CN109277774B - Bow side pushes away red cover frock of shaft coupling - Google Patents
Bow side pushes away red cover frock of shaft coupling Download PDFInfo
- Publication number
- CN109277774B CN109277774B CN201811110900.6A CN201811110900A CN109277774B CN 109277774 B CN109277774 B CN 109277774B CN 201811110900 A CN201811110900 A CN 201811110900A CN 109277774 B CN109277774 B CN 109277774B
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- coupler
- tray
- bottom plate
- cylinders
- tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
Abstract
The invention discloses a bow side push coupler shrink fit tool which comprises a tray, wherein a plurality of hollow cylinders are uniformly arranged in the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders. The tool has the advantages of simple structure, convenience in use, safety and reliability, the heating part is arranged, the coupler is heated and then moved onto a tray of the tool, a switch of the heating part is turned on, the coupler is continuously heated or insulated, then the coupler is aligned with a motor shaft to complete vertical shrink sleeving, heating and alignment are carried out simultaneously, sleeving is in place in one step, and errors are not easily caused; the heated coupler is supported by the tray bottom plate and is not easy to deform, and the coupler is completely cooled after being sleeved in place, so that cold shrinkage fixation is avoided when the coupler is not in place, and material waste is avoided; the hollow cylinder encloses a space for placing the heated coupler, so that the coupler is prevented from sliding back and forth on the tray bottom plate to influence the alignment of the coupler and the motor shaft.
Description
Technical Field
The invention relates to the technical field of tooling equipment for ships, in particular to a bow thrust coupler shrink fit tool.
Background
In a modern ship, a bow sideslip motor and a sideslip are connected through a coupler, the coupler and a shaft are in interference fit, the coupler and the shaft are installed in a shrink-fit mode, namely, the outer diameter of the motor shaft and the inner hole of the coupler are machined according to the fit interference, then the coupler is heated to enable the inner hole of the coupler to expand, the inner hole exceeds the outer diameter of the shaft by about 2mm, the coupler is quickly sleeved on the outer circle of the motor shaft, the coupler is fixed on the shaft to be naturally cooled by using a central bolt of the motor shaft, and the coupler is shrunk in place. However, in the shrink fit installation process, as the shrink fit temperature of the coupler reaches 130 ℃, the coupler cannot be operated by hands during lifting and cooling, a tool is urgently needed to assist in completing the shrink fit installation process of the coupler and the motor shaft.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a bow side pushing coupler shrink fit tool which is simple in structure, convenient to use, safe and reliable.
In order to achieve the purpose, the technical scheme of the invention is to design a bow side thrust coupler shrink fit tool which comprises a tray, wherein a plurality of hollow cylinders are uniformly arranged at the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders.
The coupler is installed in a shrink fit mode, the coupler is heated and expanded to the size, the coupler is removed from a heating source and then sleeved, the expanded coupler can shrink after the heating source is removed, therefore, the sleeving time is short, if the coupler is not sleeved in place, the coupler is fixed on a motor shaft in a shrink fit mode, the coupler can only be used for waste, materials are wasted, and the construction period is prolonged; the shrink-fit tool is provided with the heating part, the coupler is heated elsewhere and then moved to a tray of the tool, a switch of the heating part is turned on, the coupler is continuously heated or insulated, then the coupler is aligned with a motor shaft to complete vertical shrink-fit, heating and alignment are carried out simultaneously, the shrink-fit tool is in place in one step, the operation is simple and convenient, and errors are not easy to cause; the heated coupler is supported by the tray bottom plate and is not easy to deform, and the coupler is completely cooled after being sleeved in place, so that cold shrinkage fixation is avoided when the coupler is not in place, and material waste is avoided; the hollow cylinder encloses a certain accommodating space for placing the heated coupler, so that the coupler is prevented from sliding back and forth on the tray bottom plate to influence the alignment of the coupler and the motor shaft.
The preferred technical scheme is that a through hole is formed in the center of the tray, a cylindrical protrusion is arranged on the through hole, and an internal thread is formed in the inner wall of the cylindrical protrusion. The cylindrical bulge and the hollow column together limit the coupler to slide on the bottom plate of the tray, so that the coupler is convenient to align and mount better; the tool and the coupler are fixed on the motor shaft together through the motor shaft center bolt and the inner threads of the inner wall of the cylindrical protrusion for natural cooling, meanwhile, the tool and the coupler are installed and limited as the coupler, and the coupler is sleeved in place through shrinkage fit after the bolt is tightened.
In order to accelerate the cooling of the coupler and shorten the construction period, a further preferred technical scheme is that a cold air system is arranged on the lower bottom surface of the tray, and a plurality of air outlets of the cold air system are uniformly arranged on the outer edge of the tray and face the circle center of the tray.
