CN2035814U

CN2035814U - Hand-pushing hydraulic intensifier

Info

Publication number: CN2035814U
Application number: CN 88209009
Authority: CN
Inventors: 汪炎
Original assignee: NANTONG COUNTY HYDRAULIC MACHINERY FACTORY JIANGSU PROVINCE
Current assignee: NANTONG COUNTY HYDRAULIC MACHINERY FACTORY JIANGSU PROVINCE
Priority date: 1988-07-25
Filing date: 1988-07-25
Publication date: 1989-04-12

Abstract

The utility model relates to a hand-pushing hydraulic intensifier intensified by fluid power, which is composed of an oil tank, a pump body, a plunger, an oil inlet valve, an oil outlet valve, a handle, a spring, a sealing ring, etc. The pump body (4) is provided with a hermetic volume inside. When the handle is depressed and the plunger descends, the oil inlet valve is closed, and the pressure of hydraulic oil is increased. When the handle is thumbed again, hydraulic oil with certain pressure pushes the oil outlet valve to open and enters a high-pressure oil channel. When the handle is thumbed repeatedly, the oil pressure of a high-pressure oil tube rises continuously. The extreme pressure of the hand-pushing hydraulic intensifier can reach 196 megapascals. Simultaneously, the device is convenient to carry.

Description

Hand-pushing hydraulic intensifier

The utility model relates to the fluid power utensil that boosts.

In manufacturings such as metallurgical machinery, mining machinery, petrochemical industry, shipping industry, rolling stock, the hydraulic transmission utensil that needs big pressure, dispose corresponding annex,, install and remove the purpose of large-scale driving component and rolling bearing smoothly to reach the nut of fastening big-and-middle-sized machinery.At present domestic still less than delivery pressure height, the hand-pushing fluid power easy to carry utensil that boosts.

The purpose of this utility model is to provide a kind of limit delivery pressure can reach 196 megapascal (MPa)s, carries and hand-pushing fluid power booster easily.

Description of the present utility model is as follows: hand-pushing fluid power booster mainly is made up of oil tank, the pump housing, plunger, oiling valve, outlet valve, handle, spring, seal ring etc.For carrying with easy-to-use, oil tank is made elongated cylinder or cuboid, charges precision machine tool hydraulic oil or No. 30, No. 40 machinery oil in it, and oil-filled amount is half of oil tank volume.The pump housing that links with oil tank is the pith of this fluid power booster, and a vertical inner chamber is arranged in the pump housing, and plunger and piston spring are arranged at inner chamber top, and in line check valve is housed in the inner chamber bottom and the oil tank pipeline communicates, and enters pump housing inner chamber by in line check valve during oil-feed.In the vertical inner chamber of the pump housing, seal ring is housed, makes hydraulic oil be unlikely to scurry into plunger upper part, keep the confined space of hydraulic pressure, help boosting.In the pump housing, also have the horizontal inner chamber that links to each other with vertical inner chamber together, laterally in the inner chamber outlet valve and GAUGE CONNECTOR are being housed.On pump housing top lever-type handle is housed, the pressing handle can be pressed the plunger that pushes away in the pump housing by core bar.Oil-feed and oil pocket internal pressure are to form like this: unclamp the handle of depressing, core bar is thrown off the effect to plunger under the return spring effect, plunger moves upward under piston spring (pressure spring) effect, make pump housing inner chamber form low pressure area, the hydraulic oil of oil tank is through in line check valve inflow pump intracoelomic cavity, when depressing handle, move downward as the core bar that hinge pin is connected with handle, the promotion plunger overcomes piston spring and also moves downward, and this moment, in line check valve was closed, and pump housing inner chamber hydraulic oil pressure increases by force, pressing handle once more, the pressure of pump housing inner chamber hydraulic oil is improved constantly, and And backs down oil outlet valve spring, enters high-pressure oil duct.The pressure of high-pressure oil duct and high-pressure oil duct load and the oil outlet valve spring by accessory is in relative balance state to outlet valve steel ball active force sum and plunger cavity hydraulic oil to the active force of outlet valve steel ball, handle of every pressing, the oil pocket internal pressure will be by imbalance to new balance.When high-pressure oil duct meets the requirements of pressure, connect corresponding accessory, can produce bigger thrust, in order to installing and removing large-scale driving component, or the screw rod of big machinery is applied pressure, make its nut fastening.

Be described in further detail below in conjunction with drawings and Examples.

