Propeller distance-adjusting oil distribution mechanism for ship thruster

Abstract

The invention relates to the technical field of oil distribution mechanisms, in particular to a propeller pitch-adjusting oil distribution mechanism for a ship thruster, which mainly comprises a shell, an outer pipe rotatably mounted on the left side surface of the shell through a bearing seat in a penetrating manner, an oil distribution pipe movably mounted on the inner wall of the outer pipe, an indicating mechanism arranged in the shell, and a smearing mechanism, the smearing mechanisms are arranged on the two sides of the oil distribution pipe, each smearing mechanism comprises a connecting rod located on one side of the sleeve, a T-shaped plate and spraying mechanisms are hinged to one end of each connecting rod, and the spraying mechanisms are arranged on the two sides of each T-shaped plate. When an oil distribution pipe and an outer pipe move relatively, a movable plate drives a connecting rod and a T-shaped plate to move, the T-shaped plate extrudes a telescopic air bag on one side, lubricating oil in the telescopic air bag is extruded and sprayed to the outer wall of the oil distribution pipe from a spray head through a hose, and lubrication between the oil distribution pipe and the outer pipe is guaranteed; lubrication between the inner wall of the outer pipe and the outer wall of the oil distribution pipe is guaranteed, abrasion between the two is reduced, and the service life of the whole device is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of oil distribution mechanisms, in particular to a propeller pitch-adjustable oil distribution mechanism for a ship propeller. Background Art

[0002] The adjustable pitch propeller is a special propulsion device for ships. It controls the oil distribution mechanism in the ship to adjust the built-in mechanism of the hub to rotate the blades, so that the angle between the hub and the blades changes, so as to adjust the pitch to adapt to various working (sea) conditions. The pitch can be adjusted by the ship's driver remotely on the bridge, so that the main engine power can be fully utilized in both free navigation and towing navigation, and it can also have better reverse, acceleration and braking performance.

[0003] However, during the long-term navigation of the ship, the angle of the propeller is usually in a fixed state. In this state, the outer tube and the oil distribution pipe of the adjustable pitch propeller will also maintain a relatively fixed position for a long time. Since there is no relative movement between the inner and outer tubes for a long time, the lubricating oil at the connection at one end of the outer tube is easy to evaporate, thereby weakening the lubrication effect. When the propeller angle needs to be adjusted, the relative position between the outer tube and the oil distribution pipe will change. This movement will increase the friction between the two. Over time, the continuous friction will cause a large degree of wear on the inner wall of the outer tube and the outer wall of the oil distribution pipe, ultimately affecting the service life of the entire device. Summary of the invention

[0004] The object of the present invention is to provide a propeller pitch control and oil distribution mechanism for a ship propeller to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A propeller pitch adjustment and oil distribution mechanism for a ship propeller comprises: a housing, a maintenance cover is fixedly installed on the top surface of the housing by bolts, an oil inlet is provided through the right side of the housing, an outer tube is installed through the left side of the housing through the bearing seat, and an oil distribution pipe is movably installed on the inner wall of the outer tube; The indicating mechanism is arranged inside the housing, and includes a fixed sleeve rotatably mounted on the outer wall of one end of the oil distribution pipe through a second bearing seat, sleeves are arranged on both sides of the fixed sleeve, a connecting shaft is fixedly mounted on one end of the sleeve, and pointers are fixedly mounted on the outer walls of both ends of the connecting shaft, respectively, and the indicating mechanism is used to indicate the pitch adjustment angle of the propeller; The smearing mechanism is arranged on both sides of the oil distribution pipe, and the smearing mechanism includes a connecting rod located on one side of the sleeve, a T-shaped plate is hinged at one end of the connecting rod, and a smearing brush is arranged on one side of the T-shaped plate. The smearing mechanism is used to evenly smear the lubricating oil on the outer wall of the oil distribution pipe; The spraying mechanism is arranged on both sides of the T-shaped plate, and the spraying mechanism includes a spray head located on one side of the coating brush, and telescopic air bags are arranged on both sides of the spray head. The spraying mechanism is used to spray lubricating oil on the outer wall of the oil distribution pipe; A connecting mechanism is arranged on one side of the oil distribution pipe and is used for installing and disassembling the oil distribution pipe.

[0006] Preferably, an oil hole 1 and an oil hole 2 are provided through the inner wall of the oil distribution pipe, an oil distribution ring is installed on the outer wall of one end of the oil distribution pipe through a tapered roller bearing, a T-shaped grid ring is movably installed on the outer wall of the oil distribution pipe, the outer wall of the T-shaped grid ring is fixedly connected to the inner wall of the outer pipe, a connecting pipe is fixedly installed on one end of the oil distribution pipe through an O-ring 3, an oil distribution pipe stub is fixedly installed on one end of the connecting pipe through an O-ring 1, and an O-ring 2 is fixedly installed on the outer wall of one end of the oil distribution pipe stub.

[0007] Preferably, the front and rear sides of the fixed sleeve are respectively fixedly installed with limit rods, and the far ends of the two limit rods are respectively fixedly installed with limit plates. The front and rear sides of the shell are respectively provided with T-shaped limit grooves, and the two limit rod sides and the two limit plate sides are respectively slidably connected to the inner walls of the two T-shaped limit grooves.

[0008] Preferably, the upper and lower sides of the fixed sleeve are respectively hinged with support rods, and the other ends of the two support rods slide through the two sleeve sides and extend into the interior of the sleeve. One end of the two support rods is respectively fixedly installed with movable plates, and the outer walls of the two movable plates are respectively slidably connected to the inner walls of the two sleeves.

[0009] Preferably, elastic parts are fixedly installed on the inner walls of one end of the two sleeves, and the other ends of the two elastic parts are fixedly connected to the bottom surfaces of the two movable plates respectively. Two support bars are fixedly installed on the left inner wall of the shell, and the outer wall of the connecting shaft is rotatably connected to the inner wall of the support bar through a third bearing seat.

[0010] Preferably, the two connecting shafts rotate through the front and rear inner walls of the shell and extend to the outside of the shell. The front and rear sides of the shell are respectively fixedly installed with round frames, and a plurality of scale lines are fixedly installed on the sides of the round frames.

[0011] Preferably, movable grooves are respectively opened through the sides of the two sleeves, and movable bars are fixedly installed on the outer walls of the two movable plates. The sides of the two movable bars are slidingly connected to the inner walls of the two movable grooves respectively. There are two connecting rods, and the other ends of the two connecting rods are respectively hinged to one end of the two movable bars.

[0012] Preferably, two L-shaped plates are fixedly installed on the left inner wall of the shell, and a circular sleeve is fixedly installed on the other end of the two L-shaped plates. T-shaped slots are respectively provided on the upper and lower sides of the circular sleeve. The inner walls of the two T-shaped slots are respectively slidably connected to the sides of the two T-shaped plates. Two through slots are respectively provided on the inner walls of the two T-shaped slots. Two fixing rods are respectively fixedly installed near the sides of the two T-shaped plates, and arc-shaped plates are respectively fixedly installed on the other ends of the two fixing rods. Multiple smear bristles are respectively fixedly installed on the inner walls of the two arc-shaped plates.

[0013] Preferably, a plurality of nozzles are provided, and the plurality of nozzles are fixedly installed on the inner walls of the two arc-shaped plates respectively; a plurality of telescopic airbags are provided, and the plurality of nozzles are connected with the plurality of telescopic airbags through hoses respectively; oil inlet pipes are installed on the outer walls of the plurality of telescopic airbags respectively; one-way valves are fixedly installed on one end of the plurality of oil inlet pipes and the plurality of hoses respectively; a plurality of mounting plates are fixedly installed on the outer wall of the circular sleeve; the sides of the plurality of mounting plates are fixedly connected with the outer walls of the plurality of telescopic airbags respectively; and the sides of the two T-shaped plates are abutted with the plurality of telescopic airbags respectively.

[0014] Preferably, a fixing seat is fixedly installed on the side of the guide frame, a spring retainer is movably installed on the inner wall of the fixing seat, a spring is fixedly installed on the side of the spring retainer, the other end of the spring is fixedly connected to the side of the guide frame, two grooves are provided on the side of the fixing seat, two card slots are provided on the inner wall of the fixing seat, two card blocks are fixedly installed on the outer wall of the oil distribution pipe short shaft, and the two card blocks are carded in the two card slots.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, when the oil distribution pipe and the outer pipe move relative to each other, the oil distribution pipe drives the support rod and the moving plate to move, the moving plate drives the connecting rod and the T-shaped plate to move, the T-shaped plate squeezes the telescopic airbag on one side, the lubricating oil inside the telescopic airbag is squeezed, and is sprayed from the nozzle to the outer wall of the oil distribution pipe through the hose, thereby ensuring lubrication between the oil distribution pipe and the outer pipe. Each time the propeller angle is adjusted, the lubricating oil is sprayed to the oil distribution pipe. When the propeller angle is adjusted so that the oil distribution pipe and the outer pipe are relatively displaced, lubrication between the inner wall of the outer pipe and the outer wall of the oil distribution pipe is ensured, thereby reducing wear between the two and increasing the service life of the entire device. When the oil distribution pipe moves, the moving bar drives the connecting rod to move, the connecting rod drives the T-shaped plate to move, the T-shaped plate drives the fixed rod and the arc plate to move, the arc plate drives the smearing brush to move, and the smearing brush evenly smears the lubricating oil on the outer wall of the oil distribution pipe, so that the oil distribution pipe and the outer pipe are lubricated, further improving the lubrication between the oil distribution pipe and the outer pipe, reducing the wear between the oil distribution pipe and the outer pipe, and further improving the service life of the entire device; The angle of the propeller is adjusted by adjusting the inflow and outflow of the hydraulic oil in the oil hole 1 and the oil hole 2, thereby driving the oil distribution pipe to move. When the oil distribution pipe moves, it drives the fixed sleeve to move, the fixed sleeve drives the support rod to rotate a certain angle, the support rod drives the sleeve and the connecting shaft to rotate, and the connecting shaft drives the pointer to rotate. By observing the scale of the scale line pointed by the pointer, the change of the propeller angle can be intuitively observed, which is more intuitive and convenient. When it is necessary to replace the sealing element of the oil distribution mechanism, push the oil distribution pipe from the outside until the spring is compressed to the shortest and disengaged from the slot. At this time, rotate the oil distribution pipe 90° and rely on the elastic force of the spring to rebound and pull out the entire oil distribution mechanism. After replacing the sealing element, insert the oil distribution mechanism back into its original position and push the oil distribution pipe until the spring is compressed to the shortest. At this time, rotate the oil distribution pipe 90° and rely on the rebound of the spring to reset it to the slot. The operation is convenient and quick, and work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the housing of the present invention; Figure 3 It is a cross-sectional schematic diagram of the three-dimensional structure of the oil distribution pipe of the present invention; Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 5 It is a schematic diagram of the three-dimensional structure of the sleeve of the present invention; Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the sleeve of the present invention; Figure 7 It is a cross-sectional schematic diagram of the three-dimensional structure of the circular sleeve of the present invention; Figure 8 This is an exploded view of the three-dimensional structure of the bristles of the application brush of the present invention; Fig. 9 For the present invention Figure 8 Enlarged view of point B in the middle; Fig.10 It is the oil distribution structure diagram of the present invention; Fig.11 It is a cross-sectional schematic diagram of the three-dimensional structure of the fixing seat of the present invention; Fig.12 It is an exploded view of the three-dimensional structure of the spring retainer of the present invention; Fig.13 It is the hydraulic principle diagram of the present invention.

[0017] In the figure: 1. Housing; 101. Inspection cover; 102. Oil inlet; 103. Outer pipe; 104. Oil distribution pipe; 105. Oil hole 1; 106. Oil hole 2; 107. Oil distribution ring; 108. Tapered roller bearing; 109. T-type Glyd ring; 110. O-ring 1; 111. Connecting pipe; 112. Oil distribution pipe stub shaft; 113. O-ring 2; 114. O-ring 3; 2. Indicator mechanism; 201. Fixed sleeve; 202. Limit rod; 203. Limit plate; 204. T-shaped limit groove; 205. Sleeve; 206. Moving plate; 207. Elastic member; 208. Support bar; 209. Connecting shaft; 210. Pointer; 211. Round frame; 212. Scale line; 213. Support rod; 3. Smear mechanism; 301. Moving groove; 302. Moving strip; 303. Connecting rod; 304. T-shaped plate; 305. L-shaped plate; 306. Round sleeve; 307. T-shaped groove; 308. Through groove; 309. Fixed rod; 310. Arc plate; 311. Smear brush; 4. Spraying mechanism; 401. Spray head; 402. Hose; 403. Telescopic airbag; 404. Mounting plate; 405. Oil inlet pipe; 5. Connecting mechanism; 501. Fixed seat; 502. Spring retainer; 503. Spring; 504. Slot body; 505. Card slot; 506. Card block. DETAILED DESCRIPTION

