Driving part cooling structure

Abstract

The utility model provides a driving part cooling structure, which comprises a motor, a speed reducer, a first cooling loop for cooling the motor and a second cooling loop for cooling the speed reducer, an output shaft of the motor is connected with an input shaft of the speed reducer through a coupling; a cover cylinder for connecting the motor shell and the speed reducer shell is arranged between the motor shell and the speed reducer shell; a shell of the motor is provided with a first water outlet, and a shell of the speed reducer is provided with a second water outlet; the first cooling loop comprises a first heat dissipation pipe which is connected with the first water outlet and wound on the inner wall or the outer wall of the cover cylinder in a bent mode, and the second cooling loop comprises a second heat dissipation pipe which is connected with the second water outlet and wound on the inner wall or the outer wall of the cover cylinder in a bent mode. The temperature of the cooling water source can be kept in a low state for a long time, and the requirement of the driving part during working is met. And within the time when the driving part stops working, the cooling water source can continuously dissipate heat, so that self-circulation cooling is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the driving part field of coal mining, specifically relates to a driving part cooling structure. BACKGROUND

[0002] In recent years, with the development of science and technology, the power of each power equipment of fully mechanized coal mining face is also increasing. The energy loss of the equipment in the running process will be dissipated in the form of heat, such as the temperature rise of the stator and rotor of the motor. If the heat is not discharged in time, the temperature of the motor will continue to rise, causing the winding insulation to age and causing certain hidden troubles. The reducer reduces the speed of the motor through the internal gear, and a large amount of heat will be generated during the operation of each gear. If the heat is not discharged, the temperature will continue to rise, which will damage the bearing and gear and burn out the reducer.

[0003] In production, in order to ensure that the motor and the reducer can run normally for a long time, the heat generated due to energy loss in the running process needs to be discharged, so that each main part of the motor can run within the normal range.

[0004] The coal mining face is the main occasion of coal mine production, and there are many high-power motors such as coal mining machines, rehandling machines, crushers and belt conveyors. Due to the special occasion of the coal mining face in the coal mine, most of the motors of the coal mining face adopt the direct current water cooling mode. The cooling water is directly discharged after passing through the motor, which causes a large amount of waste of water resources. At the same time, these waste water also needs to be pumped to the ground by a water pump, which consumes a large amount of electric energy and causes secondary waste of resources. Some mines also establish underground cooling water circulation devices. The cooling water is pumped out by the water pump, enters the motor and the reducer, is cooled, flows through the cooling fin, the cooling tower, the air cooler or other heat dissipation cooling mechanisms, is cooled, and then flows back to the water tank. The existing coal mine underground circulating water cooling system has a complex structure, many devices, large occupied space and exposed pipelines, which increases the safety risk. SUMMARY

[0005] The utility model provides a kind of driving part cooling structure.

[0006] The utility model aims to realize the following manner: a kind of driving part cooling structure, including motor, reducer, the first cooling circuit of cooling motor, the second cooling circuit of cooling reducer;The output shaft of motor and the input shaft of reducer are connected by shaft coupling;The shell of motor and the shell of reducer are connected between the cover cylinder of both;First water outlet is provided on the shell of motor, and second water outlet is provided on the shell of reducer;The first cooling circuit includes the first heat dissipation pipe connected with first water outlet and bent and wound in the inner wall or outer wall of cover cylinder, and the second cooling circuit includes the second heat dissipation pipe connected with second water outlet and bent and wound in the inner wall or outer wall of cover cylinder.

[0007] The output shaft of the motor, the input shaft of the speed reducer, and the coupling have at least one fan blade arranged along the circumference.

[0008] A first half-coupling is arranged on the output shaft of the motor, and a second half-coupling is arranged on the input shaft of the speed reducer; the first half-coupling and the second half-coupling are connected through an elastic disc; the fan blade is arranged on the first half-coupling and the second half-coupling.

[0009] The first heat dissipation pipe and the second heat dissipation pipe are arranged along the inner wall of the cover shell; the cover shell is provided with a first through hole for allowing the first heat dissipation pipe to pass out of the cover shell or for allowing the end of the first heat dissipation pipe to communicate with a first return water pipe of a first cooling circuit; the cover shell is provided with a second through hole for allowing the second heat dissipation pipe to pass out of the cover shell or for allowing the end of the second heat dissipation pipe to communicate with a second return water pipe of a second cooling circuit.

