CN103273138B - A kind of PTO of Pneumatic saw - Google Patents
A kind of PTO of Pneumatic saw Download PDFInfo
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- CN103273138B CN103273138B CN201310229472.XA CN201310229472A CN103273138B CN 103273138 B CN103273138 B CN 103273138B CN 201310229472 A CN201310229472 A CN 201310229472A CN 103273138 B CN103273138 B CN 103273138B
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- valve core
- reversing valve
- saw
- valve pocket
- pto
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Abstract
A kind of PTO of Pneumatic saw, comprise body, the round bar being arranged on intrinsic reversing valve core, being sleeved on commutation valve pocket outside reversing valve core, being arranged on the round valve pocket inside reversing valve core and being fixedly connected with round valve pocket by fixed structure, this round bar is connected with saw blade by chuck assembly, the port of export of body is provided with the saw frame assembly of fixing saw blade, and this saw frame assembly is one-body molded; The side face of reversing valve core is provided with multiple tracks groove, and the commutation valve pocket medial surface opposed with described reversing valve core is smooth periphery.This PTO changes conventional transmission device and gas transmission groove is arranged on the processing mode commutated on valve pocket inner peripheral surface, and commutation valve pocket and the direct mould molding of reversing valve core, eliminate traditional Vehicle Processing operation, considerably increase working (machining) efficiency; The saw frame assembly of this Pneumatic saw is directly one-body molded by mould, overcomes traditional saw frame assembly yielding, the defect that manufacturing process is many.
Description
Technical field
The present invention relates to a kind of Pneumatic saw, especially a kind of PTO of Pneumatic saw.
Background technology
Pneumatic tool mainly utilizes compressed air to drive a kind of instrument of air motor and externally output kinetic energy work, can be divided into according to its fundamental mode: 1) rotary (eccentric movable vane type) .2) reciprocating (capacity piston type) general pneumatic tool is primarily of the main part such as power delivery section, operation form transform portion, intake and exhaust road part, running is opened and stop control unit divides, tool housing, and certain pneumatic tool running also must have energy resource supply part, air filtration and air pressure adjustment part and attachment etc.
The round valve pocket that existing air tool PTO mainly comprises commutation valve pocket, is arranged on the reversing valve core in commutation valve pocket and is arranged in reversing valve core, move reversing valve core by zone of pressure to move back and forth in commutation valve pocket, reversal valve cover drives round valve pocket to seesaw, to reach air tool effect.
Gas transmission groove between the commutation valve pocket of traditional, pneumatic instrument and reversing valve core is all arranged on the inner peripheral surface of commutation valve pocket, this gas transmission groove is formed by Vehicle Processing, after reversal valve mold is shaping, the operation of one Vehicle Processing groove need be increased, both reduced working (machining) efficiency and also consumed processing cost.
On market, the port of export of the saw frame of existing Pneumatic saw is provided with saw frame assembly, fixation is played to saw blade, but this saw frame assembly is by stamping parts and powder compacting part composition, powder compacting part is connected by hexagon socket head cap screw with stamping parts, stamping parts easily cause stamping parts be out of shape during punching press screwed hole, the frequency moved back and forth in long-time due to saw blade is high, in order to hexagon socket head cap screw screws its fastness connected of rear reinforcement, also need cling solid glue in the junction of hexagon socket head cap screw and powder compacting part, occur loosening to prevent the parts of saw frame assembly, the generation caused the accident.The complex structure of this saw frame assembly, easily deforms when forming the stamping parts punching of this saw frame assembly, and hexagon socket head cap screw connects also insecure, and the time that the manufacture of saw frame assembly expends is long, and cost is high.
Summary of the invention
The object of the invention is the defect existing for the PTO in order to solve Pneumatic saw in prior art, provide a kind of structure simple, manufacturing procedure is few, the PTO of the Pneumatic saw that process time is short.
