CN114802645B

CN114802645B - Screw shaft feeding device and screw shaft feeding method

Info

Publication number: CN114802645B
Application number: CN202210324281.0A
Authority: CN
Inventors: 林灿峰
Original assignee: Guangzhou Shipyard International Co Ltd
Current assignee: Guangzhou Shipyard International Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-07-14
Anticipated expiration: 2042-03-29
Also published as: CN114802645A

Abstract

The invention belongs to the technical field of ship manufacturing, and discloses a stern shaft feeding device and a stern shaft feeding method, wherein the stern shaft feeding device comprises a rail, a rear car device, a front car device, a connecting rod and a range finder, the rear car device and a plurality of front car devices are sequentially arranged on the rail, connecting rods are arranged between the front car device and the rear car device adjacent to the rear car device and between the front car devices adjacent to the rear car device, and the rear car device and the front car device can move along the extending direction of the rail; the range finders are provided with a plurality of and can be fixed on the first ship shaft hole, and the range finders are used for detecting the position of the stern shaft relative to the first ship shaft hole. The stern shaft feeding device provided by the invention is convenient for fixing the stern shaft, is convenient for coaxially positioning the stern shaft and the shaft hole of the ship, has stable whole process of feeding, effectively saves manpower and material resources, and reduces the time consumption of feeding the stern shaft.

Description

Screw shaft feeding device and screw shaft feeding method

Technical Field

The invention relates to the technical field of ship manufacturing, in particular to a stern shaft feeding device and a stern shaft feeding method.

Background

The stern shaft, also called tail shaft. The stern shaft is the last section of shaft in the shafting, and the head end flange is connected with the intermediate shaft flange by a close-fit bolt; the tail end is conical and is used for installing a propeller. The stern shaft of the large ship is arranged on two bearings of the ship shaft hole. A tail bearing, i.e. the part of the hull in contact with water; the other front bearing is connected with the cabin. The stern shaft of a large ship is generally heavy, and the difficulty of penetrating the stern shaft into the shaft hole is great.

In the prior art, manpower is generally adopted, and a crane, an overhead crane, a hoist, a scaffold platform and the like are used as auxiliary forms to penetrate a stern shaft into a ship shaft hole. Firstly, the existing stern shaft feeding method occupies long equipment resource time, needs more equipment coordination, has large earlier-stage workload of setting up a scaffold, and consumes a large amount of manpower. Secondly, screw shaft is to hole adjustment time overlength, needs manpower adjustment and jack cooperation, and screw shaft supporting seat does not have walking power, does not possess steering function yet, need remove with the help of fork truck, and complex operation. In addition, if the top of the stern shaft support seat is not enough, the cushion blocks are required to be repeatedly assembled and disassembled, so that time and labor are consumed. The whole screw shaft feeding process consumes manpower and material resources and has high time cost.

Disclosure of Invention

The invention aims to provide a stern shaft feeding device which can effectively save manpower and material resources and is short in stern shaft feeding time.

To achieve the purpose, the invention adopts the following technical scheme:

provided is a stern shaft feeding device including:

the track extends along a first direction, a rear vehicle device and a plurality of front vehicle devices are sequentially arranged on the track, connecting rods are arranged between the front vehicle devices adjacent to the rear vehicle device and between the front vehicle devices adjacent to the rear vehicle device, and the rear vehicle device and the front vehicle device can move along the extending direction of the track; wherein, the liquid crystal display device comprises a liquid crystal display device,

The rear car device is provided with a clamp mechanism, a first translation mechanism, a first jacking mechanism and a first moving mechanism, wherein the clamp mechanism can fix the stern shaft, the first translation mechanism can drive the clamp mechanism to move along a second direction, the first jacking mechanism can lift the clamp mechanism, and the first moving mechanism can drive the rear car device to move on a rail;

the front vehicle device is provided with a supporting roller, a second translation mechanism, a second jacking mechanism and a second moving mechanism, wherein the supporting roller can support the stern shaft, the second translation mechanism can drive the supporting roller to move along a second direction, the second jacking mechanism can lift the supporting roller, and the second moving mechanism can drive the front vehicle device to move on a rail;

the range finders are provided with a plurality of range finders and can be fixed on the first ship shaft hole, and the range finders are used for detecting the position of the stern shaft relative to the first ship shaft hole.

Optionally, the first jacking mechanism comprises a first base and a first platform, a first jacking oil cylinder and a first guide assembly are arranged between the first base and the first platform, the first jacking oil cylinder can drive the first platform to move along the first guide assembly, and a first translation mechanism is arranged on the first platform.

Optionally, a first anti-falling component is further arranged between the first base and the first platform, and the first anti-falling component can prevent the first platform from falling towards the first base.

Optionally, the first translation mechanism includes a first slip table slidably connected with the first jacking mechanism and a first horizontal cylinder arranged between the first jacking mechanism and the first slip table, the first horizontal cylinder can drive the first slip table to move, and the first slip table is provided with a clamp mechanism.

Optionally, the fixture mechanism comprises two axle-holding arms rotationally connected with the first translation mechanism, and an axle-holding oil cylinder is arranged between the two axle-holding arms and the first translation mechanism and can drive the axle-holding arms to clamp the stern shaft.

Optionally, the second jacking mechanism comprises a second base and a second platform, a second jacking oil cylinder and a second guiding component are arranged between the second base and the second platform, the second jacking oil cylinder can drive the second platform to move along the second guiding component, and a second translation mechanism is arranged on the second platform.

Optionally, a second anti-falling component is further arranged between the second base and the second platform, and the second anti-falling component can prevent the second platform from falling towards the second base.

Optionally, the second translation mechanism includes a second sliding table slidingly connected with the second jacking mechanism and a second horizontal cylinder arranged between the second jacking mechanism and the second sliding table, the second horizontal cylinder can drive the second sliding table to move, and a supporting roller is arranged on the second sliding table.

Another object of the present invention is to provide a method for feeding a stern shaft, which is suitable for the stern shaft feeding device.

