A high-protection low-speed direct-drive reluctance motor

Abstract

The invention provides a high-protection low-speed direct-drive reluctance motor, which relates to the technical field of reluctance motors, including a machine base, wherein a bottom plate, a machine shell and a top plate are arranged on the top of the machine base in order from bottom to top, and two sets of buckle assemblies are arranged on the top plate, a pull-slide rod is slidably arranged at the center of the boss seat of the pull-slide rod, a transverse sliding plate for driving a pressure ring to translate is rotatably arranged on a rotating seat at the lower end of the pull-slide rod, and one end of the transverse sliding plate is slidably arranged on the sliding table, two swing rods are arranged on both sides of the pressure ring, the lower end of the swing rod is hinged with the pressure ring, and the upper end of the swing rod is hinged with a hanging rotating seat, the pressure ring is in the shape of a semicircular ring, and a sealing gasket is arranged on the inner side surface and the upper surface of the circular ring of the pressure ring; during the rising process of the pull-slide rod, the lifting plate drives the pressure ring to translate, and the inner circular ring surfaces of the two sealing gaskets contact the main shaft to clamp the main shaft, so that the main shaft and rolling bearing can be prevented from being damaged due to impact load during the transportation of the motor, thereby improving the impact resistance of the motor.

Description

Technical Field

[0001] The present invention relates to the technical field of reluctance motors, and more specifically, to a high-protection low-speed direct-drive reluctance motor. Background Art

[0002] Reluctance motors are divided into switched reluctance motors and synchronous reluctance motors. Synchronous reluctance motors follow the principle of closed path with minimum reluctance, and generate reluctance torque by changing the reluctance caused by the rotor at different positions to drive the motor to rotate. Low-speed direct-drive reluctance motors have the advantages of high efficiency and large torque output, and are becoming the preferred solution in many fields.

[0003] In the prior art, the main shaft of a low-speed direct-drive reluctance motor often relies on rolling bearings for support. Although this design is common, it is inevitable to encounter vibration and shaking during the transportation or operation of the motor, which may cause the rolling bearing and the main shaft to be subjected to unexpected impact loads, thereby causing damage. In addition, although the front and rear ends of the rolling bearing are equipped with shaft sealing devices to prevent the intrusion of external dust, the actual effect is limited. Especially when the motor is stored for a long time, dust can still enter the motor through the gap, which undoubtedly weakens the overall protection performance of the motor. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a high-protection low-speed direct-drive reluctance motor.

[0005] To solve the above technical problems, the present invention is implemented through the following technical solutions: a high-protection low-speed direct-drive reluctance motor, comprising a base, a bottom plate, a casing and a top plate are arranged above the base from bottom to top in sequence, a partition is arranged inside the casing, a main shaft is arranged at the central axis of the casing, rolling bearings are arranged between the main shaft and the top plate and between the main shaft and the partition, a rotor is arranged above the main shaft and inside the casing, a partition is arranged on the inner side wall of the casing, a stator is arranged on the inner ring of the partition to cooperate with the rotor, two through holes are symmetrically arranged on the top plate, and two groups of buckle assemblies are arranged on the top plate, the buckle assembly includes a boss seat, and the boss seats of the two groups of buckle assemblies are respectively arranged at the two through holes of the top plate, A pull-slide rod is slidably arranged at the center of the boss seat, a pull ear is arranged at the upper end of the pull-slide rod, a ring platform is arranged in the middle of the pull-slide rod, a spring is sleeved on the outer side of the pull-slide rod, and the two ends of the spring are respectively connected to the boss seat and the ring platform, a clamping cavity and a swivel seat are arranged at the lower end of the pull-slide rod in sequence, a horizontal slide plate is rotatably arranged on the swivel seat, and one end of the horizontal slide plate is slidably arranged on the slide table, the slide table is vertically arranged below the top plate, and a lifting plate is arranged at the other end of the horizontal slide plate; a pressure ring is arranged between the lifting plate and the top plate of the two sets of buckle assemblies Two rocker arms are provided on both sides of the pressure ring 1, the lower end of the rocker arm is hinged to the pressure ring 1, the upper end of the rocker arm is hinged to a swivel seat, the swivel seat is fixedly arranged below the top plate, a torsion spring is sleeved on the rotating shaft of the swivel seat, and the two ends of the torsion spring are respectively connected to the rocker arm and the swivel seat, and a baffle rod for blocking the rotation of the rocker arm is provided on the side of the swivel seat; the pressure ring 1 is in the shape of a semicircular ring, and a sealing gasket 1 is provided on the inner side surface and the upper surface of the circular ring of the pressure ring 1, and the radius of the semicircular ring of the sealing gasket 1 is equal to the radius of the main shaft.

[0006] As a preferred technical solution of the present invention, wedge blocks are symmetrically slidably provided on both sides of the card cavity, and a second spring is connected between the two wedge blocks and located inside the card cavity.

[0007] As a preferred technical solution of the present invention, a double clamping platform is provided below the top plate and on the side of the wedge block, and clamping plate one and clamping plate two are provided on the double clamping platform in sequence from bottom to top on the side facing the wedge block.

[0008] As a preferred technical solution of the present invention, a plurality of heat sinks are evenly arranged on the outer side of the casing, air flow holes for ventilation are provided on the side of the casing and between two heat sinks, and the air flow holes are located below the partition, and guide plates for air flow guidance are provided on the heat sink; and a plurality of ventilation holes for ventilation are evenly arranged on the bottom plate.

[0009] As a preferred technical solution of the present invention, a heat dissipation shaft is provided at the center position of the base plate, a rolling bearing is provided between the heat dissipation shaft and the base plate, the outer ring of the rolling bearing is connected to the base plate, the inner ring of the rolling bearing is connected to the heat dissipation shaft, and an impeller for heat dissipation is provided on the heat dissipation shaft; an inner cavity is provided in the middle of the heat dissipation shaft, a spline plate which passes through the inner cavity is provided above the heat dissipation shaft, a smooth column is slidably provided in the inner cavity, a spring three is connected between the bottom of the inner cavity and the smooth column, a spline platform which is consistent with the shape of the spline plate is provided on the upper part of the smooth column, and a limit plate is provided on the spline platform; a spline groove for clamping the spline platform is provided at the bottom of the main shaft.

[0010] As a preferred technical solution of the present invention, an L-shaped slide plate is connected to the lower surface of the horizontal slide plate, a slide groove is arranged in the L-shaped slide plate, and the slide groove consists of a horizontal section and a vertical section. The lower end of the slide table is connected to a support seat, and a seesaw is rotatably arranged at the lower end of the support seat, and a seesaw is arranged at the upper end of the seesaw, and a seesaw bar is arranged, and the seesaw bar forms a sliding match with the slide groove, and a seesaw groove is arranged at the lower end of the seesaw, and two sliding pressure rods are slidably arranged on the partition, and the sliding pressure rod passes through the partition, and a slide table is arranged at the upper end of the sliding pressure rod, and the slide The sliding table of the pressure rod forms a sliding fit with the corresponding rocker slide groove of the rocker plate, and the lower end of the sliding pressure rod passes through the partition; a pressure wedge block is connected to the sliding pressure rod and is located below the partition, and a double inclined plate is provided on the side of the pressure wedge block, and the double inclined plate is slidably arranged on the sliding seat, and the sliding seat is fixedly arranged on the lower surface of the partition, and a spring four is connected between the double inclined plate and the sliding seat, and the end of the double inclined plate close to the pressure wedge block is an inclined surface one that cooperates with the pressure wedge block, and the side of the double inclined plate close to the limit plate is an inclined surface two that drives the limit plate to move.

[0011] As a preferred technical solution of the present invention, a blocking ring disk is provided at the bottom of the sliding pressure rod, and a plurality of ventilation grooves are evenly arranged on the blocking ring disk, and a blocking platform for inserting into the ventilation hole is provided on the lower surface of the blocking ring disk.

[0012] As a preferred technical solution of the present invention, a swivel is rotatably provided on the inner side surface of the casing and located at the air flow hole, the swivel is provided with an air port that coincides with the air flow hole, and two inclined drive plates are provided below the swivel, the inclined drive plates are provided with inclined slide grooves, and the two sliding rods are respectively provided with a frustum that forms a sliding fit with the two inclined slide grooves.

[0013] As a preferred technical solution of the present invention, two pressure rings 2 are provided in the inner ring of the blocking ring disk, and sliding shafts are provided at both ends of the pressure ring 2. The sliding shafts are slidably arranged on the blocking ring disk, and a spring 5 is sleeved on the sliding shaft. The two ends of the spring 5 are respectively connected to the pressure ring 2 and the blocking ring disk, and side bosses are also provided at both ends of the pressure ring 2. The upper surface of the base plate is provided with an inclined drive rod contacting the side boss. The inner side surface and the lower surface of the circular ring of the pressure ring 2 are jointly provided with a sealing gasket 2, and the radius of the semicircular ring of the sealing gasket 2 is equal to the radius of the main shaft.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) the present invention pulls the pull ears of the two buckle assemblies to clamp the insert wedge block on the upper surface of the clamping plate 2. During this process, after the lifting plate begins to touch the pressure ring 1, all the rocker arms rotate simultaneously, the lifting plate drives the pressure ring 1 to translate, and the pressure ring 1 drives the sealing gasket 1 to translate synchronously. The inner annular surfaces of the two sealing gaskets 1 contact the main shaft to clamp the main shaft, thereby preventing the main shaft and rolling bearing from being damaged due to impact loads during the transportation of the motor, thereby improving the anti-impact protection of the motor; at the same time, the upper planes of the two sealing gaskets 1 contact the shaft seal retaining ring below the rolling bearing, thereby preventing dust from entering the inside of the housing 3 through the rolling bearing on the top plate, thereby improving the anti-dust protection of the motor.

[0015] (2) The present invention pulls the ears of the two buckle assemblies to make the insert wedge block stuck on the upper surface of the clamping plate. During this process, the sliding rod drives the pressure wedge block to move downward synchronously. The inclined surface of the pressure wedge block acts on the inclined surface one to drive the double inclined plates to move in the direction of the limit plate. The inclined surface two acts on the limit plate to make the limit plate and the spline table move downward, that is, the smooth column slides downward in the inner cavity, the spring three is compressed, and the spline table is separated from the spline groove. Therefore, the main shaft no longer drives the spline table to rotate, and then the heat dissipation shaft and the impeller no longer rotate, which has an energy-saving effect.

[0016] (3) When the heat dissipation shaft and impeller of the present invention no longer rotate, the sliding pressure rod moves to the lower position, the blocking ring plate contacts the bottom plate, the blocking platform is inserted into the vent, and dust is prevented from flowing in from the blocking platform. The round table slides in the inclined slide groove, thereby driving the inclined drive plate and the rotating ring to rotate. The air port and the air flow hole no longer overlap, and the rotating ring blocks dust from flowing in from the air flow hole. Therefore, dust can be prevented from entering the casing from the rolling bearing on the partition, thereby improving the protection performance of the motor.

[0017] (4) When the heat dissipation shaft and the impeller of the present invention are no longer rotating, the blocking ring plate moves downward, driving the two pressure rings 2 to move downward synchronously. The oblique drive rod acts on the side boss to drive the side boss to move toward the center of the heat dissipation shaft. The two pressure rings 2 respectively bring the inner side surfaces of the corresponding semicircular rings of the sealing gasket 2 to contact the heat dissipation shaft to clamp the heat dissipation shaft, thereby preventing the heat dissipation shaft from being damaged by impact and improving the impact protection of the motor. At the same time, the two pressure rings 2 respectively bring the lower planes of the corresponding sealing gasket 2 to contact the shaft seal retaining ring on the bottom plate to prevent dust from flowing in through the rolling bearing on the bottom plate and improving the dust protection of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a high-protection low-speed direct-drive reluctance motor of the present invention.

[0019] Figure 2 It is a structural schematic diagram of the overall cross section of the present invention.

[0020] Figure 3 It is a schematic diagram of the overall internal structure of the present invention.

[0021] Figure 4 It is a structural schematic diagram of the top plate cross section of the present invention.

[0022] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0023] Figure 6 It is a structural schematic diagram of the buckle assembly of the present invention.

[0024] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0025] Figure 8 This is a schematic structural diagram of the installation of a pressure ring of the present invention.

[0026] Fig. 9 It is a schematic diagram of the structure inside the card cavity of the present invention.

[0027] Fig.10 It is a schematic diagram of the explosion structure of the casing and the guide vane of the present invention.

[0028] Fig.11 It is a structural schematic diagram of the heat dissipation axis section of the present invention.

[0029] Fig.12 This is a schematic diagram of the structure of the installation of the smooth column of the present invention.

[0030] Fig.13 It is a schematic diagram of the explosion structure of the bottom plate and the blocking ring disk of the present invention.

[0031] Fig.14 It is a structural schematic diagram of the installation of the sliding pressure rod of the present invention.

[0032] Fig.15 for Fig.14 A partial enlarged view of point C in the middle.

[0033] Fig.16 It is a structural schematic diagram of the L-shaped slide plate of the present invention.

[0034] Fig.17 It is a structural schematic diagram of the seesaw of the present invention.

[0035] Fig.18 It is a structural schematic diagram of the swivel installation of the present invention.

[0036] Fig.19 for Fig.18 A partial enlarged view of point D in the middle.

[0037] Fig. 20 It is a structural schematic diagram of the double inclined plate of the present invention.

[0038] Fig.21This is a schematic structural diagram of the installation of the second pressure ring of the present invention.

[0039] Fig. 22 It is a schematic structural diagram of the oblique drive rod and the side boss of the present invention.

[0040] Figure numbers: 1-base; 2-bottom plate; 201-vent; 3-case; 301-heat sink; 302-airflow hole; 4-top plate; 5-partition plate; 6-spindle; 601-spline groove; 7-rolling bearing; 8-rotor; 9-interlayer; 10-stator; 11-boss seat; 12-pull slide rod; 13-pull ear; 14-ring platform; 15-spring 1; 16-card cavity; 17-swivel seat; 18-cross slide plate; 19-slide table; 20-lifting plate; 21-pressure ring 1; 22-rocker; 23-hanging swivel seat; 24-torsion spring; 25-stop rod; 26-sealing pad 1; 27-insertion wedge block; 28-spring 2; 29-double card platform; 2901-card plate 1; 2902-card plate 2; 30-guide plate; 31-heat dissipation shaft; 31 01-inner cavity; 3102-spline plate; 32-impeller; 33-smooth column; 34-spring three; 35-spline platform; 36-limit plate; 37-L slide plate; 3701-slide; 38-rocker; 3801-rocker slide bar; 3802-rocker slide; 39-support seat; 40-sliding rod; 41-pressure wedge block; 42-double inclined plate; 4201-inclined surface 1; 4202- inclined plane 2; 43- sliding seat; 44- spring 4; 45- through-blocking ring plate; 4501- through groove; 4502- blocking platform; 46- swivel; 4601- air port; 47- oblique drive plate; 4701- oblique slide groove; 48- round table; 49- press ring 2; 50- sliding shaft; 51- spring 5; 52- side boss; 53- oblique drive rod; 54- sealing gasket 2. DETAILED DESCRIPTION

[0041] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0042] Example: See Figure 1-22Structural schematic diagram, the present invention provides the following technical solutions: a high-protection low-speed direct-drive reluctance motor, comprising a base 1, wherein a bottom plate 2, a casing 3 and a top plate 4 are arranged above the base 1 from bottom to top in sequence, a partition plate 5 is arranged inside the casing 3, a main shaft 6 is arranged at the central axis of the casing 3, rolling bearings 7 are arranged between the main shaft 6 and the top plate 4 and between the main shaft 6 and the partition plate 5, shaft sealing rings are arranged on the upper and lower sides of the rolling bearing 7, the shaft sealing rings are used to prevent the rolling bearing 7 from moving and prevent dust from entering the casing 3, a rotor 8 is arranged on the main shaft 6 and inside the casing 3, a partition layer 9 is arranged on the inner side wall of the casing 3, and a stator 10 cooperating with the rotor 8 is arranged on the inner ring of the partition layer 9, when working, power is supplied to the stator 10, and the rotating magnetic field generated in the stator 10 drives the rotor 8 and the main shaft 6 to rotate at a low speed.

[0043] The top plate 4 is symmetrically provided with two through holes 401, and two groups of buckle assemblies are provided on the top plate 4, the buckle assembly includes a boss seat 11, the boss seats 11 of the two groups of buckle assemblies are respectively arranged at the two through holes 401 of the top plate 4, a pull slide rod 12 is slidably provided at the center of the boss seat 11, the boss seat 11 and the pull slide rod 12 are tightly sealed, a pull ear 13 is provided at the upper end of the pull slide rod 12, a ring platform 14 is provided at the middle of the pull slide rod 12, a spring 15 is sleeved on the outside of the pull slide rod 12, and the two ends of the spring 15 are respectively connected to the boss seat 11 and the ring platform 14, a card cavity 16 and a swivel seat 17 are provided at the lower end of the pull slide rod 12 in sequence, a transverse slide plate 18 is rotatably provided on the swivel seat 17, and one end of the transverse slide plate 18 is slidably provided on a slide table 19, the slide table 19 is vertically arranged below the top plate 4, and a lifting plate 20 is provided at the other end of the transverse slide plate 18.

[0044] A pressure ring 21 is provided between the lifting plates 20 and the top plate 4 of the two sets of buckle assemblies, and two rocker arms 22 are provided on both sides of the pressure ring 21. The lower end of the rocker arm 22 is hinged to the pressure ring 21, and the upper end of the rocker arm 22 is hinged to a swivel seat 23. The swivel seat 23 is fixed below the top plate 4. A torsion spring 24 is sleeved on the rotating shaft of the swivel seat 23, and the two ends of the torsion spring 24 are respectively connected to the rocker arm 22 and the swivel seat 23. A stop rod 25 for preventing the rocker arm 22 from rotating is provided on the side surface of the swivel seat 23.

[0045] The pressure ring 21 is in the shape of a semicircular ring. The inner side surface and the upper surface of the pressure ring 21 are provided with a sealing gasket 26 . The radius of the semicircular ring of the sealing gasket 26 is equal to the radius of the main shaft 6 .

[0046] Specifically, during operation, the torsion spring 24 provides a torsion force to make the swing rod 22 contact the stopper rod 25, and the seal 26 is separated from the main shaft 6. When the motor is transported, in order to prevent the main shaft 6 and the rolling bearing 7 from being damaged by impact loads, and to prevent dust from entering the housing 3 from the rolling bearing 7 on the top plate 4 due to the motor not being used for a long time. Pull the ears 13 of the two buckle assemblies to move the slide rod 12 upward along the boss seat 11, the spring 15 is compressed, and the power is transmitted through the card cavity 16 and the rotating seat 17, so that the cross slide plate 18 moves upward along the slide table 19. When the lifting plate 20 touches the pressure ring 21, all the rocker rods 22 rotate at the same time, the torsion spring 24 twists and accumulates force, the rocker rod 22 is separated from the blocking rod 25, the lifting plate 20 drives the pressure ring 21 to translate, and the pressure ring 21 drives the sealing gasket 26 to translate synchronously. The inner annular surfaces of the two sealing gaskets 26 contact the main shaft 6 to clamp the main shaft 6, so as to prevent the main shaft 6 and the rolling bearing 7 from being damaged by impact loads during the transportation of the motor; at the same time, the upper planes of the two sealing gaskets 26 contact the shaft seal retaining ring under the rolling bearing 7 to prevent dust from entering the casing 3 through the rolling bearing 7 on the top plate 4.

[0047] Insertion wedges 27 are symmetrically and slidably provided on both sides of the card cavity 16 , and a second spring 28 is connected between the two insertion wedges 27 and inside the card cavity 16 .

[0048] A double clamping platform 29 is provided below the top plate 4 and on the side of the wedge block 27 , and a clamping plate 1 2901 and a clamping plate 2 2902 are provided on the double clamping platform 29 in sequence from bottom to top on the side facing the wedge block 27 .

[0049] Specifically, when the sliding rod 12 drives the card cavity 16 to rise from the lower position, the inclined surfaces of the wedge block 27 contact the card plate 1 2901 and the card plate 2 2902 in turn when the wedge block 27 passes through the card plate 1 2901 and the card plate 2 2902 in turn, so that the wedge block 27 moves toward the inside of the card cavity 16, and the spring 28 is compressed. After the wedge block 27 passes through the card plate 1 2901 and the card plate 2 2902 in turn, the spring 28 pops the wedge block 27 out of the card cavity 16, so that the wedge block 27 is stuck on the upper surface of the card plate 1 2901 or the card plate 2 2902. When the pull slide bar 12 needs to be restored to the lower position, the pull ear 13 is rotated to cause the pull ear 13 to twist the pull slide bar 12 and the card cavity 16. At the same time, the spring 15 twists and accumulates force, and the swivel seat 17 is separated from the card plate 2901 or the card plate 2901. The spring 15 provides elastic force to move the pull slide bar 12 downward to the lower position. After the pull ear 13 is released, the spring 15 releases the torsional force, so that the wedge block 27 is realigned with the card plate 1 2901 and the card plate 2 2902.

[0050] Taking into account the need to dissipate heat from the motor, a plurality of heat sinks 301 are evenly provided on the outer side of the casing 3, air flow holes 302 for ventilation are provided on the side of the casing 3 and between two heat sinks 301, and the air flow holes 302 are located below the partition 5, and a guide plate 30 for air flow guidance is provided on the heat sink 301; and a plurality of ventilation holes 201 for ventilation are evenly provided on the bottom plate 2.

[0051] A heat dissipation shaft 31 is provided at the center position of the base plate 2, a rolling bearing 7 is provided between the heat dissipation shaft 31 and the base plate 2, the outer ring of the rolling bearing 7 is connected to the base plate 2, the inner ring of the rolling bearing 7 is connected to the heat dissipation shaft 31, a shaft sealing ring is provided on the upper surface of the base plate 2 and above the rolling bearing 7, an end cover is provided at the bottom of the base plate 2 and below the rolling bearing 7, and an impeller 32 for heat dissipation is provided on the heat dissipation shaft 31; an inner cavity 3101 is provided in the middle of the heat dissipation shaft 31, a spline plate 3102 penetrating the inner cavity 3101 is provided above the heat dissipation shaft 31, a smooth column 33 is slidably provided in the inner cavity 3101, a spring 34 is connected between the bottom of the inner cavity 3101 and the smooth column 33, a spline platform 35 having the same shape as the spline plate 3102 is provided on the upper part of the smooth column 33, and a limit plate 36 is provided on the spline platform 35; a spline groove 601 for clamping the spline platform 35 is provided at the bottom of the main shaft 6.

[0052] Specifically, spring three 34 provides elastic force to keep the smooth column 33 in the upper position, and the spline platform 35 is inserted into the spline groove 601 of the main shaft 6. When the main shaft 6 rotates, the spline platform 35 and the heat dissipation shaft 31 are driven to rotate synchronously, so the impeller 32 on the heat dissipation shaft 31 rotates, drawing air in from the air flow hole 302 and then out from the vent 201; at the same time, the guide plate 30 ensures that the air flow flows along the heat sink 301, which can more efficiently take away the heat on the heat sink 301.

[0053] Considering that the temperature of the motor is not high when the motor load is low or the ambient temperature is low, in order to save energy, it is necessary to stop the impeller 32 from rotating. An L slide plate 37 is connected to the lower surface of the horizontal slide plate 18, and a slide groove 3701 is provided in the L slide plate 37. The slide groove 3701 consists of a horizontal section and a vertical section. The lower end of the slide 19 is connected to a support seat 39. The lower end of the support seat 39 is rotatably provided with a seesaw 38. The upper end of the seesaw 38 is provided with a tilting slide bar 3801. The tilting slide bar 3801 forms a sliding fit with the slide groove 3701. The lower end of the seesaw 38 is provided with a tilting slide groove 3802. Two sliding rods 40 are slidably provided on the partition 5. The sliding rod 40 passes through the partition 9. The upper end of the sliding rod 40 is provided with a slide. The slide of the sliding rod 40 forms a sliding fit with the corresponding tilting slide groove 3802 of the seesaw 38. The lower end of the sliding rod 40 passes through the partition 5.

[0054] Specifically, when the pull slide rod 12 moves upward, when the wedge block 27 is inserted from the lower position into the card plate 1 2901, the upper end of the seesaw 38 slides in the horizontal section of the slide groove 3701, and the center of the seesaw 38 rotates around the support seat 39, and the seesaw slide groove 3802 at the lower end of the seesaw 38 drives the sliding rod 40 to move downward; when the wedge block 27 is inserted from the card plate 1 2901 into the card plate 2 2902, the upper end of the seesaw 38 slides in the vertical section of the slide groove 3701, and the center of the seesaw 38 no longer rotates around the support seat 39, so the sliding rod 40 no longer moves downward.

[0055] A pressure wedge block 41 is connected to the sliding rod 40 and is located below the partition 5. A double inclined plate 42 is provided on the side of the pressure wedge block 41. The double inclined plate 42 is slidably arranged on a slide seat 43. The slide seat 43 is fixedly arranged on the lower surface of the partition 5. A spring four 44 is connected between the double inclined plate 42 and the slide seat 43. The end of the double inclined plate 42 close to the pressure wedge block 41 is an inclined surface one 4201 that cooperates with the pressure wedge block 41, and the side of the double inclined plate 42 close to the limit plate 36 is an inclined surface two 4202 that drives the limit plate 36 to move.

[0056] Specifically, when the sliding rod 40 moves downward, it drives the pressure wedge block 41 to move downward synchronously. The inclined surface of the pressure wedge block 41 acts on inclined surface one 4201, driving the double inclined plate 42 to move in the direction of the limit plate 36. The spring four 44 is compressed, and the inclined surface two 4202 acts on the limit plate 36, so that the limit plate 36 and the spline table 35 move downward, that is, the smooth column 33 slides downward in the inner cavity 3101, the spring three 34 is compressed, and the spline table 35 is separated from the spline groove 601. Therefore, the main shaft 6 no longer drives the spline table 35 to rotate, and then the heat dissipation shaft 31 and the impeller 32 no longer rotate, so the load of the main shaft 6 can be reduced, which has an energy-saving effect.

[0057] Considering that when the impeller 32 is no longer rotating, in order to reduce the dust from flowing into the air hole 302 and the inclined slide groove 4701, and thus prevent the dust from entering the housing 3 from the rolling bearing 7 on the partition 5, it is necessary to block the air hole 302 and the inclined slide groove 4701. The bottom of the sliding rod 40 is provided with a blocking ring plate 45, and a plurality of through grooves 4501 for ventilation are evenly arranged on the blocking ring plate 45, and a blocking platform 4502 for inserting into the vent 201 is provided on the lower surface of the blocking ring plate 45.

[0058] Specifically, when the sliding pressure rod 40 is in the upper position, the blocking ring disc 45 is separated from the base plate 2, and the airflow generated by the impeller 32 flows out to the outside of the casing 3 from the through groove 4501 and the vent 201 in sequence; when the sliding pressure rod 40 moves to the lower position, the blocking ring disc 45 is in contact with the base plate 2, and the blocking platform 4502 is inserted into the vent 201 to prevent dust from flowing in from the blocking platform 4502.

[0059] A swivel 46 is rotatably provided on the inner side surface of the casing 3 and located at the air flow hole 302. The swivel 46 is provided with an air port 4601 that coincides with the air flow hole 302, and two oblique drive plates 47 are provided below the swivel 46. The oblique drive plates 47 are provided with oblique grooves 4701. The two sliding rods 40 are respectively provided with a round table 48 that forms a sliding fit with the two oblique grooves 4701.