To achieve these goals, the technical solution used in the present invention is:
A kind of PTO of Pneumatic saw, comprise body, the round bar being arranged on intrinsic reversing valve core, being sleeved on commutation valve pocket outside reversing valve core, being arranged on the round valve pocket inside described reversing valve core and being fixedly connected with described round valve pocket by fixed structure, this round bar is connected with saw blade by chuck assembly, as improvement of the present invention, the port of export of described body is provided with the saw frame assembly of fixing described saw blade, and this saw frame assembly is one-body molded; The side face of described reversing valve core is provided with multiple tracks groove, in this groove, be provided with mutually opposing through hole, and the described commutation valve pocket medial surface opposed with described reversing valve core is smooth periphery.
The PTO of above-mentioned a kind of Pneumatic saw, described saw frame assembly passes through mould molding.
The PTO of above-mentioned a kind of Pneumatic saw, described reversing valve core and commutation valve pocket all pass through mould molding.
The PTO of above-mentioned a kind of Pneumatic saw, described fixed structure is hexagon socket head cap screw.
The PTO of above-mentioned a kind of Pneumatic saw, the side of described reversing valve core is also provided with the axial protuberance extended vertically, and this axial protuberance is provided with mutually opposing breach.
The PTO of above-mentioned a kind of Pneumatic saw, leaves gap between the medial surface of described commutation valve pocket and the outer circumference surface of described reversing valve core.
Beneficial effect of the present invention is: gas transmission groove is arranged on the outer circumference surface of reversing valve core by this PTO, change conventional transmission device and gas transmission groove is arranged on the processing mode commutated on valve pocket inner peripheral surface, commutation valve pocket and the direct mould molding of reversing valve core, eliminate traditional Vehicle Processing operation, considerably increase working (machining) efficiency, reduce processing cost; The saw frame assembly of this Pneumatic saw is directly one-body molded by mould, and overcome traditional saw frame assembly yielding, screw connects insecure, the defect that manufacturing process is many.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
Fig. 2 is the structural representation of valve pocket of commutating in the present invention
Fig. 3 is the structural representation of reversing valve core in the present invention
Fig. 4 is the sectional view of valve pocket of commutating in the present invention
Detailed description of the invention
Coordinating detailed description for making to have further to understand and be familiar with to architectural feature of the present invention and effect of reaching in order to preferred embodiment and accompanying drawing, being described as follows:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of PTO of Pneumatic saw, comprise body 1, the round bar 6 being arranged on intrinsic reversing valve core 2, being sleeved on commutation valve pocket 3 outside reversing valve core 2, being arranged on the round valve pocket 4 inside reversing valve core 2 and being fixedly connected with round valve pocket 4 by fixed structure 5, this round bar 6 is connected with saw blade 8 by chuck assembly 7, as improvement of the present invention, the port of export of body 1 is provided with the saw frame assembly 9 of fixing saw blade 8, and this saw frame assembly 9 is one-body molded; The side face of reversing valve core 2 is provided with multiple tracks groove 21, in this groove 21, be provided with mutually opposing through hole 22, and commutation valve pocket 3 medial surface 33 opposed with reversing valve core 2 is smooth periphery.
In the present invention, saw frame assembly 9 is by mould molding, and reversing valve core 2 and commutation valve pocket 3 are all by mould molding, and fixed structure 5 is preferably hexagon socket head cap screw.
The side of reversing valve core 2 is also provided with the axial protuberance 23 extended vertically, and this axial protuberance 23 is provided with mutually opposing breach 24.
Gap is left between the medial surface of commutation valve pocket 3 and the outer circumference surface of reversing valve core 2.
As shown in Figure 4, the side face of commutation valve pocket 3 is equipped with through hole 31, the both ends of the surface of commutation valve pocket 3 are provided with forward direction air flue 32 and backward air flue.
At work, air-flow enters the air intake duct in commutation sleeve side wall, air intake duct communicates with the groove 21 on reversing valve core 2, air-flow enters forward direction air flue 32 from the through hole 31 commutation valve pocket 3, then flow out from front opening, reversing valve core 2 moves under the influence of air pressure backward, and round valve pocket 4 drives round bar 6 to travel forward under reaction force, cuts.
When air-flow enters backward air flue from the through hole 31 commutation valve pocket 3, then flow out from open rearward end, reversing valve core 2 travels forward under the influence of air pressure, and round valve pocket 4 drives round bar 6 to move backward under reaction force, cuts.
