Bearing hoisting device

Abstract

The utility model belongs to mechanical assembly technical field discloses a bearing hoist device, including hoist frame, clamping mechanism. The top of hoist frame is equipped with the lug; The lower part is equipped with two opposite clamping mechanisms, and the bearing is placed between and is clamped and fixed. Two clamping mechanisms are connected with hoist frame rotation respectively through the rotation axis, and one rotation axis is equipped with the rotary locking mechanism, and the rotation angle is locked to fix the bearing inclination angle. The other rotation axis and hoist frame axial sliding fit, and set radial adaptation mechanism, including pull ring, locking screw and spring, for adjusting the distance of two clamping mechanisms, and matching different specifications bearings. The clamping mechanism contains rotary frame, self-locking track, semicircle tray and briquetting, and the lower end of tray is equipped with the inclined plane and is positioned with the bearing fillet cooperation, and the briquetting is pressed along the track and is pressed the upper end face. The utility model has strong versatility, and the hoisting, heating, arbitrary angle installation of once clamping are completed, and the operation is simple, safe and efficient.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly equipment technology, specifically to a bearing hoisting device for adjusting and fixing the angle of bearings during hoisting, heating, and installation. Background Technology

[0002] In the field of mechanical manufacturing and assembly, bearings, as key rotating components, are widely used in various equipment such as motors, pumps, and fans. Their installation process directly affects the operational accuracy, stability, and lifespan of the equipment. Traditional bearing assembly methods mainly rely on manual handling or simple vertical lifting tools. This method has many limitations in practical operation. First, when manually handling bearings, due to their large weight, especially large bearings, multiple operators are needed, which is not only labor-intensive but also easily leads to scratches or deformation of the bearing surface, and even safety accidents. Second, although vertical lifting tools can achieve basic lifting functions, their structure is simple, usually only able to lift bearings vertically, and cannot flexibly adjust the bearing angle according to installation requirements. For example, in some equipment, bearings need to be installed on the shaft at a specific angle. If the shaft is not vertical, traditional lifting tools are difficult to meet the requirements, leading to multiple adjustments and re-lifting during the installation process, resulting in low efficiency.

[0003] Furthermore, existing lifting devices generally lack versatility. Different types and specifications of bearings (such as bearings with different inner diameters, outer diameters, and widths) require specialized lifting tools, which increases equipment costs and inventory management difficulties. For example, small bearings may use simple clamping tools, while large bearings require heavy-duty lifting tools, but these tools are not interchangeable, leading to frequent tool changes on the production line and affecting continuous operation. Heating bearings is a common step in the assembly process to expand the bearing inner ring for installation, but traditional methods often separate heating and lifting: the bearing is heated first, and then moved with lifting tools. This not only prolongs the process time but may also lead to installation failure due to cooling. Especially in high-temperature environments, operators who directly contact heated bearings face the risk of burns.

[0004] Furthermore, existing bearing hoisting devices also suffer from limitations in adaptability. Many devices employ fixed-size clamping structures, which cannot accommodate variations in the radius of the bearing's outer diameter or different diameters. This results in unstable clamping, potentially causing the bearing to slip or fall off during hoisting, leading to equipment damage or personal injury. Simultaneously, the lack of an effective locking mechanism makes it impossible to maintain the bearing's stable position during hoisting, heating, and installation. This is especially problematic when the bearing needs to be rotated 90° for heating or installed at arbitrary angles, where existing devices struggle to achieve precise control. This complicates the assembly process and increases the likelihood of human error. Utility Model Content

[0005] In view of this, the purpose of this utility model is to solve the problems of low efficiency and poor versatility of existing bearing hoisting devices. This utility model provides a bearing hoisting device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A bearing hoisting device includes a hoisting frame and a clamping mechanism. The top of the hoisting frame is provided with a lifting lug for connecting to hoisting equipment. The lower part of the hoisting frame is provided with two oppositely arranged clamping mechanisms. The bearing is placed between the two clamping mechanisms and clamped and fixed to the hoisting frame by the clamping mechanisms on both sides. The two clamping mechanisms are rotatably connected to the hoisting frame through a rotating shaft. One of the rotating shafts is provided with a rotary locking mechanism fixedly connected to the hoisting frame. The rotary locking mechanism locks the rotation angle of the clamping mechanism, thereby fixing the hoisting tilt angle of the bearing.

