CN218542767U - Double-sealing structure of valve cover of reversing valve of hydraulic hammer - Google Patents
Double-sealing structure of valve cover of reversing valve of hydraulic hammer Download PDFInfo
- Publication number
- CN218542767U CN218542767U CN202222668185.6U CN202222668185U CN218542767U CN 218542767 U CN218542767 U CN 218542767U CN 202222668185 U CN202222668185 U CN 202222668185U CN 218542767 U CN218542767 U CN 218542767U
- Authority
- CN
- China
- Prior art keywords
- valve
- mounting groove
- hydraulic hammer
- sealing structure
- valve cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model provides a double-seal structure of hydraulic hammer switching-over valve gap belongs to mechanical technical field. The valve cover of the reversing valve of the hydraulic hammer solves the problems that the valve cover of the reversing valve of the existing hydraulic hammer is inconvenient to manufacture and the sealing effect is not ideal enough. This double containment structure of hydraulic hammer switching-over valve gap, including the valve gap, the valve gap is the tube-shape, and the one end of valve gap is for being used for inserting the connecting portion in the valve body of hydraulic hammer switching-over valve, and the other end of valve gap is for being used for linking firmly the installation department on the valve body terminal surface of hydraulic hammer switching-over valve, and the lateral wall ring of connecting portion is equipped with mounting groove one and mounting groove two, is equipped with sealing washer one and sealing washer two in mounting groove one and the mounting groove two respectively. The double-sealing structure of the valve cover of the hydraulic hammer reversing valve has the advantages of convenience in manufacturing and good sealing effect.
Description
Technical Field
The utility model belongs to the technical field of machinery, a seal structure, especially a double-seal structure of hydraulic hammer switching-over valve gap are related to.
Background
The hydraulic breaking hammer is called as the breaking hammer for short, is usually arranged at the position of an excavator and a loader where a bucket or a loading bucket is arranged, is mainly used for the work of breaking, dismantling, excavating a hard layer and the like in building construction, and has the advantages of large impact force, convenience in use, good maneuverability, high efficiency and the like. The existing breaking hammer generally comprises a cylinder body, a drill rod, a piston and a hydraulic system, wherein the drill rod and the piston are arranged in the cylinder body in a sliding mode, and the hydraulic system drives the piston to reciprocate along the axial direction of the cylinder body, so that the piston continuously strikes the drill rod. The hydraulic system mainly comprises an oil pump, a hydraulic pipeline and a reversing valve, and the reversing valve controls the flow direction of hydraulic oil in the hydraulic system.
For example, the directional valve for a hydraulic breaking hammer and the hydraulic breaking hammer (application number: 202121590223. X) disclosed in the chinese patent document include a valve seat, a valve sleeve, a valve core, and a valve cover, wherein the valve core is fixed by the valve seat and the valve cover, the valve sleeve is sleeved on the valve core and slides back and forth along the axial direction of the valve core to distribute oil, the valve seat is provided with a valve cavity with an open end, the valve core is fixed in the valve cavity, the valve cover is arranged in the opening of the valve cavity and abuts against the valve core, and the valve cover includes an oil delivery end arranged in the valve cavity and a fixed end of an outer end face of the valve seat connected with the oil delivery end and fixed. However, the valve cover and the valve body of the hydraulic breaking hammer are sealed through the end face and the circumference, so that the hydraulic breaking hammer is inconvenient to manufacture and is not ideal in sealing effect.
Disclosure of Invention
The utility model aims at solving the problems in the prior art, and provides a double-sealing structure of a valve cover of a hydraulic hammer reversing valve, which is convenient to manufacture and has good sealing effect.
The purpose of the utility model can be realized by the following technical proposal: double-seal structure of hydraulic hammer switching-over valve gap, including the valve gap, the valve gap be the tube-shape, the one end of valve gap connecting portion in for being used for inserting the valve body of hydraulic hammer switching-over valve, the other end of valve gap for being used for linking firmly the installation department on the valve body terminal surface of hydraulic hammer switching-over valve, its characterized in that, the lateral wall ring of connecting portion be equipped with mounting groove one and mounting groove two, mounting groove one with mounting groove two in be equipped with sealing washer one and sealing washer two respectively.
