Multi-path control lubricating medium distribution valve

Abstract

The utility model relates to the field of lubricating equipment, in particular to a multi-path control lubricating medium distribution valve which comprises a valve block with a through cavity and a valve rod rotatably arranged in the through cavity. The valve block is provided with a plurality of transverse oil outlet cavities at intervals in the axis direction of the through cavity, the transverse oil outlet cavities communicate with the through cavity, the projections of the transverse oil outlet cavities in the axis direction of the through cavity are arranged in a staggered mode, and the transverse oil outlet cavities communicate with oil supply cavities penetrating to the outer side of the valve block; oil guide areas are formed in the positions, corresponding to the transverse oil outlet cavities, of the valve rod, the valve rod is arranged to be hollow, oil outlet holes are formed in the oil guide areas of the valve rod, and the oil outlet holes are formed in such a way that when the oil outlet holes communicate with the transverse oil outlet cavities in the positions corresponding to the oil guide areas, at least one of the other oil outlet holes is closed by the cavity wall of the through cavity in the corresponding position; the valve rod communicates with an oil supply pipeline. The oil outlet holes are formed in the length direction of the valve rod, and the transverse oil outlet cavity is formed in the length direction of the valve rod, so that the existing problems are effectively solved.

Description

Technical Field

[0001] The utility model relates to the field of lubrication equipment, and in particular to a multi-way controlled lubrication medium distribution valve. Background Art

[0002] Lubricating grease is widely used in various types of engineering machinery. In some working conditions of lubricating media, it is necessary to distribute the lubricating media to different lubrication node positions through an oil pump. The lubricating medium distributor can distribute the input lubricating medium to different pipelines, so it is widely used in lubrication equipment. The application number 202320916970.0 discloses a grease filling distributor, which has an oil distribution channel on the valve core and multiple oil outlet holes on the valve body. The oil distribution channel is connected to different oil outlet holes through the rotation of the valve core to realize the distribution of the lubricating oil circuit at different oil outlet hole positions.

[0003] In this type of existing distributor, each oil outlet hole is located at the same layer, which results in that the adjacent oil outlet holes on the inner surface of the valve body are closer, and the requirements for position accuracy during processing are high, and the position accuracy requirements for the oil distribution channel and the oil outlet hole are high.

[0004] Based on this, in order to increase the distance between adjacent oil outlet holes in some embodiments, the outer diameter of the valve core is increased, thereby increasing the lateral profile of the entire distributor. Therefore, how to solve the size limitation of the valve block and the valve core due to the oil outlet hole position is a problem that needs to be solved at present. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-way controlled lubricating medium distribution valve, which effectively solves the existing problems by setting multiple oil outlet holes in the length direction of the valve stem and arranging horizontal oil outlet cavities along the length direction of the valve stem.

[0006] The utility model also provides a multi-way controlled lubricating medium distribution valve, comprising a valve block with a through cavity and a valve stem rotatably arranged in the through cavity; the valve block is provided with a plurality of transverse oil outlet cavities at intervals along the axial direction of the through cavity, the transverse oil outlet cavities are connected with the through cavity, the projections of the transverse oil outlet cavities along the axial direction of the through cavity are staggered, and the transverse oil outlet cavities are respectively connected with oil supply cavities that penetrate to the outside of the valve block; the valve stem is formed with oil guide areas at positions corresponding to the respective transverse oil outlet cavities, the valve stem is arranged to be hollow, and the valve stem is respectively provided with oil outlet holes in the respective oil guide areas, the oil outlet holes are arranged in such a way that when the oil outlet hole is connected with the transverse oil outlet cavity at the position of the corresponding oil guide area, at least one of the other oil outlet holes is closed by the cavity wall of the through cavity at the corresponding position; the valve stem is connected with an oil supply pipeline.

[0007] Furthermore, the extension direction of the oil supply cavity is perpendicular to the lateral oil outlet cavity.

