CN201988582U - Hydraulic system of metal continuous extruding machine - Google Patents

Abstract

The utility model provides a hydraulic system for metal continuous extruding equipment. The hydraulic system comprises a power unit, a shoe lifting loop, a shoe pressing loop, a feed shearing loop and a bearing disassembling loop, wherein the power unit is connected with the shoe lifting loop, the shoe pressing loop, the feed shearing loop and the bearing disassembling loop through pipelines and reversing valves; an electromagnetic unloading valve is arranged in the power unit and comprises a first electromagnet and an overflow valve which are electrically connected with each other; the shoe pressing loop comprises a shoe pressing cylinder reversing valve, a hydraulic lock, a pressure relay, an energy accumulator and a shoe pressing cylinder which are connected with one another through the pipelines; a shoe pressing reversing valve is connected with the power unit through the pipelines and is provided with a second electromagnet and a third electromagnet; and the pressure relay is electrically connected with the first electromagnet of the power unit as well as the second electromagnet and the third electromagnet of the shoe pressing reversing valve. In the hydraulic system, the shoe pressing of the shoe pressing cylinder can be realized by using a conventional high-pressure hydraulic system, thereby greatly reducing the pressure bearing requirements of hydraulic elements and the pipelines, reducing the leakage of hydraulic oil liquid and the cost as well as the energy loss and improving the pressure maintaining efficiency.

Description

The hydraulic system of metal continuous extruder

Technical field

The utility model belongs to the hydraulic technique field, especially for the hydraulic system of metal continuous extrusion apparatus.

Background technology

The metal continuous extruder is a kind of metal continuous extrusion apparatus that adopts vanguard technology, and it has the production efficiency height, and characteristics such as the low automation height of energy consumption are promoted rapidly at the metal manufacture field.The hydraulic system of using in the continuously extruded machine equipment of original metal, adopt extra high voltage system to utilize the pressure shoes cylinder of two minor diameters to realize the pressure shoes action, this has just improved the bearing requirements of Hydraulic Elements and pipeline greatly, increased the hydraulic oil liquid leakage, simultaneously in order to guarantee the continuous operation of extra high voltage system, must rely on hydraulic system that high-voltage oil liquid is provided continuously, will increase the energy loss of hydraulic system like this at pressure shoes cylinder impaction state, cause the hydraulic oil liquid heating, temperature rises, guarantee the hydraulic system operate as normal, must additionally increase cooler, like this, both increased cost, increased energy loss again, hydraulic system is complicated simultaneously, has increased probability of malfunction.

Summary of the invention

The purpose of this utility model provides the conventional high-pressure hydraulic of a kind of usefulness and realizes pressure shoes cylinder pressure shoes, reduce the bearing requirements of Hydraulic Elements and pipeline greatly, reduce hydraulic oil liquid and reveal, reduce cost and energy loss, improve the hydraulic system of the metal continuous extruder of pressurize efficient.

For achieving the above object, the technical solution adopted in the utility model is a kind of hydraulic system of metal continuous extruder, comprise power unit, lift the boots loop, pressure shoes loop, charging shear loop and bearing dismantling loop, power unit by pipeline and reversal valve with lift boots loop, pressure shoes loop, charging shear loop and bearing dismantling loop and link to each other, its innovative point is:

Be provided with unloading electromagnetic valve in a, the power unit, unloading electromagnetic valve comprises first electromagnet and the overflow valve of electrical connection;

B, pressure shoes loop comprise pressure shoes cylinder reversal valve, hydraulic lock, pressure switch, accumulator and the pressure shoes cylinder that pipeline connects, the pressure shoes reversal valve is connected with the power unit pipeline, the pressure shoes reversal valve is provided with second electromagnet and the 3rd electromagnet, and pressure switch is electrically connected with first electromagnetic block of described power unit, second electromagnet and the 3rd electromagnet that the pressure shoes reversal valve is provided with;

C, described pressure shoes cylinder have the cylinder barrel greater than the 200mm diameter.

