CN2851728Y - Hydraulic coupler - Google Patents
Hydraulic coupler Download PDFInfo
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- CN2851728Y CN2851728Y CN 200420063906 CN200420063906U CN2851728Y CN 2851728 Y CN2851728 Y CN 2851728Y CN 200420063906 CN200420063906 CN 200420063906 CN 200420063906 U CN200420063906 U CN 200420063906U CN 2851728 Y CN2851728 Y CN 2851728Y
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Abstract
The utility model relates to a mechanical driving device, more specifically a hydraulic coupler. The aim of the design of the utility model is to realizing repeated forward and backward rotation, low-pressure idle rotation starting and unloading backward rotation running to reduce oil pressure, oil temperature and noise at the time of unloading. The structure of the utility model is that an original mechanism-a double-acting load abandoning vane pump, an actuating mechanism-an outer shell, a control mechanism-a piston type asynchronous safety pressure-regulating valve, a cylinder sleeve type oil absorbing device assembly and working medium oil are combined into one integral body. Oil paths in the double-acting load abandoning vane pump, the outer shell, the piston type asynchronous safety pressure-regulating valve and the cylinder sleeve type oil absorbing device assembly are mutually communicated. A one way valve which controls the forward and backward rotation of the mechanism is installed in the oil absorbing device assembly. The asynchronous safety pressure-regulating valve adopts the pressure difference type structure. A right oil distributing disc of the double-acting load abandoning vane pump is coaxially provided with the oil absorbing device assembly and the asynchronous safety pressure-regulating valve, and the asynchronous safety pressure-regulating valve is arranged in an inner cavity of the oil absorbing device assembly. The utility model which realizes low-pressure unloading and low-pressure starting has the advantages of noiselessness, safety and long service life.
Description
Technical field
The utility model relates to a kind of mechanical transmission, exactly is a kind of Vulcan coupling.
Background technique
The inventor once applied for Vulcan coupling (patent No. ZL98215350.3); be to be driving mechanism that to abandon lotus formula vane pump, actuator be that shell, control mechanism are that asynchronous safe pressure regulator valve, oil header assembly, working medium are combined into an integral body in double-action; internal oil passages communicates; can unload repeatedly, start; but overload protection, but this machine can't be realized counter-rotating operation, oil pressure height during unloading; oily temperature is increased, and noise is bigger.
Summary of the invention
Goal of the invention of the present utility model is to provide a kind of addressing the above problem, and can realize clockwise and anticlockwise repeatedly, and low pressure idle running starts, the Vulcan coupling of unloading.
The technical solution of the utility model is to realize like this, the structure of Vulcan coupling be driving mechanism be double-action to abandon lotus formula vane pump, actuator be that shell, control mechanism are that asynchronous safe pressure regulator valve, oil header assembly, working medium are combined into an integral body, their internal oil passages communicates; Double-action is abandoned lotus formula blade pump structure and is mainly comprised rotor, splined shaft, bearing, a left side, right oil distribution casing, stator, outside framework oil seal, blade, shell and left oil distribution casing are connected to form housing structure with bolt seal, a left side, splined shaft outwards is equipped with successively by the center in space between the right oil distribution casing, rotor, in the radial groove of rotor blade is housed, stator, a stator and a left side, sealing and fixedly connected between the right oil distribution casing with screw, splined shaft stretches out the left oil distribution casing outside, two bearings are housed on the splined shaft of rotor both sides, be contained in a left side respectively, on the right oil distribution casing, in a left side, the left side oil distribution casing of a bearing outside framework oil seal is housed; At the right side of right oil distribution casing concentric oil header assembly and asynchronous safe pressure regulator valve are housed, and asynchronous safe pressure regulator valve is in the inner chamber of oil header assembly, the inner chamber of right side and oil header assembly forms bigger space, in the blind hole of the right flank of asynchronous safe pressure regulator valve Returnning spring is housed.
The right side of shell and splined shaft concentric have seam, have tapped hole on the cylindrical of seam;
The structure of right oil distribution casing is: its left surface outwards has blind hole, garden annular groove, four sections identical curve baths successively by the center and assembles and use through hole, the root of the position of garden annular groove rotor of blade when assembling; Symmetry has two through holes in the annular groove of garden, and the neutral position of four curve baths has a through hole respectively, and the through hole in each curve bath all has the seam concave surface on the right flank of right oil distribution casing; There is an end face seam in the outside of through hole in the annular groove of the right flank garden of right oil distribution casing; There is tapped hole in the outside of seam;
The structure of the structure oil header assembly of oil header assembly mainly comprises fuel sucking pipe, connection block, bearing, outside framework oil seal, overcoat, oilhole, O RunddichtringO, check valve body, bearing pin; The sectional shape of overcoat is an opening framework left, left end screw and the right side fixed seal connection of right oil distribution casing, outside framework oil seal and bearing are housed in its right side center hole from left to right successively, and the left side of connection block is stretched in the interior ring of bearing, and fuel sucking pipe is vertically fixed on the external diameter of connection block; The last symmetry of the housing left end cylindrical of overcoat has four radial holes and four axial step through holes, and radial hole passes through mutually with the axial step through hole, valve body is housed in each radial hole respectively, spool, spring, bearing pin are housed in the valve body respectively, the O RunddichtringO is housed between valve body and radial hole, and the one-way valve that each valve body and spool are formed communicates respectively with the framework inner chamber of overcoat; In each axial step through hole of the right side of valve body valve body is housed respectively, spool, spring, bearing pin are housed in the valve body respectively, valve body is equipped with backbone sealing ring with outer inner room; Have two through holes on the right side housing of overcoat, it is oilhole that housing inside, right side has the intersection through hole, and communicates with its right side center hole, and the oilhole outer end connects oil pipe respectively, and the other end of oil pipe is connected with valve seal with nut respectively.
The valve body of asynchronous safe pressure regulator valve is a frustoconic shape, has blind hole on the round table surface, and having two through holes at the side of round platform and radial center line parallel is spool bore, regulator hole; Voltage regulation screw, Returnning spring, mitre velve, positioning seat are housed in the regulator hole from left to right successively, the O RunddichtringO is housed between voltage regulation screw and positioning seat and valve body; Have the tapped hole that communicates with regulator hole on the round table surface of valve body, retaining screw is housed is connected, also have the oilhole that unloads that communicates with regulator hole with corresponding part, regulator hole middle part on the round table surface of valve body with positioning seat; Positioning seat, spool, Returnning spring, positioning seat are housed in the spool bore from left to right successively, the O RunddichtringO is housed respectively between positioning seat and valve body, have two tapped holes that communicate with spool bore on the round table surface of valve body, retaining screw is housed also to be connected with two positioning seats respectively, also have the oilhole that unloads that communicates with spool bore with corresponding part, spool bore middle part on the round table surface of valve body, on another round table surface of the left side of rushing down oilhole, valve body, have the oil inlet hole that communicates with spool bore; In spool bore, have through hole between the middle part of positioning seat in the left side of right-hand member positioning seat, the regulator hole on the valve body.
Characteristics of the present utility model are: volume is little, and long service life because control mechanism adopts the oil header assembly of asynchronous safe pressure regulator valve in the form of piston and cylinder sleeve type, can realize clockwise and anticlockwise repeatedly, and low pressure idle running starts, unloading, and noise free is safe and reliable.
