High-stability oscillating granulator

Abstract

The utility model discloses a high-stability oscillating granulator which comprises a rack, a hopper fixed on the rack, a granulating part arranged on the hopper and a driving part arranged on the rack, the key points are that the driving part comprises a driving box which is fixed on the rack and is filled with lubricating oil, a reduction gearbox which is fixed on the driving box and is communicated with the driving box, a driving motor which is arranged on the rack, and a speed reduction assembly which is arranged in the reduction gearbox and is driven by the driving motor; the driving shaft is arranged on the driving box and is connected with a powder scraping wheel in the granulating part; and the driving assembly is positioned in the driving box and is arranged between the output end of the speed reducing assembly and the driving shaft. The granulator disclosed by the utility model has the advantages of stable operation, high reliability, large power output, high granularity consistency and low failure rate, and can be widely applied to material granulation production, especially high-viscosity materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulators, and in particular relates to a high-stability swing granulator. Background Art

[0002] Granulators are widely used in the pharmaceutical, chemical, food and other industries. They can make wet powder mixtures into granules of various specifications. The swing granulator includes a drive unit and a granulation unit. The drive end of the drive unit drives the powder scraper in the granulation unit to swing and rotate, and cooperates with the screen to achieve granulation.

[0003] The drive unit includes the transmission line of the worm gear pair connected by the motor reduction and the rack transmission pair. The rack transmission pair is lubricated by splash lubrication, which is very likely to cause inadequate lubrication, aggravate component wear, unstable heat dissipation, increase the failure rate, and lead to unstable operation of the equipment. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a swing type granulator, which realizes lubrication and heat dissipation of the inner parts of the driving part by adopting oil immersion lubrication, so that the driving part can run with high stability.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-stability swing granulator, comprising a frame, a hopper fixed on the frame, a granulating part arranged on the hopper and a driving part arranged on the frame, and the key is: the driving part comprises a driving box fixed on the frame and filled with lubricating oil, a reduction box fixed on the driving box and communicated with the driving box, a driving motor arranged on the frame, a reduction assembly arranged in the reduction box and driven by the driving motor, a driving shaft arranged on the driving box and connected to the scraping wheel in the granulating part, and a driving assembly located in the driving box and arranged between the output end of the reduction assembly and the driving shaft.

[0006] Furthermore, the reduction box includes a mounting plate connected to the drive box, a worm gear mounting sleeve located on the outside of the mounting plate, a cover plate located on the outside of the worm gear mounting sleeve, a worm mounting sleeve located on the top of the worm gear mounting sleeve, and a first end cover and a second end cover respectively located at both ends of the worm mounting sleeve, and an oil hole is provided on the mounting plate.

[0007] Furthermore, the reduction assembly includes a worm wheel and a matching worm wheel shaft arranged in the worm wheel mounting sleeve, and a worm and a matching worm shaft located in the worm mounting sleeve and meshing with the worm wheel, both ends of the worm wheel shaft are rotatably limited on the mounting plate and the cover plate respectively by means of worm wheel shaft bearings, the inner end portion of the worm wheel shaft passes through the mounting plate and is located in the drive box, and both ends of the worm shaft are limited between the first end cover and the second end cover by means of worm shaft bearings, and one end passes through the first end cover and is located on the outside of the first end cover.

[0008] Furthermore, a pulley transmission assembly is provided between the worm shaft and the output shaft of the drive motor, and the pulley transmission assembly includes a driven pulley arranged on the worm shaft, a driving pulley arranged on the output shaft of the drive motor, and a transmission belt arranged between the driving pulley and the driven pulley.

[0009] Furthermore, the driving assembly includes a dial fixed on the worm gear shaft, a driving gear fixed on the driving shaft, and a rack hinged to the dial at the bottom and eccentrically arranged on the dial and meshing with the driving gear at the top.

[0010] Furthermore, a limit assembly is provided between the driving gear and the driving shaft, and the limit assembly includes two guard plates which are sleeved on the driving shaft and respectively located on both sides of the driving gear, and a back plate which is connected to the bottom of the two guard plates and forms a rack limit cavity.

[0011] Furthermore, a guard plate sleeve is provided between the guard plate and the drive shaft, a guard plate block is provided between the guard plate and the rack, and the guard plate sleeve, the guard plate block and the back plate are all made of pure copper material.

[0012] Furthermore, the granulation section includes a first scraping wheel, a second scraping wheel and a matching screen that are rotatably arranged on the hopper, the first scraping wheel is connected to the driving shaft, the second scraping wheel is connected to the driven shaft, and a gear transmission assembly is provided between the driving shaft and the driven shaft to form a co-directional rotating structure.

