CN211958948U - Industrial sparkless explosion-proof motor - Google Patents
Industrial sparkless explosion-proof motor Download PDFInfo
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- CN211958948U CN211958948U CN202020598376.8U CN202020598376U CN211958948U CN 211958948 U CN211958948 U CN 211958948U CN 202020598376 U CN202020598376 U CN 202020598376U CN 211958948 U CN211958948 U CN 211958948U
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Abstract
The utility model discloses an industrial sparkless explosion-proof motor, which comprises a rotor, a stator winding coil, a stator core, a bearing, a sealing ring, an outer cover and a power supply junction box, wherein a three-phase motor cable is arranged in the power supply junction box, a plurality of gland heads are arranged on the power supply junction box, and a plurality of external cables are respectively and electrically connected with the three-phase motor cable in the power supply junction box after passing through the gland heads; the external cable and the three-phase motor cable are extrusion cables and are connected with a copper nose; the external cable is connected with the copper nose of the three-phase motor cable through a bolt, and the bolt and the copper nose are covered with insulating glue solidified after pouring. The utility model discloses a cable joint's improvement carries out insulation treatment through the encapsulating to the junction to through the heavy parcel of heat-resisting adhesive tape, pyrocondensation pipe, wax pipe and insulating adhesive tape, effectively solved cable joint's not hard up and the problem that produces the electric spark, improved the explosion-proof performance of motor greatly.
Description
Technical Field
The utility model belongs to the field of machinery, concretely relates to industrial no spark type explosion-proof machine.
Background
A motor is a widely used device, and many motors need to operate in many environments with harsh environments. For example, an n-type motor for an industrial vehicle can reliably operate under the following conditions:
a) the atmospheric pressure is 80-110 kPa;
b) the ambient temperature is minus 20 ℃ to plus 40 ℃;
c) ambient air relative humidity no greater than 95% (+ 25 ℃);
d) has IIA, IIB, IIC grade, and is used in explosive gas atmosphere region 2 or combustible dust atmosphere (except conductive dust atmosphere) region 22 of T1-T4 group;
e) in locations where corrosive gases and vapors are not sufficient to destroy metals and insulation;
g) in places without strong jolt and impact vibration;
h) places without water immersion;
i) pollution grade: and 3, grade.
To operate safely in such a harsh environment, the explosion-proof problem of the motor must be solved. Research shows that the position where sparks are most easily generated is the joint, two cable joints are loosened due to long-term use, and the loosened joints touch other joints or metal parts to generate electric sparks. Therefore, the explosion prevention of the motor must be solved.
Disclosure of Invention
In order to overcome the problem, the utility model provides a safe and reliable's industrial no spark type explosion-proof machine.
The technical scheme of the utility model a spark-free type explosion-proof machine for industry is provided, it includes rotor, stator winding coil, stator core, bearing, sealing washer, dustcoat and power terminal box, be provided with the three-phase motor cable in the power terminal box, its characterized in that: a plurality of Glan heads are arranged on the power supply junction box, and a plurality of external cables penetrate through the Glan heads and are electrically connected with a three-phase motor cable in the power supply junction box; the external cable and the three-phase motor cable are extrusion cables and are connected with a copper nose; the external cable is connected with the copper nose of the three-phase motor cable through a bolt, and the bolt and the copper nose are covered with insulating glue solidified after pouring.
Preferably, the insulating glue is a silica gel material with insulating and high temperature resistance.
Preferably, the external cable and the copper nose of the three-phase motor cable are covered with heat-resistant insulating layers.
Preferably, the heat-resistant insulating layer sequentially comprises a heat-resistant adhesive tape, a heat-shrinkable tube, a wax tube and an insulating adhesive tape from inside to outside.
Preferably, the heat-resistant adhesive tape is made of high-temperature-resistant teflon.
Preferably, the heat-resistant adhesive tape has a heat-resistant temperature of 180 °.
Preferably, the heat-resistant temperature of the wax tube is 155 °.
Preferably, the tape is made of PVC, and has a heat resistance temperature of 180 °.
The utility model discloses an industrial no spark type explosion-proof machine passes through cable joint's improvement, carries out insulation treatment through the encapsulating to the junction to through the heavy parcel of heat-resisting adhesive tape, pyrocondensation pipe, wax pipe and insulating adhesive tape, effectively solved cable joint's not hard up and the problem that produces the electric spark, improved the explosion-proof performance of motor greatly.
Drawings
Fig. 1 is a schematic perspective view of an industrial sparkless explosion-proof motor according to a preferred embodiment of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a schematic structural diagram of the connection between an external cable and a three-phase motor cable;
3 fig. 3 4 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 3 3. 3
Detailed Description
The following describes in further detail embodiments of the present invention.
As shown in fig. 1 to 4, an industrial sparkless explosion-proof motor according to the present invention includes a rotor (not shown), a stator winding coil (not shown), a stator core (not shown), a bearing (not shown), a seal ring (not shown), a housing 10, and a power supply terminal box 12. A three-phase motor cable 14 is arranged in the power supply junction box 12, a plurality of gland heads 16 are arranged on the power supply junction box 12, and a plurality of external cables 18 are electrically connected with the three-phase motor cable 14 in the power supply junction box 12 after penetrating through the gland heads 16. The external cable 18 and the three-phase motor cable 14 are extrusion type cables and are connected with a copper nose 20; the copper nose 20 of the external cable 18 is connected with the copper nose 20 of a three-phase motor cable 14 through a bolt 22, and the bolt 22 and the copper nose 20 are covered with insulating glue 24 solidified after pouring. The insulating glue 24 is made of insulating high-temperature-resistant silica gel, the bolt 22 and the copper nose 20 are coated by glue pouring at a high temperature, and the motor outgoing line is formed by a Glan head outgoing line, so that the connection between cables is greatly enhanced, and the cables are prevented from being loosened to generate sparks.
Then, the outer cable 18 and the copper nose 20 of the three-phase motor cable 14 are each covered with a heat-resistant insulating layer. In this embodiment, the heat-resistant insulating layer comprises a heat-resistant adhesive tape 26, a heat-shrinkable tube 28, a wax tube 30 and an insulating adhesive tape 32 in sequence from inside to outside. The heat-resistant adhesive tape 26 is made of high-temperature-resistant teflon, and the heat-resistant temperature of the heat-resistant adhesive tape 26 is 180 °. The heat resistant temperature of the wax tube 30 is 155 deg.. The tape 32 is made of PVC and has a heat resistance temperature of 180 °. The temperatures are determined according to the working temperature of the motor obtained by experiments. Through the combination of the heat-resistant adhesive tape 26, the heat-shrinkable tube 28, the wax tube 30 and the insulating adhesive tape 32, the cable can be tightly coated under the condition of high temperature, so that the purpose of insulation is achieved, and the spark caused by electric leakage is avoided.
The above embodiment is only one embodiment of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides an explosion-proof motor of industrial no spark type, its includes rotor, stator winding coil, stator core, bearing, sealing washer, dustcoat and power terminal box, be provided with three-phase motor cable in the power terminal box, its characterized in that: a plurality of Glan heads are arranged on the power supply junction box, and a plurality of external cables penetrate through the Glan heads and are electrically connected with a three-phase motor cable in the power supply junction box; the external cable and the three-phase motor cable are extrusion cables and are connected with a copper nose; the external cable is connected with the copper nose of the three-phase motor cable through a bolt, and the bolt and the copper nose are covered with insulating glue solidified after pouring.
2. The industrial sparkless type explosion-proof motor according to claim 1, wherein: the insulating glue is an insulating high-temperature-resistant silica gel material.
3. The industrial sparkless type explosion-proof motor according to claim 1, wherein: and heat-resistant insulating layers are covered outside the external cable and the copper nose of the three-phase motor cable.
4. The industrial sparkless type explosion-proof motor according to claim 3, wherein: the heat-resistant insulating layer sequentially comprises a heat-resistant adhesive tape, a heat-shrinkable tube, a wax tube and an insulating adhesive tape from inside to outside.
5. The industrial sparkless type explosion-proof motor according to claim 4, wherein: the heat-resistant adhesive tape is made of high-temperature-resistant Teflon.
6. The industrial sparkless type explosion-proof motor according to claim 5, wherein: the heat-resistant temperature of the heat-resistant adhesive plaster is 180 degrees.
7. The industrial sparkless type explosion-proof motor according to claim 4, wherein: the heat resistant temperature of the wax tube was 155 °.
8. The industrial sparkless type explosion-proof motor according to claim 4, wherein: the insulating rubberized fabric is made of PVC, and the heat-resisting temperature of the insulating rubberized fabric is 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598376.8U CN211958948U (en) | 2020-04-21 | 2020-04-21 | Industrial sparkless explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598376.8U CN211958948U (en) | 2020-04-21 | 2020-04-21 | Industrial sparkless explosion-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211958948U true CN211958948U (en) | 2020-11-17 |
Family
ID=73165497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020598376.8U Active CN211958948U (en) | 2020-04-21 | 2020-04-21 | Industrial sparkless explosion-proof motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211958948U (en) |
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2020
- 2020-04-21 CN CN202020598376.8U patent/CN211958948U/en active Active
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