A switched reluctance motor with explosion-proof function

Abstract

The present application relates to the technical field of switched reluctance motors, and provides a switched reluctance motor with an explosion-proof function, including a shelf assembly, a material storage assembly and a handling assembly, a plurality of material receiving assemblies are slidably mounted on the bottom frame, a plurality of linearly evenly distributed first positioning assemblies are arranged on the first support frame, a second positioning assembly corresponding to the first positioning assembly is detachably provided on the material receiving plate, a connecting assembly is slidably mounted on the material receiving plate, and the beneficial effects of the present invention are: preventing impurities in the air from entering the switched reluctance motor, having an explosion-proof function, and driving the circulation start of the fans on both sides by operating the adjustment assembly to realize the switching of the forward and reverse directions of the airflow, filtering the impurities in the airflow through the filter box at the air inlet end, and recoil-blowing away the impurities in the filter box at the exhaust end, realizing the function of self-cleaning of the impurities in the filter box, and further improving the explosion-proof function.

Description

Technical Field

[0001] The invention belongs to the technical field of switched reluctance motors, and in particular relates to a switched reluctance motor with an explosion-proof function. Background Art

[0002] The switched reluctance motor is a new type of speed regulation motor. It is the latest generation of speed regulation system following the variable frequency speed regulation system and the brushless DC motor speed regulation system. It has a simple and sturdy structure, a wide speed regulation range and high system reliability. The complete system mainly consists of a motor entity, a power converter, a controller and a position detector. The controller contains a power converter and a control circuit, while the rotor position detector is installed at one end of the motor. The application and development of the switched reluctance motor has made significant progress and has been successfully used in various fields such as electric vehicle drives, general industry, household appliances and textile machinery.

[0003] Patent document with application number 202322747226.5 discloses a switched reluctance speed control motor with an explosion-proof casing, which relates to the field of motor technology, including a casing and a bracket, combining a heat dissipation structure and an explosion-proof structure, and installing a clamping hoop on the outside of the casing by fixing it with the bracket. The clamping hoop is clamped on the outside of the casing, and the reinforcement performance of the casing is improved through the action of the reinforcing ribs inside the clamping hoop, thereby avoiding the casing from cracking, having good explosion-proof performance, and the liquid cavity inside the clamping hoop can be filled with coolant, which is beneficial to cooling the motor and has comprehensive functions.

[0004] However, the existing switched reluctance motor generates a lot of heat when the rotor rotates during use. The heat is only dissipated by the motor's own cooling fan, which is slow. The heat accumulates in the closed motor housing for a long time and is prone to explosion, causing damage to personnel and equipment. At the same time, the switched reluctance motor is used in high-dust environments such as textiles, chemicals, and coal mines, which can easily cause dust to accumulate in the switched reluctance motor, resulting in dust explosions under high temperature conditions, causing damage to personnel and equipment. A protection box is added to the outside of the switched reluctance motor to protect the switched reluctance motor. The heat generated by the motor cannot be dissipated, and impurities in the airflow are adsorbed by the filter box. The filter box needs to be cleaned regularly, and the filter box is prone to clogging, which reduces the heat dissipation effect.

[0005] Moreover, the switched reluctance motor is used in an environment containing flammable and explosive gases, such as the chemical industry. It is unable to effectively adsorb the flammable and explosive gases that enter the switched reluctance motor, thereby causing a large accumulation of flammable and explosive gases, thus causing an explosion. Summary of the invention

[0006] In view of this, the present invention provides a switched reluctance motor with an explosion-proof function, which prevents impurities in the air from entering the switched reluctance motor and has an explosion-proof function. By operating the adjustment component, the fan on the other side is driven to rotate, thereby realizing reverse flow of the airflow. Impurities in the airflow are filtered through the filter box at the air inlet end, and impurities in the filter box at the exhaust end are recoiled and blown away, thereby realizing the self-cleaning function of impurities in the filter box, and further improving the explosion-proof function.

[0007] The technical solution is as follows: a switched reluctance motor with explosion-proof function, comprising an explosion-proof box and a switched reluctance motor, wherein the switched reluctance motor can be detachably installed in the explosion-proof box, the switched reluctance motor comprises a rotating shaft, one end of the rotating shaft passes through the explosion-proof box, and is characterized in that: a fourth transmission gear is fixedly arranged on the portion of the rotating shaft between the explosion-proof box and the switched reluctance motor, two mutually symmetrical first partitions are fixedly arranged on both sides of the switched reluctance motor in the explosion-proof box, a second partition is fixedly arranged between the switched reluctance motor and the first partition in the explosion-proof box, a first air transmission cavity is reserved between the first partition and the second partition, a first ventilation hole is opened on the second partition, a first sealing plate is fixedly arranged on the ends of the first partition and the second partition, and a first sealing plate is fixed on the first sealing plate An annular cover body is provided, the annular cover body passes through the first sealing plate and is sealed and connected with the first gas delivery cavity, a fan is rotatably installed in the annular cover body, an L-shaped partition is fixedly installed on one end of the first sealing plate, and a third partition is fixedly provided on the other end for sealing the part of the annular cover body extending out of the first partition, a second gas delivery cavity is formed between the first partition and the explosion-proof box, and is sealed and connected with the first gas delivery cavity through the annular cover body, a third gas delivery cavity is formed between the L-shaped partition, the first sealing plate, the third partition and the explosion-proof box, filter boxes are detachably installed on both sides of the explosion-proof box, the filter box is connected with the second gas delivery cavity through the third gas delivery cavity, and the fan on one side is started to allow the gas outside the filter box to enter the explosion-proof box through the filter box on that side, and be discharged through the filter box on the other side; A first transmission shaft is fixedly arranged on the fan, the first transmission shaft passes through the L-shaped partition, and is fixedly arranged with a first transmission gear. A first support frame is fixedly arranged in the explosion-proof box, and two second shaft sleeves and two third shaft sleeves are fixedly arranged on the first support frame, which are symmetrical to each other. The second transmission shafts are rotatably mounted on the two second shaft sleeves, and the second transmission gears meshing with the fourth transmission gears are fixedly arranged on the two second transmission shafts. The third transmission shafts are rotatably mounted on the two third shaft sleeves, and the third transmission gears meshing with the first transmission gears are fixedly arranged on one end of the two third transmission shafts. A second U-shaped bracket is slidably mounted on the explosion-proof box, and the fourth shaft sleeves are rotatably mounted on both ends of the second U-shaped bracket. One end of the two fourth shaft sleeves is respectively slidably mounted on the two third transmission shafts, and a connector is fixedly arranged on the other end of the two fourth shaft sleeves. A connecting groove corresponding to the connecting groove is fixedly opened on one end of the two second transmission shafts away from the second transmission gear. The second U-shaped bracket is operated to drive the connecting head on one side to be inserted into the corresponding connecting groove, so that the third transmission shaft is driven to rotate through the second transmission shaft on this side, and the connecting head on the other side is away from the connecting groove; A support plate slidably mounted on the explosion-proof box is fixedly provided on the second U-shaped bracket, and an adjustment component is provided between the support plate and the explosion-proof box. The adjustment component is operated to drive the support plate to move along the explosion-proof box, which will drive the connecting head on one side to be inserted into the corresponding connecting groove, and the connecting head on the other side is away from the corresponding connecting groove.

