Quickly-mounted bearing assembling structure

Abstract

The utility model discloses a quick installation bearing assembly structure, which comprises an installation seat, a fixed table and a lifting mechanism arranged on the fixed table, the output end of the lifting mechanism is connected with a sliding cylinder, the lower end of the sliding cylinder is connected with a heating plate, the bottom of the heating plate is connected with a heat conduction pressing plate, and the outer side wall of the heat conduction pressing plate is connected with an electric heating ring. The heating ring is used for heating the heating plate; the electric heating ring, the heat conduction pressing plate and the heating plate are matched, the bearing and the shaft body are assembled according to the thermal expansion and cold contraction principle, compared with a traditional pressurization method, the problem that an inner ring of the bearing and a retainer are damaged or dislocated due to excessive pressure is solved, the heating temperature is accurately controlled through the temperature sensor, and the service life of the bearing is prolonged. And the risk that the local performance of the bearing is changed is reduced, the assembly precision and reliability can be improved, the service life of equipment is effectively prolonged, and particularly, higher applicability and stability are embodied in a complex scene in which a plurality of parts need to be assembled at the same time.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, specifically to a bearing assembly structure for quick installation. Background Technology

[0002] In modern industrial production, bearing assembly, as a key mechanical connection process, is widely used in the manufacturing and maintenance of various mechanical equipment. Its basic principle is to make the bearing fit tightly with the shaft, bearing housing and other components in a specific way, so as to achieve the smooth and efficient operation of the equipment. Among the many assembly methods, interference fit is a common method. It uses the dimensional difference between the inner and outer rings of the shaft and the bearing, and applies external force or takes advantage of the thermal expansion and contraction of the materials to make the two fit tightly together, so as to ensure that the connection state and stable performance are maintained during the operation of the equipment.

[0003] Existing technologies for assembling shafts and bearings typically fall into two categories: pressure assembly and temperature difference assembly. Pressure assembly is the most common method, using a pressure device and a sleeve to assemble the bearing to the shaft wall via an interference fit. However, this method has several drawbacks: during assembly, it can easily damage or misalign the inner ring and cage within the bearing body, leading to inaccurate bearing installation and consequently affecting the normal operation and service life of the equipment. Furthermore, excessive pressure can alter local bearing properties, such as material deformation and reduced surface hardness, further weakening the bearing's load-bearing capacity and operational stability. Moreover, when assembling bearings with shafts and accessories, pressure assembly often fails to meet complex assembly requirements. This necessitates the development of more advanced and reliable bearing assembly structures, making it an urgent need in the industrial sector.

[0004] Therefore, a bearing assembly structure for rapid installation is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a quick-installation bearing assembly structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick-installation bearing assembly structure, including a mounting base and a fixing platform, and a lifting mechanism disposed on the fixing platform. The output end of the lifting mechanism is connected to a slide cylinder, the lower end of the slide cylinder is connected to a heating plate, the bottom of the heating plate is connected to a heat-conducting pressure plate, the outer wall of the heat-conducting pressure plate is connected to an electric heating ring, the outer wall of the electric heating ring is connected to a temperature sensor to control the heating temperature within a suitable range, a mold base for placing the assembly is provided below the heat-conducting pressure plate, a shaft seat is provided below the mold base, a fixing seat is threadedly connected to the outer wall of the shaft seat, a pneumatic clamp is provided on the outer wall of the fixing seat, a limit seat is installed on the outer wall of the shaft seat, and the lower end of the limit seat is inserted into the top of the mounting base.

[0007] Preferably, the mold base is provided with a mold, a bearing and a shaft. The bearing and shaft are placed inside the mold, and the lower end of the shaft is placed inside the shaft base. The top of the bearing is heated by an electric heating ring and a heat-conducting pressure plate. Through the principle of thermal expansion and contraction, the mold, bearing and shaft are pushed together by a lifting mechanism to complete the assembly.

