CN109531513A - A kind of pneumatic tool - Google Patents
A kind of pneumatic tool Download PDFInfo
- Publication number
- CN109531513A CN109531513A CN201910027553.9A CN201910027553A CN109531513A CN 109531513 A CN109531513 A CN 109531513A CN 201910027553 A CN201910027553 A CN 201910027553A CN 109531513 A CN109531513 A CN 109531513A
- Authority
- CN
- China
- Prior art keywords
- eccentric
- shell
- air inlet
- working cylinder
- pneumatic tool
- 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
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 10
- 238000004880 explosion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004663 powder metallurgy Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Abstract
The present invention provides a kind of pneumatic tool, comprising: shell and is mounted on the intracorporal impact group of the shell, armature spindle, working cylinder and commutation regulating valve, the working cylinder is sleeved on the armature spindle；Described shell one end is provided with the eccentric chamber with the impact group bias, and the armature spindle both ends are equipped with eccentric eccentric front end lid and eccentric rear end cap；It is provided with symmetrical positive air inlet duct and reversed air inlet duct on the outer circumference surface of the working cylinder, multiple air passing holes are laterally evenly equipped at the top of the working cylinder, are provided with exhaust passage on the inner wall of the bias chamber two sides.The working cylinder of pneumatic tool of the present invention is seamless steel pipe, is mounted on by eccentric front end lid and eccentric rear end cap eccentric intracavitary, and whole intensity and wearability is good；High pressure gas needs to be discharged from gas outlet again by air passing hole and exhaust passage when work, can be effectively reduced noise.
Description
Technical field
The present invention relates to a kind of pneumatic tools.
Background technique
Pneumatic tool is mainly that compressed air is utilized to drive air motor and externally a kind of tool of output kinetic energy work.Wind
Big gun is one kind of pneumatic tool, because noise is bigger such as report when it works, is gained the name, also referred to as pneumatic impact spanner.
Pneumatic wrench is also referred to as ratchet wrench and electric tool aggregate, and mainly one kind provides high torque output with the smallest consumption
Tool.It allows the object with certain mass to accelerate rotation by lasting power source, and then moment hits force-output shaft,
It is hereby achieved that bigger torque exports.Its power resources be air compressor machine output compressed air, when compressed air into
Enter impact gun cylinder to drive the wheel rotation of the inside later and generate rotary power.Pneumatic pick is also one kind of pneumatic tool, is to press
Contracting air is power, using the hand-held construction equipment of percussion crushing hard objects, therefore it is required that it is compact-sized, it takes with light
Just.Pneumatic pick is made of valve actuating mechanism, beater mechanism and pick rod etc..Beater mechanism is a heavy wall cylinder, inside has a jump bit can
It is reciprocating along cylinder inner wall.The front end of the tail portion insertion cylinder of pick rod, cylinder rear end is equipped with distribution clack box.
Current some pneumatic tools have following drawback: 1, quality weight (especially one-inch impact gun)；2, the service life is short, passes
The eccentric cylinder of system is powdered metallurgical material, and intensity and wearability are poor；3, noise is big, traditional pneumatic impact spanner,
High pressure gas is expelled directly out body, and the explosion of generation is larger；4, torsion is low.
Summary of the invention
(1) technical problems to be solved
Eccentric chamber, working cylinder are provided in a kind of the technical problem to be solved in the present invention is to provide structures simple, shell
It is made of seamless steel pipe, whole intensity and wearability is good, work noise is low pneumatic tool.
(2) technical solution
In order to solve the above technical problems, the present invention provides a kind of pneumatic tool, comprising: shell and be mounted on the shell
Interior impact group, armature spindle, working cylinder and commutation regulating valve, the working cylinder are sleeved on the armature spindle；The shell
Body one end is provided with the eccentric chamber with the impact group bias, and the armature spindle both ends are equipped with eccentric eccentric front end lid and partially
Heart rear end cap, the working cylinder, the eccentric front end lid and the eccentric rear end cap difference location and installation are in the eccentric chamber
It is interior；Symmetrical positive air inlet duct and reversed air inlet duct, the work gas are provided on the outer circumference surface of the working cylinder
It is laterally evenly equipped with multiple air passing holes at the top of cylinder, is provided with exhaust passage on the inner wall of the bias chamber two sides；When forward direction work, outside
Air inlet, the positive air inlet duct, the air passing hole and the exhaust passage of the high pressure gas in portion successively through the shell, from
The gas outlet of the shell is discharged.External high pressure gas needs the exhaust passage on the outside of working cylinder described in pile warp could be from institute
Gas outlet discharge is stated, is buffered by the flat of multiple air passing holes, without being expelled directly out for explosion, hence it is evident that reduce and make an uproar
Sound pollution meets current environmentally friendly trend.
