Rotor structure of highly-sealed rotating vane type hydraulic steering engine

By designing a limiting groove and insert bolt connection, the hydraulic servo disassembly block can be replaced individually, which solves the problem of difficult replacement of worn contact parts in traditional hydraulic servos, reduces maintenance costs and extends the service life of the servo mechanism.

CN224197957UActive Publication Date: 2026-05-05NANJING NAUTICAL INSTR PLANT NO 2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING NAUTICAL INSTR PLANT NO 2
Filing Date
2025-05-20
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In traditional hydraulic steering gears, the contact parts of the rudder mechanism are difficult to replace individually when they are severely worn, resulting in high maintenance costs and long maintenance times.

Method used

A rotor structure for a high-sealing rotary vane hydraulic servo motor was designed. The individual replacement of the disassembly block is achieved through the connection of the limiting groove and the plug bolt, and a lubrication mechanism is provided to reduce friction and wear.

Benefits of technology

This allows for the individual replacement of the contact surface, reducing maintenance costs and time, while also extending the service life of the rudder mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic steering engines, and discloses a rotor structure of a highly-sealed rotating vane type hydraulic steering engine, which comprises a bottom plate and a rotor, the rotor is rotatably connected inside the bottom plate, two hydraulic plungers are mounted on the upper surface of the bottom plate, shifting fork rods are fixedly mounted on the outer surfaces of the output ends of the hydraulic plungers, and the shifting fork rods are fixedly connected with the bottom plate. Two sets of rudder plate mechanisms are fixedly installed on the outer surface of the rotor, the abutting ends of the two sets of rudder plate mechanisms abut against the shifting fork rod, a lubricating mechanism is installed on the outer surface of the rotor, and the lubricating ends of the lubricating mechanism are arranged above the rudder plate mechanisms. Through the arrangement of the rudder plate mechanism, the effect of independently replacing the abutting surface is achieved, and the use cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic servo motor technology, specifically the rotor structure of a high-sealing rotary vane hydraulic servo motor. Background Technology

[0002] A hydraulic steering gear is a device that uses the principle of hydraulic transmission to rotate the control surface of a ship or aircraft. It is one of the core components of the control system of ships and aircraft. It uses a hydraulic oil pump to provide power and a hydraulic cylinder to rotate the control surface, thereby controlling the course of the ship or aircraft. Its working principle is to drive the control surface by the flow and pressure change of hydraulic oil. It has the advantages of compact structure, high transmission efficiency and fast response speed.

[0003] In traditional hydraulic steering gears, when the contact parts in the rudder mechanism are severely worn, it is difficult to replace the contact surfaces individually due to the limitations of its structural design. This results in high maintenance costs and long maintenance times, leading to relatively high maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the issue of high-sealing rotary vane hydraulic servo motor rotor structure. This invention solves the problem in traditional hydraulic servo motors where, due to structural design limitations, it is difficult to replace individual contact surfaces when the contact components in the servo mechanism are severely worn. This results in high maintenance costs and long maintenance times, leading to relatively high maintenance costs.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a rotor structure for a high-sealing rotary vane hydraulic servo motor, comprising a base plate and a rotor. The rotor is rotatably connected inside the base plate. Two hydraulic plungers are mounted on the upper surface of the base plate. A shift fork is fixedly mounted on the outer surface of the output end of each hydraulic plunger. Two sets of servo plate mechanisms are fixedly mounted on the outer surface of the rotor. The abutting ends of the two sets of servo plate mechanisms abut against the shift fork. A lubrication mechanism is mounted on the outer surface of the rotor, and the lubrication end of the lubrication mechanism is located above the servo plate mechanism.

[0007] Furthermore, the rudder plate mechanism includes a rudder plate, which is fixedly installed on the outer surface of the rotor. Each rudder plate has a limiting groove on its upper surface, and the number of limiting grooves is fixed at three. One end of the rudder plate has a slot, and the number of slots is fixed at two. The two slots are internally connected to two sets of limiting grooves. A disassembly block is installed inside the rudder plate, and the interior of the disassembly block abuts against the shift fork. Three limiting blocks are fixedly installed on the outer surface of the disassembly block, and each limiting block is inserted into a limiting groove. Both sets of limiting blocks have positioning grooves inside.

[0008] Furthermore, each slot has a plug rod inserted inside, the plug rod extends into the limiting groove and is inserted into the positioning groove, and one end of each plug rod is threaded with a bolt, the bolt being threaded into the rudder plate.

