CN102513288B - Impact type pneumatic vibrator - Google Patents
Impact type pneumatic vibrator Download PDFInfo
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- CN102513288B CN102513288B CN201110437792.5A CN201110437792A CN102513288B CN 102513288 B CN102513288 B CN 102513288B CN 201110437792 A CN201110437792 A CN 201110437792A CN 102513288 B CN102513288 B CN 102513288B
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- plunger shaft
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- air flue
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Abstract
An impact type pneumatic vibrator relates to a pneumatic vibrator. At present, a bearing bore diameter of a pneumatic vibrator is connected with cylinders at two ends of an unbalanced rotor, the radial diameter of a rolling bearing is limited, the service life of the rolling bearing is shortened, and simultaneously, the bearing can bear great load in a running process. The impact type pneumatic vibrator is characterized in that a piston cavity is arranged vertically, a cylindrical piston is disposed in the piston cavity, an axial first air channel and a second air channel which is perpendicularly crossed with the first air channel are arranged in the piston, the upper end of the first air channel is provided with an opening, the lower end of the first air channel is communicated with the second air channel in a crossed manner, the lower portion of the piston cavity is an air outlet chamber communicated with a silencer, an air inlet joint is located above the air outlet chamber, when the piston moves vertically, the second air channel can be communicated with the air inlet joint and the air outlet chamber, and an annular air pushing surface is arranged on the periphery of the piston above the second air channel. In the scheme, the piston vertically moves in the piston cavity to realize vibration, anti-vibration ability and running stability are good, and vibration force is adjusted conveniently and flexibly.
Description
Technical field
The present invention relates to a kind of pneumatic vibrator.
Background technology
In current vibrating machine industry, according to vibrator institute power consumption form and operation principle, mainly contain electric vibrator (rotation, straight line, magnetic), the vibrator that surges, pneumatic vibrator (rotation, straight line).Electric vibrator is the one group of eccentric block that drives two shaft extension ends with motor, produces vibration force, and invariablenes turning speed is non-adjustable, and vibration force is adjusted inconvenient, for high frequency, high temperature and explosion-proof place, needs particular design.Surge exciter structure complexity, heaviness, installation and debugging are extremely inconvenient.Pneumatic vibrator of the same type mainly contains seat, covers, is with the formations such as unbalanced rotor, bearing, rolling bearing is pressed in bearing chamber, bearing bore diameter is connected with being with unbalanced two ends of rotor cylinder, limited the radial diameter of rolling bearing, reduced the physical life of rolling bearing, at running middle (center) bearing, can be subject to great dynamic load simultaneously.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that prior art scheme is improved and improved, and provides a kind of impact type pneumatic vibrator, to reach the good He stable object of vibration resistance.For this reason, the present invention takes following technical scheme.
A kind of impact type pneumatic vibrator, comprise inlet suction port and the silencer establishing the device seat in cylindrical piston chamber, be communicated with plunger shaft, it is characterized in that: described plunger shaft vertically arranges, in plunger shaft, be provided with the cylindrical piston that can move up and down, the second air flue that internal piston has the first axial air flue and intersects vertically with the first air flue, the first air flue upper end open, its lower end and the crossing connection of the second air flue; The bottom of plunger shaft is the discharge chamber being communicated with silencer, and inlet suction port is positioned at the top of discharge chamber, and at piston, moving up and down the second air flue in process can be connected with inlet suction port, discharge chamber; The piston periphery of the second air flue top is established annular gas pushing surface, and gas pushing surface to the distance of piston bottom is greater than inlet suction port air admission hole lower wall to the distance at the bottom of plunger shaft.In original state, piston relies on gravity to be positioned at the bottom of device seat, and the plunger shaft of piston top communicates with the external world by the first air flue and the second air flue, and air pressure equals an atmospheric pressure.When piston is subject to the powerful air pressure of air pump access, the stressed promotion piston stroking upward of annular gas pushing surface, the second air flue and discharge chamber are isolated, piston fast uplink, when piston rises to a certain degree, the second air flue is communicated with inlet suction port, and gases at high pressure enter by the second air flue and the first air flue in the plunger shaft of piston top, piston upper end pressurized, the plunger shaft that piston starts descending until piston top is connected with ambient atmosphere.With this, move back and forth the equipment that impacts and produce vibration force.This programme piston moves up and down and realizes vibration in plunger shaft, and vibration resistance and stable good, can change the speed of piston up-downgoing by the adjusting of air inlet pressure, change vibration force, easy to adjust, flexible.
As the further of technique scheme improved and supplemented, the present invention also comprises following additional technical feature.
Described piston comprises superposed enlarged diameter section and is positioned at the reduced diameter section of enlarged diameter section below, the enlarged diameter section of piston and reduced diameter section intersection form annular gas pushing surface, described plunger shaft comprises the chamber, large aperture matching with piston enlarged diameter section and is positioned at the chamber, small-bore that chamber, large aperture below and piston reduced diameter section match, and described device seat top is provided with the stifle in closed piston chamber.Piston can be inserted in plunger shaft from top to bottom.
