CN114014149A - Lifting device for rudder system polymer bushing - Google Patents
Lifting device for rudder system polymer bushing Download PDFInfo
- Publication number
- CN114014149A CN114014149A CN202111297550.0A CN202111297550A CN114014149A CN 114014149 A CN114014149 A CN 114014149A CN 202111297550 A CN202111297550 A CN 202111297550A CN 114014149 A CN114014149 A CN 114014149A
- Authority
- CN
- China
- Prior art keywords
- center pillar
- lifting
- arc
- lifting device
- pin joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
- B66C1/30—Duplicate, e.g. pivoted, members engaging the loads from two sides and also arranged to grip the sides of the loads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The invention discloses a lifting device for a rudder system polymer bushing. This hoisting device of rudder system polymer bush includes the center pillar, the top of center pillar is provided with lifts by crane the screw, the periphery of center pillar is provided with three promotion stand, three promotion stand is circumference evenly distributed around the axis of center pillar, the bottom that promotes the stand is provided with the first arc of bearing bush, be provided with the head rod between promotion stand and the center pillar, the one end and the promotion stand pin joint of head rod, the other end and center pillar pin joint, the well upper portion threaded connection of center pillar has the holding ring, the top of holding ring is provided with the adjustable ring, the adjustable ring cup joints in the outside of center pillar, be provided with the pull rod between adjustable ring and the head rod, the one end and the adjustable ring pin joint of pull rod, the other end and head rod pin joint. The invention solves the problems of complex operation, poor stability and interference risk with a bushing installation step in the prior art.
Description
Technical Field
The invention relates to the field of shipbuilding, in particular to a lifting device for a rudder system polymer bushing.
Background
In order to ensure that the rudder blade of the ship can effectively rotate in the process of sailing, a bushing made of a high polymer material is arranged at the rudder stock and the rudder pintle during design. Generally, the polymer bushing is installed in a stainless steel barrel filled with liquid nitrogen or dry ice by a freezing method for ultralow temperature shrinkage, and is quickly installed on a rudder horn for rotation of a rudder blade. In the construction process, because the outer wall of the polymer bushing cannot be directly touched by hands under the influence of low temperature (dry ice-57 ℃ and liquid nitrogen-210 ℃), the bushing needs to be taken out of the barrel by means of a tool and then is installed at a corresponding position.
The hoisting tool and hoisting method for the ship rudder system bushing disclosed in the prior publication No. CN102001576B have the following problems: 1. the expansion plates need to be adjusted one by one, which is very troublesome; 2. the liner bushing is pressed by the liner plate from the upper side and the lower side, the liner bushing shrinks in the radial direction and also shrinks in the axial direction when being frozen, and a gap is formed between the liner bushing and the liner plate after the liner bushing shrinks, so that the clamping is unstable, the installation is influenced, and certain potential safety hazards exist; 3. the upper shim plate has a risk of interfering with the bushing mounting step, resulting in an inability to mount the bushing.
Disclosure of Invention
The invention aims to provide a lifting device of a rudder system polymer bushing, which is convenient to operate, high in stability and capable of avoiding interference with a bushing mounting step, aiming at the defects in the prior art.
In order to achieve the purpose, the technical scheme adopted by the lifting device of the rudder system polymer bushing is as follows:
the utility model provides a rudder is hoisting device of polymer bush, including the center post, the top of center post is provided with lifts by crane the screw, the periphery of center post is provided with three promotion stand, three promotion stand is circumference evenly distributed around the axis of center post, the bottom of promoting the stand is provided with the first arc of bearing bush, be provided with the head rod between promotion stand and the center post, the one end and the promotion stand pin joint of head rod, the other end and center post pin joint, the well upper portion threaded connection of center post has the holding ring, the top of holding ring is provided with the adjustable ring, the adjustable ring cup joints in the outside of center post, be provided with the pull rod between adjustable ring and the head rod, the one end and the adjustable ring pin joint of pull rod, the other end and head rod pin joint. According to the size of the inner diameter of the bushing, the height of the adjusting ring on the central stand column is adjusted, the pull rod drives the first connecting rod, the first connecting rod drives the lifting stand column, the distance between the lifting stand column and the central stand column is made to adapt to the inner diameter of the bushing, and the position of the adjusting ring on the central stand column is locked by the positioning ring.
