CN2054743U - High energy screw press - Google Patents

Abstract

The utility model discloses a high power screw press which is composed of a machine frame, a workbench, a kinematic scheme, a clutch quick disconnect system, a clutch interval self compensating system and an electric-hydraulic power control system, and the clutch quick disconnect system is composed of a checking cylinder, a gripper wheel, a friction wheel, a propeller shaft, a drawing driver, a steel cable, a relief valve, a press spring and a friction disk. The clutch interval self compensating system is composed of a compensating cylinder, an armature block, a spring, a unidirectional cut-off valve, a gravity tank and a flag-rod. The running speed of the high power screw press is fast and can reach to 30 to 40 times every minute. The utility model can be widely applied to press working procedures such as forge hot, cold-forging, etc.

Description

High energy screw press

The utility model relates to high power screw press, the high power screw press of technologies such as the forge hot that is used for mechanical pressure processing of more clearly saying so, cold forging, punching press, stretching.

The high power screw press in past has high energy, efficient, characteristics such as the speed of service is fast.Its highest blows per minute can reach 30-40 time, and its transmission efficiency can reach about 33%, and its tonnage is also bigger.This high power screw press is because the speed of service is fast, thus rapidly, exactly solenoidoperated cluthes engagement with throw off the key just become decision forcing press performance indications.And clutch disengagement system fast uses travel switch, electric test or time control act in the past, and positioning timing is all not really reliable, and structure is comparatively complicated, makes also difficulty.In addition, it is certain that the compacting ring of high power screw press and the gap between brake pad require to keep, and its clutch play bucking-out system also is the key of decision forcing press performance indications.And the mode that clutch play bucking-out system in the past adopts plus-minus to adjust packing ring is adjusted, and wastes time and energy, and is very inconvenient.

The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of speed fast, and efficient height, energy are big, and have the high power screw press that comparatively simple, reliable, sensitive clutch is thrown off system and clutch play bucking-out system fast.

In order to achieve the above object, the utility model high power screw press is by frame, rack-mounted workbench, rack-mounted kinematic system, the clutch that is installed on the kinematic system is thrown off system fast, be installed on the kinematic system the clutch play bucking-out system and to said system control electric--hydraulic power system constitutes.The kinematic system of high power screw press by rack-mounted big flywheel, be installed in hold-down cylinder, the compacting ring that links to each other with hold-down cylinder on the big flywheel, be connected in lifting spring, be positioned at the brake pad of compacting ring below on the compacting ring, the small flywheel that drives with brake pad, the screw rod that is connected with small flywheel, the slide block that screw rod drives constitute the lift cylinder of slide block backhaul.The strike process begins, and is electric--and hydraulic power system is gone into hold-down cylinder with oil pressure.Eight hold-down cylinders are delivered to pressure on the brake pad by compacting ring, and brake pad is passed to small flywheel to moment of torsion, and drive screw, slide block down hit.During strike, the slide block contact workpiece.When hitting power reached predetermined pressure＜critical torque 〉, large and small flywheel slided, and hold-down cylinder is off-load immediately, hit and finished.Slide block is then gone up by the kicker cylinder pull-up.

Clutch throw off fast system by be installed in master cylinder on the big flywheel, be assemblied in a pair of clamping wheel on the master cylinder piston rod, the boundary in the friction pulley between clamping wheel and the small flywheel, be installed on the big flywheel power transmission shaft with the friction pulley driven rotary, be fastened on the pulling wheel on the power transmission shaft, an end is fixed on steel wire rope on the pulling wheel, is constituted with the be connected unloader of pulling control of the steel wire rope other end.During the slide block uniform motion, large and small flywheel is static relatively.At this moment master cylinder is pressed on friction pulley on the small flywheel outer, for off-load is got ready.Finish when hitting, produce when sliding, under the effect of small flywheel, friction pulley is rotated, affect the off-load of steel wire rope pulling unloader by power transmission shaft, pulling wheel, small flywheel is thrown off fast.The power transmission shaft upper end that clutch is thrown off system fast is equipped with holddown spring and is pressed on friction plate on the pulling wheel with holddown spring.Friction plate and holddown spring are for unlikely steel wire rope or unloader draw ring to constant power of steel wire rope output.When pulling force surpassed permissible value, the pulling wheel skidded with friction plate, plays a protective role.

