CN105070547A - Hydraulic spring operation mechanism for high-voltage breaker - Google Patents
Hydraulic spring operation mechanism for high-voltage breaker Download PDFInfo
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- CN105070547A CN105070547A CN201510463212.8A CN201510463212A CN105070547A CN 105070547 A CN105070547 A CN 105070547A CN 201510463212 A CN201510463212 A CN 201510463212A CN 105070547 A CN105070547 A CN 105070547A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 238000007789 sealing Methods 0.000 claims description 36
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 25
- 238000012856 packing Methods 0.000 claims description 23
- 238000004146 energy storage Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 239000002828 fuel tank Substances 0.000 claims description 14
- 208000002925 dental caries Diseases 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 69
- 239000010720 hydraulic oil Substances 0.000 description 9
- 238000002955 isolation Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 239000010724 circulating oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
- H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
- H01H33/34—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator hydraulic
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- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses a hydraulic spring operation mechanism for a high-voltage breaker. An integrated hydraulic valve control system is employed, an opening-closing first-order valve, a master control valve and the like are integrated in a cylinder seat of a main body working cylinder, and the center piston hydraulic cavity of the main body working cylinder and a hydraulic control working chamber form a same-cavity structural form; and the lower end of the main body working cylinder and the cylinder seat are installed by use of a closely connected mode, and as a result, an integrated structure is formed, so that the reliability and the stability are improved. The problems of poor reliability, short mechanical life and large manufacturing difficulties of a conventional hydraulic spring operation mechanism in large-power power output operation are solved.
Description
Technical field
The present invention relates to a kind of primary cut-out hydraulic pressure spring operating mechanism.
Background technology
Operating mechanism is the main component devices of primary cut-out, and the separating brake of primary cut-out is rely on the control realization of operating mechanism with closing a floodgate.Hydraulic pressure spring operating mechanism has that operating energy is powerful, hydraulic oil self lubricating system without wearing and tearing, Hydraulic Elements quality is light and reaction speed is fast, noise is low, reliable in action, by features such as the reliable controlling of hydraulic system and powerful Power output.The invention provides a kind of primary cut-out hydraulic pressure spring operating mechanism, solve the poor reliability of hydraulic pressure spring operating mechanism in high-power Power output operation, the problem that mechanical endurance is low and manufacture difficulty is large.
Summary of the invention
The object of the present invention is to provide a kind of primary cut-out hydraulic pressure spring operating mechanism, solve that to manufacture difficulty of processing large, mechanical endurance low and poor reliability problem.
The present invention adopts following technical scheme:
A kind of primary cut-out hydraulic pressure spring operating mechanism, comprise energy storage fuel tank (68), working chamber piston rod (69), working cylinder (66), described working cylinder (66) inside is working chamber (73) setting up and down, described working cylinder (66) top arranges described energy storage fuel tank (68), described working chamber piston rod (69) be arranged in described working chamber (73) slide up and down connection and its upper end is positioned at described energy storage fuel tank (68), the opening sealing of described working cylinder (66) upper end, described working chamber (73) lower ending opening is also closed by described working chamber (73) bottom connecting fluid press operation control module (67),
Described hydraulic operation control module (67) comprises cylinder sleeve (1), cylinder seat (7), master control spool (4), electromagnetically operated valve (42), described cylinder seat (7) below is pedestal, described pedestal upper surface vertically arranges column (40), described column (40) top is provided with cylinder sleeve (1), described cylinder sleeve (1) bottom surface and described column (40) end face tabling also form the casing string (41) be fixed as one, described casing string (41) inserts the inner chamber of described working chamber (73) lower end and is closed by described working chamber (73) lower ending opening, described working cylinder (66) lower surface and described pedestal upper surface offset fixing, described casing string (41) outer wall matches with described working chamber (73) inwall, described casing string (41) inside is the main control valve signal cavity (36) vertically arranged, described main control valve signal cavity (36) top is provided with opening and is communicated with described working chamber (73), extend to the interior after-contraction of described column (40) bottom it and form bottom platform (43), master control spool (4) described in described main control valve signal cavity (36) inner sleeve sliding up and down with it is connected, and the side of described pedestal is provided with described electromagnetically operated valve (42),
In the wall of described working cylinder (66), two elongate tubular cavitys are vertically set by upper surface to bottom surface and are respectively high-pressure oil duct (79), normal pressure oil duct (70) is positioned at described working chamber (73) both sides, described high-pressure oil duct (79), normal pressure oil duct (70) lower ending opening is all closed, described high-pressure oil duct (79) top connects energy-storage liquid pressure oil pump, described normal pressure oil duct (70) top is communicated with described energy storage fuel tank (68), described working chamber piston rod (69) lower end is fixed with piston rod packing ring (74), described piston rod packing ring (74) is connected with the upper lower piston of described working chamber (73), described piston rod packing ring (74) splits described working chamber (73) for upper and lower two intervals, high-pressure oil duct (79) described in interval more than described piston rod packing ring (74) is communicated with, described piston rod packing ring (74) interval below moves up and down high-pressure oil duct (79) described in connection or normal pressure oil duct (70) according to the control master control spool (4) of hydraulic operation control module (67),
The cylinder that described master control spool (4) is inner hollow, described master control spool (4) top is top guide ring (61), described top guide ring (61) coordinates with described main control valve signal cavity (36) and is slidably connected, described master control spool (4) top is provided with normal pressure outage (44) and is positioned at below, described top guide ring (61), bottom is provided with high pressure outage (47), and described outage is all communicated with described master control spool (4) outside and internal cavities;
Described casing string (41) is horizontally arranged with normal pressure oilhole (52) from top to bottom respectively, high pressure oilhole (55), its outside is communicated with described main control valve signal cavity (36), described normal pressure oilhole (52) is communicated with the normal pressure oil pocket (76) of described normal pressure oil duct (70) by horizontally set, described high pressure oilhole (55) by the high-voltage oil cavity (81) of horizontally set and described high-pressure oil duct (79) be communicated with, slide in the described main control valve signal cavity (36) of described top guide ring (61) more than described normal pressure oilhole (52), described master control spool (4) is arranged sealing ring, sealing Glais ring (5) is slided with coordinating in the described main control valve signal cavity (36) between high pressure oilhole (55) described normal pressure oilhole (52), blocking-up normal pressure oilhole (52) is communicated with high pressure oilhole (55),
The corresponding described normal pressure oilhole (52) of described cylinder sleeve (1), toroidal cavity four (27) and toroidal cavity five (28) is formed respectively between described high pressure oilhole (55) region and described master control spool (4), described master control spool (4) is in described high pressure outage (47) upper end, described normal pressure outage (44) lower end is respectively arranged with lower end annular sealed step (102) of evagination, upper end annular sealed step (101), it is up spacing to described master control spool (4) that the upper end of described upper end annular sealed step (101) coordinates lower end to stretch into described toroidal cavity four (27) with main control valve signal cavity (36), it is descending spacing to described master control spool (4) that the lower end of described lower end ring-shaped step (102) coordinates upper end to stretch into described toroidal cavity five (28) with main control valve signal cavity (36), described master control spool (4) slides up and down at this interval range,
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), and described counterbore (25) below arranges coaxial main control valve signal chamber signal oilhole (37) and is interconnected;
When described master control spool (4) drops to bottom, described normal pressure outage (44) is communicated with described normal pressure oilhole (52), described high pressure oilhole (55) and described high pressure outage (47) are mutually closed and are isolated, described working chamber piston rod (69) is descending, and described piston rod packing ring (74) comes downwards to the upper shed of described main control valve signal cavity (36);
When described master control spool (4) is lifted, described normal pressure outage (44) and described normal pressure oilhole (52) are mutually closed and are isolated, described high pressure oilhole (55) is communicated with described high pressure outage (47), the upper shed of described main control valve signal cavity (36) is communicated with described working chamber (73), and described working chamber piston rod (69) is up;
The lifting of described master control spool (4) has been come by the valve body in pedestal described in described solenoid control and hydraulic circuit
Described valve body comprises combined floodgate one-step valve (20), separating brake one-step valve (23); Two horizontal elongated hole cavitys setting up and down in described pedestal, the built-in described combined floodgate one-step valve (20) of top elongated hole cavity, the built-in described separating brake one-step valve (23) of below elongated hole cavity, one end of described two elongated hole cavity homonymies is closed, the other end is openend, and described electromagnetically operated valve (42) is arranged on its openend;
Described combined floodgate one-step valve (20) comprises combined floodgate valve seat stifled (30), combined floodgate upper valve base (31), close a floodgate middle valve seat (13), combined floodgate lower valve base (11) and in-built spring (12) thereof and locking steel ball (9), combined floodgate upper valve rod (16); elongated hole cavities open end to the blind end of described top fixedly mounts combined floodgate valve seat stifled (30) successively, combined floodgate upper valve base (31), in the middle of closing a floodgate valve seat (13) form combined floodgate valve seat group and and form spring between blind end and assemble cavity one, described combined floodgate valve seat blocks up (30), combined floodgate upper valve base (31), in the middle of closing a floodgate, close all separately by independent the partition by described elongated hole cavity for valve seat (13), be mated and be slidably connected in the cavity that described combined floodgate upper valve rod (16) crosses described combined floodgate valve seat group switching centre, the execution bar (15) of the one end and described electromagnetically operated valve of stretching out described elongated hole cavities open end links, described combined floodgate lower valve base (11) is arranged in described spring assembling cavity one, spring cavity one (14) is horizontally arranged with in described combined floodgate lower valve base (11), described locking steel ball (9) and described spring (12) are horizontally set in described spring cavity one (14), described locking steel ball (9) offsets with the extending port of described combined floodgate upper valve rod (16) in described spring (12) and described middle valve seat (13) of closing a floodgate respectively, described locking steel ball (9) closes this extending port, described combined floodgate lower valve base (11) two ends respectively with the blind end of described elongated hole cavity and described combined floodgate in the middle of valve seat (13) offset and close described spring cavity one (14), toroidal cavity one (16) is formed along between described combined floodgate lower valve base (11) outer rim and described elongated hole cavity, described toroidal cavity one (16) two ends isolate respectively to close and form independently cavity being communicated with described spring cavity one (14), toroidal cavity two (19) is formed between valve seat (13) outer rim and described elongated hole cavity in the middle of described combined floodgate, its toroidal cavity two (19) two ends isolate respectively to close and form independently cavity being communicated with described main control valve signal chamber signal oilhole (37),
Arrange high-pressure oil passage (35) two ends in the described column (40) of described cylinder seat (7) to be communicated with described high-pressure oil duct (79) and described toroidal cavity one (16) respectively, described toroidal cavity one (16) is communicated with described spring cavity one (14), one section of described combined floodgate upper valve rod (16) and described the combined floodgate between middle valve seat (13) inner chamber of the close described locking steel ball (9) that described middle valve seat (13) is inner form space, described toroidal cavity two (19) is communicated with this space, when described combined floodgate one-step valve (20) described locking steel ball (9) by described combined floodgate upper valve rod (16) stretch out push open time, formed from described high-pressure oil duct (79) to high-pressure oil passage (35), described spring cavity one (14), described toroidal cavity two (19), the oil duct that main control valve signal chamber signal oilhole (37) is communicated with,
Described separating brake one-step valve (23) comprises point gate valve stifled (103), separating brake upper valve base (21), separating brake lower valve base (18), spring (12) and locking steel ball (9), separating brake upper valve rod (24), fixing point gate valve stifled (103) is installed between described below elongated hole cavities open end and the blind end described in it successively, separating brake upper valve base (21) forms a point gate valve seat group, form spring between described separating brake upper valve base (21) and described elongated hole cavity blind end and assemble cavity two, described point of gate valve stifled (103), the elongated hole cavity of described below all cuts off and closes by separating brake upper valve base (21), described separating brake lower valve base (18) is placed in described spring assembling cavity two, described separating brake lower valve base (18) two ends offset with the blind end of described below elongated hole cavity and described separating brake upper valve base (21) respectively, described separating brake upper valve rod (24) is slidably matched along described elongated hole cavity direction through described point of gate valve seat group inner chamber, another of the described separating brake upper valve rod (24) of stretching out described elongated hole cavities open end side and described electromagnetically operated valve performs bar (15) and links, described locking steel ball (9) is placed in described spring (12) in the spring cavity two of described separating brake lower valve base (18) horizontally set respectively, described locking steel ball (9) two ends offset with described separating brake upper valve rod (24) extending port of described separating brake lower valve base (18) and described spring (12) and close this extending port respectively, described separating brake lower valve base (18) outer rim and described elongated hole cavity form ring cavity three (22), described ring cavity three (22) two ends isolating seal forms individual cavities, described ring cavity three (22) is communicated with described spring cavity two, described ring cavity three (22), spring cavity two are communicated with described toroidal cavity two (19),
The described locking steel ball (9) of described combined floodgate one-step valve (20) is shunk rear closed by described combined floodgate upper valve rod (16), simultaneously described separating brake upper valve rod (24) pushes described locking steel ball (9) described in it open, annular gap is formed between the outer rim of one section of separating brake upper valve rod (24) of the close described locking steel ball (9) in described separating brake upper valve base (21) and described separating brake upper valve base (21), this gap is by being communicated with normal pressure oilhole (33) one end vertically arranged in cylinder seat (7), described normal pressure oilhole (33) is communicated with described normal pressure oil duct (70) straight up, form described normal pressure oil duct (70) and normal pressure oilhole (33), described gap, described toroidal cavity two (19), the oil duct that described main control valve signal chamber signal oilhole (37) is communicated with, the described locking steel ball (9) of described combined floodgate one-step valve (20) cuts off described high-pressure oil duct (79) and described ring cavity two (19),
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), described counterbore (25) is communicated with described toroidal cavity two (19) by coaxial main control valve signal chamber signal oilhole (37), described master control spool (4) lower end is taper, this tapered bottom end is vertically provided with valve rod hourglass head (49), described valve rod hourglass head (49) is inserted in described counterbore (25), and slide up and down with described counterbore (25) and be tightly connected, upper described counterbore (25) side of described platform (43) is provided with main control valve signal controlling chamber high pressure and keeps oilhole (32) to be communicated with described toroidal cavity two (19), under the walking to of described master control spool (4) in limited time, oil back chamber (26) is defined with described main control valve signal cavity (36), described high pressure outage (47) and described oil back chamber (26), described main control valve signal controlling chamber high pressure keeps oilhole (32), described toroidal cavity two (19) is communicated with.
Described valve rod hourglass head (49) stage casing radial direction is provided with depression (50), when described master control spool (4) offsets with described column (40) top, corresponding described depression (50) position, counterbore (25) inner both sides of described cylinder seat (7) is provided with detent mechanism, described detent mechanism comprises ball jackscrew (57), spring (12), steel ball (59), on described counterbore (25) wall of the position of corresponding described depression (50), transverse horizontal arranges location hole, described jackscrew (57) is screwed onto in location hole, described spring (12) two ends and described steel ball (59) offset with described jackscrew (57), described steel ball (59) embeds in described depression (50).
The extending port at described combined floodgate upper valve rod (16) two ends in described combined floodgate upper valve base (31) arranges groove, this groove is embedded in Si Te and is sealed seal (17), sealing ring (25), sealing and described centre valve seat (13) of the closing a floodgate one end that offsets is sealed seal (17) for this spy, and the other end is sealing ring (25);
Described valve rod hourglass head (49) is arranged sealing Glais ring (6).
Elongated hole cavity blind end adopts technique stifled (10) to close, described main control valve signal controlling chamber high pressure keeps oilhole (32) inner by extending to described column (40) below pedestal, opening below described pedestal is closed by below technique stifled (39), described technique stifled (10) and below technique stifled (28) are jackscrew and block up, and described jackscrew is stifled to be fixed by screw thread and is provided with O RunddichtringO (8) along border.
Described lower end annular sealed step (102), upper end arrange endless v-groove (90) between annular sealed step (101) top and the bottom, the both sides of described endless v-groove (90) become 90 degree, the inside also horizontally set in bottom.
Advantage of the present invention is as follows:
1. the invention discloses a kind of primary cut-out hydraulic pressure spring operating mechanism, have employed the hydraulic valve control system of integrated form, divide-shut brake one-step valve, main control valve etc. are integrated in the cylinder seat of body of work cylinder, wherein master control valve barrel seat top is embedded in body of work cylinder, together form the hydraulic chamber of main control valve with the centre bore piston hydraulic pressure chamber of body of work cylinder; Body of work cylinder lower end and cylinder seat adopt the mode closely that connects to install the structure defining integrated form, improve reliability and stability;
2. main control valve signal controlling chamber high pressure keeps oilhole, main control valve signal chamber signal oilhole, toroidal cavity one to form circulating oil path loop, forms stable hydraulic oil and keep passage during "on" position.
3. this spy is sealed the use of seal, sealing ring, Glais ring, and effective sealing has blocked oil circuit, the better reliability made.
Accompanying drawing illustrates:
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is hydraulic operation control module structural representation of the present invention;
Fig. 3 is the structural representation of the master control spool of hydraulic operation control module of the present invention when lifting;
Fig. 4 is the structural representation of master control spool of the present invention;
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further.
Following examples are only for clearly demonstrating example of the present invention, and the restriction not to embodiments of the present invention.For the technology in affiliated field, other multi-form change or variations can also be made on the basis of the following description, and these belong to the present invention's spirit apparent change of drawing or variation is still among protection scope of the present invention.
The invention discloses a kind of primary cut-out hydraulic pressure spring operating mechanism, its operating energy storage module, hydraulic power transmission module etc. adopt existing technical scheme, the technology contents that concrete structure and operation principle are announced see the patent of invention that the patent No. is ZL201210042895.6 " a kind of working cylinder and high power hydraulic spring operating mechanism being integrated with control valve ".
A kind of primary cut-out hydraulic pressure spring operating mechanism, comprise energy storage fuel tank (68), working chamber piston rod (69), working cylinder (66), described working cylinder (66) inside is working chamber (73) setting up and down, described working cylinder (66) top arranges described energy storage fuel tank (68), described working chamber piston rod (69) be arranged in described working chamber (73) slide up and down connection and its upper end is positioned at described energy storage fuel tank (68), the opening sealing of described working cylinder (66) upper end, described working chamber (73) lower ending opening is also closed by described working chamber (73) bottom connecting fluid press operation control module (67),
Described hydraulic operation control module (67) comprises cylinder sleeve (1), cylinder seat (7), master control spool (4), electromagnetically operated valve (42), described cylinder seat (7) below is pedestal, described pedestal upper surface vertically arranges column (40), described column (40) top is provided with cylinder sleeve (1), described cylinder sleeve (1) bottom surface and described column (40) end face tabling also form the casing string (41) be fixed as one, described casing string (41) inserts the inner chamber of described working chamber (73) lower end and is closed by described working chamber (73) lower ending opening, described working cylinder (66) lower surface and described pedestal upper surface offset fixing, described casing string (41) outer wall matches with described working chamber (73) inwall, described casing string (41) inside is the main control valve signal cavity (36) vertically arranged, described main control valve signal cavity (36) top is provided with opening and is communicated with described working chamber (73), extend to the interior after-contraction of described column (40) bottom it and form bottom platform (43), master control spool (4) described in described main control valve signal cavity (36) inner sleeve sliding up and down with it is connected, and the side of described pedestal is provided with described electromagnetically operated valve (42),
In the wall of described working cylinder (66), two elongate tubular cavitys are vertically set by upper surface to bottom surface and are respectively high-pressure oil duct (79), normal pressure oil duct (70) is positioned at described working chamber (73) both sides, described high-pressure oil duct (79), normal pressure oil duct (70) lower ending opening is all closed, described high-pressure oil duct (79) top connects energy-storage liquid pressure oil pump, described normal pressure oil duct (70) top is communicated with described energy storage fuel tank (68), described working chamber piston rod (69) lower end is fixed with piston rod packing ring (74), described piston rod packing ring (74) is connected with the upper lower piston of described working chamber (73), described piston rod packing ring (74) splits described working chamber (73) for upper and lower two intervals, high-pressure oil duct (79) described in interval more than described piston rod packing ring (74) is communicated with, described piston rod packing ring (74) interval below moves up and down high-pressure oil duct (79) described in connection or normal pressure oil duct (70) according to the control master control spool (4) of hydraulic operation control module (67),
The cylinder that described master control spool (4) is inner hollow, described master control spool (4) top is top guide ring (61), described top guide ring (61) coordinates with described main control valve signal cavity (36) and is slidably connected, described master control spool (4) top is provided with normal pressure outage (44) and is positioned at below, described top guide ring (61), bottom is provided with high pressure outage (47), and described outage is all communicated with described master control spool (4) outside and internal cavities;
Described casing string (41) is horizontally arranged with normal pressure oilhole (52) from top to bottom respectively, high pressure oilhole (55), its outside is communicated with described main control valve signal cavity (36), described normal pressure oilhole (52) is communicated with the normal pressure oil pocket (76) of described normal pressure oil duct (70) by horizontally set, described high pressure oilhole (55) by the high-voltage oil cavity (81) of horizontally set and described high-pressure oil duct (79) be communicated with, slide in the described main control valve signal cavity (36) of described top guide ring (61) more than described normal pressure oilhole (52), described master control spool (4) is arranged sealing ring, sealing Glais ring (5) is slided with coordinating in the described main control valve signal cavity (36) between high pressure oilhole (55) described normal pressure oilhole (52), blocking-up normal pressure oilhole (52) is communicated with high pressure oilhole (55),
The corresponding described normal pressure oilhole (52) of described cylinder sleeve (1), toroidal cavity four (27) and toroidal cavity five (28) is formed respectively between described high pressure oilhole (55) region and described master control spool (4), described master control spool (4) is in described high pressure outage (47) upper end, described normal pressure outage (44) lower end is respectively arranged with lower end annular sealed step (102) of evagination, upper end annular sealed step (101), it is up spacing to described master control spool (4) that the upper end of described upper end annular sealed step (101) coordinates lower end to stretch into described toroidal cavity four (27) with main control valve signal cavity (36), it is descending spacing to described master control spool (4) that the lower end of described lower end ring-shaped step (102) coordinates upper end to stretch into described toroidal cavity five (28) with main control valve signal cavity (36), described master control spool (4) slides up and down at this interval range,
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), and described counterbore (25) below arranges coaxial main control valve signal chamber signal oilhole (37) and is interconnected;
When described master control spool (4) drops to bottom, described normal pressure outage (44) is communicated with described normal pressure oilhole (52), described high pressure oilhole (55) and described high pressure outage (47) are mutually closed and are isolated, described working chamber piston rod (69) is descending, and described piston rod packing ring (74) comes downwards to the upper shed of described main control valve signal cavity (36);
When described master control spool (4) is lifted, described normal pressure outage (44) and described normal pressure oilhole (52) are mutually closed and are isolated, described high pressure oilhole (55) is communicated with described high pressure outage (47), the upper shed of described main control valve signal cavity (36) is communicated with described working chamber (73), and described working chamber piston rod (69) is up;
The lifting of described master control spool (4) has been come by the valve body in pedestal described in described solenoid control and hydraulic circuit
Described valve body comprises combined floodgate one-step valve (20), separating brake one-step valve (23); Two horizontal elongated hole cavitys setting up and down in described pedestal, the built-in described combined floodgate one-step valve (20) of top elongated hole cavity, the built-in described separating brake one-step valve (23) of below elongated hole cavity, one end of described two elongated hole cavity homonymies is closed, the other end is openend, and described electromagnetically operated valve (42) is arranged on its openend;
Described combined floodgate one-step valve (20) comprises combined floodgate valve seat stifled (30), combined floodgate upper valve base (31), close a floodgate middle valve seat (13), combined floodgate lower valve base (11) and in-built spring (12) thereof and locking steel ball (9), combined floodgate upper valve rod (16); elongated hole cavities open end to the blind end of described top fixedly mounts combined floodgate valve seat stifled (30) successively, combined floodgate upper valve base (31), in the middle of closing a floodgate valve seat (13) form combined floodgate valve seat group and and form spring between blind end and assemble cavity one, described combined floodgate valve seat blocks up (30), combined floodgate upper valve base (31), in the middle of closing a floodgate, close all separately by independent the partition by described elongated hole cavity for valve seat (13), be mated and be slidably connected in the cavity that described combined floodgate upper valve rod (16) crosses described combined floodgate valve seat group switching centre, the execution bar (15) of the one end and described electromagnetically operated valve of stretching out described elongated hole cavities open end links, described combined floodgate lower valve base (11) is arranged in described spring assembling cavity one, spring cavity one (14) is horizontally arranged with in described combined floodgate lower valve base (11), described locking steel ball (9) and described spring (12) are horizontally set in described spring cavity one (14), described locking steel ball (9) offsets with the extending port of described combined floodgate upper valve rod (16) in described spring (12) and described middle valve seat (13) of closing a floodgate respectively, described locking steel ball (9) closes this extending port, described combined floodgate lower valve base (11) two ends respectively with the blind end of described elongated hole cavity and described combined floodgate in the middle of valve seat (13) offset and close described spring cavity one (14), toroidal cavity one (16) is formed along between described combined floodgate lower valve base (11) outer rim and described elongated hole cavity, described toroidal cavity one (16) two ends isolate respectively to close and form independently cavity being communicated with described spring cavity one (14), toroidal cavity two (19) is formed between valve seat (13) outer rim and described elongated hole cavity in the middle of described combined floodgate, its toroidal cavity two (19) two ends isolate respectively to close and form independently cavity being communicated with described main control valve signal chamber signal oilhole (37),
Arrange high-pressure oil passage (35) two ends in the described column (40) of described cylinder seat (7) to be communicated with described high-pressure oil duct (79) and described toroidal cavity one (16) respectively, described toroidal cavity one (16) is communicated with described spring cavity one (14), one section of described combined floodgate upper valve rod (16) and described the combined floodgate between middle valve seat (13) inner chamber of the close described locking steel ball (9) that described middle valve seat (13) is inner form space, described toroidal cavity two (19) is communicated with this space, when described combined floodgate one-step valve (20) described locking steel ball (9) by described combined floodgate upper valve rod (16) stretch out push open time, formed from described high-pressure oil duct (79) to high-pressure oil passage (35), described spring cavity one (14), described toroidal cavity two (19), the oil duct that main control valve signal chamber signal oilhole (37) is communicated with,
Described separating brake one-step valve (23) comprises point gate valve stifled (103), separating brake upper valve base (21), separating brake lower valve base (18), spring (12) and locking steel ball (9), separating brake upper valve rod (24), fixing point gate valve stifled (103) is installed between described below elongated hole cavities open end and the blind end described in it successively, separating brake upper valve base (21) forms a point gate valve seat group, form spring between described separating brake upper valve base (21) and described elongated hole cavity blind end and assemble cavity two, described point of gate valve stifled (103), the elongated hole cavity of described below all cuts off and closes by separating brake upper valve base (21), described separating brake lower valve base (18) is placed in described spring assembling cavity two, described separating brake lower valve base (18) two ends offset with the blind end of described below elongated hole cavity and described separating brake upper valve base (21) respectively, described separating brake upper valve rod (24) is slidably matched along described elongated hole cavity direction through described point of gate valve seat group inner chamber, another of the described separating brake upper valve rod (24) of stretching out described elongated hole cavities open end side and described electromagnetically operated valve performs bar (15) and links, described locking steel ball (9) is placed in described spring (12) in the spring cavity two of described separating brake lower valve base (18) horizontally set respectively, described locking steel ball (9) two ends offset with described separating brake upper valve rod (24) extending port of described separating brake lower valve base (18) and described spring (12) and close this extending port respectively, described separating brake lower valve base (18) outer rim and described elongated hole cavity form ring cavity three (22), described ring cavity three (22) two ends isolating seal forms individual cavities, described ring cavity three (22) is communicated with described spring cavity two, described ring cavity three (22), spring cavity two are communicated with described toroidal cavity two (19),
The described locking steel ball (9) of described combined floodgate one-step valve (20) is shunk rear closed by described combined floodgate upper valve rod (16), simultaneously described separating brake upper valve rod (24) pushes described locking steel ball (9) described in it open, annular gap is formed between the outer rim of one section of separating brake upper valve rod (24) of the close described locking steel ball (9) in described separating brake upper valve base (21) and described separating brake upper valve base (21), this gap is by being communicated with normal pressure oilhole (33) one end vertically arranged in cylinder seat (7), described normal pressure oilhole (33) is communicated with described normal pressure oil duct (70) straight up, form described normal pressure oil duct (70) and normal pressure oilhole (33), described gap, described toroidal cavity two (19), the oil duct that described main control valve signal chamber signal oilhole (37) is communicated with, the described locking steel ball (9) of described combined floodgate one-step valve (20) cuts off described high-pressure oil duct (79) and described ring cavity two (19),
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), described counterbore (25) is communicated with described toroidal cavity two (19) by coaxial main control valve signal chamber signal oilhole (37), described master control spool (4) lower end is taper, this tapered bottom end is vertically provided with valve rod hourglass head (49), described valve rod hourglass head (49) is inserted in described counterbore (25), and slide up and down with described counterbore (25) and be tightly connected, upper described counterbore (25) side of described platform (43) is provided with main control valve signal controlling chamber high pressure and keeps oilhole (32) to be communicated with described toroidal cavity two (19), under the walking to of described master control spool (4) in limited time, oil back chamber (26) is defined with described main control valve signal cavity (36), described high pressure outage (47) and described oil back chamber (26), described main control valve signal controlling chamber high pressure keeps oilhole (32), described toroidal cavity two (19) is communicated with.
Described valve rod hourglass head (49) stage casing radial direction is provided with depression (50), when described master control spool (4) offsets with described column (40) top, corresponding described depression (50) position, counterbore (25) inner both sides of described cylinder seat (7) is provided with detent mechanism, described detent mechanism comprises ball jackscrew (57), spring (12), steel ball (59), on described counterbore (25) wall of the position of corresponding described depression (50), transverse horizontal arranges location hole, described jackscrew (57) is screwed onto in location hole, described spring (12) two ends and described steel ball (59) offset with described jackscrew (57), described steel ball (59) embeds in described depression (50).
The extending port at described combined floodgate upper valve rod (16) two ends in described combined floodgate upper valve base (31) arranges groove, this groove is embedded in Si Te and is sealed seal (17), sealing ring (25), sealing and described centre valve seat (13) of the closing a floodgate one end that offsets is sealed seal (17) for this spy, and the other end is sealing ring (25);
Described valve rod hourglass head (49) is arranged sealing Glais ring (6).
Elongated hole cavity blind end adopts technique stifled (10) to close, described main control valve signal controlling chamber high pressure keeps oilhole (32) inner by extending to described column (40) below pedestal, opening below described pedestal is closed by below technique stifled (39), described technique stifled (10) and below technique stifled (28) are jackscrew and block up, and described jackscrew is stifled to be fixed by screw thread and is provided with O RunddichtringO (8) along border.
Described lower end annular sealed step (102), upper end arrange endless v-groove (90) between annular sealed step (101) top and the bottom, the both sides of described endless v-groove (90) become 90 degree, the inside also horizontally set in bottom.
Its course of work is as follows:
During the non-energy storage of described hydraulic pressure spring operating mechanism separating brake, stored energy operation should be carried out in advance to provide hydraulic energy when carrying out closing operation.The energy storage course of work: see the patent of invention of " a kind of working cylinder and high power hydraulic spring operating mechanism ZL201210042895.6 being integrated with control valve ".
The major function of hydraulic pressure spring operating mechanism is the interaction by Hydraulic Elements, realizes lifting and falling two elemental motions of working chamber piston rod 69.To fall and be called separating brake, and lift and be called combined floodgate.
Trigger state: described working chamber piston rod 69 falling state, when V-groove 90 and described column 40 top of the lower surface 102 of described master control spool 4 offset and are in sealing state, now combined floodgate one-step valve 20, separating brake one-step valve 23 are all in for trigger state, namely described combined floodgate upper valve rod 16, described separating brake upper valve rod 24 are all in retracted mode, described locking steel ball 9 closing oil path.
When V-groove 90 and described column 40 top of the lower surface 102 of described master control spool 4 offset and are in sealing state, described normal pressure outage 44 is communicated with described normal pressure oil pocket 76, described high pressure oilhole 55 and described high pressure outage 47 are mutually closed and are isolated, and the lower surface of described piston rod packing ring 74 is in the upper shed position with the main control valve signal cavity 36 of described pipe box post 41; The inner chamber of described master control spool 4 is atmospheric pressure state, and above described piston rod packing ring 74, interval is in high pressure conditions, and below is in atmospheric pressure state;
When triggering feed motion, first described electromagnetically operated valve 42 triggers and performs bar, described execution bar promotes described combined floodgate upper valve rod 16, the locking steel ball 9 offseted with it is pushed open by described combined floodgate upper valve rod 16, by described high-pressure oil passage 35 hydraulic oil of described high-pressure oil duct 79 introduced described locking steel ball 9 offset one section described combined floodgate upper valve rod 16 and described close a floodgate in the middle of the space that formed between valve seat 13, and then the described toroidal cavity 2 19 described in flowing into, described main control valve signal chamber signal oilhole 37, described deep hole 25, described deep hole 25 inner chamber below described valve rod hourglass head 49 become high pressure conditions, described master control spool 4 inner chamber is in atmospheric pressure state, the tubular spool 4 of described master control is moved up by the active force of below hydraulic oil, after described master control spool 4 moves up, described base pressure outage 44 and described normal pressure oil pocket 76 are mutually closed and are isolated, described high pressure oilhole 55 is communicated with described high pressure outage 55, described main control valve signal chamber signal oilhole 37, described main control valve signal controlling chamber high pressure keeps oilhole 32, described toroidal cavity 2 19 forms hydraulic oil loop, hydraulic oil enters the inner chamber of described master control spool 4 by described high pressure outage 47 in the process, master control spool 4 inner chamber described in it is made to be in high pressure conditions, be high pressure conditions below described piston rod packing ring 74, described working chamber piston rod 69 has moved up rapidly closing operation.