[0010] The left end of the cover cylinder is fixedly connected with the right end surface of the motor, and the right end of the cover cylinder is fixedly connected with the left end surface of the speed reducer; the first water outlet is arranged in the cover shell and located at the right end surface of the motor; the second water outlet is arranged in the cover shell and located at the left end surface of the speed reducer; the first heat dissipation pipe is arranged in a bent manner on the left inner wall of the cover shell, and the second heat dissipation pipe is arranged in a bent manner on the right inner wall of the cover shell.

[0011] The first heat dissipation pipe and the second heat dissipation pipe are respectively arranged in a spiral manner along the inner wall of the cover cylinder.

[0012] The motor is provided with a first cooling structure, and the speed reducer is provided with a second cooling structure; the housing of the motor is further provided with a first water inlet, and the housing of the speed reducer is provided with a second water inlet; the two ends of the first cooling structure are connected with the first water inlet and the first water outlet; the two ends of the second cooling structure are connected with the second water inlet and the second water outlet.

[0013] The first water inlet and the end of the first heat dissipation pipe are connected with a cooling water source through a water pipe and a pump to form a first cooling circuit; the second water inlet and the end of the second heat dissipation pipe are connected with a cooling water source through a water pipe and a pump to form a second cooling circuit.

[0014] Relative to the prior art, in the utility model, the first cooling circuit is provided with the first heat dissipation pipe which is bent, and the second cooling circuit is provided with the second heat dissipation pipe which is bent. The first heat dissipation pipe and the second heat dissipation pipe are bent and wound. The first increases the length of the water pipe returning to the cooling water source, facilitating heat dissipation in the process. Secondly, the first heat dissipation pipe and the second heat dissipation pipe are in contact with the metal-made cover shell, and the metal further accelerates heat dissipation. The water in the first heat dissipation pipe and the second heat dissipation pipe is cooled through heat dissipation, and then enters the cooling water source. The temperature of the cooling water source can be kept low for a long time, meeting the needs of the driving part when working. During the time when the driving part stops working, the cooling water source can continue to dissipate heat, thereby realizing self-circulating cooling. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure principle schematic diagram of the utility model.

[0016] Figure 2 It is the winding schematic diagram of the first heat dissipation pipe and the second heat dissipation pipe in the cover cylinder.

[0017] Figure 3 It is another embodiment of the winding mode of the first heat dissipation pipe and the second heat dissipation pipe.

[0018] Figure 4 It is the fan blade setting diagram of the first half coupling and the second half coupling.

[0019] Figure 5 It is Figure 4 The side view of

[0020] Wherein, 1 is the motor, 11 is the first water inlet, 12 is the first water outlet, 2 is the speed reducer, 21 is the second water inlet, 22 is the second water outlet, 3 is the first half coupling, 4 is the second half coupling, 5 is the fan blade, 6 is the cover cylinder, 61 is the first through hole, 62 is the second through hole, 7 is the water tank, 8 is the first heat dissipation pipe, 9 is the second heat dissipation pipe. DETAILED DESCRIPTION

[0021] In the utility model, unless another definite provision and limitation, the technical terms used in the application should be the general meaning understood by the technical personnel described in the utility model. The terms "connect", "connect", "fix", "set" and the like should be understood broadly, can be fixed connection, also can be detachable connection, or be integrated; can be direct connection, also can be indirect connection through intermediate medium; can be mechanical connection, also can be electrical connection. Unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be the direct contact of the first and second features, or indirect contact through intermediate medium. Moreover, the first feature is "on" or "on" or "on" the second feature can be the first feature is directly above or obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under" or "under" or "under" the second feature can be the first feature is directly below or obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature. The relationship terms such as first, second and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. The orientation or positional relationship indicated by the terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "height", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like used in the description is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation.