Further, be provided on the shell positive air inlet corresponding with the positive air inlet duct and with it is described anti-
To the corresponding reversed air inlet of air inlet duct；When forward direction work, the air inlet is connected to the positive air inlet；Reverse operation
When, the commutation regulating valve is rotated, is connected to the air inlet with the reversed air inlet, external high pressure gas is successively through institute
Air inlet, the reversed air inlet duct, the air passing hole and the exhaust passage for stating shell are arranged from the gas outlet of the shell
Out.
Further, the installation cavity for placing the impact group, the bias chamber and the installation are provided on the shell
Chamber eccentric setting；The impact group passes through spline fitted and the rotor axis connection.
Further, annular equidistantly distributed has blade on the armature spindle.
Further, it is provided with guide slot on the eccentric chamber, is provided with directed flange at the top of the working cylinder, it is described
Directed flange is placed in the guide slot.
Further, the eccentric front end covers the cover flange being provided with guide slot cooperation.
Further, drive end bearing bracket and rear end cap are installed on the shell, installed between the shell and the armature spindle
There is preceding end bearing, rear end bearing is installed between the armature spindle and eccentric rear end cap；The drive end bearing bracket and the impact group it
Between buffer gasket is installed.
Further, the working cylinder is seamless steel pipe, and traditional cylinder is eccentric setting, therefore can only pass through powder
The method of last metallurgy is made, and blade when working on armature spindle can carry out contact friction with cylinder, therefore powder metallurgy is made
Cylinder intensity and wearability it is poor, the working cylinder in the present embodiment be it is uninfluenced, pass through eccentric front end lid and bias
The bias that rear end cap is mounted on shell is intracavitary, therefore no setting is required into eccentric shape for the cavity of working cylinder, can by stainless steel without
Seam steel pipe is made, and volume can be significantly reduced under equality strength, reduces whole weight, the volume of this part reduction can increase
It is added in armature spindle diametrically, can thus there is higher volume of rotor, just there is bigger power to go driving impact group, it can
To export bigger torsion.
(3) beneficial effect
The working cylinder of pneumatic tool of the present invention is mounted on the eccentric chamber of shell by eccentric front end lid and eccentric rear end cap
Interior, the intensity and wearability of working cylinder are good；High pressure gas is needed by air passing hole and exhaust passage again from shell when work
Gas outlet discharge, can be effectively reduced noise, hence it is evident that reduce noise pollution.
Detailed description of the invention
Fig. 1 is the explosive view of pneumatic tool of the present invention；
Fig. 2 is the structural schematic diagram of pneumatic tool of the present invention；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the perspective view after pneumatic tool shell cutting of the present invention；
Fig. 5 is the perspective view of pneumatic tool working cylinder of the present invention；
Fig. 6 is the perspective view of pneumatic tool shell bias chamber of the present invention side；
Fig. 7 is the structural schematic diagram that pneumatic tool of the present invention omits rear end cap and eccentric rear end cover；
Wherein: 1 be shell, 2 be impact group, 3 be armature spindle, 4 be working cylinder, 5 be commutation regulating valve, 6 be eccentric chamber,
7 it is eccentric front end lid, 8 be eccentric rear end cap, 9 be positive air inlet duct, 10 be reversed air inlet duct, 11 be air passing hole, 12 is exhaust
Channel, 13 be air inlet, 14 be gas outlet, 15 be positive air inlet, 16 be reversed air inlet, 17 be installation cavity, 18 be blade,
19 it is guide slot, 20 be directed flange, 21 be cover flange, 22 be drive end bearing bracket, 23 be rear end cap, 24 be preceding end bearing, 25 is
Rear end bearing, 26 are buffer gasket.
