CN2845982Y - Split hand held hydraulic shear - Google Patents
Split hand held hydraulic shear Download PDFInfo
- Publication number
- CN2845982Y CN2845982Y CN 200520140239 CN200520140239U CN2845982Y CN 2845982 Y CN2845982 Y CN 2845982Y CN 200520140239 CN200520140239 CN 200520140239 CN 200520140239 U CN200520140239 U CN 200520140239U CN 2845982 Y CN2845982 Y CN 2845982Y
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- head
- piston rod
- oil cylinder
- guide pin
- piston
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Abstract
The utility model discloses a split hand held hydraulic shear, which comprises an oil cylinder (5), a guide sleeve (2) and a shearing head (8), wherein the oil cylinder (5) is connected with the guide sleeve (2) which is connected with the shearing head. The oil cylinder (5) is provided with an oil inlet port (3), and a piston head (1) is installed in the oil cylinder (5). A piston rod (9) penetrates through the guide sleeve (2), and extends into the shearing head (8). A fixed cutter head (4) is installed in a position which is corresponding to a movable cutter head which is arranged on the piston rod (9) which is arranged in the shearing head (8), a reset spring (7) is installed in an annular installing groove (10) which is arranged in the guide sleeve (2), and one end of the reset spring is butted with the piston head (1). The utility model is characterized in that the piston rod (9) is elliptical, or square, or polygonal, and a guide sleeve hole which correspondingly penetrates in and is arranged in the guide sleeve (2) which is arranged in the piston rod (9) is elliptical, or square, or polygonal. The utility model has the advantages of small size and high strength.
Description
Technical field
The utility model relates to a kind of hydraulic test, especially a kind of cutting implement of the THE ADIABATIC SHEAR IN steel that can move within the specific limits, and specifically a kind of split type hand-held hydraulic pressure is cut.
Background technology
At present, steel (especially major diameter wire rod) cutting implement generally depends on the import integral hydraulic and cuts, and makes superiorly and functional, and shortcoming is that weight is big and maintenance cost is higher.
It is split type that of home make hydraulic pressure is cut many employings, because of integral hydraulic is cut required machining accuracy height, material capability is required high, split type relatively, when shearing is above above φ 20mm, the flexibility that integral hydraulic is cut is restricted more, because of itself weight is big, a people can't mention use with one hand, is split type cutting on the contrary, because of pump station part has been shared most of weight, haircut can be designed into light and handy being suitable for, and can really realize single hand-held shearing in hydraulic oil pipe length revolution range, and because the haircut action is simple, the simplified design of can trying one's best, thus the weight of haircut alleviated to greatest extent.
The many employings of the plunger designs that domestic split type hydraulic pressure is cut are cylindrical, thereby and add feather key and cause between moving knife and stationary knife that to prevent that piston from rotating collision causes shear fails, and on piston, spline because of need, so can influence intensity to bearing the piston of shearing side force, for overcoming the influence that causes because of splining, piston size thereby can design greatlyyer, so haircut integral body certainly will be bigger, thereby increased the weight of haircut.
Summary of the invention
The purpose of this utility model is to cut at existing hand-held hydraulic owing to need to process keyway on piston rod, thereby intensity can't meet the demands, it is bulky to make that whole hydraulic pressure is cut, the problem of hand-held inconvenience designs a kind of piston rod intensity height, helps hand-held hydraulic and cut the split type hand-held hydraulic pressure of miniaturization and cut.