[0022] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and specific embodiments. As Figures 1-5As shown, a driving part cooling structure, comprising a motor 1, a reducer 2, a first cooling circuit for cooling the motor 1, a second cooling circuit for cooling the reducer 2; the output shaft of the motor 1 and the input shaft of the reducer 2 are connected through a shaft coupling; a cover cylinder 6 connecting the two is arranged between the shell of the motor 1 and the shell of the reducer 2; a first water outlet 12 is arranged on the shell of the motor 1, and a second water outlet 22 is arranged on the shell of the reducer 2; the first cooling circuit comprises a first heat dissipation pipe 8 connected with the first water outlet 12 and winding on the inner wall or the outer wall of the cover cylinder 6, and the second cooling circuit comprises a second heat dissipation pipe 9 connected with the second water outlet 22 and winding on the inner wall or the outer wall of the cover cylinder 6. Taking the cooling of the motor 1 as an example, the cooling water flows out from the first water outlet 12 after taking away the heat of the motor 1 inside the motor 1 cooling structure, at this time, the water temperature of the water flowing out from the first water outlet 12 is high, if it directly returns to the position where the cooling water source is located, the cooling water temperature will be quickly increased. In the utility model, the first heat dissipation pipe 8 is arranged in the first cooling circuit, and the second heat dissipation pipe 9 is arranged in the second cooling circuit. The first heat dissipation pipe 8 and the second heat dissipation pipe 9 are arranged in a winding manner. The first increases the length of the water pipe returning to the cooling water source, facilitating heat dissipation in the process. Secondly, the first heat dissipation pipe 8 and the second heat dissipation pipe 9 are in contact with the metal-made cover shell, and the metal further accelerates heat dissipation. The water in the first heat dissipation pipe 8 and the second heat dissipation pipe 9 is cooled, the temperature is reduced, and then enters the cooling water source. The temperature of the cooling water source can be kept at a low state for a long time. Because the driving part does not work all the time, but intermittently. During the working time, the temperature of the cooling water source can be kept at a temperature that can cool the driving part. Even if there is a slow increase, during the working stop time, the temperature of the cooling water source will be reduced to the original temperature, waiting for the next work, so as to realize the circulating cooling of the driving part. The other parts of the first cooling circuit and the second cooling circuit, such as the water tank 7 where the cooling water source is located, the pump for providing power, etc. can adopt the prior art, and will not be described in detail. The first heat dissipation pipe 8 and the second heat dissipation pipe 9 can be all arranged on the inner wall of the cover cylinder 6, or all arranged on the outer wall of the cover cylinder 6, or one arranged on the inner wall and the other arranged on the outer wall.

[0023] The output shaft of the motor 1, the output shaft of the reducer 2, and at least one fan blade 5 arranged along the circumference on the shaft coupling. The fan blade 5 rotates with the shaft coupling, the output shaft and the input shaft, thereby cooling and dissipating heat to the air in the cover cylinder 6, thereby reducing the temperature of the cover cylinder 6 and the temperature of the first heat dissipation pipe 8 and the second heat dissipation pipe 9 on the inner wall or the outer wall of the cover cylinder 6, and further improving the heat dissipation effect. The utility model utilizes the components of the driving part itself to increase the air cooling function without additionally increasing a set of cooling fan.

[0024] The output shaft of the motor 1 is provided with a first half-coupling 3, and the output shaft of the speed reducer 2 is provided with a second half-coupling 4; the first half-coupling 3 and the second half-coupling 4 are connected through an elastic disc; the fan blade 5 is arranged on the first half-coupling 3 and the second half-coupling 4. The coupling includes the first half-coupling 3, the second half-coupling 4, and the elastic disc. When the motor 1 rotates, the motor 1 output shaft rotates to transmit torque to the first half-coupling 3 on the motor 1 side, the first half-coupling 3 transmits torque to the second half-coupling 4 on the speed reducer 2 side through the elastic disc, and then transmits torque to the speed reducer 2.

