CN105966549B - A kind of screw shaft of ship mounting device - Google Patents

Abstract

A kind of screw shaft of ship mounting device has supporting trolley and guiding trolley to be respectively arranged at tail end and the front end of stern tube shaft, drives stern tube shaft to install the propeller shaft bracket to ship one by one by two trolleies.By the screw shaft of ship mounting device, the installation of stern tube shaft can be conveniently and efficiently completed, considerably reduces the use needs of bottle gouard moved by hands, heavy duty transporter is not needed yet and is assisted, can both reduce installation difficulty, also greatly improve working efficiency.

Description

A ship stern shaft installation device

technical field

The invention relates to auxiliary installation equipment for ships, in particular to a device for auxiliary installation of ship stern shafts.

Background technique

The stern shaft is also known as the "stern shaft", which is an important device installed at the bottom of the ship. One end is connected to the propeller, and the other end is connected to the gearbox or coupling and then connected to the engine. The engine drives the propeller to rotate through the stern shaft to drive the ship to sail. . In large ships, the stern shaft generally reaches more than 50 tons, even more than 80 tons, and the length is more than 18 meters. The gap between the stern shaft and the shaft hole is generally about 0.05~0.07mm. With such a weight but small precision requirements, the installation of the stern shaft is extremely difficult.

The existing stern shaft installation methods generally use chain hoists for the whole process and rely on manual installation work. On the one hand, this requires a large number of workers and takes many days to complete the installation of a stern shaft, resulting in The labor cost is high and the work efficiency is low; on the other hand, in order to complete the installation of the stern shaft, multiple hand chain hoists need to be used, and the use of these hand chain hoists must weld a large number of hanging codes on the hull, which greatly increases the welding time. 1. The workload of dismantling the hanging code and subsequent paint repairs. If improper operation occurs, it may even affect the safety performance of the ship.

Another installation method is to use a heavy-duty flatbed truck to assist the chain hoist to carry out operations. Although this can reduce the difficulty of operation to a certain extent, it takes up the resources of the heavy-duty flatbed truck and increases the cost of equipment. Moreover, the operability of the heavy-duty flatbed truck Extremely low and not well suited for thru-shaft work with low-clearance shaft holes.

Contents of the invention

The invention aims to provide a device for assisting in the installation of a ship's stern shaft, so as to reduce installation difficulty and improve work efficiency.

The ship stern shaft installation device according to the present invention includes a supporting trolley supporting the tail end of the stern shaft, and a guiding trolley guiding the front end of the stern shaft; both the supporting trolley and the guiding trolley are provided with a car base, and a liftable The bottom of the car base is equipped with a wheel assembly that drives the car base to move; the top of the jacking assembly that supports the trolley is equipped with a clamp assembly that clamps and fixes the stern shaft, and the top of the jacking assembly that guides the trolley is installed with a The roller assembly supporting the stern shaft; in addition, the horizontal adjustment assembly for adjusting the horizontal position of the clamp assembly and the roller assembly is respectively installed on the car base of the support trolley and the guide trolley.

In the ship stern shaft installation device of the present invention, the jacking assembly of the supporting trolley and the guiding trolley raises and fixes the fixture assembly and the roller assembly respectively, and then places the tail end and the front end of the stern shaft on the supporting trolley and the guiding trolley respectively. , the clamp assembly supporting the trolley clamps and fixes the tail end of the stern shaft, and the roller assembly on the top of the guide trolley provides rolling guidance; after the placement is completed, the wheel assembly assists the support trolley and the guide trolley to drive the stern shaft of the ship in the stern axis The installation frame moves. At this time, the height and center position of the support trolley and guide trolley can be adjusted through the jacking assembly and the lateral adjustment assembly to ensure that the stern shaft is aligned with the mounting hole of the stern shaft frame; then, the stern shaft is driven by the support trolley and the guide trolley The shaft passes through the stern bracket mounting hole, then the jacking assembly of the guide trolley is lowered and the roller assembly is off the stern shaft, and the guide trolley is moved to the other side of the stern axle, and the jacking assembly of the guide trolley rises again and allows The roller assembly supports the stern shaft again; thus enter the installation of the next stern shaft frame, until it passes through all the stern shaft frames, until the support trolley moves to the last stern shaft frame, and then the clamp assembly of the support trolley Unlock, and then send the stern shaft to the set position; the jacking assembly of the guide trolley descends, and the support trolley and guide trolley move back and leave the stern shaft to complete the installation work. Through the ship stern shaft installation device, the installation of the stern shaft can be completed conveniently and quickly, which greatly reduces the need for the use of manual hoists, and does not require heavy flatbed trucks for assistance, which can not only reduce the difficulty of installation, but also greatly improve work efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of a ship stern shaft installation device.

2-4 are structural schematic diagrams of the supporting trolley of the ship stern shaft installation device shown in FIG. 1 .

