CN2035409U

CN2035409U - All-automatic hydraulic intensifier

Info

Publication number: CN2035409U
Application number: CN 88209035
Authority: CN
Inventors: 周旭东
Original assignee: DONGSHAN HYDRAULIC MACHINERY FACTORY OF JIAOJIANG CITY
Current assignee: DONGSHAN HYDRAULIC MACHINERY FACTORY OF JIAOJIANG CITY
Priority date: 1988-07-25
Filing date: 1988-07-25
Publication date: 1989-04-05

Abstract

The utility model relates to an all-automatic hydraulic intensifier, which is a hydraulic device for hydraulic intensifying; the present hydraulic intensifier pressure cylinder and the hydraulic intensifying cylinder are respectively connected with an oil pipe; various valves are needed to be increased for respectively oil-entering; these devices are complicated, the cost is high, and the leakage is serious; the pressure cylinder and the hydraulic intensifying cylinder are connected by the hydraulic intensifier; a low pressure valve and a low pressure pipe are adopted; the low pressure oil which is transfused inside is pressurized severalfold in a short time, and the hydraulic intensifying function is achieved. If the utility model is installed on a hydraulic machine and an injection machine, the power can be saved 70%-86% compared with the like product. The all-automatic hydraulic intensifier can be widely installed on various plastic injection machines, rubber injection moulding machines, pressure die casting machines for metal, hydraulic machines, etc., and has the advantages of convenient operation, low cost and saving energy.

Description

All-automatic hydraulic intensifier

The full-automatic pressurized machine that surges entirely is the hydraulic pressure installation of a kind of energy supercharging, and pressurization is played at the injection cylinder position, the hydraulic press pressure cylinder position that are particularly suitable for being placed on injection machine.

The pressurized machine of present domestic use all is that pressure cylinder is connected oil pipe, oil-feed separately (being exactly that clutch release slave cylinder and pressurized cylinder connect together) separately with pressurized cylinder, reach pressurization and yet must increase all kinds of doors that cut down, these apparatus structure complexity, cost height, leak serious, not ideal enough.

The purpose of this utility model is to provide a kind of full-automatic pressurized machine that surges entirely, injection cylinder position, hydraulic press pressure cylinder position at general injection machine, economize on electricity compared with similar products significantly after increasing this pressurized machine of dress, can the amount of saving energy 70%～86%, and this supercharger structure compactness, volume is little, and low cost of manufacture is easy to operate.

The utility model is achieved in that the full-automatic pressurized machine that surges entirely is made up of top cover, cylinder barrel, piston rod, bottom, a unidirectional A of cutting down that is made up of steel ball, stage clip, plug screw is housed on bottom, an order of being made up of steel ball, push rod, stage clip, linking sleeve, locking nut, adjusting screw rod is cut down B, and oilhole is arranged on the piston rod.

The low pressure oil of coming in the oil pump enters clutch release slave cylinder by the oilhole on top cover, the piston rod, slave cylinder piston is advanced fast run into workpiece, and the pressure of oil increases, when the pressure of oil surpasses the set pressure that order is cut down B, promptly opening sequence is cut down B, and pressure oil enters piston rod is advanced, the sealed circle of oilhole on piston rod is blocked and is made the clutch release slave cylinder oil pocket be in closed state, at this moment pressure increases sharply several times, thereby reaches pressurization, the amount of saving energy.

Fig. 1, the utility model structural representation:

Clutch release slave cylinder (1), top cover (2), oil-feed ring (3), seal ring (4), piece together the tight fillet of screw (5), cylinder barrel (6), piston rod (7), steel ball (8), stage clip (9), plug screw (10), steel ball (11), bottom (12), push rod (13), stage clip (14), linking sleeve (15), locking nut (16), adjusting screw rod (17).

Fig. 2, the utility model hydraulic system principle figure:

Left, center, right are that manual reverse of direction cuts down.

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:

With reference to Fig. 1, put into steel ball (8), stage clip (9), the unidirectional A of cutting down of plug screw (10) formation in the two through hole on bottom (12) respectively, put into steel ball (11), push rod (13), stage clip (14), linking sleeve (15), locking nut (16), adjusting screw (17) formation and cut down B in proper order, be used as pressure sequence and cut down, bottom (12) is gone up also has oilhole a.

Oil-feed ring (3) is arranged on the top cover (2), circle 4 seal rings of tight embedding (4) in the top cover (2), and fixing with piecing together the tight fillet of screw (5), top cover has oilhole b, c on (2).

Piston rod has oilhole on (7), in the middle of piston rod (7) small end an oilhole is arranged, and 8 little oilholes are arranged on the small end circle edge, and 8 little oilholes communicate with a middle oilhole, and piston rod (7) holds circle edge to tighten 4 standard seal circles of embedding greatly.

