CN2412715Y - Hydraulic band saw protecting device for horizontal band sawing machine - Google Patents
Hydraulic band saw protecting device for horizontal band sawing machine Download PDFInfo
- Publication number
- CN2412715Y CN2412715Y CN 00207150 CN00207150U CN2412715Y CN 2412715 Y CN2412715 Y CN 2412715Y CN 00207150 CN00207150 CN 00207150 CN 00207150 U CN00207150 U CN 00207150U CN 2412715 Y CN2412715 Y CN 2412715Y
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- piston
- oil
- band saw
- sawing machine
- oil outlet
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Abstract
The utility model relates to a protecting device for a hydraulic band saw of a horizontal band saw machine. The utility model is composed of an operating cylinder, a piston, an oil pump, an oil supply pipe, etc. which are connected with the saw frame. The sawing feed level of the utility model is guaranteed by a spring in the piston; the operating stability of a band saw blade is guaranteed by a throttle loop composed of an annular groove which is arranged on the outer side surface of the piston, an oil inlet hole and an oil outlet hole, wherein, the oil inlet hole and the oil outlet hole are arranged on a cylinder body. Accordingly, when used, a saw machine can automatically correct the pressure and the speed variation caused by unequal material and sectional areas of work pieces to be sawn, and accordingly, the stability of the sawing feed level is ensured. Compared with similar products, the output quantity is improved by 1/3, the service life to a saw blade can be extended by three times, the running noise is low, and the cutting smoothness of a processed work piece is good.
Description
The utility model relates to a kind of horizontal band sawing machine hydraulic pressure band saw protective device.
Existing band mill hydraulic protector, more commonly: mainly come the stroke of regulating piston, change the oil mass of oil outlet, thereby control the pressure and the speed of saw blade on the band mill by the elastic force of the machine oil in top land space itself.Though this design is simple in structure, but the pressure adjustable range is little, pressure and variable quantity are not obvious, and be inhomogeneous, because the material difference of workpiece for sawing, the sectional area of workpiece such as wire rod also can change in the sawing process, pressure that saw blade bore on the sawing machine and speed also and then change, if the levelling DeGrain, when the amount of feeding would be excessive, saw blade still can be in heavy condition, saw blade occurs and beats tooth, blocks even break accident.Blade life is shortened, and the increase to the user brings inconvenience and operating cost also is unfavorable for the raising of sawing efficient.
The purpose of this utility model is to overcome the defective of prior art, provides a kind of adjustable range big, and parameter changes evenly, and sawing machine can obtain the band saw protective device of best execution speed and pressure by the workpiece that different hardness or sectional area change.
By the horizontal band sawing machine hydraulic pressure band saw protective device of the present invention's design, compare with existing like product, exquisite composition, simplicity of design, reasonable, pressure and speed regulating effect are obvious.It is unified that lathe starts back speed speed, got rid of traditional disadvantage of drawing tooth.And improve 1/3rd than like product quantum of output, blade life can prolong 2 times.It is low to move noise simultaneously, and workpiece to be machined otch fineness is good, safe in utilization, convenient.
For reaching above-mentioned purpose, the utility model is achieved by the following scheme: adopt a spring to withstand in the endoporus on piston top, be mainly used to the stroke of control piston, to reach the control sawing amount of feeding.Simultaneously drive a cannelure at the outer surface of piston, make out and on side of cylinder block, form throttle circuit into and out of oilhole and cannelure space, utilize the lower limb and the area change between the oil outlet of piston face cannelure to control the oil mass size, produce restriction effect, make hydraulic pump speed and pressure change, thereby the speed of saw blade and pressure on the adjusting sawing machine have further guaranteed the stability of the sawing amount of feeding.
Fig. 1 is a cutaway view of the present utility model;
Fig. 2 is the utility model piston schematic diagram.
Below in conjunction with accompanying drawing present embodiment is described in detail:
As shown in Figure 1 and Figure 2, have a cannelure (7) on piston (3) outer surface, have fuel feed hole (5) and oil outlet (6) on the piston cylinder (1), spring (4) one ends withstand in the interior aperture of piston (3), and the other end withstands in the adjusting nut (2) that is tightened on the cylinder body (1).The lower limb () design of cannelure (7) is near the center line of oil outlet (6), and therefore, moving up and down of piston (3) can change the area of oil outlet (6).
