A deep groove ball bearing outer ring extractor

Abstract

The utility model relates to bearing frock equipment technical field, especially deep groove ball bearing outer ring extractor, the utility model discloses a main rod, three -way pipe, annular frame, tensioning screw rod, spherical part, press groove, pivot and jointing prong, the middle pipe orifice of three -way pipe is connected to the tail end of main rod, and annular frame fixed sleeve is set on the pipe orifice of three -way pipe both ends, and two tensioning screw rods are respectively inserted with the pipe orifice of three -way pipe both ends, and the end of each tensioning screw rod is equipped with spherical part, and press groove is opened in the side wheel surface of annular frame, and pivot is movably installed in press groove side wall, and the middle sleeve of jointing prong is connected in pivot, and jointing prong includes the press end of one end, and the other end of jointing prong is locking end, and press end is higher than locking end, when press end is pressed down, drive locking end to lift and compress spring, make jointing piece separate from tensioning screw rod, when this pulls screw rod and makes spherical end resist outer ring, after releasing press end, spring rebound pushes jointing piece and meshing tooth and engages locking screw rod and makes screw rod fixed.

Description

Technical Field

[0001] This utility model relates to the field of bearing disassembly tooling technology, and in particular to a deep groove ball bearing outer ring extractor. Background Technology

[0002] A bearing puller (also known as a bearing puller) is a specialized mechanical tool for disassembling interference-fit bearings. It uses adjustable claws to hook onto the edge of the bearing's inner or outer ring, and utilizes the strong axial pulling force generated by the central screw to smoothly and without damage remove the bearing from the journal, hub, or housing bore, avoiding the component damage caused by traditional hammering methods. Its simple and efficient structure makes it widely used in mechanical repair, automotive manufacturing, equipment maintenance, and other fields. It significantly improves disassembly efficiency and protects the integrity of critical components, providing a professional solution to replace primitive methods such as hammers and chisels.

[0003] However, existing equipment often encounters the following problems during use:

[0004] Traditional bearings often fail during use. When the damage is severe, the inner and outer rings of the bearing separate, and the outer ring becomes stuck in the bearing bore and cannot be removed. Utility Model Content

[0005] The main objective of this invention is to provide a deep groove ball bearing outer ring extractor to effectively solve the problem mentioned in the background art where existing traditional bearings frequently fail during use, and in severe cases, the inner and outer rings separate, with the outer ring embedded in the bearing bore and impossible to remove. In this invention, when the pressing end is pressed down, the driving locking end tilts up and compresses the spring, causing the locking member to disengage from the tensioning screw. At this point, pulling the screw causes the spherical end to press against the outer ring. After releasing the pressing end, the spring rebounds, pushing the locking member to engage with the meshing teeth and lock the screw, thus fixing the screw in place. The centrifugal force generated by the reciprocating sliding of the sliding hammer is transmitted through the three-way pipe to the two tensioning screws, driving the spherical member to apply radial force outwards, ultimately allowing the outer ring to be removed.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A deep groove ball bearing outer ring extractor, comprising:

[0008] Main rod;

[0009] A three-way pipe, wherein the end of the main rod is connected to the middle opening of the three-way pipe;

[0010] An annular frame, which is fixedly fitted onto the pipe openings at both ends of the tee pipe;

[0011] Two tensioning screws are provided, and the two tensioning screws are respectively inserted into the pipe openings at both ends of the tee pipe;

[0012] A spherical component is provided at the end of each of the tensioning screws;

[0013] The pressing groove is formed on the side wheel surface of the annular frame;

[0014] A rotating shaft is movably mounted on the side wall of the pressing groove;

[0015] A snap-fit ​​lever is fitted onto the rotating shaft at its center. The snap-fit ​​lever has a pressing end at one end and a locking end at the other end, with the pressing end being higher than the locking end.

[0016] Also includes:

[0017] A spring is disposed between the inner wall of the annular frame and the locking end;

[0018] A snap-fit ​​connector, which is fixed to the locking end and is sleeved onto the body of the tensioning screw;

[0019] Engaging teeth, the engaging teeth being disposed at the sleeve end of the snap-fit ​​member;

[0020] A sliding weight, which is slidably fitted onto the shaft of the main rod.

[0021] The two tensioning screws are symmetrically positioned about the cross-section of the main rod.

[0022] The diameter of the spherical component is larger than the diameter of the screw.

[0023] The meshing teeth mesh with the tensioning screw.

[0024] The pivot causes the latching lever to form a lever mechanism.

[0025] The fastener is a U-shaped buckle.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: When the pressing end of this utility model is pressed down, the driving locking end tilts up and compresses the spring, causing the snap-fit ​​to disengage from the tension screw. At this time, the screw is pulled so that the spherical end abuts against the outer ring. After the pressing end is released, the spring rebounds and pushes the snap-fit ​​to engage with the meshing teeth to lock the screw, thus fixing the screw. The centrifugal force generated when the sliding hammer slides back and forth is transmitted to the two tension screws through the three-way pipe, driving the spherical part to apply radial force to the outer circumference, and finally causing the outer ring to be removed. The whole process is simple and quick, and the quick fixing of the snap-fit ​​allows the screw to adapt to bearings of any size, enhancing adaptability. Attached Figure Description

[0027] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0028] Figure 1 This is a schematic diagram of the overall shape of the present utility model.

[0029] Figure 2 This is a front view of the present utility model.

[0030] Figure 3 for Figure 2 A magnified view of A in the middle.

[0031] Figure 4 This is a cross-sectional view of the snap-fit ​​lever of this utility model.

[0032] The following are the labels in the diagram: 1. Main rod; 2. T-joint; 3. Annular frame; 4. Tensioning screw; 5. Spherical part; 6. Pressing groove; 7. Rotating shaft; 8. Snap-fit ​​lever; 81. Pressing end; 82. Locking end; 9. Spring; 10. Snap-fit ​​part; 11. Engaging teeth; 12. Sliding hammer. Detailed Implementation

[0033] 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.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" 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 will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figure 1-4 As shown, this utility model provides a deep groove ball bearing outer ring extractor. The automatic feeding mechanism of the tire changer includes a main rod 1, a three-way pipe 2, an annular frame 3, a tensioning screw 4, a spherical component 5, a pressing groove 6, a rotating shaft 7, and a snap-fit ​​lever 8.

[0036] The end of the main rod 1 is connected to the middle opening of the tee pipe 2; the main pipe connects to and supports the tee pipe 2; it provides a linear sliding track for the slide hammer 12; it efficiently transmits the impact force generated by the slide hammer 12 to the tee pipe 2 and the tensioning screws 4 on both sides; the annular frame 3 is fixedly sleeved on the openings at both ends of the tee pipe 2; it is fixedly sleeved on both ends of the tee pipe 2, providing a stable mounting base for the rotating shaft 7, the snap-fit ​​lever 8, the spring 9, and the snap-fit ​​component 10; it forms a space to accommodate the snap-fit ​​mechanism; the side wall of the pressing groove 6 on it is used to install the rotating shaft 7.

[0037] In this invention, two tensioning screws 4 are provided, each inserted into the end ports of the tee pipe 2. The two tensioning screws 4 are symmetrically positioned about the cross-section of the main rod 1. The tensioning screws 4, inserted into the ports of the tee pipe 2, can be axially moved to adjust their extension length. The spherical part 5 at its end is used to abut and hook onto the inner groove of the bearing outer ring. By adjusting its extension length, it can adapt to bearing outer rings of different sizes. The impact tension transmitted by the tee pipe 2 is applied to the bearing outer ring. Each tensioning screw... Each end of 4 is provided with a spherical part 5, the diameter of which is larger than that of the screw, forming a reliable "hooking point" to prevent slippage from the groove; the spherical curved surface can fit well with the arc surface of the inner groove of the bearing outer ring, increasing the contact area, reducing stress concentration, and avoiding damage to the groove surface; it is convenient to adjust the angle in the groove, and the pressing groove 6 is opened on the side wheel surface of the annular frame 3; the rotating shaft 7 is movably installed on the side wall of the pressing groove 6; the rotating shaft 7 makes the locking piece 8 form a lever mechanism.

[0038] In this utility model, the middle part of the snap-fit ​​lever 8 is sleeved on the rotating shaft 7. The snap-fit ​​lever 8 includes a pressing end 81 at one end and a locking end 82 at the other end. The pressing end 81 is higher than the locking end 82. The pressing end 81 has a longer lever arm for the user to press down. The locking end 82 has a shorter lever arm and connects to and controls the snap-fit ​​component 10. When the pressing end 81 is pressed down, the locking end 82 is lifted, which drives the snap-fit ​​component 10 to disengage from the tension screw 4 and unlock. When the pressing end 81 is released, it resets under the action of the spring 9, and the locking end 82 presses down to make the snap-fit ​​component 10 engage with the screw and lock.

[0039] In this utility model, the spring 9 is located between the inner wall of the annular frame 3 and the locking end 82, and the snap fastener 10 is fixed to the locking end 82. The snap fastener 10 is sleeved on the body of the tensioning screw 4. The snap fastener 10 is a U-shaped buckle and is fixed to the locking end 82 of the snap fastener 8. The U-shaped buckle design facilitates quick insertion into the body of the tensioning screw 4. The inner side of its sleeve end is machined with meshing teeth 11 for meshing with the screw thread to prevent the screw from retracting or loosening when under force, ensuring that the clamping force of the ball part 5 on the outer ring of the bearing is maintained during the impact. The meshing teeth 11 are located at the sleeve end of the snap fastener 10 and mesh with the tensioning screw 4 to prevent the screw from sliding into the three-way pipe 2 under tension, ensuring that the tension is effectively applied to the outer ring of the bearing.

[0040] In this invention, the sliding hammer 12 is slidably sleeved on the shaft of the main rod 1. The user can strike the end of the main rod 1 or a certain stop by rapidly reciprocating the sliding hammer 12. Although not explicitly shown in the figure, the description of the momentum centrifugal force generated by its mass and velocity is not accurate enough here. It should be the transformation of the impact force or inertial force into an instantaneous high-intensity tensile pulse. This dynamic impact force is more effective than continuous static tensile force and is particularly suitable for removing the outer ring of an interference fit or slightly corroded bearing.

[0041] It should be noted that, in use, the deep groove ball bearing outer ring extractor designed in this utility model involves pressing down the locking plate 8. When one end of the locking plate 8 is pressed down, it rotates around the connecting shaft 7 of the annular frame 3. The other end of the locking plate 8 then lifts up, simultaneously compressing the spring 9 between the annular frame 3 and the locking plate. The other end of the locking plate 8 drives the locking member 10 at the port, causing the meshing teeth 11 of the locking member 10 and the tensioning screw 4 to move away from the tensioning screw 4. The tensioning screw 4 then becomes movable. Pulling the tensioning screw 4 then causes the spherical member 5 at the end of the screw to abut against the inner ring wall of the bearing outer frame. Once the balls of the two screws are removed... After the shaped parts 5 are pressed against the inner ring wall of the bearing frame, the pressing snap-fit ​​lever 8 is released. The spring 9 rebounds and presses against the other end of the snap-fit ​​lever 8 to reset. The snap-fit ​​part 10 at the other end of the snap-fit ​​lever 8 will be sleeved on the body of the screw. The meshing teeth 11 of the snap-fit ​​part 10 will be embedded in the external thread of the screw, so that the screw is fixed in this position. The ball part 5 at the end of the screw will continue to press against the groove of the outer ring of the bearing. Finally, the sliding hammer 12 slides back and forth on the body of the main rod 1. The centrifugal force generated by the sliding hammer 12 will be transmitted to the screw at both ends of the three-way pipe 2 connected to the port, so that the screw pulls the outer ring of the bearing. The outer ring is removed under the inertial force, which is simple and quick.

[0042] 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 may 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 deep groove ball bearing outer ring extractor, characterized in that, include: Main rod (1); Three-way pipe (2), the end of the main rod (1) is connected to the middle opening of the three-way pipe (2); ring frame (3), the ring frame (3) is fixedly sleeved on the openings at both ends of the three-way pipe (2); Tensioning screws (4), two tensioning screws (4) are provided, and the two tensioning screws (4) are respectively inserted into the pipe openings at both ends of the three-way pipe (2); Spherical component (5), each end of the tensioning screw (4) is provided with the spherical component (5); pressing groove (6), the pressing groove (6) is opened on the side wheel surface of the annular frame (3); A rotating shaft (7) is movably mounted on the side wall of the pressing groove (6); A snap-fit ​​lever (8) is sleeved in the middle of the rotating shaft (7). The snap-fit ​​lever (8) includes a pressing end (81) at one end and a locking end (82) at the other end. The pressing end (81) is higher than the locking end (82).

2. The deep groove ball bearing outer ring extractor according to claim 1, characterized in that, Also includes: Spring (9), the spring (9) is disposed between the inner wall of the annular frame (3) and the locking end (82); A snap-fit ​​connector (10) is fixed to the locking end (82) and is sleeved on the body of the tensioning screw (4); Engaging teeth (11), the engaging teeth (11) are disposed at the sleeve end of the snap-fit ​​member (10); sliding hammer (12), the sliding hammer (12) is slidably sleeved on the shaft of the main rod (1).

3. The deep groove ball bearing outer ring extractor according to claim 2, characterized in that, The two tensioning screws (4) are symmetrical about the cross-section of the main rod (1).

4. The deep groove ball bearing outer ring extractor according to claim 1, characterized in that, The diameter of the spherical part (5) is larger than the diameter of the screw.

5. A deep groove ball bearing outer ring extractor according to claim 2, characterized in that, The meshing teeth (11) mesh with the tensioning screw (4).

6. A deep groove ball bearing outer ring extractor according to claim 1, characterized in that, The pivot (7) causes the locking plate (8) to form a lever mechanism.

7. A deep groove ball bearing outer ring extractor according to claim 2, characterized in that, The snap-fit ​​component (10) is a U-shaped snap-fit.

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