Summary of the invention:
Purpose of the present invention, be exactly at the existing in prior technology deficiency, and two kinds of electrohydraulic chip electricity consumption liquid Manifold technology schemes are provided, this scheme all is to adopt to add elastic pressuring plate on diaphragm, a kind of scheme is to compress diaphragm with the screw thread between coil base and the chip substrate, and diaphragm is fixed; Another program is to compress diaphragm with jackscrew, and diaphragm is fixed.Two kinds of schemes all can be fixed diaphragm effectively, make assembling and debugging become simple and convenient, can help improving output and reduce cost, so can help promoting.
This programme is realized by following technical measures.
The first string: mainly include chip substrate, coil base and coil that covering palte seal is arranged in chip substrate, there is magnetic core in axle center at coil, the fixing flexible sheet of one periphery is arranged at coil with above the magnetic core, be fixed with the control stem stem of belt carcass band of column groove above the flexible sheet center, control stem stem overcoat one ring set, outer wall at ring set has oil groove to communicate with oil duct, there is oilhole to communicate on the described oil groove with the stem stem annular groove on the control stem stem, the characteristics of this programme have a cyclic spring compressing tablet on described diaphragm periphery, coil base by with chip substrate on screw thread extruding gland, gland pushes diaphragm again and elastic pressuring plate fixes diaphragm; Oil groove on the described ring set outer wall has left oil groove and two not connected oil grooves of right oil groove, left oil groove communicates with left oil duct on the oil circuit ring, right oil groove communicates with right oil duct on the oil circuit ring, there are being two on the left oil groove on same horizontal plane but left oil groove left side hole and the left oil groove right hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, there are being two on the right oil groove equally on same horizontal plane but right oil groove right hole and the right oil groove left side hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, and hole, a left oil groove left side is corresponding to the vertical center line of ring set unfolded drawing with hole, a right oil groove left side, and the right hole of left oil groove is corresponding to the vertical center line of ring set unfolded drawing with the right hole of right oil groove.The concrete characteristics of this programme also have, and also have wedge between described elastic pressuring plate and diaphragm.Described elastic pressuring plate can be the ripple spring washer.Described elastic pressuring plate also can be the elastic washer of rubber or rubber and plastic material.The screw thread that can regulate magnetic core and diaphragm distance are arranged between described magnetic core and the coil base.Immovable point between control stem stem and the diaphragm is less than the diameter of control stem stem.
Second scheme: mainly include chip substrate, coil base and coil that covering palte seal is arranged in chip substrate, there is magnetic core in axle center at coil, the fixing flexible sheet of one periphery is arranged at coil with above the magnetic core, be fixed with the control stem stem of belt carcass band of column groove above the flexible sheet center, control stem stem overcoat one ring set, outer wall at ring set has oil groove to communicate with oil duct, there is oilhole to communicate on the described oil groove with the stem stem annular groove on the control stem stem, the characteristics of this programme have a cyclic spring compressing tablet on described diaphragm periphery, ring-shaped pressuring plate is arranged above the elastic pressuring plate, have at least above the ring-shaped pressuring plate uniform 3 with the jackscrew extruding loop plate of oil circuit ring by being threaded, diaphragm and gland fix diaphragm; Oil groove on the described ring set outer wall has left oil groove and two not connected oil grooves of right oil groove, left oil groove communicates with left oil duct on the oil circuit ring, right oil groove communicates with right oil duct on the oil circuit ring, there are being two on the left oil groove on same horizontal plane but left oil groove left side hole and the left oil groove right hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, there are being two on the right oil groove equally on same horizontal plane but right oil groove right hole and the right oil groove left side hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, and hole, a left oil groove left side is corresponding to the vertical center line of ring set unfolded drawing with hole, a right oil groove left side, and the right hole of left oil groove is corresponding to the vertical center line of ring set unfolded drawing with the right hole of right oil groove.The concrete characteristics of this programme also have, and also have wedge between described elastic pressuring plate and diaphragm.Described elastic pressuring plate can be the ripple spring washer.Described elastic pressuring plate also can be the elastic washer of rubber or rubber and plastic material.
The beneficial effect of this programme can be learnt according to the narration to such scheme, owing in the first string, a cyclic spring compressing tablet is arranged on the diaphragm periphery, coil base by with chip substrate on screw thread extruding gland, gland pushes diaphragm and elastic pressuring plate again, fixes diaphragm with this structure; And in second scheme, one cyclic spring compressing tablet is arranged on described diaphragm periphery, ring-shaped pressuring plate is arranged above the elastic pressuring plate, have at least equally distributed 3 to fix diaphragm above the ring-shaped pressuring plate with jackscrew extruding loop plate, diaphragm and the gland of oil circuit ring by being threaded.These two kinds of schemes all are to adopt elastic pressuring plate that the extruding of diaphragm is fixed diaphragm, because elastic pressuring plate has elasticity, therefore, pressure to diaphragm is just relatively more even, add is to adopt screw thread or jackscrew to exert pressure again, so when assembling and debugging,, make assembling and debugging become simple and convenient, can help improving output and reduce cost also than the pressure that is easier to adjust to diaphragm.