Preferably, a plurality of threaded holes are formed in the first arc-shaped plate and used for fixedly connecting a second arc-shaped plate, and the width of the second arc-shaped plate is larger than that of the first arc-shaped plate. And a second arc-shaped plate with larger width is arranged on the first arc-shaped plate so as to adapt to the lining with larger wall thickness.
Preferably, the top of the adjusting ring is provided with a nut, and the nut is in threaded connection with the central upright post. And the adjusting ring is locked from the upper side by the cap, so that the adjusting ring cannot move upwards in the lifting process of the bushing, and the stability and the safety of the lifting device are improved.
Preferably, a second connecting rod parallel to the first connecting rod is arranged between the lifting upright column and the central upright column, the second connecting rod is positioned below the first connecting rod, one end of the second connecting rod is pivoted to the middle lower part of the lifting upright column, and the other end of the second connecting rod is pivoted to the bottom of the central upright column. The second connecting rod improves the supporting strength of the lifting upright post.
Preferably, the top of the lifting column is provided with a guide plug. The guide plug facilitates the sleeve of the bushing to be sleeved outside the lifting upright post.
Preferably, the lifting screw hole is internally connected with a lifting ring. The lifting ring is convenient for lifting the lifting device.
Compared with the prior art, the invention has the following advantages:
1. the size of the circle that three promotion stands formed is directly adjusted through the adjustable ring, makes it can adapt to the internal diameter of bush, and it is very convenient to operate.
2. Before and after the bushing is frozen, the bushing is sleeved outside the lifting upright post and supported by the first arc-shaped plate or the second arc-shaped plate, so that the bushing is stable and reliable.
3. The upper side of the bushing is free of shielding objects and cannot interfere with the mounting boss.
Drawings
Fig. 1 is a schematic view showing a structure of a rudder system polymer bushing in an extreme extension state.
Fig. 2 is an enlarged view of fig. 1 at a.
Fig. 3 is a schematic view showing a structure of a rudder system polymer bushing in an extreme contracted state.
Fig. 4 is a schematic view of a first arcuate plate.
FIG. 5 is a schematic view of a bushing installation scenario.
Fig. 6 is an enlarged view of fig. 5 at B.
Wherein, 1 center pillar, 2 lift by crane the screw, 3 rings, 4 promote the stand, 5 guide plugs, 6 bushes, 7 first arc, 8 screw holes, 9 second arc, 10 head rod, 11 second connecting rods, 12 holding rings, 13 adjustable ring, 14 pull rods, 15 and the cap, 16 through-holes, 17 installation steps.
Detailed Description
The present invention is further illustrated by the following description in conjunction with the accompanying drawings, which are to be construed as merely illustrative and not limitative of the remainder of the disclosure, and on reading the disclosure, various equivalent modifications thereof will become apparent to those skilled in the art and fall within the limits of the appended claims.
As shown in figures 1-6, a lifting device for a rudder system polymer bushing comprises a central upright post 1, wherein a lifting screw hole 2 is formed in the top of the central upright post, a lifting ring 3 is connected in the lifting screw hole and is convenient for lifting the lifting device, three lifting upright posts 4 are arranged on the periphery of the central upright post and are uniformly distributed around the axis of the central upright post in a circumferential manner, a guide plug 5 is arranged at the top of each lifting upright post and is convenient for sleeving a bushing 6 on the outer side of the lifting upright post, the bottom of each lifting upright post is fixedly connected with a first arc-shaped plate 7 for supporting the bushing, the first arc-shaped plate is provided with two threaded holes 8 for fixedly connecting a second arc-shaped plate 9, the width of the second arc-shaped plate is larger than that of the first arc-shaped plate, the second arc-shaped plate can be suitable for the bushing with larger wall thickness, a first connecting rod 10 and a second connecting rod 11 are arranged between the lifting upright post and the central upright post from top to bottom, and the first connecting rod and the second connecting rod are parallel, one end pin joint of head rod is in the well upper portion of promotion stand, the other end pin joint is in the middle part of center post, the one end pin joint of second connecting rod is in the well lower part of promotion stand, the other end pin joint is in the bottom of center post, the well upper portion threaded connection holding ring 12 of center post, adjustable ring 13 is arranged at the top of holding ring, the adjustable ring cup joints the outside at center post, arrange pull rod 14 between adjustable ring and the head rod, the one end and the adjustable ring pin joint of pull rod, the other end pin joint is in the middle part of head rod, the top of adjustable ring is arranged and the cap 15, and cap and center post threaded connection, and the cap is from upside locking adjustable ring, ensure that the adjustable ring can not go up at the promotion in-process of bush, the stability and the security of hoisting device have been improved.