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] like Figure 1-Figure 13 As shown, the present application provides a propeller pitch adjustment and oil distribution mechanism for a ship propeller, comprising: a housing 1, a maintenance cover 101 is fixedly installed on the top surface of the housing 1 by bolts, an oil inlet 102 is provided through the right side of the housing 1, an outer tube 103 is installed through the left side of the housing 1 by rotating through the bearing seat, and an oil distribution pipe 104 is movably installed on the inner wall of the outer tube 103; Specifically, Figure 1-Figure 12As shown, the inner wall of the oil distribution pipe 104 is provided with an oil hole 105 and an oil hole 2 106, an oil distribution ring 107 is installed on the outer wall of one end of the oil distribution pipe 104 through a tapered roller bearing 108, a T-shaped grid ring 109 is movably installed on the outer wall of the oil distribution pipe 104, and the outer wall of the T-shaped grid ring 109 is fixedly connected to the inner wall of the outer pipe 103, a connecting pipe 111 is fixedly installed on one end of the oil distribution pipe 104 through an O-ring 3 114, an oil distribution pipe stub shaft 112 is fixedly installed on one end of the connecting pipe 111 through an O-ring 1 110, and an O-ring 2 113 is fixedly installed on the outer wall of one end of the oil distribution pipe stub shaft 112.

[0021] In this embodiment: by setting the oil hole 105 and the oil hole 2 106, by adjusting the inlet and outlet hydraulic oil of the oil hole 105 and the oil hole 2 106, the position of the oil distribution pipe 104 can be adjusted, so that the position of the oil distribution pipe 104 can be freely adjusted, thereby freely adjusting the angle of the propeller. The tapered roller bearing 108 provides axial displacement thrust for the oil distribution ring 107 and plays a certain self-aligning role. The T-type grid ring 109 is used for sealing and cooperates with other structures to form a high-pressure closed chamber.

[0022] The indicating mechanism 2 is arranged inside the housing 1, and includes a fixed sleeve 201 rotatably mounted on the outer wall of one end of the oil distribution pipe 104 through a second bearing seat, sleeves 205 are arranged on both sides of the fixed sleeve 201, a connecting shaft 209 is fixedly mounted on one end of the sleeve 205, and pointers 210 are fixedly mounted on the outer walls of both ends of the connecting shaft 209, respectively, and the indicating mechanism 2 is used to indicate the pitch adjustment angle of the propeller; Specifically, Figure 1-Figure 6 As shown, the front and rear sides of the fixing sleeve 201 are respectively fixedly installed with limiting rods 202, and the far ends of the two limiting rods 202 are respectively fixedly installed with limiting plates 203. The front and rear sides of the shell 1 are respectively provided with T-shaped limiting grooves 204, and the sides of the two limiting rods 202 and the sides of the two limiting plates 203 are respectively slidably connected to the inner walls of the two T-shaped limiting grooves 204.

[0023] In this embodiment: the T-shaped limiting groove 204 is provided to limit the limiting rod 202 and the limiting plate 203, thereby limiting the fixing sleeve 201. The fixing sleeve 201 provides certain support and limitation to the oil distribution pipe 104, ensuring that the oil distribution pipe 104 and the fixing sleeve 201 move more stably.

[0024] Specifically, Figure 1-Figure 6 As shown, the upper and lower sides of the fixed sleeve 201 are respectively hinged with support rods 213, and the other ends of the two support rods 213 slide through the sides of the two sleeves 205 and extend to the inside of the sleeves 205. One end of the two support rods 213 is respectively fixedly installed with movable plates 206, and the outer walls of the two movable plates 206 are respectively slidably connected to the inner walls of the two sleeves 205.

[0025] In this embodiment, when the fixing sleeve 201 moves, the supporting rod 213 is driven to move and rotate at a certain angle, and the supporting rod 213 drives the sleeve 205 to rotate at a certain angle through the moving plate 206 .

[0026] Specifically, Figure 1-Figure 6 As shown, elastic members 207 are fixedly installed on the inner walls at one end of the two sleeves 205, and the other ends of the two elastic members 207 are fixedly connected to the bottom surfaces of the two movable plates 206 respectively. Two support bars 208 are fixedly installed on the left inner wall of the shell 1, and the outer wall of the connecting shaft 209 is rotatably connected to the inner wall of the support bar 208 through a third bearing seat.

