Copper alloy wear-resistant shaft sleeve

Abstract

The utility model discloses a copper alloy wear-resistant shaft sleeve, which comprises an outer shaft sleeve, an inner shaft sleeve is arranged on the inner wall of the outer shaft sleeve, the inner shaft sleeve comprises a plurality of lantern rings and a fixing ring, one end of each lantern ring is fixedly connected with a boss, the other end of each lantern ring is provided with a groove, the boss is buckled with the groove, and the fixing ring is fixed on the outer shaft sleeve. The bosses and the grooves which are buckled between the two lantern rings are fixed through connecting bolts, one ends of the lantern rings which are connected with each other are detachably connected with the inner wall of the outer shaft sleeve, the other ends of the lantern rings are connected with fixing rings, the fixing rings are detachably connected with the outer shaft sleeve, and the inner walls of the lantern rings are provided with a plurality of clamping grooves which are arranged around the axis of the outer shaft sleeve in an array mode. The inner wall of the clamping groove is in sliding connection with a wear-resistant convex rod; according to the utility model, the wear-resistant convex rod and the clamping groove are arranged, only the wear-resistant convex rod surface is in contact with the surface of the shaft, the contact surface is small, the friction is reduced, and the wear-resistant convex rod can be pulled out from the clamping groove for replacement after being worn.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft sleeves, in particular to a copper alloy wear-resistant shaft sleeve. Background Art

[0002] The shaft sleeve is a cylindrical mechanical part that is sleeved on the rotating shaft. It is a component of the sliding bearing and a component that fixes and reduces the load friction coefficient during mechanical transmission. Generally speaking, the shaft sleeve and the bearing seat adopt an interference fit, and the shaft adopts a clearance fit. In order to increase the service life of the shaft sleeve in mechanical equipment, copper alloy shaft sleeves are usually used. The wear resistance and corrosion resistance of copper alloy can effectively increase the service life of the shaft sleeve.

[0003] After searching, the Chinese patent application number 202220326102.2 discloses a copper alloy sleeve for a ball mill that is easy to replace, including a liquid storage tank, which is opened between the inner sleeve and the outer sleeve; a rotating groove, which is opened at the top of the outer sleeve, and the interior of the rotating groove is rotatably connected to a rotating ring, the top of the rotating ring is fixedly connected to a connecting ring, and the bottom of the connecting ring is fixedly connected to a limited measuring cylinder on the inner side of the rotating ring.

[0004] This patent opens a liquid storage tank between the outer sleeve and the inner sleeve, and sets a limiting cylinder for rotation inside the liquid storage tank. The limiting cylinder rotates in the liquid storage tank, so that the oil is gradually injected through the connecting hole, thereby avoiding the injected oil from directly and completely contacting the bearing and the sleeve, effectively reducing the oil consumption; but the contact area between the inner sleeve and the shaft is large, the friction is large, and the service life is reduced. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a copper alloy wear-resistant shaft sleeve.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A copper alloy wear-resistant sleeve comprises an outer sleeve, an inner sleeve is provided on the inner wall of the outer sleeve, the inner sleeve comprises a plurality of rings and a fixing ring, one end of the ring is fixedly connected to a boss, the other end of the ring is provided with a groove, the boss is buckled with the groove, the boss and the groove buckled between the two rings are fixed by connecting bolts, one end of the plurality of rings connected to each other is detachably connected to the inner wall of the outer sleeve, the other end of the ring is connected to the fixing ring, the fixing ring is detachably connected to the outer sleeve, the inner wall of the ring is provided with a plurality of slots arranged in an array around the axis of the outer sleeve, and the inner wall of the slot is slidably connected to a wear-resistant protruding rod.

[0008] As a further solution of the present invention: an inner wall of one end of the outer sleeve and an inner wall of the fixed ring are both fixed with a blocking ring, and the blocking ring is limitedly matched with the wear-resistant protruding rod.

[0009] As a further solution of the present invention: an oil storage cavity is provided between the inner wall of the outer sleeve and the inner sleeve, and oil storage cotton is placed inside the oil storage cavity.

