CN201777770U - Hoisting tool for freezing and mounting process of ship rudder system bushing - Google Patents
Hoisting tool for freezing and mounting process of ship rudder system bushing Download PDFInfo
- Publication number
- CN201777770U CN201777770U CN2010202838294U CN201020283829U CN201777770U CN 201777770 U CN201777770 U CN 201777770U CN 2010202838294 U CN2010202838294 U CN 2010202838294U CN 201020283829 U CN201020283829 U CN 201020283829U CN 201777770 U CN201777770 U CN 201777770U
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- hold
- bracing frame
- lifting device
- down arm
- lining
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Abstract
The utility model relates to a hoisting tool for the freezing and mounting process of a ship rudder system bushing, comprising a support frame, a screw, support arms and a support bar, wherein the upper part of the screw penetrates through the middle of the support frame; a flying ring is screwed at the extended part of the screw; the support bar is fixed at the bottom of the screw; the middle of the support bar is bent to form an obtuse angle; an adjusting bolt and a gasket are screwed on external threads at two ends of the support bar; the upper ends of the two supports arms are respectively fixed on the end parts on two sides of the support frame; a strip hole is arranged in the middle of each support arm; two end parts of the support bar respectively pass through the strip holes on the two support arms; the gasket is supported against the lower part of each support arm by the adjusting bolt and can move at the strip holes; and a part for bending and an extending end for supporting the bottom of the bushing are arranged at the bottoms of the support arms. The hoisting tool is safe and firm when hoisting and pulling the rudder system bushing, avoids the slipping phenomenon, is simple and convenient for operation and has high construction efficiency on the premise of safety and stability.
Description
Technical field
The utility model relates to ship building, specially refers to a kind of lifting device that the lining of shipping rudder system is used in freezing installation process when ship building.
Background technology
At 17.7 ten thousand tons of rudders for ship is in the freezing installation process of lining, because rudder horn bottom back-up ring width is bigger, causes original frock can't directly cross shelves.
Below be the installation procedure explanation and the installation process of frock of the prior art: this frock includes screw mandrel a1, be screwed in the suspension ring a2 of screw mandrel a1 end, screw mandrel a1 is provided with two parallel top board a3 and lower platen a4, and lining B just is clamped between top board a3 and the lower platen a4.In use, set up pin hand platform in advance in the installation region, in rudder horn A, place a wooden unit C earlier, the lining of freezing mistake is hung to rudder horn A, remove suspension ring a2, screw mandrel a1, top board a3, lower platen a4 according to the order of sequence, lining B integral body is risen by manpower with iron staff D, wooden unit C is removed in the back, slowly lining is in place by manpower, as shown in Figure 1.
The frock of above-mentioned prior art can't fixed hub, causes lining to be easy to generate slip phenomenon in hoisting process, and is easy to generate frostbite in the complex procedures of dismounting frock; Also having also needs to set up scaffold at the rudder horn place in the lining installation process, has influenced hoisting process greatly and has existed sizable potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, is provided at the lifting device of using in the freezing installation process of shipping rudder system lining.Lifting device of the present utility model is wanted safety when drawing rudder to be lining firmly hanging, and slip phenomenon can not occur, and is simple to operation, operating efficiency height under the prerequisite of safety and stability.
In order to reach the foregoing invention purpose, the technical scheme that the utility model provides is as follows:
A kind of lifting device of in the freezing installation process of shipping rudder system lining, using, it is characterized in that, this lifting device includes bracing frame, screw mandrel, hold-down arm and strut bar, the middle part of bracing frame is passed on the top of described screw mandrel, the position that screw mandrel stretches out in bracing frame top is screwed with suspension ring, and the bottom of screw mandrel is fixed with described strut bar; The middle part of described strut bar bends in obtuse angle, and its two ends respectively are provided with outside thread, are screwed with adjustable bolt and pad on the outside thread; Described hold-down arm has two, the upper end of each hold-down arm is individually fixed in the both side ends of bracing frame, be provided with a strip hole at the middle part of hold-down arm, two ends of described strut bar are passed the strip hole on described two hold-down arms respectively, pad is butted on the hold-down arm bottom and can moves in the strip hole position by adjustable bolt, described hold-down arm bottom is provided with the elongated end that is used for bending part and is used to hold up sleeve.
In the utility model, be fixed with the lateral support bar respectively in the both sides of described bracing frame, two lateral support bars are all perpendicular to plane, two hold-down arm places, and the purpose that the lateral support bar is set is to keep lining stable, prevents that it from occurring tilting.