[0008] Furthermore, a mounting hole is formed at the lateral oil outlet chamber and extends through the side of the valve block. The distribution valve also includes a one-way valve portion installed at the mounting hole. The one-way valve portion can open when the lubricating medium pressure in the lateral oil outlet chamber is greater than a set value to allow the lubricating medium in the lateral oil outlet chamber to enter the oil supply chamber.

[0009] Furthermore, the one-way valve portion includes a block slidably arranged in the lateral oil outlet chamber, a plug arranged at the mounting hole position, and a spring arranged between the plug and the block, and the block can move between opening the oil supply chamber and closing the oil supply chamber.

[0010] Furthermore, the plug is threadably screwed onto the valve block.

[0011] Furthermore, a section of the transverse oil outlet cavity close to the mounting hole forms a cross-section enlarged section, and the oil supply cavity is connected to the cross-section enlarged section; the blocking block is slidably mounted on the cross-section enlarged section.

[0012] Furthermore, the valve block is provided with at least two transverse oil outlet cavities at a position corresponding to one of the oil guide areas.

[0013] Further, the oil supply pipeline includes a first oil supply hole arranged in the valve block and a second oil supply hole arranged in the valve stem; the inner wall of the through cavity of the valve block is provided with a first annular cavity at the position of the first oil supply hole, and the first annular cavity communicates with the first oil supply hole and the second oil supply hole, and / or

[0014] A second annular cavity is provided on the outer surface of the valve stem at the position of the second oil supply hole, and the second annular cavity communicates with the first oil supply hole and the second oil supply hole.

[0015] Furthermore, one end of the valve stem extends out of the valve block to form a marking end, and the valve block is provided with a marking plate at the position of the marking end, and the marking plate corresponds to a first marking line of each of the transverse oil outlet chamber positions, and the marking end is provided with a second marking line, and the second marking line is arranged so that when the second marking line is aligned with the first marking line, the transverse oil outlet chambers at the corresponding positions of the first marking lines are connected to the oil outlet holes at the corresponding positions.

[0016] Furthermore, a rotating sealing ring is clamped between the marking plate and the valve block.

[0017] The beneficial effect of the utility model is that, by arranging a plurality of oil outlet holes in the length direction of the valve stem and arranging a transverse oil outlet cavity along the length direction of the valve stem, the existing problem is effectively solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure 2 for Figure 1 A schematic structural diagram of the bottom position of the valve block in the illustrated embodiment.

[0021] Figure 3 for Figure 1 Schematic diagram of the combined structure of the valve stem and the marking plate in the illustrated embodiment.

[0022] Figure 4 for Figure 1 The illustrated embodiment is a schematic side sectional view of the structure without the valve stem.

[0023] Figure 5 It is a structural schematic diagram of an embodiment of the utility model at the valve stem position.

[0024] Among them: 1. valve block; 2. valve stem; 3. through cavity; 4. horizontal oil outlet cavity; 401, cross-sectional expansion section; 5. oil supply cavity; 6. oil guide area; 7. oil outlet hole; 8. mounting hole; 9. one-way valve part; 901, blocking block; 902, plug; 903, spring; 10. first oil supply hole; 11. second oil supply hole; 12. first annular cavity; 13. second annular cavity; 14. marking end; 15. marking plate; 16. first marking line; 17. second marking line; 18. rotating sealing ring. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0026] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0027] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0028] In the present utility model, 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 one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the 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 utility model. 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.

[0030] In the present utility model, if Figure 1-5As shown, a multi-way controlled lubricating medium distribution valve is provided, comprising a valve block 1 with a through cavity 3, and a valve stem 2 rotatably arranged in the through cavity; the valve block 1 is provided with a plurality of transverse oil outlet cavities 4 at intervals along the axial direction of the through cavity 3, the transverse oil outlet cavities 4 are communicated with the through cavity 3, the projections of the transverse oil outlet cavities 4 along the axial direction of the through cavity 3 are staggered, and the transverse oil outlet cavities 4 are respectively communicated with an oil supply cavity 5 that penetrates to the outside of the valve block 1; the valve stem 2 is formed with an oil guide area 6 at a position corresponding to each of the transverse oil outlet cavities 4, the valve stem 2 is arranged to be hollow, and the valve stem 2 is respectively provided with an oil outlet hole 7 at each of the oil guide areas 6, the oil outlet hole 7 is arranged so that when the oil outlet hole 7 is communicated with the transverse oil outlet cavity 4 at the position corresponding to the oil guide area 6, at least one of the other oil outlet holes 7 is closed by the cavity wall of the through cavity 3 at the corresponding position; the valve stem 2 is connected with an oil supply pipeline.

