Steel-copper bimetal composite shaft sleeve

Abstract

The steel-copper bimetal composite shaft sleeve comprises an outer shaft sleeve and an inner shaft sleeve, the inner shaft sleeve is arranged on the inner side of the outer shaft sleeve and detachably connected with the outer shaft sleeve, a liquid storage cavity is formed in the outer shaft sleeve, an oil groove and an oil outlet hole are formed in the inner shaft sleeve, the oil outlet hole is connected with the liquid storage cavity of the outer shaft sleeve, and the oil groove is connected with the oil outlet hole. An oil inlet hole is formed in the outer shaft sleeve, a sealing piece is arranged at the oil inlet hole of the outer shaft sleeve, and a filtering piece is arranged at the lower side of the sealing piece of the outer shaft sleeve; oil enters the liquid storage cavity through the oil inlet hole, impurities in the lubricating oil are filtered out through the filtering piece, the lubricating oil flows to the oil groove through the oil outlet hole to be lubricated, the impurities are blocked on the outer side of the oil groove through the filtering net plate, the probability that the oil outlet hole and the oil groove are blocked is reduced, meanwhile, the outer shaft sleeve and the inner shaft sleeve are detachable, and the effect that the shaft sleeve is conveniently cleaned after dust is accumulated is achieved.

Description

Technical Field

[0001] The present application relates to the field of shaft sleeves, and in particular to a steel-copper bimetallic composite shaft sleeve. Background Art

[0002] The sleeve is a cylindrical mechanical part that is sleeved on the rotating shaft and is a component of the sliding bearing. Generally speaking, the sleeve and the bearing seat adopt an interference fit, and the sleeve and the shaft adopt a clearance fit. The sleeve refers to the sleeve on the propeller shaft or the stern shaft. The bearing is a component that fixes and reduces the load friction coefficient during the mechanical transmission process. The similarity between the sleeve and the bearing is that both bear the load of the shaft, and the difference between the two is that the sleeve is an integral structure, and the shaft and the sleeve move relative to each other when rotating; while the bearing is a split type, and the inner and outer rings of the bearing itself move relative to each other when rotating. But in essence, the sleeve is actually a kind of sliding bearing.

[0003] In the related art, reference may be made to the invention patent with publication number CN107100935A, which discloses a wear-resistant sleeve, including a sleeve body, an axial hole being arranged in the sleeve body, a bushing being arranged on the inner wall of the axial hole, the sleeve including a first annular body and a second annular body, the two end faces of the first annular body being respectively connected to the second annular body, a plurality of openings being arranged on the second annular body, an oil through hole being arranged on the first annular body, a first oil injection hole and a second oil injection hole being arranged on the sleeve body, the first oil injection hole being connected to the oil through hole, and the second oil injection hole being connected to at least one opening; through the design of the bushing, the wear resistance of the sleeve is increased, and at the same time, it is more convenient to add lubricating oil, and the heat generated during the friction between the shaft and the sleeve can be effectively released, the damage of components such as the sleeve, the shaft and the bearing can be reduced, and the service life of components such as the sleeve, the shaft and the bearing can be extended.

[0004] When the existing sleeve is used for a long time, metal debris dropped by the wear of the main shaft and the sleeve and long-term dust accumulation are deposited in the oil hole of the sleeve along with the lubricating oil, which is inconvenient to clean and will block the oil hole, thereby reducing the service life of the sleeve. Utility Model Content

[0005] In order to solve the problem that metal debris and dust are deposited with lubricating oil during long-term use, making cleaning inconvenient and reducing the service life of the sleeve, the present application provides a steel-copper bimetallic composite sleeve.

[0006] The present application provides a steel-copper bimetallic composite sleeve adopts the following technical solution:

[0007] A steel-copper bimetallic composite sleeve comprises an outer sleeve and an inner sleeve, wherein the inner sleeve is arranged on the inner side of the outer sleeve and is detachably connected to the outer sleeve, the outer sleeve is provided with a liquid storage chamber, the inner sleeve is provided with an oil groove and an oil outlet hole, the oil outlet hole is connected to the liquid storage chamber of the outer sleeve, the oil groove is connected to the oil outlet hole, the inner sleeve is provided with a filter screen plate at the oil groove, the outer sleeve is provided with an oil inlet hole, the outer sleeve is provided with a sealing member at the oil inlet hole, and the outer sleeve is provided with a filter member at the lower side of the sealing member.

