Marine intermediate bearing with controllable oil injection

Abstract

The invention discloses a marine intermediate bearing with controllable oil injection. The marine intermediate bearing comprises a bearing seat, a supporting ring sleeve, an abutting ring sleeve, a controller, a driving unit, a movable sealing mechanism and an oil injection pipe. Lubricating oil can be injected in advance through the oil injection pipe, oil enters the oil injection chamber through the telescopic guide pipe, when the lubricating oil needs to be added, the controller controls the driving unit, the driving unit controls the first sealing plate and the second sealing plate to synchronously and horizontally move, and when the oil injection chamber moves to the upper end of the oil guide channel, the oil guide channel is closed. When the oil injection chamber moves to be separated from the upper end of the oil guide channel, the oil injection chamber stops injecting the oil into the oil guide channel, so that the driving unit is regularly controlled through the controller, the oil is periodically injected, the defect that the oil is always downwards lost due to gravity is overcome, and the service life of the oil is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of marine bearings, and in particular relates to an oil-injection controllable marine intermediate bearing. Background Art

[0002] In recent years, the trend of large-scale ships has become increasingly significant, and the power of the main engine has also increased accordingly, which has greatly increased the shaft diameter of the ship's propulsion shaft system. On the other hand, in order to obtain high efficiency, the propeller's speed is getting lower and lower, the blade diameter tends to increase, and the corresponding propeller weight tends to become heavier, which also leads to an increase in the shaft diameter of the propulsion shaft system. All of these make the weight of the shaft increase with the increase in the shaft diameter, which requires the bearing capacity of the bearing to be correspondingly improved. The current marine intermediate bearing generally needs to be injected with lubricating oil so that the intermediate shaft can be lubricated when it rotates on the bearing to reduce friction. When injecting lubricating oil into the bearing, it is often injected from the upper end of the bearing seat. In this way, the lubricating oil will continue to flow downward through gravity, and even cause the lubricating oil to overflow from the front and rear edges of the intermediate shaft. This makes the lubricating oil use faster and the lubrication cycle short, which makes it necessary to add lubricating oil frequently, and the operation is more cumbersome. For this reason, it is necessary to upgrade the structure to extend the service life under the condition of the same amount of lubricating oil added, and reduce the frequency of adding lubricating oil. Summary of the invention

[0003] In view of the above-mentioned deficiencies of the prior art, the present invention solves the problem of providing an oil-filled controllable marine intermediate bearing which can control the addition of lubricating oil and facilitate automatic control.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: An oil-injection controllable marine intermediate bearing comprises a bearing seat, a supporting ring sleeve, an abutting ring sleeve, a controller, a driving unit, a movable sealing mechanism and an oil-injection pipe; a through-interface is provided through the middle of the bearing seat at the front and back; a supporting ring sleeve is fixedly installed around the through-interface; an abutting ring sleeve is installed on the inner side of the supporting ring sleeve, and the outer sides of the abutting ring sleeve are fixedly connected to the inner sides of the supporting ring sleeve; a movable groove and a control cavity are provided at the upper end of the bearing seat; the controller and the driving unit are installed in the control cavity; the movable sealing mechanism is installed in the movable groove; the movable sealing mechanism comprises a first sealing plate, a second sealing plate, a connecting column and a telescopic guide tube; the first sealing plate and the second sealing plate are relatively installed in the movable groove, and the outer sides of the first sealing plate and the second sealing plate are sealed and abutted against the inner wall of the movable groove. An oil filling chamber is formed between the first closing plate, the second closing plate and the inner wall of the movable groove, and a connecting column is installed in the center between the first closing plate and the second closing plate; an oil guide channel is provided on the upper sides of the supporting ring sleeve and the abutting ring sleeve, and the upper end of the oil guide channel extends to the lower side of the movable groove; a connecting pipe is passed through the first closing plate, and the outer end of the connecting pipe is connected to the telescopic guide tube, the oil filling pipe is fixedly installed on the bearing seat, the inner end of the oil filling pipe extends into the movable groove and is connected to the telescopic guide tube, and the outer end of the oil filling pipe extends to the outer side of the upper end of the bearing seat; the controller controls the driving unit, and enables the driving unit to control the first closing plate and the second closing plate to move horizontally synchronously, when the oil filling chamber moves to the upper end of the oil guide channel, the oil filling chamber injects oil into the oil guide channel, and when the oil filling chamber moves and separates from the upper end of the oil guide channel, the oil filling chamber stops injecting oil into the oil guide channel.