To achieve the purpose, the invention adopts the following technical scheme:

the shaft feeding method using the stern shaft feeding device comprises the following steps:

s100, hoisting the stern shaft on a rear vehicle device and a plurality of front vehicle devices, and fixing the stern shaft by using a clamp mechanism;

s200, according to the position information of the distance meter, which is used for detecting the position of the stern shaft relative to the first ship shaft hole, the position of the stern shaft is adjusted through the first translation mechanism, the first jacking mechanism, the second translation mechanism and the second jacking mechanism, so that the stern shaft is coaxial with the first ship shaft hole;

s300, driving the rear vehicle device to move on the rail through the first moving mechanism, driving the front vehicle device to move on the rail through the second moving mechanism, and synchronously lifting the stern shaft through the first jacking mechanism and the second jacking mechanism to enable the stern shaft to be coaxial with the ship shaft hole;

s400, after the stern shaft passes through the first ship shaft hole for a certain distance, sequentially removing all connecting rods from the connecting rods facing to one end of the first ship shaft hole, moving the separated front truck device between the first ship shaft hole and the second ship shaft hole, continuously supporting the stern shaft, and moving the stern shaft forwards for a certain distance every removing one connecting rod until the stern shaft is spliced into the second ship shaft hole.

Optionally, when two front car apparatuses are provided, step S400 specifically includes the following steps:

s410, when the first front car device is close to the first shaft hole, removing the first connecting rod, and moving the first front car device between the first shaft hole and the second shaft hole to continuously support the stern shaft;

s420, when the second front car device is close to the first shaft hole, removing the second connecting rod, and moving the second front car device to a position between the first shaft hole and the second shaft hole to continuously support the stern shaft;

s430, the rear car device continuously moves towards the first ship shaft hole so that the stern shaft is inserted into the second ship shaft hole.

The beneficial effects are that:

according to the stern shaft feeding device and the stern shaft feeding method, firstly, the stern shaft is hoisted on the rear vehicle device and the front vehicle devices, and the stern shaft is fixed by the clamp mechanism, so that the stern shaft feeding device is simple and convenient; then, according to the position information of the stern shaft relative to the first ship shaft hole detected by the range finder, the first moving mechanism drives the rear car device to move on the rail, and the second moving mechanism drives the front car device to move on the rail, and simultaneously the first lifting mechanism and the second lifting mechanism synchronously lift the stern shaft, so that the stern shaft and the ship shaft hole are coaxial, the convenience and the rapidness are realized, and the accuracy of the advance shaft can be ensured; after the stern shaft passes through the first shaft hole for a certain distance, all connecting rods are removed from the connecting rods facing to one end of the first shaft hole in sequence, the separated rear vehicle device is moved between the first shaft hole and the second shaft hole to continuously support the stern shaft, and each connecting rod is removed to move the stern shaft forwards until the stern shaft is inserted into the second shaft hole, so that the whole process of the inlet shaft is stable. The stern shaft feeding device and the stern shaft feeding method can effectively save manpower and material resources and reduce the time consumption of the stern shaft feeding. In addition, the rear car device and the front car devices are connected through the connecting rods, so that stability in the process of entering the shaft can be guaranteed, and the motion synchronism of the rear car device and the front car devices can be guaranteed.

Drawings

FIG. 1 is a schematic view of a stern shaft according to a first embodiment of the present invention before starting the stern shaft;

FIG. 2 is a schematic view of a stern shaft according to an embodiment of the present invention after the stern shaft is advanced;

FIG. 3 is a schematic view of a structure of a stern shaft supporting device according to a first embodiment of the present invention;

FIG. 4 is an enlarged schematic view of FIG. 3A according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a rear vehicle device according to a first embodiment of the present invention;

FIG. 6 is a cross-sectional view of a rear truck apparatus provided in accordance with a first embodiment of the present invention;

fig. 7 is a schematic structural diagram of a front vehicle device according to a first embodiment of the present invention;

FIG. 8 is a cross-sectional view of a front truck apparatus provided in accordance with a first embodiment of the present invention;

fig. 9 is a flowchart of an approach method according to a second embodiment of the present invention.

In the figure:

100. a rail;

200. a rear vehicle device; 210. a clamp mechanism; 211. a shaft arm; 212. a shaft-locking oil cylinder; 220. a first translation mechanism; 221. a first sliding table; 222. a first horizontal cylinder; 230. a first lifting mechanism; 231. a first base; 232. a first platform; 2321. a first guardrail; 233. a first lift cylinder; 234. a first guide assembly; 2341. a first guide sleeve; 2342. a first guide sleeve; 241. a first travel assembly; 2411. a first traveling wheel; 2412. a first driving motor; 242. a hoist; 250. a first fall arrest assembly; 251. a first sleeve; 252. a first screw; 253. a first hand-screwed nut; 260. a first ladder; 270. the first foot lifting oil cylinder; 281. a first hydraulic system; 282. a first operation box; 283. a display screen;

300. A front vehicle device; 310. a supporting roller; 320. a second translation mechanism; 321. a second sliding table; 322. a second horizontal cylinder; 330. a second lifting mechanism; 331. a second base; 332. a second platform; 3321. a second guardrail; 333. a second jack-up cylinder; 334. a second guide assembly; 3341. a second guide sleeve; 3342. a second guide sleeve; 340. a second walking assembly; 341. a second travelling wheel; 342. a second driving motor; 350. a second fall arrest assembly; 351. a second sleeve; 352. a second screw; 353. a second hand-screwed nut; 360. a second ladder; 370. a second foot lifting oil cylinder; 381. a second hydraulic system; 382. a second operation box;

400. a connecting rod;

510. a range finder; 520. a wireless transmitter;

610. a stern shaft; 620. a first axle hole; 630. a second axle hole; 640. and a fixing piece.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Example 1

The shaft hole of the ship comprises a first shaft hole 620 and a second shaft hole 630, a tail bearing is arranged in the first shaft hole, a front bearing is arranged in the second shaft hole 630, and the stern shaft 610 is inserted into the tail bearing and the front bearing.

