual number of oil and gas grooves 12 and the outlet position of each oil and gas groove 12 can be flexibly set according to the number of parts to be diverted, and the sizes of the oil and gas grooves 12 and the through holes 13 can be flexibly set according to needs, and there is no specific limitation.

[0028] The improved structural design of the valve core provided in this embodiment can effectively improve the uniformity of oil and gas mixing and improve the distribution accuracy while avoiding problems such as oil path blockage and small oil and gas flow, and is therefore particularly suitable for the distribution of large flow oil and gas. The valve core has a simple structure and is suitable for processing and forming with various materials and / or multiple methods, which helps to reduce its cost.

[0029] In some examples, the valve core 1 itself has a base, and the bottoms of all the oil and gas grooves 12 are closed by the base. The base can be integrally formed or assembled with the valve core body 11. In the present embodiment, it is preferred to be integrally formed so that the base and the valve core body 11 can be seamlessly connected, which improves the sealing and makes the installation of the valve core easier. When the bottoms of all the oil and gas grooves 12 are closed, each oil and gas groove 12 is connected to at least another oil and gas groove 12 through a through hole 13 provided on the valve core body 11, and each oil and gas groove 12 will be connected to the oil and gas outlet located on its side. In other examples, the valve core 1 itself does not have a base, and the bottoms of each oil and gas groove 12 are not closed. When in use, the valve core 1 is fixed to an external base, and the unclosed bottom surface of the oil and gas groove 12 can be directly connected to the oil and gas outlet. In a preferred example of the present embodiment, Figures 1 to 4 As shown, the bottom of some oil and gas grooves 12 is closed by a base 14 integrally connected to the valve core 1, and the oil and gas grooves 12 with closed bottoms are connected to each other through a through hole 13 that transversely penetrates the valve core body 11. Preferably, the oil and gas grooves 12 with closed bottoms and the oil and gas grooves 12 with unclosed bottoms are alternately distributed on the circumferential surface of the valve core body 11. This not only helps to evenly distribute the oil and gas, but also helps to balance the overall structure of the oil and gas distribution device. For example Figures 1 to 4 In the structure shown, four oil and gas grooves 12 are evenly spaced on the circumference of the valve core body 11. The groove depth and groove width of the oil and gas grooves 12 are preferably the same. Two of the oil and gas grooves 12 are closed at the bottom, and two are not closed at the bottom. They are arranged alternately in pairs. The two oil and gas grooves 12 with closed bottoms are connected through a through hole 13 that passes through the valve core body 11 horizontally, and are connected to the same oil and gas outlet located on the side of the valve core 1. The two oil and gas grooves 12 with unclosed bottoms are connected to the same oil and gas outlet located at the bottom of the valve core 1, thereby dividing the oil and gas into two parts.

[0030] In actual use, the number of the oil and gas grooves 12 can be flexibly set as needed, especially according to the number of oil and gas outlets. In a preferred example, in order to achieve uniform distribution of oil and gas, the number of oil and gas grooves 12 is n times the number of oil and gas outlets, n is an integer greater than or equal to 2, and every n oil and gas grooves 12 are connected. For example, if there are 2 outlets, the number of oil and gas grooves 12 can be 4, and every 2 oil and gas grooves 12 are connected, and preferably, the center line of the valve core body 11 is used as a reference, and the two oil and gas grooves 12 located at opposite ends of the center line are connected to each other through the through hole 13. That is, the through hole 13 horizontally penetrates the valve core body 11 and passes through the center line. If there are 3 outlets, the number of oil and gas grooves 12 is 3n, for example, 6, and every 2 oil and gas grooves 12 can also be connected. In other examples, 3 or more oil and gas grooves 12 can also be connected to each other. But relatively speaking, the method of connecting every two oil and gas grooves 12 located in a symmetrical direction is not only convenient for the processing of the valve core 1, but also more conducive to the uniform mixing and distribution of oil and gas. In some other examples, in order to achieve other proportions of distribution, the number of interconnected oil and gas grooves may be different, and different oil and gas outlets may be connected to different numbers of oil and gas grooves. For example, if there are 2 oil and gas outlets and 8 oil and gas grooves, then 6 of the oil and gas grooves are connected to the same oil and gas outlet, and the other 2 oil and gas grooves are connected to another oil and gas outlet, that is, a 3:1 distribution is achieved. The number of oil and gas grooves and the oil and gas outlet may not be in a multiple relationship. For example, if there are 2 oil and gas outlets and 5 oil and gas grooves, then 3 of the oil and gas grooves are interconnected to the same oil and gas outlet, and the other 2 oil and gas grooves are interconnected to another oil and gas outlet.