[0007] Furthermore, the rotary locking mechanism includes a rotating disk and a locking mechanism; the rotating disk is fixed to the end of the rotating shaft away from the clamping mechanism and is used for manual rotation to adjust the bearing angle; The locking mechanism adopts a clamp-type structure and is located in the middle section of the rotating shaft. The locking mechanism includes upper and lower frames fixed on the hoisting frame, semi-circular upper and lower locking rings, locking screws, and a handle. The upper and lower frames are located on both sides of the rotating shaft, serving as the support frame for the locking mechanism. The semi-circular upper and lower locking rings are respectively installed on the inner side of the upper and lower frames, corresponding to the outer circumference of the rotating shaft, forming a clamp-like surrounding structure. The locking screw is located on one side of the upper and lower locking rings and is threadedly connected to the upper and lower locking rings. The handle is fixed to the outer end of the locking screw. By rotating the handle to loosen or lock the upper and lower locking rings, the rotating shaft located in the middle of the upper and lower locking rings can be freely rotated or fixed, thereby controlling the bearing hole to be aligned at any angle.

[0008] Furthermore, one of the two rotating shafts is axially slidingly engaged with the lifting frame, and the rotating shaft is provided with a radial adaptation mechanism. The radial adaptation mechanism drives the clamping mechanism to move, thereby adjusting the distance between the two clamping mechanisms to match bearings of different sizes and specifications.

[0009] Furthermore, the radial adaptation mechanism includes a pull ring, a locking screw, and a spring; the pull ring is located at the end of the rotating shaft away from the clamping mechanism and is used to manually pull and adjust the radial dimension of the clamping mechanism; The spring is sleeved between the clamping mechanism and the lifting frame, and is used to automatically spring the clamping mechanism back to fit the bearing after the pull ring is released; the locking screw is set on the rotating shaft and is used to fix the axial position of the rotating shaft.

[0010] Furthermore, the clamping mechanism includes a rotating frame, a self-locking track, a semi-circular tray, and a pressure block; The rotating frame is connected to the rotating shaft; the semi-circular tray is fixed at the lower end of the rotating frame, and the semi-circular tray is provided with a positioning end face to support the lower end of the bearing; the self-locking track is fixed on the rotating frame, and the pressure block is provided on the self-locking track and moves up and down along the self-locking track to press the upper end face of the bearing and realize the vertical fixation of the bearing.

[0011] Furthermore, the lower end of the semi-circular tray is provided with an inclined surface that mates with the positioning end face, which is used to cooperate with the outer circle fillet of the bearing for positioning and guidance.

[0012] Furthermore, one of the two rotating shafts is provided with the rotary locking mechanism, and the other is provided with the radial adaptation mechanism, or both of the two rotating shafts are provided with both the rotary locking mechanism and the radial adaptation mechanism.

[0013] The beneficial effects of this utility model are as follows: Firstly, in terms of applicability, this utility model integrates hoisting, heating, and assembly functions into one unit, completing the entire process in a single clamping operation, avoiding the hassle of multiple bearing transfers in traditional methods. This not only shortens the assembly cycle and improves production efficiency but also reduces potential damage to the bearing during transfer. Simultaneously, the device supports arbitrary angle adjustment of the bearing. By manually rotating the rotating shaft via a rotary disc and locking it in place using a clamp-like structure, the user can precisely align the bearing hole according to the actual position of the shaft (e.g., non-vertical). This is particularly useful in complex assembly environments, avoiding the limitations of traditional vertical lifting devices.

[0014] Secondly, in terms of adaptability, the device employs an adjustable radial adaptation mechanism and clamping mechanism, making it suitable for various types and specifications of bearings. The pull ring, spring, and locking screw design of the radial adaptation mechanism allows for axial sliding adjustment of the distance between the two clamping mechanisms, while the spring automatically adapts to the bearing size, ensuring a secure clamping. This makes the device highly versatile, eliminating the need for special tools for different bearings and reducing equipment costs and inventory pressure for enterprises. Furthermore, the fit between the semi-circular pallet bevel of the clamping mechanism and the outer radius of the bearing, as well as the clamping of the pressure block along the self-locking track, further enhances the fixing reliability, preventing slippage or detachment during lifting and improving operational safety.

[0015] Secondly, in terms of ease of use, the device is simple to operate. Simply slip the device over the bearing, pull the ring to adjust the distance, release it, and the spring will automatically position it. Then, press down the pressure block to fix it along the self-locking track, and it's ready for lifting. The entire process requires no complex tools or multiple people; a single person can complete it, making it particularly suitable for fast-paced operations on production lines. The handle and rotating disc of the rotary locking mechanism are ergonomically designed, allowing for manual angle adjustment without an additional power source, thus reducing energy consumption. Furthermore, the device has a compact structure, and the lifting lugs on the top of the lifting frame facilitate connection to lifting equipment, making it suitable for various working environments, such as workshops and maintenance sites.

[0016] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of the bearing hoisting device in this utility model.

[0018] Figure 2 This is a side view of the bearing hoisting device in this utility model.

[0019] Figure 3 This is a schematic diagram of the bearing clamping mechanism in this utility model.

[0020] Figure 4 This is a top view of the rotating frame and pallet.

[0021] Figure 5 This is a schematic diagram of the rotary locking mechanism.

[0022] Figure 6 This is a cross-sectional view of the rotary locking mechanism.

[0023] Figure 7 This is a schematic diagram of a radial adapter mechanism.

[0024] Reference numerals: 1-Lifting frame; 2-Clamping mechanism; 3-Rotation locking mechanism; 4-Radial adaptation mechanism; 5-Rotating disk; 6-Rotating shaft; 21-Rotating frame; 22-Pattern; 23-Self-locking track; 24-Pressure block; 31-Handle; 32-Upper frame; 33-Upper locking ring; 34-Lower locking ring; 35-Lower frame; 36-Locking screw; 41-Spring; 42-Locking screw; 43-Pull ring. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this utility model. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] Example 1 like Figures 1-7 As shown, a bearing hoisting device includes a hoisting frame 1 and a clamping mechanism 2. The top of the hoisting frame 1 is provided with a lifting lug for connecting to hoisting equipment. The lower part of the hoisting frame 1 is provided with two oppositely arranged clamping mechanisms 2. The bearing is placed between the two clamping mechanisms 2 and clamped and fixed to the hoisting frame 1 by the clamping mechanisms 2 on both sides. The two clamping mechanisms 2 are rotatably connected to the hoisting frame 1 by a rotating shaft 6. One of the rotating shafts 6 is provided with a rotary locking mechanism 3 fixedly connected to the hoisting frame 1. The rotation angle of the clamping mechanism is locked by the rotary locking mechanism 3, thereby fixing the hoisting tilt angle of the bearing.

[0029] The rotary locking mechanism 3 includes a rotating disk 5 and a locking mechanism. The rotating disk 5 is fixed to the end of the rotating shaft 6 away from the clamping mechanism 2 and is used for manual rotation to adjust the bearing angle. The locking mechanism adopts a clamp-type structure and is set in the middle section of the rotating shaft 6. The locking mechanism includes upper and lower frames (upper frame 32 and lower frame 35) fixed on the lifting frame 1, semi-circular upper and lower locking rings (upper locking ring 33 and lower locking ring 34), locking screws 36 and handles 31. The upper and lower frames are located on both sides of the rotating shaft 6, serving as the support frame of the locking mechanism. The semi-circular upper and lower locking rings are installed on the inner side of the upper and lower frames, corresponding to the outer circumference of the rotating shaft 6, forming a clamp-like surrounding structure. The locking screws 36 are set on one side of the upper and lower locking rings and are threadedly connected to the upper and lower locking rings. The handle 31 is fixed to the outer end of the locking screw 36. By rotating the handle 31, the upper and lower locking rings can be loosened or locked, thereby realizing the free rotation or fixation of the rotating shaft 6 located in the middle of the upper and lower locking rings, thus controlling the bearing hole to be aligned at any angle.

[0030] The clamping mechanism 2 includes a rotating frame 21, a self-locking track 23, a semi-circular tray 22, and a pressure block 24. The rotating frame 21 is connected to the rotating shaft 6. The semi-circular tray 22 is fixed at the lower end of the rotating frame 21 and has a positioning end face for supporting the lower end of the bearing. The self-locking track 23 is fixed on the rotating frame 21, and the pressure block 24 is located on the self-locking track 23 and moves up and down along the self-locking track 23 to press the upper end face of the bearing and achieve vertical fixation of the bearing. The lower end of the semi-circular tray 22 has an inclined surface that mates with the positioning end face for positioning and guidance in conjunction with the outer radius of the bearing.

[0031] When using the bearing, select the appropriate semi-circular tray 22 according to the bearing specifications and fix it to the lower end of the rotating frame 21. Use the hoisting equipment to move the device above the bearing through the lifting lugs. Manually adjust the clamping mechanism 2 so that the two clamping mechanisms 2 fit into both sides of the outer circle of the bearing. Use the inclined surface at the lower end of the semi-circular tray 22 and the rounded corner of the outer circle of the bearing for positioning and guidance. Then press down the pressure block 24 along the self-locking track 23 to the upper end face of the bearing and lock the self-locking track 23 to achieve vertical fixation of the bearing. According to the installation requirements, rotate the rotating disk 5 to adjust the bearing hole angle to the required position. Drive the locking screw 36 by rotating the handle 31 to make the upper and lower locking rings hug the rotating shaft 6 to ensure the angle is fixed. The bearing can be heated or installed at a specific angle according to actual needs. The whole process is completed in one go, realizing the hoisting, heating and arbitrary angle installation of the bearing.

[0032] Example 2 like Figures 1-7As shown, this embodiment adds a radial adaptation mechanism 4 to the embodiment 1. One of the two rotating shafts 6 is axially slidingly engaged with the lifting frame 1, and the rotating shaft 6 is provided with the radial adaptation mechanism 4. The radial adaptation mechanism 4 drives the clamping mechanism 2 to move, so as to adjust the distance between the two clamping mechanisms 2 and match bearings of different sizes and specifications. The radial adaptation mechanism 4 includes a pull ring 43, a locking screw 42 and a spring 41. The pull ring 43 is located at the end of the rotating shaft 6 away from the clamping mechanism 2, and is used to manually pull and adjust the radial dimension of the clamping mechanism 2. The spring 41 is sleeved between the clamping mechanism 2 and the lifting frame 1, and is used to automatically spring the clamping mechanism 2 back to match the bearing after the pull ring 43 is released. The locking screw 42 is located on the rotating shaft 6 and is used to fix the axial position of the rotating shaft 6.

[0033] When using bearings of complex specifications or in varying environments, and when it is necessary to adapt to bearings of different diameters, manually pull the pull ring 43 of the radial adaptation mechanism 4 to allow one clamping mechanism 2 to slide and extend the distance along the axial direction of the rotating shaft 6. Then, fit both clamping mechanisms 2 onto the outer sides of the bearing. Release the pull ring 43, and the clamping mechanism 2 will automatically spring back to adapt to the bearing under the elastic force of the spring 41. Then, fix the axial position of the rotating shaft 6 with the locking screw 42 to ensure stable distance. Combined with the rotary locking mechanism 3 of Embodiment 1, rotate the rotating disk 5 to adjust the angle, and lock it with the handle 31 to achieve reliable angle control and fixation. This design is particularly suitable for universal hoisting of bearings of different models, significantly improving the adaptability and operational efficiency of the device, and avoiding frequent tool changes due to bearing specification differences.

[0034] In addition, one of the two rotating shafts 6 is equipped with a rotary locking mechanism 3, and the other is equipped with the radial adaptation mechanism 4, or both rotating shafts 6 are equipped with a rotary locking mechanism 3 and a radial adaptation mechanism 4, to further enhance symmetry and stability; in high-temperature heating or tilted installation scenarios, the spring 41 of the radial adaptation mechanism 4 provides automatic reset force to prevent loosening caused by vibration and ensure that the clamping mechanism 2 firmly fixes the bearing. This design is suitable for long-term use in workshops or maintenance sites and significantly improves the environmental adaptability and safety of the device.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bearing hoisting device, comprising a hoisting frame and a clamping mechanism, characterized in that: The top of the hoisting frame is provided with lifting lugs for connecting to hoisting equipment; the lower part of the hoisting frame is provided with two oppositely arranged clamping mechanisms, and the bearing is placed between the two clamping mechanisms and clamped and fixed to the hoisting frame by the clamping mechanisms on both sides; the two clamping mechanisms are rotatably connected to the hoisting frame by a rotating shaft, and one of the rotating shafts is provided with a rotary locking mechanism fixedly connected to the hoisting frame. The rotation angle of the clamping mechanism is locked by the rotary locking mechanism, thereby fixing the hoisting tilt angle of the bearing.

2. The bearing hoisting device according to claim 1, characterized in that: The rotary locking mechanism includes a rotating disk and a locking mechanism; the rotating disk is fixed to the end of the rotating shaft away from the clamping mechanism and is used to manually rotate it to adjust the bearing angle. The locking mechanism adopts a clamp-type structure and is located in the middle section of the rotating shaft. The locking mechanism includes upper and lower frames fixed on the hoisting frame, semi-circular upper and lower locking rings, locking screws, and a handle. The upper and lower frames are located on both sides of the rotating shaft, serving as the support frame for the locking mechanism. The semi-circular upper and lower locking rings are respectively installed on the inner side of the upper and lower frames, corresponding to the outer circumference of the rotating shaft, forming a clamp-like surrounding structure. The locking screw is located on one side of the upper and lower locking rings and is threadedly connected to the upper and lower locking rings. The handle is fixed to the outer end of the locking screw. By rotating the handle to loosen or lock the upper and lower locking rings, the rotating shaft located in the middle of the upper and lower locking rings can be freely rotated or fixed, thereby controlling the bearing hole to be aligned at any angle.

3. The bearing hoisting device according to claim 1, characterized in that: One of the two rotating shafts is axially slidingly engaged with the lifting frame, and the rotating shaft is provided with a radial adaptation mechanism. The radial adaptation mechanism drives the clamping mechanism to move, so as to adjust the distance between the two clamping mechanisms and match bearings of different sizes and specifications.

4. The bearing hoisting device according to claim 3, characterized in that: The radial adaptation mechanism includes a pull ring, a locking screw, and a spring; the pull ring is located at the end of the rotating shaft away from the clamping mechanism and is used to manually pull and adjust the radial dimension of the clamping mechanism. The spring is sleeved between the clamping mechanism and the lifting frame, and is used to automatically spring the clamping mechanism back to fit the bearing after the pull ring is released; the locking screw is set on the rotating shaft and is used to fix the axial position of the rotating shaft.

5. A bearing hoisting device according to claim 1, characterized in that: The clamping mechanism includes a rotating frame, a self-locking track, a semi-circular tray, and a pressure block; The rotating frame is connected to the rotating shaft; the semi-circular tray is fixed at the lower end of the rotating frame, and the semi-circular tray is provided with a positioning end face to support the lower end of the bearing; the self-locking track is fixed on the rotating frame, and the pressure block is provided on the self-locking track and moves up and down along the self-locking track to press the upper end face of the bearing and realize the vertical fixation of the bearing.

6. A bearing hoisting device according to claim 5, characterized in that: The lower end of the semi-circular tray is provided with an inclined surface that mates with the positioning end face, which is used to position and guide the bearing by engaging with the outer radius of the bearing.

7. A bearing hoisting device according to claim 3, characterized in that: One of the two rotating shafts is provided with the rotary locking mechanism, and the other is provided with the radial adaptation mechanism, or both of the two rotating shafts are provided with both the rotary locking mechanism and the radial adaptation mechanism.

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