Split flange quick dismounting mandrel sleeve assembly
By employing a separate patented application: This patent can be applied to the field of mechanical devices, specifically relating to the connection between motors and equipment, particularly the connection between motors and equipment, particularly the connection between motors and output devices, particularly the fit between spindles and bushings, and particularly the fixing and disassembly of flanges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING YONGMING ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-06-26
AI Technical Summary
The traditional fixed welding of the mandrel and flange is difficult to disassemble in narrow spaces, resulting in inconvenience for inspection and maintenance and wasting time.
The design adopts a split flange, which is fixed by the spline head and tapered sleeve with bolts, combined with the outer spherical bearing and guide protrusion ring, to achieve quick assembly and disassembly of the mandrel and flange.
It improves the ease of installation and disassembly of the mandrel and flange, reduces space requirements, enhances disassembly efficiency and connection strength, and ensures transmission stability.
Smart Images
Figure CN224414170U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mandrel and bushing technology, specifically a split flange quick-release mandrel and bushing assembly. Background Technology
[0002] With industrial development and technological advancements, mechanical devices are also being upgraded. During the use of machinery, it is inevitable to transmit the output power of the motor to the machine. This requires connecting the motor to the output device. In fields such as mechanical transmission and equipment connection, the combination of spindle and bushing is a common structure for positioning components, transmitting torque, or supporting loads. Flanges are often used as connecting parts to fix the assembly to the equipment frame, housing, etc., to ensure the overall stability of the assembly. However, in the use of traditional spindle and bushing assemblies and flanges, the spindle and flange are often fixedly welded. In some narrow spaces, there is often not enough space to disassemble the spindle and flange, making it difficult to remove the spindle and requiring the disassembly of other parts to free up a lot of space. This makes maintenance and repair very inconvenient and wastes a lot of time. Utility Model Content
[0003] The purpose of this utility model is to provide a split flange quick-disassembly mandrel and bushing assembly to solve the problem mentioned in the background art that the disassembly of the mandrel and flange is very time-consuming due to insufficient space.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a split-type flange quick-release mandrel and bushing assembly, comprising a mandrel body and a first flange block. A first end cap is fitted onto the outer surface of one end of the mandrel body, and a spline head is fixedly installed at the end of the mandrel body away from the first end cap. An outer spherical bearing is installed through the outer surface of the mandrel body, and the outer spherical bearing and the mandrel body are interference-fitted. The mandrel body and the outer spherical bearing are fixed together by a set screw. The first flange block is located at the end near the spline head. A second flange block is placed against the outer surface of the first flange block, and bolt groups are installed through both ends of the second flange block and the first flange block. The outer surfaces of the bolt groups are respectively against the outer surfaces of the first flange block and the second flange block, and the first flange block and the second flange block are penetrated by the spline head. A pressing and fastening mechanism is provided between the spline head and the first flange block and the second flange block.
[0005] Preferably, the compression fastening mechanism includes: a conical sleeve, the conical sleeve being a semi-circular cone, and two conical sleeves fitting against the outer surface of a spline head, the spline head being a conical design, the outer surface of the conical sleeve fitting against the outer surface of a first flange block and a second flange block, the outer surfaces of the first flange block and the second flange block respectively being fixedly installed with protruding semi-rings, the outer surfaces of the protruding semi-rings fitting against each other, and the protruding semi-rings being inserted into another flange.
[0006] By adopting the above technical solution, through the tapered design of the spline head and the snap-fit of the tapered sleeve, after the first flange block and the second flange block are fixed by the bolt group, they can be connected and fixed with another flange. As the first flange block and the second flange block are tightened and fixed, the spline head and the tapered sleeve can be pressed together. When the first flange block and the second flange block are fixed to the flange, the mandrel body can be fixed at the same time. Through the insertion of the protruding half ring, the connection strength of the first flange block and the second flange block is further improved.
[0007] Preferably, a second end cap is fitted onto the outer surface of the outer spherical bearing, and fixing bolts are respectively installed through the outer surfaces of the second end cap and the first end cap. The fixing bolts are threadedly connected to the first end cap and the second end cap, and the outer surface of the first end cap is fitted onto the outer surface of the outer spherical bearing.