[0008] By adopting the above technical solution, the operating adjustment component drives the connecting head on one side to be inserted into the corresponding connecting groove, and the third transmission shaft is driven to rotate through the second transmission shaft on this side, and the connecting head on the other side is away from the connecting groove. The rotating third transmission shaft drives the fan to rotate through the first transmission shaft. The gas outside the explosion-proof box on this side is filtered through the filter box, enters the first air transmission cavity through the fan, and is then discharged through the first ventilation hole. The airflow takes away the heat of the switched reluctance motor and is discharged through the filter box on the other side to prevent impurities in the air from entering the switched reluctance motor. It has an explosion-proof function. By operating the adjusting component, the fan on the other side is driven to rotate to realize reverse flow of the airflow, filter impurities in the airflow through the filter box at the air inlet end, and recoil and blow away impurities in the filter box at the exhaust end, thereby realizing the self-cleaning function of impurities in the filter box, further enhancing the explosion-proof function.

[0009] Preferably, a first sleeve is arranged between the L-shaped partition and the annular cover body, the outer wall of the first sleeve is connected and fixed to the annular cover body by a first support rod, a first mounting hole connected to the first sleeve is opened on the L-shaped partition, and the first transmission shaft is rotatably installed in the first sleeve and the first mounting hole.

[0010] Preferably, a through hole is formed on the first sealing plate, the annular cover is sealed in the through hole and communicated with the first gas delivery cavity, and a gap communicating with the second gas delivery cavity is reserved between the first sealing plate and the inner wall of the explosion-proof box.

[0011] Preferably, there are multiple first ventilation holes, and the multiple first ventilation holes are distributed in a matrix on the second partition.

[0012] By adopting the above technical solution, gas is circulated through the first ventilation holes distributed in a matrix shape, so that the airflow evenly cools the switched reluctance motor, improves the cooling effect and uniform heat dissipation of the switched reluctance motor, and further improves the explosion-proof function.

[0013] Preferably, a pressure-limiting valve assembly is provided in each of the first ventilation holes. The pressure-limiting valve assembly is divided into two groups, and the two groups of pressure-limiting valve assemblies have opposite directions of limiting airflow pressure. The two groups of pressure-limiting valve assemblies are staggeredly distributed in the first ventilation holes of the second partitions, and the installation directions of the pressure-limiting valve assemblies on the two second partitions correspond to each other.

[0014] Preferably, the pressure limiting valve assembly includes an annular sealing plate and a second support rod which are parallel to each other and fixedly installed in the first ventilation hole, a frustum is fixedly provided in the middle position of the second support rod, a sealing head is slidably installed at the center hole of the annular sealing plate, an elastic component is provided between the sealing head and the frustum, the sealing head is pushed by the elastic component to seal the center hole of the annular sealing plate, and the elastic force of the elastic component is less than the pressure of the airflow generated by the fan.

[0015] By adopting the above technical solution, the gas is evenly discharged through the first ventilation hole on the second partition on one side through the pressure limiting valve assembly, so that the gas in the two second partitions is pressure-limited and discharged through the first ventilation hole on the second partition on the other side. The airflow evenly cools the switched reluctance motor, thereby improving the cooling effect and uniform heat dissipation of the switched reluctance motor, and further improving the explosion-proof function.

[0016] Preferably, a plurality of key slots evenly distributed axially are provided on one end of the third transmission shaft close to the fourth sleeve, a key body corresponding to the plurality of key slots is fixedly provided inside the fourth sleeve, the key body is slidably installed in the key slot, the connecting groove is a conical groove, the connecting head is a conical body, and the connecting head is inserted into the connecting groove by interference fit.

[0017] By adopting the above technical solution, the third transmission shaft is prevented from idling in the fourth sleeve through the cooperation of the key body and the keyway. The connecting head is inserted into the connecting groove to improve the stability of the connection between the third transmission shaft and the fourth sleeve, and the fourth sleeve is prevented from rotating in the second transmission shaft, thereby affecting the transmission of the second transmission shaft and the third transmission shaft, thereby improving the overall stability and the convenience of switching the rotation of the fans on both sides.

[0018] Preferably, a first opening is provided on both sides of the explosion-proof box, a mounting frame is fixedly provided on the outer wall of the filter box, the mounting frame is detachably mounted on the explosion-proof box, the filter box seal passes through the first opening, and the end is sealed and connected to the first partition, the filter box is located in the explosion-proof box, and an exhaust port is provided on the side close to the L-shaped partition, the filter box is located outside the explosion-proof box, and an air inlet is provided at the front end away from the side of the L-shaped partition, and a filter assembly is provided in the filter box between the air inlet and the exhaust port.

