CN110733002A - kinds of electric hammer cylinder - Google Patents
kinds of electric hammer cylinder Download PDFInfo
- Publication number
- CN110733002A CN110733002A CN201911196394.1A CN201911196394A CN110733002A CN 110733002 A CN110733002 A CN 110733002A CN 201911196394 A CN201911196394 A CN 201911196394A CN 110733002 A CN110733002 A CN 110733002A
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- Prior art keywords
- electric hammer
- cylinder
- cylinder body
- connecting lugs
- kinds
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- 238000003860 storage Methods 0.000 claims description 14
- 230000007704 transition Effects 0.000 abstract description 7
- 239000004519 grease Substances 0.000 description 5
- 238000003801 milling Methods 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention provides electric hammer cylinders, which belong to the field of electric tools and comprise a cylinder body, wherein a cylinder hole is arranged at the end of the cylinder body, two connecting lugs are arranged at the end of the cylinder body, connecting holes which are coaxially arranged are arranged on the two connecting lugs, the tops of the two connecting lugs are connected into a body through a connecting plate, the roots of the two connecting lugs are connected into a body and are in circular arc transition, the tops and the roots of the two connecting lugs are connected into a body, so that the structural strength of the electric hammer cylinders is greatly enhanced, meanwhile, the connection part is in circular arc transition, the transverse fracture of the roots of the connecting lugs and the connecting holes is effectively avoided, the service life of the electric hammer cylinders is far longer than that of other parts of an electric hammer, and even if other parts of the electric hammer cylinders are damaged and replaced, the electric hammer cylinders.
Description
Technical Field
The invention relates to the field of electric tools, in particular to electric hammer cylinders.
Background
The electric hammer is a common electric tool, the electric hammer cylinder is key parts of the electric hammer, which is usually made of aluminum, see patent with publication No. CN202241182U named single-knob four-function electric hammer, the electric hammer comprises an impact shaft, a cylinder, a motor shaft and a swing rod bearing, the cylinder is arranged on the impact shaft and connected with the swing rod bearing, and the cylinder component realizes the reciprocating motion in the inner hole of the rotating sleeve by the back and forth swing of the swing rod in the swing rod bearing.
The traditional electric hammer cylinder is shown in the attached drawing 1 and comprises a cylinder body 1, a cylinder hole 2 is arranged at the end of the cylinder body 1, two connecting lugs 3 are arranged at the other end of the cylinder body 1, connecting holes 4 which are coaxially arranged are arranged on the two connecting lugs 3, and the root parts of the two connecting lugs 3 are in right-angle transition.
In the daily use of the electric hammer, the electric hammer cylinder belongs to a quick-wear part, and usually, the electric hammer cylinder needs to be replaced for several times before the whole service life of the electric hammer is reached. Referring to fig. 2 and 3, the conventional electric hammer cylinder is highly susceptible to lateral breakage of the coupling hole 4 and breakage of the root of the coupling lug 3, thereby seriously affecting the overall use of the electric hammer.
Disclosure of Invention
In view of the above, the present invention aims to provide kinds of electric hammer cylinders, which are not easy to break at the connecting lug, and the service life of the electric hammer cylinder is far longer than that of other parts of the electric hammer.
In order to solve the technical problems, the electric hammer cylinder comprises a cylinder body, a cylinder hole is formed in the end of the cylinder body, two connecting lugs are arranged at the end of the cylinder body, connecting holes are coaxially formed in the two connecting lugs, and the tops of the two connecting lugs are connected into a body through a connecting plate.
Through the technical scheme, the two connecting lugs are formed into whole bodies, the structural strength of the two connecting lugs is effectively enhanced, and when the swing rod drives the rotating pin to move in the connecting hole, the stress on the two connecting lugs is distributed on each connecting lug by the connecting plate, so that the two connecting lugs are firm and are not easy to break.
Preferably, connecting plate lower surface middle part and connecting hole top parallel and level, the connecting plate both sides are equipped with the that outside tilt up set up and give way the breach.
