A drawing device for close fitting mechanical parts

Abstract

The utility model relates to the technical field of power plant overhauls, concretely to a kind of drawing device for closely cooperating mechanical component, including main part, the main part is total support, the total support outside fixedly connected with reinforcing plate, the total support bottom fixedly connected with channel steel, the channel steel end fixedly connected with connecting plate, the connecting plate inboard swing joint has toothed disc body, the total support top is provided with screw rod, the utility model is cooperated with jack, can be realized to gear accurate, stable force, avoid damage gear and associated shaft, bearing and other components in the process of disassembly, guarantee equipment original precision and performance, simplify operation process by the tool, reduce tool adjustment, adaptation time, accelerate gear disassembly speed, shorten equipment maintenance cycle, improve production operation efficiency, the tool can be reused, modification, adapt to a variety of similar operation scene, make operator more convenient force, improve operation safety and comfort, reduce operation risk.

Description

Technical Field

[0001] This utility model relates to the field of power plant maintenance technology, and in particular to a pulling device for tightly fitting mechanical parts. Background Technology

[0002] In industrial equipment maintenance, gear disassembly is one of the core operations that is frequently carried out. Whether it is a machine tool spindle, a motor transmission system, or a reduction mechanism of heavy machinery, when gears are worn, have meshing deviations, or are jammed, they need to be replaced or repaired through disassembly. This process requires the selection of equipment such as pullers and hydraulic tools based on the gear model and installation method. At the same time, it is necessary to accurately control the force and angle to avoid damaging the shaft or surrounding components, thus laying the foundation for the normal operation of the equipment in the future.

[0003] Existing technologies often suffer from the following drawbacks: traditional general-purpose tools are not adaptable enough, making it difficult to apply force precisely to specific models and structures of gears, which can easily damage gears and shafts; frequent tool adjustments are required during operation, which consumes manpower and time, affecting maintenance efficiency; and the uneven force applied by general-purpose tools can easily cause deformation and damage to components, increasing maintenance costs and equipment downtime, and failing to meet the needs for efficient, precise, and low-cost gear disassembly.

[0004] Therefore, this utility model provides a pulling device for tightly fitting mechanical parts. Utility Model Content

[0005] The purpose of this invention is to address the limitations of existing pullers in terms of adaptability, which prevent them from being applied to all gears and other tightly fitted mechanical components. This invention provides a puller for tightly fitted mechanical components.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a pulling device for tightly fitting mechanical components, comprising a main body, the main body being a main support, a reinforcing plate fixedly connected to the outer side of the main support, a channel steel fixedly connected to the bottom of the main support, a connecting plate fixedly connected to the end of the channel steel, a gear disc body movably connected to the inner side of the connecting plate, a screw rod penetrating through the top of the main support, a nut threadedly connected to the outer side of the screw rod, a washer provided between the screw rod and the main support, and a jack placement plate fixedly connected to the inner side of the main support.

[0007] The effects achieved by the above components are as follows: the overall structural strength is improved by forming a stable frame through the main support, reinforcing plate and channel steel, and deformation is avoided under stress; the connecting plate and the gear plate body can be used to adapt to mechanical parts of different sizes, enhancing the versatility of the device; the combination of screw, nut and washer can accurately adjust the clamping force and position, and the jack placement plate provides a stable support point for the jack, laying the foundation for uniform force application in the future.

[0008] Preferably, the reinforcing plate is triangular in shape, and the reinforcing plate is fixedly connected to the outer wall of the main support and the upper surface of the channel steel respectively. Two sets of the reinforcing plates are symmetrically arranged about the central axis of the main support.

[0009] The effects achieved by the above components are as follows: the triangular reinforcing plate utilizes the principle of triangle stability to further strengthen the connection strength between the main support and the channel steel, disperse the stress generated during the pulling process, and avoid excessive local stress that could damage the device; the two sets of symmetrically arranged reinforcing plates can make the stress distribution more uniform and improve the overall load-bearing capacity of the device.

[0010] Preferably, the inner side of the gear disc body is provided with anti-slip teeth, the gear disc body and the connecting plate are detachably connected by bolts, and the gear disc body can be replaced with different specifications according to the size of the mechanical parts.

[0011] The effects achieved by the above components are as follows: the anti-slip teeth increase the friction between the toothed disc body and the mechanical parts, preventing the parts from slipping during pulling and ensuring the stability of the disassembly process; the detachable connection method and the replaceable toothed disc body design enable the device to be adapted to different models and sizes of tightly fitting mechanical parts, breaking through the traditional puller's compatibility limitations and expanding its application range.

[0012] Preferably, there are two sets of screws, and the two sets of screws are symmetrically distributed about the central axis of the main support. An arc-shaped clamping block is fixedly connected to the bottom of the screw, and a rubber buffer pad is pasted on the inner side of the arc-shaped clamping block.

[0013] The effects achieved by the above components are as follows: the two sets of symmetrically distributed screws can clamp the mechanical parts from both sides to ensure balanced force; the arc-shaped clamping blocks can conform to the outer contour of the cylindrical mechanical parts to improve clamping stability; the rubber buffer pads can avoid direct rigid contact between the screws and the parts, prevent the surface of the parts from being scratched, and further enhance friction to reduce the risk of slippage.

[0014] Preferably, the upper surface of the jack placement plate is provided with a positioning groove, the size of which is adapted to the bottom size of a commonly used jack, and the jack placement plate and the main support are integrally formed.

[0015] The effects achieved by the above components are as follows: the positioning groove can limit and fix the jack, prevent the jack from shifting during the application of force, and ensure that the pulling force is accurately transmitted to the mechanical parts; the one-piece molded structure avoids the problem of stress concentration at the splicing point, improves the structural strength of the jack placement plate, and ensures that it is not easy to break or deform when bearing the jack's thrust, thus ensuring operational safety.

[0016] In summary:

[0017] In this invention, the design is used in conjunction with a jack to achieve precise and stable force application to gears, avoiding damage to gears and related shafts, bearings, and other components during disassembly, thus ensuring the original precision and performance of the equipment. This tool simplifies the operation process, reduces tool adjustment and adaptation time, speeds up gear disassembly, shortens equipment maintenance cycles, and improves production and maintenance efficiency. The tool is reusable and modifiable, adaptable to various similar work scenarios, making it easier for operators to apply force, improving operational safety and comfort, and reducing operational risks. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model from another angle;

[0020] Figure 3 This is a top view of the present invention.

[0021] Legend: 1. Main support; 2. Reinforcing plate; 3. Channel steel; 4. Connecting plate; 5. Gear disc body; 6. Nut; 7. Screw; 8. Washer; 9. Jack placement plate. Detailed Implementation

[0022] Reference Figure 1-3 As shown, this utility model provides a technical solution: a pulling device for tightly fitting mechanical parts, including a main body, wherein the main body is a total support 1.

[0023] The following is a detailed explanation of its overall setup and function.

[0024] In this implementation scheme: a reinforcing plate 2 is fixedly connected to the outer side of the main support 1; a channel steel 3 is fixedly connected to the bottom of the main support 1; a connecting plate 4 is fixedly connected to the end of the channel steel 3; a gear disc body 5 is movably connected to the inner side of the connecting plate 4; a screw 7 is threaded through the top of the main support 1; a nut 6 is threadedly connected to the outer side of the screw 7; a washer 8 is provided between the screw 7 and the main support 1; and a jack placement plate 9 is fixedly connected to the inner side of the main support 1. The main support 1, reinforcing plate 2, and channel steel 3 form a stable device frame, improving the overall structural strength and preventing deformation under stress. The connecting plate 4 and gear disc body 5 can be used to accommodate mechanical parts of different sizes, enhancing the device's versatility. The combination of screw 7, nut 6, and washer 8 allows for precise adjustment of clamping force and position. The jack placement plate 9 provides a stable support point for the jack, laying the foundation for subsequent uniform force application.

[0025] Specifically, the reinforcing plate 2 is triangular in shape and is fixedly connected to the outer wall of the main support 1 and the upper surface of the channel steel 3, respectively. Two sets of reinforcing plates 2 are symmetrically arranged about the central axis of the main support 1. The triangular structure of the reinforcing plate 2 utilizes the principle of triangle stability to further strengthen the connection strength between the main support 1 and the channel steel 3, disperse the stress generated during the pulling process, and avoid excessive local stress that could damage the device. The two sets of symmetrically arranged reinforcing plates 2 can make the stress distribution more uniform and improve the overall load-bearing capacity of the device. The inner side of the gear disc body 5 is provided with anti-slip teeth. The gear disc body 5 and the connecting plate 4 are detachably connected by bolts, and the gear disc body 5 can be replaced with different specifications according to the size of the mechanical parts. The anti-slip teeth increase the friction between the toothed disc body 5 and the mechanical parts, preventing the parts from slipping during pulling and ensuring stability during disassembly. The detachable connection and replaceable toothed disc body 5 design allow the device to adapt to different models and sizes of tightly fitting mechanical parts, breaking through the limitations of traditional pullers and expanding its application range. The screw 7 is provided in two sets, and the two sets of screw 7 are symmetrically distributed about the central axis of the main support 1. An arc-shaped clamping block is fixedly connected to the bottom of the screw 7, and a rubber buffer pad is pasted on the inner side of the arc-shaped clamping block. Two symmetrically distributed sets of screws 7 can clamp the mechanical parts from both sides, ensuring balanced force application. The arc-shaped clamping block can conform to the outer contour of the cylindrical mechanical parts, improving clamping stability. The rubber buffer pad can avoid direct rigid contact between the screws 7 and the parts, preventing scratches on the surface of the parts, while further enhancing friction and reducing the risk of slippage. The upper surface of the jack placement plate 9 is provided with a positioning groove, the size of which is adapted to the bottom size of commonly used jacks. The jack placement plate 9 and the main support 1 are integrally formed. The positioning groove can limit and fix the jack, preventing the jack from shifting during force application and ensuring that the pulling force is accurately transmitted to the mechanical parts. The integrally formed structure avoids stress concentration at the splice, improves the structural strength of the jack placement plate 9, and ensures that it is not easily broken or deformed when subjected to the jack's thrust, thus ensuring operational safety.

[0026] Working principle: Compared to a general puller, this tool can quickly and accurately position and install the target gear. Compared to using a general-purpose puller, it reduces the time spent on repeated adjustments and adaptations, improves disassembly efficiency, simplifies the operation process, and reduces labor intensity. When used in conjunction with a jack, it forms a stable and efficient force application system, rationally distributing the pulling force so that the gear is evenly stressed during disassembly, avoiding gear tooth breakage, tooth surface damage, and shaft deformation caused by excessive localized force. This tool is reusable and suitable for multiple similar tasks, reducing maintenance costs to some extent. The dimensions and installation structure of the target gear, the clamping and force-bearing parts of the adjustable screw 7 on the gear, ensure precise fit with the gear, providing a foundation for force application. The effective cooperation between this tool and the jack ensures that the pulling force is effectively and evenly transmitted to the gear. For example, the force is dispersed and transmitted through rigid components to avoid excessive local stress. High-strength and wear-resistant materials are selected for key parts of the tool to ensure that the tool does not deform or get damaged when subjected to large pulling forces, maintaining structural stability and reliability. The design facilitates installation, adjustment, and disassembly, such as the use of nut 6, allowing operators to efficiently complete tool deployment and operations, reducing auxiliary operation time.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A drawing device for tightly fitting mechanical components, comprising a main body (1), characterized in that: The main body (1) is a main support. A reinforcing plate (2) is fixedly connected to the outside of the main support. A channel steel (3) is fixedly connected to the bottom of the main support. A connecting plate (4) is fixedly connected to the end of the channel steel (3). A toothed disc body (5) is movably connected to the inside of the connecting plate (4). A screw (7) is provided through the top of the main support. A nut (6) is threaded to the outside of the screw (7). A washer (8) is provided between the screw (7) and the main support. A jack placement plate (9) is fixedly connected to the inside of the main support.

2. The drawing device for tightly fitting mechanical parts according to claim 1, characterized in that: The reinforcing plate (2) is triangular in shape, and the reinforcing plate (2) is fixedly connected to the outer wall of the main support and the upper surface of the channel steel (3) respectively. There are two sets of reinforcing plates (2) symmetrically arranged about the central axis of the main support.

3. A drawing device for tightly fitting mechanical parts according to claim 1, characterized in that: The inner side of the toothed disc body (5) is provided with anti-slip teeth, and the toothed disc body (5) and the connecting plate (4) are detachably connected by bolts.

4. A drawing device for tightly fitting mechanical parts according to claim 1, characterized in that: The screw (7) is provided in two sets, and the two sets of screws (7) are symmetrically distributed about the central axis of the main support. The bottom of the screw (7) is fixedly connected to an arc-shaped clamping block, and a rubber buffer pad is pasted on the inner side of the arc-shaped clamping block.

5. A drawing device for tightly fitting mechanical parts according to claim 1, characterized in that: The upper surface of the jack placement plate (9) is provided with a positioning groove. The size of the positioning groove is adapted to the bottom size of a commonly used jack. The jack placement plate (9) and the main support are integrally formed.

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