[0008] Preferably, the lifting mechanism includes a telescopic cylinder fixedly installed inside the fixed platform, the output end of the telescopic cylinder is connected to a connecting seat, and the upper part of the outer wall of the slide cylinder is threaded inside the connecting seat for easy disassembly.

[0009] Preferably, a limiting plate is installed on the outer side wall of the connecting seat, and limiting rods are installed opposite each other on the top of the limiting plate. The upper ends of the two limiting rods pass through the fixing platform and extend upwards.

[0010] Preferably, a fixing ring extends upward from the top of the heat-conducting pressure plate, and a fixing groove is provided at the bottom of the heating plate, with the fixing ring threadedly installed inside the fixing groove.

[0011] Preferably, the top of the mounting base is provided with a limiting ring, and the lower end of the limiting base is inserted into the inside of the limiting ring to ensure a more stable equipment assembly process.

[0012] Preferably, the bottoms of the fixed platform, pneumatic clamp, and mold base are all fixedly mounted on the top of the mounting base, and a control switch is connected to the top of the mounting base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model utilizes the combination of an electric heating ring, a heat-conducting pressure plate, and a heating plate to achieve the assembly of the bearing and the shaft body using the principle of thermal expansion and contraction. Compared with the traditional pressurization method, it avoids the problem of damage or misalignment of the bearing inner ring and cage due to excessive pressure. The precise control of the heating temperature by the temperature sensor not only reduces the risk of local performance changes in the bearing, but also improves the assembly accuracy and reliability, effectively extending the service life of the equipment. It demonstrates higher applicability and stability, especially in complex scenarios where multiple components need to be assembled simultaneously.

[0015] 2. The equipment adopts a modular design with detachable structures for the mold base, shaft base, and limit base. Combined with the pneumatic clamp and temperature control system, it enables rapid adaptation of bearings and shafts of different specifications. The threaded connection between the limit ring on the top of the mounting base and the fixing ring of the heat-conducting pressure plate facilitates component replacement and ensures the stability of the equipment during assembly. Compared with the high precision requirements of the traditional temperature difference method, this utility model simplifies the operation process, reduces the dependence on the skill level of the operator, and significantly improves assembly efficiency and flexibility. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0019] In the diagram: 1. Mounting base; 2. Fixing platform; 3. Pneumatic clamp; 4. Limiting seat; 5. Shaft seat; 6. Mold seat; 7. Heat-conducting pressure plate; 8. Heating plate; 9. Electric heating ring; 10. Slide cylinder; 11. Connecting seat; 12. Limiting plate; 13. Limiting rod; 14. Telescopic cylinder; 15. Fixing ring; 16. Mold; 17. Bearing; 18. Shaft; 19. Limiting ring; 20. Control switch; 21. Fixing base. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1: Please refer to Figure 1-3This utility model provides a technical solution: a quick-installation bearing assembly structure, including a mounting base 1, a fixed platform 2, and a lifting mechanism mounted on the fixed platform 2. The output end of the lifting mechanism is connected to a slide cylinder 10, the lower end of the slide cylinder 10 is connected to a heating plate 8, the bottom of the heating plate 8 is connected to a heat-conducting pressure plate 7, and the outer wall of the heat-conducting pressure plate 7 is connected to an electric heating ring 9. The heating ring 9 heats the heating plate 9 and conducts the generated heat to the heat-conducting pressure plate 7, thereby heating the bearing 17 to a suitable temperature, causing the inner ring of the bearing 17 to expand to a certain extent, thus allowing the bearing to be installed... The assembly process is smoother. A temperature sensor is connected to the outer wall of the electric heating ring 9 to control the heating temperature within a suitable range. A mold seat 6 for placing the assembly parts is provided below the heat-conducting pressure plate 7. A shaft seat 5 is provided below the mold seat 6. A fixing seat 21 is threadedly connected to the outer wall of the shaft seat 5. Before processing, the corresponding shaft seat 5 can be replaced according to the actual shaft body 18 specifications to limit the shaft body 18 and improve the processing range of the equipment. A pneumatic clamp 3 is provided on the outer wall of the fixing seat 21. A limit seat 4 is installed on the outer wall of the shaft seat 5. The lower end of the limit seat 4 is inserted into the top of the mounting seat 1.

