Stop ring press-fitting tool for bearing with stop groove
By coordinating the operation of the positioning cylinder, the insertion block, and the longitudinal drive mechanism, the problems of inaccurate positioning and safety during the press-fitting of the retaining ring are solved, thus achieving efficient and safe press-fitting of the bearing retaining ring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU HAILIN ZHONGKE SCI & TECH
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing retaining ring press-fitting fixtures for bearings with retaining grooves are prone to misalignment during press-fitting due to the dimensional error of the bearing inner ring, which makes it difficult for the tapered body to make perfect contact and positioning. This affects efficiency and quality, and the impact force of the tapered body falling after press-fitting may damage the bearing, reducing safety.
The coordinated operation of the positioning cylinder, plug-in block, longitudinal drive mechanism, wedge block and plug-in transverse movement mechanism achieves stable positioning of the bearing and stable connection of the cone. The cooperation between the positioning cone, positioning cylinder and plug-in block ensures the accuracy and safety of the press-fitting process.
It improves pressing efficiency and quality, avoids damage to bearings from the impact of the falling conical body, and enhances the overall safety of the pressing operation.
Smart Images
Figure CN224274001U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of press-fitting tooling technology, specifically a press-fitting tooling for a retaining ring with a retaining groove bearing. Background Technology
[0002] The retaining ring is installed to prevent the bearing from moving around in the bearing housing during operation, thus playing a fixing role. The retaining ring is installed on the outer ring, and there is usually a retaining groove on the outer ring of the bearing for the retaining ring to fit and limit the movement.
[0003] Currently, in the press-fitting of retaining rings for bearings with retaining grooves, the traditional method relies on an independent cylindrical positioning structure to place the bearing and thus achieve its positioning. Then, a tapered object is placed on the bearing, with its lower end embedded in the bearing's inner ring. Subsequently, the retaining ring is press-fitted by the downward pressing action of the press sleeve. However, in this process, due to the inevitable dimensional errors in the bearing's inner ring during manufacturing, the outer wall of the tapered object often cannot achieve perfect contact and positioning with the bearing's inner ring. Therefore, the tapered object is prone to misalignment during the pressing process, which not only affects the efficiency of the press-fitting but may also lead to a decrease in the quality of the press-fitting. Secondly, after the press-fitting operation is completed, when the press sleeve rises, it may accidentally lift the tapered object along with it. Subsequently, due to the weight of the tapered object itself, it may fall, and the impact force during this process may damage the bearing, thus reducing the safety of the entire press-fitting operation. Utility Model Content
[0004] The purpose of this utility model is to provide a retaining ring press-fitting tool for bearings with retaining grooves, which solves the problems of existing retaining ring press-fitting tooling for bearings with retaining grooves, where the conical body is difficult to make perfect contact and positioning due to the dimensional error of the bearing inner ring, and is prone to misalignment during press-fitting, affecting efficiency and quality; and after press-fitting, the rising of the press sleeve may drive the conical body, and its falling impact force may easily damage the bearing, reducing the safety of operation.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a retaining ring press-fitting fixture with a retaining groove bearing, comprising a press sleeve, a positioning cone located below the press sleeve, a positioning plate located below the positioning cone, a positioning cylinder located on the upper side of the positioning plate, an insertion block located on the upper side of the positioning cylinder, a cavity located on the lower side of the insertion block and communicating with the positioning cylinder, a longitudinal drive mechanism located on the positioning plate, a wedge block connected to the longitudinal drive mechanism and located in the cavity, and two mirror-arranged wedge blocks that slide and fit on one side of the cavity. A transverse insertion mechanism is provided, wherein the two ends of the wedge block are respectively slidably engaged with the opposite sides of the two transverse insertion mechanisms. The wedge block can move along the longitudinal direction within the cavity via a longitudinal drive mechanism. The two transverse insertion mechanisms can move towards or away from each other along the horizontal direction within the cavity via the wedge block. The transverse insertion mechanism can pass through the insertion block and extend into the cone block. The positioning cone includes a cone block and a positioning slot located on the lower side of the cone block for insertion of the insertion block. The transverse insertion mechanism acts on the cone block.
[0006] Furthermore, the inner wall of the positioning slot is provided with insertion holes on both sides; the two sides of the insertion block are provided with openings communicating with the cavity; the two ends of the wedge block are provided with first sliders; the insertion transverse movement mechanism includes a connecting block that slides with the inner wall of the cavity, a positioning pin connected to one side of the connecting block, an inclined block provided on the lower side of the connecting block, and an inclined slide groove provided on one side of the inclined block. The first slider slides with the inclined slide groove, and one end of the positioning pin extends through the opening into the interior of the insertion hole.