The technical solution of the utility model is
A kind of split type hand-held hydraulic pressure is cut, comprise oil cylinder 5, guide pin bushing 2, cutting head 8, oil cylinder 5 links to each other with guide pin bushing 2, guide pin bushing 2 links to each other with cutting head, oil cylinder 5 is provided with oil-in 3, piston head 1 is installed in the oil cylinder 5, an end that has dynamic cutter head of the piston rod 9 that links to each other with piston head 1 passes guide pin bushing 2 and stretches in the cutting head 8, in cutting head 8 with piston rod 9 on dynamic cutter head opposite position place stationary knife head 4 is installed, being installed in the annular mounting groove 10 in the guide pin bushing 2 of back-moving spring 7, its end and piston head 1 offset, and it is characterized in that described piston rod 9 or are ellipse, or be square, or be polygon, correspondingly install dowel hole in the guide pin bushing 2 of piston rod 9 also or for oval, or be square, or be polygon.
Described piston rod 9 is best with the ellipse, and its long axis direction should be vertical with shear direction.
XY shape oil sealing 6 is installed between described piston head 1 and the oil cylinder 5.
The utlity model has following advantage:
The utility model can satisfy hand-held hydraulic and cut lightweight requirement, owing to cancelled the structure that traditional cylindrical piston adds feather key, when especially adopting oval piston bar and guide pin bushing fit structure, make the size of piston rod under the prerequisite of proof strength, dwindle greatly, thereby the overall volume that hydraulic pressure is cut can decline to a great extent.By effectively utilizing the big advantage of long axis direction intensity, can avoid because of undercapacity causes the piston bending, the ellipse short shaft direction is then stressed hardly, and therefore the guide pin bushing of Pei Heing has also increased intensity so with it.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the cutaway view of long axis direction of the oval piston bar of the utility model embodiment.
Fig. 3 is that the A-A of Fig. 2 is to cutaway view.
The specific embodiment
Following structure drawings and Examples are further described the utility model.
As shown in Figure 1, 2, 3.
A kind of split type hand-held hydraulic pressure is cut, comprise oil cylinder 5, guide pin bushing 2, cutting head 8, oil cylinder 5 links to each other with guide pin bushing 2, guide pin bushing 2 links to each other with cutting head, oil cylinder 5 is provided with oil-in 3, piston head 1 is installed in the oil cylinder 5 and by XY shape oil sealing 6 and seals, the piston rod 9 that links to each other with piston head 1 is oval (as Fig. 2, shown in 3) end that has dynamic cutter head of piston rod 9 passes also stretching in the cutting head 8 for oval-shaped dowel hole in the guide pin bushing 2, in cutting head 8 with piston rod 9 on dynamic cutter head opposite position place stationary knife head 4 is installed, being installed in the annular mounting groove 10 in the guide pin bushing 2 of back-moving spring 7, its end and piston head 1 offset, as shown in Figure 1.
When installing, piston rod 9, should guarantee that its long axis direction should be vertical with shear direction in order to increase its bending strength.
The electrical control of this real embodiment can adopt routine techniques to be realized, can carry out the control of pointer-type machinery by the mode that electro connecting pressure gauge is installed on the backhaul control loop, only need press the button during shearing, oil pump gets electric starting, magnetic valve is opened, hydraulic oil enters oil cylinder 5, piston 1 advances and drives dynamic cutter head and depress, up to cutting off workpiece, continue to press the button, treat that piston 1 advances to the limit, system pressure increases to the setting value of electro connecting pressure gauge, the electro connecting pressure gauge beat of pointer is to setting value, and oil pump cuts off the power supply, and the magnetic valve spill port is connected simultaneously, rely on the back-moving spring of establishing in the haircut portion 7 that piston 1 is pushed back, piston 1 is slowly got back to initial position, though during piston 1 backhaul button still according to, can not advance.