When band mill processing work (12), band saw (11) is gone up the moving piston (3) of heading tape and is upwards moved the operating cylinder that links to each other with saw frame (1) in, and the stroke that pushes up on it also is that the sawing amount of feeding is controlled by the spring (4) that is installed in the endoporus of piston (3) top.This spring (4) can bear the pressure load about 35 kilograms, therefore, as long as workpiece to be machined (12), the requirement of operating pressure is no more than 35 kilograms, adopts spring (4) to guarantee that finishing of the sawing amount of feeding is fully possible.When the operating pressure of bearing when saw blade (11) lightened, spring (4) freely resetted, and drove piston (3) and resetted.
Simultaneously in order further to guarantee the stability of band saw (11) work, the utility model is driven a cannelure (7) at the outer surface of piston (3), make out on cylinder body (1) side into and out of oilhole (5), (6) and cannelure (7) space composition throttle circuit.When higher or sectional area is big when the hardness of workpiece to be machined (12) (operating pressure increase), band saw (11) is gone up the moving piston (3) of heading tape and is moved up, aisle spare between the lower limb () of cannelure (7) and the oil outlet (6) narrows down, the pressure oil flow reduces, and by hydraulic pump the pressure and the speed of saw blade on the sawing machine (11) is diminished.Otherwise, lower or the sectional area hour (operating pressure is little) when workpiece hardness, piston (3) is under the elastic force effect of spring (4), driving saw blade (11) moves down, aisle spare between cannelure (7) and the oil outlet (6) increases, the pressure oil flow increases, and the pressure of band saw (11) and speed also and then improve.This throttle circuit can be along with the variation of saw blade (11) load capacity that causes because of the material of workpiece (12), the variation of sectional area etc., the flow of automatic pressure regulation oil, therefore pipe pressure size not, the pressure and the speed of bearing on the saw blade (11) are stable, thereby have guaranteed the stability of the sawing amount of feeding of saw frame.Because pressure and speed are adjustable, stable, it is unified that sawing machine starts back speed speed, got rid of traditional disadvantage of drawing tooth again.Make the life-span of bands for band (11) prolong greatly.
When the lower limb () that moves to cannelure (7) on the piston (3) covers oil outlet (6) fully,, be provided with a quick oil return loop for the safety of system.As shown in Figure 1, be provided with a check valve between fuel feed hole (5) and the oil outlet (6).Valve opening passes between fuel feed hole (5) and the oil outlet (6), and steel ball (10) relies on the elastic force of spring (9).Press closer the intersection at valve opening and fuel feed hole (5), the other end of spring (9) withstands on the screw (8) that is fastened on the cylinder body (1).
Claims (4)
1, a kind of horizontal band sawing machine hydraulic pressure band saw protective device; form by the operating cylinder that links to each other with saw frame and piston, oil pump, oil supply pipe etc.; it is characterized in that; one spring withstands in the endoporus on piston top; have a cannelure on the outer surface of piston, the inlet hole on this cannelure and the cylinder body, oil outlet are formed throttle circuit.
2, horizontal band sawing machine hydraulic pressure band saw protective device as claimed in claim 1, its feature can be born 35 kilograms pressure at selected spring.
3, horizontal band sawing machine hydraulic pressure band saw protective device as claimed in claim 1, the lower limb design that it is characterized in that the cannelure on the piston outer surface is near the center line of oil outlet.
4, horizontal band sawing machine hydraulic pressure band saw protective device as claimed in claim 1 is characterized in that being provided with between fuel feed hole and the oil outlet check valve, and a steel ball relies on the elastic force of spring, presses closer the intersection at valve opening and fuel feed hole, forms a quick oil return loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207150 CN2412715Y (en) | 2000-03-24 | 2000-03-24 | Hydraulic band saw protecting device for horizontal band sawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00207150 CN2412715Y (en) | 2000-03-24 | 2000-03-24 | Hydraulic band saw protecting device for horizontal band sawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2412715Y true CN2412715Y (en) | 2001-01-03 |
Family
ID=33574900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00207150 Expired - Fee Related CN2412715Y (en) | 2000-03-24 | 2000-03-24 | Hydraulic band saw protecting device for horizontal band sawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2412715Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404467A (en) * | 2018-12-10 | 2019-03-01 | 新昌县万合机械有限公司 | A kind of hydraulic shock-absorbing cylinder |
-
2000
- 2000-03-24 CN CN 00207150 patent/CN2412715Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109404467A (en) * | 2018-12-10 | 2019-03-01 | 新昌县万合机械有限公司 | A kind of hydraulic shock-absorbing cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |