A bearing puller

Abstract

The utility model discloses a bearing dismounting tool belongs to aluminium foil processing equipment technical field. Including rectangular frame and jack, rectangular frame includes two long boards and two side frame edges, two long boards are along left and right and its respectively are front long board and rear long board, and the front long board is the channel steel of opening to the front, and the long round hole is established on it along left and right, and the slot can accommodate the outer end of the conical part of the rubber roll end, and the long round hole is located in the middle of the front long board, and the diameter of one end is greater than the outer diameter of bearing, and the diameter of the other end is greater than the diameter of the rotating shaft but less than the outer diameter of the inner ring of bearing. Will not damage the bearing, and is no opening structure, and the width of front long board is small, and the thickness of tool is low. Specifically, for the special structure of conical part, the front long board is designed as the channel steel of opening to the front, and the strength is improved. The long round hole is arranged along the direction of the front long board, and there is no need to open, and the front long board also does not need to be set up wide. Simple production, can produce through channel steel and round steel only.

Description

Technical Field

[0001] This utility model belongs to the technical field of aluminum foil processing equipment, and specifically relates to a bearing disassembly tool, particularly a bearing disassembly tool for the flattening roller of a precision cutting machine. Background Technology

[0002] Lithium-ion batteries possess outstanding advantages such as high specific energy, high cycle stability, low self-discharge rate, no memory effect, and cleanliness, making them the best-performing rechargeable battery system currently available. Small lithium-ion batteries have completely replaced nickel-cadmium and nickel-metal hydride batteries in portable electronic products, while large-capacity lithium-ion power batteries are showing strong momentum in replacing lead-acid batteries in aerospace, transportation, and other intermittent clean energy storage applications. Lithium-ion batteries use aluminum foil as the positive electrode current collector, and with the continuous expansion of the lithium-ion battery market, the demand potential for aluminum foil is significant.

[0003] Before the aluminum foil (double-zero aluminum foil) is processed, it needs to be separated into two layers and cut to a specified width using a precision cutter. The structure of the precision cutter can be found in patent CN202211385000.9, which discloses a composite copper foil slitting device, including: a frame with a main board; an unwinding seat slidably mounted on the frame, the unwinding seat having a fixedly connected first shaft seat; an unwinding shaft movably mounted on the first shaft seat; a fixedly connected first gear at one end of the unwinding shaft; and a first motor fixedly mounted on the unwinding seat, the motor shaft of the first motor and the unwinding shaft being on the same axis. The first motor has a gear sleeve on its motor shaft; a first gear is slidably inserted into the gear sleeve and meshes with it; a cutter roller is movably mounted on the main board; a cutter guide rail is parallel to the cutter roller and has at least one slitting cutter mounted on it; the cutter disc of the slitting cutter abuts against the cutter roller; at least one main take-up shaft is movably mounted on the main board and parallel to the cutter roller; at least one waste edge take-up shaft is movably mounted on the main board and parallel to the main take-up shaft. The main board has a flattening roller movably connected to it, which is parallel to and abuts against the main take-up shaft; a second shaft seat has a take-up groove inside it, and the end of the main take-up shaft is movably mounted in the take-up groove; a second motor is fixedly mounted on the main board, and its motor shaft is fixedly connected to the main take-up shaft.

[0004] Typically, a precision cutting machine has two flattening rollers; the rollers have an adhesive layer on their surface. Because aluminum foil requires very high precision, the flattening rollers need to be removed periodically and the adhesive layer processed to ensure its centering and smoothness.

[0005] likeFigure 1 As shown, this is a schematic diagram of the structure of the flattening roller 1. The flattening roller 1 has a conical part 3 (a truncated cone structure) with a larger inner diameter and a smaller outer diameter at both ends. A rotating shaft 2 is coaxially provided at the outer end of the conical part 3, and a bearing 4 is coaxially provided on the rotating shaft 2.

[0006] During the processing of the flattening roller 1, it is necessary to remove the flattening roller 1 from the precision cutting machine, and then remove the two bearings 4 at both ends. In the prior art, the bearings are usually removed by pullers or hydraulic pullers. The aforementioned structure usually hooks onto the outer ring of the bearing, which can easily cause the bearing to come apart during the removal process. Because the precision cutting machine has high precision requirements for the flattening roller, under normal circumstances, if the bearing comes apart, the bearing cannot be reused (manual reassembly).