[0013] Furthermore, the drive box is provided with bearing seats respectively matching the drive shaft and the driven shaft.

[0014] Furthermore, an intermediate gear box connected to the drive box and communicated with the drive box is provided above the reduction box, the gear transmission assembly is located in the intermediate gear box, and the gear transmission assembly includes a driving gear connected to the drive shaft, a driven gear connected to the driven shaft, and an intermediate gear rotationally limited on the intermediate gear box and respectively meshed with the driving gear and the driven gear.

[0015] The beneficial effects of the utility model are: 1. The driving box, the reduction box and the intermediate gear box are interconnected, and the components in the box are lubricated and cooled by oil immersion, which ensures the lubrication and cooling effects and improves the stability of the driving part; 2. The driving box, the reduction box and the intermediate gear box in the driving part and the components therein are modularly designed, which is convenient for installation and maintenance; 3. The intermediate gear box is arranged at the rear side of the driving box and above the reduction box, and is interconnected with the driving box, so that the shaft and gear transmission components matching the scraping wheel are reasonably arranged, avoiding the phenomena of unstable power transmission and poor meshing; 4. The granulator has the advantages of stable operation, high reliability, large power output, high particle size consistency and low failure rate, and can be widely used in material granulation production, especially high viscosity materials.

[0016] The utility model is described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the front view of the high-stability swing granulator of the utility model;

[0018] Figure 2 Yes Yes Figure 1 Stereoscopic view of

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure after removing the hopper and frame;

[0020] Figure 4 yes Figure 3 Another structural schematic diagram of;

[0021] Figure 5 yes Figure 3 Schematic diagram of the structure after removing the reduction box, intermediate gear box and drive box;

[0022] Figure 6 yes Figure 5 Another structural schematic diagram of;

[0023] Figure 7 It is a structural schematic diagram of a position limiting component in a high-stability swing granulator of the utility model.

[0024] In the accompanying drawings, 1, frame, 2, hopper, 3, drive box, 4, reduction box, 5, drive motor, 6, drive shaft, 7, mounting plate, 8, worm gear mounting sleeve, 9, cover plate, 10, worm mounting sleeve, 11, first end cover, 12, second end cover, 13, worm wheel, 14, worm wheel shaft, 15, worm, 16, worm shaft, 17, driving pulley, 18, driven pulley, 19, transmission belt, 20, fixing plate, 21, dial, 22, driving gear, 23, rack, 24, guard plate, 25, back plate, 26, guard plate sleeve, 27, guard plate block, 28, first scraping wheel, 29, second scraping wheel, 30, driven shaft, 31, bearing seat, 32, intermediate wheel, 33, intermediate wheel box, 34, driving gear, 35, driven gear. DETAILED DESCRIPTION

[0025] See attached Figure 1-7 The utility model provides a high-stability swing granulator, which includes a frame 1, a hopper 2 fixed on the frame 1, a granulating part arranged on the hopper 2, and a driving part arranged on the frame 1.

[0026] See attached Figure 1-7 The driving part includes a driving box 3 fixed on the frame 1 and filled with lubricating oil, a reduction box 4 fixed on the driving box 3 and connected to the driving box 3, a driving motor 5 arranged on the frame 1, a reduction assembly arranged in the reduction box 4 and driven by the driving motor 5, a driving shaft 6 arranged on the driving box 3 and connected to the scraping wheel in the granulating part, and a driving assembly located in the driving box 3 and arranged between the output end of the reduction assembly and the driving shaft 6. The oil immersion method is adopted to achieve lubrication and heat dissipation, which is convenient for lubrication and heat dissipation of various components in the driving box 3, the reduction box 4 and the intermediate wheel box 33, so as to ensure the stability of the operation of the driving part.

[0027] See attached Figure 3 and 4 The above-mentioned reduction box 4 includes a mounting plate 7 connected to the drive box 3, a worm gear mounting sleeve 8 located on the outside of the mounting plate 7, a cover plate 9 located on the outside of the worm gear mounting sleeve 8, a worm mounting sleeve 10 located on the top of the worm gear mounting sleeve 8, and a first end cover 11 and a second end cover 12 respectively located at both ends of the worm mounting sleeve 10. An oil hole is provided on the mounting plate to allow the lubricating oil in the drive box 3 to flow into the reduction box 4.

