CN217401781U

CN217401781U - Rotary transposition multi-way valve

Info

Publication number: CN217401781U
Application number: CN202221440749.4U
Authority: CN
Inventors: 吕玉新
Original assignee: Jiashan Superpower Tools Co Ltd
Current assignee: Jiashan Superpower Tools Co Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-09
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a rotatory transposition multiple unit valve, on the basis of original tribit five-way valve, the second working fluid port of same intercommunication valve opening has been set up on the plane of the axis perpendicular to valve rod axis of the working fluid port of valve body, thereby switch the intercommunication of different working fluid ports through the rotation of control lever control valve rod, then connect different hydro-cylinders at different working fluid ports, in order to reach the function that uses two working oil cylinders of a control valve control, furtherly, can change the flow that hydraulic oil passes through the working fluid port through the size control to different working fluid ports, thereby realize that a control valve exports the function of different power through switching the control lever.

Description

Rotary transposition multi-way valve

Technical Field

The utility model relates to a hydrovalve field especially relates to a rotatory transposition multiple unit valve.

Background

The hydraulic log splitter needs the hydro-cylinder to have different output in order to change the propulsion speed of hydro-cylinder when facing different timber, control different hydro-cylinders then realize through different hydrovalves, a hydrovalve can only correspond an output among the prior art, consequently need have a plurality of hydrovalves when switching the hydro-cylinder of different output, and a plurality of hydraulic pressure valves have then led to the fact increase on the cost, the most fatal design of a plurality of oil circuits leads to the increase of product volume and circuit, the complexity of assembly has also been improved simultaneously, consequently, it is necessary to design the hydraulic pressure valve of a steerable a plurality of hydro-cylinders.

Disclosure of Invention

In order to solve the problem, the utility model provides a by the rotatory transposition multiple unit valve of two hydro-cylinders of a hydrovalve control.

In order to achieve the purpose, the rotary transposition multi-way valve comprises a valve body and a valve rod, a plurality of oil cavities, valve holes communicated with the oil cavities, an oil inlet, an oil return port and a working oil port communicated with the corresponding oil cavities are formed in the valve body, a valve rod flow passage is arranged in the valve rod, the valve rod can axially move and rotate in the valve hole to conduct or stop the corresponding oil cavity, thereby the rotary transposition multi-way valve is switched among different working positions, the working position of the rotary transposition multi-way valve comprises a middle position, the hydraulic oil of the middle position rotary reversing multi-way valve can return oil, the working oil port comprises a first working oil port and a second working oil port, the valve body is provided with the second working oil port which is also communicated with the valve hole on the plane of which the axis of the first working oil port is vertical to the axis of the valve rod, and the valve rod switches the first working oil port or the second working oil port back and forth to be in a working state through rotation in the valve hole. The design of the two working oil ports enables the rotary transposition multi-way valve to control the two oil cylinders through a single control valve, the switching of the working states of the first working oil port and the second working oil port is realized by an operator through the communication between the valve rod flow passage on the rotary valve rod and the two working oil ports, and when one of the working oil ports is in the working state, the other working oil port is in the closing state.

The oil cavities are three in number, the first working oil port comprises a first front oil port and a first rear oil port, the second working oil port comprises a second front oil port and a second rear oil port, and the oil return port comprises a first oil return port and a second oil return port, so that the working requirement of selecting one of two ways for isolation control is met.

The valve rod flow passage comprises a first valve rod flow passage and a second valve rod flow passage, the first valve rod flow passage is communicated with the oil inlet and the first front oil port or the second front oil port when the valve rod is switched from the middle position to other working positions, and the second valve rod flow passage is communicated with the oil inlet and the first rear oil port or the second rear oil port when the valve rod is switched from the middle position to the working position opposite to the working position. The valve rod flow passage is used for constructing an oil passage, the first valve rod flow passage and the second valve rod flow passage are communicated with different oil passages and respectively correspond to a front position or a rear position on the front side and the rear side of a middle position in a working position of the multi-way valve, the front position and the rear position respectively control ejection or retraction of the oil cylinder, and the valve rod flow passage corresponding to the other position is in a stop state when one of the front position and the rear position is in a working state.

The first valve rod flow passage comprises a first radial flow passage and a first axial flow passage, the first axial flow passage is an axial blind hole at one end of the valve rod, and the first radial flow passage is two spaced through holes which radially penetrate through the first axial flow passage and the valve rod; the second valve rod flow passage comprises a second radial flow passage and a second axial flow passage, the second axial flow passage is an axial blind hole at one end of the valve rod opposite to the first valve rod flow passage, and the second radial flow passage is two spaced through holes which radially penetrate through the second axial flow passage and the valve rod; when the valve rod is positioned at the middle position, the through holes on the first radial flow passage and the second radial flow passage are communicated in the oil cavity at the middle position. When the multi-way valve is in the middle position, the position of the valve rod corresponds to the oil cavity in the middle position of the three oil cavities, and the multi-way valve returns oil directly at the moment.

The valve rod is fixedly connected with a shifting fork, the shifting fork is hinged with an operating rod at one end far away from the valve rod, and the operating rod is perpendicular to the axial connection of the valve rod. The valve rod rotates through the operating lever to control the shifting fork to rotate, and the operating lever perpendicular to the valve rod is used for establishing a lever, so that the valve rod is rotated more labor-saving.

The valve body is connected with an operating support on the same side of the operating rod, a ball head is arranged at one end of the operating rod, an arc-shaped groove is formed in the operating support, an I-shaped baffle is connected to the operating support, an I-shaped groove corresponding to the first oil inlet and the second oil inlet in position and stroke is formed in the I-shaped baffle, a rod body of the operating rod penetrates through the I-shaped groove, and the ball head is arranged in the arc-shaped groove and can slide in the arc-shaped groove. The operating rod rotates by taking the shifting fork as a fulcrum, the ball head is matched with the arc-shaped groove, the rotating track of the operating rod is limited, the rotating stability of the operating rod is improved, the rod body of the operating rod is pulled back and forth in the I-shaped groove, the I-shaped groove not only effectively ensures the formation of the operating rod, but also provides visual guidance for an operator, the operating rod is positioned in the middle position at the short vertical position in the middle of the I-shaped groove, the operating rod switches the corresponding working oil cylinder back and forth in the middle position, and the two long transverse positions above and below the I-shaped groove correspond to different working positions of the multi-way valve.

The valve rod is fixedly connected with a positioning oil plug in a flow channel on one side of the shifting fork, the positioning oil plug is provided with a positioning hole at one end close to the shifting fork, a positioning conical core is arranged between the positioning oil plug and the shifting fork, a positioning column matched with the positioning hole is arranged on the positioning conical core, a positioning spring is arranged between the positioning conical core and the shifting fork, a ball hole is arranged between the positioning conical core and the positioning oil plug, and a positioning ball matched with the diameter of the ball hole is arranged in the ball hole. When the valve switches the working position in the front and the back, the valve rod is positioned by the cooperation between the positioning ball and the shallow ball groove, the positioning ball is converted into the radial pressure of the positioning ball by the axial thrust of the positioning conical core by the positioning spring, and the positioning ball is extruded in the shallow ball groove.

A further scheme is, the valve rod be connected with straight oily stifled in the runner of the opposite end of shift fork one end, the valve body is connected with the rear end cap in the stifled one side of straight oil, be equipped with the clamp plate between rear end cap and the valve body, be equipped with the hole that holds the valve rod on the clamp plate, the clamp plate is equipped with the spring holder on one side of being close to the rear end cap, the spring holder cup joints on the valve rod, the valve rod is equipped with a circular bead on the outer lane of straight oily stifled one side, be equipped with the rack of frame on the circular bead on the spring holder, the cover is equipped with a reset spring between spring holder and the rear end cap. The pressure of the return spring is transmitted to a shoulder matched with the stand through the stand on the spring seat, and the shoulder is arranged on the valve rod, so that the thrust to the valve rod is formed, the thrust helps the positioning ball extruded in the shallow ball groove to be more easily separated, and the front-back swing operating rod is easier.

Drawings

FIG. 1 is a hydraulic operation schematic diagram of embodiment 1;

FIG. 2 is an isometric view of embodiment 1;

FIG. 3 is an isometric view from another angle of FIG. 2;

FIG. 4 is a vertical cross-section of FIG. 2;

FIG. 5 is a horizontal cross-sectional view of FIG. 2;

fig. 6 is a schematic structural view of the valve body in embodiment 1;

FIG. 7 is a cross-sectional view of the structure of FIG. 6;

FIG. 8 is a schematic view of the structure of a valve stem in embodiment 1;

FIG. 9 is a cross-sectional view of the structure of FIG. 8;

FIG. 10 is an operation diagram of example 1;

fig. 11 is a schematic diagram of switching between different working oil ports in embodiment 1.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1.

As shown in fig. 1-5, the rotary transposition multi-way valve described in this embodiment includes a valve body 1 and a valve rod 2, a plurality of oil cavities 11, valve holes 12 communicating the oil cavities 11, and an oil inlet P, an oil return port T, and a working oil port AB communicating with the corresponding oil cavities 11 are formed in the valve body 1, a valve rod flow passage 21 is formed in the valve rod 2, and the valve rod 2 can axially move and rotate in the valve holes 12 to open or close the corresponding oil cavities 11, so that the rotary transposition multi-way valve is switched between different working positions, the working position of the rotary transposition multi-way valve includes a middle position where hydraulic oil of the rotary reversing multi-way valve can return, the working oil port AB includes a first working oil port and a second working oil port, and the valve body 1 sets a second working oil port communicating with the valve hole 12 on a plane where an axis of the first working oil port is perpendicular to an axis of the valve rod 2, and the valve rod 2 switches the first working oil port or the second working oil port back and forth to be in a working state through rotation in the valve hole 12.

As shown in fig. 6 and 7, the number of the oil chambers 11 is three, the first working oil port includes a first front oil port a1 and a first rear oil port B1, the second working oil port includes a second front oil port a2 and a second rear oil port B2, and the oil return port T includes a first oil return port T1 and a second oil return port T2.

As shown in fig. 7, 8 and 9, the valve rod flow passage 21 includes a first valve rod flow passage 211 and a second valve rod flow passage 212, the first valve rod flow passage 211 communicates the oil inlet P with the first front oil port a1 or the second front oil port a2 when the valve rod 2 is switched from the middle position to the other working positions, and the second valve rod flow passage 212 communicates the oil inlet P with the first rear oil port B1 or the second rear oil port B2 when the valve rod 2 is switched from the middle position to the working position opposite to the working position. The first valve rod flow passage 211 comprises a first radial flow passage 211a and a first axial flow passage 211b, the first axial flow passage 211b is an axial blind hole at one end of the valve rod 2, and the first radial flow passage 211a is two spaced through holes which radially penetrate through the first axial flow passage 211b and the valve rod 2; the second valve stem flow passage 212 comprises a second radial flow passage 212a and a second axial flow passage 212b, the second axial flow passage 212b is an axial blind hole at one end of the valve stem 2 opposite to the first valve stem flow passage 211, and the second radial flow passage 212a is two spaced through holes which radially penetrate through the second axial flow passage 212b and the valve stem; when the valve rod 2 is in the middle position, the through holes of the first radial flow passage 211a and the second radial flow passage 212a communicate with each other in the oil chamber 11 in the middle position.

As shown in fig. 4, 5, 10 and 11, a shift fork 3 is fixedly connected to one end of the valve rod 2, an operating lever 4 is hinged to one end of the shift fork 3 away from the valve rod 2, and the operating lever 4 is perpendicular to the axial direction of the valve rod 2. The valve body 1 is connected with an operating support 5 on the same side of an operating rod 4, one end of the operating rod 4 is provided with a ball head 41, an arc-shaped groove 51 is arranged in the operating support 5, the operating support 5 is connected with an I-shaped baffle 6, the I-shaped baffle 6 is provided with an I-shaped groove 61 corresponding to the positions and the strokes of a first oil inlet P and a second oil inlet P, a rod body of the operating rod 4 penetrates through the I-shaped groove 61, and the ball head 41 is arranged in the arc-shaped groove 51 and can slide in the arc-shaped groove 51.

As shown in fig. 4 and 5, a housing 52 is disposed on one side of the operating bracket 5 connected to the valve body 1, the housing 52 surrounds one end of the valve rod 2, a valve rod positioning sleeve 71 tightly attached to the valve rod 2 is disposed between the valve rod 2 and the housing 52, a shallow ball groove 711 is disposed on one side of the inner wall of the valve rod positioning sleeve 71 close to the valve body 1, a positioning oil plug 72 is fixedly connected to the valve rod 2 in a flow passage on one side of the shift fork 3, a positioning hole 74 is disposed on one end of the positioning oil plug 72 close to the shift fork 3, a positioning conical core 73 is disposed between the positioning oil plug 72 and the shift fork 3, a positioning post 75 engaged with the positioning hole 74 is disposed on the positioning conical core 73, a positioning spring 76 is disposed between the positioning conical core 73 and the shift fork 3, a ball hole 22 is disposed on the valve rod 2 between the positioning conical core 73 and the positioning oil plug 72, and a positioning ball 77 engaged with the diameter of the ball hole 22 is disposed in the ball hole.

As shown in fig. 4 and 5, the valve rod 2 is connected with the straight oil plug 81 in the flow channel of the opposite end of one end of the shifting fork 3, the valve body 1 is connected with the rear end cover 8 on one side of the straight oil plug 81, a pressing plate 82 is arranged between the rear end cover 8 and the valve body 1, a hole for accommodating the valve rod 2 is formed in the pressing plate 82, a spring seat 83 is arranged on one side of the pressing plate 82 close to the rear end cover 8, the spring seat 83 is sleeved on the valve rod 2, the valve rod 2 is provided with a shoulder 84 on the outer ring of one side of the straight oil plug 81, a rack 85 on the shoulder 84 is arranged on the spring seat 83, and a reset spring 86 is sleeved between the spring seat 83 and the rear end cover 8.

The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting thereof, although the invention is described in detail in the context of the preferred embodiments, which are not intended to limit the invention. Any person skilled in the art should make equivalent embodiments with equivalent changes by using some changes or modifications without departing from the technical scope of the present invention, and any brief introduction modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the technical scope of the present invention.

Claims

1. The utility model provides a rotatory transposition multiple unit valve, includes valve body (1) and valve rod (2), valve body (1) in be formed with a plurality of oil pockets (11), communicate valve opening (12) of these a plurality of oil pockets (11) and with oil inlet (P), oil return opening (T) and the working fluid port (AB) of corresponding oil pocket (11) intercommunication, valve rod (2) in be equipped with valve rod runner (21), and valve rod (2) can be in valve opening (12) axial displacement and rotate in order to switch on or cut off corresponding oil pocket (11) to make this rotatory transposition multiple unit valve switch between different work positions, the work position of rotatory transposition multiple unit valve include the meso-position, the hydraulic oil of rotatory switching-over multiple unit valve can the oil return when this meso-position, its characterized in that, working fluid port (AB) include first working fluid port and second work, valve body (1) set up the second valve opening of same intercommunication (12) on the plane of the axis perpendicular to valve rod (2) axis of first working fluid port Two working oil ports, and the valve rod (2) switches the first working oil port or the second working oil port back and forth into a working state through rotation in the valve hole (12).

2. The rotary index multi-way valve according to claim 1, wherein the number of the oil chambers (11) is three, the first working oil port comprises a first front oil port (A1) and a first rear oil port (B1), the second working oil port comprises a second front oil port (A2) and a second rear oil port (B2), and the oil return port (T) comprises a first oil return port (T1) and a second oil return port (T2).

3. The rotary index multi-way valve according to claim 2, wherein the valve rod flow passage (21) comprises a first valve rod flow passage (211) and a second valve rod flow passage (212), the first valve rod flow passage (211) is communicated with the oil inlet (P) and the first front oil port (A1) or the second front oil port (A2) when the valve rod (2) is switched from the middle position to other working positions, and the second valve rod flow passage (212) is communicated with the oil inlet (P) and the first rear oil port (B1) or the second rear oil port (B2) when the valve rod (2) is switched from the middle position to the working position opposite to the working position.