[0007] In addition, existing technologies provide various bearing disassembly tools. For example, patent application number CN201520457223.0 discloses a bearing and coupling disassembly assembly tool, including a rectangular frame composed of two long plates on both sides and a short plate connecting the rear ends of the two long plates. Connecting steel plates are fixed to the front ends of the two long plates on both sides of the rectangular frame, and a detachable square flange plate is connected between the connecting steel plates. The square flange plate has a U-shaped hole. An arc-shaped steel plate perpendicular to the short plate is provided on the inner side of the short plate of the rectangular frame, and a jack is provided on the arc-shaped steel plate. The applicant discovered the following problems when using the aforementioned tool: 1. Because it is necessary to set up a U-shaped hole (vertical direction) and have an open structure (U-shaped hole), the width of the long board needs to be large (to ensure the setting of the U-shaped hole and the strength of the long board), which results in the height of the entire tool being relatively high, making it difficult to store. 2. Due to the open structure, the strength of the long plate is reduced (especially the part near the opening), so it is necessary to add reinforcing ribs or increase the thickness of the long plate, which will significantly increase the cost and the total weight of the tool. Utility Model Content

[0008] To address the aforementioned problems, this utility model provides a bearing disassembly tool that does not damage the bearing, has a closed structure, and features a narrow front long plate. The technical solution is as follows: This utility model embodiment provides a bearing disassembly tool, including a rectangular frame and a jack 7. The rectangular frame includes two long plates 5 arranged side by side and two side frame edges 6 arranged side by side. The two long plates 5 are arranged in the left and right direction and are respectively the front long plate 51 and the rear long plate 52. The front long plate 51 is a channel steel with an open front and an elongated hole 8 on its upper side in the left and right direction. Its slot can accommodate the outer end of the tapered part 3 of the end of the rubber roller 1. The elongated hole 8 is located in the middle of the front long plate 51. The diameter of one end of the hole is larger than the outer diameter of the bearing 4, and the diameter of the other end is larger than the diameter of the shaft 2 but smaller than the outer diameter of the inner ring of the bearing 4.

[0009] In this embodiment of the invention, the rear long plate 52 is a straight plate or a channel steel with a rearward opening.

[0010] Preferably, in this embodiment of the present invention, the rear long plate 52 is a channel steel with a rearward opening.

[0011] Preferably, in this embodiment of the present invention, a reinforcing plate 9 is provided between the upper or lower sides of the two long plates 5; the reinforcing plate 9 is arranged in the front-back direction, located on the side of the jack 7 away from the elongated hole 8, and located between the jack 7 and the corresponding side frame edge 6.

[0012] In this embodiment of the utility model, the two side frame edges 6 are respectively located at the left and right ends of the long plate 5, and are arranged along the front and back direction. They are round steel.

[0013] In this embodiment of the utility model, the jack 7 is arranged in the front-rear direction, with its rear end abutting against the middle of the front side of the rear long plate 52, and the diameter of its telescopic rod is smaller than the inner diameter of the inner ring of the bearing 4 and its front end abutting against the outer end of the rotating shaft 2.

[0014] Specifically, in this embodiment of the present invention, the elongated hole 8 is composed of a large hole 81, a small hole 82, and a rectangular hole 83 between them. The large hole 81 and the small hole 82 are arranged side by side. The diameter of the large hole 81 is larger than the outer diameter of the bearing 4 and its diameter is larger than the diameter of the small hole 82. The small hole 82 is located in the middle of the front long plate 51, and its diameter is larger than the diameter of the rotating shaft 2 but smaller than the outer diameter of the inner ring of the bearing 4. The rectangular hole 83 is arranged in the left and right direction, and its width is the same as the diameter of the small hole 82. The upper and lower ends of the small hole 82 on both sides are tangent to each other.

[0015] More specifically, in this embodiment of the present invention, the diameter of the large hole 81 is 80mm, the diameter of the small hole 82 is 40mm, and the length of the rectangular hole 83 is 60-100mm.

[0016] In this embodiment of the invention, the width of the front long plate 51 is 90-120mm.

[0017] This patent offers the following advantages: This utility model provides a bearing disassembly tool that does not damage the bearing (achieving virtually 100% non-destructive removal). It features a non-opening structure with a narrow front plate (the width of the front plate is the diameter of the large hole plus 15-40mm), resulting in a thin tool that is easy to store. Specifically, for the special structure of the tapered section, the front plate is designed as a forward-opening channel steel, increasing strength (no other reinforcing structures are needed on the front plate). The elongated hole is positioned along the direction of the front plate, eliminating the need for an opening and widening of the front plate. Production is simple, requiring only channel steel and round steel. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the flattening roller structure; Figure 2 This is a schematic diagram showing the result of a bearing disassembly tool provided in an embodiment of this utility model; Figure 3 This is a top view of a bearing disassembly tool; Figure 4 This is a schematic diagram showing the result of another bearing disassembly tool provided in this embodiment of the utility model; Figure 5 This is a top view of another bearing removal tool; Figure 6 This is a front view of the front long plate of another bearing removal tool; Figure 7 This is a rear view of the front long plate of another bearing removal tool; Figure 8 This is a schematic diagram of another type of front long plate structure; Figure 9 This is a comparison chart of the number of damaged bearings before and after using the tool; Figure 10 This is a comparison chart showing the number of damaged bearings and the amount saved before and after using this tool.