[0028] See attached Figure 3-6The above-mentioned reduction assembly includes a worm wheel 13 and a matching worm wheel shaft 14 arranged in the worm wheel mounting sleeve 8, and a worm 15 and a matching worm shaft 16 located in the worm mounting sleeve 10 and meshing with the worm wheel 13. Both ends of the worm wheel shaft 14 are rotationally limited on the mounting plate 7 and the cover plate 9 respectively by means of worm wheel shaft bearings. The inner end of the worm wheel shaft 14 passes through the mounting plate 7 and is located in the drive box 3. Both ends of the worm shaft 16 are limited between the first end cover 11 and the second end cover 12 by means of worm shaft bearings, and one end passes through the first end cover 11 and is located outside the first end cover 11.

[0029] See attached Figure 1 and 2 A pulley transmission assembly is provided between the worm shaft 16 and the output shaft of the driving motor 5, and the pulley transmission assembly includes a driven pulley 18 provided on the worm shaft 16, a driving pulley 17 provided on the output shaft of the driving motor 5, and a transmission belt 19 provided between the driving pulley 17 and the driven pulley 18. The driving motor 5 is fixed on a fixing plate 20 connected to the frame 1.

[0030] See attached Figure 5-7 The above-mentioned driving assembly includes a dial 21 fixed on the worm gear shaft 14, a driving gear 22 fixed on the driving shaft 6, and a rack 23 whose bottom is hinged to the dial 21 and eccentrically arranged on the dial 21 and whose top is meshed with the driving gear 22.

[0031] In order to limit the position between the rack 23 and the driving gear 22 to ensure that the two are always in a meshing state, a limiting component for limiting the rack 23 is provided between the driving gear 22 and the driving shaft 6. The limiting component includes two guard plates 24 which are mounted on the driving shaft 6 and are respectively located on both sides of the driving gear 22, and a back plate 25 which is connected to the bottom of the two guard plates 24 and forms a rack limiting cavity.

[0032] A guard plate sleeve 26 is provided between the guard plate 24 and the drive shaft 6, and a guard plate 27 is provided between the guard plate 24 and the rack 23. The guard plate sleeve 26, the guard plate 27 and the back plate 25 are all made of pure copper material to reduce the friction between the rack 23 and the above components when the rack 23 moves.

[0033] See attached Figure 2 and 3 The granulation part includes a first scraping wheel 28, a second scraping wheel 29 and a matching screen (not shown in the figure) rotatably arranged on the hopper 2. The first scraping wheel 28 is connected to the driving shaft 6, the second scraping wheel 29 is connected to the driven shaft 30, and a gear transmission assembly is provided between the driving shaft 6 and the driven shaft 30 to form a co-rotating structure.

[0034] See attached Figure 1 , 2, 4, 5 and 7, an intermediate gear box 33 connected to and in communication with the drive box 3 is provided above the reduction box 4, and a gear transmission assembly is located in the intermediate gear box 33, and the gear transmission assembly includes a driving gear 34 connected to the drive shaft 6, a driven gear 35 connected to the driven shaft 30, and an intermediate gear 32 which is rotationally limited on the intermediate gear box 33 and meshes with the driving gear 34 and the driven gear 35 respectively. A bearing seat 31 and a bearing which are matched with the drive shaft 6 and the driven shaft 30 respectively are provided on the drive box 3. One end of the drive shaft 6 and the driven shaft 30 are both located in the intermediate gear box 33 to facilitate the installation of corresponding gears. An intermediate gear shaft for installing the intermediate gear 32 is also provided on the drive box 3, and a bearing is provided between the intermediate gear 32 and the intermediate gear shaft. The structures of the gear parts in the driving gear 34, the driven gear 35 and the intermediate gear 32 are the same. The sum of the upper and lower amplitudes of the rack 23 is equal to an integral multiple of the circumference of the pitch circle of the drive shaft 6, that is, when the worm wheel 13 rotates one circle, the scraper wheel rotates one circle, two circles, three circles, etc.