Referring to fig. 1 to 8, the present embodiment provides a stern shaft approach device, which includes a rail 100, a rear vehicle device 200, a front vehicle device 300, a connecting rod 400 and a range finder 510, wherein the rail 100 extends along a first direction, the rear vehicle device 200 and a plurality of front vehicle devices 300 are sequentially arranged on the rail 100, the connecting rod 400 is arranged between the front vehicle device 300 adjacent to the rear vehicle device 200 and between the adjacent front vehicle devices 300, and the rear vehicle device 200 and the front vehicle device 300 can move along the extending direction of the rail 100; the rangefinder 510 is provided with a plurality of rangefinders which can be fixed on the first axle hole 620, and the rangefinder 510 is used for detecting the position of the stern axle 610 relative to the first axle hole 620. The rear car device 200 is provided with a clamp mechanism 210, a first translation mechanism 220, a first jacking mechanism 230 and a first moving mechanism, wherein the clamp mechanism 210 can fix the stern shaft 610, the first translation mechanism 220 can drive the clamp mechanism 210 to move along a second direction, the first jacking mechanism 230 can lift the clamp mechanism 210, and the first moving mechanism can drive the rear car device 200 to move on the rail 100; the front vehicle device 300 is provided with a supporting roller 310, a second translation mechanism 320, a second jacking mechanism 330 and a second moving mechanism, the supporting roller 310 can support the stern shaft 610, the second translation mechanism 320 can drive the supporting roller 310 to move along a second direction, the second jacking mechanism 330 can lift the supporting roller 310, and the second moving mechanism can drive the front vehicle device 300 to move on the rail 100.

Firstly, hoisting a stern shaft 610 on a rear car device 200 and a plurality of front car devices 300, and fixing the stern shaft 610 by a clamp mechanism 210, thereby being simple and convenient; then, according to the position information of the stern shaft 610 relative to the first axle hole 620 detected by the range finder 510, the first moving mechanism drives the rear car device 200 to move on the track 100 and the second moving mechanism drives the front car device 300 to move on the track 100, and simultaneously the first lifting mechanism 230 and the second lifting mechanism 330 synchronously lift the stern shaft 610, so that the stern shaft 610 is coaxial with the axle hole, the operation is convenient and quick, and the accuracy of the advance shaft can be ensured; after the stern shaft 610 passes through the first shaft hole 620 for a certain distance, all the connection rods 400 are removed in sequence from the connection rod 400 toward one end of the first shaft hole 620, and the separated rear car device 200 is moved between the first shaft hole 620 and the second shaft hole 630 to continuously support the stern shaft 610, and each removed connection rod 400 moves the stern shaft 610 forward until the stern shaft 610 is inserted into the second shaft hole 630, so that the whole process of the entering shaft is stable. The stern shaft feeding device and the stern shaft feeding method can effectively save manpower and material resources and reduce the time for feeding the stern shaft 610. In addition, the rear vehicle device 200 and the plurality of front vehicle devices 300 are connected through the connection rod 400, so that stability in the process of entering the shaft can be ensured, and the motion synchronism of the rear vehicle device 200 and the plurality of front vehicle devices 300 can also be ensured.

Further, the second direction is a horizontal direction and perpendicular to the first direction.

Further, the rail 100 is composed of a plurality of parallel rails. Preferably, the rail 100 is formed from a combination of two parallel tracks. In this embodiment, the axis of the axle hole is symmetrically and horizontally placed on the ground with the axis of the axle hole as the center line.

Preferably, the front truck apparatus 300 is provided with two.

Further, the connecting rod 400 may be adjusted according to the length of the stern shaft 610 so as to be suitable for the stern shaft 610 of different lengths. Further, a plurality of connection rods 400 are provided between the front vehicle device 300 adjacent to the rear vehicle device 200 and between the adjacent front vehicle devices 300. Preferably, two connection rods 400 are provided between the front car device 300 adjacent to the rear car device 200 and between the adjacent front car devices 300. Specifically, the connecting rod 400 is a rigid connecting rod 400.

Further, the rear vehicle device 200 and the front vehicle device 300 are both provided with a cable and a cable drum, so that the connection of an external power supply is facilitated.

In this embodiment, as shown in fig. 4 to 6, the first lifting mechanism 230 includes a first base 231 and a first platform 232, a first lifting cylinder 233 and a first guiding component 234 are disposed between the first base 231 and the first platform 232, and the first lifting cylinder 233 can drive the first platform 232 to move along the first guiding component 234, and the first translation mechanism 220 is disposed on the first platform 232. In this embodiment, the first guide assembly 234 stabilizes the movement of the first platform 232.

Specifically, the fixing base of the first jack-up cylinder 233 is fixed on the first base 231, and the output end of the first jack-up cylinder 233 is connected to the first platform 232. Of course, the first jack cylinder 233 may also be an electric cylinder or other driving device.

Specifically, the first guide assembly 234 includes a first guide sleeve 2341 and a first guide sleeve 2342 sleeved in the first guide sleeve, the first guide sleeve 2341 is slidably connected with the first guide sleeve 2342, the first guide sleeve is fixed on the first base 231 toward one end of the first base 231 and extends in the vertical direction, and the first guide sleeve 2342 is fixed on the first platform 232 toward one end of the first platform 232 and extends in the vertical direction. Further, the first jack cylinder 233 is disposed in the first guide sliding sleeve and the first guide sleeve 2342.

Further, the first guide assembly 234 and the first lift cylinder 233 are each provided in plurality. Preferably, both the first guide assembly 234 and the first lift cylinder 233 are provided.

Further, the first platform 232 is further provided with a first guardrail 2321, and the first guardrail 2321 can effectively ensure personal safety of staff. Further, a first clamping piece is detachably arranged between the first guardrail 2321 and the first platform 232, when the first clamping piece is installed, the first guardrail 2321 is fixed on the first platform 232, and when the first clamping piece is detached, the first guardrail 2321 can rotate around the first platform 232 to lay down the first guardrail 2321 so as to prevent interference.

Further, the first seat 231 and the first platform 232 are both provided with a first ladder stand 260, so that a worker can conveniently reach the first platform 232.

In this embodiment, a first fall protection component 250 is further disposed between the first seat 231 and the first platform 232, and the first fall protection component 250 can prevent the first platform 232 from falling toward the first seat 231. Specifically, the first fall protection assembly 250 includes a first sleeve 251, a first screw 252 inserted into the first sleeve 251, and a first hand-screwed nut 253 screwed with the first screw 252, wherein the first sleeve 251 is fixed on the first base 231 toward one end of the first base 231 and extends in the vertical direction, and the first screw 252 is fixed on the first platform 232 toward one end of the first platform 232 and extends in the vertical direction. In this embodiment, after the first lifting cylinder 233 drives the first platform 232 to move away from the first base 231 by a certain distance, the first hand-screwed nut 253 is screwed, so that the first hand-screwed nut 253 abuts against the first sleeve 251, so as to prevent the first platform 232 from falling down due to falling back of the cylinder output end.

In this embodiment, the first translation mechanism 220 includes a first sliding table 221 slidably connected to the first lifting mechanism 230, and a first horizontal cylinder 222 disposed between the first lifting mechanism 230 and the first sliding table 221, where the first horizontal cylinder 222 can drive the first sliding table 221 to move, and the first sliding table 221 is provided with the clamp mechanism 210. In the embodiment, the first sliding table 221 is driven to move by the first horizontal oil cylinder 222, so that the structure is simple and the operation is easy.

Specifically, the first sliding table 221 is disposed on the first platform 232 and is slidably connected to the first platform 232. Further, the first sliding table 221 may be slidably connected to the first platform 232 through a sliding bearing mechanism, or may be slidably connected to the first platform 232 through a sliding rail and sliding mechanism or other sliding mechanisms, which is not limited herein.

Specifically, the fixing base of the first horizontal cylinder 222 is fixed on the first platform 232, and the output end of the first horizontal cylinder 222 is connected with the first sliding table 221. Of course, the first horizontal cylinder 222 may also be an electric cylinder or other driving device.

In this embodiment, the clamp mechanism 210 includes two axle-holding arms 211 rotatably connected to the first translation mechanism 220, and an axle-holding cylinder 212 is disposed between the two axle-holding arms 211 and the first translation mechanism 220, where the axle-holding cylinder 212 can drive the axle-holding arms 211 to clamp the stern shaft 610. In this embodiment, the axle-holding arm 211 is driven by the axle-holding cylinder 212 to rotate in opposite directions, so that the axle-holding arm 211 clamps the stern shaft 610, and the stern shaft 610 is fixed on the rear vehicle device 200, so that the structure is simple and the operation is easy.

Specifically, the two axle-holding arms 211 are rotationally connected with the first sliding table 221 and symmetrically arranged at two opposite sides of the first sliding table 221.

Specifically, a fixing base of the axle-holding cylinder 212 is fixed on the first sliding table 221, and an output end of the axle-holding cylinder 212 is connected with the axle-holding arm 211. Of course, the axle cylinders 212 may also be electric cylinders or other driving devices.

Specifically, referring to fig. 3, the inner sidewall of the axle arm 211 can be attached to the sidewall of the stern shaft 610. Further, the ends of the axle-holding arms 211 are provided with a plurality of through holes, and when the axle-holding arms 211 clamp the stern shaft 610, the ends of the two axle-holding arms 211 can be connected together by the cooperation of the screw-connection piece and the through holes, so as to further stabilize the fixing of the clamp mechanism 210 to the stern shaft 610.

In this embodiment, the first moving mechanism includes a plurality of first traveling members 241 disposed at the bottom of the first base 231, and the first traveling members 241 include first traveling wheels 2411 in rolling connection with the track 100 and a first driving motor 2412 for driving the first traveling wheels 2411 to rotate. In the present embodiment, the first driving motor 2412 drives the first traveling wheel 2411 to rotate to move the rear vehicle apparatus 200 on the track 100.

Further, the first moving mechanism further includes a hoist 242, and the hoist 242 is provided on the first base 231. In the present embodiment, the extended end of the wire rope of the hoist 242 is fixed to the fixing member 640, the hoist 242 is started, and the wire rope of the hoist 242 is recovered to assist the rear car apparatus 200 to move toward the shaft hole.

In this embodiment, a plurality of first foot lifting cylinders 270 are further disposed at the bottom of the first base 231. In this embodiment, the foot lifting member connected to the output end of the first foot lifting cylinder 270 can contact with the ground to enable the rear vehicle device 200 to park, and enable the rear vehicle device 200 to park stably and reliably.

In this embodiment, the first base 231 is further provided with a first hydraulic system 281 and a first operation box 282, and the first lift cylinder 233, the first horizontal cylinder 222, the axle suspension cylinder 212 and the first foot lifting cylinder 270 are all connected with the first hydraulic system 281 through oil paths, and a controller in the first operation box 282 is electrically connected with the first hydraulic system 281 and controls the first hydraulic system 281 through the first operation box 282, so that the first lift cylinder 233, the first horizontal cylinder 222, the axle suspension cylinder 212 and the first foot lifting cylinder 270 work.

Further, the first driving motor 2412 and the hoist 242 are electrically connected to a controller in the first operation box 282, and the controller in the first operation box 282 can control the first driving motor 2412 and the hoist 242 to operate.

Further, a display screen 283 is provided on the first base 231, the display screen 283 is electrically connected with the controller in the first operation box 282, and the display screen 283 can input the related parameters of the shaft hole and the stern shaft 610, such as height, diameter, angle, etc.

In this embodiment, as shown in fig. 7 to 8, the second lifting mechanism 330 includes a second base 331 and a second platform 332, a second lifting cylinder 333 and a second guiding component 334 are disposed between the second base 331 and the second platform 332, and the second lifting cylinder 333 can drive the second platform 332 to move along the second guiding component 334, and the second platform 332 is provided with the second translation mechanism 320. In this embodiment, the second guide assembly 334 stabilizes the movement of the second platform 332.

Specifically, the fixing base of the second lifting cylinder 333 is fixed on the second base 331, and the output end of the second lifting cylinder 333 is connected to the second platform 332. Of course, the second lift cylinder 333 may also be an electric cylinder or other driving device.

