CN109458466B - Front end gate for shield machine - Google Patents
Front end gate for shield machine Download PDFInfo
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- CN109458466B CN109458466B CN201811430270.0A CN201811430270A CN109458466B CN 109458466 B CN109458466 B CN 109458466B CN 201811430270 A CN201811430270 A CN 201811430270A CN 109458466 B CN109458466 B CN 109458466B
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- valve body
- half valve
- flashboard
- fixedly connected
- shield
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0227—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/0281—Guillotine or blade-type valves, e.g. no passage through the valve member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to the technical field of front-end gates for shield machines, and discloses a front-end gate for a shield machine. This shield constructs machine front end gate adopts flat bottom design through the runner bottom, does not have any influence the hindrance of medium flow, can not deposit the sediment, and the valve body adopts symmetrical two-half design, with bolted connection, and manufacturing process is simple, and the part interchangeability is strong, and the seal seat adopts U type and cross-section shape to be T type design, and left and right half valve body is equipped with corresponding L type groove for fixed U type cross-section seal seat, can realize the seal between two half valve bodies, can realize the flashboard again when closing the seal between flashboard both sides, bottom and the valve body, thereby the floodgate has reached convenient maintenance's effect.
Description
Technical Field
The invention relates to the technical field of front-end gates for shield machines, in particular to a front-end gate for a shield machine.
Background
The slurry type shield tunneling machine stabilizes an excavation surface by pressurizing slurry or mud, a sealing baffle plate is arranged behind a cutter disc of the slurry type shield tunneling machine, a mud water chamber is formed between the slurry type shield tunneling machine and the excavation surface, the slurry is filled in the slurry type shield tunneling machine, excavated soil and mud are mixed and conveyed to an out-hole separation plant by a mud pump, and the separated mud is reused, but the front shield installation space of the conventional shield tunneling machine is insufficient and is inconvenient to maintain.
The sealing partition plate behind the cutter head is provided with a gate, the gate is opened when the shield machine works, slurry is output by the slurry pump through the gate, when equipment is overhauled, the gate is closed, the pressure of an excavation surface can be guaranteed, equipment overhauling behind the sealing partition plate can be realized, and the installation height of the current gate is higher, so that the front end gate for the shield machine is provided for solving the problems.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides the front-end gate for the shield machine, which has the advantages of reducing the height of the front-end gate, being convenient for maintenance and the like, and solves the problems of higher installation height and inconvenient maintenance of the front-end gate.
(II) technical scheme
In order to achieve the purposes of intelligent take-over and high take-over efficiency, the invention provides the following technical scheme: the utility model provides a shield constructs quick-witted front end gate, including the baffle, the left side of baffle passes through the half valve body in hexagonal bolt fixedly connected with right side, the half valve body in right side passes through nut and the half valve body in left side of stud fixedly connected with, the left side joint of the half valve body in right side has the U type seal seat with the right side joint of the half valve body in left side, the left side swing joint of the half valve body in right side has the flashboard with the right side swing joint of the half valve body in left side, the bottom and the front and back both sides of flashboard all contact with the U type seal seat, the crossbeam is passed through at the top of flashboard, two recesses have been seted up at the top on the half valve body in left side, the inside wall fixedly connected with of recess two mount pads, the right side joint of mount pad has the connecting rod, the right side of mount pad passes through hexagonal bolt fixedly connected with fixed plate, the middle part fixedly connected with of connecting rod and the pulley of the left side contact of flashboard, the top of the half valve body in left side and the half valve body all passes through hexagonal bolt fixedly connected with middle channel connecting plate, the top joint with ram with the middle channel connecting plate in the middle channel, the top of middle channel is cup jointed with the connecting plate and the gland through the blind nut in the middle channel connecting plate and the blind nut.
As shown in fig. 1, the right side of the partition board is the mud excavated during the tunneling of the shield machine, the left side is provided with a front end gate which is fixed on the partition board through a hexagonal bolt, when the shield machine works normally, a gate plate of the front end gate is opened, the excavated mud is conveyed to a mud discharging pipe through a runner, and when the shield machine overhauls, the front end gate acts, the gate plate is closed in place, the mud on the right side is isolated, and the left side of the gate plate is pressureless for overhauling.
As shown in figure 1, the right half valve body and the left half valve body are provided with a U-shaped sealing seat and a flashboard, the U-shaped sealing seat and the flashboard are fixed by using a stud and a nut, the U-shaped sealing seat and the flashboard form three-face sealing at the bottom and two sides, the upper part of the U-shaped sealing seat is sealed by filling materials arranged at the upper part of the valve body and pressing a packing gland by using the stud and the nut to form sealing, the top of the valve body is provided with a middle connecting plate which is fixed on the valve body by using a hexagon bolt, a fully-closed shield is arranged on the middle connecting plate and is fixed by using the stud and the nut, the upper part of the flashboard is provided with a cross beam and is fixed by using a screw, the cross beam moves up and down to drive the flashboard to open and close a gate, the whole movement is in the fully-closed shield, the whole movement is ensured not to be contacted with external mud, the safe operation of the front-end gate is ensured in the closed environment.
As shown in fig. 2, the top of the valve body is provided with a middle connecting plate, holes are formed in two sides of the middle connecting plate, two driving oil cylinders are fixed, piston rods of the driving oil cylinders are connected with two ends of a cross beam, the piston rods drive the cross beam to move up and down, the upper parts are arranged in a fully-closed shield, the driving oil cylinders are provided with a lower oil port and an upper oil port, the cross beam drives the flashboard to move up to open a gate when the upper oil port discharges oil, the cross beam drives the flashboard to move down to close the gate when the lower oil port discharges oil, and the double-acting driving oil cylinders on two sides effectively reduce the height of a front end gate, so that the problem of insufficient space of a shield of the shield machine is solved.
As shown in FIG. 3, milling L-shaped sealing grooves in the middle sections of the right half valve body and the left half valve body, placing a U-shaped sealing seat, wherein the sealing end face of the U-shaped sealing seat is not higher than the flow surfaces of the right half valve body and the left half valve body, so that the flow passage is free from influencing the obstruction of slurry flow, slag can not be accumulated, a flashboard and the U-shaped sealing seat are matched with each other to form a V-shaped section, when the flashboard descends in place, the flashboard contacts with the U-shaped sealing seat to form sealing specific pressure to realize sealing, three-sided reliable sealing is realized, the U-shaped sealing seat is arranged between the right half valve body and the left half valve body, and the right half valve body and the left half valve body are fixed by stud bolts and nuts.
As shown in FIG. 4, the U-shaped sealing seat is formed by rubber, adopts a T-shaped cross section design, is designed and fixed between the right half valve body and the left half valve body, is extruded and sealed, simultaneously solves the problem of external sealing of the gate, adopts a double-peak shape at the contact sealing position with the valve body, and when the valve plate descends in place, the middle valley is contacted with the three sides of the valve plate to form the three-side sealing of the front end gate, thereby realizing the mud blocking function.
Preferentially, the U-shaped sealing seat adopts a U-shaped design with a T-shaped section, and the left half valve body and the right half valve body are provided with L-shaped grooves corresponding to the U-shaped sealing seat.
Preferably, the cross beam, the flashboard and the piston rod of the driving oil cylinder are all sealed in the fully-sealed protective cover.
Preferentially, an upper oil port is formed in the upper end of the driving oil cylinder, and a lower oil port is formed in the lower end of the driving oil cylinder.
Preferentially, the inner diameter of the packing is not smaller than the thickness of the flashboard, the number of the packing is four, and the middle part of the packing gland is provided with a hole which is matched with the flashboard.
Preferably, the shape of the groove is rectangular, and the depth of the groove is not greater than the thickness of the left half valve body.
Preferably, the sum of the thicknesses of the mounting seat and the fixing plate is not greater than the depth of the groove, and the diameter of the pulley is not less than the depth of the groove.
(III) beneficial effects
Compared with the prior art, the invention provides the front end gate for the shield machine, which has the following beneficial effects:
the front end gate for the shield machine adopts a flat bottom design through the bottom of the flow channel, no interference to medium flow is caused, slag accumulation is avoided, the valve body adopts a symmetrical two-half design, the valve body is connected by bolts, the manufacturing process is simple, the interchangeability of parts is strong, the sealing seat adopts a U-shaped design and the cross section shape is a T-shaped design, the left and right half valve bodies are provided with corresponding L-shaped grooves for fixing the U-shaped cross section sealing seat, the sealing between the two half valve bodies can be realized, the sealing between the two sides of the gate plate and the bottom of the gate plate and the valve body can be realized when the gate plate is closed, the top of the gate plate is sealed by adopting a packing gland, namely, the sealing of the top of the gate plate is realized, and the sealing can be realized by adopting a fastening bolt or increasing a packing form when the top is leaked, thereby the effect of convenient maintenance is achieved.
