CN211581431U

CN211581431U - Permanent-magnet fixation machine

Info

Publication number: CN211581431U
Application number: CN201921802691.1U
Authority: CN
Inventors: 赵章风; 蒋建东; 潘柏松; 钟江; 张宪; 彭继宇; 单晓杭
Original assignee: Zhejiang University of Technology ZJUT
Current assignee: Zhejiang University of Technology ZJUT
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-09-29
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a permanent magnet fixation machine, which comprises a driving motor, a frame, a belt, a roller, a shell, a spiral coil, a conductor, a permanent magnet fixing part, a driving belt wheel and a reduction box, wherein the driving motor and the frame are both fixed on the horizontal ground; arranging spiral coils on the outer side of the roller according to power requirements; the other end of the roller is provided with a conductor; the permanent magnets are uniformly arranged on the inner wall of the permanent magnet fixing piece. The utility model discloses an electromagnetism machine of completing adopts the permanent magnet as the stator, and driving motor drives the conductor that adheres to on the cylinder as the rotor, and the different magnetic pole that does not stop through the rotor and cut the permanent magnet produces alternating current, and then utilizes spiral coil to form the vortex electric field and heats the cylinder inside.

Description

Permanent-magnet fixation machine

Technical Field

The utility model relates to a tealeaves field of completing, more specifically the theory that says so especially relates to a permanent magnetism machine of completing.

Background

The tea leaf fixation is one of the primary tea leaf preparation processes, and the main purpose of the fixation is to destroy and passivate the activity of oxidase in fresh tea leaves at high temperature, oxidize enzymes such as tea polyphenol in the fresh tea leaves all the time, evaporate partial water in the fresh tea leaves, soften the tea leaves, facilitate rolling and forming, simultaneously disperse green odor and promote the formation of good aroma.

The current water-removing technology is divided into two types of manual water-removing and mechanical water-removing. At present, most of tea is subjected to mechanical fixation except that a few of tea adopts an artificial fixation technology. There are multiple tea wrap machinery in the market, including drum-type machine, hot-blast machine, steam machine and microwave machine etc. that completes, wherein the drum-type machine that completes has advantages such as with low costs, production efficiency height, convenient operation, does not have other machine that completes to replace, is used widely in production.

The traditional roller enzyme deactivating machine adopts wood burning, coal gas, an electric heating tube and other heating modes for heating, the wood burning, coal burning and coal gas burning methods are backward, the temperature is difficult to control, the heating is not uniform, the enzyme deactivating effect is not good, the environment is polluted, and the resources are wasted.

The heating methods of the electric heating tube and the electric coil are common at present, but the heating methods have the following problems.

The following disadvantages exist for the operation mode of heating the electric heating tube:

1. the heat loss is large and the efficiency is low; the electric heating tube heater used at present is made of resistance wires, the resistance wires heat the inner side and the outer side, the heat of the inner surface, namely the part close to the boiler barrel, is transmitted to the roller, and most of the heat is dissipated in the air; because the heat conduction is complex, the thermal efficiency from the resistance wire to the inner wall of the boiler barrel is only about 20-30%, and the energy waste is serious.

2. The temperature of the working environment of the machine is increased, and the environmental temperature is increased because the electric heating tube releases a large amount of heat to the surrounding environment, and particularly in summer, the influence on the production environment is large.

3. The field working temperature exceeds 45 ℃, and the method has great influence on the body of a worker. Some enterprises have to use air conditioners to lower the operating temperature, which in turn causes secondary waste of energy.

4. The service life is short, the maintenance amount is large, and the quality is reduced; because of the heating of the electric heating tube, the working temperature is as high as 800 ℃, and the resistance wire in the electric heating tube is easy to burn out by high-temperature oxidation. The service life of the common electric heater is only about half a year, and the maintenance amount and the maintenance cost are relatively large. When one section or a plurality of sections of the resistance wire are burnt off, the resistance wire is difficult to find in time, which causes the temperature of the roller to be uneven and affects the water-removing quality.

5. The thermal inertia is large. Because the heat transfer process of resistance heating is more complicated, each procedure has heat loss, so that the heating lag is large, the temperature control is not facilitated, and the tea quality is influenced.