Gas transmission groove 21 is arranged on the outer circumference surface of reversing valve core 2 by this PTO, change traditional power output device and gas transmission groove 21 is arranged on the processing mode commutated on valve pocket 3 inner peripheral surface, commutation valve pocket 3 and reversing valve core 2 directly mould molding, eliminate traditional Vehicle Processing operation, considerably increase working (machining) efficiency, reduce processing cost; The saw frame assembly 9 of this Pneumatic saw is directly one-body molded by mould, and overcome traditional saw frame assembly yielding, screw connects insecure, the defect that manufacturing process is many.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in claimed scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. the PTO of a Pneumatic saw, comprise body, the round bar being arranged on intrinsic reversing valve core, being sleeved on commutation valve pocket outside reversing valve core, being arranged on the round valve pocket inside described reversing valve core and being fixedly connected with described round valve pocket by fixed structure, this round bar is connected with saw blade by chuck assembly, it is characterized in that, the port of export of described body is provided with the saw frame assembly of fixing described saw blade, and this saw frame assembly is one-body molded; The side face of described reversing valve core is provided with multiple tracks groove, mutually opposing through hole is provided with in this groove, the described commutation valve pocket medial surface opposed with described reversing valve core is smooth periphery, described saw frame assembly is by mould molding, and described reversing valve core and commutation valve pocket all pass through mould molding.
2. the PTO of a kind of Pneumatic saw according to claim 1, is characterized in that, described fixed structure is hexagon socket head cap screw.
3. the PTO of a kind of Pneumatic saw according to claim 1, is characterized in that, the side of described reversing valve core is also provided with the axial protuberance extended vertically, and this axial protuberance is provided with mutually opposing breach.
4. the PTO of a kind of Pneumatic saw according to claim 1, is characterized in that, leaves gap between the medial surface of described commutation valve pocket and the outer circumference surface of described reversing valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229472.XA CN103273138B (en) | 2013-06-08 | 2013-06-08 | A kind of PTO of Pneumatic saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310229472.XA CN103273138B (en) | 2013-06-08 | 2013-06-08 | A kind of PTO of Pneumatic saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103273138A CN103273138A (en) | 2013-09-04 |
| CN103273138B true CN103273138B (en) | 2016-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310229472.XA Active CN103273138B (en) | 2013-06-08 | 2013-06-08 | A kind of PTO of Pneumatic saw |
Country Status (1)
| Country | Link |
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| CN (1) | CN103273138B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5615746A (en) * | 1996-02-02 | 1997-04-01 | Chu; George | Reinforced pneumatic tool holder |
| US6006435A (en) * | 1998-05-22 | 1999-12-28 | Chien; Mei-Hsiu | Air-tight sealing arrangement of a handy pneumatic power saw |
| CN1263806A (en) * | 1999-02-01 | 2000-08-23 | S·P·空气株式会社 | Reciprocating pneumatic saw |
| CN201132243Y (en) * | 2007-12-18 | 2008-10-15 | 实耐宝工具仪器(昆山)有限公司 | Air-actuated saw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8844646B2 (en) * | 2011-11-18 | 2014-09-30 | Sing Hua Industrial Co., Ltd. | Integrated cylinder and reversing assembly of a reciprocating pneumatic tool |
-
2013
- 2013-06-08 CN CN201310229472.XA patent/CN103273138B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5615746A (en) * | 1996-02-02 | 1997-04-01 | Chu; George | Reinforced pneumatic tool holder |
| US6006435A (en) * | 1998-05-22 | 1999-12-28 | Chien; Mei-Hsiu | Air-tight sealing arrangement of a handy pneumatic power saw |
| CN1263806A (en) * | 1999-02-01 | 2000-08-23 | S·P·空气株式会社 | Reciprocating pneumatic saw |
| CN201132243Y (en) * | 2007-12-18 | 2008-10-15 | 实耐宝工具仪器(昆山)有限公司 | Air-actuated saw |
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| Publication number | Publication date |
|---|---|
| CN103273138A (en) | 2013-09-04 |
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