[0022] In this embodiment, the mold base 6 is provided with a mold 16, a bearing 17 and a shaft 18. The bearing 17 and the shaft 18 are placed inside the mold 16, and the lower end of the shaft 18 is placed inside the shaft base 5. The top of the bearing 17 is heated by the electric heating ring 9 and the heat-conducting pressure plate 7. Through the principle of thermal expansion and contraction, the mold 16, the bearing 17 and the shaft 18 are pushed together by the lifting mechanism to complete the assembly.

[0023] In this embodiment, the lifting mechanism includes a telescopic cylinder 14 fixedly installed inside the fixed platform 2. The output end of the telescopic cylinder 14 is connected to a connecting seat 11. The upper part of the outer wall of the slide cylinder 10 is threaded inside the connecting seat 11, which facilitates subsequent disassembly, maintenance and repair of the equipment, or replacement of the required parts for processing, thereby improving the processing range and adaptability of the equipment to different assembly situations.

[0024] A limiting plate 12 is installed on the outer side wall of the connecting seat 11, and a limiting rod 13 is installed on the top of the limiting plate 12. The upper ends of the two limiting rods 13 pass through the fixing platform 2 and extend upward.

[0025] In this embodiment, a fixing ring 15 extends upward from the top of the heat-conducting pressure plate 7, and a fixing groove is provided at the bottom of the heating plate 8. The fixing ring 15 is threadedly installed inside the fixing groove, which facilitates the replacement of the heat-conducting pressure plate 7 threadedly connected to the heating plate 8 to adapt to different processing composition requirements.

[0026] In this embodiment, the top of the mounting base 1 is provided with a limiting ring 19, and the lower end of the limiting seat 4 is inserted into the inside of the limiting ring 19 to ensure that the equipment assembly process is more stable. The bottoms of the fixed platform 2, the pneumatic clamp 3 and the mold seat 6 are all fixedly installed on the top of the mounting base 1. The top of the mounting base 1 is connected to a control switch 20 for controlling the operation of the equipment.

[0027] The working principle is as follows: The bearing assembly structure of this utility model is implemented in the following way: First, the shaft 18 is placed in the bearing seat 5. The outer wall of the bearing seat 5 is threadedly connected to the fixing seat 21. The outer wall of the fixing seat 21 is provided with a pneumatic clamp 3 for fixing the shaft 18. The mold 16, bearing 17 and shaft 18 are placed inside the mold seat 6. The bearing 17 and shaft 18 are located inside the mold 16. The electric heating ring 9 and the heat-conducting pressure plate 7 heat the top of the bearing 17. The inner ring of the bearing 17 expands by utilizing the principle of thermal expansion and contraction. The temperature sensor controls the heating temperature within a suitable range to prevent the bearing 17 from being damaged by excessive temperature. The heating plate 8 is connected to the slide cylinder 10. The slide cylinder 10 is connected to the output end of the lifting mechanism. The lifting mechanism includes a telescopic cylinder 14, the output end of which is connected to the connecting seat 11. The upper part of the outer wall of the slide cylinder 10 is threadedly installed inside the connecting seat 11 for easy disassembly. The outer wall of the connecting seat 11 is installed with... A limiting plate 12 is provided, and a limiting rod 13 is installed on the top of the limiting plate 12. The limiting rod 13 passes through the fixed platform 2 and extends upward to ensure stability during the lifting process. A fixing ring 15 extends from the top of the heat-conducting pressure plate 7 and is threadedly connected to the fixing groove at the bottom of the heating plate 8 to facilitate the replacement of the heat-conducting pressure plate 7. A limiting ring 19 is provided on the top of the mounting base 1, and the lower end of the limiting seat 4 is inserted into the limiting ring 19 to ensure stable assembly of the equipment. The bottoms of the fixed platform 2, the pneumatic clamp 3, and the mold base 6 are all fixed on the top of the mounting base 1. A control switch 20 is connected to the top of the mounting base 1. During operation, the electric heating ring 9 heats the heat-conducting pressure plate 7, and the heat-conducting pressure plate 7 transfers heat to the bearing 17, causing its inner ring to expand. Then, the lifting mechanism pushes the heat-conducting pressure plate 7 down, so that the bearing 17 and the shaft 18 fit tightly to complete the assembly. After cooling, the bearing 17 shrinks to achieve an interference fit with the shaft 18, completing the assembly process.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-installation bearing assembly structure, comprising a mounting base (1), a fixed platform (2), and a lifting mechanism disposed on the fixed platform (2), characterized in that: The output end of the lifting mechanism is connected to a slide cylinder (10), the lower end of the slide cylinder (10) is connected to a heating plate (8), the bottom of the heating plate (8) is connected to a heat-conducting pressure plate (7), the outer wall of the heat-conducting pressure plate (7) is connected to an electric heating ring (9), the outer wall of the electric heating ring (9) is connected to a temperature sensor to control the heating temperature within a suitable range, a mold seat (6) for placing the assembly is provided below the heat-conducting pressure plate (7), a shaft seat (5) is provided below the mold seat (6), a fixing seat (21) is threadedly connected to the outer wall of the shaft seat (5), a pneumatic clamp seat (3) is provided on the outer wall of the fixing seat (21), a limit seat (4) is installed on the outer wall of the shaft seat (5), and the lower end of the limit seat (4) is inserted into the top of the mounting seat (1).

2. The bearing assembly structure for quick installation according to claim 1, characterized in that: The mold base (6) is equipped with a mold (16), a bearing (17) and a shaft (18). The bearing (17) and the shaft (18) are placed inside the mold (16). The lower end of the shaft (18) is placed inside the shaft seat (5). The top of the bearing (17) is heated by an electric heating ring (9) and a heat-conducting pressure plate (7). Through the principle of thermal expansion and contraction, the mold (16), the bearing (17) and the shaft (18) are pushed together by a lifting mechanism to complete the assembly.

3. The bearing assembly structure for quick installation according to claim 1, characterized in that: The lifting mechanism includes a telescopic cylinder (14) fixedly installed inside the fixed platform (2). The output end of the telescopic cylinder (14) is connected to a connecting seat (11). The upper part of the outer wall of the slide cylinder (10) is threaded inside the connecting seat (11) for easy disassembly.

4. The bearing assembly structure for quick installation according to claim 3, characterized in that: A limiting plate (12) is installed on the outer wall of the connecting seat (11), and a limiting rod (13) is installed on the top of the limiting plate (12) opposite to each other. The upper ends of the two limiting rods (13) pass through the fixing platform (2) and extend upward.

5. The bearing assembly structure for quick installation according to claim 1, characterized in that: A fixing ring (15) extends upward from the top of the heat-conducting pressure plate (7), and a fixing groove is provided at the bottom of the heating plate (8). The fixing ring (15) is threadedly installed inside the fixing groove.

6. The bearing assembly structure for quick installation according to claim 1, characterized in that: The top of the mounting base (1) is provided with a limiting ring (19), and the lower end of the limiting seat (4) is inserted into the inside of the limiting ring (19) to ensure that the equipment assembly process is more stable.

7. The bearing assembly structure for quick installation according to claim 1, characterized in that: The bottoms of the fixed platform (2), pneumatic clamp (3) and mold base (6) are all fixedly installed on the top of the mounting base (1), and a control switch (20) is connected to the top of the mounting base (1).

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