CN211315216U

CN211315216U - Switching and intercommunicating three-way hydraulic control reversing valve

Info

Publication number: CN211315216U
Application number: CN201922497798.6U
Authority: CN
Inventors: 陈雷
Original assignee: Rongche Intelligent Technology Shanghai Co ltd
Current assignee: Rongche Intelligent Technology Shanghai Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-21
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a switch intercommunication tee bend liquid accuse switching-over valve, which comprises an outer shell, the left side welding of shell inner chamber has the spring, the right side cover of spring is equipped with the gag lever post, the inboard of gag lever post has the case through mechanical technology integrated into one piece, there is the connecting rod in the left side of case through mechanical technology integrated into one piece, and the surface of connecting rod and the internal surface contact of spring, the upper and lower both ends of case all have first jam and second to block up through mechanical technology integrated into one piece. The utility model discloses a first oilhole has been seted up on the right side of shell, and fourth oilhole, third oilhole and second oilhole have all been seted up at the upper and lower both ends of shell, have played the effect that the multi-ported goes out oil, have solved when current switching-over valve is in all hydraulic fluid ports and does not communicate with each other, will lead to the system pressure infinity in the twinkling of an eye, cause very big impact to system pipeline and component, the life of greatly reduced pipeline and component, damage and the problem of system collapse until the component.

Description

Switching and intercommunicating three-way hydraulic control reversing valve

Technical Field

The utility model relates to a switching-over valve technical field specifically is a switch intercommunication tee bend liquid accuse switching-over valve.

Background

The reversing valve is a directional control valve with more than two flow forms and more than two oil ports, is a valve for realizing communication, cutting off and reversing of hydraulic oil flow, pressure unloading and sequential action control, and is a directional control valve depending on relative movement of a valve core and a valve body. The existing reversing valve is in a state that all oil ports are not communicated with each other, so that the instant pressure of a system is infinite, the system pipeline and elements are greatly impacted, the service lives of the pipeline and the elements are greatly reduced until the elements are damaged and the system is broken down, and therefore, the switching and communicating three-way hydraulic control reversing valve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a switch intercommunication tee bend liquid accuse switching-over valve possesses long service life's advantage, has solved when current switching-over valve is in all hydraulic fluid ports not communicating state each other, will lead to the system pressure infinity in the twinkling of an eye, causes very big impact to system's pipeline and component, the life of greatly reduced pipeline and component, until the problem of component damage and system collapse.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a switch intercommunication tee bend liquid accuse switching-over valve, includes the shell, the left side welding of shell inner chamber has the spring, the right side cover of spring is equipped with the gag lever post, the inboard of gag lever post has the case through mechanical technology integrated into one piece, the left side of case has the connecting rod through mechanical technology integrated into one piece, and the surface of connecting rod and the internal surface contact of spring, the upper and lower both ends of case all have first jam and second jam through mechanical technology integrated into one piece, first oilhole has been seted up on the right side of shell, fourth oilhole, third oilhole and second oilhole have all been seted up at the upper and lower both ends of shell.

Preferably, the surface of the valve core is coated with a borosilicate glass resin layer by plasma spraying, one side of the surface of the borosilicate glass resin layer, which is far away from the valve core, is coated with a phosphate lead powder resin layer by plasma spraying, one side of the surface of the phosphate lead powder resin layer, which is far away from the borosilicate glass resin layer, is coated with an organic high-temperature-resistant coating layer by plasma spraying, and one side of the surface of the organic high-temperature-resistant coating layer, which is far away from the phosphate lead powder resin layer, is coated with a polymer resin layer by plasma spraying.

Preferably, the thickness of the borosilicate glass resin layer and the thickness of the phosphate lead powder resin layer are 0.011mm-0.016mm, and the thickness of the organic high-temperature resistant coating layer and the thickness of the polymer resin layer are 0.012mm-0.018 mm.