Description of drawings:

Fig. 1 is the structural representation of the utility model hand-pushing fluid power booster.1-high pressure fuel discharge port among the figure, 2-high-pressure stop valve, 3-hydralic pressure gauge, the 4-pump housing, 5-return spring, 6-core bar, 7-handle, 8-oil tank, 9-exhaust stopper, 10-fuel door, 11-oiling valve.

Fig. 2 is the sectional view of the pump housing (4).12-plunger among the figure, 13-piston spring, 14-lining, the 15-metal washer, 16-nylon washer, 17-seal ring, the 18-pump block, 19-outlet valve sealing gasket, 20-outlet valve steel ball, 21-outlet valve door spring, 22-delivery valve seat spring, 23-delivery valve seat, 24-oil-feed seating spring, 25-oil-feed valve seat, 26-oiling valve door spring, 27-oiling valve steel ball, 28-oiling valve sealing gasket.

Embodiment is that a kind of external dimension are 500 * 140 * 260 millimeters hand-pushing fluid power booster.Oil tank (8) is the horizontal long cylindrical container that is, 88 millimeters of external diameter φ, and 84 millimeters of internal diameter φ, use A by long 400 millimeters ₃Material is made.Exhaust stopper (9) is arranged on oil tank (8), be positioned at horizontal vessel end face top, at horizontal vessel end face middle part fuel door (10) is arranged, by oil level in the visual fuel tank of transparent organic glass, oil level is half of fuel tank.What be connected with oil tank (8) is the pump housing (4), and the pump housing (4) is the heart of fluid power booster.The pump housing (4) is cast with No. 45 steel, and its internal structure is provided by Fig. 2.One vertical inner chamber is arranged in the pump housing (4), and plunger (12), piston spring (13), lining (14) are arranged at inner chamber top.Lining (14) is set in the pump housing (4), and the outside ， And that piston spring (13) is enclosed within plunger (12) contacts with the top end omoplate of plunger (12).Plunger (12) is made through heat treatment with GCr15, long 63 millimeters of plunger (12), 5 millimeters of working portion external diameter φ.Lining (14) is made with H62.The pump housing (4) vertically is equipped with oil-feed valve seat (25), oiling valve sealing gasket (28) in the inner chamber bottom.Oiling valve door spring (26) and oiling valve steel ball (27) are housed in oil-feed valve seat (25).Oiling valve is an one-way cock, and under pump block (18), oil-feed seating spring (24) effect, oil-feed valve seat (25) is subjected to length of spring compressed power to be against pump housing intracavity bottom, constitutes one-way cock by oiling valve door spring (26) and oiling valve steel ball (27).20 millimeters of oil-feed valve seat (25) external diameter φ are high 34 millimeters.3.5 millimeters of oiling valve steel ball (27) ball φ, 0.2 millimeter of oiling valve door spring (26) line footpath φ, 3.5 millimeters of spring external diameter φ, 20 millimeters of height, 3 millimeters of pitches.At vertical inner chamber middle part, metal washer (15), nylon washer (16), seal ring (17) are arranged on the external diameter of plunger (12).Nylon washer (16) is made with teflon, and seal ring (17) is made with polyethylene from high pressure process, because the effect of seal ring (17) makes the unlikely piston spring part of scurrying of hydraulic oil, helps the rising of sealed container interior liquid pressure.Inner cavity at pump block (18) is divided into the sealed volume part, and boosting of liquid forms in this sealed volume in the pump housing.Pump block (18) is made with the 1Cr18NiTi material, and its external diameter is 9.8 millimeters of φ, and internal diameter is 5 millimeters, and length is 28 millimeters.The horizontal inner chamber that the sealed volume position communicates with it in addition in the pump housing (4) is equipped with delivery valve seat (23) and delivery valve seat spring (22), and outlet valve door spring (21) and outlet valve steel ball (20) are housed in the delivery valve seat (23).Outlet valve also is an one-way valve, props up delivery valve seat by delivery valve seat spring (22) and constitutes.The line of outlet valve door spring (21) directly is 0.3 millimeter of φ, 3.5 millimeters of spring external diameter φ, 20 millimeters of height, 3 millimeters of pitches.Long 590 millimeters of Lever type handle (7) handle (7) is housed on the pump housing (4) top, 22 millimeters of external diameter φ, the lever ratio of handle is 590:42.The core bar (6) that is connected with handle (7) hinge pin contacts with the plunger (12) in the pump housing (4).Return spring (5) is equipped with in core bar (6) outside.When unclamping the handle of depressing, the core bar (6) that is connected with handle (7) hinge pin is thrown off the effect to plunger (12) under return spring (5) effect, plunger (12) moves upward under piston spring (13) (pressure spring) effect, make pump housing inner chamber form the base pressure district, the oil of oil tank (8) enters pump housing inner chamber through in line check valve (11).When depressing handle (7), the core bar (6) that is connected with handle (7) hinge pin moves downward, and the elastic force that pushing plunger (12) overcomes piston spring (13) moves downward, and this moment, the in line check valve door was closed, hydraulic pressure increase in the sealed volume in the pump housing.Pressing handle (7) repeatedly makes the oil pressure of the hydraulic oil of sealed volume in the pump housing ， And that constantly raises back down outlet valve steel ball (20), to the hydraulic oil of high-pressure oil pipe output high pressure.Handle of every pressing, the oil pressure of high-pressure oil pipe will raise once.For monitoring the height of high pressure oil pressure, hydralic pressure gauge (3) is housed also in high-pressure oil duct.When the off-load of needs high-pressure and hydraulic oil, climb dynamic high-pressure stop valve (2), high pressure oil can flow back to oil tank (8) by the oil duct in the pump housing (4).