[0009] Furthermore, the lubrication mechanism includes a mounting plate, which is fixedly mounted on the outer surface of the rotor. A pump is fixedly mounted on the upper surface of the mounting plate, and a connecting pipe is fixedly mounted on the output end of the pump. Two fixing plates are fixedly mounted on the outer surface of the rotor, and a flow divider is fixedly mounted between the two fixing plates. Two sets of output pipes are fixedly mounted on the upper surface of the flow divider, and an input pipe is fixedly mounted on the input end of the pump.

[0010] Furthermore, mounting blocks are symmetrically installed on the outer surface of the rotor, and nozzles are fixedly installed inside each mounting block. Two nozzles are respectively positioned above the two sets of rudder plate mechanisms, and the connecting ends of the two nozzles are respectively connected to one end of the two output pipes.

[0011] Furthermore, a storage box is fixedly installed on the upper surface of the base plate, and the storage box is connected to the input pipe.

[0012] This utility model has the following beneficial effects:

[0013] (1) When the contact surfaces of the disassembly block and the shift fork are severely worn, the bolts need to be unscrewed first. After the bolts are unscrewed, the fixing of the insert rod in the slot and the limiting groove is released. At this time, the insert rod can be pulled out from the slot and the limiting groove. After the insert rod is pulled out, since the limiting block is positioned by cooperating with the insert rod through the positioning groove, the lateral limiting of the limiting block in the limiting groove is released after the insert rod is pulled out. The disassembly block inside the rudder plate is connected to the rudder plate through the limiting block. After the limiting block is released, the disassembly block can be taken out from inside the rudder plate. Since the outer surface of the disassembly block is connected to the inside of the rudder plate through the insertion of the limiting block, after the disassembly block is taken out, the new disassembly block is placed inside the rudder plate. Then, by reversing the operation of the above-mentioned rudder plate mechanism, the new disassembly block is installed inside the rudder plate, and the replacement of the disassembly block can be completed, achieving the effect of replacing the contact surface separately, thus reducing the cost of use.

[0014] (2) When the shift fork and rudder plate mechanism need lubrication, the pump is started and the lubricant in the storage tank enters the pump through the input pipe. The pump pumps the lubricant into the distribution box through the connecting pipe. The distribution box delivers the lubricant to two nozzles through two sets of output pipes. The nozzles are set above the rudder plate mechanism, so as to lubricate the rudder plate mechanism, thereby helping to reduce the friction of the rudder plate mechanism during operation, reduce wear, and extend the service life of the rudder plate mechanism.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. 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 overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of the rudder plate mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of part of the structure of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged schematic diagram of structure A in the image;

[0021] The attached diagram lists the components represented by each number as follows:

[0022] In the diagram: 1. Base plate; 2. Rotor; 3. Rudder plate mechanism; 301. Rudder plate; 302. Limiting groove; 303. Slot; 304. Disassembly block; 305. Limiting block; 306. Positioning groove; 307. Insert rod; 308. Bolt; 4. Hydraulic plunger; 5. Shift fork rod; 6. Lubrication mechanism; 601. Mounting plate; 602. Pump; 603. Connecting pipe; 604. Fixing plate; 605. Diverter box; 606. Output pipe; 607. Mounting block; 608. Nozzle; 609. Input pipe; 610. Storage box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4As shown, this utility model is a rotor structure of a high-sealing rotary vane hydraulic servo motor, including a base plate 1 and a rotor 2. The rotor 2 is rotatably connected inside the base plate 1. Two hydraulic plungers 4 are installed on the upper surface of the base plate 1. A shift fork rod 5 is fixedly installed on the outer surface of the output end of each hydraulic plunger 4. Two sets of servo plate mechanisms 3 are fixedly installed on the outer surface of the rotor 2. The abutting ends of the two sets of servo plate mechanisms 3 abut against the shift fork rod 5. A lubrication mechanism 6 is installed on the outer surface of the rotor 2. The lubrication end of the lubrication mechanism 6 is located above the servo plate mechanism 3.

[0025] When the hydraulic plunger 4 is working, the shift fork 5 on the outer surface of its output end will push the rudder plate mechanism 3. The rudder plate 301 in the rudder plate mechanism 3 is fixed on the outer surface of the rotor 2, and the shift fork 5 abuts against the disassembly block 304, thereby driving the rotor 2 to rotate, thus completing the hull steering operation;

[0026] The rudder plate mechanism 3 includes a rudder plate 301, which is fixedly installed on the outer surface of the rotor 2. Each upper surface of the rudder plate 301 has a limiting groove 302, and the number of limiting grooves 302 is fixed to three. One end of the rudder plate 301 has a slot 303, and the number of slots 303 is fixed to two. The two slots 303 are connected to the interior of two sets of limiting grooves 302. A disassembly block 304 is installed inside the rudder plate 301. The interior of the disassembly block 304 abuts against the shift fork 5. A limiting block 305 is fixedly installed on the outer surface of the disassembly block 304, and the number of limiting blocks 305 is fixed to three. Each limiting block 305 is inserted into the limiting groove 302, and the interior of each set of limiting blocks 305 has a positioning groove 306.

