Adjustable intermediate bearing for ships

Abstract

The utility model discloses an adjustable ship intermediate bearing, including an intermediate bearing seat body, shock absorbing components are respectively installed on the left and right side support feet of the intermediate bearing seat body, and an adjustment support is correspondingly arranged under the support feet on each side, and the support surfaces of the adjustment supports on both sides are inclined surfaces facing each other, and the shock absorbing components are movably supported on the corresponding adjustment supports along the support inclined surfaces of the adjustment supports through the seat body support guide pair, and the adjustment support can be movably supported on the bearing base along the direction perpendicular to the ship intermediate shaft through the adjustment seat guide pair, and the left and right drive motors are installed on the bearing base, and the two drive motors are respectively connected to the corresponding side adjustment support in a transmission manner; a sensor is arranged on the shock absorbing component, and the sensor and the drive motor are both electrically connected to the control device. The adjustable ship intermediate bearing adopting the utility model can automatically adjust the installation position of the intermediate bearing to keep it coaxial with the intermediate shaft.

Description

Technical Field

[0001] The utility model relates to a marine accessory, in particular to an improvement of an intermediate bearing of a ship transmission shaft system. Background Art

[0002] The intermediate bearing in the ship is used to support the intermediate shaft, ensuring that the ship's power can be transmitted to the stern shaft through the intermediate shaft so that the ship can sail normally. The intermediate shaft usually needs to be rotatably supported on the hull through multiple intermediate bearings. When the mounting bolts are loose or the hull is deformed due to unexpected force, the intermediate bearing will be displaced. The radial displacement of the intermediate bearing in the intermediate shaft makes it difficult for the intermediate bearing and the intermediate shaft to continue to maintain a concentric state. The intermediate shaft in operation will inevitably vibrate, causing noise and damage to the intermediate bearing, intermediate shaft and other related parts. Since the intermediate bearing is installed in the ship's compartment, when the above situation occurs, maintenance and adjustment are inconvenient, which has a serious impact on the normal and safe navigation of the ship. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide an adjustable ship intermediate bearing, which can automatically adjust the installation position of the intermediate bearing to keep it coaxial with the intermediate shaft.

[0004] In order to solve the above technical problems, the utility model provides an adjustable ship intermediate bearing, including an intermediate bearing seat body, and shock-absorbing assemblies are respectively installed on the left and right side support feet of the intermediate bearing seat body, and an adjustment support is correspondingly arranged under the support feet on each side, and the supporting surfaces of the adjustment supports on both sides are inclined surfaces facing each other. The shock-absorbing assembly is movably supported on the corresponding adjustment support along the supporting inclined surface of the adjustment support through the seat body support guide pair, and the adjustment support can be movably supported on the bearing base along the direction perpendicular to the ship's intermediate axis through the adjustment seat guide pair, and left and right drive motors are installed on the bearing base, and the two drive motors are respectively connected to the adjustment supports on the corresponding sides in a transmission manner; a sensor is provided on the shock-absorbing assembly, and the sensor and the drive motor are both electrically connected to the control device.

[0005] After adopting the above technical scheme, the middle bearing will be installed on the hull through the left and right adjustment supports and the bearing base. The left and right adjustment supports can be movably displaced on the bearing base through the adjustment seat guide sub-edge in a direction perpendicular to the ship's middle shaft, so that the shock-absorbing component movably supported on the corresponding adjustment support through the support inclined surface of the seat support guide sub-edge can drive the support feet on the corresponding side of the middle bearing seat body to change the up, down, left and right positions. If the left and right adjustment supports are displaced left and right in the same direction at the same time, the left and right position of the middle bearing can be changed. If the left and right adjustment supports are displaced left and right in opposite directions at the same time, the height position of the middle bearing can be changed. In this way, the installation position of the middle bearing can be adjusted. When the installation bolts are loose or the hull is deformed due to unexpected force, resulting in the wrong displacement of the middle bearing, the middle bearing can be displaced up, down, left and right along the radial direction of the middle shaft, so that the middle bearing and the middle shaft remain concentric. The sensor provided on the shock absorbing assembly will detect the pressure or vibration information of the shock absorbing assembly when the intermediate shaft is in operation. The detected pressure or vibration information will provide a basis for whether the position of the left and right adjustment supports needs to be adjusted and the size of the required adjustment amount. The detected information is processed by the control device to adjust the left and right drive motors to shift the left and right adjustment supports and accurately adjust the position of the intermediate bearing. In short, if the pressure or vibration detected by the left and right sensors is inconsistent, it means that eccentricity occurs between the intermediate shaft and the intermediate bearing. The intermediate bearing should be adjusted to the side with greater pressure or less vibration until the pressure or vibration information detected by the left and right sensors is consistent. If the pressure or vibration information detected by the left and right sensors is consistent, but different from the information in the initial state, it means that the intermediate shaft and the intermediate bearing are not concentric in the height direction, and the positions of the left and right adjustment supports need to be adjusted in the opposite direction at the same time until the detected information is consistent with the initial state. In this way, the installation position of the intermediate bearing can be automatically adjusted to keep it coaxial with the intermediate shaft; and the shock absorbing assembly installed on the left and right support feet of the intermediate bearing can also effectively buffer the vibration that may be produced during the operation of the intermediate shaft, and play a good vibration isolation and shock reduction effect.

[0006] In a preferred embodiment of the utility model, the shock absorbing assembly includes a shock absorbing pad, which is arranged on the shock absorbing seat, and the legs of the intermediate bearing seat body are placed on the shock absorbing pad. At least two guide rods are fixed on the shock absorbing seat, and the upper ends of the guide rods are movably inserted into the corresponding legs along the axial direction of the guide rods. With this embodiment, the shock absorbing assembly is connected to the intermediate bearing seat body through at least two guide rods on the shock absorbing seat, and the intermediate bearing seat body can perform shock absorbing movement along the axial direction of the guide rods relative to the shock absorbing seat, and is relatively fixed in other directions, so that the shock absorbing assembly and the intermediate bearing seat body are reliably connected.

[0007] In another preferred embodiment of the utility model, the shock-absorbing pad is a hard rubber product. With this embodiment, the intermediate shaft can be adapted to the larger vibration impact force and the intermediate shaft can be kept running stably under the requirement of forming good buffering and shock absorption.

[0008] In another preferred embodiment of the utility model, the seat support guide rail pair includes a guide groove arranged on the support inclined surface of the adjustment support, and a guide tenon matching the guide groove is arranged on the shock absorbing seat. With this embodiment, the guide groove and the guide tenon match each other to ensure the movable support connection between the intermediate bearing seat body and the adjustment support along the support inclined surface of the adjustment support.

[0009] In a further preferred embodiment of the utility model, the angle α between the support slope of the adjustment support and the horizontal plane is 10° to 20°. With this embodiment, it can be ensured that when the adjustment support is displaced, the intermediate bearing seat body supported by the shock absorbing assembly can move relatively flexibly along the support slope of the adjustment support, thereby reducing the displacement resistance of the adjustment support.

[0010] In another further preferred embodiment of the utility model, the adjusting seat guide pair includes a guide groove arranged on the bearing base, and a guide tenon matching the guide groove is arranged on the adjusting support. With this embodiment, the adjusting seat guide pair has a relatively simple structure and a strong bearing capacity, which can meet the use requirements.

[0011] In another preferred embodiment of the utility model, the driving motor is connected to the corresponding side adjustment support through a screw nut pair. With this embodiment, the adjustment support is displaced by the rotation of the screw of the screw nut pair, with high displacement accuracy and easy control and adjustment.

[0012] In a further preferred embodiment of the utility model, the driving motor is a servo motor. With this embodiment, the servo motor is precisely controlled and can ensure the displacement accuracy requirement of the adjustment support.

[0013] In another further preferred embodiment of the utility model, the sensor is a pressure sensor, which is installed between the shock-absorbing seat and the support leg. With this embodiment, the pressure sensor installed between the shock-absorbing seat and the support leg can detect the compressive stress generated by the intermediate bearing seat body on the shock-absorbing seat due to vibration during the operation of the intermediate shaft, so that the control device determines whether it is necessary to adjust the position of the corresponding support by comparing the compressive stress detected by the left and right pressure sensors, thereby meeting the detection requirements for automatic adjustment of the intermediate bearing position.

[0014] In another further preferred embodiment of the utility model, the sensor is an amplitude sensor, which is installed on a bracket sandwiched between the support foot and the shock-absorbing pad. With this embodiment, the amplitude sensor installed on the bracket sandwiched between the support foot and the shock-absorbing pad can detect the vibration amplitude value transmitted to the bracket on which the amplitude sensor is installed through the intermediate bearing seat body due to vibration during the operation of the intermediate shaft, so that the control device determines whether it is necessary to adjust the position of the corresponding adjustment seat by comparing the amplitude values ​​detected by the left and right amplitude sensors, thereby meeting the detection requirements for automatic adjustment of the intermediate bearing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The adjustable ship intermediate bearing of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a structural schematic diagram of a specific implementation of the utility model of an adjustable ship intermediate bearing;

[0017] Figure 2 yes Figure 1 a top view of the structure shown;

[0018] Figure 3 yes Figure 1 a side view of the structure shown;

[0019] Figure 4 yes Figure 1 A partial enlarged view of position I in the structure shown;

[0020] Figure 5 yes Figure 4 A cross-sectional view of the AA portion of the structure shown;

[0021] Figure 6 yes Figure 1 A partial enlarged view of another embodiment of the sensor at position I in the shown structure.