[0031] When the distribution valve of the utility model is in use, lubricating medium is supplied to the inside of the valve stem 2 through the oil supply pipeline, and the oil outlet hole 7 is connected with the horizontal oil outlet cavity 4 at the position of the corresponding oil guide area 6 by rotating the valve stem 2, so that the corresponding oil supply cavity 5 is connected to discharge oil. By rotating the valve stem 2, the oil outlet hole 7 of the oil guide area 6 can be switched to be connected to the outside, so as to switch different oil supply pipelines to supply oil to the outside, thereby completing the external oil circuit distribution.

[0032] The utility model provides a plurality of transverse oil outlet cavities 4 distributed along the length direction of the valve stem 2, so that the cavity openings of the transverse oil outlet cavities 4 on the inner wall of the through cavity 3 can be dispersedly arranged on the inner wall of the through cavity 3, and then the distance of the cavity openings of the transverse oil outlet cavities 4 can be increased in the length direction of the through cavity 3, so as to provide the possibility of increasing the distance between the cavity openings of adjacent transverse oil outlet cavities 4 without increasing the cavity diameter of the through cavity 3, and thus in some embodiments, the radial dimension requirements of the valve stem 2 are reduced, and the radial dimension requirements for the valve block 1 are reduced. In this way, the lateral profile dimensions of the entire distribution valve can be reduced in some application scenarios.

[0033] In a preferred embodiment, a further optimized configuration of the utility model is that the extension direction of the oil supply cavity 5 is perpendicular to the horizontal oil outlet cavity 4. Figure 4 and 5 As shown, by such an arrangement, the oil outlet of the oil supply chamber 5 is located at the end of the valve block 1, so that the oil distribution direction of the distribution valve can be adjusted.

[0034] For the implementation of the utility model, as a preferred embodiment, further specifically, the lateral oil outlet chamber 4 is formed with a mounting hole 8 that penetrates to the side of the valve block 1, and the distribution valve also includes a one-way valve portion 9 installed at the mounting hole 8. The one-way valve portion 9 can open when the lubricating medium pressure in the lateral oil outlet chamber 4 is greater than a set value, so that the lubricating medium in the lateral oil outlet chamber 4 enters the oil supply chamber 5.

[0035] like Figure 4 As shown, by providing a one-way valve portion 9, the oil output of each oil supply chamber 5 can be conveniently managed, so that when the oil outlet hole 7 is misaligned with the corresponding lateral oil outlet chamber 4, the one-way valve portion 9 is used to close the lateral oil outlet chamber 4 to prevent the hydraulic oil in the oil supply chamber 5 from flowing in the opposite direction and fluctuating.

[0036] Moreover, in the present invention, by arranging a check valve in the lateral oil outlet chamber 4, the check valve portion 9 can be separately installed at the mounting hole 8 position by utilizing the lateral space of the valve block 1, thereby facilitating the disassembly and adjustment of the check valve portion 9. Moreover, the present invention reduces the size requirements of the valve stem 2 and the size requirements of the inner diameter of the through chamber 3 of the valve block 1 by arranging the lateral oil outlet chamber 4 along the length direction of the through chamber 3, thereby allowing the valve block 1 to have a larger lateral space for arranging the check valve portion 9.

[0037] exist Figure 4 In the illustrated embodiment, for the structure of the one-way valve portion 9 in the utility model, further specifically, the one-way valve portion 9 includes a block 901 slidably arranged in the lateral oil outlet chamber 4, a plug 902 arranged at the position of the mounting hole 8, and a spring 903 arranged between the plug 902 and the block 901, and the block 901 can move between opening the oil supply chamber 5 and closing the oil supply chamber 5.

