A multi-position six-way integrated rotary valve based on double-sided rotation

Abstract

The present invention relates to the technical field of hydraulic multi-way valves, and specifically discloses a multi-position six-way integrated rotary valve based on double-sided rotation, which includes an upper rotating shaft, an upper valve cover, a compression spring I, an upper valve plate, a valve port receiving plate, a valve core, a lower valve plate, a compression spring II, a lower valve cover, and a lower rotating shaft. The multi-position six-way integrated rotary valve based on double-sided rotation according to the present invention realizes multi-position switching and six-way multiple conduction modes through the misaligned rotation movement of the upper and lower valve plates relative to the valve core and the special staggered flow channel structure inside the valve core, and can freely achieve one-way conduction of two paths or multi-path mixed connection in the six paths, simplifying the flow control system.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic multi-way valves, and particularly relates to a multi-position six-way integrated rotary valve based on double-sided rotation. Background Art

[0002] The valve position upper limit of traditional electromagnetic reversing valves is mostly three positions, making it difficult to achieve multi-way conduction and commutation. At the same time, the increase in the number of positions and passages of the reversing valve requires high environmental conditions for the use of the reversing valve, and it is easy for the sealing parts to age and be damaged. Moreover, since electromagnetic reversing valves are mostly spool valves, the frictional force generated on the sliding surface is large, the action is not sensitive, and it is easy to wear. In order to streamline the flow control system and achieve multi-way conduction and commutation, the traditional approach is usually to use an integrated valve group or valve block, which can integrate the hydraulic system to a certain extent and has the advantages of small occupied space, high efficiency, and simple and fast maintenance.

[0003] However, since the integrated valve group or valve block usually combines multiple single valves to work together, with the increase in the number of positions and passages that the integrated valve group needs to switch in the hydraulic system, it will lead to a complex structure of the integrated valve group, especially poor versatility and flexibility, and it cannot meet the free switching between multiple hydraulic systems or complex hydraulic systems. At the same time, it will increase the manufacturing and maintenance costs. Summary of the Invention

[0004] To solve the problems mentioned in the above background art, the purpose of the present invention is to provide a multi-position six-way integrated rotary valve based on double-sided rotation, which realizes the multi-position switching and multi-pipeline commutation and conduction of the rotary valve through the misaligned rotation of the upper and lower valve plates, and streamlines the hydraulic control system.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A multi-position six-way integrated rotary valve based on double-sided rotation includes an upper rotating shaft, an upper valve cover, a compression spring I, an upper valve plate, a valve port receiving plate, a valve core, a lower valve plate, a compression spring II, a lower valve cover, and a lower rotating shaft;

[0007] The upper valve cover and the valve port receiving plate are coaxially and firmly connected, the valve port receiving plate and the upper part of the valve core are coaxially and firmly connected, and the lower valve cover and the lower part of the valve core are coaxially and firmly connected; the lower surface of the upper valve plate is attached to the surface of the valve port receiving plate under the action of the compression spring I and forms a rotary friction pair with the surface of the valve port receiving plate, and the upper surface of the lower valve plate is attached to the lower surface of the valve core under the action of the compression spring II and forms a rotary friction pair with the lower surface of the valve core;

[0008] On the upper surface of the valve port receiving plate, there are successively provided through receiving ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ along the same circumference. The circumferential interval angles between receiving ports Ⅰ, Ⅱ, and Ⅲ are 45°. The circumferential interval angles between receiving ports Ⅳ, Ⅴ, and Ⅵ are 45°. The circumferential angle between receiving port Ⅰ and receiving port Ⅵ is 90°. The circumferential angle between receiving port Ⅲ and receiving port Ⅳ is 90°. Valve ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ are successively provided on the valve port receiving plate in the circumferential direction. Valve ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ are respectively radially corresponding to and communicating with receiving ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ. A positioning hole is provided in the middle of the upper surface of the valve port receiving plate.

[0009] On the upper surface of the valve core, there are successively provided upper oil ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ along the same circumference. On the lower surface of the valve core, there are successively provided lower oil ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ along the same circumference. Upper oil ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ are symmetrically distributed with respect to the valve core with respect to lower oil ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ respectively. Upper oil ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ are respectively corresponding and communicating with receiving ports Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ provided on the upper surface of the valve port receiving plate. The diameters of the upper and lower oil ports and the receiving ports are the same. The distances from the centers of the upper and lower oil ports and the receiving ports to the axis of the valve body are the same.