The plunger shaft wall being connected with inlet suction port is offered the annular air inlet duct of indent, and air inlet duct connects macroporous cavity and chamber, small-bore.Annular air inlet duct makes the circumferential uniform stressed of piston.
Piston gas pushing surface to the distance of piston bottom is greater than at the bottom of air inlet duct to the distance at the bottom of plunger shaft.
The aperture of described discharge chamber is greater than chamber, small-bore, and discharge chamber pushes up to the distance at the bottom of plunger shaft and is greater than the distance of the second air flue lower wall to piston bottom.
Described silencer, inlet suction port is divided into the both sides of device seat, and the air admission hole of silencer and the venthole of inlet suction port are perpendicular to plunger shaft.
Beneficial effect: piston moves up and down and realizes vibration in plunger shaft, and vibration resistance and stable good, can change the speed of piston up-downgoing by the adjusting of air inlet pressure, change vibration force, easy to adjust, flexible.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional structure schematic diagram that piston of the present invention is positioned at down stroke.
Fig. 3 is the sectional structure schematic diagram that piston of the present invention is positioned at up stroke.
In figure: 1-device seat; 2-inlet suction port, 3-silencer, 4-piston, 5-the first air flue, 6-the second air flue, 7-discharge chamber, 8-gas pushing surface, 9-stifle, 10-annular air inlet duct.
The specific embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, 2, 3, the present invention includes inlet suction port 2 and the silencer 3 of establishing the device seat 1 in cylindrical piston chamber, be communicated with plunger shaft, described plunger shaft vertically arranges, in plunger shaft, be provided with the cylindrical piston 4 that can move up and down, the second air flue 6 that piston 4 inside have the first axial air flue 5 and intersect vertically with the first air flue 5, the first air flue 5 upper end open, its lower end and the crossing connection of the second air flue 6; The bottom of plunger shaft is the discharge chamber 7 being communicated with silencer 3, and inlet suction port 2 is positioned at the top of discharge chamber 7, and in piston 4 moves up and down process, the second air flue 6 can be connected with inlet suction port 2, discharge chamber 7; Piston 4 peripheries are set in the annular gas pushing surface 8 of the second air flue 6 tops.Piston 4 comprises superposed enlarged diameter section and is positioned at the reduced diameter section of enlarged diameter section below, the enlarged diameter section of piston 4 and reduced diameter section intersection form annular gas pushing surface 8, described plunger shaft comprises the chamber, large aperture matching with piston 4 enlarged diameter sections and is positioned at the chamber, small-bore that chamber, large aperture below and piston 4 reduced diameter sections match, and described device seat 1 top is provided with the stifle 9 in closed piston chamber.Piston 4 can be inserted in plunger shaft from top to bottom.The plunger shaft wall being connected with inlet suction port 2 is offered the annular air inlet duct 10 of indent, and air inlet duct connects macroporous cavity and chamber, small-bore.Piston 4 gas pushing surfaces 8 to the distance at 4 ends of piston is greater than at the bottom of air inlet duct to the distance at the bottom of plunger shaft.The aperture of described discharge chamber 7 is greater than chamber, small-bore, and discharge chamber 7 pushes up to the distance at the bottom of plunger shaft and is greater than the second air flue 6 lower wall to the piston distance at 4 ends.Silencer 3, inlet suction port 2 are divided into the both sides of device seat 1, and the venthole of the air admission hole of silencer 3 and inlet suction port 2 is perpendicular to plunger shaft.
As shown in Figure 2, in original state, piston 4 relies on gravity to be positioned at the bottom of device seat 1, and the plunger shaft of piston 4 tops communicates with the external world by the first air flue 5 and the second air flue 6, and air pressure equals an atmospheric pressure.When piston 4 is subject to the powerful air pressure of air pump access, the stressed promotion piston 4 of annular gas pushing surface 8 is up, and the second air flue 6 is isolated with discharge chamber 7, piston 4 fast uplinks; As shown in Figure 3, when piston 4 rises to a certain degree, the second air flue 6 is communicated with inlet suction port 2, and gases at high pressure enter in the plunger shaft of piston 4 tops by the second air flue 6 and the first air flue 5, piston 4 upper end pressurizeds, piston 4 starts the descending until plunger shaft of piston 4 tops and is connected with ambient atmosphere.With this, move back and forth the equipment that impacts and produce vibration force.
Claims (6)
1. an impact type pneumatic vibrator, comprise and establish the device seat (1) in cylindrical piston chamber, the inlet suction port (2) being communicated with plunger shaft and silencer (3), it is characterized in that: described plunger shaft vertically arranges, in plunger shaft, be provided with the cylindrical piston (4) that can move up and down, the second air flue (6) that piston (4) inside has axial the first air flue (5) and intersects vertically with the first air flue (5), the first air flue (5) upper end open, the connection crossing with the second air flue (6) of its lower end; The bottom of plunger shaft is the discharge chamber (7) being communicated with silencer (3), and inlet suction port (2) is positioned at the top of discharge chamber (7), and in piston (4) moves up and down process, the second air flue (6) can be connected with inlet suction port (2), discharge chamber (7); Piston (4) periphery of the second air flue (6) top is established annular gas pushing surface (8), and gas pushing surface (8) to the distance at piston (4) end is greater than inlet suction port (2) air admission hole lower wall to the distance at the bottom of plunger shaft.
2. a kind of impact type pneumatic vibrator according to claim 1, it is characterized in that: described piston (4) comprises superposed enlarged diameter section and is positioned at the reduced diameter section of enlarged diameter section below, the enlarged diameter section of piston (4) and reduced diameter section intersection form annular gas pushing surface (8), described plunger shaft comprises the chamber, large aperture matching with piston (4) enlarged diameter section and is positioned at the chamber, small-bore that chamber, large aperture below and piston (4) reduced diameter section match, and described device seat (1) top is provided with the stifle (9) in closed piston chamber.
3. a kind of impact type pneumatic vibrator according to claim 2, is characterized in that: the plunger shaft wall being connected with inlet suction port (2) is offered the annular air inlet duct (10) of indent, and air inlet duct connects chamber, large aperture and chamber, small-bore.
4. a kind of impact type pneumatic vibrator according to claim 3, is characterized in that: piston (4) gas pushing surface (8) to the distance at piston (4) end is greater than at the bottom of air inlet duct to the distance at the bottom of plunger shaft.
5. a kind of impact type pneumatic vibrator according to claim 4, it is characterized in that: the aperture of described discharge chamber (7) is greater than chamber, small-bore, discharge chamber (7) pushes up to the distance at the bottom of plunger shaft and is greater than the second air flue (6) lower wall to the piston distance at (4) end.
6. a kind of impact type pneumatic vibrator according to claim 5, it is characterized in that: described silencer (3), the both sides that inlet suction port (2) is divided into device seat (1), the venthole of the air admission hole of silencer (3) and inlet suction port (2) is perpendicular to plunger shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110437792.5A CN102513288B (en) | 2011-12-23 | 2011-12-23 | Impact type pneumatic vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110437792.5A CN102513288B (en) | 2011-12-23 | 2011-12-23 | Impact type pneumatic vibrator |
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| Publication Number | Publication Date |
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| CN102513288A CN102513288A (en) | 2012-06-27 |
| CN102513288B true CN102513288B (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110437792.5A Active CN102513288B (en) | 2011-12-23 | 2011-12-23 | Impact type pneumatic vibrator |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286058A (en) * | 2013-05-24 | 2013-09-11 | 山东科技大学 | Piston type pneumatic powerful vibrator |
| CN106914742A (en) * | 2015-12-28 | 2017-07-04 | 柳道万和(苏州)热流道系统有限公司 | Beche |
| CN108994263B (en) * | 2018-08-27 | 2021-09-03 | 厦门汉莱德机械有限公司 | Pneumatic vibrator and core shooting machine |
| CN114345677B (en) * | 2021-10-29 | 2023-03-24 | 中国航发西安动力控制科技有限公司 | Valve sleeve type pneumatic vibrator |
| CN115429463A (en) * | 2022-09-01 | 2022-12-06 | 深圳市速航科技发展有限公司 | Rotatable vibrating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510180Y (en) * | 2001-12-31 | 2002-09-11 | 赵克猛 | Pneumatic vibration exciter |
| CN201192680Y (en) * | 2008-03-26 | 2009-02-11 | 卧龙电气集团股份有限公司 | Turbo type air vibrator with unbalance rotor |
| CN201702097U (en) * | 2010-06-03 | 2011-01-12 | 中国人民解放军国防科学技术大学 | Pneumatic vibration generator |
| CN202366862U (en) * | 2011-12-23 | 2012-08-08 | 卧龙电气集团股份有限公司 | Impacted pneumatic vibrator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5112272B2 (en) * | 2008-12-12 | 2013-01-09 | 日本ニューマチック工業株式会社 | Air hammer device |
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2011
- 2011-12-23 CN CN201110437792.5A patent/CN102513288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510180Y (en) * | 2001-12-31 | 2002-09-11 | 赵克猛 | Pneumatic vibration exciter |
| CN201192680Y (en) * | 2008-03-26 | 2009-02-11 | 卧龙电气集团股份有限公司 | Turbo type air vibrator with unbalance rotor |
| CN201702097U (en) * | 2010-06-03 | 2011-01-12 | 中国人民解放军国防科学技术大学 | Pneumatic vibration generator |
| CN202366862U (en) * | 2011-12-23 | 2012-08-08 | 卧龙电气集团股份有限公司 | Impacted pneumatic vibrator |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-137182A 2010.06.24 |
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| CN102513288A (en) | 2012-06-27 |
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