[0019] Preferably, the filter assembly includes a first filter cabinet sealedly installed in the filter box, the first filter cabinet is provided with an air guide frame, the air guide frame seals and passes through the air inlet, the filter assembly also includes multiple second filter cabinets sealedly installed in the filter box, the side of the first filter cabinet close to the second filter cabinet and the two sides of the second filter cabinet are filter nets, and are interconnected, the filter box drives the first filter cabinet and multiple second filter cabinets to be sealed and connected with the first partition, a third U-shaped bracket is slidably installed in the filter box, a fixing assembly is provided between the third U-shaped bracket and the inner wall of the filter box, and the fixing assembly is operated to push the third U-shaped bracket to seal the multiple second filter cabinets and the first filter cabinet in the filter box.

[0020] By adopting the above technical solution, dust impurities are filtered through the first filter cabinet, and by adding different adsorption filter materials in multiple second filter cabinets, gases in different scenarios can be filtered, thereby further improving the explosion-proof function. It is suitable for use in different scenarios, has good marketability, and improves economic benefits.

[0021] Preferably, the switched reluctance motor comprises an explosion-proof housing, a rear end cover and a front end cover are provided on the explosion-proof housing, a rear heat sink fin is fixedly provided on the rear end cover, a front heat sink fin is provided on the front end cover, and heat sinks uniformly distributed axially are provided on the explosion-proof housing, a stator core is fixedly provided in the explosion-proof housing, heat-conducting teeth connected to the heat sink fins are provided on the stator core, a plurality of heat-conducting rods extending to the rear heat sink fins and the front heat sink fins are fixedly provided on the stator core, a rotor is rotatably installed in the stator core, and a rotating shaft penetrating the front end cover is provided on the rotor.

[0022] By adopting the above technical solution, the heat generated in the stator core is transferred to the front heat sink fins, rear heat sink fins and heat sinks through the heat-conducting teeth and heat-conducting rods, thereby improving the heat conduction inside the switched reluctance motor, thereby improving the heat dissipation effect and further improving the explosion-proof function.

[0023] After adopting the above technical solution, the beneficial effects of the present invention are: 1. Operate the adjustment component to drive the connector on one side to be inserted into the corresponding connection groove, and drive the third transmission shaft to rotate through the second transmission shaft on this side, and the connector on the other side is away from the connection groove. The rotating third transmission shaft drives the fan to rotate through the first transmission shaft. The gas outside the explosion-proof box on this side is filtered through the filter box, enters the first gas transmission cavity through the fan, and is discharged through the first ventilation hole. The airflow takes away the heat of the switched reluctance motor and is discharged through the filter box on the other side to prevent impurities in the air from entering the switched reluctance motor. It has an explosion-proof function. By operating the adjustment component, the circulation of the fans on both sides is driven to start, and the forward and reverse switching of the airflow is realized. The impurities in the airflow are filtered through the filter box at the air inlet end, and the impurities in the filter box at the exhaust end are recoiled and blown away, so as to realize the self-cleaning function of the impurities in the filter box, further improve the explosion-proof function, and drive the fan to rotate through the switched reluctance motor to reduce energy consumption; 2. The gas is evenly discharged through the first ventilation hole on the second partition on one side, so that the gas in the two second partitions is pressure-limited and discharged through the first ventilation hole on the second partition on the other side. The airflow evenly cools the switched reluctance motor, improves the cooling effect and uniform heat dissipation of the switched reluctance motor, and further improves the explosion-proof function; 3. The key body and the key slot are used to prevent the third transmission shaft from idling in the fourth sleeve. The connector is inserted into the connecting slot to improve the stability of the connection between the third transmission shaft and the fourth sleeve, and prevent the fourth sleeve from rotating in the second transmission shaft, thereby affecting the transmission of the second and third transmission shafts. This improves the overall stability and the convenience of switching the rotation of the fans on both sides. 4. Filter dust impurities through the first filter cabinet, and add different adsorption filter materials in multiple second filter cabinets to filter gases in different scenarios, further improve the explosion-proof function, and be suitable for use in different scenarios, with good market promotion and improved economic benefits; 5. The heat generated in the stator core is transferred to the front heat dissipation gear plate, the rear heat dissipation gear plate and the heat sink through the heat conduction teeth and the heat conduction rod, so as to improve the heat conduction inside the switched reluctance motor, thereby improving the heat dissipation effect and further improving the explosion-proof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a cross-sectional structural schematic diagram of the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of a partial three-dimensional structure of the present invention; Figure 5 It is a partial top view structural schematic diagram of the present invention; Figure 6 It is a partial side view structural schematic diagram of the present invention; Figure 7 It is a schematic diagram of the partial explosion structure of the present invention; Figure 8 It is a partial side view structural schematic diagram of the present invention; Fig. 9 It is a schematic diagram of the partial explosion structure of the present invention; Fig.10 For the present invention Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle; Fig.11 For the present invention Fig. 9 A partial enlarged schematic diagram of point C in the middle; Fig.12 It is a partial cross-sectional three-dimensional structural schematic diagram of the explosion-proof box of the present invention; Fig.13 It is a schematic diagram of the three-dimensional structure between the first partition, the second partition and the L-shaped partition of the present invention; Fig.14 For the present invention Figure 2 A schematic diagram of the local enlarged structure at B in the middle; Fig.15 It is a schematic diagram of the explosion structure of the filter box of the present invention; Fig.16 It is a three-dimensional structural schematic diagram of the switched reluctance motor of the present invention; Fig.17 It is a schematic diagram of the installation structure of the stator core and the rotor of the present invention; Fig.18 It is a schematic diagram of the main structure of the second partition of the present invention; Fig.19 It is a schematic diagram of the three-dimensional structure of the pressure-limiting valve assembly of the present invention; In the figure, 1, explosion-proof box; 2, sealing cover; 3, sealing bearing; 4, first sliding port; 5, first opening; 6, first mounting seat; 7, piston cavity; 8, switched reluctance motor; 9, first partition; 10, second partition; 11, first ventilation hole; 12, first gas delivery cavity; 13, L-shaped partition; 14, first sealing plate; 15, third partition; 16, annular cover; 17, first support rod; 18, first mounting hole; 19, second gas delivery cavity; 20, pressure limiting valve assembly; 21, third gas delivery cavity; 22, first sleeve; 23, first transmission shaft; 24, fan; 25, first support frame; 26, first U-shaped bracket; 27, second sleeve; 28, L-shaped bracket; 29, third sleeve; 30, second transmission shaft; 31, second transmission gear; 32, connecting groove; 33, fourth transmission gear; 34, third transmission shaft; 35, third transmission gear; 36. keyway; 37. first transmission gear; 38. second U-shaped bracket; 39. fourth shaft sleeve; 40. key body; 41. connector; 42. support plate; 43. adjusting bolt; 44. piston plate; 45. filter box; 46. mounting frame; 47. air inlet; 48. air outlet; 49. third U-shaped bracket; 50. fixing assembly; 51. first filter cabinet; 52. filter screen; 53. air guide frame; 54. second filter cabinet; 55, fourth partition; 2001, annular sealing plate; 2002, truncated cone; 2003, second support rod; 2004, plugging head; 2005, elastic component; 81, explosion-proof housing; 82, rear end cover; 83, front end cover; 84, second mounting seat; 85, rear heat dissipation fin; 86, front heat dissipation fin; 87, heat sink; 88, stator core; 89, heat conduction teeth; 810, heat conduction rod; 811, rotor; 812, rotating shaft; DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0027] like Figures 1 to 19As shown, a switched reluctance motor with explosion-proof function comprises an explosion-proof box 1 and a switched reluctance motor 8, wherein the switched reluctance motor 8 can be detachably installed in the explosion-proof box 1, the switched reluctance motor 8 comprises a rotating shaft 812, one end of the rotating shaft 812 passes through the explosion-proof box 1, a fourth transmission gear 33 is fixedly arranged on the portion of the rotating shaft 812 between the explosion-proof box 1 and the switched reluctance motor 8, two mutually symmetrical first partitions 9 are fixedly arranged on both sides of the switched reluctance motor 8 in the explosion-proof box 1, a second partition 10 is fixedly arranged between the switched reluctance motor 8 and the first partition 9 in the explosion-proof box 1, a first air transmission cavity 12 is reserved between the first partition 9 and the second partition 10, a first ventilation hole 11 is opened on the second partition 10, a first sealing plate 14 is fixedly arranged at the ends of the first partition 9 and the second partition 10, an annular cover body 16 is fixedly arranged on the first sealing plate 14, and the annular cover The body 16 penetrates the first sealing plate 14 and is sealed and connected with the first gas delivery cavity 12. A fan is rotatably installed in the annular cover body 16. An L-shaped partition 13 is fixedly installed at one end of the first sealing plate 14, and a third partition 15 is fixedly provided at the other end for sealing the portion of the annular cover body 16 extending out of the first partition 9. A second gas delivery cavity 19 is formed between the first partition 9 and the explosion-proof box 1, and is sealed and connected with the first gas delivery cavity 12 through the annular cover body 16. A third gas delivery cavity 21 is formed between the L-shaped partition 13, the first sealing plate 14, the third partition 15 and the explosion-proof box 1. Filter boxes 45 are detachably installed on both sides of the explosion-proof box 1. The filter box 45 is connected with the second gas delivery cavity 19 through the third gas delivery cavity 21. The fan on one side is started to allow the gas outside the filter box 45 to enter the explosion-proof box 1 through the filter box 45 on that side, and be discharged through the filter box 45 on the other side.

