Tool for replacing aluminum seat bearing of MDO stretching roller

Abstract

The utility model discloses an MDO stretching roller aluminum seat bearing replacing tool which comprises a sliding stroke pipe, a welding flange pipe is detachably arranged at the end of the sliding stroke pipe, an impact pipe is movably arranged on the peripheral face of the sliding stroke pipe in a sleeved mode, and handles are detachably arranged on the surface of the sliding stroke pipe and the surface of the impact pipe. The aluminum seat bearing replacing device is simple in structure, through the arrangement of the sliding stroke pipe, the welding flange pipe and the impact pipe, the aluminum seat bearing is replaced under the condition that a stretching roller, an aluminum seat and accessories of the aluminum seat are not detached, time consumption can be controlled within 6 hours through practice, the influence of bearing replacement on productivity is reduced, meanwhile, the phenomenon that other parts need to be detached when the bearing is replaced is avoided, and production efficiency is improved. And the risk of part damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing replacement auxiliary tools, in particular to an MDO stretching roller aluminum seat bearing replacement tool. Background Art

[0002] The lithium battery separator is a core component in lithium-ion batteries and is located between the positive and negative electrodes of the battery. Its main functions and characteristics include: the separator acts as an insulator for electrons, preventing the direct transfer of electrons between the positive and negative electrodes and preventing internal short circuits in the battery. At the same time, it must be a good conductor of lithium ions, allowing lithium ions to pass freely during charging and discharging to ensure the normal progress of electrochemical reactions. During the production process of lithium battery separators, multiple stretching rollers are required, where the stretching rollers are connected to the aluminum seat through bearings and fixed to the corresponding production line through the aluminum seat.

[0003] However, due to the interference fit between the bearing and the aluminum seat, the bearing cannot be pulled out from the inside of the aluminum seat for replacement by a puller or other tooling. Usually, when replacing this bearing, the stretching roller, the aluminum seat and its accessories need to be removed together, and the bearing needs to be replaced and then reinstalled. Too many parts need to be disassembled, and the risk of damaging the parts is high. In addition, the stretching roller is heavy, and a hoisting tool is required to remove it. The hoisting space is small and it is easy to damage other equipment. This not only increases the risk of the operation, but also causes a long continuous downtime of the entire replacement process equipment (the conventional replacement time takes 48 hours), which will affect the production capacity of parts. For this reason, an MDO stretching roller aluminum seat bearing replacement tool is proposed. Utility Model Content

[0004] The utility model aims to provide a MDO stretching roller aluminum seat bearing replacement tool to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an MDO stretching roller aluminum seat bearing replacement tool, comprising a sliding stroke tube, the end of which is detachably provided with a welded flange tube, an impact tube is movably sleeved on the outer circumference of the sliding stroke tube, and handles are detachably provided on the surfaces of the sliding stroke tube and the impact tube.

[0006] As a further solution of the utility model: the sliding travel tube includes a pipeline and a fixing plate and a connecting plate respectively arranged at both ends of the pipeline, and the end surface of the connecting plate near the four corners are provided with through holes.

[0007] As a further solution of the utility model: the welded flange pipe includes a dismantling plate adapted to the connecting plate, the end face of the dismantling plate is installed with a plug-in tube plugged into the inside of the pipeline, and the end face of the dismantling plate away from the plug-in tube is installed with a welding pipe.

[0008] As a further solution of the utility model: the areas near the four corners of the dismantling plate end surface are all provided with internal threaded holes, and each threaded hole is concentrically arranged with each through hole.

[0009] As a further solution of the utility model: bolts are arranged in the through holes of the fixing plate, and the ends of the bolts pass through the through holes and are threadedly connected with the internal threaded holes.

[0010] As a further solution of the utility model: the surfaces of the impact tube and the fixing plate are both provided with threaded holes for inserting the end of the handle.

[0011] Compared with the prior art, the beneficial effects of the utility model are: through the setting of the sliding stroke tube, the welded flange tube and the impact tube, the aluminum seat bearing can be replaced without disassembling the stretching roller, the aluminum seat and its accessories. The time consumption can be controlled within 6 hours through practice, reducing the impact of bearing replacement on production capacity. At the same time, it avoids the need to remove other parts when replacing bearings, reducing the risk of damage to parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the replacement tooling of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the sliding stroke tube of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the welded flange pipe of the utility model;

[0015] Figure 4 This is a schematic diagram of the impact tube structure of the utility model;

[0016] Figure 5 This is a schematic diagram of the handle structure of the utility model;

[0017] Figure 6 It is a cross-sectional schematic diagram of the replacement tool of the utility model when in use;

[0018] Figure 7 This is an exploded schematic diagram of the replacement tooling of the utility model;

[0019] In the figure: 1. Sliding stroke tube; 11. Pipe; 12. Fixed plate; 13. Connecting plate; 2. Welding flange tube; 21. Dismantling plate; 22. Plug-in tube; 23. Welding tube; 3. Impact tube; 4. Handle. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-7 In an embodiment of the utility model, an MDO stretching roller aluminum seat bearing replacement tool comprises a sliding stroke tube 1, the end of the sliding stroke tube 1 is detachably provided with a welding flange tube 2, the outer peripheral surface of the sliding stroke tube 1 is movably sleeved with an impact tube 3, and the surfaces of the sliding stroke tube 1 and the impact tube 3 are detachably provided with handles 4.

[0022] Specifically, the impact tube 3 is sleeved on the outer circumference of the sliding stroke tube 1 and can move along its length direction. The fitting clearance between the sliding stroke tube 1 and the impact tube 3 is 0.25 to 0.3 mm. The inner hole end face of the impact tube 3 is chamfered by 5 mm to prevent the phenomenon of collision and jamming. The end of the welding flange tube 2 is welded together with the bearing in the aluminum seat, and then the staff frequently pulls the impact tube 3 on the sliding stroke tube 1 to generate the impact force to make the bearing detach from the inside of the aluminum seat. Due to the uniform force, the bearing can be smoothly removed and installed, and the aluminum seat is not deformed or roughened. The tooling is also suitable for equipment such as embedded bearings in coaxial motor drive.

[0023] See also Figure 2 and Figure 3 In one embodiment, in this embodiment, preferably, the sliding stroke tube 1 includes a pipeline 11 and a fixed plate 12 and a connecting plate 13 respectively arranged at both ends of the pipeline 11, and the connecting plate 13 has through holes in the areas near the four corners of the end surface, and the disassembly plate 21 has internal threaded holes in the areas near the four corners of the end surface, and each threaded hole is concentrically arranged with each through hole, and bolts are provided in the through holes of the fixed plate 12, and the ends of the bolts are threadedly connected with the internal threaded holes after passing through the through holes. Further, after the bolts pass through the through holes and are threadedly connected with the internal threaded holes on the disassembly plate 21, it can be ensured that the disassembly plate 21 and the fixed plate 12 are tightly connected together.

[0024] See also Figure 2 and Figure 3 In one embodiment, in this embodiment, preferably, the welded flange pipe 2 includes a dismantling plate 21 adapted to the connecting plate 13, the end face of the dismantling plate 21 is installed with a plug-in tube 22 plugged into the inside of the pipeline 11, and the end face of the dismantling plate 21 away from the plug-in tube 22 is installed with a welding tube 23.

[0025] Specifically, the material of the welding flange pipe 2 is 304 stainless steel. When operating, first put it on the motor shaft of the stretching roller, with a clearance of 0.1 to 0.15mm, apply grease to reduce sliding resistance, facilitate sliding and protect the motor shaft, and the front end surface of the welding pipe 23 is pushed against the inner ring plane of the bearing to be replaced. Figure 7 Ensure that the gap between the inner hole and the main shaft is 4 to 5 mm, and then use argon arc welding and stainless steel welding wire to weld the joint between the front end face of the welding pipe 23 and the end face of the inner ring of the bearing. There are two welding points, the weld length of a single welding point is about 8 cm, so as to connect the welding pipe 23 and the bearing together. Secondly, the plug-in pipe 22 is inserted into the interior of the pipeline 11 to play a positioning role.

[0026] See also Figure 1-4 In one embodiment, in this embodiment, preferably, the surfaces of the impact tube 3 and the fixing plate 12 are provided with threaded holes for inserting the end of the handle 4, so as to facilitate moving the impact tube 3 and installing the sliding stroke tube 1 when in use.

[0027] The working principle and use process of the utility model are as follows: when disassembling the aluminum seat bearing, two people hold the handle 4 on the sliding stroke tube 1 and lift it slightly upward to offset the deadweight of the tooling, and two people hold the handle 4 on the impact tube 3 and slide it quickly backward from the front end surface of the sliding stroke tube 1 until it hits the rear end plane of the sliding stroke tube 1, and repeat about 20 times. The bearing is removed from the inner ring of the aluminum sleeve and the main shaft under the action of uniform impact force; when installing the aluminum seat bearing, first cut the weld between the welding tube 23 and the bearing, and then lathe the end face until the end face is vertical, and then put the bearing sleeve on the main shaft about 3mm, and then install the replacement tooling in turn, and operate in the opposite way to disassembling the bearing. Repeat about 20 times and the bearing is installed in place, and the whole replacement process is completed.

[0028] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0029] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A tool for replacing the aluminum seat bearing of an MDO stretching roller, characterized in that: The invention comprises a sliding travel tube (1), the end of which is detachably provided with a welding flange tube (2), the outer peripheral surface of the sliding travel tube (1) is movably sleeved with an impact tube (3), and the surfaces of the sliding travel tube (1) and the impact tube (3) are detachably provided with handles (4).

2. The MDO stretching roller aluminum seat bearing replacement tool according to claim 1 is characterized in that: The sliding travel tube (1) comprises a pipeline (11) and a fixing plate (12) and a connecting plate (13) respectively arranged at two ends of the pipeline (11); through holes are provided in the areas near the four corners of the end surface of the connecting plate (13).

3. The MDO stretching roller aluminum seat bearing replacement tool according to claim 2 is characterized in that: The welded flange pipe (2) comprises a dismantling plate (21) adapted to the connecting plate (13), the end surface of the dismantling plate (21) being provided with a plug-in tube (22) plugged into the interior of the pipeline (11), and the end surface of the dismantling plate (21) away from the plug-in tube (22) being provided with a welding tube (23).

4. The MDO stretching roller aluminum seat bearing replacement tool according to claim 3 is characterized in that: The end surface of the dismantling plate (21) is provided with internal threaded holes in the areas near the four corners, and each threaded hole is concentrically arranged with each through hole.

5. The MDO stretching roller aluminum seat bearing replacement tool according to claim 4 is characterized in that: Bolts are arranged in the through holes of the fixing plate (12), and the ends of the bolts pass through the through holes and are threadedly connected with the internal threaded holes.

6. The MDO stretching roller aluminum seat bearing replacement tool according to claim 2 is characterized in that: The surfaces of the impact tube (3) and the fixing plate (12) are both provided with threaded holes for inserting the end of the handle (4).

Images