CN215486952U - Middle cylinder assembly of hydraulic breaking hammer - Google Patents
Middle cylinder assembly of hydraulic breaking hammer Download PDFInfo
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- CN215486952U CN215486952U CN202121626614.2U CN202121626614U CN215486952U CN 215486952 U CN215486952 U CN 215486952U CN 202121626614 U CN202121626614 U CN 202121626614U CN 215486952 U CN215486952 U CN 215486952U
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- 241000510097 Megalonaias nervosa Species 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 ore Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to mining equipment, in particular to a middle cylinder assembly of a hydraulic breaking hammer, which comprises a middle cylinder, a piston in clearance fit with the middle cylinder and an oil seal fixer in clearance fit with the piston and the middle cylinder, and is different from the prior art in that: the ratio of the inner diameter of the middle cylinder body to the length thereof is 1: 5-1: 6; the ratio of the outer diameter of the piston to the length of the piston is 1:6 to 1: 7. Compared with the prior art, the length of the middle cylinder body and the piston is 1.0-1.6 times that of the cylinder body and the piston in the traditional breaking hammer with the corresponding model, so that the piston stroke is relatively long, the breaking effect is relatively large, and the working efficiency can be greatly improved.
Description
Technical Field
The utility model relates to mining equipment, in particular to a middle cylinder assembly of a hydraulic breaking hammer.
Technical Field
The hydraulic pump is used as a power source, hydraulic oil is used as a medium, and the piston is driven to reciprocate by using the static pressure of the hydraulic oil as power, so that the piston impacts a drill rod at a high speed during the stroke, and the drill rod breaks solid such as ore, concrete and the like. However, the existing hydraulic breaking hammer still has some defects: the existing hydraulic breaking hammer has the disadvantages that the cylinder and the piston are relatively short in length, so that the stroke of the piston is relatively short, and the breaking effect is relatively small. Meanwhile, the fit clearance between the middle part of the middle cylinder body and the piston is equal to the fit clearance between the striking end of the middle cylinder body and the piston, and the piston and the cylinder body are easily damaged by pulling under the action of the radial component force of the piston.
Disclosure of Invention
In order to overcome one of the technical defects or shortcomings in the prior art, the utility model discloses a middle cylinder assembly of a hydraulic breaking hammer, which comprises a middle cylinder, a piston in clearance fit with the middle cylinder and an oil seal fixer in clearance fit with the piston and the middle cylinder, wherein the difference from the prior art is that: the ratio of the inner diameter of the middle cylinder body to the length thereof is 1: 5-1: 6; the ratio of the outer diameter of the piston to the length of the piston is 1:6 to 1: 7.
Compared with the prior art, the length of the middle cylinder body and the piston is 1.0-1.6 times that of the cylinder body and the piston in the traditional breaking hammer with the corresponding model, so that the piston stroke is relatively long, the breaking effect is relatively large, and the working efficiency can be greatly improved.
Further, the ratio of the inner diameter of the oil seal fixer to the outer diameter thereof is 1: 1.3-1: 1.4; the ratio of the inner diameter of the oil seal fixer to the length thereof is 1: 0.56-1: 0.6. Therefore, the thickness and the height of the oil seal fixer are 1.1-1.8 times of those of the existing breaking hammer oil seal fixer with the corresponding model, and the strain probability of the cylinder body and the piston is reduced.
Further, the fit clearance between the middle part of the middle cylinder body and the piston is larger than the fit clearance between the middle cylinder body close to the striking end and the piston. Thus, the radial component force of the piston is supported and absorbed by the striking point, and the strain of the piston and the cylinder body is reduced.
Furthermore, a one-way valve or a needle valve or other valve bodies capable of establishing high pressure are additionally arranged on an oil return hole at the middle cylinder body washboard. Therefore, high pressure can be ensured to be established at the washboard, radial component force is reduced under the action of the high pressure, and the strain probability is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Embodiment 1, a middle cylinder assembly of a hydraulic breaking hammer as shown in fig. 1, includes a middle cylinder 1, a piston 2 in clearance fit with the middle cylinder, and an oil seal holder 3 in clearance fit with the piston and the middle cylinder, and is characterized in that: the ratio of the inner diameter of the middle cylinder body to the length thereof is 1: 5.27; the ratio of the piston outer diameter to its length is 1: 5.98. The ratio of the inner diameter of the oil seal fixer to the outer diameter thereof is 1: 1.30; the ratio of the inner diameter of the oil seal holder to its length is 1: 0.558. The fit clearance between the middle part of the middle cylinder body and the piston
Is larger than the fit clearance between the middle cylinder body and the piston close to the striking end
Oil return hole at the middle cylinder body washboard4, a check valve or a needle valve or other valve bodies capable of establishing high pressure are additionally arranged.
The foregoing is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; those skilled in the art can make many possible variations or modifications to the utility model using the methods and techniques disclosed above, or to modify equivalent embodiments without departing from the scope of the utility model. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.
Claims (4)
1. The utility model provides a well cylinder body assembly of hydraulic breaking hammer, includes well cylinder body (1), with well cylinder body clearance fit's piston (2), with piston and well cylinder body clearance fit's oil blanket fixer (3), its characterized in that: the ratio of the inner diameter of the middle cylinder body to the length thereof is 1: 5-1: 6; the ratio of the outer diameter of the piston to the length of the piston is 1:6 to 1: 7.
2. The middle cylinder assembly of a hydraulic demolition hammer as set forth in claim 1, wherein: the ratio of the inner diameter of the oil seal fixer to the outer diameter thereof is 1: 1.3-1: 1.4; the ratio of the inner diameter of the oil seal fixer to the length thereof is 1: 0.56-1: 0.6.
3. The middle cylinder assembly of a hydraulic demolition hammer as set forth in claim 1, wherein: the fit clearance between the middle part of the middle cylinder body and the piston
Is larger than the fit clearance between the middle cylinder body and the piston close to the striking end
4. The middle cylinder assembly of a hydraulic demolition hammer as set forth in claim 1, wherein: and a one-way valve or a needle valve or other valve bodies capable of establishing high pressure are additionally arranged on an oil return hole (4) at the middle cylinder body washboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121626614.2U CN215486952U (en) | 2021-07-17 | 2021-07-17 | Middle cylinder assembly of hydraulic breaking hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121626614.2U CN215486952U (en) | 2021-07-17 | 2021-07-17 | Middle cylinder assembly of hydraulic breaking hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215486952U true CN215486952U (en) | 2022-01-11 |
Family
ID=79727392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121626614.2U Active CN215486952U (en) | 2021-07-17 | 2021-07-17 | Middle cylinder assembly of hydraulic breaking hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215486952U (en) |
-
2021
- 2021-07-17 CN CN202121626614.2U patent/CN215486952U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240319 Address after: No. 3, No. 22, Huayuanli, Zhifu District, Yantai City, Shandong Province, China, 264000 yuan Patentee after: Mou Xu Country or region after: Zhong Guo Address before: 264000 No. 1-6 Huangwuxili Industrial Park, Zhifu District, Yantai City, Shandong Province Patentee before: YANTAI WANGYUAN HYDRAULIC Co.,Ltd. Country or region before: Zhong Guo |
|
| TR01 | Transfer of patent right |