Preferably, the surface of the connecting rod is provided with a silicon carbide wear-resistant coating through plasma spraying, and one side of the surface of the silicon carbide wear-resistant coating, which is far away from the connecting rod, is provided with a ceramic metal coating through plasma spraying.

Preferably, the thickness of the silicon carbide wear-resistant coating is 0.014mm-0.019mm, and the thickness of the ceramic metal coating layer is 0.016mm-0.021 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a first oilhole has been seted up on the right side of shell, and fourth oilhole, third oilhole and second oilhole have all been seted up at the upper and lower both ends of shell, have played the effect that the multi-ported goes out oil, have solved when current switching-over valve is in all hydraulic fluid ports and does not communicate with each other, will lead to the system pressure infinity in the twinkling of an eye, cause very big impact to system pipeline and component, the life of greatly reduced pipeline and component, damage and the problem of system collapse until the component.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of a lead phosphate powder resin layer according to the present invention;

fig. 3 is a schematic structural view of the silicon carbide wear-resistant coating of the present invention.

In the figure: 1. a housing; 2. a first occlusion; 3. a second occlusion; 4. a valve core; 5. a connecting rod; 6. a spring; 7. a limiting rod; 8. a fourth oil hole; 9. a third oil hole; 10. a second oil hole; 11. a first oil hole; 12. a borosilicate glass resin layer; 13. a lead phosphate powder resin layer; 14. an organic high temperature resistant coating layer; 15. a polymer resin layer; 16. a silicon carbide wear-resistant coating; 17. and a ceramic metal coating layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model discloses an shell 1, first jam 2, the second blocks up 3, case 4, connecting rod 5, spring 6, gag lever post 7, fourth oilhole 8, third oilhole 9, second oilhole 10, first oilhole 11, borosilicate glass resin layer 12, phosphate lead powder resin layer 13, organic high temperature resistant dope layer 14, polymer resin layer 15, carborundum wear-resistant coating 16 and ceramic metal dope layer 17 part are general standard or the part that technical personnel in the field know, its structure and principle all are that this technical personnel all can learn through the technical manual or learn through conventional experimental method.

Referring to fig. 1-3, a switching and communicating three-way hydraulic control directional control valve comprises a housing 1, a spring 6 is welded on the left side of an inner cavity of the housing 1, a limiting rod 7 is sleeved on the right side of the spring 6, a valve core 4 is integrally formed on the inner side of the limiting rod 7 through a mechanical process, a connecting rod 5 is integrally formed on the left side of the valve core 4 through the mechanical process, the outer surface of the connecting rod 5 is in contact with the inner surface of the spring 6, a first plug 2 and a second plug 3 are integrally formed on the upper end and the lower end of the valve core 4 through the mechanical process, a first oil hole 11 is formed on the right side of the housing 1, a fourth oil hole 8, a third oil hole 9 and a second oil hole 10 are formed on the upper end and the lower end of the housing 1, a borosilicate glass resin layer 12 is sprayed on the surface of the valve core 4 through plasma, a phosphate lead powder resin, the surface of the phosphate lead powder resin layer 13 and one side far away from the borosilicate glass resin layer 12 are coated with an organic high-temperature resistant coating layer 14 by plasma spraying, the surface of the organic high-temperature resistant coating layer 14 and one side far away from the phosphate lead powder resin layer 13 are coated with a polymer resin layer 15 by plasma spraying, the thicknesses of the borosilicate glass resin layer 12 and the phosphate lead powder resin layer 13 are 0.011mm-0.016mm, the thicknesses of the organic high-temperature resistant coating layer 14 and the polymer resin layer 15 are 0.012mm-0.018mm, the surface of the connecting rod 5 is coated with a silicon carbide wear-resistant coating layer 16 by plasma spraying, the surface of the silicon carbide wear-resistant coating layer 16 and one side far away from the connecting rod 5 are coated with a ceramic metal coating layer 17 by plasma spraying, the thickness of the silicon carbide wear-resistant coating layer 16 is 0.014mm-0.019mm, and the thickness of the ceramic metal coating layer 17.

