CN212576424U - Grinding roller and grinding ring gap adjusting device - Google Patents
Grinding roller and grinding ring gap adjusting device Download PDFInfo
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- CN212576424U CN212576424U CN202021018250.5U CN202021018250U CN212576424U CN 212576424 U CN212576424 U CN 212576424U CN 202021018250 U CN202021018250 U CN 202021018250U CN 212576424 U CN212576424 U CN 212576424U
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Abstract
The utility model discloses a grinding roller and grinding ring clearance adjustment device, including the grinding roller gallows, adjust the base and adjust the pole, adjust the base configuration on the grinding roller gallows, adjust the pole and adjust linear motion relatively between the base, the tip that should adjust the pole pastes tightly with the grinding roller assembly. The gap adjusting device for the grinding roller and the grinding ring provided by the utility model can realize the adjustment of the gap between the grinding roller and the grinding ring, and always keep the optimal gap between the grinding roller and the grinding ring, thereby realizing the maximization of the working efficiency of equipment; meanwhile, the grinding roller and the grinding ring are not contacted with each other after adjustment, so that the damage to equipment and noise pollution caused by direct impact are avoided. The adjustment of the gap between the grinding roller and the grinding ring can be realized through sensor distance measurement and the driving of a servo motor.
Description
Technical Field
The utility model belongs to the technical field of the overhang roll formula milling machine, concretely relates to grinding roller and grinding ring clearance adjustment device.
Background
When the traditional suspension roller type pulverizer grinds powder, the grinding roller and the grinding ring are in fixed contact, and the grinding roller and the grinding ring are in mutual contact to cause vibration in the operation process of equipment so as to generate noise, thereby not only causing noise pollution, but also having great harmfulness to a grinding roller assembly and the equipment; simultaneously, after equipment used for a long time, along with wearing and tearing and consumption of grinding ring grinding roller, clearance between the two can increase gradually, and this not only greatly reduced equipment work efficiency, can cause harmful effects to the quality of powder product moreover.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art: when the pulverizer equipment operates, the grinding rings of the grinding rollers which are contacted with each other vibrate, so that the pulverizer equipment is greatly damaged, and noise pollution is brought; the grinding roller grinding ring is used as a main quick-wear part, and after long-time abrasion, the gap between the grinding roller grinding ring and the grinding roller grinding ring is gradually increased, so that the grinding efficiency is reduced to a great extent. The utility model aims at providing a grinding roller and grinding ring clearance adjustment device.
The purpose of the utility model is realized through the following technical scheme.
A gap adjusting device for a grinding roller and a grinding ring comprises a grinding roller hanger, an adjusting base and an adjusting rod;
the adjusting base is arranged on the grinding roller hanger;
the adjusting rod and the adjusting base can move linearly relatively, and the end part of the adjusting rod is tightly attached to the grinding roller assembly.
The adjusting rod is arranged on the adjusting base in a threaded connection mode and is a threaded screw rod.
Further comprising:
a machine seat is arranged on the machine seat,
a machine shell fixedly connected with the machine base,
a servo motor in transmission connection with the adjusting rod,
a gap sensor arranged on the machine shell, wherein the gap sensor corresponds to a gap between the grinding roller and the grinding ring; and
and the controller is electrically connected with the servo motor and the gap sensor.
The controller is powered by an external power supply, the controller is a PLC, and the external power supply is a battery.
Further comprising:
a bearing seat arranged on the machine seat,
a central shaft rotatably arranged on the bearing housing, on which central shaft the grinding roller hanger is arranged, and
a grinding roller assembly arranged on the grinding roller hanger in a hinged mode.
The machine base is provided with a scraper knife which is arranged below the grinding roller assembly, and the scraper knife is in transmission connection with the central shaft.
The utility model has the advantages that: the gap adjusting device for the grinding roller and the grinding ring provided by the utility model can realize the adjustment of the gap between the grinding roller and the grinding ring, and always keep the optimal gap between the grinding roller and the grinding ring, thereby realizing the maximization of the working efficiency of equipment; meanwhile, the grinding roller and the grinding ring are not contacted with each other after adjustment, so that the damage to equipment and noise pollution caused by direct impact are avoided. The adjustment of the gap between the grinding roller and the grinding ring can be realized through sensor distance measurement and the driving of a servo motor.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the grinding roller swinging extrusion grinding ring of the present invention.