[0060] Specifically, when the sliding rod 40 is in the upper position, the air flows in from the air hole 302 and the air port 4601 in sequence; when the sliding rod 40 moves to the lower position, the sliding rod 40 drives the table 48 to move downward synchronously, and the table 48 slides in the inclined slide groove 4701, thereby driving the inclined drive plate 47 and the swivel 46 to rotate, and the air port 4601 and the air hole 302 no longer overlap, and the swivel 46 blocks dust from flowing into the air hole 302.

[0061] Considering that when the impeller 32 is no longer in use or the motor is transported, the heat dissipation shaft 31 is prevented from being damaged by impact load due to motor vibration. Two pressure rings 49 are provided in the inner ring of the blocking ring disk 45, and sliding shafts 50 are fixed at both ends of the pressure ring 49. The sliding shaft 50 is slidably arranged on the blocking ring disk 45, and a spring 51 is sleeved on the sliding shaft 50. The two ends of the spring 51 are respectively connected to the pressure ring 49 and the blocking ring disk 45. Side bosses 52 are also fixed at both ends of the pressure ring 49. The upper surface of the bottom plate 2 is provided with an oblique driving rod 53 in contact with the side boss 52. The inner side surface and the lower surface of the circular ring of the pressure ring 49 are jointly provided with a sealing gasket 54, and the radius of the semicircular ring of the sealing gasket 54 is equal to the radius of the main shaft 6.

[0062] Specifically, during the downward movement of the blocking ring disk 45, the two pressure rings 2 49 are driven to move downward synchronously, and the oblique drive rod 53 acts on the side boss 52 to drive the side boss 52 to move toward the center of the heat dissipation shaft 31, so the pressure ring 2 49 moves synchronously toward the center of the heat dissipation shaft 31, and the spring 51 is stretched; when the blocking ring disk 45 moves to the lower position, the two pressure rings 2 49 respectively bring the inner side surfaces of the semicircular rings of the corresponding sealing gaskets 2 54 to contact the heat dissipation shaft 31, clamping the heat dissipation shaft 31, thereby avoiding damage to the heat dissipation shaft 31; at the same time, the two pressure rings 2 49 respectively bring the lower planes of the corresponding sealing gaskets 2 54 to contact the shaft sealing retaining ring on the base plate 2, thereby avoiding dust from flowing in through the rolling bearing 7 on the base plate 2.

[0063] Working principle: When the motor is working, it supplies power to the stator 10, and the rotating magnetic field generated in the stator 10 drives the rotor 8 and the main shaft 6 to rotate at a low speed. When the motor generates high heat, the heat sink 301 on the housing 3 dissipates heat, and at the same time, the spring 34 provides elastic force to keep the smooth column 33 in the upper position, and the spline platform 35 is inserted into the spline groove 601 of the main shaft 6. When the main shaft 6 rotates, the spline platform 35 and the heat dissipation shaft 31 rotate synchronously, so the impeller 32 on the heat dissipation shaft 31 rotates, and the airflow is drawn in from the airflow hole 302 and the air port 4601, and then drawn out from the through groove 4501 and the vent 201; at the same time, the guide plate 30 ensures that the airflow flows along the heat sink 301, which can more efficiently take away the heat on the heat sink 301.

[0064] When the motor load is low or the ambient temperature is low, the temperature of the motor is not high. In order to save energy, the pull ears 13 of the two buckle assemblies are pulled to move the pull slide rod 12 upward along the boss seat 11, the spring 15 is compressed, and the card cavity 16 starts to rise synchronously from the lower position. When the card cavity 16 carries the insert wedge block 27 through the card plate 2901, the inclined surface of the insert wedge block 27 contacts the card plate 2901, so that the insert wedge block 27 moves into the card cavity 16, and the spring 28 is compressed. After the insert wedge block 27 passes through the card plate 2901, the spring 28 pops the insert wedge block 27 out of the card cavity 16, so that the insert wedge block 27 is stuck on the upper surface of the card plate 2901, so that the pull slide rod 12 no longer descends. During this process, the upper end of the seesaw 38 slides in the horizontal section of the slide groove 3701, and the center of the seesaw 38 rotates around the support seat 39. The seesaw slide groove 3802 at the lower end of the seesaw 38 drives the sliding pressure rod 40 to move downward, and the sliding pressure rod 40 drives the pressure wedge block 41 to move downward synchronously. The inclined surface of the pressure wedge block 41 acts on the inclined surface one 4201, driving the double inclined plate 42 to move in the direction of the limit plate 36. The spring four 44 is compressed, and the inclined surface two 4202 acts on the limit plate 36 to make the limit plate 36 and the spline table 35 move downward, that is, the smooth column 33 slides downward in the inner cavity 3101, the spring three 34 is compressed, and the spline table 35 is separated from the spline groove 601, so the main shaft 6 no longer drives the spline table 35 to rotate, and then the heat dissipation shaft 31 and the impeller 32 no longer rotate, thereby reducing the load on the main shaft 6 and having an energy-saving effect. At the same time, when the sliding rod 40 moves to the lower position, the blocking ring plate 45 contacts the bottom plate 2, and the blocking platform 4502 is inserted into the vent 201 to prevent dust from flowing in from the blocking platform 4502, and the round table 48 slides in the inclined slide groove 4701, thereby driving the inclined drive plate 47 and the swivel 46 to rotate, and the air port 4601 and the air flow hole 302 no longer overlap. The swivel 46 blocks dust from flowing in from the air flow hole 302, so it can further prevent dust from entering the interior of the casing 3 from the rolling bearing 7 on the partition 5, thereby improving the motor protection performance. During the downward movement of the blocking ring disc 45, the two pressure rings 2 49 are driven to move downward synchronously, and the oblique drive rod 53 acts on the side boss 52 to drive the side boss 52 to move toward the center of the heat dissipation shaft 31, so the pressure ring 2 49 moves synchronously toward the center of the heat dissipation shaft 31, and the spring 51 is stretched; when the blocking ring disc 45 moves to the lower position, the two pressure rings 2 49 respectively bring the inner side surfaces of the semicircular rings of the corresponding sealing gaskets 2 54 to contact the heat dissipation shaft 31, clamping the heat dissipation shaft 31, thereby avoiding damage to the heat dissipation shaft 31 and improving the protection of the motor; at the same time, the two pressure rings 2 49 respectively bring the lower planes of the corresponding sealing gaskets 2 54 to contact the shaft sealing retaining ring on the bottom plate 2, avoiding dust from flowing in through the rolling bearing 7 on the bottom plate 2, so when the impeller 32 is no longer in use or the motor is transported, the heat dissipation shaft 31 is avoided from shaking and being damaged due to motor vibration.