[0019] In the diagram: 1. Flattening roller, 2. Rotating shaft, 3. Conical part, 4. Bearing, 5. Long plate, 6. Side frame, 7. Jack, 8. Long oval hole, 9. Reinforcing plate; 51. Long board at the front; 52. Long board at the back. 81 Large hole, 82 Small hole, 83 Rectangular hole. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0021] Example 1 See Figure 2-8Example 1 provides a bearing disassembly tool, including a rectangular frame and a jack 7, which is detachably mounted. The rectangular frame includes two long plates 5 arranged side-by-side and two side frames 6 arranged side-by-side. The two long plates 5 are arranged in the left-right direction and are respectively the front long plate 51 and the rear long plate 52. The two side frames 6 are respectively located at the left and right ends of the long plates 5 and are arranged in the front-back direction, specifically made of round steel. The front long plate 51 is a channel steel with an opening facing forward and an elongated hole 8 on its upper side in the left-right direction. The slot can accommodate the outer end (specifically the rear end) of the tapered part 3 at the end of the rubber roller 1. The rear long plate 52 is a straight plate (with high strength due to the absence of holes) or a channel steel with an opening facing backward. The elongated hole 8 is located in the middle of the front long plate 51. The diameter of one end of the hole is larger than the outer diameter of the bearing 4 to allow the bearing 4 to pass through, and the diameter of the other end is larger than the diameter of the rotating shaft 2 but smaller than the outer diameter of the inner ring of the bearing 4 to allow it to rest against the inner ring of the bearing 4. When removing the bearing, jack 7 is positioned along the front-rear direction, with its rear end resting against the middle of the front side of the rear long plate 52. The diameter of its telescopic rod is smaller than the inner diameter of the inner ring of the bearing 4, and its front end rests against the outer end (specifically the rear end) of the rotating shaft 2. By extending and retracting jack 7, the bearing 4 is removed from the rotating shaft 2.

[0022] Example 2 See Figure 4-8 Example 2 provides a bearing disassembly tool, the structure of which is basically the same as that of Example 1, except that the rear long plate 52 in this example is a channel steel with a rearward opening to ensure the strength of the rear long plate 52.

[0023] Example 3 See Figure 3-8 Example 3 provides a bearing disassembly tool, the structure of which is basically the same as that of Example 1, except that: in this example, a reinforcing plate 9 is provided between the upper or lower sides of the two long plates 5. The reinforcing plate 9 is arranged in the front-back direction, located on the side of the jack 7 away from the elongated hole 8 (left or right side), between the jack 7 and the corresponding side frame edge 6, and is specifically a rectangular steel plate.

[0024] Example 4 See Figure 6-8Example 4 provides a bearing disassembly tool, whose structure is basically the same as that of Example 3, except that: in this example, the elongated hole 8 is composed of a large hole 81, a small hole 82, and a rectangular hole 83 in between. The large hole 81 and the small hole 82 are arranged side by side, and the diameter of the large hole 81 is larger than the outer diameter of the bearing 4 and larger than the diameter of the small hole 82. The small hole 82 is located in the middle of the front long plate 51, and its diameter is larger than the diameter of the rotating shaft 2 but smaller than the outer diameter of the inner ring of the bearing 4. The rectangular hole 83 is arranged in the left-right direction, and its width is the same as the diameter of the small hole 82. The upper and lower ends of the small hole 82 on both sides are tangent. Further, the width of the front long plate 51 is the diameter of the large hole 81 plus 15-40 mm.

[0025] Example 5 See Figure 6-7 Example 5 provides a bearing disassembly tool, whose structure is basically the same as that of Example 4, except that: in this example, the large hole 81 is located to the left of the small hole 82, and the reinforcing plate 9 is located between the small hole 82 and the right side frame 6.

[0026] Example 6 See Figure 8 Example 6 provides a bearing disassembly tool, whose structure is basically the same as that of Example 1, except that the elongated hole 8 in this example consists of a large hole, a small hole, and a flared hole in between, with the width of the flared hole gradually decreasing from the large hole to the small hole. Of course, the elongated hole 8 can also be other structures, such as a spindle-shaped layer.

