Shaft coiling device in shafting cabin

Abstract

The utility model relates to a shaft coiling device in a shafting cabin. The device comprises a variable speed motor, a planetary gear reduction box, a 2half turning gear, a connecting bolt with a copper sleeve, a transmission gear and a base. A three-stage torque amplifying mechanism (worm and gear transmission, planetary gear speed reduction and transmission gear-2half turning gear meshing) is used for amplifying the torque of the motor according to the proportion of 1: 2000, and a detachable 2half turning gear and a copper bush protection connecting structure of a shafting flange are matched, so that a 50-300 ton ship shafting can be driven to rotate at a low speed. The device has the advantages of being adjustable in positive and negative rotation, safe in torque protection and modularized in installation, solves the technical problem that rotation is difficult when a traditional shafting is synchronously centered, and improves installation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to shipbuilding technical field especially is a kind of shafting in-cabin shafting device. BACKGROUND

[0002] The shafting provides the sailing power for ship, is important component of ship, ensures the normal navigation of ship. With the rapid development of ship industry, shafting installation requirement is constantly improved, with the development of ship propulsion system, ship shafting is more and more complex and various, some shafting self-contained function, such as gear box, main engine etc. are self-contained shafting machine, but some ship shafting itself does not have the ability of shafting, such as some thrust bearing, propulsion motor etc. The traditional installation method cannot meet the needs of new type ship shafting installation, people need to explore and research constantly, improve shafting installation quality. High-quality shafting requires shafting rotation to be synchronous when shafting is centered after ship launching, and when shafting itself does not have the ability of shafting, it needs to add equipment to rotate shafting. Ship shafting is important component of ship, its installation quality affects the operation and safety of ship. Therefore, developing a set of ship shafting in-cabin shafting device has important significance for the improvement of shipbuilding skill.

[0003] In the prior art, the shafting provides the sailing power for ship, is important component of ship, ensures the normal navigation of ship. With the rapid development of ship industry, shafting installation requirement is constantly improved, the traditional installation method cannot meet the needs of new type ship shafting installation, people need to explore and research constantly, improve shafting installation quality. Ship traditional shafting is centered by the shafting itself self-contained shafting machine to make shaft rotate, and when ship shafting itself does not have the ability of shafting, shafting cannot meet synchronous centering, and shafting installation quality decreases. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a kind of shafting in-cabin shafting device, it has positive and negative rotation adjustable, safety torque protection, modular installation characteristics, solve the technical problem of the difficulty of rotation when traditional shafting is synchronous, improve installation efficiency.

[0005] The above utility model of the utility model is realized by the following technical scheme:

[0006] A kind of shafting in-cabin shafting device, including variable speed motor, reduction gearbox, 2half shafting gear, transmission gear, support bearing and base, the variable speed motor, the reduction gearbox, the transmission gear and the support bearing are installed on the base;

[0007] The variable speed motor is in transmission connection with the speed reducer, the transmission gear is installed on the output shaft of the speed reducer, the transmission gear is in rotary connection in the support bearing, the transmission gear is in mesh with the 2half disc gear, one side of the 2half disc gear is provided with an axle segment, and the bottom of the end of the axle segment away from the 2half disc gear is provided with a temporary mounting bearing.

[0008] As a further technical scheme of the utility model: a plurality of connecting bolts with copper bushings are arranged on the side of the 2half disc gear away from the axle segment, and the 2half disc gear is detachably connected with the shafting flange through the plurality of connecting bolts with copper bushings.

[0009] As a further technical scheme of the utility model: the speed reducer is a planetary gear speed reducer, the planetary gear speed reducer comprises a three-stage torque amplification structure, the first stage is a worm gear transmission mechanism, the second stage is a planetary gear set, and the third stage is mesh transmission of the transmission gear and the 2half disc gear.

[0010] As a further technical scheme of the utility model: the variable speed motor is connected with the speed reducer through a worm gear mechanism, the transmission ratio of the worm gear mechanism is 1:30, the speed reduction ratio of the planetary gear set is 1:50, and the mesh transmission ratio of the transmission gear and the 2half disc gear is 1:1.33.

[0011] In summary, the utility model has at least one of the following beneficial technical effects:

[0012] The utility model discloses a shafting in-cabin disc shaft device, which comprises a variable speed motor, a planetary gear speed reducer, a 2half disc gear, connecting bolts with copper bushings, a transmission gear and a base. The three-stage torque amplification mechanism (worm gear transmission, planetary gear speed reduction, transmission gear-2half disc gear meshing) realizes 1:2000 proportional amplification of motor torque, and the copper bushing protection connection structure of the detachable 2half disc gear and the shafting flange can drive a 50-300 ton level ship shafting to rotate at low speed. The utility model has the characteristics of forward and reverse rotation adjustment, safety torque protection and modular installation, solves the technical problem of difficult rotation during traditional shafting synchronous centering, and improves installation efficiency.

