CN103850181A - Separable sealing structure of dragline anchor and method for realizing sealing of anchor - Google Patents
Separable sealing structure of dragline anchor and method for realizing sealing of anchor Download PDFInfo
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- CN103850181A CN103850181A CN201410042487.XA CN201410042487A CN103850181A CN 103850181 A CN103850181 A CN 103850181A CN 201410042487 A CN201410042487 A CN 201410042487A CN 103850181 A CN103850181 A CN 103850181A
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Abstract
The invention discloses a separable sealing structure of a dragline anchor. The separable sealing structure comprises a sealing structure at an anchor head end and a sealing structure in an anchor head, wherein the sealing structure at the anchor head end comprises an anchor plate, a base plate and an O-shaped sealing ring I arranged on the base plate; the sealing structure in the anchor head comprises a sealing cylinder, a pressing plate, an inner sealing plate, a pressure-bearing cushion cover, an O-shaped sealing ring II, a sealing cushion cover and an outer sealing plate; the pressing plate, the inner sealing plate, the pressure-bearing cushion cover, the O-shaped sealing ring II, the sealing cushion cover and the outer sealing plate are sequentially arranged in the sealing cylinder; a connecting piece comprises a pressing rod, a pressing screw and a tightening screw; the pressing rod penetrates through a through hole II in the anchor plate and a straight-through hole II of the pressing plate, directly reaches a blind hole I of the inner sealing plate and clamps the pressing plate around a shoulder; the pressing screw is tightly attached to the pressing rod for ejecting the pressing rod; the pressing rod ejects the pressing plate; one end of the pressure-bearing cushion cover is tightly attached to the pressing plate and is ejected; the other end of the pressure-bearing cushion cover is tightly attached to the sealing cushion cover and extrudes the sealing cushion cover. The separable sealing structure of the dragline anchor is reliable in sealing; the disassembly and the assembly for multiple times can be realized; the maintenance and the operation are easily realized; meanwhile, steel stranded wires can be singly changed.
Description
Technical field
The present invention relates to a kind of hermetically-sealed construction and realize sealing method, particularly dragline anchorage hermetically-sealed construction and realize the method for ground tackle sealing.
Background technology
Steel strand intermediate plate group anchor is mainly made up of anchor slab and intermediate plate, and intermediate plate into a cone shape, is two or three-chip type, keeps being applied to the prestressing force on steel strand thereby sting to hold in the bellmouth that steel strand wedging enter anchor slab by intermediate plate inner hole thread; Common prestressed inefficacy, often because the corrosion of steel strand and ground tackle causes.Prior art is effectively solved for the corrosion of steel strand, and therefore, the aseptic technic of ground tackle has become prestressed crucial research field.Ground tackle anticorrosion is divided into again outside anticorrosion and inner anticorrosion, outside is anticorrosion show generally adopt grease or oil paint coating anticorrosion.And inner anticorrosion have following several:
The first is " patent announcement number be called sealing device for CN2301582Y name " disclosed hermetically-sealed construction, as Fig. 9, packing inner sealing plate 23 into support tube is enclosed within respectively on every steel strand 26 through hole on it, between every steel strand 26 and inner sealing plate 23, be inserted with respectively sealing ring 24, drive loss prevention cover on it to move and top pressure seal ring 24 by promoting external seal plate 25, make sealing ring 24 get into the gap between steel strand 26 and inner sealing plate 23 through holes and block, thereby realize the sealing of ground tackle inside; The problem that this structure exists is: sealing ring itself is not in groove, and groove gap is less, trough rim is sharp-pointed, sealing ring is not only easily scratched impaired after pressurized, and not inserting gap completely is tightly bonding steel strand surface after pressurized, add that steel strand surface is irregular cycle, the area that sealing ring contacts with steel strand surface is little, sealing effectiveness is difficult to guarantee, easily occurs oil leakage phenomenon.
The second structure is as Figure 10, sealing plate 37 is installed below for anchor slab 36, sealing plate 37 is provided with consistent with anchor slab 36 positions, hole, the hole of aperture ratio steel strand 33 slightly larger in diameter, seal grease 32 is squeezed into and in anchor slab 36 holes, carries out anticorrosionly from intermediate plate 35 with force feed equipment, its structure has following problem:
1, the easy degradation and decomposition of anticorrosion grease, aqueous vapor and other medium easily enter, and are difficult to control the amount of clamp-oning of grease;
2, because the hole of sealing plate is slightly larger than steel strand diameter, steel strand, through difficulty, even if pass by force, also can cause sealing plate to damage, and impact sealing, causes leakage;
3, can not realize the requirement of single replacing steel strand.
The third for China Patent Publication No. be " the disclosed a kind of anchorage sealing structure of CN101487231A ", as shown in figure 11, this structure has increased hole for injecting glue 38, oil storage tank 39 and fluid sealant 40 on the second architecture basics, overcome the shortcoming of the second anchorage corrosion protection, ground tackle inside is sealed completely, prevent that aqueous vapor and other medium from entering, and reaches corrosion-resistant requirement.But also there is following problem in this structure simultaneously:
1, sealing is solidified after adopting fluid sealant to fill in anchor slab and sealing plate and the steel strand gap between separately, is solidified into an entirety and causes inconvenient secondary dismounting due to rear total being installed at encapsulating, affects maintainability.
2, adopt glue-injection machine to carry out the also injection rate of bad control fluid sealant of injecting glue to gap, on-site construction operations difficulty does not still reduce.
3, can not realize the requirement of single replacing steel strand.
Summary of the invention
The object of the present invention is to provide a kind of " removable dragline anchorage hermetically-sealed construction ", the sealing of this removable dragline anchorage hermetically-sealed construction is reliable, can realize being dismounted for multiple times, easy care and easy to operate, can also realize single replacing steel strand simultaneously, to overcome above-mentioned three kinds of existing shortcomings of anchorage sealing structure and deficiency, the present invention provides the method for utilizing this removable dragline anchorage hermetically-sealed construction to realize ground tackle sealing simultaneously.
For addressing the above problem, the technical solution used in the present invention is: a kind of removable dragline anchorage hermetically-sealed construction, comprise the hermetically-sealed construction in hermetically-sealed construction and the anchor head of anchor head end, it is characterized in that: the hermetically-sealed construction of described anchor head end comprises the anchor slab for anchoring clamping plate, backing plate, be arranged on the O RunddichtringO I on backing plate, described anchor slab one end face inside is useful on the anchor hole of placing intermediate plate anchoring steel strand, anchor hole quantity is consistent with steel strand radical, anchor hole leading portion is taper hole, back segment is straight hole, straight hole mouth has step, on anchor slab, have two anchor slab clear opening I for oiling of one-in-and-one-out, for the anchor slab clear opening II that compressor arm is installed, for the anchor slab clear opening III that attachment screw is installed, anchor slab other end end face and backing plate are close to,
Described backing plate one end face and anchor slab are close to, the other end is connected threadably with sealing drum, itself and sealing drum junction are coated with one deck fluid sealant, on backing plate, there are a ring-like seal groove and backing plate screw hole, attachment screw is tightened against on backing plate screw hole anchor slab is connected with backing plate through anchor slab clear opening III, O RunddichtringO I is arranged in ring-like seal groove, and pressurized is realized the end face seal between anchor slab and backing plate;
Hermetically-sealed construction in described anchor head comprises sealing drum, pressure strip, inner sealing plate, pressure-bearing cushion cover, O RunddichtringO, sealing cushion cover, external seal plate and hold-down ring, and connector comprises compressor arm, housing screw and stretching screw;
Sealing drum one end is connected threadably with backing plate, and the other end is connected with hold-down ring threadably;
Pressure strip, inner sealing plate, pressure-bearing cushion cover, O RunddichtringO II, sealing cushion cover and external seal plate are installed successively in sealing drum;
Described pressure strip is plectane, on it, have have consistent with steel strand quantity, for the pressure strip clear opening I of steel strand being installed and for the pressure strip clear opening II of compressor arm is installed;
Described inner sealing plate is short cylinder, on short cylinder, have quantity consistent with steel strand quantity, for install sealing cushion cover installation through hole, blind hole I, its another side of on inner sealing plate and pressure strip adjacent surface, having for compressor arm is installed have the blind hole II for stretching screw is installed, and have the chamfering for mounting O-shaped sealing ring II in this face outer rim;
Described external seal plate is elongated cylinder, has screw on it, one end and inner sealing plate close contact, and the other end is close to hold-down ring, and on the contact surface of inner sealing plate and external seal plate, inner sealing plate outer rim is provided with O RunddichtringO II;
Described pressure-bearing cushion cover, sealing cushion cover are hollow cylindrical, and its quantity is consistent with steel strand quantity;
Described compressor arm is the shaft-like part with 3 grades of steps;
Under confined state, compressor arm is through the blind hole I of the through hole II on anchor slab and the through inner sealing plate of pressure strip clear opening II, and ring shoulder blocks pressure strip; Housing screw is close to compressor arm, and compressor arm is pushed up to pressure; Compressor arm pushes up pressure to pressure strip;
Pressure-bearing cushion cover one end is close to pressure strip and pressed by top, and the other end is close to sealing cushion cover, and sealing mat cover is pushed;
The supporting elastic packing cushion cover one end of quantity and steel strand is close to pressure-bearing cushion cover and is squeezed, and the other end is close to external seal plate end face, and periphery is close to the sealing cushion cover of inner sealing plate through hole hole face is installed, and inner hole surface is held and wrapped up in steel strand; In the time that pressure-bearing cushion cover pushes it, swollen to each contact surface support under the restriction of inner sealing plate, external seal plate, also steel strand are bonded tightly, thereby realize the sealing of steel strand in inner sealing plate and perforation place of external seal plate simultaneously;
O RunddichtringO II forms compression and realizes the sealing of inner sealing plate, external seal plate, sealing drum three place's contact surfaces between inner sealing plate and external seal plate;
Stretching screw, by inner sealing plate and the tension of external seal plate, compresses O RunddichtringO; Hold-down ring: externally sealing plate is implemented to support;
Meanwhile, in the space between sealing drum and anchor slab and backing plate, fill anticorrosion grease, on pouring orifice screw shutoff anchor slab for the anchor slab clear opening I of oiling.
Its another relevant technical scheme is: a kind of method of dragline anchorage inner sealing, and it is to utilize the above-mentioned removable dragline anchorage hermetically-sealed construction of the present invention to realize the method for ground tackle inner sealing, its installation step is as follows:
The hermetically-sealed construction of A, installation anchor head end:
1. anchor slab, backing plate and sealing drum are installed successively
O RunddichtringO I is placed in the ring-like seal groove of backing plate, and an end face and anchor slab that backing plate is placed with O RunddichtringO I are close to, the other end is connected threadably with sealing drum, and junction applies fluid sealant;
Hermetically-sealed construction in B, installation anchor head:
1. pressure strip, pressure-bearing cushion cover, inner sealing plate, external seal plate and hold-down ring are installed successively in sealing drum, between sealing drum and hold-down ring, are threaded connection; O RunddichtringO II is arranged between inner sealing plate and external seal plate, and sealing cushion cover is enclosed within the sealing cushion cover of inner sealing plate and installs in through hole;
2. the blind hole I through the anchor slab clear opening II on anchor slab and the through inner sealing plate of pressure strip clear opening II by compressor arm, ring shoulder blocks pressure strip; Housing screw is close to compressor arm;
C, installation steel strand:
Single steel strand is passed outside anchor slab through the anchor hole on pressure strip clear opening, the anchor slab of the endoporus of the sealing cushion cover installing hole of the external seal plate clear opening of external seal plate, inner sealing plate, pressure-bearing cushion cover, pressure strip, load onto intermediate plate anchoring;
D, enforcement sealing operation:
1. by stretching screw by the O type circle tension on inner sealing plate and external seal edges of boards, O type circle be squeezed between inner sealing plate and external seal plate and sealing drum three places and realize the sealing of three place's contact surfaces;
2. screw respectively housing screw, and then compressor arm is pressed on top, compressor arm head positions through pressure strip, and leave a ring shoulder top and press pressure strip, between pressure strip and inner sealing plate, leave the displacement that guarantees that sealing cushion cover enough compresses, make pressure strip stressed rear to the pressure-bearing cushion cover application of force, the stressed rear continuation of pressure-bearing cushion cover is pushed sealing mat cover, sealing mat is enclosed within inner sealing plate, swollen to each contact surface support under the restriction of external seal plate, also steel strand are bonded tightly simultaneously, thereby reach steel strand in the sealing cushion cover installation through hole of interior sealing version and the sealing at external seal plate clear opening place,
3. between anchor slab and backing plate, seal by the O RunddichtringO I being placed in the ring-like seal groove of backing plate;
4. between backing plate and sealing drum, being threaded connection surface coating fluid sealant seals;
5. inject anticorrosion grease at pouring orifice screw place, until anticorrosion grease oozes out and screws pouring orifice screw again from intermediate plate and steel strand gap;
Above-mentioned steps completes, and realizes the inner sealing of whole ground tackle.
Owing to taking above technical scheme, the present invention's removable dragline anchorage hermetically-sealed construction and the method that realizes ground tackle sealing thereof have following characteristics and beneficial effect:
1, sealing is reliable: the present invention's removable dragline anchorage hermetically-sealed construction adopts multiple sealing means to different parts, thereby reaches sealing completely reliably:
1. every steel strand of the present invention's removable dragline anchorage hermetically-sealed construction are that the sealing cushion cover having by its overcoat is realized in the sealing of inner sealing plate 11 and 16 perforation place of external seal plate: because sealing cushion cover is can respectively make to the elastomeric material expanding to other during by unidirectional pressurized, by the extruding to sealing cushion cover, can be swollen to each contact surface support, also the steel strand of irregular surface are bonded tightly, thereby reach the sealing to each contact surface simultaneously.
2. by stretching screw by the O type circle tension on inner sealing plate and external seal edges of boards, O type circle be squeezed between inner sealing plate and external seal plate and sealing drum three and realize the sealing of three place's contact surfaces.
2, on the anchor slab 6 of the present invention's removable dragline anchorage hermetically-sealed construction, have two clear opening I 62 for oiling of one-in-and-one-out, make the injection of anticorrosion grease be easy to field control, reduce difficulty of construction.
3, make because sealing cushion cover adopts elastomeric material, it is shaped as regular cylindrical, even if be extruded also not subject to damage, can realize being dismounted for multiple times, easy care and easy to operate, can also realize single replacing steel strand simultaneously.
Below, the removable dragline anchorage hermetically-sealed construction to the present invention and the technical characterictic of realizing the method for ground tackle sealing thereof are further described in conjunction with the accompanying drawings and embodiments.
Accompanying drawing explanation
Fig. 1 is the structural representation (being provided with under steel strand state) of the present invention's removable dragline anchorage hermetically-sealed construction;
Fig. 2-1～Fig. 2-2nd, the anchored framework schematic diagram of removable dragline anchorage hermetically-sealed construction;
Fig. 2-1: front view, Fig. 2-2: left view;
Fig. 3-1～Fig. 3-2nd, the backing structure schematic diagram of removable dragline anchorage hermetically-sealed construction:
Fig. 3-1: front view, Fig. 3-2: left view;
Fig. 4 is the pressure strip structural representation of removable dragline anchorage hermetically-sealed construction;
Fig. 5 is the inner sealing plate structural representation of removable dragline anchorage hermetically-sealed construction;
Fig. 6 is the pressure-bearing cushion cover structural representation of removable dragline anchorage hermetically-sealed construction;
Fig. 7 is the sealing mat nested structure schematic diagram of removable dragline anchorage hermetically-sealed construction;
Fig. 8 is the external seal plated construction schematic diagram of removable dragline anchorage hermetically-sealed construction;
Fig. 9 is the structural representation of one of prior art sealing device;
Figure 10 is the structural representation of two anchorage sealing structures of prior art;
Figure 11 is the structural representation of three anchorage sealing structures of prior art.
Critical piece label declaration in Fig. 1-Fig. 8:
1-steel strand, 2-intermediate plate, 3-housing screw, 4-compressor arm, the anticorrosion grease of 5-;
6-anchor slab, 61-anchor hole, 62-anchor slab clear opening I, 63-anchor slab clear opening II, 64-anchor slab clear opening III;
1-felt collar 2-gland 3-inner sealing plate 4-sealing ring 5-external seal plate 6-steel strand 7-loss prevention cover
7-O RunddichtringO I, 8-backing plate, the ring-like seal groove of 81-, 82-backing plate screw hole; 9-sealing drum;
10-pressure strip, 101-pressure strip clear opening I, 102-pressure strip clear opening II;
11-inner sealing plate, 111-sealing cushion cover is installed through hole, 112-blind hole I, 113-blind hole II;
12-pressure-bearing cushion cover, 13-O RunddichtringO II, 14-seals cushion cover, 15-stretching screw;
16-external seal plate, 161-screw, 162-external seal plate clear opening, 17-hold-down ring, 18-pouring orifice screw, 19-cage ring, 20-attachment screw.
In Fig. 9-Figure 11:
21-felt collar, 22-gland, 23-inner sealing plate, 24-sealing ring, 25-external seal plate, 26-steel strand, 27-loss prevention cover, 28-sealing drum;
31-protective cover, 32-grease, 33-steel strand, 34-sealing mat, 35-intermediate plate, 36-anchor slab, 37-sealing plate, 38-hole for injecting glue, 39-storage glue groove, 40-fluid sealant.
The specific embodiment
embodiment mono-:
A kind of removable dragline anchorage hermetically-sealed construction, as shown in Figure 1, this removable dragline anchorage hermetically-sealed construction comprises the hermetically-sealed construction in hermetically-sealed construction and the anchor head of anchor head end, the hermetically-sealed construction of described anchor head end comprises the anchor slab 6 for anchoring clamping plate, backing plate 8, be arranged on the O RunddichtringO I 7 on backing plate 8, described anchor slab 6 one end face inside are useful on the anchor hole 61 of placing intermediate plate 2 anchoring steel strand, anchor hole quantity is consistent with steel strand 1 radical, anchor hole 61 leading portions are taper hole, back segment is straight hole, straight hole mouth has step, on anchor slab 6, have two clear opening I 62 for oiling of one-in-and-one-out, for the clear opening II 63 that compressor arm is installed, the clear opening III 64(that is used for attachment screw is installed is referring to Fig. 2-1～Fig. 2-2), anchor slab 6 other end end faces and backing plate 8 are close to,
Described backing plate 8 one end faces and anchor slab 6 are close to, the other end is connected threadably with sealing drum 9, itself and sealing drum 9 junctions are coated with one deck fluid sealant, on backing plate 8, there is ring-like seal groove 81 and a backing plate screw hole 82, attachment screw 20 is tightened against on backing plate screw hole 82 anchor slab 6 is connected with backing plate 8 through anchor slab clear opening III 64, O RunddichtringO I 7 is arranged in ring-like seal groove, and pressurized is realized the end face seal (referring to Fig. 1, Fig. 3-1～Fig. 3-2) between anchor slab 6 and backing plate 8
;
Hermetically-sealed construction in described anchor head comprises sealing drum 9, pressure strip 10, inner sealing plate 11, pressure-bearing cushion cover 12, O RunddichtringO 13, sealing cushion cover 14, external seal plate 16 and hold-down ring 17, and connector comprises compressor arm 4, housing screw 3 and stretching screw 15;
Sealing drum 9 one end are connected threadably with backing plate 8, and the other end is connected with hold-down ring 17 threadably;
Pressure strip 10, inner sealing plate 11, pressure-bearing cushion cover 12, O RunddichtringO II 13, sealing cushion cover 14 and external seal plate 16 are installed successively in sealing drum 9;
Described pressure strip 10 is plectane, on it, have have consistent with steel strand quantity, for the pressure strip clear opening I 101 of steel strand is installed and for pressure strip clear opening II 102(that compressor arm is installed referring to Fig. 1, Fig. 4);
Described inner sealing plate 11 is short cylinder, on short cylinder, have quantity sealing cushion cover consistent with steel strand quantity, seal cushion cover 14 for installing through hole 111 is installed, blind hole I 112, its another side of on inner sealing plate 11 and pressure strip 10 adjacent surfaces, having for compressor arm 4 is installed have the blind hole II 113 for stretching screw 15 is installed, and have the chamfering (referring to Fig. 1, Fig. 5) for mounting O-shaped sealing ring II 13 in this face outer rim;
Described external seal plate 16 is elongated cylinder, on it, have screw 161, one end and inner sealing plate 11 close contacts, the other end is close to hold-down ring 17, on the contact surface of inner sealing plate 11 and external seal plate 16, inner sealing plate 11 outer rims are provided with O RunddichtringO II 13(referring to Fig. 1, Fig. 8);
Described pressure-bearing cushion cover 12, sealing cushion cover 14 are hollow cylindrical, its quantity consistent with steel strand quantity (referring to Fig. 1, Fig. 6-Fig. 7);
Described compressor arm 4 is the shaft-like part with 3 grades of steps;
Under confined state, compressor arm 4 is through the blind hole I 112 of the through hole II 63 on anchor slab 6 and pressure strip clear opening II 102 through inner sealing plates, and ring shoulder blocks pressure strip 10; Housing screw 3 is close to compressor arm 4, and compressor arm 4 is pushed up to pressure; Compressor arm 4 pushes up pressure to pressure strip 10;
Pressure-bearing cushion cover 12 one end are close to pressure strip 10 and pressed by top, and the other end is close to sealing cushion cover 14, and sealing cushion cover 14 is pushed;
Supporting elastic packing cushion cover 14 one end of quantity and steel strand 1 are close to pressure-bearing cushion cover 12 and are squeezed, and the other end is close to external seal plate 16 end faces, and periphery is close to the sealing cushion cover of inner sealing plate 11 through hole 111 hole faces are installed, and inner hole surface is held and wrapped up in steel strand 1; In the time that pressure-bearing cushion cover 12 pushes it, swollen to each contact surface support under the restriction of inner sealing plate 11, external seal plate 16, also steel strand 1 are bonded tightly, thereby realize the sealing of steel strand 1 in inner sealing plate 11 and 16 perforation place of external seal plate simultaneously;
Stretching screw 15 is strained inner sealing plate 11 and external seal plate 16, and O RunddichtringO 13 is compressed; Hold-down ring 17: externally sealing plate 16 is implemented to support.
Simultaneously; in space between sealing drum 9 and anchor slab 6 and backing plate 8, fill anticorrosion grease 5; oil filler point I 62 on pouring orifice screw 18 shutoff anchor slabs; the cage ring 19 being enclosed within on steel strand 1 protects steel strand 1 to prevent by anchor slab 6 scratches; anticorrosion grease 5 can be seeped into intermediate plate 2 places by the anchor hole of anchor slab 6 61; reach the anti-corrosion protection to intermediate plate 2 and steel strand 1 anchoring place; anticorrosion grease 5 is connected with the outside anticorrosion grease of anchor slab 6 by the anchor hole 61 of anchor slab 6; form an overall protective system, the anticorrosion GPF (General Protection False cover that belongs in outside of anchor slab 6 pours into anticorrosion grease form.
embodiment bis-:
A method for dragline anchorage inner sealing, it is to utilize removable dragline anchorage hermetically-sealed construction described in embodiment mono-to realize the method for ground tackle inner sealing, its installation step is as follows:
The hermetically-sealed construction of A, installation anchor head end:
1. anchor slab 6, backing plate 8 and sealing drum 9 are installed successively
Hermetically-sealed construction in B, installation anchor head:
1. pressure strip 10, pressure-bearing cushion cover 12, inner sealing plate 11, external seal plate 16 and hold-down ring 17 are installed successively in sealing drum 9, between sealing drum 9 and hold-down ring 17, are threaded connection; O RunddichtringO II 13 is arranged between inner sealing plate 11 and external seal plate 16, and sealing cushion cover 14 is enclosed within the sealing cushion cover of inner sealing plate 11 and installs in through hole;
2. the blind hole I 112 through the anchor slab clear opening II 63 on anchor slab 6 and pressure strip clear opening II 102 through inner sealing plates by compressor arm 4, ring shoulder blocks pressure strip 10; Housing screw 3 is close to compressor arm 4;
C, installation steel strand:
Single steel strand is passed outside anchor slab 6 through the anchor hole 61 on pressure strip clear opening 101, the anchor slab 6 of the endoporus of the sealing cushion cover installing hole 111 of the external seal plate clear opening 162 of external seal plate 16, inner sealing plate 11, pressure-bearing cushion cover 12, pressure strip 10, load onto intermediate plate 2 anchorings;
D, enforcement sealing operation:
1. by stretching screw 15, the O type circle 13 on inner sealing plate 11 and external seal plate 16 limits is strained, O type circle 13 is squeezed between inner sealing plate 11 and external seal plate 16 and sealing drum 9 three places and realizes the sealing of three place's contact surfaces;
2. screw respectively housing screw 3, and then compressor arm 4 is pressed on top, compressor arm 4 heads position through pressure strip 10, and leave a ring shoulder top and press pressure strip 10, between pressure strip 10 and inner sealing plate 11, leave the displacement that guarantees that sealing cushion cover 14 enough compresses, make pressure strip 10 stressed rear to pressure-bearing cushion cover 12 application of forces, the stressed rear continuation of pressure-bearing cushion cover 12 is pushed sealing cushion cover 14, sealing cushion cover 14 is at inner sealing plate 11, swollen to each contact surface support under the restriction of external seal plate 16, also steel strand 1 are bonded tightly simultaneously, thereby reach steel strand 1 in the sealing cushion cover installation through hole 111 of interior sealing version 11 and the sealing at external seal plate clear opening 162 places,
3. between anchor slab 6 and backing plate 8, seal by the O RunddichtringO I 7 being placed in the ring-like seal groove 81 of backing plate 8;
4. between backing plate 8 and sealing drum 9, being threaded connection surface coating fluid sealant seals;
5. inject anticorrosion grease 5 at pouring orifice screw 18 places, until anticorrosion grease 5 oozes out and screws pouring orifice screw 18 again from intermediate plate and steel strand gap;
Above-mentioned steps completes, and realizes the inner sealing of whole ground tackle.
Claims (2)
1. a removable dragline anchorage hermetically-sealed construction, comprise the hermetically-sealed construction in hermetically-sealed construction and the anchor head of anchor head end, it is characterized in that: the hermetically-sealed construction of described anchor head end comprises the anchor slab (6) for anchoring clamping plate, backing plate (8), be arranged on the O RunddichtringO I (7) on backing plate (8), described anchor slab (6) one end face inside are useful on the anchor hole (61) of placing intermediate plate (2) anchoring steel strand, anchor hole quantity is consistent with steel strand (1) radical, anchor hole (61) leading portion is taper hole, back segment is straight hole, straight hole mouth has step, on anchor slab (6), have two anchor slab clear opening I (62) for oiling of one-in-and-one-out, for the anchor slab clear opening II (63) that compressor arm is installed, be used for installing the anchor slab clear opening III (64) of attachment screw (20), anchor slab (6) other end end face and backing plate (8) are close to,
Described backing plate (8) one end faces and anchor slab (6) are close to, the other end is connected threadably with sealing drum (9), itself and sealing drum junction are coated with one deck fluid sealant, on backing plate (8), there are a ring-like seal groove (81) and backing plate screw hole (82), attachment screw (20) is tightened against backing plate screw hole (82) through anchor slab clear opening III (64) and above anchor slab is connected with backing plate, O RunddichtringO I (7) is arranged in ring-like seal groove, and pressurized is realized the end face seal between anchor slab (6) and backing plate (8);
Hermetically-sealed construction in described anchor head comprises sealing drum (9), pressure strip (10), inner sealing plate (11), pressure-bearing cushion cover (12), O RunddichtringO II (13), sealing cushion cover (14), external seal plate (16) and hold-down ring (17), and connector comprises compressor arm (4), housing screw (3) and stretching screw (15);
Sealing drum (9) one end is connected threadably with backing plate (8), and the other end is connected with hold-down ring (17) threadably;
Pressure strip (10), inner sealing plate (11), pressure-bearing cushion cover (12), O RunddichtringO II (13), sealing cushion cover (14) and external seal plate (16) are installed successively in sealing drum (9);
Described pressure strip (10) is plectane, on it, have have consistent with steel strand quantity, for the pressure strip clear opening I (101) of steel strand being installed and for the pressure strip clear opening II (102) of compressor arm is installed;
Described inner sealing plate (11) is short cylinder, on short cylinder, have quantity consistent with steel strand quantity, for install sealing cushion cover (14) installation through hole (111), blind hole I (112), its another side of on inner sealing plate (11) and pressure strip (10) adjacent surface, having for compressor arm (4) is installed have the blind hole II (113) for stretching screw (15) is installed, and have the chamfering for mounting O-shaped sealing ring II (13) in this face outer rim;
Described external seal plate (16) is elongated cylinder, on it, have screw (161), external seal plate one end and inner sealing plate (11) close contact, the other end is close to hold-down ring (17), and on the contact surface of inner sealing plate (11) and external seal plate (16), inner sealing plate (11) outer rim is provided with O RunddichtringO II (13);
Described pressure-bearing cushion cover (12), sealing cushion cover (14) are hollow cylindrical, and its quantity is consistent with steel strand quantity;
Described compressor arm (4) is the shaft-like part with 3 grades of steps;
Under confined state, compressor arm (4) is through the blind hole I (112) of the through hole II (63) on anchor slab (6) and the through inner sealing plate of pressure strip clear opening II (102), and ring shoulder blocks pressure strip (10); Housing screw (3) is close to compressor arm (4), and compressor arm (4) is pushed up to pressure; Compressor arm (4) pushes up pressure to pressure strip (10);
Pressure-bearing cushion cover (12) one end is close to pressure strip (10) and pressed by top, and the other end is close to sealing cushion cover (14), and sealing cushion cover (14) is pushed;
Supporting elastic packing cushion cover (14) one end of quantity and steel strand (1) is close to pressure-bearing cushion cover (12) and is squeezed, the other end is close to external seal plate (16) end face, periphery is close to the sealing cushion cover of inner sealing plate (11) through hole (111) hole face is installed, and inner hole surface is held and wrapped up in steel strand (1); In the time that pressure-bearing cushion cover (12) pushes it, swollen to each contact surface support under the restriction of inner sealing plate (11), external seal plate (16), also steel strand (1) are bonded tightly, thereby realize the sealing of steel strand (1) in inner sealing plate (11) and external seal plate (16) perforation place simultaneously;
O RunddichtringO II (13) forms compression and realizes the sealing of inner sealing plate (11), external seal plate (16), sealing drum (9) three place's contact surfaces between inner sealing plate (11) and external seal plate (16);
Stretching screw (15), by inner sealing plate (11) and external seal plate (16) tension, compresses O RunddichtringO (13); Hold-down ring (17): externally sealing plate (16) is implemented to support;
Meanwhile, in the space between sealing drum (9) and anchor slab (6) and backing plate (8), fill anticorrosion grease (5), the oil filler point I (62) on pouring orifice screw (18) shutoff anchor slab.
