CN110676969A - Vertical vibration motor - Google Patents

Abstract

The invention belongs to the technical field of motors, and in particular relates to a vertical vibration motor. Aiming at the problem that the protection level of the existing vertical vibration motor is low due to the poor protection and sealing structure, the present invention adopts the following technical scheme: a vertical vibration motor, the vertical vibration motor comprises: a machine base; a stator iron with windings core; rotor; mounting end cover, which has a bearing chamber; cylindrical roller bearing, which is internally pressed against the mounting end cover; oil seal, which is placed on the cylindrical roller bearing The non-installation side; the wave spring washer, which is located on the non-installation side of the oil seal; the elastic retaining ring for the hole, which is provided on the end cover of the installation end and is located on the non-installation side of the wave spring washer. The beneficial effect of the invention is that the wave spring washer can avoid rigid collision between the cylindrical roller bearing and the oil seal and the elastic retaining ring for the hole when they are loose.

Description

A vertical vibration motor

technical field

The invention belongs to the technical field of motors, and in particular relates to a vertical vibration motor.

Background technique

In the current vibration equipment, the use frequency of the horizontal vibration motor is relatively high, but in some application fields, the horizontal vibration motor cannot meet the use requirements, and the installation method cannot meet the requirements. To this end, vertical vibration motors have appeared.

The Chinese invention patent with the authorization announcement number CN106208509B discloses a double-flange vertical vibration motor fixed without bolts. , the diameter of the connecting end of the connecting flange is larger than the diameter of the other end, so that the motor can be pressed and fixed by the external equipment with the inner conical surface matched with the conical surface. Although this patented solution is convenient to fix and has good positioning accuracy, which is beneficial to improve product life and protection level, it is not suitable for occasions that need to be dismantled.

The existing vertical vibration motors fixed by flanges and bolts have deficiencies in one or more aspects such as sealing protection performance, parts processing, and complete machine assembly. For example, in the existing vertical vibration motor with bolt flange, a sealing method for the bearing is: a bearing chamber is opened in the motor end cover, the bearing is directly pressed into the bearing chamber of the end cover, a sealing ring is placed on the outside of the motor, and a hole is used for The retaining ring is stuck to prevent the grease in the bearing from entering the interior of the motor. Although this kind of sealing structure can play a role in preventing dust to a certain extent, the effect is often not ideal. With the extension of running time, the external dust will still enter the inside of the motor, which will affect the reliability and safety of the vibration motor. , and reduce the service life of the vibration motor.

SUMMARY OF THE INVENTION

Aiming at the problem that the protection level of the existing vertical vibration motor is low due to the poor protection and sealing structure, the present invention provides a vertical vibration motor, which improves the sealing structure and enhances the protection performance. Further, processing and assembly are simplified.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a vertical vibration motor, the vertical vibration motor comprises:

A machine base, one end of the machine base is a mounting end and forms a flange mounting part, and the other end is a non-installing end, the machine base has a shaft hole, and the flange mounting part is provided with circumferentially evenly distributed axial mounting holes;

There is a stator core with windings, and the stator core with windings is internally pressed on the machine base;

a rotor, the rotor includes a rotor iron core and a rotating shaft;

an installation end cover, the installation end cover is assembled on the installation end of the machine base, and the installation end cover has a bearing chamber;

a tail end cover, the tail end cover is assembled on the non-installation end of the machine base;

Cylindrical roller bearing, the cylindrical roller bearing is internally pressed on the end cover of the mounting end;

an oil seal, which is placed on the non-installation side of the cylindrical roller bearing;

a wave spring washer, the wave spring washer is located on the non-installation side of the oil seal;

A snap ring for the hole, the snap ring for the hole is arranged on the end cover of the mounting end and is located on the non-mounting side of the wave spring washer;

a fixed eccentric assembly, the fixed eccentric assembly is assembled on the installation end of the rotating shaft;

The adjustable eccentric assembly is assembled on the non-installation end of the rotating shaft.

