CN201544169U

CN201544169U - Underwater thread fastener

Info

Publication number: CN201544169U
Application number: CN2009201674769U
Authority: CN
Inventors: 何小剑; 陈梁; 何少华; 戚宏昶; 欧卫兵
Original assignee: Qinshan Nuclear Power Co Ltd
Current assignee: Qinshan Nuclear Power Co Ltd
Priority date: 2009-07-24
Filing date: 2009-07-24
Publication date: 2010-08-11
Anticipated expiration: 2019-07-24

Abstract

The utility model discloses an underwater thread fastener, including a long handle tool joint, a bolt sleeve joint, a coaxial T-shaped gear, a hydraulic drive oil cylinder, a guide rail, a notch, a connecting rod, a bolt sleeve for mounting the bolt and a bolt sleeve for fastening the bolt, wherein the coaxial T-shaped gear is perpendicularly engaged with the bolt sleeve joint; the bolt sleeve joint extends out of an outer frame; the upper end of the coaxial T-shaped gear is connected with the long handle tool joint; two pairs of notches are connected on the bottom of the outer frame; the notch is clamped on the pair of guide rails on the base; the right side of the outer frame is connected with the hydraulic drive oil cylinder fixed on the right side of the base; and two bolt sleeves are respectively connected with the bolt sleeve joint through a standard keyway; The underwater thread fastener has advantages of convenient use, strong adaptability, safe operation and is able to be operated remotely and reduce the underwater radioactive radiation of the nuclear power plant; and the sleeve is easy to replace.

Description

Threaded fastening device under water

Technical field

The utility model belongs to the screw threads for fastening mechanical field, is specifically related to a kind of threaded fastening device under water.

Background technology

Nuclear power plant is after long-time running, the situation that reliability reduces or part of appliance damages that some equipment can occur, this just need overhaul or transform these equipment, will come fastening with bolt for some equipment that need fix or supporting structure, in the general job environment, last bolt and tight moment are relatively simple, but because the particularity of nuclear power plant, some equipment is that personnel can't closely operate for a long time, especially the equipment in refuelling pool is the high radiation of high dose mostly, equipment can't take out more than the water surface for a long time, more impossible the diving beneath the water for a long time of personnel keeped in repair equipment, this carries out maintenance work by operating some special equipments to the equipment that is positioned under water on the coast with regard to requiring we maintainer, the such work of construction bolt just relates to bolt on the water and the transmission between the underwater operation zone, the underwater location of bolt, and bolt link such as make-up torque in the screw under water.This has just proposed very high requirement for the maintenance of underwater installation.

At present, do not see the relevant open report of threaded fastening device aspect under water both at home and abroad as yet.

Summary of the invention

The purpose of this utility model provides a kind of convenience, threaded fastening device under water reliably.

Realize the technical scheme of the utility model purpose: a kind of threaded fastening device under water comprises that long handle tool-joint, top have the bolt collar that bolt collar that the bolt collar joint of keyway, coaxial T type gear, the oil cylinder that surges, guide rail, draw-in groove, connecting rod, construction bolt use and fastening bolt are used; The upper and lower plates of housing is provided with axle, left plate is provided with the bolt collar joint, the T generating gear that axle in the housing is provided with is connected with the gear Vertical Meshing that establish bolt collar joint the inner, the upper end of axle is stretched out the upper plate of housing and is connected with the long handle tool-joint, the lower plate of housing is provided with draw-in groove, and draw-in groove is located on the pair of guide rails on the pedestal; The right plate of housing is connected with the oil cylinder that surges that is fixed on the pedestal right side by connecting rod; The outside of bolt collar joint and bolt collar with by means of cylindrical keys and keyway in addition pin confine and be connected.

Above-mentioned construction bolt is a cylindrical structure with bolt collar integral body, have a cylinder groove at its left end, inwall has keyway, outer wall is provided with a pin, the right-hand member of bolt collar is also driven a cylindrical deep trouth of ladder, is provided with spring and push rod within it successively, and spring heads on cylindrical push rod, the top countersunk head of push rod is an outer-hexagonal structure, and also is provided with two rubber round section joint rings on the cylinder groove inwall herein.

There is a smooth keyway at the middle part of above-mentioned push rod, and a columniform key that is fixed in the bolt collar vertically passes this keyway, and this bond energy is enough to slide in this keyway.

Above-mentioned fastening bolt is a cylindrical structure with bolt collar integral body, has a cylinder groove at its left end, and inwall has keyway, and outer wall is provided with a pin, and the right-hand member top of bolt collar is the countersunk head of an outer-hexagonal.

Axle in the above-mentioned housing is provided with two duplicate T generating gears of structure, and left plate is provided with and connects a duplicate bolt collar joint of structure, and passes the fixedly dividing plate of housing inboard, and dividing plate separates two T generating gears.

