CN1459333A - Air and hydraulic mill - Google Patents
Air and hydraulic mill Download PDFInfo
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- CN1459333A CN1459333A CN 02120223 CN02120223A CN1459333A CN 1459333 A CN1459333 A CN 1459333A CN 02120223 CN02120223 CN 02120223 CN 02120223 A CN02120223 A CN 02120223A CN 1459333 A CN1459333 A CN 1459333A
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Abstract
A pneumatic-hydraulic crusher for breaking cement, rock or pan soil is composed of cylinder divided into 3 chambers, piston moving up and down in the cylinder and with two diameter-enlarged segments, compressable air chamber formed by piston in top part of cylinder, valve chamber outside the cylinder, and 4 fluid channels.
Description
Technical field
The present invention relates to a kind ofly be installed in the air and hydraulic mill that uses in the heavy-duty machine for carrying out cement fragmentation, catalase, pan soil fragmentation etc., more particularly relate to regulate easily flow and stream pressure, the air and hydraulic mill of the improvement structure that answer speed is fast.
Background of invention
In general, breaker is to act on intermittently above the piston by hydraulic pressure or Pneumatic pressure power, and the piston that moves up and down hits the chisel head within the specific limits, makes outstanding chisel leading portion outside touch broken object and carries out broken machine.
Existing breaker like this is, nitrogen injection in the gas compartment on piston, on the shifting axle below piston chisel is installed, make the chisel head touch described piston, its operation principle is, when flowing into high-pressure fluid in the cup that below piston, forms, described piston will compress the gas of filling in the gas compartment above it, and rise to peak, when arriving the piston peak, high-pressure fluid flows out by the valve ALT-CH alternate channel of cylinder middle part, and switching valve, makes the back chamber that forms on piston be transformed into high pressure one side.
Act on the high pressure of chamber, described back, elimination is acted on the high pressure of described cup, be compressed in nitrogen in the gas compartment thus, move down described piston by its expansive force, strike is positioned at the chisel head on the same axis, the broken object of pan soil such as the rock of broken described chisel leading portion, cement.
But aforesaid existing breaker has such shortcoming, promptly because the expansive force that produces by Compressed Gas hits, therefore for increasing hitting power, can only strengthen the volume of breaker, and strengthen the size and the capacity of relevant therewith peripheral annex.
And, behind the switching valve, for obtaining the piston necessary back indoor high pressure that descends, need be through the fluid passage in very complicated a plurality of stages, so structure is very complicated.
In recent years,, invented some and do not changed the outward appearance (size, weight, shape etc.) of breaker, hitting power that can obtain increasing and the breaker that carries out the valve conversion by the simple structure fluid passage for solving the result that above-mentioned shortcoming is made great efforts.
An example wherein, specially permit 1990-32045 number [air and hydraulic mill] record, the fluid of high pressure is provided in the groove that the outside forms below piston, compression is positioned at the gas that the gas compartment above the piston is filled, when its compression peaks, when high-pressure fluid becomes low pressure, high-pressure fluid moves in another groove that forms in the outside on piston, and pressurize, increasing the expansive force of described gas thus, its hitting power also doubles.
An other example, specially permit 1994-5811 number [utilizing the beating device of gas and hydraulic pressure] record, the unfavorable high-pressure fluid opening that is used in the formation of valve outside, and the path inlet that is connected through hole in the valve by the back chamber above the piston forms in the mode of direct switching, promptly, piston compression gas chamber, peak, by flowing into high-pressure fluid in the valve switch room that forms around the outside of axle and valve interior, this high-pressure fluid directly promotes the inside and outside described axle of valve, opens the through hole of valve, directly the back chamber above the piston is transformed into high pressure one side, improve the efficient of valve thus greatly, and improve hitting power.
But, in these examples because for outside and the sleeve outside integral body of columnar direction conversion with valve shaft, stream is pressed will produce excessive expansive force effect, can not its interaction of fine performance, answer speed is slow thus, the flow and the stream that are not easy adjustments of gas are pressed, and promptly do not overcome these shortcomings.
Summary of the invention
The objective of the invention is for solving the shortcoming of above-mentioned prior art, improved air and hydraulic mill is provided, it is characterized in that connecting the path inlet of the through hole of end spaces and valve cage on the back chamber on piston top, adopt direct switching mode, when regulating stream pressure and flow easily, answer speed is fast thus.
Above-mentioned purpose of the present invention is to finish by the air and hydraulic mill that following feature is provided: promptly by cylinder, be installed in piston moving up and down in the described cylinder, compressiblely be arranged on the gas compartment on cylinder top, optionally be connected with the part of described cylinder and for flowing into the air and hydraulic mill that valve chamber that hydraulic oil is arranged on the outside is formed by described piston; Wherein, by the 1st, 2 enlarged diameter portion that the length direction at described piston forms respectively by certain distance, the inner space of described cylinder is divided the Room the 1st, 2,3 that form successively from following to top; When described Room the 1st is connected with the input channel that high-pressure fluid is provided, optionally be connected with described valve chamber and the 4th fluid passage that forms; By the switching of described the 4th fluid passage, change the pressure state of described Room the 3rd, connect the 1st fluid passage that described valve chamber and Room the 3rd form; By the work of described piston, optionally connect the throttle orifice that forms in described cylinder portion outside of described Room the 1st and Room the 2nd and output channel.
The simple declaration of accompanying drawing
Fig. 1 represents the cut-away view of breaker of the present invention.
Fig. 2 represents the cross-sectional view of breaker valve chamber structure of the present invention.
The working state figure of Fig. 3 presentation graphs 2.
Fig. 4 and Fig. 5 represent the working state figure of breaker of the present invention.
The symbol description of major part in the accompanying drawing
10: cylinder 12,14,16: chamber 30: piston
32,24: enlarged diameter portion 42,44,46,48: section
50: valve chamber 70: input channel 76: output channel
100: import bolt 110: keyhole 120: bolt through hole
200: valve shaft 210,220,230: axle through hole 300: valve cage
The specific embodiment
Describe the present invention with reference to the accompanying drawings in detail.
Fig. 1 is the cross-sectional view of breaker of the present invention.
As shown in Figure 1, at the inner liftable piston (30) that inserts of the cylinder (10) that forms the breaker outward appearance, with have gas compartment (20) above the cylinder (10) that contacts above this piston (30), form valve chamber (50) in the outside of described cylinder (a 10) side, the incoming/outgoing that between described valve chamber (50) and cylinder (10), connects exhaust fluid, other covers (as cutter cover) are housed in below cylinder (10), and be provided with can with the chisel that contacts below (40) of described piston (30).
The inner space of cylinder (10) according to the vary in diameter of piston (30), is divided into Room the 1st, 2,3 (12,14,16) at its length direction.
Piston (30) has the 1st enlarged diameter portion (32) of enlarged diameter at position separated by a distance below it, keep original diameter again from described the 1st enlarged diameter portion (32) a distance, get back to the 2nd enlarged diameter portion (34) that has same diameter with described the 1st enlarged diameter portion (32) once more, till top, keep original diameter again from described the 2nd enlarged diameter portion (34).
Therefore, the inner space of described cylinder (10) is below it, by the following section of described the 1st enlarged diameter portion (32), i.e. the 1st section (42), form airtight Room the 1st (12), and go up section, i.e. the 2nd section (44) by described the 1st enlarged diameter portion (32), with section under the 2nd enlarged diameter portion (34), promptly the 3rd section (46) forms Room the 2nd (14), and the 4th section (48) of going up section by described the 2nd enlarged diameter portion (34) forms Room the 3rd (16).
In addition, the input channel that high-pressure fluid is provided (70) and the discharge that form in described cylinder (10) outside one side provide the output channel (76) of fluid parallel to each other, be arranged in the length direction of described cylinder (10), the part of input channel (70) is connected to valve chamber (50), is connected to described Room the 1st (12) and holder (accumulator) (60) below it.
Above-mentioned output channel (76) catches up with also that to state input channel (70) similar, and by different stroke mutually, the part of this output channel (76) is connected to valve chamber (50), is connected described second and third chamber (14,16) below it.
The temporary transient store fluid of described holder (accumulator) (60) is used as the work energy, therefore be formed on be connected with described valve chamber (50) following and.
Gas compartment (20) still is full of nitrogen.
Be connected the throttle orifice (78) that can be connected below the described output channel (76) with described Room the 2nd (14).
Fig. 2 is the state that is provided with of valve chamber of the present invention (50), and columnar importing bolt (100) is set in described valve chamber (50), and valve shaft (200) is inserted in the outside of described importing bolt (100), and insert and standing valve sleeve (300) outside of described valve shaft (200).
One side of described importing bolt (100) is open, and its open side and the 1st fluid passage (310) interconnect.
Described the 1st fluid passage (310) is connected Room the 3rd (16) through the outside of described valve cage (300).
In addition, in the outside of described importing bolt (100), isolate formation keyhole (110) and bolt through hole (120) successively by certain distance from described open end one side.
Described valve shaft (200) is inserted in the outside of described importing bolt (100), is arranged to along its length slidably, and its length is slightly less than the length of described importing bolt (100).
Desirable is that fluid space slightly is wider than the width through the 2nd fluid passage (320) that is connected output channel (76) of described valve cage (300) outside.
Described fluid space is as the 1st pressurization space (440), and its rightabout space shown in Figure 3 described later is the 2nd pressurization space (450).
