阅读说明：本技术 一种旋转式连续换向控制阀 (Rotary continuous reversing control valve ) 是由 王云 于 2019-03-05 设计创作，主要内容包括：一种旋转式连续换向控制阀,包括阀体、驱动端阀盖、末端阀盖、阀芯组件、轴向紧固件、轴向间隙调整垫片和密封件,所述阀芯组件由旋转芯轴、轴承、平键和两个相对装配的阀芯组成,所述阀芯设置有若干组换向通道,所述阀体设置有输入接口P和若干输出接口,所述驱动端阀盖设置有导通孔和排放口R,所述末端阀盖设置有导通孔和排放口S；本发明结构设计合理,通过旋转芯轴带动阀芯转动切换导通孔和排放口之间的导通状态,得到若干输出接口之间的压差转换,实现管路切换从而驱动执行器件运动控制的目的,并连续工作无需休息,可以极大的提高许多机械的效率,满足必须使用旋转式连续换向控制阀机械设备的需求。(A rotary continuous reversing control valve comprises a valve body, a drive end valve cover, a tail end valve cover, a valve core assembly, an axial fastener, an axial gap adjusting gasket and a sealing piece, wherein the valve core assembly consists of a rotary mandrel, a bearing, a flat key and two oppositely assembled valve cores; the invention has reasonable structural design, the valve core is driven by the rotary mandrel to rotate to switch the conduction state between the conduction hole and the discharge port, the pressure difference conversion among a plurality of output interfaces is obtained, the aim of switching pipelines to drive the execution device to control the motion is fulfilled, the continuous work is realized without rest, the efficiency of a plurality of machines can be greatly improved, and the requirement of using the rotary continuous reversing control valve mechanical equipment is met.)

1. A rotary continuous reversing control valve is characterized in that: the valve core assembly comprises a rotary mandrel, a bearing, a flat key and two oppositely assembled valve cores, the valve cores are provided with a plurality of groups of reversing channels, the valve body is provided with an input interface P and a plurality of output interfaces, the drive end valve cover is provided with a conducting hole and a discharge port R, and the tail end valve cover is provided with a conducting hole and a discharge port S.

2. The rotary continuously variable valve as recited in claim 1, wherein: the rotary mandrel drives the valve core to rotate, so that the conduction state between the conduction hole and the discharge port is switched, the pressure difference conversion among the output interfaces is obtained, and the purpose of driving the execution device to control the motion is achieved.

3. The rotary continuously variable valve as recited in claim 1, wherein: the sealing elements are arranged at the radial positions of the two ends of the valve cover of the driving end and the valve cover of the tail end.

4. The rotary continuously variable valve as recited in claim 1, wherein: the tail end valve cover can be replaced by a drive end valve cover, and meanwhile, the lengthened mandrel is used as a double-end input rotary continuous reversing control valve.

Technical Field

The invention relates to a fluid direction control valve, in particular to a rotary type continuous reversing control valve.

Background

The fluid direction control valve is the most important control element in the field of liquid pressure and air pressure, and is mainly used for controlling the make-and-break and direction of fluid among pipelines in a liquid pressure system.

Disclosure of Invention

The invention provides a rotary continuous reversing control valve for solving the problems, which comprises a valve body, a drive end valve cover, a tail end valve cover, a valve core assembly, an axial fastener, an axial clearance adjusting gasket and a sealing element, the valve core assembly consists of a rotary mandrel, a bearing, a flat key and two oppositely assembled valve cores, the valve cores are provided with a plurality of groups of reversing channels, the axial direction of the two oppositely assembled valve core reversing channels deviates a certain angle relative to the radial direction of the axis of the rotary mandrel, the valve body is provided with an input interface P and a plurality of output interfaces, the valve cover of the driving end is provided with a conducting hole and a discharge port R, and is fixedly connected with the valve body through a fastener, the tail end valve cover is provided with a conducting hole and a discharge hole S, and the sealing piece is arranged at the radial positions of the two ends of the valve cover of the driving end and the valve cover of the tail end.

Preferably, the output interface includes an output interface a and an output interface B.

Preferably, the valve core comprises a valve core A and a valve core B, and the structure is completely the same.

The invention has the beneficial effects that: the invention has reasonable structural design, realizes the on-off of the reversing channel, the conducting hole and the discharge hole by driving the valve core to rotate through the rotating mandrel, obtains the pressure difference conversion among a plurality of output interfaces, realizes the aim of switching pipelines so as to drive the execution device to control the motion, does not need to rest when continuously working, can greatly improve the efficiency of a plurality of machines, and meets the requirement of using the mechanical equipment of the rotary type continuous reversing control valve.