5 and 6 are structural schematic diagrams of the guide trolley of the ship stern shaft installation device shown in FIG. 1 .

7-12 are schematic diagrams of the installation process of the ship stern shaft installation device shown in FIG. 1 .

Detailed ways

A ship stern shaft installation device, comprising a supporting trolley 1 supporting the tail end of the stern shaft 100, and a guiding trolley 2 guiding the front end of the stern shaft; The bottom of the car base is installed with a wheel assembly that drives the car base to move; the top of the jacking assembly that supports the trolley is installed with a clamp assembly that clamps and fixes the stern shaft, and the top of the jacking assembly that guides the trolley is installed. There is a roller assembly supporting the stern shaft; in addition, a lateral adjustment assembly for horizontally adjusting the clamp assembly and the roller assembly is respectively installed on the car base of the supporting trolley and the guiding trolley.

In the ship stern shaft installation device, the jacking assembly includes a jacking frame 41 that moves up and down along the vehicle base 3 and a jacking driver 42 that drives the jacking frame to move, and the top of the jacking frame is fixedly installed with a supporting fixture assembly or a roller The support frame 43 of the assembly, the top drive driver drives the support frame and the fixture assembly or roller assembly on it through the jacking frame; wherein, the top of the car base 3 has a square cavity inward, and the jacking frame is embedded in the car base The inside of the square cavity is a square that matches the vehicle base, as shown in Figure 4, the structural characteristics of the square can increase the structural strength of the device, making the work safer and more stable.

The wheel assembly includes a fixed track 51 and a wheel 52 moving along the track. Through the setting of the track, the heavy stern shaft will not be dislocated during the movement, thereby improving the installation accuracy; There is a lower base 61 and an upper base 62 with semi-arc grooves. The semi-arc grooves of the upper base and the lower base are respectively arranged downward and upward. Then it can be detachably installed on the lower base. During work, the upper base is removed first. After the stern shaft is placed on the lower base, the upper base is installed and locked, thereby fixing the tail end of the stern shaft.

The roller assembly includes a roller seat 71 which is laterally movable and installed on the jacking assembly, and a roller 72 which is rotatably installed on the roller seat. Axes work more accurately.

The lateral adjustment assembly includes an adjustment wheel 81 that is rotatably mounted on the bottom of the clip assembly or the roller assembly, and a retractable lateral driver 82. side, and its expansion and contraction direction is consistent with the rolling direction of the adjustment wheel; the lateral drive expands and contracts to push the fixture assembly or the roller assembly, and the clamp assembly or the roller assembly is driven by the adjustment wheel to move after being pushed by the transverse drive. Simple, easy to implement, and work stably and accurately. On the other two sides of the clip assembly or the roller assembly relative to the transverse drive 82, rollable spacer wheels 83 are respectively installed; through the setting of the spacer wheels, it can be ensured that the adjustment is more accurate.

The ship stern shaft installation device has a length-adjustable support rod 9, and the support rod is installed between the jacking assembly and the car base 3; after the stern shaft is placed on the support trolley and the guide trolley, the support trolley and the guide trolley The upper support rod is locked, thus playing the role of insurance support and increasing the safety of the equipment.

The guide trolley 2 is equipped with a locking assembly 10 that locks it at the current position. When the stern shaft reaches the front of the stern shaft frame, use the locking assembly of the guide trolley to lock it at the current position, and then start the support trolley to send the stern shaft into the stern shaft. The shaft frame, on the one hand, can make better use of the guiding ability of the guide trolley, making the shaft delivery work more accurate, and on the other hand, can avoid the collision between the guide trolley and the stern axle frame, which will cause position deviation or equipment damage.

A method for installing a ship stern shaft, comprising the following steps:

A. Move the stern shaft 100 to the set position, and place the tail end and front end of the stern shaft on the support trolley 1 and the guide trolley 2 respectively, and the clamp assembly of the support trolley clamps and fixes the tail end of the stern shaft; as shown in the figure as shown in 7;

B. The support trolley and the guide trolley move, and then drive the front end of the stern shaft to move to the stern shaft frame 101 at the end of the ship; as shown in Figure 8;

C. The supporting trolley and guiding trolley continue to move, so that the front end of the stern shaft passes through the stern shaft frame;

D. The jacking assembly of the guide trolley descends and the roller assembly leaves the stern shaft, then moves the guide trolley to the other side of the stern shaft frame, then the jacking assembly of the guide trolley rises again and the roller assembly supports the stern shaft again ; As shown in Figure 9;

E. The supporting trolley and the guiding trolley move again, driving the front end of the stern shaft to move to the next stern shaft bracket 102 of the ship; as shown in Figure 10;

F. Repeat steps C, D and E above until the stern shaft passes through all stern shaft brackets;

G. The support trolley and the guide trolley continue to move until the support trolley moves to the stern shaft frame at the end, then unlock the clamp assembly of the support trolley, and then send the stern shaft to the set position; as shown in Figure 11;

H. The jacking component of the guide trolley descends, and the support trolley and guide trolley move backward and leave the stern shaft to complete the installation work; as shown in Figure 12.