[0025] The first heat dissipation pipe 8 and the second heat dissipation pipe 9 are arranged along the inner wall of the cover shell; the cover shell is provided with a first through hole 61 for allowing the first heat dissipation pipe 8 to pass out of the cover shell or for allowing the end of the first heat dissipation pipe 8 to communicate with a first return water pipe of the first cooling circuit; the cover shell is provided with a second through hole 62 for allowing the second heat dissipation pipe 9 to pass out of the cover shell or for allowing the end of the second heat dissipation pipe 9 to communicate with a second return water pipe of the second cooling circuit. The first heat dissipation pipe 8 and the second heat dissipation pipe 9 can pass through the corresponding first through hole 61 and second through hole 62 to the outside of the cover cylinder 6 to directly serve as return water pipes or to communicate with the corresponding cooling water source through the return water pipes, at which time the first through hole 61 and the second through hole 62 can be the same hole. Alternatively, the following structure can be provided. The end of the first heat dissipation pipe 8 is fixed to the inner side of the first through hole 61, and the end of the second heat dissipation pipe 9 is fixed to the inner side of the second through hole 62. The outer side of the first through hole 61 is detachably connected with the first return water pipe, and the outer side of the second through hole 62 is detachably connected with the second return water pipe. The first return water pipe is part of the first cooling circuit. The second return water pipe is part of the second cooling circuit.

[0026] The left end of the cover cylinder 6 is fixedly connected with the right end surface of the motor 1, and the right end of the cover cylinder 6 is fixedly connected with the left end surface of the speed reducer 2; the first water outlet 12 is arranged in the cover shell and located at the right end surface of the motor 1; the second water outlet 22 is arranged in the cover shell and located at the left end surface of the speed reducer 2; the first heat dissipation pipe 8 is arranged in a bent manner on the left inner wall of the cover shell, and the second heat dissipation pipe 9 is arranged in a bent manner on the right inner wall of the cover shell. The left end and the right end of the cover cylinder 6 are respectively fixedly provided with flanges, and are bolted to the corresponding motor 1 or speed reducer 2 through the flanges.

[0027] The first heat dissipation pipe 8 and the second heat dissipation pipe 9 are respectively arranged in a circumferential spiral manner on the inner wall of the cover cylinder 6. Of course, other winding modes can also be used, such as an S-shaped distribution on the circumferential surface of the cover cylinder 6.

[0028] The motor 1 is provided with a first cooling structure; the reducer 2 is provided with a second cooling structure; the shell of the motor 1 is further provided with a first water inlet 11, and the shell of the reducer 2 is provided with a second water inlet 21; the first cooling structure is communicated with the first water inlet 11 and a first water outlet 12 at both ends; the second cooling structure is communicated with the second water inlet 21 and a second water outlet 22 at both ends. Generally, the motor 1 internally includes an inner shell and an outer shell, and the inner shell is provided with electrical elements such as a stator and a rotor; the first cooling structure is arranged in the cavity between the outer shell and the inner shell; and the first water inlet 11 and the first water outlet 12 are communicated with the cavity. The reducer 2 is internally provided with a cooling water pipe as the second cooling structure. The first cooling structure in the motor 1, the second cooling structure in the reducer 2, and the first water inlet 11, the second water inlet 21, the first water outlet 12, and the second water outlet 22 belong to the prior art and will not be described in detail.

[0029] The first water inlet 11 and the end of the first heat dissipation pipe 8 are communicated with a cooling water source through a water pipe and a pump to form a first cooling circuit; and the second water inlet 21 and the end of the second heat dissipation pipe 9 are communicated with a cooling water source through a water pipe and a pump to form a second cooling circuit. The cooling water sources of the motor 1 and the reducer 2 can be one or two. In the embodiment in the drawing, a water tank 7 is included, and the cooling water in the water tank 7 simultaneously serves as the cooling water source of the motor 1 and the reducer 2. The first water inlet 11 is communicated with the water tank 7 through a first water inlet pipe. The second water inlet 21 is communicated with the water tank 7 through a second water inlet pipe. Water pumps can be arranged at the first water inlet pipe and the second water inlet pipe respectively. Of course, the first water inlet pipe and the second water inlet pipe are communicated with the water tank 7 through a water pump and a three-way pipe at the end of the water pump. In addition, the water pump can also be arranged at other positions, such as the inside of the water tank 7. The water pump and the pipe belong to the prior art and will not be described in detail. The water tank 7 can also be fixed below the driving part through bolts, and a hydraulic driving motor is arranged in the water tank 7 for driving the circulation and flow of the cooling water, which is more compact.

[0030] When working: the cooling water is discharged from the water tank 7, reaches the inside of the motor 1 through the first water inlet pipe and the first water inlet 11, enters the first heat dissipation pipe 8 from the first water outlet 12, is cooled in the cover cylinder 6, and then returns to the water tank 7 through the first through hole 61 and the first water return pipe. The cooling water is discharged from the water tank 7, reaches the inside of the reducer 2 through the second water inlet pipe and the second water inlet 21, enters the second heat dissipation pipe 9 from the second water outlet 22, is cooled in the cover cylinder 6, and then returns to the water tank 7 through the second through hole 62 and the second water return pipe.

[0031] Any combination of the technical features in the above-described embodiments can be made, as long as the combination of the technical features does not contradict, it shall be considered as the scope recorded in the description. Without departing from the overall concept of the present application, according to the technical scheme of the present application and equivalent replacement or change, and several changes and improvements made, should also be considered as the protection scope of the present application.

Claims

1. A driving part cooling structure, comprising a motor, a speed reducer, a first cooling circuit for cooling the motor, and a second cooling circuit for cooling the speed reducer; an output shaft of the motor and an input shaft of the speed reducer are connected through a shaft coupling; a cover cylinder connecting the motor and the speed reducer is arranged between a housing of the motor and a housing of the speed reducer; a first water outlet is arranged on the housing of the motor, and a second water outlet is arranged on the housing of the speed reducer; characterized in that: The first cooling circuit comprises the first radiating pipe connected with the first water outlet and winding on the inner wall or outer wall of the cover cylinder, and the second cooling circuit comprises the second radiating pipe connected with the second water outlet and winding on the inner wall or outer wall of the cover cylinder.

2. The driving portion cooling structure according to claim 1, characterized by: The output shaft of the motor, the input shaft of the speed reducer and the coupling are provided with at least one fan blade along the circumference.

3. The driving portion cooling structure according to claim 2, characterized by: The first half coupling is arranged on the output shaft of the motor, and the second half coupling is arranged on the input shaft of the speed reducer; the first half coupling and the second half coupling are connected through the elastic disc; and the fan blade is arranged on the first half coupling and the second half coupling.

4. The driving portion cooling structure according to claim 1, characterized by: The first radiating pipe and the second radiating pipe are arranged along the inner wall of the cover shell; the cover shell is provided with the first through hole for allowing the first radiating pipe to pass out of the cover shell or for allowing the end of the first radiating pipe to communicate with the first return pipe of the first cooling circuit; and the cover shell is provided with the second through hole for allowing the second radiating pipe to pass out of the cover shell or for allowing the end of the second radiating pipe to communicate with the second return pipe of the second cooling circuit.

5. The driving portion cooling structure according to claim 4, characterized by: The left end of the cover cylinder is fixedly connected with the right end surface of the motor, and the right end of the cover cylinder is fixedly connected with the left end surface of the speed reducer; the first water outlet is arranged in the cover shell and located at the right end surface of the motor; the second water outlet is arranged in the cover shell and located at the left end surface of the speed reducer; the first radiating pipe is arranged in the left inner wall of the cover shell in a bent manner, and the second radiating pipe is arranged in the right inner wall of the cover shell in a bent manner.

6. The driving portion cooling structure according to claim 4, characterized by: The first radiating pipe and the second radiating pipe are respectively arranged in a spiral manner along the circumference of the inner wall of the cover cylinder.

7. The driving part cooling structure according to any one of claims 1 to 4, characterized by: The motor is provided with the first cooling structure, and the speed reducer is provided with the second cooling structure; the housing of the motor is further provided with the first water inlet, and the housing of the speed reducer is provided with the second water inlet; the two ends of the first cooling structure are communicated with the first water inlet and the first water outlet; and the two ends of the second cooling structure are communicated with the second water inlet and the second water outlet.

8. The driving portion cooling structure according to claim 7, characterized by: The first water inlet and the end of the first radiating pipe are communicated with the cooling water source through the water pipe and the pump to form the first cooling circuit; and the second water inlet and the end of the second radiating pipe are communicated with the cooling water source through the water pipe and the pump to form the second cooling circuit.

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