CN203114770U - Multi-directional reversing valve based on single-ended oil source management body - Google Patents

Abstract

The utility model discloses a multi-directional reversing valve based on a single-ended oil source management body. The multi-directional reversing valve based on the single-ended oil source management body comprises an oil inlet-and-return body. The oil inlet-and-return body is connected with one or more than one reversing bodies, and the oil inlet-and-return body is provided with a main oil inlet and a main oil return port. The reversing bodies are provided oil inlet channels, oil return channels and unloading channels, wherein the oil return channels and unloading channels are communicated with adjacent reversing valves. The reversing bodies are provided with oil inlets communicated with the oil inlet channels and oil return ports communicated with the oil return channels. The tail ends of the oil inlet channels, the tail ends of the oil return channels and the tail ends of the unloading channels of the reversing bodies located at a tail end are plugged, and the unloading channels in the reserving bodies of the tail end are communicated with the oil return ports. The main oil inlet and the main oil return port are arranged on one oil inlet-and-return body, a sheet body is reduced, the size of the multi-directional reversing valve is made to be reduced, production cost is reduced, and an integration level is improved. An oil source is connected from one end of the multi-directional reversing valve, the structure of the multi-directional reversing valve is made to be more compact, the problems that pipes are easy to collide and break are solved, and reliability of the multi-directional reversing valve is improved.

Description

A kind of multiple directional control valve based on single-ended oil sources management system

Technical field

The utility model relates to a kind of hydrovalve, relates in particular to a kind of hydraulic multichannel conversion valve based on single-ended oil sources management system.

Background technique

At present, known multiple directional control valve is the combination of a plurality of selector valves and Auxiliary valves, mainly is made up of an oil-feed body, a plurality of commutation body and an oil return body, can realize functional requirement according to the different selector valve of different usage requirement assemblings.

Use total filler opening of the most general multiple directional control valve and total return opening respectively on oil-feed body and oil return body, as shown in Figure 5 and Figure 6, each multiple directional control valve needs two auxiliary valve bodies to realize oil-feed and oil return, such multiple directional control valve volume is big, and hydraulic pipe line need connect the line arrangement difficulty from the two ends of multiple directional control valve, and pipeline easily collides with or fractures, increase the rate of fault of multiple directional control valve, also increased cost of material, be unfavorable for the structure optimization of multiple directional control valve.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of compact structure, reliable operation and highly versatile, multiple directional control valve that level of integration is high.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of multiple directional control valve based on single-ended oil sources management system, comprise the oil inlet and oil return body, connect the body that commutates more than or on the described oil inlet and oil return body, described oil inlet and oil return body is provided with total filler opening and total return opening;

Described commutation body is provided with oil inlet passage, drainback passage and the unloading channel that is communicated with the adjacent body that commutates; Be provided with one-way valve and relief valve in the described oil inlet and oil return valve, described total filler opening is communicated with the described oil inlet passage of adjacent described commutation body by described one-way valve, described total return opening directly is communicated with the described drainback passage of adjacent described commutation body, is connected with described relief valve between described total filler opening and the described total return opening; Described total filler opening directly is communicated with the described unloading channel of adjacent described commutation body;

Described commutation body is provided with the filler opening that is communicated with described oil inlet passage and the return opening that is communicated with described drainback passage, also is provided with the actuator port for operating hydraulically operated actuator on the described commutation body; Be positioned at the tail end shutoff of described oil inlet passage, described drainback passage and the described unloading channel of terminal described commutation body, the described unloading channel in the terminal described commutation body and described return opening are communicated with.

Owing to adopted technique scheme, a kind of multiple directional control valve based on single-ended oil sources management system comprises the oil inlet and oil return body, connects the body that commutates more than or on the described oil inlet and oil return body, and described oil inlet and oil return body is provided with total filler opening and total return opening; Described commutation body is provided with oil inlet passage, drainback passage and the unloading channel that is communicated with adjacent described commutation body; Be provided with one-way valve and relief valve in the described oil inlet and oil return body, described total filler opening is communicated with the described oil inlet passage of adjacent described commutation body by described one-way valve, described total return opening directly is communicated with the described drainback passage of adjacent described commutation body, is connected with described relief valve between described total filler opening and the described total return opening; Described total filler opening directly is communicated with the described unloading channel of adjacent described commutation body; Described commutation body is provided with the filler opening that is communicated with described oil inlet passage and the return opening that is communicated with described drainback passage, also is provided with the actuator port for operating hydraulically operated actuator on the described commutation body; Be positioned at the tail end shutoff of described oil inlet passage, described drainback passage and the described unloading channel of terminal described commutation body, the described unloading channel in the terminal described commutation body and described return opening are communicated with; Total filler opening and total return opening are arranged on the oil inlet and oil return body, have reduced by a lamellar body, the volume of multiple directional control valve is reduced, cost of production reduces; Commutation body quantity can increase and decrease as required, adjusts flexibly, can realize multiple difference in functionality; Oil sources connects from an end of multiple directional control valve, not only makes the structure of multiple directional control valve compacter, has also solved the problem that pipeline in use easily collides with and fractures, and has improved the reliability of multiple directional control valve, has avoided the equipment failure that produces because of leakage of oil.

Description of drawings

The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:

Fig. 1 is the utility model embodiment's structural representation;

Fig. 2 is that the utility model embodiment's commutation body connects end view drawing;

Fig. 3 is the schematic diagram of Fig. 1;

Fig. 4 is the schematic diagram of the terminal commutation of the utility model embodiment body;

Fig. 5 is the prior art constructions schematic representation;

Fig. 6 is the schematic diagram of Fig. 5;

Among the figure: 1-oil inlet and oil return body; The 2-body that commutates; The 5-relief valve; The 4-one-way valve; The Q-unloading channel; The R-oil inlet passage; The O-drainback passage; The Pn-filler opening; The Tn-return opening; The total filler opening of P-; The total return opening of T-; The A-actuator port; The B-actuator port.

