CN107583770B - Bag pulling device, control method thereof and bag turning centrifugal machine using bag pulling device - Google Patents
Bag pulling device, control method thereof and bag turning centrifugal machine using bag pulling device Download PDFInfo
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- CN107583770B CN107583770B CN201710649824.5A CN201710649824A CN107583770B CN 107583770 B CN107583770 B CN 107583770B CN 201710649824 A CN201710649824 A CN 201710649824A CN 107583770 B CN107583770 B CN 107583770B
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- 239000004744 fabric Substances 0.000 claims abstract description 24
- 230000004323 axial length Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 3
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
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Abstract
The invention discloses a bag pulling device, which comprises an outer shaft rotationally connected to a rack, wherein the front end of the outer shaft is connected with a rotary drum, the rear end of the outer shaft is sleeved with an outer driven wheel, the rack is connected with a main driving device for driving the outer driven wheel to rotate, an inner shaft is arranged in the outer shaft, the front end of the inner shaft is connected with a pushing plate, the rear part of the inner shaft is provided with an outer thread, an inner thread sleeve matched with the outer thread is sleeved on the inner shaft, the outer part of the inner thread sleeve is connected with a secondary driving device for driving the inner thread sleeve to rotate, an axially extending straight key groove and a spiral surrounding spiral groove are arranged on the outer wall of the inner shaft, a sliding key capable of sliding along the straight key groove and the spiral groove is fixedly arranged on the outer shaft, and the inner thread sleeve is rotationally connected with the outer shaft and axially fixed. Through the guide of the spiral groove to the inner shaft, the inner shaft moves relative to the axial direction of the outer shaft and simultaneously rotates relatively, so that the pushing plate rotates relative to the rotary drum, the filter cloth is twisted, the axial length of the filter cloth when being tightened is shortened, the integral stroke of the pushing plate is shortened, and the length of the inner shaft is shortened.
Description
Technical Field
The invention belongs to the technical field of centrifuges, and particularly relates to a bag pulling device, a control method thereof and a bag turning centrifuges using the bag pulling device.
Background
Since the advent of the bag turning centrifugal machine in 1998, the bag turning centrifugal machine has been introduced into China, and has the advantages of high cleanliness, no extrusion of materials in the unloading process and complete particles, and is touted by people in all areas, so that a few powerful manufacturers spend huge amounts of money for purchasing and using in China. The bag-turning centrifuge has many advantages, but has not been widely popularized and used. The high price is one of the main reasons, and the other is that the axial length of the inner shaft is too long in the structure. Because the axial length of the inner shaft is overlong, the requirement on manufacturing precision is high, the difficulty is high, the manufacturing cost is high, and the vibration of the whole centrifugal machine is easy to cause when the inner shaft rotates at a high speed.
Disclosure of Invention
The invention aims to solve the technical problems that: provided is a bag pulling device capable of shortening the length of an inner shaft.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a bag pulling device of bag turning centrifuge, includes the frame, rotates in the frame to be connected with tubular outer axle, and outer front end is connected with the rotary drum, and the rear end is fixed to be cup jointed outer follow driving wheel, be connected with the drive outer in the frame from driving wheel pivoted main drive arrangement, coaxial being provided with the inner axle in the outer, the outer outside of stretching out outer respectively in the both ends of inner axle, the inner axle front end is connected with the flitch that is located the rotary drum, is provided with the external screw thread on the outer wall of inner axle rear portion, and the inner screw thread sleeve's external connection has driven the interior screw thread sleeve pivoted auxiliary drive arrangement of external screw thread cooperation, is provided with axial extension's straight keyway and spiral surrounding helicine on the inner axle outer wall that is located the outer, the helicine links up in straight keyway's rear end and backward spiral extension, fixedly on the outer axle be provided with straight keyway and helicine gliding sliding key that matches just can follow, the outer rear end tip from the driving wheel is provided with the blind hole, blind hole and outer concentric, the interior screw thread sleeve front end inserts in the blind hole, through rotating with the outer axle and axial fixed connection from driving wheel.
