Large-torque reciprocating granulator

Abstract

The utility model relates to the technical field of pelletizers, and discloses a large-torque reciprocating pelletizer which comprises a pelletizing part mechanism, a driving part mechanism, a first-stage speed reduction device, a second-stage speed reduction device and a driving device. The granulation part mechanism is connected with the output end of the driving part mechanism, the driving end of the driving device is connected with the input end of the first-stage speed reducer, the output end of the first-stage speed reducer is connected with the input end of the second-stage speed reducer, and the output end of the second-stage speed reducer is connected with the input end of the driving part mechanism. The first-stage speed reduction device and the second-stage speed reduction device are installed outside the driving part mechanism and are both externally reinforced, installed and fixed, assemblies or parts are convenient to maintain and replace, and heat dissipation is facilitated; the first-stage reduction gear drives the second-stage reduction gear, the second-stage reduction gear and the rack transmission shaft adopt a load-carrying crankshaft transmission mode, front and back parts are positioned by rotary connecting pieces, and the device is not eccentric, resistant to impact and suitable for traditional Chinese medicine or continuous production.

Description

TECHNICAL FIELD

[0001] The utility model relates to pelletizer technical field, specifically to a big torque reciprocating pelletizer. BACKGROUND

[0002] Reciprocating pelletizer is a kind of key equipment widely used in pharmaceutical, chemical, food and plastic processing industries.The main function of reciprocating pelletizer is to make powder or granular material into a certain shape and size of granules by compression molding.In the pharmaceutical industry, it is used to ensure the quality and stability of drugs.

[0003] When working for a long time, the driving worm rotates at high speed and meshes with the worm gear to generate friction, producing ultra-high temperature (about 70~80℃ of machine body), and the drive part reduction device is inconvenient to maintain in the main body.Long time work, rack and fixed rear contact type rack slide up and down high temperature, easy to jam, unable to rotate and damage the equipment.

[0004] In order to solve the above problems, we propose a big torque reciprocating pelletizer. SUMMARY

[0005] The utility model discloses a big torque reciprocating pelletizer to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a big torque reciprocating pelletizer, including pelletizing mechanism, drive mechanism, first stage reduction gear, second stage reduction gear and drive device;

[0007] The output end of the drive mechanism is connected with the pelletizing mechanism;The input end of the first stage reduction gear is connected with the drive end of the drive device;The output end of the first stage reduction gear is connected with the input end of the second stage reduction gear;The input end of the drive mechanism is connected with the output end of the second stage reduction gear.

[0008] Preferably, it further includes a shell;The drive mechanism and the drive device are arranged in the shell.

[0009] Preferably, the pelletizing mechanism includes a granulator and a fixed screen;One end surface of the granulator is connected with the output end of the drive mechanism;The fixed screen is detachably connected with the bottom of the granulator.

[0010] Preferably, the side wall of the granulator is provided with a spline groove, and the output end of the drive mechanism is connected with the spline groove of the granulator through spline.

[0011] Preferably, the drive mechanism includes a load crankshaft, a crank connecting rod, a rotary connecting piece, a gear shaft, a rack and a fixed rear mechanism;

[0012] The load crankshaft is connected to the inner wall of the shell through one of the rotating connecting members at each end, one end of the connecting rod is rotatably connected to the load crankshaft, the other end of the connecting rod is rotatably connected to the fixed rear gear mechanism, the fixed rear gear mechanism is sleeved on the gear shaft, the fixed rear gear mechanism and the gear shaft are provided with the rack, the rack is engaged with the gear shaft, one end of the gear shaft is rotatably connected to the inner wall of the shell, and the other end of the gear shaft is connected to the granulating mechanism.

[0013] Preferably, the load crankshaft comprises a crankshaft journal, a first crank, a second crank and a main shaft, one end of the main shaft is connected to the inner wall of the shell through one of the rotating connecting members, the other end of the main shaft is connected to one side of the first crank, the other side of the first crank is connected to one side of the second crank through the crankshaft journal, the other side of the second crank is connected to the inner wall of the shell through the other rotating connecting member, and one end of the connecting rod is rotatably connected to the crankshaft journal.

[0014] Preferably, the first-stage speed reduction device comprises an input driving pulley, a V-belt, an output driven pulley, an input small helical shaft and an output large helical gear.

[0015] The driving end of the driving device is connected to the input driving pulley, the input driving pulley is connected to the output driven pulley through the V-belt, the output driven pulley is connected to the input small helical shaft, the input small helical shaft is connected to the output large helical gear, and the output large helical gear is connected to the input end of the second-stage speed reduction device.

[0016] Preferably, the second-stage speed reduction device comprises an output spiral bevel gear and an input spiral bevel shaft, the output spiral bevel gear is sleeved on the load crankshaft, one end of the input spiral bevel shaft away from the bevel gear is connected to the output large helical gear, and the bevel gear end of the input spiral bevel shaft is engaged with the output spiral bevel gear.

[0017] Compared with the prior art, the large-torque reciprocating granulator has the advantages that

[0018] 1. The driving part mechanism of the application is externally provided with a first-stage speed reduction device and a second-stage speed reduction device, which are externally fixed to facilitate maintenance and replacement of the assembly or parts and facilitate heat dissipation; the first-stage speed reduction device drives the second-stage speed reduction device, the second-stage speed reduction device and the rack transmission shaft adopt a load crankshaft transmission mode, and rotating connecting members are positioned in front and back, are not eccentric, are impact-resistant and are suitable for traditional Chinese medicine or continuous production.

[0019] 2. The spline groove is adopted to connect the granulator and the gear shaft, the torsional strength is high, installation is quick, and the user can conveniently disassemble, assemble and clean.

[0020] 3. The granulator adopts solid triangular strips, and has the characteristics of flatness, non-deformation and wear resistance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of a front view cross section of the structure of the present application.

[0022] Figure 2 It is a schematic diagram of a left view cross section of the structure of the present application.

[0023] Figure 3 It is a schematic diagram of a top view cross section of the structure of the present application.

[0024] Figure 4 It is a schematic diagram of the connection of the gear shaft, the rack and the fixed backstop mechanism in the structure of the present application.

[0025] Figure 5 It is a right view of the granulator in the structure of the present application.

[0026] In the figure: 1 - granulation part mechanism, 11 - granulator, 12 - fixed screen;

[0027] 2 - driving part mechanism, 21 - heavy-duty crankshaft, 211 - crankshaft journal, 212 - first crank, 213 - second crank, 214 - main shaft, 22 - crank connecting rod, 23 - rotary connecting piece, 24 - gear shaft, 25 - rack, 26 - fixed backstop mechanism;

[0028] 3 - first stage speed reducer, 31 - input driving pulley, 32 - triangular belt, 33 - output driven pulley, 34 - input small helical shaft, 35 - output large helical gear;

[0029] 4 - second stage speed reducer, 41 - output spiral bevel gear, 42 - input spiral bevel shaft, 5 - driving device. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The utility model provides a technical scheme: a big torque reciprocating granulator, including granulating part mechanism 1, drive part mechanism 2, first stage speed reducer 3, second stage speed reducer 4 and drive device 5.

[0032] The granulating part mechanism 1 is connected to the output end of the drive part mechanism 2, the drive device 5 drive end is connected to the input end of the first stage speed reducer 3, the output end of the first stage speed reducer 3 is connected to the input end of the second stage speed reducer 4, and the output end of the second stage speed reducer 4 is connected to the input end of the drive part mechanism 2.

[0033] Further, the drive part mechanism 2 and the drive device 5 are arranged in the shell.

[0034] Further, the granulating part mechanism 1 includes a granulator 11 and a fixed screen 12, one end of the granulator 11 is connected to the output end of the drive part mechanism 2, and the fixed screen 12 is detachably connected to the bottom of the granulator 11. The drive part mechanism 2 drives the granulator 11 and the fixed screen 12 to form a rotary extrusion working state, that is, a mode of scraping and rubbing wet materials, so as to achieve the purpose of uniform granulation. In the application, the granulator 11 is measured and calculated to be 375.22 ° in the clockwise and counterclockwise directions.

[0035] Further, as shown in the drawing, Figure 5 The output end of the drive part mechanism 2 is connected to the spline groove of the granulator 11 by spline. In the application, the granulator 11 is made of rolled steel and is made of SUS321, which is flat, non-deformable and wear-resistant.

[0036] Further, the drive part mechanism 2 includes a heavy-duty crankshaft 21, a crank connecting rod 22, a rotating connecting piece 23, a gear shaft 24, a rack 25 and a fixed rear gear mechanism 26.