Sub-switching operation process, described separating brake upper valve rod 24 triggers and backs down the described locking steel ball 9 offseted with it by described electromagnetically operated valve 42, the high-pressure oil flow of high pressure conditions is now in through described master control pipe type valve signal chamber signal oilhole 37 in described main control valve signal chamber 36, described locking steel ball 9 offset one section described combined floodgate upper valve rod 16 and described close a floodgate in the middle of form space between valve seat 13, described toroidal cavity 2 19, described separating brake lower valve base 18, gap is formed between the external diameter of the separating brake upper valve rod 24 of blind end side and described separating brake upper valve base 21, described normal pressure oilhole 33 finally flows into described normal pressure oil duct 70, and then flow back in fuel tank.Atmospheric pressure state is formed in described deep hole 25 below described valve rod hourglass head 49, the tubular spool 4 of the mineralization pressure described master control of difference moves downward, when described master control spool 4 lower end and described column 40 top offset and are in sealing state, described normal pressure outage 44 is communicated with described normal pressure oil pocket 76, described high pressure oilhole 47 and described high pressure outage 52 are mutually closed and are isolated, atmospheric pressure state is in described master control spool 4 inner chamber, described piston rod packing ring 74 moves down its position, lower surface to the upper shed with the main control valve signal cavity 36 of described pipe box post 41, described main control valve signal chamber 36 below described piston rod packing ring 74 proceeds to atmospheric pressure state, complete sub-switching operation.
Described top guide ring 61 slides up and down in described cylinder sleeve 1, ensure that the stability moved up and down of the tubular spool 4 of described master control.
The hydraulic pressure signal that described separating brake one-step valve 23 and described combined floodgate one-step valve 20 export directly provides to operate and triggers power, is integrated in the pedestal of cylinder seat 7 lower end.
The potted components such as the sealing ring in technical scheme all have good sealing and isolation effect.Described master control spool 4 slides up and down at this interval range; The endless v-groove 90 of the upper end ring-shaped step 101 of wherein said spool 4 forms with the lower surface in main control valve signal chamber 36 and is sealed and matched, and seal isolation main control valve signal chamber 36 is communicated with normal pressure oilhole 52; Lower end ring-shaped step 102V type groove 90 forms with the upper surface of column 40 and is sealed and matched, and seal isolation main control valve signal chamber 36 is communicated with high pressure oilhole 55; And at seal isolation main control valve signal chamber 36 and the passage being communicated with main control valve signal chamber 36 and high pressure oilhole 55 while normal pressure oilhole 52, at seal isolation main control valve signal chamber 36 and the passage being communicated with main control valve signal chamber 36 and normal pressure oilhole 52 while high pressure oilhole 55; Effectively can seal oil circuit.V-groove 90 is all designed to seal valve port.
Described column 40 arranges bipassage ring connected in star along border, described twice groove is placed between described normal pressure oilhole 33 and described high-pressure oil passage 35 cross connection place respectively, and described normal pressure oilhole 33 cross connection is sentenced down, this groove is embedded in Si Te and is sealed being communicated with between inner chamber that seal 17 seal isolation normal pressure oilhole 33 and described high-pressure oil passage 35 formed at described column 40 and described working chamber 73;
The extending port at described combined floodgate upper valve rod 16 two ends in described combined floodgate upper valve base 31 arranges groove, this groove is embedded in Si Te and is sealed seal 17, sealing ring 25, sealing and the described centre valve seat 13 that the closes a floodgate one end that offsets is sealed seal 17 for this spy, and the other end is sealing ring 25;
Normal pressure oilhole about 52 is respectively arranged with two grooves 53 along described cylinder sleeve 1 circumference and embeds back-up ring and sealing ring 3, and the groove 53 of described top is embedded in sealing ring 3;
Described master control spool 4 border between hole 47 and described normal pressure outage 44 arranges groove, and groove is embedded in sealing Glais ring 5;
Hourglass head 49 is provided with sealing Glais ring 6 along border;
Described guide ring 61 is provided with sealing Glais ring 6 along border.
Be sealed seal 17 by this spy described, valve seat 13 and described combined floodgate upper valve rod 16 in the middle of described combined floodgate sealed, forms the form of slipper seal.
Described hydraulic pressure spring operating mechanism closes a floodgate or after separating brake action, see the patent of invention of " a kind of working cylinder and high power hydraulic spring operating mechanism ZL201210042895.6 being integrated with control valve ".Hydraulic oil in working cylinder high-voltage oil cavity, working cylinder high pressure oilhole and loaded cylinder high-voltage oil cavity can enter working cylinder signal oil pocket or working cylinder low pressure oilhole flows back to fuel tank again, to make on loaded cylinder inner circle loop and working cylinder outer wall annulus daylight opening DLO from reduction, the i.e. loss of disc spring group energy, needs energy storage again after energy loss is a certain amount of.
In this said process, this spy described installed between described combined floodgate upper valve rod 16 and described combined floodgate upper valve base 31 is sealed seal 17 and there will be a small amount of oil leakage phenomenon, the hydraulic oil leaked out will be imported in normal laminated oil zone, define the form of encirclement high pressure oil area, normal laminated oil zone, avoid leaking of making process mesohigh hydraulic oil.
