A bearing replacement aid

Abstract

The utility model discloses a bearing replacement auxiliary device, include: the hook is hooked in the drum shaft in the conveyer frame one end, screw rod, one end with the other end fixed connection of hook, stable buckle, sliding sleeve is established on the screw rod outer wall, limiting nut, rotation sleeve is established on the screw rod outer wall, and is arranged between stable buckle with hook, hand wheel, rotation sleeve is established on the screw rod outer wall, and is arranged in the other end of screw rod, hand wheel with the position of limiting nut cooperation fixed stable buckle, wherein, limiting nut, hand wheel with the coaxial setting of screw rod. The utility model provides a bearing replacement auxiliary device, simple structure, convenient operation can operate alone, need not to dismantle the tensioner, and the bearing is replaced fast, and the maintenance cost is reduced, and the operation safety and efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of warehousing equipment maintenance tools, and specifically relates to a bearing replacement auxiliary device. Background Technology

[0002] In the central grain reserve storage operations, the conveyor is the core equipment for realizing grain transfer. As a key rotating component of the conveyor, the UC bearing of the roller is under high load for a long time and is prone to wear, damage and other failures, requiring regular inspection and replacement.

[0003] The existing UC bearing replacement operation has significant defects: in order to relieve the continuous tension of the conveyor belt on the roller, the conveyor tensioner must be loosened first, and then the tail roller must be removed. The whole process requires two operators to work together. This operation method is not only cumbersome and time-consuming, but also has the risk of secondary failure due to positioning deviation during equipment disassembly and resetting. At the same time, the two-person operation also increases labor costs and seriously affects the maintenance efficiency and safety of warehouse equipment. Utility Model Content

[0004] The purpose of this invention is to provide a bearing replacement aid that has a simple structure, is easy to operate, can be operated by a single person, and allows for quick bearing replacement without disassembling the tensioner.

[0005] The technical solution provided by this utility model is as follows: A bearing replacement aid, comprising: The hook has one end attached to the roller shaft inside the conveyor frame; A lead screw, one end of which is fixedly connected to the other end of the hook; A secure buckle is slidably fitted onto the outer wall of the lead screw; A limiting nut is rotatably sleeved on the outer wall of the lead screw and positioned between the stabilizing buckle and the hook; A handwheel is rotatably mounted on the outer wall of the lead screw and located at the other end of the lead screw; the handwheel cooperates with the limiting nut to fix the position of the stabilizing buckle; The limiting nut, the handwheel, and the lead screw are coaxially arranged.

[0006] Preferably, the handwheel and the lead screw, and the limit nut and the lead screw are all connected by threads.

[0007] Preferably, the hook is made of 3mm thick steel strip; the stabilizing buckle is made of 5mm thick iron plate; the lead screw is a full-thread large-diameter lead screw; and the limiting nut is a type 1 large-diameter hexagonal nut.

[0008] Preferably, the hook includes: The hook-shaped end allows it to hook onto the roller shaft; The connecting part is L-shaped; one end of the connecting part is fixedly connected to the hook-shaped end, and the other end is fixedly connected to the lead screw.

[0009] Preferably, the stabilizing buckle includes: The tray is a rectangular plate; A long through groove is provided at one end of the tray along the axial direction of the tray; Two rectangular clamping plates are arranged in parallel and are both perpendicular to the support plate at the other end of the support plate.

[0010] Preferably, the lead screw is slidably disposed within the elongated groove.

[0011] Preferably, the handwheel includes: The fastening nut is a type 1 large-thread hexagonal nut. A circular ring, which is fixedly connected to the fastening nut; Multiple cylinders are arranged radially along the ring; one end of each cylinder is fixedly connected to the outer ring of the ring and is evenly distributed along the circumference of the ring.

[0012] Preferably, it also includes: Two flat washers are slidably fitted on the lead screw and respectively positioned between the limit nut and the retaining buckle, and between the handwheel and the retaining buckle.

[0013] The beneficial effects of this utility model are: the bearing replacement auxiliary device provided by this utility model has a simple structure, is easy to operate, can be operated by a single person, does not require disassembling the tensioner, can quickly replace the bearing, reduce maintenance costs, and improve work safety and efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the bearing replacement aid described in this utility model.

[0015] Figure 2 This is an isometric structural diagram of the bearing replacement aid described in this utility model.

[0016] Figure 3 This is a front view of the bearing replacement aid described in this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the hook described in this utility model.

[0018] Figure 5 This is a schematic diagram of the overall structure of the sturdy buckle described in this utility model.

[0019] Figure 6This is a schematic diagram of the overall structure of the front side of the handwheel described in this utility model.

[0020] Figure 7 This is a schematic diagram of the overall structure of the rear side of the handwheel described in this utility model.

[0021] Figure 8 This is a front view of the handwheel described in this utility model.

[0022] Figure 9 This is a side view of the handwheel described in this utility model.

[0023] Figure description: Hook 110, hook-shaped end 111, connecting part 112, lead screw 120, stabilizing buckle 130, support plate 131, clamping plate 132, long through groove 133, limit nut 140, handwheel 150, fastening nut 151, ring 152, cylinder 153, connecting rod 154, flat washer 160. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0025] like Figure 1-3As shown, this utility model provides a bearing replacement aid, comprising: a hook 110, one end of which hooks onto the roller shaft inside the conveyor frame; the hook 110 is made entirely of 3mm thick steel strip, making it both lightweight and structurally strong. This avoids operational inconvenience due to excessive component weight and can withstand the continuous tension of the conveyor belt on the roller, preventing bending or breakage during long-term use. The steel strip also has a smooth surface and good ductility, facilitating subsequent rust prevention treatment. A lead screw 120, one end of which is fixedly connected to the other end of the hook 110; the lead screw 120 is a full-thread large-diameter lead screw, allowing the operator to quickly achieve axial displacement when rotating the limit nut 140 and handwheel 150, reducing adjustment time. A stabilizing buckle 130 is slidably sleeved on the outer wall of the lead screw 120; the stabilizing buckle 130 is made of 5mm thick iron plate, capable of withstanding the tension transmitted by the lead screw without deformation, ensuring stable positioning. A limiting nut 140 is rotatably sleeved on the outer wall of the lead screw 120 and positioned between the securing buckle 130 and the hook 110; the limiting nut 140 is a type 1 large-thread hexagonal nut. A handwheel 150 is rotatably sleeved on the outer wall of the lead screw 120 and positioned at the other end of the lead screw 120; the handwheel 150 cooperates with the limiting nut 140 to fix the position of the securing buckle 130. Two flat washers 160 are slidably sleeved on the lead screw 120 and positioned between the limiting nut 140 and the securing buckle 130, and between the handwheel 150 and the securing buckle 130, respectively; the inner diameter of the flat washer 160 is adapted to the outer diameter of the lead screw 120, and its outer diameter is larger than the outer diameter of the locking nut 151 of the limiting nut 140 and the handwheel 150, ensuring that it can completely cover the contact area between the nut and the securing buckle 130. The limiting nut 140, the handwheel 150, the two flat washers 160, and the lead screw 120 are coaxially arranged. The handwheel 150 and the lead screw 120, as well as the limiting nut 140 and the lead screw 120, are all connected by threads. The outer diameter of the lead screw 120 is precisely matched with the inner thread diameter of the fastening nut 151 of the limiting nut 140 and the handwheel 150, which ensures the tightness of the threaded connection, prevents loosening during use, and ensures that the operator can turn the nut smoothly without excessive force to adjust the tension.

[0026] like Figure 4 As shown, the hook 110 includes: a hook-shaped end 111, which is processed by an arc bending process, and the radius of the arc surface is precisely matched with the outer diameter of the conveyor roller shaft to ensure that it can fit tightly with the roller shaft when hooked, avoiding slippage or misalignment; a connecting part 112, which is L-shaped and formed by right-angle bending; one end of the connecting part 112 is fixedly connected to the hook-shaped end 111, and the other end is fixedly connected to the lead screw 120.

[0027] like Figure 5 As shown, the stabilizing buckle 130 includes: a support plate 131, which is a rectangular plate; a long through groove 133, which is axially disposed at one end of the support plate 131; the width of the long through groove 133 is smaller than the outer diameter of the flat washer 160; and two clamping plates 132, which are rectangular plates, arranged in parallel and perpendicular to the support plate 131 at the other end of the support plate 131. The lead screw 120 is slidably disposed within the long through groove 133; the diameter of the lead screw 120 is smaller than the width of the long through groove 133, allowing the stabilizing buckle 130 to slide axially along the lead screw 120 to accommodate roller shafts and frame columns with different spacings, and also to move slightly radially along the lead screw 120, facilitating quick alignment with the frame column during installation and solving positioning problems caused by conveyor frame installation errors.

[0028] like Figure 6-9 As shown, the handwheel 150 includes: a fastening nut 151, which is a type 1 large-thread hexagonal nut; a ring 152, which is fixedly connected to the fastening nut 151 via multiple connecting rods 154; the diameter of the ring 152 is larger than that of the fastening nut 151; in this embodiment, there are two connecting rods 154; and multiple cylinders 153, all arranged radially along the ring 152; one end of each cylinder 153 is fixedly connected to the outer ring of the ring 152, and they are evenly arranged along the circumference of the ring 152, increasing the radius of force application for the operator and facilitating the operator to rotate the fastening nut 151. In this embodiment, there are three cylinders 153.