Oil groove on the ring set outer wall has left oil groove and two not connected oil grooves of right oil groove, left oil groove communicates with left oil duct on the oil circuit ring, right oil groove communicates with right oil duct on the oil circuit ring, there are being two on the left oil groove on same horizontal plane but left oil groove left side hole and the left oil groove right hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, there are being two on the right oil groove equally on same horizontal plane but right oil groove right hole and the right oil groove left side hole not corresponding mutually again to the vertical center line of ring set unfolded drawing, can communicate with the stem stem annular groove on the control stem stem, and hole, a left oil groove left side is corresponding to the vertical center line of ring set unfolded drawing with hole, a right oil groove left side, and the right hole of left oil groove is corresponding to the vertical center line of ring set unfolded drawing with the right hole of right oil groove.This structure can make left and right oil duct easier of the stem stem annular groove connection on the control stem stem, has reduced the flow resistance of hydraulic oil, has improved the sensitivity of control.
In addition, the screw thread of can regulate magnetic core and diaphragm distance is arranged between magnetic core and coil base, this can adjust the sensitivity of magnetic core to diaphragm control easily.Controlling immovable point between stem stem and the diaphragm in addition less than the diameter of control stem stem, is in order to reduce diaphragm and to drive the control stem stem, and the control stem stem is caused the moment of inclination, strengthens the resistance to motion of control stem stem in ring set.
This shows that the present invention compared with prior art has outstanding substantive distinguishing features and obvious improvement, its implementation result also is conspicuous.
Description of drawings:
Fig. 1 is the part sectional structure schematic representation of first embodiment of the present invention.
Fig. 2 is the part sectional structure schematic representation of second embodiment of the present invention.
Fig. 3 is the expansion schematic representation of Fig. 1, Fig. 2 middle ring sleeve.
1 is cover plate among the figure, and 2 is magnetic core, and 3 is the oil circuit ring, and 4 is left oil duct, 5 is ring set, and 6 is left oil groove, and 7 is hole, a left oil groove left side, and 8 is the right hole of left oil groove, 9 are the control stem stem, and 10 is the stem stem annular groove, and 11 is right oil groove, and 12 is right oil duct, 13 is elastic pressuring plate, and 14 is wedge, and 15 is diaphragm, and 16 is gland, 17 is coil, and 18 is coil base, and 19 is chip substrate, and 20 is hole, a right oil groove left side, 21 is the right hole of right oil groove, and 22 is ring-shaped pressuring plate, and 23 is jackscrew.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, this programme is illustrated below by two embodiments.
By accompanying drawing 1 as can be seen, the electrohydraulic chip electro-hydraulic valve of first embodiment, be coil base (18) and the coil (17) that the lower plane in chip substrate (19) has cover plate (1) to seal, in the axle center of coil (17) magnetic core (2) is arranged, the fixing flexible sheet (15) of one periphery is arranged at coil (17) with above the magnetic core (2), be fixed with the control stem stem (9) of belt carcass band of column groove (10) above flexible sheet (15) center, immovable point between control stem stem (9) and the diaphragm (15) is less than the diameter of control stem stem (9), drive control stem stem (9) when moving up and down to reduce diaphragm (15), control stem stem (9) is caused the moment of inclination.Go up overcoat one ring set (5) at control stem stem (9), outer wall at ring set (5) has oil groove, described oil groove has left oil groove (6) and (11) two not connected oil grooves of right oil groove, the left oil duct (4) that left oil groove (6) and sealing are gone up on the oil circuit ring (3) of end face communicates, right oil groove (11) communicates with right oil duct (12) on the oil circuit ring (3), on left oil groove (6), there are two on same horizontal plane but left oil groove left side hole (7) and the left oil groove right side hole (8) not corresponding mutually again to the vertical center line of ring set (5) unfolded drawing, on right oil groove (11), there are two equally on same horizontal plane but right oil groove right hole (21) and the right oil groove left hole (20) not corresponding mutually again to the vertical center line of ring set (5) unfolded drawing, and left oil groove hole, a left side (7) is corresponding to the vertical center line of ring set (5) unfolded drawing with right oil groove hole, a left side (20), the right hole of left oil groove (8) is corresponding to the vertical center line of ring set (5) unfolded drawing with the right hole of right oil groove (21), this four hole again all can under the control of coil magnetic core (2) and diaphragm (15) with control stem stem (9) on stem stem annular groove (10) communicate.Diaphragm described in this programme (15) has a cyclic spring compressing tablet (13) at it above the periphery, between elastic pressuring plate (13) and diaphragm (15), also has wedge (14), coil base (18) by with chip substrate (19) on screw thread extruding gland (16), gland (16) pushes diaphragm (15) and elastic pressuring plate (13) again, fixes diaphragm (15) with this.Described elastic pressuring plate (13) can be the elastic washer of ripple spring washer or rubber or rubber and plastic material.The screw thread that can regulate magnetic core (2) and diaphragm (15) distance are arranged between described magnetic core (2) and the coil base (18), this can adjust the sensitivity of magnetic core (2) to diaphragm (15) control easily.
By accompanying drawing 2 as can be seen, the electrohydraulic chip of second embodiment only is the fixing structure difference of diaphragm (15) with electro-hydraulic valve and first embodiment difference.This embodiment has a cyclic spring compressing tablet (13) on described diaphragm (15) periphery, ring-shaped pressuring plate (22) is arranged above the elastic pressuring plate (13), have at least above the ring-shaped pressuring plate (22) equally distributed 3 with jackscrew (23) extruding loop plate (22), diaphragm (15) and the gland (16) of oil circuit ring (3) by being threaded, fix diaphragm (15) with this.Described elastic pressuring plate (13) can be the elastic washer of ripple spring washer or rubber or rubber and plastic material equally.Other structure is all identical with first embodiment, so do not give unnecessary details.