CN114520565A - Mining explosion-proof frequency conversion all-in-one - Google Patents
Mining explosion-proof frequency conversion all-in-one Download PDFInfo
- Publication number
- CN114520565A CN114520565A CN202210369750.0A CN202210369750A CN114520565A CN 114520565 A CN114520565 A CN 114520565A CN 202210369750 A CN202210369750 A CN 202210369750A CN 114520565 A CN114520565 A CN 114520565A
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- heat dissipation
- machine
- motor
- shell
- frequency conversion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/136—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
Abstract
The invention discloses a mining explosion-proof frequency conversion all-in-one machine, which comprises: the water tank is fixedly connected to the motor; the heat dissipation shell is fixedly connected to the tail end of the motor, a transmission shaft is arranged in the heat dissipation shell, and the transmission shaft is fixedly connected with a rotor shaft of the motor; the casing fixed connection is provided with the liquid pump in the casing on the heat dissipation shell. According to the explosion-proof frequency conversion all-in-one machine, the water tank, the water pump and the like are integrated on the all-in-one machine to form a whole, an external water cooling system is not required, the occupation of underground space and additional construction operation are reduced, and the all-in-one machine can operate after being hoisted; according to the invention, the water cooling system is in driving linkage with the integrated machine, and the operation of the liquid pump and the turbofan is synchronously driven by the operation of the motor, so that on one hand, the use of an additional driving system is avoided, the equipment volume and the cost are reduced, on the other hand, the automatic linkage of the water cooling system and the operation state of the integrated machine is realized, and the automatic adjustment can be automatically carried out according to the operation state of the integrated machine.
Description
Technical Field
The invention relates to the technical field of mining electromechanical equipment, in particular to a mining explosion-proof frequency conversion all-in-one machine.
Background
The frequency conversion all-in-one machine is a frequency conversion motor control system integrating a frequency converter and a motor, and a control part integrates the basic functions of a universal frequency converter and is customized for industrial application. And the transmission of the mining large-scale equipment adopts a form of combining a high-voltage frequency converter with a high-power motor, so that the integrated structure can reduce the volume of the equipment and can be more suitable for the underground working environment.
Because the underground environment is severe, the space is small, the ventilation is poor, and more important, the dust content in the underground air is large, and the underground air has the explosive property, the explosion-proof performance of the high-power frequency conversion all-in-one machine is required to be considered compared with the frequency conversion all-in-one machines in other working occasions. In the existing explosion-proof frequency conversion all-in-one machine, in order to avoid direct contact of circuits such as a machine body, an electric reactor in a frequency converter and the like with an underground environment, the motor and the frequency converter are both arranged into a sealed structure, and therefore the heat dissipation problem is brought. Because the sealing structure is difficult to realize by air cooling heat dissipation, the existing underground explosion-proof frequency conversion all-in-one machine is more heat-dissipated by adopting an external water cooling mode, a machine shell water channel is arranged on a motor shell, a heat exchange pipeline and the like are arranged in a frequency converter for water cooling heat transfer, a water cooling heat transfer system needs an external pump, a water tank and the like, the operation and construction are difficult in underground narrow space, and the space is occupied; in addition, the external water cooling system lacks automatic adaptive power control, and cannot perform linkage adjustment with the working power of the integrated machine.
Disclosure of Invention
The invention aims to provide a mining explosion-proof frequency conversion all-in-one machine to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a mining explosion-proof frequency conversion all-in-one, includes: the water tank is arranged on the outer side of the shell, and the shell water channel is arranged on the outer side of the motor; the water tank is fixedly connected to the motor, and cooling liquid is arranged in the water tank;
the heat dissipation shell is fixedly connected to the tail end of the motor, an air inlet is formed in the bottom of the heat dissipation shell, a transmission shaft is arranged in the heat dissipation shell, and the transmission shaft is fixedly connected with a motor rotor shaft; the shell is fixedly connected to the heat dissipation shell, a liquid pump is arranged in the shell, a water inlet of the liquid pump is connected with a spiral pipe through a first pipeline, a heat dissipation pipeline in the frequency converter is connected with a water tank through a third pipeline, a water outlet of the liquid pump is connected to the water tank, the spiral pipe is spirally arranged on the inner wall of the heat dissipation shell, the other end of the spiral pipe is connected with a second pipeline, the second pipeline is connected with a shell water channel on the motor, and the other end of the shell water channel is connected to the heat dissipation pipeline in the frequency converter; the transmission shaft is also provided with a reversing gear set, the reversing gear set comprises at least one pair of meshed bevel gears, one group of bevel gears are arranged on the transmission shaft, and the other group of bevel gears are connected with the liquid pump.
