• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The tool has a handle (1) fixed to a body (5) and a side inlet passage (2) with a valve seat (6). In the body a movable working cylinder (11) is held away from the handle by means of a spring (22) and provided with inlet (15) and exhaust holes, a distribution system (16) and a striking piston (17), cooperating with a working tool. Inside the body is a liner (7) in which the working cylinder is guided by means of two guide collars (10a, 10b) defining with the inner wall of the liner an annular recess, into which there opens an inlet passage (9) interconnected with the handle by means of passages (1a, 6a) in the valve seat and handle. A hollow face of the handle is closed by a flange of the guide bush (23) of the spring, where the supporting face of the plunger (20), which is attached to the working cylinder, is slidingly guided. <IMAGE>
    公开号:SU1256952A1
    申请号:SU827772353
    申请日:1982-04-06
    公开日:1986-09-15
    发明作者:Коуделка Владимир
    申请人:Пермон,Национальное Предприятие (Инопредприятие)；
    IPC主号:
    专利说明:

    one
    The invention relates to hand-held pneumatic impact tools and can be used in mechanical engineering, construction, mining and other industries.
    Hand-held pneumatic percussion instruments are known, comprising a handle body and a working tool sprung from it axially in relation to it (USSR Author's Certificate No. 477236, cl. B 25 D 17/24, 1970).
    A disadvantage of the known devices is the insufficient reduction of the vibration transmitted to the handle.
    The closest to the invention according to the technical nature is a pneumatic percussion instrument, comprising a housing with a handle and an air passage channel, housed in the housing and a working cylinder axially springed relative to it, an air distribution mechanism located therein, a shock piston and connected to the working cylinder a casing designed to accommodate a working tool (French Patent No. 1059349, class B 25 D, 1952).
    The disadvantage of this tool is the intense vibration of the handle caused by pressure pulsing in the air channel, due to the variable intake of compressed air into the working and idling chambers and the rapid change in the volume of these chambers.
    The purpose of the invention is to reduce vibration.
    This goal is achieved by the fact that a hand-held pneumatic percussion instrument, comprising a housing with a handle and an air feed channel, housed in the housing and axially spring-loaded with respect to the working cylinder with inlet and exhaust holes, an air distribution mechanism inside it, a shock piston and a casing connected to the working cylinder for accommodating the working tool is provided with a housing located coaxially and enclosing the end of the working cylinder facing the handle a main bushing with a radial bore, an additional bushing with a flange mounted on the end face of the working cylinder and a shutter forming the cavity with the latter and the casing communicating through the radial channel in the casing with the air inlet channel on the side surface of the working cylinder Two running paths are made, interacting with the inner surface of the main sleeve and forming a ring with it and the outer surface of the working cylinder -hand chamber communicating through a radial hole of the sleeve with the main
    air passage and through the inlet of the working cylinder with the air distribution mechanism.
    In addition, the tool is provided with sealing rings that interact with the inner surface of the main sleeve placed in the grooves made in the running gears.
    The instrument is provided with a body mounted silencer covering
    a part of the working cylinder with exhaust openings, and a working cylinder mounted with a coaxial cylinder with a casing with the possibility of axial movement relative to them with a tubular handle associated with a noise damper.
    The drawing shows a hand pneumatic percussion instrument.
    The tool includes a housing 5, in which a radial channel 1a and an air inlet channel 9 are made, which is blocked by the starting valve 3 by interacting with the sleeve 6 disposed in this channel. The sleeve 6 has a radial channel 6a, made coaxial to the radial channel 1a of the housing 5. The handle 5 is attached to the housing 5 with screws 4. The working cylinder 11 is placed in the housing 5, in which the inlet holes 15 and the outlet holes 32 are placed and the air distribution mechanism 16 is located; 7, having a radial opening 8 and mounted coaxially to the housing 5 and enclosing the end of the working cylinder 11 enclosed to the handle 1, an additional sleeve 23 with a flange mounted on the end of the main sleeve 7 facing the handle 1, and The shutter 20, mounted on the handle facing the one end of the cylinder 11 and cooperating with the inner surface of the additional sleeve 23.
    The working cylinder 11 is axially spring-loaded with respect to the housing 5 by means of a spring 22 placed between the supporting end 21 of the shutter 20 and the inner end surface of the housing 5. The shutter 20 with its supporting end 21 and the additional sleeve 23 forms a cavity 25 through the housing 5 and 6a communicates with the air duct
    channel 9. In the main sleeve 7, an additional sleeve 23, a shutter 20 and an end face of the working cylinder 11 facing the handle 1 form a cavity 24, which is connected with the atmosphere through a through hole 26 in the main sleeve 7 and the housing 5. On the side surface of the working cylinder 11 there are two running tracks 10a and 106 with grooves in which the sealing piston rings 13a and 136 are placed, interacting with the inner surface of the main sleeve 7.