According to a further preferred technical scheme, a level gauge is arranged on the lower bottom surface of the tray. In the shaft coupling installation, the constructor that is in the bottom plate below can observe the alignment condition of shaft coupling and motor shaft through the through-hole on the layer board bottom plate promptly, can also observe whether the shaft coupling keeps the level through the spirit level that sets up in the tray bottom surface, improves the red accuracy of cover of shaft coupling, avoids the installation error, causes the time limit for a project to delay, and the material is extravagant.
According to a further preferred technical scheme, an arc-shaped flaky temperature sensor is arranged in an annular bottom plate area formed by the cylindrical protrusions and the hollow cylinders on the bottom plate of the tray, and the temperature sensor is sequentially connected with a digital display screen and a power supply on the bottom surface of the supporting plate. The temperature sensor contacts with the shaft coupling, in the red cover installation, the temperature of sensing shaft coupling at any time, opens the heating part switch when the temperature of shaft coupling reduces, heats the shaft coupling, and when the temperature reaches the predetermined value, closes the heating part or opens the cold wind system, keeps the appropriate temperature and the inflation size of shaft coupling constantly.
In order to facilitate the close installation of the tray lifting coupler to the motor shaft, a further preferable technical scheme is that a handle is arranged on the periphery of the tray.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The invention has the advantages and beneficial effects that: the bow side pushing coupler shrink-fit tool has the advantages of simple structure, convenience in use, safety and reliability, is provided with the heating part, the coupler is heated elsewhere and then moved to a tray of the tool, a switch of the heating part is turned on, the coupler is continuously heated or insulated, then the coupler is aligned with a motor shaft to complete vertical shrink-fit, heating and alignment are carried out simultaneously, the sheathing is in place in one step, the operation is simple and convenient, and errors are not easily caused; the heated coupler is supported by the tray bottom plate and is not easy to deform, and the coupler is completely cooled after being sleeved in place, so that cold shrinkage fixation is avoided when the coupler is not in place, and material waste is avoided; the hollow cylinder encloses a certain accommodating space for placing the heated coupler, so that the coupler is prevented from sliding back and forth on the tray bottom plate to influence the alignment of the coupler and the motor shaft. In the shaft coupling installation, the constructor that is in the bottom plate below can observe the alignment condition of shaft coupling and motor shaft through the through-hole on the layer board bottom plate promptly, can also observe whether the shaft coupling keeps the level through the spirit level that sets up in the tray bottom surface, improves the red accuracy of cover of shaft coupling, avoids the installation error, causes the time limit for a project to delay, and the material is extravagant. The temperature sensor contacts with the shaft coupling, in the red cover installation, the temperature of sensing shaft coupling at any time, opens the heating part switch when the temperature of shaft coupling reduces, heats the shaft coupling, and when the temperature reaches the predetermined value, closes the heating part or opens the cold wind system, keeps the appropriate temperature and the inflation size of shaft coupling constantly.
Drawings
FIG. 1 is a schematic top view of a coupling shrink fit tool 1 according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a stem and side thrust coupling shrink fit tool of embodiment 2 of the invention;
FIG. 3 is a schematic top view of a coupling shrink fit tool of embodiment 3 of the invention;
fig. 4 is a schematic view of a bottom view structure of a bow thrusting coupler shrink fit tool in embodiment 3 of the invention.
In the figure: 1. a tray; 2. a hollow cylinder; 3. a through hole; 4. a handle; 5. an air outlet; 6. a temperature sensor; 7. a digital display screen; 8. power supply, 9, level gauge.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
As shown in figure 1, the invention relates to a bow side push coupler shrink fit tool, which comprises a tray 1, wherein a plurality of hollow cylinders 2 are uniformly arranged at the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders; a through hole 3 is formed in the center of the tray, a cylindrical protrusion is arranged on the through hole, and an internal thread is formed in the inner wall of the cylindrical protrusion; the outer periphery of the tray is provided with a handle 4.
The method for vertically sleeving the coupler and the motor shaft comprises the steps of firstly heating and expanding the coupler to a required size at a heating source, and then placing the coupler subjected to heating and expansion into a circular accommodating cavity surrounded by a hollow cylinder on the tool tray through hoisting or clamping; conveying the tool and the coupler to the lower part of a motor shaft of the coupler to be mounted; turning on a power switch of the heating part, heating or insulating the coupler, lifting the tray handle by a person or hoisting the tray handle by a machine, observing the alignment condition of the coupler and the motor shaft by a constructor through a through hole on a tray bottom plate, sleeving the coupler on the motor shaft, turning off a power supply of the heating part, fixing the tool and the coupler on the shaft by using a central bolt of the motor shaft for natural cooling, and simultaneously serving as mounting limit of the coupler, wherein the coupler is in place in a red sleeve after the bolt is tightened; and after the coupler is cooled, unscrewing the bolt to separate the tool from the motor shaft, and finishing the installation of the coupler.
Example 2
As shown in figure 2, the bow side push coupler shrink fit tool comprises a tray 1, wherein a plurality of hollow cylinders 2 are uniformly arranged in the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders; be equipped with the cold wind system on the bottom surface under the tray, a plurality of air outlets 5 of cold wind system evenly set up along the edge outside the tray, and all towards the tray centre of a circle.
Example 3
As shown in fig. 3 and 4, the bow side push coupler shrink fit tool comprises a tray 1, wherein a plurality of hollow cylinders 2 are uniformly arranged at the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders; an arc-shaped sheet-shaped temperature sensor 6 is arranged in an annular bottom plate area formed by the cylindrical protrusions on the bottom plate of the tray and the hollow columns in a surrounding mode, and the temperature sensor is sequentially connected with a digital display screen 7 and a power supply 8 on the bottom surface of the tray; a level gauge 9 is arranged on the lower bottom surface of the tray.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (1)
1. The bow side push coupler shrink fit tool is characterized by comprising a tray, wherein a plurality of hollow cylinders are uniformly arranged in the center of a bottom plate of the tray in the circumferential direction, the height of each cylinder is not more than that of a coupler, the radius of a circle formed by the cylinders is more than that of the coupler, and heating parts are arranged in the cylinders; an annular flaky temperature sensor is arranged in an annular bottom plate area formed by the cylindrical protrusions on the bottom plate of the tray and the hollow columns in a surrounding mode, and the temperature sensor is sequentially connected with a digital display screen and a power supply on the bottom surface of the tray; a cold air system is arranged on the lower bottom surface of the tray, and a plurality of air outlets of the cold air system are uniformly arranged on the outer edge of the tray and face the center of the tray; a through hole is formed in the center of the tray, a cylindrical protrusion is arranged on the through hole, and an internal thread is formed in the inner wall of the cylindrical protrusion; a level gauge is arranged on the lower bottom surface of the tray; the outer periphery of the tray is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110900.6A CN109277774B (en) | 2018-09-22 | 2018-09-22 | Bow side pushes away red cover frock of shaft coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811110900.6A CN109277774B (en) | 2018-09-22 | 2018-09-22 | Bow side pushes away red cover frock of shaft coupling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109277774A CN109277774A (en) | 2019-01-29 |
| CN109277774B true CN109277774B (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811110900.6A Active CN109277774B (en) | 2018-09-22 | 2018-09-22 | Bow side pushes away red cover frock of shaft coupling |
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| CN (1) | CN109277774B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195415A (en) * | 2010-03-19 | 2011-09-21 | 上海电气集团上海电机厂有限公司 | Sleeving method of coupler |
| CN202556330U (en) * | 2012-04-25 | 2012-11-28 | 中船澄西船舶修造有限公司 | Bow thruster shaft coupling mounting tool |
| CN204148805U (en) * | 2014-10-21 | 2015-02-11 | 中船钢构工程股份有限公司 | A kind of electrical heating hot jacket cage |
| CN206105286U (en) * | 2016-10-26 | 2017-04-19 | 上海船厂船舶有限公司 | A device that is used for bush cover red perpendicularly |
| CN107984159A (en) * | 2016-10-26 | 2018-05-04 | 上海船厂船舶有限公司 | Method for the device and the vertical hot jacket of bushing of the vertical hot jacket of bushing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9835255B2 (en) * | 2015-07-15 | 2017-12-05 | Scepter Us Holding Company | Relief valves and methods for installing the same |
-
2018
- 2018-09-22 CN CN201811110900.6A patent/CN109277774B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195415A (en) * | 2010-03-19 | 2011-09-21 | 上海电气集团上海电机厂有限公司 | Sleeving method of coupler |
| CN202556330U (en) * | 2012-04-25 | 2012-11-28 | 中船澄西船舶修造有限公司 | Bow thruster shaft coupling mounting tool |
| CN204148805U (en) * | 2014-10-21 | 2015-02-11 | 中船钢构工程股份有限公司 | A kind of electrical heating hot jacket cage |
| CN206105286U (en) * | 2016-10-26 | 2017-04-19 | 上海船厂船舶有限公司 | A device that is used for bush cover red perpendicularly |
| CN107984159A (en) * | 2016-10-26 | 2018-05-04 | 上海船厂船舶有限公司 | Method for the device and the vertical hot jacket of bushing of the vertical hot jacket of bushing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109277774A (en) | 2019-01-29 |
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