Specific embodiment
Refering to fig. 1~Fig. 7, the present invention provide a kind of pneumatic tool, comprising: shell 1 and the impact being mounted in shell 1
Group 2, armature spindle 3, working cylinder 4 and commutation regulating valve 5, working cylinder 4 are sleeved on armature spindle 3；Refering to Fig. 6 and Fig. 7, shell
1 one end is provided with the eccentric chamber 6 eccentric with impact group 2, after 3 both ends of armature spindle are equipped with eccentric eccentric front end lid 7 and bias
End cap 8, working cylinder 4, eccentric front end lid 7 and eccentric rear end cap 8 distinguish location and installation in eccentric chamber 6；Outside working cylinder 4
Symmetrical positive air inlet duct 9 and reversed air inlet duct 10 are provided on periphery, 4 top of working cylinder is laterally evenly equipped with multiple
Air passing hole 11 is provided with exhaust passage 12 on the inner wall of eccentric 6 two sides of chamber；When forward direction work, external high pressure gas is successively passed through
The air inlet 13 of shell 1, positive air inlet duct 9, air passing hole 11 and exhaust passage 12, are discharged from the gas outlet of shell 1 14.External
High pressure gas needs the exhaust passage 12 in 4 outside of pile warp working cylinder that could be discharged from gas outlet 14, passes through multiple air passing holes 11
Flat buffering, without being expelled directly out for explosion, hence it is evident that reduce noise pollution, meet current environmentally friendly trend.
Refering to Fig. 2 and Fig. 6, be provided on shell 1 positive air inlet 15 corresponding with positive air inlet duct 9 and with reversely into
The corresponding reversed air inlet 16 of air drain 10；When forward direction work, air inlet 13 is connected to positive air inlet 15；When reverse operation, turn
Move to regulating valve 5, is connected to air inlet 13 with reversed air inlet 16, air inlet of the external high pressure gas successively through shell 1
13, reversed air inlet duct 10, air passing hole 11 and exhaust passage 12 are discharged from the gas outlet of shell 1 14.
Refering to Fig. 4, the installation cavity 17 for placing impact group 2, eccentric chamber 6 and 17 eccentric setting of installation cavity are provided on shell 1；
Impact group 2 is connect by spline fitted with armature spindle 3.
Refering to fig. 1 and Fig. 2, annular equidistantly distributed has blade 18 on armature spindle 3, and work of the blade in working cylinder is former
It manages identical as the working principle of traditional pneumatic tool.
Refering to Fig. 3, Fig. 4 and Fig. 5, it is provided with guide slot 19 on eccentric chamber 6, is provided with directed flange at the top of working cylinder 4
20, directed flange 20 is placed in guide slot 19.
Refering to fig. 1, the cover flange 21 cooperated with guide slot 19 is provided on eccentric front end lid 7.
Refering to fig. 1 and Fig. 2, drive end bearing bracket 22 and rear end cap 23 are installed on shell 1, are equipped between shell 1 and armature spindle 3
Preceding end bearing 24 is equipped with rear end bearing 25 between armature spindle 3 and eccentric rear end cap 8；It is installed between drive end bearing bracket 22 and impact group 2
There is buffer gasket 26.
Wherein, working cylinder 4 is seamless steel pipe.Traditional cylinder is eccentric setting, therefore can only pass through powder metallurgy
Method be made, and blade when working on armature spindle can carry out contact friction, therefore cylinder made of powder metallurgy with cylinder
Intensity and wearability it is poor, the working cylinder in the present embodiment be it is uninfluenced, pass through eccentric front end lid and eccentric rear end cap
The bias for being mounted on shell is intracavitary, therefore no setting is required into eccentric shape for the cavity of working cylinder, can be by stainless-steel seamless pipe
It is made, volume can be significantly reduced under equality strength, reduce whole weight, the volume of this part reduction, which can increase, to be turned
Sub- axis diametrically, can thus there is higher volume of rotor, just have bigger power to go driving impact group, can export
Bigger torsion.