As a further scheme of the invention: and heat dissipation fins are arranged outside the heat dissipation shell and the water tank.
As a further scheme of the invention: the end part of the heat dissipation shell is provided with a heat dissipation window.
As a further scheme of the invention: and a sealing bearing is arranged between the transmission shaft and the motor.
As a further scheme of the invention: the other end of the relative turbofan of transmission shaft is provided with the valve disc, be provided with the switching subassembly that a plurality of arrays were arranged on the valve disc, the switching subassembly includes gleitbretter, spout, gleitbretter sliding connection is in the spout, and the position that corresponds the switching subassembly on the valve disc is provided with the vent.
As a further scheme of the invention: and a tension spring is connected between the centers of the sliding sheet and the valve disc.
As a further scheme of the invention: still include the dust fall ware, the dust fall ware includes the cylinder of vertebra form, the cylinder top is connected with along its tangential air-supply line and along its axial air-out pipe, air-out pipe and the air intake connection on the heat dissipation shell.
As a further scheme of the invention: the bottom end of the separating cylinder is connected with a dust collecting hopper.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the explosion-proof frequency conversion all-in-one machine, the water tank, the water pump and the like are integrated on the all-in-one machine to form a whole, an external water cooling system is not required, the occupation of underground space and additional construction operation are reduced, and the all-in-one machine can operate after being hoisted;
2. according to the invention, the water cooling system is in driving linkage with the integrated machine, and the operation of the liquid pump and the turbofan is synchronously driven by the operation of the motor, so that on one hand, the use of an additional driving system is avoided, the equipment volume and the cost are reduced, on the other hand, the automatic linkage of the water cooling system and the operation state of the integrated machine is realized, and the automatic adjustment can be automatically carried out according to the operation state of the integrated machine.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an inner side of a heat dissipation housing according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 4 is a schematic structural view of the inner side of the heat dissipation housing in the second embodiment of the present invention.
FIG. 5 is a schematic diagram of an end face structure of a valve disc according to a second embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a dust precipitator according to a second embodiment of the present invention.
In the figure, 1, a motor; 11. a housing water channel; 2. a frequency converter; 3. a water tank; 31. heat dissipation fins; 4. a housing; 41. a first conduit; 42. a second conduit; 43. a third pipeline; 44. a liquid pump; 5. a heat dissipation housing; 51. a heat dissipation window; 52. a spiral tube; 53. a reversing gear set; 54. a turbofan; 55. a drive shaft; 56. a valve disc; 561. a vent; 562. sliding blades; 563. a chute; 564. a tension spring; 6. a dust fall device; 61. an air inlet pipe; 62. a separation cylinder; 63. an air outlet pipe; 64. a dust collecting hopper.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In a first embodiment, referring to fig. 1 and 2, in an embodiment of the present invention, an explosion-proof frequency conversion all-in-one machine for mining includes: the water cooling type water-cooled generator comprises a motor 1, a frequency converter 2, a water tank 3, a shell 4 and a heat dissipation shell 5, wherein the frequency converter 2 is fixedly connected to the motor 1, the frequency converter 2 and the motor 1 both adopt sealed explosion-proof shells, and a shell water channel 11 for water cooling heat dissipation is further arranged on the outer side of the motor 1; the water tank 3 is fixedly connected to the motor 1, and cooling liquid is arranged in the water tank 3;
the heat dissipation shell 5 is fixedly connected to the tail end of the motor 1, a heat dissipation window 51 is arranged at the end part of the heat dissipation shell 5, an air inlet is formed in the bottom of the heat dissipation shell 5, a transmission shaft 55 is arranged in the heat dissipation shell 5, the transmission shaft 55 is fixedly connected with a rotor shaft of the motor 1, a sealing bearing is arranged between the transmission shaft 55 and the motor 1, the heat dissipation shell 5 is kept isolated from the inside of the motor 1, a turbofan 54 is arranged on one end, close to the motor 1, of the transmission shaft 55, and the turbofan 54 is synchronously driven to rotate by the transmission shaft 55 when the motor 1 works; the machine shell 4 is fixedly connected to the heat dissipation shell 5, a liquid pump 44 is arranged in the machine shell 4, a water inlet of the liquid pump 44 is connected with a spiral pipe 52 through a first pipeline 41, a heat dissipation pipeline in the frequency converter 2 is connected with the water tank 3 through a third pipeline 43, a water outlet of the liquid pump 44 is connected to the water tank 3, the spiral pipe 52 is spirally arranged on the inner wall of the heat dissipation shell 5, the other end of the spiral pipe 52 is connected with a second pipeline 42, the second pipeline 42 is connected with the machine shell water channel 11 on the motor 1, and the other end of the machine shell water channel 11 is connected to the heat dissipation pipeline in the frequency converter 2;
the transmission shaft 55 is further provided with a reversing gear set 53, the reversing gear set 53 comprises at least one pair of meshed bevel gears, one bevel gear is arranged on the transmission shaft 55, the other bevel gear is connected with the liquid pump 44, and the transmission shaft 55 can synchronously drive the liquid pump 44 to operate through the reversing gear set 53.
