Rotary vane type steering engine cylinder body structure

Abstract

The invention discloses a rotating vane type steering engine cylinder body structure, and belongs to the technical field of engineering machinery, the rotating vane type steering engine cylinder body structure comprises an upper cylinder cover, a cylinder body and a lower cylinder cover, the upper cylinder cover is arranged at the upper end of the cylinder body, the lower cylinder cover is arranged at the lower end of the cylinder body, a lining is arranged on the top wall of the upper cylinder cover, a thrust bearing is rotatably connected in the lining, and the thrust bearing is arranged in the cylinder body. A plane bearing is arranged between the lower cylinder cover and the cylinder body, and a temporary storage assembly used for maintaining the position of the lower cylinder cover is arranged between the side wall of the cylinder body and the lower cylinder cover. The cylinder body with the sealed bottom originally is designed to be the cylinder body with the lower cylinder cover arranged outside the cylinder body, so that when the bottom of the cylinder body breaks down, a worker can directly detach the lower cylinder cover for replacement, and convenience is provided for repair.

Description

Technical Field

[0001] The invention relates to a rotary vane steering gear, in particular to a cylinder structure of the rotary vane steering gear, and belongs to the technical field of ship engineering machinery. Background Art

[0002] The rotary vane steering gear is a common type of marine steering gear. The basic working principle is to use pressurized oil in the swing cylinder to push the rotary vane to swing, thereby driving the rudder to rotate. The rotary vane steering gear body usually includes: cylinder body, cylinder head, rotor, stator blades and other structures. The cylinder head is fixed on the top of the cylinder body, and the rotor, stator blades and other structures are arranged inside the cylinder body. The entire cylinder body is designed with an open top and a closed bottom. Therefore, under this cylinder structure, if there is a problem with the bottom components of the cylinder body, it is more difficult to repair the components at the bottom of the cylinder body without dismantling the entire steering gear. Summary of the invention

[0003] The purpose of the present invention is to provide a split rotary vane steering gear cylinder structure which has a reasonable structure, is easy to use and can be easily repaired later, in view of the defects existing in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a rotary vane steering gear cylinder structure, comprising an upper cylinder head, a cylinder body and a lower cylinder head, the upper cylinder head is installed at the upper end of the cylinder body, the lower cylinder head is installed at the lower end of the cylinder body, a bushing is installed on the top wall of the upper cylinder head, a thrust bearing is rotatably connected inside the bushing, a plane bearing is arranged between the lower cylinder head and the cylinder body, and a temporary storage component for maintaining the position of the lower cylinder head is arranged between the side wall of the cylinder body and the lower cylinder head.

[0005] Preferably, a mounting surface is fixedly connected to the side wall at the middle position of the cylinder, and a plurality of fixing holes are formed on the side wall of the mounting surface.

[0006] Preferably, the diameters of the upper cylinder head and the lower cylinder head are consistent, and the outer diameter of the barrel is also consistent with the diameter of the lower cylinder head.

[0007] Preferably, the temporary storage assembly includes a disc and two supporting rods, the disc is fixedly connected to the side wall of the lower cylinder head, the diameter of the disc is larger than the diameter of the lower cylinder head, the side wall of the disc is provided with two through grooves, the two supporting rods are respectively fixedly connected to both sides of the cylinder body, the longitudinal section of the supporting rod is "U"-shaped, the opening direction of the supporting rod is facing the cylinder body, the side wall of the supporting rod away from the cylinder body is slidably connected to the bottom wall of the disc, and the width of the supporting rod is consistent with the width of the through groove.

[0008] Preferably, a groove is formed on the side wall of one end of the support rod away from the cylinder body, and a plurality of rollers are rotatably connected in the groove, and each of the rollers is in contact with the bottom wall of the disc.

[0009] Preferably, the angle between the two through slots is 180°, and the angle between the two support rods is also 180°.