In the vertical vibration motor of the present invention, a wave spring washer is placed between the oil seal and the elastic retaining ring for the hole, and the wave spring washer can avoid the rigid collision between the cylindrical roller bearing and the oil seal and the elastic retaining ring for the hole when they are loosened, act as a buffer. The oil seal is preferably NILOS oil seal.

As an improvement, the rotating shaft is also provided with an inner ring and a shaft retaining ring, and the inner ring and the shaft retaining ring are located on the non-installation side of the cylindrical roller bearing.

As an improvement, the radial gap between the oil seal and the inner ring is not greater than 0.4mm.

As an improvement, as an improvement, a wiring room is also formed on the machine base, a wiring board is arranged in the wiring room, a lead-out hole is provided on the bottom wall of the wiring room, and the lead-out hole is provided with a winding stator core and Pinout from the terminal block. The lead wires are fixed with copper nuts.

As an improvement, the installation end cover is provided with a sealing groove, and an O-shaped sealing ring is installed in the sealing groove; a sealing groove is provided on the rotating shaft, and an O-shaped sealing ring is installed in the sealing groove; A box cover, a sealing groove is set on the box cover, and an O-shaped sealing ring is installed in the sealing groove; a protective cover is provided on the outer side of the tail end cover, a sealing groove is set on the tail end cover, and the sealing groove is Install the O-ring in the middle. Improve IP protection by setting O-rings.

As an improvement, a deep groove ball bearing is installed in the tail end cover, and both ends of the deep groove ball bearing are fixed by elastic retaining rings through the holes in the retaining ring groove installed in the tail end cover. Such a straight-through structure is more conducive to Disassembly and maintenance of deep groove ball bearings.

As an improvement, the mounting end of the mounting end cover is provided with a dismounting hole, and the dismounting hole is a threaded hole and is provided with a hexagon socket flat end set screw. Set the hexagon socket head flat end set screw to prevent the bearing grease from overflowing.

As an improvement, a groove is machined on the mounting end cover of the rotating shaft out of the shaft, and a V-shaped sealing ring is installed in the groove. The surface roughness of the opposite side of the V-shaped sealing ring is not greater than 0.8, and grease is filled between the mounting end cover and the contact surface of the V-shaped sealing ring. Since the rotor moves in series, the grooves on the rotor should be designed to ensure that the V-shaped sealing ring and the end cover can be in contact with each other even when the maximum series moves. Ensure the surface roughness and apply a small amount of grease to reduce the friction between the V-ring and the contact surface of the end cover when the rotor rotates.

As an improvement, the fixed eccentric assembly includes a fixed eccentric block and a sheet-shaped eccentric block fixed by screws and a locking nut, and the fixed eccentric block is positioned in the flat keyway of the rotating shaft through the screw to prevent the fixed eccentric block from being loose due to loosening. Radial movement occurs during operation.

As an improvement, a retaining ring groove is processed on the installation end of the rotating shaft, and a shaft elastic retaining ring is installed in the retaining ring groove to prevent the fixed eccentric block from loosening and moving to the outside, causing potential safety hazards.

As an improvement, the non-installation end of the rotating shaft is milled with a keyway that is directly connected to the end surface, and the installation end of the keyway is provided with a circular scale indicator plate, and the circular scale indicator plate forms a lug, and the lug is positioned in the keyway. Among them, the non-installation side of the circular scale indicator is provided with an elastic retaining ring for a shaft. The keyway and the end face are directly connected, and the circular scale indicator is easy to assemble; the circular scale indicator is positioned by the convex piece and the keyway to prevent the circular scale indicator from generating circumferential displacement; the shaft is provided with an elastic retaining ring to prevent axial displacement.

As an improvement, the adjustable eccentric assembly includes an adjustable eccentric assembly including an adjustable eccentric block and a sheet-shaped eccentric block fixedly connected by screws and lock nuts, and an indication boss is processed on the adjustable eccentric block, and the indication The boss points to the scale on the circular scale indicator. By setting the test boss and the circular scale indicator, the vibration force on the non-flange side of the vertical vibration motor can be easily adjusted, and the different vibration forces generated by adjusting the angles of the upper and lower ends of the vertical vibration motor directly affect the Various screening effects of vibrating screen.