Embodiment

Below in conjunction with drawings and Examples, further set forth the utility model.In the following detailed description, only by the mode of explanation some one exemplary embodiment of the present utility model has been described.Undoubtedly, those of ordinary skill in the art can recognize, under the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than is used for the protection domain of restriction claim.

As shown in figures 1 and 3, a kind of multiple directional control valve based on single-ended oil sources management system comprises oil inlet and oil return body 1, and series connection fixedly has at least two commutation bodies 2 on the described oil inlet and oil return body 1; Described oil inlet and oil return body 1 is provided with total oil inlet P and total oil return inlet T;

Described commutation body 2 is provided with oil inlet passage R, drainback passage O and the unloading channel Q that is communicated with adjacent described commutation body 2; Be provided with one-way valve 4 and relief valve 3 in the described oil inlet and oil return body 1, described total oil inlet P is communicated with the described oil inlet passage R of adjacent described commutation body 2 by described one-way valve 4, described total oil return inlet T directly is communicated with the described drainback passage O of adjacent described commutation body 2, is connected with described relief valve 3 between described total oil inlet P and the described total oil return inlet T; Described total oil inlet P directly is communicated with the described unloading channel Q of adjacent described commutation body 2;

Described commutation body 2 is provided with the oil inlet P n(P that is communicated with described oil inlet passage R and represents filler opening, n represents the position order of the commutation body 2 that filler opening belongs to) and the oil return inlet T n(T that is communicated with described drainback passage O represent return opening, n represents the position order of the commutation body 2 that return opening belongs to), also be provided with actuator port A and actuator port B for operating hydraulically operated actuator on the described commutation body 2; Be positioned at described oil inlet passage R, the described drainback passage O of terminal described commutation body 2 and the tail end shutoff of described unloading channel Q, as shown in Figure 4, described unloading channel Q and described oil return inlet T n in the terminal described commutation body 2 are communicated with.

As shown in Figure 2, the junction surface between the adjacent commutation body 2 is designed to common end face, and oil inlet passage R, drainback passage O and the unloading channel Q of total same position and size process simple and convenient.When demand not simultaneously, can add arbitrarily at 2 of the commutation bodies of multiple directional control valve or cut the commutation body 2, just can realize the centralized control of a plurality of actuators.

When the spool of each body 2 that commutates all is in the neutral position, hydraulic oil flows to the body 2 that respectively commutates through total oil inlet P and does not work, when hydraulic oil arrives when being positioned at terminal described commutation body 2 away from described oil inlet and oil return valve 1, hydraulic oil enters in the oil return inlet T n of terminal commutation body 2 from unloading channel Q, enter in the drainback passage O by oil return inlet T n, flow back to fuel tank, the off-load of pressure oil circuit through total oil return inlet T then.When the spool of any one commutation body 2 when in valve body hole, doing relative motion, these commutation body 2 corresponding oil circuits are switched on or off and change the direction of oil circuit, thereby handle a plurality of actuator movements, the realization required function.Owing to be positioned at the special structure form of terminal described commutation body 2, total oil inlet P of this multiple directional control valve and total oil return inlet T can be arranged on the oil inlet and oil return body 1, when realizing identical function, lack than common multiple directional control valve and use a lamellar body, saved material, reduced cost.

Owing to adopted technique scheme, by improving the internal oil passages of multiple directional control valve oil inlet and oil return body 1, optimize the structure of multiple directional control valve oil inlet and oil return body 1, lack than common multiple directional control valve when realizing identical function and use a lamellar body, saved material, reduced cost; Oil sources connects from an end of multiple directional control valve, not only makes the structure of multiple directional control valve compacter, has also solved the problem that pipeline in use easily collides with and fractures, and has improved the reliability of multiple directional control valve, has avoided the equipment failure that produces because of leakage of oil.

Technique scheme has been unified the connection end face of commutation body 2, makes that oil circuit is simple, simple installation, more is conducive to produce in batches; And can arbitrarily change commutation body 2 quantity of multiple directional control valve according to the actual requirements, repacking is simple, versatility is stronger, function more comprehensively, application area is wider.

Description of the present utility model provides for example with for the purpose of describing, and is not exhaustively or with the utility model to be limited to disclosed form.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiments that have various modifications that the utility model design is suitable for special-purpose.

Claims (1)

1. multiple directional control valve based on single-ended oil sources management system is characterized in that: comprise the oil inlet and oil return body, connect a slice or the above commutation of a slice body on the described oil inlet and oil return body, described oil inlet and oil return body is provided with total filler opening and total return opening;

Described commutation body is provided with oil inlet passage, drainback passage and the unloading channel that is communicated with adjacent described commutation body; Be provided with one-way valve and relief valve in the described oil inlet and oil return body, described total filler opening is communicated with the described oil inlet passage of adjacent described commutation body by described one-way valve, described total return opening directly is communicated with the described drainback passage of adjacent described commutation body, is connected with described relief valve between described total filler opening and the described total return opening; Described total filler opening directly is communicated with the described unloading channel of adjacent described commutation body;

Described commutation body is provided with the filler opening that is communicated with described oil inlet passage and the return opening that is communicated with described drainback passage, also is provided with the actuator port for operating hydraulically operated actuator on the described commutation body; Be positioned at the tail end shutoff of described oil inlet passage, described drainback passage and the described unloading channel of terminal described commutation body, the described unloading channel in the terminal described commutation body and described return opening are communicated with.

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