[0027] Example 7 Example 7 provides a bearing disassembly tool, the structure of which is basically the same as that of Example 4, except that the bearing 4 in this example is model 22207 (size 72mm). 35mm (23mm). Therefore, the diameter of the large hole 81 is 80mm, the diameter of the small hole 82 is 40mm, and the length of the rectangular hole 83 is 60-100mm. The groove width of the front long plate 51 is 90-120mm.

[0028] Example 8 Example 8 provides a bearing disassembly tool, whose structure is basically the same as that of Example 4, except that the bearing 4 in this example is model 22207. The diameter of the large hole 81 is 80mm, the diameter of the small hole 82 is 40mm, and the length of the rectangular hole 83 is 80mm. The front long plate 51 and the rear long plate 52 are the same, with a steel plate thickness of 10mm and a groove depth of 40mm. The width of the front long plate 51 is 100mm, and its length is 320mm. The distance between the front long plate 51 and the rear long plate 52 is 310mm, and the diameter of the side frame edge 6 is 25mm. The distance between the axes of the two side frame edges 6 is 280mm. The jack 7 has a pressure of 2 tons, a maximum extension stroke of 110mm, and is a screw jack.

[0029] Before the improvement, the outer ring of bearing 4 was pulled to remove bearing 4. The effects before and after the improvement are as follows: Figure 9 and 10 As shown in the production verification, the bearing will not be damaged when using this tool and can be reused repeatedly.

[0030] Two bearings on each flattening roller The bearing costs 280 yuan each, totaling 560 yuan; two flattening rollers need to be replaced each time. The cost of a single roller bearing is 560 yuan, totaling 1120 yuan. The flattening roller is replaced on average every 3 days, for a total of 10 replacements per month. Assuming all bearings fail, the monthly cost reduction for bearing failures would be 10 times. 1120 yuan = 11200 yuan; the annual savings are: 11200 yuan. 12 months = 134,400 yuan.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing disassembly tool, comprising a rectangular frame and a jack (7), wherein the rectangular frame comprises two long plates (5) arranged side by side front to back and two side frames (6) arranged side by side left to right, the two long plates (5) being arranged in the left-right direction and being a front long plate (51) and a rear long plate (52) respectively; characterized in that, The front long plate (51) is a channel steel with an open front and an elongated hole (8) on its upper edge in the left and right directions. The slot can accommodate the outer end of the tapered part (3) at the end of the rubber roller (1). The elongated hole (8) is located in the middle of the front long plate (51). The diameter of one end of the hole is larger than the outer diameter of the bearing (4), and the diameter of the other end is larger than the diameter of the shaft (2) but smaller than the outer diameter of the inner ring of the bearing (4).

2. The bearing disassembly tool according to claim 1, characterized in that, The rear long plate (52) is a straight plate or a channel steel with a rearward opening.

3. The bearing disassembly tool according to claim 1, characterized in that, The rear long plate (52) is a channel steel with a rearward opening.

4. The bearing disassembly tool according to claim 1, characterized in that, A reinforcing plate (9) is provided between the upper or lower sides of the two long plates (5); the reinforcing plate (9) is arranged in the front-back direction, and is located on the side of the jack (7) away from the elongated hole (8), and is located between the jack (7) and the side frame edge (6) on the corresponding side.

5. The bearing disassembly tool according to claim 1, characterized in that, Two side frame edges (6) are respectively located at the left and right ends of the long plate (5), and are arranged along the front and back direction. They are round steel.

6. The bearing disassembly tool according to claim 1, characterized in that, The jack (7) is arranged in the front-rear direction, with its rear end abutting against the middle of the front side of the rear long plate (52), and the diameter of its telescopic rod is smaller than the inner diameter of the inner ring of the bearing (4) and its front end abutting against the outer end of the rotating shaft (2).

7. The bearing disassembly tool according to claim 1, characterized in that, The elongated hole (8) is composed of a large hole (81), a small hole (82) and a rectangular hole (83) between them. The large hole (81) and the small hole (82) are arranged side by side. The diameter of the large hole (81) is greater than the outer diameter of the bearing (4) and its diameter is greater than the diameter of the small hole (82). The small hole (82) is located in the middle of the front long plate (51). Its diameter is greater than the diameter of the rotating shaft (2) but smaller than the outer diameter of the inner ring of the bearing (4). The rectangular hole (83) is arranged in the left and right direction. Its width is the same as the diameter of the small hole (82). The upper and lower ends of the small holes (82) on its upper and lower sides are tangent.

8. The bearing disassembly tool according to claim 7, characterized in that, The diameter of the large hole (81) is 80 mm, the diameter of the small hole (82) is 40 mm, and the length of the rectangular hole (83) is 60-100 mm.

9. The bearing disassembly tool according to claim 8, characterized in that, The width of the front long plate (51) is 90-120mm.

Images