Description of the drawings

FIG. 1 is a schematic cross-sectional view of the present invention.

Fig. 2 is a schematic cross-sectional view of the valve core assembly of the present invention.

Fig. 3 is a perspective view of the valve core of the present invention.

Fig. 4 is a perspective view of the end valve cover of the present invention.

Fig. 5 is a perspective view of a drive end valve cover according to the present invention.

FIG. 6 is a schematic view of the direction of fluid flow at the zero rotational angle position of the present patent.

FIG. 7 is a schematic view of the direction of fluid flow for a given number of angular positions of rotation of the present patent.

FIG. 8 is a perspective view of the working condition components of the present invention.

Figure number and name: 1-valve body, 2-end valve cap, 3-valve core component, 4-drive end valve cap, 5-axial fastener, 6-axial clearance adjusting gasket, 7-sealing piece, 8-follow-up roller, 9-assembly line workpiece, 10-executive device, 1.1-input interface P, 1.2-output interface A, 1.3-output interface B, 2.1-end valve cap conducting hole, 2.2-discharge port S, 2.3-end valve cap sealing piece assembling groove, 2.4, end valve cap valve core hole, 2.5-end valve cap flow channel, 3.1-valve core A, 3.2-bearing, 3.3-flat key, 3.4-rotary mandrel, 3.5-valve core B, 3.1.1-reversing blind hole, 3.1.2-straight through hole, 3.1.3-key groove, 3.1.4-mandrel assembling hole, 4.1-drive end valve cap, 3.1-axial clearance adjusting gasket, 3-sealing piece, 2-end valve cap, 3, 4.2-discharge port P, 4.3-driving end valve cover sealing piece assembling groove, 4.4-driving end valve cover valve core hole and 4.5-driving end valve cover flow passage.

Second, detailed description of the invention

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations where mutually exclusive features or steps are mutually exclusive.

Any feature of the present specification may be replaced by another equivalent or alternative feature serving a similar purpose, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in figures 1 and 2, the rotary continuous reversing control valve comprises a valve body (1), a drive end valve cover (4), a tail end valve cover (2), a valve core assembly (3), an axial fastener (5), an axial gap adjusting gasket (6) and a sealing piece (7), wherein the valve core assembly (3) consists of a rotary mandrel (3.4), a bearing (3.2) and two valve cores (3.1), the rotary force of the rotary mandrel (3.4) is synchronously transmitted to the two valve cores (3.1) by using a flat key (3.3), the valve body (1) is provided with an input interface P (1.1) and a plurality of output interfaces, the interfaces are provided with internal thread structures for pipeline connection, the drive end valve cover (4) and the tail end valve cover (2) are fixedly connected with the valve body (1) by using the fastener, the output interfaces comprise an output interface A (1.2) and an output interface B (1.3), the valve core comprises a valve core A (3.4) and a valve core B (3.5).

As shown in fig. 3, the valve core (3.1) is provided with a plurality of groups of circumferentially arranged reversing channels, and each group of reversing channels consists of a reversing blind hole (3.1.1) and a straight through hole (3.1.2); two key grooves (3.1.3) are arranged in a core shaft assembly hole (3.1.4) on the valve core (3.1).

As shown in fig. 2 and 3, the spool a (3.4) and the spool B (3.5) on the spool assembly have the same structure, and a flat key (3.3) and a rotary spool (3.4) are assembled into a revolute pair. The valve core A (3.1) and the valve core B (3.5) are assembled in a relative mode, and the axes of the reversing blind holes (3.1.1) on the valve core A (3.1) are in a coaxial relation with the axes of the straight-through holes (3.1.2) on the valve core B (3.5) which are assembled in a relative mode; meanwhile, on the contrary, the axes of the straight-through holes (3.1.2) on the valve core A (3.1) are in coaxial relation with the axes of the reversing blind holes (3.1.1) on the valve core B (3.5) which are oppositely assembled.

As shown in fig. 4, the end valve cover (2) is provided with an end valve cover via hole (2.1), a discharge port S (2.2), an end valve cover sealing member assembling groove (2.3), an end valve cover valve core hole (2.4) and an end valve cover flow channel (2.5), the central axis of the end valve cover via hole (2.1) and the central axis of the discharge port S (2.2) are located in the same radial section and are arranged in parallel, the discharge port S (2.2) penetrates through the whole end valve cover (2) and is reserved with an internal thread structure discharge connecting interface, the end valve cover via hole (2.1) is only communicated with the end valve cover flow channel (2.5) and does not penetrate through the end valve cover (2), and the end valve cover sealing member assembling groove (2.3) is arranged at the radial position.