As a preferable scheme, the length of the straight key groove is not less than the distance from the front end face of the pushing plate to the front end of the rotary drum and is not more than twice the distance.
As a preferable scheme, the main driving device comprises a main motor fixedly connected to the frame, an outer shaft driving wheel fixedly connected to the output shaft end of the main motor, and a main belt connecting the outer shaft driving wheel and the outer shaft driven wheel, and the auxiliary driving device comprises an inner shaft driven wheel fixedly connected to the outside of the inner thread sleeve, an auxiliary motor fixedly connected to the frame, an inner shaft driving wheel fixedly connected to the output shaft end of the auxiliary motor, and an auxiliary belt connecting the inner shaft driving wheel and the inner shaft driven wheel.
As a preferable scheme, a limiting plate is fixedly connected to the end face of the rear end of the inner shaft, and the diameter of the limiting plate is larger than that of the inner shaft.
The invention further solves the technical problems that: a method of controlling the above-described bag pulling apparatus is provided.
In order to solve the technical problems, the invention adopts the following technical scheme: the method for controlling the bag pulling by the bag pulling device is characterized by comprising the following steps:
1) Retracting the pushing plate: the rotating speed of the inner threaded sleeve is controlled to be lower than that of the driven wheel of the outer shaft, so that the inner shaft is driven by the outer shaft to rotate relative to the inner threaded sleeve, and the inner shaft is further driven by the sliding key and the straight key groove or the spiral groove to move axially backwards relative to the outer shaft due to the fact that the inner threaded sleeve is axially fixed relative to the outer shaft;
2) And (5) centrifuging: simultaneously starting the main motor and the auxiliary motor, keeping the speeds of the main motor and the auxiliary motor consistent, enabling the inner shaft and the outer shaft to synchronously rotate, keeping the positions of the pushing plate and the rotary drum unchanged, and realizing stable centrifugal operation;
3) And (3) unloading: the rotating speed of the inner threaded sleeve is controlled to be higher than that of the outer driven wheel, the inner shaft and the inner threaded sleeve rotate relatively, the inner shaft rotates synchronously with the outer shaft under the guidance of the straight key groove and the sliding key and moves forwards along the straight key groove, the pushing plate is pushed to move forwards, the pushing plate gradually pushes materials out of the rotary drum, after the sliding key slides into the spiral groove, the inner shaft moves forwards and simultaneously rotates relatively with the outer shaft, and then the pushing plate moves forwards and rotates relatively with the rotary drum.
The invention further solves the technical problems that: the bag turning centrifugal machine using the bag pulling device has the advantage of being short in inner shaft, so that the manufacturing cost of the bag turning centrifugal machine is effectively reduced, and meanwhile, the working stability of the bag turning centrifugal machine is improved.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a bag turning centrifuge, its characterized in that, including above-mentioned bag pulling device, still including cover outside the rotary drum and with frame fixed connection's discharge silo, be provided with an annular baffle on the discharge silo inner wall, annular baffle inward flange is relative but contactless with the rotary drum front end lateral wall, annular baffle is cut apart into the discharge chamber that is relative with the rotary drum with the discharge chamber that is located the rotary drum, the discharge chamber bottom is provided with the liquid outlet, the discharge chamber bottom is provided with the discharge gate, be connected with on the pushing plate through the connecting rod with rotary drum front end opening matched with drum lid, drum lid center is provided with the feed inlet, be connected with the cone cylindric passage way on the feed inlet, the large-mouth end and the feed inlet of passage way are connected, be provided with the through-hole concentric with the passage way on the through-hole, fixedly connected with inlet pipe on the through-hole, but contactless passage way is inserted in the passage way, be provided with filter cloth in the passage way, filter cloth in the rotary drum, filter cloth one end is connected with the rotary drum front end, the other end is connected with the pushing plate outer fringe.
The beneficial effects of the invention are as follows: through the guide of the spiral groove to the inner shaft, the inner shaft moves relative to the axial direction of the outer shaft and simultaneously rotates relatively, so that the pushing plate rotates relative to the rotary drum, the filter cloth is twisted, the axial length of the filter cloth when being tightened is shortened, the integral stroke of the pushing plate is shortened, and the length of the inner shaft is shortened.
In addition, according to the method for controlling the bag pulling device, the relative axial movement and the relative rotation of the inner shaft and the outer shaft are controlled by controlling the relative rotation of the inner shaft and the inner thread sleeve, so that the material pushing plate of the bag pulling device can rotate relative to the rotary drum during discharging, the filter cloth is twisted, and the technical aim of shortening the inner shaft is fulfilled.
Drawings
FIG. 1 is a schematic view of a drawstring apparatus of the present invention;
FIG. 2 is a schematic view of the inner shaft configuration of FIG. 1;
FIG. 3 is a schematic view of the structure of the inner shaft, outer shaft and stripper plate as it is pushed out;
fig. 4 is a bag-turning centrifuge according to the present invention.
In fig. 1 to 4: 1. the device comprises a frame, 2, an outer shaft, 3, a rotary drum, 4, a main driving device, 4-1, an outer shaft driven wheel, 4-1-1, a blind hole, 4-2, a main motor, 4-3, an outer shaft driving wheel, 4-4, a main belt, 5, an inner shaft, 6, a pushing plate, 7, an external thread, 8, an inner thread sleeve, 9, an auxiliary driving device, 9-1, an inner shaft driven wheel, 9-2, an auxiliary motor, 9-3, an inner shaft driving wheel, 9-4, an auxiliary belt, 10, a straight key groove, 11, a spiral groove, 12, a sliding key, 13, a bearing, 14, a limiting plate, 15, a discharging bin, 15-1, a discharging cavity, 15-2, a discharging cavity, 16, an annular partition plate, 17, a discharging port, 18, a discharging port, 19, a connecting rod, 20, a drum cover, 21, a feeding port, 22, a material guiding pipe, 23, a through hole, 24, a feeding pipe, 25 and filter cloth.
Detailed Description
The following describes in detail the embodiments of the present invention with reference to the drawings, for convenience and clarity of description, the front ends are the ends of the inner shaft 5 and the outer shaft 2 pointing to the drum on the right side of the drawings, and the rear end is the other end opposite to the front end.
The bag pulling device of the bag turning centrifugal machine shown in fig. 1-3 comprises a frame 1, a tubular outer shaft 2 is rotatably connected to the frame 1, a rotary drum 3 is connected to the front end of the outer shaft 2, an outer driven wheel 4-1 is fixedly sleeved at the rear end of the outer shaft, a main driving device 4 for driving the outer driven wheel 4-1 to rotate is connected to the frame 1, an inner shaft 5 is coaxially arranged in the outer shaft 2, two ends of the inner shaft 5 extend out of the outer shaft 2 respectively, a pushing plate 6 positioned in the rotary drum 3 is connected to the front end of the inner shaft 5, an external thread 7 is arranged on the outer wall of the rear portion of the inner shaft 5, an inner thread sleeve 8 which is in matched and screwed with the external thread 7 is sleeved at the rear end of the inner shaft 5, an auxiliary driving device 9 for driving the inner thread sleeve 8 to rotate is connected to the outer portion of the inner thread sleeve 8, and is characterized in that a straight key groove 10 extending in the axial direction and a spiral groove 11 which surrounds the outer shaft 5 are arranged on the outer wall of the outer shaft 2, the spiral groove 11 is connected to the rear end of the straight key groove 10 and extends in a rear spiral mode, the outer shaft 2 is fixedly provided with a blind hole 10 which is matched with the straight key groove 10 and the spiral key groove 11 and can be inserted into the outer shaft 1-1 through the end 4-1 and the blind hole 4-1 through the end which is connected to the inner shaft 1-1 through the blind hole 4-1.
As shown in fig. 3, the inner shaft 5 is guided by the spiral groove 11 to move axially relative to the outer shaft 2 and simultaneously rotate relatively, so that the pushing plate 6 rotates relative to the rotary drum 3, the filter cloth 25 is twisted, the axial length of the filter cloth 25 when being tightened is shortened, and the overall stroke of the pushing plate 6 is shortened, namely the length of the inner shaft 5 is shortened.
The length of the straight key groove 10 is not less than the distance from the front end face of the pushing plate 6 to the front end of the rotary drum 3, and is not more than twice the distance, and the pushing plate 6 rotates after pushing out the rotary drum 3, so that the clamping phenomenon can be avoided.
The main driving device 4 comprises a main motor 4-2 fixedly connected to the frame 1, an outer shaft driving wheel 4-3 fixedly connected to the output shaft end of the main motor 4-2, and a main belt 4-4 connected with the outer shaft driving wheel 4-3 and the outer shaft driven wheel 4-1, and the auxiliary driving device 9 comprises an inner shaft driven wheel 9-1 fixedly connected to the outside of the inner thread sleeve 8, an auxiliary motor 9-2 fixedly connected to the frame 1, an inner shaft driving wheel 9-3 fixedly connected to the output shaft end of the auxiliary motor 9-2, and an auxiliary belt 9-4 connected with the inner shaft driving wheel 9-3 and the inner shaft driven wheel 9-1.
In addition to the above transmission mode using belt transmission, gear transmission may be used, that is, the outer driven wheel 4-1 and the outer driving wheel 4-3 in the main driving device 4 are gears meshed with each other, and the inner driven wheel 9-1 and the inner driving wheel 9-3 in the auxiliary driving device 9 are gears meshed with each other.
The main driving device 4 and the auxiliary driving device 9 can also be hydraulic motors, the main driving device 4 drives the outer shaft driving wheel 4-3 through the hydraulic motors, the outer shaft driven wheel 4-1 is driven to rotate through the main belt 4-4, the auxiliary driving device 9 drives the inner shaft driving wheel 9-3 to rotate through the hydraulic motors, and the inner shaft driving wheel 9-3 drives the inner shaft driven wheel 9-1 to rotate through the auxiliary belt 9-4.
The limiting plate 14 is fixedly connected to the end face of the rear end of the inner shaft 5, and the diameter of the limiting plate 14 is larger than that of the inner shaft 5 so as to prevent the inner shaft 5 from being separated from the inner thread sleeve 8.
A control method for pulling bags by using the bag pulling device comprises the following steps:
1) Retracting the pushing plate: the rotating speed of the inner threaded sleeve 8 is controlled to be lower than the rotating speed of the outer driven wheel 4-1, so that the inner shaft 5 is driven by the outer shaft 2 to rotate relative to the inner threaded sleeve 8, and the inner shaft 5 is further driven by the movement of the inner shaft 5 to drive the pushing plate 6 to move backwards under the guidance of the sliding key 12 and the straight key groove 10 or the spiral groove 11 because the inner threaded sleeve 8 is axially fixed relative to the outer shaft 2;
2) And (5) centrifuging: simultaneously, the main motor 4-2 and the auxiliary motor 9-2 are started, the speeds of the main motor and the auxiliary motor are kept consistent, the inner shaft 5 and the outer shaft 2 synchronously rotate, the positions of the pushing plate 6 and the rotary drum 3 are kept unchanged, and stable centrifugal operation is realized;
3) And (3) unloading: the rotating speed of the inner threaded sleeve 8 is controlled to be higher than that of the outer driven wheel 4-1, so that the inner shaft 5 and the inner threaded sleeve 8 rotate relatively, the inner shaft 5 rotates synchronously with the outer shaft 2 and moves forwards along the straight key groove 10 under the guidance of the straight key groove 10 and the sliding key 12, the pushing plate 6 is pushed to move forwards, the pushing plate 6 gradually pushes materials out of the rotary drum 3, and when the sliding key 12 slides into the spiral groove 11, the inner shaft 5 moves forwards and rotates relatively with the outer shaft 2, and the pushing plate 6 moves forwards and rotates relative to the rotary drum 3.