This shield constructs machine front end gate, be equipped with the crossbeam through the flashboard top, the crossbeam adopts the fix with screw with the flashboard, the crossbeam both sides link to each other with driving cylinder's piston rod, driving cylinder fixes in the valve body both sides, realize double-cylinder drive, realized that oversized gate is reliably opened and close, adopt double-cylinder two side control gate to open and close simultaneously, effectively reduced the height of front end gate, the installation problem that shield space is not enough before having solved the shield machine, front end gate upper portion is equipped with totally closed guard shield, when the flashboard is fully opened, the piston rod of flashboard and driving cylinder is all in totally closed guard shield's inside, all moving parts have been realized in the confined environment, keep apart with outside mud, guarantee the safe operation of front end gate.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left-hand structural schematic diagram of the present invention;
FIG. 3 is a schematic view of a U-shaped seal seat according to the present invention;
FIG. 4 is a partially enlarged schematic illustration of the structure of portion A of FIG. 1 in accordance with the present invention;
FIG. 5 is a partially enlarged schematic illustration of the structure of the portion B of FIG. 1 in accordance with the present invention;
FIG. 6 is a schematic diagram of a groove structure according to the present invention.
In the figure: 1 partition plate, 2 totally-enclosed shields, 3 cross beams, 4 nuts, 5 stud bolts, 6 screws, 7 packing gland, 8 hexagon bolts, 9 middle channel connecting plates, 10 packing, 11 flashboard, 12U type sealing seat, 13 right half valve body, 14 left half valve body, 15 driving oil cylinders, 16 grooves, 17 mounting seats, 18 fixing plates, 19 connecting rods and 20 pulleys.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, a front end gate for a shield machine comprises a partition plate 1, wherein the left side of the partition plate 1 is fixedly connected with a right half valve body 13 through a hexagonal bolt 8, the right half valve body 13 is fixedly connected with a left half valve body 14 through a nut 4 and a stud 5, the left side of the right half valve body 13 is clamped with a U-shaped sealing seat 12 clamped with the right side of the left half valve body 14, the U-shaped sealing seat 12 adopts a U-shaped and T-shaped cross section, the left half valve body 14 and the right half valve body 13 are provided with L-shaped grooves corresponding to the U-shaped sealing seat 12, the left side of the right half valve body 13 is movably connected with a flashboard 11 movably connected with the right side of the left half valve body 14, the bottom of the flashboard 11 is contacted with the front side and the rear side of the U-shaped sealing seat 12, the top of the flashboard 11 is fixedly connected with a cross beam 3 through a screw 6, the right side of the left half valve body 14 is provided with two grooves 16, the shape of the groove 16 is rectangle, the depth of the groove 16 is not more than the thickness of the left half valve body 14, the inner side wall of the groove 16 is fixedly connected with two mounting seats 17, the right side of the mounting seats 17 is clamped with a connecting rod 19, the right side of the mounting seats 17 is fixedly connected with a fixing plate 18 through a hexagonal bolt 8, the sum of the thicknesses of the mounting seats 17 and the fixing plate 18 is not more than the depth of the groove 16, the diameter of a pulley 20 is not less than the depth of the groove 16, the middle part of the connecting rod 19 is fixedly connected with a pulley 20 which is contacted with the left side of a flashboard 11, the pulley 20 is contacted with the flashboard 11, the flashboard 11 is impacted by mud when moving up and down, the flashboard 11 is clung to the left half valve body 14, the flashboard is inconvenient to move and is worn, the pulley 20 can play the roles of reducing friction and reducing the wear of the flashboard 11, the tops of the left half valve body 14 and the right half valve body 13 are fixedly connected with a middle channel connecting plate 9 through the hexagonal bolt 8, the top joint of left half valve body 14 has the packing 10 that cup joints with flashboard 11, the internal diameter of packing 10 is not less than the thickness of flashboard 11 and the quantity of packing 10 is four, because the hole of flashboard 11 looks adaptation is seted up at the middle part of packing gland 7, the top joint of packing 10 and right half valve body 13, packing 10 cup joints with well connecting plate 9, the packing gland 7 of the top contact with packing 10 has been cup jointed at the middle part of well connecting plate 9, packing gland 7 passes through stud 5 and nut 4 and well connecting plate 9 fixed connection, the top of well connecting plate 9 passes through stud 5 and nut 4 fixedly connected with totally closed guard 2, the crossbeam 3, flashboard 11 and the piston rod of actuating cylinder 15 are all in the inside of sealing at totally closed guard 2, the bottom of well connecting plate 9 passes through stud 5 and nut 4 fixedly connected with actuating cylinder 15, the oil feed port has been seted up to the upper end of actuating cylinder 15 and the lower hydraulic fluid port has been seted up to the lower extreme of actuating cylinder 15.