[0010] Flow channels Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, and Ⅵ are provided inside the valve core. Flow channel Ⅰ connects upper oil port Ⅰ and lower oil port Ⅵ. Flow channel Ⅱ connects upper oil port Ⅱ and lower oil port Ⅱ. Flow channel Ⅲ connects upper oil port Ⅲ and lower oil port Ⅳ. Flow channel Ⅳ connects upper oil port Ⅳ and lower oil port Ⅲ. Flow channel Ⅴ connects upper oil port Ⅴ and lower oil port Ⅴ. Flow channel Ⅵ connects upper oil port Ⅵ and lower oil port Ⅰ.

[0011] On the surface of the upper valve plate, upper notch Ⅰ and upper notch Ⅱ are provided. The central angle corresponding to the arc where upper notch Ⅰ is located is 90°. Upper notch Ⅰ can exactly cover receiving ports Ⅰ, Ⅱ, and Ⅲ at the same time. Upper notch Ⅱ is exactly the same as upper notch Ⅰ in structure. A through hole is provided in the middle of the upper valve plate for connecting the upper rotating shaft. The lower valve plate is exactly the same as the upper valve plate in structure. Lower notch Ⅰ and lower notch Ⅱ are provided on the surface of the lower valve plate.

[0012] The beneficial effects of the present invention:

[0013] (1) A multi - position six - way integrated rotary valve based on double - sided rotation proposed by the present invention realizes multi - digit switching and six - path multiple conduction modes through the misaligned rotational movement of the upper and lower valve plates relative to the valve core and the special staggered flow - path structure inside the valve core, and can freely achieve one - way conduction of two paths or multi - path mixed connection in the six - path, streamlining the fluid control system.

[0014] (2) Compared with traditional hydraulic valve groups or valve blocks, a multi - position six - way integrated rotary valve based on double - sided rotation proposed by the present invention has good versatility and application flexibility, and can reduce manufacturing, maintenance, and operation costs at the same time.

[0015] (3) A multi - position six - way integrated rotary valve based on double - sided rotation proposed by the present invention simplifies and integrates the control of complex hydraulic systems, and the control process is stable and reliable, with a compact structure, effectively improving space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further explains the present invention with reference to the drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a sectional view of the structure of the present invention;

[0019] Figure 3 is a schematic diagram of the valve - port receiving plate structure of the present invention;

[0020] Figure 4 is a schematic diagram of the valve - core structure of the present invention;

[0021] Figure 5 is a schematic diagram of the internal flow - path distribution of the valve core of the present invention;

[0022] Figure 6 is a schematic diagram of the upper valve - plate structure of the present invention;

[0023] Figure 7 is a schematic diagram of the mating position of the upper and lower valve plates in the first valve position;

[0024] (a) is a schematic diagram of the mating of the valve - port receiving plate and the upper valve plate;

[0025] (b) is a schematic diagram of the mating of the valve core and the lower valve plate;

[0026] Figure 8 is a schematic diagram of the mating position of the upper and lower valve plates in the second valve position;

[0027] (a) is a schematic diagram of the mating of the valve - port receiving plate and the upper valve plate;

[0028] (b) is a schematic diagram of the mating of the valve core and the lower valve plate;

[0029] Figure 9 Schematic diagram of the mating position of the upper and lower valve plates at the third valve position;

[0030] (a) Schematic diagram of the mating of the valve port receiving plate and the upper valve plate;

[0031] (b) Schematic diagram of the mating of the valve core and the lower valve plate.

[0032] In the figure: 1 - upper rotating shaft, 2 - upper valve cover, 3 - compression spring I, 4 - upper valve plate, 41 - upper notch I, 42 - upper notch II, 43 - through hole, 5 - valve port receiving plate, 501 - valve port I, 502 - valve port II, 503 - valve port III, 504 - valve port IV, 505 - valve port V, 506 - valve port VI, 507 - positioning hole, 511 - receiving port I, 512 - receiving port II, 513 - receiving port III, 514 - receiving port IV, 515 - receiving port V, 516 - receiving port VI, 6 - valve core, 601 - lower oil port I, 602 - lower oil port II, 603 - lower oil port III, 604 - lower oil port IV, 605 - lower oil port V, 606 - lower oil port VI, 611 - upper oil port I, 612 - upper oil port II, 613 - upper oil port III, 614 - upper oil port IV, 615 - upper oil port V, 616 - upper oil port VI, 621 - flow channel I, 622 - flow channel II, 623 - flow channel III, 624 - flow channel IV, 625 - flow channel V, 626 - flow channel VI, 7 - lower valve plate, 71 - lower notch I, 72 - lower notch II, 8 - compression spring II, 9 - lower valve cover, 10 - lower rotating shaft. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "through hole", "upper", "lower", "central angle", "axial direction", "circumferential direction", etc. indicating the orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0035] As Figure 1 and Figure 2 shown, a multi-position six-way integrated rotary valve based on double-sided rotation includes an upper rotating shaft 1, an upper valve cover 2, a compression spring I 3, an upper valve plate 4, a valve port receiving plate 5, a valve core 6, a lower valve plate 7, a compression spring II 8, a lower valve cover 9, and a lower rotating shaft 10;