[0029] The operator inserts the hook-shaped end 111 of the hook 110 along the inner side of the conveyor frame and hooks it onto the roller shaft. The operator then pushes the securing buckle 130 to the conveyor frame riser, using the two clamping plates 132 and the support plate 131 to secure the securing buckle 130 onto the riser. The operator then rotates the handwheel 150. Since the handwheel 150 is threadedly connected to the lead screw 120, the handwheel 150 moves towards the securing buckle 130 during rotation, locking the securing buckle 130 while simultaneously moving the roller shaft. The drum shaft provides tension. When the drum shaft is tightened, the handwheel 150 is stopped from rotating. The limiting nut 140 is rotated so that it gradually approaches the stabilizing buckle 130 and engages with the handwheel 150 to lock the stabilizing buckle 130 in place. The stabilizing buckle 130 is then fixed in its current position. The UC bearing fixing screw on the drum is unscrewed with a wrench, the damaged bearing is removed, a new bearing is replaced, and the bearing fixing screw is tightened with a wrench to complete the bearing replacement. Finally, the auxiliary device is removed to complete the replacement of the damaged bearing.

[0030] The bearing replacement aid provided by this utility model has a simple structure and is easy to operate. It can be operated by a single person without disassembling the tensioner, and can quickly replace the bearing, reducing maintenance costs and improving work safety and efficiency. This utility model provides a bearing replacement aid that utilizes a lead screw adjustment, allowing a single person to complete the entire process of hook connection, secure buckle positioning, and tension adjustment without the need for two people. It also eliminates the need to loosen the conveyor tensioner or remove the tail roller, saving tedious disassembly steps, shortening replacement time, and improving work efficiency. The fully threaded lead screw supports arbitrary sliding of components, and the long through-groove design allows for radial micro-adjustment, adapting to different specifications of warehouse conveyors. The 3mm thick steel strip hook and 5mm thick iron plate secure buckle combine lightweight and toughness, and with an anti-rust coating, it can resist dust and slight moisture in the storage environment, extending the tool's service life. The handwheel, composed of a cylinder, ring, and fastening nut, reduces the difficulty of rotation for the operator, making it easy to turn the fastening nut. The overall material cost is low, requiring no complex processing equipment, and is easy to mass-produce. During operation, the secure buckle and hook form a stable force system, preventing roller misalignment due to conveyor belt tension and reducing secondary equipment failures.

[0031] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A bearing replacement aid, characterized in that, include: The hook has one end attached to the roller shaft inside the conveyor frame; A lead screw, one end of which is fixedly connected to the other end of the hook; A secure buckle is slidably fitted onto the outer wall of the lead screw; A limiting nut is rotatably sleeved on the outer wall of the lead screw and positioned between the stabilizing buckle and the hook; A handwheel is rotatably mounted on the outer wall of the lead screw and located at the other end of the lead screw; the handwheel cooperates with the limiting nut to fix the position of the stabilizing buckle; The limiting nut, the handwheel, and the lead screw are coaxially arranged.

2. The bearing replacement aid according to claim 1, characterized in that, The handwheel and the lead screw, as well as the limit nut and the lead screw, are all connected by threads.

3. The bearing replacement aid according to claim 1, characterized in that, The hook is made of 3mm thick steel strip; the stabilizing buckle is made of 5mm thick iron plate; the lead screw is a full-thread large-diameter lead screw; and the limiting nut is a type 1 large-diameter hexagonal nut.

4. The bearing replacement aid according to claim 1, characterized in that, The hook includes: The hook-shaped end allows it to hook onto the roller shaft; The connecting part is L-shaped; one end of the connecting part is fixedly connected to the hook-shaped end, and the other end is fixedly connected to the lead screw.

5. The bearing replacement aid according to claim 2, characterized in that, The stabilizing buckle includes: The tray is a rectangular plate; A long through groove is provided at one end of the tray along the axial direction of the tray; Two rectangular clamping plates are arranged in parallel and are both perpendicular to the support plate at the other end of the support plate.

6. The bearing replacement aid according to claim 5, characterized in that, The lead screw is slidably disposed within the long through groove.

7. The bearing replacement aid according to claim 1, characterized in that, The handwheel includes: The fastening nut is a type 1 large-thread hexagonal nut. A circular ring, which is fixedly connected to the fastening nut; Multiple cylinders are arranged radially along the ring; one end of each cylinder is fixedly connected to the outer ring of the ring and is evenly distributed along the circumference of the ring.

8. The bearing replacement aid according to claim 1, characterized in that, Also includes: Two flat washers are slidably fitted on the lead screw and respectively positioned between the limit nut and the retaining buckle, and between the handwheel and the retaining buckle.

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