CN87102940A - The electricity liquid hammer - Google Patents

Abstract

The present invention is a kind of forging hammer device of doing power source with electric energy.It comprises unit head and hammer body, the hammer body structure is identical with existing forging hammer, unit head mainly is made up of parts such as motor, oil pump, working cylinder, hydraulically operated valve group, cooler, hammer stem sealing and tup bindiny mechanisms, and is arranged in the oil box, has constituted the dynamical system of independent completion.This apparatus structure compactness, floor space is little.Realize between pump, cylinder, the valve that no pipeline connects, reduced drag losses and leakage of oil link, than existing forging hammer energy-conservation 3/4.The equipment stable working, applied widely, repacking empty die forging of steaming or open die forging are simple.

Description

The electricity liquid hammer

The invention belongs to forging equipment, particularly do the forging hammer device of power source with electric energy.

Forging hammer occupies very big proportion in forging equipment, be most widely used a kind of, and wherein steam-air free hammer accounts for more than 70%.Existing steam-air power hammer is to do power source with steam or compressed air.There is energy resource consumption big (energy utilization rate only about 1%), and need to set up the expensive power station of investment, as the steam station etc., and environmental pollution is serious, and shortcomings such as working condition difference are very incompatible with current forging technology development.

External transformation to steam-air power hammer, carried out a large amount of development work, a kind of electric liquid that is developed in nineteen fifty-two as West Germany Lasco company drops hammer, developed into KGK type double-action hammer afterwards again, this electro-hydraulic forging hammer carries fluid pressure drive device, does not need power station, and its unit head can be contained in and directly drive tup strike motion on the die hammer, be used for transforming or replacing steam and air stamping hammer, but can not be used on transformation or the replacement flat-die hammer.

Task of the present invention is that a kind of electric liquid hammer of doing power source with electric energy of design is transformed or replaced existing steam-air free hammer and steam and air stamping hammer.It promptly can change uses shortcomings such as the equipment that steam, compressed air brought is many, energy loss is big, and floor space is big, can save energy again, avoids contaminated environment and improves working conditions.

The present invention's electricity liquid hammer has unit head and hammer body, and the hammer body is identical with existing forging hammer body structure, the power head structure feature of design is, it is by motor, oil pump, working cylinder system, the hydraulically operated valve group, hammer stem sealing and tup bindiny mechanism, compositions such as cooler, above-mentioned parts are arranged in the fuel tank, fuel tank is contained in can be put on hammer unit head bearing on one's body, is provided with board-like flexible member between bearing and the fuel tank.

Below in conjunction with description of drawings detailed structure of the present invention, implement, and operation principle.

Fig. 1 is the present invention's electricity liquid hammer external structure

Fig. 2 is electric liquid hammer unit head system construction drawing

Fig. 3 is electric liquid hammer unit head hydraulic operation structure and schematic diagram

Fig. 4 is a valve body, working cylinder system, hammer stem sealing and tup johning knot composition.

Fig. 5 has the three-dimensional coordinate schematic diagram of six freedom of movement for tup, and wherein, x is the x axle, and Y is a Y-axis, and Z is the Z axle.

Among Fig. 1, electric liquid hammer top is unit head (36), and the bottom is hammer body (37).

Among Fig. 2, (1) be motor, (2) are oil pump, and (3) are the hydraulically operated valve group, (4) be the working cylinder system, (5) be hammer stem sealing and tup bindiny mechanism, (6) are cooler, and these systems are arranged in fuel tank (7) body, constituted the dynamical system of an independent completion, be called electric liquid hammer unit head, it all is contained in can put on the unit head bearing (8) of hammer body (3), is provided with board-like flexible member (9) between bearing (8) and fuel tank (7).Have cooling water layer (34) in the bearing (8).