The beneficial effect that the utility model is obtained: (1) can carry out bolt installation and fastening to nuclear power plant's underwater installation easily; (2) all have standard keyway on bolt collar and the bolt collar joint, connect by key, be convenient to like this change bolt collar fast according to the actual size of bolt, adaptability is strong; (3) this device is provided with respectively and installs with bolt collar and the fastening bolt collar of use, has avoided like this because the bolt installation portion is suitably in when fastening accident appearance such as damaged screw; (4) because the end of installing with bolt collar has a bigger cylinder groove, and be provided with rubber " o " shape circle on its inwall, cylinder groove can just tighten construction bolt like this, calls in the water during placement construction bolt or in the underwater installation, causes fault.(5) this device is provided with two coaxial T generating gears and bolt collar joint, can install simultaneously, fastening two bolts have improved efficient.

Description of drawings

Fig. 1 is the threaded fastening device front view under water;

Fig. 2 is the threaded fastening device vertical view under water;

Fig. 3 washes the threaded fastening device right view;

The bolt collar that Fig. 4 construction bolt uses;

The A-A cutaway view of the bolt collar that Fig. 5 construction bolt uses;

The bolt collar that Fig. 6 fastening bolt uses.

Among the figure: 1-long handle tool-joint; The 2-protective sleeve; The coaxial T generating gear of 3-; The 4-housing; 5-bolt collar joint; The 6-guide rail; 7-long handle tool-joint; The 8-pedestal; The 9-screw; The 10-oil cylinder that surges; The 11-connecting rod; The 12-draw-in groove; The 13-axle; The 14-sleeve; The 15-screw; The 16-spring; The 17-push rod; The 18-jackscrew; The 19-key; The 20-countersunk head; The 21-keyway; The 22-keyway; The 23-sleeve; The 24-countersunk head; The 25-keyway; The 26-screw; The 27-round section joint ring; The 28-dividing plate.

The specific embodiment

Describe a kind of threaded fastening device under water of the present utility model in detail below in conjunction with accompanying drawing, and occupation mode.

As Figure 1-3, a kind of this device of threaded fastening device under water of the present utility model comprises that long handle tool-joint 1, top have the bolt collar 23 that bolt collar 14 that the bolt collar joint 5 of keyway, coaxial T type gear 3, the oil cylinder 10 that surges, guide rail 6, draw-in groove 12, connecting rod 11, construction bolt use and fastening bolt are used.Axle 13 runs through the upper and lower plates of casing shape housing 4, and with fixedly connected by means of bearing, axle sleeve between the upper and lower plates, on the axle 13 in the housing 4 two coaxial T generating gears 3 are installed, on the axis vertical two bolt collar joints 5 are installed on the left plate of housing 4 with axle 13, fixedly connected by means of bearing, axle sleeve between bolt collar joint 5 and the left plate, it extends in the housing 4 one section company of installation and coaxial T generating gear 3 meshed gears respectively; The bolt collar joint 5 that is positioned at housing 4 places is provided with key; Be fixed with a dividing plate 28 in the housing 4, dividing plate 28 separates two coaxial T generating gears 3.A protective sleeve 2 is installed in the outside of the long handle tool-joint 1 on the top of housing 4; Two pairs of draw-in grooves that cooperate with guide rail 12 are installed on the base plate of housing 4, two guide rails 6 are installed on the pedestal 8, the housing after the assembling is installed on the guide rail 6 by means of draw-in groove 12.Long handle tool-joint 7 and dog screw 9 are installed by the diagonal position place on the outside pedestal 8 of guide rail 6; The right side of housing 4 is connected with piston in the oil cylinder 10 of surging that is fixed on pedestal 8 right sides by screw by connecting rod 11.At two of pedestal 8 also respectively by fixing the long handle tool-joint 7 that connects that is threaded, like this so that connection long handle instrument when putting into water, can steadily be placed this bolt locking device.

Shown in Fig. 4-5, construction bolt is a cylindrical structure with bolt collar 14 integral body, and its left end has a cylinder groove, and inwall has keyway 21; Right-hand member is driven a cylindrical deep trouth of ladder, at an interior spring 16 and the columniform push rod 17 of being placed with successively, spring 16 heads on cylindrical push rod 17, the top countersunk head 20 of push rod 17 is an outer-hexagonal structure, this outer-hexagonal countersunk head 20 is positioned at cylinder groove, and there is certain spacing between the two, two rubber round section joint rings 27 also are installed on the inwall of cylinder groove; The middle part of push rod 17 has a smooth keyway 22, a columniform key 19 that is fixed in the bolt collar 14 vertically passes this keyway 22, jackscrew 18 is connected with sleeve 14 by screw thread and key 19 is sealed in sleeve 14 inside, and this key 19 can slide in this keyway 22.