Claims (6)
1. a primary cut-out hydraulic pressure spring operating mechanism, comprise energy storage fuel tank (68), working chamber piston rod (69), working cylinder (66), described working cylinder (66) inside is working chamber (73) setting up and down, described working cylinder (66) top arranges described energy storage fuel tank (68), described working chamber piston rod (69) be arranged in described working chamber (73) slide up and down connection and its upper end is positioned at described energy storage fuel tank (68), the opening sealing of described working cylinder (66) upper end, it is characterized in that: described working chamber (73) lower ending opening is also closed by described working chamber (73) bottom connecting fluid press operation control module (67),
Described hydraulic operation control module (67) comprises cylinder sleeve (1), cylinder seat (7), master control spool (4), electromagnetically operated valve (42), described cylinder seat (7) below is pedestal, described pedestal upper surface vertically arranges column (40), described column (40) top is provided with cylinder sleeve (1), described cylinder sleeve (1) bottom surface and described column (40) end face tabling also form the casing string (41) be fixed as one, described casing string (41) inserts the inner chamber of described working chamber (73) lower end and is closed by described working chamber (73) lower ending opening, described working cylinder (66) lower surface and described pedestal upper surface offset fixing, described casing string (41) outer wall matches with described working chamber (73) inwall, described casing string (41) inside is the main control valve signal cavity (36) vertically arranged, described main control valve signal cavity (36) top is provided with opening and is communicated with described working chamber (73), extend to the interior after-contraction of described column (40) bottom it and form bottom platform (43), master control spool (4) described in described main control valve signal cavity (36) inner sleeve sliding up and down with it is connected, and the side of described pedestal is provided with described electromagnetically operated valve (42),
In the wall of described working cylinder (66), two elongate tubular cavitys are vertically set by upper surface to bottom surface and are respectively high-pressure oil duct (79), normal pressure oil duct (70) is positioned at described working chamber (73) both sides, described high-pressure oil duct (79), normal pressure oil duct (70) lower ending opening is all closed, described high-pressure oil duct (79) top connects energy-storage liquid pressure oil pump, described normal pressure oil duct (70) top is communicated with described energy storage fuel tank (68), described working chamber piston rod (69) lower end is fixed with piston rod packing ring (74), described piston rod packing ring (74) is connected with the upper lower piston of described working chamber (73), described piston rod packing ring (74) splits described working chamber (73) for upper and lower two intervals, high-pressure oil duct (79) described in interval more than described piston rod packing ring (74) is communicated with, described piston rod packing ring (74) interval below moves up and down high-pressure oil duct (79) described in connection or normal pressure oil duct (70) according to the control master control spool (4) of hydraulic operation control module (67),
The cylinder that described master control spool (4) is inner hollow, described master control spool (4) top is top guide ring (61), described top guide ring (61) coordinates with described main control valve signal cavity (36) and is slidably connected, described master control spool (4) top is provided with normal pressure outage (44) and is positioned at below, described top guide ring (61), bottom is provided with high pressure outage (47), and described outage is all communicated with described master control spool (4) outside and internal cavities;
Described casing string (41) is horizontally arranged with normal pressure oilhole (52) from top to bottom respectively, high pressure oilhole (55), its outside is communicated with described main control valve signal cavity (36), described normal pressure oilhole (52) is communicated with the normal pressure oil pocket (76) of described normal pressure oil duct (70) by horizontally set, described high pressure oilhole (55) by the high-voltage oil cavity (81) of horizontally set and described high-pressure oil duct (79) be communicated with, slide in the described main control valve signal cavity (36) of described top guide ring (61) more than described normal pressure oilhole (52), described master control spool (4) is arranged sealing ring, sealing Glais ring (5) is slided with coordinating in the described main control valve signal cavity (36) between high pressure oilhole (55) described normal pressure oilhole (52), blocking-up normal pressure oilhole (52) is communicated with high pressure oilhole (55),
The corresponding described normal pressure oilhole (52) of described cylinder sleeve (1), toroidal cavity four (27) and toroidal cavity five (28) is formed respectively between described high pressure oilhole (55) region and described master control spool (4), described master control spool (4) is in described high pressure outage (47) upper end, described normal pressure outage (44) lower end is respectively arranged with lower end annular sealed step (102) of evagination, upper end annular sealed step (101), it is up spacing to described master control spool (4) that the upper end of described upper end annular sealed step (101) coordinates lower end to stretch into described toroidal cavity four (27) with main control valve signal cavity (36), it is descending spacing to described master control spool (4) that the lower end of described lower end ring-shaped step (102) coordinates upper end to stretch into described toroidal cavity five (28) with main control valve signal cavity (36), described master control spool (4) slides up and down at this interval range,
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), and described counterbore (25) below arranges coaxial main control valve signal chamber signal oilhole (37) and is interconnected;
When described master control spool (4) drops to bottom, described normal pressure outage (44) is communicated with described normal pressure oilhole (52), described high pressure oilhole (55) and described high pressure outage (47) are mutually closed and are isolated, described working chamber piston rod (69) is descending, and described piston rod packing ring (74) comes downwards to the upper shed of described main control valve signal cavity (36);
When described master control spool (4) is lifted, described normal pressure outage (44) and described normal pressure oilhole (52) are mutually closed and are isolated, described high pressure oilhole (55) is communicated with described high pressure outage (47), the upper shed of described main control valve signal cavity (36) is communicated with described working chamber (73), and described working chamber piston rod (69) is up;
The lifting of described master control spool (4) has been come by the valve body in pedestal described in described solenoid control and hydraulic circuit.
2. a kind of primary cut-out hydraulic pressure spring operating mechanism according to claim 1, is characterized in that: described valve body comprises combined floodgate one-step valve (20), separating brake one-step valve (23); Two horizontal elongated hole cavitys setting up and down in described pedestal, the built-in described combined floodgate one-step valve (20) of top elongated hole cavity, the built-in described separating brake one-step valve (23) of below elongated hole cavity, one end of described two elongated hole cavity homonymies is closed, the other end is openend, and described electromagnetically operated valve (42) is arranged on its openend;
Described combined floodgate one-step valve (20) comprises combined floodgate valve seat stifled (30), combined floodgate upper valve base (31), close a floodgate middle valve seat (13), combined floodgate lower valve base (11) and in-built spring (12) thereof and locking steel ball (9), combined floodgate upper valve rod (16); elongated hole cavities open end to the blind end of described top fixedly mounts combined floodgate valve seat stifled (30) successively, combined floodgate upper valve base (31), in the middle of closing a floodgate valve seat (13) form combined floodgate valve seat group and and form spring between blind end and assemble cavity one, described combined floodgate valve seat blocks up (30), combined floodgate upper valve base (31), in the middle of closing a floodgate, close all separately by independent the partition by described elongated hole cavity for valve seat (13), be mated and be slidably connected in the cavity that described combined floodgate upper valve rod (16) crosses described combined floodgate valve seat group switching centre, the execution bar (15) of the one end and described electromagnetically operated valve of stretching out described elongated hole cavities open end links, described combined floodgate lower valve base (11) is arranged in described spring assembling cavity one, spring cavity one (14) is horizontally arranged with in described combined floodgate lower valve base (11), described locking steel ball (9) and described spring (12) are horizontally set in described spring cavity one (14), described locking steel ball (9) offsets with the extending port of described combined floodgate upper valve rod (16) in described spring (12) and described middle valve seat (13) of closing a floodgate respectively, described locking steel ball (9) closes this extending port, described combined floodgate lower valve base (11) two ends respectively with the blind end of described elongated hole cavity and described combined floodgate in the middle of valve seat (13) offset and close described spring cavity one (14), toroidal cavity one (16) is formed along between described combined floodgate lower valve base (11) outer rim and described elongated hole cavity, described toroidal cavity one (16) two ends isolate respectively to close and form independently cavity being communicated with described spring cavity one (14), toroidal cavity two (19) is formed between valve seat (13) outer rim and described elongated hole cavity in the middle of described combined floodgate, its toroidal cavity two (19) two ends isolate respectively to close and form independently cavity being communicated with described main control valve signal chamber signal oilhole (37),