[0027] Insert rods 307 are inserted into the slots 303. The insert rods 307 extend into the limiting slots 302 and are inserted into the positioning slots 306. One end of each insert rod 307 is threaded with a bolt 308. The bolts 308 are threaded into the rudder plate 301.

[0028] When the contact surfaces of the disassembly block 304 and the shift fork 5 are severely worn, the bolt 308 must first be unscrewed. After unscrewing the bolt 308, the fixing of the insertion rod 307 in the slot 303 and the limiting groove 302 is released. At this time, the insertion rod 307 can be pulled out from the slot 303 and the limiting groove 302. After the insertion rod 307 is pulled out, since the limiting block 305 is positioned by cooperating with the insertion rod 307 through the positioning groove 306, the lateral limiting of the limiting block 305 in the limiting groove 302 is released after the insertion rod 307 is pulled out. The disassembly block 304 inside the rudder plate 301 is then released by the limiting block 304. 5. Connected to the rudder plate 301, the limiting block 305 is released, allowing the disassembly block 304 to be removed from the rudder plate 301. This is because the outer surface of the disassembly block 304 is connected to the interior of the rudder plate 301 via the insertion of the limiting block 305. After removing the disassembly block 304, a new disassembly block 304 is placed inside the rudder plate 301. Then, by reversing the operation of the rudder plate mechanism 3, the new disassembly block 304 is installed inside the rudder plate 301, thus completing the replacement of the disassembly block 304 and achieving the effect of replacing the contact surface individually, reducing usage costs.

[0029] The lubrication mechanism 6 includes a mounting plate 601, which is fixedly mounted on the outer surface of the rotor 2. A pump 602 is fixedly mounted on the upper surface of the mounting plate 601. A connecting pipe 603 is fixedly mounted on the output end of the pump 602. Two fixing plates 604 are fixedly mounted on the outer surface of the rotor 2. A flow divider 605 is fixedly mounted between the two fixing plates 604. Two sets of output pipes 606 are fixedly mounted on the upper surface of the flow divider 605. An input pipe 609 is fixedly mounted on the input end of the pump 602.

[0030] Mounting blocks 607 are symmetrically mounted on the outer surface of rotor 2. Nozzles 608 are fixedly mounted inside each mounting block 607. Two nozzles 608 are respectively positioned above the two sets of rudder plate mechanisms 3. The connecting ends of the two nozzles 608 are respectively connected to one end of the two output pipes 606.

[0031] A storage box 610 is fixedly installed on the upper surface of the base plate 1, and the storage box 610 is connected to the input pipe 609;

[0032] When the shift fork lever 5 and the rudder plate mechanism 3 require lubrication, the pump 602 is started. The lubricant in the storage tank 610 enters the pump 602 through the input pipe 609. The pump 602 pumps the lubricant into the distribution box 605 through the connecting pipe 603. The distribution box 605 delivers the lubricant to two nozzles 608 through two sets of output pipes 606. The nozzles 608 are located above the rudder plate mechanism 3, thereby lubricating the rudder plate mechanism 3, which helps to reduce friction and wear during operation and extend the service life of the rudder plate mechanism 3.

[0033] When in use, when the hydraulic plunger 4 is working, the fork rod 5 on the outer surface of its output end will push the rudder plate mechanism 3. The rudder plate 301 in the rudder plate mechanism 3 is fixed on the outer surface of the rotor 2, and the fork rod 5 abuts against the disassembly block 304, thereby driving the rotor 2 to rotate, which can complete the hull steering operation.

[0034] When the shift fork lever 5 and the rudder plate mechanism 3 require lubrication, the pump 602 is started. The lubricant in the storage tank 610 enters the pump 602 through the input pipe 609. The pump 602 pumps the lubricant into the distribution box 605 through the connecting pipe 603. The distribution box 605 delivers the lubricant to two nozzles 608 through two sets of output pipes 606. The nozzles 608 are located above the rudder plate mechanism 3, thereby lubricating the rudder plate mechanism 3, which helps to reduce friction and wear during operation and extend the service life of the rudder plate mechanism 3.