[0005] Furthermore, the driving unit drives the second closed plate to move horizontally through a connecting assembly; the connecting assembly includes a rotating cylinder and a moving column; the driving unit is an electric motor; the outer side of the driving unit is connected to the rotating cylinder, the driving unit drives the connecting cylinder to rotate forward and reversely, the inner end of the rotating cylinder extends into the moving groove, the inner end of the rotating cylinder is threadedly sleeved with the moving column, and the outer end of the moving column is fixedly connected to the outer side of the second closed plate.

[0006] Furthermore, the upper and lower parts of the movable groove are respectively provided with limiting cylinders; the upper and lower sides of the movable column are respectively provided with guide rods; and the guide rods are slidably inserted into the limiting cylinders.

[0007] Furthermore, the inner cavity of the movable groove has a circular structure in longitudinal cross-section.

[0008] Furthermore, sealing rings are provided around the first closing plate and the second closing plate, and the sealing rings are in sealing contact with the inner walls around the movable groove.

[0009] Furthermore, an opening is provided on one side of the upper end of the bearing seat, the upper end of the oil filling pipe extends to the opening at the upper end of the bearing seat, and an opening and closing valve is provided on the upper end of the oil filling pipe.

[0010] Furthermore, the abutment ring sleeve is made of wear-resistant material.

[0011] Furthermore, the support ring sleeve is made of alloy material.

[0012] The beneficial effects of the present invention are as follows: 1. The present invention can pre-inject lubricating oil through the oil filling pipe, and the oil enters the oil filling chamber through the telescopic guide tube. When lubricating oil needs to be added, the controller controls the driving unit, and enables the driving unit to control the first closing plate and the second closing plate to move horizontally synchronously. When the oil filling chamber moves to the upper end of the oil guide channel, the oil filling chamber injects oil into the oil guide channel. When the oil filling chamber moves and separates from the upper end of the oil guide channel, the oil filling chamber stops injecting oil into the oil guide channel. In this way, the driving unit is regularly controlled by the controller to achieve periodic injection of oil, thereby avoiding the disadvantage that the oil is always lost downward due to gravity, and improving the service life of the oil.

[0013] 2. The present invention seals the oil and forms an oil filling chamber between the first sealing plate, the second sealing plate and the inner wall of the movable groove. In this way, the oil can be injected into the oil filling chamber and the oil inside is driven to move by the oil filling chamber. In this way, the oil is sealed and moved horizontally at the same time, so as to facilitate oil filling and sealing, and the structural design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the present invention in a non-oil-filled state.

[0015] Figure 2 This is a schematic diagram of the structure of the present invention in the oil injection state.

[0016] Figure 3 For the present invention Figure 1 Schematic diagram of the structure in the upper middle part.

[0017] Figure 4 For the present invention Figure 2 Schematic diagram of the structure in the upper middle part.

