CN211116882U - Reversing buffer device of high-speed cartridge valve - Google Patents
Reversing buffer device of high-speed cartridge valve Download PDFInfo
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- CN211116882U CN211116882U CN201921661755.0U CN201921661755U CN211116882U CN 211116882 U CN211116882 U CN 211116882U CN 201921661755 U CN201921661755 U CN 201921661755U CN 211116882 U CN211116882 U CN 211116882U
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- buffering body
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Abstract
The utility model belongs to the field of cartridge valves, in particular to a reversing buffer device of a high-speed cartridge valve, which comprises a first buffer body and a second buffer body, wherein the first buffer body is arranged at the top of a valve core of the cartridge valve, the second buffer body is arranged at the bottom of a valve sleeve of the cartridge valve, the first buffer body and the second buffer body respectively comprise an upper steel plate, a lower steel plate and a rubber plate which are vulcanized into a whole, the upper steel plate, the lower steel plate and the rubber plate are all in an annular structure, the rubber ring plate is arranged between the upper steel plate and the lower steel plate, the lower steel plate of the first buffer body is in interference fit with the top of the valve core, the lower steel plate of the second buffer body is in interference fit with the bottom of the valve sleeve, when the valve core moves towards a control cover plate or the valve sleeve, most impact force is correspondingly absorbed by the first buffer body or the second buffer body, and vibration caused by larger impact on the control, the service life of the valve core is prolonged, the sealing performance of the cartridge valve is guaranteed, and the safety and reliability of equipment are improved.
Description
Technical Field
The utility model belongs to the cartridge valve field, concretely relates to high-speed cartridge valve switching-over buffer.
Background
The cartridge valve component consists of a valve core, a valve sleeve, a spring and a sealing ring, the cartridge valve is widely used in the field of fluid control function, and has the characteristics of large through-flow capacity, good sealing performance, sensitive action and simple structure, is mainly used for a hydraulic system with large flow or a system with high requirement on sealing performance, and the application of the cartridge valve is continuously expanded in the industrial field.
The opening and closing of the cartridge valve are realized by the up-and-down movement of the valve core, when the pressure of the pilot valve is reduced, the upward thrust on the bottom of the valve core is greater than the downward pressure of the spring, the valve core moves rapidly upward towards the direction of the control cover plate, and the valve core stops moving after being in rigid contact with the control cover plate; when pilot valve pressure increases, upward thrust is received to case bottom and is less than the decurrent pressure of spring, and the case moves fast downwards towards the valve barrel direction, and case and valve barrel rigid contact back stop motion, to high pressure, large-traffic hydraulic system, the tendency must lead to the fact great impact to control apron, valve barrel and equipment when cartridge valve case switching-over, arouses the vibration, and the vibration can cause a series of problems, if case life reduces, valve leakproofness can not be guaranteed, the oil circuit is unstable etc. directly influences equipment fail safe nature.
The invention content is as follows:
in order to solve the problem in the prior art, the utility model relates to a high-speed cartridge valve switching-over buffer, including the first buffering body and the second buffering body, impact force when can the effective absorption case switching-over reduces the vibration, improves case life, guarantees cartridge valve's leakproofness, improve equipment fail safe nature.
In order to realize the purpose, the reversing buffer device of the high-speed cartridge valve adopts the following technical scheme:
the utility model provides a high-speed cartridge valve switching-over buffer, including the control apron of cartridge valve, the case, spring and valve barrel, still include first buffer body and second buffer body, first buffer body sets up at the top of cartridge valve case, the second buffer body sets up in the bottom of cartridge valve barrel, first buffer body and second buffer body are respectively including vulcanizing integrative last steel sheet, lower steel sheet and rubber slab, go up the steel sheet, lower steel sheet and rubber slab all are the loop configuration, and the rubber ring board sets up at last steel sheet, down between the steel sheet.
Further, be equipped with the mounting groove A that is used for installing the first buffering body at the case top, and the thickness of the first buffering body is greater than the degree of depth of mounting groove A, interference fit between the lower steel sheet of the first buffering body and the mounting groove A, the last steel sheet of the first buffering body is the same with the internal diameter of lower steel sheet, and the last steel sheet external diameter of the first buffering body is less than the external diameter of lower steel sheet.
