CN211791145U

CN211791145U - Motor protector convenient to install

Info

Publication number: CN211791145U
Application number: CN202020830476.9U
Authority: CN
Inventors: 刘涛
Original assignee: Zhuhai Teknik Environmental Protection Electric Engineering Co ltd
Current assignee: Zhuhai Teknik Environmental Protection Electric Engineering Co ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-10-27
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to a motor protection technical field discloses a motor protector of just installing, including motor casing, rotor, stator, brush, terminal box and pivot, motor casing downside fixed connection base, motor casing right-hand member rotate and connect the pivot, pivot fixed connection rotor, and the pivot left side is rotated and is connected the interior terminal plate, interior terminal plate outside fixed connection motor casing inner wall, the solid circle of stator outside fixed connection, solid circle outside fixed connection motor casing inner wall, embedded a plurality of magnetic field inductors in the solid circle, the interior terminal plate is passed in magnetic field inductor left side, motor casing upper end fixed connection terminal box, a plurality of brushes of motor casing right side inner wall fixed connection, the motor casing right-hand member sets up leading gas pocket. The utility model discloses simple structure can in time protect the processing to the motor according to the inside magnetic field of motor and temperature variation, reduces motor use cost to it is convenient that motor protection subassembly change is dismantled, has usable value in motor protection technical field.

Description

Motor protector convenient to install

Technical Field

The utility model relates to a motor protection technical field specifically is a motor protector of just installing.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to the law of electromagnetic induction, and the motor protection is comprehensive protection for the motor, namely, alarming or protecting when the motor is overloaded, lack of phase, locked rotor, short circuit, overvoltage, undervoltage, electric leakage, three-phase imbalance, overheating, bearing abrasion and stator and rotor eccentricity.

Current motor protector fixes at the motor outside and detects more, drops because of the collision easily, and detection effect is relatively poor moreover, has the transmission time delay, can reduce the life of motor, increases the use cost of motor to motor work can produce a large amount of heat energy, can make motor local temperature too high, influences the operational capability of motor inner assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motor protector of just installing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a motor protector convenient to install comprises a motor shell, a rotor, a stator, electric brushes, a junction box and a rotating shaft, wherein the lower side of the motor shell is fixedly connected with a base, the right end of the motor shell is rotatably connected with the rotating shaft, the rotating shaft is fixedly connected with the rotor, the left side of the rotating shaft is rotatably connected with an inner end plate, the outer side of the inner end plate is fixedly connected with the inner wall of the motor shell, the outer side of the stator is fixedly connected with a fixed ring, the outer side of the fixed ring is fixedly connected with the inner wall of the motor shell, a plurality of magnetic field inductors are embedded in the fixed ring, the left sides of the magnetic field inductors penetrate through the inner end plate, the upper end of the motor shell is fixedly connected with the junction box, the inner wall of the right side of the motor shell is fixedly connected with a plurality of, a plurality of inner connecting pieces are fixed inside the enclosure, the inner connecting pieces are connected with second bolts in a threaded mode, the second bolts are fixedly connected with a support, a plurality of temperature sensors are fixedly connected to the right side of the support, the support is connected with a fan in a rotating mode, a key groove is formed in the right end of the fan and embedded into a rotating shaft, a ventilation area is arranged at the left end of the enclosure, and a plurality of rear air holes are formed in the ventilation area.

As a further aspect of the present invention: the stator is a permanent magnet coil, and the rotor is a copper wire winding group.

As a further aspect of the present invention: the joint of the motor shell and the rotating shaft is provided with a bearing, the joint of the inner end plate and the rotating shaft is provided with a bearing, and the joint of the bracket and the fan is provided with a bearing.

As a further aspect of the present invention: the bearing is a ball bearing.

As a further aspect of the present invention: the left side of the rotating shaft is provided with a socket, and a blocking key is arranged in the socket.

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

through the utility model discloses a motor protector of just installing, set up the magnetic field change that the magnetic field inductor can the induction machine inside, when overloading appears, when stifled commentaries on classics and excessive pressure scheduling problem, the magnetic field inductor can be according to the inside magnetic field change of motor in time feedback, set up the temperature-sensing ware and can respond to the inside temperature of motor, when the inside temperature of motor risees, can carry out temperature feedback to the external world, set up the enclosure, can be when dismantling the enclosure to the magnetic field inductor, the dismantlement is changed to fan and temperature-sensing ware, easy to assemble, set up the fan, can be at motor during operation, ventilate the heat dissipation to the motor. The utility model discloses simple structure can in time protect the processing to the motor according to the inside magnetic field of motor and temperature variation, reduces motor use cost to it is convenient that motor protection subassembly change is dismantled, and is not fragile, has usable value in motor protection technical field.

Drawings

Fig. 1 is a schematic structural view of a motor protector which is easy to install.

Fig. 2 is a left side view structural diagram of an inner end plate in the motor protector which is convenient to install.

Fig. 3 is a schematic view of the structure of the capsule in the motor protector which is easy to install.

In the figure: 1-base, 2-fixed ring, 3-rotor, 4-motor shell, 5-preposed air hole, 6-rotating shaft, 7-bearing, 8-electric brush, 9-stator, 10-magnetic field inductor, 11-junction box, 12-inner end plate, 13-first bolt, 14-second bolt, 15-enclosure, 16-bracket, 17-ventilation zone, 18-fan, 19-temperature inductor, 20-inner connecting piece, 5 a-middle air hole, 5 b-rear air hole and 21 a-outer connecting piece.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "middle", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of describing the invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, a motor protector convenient to install comprises a motor housing 4, a rotor 3, a stator 9, an electric brush 8, a junction box 11 and a rotating shaft 6, wherein the stator 9 is a permanent magnet ring, the rotor 3 is a copper wire winding group, the lower side of the motor housing 4 is fixedly connected with a base 1, the base 1 has a supporting function, the right end of the motor housing 4 is rotatably connected with the rotating shaft 6, the rotating shaft 6 is fixedly connected with the rotor 3, the left side of the rotating shaft 6 is rotatably connected with an inner end plate 12, the outer side of the inner end plate 12 is fixedly connected with the inner wall of the motor housing 4, the inner end plate 12 is arranged to support the rotating shaft 6, the outer side of the stator 9 is fixedly connected with a fixed ring 2, the outer side of the fixed ring 2 is fixedly connected with the inner wall of the motor housing 4, a plurality of magnetic field inductors 10 are embedded in the fixed ring 2, when overload, locked rotor, overvoltage and the like occur, the magnetic field inductor 10 can feed back in time according to the change of the magnetic field inside the motor.

Referring to fig. 1 and 3, a terminal box 11 is fixedly connected to the upper end of the motor housing 4, a terminal board is arranged in the terminal box 11 to control the operation of the motor, a plurality of brushes 8 are fixedly connected to the inner wall of the right side of the motor housing 4, an enclosure 15 is arranged on the left side of the motor housing 4, the enclosure 15 is arranged to replace and disassemble a magnetic field sensor 10, a fan 18 and a temperature sensor 19 when the enclosure 15 is disassembled, a plurality of outer connecting pieces 21a are fixedly connected to the right side of the enclosure 15, the outer connecting pieces 21a are in threaded connection with a first bolt 13, the first bolt 13 is fixedly connected to the motor housing 4, the outer connecting pieces 21a and the first bolt 13 are arranged to facilitate the disassembly of the enclosure 15, a plurality of inner connecting pieces 20 are fixed to the interior of the enclosure 15, the inner connecting pieces 20 are in threaded connection with a second bolt 14, the second bolt 14 is fixedly connected to a bracket 16, the bracket 16 has a supporting and, support 16 right side fixed connection a plurality of temperature-sensing wares 19 sets up temperature-sensing ware 19 and can the inside temperature of induction machine, when the inside temperature of motor risees, can carry out the temperature feedback to the external world, motor casing 4 and pivot 6 junction set up bearing 7, and interior end plate 12 and pivot 6 junction set up bearing 7, and support 16 and fan 18 junction set up bearing 7, and bearing 7 is ball formula bearing 7, and bearing 7 can reduce the running friction, makes to rotate more smoothly.

Example 2

Referring to fig. 1, the difference between this embodiment and embodiment 1 is that the bracket 16 is rotatably connected to the fan 18, a key groove is formed at the right end of the fan 18 and is embedded into the rotating shaft 6, an insertion opening is formed at the left side of the rotating shaft 6, a blocking key is arranged in the insertion opening, the key groove and the blocking key are formed, so that the rotating shaft 6 can drive the fan 18 to rotate conveniently, a front air hole 5 is formed at the right end of the motor housing 4, a plurality of middle air holes 5a are formed in the inner end plate 12, a ventilation area 17 is formed at the left end of the enclosure 15, a plurality of rear air holes 5b are formed in the ventilation area 17, and the fan 18 is arranged, so that ventilation and heat dissipation can be performed on the motor when the motor works, and the front air holes.

The utility model discloses a theory of operation is: the utility model provides a motor protector convenient to installation, when using this motor, when the protection subassembly of motor needs to be installed, twist and move first bolt 13, dismantle the capsule 15 of motor, then insert a plurality of magnetic field inductor 10 in solid circle 2, fix support 16 on capsule 15 through second bolt 14, then the key that keeps off that aligns pivot 6 with the keyway of fan 18 inserts into, it is fixed with capsule 15 to use first bolt 13, in the use, pivot 6 can drive fan 18 and carry out the air to the inside of motor and transport, realize aeration cooling, then magnetic field inductor 10 can the inside magnetic field change of induction machine, temperature-sensing ware 19 can the inside temperature change of induction machine, when the abnormal conditions appears, magnetic field inductor 10 and temperature-sensing ware 19 all can control the motor stall, realize the work protection to the motor. The utility model discloses simple structure can in time protect the processing to the motor according to the inside magnetic field of motor and temperature variation, reduces motor use cost to it is convenient that motor protection subassembly change is dismantled, and is not fragile, has usable value in motor protection technical field.

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, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A motor protector convenient to install comprises a motor shell (4), a rotor (3), a stator (9), electric brushes (8), a junction box (11) and a rotating shaft (6), and is characterized in that the lower side of the motor shell (4) is fixedly connected with a base (1), the right end of the motor shell (4) is rotatably connected with the rotating shaft (6), the rotating shaft (6) is fixedly connected with the rotor (3), the left side of the rotating shaft (6) is rotatably connected with an inner end plate (12), the outer side of the inner end plate (12) is fixedly connected with the inner wall of the motor shell (4), the outer side of the stator (9) is fixedly connected with a fixed ring (2), the outer side of the fixed ring (2) is fixedly connected with the inner wall of the motor shell (4), a plurality of magnetic field inductors (10) are embedded into the fixed ring (2), the left sides of the magnetic field inductors (10) penetrate through the inner end plate (12), the right end of the motor shell (4) is provided with a preposed air hole (5), an inner end plate (12) is provided with a plurality of middle air holes (5 a), an enclosure (15) is arranged on the left side of the motor shell (4), a plurality of outer connecting pieces (21 a) are fixedly connected to the right side of the enclosure (15), the outer connecting pieces (21 a) are in threaded connection with first bolts (13), the first bolts (13) are fixedly connected with the motor shell (4), a plurality of inner connecting pieces (20) are fixed inside the enclosure (15), the inner connecting pieces (20) are in threaded connection with second bolts (14), the second bolts (14) are fixedly connected with a support (16), the right side of the support (16) is fixedly connected with a plurality of temperature sensors (19), the support (16) is rotatably connected with a fan (18), the right end of the fan (18) is provided with a key groove which is embedded into the rotating shaft (6), the left end of the enclosure (15) is provided with a ventilation area (17), and the ventilation area (17) is provided with a plurality of rear air holes (5 b).

2. A readily installable motor protector according to claim 1 characterised in that the stator (9) is a permanent magnet coil and the rotor (3) is a copper winding.

3. An easily installable motor protector according to claim 1 wherein the bearing (7) is provided at the junction of the motor housing (4) and the shaft (6), the bearing (7) is provided at the junction of the inner end plate (12) and the shaft (6), and the bearing (7) is provided at the junction of the bracket (16) and the fan (18).

4. A ready-to-mount motor protector according to claim 3 in which the bearing (7) is a ball bearing (7).

5. An easily installed motor protector according to claim 1, characterized in that the left side of the rotating shaft (6) is provided with a socket, and a stop key is arranged in the socket.