[0036] The upper valve cover 2 and the valve port receiving plate 5 are coaxially and firmly connected. The valve port receiving plate 5 and the upper part of the valve core 6 are coaxially and firmly connected. The lower valve cover 9 and the lower part of the valve core 6 are coaxially and firmly connected. The lower surface of the upper valve plate 4 is in contact with the surface of the valve port receiving plate 5 under the action of the compression spring I 3 and forms a rotary friction pair with the surface of the valve port receiving plate. The upper surface of the lower valve plate 7 is in contact with the lower surface of the valve core 6 under the action of the compression spring II 8 and forms a rotary friction pair with the lower surface of the valve core 6.

[0037] As Figure 3 shown, on the upper surface of the valve port receiving plate 5, through interfaces I 511, II 512, III 513, IV 514, V 515, and VI 516 are successively arranged along the same circumference. The circumferential interval angles between interfaces I 511, II 512, and III 513 are 45°. The circumferential interval angles between interfaces IV 514, V 515, and VI 516 are 45°. The circumferential angle between interface I 511 and interface VI 516 is 90°. The circumferential angle between interface III 513 and interface IV 514 is 90°. Valve ports I 501, II 502, III 503, IV 504, V 505, and VI 506 are successively arranged in the circumferential direction of the valve port receiving plate 5. Valve ports I 501, II 502, III 503, IV 504, V 505, and VI 506 are respectively radially corresponding to and interconnected with interfaces I 511, II 512, III 513, IV 514, V 515, and VI 516. A positioning hole 507 is provided in the middle of the upper surface of the valve port receiving plate 5.

[0038] As Figure 3 and Figure 4As shown in the figure, on the upper surface of the valve core 6, oil inlets I 611, II 612, III 613, IV 614, V 615, and VI 616 are successively arranged along the same circumference. On the lower surface of the valve core 6, oil outlets I 601, II 602, III 603, IV 604, V 605, and VI 606 are successively arranged along the same circumference. Oil inlets I 611, II 612, III 613, IV 614, V 615, and VI 616 are symmetrically distributed with respect to the valve core 6 with oil outlets I 601, II 602, III 603, IV 604, V 605, and VI 606 respectively. Oil inlets I 611, II 612, III 613, IV 614, V 615, and VI 616 are respectively in corresponding communication with the receiving ports I 511, II 512, III 513, IV 514, V 515, and VI 516 opened on the upper surface of the valve port receiving plate 5. The upper and lower oil ports and the receiving ports are of the same size. The distances from the centers of the upper and lower oil ports and the receiving ports to the axis of the valve body are the same.

[0039] As Figure 5 shown, inside the valve core 6, flow channels I 621, II 622, III 623, IV 624, V 625, and VI 626 are provided. Flow channel I 621 connects oil inlet I 611 and oil outlet VI 606. Flow channel II 622 connects oil inlet II 612 and oil outlet II 602. Flow channel III 623 connects oil inlet III 613 and oil outlet IV 604. Flow channel IV 624 connects oil inlet IV 614 and oil outlet III 603. Flow channel V 625 connects oil inlet V 615 and oil outlet V 605. Flow channel VI 626 connects oil inlet VI 616 and oil outlet I 601.

[0040] As Figure 3 and Figure 6 shown, on the surface of the upper valve plate 4, upper notch I 41 and upper notch II 42 are provided. The central angle corresponding to the arc where upper notch II 42 is located is 90°. Upper notch II 42 can exactly cover receiving ports I 511, II 512, and III 513 at the same time. Upper notch II 42 and upper notch I 41 are completely the same in structure. A through hole 43 is provided in the middle of the upper valve plate 4 for connecting the upper rotating shaft. The lower valve plate is completely the same in structure as the upper valve plate 4, and lower notch I and lower notch II are provided on the surface of the lower valve plate.