[0028] Specifically: a sealing cover 2 is installed on the explosion-proof box 1 through bolts and nuts. A mounting hole is opened on the sealing cover 2. A sealing bearing 3 is installed at the mounting hole of the sealing cover 2. The rotating shaft 812 is rotatably installed in the sealing bearing 3 and extends out of the sealing cover 2.

[0029] A first transmission shaft 23 is fixedly arranged on the fan 24, the first transmission shaft 23 passes through the L-shaped partition 13, and is fixedly arranged with a first transmission gear 37. A first support frame 25 is fixedly arranged in the explosion-proof box 1, and two second shaft sleeves 27 and two third shaft sleeves 29 are fixedly arranged on the first support frame 25, and a second transmission shaft 30 is rotatably installed on the two second shaft sleeves 27. A second transmission gear 31 meshing with a fourth transmission gear 33 is fixedly arranged on the two second transmission shafts 30, and the two second transmission gears 31 are driven to rotate synchronously by the fourth transmission gear 33, and the rotation directions of the two second transmission gears 31 are opposite. A third transmission shaft 34 is rotatably installed on the two third shaft sleeves 29, and one end of the two third transmission shafts 34 A third transmission gear 35 meshing with the first transmission gear 37 is fixedly provided, a second U-shaped bracket 38 is slidably installed on the explosion-proof box 1, and fourth shaft sleeves 39 are rotatably installed at both ends of the second U-shaped bracket 38. One end of the two fourth shaft sleeves 39 is respectively slidably installed on the two third transmission shafts 34, and the other end of the two fourth shaft sleeves 39 is fixedly provided with a connector 41. A connecting groove 32 corresponding to the connecting head 41 is fixedly provided on the end of the two second transmission shafts 30 away from the second transmission gear 31. The second U-shaped bracket 38 is operated to drive the connecting head 41 on one side to be inserted into the corresponding connecting groove 32, so that the third transmission shaft 34 is driven to rotate through the second transmission shaft 30 on this side, and the connecting head 41 on the other side is away from the connecting groove 32.

[0030] A support plate 42 slidably mounted on the explosion-proof box 1 is fixedly provided on the second U-shaped bracket 38, and an adjustment component is provided between the support plate 42 and the explosion-proof box 1. The adjustment component is operated to drive the support plate 42 to move along the explosion-proof box 1, which will drive the connecting head 41 on one side to be inserted into the corresponding connecting groove 32, and the connecting head 41 on the other side is away from the corresponding connecting groove 32.