    In the main sleeve 7 there is an elastic stop 12, which interacts with the running cylinder 13a of the working cylinder 11 and restricts the latter to move away from the handle 1. The running ways 10a and 106 together with the outer surface of the working cylinder 11 and the inner surface of the main sleeve 7 form an annular chamber 14, which communicates through the radial opening 8 of the main bushing 7 with the air below the water passage 9 and through the outlet openings 15 of the working cylinder 11 with the air distribution mechanism 16.
    In the working cylinder 11 is placed shock porschen17, forming in it the chambers 18 and 19, respectively, working and idle strokes. With the working cylinder 11 is connected and locked on it by a retaining ring 30 a housing 28, in which the working tool 27 is placed with the shoulders 27a, and a shock absorber 29 interacting with the latter.
    The housing 5 is equipped with a silencer 31, which encloses part of the working cylinder 11, on which exhaust ports 32 are made. The coaxial handle 33, which is connected to the silencer 31 and has axial displacement, is installed coaxially to the working cylinder 11 and the casing 28. To connect the instrument to the compressed air network, a fitting 2 is mounted on its housing 5.
    Manual pneumatic percussion instrument operates as follows.
    After opening the starting valve 3, the compressed air through the fitting 2, the sleeve 6, the air supplying channel 9, the radial channel 8 enters the annular chamber 14, and from there through the inlets 15 to the air distributing mechanism 16. At the same time, the compressed air flows through the radial channels 6a and 1a the cavity 25 and acts on the supporting end 21 of the shutter 20, presses the working cylinder 11 in the axial direction. Through the corresponding channels (not shown), the compressed air alternately enters chambers 18 and 19, respectively, of the working and idling strokes, causing the impact piston 17 to make the working and idling strokes.
    The vibration that occurs at the time of the impact by the shock piston 17 on the working tool 27 and when the shock piston 17 bounces, causes the working cylinder 11 to oscillate. These
    the oscillatory movements are not transferred to the handle 1 fully, but are extinguished by the spring 22 and the air cushion in the cavity 25, which are affected by the shutter 20 by its supporting end 21 when the working cylinder 11 is axially moved to the handle 1. The oscillatory movements of the working cylinder 11 also are not transmitted in full to the tube-shaped handle 33, due to its axial movement relative to the working cylinder 11. The talismania in the grooves in seconds 10a and 106 of the sealing piston rings 13a and 136 ensures the density of the annular chamber 14 and eliminates the need shedding of the working cylinder 11 in the main bushing 7 and the appearance of additional vibration. Since cavity 24 is connected continuously
    5 with the atmosphere through the through-hole 26, this prevents undesirable pressure changes in the cavity 24 when the working cylinder 11 oscillates, which also contributes to reducing vibration.
    The additional vibration, which occurs when the axial interaction of the running gear 136 of the main sleeve 7 and the shoulder 27a of the working tool 27 with the housing 28, is suppressed by an elastic stop 12 and a shock absorber 29, respectively.
    The proposed embodiment of a manual pneumatic percussion instrument allows a significant reduction in the vibration arising from its operation.
    27a
    VNIIPIZakaz 4870/3
    Circulation 1031 Subscription
    Branch PPP "Patent,
    Uzhgorod, Projecto st., 4
    权利要求:
    Claims (3)
    [1]
    1. MANUAL PNEUMATIC SHOCKING TOOL, comprising a housing 5 with a handle 1 and an air supply channel 9, housed in the housing 5 and axially spring-loaded relative to it, a working cylinder 11 with inlet 15 and exhaust 32 holes, an air distribution mechanism 16 disposed therein, an impact piston 17 and a casing 28 connected to the working cylinder 11, designed to accommodate the working tool 27, characterized in that, in order to reduce vibration, it is provided with a housing 5 coaxially located and covering facing p one end of the working cylinder 11 with the main sleeve 7 with a radial hole 8, an additional sleeve 23 with a flange mounted in the end of the main sleeve 7, mounted on the end of the working cylinder 11 and interacting with the inner surface of the additional sleeve 23 with a shutter 20, forming with the latter and the housing 5 the cavity communicated by means of a radial channel 1a made in the housing 5 with the air supply channel 9, on the side surface of the working cylinder 11 there are two running belts 10a and 106 interacting with the inner surface 7 rhnostyu core sleeve and forming with it and the outer surface of the working cylinder and the annular chamber 14 communicating through a radial bore 8 of the sleeve 7 with the main air supply channel 9 and through the inlet opening 15 of the working cylinder 11 to the air distributor mechanism 16.
    [2]
    2. The tool on π. 1, characterized in that it is provided with grooved piston rings 13a, 136 arranged in grooves made in the travel zones 10a and 106, interacting with the inner surface of the main sleeve 7.
    [3]
    3. The tool on π. 1, characterized in that it is equipped with a silencer 31 mounted on the housing 5, covering part of the working cylinder 11 with exhaust holes 32, and coaxially mounted to the working cylinder 11 with a casing 28 with the possibility of axial movement relative to them by a tube-shaped handle 33 connected to the silencer 31 .
