CN101254519A - Lower ram micromotion full-hydraulic counterblow hammer - Google Patents
Lower ram micromotion full-hydraulic counterblow hammer Download PDFInfo
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- CN101254519A CN101254519A CNA2007100204704A CN200710020470A CN101254519A CN 101254519 A CN101254519 A CN 101254519A CN A2007100204704 A CNA2007100204704 A CN A2007100204704A CN 200710020470 A CN200710020470 A CN 200710020470A CN 101254519 A CN101254519 A CN 101254519A
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Abstract
The invention discloses a full hydraulic counterblow hammer with a micro-displacement lower hammer head, which comprises a lower hammer head, an upper hammer head, a die holder, a die and a program-controlled full hydraulic power head. The invention is characterized in that balancing hydraulic cylinders are arranged at two bottom sides of the lower hammer head to achieve the micro-displacement of the lower hammer head, and the program-controlled full hydraulic power head drives the upper hammer head to move. The upper and the lower hammer heads hit to each other in a way of non-uniform velocity and unequal travel based on full hydraulic drive and hydraulic linkage. Both the movement velocity and travel of the lower hammer head are smaller than those of the upper hammer head. The counterblow hammer has the advantages of micro-displacement of the lower hammer head, full hydraulic drive, automatic control of hydraulic linkage and high reliability.
Description
Technical field
The present invention relates to the machining equipment of metal forming, specifically the hammer in the forging equipment is to utilize full hydraulic drive, fluid pressure linkage to realize Lower Harmmer Jiggle Hydraulic Counterblow Hammer.
Background technology
Domestic existing hammer is the gas-powered counter-blow hammer from drive principle, promptly utilize the expansion driven upper ram of gas to drive the lower ram move toward one another by mechanical linkage, realization is to hitting, and the counter-blow hammer of this form is difficult to realize the automation control of blow energy because the gas controllability is relatively poor; Be mechanical linkage from last lower ram interlock mode, last lower ram homenergic, constant speed are to hitting, because the hammering frequency is higher, the mechanical linkage reliability is relatively poor; From last lower ram movement velocity, movement travel, for constant speed, etc. stroke to hitting because the lower ram movement velocity is very fast, stroke is bigger, is not easy to operation.
Summary of the invention
The purpose of this invention is to provide a kind of Lower Harmmer Jiggle Hydraulic Counterblow Hammer of can be programme controlled and realizing by full hydraulic drive, fluid pressure linkage.
Technical solution of the present invention is: a kind of Lower Harmmer Jiggle Hydraulic Counterblow Hammer, comprise lower ram, upper ram, die holder, mould, program control type all-hydraulic power head, difference is, above-mentioned lower ram two bottom sides is equipped with balance hydraulic cylinder, realize the lower ram fine motion, the program control type all-hydraulic power head drives the upper ram motion.
Above-mentioned lower ram is a U-shaped integral body, and upper ram leads between lower ram.
Above-mentioned lower ram quality is much larger than the upper ram quality.
Above-mentioned program control type all-hydraulic power head comprises working cylinder, fuel tank, integrated package, strike control valve, accumulator, oil pump, working cylinder, strike control valve are connected with fuel tank by integrated package, hammer stem is housed in the working cylinder, the hammer stem lower end is connected with upper ram, integrated package is installed on the fuel tank, and above-mentioned control valve is connected by two balance hydraulic cylinders of pipeline with the lower ram bottom.
Above-mentioned upper ram one side is equipped with pneumatic safety pin, and flexible by control valve control safety pin, the realization upper ram moves or stops.
Be equipped with special service valve between the accumulator of above-mentioned program control type all-hydraulic power head and the oil pump, above-mentioned special service valve is realized the oil-filled and off-load of oil pump to accumulator automatically.
The present invention compared with prior art has following advantage:
This counter-blow hammer adopts the program control type full hydraulic drive, and the transmission efficiency height is convenient to the automatic control of blow energy, and full hydraulic drive can make lower ram be quickened and gather huge kinetic energy within a short period of time, is convenient to high frequency time and forges continuously; This counter-blow hammer adopts U-shaped lower ram structure, and upper ram is guiding movement in lower ram, and the precision of percussion system, rigidity, security will be higher than the no anvil hammer of tradition; Last lower ram adopts fluid pressure linkage will thoroughly avoid the fatigue damage of mechanical linkage.
Description of drawings
Fig. 1 is the structural representation of Lower Harmmer Jiggle Hydraulic Counterblow Hammer of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing Lower Harmmer Jiggle Hydraulic Counterblow Hammer of the present invention is described further.
As shown in Figure 1, a kind of Lower Harmmer Jiggle Hydraulic Counterblow Hammer, comprise lower ram 1, upper ram 2, die holder 3, mould 4, program control type all-hydraulic power head 5, difference is, above-mentioned lower ram 1 two bottom sides is equipped with balance hydraulic cylinder 11, realize lower ram 1 fine motion, program control type all-hydraulic power head 5 drives upper ram 2 motions; Above-mentioned lower ram 1 is a U-shaped integral body, and upper ram 2 is in 1 guiding of lower ram; Above-mentioned lower ram 1 quality is much larger than upper ram 2 quality.
Above-mentioned program control type all-hydraulic power head 5 comprises working cylinder 51, fuel tank 52, integrated package 53, hits control valve 54, accumulator 55, oil pump 56, working cylinder 51, strike control valve 54 are connected with fuel tank 52 by integrated package 53, hammer stem 511 is housed in the working cylinder 51, hammer stem 511 lower ends are connected with upper ram 2, integrated package 53 is installed on the fuel tank 52, and above-mentioned strike control valve 54 is connected with two balance hydraulic cylinders 11 of lower ram 1 bottom by pipeline.