[0022] In the figure: 1-bearing base, 11-guide groove, 2-adjusting support, 21-guide tenon, 22-guide groove, 3-shock-absorbing assembly, 31-shock-absorbing seat, 311-guide tenon, 32-shock-absorbing pad, 33-guide rod, 4-sensor, 5-intermediate bearing seat body, 51-support foot, 6-screw nut pair, 7-drive motor, 8-ship intermediate shaft, 9-bracket. DETAILED DESCRIPTION

[0023] exist Figure 1 , Figure 2 and Figure 3In the adjustable ship intermediate bearing shown, the intermediate bearing seat body 5 is the supporting shell of the intermediate bearing, and the ship intermediate shaft 8 is rotatably supported on the intermediate bearing seat body 5 through the shaft bushing. Shock-absorbing components 3 are respectively installed on the left and right side legs 51 of the intermediate bearing seat body 5, and an adjusting support 2 is correspondingly arranged under the support leg 51 on each side. The supporting surfaces of the adjusting supports 2 on both sides are inclined surfaces facing each other and are symmetrically distributed in a V-shape. The angle α between the supporting inclined surfaces and the horizontal plane is 10° to 20°. The mounting plane at the bottom of the support leg 51 is parallel to the supporting inclined surface of the adjusting support 2. In this way, the upper and lower mounting surfaces of the shock-absorbing component 3 are parallel, and the shock-absorbing effects of various parts thereof can be kept consistent; see Figure 4 The shock absorbing assembly 3 includes a shock absorbing pad 32, which is arranged on the shock absorbing seat 31, and the two can be fixedly connected by gluing. The shock absorbing pad 32 is preferably made of hard rubber. A side support leg 51 of the intermediate bearing seat body 5 is placed on the shock absorbing pad 32. At least two guide rods 33 are fixedly arranged on the shock absorbing seat 31. As shown in the figure, four guide rods 33 are provided. The upper ends of the guide rods 33 are movably inserted into the corresponding support legs 51 along the axial direction of the guide rods 33. The four guide rods 33 are distributed in a rectangular shape along the front, back, left and right. Of course, only two guide rods 33 can be provided. The two guide rods 33 are preferably distributed along the left and right directions and are located on the same cross section of the ship's intermediate shaft 8. In this way, the intermediate bearing seat body 5 can perform shock absorbing movement along the axial direction of the guide rods 33 relative to the shock absorbing seat 31, and is relatively fixed in other directions, so that the shock absorbing assembly 3 and the intermediate bearing seat body 5 are reliably connected; the shock absorbing assembly 3 is movably supported on the corresponding adjustment support 2 along the support inclined surface of the adjustment support 2 through the seat body support guide rail pair, see Figure 5 The seat body supporting guide pair includes guide grooves 22 arranged on both sides of the supporting inclined surface of the adjusting support 2, and two guide tenons 311 matching the guide grooves 22 are arranged on the shock absorbing seat 31. Through the sliding cooperation between the guide tenons 311 and the guide grooves 22, the intermediate bearing seat body 5 and the adjusting support 2 can slide relative to each other along the supporting inclined surface of the adjusting support 2; the seat body supporting guide pair may not be composed of the guide grooves 22 and the guide tenons 311, but may directly adopt a universal linear guide pair, the slider of the linear guide pair is installed on the shock absorbing seat 31, and the guide rail of the linear guide pair is installed on the supporting inclined surface of the adjusting support 2, which can also achieve a good supporting effect.

[0024] The adjusting support 2 can be movably supported on the bearing base 1 in a direction perpendicular to the ship intermediate shaft 8 through the adjusting seat guide pair. The bearing base 1 is arranged horizontally. Figure 3As shown, the adjustment seat guide pair includes a guide groove 11 arranged on the bearing base 1, and a guide tenon 21 matching the guide groove 11 is arranged on the adjustment support 2. The guide groove 11 and the matching guide tenon 21 shown in the figure are rectangular cross-sections, and of course their cross-sections can also be dovetail-shaped; left and right drive motors 7 are installed on the bearing base 1, and the two drive motors 7 are respectively connected to the adjustment support 2 on the corresponding side, and the drive motor 7 is preferably connected to the adjustment support 2 on the corresponding side through a screw nut pair 6, the screw in the screw nut pair 6 is driven by the drive motor 7 to rotate and support on the bearing base 1, the nut in the screw nut pair 6 is set on the adjustment support 2, and the drive motor 7 is preferably a servo motor.