For the working mode of electromagnetic heating by an electrified coil, two types of enzyme deactivating machines are available on the market at present. One is coil stationary electromagnetic heating, and the other is coil rotary electromagnetic heating. For the fixed electromagnetic heating of the coil, the roller rotates and the coil does not move during operation, but the gap between the coil and the roller wall is too large, so that the energy conversion efficiency is reduced, the load of an electromagnetic host is increased, and the precision requirement on roller processing is increased. For the coil rotary type electromagnetic heating, the coil is wound on a roller of the enzyme deactivating machine through a heat insulating material, and the coil rotates along with the roller during operation. The heating principle is the same as that of a fixed coil, and the difference is that the winding mode of the coil of the machine type needs to be additionally provided with electric brush equipment to brush high-frequency high-voltage oscillating current generated by an electromagnetic main machine into the coil rotating along with the roller. The distance between the machine type coil and the cylinder wall is small, the efficiency of magnetic field energy transfer is high, and the air cooling system can meet the cooling requirement. The disadvantage of this type is that the concentricity requirement of the roller processing is high, so that the stability requirement of the brush device during operation can be met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve current electrical coil electromagnetic heating formula machine of completing's various defects, provide a permanent magnetism machine of completing, for electrical coil electromagnetic heating's working method, fix around the cylinder through solenoid, conductor cutting magnetic field produces alternating voltage, need not too high cylinder machining precision and extra brush device, for the working method of electric heating pipe heating, can alleviate national electric power shortage, reduction in production cost, resources are saved, environmental protection.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a permanent magnet fixation machine comprises a driving motor, a rack, a belt, a roller, a shell, a spiral coil, a conductor, a permanent magnet fixing piece, a driving belt wheel and a reduction gearbox, wherein the driving motor and the rack are both fixed on a horizontal ground; the outer side of the roller is provided with spiral coils according to the power requirement, and the spiral coils are uniformly wound on the roller; the other end of the roller is provided with a conductor, the two ends of the conductor are fixed on the roller, and the two ends of the conductor are respectively connected with two joints of the spiral coil; the permanent magnet fixing piece is integrally in a ring shape and is fixed on the rack, the permanent magnet fixing piece and the roller are coaxially arranged, the permanent magnets are uniformly arranged on the inner wall of the permanent magnet fixing piece, the permanent magnets are arranged in a mode that N poles and S poles are distributed in a staggered mode, the conductor is arranged between the permanent magnets and the roller, and the conductor cuts the magnetic fields of the permanent magnets when moving along with the roller.

Further, the casing covers the entire permanent magnet fixing member and the drum.

Furthermore, supporting wheel fixing parts are further fixed at two ends of the rack, two supporting wheels are arranged on each supporting wheel fixing part, and the outer walls of two ends of the roller are respectively supported through the two supporting wheels at the two ends.

Furthermore, the number of the permanent magnets is 6-100, and the permanent magnets are distributed and fixed on the inner wall of the permanent magnet fixing piece in an array mode.

Furthermore, a reduction gearbox is arranged between the driving belt wheel and the driving motor, an output shaft of the reduction gearbox is connected with an output shaft of the driving motor, the driving belt wheel is connected to the output shaft of the reduction gearbox, and the reduction gearbox is fixed on the bottom surface through a motor base.

Further, the conductor includes the fixed segment of the vertical setting in cutting section, the interlude of vertical setting and both ends that two levels set up, and the length of two cutting sections equals, and the both ends of interlude are connected respectively to the one end of two cutting sections, and the other end of two cutting sections passes through the interlude to be fixed on the cylinder.

Further, the conductor is made of a conductive material. The conductor is preferably a copper conductor.

Further, the shell is made of heat insulation materials.

The utility model discloses a concrete work flow as follows: when the driving motor is started, an output shaft of the driving motor drives the driving belt wheel to move through the reduction box, and then the roller is driven to rotate through the belt, so that the conductor at the other end of the roller is driven to rotate along with the roller; when the conductor moves, the horizontal cutting section of the conductor continuously cuts magnetic induction lines generated by the permanent magnet to generate induction voltage; because the N poles and the S poles of the permanent magnets are distributed in a staggered manner, the conductors continuously cut the different magnetic poles of the permanent magnets, the generated induced voltage is induced alternating voltage, and when the induced alternating voltage passes through the spiral coil, the spiral coil is equivalent to a resistor, namely, alternating current is generated; utilize alternating current to pass through spiral coil, spiral coil produces the alternating magnetic field that the direction constantly changes, and the inside of the cylinder that is in alternating magnetic field can produce the vortex electric field, and the vortex electric field promotes the carrier motion of cylinder, produces the joule heat effect, and then makes the inside intensification of cylinder, realizes the heating.

Hypothesis bookUtility model has a driving motor rotating speed of

Reduction ratio of reduction gearbox

Motor output shaft radius η that links to each other with driving pulley, drum radius η that links to each other with the belt pulley, permanent magnet logarithm n, the frequency of vortex production on the spiral coil:

the beneficial effects of the utility model reside in that:

1. the utility model discloses an electromagnetism machine of completing adopts the permanent magnet as the stator, and driving motor drives the conductor that adheres to on the cylinder as the rotor, and the different magnetic pole that cuts the permanent magnet through the rotor incessantly produces alternating current, and then utilizes spiral coil to form the vortex electric field and heats the inside of drum, and this electromagnetism machine of completing need not to adopt mechanisms such as brush, reduces the requirement to the cylinder axiality, has reduced processing and purchasing cost.

2. The utility model discloses a stator is the permanent magnet that the array distributes the different in quantity for the permanent magnet mounting is last fixed, and the actual physical dimension of permanent magnet is minimum, can change electromagnetic induction's fundamental frequency through the array figure of adjustment permanent magnet, changes the machining power.

3. The utility model relates to a conductor of rotor is by driving motor controller rotational speed, and two joints of spiral coil on the cylinder are connected at the both ends of conductor, and the rotational speed of cylinder is controlled by driving motor and reducing gear box, can finely tune electromagnetic induction's frequency through the adjustment rotational speed, and then the heating power of control electron machine of completing.

4. The utility model discloses an electromagnetic fixation machine has derived the physical quantity that is relevant with the electromagnetic induction frequency through actual mechanical dimensions and physical condition, adjusts the numerical value size of relevant physical quantity, can calculate the frequency size that reachs electromagnetic induction through the formula, and then can carry out feedback control, adjusts the heating effect of electromagnetic fixation machine.

5. The utility model discloses a two sets of supporting wheels carry out the both ends support of cylinder, reduce the pressure of cylinder both ends to the bearing, improve the life-span of bearing.

6. The utility model discloses a whole conductor of casing cladding and cylinder, casing adopt thermal insulation material, guarantee in the motion process that heat energy can not leak, improve energy utilization.

7. The utility model discloses can increase substantially heating efficiency, show and shorten the intensification time, improve the efficiency of completing.

Drawings

Fig. 1 is a schematic view of the overall structure of the permanent magnet fixation machine of the present invention.

Fig. 2 is an axonometric view of the casing of the permanent magnet fixation machine of the utility model when it is half wrapped.

Fig. 3 is an axonometric view of another angle when the casing of the permanent magnetism water removing machine of the utility model is half wrapped.

Fig. 4 is a front view of the connection of the permanent magnet and the permanent magnet fixture of the present invention.

In the figure, 1-driving motor, 2-frame, 3-belt, 4-roller, 5-shell, 6-spiral coil, 7-conductor, 8-permanent magnet, 9-permanent magnet fixing piece, 10-supporting wheel, 11-supporting wheel fixing piece, 12-motor base, 13-reduction box.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 4, a permanent magnet fixation machine comprises a driving motor 1, a frame 2, a belt 3, a roller 4, a shell 5, a spiral coil 6, a conductor 7, a permanent magnet 8, a permanent magnet fixing piece 9, a driving pulley and a reduction gearbox 13, wherein the driving motor 1 and the frame 2 are both fixed on a horizontal ground, the shell 5 is horizontally installed on the frame 2, the roller 4 is sleeved in the shell 5, two ends of the roller 4 are supported on the inner wall of the shell 5 through bearings, one end of the roller 4 is provided with a driving shaft, the driving pulley is installed on a belt 3 wheel of the driving motor 1, the driving pulley is connected with the driving shaft of the roller 4 through the belt 3, and the driving motor 1 drives the belt 3 to rotate through the driving pulley when moving, so as to drive the roller 4 to; the spiral coil 6 is arranged on the outer side of the roller 4 according to the power requirement, and the spiral coil 6 is uniformly wound on the roller 4; a conductor 7 is arranged at the other end of the roller 4, two ends of the conductor 7 are fixed on the roller 4, and two ends of the conductor 7 are respectively connected with two joints of the spiral coil 6; permanent magnet mounting 9 is whole to be the ring shape and fixes in frame 2, and permanent magnet mounting 9 sets up with the axle center with cylinder 4, and a plurality of permanent magnets 8 are evenly arranged on the inner wall of permanent magnet mounting 9, and permanent magnet 8 sets up with the crisscross mode that distributes of N utmost point, S utmost point, and conductor 7 sets up between permanent magnet 8 and cylinder 4, cuts the magnetic field of a plurality of permanent magnets 8 when conductor 7 follows cylinder 4 motion.

The housing 5 encloses the entire permanent magnet holder 9 and the drum 4.

Supporting wheel fixing parts 11 are further fixed at two ends of the rack 2, two supporting wheels 10 are arranged on each supporting wheel fixing part 11, and the outer walls of two ends of the roller 4 are respectively supported through the two supporting wheels 10 at the two ends.

6-100 permanent magnets 8 are arranged, and the permanent magnets 8 are distributed and fixed on the inner wall of the permanent magnet fixing piece 9 in an array mode.

A reduction gearbox 13 is further arranged between the driving belt wheel and the driving motor 1, an output shaft of the reduction gearbox 13 is connected with an output shaft of the driving motor 1, the driving belt wheel is connected to the output shaft of the reduction gearbox 13, and the reduction gearbox 13 is fixed on the bottom surface through a motor base 12.

The conductor 7 comprises two horizontally arranged cutting sections, a vertically arranged middle section and two vertically arranged fixed sections at two ends, the lengths of the two cutting sections are equal, one ends of the two cutting sections are respectively connected with two ends of the middle section, and the other ends of the two cutting sections are fixed on the roller 4 through the middle section. The cutting section is used for cutting the magnetic induction line of permanent magnet, and the interlude is used for two cutting sections of fixed connection.

The conductor 7 is made of an electrically conductive material. The conductor 7 is preferably a copper conductor 7. The housing 5 is made of a heat insulating material.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims

1. A permanent magnetism machine of completing which characterized in that: comprises a driving motor (1), a frame (2), a belt (3), a roller (4), a shell (5), a spiral coil (6), a conductor (7), a permanent magnet (8), a permanent magnet fixing piece (9), a driving belt wheel and a reduction box (13), the driving motor (1) and the frame (2) are both fixed on the horizontal ground, the shell (5) is horizontally arranged on the frame (2), the roller (4) is sleeved in the shell (5), two ends of the roller (4) are supported on the inner wall of the shell (5) through bearings, one end of the roller (4) is provided with a driving shaft, a driving belt wheel is arranged on a belt (3) wheel of the driving motor (1), the driving belt wheel is connected with the driving shaft of the roller (4) through the belt (3), and the driving motor (1) drives the belt (3) to rotate through the driving belt wheel when moving so as to drive the roller (4) to rotate; the outer side of the roller (4) is provided with a spiral coil (6) according to the power requirement, and the spiral coil (6) is uniformly wound on the roller (4); a conductor (7) is arranged at the other end of the roller (4), two ends of the conductor (7) are fixed on the roller (4), and two ends of the conductor (7) are respectively connected with two joints of the spiral coil (6); permanent magnet mounting (9) wholly are the ring shape and fix on frame (2), and permanent magnet mounting (9) set up with the axle center with cylinder (4), and a plurality of permanent magnet (8) are evenly arranged on the inner wall of permanent magnet mounting (9), and permanent magnet (8) set up with the N utmost point, the crisscross mode that distributes of S utmost point, and conductor (7) set up between permanent magnet (8) and cylinder (4), cuts the magnetic field of a plurality of permanent magnet (8) when conductor (7) follow cylinder (4) and move.

2. The permanent magnet fixation machine according to claim 1, characterized in that: the shell (5) covers the whole permanent magnet fixing piece (9) and the roller (4).

3. The permanent magnet fixation machine according to claim 1, characterized in that: supporting wheel fixing parts (11) are further fixed at two ends of the rack (2), two supporting wheels (10) are arranged on each supporting wheel fixing part (11), and outer walls of two ends of the roller (4) are respectively supported through the two supporting wheels (10) at the two ends.

4. The permanent magnet fixation machine according to claim 1, characterized in that: 6-100 permanent magnets (8) are arranged, and the permanent magnets (8) are distributed and fixed on the inner wall of the permanent magnet fixing piece (9) in an array manner.

5. The permanent magnet fixation machine according to claim 1, characterized in that: a reduction gearbox (13) is further arranged between the driving belt wheel and the driving motor (1), an output shaft of the reduction gearbox (13) is connected with an output shaft of the driving motor (1), the driving belt wheel is connected to the output shaft of the reduction gearbox (13), and the reduction gearbox (13) is fixed on the bottom surface through a motor base (12).

6. The permanent magnet fixation machine according to claim 1, characterized in that: the conductor (7) comprises two horizontally arranged cutting sections, a vertically arranged middle section and two vertically arranged fixed sections at two ends, the lengths of the two cutting sections are equal, one ends of the two cutting sections are respectively connected with two ends of the middle section, and the other ends of the two cutting sections are fixed on the roller (4) through the middle section.

7. The permanent magnet fixation machine according to claim 1, characterized in that: the conductor (7) is made of an electrically conductive material.

8. The permanent magnet fixation machine according to claim 1, characterized in that: the shell (5) is made of heat insulating materials.