CN102241378B - Installation method of lead-screw retractor device for ship propeller - Google Patents
Installation method of lead-screw retractor device for ship propeller Download PDFInfo
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- CN102241378B CN102241378B CN 201110144787 CN201110144787A CN102241378B CN 102241378 B CN102241378 B CN 102241378B CN 201110144787 CN201110144787 CN 201110144787 CN 201110144787 A CN201110144787 A CN 201110144787A CN 102241378 B CN102241378 B CN 102241378B
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- negative thread
- lifting support
- lining
- screw mandrel
- thread lining
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Abstract
The invention discloses an installation method of a lead-screw retractor device for a ship propeller. The innovation point lies in that the installation method comprises the following installation steps of: making a left lead screw and a right lead screw pass through an installation hole of an elevating bracket; rotating an internal thread bush A on a lead screw till flange installation holes on the bush A are aligned to bush installation holes around an elevating bracket installation bracket at the same end; rotating another bush B till the distance between the upper end face of a convex shoulder of the bush B and the lower end face of the elevating bracket is consistent with the distance between the upper end face of a convex shoulder of the bush A and the lower end face of the elevating bracket; rotating the right lead screw till a flange installation hole on the bush B is aligned to a bush installation hole on the elevating bracket at the same end; putting the elevating bracket down and compressing the upper end faces of the convex shoulders of the bush A and the bush B by using the elevating bracket; and fixing with bolts. The elevating bracket is tightly jointed with the bushes, and alignment is realized by rotating the bushes without repeatedly rotating the lead screws, accurate and quick positioning is realized, the labor intensity is greatly lowered, and the working efficiency is increased. The installation method is suitable for batch installation.
Description
Technical field
The present invention relates to the installation method of a kind of marine propeller with screw mandrel formula retractor device.
Background technology
Screw mandrel formula retractor device is as a kind of lifting mechanism, and because of its working stability, reliable transmission is widely used in the up-down of large-scale valuable equipments such as marine propeller.But screw mandrel formula retractor device complex structure, setting accuracy requires high, has restricted applying of screw mandrel formula retractor device.Therefore, explore a kind of installation method of easy, Fast Installation screw mandrel formula retractor device, have important Research Significance for the installation of this kind equipment in the machine manufacture.
Marine propeller mainly comprises a lifting support with screw mandrel formula retractor device; Vertical through hole is established at the lifting support two ends, the coaxial screw mandrel that is provided with in the through hole, and the screw mandrel upper and lower end connects upper and lower bearing respectively; Screw mandrel is equipped with pilot bushing with lifting support through-hole wall contact position and is connected with the negative thread lining; Pilot bushing is installed in through hole top, and the negative thread lining is connected the through hole bottom, all adopts flange arrangement to connect.
About the installation method of marine propeller with screw mandrel formula retractor device; The method of mainly taking in the production practice is: respectively screw mandrel is passed the hole on the lifting support; Then the negative thread lining is screwed on the screw mandrel; Hole on the precession lifting support is adjacent to negative thread lining convex shoulder upper surface and lifting support lower surface always; Whether the hole on the inspection negative thread lining aligns with the lifting support hole, if do not align, unscrews the negative thread lining; The opposite spin screw mandrel is screwed the negative thread lining, so repeatedly more then; Combine with lifting support closely also to align with screw simultaneously up to the negative thread lining, bolt on then.The advantage of this method is just can work by other accessory appliances, and therefore application is also arranged, but it fits negative thread lining and lifting support with the ARTIFICIAL FORCE amount, is difficult to guarantee the compactness of applying, and needs adjustment repeatedly, and is time-consuming, effort.
Summary of the invention
The technical matters that the present invention will solve provides the installation method of a kind of marine propeller with screw mandrel formula retractor device; The convex shoulder of lifting support and negative thread lining is fitted accurate; And the accurate positioning of lifting support lining mounting hole and negative thread lining flange connecting bore, quick; Can easy, fast and accurate completion install.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of marine propeller is characterized in that with the installation method of screw mandrel formula retractor device: comprise following installation steps:
(1) at first with a pair of left screw mandrel, right screw mandrel vertically pass respectively lifting support a left side,
The mounting hole of right-hand member;
(2) respectively tapped left negative thread lining and right negative thread lining B are revolved respectively
To the lower end of described left screw mandrel, right screw mandrel;
(3) rotation should left side negative thread lining, makes that the flange on this left side negative thread lining is installed
Lining mounting hole contraposition around the mounting hole of hole and this end lifting support; Measure this moment should negative thread lining convex shoulder upper surface, a left side apart from the distance h of lifting support lower surface
1
(4) the right negative thread lining of rotation makes its convex shoulder upper surface apart from the lifting support lower surface
Distance h
2, make h
2=h
1The right screw mandrel of this right side negative thread lining is installed in rotation, and this right side negative thread lining rotates with right screw mandrel, and flange connecting bore and the lining mounting hole on this end lifting support on the right negative thread lining are aligned, and in this process, keeps h
2Constant;
(5) put down lifting support, lifting support is vertical whereabouts under the deadweight effect, goes up and down to prop up
The lower surface of frame compresses the convex shoulder upper surface of this left and right negative thread lining; Pass through bolt behind the flange connecting bore of this left and right negative thread lining in the locking that is threaded of the lining mounting hole of lifting support.
Said lifting support has adopted the measure of lifting support vertical drop guiding in dropping process; Specifically be; This left and right negative thread lining is when the bottom of left and right screw mandrel screws on the left and right screw mandrel in described step (2), and the top part of this left and right negative thread lining screws in the mounting hole of lifting support.
In said step (3), (4), adopt two groups of guide spiro rods respectively the flange mounting hole of described left and right negative thread lining and the lining mounting hole contraposition of cooresponding lifting support precisely to be controlled.
The shank portion of described guide spiro rod is smooth cylinder, and the end of guide spiro rod is a screw rod, and the flange mounting hole that uses one group of guide spiro rod to pass this left side negative thread lining is threaded with cooresponding lifting support mounting hole lining mounting hole all around; The flange mounting hole that uses another group guide spiro rod to pass this right side negative thread lining is threaded with cooresponding lifting support mounting hole lining mounting hole all around; Carry out described step (5) then, compress the convex shoulder upper surface of this left and right negative thread lining in the lower surface of lifting support after, with bolt replace guide spiro rod should left and right negative thread lining and lifting support fastening.
The invention has the advantages that: during installation, utilize the deadweight of lifting support the lifting support lower surface to be pressed on the upper surface of convex shoulder of two negative thread linings, fit closely; And lifting support lining mounting hole is when aliging with negative thread lining flange connecting bore, need not repeatedly rotary screw rod and the lining of screwing is realized.Accurate positioning, quick reduces labor intensity greatly, increases work efficiency, and suitable batch is installed.
Description of drawings
Fig. 1 is that screw mandrel of the present invention passes the lifting support scheme drawing;
Fig. 2 is that negative thread lining of the present invention is screwed on the screw mandrel and installs the lower bearing scheme drawing;
Fig. 3 is that lining height adjustment of the present invention is good and penetrate the guide spiro rod scheme drawing;
Fig. 4 is an installation scheme drawing of the present invention.
The specific embodiment
As shown in Figure 1, at first pre-install head bearing 1 respectively in the upper end of left and right screw mandrel 2A, 2B, pre-install pilot bushing 4 respectively in two mounting holes upper end of lifting support 5 left and right ends, with bolt 3 flange of pilot bushing 4 upper ends is connected with lifting support 5 and fixes; The lower ends downward of left and right screw mandrel 2A, 2B is passed the left and right mounting hole of lifting support 5 respectively.
As shown in Figure 2, be screwed into respectively on left and right screw mandrel 2A and the screw mandrel 2B from the lower end with left and right negative thread lining 6A and 6B, and lower bearing 7 be installed respectively in the lower end of left and right screw mandrel 2A, 2B.
As shown in Figure 3, continue upwards to revolve left negative thread lining 6A, until this left side negative thread lining
Top precession lifting support 5 mounting holes of cover 6A, and the convex shoulder upper surface that makes left negative thread lining 6A flange is apart from lifting support 5 lower surface 100mm.With support tubes carry out rigidly connected left negative thread lining 6A between lifting support 5 and the hull structure this moment is negative thread, and left screw mandrel 2A is externally threaded, and both are spun on together, so can not move each other.Left side screw mandrel 2A up and down two ends all by bearing fixing on hull structure, be equivalent to hull structure be rigidly connected, so screw mandrel itself can not move yet.Check whether flange connecting bore and the lining mounting hole of lifting support 5 on the left negative thread lining 6A align,, continue to rotate up left negative thread lining 6A to the lining mounting hole of flange connecting bore and lifting support 5 and align if do not align.Accurate for guaranteeing contraposition; In the lining mounting hole of the flange mounting hole of two groups of left side negative thread lining 6A and cooresponding lifting support 5, a guide spiro rod 8 is installed; The shank portion of guide spiro rod 8 is smooth cylinder; And the end is a screw rod, and screw rod one end of guide spiro rod 8 passes the flange connecting bore of left negative thread lining 6A, and the lining mounting hole on the precession lifting support 5.
With the distance h of inside micrometer measurement left negative thread lining 6A convex shoulder upper surface this moment apart from lifting support 5 lower surfaces
1, the locking inside micrometer.
Then, rotate up right negative thread lining 6B, be threaded to the distance h of negative thread lining 6B convex shoulder upper surface, this right side apart from lifting support 5 lower surfaces
2, and make h
2=h
1Check whether flange connecting bore and the lining mounting hole on the lifting support 5 on the right negative thread lining 6B align; If do not align; The screw mandrel 2B of right negative thread lining 6B is installed in rotation; Right screw mandrel 2B drives should consistent rotation of right side negative thread lining 6B, makes that flange connecting bore and the lining mounting hole on this end lifting support 5 on the right negative thread lining 6B aligns.Right screw mandrel 2B is fixed on the hull structure by bearing 1 and 7 at two ends up and down, and the screw mandrel deadweight also has 3 tons, can guarantee also that by its weight right screw mandrel 2B can not move axially.Owing to do not relatively rotate at this process right-of-center in political views negative thread lining 6B and right screw mandrel 2B, so can keep the distance h of negative thread lining 6B convex shoulder upper surface, this right side apart from the lifting support lower surface
2Constant.After right negative thread lining 6B and this end lifting support 5 contrapositions, pass this right side negative thread lining 6B flange connecting bore, the lining mounting hole on the guide spiro rod 8 end precession lifting supports 5 through another group guide spiro rod 8.
As shown in Figure 4, put down lifting support 5, lifting support 5 is vertical whereabouts under the deadweight effect, and the lower surface of lifting support 5 compresses the upper surface of the convex shoulder of left and right negative thread lining 6A and 6B; Check the upper surface of left and right negative thread lining 6A and 2B convex shoulder and the compactness that lifting support 5 lower surfaces are fitted with clearance gauge.After qualified, remove guide spiro rod 8, pass the flange connecting bore of left and right negative thread lining 6A, 6B with bolt 9 after, locking is threaded with the lining mounting hole of lifting support 5.
Claims (3)
1. a marine propeller is characterized in that: comprise following installation steps with the installation method of screw mandrel formula retractor device:
(1) at first a pair of left screw mandrel, right screw mandrel are vertically passed the mounting hole of the left and right end of lifting support respectively;
(2) respectively tapped left negative thread lining and the right negative thread lining bottom from described left screw mandrel, right screw mandrel is screwed on the left and right screw mandrel;
(3) rotation should left side negative thread lining; Make lining mounting hole contraposition around the mounting hole of flange connecting bore and this end lifting support on this left side negative thread lining; Accurate for guaranteeing contraposition; In the lining mounting hole of the flange connecting bore of left negative thread lining and cooresponding lifting support, guide spiro rod is installed, this group guide spiro rod passes the flange connecting bore of this left side negative thread lining and is threaded with lining mounting hole around the cooresponding lifting support mounting hole; Measure this moment should negative thread lining convex shoulder upper surface, a left side apart from the distance h of lifting support lower surface
1
(4) the right negative thread lining of rotation makes the distance h of its convex shoulder upper surface apart from the lifting support lower surface
2, make h
2=h
1The right screw mandrel of this right side negative thread lining is installed in rotation, and this right side negative thread lining rotates with right screw mandrel, and flange connecting bore and the lining mounting hole on this end lifting support on the right negative thread lining are aligned, and in this process, keeps h
2Constant, after right negative thread lining and this end lifting support contraposition, pass this right side negative thread lining flange connecting bore, the lining mounting hole on the cooresponding lifting support of guide spiro rod end precession through another group guide spiro rod;
(5) put down lifting support; Lifting support is vertical whereabouts under the deadweight effect; The lower surface of lifting support compresses the convex shoulder upper surface of this left and right negative thread lining; Compress the convex shoulder upper surface of this left and right negative thread lining in the lower surface of lifting support after, with bolt replace guide spiro rod should left and right negative thread lining and lifting support fastening, pass behind the flange connecting bore of this left and right negative thread lining the locking that is threaded with the lining mounting hole of lifting support through bolt.
2. marine propeller according to claim 1 is with the installation method of screw mandrel formula retractor device; It is characterized in that: said lifting support has adopted the measure of lifting support vertical drop guiding in dropping process; Specifically be; This left and right negative thread lining is when the bottom of left and right screw mandrel screws on the left and right screw mandrel in described step (2), and the top part of this left and right negative thread lining screws in the mounting hole of lifting support.
3. marine propeller according to claim 1 is characterized in that with the installation method of screw mandrel formula retractor device: the shank portion of described guide spiro rod is smooth cylinder, and the end of guide spiro rod is a screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144787 CN102241378B (en) | 2011-06-01 | 2011-06-01 | Installation method of lead-screw retractor device for ship propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110144787 CN102241378B (en) | 2011-06-01 | 2011-06-01 | Installation method of lead-screw retractor device for ship propeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102241378A CN102241378A (en) | 2011-11-16 |
| CN102241378B true CN102241378B (en) | 2012-12-26 |
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ID=44959666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110144787 Expired - Fee Related CN102241378B (en) | 2011-06-01 | 2011-06-01 | Installation method of lead-screw retractor device for ship propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102241378B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111098996B (en) * | 2019-11-18 | 2021-04-02 | 友联船厂（蛇口）有限公司 | Installation process of telescopic propeller of ship |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048978A2 (en) * | 1980-09-30 | 1982-04-07 | Siemens-Elema AB | Screw nut transmission for vertical displacement of a load (fall arrest safety device) |
| CN101559836A (en) * | 2008-04-15 | 2009-10-21 | 中国国际海运集装箱(集团)股份有限公司 | Aerobridge lifting device and method for adjusting same |
| CN101972930A (en) * | 2010-10-11 | 2011-02-16 | 铜陵天奇蓝天机械设备有限公司 | Carrier roller exchanging device of belt conveyor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004345835A (en) * | 2003-05-23 | 2004-12-09 | Culture Machine:Kk | Elevator device and synchronous rotation output shaft device |
-
2011
- 2011-06-01 CN CN 201110144787 patent/CN102241378B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0048978A2 (en) * | 1980-09-30 | 1982-04-07 | Siemens-Elema AB | Screw nut transmission for vertical displacement of a load (fall arrest safety device) |
| CN101559836A (en) * | 2008-04-15 | 2009-10-21 | 中国国际海运集装箱(集团)股份有限公司 | Aerobridge lifting device and method for adjusting same |
| CN101972930A (en) * | 2010-10-11 | 2011-02-16 | 铜陵天奇蓝天机械设备有限公司 | Carrier roller exchanging device of belt conveyor |
Non-Patent Citations (4)
| Title |
|---|
| 丝杠-螺母式舞台升降台运行不平稳分析;娄海峰;《起重运输机械》;20060731(第7期);66-70 * |
| 吕振刚.组合平板调水平的简便方法.《中国计量》.2005,(第11期), |
| 娄海峰.丝杠-螺母式舞台升降台运行不平稳分析.《起重运输机械》.2006,(第7期), |
| 组合平板调水平的简便方法;吕振刚;《中国计量》;20051110(第11期);67-68 * |
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|---|---|
| CN102241378A (en) | 2011-11-16 |
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