In the figure, 10 is a machine base, 11 is a machine shell, 12 is a bearing seat, 13 is a central shaft, 14 is a grinding roller hanger, 15 is a grinding roller assembly, 16 is a grinding roller, 17 is a grinding ring, 18 is a scraper, 19 is a cross arm shaft, 110 is a scraper cylinder, 20 is an adjusting base, 21 is an adjusting rod, 22 is a servo motor, 23 is a gap sensor, 24 is a controller, and 25 is an external power supply.
Detailed Description
The technical solution of the present invention will be described and explained in detail with reference to fig. 1-2.
Fig. 1 shows a schematic structural diagram of the present invention, and it should be noted that the schematic structural diagram is a schematic plan view; fig. 2 shows the utility model discloses the enlarged schematic diagram of grinding roller swing extrusion grinding ring, and the clearance value of grinding roller and grinding ring is defined to "L" that shows in fig. 2, and it needs to explain that this clearance value "L" is only for the understanding that makes things convenient for the technical staff more clear the utility model discloses a technical scheme is not right the utility model discloses technical scheme's injecing.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "disposed," and "configured" are to be interpreted broadly, and may be, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed, and the specific meaning of the terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 shows the structure diagram of the present invention, fig. 2 shows the enlarged schematic diagram of the grinding roller swinging extrusion grinding ring of the present invention, fig. 1 and fig. 2 specifically show the frame 10, the housing 11, the bearing seat 12, the central shaft 13, the grinding roller hanger 14, the grinding roller assembly 15, the grinding roller 16, the grinding ring 17, the scraper knife 18, the cross-arm shaft 19, the scraper knife cylinder 110, the adjusting base 20, the adjusting rod 21, the servo motor 22, the gap sensor 23, the controller 24 and the external power supply 25. The housing of the flour mill is composed of a base 10, a housing 11, and a bearing seat 12, the housing 11 is fixedly connected to the base 10, the bearing seat 12 is fixedly disposed on the base 10, and a central shaft 13 is rotatably disposed on the bearing seat 12. it should be noted that the central shaft 13 is connected to the bearing seat 12 through a bearing or a slewing bearing, the rotation of the central shaft 13 is driven by an external power mechanism of the flour mill, and the external power mechanism is in transmission connection with the central shaft 13 through a transmission connection mechanism such as a pulley or a gear. The above-mentioned bearings or slewing bearings, external power means, pulleys or gears are not shown in the figures.
A grinding roller hanger 14 is arranged at the top end of the central shaft 13, the grinding roller hanger 14 is also called a plum blossom stand, the grinding roller hanger 14 is a component for connecting the central shaft 13 and a grinding roller assembly 15, and the grinding roller assembly 15 is arranged on the grinding roller hanger 14 in a hinged mode; the upper part of the grinding roller assembly 15 is hinged with a grinding roller hanger 14 through a cross arm shaft 19, a grinding roller 16 is arranged at the lower end of the grinding roller assembly 15, and the grinding roller 16 is arranged corresponding to a grinding ring 17; in the original pulverizer, the weight of the grinding roller assembly 15 distributed at two ends of the cross arm shaft 19 is not equal, because the cross arm shaft 19 is not installed on the gravity center line of the grinding roller assembly 15, the gravity center of the grinding roller assembly 15 is unstable, and in a natural state, the grinding roller 16 of the grinding roller assembly 15 naturally swings towards the grinding ring 17, that is, in the original pulverizer, the grinding roller 16 and the grinding ring 17 are in contact in a natural state, and when the grinding roller 16 and the grinding ring 17 rotate, the pressure between the grinding roller 16 and the grinding ring 17 is increased along with the generation of centrifugal force, so that the vibration phenomenon of the pulverizer is caused. In the pulverizer, the grinding roller hanger 14 is generally provided with four branches, or branches with variable quantity can be arranged according to actual production needs, and the four branches are respectively correspondingly provided with four grinding roller assemblies 15; the grinding roller assembly 15 is arranged on the grinding roller hanger 14 in a hinged mode, so that the grinding roller assembly 15 can swing under the action of centrifugal force to extrude materials, and rolling and grinding of the materials are achieved.