As an improvement, the adjustable eccentric block is provided with a fastening hole, and the inner end of the fastening hole is formed with a chip removal groove.

The beneficial effect of the vertical vibration motor of the present invention is that a wave spring washer is placed between the oil seal and the elastic retaining ring for the hole, and the wave spring washer can prevent the cylindrical roller bearing and the oil seal from being loose and between the elastic retaining ring for the hole and the hole. Produces a rigid collision and acts as a buffer.

Description of drawings

1 to 3 are schematic structural diagrams of the vertical vibration motor according to the first embodiment of the present invention.

4 is a cross-sectional view of the vertical vibration motor according to the first embodiment of the present invention.

FIG. 5 is a schematic structural diagram of the vertical vibration motor according to the first embodiment of the present invention after the protective cover is hidden.

FIG. 6 is a schematic structural diagram of the base of the vertical vibration motor according to the first embodiment of the present invention.

FIG. 7 is a schematic structural diagram of the installation end cover of the vertical vibration motor according to the first embodiment of the present invention.

FIG. 8 is a schematic structural diagram of the oil seal of the vertical vibration motor according to the first embodiment of the present invention.

9 is a schematic structural diagram of the wave spring washer of the vertical vibration motor according to the first embodiment of the present invention.

FIG. 10 is a schematic structural diagram of the fixed eccentric assembly of the vertical vibration motor according to the first embodiment of the present invention.

11 is a schematic structural diagram of an adjustable eccentric assembly of a vertical vibration motor according to Embodiment 1 of the present invention.

12 is a schematic structural diagram of a circular scale indicator plate of a vertical vibration motor according to Embodiment 1 of the present invention.

In the figure, 1, the machine base, 11, the wiring room, 12, the lead-out hole, 13, the box cover;

2. There is a winding stator core;

3. Rotor;

4. Mounting end components, 41, Mounting end cover, 411, Removal hole, 42, Cylindrical roller bearing, 43, Oil seal, 44, Wave spring washer, 45, Retaining ring for hole, 46, Inner ring, 47, Retaining ring for shaft, 48, V-shaped sealing ring;

5. Fixed eccentric assembly, 51, fixed eccentric block, 52, sheet eccentric block;

6. Tail assembly, 61, Tail cover, 62, Protective cover, 63, Circular scale indicator, 64, Deep groove ball bearing;

7. Adjustable eccentric assembly, 71, adjustable eccentric block, 711, chip flute;

8. Terminal board;

9. Cable connector.

Detailed ways

The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention, but the following embodiments are only the preferred embodiments of the present invention, not all. Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work all belong to the protection scope of the present invention.

1 to 12, the present invention adopts the following technical solutions: a vertical vibration motor, the vertical vibration motor includes:

A machine base, one end of the machine base is a mounting end and forms a flange mounting part, and the other end is a non-installing end, the machine base has a shaft hole, and the flange mounting part is provided with circumferentially evenly distributed axial mounting holes;

There is a stator core with windings, and the stator core with windings is internally pressed on the machine base;

a rotor, the rotor includes a rotor iron core and a rotating shaft;

an installation end cover, the installation end cover is assembled on the installation end of the machine base, and the installation end cover has a bearing chamber;

a tail end cover, the tail end cover is assembled on the non-installation end of the machine base;

Cylindrical roller bearing, the cylindrical roller bearing is internally pressed on the end cover of the mounting end;

an oil seal, which is placed on the non-installation side of the cylindrical roller bearing;

a wave spring washer, the wave spring washer is located on the non-installation side of the oil seal;

A snap ring for the hole, the snap ring for the hole is arranged on the end cover of the mounting end and is located on the non-mounting side of the wave spring washer;

a fixed eccentric assembly, the fixed eccentric assembly is assembled on the installation end of the rotating shaft;

The adjustable eccentric assembly is assembled on the non-installation end of the rotating shaft.