[0035] When the contact surfaces of the disassembly block 304 and the shift fork 5 are severely worn, the bolt 308 must first be unscrewed. After unscrewing the bolt 308, the fixing of the insertion rod 307 in the slot 303 and the limiting groove 302 is released. At this time, the insertion rod 307 can be pulled out from the slot 303 and the limiting groove 302. After the insertion rod 307 is pulled out, since the limiting block 305 is positioned by cooperating with the insertion rod 307 through the positioning groove 306, the lateral limiting of the limiting block 305 in the limiting groove 302 is released after the insertion rod 307 is pulled out. The disassembly block 304 inside the rudder plate 301 is then released by the limiting block 304. 5. When connected to the rudder plate 301, the limiting block 305 is released, and the disassembly block 304 can be removed from the inside of the rudder plate 301. This is because the outer surface of the disassembly block 304 is connected to the inside of the rudder plate 301 through the insertion of the limiting block 305. After the disassembly block 304 is removed, a new disassembly block 304 is placed into the inside of the rudder plate 301. Then, by reversing the operation of the rudder plate mechanism 3, the new disassembly block 304 is installed inside the rudder plate 301, thus completing the replacement of the disassembly block 304 and achieving the effect of replacing the contact surface separately, thereby reducing the cost of use.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rotor structure for a high-sealing rotary vane hydraulic servo motor, comprising a base plate (1) and a rotor (2), wherein the rotor (2) is rotatably connected inside the base plate (1), and two hydraulic plungers (4) are mounted on the upper surface of the base plate (1), and a shift fork rod (5) is fixedly mounted on the outer surface of the output end of each hydraulic plunger (4), characterized in that: Two sets of rudder plate mechanisms (3) are fixedly installed on the outer surface of the rotor (2). The abutting ends of the two sets of rudder plate mechanisms (3) abut against the shift fork rod (5). A lubrication mechanism (6) is installed on the outer surface of the rotor (2). The lubrication end of the lubrication mechanism (6) is located above the rudder plate mechanism (3).

2. The rotor structure of the high-sealing rotary vane hydraulic steering gear according to claim 1, characterized in that: The rudder mechanism (3) includes a rudder plate (301), which is fixedly installed on the outer surface of the rotor (2). The upper surface of the rudder plate (301) is provided with a limiting groove (302), and the number of limiting grooves (302) is fixed to three. One end of the rudder plate (301) is provided with a slot (303), and the number of slots (303) is fixed to two. The two slots (303) are connected to the interior of two sets of limiting grooves (302). A disassembly block (304) is installed inside the rudder plate (301). The interior of the disassembly block (304) abuts against the shift fork (5). A limiting block (305) is fixedly installed on the outer surface of the disassembly block (304), and the number of limiting blocks (305) is fixed to three. The limiting blocks (305) are all inserted into the limiting grooves (302). The interior of the two sets of limiting blocks (305) is provided with a positioning groove (306).

3. The rotor structure of the high-sealing rotary vane hydraulic servo motor according to claim 2, characterized in that: Each slot (303) has a rod (307) inserted inside. The rod (307) extends into the limiting groove (302) and is inserted into the positioning groove (306). One end of each rod (307) is threaded with a bolt (308), and the bolt (308) is threaded into the rudder plate (301).

4. The rotor structure of the high-sealing rotary vane hydraulic steering gear according to claim 1, characterized in that: The lubrication mechanism (6) includes a mounting plate (601), which is fixedly mounted on the outer surface of the rotor (2). A pump (602) is fixedly mounted on the upper surface of the mounting plate (601). A connecting pipe (603) is fixedly mounted on the output end of the pump (602). Two fixing plates (604) are fixedly mounted on the outer surface of the rotor (2). A flow divider box (605) is fixedly mounted between the two fixing plates (604). Two sets of output pipes (606) are fixedly mounted on the upper surface of the flow divider box (605). An input pipe (609) is fixedly mounted on the input end of the pump (602).

5. The rotor structure of the high-sealing rotary vane hydraulic servo motor according to claim 1, characterized in that: The outer surface of the rotor (2) is symmetrically equipped with mounting blocks (607), and each mounting block (607) is fixedly equipped with a nozzle (608). The two nozzles (608) are respectively located above the two sets of rudder plate mechanisms (3), and the connection ends of the two nozzles (608) are respectively connected to one end of the two output pipes (606).

6. The rotor structure of the high-sealing rotary vane hydraulic steering gear according to claim 1, characterized in that: A storage box (610) is fixedly installed on the upper surface of the base plate (1), and the storage box (610) is connected to the input pipe (609).