Having the unidirectional A of cutting down, order cuts down that the standard seal ring is fixed by bolts on the cylinder barrel (6) on bottom (12) pad of B, again piston rod (7) being put into the last standard seal ring of the interior pad of cylinder barrel (6) is connected the other end of cylinder barrel (6) and top cover (2) with bolt, this has just constituted the full-automatic pressurized machine that surges entirely, the full-automatic pressurized machine that surges entirely is fixed by bolts on the clutch release slave cylinder (1) of injection machine or hydraulic press, as shown in Figure 1, then, injection machine or hydraulic press just can have been worked.

With reference to Fig. 2, manual reverse of direction cut down be pushed to " left side " position, a large amount of low pressure oil that oil pump comes are handled to move to cutting down and are flowed to oilhole a, b, the unidirectional A that cuts down when a binding, it is all obstructed that order is cut down B, at this moment a large amount of low pressure oil have to flow to the b oilhole, oilhole in the middle of the little oilhole on the piston rod (7) of flowing through enters, flow into the epicoele of clutch release slave cylinder (1) again, slave cylinder piston is under the promotion of low pressure and mass flow oil, making quick idle running advances and runs into workpiece up to slave cylinder piston and can not advance, at this moment You pressure constantly increases, cut down the set pressure of B above order when the pressure of oil, order is cut down B and is opened, pressure oil cuts down the epicoele that enters pressurized machine through order, promoting piston rod (7) advances, oil inlet hole on piston rod (7) leaves oil-feed ring (3), and sealed circle (4) blocks, clutch release slave cylinder (1) epicoele and b oilhole disconnect, form enclosed cavity, oil pressure is increased, when piston rod (7) continues to advance to the operation point under pressure oil promotes, big along with piston rod (7), the change of small end area, thereby the pressure of oil is increased sharply again several times, reach the effect of supercharging.At this moment the oil of pressurized machine cavity of resorption flows to fuel tank through the C oilhole.

After hours, manual reverse of direction cut down move " right side " position to, the big gauging that oil pump comes returns piston rod (7) through the cavity of resorption that the c oilhole flows to pressurized machine, pressurized machine epicoele oil is just opened the unidirectional A of cutting down automatically, flows to fuel tank through the unidirectional A of cutting down, and falls back on the top up to piston rod (7), position as shown in Figure 1, manual reverse of direction cut down and get back to " in " position, one-period is finished, and goes round and begins again and no longer repeats.

Therefore pressurized machine has only used two unidirectional A of cutting down simple in structure and order to cut down B, and two cut down and be contained in the bottom (12), make the supercharger structure compactness, volume is little, have oilhole again on the piston rod (7) and make supercharger structure simple, cut down and the oil pipe of use all is that low pressure is cut down, low pressure fuel pipe, and what import from oil pump also is the low pressure oil of big flow, but this pressurized machine can make working pressure increase several times, thereby can saving power.

The 45 gram injection machines that Shanghai culture and education machinery plant produces, 165 kilowatts of former use motor is, increase this pressurized machine of dress on the injection machine now after, 22 kilowatts of motors just of need only use can reach same effect.Though injection machine, increased the full-automatic pressurized machine that surges entirely on the hydraulic press, funds have been increased, but this supercharger structure compactness, simple, low cost of manufacture, maintenance, easy for installation, but obvious energy conservation can be saved electric power 70%～86% for every, and injection machine, hydraulic press capacity are big more, energy-saving effect is remarkable more, so the investment of pressurized machine is at once recoverable.This pressurized machine can use at all to be needed in the hydraulic system of supercharging, and pressurization is played at the injection cylinder position, the hydraulic press pressure cylinder position that are particularly suitable for being placed on injection machine.

Claims

1, a kind of hydraulic pressure installation that relates to the energy supercharging, surge entirely full-automatic pressurized machine by top cover (2), oil-feed ring (3), seal ring (4), piece together the tight fillet of screw (5), cylinder barrel (6), piston rod (7), bottom (12) and form, it is characterized in that being equipped with on the bottom (12) and cut down, piston rod has oilhole on (7).

2, according to the pressurized machine of claim 1, it is characterized in that cutting down on the bottom (12) is the unidirectional A of cutting down, order is cut down B, each one.

3, according to the pressurized machine of claim 1 or 2, it is characterized in that the unidirectional A of cutting down is made up of steel ball (8), stage clip (9), plug screw (10), order is cut down B and is made up of steel ball (11), push rod (13), stage clip (14), linking sleeve (15), locking nut (16), adjusting screw (17).

4, according to the pressurized machine of claim 1, it is characterized in that in the middle of piston rod (7) small end oilhole being arranged, 8 little oilholes are arranged on the small end circle edge, an oilhole communicates with 8 little oilholes on the small end circle edge in the middle of piston rod (7) small end.