The working cylinder of pneumatic tool of the present invention is mounted on the eccentric chamber of shell by eccentric front end lid and eccentric rear end cap
Interior, the intensity and wearability of working cylinder are good；High pressure gas is needed by air passing hole and exhaust passage again from shell when work
Gas outlet discharge, can be effectively reduced noise, hence it is evident that reduce noise pollution.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of pneumatic tool characterized by comprising shell (1) and the impact group (2) being mounted in the shell (1),
Armature spindle (3), working cylinder (4) and commutation regulating valve (5), the working cylinder (4) are sleeved on the armature spindle (3)；Institute
It states shell (1) one end and is provided with eccentric chamber (6) with impact group (2) bias, armature spindle (3) both ends are equipped with bias
Eccentric front end lid (7) and eccentric rear end cap (8)；Multiple air passing holes (11), institute are laterally evenly equipped at the top of the working cylinder (4)
It states and is provided with exhaust passage (12) on the inner wall of eccentric chamber (6) two sides.
2. pneumatic tool as described in claim 1, which is characterized in that the working cylinder (4), the eccentric front end lid (7)
Location and installation is interior in the eccentric chamber (6) respectively with the eccentric rear end cap (8)；On the outer circumference surface of the working cylinder (4)
It is provided with symmetrical positive air inlet duct (9) and reversed air inlet duct (10)；When forward direction work, external high pressure gas is successively passed through
The air inlet (13) of the shell (1), the positive air inlet duct (9), the air passing hole (11) and the exhaust passage (12), from
The gas outlet (14) of the shell (1) is discharged.
3. pneumatic tool as claimed in claim 2, which is characterized in that the working cylinder (4) is seamless steel pipe.
4. pneumatic tool as claimed in claim 3, which is characterized in that be provided on the shell (1) and the positive air inlet
The corresponding positive air inlet (15) of slot (9) and reversed air inlet (16) corresponding with reversed air inlet duct (10)；Reversed work
When making, the commutation regulating valve (5) is rotated, is connected to the air inlet (13) with the reversed air inlet (16), external height
Calm the anger air inlet (13), the reversed air inlet duct (10), the air passing hole (11) and the row of the body successively through the shell (1)
Gas channel (12) is discharged from the gas outlet (14) of the shell (1).
5. pneumatic tool as claimed in claim 3, which is characterized in that be provided on the shell (1) and place the impact group
(2) installation cavity (17), the bias chamber (6) and the installation cavity (17) eccentric setting；The impact group (2) is matched by spline
Conjunction is connect with the armature spindle (3).
6. pneumatic tool as claimed in claim 3, which is characterized in that annular equidistantly distributed has leaf on the armature spindle (3)
Piece (18).
7. pneumatic tool as claimed in claim 3, which is characterized in that be provided with guide slot (19), institute on the bias chamber (6)
It states and is provided with directed flange (20) at the top of working cylinder (4), the directed flange (20) is placed in the guide slot (19).
8. pneumatic tool as claimed in claim 3, which is characterized in that be provided on the eccentric front end lid (7) with it is described fixed
The cover flange (21) cooperated to slot (19).
9. pneumatic tool as claimed in any one of claims 1 to 8, which is characterized in that be equipped with drive end bearing bracket on the shell (1)
(22) and rear end cap (23), preceding end bearing (24), the armature spindle are installed between the shell (1) and the armature spindle (3)
(3) rear end bearing (25) are installed between eccentric rear end cap (8)；Pacify between the drive end bearing bracket (22) and the impact group (2)