Furthermore, the valve sleeve bottom is provided with a mounting groove B for mounting a second buffering body, the thickness of the second buffering body is larger than the depth of the mounting groove B, the lower steel plate of the second buffering body is in interference fit with the mounting groove B, the inner diameters of the upper steel plate and the lower steel plate of the second buffering body are the same, and the outer diameter of the upper steel plate of the second buffering body is smaller than the outer diameter of the lower steel plate.
Furthermore, the side surfaces of the first buffer body rubber plate and the second buffer body rubber plate are both concave structures.
Further, the rubber plate is made of polyurethane, natural rubber or butadiene rubber.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses set up the first buffering body at the top of cartridge valve case, set up the second buffering body in the below of cartridge valve barrel bottom, interference fit between the lower steel sheet of the first buffering body and the case top, interference fit between the lower steel sheet of the second buffering body and the valve barrel bottom, when the case removes to control apron or valve barrel, correspond and absorb most impact force by the first buffering body or the second buffering body, to the control apron when reducing cartridge valve case switching-over, valve barrel and equipment cause great impact to arouse the vibration, improve case life, guarantee cartridge valve's leakproofness, improve equipment fail safe nature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention:
FIG. 2 is a schematic cross-sectional view of the first buffer body and the second buffer body of the present invention;
in the above figures: 1-controlling the cover plate; 2-a first buffer; 3-a valve core; 4-a spring; 5-valve sleeve; 6-a second buffer body; 7-upper steel plate; 8-a rubber plate; and 9-lower steel plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The reversing buffer device of the high-speed cartridge valve of the utility model is elaborated in detail by combining the attached drawings 1 and 2, and comprises a control cover plate 1 of the cartridge valve, a valve core 3, a spring 4 and a valve sleeve 5, and also comprises a first buffer body 2 and a second buffer body 6, wherein the first buffer body 2 is arranged at the top of the cartridge valve core 3, when the valve core 3 moves towards the control cover plate 1, the first buffer body 2 contacts the control cover plate 1, the first buffer body 2 generates elastic deformation to absorb most impact force of the valve core 3 to the control cover plate 1, and the valve core 3 is prevented from rigidly contacting the control cover plate 1 when moving upwards, the second buffer body 6 is arranged at the bottom of the valve sleeve 5 of the cartridge valve, when the valve core 3 moves downwards towards the valve sleeve 5, the second buffer body 6 contacts the valve sleeve 5, the second buffer body 6 generates elastic deformation to absorb most impact force of the valve core 3 to the valve sleeve 5 and equipment, and reduce the vibration, first buffer 2 and second buffer 6 are respectively including vulcanizing integrative last steel sheet 7, lower steel sheet 9 and rubber slab 8, and it all is the loop configuration to go up steel sheet 7, lower steel sheet 9 and rubber slab 8, and the rubber crown plate setting is at last steel sheet 7, down between the steel sheet 9.
Be equipped with the mounting groove A that is used for installing first buffer 2 at case 3 top, and the thickness of first buffer 2 is greater than the degree of depth of mounting groove A, interference fit between lower steel sheet 9 of first buffer 2 and the mounting groove A, the last steel sheet 7 of first buffer 2 is the same with the internal diameter of lower steel sheet 9, and the outer diameter of last steel sheet 7 of first buffer 2 is less than the external diameter of lower steel sheet 9.
The bottom of the valve sleeve 5 is provided with a mounting groove B for mounting a second buffer body 6, the thickness of the second buffer body 6 is larger than the depth of the mounting groove B, the lower steel plate 9 of the second buffer body 6 is in interference fit with the mounting groove B, the inner diameters of the upper steel plate 7 and the lower steel plate 9 of the second buffer body 6 are the same, and the outer diameter of the upper steel plate 7 of the second buffer body 6 is smaller than the outer diameter of the lower steel plate 9.
The side surfaces of the rubber plate 8 of the first buffer body 2 and the rubber plate 8 of the second buffer body 6 are both concave structures, and a space is reserved for the compression deformation of the rubber plate 8.
The rubber sheet 8 is made of polyurethane, natural rubber or butadiene rubber.
