Swing type granulator convenient to clean

Abstract

The utility model discloses a swing type granulator convenient to clean, 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, and is characterized in that a front supporting sleeve and a rear supporting sleeve which are respectively matched with a connecting shaft and a driving shaft at two ends of a powder scraping wheel are arranged on the hopper; isolation assemblies are arranged between the front supporting sleeve and the connecting shaft and between the rear supporting sleeve and the driving shaft, a front isolation cavity and a rear isolation cavity are formed in the positions, located on the outer sides of the isolation assemblies, of the front supporting sleeve and the rear supporting sleeve respectively, and the connecting shaft penetrates through the front supporting sleeve to be connected with a bearing seat fixed to the front supporting sleeve. The hopper has the advantages that by designing the structure of the supporting sleeve and the isolation assembly, lubricating oil of the bearing or oil of the oil tank is prevented from entering the hopper through the shaft, and pollution to materials is avoided; once oil enters the isolation cavity, the oil can flow out from the drain outlet and can be found in time, so that the oil can be maintained in time.

Description

Technical Field

[0001] The utility model belongs to the technical field of granulators, and in particular relates to a swing granulator which is easy to clean. 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 scraper wheel in the granulation unit to swing and rotate, and cooperates with the screen to achieve granulation.

[0003] After a long period of production, due to the aging of the seal ring of the scraper wheel bearing, the oil in the bearing or oil tank will enter the hopper through the shaft, causing pollution. In addition, there are problems such as inappropriate tilt angles, which cause the material falling through the hopper after granulation to scatter outside the receiving barrel and inconvenience in replacing the screen. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a swing-type granulator which is easy to clean. An isolation chamber is arranged between the hopper and the granulating part to avoid material contamination, and the hopper and the granulating part can be directly flushed; the discharge port of the hopper is offset outward by a certain distance and is in a trumpet shape that contracts downward to avoid leakage of the material; the support shaft adopts a non-fixed connection method to facilitate the replacement of the screen.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: an oscillating granulator that is easy to clean, comprising a frame, a hopper fixed on the frame, a granulating part arranged on the hopper and a driving part arranged on the frame, the key point being: a front support sleeve and a rear support sleeve are provided on the hopper, which are respectively matched with the connecting shaft and the driving shaft at both ends of the scraping wheel, an isolation assembly is provided between the front support sleeve and the connecting shaft, and between the rear support sleeve and the driving shaft, a front isolation chamber and a rear isolation chamber are respectively provided on the front support sleeve and the rear support sleeve and located on the outside of the isolation assembly, and the connecting shaft passes through the front support sleeve and is connected to the bearing seat fixed on the front support sleeve.

[0006] Furthermore, a front support boss extending toward the front isolation cavity is provided on the front support sleeve and located on the outer side of the through hole through which the connecting shaft passes. The isolation component is arranged between the front support boss and the connecting shaft, and the isolation component includes a copper ring and a pressure ring.

[0007] Furthermore, a rear support boss extending toward the rear isolation cavity is provided on the rear support sleeve and on the outer side of the through hole through which the drive shaft passes. The isolation assembly is arranged between the rear support boss and the drive shaft, and the isolation assembly includes a copper ring and a pressure ring.

[0008] Furthermore, a bearing and an oil seal are provided between the bearing seat and the connecting shaft.

[0009] Furthermore, a vent and a sewage outlet communicated with the front isolation cavity are provided on the front support sleeve.

[0010] Furthermore, a sewage drain groove is provided at the bottom of the rear support sleeve.

[0011] Furthermore, the discharge port at the bottom of the hopper is in the shape of a trumpet that contracts inwards.

[0012] Furthermore, the granulation section includes two scraping wheels, a screen, and a supporting shaft and two mounting shafts matched with the screen and the scraping wheels.

[0013] Furthermore, the powder scraping wheel includes a first mounting plate connected to the connecting shaft, a second mounting plate connected to the driving shaft, and a plurality of powder scraping sticks connected between the first mounting plate and the second mounting plate and uniformly arranged along the circumferential direction.

[0014] Furthermore, a limit pin is provided on the support shaft, and a key slot hole for the end of the support shaft and the limit pin to pass through, as well as a support hole for supporting the end of the support shaft, is provided on the hopper.

[0015] The beneficial effects of the utility model are: 1. By designing the structure of the support sleeve and the isolation component, the lubricating oil of the bearing or the oil in the oil tank is prevented from entering the hopper through the shaft, thereby avoiding contamination of the material; 2. Once oil enters the isolation chamber, it will flow out from the drain port and can be discovered in time for timely maintenance; 3. The limit pin is directly fixed on the support shaft to avoid deformation of the support shaft caused by welding and material accumulation at the weld, and the keyway hole and the support hole on the hopper are used to limit and support the support shaft on the hopper, so that quick disassembly and assembly are achieved to facilitate replacement of the screen; 4. The discharge port of the hopper is offset to the outside and is trumpet-shaped, which is convenient for the material to fall into the receiving bucket and prevent leakage.

