CN210052394U - Direct current motor dismounting model for numerical control principle teaching - Google Patents

Abstract

The utility model discloses a direct current motor dismounting model for numerical control principle teaching, which comprises a motor, the outer side of the motor is provided with a radiating fin, the top end of the radiating fin is provided with a hoisting hole, the bottom end of the motor is provided with a motor fixing plate, the motor fixing plate is provided with a fixing hole, the outer side of the motor is provided with a motor protective sleeve, the motor protective sleeve is provided with a heat dissipation hole, the heat dissipation holes are positioned in the middle position on the motor protective sleeve, the motor protective sleeve is provided with the locking plate, the utility model has the advantages of simpler design structure, fewer structural elements and convenient teaching explanation, the motor end cover is integrated with the motor, the bottom motor fixing plate is provided with a fixing hole for connection, and the motor fixing plate and the fixing hole are arranged into an integral structure, and the numerical control principle can be clearly known through the working element in the motor.

Description

Direct current motor dismounting model for numerical control principle teaching

Technical Field

The utility model relates to a direct current motor field specifically is a direct current motor dismouting model for numerical control principle teaching.

Background

The direct current motor is a rotating motor which can convert direct current electric energy into mechanical energy or convert mechanical energy into direct current electric energy, can realize the mutual conversion of the direct current electric energy and the mechanical energy, and is a direct current motor when the direct current motor is used as a motor to convert the electric energy into the mechanical energy; the direct current generator is used as a generator to convert mechanical energy into electric energy, the structure of the direct current generator is composed of a stator and a rotor, the part of the direct current generator which is still in operation is called the stator, the stator mainly functions to generate a magnetic field and is composed of a machine base, a main magnetic pole, a commutator pole, an end cover, a bearing, an electric brush device and the like, the part which rotates in operation is called the rotor and mainly functions to generate electromagnetic torque and induced electromotive force, and is a hub for energy conversion of the direct current generator, so the direct current generator is also called an armature generally and is composed of a rotating shaft, an armature core, a rotor winding, a commutator, a fan and the like, the direct current generator is a machine for converting mechanical energy into direct current energy and is mainly used as a direct current motor required by excitation power supplies of a direct current motor, electrolysis, electroplating, electric smelting, charging.

At present, a direct current motor dismounting model for numerical control principle teaching has many disadvantages, for example: inconvenient disassembly and assembly, more structures, difficult understanding of the principle and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a direct current motor dismouting model for numerical control principle teaching to the dismouting that proposes in solving above-mentioned background is inconvenient, the structure is more, the difficult understanding scheduling problem of principle.

In order to achieve the above object, the utility model provides a following technical scheme: a direct current motor disassembly and assembly model for numerical control principle teaching comprises a motor, wherein a radiating fin is installed on the outer side of the motor, a lifting hole is installed at the top end of the radiating fin, a motor fixing plate is installed at the bottom end of the motor, a fixing hole is formed in the motor fixing plate, a motor protecting sleeve is installed on the outer side of the motor, a radiating hole is formed in the motor protecting sleeve and is located in the middle of the motor protecting sleeve, a locking plate is arranged on the motor protecting sleeve and is located at one end of the motor protecting sleeve, a buckling plate is arranged on the motor protecting sleeve and is located at the other end of the motor protecting sleeve, a fan blade end cover is installed at one end of the motor, a fan blade is arranged in the fan blade end cover, a fan blade plate is installed at one end of the fan blade plate, and a second positioning bearing, the carbon brush is installed to the one end of second location bearing, the inboard of carbon brush is provided with the commutator, rotor winding is installed to the one end of commutator, the rotor is installed to rotor winding's one end, and the rotor is located the intermediate position in the motor, excitation winding is installed in the outside of rotor, the connecting plate is installed to the one end of rotor, the fixed plate is installed to the one end of connecting plate, be provided with first location bearing in the fixed plate, motor spindle is installed to the one end of first location bearing.

Preferably, the first positioning bearing and the second positioning bearing are located on the motor spindle, and the first positioning bearing and the second positioning bearing are located at two ends of the motor spindle.

Preferably, the carbon brush is fixedly connected with the commutator, and the carbon brush is located at the outer side position of the commutator.

Preferably, the fan blade end cover and the motor are arranged into an integral structure, and the fan blade end cover is fixedly connected with the radiating fins.

Preferably, the rotor is fixedly connected with the rotor winding, and the rotor is located at the right middle position in the motor.

Preferably, the excitation winding is fixedly connected with the motor, and the excitation winding is fixedly connected with the motor.

Preferably, the fan blades are fixedly connected with the fan blade plate, and the number of the fan blades is three.

Preferably, the commutator is rotatably connected with the carbon brush, and the commutator is positioned on the motor spindle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the design structure is simple, the number of structural elements is small, the teaching is convenient, the motor end cover mansion motor is arranged into an integrated structure, the bottom motor fixing plate is provided with a fixing hole for connection, the motor fixing plate and the fixing hole are arranged into an integrated structure, and the numerical control principle can be known clearly through the working element inside the motor;

2. the utility model discloses both ends are connected to the inside main shaft that is provided with of motor, play the main role of motor core part, and the inboard heat dissipation of motor, make balanced fixed rotation, dismouting simple, each parts effect all is close with the numerical control principle, the study of being convenient for.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is a schematic structural view of the motor protecting sleeve of the present invention;

fig. 5 is a schematic structural view of the spindle of the present invention.

In the figure: 1. a fan blade end cover; 2. a heat sink; 3. a commutator; 4. an excitation winding; 5. a rotor; 6. a rotor winding; 7. a connecting plate; 8. a fixing plate; 9. a first positioning bearing; 10. a motor spindle; 11. a fan blade; 12. a fan blade plate; 13. a second positioning bearing; 14. a carbon brush; 15. a fixing hole; 16. a motor fixing plate; 17. a locking plate; 18. a motor protecting sleeve; 19. buckling the plate; 20. hoisting holes; 21. a motor; 22. and (4) heat dissipation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides an embodiment: a direct current motor disassembly and assembly model for teaching of numerical control principles comprises a motor 21, wherein a radiating fin 2 is installed on the outer side of the motor 21, the radiating fin 2 is a device for radiating an electronic element in an electrical appliance, and is made of aluminum alloy, brass or bronze into a plate shape, a sheet shape, a multi-sheet shape and the like, the radiating fin used by the motor 21 is a folding gear-inserting radiating fin 2, the technology can be combined and matched with copper and aluminum bottom plates at will by using copper and aluminum fins, and the defect that new thermal resistance is generated due to unbalanced heat conduction of various welding tin pastes in the welding process is effectively avoided. The customer has more selectivity and diversity of thermal solutions, the top end of the heat sink 2 is provided with a lifting hole 20, the lifting hole 20 is used for installing and disassembling the motor 21, the bottom end of the motor 21 is provided with a motor fixing plate 16, the motor fixing plate 16 is used for fixing the motor 21, the motor 21 is in a state of being broken by thunder, and damage of other connecting components caused by movement of the motor 21 is prevented, the motor fixing plate 16 is provided with a fixing hole 15, the fixing hole 15 is used for fixing the motor 21, so that the motor 21 is firmly fixed through the motor fixing plate 16 and is prevented from moving, unnecessary loss and trouble are brought, the outer side of the motor 21 is provided with a motor protecting sleeve 18, the motor protecting sleeve 18 is used for protecting one end of the motor 21, and convenience in maintenance of the motor protecting sleeve 18 is increased, the heat dissipation holes 22 are arranged on the motor protecting sleeve 18, and the heat dissipation holes 22, the condition that the internal elements of the motor 21 are damaged due to overhigh temperature caused by long-term work of the carbon brush 14 and the commutator 3 is prevented, the heat dissipation holes 22 are located at the middle position of the motor protective sleeve 18, the motor protective sleeve 18 is provided with the locking plate 17, the locking plate 17 is used for being connected with the buckling plate 19, so that the motor protective sleeve 18 is tightly attached to the motor 21, the motor 21 is protected, the locking plate 17 is located at one end of the motor protective sleeve 18, the buckling plate 19 is arranged on the motor protective sleeve 18, the buckling plate 19 is used for connecting the locking plate 17, so that the motor protective sleeve 18 is fixed on the outer side of the motor 21, the buckling plate 19 is located at the other end of the motor protective sleeve 18, one end of the motor 21 is provided with the fan blade end cover 1, the fan blade end cover 1 is used for connecting the heat dissipation part at one end of the motor 21 to dissipate heat at the inner side of, the fan blades of the ceiling fan are generally 3, the fan blades of the desk fan are generally 5, one end of each fan blade 11 is provided with a fan blade plate 12, each fan blade plate 12 is used for connecting the corresponding fan blade 11, each fan blade 11 rotates along with the corresponding fan blade plate 12, one end of each fan blade plate 12 is provided with a second positioning bearing 13, each second positioning bearing 13 is used for controlling the directional rotation of one end inside a motor 21 to enable the motor 21 to rotate more stably, each second positioning bearing 13 is used for supporting a motor spindle 10, one end of each second positioning bearing 13 is provided with a carbon brush 14, each carbon brush 14 is used for connecting a commutator 3, each carbon brush 14 is also called a brush and serves as a sliding contact piece, each carbon brush 14 is mainly made of graphite, impregnated graphite and metal graphite, each carbon brush 14 is a device for transmitting energy or signals between a fixed part and a rotating part of the motor 21 and is generally made of pure carbon and a coagulant, the shape of the carbon brush is generally, the commutator 3 is a component on a direct current permanent magnet series excited motor for continuously rotating the motor, structurally, the commutator 3 is a circular shape formed by surrounding a plurality of contact pieces, is respectively connected with each tap on a rotor, is connected with two electrodes on the outer side to be called electric brushes to be contacted with the electric brushes, and is only contacted with two of the electric brushes at the same time, if the commutator 3 does not act, the motor can only be clamped in half a circle and only can be used as an electric brake, the centrifugal force generated when the motor rotates is used as power to control the size of a starting resistor, so that the starting current of the motor is reduced, the starting torque is increased, and the wound-rotor type asynchronous electric model realizes the device of the brushless self-control operation, one end of the commutator 3 is equipped with a rotor winding 6, the rotor winding 6 is formed by connecting a certain number of armature coils according to a certain rule, it is a circuit part of the direct current motor, also is a part for inducing electromotive force to generate electromagnetic torque to carry out electromechanical energy conversion, the coil is wound by insulated round or rectangular section wires, the upper and lower layers are embedded in the armature core slot, the upper and lower layers and the coil and the armature core are properly insulated and are pressed by slot wedges, one end of the rotor winding 6 is equipped with a rotor 5, the rotor 5 is a motor rotor in the motor 21, the rotor 5 is positioned at the middle position in the motor 21, the outer side of the rotor 5 is equipped with an excitation winding 4, the excitation winding 4 is a coil winding capable of generating magnetic field, is arranged in the motor 21 and has the functions of series excitation and parallel excitation, the excitation winding 4 in the generator can replace permanent magnet, can produce the powerful magnetic flux density that the permanent magnet can't produce, and can conveniently adjust, thereby can realize high-power electricity generation, connecting plate 7 is installed to rotor 5's one end, connecting plate 7 is used for connecting excitation winding 4, fixed plate 8 is installed to connecting plate 7's one end, fixed plate 8 is used for fixed motor 21 outer end, be provided with first location bearing 9 in the fixed plate 8, first location bearing 9 is used for the rotating element of the inside one end of fixed motor 21, motor spindle 10 is installed to the one end of first location bearing 9, motor spindle 10 is used for driving each rotating member of motor 21 inside and carries out the rotation of fixing.

Further, the first positioning bearing 9 and the second positioning bearing 13 are located on the motor spindle 10, the first positioning bearing 9 and the second positioning bearing 13 are located at two ends of the motor spindle 10, and the first positioning bearing 9 and the second positioning bearing 13 drive components inside the motor 21 to perform stable rotation work through the fixed connection of the motor spindle 10.

Further, the carbon brush 14 is fixedly connected with the commutator 3, the carbon brush 14 is located at the outer side of the commutator 3, the carbon brush 14 is connected to realize current conversion through the rotation of the commutator 3, the carbon brush 14 is also called a brush and is used as a sliding contact, the carbon brush 14 mainly comprises graphite, impregnated graphite and metal graphite, the carbon brush 14 is a device for transmitting energy or signals between the fixed part and the rotating part of the motor 21, and the device is generally made of pure carbon and a coagulant.

Further, fan blade end cover 1 sets up structure as an organic whole with motor 21, and fan blade end cover 1 and fin 2 fixed connection, and fan blade end cover 1 is used for installing fin 2, dispels the heat to the inside one end position of motor 21.

Further, the rotor 5 is fixedly connected with the rotor winding 6, the rotor 5 is positioned in the middle of the motor 21, the rotor 5 is fixedly connected through the rotor winding 6, so that the conversion of electric energy is realized, the rotor winding 6 is formed by connecting a certain number of armature coils according to a certain rule, the rotor winding is a circuit part of a direct current motor and is also a part for generating electromagnetic torque to perform electromechanical energy conversion, the coils are wound by insulated round or rectangular section wires, the upper layer and the lower layer are embedded in slots of an armature core, and the upper layer and the lower layer and the coil and the armature core are properly insulated and tightly pressed by a slot wedge.

Further, excitation winding 4 is fixedly connected with motor 21, and excitation winding 4 is fixedly connected with motor 21, excitation winding 4 is used for rotor 5 inside motor 21 to carry out the electric energy conversion, excitation winding 4 is the coil winding that can produce the magnetic field, installs in motor 21, has the branch of series excitation and shunt excitation, uses excitation winding 4 in the generator, can replace the permanent magnet, can produce the powerful magnetic flux density that the permanent magnet can't produce, and can conveniently adjust to can realize high-power electricity generation.

Further, the fan blades 11 are fixedly connected to the fan blade 12, and the number of the fan blades 11 is three, and the fan blades 11 are fixed by the fan blade 12, so as to dissipate heat from one end position inside the motor 21.

Furthermore, the commutator 3 is rotatably connected with the carbon brush 14, the commutator 3 is positioned on the motor spindle 10, the commutator 3 is used for converting the electric energy in the motor 21, the commutator 3 is a device in which a plurality of contact pieces surround to form a circle and are respectively connected with each tap on the rotor, two electrodes are connected outside the rotor and are called as electric brushes to be contacted with the electric brushes, and only two of the electric brushes are contacted with the commutator 3.

The working principle is as follows: when the motor is used, the motor fixing plate 16 is driven to be fixed through the fixing hole 15 on the motor fixing plate 16, the motor 21 is further fixed, electricity on the excitation winding 4 is conducted to the rotor 5 through the energization of the excitation winding 4, the rotor 5 rotates, the rotor winding 6 is driven to generate electricity through the rotation of the rotor 5, the current generated through the rotor winding 6 passes through the rotation between the commutator 3 and the carbon brush 14, the rotor 5 rotates all the time, the motor spindle 10 is driven to rotate, the mechanical rotation capacity is provided, the rotation stability of each element in the motor 21 is realized through the first positioning bearing 9 and the second positioning bearing 13, the heat dissipation of one end of the outer side of the motor is realized through the motor protecting sleeve 18 on the outer side of the motor 21, the fan blade 11 is connected through the fan blade plate 12 on one end of the motor spindle 10, and the rotation of the fan blade 11 is driven through the rotation of the motor spindle 10, therefore, the heat dissipation of one end inside the motor 21 is carried out, the motor protective sleeve 18 is installed and disassembled through the fixed connection of the locking plate 17 and the buckling plate 19 on the motor protective sleeve 18, the motor 21 is moved through the hoisting hole 20 on the motor 21, and the connection of components inside the motor 21 is carried out through the connecting plate 7.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides a direct current motor dismouting model for numerical control principle teaching, includes motor (21), its characterized in that: the cooling fin (2) is installed on the outer side of the motor (21), a hoisting hole (20) is installed on the top end of the cooling fin (2), a motor fixing plate (16) is installed at the bottom end of the motor (21), a fixing hole (15) is formed in the motor fixing plate (16), a motor protecting sleeve (18) is installed on the outer side of the motor (21), radiating holes (22) are formed in the motor protecting sleeve (18), the radiating holes (22) are located in the middle of the motor protecting sleeve (18), a locking plate (17) is arranged on the motor protecting sleeve (18), the locking plate (17) is located at one end of the motor protecting sleeve (18), a buckle plate (19) is arranged on the motor protecting sleeve (18), the buckle plate (19) is located at the other end of the motor protecting sleeve (18), and a fan blade end cover (1) is installed at one end of the motor (21), a fan blade (11) is arranged in the fan blade end cover (1), one end of the fan blade (11) is provided with a fan blade plate (12), a second positioning bearing (13) is arranged at one end of the fan blade plate (12), a carbon brush (14) is arranged at one end of the second positioning bearing (13), a commutator (3) is arranged on the inner side of the carbon brush (14), a rotor winding (6) is installed at one end of the commutator (3), a rotor (5) is installed at one end of the rotor winding (6), and the rotor (5) is positioned in the middle of the motor (21), the outer side of the rotor (5) is provided with an excitation winding (4), one end of the rotor (5) is provided with a connecting plate (7), one end of the connecting plate (7) is provided with a fixing plate (8), a first positioning bearing (9) is arranged in the fixing plate (8), and a motor spindle (10) is installed at one end of the first positioning bearing (9).

2. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the first positioning bearing (9) and the second positioning bearing (13) are located on the motor spindle (10), and the first positioning bearing (9) and the second positioning bearing (13) are located at two ends of the motor spindle (10).

3. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the carbon brush (14) is fixedly connected with the commutator (3), and the carbon brush (14) is located at the outer side of the commutator (3).

4. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the fan blade end cover (1) and the motor (21) are arranged into an integral structure, and the fan blade end cover (1) is fixedly connected with the radiating fins (2).

5. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the rotor (5) is fixedly connected with the rotor winding (6), and the rotor (5) is positioned in the middle of the motor (21).

6. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the excitation winding (4) is fixedly connected with the motor (21), and the excitation winding (4) is fixedly connected with the motor (21).

7. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: flabellum (11) and fan blade board (12) fixed connection, and flabellum (11) are provided with three.

8. The direct current motor dismounting model for teaching of numerical control principle according to claim 1, characterized in that: the commutator (3) is rotationally connected with the carbon brush (14), and the commutator (3) is positioned on the motor spindle (10).

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