Oil distribution slip ring feedback device for adjustable pitch propeller

Abstract

The application discloses a kind of oil distribution slip ring feedback devices suitable for adjustable pitch rudder propeller, including dynamic ring, fixed ring, first guide rod fixed on dynamic ring, second guide rod fixed on fixed ring, inner ring set on the first guide rod, outer ring set on the second guide rod and first bearing arranged between the inner ring and outer ring, the axis of the dynamic ring and fixed ring coincides, the dynamic ring is set in the fixed ring and can rotate along its axis, the dynamic ring is fixedly connected with the steering tube of adjustable pitch rudder propeller, one end of the inner ring is fixed with push-pull rod, and the outer ring is fixed with feedback rod.The oil distribution slip ring feedback device of the application can realize "rotary oil distribution" and "pitch feedback" simultaneously;It has compact structure, can be a module alone, is easy to install, and is suitable for most rudder propeller product structures.

Description

Technical Field

[0001] The present invention specifically relates to an oil distribution slip ring feedback device suitable for adjustable pitch rudder propellers. Background Technology

[0002] While adjustable pitch azimuth propellers exist in the existing technology, there is currently no corresponding slip ring feedback device that can simultaneously achieve "rotational oil distribution" and "pitch feedback". Summary of the Invention

[0003] In view of this, the present invention provides an oil distribution slip ring feedback device that can simultaneously realize "rotational oil distribution" and "pitch feedback".

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An oil distribution slip ring feedback device for an adjustable pitch rudder propeller includes a rotating ring, a fixed ring, a first guide rod fixed on the rotating ring, a second guide rod fixed on the fixed ring, an inner ring sleeved on the first guide rod, an outer ring sleeved on the second guide rod, and a first bearing disposed between the inner and outer rings. The axis lines of the rotating ring and the fixed ring coincide. The rotating ring is sleeved inside the fixed ring and can rotate along its axis on the fixed ring. The rotating ring is fixedly connected to the rudder tube of the adjustable pitch rudder propeller. The inner ring is fixed to one end of a push-pull rod, and the outer ring is fixed to a feedback rod. The first bearing is a ball bearing.

[0006] According to some preferred embodiments of the present invention, a second bearing is provided between the inner ring and the first guide rod, the second bearing being used to allow the inner ring to slide up and down along the first guide rod under the action of the push-pull rod. The second bearing is a linear bearing.

[0007] According to some preferred embodiments of the present invention, the inner ring is provided with a first mounting hole for fixing the second bearing, the second bearing is fixed in the first mounting hole, and the inner ring is fixed to the outside of the second bearing.

[0008] According to some preferred embodiments of the present invention, the length of the second bearing is greater than the thickness of the inner ring, and the upper and lower surfaces of the inner ring are provided with first retaining plates. A first retaining groove is formed on the outer wall of the second bearing, and the inner side of the first retaining plate engages with the first retaining groove to fix the second bearing to the inner ring.

[0009] According to some preferred embodiments of the present invention, the outer ring extends outward to form an extension plate, the extension plate and the outer ring are located on the same horizontal plane, and the second guide rod passes through the extension plate.

[0010] According to some preferred embodiments of the present invention, a sliding sleeve is fitted on the second guide rod, the sliding sleeve is fixed to the outer ring, the sliding sleeve includes a limiting part and a guiding part, the limiting part is located on the upper surface of the outer ring, a second slot is provided at the bottom of the guiding part, a second locking plate is provided on the lower surface of the outer ring, and the inner side of the second locking plate cooperates with the second slot to lock the sliding sleeve to the inner ring.

[0011] According to some preferred embodiments of the present invention, the inner ring is fixed to the inner ring of the first bearing, the outer ring is fixed to the outer ring of the first bearing, and the inner ring and the outer ring can rotate independently through the first bearing.

[0012] According to some preferred embodiments of the present invention, a first oil cavity and a second oil cavity are provided between the moving ring and the fixed ring, a first connecting hole and a second connecting hole penetrating the wall thickness are provided on the fixed ring, a first channel and a second channel are provided in the moving ring, the first connecting hole and the first channel are connected to the first oil cavity, and the second connecting hole and the second channel are connected to the second oil cavity.