[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 swing type granulator of the utility model;

[0018] Figure 2 yes Figure 1 Side view of

[0019] Figure 3 It is a three-dimensional diagram of the swing-type granulator of the utility model;

[0020] Figure 4 This is the installation structure diagram of the scraper wheel and hopper;

[0021] Figure 5 It is a schematic diagram of the structure of the hopper after removing the discharge part.

[0022] In the accompanying drawings, 1, frame, 2, hopper, 2-1, discharge port, 2-2, keyway hole, 2-3, support hole, 3, driving part, 3-1, driving shaft, 4, connecting shaft, 5, front support sleeve, 5-1, front isolation chamber, 5-2, front support boss, 5-3, cleaning port, 5-4, sewage outlet, 6, rear support sleeve, 6-1, rear isolation chamber, 6-2, rear support boss, 6-3, sewage trough, 7, bearing seat, 8, bearing, 9, oil seal, 10, copper ring, 11, scraper wheel, 11-1, first mounting plate, 11-2, second mounting plate, 11-3, scraper stick, 12, support shaft, 13, mounting shaft, 15, pressure ring. DETAILED DESCRIPTION

[0023] See attached Figure 1-5 The utility model provides a swing-type granulator, including a frame 1, a hopper 2 fixed on the frame 1, a granulating part arranged on the hopper 2, and a driving part 3 arranged on the frame 1. The key is that: a front support sleeve 5 and a rear support sleeve 6 are respectively provided on the hopper 2, which are matched with the connecting shaft 4 and the driving shaft 3-1 at both ends of the scraping wheel 11, and an isolation component is provided between the front support sleeve 5 and the connecting shaft 4, and between the rear support sleeve 6 and the driving shaft 3-1. A front isolation cavity 5-1 and a rear isolation cavity 6-1 are respectively provided on the front support sleeve 5 and the rear support sleeve 6 and located outside the isolation component. The connecting shaft 4 passes through the front support sleeve 5 and is connected to the bearing seat 7 fixed on the front support sleeve 5. Once the bearing and oil tank connected to the connecting shaft 4 or the driving shaft 3-1 have oil stains flowing out, they can only enter the isolation cavity of the support sleeve under the action of the isolation component to be discharged, and will not enter the hopper 2 to pollute the material.

[0024] See attached Figure 4 A front support boss 5-2 extending toward the front isolation cavity 5-1 is provided on the front support sleeve 5 and located on the outer side of the through hole through which the connecting shaft 4 passes, and an isolation assembly is arranged between the front support boss 5-2 and the connecting shaft 4. A rear support boss 6-2 extending toward the rear isolation cavity 6-1 is provided on the rear support sleeve 6 and located on the outer side of the through hole through which the drive shaft 3-1 passes, and an isolation assembly is arranged between the rear support boss 6-2 and the drive shaft 3-1. The above-mentioned isolation assemblies all include a copper ring 10 and a pressure ring 15. The function of the copper ring 10 is to prevent oil from entering the hopper through the gap between the support sleeve and the shaft, and also to prevent material from leaking out from the gap between the support sleeve and the shaft. The function of the pressure ring 15 is to prevent the copper ring 10 from escaping from the front support boss 5-2 or the rear support boss 6-2.

[0025] A bearing 8 and an oil seal 9 are provided between the bearing seat 7 and the connecting shaft 4. The oil seal 9 can prevent the lubricating oil from leaking out from the bearing seat 7.

[0026] Since the bearing seat 7 is installed on the front support sleeve 5, a vent 5-3 and a sewage outlet 5-4 communicating with the front isolation chamber 5-1 are opened on the front support sleeve 5.

[0027] Since the driving shaft 3 - 1 is the output shaft of the driving unit 3 , a drain groove 6 - 3 is provided at the bottom of the rear support sleeve 6 .

[0028] See attached Figure 1 The discharge port 2-1 at the bottom of the hopper 2 is in the shape of a trumpet that contracts inward and is offset to the outside by a certain distance to avoid the situation in which the material is scattered outside the receiving barrel during the production process.

[0029] See attached Figure 3-5 The above-mentioned granulation part includes two scraping wheels 11, a screen (not shown in the figure), a support shaft 12 and two mounting shafts 13 matched with the screen and the scraping wheel 11. A ratchet is provided on the mounting shaft 13, and a pawl matched with the ratchet is provided on the hopper 2, and the screen is adjusted by the cooperation of the two. A limit pin is provided on the support shaft 12, and the limit pin is threadedly connected with the support shaft 12 to prevent the heat input during welding from deforming the support shaft 12. A key slot hole 2-2 for the end of the support shaft 12 and the limit pin to pass through, and a support hole 2-3 for supporting the end of the above-mentioned support shaft 12 are provided on the hopper 2. After one end of the support shaft 12 is inserted into the hopper 2 and is limited and supported by the support hole 2-3, the support shaft 12 is rotated at a certain angle, so that the inner end of the support shaft 12 can be prevented from detaching from the support hole 2-3 under the action of the limit pin.

