A bearing ring extraction tool

Abstract

The utility model discloses a bearing ring takes out tool, including hooking device and ejector rod, and hooking device includes the tube and drive rod, and the tube is sleeved in the drive rod outside, and the tube outer wall one end is equipped with a circle protruding hook head, and the drive rod movable mounting is in the tube, and the drive rod length is longer than the tube, and the drive rod one end extends to the hook head end outside of the tube and is fixedly connected with extrusion head, and the extrusion head can make the hook head end of the tube form the expansion deformation effect, and the expansion hook head can hook the bearing ring, and the ejector rod one end is in contact with the extrusion head, and the utility model discloses first through hooking device to realize the connection fixed of bearing outer ring, then uses the ejector rod and abuts hooking device, and drives the bearing ring through the knocking means, and the utility model has the advantages of simple structure, convenient operation, low manufacturing cost, and is suitable for machine repair shop popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for machine repair, and more specifically, to a bearing ring removal tool. Background Technology

[0002] Bearings are widely used in textile machinery as a common transmission component. Used for load bearing and transmission, bearings are relatively easy to damage under the long-term, high-intensity working environment of textile machinery. When a bearing fails, it needs to be disassembled and replaced. However, some bearings are installed in confined bearing housings. While the inner ring and rollers are easy to remove, the outer ring is tightly fitted to the bearing mounting hole. In such confined spaces, conventional tools cannot be used to remove the outer ring, making the removal process very time-consuming and labor-intensive. Therefore, the machinery department needs to design specialized tools to meet the requirements for bearing ring removal. Utility Model Content

[0003] The purpose of this utility model is to address the needs of the prior art and provide a bearing ring removal tool. This utility model first uses a hook to connect and fix the outer ring of the bearing, and then uses an ejector rod to abut against the hook and push out the bearing ring by striking.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A bearing ring removal tool includes a hook and an ejector rod. The hook includes a tube and a drive rod. The tube is fitted onto the outside of the drive rod. One end of the outer wall of the tube has a raised hook. The drive rod is movably installed inside the tube and is longer than the tube. One end of the drive rod extends to the outside of the hook end of the tube and is fixedly connected to an expansion head. The expansion head causes the hook end of the tube to expand and deform, and the expanded hook can hook onto the bearing ring. One end of the ejector rod abuts against the expansion head. By striking the ejector rod, the hook and the bearing ring can be moved together.

[0006] Furthermore, the tube is provided with a threaded section inside, which is located on the opposite side of the hook end of the tube, and the drive rod is threadedly connected to the threaded section.

[0007] Furthermore, the extrusion head is conical, and the maximum outer diameter of the extrusion head is greater than the inner diameter of the tube at the hook end.

[0008] Furthermore, the extrusion head is inserted into the inner hole of the tube.

[0009] Furthermore, the outer wall of the tube is provided with a number of deformation grooves, all of which are located at the hook end of the tube. The deformation grooves penetrate the outer wall of the tube in the depth direction and are open at one end and extend towards the non-hook end of the tube in the length direction.

[0010] Furthermore, the number of deformation grooves is three, and the three deformation grooves are evenly distributed along the circumference of the outer wall of the tube.

[0011] Furthermore, a transverse lever is connected to the non-expansion head end of the drive rod, and the transverse lever is welded to the end of the drive rod at the central position.

[0012] Furthermore, a handle is fixedly connected to the outer wall of the tube, and the handle is laterally connected to the outer wall of the tube.

[0013] Furthermore, one end of the ejector rod is connected to a disc head, and the ejector rod uses its non-disc head end to abut against the extrusion head.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model is reasonably designed. First, the outer ring of the bearing is connected and fixed by a hook, and then the ejector rod is used to abut against the hook, and the bearing ring is ejected by a knocking method.

[0016] 2. This utility model has a simple structure, is easy to operate, and has a relatively low manufacturing cost, making it suitable for widespread application in machine repair workshops. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a bearing ring removal tool in this embodiment;

[0018] Figure 2 This is a cross-sectional view of the hook in this embodiment;

[0019] Figure 3 This is a schematic diagram of a bearing ring removal tool in this embodiment when removing the bearing ring.

[0020] Reference numerals: hook 1, tube 11, hook head 111, threaded section 112, deformation groove 113, drive rod 12, extrusion head 121, horizontal lever 122, handle 13, ejector rod 2, pan head 21, bearing seat 3, bearing outer ring 4, groove 41. Detailed Implementation

[0021] 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.

[0022] like Figure 3 As shown, the bearing is installed in a confined space within the bearing housing 3. While the inner ring and rollers are easily removed, the outer ring 4 is tightly fitted to the inner bore of the bearing housing 3. Due to the limited space within the bearing housing 3, common tools cannot be used to remove the outer ring 4. Therefore, removing the bearing ring during mechanical operations presents a problem. To solve this problem, as... Figure 1 and Figure 2 As shown, this utility model provides a dedicated bearing ring removal tool, which includes a hook 1 and an ejector rod 2. The hook 1 includes a tube 11 and a drive rod 12. The tube 11 is fitted onto the outside of the drive rod 12, and the drive rod 12 is movably installed inside the tube 11, allowing the drive rod 12 to move relative to the tube 11. A raised hook head 111 is provided at one end of the outer wall of the tube 11. The drive rod 12 is longer than the tube 11, and one end of the drive rod 12 extends to the outside of the hook head 111 end of the tube 11 and is fixedly connected to an expansion head 121 (when assembling the tool, first insert the drive rod 12, and then weld the expansion head 121 to one end of the drive rod 12). The expansion head 121 can cause the hook head 111 end of the tube 11 to form an expansion deformation effect, such as... Figure 3 As shown, the outer ring 4 of the bearing has a groove 41 (for mounting rollers). This invention utilizes the groove 41 structure to remove the bearing ring. The hook 111 is designed to match the groove 41. The hook 111 end of the tube 11 is designed with an expansion deformation. When not expanded, the outer diameter of the hook 111 end of the tube 11 is smaller than the inner diameter of the outer ring 4 of the bearing. This facilitates the hook 111 end of the tube 11 falling into the inner part of the outer ring 4 of the bearing. After the hook 111 end expands and deforms, the expanded hook 111 can be inserted into the groove. Within 41, the entire hook 1 hooks the bearing ring. After hooking, the ejector rod 2 is needed. One end of the ejector rod 2 abuts against the extrusion head 121. By striking the ejector rod 2, the hook 1 and the bearing ring can be moved together, so that the bearing ring can be removed from the bearing seat 3. This utility model has fewer parts, is easy to manufacture, and has a low manufacturing cost. This utility model is easy to operate and has a good practical application effect. It can effectively meet the needs of quickly removing the bearing ring. This utility model is suitable for promotion and application in machine repair workshops.

[0023] like Figure 2As shown, the tube 11 has a threaded section 112 inside. The threaded section 112 is located on the opposite side of the hook 111 end of the tube 11, that is, the other end of the tube 11. The drive rod 12 is threadedly connected to the threaded section 112. The drive rod 12 can form a threaded rotation effect relative to the tube 11.

[0024] like Figure 1 As shown, the outer wall of the tube 11 has several deformation grooves 113. All deformation grooves 113 are located at the hook end 111 of the tube 11. The deformation grooves 113 penetrate the outer wall of the tube 11 in the depth direction and are designed to be open at one end and extend towards the non-hook end 111 of the tube 11 in the length direction. There are three deformation grooves 113, which are evenly distributed around the outer wall of the tube 11. The entire extraction tool is made of metal. Due to the presence of multiple deformation grooves 113, therefore... The hook end 111 of the tube 11 can expand under the action of internal force. The expansion can increase the outer diameter of the hook end 111 of the tube 11, so that the hook end 111 can be inserted into the groove 41 of the bearing ring. The metal material itself has a certain resistance to deformation and recovery. After the internal force of the hook end 111 disappears, the hook end 111 of the tube 11 can return to its original state, that is, the outer diameter of the hook end 111 is smaller than the inner diameter of the bearing ring. This makes it easier to install the hook end 111 of the tube 11 and also makes it easier to separate and remove the bearing ring.

[0025] The deformation of the hook 111 end of the tube 11 is achieved by the expansion head 121, such as Figure 2As shown, the extrusion head 121 is welded to the end of the drive rod 12. The extrusion head 121 is conical, and its maximum outer diameter is larger than the inner diameter of the tube 11 at the hook end 111. The extrusion head 121 is partially inserted into the inner hole of the tube 11. As the drive rod 12 screws into the tube 11, it drives the extrusion head 121 to move. The extrusion head 121 has two movement states: one is moving away from the hook end 111 of the tube 11, in which case the extrusion head 121 does not exert force on the hook end 111 of the tube 11; the other is moving towards the hook end 111 of the tube 11. Since the maximum outer diameter of the extrusion head 121 is larger than the inner diameter of the tube 11 at the hook end 111, the outer wall of the extrusion head 121 will abut against the inner diameter of the tube 11 at the hook end 111. On the bore wall, with the rotation of the drive rod 12 and the presence of the deformation groove 113, the extrusion head 121 will generate an outward expansion force on the hook end 111 of the tube 11. The hook end 111 of the tube 11 expands and deforms outward. The deformed hook end 111 inserts into the groove 41 of the bearing ring until the drive rod 12 can no longer be rotated. The hook end 111 has been fully inserted into the groove 41, and the hook 1 and the bearing ring have achieved a complete hook connection. At this time, tapping the hook 1 will cause the hook 1 and the bearing ring to move together (the inner space of the bearing seat 3 is small and cannot directly act on the bearing ring. It can only rely on the hook 1 to form an extension of the bearing ring. In this way, by tapping the hook 1 as an extension, the bearing ring can be removed). Tapping the hook 1 requires the use of the matching ejector rod 2, such as Figure 3 As shown, one end of the ejector rod 2 is connected to a disc head 21, which is used as a striking end. The disc head 21 can expand the striking surface. The ejector rod 2 uses the non-disc head 21 end to abut against the extrusion head 121. Striking the disc head 21 can transmit the force to the extrusion head 121 through the ejector rod 2, and then drive the bearing ring to move through the expanded hook head 111 end.

[0026] like Figure 1 and Figure 2 As shown, a horizontal lever 122 is connected to the non-expansion head 121 end of the drive rod 12. The horizontal lever 122 is welded to the end of the drive rod 12 at the central position. The horizontal lever 122 can help to turn the drive rod 12, which facilitates the operation of the tool.

[0027] like Figure 1 and Figure 2 As shown, a handle 13 is fixedly connected to the outer wall of the tube 11. The handle 13 is horizontally connected to the outer wall of the tube 11. The handle 13 is also for the convenience of working and operating the tool. The worker uses one hand to hold the handle 13 to operate the hook 1 to stably insert it into the bearing ring. The worker's other hand can be used to operate the horizontal lever 122 to turn the drive rod 12, so that the hook 1 hooks with the bearing ring.

[0028] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A bearing ring removal tool, characterized in that, The device includes a hook (1) and a push rod (2). The hook (1) includes a tube (11) and a drive rod (12). The tube (11) is fitted onto the outside of the drive rod (12). One end of the outer wall of the tube (11) is provided with a ring of protruding hooks (111). The drive rod (12) is movably installed inside the tube (11). The length of the drive rod (12) is longer than that of the tube (11). One end of the drive rod (12) An expansion head (121) is fixedly connected to the outside of the hook (111) end of the tube (11). The expansion head (121) can cause the hook (111) end of the tube (11) to expand and deform. The expanded hook (111) can hook the bearing ring. One end of the ejector rod (2) abuts against the expansion head (121). By striking the ejector rod (2), the hook (1) and the bearing ring can be driven together.

2. The bearing ring removal tool according to claim 1, characterized in that, The tube (11) is provided with a threaded section (112) inside. The threaded section (112) is located on the opposite side of the hook (111) end of the tube (11). The drive rod (12) is threadedly connected to the threaded section (112).

3. The bearing ring removal tool according to claim 1, characterized in that, The extrusion head (121) is conical, and the maximum outer diameter of the extrusion head (121) is greater than the inner diameter of the tube (11) at the hook end (111).

4. The bearing ring removal tool according to claim 1, characterized in that, The extrusion head (121) is partially inserted into the inner hole of the tube (11).

5. The bearing ring removal tool according to claim 1, characterized in that, The outer wall of the tube (11) is provided with a plurality of deformation grooves (113). All the deformation grooves (113) are provided at the hook (111) end of the tube (11). The deformation grooves (113) penetrate the outer wall of the tube (11) in the depth direction. The deformation grooves (113) are provided with one end open and the other end extending towards the non-hook (111) end of the tube (11) in the length direction.

6. The bearing ring removal tool according to claim 5, characterized in that, The number of deformation grooves (113) is three, and the three deformation grooves (113) are evenly distributed along the outer wall of the tube (11).

7. The bearing ring removal tool according to claim 1, characterized in that, The non-expansion head (121) end of the drive rod (12) is connected to a horizontal lever (122), which is welded to the end of the drive rod (12) at the central position.

8. The bearing ring removal tool according to claim 1, characterized in that, A handle (13) is fixedly connected to the outer wall of the tube (11), and the handle (13) is laterally connected to the outer wall of the tube (11).

9. A bearing ring removal tool according to claim 1, characterized in that, One end of the ejector rod (2) is connected to a disc head (21), and the ejector rod (2) uses the non-disc head (21) end to abut against the extrusion head (121).

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