[0018] Figure 5 For the present invention Figure 4 Schematic diagram of the local enlarged structure. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] like Figures 1 to 5As shown, an oil-injection controllable marine intermediate bearing comprises a bearing seat 1, a support ring sleeve 2, an abutment ring sleeve 3, a controller 4, a drive unit 5, a movable closing mechanism 6 and an oil injection pipe 7; a through-hole 11 is provided through the middle of the bearing seat 1 at the front and back; a support ring sleeve 2 is fixedly installed around the through-hole 11; an abutment ring sleeve 3 is installed on the inner side of the support ring sleeve 2, and the outer sides of the abutment ring sleeve 3 are fixedly connected to the inner sides of the support ring sleeve 2; a movable groove 12 and a control cavity 13 are provided at the upper end of the bearing seat 1; the controller 4 and the drive unit 5 are installed in the control cavity 13; the movable closing mechanism 6 is installed in the movable groove 12; the movable closing mechanism 6 comprises a first closing plate 61, a second closing plate 62, a connecting column 63 and a telescopic guide tube 64; the first closing plate 61 and the second closing plate 62 are relatively installed in the movable groove 12, and the outer sides of the first closing plate 61 and the second closing plate 62 are sealed and abutted against the inner wall of the movable groove 12, and the first The closing plate 61, the second closing plate 62 and the inner wall of the movable groove 12 form an oil filling chamber 65, and a connecting column 63 is installed in the center between the first closing plate 61 and the second closing plate 62; the upper side of the supporting ring sleeve 2 and the abutting ring sleeve 3 is provided with an oil guide channel 14, and the upper end of the oil guide channel 14 extends to the lower side of the movable groove 12; the first closing plate 61 is connected with a guide tube, and the outer end of the guide tube is connected to the telescopic guide tube 64, and the oil filling tube 7 is fixedly installed on the bearing seat 1, and the inner end of the oil filling tube 7 extends To the movable groove 12 and connected with the telescopic guide tube 64, the outer end of the oil filling pipe 7 extends to the outer side of the upper end of the bearing seat 1; the controller 4 controls the driving unit 5, and enables the driving unit 5 to control the first closing plate 61 and the second closing plate 62 to move horizontally synchronously, when the oil filling chamber 65 moves to the upper end of the oil guide channel 14, the oil filling chamber 65 injects oil into the oil guide channel 14, and when the oil filling chamber 65 moves and separates from the upper end of the oil guide channel 14, the oil filling chamber 65 stops injecting oil into the oil guide channel 14.

[0021] like Figures 1 to 5 As shown, in order for the driving unit 5 to control the synchronous horizontal movement of the first closing plate 61 and the second closing plate 62 to realize the two operating states of oil injection and sealing, further, the driving unit 5 drives the second closing plate 62 to move horizontally through the connecting assembly 8; the connecting assembly 8 includes a rotating cylinder 81 and a moving column 82; the driving unit 5 is a motor; the outer side of the driving unit 5 is connected to the rotating cylinder 81, and the driving unit 5 drives the connecting cylinder 81 to rotate forward and reversely, the inner end of the rotating cylinder 81 extends into the moving groove 12, the inner end of the rotating cylinder 81 is threadedly sleeved with the moving column 82, and the outer end of the moving column 82 is fixedly connected to the outer side of the second closing plate 62. In order for the moving column 82 to move horizontally stably, further, the upper and lower parts of the moving groove 12 are respectively provided with limiting cylinders 83; the upper and lower sides of the moving column 82 are respectively provided with guide rods 84; the guide rods 84 are slidably inserted into the limiting cylinder 83.

[0022] like Figures 1 to 5 As shown, in order to ensure the sealing performance, further, the longitudinal cross-sectional structure of the inner cavity of the movable groove 12 is a circular structure. Further, the first closing plate 61 and the second closing plate 62 are provided with sealing rings 9 on all sides, and the sealing rings 9 are sealed against the inner walls of the movable groove 12 on all sides. In order to facilitate the injection of oil, further, an opening 15 is provided on one side of the upper end of the bearing seat 1, and the upper end of the oil filling pipe 7 extends to the opening 15 at the upper end of the bearing seat 1, and an opening and closing valve 71 is provided on the upper end of the oil filling pipe 7. Further, the abutment ring sleeve 3 is made of wear-resistant material. Further, the support ring sleeve 2 is made of alloy material.

[0023] The present invention can pre-inject lubricating oil through the oil filling pipe 7, and the oil enters the oil filling chamber 65 through the telescopic guide tube 64. When lubricating oil needs to be added, the controller 4 controls the drive unit 5, and enables the drive unit 5 to control the first closing plate 61 and the second closing plate 62 to move horizontally synchronously. When the oil filling chamber 65 moves to the upper end of the oil guide channel 14, the oil filling chamber 65 injects oil into the oil guide channel 14. When the oil filling chamber 65 moves and separates from the upper end of the oil guide channel 14, the oil filling chamber 65 stops injecting oil into the oil guide channel 14. In this way, the drive unit 5 is regularly controlled by the controller 4 to achieve periodic oil injection, thereby avoiding the disadvantage that the oil is always lost downward due to gravity, and improving the service life of the oil.

