A detachable split bearing housing structure

Abstract

This invention relates to the field of bearing housing technology, specifically to a detachable, split-type bearing housing structure, including a connecting seat; a lower bearing housing is mounted on the top of the outer wall of the connecting seat via a mounting seat; an upper bearing housing is mounted above the lower bearing housing; a pair of mounting plates and a connecting plate are respectively fixed to the outer walls of the lower and upper bearing housings; a fixed shell is slidably connected to the bottom of the outer walls of each pair of mounting plates; this invention, by rotating a first threaded rod, causes the fixed shell to move, squeezing and clamping the upper and lower bearing housings, preventing them from moving or shifting, thus locking or releasing the upper and lower bearing housings. This improves the efficiency of disassembly and assembly of the upper and lower bearing housings. Because the locking or releasing of the upper and lower bearing housings does not use a threaded structure, repeated disassembly and assembly will not cause thread wear, seizing, or preload attenuation, resulting in a longer service life and higher reliability.

Description

Technical Field

[0001] This invention relates to the field of bearing housing technology, specifically to a detachable, split-type bearing housing structure. Background Technology

[0002] Detachable split bearing housings are bearing support structures that enable convenient disassembly and maintenance through modular design. They consist of two separable bearing housing halves, namely the upper cover and the base, which are connected by bolts or other means. They have advantages such as convenient maintenance and adaptability, making them widely used in heavy-duty, high-frequency maintenance or space-constrained industrial scenarios.

[0003] In existing technologies, detachable split bearing housing structures generally use studs or bolts as fasteners. Disassembly and assembly typically require a special torque wrench to tighten multiple bolts in a specific sequence, extending equipment downtime during maintenance. This results in cumbersome and time-consuming disassembly and assembly operations. Furthermore, repeated disassembly and assembly of bolted connections can lead to thread wear, seizing, or preload reduction, making accurate preload control impossible. This inaccurate preload control results in actual preload being far lower than the design value, causing a gap to appear on the split surface under working load, leading to bearing housing failure. Excessive preload can cause serious equipment accidents such as slippage of bearing rolling elements, cage breakage, and bearing burnout. Excessive preload or seized threads can cause bolts to break or become unscrewable during disassembly, forcing maintenance personnel to use gas cutting or drilling to damage the bolts. This not only damages the threaded holes of the bearing housing but may also render the entire bearing housing unusable, increasing maintenance costs and downtime. Insufficient locking force can cause the bearing housing to shift relative to each other during vibration, resulting in severe vibration and noise, accelerating the failure of bearings and seals, and even causing safety accidents such as broken anchor bolts and flying rotating parts. Summary of the Invention

[0004] The purpose of this invention is to address the common problem that detachable split bearing housing structures typically use studs or bolts as fasteners. This necessitates the use of a dedicated torque wrench to tighten multiple bolts in a specific sequence during disassembly and assembly, extending equipment downtime during maintenance and resulting in cumbersome and time-consuming disassembly and assembly operations. Furthermore, repeated disassembly and assembly of bolted connections can lead to thread wear, seizing, or preload reduction, making accurate preload control impossible. This inaccurate preload control results in actual preload being far below the design value, causing gaps to appear on the split surface under working loads, leading to out-of-roundness of the bearing housing and causing bearing rolling defects. Serious equipment accidents such as slippage of moving parts, cage breakage, and bearing burnout are caused by excessive preload or seizing of threads, which can lead to bolt breakage or inability to be unscrewed during disassembly. This forces maintenance personnel to use gas cutting or drilling to damage the bolts, which can not only damage the threaded holes of the bearing housing but may also render the entire bearing housing unusable, increasing maintenance costs and downtime. Insufficient locking force can cause the bearing housing to loosen during vibration, resulting in relative displacement, violent vibration and noise, accelerating the failure of bearings and seals, and even causing safety accidents such as anchor bolt breakage and flying off of rotating parts. Therefore, a detachable split bearing housing structure is proposed.

[0005] The objective of this invention can be achieved through the following technical solutions: A detachable split bearing housing structure includes a connecting seat; a lower bearing housing is provided at the top of the outer wall of the connecting seat via a mounting seat; an upper bearing housing is provided above the lower bearing housing; a pair of mounting plates and a connecting plate are respectively fixedly connected to the outer walls of the lower bearing housing and the upper bearing housing; a fixed shell is slidably connected to the bottom of the outer walls of the pair of mounting plates; a first threaded rod is rotatably connected to the opposite ends of the outer walls of the pair of mounting plates, and the pair of first threaded rods are respectively threadedly connected to the pair of fixed shells.

[0006] In a preferred embodiment of the present invention, a square through groove is provided at the top of the outer wall of the mounting base; one end of the outer wall of the first threaded rod extends into the square through groove; the outer wall of the first threaded rod is provided with a spiral pattern; a locking block is slidably connected in the square through groove, and the locking block is threadedly connected to the spiral pattern; a connecting block is fixedly connected to the bottom of the outer wall of the connecting plate, and the connecting block and the locking block are engaged.

[0007] In a preferred embodiment of the present invention, a pair of sliding grooves are provided at the top of the outer wall of the mounting plate; a limiting post is provided in the sliding groove; a control mechanism is provided in the sliding groove, and the pair of limiting posts move through the control mechanism; a first groove is provided at the top of the outer wall of the connecting plate; a second groove is provided on one side of the outer wall of the fixing shell; the limiting post is engaged with the first groove and the second groove.

[0008] In a preferred embodiment of the present invention, the control mechanism includes a second threaded rod; the second threaded rod is rotatably connected to one side of the outer wall of the mounting plate; the second threaded rod is threadedly connected to a pair of limiting posts; the outer walls of the pair of limiting posts are respectively slidably connected to the inner walls of a pair of sliding through grooves; the first through groove is T-shaped; the second through groove is L-shaped.

[0009] In a preferred embodiment of the present invention, the outer walls of the limiting post are provided with third through grooves on opposite sides; an auxiliary block is fixed to one side of the inner wall of each pair of third through grooves by a spring; the inner walls of the first through groove are provided with auxiliary grooves on opposite sides, and each pair of auxiliary grooves is matched with a pair of auxiliary blocks; the outer walls of the auxiliary blocks are arc-shaped at one end.

[0010] In a preferred embodiment of the present invention, a placement groove is provided at the top of the outer wall of the connecting seat; the mounting seat is slidably placed in the placement groove; the mounting seat is fixedly connected to the lower bearing seat; a fixing plate is slidably connected to the inner side wall of the connecting seat; a fixing groove is provided on one side of the outer wall of the mounting seat, and the fixing groove fits with the fixing plate; a third threaded rod is rotatably connected to one side of the outer wall of the connecting seat, and the third threaded rod is threadedly connected to the fixing plate.

[0011] In a preferred embodiment of the present invention, a pair of first bolts are threaded to the top of the outer wall of the connecting plate, and the bottom of the outer wall of the pair of first bolts penetrates the connecting plate; a pair of bolt grooves are provided at the top of the outer wall of the mounting plate; the pair of first bolts respectively engage with the pair of bolt grooves.

[0012] In a preferred embodiment of the present invention, a pair of insert plates are fixedly connected to the top of the outer wall of the fixed shell; a circular block is rotatably connected to the top of the outer wall of each pair of first bolts; a slot is provided on the outer side wall of each pair of circular blocks; and each pair of slots is respectively engaged with a pair of insert plates.

[0013] In a preferred embodiment of the present invention, the top of the outer wall of the insert plate is provided with a bolt groove; the top of the outer wall of the circular block is threaded with a second bolt, and the bottom of the outer wall of the second bolt extends into the slot; a pair of second bolts respectively engage with a pair of bolt grooves.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By rotating the first threaded rod, the rotation of the first threaded rod causes the fixed shell to move, squeezing and clamping the upper and lower bearing seats. At this time, the top and bottom of the inner wall of the fixed shell clamp the top of the upper bearing seat and the bottom of the lower bearing seat. At the same time, the inner side wall of the fixed shell limits the inclined surface of the top of the upper bearing seat, so that the fixed upper and lower bearing seats cannot move or deviate, thus completing the locking or releasing of the upper and lower bearing seats. This further improves the efficiency of disassembly and assembly of the upper and lower bearing seats. Since the locking or releasing of the upper and lower bearing seats does not use a threaded structure, repeated disassembly and assembly will not cause thread wear, seizing, or preload attenuation, resulting in a longer service life and higher reliability.

[0015] 2. When replacing the upper and lower bearing housings, or replacing bearing housings of other models, by rotating the third threaded rod, which is threadedly connected to the fixing plate, the rotation of the third threaded rod causes the fixing plate to move, causing one end of the fixing plate to move out of the fixing groove on the mounting seat. At this time, the mounting seat can be removed from the placement groove, and then the mounting seat of another bearing housing can be replaced. Then, the third threaded rod is reversed, causing the fixing plate to snap into the fixing groove of the mounting seat of the other bearing housing. At this time, the placement groove, together with the fixing plate, fixes the mounting seat of the other bearing housing, completing the replacement of the other bearing housing. Thus, the bearing housing can be replaced without removing the connecting seat, and the replacement is more convenient. Therefore, this application makes it more convenient to replace or remove the bearing housing for cleaning and maintenance, while saving time for replacement, cleaning, and maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is an exploded view of the connecting seat and mounting seat of the present invention; Figure 3 This is a structural diagram of the mounting plate, fixing shell, first threaded rod, and limiting post of the present invention; Figure 4 This is a structural diagram of the fixing shell, spiral pattern, locking plate, and insert plate of the present invention; Figure 5 This is a bottom view of the fixed shell of the present invention; Figure 6 This is an exploded structural diagram of the mounting plate and limiting post of the present invention; Figure 7This is an exploded view of the limiting post and auxiliary block of the present invention; Figure 8 This is a bottom view of the connecting plate of the present invention; Figure 9 This is an exploded view of the connecting plate and the first bolt of the present invention.

[0018] In the diagram: 1. Connecting seat; 2. Mounting seat; 3. Lower bearing seat; 4. Upper bearing seat; 5. Mounting plate; 6. Connecting plate; 7. Fixing shell; 8. First threaded rod; 9. Square through groove; 10. Spiral pattern; 11. Locking block; 12. Connecting block; 13. Sliding through groove; 14. Limiting post; 15. First through groove; 16. Second through groove; 17. Second threaded rod; 18. Third through groove; 19. Spring; 20. Auxiliary block; 21. Auxiliary groove; 22. Placement groove; 23. Fixing plate; 24. Fixing groove; 25. Third threaded rod; 26. First bolt; 27. Bolt groove one; 28. Insert plate; 29. ​​Circular block; 30. Slot; 31. Bolt groove two; 32. Second bolt. Detailed Implementation

[0019] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: Please see Figures 1-9As shown, a detachable split bearing housing structure includes a connecting seat 1; a lower bearing housing 3 is provided at the top of the outer wall of the connecting seat 1 via a mounting seat 2; an upper bearing housing 4 is provided above the lower bearing housing 3; a pair of mounting plates 5 and a connecting plate 6 are respectively fixed to the outer walls of the lower bearing housing 3 and the upper bearing housing 4; a fixed shell 7 is slidably connected to the bottom of the outer walls of the pair of mounting plates 5; a first threaded rod 8 is rotatably connected to the opposite ends of the outer walls of the pair of mounting plates 5, and the pair of first threaded rods 8 are respectively threadedly connected to the pair of fixed shells 7. By fitting the upper bearing housing 4 and the lower bearing housing 3 together, rotating the first threaded rod 8, because the first threaded rod 8 is threadedly connected to the fixed shell 7, causes the rotation of the first threaded rod 8 to drive the fixed shell 7. 7. The movement causes the fixed housing 7 to press and clamp the upper bearing seat 4 and the lower bearing seat 3. At this time, the top and bottom of the inner wall of the fixed housing 7 clamp the top of the upper bearing seat 4 and the bottom of the lower bearing seat 3. At the same time, the inner side wall of the fixed housing 7 limits the inclined surface of the top of the upper bearing seat 4, so that the fixed upper bearing seat 4 and the lower bearing seat 3 cannot move or deviate. This completes the locking or releasing of the upper bearing seat 4 and the lower bearing seat 3, further improving the efficiency of disassembly and assembly of the upper bearing seat 4 and the lower bearing seat 3. Since the locking or releasing of the upper bearing seat 4 and the lower bearing seat 3 does not use a threaded structure, repeated disassembly and assembly will not cause thread wear, seizing, or preload attenuation, thus resulting in a longer service life and higher reliability.

[0021] A placement groove 22 is provided at the top of the outer wall of the connecting seat 1; the mounting seat 2 is slidably placed in the placement groove 22; the mounting seat 2 is fixedly connected to the lower bearing seat 3; a fixing plate 23 is slidably connected to the inner side wall of the connecting seat 1; a fixing groove 24 is provided on one side of the outer wall of the mounting seat 2, and the fixing groove 24 fits with the fixing plate 23; a third threaded rod 25 is rotatably connected to one side of the outer wall of the connecting seat 1, and the third threaded rod 25 is threadedly connected to the fixing plate 23. When it is necessary to replace the upper bearing seat 4 and the lower bearing seat 3, or to replace bearing seats of other models, by rotating the third threaded rod 25, because the third threaded rod 25 is threadedly connected to the fixing plate 23, the rotation of the third threaded rod 25 drives the fixing plate 23. 3. Move the fixed plate 23 so that one end of the fixed plate 23 moves out of the fixed groove 24 on the mounting base 2. At this time, the mounting base 2 can be removed from the placement groove 22. Then replace it with the mounting base 2 of another bearing housing. At this time, reverse the third threaded rod 25 so that the fixed plate 23 is inserted into the fixed groove 24 of the mounting base 2 of another bearing housing. At this time, the placement groove 22 cooperates with the fixed plate 23 to fix the mounting base 2 of the other bearing housing, thus completing the replacement of the other bearing housing. Therefore, the bearing housing can be replaced without removing the connecting seat 1, and the replacement is more convenient. This makes it more convenient to replace the bearing housing or remove the bearing housing 3 for cleaning and maintenance, while saving time for replacement, cleaning and maintenance.

[0022] A pair of sliding grooves 13 are provided at the top of the outer wall of the mounting plate 5; a limiting post 14 is provided in the sliding groove 13; a control mechanism is provided in the sliding groove 13, and the pair of limiting posts 14 move through the control mechanism; a first groove 15 is provided at the top of the outer wall of the connecting plate 6; a second groove 16 is provided on one side of the outer wall of the fixing shell 7; the limiting posts 14 are engaged with the first groove 15 and the second groove 16. After the first threaded rod 8 rotates and drives the fixing shell 7 to fix and clamp the upper bearing seat 4 and the lower bearing seat 3, the control mechanism drives the pair of limiting posts 14 to move, so that the limiting posts 14 move. The positioning post 14 moves into the first through groove 15 and the second through groove 16. At this time, the positioning post 14 locks the fixed shell 7 through the second through groove 16, making it difficult for the fixed shell 7 to shift. It also locks the connecting plate 6 through the first through groove 15, making it difficult for the upper bearing seat 4 to shift. This not only prevents the fixed shell 7 from shifting and causing the upper bearing seat 4 and lower bearing seat 3 to become unstable and shift in position, but also further distributes the pressure by locking the connecting plate 6, reducing the pressure on the fixed shell 7, the positioning block 11, and the connecting block 12, thereby further improving the impact load resistance of the overall structure of this application.

[0023] A square through groove 9 is provided at the top of the outer wall of the mounting base 2; one end of the outer wall of the first threaded rod 8 extends into the square through groove 9; a spiral pattern 10 is provided on the outer side wall of the first threaded rod 8; a locking block 11 is slidably connected in the square through groove 9, and the locking block 11 is threadedly connected to the spiral pattern 10; a connecting block 12 is fixedly connected to the bottom of the outer wall of the connecting plate 6, and the connecting block 12 fits into the locking block 11. When the first threaded rod 8 rotates, it drives the fixing shell 7 to fix and clamp the upper bearing seat 4 and the lower bearing seat 3. At the same time, the spiral pattern 10 on the first threaded rod 8 rotates accordingly, thereby driving the locking block 11 to move. When the upper bearing seat 4 and the lower bearing seat 3 are in contact, the locking block 11 on the bottom of the connecting plate 6 on the outer side wall of the upper bearing seat 4 simultaneously engages into the square through groove 9, so that the locking block 11 engages into the square through groove 9. As the positioning block 11 moves, it gradually engages with the connecting block 12, providing a dual fixing effect. It also shares the pressure with the fixed shell 7, effectively reducing the risk of deformation caused by long-term stress on the fixed shell 7. At the same time, the rigid engagement between the positioning block 11 and the connecting block 12 further restricts the relative displacement of the upper and lower bearing seats 3 in the axial and radial directions, ensuring that the overall structure can maintain precise positioning when subjected to impact loads, thus improving the overall vibration resistance and operational stability of the bearing seats. In addition, the threaded connection design between the positioning block 11 and the spiral thread 10 can simultaneously achieve the dual functions of fixing and limiting during the rotation of the first threaded rod 8, avoiding the complex process of setting up a separate positioning structure in traditional bolt connections, making disassembly and assembly operations more convenient and efficient, and shortening the downtime for equipment maintenance.

[0024] The control mechanism includes a second threaded rod 17; the second threaded rod 17 is rotatably connected to one side of the outer wall of the mounting plate 5; the second threaded rod 17 is threadedly connected to a pair of limiting posts 14; the outer walls of the pair of limiting posts 14 are slidably connected to the inner walls of a pair of sliding through grooves 13; the first through groove 15 is T-shaped; the second through groove 16 is L-shaped. When the upper bearing seat 4 and the lower bearing seat 3 are in contact, the limiting posts 14 penetrate the first through groove 15 on the connecting plate 6. When the fixed shell 7 moves, the limiting posts 14 enter the second through groove 16 through the opening. At this time, the second threaded rod 17 rotates. Because the second threaded rod 17 is threadedly connected to the pair of limiting posts 14, the rotation of the second threaded rod 17 drives the pair of limiting posts 14 to move, so that the pair of limiting posts 14 enter the interior of the first through groove 15 and the second through groove 16, further fixing and limiting the upper bearing seat 4, the lower bearing seat 3 and the fixed shell 7.

[0025] The outer walls of the limiting post 14 are provided with third through grooves 18 on opposite sides; one side of the inner wall of each pair of third through grooves 18 is fixed with an auxiliary block 20 by a spring 19; the inner walls of the first through groove 15 are provided with auxiliary grooves 21 on opposite sides, and each pair of auxiliary grooves 21 matches a pair of auxiliary blocks 20; the outer walls of the auxiliary blocks 20 have arc-shaped edges on both sides. When the auxiliary blocks 20 on the limiting post 14 move into the first through groove 15 with the limiting post 14, the arc-shaped edges on both sides of the outer walls of the auxiliary blocks 20 cause them to be squeezed and contracted when they come into contact with the inner wall of the first through groove 15. After moving to the position of the auxiliary groove 21, the spring 19 extends and locks into the auxiliary groove 21, which limits and fixes the connecting plate 6, effectively preventing the connecting plate 6 from moving up and down in a vibration environment, thereby reducing the upward pressure on the fixed shell 7 and making the upper bearing seat 4 and the lower bearing seat 3 fit more tightly. When disassembly is required, simply rotate the second threaded rod 17 in the opposite direction to drive the limiting post 14 out. The auxiliary block 20 is automatically retracted into the third through groove 18 by the pressure of the inner wall of the auxiliary groove 21. The whole process does not require additional tools. Compared with the disassembly steps of traditional bolt connection, it reduces the operation time and further improves the efficiency of equipment maintenance.

[0026] Example 2: Please see Figures 3-5 and Figure 9As shown, a pair of first bolts 26 are threaded to the top of the outer wall of the connecting plate 6, and the bottom ends of the outer walls of the pair of first bolts 26 penetrate the connecting plate 6; a pair of bolt slots 27 are provided at the top of the outer wall of the mounting plate 5; the pair of first bolts 26 respectively engage with the pair of bolt slots 27. After the upper bearing seat 4 and the lower bearing seat 3 are fixed together, the first bolts 26 are rotated to engage with the bolt slots 27 on the mounting plate 5, thus fixing the connecting plate 6 and the mounting plate 5. This, together with the fixing shell 7, the locking block 11 and the connecting block 12, the limiting post 14 and the auxiliary block 20, completes a five-fold multi-dimensional fixation, forming a three-dimensional protection system from basic clamping to rigid engagement, from limiting and preventing slippage to auxiliary locking. It not only achieves a rapid response to initial clamping through the fixing shell 7, but also constructs radial constraint with the rigid engagement of the locking block 11 and the connecting block 12, and works in conjunction with the limiting post. The geometric locking of 14 with the T-shaped and L-shaped through grooves forms axial positioning, and the elastic engagement of the auxiliary block 20 further eliminates vibration gaps. Finally, the mechanical locking of the first bolt 26 completes the closed-loop fixation. Each fixing unit independently bears the load in a specific direction and forms a stress dispersion network through structural coupling. When the bearing housing is subjected to alternating loads, the stress can be evenly transmitted to the base of the connecting seat 1 along the fixed path, avoiding structural deformation or failure caused by local stress concentration. Compared with the single-point force mode of traditional bolted connections, the five-fold fixing structure disperses the preload force borne by a single bolt to multiple contact interfaces, making the overall preload effect more stable and controllable. It effectively solves the problems of split surface opening and bearing out-of-roundness caused by preload deviation in traditional structures. At the same time, it reduces the wear risk of key components due to repeated disassembly and assembly, and improves the long-term operational reliability and maintenance convenience of the bearing housing.

[0027] A pair of insert plates 28 are fixedly connected to the top of the outer wall of the fixed shell 7; a circular block 29 is rotatably connected to the top of the outer wall of each pair of first bolts 26; a slot 30 is opened on the outer side wall of each pair of circular blocks 29; the slots 30 respectively fit into the pair of insert plates 28. After the first bolts 26 are fixed, the fixed shell 7 is then fixed to the upper bearing seat 4 and the lower bearing seat 3. At this time, the angle of the circular block 29 is adjusted so that the slot 30 is aligned with the insert plate 28. After the fixed shell 7 is fixed, the insert plate 28 is inserted into the slot 30 to fix the first bolt 26. This limits the first bolt 26 so that it will not rotate or move when subjected to vibration or external force, effectively preventing the problem of preload reduction caused by bolt loosening.

[0028] The top of the outer wall of the insert plate 28 is provided with a bolt groove 31; the top of the outer wall of the circular block 29 is threaded with a second bolt 32, and the bottom of the outer wall of the second bolt 32 extends into the slot 30; a pair of second bolts 32 respectively engage with a pair of bolt grooves 31. After the insert plate 28 is inserted into the slot 30, by rotating the second bolts 32, the second bolts 32 are engaged in the bolt grooves 31 on the insert plate 28, fixing the insert plate 28 and the fixing plate 23. This not only fixes the first bolt 26 so that it cannot move or rotate, but also limits the fixing shell 7 so that it cannot move, ensuring the fixing stability of the upper bearing seat 4 and the lower bearing seat 3, forming a bolt The two-way constraint mechanism of the anti-loosening to the fixed shell 7 limit, when the equipment generates high-frequency vibration, the second bolt 32 offsets the transverse shear force through the rigid contact between the bolt groove 31 and the insert plate 28. The cooperation between the insert plate 28 and the slot 30 restricts the circumferential rotation of the circular block 29, forming a composite fixing structure similar to mortise and tenon plus bolt. The vibration resistance is improved compared with the traditional single bolt anti-loosening method. At the same time, the setting of the second bolt 32 makes the fixed shell 7 and the first bolt 26 form a mechanical closed loop. When the fixed shell 7 is subjected to radial load, the load can be transferred to the circular block 29 through the insert plate 28, and then distributed to the mounting plate 5 through the first bolt 26, avoiding the fixed shell 7 from deforming due to stress alone.

[0029] In use, this invention involves fitting the upper bearing seat 4 and the lower bearing seat 3 together. Rotating the first threaded rod 8, which is threadedly connected to the fixed housing 7, causes the fixed housing 7 to move, thus clamping and fixing the upper bearing seat 4 and the lower bearing seat 3. Simultaneously, the top and bottom of the inner wall of the fixed housing 7 clamp and fix the top of the upper bearing seat 4 and the bottom of the lower bearing seat 3. The inner sidewall of the fixed housing 7 also limits the inclined surface of the top of the upper bearing seat 4, preventing the fixed upper bearing seat 4 and the lower bearing seat 3 from moving or shifting. This locks or releases the upper bearing seat 4 and the lower bearing seat 3, further improving the efficiency of assembling and disassembling them.

[0030] While the first threaded rod 8 rotates, it drives the fixed shell 7 to clamp the upper bearing seat 4 and the lower bearing seat 3. At the same time, the spiral pattern 10 on the first threaded rod 8 rotates, thereby driving the locking block 11 to move. When the upper bearing seat 4 and the lower bearing seat 3 are in contact, the locking block 11 on the bottom of the connecting plate 6 on the outer side wall of the upper bearing seat 4 simultaneously engages in the square through groove 9. As the locking block 11 moves, it gradually engages with the connecting block 12, achieving a double fixing effect. It also shares the pressure with the fixed shell 7, effectively reducing the risk of deformation caused by long-term stress on the fixed shell 7. At the same time, through the rigid engagement of the locking block 11 and the connecting block 12, the relative displacement of the upper and lower bearing seats 3 in the axial and radial directions is further restricted, so that the overall structure can still maintain accurate positioning when subjected to impact loads, improving the overall vibration resistance and operational stability of the bearing seat.

[0031] After the first threaded rod 8 rotates and drives the fixed shell 7 to fix and clamp the upper bearing seat 4 and the lower bearing seat 3, the control mechanism drives a pair of limiting posts 14 to move, so that the limiting posts 14 move into the first through groove 15 and the second through groove 16. At this time, the limiting posts 14 lock the fixed shell 7 through the second through groove 16, making it difficult for the fixed shell 7 to shift, and lock the connecting plate 6 through the first through groove 15, making it difficult for the upper bearing seat 4 to shift. This not only prevents the fixed shell 7 from shifting and causing the upper bearing seat 4 and the lower bearing seat 3 to become unstable and shift in position, but also further distributes the pressure by locking the connecting plate 6, reducing the pressure on the fixed shell 7, the locking block 11, and the connecting block 12, and further improving the impact load resistance of the overall structure of this application.

[0032] When the upper bearing seat 4 and the lower bearing seat 3 are in contact, the limiting post 14 penetrates the first through groove 15 on the connecting plate 6. When the fixed shell 7 moves, the limiting post 14 enters the second through groove 16 through the opening of the second through groove 16. At this time, the second threaded rod 17 rotates. Because the second threaded rod 17 is threadedly connected to a pair of limiting posts 14, the rotation of the second threaded rod 17 drives the pair of limiting posts 14 to move, so that the pair of limiting posts 14 enter the interior of the first through groove 15 and the second through groove 16, further fixing and limiting the upper bearing seat 4, the lower bearing seat 3 and the fixed shell 7.

[0033] When the auxiliary block 20 on the limiting post 14 moves into the first through groove 15, the auxiliary block 20 is compressed and contracted when it comes into contact with the inner wall of the first through groove 15 because the outer wall of the auxiliary block 20 is arc-shaped on both sides. When the auxiliary block 20 moves to the position of the auxiliary groove 21 with the limiting post 14, it extends out by the elastic force of the spring 19 and is locked into the auxiliary groove 21, which plays a role in limiting and fixing the connecting plate 6, effectively preventing the connecting plate 6 from moving up and down in the vibration environment, thereby reducing the upward pressure on the fixed shell 7, and making the upper bearing seat 4 and the lower bearing seat 3 fit more tightly. When disassembly is required, simply rotate the second threaded rod 17 in the opposite direction to drive the limiting post 14 out. The auxiliary block 20 is automatically retracted back into the third through groove 18 by the compression of the inner wall of the auxiliary groove 21. The whole process does not require additional tools, which reduces the operation time compared with the disassembly steps of traditional bolt connection and further improves the equipment maintenance efficiency.

[0034] After the upper bearing housing 4 and the lower bearing housing 3 are fitted and fixed, the first bolt 26 is rotated to engage with the bolt groove 27 on the mounting plate 5, thus fixing the connecting plate 6 and the mounting plate 5. This, combined with the fixing shell 7, the locking block 11 and connecting block 12, the limiting post 14, and the auxiliary block 20, completes a five-fold multi-dimensional fixation, forming a three-dimensional protection system from basic clamping to rigid engagement, from limiting and preventing slippage to auxiliary locking. The fixing shell 7 not only achieves rapid initial clamping response, but also utilizes the rigid engagement of the locking block 11 and connecting block 12 to construct radial constraint. The geometric locking of the limiting post 14 with the T-shaped and L-shaped through grooves forms axial positioning. The elastic engagement of the auxiliary block 20 further eliminates vibration gaps, ultimately ensuring smooth operation. The mechanical locking of the first bolt 26 completes the closed-loop fixation. Each fixing unit independently bears the load in a specific direction and forms a stress dispersion network through structural coupling. This allows the stress in the bearing housing to be evenly transmitted to the base of the connecting seat 1 along the fixing path when it is subjected to alternating loads, avoiding structural deformation or failure caused by local stress concentration. Compared with the single-point force mode of traditional bolted connections, the five-fold fixing structure disperses the preload force borne by a single bolt to multiple contact interfaces, making the overall preload effect more stable and controllable. It effectively solves the problems of split surface opening and bearing out-of-roundness caused by preload deviation in traditional structures. At the same time, it reduces the wear risk of key components due to repeated disassembly and assembly, and improves the long-term operational reliability and maintenance convenience of the bearing housing.

[0035] After the first bolt 26 is fixed, the fixing shell 7 is then used to fix the upper bearing seat 4 and the lower bearing seat 3. At this time, the angle of the circular block 29 is adjusted so that the slot 30 is aligned with the insert plate 28. After the fixing shell 7 is fixed, the insert plate 28 is inserted into the slot 30 to fix the first bolt 26. This limits the first bolt 26 so that it will not rotate or move when subjected to vibration or external force, effectively preventing the problem of preload reduction caused by bolt loosening.

[0036] After the insert plate 28 is inserted into the slot 30, the second bolt 32 is rotated to engage with the bolt groove 31 on the insert plate 28, thus fixing the insert plate 28 and the fixing plate 23. This not only fixes the first bolt 26 so that it cannot move or rotate, but also limits the fixing shell 7, preventing it from moving. This ensures the stability of the upper bearing seat 4 and the lower bearing seat 3, forming a two-way constraint mechanism that prevents bolt loosening and limits the fixing shell 7. When the equipment generates high-frequency vibration during operation, the second bolt 32 moves through the bolt groove 31. The rigid contact between the insert plate 28 and the slot 30 offsets the lateral shear force, while the cooperation between the insert plate 28 and the slot 30 restricts the circumferential rotation of the circular block 29, forming a composite fixing structure similar to mortise and tenon joints and bolts. This improves the vibration resistance compared to the traditional single bolt anti-loosening method. At the same time, the setting of the second bolt 32 makes the fixing shell 7 and the first bolt 26 form a mechanical closed loop. When the fixing shell 7 is subjected to radial load, the load can be transferred to the circular block 29 through the insert plate 28, and then distributed to the mounting plate 5 through the first bolt 26, avoiding deformation of the fixing shell 7 under stress alone.

[0037] When it is necessary to replace the upper bearing housing 4 and the lower bearing housing 3, or to replace bearing housings of other models, by rotating the third threaded rod 25, which is threadedly connected to the fixing plate 23, the rotation of the third threaded rod 25 causes the fixing plate 23 to move, so that one end of the fixing plate 23 moves out of the fixing groove 24 on the mounting seat 2. At this time, the mounting seat 2 can be removed from the placement groove 22, and then the mounting seat 2 of another bearing housing can be replaced. Then, the third threaded rod 25 is reversed, so that the fixing plate 23 is inserted into the fixing groove 24 of the mounting seat 2 of another bearing housing. At this time, the placement groove 22 cooperates with the fixing plate 23 to fix the mounting seat 2 of another bearing housing, thus completing the replacement of the other bearing housing. Therefore, the connecting seat 1 does not need to be removed, and the bearing housing can be replaced. The replacement is more convenient, which makes it more convenient to replace bearing housings or remove bearing housing 3 for cleaning and maintenance, while saving time for replacement, cleaning and maintenance.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A detachable split bearing housing structure, comprising a connecting seat (1); a lower bearing housing (3) is provided at the top of the outer wall of the connecting seat (1) via a mounting seat (2); an upper bearing housing (4) is provided above the lower bearing housing (3); a pair of mounting plates (5) and a connecting plate (6) are respectively fixedly connected to the outer walls of the lower bearing housing (3) and the upper bearing housing (4); characterized in that, A fixed shell (7) is slidably connected to the bottom of the outer wall of each pair of mounting plates (5); a first threaded rod (8) is rotatably connected to the opposite end of the outer wall of each pair of mounting plates (5), and the first threaded rod (8) is threadedly connected to the fixed shell (7) of each pair. The top of the outer wall of the mounting base (2) is provided with a square through groove (9); one end of the outer wall of the first threaded rod (8) extends into the square through groove (9); the outer wall of the first threaded rod (8) is provided with a spiral pattern (10); a locking block (11) is slidably connected in the square through groove (9), and the locking block (11) is threadedly connected to the spiral pattern (10); a connecting block (12) is fixedly connected to the bottom of the outer wall of the connecting plate (6), and the connecting block (12) fits into the locking block (11).

2. The detachable split bearing housing structure according to claim 1, characterized in that, The top of the outer wall of the mounting plate (5) is provided with a pair of sliding grooves (13); the sliding grooves (13) are provided with limiting posts (14); the sliding grooves (13) are provided with a control mechanism, and the pair of limiting posts (14) move through the control mechanism; the top of the outer wall of the connecting plate (6) is provided with a first groove (15); the outer wall of the fixing shell (7) is provided with a second groove (16); the limiting posts (14) are matched with the first groove (15) and the second groove (16).

3. The detachable split bearing housing structure according to claim 2, characterized in that, The control mechanism includes a second threaded rod (17); the second threaded rod (17) is rotatably connected to one side of the outer wall of the mounting plate (5); the second threaded rod (17) is threadedly connected to a pair of limiting posts (14); the outer walls of the pair of limiting posts (14) are respectively slidably connected to the inner walls of a pair of sliding through grooves (13); the first through groove (15) is T-shaped; the second through groove (16) is L-shaped.

4. The detachable split bearing housing structure according to claim 3, characterized in that, The outer walls of the limiting post (14) are provided with third through grooves (18) on opposite sides; one side of the inner wall of each pair of third through grooves (18) is fixed with an auxiliary block (20) by a spring (19); the inner walls of the first through groove (15) are provided with auxiliary grooves (21) on opposite sides, and each pair of auxiliary grooves (21) is matched with a pair of auxiliary blocks (20); the outer walls of the auxiliary blocks (20) are arc-shaped at one end of each side.

5. The detachable split bearing housing structure according to claim 1, characterized in that, The top of the outer wall of the connecting seat (1) is provided with a placement groove (22); the mounting seat (2) is slidably placed in the placement groove (22); the mounting seat (2) is fixedly connected to the lower bearing seat (3); the inner side wall of the connecting seat (1) is slidably connected with a fixing plate (23); a fixing groove (24) is provided on one side of the outer wall of the mounting seat (2), and the fixing groove (24) fits with the fixing plate (23); a third threaded rod (25) is rotatably connected to one side of the outer wall of the connecting seat (1), and the third threaded rod (25) is threadedly connected to the fixing plate (23).

6. The detachable split bearing housing structure according to claim 5, characterized in that, The top of the outer wall of the connecting plate (6) is threaded with a pair of first bolts (26), and the bottom of the outer wall of the pair of first bolts (26) penetrates the connecting plate (6); the top of the outer wall of the mounting plate (5) is provided with a pair of bolt grooves (27); the pair of first bolts (26) respectively fit into the pair of bolt grooves (27).

7. The detachable split bearing housing structure according to claim 6, characterized in that, A pair of insert plates (28) are fixed to the top of the outer wall of the fixed shell (7); a circular block (29) is rotatably connected to the top of the outer wall of each pair of first bolts (26); a slot (30) is opened on the outer side wall of each pair of circular blocks (29); and each pair of slots (30) is respectively engaged with a pair of insert plates (28).

8. The detachable split bearing housing structure according to claim 7, characterized in that, The top of the outer wall of the insert plate (28) is provided with a bolt groove (31); the top of the outer wall of the circular block (29) is threaded with a second bolt (32), and the bottom of the outer wall of the second bolt (32) extends into the slot (30); a pair of second bolts (32) respectively fit into a pair of bolt grooves (31).

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