[0013] The utility model has the following advantages and characteristics:

[0014] 1. High degree of automation: one person can complete the operation after installation, and the synchronous centering of the shafting is simple and convenient, which reduces the labor intensity and improves the production efficiency.

[0015] 2. Improve the shafting installation quality: the shaft is rotated after the shafting is launched, and the shafting is rotated for synchronous centering, thereby improving the shafting installation quality.

[0016] 3. Improve the level of shipbuilding technology: realize the shafting in the ship shafting cabin, and improve the shipbuilding capacity.

[0017] 4. Provide large torque: the weight of the ship shafting is large, and the torque required to drive the shafting to rotate is extremely large. The ship shafting cabin shafting device realizes large-scale amplification of the motor torque through three-stage torque conversion.

[0018] 5. Strong adaptability: according to different ship shafting, only 2half shaft gears connected with the shaft flange need to be additionally prepared to realize the universal shafting cabin shafting device of different ship shafting.

[0019] 6. Safe and reliable: advanced safety protection measures are adopted to ensure the safety and reliability of the entire installation process. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a side view of the utility model.

[0021] Figure 2 is a schematic view of the overall structure of the utility model.

[0022] Reference signs: 1, temporary installation bearing; 2, shaft section; 3, variable speed motor; 4, reduction box; 5, 2half shaft gear; 6, connecting bolt; 7, transmission gear; 8, supporting bearing; 9, base. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be understood broadly, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment one:

[0027] With reference to Figure 1 and Figure 2 The utility model discloses a kind of shafting in-cabin disc shaft devices, including variable speed motor 3, reduction gearbox 4, 2half disc gear 5, transmission gear 7, support bearing 8 and base 9, variable speed motor 3, reduction gearbox 4, transmission gear 7 and support bearing 8 are installed on base 9;Variable speed motor 3 is connected with reduction gearbox 4, transmission gear 7 is installed on the output shaft of reduction gearbox 4, transmission gear 7 is rotatably connected in support bearing 8, transmission gear 7 is engaged with 2half disc gear 5, one side of 2half disc gear 5 is equipped with shaft section 2, and temporary mounting bearing 1 is provided at the bottom of the end of shaft section 2 away from 2half disc gear 5.

[0028] 2half disc gear 5 is provided with a plurality of copper sleeve connecting bolts 6 on the side away from shaft section 2, and 2half disc gear 5 is detachably connected with shafting flange through a plurality of copper sleeve connecting bolts 6.In the embodiment, the connecting bolt 6 is provided as six, and the six connecting bolts 6 are evenly distributed on one side of 2half disc gear 5.

[0029] Reduction gearbox 4 is planetary gear reduction gearbox, and the planetary gear reduction gearbox includes a three-stage torque amplification structure, the first stage is a worm gear transmission mechanism, the second stage is a planetary gear set, and the third stage is the meshing transmission of transmission gear 7 and 2half disc gear 5.Variable speed motor 3 is connected with reduction gearbox 4 through worm gear mechanism, the transmission ratio of worm gear mechanism is 1:30, the reduction ratio of planetary gear set is 1:50, and the meshing transmission ratio of transmission gear 7 and 2half disc gear 5 is 1:1.33.

[0030] (1) Technical scheme summary:

[0031] The shafting in-cabin shafting device is designed to provide power for the shafting of the ship without the ability of shafting itself, to realize the synchronous centering requirement of the shafting, and to improve the installation quality of the shafting. The system is mainly composed of an electric drive device, an electric control system, and a shaft turning mechanism (including a transmission gear 7, a 2half shaft turning gear 5, a base 9, a reduction box 4, etc.), and the device has the characteristics of high automation, good running stability, and high safety.

[0032] (2) System composition and function:

[0033] Electric drive device: motor frequency conversion can be adjusted to drive the shafting to run stably.

[0034] Electric control system: with functions of forward and reverse rotation, speed regulation, inching, setting safety torque, and emergency stop, and two control modes of electric control box and remote controller, to ensure convenient and reliable control of the device.

[0035] Shaft turning mechanism: composed of a transmission gear 7, a 2half shaft turning gear 5, a base 9, a reduction box 4, etc., through three-stage torque conversion to amplify the motor torque by a large proportion. First-stage torque amplification: the motor transmits torque to the planetary gear reduction box through worm gear to amplify torque; second-stage torque amplification: large-scale torque conversion through planetary gear; third-stage torque amplification: the planetary gear reduction box outputs the transmission gear 7 to drive the 2half shaft turning gear 5 to further amplify torque.

[0036] (3) Installation process:

[0037] Preparation work: hoist the shafting in-cabin shafting device to the installation position; prepare the channel steel for positioning and installing the device; install the drive motor on the shaft turning mechanism (remove the drive motor for narrow access into the cabin).