[0024] The present invention seals the oil and forms an oil filling chamber 65 between the first sealing plate 61, the second sealing plate 62 and the inner wall of the movable groove 12, so that the oil can be injected into the oil filling chamber 65, and the oil inside is driven to move by the oil filling chamber 65, so that the oil can be sealed and moved horizontally at the same time, so as to facilitate oil filling and sealing, and the structural design is ingenious.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil injection controllable marine intermediate bearing, characterized in that: It includes a bearing seat, a supporting ring sleeve, an abutting ring sleeve, a controller, a driving unit, a movable closing mechanism, and an oil filling pipe; a through-interface is provided through the middle front and back of the bearing seat; a supporting ring sleeve is fixedly installed around the through-interface; an abutting ring sleeve is installed on the inner side of the supporting ring sleeve, and the outer sides of the abutting ring sleeve are fixedly connected to the inner sides of the supporting ring sleeve; a movable groove and a control cavity are provided at the upper end of the bearing seat; the controller and the driving unit are installed in the control cavity; the movable closing mechanism is installed in the movable groove; the movable closing mechanism includes a first closing plate, a second closing plate, a connecting column, and a telescopic guide tube; the first closing plate and the second closing plate are relatively installed in the movable groove, the outer sides of the first closing plate and the second closing plate are sealed and abutted against the inner wall of the movable groove, and the first closing plate and the first closing plate are connected to the inner wall of the movable groove. An oil filling chamber is formed between the two closed plates and the inner wall of the movable groove, and a connecting column is installed in the center between the first closed plate and the second closed plate; an oil guide channel is provided on the upper sides of the support ring sleeve and the abutment ring sleeve, and the upper end of the oil guide channel extends to the lower side of the movable groove; a guiding tube is passed through the first closed plate, and the outer end of the guiding tube is connected to the telescopic guide tube, the oil filling tube is fixedly installed on the bearing seat, the inner end of the oil filling tube extends into the movable groove and is connected to the telescopic guide tube, and the outer end of the oil filling tube extends to the outer side of the upper end of the bearing seat; the controller controls the driving unit, and enables the driving unit to control the first closed plate and the second closed plate to move horizontally synchronously, when the oil filling chamber moves to the upper end of the oil guide channel, the oil filling chamber injects oil into the oil guide channel, and when the oil filling chamber moves and separates from the upper end of the oil guide channel, the oil filling chamber stops injecting oil into the oil guide channel.

2. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: The driving unit drives the second closed plate to move horizontally through a connecting assembly; the connecting assembly includes a rotating cylinder and a moving column; the driving unit is an electric motor; the outer side of the driving unit is connected to the rotating cylinder, and the driving unit drives the connecting cylinder to rotate forward and reversely, the inner end of the rotating cylinder extends into the moving groove, the inner end of the rotating cylinder is threadedly sleeved with the moving column, and the outer end of the moving column is fixedly connected to the outer side of the second closed plate.

3. The oil injection controllable marine intermediate bearing according to claim 2, characterized in that: The upper and lower parts of the movable groove are respectively provided with limiting cylinders; the upper and lower sides of the movable column are respectively provided with guide rods; and the guide rods are slidably inserted into the limiting cylinders.

4. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: The inner cavity of the movable groove has a circular structure in longitudinal section.

5. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: The first closing plate and the second closing plate are both provided with sealing rings around their peripheries, and the sealing rings are in sealing contact with the inner walls around the movable groove.

6. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: An opening is arranged on one side of the upper end of the bearing seat, the upper end of the oil filling pipe extends to the opening at the upper end of the bearing seat, and an opening and closing valve is arranged on the upper end of the oil filling pipe.

7. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: The abutment ring sleeve is made of wear-resistant material.

8. The oil injection controllable marine intermediate bearing according to claim 1, characterized in that: The supporting ring sleeve is made of alloy material.

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