2. a method for dragline anchorage inner sealing, is characterized in that: it is to utilize removable dragline anchorage hermetically-sealed construction described in claim 1 to realize the method for ground tackle inner sealing, and its installation step is as follows:
The hermetically-sealed construction of A, installation anchor head end:
Anchor slab (6), backing plate (8) and sealing drum (9) are 1. installed successively
O RunddichtringO I (7) is placed in the ring-like seal groove (81) of backing plate (8), and an end face and anchor slab (6) that backing plate (8) is placed with O RunddichtringO I (7) are close to, the other end is connected threadably with sealing drum (9), and junction applies fluid sealant;
Hermetically-sealed construction in B, installation anchor head:
Pressure strip (10), pressure-bearing cushion cover (12), inner sealing plate (11), external seal plate (16) and hold-down ring (17) are 1. installed successively in sealing drum (9), between sealing drum (9) and hold-down ring (17), are threaded connection; O RunddichtringO II (13) is arranged between inner sealing plate (11) and external seal plate (16), and sealing cushion cover (14) is enclosed within the sealing cushion cover of inner sealing plate (11) and installs in through hole;
2. the blind hole I (112) through the anchor slab clear opening II (63) on anchor slab (6) and the through inner sealing plate of pressure strip clear opening II (102) by compressor arm (4), ring shoulder blocks pressure strip (10); Housing screw (3) is close to compressor arm (4);
C, installation steel strand:
Single steel strand is passed outside anchor slab (6) through the anchor hole (61) on pressure strip clear opening I (101), the anchor slab (6) of the endoporus of the sealing cushion cover installing hole (111) of the external seal plate clear opening (162) of external seal plate (16), inner sealing plate (11), pressure-bearing cushion cover (12), pressure strip (10), load onto intermediate plate (2) anchoring;
D, enforcement sealing operation:
1. by stretching screw (15), O type circle (13) on inner sealing plate (11) and external seal plate (16) limit is strained, O type circle (13) is squeezed between inner sealing plate (11) and external seal plate (16) and sealing drum (9) three places and realizes the sealing of three place's contact surfaces;
2. screw respectively housing screw (3), and then compressor arm (4) is pressed on top, compressor arm (4) head positions through pressure strip (10), and leave a ring shoulder top and press pressure strip (10), between pressure strip (10) and inner sealing plate (11), leave the displacement that guarantees that sealing cushion cover (14) enough compresses, make pressure strip (10) stressed rear to pressure-bearing cushion cover (12) application of force, the stressed rear continuation of pressure-bearing cushion cover (12) is pushed sealing cushion cover (14), sealing cushion cover (14) is in inner sealing plate (11), swollen to each contact surface support under the restriction of external seal plate (16), also steel strand (1) are bonded tightly simultaneously, thereby reach the sealing that steel strand (1) are located at sealing cushion cover installation through hole (111) and the external seal plate clear opening (162) of interior sealing version (11),
3. between anchor slab (6) and backing plate (8), seal by the interior O RunddichtringO I (7) of ring-like seal groove (81) that is placed on backing plate (8);
4. between backing plate (8) and sealing drum (9), being threaded connection surface coating fluid sealant seals;
5. locate to inject anticorrosion grease (5) at pouring orifice screw (18), until anticorrosion grease (5) oozes out and screws pouring orifice screw (18) again from intermediate plate and steel strand gap;
Above-mentioned steps completes, and realizes the inner sealing of whole ground tackle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042487.XA CN103850181B (en) | 2014-01-28 | 2014-01-28 | Dismantled and assembled dragline anchorage sealed structure and realize ground tackle sealing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410042487.XA CN103850181B (en) | 2014-01-28 | 2014-01-28 | Dismantled and assembled dragline anchorage sealed structure and realize ground tackle sealing method |
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| CN103850181A true CN103850181A (en) | 2014-06-11 |
| CN103850181B CN103850181B (en) | 2016-06-01 |
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| CN105064617A (en) * | 2015-08-06 | 2015-11-18 | 江阴法尔胜住电新材料有限公司 | Anchor device sealing structure of steel stranded wire stay cable |
| CN106638309A (en) * | 2016-12-28 | 2017-05-10 | 柳州欧维姆机械股份有限公司 | Inhaul cable anchorage device adopting single sealing |
| CN107687157A (en) * | 2016-08-04 | 2018-02-13 | 株洲时代新材料科技股份有限公司 | A kind of modularization floating type ship collision prevention device |
| CN108643454A (en) * | 2018-07-17 | 2018-10-12 | 柳州欧维姆机械股份有限公司 | A kind of the prestressed group anchorage system and its construction method of internal single beam sealing |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
| CN114135058A (en) * | 2021-05-13 | 2022-03-04 | 柳州市桥厦工程管材有限公司 | Grouting-free low-retraction anchor cable system |
| CN114607100A (en) * | 2022-03-25 | 2022-06-10 | 襄阳中铁宏吉工程技术有限公司 | Anchor for stretching external prestressed cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105064617A (en) * | 2015-08-06 | 2015-11-18 | 江阴法尔胜住电新材料有限公司 | Anchor device sealing structure of steel stranded wire stay cable |
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| CN108643454A (en) * | 2018-07-17 | 2018-10-12 | 柳州欧维姆机械股份有限公司 | A kind of the prestressed group anchorage system and its construction method of internal single beam sealing |
| CN114135058A (en) * | 2021-05-13 | 2022-03-04 | 柳州市桥厦工程管材有限公司 | Grouting-free low-retraction anchor cable system |
| CN113463515A (en) * | 2021-07-18 | 2021-10-01 | 广西路建工程集团有限公司 | Construction method of double-sealing inhaul cable anchorage device |
| CN114607100A (en) * | 2022-03-25 | 2022-06-10 | 襄阳中铁宏吉工程技术有限公司 | Anchor for stretching external prestressed cable |
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