[0013] According to some preferred embodiments of the present invention, a plurality of sealing rings are provided between the moving ring and the fixed ring, and the sealing rings are provided on both sides of the oil cavity.

[0014] According to some preferred embodiments of the present invention, the first guide rod and the second guide rod extend in the same direction.

[0015] Compared with the prior art, the advantages of the present invention are: the oil distribution slip ring feedback device of the present invention can simultaneously realize "rotational oil distribution" and "pitch feedback"; it has a compact structure, can be formed as a separate module, is easy to install, and is suitable for most propeller product structures. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the oil-lubricated slip ring feedback device in a preferred embodiment of the present invention;

[0018] Figure 2 for Figure 1 Enlarged view of part A in the image;

[0019] Figure 3 This is a schematic diagram showing the inner and outer rings of an oil-lubricated slip ring feedback device moving up and down under the action of a push-pull rod.

[0020] Figure 4 A schematic diagram showing the mutual rotation between the inner ring and the moving ring, and the outer ring and the fixed ring in an oil-lubricated slip ring feedback device;

[0021] Figure 5 This is a three-dimensional structural diagram of the fixed ring and the moving ring in a preferred embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the dynamic ring structure in a preferred embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional schematic diagram of the first channel in the moving ring in a preferred embodiment of the present invention;

[0024] Figure 8 This is a cross-sectional schematic diagram of the second channel in the moving ring in a preferred embodiment of the present invention;

[0025] Wherein: 1-Dynamic ring; 2-Fixed ring; 3-First guide rod; 4-Second guide rod; 5-Second bearing; 6-Inner ring; 7-Outer ring; 8-First bearing; 9-Push-pull rod; 10-Feedback rod; 11-Sealing ring; 12-First clamping plate; 13-Sliding sleeve; 131-Limiting part; 132-Guide part; 14-First oil cavity; 15-Second oil cavity; 16-First connecting hole; 17-Second connecting hole; 18-First channel; 19-Second channel; 20-Second clamping plate; 21-Third clamping plate; 22-Boss; 23-Extension plate; 24-Third slot. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] like Figure 1-8 As shown, the oil distribution slip ring feedback device for adjustable pitch rudder propellers in this embodiment includes a moving ring 1, a fixed ring 2, a first guide rod 3 fixed on the moving ring 1, a second guide rod 4 fixed on the fixed ring 2, an inner ring 6 sleeved on the first guide rod 3, an outer ring 7 sleeved on the second guide rod 4, and a first bearing 8 disposed between the inner ring 6 and the outer ring 7. The length extension directions of the first guide rod 3 and the second guide rod 4 are the same.

[0028] A receiving ring is provided on the upper part of the inner wall of the moving ring 1. The outer diameter of the inner ring 6 is smaller than the outer diameter of the receiving ring, and the inner ring 6 can be accommodated in the receiving ring. A stepped part is provided below the receiving ring, and three first guide rods 3 are evenly spaced on the stepped part.

[0029] In this embodiment, one portion of the outer ring 7 extends horizontally outward to form an extension plate 23. The extension plate 23 and the outer ring 7 are located on the same horizontal plane. The second guide rod 4 passes through the extension plate 23. The outer ring 7 is fixed to the lower end of the feedback rod 10, and the inner ring 6 is fixed to the upper end of the push-pull rod 9. The inner ring 6 is fixed to the inner ring of the first bearing 8, and the outer ring 7 is fixed to the outer ring of the first bearing 8. The inner ring 6 and the outer ring 7 can rotate independently through the first bearing 8. The first bearing 8 is a ball bearing.

[0030] The axes of the moving ring 1 and the fixed ring 2 coincide. The moving ring 1 is fitted inside the fixed ring 2 and can rotate along its axis on the fixed ring 2. The moving ring 1 is fixedly connected to the rudder tube of the adjustable pitch propeller. A second bearing 5 is provided between the inner ring 6 and the first guide rod 3. The second bearing 5 is used to allow the inner ring 6 to slide up and down along the first guide rod 3 under the action of the push-pull rod 9. The second bearing 5 is a linear bearing.