Description of drawings
Fig. 1 is the structural drawing of Vulcan coupling;
Among the figure, 1 abandons lotus formula vane pump for double-action, and 2 is shell, and 3 is asynchronous safe pressure regulator valve, and 4 is the oil header assembly, and 5 is seam, and 6 is spring, and 7 is oil, and 8 is bolt, and 19 is screw, and 76 is the O RunddichtringO;
Fig. 2 abandons the structural drawing of lotus formula vane pump 1 for double-action;
Among the figure, 9 is rotor, and 10 is splined shaft, and 11,13 is bearing, and 12 is outside framework oil seal, and 15 is stator, and 16 is right oil distribution casing, and 17 is blade, and 18 is screw, and 19 is tapped hole, and 20 is the garden annular groove;
Fig. 3 abandons the fundamental diagram of lotus formula vane pump 1 for double-action; 29 is through hole;
Fig. 4 is the left view of right oil distribution casing 16;
Among the figure, 23 is blind hole, and 24 is the garden annular groove, and 25 is curve bath, and 26,27 is through hole;
Fig. 5 is the A-A sectional view of right oil distribution casing; 21 is seam, and 22 is tapped hole;
Fig. 6 is the structural drawing of oil header assembly 4;
Among the figure, 32 is fuel sucking pipe, and 33 is connection block, 34 is bearing, and 36 is outside framework oil seal, and 37 is overcoat, 38 is oil pipe, and 40 is oilhole, and 42 is nut, 41,43 is spring, and 45 is backbone sealing ring, and 35,46 is nonreturn valve core, 47 is fixing bolt, 44,48 is check valve body, and 28,39,49 is the O RunddichtringO, and 30,31 is bearing pin;
Fig. 7 is the right elevation of oil header assembly 4; 50 is screw;
Fig. 8 is the appearance assumption diagram of asynchronous safe pressure regulator valve 3; 74 is valve body;
Among the figure, 51 is blind hole, and 52,53 for unloading oilhole, and 54 is oil inlet hole, and 55 is spool bore, and 56 is regulator hole;
Fig. 9 is the B-B sectional view of asynchronous safe pressure regulator valve 3;
Figure 10 is the C-C revolved sectional view of asynchronous safe pressure regulator valve 3;
Among the figure, 57,63,66 is positioning seat, and 58,64,65 is retaining screw, and 59,62,67,68,72 is the O RunddichtringO, and 60 is spool, and 61,70 is Returnning spring, and 69 is mitre velve, and 71 is voltage regulation screw, and 75 is through hole.
Embodiment
As shown in Figure 1, 2, 3, the structure of Vulcan coupling be driving mechanism be double-action abandon lotus formula vane pump 1, actuator be shell 2, control mechanism be asynchronous safe pressure regulator valve 3, oil header assembly 4, working medium promptly oil 7 be combined into an integral body, their internal oil passages communicates; The structure that lotus formula vane pump 1 is abandoned in double-action mainly comprises rotor 9, splined shaft 10, bearing 11,13, a left side, right oil distribution casing 14,16, stator 15, outside framework oil seal 12, blade 17, shell 2 and the left oil distribution casing 14 usefulness bolts 8 formation housing structure that is tightly connected, a left side, right oil distribution casing 14, splined shaft 10 outwards is equipped with successively by the center in space between 16, rotor 9, blade 17 is housed in the radial groove of rotor 9, stator 15, a stator 15 and a left side, right oil distribution casing 14, sealing and fixedly connected between 16 with screw 18, splined shaft 10 stretches out left oil distribution casing 14 outsides, on the rotor 9 both sides splined shafts 10 two bearings are housed, be contained in a left side respectively, on the right oil distribution casing 14, in a left side, the left side oil distribution casing of 16, one bearings outside framework oil seal 12 is housed; At the right side of right oil distribution casing 16 concentric oil header assembly 4 and asynchronous safe pressure regulator valve 3 are housed, and asynchronous safe pressure regulator valve 3 is in the inner chamber of oil header assembly 4, the inner chamber of right side and oil header assembly 4 forms bigger space, in the blind hole 51 of the right flank of asynchronous safe pressure regulator valve 3 Returnning spring 6 is housed.
As shown in Figure 1, the right side of shell 2 and splined shaft 10 concentrics have seam 5, have tapped hole 19 on the cylindrical of seam 5.
