CN201516919U

CN201516919U - Propeller shafting system locked shaft device

Info

Publication number: CN201516919U
Application number: CN2009202297125U
Authority: CN
Inventors: 邱晓峰; 梁振聪; 李磊; 程涛
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2009-11-10
Filing date: 2009-11-10
Publication date: 2010-06-30
Anticipated expiration: 2019-11-10

Abstract

A propeller shafting system locked shaft device, belonging to the locking device of a ship propeller shafting system, comprises a base (1) and a brake stopper (3), wherein one end of the brake stopper (3) is provided with a locking head (31) capable of being inserted into a connection bolt pair (2) of a propeller shafting system flange (5) and another end is provided with a rod handle (32) and the middle of the brake stopper (3) is hinged on the base (1) and the locking head (31) is towards the outer side of the base (1) and the rod handle (32) is connected with the base (1) by a bolt (7). The brake stopper is clipped between the two connection bolt pairs to lock the propeller shafting system and the propeller shafting system locked shaft device has features of simple structure, compactness, greatly reduced manufacture cost, convenient installation and maintenance, firm locking of the shafting system, high reliability and good safety.

Description

A kind of propeller shafting lock shaft device

Technical field

The utility model relates to the blocking device that a kind of unit of axle of ship propellor is, is a kind of propeller shafting lock shaft device specifically.

Background technology

During marine main engine shutdown or maintenance; the blade of tuning for Controllable Pitch Propeller has turned to zero pitch position, drives the rotation of axle system in order to prevent screw propeller under the effect of current, need fasten generally that to be provided with spool be lock shaft device at axle; make propeller shafting keep static, with protection gear case and main frame.In the application scenario of reality, a large amount of lock shaft devices that use mainly contain disc type lock shaft device and pin formula lock shaft device at present.

The disc type lock shaft device is fastened the bigger brake disc of setting at axle, holds brake disc tightly by brake band, thus the locking propeller shafting.But this apparatus structure relative complex, the space that accounts for is bigger, and cost is also higher, generally also is difficult to lock with the axle system of spacing oar as propelling unit.

Pin formula lock shaft device, fasten the bigger brake disc of setting at axle, be processed with some pin-and-holes at circumferencial direction on the dish, when lock shaft is, banking pin inserted in certain pin-and-hole on the brake disc, thereby with the locking of axle system, the lock shaft device of this pattern also needs to design bigger brake disc, and the space that accounts for is bigger, and installation and use are also relatively more difficult.

Summary of the invention

The purpose of this utility model is big at existing lock shaft device volume, makes and install the defective and the deficiency of complexity, and propeller shafting lock shaft device a kind of simple in structure, easy to operate, safe and reliable is provided.

For achieving the above object, technical solution of the present utility model is: a kind of propeller shafting lock shaft device, comprise a bearing and a stopper tab, one end of stopper tab is provided with the tapered end between the tie bolt pair that can insert the propeller shafting flange, the other end is the bar handle, the middle part of stopper tab is hinged on the bearing, and described tapered end is towards the bearing outside, and described bar handle is connected with bearing through latch.

Described stopper tab is angular pole always, and described tapered end is arranged on the outside of right angle bar minor face, and described bar handle is the long limit of right angle bar, and the rotation angle position of right angle bar is hinged on the bearing.

Described bearing is provided with left socle and right support, stopper tab through hinge and left socle is hinged and tapered end towards the outside of left socle, the bar handle of stopper tab is provided with pin-and-hole, pin-and-hole on the described right support on the corresponding bar handle is provided with two knock holees, and described latch can be in the arbitrary knock hole of the corresponding insertion of pin-and-hole.

Described tapered end is a taper type, and the width of frustum major part is less than or equal to the space between the two tie bolt pairs on the propeller shafting flange.

Corresponding bar handle is provided with travel switch on the described bearing, and the moving contact of travel switch points to the bar handle.

Compared with prior art, the beneficial effects of the utility model are:

1. the utility model utilizes the articulation tie bolt at propeller shafting flange place to fix axle system, promptly adopt stopper tab to snap in the locking that two modes between the tie bolt pair realize propeller shafting, this axle is that latching device is compared with in the past disc type lock shaft device and pin formula lock shaft device, simple in structure, volume is little, and manufacturing cost greatly reduces, and is easy to installation and maintenance, locking to axle system is firm, the reliability height.

2. the utility model utilizes travel switch to guarantee only when the tapered end of stopper tab is thrown off tie bolt fully, travel switch is braked block to be run into, and send to control system under the prerequisite of braking ring off signal, main frame could be started, having prevented effectively that stopper tab from throwing off fully just starts main frame, avoided the generation of accident, safety is good.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Structural representation when Fig. 2 is the utility model locking propeller shafting;

Structural representation when Fig. 3 is the utility model release propeller shafting.

Among the figure: bearing 1, left socle 11, right support 12, knock hole 13, tie bolt pair 2, stopper tab 3, tapered end 31, bar handle 32, travel switch 4, propeller shafting flange 5, hinge 6, latch 7.

The specific embodiment

Below in conjunction with the description of drawings and the specific embodiment the utility model is described in further detail:

Referring to Fig. 1, a kind of propeller shafting lock shaft device of the present utility model, comprise a bearing 1 and a stopper tab 3, one end of stopper tab 3 is provided with the tapered end 31 between the tie bolt pair 2 that can insert propeller shafting flange 5, the other end is a bar handle 32, the middle part of stopper tab 3 is hinged on the bearing 1, and described tapered end 31 is towards bearing 1 outside, and described bar handle 32 is connected with bearing 1 through latch 7.