Specifically, the second guide assembly 334 includes a second guide sleeve 3341 and a second guide sleeve 3342 sleeved in the second guide sliding sleeve, the second guide sleeve 3341 is slidably connected with the second guide sleeve 3342, one end of the second guide sliding sleeve facing the second base 331 is fixed on the second base 331 and extends along the vertical direction, and one end of the second guide sleeve 3342 facing the second platform 332 is fixed on the second platform 332 and extends along the vertical direction. Further, the second jack cylinder 333 is disposed in the second guide sliding sleeve and the second guide shaft sleeve 3342.

Further, the second guide assembly 334 and the second lift cylinder 333 are each provided in plurality. Preferably, the second guide assembly 334 and the second lift cylinder 333 are both provided with two.

Further, the second platform 332 is further provided with a second guard rail 3321, and the second guard rail 3321 can effectively ensure personal safety of staff. Further, a second clamping member is detachably disposed between the second guard rail 3321 and the second platform 332, when the second clamping member is installed, the second guard rail 3321 is fixed on the second platform 332, and when the second clamping member is detached, the second guard rail 3321 can rotate around the second platform 332 to put down the second guard rail 3321 so as to prevent interference.

Further, the second base 331 and the second platform 332 are both provided with a second ladder stand 360, so that the staff can conveniently reach the second platform 332.

In this embodiment, a second fall protection component 350 is further disposed between the second base 331 and the second platform 332, and the second fall protection component 350 can prevent the second platform 332 from falling toward the second base 331. Specifically, the second anti-falling component 350 includes a second sleeve 351, a second screw 352 inserted in the second sleeve 351, and a second hand-screw nut 353 screwed with the second screw 352, wherein the second sleeve 351 is fixed on the second base 331 toward one end of the second base 331 and extends in the vertical direction, and the second screw 352 is fixed on the second platform 332 toward one end of the second platform 332 and extends in the vertical direction. In this embodiment, after the second lifting cylinder 333 drives the second platform 332 to move away from the second base 331 by a certain distance, the second hand-screwed nut 353 is screwed to make the second hand-screwed nut 353 abut against the second sleeve 351, so as to prevent the second platform 332 from falling down caused by falling back of the output end of the cylinder.

In this embodiment, the second translation mechanism 320 includes a second sliding table 321 slidably connected to the second lifting mechanism 330, and a second horizontal cylinder 322 disposed between the second lifting mechanism 330 and the second sliding table 321, where the second horizontal cylinder 322 can drive the second sliding table 321 to move, and the second sliding table 321 is provided with a supporting roller 310. In the embodiment, the second sliding table 321 is driven to move by the second horizontal oil cylinder 322, so that the structure is simple and the operation is easy.

Specifically, the middle of the backing roller 310 is recessed into an arc-shaped groove, and the stern shaft 610 can be placed in the arc-shaped groove of the backing roller 310. Further, the riding roller 310 is rotatably connected with the second sliding table 321, so that the feeding shaft is convenient.

Specifically, the second sliding table 321 is disposed on the second platform 332 and is slidably connected to the second platform 332. Further, the second sliding table 321 may be slidably connected to the second platform 332 through a sliding bearing mechanism, or may be slidably connected to the second platform 332 through a sliding rail and sliding mechanism or other sliding mechanisms, which is not limited herein.

Specifically, the fixing base of the second horizontal cylinder 322 is fixed on the second platform 332, and the output end of the second horizontal cylinder 322 is connected with the second sliding table 321. Of course, the second horizontal cylinder 322 may also be an electric cylinder or other driving device.

In the present embodiment, the second moving mechanism includes a plurality of second traveling assemblies 340 disposed at the bottom of the second base 331, and the second traveling assemblies 340 include second traveling wheels 341 in rolling connection with the rail 100 and a second driving motor 342 for driving the second traveling wheels 341 to rotate. In the present embodiment, the second driving motor 342 drives the second travelling wheel 341 to rotate so as to move the front vehicle device 300 on the track 100.

In this embodiment, a plurality of second foot lifting cylinders 370 are further disposed at the bottom of the second base 331. In this embodiment, the foot lifting member connected to the output end of the second foot lifting cylinder 370 can contact with the ground to enable the front vehicle device 300 to park, and enable the front vehicle device 300 to park stably and reliably.

In this embodiment, a second hydraulic system 381 and a second operation box 382 are further disposed on the second base 331, the second lift cylinder 333, the second horizontal cylinder 322 and the second foot lifting cylinder 370 are all connected with the second hydraulic system 381 through oil paths, a controller in the second operation box 382 is electrically connected with the second hydraulic system 381, and the second hydraulic system 381 is controlled through the second operation box 382, so that the second lift cylinder 333, the second horizontal cylinder 322 and the second foot lifting cylinder 370 work.

Further, the second driving motor 342 is electrically connected to a controller in the second operation box 382, and the controller in the second operation box 382 can control the second driving motor 342 to work.

Further, the controller in the first operation box 282 and the controller in the second operation box 382 are electrically connected to each other to realize a single or overall control motion operation.

In this embodiment, as shown in fig. 1, the stern shaft inlet device further includes a wireless transmitter 520, and the laser rangefinder 510 and the display screen 283 are both connected with the wireless transmitter 520, and the wireless transmitter 520 can be installed outside the first shaft hole 620. In this embodiment, the position information sent by the laser rangefinder 510 and received by the wireless transmitter 520 is sent to the controller in the first operation box 282, the controller in the first operation box 282 can send the position information to the controller and the display screen 283 shared in the second operation box 382, the display screen 283 can display the position information of the first axle hole 620, the position information of the stern axle 610, the shaft information of the stern axle 610, and the like, and the controller in the first operation box 282 controls the first hydraulic system 281 to enable the first jack-up cylinder 233 and the first horizontal cylinder 222 to operate, and the controller in the second operation box 382 controls the second hydraulic system 381 to enable the second jack-up cylinder 333 and the second horizontal cylinder 322 to operate to adjust the position of the stern axle 610.