    (L сл sl © 5 ς © SP о
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1256952A1|1986-09-15|Hand-held pneumatically actuated percussive tools
    KR960034761A|1996-10-24|Pneumatic cylinder
    SE7503038L|1976-09-19|SLIDING DRILLING KIT AND DEVICE FOR DAMPING REFLEXES FROM A WORKING TOOL
    US2500036A|1950-03-07|Cushioned handle for portable percussive tools
    US3970153A|1976-07-20|Pneumatic percussion machines
    US4327807A|1982-05-04|Percussion tool casing
    US3332504A|1967-07-25|Impact tool
    US4673042A|1987-06-16|Pneumatic hammer
    US5044254A|1991-09-03|Reciprocating air motor
    SU776569A3|1980-10-30|Hydraulic shocking device
    US4351225A|1982-09-28|Vibration attenuation construction for an impact air tool
    GB2395456A|2004-05-26|Hand held machine tool
    CS194089A2|1991-09-15|Pneumatic nailing machine
    SU996727A2|1983-02-15|Pneumatic perforator drill
    EP0335328A3|1991-08-21|Compressed-air supply system of vibro-isolated tools
    GB2138728A|1984-10-31|Pneumatic impact tool
    SU1307037A1|1987-04-30|Pneumatic percussive mechanism for driving elongated rods into soil
    SU1654564A1|1991-06-07|Downhole pneumatic hammer
    RU2028926C1|1995-02-20|Air-operated hammer with a handle isolated from vibration
    SU998740A2|1983-02-23|Pneumatic percussive mechanism
    SU1263518A1|1986-10-15|Vibration-proof pneumatic percussive machine
    SU848615A1|1981-07-23|Pneumatic percussive mechanism
    RU46812U1|2005-07-27|PNEUMATIC HAMMER
    RU2003120290A|2005-01-10|HYDRAULIC CONTROL DEVICE
    RU2016755C1|1994-07-30|Pneumatic hammer
    同族专利:
    公开号 | 公开日
    CS226230B1|1984-03-19|
    AT383077B|1987-05-11|
    ATA163682A|1986-10-15|
    FI821244L|1982-10-29|
    FR2504440A1|1982-10-29|
    GB2098531B|1984-06-13|
    HU192751B|1987-07-28|
    GB2098531A|1982-11-24|
    SE8202626L|1982-10-29|
    CH655037A5|1986-03-27|
    DD236641A3|1986-06-18|
    FR2504440B1|1984-10-26|
    FI821244A0|1982-04-07|
    DE3212701A1|1982-11-11|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO1993006972A1|1991-10-09|1993-04-15|Sovmestnoe Sovetsko-Finskoe Predpriyatie Rpf-D|Pneumatic hammer|FR1059349A|1951-09-07|1954-03-24|Pneumatic hammer|
    DE963948C|1952-05-03|1957-05-16|Hauhinco Maschf|Pneumatic hammer with push handle|
    US2899934A|1956-01-19|1959-08-18|salengro |
    US3456744A|1967-11-24|1969-07-22|Samuel Altschuler|Vibrationless pneumatic tool|
    DE2424136B2|1974-05-17|1976-09-02|Wsesojusny nautschno-issledowatelskij i projektno-konstruktorskij institut mechanisirowannowo i rutschnowo stroitelnomontaschnowo instrumente, wibratorow i stroitelno-otdelotschnych maschin, Chimki Moskowskoj oblasti |PNEUMATIC HAMMER|
    FR2272797B1|1974-05-30|1977-03-11|Inst Mekhanizirovannogo I Ruch|
    GB1587611A|1977-10-14|1981-04-08|Secretary Industry Brit|Resilient mountings for fluid reciprocated tools|
    FR2454875A1|1979-04-25|1980-11-21|Pt Instit|Portable pneumatic percussion tool - has conical spring fitted between valve plate and inlet tube to absorb shocks|
    FR2456593B1|1979-05-15|1982-07-23|Montabert Roger|FR2540418A1|1983-02-07|1984-08-10|Helliot Bernard|Improvements made to percussion apparatuses|
    DE3319875A1|1983-06-01|1984-12-06|Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt|Electropneumatic hammer drill|
    JPS60501698A|1983-06-29|1985-10-11|
    SE460266B|1986-05-12|1989-09-25|Eskil Sundstroem|VIBRATION PROTECTION IN AN ENGINE-DRIVEN VIBRATION DRIVE HAND TOOL|
    EP0471649A1|1990-08-16|1992-02-19|SIG Schweizerische Industrie-Gesellschaft|Fluid pressure-operated hammer|
    GB9206978D0|1992-03-31|1992-05-13|Compair Power Tools|Improvements in pneumatic power tools|
    DE19746447C2|1997-10-21|2002-11-07|Biax Maschinen Gmbh Steckborn|Hand tool with a linear vibratory drive|
    CN109322234B|2018-10-22|2020-12-22|无锡国家高新技术产业开发区市政公用事业有限公司|Road construction road surface slotting device based on laborsaving angle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS317481A|CS226230B1|1981-04-28|1981-04-28|Manual pneumatic percussive tool|
    [返回顶部]