[0025] A sensor 4 is provided on the shock absorbing assembly 3, such as Figure 4 As shown, the sensor 4 is a pressure sensor, which is installed between the shock-absorbing seat 31 and the support leg 51. The pressure sensor can detect the compressive stress generated by the intermediate bearing seat body 5 on the shock-absorbing seat 31 due to vibration during the operation of the ship's intermediate shaft 8; the sensor 4 can also be an amplitude sensor, such as Figure 6 As shown, the amplitude sensor is installed on the bracket 9 sandwiched between the support foot 51 and the shock-absorbing pad 32, and can detect the vibration amplitude value transmitted to the bracket 9 on which the amplitude sensor is installed through the intermediate bearing seat body 5 due to vibration during the operation of the ship's intermediate shaft 8; the sensor 4 and the drive motor 7 are both electrically connected to the control device, and the control device analyzes and judges the information of the compressive stress or amplitude on the left and right sides detected by the sensor 4, and draws conclusions on whether the ship's intermediate shaft 8 and the intermediate bearing seat body 5 are within the allowable coaxiality range, whether the positions of the left and right adjustment supports 2 need to be adjusted, and the size of the required adjustment amount, and then regulates the action of the left and right drive motors 7 to shift the left and right adjustment supports 2 to accurately achieve the position adjustment of the intermediate bearing.

[0026] The above only lists some preferred embodiments of the present invention, but is not limited thereto, and many improvements and changes can be made. As long as the improvements and changes are made on the basis of the basic principles of the present invention, they should be considered to fall within the scope of protection of the present invention.

Claims

1. An adjustable intermediate bearing for a ship, comprising an intermediate bearing seat (5), characterized in that: Shock absorbing components (3) are respectively installed on the left and right side support feet (51) of the intermediate bearing seat body (5), and an adjustment support (2) is correspondingly arranged below the support feet (51) on each side. The support surfaces of the adjustment supports (2) on both sides are inclined surfaces facing each other. The shock absorbing component (3) is movably supported on the corresponding adjustment support (2) along the support inclined surface of the adjustment support (2) through the seat body support guide pair. The adjustment support (2) can be movably supported on the bearing base (1) along the direction perpendicular to the ship's intermediate shaft (8) through the adjustment seat guide pair. The bearing base (1) is installed with left and right drive motors (7), and the two drive motors (7) are respectively connected to the corresponding side adjustment support (2) in a transmission manner. The shock absorbing component (3) is provided with a sensor (4), and the sensor (4) and the drive motor (7) are both electrically connected to the control device.

2. The adjustable ship intermediate bearing according to claim 1, characterized in that: The shock absorbing assembly (3) comprises a shock absorbing pad (32), the shock absorbing pad (32) being arranged on the shock absorbing seat (31), the supporting legs (51) of the intermediate bearing seat body (5) being placed on the shock absorbing pad (32), at least two guide rods (33) being fixedly arranged on the shock absorbing seat (31), the upper ends of the guide rods (33) being movably plugged into the corresponding supporting legs (51) along the axial direction of the guide rods (33).

3. The adjustable ship intermediate bearing according to claim 2, characterized in that: The shock-absorbing pad (32) is a hard rubber product.

4. The adjustable ship intermediate bearing according to claim 2, characterized in that: The seat body supporting guide rail pair comprises a guide groove (22) arranged on the supporting inclined surface of the adjusting support (2), and a guide tenon (311) matching the guide groove (22) is provided on the shock absorbing seat (31).

5. The adjustable ship intermediate bearing according to claim 1, characterized in that: The included angle α between the supporting inclined surface of the adjusting support (2) and the horizontal plane is 10° to 20°.

6. The adjustable ship intermediate bearing according to claim 1, characterized in that: The adjusting seat guide pair comprises a guide groove (11) arranged on the bearing base (1), and a guide tenon (21) matching the guide groove (11) is arranged on the adjusting support (2).

7. The adjustable ship intermediate bearing according to claim 1, characterized in that: The driving motor (7) is transmission-connected to the adjusting support (2) on the corresponding side via a screw-nut pair (6).

8. The adjustable ship intermediate bearing according to claim 1 or 7, characterized in that: The driving motor (7) is a servo motor.

9. The adjustable ship intermediate bearing according to claim 1, characterized in that: The sensor (4) is a pressure sensor, which is installed between the shock-absorbing seat (31) and the support foot (51).

10. The adjustable ship intermediate bearing according to claim 1, characterized in that: The sensor (4) is an amplitude sensor, which is mounted on a bracket (9) sandwiched between a support foot (51) and a shock-absorbing pad (32).

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