According to the method for controlling the bag pulling device, the relative axial movement and the relative rotation of the inner shaft 5 and the outer shaft 2 are controlled by controlling the relative rotation of the inner shaft 5 and the inner thread sleeve 8, so that the material pushing plate 6 of the bag pulling device can rotate relative to the rotary drum 3 during discharging, the filter cloth 25 is twisted, and the technical aim of shortening the inner shaft is fulfilled.
The bag turning centrifuge shown in fig. 4 comprises the bag pulling device, and further comprises a discharging bin 15 covered outside the rotary drum 3 and fixedly connected with the frame 1, wherein an annular partition 16 is arranged on the inner wall of the discharging bin 15, the inner edge of the annular partition 16 is opposite to the outer side wall of the front end of the rotary drum 3 but is not contacted with the outer side wall of the rotary drum, the discharging bin 15 is divided into a liquid outlet cavity 15-1 opposite to the rotary drum 3 and a discharging cavity 15-2 positioned in front of the rotary drum 3 by the annular partition 16, a liquid outlet 17 is arranged at the bottom of the liquid outlet cavity 15-1, a discharge outlet 18 is arranged at the bottom of the liquid outlet cavity 15-2, a drum cover 20 matched with the front end opening of the rotary drum 3 is connected to the pushing plate 6 through a connecting rod 19, a feed inlet 21 is arranged in the center of the drum cover 20, a conical material guide pipe 22 is connected to the feed inlet 21, a large-mouth end of the material guide pipe 22 is connected with the feed inlet 21, a through hole 23 concentric with the material guide pipe 22 is arranged on the discharging bin 15, a feed pipe 24 is fixedly connected to the through hole 23, the feed pipe 24 is inserted into the material guide pipe 22 but is not contacted with the material guide 22, the inner side of the material guide pipe 25 is arranged in the rotary drum 3, and the other end is connected with the front end of the rotary drum 3 through the filter cloth 25.
When the pushing plate 6 pushes materials, as shown in fig. 3, the inner shaft 5 is guided by the spiral groove 11 to move axially relative to the outer shaft 2 and simultaneously rotate relatively, so that the pushing plate 6 rotates relative to the rotary drum 3, the filter cloth 25 is twisted, the axial length of the filter cloth 25 when being tightened is shortened, the overall stroke of the pushing plate 6 is shortened, and the length of the inner shaft 5 is shortened.
The working process of the invention is as follows: firstly, a filter cloth 25 is installed, one end of the filter cloth 25 is fixedly connected to one end of an opening of a rotary drum 3, the other end of the filter cloth is fixedly connected to the outer edge of a pushing plate 6, then a main motor 4-2 and an auxiliary motor 9-2 are started simultaneously, the rotating speed of an inner threaded sleeve 8 is controlled to be lower than that of an outer driven wheel 4-1, an inner shaft 5 is driven by the outer shaft 2 to rotate relative to the inner threaded sleeve 8, and the inner threaded sleeve 8 is axially fixed relative to the outer shaft 2, so that the inner shaft 5 is further axially and backwards moved relative to the outer shaft 2 under the guidance of a sliding key 12 and a straight key groove 10 or a spiral groove 11, and the pushing plate 6 is driven to be backwards moved by the movement of the inner shaft 5 until a drum cover 20 covers the opening end of the rotary drum 3;
simultaneously, the main motor 4-2 and the auxiliary motor 9-2 are started, the speeds of the main motor and the auxiliary motor are kept consistent, the inner shaft 5 and the outer shaft 2 synchronously rotate, the positions of the pushing plate 6 and the rotary drum 3 are kept unchanged, and stable centrifugal operation is realized;
finally, the rotating speed of the inner threaded sleeve 8 is controlled to be higher than that of the outer driven wheel 4-1, so that the inner shaft 5 and the inner threaded sleeve 8 rotate relatively, the inner shaft 5 rotates synchronously with the outer shaft 2 and moves forwards along the straight key groove 10 under the guidance of the straight key groove 10 and the sliding key 12, the pushing plate 6 and the drum cover 20 are pushed to move forwards, the pushing plate 6 gradually pushes materials out of the drum 3, when the sliding key 12 slides into the spiral groove 11, the inner shaft 5 moves forwards and rotates relatively with the outer shaft 2, the pushing plate 6 moves forwards and rotates relatively to the drum 3, so that the filter cloth 25 is driven to twist, and after the filter cloth 25 twists, the axial length of the inner shaft is reduced, so that the total stroke of the pushing plate 6 is reduced, and the length of the inner shaft 5 is shortened.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some of the applied embodiments, and are not intended to limit the invention; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present invention.
Claims (6)
1. The bag pulling device comprises a frame (1), a tubular outer shaft (2) is rotationally connected to the frame (1), a rotary drum (3) is connected to the front end of the outer shaft (2), an outer driven wheel (4-1) is fixedly sleeved at the rear end of the outer shaft, a main driving device (4) for driving the outer driven wheel (4-1) to rotate is connected to the frame (1), an inner shaft (5) is coaxially rotationally arranged in the outer shaft (2), two ends of the inner shaft (5) respectively extend out of the outer shaft (2), a pushing plate (6) positioned in the rotary drum (3) is connected to the front end of the inner shaft (5), an external thread (7) is arranged on the outer wall of the rear portion of the inner shaft (5), an inner thread sleeve (8) which is in screwed connection with the external thread (7) is sleeved at the rear end of the inner shaft (5), a secondary driving device (9) for driving the inner thread sleeve (8) to rotate is connected to the outer portion of the inner thread sleeve (8), the outer wall of the inner shaft (2) is characterized in that an axially extending straight key groove (10) and a spiral groove (11) which is spirally wound are arranged on the outer wall of the inner shaft (5) in the outer shaft (2) respectively, the novel rotary drum is characterized in that a sliding key (12) which is matched with the straight key groove (10) and the spiral groove (11) and can slide along the straight key groove (10) and the spiral groove (11) is fixedly arranged on the outer shaft (2), the inner shaft (5) is guided by the spiral groove (11) to axially move relative to the outer shaft (2) and simultaneously relatively rotate, the pushing plate (6) rotates relative to the rotary drum (3), the filter cloth (25) is twisted, the axial length of the filter cloth (25) when being tightened is shortened, a blind hole (4-1-1) is formed in the rear end of the driven wheel (4-1), the blind hole (4-1-1) is concentric with the outer shaft (2), and the front end of the inner threaded sleeve (8) is inserted into the blind hole (4-1-1) and is rotationally connected with the driven wheel (4-1) through a bearing (13) and axially fixed.
2. Bag pulling device according to claim 1, characterized in that the length of the straight key slot (10) is not less than the distance from the front end face of the stripper plate (6) to the front end of the drum (3) and not more than twice the distance.
3. The bag pulling device according to claim 1, wherein the main driving device (4) comprises a main motor (4-2) fixedly connected to the frame (1), an outer shaft driving wheel (4-3) fixedly connected to the output shaft end of the main motor (4-2), and a main belt (4-4) connecting the outer shaft driving wheel (4-3) and the outer shaft driven wheel (4-1), and the auxiliary driving device (9) comprises an inner shaft driven wheel (9-1) fixedly connected to the outside of the inner thread sleeve (8), an auxiliary motor (9-2) fixedly connected to the frame (1), an inner shaft driving wheel (9-3) fixedly connected to the output shaft end of the auxiliary motor (9-2), and an auxiliary belt (9-4) connecting the inner shaft driving wheel (9-3) and the inner shaft driven wheel (9-1).
4. The bag pulling device according to claim 1, wherein a limiting plate (14) is fixedly connected to the rear end face of the inner shaft (5), and the diameter of the limiting plate (14) is larger than that of the inner shaft (5).
5. A control method for bag pulling by the bag pulling device according to claim 3, comprising:
1) Retracting the pushing plate: the rotating speed of the internal thread sleeve (8) is controlled to be lower than that of the driven wheel (4-1) of the outer shaft, so that the inner shaft (5) is driven by the outer shaft (2) to rotate relative to the internal thread sleeve (8), and the inner shaft (5) is further driven by the movement of the inner shaft (5) to move backwards relative to the outer shaft (2) under the guidance of the sliding key (12) and the straight key groove (10) or the spiral groove (11) because the internal thread sleeve (8) is axially fixed relative to the outer shaft (2);
2) And (5) centrifuging: simultaneously, the main motor (4-2) and the auxiliary motor (9-2) are started, the speeds of the main motor and the auxiliary motor are kept consistent, the inner shaft (5) and the outer shaft (2) synchronously rotate, the positions of the pushing plate (6) and the rotary drum (3) are kept unchanged, and stable centrifugal operation is realized;
3) And (3) unloading: the rotating speed of the inner threaded sleeve (8) is controlled to be higher than that of the outer driven wheel (4-1), the inner shaft (5) and the inner threaded sleeve (8) rotate relatively, the inner shaft (5) rotates synchronously with the outer shaft (2) and moves forwards along the straight key groove (10) under the guidance of the straight key groove (10) and the sliding key (12), the pushing plate (6) is pushed to move forwards, the pushing plate (6) gradually pushes materials out of the rotary drum (3), when the sliding key (12) slides into the spiral groove (11), the inner shaft (5) moves forwards and rotates relatively with the outer shaft (2), and the pushing plate (6) rotates relative to the rotary drum (3) while moving forwards.
6. The bag turning centrifugal machine is characterized by comprising the bag pulling device as claimed in any one of claims 1-4, and further comprising a discharging bin (15) which is covered outside the rotary drum (3) and fixedly connected with the frame (1), wherein an annular partition plate (16) is arranged on the inner wall of the discharging bin (15), the inner edge of the annular partition plate (16) is opposite to the outer side wall of the front end of the rotary drum (3) but is not contacted with the outer side wall, the annular partition plate (16) divides the discharging bin (15) into a liquid outlet cavity (15-1) opposite to the rotary drum (3) and a discharging cavity (15-2) positioned in front of the rotary drum (3), a liquid outlet (17) is arranged at the bottom of the liquid outlet cavity (15-1), a discharge outlet (18) is arranged at the bottom of the discharging cavity (15-2), a drum cover (20) matched with the front end opening of the rotary drum (3) is connected with the pushing plate (6) through a connecting rod (19), a feeding port (21) is arranged at the center of the drum cover (20), a conical material guide pipe (22) is connected to the feeding port (21), a large port end of the material guide pipe (22) is connected with the feeding port (21), a material guide pipe (22) is connected with the feeding port (21), the material guide pipe (22) is not contacted with the feeding pipe (24), the feeding pipe (23) is fixedly arranged on the feeding pipe (24), a filter cloth (25) is arranged in the rotary drum (3), one end of the filter cloth (25) is connected with the front end of the rotary drum (3), and the other end is connected with the outer edge of the pushing plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649824.5A CN107583770B (en) | 2017-08-02 | 2017-08-02 | Bag pulling device, control method thereof and bag turning centrifugal machine using bag pulling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710649824.5A CN107583770B (en) | 2017-08-02 | 2017-08-02 | Bag pulling device, control method thereof and bag turning centrifugal machine using bag pulling device |
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| Publication Number | Publication Date |
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| CN107583770A CN107583770A (en) | 2018-01-16 |
| CN107583770B true CN107583770B (en) | 2024-01-09 |
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| CN108910601B (en) * | 2018-06-22 | 2020-08-25 | 安徽鹰龙工业设计有限公司 | Communication cable pay-off rack |
| CN110180686A (en) * | 2019-06-19 | 2019-08-30 | 张家港市中南化工机械有限公司 | A kind of cone bag centrifuge |
| CN115193597A (en) * | 2022-05-31 | 2022-10-18 | 苏州盛天力离心机制造有限公司 | Alternative pulling and twisting mechanism applied to bag pulling centrifuge |
| CN117181458B (en) * | 2023-11-06 | 2024-03-05 | 江苏赛德力制药机械制造有限公司 | Bag turning and discharging centrifugal machine |
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