CN107199306A - A kind of structure of hammer stem - Google Patents
A kind of structure of hammer stem Download PDFInfo
- Publication number
- CN107199306A CN107199306A CN201710620782.2A CN201710620782A CN107199306A CN 107199306 A CN107199306 A CN 107199306A CN 201710620782 A CN201710620782 A CN 201710620782A CN 107199306 A CN107199306 A CN 107199306A
- Authority
- CN
- China
- Prior art keywords
- hammer stem
- shaft
- holding tank
- piston
- circular arc
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/06—Hammers tups; Anvils; Anvil blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
Abstract
A kind of structure of hammer stem, the technical scheme used is：On the basis of existing air hammer stem structure, circular arc type technology groove is formed with the joint portion of shaft and piston is cylindrical, the hole that bottom is semi circular surface is formed with the center of shaft, the holding tank of dove-tail form is formed with the bottom of shaft, the both sides angle of holding tank is circular arc, the present invention can be effectively prevented from the damage of the main force part of hammer stem caused by stress concentration, extend the service life of hammer stem.
Description
Technical field
The present invention relates to pneumatic hammer, and in particular to the structure of air hammer lever, belongs to pneumatic hammer technical field.
Background technology
Hammer stem is the important spare part of pneumatic hammer, and existing air hammer lever occurs hammer stem in use, often and broken
The phenomenon split, typically occur at the position of all fractures it is dry very with piston combining part, tup holding tank and endoporus bottom position,
Cause the main cause of this phenomenon except hammer stem bears larger impulsive force reason at work and in addition to, also with existing hammer stem
It is unreasonable in structure to have relation.
The content of the invention
It is an object of the invention to：Easily cause what hammer stem was damaged due to unreasonable in structure for existing air hammer lever
Defect, the present invention proposes that one kind, to the improved hammer stem structure of existing hammer stem, overcomes the drawbacks described above present in existing hammer stem.
The present invention realizes that the technical scheme that above-mentioned purpose is used is：On the basis of existing air hammer stem structure, in bar
Technology groove is formed with the joint portion of body and piston is cylindrical, the cross sectional shape of described technology groove is circular arc type；At the center of shaft
Hole is formed with, the bottom in hole is semi circular surface, the holding tank of dove-tail form is formed with the bottom of shaft, the both sides angle of the holding tank is
Circular arc.
Beneficial effect：The present invention is due to that using after the above method, can be effectively prevented from caused by stress concentration
The damage of the main force part of hammer stem, extends the service life of hammer stem.
Brief description of the drawings
Accompanying drawing 1 is the structure principle chart of the present invention.
Shown in figure：1st, shaft；2nd, piston；3rd, technology groove；4th, semi circular surface；5th, holding tank；6th, circular arc；7th, hole.
Embodiment
A kind of structure of the structure of hammer stem, it includes shaft（1）With piston（2）, it includes shaft（1）With piston（2）It is in
Conjoined structure, is made of forging method, in shaft（1）With piston（2）Joint portion it is cylindrical on be formed with technology groove（3）Described
Technology groove（3）Cross sectional shape be circular arc type；In shaft（1）Center be formed with hole（7）, hole（7）Bottom be semi circular surface（4）,
In shaft（1）Bottom be formed with the holding tank of dove-tail form（5）, the holding tank（5）Both sides angle be circular arc（6）.
Claims (3)
1. a kind of structure of hammer stem, it includes shaft（1）With piston（2）, include shaft（1）With piston（2）In conjoined structure, in bar
Body（1）With piston（2）Joint portion it is cylindrical on be formed with technology groove（3）, it is characterised in that：Technology groove（3）Cross sectional shape for circle
Camber.
2. a kind of structure of hammer stem according to claim 1, it is characterised in that：In shaft（1）Center be formed with hole（7）,
Hole（7）Bottom be semi circular surface（4）.
3. a kind of structure of hammer stem according to claim 1, it is characterised in that：In shaft（1）Bottom be formed with dove-tail form
Holding tank（5）, holding tank（5）Both sides angle be circular arc（6）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620782.2A CN107199306A (en) | 2017-07-27 | 2017-07-27 | A kind of structure of hammer stem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710620782.2A CN107199306A (en) | 2017-07-27 | 2017-07-27 | A kind of structure of hammer stem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107199306A true CN107199306A (en) | 2017-09-26 |
Family
ID=59912027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710620782.2A Pending CN107199306A (en) | 2017-07-27 | 2017-07-27 | A kind of structure of hammer stem |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107199306A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB360801A (en) * | 1930-06-02 | 1931-11-12 | Beche & Grohs G M B H | Improvements in and relating to the production of hollow rammers of steel for steam or air hammers |
| US3971244A (en) * | 1973-03-05 | 1976-07-27 | Hans Zengerer | Impact tool |
| CN1036349A (en) * | 1988-04-07 | 1989-10-18 | 林云仁 | Combined multifunction hammer shaft of forging hammer |
| CN201537671U (en) * | 2009-11-06 | 2010-08-04 | 芜湖新达锻造有限公司 | Hammer rod structure of electrohydraulic hammer |
| CN204867251U (en) * | 2015-06-30 | 2015-12-16 | 安阳锻压数控设备有限公司 | Hammering block piece does not advance novel pneumatic hammer structure of helical pitch |
| CN205989019U (en) * | 2016-07-29 | 2017-03-01 | 宜兴市鑫锤锻压设备有限公司 | A kind of air hammer lever fairlead |
-
2017
- 2017-07-27 CN CN201710620782.2A patent/CN107199306A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB360801A (en) * | 1930-06-02 | 1931-11-12 | Beche & Grohs G M B H | Improvements in and relating to the production of hollow rammers of steel for steam or air hammers |
| US3971244A (en) * | 1973-03-05 | 1976-07-27 | Hans Zengerer | Impact tool |
| CN1036349A (en) * | 1988-04-07 | 1989-10-18 | 林云仁 | Combined multifunction hammer shaft of forging hammer |
| CN201537671U (en) * | 2009-11-06 | 2010-08-04 | 芜湖新达锻造有限公司 | Hammer rod structure of electrohydraulic hammer |
| CN204867251U (en) * | 2015-06-30 | 2015-12-16 | 安阳锻压数控设备有限公司 | Hammering block piece does not advance novel pneumatic hammer structure of helical pitch |
| CN205989019U (en) * | 2016-07-29 | 2017-03-01 | 宜兴市鑫锤锻压设备有限公司 | A kind of air hammer lever fairlead |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170926 |