[0008] By adopting the above technical scheme, oil enters the liquid storage chamber through the oil inlet hole, the filter element filters impurities in the lubricating oil, the lubricating oil is lubricated at the oil tank through the oil outlet hole, the filter plate blocks impurities outside the oil tank, and the probability of the oil outlet hole and the oil tank being blocked is reduced. At the same time, the outer sleeve and the inner sleeve are removable, so it is convenient to clean the sleeve after dust accumulation.

[0009] Optionally, the sealing member includes a sealing plate and a push rod, a sealing groove is provided on the outer sleeve at the oil inlet hole, the sealing plate is slidably installed at the sealing groove and closes the oil inlet hole, the push rod is arranged on the sealing plate and one end of the push rod is located outside the outer sleeve, and a first spring is provided on the outer sleeve at the sealing groove, and one end of the first spring is connected to one side of the sealing plate.

[0010] By adopting the above technical solution, when oil is introduced, the push rod is pulled to drive the sealing plate to slide, at which time the oil inlet hole is opened and the first spring is compressed. After the oil is introduced, the first spring pushes the sealing plate to close the oil inlet hole.

[0011] Optionally, the filter element includes a sliding frame, a first filter screen and a second filter screen, the outer sleeve is provided with an oil inlet pipe at the oil inlet hole, the sliding frame is inserted at the oil inlet pipe, the first filter screen and the second filter screen are arranged on the sliding frame and distributed parallel to each other.

[0012] By adopting the above technical solution, when oil is introduced, the first filter and the second filter filter the lubricating oil in turn. When the first filter and the second filter need to be cleaned, the sliding frame is taken out, and the cleaning operation of the first filter and the second filter is more convenient, reducing the probability of impurities clogging the filter holes.

[0013] Optionally, the mesh size of the second filter is smaller than the mesh size of the first filter.

[0014] By adopting the above technical solution, after filtering through the first filter screen and then filtering through the second filter screen, the probability of impurities being brought into the shaft sleeve along with the lubricating oil is reduced.

[0015] Optionally, a mounting groove is provided on the inner side of the outer sleeve, the inner sleeve is slidably installed in the mounting groove, and a limiting member for fixing the inner sleeve is provided on the outer sleeve.

[0016] By adopting the above technical solution, when dust accumulates inside the sleeve and needs to be cleaned regularly, the limit piece is opened, and the inner sleeve is removed from the outer sleeve for cleaning, and the cleaning operation is relatively convenient.

[0017] Optionally, the limiting member includes an insert block and a sliding rod, the sliding rod is slidably mounted on the outer sleeve, a second spring is sleeved on the sliding rod, the insert block is arranged at one end of the sliding rod, and a slot for inserting the insert block is opened on the inner sleeve.

[0018] By adopting the above technical solution, the sliding rod is pulled to slide, the second spring is compressed, and the insert block is disengaged from the slot of the inner sleeve. At this time, the inner sleeve is slid out for cleaning and then installed back after cleaning, and the disassembly and assembly operation is relatively convenient.

[0019] Optionally, an inclined surface is provided on one side of the plug block.

[0020] By adopting the above technical solution, when the inner sleeve is installed on the outer sleeve, the inner sleeve is inserted and slid along one side of the inclined surface of the insert block. When the insert block is located in the slot, the second spring presses against the insert block, and the installation operation is more convenient.

[0021] Optionally, the inner sleeve is provided with a slide groove at the side wall of the oil tank, the filter screen plate is slidably installed at the slide groove, and a plurality of the filter screen plates are connected by a connecting plate.