The specific working process and principle of the lifting device of the rudder system polymer bushing are as follows: according to the size of the lining, the height of the adjusting ring on the central upright is adjusted, the pull rod drives the first connecting rod, the first connecting rod drives the lifting upright, so that the distance between the lifting upright and the central upright adapts to the inner diameter of the lining, the position of the adjusting ring on the central upright is locked from the lower side by using the positioning ring, then the adjusting ring is locked from the upper side by using the cap, the adjusting ring is ensured not to move upwards in the lifting process of the lining, the stability and the safety of the lifting device are improved, the lining is sleeved outside the lifting upright along the guide plug, the lining is supported by the first arc-shaped plate, when the wall thickness of the lining is larger, the second arc-shaped plate with larger width can be installed on the first arc-shaped plate, the lining is supported by using the second arc-shaped plate, after the lining and the lifting device are frozen by dry ice or liquid nitrogen, the lining generally has smaller shrinkage of 2-4mm, and does not influence the stability of the lining on the lifting device, the lifting device is lifted to the mounting position of the bush by using the lifting appliance, the lifting upright column directly penetrates through the through hole 16, interference with the mounting step 17 is avoided, and smooth mounting of the bush is guaranteed.
Claims (6)
1. A lifting device of a rudder system polymer bushing is characterized in that: including the center pillar, the top of center pillar is provided with lifts by crane the screw, the periphery of center pillar is provided with three promotion stand, three promotion stand is circumference evenly distributed around the axis of center pillar, the bottom that promotes the stand is provided with the first arc of bearing bush, be provided with the head rod between promotion stand and the center pillar, the one end and the promotion stand pin joint of head rod, the other end and center pillar pin joint, the well upper portion threaded connection of center pillar has the holding ring, the top of holding ring is provided with the adjustable ring, the adjustable ring cup joints in the outside of center pillar, be provided with the pull rod between adjustable ring and the head rod, the one end and the adjustable ring pin joint of pull rod, the other end and head rod pin joint.
2. The rudder system polymer bushing lifting device according to claim 1, wherein: a plurality of threaded holes are formed in the first arc-shaped plate and used for fixedly connecting a second arc-shaped plate, and the width of the second arc-shaped plate is larger than that of the first arc-shaped plate.
3. The rudder system polymer bushing lifting device according to claim 1, wherein: and a cap is arranged at the top of the adjusting ring and is in threaded connection with the central upright post.
4. The rudder system polymer bushing lifting device according to claim 1, wherein: a second connecting rod parallel to the first connecting rod is arranged between the lifting upright post and the central upright post, the second connecting rod is positioned below the first connecting rod, one end of the second connecting rod is pivoted to the middle lower part of the lifting upright post, and the other end of the second connecting rod is pivoted to the bottom of the central upright post.
5. The rudder system polymer bushing lifting device according to claim 4, wherein: and a guide plug is arranged at the top of the lifting upright post.