[0031] In some examples, the surface of the oil and gas groove 12 located on the valve core body 11 is a wavy surface, and the surface connected to the external structure, such as the inlet 2 and the outlet 3, is preferably an arc surface, so that when the valve core body 11 is installed in an annular mounting seat, the side of each oil and gas groove 12 can be closed, which helps to simplify the overall structure. The surface of the oil and gas groove 12 is set to a wavy line shape, so that the surface of the valve core body 11 has a smooth concave-convex structure, which increases the contact area with the oil and gas and helps to mix the oil and gas evenly.

[0032] When the surface of the oil and gas groove 12 is a wavy surface, the opening of the through hole 13 is preferably arranged at the middle protrusion corresponding to the wavy surface of the oil and gas groove 12, and the opening position of the through hole 13 is preferably not higher than half of the height of the oil and gas groove 12, which is conducive to uniform mixing of oil and gas.

[0033] Considering the size of the oil-gas distribution device, in order to ensure the outlet flow of each oil-gas groove 12, the number of the oil-gas grooves 12 is preferably not more than 30, for example, controlled within 10. If a uniform distribution of the oil and gas flow is to be achieved, an even number is preferably used, and the number of oil-gas grooves connected to each outlet is preferably the same. The groove depth and groove width of each oil-gas groove 12 are preferably the same, and are preferably evenly spaced and distributed on the circumferential surface of the valve core body 11, so that the top view of the valve core body 11 will appear to be petal-like.

[0034] The valve core provided in this embodiment is suitable for various oil and gas distribution devices, especially for large flow occasions. It can accurately distribute oil and gas in proportion as needed, for example, dividing the oil and gas into multiple uniform portions. An exemplary description of its application will be given below.

[0035] like Figure 5 As shown, this embodiment also provides an oil-gas distribution device, which includes an inlet 2, an outlet 3 and a valve core 1 as described in any of the above schemes, wherein the valve core 1 is sealed between the inlet 2 and the outlet 3, the inlet of the oil-gas groove 12 is connected to the inlet 2, and the outlet of the oil-gas groove 12 is connected to the outlet 3. The specific structure of the valve core 1 can refer to the above content and will not be repeated here.

[0036] The materials of the inlet 2, the outlet 3 and the valve core 1 can be the same or different, and there is no specific limitation, but different materials may affect the connection method of each structure. For example, in some examples, the inlet 2 and the outlet 3 can be made of alloy materials such as stainless steel, and the valve core 1 can be made of alloy or non-metallic materials. The valve core 1 can be embedded in the outlet 3 by threaded fitting, or embedded in the outlet 3 by interference fitting, so that the oil and gas groove 12 of the valve core 1 is sealed by the outlet 3. The circumferential surface of the outlet 3 can also extend upward to the periphery of the inlet 2 to connect with the inlet 2, for example, by threaded fitting. The inlet 2 can be pressed and covered on the end face of the valve core 1, or connected to the end face of the valve core 1 by threaded fitting, or by means of fasteners such as screws. A sealing ring 3 can be provided at the interface between the inlet 2 and the outlet 3 to further ensure the sealing of the oil and gas distribution device.