A scraper knife 18 is arranged on the machine base 10, the scraper knife 18 is rigidly connected with the grinding roller hanger 14 through a connecting piece, or the scraper knife 18 is rigidly connected with the central shaft 13 through a scraper knife cylinder 110, the scraper knife cylinder 110 is sleeved on the central shaft 13, the scraper knife 18 is uniformly distributed on the radial direction of the scraper knife cylinder 110, and the scraper knife 18 is arranged below the grinding roller assembly 15. The purpose of the blade 18 is to enable the blade 18 to rotate with the rotation of the central shaft 13, further scooping material into the gap between the grinding roller 16 and the grinding ring 17.
In order to prevent the grinding roller 16 and the grinding ring 17 from contacting to increase abrasion in operation or in natural conditions and ensure that a gap meeting production requirements is reserved between the grinding roller 16 and the grinding ring 17, an adjusting base 20 for adjusting the gap between the grinding roller 16 and the grinding ring 17 is arranged on the grinding roller hanger 14, an adjusting rod 21 is arranged on the adjusting base 20, the adjusting rod 21 and the adjusting base 20 can move linearly relative to each other, and the end part of the adjusting rod 21 is tightly attached to the upper part of the grinding roller assembly 15. The adjusting rod 21 is preferably a threaded screw rod, the threaded screw rod is arranged on the adjusting base 20 in a threaded connection mode, the end part of the adjusting rod 21 is tightly attached to the upper part of the grinding roller assembly 15 so as to offset natural swinging of the grinding roller assembly 15 under a natural condition, the grinding roller assembly 15 generates unnatural swinging by taking the cross arm shaft 19 as a rotating point through adjusting the adjusting rod 21, and the unnatural swinging at the position refers to the fact that swinging of the grinding roller assembly 15 is limited by the adjusting rod 21, and therefore the size of a gap between the grinding roller 16 and the grinding ring 17 is determined; when the grinding roller is used specifically, the gap between the grinding roller 16 and the grinding ring 17 can be adjusted by adjusting the adjusting rod 21 according to the requirement of the particle size of the produced material, so that the particle size of the produced material meets the production requirement.
During the production of the pulverizer, the grinding roller assembly 15 is installed on the grinding roller hanger 14 through the cross arm shaft 19, the grinding roller assembly 15 can swing around the cross arm shaft 19, and the shovel blade 18 forms rigid connection with the grinding roller hanger 14 through each connecting piece. When the pulverizer works, the grinding ring 17 is kept fixed, the central shaft 13 and the grinding roller hanger 14 perform rapid rotary motion under the power action of an external power mechanism, the grinding roller assembly 15 and the scraper knife 18 perform rapid rotary motion together under the driving of the grinding roller hanger 14, the central shaft 13 and the scraper knife cylinder 110, meanwhile, the grinding roller assembly 15 swings around the central shaft 13, the scraper knife 18 below the grinding roller assembly 15 sends materials into a gap between the grinding roller 16 and the grinding ring 17, the grinding roller assembly 15 forms centrifugal force in the swinging process around the central shaft 13, so that the grinding roller assembly 15 starts to expand outwards, but under the limiting action of the adjusting rod 21, namely, the lower end of the grinding roller assembly 15 expands outwards but the upper part of the grinding roller assembly 15 is attached to the adjusting rod 21, the grinding roller assembly 15 cannot expand further, so that the gap value "L" between the grinding roller 16 and the grinding ring 17 is kept, so that the grinding roller 16 is not in direct contact with the grinding ring 17.
After the pulverizer works for a period of time, the grinding roller 16 and the grinding ring 17 are still worn, and under the action of the wear, the gap between the grinding roller 16 and the grinding ring 17 becomes larger, and in order to make the gap smaller to reach the gap value "L", or to make the average value of the gap between the grinding roller 16 and the grinding ring 17 approach the gap value "L", when the pulverizer stops, the adjustment rod 21 is adjusted to make the gap between the grinding roller 16 and the grinding ring 17 reach or approach the average value to the gap value "L", thereby ensuring that the pulverizer produces the material meeting the requirements.
Specifically, when the gap between the grinding roller 16 and the grinding ring 17 is increased, the adjusting rod 21 is adjusted to move back relative to the grinding roller assembly 15, a distance is generated between the grinding roller assembly 15 and the adjusting rod 21, the grinding roller assembly 15 is subjected to the action of natural swinging, the grinding roller 16 of the grinding roller assembly 15 swings towards the grinding ring 17, the upper part of the grinding roller assembly 15 swings towards the end part of the adjusting rod 21 until the upper part of the grinding roller assembly 15 is attached to the end part of the adjusting rod 21, the grinding roller assembly 15 does not swing any more, and the gap between the grinding roller 16 and the grinding ring 17 is changed into the gap value "L" again.
In order to adjust the gap between the grinding roller 16 and the grinding ring 17 more conveniently and more laborsavingly, a servo motor 22 is arranged on the adjusting rod 21, an output shaft of the servo motor 22 is in transmission connection with the adjusting rod 21, and the adjusting rod 21 is adjusted, i.e. moved forwards or backwards, by controlling the servo motor 22 to rotate, wherein the forward or backward movement is relative linear movement; in a matching manner, a gap sensor 23 is also arranged on the housing 11, and a sensing end of the gap sensor 23 corresponds to the gap between the grinding roller 16 and the grinding ring 17; a controller 24 electrically connected with the servo motor 22 and the gap sensor 23 is also arranged, the controller 24 is a PLC (programmable logic controller) which is a control device commonly used in the field, the controller 24 is powered by an external power supply 25, the external power supply 25 supplies power to the controller 24, and the controller 24 distributes the power to the servo motor 22 and the gap sensor 23 through conducting wires; those skilled in the art will appreciate that the PLC is capable of implementing the above-described functions, and how to implement the above-described functions for the PLC controller, the present invention is not described in detail, nor does it pertain to the improvements of the present invention. A gap sensor 23 is arranged on the machine housing 11, the gap sensor 23 is provided with a protective housing when arranged, a sensing end of the gap sensor 23 corresponds to the gap between the grinding roller 16 and the grinding ring 17, the gap sensor 23 is used for measuring the gap between the grinding roller 16 and the grinding ring 17 and transmitting the measured gap value to a controller 24, and the controller 24 performs corresponding operation according to a threshold value.
When the adjustment lever 21 is first attached, the adjustment lever 21 is adjusted so that the gap between the grinding roll 16 and the grinding ring 17 is equal to the gap value "L". When the gap sensor 23 measures that the gap value "L" between the grinding roller 16 and the grinding ring 17 becomes larger, which indicates that the grinding roller 16 and/or the grinding ring 17 is worn out in contact with the material, so that a part of the surface of the grinding roller 16 and/or the grinding ring 17 is worn out, and the gap value "L" becomes larger, the controller 24 receives the measurement value of the gap sensor 23 and controls the servo motor 22 to rotate according to a threshold value, the servo motor 22 drives the adjusting rod 21 to rotate on the adjusting base 20 in a threaded manner, so that the end of the adjusting rod 21 is spaced from the upper part of the grinding roller assembly 15, the grinding roller assembly 15 naturally swings, and the gap between the grinding roller 16 and the grinding ring 17 becomes the gap value "L" or is close to the gap value "L". It should be noted that during operation of the grinding mill, the wear of the grinding roller 16 and/or the grinding ring 17 is not uniform, which results in a gap between the grinding roller 16 and the grinding ring 17 that is not uniform in the circumferential direction but varies, in which case only a value close to the gap value "L" can be selected, i.e. the average value of the gap between the grinding roller 16 and the grinding ring 17 is close to the gap value "L".
When the pulverizer works, the controller 24, the servo motor 22 and the gap sensor 23 are all in a locking state and all stop working, after the pulverizer stops working, the controller 24, the servo motor 22 and the gap sensor 23 start working again, the gap sensor 23 measures the gap between the grinding roller 16 and the grinding ring 17, if the gap between the grinding roller 16 and/or the grinding ring 17 is enlarged due to abrasion, the controller 24 controls the servo motor 22 to act, and the gap or the distance between the end part of the adjusting rod 21 and the upper part of the grinding roller assembly 15 is adjusted, so that the grinding roller assembly 15 naturally swings; if the grinding roller 16 and/or the grinding ring 17 are not worn, the controller 24 and the servomotor 22 are not activated. One of the mill and controller 24 is active and one is inactive, which can be achieved by adding an interlock switch between the mill power supply and the external power supply 25.
Through the adjusting rod 21, the servo motor 22, the controller 24 and other components, the gap between the grinding roller 16 and the grinding ring 17 can be always kept or close to the gap value L, so that the working efficiency of the pulverizer equipment is kept to the maximum, and because the grinding roller 16 and the grinding ring 17 are not in direct contact in the working process, the vibration of the pulverizer is also reduced, and the faults of the equipment are reduced.
The above description is only a preferred embodiment of the present invention, and is not a limitation to the technical solution of the present invention, and it should be noted that, further improvements and changes can be made by those skilled in the art on the premise of the technical solution of the present invention, and all such improvements and changes should be covered in the protection scope of the present invention.
Claims (6)
1. A gap adjusting device for a grinding roller and a grinding ring comprises a grinding roller hanger (14), and is characterized by also comprising an adjusting base (20) and an adjusting rod (21);
the adjusting base (20) is arranged on the grinding roller hanger (14);
the adjusting rod (21) and the adjusting base (20) can move linearly relatively, and the end part of the adjusting rod (21) is tightly attached to the grinding roller assembly (15).
2. A grinding roll and grinding ring gap adjusting device according to claim 1, characterized in that the adjusting rod (21) is arranged on the adjusting base (20) in a threaded manner, the adjusting rod (21) being a threaded screw.
3. The grinding roll and ring gap adjustment apparatus of claim 2, further comprising:
a machine base (10),
a machine shell (11) fixedly connected with the machine base,
a servo motor (22) in transmission connection with the adjusting rod (21),
a gap sensor (23) arranged on the machine housing (11), the gap sensor (23) corresponding to a gap between the grinding roller (16) and the grinding ring (17); and
and a controller (24) electrically connected to the servo motor (22) and the gap sensor (23).
4. A grinding roll and ring gap adjusting apparatus according to claim 3, characterized in that the controller (24) is powered by an external power supply (25), the controller (24) being a PLC and the external power supply (25) being a battery.
5. A grinding roll and ring gap adjustment apparatus as set forth in claim 3, further comprising:
a bearing seat (12) arranged on the machine base (10),
a central shaft (13) rotatably arranged on the bearing housing (12), the grinding roller hanger (14) being arranged on the central shaft (13), and
a grinding roller assembly (15) arranged on the grinding roller hanger (14) in an articulated manner.
6. A grinding roll and grinding ring gap adjusting device according to claim 5, characterized in that a scraper knife (18) is arranged on the machine base (10), the scraper knife (18) is arranged below the grinding roll assembly (15), and the scraper knife (18) is in transmission connection with the central shaft (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021018250.5U CN212576424U (en) | 2020-06-05 | 2020-06-05 | Grinding roller and grinding ring gap adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021018250.5U CN212576424U (en) | 2020-06-05 | 2020-06-05 | Grinding roller and grinding ring gap adjusting device |
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| Publication Number | Publication Date |
|---|---|
| CN212576424U true CN212576424U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021018250.5U Active CN212576424U (en) | 2020-06-05 | 2020-06-05 | Grinding roller and grinding ring gap adjusting device |
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| CN (1) | CN212576424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558665A (en) * | 2022-03-02 | 2022-05-31 | 南京凯盛国际工程有限公司 | External circulation vertical mill capable of detecting abrasion loss of grinding roller on line and automatically adjusting grinding roller and operation method thereof |
| CN115301352A (en) * | 2022-08-12 | 2022-11-08 | 李珍 | Preparation method of epoxy resin |
-
2020
- 2020-06-05 CN CN202021018250.5U patent/CN212576424U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114558665A (en) * | 2022-03-02 | 2022-05-31 | 南京凯盛国际工程有限公司 | External circulation vertical mill capable of detecting abrasion loss of grinding roller on line and automatically adjusting grinding roller and operation method thereof |
| CN115301352A (en) * | 2022-08-12 | 2022-11-08 | 李珍 | Preparation method of epoxy resin |
| CN115301352B (en) * | 2022-08-12 | 2024-05-10 | 上海固柯科技有限公司 | Preparation method of epoxy resin |
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