The utility model discloses the working process is as follows:
when the pressure of the pilot valve is reduced, the upward pressure applied to the bottom of the valve core 3 is greater than the downward pressure applied to the spring 4, the valve core 3 is lifted upwards, the valve core 3 moves towards the control cover plate 1 quickly, the first buffer body 2 is in contact with the bottom of the control cover plate 1, the first buffer body 2 is elastically deformed, the rigid impact of the valve core 3 on the control cover plate 1 is avoided, the impact force of the valve core 3 on the control cover plate 1 is reduced, the control cover plate 1 and the valve core 3 are prevented from being damaged due to the rigid contact of the valve core 3 and the control cover plate 1, meanwhile, the oil circuit sealing piece of the cartridge valve is prevented from bearing;
when pilot valve pressure increases, 3 bottoms of case receive upward pressure to be less than spring 4 downward pressure, 3 downstream of case, 3 quick movements to valve barrel 5 of case, second buffer 6 and equipment contact under the effect of case 3 and valve barrel 5, elastic deformation takes place for second buffer 6, reduce the rigidity impact of case 3 to valve barrel 5 and equipment, avoid valve barrel 5 and 3 damages of case that cause because the rigidity is strikeed, avoid simultaneously because the emergence that is unfavorable for equipment operational aspect such as the unstable cartridge valve oil circuit that great impact caused.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the present invention should not be construed as being limited thereto, and it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, as being able to be fixedly connected, detachably connected, or integrally formed, mechanically connected, or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present application can be understood through specific situations.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a high-speed cartridge valve switching-over buffer, includes the control cover plate of cartridge valve, case, spring and valve barrel, characterized by: the valve sleeve is characterized by further comprising a first buffering body and a second buffering body, the first buffering body is arranged at the top of the valve core of the cartridge valve, the second buffering body is arranged below the bottom of the valve sleeve of the cartridge valve, the first buffering body and the second buffering body respectively comprise an upper steel plate, a lower steel plate and a rubber plate which are integrally vulcanized, the upper steel plate, the lower steel plate and the rubber plate are all of annular structures, and the rubber ring plate is arranged between the upper steel plate and the lower steel plate.
2. The reversing buffer device of the high-speed cartridge valve as claimed in claim 1, wherein: be equipped with the mounting groove A that is used for installing the first buffering body at the case top, and the thickness of the first buffering body is greater than the degree of depth of mounting groove A, interference fit between the lower steel sheet of the first buffering body and the mounting groove A, the last steel sheet of the first buffering body is the same with the internal diameter of lower steel sheet, and the last steel sheet external diameter of the first buffering body is less than the external diameter of lower steel sheet.
3. The reversing buffer device of the high-speed cartridge valve as claimed in claim 1, wherein: the valve sleeve bottom is provided with a mounting groove B for mounting a second buffering body, the thickness of the second buffering body is larger than the depth of the mounting groove B, the lower steel plate of the second buffering body is in interference fit with the mounting groove B, the inner diameters of the upper steel plate and the lower steel plate of the second buffering body are the same, and the outer diameter of the upper steel plate of the second buffering body is smaller than the outer diameter of the lower steel plate.
4. The reversing buffer device of the high-speed cartridge valve as claimed in claim 1, wherein: the side surfaces of the first buffer body rubber plate and the second buffer body rubber plate are both of concave structures.
5. The reversing buffer device of the high-speed cartridge valve according to claim 1 or 4, wherein: the rubber plate is made of polyurethane, natural rubber or butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921661755.0U CN211116882U (en) | 2019-10-08 | 2019-10-08 | Reversing buffer device of high-speed cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921661755.0U CN211116882U (en) | 2019-10-08 | 2019-10-08 | Reversing buffer device of high-speed cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116882U true CN211116882U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921661755.0U Active CN211116882U (en) | 2019-10-08 | 2019-10-08 | Reversing buffer device of high-speed cartridge valve |
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| Country | Link |
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| CN (1) | CN211116882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901581A (en) * | 2021-01-15 | 2021-06-04 | 宁波宇洲液压设备有限公司 | Buffer device and sequence valve |
-
2019
- 2019-10-08 CN CN201921661755.0U patent/CN211116882U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901581A (en) * | 2021-01-15 | 2021-06-04 | 宁波宇洲液压设备有限公司 | Buffer device and sequence valve |
| CN112901581B (en) * | 2021-01-15 | 2023-07-04 | 宁波宇洲液压设备有限公司 | Buffer device and sequence valve |
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