The split type hand-held hydraulic pressure of present embodiment is cut by relatively-stationary hydraulic power unit power is provided, connect with the oil-in 3 on the oil cylinder 5 on long oil pipe and the haircut part, haircut designs relatively lightly durablely, be not afraid of collision yet, XY shape oil sealing is adopted in the sealing that piston head 1 and oil cylinder are 5, and because of stroke is little, and the backhaul of back-moving spring formula normal pressure is adopted in backhaul, wearing and tearing do not produce added burden to oil sealing, can guarantee that oil cylinder 5 stable performances are oil-proof.Piston rod 9 adopts oval the cooperation with 2 of guide pin bushings, can guarantee that 2 of piston rod 9 and guide pin bushings do not have rotation, piston rod 9 vertical dynamic cutter head is installed foremost, when piston 1 advances, keep parallel with the stationary knife head 4 that is installed on cutting head 8 front ends, and utilize mistake to cut function, make the steel bar that is placed between two cuttves produce slippage, thereby cut off steel bar.
During concrete enforcement, the piston rod 9 of present embodiment and dowel hole also can be the anti-rotation structure of other form that matches, and can be the polygon of square, rectangle, rhombus, pentagon, hexagon or other limit number as its section.
Claims (3)
1, a kind of split type hand-held hydraulic pressure is cut, comprise oil cylinder (5), guide pin bushing (2), cutting head (8), oil cylinder (5) links to each other with guide pin bushing (2), guide pin bushing (2) links to each other with cutting head, oil cylinder (5) is provided with oil-in (3), piston head (1) is installed in the oil cylinder (5), an end that has dynamic cutter head of the piston rod (9) that links to each other with piston head (1) passes guide pin bushing (2) and stretches in the cutting head (8), in cutting head (8) with piston rod (9) on dynamic cutter head opposite position place stationary knife head (4) is installed, being installed in the annular mounting groove (10) in the guide pin bushing (2) of back-moving spring (7), its end and piston head (1) offset, and it is characterized in that described piston rod (9) or are ellipse, or be square, or be polygon, correspondingly install dowel hole in the guide pin bushing (2) of piston rod (9) also or for oval, or be square, or be polygon.
2, split type hand-held hydraulic pressure according to claim 1 is cut, and when it is characterized in that described piston rod (9) for ellipse, its long axis direction is vertical with shear direction.
3, split type hand-held hydraulic pressure according to claim 1 is cut, and it is characterized in that between described piston head (1) and the oil cylinder (5) XY shape oil sealing (6) being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140239 CN2845982Y (en) | 2005-12-27 | 2005-12-27 | Split hand held hydraulic shear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140239 CN2845982Y (en) | 2005-12-27 | 2005-12-27 | Split hand held hydraulic shear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2845982Y true CN2845982Y (en) | 2006-12-13 |
Family
ID=37511400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140239 Expired - Fee Related CN2845982Y (en) | 2005-12-27 | 2005-12-27 | Split hand held hydraulic shear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2845982Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658496A (en) * | 2012-05-17 | 2012-09-12 | 无锡市瑞尔精密机械股份有限公司 | Inner hole annular groove machining device |
| CN103482506A (en) * | 2013-09-09 | 2014-01-01 | 华南理工大学 | Diaphragm-type pneumatic hoist |
| CN106289461A (en) * | 2016-08-31 | 2017-01-04 | 金卡高科技股份有限公司 | A kind of two-chamber piston type gas flow standard |
| CN107052299A (en) * | 2017-03-20 | 2017-08-18 | 襄阳美利信科技有限责任公司 | New guide pillar structure for large mold |
-
2005
- 2005-12-27 CN CN 200520140239 patent/CN2845982Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658496A (en) * | 2012-05-17 | 2012-09-12 | 无锡市瑞尔精密机械股份有限公司 | Inner hole annular groove machining device |
| CN103482506A (en) * | 2013-09-09 | 2014-01-01 | 华南理工大学 | Diaphragm-type pneumatic hoist |
| CN106289461A (en) * | 2016-08-31 | 2017-01-04 | 金卡高科技股份有限公司 | A kind of two-chamber piston type gas flow standard |
| CN107052299A (en) * | 2017-03-20 | 2017-08-18 | 襄阳美利信科技有限责任公司 | New guide pillar structure for large mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061213 Termination date: 20111227 |