[0007] Furthermore, the cavity has a first sliding groove and a second sliding groove arranged sequentially from top to bottom on one side. The first sliding groove has two second sliding blocks that slide in conjunction with it, and the second sliding groove has two third sliding blocks that slide in conjunction with it. The second sliding blocks are connected to one side of the connecting block, and the third sliding blocks are connected to one side of the inclined block.
[0008] Furthermore, the lower side of the positioning plate is provided with a groove; the longitudinal drive mechanism includes an electric push rod disposed in the groove, a connecting rod connected to one end of the electric push rod and located in the positioning cylinder and cavity, and one end of the connecting rod is connected to the lower side of the wedge block.
[0009] Furthermore, a guide post is connected to the upper side of the cone block, and a guide cylinder is connected to the upper side of the pressure sleeve. The guide post and the inner wall of the guide cylinder are in sliding fit.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] In the bearing retaining ring press-fitting process of this utility model, the positioning of the bearing to be press-fitted and the stable connection of the cone block are achieved through the coordinated operation of the positioning cylinder, the insertion block, the longitudinal drive mechanism, the wedge block and the insertion transverse movement mechanism. During the press-fitting of the retaining ring, the cooperation mechanism between the positioning cone and the positioning cylinder and the insertion block is used, which not only ensures the positioning of the bearing, but also enhances the stability of the positioning cone connection. In this way, the tooling improves the efficiency and quality of press-fitting, and avoids a common problem in traditional processes: that is, after the press-fitting operation is completed, when the press sleeve rises, it may accidentally lift the positioning cone along with it, and then fall down due to its own weight. The impact force in this process may damage the bearing, thus improving the safety of the overall press-fitting operation. Attached Figure Description
[0012] Figure 1 This is a cross-sectional schematic diagram of the retaining ring press-fitting tooling for the bearing with retaining groove of this utility model.
[0013] Figure 2 For the present utility model Figure 1 Enlarged diagram of point A in the middle.
[0014] In the diagram: 1. Positioning plate; 2. Positioning cone; 3. Pressure sleeve; 4. Guide post; 5. Guide cylinder; 6. Stop ring; 7. Conical block; 8. Positioning slot; 9. Insertion hole; 10. Groove; 11. Positioning cylinder; 12. Insertion block; 13. Cavity; 14. Opening; 15. Electric push rod; 16. Connecting rod; 17. Wedge block; 18. First slider; 19. Inclined block; 20. Inclined groove; 21. Connecting block; 22. Positioning insert; 23. First groove; 24. Second slider; 25. Second groove; 26. Third slider; 27. Bearing. Detailed Implementation
[0015] Please see Figure 1-2A retaining ring press-fitting fixture with a retaining groove bearing includes a pressure sleeve 3, a positioning cone 2 located below the pressure sleeve 3, a positioning plate 1 located below the positioning cone 2, a positioning cylinder 11 located on the upper side of the positioning plate 1, an insertion block 12 located on the upper side of the positioning cylinder 11, a cavity 13 located on the lower side of the insertion block 12 and communicating with the positioning cylinder 11, a longitudinal drive mechanism located on the positioning plate 1, a wedge block 17 connected to the longitudinal drive mechanism and located in the cavity 13, and two insertion transverse movement mechanisms slidably fitted on one side of the cavity 13 and arranged in a mirror image. The two ends of the wedge block 17 are respectively connected to the two insertion transverse movement mechanisms. The mechanisms slide on opposite sides, and the wedge block 17 can move longitudinally within the cavity 13 via the longitudinal drive mechanism. Two insertion transverse mechanisms can move towards or away from each other horizontally within the cavity 13 via the wedge block 17, and the insertion transverse mechanisms can pass through the insertion block 12 and extend into the cone block 7. The positioning cone 2 includes the cone block 7 and a positioning slot 8 located on the lower side of the cone block 7 for the insertion block 12 to be inserted into. The insertion transverse mechanism acts on the cone block 7. During operation, the pressure sleeve 3 is installed with the pneumatic compressor, and the bearing 27 with a stop groove is fitted onto the positioning cylinder 11 and the insertion block 12. Then, the cone... Block 7 is placed on bearing 27, with the lower end of the conical block 7 inserted into the inner ring of bearing 27. The insertion block 12 is then inserted into the positioning slot 8 of the conical block 7, achieving initial positioning. Next, the longitudinal drive mechanism is controlled to raise the wedge block 17. Simultaneously, the two insertion transverse movement mechanisms, under the sliding engagement with the wedge block 17, move in opposite directions until they pass through the insertion block 12 and are inserted into the conical block 7, thus connecting and fixing the insertion block 12 to the conical block 7. The connection between the conical block 7 and the insertion block 12 presses and fixes the bearing 27, completing the positioning process. The stop ring 6 is installed on the cone block 7. The pneumatic compressor drives the pressure sleeve 3 downward, pressing the stop ring 6 into the stop groove 6 on the bearing 27. Thus, during the process of pressing the stop ring 6, the positioning cone 2, positioning cylinder 11, and plug block 12 are used to achieve the positioning operation of the bearing 27. At the same time, the stable connection of the positioning cone 2 is ensured, which improves the efficiency and quality of pressing. It avoids the risk that the positioning cone 2 may be pulled upward and then fall down when the pressure sleeve 3 rises after pressing, thereby causing potential damage to the bearing 27, and improves the safety of the overall pressing operation.
[0016] The positioning slot 8 has insertion holes 9 on both sides of its inner wall; the insertion block 12 has openings 14 on both sides that communicate with the cavity 13; the wedge block 17 has first sliders 18 at both ends; the insertion transverse movement mechanism includes a connecting block 21 that slides with the inner wall of the cavity 13, a positioning pin 22 connected to one side of the connecting block 21, an inclined block 19 connected to the lower side of the connecting block 21, and an inclined groove 20 on one side of the inclined block 19. The first slider 18 slides with the inclined groove 20. The positioning pin 22... One end of 2 extends through the opening 14 into the interior of the insertion hole 9; when the insertion transverse mechanism performs the insertion positioning of the cone block 7, the first slider 18 connected to both ends of the wedge block 17 slides along the inclined slide groove 20. This sliding action drives the two inclined blocks 19 to move away from each other. At the same time, the connecting block 21 connected to the inclined block 19 also moves synchronously, causing the positioning pin 22 to pass through the opening 14 and be inserted into the insertion hole 9, thereby realizing the connection and fixation between the insertion block 12 and the cone block 7.
[0017] The cavity 13 has a first sliding groove 23 and a second sliding groove 25 arranged sequentially from top to bottom on one side. The first sliding groove 23 has two second sliders 24 that slide in and out, and the second sliding groove 25 has two third sliders 26 that slide in and out. The second sliders 24 are connected to one side of the connecting block 21, and the third sliders 26 are connected to one side of the inclined block 19. When the inclined block 19 and the connecting block 21 move horizontally, the second sliders 24 slide horizontally in the first sliding groove 23, and the third sliders 26 slide horizontally in the second sliding groove 25, thereby limiting and stabilizing the horizontal movement of the inclined block 19 and the connecting block 21.
[0018] The lower side of the positioning plate 1 is provided with a groove 10; the longitudinal drive mechanism includes an electric push rod 15 disposed in the groove 10 and a connecting rod 16 connected to one end of the electric push rod 15 and located in the positioning cylinder 11 and the cavity 13. One end of the connecting rod 16 is connected to the lower side of the wedge block 17. When the longitudinal drive mechanism is running, the controller controls the electric push rod 15 to start, and the electric push rod 15 drives the connecting rod 16 to rise, which in turn drives the wedge block 17 to rise.
[0019] The upper side of the cone block 7 is connected to the guide post 4, and the upper side of the pressure sleeve 3 is connected to the guide cylinder 5. The guide post 4 and the inner wall of the guide cylinder 5 slide together. During the pressing process of the pressure sleeve 3, the guide post 4 connected to the cone block 7 is inserted into the guide cylinder 5 of the pressure sleeve 3 to ensure the concentricity of the upper and lower cone blocks 7 and the pressure sleeve 3, and to prevent the stop ring 6 from being skewed when it is pressed.
[0020] Working principle: During operation, the pressure sleeve 3 is installed with the pneumatic compressor. The bearing 27 with the stop groove is fitted onto the positioning cylinder 11 and the insertion block 12. Then, the conical block 7 is placed on the bearing 27, with the lower end of the conical block 7 inserted into the inner ring of the bearing 27. The insertion block 12 is inserted into the positioning slot 8 of the conical block 7 to achieve initial positioning. Then, the controller controls the electric push rod 15 to start. The electric push rod 15 drives the connecting rod 16 to rise, and simultaneously drives the wedge block 17 to rise. While the wedge block 17 rises, the first slider 18 connected to both ends of the wedge block 17 slides along the inclined slide groove 20. This sliding action drives the two inclined blocks 19 to move away from each other. The third slider 26 slides horizontally in the second slide groove 25. At the same time, the connecting block 21 connected to the inclined block 19 also moves synchronously. The second slider 24 slides horizontally in the first slide groove 23. The movement causes the positioning pin 22 to pass through the opening 14 and insert into the insertion hole 9, thereby connecting and fixing the insertion block 12 and the cone block 7. After positioning, the stop ring 6 is installed on the cone block 7. The pneumatic compressor drives the pressure sleeve 3 downward, and the guide pin 4 connected to the cone block 7 is inserted into the guide cylinder 5 of the pressure sleeve 3. Under the pressure and guidance of the cone block 7, the pressure sleeve 3 presses the stop ring 6 into the stop groove. Thus, in the process of pressing the stop ring 6, the positioning cone 2, the positioning cylinder 11, and the insertion block 12 are used to achieve the positioning operation of the bearing 27, while ensuring the stable connection of the positioning cone 2. This improves the efficiency and quality of pressing, and avoids the risk that the positioning cone 2 may be pulled upward and then fall down when the pressure sleeve 3 rises after pressing, thereby causing potential damage to the bearing 27. This improves the safety of the overall pressing operation.
[0021] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A retaining ring press-fitting fixture with a retaining groove bearing, comprising a pressure sleeve (3), a positioning cone (2) located below the pressure sleeve (3), and a positioning plate (1) located below the positioning cone (2), characterized in that, It also includes a positioning cylinder (11) on the upper side of the positioning plate (1), a plug-in block (12) on the upper side of the positioning cylinder (11), a cavity (13) on the lower side of the plug-in block (12) and communicating with the positioning cylinder (11), a longitudinal drive mechanism on the positioning plate (1), a wedge block (17) connected to the longitudinal drive mechanism and located in the cavity (13), and two plug-in transverse movement mechanisms that are slidably fitted on one side inside the cavity (13) and arranged in a mirror image. The two ends of the wedge block (17) are respectively slidably fitted on the opposite side of the two plug-in transverse movement mechanisms. The wedge block (17) can move along the longitudinal direction in the cavity (13) through the longitudinal drive mechanism. The two insertion transverse movement mechanisms can move towards each other or away from each other in the horizontal direction in the cavity (13) through the wedge block (17). The insertion transverse movement mechanism can pass through the insertion block (12) and extend into the cone block (7). The positioning cone (2) includes the cone block (7) and a positioning slot (8) provided on the lower side of the cone block (7) for the insertion block (12) to be inserted. The insertion transverse movement mechanism acts on the cone block (7).
2. The retaining ring press-fitting fixture for a bearing with a retaining groove as described in claim 1, characterized in that, The positioning slot (8) has insertion holes (9) on both sides of its inner wall; the plug block (12) has openings (14) on both sides that communicate with the cavity (13); the wedge block (17) has first sliders (18) at both ends; the plug transverse mechanism includes a connecting block (21) that slides with the inner wall of the cavity (13), a positioning plug (22) connected to one side of the connecting block (21), an inclined block (19) on the lower side of the connecting block (21), and an inclined groove (20) on one side of the inclined block (19). The first slider (18) slides with the inclined groove (20), and one end of the positioning plug (22) extends through the opening (14) into the interior of the insertion hole (9).
3. The retaining ring press-fitting fixture for a bearing with a retaining groove as described in claim 2, characterized in that, The cavity (13) has a first sliding groove (23) and a second sliding groove (25) arranged sequentially from top to bottom on one side. The first sliding groove (23) has two second sliding blocks (24) that slide together inside, and the second sliding groove (25) has two third sliding blocks (26) that slide together inside. The second sliding blocks (24) are connected to one side of the connecting block (21), and the third sliding blocks (26) are connected to one side of the inclined block (19).
4. The retaining ring press-fitting fixture for a bearing with a retaining groove as described in claim 1, characterized in that, The lower side of the positioning plate (1) is provided with a groove (10); the longitudinal drive mechanism includes an electric push rod (15) provided in the groove (10) and a connecting rod (16) connected to one end of the electric push rod (15) and located in the positioning cylinder (11) and cavity (13), and one end of the connecting rod (16) is connected to the lower side of the wedge block (17).
5. The retaining ring press-fitting fixture for a bearing with a retaining groove as described in claim 1, characterized in that, The upper side of the cone block (7) is connected to a guide post (4), and the upper side of the pressure sleeve (3) is connected to a guide cylinder (5). The guide post (4) and the inner wall of the guide cylinder (5) are in sliding fit.