The advantage of hand-pushing hydraulic intensifier of the present utility model: this hand-pushing hydraulic intensifier, can utilize what of hand pressing handle number of times, make and set up oil pressure in different size in the high-pressure oil duct, prepare corresponding accessory, can produce thrust in different size, thereby select suitable oil pressure value according to the different situations of load. Hand-pushing hydraulic intensifier of the present utility model, because good seal performance, the oil pressure limiting value of high-pressure oil duct can reach 196 megapascal (MPa)s, is that general stepup transformer institute is inaccessible. The fluid power stepup transformer of this hand-pushing of while, volume is little, and is in light weight, is easy to carry, and flows and uses.

Claims

1, a kind ofly relates to the hand-pushing fluid power booster that fluid power boosts, it is characterized in that it is made up of oil tank, the pump housing, plunger, oiling valve, outlet valve, handle, spring, seal ring etc.

A, the horizontal inner chamber that one vertical inner chamber is arranged in the pump housing (4) and communicate with it, vertically plunger (12) is arranged at inner chamber top, piston spring (13), lining (14), lining (14) is set in the pump housing (4), the outside And that piston spring (13) is enclosed within plunger (12) contacts with the top end omoplate of plunger (12), vertically oil-feed valve seat (25) is equipped with in the inner chamber bottom, oiling valve sealing gasket (28), the oil-feed valve is an one-way cock, oiling valve door spring (26) and oiling valve steel ball (27) are housed in oil-feed valve seat (25), at vertical inner chamber middle part, metal washer (15) is arranged on the external diameter of plunger (12), nylon washer (16), seal ring (17), constitute sealed volume by seal ring (17) and pump block (18), laterally inner chamber is equipped with delivery valve seat (23) and oil outlet valve spring (22), outlet valve also is an one-way cock, and outlet valve door spring (21) and outlet valve steel ball (20) are housed in the delivery valve seat (23);

B, on the pump housing (4) top Lever type handle (7) is housed, the core bar (6) that is connected with handle (7) hinge pin contacts with the plunger (12) in the pump housing (4), and core bar (6) outside is with return spring (5);

C, be connected with oil tank (8) at the pump housing (4) left part, oil tank (8) is horizontal long cylindrical body volume or the cuboid volume that be, exhaust stopper (9) and fuel door (10) are arranged on oil tank (8), exhaust stopper (9) is positioned at oil tank end face top, and fuel door (10) is positioned at oil tank end face central authorities.

2, hand-pushing fluid power booster according to claim 1 is characterized in that being equipped with hydralic pressure gauge (3) on high-pressure oil duct.

3, hand-pushing fluid power booster according to claim 1 is characterized in that metal washer (15) makes with H-Mn58-2, and nylon washer (16) is made with teflon, and seal ring (17) is made with polyethylene from high pressure process.

4, hand-pushing fluid power booster according to claim 1, what it is characterized in that charging in oil tank (8) is precision machine tool hydraulic oil or No. 30 or No. 40 machinery oil, oil-filled amount is half of oil tank volume.

5, hand-pushing fluid power booster according to claim 1 is characterized in that the pump housing (4) casts with No. 45 steel.