[0038] 2half shaft turning gear 5 installation: remove half of the shaft flange connecting bolts 6 (reserve half of the bolts not to be installed in advance), install the 2half shaft turning gear 5 on the shaft flange through these bolt holes, and make the 2half shaft turning gear 5 and the shaft flange into one body. To protect the shaft flange bolt holes from wear, copper sleeves need to be installed in the bolt holes to prevent the bolts from rubbing and pressing the shaft flange bolt holes.

[0039] Shaft turning mechanism installation: install the shaft turning mechanism based on the 2half shaft turning gear 5. Use channel steel to connect and fix the base 9 of the shaft turning mechanism with the ship structure. The transmission gear 7 of the installed shaft turning mechanism is well engaged with the 2half shaft turning gear 5.

[0040] Debugging operation: the shafting in-cabin shafting device is powered on, the safety torque is set, the emergency stop function is checked, the forward and reverse directions are determined (the shafting direction determines the forward and reverse directions of the shafting in-cabin shafting device), the shafting speed is adjusted to a low speed, and the shafting in-cabin shafting device is started to rotate the shaft, and the shafting speed is adjusted as needed.

[0041] The steps of using the shafting in-cabin shafting device to rotate the shaft are as follows:

[0042] Step 1, complete the preparation work before installing the shafting in-cabin shafting device. Hoist the shafting in-cabin shafting device to the installation position, prepare a hand-operated hoist above the installation position; prepare a channel steel for positioning and installing the device; install the drive motor on the shafting mechanism (remove the drive motor for narrow access); if the shafting installation is not completed and the shafting support is insufficient, install temporary bearing 1 at the appropriate position; if the intermediate bearing can bear force, temporary bearing 1 need not be installed.

[0043] Step 2, remove half of the shafting flange connecting bolts 6 (reserve half of the bolts not to be installed in advance). The bolt strength needs to be calculated in advance, and the bolt needs to meet the shafting shafting torsion force to ensure that the additional shafting in-cabin shafting device will not damage the shaft.

[0044] Step 3, install a copper sleeve in the shafting flange bolt hole, and use connecting bolts 6 to install 2half shafting gear 5 on the shafting flange, so that 2half shafting gear 5 is integrated with the shafting.

[0045] Step 4, install the shafting mechanism based on 2half shafting gear 5. Use a channel steel to connect and fix the base 9 of the shafting mechanism to the ship structure. The transmission gear 7 of the installed shafting mechanism is well engaged with 2half shafting gear 5.

[0046] Step 5, the shafting in-cabin shafting device is powered on, the safety torque is set, the emergency stop function is checked, the forward and reverse directions are determined (the shafting direction determines the forward and reverse directions of the shafting in-cabin shafting device), the shafting speed is adjusted to a low speed, and the shafting in-cabin shafting device is started to rotate the shaft, and the shafting speed is adjusted as needed.

[0047] The key technical innovation of the utility model is:

[0048] In-cabin shafting technology: some ships require synchronous centering of the shafting rotation after launching, and when the shafting itself does not have the ability to rotate the shaft, external equipment is needed to rotate the shaft. A shafting device is designed to be added to the shafting to achieve low-speed rotation of the shafting. The shafting device can be disassembled and assembled, and it is convenient to pass through narrow passages. The in-cabin shafting technology realizes the synchronous centering of the shafting of some ship types after launching.

[0049] High Torque Conversion Technology: Ship shafting systems are heavy, requiring extremely high torque to drive their rotation. This ship's shafting system incorporates a three-stage torque conversion system to amplify the motor torque significantly. First-stage torque amplification: The motor transmits torque to a planetary gear reducer via a worm gear, amplifying the torque. Second-stage torque amplification: Planetary gears perform a large-scale torque conversion. Third-stage torque amplification: The planetary gear reducer's output gear 7 drives the 2-half turning gear 5, further amplifying the torque.

[0050] Shaft system matching installation technology: The matching installation of the external shaft housing disc shaft assembly with the shaft system is a crucial foundation for realizing the disc shaft function. This technology involves the 2-half disc gear 5 being matched with the intermediate shaft flange to transmit the large torque generated by the disc shaft assembly in the shaft housing to the shaft system, thereby causing the shaft to rotate.

[0051] Safety control technology: Based on shaft system information, the required torque for rotation is estimated, and a safe torque is set on the control interface to prevent excessive torque from damaging the shaft system. The disc bearing device in the shaft system compartment adopts frequency conversion speed regulation control, enabling low-speed start-up, adjustable rotation speed, and emergency stop via both local and remote control.

[0052] High Torque Conversion Design: The disc shaft unit in the ship's shafting compartment is small in size but has high torque. Motor torque amplification technology is the core of the entire disc shaft unit. This ship's disc shaft unit amplifies the motor torque proportionally through three stages of torque conversion. First-stage torque amplification: The motor transmits torque to the planetary gear reducer via a worm gear, amplifying the torque. Second-stage torque amplification: The planetary gears perform a large-scale torque conversion. Third-stage torque amplification: The output transmission gear 7 of the planetary gear reducer drives the 2-half disc shaft gear 5, further amplifying the torque.

[0053] Shaft system matching installation design: The matching installation of the external shaft housing disc shaft assembly with the shaft system is a crucial foundation for the realization of the disc shaft function. This technology involves a 2-half disc gear 5 that is matched with the intermediate shaft flange, transmitting the large torque generated by the disc shaft assembly in the shaft housing to the shaft system, thereby causing the shaft to rotate (copper sleeve protects the stranded bolt holes).

[0054] This utility model has the following features:

[0055] New technology for synchronous alignment of shafting: A shafting rotation device inside the shafting compartment is designed to provide power for the rotation of ship shafting systems that do not have their own rotation capability. This achieves the synchronous alignment requirement for this type of shafting system and is of great significance for improving shipbuilding skills.

[0056] Improving shaft alignment quality: The disc shaft device inside the shaft compartment makes the stationary shaft rotate, realizing synchronous alignment of the shaft. The alignment quality of the shaft is greatly improved, which directly improves the installation quality of the shaft and extends the service life of the shaft.

[0057] Improve production efficiency: the invention of the shafting in-cabin shafting device aims to realize the rapid and accurate centering of the shafting through automation and intelligent technical means, thereby greatly improving the production efficiency.

[0058] Ensure operation safety: according to the required torque of the shafting information, the safety torque is set on the operation interface to prevent the damage of the shafting caused by excessive torque. The security and emergency stop setting can effectively avoid the risk of damage to the shafting caused by the misoperation of the construction personnel, and ensure the safety of the operation process.

[0059] Promote industrial automation upgrade: the research and application of the shafting in-cabin shafting device contribute to the upgrade and development of industrial automation. This automated production mode will lead the manufacturing industry to a more efficient, more environmentally friendly and more sustainable direction.

[0060] The implementation principle of the utility model is: the utility model discloses a kind of shafting in-cabin shafting device, the device includes variable speed motor 3, planetary gear reduction box, 2half disc gear 5, connecting bolt 6 with copper bush, transmission gear 7 and base 9. Through three-stage torque amplification mechanism (worm gear drive, planetary gear reduction, transmission gear 7-2half disc gear 5 meshing) realizes motor torque 1:2000 proportional amplification, cooperates with the copper bush protection connection structure of detachable 2half disc gear 5 and shafting flange, can drive 50-300 tons class ship shafting low-speed rotation. With positive and negative rotation adjustable, safety torque protection, modular installation features, solve the technical problem of difficult rotation when traditional shafting synchronous centering, improve installation efficiency.

[0061] The embodiments of the specific embodiment are the preferred embodiments of the utility model, not limited to the protection scope of the utility model, so: equivalent changes made according to the structure, shape, principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A shafting inboard disc shafting arrangement characterised in that, Including variable speed motor (3), reduction gearbox (4), 2half disc gear (5), transmission gear (7), support bearing (8) and base (9), the variable speed motor (3), the reduction gearbox (4), the transmission gear (7) and the support bearing (8) are installed on the base (9); The variable speed motor (3) is in transmission connection with the reduction gearbox (4), the transmission gear (7) is installed on the output shaft of the reduction gearbox (4), the transmission gear (7) is rotatably connected in the support bearing (8), the transmission gear (7) is engaged with the 2half disc gear (5), one side of the 2half disc gear (5) is provided with a shaft segment (2), and the bottom of the end of the shaft segment (2) away from the 2half disc gear (5) is provided with a temporary mounting bearing (1).

2. A shafting inboard disc shaft device according to claim 1, characterized in that, The side of the 2half disc gear (5) away from the shaft segment (2) is provided with a plurality of copper sleeve connecting bolts (6), and the 2half disc gear (5) is detachably connected with the shaft flange through the plurality of copper sleeve connecting bolts (6).

3. A shafting inboard disc shaft device according to claim 1, characterized in that, The reduction gearbox (4) is a planetary gear reduction gearbox, which comprises a three-stage torque amplification structure, the first stage is a worm gear transmission mechanism, the second stage is a planetary gear set, and the third stage is the meshing transmission of the transmission gear (7) and the 2half disc gear (5).

4. A shafting inboard disc shaft device according to claim 3, characterized in that, The variable speed motor (3) is connected with the reduction gearbox (4) through a worm gear mechanism, the transmission ratio of the worm gear mechanism is 1:30, the reduction ratio of the planetary gear set is 1:50, and the meshing transmission ratio of the transmission gear (7) and the 2half disc gear (5) is 1:1.33.

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