Multi-section explosion-proof motor

Abstract

The invention relates to the technical field of explosion-proof motors, in particular to a multi-section explosion-proof motor, which is characterized in that a rotor consists of a rotor iron core with a winding in a section A, a rotor iron core with a winding in a section B, a rotor iron core with a winding in a section C and a shaft assembly, and a stator consists of a stator iron core with a winding in a section A, a stator iron core with a winding in a section B, a stator iron core with a winding in a section C and a base. The junction box is installed on the outer side of the machine base, the power converter is installed on the junction box, the rotor provided with the two bearings is connected with the stator through the two end covers, the two bearing outer covers are installed on the two end covers respectively, the fan is installed on the shaft assembly and located on the outer sides of the end covers, and the fan cover is installed on the machine base and covers the fan. According to the explosion-proof motor product manufactured by adopting the technical scheme, the requirement of the market on a multi-power explosion-proof motor is met, the flexibility of the explosion-proof motor for coping with a load is increased, and the requirement of GB / T755 on the power level of the motor is also met.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof motors, and in particular to a multi-stage explosion-proof motor. Background Art

[0002] Safety is the key to production, and production must be safe. With the advancement of society and the government's emphasis on production safety, the demand for explosion-proof motors continues to grow. Consequently, the explosion-proof motor industry is developing rapidly, and its quality is steadily improving. To gain market share, leading explosion-proof motor manufacturers are prioritizing product development and component technology advancements. Currently, users of explosion-proof motors lack sufficient knowledge about motor selection, leading to the situation where a large horse pulls a small cart, while a small horse pulls a large cart. Furthermore, different operating conditions require explosion-proof motors with varying power ratings. Summary of the Invention

[0003] In view of the shortcomings of existing technologies and products, the purpose of the present invention is to provide a multi-stage explosion-proof motor to overcome the problems raised in the background technology, thereby developing and manufacturing explosion-proof motors of various powers that meet the requirements of the background technology.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows: a multi-stage explosion-proof motor includes a rotor, a stator, a power converter, a bearing, an end cover, a bearing outer cover, a fan, a junction box, and a wind cover; the rotor is composed of a section A winding rotor core, a section B winding rotor core, a section C winding rotor core, and a shaft assembly; the section A winding rotor core is composed of a section A rotor winding and a section A rotor core; the section A rotor winding is installed on the section A rotor core; the section B winding rotor core is composed of a section B rotor winding and a section B rotor core assembly; The segment B rotor winding is mounted on the segment B rotor core, the segment C rotor core with windings is composed of the segment C rotor windings and the segment C rotor core, the segment C rotor windings are mounted on the segment C rotor core, the segment A rotor core, the segment B rotor core, and the segment C rotor core are sequentially mounted on the shaft assembly, and a bearing is mounted on each end of the shaft assembly; the stator is composed of the segment A stator core with windings, the segment B stator core with windings, the segment C stator core with windings, and a machine base, the segment A stator core with windings is composed of the segment A stator core with windings The stator core of section A is composed of a stator winding of section B and a stator core of section A, the stator winding of section A is installed on the stator core of section A, the stator core of section B with windings is composed of a stator winding of section B and a stator core of section B, the stator winding of section B is installed on the stator core of section B, the stator core of section C with windings is composed of a stator winding of section C and a stator core of section C, the stator winding of section C is installed on the stator core of section C, the stator core of section A, the stator core of section B and the stator core of section C are installed in the base in sequence; the power converter is composed of a stator winding of section A and a stator core of section B. The power section circuit breaker A, the power section circuit breaker B, the power section circuit breaker C and the power converter shell are sequentially installed on the power converter shell; the junction box is installed on the outside of the machine base, the power converter is installed on the junction box, the rotor after the two bearings are installed is connected to the stator through the two end covers, the two bearing outer covers are respectively installed on the two end covers, the fan is installed on the shaft assembly and is located outside the end covers, and the wind cover is installed on the machine base and covers the fan.

[0005] In the multi-stage explosion-proof motor described in the present invention, the winding rotor core of section A and the winding stator core of section A together constitute the A power drive source, the winding rotor core of section B and the winding stator core of section B together constitute the B power drive source, and the winding rotor core of section C and the winding stator core of section C together constitute the C power drive source. The A power drive source independently drives the shaft assembly to rotate and outputs a first-level rated power, the B power drive source independently drives the shaft assembly to rotate and outputs a second-level rated power, and the C power drive source independently drives the shaft assembly to rotate and outputs a third-level rated power.

[0006] In the multi-stage explosion-proof motor described in the present invention, the power drive source A and the power drive source B jointly drive the shaft assembly to rotate and output the fourth gear rated power, the power drive source A and the power drive source C jointly drive the shaft assembly to rotate and output the fifth gear rated power, the power drive source B and the power drive source C jointly drive the shaft assembly to rotate and output the sixth gear rated power, and the power drive source A, power drive source B, and power drive source C jointly drive the shaft assembly to rotate and output the hundredth gear rated power.

[0007] In the multi-stage explosion-proof motor described in the present invention, the power A section circuit breaker controls the power A driving source, the power B section circuit breaker controls the power B driving source, and the power C section circuit breaker controls the power C driving source.

[0008] In the multi-stage explosion-proof motor described in the present invention, the power levels of the first-level rated power, the second-level rated power, the third-level rated power, the fourth-level rated power, the fifth-level rated power, the sixth-level rated power, and the hundredth-level rated power are arranged from small to large.

[0009] In the multi-section explosion-proof motor described in the present invention, a common channel for windings A and B is provided between the stator core with windings in section A and the stator core with windings in section B, a common channel for windings B and C is provided between the stator core with windings in section B and the stator core with windings in section C, and a common channel for windings A, B and C is provided on the inner side of the machine base.

[0010] Compared with the existing technology, the beneficial effects of the present invention are: the explosion-proof motor products manufactured by adopting this technical solution not only meet the market demand for explosion-proof motors with multiple powers, increase the flexibility of explosion-proof motors in dealing with loads, but also meet the requirements of GB / T755 for motor power levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the multi-stage explosion-proof motor of the present invention; Figure 2 yes Figure 1 Schematic diagram of the left view structure.

[0012] The corresponding names of the reference numerals in the accompanying drawings are as follows: Shaft assembly, 2-Section A has winding rotor core, 3-Section B has winding rotor core, 4-Section C has winding rotor core, 5-Section A has winding stator core, 6-Common channel for A and B windings, 7-Section B has winding stator core, 8-Common channel for B and C windings, 9-Section C has winding stator core, 10-Machine base, 20-End cover, 21-Bearing, 22-Bearing outer cover, 30-Fan, 31-Wind hood, 32-Power converter, 33-Power section A circuit breaker, 34-Power section B circuit breaker, 35-Power section C circuit breaker, 36-Junction box, 37-Explosion-proof temperature sensor. DETAILED DESCRIPTION

[0013] To further illustrate the technical means and effects of the present invention to achieve the above-mentioned objectives, the following detailed description of the specific embodiments, structures, features and effects of the present invention is given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described in the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0014] like Figure 1 、 Figure 2The multi-stage explosion-proof motor of the embodiment of the present invention shown includes a rotor, a stator, a power converter 32, a bearing 21, an end cover 20, a bearing outer cover 22, a fan 30, a terminal box 36, and a wind shield 31; the rotor is composed of a winding rotor core 2 in section A, a winding rotor core 3 in section B, a winding rotor core 4 in section C, and a shaft assembly 1. The winding rotor core 2 in section A is composed of the rotor winding in section A and the rotor core in section A. The rotor winding in section A is mounted on the rotor core in section A. The winding rotor core 3 in section B is composed of the rotor winding in section B and the rotor core in section B. The rotor winding in section B is Installed on the rotor core of section B, the rotor core 4 with windings in section C is composed of the rotor windings and the rotor core of section C. The rotor windings in section C are installed on the rotor core of section C. The rotor core of section A, the rotor core of section B and the rotor core of section C are installed on the shaft assembly 1 in sequence. A bearing 21 is installed at each end of the shaft assembly 1. The stator is composed of the stator core 5 with windings in section A, the stator core 7 with windings in section B, the stator core 9 with windings in section C and the base 10. The stator core 5 with windings in section A is composed of the stator windings and the stator core of section A. The stator windings in section A are installed on the stator core of section A. On the upper part, the stator core 7 with windings in section B is composed of the stator windings in section B and the stator core in section B, and the stator windings in section B are installed on the stator core in section B. The stator core 9 with windings in section C is composed of the stator windings in section C and the stator core in section C, and the stator windings in section C are installed on the stator core in section C. The stator core in section A, the stator core in section B and the stator core in section C are sequentially installed in the base 10; the power converter 32 is composed of the power section A circuit breaker 33, the power section B circuit breaker 34, the power section C circuit breaker 35 and the power converter shell, and the power section A circuit breaker 33, the power section B circuit breaker 34 and the power section C circuit breaker 35 are sequentially installed in the base 10. Mounted on the inverter housing; the junction box 36 is mounted on the outside of the base 10, the inverter 32 is mounted on the junction box 36, the rotor after installing the two bearings 21 is connected to the stator through the two end covers 20, the two bearing outer covers 22 are respectively mounted on the two end covers 20, the shaft assembly 1 is divided into two ends, one end is the output end, and the other end is the fan end, wherein a flameproof temperature sensor 37 is installed on the bearing outer cover 22 at the output end of the shaft assembly 1, the fan 30 is mounted on the shaft assembly 1 and is on the outside of the end cover 20, and the wind cover 31 is mounted on the base 10 and covers the fan 30.

[0015] like Figure 1 As shown, in this embodiment, the winding rotor core 2 of section A and the winding stator core 5 of section A together constitute the power drive source A, the winding rotor core 3 of section B and the winding stator core 7 of section B together constitute the power drive source B, the winding rotor core 4 of section C and the winding stator core 9 of section C together constitute the power drive source C, the power drive source A independently drives the shaft assembly 1 to rotate and output the first gear rated power, the power drive source B independently drives the shaft assembly 1 to rotate and output the second gear rated power, and the power drive source C independently drives the shaft assembly 1 to rotate and output the third gear rated power.

[0016] like Figure 1 As shown, in this embodiment, power drive source A and power drive source B jointly drive the shaft assembly 1 to rotate and output the fourth gear rated power, power drive source A and power drive source C jointly drive the shaft assembly 1 to rotate and output the fifth gear rated power, power drive source B and power drive source C jointly drive the shaft assembly 1 to rotate and output the sixth gear rated power, and power drive source A, power drive source B, and power drive source C jointly drive the shaft assembly 1 to rotate and output the hundredth gear rated power.

[0017] like Figure 1 、 Figure 2 As shown, in this embodiment, the power A circuit breaker 33 controls the power driving source A, the power B circuit breaker 34 controls the power driving source B, and the power C circuit breaker 35 controls the power driving source C.

[0018] like Figure 1 、 Figure 2 As shown, in this embodiment, the power levels of the first-level rated power, the second-level rated power, the third-level rated power, the fourth-level rated power, the fifth-level rated power, the sixth-level rated power, and the hundredth-level rated power are arranged from small to large.

[0019] like Figure 1 、 Figure 2 As shown, in this embodiment, a common channel for windings A and B is provided between the stator core 5 with windings in section A and the stator core 7 with windings in section B, a common channel for windings B and C is provided between the stator core 7 with windings in section B and the stator core 9 with windings in section C, and a common channel for windings A, B and C is provided on the inner side of the machine base.

[0020] The above-mentioned Figure 1 The embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent or similar changes made based on the principles, shapes, and structures of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage explosion-proof motor, characterized in that: It includes a rotor, a stator, a power converter, a bearing, an end cover, a bearing outer cover, a fan, a junction box, and a wind hood; the rotor is composed of a winding rotor core of section A, a winding rotor core of section B, a winding rotor core of section C, and a shaft assembly; the winding rotor core of section A is composed of a rotor winding of section A and a rotor core of section A, the rotor winding of section A is installed on the rotor core of section A, the rotor core of section B is composed of a rotor winding of section B and a rotor core of section B, and the rotor winding of section B is installed on the rotor core of section B The section C rotor core with windings is composed of the section C rotor winding and the section C rotor core. The section C rotor winding is installed on the section C rotor core. The section A rotor core, the section B rotor core, and the section C rotor core are installed on the shaft assembly in sequence. A bearing is installed at each end of the shaft assembly. The stator is composed of the section A stator core with windings, the section B stator core with windings, the section C stator core with windings, and a machine base. The section A stator core with windings is composed of the section A stator winding and the section A stator core. The stator winding of section A is installed on the stator core of section A, the stator core of section B with windings is composed of stator winding of section B and stator core of section B, the stator winding of section B is installed on the stator core of section B, the stator core of section C with windings is composed of stator winding of section C and stator core of section C, the stator winding of section C is installed on the stator core of section C, the stator core of section A, the stator core of section B and the stator core of section C are installed in the base in sequence; the power converter is composed of circuit breaker of section A, circuit breaker of section B and circuit breaker of section C. The machine base is composed of a power section circuit breaker, a power section circuit breaker, and a converter shell. The power section circuit breaker A, the power section circuit breaker B, and the power section circuit breaker C are installed on the converter shell in sequence; the junction box is installed on the outside of the machine base, and the converter is installed on the junction box. After the two bearings are installed, the rotor is connected to the stator through the two end covers. The two bearing outer covers are respectively installed on the two end covers. The fan is installed on the shaft assembly and is located on the outside of the end covers. The wind cover is installed on the machine base and covers the fan.

2. A multi-stage explosion-proof motor according to claim 1, characterized in that: The section A winding rotor core and the section A winding stator core together constitute the section A power driving source, the section B winding rotor core and the section B winding stator core together constitute the section B power driving source, the section C winding rotor core and the section C winding stator core together constitute the section C power driving source, the section A power driving source independently drives the shaft assembly to rotate and outputs a first-level rated power, the section B power driving source independently drives the shaft assembly to rotate and outputs a second-level rated power, and the section C power driving source independently drives the shaft assembly to rotate and outputs a third-level rated power.

3. A multi-stage explosion-proof motor according to claim 1, characterized in that: The power drive source A and the power drive source B jointly drive the shaft assembly to rotate and output the fourth gear rated power, the power drive source A and the power drive source C jointly drive the shaft assembly to rotate and output the fifth gear rated power, the power drive source B and the power drive source C jointly drive the shaft assembly to rotate and output the sixth gear rated power, and the power drive source A, the power drive source B, and the power drive source C jointly drive the shaft assembly to rotate and output the hundredth gear rated power.

4. The multi-stage explosion-proof motor according to claim 1, characterized in that: The power A section circuit breaker controls the power A driving source, the power B section circuit breaker controls the power B driving source, and the power C section circuit breaker controls the power C driving source.

5. The multi-stage explosion-proof motor according to claim 1, characterized in that: The power levels of the first-level rated power, the second-level rated power, the third-level rated power, the fourth-level rated power, the fifth-level rated power, the sixth-level rated power, and the hundredth-level rated power are arranged from small to large.

6. The multi-stage explosion-proof motor according to claim 1, characterized in that: A common channel for windings A and B is provided between the stator core with windings in section A and the stator core with windings in section B, a common channel for windings B and C is provided between the stator core with windings in section B and the stator core with windings in section C, and a common channel for windings A, B and C is provided on the inner side of the base.

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