The structure of right oil distribution casing 16 is shown in Fig. 4,5,6: its left surface outwards has blind hole 23, garden annular groove 24, four sections identical curve baths 25 and assembling with through hole 26, the root of the position of garden annular groove 24 rotor of blade 17 when assembling successively by the center; The neutral position that annular groove 24 interior symmetries in garden have 29, four curve baths 25 of two through holes has a through hole 27 respectively, and each through hole 27 all has the seam concave surface on the right flank of right oil distribution casing 16; There is an end in the outside at the right flank through hole 27 of right oil distribution casing 16 and seam 21; There is tapped hole 22 in the outside of seam 21;
As shown in Figure 2, also have a garden annular groove with garden annular groove 24 corresponding sections of right oil distribution casing 16 on the right flank of left oil distribution casing 14.
Shown in Fig. 6,7, the structure of oil header assembly 4 mainly comprises fuel sucking pipe 32, connection block 33, bearing 34, outside framework oil seal 36, overcoat 37, oilhole 40, O RunddichtringO 28,39,49, check valve body 44,48, bearing pin 30,31; The sectional shape of overcoat 37 is an opening framework left, left end screw 50 and right oil distribution casing 16 right side fixed seal connections, outside framework oil seal 36, bearing 34 are housed in its right side center hole from left to right successively, the left side of connection block 33 is stretched in the interior ring of bearing 34, and fuel sucking pipe 32 is vertically fixed on the external diameter of connection block 33; The last symmetry of the housing left end cylindrical of overcoat 37 has four radial holes and four axial step through holes, and radial hole passes through mutually with the axial step through hole, valve body 48 is housed in each radial hole respectively, spool 35, spring 41, bearing pin 30 are housed in the valve body 48 respectively, O RunddichtringO 28,49 is housed between valve body 48 and radial hole, and the one-way valve that each valve body 48 and spool 35 are formed communicates respectively with the framework inner chamber of overcoat 37; In each axial step through hole of the right side of valve body 48 valve body 44 is housed respectively, valve body 44 is equipped with spool 46, spring 43, bearing pin 31 respectively, and valve body 44 is equipped with backbone sealing ring 45 with outer inner room; Have two through holes 73 on the right side housing of overcoat 37, it is oilhole 40 that housing inside has the intersection through hole, and communicates with its right side center hole, and oilhole 40 outer ends connect oil pipe 38 respectively, and the other end of each oil pipe 38 is tightly connected with nut 42 and valve body 44 respectively.
Shown in Fig. 8,9,10, the valve body 74 of asynchronous safe pressure regulator valve 3 is a frustoconic shape, has blind hole 51 on the round table surface, and having two through holes at the side of round platform and radial center line parallel is spool bore 55, regulator hole 56; Voltage regulation screw 71, Returnning spring 70, mitre velve 69, positioning seat 66 are housed in the regulator hole 56 from left to right successively, and 74 of voltage regulation screw 71 and positioning seat 66 and valve bodies are equipped with O RunddichtringO 72,68,67; The left part of positioning seat 66 has the phase perforation, and upwards is through hole in regulator hole 56 footpaths; Have the tapped hole that communicates with regulator hole 56 on the round table surface of valve body 74, retaining screw 65 be housed be connected with positioning seat 66, on the round table surface of valve body 74 with corresponding part, regulator hole 56 middle part also have communicate with regulator hole 56 unload oilhole 52; Positioning seat 57, spool 60, Returnning spring 61, positioning seat 63 are housed in the spool bore 55 from left to right successively, and 74 of positioning seat 57,63 and valve bodies are equipped with O RunddichtringO 59,62 respectively; Spool 60 middle parts axially and radially have the hole that connects; Have two tapped holes that communicate with spool bore 55 on the round table surface of valve body 73, retaining screw 58,64 is housed also to be connected with positioning seat 57,63 respectively, on the round table surface of valve body 74 with corresponding part, spool bore 55 middle part also have communicate with spool bore 55 unload oilhole 53, rush down on another round table surface of left side, valve body 74 of oilhole 53 and have the oil inlet hole 54 that communicates with spool bore 55; Between the middle part of the left side of positioning seat 63, positioning seat 66, have through hole 75 on the valve body 74.
