CN212738473U

CN212738473U - Oil distribution mechanism of adjustable-pitch rudder propeller

Info

Publication number: CN212738473U
Application number: CN202021421055.7U
Authority: CN
Inventors: 陈实
Original assignee: Suzhou Sujing Marine Machinery Co ltd
Current assignee: Suzhou Sujing Marine Machinery Co ltd
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-19
Anticipated expiration: 2030-07-17

Abstract

The utility model relates to an oil distribution mechanism of adjustable pitch rudder propeller, oil distribution mechanism is including locating the oil distribution ring between bearing frame inner periphery and oar axle periphery, set up the oiling passageway that communicates first oil filler point and second oil filler point on the oil distribution ring, be formed with annular space between the inner peripheral surface of oil distribution ring and the oar axle outer peripheral face, annular space separates the inner peripheral surface of oil distribution ring and oar axle outer peripheral face, set up on the oil distribution ring and dodge the groove, oil distribution mechanism still includes the seal ring subassembly; carry out the sealed protection of oil leak through changing original mode through joining in marriage oil ring and oar axle clearance fit, through setting up the sealing ring subassembly, remove the clearance fit relation of joining in marriage between oil ring and the oar axle, let the two spaced apart, guarantee sealed effect through the sealing ring subassembly, avoid oil leak, because the rotatable design of sealing ring subassembly, the sealing ring subassembly is along with the rotatory alignment center of oar axle, the internal week of sealing ring subassembly can not be because of the rotatory wearing and tearing that produce of oar axle, can use for a long time, reduce the maintenance replacement cost.

Description

Oil distribution mechanism of adjustable-pitch rudder propeller

Technical Field

The utility model relates to an oil distribution mechanism of adjustable pitch rudder propeller.

Background

At present, the adjustable pitch rudder propeller distributes pressure through an oil distribution mechanism to drive a rotating blade mechanism to rotate a propeller so as to change the pitch of the propeller, the oil distribution mechanism is arranged at the rear end of a propeller shaft part and is communicated with an oil distribution bush and an oil pipe assembly on the inner periphery of the propeller shaft part, as shown in fig. 3, the oil distribution mechanism in the prior art generally comprises an oil distribution copper sleeve sleeved at the rear part of the propeller shaft, the oil distribution copper sleeve is cold embedded into the inner periphery of a bearing seat and is fixed on the inner periphery of the bearing seat, and the oil distribution copper sleeve needs to meet the relative rotation relation with the propeller shaft, so the oil distribution copper sleeve and the propeller shaft are in clearance fit, but in order to avoid the injected hydraulic oil flowing out from the clearance, the clearance between the oil distribution copper sleeve and the propeller shaft needs to be small enough, the; after the long-time rotation of oar axle, join in marriage oily copper sheathing and can produce the phenomenon of decentraction with the oar axle because of thermal expansion, pressure are inhomogeneous, gear box vibration etc to aggravate wearing and tearing, increaseing the clearance between the two, leading to hydraulic oil to let out leakage quantity increase, thereby make join in marriage oily sealed inefficacy, the quick inefficacy of sealed effect makes maintenance replacement cost very high, notes: the inner circumferential surface of the oil distribution copper sleeve is provided with an oil distribution ring groove, a through hole extending along the radial direction is formed in the oil distribution ring groove, hydraulic oil is communicated from the hole in the bearing seat to the through hole of the oil distribution copper sleeve through a pipeline by an external oil supply mechanism, then enters the inner side ring groove, and finally enters the oil pipe assembly from the hole in the propeller shaft through the bushing.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide an oil distribution mechanism of adjustable pitch rudder propeller.