[0031] A first sleeve 22 is arranged between the L-shaped partition 13 and the annular cover body 16. The outer wall of the first sleeve 22 is connected and fixed to the annular cover body 16 through a first support rod 17. A first mounting hole 18 connected to the first sleeve 22 is opened on the L-shaped partition 13. The first transmission shaft 23 is rotatably installed in the first sleeve 22 and the first mounting hole 18.

[0032] Specifically, there are three first support rods 17 , which are evenly distributed along the axial direction of the annular cover 16 , and the blades on the two fans 24 are in opposite directions. The fans 24 are driven to rotate by the first transmission shaft 23 to suck the gas outside the explosion-proof box 1 into the explosion-proof box 1 .

[0033] In actual operation, the fan 24 on one side is driven to rotate by the first transmission shaft 23. Since the second gas delivery cavity 19 and the third gas delivery cavity 21 are both sealed cavities, the gas outside the explosion-proof box 1 passes through the filter box 45, the second gas delivery cavity 19, the third gas delivery cavity 21 and the annular cover 16 in sequence, and enters the first gas delivery cavity 12, and is discharged through the first ventilation hole 11 on the second partition 10 on this side, and the heat of the switched reluctance motor 8 is taken away by the airflow, and is discharged through the first ventilation hole 11 on the second partition 10 on the other side. It enters the first gas delivery cavity 12, and then passes through the annular cover 16, the third gas delivery cavity 21, the second gas delivery cavity 19 and the filter box 45 on the other side in turn, and the impurities filtered in the filter box 45 are back-blown away, thereby realizing the self-cleaning function of the exhaust end filter box 45. By switching the working states of the fans 24 on both sides, the direction of the airflow is adjusted, and the function of circulating self-cleaning of the filter boxes 45 on both sides is realized. While improving the heat dissipation effect, impurities in the gas are filtered and the function of backwashing the filter box 45 is realized.

[0034] The first sealing plate 14 is provided with a through hole, and the annular cover 16 is sealed and installed in the through hole and communicated with the first gas delivery cavity 12 . A gap communicating with the second gas delivery cavity 19 is reserved between the first sealing plate 14 and the inner wall of the explosion-proof box 1 .

[0035] There are multiple first ventilation holes 11 , and the multiple first ventilation holes 11 are distributed on the second partition plate 10 in a matrix shape.

[0036] In actual operation, gas is circulated through the first ventilation holes 11 distributed in a matrix shape, so that the airflow evenly cools the switched reluctance motor 8, thereby improving the cooling effect and uniform heat dissipation of the switched reluctance motor 8, and further improving the explosion-proof function.

[0037] Specifically: the first support frame 25 is installed in the explosion-proof box 1 by bolts and nuts, and the first support frame 25 is fixedly provided with mutually symmetrical first U-shaped brackets 26, two second shaft sleeves 27 are fixedly installed on the upper sides of both ends of the first U-shaped bracket 26, and the two second shaft sleeves 27 are symmetrical about the rotating shaft 812, and the sides of the first U-shaped bracket 26 are fixedly provided with L-shaped brackets 28, two third shaft sleeves 29 are respectively fixedly installed on the two L-shaped brackets 28, and the two third shaft sleeves 29 are symmetrical about the rotating shaft 812, and the two fourth shaft sleeves 39 are respectively located between the two second transmission shafts 30 and the third transmission shaft 34; A plurality of key slots 36 evenly distributed axially are provided on one end of the third transmission shaft 34 near the fourth sleeve 39. A key body 40 corresponding to the plurality of key slots 36 is fixedly provided in the fourth sleeve 39. The key body 40 is slidably installed in the key slot 36. The connecting groove 32 is a conical groove, and the connecting head 41 is a conical body. The connecting head 41 is inserted into the connecting groove 32 by interference fit.

[0038] Specifically: the adjustment component includes a first mounting seat 6 fixedly mounted on the explosion-proof box 1, a screw hole is provided on the first mounting seat 6, a first sliding opening 4 is provided on the explosion-proof box 1, a support plate 42 is slidably mounted in the first sliding opening 4, the support plate 42 extends out of the explosion-proof box 1, and an adjusting bolt 43 is rotatably installed on one side, the adjusting bolt 43 is threadedly installed in the screw hole, and the operation of the adjusting bolt 43 drives the support plate 42 to move, and the support plate 42 drives the two fourth shaft sleeves 39 to move along the third transmission shaft 34 through the second U-shaped bracket 38, when one side of the support plate 42 contacts the explosion-proof box 1 at the first sliding opening 4, the fourth shaft sleeve 39 on the opposite side drives the connector 41 to be inserted into the connecting groove 32, and the fourth shaft sleeve 39 on the other side drives the connector 41 away from the connecting groove 32, similarly, when the other side of the support plate 42 contacts the explosion-proof box 1 at the other end of the first sliding opening 4, the fourth shaft sleeve 39 on the other side drives the connector 41 to be inserted into the connecting groove 32; Specifically: a piston cavity 7 connected to the first sliding port 4 is provided on the explosion-proof box 1, and the piston cavity 7 is distributed on both sides of the first sliding port 4. Piston plates 44 are fixedly provided at both ends of the support plate 42. The two piston plates 44 are sealed and slidably installed in the piston cavity 7. The piston plate 44 is driven to move along the piston cavity 7 by the support plate 42, and the first sliding port 4 is always sealed by the piston plates 44 at both ends to prevent the gas in the explosion-proof box 1 from flowing through the first sliding port 4 during use.