See Fig. 3, Fig. 4, the hydraulically operated valve group in the above-mentioned unit head is by a combined type cone valve, two-position four-way guiding valve (10), double-Y shaped 3-position 4-way guiding valve (11), safety overflow valve (12) and four check valves (13) are formed.The combined type cone valve comprises a main coning valve (14), pays cone valve (15) and piston (16), and its each center point-blank.All above-mentioned valves are integrated and are assembled in the valve body (17), and device is at the top of lift cylinder (18).The hydraulically operated valve group is handled control by double-Y shaped 3-position 4-way guiding valve (11), realizes the lifting and continuous strike of tup (23).Lift cylinder (18) belongs to the working cylinder system, and cylinder (19) is overlapped in its outside, and cover cylinder bottom portion and lift cylinder communicate, top and main coning valve communicate, when this structure is hit forging hammer, the oil of lift cylinder (18) cavity of resorption B chamber can be entered its epicoele C by main coning valve (14) valve port, its meaning is, hit the motion of hour hammer head height speed, oil in the cavity of resorption B will be discharged at a high speed, moment flow very big, if enter fuel tank by pipeline, to cause very big resistance, energy consumption is increased.This device adopts valve, and cylinder directly communicates and avoided this problem.Cylinder in the working cylinder system (20) is sleeved on cover cylinder (19), cylinder push-rod (21) is arranged on cover cylinder (19) both sides, guaranteed that cylinder has enough big volume, improved the performance of gas expansion for doing work, make oil, gas has separately solved the sealing ring damage, oil gas is the problem of string mutually, and structure is also very compact.

In this device, the two copper sheathings (24) of water-cooled, (25) hermetically-sealed construction are adopted in hammer stem (22) sealing, and adopted the mixed structure of Yx shape and O-ring seals, help the oil discharge in the cylinder when changing sealing ring and preventing to change sealing ring, avoid gas leak of the oil leakage, improve the dependability of device.

Because eccentric load causes that tup is twisted, it is the recurrent problem of forging hammer that hammer stem is ruptured by bending during forging.And this device has the knockdown hammer stem of sphere, and tup bindiny mechanism can guarantee that tup has six freedom of movement, makes not load by bending of hammer stem (22).It is by protruding self-aligning spherical support (26), mat insulation (27), and tup Connection Card lobe (28), connecting rod (29), adapter sleeve (30) connects semi-ring (31), and retainer plate (32) waits part to form.The non-bolt of having realized percussion system connects, and has got rid of bolt looseness and the possibility that has an accident.So-called tup has six freedom of movement, be meant that hammer stem and being connected of tup (23) are loosening the connections, mat insulation (29) lower plane and smooth contact the in tup (23) upper surface, this can make tup in x direction and Y direction translational motion (two frees degree are promptly arranged), pass through the sphere of protruding self-aligning spherical support (26) again, can make tup around X-axis, Y-axis, motion (two frees degree are promptly also arranged), because loosening the connection, tup also can rotate to reach around the Z axle has certain displacement in the Z direction, has therefore guaranteed when off-centre is forged, tup (23) is unlikely and causes hammer stem (22) bending in the scope that own guide clearance allows when twisted.Hammer stem (22) lower end is provided with bowl-type spring (33), makes hammer stem (22) obtain buffering, to avoid the hammer stem lower end by jumping-up.

Do not establish pumping plant for solving ground, the long distance of cancellation large diameter pipeline connects, oil pump can be taked vertical and the integrated assembling of valve body, in concrete the enforcement, this device is taked vertical homemade CY14-1B axial plunger pump (3) and integrated the fitting together of valve body (21), adopted the bolt-type Sealed casing pipe to connect between them, make compact conformation, connect reliable, and pump performance is had no effect, and it is very steady by additional flywheel (35) motor and oil pump to be worked under load, has realized for a long time people with pump and valve, the integrated hope together of working cylinder.

The present invention's electricity liquid hammer is to belong at gravity, and the thrust gas effect is the double-action hammer of acting down, and its energy transforming principle is; Motor (1) drives oil pump (2), overcomes gravity and gas load Compressed Gas lifting tup (23) by lift cylinder (18), and electric energy is transformed into tup potential energy to be hit, when hitting, this heat energy is transformed into the kinetic energy of tup, hits forging, to be transformed into the deformation energy of forging.In the cylinder (20), the gas compression-expansion, gas does not lose.And unlike old hammer hammer, tup promotes, and all wants air inlet during strike, exhaust,

And contain a large amount of heat energy and pressure energy in the gas that is discharged, cause a large amount of energy consumptions.In addition, transmitting medium is oil, and compressibility is very little, generally can ignore, make the energy transfer efficiency height, have only when tup promotes, motor and oil pump be conveying capacity, all the other are no-load running, consumed energy seldom, and the energy that tup hits is the summation by gravity of tup own and gas expansion for doing work.

