CN1776237A - Piston type pneumatic motor - Google Patents
Piston type pneumatic motor Download PDFInfo
- Publication number
- CN1776237A CN1776237A CN 200510061701 CN200510061701A CN1776237A CN 1776237 A CN1776237 A CN 1776237A CN 200510061701 CN200510061701 CN 200510061701 CN 200510061701 A CN200510061701 A CN 200510061701A CN 1776237 A CN1776237 A CN 1776237A
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- Prior art keywords
- piston
- hole
- plug
- disappointing
- cylinder
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- 238000007789 sealing Methods 0.000 claims description 29
- 230000000994 depressogenic effect Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
This invention relates to a piston type pneumatic motor, which contains cylinder jacket cylinder cover on front end of cylinder jacket, cylinder base, air inlet hole on cylinder caver, exhaust hole on cylinder base, piston in cavity of cylinder, plunger connecter with piston, said piston having sliding gas releasing plug with seal piece in head, piston having through hole which forms air path way with side wall of releasing plug. Said invention realizes piston reciprocating motion by air releasing plug with simple structure and convenient installation.
Description
(1) technical field
The present invention relates to a kind of piston type pneumatic motor.
(2) background technique
The application of piston type pneumatic motor is found everywhere, for example: jack, lifting finishing platform, pneumatic ship etc.Modal piston type pneumatic motor has two kinds on market at present.A kind of is to comprise that cylinder body reaches reciprocating main driven plunger in this cylinder body, and main driven plunger is provided with center hole, is fixed with an a set of cups in this center hole; One nested piston can slide in a set of cups, nested piston outer wall and a set of cups inner wall sealing; Slide on the nested piston and fix a unsteady gas sealing plate, the gas sealing plate that floats slides on this nested piston along its center hole; Unsteady gas sealing plate is positioned at main driven plunger upper surface; Offer two holes on the main driven plunger, wherein first through hole is communicated with upper chamber with atmosphere, and second through hole is communicated with lower chambers; The motion of gas sealing plate of floating can be controlled the switching of this first through hole, and the motion of nested piston can be controlled the switching of this second through hole, and the pressure difference of the upper and lower chamber of motion control by float gas sealing plate and nested piston makes main driven plunger to-and-fro motion.The structure of this kind piston type pneumatic motor is very complicated.
Another kind of piston type pneumatic motor is at the cylinder inner wall select location, directly dash and establish two guide grooves in one-body molded mode, and cooperate a pneumatic piston group, the built-in shuttle valve of piston set, making piston set allow during by guide groove gas enter the moving pressing chamber of shuttle with set close compression ring drags shuttle valve and opens a passage, gas discharges through this passage, and continuous action and so forth makes the piston set to-and-fro motion.The piston type pneumatic motor of this structure is very complicated in assembling, and especially the installation of piston set, shuttle valve, guide groove cooperates requirement accurate more.In addition, establish two guide grooves in the cylinder wall upper punch, it is more complex to add man-hour than common cylinder.
(3) summary of the invention
In order to overcome piston type pneumatic motor complex structure in the prior art, complicated deficiency to be installed, the invention provides a kind of piston type pneumatic motor simple in structure, easy for installation.
The technological scheme that the present invention solves its technical problem is: a kind of piston type pneumatic motor, comprise cylinder sleeve, the front end of described cylinder sleeve is equipped with cylinder head, the end of described cylinder sleeve is equipped with cylinder seat, offer inlet hole on the described cylinder head, offer exhaust port on the described cylinder seat, be provided with piston in the inner chamber of described cylinder sleeve, described piston is divided into air-inlet cavity and disappointing chamber with the inner chamber of described cylinder sleeve, described piston connects plunger, described piston is connected with described cylinder seat by spring, offer axial through hole on the described piston, be with the plug that slidably loses heart in this through hole, the length of described disappointing plug is greater than the length of described piston, and the head of described disappointing plug has Sealing, forms gas distribution channel between the sidewall of the described through-hole wall and the plug that loses heart, described gas distribution channel and described air-inlet cavity are by the Sealing sealing of described disappointing plug head, and described gas distribution channel is communicated with described disappointing chamber.
Further, expand its front portion of described through hole, and the diameter at described through hole rear portion and the diameter of described disappointing plug are suitable, and it expands described through hole and form gas distribution channel between the sidewall of the inwall of portion and the plug that loses heart.
