CN201201226Y - Plunger piston of hydraulic hammer impacter - Google Patents
Plunger piston of hydraulic hammer impacter Download PDFInfo
- Publication number
- CN201201226Y CN201201226Y CNU2008200772685U CN200820077268U CN201201226Y CN 201201226 Y CN201201226 Y CN 201201226Y CN U2008200772685 U CNU2008200772685 U CN U2008200772685U CN 200820077268 U CN200820077268 U CN 200820077268U CN 201201226 Y CN201201226 Y CN 201201226Y
- Authority
- CN
- China
- Prior art keywords
- face
- impact plunger
- lug boss
- impacter
- hydraulic hammer
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an impact plunger for a hydraulic impacter, which belongs to the technical field of hydraulic impacter. The problem to be solved is to reduce the oil return resistance. The impact plunger for the hydraulic impacter adopts the proposal that the upper part of the impact plunger is positioned inside a nitrogen chamber; the middle of the impact plunger is positioned inside an intermediate cylinder body component; the lower part of the impact plunger is positioned inside a pressure oil reservoir; the impact plunger is a stepped shaft the middle of which is provided with a cylindrical lug boss and the diameter of the left and the right of which is equal; and the area of the upper end face and the lower end face of the cylindrical lug boss is the same. Because the area of the upper end face and the lower end face of the cylindrical lug boss of the impact plunger of the hydraulic impacter is the same, namely the area of the upper end face and the lower end face of the lug boss which has the function of a piston during the process of stroke and backward stroke is equal, the oil return resistance is minimum. Moreover, the impact plunger for the hydraulic impacter has the advantages of high work efficiency, small vibration and stability and reliability.
Description
Technical field
The ram piston of the utility model hydraulic hammer impactor belongs to hydraulic hammer impactor technical field.
Background technology
Hydraulic hammer comes out so far, passed by originally full hydraulic and the different stages of development of dynamic hydraulic combined formula afterwards and the development in recent years nitrogen explosion type operation principle of getting up.The ram piston of existing hydraulic hammer is the different multidiameter of two ends diameter, and the oil return resistance is big, and vibrations are big, and operating efficiency is lower.
The utility model content
Problem to be solved in the utility model is: a kind of ram piston of hydraulic hammer impactor is provided, reduces the oil return resistance, shake for a short time, increase work efficiency.
In order to address the above problem, the scheme that the wood utility model adopts is: the ram piston of hydraulic hammer impactor, the top of ram piston is positioned at nitrogen chamber, wherein portion is arranged in housing assembly, its underpart is arranged in pressure oil cavity, it is characterized in that: ram piston is that the centre is provided with cylinder boss, and its two ends, left and right sides are the multidiameter that diameter equates, the area of both ends of the surface is identical about the cylinder boss.
The ram piston of the utility model hydraulic hammer impactor compared with prior art has following beneficial effect:
Because the area of both ends of the surface is identical about the cylinder boss of the ram piston of the utility model hydraulic hammer impactor, area as both ends of the surface about the boss that plays piston action in stroke and the backhaul process equates, make oil return resistance minimum, high efficiency of the present utility model, vibrate little, reliable and stable.
Description of drawings
Fig. 1 is the structural representation of the ram piston of the utility model hydraulic hammer impactor;
Fig. 2 is the structural representation of Fig. 1 instantiation 1.
Wherein: 1 for ram piston, 2 for middle housing assembly, 3 for nitrogen chamber, 4 for automatic diverter valve, 5 for drill steel, 6 for cylinder boss, 7 for the oil return shoe cream room, 8 for pressure oil cavity, 9 be first spill port, 10 be first the feedback oilhole, 11 be second spill port, 12 be second the feedback oilhole, 13 be first fuel feed hole, 15 for oil outlet, 16 be that second fuel feed hole, 17 is the 3rd spill port.
The specific embodiment
The ram piston of hydraulic hammer impactor shown in Figure 1, the top of ram piston 1 is positioned at nitrogen chamber 3, wherein portion is arranged in housing assembly 2, its underpart is arranged in pressure oil cavity 8, it is characterized in that: ram piston 1 is provided with cylinder boss 6 for the centre, its two ends, left and right sides are the multidiameter that diameter equates, the area of cylinder boss both ends of the surface about in the of 6 is identical.
Fig. 2 is the structural representation of Fig. 1 instantiation 1, be specially the application of the utility model in the quick-fried hydraulic hammer impactor of nitrogen, the quick-fried hydraulic hammer impactor of nitrogen is by the ram piston 1 that is arranged in housing assembly 2 inner chambers, middle housing assembly 2, be arranged in the nitrogen chamber 3 of housing assembly 2 tops, hydraulic control valve 4 and the drill steel 5 that is arranged in housing assembly 2 belows, its structure is: ram piston 1 is provided with cylinder boss 6 for the centre, and the multidiameter that the diameter at two ends, the left and right sides is identical, the upper surface of cylinder boss 6, the left side of middle housing assembly 2 and nitrogen chamber 3 surrounds oil return shoe cream room 7, the lower surface of cylinder boss 6 and middle housing assembly 2 surround pressure oil cavity 8, oil return shoe cream room 7 is provided with first spill port 9 and the first feedback oilhole 10, pressure oil cavity 8 is provided with first fuel feed hole 13, first spill port 9 links to each other with the second feedback oilhole 12 with second spill port 11 of hydraulic control valve 4 by oil pipe respectively with the first feedback oilhole 10, first fuel feed hole 13 links to each other with the oil outlet 15 of hydraulic control valve 4 by oil pipe, hydraulic control valve 4 also is provided with second fuel feed hole 16 and the 3rd spill port 17, and the area of cylinder boss both ends of the surface about in the of 6 is identical.
Claims (1)
1. the ram piston of hydraulic hammer impactor, the top of ram piston is positioned at nitrogen chamber, wherein portion is arranged in housing assembly, its underpart is arranged in pressure oil cavity, it is characterized in that: ram piston is that the centre is provided with cylinder boss, its two ends, left and right sides are the multidiameter that diameter equates, the area of both ends of the surface is identical about the cylinder boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200772685U CN201201226Y (en) | 2008-05-19 | 2008-05-19 | Plunger piston of hydraulic hammer impacter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200772685U CN201201226Y (en) | 2008-05-19 | 2008-05-19 | Plunger piston of hydraulic hammer impacter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201201226Y true CN201201226Y (en) | 2009-03-04 |
Family
ID=40423538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200772685U Expired - Fee Related CN201201226Y (en) | 2008-05-19 | 2008-05-19 | Plunger piston of hydraulic hammer impacter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201201226Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344412A (en) * | 2015-09-16 | 2016-02-24 | 辽宁工程技术大学 | Mining hydraulic rapid breaking device |
| CN107013527A (en) * | 2015-10-22 | 2017-08-04 | 卡特彼勒公司 | Piston and Magnetic Bearing for Hydraulic Hammer |
-
2008
- 2008-05-19 CN CNU2008200772685U patent/CN201201226Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344412A (en) * | 2015-09-16 | 2016-02-24 | 辽宁工程技术大学 | Mining hydraulic rapid breaking device |
| CN107013527A (en) * | 2015-10-22 | 2017-08-04 | 卡特彼勒公司 | Piston and Magnetic Bearing for Hydraulic Hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20110519 |