4. The rotary index multiplex valve as claimed in claim 3, wherein the first valve stem flow passage (211) comprises a first radial flow passage (211a) and a first axial flow passage (211b), the first axial flow passage (211b) is an axial blind hole at one end of the valve stem (2), and the first radial flow passage (211a) is two spaced through holes radially penetrating through the first axial flow passage (211b) and the valve stem (2); the second valve rod flow passage (212) comprises a second radial flow passage (212a) and a second axial flow passage (212b), the second axial flow passage (212b) is an axial blind hole at one end of the valve rod (2) opposite to the first valve rod flow passage (211), and the second radial flow passage (212a) is two spaced through holes which radially penetrate through the second axial flow passage (212b) and the valve rod; when the valve rod (2) is positioned at the middle position, the through holes on the first radial flow passage (211a) and the second radial flow passage (212a) are communicated in the oil cavity (11) at the middle position.

5. The rotary transposition multiple-way valve according to claim 4, characterized in that one end of the valve rod (2) is fixedly connected with a shifting fork (3), one end of the shifting fork (3) far away from the valve rod (2) is hinged with an operating rod (4), and the operating rod (4) is perpendicular to the axial connection of the valve rod (2).

6. The rotary transposition multiport valve according to claim 5, characterized in that the valve body (1) is connected with an operating bracket (5) on the same side of the operating lever (4), a ball head (41) is arranged at one end of the operating lever (4), an arc-shaped groove (51) is arranged in the operating bracket (5), an I-shaped baffle (6) is connected to the operating bracket (5), an I-shaped groove (61) corresponding to the first oil inlet (P) and the second oil inlet (P) in position and stroke is arranged on the I-shaped baffle (6), a rod body of the operating lever (4) penetrates through the I-shaped groove (61), and the ball head (41) is arranged in the arc-shaped groove (51) and can slide in the arc-shaped groove (51).

7. The rotary transposition multi-way valve according to claim 6, wherein the operating bracket (5) is provided with a shell part (52) at one side connected with the valve body (1), the shell part (52) surrounds one end of the valve rod (2), a valve rod positioning sleeve (71) tightly attached to the valve rod (2) is arranged between the valve rod (2) and the shell part (52), one side of the inner wall of the valve rod positioning sleeve (71) close to the valve body (1) is provided with a circle of shallow spherical groove (711), the valve rod (2) is fixedly connected with a positioning oil plug (72) in a flow channel at one side of the shifting fork (3), one end of the positioning oil plug (72) close to the shifting fork (3) is provided with a positioning hole (74), a positioning conical core (73) is arranged between the positioning oil plug (72) and the shifting fork (3), a positioning column (75) matched with the positioning hole (74) is arranged on the positioning conical core (73), and a positioning spring (76) is arranged between the positioning conical core (73) and the shifting fork (3), the valve rod (2) is provided with a ball hole (22) between the positioning conical core (73) and the positioning oil plug (72), and a positioning ball (77) matched with the ball hole in diameter is arranged in the ball hole (22).

8. The rotary transposition multiway valve according to claim 7, wherein the valve rod (2) is connected with a straight oil plug (81) in a flow channel at the opposite end of one end of the shifting fork (3), the valve body (1) is connected with a rear end cover (8) at one side of the straight oil plug (81), a pressing plate (82) is arranged between the rear end cover (8) and the valve body (1), a hole for accommodating the valve rod (2) is formed in the pressing plate (82), a spring seat (83) is arranged at one side of the pressing plate (82) close to the rear end cover (8), the spring seat (83) is sleeved on the valve rod (2), a shoulder (84) is arranged on the outer ring of one side of the straight oil plug (81) of the valve rod (2), a rack (85) erected on the shoulder (84) is arranged on the spring seat (83), and a return spring (86) is sleeved between the spring seat (83) and the rear end cover (8).