In addition, described valve shaft (200) outside forms axle the 1st along its length successively, 2,3 through holes (210,220,230),, can optionally connect keyhole (110) and axle the 2nd through hole (220) and bolt through hole (120) and axle the 3rd through hole (230) mutually according to mobility.
Fixing described valve shaft (200) also around valve cage (300) outside of described importing bolt (100) outside, forms the 1st, 2,3,4 of perforation valve cage, 5,6 fluid passages (310,320,330,340,350,360) at length direction.
The course of work of the present invention with above-mentioned composition is as follows:
Fig. 3 represents the cross-sectional view of valve chamber active state of the present invention.Fig. 4 and Fig. 5 represent the up-stroke of piston of breaker of the present invention and the cross-sectional view of descending stroke respectively.
When Fig. 2 to Fig. 5 represented to supply with high-pressure fluid by input channel (70) at first, part moved to valve chamber (50) by the 4th fluid passage (340) in the described fluid, and remaining part is injected into Room the 1st (12) below input channel (70).
At this moment, the state of described valve chamber (50), as shown in Figure 2, the back of valve shaft (200) is occupied the 2nd pressurization space (450) fully, the 1st pressurization space (440) is connected with the 2nd fluid passage (320), keyhole (110) is connected the 3rd fluid passage (330) by axle the 1st through hole (210), and other are in closed state.
Therefore, the fluid that offers the 4th fluid passage (340) can not continue to flow, and to the pressurization of the 2nd through hole (220) sidewall of valve shaft (200), most of fluid is supplied with Room the 1st (12), and the 1st section (42) of the 1st enlarged diameter portion (32) is added high pressure.
At this moment, the fluid part of supply is stored in holder (60).
Simultaneously, be connected the 1st fluid passage (310) of Room the 3rd (16), by importing bolt (100) inside, by keyhole (110) and axle the 1st through hole (210) and the 3rd fluid passage (330), connect output channel (76), and discharge, therefore described Room the 3rd (16) can keep very low pressure in relative Room the 1st (12).
Like this, when the pressure of Room the 3rd (16) reduced, the fluid high-pressure that acts on the 1st section (42) made described piston (30) beginning upward stroke.
In addition, in valve chamber (50), be provided with the slidably valve shaft (200) that pressurizes, as shown in Figure 3, move to the 1st pressurization space (440) one sides that keep relatively low pressure than the 2nd pressurization space (450).
When described piston (30) is mobile, gas compartment (20) compression, usually the 5th fluid passage (350) that is interconnected and connecting pipe (370) are cut off by the 1st enlarged diameter portion (32), Room the 1st (12) broadens, Room the 3rd (16) narrows down, and a high-pressure fluid part that supplies to Room the 1st (12) thus is discharged to output channel (76) by throttle orifice (78).
By these processes, when the upward stroke of piston (30) culminates,, convert the descending stroke of piston (30) to as Fig. 3 and shown in Figure 5.
This be because, when interior the nitrogen pressure of gas compartment (30) was reduced to minimum state, moment converted Room the 3rd (16) to and is high pressure, Room the 1st (12) are low pressure.
That is, by throttle orifice (78), fluid is discharged to output channel (76), removes the high pressure conditions that is added in Room the 1st (12) thus.
On the contrary, effect along with the valve shaft (200) of valve chamber (50), keyhole (110) and axle the 2nd through hole (220), and bolt through hole (120) and the axle the 3rd through hole (230) interconnect, high-pressure fluid from input channel (70) supply, by the 4th fluid passage (340), through keyhole (110) and axle the 2nd through hole (220), major part supplies to Room the 3rd (16), the high pressure moment that is added in Room the 3rd (16) is pressurized to the 4th section (48), the elastic force reduction is returned in the compression of gas compartment (20) thus, and piston (30) descends rapidly.
During descending stroke, by the bolt through hole (120) of valve chamber (50) and the part high-pressure fluid of axle the 3rd through hole (230) and the 5th fluid passage (350) supply, after supplying to Room the 2nd (14), be discharged to output channel (76) along connecting pipe (370), be pressurized to the 2nd section (44), piston (30) is to descend more at a high speed thus.
The transfer process of described valve and the rising of cylinder and descending stroke, moment causes the pressure conversion in the very short time, it is very big therefore to go up the strength of hitting at chisel (40).
Particularly, by regulating the bore and the length of a plurality of through holes of valve chamber (50), regulate the flow and the stream of high-pressure fluid easily and press.
Carry out said process repeatedly, can implement the crushing operation of materials such as rock, pan soil, cement.The effect of invention
As mentioned above, the invention provides following effect:
The first, keyhole and axle the 2nd through hole form throttle orifice as the main fluid pipeline, can provide The effect that responsiveness is fast.