In the method for installing the stern shaft of a ship, in step A, after the stern shaft is placed on the support trolley and the guide trolley, the support rods on the support trolley and the guide trolley are locked, thus playing the role of insurance support; then adjust the support The height and center position of the trolley and guide trolley ensure the accuracy of subsequent shaft feeding work.

In step B, when the front end of the stern shaft moves to the last shaft bracket, first measure the gap between the holes of the stern shaft and the shaft bracket, adjust the height and center position of the supporting trolley and guide trolley if necessary, and then Proceed to step C to ensure the accuracy and safety of the shaft feeding work.

In step C, when the stern shaft reaches the front of the stern shaft frame, use the locking assembly of the guide trolley to lock it in the current position, and then start the support trolley to send the stern shaft into the stern shaft frame, this aspect can be better utilized The guiding ability of the guide trolley makes the shaft delivery work more accurate. On the other hand, it can avoid the collision between the guide trolley and the stern shaft frame, which will cause position deviation or equipment damage; when the stern shaft passes through the stern shaft frame for a certain distance, the support The trolley and guide trolley stop moving forward, lift the front end of the stern shaft with a manual hoist, and then proceed to step D, so as to ensure the accuracy of the shaft delivery.

In step G, after unlocking the jig assembly supporting the trolley, lift the tail end of the stern shaft first, and then use the manual hoist to pull the stern shaft to the set position. The operating distance of the manual hoist is extremely short, and the operation Simple.

Claims (10)

1. a kind of screw shaft of ship mounting device, it is characterised in that：Supporting trolley including supporting stern tube shaft tail end（1）, and to stern tube shaft The guiding trolley that front end is oriented to（2）；It is both provided with underbody seat on supporting trolley and guiding trolley（3）, install in underbody seat There are liftable jacking component, the bottom of underbody seat to be provided with the vehicle wheel component of motor-car pedestal movement；The jacking of supporting trolley The top of component is equipped with the fixture component for gripping stern tube shaft, and the top of the jacking component of guiding trolley is then equipped with support stern The roll wheel assembly of axis；In addition, being separately installed with to fixture component and roll wheel assembly in the underbody seat of supporting trolley and guiding trolley Carry out the lateral adjustments component of horizontal position adjustment.

2. screw shaft of ship mounting device according to claim 1, it is characterised in that：It includes along underbody seat to jack component（3） The jacking frame of lifting（41）With the jacking driver of driving jacking frame movement（42）, support card is installed at the top of jacking frame Has the supporting rack of component or roll wheel assembly（43）.

3. screw shaft of ship mounting device according to claim 2, it is characterised in that：Underbody seat（3）Top be inwardly provided with Square cavity, jacking frame are embedded in the square cavity of underbody seat and rectangular to match with underbody seat.

4. screw shaft of ship mounting device according to claim 1, it is characterised in that：Vehicle wheel component includes the rail being fixedly mounted Road（51）, and the wheel that is moved along track（52）.

5. screw shaft of ship mounting device according to claim 1, it is characterised in that：Fixture component includes being respectively equipped with half arc The lower bottom base of connected in star（61）And upper bed-plate（62）, half arc groove of upper bed-plate and lower bottom base separately down and opposite upwards sets It sets, lower bottom base can be mounted on to transverse shifting the top of jacking component, and upper bed-plate is then dismantledly installed on lower bottom base.

6. screw shaft of ship mounting device according to claim 1, it is characterised in that：Roll wheel assembly includes can transverse shifting Roller mount on jacking component（71）, and the rollably idler wheel in roller mount（72）.

7. screw shaft of ship mounting device according to claim 1, it is characterised in that：Lateral adjustments component includes rollably Regulating wheel mounted on the bottom of fixture component or roll wheel assembly（81）And telescopic traverse driver（82）, two transverse directions Driver is respectively arranged on jacking component, the both sides of fixture component or roll wheel assembly, and the rolling of its telescopic direction and regulating wheel Dynamic direction is consistent.

8. screw shaft of ship mounting device according to claim 7, it is characterised in that：It is opposite on fixture component or roll wheel assembly Traverse driver（82）Other both sides, be respectively provided with rotatable position-limited wheel（83）.

9. screw shaft of ship mounting device according to claim 1, it is characterised in that：There is length-adjustable supporting rod（9）, branch Strut setting is installed on jacking component and underbody seat（3）Between.

10. screw shaft of ship mounting device according to claim 1, it is characterised in that：Guiding trolley（2）Upper be equipped with is locked It is scheduled on the locked component of current location（10）.