Preferably, the laser rangefinder 510 is provided with four and is arranged around the first axle hole 620 at intervals, the laser rangefinder 510 is arranged on the end face of the first axle hole 620, and the distance from the ranging point of the laser rangefinder 510 to the center of the axle hole is equal. Further, the laser rangefinder 510 is attached to the end surface of the first axle bore 620 with magnetic force energy.

Example two

As shown in fig. 9, an approach method of the stern shaft approach apparatus in the first embodiment may be used, and includes the steps of:

s100, hoisting the stern shaft 610 on the rear car device 200 and the front car devices 300, and fixing the stern shaft 610 by using the clamp mechanism 210.

Specifically, before step S100, the rail 100 is placed in correspondence to the shaft hole, and the rear vehicle device 200 and the plurality of front vehicle devices 300 are sequentially hoisted on the rail 100 by the gantry crane, and the connecting rod 400 is installed between the front vehicle device 300 adjacent to the rear vehicle device 200 and between the adjacent front vehicle devices 300, so that the rear vehicle device 200 and the plurality of front vehicle devices 300 are connected in series.

Further, in step S100, the stern shaft 610 is hoisted to the fixture mechanism 210 of the rear truck apparatus 200 and the supporting rollers 310 of the plurality of front truck apparatuses 300 by the gantry crane, and the first hydraulic system 281 is controlled by the first operation box 282 to drive the axle-holding arms 211 to rotate in opposite directions by the axle-holding cylinders 212 so that the axle-holding arms 211 clamp the stern shaft 610, thereby ensuring that the stern shaft 610 cannot rotate and move back and forth.

Further, the extended end of the wire rope of the hoist 242 is fixed to the fixing member 640.

S200, according to the position information of the distance meter 510, which is used for detecting the position of the stern shaft 610 relative to the first axle hole 620, the position of the stern shaft 610 is adjusted by the first translation mechanism 220, the first lifting mechanism 230, the second translation mechanism 320 and the second lifting mechanism 330, so that the stern shaft 610 is coaxial with the first axle hole 620.

Specifically, before step S200, the wireless transmitter 520 is installed outside the first shaft hole 620, and four laser rangefinders 510 are disposed on the end surface of the first shaft hole 620, so as to ensure that the distance between the ranging points of the laser rangefinder 510 and the center of the shaft hole is equal, and meanwhile, relevant parameters of the shaft hole and the stern shaft 610 are input on the display screen 283.

Further, in step S100, the position information sent by the laser rangefinder 510 and received by the wireless transmitter 520 is sent to the controller in the first operation box 282, the controller in the first operation box 282 sends and shares the received position information to the display screen 283, the display screen 283 can display the position information of the first shaft hole 620 and the position information of the stern shaft 610, the controller in the first operation box 282 receives the related parameters of the shaft hole and the stern shaft 610 input in the display screen 283 to calculate the stern shaft 610 and shaft information, and the operator can observe the position information of the first shaft hole 620, the position information of the stern shaft 610, the stern shaft 610 and the shaft information through the display screen 283.

Further, since the controller in the first operation box 282 and the controller in the second operation box 382 are electrically connected to each other, the controller in the first operation box 282 can send and share the received position information to the controller in the second operation box 382, the first hydraulic system 281 is controlled by the controller in the first operation box 282 to operate the first lift cylinder 233 and the first horizontal cylinder 222, and the second hydraulic system 381 is controlled by the controller in the second operation box 382 to operate the second lift cylinder 333 and the second horizontal cylinder 322 to adjust the position of the stern shaft 610.

Specifically, when the stern shaft 610 deviates from the first axle hole 620 in the horizontal direction, the controller in the first operation box 282 controls the first hydraulic system 281 to operate the first horizontal cylinder 222, the first horizontal cylinder 222 on the rear truck apparatus 200 drives the first sliding table 221 to move in the horizontal direction, the first sliding table 221 drives the clamp mechanism 210 to move in the horizontal direction, and simultaneously, the second horizontal cylinder 322 on each front truck apparatus 300 drives the second sliding table 321 to move in the horizontal direction, the second sliding table 321 drives the supporting roller 310 to move in the horizontal direction, and the stern shaft 610 is further moved in the horizontal direction, so that the stern shaft 610 is aligned with the first axle hole 620 in the horizontal direction.

Specifically, when the stern shaft 610 deviates from the first axle hole 620 in the vertical direction, the controller in the first operation box 282 controls the first hydraulic system 281, so that the first lift cylinder 233 on the rear truck apparatus 200 drives the first platform 232 to move in the vertical direction, the first platform 232 drives the first translation mechanism 220 to move in the vertical direction, and further, the clamp mechanism 210 on the first sliding table 221 of the first translation mechanism 220 moves in the vertical direction, and simultaneously, the controller in the second operation box 382 on each front truck apparatus 300 controls the second hydraulic system 381, so that the second lift cylinder 333 drives the second platform 332 to move in the vertical direction, the second platform 332 drives the second translation mechanism 320 to move in the vertical direction, and further, the supporting roller 310 on the second sliding table 321 of the second translation mechanism 320 moves in the vertical direction, so that the stern shaft 610 is aligned with the first axle hole 620 in the vertical direction.

S300, the rear car device 200 is driven to move on the rail 100 through the first moving mechanism, the front car device 300 is driven to move on the rail 100 through the second moving mechanism, and the stern shaft 610 is synchronously lifted through the first lifting mechanism 230 and the second lifting mechanism 330, so that the stern shaft 610 is coaxial with the ship shaft hole.

Specifically, in the rear car apparatus 200, a worker starts the first driving motor 2412 by the controller in the first operation box 282 to rotate the first travelling wheel 2411 to move the rear car apparatus 200 on the rail 100 toward the shaft hole, and starts the hoist 242 by the controller in the first operation box 282 to assist the rear car apparatus 200 to move toward the shaft hole; meanwhile, on each front car device 300, the controller in the first operation box 282 sends an instruction to the controller in the second operation box 382, so that the controller in the second operation box 382 starts the second driving motor 342 to rotate the second travelling wheel 341 to move the front car device 300 on the rail 100 toward the axle hole.