Through the technical scheme, the connecting plate strengthens the structure of the connecting hole, so that the connecting hole is effectively prevented from being broken, a necessary space is reserved for swinging of the swing rod by the abdicating notch, the swing rod and the connecting plate are prevented from colliding and interfering, and the connecting lug and the connecting hole are protected from another angle.
Preferably, the angle between the abdicating notch and the horizontal line is 15-20 degrees.
Through above-mentioned technical scheme, effectual amplitude of oscillation according to the pendulum rod steps down, fully increases the connection scope of connecting plate and engaging lug, makes both structures more firm.
Preferably, the bottoms of the connecting holes on the two connecting lugs are connected into an body.
Through above-mentioned technical scheme, when having strengthened the intensity of connecting hole bottom, the effectual structural strength who strengthens engaging lug root, greatly increased the life of cylinder.
Preferably, two the engaging lug root both sides are even for the body and pass through the circular arc transition, and two engaging lug both sides root is equipped with the second breach of stepping down that outside downward sloping set up.
Through the technical scheme, the body range of the root of the connecting lug is increased, meanwhile, the stress concentration phenomenon of the root of the connecting lug is reduced through the arc transition mode, the structural strength of the root of the connecting lug is effectively enhanced, the root is not prone to fracture, the service life of the air cylinder is greatly prolonged, and necessary space is reserved for the swing of the swing rod through the second abdicating notch.
Preferably, the included angle between the second abdicating notch and the horizontal line is 15-20 degrees.
Through the technical scheme, the abdicating is effectively carried out according to the swing amplitude of the swing rod, the body connection range of the root part of the connecting lug is fully increased, and the structure of the connecting lug is firmer.
Preferably, an oil storage tank is arranged on the outer circular surface of the cylinder body.
Through above-mentioned technical scheme, grease or fluid can be stored to the oil storage tank, when the cylinder body motion, provides the lubrication for the cylinder body.
Preferably, the length direction of oil storage tank sets up along the axial of cylinder body, and the even circumferential distribution of oil storage tank in cylinder body excircle.
Through above-mentioned technical scheme, along the direction of motion of cylinder body, more be favorable to the circulation of grease or fluid.
Preferably, the oil storage groove is a spiral groove extending axially around the cylinder body.
Through above-mentioned technical scheme, the helicla flute encircles the cylinder body, can fully lubricate the cylinder body, and grease or fluid consumption is slow simultaneously.
The technical effects of the invention are mainly reflected in the following aspects:
1. the tops and the roots of the two connecting lugs are connected into bodies, so that the structural strength is greatly enhanced, and the connecting lugs are not easy to break at the roots;
2. the body ranges of the top and the root of the connecting lug and the connecting hole are fully increased through the abdicating notch according to the swing amplitude of the swing rod, so that the structural strength of the connecting lug and the connecting hole is greatly enhanced, and the root of the connecting lug is effectively prevented from being broken and the connecting hole is prevented from being transversely broken;
3. the motion smoothness of the cylinder body is greatly enhanced through the oil storage tank.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of a prior art cylinder lug root fracture pattern;
FIG. 3 is a schematic view of a transverse rupture of a cylinder connecting hole in the prior art;
FIG. 4 is a schematic structural view of example ;
FIG. 5 is a sectional view taken along line A-A of FIG. 4;
FIG. 6 is a schematic cross-sectional view of example , which is intended to show a cross-sectional A-A perspective structure;
FIG. 7 is a sectional view taken along line B-B of FIG. 4;
FIG. 8 is a schematic structural view of the second embodiment;
fig. 9 is a schematic structural diagram of the third embodiment.
The reference numbers of 1, cylinder body, 2, cylinder hole, 3, connecting lug, 4, connecting hole, 5, connecting plate, 6, abdicating notch, 7, second abdicating notch, 8, oil storage tank.
Detailed Description
The following detailed description is provided to facilitate an understanding and appreciation of the inventive concepts described herein in connection with the drawings.