[0022] By adopting the above technical solution, the connection plate is pulled to drive the filter screen plate to be removed from the inner sleeve for cleaning. During installation, the filter screen plate is slidably installed in the slide groove, and the disassembly and assembly operation of the filter screen plate is relatively convenient.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The first filter and the second filter filter the impurities in the lubricating oil. The lubricating oil is lubricated at the oil tank through the oil outlet. The filter plate blocks the impurities outside the oil tank, reducing the probability of the oil outlet and the oil tank being blocked. At the same time, the outer sleeve and the inner sleeve are detachable, which is convenient for cleaning the sleeve after dust accumulation.

[0025] 2. Pull the sliding rod to slide, the second spring is compressed, and the insert is disengaged from the slot of the inner sleeve. At this time, the inner sleeve is slid out for cleaning and then reinstalled. The disassembly and assembly operation is relatively convenient.

[0026] 3. Pull the connecting plate to drive the filter plate to be removed from the inner shaft sleeve. When installing, slide the filter plate along the slide groove and install it on the inner shaft sleeve. The disassembly and assembly of the filter plate is relatively convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of this application.

[0028] Figure 2 It is a cross-sectional view of the shaft sleeve of the present application along the axial direction.

[0029] Figure 3 It is a schematic diagram of the exploded structure of the inner sleeve and the filter screen plate of the present application.

[0030] Figure 4 It is a three-dimensional structural schematic diagram of the sealing member and the filter member of the present application.

[0031] Figure 5 It is an enlarged cross-sectional view of part A of the present application.

[0032] Those skilled in the art will appreciate that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be magnified relative to other elements to help improve understanding of the embodiments of the present invention.

[0033] 1. Outer sleeve; 11. Mounting groove; 12. Liquid storage chamber; 13. Oil inlet hole; 14. Oil inlet pipe; 15. Sealing groove; 16. Sliding groove; 17. First spring; 18. Limiting groove; 2. Inner sleeve; 21. Oil groove; 22. Oil outlet hole; 23. Sliding groove; 24. Slot; 3. Sealing member; 31. Sealing plate; 32. Push rod; 4. Filter member; 41. Sliding frame; 42. First filter screen; 43. Second filter screen; 5. Filter screen plate; 51. Connecting plate; 6. Limiting member; 61. Insert block; 62. Sliding rod; 63. Second spring. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings.

[0035] The present application discloses a steel-copper bimetallic composite sleeve, referring to Figure 1 and Figure 2 , including an outer sleeve 1 and an inner sleeve 2, a mounting groove 11 is provided on one side of the outer sleeve 1, the inner sleeve 2 is slidably installed in the mounting groove 11 of the outer sleeve 1, a liquid storage chamber 12 is provided on the outer sleeve 1, an oil inlet hole 13 is provided at one end of the outer sleeve 1 and the oil inlet hole 13 is communicated with the liquid storage chamber 12, an oil inlet pipe 14 is provided at the oil inlet hole 13 of the outer sleeve 1, and when the oil is fed, the lubricating oil enters the liquid storage chamber 12 of the outer sleeve 1 through the oil inlet pipe 14 for storage.

[0036] Reference Figure 2 and Figure 3 The inner sleeve 2 is provided with an oil groove 21 and an oil outlet hole 22. The oil groove 21 is provided at the inner ring side wall of the inner sleeve 2 and is distributed along the axial direction of the inner sleeve 2. Four oil grooves 21 are provided and are provided along the circumferential direction of the inner ring of the inner sleeve 2. The oil outlet hole 22 is provided at the side wall of the inner sleeve 2 and is located at the oil groove 21. The outer sleeve 1 is provided with a through hole (not shown) corresponding to the oil outlet hole 22 at the inner ring side wall. The through hole is connected to the liquid storage chamber 12 of the outer sleeve 1. The lubricating oil in the liquid storage chamber 12 flows to the oil groove 21 through the through hole and the oil outlet hole 22 to lubricate the main shaft.