[0065] When moving the motor, in order to avoid damage to the main shaft 6 and the rolling bearing 7 due to vibration or shaking of the motor, and at the same time to prevent dust from entering the inside of the casing 3 from the rolling bearing 7 on the top plate 4 due to the motor being unused for a long time, continue to pull the ears 13 of the two buckle assemblies, using the same principle as above, so that the wedge block 27 is stuck on the upper surface of the second clamping plate 2902. During this process, the upper end of the seesaw 38 slides in the vertical section of the slide groove 3701, and the center of the seesaw 38 no longer rotates around the support seat 39, so the sliding pressure rod 40 no longer moves downward, and the cross slide 18 moves upward along the slide 19. When the lifting plate 20 begins to touch the pressure ring 21, all the rocker rods 22 rotate at the same time, the torsion spring 24 twists and accumulates force, the rocker rod 22 is separated from the baffle 25, and the lifting plate 20 drives the pressure ring 21 to translate, and the pressure ring 21 drives the sealing gasket 26 to translate synchronously. The inner annular surfaces of the two sealing gaskets 26 contact the main shaft 6 to clamp the main shaft 6, so as to avoid damage to the main shaft 6 and the rolling bearing 7 due to the shaking of the motor during transportation; at the same time, the upper planes of the two sealing gaskets 26 contact the shaft seal retaining ring under the rolling bearing 7 to prevent dust from entering the casing 3 through the rolling bearing 7 on the top plate 4.

[0066] When the motor needs to return to heat dissipation operation, that is, when the pull slide bar 12 is restored to the lower position, the pull ear 13 is rotated to cause the pull ear 13 to twist the pull slide bar 12 and the card cavity 16. At the same time, the spring 15 twists and accumulates force, and the swivel seat 17 is disengaged from the card plate 2901 or the card plate 2901. The spring 15 provides elastic force to move the pull slide bar 12 downward to the lower position. After releasing the pull ear 13, the spring 15 releases the torsional force, so that the wedge block 27 is realigned with the card plate 1 2901 and the card plate 2 2902.

[0067] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A high-protection low-speed direct-drive reluctance motor, comprising a base (1), wherein a bottom plate (2), a housing (3) and a top plate (4) are arranged above the base (1) in order from bottom to top, a partition plate (5) is arranged inside the housing (3), a main shaft (6) is arranged at the central axis of the housing (3), rolling bearings (7) are arranged between the main shaft (6) and the top plate (4) and between the main shaft (6) and the partition plate (5), a rotor (8) is arranged above the main shaft (6) and inside the housing (3), a partition layer (9) is arranged on the inner side wall of the housing (3), and a stator (10) matching with the rotor (8) is arranged on the inner ring of the partition layer (9), characterized in that: The top plate (4) is symmetrically provided with two through holes (401), and two groups of buckle assemblies are provided on the top plate (4), the buckle assemblies comprising boss seats (11), and the boss seats (11) of the two groups of buckle assemblies are respectively provided at the two through holes (401) of the top plate (4). A pull rod (12) is slidably provided at the center of the boss seat (11), a pull ear (13) is provided at the upper end of the pull rod (12), a ring platform (14) is provided at the middle of the pull rod (12), a spring (15) is sleeved on the outside of the pull rod (12), two ends of the spring (15) are respectively connected to the boss seat (11) and the ring platform (14), a clamping cavity (16) and a rotating seat (17) are provided at the lower end of the pull rod (12), a horizontal slide plate (18) is rotatably provided on the rotating seat (17), and one end of the horizontal slide plate (18) is slidably provided on a slide platform (19), the slide platform (19) is vertically provided below the top plate (4), and a lifting plate (20) is provided at the other end of the horizontal slide plate (18); A pressure ring (21) is provided between the lifting plates (20) and the top plate (4) of the two groups of buckle assemblies, and two swing rods (22) are provided on both sides of the pressure ring (21). The lower end of the swing rod (22) is hinged to the pressure ring (21), and the upper end of the swing rod (22) is hinged to a swivel seat (23). The swivel seat (23) is fixedly arranged below the top plate (4). A torsion spring (24) is sleeved on the rotating shaft of the swivel seat (23), and the two ends of the torsion spring (24) are respectively connected to the swing rod (22) and the swivel seat (23). A stopper (25) for blocking the swing rod (22) from rotating is provided on the side surface of the swivel seat (23); The pressure ring 1 (21) is in the shape of a semicircular ring. The inner side surface and the upper surface of the pressure ring 1 (21) are provided with a sealing gasket 1 (26). The radius of the semicircular ring of the sealing gasket 1 (26) is equal to the radius of the main shaft (6).

