JPS62114905U

JPS62114905U -

Info

Publication number: JPS62114905U
Application number: JP153986U
Authority: JP
Priority date: 1986-01-09
Filing date: 1986-01-09
Publication date: 1987-07-22

Description

[Brief explanation of the drawing]

第１図は本考案の幽圧ランマの概要図、第２図
は油圧ランマの構成である油圧発振機の内部構造
と油圧の回路構成を示す概要図である。１……操作弁部、２……振動ピストン部、３…
…発振弁部、４……ガイドシリンダ、５……ウエ
イト、６……締固め板、７……摺動筒、８……油
圧ピストン、９……発振スプール、１０……ばね
、１１……操作スプール、１２……給油ポート、
１３……排油ポート、１４……出力ポート、１５
……排出ポート、１６……シリンダ、１７……固
定スリーブ、１８……摺動スリーブ、１９……環
状溝、２０……常時加圧室、２１……交番加圧室
、２２……ストローク調整手段、２３……入力ポ
ート、２４……連通ポート、２５……交番圧ポー
ト、２６……吐出ポート、２７……パイロツトポ
ート、２８……タンクポート、２９……パイロツ
ト高圧ポート、３０……高圧環状溝、３１……低
圧環状溝、３２……大径ニードル、３３……小径
ニードル、３４……交番室、３５……交番室ポー
ト、３６……常圧室、３７……常圧ポート、３８
……高圧交番ポート、３９……低圧ポート、４０
……タンクポート、４１……高圧ポート、４２…
…油圧ホース、４３……ハンドル、４４……地面
、４５……ロツク、４６……ばね、 FIG. 1 is a schematic diagram of the hydraulic rammer of the present invention, and FIG. 2 is a schematic diagram showing the internal structure and hydraulic circuit configuration of a hydraulic oscillator, which is the configuration of the hydraulic rammer. 1... Operating valve part, 2... Vibrating piston part, 3...
...Oscillating valve part, 4...Guide cylinder, 5...Weight, 6...Compaction plate, 7...Sliding tube, 8...Hydraulic piston, 9...Oscillating spool, 10...Spring, 11... Operation spool, 12... Refueling port,
13...Drain port, 14...Output port, 15
... Discharge port, 16 ... Cylinder, 17 ... Fixed sleeve, 18 ... Sliding sleeve, 19 ... Annular groove, 20 ... Constant pressure chamber, 21 ... Alternate pressure chamber, 22 ... Stroke adjustment means, 23...input port, 24...communication port, 25...alternating pressure port, 26...discharge port, 27...pilot port, 28...tank port, 29...pilot high pressure port, 30...high pressure Annular groove, 31... Low pressure annular groove, 32... Large diameter needle, 33... Small diameter needle, 34... Alternating chamber, 35... Alternating chamber port, 36... Normal pressure chamber, 37... Normal pressure port, 38
...High pressure alternating port, 39...Low pressure port, 40
... Tank port, 41 ... High pressure port, 42 ...
...Hydraulic hose, 43...Handle, 44...Ground, 45...Lock, 46...Spring,

Claims

[Scope of Claim for Utility Model Registration] (1) A hydraulic oscillator consisting of an operating valve part 1, a vibrating piston part 2, and an oscillating valve part 3 is equipped with a weight 5 having a guide cylinder 4, and is integrated with a compaction plate 6. The sliding tube 7 is slidably fitted into the guide cylinder 4, and the vibration of the hydraulic piston 8, which vibrates due to the interaction between the hydraulic piston 8 of the vibrating piston section 2 and the oscillating spool 9 of the oscillating valve section 3, is absorbed by the spring 10. The information is transmitted to the compaction plate 6 via the compaction plate 6, and the ground is struck by the compaction plate 6.
Hydraulic rammer characterized by compaction. (2) The operating valve section 1 of the hydraulic oscillator has an operating spool 11 that supplies high-pressure oil from an external hydraulic source to the vibrating piston section 2, and a handle 43 for operating the operating spool 11, and communicates with the external hydraulic source. It has an oil supply port 12, an oil drain port 13, an output port 14 and a discharge port 15 that communicate with the vibrating piston part 2 and the oscillating valve part 3, and the vibrating piston part 2 has a medium diameter part and a large diameter part inside the cylinder 16. A fixed sleeve 17 consisting of a small diameter portion and a sliding sleeve 18 consisting of a large diameter portion,
Their large-diameter open ends are arranged to face each other, and the hydraulic piston 8 with an annular groove 19 is inserted into the fixed sleeve 17 and the sliding sleeve 18, and the hydraulic piston 8 and the fixed sleeve 17 and A constant pressurizing chamber 20 and an alternating pressurizing chamber 21 are formed between the sliding sleeve 18 and the sliding sleeve 1.
8 is equipped with a stroke adjusting means 22 for sliding the sliding sleeve 18, and the output port 14 of the operating valve section 1 and the constant pressurizing chamber 20
and an input port 23 that communicates with the constantly pressurized chamber 2.
Communication port 2 that supplies high pressure oil of 0 to the oscillation valve section 3
4, an alternating pressure port 25 which receives alternating pressure oil from the oscillation valve part 3 into the alternating pressure chamber 21, a discharge port 26 which discharges it to the oscillation valve part 3, and a hydraulic piston via the large diameter part of the fixed sleeve 17. 8 annular groove 1
9, and a tank port 28 and a pilot high pressure port 29 which alternately communicate with the pilot port 27 through the annular groove 19 by the vibration of the hydraulic piston 8. is the discharge port 15, the pilot high pressure port 29 is communicated with the communication port 24, and the oscillation valve portion 3 is connected to the high pressure annular groove 30 and the low pressure annular groove 31.
A large-diameter needle 32 and a small-diameter needle 33 are brought into contact with both end surfaces of an oscillating spool 9 having an oscillating spool 9, and an alternating chamber 34 formed on the other end surface of the large-diameter needle 32 is communicated with the pilot port 27 of the vibrating piston portion 2. A normal pressure port 3 that communicates between the alternating chamber port 35, the normal pressure chamber 36 formed on the other end surface of the small diameter needle 33, and the communication port 24 of the vibrating piston portion 2;
7, and a high-pressure alternating port 38 that constantly communicates the high-pressure annular groove 30 and the alternating pressure port 25 of the vibrating piston portion 2, and a high-pressure alternating port 38 that constantly communicates the low-pressure annular groove 31 with the discharge port 26 of the vibrating piston portion 2. a tank port 40 communicating with the low pressure annular groove 31 in which the oscillation spool 9 moves forward; and a high pressure port 41 communicating with the high pressure annular groove 30 in which the oscillation spool 9 moves backward; The hydraulic rammer according to claim 1, wherein the high pressure port 41 is connected to the discharge port 15 of the operating valve section 1, and the high pressure port 41 is connected to the communication port 24 of the vibrating piston section 2.