[0037] Reference Figure 3 The inner sleeve 2 is provided with a slide groove 23 at the side wall of the oil groove 21, and the slide groove 23 is distributed along the length direction of the oil groove 21. The inner sleeve 2 is slidably installed with a filter plate 5 at the slide groove 23, and the filter plate 5 is distributed along the length direction of the oil groove 21. The filter plate 5 blocks impurities outside the oil groove 21. A connecting plate 51 is provided at one end of the filter plate 5, and the connecting plate 51 is arranged in a ring shape.

[0038] Reference Figure 4 The outer sleeve 1 is provided with a sealing member 3 at the oil inlet hole 13, and the sealing member 3 includes a sealing plate 31 and a push rod 32. The outer sleeve 1 is provided with a sealing groove 15 at one side of the upper side of the oil inlet pipe 14. The sealing plate 31 is horizontally slidably installed at the sealing groove 15 of the outer sleeve 1. When the sealing plate 31 slides to the oil inlet hole 13, the sealing plate 31 closes the oil inlet hole 13.

[0039] Reference Figure 4 The push rod 32 is arranged at the side of the sealing plate 31 away from the oil inlet pipe 14, the outer sleeve 1 is provided with a sliding groove 16 on the upper side of the sealing groove 15, the upper end of the push rod 32 passes through the sliding groove 16 and is located on the outside of the outer sleeve 1, the outer sleeve 1 is provided with a first spring 17 at the sealing groove 15, and two first springs 17 are provided. One end of the first spring 17 is connected to the side of the sealing plate 31 away from the oil inlet pipe 14. When oil is fed in, the push rod 32 is pulled to drive the sealing plate 31 to slide. At this time, the oil inlet hole 13 is opened and the first spring 17 is compressed. After the oil is fed in, the first spring 17 pushes the sealing plate 31 to close the oil inlet hole 13.

[0040] Reference Figure 4, a filter 4 is arranged inside the oil inlet pipe 14, and the filter 4 includes a sliding frame 41, a first filter screen 42 and a second filter screen 43. The sliding frame 41 is inserted in the oil inlet pipe 14, and the first filter screen 42 and the second filter screen 43 are both horizontally mounted on the sliding frame 41 and distributed up and down. When the oil is fed in, the first filter screen 42 and the second filter screen 43 filter the lubricating oil in turn. The mesh aperture of the second filter screen 43 is smaller than the mesh aperture of the first filter screen 42. After being filtered by the first filter screen 42, it is filtered by the second filter screen 43 to reduce the probability of impurities being brought into the shaft sleeve along with the lubricating oil. When it is necessary to clean the first filter screen 42 and the second filter screen 43, the sliding frame 41 is taken out for cleaning.

[0041] Reference Figure 5 A limiting member 6 is provided on the outer sleeve 1, and the limiting member 6 includes an insert block 61 and a sliding rod 62. The sliding rod 62 is slidably installed on the outer sleeve 1 and one end of the sliding rod 62 is located on the outside of the outer sleeve 1. A limiting groove 18 is provided on the inner ring side wall of the outer sleeve 1. The insert block 61 is slidably installed in the limiting groove 18 and is connected to one end of the sliding rod 62.

[0042] Reference Figure 5 A second spring 63 is sleeved on the sliding rod 62, one end of the second spring 63 is connected to a side surface of the plug block 61, and the end of the second spring 63 away from the plug block 61 is connected to a side wall of the limiting groove 18. A slot 24 is provided on the outer wall of the inner sleeve 2, and an inclined surface is provided on one side of the plug block 61. When the inner sleeve 2 is installed on the outer sleeve 1, the inner sleeve 2 is inserted and slid along one side of the inclined surface of the plug block 61. When the plug block 61 is located at the slot 24, the second spring 63 presses against the plug block 61, and the position of the inner sleeve 2 is fixed.

[0043] The implementation principle of a steel-copper bimetallic composite sleeve in an embodiment of the present application is as follows: open the sealing plate 31, let oil flow from the oil inlet hole 13 to the liquid storage chamber 12, the first filter screen 42 and the second filter screen 43 filter the lubricating oil, the lubricating oil passes through the oil hole to the oil tank 21 for lubrication, the filter screen plate 5 blocks impurities outside the oil tank 21, and reduces the probability of the oil outlet hole 22 and the oil tank 21 being blocked.

