Oil-cooled permanent magnet motor for sand making machine

Abstract

An oil-cooled permanent magnet motor for a sand making machine comprises a rotor, a stator, a motor shell and end covers arranged at the two ends of the motor shell. The rotor and the stator are arranged in the motor shell; a wiring hole is formed in the end cover, a wiring terminal is arranged in the wiring hole, and the stator is electrically connected with an external power supply through the wiring terminal; the upper part of the wiring terminal is sleeved with a first terminal sleeve, the lower part of the wiring terminal is sleeved with a second terminal sleeve, and the outer diameter of the first terminal sleeve and the outer diameter of the second terminal sleeve are consistent with the inner diameter of the wiring hole; a first cavity formed by the first terminal sleeve, the second terminal sleeve and the inner wall of the wiring hole is filled with epoxy resin; an oil inlet pipe for cooling oil to enter the motor shell and an oil outlet pipe for cooling oil to be discharged from the motor shell are arranged on the motor shell, and an oil tank, an oil pump and a radiator are communicated between the oil inlet pipe and the oil outlet pipe. According to the utility model, the sealing effect is ensured, so that dust cannot enter the motor to influence the operation of the motor, and the heat dissipation effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor field, concretely relates to a sand making machine with oil cooling permanent magnet motor. BACKGROUND

[0002] The sand making machine is widely used in the production of metal and nonmetal ore, cement, refractory material, abrasive, glass raw material, building aggregate, artificial sand making, river pebble, mountain stone (limestone, granite, basalt, diabase, andesite etc.), ore tailings, stone chips, building aggregate, highway pavement material, cushion material, asphalt concrete and cement concrete aggregate and fine crushing and coarse grinding of various metallurgical slag, especially for medium-hard, super-hard and abrasive materials such as silicon carbide, corundum, sintered bauxite and magnesite, which is more superior than other types of crusher.

[0003] The sand making machine is easy to produce a large amount of dust when crushing sand and stone in the processing process, which not only threatens the health of the operator, but also easily enters the motor interior, affecting the motor operation. Secondly, the heat on the stator and rotor in the motor can only be transmitted to the shell through air, and the heat transfer efficiency is low, so that the heat cannot be quickly dissipated when the motor operates for a long time, and the problem of high temperature rise and easy burning exists. Therefore, it is urgent to develop a dustproof oil-cooled permanent magnet motor for sand making machine. SUMMARY

[0004] The application aims to provide a dustproof oil-cooled permanent magnet motor for sand making machine to solve the problem that a large amount of dust produced when crushing sand and stone in the processing process of sand making machine easily enters the motor interior, affecting the motor operation, and further solve the problem of high temperature rise and easy burning of the motor.

[0005] To achieve the above-mentioned purpose, the application adopts the following technical scheme.

[0006] An oil-cooled permanent magnet motor for sand making machine, comprising a rotor, a stator, a motor shell and end covers arranged at both ends of the motor shell; the rotor and the stator are arranged in the motor shell; a wiring hole is formed in the end cover, and a wiring terminal is arranged in the wiring hole; the stator is electrically connected with an external power supply through the wiring terminal; a first terminal sleeve is arranged on the upper part of the wiring terminal, and a second terminal sleeve is arranged on the lower part of the wiring terminal; the outer diameter of the first terminal sleeve and the second terminal sleeve is consistent with the inner diameter of the wiring hole; a first cavity formed by the first terminal sleeve, the second terminal sleeve and the inner wall of the wiring hole is filled with epoxy resin; an oil inlet pipe and an oil outlet pipe are arranged on the motor shell for the cooling oil to enter and discharge from the motor shell; an oil tank, an oil pump and a radiator are connected between the oil inlet pipe and the oil outlet pipe.

[0007] In some embodiments, the top of the motor shell is provided with a first oil inlet, and the bottom of the motor shell is provided with a second oil inlet; the oil inlet pipe comprises a first oil inlet pipe, a second oil inlet pipe and an oil inlet main pipe; one end of the first oil inlet pipe is in communication with the first oil inlet, one end of the second oil inlet pipe is in communication with the second oil inlet, and the other end of the first oil inlet pipe and the other end of the second oil inlet pipe are in communication with the oil inlet main pipe through a tee joint.

[0008] In some embodiments, the motor shell comprises an outer shell and an inner shell, and an annular second cavity is formed between the outer shell and the inner shell, and the second cavity is filled with cooling water.

[0009] In some embodiments, the first terminal sleeve and the second terminal sleeve are fixedly installed on the terminal by a nut. In some embodiments, the end cover comprises an upper end cover and a lower end cover, and the terminal is arranged on the lower end cover.

[0010] In some embodiments, the lower end cover is further provided with a terminal box for packaging the terminal.

[0011] The present application has at least the following technical effects or advantages:

[0012] 1. The gap between the terminal hole and the terminal is completely sealed by the first terminal sleeve, the second terminal sleeve and the epoxy resin, ensuring the sealing effect, so that a large amount of dust generated during the crushing of sand and gravel in the sand making machine cannot enter the motor and affect the operation of the motor. On the other hand, the sealing structure composed of the first terminal sleeve, the second terminal sleeve and the epoxy resin is easy to install and the packaging process is simple.

[0013] 2. By arranging the oil-cooled and water-cooled heat dissipation channels in the motor shell, the heat dissipation effect of the motor is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a structural schematic diagram of an oil-cooled permanent magnet motor for a sand making machine in an embodiment of the present application;

[0015] Figure 2 FIG. 4 is a structural schematic diagram of a lower end cover in an embodiment of the present application;

[0016] Figure 3 FIG. 6 is a structural schematic diagram of a terminal in an embodiment of the present application;

[0017] Figure 4 FIG. 8 is a front view of the lower end cover in an embodiment of the present application;

[0018] Figure 5 FIG. 9 is a top view of the lower end cover in an embodiment of the present application. DETAILED DESCRIPTION

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] Example 1

[0021] See Figures 1-5 An oil-cooled permanent magnet motor for a sand making machine includes a rotor 1, a stator 2, a motor housing 3, and end covers at both ends of the motor housing 3. The rotor 1 and stator 2 are housed within the motor housing 3. The end covers include an upper end cover 41 and a lower end cover 42. The lower end cover 42 has a wiring hole, and a terminal block 5 is provided in the wiring hole. The stator 2 is electrically connected to an external power source through the terminal block 5. A first terminal sleeve 61 is fitted onto the upper part of the terminal block 5 and fixed with a nut, and a second terminal sleeve 62 is fitted onto the lower part and fixed with a nut. The outer diameter of the first terminal sleeve 61 and the second terminal sleeve 62 is the same as the inner diameter of the wiring hole. The first cavity formed by the first terminal sleeve 61, the second terminal sleeve 62, and the inner wall of the wiring hole is filled with epoxy resin 7. The lower end cover 42 is also provided with a junction box 10 for encapsulating the terminal block 5.

[0022] The motor housing 3 includes an outer shell 31 and an inner shell 32, with an annular second cavity formed between the outer shell 31 and the inner shell 32, and the second cavity is filled with cooling water.

[0023] The motor housing 3 has a first oil inlet 71 at the top, a second oil inlet 72 at the bottom, and an oil outlet 73 on the upper side. One end of the first oil inlet pipe 81 is connected to the first oil inlet 71, and one end of the second oil inlet pipe 82 is connected to the second oil inlet 72. The other ends of the first oil inlet pipe 81 and the other ends of the second oil inlet pipe 82 are connected to one end of the main oil inlet pipe 8 via a tee 9. The other end of the main oil inlet pipe 8 is connected to the oil outlet 73 via a radiator 9, an oil pump 11, and an oil tank 12 in sequence.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An oil-cooled permanent magnet motor for a sand making machine, characterized by: The motor comprises a rotor, a stator, a motor shell and end covers arranged at both ends of the motor shell; the rotor and the stator are arranged in the motor shell; the end covers are provided with wiring holes, and the wiring holes are provided with wiring terminals; the stator is electrically connected with an external power supply through the wiring terminals; the wiring terminals are provided with first terminal sleeves at upper portions and second terminal sleeves at lower portions; the first terminal sleeves and the second terminal sleeves have the same outer diameter as the inner diameter of the wiring holes; the first terminal sleeves, the second terminal sleeves and the inner wall of the wiring holes form a first cavity which is filled with epoxy resin; the motor shell is provided with an oil inlet pipe and an oil outlet pipe; the oil inlet pipe and the oil outlet pipe are connected with an oil tank, an oil pump and a radiator.

2. The oil-cooled permanent magnet motor for a sand making machine according to claim 1, characterized in that: The top of the motor shell is provided with a first oil inlet, and the bottom of the motor shell is provided with a second oil inlet; the oil inlet pipe comprises a first oil inlet pipe, a second oil inlet pipe and an oil inlet main pipe; one end of the first oil inlet pipe is communicated with the first oil inlet, one end of the second oil inlet pipe is communicated with the second oil inlet, and the other end of the first oil inlet pipe and the other end of the second oil inlet pipe are communicated with the oil inlet main pipe through a tee joint.

3. The oil-cooled permanent magnet motor for sand making machine according to claim 2, characterized in that: The motor shell comprises an outer shell and an inner shell, and an annular second cavity is formed between the outer shell and the inner shell, and the second cavity is filled with cooling water.

4. The oil-cooled permanent magnet motor for sand making machine according to any one of claims 1-3, characterized in that: The first terminal sleeves and the second terminal sleeves are fixedly installed on the wiring terminals through nuts.

5. The oil-cooled permanent magnet motor for sand making machine according to any one of claims 1-3, characterized in that: The end covers comprise upper end covers and lower end covers, and the wiring terminals are arranged on the lower end covers.

6. The oil-cooled permanent magnet motor for a sand making machine according to claim 5, characterized in that: The lower end covers are further provided with wiring boxes for packaging the wiring terminals. The motor comprises a rotor, a stator, a motor shell and end covers arranged at both ends of the motor shell; the rotor and the stator are arranged in the motor shell; the end covers are provided with wiring holes, and the wiring holes are provided with wiring terminals; the stator is electrically connected with an external power supply through the wiring terminals; the wiring terminals are provided with first terminal sleeves at upper portions and second terminal sleeves at lower portions; the first terminal sleeves and the second terminal sleeves have the same outer diameter as the inner diameter of the wiring holes; the first terminal sleeves, the second terminal sleeves and the inner wall of the wiring holes form a first cavity which is filled with epoxy resin; the motor shell is provided with an oil inlet pipe and an oil outlet pipe; the oil inlet pipe and the oil outlet pipe are connected with an oil tank, an oil pump and a radiator.

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