As shown in Figure 1, when the upper cavity of fluid 7 is abandoned the sealing assembling of lotus formula vane pump 1 and shell 2 in double-action, can produce pressurized air, meet the theory that the liquid in the hydraulic transmission must communicate with atmosphere.Have bearing 34 to cooperate between the right side center hole because of the left end of the connection block 33 that is fixed together with fuel sucking pipe 32 and overcoat 37, so no matter under any circumstance fuel sucking pipe 32 always is immersed in oily 7 vertically downward.
During work, as shown in Figure 3, when splined shaft 10 drives rotor 9 rotations, blade 17 skids off at action of centrifugal force lower edge radial groove, and air is discharged in the housing 2 by check valve body radially relative on the oil header assembly 4 48, air pressure is greater than pressure in the pump in the housing 2, and oil header 4 is started working.Shown in Fig. 1,3,4,6, after pressure is set up, back down nonreturn valve core radially relative on the oil header assembly 4 35 again when crossing oil and enter asynchronous safe pressure regulator valve 3 because of the through hole on the right oil distribution casing 16 27, through hole 29 on right oil distribution casing 16 enters circular groove 24, so blade 17 roots also have pressure, pressure abuts against blade 17 on stator 15 internal surfaces, blade 17 just is separated into the Seal cage that some volumes do not wait with stator 15 inner chambers, and the oil pressure P2 in the pumping cavity in oil pressure P 1 and the circular groove 24 equates P1=P2.
Shown in Fig. 6,7, oil 7 backs down four nonreturn valve cores 46 through fuel sucking pipe 32, connection block 33, oilhole 40, oil pipe 38, arrive on the right oil distribution casing 16 with curve bath 25 that through hole 27 communicates in.
As Fig. 4, four sections identical curve baths are oil sucting cavity for two sections, two sections is pumping cavity, the pressure oil that enters into oil sucting cavity rotates with blade 17 through rotor 9 and takes pumping cavity to, and via through holes 27 backs down radially relative one-way valve 35, enter the left end of asynchronous safe pressure regulator valve 3, pressure oil promote asynchronous safe pressure regulator valve 3 to the right pressure spring 6 near on the right side to overcoat 37, and by 76 sealings of the circle of the O shape on the valve, simultaneously the space of part oil between asynchronous safe pressure regulator valve 3 external diameters and hole wall 73 flowed back in the casing through the hole, abut against on the right side in the cover and only need 3 to 5 seconds from starting to asynchronous safe pressure regulator valve 3, at this moment pressure oil has only and flows back to casing on a small quantity, and produce certain pressure P 1 because P1=P2 in the lotus formula vane pump 1 is abandoned in double-action at pressure chamber, so rotor 9 drives 2 rotations of coupler main body cover by blade 17 with the pressure oil medium transmitting torque of working, and utilizes hole 19 connecting band dynamic loads.
The process of pressurize, shown in Fig. 8,9,10, when pressure is lower than the normal rotary work of rated pressure, the pressure oil of system is divided into two-way after entering the I chamber by the oil inlet hole 54 of asynchronous safe pressure regulator valve 3, one tunnel heart hole in spool 60 enters into the II chamber, and its hydraulic coupling P II acts on the left side of spool 60; Another path damping hole is to the III chamber, and its fluid power PIII reacts on the right-hand member of spool 60 together with the elastic force one of little spring 61.The fluid in III chamber is communicated with the IV chamber, III chamber fluid again through the damping hole of positioning seat 66 to the V chamber, its fluid power PV heads on the tapering of mitre velve 69, the another side of mitre velve 69 has the spring 70 of a pressure regulation.
Therefore intrasystem pressure is lower than rated pressure oil inlet hole 54 and not connection of unloading hole 53 time, so spool 60 is in balance, coupler shell 2 is in rotation drive loaded work piece under the balance packing state at spool 60.Coupler shell 2 can not continue rotation in case work is obstructed, motor drives rotor 9 is rotated further, cause when entering pressure oil that double-action abandons I chamber in the lotus formula vane pump 1 greater than specified pressure, V cavity pressure oil PV backs down mitre velve 69, and the pressure in V-IV-III chamber reduces successively immediately.Because the effect of damping hole, I chamber fluid has little time the III chamber is replenished, and III chamber oil pressure PIII just reduces, spring 61 elastic force are very weak, so spool 60 is in non-equilibrium state, so spool 60 moves to right, oil inlet hole 54 is connected with unloading oilhole 53, thereby played the overflow effect, shell 2 stops operating.Because spool 60 selects differential pressure principle for use, abandon the pulsation that lotus formula vane pump 1 is produced so can also absorb double-action during big flow, this moment, vane pump 1 was the low pressure unloading.