[0010] As a further solution of the present invention: an outer wall of one end of the outer sleeve is provided with a refueling port connected to the oil storage cavity, and a lubrication groove connected to the oil storage cavity is opened on the surface of the wear-resistant protruding rod.

[0011] As a further solution of the present invention: the blocking ring is connected to the fixing ring and the outer sleeve via a plurality of fixing components, the fixing components including an avoidance groove and a rotating rod, the avoidance groove is provided in the groove and the inner part of the outer sleeve.

[0012] As a further solution of the present invention: the rotating rod is connected to the outer sleeve and the interior of the fixed ring in a damped rotation manner, and the rotating rod is entirely lower than the surface of the outer sleeve or the fixed ring.

[0013] As a further solution of the present invention: one side of the rotating rod is connected to a limiting block, the side of the blocking ring is provided with a limiting groove that cooperates with the limiting block, and one end of the rotating rod is provided with a slot for inserting an external tool into the rotation.

[0014] Compared with the prior art, the present invention provides a copper alloy wear-resistant sleeve with the following beneficial effects:

[0015] The utility model is provided with a wear-resistant convex rod and a clamping groove, so that only the surface of the wear-resistant convex rod contacts the shaft surface, the contact surface is small, friction is reduced, and the wear-resistant convex rod can be pulled out of the clamping groove for replacement after it is worn;

[0016] By providing an outer sleeve and an inner sleeve, when the outer sleeve or the inner sleeve is damaged and needs to be replaced, the broken collar in the outer sleeve or the inner sleeve can be replaced separately without replacing the entire sleeve, thereby reducing replacement losses;

[0017] By providing a fixing assembly, the blocking ring can be quickly disassembled and assembled, making it easy to replace the wear-resistant protruding rod.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2It is a schematic diagram of the internal structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the partial structure of the inner sleeve of the utility model.

[0022] Figure 4 This is an enlarged structural diagram of point A of the present invention.

[0023] Figure 5 This is a schematic diagram of the connection structure between the wear-resistant protruding rod and the inner shaft sleeve of the utility model.

[0024] Figure 6 This is a schematic diagram of the connection structure between the blocking ring and the outer sleeve of the utility model.

[0025] In the figure: 1. Outer sleeve; 2. Inner sleeve; 3. Wear-resistant protrusion; 4. Ring; 5. Connecting bolt; 6. Boss; 7. Groove; 8. Oil filling port; 9. Oil storage chamber; 10. Blocking ring; 11. Slot; 12. Lubrication groove; 13. Avoidance groove; 14. Rotating rod; 15. Limit block; 16. Limit groove; 17. Fixed ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example 1

[0028] A copper alloy wear-resistant sleeve, such as Figures 1 to 5As shown, it includes an outer sleeve 1, an inner sleeve 2 is provided on the inner wall of the outer sleeve 1, and the inner sleeve 2 includes multiple collars 4 and a fixing ring 17. One end of the collar 4 is fixedly connected to a boss 6, and the other end of the collar 4 is provided with a groove 7. The boss 6 is buckled with the groove 7, and the boss 6 and the groove 7 buckled between the two collars 4 are fixed by a connecting bolt 5. One end of the multiple collars 4 connected to each other is detachably connected to the inner wall of the outer sleeve 1, and the other end of the collar 4 is connected to a fixing ring 17. The fixing ring 17 is detachably connected to the outer sleeve 1, and the inner wall of the collar 4 is provided with multiple collars surrounding the outer sleeve. 1 axis array arrangement of the card slot 11, the inner wall of the card slot 11 is slidably connected with the wear-resistant protrusion 3, the outer sleeve 1, the inner sleeve 2 and the wear-resistant protrusion 3 are all made of copper alloy, the inner wall of one end of the outer sleeve 1 and the inner wall of the fixed ring 17 are fixed with a blocking ring 10, the blocking ring 10 and the wear-resistant protrusion 3 are limited and matched, an oil storage cavity 9 is provided between the inner wall of the outer sleeve 1 and the inner sleeve 2, oil storage cotton is placed inside the oil storage cavity 9, the outer wall of one end of the outer sleeve 1 is provided with a refueling port 8 connected to the oil storage cavity 9, and the surface of the wear-resistant protrusion 3 is provided with a lubrication groove 12 connected to the oil storage cavity 9.