[0008] By adopting the above technical solution and using the outer spherical bearing, the spindle body can be loosened and rotated freely after the first flange block and the second flange block are removed.
[0009] Preferably, the outer surfaces of the first end cap and the second end cap are respectively fixedly provided with guide protrusion rings, and the side of the guide protrusion ring away from the second end cap is designed with a chamfer. The first end cap and the second end cap are connected to the machine, and the guide protrusion ring is inserted into the outer surface of the machine.
[0010] By using the above technical solution, after the first end cover and the second end cover are fixed to the surface of the machine by the use of the guide protrusion ring, the guide protrusion ring can be inserted into the surface of the machine. The insertion of the guide protrusion ring further improves the stability and firmness of the first end cover and the second end cover.
[0011] Preferably, an outer retaining spring is fitted onto the outer surface of the mandrel body, and the outer surface of the outer retaining spring is in contact with the outer surface of the outer spherical bearing. The outer retaining spring is located inside the first end cover and the second end cover.
[0012] By adopting the above technical solution, the outer snap ring is installed on the outer surface of the spindle body, which can facilitate the positioning of the outer spherical bearing and improve the accuracy of the installation of the outer spherical bearing.
[0013] Preferably, the outer surface of the spline head is uniformly provided with grooves, and the grooves engage with the tapered sleeve. The outer surface of the tapered sleeve is uniformly provided with limiting grooves. The outer surfaces of the first flange block and the second flange block are uniformly provided with fitting blocks, and the fitting blocks engage with the limiting grooves.
[0014] By adopting the above technical solution, through the engagement of the groove and the tapered sleeve, and the engagement of the limiting groove on the outer surface of the tapered sleeve and the fitting block, when the mandrel body drives the first flange block and the second flange block to rotate, the first flange block and the second flange block can be firmly fixed to the mandrel body, so that the spline head, the first flange block and the second flange block will not slip during rotation.
[0015] Preferably, the first flange block has plug-in rings at both ends, and the second flange block has another plug-in ring on the outer surface of both ends. The plug-in rings are concentrically designed, and the first flange block and the second flange block are engaged. A screw is installed through the outer surface of the plug-in ring.
[0016] By adopting the above technical solution, after the first flange block and the second flange block are fixed together by the use of the plug ring, the screw can further lock the first flange block and the second flange block by passing through the plug ring, reducing the probability of the first flange block and the second flange block being damaged or broken during use.
[0017] Compared with the prior art, the beneficial effects of this utility model are: the split flange quick-release mandrel and bushing assembly:
[0018] 1. By inserting bolts into both ends of the first and second flange blocks and tightening them, the first and second flange blocks can be fixedly installed on the outer surface of the mandrel body. Then, the tapered sleeves are snapped into the outer surface of the spline head. Subsequently, by installing and fixing the first and second flange blocks to the other flange, the spline head can contact the flange, and the mandrel body, the first flange block, and the second flange block can be firmly fixed together without welding. This greatly reduces the space required for operation and greatly improves the convenience of installation and disassembly.
[0019] 2. By engaging the first flange block and the second flange block, the insertion rings at both ends of the first flange block and the second flange block can overlap each other. Then, the screw is inserted into the mounting holes of the first flange block and the second flange block and into the insertion ring, and fixed to the flange. This allows the protruding half-ring to be inserted into the flange. With the screw inserted into the insertion ring, the groove and the tapered sleeve engage, and the limiting groove and the fitting block engage, the first flange block and the second flange block can improve the firmness after connection through the protruding half-ring and the insertion ring, and prevent slippage during power transmission.
[0020] 3. The first end cover and the second end cover can be fixedly connected together by fixing bolts. With the use of the external snap ring, the outer spherical bearing can be quickly and accurately positioned when it is fixed on the outer surface of the spindle body. When the first end cover and the second end cover are fixed on the surface of the machine, the guide protrusion ring will be inserted into the surface of the machine, which improves the firmness of the first end cover and the second end cover after installation, and improves the convenience of installing the first end cover and the second end cover on the outer surface of the outer spherical bearing and the spindle body. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the mandrel body and the second end cap of this utility model;
[0022] Figure 2 This is an exploded three-dimensional structural diagram of the first end cap and the second end cap of this utility model;
[0023] Figure 3 This is an exploded three-dimensional structural diagram of the outer spherical bearing and outer snap ring of this utility model;
[0024] Figure 4 This is a cross-sectional perspective view of the first flange block and the second flange block of this utility model.
[0025] Figure 5 This is an exploded three-dimensional structural diagram of the spline head and cone sleeve of this utility model;
[0026] Figure 6 This is a cross-sectional three-dimensional structural diagram of the spline head and the first flange block of this utility model.
[0027] In the diagram: 1. Mandrel body; 2. First end cap; 3. Second end cap; 4. Fixing bolt; 5. Guide protruding ring; 6. Outer spherical bearing; 7. Outer snap ring; 8. Spline head; 9. Groove; 10. Tapered sleeve; 11. Limiting groove; 12. First flange block; 13. Second flange block; 14. Insert ring; 15. Bolt assembly; 16. Fitting block; 17. Protruding half ring. Detailed Implementation
[0028] 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.
[0029] Please see Figure 1-6This utility model provides a technical solution: a split-type flange quick-release mandrel and bushing assembly, including a mandrel body 1 and a first flange block 12. A first end cap 2 is engaged and installed on the outer surface of one end of the mandrel body 1. A spline head 8 is fixedly installed on the end of the mandrel body 1 away from the first end cap 2. An outer spherical bearing 6 is installed through the outer surface of the mandrel body 1, and the outer spherical bearing 6 and the mandrel body 1 are interference-fitted. The mandrel body 1 and the outer spherical bearing 6 are fixed by a set screw. The first flange block 12 is located at the end close to the spline head 8, and the outer surface of the first flange block 12 is in contact with... A second flange block 13 is placed therein, and bolt groups 15 are installed through both ends of the second flange block 13 and the first flange block 12. The outer surfaces of the bolt groups 15 are respectively attached to the outer surfaces of the first flange block 12 and the second flange block 13. The first flange block 12 and the second flange block 13 are passed through by a spline head 8. A compression fastening mechanism is provided between the spline head 8 and the first flange block 12 and the second flange block 13. The compression fastening mechanism includes a conical sleeve 10, which is a semi-circular cone. The two conical sleeves 10 are attached to the outer surfaces of the spline head 8. The spline head 8 is a conical design.
[0030] First, during installation, simply pre-assemble the outer spherical bearing 6 with the mandrel 1, insert the mandrel 1 into the machine through the hole, leaving one end of the mandrel 1 exposed outside the machine. Then, fasten the tapered sleeve 10 onto the outer surface of the spline head 8. Next, fasten the first flange block 12 and the second flange block 13 onto the outer surface of the mandrel 1. Finally, connect and fix the first flange block 12 and the second flange block 13 together using the bolt group 15, ensuring that the insertion rings 14 can interlock and align with each other, thus pushing the first flange block 12 and the second flange block 13 together. The two flange blocks 13 contact the tapered sleeve 10, and then the first flange block 12 and the second flange block 13 are connected to the flange. Through the connection and compression of the first flange block 12, the second flange block 13 and the flange, the spline head 8 and the tapered sleeve 10 can be firmly connected and fixed together by the compression of the first flange block 12 and the second flange block 13, which improves the convenience of installing the mandrel and bushing assembly. At the same time, it can also be disassembled in reverse order when damaged, reducing the inconvenience caused by insufficient operating space and greatly improving the installation and disassembly efficiency of the mandrel and bushing assembly.
[0031] The outer surface of the spline head 8 is uniformly provided with grooves 9, which engage with the tapered sleeve 10. The outer surface of the tapered sleeve 10 is uniformly provided with limiting grooves 11. The outer surfaces of the first flange block 12 and the second flange block 13 are uniformly provided with fitting blocks 16, which engage with the limiting grooves 11. The two ends of the first flange block 12 are provided with insertion rings 14, and the outer surfaces of the two ends of the second flange block 13 are provided with another insertion ring 14. The insertion rings 14 are concentrically designed. The first flange block 12 and the second flange block 13 engage with each other. A screw is installed through the outer surface of the insertion ring 14. The outer surface of the tapered sleeve 10 is in contact with the outer surfaces of the first flange block 12 and the second flange block 13. The outer surfaces of the first flange block 12 and the second flange block 13 are respectively fixedly installed with protruding half rings 17, which are in contact with each other. The protruding half rings 17 are also inserted into another flange.
[0032] Next, by moving the first flange block 12 and the second flange block 13 to contact the tapered sleeve 10, the fitting block 16 can engage with the limiting groove 11, and the groove 9 can engage with the tapered sleeve 10. Then, the bolts can be passed through the first flange block 12, the second flange block 13 and the plug ring 14, so that the first flange block 12 and the second flange block 13 can be connected to another flange, and the protruding half ring 17 can be inserted into the flange and the bolts can be inserted into the plug ring 14 to improve the connection strength between the first flange block 12 and the second flange block 13 and reduce the chance of slippage and loss of transmission during use.
[0033] A second end cap 3 is fitted onto the outer surface of the outer spherical bearing 6, and fixing bolts 4 are respectively installed through the outer surfaces of the second end cap 3 and the first end cap 2. The fixing bolts 4 are threadedly connected to the first end cap 2 and the second end cap 3, respectively. The outer surface of the first end cap 2 is fitted onto the outer surface of the outer spherical bearing 6. An outer retaining spring 7 is fitted onto the outer surface of the spindle body 1, and the outer surface of the outer retaining spring 7 is fitted onto the outer surface of the outer spherical bearing 6. The outer retaining spring 7 is located inside the first end cap 2 and the second end cap 3. Guide protrusion rings 5 are respectively fixedly provided on the outer surfaces of the first end cap 2 and the second end cap 3, and the side of the guide protrusion ring 5 away from the second end cap 3 is chamfered. The first end cap 2 and the second end cap 3 are connected to the machine, and the guide protrusion ring 5 is inserted into the outer surface of the machine.
[0034] The outer retaining ring 7 can be inserted into the outer surface of the spindle body 1, and the outer spherical bearing 6 can be moved to quickly position the outer spherical bearing 6 on the outer surface of the spindle body 1. It can then be fixed for a second time by the set screw of the outer spherical bearing 6. Then, the first end cover 2 and the second end cover 3 can be fastened onto the outer surface of the outer spherical bearing 6, and the first end cover 2 and the second end cover 3 can be fixedly connected together by the fixing bolt 4. Then, the first end cover 2 and the second end cover 3 can be connected to the surface of the machine, and the guide protrusion ring 5 can be inserted into the surface of the machine, further improving the connection strength between the first end cover 2 and the second end cover 3. It can also be disassembled in reverse order, reducing the probability of obstruction caused by the first flange block 12 and the second flange block 13, and further improving the convenience of spindle bushing installation and disassembly.
[0035] Working principle: During installation, the outer spherical bearing 6 must first be installed onto the outer surface of the mandrel body 1. Then, the mandrel body 1 is inserted into the machine through the mounting hole. Next, the tapered sleeve 10 is fastened onto the outer surface of the spline head 8, allowing the groove 9 to engage with the tapered sleeve 10. Then, the first flange block 12 and the second flange block 13 are fitted onto the outer surface of the mandrel body 1 and secured with bolts 15. The first flange block 12 and the second flange block 13 can then be pushed to engage with the tapered sleeve 10, allowing the limiting groove 11 to engage with the fitting block 16. Finally, the first flange block 12 and the second flange block 13 are connected to the flange... The spline head 8, tapered sleeve 10, first flange block 12, and second flange block 13 are connected and fixed together by the squeezing force when connected to the flange plate through the first flange block 12 and the second flange block 13. Then, the outer snap ring 7 can be snapped into the surface of the mandrel body 1 and the outer spherical bearing 6 can be moved to quickly limit the position. Then, the first end cover 2 and the second end cover 3 are fastened and installed on the outer surface of the outer spherical bearing 6 and fixed with the fixing bolts 4. Then, the first end cover 2 and the second end cover 3 are connected to the machine, which greatly improves the convenience of mandrel and bushing installation and disassembly, reduces the installation inconvenience caused by the small space, and greatly improves the efficiency of installation and disassembly.
[0036] 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 can 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 split-type flange quick-release mandrel and bushing assembly, comprising a mandrel body (1) and a first flange block (12), wherein a first end cap (2) is engaged and installed on the outer surface of one end of the mandrel body (1), and a spline head (8) is fixedly installed on the end of the mandrel body (1) away from the first end cap (2), characterized in that: An outer spherical bearing (6) is installed through the outer surface of the mandrel body (1), and the outer spherical bearing (6) and the mandrel body (1) are interference fit. The mandrel body (1) and the outer spherical bearing (6) are fixed by set screws. The first flange block (12) is located at one end close to the spline head (8). The second flange block (13) is placed against the outer surface of the first flange block (12), and bolt groups (15) are installed through both ends of the second flange block (13) and the first flange block (12). The outer surfaces of the bolt groups (15) are respectively against the outer surfaces of the first flange block (12) and the second flange block (13), and the first flange block (12) and the second flange block (13) are passed through by the spline head (8). A pressing and fastening mechanism is provided between the spline head (8) and the first flange block (12) and the second flange block (13).
2. The split-type flange quick-release mandrel and bushing assembly according to claim 1, characterized in that: The compression fastening mechanism includes: a cone sleeve (10), the cone sleeve (10) is a semi-circular cone, and two cone sleeves (10) are in contact with the outer surface of the spline head (8). The spline head (8) is a cone-shaped design. The outer surface of the cone sleeve (10) is in contact with the outer surface of the first flange block (12) and the second flange block (13). The outer surfaces of the first flange block (12) and the second flange block (13) are respectively fixedly installed with protruding half rings (17), and the outer surfaces of the protruding half rings (17) are in contact with each other. The protruding half rings (17) are also inserted into another flange.
3. The split-type flange quick-release mandrel and bushing assembly according to claim 1, characterized in that: The outer surface of the outer spherical bearing (6) is fitted with a second end cap (3), and the outer surfaces of the second end cap (3) and the first end cap (2) are respectively fitted with fixing bolts (4). The fixing bolts (4) are threadedly connected to the first end cap (2) and the second end cap (3), and the outer surface of the first end cap (2) is fitted with the outer surface of the outer spherical bearing (6).
4. The split-type flange quick-release mandrel and bushing assembly according to claim 1, characterized in that: The outer surfaces of the first end cap (2) and the second end cap (3) are respectively fixedly provided with guide protrusion rings (5), and the side of the guide protrusion ring (5) away from the second end cap (3) is designed with a chamfer. The first end cap (2) and the second end cap (3) are connected to the machine, and the guide protrusion ring (5) is inserted into the outer surface of the machine.
5. A split-type flange quick-release mandrel and bushing assembly according to claim 1, characterized in that: An outer retaining spring (7) is fitted onto the outer surface of the spindle body (1), and the outer surface of the outer retaining spring (7) is in contact with the outer surface of the outer spherical bearing (6). The outer retaining spring (7) is located inside the first end cover (2) and the second end cover (3).
6. A split-type flange quick-release mandrel and bushing assembly according to claim 2, characterized in that: The outer surface of the spline head (8) is uniformly provided with grooves (9), and the grooves (9) engage with the tapered sleeve (10). The outer surface of the tapered sleeve (10) is uniformly provided with limiting grooves (11). The outer surfaces of the first flange block (12) and the second flange block (13) are uniformly provided with fitting blocks (16), and the fitting blocks (16) engage with the limiting grooves (11).
7. A split-type flange quick-release mandrel and bushing assembly according to claim 1, characterized in that: The first flange block (12) has plug rings (14) at both ends, and the second flange block (13) has another plug ring (14) on the outer surface of both ends. The plug rings (14) are concentrically designed. The first flange block (12) and the second flange block (13) are engaged. A screw is installed through the outer surface of the plug ring (14).