Specifically, while the rear car apparatus 200 and the plurality of front car apparatuses 300 are moving on the rail 100 toward the shaft hole, the controller in the first operation box 282 on the rear car apparatus 200 controls the first hydraulic system 281 to cause the first elevating mechanism 230 to elevate the stern shaft 610, and the controller in the second operation box 382 on each front car apparatus 300 controls the second hydraulic system 381 to cause the second elevating mechanism 330 to elevate the stern shaft 610 to cause the stern shaft 610 to be always coaxial with the shaft hole. During this time, the operator can observe the position information of the first shaft hole 620, the position information of the stern shaft 610, the shaft of the stern shaft 610, and the like through the display screen 283.

And S400, after the stern shaft 610 passes through the first shaft hole 620 for a certain distance, sequentially removing all the connecting rods 400 from the connecting rod 400 towards one end part of the first shaft hole 620, moving the separated front truck device 300 between the first shaft hole 620 and the second shaft hole 630, and continuously supporting the stern shaft 610, wherein each removing of one connecting rod 400 moves the stern shaft 610 forwards for a certain distance until the stern shaft 610 is inserted into the second shaft hole 630.

When the front vehicle device 300 is provided with two, specifically, the step S400 specifically includes the steps of:

s410, when the first front truck apparatus 300 approaches the first axle hole 620, the first connecting rod 400 is removed, and the first front truck apparatus 300 is moved between the first axle hole 620 and the second axle hole 630 to continue to support the stern shaft 610.

Specifically, when the first front car device 300 approaches the first shaft hole 620, the first connecting rod 400 is removed, the second operation box 382 on the first front car device 300 controls the second hydraulic system 381, and first, the second lifting mechanism 330 drives the supporting roller 310 to descend, then, the second moving mechanism drives the first front car device 300 to move between the first shaft hole 620 and the second shaft hole 630, and finally, the second lifting mechanism 330 drives the supporting roller 310 to ascend to continuously support the stern shaft 610, so as to ensure stability in the process of entering the shaft.

Further, before the first front truck apparatus 300 moves, the second rail 3321 of the first front truck apparatus 300 is laid down to prevent collision.

Further, after the first front vehicle device 300 moves between the first axle hole 620 and the second axle hole 630, the second operation box 382 on the first front vehicle device 300 controls the second hydraulic system 381 to make the second foot lift cylinder 370 contact with the ground, so as to stabilize the first front vehicle device 300.

S420, when the second front truck apparatus 300 approaches the first axle hole 620, the second connecting rod 400 is removed, and the second front truck apparatus 300 is moved between the first axle hole 620 and the second axle hole 630 to continue to support the stern shaft 610.

Specifically, when the second front car device 300 approaches the first shaft hole 620, the second connecting rod 400 is removed, the second operation box 382 on the second front car device 300 controls the second hydraulic system 381, and first, the second lifting mechanism 330 drives the supporting roller 310 to descend, then, the second moving mechanism drives the second front car device 300 to move between the first shaft hole 620 and the second shaft hole 630, and finally, the second lifting mechanism 330 drives the supporting roller 310 to ascend to continuously support the stern shaft 610, so as to ensure stability in the process of entering the shaft.

Further, before the second front vehicle device 300 moves, the second guard rail 3321 of the second front vehicle device 300 is laid down to prevent collision.

Further, after the second front vehicle device 300 moves between the first axle hole 620 and the second axle hole 630, the second operation box 382 on the second front vehicle device 300 controls the second hydraulic system 381 to make the second foot lifting cylinder 370 contact with the ground, so as to stabilize the second front vehicle device 300.

Further, before step S420 or after the second front truck apparatus 300 is moved to the first shaft hole 620 and the second shaft hole 630 to continue to support the stern shaft 610, the first front truck apparatus 300 may be moved further toward the second shaft hole 630 by a distance such that the center of gravity of the stern shaft 610 is between the first front truck apparatus 300 and the rear truck apparatus 200, stabilizing the entire process of advancing the stern shaft 610, preventing the stern shaft 610 from tipping over to generate friction with the first shaft hole 620, and damaging the first shaft hole 620 and the stern shaft 610.

S430, the rear truck apparatus 200 continues to move toward the first axle hole 620 to insert the stern shaft 610 into the second axle hole 630.

Specifically, the controller in the first operation box 282 on the rear vehicle device 200 controls the first driving motor 2412 to drive the first travelling wheel 2411 to rotate, and the rear vehicle device 200 is moved towards the axle hole on the rail 100 by the action of the winch 242; meanwhile, the controller in the first operation box 282 on the rear car device 200 controls the first hydraulic system 281, so that the first jacking cylinder 233 on the rear car device 200 drives the first platform 232 to move in the vertical direction, the first platform 232 drives the first translation mechanism 220 to move in the vertical direction, and then the clamp mechanism 210 on the first sliding table 221 of the first translation mechanism 220 moves in the vertical direction, so that the first shaft hole 620 and the stern shaft 610 are coaxial until the stern shaft 610 is inserted into the second shaft hole 630, and the stern shaft 610 is completed.

When the front vehicle device 300 is provided with a plurality of front vehicle devices, the approach method is similar to the above method, and will not be described in detail herein.

In this embodiment, the method of using the stern shaft feeding device to complete the feeding of the stern shaft 610 is simple in operation process, can effectively ensure stability and precision in the process of feeding the stern shaft 610, saves manpower and material resources, and reduces the time consumed for feeding the stern shaft 610.