When fault is got rid of, system's internal pressure is lower than rated pressure, mitre velve 69 returns to the origin-location heavily again under the effect of spring 70, spool 60 right-hand member pressure add the elastic force of upper spring 61 with the left end pressure balance, with oil inlet hole 54 with unload oilhole 53 and cut off, stop oil spilling, coupler shell 2 continues to drive loaded work piece again.
During the counter-rotating running, oil suction chamber and pumping cavity change 90 ° of directions such as preceding repetition.
Claims (5)
1, a kind of Vulcan coupling, its structure be driving mechanism be double-action abandon lotus formula vane pump (1), actuator be shell (2), control mechanism be asynchronous safe pressure regulator valve (3), oil header assembly (4), working medium promptly oil (7) be combined into an integral body, their internal oil passages communicates; The structure that lotus formula vane pump (1) is abandoned in double-action mainly comprises rotor (9), splined shaft (10), bearing (11), (13), a left side, right oil distribution casing (14), (16), stator (15), outside framework oil seal (12), blade (17), shell (2) and left oil distribution casing (14) are with bolt (8) the formation housing structure that is tightly connected, a left side, right oil distribution casing (14), (16) splined shaft (10) outwards is equipped with successively by the center in the space between, rotor (9), blade (17) is housed in the radial groove of rotor (9), stator (15), a stator (15) and a left side, right oil distribution casing (14), (16) sealing and fixedly connected between with screw (18), splined shaft (10) stretches out left oil distribution casing (14) outside, two bearings are housed on rotor (9) the both sides splined shafts (10), be contained in a left side respectively, on the right oil distribution casing (14), (16), in the oil distribution casing of a left side, the left side of a bearing outside framework oil seal (12) is housed; It is characterized in that: the right side concentric at right oil distribution casing (16) is equipped with oil header assembly (4) and asynchronous safe pressure regulator valve (3), and asynchronous safe pressure regulator valve (3) is in the inner chamber of oil header assembly (4), the inner chamber of right side and oil header assembly (4) forms bigger space, in the blind hole (51) of the right flank of asynchronous safe pressure regulator valve (3) Returnning spring (6) is housed.
2, Vulcan coupling according to claim 1 is characterized in that: the right side of described shell (2) and splined shaft (10) concentric have seam (5), have tapped hole (19) on the cylindrical of seam (5).