As shown in fig. 1, the right side of the partition board 1 is the mud excavated during the tunneling of the shield machine, the left side is provided with a front end gate, the front end gate is fixed on the partition board 1 through a hexagonal bolt 8, when the shield machine works normally, a gate plate 11 of the front end gate is opened, the excavated mud is conveyed to a mud pipe through a runner, when the shield machine overhauls, the front end gate acts, the gate plate 11 is closed in place, the mud on the right side is isolated, and the left side of the gate plate 11 is pressureless for overhauling.
As shown in figure 1, a U-shaped sealing seat 12 and a flashboard 11 are arranged in a right half valve body 13 and a left half valve body 14, the U-shaped sealing seat 12 and the flashboard 11 are fixed by a stud 5 and a nut 4, three-face seals at the bottom and two sides are formed, the upper seal is formed by a packing 10 arranged at the upper part of the valve body, the packing gland 7 is pressed by the stud 5 and the nut 4 to form a seal, a middle channel connecting plate 9 is arranged at the top of the valve body, the hexagon bolt 8 is used for fixing the valve body, a totally-enclosed shield 2 is arranged on the middle channel connecting plate 9 and is fixed by the stud 5 and the nut 4, a cross beam 3 is arranged at the upper part of the flashboard 11 and is fixed by a screw 6, the cross beam 3 moves up and down to drive the flashboard 11 to open and close a gate, the whole movement is in the totally-enclosed shield 2, so that the whole movement is not contacted with external slurry, all moving parts are in a closed environment, and the safe operation of the front-end gate is ensured.
As shown in fig. 2, the top of the valve body is provided with a middle connecting plate 9, holes are formed in two sides of the middle connecting plate 9, two driving oil cylinders 15 are fixed, piston rods of the driving oil cylinders 15 are connected with two ends of a cross beam 3, the piston rods drive the cross beam 3 to move up and down, the above components are all arranged in a totally-enclosed shield 2, the driving oil cylinders 15 are provided with a lower oil port and an upper oil port, the cross beam 3 drives a flashboard 11 to move up to realize gate opening when oil is discharged from the upper oil port, the cross beam 3 drives the flashboard 11 to move down to realize gate closing when oil is discharged from the lower oil port, and the double-acting driving oil cylinders 15 on two sides are arranged to effectively reduce the height of a front-end gate, so that the problem of insufficient space of a shield machine is solved.
As shown in fig. 3, an L-shaped sealing groove is milled in the middle section of the right half valve body 13 and the left half valve body 14, a U-shaped sealing seat 12 is arranged, the sealing end face of the U-shaped sealing seat 12 is not higher than the flowing face of the right half valve body 13 and the left half valve body 14, the flow passage is free from influencing the flow of slurry, slag is not accumulated, three faces matched with the gate plate 11 and the U-shaped sealing seat 12 form a V-shaped section, when the gate plate 11 descends in place, the gate plate 11 contacts with the U-shaped sealing seat 12 to form sealing specific pressure, the sealing is realized, three faces are reliably sealed, the U-shaped sealing seat 12 is arranged between the right half valve body 13 and the left half valve body 14, and the right half valve body 13 and the left half valve body 14 are fixed by the double-headed bolts 5 and the nuts 4.