Among Fig. 1, described stopper tab 3 is angular pole always, and described tapered end 31 is arranged on the outside of right angle bar minor face, and described bar handle 32 is the long limit of right angle bar, and the rotation angle position of right angle bar is hinged on the bearing 1.

Described tapered end 31 is a taper type, and the width of frustum major part is less than or equal to the space between the two tie bolt pairs 2 on the propeller shafting flange 5.

Described bearing 1 is provided with left socle 11 and right support 12, stopper tab 3 through hinge 6 and left socle 11 hinged and tapered end 31 towards the outside of left socle 11, stopper tab 3 can be rotated around hinge 6, the bar handle 32 of stopper tab 3 is provided with pin-and-hole, pin-and-hole on the described right support 12 on the corresponding bar handle 32 is provided with two knock holees 13, and described latch 7 can be in the arbitrary knock hole 13 of the corresponding insertion of pin-and-hole.The position of right support 12 top knock holees 13 wherein should be inserted between two tie bolt pairs 2 and when locking propeller shafting flange 5, the position of pin-and-hole is provided with on the corresponding bar handle 32 according to tapered end 31.The position of right support 12 below knock holees 13 should be according to tapered end 31 during away from propeller shafting flange 5, and the position of pin-and-hole is provided with on the corresponding bar handle 32.

Corresponding bar handle 32 is provided with travel switch 4 on the described bearing 1, and the moving contact of travel switch 4 points to bar handle 32, to receive the position signal of bar handle 32.

During use, the utility model correspondence is placed on the radial periphery position of propeller shafting flange 5, and the position of adjustment base 1, tapered end 31 can be snapped between two tie bolt pairs 2 on the propeller shafting flange 5, then base 1 is fixed by bolts on the hull, connects the control circuit of travel switch 4 simultaneously.

Referring to Fig. 2, the lock operation process of propeller shafting is as follows: stop at marine main engine, under the situation of propeller shafting stall, extract bar handle 32 and right support 12 below knock holees 13 (unclamping the position) bonded

assembly latch

7,32 disengagings of bar handle contact with travel switch 4, again around hinge 6 rotation brake blocks 3, make tapered end 31 1 sides rely on propeller shafting flange 5, and corresponding the insertion between two tie bolt pairs 2, propeller shafting flange 5 is locked in place, keep static, can't rotate, then in the knock hole 13 (locking position) with the corresponding insertion of the pin-and-hole of latch 7 on bar handle 32 right support 12 tops, prevent that tapered end 31 from deviating from, thereby finished locking propeller shafting.If the tapered end 31 of stopper tab 3 is difficult to be inserted between the two tie bolt pairs 2, can utilize turning gear to rotate propeller shafting flange 5 a little, make the gap subtend tapered end 31 of two tie bolt pairs 2 can insert tapered end 31, realize the locking of propeller shafting.

Referring to Fig. 3, the releasing operation process of propeller shafting is as follows: at the marine main engine prestart, extract bar handle 32 and right support 12 top knock holees 13 (locking position) bonded assembly latch 7, again around hinge 6 rotation brake blocks 3, make tapered end 31 1 sides away from propeller shafting flange 5, leave tie bolt 8 fully up to tapered end 9, then in the knock hole 13 (unclamping the position) with the corresponding insertion of the pin-and-hole of latch 7 on bar handle 32 right support 12 belows, prevent that tapered end 31 from falling to propeller shafting flange 5, at this moment, the downward bruising travel switch 4 of bar handle 32 meetings, the moving contact of travel switch 4 and fixed contact conducting are sent the braking ring off signal to control system, and the locking of axle system discharges to be finished, this moment, main frame could start

Claims

1. propeller shafting lock shaft device, it is characterized in that: comprise a bearing (1) and a stopper tab (3), one end of stopper tab (3) is provided with the tapered end (31) between the tie bolt pair (2) that can insert propeller shafting flange (5), the other end is bar handle (32), the middle part of stopper tab (3) is hinged on the bearing (1), described tapered end (31) is towards bearing (1) outside, and described bar handle (32) is connected with bearing (1) through latch (7).

2. a kind of propeller shafting lock shaft device according to claim 1, it is characterized in that: described stopper tab (3) is angular pole always, described tapered end (31) is arranged on the outside of right angle bar minor face, described bar handle (32) is the long limit of right angle bar, and the rotation angle position of right angle bar is hinged on the bearing (1).

3. a kind of propeller shafting lock shaft device according to claim 1 and 2, it is characterized in that: described bearing (1) is provided with left socle (11) and right support (12), stopper tab (3) through hinge (6) and left socle (11) hinged and tapered end (31) towards the outside of left socle (11), the bar handle (32) of stopper tab (3) is provided with pin-and-hole, the pin-and-hole that described right support (12) is gone up on the corresponding bar handle (32) is provided with two knock holees (13), and described latch (7) can be in the corresponding arbitrary knock hole of insertion of pin-and-hole (13).

4. a kind of propeller shafting lock shaft device according to claim 1 and 2 is characterized in that: described tapered end (31) is a taper type, and the width of frustum major part is less than or equal to the space between the last two tie bolt pairs (2) of propeller shafting flange (5).

5. a kind of propeller shafting lock shaft device according to claim 1 and 2 is characterized in that: described bearing (1) is gone up corresponding bar handle (32) and is provided with travel switch (4), and the moving contact of travel switch (4) points to bar handle (32).