[0038] exist Figure 4 In the embodiment shown, for the structure of the utility model, further specifically, as Figure 4 As shown, the plug 902 is threadedly screwed and installed on the valve block 1. By screwing the plug 902 on the valve block 1, the one-way valve part 9 can be disassembled and assembled by rotating the plug 902, and the limiting force of the spring 903 on the valve block 1 can be adjusted by rotating the plug 902 to adjust the opening pressure of the one-way valve part 9.

[0039] exist Figure 4 In the illustrated embodiment, for the structure of the utility model, to be more specific, a section of the transverse oil outlet chamber 4 close to the mounting hole 8 forms a cross-sectional enlarged section 401, and the oil supply chamber 5 is connected to the cross-sectional enlarged section 401; the blocking block 901 can be slidably installed in the cross-sectional enlarged section 401.

[0040] like Figure 4 As shown, the block 901 is arranged in a spherical shape, and the oil supply chamber 5 is arranged in the middle section of the cross-sectional expansion section 401. When the block 901 is located at the right end of the cross-sectional expansion section 401 under the action of the spring 903, it can close the right section of the transverse oil outlet chamber 4. When the oil outlet hole 7 is connected with the transverse oil outlet chamber 4, it moves toward the plug 902 through the oil supply chamber 5 under the action of the oil pressure of the oil outlet hole 7, so that the lubricating medium enters the oil supply chamber 5.

[0041] exist Figure 4 In the embodiment shown, for the structure of the utility model, further specifically, as shown in the figure, the valve block 1 is provided with at least two of the lateral oil outlet chambers 4 at a position corresponding to one of the oil guide areas 6. By providing more than one lateral oil outlet chamber 4 at a single oil guide area 6, the number of oil guide areas 6 can be reduced on the premise of setting the number of oil supply chambers 5, thereby reducing the length of the lateral oil outlet chamber 4 in the length direction of the valve stem 2, and further reducing the length of the valve stem 2 and the valve block 1.

[0042] exist Figure 4 In the illustrated embodiment, for the structure of the utility model, further specifically, as shown in the figure, the oil supply pipeline includes a first oil supply hole 10 provided in the valve block 1 and a second oil supply hole 11 provided in the valve stem 2; the inner wall of the through cavity 3 of the valve block 1 is provided with a first annular cavity 12 at the position of the first oil supply hole 10, and the first annular cavity 12 communicates the first oil supply hole 10 and the second oil supply hole 11;

[0043] Or, in an optional embodiment, it is also possible to Figure 5 It is arranged that the outer surface of the valve stem 2 is provided with a second annular cavity 13 at the position of the second oil supply hole 11 , and the second annular cavity 13 communicates with the first oil supply hole 10 and the second oil supply hole 11 .

[0044] In an optional embodiment, the first annular cavity 12 and the second annular cavity 13 may also be provided simultaneously.

[0045] In order to further facilitate the assembly and debugging of the valve stem 2 and the valve block 1 of the utility model, and to facilitate the correction and monitoring of the position accuracy of the valve stem 2 during use, in a preferred embodiment, a further optimization setting of the utility model is that one end of the valve stem 2 extends out of the valve block 1 to form a marking end 14, and the valve block 1 is provided with a marking plate 15 at the position of the marking end 14, and the marking plate 15 corresponds to a first marking line 16 of each position of the horizontal oil outlet chamber 4, and the marking end 14 is provided with a second marking line 17, and the second marking line 17 is arranged so that when the second marking line 17 is aligned with the first marking line 16, the horizontal oil outlet chamber 4 at the corresponding position of the first marking line 16 is connected to the oil outlet hole 7 at the corresponding position.

[0046] In a specific embodiment, as shown in the figure, the marking plate 15 is connected to the valve block 1 by bolts, and the second marking line 17 is relatively fixed to the horizontal oil outlet cavity 4 of the valve block 1. Therefore, it is only necessary to process the second marking line 17 on the valve stem 2 when processing the valve stem 2.