As shown in fig. 4, the U-shaped sealing seat 12 is formed by rubber, adopts a T-shaped cross section design, is designed and fixed between the right half valve body 13 and the left half valve body 14, the U-shaped sealing seat 12 is extruded and sealed, meanwhile, the external sealing of the gate is solved, the contact sealing position with the valve body 11 adopts a double-peak shape, when the valve plate 11 descends in place, the middle valley is contacted with the three sides of the valve plate 11, so that the three-side sealing of the front end gate is formed, and the blocking slurry function is realized.
When the device is used, the oil inlet is driven by the oil cylinder 15, the oil outlet is driven by the oil inlet, the piston rod is driven to move up the flashboard 11 to the top of the rectangular runner, the bottom of the flashboard 11 is higher than the top of the rectangular runner, the gate is fully opened, slurry medium is output by the slurry pump through the rectangular runner, during equipment maintenance, the oil inlet is driven by the oil inlet, the oil outlet is driven by the oil rod to move down, the gate is driven by the piston rod, the gate 11 is driven to move down to the bottom of the rectangular runner, the bottom of the flashboard 11 is contacted with the bottom of the U-shaped sealing seat 12, two sides of the flashboard 11 are contacted with two sides of the U-shaped sealing seat 12, the three sides of the flashboard 11 are extruded with the U-shaped sealing seat 12 to form sealing specific pressure seal, the upper part of the flashboard 11 is tightly pressed by the packing gland 7 to seal the packing 10, the closing of the gate can ensure the pressure of the excavated surface, and the equipment safety maintenance can be realized.
In summary, the bottom of the runner adopts a flat bottom design, no obstruction affecting medium flow is caused, slag accumulation is avoided, the valve body adopts a symmetrical two-half design, the valve body is connected by bolts, the manufacturing process is simple, the interchangeability of parts is strong, the U-shaped sealing seat 12 adopts a U-shaped design and the cross section shape is a T-shaped design, the left half valve body 14 and the right half valve body 13 are provided with corresponding L-shaped grooves for fixing the U-shaped cross section sealing seat, the sealing between the two half valve bodies can be realized, the sealing between the two sides of the flashboard 11 and the bottom and the valve body can be realized when the flashboard 11 is closed, the top of the flashboard 11 is sealed by adopting the packing 10, the packing 10 is tightly pressed by adopting the packing gland 7, the top sealing of the flashboard 11 is realized, and the sealing can be realized by adopting a fastening bolt or increasing the packing 10 form when the top is leaked, thereby the effect of convenient maintenance is achieved.
The top end of the gate 11 is provided with the cross beam 3, the cross beam 3 and the gate 11 are fixed by the bolts 6, two sides of the cross beam 3 are connected with piston rods of the driving oil cylinders 15, the driving oil cylinders 15 are fixed on two sides of the valve body, double-cylinder driving is achieved, the ultra-large size gate is reliably opened and closed, meanwhile, double-cylinder double-side control gate opening and closing are adopted, the height of the front end gate is effectively reduced, the problem of insufficient space of a shield in front of a shield machine is solved, the upper part of the front end gate is provided with the totally-enclosed shield 2, when the gate 11 is fully opened, the gate 11 and the piston rods of the driving oil cylinders 15 are all arranged in the totally-enclosed shield 2, all moving parts are in a closed environment and isolated from external slurry, and safe operation of the front end gate is guaranteed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a shield constructs machine front end gate, includes baffle (1), its characterized in that: the left side of baffle (1) is fixedly connected with right half valve body (13) through hexagon bolt (8), right half valve body (13) is fixedly connected with left half valve body (14) through nut (4) and stud (5), the left side joint of right half valve body (13) has U-shaped sealing seat (12) with the right side joint of left half valve body (14), the left side swing joint of right half valve body (13) has flashboard (11) with the right side swing joint of left half valve body (14), the bottom and the preceding, both sides and the U-shaped sealing seat (12) of flashboard (11) contact, the top of flashboard (11) is through screw (6) fixedly connected with crossbeam (3), two recess (16) have been seted up at the top on the right side of left half valve body (14), the inside wall fixedly connected with two mount pads (17) of recess (16), the right side joint of mount pad (17) has connecting rod (19), the right side of mount pad (17) is through hexagon bolt (8) fixedly connected with fixed plate (18), the middle part fixedly connected with of connecting rod (19) has flashboard (20) and the half valve body (13) of left half valve body (13) in contact through hexagon bolt (20), the top joint of left half valve body (14) has filler (10) with flashboard (11) cup joints, filler (10) cup joints with the top joint of right half valve body (13), filler (10) cup joints with well way connecting plate (9), well way connecting plate (9) middle part cup joints with filler gland (7) of the top contact of filler (10), filler gland (7) pass through stud (5) and nut (4) and well way connecting plate (9) fixed connection, the top of well way connecting plate (9) passes through stud (5) and nut (4) fixedly connected with totally closed guard shield (2), the bottom of well way connecting plate (9) passes through stud (5) and nut (4) fixedly connected with actuating cylinder (15); the U-shaped sealing seat (12) is of a U-shaped design, the cross section of the U-shaped sealing seat is of a T-shaped design, and L-shaped grooves corresponding to the U-shaped sealing seat (12) are formed in the left half valve body (14) and the right half valve body (13); the piston rods of the cross beam (3), the flashboard (11) and the driving oil cylinder (15) are all sealed in the fully-sealed shield (2).