Further, the portion of expanding of described through hole is stepped, and the head of described disappointing plug is a sealing block, and described sealing block and the described stepped afterbody ladder that expands portion are sealed and matched by seal ring.
Further, there is depressed part the side of described piston, and the wall of this depressed part and described cylinder sleeve inner chamber has surrounded skirt clearance, and described skirt clearance is communicated with described disappointing chamber and gas distribution channel respectively by attachment hole.
Further, between the wall of described through hole and the sidewall of described disappointing plug seal ring is arranged, described seal ring is positioned at the rear of the portion of expanding of described through hole.
Further, described depressed part is the scrobicular ring around described piston.
Further, be evenly distributed with several disappointing stoppers on the described piston, each through hole of filling in separately that loses heart cooperates.
The present invention sealed between gas distribution channel and the air-inlet cavity in original state following time.After air-inlet cavity feeds pressurized gas by inlet hole, high pressure air promotes piston and moves to the cylinder seat direction, when piston moved to a certain degree, the rear portion of the plug that loses heart began to withstand cylinder block, and the plug that loses heart is backed down by cylinder seat, the Sealing of the plug head of losing heart no longer seals gas distribution channel and air-inlet cavity, high pressure air enters disappointing chamber by gas distribution channel, and is discharged in the atmosphere by the exhaust port on the cylinder block, and the pressure in the air-inlet cavity disappears, spring reset drives piston and makes return movement.When cylinder head was arrived in piston motion, two plugs that lose heart were depressed by cylinder head, again with gas distribution channel and air-inlet cavity sealing, began next and did the work circulation.
Beneficial effect of the present invention is: 1. realize the to-and-fro motion of piston by the plug structure that loses heart, and simple in structure.2. simple installation, the through hole that the plug that only needs to lose heart inserts on the piston gets final product.
(4) description of drawings
Fig. 1 is the sectional views of embodiment's two described piston type pneumatic motors under original state.
Fig. 2 is embodiment's two described piston type pneumatic motors another sectional views under original state.
Fig. 3 is the sectional views of embodiment's two described piston type pneumatic motors under air deflating state.
Fig. 4 is embodiment's two described piston type pneumatic motors another sectional views under air deflating state.
(5) embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Embodiment one
A kind of piston type pneumatic motor, comprise cylinder sleeve, the front end of described cylinder sleeve is equipped with cylinder head, the end of described cylinder sleeve is equipped with cylinder seat, offer inlet hole on the described cylinder head, offer exhaust port on the described cylinder seat, be provided with piston in the inner chamber of described cylinder sleeve, described piston is divided into air-inlet cavity and disappointing chamber with the inner chamber of described cylinder sleeve, and described piston connects plunger, and described piston is connected with described cylinder seat by spring, offer axial through hole on the described piston, be with the plug that slidably loses heart in this through hole, promptly should lose heart plug with respect to described piston slidably, the length of described disappointing plug is greater than the length of described piston.Expand its front portion of described through hole, the diameter at its rear portion of described through hole and the diameter of described disappointing plug are suitable, the head of described disappointing plug has sealing block, described through hole expands and forms gas distribution channel between the sidewall of the inwall of portion and the plug that loses heart, described gas distribution channel and described air-inlet cavity are by the sealing block sealing of described disappointing plug head, and described gas distribution channel is communicated with by vent with described disappointing chamber.Be evenly distributed with two disappointing stoppers on described piston, each through hole of filling in separately that loses heart cooperates, and makes motor operation steady.
The present invention sealed between gas distribution channel and the air-inlet cavity in original state following time.After air-inlet cavity feeds pressurized gas by inlet hole, high pressure air promotes piston and moves to the cylinder seat direction, when piston moved to a certain degree, the rear portion of the plug that loses heart began to withstand cylinder block, and the plug that loses heart is backed down by cylinder seat, the Sealing of the plug head of losing heart no longer seals gas distribution channel and air-inlet cavity, high pressure air enters disappointing chamber by gas distribution channel, and is discharged in the atmosphere by the exhaust port on the cylinder block, and the pressure in the air-inlet cavity disappears, spring reset drives piston and makes return movement.When cylinder head was arrived in piston motion, two plugs that lose heart were depressed by cylinder head, again with gas distribution channel and air-inlet cavity sealing, began next and did the work circulation.