When the valve is used, when pressurized oil enters through the first oil hole 11, the valve core 4 is driven to move to the left side by the pressure of the pressurized oil, the first plug 2 and the second plug 3 are driven to move to the left side by the valve core 4, the connecting rod 5 is driven to move to the left side by the first plug 2 and the second plug 3, the spring 6 is driven to move to the left side by the connecting rod 5 to deform the spring 6, at the moment, the fourth oil hole 8 and the third oil hole 9 are gradually closed by communication, when the valve core 4 moves to the left, the valve sleeve size hole is closed, at the moment, the fourth oil hole 8, the third oil hole 9 and the second oil hole 10 are not communicated with each other completely, when the valve core 4 continues to move to the left, the third oil hole 9 and the second oil hole 10 are communicated with each other gradually until the third oil hole 9 and the second oil hole 10 are communicated with each other, when the valve core 4 continues to move to the left, the third oil hole 9 and the second oil hole 10 are gradually communicated until completely communicated, the fourth oil hole 8 and the third oil hole 9 are gradually closed until completely closed, so that the fourth oil hole 8 is communicated with the third oil hole 9 and is switched to be communicated with the third oil hole 9 and the second oil hole 10, and the problems that when all oil holes of an existing reversing valve are not communicated with each other, the instant pressure of a system is infinite, great impact is caused to pipelines and elements of the system, the service lives of the pipelines and the elements are greatly reduced, and the elements are damaged and the system collapses are solved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a switch intercommunication tee bend liquid accuse switching-over valve, includes shell (1), its characterized in that: the left side welding of shell (1) inner chamber has spring (6), the right side cover of spring (6) is equipped with gag lever post (7), the inboard of gag lever post (7) has case (4) through mechanical technology integrated into one piece, the left side of case (4) has connecting rod (5) through mechanical technology integrated into one piece, and the surface of connecting rod (5) and the interior surface contact of spring (6), the upper and lower both ends of case (4) all have first jam (2) and second jam (3) through mechanical technology integrated into one piece, first oilhole (11) have been seted up on the right side of shell (1), fourth oilhole (8), third oilhole (9) and second oilhole (10) have all been seted up at the upper and lower both ends of shell (1).

2. The switching and communicating three-way hydraulically controlled reversing valve of claim 1, wherein: the surface of the valve core (4) is coated with a borosilicate glass resin layer (12) by plasma spraying, one side of the surface of the borosilicate glass resin layer (12) far away from the valve core (4) is coated with a lead phosphate powder resin layer (13) by plasma spraying, one side of the surface of the lead phosphate powder resin layer (13) far away from the borosilicate glass resin layer (12) is coated with an organic high-temperature-resistant coating layer (14) by plasma spraying, and one side of the surface of the organic high-temperature-resistant coating layer (14) far away from the lead phosphate powder resin layer (13) is coated with a polymer resin layer (15) by plasma spraying.

3. The switching and communicating three-way hydraulically controlled reversing valve of claim 2, wherein: the thickness of the borosilicate glass resin layer (12) and the phosphate lead powder resin layer (13) is 0.011mm-0.016mm, and the thickness of the organic high-temperature resistant coating layer (14) and the polymer resin layer (15) is 0.012mm-0.018 mm.

4. The switching and communicating three-way hydraulically controlled reversing valve of claim 1, wherein: the surface of connecting rod (5) has carborundum wear-resistant coating (16) through the plasma spraying, the surface of carborundum wear-resistant coating (16) just keeps away from one side of connecting rod (5) and has ceramic metallic paint layer (17) through the plasma spraying.

5. The switching and communicating three-way hydraulically controlled reversing valve of claim 4, wherein: the thickness of the silicon carbide wear-resistant coating (16) is 0.014mm-0.019mm, and the thickness of the ceramic metal coating layer (17) is 0.016mm-0.021 mm.