Example electric hammer cylinder:
the electric hammer cylinders shown in the attached figures 4-7 comprise a cylinder body 1, a cylinder hole 2 is arranged at the end of the cylinder body 1, two connecting lugs 3 are arranged at the end, connecting holes 4 which are coaxially arranged are arranged on the two connecting lugs 3, and the tops of the two connecting lugs 3 are connected into a body through a connecting plate 5, wherein the middle of the lower surface of the connecting plate 5 is flush with the tops of the connecting holes 4, a abdicating notch 6 which is obliquely arranged upwards is arranged at the outer part of each connecting plate 5, a abdicating notch 6 leaves a necessary space for swinging of a swing rod to prevent the swing rod from colliding with the connecting plate 5, here, the connecting plate 5 and the cylinder body 1 are bodies, and the characteristic of the connecting plate 5 is formed in the machining process of the cylinder, so that the connecting plate 5 represents the connecting plates 3, therefore, the two connecting lugs 3 are equivalent to be whole, the structural strength of the two connecting lugs 3 is effectively enhanced, and when the swing rod drives a rotating pin to move in the connecting holes 4, stress borne by the two connecting.
The bottom of the connecting hole 4 on the two connecting lugs 3 is connected into bodies, the two sides of the root of each connecting lug 3 are also connected into bodies and are in arc transition, and the root parts of the two sides of each connecting lug 3 are provided with second abdicating notches 7 which are arranged in a downward inclined mode, so that the structural strength of the root of each connecting lug 3 is effectively enhanced while the strength of the bottom of the connecting hole 4 is enhanced, in addition, the stress concentration phenomenon of the root of each connecting lug 3 is reduced in the arc transition mode, and the service life of the air cylinder is greatly prolonged.
In the structure, the included angle a between the abdicating notch 6 and the horizontal line can be 15-20 degrees, and the included angle b between the second abdicating notch 7 and the horizontal line can be 15-20 degrees.
The processing steps of the electric hammer cylinder connecting lug part in the embodiment are as follows:
1. clamping a workpiece through a specific tool, and firstly milling two side surfaces of the end part of the cylinder through a milling process to form side surfaces of two connecting lugs;
2. then through holes are directly drilled at the connecting lugs at the end part of the cylinder through a drilling process, wherein the through holes are equivalent to the connecting holes at the two connecting lugs;
3. then, milling the two side surfaces milled in the step 1 respectively through a milling process, wherein a -th abdicating notch and a second abdicating notch are machined by clamping and processing through specific equipment;
4. finally, polishing and grinding the workpiece, and cleaning burrs; thereby obtaining the structure at the engaging lug in the present embodiment.
Example two, electric hammer cylinders:
referring to fig. 8, the difference between the second embodiment and the embodiment is that an oil storage tank 8 is disposed on the outer circumferential surface of the cylinder 1, the length direction of the oil storage tank 8 is disposed along the axial direction of the cylinder 1, and the oil storage tanks 8 are uniformly and circumferentially distributed on the outer circumference of the cylinder 1. the oil storage tank 8 can store grease or oil and provide lubrication for the cylinder 1 when the cylinder 1 moves.
Example three, electric hammer cylinders:
referring to fig. 9, the third embodiment is different from the second embodiment in that the oil reservoir 8 is a spiral groove extending axially around the cylinder 1. The spiral groove surrounds the cylinder body 1, so that the cylinder body 1 can be fully lubricated, and meanwhile, the consumption of grease or oil is slow.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.
Claims (9)
- The electric hammer cylinder comprises a cylinder body (1), a cylinder hole (2) is formed in a end of the cylinder body (1), two connecting lugs (3) are arranged at another end of the cylinder body, and connecting holes (4) which are coaxially formed in the two connecting lugs (3) are formed in the two connecting lugs (3), and the electric hammer cylinder is characterized in that the tops of the two connecting lugs (3) are connected into a body through connecting plates (5).
- 2. The kinds of electric hammer cylinders of claim 1, wherein the middle of the lower surface of the connecting plate (5) is flush with the top of the connecting hole (4), and both sides of the connecting plate (5) are provided with yielding notches (6) with the outer parts inclined upwards.