[0010] In summary, the technical effects and advantages of the present invention are as follows: This design optimizes the cylinder structure and adds a lower cylinder head, making the cylinder barrel structure simpler. The original cylinder structure cannot repair the components at the bottom of the cylinder without removing the entire servo. The new structure adopts a split structure design, combining the middle cylinder and the lower cylinder head. In the event of oil leakage at the lower end, the lower cylinder head can be directly removed for replacement. The innovative structural design provides convenience for subsequent repairs. At the same time, a temporary storage component is set between the cylinder and the lower cylinder head to facilitate the temporary storage of the lower cylinder head on the support rod when installing the lower cylinder head, thereby facilitating the staff to install the lower cylinder head. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Figure 1 A schematic diagram for reflecting the structure of a rotor in the existing related technology; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a stereogram of the present invention.

[0013] Description of the drawings: 1-upper cylinder cover; 2-cylinder body; 3-lower cylinder cover; 4-bushing; 5-thrust bearing; 6-plane bearing; 7-mounting surface; 8-fixing hole; 9-disc; 10-support rod; 11-through groove; 12-groove; 13-roller. DETAILED DESCRIPTION

[0014] This embodiment proposes a rotary vane steering gear cylinder structure, and its structure is as follows: Figures 1 to 3 As shown, it includes an upper cylinder head 1, a cylinder body 2 and a lower cylinder head 3. The upper cylinder head 1 is arranged at the upper end of the cylinder body 2, and the lower cylinder head 3 is arranged at the lower end of the cylinder body 2. The diameters of the upper cylinder head 1 and the lower cylinder head 3 are consistent, and the outer diameter of the cylinder body 2 is also consistent with the diameter of the lower cylinder head 3. Common components of a rotary vane steering gear such as a rotor and stationary blades are arranged inside the cylinder body 2. Since they do not involve the innovative part of the present application, they are not described in detail. The rotor is rotatably connected to the rudder stock deep in the cylinder body 2 and is arranged in the cylinder body 2. The stationary blades are connected to the inside of the cylinder body 2 by bolts and pins. The limit position of the rotary vane steering gear can be limited by the rotor and the stationary blades, and the lower seal and bearing of the original cylinder body are all cancelled and replaced by the lower cylinder head 3 in this application. Therefore, when there is a problem at the bottom of the cylinder body, the staff can directly remove the lower cylinder head 3 for maintenance, or directly replace it.

[0015] At the same time, the cylinder 2 is changed from the original bottom sealing type containing the lower bushing and thrust bearing to a simple cylindrical shape, and both the upper and lower ends are open designs, which greatly reduces the difficulty of casting and processing, and can effectively reduce the overall production cost of the steering gear.

[0016] A mounting surface 7 is fixedly connected to the side wall in the middle of the cylinder body 2, and a plurality of fixing holes 8 are provided on the side wall of the mounting surface 7. The mounting surface 7 between the entire steering gear and the shipyard is improved from the cylinder body ground plane to the middle of the cylinder body 2, which provides a larger space for maintenance and makes it more convenient for the staff to disassemble and assemble the lower cylinder head 3.

[0017] A bushing 4 is installed on the top wall of the upper cylinder cover 1, and a thrust bearing 5 is rotatably connected inside the bushing 4. A plane bearing 6 is arranged between the lower cylinder cover 3 and the cylinder body 2. The bushing 4 and the plane bearing 6 respectively support and resist wear for the upper cylinder cover 1 and the lower cylinder cover 3. At the same time, the thrust bearing 5 can resist the axial movement of the rudder rod that passes through the upper cylinder cover 1 and penetrates into the cylinder body 2, thereby ensuring the smooth operation of the entire servo.