Above-mentioned upper ram 2 one sides are equipped with pneumatic safety pin 21, and flexible by control valve 22 control safety pins 21, realization upper ram 2 moves or stops.
During work, accumulator 55 is oil-filled when reaching certain pressure, and upper ram 2 is back to the upper limit, is in the strike state of waiting for, this moment control valve 22 be in electricity condition, safety pin 21 is in extended position, pins upper ram 2 and prevents that mistake from hitting; Control valve 22 dead electricity, after safety pin 21 withdraws from, hitting control valve 54 gets, oil pump 56 actions, rod chamber pressure oil in pressure oil in the accumulator 55 and the working cylinder 51 is entered rodless cavity and two balance hydraulic cylinders 11 in the working cylinder 51 simultaneously, thereby drive upper ram 2, lower ram 1 move toward one another, until forming to hitting.
During backhaul, hit control valve 54 dead electricity, the rodless cavity of working cylinder 51, balance hydraulic cylinder 11 by conduit under fluid pressure and integrated package 53, hit control valve 54 oil returns, upper ram 2 is got back to the upper limit under working cylinder 51 rod chamber pressure oil effects, lower ram 1 is got back to lower limit under the deadweight effect.
When still not hitting above certain hour, control valve 22 is electricly automatic, and safety pin 21 stretches out, and upper ram 2 is lockable.
Because lower ram 1 quality is much larger than the quality of upper ram 2, and proportional, balance hydraulic cylinder 11 is also proportional with the rodless cavity area of working cylinder 51, thereby lower ram 1 movement velocity is much smaller than upper ram 2 speed, thereby realizes lower ram 1 fine motion.
Can realize the automatic control of blow energy by the opening time of hitting control valve 54.
Present embodiment is equipped with hydraulic means is realized 56 pairs of accumulators 55 of oil pump automatically by special service valve 57 oil-filled and off-load when practical application.
Claims (6)
1. Lower Harmmer Jiggle Hydraulic Counterblow Hammer, comprise lower ram, upper ram, die holder, mould, program control type all-hydraulic power head, it is characterized in that: above-mentioned lower ram two bottom sides is equipped with balance hydraulic cylinder, realizes the lower ram fine motion, and the program control type all-hydraulic power head drives the upper ram motion.
2. Lower Harmmer Jiggle Hydraulic Counterblow Hammer according to claim 1 is characterized in that: above-mentioned lower ram is a U-shaped integral body, and upper ram leads between lower ram.
3. Lower Harmmer Jiggle Hydraulic Counterblow Hammer according to claim 1 is characterized in that: above-mentioned lower ram quality is much larger than the upper ram quality.
4. Lower Harmmer Jiggle Hydraulic Counterblow Hammer according to claim 1, it is characterized in that: above-mentioned program control type all-hydraulic power head comprises working cylinder, fuel tank, integrated package, strike control valve, accumulator, oil pump, working cylinder, strike control valve are connected with fuel tank by integrated package, hammer stem is housed in the working cylinder, the hammer stem lower end is connected with upper ram, integrated package is installed on the fuel tank, and above-mentioned control valve is connected by two balance hydraulic cylinders of pipeline with the lower ram bottom.
5. Lower Harmmer Jiggle Hydraulic Counterblow Hammer according to claim 1 is characterized in that: above-mentioned upper ram one side is equipped with pneumatic safety pin.
6. Lower Harmmer Jiggle Hydraulic Counterblow Hammer according to claim 1 is characterized in that: be equipped with special service valve between the accumulator of above-mentioned program control type all-hydraulic power head and the oil pump, above-mentioned special service valve is realized the oil-filled and off-load of oil pump to accumulator automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100204704A CN101254519A (en) | 2007-03-02 | 2007-03-02 | Lower ram micromotion full-hydraulic counterblow hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100204704A CN101254519A (en) | 2007-03-02 | 2007-03-02 | Lower ram micromotion full-hydraulic counterblow hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101254519A true CN101254519A (en) | 2008-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100204704A Pending CN101254519A (en) | 2007-03-02 | 2007-03-02 | Lower ram micromotion full-hydraulic counterblow hammer |
Country Status (1)
| Country | Link |
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| CN (1) | CN101254519A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371325A (en) * | 2011-11-10 | 2012-03-14 | 王佐栋 | Power transmission system for accumulator of oil pump of large-sized/middle-sized forging oil press |
| CN102794379A (en) * | 2012-07-16 | 2012-11-28 | 胡大勇 | Fully-hydraulic counter-blow hammer |
| CN105234662A (en) * | 2015-11-02 | 2016-01-13 | 攀钢集团矿业有限公司 | Gravity striking device used for installing crusher liner plate |
| CN106111868A (en) * | 2016-06-17 | 2016-11-16 | 陈加奎 | A kind of novel hydraulic linkage counter-blow hammer of improvement |
-
2007
- 2007-03-02 CN CNA2007100204704A patent/CN101254519A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371325A (en) * | 2011-11-10 | 2012-03-14 | 王佐栋 | Power transmission system for accumulator of oil pump of large-sized/middle-sized forging oil press |
| CN102371325B (en) * | 2011-11-10 | 2016-03-23 | 王佐栋 | A kind of oil pump accumulator dynamic transfer system of large and medium-sized forge oil press |
| CN102794379A (en) * | 2012-07-16 | 2012-11-28 | 胡大勇 | Fully-hydraulic counter-blow hammer |
| CN105234662A (en) * | 2015-11-02 | 2016-01-13 | 攀钢集团矿业有限公司 | Gravity striking device used for installing crusher liner plate |
| CN106111868A (en) * | 2016-06-17 | 2016-11-16 | 陈加奎 | A kind of novel hydraulic linkage counter-blow hammer of improvement |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080903 |