[0027] In this embodiment: the elastic member 207 is provided, and the elastic member 207 applies elastic force to the movable plate 206 to ensure that the movable plate 206 and the inner wall of the lower end of the sleeve 205 are in a straight state, so that the movable plate 206 drives the sleeve 205 to rotate more stably and not easy to shake, and when the sleeve 205 rotates, it drives the connecting shaft 209 to rotate.

[0028] Specifically, Figure 1-Figure 6 As shown, the two connecting shafts 209 rotate through the front and rear inner walls of the shell 1 and extend to the outside of the shell 1. The front and rear sides of the shell 1 are respectively fixedly installed with round frames 211, and the sides of the round frames 211 are fixedly installed with multiple scale lines 212.

[0029] In this embodiment, when the connecting shaft 209 rotates, the pointer 210 is driven to rotate, and the pointer 210 points to the position of the scale line 212, so that the rotation angle of the propeller can be read intuitively.

[0030] The smearing mechanism 3 is arranged on both sides of the oil distribution pipe 104. The smearing mechanism 3 includes a connecting rod 303 located on one side of the sleeve 205. A T-shaped plate 304 is hinged at one end of the connecting rod 303. A smearing brush 311 is arranged on one side of the T-shaped plate 304. The smearing mechanism 3 is used to evenly smear the lubricating oil on the outer wall of the oil distribution pipe 104. Specifically, Figure 1-Figure 9 As shown, movable grooves 301 are respectively opened through the sides of the two sleeves 205, and movable bars 302 are respectively fixedly installed on the outer walls of the two movable plates 206. The sides of the two movable bars 302 are respectively slidably connected to the inner walls of the two movable grooves 301. There are two connecting rods 303, and the other ends of the two connecting rods 303 are respectively hinged to one end of the two movable bars 302.

[0031] In this embodiment, the moving plate 206 moves, thereby driving the moving bar 302 to move, and the moving bar 302 drives the connecting rod 303 to move.

[0032] Specifically, Figure 1-Figure 9As shown, two L-shaped plates 305 are fixedly installed on the inner wall on the left side of the shell 1, and a circular sleeve 306 is fixedly installed on the other end of the two L-shaped plates 305. The upper and lower sides of the circular sleeve 306 are respectively provided with T-shaped grooves 307. The inner walls of the two T-shaped grooves 307 are respectively slidably connected to the sides of the two T-shaped plates 304. The inner walls of the two T-shaped grooves 307 are respectively provided with two through grooves 308. Two fixing rods 309 are respectively fixedly installed near the sides of the two T-shaped plates 304, and the other ends of the two fixing rods 309 are respectively fixedly installed with arc plates 310, and the inner walls of the two arc plates 310 are respectively fixedly installed with a plurality of smear bristles 311.

[0033] In this embodiment: the T-shaped plate 304 is limited by the T-shaped groove 307, and the connecting rod 303 moves to drive the T-shaped plate 304 to move. The T-shaped plate 304 drives the fixed rod 309 and the arc plate 310 to move. When the arc plate 310 moves, it drives the application brush 311 to move. The application brush 311 evenly applies the lubricating oil to the outer wall of the oil distribution pipe 104 to ensure lubrication between the oil distribution pipe 104 and the outer pipe 103.

[0034] The spraying mechanism 4 is arranged on both sides of the T-shaped plate 304 . The spraying mechanism 4 includes a spray head 401 located on one side of the coating bristles 311 . Telescopic air bags 403 are arranged on both sides of the spray head 401 . The spraying mechanism 4 is used to spray lubricating oil on the outer wall of the oil distribution pipe 104 .

[0035] Specifically, Figure 1-Figure 9 As shown, a plurality of nozzles 401 are provided, and the plurality of nozzles 401 are respectively fixedly installed on the inner walls of the two arc-shaped plates 310 . A plurality of telescopic airbags 403 are provided, and lubricating oil is provided inside the telescopic airbags 403 . The plurality of nozzles 401 are respectively connected to the plurality of telescopic airbags 403 through hoses 402 .

[0036] In this embodiment, the telescopic airbag 403 is squeezed, and the lubricating oil is sprayed from the nozzle 401 to the oil distribution pipe 104 through the hose 402, so that the oil distribution pipe 104 and the outer pipe 103 are lubricated.