[0039] In actual operation: the fourth transmission gear 33 is driven to rotate by the rotating shaft 812, and the second transmission gears 31 on both sides are driven to rotate synchronously in the opposite direction by the fourth transmission gear 33, and the two second transmission shafts 30 are driven to rotate in the second shaft sleeve 27 by the two second transmission gears 31 respectively, and the fourth shaft sleeve 39 is driven to rotate by the second transmission shaft 30, and the third transmission shaft 34 is prevented from idling in the fourth shaft sleeve 39 by the cooperation between the key body 40 and the key groove 36, and the adjustment bolt 43 is operated to drive the support plate 42 to move along the first sliding opening 4, and the support plate 42 drives the fourth shaft sleeves 39 at both ends to move through the second U-shaped bracket 38, and when the connector 41 on the fourth shaft sleeve 39 on one side is inserted into the connecting groove 32 of the second transmission shaft 30, the third transmission shaft 34 on this side passes through the fourth shaft sleeve The second transmission shaft (30) is driven by the second transmission gear 31 and the first transmission gear 37 to rotate the fan 24 on the side through the first transmission shaft 23, so that the gas outside the explosion-proof box 1 on the side is sucked in. Since the connector 41 on the fourth shaft sleeve 39 on the other side is not inserted into the connecting groove 32, the third transmission shaft 34 is not connected to the second transmission shaft 30 through the fourth shaft sleeve 39, so that the fan 24 on the other side is in a stopped state. The gas in the explosion-proof box 1 enters through the first ventilation hole 11 of the second partition plate 10 on the side and is discharged through the filter box 45, so that the filter box 45 on the side is backwashed and cleaned of impurities. By adjusting the position of the support plate 42 on the explosion-proof box 1, the working state of the fans 24 on both sides is switched. Example 2

[0040] On the basis of Example 1, the cross-section of the connecting head 41 is "square", and the cross-section of the connecting groove 32 is "square" corresponding to the connecting head 41. By inserting the connecting head 41 into the connecting groove 32, the second transmission shaft 30 and the fourth shaft sleeve 39 are connected in transmission, thereby improving the stability of the transmission. When operating the adjusting bolt 43, the rotating shaft 812 can be manually rotated to adjust the position of the connecting groove 32, and the connecting head 41 and the connecting groove 32 can be aligned in coordination with the rotation of the adjusting bolt 43. Example 3

[0041] On the basis of Example 1 or Example 2, Figure 18-19 As shown, a pressure limiting valve assembly 20 is provided in each of the first ventilation holes. The pressure limiting valve assembly 20 is divided into two groups, and the two groups of pressure limiting valve assemblies 20 have opposite directions of limiting airflow pressure. The two groups of pressure limiting valve assemblies 20 are staggeredly distributed in the first ventilation holes of the second partition 10, and the installation directions of the pressure limiting valve assemblies 20 on the two second partitions 10 correspond to each other.

[0042] The pressure limiting valve assembly 20 includes an annular sealing plate 2001 and a second support rod 2003 which are parallel to each other and fixedly installed in the first ventilation hole. A truncated cone 2002 is fixedly arranged in the middle position of the second support rod 2003. A sealing head 2004 is slidably installed at the center hole of the annular sealing plate 2001. An elastic component 2005 is arranged between the sealing head 2004 and the truncated cone 2002. The sealing head 2004 is pushed by the elastic component 2005 to seal the center hole of the annular sealing plate 2001, and the elastic force of the elastic component 2005 is less than the pressure of the airflow generated by the fan.

[0043] Specifically, the elastic component 2005 is a limit spring, one end of which is connected and fixed to the plugging head 2004 , and the other end of which is connected and fixed to the truncated table 2002 .

[0044] In actual operation, the pressure limiting valve assembly 20 allows the gas to be evenly discharged through the first ventilation hole 11 on the second partition 10 on one side, so that the gas in the two second partitions 10 is pressure-limited and discharged through the first ventilation hole 11 on the second partition 10 on the other side. The airflow evenly cools the switched reluctance motor 8, thereby improving the cooling effect and uniform heat dissipation of the switched reluctance motor 8, and further improving the explosion-proof function. Example 4

[0045] On the basis of any of the above embodiments, a first opening 5 is provided on both sides of the explosion-proof box 1, a mounting frame 46 is fixedly provided on the outer wall of the filter box 45, and the mounting frame 46 is detachably mounted on the explosion-proof box 1, the filter box 45 seals through the first opening 5, and the end is sealed and connected to the first partition 9, the filter box 45 is located in the explosion-proof box 1, and an exhaust port 48 is provided on the side close to the L-shaped partition 13, the filter box 45 is located on the outside of the explosion-proof box 1, and an air inlet 47 is provided at the front end away from the side of the L-shaped partition 13, and a filter assembly is provided in the filter box 45 between the air inlet 47 and the exhaust port 48.

[0046] Specifically: the mounting frame 46 is provided with a plurality of through holes, and the explosion-proof box 1 is provided with screw holes corresponding to the plurality of through holes. Bolts are passed through the through holes and are threadedly connected with the screw holes to seal the mounting frame 46 on the explosion-proof box 1. The filter assembly includes a first filter cabinet 51 sealed and installed in the filter box 45, and an air guide frame 53 is arranged on the first filter cabinet 51, and the air guide frame 53 seals and passes through the air inlet 47. The filter assembly also includes a plurality of second filter cabinets 54 sealed and installed in the filter box 45. The side of the first filter cabinet 51 close to the second filter cabinet 54, the end surface where the first filter cabinet 51 and the air guide frame 53 are connected, and the two side surfaces of the second filter cabinet 54 are all filter nets 52, and are interconnected. The filter box 45 drives the first filter cabinet 51 and the plurality of second filter cabinets 54 to be sealed and connected with the first partition plate 9. A third U-shaped bracket 49 is slidably installed in the filter box 45, and a fixing assembly 50 is arranged between the third U-shaped bracket 49 and the inner wall of the filter box 45. The fixing assembly 50 is operated to push the third U-shaped bracket 49 to seal and install the plurality of second filter cabinets 54 and the first filter cabinet 51 in the filter box 45.

[0047] Specifically: the fixing assembly 50 includes a screw fixedly installed on the third U-shaped bracket 49 and the filter box 45, and the thread directions of the two screws are opposite. Double threaded tubes are threadedly installed on the two screws. The double threaded tubes are operated to drive the two screws to move, thereby adjusting the position of the third U-shaped bracket 49. Multiple second filter cabinets 54 and the first filter cabinet 51 are installed in the filter box 45 through the third U-shaped bracket 49, which is convenient for disassembly and installation.