Embodiment two
With reference to Fig. 1,2,3, a kind of piston type pneumatic motor, comprise cylinder sleeve 1, the front end of described cylinder sleeve 1 is equipped with cylinder head 2, and the end of described cylinder sleeve 1 is equipped with cylinder seat 3, offers inlet hole 4 on the described cylinder head 2, offer exhaust port on the described cylinder seat 3, be provided with piston 5 in the inner chamber of described cylinder sleeve 1, described piston 5 is divided into air-inlet cavity 6 and disappointing chamber 7 with the inner chamber of described cylinder sleeve 1, and described piston 5 connects plunger 8.Described piston 5 is connected with described cylinder seat 3 by spring 9, offer axial through hole on the described piston 5, be with the plug 10 that slidably loses heart in this through hole, promptly should lose heart plug 10 with respect to described piston 5 slidably, the length of described disappointing plug 10 is greater than the length of described piston 5.Its front portion of described through hole is expanded and is stepped, and the diameter at its rear portion of described through hole and the diameter of described disappointing plug 10 are suitable, and described through hole expands and forms gas distribution channel 11 between the sidewall of the inwall of portion and the plug 10 that loses heart.Seal ring 12 is arranged between the sidewall of the wall of described through hole and described disappointing plug 10, and described seal ring 12 is positioned at the rear of the portion of expanding of described through hole, and seal ring 12 can prevent moving freely of disappointing plug 10.
The head of described disappointing plug 10 has sealing block 13, and described sealing block and the described stepped afterbody ladder that expands portion are sealed and matched by seal ring 14, thereby realizes the sealing between gas distribution channel 11 and the air-inlet cavity 6.
There is the scrobicular ring around described piston the side of described piston 5, the wall of this scrobicular ring and described cylinder sleeve inner chamber has surrounded skirt clearance 15, described skirt clearance 15 is communicated with described disappointing chamber and gas distribution channel respectively by attachment hole 16,17, thus being communicated with between realization gas distribution channel 11 and the disappointing chamber 7.
Be evenly distributed with two disappointing stoppers on described piston, each through hole of filling in separately that loses heart cooperates, and makes motor operation steady.
The present invention is in original state following time, sealing between gas distribution channel 11 and the air-inlet cavity 6.After air-inlet cavity 6 feeds pressurized gas by inlet hole 4, high pressure air promotes piston 5 and moves to cylinder seat 3 directions, when piston 5 moves to a certain degree, the rear portion of disappointing plug 10 begins to withstand cylinder block 3, the plug 10 of losing heart is backed down by cylinder seat 3, the Sealing of the plug head of losing heart no longer seals gas distribution channel 11 and air-inlet cavity 6, high pressure air enters the chamber 7 of losing heart by gas distribution channel, and be discharged in the atmosphere by the exhaust port on the cylinder block, pressure in the air-inlet cavity 6 disappears, spring 9 resets, and drives piston 5 and makes return movement.When piston 5 moved to cylinder head, two plugs that lose heart were depressed by cylinder head 2, with gas distribution channel 11 and air-inlet cavity 6 sealings, began next and did the work circulation again.
Claims (7)
1. piston type pneumatic motor, comprise cylinder sleeve, the front end of described cylinder sleeve is equipped with cylinder head, the end of described cylinder sleeve is equipped with cylinder seat, offers inlet hole on the described cylinder head, offers exhaust port on the described cylinder seat, be provided with piston in the inner chamber of described cylinder sleeve, described piston is divided into air-inlet cavity and disappointing chamber with the inner chamber of described cylinder sleeve, and described piston connects plunger, it is characterized in that:
Described piston is connected with described cylinder seat by spring, offer axial through hole on the described piston, be with the plug that slidably loses heart in this through hole, the length of described disappointing plug is greater than the length of described piston, the head of described disappointing plug has Sealing, form gas distribution channel between the sidewall of the described through-hole wall and the plug that loses heart, described gas distribution channel and described air-inlet cavity are by the Sealing sealing of described disappointing plug head, and described gas distribution channel is communicated with described disappointing chamber.
2. piston type pneumatic motor as claimed in claim 1, it is characterized in that: expand its front portion of described through hole, the diameter at its rear portion of described through hole and the diameter of described disappointing plug are suitable, and described through hole expands and forms gas distribution channel between the sidewall of the inwall of portion and the plug that loses heart.