When the motor 1 works, the liquid pump 44 operates synchronously, the liquid pump 44 pumps out the cooling liquid in the water tank 3, the cooling liquid firstly enters the frequency converter 2 through the third pipeline 43 to carry out heat exchange and cooling on the interior of the frequency converter 2, because the heat productivity of the frequency converter 2 is much larger than that of the motor 1, the temperature of the cooling liquid is firstly reduced, the cooling liquid cannot be obviously heated, then the cooling liquid enters the shell water channel 11 to carry out heat exchange with the motor 1, the shell of the motor 1 is cooled, and then enters the spiral pipe 52 through the second pipeline 42 to flow, the scroll fan 54 rotates when the motor operates, the spiral pipe 52 is cooled by air through the scroll fan 54 to reduce the temperature of the cooling liquid, then the cooling liquid enters the liquid pump 44 through the first pipeline 41 and is pumped into the water tank 3 by the liquid pump 44 to realize circulation, in the process, the liquid pump 44 and the scroll fan 54 are synchronous with the motor 1, under different rotating speeds and powers of the motor 1, the operating states of the liquid pump 44 are also different, thus, the effect of linkage control of heat dissipation and heating is achieved, and the turbofan 54 synchronously achieves the purpose of heat dissipation of water cooling; the water tank 3, the casing 4 and the heat dissipation casing 5 are integrated with the integrated machine, so that an external water cooling system is not needed, and the underground space and the additional construction operation are not needed to be occupied;
the heat dissipation shell 5 and the water tank 3 are both provided with heat dissipation fins 31 to improve the heat dissipation performance of the water tank 3 and the heat dissipation shell 5, and further improve the cooling effect.
Second embodiment, as shown in fig. 3-5, in this embodiment, the other end of the transmission shaft 55 opposite to the turbofan 54 is provided with a valve disc 56, the valve disc 56 is close to the heat dissipating window 51, the valve disc 56 is provided with a plurality of opening and closing assemblies arranged in an array, the opening and closing assemblies comprise sliding sheets 562 and sliding grooves 563, the sliding sheet 562 is connected in the sliding chute 563 in a sliding way, a vent 561 is arranged on the valve disc 56 corresponding to the opening and closing component, the size of the sliding sheet 562 is not smaller than that of the vent 561, a tension spring 564 is connected between the sliding sheet 562 and the center of the valve disc 56, the valve disc 56 rotates synchronously with the transmission shaft 55, the upper slide plate 562 moves centrifugally under the action of centrifugal force to open the vent 561, so that the air flow in the heat dissipation case 55 can be discharged from the heat dissipation window 51, while the slide 562 is reset by the tension spring 564 to close the vent 561 when the motor 1 stops, thereby separating the interior of the heat dissipation housing 5 from the downhole environment and reducing downhole gas from entering the heat dissipation housing 5.
As shown in fig. 6, the dust remover 6 further includes a cone-shaped separation barrel 62, the top end of the separation barrel 62 is connected with an air inlet pipe 61 along the tangential direction of the separation barrel 62 and an air outlet pipe 63 along the axial direction of the separation barrel, the air outlet pipe 63 is connected with an air inlet on the heat dissipation shell 5, the bottom end of the separation barrel 62 is connected with a dust hopper 64, air entering into the heat dissipation shell 5 firstly enters the separation barrel 62 through the air inlet pipe 61, cyclone is formed in the separation barrel, particulate matters such as dust and the like contact with the barrel wall under the centrifugal action and then naturally settle in the dust hopper 64, and air flow after dust removal enters into the heat dissipation shell 5 through the air outlet pipe 63, so that the dust content of the air entering into the heat dissipation shell 5 can be greatly reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a mining explosion-proof frequency conversion all-in-one, includes: the water-cooled generator comprises a motor (1), a frequency converter (2), a water tank (3), a shell (4) and a heat dissipation shell (5), wherein the frequency converter (2) is fixedly connected to the motor (1), and a shell water channel (11) is further arranged on the outer side of the motor (1); the method is characterized in that: the water tank (3) is fixedly connected to the motor (1), and cooling liquid is arranged in the water tank (3);
the heat dissipation shell (5) is fixedly connected to the tail end of the motor (1), an air inlet is formed in the bottom of the heat dissipation shell (5), a transmission shaft (55) is arranged in the heat dissipation shell (5), and the transmission shaft (55) is fixedly connected with a rotor shaft of the motor (1); the heat dissipation device is characterized in that the machine shell (4) is fixedly connected to the heat dissipation shell (5), a liquid pump (44) is arranged in the machine shell (4), a water inlet of the liquid pump (44) is connected with the spiral pipe (52) through a first pipeline (41), a heat dissipation pipeline in the frequency converter (2) is connected with the water tank (3) through a third pipeline (43), a water outlet of the liquid pump (44) is connected to the water tank (3), the spiral pipe (52) is spirally arranged on the inner wall of the heat dissipation shell (5), the other end of the spiral pipe (52) is connected with a second pipeline (42), the second pipeline (42) is connected with a machine shell water channel (11) on the motor (1), and the other end of the machine shell water channel (11) is connected to a heat dissipation pipeline in the frequency converter (2); the transmission shaft (55) is also provided with a reversing gear set (53), the reversing gear set (53) comprises at least one pair of meshed bevel gears, one group of bevel gears are arranged on the transmission shaft (55), and the other group of bevel gears are connected with the liquid pump (44).