In the further design of the utility model to the side direction strut bar, in order to realize the telescopic adjustment of lateral support bar, described lateral support bar is adjusted seat board by two and is fixed on the bracing frame, described adjustment seat board is provided with negative thread, the end of described sideshake strut bar is provided with outside thread, also is provided with a nut on this outside thread.
In the utility model, in order to increase connection stability between screw mandrel and the bracing frame, medium position is provided with through hole on described bracing frame, and a guide pipe is fixedly welded on the lead to the hole site of bracing frame, and described screw mandrel passes described guide pipe.
In the utility model, described bracing frame is one section channel-section steel, and the two ends of bracing frame respectively are provided with one group of axis hole, is connected by bearing pin between described hold-down arm and bracing frame.
In the utility model, in order to make hold-down arm reduce the lining damage when contacting with lining, described hold-down arm bending part is provided with the fender that is used to prop up the lining inwall.
In the further design of fender, described fender is an arc, and this arc is perpendicular to the external part of described hold-down arm.
In the utility model, described strut bar and screw mandrel fixed position are provided with brace panel, and described brace panel is two, is symmetrically fixed on respectively between strut bar and the screw mandrel.
In the utility model, on the screw mandrel of described suspension ring bottom, also be screwed with an adjustment nut.
Based on technique scheme, lifting device of the present utility model has following technological merit than background technology:
Lifting device of the present utility model is simple in structure, combines during use, uses with crane, with lining hang easily be pulled in the liquid nitrogen freezing, draw the installation site of lining to the rudder system hanging then, simple in structure, easy to use, dismounting is easily gone, and has been improved safety performance greatly.Lifting device of the present utility model has been obtained goodish effect in the test of ship building, overcome above all potential safety hazards and a difficult problem is installed.
Description of drawings
Fig. 1 is that the prior art centered rudder is the procedure chart of the freezing installation of lining.
Fig. 2 be the lifting device in freezing installation process, used of the lining of the utility model shipping rudder system when ship building face STRUCTURE DECOMPOSITION figure.
Fig. 3 is the side-looking STRUCTURE DECOMPOSITION figure of the lifting device used in freezing installation process of the lining of the utility model shipping rudder system when ship building.
Fig. 4 is the plan structure exploded drawings of the lifting device used in freezing installation process of the lining of the utility model shipping rudder system when ship building.
Fig. 5 is the running condition figure of lifting device of the present utility model in the freezing installation of lining of boats and ships rudder.
The specific embodiment
Below our lining of shipping rudder system is used in freezing installation process when coming ship building of the present utility model with specific embodiment in conjunction with the accompanying drawings lifting device do further and elaborate; in the hope of more cheer and bright understanding structure of the present utility model and use, but can not limit protection domain of the present utility model with this.
Please see Figure 1 and Fig. 2, Fig. 2 be the lifting device in freezing installation process, used of the lining of the utility model shipping rudder system when ship building face STRUCTURE DECOMPOSITION figure, Fig. 3 is the side-looking STRUCTURE DECOMPOSITION figure of the lifting device used in freezing installation process of the lining of the utility model shipping rudder system when ship building.Fig. 4 is the plan structure exploded drawings of the lifting device used in freezing installation process of the lining of the utility model shipping rudder system when ship building.As seen from the figure, the utility model mainly is a kind of lifting device of using in the freezing installation process of shipping rudder system lining, and the structure of this lifting device mainly includes bracing frame 001, screw mandrel 003, hold-down arm 002 and strut bar 004.
The middle part of bracing frame 004 is passed on the top of screw mandrel 003, and the position that screw mandrel 003 stretches out in bracing frame 004 top is screwed with suspension ring 005, and the bottom of screw mandrel 003 is fixed with described strut bar 004.The middle part of strut bar 004 bends in obtuse angle, and its two ends respectively are provided with outside thread, are screwed with two adjustable bolts 007,008 and pad 006 on the outside thread, and above-mentioned pad 006 is positioned at the midway location of two adjustable bolts 007 and 008.
Above-mentioned hold-down arm 002 is provided with two altogether, and the structure of two hold-down arms 002 is identical.The upper end of each hold-down arm 002 is individually fixed in the both side ends of bracing frame 001.In actual applications, bracing frame 001 selects for use one section channel-section steel to make, and respectively is provided with one group of axis hole at the two ends of bracing frame 001, and two hold-down arms 002 pass the two ends that pin-and-hole is fixed on bracing frame 001 by bearing pin 013 respectively.Above-mentioned bearing pin 013 is fixed on the bracing frame 001 by nut 015 and pad 016.Because between hold-down arm 002 and the bracing frame 001 is by the bearing pin bonded assembly, so the free end of hold-down arm 002 can rotate around the coupling end of itself and bracing frame 002.
Be provided with a strip hole at the middle part of hold-down arm 002, two ends of described strut bar 004 are passed the strip hole on described two hold-down arms 002 respectively, by being positioned at in-to-in adjustment nut 007 and being positioned at exterior adjustment nut 008, make pad 006 be butted on hold-down arm 002 bottom and can in strip hole, carry out the position and move pad 006 clamping.The effect of strut bar 004 is fixed pedestal arm 002 on the one hand like this, makes it be unlikely to move too big distance, its opening angle of scalable on the other hand.
Be equipped with in the bottom of each hold-down arm 002 and be used for bending part and elongated end,,, bending part must be arranged if the bottom is positioned at level because hold-down arm 002 is and is in tilted layout.Owing to will hold up the bottom of lining, need a contact surface, so designed an elongated end at the bending part of hold-down arm 002.
In the utility model, in order to increase this lifting device stability in use, both sides at described bracing frame 001 are fixed with lateral support bar 012 respectively, two lateral support bars 012 are all perpendicular to the plane at two hold-down arm 002 places, the purpose that lateral support bar 012 is set is to keep lining stable, prevents that it from occurring tilting.
Above-mentioned lateral support bar 012 is adjusted seat board 014 by two and is fixed on the bracing frame 001, is provided with negative thread on adjustment seat board 014, is provided with outside thread in the end of described lateral support bar 012, also is provided with a nut 015 on this outside thread.The effect of nut 015 is to regulate lateral support bar 012 in the distance of adjusting on the seat board 014 that is screwed into, and then control side is to the extension elongation of strut bar 012.In freezing process, need to adjust two lateral support bars 012 apart from lining inner bag 8～10mm, to prevent lining after freezing contraction, two side direction strut bars withstand the lining inner bag and cause damage, and also may cause it to dismantle.
In the utility model, in order to increase connection stability between screw mandrel 003 and the bracing frame 001, on described bracing frame 001, its bottom surface medium position is provided with through hole, and a guide pipe 009 is fixedly welded on the lead to the hole site of bracing frame 001.Described guide pipe 009 is passed in the upper end of above-mentioned screw mandrel 003.
In the utility model, in order to make hold-down arm 002 reduce the damage of lining inner bag when contacting, be provided with the fender 017 that is used to prop up the lining inwall at the bending part of described hold-down arm 002 with lining.In the further design of fender 017, described fender 017 is an arc, and its diameter is equal to the internal diameter of lining, and this arc 017 is perpendicular to the external part of described hold-down arm 002.
In the utility model, strut bar 004 is in mid point position bending, and bending part also welds fixingly with above-mentioned screw mandrel 003, requires this moment screw mandrel 003 and strut bar 004 to be positioned at same plane.In order to increase the stability that the two is connected and fixed, be provided with brace panel 010 at the fixed position of strut bar 004 and screw mandrel 003, above-mentioned brace panel 010 is two, is symmetrically fixed on the angle position of strut bar 004 and screw mandrel 003 respectively.
In the utility model, on the screw mandrel 003 of described suspension ring 005 bottom, also be screwed with an adjustment nut 011.The effect of this adjustment nut 011 is to adjust the be screwed into distance of suspension ring 005 at screw mandrel 003, and cooperates its degree of blocking of increase after adjustment is finished.
After the lifting device that adopts above-mentioned new version, adopt following method that the lining on the shipping rudder system is carried out freezing installation substantially:
1, be ready to two high-altitude hydraulic pressure cars in advance, these two one in high-altitude hydraulic pressure cars are positioned at rudder horn top, and another is positioned at the rudder horn bottom;
2, lifting device is installed on lining, is made the bending part of hold-down arm end place the bottom of lining, make its elongated end extend sleeve and hold lining from inside to outside, and as the force application part of lining;
3, utilize crane to hang to draw suspension ring on the lifting device, upwards spur screw mandrel, the strut bar end upwards applies strength simultaneously, hold-down arm is caused one to the thrust of both sides and the pulling force that makes progress, make the elongated end on the hold-down arm further combine with lining, plate 017 to be protected (fender is to prevent that hold-down arm from directly supportting on the lining inner bag, and the lining inner bag is damaged) support also drives lining simultaneously to move up at the lining inner bag; After lining is liftoff, adjust the spacing 8～10mm of lateral support bar and lining simultaneously;
4, above-mentioned lining hung to be pulled to freeze 15～20 minutes in the liquid nitrogen, make its external diameter diminish, then the lining B after freezing is winched to rudder horn A top, cooperate crane by the staff who is positioned on the hydraulic pressure car of high-altitude, rudder horn A top, with lining B guiding and put into the rudder horn hole, and wedge E is placed on the back-up ring of rudder horn bottom by the staff who is positioned on the hydraulic pressure car of high-altitude, rudder horn A bottom, treat crane lining is placed on the wedge slowly, with adjustment nut 011 pine to suspension ring 005 place, upwards promote supported on both sides bar 012 by the staff on the hydraulic pressure car of top, screw mandrel and strut bar fall, after two hold-down arms are in free state and reclaim to the inside, by last, the all removable compound type lining of staff suspender on the hydraulic pressure car of high-altitude, bottom.
5, by the staff on the hydraulic pressure car of bottom wedge E is extracted out, lining B falls on the back-up ring of rudder horn B bottom, and the freezing installation of lining B finishes.
Claims (9)
1. lifting device of in the freezing installation process of shipping rudder system lining, using, it is characterized in that, this lifting device includes bracing frame, screw mandrel, hold-down arm and strut bar, the middle part of bracing frame is passed on the top of described screw mandrel, the position that screw mandrel stretches out in bracing frame top is screwed with suspension ring, and the bottom of screw mandrel is fixed with described strut bar; The middle part of described strut bar bends in obtuse angle, and its two ends respectively are provided with outside thread, are screwed with adjustable bolt and pad on the outside thread; Described hold-down arm has two, the upper end of each hold-down arm is individually fixed in the both side ends of bracing frame, be provided with a strip hole at the middle part of hold-down arm, two ends of described strut bar are passed the strip hole on described two hold-down arms respectively, pad is butted on the hold-down arm bottom and can moves in the strip hole position by adjustable bolt, described hold-down arm bottom is provided with the elongated end that is used for bending part and is used to hold up sleeve.
2. a kind of lifting device of in the freezing installation process of shipping rudder system lining, using according to claim 1, it is characterized in that, both sides at described bracing frame are fixed with the lateral support bar respectively, and two lateral support bars are all perpendicular to plane, two hold-down arm places.
3. a kind of lifting device of in the freezing installation process of shipping rudder system lining, using according to claim 2, it is characterized in that, described lateral support bar is adjusted seat board by two and is fixed on the bracing frame, described adjustment seat board is provided with negative thread, the end of described sideshake strut bar is provided with outside thread, also is provided with a nut on this outside thread.
4. a kind of lifting device of in the freezing installation process of shipping rudder system lining, using according to claim 1, it is characterized in that, medium position is provided with through hole on described bracing frame, and a guide pipe is fixedly welded on the lead to the hole site of bracing frame, and described screw mandrel passes described guide pipe.
5. a kind of lifting device of in the freezing installation process of shipping rudder system lining, using according to claim 1, it is characterized in that, described bracing frame is one section channel-section steel, and the two ends of bracing frame respectively are provided with one group of axis hole, is connected by bearing pin between described hold-down arm and bracing frame.
6. a kind of lifting device of using in the freezing installation process of shipping rudder system lining according to claim 1 is characterized in that described hold-down arm bending part is provided with the fender that is used to prop up the lining inwall.
7. a kind of lifting device of using in the freezing installation process of shipping rudder system lining according to claim 6 is characterized in that described fender is an arc, and this arc is perpendicular to the external part of described hold-down arm.
8. a kind of lifting device of in the freezing installation process of shipping rudder system lining, using according to claim 1, it is characterized in that, described strut bar and screw mandrel fixed position are provided with brace panel, and described brace panel is two, is symmetrically fixed on respectively between strut bar and the screw mandrel.
9. a kind of lifting device of using in the freezing installation process of shipping rudder system lining according to claim 1 is characterized in that, also is screwed with an adjustment nut on the screw mandrel of described suspension ring bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202838294U CN201777770U (en) | 2010-08-06 | 2010-08-06 | Hoisting tool for freezing and mounting process of ship rudder system bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202838294U CN201777770U (en) | 2010-08-06 | 2010-08-06 | Hoisting tool for freezing and mounting process of ship rudder system bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201777770U true CN201777770U (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202838294U Expired - Lifetime CN201777770U (en) | 2010-08-06 | 2010-08-06 | Hoisting tool for freezing and mounting process of ship rudder system bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201777770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292621A (en) * | 2018-10-30 | 2019-02-01 | 莱芜钢铁集团新兴液气有限公司 | Special hanger for production and assembly formula molten steel flow straightener liner |
-
2010
- 2010-08-06 CN CN2010202838294U patent/CN201777770U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109292621A (en) * | 2018-10-30 | 2019-02-01 | 莱芜钢铁集团新兴液气有限公司 | Special hanger for production and assembly formula molten steel flow straightener liner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110330 |
|
| CX01 | Expiry of patent term |