3. piston type pneumatic motor as claimed in claim 1, it is characterized in that: the portion of expanding of described through hole is stepped, the head of described disappointing plug is a sealing block, and described sealing block cooperates by seal ring seal with the described stepped afterbody ladder that expands portion.
4. piston type pneumatic motor as claimed in claim 3, it is characterized in that: there is depressed part the side of described piston, the wall of this depressed part and described cylinder sleeve inner chamber has surrounded skirt clearance, and described skirt clearance is communicated with described disappointing chamber and gas distribution channel respectively by attachment hole.
5. piston type pneumatic motor as claimed in claim 4 is characterized in that: between the wall of described through hole and the sidewall of described disappointing plug seal ring is arranged, described seal ring is positioned at the rear of the portion of expanding of described through hole.
6. piston type pneumatic motor as claimed in claim 5 is characterized in that: described depressed part is the scrobicular ring around described piston.
7. piston type pneumatic motor as claimed in claim 6 is characterized in that: be evenly distributed with several disappointing stoppers on the described piston, each through hole of filling in separately that loses heart cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100617017A CN100381709C (en) | 2005-11-25 | 2005-11-25 | Piston type pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100617017A CN100381709C (en) | 2005-11-25 | 2005-11-25 | Piston type pneumatic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1776237A true CN1776237A (en) | 2006-05-24 |
| CN100381709C CN100381709C (en) | 2008-04-16 |
Family
ID=36765906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100617017A Expired - Fee Related CN100381709C (en) | 2005-11-25 | 2005-11-25 | Piston type pneumatic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100381709C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659054A (en) * | 2012-05-25 | 2012-09-12 | 衡阳市锦泰工具有限公司 | Coupler-hard-sealed pneumatic booster for hydraulic jack |
| CN103935141A (en) * | 2014-04-11 | 2014-07-23 | 合肥鑫晟光电科技有限公司 | Driving structure used for driving printing head to move and printing device |
| CN104044443A (en) * | 2014-07-16 | 2014-09-17 | 吴哲皓 | Environment-friendly new energy automobile power device |
| CN107100913A (en) * | 2017-05-25 | 2017-08-29 | 奉化市鑫潮自动化元件有限公司 | A kind of pulse pressure regulation cylinder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475855A (en) * | 1976-04-22 | 1977-06-10 | Permac Ind Ltd | Metering pump |
| DE3206613A1 (en) * | 1982-02-24 | 1983-09-01 | Bakonyi Bauxitbánya Vállalat, 8301 Tapolca | Pressure-increasing piston pump |
| CN2057227U (en) * | 1989-11-14 | 1990-05-16 | 黄永德 | Vertical reciprocating piston pump |
| CN2166113Y (en) * | 1993-05-04 | 1994-05-25 | 洪茂雄 | Reciprocating pneumatic motor for oil pressure |
| DE19547187C2 (en) * | 1995-12-16 | 2000-02-03 | Schmidt & Co Gmbh Kranz | Pneumatically actuated reciprocating machine |
| CN2649803Y (en) * | 2003-07-11 | 2004-10-20 | 林�建 | Pneumatic pump |
| CN2844533Y (en) * | 2005-11-25 | 2006-12-06 | 浙江工业大学 | Piston-style pneumatic motor |
-
2005
- 2005-11-25 CN CNB2005100617017A patent/CN100381709C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659054A (en) * | 2012-05-25 | 2012-09-12 | 衡阳市锦泰工具有限公司 | Coupler-hard-sealed pneumatic booster for hydraulic jack |
| CN103935141A (en) * | 2014-04-11 | 2014-07-23 | 合肥鑫晟光电科技有限公司 | Driving structure used for driving printing head to move and printing device |
| CN104044443A (en) * | 2014-07-16 | 2014-09-17 | 吴哲皓 | Environment-friendly new energy automobile power device |
| CN107100913A (en) * | 2017-05-25 | 2017-08-29 | 奉化市鑫潮自动化元件有限公司 | A kind of pulse pressure regulation cylinder |
| CN107100913B (en) * | 2017-05-25 | 2019-02-01 | 宁波市鑫潮自动化元件有限公司 | A kind of pulse pressure regulation cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100381709C (en) | 2008-04-16 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 Termination date: 20101125 |