This device operation principle is; When manual double-Y shaped 3-position 4-way guiding valve (11) when operating grip is moved hit position to, the oil-feed of A chamber, piston (16) rises, and pays a cone valve (15) and mentions together with main coning valve (14), and the oil in lift cylinder (18) B chamber is discharged into epicoele C.Tup (23) moves downward under the effect of the cylinder push-rod (21) of gravity and both sides, hits forging.By floor push control two-position four-way guiding valve (15), can discharge the oil mass in lift cylinder (18) B chamber, tup is fallen slowly.This move does not have at general steam-air power hammer, and it mainly acts on is when tup or mould are installed, and is convenient to adjust and centering usefulness.Also can be used for hitting the rhythm adjustment of stroke.This device tup can stop in the total travel scope arbitrary height and do long suspension action, also can do the double hit action of little stroke, the needs when satisfying the forging finishing.Above-mentioned each action is freely selected by the handle that the hammer person of department handles guiding valve (11) fully.

Adopt this device, can break away from old steam, compressed air energy-provision way and adopt an electric liquid energy-provision way, make compact conformation, floor space is little, realize between pump, cylinder, the valve that no pipeline connects, reduced drag losses and leakage of oil link, improved dependability and capacity usage ratio, than former forging hammer energy-conservation 3/4. It has also solved does not have the middle-size and small-size producer of power station to use forging hammer Difficulty.

This device is applied widely, is that steam and air stamping hammer or flat-die hammer all can utilize it to reequip, and for die hammer, will all take away together with cylinder portion more than the former cylinder seat board, loads onto this device unit head and gets final product, and does not damage any parts of original equipment. For flat-die hammer, the cylinder portion of former forging hammer all can be taken away, the unit head of this device is connected with former forging hammer fuselage and gets final product, and simple installation is reliable.

Claims (8)

1, a kind of electric liquid hammer.Have unit head (36) and hammer body (37), it is characterized in that, unit head comprises motor (1), oil pump (2), hydraulically operated valve group (3), working cylinder system (4), and hammer stem sealing and tup bindiny mechanism (5), cooler parts such as (6), and be arranged in fuel tank (7) body, fuel tank (7) is contained in can be put on the bearing (8) of hammer body, is provided with board-like flexible member (9) between bearing and the fuel tank.

2, electric liquid hammer according to claim 1, it is characterized in that, hydraulically operated valve group (3) is by a combined type cone valve, two-position four-way guiding valve (10), double-Y shaped 3-position 4-way guiding valve (11), safety overflow valve (12), four check valves (13) are formed, and union becomes to be assembled in the valve body (17).

3, electric liquid hammer according to claim 1 and 2 is characterized in that, the combined type cone valve in the hydraulically operated valve group comprises a main coning valve (14), pays cone valve (15), and piston (16), and its each center is on same straight line.

4, electric liquid hammer according to claim 1, it is characterized in that, working cylinder system (4) comprises the lift cylinder (18) of cylinder (20) and overcoat one cover cylinder (19), cover cylinder bottom portion communicates with lift cylinder, top communicates with main coning valve (14), and two push rods (21) of cylinder (20) are arranged on the two sides of cover cylinder.

5, electric liquid hammer according to claim 1 is characterized in that, the two copper sheathings (24) of water-cooled, (25) hermetically-sealed construction are adopted in the sealing of hammer stem (22).

6, electric liquid hammer according to claim 1 is characterized in that, hammer stem (22) and tup (23) bindiny mechanism are for having protruding self-aligning spherical support (26), mat insulation (27), tup Connection Card lobe (28), connecting rod (29), adapter sleeve (30) connects semi-ring (31).The sphere fabricated structure of retainer plate parts such as (32), and be provided with bowl-type spring (33) in the bottom of hammer stem (22).

7, electric liquid hammer according to claim 1 is characterized in that, has cooling water layer (34) in the bearing (8).

8, electric liquid hammer according to claim 1 is characterized in that, oil pump (3) takes vertical unit on valve body (17), connect with the bolt-type Sealed casing pipe therebetween, and an additional flywheel (35).

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