Because the outer side wall of the connecting part is annularly provided with the first mounting groove and the second mounting groove, and the first mounting groove and the second mounting groove are internally provided with the first sealing ring and the second sealing ring respectively, double circumferential sealing is formed between the valve cover and the valve body, the valve has good sealing effect, and meanwhile, the valve has the advantages of simple structure and convenience in manufacturing.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the first mounting groove is positioned outside the second mounting groove, and the width of the first mounting groove is greater than that of the second mounting groove. By adopting the arrangement, the widths of the sealing rings between the first mounting groove and the second mounting groove are different, and the sealing effect is improved.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the first mounting groove is positioned outside the second mounting groove, and the depth of the first mounting groove is smaller than the width of the second mounting groove. By adopting the arrangement, the thickness of the sealing ring between the first mounting groove and the second mounting groove is different, and the sealing effect is improved.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the upper side and the lower side of the mounting part are provided with the acting surfaces which are arranged in parallel. Through setting up foretell impetus, the dismouting of this valve gap of being convenient for has easy dismounting's advantage.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the inner end face of the valve cover is provided with a hydraulic cavity, the side wall of the connecting part is provided with a plurality of circulation holes, and the circulation holes are communicated with the hydraulic cavity. Through setting up foretell hydraulic pressure chamber and circulation hole, the circulation of pressure oil of being convenient for.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the mounting part is provided with a connecting hole for a screw to pass through, and the connecting hole is uniformly arranged by taking the axis of the connecting part as the center. The screw passes the connecting hole and threaded connection is on the valve body, fixes the valve gap on the valve body, has firm in connection and easy dismounting's advantage.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the bottom of the first mounting groove is perpendicular to the side wall.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the bottom of the first mounting groove and the side wall are in fillet transition.
In the double-sealing structure of the valve cover of the hydraulic hammer reversing valve, the middle part of the outer end of the valve cover is provided with a boss, and the middle part of the boss is provided with a threaded hole.
Compared with the prior art, this double containment structure of hydraulic hammer switching-over valve gap has following advantage:
1. the outer side wall of the connecting part is annularly provided with a first mounting groove and a second mounting groove, and a first sealing ring and a second sealing ring are respectively arranged in the first mounting groove and the second mounting groove, so that double circumferential sealing is formed between the valve cover and the valve body, and the valve has the advantages of good sealing effect, simple structure and convenience in manufacturing;
2. the width of the first mounting groove is larger than that of the second mounting groove, so that the widths of the sealing rings between the first mounting groove and the second mounting groove are different, and the sealing effect is improved;
3. the depth of the first mounting groove is smaller than the width of the second mounting groove, so that the thickness of the sealing ring between the first mounting groove and the second mounting groove is different, and the sealing effect is improved;
4. the screw passes connecting hole and threaded connection on the valve body, fixes the valve gap on the valve body, has firm in connection and easy dismounting's advantage.
Drawings
Fig. 1 is a schematic view of a hydraulic hammer directional valve having the present seal structure.
Fig. 2 is a right-side schematic view of the double sealing structure of the valve cover of the hydraulic hammer reversing valve.
Fig. 3 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A of the double sealing structure of the valve cover of the hydraulic hammer directional valve.
Figure 4 is a cross-sectional view of another construction of the present seal.
Figure 5 is a cross-sectional view of another construction of the present seal.
In the figure, 1, valve cover; 2. a connecting portion; 2a, mounting a first groove; 2b, mounting a second groove; 3. an installation part; 3a, an acting surface; 3b, connecting holes; 4. a hydraulic chamber; 5. a flow-through hole; 6. a boss; 7. a threaded hole; 8. a first sealing ring; 9. a second sealing ring; 10. a valve body.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, the dual-sealing structure of the valve cover of the hydraulic hammer reversing valve comprises a valve cover 1, wherein the valve cover 1 is in a cylindrical shape, one end of the valve cover 1 is a connecting part 2 which is used for being inserted into a valve body 10 of the hydraulic hammer reversing valve, the other end of the valve cover 1 is an installing part 3 which is used for being fixedly connected onto the end face of the valve body 10 of the hydraulic hammer reversing valve, the outer side wall of the connecting part 2 is annularly provided with a first installing groove 2a and a second installing groove 2b, and a first sealing ring 8 and a second sealing ring 9 are respectively arranged in the first installing groove 2a and the second installing groove 2 b.
