TWI729809B - Vibration damping structure of pneumatic hammer - Google Patents
Vibration damping structure of pneumatic hammer Download PDFInfo
- Publication number
- TWI729809B TWI729809B TW109116006A TW109116006A TWI729809B TW I729809 B TWI729809 B TW I729809B TW 109116006 A TW109116006 A TW 109116006A TW 109116006 A TW109116006 A TW 109116006A TW I729809 B TWI729809 B TW I729809B
- Authority
- TW
- Taiwan
- Prior art keywords
- air
- passage
- chamber
- air inlet
- vibration damping
- Prior art date
Links
Images
Landscapes
- Percussive Tools And Related Accessories (AREA)
Abstract
一種氣動鎚之減振構造,包括有一具凹室之握柄,此凹室具有一底壁;握柄設有一連接至凹室之進氣通道,此進氣通道中設有一控制氣流通過的控制閥。凹室固定有一外管,而一內管可活動地容置於外管中,且以一筒蓋伸於凹室中。內管中設有一可動的鎚體及一控制鎚體作動的進氣閥,且內管設有一使進氣通道連通至進氣閥之穿孔。筒蓋具有一端壁,其與底壁之間形成有一氣室,筒蓋設有一密接凹室之氣密封件。進氣通道與氣室以一連接通道連通,使高壓空氣能進入氣室。 A vibration damping structure of a pneumatic hammer, comprising a handle with a recessed chamber, the recessed chamber has a bottom wall; the handle is provided with an air inlet passage connected to the recessed chamber, and a control for controlling the passage of air flow is provided in the air inlet passage valve. An outer tube is fixed in the cavity, and an inner tube is movably contained in the outer tube, and a cylinder cover extends into the cavity. The inner pipe is provided with a movable hammer and an intake valve for controlling the action of the hammer, and the inner pipe is provided with a perforation connecting the intake passage to the intake valve. The cylinder cover has one end wall, and an air chamber is formed between the cylinder cover and the bottom wall, and the cylinder cover is provided with an air seal that is tightly connected to the recessed chamber. The air inlet channel and the air chamber are connected by a connecting channel, so that high-pressure air can enter the air chamber.
Description
本發明與氣動鎚有關,尤指一種氣動鎚之減振構造。 The present invention relates to a pneumatic hammer, and particularly refers to a vibration damping structure of a pneumatic hammer.
第4圖所示者為習知的槍形氣動鎚,其具有一槍柄部81及一槍管部82,槍柄部81中設有進氣通道83,而槍管部82中設有一進氣閥84及一可動的鎚體85,該鎚體85可被高壓氣體驅動而在槍管部82中往復移動以供執行作業之用。
Figure 4 shows a conventional gun-shaped pneumatic hammer, which has a
氣動鎚在使用的過程中會因該鎚體85的往復位移而形成振動,長時間使用下對使用者握持的手掌有不良的影響,尤其擊打力道愈強大的氣動鎚,其所造成的振動也愈大,對使用者造成的傷害也愈大,故必須加以改良。上述習知的氣動鎚結構中,在該槍管部82之後端設有一空間86,並於其中設置一具彈性的橡膠軟塊87及一彈簧88,當該鎚體85向後移動而使槍管部82產生振動時,可藉由橡膠軟塊87及彈簧88頂住,藉此達到減振之效果。
The pneumatic hammer will vibrate due to the return movement of the
惟該鎚體85的作動頻率高達每分鐘數千次之譜,即該橡膠軟塊87每分鐘必須承受數千次壓縮/伸張的變形,由於材料性質的先天限制以致其回復原狀的動作速度不夠快,即橡膠軟塊87不能在每次被壓縮後而在下一次被壓縮前立即伸張回復原狀,則限縮減振的效果。此外,該鎚體85的高頻
作動亦將迅速造成該橡膠軟塊87的彈性疲乏而失去彈性,導致無法再繼續產生減振效果。
However, the operating frequency of the
又第5圖所示者為另一種習知的氣動鎚,其與前述槍形氣動鎚之結構具有不同的形狀,藉由其柄部91的直筒形狀,可在某些特定的使用場合提供較方便順手的操作。
Also shown in Figure 5 is another conventional pneumatic hammer, which has a different shape from the structure of the aforementioned gun-shaped pneumatic hammer. With the straight shape of the
然而此習知的氣動鎚正因其形狀之故,進氣通道93位於柄部91及管部92之正後方,以致沒有空間可用於鎚體94往復移動的緩衝作用,因而在使用時會產生振動。
However, due to the shape of the conventional pneumatic hammer, the
本發明之主要目的在於提供一種氣動鎚之減振構造,其在槍體中以高壓空氣注滿一氣室,以供鎚體在作動中的緩衝減振之用,具有不會因發生彈性疲乏而失去減振效果之功效。 The main purpose of the present invention is to provide a vibration damping structure for a pneumatic hammer, which fills an air chamber with high-pressure air in the gun body for buffering and damping vibration of the hammer body during operation. Lose the effect of damping effect.
為達前述之目的,本發明提供一種氣動鎚之減振構造,其包括有:一握柄,其具有一凹室,該凹室具有一開口端及一底壁;該握柄設有一連接至該凹室之進氣通道,其中該進氣通道中設有一控制氣流通過的控制閥;一外管,其固定於該凹室之開口端;一內管,其可活動地容置於該外管中,包括有相連接之一槍管及一伸於該凹室中之筒蓋,其中該槍管中設有一可動的鎚體,該筒蓋中設有一控制該鎚體作動的進氣閥,且該筒蓋設有一使該進氣通道連通至該進氣閥之穿孔;該筒蓋具有一端壁,其與該底壁之間形成有一氣室,其中該筒蓋設有一密接該凹室之 第一氣密封件;一連接通道,其連通該進氣通道與該氣室,使高壓空氣能進入該氣室。 In order to achieve the foregoing objective, the present invention provides a vibration damping structure for a pneumatic hammer, which includes: a handle with a cavity, the cavity has an open end and a bottom wall; the handle is provided with a connection to The air inlet passage of the recessed chamber, wherein the air inlet passage is provided with a control valve for controlling the passage of airflow; an outer tube fixed to the open end of the recessed chamber; and an inner tube movably accommodated in the outer tube The tube includes a barrel connected to it and a barrel cover extending in the recess, wherein a movable hammer is provided in the barrel, and an air inlet valve controlling the action of the hammer is provided in the barrel cover, And the cylinder cover is provided with a perforation that allows the air inlet passage to communicate with the intake valve; the cylinder cover has an end wall, and an air chamber is formed between the cylinder cover and the bottom wall, wherein the cylinder cover is provided with an air chamber that is tightly connected to the recessed chamber The first air seal; a connecting channel, which connects the air inlet channel and the air chamber, so that high-pressure air can enter the air chamber.
於一實施例中,定義該凹室沿一軸向延伸,該軸向與該進氣通道的延伸方向之間形成一夾角。 In one embodiment, the recess is defined to extend along an axial direction, and an included angle is formed between the axial direction and the extending direction of the air inlet passage.
較佳地,該連接通道設於該握柄中,且位於該進氣通道之一側;該進氣通道於該連接通道之一相對側設有一與該連接通道同向延伸之施工孔,且該施工孔以一第二氣密封件封閉。 Preferably, the connecting channel is provided in the handle and located on one side of the air inlet channel; the air inlet channel is provided with a construction hole extending in the same direction as the connecting channel on an opposite side of the air inlet channel, and The construction hole is closed with a second air seal.
於另一實施例中,定義該凹室沿一軸向延伸,該軸向與該進氣通道的延伸方向平行。 In another embodiment, the recess is defined to extend along an axial direction, and the axial direction is parallel to the extending direction of the intake passage.
較佳地,該連接通道連接該進氣通道之接口位於該控制閥之上游處。 Preferably, the interface connecting the connecting passage to the intake passage is located upstream of the control valve.
較佳地,該氣室中設有一頂推該端壁之彈簧。 Preferably, a spring for pushing the end wall is provided in the air chamber.