As shown in fig. 5, the drive end valve cover (4) is provided with a drive end valve cover via hole (4.1), a discharge port R (4.2), a drive end valve cover sealing piece assembling groove (4.3), a drive end valve cover valve core hole (4.4) and a drive end valve cover flow channel (4.5), the central axis of the drive end valve cover via hole (4.1) and the central axis of the discharge port R (4.2) are located in the same radial section and are arranged in parallel, the discharge port R (4.2) penetrates through the whole drive end valve cover (4) and is reserved with an internal thread structure discharge connection interface, the drive end valve cover via hole (4.1) only communicates with the drive end valve cover flow channel (4.5) and does not penetrate through the drive end valve cover (4), and the drive end valve cover sealing piece.

As shown in fig. 1, 4 and 5, the valve core assembly (3) is limited by the axial fastening piece (5) to move axially, and the axial gap adjusting shim (6) is used for adjusting the gap of each matching plane so as to achieve the purpose of meeting the use requirement of no gap leakage. And both the tail end valve cover (2) and the driving end valve cover (4) are provided with sealing element assembling grooves for assembling sealing elements (7) so as to meet the integral sealing requirement. An input interface P (1.1) on the valve body (1) is communicated with a middle flow passage formed by the two valve cores, an output interface A (1.2) is communicated with a tail end valve cover flow passage (2.5), and an output interface B (1.3) is communicated with a drive end valve cover flow passage (4.5). The central axis of the tail end valve cover through hole (2.1) and the central axis of the drive end valve cover through hole (4.1) are assembled in a coaxial mode, and the central axis of the discharge port S (2.2) and the central axis of the discharge port R (4.2) are assembled in a coaxial mode. The valve core assembly (3) is assembled on the tail end valve cover valve core hole (2.4) and the drive end valve cover valve core hole (4.4), and the rotary mandrel (3.4) penetrates through the drive end valve cover (4) and extends to the outside of the valve body (1).

As shown in fig. 3, 4, 5, and 6, when the rotary mandrel (3.4) is at a designated position, that is, when the through hole (3.1.2) on the valve core a (3.1) is at the position of the drive end valve cover through hole (4.1), the high-pressure fluid of the input port P (1.1) enters the drive end valve cover flow passage (4.5) through the through hole (3.1.2) and the drive end valve cover through hole (4.1) and is then discharged from the output port B (1.3); meanwhile, the reversing blind hole (3.1.1) on the opposite valve core B (3.5) is positioned at the positions of the tail end valve cover through hole (2.1) and the discharge hole S (2.2) of the tail end valve cover (2), and high-pressure fluid of the output interface A (1.2) is discharged from the discharge hole S (2.2) after passing through the tail end driving flow channel (2.5), the tail end valve cover through hole (2.1) and the reversing blind hole (3.1.1).

As shown in fig. 3, 4, 5, and 7, when the rotary mandrel (3.4) rotates a certain angle, i.e. when the through hole (3.1.2) on the valve core B (3.5) is located at the position of the end bonnet conducting hole (2.1), the high-pressure fluid of the input port P (1.1) enters the end bonnet flow channel (2.5) through the through hole (3.1.2) and the end bonnet conducting hole (2.1) and then is discharged from the output port a (1.2); meanwhile, relative to the positions of a drive end valve cover through hole (4.1) and a discharge hole B (2.2) of a drive end valve cover (4) where a reversing blind hole (3.1.1) on a valve core A (3.1) is located, high-pressure fluid of an output interface A (1.2) is discharged from a discharge hole R (4.2) after passing through a drive end drive flow channel (4.5), the drive end valve cover through hole (4.1) and the reversing blind hole (3.1.1).

As shown in fig. 8, the follow-up roller (8) and the rotary mandrel (3.4) are assembled and fixed by using a fastener, the follow-up roller (9) is driven by the assembly line workpiece (9) to rotate, and meanwhile, the roller (9) drives the valve core assembly (3) to rotate, so that the fluid directions of the output interface a (1.2) and the output interface B (1.3) are continuously switched, and the execution device (10) is driven to move.

The rotary core shaft switching valve is reasonable in structural design, the valve core is driven by the rotary core shaft to rotate to realize the on-off of the reversing channel, the conducting hole and the discharging hole, the switching communication of pipelines is realized, and the switching efficiency is determined by the number of the reversing channels of the rotary core shaft and the input rotating speed of the rotary valve core. The mechanical structure can convert linear motion into reciprocating motion by adding the follower, simultaneously meets the requirement of converting active rotary input into the reciprocating motion, and can replace a tail end valve cover with a drive end valve cover, and the lengthened mandrel is used as a double-end drive or an intermediate connection valve.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the embodiments described above, and it will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention.