Dynamic separator
By setting a limiting structure and baffle design on the small pulley, the problem of easy slippage between the motor and the belt is solved, and the stable operation and convenient maintenance of the separator are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENGTENG (HAIMEN) IND CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-21
AI Technical Summary
In existing pulverized coal separators, the direct drive of the motor and shaft makes maintenance inconvenient, and the connection between the motor and the belt is prone to slippage, affecting the rotation of the rotating blades.
The design incorporates a limiting structure for the small pulley and baffle. The grooves on the small pulley and the baffle work together to prevent slippage and to tightly connect the motor output end. The design of the bearing seat and connecting plate prevents disturbance of the rotating blades.
It effectively prevents belt slippage, improves the rotation effect of the rotating blades, facilitates equipment maintenance, and ensures the stable operation of the separator.
Smart Images
Figure CN224525287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fine coal powder separation equipment, specifically a dynamic separator. Background Technology
[0002] In the previous pulverized coal separator, the motor and shaft were directly driven, with the motor located at the highest point of the device. This made maintenance difficult when problems occurred. In the separator with other motors located on one side of the device, slippage was prone to occur when the belt and motor output shaft were connected, affecting the rotation of the lower separator's rotating blades.
[0003] Document CN 217094439 U discloses a novel belt-driven coal powder separator, comprising a belt drive device, an upper housing, a rotating component, a lower housing, and a coal chute assembly. The belt drive device is positioned above the upper housing. The belt drive device includes a large pulley, a drive disc, a bearing housing, and a bearing. The large pulley and the outer ring of the bearing are installed with an interference fit. The inner ring of the bearing is fixedly connected to the bearing housing, which is fitted onto the outside of the rotating component and fixedly connected to the upper housing. The large pulley rotates around the bearing, thereby driving the drive disc to rotate, which in turn drives the rotating component to rotate. A four-way adjustable motor mount is connected to the side end of the upper housing, and a small pulley is connected to the output shaft of a variable frequency motor. The lower end of the upper housing is connected to the upper end of the lower housing. The coal chute assembly passes sequentially through the belt drive device, the upper housing, and the lower housing. In this structure, slippage is prone to occur between the motor and the belt during use.
[0004] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention
[0005] To address the aforementioned problems, this utility model discloses a dynamic separator that effectively improves the rotation effect of the separator's rotating blades and prevents belt slippage.
[0006] The technical solution of this utility model is as follows: a dynamic separator, including a drive structure, a connecting structure and blades. The drive structure drives the blades to rotate through the connecting structure. The blades include stationary blades and rotating blades. The drive structure includes a motor and a belt. The output shaft of the motor drives the belt through a small pulley and a large pulley. A limiting structure is provided in the small pulley. The limiting structure includes a groove and a baffle on the small pulley. The connecting structure includes a transition plate, a bearing seat and a connecting plate.
[0007] By adopting the above technical solution, a baffle is installed in the groove of the small pulley to be tightly connected to the output end of the motor to prevent slippage. The large pulley drives the rotating blades to rotate through the connecting structure to stir the material.
[0008] Preferably, the upper part of the small pulley is provided with a downward cylindrical groove, the bottom of the groove is provided with a C-shaped groove bottom, and a bolt hole is provided at the center of the groove bottom.
[0009] By adopting the above technical solution, a C-shaped groove bottom is provided in the groove, which can cooperate with the baffle and lock with the output end of the motor.
[0010] Preferably, the baffle has a bolt hole in the center and a protrusion centered on the inner side of the baffle edge. The protrusion is located at the middle of the center and the edge. The protrusion matches the C-shaped notch at the bottom of the groove to prevent the baffle from shifting. The baffle fixes the small pulley to the output shaft of the motor with bolts.
[0011] By adopting the above technical solution, through the cooperation between the baffle and the bottom of the small pulley, the protrusion on the baffle can be precisely locked into the notch position. After the motor has been used for a long time, there will be no circumferential displacement between the small pulley, the baffle and the output shaft of the motor.
[0012] Preferably, the inner side of the belt is adapted to the small pulley and the external gear of the large pulley. The upper part of the large pulley is rotatably connected to the connecting plate on the outer wall of the conveying pipe through a labyrinth seal. The lower part of the large pulley is connected to the bearing seat through a transition plate. The transition plate is L-shaped. The large pulley, the transition plate, the bearing seat and the connecting plate are all located inside the outer cover.
[0013] By adopting the above technical solution, the motor drives the small pulley to rotate, the small pulley drives the belt to rotate the large pulley, and then the large pulley drives the transition plate, bearing seat and connecting plate to rotate.
[0014] Preferably, an upper bearing and a lower bearing are respectively provided in the upper and lower parts of the bearing housing. The upper bearing abuts against the L-shaped transition plate, and the lower bearing abuts against the connecting plate. The bottom of the connecting plate is connected to the hollow rotating shaft. The hollow rotating shaft is located on the periphery of the conveying pipe and is concentric with the conveying pipe. There is a gap between the hollow rotating shaft and the conveying pipe to facilitate the rotation of the hollow rotating shaft.
[0015] By adopting the above technical solution, the upper bearing on the bearing housing bears the load for the components above, while the lower bearing can play a self-aligning role, preventing the rotating blades from being disturbed and affecting their rotation.
[0016] Preferably, a rotating blade is fixedly connected to the side of the hollow rotating shaft, and a stationary blade is provided on the outer side of the rotating blade. The top of the stationary blade and the bottom of the outer cover are fixedly connected.
[0017] Preferably, the motor is detachably connected to the base and the side of the outer cover by bolts, and the belt and small pulley on the upper part of the motor are located inside the belt cover, which is connected to the outer cover.
[0018] By adopting the above technical solution, the belt and small pulley are located inside the belt cover, which can prevent external forces from affecting the belt and the rotation of the large pulley.
[0019] The advantages of this utility model are as follows: 1. This utility model uses a C-shaped groove bottom inside the small pulley. The notch at the bottom of the groove is used to engage the baffle plate, and the baffle plate has a protrusion that matches the notch. When the baffle plate and the small pulley are fixed with bolts, circumferential displacement between the baffle plate and the small pulley can be effectively prevented.
[0020] 2. By setting the motor on the side of the outer casing, this utility model can adjust the overall height of the device, making it easier to inspect and repair in case of malfunction.
[0021] 3. In this utility model, the upper bearing on the bearing seat can bear the weight of the upper component, while the lower bearing can play a self-aligning role to prevent the rotating blades from being disturbed and affecting their rotation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the drive structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the small pulley of this utility model;
[0025] Figure 4 This utility model Figure 3 A top view of the structure;
[0026] Figure 5 This is a schematic diagram of the structure of the baffle of this utility model;
[0027] Figure 6 This utility model Figure 5 A top view structural diagram.
[0028] The components are: 1. Motor, 101. Base, 2. Belt cover, 201. Belt, 3. Small pulley, 301. Groove, 302. Groove bottom, 303. Notch, 4. Baffle, 401. Protrusion, 5. Large pulley, 6. Connecting plate, 7. Transition plate, 8. Bearing seat, 9. Upper bearing, 10. Lower bearing, 11. Connecting plate, 12. Hollow shaft, 13. Rotating blade, 14. Stationary blade, 15. Conveying pipe, 16. Outer cover. Detailed Implementation
[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0030] like Figure 1-6 As shown, the dynamic separator includes a drive structure, a connecting structure, and blades. The drive structure drives the blades to rotate through the connecting structure. The blades include stationary blades 14 and rotating blades 13. The drive structure includes a motor 1 and a belt 201. The output shaft of the motor 201 drives the belt 201 through a small pulley 3 and a large pulley 5. The small pulley 3 is provided with a limiting structure, which includes a groove 301 and a baffle 4 on the small pulley 3. The connecting structure includes a transition plate 7, a bearing seat 8, and a connecting plate 11. The baffle 4 in the groove 301 of the small pulley 3 can be tightly connected to the output end of the motor 1 to prevent slippage. The large pulley 5 drives the rotating blades 13 to rotate through the connecting structure to stir the material.
[0031] The upper part of the small pulley 3 is provided with a downward cylindrical groove 301, and the bottom of the groove 301 is provided with a C-shaped groove bottom 302. The center of the groove bottom 302 is provided with a bolt hole. The C-shaped groove bottom 302 is provided in the groove 301, which can cooperate with the baffle 4 and lock with the output end of the motor 1.
[0032] The baffle 4 has a bolt hole in the center and a protrusion 401 centered on the inner edge of the baffle 4. The protrusion 401 is located in the middle of the center and the edge. The protrusion 401 and the C-shaped notch 303 of the groove bottom 302 are matched to prevent the baffle 4 from shifting. The baffle 4 fixes the small pulley 3 to the output shaft of the motor 1 with bolts. Through the cooperation between the baffle 4 and the groove bottom 302 of the small pulley 3, the protrusion 401 on the baffle 4 can be locked in the position of the notch 303. After the motor 1 has been used for a long time, there will be no circumferential displacement between the small pulley 3, the baffle 44 and the output shaft of the motor 1.
[0033] The inner side of the belt 201 is adapted to the external gears of the small pulley 3 and the large pulley 5. The upper part of the large pulley 5 is rotatably connected to the connecting plate 6 on the outer side wall of the conveying pipe 15 through a labyrinth seal. The lower part of the large pulley 5 is connected to the bearing seat 8 through the transition plate 7. The transition plate 7 is L-shaped. The large pulley 5, the transition plate 7, the bearing seat 8 and the connecting plate 11 are all located inside the outer cover 16. The motor 1 drives the small pulley 3 to rotate. The small pulley 3 drives the belt 201, thereby driving the large pulley 5 to rotate. Then the large pulley 5 drives the transition plate 7, the bearing seat 8 and the connecting plate 11 to rotate.
[0034] The upper bearing 9 and lower bearing 10 are respectively provided in the upper and lower parts of the bearing housing 8. The upper bearing 9 abuts against the L-shaped transition plate 7, and the lower bearing 10 abuts against the connecting plate 11. The bottom of the connecting plate 11 is connected to the hollow rotating shaft 12. The hollow rotating shaft 12 is located on the periphery of the conveying pipe 15 and is concentric with the conveying pipe 15. There is a gap between the hollow rotating shaft 12 and the conveying pipe 15 to facilitate the rotation of the hollow rotating shaft 12. The upper bearing 9 on the bearing housing 8 bears the load of the upper component, and the lower bearing 10 can play a self-aligning role to prevent the rotating blade 13 from being disturbed and affecting the rotation of the rotating blade 13.
[0035] A rotating blade 13 is fixedly connected to the side of the hollow rotating shaft 12. A stationary blade 14 is provided on the outside of the rotating blade 13. The top of the stationary blade 14 is fixedly connected to the bottom of the outer cover 16.
[0036] The motor 1 is detachably connected to the base 101 and the outer cover 16 by bolts. The belt 201 and the small pulley 3 on the upper part of the motor 1 are located inside the belt cover 2. The belt cover 2 is connected to the outer cover 16. The belt 201 and the small pulley 3 are located inside the belt cover 2, which can prevent external forces from affecting the belt 201 and affecting the rotation of the large pulley 5.
[0037] Motor 1 drives small pulley 3 to rotate, small pulley 3 drives belt 201 to drive large pulley 5 to rotate, then large pulley 5 drives transition plate 7, bearing seat 8 and connecting plate 11 to rotate, connecting plate 11 drives hollow rotating shaft 12 fixedly connected to it to rotate, and then hollow rotating shaft 12 drives rotating blade 13 to rotate.
[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.
Claims
1. A dynamic separator, comprising a drive structure, a connecting structure, and blades, wherein the drive structure drives the blades to rotate via the connecting structure, the blades comprising stationary blades and rotating blades, and the drive structure comprising a motor and a belt, characterized in that: The motor output shaft drives the belt through a small pulley and a large pulley. The small pulley is provided with a limiting structure, which includes a groove and a baffle on the small pulley. The connecting structure includes a transition plate, a bearing seat and a connecting plate.
2. The dynamic separator according to claim 1, characterized in that: The small pulley has a downward-facing cylindrical groove on its upper part, and a C-shaped groove bottom at the bottom of the groove, with a bolt hole at the center of the groove bottom.
3. The dynamic separator according to claim 2, characterized in that: The baffle has a bolt hole in the center and a protrusion centered on the inner edge of the baffle. The protrusion is located at the middle of the center and the edge. The protrusion matches the C-shaped notch at the bottom of the groove to prevent the baffle from shifting. The baffle fixes the small pulley to the output shaft of the motor with bolts.
4. The dynamic separator according to claim 1, characterized in that: The inner side of the belt is adapted to the small pulley and the external gear of the large pulley. The upper part of the large pulley is rotatably connected to the connecting plate on the outer wall of the conveying pipe through a labyrinth seal. The lower part of the large pulley is connected to the bearing seat through a transition plate. The transition plate is L-shaped. The large pulley, the transition plate, the bearing seat and the connecting plate are all located inside the outer cover.
5. The dynamic separator according to claim 1, characterized in that: The bearing housing is provided with an upper bearing and a lower bearing in the upper and lower parts respectively. The upper bearing abuts against the L-shaped transition plate, and the lower bearing abuts against the connecting plate. The bottom of the connecting plate is connected to the hollow rotating shaft. The hollow rotating shaft is located on the periphery of the conveying pipe and is concentric with the conveying pipe. There is a gap between the hollow rotating shaft and the conveying pipe to facilitate the rotation of the hollow rotating shaft.
6. The dynamic separator according to claim 5, characterized in that: A rotating blade is fixedly connected to the side of the hollow rotating shaft, and a stationary blade is provided on the outer side of the rotating blade. The top of the stationary blade and the bottom of the outer cover are fixedly connected.
7. The dynamic separator according to claim 1, characterized in that: The motor is detachably connected to the base and the side of the outer cover by bolts. The belt and small pulley on the upper part of the motor are located inside the belt cover, and the belt cover and the outer cover are connected.