In the vertical vibration motor of the present invention, a wave spring washer is placed between the oil seal and the elastic retaining ring for the hole, and the wave spring washer can avoid the rigid collision between the cylindrical roller bearing and the oil seal and the elastic retaining ring for the hole when they are loosened, act as a buffer.

Example 1

Referring to FIG. 1 to FIG. 12 , a vertical vibration motor according to Embodiment 1 of the present invention, the vertical vibration motor includes:

Base 1, one end of the base 1 is a mounting end and forms a flange mounting portion, and the other end is a non-mounting end, the base 1 has a shaft hole, and the flange mounting portion is provided with circumferentially evenly distributed axial mounting hole;

There is a winding stator core 2, and the winding stator core 2 is internally pressed on the machine base 1;

The rotor 3, the rotor 3 includes the rotor 3 iron core and the rotating shaft;

The installation end cover 41 is assembled on the installation end of the machine base 1, and the installation end cover 41 has a bearing chamber;

A tail end cover 61, the tail end cover 61 is assembled on the non-installation end of the base 1;

Cylindrical roller bearing 42, the cylindrical roller bearing 42 is internally pressed against the mounting end cover 41;

an oil seal 43, the oil seal 43 is placed on the non-installation end of the cylindrical roller bearing 42;

a wave spring washer 44, the wave spring washer 44 is located on the non-installation side of the oil seal 43;

The elastic retaining ring 45 for the hole is provided on the mounting end cover 41 and is located on the non-mounting side of the wave spring washer 44;

Fixing the eccentric assembly 5, the fixed eccentric assembly 5 is assembled on the installation end of the rotating shaft;

The adjustable eccentric assembly 7 is assembled on the non-installed end of the rotating shaft.

As an improvement, the rotating shaft is further provided with an inner ring 46 and a shaft retaining ring 47 , and the inner ring 46 and the shaft retaining ring 47 are located on the non-installation side of the cylindrical roller bearing 42 .

As an improvement, as an improvement, the cross section of the oil seal 43 includes a horizontal part, a first vertical part, an inclined part and a second vertical part from the inside to the outside. The radial clearance between the horizontal portion of the oil seal 43 and the inner ring 46 is not greater than 0.4 mm. The oil seal 43 is preferably NILOS oil seal 43.

As an improvement, a wiring room 11 is also formed on the base 1, and a wiring board 8 is arranged in the wiring room 11. The bottom wall of the wiring room 11 is provided with a lead-out hole 12, and the lead-out hole 12 is provided with a winding connected to it. The lead wires of the stator core 2 and the terminal board 8. The lead wires are fixed with copper nuts.

As an improvement, a cable joint 9 is also screwed on the base 1 , and the cable joint 9 communicates with the connection room 11 .

As an improvement, the installation end cover 41 is provided with a sealing groove, and an O-shaped sealing ring is installed in the sealing groove; a sealing groove is provided on the rotating shaft, and an O-shaped sealing ring is installed in the sealing groove; A box cover 13 is provided, a sealing groove is formed on the box cover 13, and an O-ring seal is installed in the sealing groove; A sealing groove, an O-ring is installed in the sealing groove. Improve IP protection by setting O-rings.

As an improvement, a deep groove ball bearing 64 is installed in the tail end cover 61, and both ends of the deep groove ball bearing 64 are fixed with elastic retaining rings 45 through the holes in the retaining ring groove installed in the tail end end cover 61. The straight-through structure is more conducive to the disassembly and maintenance of the deep groove ball bearing 64 .

As an improvement, the mounting end of the mounting end cover 41 is provided with a dismounting hole 411 , and the dismounting hole 411 is a threaded hole and is provided with a hexagon socket flat end set screw. Set the hexagon socket head flat end set screw to prevent the bearing grease from overflowing. The dismounting holes 411 are a pair.

As an improvement, a groove is machined at the outgoing position of the mounting end cover 41 of the rotating shaft, and a V-shaped sealing ring 48 is installed in the groove. The surface roughness of the side of the end cover 41 in contact with the V-shaped sealing ring 48 is not greater than 0.8, and the contact surface between the end cover 41 and the V-shaped sealing ring 48 is filled with grease. Since the rotor 3 moves in series, when designing the grooves on the rotor 3, it is necessary to ensure that the V-shaped sealing ring 48 and the end cover can also be in contact with each other during the maximum series movement. Ensure the surface roughness and apply a small amount of grease to reduce the friction between the V-ring 48 and the contact surface of the end cover when the rotor 3 rotates.

As an improvement, the V-shaped sealing ring 48 includes a block portion and an inclined portion, and the thickness of the block portion is greater than that of the inclined portion.

As an improvement, the fixed eccentric assembly 5 includes a fixed eccentric block 51 and a sheet-shaped eccentric block 52 that are fixed by screws and locking nuts. The fixed eccentric block 51 is positioned in the flat keyway of the rotating shaft by screws to prevent the fixed eccentric block from being fixed. 51 Due to looseness, radial movement occurs during operation.

As an improvement, a retaining ring groove is machined at the installation end of the rotating shaft, and a shaft elastic retaining ring 47 is installed in the retaining ring groove to prevent the fixed eccentric block 51 from loosening and moving to the outside, causing potential safety hazards.

As an improvement, the non-installation end of the rotating shaft is milled with a keyway that is directly connected to the end face, and the installation end of the keyway is provided with a circular scale indicator 63, the circular scale indicator 63 forms a convex piece, and the convex piece is positioned In the keyway, the non-installation side of the circular scale indicator 63 is provided with a shaft retaining ring 47 . The keyway is directly connected to the end face, and the circular scale indicator 63 is easy to assemble; the circular scale indicator 63 is positioned through the convex piece and the keyway to prevent the circular scale indicator 63 from generating circumferential displacement; the shaft elastic retaining ring 47 is provided to prevent axial displacement .

As an improvement, the adjustable eccentric assembly 7 includes an adjustable eccentric assembly 7 including an adjustable eccentric block 71 and a sheet-shaped eccentric block 52 that are fixed by screws and locking nuts, and an indicator protrusion is processed on the adjustable eccentric block 71 The indicator boss points to the scale on the circular scale indicator plate 63 . By setting the test boss and the circular scale indicator, the vibration force on the non-flange side of the vertical vibration motor can be easily adjusted, and the different vibration forces generated by adjusting the angles of the upper and lower ends of the vertical vibration motor directly affect the Various screening effects of vibrating screen.

As an improvement, the adjustable eccentric block 71 is provided with a fastening hole, and a chip groove 711 is processed at the inner end of the fastening hole.

The beneficial effect of the vertical vibration motor of the first embodiment of the present invention is that a wave spring washer 44 is placed between the oil seal 43 and the elastic retaining ring 45 for the hole, and the wave spring washer 44 can prevent the cylindrical roller bearing 42 and the oil seal 43 from loosening. A rigid collision occurs with the spring retaining ring 45 for the hole, which plays a buffering role.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but not limited to the accompanying drawings and the above specific embodiments. content described in. Any modifications that do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.

Claims (10)