[0035] The working process of the granulator of the utility model is as follows: the driving motor 5 is started, and the worm 15 is driven to rotate through the pulley transmission assembly. After the speed is reduced by the worm gear reduction structure, the power is transmitted to the driving assembly through the worm gear shaft 14. The dial 21 rotates and drives the rack 23 to swing, and then drives the driving shaft 6 meshed with the rack 23 to swing and rotate. Under the transmission of the gear transmission assembly, the power is distributed to the two scraping wheels and the two scraping wheels are synchronously moved in the same direction. The scraping wheels cooperate with the screen to act on the material in the hopper 2 to achieve granulation.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A high-stability swing granulator, comprising a frame (1), a hopper (2) fixed to the frame (1), a granulating unit arranged on the hopper (2), and a driving unit arranged on the frame (1), characterized in that: The driving section comprises a driving box (3) fixed to the frame (1) and filled with lubricating oil, a reduction box (4) fixed to the driving box (3) and connected to the driving box (3), a driving motor (5) arranged on the frame (1), a reduction assembly arranged in the reduction box (4) and driven by the driving motor (5), a driving shaft (6) arranged on the driving box (3) and connected to a powder scraping wheel in the granulating section, and a driving assembly located in the driving box (3) and arranged between an output end of the reduction assembly and the driving shaft (6).

2. The high-stability oscillating granulator according to claim 1, characterized in that: The reduction box (4) comprises a mounting plate (7) connected to the drive box (3), a worm gear mounting sleeve (8) located outside the mounting plate (7), a cover plate (9) located outside the worm gear mounting sleeve (8), a worm gear mounting sleeve (10) located on the top of the worm gear mounting sleeve (8), and a first end cover (11) and a second end cover (12) respectively located at two ends of the worm gear mounting sleeve (10), and an oil hole is provided on the mounting plate (7).

3. The high stability oscillating granulator according to claim 2, characterized in that: The reduction assembly comprises a worm wheel (13) and a matching worm wheel shaft (14) arranged in the worm wheel mounting sleeve (8), and a worm (15) and a matching worm shaft (16) located in the worm mounting sleeve (10) and meshing with the worm wheel (13); both ends of the worm wheel shaft (14) are rotatably limited on the mounting plate (7) and the cover plate (9) respectively by means of worm wheel shaft bearings; the inner end of the worm wheel shaft (14) passes through the mounting plate (7) and is located in the drive box (3); both ends of the worm shaft (16) are limited between the first end cover (11) and the second end cover (12) by means of worm shaft bearings, and one end passes through the first end cover (11) and is located outside the first end cover (11).

4. The high stability oscillating granulator according to claim 3, characterized in that: A pulley transmission assembly is provided between the worm shaft (16) and the output shaft of the drive motor (5), the pulley transmission assembly comprising a driven pulley (18) arranged on the worm shaft (16), a driving pulley (17) arranged on the output shaft of the drive motor (5), and a transmission belt (19) arranged between the driving pulley (17) and the driven pulley (18).

5. The high-stability oscillating granulator according to claim 3 is characterized in that: The driving assembly comprises a dial (21) fixed on the worm gear shaft (14), a driving gear (22) fixed on the driving shaft (6), and a rack (23) whose bottom is hinged to the dial (21) and eccentrically arranged on the dial (21) and whose top is meshed with the driving gear (22).

6. The high-stability oscillating granulator according to claim 5, characterized in that: A limit assembly is provided between the driving gear (22) and the driving shaft (6), the limit assembly comprising two guard plates (24) sleeved on the driving shaft (6) and respectively located on both sides of the driving gear (22), and a back plate (25) connected to the bottom of the two guard plates (24) and forming a rack limit cavity.

7. The high-stability oscillating granulator according to claim 6, characterized in that: A guard plate sleeve (26) is provided between the guard plate (24) and the drive shaft (6), and a guard plate (27) is provided between the guard plate (24) and the rack (23); the guard plate sleeve (26), the guard plate (27) and the back plate (25) are all made of pure copper.

8. The high-stability oscillating granulator according to any one of claims 1 to 7, characterized in that: The granulating section comprises a first scraping wheel (28), a second scraping wheel (29) and a matching screen which are rotatably arranged on the hopper (2); the first scraping wheel (28) is connected to the driving shaft (6); the second scraping wheel (29) is connected to the driven shaft (30); and a gear transmission assembly is provided between the driving shaft (6) and the driven shaft (30) to form a co-rotating structure.

9. The high-stability oscillating granulator according to claim 8, characterized in that: The drive box (3) is provided with a bearing seat (31) respectively matching the drive shaft (6) and the driven shaft (30).

10. The high-stability oscillating granulator according to claim 8, characterized in that: A gear box (33) connected to the drive box (3) and in communication with the drive box (3) is provided above the reduction box (4); the gear transmission assembly is located in the gear box (33); the gear transmission assembly comprises a driving gear (34) connected to the drive shaft (6), a driven gear (35) connected to the driven shaft (30), and an intermediate gear (32) rotationally limited on the intermediate gear box (33) and respectively meshing with the driving gear (34) and the driven gear (35).

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