[0018] A temporary storage component for maintaining the position of the lower cylinder head 3 is provided between the side wall of the cylinder body 2 and the lower cylinder head 3. The temporary storage component includes a disc 9 and two support rods 10. The disc 9 is fixedly connected to the side wall of the lower cylinder head 3. The diameter of the disc 9 is larger than the diameter of the lower cylinder head 3. Two through grooves 11 are provided on the side wall of the disc 9. The two support rods 10 are respectively fixedly connected to both sides of the cylinder body 2. The angle between the two through grooves 11 is 180°, and the angle between the two support rods 10 is also 180°. Since the two support rods 10 need to correspond to the positions of the two through grooves 11, the angles between the two need to be consistent.

[0019] The longitudinal section of the support rod 10 is "U"-shaped, and the opening direction of the support rod 10 is facing the cylinder body 2. The side wall of the support rod 10 away from the cylinder body 2 is slidably connected to the bottom wall of the disc 9. The width of the support rod 10 is consistent with the width of the through slot 11. A groove 12 is provided on the side wall of the support rod 10 away from the cylinder body 2. A number of rollers 13 are rotatably connected in the groove 12, and each roller 13 is in contact with the bottom wall of the disc 9 respectively. When the lower cylinder cover 3 needs to be removed, all the fixing screws are first removed. Under the lifting action of the support rod 10, the lower cylinder cover 3 will not fall directly. The staff can rotate the disc 9 and the lower cylinder cover 3 until the support rod 10 moves to the position of the through slot 11, and then the disc 9 will fall together with the lower cylinder cover 3, making the disassembly and assembly work of the staff safer.

[0020] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. A rotary vane steering gear cylinder structure, comprising an upper cylinder head (1), a barrel (2) and a lower cylinder head (3), characterized in that: The upper cylinder cover (1) is mounted on the upper end of the cylinder body (2), and the lower cylinder cover (3) is mounted on the lower end of the cylinder body (2). A bushing (4) is mounted on the top wall of the upper cylinder cover (1), and a thrust bearing (5) is rotatably connected inside the bushing (4). A plane bearing (6) is arranged between the lower cylinder cover (3) and the cylinder body (2), and a temporary storage component for maintaining the position of the lower cylinder cover (3) is arranged between the side wall of the cylinder body (2) and the lower cylinder cover (3).

2. A rotary vane steering gear cylinder structure according to claim 1, characterized in that: A mounting surface (7) is fixedly connected to the side wall at the middle position of the cylinder (2), and a plurality of fixing holes (8) are provided on the side wall of the mounting surface (7).

3. The rotary vane steering gear cylinder structure according to claim 1, characterized in that: The diameters of the upper cylinder head (1) and the lower cylinder head (3) are consistent, and the outer diameter of the barrel (2) is also consistent with the diameter of the lower cylinder head (3).

4. The rotary vane steering gear cylinder structure according to claim 1, characterized in that: The temporary storage component comprises a disc (9) and two supporting rods (10). The disc (9) is fixedly connected to the side wall of the lower cylinder cover (3). The diameter of the disc (9) is larger than the diameter of the lower cylinder cover (3). Two through slots (11) are provided on the side wall of the disc (9). The two supporting rods (10) are respectively fixedly connected to two sides of the cylinder body (2). The longitudinal section of the supporting rod (10) is U-shaped. The opening direction of the supporting rod (10) faces the cylinder body (2). The side wall of one end of the supporting rod (10) away from the cylinder body (2) is slidably connected to the bottom wall of the disc (9). The width of the supporting rod (10) is consistent with the width of the through slot (11).

5. A rotary vane steering gear cylinder structure according to claim 4, characterized in that: A groove (12) is formed in the side wall of one end of the support rod (10) away from the cylinder body (2), and a plurality of rollers (13) are rotatably connected in the groove (12), and each of the rollers (13) is in contact with the bottom wall of the disc (9).

6. A rotary vane steering gear cylinder structure according to claim 4, characterized in that: The included angle between the two through slots (11) is 180°, and the included angle between the two support rods (10) is also 180°.

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