In order to solve the technical problem, the utility model discloses the technical scheme who takes as follows:

an oil distribution mechanism of a controllable-pitch rudder propeller comprises a propeller, a propeller shaft, an oil distribution bush and an oil pipe assembly which are arranged on the inner periphery of the propeller shaft and are communicated with each other, a bearing seat arranged on the rear part of the outer periphery of the propeller shaft, and an oil distribution mechanism arranged on the rear part of the inner periphery of the bearing seat, wherein a first oil filling hole is formed in the bearing seat, a second oil filling hole is formed in the propeller shaft, the oil distribution mechanism comprises an oil distribution ring arranged between the inner periphery of the bearing seat and the outer periphery of the propeller shaft, an oil filling channel for communicating the first oil filling hole and the second oil filling hole is formed in the oil distribution ring, an annular spacing space is formed between the inner peripheral surface of the oil distribution ring and the outer peripheral surface of the propeller shaft, an avoiding groove is formed in the oil distribution ring, the oil distribution mechanism further comprises a sealing ring assembly arranged in the avoiding groove and used for preventing hydraulic oil from leaking, and the sealing ring assembly can rotate relative to the paddle shaft and the oil distribution ring.

Preferably, the clearance between the inner peripheral surface of the sealing ring component and the outer peripheral surface of the paddle shaft is 0.06 mm-0.08 mm.

Preferably, the sealing ring assembly includes at least a first sealing ring and a second sealing ring respectively located at both sides of the oil filling passage.

Preferably, the oil distribution mechanism further comprises a stabilizing assembly for stabilizing the oil distribution ring and the sealing ring assembly between the bearing seat and the propeller shaft.

Preferably, the stabilizing assembly comprises a first annular baffle and a second annular baffle located axially on either side of the oil distribution ring.

Preferably, the oil distribution ring comprises a first ring body and a second ring body which are close to each other in the axial direction, and the first sealing ring and the second sealing ring are respectively positioned on one side of the first ring body and the second ring body which are far away from each other.

Preferably, in the axial direction of the propeller shaft, the first oil injection hole, the second oil injection hole and the oil injection channel are respectively provided with two groups which are distributed at intervals, and the two groups of oil injection channels are respectively arranged on the first ring body and the second ring body.

Preferably, the seal ring assembly further comprises a third seal ring disposed between the first ring body and the second ring body.

Preferably, annular throttling grooves are formed in the inner circumferential surfaces of the first sealing ring, the second sealing ring and the third sealing ring.

Preferably, annular throttling grooves are formed in the two axial side faces of the first sealing ring, the second sealing ring and the third sealing ring.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses an oil distribution mechanism of adjustable pitch rudder propeller, carry out the sealed protection of oil leak through changing original mode through joining in marriage oil ring and oar axle clearance fit, through setting up the sealing ring subassembly, remove the clearance fit relation between joining in marriage oil ring and the oar axle (and owing to join in marriage between oil ring and the oar axle by spaced apart, avoided among the prior art because of joining in marriage the problem that the oil ring wearing and tearing lead to sealed inefficacy after long-time the use), let the two spaced apart, guarantee sealed effect through the sealing ring subassembly, avoid oil leak, because sealing ring subassembly rotatable design, the sealing ring subassembly is along with the rotatory alignment center of oar axle, the interior week of sealing ring subassembly can not produce wearing and tearing because of the oar axle rotation, long-time use, reduce the maintenance replacement.

Drawings

Fig. 1 is a partial structural sectional view of a rudder propeller according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a partial cross-sectional view of a prior art rudder paddle;

wherein: 100. a bearing seat; 101. a bearing; 10. a paddle shaft; 11. an oil pipe assembly; 12. oil distribution lining; d1, a first annular baffle; d2, second annular baffle; m1, a first seal ring; m2, a second sealing ring; m3, a third sealing ring; p1, a first ring; p2, a second ring; k1, a first oil hole; k2, a second oil hole; k31, vias; k32, ring groove; c1, throttling groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, 2 and 3, an oil distribution mechanism of a controllable-pitch rudder propeller includes a propeller (not shown in the figure), a propeller shaft 10, an oil distribution bush 12 and an oil pipe assembly 11 which are arranged on the inner periphery of the propeller shaft 10 and are communicated with each other, a bearing 101 seat 100 arranged on the rear portion of the outer periphery of the propeller shaft 10, an oil distribution mechanism arranged on the rear portion of the inner periphery of the bearing 101 seat 100 (a bearing 101 is arranged between the front portion of the inner periphery of the bearing 101 seat 100 and the propeller shaft 10), a first oil injection hole k1 is arranged on the bearing 101 seat 100, a second oil injection hole k2 is arranged on the propeller shaft 10, the oil distribution mechanism includes an oil distribution ring arranged between the inner periphery of the bearing 101 seat 100 and the outer periphery of the propeller shaft 10, an oil injection passage is arranged on the oil distribution ring and communicates the first oil injection hole k1 and the second oil injection hole k2 (the oil passage includes a ring groove k32 arranged on the inner periphery of the oil distribution ring and a through hole k31, the annular groove k32 is in butt joint communication with the second oil injection hole k 2), an annular space (with the thickness of 0.3 mm-0.5 mm) is formed between the inner circumferential surface of the oil distribution ring and the outer circumferential surface of the propeller shaft 10, the inner circumferential surface of the oil distribution ring is separated from the outer circumferential surface of the propeller shaft 10 by the annular space, an avoiding groove is formed in the oil distribution ring, the oil distribution mechanism further comprises a seal ring assembly which is arranged in the avoiding groove and used for preventing hydraulic oil from leaking out, the inner circumferential surface of the seal ring assembly is in clearance fit with the outer circumferential surface of the propeller shaft 10, so that the seal ring can rotate relative to the propeller shaft 10, in the embodiment, the seal ring assembly can rotate relative to the propeller.

In this example, the clearance between the inner peripheral surface of the seal ring assembly and the outer peripheral surface of the propeller shaft 10 is 0.06mm to 0.08mm, the clearance cannot be too large, a certain amount of leakage is allowed, and the axial sealing performance mainly depends on the narrow radial clearance between the seal ring and the propeller shaft 10.

Specifically, in the axial direction of the propeller shaft 10, the first oil injection hole k1, the second oil injection hole k2 and the oil injection passage are provided with two groups which are distributed at intervals; the oil distribution ring also comprises a first ring body p1 and a second ring body p2 which are close to each other in the axial direction, and two groups of oil injection channels are respectively arranged on the first ring body p1 and the second ring body p 2.

The sealing ring assembly comprises a first sealing ring m1, a second sealing ring m2 and a third sealing ring m 3; the first sealing ring m1 and the second sealing ring m2 are respectively positioned at the opposite far sides of the first ring body p1 and the second ring body p2, and the third sealing ring m3 is positioned between the first ring body p1 and the second ring body p 2.

That is, one set of the oil filling passages is located between the first seal ring m1 and the second seal ring m2, and the other set of the oil filling passages is located between the second seal ring m2 and the third seal ring m3, and the hydraulic oil is effectively prevented from flowing out from the gap between the inner peripheral surface of the oil distribution ring and the outer peripheral surface of the paddle shaft 10.

The oil distribution mechanism further comprises a stabilizing assembly for stabilizing the oil distribution ring, seal ring assembly between the bearing 101 seat 100 and the paddle shaft 10. The stabilizing assembly comprises a first annular baffle d1 and a second annular baffle d2 which are positioned at two sides of the axial direction of the oil distribution ring, a bolt penetrates through the first annular baffle d1 and the second annular baffle d2, and the first annular baffle d1 and the second annular baffle d2 enable the first annular body p1, the second annular body p2 and the sealing rings to be combined together from two sides and are stabilized relative to the bearing 101 seat 100; the sealing rings are still freely rotatable, and the oil distribution ring is fixedly connected with the bearing 101 seat 100.

During assembly, the first annular baffle d1 is firstly placed into the inner periphery of the bearing 101 seat 100 from the front end of the bearing 101 seat to a corresponding position, and then the first sealing ring m1, the first ring p1, the third sealing ring m3, the second ring p2, the second sealing ring m2 and the second annular baffle d2 are sequentially placed into the inner periphery of the bearing 101 seat 100 from the rear end of the bearing 101 seat 100 to a corresponding position, and the split design of the first ring p1 and the second ring p2 provides a precondition for the installation of the third sealing ring m 3.

In addition, when the paddle shaft 10 rotates, each sealing ring rotates along with the paddle shaft 10 and can rotate along with the paddle shaft 10 to align the center, and when hydraulic oil is injected, the hydraulic oil can apply certain pushing force to the sealing blocks from one side. Taking the first seal ring m1 as an example: the first sealing ring m1 will abut against the first ring-shaped baffle plate d1 under the pressure of the hydraulic oil (the first sealing ring m1 which rotates and has aligned the center will also stop rotating), so that the hydraulic oil can be effectively prevented from passing through the gap between the first sealing ring m1 and the first ring-shaped baffle plate d1 when the oil is added.

In this example, annular throttle grooves c1 are formed in the inner circumferential surfaces and both axial side surfaces of the first seal ring m1, the second seal ring m2, and the third seal ring m3, and the throttle grooves c1 can slow down the flow of oil, thereby further reducing leakage.

To sum up, the utility model discloses an oil distribution mechanism of adjustable pitch rudder propeller, carry out the sealed protection of oil leak through changing original through joining in marriage oil ring and oar axle clearance fit's mode, through setting up the sealing ring subassembly, remove the clearance fit relation of joining in marriage between oil ring and the oar axle (and owing to join in marriage between oil ring and the oar axle by spaced apart, avoided among the prior art because of joining in marriage the oil ring wearing and tearing after long-time the use and lead to the problem of sealed inefficacy), let the two spaced apart, guarantee sealed effect through the sealing ring subassembly, avoid the oil leak, because sealing ring subassembly rotatable design, the sealing ring subassembly is along with the rotatory alignment center of oar axle, the interior week of sealing ring subassembly can not be because of the rotatory wearing and tearing that produce of oar axle, can.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides an adjustable pitch steering oar join in marriage oily mechanism, the steering oar includes screw, oar axle, locates the interior circumference of oar axle and the oil distribution bush and the oil pipe subassembly that communicate each other, locate the bearing frame at oar axle periphery rear portion, locate the oil distribution mechanism at the interior circumference rear portion of bearing frame, first oil filler point has been seted up on the bearing frame, the epaxial second oil filler point of having seted up of oar, it is including locating to join in marriage the oil ring between the interior circumference of bearing frame and the oar axle periphery to join in marriage oily mechanism, join in marriage and set up on the oil ring will first oil filler point with the oiling passageway of second oil filler point intercommunication, its characterized in that: an annular spacing space is formed between the inner circumferential surface of the oil distribution ring and the outer circumferential surface of the propeller shaft, the annular spacing space separates the inner circumferential surface of the oil distribution ring from the outer circumferential surface of the propeller shaft, an avoiding groove is formed in the oil distribution ring, the oil distribution mechanism further comprises a sealing ring assembly which is arranged in the avoiding groove and used for preventing hydraulic oil from leaking out, and the inner circumferential surface of the sealing ring assembly is in clearance fit with the outer circumferential surface of the propeller shaft; and the sealing ring assembly can rotate relative to the paddle shaft and the oil distribution ring.

2. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 1, characterized in that: and the clearance between the inner peripheral surface of the sealing ring assembly and the outer peripheral surface of the paddle shaft is 0.06-0.08 mm.

3. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 2, characterized in that: the sealing ring assembly at least comprises a first sealing ring and a second sealing ring which are respectively positioned at two sides of the oil filling channel.

4. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 1, characterized in that: the oil distribution mechanism further comprises a stabilizing assembly for stabilizing the oil distribution ring and the sealing ring assembly between the bearing seat and the propeller shaft.

5. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 4, wherein: the stabilizing assembly includes a first annular baffle and a second annular baffle located on both axial sides of the oil distribution ring.

6. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 3, characterized in that: the oil distribution ring comprises a first ring body and a second ring body which are close to each other in the axial direction, and the first sealing ring and the second sealing ring are respectively positioned on one sides, far away from each other, of the first ring body and the second ring body.

7. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 6, characterized in that: in the axial direction of the paddle shaft, the first oil injection hole, the second oil injection hole and the oil injection channel are respectively provided with two groups which are distributed at intervals, and the two groups of oil injection channels are respectively arranged on the first ring body and the second ring body.

8. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 7, characterized in that: the seal ring assembly further includes a third seal ring disposed between the first ring body and the second ring body.

9. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 8, characterized in that: annular throttling grooves are formed in the inner circumferential surfaces of the first sealing ring, the second sealing ring and the third sealing ring.

10. The oil distribution mechanism of an adjustable pitch rudder propeller according to claim 8, characterized in that: and annular throttling grooves are formed in the two axial side surfaces of the first sealing ring, the second sealing ring and the third sealing ring.