The clutch play bucking-out system by be fixed on compensating cylinder on the big flywheel, be connected in the pistons end of compensating cylinder and rank piece that compacting ring in the rank embedding, be installed in spring, the one-way throttle valve that is installed in compensating cylinder oil-feed loop, the top tank that is installed in big flywheel mediad compensating cylinder fuel feeding that make piston reset in the compensating cylinder, be installed on the compacting ring and expose the marker post above the big flywheel and be installed in compacting ring and big flywheel between lift spring, the self compensating system that is constituted.Also have on the marker post can send alarm signal near limit switch.Native system can automatically remain at 2MM to compacting ring and brake pad gap after the brake pad wearing and tearing.The rank piece keeps in the mouth compacting ring, and when compacting ring was depressed, compacting ring was pressed in rank piece lower edge, is pressed on the brake pad simultaneously.Hold-down cylinder gos up after the off-load, and compacting ring is upwards mentioned under the effect that lifts spring, till rank piece upper edge is run in the compacting ring upper edge.The plane constantly descends with wearing and tearing on the brake pad, and the lower edge of rank piece also just constantly descends.Compensating cylinder can constantly replenish oil mass in the top tank inwards, and the opening that compacting ring and gap between the brake pad is being remained be connected piece and the difference of compacting ring thickness are 2MM.When changing brake pad, the stop valve of one-way throttle valve is opened, the oil in the oil cylinder comes back in the top tank under the effect of spring and goes.Marker post both can be convenient to the abrasion condition that the operator observes brake pad, also can send alarm signal and remind the maintenance personal in time to change brake pad.The task of the utility model high power screw press comes to this and finishes.

This practicality row type has simple, reliable, sensitive clutch and throws off system and clutch play bucking-out system fast, abandoned the clutch clearance ring method of adjustment that wastes time and energy and with forming switch, the clutch of electric test, time control act manufacturing is thrown off system fast.Save the time, improved reliability and sensitivity.Can be widely used in the operations such as forge hot, cold forging, punching press, stretching in the mechanical pressure processing.

Below in conjunction with drawings and Examples the utility model high power screw press is done further explanation.Fig. 1 is a structural representation of the present utility model.Among the figure, frame 1, workbench 2, kinematic system, clutch are thrown off system, clutch play bucking-out system and electric fast--and hydraulic power system constitutes high power screw press.Kinematic system is tight 5 by big flywheel 3, hold-down cylinder 4, trim ring, lift spring 6, brake pad 7, small flywheel 8, screw rod 9, slide block 10, lift cylinder 11 are constituted.Clutch is thrown off system fast and is made of master cylinder 12, clamping wheel 13, friction pulley 14, power transmission shaft 15, pulling wheel 16, steel wire rope 17 and unloader 18.Holddown spring 19 and friction plate 20 are housed on its power transmission shaft.The clutch play bucking-out system is then by compensating cylinder 21, rank piece 22, spring 23, one-way throttle valve 24, top tank 25, marker post 26 with lift spring 6 and constituted.Also can have on the marker post near limit switch 27 to report to the police.

Fig. 2 is the vertical view of Fig. 1.Master cylinder 12, clamping wheel 13, friction pulley 14, brake pad 7, small flywheel 8, big flywheel 3, top tank 25 etc. all express clearly among the figure.Fig. 3 is a hydraulic schematic diagram of the present utility model.Hold-down cylinder 4, compacting ring 5, master cylinder 12, clamping wheel 13, friction pulley 14, top tank 25, unloader 18, one-way throttle valve 24, compensating cylinder 21, rank piece 22 etc. further express clearly among the figure.

The utility model embodiment has simple, reliable, sensitive clutch Quick release system and clutch play bucking-out system, can be widely used in the operations such as forge hot in the mechanical pressure machined, cold forging, punching press, stretching.

Claims (4)

1, a kind of by frame, rack-mounted workbench, rack-mounted kinematic system, the clutch that is installed on the kinematic system is thrown off system fast, be installed on the kinematic system the clutch play bucking-out system and to said system control electric--the high power screw press that hydraulic power system constituted, it is characterized in that said kinematic system is by rack-mounted big flywheel, be installed in the hold-down cylinder on the big flywheel, the compacting ring that links to each other with hold-down cylinder, be connected in the spring that lifts on the compacting ring, be positioned at the brake pad of compacting ring below, small flywheel with the brake pad driving, the screw rod that is connected with small flywheel, the slide block that screw rod drives constitutes the lift cylinder of slide block backhaul, said clutch is thrown off system fast by the master cylinder that is installed on the big flywheel, be assemblied in a pair of clamping wheel on the master cylinder piston rod, the friction pulley of boundary between clamping wheel and small flywheel, be installed on the big flywheel power transmission shaft with the friction pulley driven rotary, be fastened on the pulling wheel on the power transmission shaft, one end is fixed on the steel wire rope on the pulling wheel, is constituted with the be connected unloader of pulling control of the steel wire rope other end.

2,, it is characterized in that said clutch is equipped with holddown spring and is pressed on the friction plate that pulling is taken turns with holddown spring on throwing off the power transmission shaft of system fast according to the described high power screw press of claim 1.

3,, it is characterized in that said clutch play bucking-out system is a kind of by the compensating cylinder that is fixed on the big flywheel according to claim 1 or 2 described high power screw presses.Be connected in the pistons end of compensating cylinder and the rank piece that compacting ring in the rank embedding, be installed in the spring that makes piston reset in the compensating cylinder, the one-way throttle valve that is installed in compensating cylinder oil-feed loop, be installed in big flywheel mediad compensating cylinder fuel feeding top tank, be installed on the compacting ring and expose the marker post above the big flywheel and be installed in compacting ring and big flywheel between lift the self compensating system that spring constitutes.

4, according to the described high power screw press of claim 3, it is characterized in that having on the said marker post can send alarm signal near limit switch.

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