[0048] Specifically: a plurality of filter screens 52 are arranged in the first filter cabinet 51 for cleaning dust in the gas, and a plurality of second filter cabinets 54 are filled with adsorption filter materials.

[0049] In actual operation, dust impurities are filtered through the first filter cabinet 51, and by adding different adsorption filter materials in multiple second filter cabinets 54, the gas in different scenes can be filtered, thereby further improving the explosion-proof function. It is suitable for use in different scenes, has good marketability, and improves economic benefits. Example 5

[0050] On the basis of any of the above embodiments, the switched reluctance motor 8 includes an explosion-proof shell 81, on which a rear end cover 82 and a front end cover 83 are provided, on which a rear heat sink fin 85 is fixedly provided, on which a front heat sink fin 86 is provided, on which a heat sink fin 87 evenly distributed axially is provided, and in which a stator core 88 is fixedly provided inside the explosion-proof shell 81, on which a heat-conducting tooth 89 connected to the heat sink fin 87 is provided, and on which a plurality of heat-conducting rods 810 extending to the rear heat sink fin 85 and the front heat sink fin 86 are fixedly provided, and in which a rotor 811 is rotatably installed, and on which a rotating shaft 812 penetrating the front end cover 83 is provided.

[0051] Specifically: the explosion-proof housing 81 is fixedly provided with a second mounting seat 84 , and the second mounting seat 84 is provided with a mounting hole, and the explosion-proof housing 81 is mounted in the explosion-proof box 1 by passing bolts through the mounting hole.

[0052] In actual operation, the heat generated in the stator core 88 is transferred to the front heat sink fins 86, the rear heat sink fins 85 and the heat sink 87 through the heat-conducting teeth 89 and the heat-conducting rods 810, thereby improving the heat conduction inside the switched reluctance motor 8, thereby improving the heat dissipation effect and further improving the explosion-proof function. Example 6

[0053] Based on Example 5, Fig.12 As shown, a fourth partition plate 55 is sealed and installed between two L-shaped partition plates 13 in the explosion-proof box 1. A mounting hole is opened on the fourth partition plate 55, and the rotating shaft 812 passes through the mounting hole to reduce the volume inside the explosion-proof box 1, thereby improving the heat dissipation effect.

[0054] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A switched reluctance motor with explosion-proof function, comprising an explosion-proof box (1) and a switched reluctance motor (8), wherein the switched reluctance motor (8) is detachably mounted in the explosion-proof box (1), and the switched reluctance motor (8) comprises a rotating shaft (812), and one end of the rotating shaft (812) passes through the explosion-proof box (1), characterized in that: A fourth transmission gear (33) is fixedly arranged on the portion of the rotating shaft (812) between the explosion-proof box (1) and the switched reluctance motor (8); two mutually symmetrical first partitions (9) are fixedly arranged on both sides of the switched reluctance motor (8) in the explosion-proof box (1); a second partition (10) is fixedly arranged between the switched reluctance motor (8) and the first partition (9) in the explosion-proof box (1); a first air delivery cavity (12) is reserved between the first partition (9) and the second partition (10); a first ventilation hole (11) is provided on the second partition (10); first sealing plates (14) are fixedly arranged at the ends of the first partition (9) and the second partition (10); an annular cover (16) is fixedly arranged on the first sealing plate (14); the annular cover (16) passes through the first sealing plate (14) and is sealed and connected to the first air delivery cavity (12); a fan is rotatably installed in the annular cover (16). (24), an L-shaped partition (13) is fixedly mounted on one end of the first sealing plate (14), and a third partition (15) is fixedly mounted on the other end for sealing the portion of the annular cover (16) extending out of the first partition (9), a second gas delivery cavity (19) is formed between the first partition (9) and the explosion-proof box (1), and is sealed and connected to the first gas delivery cavity (12) through the annular cover (16), the L-shaped partition (13), the first sealing plate (15) and the explosion-proof box (1). 4) A third gas delivery cavity (21) is formed between the third partition plate (15) and the explosion-proof box (1), and filter boxes (45) are detachably installed on both sides of the explosion-proof box (1), and the filter box (45) is connected to the second gas delivery cavity (19) through the third gas delivery cavity (21). The fan (24) on one side is started to allow the gas outside the filter box (45) to enter the explosion-proof box (1) through the filter box (45) on that side, and to be discharged through the filter box (45) on the other side; A first transmission shaft (23) is fixedly arranged on the fan (24), the first transmission shaft (23) passes through the L-shaped partition (13) and is fixedly arranged with a first transmission gear (37), a first support frame (25) is fixedly arranged in the explosion-proof box (1), two second shaft sleeves (27) and two third shaft sleeves (29) are fixedly arranged on the first support frame (25) and are symmetrical to each other, a second transmission shaft (30) is rotatably mounted on the two second shaft sleeves (27), a second transmission gear (31) meshing with the fourth transmission gear (33) is fixedly arranged on the two second transmission shafts (30), a third transmission shaft (34) is rotatably mounted on the two third shaft sleeves (29), and a third transmission gear (31) meshing with the first transmission gear (37) is fixedly arranged at one end of the two third transmission shafts (34). A transmission gear (35), a second U-shaped bracket (38) is slidably mounted on the explosion-proof box (1), and fourth shaft sleeves (39) are rotatably mounted on both ends of the second U-shaped bracket (38), one end of the two fourth shaft sleeves (39) are respectively slidably mounted on the two third transmission shafts (34), and the other ends of the two fourth shaft sleeves (39) are fixedly provided with connecting heads (41), and one end of the two second transmission shafts (30) away from the second transmission gear (31) is fixedly provided with connecting grooves (32) corresponding to the connecting heads (41), and the second U-shaped bracket (38) is operated to drive the connecting heads (41) on one side to be inserted into the corresponding connecting groove (32), so that the third transmission shaft (34) is driven to rotate through the second transmission shaft (30) on this side, and the connecting heads (41) on the other side are away from the connecting groove (32); A support plate (42) slidably mounted on the explosion-proof box (1) is fixedly arranged on the second U-shaped bracket (38); an adjustment component is arranged between the support plate (42) and the explosion-proof box (1); the adjustment component is operated to drive the support plate (42) to move along the explosion-proof box (1), so that the connecting head (41) on one side is inserted into the corresponding connecting groove (32), and the connecting head (41) on the other side is away from the corresponding connecting groove (32).