[0031] like Figure 2 As shown, specifically, the inner ring 6 has a first mounting hole for fixing the second bearing 5. The second bearing 5 is fixed in the first mounting hole, and the inner ring 6 is fixed to the outside of the second bearing 5. The length of the second bearing 5 is greater than the thickness of the inner ring 6. The upper and lower surfaces of the inner ring 6 are provided with first retaining plates 12. The outer wall of the second bearing 5 has a first retaining groove. The inner side of the first retaining plate 12 engages with the first retaining groove to fix the second bearing 5 to the inner ring 6.

[0032] like Figure 2 As shown, a sliding sleeve 13 is fitted onto the second guide rod 4. The sliding sleeve 13 is fixed to the outer ring 7. The sliding sleeve 13 includes a limiting part 131 and a guiding part 132. The size of the limiting part 131 is larger than the size of the guiding part 132. The limiting part 131 is located on the upper surface of the outer ring 7. A second slot is provided at the bottom of the guiding part 132. A second locking plate 20 is provided on the lower surface of the outer ring 7. The inner side of the second locking plate 20 engages with the second slot to fix the sliding sleeve 13 to the inner ring 6.

[0033] like Figure 1 and 5 As shown in Figure -8, a first oil cavity 14 and a second oil cavity 15 are provided between the moving ring 1 and the fixed ring 2. The fixed ring 2 has a first connecting hole 16 and a second connecting hole 17 that penetrate its wall thickness. The moving ring 1 has a first channel 18 and a second channel 19. The first connecting hole 16 and the first channel 18 communicate with the first oil cavity 14, and the second connecting hole 17 and the second channel 19 communicate with the second oil cavity 15, thus achieving oil circuit communication. Correspondingly, multiple sealing rings 11 are provided between the moving ring 1 and the fixed ring 2. Sealing rings 11 are provided on both sides of the oil cavity, preferably rotating Glyd rings. That is, in this embodiment, the oil distributor moving ring 1 and the oil distributor fixed ring 2 are equipped with three seals. The first oil cavity 14 is formed between the first seal and the second seal, and the second oil cavity 15 is formed between the second seal and the third seal.

[0034] In this embodiment, as Figure 1 and 3 As shown in Figure 8, the height of the moving ring 1 is greater than the height of the fixed ring 2. The bottom of the moving ring 1 extends outward to form a boss 22. A third slot 24 is provided on the top of the moving ring 1. A matching third slot 21 is provided on the third slot 24. The fixed ring 2 is located between the third slot 21 and the boss 22, which effectively prevents the fixed ring 2 from coming off when rotating and maintains stable rotation.

[0035] The slip ring feedback mechanism is installed above the rudder tube of the adjustable pitch rudder propeller, mainly performing the functions of rotational slip ring distribution and pitch feedback. Its basic operating principle is as follows: The moving ring 1 of the slip ring is fixed to the rudder tube with screws. Three first guide rods 3 are fixed on the moving ring 1. Three first mounting holes are opened on the inner ring 6. The first guide rods 3 pass through the first mounting holes, fixing the inner ring 6, the first guide rods 3, and the moving ring 1, and causing them to rotate together with the rudder. The outer ring 7 is inserted into the corresponding pin hole of the fixed ring 2 of the slip ring through the second guide rod 4 to prevent the outer ring 7 from rotating, but it can move up and down along the second guide rod 4.

[0036] Meanwhile, linear bearings are installed in the first mounting holes, and the linear bearings are sleeved on the first guide rod 3, so that the inner ring 6 can slide up and down along the first guide rod 3 under the action of the push-pull rod 9.

[0037] The inner ring 6 and the outer ring 7 are connected by a thin-walled ball bearing. The inner ring 6 and the outer ring 7 can rotate independently. When the inner ring 6 rotates with the moving ring 1, the outer ring 7 can remain stationary. At the same time, since both the inner ring 6 and the outer ring 7 are connected to the thin-walled ball bearing, when the inner ring 6 slides up and down along the first guide rod 3 under the action of the push-pull rod 9, the outer ring 7 also moves accordingly, ultimately transmitting the action value to the feedback rod 10.