2. The front end gate for a shield machine according to claim 1, wherein: an oil feeding port is formed in the upper end of the driving oil cylinder (15), and an oil discharging port is formed in the lower end of the driving oil cylinder (15).
3. The front end gate for a shield machine according to claim 1, wherein: the inner diameter of the packing (10) is not smaller than the thickness of the flashboard (11), the number of the packing (10) is four, and the middle part of the packing gland (7) is provided with a hole which is matched with the flashboard (11).
4. The front end gate for a shield machine according to claim 1, wherein: the shape of the groove (16) is rectangular, and the depth of the groove (16) is not greater than the thickness of the left half valve body (14).
5. The front end gate for a shield machine according to claim 1, wherein: the sum of the thicknesses of the mounting seat (17) and the fixing plate (18) is not greater than the depth of the groove (16), and the diameter of the pulley (20) is not less than the depth of the groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109458466B true CN109458466B (en) | 2023-08-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111075461A (en) * | 2019-12-31 | 2020-04-28 | 安徽铜都流体科技股份有限公司 | Dual-mode system dumping gate |
| CN111927970B (en) * | 2020-08-22 | 2022-07-26 | 池州德特机电设备有限公司 | Electro-hydraulic ore conveying flat gate system and process |
| CN112554895B (en) * | 2020-12-23 | 2023-07-04 | 安徽铜都流体科技股份有限公司 | High performance stagnant water gate that drains off soil |
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| CN104006177A (en) * | 2013-02-22 | 2014-08-27 | 江苏天泰电站阀门有限公司 | Expanding-type K-shaped-flashboard gate valve |
| CN207268309U (en) * | 2017-08-04 | 2018-04-24 | 立信阀门集团有限公司 | Double hydraulic control whole-closed mud gate |
| CN108050264A (en) * | 2017-11-28 | 2018-05-18 | 安徽荣达阀门有限公司 | A kind of plain base gate valve being easily installed with cleaning |
| CN108343756A (en) * | 2018-04-12 | 2018-07-31 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
| CN207750508U (en) * | 2018-07-10 | 2018-08-21 | 安徽铜都流体科技股份有限公司 | Three face formula cutting ferrules of one kind are without the hard seal gate valve of groove |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104006177A (en) * | 2013-02-22 | 2014-08-27 | 江苏天泰电站阀门有限公司 | Expanding-type K-shaped-flashboard gate valve |
| CN207268309U (en) * | 2017-08-04 | 2018-04-24 | 立信阀门集团有限公司 | Double hydraulic control whole-closed mud gate |
| CN108050264A (en) * | 2017-11-28 | 2018-05-18 | 安徽荣达阀门有限公司 | A kind of plain base gate valve being easily installed with cleaning |
| CN108343756A (en) * | 2018-04-12 | 2018-07-31 | 浙江锐步流体控制设备有限公司 | Dual-seal knife gate valve |
| CN207750508U (en) * | 2018-07-10 | 2018-08-21 | 安徽铜都流体科技股份有限公司 | Three face formula cutting ferrules of one kind are without the hard seal gate valve of groove |
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| CN109458466A (en) | 2019-03-12 |
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