2. The switched reluctance motor with explosion-proof function according to claim 1, characterized in that: A first sleeve (22) is arranged between the L-shaped partition (13) and the annular cover (16); the outer wall of the first sleeve (22) is connected and fixed to the annular cover (16) via a first support rod (17); a first mounting hole (18) connected to the first sleeve (22) is opened on the L-shaped partition (13); and the first transmission shaft (23) is rotatably mounted in the first sleeve (22) and the first mounting hole (18).

3. The switched reluctance motor with explosion-proof function according to claim 2, characterized in that: The first sealing plate (14) is provided with a through hole, the annular cover (16) is sealed and installed in the through hole and is connected to the first gas transmission cavity (12), and a gap is reserved between the first sealing plate (14) and the inner wall of the explosion-proof box (1) for connecting to the second gas transmission cavity (19).

4. The switched reluctance motor with explosion-proof function according to claim 3, characterized in that: There are a plurality of the first ventilation holes (11), and the plurality of the first ventilation holes (11) are distributed on the second partition plate (10) in a matrix pattern.

5. The switched reluctance motor with explosion-proof function according to claim 4, characterized in that: A pressure limiting valve assembly (20) is arranged in each of the first ventilation holes (11), and the pressure limiting valve assembly (20) is divided into two groups, and the two groups of pressure limiting valve assemblies (20) have opposite directions of limiting airflow pressure, and the two groups of pressure limiting valve assemblies (20) are staggeredly distributed in the first ventilation holes (11) of the second partition plate (10), and the installation directions of the pressure limiting valve assemblies (20) of the two second partition plates (10) are corresponding.

6. The switched reluctance motor with explosion-proof function according to claim 5, characterized in that: The pressure-limiting valve assembly (20) comprises an annular sealing plate (2001) and a second support rod (2003) which are fixedly mounted in parallel in the first ventilation hole (11); a truncated cone (2002) is fixedly arranged in the middle position of the second support rod (2003); a sealing head (2004) is slidably mounted at the center hole of the annular sealing plate (2001); an elastic component (2005) is arranged between the sealing head (2004) and the truncated cone (2002); the sealing head (2004) is pushed by the elastic component (2005) to seal the center hole of the annular sealing plate (2001); and the elastic force of the elastic component (2005) is less than the pressure of the airflow generated by the fan.

7. A switched reluctance motor with explosion-proof function according to any one of claims 1 to 6, characterized in that: A plurality of key slots (36) uniformly distributed in the axial direction are formed on one end of the third transmission shaft (34) close to the fourth shaft sleeve (39); a key body (40) corresponding to the plurality of key slots (36) is fixedly arranged in the fourth shaft sleeve (39); the key body (40) is slidably installed in the key slot (36); the connecting groove (32) is a conical groove; the connecting head (41) is a conical body; and the connecting head (41) is inserted into the connecting groove (32) by interference fit.

8. The switched reluctance motor with explosion-proof function according to claim 7, characterized in that: The explosion-proof box (1) is provided with a first opening (5) on both sides; a mounting frame (46) is fixedly provided on the outer wall of the filter box (45); the mounting frame (46) is detachably mounted on the explosion-proof box (1); the filter box (45) passes through the first opening (5) in a sealed manner, and an end portion is sealedly connected to a first partition (9); the filter box (45) is located in the explosion-proof box (1), and an exhaust port (48) is provided on a side close to the L-shaped partition (13); the filter box (45) is located outside the explosion-proof box (1), and an air inlet (47) is provided at the front end of the side away from the L-shaped partition (13); a filter assembly is provided in the filter box (45) between the air inlet (47) and the exhaust port (48).

9. The switched reluctance motor with explosion-proof function according to claim 8, characterized in that: The filter assembly comprises a first filter cabinet (51) which is sealed and installed in a filter box (45); an air guide frame (53) is arranged on the first filter cabinet (51); the air guide frame (53) seals and passes through an air inlet (47); the filter assembly also comprises a plurality of second filter cabinets (54) which are sealed and installed in the filter box (45); a side surface of the first filter cabinet (51) close to the second filter cabinet (54) and two sides of the second filter cabinet (54) are both filter screens (52) and are interconnected; the filter box (45) drives the first filter cabinet (51) to seal and connect the plurality of second filter cabinets (54) with the first partition plate (9); a third U-shaped bracket (49) is slidably installed in the filter box (45); a fixing assembly (50) is arranged between the third U-shaped bracket (49) and the inner wall of the filter box (45); the fixing assembly (50) is operated to push the third U-shaped bracket (49) to seal and install the plurality of second filter cabinets (54) and the first filter cabinet (51) in the filter box (45).

10. A switched reluctance motor with explosion-proof function according to claims 1-9, characterized in that: The switched reluctance motor (8) comprises an explosion-proof housing (81), wherein a rear end cover (82) and a front end cover (83) are arranged on the explosion-proof housing (81), a rear heat dissipation fin (85) is fixedly arranged on the rear end cover (82), a front heat dissipation fin (86) is arranged on the front end cover (83), and a heat dissipation fin (87) evenly distributed in the axial direction is arranged on the explosion-proof housing (81), a stator core (88) is fixedly arranged in the explosion-proof housing (81), a heat conduction tooth (89) connected to the heat dissipation fin (87) is arranged on the stator core (88), a plurality of heat conduction rods (810) extending to the rear heat dissipation fin (85) and the front heat dissipation fin (86) are fixedly arranged on the stator core (88), and a rotor (811) is rotatably mounted in the stator core (88), and a rotating shaft (812) penetrating the front end cover (83) is arranged on the rotor (811).

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