CN209256858U - A kind of pneumatic tool - Google Patents
A kind of pneumatic tool Download PDFInfo
- Publication number
- CN209256858U CN209256858U CN201920047011.3U CN201920047011U CN209256858U CN 209256858 U CN209256858 U CN 209256858U CN 201920047011 U CN201920047011 U CN 201920047011U CN 209256858 U CN209256858 U CN 209256858U
- 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.)
- Expired - Fee Related
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
- 239000000872 buffer Substances 0.000 claims description 5
- 238000004880 explosion Methods 0.000 description 3
- 230000007246 mechanism Effects 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
- 230000009467 reduction 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
- 230000008859 change 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Abstract
The utility model 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 the utility model pneumatic tool 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 utility model 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.
Utility model content
(1) technical problems to be solved
Eccentric chamber, work are provided in a kind of the technical problem to be solved by the present invention is to provide structures simple, shell
Cylinder 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 utility model provides a kind of pneumatic tool, comprising: shell and be mounted on described
The intracorporal impact group of shell, armature spindle, working cylinder and commutation regulating valve, the working cylinder are sleeved on the armature spindle；Institute
It states shell one end and is provided with eccentric chamber with the impact group bias, the armature spindle both ends are equipped with eccentric eccentric front end lid
With eccentric rear end cap, the working cylinder, the eccentric front end lid and the eccentric rear end cap difference location and installation are described inclined
In the chambers of the heart；Symmetrical positive air inlet duct and reversed air inlet duct, the work are provided on the outer circumference surface of the working cylinder
Make cylinder head and be laterally evenly equipped with multiple air passing holes, is provided with exhaust passage on the inner wall of the bias chamber two sides；Forward direction work
When, air inlet, the positive air inlet duct, the air passing hole and the exhaust of the external high pressure gas successively through the shell are led to
Road is discharged from the gas outlet of the shell.External high pressure gas needs the exhaust passage on the outside of working cylinder described in pile warp
It can be discharged, be buffered by the flat of multiple air passing holes, without being expelled directly out for explosion, hence it is evident that drop from the gas outlet
Low noise 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 the utility model pneumatic tool is mounted on the inclined of shell by eccentric front end lid and eccentric rear end cap
In the chambers of the heart, 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
The gas outlet of body is discharged, and 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 the utility model pneumatic tool；
Fig. 2 is the structural schematic diagram of the utility model pneumatic tool；
Fig. 3 is the enlarged drawing of A in Fig. 2；
Fig. 4 is the perspective view after the shell cutting of the utility model pneumatic tool；
Fig. 5 is the perspective view of the utility model pneumatic tool working cylinder；
Fig. 6 is the perspective view of the utility model pneumatic tool shell bias chamber side；
Fig. 7 is the structural schematic diagram that the utility model pneumatic tool 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 utility model provide a kind of pneumatic tool, comprising: shell 1 and are mounted in shell 1
Impact 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,
1 one end of shell is provided with the eccentric chamber 6 eccentric with impact group 2, and 3 both ends of armature spindle are equipped with eccentric eccentric front end lid 7 and partially
Heart rear 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；Working cylinder 4
Outer circumference surface on be provided with symmetrical positive air inlet duct 9 and reversed air inlet duct 10,4 top of working cylinder is laterally evenly equipped with
Multiple air passing holes 11 are provided with exhaust passage 12 on the inner wall of eccentric 6 two sides of chamber；Forward direction work when, external high pressure gas according to
The secondary air inlet 13 through 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.Outside
The high pressure gas in portion needs the exhaust passage 12 in 4 outside of pile warp working cylinder that could be discharged from gas outlet 14, crosses gas by multiple
The flat in hole 11 buffers, without being expelled directly out for explosion, hence it is evident that reduces noise pollution, meets 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 the utility model pneumatic tool is mounted on the inclined of shell by eccentric front end lid and eccentric rear end cap
In the chambers of the heart, 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
The gas outlet of body is discharged, and can be effectively reduced noise, hence it is evident that reduce noise pollution.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change
It also should be regarded as the protection scope of the utility model into retouching.
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 7, 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 |
|---|---|---|---|
| CN201920047011.3U CN209256858U (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920047011.3U CN209256858U (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209256858U true CN209256858U (en) | 2019-08-16 |
Family
ID=67566305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920047011.3U Expired - Fee Related CN209256858U (en) | 2019-01-11 | 2019-01-11 | A kind of pneumatic tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209256858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531513A (en) * | 2019-01-11 | 2019-03-29 | 周宏� | A kind of pneumatic tool |
-
2019
- 2019-01-11 CN CN201920047011.3U patent/CN209256858U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109531513A (en) * | 2019-01-11 | 2019-03-29 | 周宏� | A kind of pneumatic tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8579043B2 (en) | Battery-powered power tools | |
| CN102744700A (en) | Impact ratchet wrench | |
| CN206245745U (en) | Hand-held concrete dabbing machine | |
| CN209256858U (en) | A kind of pneumatic tool | |
| CN103552021B (en) | The energy-storage impact-type pneumatic wrench improved | |
| CN102059680A (en) | Nailing gun | |
| AU2009244202B2 (en) | Drive assembly for a power tool | |
| CN108098694A (en) | Power tool | |
| CN101708589B (en) | Pneumatic turbine type hand-held mill with high torque | |
| CN109531513A (en) | A kind of pneumatic tool | |
| CN201609857U (en) | Handheld drill stem inner bore sander | |
| CN102900355B (en) | Quick-drill pneumatic hard rock drill | |
| CN203542480U (en) | Impact type pneumatic wrench with hammer body with clutch mechanism | |
| CN202878208U (en) | Impact ratchet wrench | |
| US20180354117A1 (en) | Pneumatic rotary hand tool with rotating impact kinetic energy | |
| CN205604052U (en) | Highway quartering hammer | |
| CN209774557U (en) | electric nailing gun | |
| CN203808527U (en) | Pneumatic concrete vibrator | |
| CN107627263A (en) | Electric hammer | |
| CN207642351U (en) | A kind of handheld anti-explosion formula air driven hammer drill | |
| CN204051781U (en) | A kind of can be dust-proof hammer mill | |
| CN206199421U (en) | It is a kind of to turn atomizer for the reverse poor of chemical industry | |
| CN207004769U (en) | A kind of high-efficiency and energy-saving type air compressor machine | |
| CN2554328Y (en) | Airleg rock drill | |
| CN111136619A (en) | High-frequency striking type electric impact drill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 |