2. The mining explosion-proof frequency conversion all-in-one machine of claim 1, characterized in that: and heat dissipation fins (31) are arranged outside the heat dissipation shell (5) and the water tank (3).
3. The mining explosion-proof frequency conversion all-in-one machine of claim 1, characterized in that: the end part of the heat dissipation shell (5) is provided with a heat dissipation window (51).
4. The mining explosion-proof frequency conversion all-in-one machine of claim 1, characterized in that: and a sealing bearing is arranged between the transmission shaft (55) and the motor (1).
5. The mining explosion-proof frequency conversion all-in-one machine of claim 1, characterized in that: the other end of transmission shaft (55) relative turbofan (54) is provided with valve disc (56), be provided with the switching subassembly that a plurality of arrays were arranged on valve disc (56), the switching subassembly includes gleitbretter (562), spout (563), gleitbretter (562) sliding connection is in spout (563), and the position that corresponds the switching subassembly on valve disc (56) is provided with vent (561).
6. The mining explosion-proof frequency conversion all-in-one machine of claim 5, characterized in that: and a tension spring (564) is connected between the centers of the sliding sheet (562) and the valve disc (56).
7. The mining explosion-proof frequency conversion all-in-one machine of claim 6, characterized in that: still include dust fall ware (6), dust fall ware (6) are including cylinder (62) of cone form, cylinder (62) top is connected with along its tangential air-supply line (61) and along its axial air-out pipe (63), air-out pipe (63) and the air intake connection on heat dissipation shell (5).
8. The mining explosion-proof frequency conversion all-in-one machine of claim 7, characterized in that: the bottom end of the separating cylinder (62) is connected with a dust collecting hopper (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369750.0A CN114520565A (en) | 2022-04-08 | 2022-04-08 | Mining explosion-proof frequency conversion all-in-one |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210369750.0A CN114520565A (en) | 2022-04-08 | 2022-04-08 | Mining explosion-proof frequency conversion all-in-one |
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| CN114520565A true CN114520565A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210369750.0A Pending CN114520565A (en) | 2022-04-08 | 2022-04-08 | Mining explosion-proof frequency conversion all-in-one |
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| CN (1) | CN114520565A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947469A (en) * | 2017-12-21 | 2018-04-20 | 盐城中德劲博机电有限责任公司 | Screw air compressor cooling structure |
| CN115518441A (en) * | 2022-11-03 | 2022-12-27 | 安徽睿弘环保科技有限公司 | Desulfurization waste liquid acidification pretreatment filtration equipment |
| CN116566110A (en) * | 2023-07-04 | 2023-08-08 | 中铁九局集团有限公司 | New energy mining truck driving motor with efficient heat dissipation structure |
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| CN215412332U (en) * | 2021-07-15 | 2022-01-04 | 上海吉昱通风管道有限公司 | Building is warm to lead to and is used high-efficient ventilation unit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947469A (en) * | 2017-12-21 | 2018-04-20 | 盐城中德劲博机电有限责任公司 | Screw air compressor cooling structure |
| CN115518441A (en) * | 2022-11-03 | 2022-12-27 | 安徽睿弘环保科技有限公司 | Desulfurization waste liquid acidification pretreatment filtration equipment |
| CN116566110A (en) * | 2023-07-04 | 2023-08-08 | 中铁九局集团有限公司 | New energy mining truck driving motor with efficient heat dissipation structure |
| CN116566110B (en) * | 2023-07-04 | 2023-09-08 | 中铁九局集团有限公司 | New energy mining truck driving motor with efficient heat dissipation structure |
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