Equipped with buffer gasket (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027553.9A CN109531513A (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910027553.9A CN109531513A (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109531513A true CN109531513A (en) | 2019-03-29 |
Family
ID=65835264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910027553.9A Pending CN109531513A (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109531513A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562798A (en) * | 1982-12-23 | 1986-01-07 | Noord-Nederlandsche Machinefabriek B.V. | Cylinder head locking construction |
| US5992539A (en) * | 1999-03-16 | 1999-11-30 | Lin; Chen-Yang | Pneumatically driven power tool |
| US6059049A (en) * | 1999-03-09 | 2000-05-09 | Lin; Chen-Yang | Air cylinder apparatus for a pneumatically driven power tool |
| CN1396855A (en) * | 2000-01-27 | 2003-02-12 | S.P.空气株式会社 | Pneumatic rotary tool |
| DE20317393U1 (en) * | 2003-11-12 | 2004-01-15 | Hong Bing Pneumatic Industry Co., Ltd., Shen Kang Hsiang | Pneumatic hand tool has a modular assembly with a rear control for adjustable forward and reverse drive via a variable valve and integral air ducts in the rear cover |
| CN2897564Y (en) * | 2006-02-15 | 2007-05-09 | 圣丰气动股份有限公司 | Pneumatic tool with pressure-stabilizing torsion limitation |
| CN2928394Y (en) * | 2006-08-01 | 2007-08-01 | 陈吉雄 | Compact pneumatic spanner |
| CN200939578Y (en) * | 2006-06-06 | 2007-08-29 | 北京长宇利华液压系统工程设计有限公司 | Viberating holes grinding head |
| JP2007216317A (en) * | 2006-02-14 | 2007-08-30 | ▲めい▼迪企業股▲ふん▼有限公司 | Cylinder structure of pneumatic tool |
| CN101135327A (en) * | 2006-09-01 | 2008-03-05 | 郑雪梅 | Pneumatic motor |
| JP2008183630A (en) * | 2007-01-26 | 2008-08-14 | Shinwa Cho | Motor part structure of air tool |
| CN201184216Y (en) * | 2008-03-07 | 2009-01-21 | 郑雪梅 | Pneumatic motor and pneumatic wrench |
| CN102513968A (en) * | 2011-12-19 | 2012-06-27 | 太原重工股份有限公司 | Device for locking and detaching oil film bearing of rolling mill |
| CN105415297A (en) * | 2015-12-02 | 2016-03-23 | 江苏东成机电工具有限公司 | Handheld multifunctional electric hammer |
| CN209256858U (en) * | 2019-01-11 | 2019-08-16 | 周宏� | A kind of pneumatic tool |
-
2019
- 2019-01-11 CN CN201910027553.9A patent/CN109531513A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562798A (en) * | 1982-12-23 | 1986-01-07 | Noord-Nederlandsche Machinefabriek B.V. | Cylinder head locking construction |
| US6059049A (en) * | 1999-03-09 | 2000-05-09 | Lin; Chen-Yang | Air cylinder apparatus for a pneumatically driven power tool |
| US5992539A (en) * | 1999-03-16 | 1999-11-30 | Lin; Chen-Yang | Pneumatically driven power tool |
| CN1396855A (en) * | 2000-01-27 | 2003-02-12 | S.P.空气株式会社 | Pneumatic rotary tool |
| DE20317393U1 (en) * | 2003-11-12 | 2004-01-15 | Hong Bing Pneumatic Industry Co., Ltd., Shen Kang Hsiang | Pneumatic hand tool has a modular assembly with a rear control for adjustable forward and reverse drive via a variable valve and integral air ducts in the rear cover |
| JP2007216317A (en) * | 2006-02-14 | 2007-08-30 | ▲めい▼迪企業股▲ふん▼有限公司 | Cylinder structure of pneumatic tool |
| CN2897564Y (en) * | 2006-02-15 | 2007-05-09 | 圣丰气动股份有限公司 | Pneumatic tool with pressure-stabilizing torsion limitation |
| CN200939578Y (en) * | 2006-06-06 | 2007-08-29 | 北京长宇利华液压系统工程设计有限公司 | Viberating holes grinding head |
| CN2928394Y (en) * | 2006-08-01 | 2007-08-01 | 陈吉雄 | Compact pneumatic spanner |
| CN101135327A (en) * | 2006-09-01 | 2008-03-05 | 郑雪梅 | Pneumatic motor |
| JP2008183630A (en) * | 2007-01-26 | 2008-08-14 | Shinwa Cho | Motor part structure of air tool |
| CN201184216Y (en) * | 2008-03-07 | 2009-01-21 | 郑雪梅 | Pneumatic motor and pneumatic wrench |
| CN102513968A (en) * | 2011-12-19 | 2012-06-27 | 太原重工股份有限公司 | Device for locking and detaching oil film bearing of rolling mill |
| CN105415297A (en) * | 2015-12-02 | 2016-03-23 | 江苏东成机电工具有限公司 | Handheld multifunctional electric hammer |
| CN209256858U (en) * | 2019-01-11 | 2019-08-16 | 周宏� | A kind of pneumatic tool |
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