[0041] To more clearly describe the working principle of the present invention, the implementation methods of the first to third valve positions are described as follows:

[0042] First valve position: As Figure 3 , Figure 5 and Figure 7As shown, when the upper valve plate and the lower valve plate rotate respectively, the upper notch Ⅰ41, upper notch Ⅱ42, lower notch Ⅰ71, and lower notch Ⅱ72 are located at the positions shown in the figure. The receiving port Ⅴ515 and the receiving port Ⅵ516 are communicated, the receiving port Ⅱ512 and the receiving port Ⅲ513 are communicated, and the lower notch Ⅰ71 and the lower notch Ⅱ72 are in the locked state. At this time, the valve port Ⅴ505 and the valve port Ⅵ506 are communicated, the valve port Ⅱ502 and the valve port Ⅲ503 are communicated, and the valve port Ⅰ501 and the valve port Ⅳ504 are in the locked state. This is the first valve position.

[0043] Second valve position: As Figure 3 , Figure 5 and Figure 8 shown, when the upper valve plate and the lower valve plate rotate respectively, the upper notch Ⅰ41, upper notch Ⅱ42, lower notch Ⅰ71, and lower notch Ⅱ72 are located at the positions shown in the figure. The receiving port Ⅰ511 and the receiving port Ⅵ516 are communicated, the lower oil port Ⅴ605 and the lower oil port Ⅵ606 are communicated. Under the action of the flow channel Ⅰ621, the receiving port Ⅰ511 and the lower oil port Ⅵ606 are communicated. Therefore, the lower oil port Ⅴ605 and the receiving port Ⅰ511 are communicated. Under the action of the flow channel Ⅴ625, the lower oil port Ⅴ605 and the receiving port Ⅴ515 are communicated. Therefore, the receiving port Ⅰ511 and the receiving port Ⅴ515 are communicated. In summary, it can be known that the receiving port Ⅰ511, the receiving port Ⅴ515, and the receiving port Ⅵ516 are mutually communicated, that is, the valve port Ⅰ501, the valve port Ⅴ505, and the valve port Ⅵ506 are mutually communicated. Similarly, the valve port Ⅱ502, the valve port Ⅲ503, and the valve port Ⅳ504 are mutually communicated. This is the second valve position.

[0044] Third valve position: As Figure 3 , Figure 5 and Figure 9 shown, when the upper valve plate and the lower valve plate rotate respectively, the upper notch Ⅰ41, upper notch Ⅱ42, lower notch Ⅰ71, and lower notch Ⅱ72 are located at the positions shown in the figure. The receiving port Ⅳ514, the receiving port Ⅴ515, and the receiving port Ⅵ516 are mutually communicated, and the lower notch Ⅰ71 and the lower notch Ⅱ72 are in the locked state. At this time, the valve port Ⅳ504, the valve port Ⅴ505, and the valve port Ⅵ506 are mutually communicated. This is the third valve position.