[0029] During use, multiple rings 4 are connected and fixed in sequence through connecting bolts 5, and the fixing ring 17 is fixed to one end of the multiple rings 4 assembly to form an inner sleeve 2, and then the inner sleeve 2 is inserted into the outer sleeve 1. After the inner sleeve 2 is fully inserted, the fixing ring 17 is connected to the outer sleeve 1 to complete the assembly, and then the wear-resistant protrusion 3 is inserted into the groove 11 in sequence, and the blocking ring 10 is installed to the inner wall of one end of the outer sleeve 1 and the inner wall of the fixing ring 17, the wear-resistant protrusion 3 is limited and fixed, and then the assembled assembly is installed. After the installation is completed, lubricating oil is poured into the oil storage chamber 9 from the refueling port 8, and the lubricating oil flows out from the lubrication groove 12 for lubrication. In the assembly, only the surface of the wear-resistant protrusion 3 is in contact with the shaft surface, and the contact surface is small. The blocking ring 10 blocks the outflow of lubricating oil and reduces the entry of dust.

[0030] By providing the wear-resistant cam 3 and the slot 11, only the surface of the wear-resistant cam 3 contacts the shaft surface, the contact surface is small, and friction is reduced. After the wear-resistant cam 3 is worn, the wear-resistant cam 3 can be pulled out of the slot 11 for replacement.

[0031] By providing the outer sleeve 1 and the inner sleeve 2, when the outer sleeve 1 or the inner sleeve 2 is damaged and needs to be replaced, the broken ring 4 in the outer sleeve 1 or the inner sleeve 2 can be replaced separately without replacing the entire sleeve, thereby reducing replacement loss. Example 2

[0032] A copper alloy wear-resistant sleeve, based on Example 1, this embodiment makes the following improvements, such as Figure 6As shown, the blocking ring 10 is connected to the fixing ring 17 and the outer sleeve 1 through multiple fixing components, and the fixing components include an avoidance groove 13 and a rotating rod 14. The avoidance groove 13 is opened in the groove 7 and the outer sleeve 1, and the rotating rod 14 is connected to the outer sleeve 1 and the fixing ring 17 for damping rotation, and the rotating rod 14 is lower than the surface of the outer sleeve 1 or the fixing ring 17 as a whole. One side of the rotating rod 14 is connected to the limiting block 15, and the side of the blocking ring 10 is provided with a limiting groove 16 that cooperates with the limiting block 15. One end of the rotating rod 14 is provided with a slot for inserting external tools, and the slot can be in the shape of a cross, a straight line, etc.

[0033] When replacing the wear-resistant protrusion 3, the rotating rod 14 is rotated by an external tool to make the rotating rod 14 drive the limit block 15 to rotate, so that the limit block 15 moves into the avoidance groove 13. At this time, the blocking ring 10 is no longer limited by the limit block 15, and the blocking ring 10 can be removed, the wear-resistant protrusion 3 can be pulled out and replaced, and then the blocking ring 10 is put back, and the rotating rod 14 is rotated to make the limit block 15 enter the limit groove 16 to limit the blocking ring 10. The steps for installing the blocking ring 10 are the same as the steps for installing the blocking ring 10 in the above steps.

[0034] By providing the fixing assembly, the blocking ring 10 can be quickly disassembled and assembled, which facilitates the replacement of the wear-resistant protruding rod 3.