After adopting the technical solution of the utility model, owing to adopt a pressure shoes cylinder that has greater than the cylinder barrel of 200mm diameter in the pressure shoes loop, compare with the pressure shoes cylinder of conventional two oil cylinder with small diameter, in identical space, because the sectional area of cylinder barrel increases the demand that just can reduce greatly oil pressure, reduced the pressure of system, utilized conventional high-pressure system promptly can finish the pressure shoes function of the pressure shoes cylinder of two oil cylinder with small diameter, this hydraulic system is the conventional high-pressure system of pressure less than 31.5Mpa.In the power unit unloading electromagnetic valve is arranged simultaneously, when the first electromagnet dead electricity, oil pump is by the overflow valve off-load, and the energy level of system loss is low; When first electromagnet gets when electric, power unit is set up high pressure, provides power to other each loops.The pressure shoes loop is made up of pressure shoes cylinder reversal valve, hydraulic lock, pressure switch, accumulator and pressure shoes cylinder.Can realize the pressure shoes of pressure shoes cylinder and return action that by operation pressure shoes cylinder reversal valve the pressure dwelling loop of being made up of the unloading electromagnetic valve of pressure shoes cylinder reversal valve, hydraulic lock, pressure switch, accumulator and power unit during pressure shoes cylinder pressure shoes is realized the full-automatic pressurize continuously of pressure shoes cylinder.Lift boots loop, charging shear loop, bearing dismantling loop by operating corresponding solenoid directional control valve and the first electromagnet 1DT can finish relevant action by the oil cylinder of correspondence.The continuously extruded machine equipment of metal realizes that by the conventional high-pressure hydraulic of pressure less than 31.5Mpa the working method of pressure shoes cylinder pressure shoes can reduce the bearing requirements of Hydraulic Elements and pipeline greatly, reduces hydraulic oil liquid and leaks, and reduces cost and energy loss; The hydraulic pressure pressure dwelling loop of the continuously extruded machine equipment of metal by forming by hydraulic lock, pressure switch, accumulator, realize that the working method of pressure shoes cylinder pressurize can improve the pressurize efficient of pressure shoes cylinder greatly, realize the full-automatic pressurize continuously of pressure shoes cylinder, guarantee the continuous reliably working of continuously extruded machine equipment; The continuously extruded machine equipment of metal is at pressure shoes cylinder packing state, realize the working method of hydraulic system off-load by unloading electromagnetic valve, can greatly reduce the energy loss of hydraulic system, simultaneously, native system does not need additionally to add cooler, just can control the temperature of hydraulic oil, guarantee the hydraulic system reliably working.

Description of drawings

Fig. 1 is the hydraulic work system schematic diagram of the utility model metal continuous extruder.

The specific embodiment

The embodiment that provides below in conjunction with accompanying drawing describes in further detail the continuously extruded machine hydraulic system of the utility model metal.

Referring to Fig. 1, a kind of hydraulic system of metal continuous extruder, comprise the power unit I, lift boots loop II, pressure shoes loop III, charging shear loop IV and bearing dismantling loop V, the power unit I by pipeline and reversal valve with lift boots loop II, pressure shoes loop III, charging shear loop IV and bearing dismantling loop V and link to each other, be provided with unloading electromagnetic valve 1 in the power unit I, unloading electromagnetic valve 1 comprises the first electromagnet 1-1 and the overflow valve 1-2 of electrical connection.Pressure shoes loop III comprises pressure shoes cylinder reversal valve 6, hydraulic lock 2, pressure switch 3, accumulator 4 and the pressure shoes cylinder 5 that pipeline connects, pressure shoes reversal valve 6 is connected with power unit I pipeline, pressure shoes reversal valve 6 is provided with the second electromagnet 6-1 and the 3rd electromagnet 6-2, and the pressure device 3 that continues is electrically connected with the second electromagnet 6-1 and the 3rd electromagnet 6-2 that the first electromagnet 1-1, the pressure shoes reversal valve 6 of described power unit I are provided with; Described pressure shoes cylinder 5 has the cylinder barrel of 225mm diameter.