[0030] Since two scraping wheels 11 are provided, the driving part 3 has two corresponding driving shafts 3-1, and the two driving shafts 3-1 rotate synchronously and in the same direction. The driving part 3 is provided with a reduction assembly driven by a driving motor (such as a worm gear assembly, a parallel axis gear assembly and other reduction assembly), a rack hinged on the worm wheel or gear to form a crank structure and meshing with a driving gear on one of the two driving shafts 3-1. Gears are provided on the two driving shafts 3-1, and an intermediate wheel is provided between the two gears to achieve synchronous rotation in the same direction under the drive of one rack.

[0031] See attached Figure 4 The scraping wheel 11 includes a first mounting plate 11-1 connected to the connecting shaft 4, a second mounting plate 11-2 connected to the driving shaft 3-1, and a plurality of scraping rollers 11-3 connected between the first mounting plate 11-1 and the second mounting plate 11-2 and uniformly arranged along the circumferential direction.

[0032] The working process of the swing granulator of the utility model is as follows: under the drive of the driving part 3, the two driving shafts 3-1 respectively drive the corresponding scraping wheels 11 to rotate synchronously in the same direction. The scraping wheels 11 cooperate with the screen to granulate the material in the hopper 2. After granulation, the material falls into the receiving barrel below through the discharge port 2-1 in real time.

[0033] When another material needs to be pelletized and the pelletizer needs to be cleaned, the inside and outside of the pelletizing part need to be fully cleaned. Part of the cleaning water will enter the isolation chamber through the gap between the shaft and the front and rear support sleeves and be discharged from the drain port or drain tank.

[0034] 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. An easy-to-clean 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 (3) arranged on the frame (1), characterized in that: The hopper (2) is provided with a front support sleeve (5) and a rear support sleeve (6) which are matched with the connecting shaft (4) and the driving shaft (3-1) at both ends of the scraping wheel (11), respectively; an isolation assembly is provided between the front support sleeve (5) and the connecting shaft (4), and between the rear support sleeve (6) and the driving shaft (3-1); a front isolation cavity (5-1) and a rear isolation cavity (6-1) are provided on the front support sleeve (5) and the rear support sleeve (6) and are located outside the isolation assembly, respectively; the connecting shaft (4) passes through the front support sleeve (5) and is connected to a bearing seat (7) fixed on the front support sleeve (5).

2. The easy-to-clean oscillating granulator according to claim 1, characterized in that: A front support boss (5-2) extending toward the front isolation cavity (5-1) is provided on the front support sleeve (5) and located on the outer side of the through hole through which the connecting shaft (4) passes. The isolation component is arranged between the front support boss (5-2) and the connecting shaft (4). The isolation component comprises a copper ring (10) and a pressure ring (15).

3. The easy-to-clean oscillating granulator according to claim 1, characterized in that: A rear support boss (6-2) extending toward the rear isolation cavity (6-1) is provided on the rear support sleeve (6) and at the outer side of the through hole through which the drive shaft (3-1) passes. The isolation component is arranged between the rear support boss (6-2) and the drive shaft (3-1). The isolation component comprises a copper ring (10) and a pressure ring (15).

4. The easy-to-clean oscillating granulator according to claim 1, characterized in that: A bearing (8) and an oil seal (9) are provided between the bearing seat (7) and the connecting shaft (4).

5. The easy-to-clean oscillating granulator according to claim 1, characterized in that: The front support sleeve (5) is provided with a vent (5-3) and a sewage outlet (5-4) which are in communication with the front isolation chamber (5-1).

6. The easy-to-clean oscillating granulator according to claim 1, characterized in that: A sewage drain groove (6-3) is provided at the bottom of the rear support sleeve (6).

7. The easy-to-clean oscillating granulator according to claim 1, characterized in that: The discharge port (2-1) at the bottom of the hopper (2) is in the shape of a trumpet that contracts inwards.

8. The easy-to-clean oscillating granulator according to any one of claims 1 to 7, characterized in that: The granulation section comprises two scraping wheels (11), a screen, and a support shaft (12) and two mounting shafts (13) matched with the screen and the scraping wheels (11).

9. The easy-to-clean oscillating granulator according to claim 8, characterized in that: The powder scraping wheel (11) comprises a first mounting plate (11-1) connected to the connecting shaft (4), a second mounting plate (11-2) connected to the driving shaft (3-1), and a plurality of powder scraping sticks (11-3) connected between the first mounting plate (11-1) and the second mounting plate (11-2) and uniformly arranged along the circumferential direction.

10. The easy-to-clean oscillating granulator according to claim 8, characterized in that: A limit pin is provided on the support shaft (12), and a key slot hole (2-2) for the end of the support shaft (12) and the limit pin to pass through, and a support hole (2-3) for supporting the end of the support shaft (12) are provided on the hopper (2).

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