[0045] In the above embodiments, a multi-position six-way integrated rotary valve based on double-sided rotation according to the present invention has 14 different conducting valve positions, including a locked valve position, and the conducting modes are diversified.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A multi-position six-way integrated rotary valve based on double-sided rotation, comprising an upper rotating shaft (1), an upper valve cover (2), a compression spring I (3), an upper valve plate (4), a valve port receiving plate (5), a valve core (6), a lower valve plate (7), a compression spring II (8), a lower valve cover (9), and a lower rotating shaft (10); The upper valve cover (2) and the valve port receiving plate (5) are coaxially and firmly connected. The valve port receiving plate (5) and the upper part of the valve core (6) are coaxially and firmly connected. The lower valve cover (9) and the lower part of the valve core (6) are coaxially and firmly connected. The lower surface of the upper valve plate (4) is attached to the surface of the valve port receiving plate (5) under the action of the compression spring I (3) and forms a rotary friction pair with the surface of the valve port receiving plate. The upper surface of the lower valve plate (7) is attached to the lower surface of the valve core (6) under the action of the compression spring II (8) and forms a rotary friction pair with the lower surface of the valve core (6); The upper surface of the valve port receiving plate (5) is successively provided with through receiving ports I (511), receiving ports II (512), receiving ports III (513), receiving ports IV (514), receiving ports V (515), and receiving ports VI (516) along the same circumference. The circumferential angular intervals between receiving ports I (511), receiving ports II (512), and receiving ports III (513) are 45°. The circumferential angular intervals between receiving ports IV (514), receiving ports V (515), and receiving ports VI (516) are 45°. The circumferential angle between receiving ports I (511) and receiving ports VI (516) is 90°. The circumferential angle between receiving ports III (513) and receiving ports IV (514) is 90°. The valve port receiving plate (5) is successively provided with valve ports I (501), valve ports II (502), valve ports III (503), valve ports IV (504), valve ports V (505), and valve ports VI (506) in the circumferential direction. The valve ports I (501), valve ports II (502), valve ports III (503), valve ports IV (504), valve ports V (505), and valve ports VI (506) are respectively radially corresponding to and communicating with receiving ports I (511), receiving ports II (512), receiving ports III (513), receiving ports IV (514), receiving ports V (515), and receiving ports VI (516). A positioning hole (507) is provided in the middle of the upper surface of the valve port receiving plate (5); On the upper surface of the spool (6), oil inlets I (611), II (612), III (613), IV (614), V (615), and VI (616) are successively arranged along the same circumference. On the lower surface of the spool (6), oil inlets I (601), II (602), III (603), IV (604), V (605), and VI (606) are successively arranged along the same circumference. Oil inlets I (611), II (612), III (613), IV (614), V (615), and VI (616) are symmetrically distributed with respect to the spool (6) with oil inlets I (601), II (602), III (603), IV (604), V (605), and VI (606) respectively. Oil inlets I (611), II (612), III (613), IV (614), V (615), and VI (616) are respectively in corresponding communication with receiving ports I (511), II (512), III (513), IV (514), V (515), and VI (516) opened on the upper surface of the valve port receiving plate (5). The oil inlets I (611), II (612), III (613), IV (614), V (615), and VI (616), oil inlets I (601), II (602), III (603), IV (604), V (605), and VI (606), receiving ports I (511), II (512), III (513), IV (514), V (515), and receiving port VI (516) are all of the same size. The distances from the centers of the oil inlets I (611), II (612), III (613), IV (614), V (615), and VI (616), oil inlets I (601), II (602), III (603), IV (604), V (605), and VI (606), receiving ports I (511), II (512), III (513), IV (514), V (515), and receiving port VI (516) to the axis of the valve body are all the same. The valve core (6) is internally provided with a flow channel Ⅰ (621), a flow channel Ⅱ (622), a flow channel Ⅲ (623), a flow channel Ⅳ (624), a flow channel Ⅴ (625), and a flow channel Ⅵ (626); the flow channel Ⅰ (621) communicates with the upper oil port Ⅰ (611) and the lower oil port Ⅵ (606), the flow channel Ⅱ (622) communicates with the upper oil port Ⅱ (612) and the lower oil port Ⅱ (602), the flow channel Ⅲ (623) communicates with the upper oil port Ⅲ (613) and the lower oil port Ⅳ (604), the flow channel Ⅳ (624) communicates with the upper oil port Ⅳ (614) and the lower oil port Ⅲ (603), the flow channel Ⅴ (625) communicates with the upper oil port Ⅴ (615) and the lower oil port Ⅴ (605), and the flow channel Ⅵ (626) communicates with the upper oil port Ⅵ (616) and the lower oil port Ⅰ (601); Two-way one-way conduction or multi-way mixed connection in the six-way is realized through the misaligned rotational movement of the upper valve plate (4) and the lower valve plate (7) relative to the valve core (6) and the staggered flow channel structure inside the valve core (6).

2. The multi-position six-way integrated rotary valve based on double-sided rotation according to claim 1, wherein The upper valve plate (4) is provided with an upper notch Ⅰ (41) and an upper notch Ⅱ (42) on its surface. The central angle corresponding to the arc where the upper notch Ⅱ (42) is located is 90°. The upper notch Ⅱ (42) can exactly cover the receiving interfaces Ⅰ (511), Ⅱ (512), and Ⅲ (513) at the same time. The upper notch Ⅱ (42) and the upper notch Ⅰ (41) are exactly the same in structure; a through hole (43) is provided in the middle of the upper valve plate (4) for connecting the upper rotating shaft; the lower valve plate is exactly the same in structure as the upper valve plate (4), and the lower notch Ⅰ and the lower notch Ⅱ are provided on the surface of the lower valve plate.

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