Small shaft sleeve dismounting tool
By designing a small sleeve removal tool composed of a pedestal and top shaft, the problems of difficulty in disassembling small sleeves and difficult to grasp the depth of installation are solved, rapid disassembly and installation are achieved, maintenance difficulty and time are reduced, and equipment and operators are ensured.
Patent Information
- Application Number
- CN202421911323.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-08-08
AI Technical Summary
During the maintenance of mechanical equipment, it is difficult to disassemble the small shaft sleeve, which can easily lead to damage to precision parts, and the disassembly and installation time is long, which affects production efficiency, and the use of a hammer is at risk of injury.
A small sleeve removal tool is designed, consisting of two parts: a pedestal and a top shaft. The sleeve is fixed through a sleeve and a limiting hole. The threads of the top shaft and the swing arm provide the torque and lever effect for disassembly and installation.
It realizes rapid disassembly and installation of small sleeves, reduces equipment maintenance difficulty, reduces disassembly and assembly time, and reduces from 20 minutes to 2 minutes, preventing equipment damage and operator injuries.
Smart Images

Figure CN222874478U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical maintenance tools, in particular to a small-sized shaft sleeve disassembly tool which is cleverly designed and easy to operate. Background Art
[0002] During the maintenance of mechanical equipment, the removal of sleeves is a common and important task. Currently, there are no similar tools on the market. Maintenance workers use hammers to remove and install small sleeves, which not only easily damages precision parts, but also takes a long time to remove and install, affecting production efficiency. Using a hammer in this scenario also poses a risk of injury. Utility Model Content
[0003] In order to save time when disassembling a small shaft sleeve and prevent equipment damage caused by disassembly, the utility model provides a small shaft sleeve disassembly tool. The tool can complete the disassembly of the shaft sleeve conveniently and quickly through a unique structural design, improve maintenance efficiency, and can be applied to various small shaft sleeve disassembly scenarios.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A small sleeve removal tool, consisting of a base and a top shaft;
[0006] The pedestal comprises a base and a sleeve located at the center of the upper end surface of the base, a through hole is provided between the centers of the upper and lower end surfaces of the base, and a limiting hole is provided at the lower edge of the upper port of the sleeve;
[0007] The top shaft is composed of a top rod located at the front and a handle connected to the rear end of the top rod.
[0008] Furthermore, the front portion of the push rod is provided with a thread.
[0009] Furthermore, a swing arm is horizontally arranged near the upper portion of the handle.
[0010] Beneficial effects of the utility model:
[0011] 1. Save the time of disassembly and installation of the shaft sleeve, and reduce the difficulty of equipment maintenance, from 20 minutes to 2 minutes;
[0012] 2. Prevent damage to the shaft sleeve and other equipment parts;
[0013] 3. Prevent personal injuries caused by slipping of tools during disassembly;
[0014] 4. When installing the sleeve, because it is slowly screwed in through the thread in front of the push rod, the installation depth of the sleeve can be adjusted to prevent the sleeve from being unusable due to being installed too deep. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural diagram of the platform in the utility model;
[0016] Figure 2 It is the structural diagram of the top shaft in the utility model. DETAILED DESCRIPTION
[0017] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0018] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply 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 utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0019] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0020] In the description of the embodiments of the present invention, "multiple" means at least 2.
[0021] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0022] Example:
[0023] A small sleeve removal tool,
[0024] Overall structure: mainly composed of two parts: the base and the top shaft;
[0025] Pedestal structure:
[0026] The stand includes a base 10 and a sleeve 11 located at the center of the upper end surface of the base 10. The base is used to support the entire tool to ensure its stability;
[0027] A through hole 12 is formed between the centers of the upper and lower end surfaces of the base 10, and the through hole is used to guide the movement of the top shaft to ensure linearity and stability during the disassembly process;
[0028] A limiting hole 13 is provided at the lower inner edge of the upper end of the sleeve 11, and the limiting hole 13 is used to fix the sleeve to be removed during the disassembly process to prevent it from deflecting or rotating when subjected to the thrust of the top shaft;
[0029] Top shaft structure:
[0030] The ejector shaft is composed of an ejector rod 20 at the front and a handle 21 connected to the rear end of the ejector rod 20. The ejector rod 20 is used to directly act on the sleeve to apply the thrust required for disassembly.
[0031] The handle part is convenient for operators to hold, improving the convenience and comfort of operation.
[0032] Further features:
[0033] The front part of the push rod 20 is provided with a thread, and this design enables the push rod 20 to hold the sleeve more firmly when rotating, thereby increasing the torque during disassembly and improving the disassembly efficiency;
[0034] A swing arm 22 is horizontally placed near the upper portion of the handle 21. The setting of the swing arm 22 can provide an additional force application point, which is convenient for lever operation as needed during the disassembly process, further reducing the physical burden of the operator.
[0035] The problem to be solved by the utility model tool is:
[0036] 1. Small sleeves are difficult to remove and using ordinary tools can easily hurt your hands;
[0037] 2. It is difficult to control the installation depth of small sleeves when installing them.
[0038] The technical solution adopted by the utility model tool to solve its technical problems is:
[0039] This tool consists of a base and a top shaft. It has been applied to potato chip production equipment (Japanese equipment: metering machine). The hopper on the metering machine involves food contact surfaces, so the external moving parts are connected by graphite sleeves, which can play a lubricating and shock-absorbing role. Since the graphite sleeve is made of soft material, it is easy to be damaged when disassembled with ordinary tools (such as hammers and screwdrivers). At the same time, its small size (the minimum size is 12mm in outer diameter, 8mm in inner diameter, and less than 5mm in thickness) makes disassembly difficult, time-consuming, and easy to hurt hands.
[0040] When disassembling, first place the spare part to be disassembled on the pedestal, and then put the top shaft through the spare part into the pedestal. At this time, just turn the top shaft swing arm to easily remove the graphite sleeve and drop it into the pedestal.
[0041] During installation, first install the spare part on the pedestal, put in the shaft sleeve, then pass the top shaft through the shaft sleeve and put it into the pedestal, rotate the top shaft swing arm, and the graphite sleeve can be easily pushed into the spare part.
[0042] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.
Claims
1. A small sleeve removal tool, characterized in that: It consists of two parts: the base and the top shaft; The pedestal comprises a base and a sleeve located at the center of the upper end surface of the base, a through hole is provided between the centers of the upper and lower end surfaces of the base, and a limiting hole is provided at the lower edge of the upper port of the sleeve; The top shaft is composed of a top rod located at the front and a handle connected to the rear end of the top rod.
2. A small sleeve removal tool according to claim 1, characterized in that: The front part of the push rod is provided with a thread.
3. A small sleeve removal tool according to claim 1, characterized in that: A swing arm is horizontally arranged near the upper part of the handle.