2. A high-protection low-speed direct-drive reluctance motor according to claim 1, characterized in that: Insertion wedges (27) are symmetrically slidably provided on both sides of the card cavity (16), and a second spring (28) is connected between the two insertion wedges (27) and located inside the card cavity (16).

3. A high-protection low-speed direct-drive reluctance motor according to claim 2, characterized in that: A double clamping platform (29) is provided below the top plate (4) and on the side of the inserting wedge block (27). A clamping plate 1 (2901) and a clamping plate 2 (2902) are provided in sequence from bottom to top on the side of the double clamping platform (29) facing the inserting wedge block (27).

4. The high-protection low-speed direct-drive reluctance motor according to claim 1, characterized in that: The outer side surface of the housing (3) is evenly provided with a plurality of heat sinks (301); air flow holes (302) for ventilation are provided on the side surface of the housing (3) and between two heat sinks (301); the air flow holes (302) are located below the partition (5); and guide plates (30) for air flow guidance are provided on the heat sinks (301); and a plurality of ventilation holes (201) for ventilation are evenly provided on the bottom plate (2).

5. A high-protection low-speed direct-drive reluctance motor according to claim 4, characterized in that: A heat dissipation shaft (31) is provided at the center of the bottom plate (2); a rolling bearing (7) is provided between the heat dissipation shaft (31) and the bottom plate (2); the outer ring of the rolling bearing (7) is connected to the bottom plate (2); the inner ring of the rolling bearing (7) is connected to the heat dissipation shaft (31); an impeller (32) for heat dissipation is provided on the heat dissipation shaft (31); an inner cavity (3101) is provided in the middle of the heat dissipation shaft (31); and a roller (32) connected to the inner cavity (3101) is provided above the heat dissipation shaft (31). A through spline plate (3102) is provided, a smooth column (33) is slidably provided in the inner cavity (3101), a spring (34) is connected between the bottom of the inner cavity (3101) and the smooth column (33), a spline platform (35) having the same shape as the spline plate (3102) is provided on the upper part of the smooth column (33), and a limit plate (36) is provided on the spline platform (35); and a spline groove (601) for clamping the spline platform (35) is provided at the bottom of the main shaft (6).

6. A high-protection low-speed direct-drive reluctance motor according to claim 5, characterized in that: An L-shaped slide plate (37) is connected to the lower surface of the horizontal slide plate (18), a slide groove (3701) is provided in the L-shaped slide plate (37), and the slide groove (3701) is composed of a horizontal section and a vertical section. The lower end of the slide table (19) is connected to a support seat (39), and a seesaw (38) is rotatably provided at the lower end of the support seat (39). A seesaw bar (3801) is provided at the upper end of the seesaw (38), and the seesaw bar (3801) and the slide groove (3701) form a sliding fit. A seesaw groove (3802) is provided at the lower end of the seesaw (38). Two sliding rods (40) are slidably provided on the partition (5), and the sliding rods (40) pass through the partition (9). A slide table is provided at the upper end of the sliding rod (40), and the slide table of the sliding rod (40) forms a sliding fit with the corresponding seesaw groove (3802), and the lower end of the sliding rod (40) passes through the partition (5); A pressure wedge block (41) is connected to the sliding rod (40) and is located below the partition (5). A double inclined plate (42) is provided on the side of the pressure wedge block (41). The double inclined plate (42) is slidably arranged on a slide seat (43). The slide seat (43) is fixedly arranged on the lower surface of the partition (5). A spring four (44) is connected between the double inclined plate (42) and the slide seat (43). One end of the double inclined plate (42) close to the pressure wedge block (41) is an inclined surface one (4201) that cooperates with the pressure wedge block (41), and one side of the double inclined plate (42) close to the limit plate (36) is an inclined surface two (4202) that drives the limit plate (36) to move.

7. A high-protection low-speed direct-drive reluctance motor according to claim 6, characterized in that: The bottom of the sliding pressure rod (40) is provided with a blocking ring disk (45), a plurality of through slots (4501) for ventilation are evenly arranged on the blocking ring disk (45), and a blocking platform (4502) for inserting into the ventilation opening (201) is provided on the lower surface of the blocking ring disk (45).

8. The high-protection low-speed direct-drive reluctance motor according to claim 7, characterized in that: A rotating ring (46) is rotatably provided on the inner side surface of the housing (3) and located at the air flow hole (302); an air port (4601) that coincides with the air flow hole (302) is provided on the rotating ring (46); two inclined drive plates (47) are provided below the rotating ring (46); an inclined slide groove (4701) is provided on the inclined drive plates (47); and a round table (48) that forms a sliding fit with the two inclined slide grooves (4701) is provided on the two sliding pressure rods (40), respectively.

9. A high-protection low-speed direct-drive reluctance motor according to claim 8, characterized in that: Two pressure rings (49) are arranged in the inner ring of the blocking ring disk (45), and sliding shafts (50) are arranged at both ends of the pressure ring (49). The sliding shaft (50) is slidably arranged on the blocking ring disk (45), and a spring (51) is sleeved on the sliding shaft (50). The two ends of the spring (51) are respectively connected to the pressure ring (49) and the blocking ring disk (45). Side bosses (52) are also arranged at both ends of the pressure ring (49). The upper surface of the bottom plate (2) is provided with an inclined driving rod (53) in contact with the side boss (52). The inner side surface and the lower surface of the circular ring of the pressure ring (49) are jointly provided with a sealing gasket (54), and the radius of the semicircular ring of the sealing gasket (54) is equal to the radius of the main shaft (6).

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