[0037] Specifically, Figure 1-Figure 9 As shown, oil inlet pipes 405 are respectively installed through the outer walls of the multiple telescopic airbags 403, and one-way valves are respectively fixedly installed on one end of the multiple oil inlet pipes 405 and the multiple hoses 402. Multiple mounting plates 404 are fixedly installed on the outer wall of the circular sleeve 306. The sides of the multiple mounting plates 404 are respectively fixedly connected to the outer walls of the multiple telescopic airbags 403, and the sides of the two T-shaped plates 304 are respectively in contact with the multiple telescopic airbags 403.

[0038] In this embodiment: the oil inlet pipe 405 is connected to the outer lubricating oil pipe, and a one-way valve is fixedly installed at one end of each of the multiple oil inlet pipes 405 and the multiple hoses 402, so that the lubricating oil inside the telescopic airbag 403 can only be discharged from the hose 402, and the lubricating oil enters from the oil inlet pipe 405, ensuring that the lubricating oil inside the telescopic airbag 403 can freely enter and be discharged.

[0039] The connecting mechanism 5 is arranged on one side of the oil distribution pipe 104 , and is used for installing and disassembling the oil distribution pipe 104 .

[0040] Specifically, Figure 1-Figure 13 As shown, a fixing seat 501 is fixedly installed on the side of the guide frame, a spring retainer 502 is movably installed on the inner wall of the fixing seat 501, a spring 503 is fixedly installed on the side of the spring retainer 502, and the other end of the spring 503 is fixedly connected to the side of the guide frame, two grooves 504 are provided on the side of the fixing seat 501, and two card grooves 505 are provided on the inner wall of the fixing seat 501, and two card blocks 506 are fixedly installed on the outer wall of the oil distribution pipe short shaft 112, and the two card blocks 506 are carded with the two card grooves 505.

[0041] In this embodiment, by means of the fixed seat 501, spring retainer 502, spring 503, slot body 504, slot 505 and block 506, the preload force overcomes the system resistance under normal working conditions, compresses the oil distribution pipe short shaft 112, and makes the whole oil distribution mechanism and the guide frame move axially synchronously; when repairing, it can be compressed to the shortest and can be easily removed.

[0042] The specific solution is as follows: the hydraulic oil in and out of the oil hole 105 and the oil hole 2 106 is adjusted, thereby driving the oil distribution pipe 104 to move and adjust the angle of the propeller. When the oil distribution pipe 104 moves, it drives the fixed sleeve 201 to move, and the fixed sleeve 201 drives the support rod 213 to rotate a certain angle. The support rod 213 drives the sleeve 205 and the connecting shaft 209 to rotate, and the connecting shaft 209 drives the pointer 210 to rotate. By observing the scale of the scale line 212 pointed by the pointer 210, the change of the propeller angle can be intuitively observed. It is more intuitive and convenient. When the oil distribution pipe 104 and the outer pipe 103 move relative to each other, the oil distribution pipe 104 drives the support rod 213 and the movable plate 206 to move, and the movable plate 206 drives the connecting rod 303 and the T-shaped plate 304 to move. The T-shaped plate 304 squeezes the telescopic airbag 403 on one side, and the lubricating oil inside the telescopic airbag 403 is squeezed and sprayed from the nozzle 401 to the outer wall of the oil distribution pipe 104 through the hose 402, thereby ensuring the lubrication between the oil distribution pipe 104 and the outer pipe 103. Each time the propeller angle is adjusted, the lubricating oil The oil will be sprayed to the oil distribution pipe 104. When the propeller angle is adjusted to make the oil distribution pipe 104 and the outer pipe 103 relatively displaced, the lubrication between the inner wall of the outer pipe 103 and the outer wall of the oil distribution pipe 104 is ensured, the wear between the two is reduced, and the service life of the whole device is improved. At the same time, when the T-shaped plate 304 moves, the T-shaped plate 304 drives the fixing rod 309 and the arc plate 310 to move, and the arc plate 310 drives the smearing bristles 311 to move, and the smearing bristles 311 evenly smear the lubricating oil on the outer wall of the oil distribution pipe 104, so that the oil distribution pipe 104 is smooth and lubricated. The pipe 104 and the outer pipe 103 are lubricated, the lubrication between the oil distribution pipe 104 and the outer pipe 103 is further improved, the wear between the oil distribution pipe 104 and the outer pipe 103 is reduced, and the service life of the entire device is further improved. When the adjustable pitch propeller adjusts the pitch of the blades, high-pressure hydraulic oil is injected into the A / B port. The hydraulic oil passes through the oil distribution ring 107, the oil distribution pipe 104, the connecting pipe 111, the oil distribution pipe short shaft 112, and finally enters the piston high-pressure oil chamber in the hub, pushing the piston to make axial displacement, thereby completing the variable pitch movement of the blades. The synchronous movement of the oil distribution pipe assembly and the piston connection is ensured by the preload of spring 503. The preload should be sufficient to overcome the friction generated by the axial displacement of the system and should be at least 50% greater than the friction of the system. When the sealing element of the oil distribution mechanism needs to be replaced, push the oil distribution pipe 104 from the outside until the spring 503 is compressed to the shortest and disengaged from the slot 505. At this time, rotate the oil distribution pipe 104 90° and rely on the elastic force of spring 503 to rebound and pull out the entire oil distribution mechanism. After replacing the sealing element, insert the oil distribution mechanism back into place and push the oil distribution pipe 104 until the spring 503 is compressed to the shortest. At this time, rotate the oil distribution pipe 104 90° and rely on the rebound of spring 503 to reset it to the slot 505, completing a maintenance and replacement operation.

[0043] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary; within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0044] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A propeller pitch control and oil distribution mechanism for a ship propeller, comprising: A housing (1), wherein an inspection cover (101) is fixedly mounted on the top surface of the housing (1) by means of bolts, an oil inlet (102) is provided through the right side surface of the housing (1), an outer tube (103) is rotatably mounted through the left side surface of the housing (1) via a bearing seat, and an oil distribution pipe (104) is movably mounted on the inner wall of the outer tube (103), characterized in that: An indicating mechanism (2), the indicating mechanism (2) being arranged inside the housing (1), the indicating mechanism (2) comprising a fixed sleeve (201) rotatably mounted on an outer wall of one end of the oil distribution pipe (104) via a second bearing seat, sleeves (205) being arranged on both sides of the fixed sleeve (201), a connecting shaft (209) being fixedly mounted on one end of the sleeve (205), and pointers (210) being fixedly mounted on outer walls at both ends of the connecting shaft (209), respectively, the indicating mechanism (2) being used to indicate a pitch adjustment angle of the propeller; A coating mechanism (3), the coating mechanism (3) being arranged on both sides of the oil distribution pipe (104), the coating mechanism (3) comprising a connecting rod (303) located on one side of the sleeve (205), one end of the connecting rod (303) being hingedly connected to a T-shaped plate (304), one side of the T-shaped plate (304) being provided with coating bristles (311), the coating mechanism (3) being used to evenly coat the lubricating oil on the outer wall of the oil distribution pipe (104); A spraying mechanism (4), the spraying mechanism (4) being arranged on both sides of the T-shaped plate (304), the spraying mechanism (4) comprising a spray head (401) located on one side of the coating bristles (311), telescopic air bags (403) being arranged on both sides of the spray head (401), the spraying mechanism (4) being used to spray lubricating oil onto the outer wall of the oil distribution pipe (104); A connecting mechanism (5), wherein the connecting mechanism (5) is arranged on one side of the oil distribution pipe (104), and the connecting mechanism (5) is used to install and remove the oil distribution pipe (104).

2. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 1, characterized in that: The inner wall of the oil distribution pipe (104) is provided with an oil hole 1 (105) and an oil hole 2 (106); an oil distribution ring (107) is installed on the outer wall of one end of the oil distribution pipe (104) via a tapered roller bearing (108); a T-shaped grid ring (109) is movably installed on the outer wall of the oil distribution pipe (104); the outer wall of the T-shaped grid ring (109) is fixedly connected to the inner wall of the outer pipe (103); a connecting pipe (111) is fixedly installed on one end of the oil distribution pipe (104) via an O-ring 3 (114); an oil distribution pipe stub shaft (112) is fixedly installed on one end of the connecting pipe (111) via an O-ring 1 (110); and an O-ring 2 (113) is fixedly installed on the outer wall of one end of the oil distribution pipe stub shaft (112).

3. The propeller pitch control and oil distribution mechanism for a ship propeller according to claim 1, characterized in that: The front and rear sides of the fixing sleeve (201) are respectively fixedly mounted with limiting rods (202); the distal ends of the two limiting rods (202) are respectively fixedly mounted with limiting plates (203); the front and rear sides of the housing (1) are respectively provided with T-shaped limiting grooves (204); the sides of the two limiting rods (202) and the sides of the two limiting plates (203) are respectively slidably connected to the inner walls of the two T-shaped limiting grooves (204).

4. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 3, characterized in that: The upper and lower sides of the fixed sleeve (201) are respectively hinged with support rods (213), and the other ends of the two support rods (213) respectively slide through the sides of the two sleeves (205) and extend into the interior of the sleeves (205). One ends of the two support rods (213) are respectively fixedly mounted with movable plates (206), and the outer walls of the two movable plates (206) are respectively slidably connected to the inner walls of the two sleeves (205).

5. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 4, characterized in that: An elastic member (207) is fixedly mounted on the inner wall at one end of each of the two sleeves (205); the other ends of the two elastic members (207) are fixedly connected to the bottom surfaces of the two movable plates (206); two support bars (208) are fixedly mounted on the left inner wall of the shell (1); and the outer wall of the connecting shaft (209) is rotatably connected to the inner wall of the support bar (208) via a third bearing seat.

6. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 5, characterized in that: The two connecting shafts (209) rotate through the front and rear inner walls of the shell (1) and extend to the outside of the shell (1). The front and rear side surfaces of the shell (1) are respectively fixedly mounted with circular frames (211), and the side surfaces of the circular frames (211) are fixedly mounted with a plurality of scale lines (212).

7. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 4, characterized in that: The two sleeves (205) are provided with moving grooves (301) on their sides, and the two moving plates (206) are provided with moving bars (302) fixedly mounted on their outer walls. The sides of the two moving bars (302) are slidably connected to the inner walls of the two moving grooves (301), and there are two connecting rods (303). The other ends of the two connecting rods (303) are hinged to one end of the two moving bars (302).

8. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 7, characterized in that: Two L-shaped plates (305) are fixedly mounted on the left inner wall of the shell (1); a circular sleeve (306) is fixedly mounted on the other end of the two L-shaped plates (305); the upper and lower sides of the circular sleeve (306) are respectively provided with a T-shaped groove (307); the inner walls of the two T-shaped grooves (307) are respectively slidably connected to the side surfaces of the two T-shaped plates (304); the inner walls of the two T-shaped grooves (307) are respectively provided with two through grooves (308); two fixing rods (309) are respectively fixedly mounted near the side surfaces of the two T-shaped plates (304); the other ends of the two fixing rods (309) are respectively fixedly mounted with an arc-shaped plate (310); and the inner walls of the two arc-shaped plates (310) are respectively fixedly mounted with a plurality of smear bristles (311).

9. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 8, characterized in that: A plurality of the spray heads (401) are provided, and the plurality of the spray heads (401) are respectively fixedly installed through the inner walls of the two arc-shaped plates (310). A plurality of the telescopic airbags (403) are provided, and the plurality of the spray heads (401) are respectively connected to the plurality of telescopic airbags (403) through the hoses (402). Oil inlet pipes (405) are respectively installed through the outer walls of the plurality of telescopic airbags (403). One-way valves are respectively fixedly installed at one end of the plurality of oil inlet pipes (405) and the plurality of hoses (402). A plurality of mounting plates (404) are fixedly installed on the outer wall of the circular sleeve (306). The side surfaces of the plurality of mounting plates (404) are respectively fixedly connected to the outer walls of the plurality of telescopic airbags (403). The side surfaces of the two T-shaped plates (304) are respectively in contact with the plurality of telescopic airbags (403).

10. A propeller pitch control and oil distribution mechanism for a ship propeller according to claim 2, characterized in that: A fixing seat (501) is fixedly mounted on the side of the guide frame, a spring retainer (502) is movably mounted on the inner wall of the fixing seat (501), a spring (503) is fixedly mounted on the side of the spring retainer (502), the other end of the spring (503) is fixedly connected to the side of the guide frame, two grooves (504) are provided on the side of the fixing seat (501), two clamping grooves (505) are provided on the inner wall of the fixing seat (501), and two clamping blocks (506) are fixedly mounted on the outer wall of the oil distribution pipe stub shaft (112), and the two clamping blocks (506) are clamped with the two clamping grooves (505).

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