CN218136234U - Rudder blade hydraulic nut screwing device - Google Patents
Rudder blade hydraulic nut screwing device Download PDFInfo
- Publication number
- CN218136234U CN218136234U CN202222478925.XU CN202222478925U CN218136234U CN 218136234 U CN218136234 U CN 218136234U CN 202222478925 U CN202222478925 U CN 202222478925U CN 218136234 U CN218136234 U CN 218136234U
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- CN
- China
- Prior art keywords
- hydraulic nut
- rudder blade
- otic placode
- crown plate
- frock piece
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Abstract
The utility model relates to a rudder blade hydraulic nut screws up device, including hydraulic nut and combination frock piece, hydraulic nut's excircle is equipped with straight wrench face, combination frock piece includes crown plate and otic placode, and 4 otic placodes welding are in the outside of crown plate, the middle part and the crown plate welding of otic placode, the upper portion of otic placode and the laminating of hydraulic nut's straight wrench face, the lower part of otic placode is equipped with the earhole, hydraulic nut passes through bolted connection with the crown plate. The utility model discloses simple structure makes hydraulic nut form wholly with it through setting up combination frock piece, and combination frock piece is furnished with wire rope and pole spanner, wire rope handling hydraulic nut, and hydraulic nut is screwed up to the pole spanner, plays the box spanner effect again when combination frock piece plays the handling effect, and hydraulic nut screws up the convenience, and the installation effectiveness is high.
Description
Technical Field
The utility model relates to a shipbuilding technical field, concretely relates to rudder blade hydraulic nut screws up device for overcome the thin flat construction space who arouses of rudder blade and tense, the hydraulic nut who arouses under the relative little condition of rudder blade access door screws up, the on-the-spot construction of being convenient for of frock effectively screws up rudder blade hydraulic nut.
Background
In boats and ships, the connected mode between rudderstock and the rudder blade mainly has two kinds: flange joint and centrum connect, and centrum connects and can divide into again: a keyed vertebral body connection and a keyless vertebral body connection. The keyless cone connection utilizes the friction force between the rudder stock and the conical surface of the steel casting on the upper part of the rudder blade to transmit torque, thereby achieving the purpose of steering. In order to have sufficient friction between the surfaces of the two cones, the amount of penetration needs to be determined through press-fit calculations. The expected pressing-in amount is achieved by two methods, namely a mechanical pressing-in method (used on a small ship) and a hydraulic nut pulling-in method (adopted on a large ship), wherein the hydraulic nut pulling-in method (a rudder stock/pin into a rudder blade conical surface) is a universal, effective and quick method.
According to the distribution of a stern flow field, the length-thickness ratio of the cross section of the rudder blade has requirements, particularly for ships with the speed greater than 18 knots, the space for screwing the nut inside the rudder blade is limited, and two connected jointed boards on two sides of a rudder blade steel casting are required to be at least 300mm according to the classification society standard, so that a wrench hole machined in the upper outer circle of a hydraulic nut is closer to a rudder blade sealing plate, the wrench construction space is narrow, and the hydraulic nut is very difficult to screw.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects, and provides a rudder blade hydraulic nut screwing device which is simple in structure, on one hand, the combination tool piece is connected with a hydraulic nut bottom bolt, the combination tool piece is in a suspended ceiling type and is assembled into a whole with a hydraulic nut, a steel wire rope passes through an ear plate eye hole to effectively hoist the hydraulic nut to the position under a rudder stock/pin, and after the alignment of nut screw teeth and the rudder stock/pin is realized by adjusting the steel wire, the nut is preliminarily screwed in place; the rudder stock/pin is pulled to a preset pressed-in amount through a hydraulic nut; after the press fit is finished, firstly, the radial pressure is removed, the pressure is maintained for 15 to 20 minutes, then, the axial pressure is removed, a spanner is inserted through the ear plate hole to rotate the hydraulic nut, the hydraulic nut body is attached to the lower end face of the conical surface of the rudder blade steel casting, and the tightening force of effectively and quickly tightening the hydraulic nut by 1 ton needs to be achieved by means of the combined tool piece again.
The purpose of the utility model is realized like this:
the utility model provides a rudder blade hydraulic nut screws up device, includes hydraulic nut and combination frock spare, hydraulic nut's excircle is equipped with straight wrench face, combination frock spare includes crown plate and otic placode, and 4 otic placodes welding are in the outside of crown plate, the middle part and the crown plate welding of otic placode, the upper portion of otic placode and the straight wrench face laminating of hydraulic nut, the lower part of otic placode is equipped with the earhole, hydraulic nut passes through bolted connection with the crown plate.
The utility model provides a lug hole on two otic placodes of rudder blade hydraulic nut tightening device, centrosymmetric is on same straight line.
According to the rudder blade hydraulic nut screwing device, the lug hole is threaded with a steel wire rope to play a role in first-stage debugging and preliminarily screwing the hydraulic nut on a rudder stock/pin thread; the long round bar wrench with the symmetrical centers of the ear holes plays a role of a socket wrench in the second stage.
The utility model provides a rudder blade hydraulic nut screws up device, the crown plate corresponds the bolt and is equipped with waist shape hole, the lower plane of hydraulic nut corresponds the bolt and is equipped with the screw hole.
The utility model has the advantages that:
the utility model discloses simple structure makes hydraulic nut form wholly with it through setting up combination frock piece, and combination frock piece is furnished with wire rope and pole spanner, wire rope handling hydraulic nut, and hydraulic nut is screwed up to the pole spanner, plays the box spanner effect again when combination frock piece plays the handling effect, and hydraulic nut screws up conveniently, and the installation effectiveness is high.
Drawings
Fig. 1 is the structure schematic diagram (the combined tool assembly is matched with a steel wire rope) of the utility model.
Fig. 2 is a schematic structural diagram of the present invention (combination tool with round bar wrench).
Fig. 3 is a top view of the assembled tooling.
Fig. 4 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 3.
Fig. 5 is a bottom view of the hydraulic nut.
Wherein: a hydraulic nut 1; 1.1 of flat wrench surface; assembling a tooling component 2; a ring plate 2.1; a kidney-shaped hole 2.1.1; 2.2 of ear plate; 2.2.1 of ear hole; a tiller 3; a rudder blade 4; a wire rope 5; a round bar wrench 6.
Detailed Description
Referring to fig. 1-5, the utility model relates to a rudder blade hydraulic nut tightening device, including hydraulic nut 1 and combination frock piece 2, hydraulic nut 1 passes through the bolt fastening on combination frock piece 2, hydraulic nut 1's excircle is equipped with straight wrench face 1.1, combination frock piece 2 includes that crown plate 2.1 and lug plate 2.2,4 lug plate 2.2 weld in the outside of crown plate 2.1, the middle part and the crown plate 2.1 welding of lug plate 2.2, the upper portion of lug plate 2.2 and the straight wrench face 1.1 laminating of hydraulic nut 1, the lower part of lug plate 2.2 is equipped with lug hole 2.2.1, and the lug hole 2.2.1 on two lug plates 2.2 of central symmetry is on same straight line, lug hole 2.2.1 has two effects, is used for wearing to establish wire rope 5 on the one hand, is used for inserting round bar 6 on the other hand.
The hydraulic nut is characterized in that a hydraulic nut 1 is arranged on the ring plate 2.1, the hydraulic nut 1 is connected with the ring plate 2.1 through a bolt, a waist-shaped hole 2.1.1 is formed in the ring plate 2.1 corresponding to the bolt, and a threaded hole is formed in the lower plane of the hydraulic nut 1 corresponding to the bolt.
A rudder blade hydraulic nut screwing method comprises the following steps:
1. processing a flat wrench face 1.1 on the excircle of the hydraulic nut 1;
2. spot welding and shaping the ring plate 2.1 and the lug plate 2.2 by adhering to the hydraulic nut 1, taking out the hydraulic nut 1, and then welding the ring plate 2.1 and the lug plate 2.2 to form a combined tooling part 2;
3. assembling the combined tool part 2 and the hydraulic nut 1 into a whole through a bolt;
4. after the rudder stock 3 penetrates into the rudder blade 4, the steel wire rope 5 penetrates through an ear hole 2.2.1 below the combined tooling part 2, the combined tooling part 2 and the hydraulic nut 1 are integrally hoisted, after the hoisting is in place, the hydraulic nut 1 is aligned to a thread at the bottom of the rudder stock 3, and the hydraulic nut 1 is gently rotated onto the rudder stock 3 through a round bar wrench 6;
5. temporarily detaching the combined tooling part 2, and starting the press-fitting work of the rudder stock 3 and the rudder blade 4;
6. after the press fit is finished, the combined tool part 2 and the hydraulic nut 1 are assembled into a whole again, and the hydraulic nut 1 is screwed up through the round bar wrench 6;
7. and after the hydraulic nut 1 is screwed in place, the combined tooling part 2 is removed.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (4)
1. The utility model provides a rudder blade hydraulic nut tightening device which characterized in that: including hydraulic nut (1) and combination frock piece (2), the excircle of hydraulic nut (1) is equipped with straight wrench face (1.1), combination frock piece (2) are including crown plate (2.1) and otic placode (2.2), and 4 otic placodes (2.2) welding are in the outside of crown plate (2.1), the middle part and crown plate (2.1) welding of otic placode (2.2), the upper portion of otic placode (2.2) and the straight wrench face (1.1) laminating of hydraulic nut (1), the lower part of otic placode (2.2) is equipped with earhole (2.2.1), hydraulic nut (1) passes through bolted connection with crown plate (2.1).
2. The rudder blade hydraulic nut tightening device according to claim 1, wherein: the ear holes (2.2.1) on the two ear plates (2.2) with central symmetry are on the same straight line.
3. The rudder blade hydraulic nut tightening device according to claim 1, wherein: the ear hole (2.2.1) is connected with a steel wire rope (5) or a round bar wrench (6).
4. The rudder blade hydraulic nut tightening device according to claim 1, wherein: the ring plate (2.1) is provided with a waist-shaped hole (2.1.1) corresponding to the bolt, and the lower plane of the hydraulic nut (1) is provided with a threaded hole corresponding to the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222478925.XU CN218136234U (en) | 2022-09-20 | 2022-09-20 | Rudder blade hydraulic nut screwing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222478925.XU CN218136234U (en) | 2022-09-20 | 2022-09-20 | Rudder blade hydraulic nut screwing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218136234U true CN218136234U (en) | 2022-12-27 |
Family
ID=84562881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222478925.XU Active CN218136234U (en) | 2022-09-20 | 2022-09-20 | Rudder blade hydraulic nut screwing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218136234U (en) |
-
2022
- 2022-09-20 CN CN202222478925.XU patent/CN218136234U/en active Active
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| GR01 | Patent grant |