6. The rudder system polymer bushing lifting device according to claim 1, wherein: and a lifting ring is connected in the lifting screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297550.0A CN114014149A (en) | 2021-11-04 | 2021-11-04 | Lifting device for rudder system polymer bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111297550.0A CN114014149A (en) | 2021-11-04 | 2021-11-04 | Lifting device for rudder system polymer bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114014149A true CN114014149A (en) | 2022-02-08 |
Family
ID=80060769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111297550.0A Pending CN114014149A (en) | 2021-11-04 | 2021-11-04 | Lifting device for rudder system polymer bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114014149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196501A (en) * | 2022-09-14 | 2022-10-18 | 徐州东屹新材料有限公司 | Bridge beam assembling and hoisting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001576A (en) * | 2010-11-08 | 2011-04-06 | 沪东中华造船(集团)有限公司 | Hoisting tool and hoisting method for ship rudder system bush |
| CN102701071A (en) * | 2012-06-21 | 2012-10-03 | 江苏建华管桩有限公司 | Internal expanding type lifting hoist |
| CN204434083U (en) * | 2014-12-25 | 2015-07-01 | 大连船舶重工集团有限公司 | Boats and ships rudder bush is fixed, handling auxiliary device |
| CN105314522A (en) * | 2015-12-01 | 2016-02-10 | 沈阳华创风能有限公司 | Lifting apparatus for rear main bearing of wind-driven generator unit |
| CN111792510A (en) * | 2020-07-21 | 2020-10-20 | 银川威力传动技术股份有限公司 | Hoisting device for installing speed reducer part of wind driven generator |
-
2021
- 2021-11-04 CN CN202111297550.0A patent/CN114014149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102001576A (en) * | 2010-11-08 | 2011-04-06 | 沪东中华造船(集团)有限公司 | Hoisting tool and hoisting method for ship rudder system bush |
| CN102701071A (en) * | 2012-06-21 | 2012-10-03 | 江苏建华管桩有限公司 | Internal expanding type lifting hoist |
| CN204434083U (en) * | 2014-12-25 | 2015-07-01 | 大连船舶重工集团有限公司 | Boats and ships rudder bush is fixed, handling auxiliary device |
| CN105314522A (en) * | 2015-12-01 | 2016-02-10 | 沈阳华创风能有限公司 | Lifting apparatus for rear main bearing of wind-driven generator unit |
| CN111792510A (en) * | 2020-07-21 | 2020-10-20 | 银川威力传动技术股份有限公司 | Hoisting device for installing speed reducer part of wind driven generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196501A (en) * | 2022-09-14 | 2022-10-18 | 徐州东屹新材料有限公司 | Bridge beam assembling and hoisting equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110280999B (en) | Tool for horizontally hoisting marine hydraulic nuts | |
| CN114014149A (en) | Lifting device for rudder system polymer bushing | |
| CN206974352U (en) | A kind of junction box levelling device | |
| CN111266861A (en) | Assembly fixture of low-pressure turbine of engine | |
| CN111376016A (en) | Positioning and guiding tool for low-pressure turbine of engine | |
| CN111496466A (en) | Rudder bearing sleeve mounting tool | |
| CN106925628A (en) | A kind of shell misalignment error forces means for correcting | |
| CN206223417U (en) | A kind of Detecting data device for detecting swivel joint | |
| CN203019014U (en) | Adjusting ejector rod for assembling and disassembling large spring spindle | |
| CN115465768B (en) | Large-scale bearing hoisting device | |
| CN203792256U (en) | Tool for disassembling diesel engine cylinder jacket | |
| CN210435676U (en) | Tool for horizontally hoisting marine hydraulic nut | |
| CN206731847U (en) | A kind of shell misalignment error forces means for correcting | |
| CN206253678U (en) | Process the automatic boring machine of connecting rod | |
| CN115365756A (en) | Variable-diameter cylinder horizontal rotation clamping device and variable-diameter cylinder machining method applying same | |
| CN212265698U (en) | Guide vane shaft middle shaft sleeve dismantling tool | |
| CN106217074A (en) | A kind of hydraulic jet propulsion system impeller milling tool | |
| CN218081467U (en) | Cylinder rounding device | |
| CN210413290U (en) | Rotary support frame of seam welder | |
| CN107584302A (en) | A kind of frock of drilling machine | |
| CN220334674U (en) | Hydraulic support rotary adjusting mechanism | |
| CN212018995U (en) | Bottle bottom repairing device for aluminum alloy seamless gas bottle | |
| CN220393088U (en) | Hoisting device for extrusion cylinder | |
| CN111716283B (en) | Disassembling method of lower main shaft bushing for crankshaft | |
| CN215104851U (en) | Safety warning device for municipal works convenient to installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220208 |