CN201579490U - Hydraulic pressure chain saw - Google Patents
Hydraulic pressure chain saw Download PDFInfo
- Publication number
- CN201579490U CN201579490U CN2009202284055U CN200920228405U CN201579490U CN 201579490 U CN201579490 U CN 201579490U CN 2009202284055 U CN2009202284055 U CN 2009202284055U CN 200920228405 U CN200920228405 U CN 200920228405U CN 201579490 U CN201579490 U CN 201579490U
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- China
- Prior art keywords
- switch valve
- chain saw
- seawater
- switch
- hydraulic motor
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- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic pressure chain saw. A handle is connected with a switch valve; the side surface of the switch valve is provided with a trigger; the switch valve is connected with a water inlet passage of a seawater or fresh water hydraulic motor; a water outlet passage of the seawater or fresh water hydraulic motor is led to a working chain saw; an output shaft of the seawater or fresh water hydraulic motor is connected with a transmission gear; and the transmission gear is connected with the working chain saw. In order to realize the reliable sealing to the low-viscosity seawater medium, the switch valve is designed into a sealing form that a valve core is linearly contacted with a valve seat; and simultaneously, the hydraulic force balance treatment is carried out to the valve core so as to reduce the operation force of the switch valve. The hydraulic pressure chain saw directly takes seawater or fresh water as the working medium, has the characteristics of environment protection, high reliability, large operation depth, simple operation and convenient maintenance, and can be safely and reliably used for cutting concretes, reinforced concretes, pipelines, bricks and stones under water.
Description
Technical field
The utility model relates to underwater operation tool, relates in particular to a kind of hydraulic chain saw.
Background technology
Existing chain saw can be divided into electronic, gasoline, pneumatic chain saw and hydraulic pressure chain saw according to the difference of type of drive.
Electronic and gasoline chain saw is that power drives saw blade rotating operation in orbit with motor or gasoline engine, mostly is light-duty chain saw, is used for the sawing, gardens beta pruning of timber etc.Gasoline chain saw can not be used for underwater operation because not only can pollute to environment, though and can because under water oxygen can't and can't work.Electric tool can be worked under the various depth of waters, but requires the electric part in the motor to isolate fully seawater, needs complicated electrical insulation system, complex structure, therefore than heavy several times of corresponding hydraulic tool, also big several times of volumes use very inconvenient under water.Will prevent that in addition the diver from being hurt by electric leakage, system reliability and security are relatively poor.
Pneumatic chain saw drives with compressed air, adopts open system, directly discharging under water behind the compressed air to do work, and the bubble of emitting can influence diver's sight line, even can cause diver's nausea and vomiting.In addition, seawater enters pneumatic element, and the reliability of instrument and life-span are reduced greatly, therefore needs frequent maintenance.In addition, along with the increase of diving depth, the pressure of the balance depth of water is also along with increase, and air consumption increases severely, and energy consumption increases, and the efficient of instrument sharply reduces, and the volume of equipment, weight also sharply increase thereupon; The control of power source pressure is very complicated, because for guaranteeing that instrument carries out effective operation, the output pressure of power source needs along with the difference of depth of implements is adjusted accordingly.In the power tool, mostly pneumatic tool is volume, weight maximum under water, and efficient is minimum.Therefore, pneumatic tool generally only uses with shallow zone 50 meters depth of waters.
Hydraulic tool is compared with electronic and pneumatic tool, long service life, and dependable performance, evenly speed governing does not need deceleration device, has advantages such as weight per unit power is light, volume is little, power output is big, output is steady.Traditional hydraulic pressure chain saw instrument all with mineral type hydraulic oil as working media because mineral type hydraulic oil is incompatible with water, system must be designed to closed circulation system, thereby the drawback that exists some to be difficult to overcome.Mainly show as:
(1) hydraulic oil and water seepage mutually inevitably, this is contaminated environment not only, has also quickened system element ground and has damaged, and reduces tool reliability and service life greatly;
(2) because of hydraulic oil ground viscosity is big, and its sticking warm, sticking pressure coefficient is big, along with depth of implements and scope ground enlarge, and system's oil-feed and the increase of oil return pipe ground linear loss; Need the balance water depth pressure simultaneously, make the efficient of oil pressure instrument reduce greatly.In addition, for guaranteeing effective driving power, need to adjust along with the increase of depth of implements the output pressure of power source, pressure control is very inconvenient.Although can adopt pressure compensated method to solve back one problem, the volume of equipment, weight and complexity increase, manufacturing and difficult in maintenance;
(3) operation in wave, ocean current, undercurrent or deepwater environment, the oil-feed and the oil return pipe that are connected on the instrument are subjected to very big active force, the difficulty when having increased diver's operation; When using on land, also need to increase an independent water pipe chain is cooled off.
(4) be difficult to change under water power tool and simply keep in repair.
The utility model content
The purpose of this utility model is to provide a kind of hydraulic chain saw, is working media with seawater or fresh water directly, has that environmental protection, reliability height, operational depth are big, the characteristics of simple, convenient maintenance.
Hydraulic chain saw, comprise handle 1.2, switch valve 1.4, trigger 1.9, seawater or fresh water hydraulic motor 1.3, travelling gear 1.7 and work chain saw, handle 1.2 connects switch valve 1.4, the side of switch valve 1.4 is provided with trigger 1.9, switch valve 1.4 connects the intake tunnel of seawater or fresh water hydraulic motor 1.3, the exhalant canal of seawater or fresh water hydraulic motor 1.3 is guided the work chain saw into, and the output shaft of seawater or fresh water hydraulic motor 1.3 connects travelling gear 1.7, and travelling gear 1.7 connects the work chain saw.
Technique effect of the present utility model is embodied in: the utility model hydraulic chain saw directly carries out operation with seawater or fresh water as working media, Environmental compatibility is good, therefore be designed to open system, directly from the underwater operation environment, absorb water, after the pressurization acting, directly flow back in the water environment again, need not to carry water tank, without cooler and return pipe, backwater directly sprays body to chain, chain is played cooling effect, simplify system, reduced volume, reduced weight, power source need not to increase pressure compensator when placing under water, depth of implements is unrestricted; Because the ratio of viscosities hydraulic oil of seawater is little, the pressure loss is much smaller, further increases depth of implements simultaneously.The utility model hydraulic chain saw adopts the sea water hydraulic motor in the ocean, adopt the fresh water hydraulic motor in the fresh water environments such as lake, and can be safe and reliable be used for cut concrete, armored concrete, pipeline, brick material and stone material under water.
Description of drawings
Fig. 1 is the utility model embodiment overall structure schematic diagram;
Fig. 2 is an embodiment switch valve structural representation;
Fig. 3 is the tensioning device structure schematic diagram of embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 provides sea water hydraulic chain saw overall structure schematic diagram, and hydraulic quick coupler 1.1 is connected with handle 1.2, and handle 1.2 links to each other with switch valve 1.4, and switch valve 1.4 sides are provided with trigger 1.9.Switch valve 1.4 links to each other with sea water hydraulic motor 1.3, and housing 1.8 is fixed on the sea water hydraulic motor 1.3, and carrier bar 1.5 is installed on the housing 1.8, and chain 1.6 is installed on the carrier bar.Handle 1.2 is a hollow-core construction, and handle 1.2 connects power source by hydraulic quick coupler 1.1, and seawater enters switch valve 1.4 through the hollow-core construction of handle 1.2.
Fig. 2 is the switch valve structural representation, mainly plays switch control.Switch spool 2.6 is housed in the valve piece 2.1, and switch spool 2.6 can adopt forms such as ball valve, cone valve and flap type.Adopt rotatable steel ball 2.6 among the embodiment, the left side of steel ball 2.6 is equipped with spring fairlead 2.4 in valve piece 2.1, be processed with into water intermediate flow channel in the sidewall of spring fairlead 2.4, inside at the export-oriented cover 2.4 of spring is provided with spring push-rod 2.5 and back-moving spring 2.3, one end in contact steel ball 2.6 of spring push-rod, the other end connects back-moving spring 2.3.Left side near the export-oriented cover 2.4 of spring is equipped with valve end cap 2.2.Also have intake tunnel in the valve piece 2.1, the export-oriented cover 2.4 water inlet intermediate flow channel of intake tunnel and spring are connected, and the water inlet intermediate flow channel is by in switch valve port place.The right side of steel ball 2.6 is equipped with switch valve seat 2.8 in valve piece 2.1, pushing rod sleeve 2.9 is equipped with on the right side of switch valve seat 2.8, the inside of pushing rod sleeve 2.9 and switch valve seat 2.8 is provided with push rod 2.7, one end in contact steel ball 2.6 of push rod 2.7, the other end stretches out pushing rod sleeve 2.9 and joins with connector 2.10, and connector 2.10 is used to connect trigger 1.9.Steel ball 2.6 is the switch valve port with the contact position of switch valve seat 2.8.Be processed with the water outlet intermediate flow channel on the switch valve seat 2.8.Have exhalant canal in the valve piece 2.1, it is connected with the water outlet intermediate flow channel of switch valve seat 2.8.Press trigger 1.9, promote push rod 2.7, push rod 2.7 promote steel balls 2.6 to the left of valve piece 2.1 to moving, the switch valve port is opened, the water of water inlet intermediate flow channel enters the water outlet intermediate flow channel, exhalant canal enters the sea water hydraulic motor, drives 1.3 work of sea water hydraulic motor; Unclamp trigger 1.9, under the effect of back-moving spring 2.3, steel ball 2.6, connecting rod 2.9 reset, and the switch valve port is closed, and stops CD-ROM drive motor.
For realizing switch valve positiver sealing under high pressure, on the export-oriented cover 2.4 of spring, be processed with flowing hole, it is connected with the export-oriented intermediate flow channel of overlapping on 2.4 of spring, direct high pressure water flows in the left hemisphere face and the cavity between the export-oriented cover 2.4 of spring of steel ball 2.6, is applied with hydraulic coupling to the right on the left hemisphere face of water under high pressure to steel ball 2.6.When the switch valve port is closed, because the contact area of left hemisphere face and water under high pressure is greater than right hemisphere face, therefore to the right hydraulic coupling greater than the suffered hydraulic coupling left of second half sphere, and when water under high pressure pressure is high more, difference with hydraulic coupling left is big more to the right for this, steel ball 2.6 is big more with switch valve seat 2.8 contact stress, realizes positiver sealing; After the switch valve port was opened, steel ball 2.6 two halves sphere compression areas equated that the fluid pressure balance of all directions at this moment, be held open state, only need act on pressure and the suffered hydraulic coupling of push rod that trigger 1.9 less motive forces are removed balance back-moving spring 2.3.Because the effect of hydraulic coupling has to the right realized the positiver sealing of switch valve port, but makes that required motive force is very big when opening, and relax this contradiction, then need design a hydraulic coupling left, offsets part hydraulic coupling to the right.Therefore, the utility model is introduced cavity between push rod 2.7 and the pushing rod sleeve 2.9 with water under high pressure, in order to introduce water under high pressure, on switch valve piece 2.1, be processed with runner in addition, the one end communicates with intake tunnel, the other end is communicated with the cavity between push rod 2.7 and the pushing rod sleeve 2.1, and the water under high pressure that enters this cavity acts on hydraulic coupling left on push rod 2.7, only needs the balance hydraulic coupling and the pressure of the difference between the hydraulic coupling and back-moving spring 2.3 left to the right during unlatching.
Switch valve 1.4 connects the intake tunnel of sea water hydraulic motor 1.3, and the exhalant canal of sea water hydraulic motor 1.3 is guided the work chain saw into, and the output shaft of seawater or fresh water hydraulic motor 1.3 connects travelling gear 1.7, and travelling gear 1.7 connects the work chain saw
The work chain saw comprises chain 1.6, is used for the carrier bar 1.5 of support chains, the fixedly housing 1.8 and the chain tensioning mechanism of carrier bar.Housing 1.8 is installed on the sea water hydraulic motor, and housing is used for fixing carrier bar 1.5, and chain 1.6 is enclosed within on the carrier bar 1.5.Have three holes on the carrier bar 1.5, wherein two holes are used for the fixing of carrier bar and housing 1.8, and the 3rd hole is used to install chain 1.6 strainers.As shown in Figure 3, chain 1.6 strainers are made of sliding shoe 3.2, cylinder 3.1 and adjustment screw 3.3.Have gathering sill in the housing, be provided with sliding shoe 3.2 in the gathering sill, cylinder 3.1 is fixed on the sliding shoe 3.2, and chain 1.6 is close in the side of cylinder 3.1, and cylinder 3.1 is with sliding shoe 3.2 motions.Also be inserted with adjustment screw 3.3 in the sliding shoe 3.2, adjustment screw 3.3 axially consistent with the gathering sill direction.Adjustment screw 3.3 axially is directed to the groove location, but circumferencial direction can rotate freely.Because sliding shoe 3.2 be square, can not be with adjustment screw 3.3 rotations, thereby sliding shoe 3.2 can move along gathering sill under the driving of adjustment screw 3.3, and cylinder 3.1 also moves along gathering sill thereupon, and realization is to the tensioning of chain 1.6.
Operation principle of the present utility model is: water under high pressure is introduced from hydraulic quick coupler 1.1, arrive switch valve 1.4 imports, when pressing trigger 1.9, trigger 1.9 acts on connector 2.10, and when pushing steel ball 2.6 open by push rod 2.7, the switch valve port is opened, water enters the entrance point of hydraulic motor 1.3 through exhalant canal, water drives hydraulic motor 1.3 rotations, and sea water hydraulic motor 1.3 drives chain 1.6 by travelling gear 1.7 and rotates, and carries out cutting.The hydraulic motor backwater causes chain 1.6 tops and is used to cool off chain.
Sea water hydraulic motor 1.3 also can be changed to the fresh water hydraulic motor, still at the characteristics of seawater severe corrosive, and preferred sea water hydraulic motor 1.3, other parts all adopt corrosion resistant alloy or high performance engineering plastics.
Claims (4)
1. hydraulic chain saw, comprise handle (1.2), switch valve (1.4), trigger (1.9), seawater or fresh water hydraulic motor (1.3), travelling gear (1.7) and work chain saw, handle (1.2) connects switch valve (1.4), the side of switch valve (1.4) is provided with trigger (1.9), switch valve (1.4) connects the intake tunnel of seawater or fresh water hydraulic motor (1.3), the exhalant canal of seawater or fresh water hydraulic motor (1.3) is guided the work chain saw into, the output shaft of seawater or fresh water hydraulic motor (1.3) connects travelling gear (1.7), and travelling gear (1.7) connects the work chain saw.
2. hydraulic chain saw according to claim 1, it is characterized in that, described switch valve (1.4) comprises valve piece (2.1), switch spool (2.6) is housed in the valve piece (2.1), the left side of switch spool (2.6) is equipped with spring fairlead (2.4), be provided with spring push-rod (2.5) and back-moving spring (2.3) in the inside of spring fairlead (2.4), one end in contact switch spool (2.6) of spring push-rod, the other end connects back-moving spring (2.3), near the left side of spring fairlead (2.4) valve end cap (2.2) is installed; The right side of switch spool (2.6) is equipped with switch valve seat (2.8) in valve piece (2.1), pushing rod sleeve (2.9) is equipped with on the right side of switch valve seat (2.8), the inside of pushing rod sleeve (2.9) and switch valve seat (2.8) is provided with push rod (2.7), one end in contact switch spool (2.6) of push rod (2.7), the other end stretches out pushing rod sleeve (2.9) and joins with connector (2.10), and connector (2.10) is used to connect trigger (1.9); Switch spool (2.6) is the switch valve port with the contact position of switch valve seat (2.8); The valve piece has intake tunnel and exhalant canal in (2.1), is processed with into water intermediate flow channel in the sidewall of spring fairlead (2.4), and the switch valve seat is processed with the water outlet intermediate flow channel on (2.8); Intake tunnel is connected with the water inlet intermediate flow channel, and the water inlet intermediate flow channel is by in switch valve port place, and water outlet intermediate flow channel one end originates in the switch valve port, and the other end is communicated with exhalant canal.
3. hydraulic chain saw according to claim 2 is characterized in that, is processed with flowing hole on spring fairlead (2.4), and flowing hole one end is communicated with water inlet intermediate flow channel, the cavity between other end coupling cock spool (2.6) and the spring fairlead (2.4); Be processed with runner on valve piece (2.1), the one end is communicated with intake tunnel, and the other end is communicated with the cavity between push rod (2.7) and the pushing rod sleeve (2.9).
4. hydraulic chain saw according to claim 1 and 2, it is characterized in that, described work chain saw comprises chain (1.6), carrier bar (1.5), housing (1.8) and chain tensioning mechanism, chain (1.6) is enclosed within on the carrier bar (1.5), carrier bar (1.5) one ends are fixed on the housing (1.8), housing (1.8) is fixed on seawater or the fresh water hydraulic motor, and housing is provided with chain tensioning mechanism in (1.8); Chain tensioning mechanism comprises sliding shoe (3.2), cylinder (3.1) and adjustment screw (3.3), housing (1.8) has gathering sill, sliding shoe (3.2) is placed in the gathering sill, be fixed with cylinder (3.1) on the sliding shoe (3.2), chain (1.6) is close in the side of cylinder (3.1), also be inserted with adjustment screw (3.3) in the sliding shoe (3.2), adjustment screw (3.3) axially consistent with the gathering sill direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284055U CN201579490U (en) | 2009-09-27 | 2009-09-27 | Hydraulic pressure chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202284055U CN201579490U (en) | 2009-09-27 | 2009-09-27 | Hydraulic pressure chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579490U true CN201579490U (en) | 2010-09-15 |
Family
ID=42721483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202284055U Expired - Lifetime CN201579490U (en) | 2009-09-27 | 2009-09-27 | Hydraulic pressure chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201579490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600429A (en) * | 2013-11-12 | 2014-02-26 | 镇江远大传动机械有限公司 | Driving device of rope sawing machine |
| CN104697876A (en) * | 2015-03-12 | 2015-06-10 | 金华职业技术学院 | Chain saw cutting machine cutting performance testing method |
-
2009
- 2009-09-27 CN CN2009202284055U patent/CN201579490U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103600429A (en) * | 2013-11-12 | 2014-02-26 | 镇江远大传动机械有限公司 | Driving device of rope sawing machine |
| CN104697876A (en) * | 2015-03-12 | 2015-06-10 | 金华职业技术学院 | Chain saw cutting machine cutting performance testing method |
| CN104697876B (en) * | 2015-03-12 | 2017-05-24 | 金华职业技术学院 | Chain saw cutting machine cutting performance testing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100915 Effective date of abandoning: 20090927 |