[0047] In the illustrated embodiment, more specifically, a rotating seal ring 18 is clamped between the marking plate 15 and the valve block 1. As shown in the figure, the rotating seal ring 18 can be fixed at the same time after the mounting plate is fixed to prevent the valve stem 2 from leaking oil at the marking end 14.

[0048] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0049] 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 multi-way controlled lubricating medium distribution valve, characterized in that: It comprises a valve block having a through cavity, and a valve stem rotatably arranged in the through cavity; The valve block is provided with a plurality of transverse oil outlet cavities at intervals along the axial direction of the through cavity, the transverse oil outlet cavities are communicated with the through cavity, the projections of the transverse oil outlet cavities along the axial direction of the through cavity are staggered, and the transverse oil outlet cavities are respectively communicated with an oil supply cavity penetrating to the outside of the valve block; The valve stem is formed with an oil guide area at a position corresponding to each of the transverse oil outlet cavities, the valve stem is arranged to be hollow, and the valve stem is respectively provided with an oil outlet hole at each of the oil guide areas, the oil outlet holes being arranged in such a way that when the oil outlet hole is connected to the transverse oil outlet cavity at the position corresponding to the oil guide area, at least one of the other oil outlet holes is closed by the cavity wall of the through cavity at the corresponding position; The valve stem is connected with an oil supply pipeline.

2. The multi-way controlled lubricating medium distribution valve according to claim 1, characterized in that: The extending direction of the oil supply cavity is perpendicular to the lateral oil outlet cavity.

3. The multi-way controlled lubricating medium distribution valve according to claim 2, characterized in that: The lateral oil outlet chamber is formed with a mounting hole extending through the side of the valve block. The distribution valve also includes a one-way valve portion installed at the mounting hole. The one-way valve portion can open when the lubricating medium pressure in the lateral oil outlet chamber is greater than a set value, so that the lubricating medium in the lateral oil outlet chamber enters the oil supply chamber.

4. The multi-way controlled lubricating medium distribution valve according to claim 3, characterized in that: The one-way valve portion includes a block slidably arranged in the lateral oil outlet chamber, a plug arranged at the mounting hole position, and a spring arranged between the plug and the block. The block can move between opening and closing the oil supply chamber.

5. The multi-way controlled lubricating medium distribution valve according to claim 4, characterized in that: The plug is threadably screwed and installed on the valve block.

6. The multi-way controlled lubricating medium distribution valve according to claim 4, characterized in that: A section of the transverse oil outlet cavity close to the mounting hole forms a cross-section enlarged section, and the oil supply cavity is connected to the cross-section enlarged section; The blocking block is slidably mounted on the cross-section enlargement section.

7. The multi-way controlled lubricating medium distribution valve according to claim 1, characterized in that: The valve block is provided with at least two transverse oil outlet chambers at a position corresponding to one of the oil guide areas.

8. The multi-way controlled lubricating medium distribution valve according to claim 1, characterized in that: The oil supply pipeline includes a first oil supply hole arranged on the valve block and a second oil supply hole arranged on the valve stem; The inner wall of the through cavity of the valve block is provided with a first annular cavity at the position of the first oil supply hole, the first annular cavity is connected with the first oil supply hole and the second oil supply hole, and / or A second annular cavity is provided on the outer surface of the valve stem at the position of the second oil supply hole, and the second annular cavity communicates with the first oil supply hole and the second oil supply hole.

9. The multi-way controlled lubricating medium distribution valve according to claim 1, characterized in that: One end of the valve stem extends out of the valve block to form a marking end, and the valve block is provided with a marking plate at the position of the marking end, and the marking plate corresponds to the first marking line of each horizontal oil outlet cavity position, and the marking end is provided with a second marking line, and the second marking line is arranged so that when the second marking line is aligned with the first marking line, the horizontal oil outlet cavity at the corresponding position of most first marking lines is connected with the oil outlet hole at the corresponding position.

10. The multi-way controlled lubricating medium distribution valve according to claim 9, characterized in that: A rotating sealing ring is clamped between the marking plate and the valve block.

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