[0044] When the first filter screen 42 and the second filter screen 43 need to be cleaned, the sealing plate 31 is opened, the sliding frame 41 is taken out, and the first filter screen 42 and the second filter screen 43 are cleaned.

[0045] When the inner sleeve 2 needs to be cleaned after long-term dust accumulation, the sliding rod 62 is pulled to drive the insert block 61 to disengage from the slot 24, the inner sleeve 2 is slid out, and the connecting plate 51 is pulled to drive the filter plate 5 to be removed from the inner sleeve 2 for cleaning.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel-copper bimetallic composite sleeve, comprising an outer sleeve (1) and an inner sleeve (2), wherein the inner sleeve (2) is arranged on the inner side of the outer sleeve (1) and is detachably connected to the outer sleeve (1), the outer sleeve (1) is provided with a liquid storage cavity (12), the inner sleeve (2) is provided with an oil groove (21) and an oil outlet hole (22), the oil outlet hole (22) is connected to the liquid storage cavity (12) of the outer sleeve (1), and the oil groove (21) is connected to the oil outlet hole (22), characterized in that: The inner sleeve (2) is provided with a filter screen (5) at the oil groove (21), the outer sleeve (1) is provided with an oil inlet hole (13), the outer sleeve (1) is provided with a sealing member (3) at the oil inlet hole (13), and the outer sleeve (1) is provided with a filter member (4) at the lower side of the sealing member (3).

2. The steel-copper bimetallic composite sleeve according to claim 1, characterized in that: The sealing member (3) comprises a sealing plate (31) and a push rod (32); a sealing groove (15) is provided on the outer sleeve (1) at the oil inlet hole (13); the sealing plate (31) is slidably mounted at the sealing groove (15) and seals the oil inlet hole (13); the push rod (32) is arranged on the sealing plate (31) and one end of the push rod (32) is located outside the outer sleeve (1); a first spring (17) is provided on the outer sleeve (1) at the sealing groove (15); one end of the first spring (17) is connected to one side of the sealing plate (31).

3. The steel-copper bimetallic composite sleeve according to claim 1, characterized in that: The filter element (4) comprises a sliding frame (41), a first filter screen (42) and a second filter screen (43); the outer sleeve (1) is provided with an oil inlet pipe (14) at the oil inlet hole (13); the sliding frame (41) is inserted into the oil inlet pipe (14); the first filter screen (42) and the second filter screen (43) are arranged on the sliding frame (41) and are distributed parallel to each other.

4. The steel-copper bimetallic composite sleeve according to claim 3, characterized in that: The mesh size of the second filter screen (43) is smaller than the mesh size of the first filter screen (42).

5. The steel-copper bimetallic composite sleeve according to claim 1, characterized in that: The inner side of the outer shaft sleeve (1) is provided with a mounting groove (11), the inner shaft sleeve (2) is slidably mounted in the mounting groove (11), and the outer shaft sleeve (1) is provided with a limiting member (6) for fixing the inner shaft sleeve (2).

6. The steel-copper bimetallic composite sleeve according to claim 5, characterized in that: The limiting member (6) comprises an insert block (61) and a sliding rod (62), wherein the sliding rod (62) is slidably mounted on the outer sleeve (1), a second spring (63) is sleeved on the sliding rod (62), the insert block (61) is arranged at one end of the sliding rod (62), and a slot (24) for inserting the insert block (61) is provided on the inner sleeve (2).

7. The steel-copper bimetallic composite sleeve according to claim 6, characterized in that: An inclined surface is provided on one side of the insert block (61).

8. The steel-copper bimetallic composite sleeve according to claim 1, characterized in that: The inner shaft sleeve (2) is provided with a slide groove (23) at the side wall of the oil groove (21), the filter screen plate (5) is slidably mounted at the slide groove (23), and a plurality of the filter screen plates (5) are connected via a connecting plate (51).

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