It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims

1. A stern shaft feed apparatus comprising:

the rail (100), the rail (100) extends along a first direction, a rear vehicle device (200) and a plurality of front vehicle devices (300) are sequentially arranged on the rail (100), connecting rods (400) are arranged between the front vehicle devices (300) adjacent to the rear vehicle device (200) and between the front vehicle devices (300) adjacent to the rear vehicle device, the connecting rods (400) are rigid connection connecting rods, and the rear vehicle device (200) and the front vehicle device (300) can move along the extending direction of the rail (100); wherein, the liquid crystal display device comprises a liquid crystal display device,

The rear car device (200) is provided with a clamp mechanism (210), a first translation mechanism (220), a first jacking mechanism (230) and a first moving mechanism, the clamp mechanism (210) can fix a stern shaft (610), the first translation mechanism (220) can drive the clamp mechanism (210) to move along a second direction, the first jacking mechanism (230) can lift the clamp mechanism (210), and the first moving mechanism can drive the rear car device (200) to move on the rail (100);

the first jacking mechanism (230) comprises a first base (231) and a first platform (232);

the first translation mechanism (220) comprises a first sliding table (221) which is in sliding connection with the first jacking mechanism (230);

the front vehicle device (300) is provided with a supporting roller (310), a second translation mechanism (320), a second jacking mechanism (330) and a second moving mechanism, the supporting roller (310) can support the stern shaft (610), the second translation mechanism (320) can drive the supporting roller (310) to move along the second direction, the second jacking mechanism (330) can lift the supporting roller (310), and the second moving mechanism can drive the front vehicle device (300) to move on the rail (100);

a range finder (510), the range finder (510) being provided with a plurality of range finders and being fixable to a first shaft hole (620), the range finder (510) being adapted to detect a position of the stern shaft (610) relative to the first shaft hole (620);

The clamp mechanism (210) comprises two axle-holding arms (211) which are rotationally connected with the first translation mechanism (220), axle-holding oil cylinders (212) are arranged between the two axle-holding arms (211) and the first translation mechanism (220), and the axle-holding oil cylinders (212) can drive the axle-holding arms (211) to clamp the stern shaft (610); the two axle-holding arms (211) are rotationally connected with the first sliding table (221) and symmetrically arranged on two opposite sides of the first sliding table (221); the end parts of the axle-holding arms (211) are provided with a plurality of through holes, and when the axle-holding arms (211) clamp the stern shaft (610), the end parts of the two axle-holding arms (211) can be connected together through the cooperation of a screw-connection piece and the through holes;

the first moving mechanism comprises a winch (242), the winch (242) is arranged on the first base (231), the extending end of a steel cable of the winch (242) is fixed on a fixing piece (640), the winch (242) is started, and the steel cable of the winch (242) is recovered to assist the rear car device (200) to move towards a ship shaft hole.

2. The stern shaft inlet device according to claim 1, wherein a first jacking cylinder (233) and a first guiding assembly (234) are arranged between the first base (231) and the first platform (232), the first jacking cylinder (233) can drive the first platform (232) to move along the first guiding assembly (234), and the first translation mechanism (220) is arranged on the first platform (232).

3. The stern shaft inlet device according to claim 2, characterized in that a first fall prevention assembly (250) is further arranged between the first base (231) and the first platform (232), and the first fall prevention assembly (250) can prevent the first platform (232) from falling towards the first base (231).

4. The stern shaft inlet device according to claim 1, wherein the first translation mechanism (220) further comprises a first horizontal cylinder (222) arranged between the first lifting mechanism (230) and the first sliding table (221), the first horizontal cylinder (222) can drive the first sliding table (221) to move, and the clamp mechanism (210) is arranged on the first sliding table (221).

5. The stern shaft inlet device according to claim 1, wherein the second jacking mechanism (330) comprises a second base (331) and a second platform (332), a second jacking cylinder (333) and a second guiding component (334) are arranged between the second base (331) and the second platform (332), the second jacking cylinder (333) can drive the second platform (332) to move along the second guiding component (334), and the second platform (332) is provided with the second translating mechanism (320).

6. The stern shaft inlet device according to claim 5, characterized in that a second fall prevention assembly (350) is further arranged between the second base (331) and the second platform (332), and the second fall prevention assembly (350) can prevent the second platform (332) from falling towards the second base (331).

7. The stern shaft inlet device according to claim 1, wherein the second translation mechanism (320) comprises a second sliding table (321) slidably connected with the second jacking mechanism (330) and a second horizontal cylinder (322) arranged between the second jacking mechanism (330) and the second sliding table (321), the second horizontal cylinder (322) can drive the second sliding table (321) to move, and the second sliding table (321) is provided with the supporting roller (310).

8. A method of using the stern shaft approach as claimed in any of claims 1 to 7, characterised by comprising the steps of:

s100, hoisting the stern shaft (610) on the rear vehicle device (200) and a plurality of front vehicle devices (300), and fixing the stern shaft (610) by using the clamp mechanism (210);

s200, detecting the position information of the stern shaft (610) relative to the first ship shaft hole (620) according to the range finder (510), and adjusting the position of the stern shaft (610) through the first translation mechanism (220), the first jacking mechanism (230), the second translation mechanism (320) and the second jacking mechanism (330) so that the stern shaft (610) is coaxial with the first ship shaft hole (620);

s300, driving the rear car device (200) to move on the rail (100) through the first moving mechanism, driving the front car device (300) to move on the rail (100) through the second moving mechanism, and synchronously lifting the stern shaft (610) through the first jacking mechanism (230) and the second jacking mechanism (330) to enable the stern shaft (610) to be coaxial with the ship shaft hole;

S400, after the stern shaft (610) passes through the first shaft hole (620) for a certain distance, all the connecting rods (400) are removed from the connecting rods (400) towards one end of the first shaft hole (620), the separated front car device (300) is moved to a position between the first shaft hole (620) and the second shaft hole (630), the stern shaft (610) is continuously supported, and each connecting rod (400) is removed, the stern shaft (610) is moved forwards for a certain distance until the stern shaft (610) is inserted into the second shaft hole (630).

9. The approach as recited in claim 8, wherein when two of said lead devices (300) are provided, step S400 specifically includes the steps of:

s410, when a first front truck device (300) approaches to the first ship shaft hole (620), removing the first connecting rod (400), and moving the first front truck device (300) between the first ship shaft hole (620) and the second ship shaft hole (630) to continuously support the stern shaft (610);

s420, when a second front truck device (300) approaches to the first ship shaft hole (620), removing the second connecting rod (400), and moving the second front truck device (300) to a position between the first ship shaft hole (620) and the second ship shaft hole (630) to continuously support the stern shaft (610);

S430, the rear car device (200) continues to move towards the first ship shaft hole (620) so as to enable the stern shaft (610) to be inserted into the second ship shaft hole (630).