而本發明之上述目的與優點,不難從下述所選用實施例之詳細說明與附圖中獲得深入了解。 It is not difficult to obtain an in-depth understanding of the above-mentioned objects and advantages of the present invention from the detailed description of the selected embodiments and the accompanying drawings.
1:握柄 1: grip
11:凹室 11: Alcove
111:開口端 111: open end
12:底壁 12: bottom wall
13:進氣通道 13: intake channel
14:控制閥 14: Control valve
15:按鈕 15: Button
16:施工孔 16: Construction hole
17:第二氣密封件 17: The second air seal
2:外管 2: Outer tube
3:內管 3: inner tube
31:槍管 31: Barrel
32:筒蓋 32: Cylinder cover
321:穿孔 321: Piercing
322:端壁 322: End Wall
323:第一氣密封件 323: The first air seal
324:耐磨支撐環件 324: Wear-resistant support ring
33:鎚體 33: Hammer
34:進氣閥 34: intake valve
4:連接通道 4: connection channel
41:接口 41: Interface
5:氣室 5: Air chamber
6:彈簧 6: Spring
71:握柄 71: Grip
72:凹室 72: Alcove
721:底壁 721: bottom wall
722:筒件 722: Tube
723:第一環牆 723: First Ring Wall
724:第三氣密封件 724: third air seal
73:進氣通道 73: intake channel
731:控制閥 731: Control Valve
74:筒蓋 74: Cylinder cover
741:端壁 741: End Wall
742:穿孔 742: perforation
743:進氣閥 743: intake valve
744:第二環牆 744: Second Ring Wall
75:氣室 75: air chamber
751:彈簧 751: Spring
76:連接通道 76: connection channel
761:接口 761: interface
77:鎚體 77: Hammer
D1:軸向 D1: Axial
D2:延伸方向 D2: Extension direction
D3:軸向 D3: Axial
81:槍柄部 81: Gun handle
82:槍管部 82: Barrel Department
83:進氣通道 83: intake channel
84:進氣閥 84: intake valve
85:鎚體 85: Hammer
86:空間 86: Space
87:橡膠軟塊 87: Rubber soft block
88:彈簧 88: spring
91:柄部 91: handle
92:管部 92: Pipe Department
93:進氣通道 93: intake channel
94:鎚體 94: Hammer
第1圖為本發明第一實施例之剖面示意圖;第2圖為本發明第一實施例之動作狀態剖面示意圖;第3圖為本發明第二實施例之剖面示意圖;第4圖為習知槍形氣動鎚之剖面示意圖;第5圖為習知直筒形氣動鎚之剖面示意圖。 Figure 1 is a schematic cross-sectional view of the first embodiment of the present invention; Figure 2 is a schematic cross-sectional view of the operating state of the first embodiment of the present invention; Figure 3 is a schematic cross-sectional view of the second embodiment of the present invention; Figure 4 is a conventional A schematic cross-sectional view of a gun-shaped pneumatic hammer; Figure 5 is a schematic cross-sectional view of a conventional straight cylindrical pneumatic hammer.
請參閱第1圖,所示者為本發明提供之氣動鎚之減振構造的第一實施例,其包括有一形成槍形之握柄1、一外管2、一內管3及一連接通道4。該握柄1之頂部設有一具開口端111之凹室11,該凹室11沿一軸向D1延伸且具有一底壁12。該握柄1之底部設有一向上延伸並連通至該凹室11之進氣通道13,以供連接外部的高壓氣體供應源,其中該進氣通道13的延伸方向D2與上述該軸向D1之間形成一夾角。該進氣通道13中設有一控制氣流通過的控制閥14,並於該握柄1之一側以一按鈕15連接該控制閥14以供操作。
Please refer to Figure 1, which shows the first embodiment of the vibration damping structure of the pneumatic hammer provided by the present invention, which includes a gun-shaped handle 1, an
承上,該凹室11之開口端111以螺紋固鎖一外管2。該外管2中容置有一可活動的內管3,該內管3包括有一位於前方的槍管31及一位於後方的筒蓋32,其中該筒蓋32伸於該凹室11中。該槍管31中設有一可動的鎚體33,且該筒蓋32中設有一進氣閥34,該筒蓋32之一側又設有一穿孔321,其中該穿孔321使該進氣通道13連通至該進氣閥34。據此,高壓氣體自該進氣通道13進入該凹室11後,經由該穿孔321進入該筒蓋32中,並被該進氣閥34注入該槍管31,以驅動該鎚體33在該槍管31中往復移動以供執行作業之用。
On the other hand, the
上述該筒蓋32具有一端壁322,其與該底壁12之間形成有一氣室5。該筒蓋32之周側環設有至少一個密接該凹室11之第一氣密封件323,藉此封閉該筒蓋32與該凹室11之間的間隙,以及至少一個抵接該凹室11之耐磨支撐環件324,藉此減輕筒蓋32在振動中與凹室11之
間的磨損。於本實施例中,該氣室5中設有一頂推該端壁322之彈性支撐件,更進一步界定為一彈簧6,用以維持該筒蓋32的位置。
The
該握柄1中設有一連通該進氣通道13與該氣室5之連接通道4,使高壓氣體導入該進氣通道13之後可經該連接通道4進入該氣室5。於本實施例中,該連接通道4連接該進氣通道13之接口41位於該控制閥14之上游處,因此無須透過該按鈕15打開該控制閥14,高壓氣體就可以常態地注入該氣室5,使其壓力常態維持在高於環境壓力的狀態。
The handle 1 is provided with a connecting
上述該連接通道4係由該握柄1之一側朝該進氣通道13及該氣室5之方向鑽孔製成,因而在該進氣通道13連接該連接通道4之相對側具有一與該連接通道4同向延伸之施工孔16,該施工孔16須以一第二氣密封件17加以封閉,避免漏氣。
The above-mentioned connecting
藉由上述結構,由於高壓氣體經由該連接通道4常態地注入該氣室5,使該氣室5內的壓力維持在高於環境壓力的狀態,而可用以抵抗該鎚體33在往復位移時所產生之振動,即利用高壓空氣做為抑振的緩衝墊。
With the above structure, since high-pressure gas is normally injected into the
細言之,如第2圖所示,當該鎚體33向後移動引致該內管3形成振動時(註:實際的振動幅度甚小,未如圖所示地大),該氣室5內的空氣因高壓而對該內管3形成一股支撐力量,且因此支撐力量係由持續供應的高壓空氣形成,其在受到該鎚體33以每分鐘數千次高頻振動的擠壓之下,仍能迅速、及時地回復原狀而達到良好的支撐效果。
In detail, as shown in Figure 2, when the
另一方面,由於高壓空氣為沒有具體形狀的物質,其在遭受擠壓時不會產生如硬物相碰撞時的晃動感,而能有效減輕振動。此外,該彈簧6亦對該內管3產生支撐作用,與空氣共同減輕該內管3的振動。
On the other hand, because the high-pressure air is a substance with no specific shape, it will not produce a feeling of shaking when it is squeezed, such as when a hard object collides, and can effectively reduce vibration. In addition, the
更進一步地,由於高壓氣體充滿該氣室5,而及於該內管3端壁322的整個面積,故前述高壓氣體能全面且均勻地作用在該端壁322上,使減振效果達到最大。
Furthermore, since the high-pressure gas fills the
再者,本發明係採用高壓空氣減輕該內管3的振動,而非有形的彈性物(如橡膠塊等),杜絕有形物體在受到高頻振動之下所產生的彈性疲乏現象,能在長時間使用之下仍能維持減振的效果不變,而具有耐用性。
Furthermore, the present invention uses high-pressure air to reduce the vibration of the
雖然氣動鎚使用越高壓的空氣驅動可以達到越好的作動效率,卻同時會造成越大的振動。然而在本發明中,由於驅動氣動鎚的高壓氣體與注入該氣室5以形成抑振作用的高壓氣體是同一來源,即在以高壓氣體驅動氣動鎚以達高效作動的同時,亦能獲得良好的抑振效果,故可消除前述習知氣動鎚在追求效率與遭受振動的兩難問題。
Although pneumatic hammers use higher pressure air drive to achieve better operating efficiency, but at the same time it will cause greater vibration. However, in the present invention, since the high-pressure gas that drives the pneumatic hammer and the high-pressure gas injected into the
第3圖所示者為本發明之第二實施例,本實施例之結構係以前述第一實施例之結構為基礎,而在構件的空間配置上形成變化。 Figure 3 shows the second embodiment of the present invention. The structure of this embodiment is based on the structure of the first embodiment described above, with changes in the spatial arrangement of the components.
於本實施例中,該握柄71形成沿一軸向D3延伸的直筒形,並沿該軸向D3凹設一凹室72,而外部的高壓氣體供應源係連接於該握柄71之尾端,且該握柄71中設有一沿平行於該軸向D3之方向朝前方延伸之進氣通道73,並連接至該凹室72,其中該進氣通道73中設有一控制氣流通過的控制閥731。該筒蓋74之一側又設有一穿孔742,其中該穿孔742使該進氣通道73連通至該進氣閥743。
In this embodiment, the
該凹室72之底壁721固定有一筒件722,該筒件722朝該筒蓋74方向伸出一第一環牆723。該筒蓋74後端之端壁741朝該筒件722方向伸出一第二環牆744,且該第二環牆744氣密地連接在該
筒件722之第一環牆723的外側,據此圍成一氣室75,於本實施例中,氣室75內設有一彈簧751。該第一環牆723與該第二環牆744之間設有一個第三氣密封件724,藉此封閉該第一環牆723與該第二環牆744之間的間隙,並隔開該氣室75與該凹室72。
A
該氣室75與該進氣通道73以一連接通道76連接,該連接通道76與該進氣通道73所相連之接口761位於該控制閥731之上游處,使高壓氣體直接且持續注入該氣室75,使該氣室75內的壓力維持在高於環境壓力的狀態,而可用以抵抗該鎚體77在往復位移時所產生之振動。
The
據此,第二實施例亦可達到如同前述第一實施例之減振及提升耐用性之功效。 Accordingly, the second embodiment can also achieve the effects of damping and improving durability as the aforementioned first embodiment.
惟,以上實施例之揭示僅用以說明本發明,並非用以限制本發明,舉凡等效元件之置換仍應隸屬本發明之範疇。 However, the disclosure of the above embodiments is only used to illustrate the present invention, not to limit the present invention. Any replacement of equivalent elements should still belong to the scope of the present invention.
綜上所述,可使熟知本領域技術者明瞭本發明確可達成前述目的,實已符合專利法之規定,爰依法提出申請。 In summary, those skilled in the art can understand that this invention clearly achieves the aforementioned purpose, and that it has actually complied with the provisions of the Patent Law, so it is necessary to file an application in accordance with the law.
1:握柄 1: grip
11:凹室 11: Alcove
111:開口端 111: open end
12:底壁 12: bottom wall
13:進氣通道 13: intake channel
14:控制閥 14: Control valve
15:按鈕 15: Button
16:施工孔 16: Construction hole
17:第二氣密封件 17: The second air seal
2:外管 2: Outer tube
3:內管 3: inner tube
31:槍管 31: Barrel
32:筒蓋 32: Cylinder cover
321:穿孔 321: Piercing
322:端壁 322: End Wall
323:第一氣密封件 323: The first air seal
324:耐磨支撐環件 324: Wear-resistant support ring
33:鎚體 33: Hammer
34:進氣閥 34: intake valve
4:連接通道 4: connection channel
41:接口 41: Interface
5:氣室 5: Air chamber
6:彈簧 6: Spring
D1:軸向 D1: Axial
D2:延伸方向 D2: Extension direction
Claims (7)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW109102451 | 2020-01-22 | ||
TW109102451 | 2020-01-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
TWI729809B true TWI729809B (en) | 2021-06-01 |
TW202128375A TW202128375A (en) | 2021-08-01 |
Family
ID=77517484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW109116006A TWI729809B (en) | 2020-01-22 | 2020-05-14 | Vibration damping structure of pneumatic hammer |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI729809B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI746323B (en) * | 2020-12-21 | 2021-11-11 | 馬頓企業股份有限公司 | Pneumatic percussion device and its actuation method |
US11571797B1 (en) | 2022-02-11 | 2023-02-07 | Storm Pneumatic Tool Co., Ltd. | Pneumatic impact tool having vibration reducing structure |
US11602831B1 (en) | 2022-01-21 | 2023-03-14 | Storm Pneumatic Tool Co., Ltd. | Air impact tool having improved vibration-damping structure |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200536687A (en) * | 2004-05-04 | 2005-11-16 | Rui-long HUANG | Vibration damping device for pneumatic tool |
TWM528845U (en) * | 2016-06-16 | 2016-09-21 | Jin-Kuan Xie | Shock damping structure of pneumatic tool |
-
2020
- 2020-05-14 TW TW109116006A patent/TWI729809B/en active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW200536687A (en) * | 2004-05-04 | 2005-11-16 | Rui-long HUANG | Vibration damping device for pneumatic tool |
TWM528845U (en) * | 2016-06-16 | 2016-09-21 | Jin-Kuan Xie | Shock damping structure of pneumatic tool |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI746323B (en) * | 2020-12-21 | 2021-11-11 | 馬頓企業股份有限公司 | Pneumatic percussion device and its actuation method |
US11602831B1 (en) | 2022-01-21 | 2023-03-14 | Storm Pneumatic Tool Co., Ltd. | Air impact tool having improved vibration-damping structure |
DE102022121647A1 (en) | 2022-01-21 | 2023-07-27 | Storm Pneumatic Tool Co., Ltd. | Pneumatic impact tool with improved anti-vibration structure |
US11571797B1 (en) | 2022-02-11 | 2023-02-07 | Storm Pneumatic Tool Co., Ltd. | Pneumatic impact tool having vibration reducing structure |
Also Published As
Publication number | Publication date |
---|---|
TW202128375A (en) | 2021-08-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI729809B (en) | Vibration damping structure of pneumatic hammer | |
US20190344418A1 (en) | Pneumatic Tool with Shock Absorber | |
US20210245350A1 (en) | Vibration reducing structure of pneumatic hammer | |
US4594759A (en) | Surface-chiseling machine | |
JP2022167841A (en) | Air stop sheet of piston body of cylinder | |
CN113153964A (en) | Vibration damping structure of pneumatic hammer | |
CN210819413U (en) | Gun type pneumatic shovel | |
TWM592812U (en) | Damping structure of pneumatic hammer | |
TWM501339U (en) | Cylinder cushioning device of pneumatic tool | |
JP5758273B2 (en) | Driving tool | |
TWM626640U (en) | Pneumatic impact tool with improved vibration damping structure | |
US9616561B2 (en) | Nail gun having a dry firing prevention device | |
JP6211398B2 (en) | Driving tool | |
US20210245349A1 (en) | Vibration reducing structure of pneumatic hammer | |
TW201313406A (en) | Driver | |
TWM525824U (en) | Impact-resistant structure of reciprocating pneumatic tool | |
JP5992865B2 (en) | Forced valve type piston pump | |
TWI792834B (en) | Vibration-absorbing structure of pneumatic impact tool | |
CN209414103U (en) | A kind of compressor noise-reduction cylinder head | |
CN216883815U (en) | Vibration damping structure of pneumatic impact tool | |
TW202210246A (en) | Pneumatic impact tool relieves the vibration caused by the reciprocation movement of piston stem in gas cylinder by using the air suction impact force in first gas chamber and second gas chamber | |
TWI792899B (en) | Pneumatic impact tool with vibration-absorbing structure | |
TWI778908B (en) | Pneumatic impact tool with improved damping structure | |
JP6604936B2 (en) | Driving tool | |
TWM517079U (en) | Reciprocating pneumatic tool |