3, Vulcan coupling according to claim 1, it is characterized in that: the structure of described right oil distribution casing (16) is, its left surface outwards has blind hole (23), a garden annular groove (24), four sections identical curve baths (25) and assembling through hole (26) successively by the center, the root of the position of garden annular groove (24) rotor of blade (17) when assembling; The interior symmetry of garden annular groove (24) has two through holes (29), and the neutral position of four curve baths (25) has a through hole (27) respectively, and each through hole (27) all has the seam concave surface on the right flank of right oil distribution casing (16); There is an end face seam (21) in the outside at the right flank through hole (27) of right oil distribution casing (16); There is tapped hole (22) in the outside of seam (21);
4, Vulcan coupling according to claim 1 is characterized in that: the structure of described oil header assembly (4) mainly comprises fuel sucking pipe (32), connection block (33), bearing (34), outside framework oil seal (36), overcoat (37), oilhole (40), O RunddichtringO (28), (39), (49), check valve body (44), (48), bearing pin (30), (31); The sectional shape of overcoat (37) is an opening framework left, left end screw (50) and right oil distribution casing (16) right side fixed seal connection, outside framework oil seal (36), bearing (34) are housed in its right side center hole from left to right successively, the left side of connection block (33) is stretched in the interior ring of bearing (34), and fuel sucking pipe (32) is vertically fixed on the external diameter of connection block (33); The last symmetry of the housing left end cylindrical of overcoat (37) has four radial holes and four axial step through holes, and radial hole passes through mutually with the axial step through hole, valve body (48) is housed in each radial hole respectively, spool (35), spring (41), bearing pin (30) are housed in the valve body (48) respectively, O RunddichtringO (28), (49) are housed between valve body (48) and radial hole, and the one-way valve that each valve body (48) and spool (35) are formed communicates respectively with the framework inner chamber of overcoat (37); In each axial step through hole of the right side of valve body (48) valve body (44) is housed respectively, valve body (44) is equipped with spool (46), spring (43), bearing pin (31) respectively, and valve body (44) is equipped with backbone sealing ring (45) with outer inner room; Have two through holes (73) on the right side housing of overcoat (37), it is oilhole (40) that housing inside has the intersection through hole, and communicate with its right side center hole, oilhole (40) outer end connects oil pipe (38) respectively, and the other end of each oil pipe (38) uses nut (42) and valve body (44) to be tightly connected respectively.
5, Vulcan coupling according to claim 1, it is characterized in that: the valve body (74) of described asynchronous safe pressure regulator valve (3) is frustoconic shape, have blind hole (51) on the round table surface, having two through holes at the side of round platform and radial center line parallel is spool bore (55), regulator hole (56); Voltage regulation screw (71), Returnning spring (70), mitre velve (69), positioning seat (66) are housed in the regulator hole (56) from left to right successively, between voltage regulation screw (71) and positioning seat (66) and valve body (74) O RunddichtringO (72), (68), (67) are housed; The left part of positioning seat (66) has the phase perforation, and upwards is through hole in regulator hole (56) footpath; Have the tapped hole that communicates with regulator hole (56) on the round table surface of valve body (74), retaining screw (65) is housed is connected with positioning seat (66), on the round table surface of valve body (74) with corresponding part, regulator hole (56) middle part also have communicate with regulator hole (56) unload oilhole (52); Positioning seat (57), spool (60), Returnning spring (61), positioning seat (63) are housed in the spool bore (55) from left to right successively, between positioning seat (57), (63) and valve body (74) O RunddichtringO (59), (62) are housed respectively; Spool (60) middle part axially and radially has the hole that connects; Have two tapped holes that communicate with spool bore (55) on the round table surface of valve body (74), retaining screw (58), (64) are housed and are connected with positioning seat (57), (63) respectively, on the round table surface of valve body (74) with corresponding part, spool bore (55) middle part also have communicate with spool bore (55) unload oilhole (53), rush down on another round table surface of left side, valve body (74) of oilhole (53) and have the oil inlet hole (54) that communicates with spool bore (55); Have through hole (75) between the middle part of the last left side of valve body (74), positioning seat (66) in positioning seat (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063906 CN2851728Y (en) | 2004-12-02 | 2004-12-02 | Hydraulic coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063906 CN2851728Y (en) | 2004-12-02 | 2004-12-02 | Hydraulic coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851728Y true CN2851728Y (en) | 2006-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063906 Expired - Fee Related CN2851728Y (en) | 2004-12-02 | 2004-12-02 | Hydraulic coupler |
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| Country | Link |
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| CN (1) | CN2851728Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555256A (en) * | 2011-12-22 | 2012-07-11 | 中广核中电能源服务（深圳）有限公司 | Hydraulic machine system and method for releasing load thereof |
-
2004
- 2004-12-02 CN CN 200420063906 patent/CN2851728Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555256A (en) * | 2011-12-22 | 2012-07-11 | 中广核中电能源服务（深圳）有限公司 | Hydraulic machine system and method for releasing load thereof |
| CN102555256B (en) * | 2011-12-22 | 2014-07-30 | 中广核中电能源服务（深圳）有限公司 | Hydraulic machine system and method for releasing load thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Changhua Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20100104 |