As shown in Figure 6, fastening bolt is a cylindrical structure with bolt collar 23 integral body, and left end has a cylinder groove, and inwall has keyway 25, and the bottom of keyway 25 offers a cylindrical groove, by the screw 26 that is threaded; The right-hand member top of bolt collar 23 is the countersunk head 24 of an outer-hexagonal, and this is fastening with being entirely rigid connection between bolt collar 23 and the bolt.Hold out against hexagon socket head cap screw with outer-hexagonal countersunk head 24, just good fastening bolt under the effect of surge oil cylinder 10 and long handle instrument.

The nuts of hexagonal in the countersunk head of outer-hexagonal inserts, and when withstanding construction bolt, bolt can be embedded in the cylinder groove, be placed in the installation process and come off, simultaneously owing to be to be provided with spring 16 original rigid connection has been made into the elasticity connection, can well place and fill in the situation appearance that destroys screw thread because bolt does not have fine alignment nut firmly in the bottom of push rod 17.Under the effect of the oil cylinder 10 that surges, give thrust forward of bolt collar, drive the transmission of coaxial T generating gear with long handle instrument rotation simultaneously and make bolt collar joint 5 drive sleeves to have forward thrust and rotating moment simultaneously, cooperate in spring 16 in the push rod 17 and the push rod 17 unique keyway 22 and key 19 structures to install bolt slowly again.After treating that bolt is simple and installing, also will carry out the fastening bolt falling in the equipment use that prevents, so this device also is provided with the bolt collar that a cover fastening bolt is used specially, as sleeve 23 to bolt.Only need more change behind the construction bolt construction bolt sleeve 14 or disposable connecting to load onto respectively on the bolt collar joint 5 install with bolt collar 14 and fasteningly all can with bolt collar 23.

Installation in this device is all opened a columniform groove that is complementary with bolt collar joint 5 with bolt collar 14 and fastening bolt with the left end of bolt collar 23, and offer a standard rectangular keyway 21 with bolt collar joint 5 sizes couplings in inwall one side of this groove, in the future can use ready standard key to make

sleeve

14,23 and 5 very convenient safe being connected and fixed of bolt collar joint, and adopt

screw

15 and 26 to hold out against respectively.Simultaneously can change sleeve at any time according to the difference of construction bolt size.

Claims

1. threaded fastening device under water, it is characterized in that this device comprises that long handle tool-joint (1), top have the bolt collar (23) that bolt collar (14) that the bolt collar joint (5) of keyway, coaxial T type gear (3), the oil cylinder that surges (10), guide rail (6), draw-in groove (12), connecting rod (11), construction bolt use and fastening bolt are used; The upper and lower plates of housing (4) is provided with axle (13), left plate is provided with bolt collar joint (5), the T generating gear (3) that axle (13) in the housing is provided with is connected with the gear Vertical Meshing that bolt collar joint (5) the inner is provided with, the upper end of axle (13) is stretched out the upper plate of housing (4) and is connected with long handle tool-joint (1), the lower plate of housing (4) is provided with draw-in groove (12), and draw-in groove (12) is located on the pair of guide rails (6) on the pedestal (8); The right plate of housing (4) is connected with the oil cylinder that surges (10) that is fixed on pedestal (8) right side by connecting rod (11); The outside of bolt collar joint (5) and bolt collar (14) and (23) by means of cylindrical keys and keyway in addition pin confine and be connected.

2. a kind of threaded fastening device under water according to claim 1, it is characterized in that, above-mentioned construction bolt is a cylindrical structure with bolt collar (14) integral body, have a cylinder groove at its left end, inwall has keyway (21), outer wall is provided with a pin (15), the right-hand member of bolt collar (14) is also driven a cylindrical deep trouth of ladder, be provided with spring (16) and push rod (17) within it successively, spring (16) heads on cylindrical push rod (17), the top countersunk head (20) of push rod (17) is an outer-hexagonal structure, and also is provided with two rubber round section joint rings (27) on the cylinder groove inwall herein.

3. according to claim 1 or 2 described a kind of threaded fastening devices under water, it is characterized in that, there is a smooth keyway (22) at the middle part of above-mentioned push rod (17), a columniform key (19) that is fixed in the bolt collar (14) vertically passes this keyway (22), and this key (19) can slide in this keyway (22).

4. a kind of threaded fastening device under water according to claim 1, it is characterized in that, above-mentioned fastening bolt is a cylindrical structure with bolt collar (23) integral body, have a cylinder groove at its left end, inwall has keyway (21), outer wall is provided with a pin (15), and the right-hand member top of bolt collar (23) is the countersunk head (24) of an outer-hexagonal.

5. a kind of threaded fastening device under water according to claim 1, it is characterized in that, axle (13) in the above-mentioned housing (4) is provided with two duplicate T generating gears of structure (3), left plate is provided with and connects a duplicate bolt collar joint of structure (5), and passing the fixedly inboard dividing plate (28) of housing (4), dividing plate (28) separates two T generating gears (3).