- 3. The kinds of electric hammer cylinders of claim 2, wherein the notch (6) is at an angle of 15-20 ° with the horizontal.
- 4. The kinds of electric hammer cylinders defined in claim 1, 2 or 3, wherein the bottoms of the connecting holes (4) on the two connecting lugs (3) are connected to form a body.
- 5. The kinds of electric hammer cylinders of claim 4, wherein the two sides of the root of the two connecting lugs (3) are connected into bodies and are transited through an arc, and the two sides of the root of the two connecting lugs (3) are provided with second abdicating notches (7) which are arranged downwards and externally.
- 6. The kinds of electric hammer cylinders of claim 5, wherein the angle between the second abdicating notch (7) and the horizontal line is 15-20 °.
- 7. The kinds of electric hammer cylinders defined in claim 1, wherein the outer circumferential surface of the cylinder body (1) is provided with an oil storage tank (8).
- 8. The kinds of electric hammer cylinders of claim 7, wherein the length direction of the oil storage tank (8) is arranged along the axial direction of the cylinder body (1), and the oil storage tank (8) is evenly and circumferentially distributed on the outer circle of the cylinder body (1).
- 9. type electric hammer cylinder according to claim 7, wherein the oil reservoir (8) is a spiral groove extending axially around the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196394.1A CN110733002A (en) | 2019-11-29 | 2019-11-29 | kinds of electric hammer cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911196394.1A CN110733002A (en) | 2019-11-29 | 2019-11-29 | kinds of electric hammer cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110733002A true CN110733002A (en) | 2020-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911196394.1A Pending CN110733002A (en) | 2019-11-29 | 2019-11-29 | kinds of electric hammer cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN110733002A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1413401A1 (en) * | 2002-10-23 | 2004-04-28 | Black & Decker Inc. | Piston and trunnion assembly in a power hammer and method of their assembly |
| CN202510236U (en) * | 2012-03-09 | 2012-10-31 | 成都桐林铸造实业有限公司 | Engine cylinder body equipped with cast crescent groove |
| CN203476913U (en) * | 2013-08-20 | 2014-03-12 | 中联重科股份有限公司 | Connecting structure |
| CN103758813A (en) * | 2013-12-23 | 2014-04-30 | 舒海法 | Air compressing mechanism of light electric hammer |
| CN205780036U (en) * | 2016-06-28 | 2016-12-07 | 贵州盘江矿山机械有限公司 | A kind of traveling box of coal mining machine is heightened oil cylinder and is connected ear mount |
| CN108083142A (en) * | 2017-10-31 | 2018-05-29 | 武汉船用机械有限责任公司 | A kind of arm support of oil-cylinder variable amplitude loop wheel machine |
| CN210968754U (en) * | 2019-11-29 | 2020-07-10 | 温岭市百邦电动工具配件厂(普通合伙) | Electric hammer cylinder |
-
2019
- 2019-11-29 CN CN201911196394.1A patent/CN110733002A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1413401A1 (en) * | 2002-10-23 | 2004-04-28 | Black & Decker Inc. | Piston and trunnion assembly in a power hammer and method of their assembly |
| CN202510236U (en) * | 2012-03-09 | 2012-10-31 | 成都桐林铸造实业有限公司 | Engine cylinder body equipped with cast crescent groove |
| CN203476913U (en) * | 2013-08-20 | 2014-03-12 | 中联重科股份有限公司 | Connecting structure |
| CN103758813A (en) * | 2013-12-23 | 2014-04-30 | 舒海法 | Air compressing mechanism of light electric hammer |
| CN205780036U (en) * | 2016-06-28 | 2016-12-07 | 贵州盘江矿山机械有限公司 | A kind of traveling box of coal mining machine is heightened oil cylinder and is connected ear mount |
| CN108083142A (en) * | 2017-10-31 | 2018-05-29 | 武汉船用机械有限责任公司 | A kind of arm support of oil-cylinder variable amplitude loop wheel machine |
| CN210968754U (en) * | 2019-11-29 | 2020-07-10 | 温岭市百邦电动工具配件厂(普通合伙) | Electric hammer cylinder |
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