As another mode, as shown in fig. 4, the first mounting groove 2a is located outside the second mounting groove 2b, and the width of the first mounting groove 2a is greater than that of the second mounting groove 2b, so that the widths of the sealing rings between the first mounting groove 2a and the second mounting groove 2b are different, and the sealing effect is improved.
As another mode, as shown in fig. 5, the first mounting groove 2a is located outside the second mounting groove 2b, and the depth of the first mounting groove 2a is smaller than the width of the second mounting groove 2b, so that the thicknesses of the sealing rings between the first mounting groove 2a and the second mounting groove 2b are different, and the sealing effect is improved.
The upper and lower both sides of installation department 3 have parallel arrangement's impetus face 3a, the dismouting of this valve gap 1 of being convenient for has easy dismounting's advantage.
The inner end face of the valve cover 1 is provided with a hydraulic cavity 4, the side wall of the connecting part 2 is provided with a plurality of circulation holes 5, and the circulation holes 5 are communicated with the hydraulic cavity 4, so that the pressure oil can circulate conveniently. The middle part of the outer end of the valve cover 1 is provided with a boss 6, and the middle part of the boss 6 is provided with a threaded hole 7.
Be equipped with on the installation department 3 if the connecting hole 3b that supplies the screw to pass and connecting hole 3b use the axis of connecting portion 2 to evenly set up as the center, the screw passes connecting hole 3b and threaded connection on valve body 10, fixes valve gap 1 on valve body 10, has firm in connection and easy dismounting's advantage.
The bottom of the first mounting groove 2a is perpendicular to the side wall. Alternatively, the bottom and the side walls of the first mounting groove 2a are rounded.
Because the outer side wall of the connecting part 2 is annularly provided with the first mounting groove 2a and the second mounting groove 2b, and the first mounting groove 2a and the second mounting groove 2b are internally provided with the first sealing ring 8 and the second sealing ring 9 respectively, double circumferential sealing is formed between the valve cover 1 and the valve body 10, and the valve body has the advantages of good sealing effect, simple structure and convenience in manufacturing.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the terms of the valve cover 1, the connecting portion 2, the first mounting groove 2a, the second mounting groove 2b, the mounting portion 3, the force application surface 3a, the connecting hole 3b, the hydraulic pressure chamber 4, the flow hole 5, the boss 6, the threaded hole 7, the first seal ring 8, the second seal ring 9, the valve body 10, etc., are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (9)
1. Double-sealing structure of hydraulic hammer switching-over valve gap, including valve gap (1), valve gap (1) be the tube-shape, the one end of valve gap (1) for being used for inserting connecting portion (2) in valve body (10) of hydraulic hammer switching-over valve, the other end of valve gap (1) for being used for linking firmly installation department (3) on valve body (10) terminal surface of hydraulic hammer switching-over valve, its characterized in that, the lateral wall ring of connecting portion (2) be equipped with mounting groove (2 a) and mounting groove two (2 b), mounting groove (2 a) with mounting groove two (2 b) in be equipped with sealing washer (8) and sealing washer two (9) respectively.
2. The dual sealing structure of a valve cover of a hydraulic hammer directional valve according to claim 1, wherein the first mounting groove (2 a) is located outside the second mounting groove (2 b) and the width of the first mounting groove (2 a) is greater than the width of the second mounting groove (2 b).
3. The dual sealing structure of a valve cover of a hydraulic hammer direction valve according to claim 1, wherein the first mounting groove (2 a) is located outside the second mounting groove (2 b) and the depth of the first mounting groove (2 a) is smaller than the width of the second mounting groove (2 b).
4. The double sealing structure of the valve cover of the hydraulic hammer direction valve according to claim 1, 2 or 3, wherein the upper and lower sides of the mounting part (3) are provided with parallel force application surfaces (3 a).
5. The double sealing structure of the valve cover of the hydraulic hammer reversing valve according to claim 1, 2 or 3, characterized in that the inner end surface of the valve cover (1) is provided with a hydraulic chamber (4), the side wall of the connecting part (2) is provided with a plurality of flow holes (5), and the flow holes (5) are communicated with the hydraulic chamber (4).
6. The dual sealing structure of the valve cover of the hydraulic hammer reversing valve according to claim 1, 2 or 3, wherein the mounting part (3) is provided with a plurality of connecting holes (3 b) for screws to pass through and the connecting holes (3 b) are uniformly arranged by taking the axis of the connecting part (2) as the center.
7. The double sealing structure of the valve cover of the hydraulic hammer direction valve according to claim 1, 2 or 3, wherein the bottom of the first mounting groove (2 a) is vertically arranged with the side wall.
8. The double sealing structure of the valve cover of the hydraulic hammer direction valve according to claim 1, 2 or 3, wherein the bottom and the side wall of the first mounting groove (2 a) are rounded.
9. The dual sealing structure of the valve cover of the hydraulic hammer reversing valve according to claim 1, 2 or 3, characterized in that a boss (6) is arranged in the middle of the outer end of the valve cover (1), and a threaded hole (7) is arranged in the middle of the boss (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222668185.6U CN218542767U (en) | 2022-10-09 | 2022-10-09 | Double-sealing structure of valve cover of reversing valve of hydraulic hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222668185.6U CN218542767U (en) | 2022-10-09 | 2022-10-09 | Double-sealing structure of valve cover of reversing valve of hydraulic hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218542767U true CN218542767U (en) | 2023-02-28 |
Family
ID=85276487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222668185.6U Active CN218542767U (en) | 2022-10-09 | 2022-10-09 | Double-sealing structure of valve cover of reversing valve of hydraulic hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218542767U (en) |
-
2022
- 2022-10-09 CN CN202222668185.6U patent/CN218542767U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12044234B2 (en) | Cover, fluid end and plunger pump | |
| CN102434530A (en) | Differential-type plunger composite oil cylinder | |
| CN218542767U (en) | Double-sealing structure of valve cover of reversing valve of hydraulic hammer | |
| CN214367698U (en) | Breaking hammer combined type piston ring | |
| CN207975021U (en) | A kind of dredger ship pump is sealed with machine | |
| CN215214168U (en) | Integrated shuttle valve assembly | |
| CN212407662U (en) | Reversing valve of breaking hammer | |
| CN215805471U (en) | Reversing valve for hydraulic breaking hammer and hydraulic breaking hammer | |
| CN216642096U (en) | Water injection mechanism and rock drill | |
| CN210509294U (en) | Material-saving cylinder end cover | |
| CN210623270U (en) | Sealing structure for front end part of middle cylinder of breaking hammer | |
| CN214465614U (en) | Strong high temperature resistant metal steel bushing | |
| CN217539180U (en) | Oil cylinder locked mechanically | |
| CN216923157U (en) | Pulling-damage-preventing wear-resistant piston ring structure | |
| CN215568331U (en) | Piston rod of gas-liquid mixed valve body | |
| CN212718165U (en) | Reversing valve structure of breaking hammer | |
| CN216895145U (en) | Corrosion-resistant cylinder head | |
| CN214742452U (en) | Oil cylinder dustproof structure with muddy water prevention effect | |
| CN220204717U (en) | Valve sleeve and valve core assembly of hydraulic breaking hammer reversing valve | |
| CN215568134U (en) | Hydraulic breaking hammer reversing valve structure | |
| CN210178562U (en) | High-strength crankshaft applied to drilling pump | |
| CN218761390U (en) | Sealing seat of discharging machine | |
| CN217927018U (en) | Wear-resisting cross axle for differential mechanism | |
| CN207080623U (en) | A kind of control valve for water pump novel valve clack | |
| CN213928964U (en) | Improved structure of oil inlet and outlet of reversing valve body in breaking hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |