CN102581823B - Portable hydraulic cutting expands pincers - Google Patents
Portable hydraulic cutting expands pincers Download PDFInfo
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- CN102581823B CN102581823B CN201210066625.9A CN201210066625A CN102581823B CN 102581823 B CN102581823 B CN 102581823B CN 201210066625 A CN201210066625 A CN 201210066625A CN 102581823 B CN102581823 B CN 102581823B
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- pincers
- cylinder body
- oil
- oilhole
- oil groove
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Abstract
The present invention relates to a kind of Portable hydraulic cutting expand pincers, it by battery, motor, speed changer, hydraulic means (plunger displacement pump, hydraulically operated valve and oil cylinder association), cut expand pincers etc. form.Do not having the field of AC power combat a natural disaster or rush to repair scene, Portable hydraulic cutting expands manpower that pincers can replace heavy effort and cuts and expand pincers, cut off various barrier easily, and compact conformation is easy to carry, and is a kind of important salvage tool of combating a natural disaster.But this Class instrument is expensive in the market, is difficult to popularization and application.Hydraulic means is that Portable hydraulic cutting expands most critical in pincers, and be also the parts that cost is the highest, the present invention improves oil cylinder in hydraulic means and hydraulically operated valve, develops hydraulic means of high quality and at a reasonable price, and make this hydraulic shear expand pincers Quality advance, cost reduces.
Description
Technical field
The present invention relates to a kind of hydraulic shear expand pincers, a kind of do not have the field of AC power combat a natural disaster rescue or repairing time, for cut off or expand barrier Portable hydraulic cutting expand pincers.
Background technology
At the rescue scene such as earthquake, fire, be rid, often need cut expansion pincers with mechanokinetic and replace the manpower of heavy effort to cut expansion pincers.Because disaster scene does not have AC power usually, the Portable hydraulic cutting must applying battery expands pincers.The hydraulic shear occurred in the market expands pincers, and hydraulic unit is expensive, complete machine is brought a high price, not easily popularizes, and needs to develop a kind of hydraulic means of high quality and at a reasonable price, and the price making Portable hydraulic cutting expand pincers reduces.
The hydraulic means that Portable hydraulic cutting expands pincers is formed by plunger displacement pump, hydraulic control valve and oil cylinder set, structure is very compact, the valve body of the axial switchover control valve shown in usual Fig. 6 and needle, change pressure oil with mobile needle to flow to, have the undercut groove that dimensional accuracy is higher in valve body, this on compact conformation, complex-shaped cylinder body difficult processing to ensure precision.At present the structure of seen center oil-feed hydraulic jack is shown in Fig. 7, for ensure cylinder body and piston space leakage little, require cylinder inner bore and the very high concentricity of center circle cylinder and fineness, difficulty of processing is very high, and the processing request of piston and piston rod is also higher.These factors make the manufacturing cost of hydraulic means very high, must improve above-mentioned hydraulic part structure.
Summary of the invention
The technical problem to be solved in the present invention is: develop the hydraulic means that a kind of structure Portable hydraulic cutting simple, of high quality and at a reasonable price expands pincers, need to improve the oil cylinder in hydraulic means and control valve Structure and energy method for this reason.
Technical solution of the present invention is: a kind of Portable hydraulic cutting expands pincers, comprises battery, motor, gearbox and hydraulic means.Described hydraulic means is made up of oil cylinder, hydraulically operated valve and plunger displacement pump.Described oil cylinder is made up of cylinder body, piston and piston rod, and described hydraulically operated valve is made up of needle and commutation knob.The top of described cylinder body is provided with valve opening, and the needle of this valve opening and hydraulically operated valve is slidably matched, and the epicoele UNICOM of oil pocket with cylinder body.
The sidewall of described cylinder body is provided with asphalt channel, and the upper fuel feed hole of asphalt channel is communicated with the valve opening at cylinder body top, and is communicated with the epicoele of oil pocket through epicoele oilhole; The lower end of asphalt channel is communicated with the cavity of resorption oilhole of oil pocket.
The valve opening of described cylinder body does not sink and cuts oil groove, needle has right oil groove and left oil groove.When the knob that commutates is in " expansion " position, on needle, right oil groove makes the fuel feed hole of valve opening communicate with upper fuel feed hole, is communicated with cavity of resorption oilhole by asphalt channel, and now, left oil groove makes the spill port of valve opening communicate with epicoele oilhole.At this moment the pressure oil that plunger displacement pump injects enters oil cylinder lower oil cavitie from valve opening right oil groove through needle, and upper oil cavitie oil flows back to plunger displacement pump from left oil groove through spill port, and pressure oil inwardly promotes words plug, and piston rod pulls to cut and expands pincers expansion object.When the knob that commutates is in " shearing " position, on needle, left oil groove makes fuel feed hole communicate with epicoele oilhole, and now, right oil groove makes spill port communicate with upper fuel feed hole, is communicated with cavity of resorption oilhole by asphalt channel.At this moment the pressure oil that plunger displacement pump injects enters oil cylinder upper oil cavitie from valve opening left oil groove through needle, and lower oil cavitie oil flows back to plunger displacement pump from right oil groove through spill port, and pressure oil promotes outwards to talk about plug, and piston rod pulls to cut and expands pincers shearing object.
In the present invention, in cylinder body, lower oil cavitie turnover oilhole is formed by boring on cylinder side wall, and is communicated with valve opening by asphalt channel, cylinder body central cylinder is cancelled, cylinder body and piston, piston rod construction simplify, and reduce cylinder body and piston space seepage, reduce cylinder body, piston and words stopper rod fine finishining man-hour.Described cylinder hydraulic is handled heavy that valve opening does not have size of space required precision very high and is cut oil groove, needle has two oil grooves, makes the processing technology of cylinder body simplify like this.These methods that hydraulic device structure and technique are simplified, improve the quality of hydraulic means, avoid oil cylinder leakage of oil, save again a lot of Precision Machining man-hour, reduce rejection number, significantly reduce hydraulic means manufacturing cost, also just reduce the price that this Portable hydraulic cutting expands pincers.
Accompanying drawing explanation
Fig. 1: Portable hydraulic cutting expands pincers outline drawing;
Fig. 2: hydraulic device structure figure;
Fig. 3: oil cylinder sectional view;
Fig. 4: hydraulic control valve sectional view (cut and expand pincers expansion);
Fig. 5: hydraulic control valve sectional view (cut and expand pincers shearing);
Fig. 6: axial switchover control valve schematic diagram;
Fig. 7: the structure chart of center oil-feed hydraulic jack.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
A kind of Portable hydraulic cutting of the present invention expands pincers, comprises battery, motor, gearbox and hydraulic means, sees Fig. 1.Described hydraulic means is that oil cylinder 1, hydraulically operated valve 2 and plunger displacement pump are formed, and sees Fig. 2.Described oil cylinder 1 is made up of cylinder body 11, piston 12 and piston rod 13, and described hydraulically operated valve 2 is made up of needle 21 and commutation knob 22.As shown in Figure 3, the top of described cylinder body 11 is provided with valve opening 112, and this valve opening 112 is slidably matched with the needle 21 of hydraulically operated valve 2, and the epicoele UNICOM of oil pocket 111 with cylinder body 11.
The sidewall of described cylinder body 11 is provided with asphalt channel 116, and the upper fuel feed hole 115 of asphalt channel 116 is communicated with the valve opening 112 at cylinder body 11 top, and is communicated with through the epicoele of epicoele oilhole 114 with oil pocket 111; The lower end of asphalt channel 116 is communicated with the cavity of resorption oilhole 113 of oil pocket 111.
The valve opening 112 of described cylinder body 11 does not sink and cuts oil groove, needle 21 has right oil groove 211 and left oil groove 212.As shown in Figure 4, when the knob 22 that commutates is in " expansion " position, on needle 21, right oil groove 211 makes the fuel feed hole 117 in hole 112 communicate with upper fuel feed hole 115, communicated with cavity of resorption oilhole 113 by asphalt channel 116, now, left oil groove 212 makes the spill port 118 of valve opening 112 communicate with epicoele oilhole 114.At this moment the pressure oil that plunger displacement pump injects enters oil cylinder 11 lower oil cavitie from valve opening 112 right oil groove 211 through needle 21, and upper oil cavitie oil flows back to plunger displacement pump from left oil groove 212 through spill port 118, and it is inside that pressure oil promotes words plug 12, and piston rod 13 pulls to cut and expands pincers expansion object.As shown in Figure 5, when the knob 22 that commutates is in " shearing " position, on needle 21, left oil groove 212 makes fuel feed hole 117 communicate with epicoele oilhole 114, now, right oil groove 211 makes spill port 119 communicate with upper fuel feed hole 115, is communicated with cavity of resorption oilhole 113 by asphalt channel 116.At this moment the pressure oil that plunger displacement pump injects enters oil cylinder 11 upper oil cavitie from valve opening 112 left oil groove 212 through needle 21, and lower oil cavitie oil flows back to plunger displacement pump from right oil groove 211 through spill port 119, and pressure oil promotion words plug 12 is outside, and piston rod 13 pulls to cut and expands pincers shearing object.
Described battery is that 18V manages battery; Described motor is 755 type dc motors; Described gearbox to be speed reducing ratio be 4 planet-gear speed reducer.
As shown in Figure 3, in the cylinder body 11 of described hydraulic means, the cavity of resorption oilhole 113 of oil pocket 111 is formed by the internal drilling of cylinder body 11 sidewall, and be communicated with valve opening 112 by asphalt channel 116, make the central cylinder being provided with cylinder body shown in Fig. 7 in cylinder body 11, cylinder body 11, piston 12 and piston rod 13 structure simplify, reduce seepage between cylinder body 11 and piston 12, reduce cylinder body 11, piston 12 and piston rod 13 fine finishining man-hour.
As shown in Figure 4,5, the valve opening 112 of described cylinder body 11 does not have very high heavy of the size of space required precision shown in Fig. 6 cut oil groove, needle 21 has right oil groove 211 and left oil groove 212.This makes complex-shaped cylinder body processing technology simplify, and reduces Precision Machining man-hour, rate of reducing the number of rejects and seconds.
The course of action that described Portable hydraulic cutting expands pincers is: after power-supply battery is connected, motor Kei moves, Plunger Pump Shaft is rotated, pressure oil injects cylinder body 11, if now commutate, knob 22 is in " expansion " position, pressure oil enters oil pocket 111 cavity of resorption oilhole 113, and piston 12 is inwardly drawn, and cuts and expands pincers expansion object.Commutation knob 22 rotation direction " shearing " position, epicoele oilhole 114 oil-feed, piston 12 to extrapolation, promotes piston rod 13 outside, makes to cut to expand to clamp to shear object.
Portable hydraulic cutting of the present invention expands pincers and is not limited to the above embodiments, and those skilled in the art make the change of unsubstantiality, all fall into protection scope of the present invention.
Claims (2)
1. a Portable hydraulic cutting expands pincers, comprises battery, motor, gearbox and hydraulic means; Described hydraulic means is made up of oil cylinder (1), hydraulically operated valve (2) and plunger displacement pump, described oil cylinder (1) is made up of cylinder body (11), piston (12) and piston rod (13), described hydraulically operated valve (2) is made up of needle (21) and commutation knob (22), the top of described cylinder body (11) is provided with valve opening (112), the needle (21) of this valve opening (112) and hydraulically operated valve (2) is slidably matched, and the epicoele UNICOM of oil pocket (111) with cylinder body (11); It is characterized in that:
The sidewall of described cylinder body (11) is provided with asphalt channel (116), and the upper fuel feed hole (115) of asphalt channel (116) is communicated with the valve opening (112) at cylinder body (11) top, and is communicated with through the epicoele of epicoele oilhole (114) with oil pocket (111); The lower end of asphalt channel (116) is communicated with the cavity of resorption oilhole (113) of oil pocket (111);
The valve opening (112) of described cylinder body (11) is not established sink and cut oil groove, needle (21) has right oil groove (211) and left oil groove (212); When the knob (22) that commutates is in " expansion " position, the upper right oil groove (211) of needle (21) makes the fuel feed hole of valve opening (112) (117) communicate with upper fuel feed hole (115), communicated with cavity of resorption oilhole (113) by asphalt channel (116), now, left oil groove (212) makes the spill port of valve opening (112) (118) communicate with epicoele oilhole (114); When the knob (22) that commutates is in " shearing " position, the upper left oil groove (212) of needle (21) makes fuel feed hole (117) communicate with epicoele oilhole (114), now, right oil groove (211) makes spill port (119) communicate with upper fuel feed hole (115), is communicated with cavity of resorption oilhole (113) by asphalt channel (116).
2. Portable hydraulic cutting according to claim 1 expands pincers, and its feature is: described battery is 18V lithium battery; Described motor is 755 type dc motors; Described gearbox to be speed reducing ratio be 4 planet-gear speed reducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066625.9A CN102581823B (en) | 2012-03-14 | 2012-03-14 | Portable hydraulic cutting expands pincers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210066625.9A CN102581823B (en) | 2012-03-14 | 2012-03-14 | Portable hydraulic cutting expands pincers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102581823A CN102581823A (en) | 2012-07-18 |
| CN102581823B true CN102581823B (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210066625.9A Active CN102581823B (en) | 2012-03-14 | 2012-03-14 | Portable hydraulic cutting expands pincers |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106625422B (en) * | 2017-02-13 | 2019-08-20 | 杭州众铎消防科技有限公司 | Electric cutting and expanding device |
| CN112060001B (en) * | 2020-09-28 | 2023-11-28 | 烟台艾迪精密机械股份有限公司 | Rescue is with cutting broken expansion pincers and control system of tearing open |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489926Y (en) * | 2001-03-05 | 2002-05-08 | 佛山市日丰企业有限公司 | Electric hydraulic spanner device |
| CN1710295A (en) * | 2004-06-16 | 2005-12-21 | 陈城书 | Electrohydraulic tube for electrohydraulic chip |
| EP1537933A4 (en) * | 2002-06-14 | 2006-03-29 | Ogura Kk | Hydraulic actuator |
| CN201586950U (en) * | 2009-10-15 | 2010-09-22 | 孙凤鸣 | Hydraulic sleeve wrench |
| CN202498524U (en) * | 2012-03-14 | 2012-10-24 | 上海尔速机械设备有限公司 | Portable hydraulic shearing and expanding pincers |
-
2012
- 2012-03-14 CN CN201210066625.9A patent/CN102581823B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489926Y (en) * | 2001-03-05 | 2002-05-08 | 佛山市日丰企业有限公司 | Electric hydraulic spanner device |
| EP1537933A4 (en) * | 2002-06-14 | 2006-03-29 | Ogura Kk | Hydraulic actuator |
| CN1710295A (en) * | 2004-06-16 | 2005-12-21 | 陈城书 | Electrohydraulic tube for electrohydraulic chip |
| CN201586950U (en) * | 2009-10-15 | 2010-09-22 | 孙凤鸣 | Hydraulic sleeve wrench |
| CN202498524U (en) * | 2012-03-14 | 2012-10-24 | 上海尔速机械设备有限公司 | Portable hydraulic shearing and expanding pincers |
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| Publication number | Publication date |
|---|---|
| CN102581823A (en) | 2012-07-18 |
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