The second, have the advantage of easy adjusting stream pressure and flow.
The 3rd, utilize stream to press and gas, the conversion piston greatly improves force de frappe.
Claims (4)
1, air and hydraulic mill, the valve chamber (50) that it is characterized in that by cylinder (10), be installed in piston moving up and down (30) in the described cylinder (10), is formed on gas compartment (20) above the cylinder (10) compressiblely, optionally is connected with the part of described cylinder (10) and is arranged on the outside for the highly pressurised liquid inflow by this piston (30) is formed; Comprising, by the 1st, 2 enlarged diameter portion (32,34) that the length direction along described piston (30) forms respectively by certain distance, the inner space of described cylinder (10) is divided the Room the 1st, 2,3 (12,14,16) that form successively from following to top; Described Room the 1st (12) and the input channel that high-pressure fluid is provided (70) be when being connected, the 4th fluid passage (340) that optionally is connected to form with described valve chamber (50); By the switching of described the 4th fluid passage (340), change the pressure state of described Room the 3rd (16), connect the 1st fluid passage (310) that described valve chamber (50) and Room the 3rd (16) form; By the work of described piston (30), optionally connect described Room the 1st (12) and Room the 2nd (14) and output channel (76), the throttle orifice (78) that forms in described cylinder (10) part outside.
2, as claim 1 described air and hydraulic mill, it is characterized in that comprising that a side of described valve chamber (50) is open, the cylindrical shape that forms keyhole (110) and bolt through hole (120) at its length direction imports bolt (100); Insert slidably, have the valve shaft (200) of the through hole (210,220,230) of the axle the 1st, 2,3 that optionally connects described keyhole (110) and bolt through hole (120) in described importing bolt (100) outside; Around described valve shaft (200) and be fixed on described importing bolt (100) go up and optionally open and close described axle the 1st, 2,3 through hole (210,220,230) the 1st, 2,3,4,5,6 fluid passages (310,320,330,340,350,360) valve cage (300).
3, as claim 2 described air and hydraulic mills, it is more mobile than coming and going on wide the 1st, 2 pressurization space (440,450) of described the 2nd fluid passage (320) to it is characterized in that described valve shaft (200) is arranged on.
4, claim 1 or 2 described air and hydraulic mills, it is characterized in that described valve shaft (200) is arranged to, when piston (30) rises, seal being connected of described keyhole (110) and the 4th fluid passage (340), connect described keyhole (110) and the 3rd fluid passage (330) simultaneously; And when piston (30) descends, connect described keyhole (110) and the 4th fluid passage (340), seal being connected of described keyhole (110) and the 3rd fluid passage (330) simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120223 CN1219601C (en) | 2002-05-20 | 2002-05-20 | Air and hydraulic mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02120223 CN1219601C (en) | 2002-05-20 | 2002-05-20 | Air and hydraulic mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1459333A true CN1459333A (en) | 2003-12-03 |
| CN1219601C CN1219601C (en) | 2005-09-21 |
Family
ID=29426960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02120223 Expired - Fee Related CN1219601C (en) | 2002-05-20 | 2002-05-20 | Air and hydraulic mill |
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| Country | Link |
|---|---|
| CN (1) | CN1219601C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452158A (en) * | 2012-05-30 | 2013-12-18 | 株式会社水山重工业 | Cylinder hydraulic loss preventing device of hydraulic breaker |
| CN103894980A (en) * | 2012-12-24 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Electric impacting tool |
| CN110892115A (en) * | 2017-07-24 | 2020-03-17 | 株式会社水山重工业 | Hydraulic striking device |
| CN111699076A (en) * | 2018-02-14 | 2020-09-22 | 蒙塔博特公司 | Method for adjusting the impact stroke of an impact piston of a percussion device and percussion device for implementing said method |
-
2002
- 2002-05-20 CN CN 02120223 patent/CN1219601C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452158A (en) * | 2012-05-30 | 2013-12-18 | 株式会社水山重工业 | Cylinder hydraulic loss preventing device of hydraulic breaker |
| CN103894980A (en) * | 2012-12-24 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Electric impacting tool |
| CN103894980B (en) * | 2012-12-24 | 2016-03-16 | 苏州宝时得电动工具有限公司 | Electric impac tool |
| CN110892115A (en) * | 2017-07-24 | 2020-03-17 | 株式会社水山重工业 | Hydraulic striking device |
| CN110892115B (en) * | 2017-07-24 | 2021-12-17 | 株式会社水山重工业 | Hydraulic striking device |
| CN111699076A (en) * | 2018-02-14 | 2020-09-22 | 蒙塔博特公司 | Method for adjusting the impact stroke of an impact piston of a percussion device and percussion device for implementing said method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1219601C (en) | 2005-09-21 |
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