[0035] Working principle: When in use, multiple collars 4 are connected and fixed in sequence through connecting bolts 5, and the fixing ring 17 is fixed to one end of the multiple collars 4 assembly to form an inner sleeve 2, and then the inner sleeve 2 is inserted into the outer sleeve 1. After the inner sleeve 2 is fully inserted, the fixing ring 17 is connected to the outer sleeve 1 to complete the assembly, and then the wear-resistant protrusion 3 is inserted into the groove 11 in sequence, and the blocking ring 10 is installed to the inner wall of one end of the outer sleeve 1 and the inner wall of the fixing ring 17, and the wear-resistant protrusion 3 is limited and fixed, and then the assembled assembly is installed. After the installation is completed, lubricating oil is poured into the oil storage chamber 9 from the refueling port 8, and the lubricating oil flows out from the lubrication groove 12 for lubrication. The only surface of the wear-resistant protrusion 3 in the assembly is in contact with the shaft surface, and the contact surface is small. The blocking ring 10 blocks the outflow of lubricating oil and reduces the entry of dust. When replacing the wear-resistant protrusion 3, the rotating rod 14 is rotated by an external tool to make the rotating rod 14 drive the limit block 15 to rotate, so that the limit block 15 moves into the avoidance groove 13. At this time, the blocking ring 10 is no longer limited by the limit block 15, and the blocking ring 10 can be removed, the wear-resistant protrusion 3 can be pulled out and replaced, and then the blocking ring 10 is put back, and the rotating rod 14 is rotated to make the limit block 15 enter the limit groove 16 to limit the blocking ring 10. The steps for installing the blocking ring 10 are the same as the steps for installing the blocking ring 10 in the above steps.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A copper alloy wear-resistant sleeve, comprising an outer sleeve (1), characterized in that: The inner wall of the outer sleeve (1) is provided with an inner sleeve (2), and the inner sleeve (2) includes a plurality of collars (4) and a fixing ring (17), one end of the collar (4) is fixedly connected to a boss (6), and the other end of the collar (4) is provided with a groove (7), the boss (6) and the groove (7) are buckled, and the boss (6) and the groove (7) buckled between the two collars (4) are fixed by a connecting bolt (5), one end of the plurality of collars (4) connected to each other is detachably connected to the inner wall of the outer sleeve (1), and the other end of the collar (4) is connected to a fixing ring (17), and the fixing ring (17) is detachably connected to the outer sleeve (1), and the inner wall of the collar (4) is provided with a plurality of slots (11) arranged in an array around the axis of the outer sleeve (1), and the inner wall of the slot (11) is slidably connected to a wear-resistant protruding rod (3).

2. A copper alloy wear-resistant sleeve according to claim 1, characterized in that: A blocking ring (10) is fixed to the inner wall of one end of the outer sleeve (1) and the inner wall of the fixing ring (17), and the blocking ring (10) is in position-limiting cooperation with the wear-resistant protruding rod (3).

3. The copper alloy wear-resistant sleeve according to claim 1, characterized in that: An oil storage cavity (9) is provided between the inner wall of the outer shaft sleeve (1) and the inner shaft sleeve (2), and oil storage cotton is placed inside the oil storage cavity (9).

4. The copper alloy wear-resistant sleeve according to claim 3, characterized in that: An oil filling port (8) communicating with the oil storage chamber (9) is provided on the outer wall of one end of the outer sleeve (1), and a lubrication groove (12) communicating with the oil storage chamber (9) is provided on the surface of the wear-resistant protruding rod (3).

5. The copper alloy wear-resistant sleeve according to claim 2, characterized in that: The blocking ring (10) is connected to the fixing ring (17) and the outer sleeve (1) via a plurality of fixing components, the fixing components including an avoidance groove (13) and a rotating rod (14), the avoidance groove (13) being provided inside the groove (7) and the outer sleeve (1).

6. The copper alloy wear-resistant sleeve according to claim 5, characterized in that: The rotating rod (14) is connected to the inside of the outer sleeve (1) and the fixed ring (17) in a damped rotation manner, and the rotating rod (14) is entirely lower than the surface of the outer sleeve (1) or the fixed ring (17).

7. The copper alloy wear-resistant sleeve according to claim 6, characterized in that: One side of the rotating rod (14) is connected to a limiting block (15), a side of the blocking ring (10) is provided with a limiting groove (16) that cooperates with the limiting block (15), and one end of the rotating rod (14) is provided with a slot for inserting an external tool into the rotating rod.

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