After adopting the technical solution of the utility model, because the hydraulic system of metal continuous extruder of the present utility model comprises the power unit I, lift boots loop II, pressure shoes loop III, charging shear loop IV and bearing dismantling loop V, adopt a pressure shoes cylinder 5 in the III of pressure shoes loop with cylinder barrel of 225mm diameter, compare with the pressure shoes cylinder of conventional two minor diameters such as 100mm diameter cylinder barrel, in identical space, because the sectional area of cylinder barrel increases the demand that just can reduce greatly oil pressure, reduced the pressure of system, this hydraulic system is the conventional high-pressure system of pressure less than 31.5Mpa.Be provided with unloading electromagnetic valve 1 in the power unit I, unloading electromagnetic valve 1 comprises the first electromagnet 1-1 and the overflow valve 1-2 of electrical connection, and when the first electromagnet 1-1 dead electricity, oil pump is by overflow valve 1-2 off-load, and the energy level of system loss is low; When the first electromagnet 1-1 gets when electric, the power unit I is set up high pressure, provides power to other each loops.Pressure shoes loop III is made up of pressure shoes cylinder reversal valve 6, hydraulic lock 2, pressure switch 3, accumulator 4 and pressure shoes cylinder 5.Its course of work is as follows: the first electromagnet 1-1 of unloading electromagnetic valve 1 gets when electric in the power unit I, the power unit I is set up high pressure, the second electromagnet 6-1 of pressure shoes cylinder reversal valve 6 gets at this moment, the hydraulic oil that oil pump is got is by the right position of pressure shoes cylinder reversal valve 6, the right hydraulic control one-way valve of hydraulic lock 2, enter the right chamber of pressure shoes cylinder 5, promote pressure shoes cylinder 5 and realize the pressure shoes action, when oil pressure reaches the blowing pressure of accumulator 4, the hydraulic oil that oil pump is got enters in the accumulator 4 simultaneously, and store, oil pressure continues to rise, when reaching the setting pressure of pressure switch 3, pressure switch 3 sends the signal of telecommunication, control the first electromagnet 1-1 and the second electromagnet 6-1 dead electricity, oil pump is by overflow valve 1-2 off-load, and pressure shoes cylinder 5 is in the pressure shoes duty.Because there are certain leakage in pipeline, Hydraulic Elements, accumulator 4 progressively discharges the hydraulic oil that stores, and the leakage of compensation conduit and Hydraulic Elements guarantees that pressure shoes cylinder 5 has normal operating oil pressure in the long time, finish reliable pressure shoes action, guarantee the continuous extruder reliable operation; Along with accumulator 4 constantly discharges the hydraulic oil that stores, oil pressure in the III of pressure shoes loop progressively descends, when oil pressure reaches the low point pressure of pressure switch 3 settings, pressure switch 3 can send the signal of telecommunication, control the first electromagnet 1-1 and the second electromagnet 6-1 gets, the power unit I provides high-voltage oil liquid to pressure shoes cylinder 5 and accumulator 4 once more, reaches the pressure that pressure switch 3 is set, hydraulic system off-load until pressure.When the first electromagnet 1-1 and the 3rd electromagnet 6-2 get when electric, the left hydraulic control one-way valve of the left side position of the hydraulic oil that oil pump is got by pressure shoes cylinder reversal valve 6, hydraulic lock 2, enter the left chamber of pressure shoes cylinder 5, promote pressure shoes cylinder 5 and realize returning action.Lifting boots loop II, pressure shoes loop III, charging shear loop IV and bearing dismantling loop V can have corresponding oil cylinder to finish relevant action by operating the corresponding solenoid directional control valve and the first electromagnet 1-1.Continuously extruded machine equipment realizes that by the conventional high-pressure hydraulic of pressure less than 31.5Mpa the working method of pressure shoes cylinder pressure shoes can reduce the bearing requirements of Hydraulic Elements and pipeline greatly, reduces hydraulic oil liquid and leaks, and reduces cost and energy loss; Continuously extruded machine equipment is by by hydraulic lock 2(or hydraulic control one-way valve), pressure switch 3(or electro connecting pressure gauge), the hydraulic pressure pressure dwelling loop formed of accumulator 4, realize that the working method of pressure shoes cylinder pressurize can improve the pressurize efficient of pressure shoes cylinder greatly, realize the full-automatic pressurize continuously of pressure shoes cylinder, guarantee the continuous reliably working of continuously extruded machine equipment; Continuously extruded machine equipment is at pressure shoes cylinder packing state, realize the working method of hydraulic system off-load by unloading electromagnetic valve 1, can greatly reduce the energy loss of hydraulic system, simultaneously, native system does not need additionally to add cooler, just can control the temperature of hydraulic oil, guarantee the hydraulic system reliably working.

Claims (1)

1. the hydraulic system of a metal continuous extruder, comprise power unit (I), lift boots loop (II), pressure shoes loop (III), charging shear loop (IV) and bearing dismantling loop (V), power unit (I) by pipeline and reversal valve with lift boots loop (II), pressure shoes loop (III), charging shear loop (IV) and link to each other with bearing dismantling loop (V), it is characterized in that:

Be provided with unloading electromagnetic valve (1) in a, the power unit (I), unloading electromagnetic valve (1) comprises first electromagnet (1-1) and the overflow valve (1-2) of electrical connection;

B, pressure shoes loop (III) comprise pressure shoes cylinder reversal valve (6), hydraulic lock (2), pressure switch (3), accumulator (4) and the pressure shoes cylinder (5) that pipeline connects, pressure shoes reversal valve (6) is connected with power unit (I) pipeline, pressure shoes reversal valve (6) is provided with second electromagnet (6-1) and the 3rd electromagnet (6-2), and pressure switch (3) is electrically connected with first electromagnetic block (1-1) of described power unit (I), second electromagnet (6-1) and the 3rd electromagnet (6-2) that pressure shoes reversal valve (6) is provided with;

C, described pressure shoes cylinder (5) have the cylinder barrel greater than the 200mm diameter.

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