1. A vertical vibration motor, characterized in that: the vertical vibration motor comprises: A machine base (1), one end of the machine base (1) is a mounting end and forms a flange mounting part, and the other end is a non-installing end, the machine base (1) has a shaft hole, and the flange mounting part is provided with Circumferentially distributed axial mounting holes; a stator iron core (2) with windings, and the stator iron core (2) with windings is internally pressed on the machine base (1); a rotor (3), the rotor (3) includes a rotor iron core and a rotating shaft; a mounting end cover (41), the mounting end cover (41) is assembled on the mounting end of the machine base (1), and the mounting end cover (41) has a bearing chamber; a tail end cover (61), the tail end cover (61) is assembled on the non-installation end of the machine base (1); a cylindrical roller bearing (42), the cylindrical roller bearing (42) is internally pressed against the mounting end cover (41); an oil seal (43), the oil seal (43) is placed on the non-installation side of the cylindrical roller bearing (42); a wave spring washer (44), the wave spring washer (44) being located on the non-installation side of the oil seal (43); a retaining ring (45) for the hole, the retaining ring (45) for the hole is provided on the end cover (41) of the installation end and is located on the non-installation side of the wave spring washer (44); a fixed eccentric assembly (5), the fixed eccentric assembly (5) is assembled on the installation end of the rotating shaft; An adjustable eccentric assembly (7), the adjustable eccentric assembly (7) is assembled on the non-installation end of the rotating shaft. 2. A vertical vibration motor according to claim 1, characterized in that: the rotating shaft is further provided with an inner ring (46) and a shaft elastic retaining ring (47), the inner ring (46) and The elastic retaining ring (47) for the shaft is located on the non-installation side of the cylindrical roller bearing (42), and the radial clearance between the oil seal (43) and the inner ring (46) is not more than 0.4 mm. 3. A vertical vibration motor according to claim 1, characterized in that: a wiring room (11) is also formed on the base (1), and a wiring board (8) is arranged in the wiring room (11). ), a lead-out hole (12) is provided on the bottom wall of the wiring chamber (11), and the lead-out hole (12) is provided with a lead-out wire connected with the winding stator core (2) and the terminal board (8). 4. A vertical vibration motor according to claim 1, characterized in that: a sealing groove is provided on the mounting end cover (41), and an O-ring is installed in the sealing groove; a seal is provided on the rotating shaft An O-ring is installed in the sealing groove; a box cover (13) is provided on the wiring chamber (11), a sealing groove is provided on the box cover (13), and an O-type seal is installed in the sealing groove A protective cover is provided on the outer side of the tail end cover (61), a sealing groove is provided on the tail end cover (61), and an O-shaped sealing ring is installed in the sealing groove. 5 . The vertical vibration motor according to claim 1 , wherein a deep groove ball bearing ( 64 ) is installed in the tail end cover ( 61 ), and both ends of the deep groove ball bearing ( 64 ) are installed. 6 . The elastic retaining ring (45) is fixed through the hole installed in the retaining ring groove of the rear end cover (61). 6. A vertical vibration motor according to claim 1, characterized in that: a dismounting hole (411) is provided at the mounting end of the mounting end cover (41), and the dismounting hole (411) is a threaded hole and Equipped with hexagon socket head flat end set screws. 7. A vertical vibration motor according to claim 1, characterized in that: a groove is machined at the outgoing position of the mounting end cover (41) of the rotating shaft, and a V-shaped sealing ring (41) is installed in the groove. 48), the V-shaped sealing ring (48) is in contact with the installation end cover (41), and the surface roughness of the side of the installation end end cover (41) in contact with the V-shaped sealing ring (48) is not greater than 0.8, so Grease is filled between the contact surfaces of the mounting end cover (41) and the V-shaped sealing ring (48). 8 . The vertical vibration motor according to claim 1 , wherein the fixed eccentric assembly ( 5 ) comprises a fixed eccentric block ( 51 ) and a sheet-shaped eccentric block ( 52), the fixed eccentric block (51) is positioned in the flat keyway of the rotating shaft by means of screws; the installation end of the rotating shaft is machined with a retaining ring groove, and the retaining ring groove (47) for the shaft is installed in the retaining ring groove. 9. A vertical vibration motor according to claim 1, characterized in that: the non-installation end of the rotating shaft is milled with a keyway that is directly connected to the end face, and the installation end of the keyway is provided with a circular scale indicator (63 ), the circular scale indicator plate (63) forms a convex piece, the convex piece is positioned in the keyway, and the non-installation side of the circular scale indicator plate (63) is provided with a shaft elastic retaining ring (47). 10. A vertical vibration motor according to claim 1, characterized in that: the adjustable eccentric assembly (7) comprises an adjustable eccentric assembly (7) comprising an adjustable eccentric fixed by a screw and a locking nut A block (71) and a sheet-shaped eccentric block (52), an indication boss is processed on the adjustable eccentric block (71), and the indication boss points to the scale on the circular scale indicator plate (63).

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