[0037] The heavy-duty crankshaft 21 is connected to the heavy-duty crankshaft 21 at both ends, and the heavy-duty crankshaft 21 is connected to the inner wall of the shell through one rotating connecting piece 23, one end of the crank connecting rod 22 is rotatably connected to the heavy-duty crankshaft 21, the other end of the crank connecting rod 22 is rotatably connected to the fixed rear gear mechanism 26, the fixed rear gear mechanism 26 is sleeved on the gear shaft 24, the fixed rear gear mechanism 26 and the gear shaft 24 are provided with the rack 25, the rack 25 is engaged with the gear shaft 24, one end of the gear shaft 24 is rotatably connected to the inner wall of the shell, and the other end of the gear shaft 24 is connected to the granulating part mechanism 1.

[0038] The rotating connecting piece 23 adopts a heavy load bearing in the application, which is a bearing for bearing large load and high speed, and has the characteristics of strong load capacity, good wear resistance, strong fatigue resistance, long service life and the like.

[0039] In the application, the driving part mechanism 2 is designed as a new type of external installation two-stage heavy load helical gear deceleration device and spiral bevel gear deceleration device; each shell is reinforced by high-strength steel welding, the rack 25 is increased, and the modulus m=5 of the gear shaft 24 is increased to enhance the torque, which can bear heavy load and has strong impact resistance for a long time, and is suitable for high-viscosity materials. The driving part mechanism 2 does not generate high heat, the temperature is 25℃~40℃, the operation is stable, and the noise is not greater than 45dB.

[0040] Further, the load-bearing crankshaft 21 includes a crankshaft journal 211, a first crank 212, a second crank 213, and a main shaft 214, one end of the main shaft 214 is connected to the inner wall of the shell through one of the rotating connecting pieces 23, the other end of the main shaft 214 is connected to one side of the second crank 213, the other side of the second crank 213 is connected to one side of the second crank 213 through the crankshaft journal 211, the other side of the second crank 213 is connected to the inner wall of the shell through the other rotating connecting piece 23, and one end of the crank connecting rod 22 is rotatably connected to the crankshaft journal 211.

[0041] Further, the first-stage deceleration device 3 includes an input driving pulley 31, a triangular belt 32, an output driven pulley 33, an input small helical shaft 34, and an output large helical gear 35.

[0042] The driving device 5 is connected to the input driving pulley 31, the input driving pulley 31 is connected to the output driven pulley 33 through the triangular belt 32, the output driven pulley 33 is connected to the input small helical shaft 34, the input small helical shaft 34 is connected to the output large helical gear 35, and the output large helical gear 35 is connected to the input end of the two-stage deceleration device 4.

[0043] Further, the second-stage deceleration device 4 includes an output spiral bevel gear 41 and an input spiral bevel shaft 42, the output spiral bevel gear 41 is sleeved on the load-bearing crankshaft 21, the input spiral bevel shaft 42 is connected to the output large helical gear 35 away from the umbrella tooth end, and the umbrella tooth end of the input spiral bevel shaft 42 is engaged with the output spiral bevel gear 41.

[0044] The first stage speed reducer 3 and the second stage speed reducer 4 are externally installed on the driving part mechanism 2, are externally reinforced and fixed, are convenient for maintenance and replacement of the assembly or parts, and are beneficial to heat dissipation; the first stage speed reducer 3 drives the second stage speed reducer 4; the second stage speed reducer 4 is driven by the load-bearing crankshaft 21, is positioned by the rotating connecting pieces 23 in front and back, the rotating connecting pieces 23 are heavy load bearings, are not eccentric, are impact-resistant, and are suitable for traditional Chinese medicine or continuous production.

[0045] Working principle:

[0046] The driving device 5 is turned on to drive the input driving pulley 31, the input driving pulley 31 drives the output driven pulley 33 through the triangular belt 32, and the output driven pulley 33 drives the input small helical gear shaft 34 and the output large helical gear 35.

[0047] The output large helical gear 35 drives the input spiral bevel shaft 42 to rotate, the input spiral bevel shaft 42 drives the meshed output spiral bevel gear 41 to rotate, that is, the first stage speed reducer 3 drives the second stage speed reducer 4.

[0048] The output spiral bevel gear 41 drives the load-bearing crankshaft 21 to rotate, the load-bearing crankshaft 21 drives the crank connecting rod 22, and further drives the rack 25 in the fixed rear gear mechanism 26 to reciprocate, so that the gear shaft 24 rotates clockwise or counterclockwise, and further drives the granulator 11 to rotate, the granulator 11 and the fixed screen 12 form a rotating extrusion working state, so that the purpose of uniform granulation is achieved.

[0049] The driving device 5 can be selected according to the type and material properties, and can be selected as a 5.5kw or 7.5kw or 11kw-6P motor, which is mainly suitable for traditional Chinese medicine and continuous production.

[0050] The rotating speed of the load-bearing crankshaft 21 is 45r / min~55r / min.

[0051] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

[0052] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A large torque reciprocating granulator characterised in that, The granulating part mechanism (1), the driving part mechanism (2), the first-stage speed reducer (3), the second-stage speed reducer (4) and the driving device (5) are connected in series. The granulating part mechanism (1) is connected to the output end of the driving part mechanism (2); the driving end of the driving device (5) is connected to the input end of the first-stage speed reducer (3); the output end of the first-stage speed reducer (3) is connected to the input end of the second-stage speed reducer (4); and the output end of the second-stage speed reducer (4) is connected to the input end of the driving part mechanism (2).

2. A large torque reciprocating granulator as claimed in claim 1, wherein, The driving part mechanism (2) and the driving device (5) are arranged in the shell.

3. A large torque reciprocating granulator as claimed in claim 1, wherein, The granulating part mechanism (1) comprises a granulator (11) and a fixed screen (12); one end surface of the granulator (11) is connected to the output end of the driving part mechanism (2); and the fixed screen (12) is detachably connected to the bottom of the granulator (11).

4. A large torque reciprocating granulator as claimed in claim 3, wherein, The side wall of the granulator (11) is provided with a spline groove, and the output end of the driving part mechanism (2) is connected to the spline groove of the granulator (11) through the spline.

5. A large torque reciprocating granulator as claimed in claim 2, wherein, The driving part mechanism (2) comprises a load-bearing crankshaft (21), a crank connecting rod (22), a rotating connecting piece (23), a gear shaft (24), a rack (25) and a fixed rear stop mechanism (26). The load-bearing crankshaft (21) is connected to the load-bearing crankshaft (21) at two ends, and each end is connected to the inner wall of the shell through one rotating connecting piece (23); one end of the crank connecting rod (22) is rotatably connected to the load-bearing crankshaft (21); the other end of the crank connecting rod (22) is rotatably connected to the fixed rear stop mechanism (26); the fixed rear stop mechanism (26) is sleeved on the gear shaft (24); the fixed rear stop mechanism (26) and the gear shaft (24) are provided with the rack (25); the rack (25) is engaged with the gear shaft (24); one end of the gear shaft (24) is rotatably connected to the inner wall of the shell; the other end of the gear shaft (24) is connected to the granulating part mechanism (1).

6. A large torque reciprocating pellet mill according to claim 5, characterized in that, The load-bearing crankshaft (21) comprises a crankshaft journal (211), a first crank (212), a second crank (213) and a main shaft (214); one end of the main shaft (214) is connected to the inner wall of the shell through one of the rotating connecting pieces (23); the other end of the main shaft (214) is connected to one side surface of the second crank (213); the other side surface of the second crank (213) is connected to one side surface of the second crank (213) through the crankshaft journal (211); the other side surface of the second crank (213) is connected to the inner wall of the shell through the other rotating connecting piece (23); one end of the crank connecting rod (22) is rotatably connected to the crankshaft journal (211).

7. A large torque reciprocating pellet mill according to claim 6, characterized in that The first-stage speed reducer (3) comprises an input driving pulley (31), a triangular belt (32), an output driven pulley (33), an input small helical shaft (34) and an output large helical gear (35). The driving device (5) drives the input active pulley (31); the input active pulley (31) is connected with the output passive pulley (33) through the triangular belt (32); the output passive pulley (33) is connected with the input small helical gear shaft (34); the input small helical gear shaft (34) is connected with the output large helical gear (35); the output large helical gear (35) is connected with the input end of the secondary reduction device (4).

8. A large torque reciprocating granulator as claimed in claim 7, characterised in that, The secondary reduction device (4) comprises an output spiral bevel gear (41) and an input spiral bevel gear shaft (42); the output spiral bevel gear (41) is sleeved on the load crankshaft (21); the input spiral bevel gear shaft (42) is connected with the output large helical gear (35) at the end away from the bevel gear; the bevel gear end of the input spiral bevel gear shaft (42) is engaged with the output spiral bevel gear (41).

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