[0037] exist Figure 5In the structure shown, the oil and gas channel of the inlet portion 2 has a larger funnel-shaped surface near the front end, a conical surface near the rear end, and a narrow cylindrical surface connecting the two ends, that is, the oil and gas channel of the inlet portion 2 first changes from large to small and then from small to large, which can make the oil and gas be transported and diffused forward along the front end funnel-shaped surface, making the oil and gas thinner and more uniform. After entering the narrow cylindrical surface, the reduction of the oil and gas channel can accelerate the oil and gas flow rate. When reaching the rear end, the channel expands again, so that the oil and gas can be more evenly distributed to each oil and gas groove 12, wherein some of the oil and gas grooves 12 are connected to the bottom opening of the outlet portion 3, and some of the oil and gas grooves 12 are connected to the opening on the side of the outlet portion 3, thereby dividing the single oil and gas flow into two oil and gas flows, one forward and one downward.

[0038] Of course, the above structure is only exemplary, and the valve core of this embodiment is applicable to a variety of oil and gas distribution devices, so the inlet and outlet can also be in other shapes, which will not be elaborated one by one.

[0039] In summary, the valve core for the oil and gas distribution device provided by the utility model is provided with a plurality of oil and gas grooves extending along the oil and gas flow direction on the valve core body, and each oil and gas groove is connected with at least one other oil and gas groove through a through hole provided on the valve core body, which can effectively improve the uniformity of oil and gas mixing and improve the distribution accuracy while avoiding the problems of oil circuit blockage and small oil and gas flow, and is therefore particularly suitable for the distribution of large flow oil and gas. The valve core has a simple structure and is suitable for processing and forming with various materials and / or multiple methods, which helps to reduce its cost. The oil and gas distribution device based on the valve core of the utility model can realize accurate proportional distribution of oil and gas, and can effectively avoid problems such as blockage.

[0040] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has higher industrial utilization value.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A valve core for an oil and gas distribution device, characterized in that: The valve core includes a valve core body, and at least two oil and gas grooves for oil and gas circulation are spaced apart on the outer peripheral surface of the valve core body. Each oil and gas groove extends along the oil and gas circulation direction on the valve core body and is recessed toward the center of the valve core body. At least some of the oil and gas grooves are connected to at least one other oil and gas groove via a through hole arranged on the valve core body.

2. The valve core for the oil and gas distribution device according to claim 1, characterized in that: The oil and gas grooves that are interconnected are connected to the same oil and gas outlet.

3. The valve core for the oil and gas distribution device according to claim 2, characterized in that: The number of the oil and gas grooves is n times the number of the oil and gas outlets, where n is an integer greater than or equal to 2, and every n oil and gas grooves are connected.

4. The valve core for an oil and gas distribution device according to claim 1, characterized in that: The surface of the oil and gas groove located on the valve core body is a wavy surface.

5. The valve core for an oil and gas distribution device according to claim 1, characterized in that: The number of the oil and gas grooves does not exceed 30, and the oil and gas grooves are evenly spaced and distributed on the circumferential surface of the valve core body.

6. The valve core for an oil and gas distribution device according to claim 1, characterized in that: The valve core body is a metal column or a non-metal column.

7. The valve core for an oil and gas distribution device according to any one of claims 1 to 6, characterized in that: The bottom of some oil and gas grooves is closed by a base integrally connected to the valve core, and the oil and gas grooves with closed bottoms are connected to each other through a through hole that transversely penetrates the valve core body.

8. The valve core for the oil and gas distribution device according to claim 7, characterized in that: The oil-gas grooves with closed bottoms and the oil-gas grooves with unclosed bottoms are alternately distributed on the circumferential surface of the valve core body.

9. An oil and gas distribution device, characterized in that: The oil and gas distribution device includes an inlet, an outlet and a valve core as described in any one of claims 1 to 8, wherein the valve core is sealed between the inlet and the outlet, the inlet of the oil and gas groove is connected to the inlet, and the outlet of the oil and gas groove is connected to the outlet.

10. The oil and gas distribution device according to claim 9, characterized in that: The valve core is arranged between the inlet portion and the outlet portion by interference fit, and / or a sealing ring is arranged between at least two of the valve core, the inlet portion and the outlet portion.

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