[0038] The following is a brief description of the working process of the oil distribution slip ring feedback device in this embodiment:

[0039] When the propeller rotates, the rudder tube and the moving ring 1 always rotate. Driven by the first guide rod 3, the inner ring 6 rotates synchronously, while the outer ring 7 and the extension plate 23 remain stationary with respect to the fixed ring 2, fixed by the second guide rod 4. Furthermore, because a ball bearing is installed between the inner ring 6 and the outer ring 7, the inner ring 6 rotates while the outer ring 7 remains stationary. Figure 4 As shown. Figure 4 In the diagram, the middle dashed box represents the rotating part, while the dashed boxes on either side represent the stationary part.

[0040] When the vehicle is accelerating, the first oil chamber 14 fills with oil, and the second oil chamber 15 returns oil. The push-pull rod 9 drives the feedback rod 10 to move downwards, providing feedback on the forward driving signal. When the vehicle is reversing and accelerating, the opposite occurs. When the push-pull rod 9 moves up and down, it pulls the inner ring 6 up and down. Since both the inner ring 6 and the outer ring 7 are fixed to the ball bearing, the inner ring 6 rotates while the outer ring 7 remains stationary. Furthermore, with the cooperation of the first guide rod 3 and the linear bearing, and the second guide rod 4 and the sliding sleeve 13, the up-and-down movement of the inner ring 6 drives the outer ring 7 to move up and down synchronously, thereby transmitting the action value to the feedback rod 10.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A slip ring feedback device for an adjustable pitch rudder propeller, characterized in that, It includes a moving ring, a fixed ring, a first guide rod fixed on the moving ring, a second guide rod fixed on the fixed ring, an inner ring sleeved on the first guide rod, an outer ring sleeved on the second guide rod, and a first bearing disposed between the inner ring and the outer ring. The axis lines of the moving ring and the fixed ring coincide. The moving ring is sleeved inside the fixed ring and can rotate along its axis line on the fixed ring. The moving ring is fixedly connected to the rudder tube of the adjustable pitch propeller. The inner ring is fixed to the push-pull rod, and the outer ring is fixed to the feedback rod. A second bearing is provided between the inner ring and the first guide rod. The second bearing is used to allow the inner ring to move up and down along the first guide rod under the drive of the push-pull rod. The outer ring extends horizontally outward to form an extension plate, and the second guide rod passes through the extension plate; a sliding sleeve is fitted on the second guide rod, and the sliding sleeve is fixed to the outer ring. The sliding sleeve includes a limiting part and a guiding part. The limiting part is located on the upper surface of the outer ring, and a second slot is provided at the bottom of the guiding part. A second locking plate is provided on the lower surface of the outer ring, and the inner side of the second locking plate cooperates with the second slot to lock the sliding sleeve to the outer ring. A first oil cavity and a second oil cavity are provided between the moving ring and the fixed ring. The fixed ring has a first connecting hole and a second connecting hole that penetrate its wall thickness. The moving ring has a first channel and a second channel. The first connecting hole and the first channel are connected to the first oil cavity, and the second connecting hole and the second channel are connected to the second oil cavity.

2. The oil distribution slip ring feedback device according to claim 1, characterized in that, The inner ring has a first mounting hole for fixing the second bearing. The second bearing is fixed in the first mounting hole, and the inner ring is fixed to the outside of the second bearing.

3. The oil distribution slip ring feedback device according to claim 1, characterized in that, The length of the second bearing is greater than the thickness of the inner ring. The upper and lower surfaces of the inner ring are provided with first retaining plates. The outer wall of the second bearing is provided with a first retaining groove. The inner side of the first retaining plate engages with the first retaining groove to fix the second bearing to the inner ring.

4. The oil distribution slip ring feedback device according to claim 1, characterized in that, The inner ring is fixed to the inner ring of the first bearing, and the outer ring is fixed to the outer ring of the first bearing.

5. The oil distribution slip ring feedback device according to claim 1, characterized in that, Multiple sealing rings are provided between the moving ring and the fixed ring, and the sealing rings are provided on both sides of the oil cavity.

6. The oil distribution slip ring feedback device according to any one of claims 1-5, characterized in that, The first guide rod and the second guide rod extend in the same direction.

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