Hydropneumatic percussive tool
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IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0384492
(1982-06-03)
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발명자
/ 주소 |
- Yantsen Ivan A. (bulvar Mira
- 40
- kv. 2 Karaganda SUX) Bekishev Kenes K. (ulitsa Furmanova
- 148
- kv. 50 Alma-Ata SUX) Savchak Orest G. (ulitsa Satpaeva
- 58
- kv. 1 Karaganda SUX) Klok Alexandr B
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인용정보 |
피인용 횟수 :
9 인용 특허 :
3 |
초록
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A vibration or reciprocating hydraulically driven impact tool for breaking up paving, compacting soil, or similar construction purposes. The tool employs a piston situated in a housing and configured to form (in cooperation with the housing) three chambers. One of the chambers is filled with a compr
A vibration or reciprocating hydraulically driven impact tool for breaking up paving, compacting soil, or similar construction purposes. The tool employs a piston situated in a housing and configured to form (in cooperation with the housing) three chambers. One of the chambers is filled with a compressed gas which acts as a shock absorber/spring, with the other two chambers serving to drive adjacent flanges of the piston in opposite directions to provide reciprocating action. The device is constructed so that when no mechanical force is applied to the handle, the piston is at rest in its forward position (being urged there by the compressed gas), with the hydraulic forces acting upon the piston shoulders being balanced. When the handle is pushed forward, the hydraulic system is altered so that unbalanced forces act on the piston flanges, causing the piston to start moving. Thereafter, a hydraulic valve system provides the desired reciprocating motion of the piston.
대표청구항
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A hydropneumatic percussive tool, comprising: (a) an elongated casing having a longitudinal axis; (b) a hollow elongated generally cylindrical housing having radial passages therein, said housing being slidably mounted within said casing for reciprocation relative to said casing along said longitudi
A hydropneumatic percussive tool, comprising: (a) an elongated casing having a longitudinal axis; (b) a hollow elongated generally cylindrical housing having radial passages therein, said housing being slidably mounted within said casing for reciprocation relative to said casing along said longitudinal axis; (c) an implement having a working portion external to said casing, said implement having a shank aligned with said longitudinal axis and extending into an adjacent end of said housing through a hole in said casing, said shank being slidably movable along said axis with respect to said casing and said housing, and having an impact-receiving end disposed within said housing, said implement having a first collar surrounding and secured to said shank external to said casing, for restricting inward movement of said implement with respect to said casing, said implement having a second collar surrounding and secured to said shank within said casing and external to said housing, for permitting said housing to drive said implement by engagement of said second collar by said adjacent end of said housing; (d) a piston hammer of stepped configuration disposed within said housing and having an annular groove therein, said piston hammer having an impact-transmitting end disposed adjacent said impact-receiving end of said implement shaft, said piston hammer having portions of larger and smaller diameter separating the interior of said housing into first, second and third chambers. said first chamber being in communication with a pressure passageway extending through one of said radial passages of said housing, said second chamber being in communication with a discharge passageway extending through another one of said radial passages of said housing, said third chamber being adapted to be filled with a compressed gas to serve as a pneumatic accumulator; (e) the distance between said radial passages of said housing through which said pressure and discharge passageways extend, being greater than the maximum distance between said impact-transmitting end of said piston hammer and said impact-receiving end of said implement shaft; (f) a tubular element disposed within said housing adjacent an end of said housing remote from said implement shank, said tubular element being separate from said piston hammer and disposed coaxially with said shank of said implement, one end of said tubular element extending into said third chamber, the other end of said tubular element cooperating with said casing to transmit thereto a force from said pneumatic accumulator; and (g) a hydraulic distributor having a cylindrical chamber, with a control valve slidably disposed within said cylindrical chamber and dividing said cylindrical chamber into two portions, one of said cylindrical chamber portions being in continuous communication with said second chamber via the radial passage through which said discharge passageway extends, the other of said cylindrical chamber portions communicating with said annular groove of said piston hammer via another of said radial passages in said housing, a port extending through a wall of said hydraulic distributor adjacent said cylindrical chamber, said port being in communication with said first chamber, said port periodically communicating with said cylindrical chamber when said port is not blocked by said control valve, said port being periodically blocked from communication with said cylindrical chamber by said control valve.
이 특허에 인용된 특허 (3)
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Henriksson Stig R. (Nacka SEX), Hydraulically operated impact motor.
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Okada Hiroshi (Suita JA), Impact tool.
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Bouyoucos John V. (Rochester NY), Pile driver.
이 특허를 인용한 특허 (9)
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Hodges Richard N., Hydraulic impact tool.
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Yantsen Ivan A. (bulvar Mira ; 40 ; kv. 2 Karaganda SUX) Bekishev Kenes K. (ulitsa Furmanova ; 148 ; kv. 50 Alma-Ata SUX) Savchak Orest G. (ulitsa Satpaeva ; 58 ; kv. 1 Karaganda SUX) Klok Alexandr B, Hydropneumatic percussive tool.
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Oda,Hiroyuki; Terunuma,Yukio; Ogura,Masayuki, Impact hammer drill.
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Ottestad,Jack B.; Berard,Craig A., Impact tool.
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Koskim?ki, Antti, Method for controlling operating cycle of impact device, and impact device.
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Hain Klaus (Leonberg DEX) Beer Michael (Wimsheim DEX) Gietzen Staas (Obereisesheim DEX), Multi-cylinder internal combustion engine with externally applied ignition and with turbocharger.
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Duval, Maurice, Pneumatic impact tool.
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Shepherd John, Roofing shovel.
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Shepherd John, Roofing shovel.
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