Arrange high-pressure oil passage (35) two ends in the described column (40) of described cylinder seat (7) to be communicated with described high-pressure oil duct (79) and described toroidal cavity one (16) respectively, described toroidal cavity one (16) is communicated with described spring cavity one (14), one section of described combined floodgate upper valve rod (16) and described the combined floodgate between middle valve seat (13) inner chamber of the close described locking steel ball (9) that described middle valve seat (13) is inner form space, described toroidal cavity two (19) is communicated with this space, when described combined floodgate one-step valve (20) described locking steel ball (9) by described combined floodgate upper valve rod (16) stretch out push open time, formed from described high-pressure oil duct (79) to high-pressure oil passage (35), described spring cavity one (14), described toroidal cavity two (19), the oil duct that main control valve signal chamber signal oilhole (37) is communicated with,
Described separating brake one-step valve (23) comprises point gate valve stifled (103), separating brake upper valve base (21), separating brake lower valve base (18), spring (12) and locking steel ball (9), separating brake upper valve rod (24), fixing point gate valve stifled (103) is installed between described below elongated hole cavities open end and the blind end described in it successively, separating brake upper valve base (21) forms a point gate valve seat group, form spring between described separating brake upper valve base (21) and described elongated hole cavity blind end and assemble cavity two, described point of gate valve stifled (103), the elongated hole cavity of described below all cuts off and closes by separating brake upper valve base (21), described separating brake lower valve base (18) is placed in described spring assembling cavity two, described separating brake lower valve base (18) two ends offset with the blind end of described below elongated hole cavity and described separating brake upper valve base (21) respectively, described separating brake upper valve rod (24) is slidably matched along described elongated hole cavity direction through described point of gate valve seat group inner chamber, another of the described separating brake upper valve rod (24) of stretching out described elongated hole cavities open end side and described electromagnetically operated valve performs bar (15) and links, described locking steel ball (9) is placed in described spring (12) in the spring cavity two of described separating brake lower valve base (18) horizontally set respectively, described locking steel ball (9) two ends offset with described separating brake upper valve rod (24) extending port of described separating brake lower valve base (18) and described spring (12) and close this extending port respectively, described separating brake lower valve base (18) outer rim and described elongated hole cavity form ring cavity three (22), described ring cavity three (22) two ends isolating seal forms individual cavities, described ring cavity three (22) is communicated with described spring cavity two, described ring cavity three (22), spring cavity two are communicated with described toroidal cavity two (19),
The described locking steel ball (9) of described combined floodgate one-step valve (20) is shunk rear closed by described combined floodgate upper valve rod (16), simultaneously described separating brake upper valve rod (24) pushes described locking steel ball (9) described in it open, annular gap is formed between the outer rim of one section of separating brake upper valve rod (24) of the close described locking steel ball (9) in described separating brake upper valve base (21) and described separating brake upper valve base (21), this gap is by being communicated with normal pressure oilhole (33) one end vertically arranged in cylinder seat (7), described normal pressure oilhole (33) is communicated with described normal pressure oil duct (70) straight up, form described normal pressure oil duct (70) and normal pressure oilhole (33), described gap, described toroidal cavity two (19), the oil duct that described main control valve signal chamber signal oilhole (37) is communicated with, the described locking steel ball (9) of described combined floodgate one-step valve (20) cuts off described high-pressure oil duct (79) and described ring cavity two (19),
Described main control valve signal cavity platform (43) central lower is provided with counterbore (25), described counterbore (25) is communicated with described toroidal cavity two (19) by coaxial main control valve signal chamber signal oilhole (37), described master control spool (4) lower end is taper, this tapered bottom end is vertically provided with valve rod hourglass head (49), described valve rod hourglass head (49) is inserted in described counterbore (25), and slide up and down with described counterbore (25) and be tightly connected, upper described counterbore (25) side of described platform (43) is provided with main control valve signal controlling chamber high pressure and keeps oilhole (32) to be communicated with described toroidal cavity two (19), under the walking to of described master control spool (4) in limited time, oil back chamber (26) is defined with described main control valve signal cavity (36), described high pressure outage (47) and described oil back chamber (26), described main control valve signal controlling chamber high pressure keeps oilhole (32), described toroidal cavity two (19) is communicated with.
3. a kind of primary cut-out hydraulic pressure spring operating mechanism according to claim 2, it is characterized in that: described valve rod hourglass head (49) stage casing radial direction is provided with depression (50), when described master control spool (4) offsets with described column (40) top, corresponding described depression (50) position, counterbore (25) inner both sides of described cylinder seat (7) is provided with detent mechanism, described detent mechanism comprises ball jackscrew (57), spring (12), steel ball (59), on described counterbore (25) wall of the position of corresponding described depression (50), transverse horizontal arranges location hole, described jackscrew (57) is screwed onto in location hole, described spring (12) two ends and described steel ball (59) offset with described jackscrew (57), described steel ball (59) embeds in described depression (50).
4. a kind of primary cut-out hydraulic pressure spring operating mechanism according to claim 2, it is characterized in that: the extending port at described combined floodgate upper valve rod (16) two ends in described combined floodgate upper valve base (31) arranges groove, this groove is embedded in Si Te and is sealed seal (17), sealing ring (25), sealing and described centre valve seat (13) of the closing a floodgate one end that offsets is sealed seal (17) for this spy, and the other end is sealing ring (25);
Described valve rod hourglass head (49) is arranged sealing Glais ring (6).
5. a kind of primary cut-out hydraulic pressure spring operating mechanism according to claim 1, it is characterized in that: elongated hole cavity blind end adopts technique stifled (10) to close, described main control valve signal controlling chamber high pressure keeps oilhole (32) inner by extending to described column (40) below pedestal, opening below described pedestal is closed by below technique stifled (39), described technique stifled (10) and below technique stifled (28) are jackscrew and block up, and described jackscrew is stifled to be fixed by screw thread and is provided with O RunddichtringO (8) along border.
6. a kind of primary cut-out hydraulic pressure spring operating mechanism according to claim 1, it is characterized in that: described lower end annular sealed step (102), upper end arrange endless v-groove (90) between annular sealed step (101) top and the bottom, the both sides of described endless v-groove (90) become 90 degree, the inside also horizontally set in bottom.
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| US6903295B2 (en) * | 2003-02-14 | 2005-06-07 | Hitachi, Ltd. | Fluid pressure operating apparatus for circuit breaker |
| CN101013636A (en) * | 2007-02-09 | 2007-08-08 | 沈阳东华工大高压电器设备有限公司 | Casing-integrated spring hydraulic operation mechanism for primary cut-out |
| CN102592877A (en) * | 2012-02-22 | 2012-07-18 | 王颖 | Working cylinder integrated with control valve and high-power hydraulic spring operating mechanism |
| CN204946742U (en) * | 2015-07-31 | 2016-01-06 | 朱志鹏 | A kind of primary cut-out hydraulic pressure spring operating mechanism |
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2015
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6903295B2 (en) * | 2003-02-14 | 2005-06-07 | Hitachi, Ltd. | Fluid pressure operating apparatus for circuit breaker |
| CN101013636A (en) * | 2007-02-09 | 2007-08-08 | 沈阳东华工大高压电器设备有限公司 | Casing-integrated spring hydraulic operation mechanism for primary cut-out |
| CN102592877A (en) * | 2012-02-22 | 2012-07-18 | 王颖 | Working cylinder integrated with control valve and high-power hydraulic spring operating mechanism |
| CN204946742U (en) * | 2015-07-31 | 2016-01-06 | 朱志鹏 | A kind of primary cut-out hydraulic pressure spring operating mechanism |
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