Vertical permanent magnet motor driven vertical mill speed reducer assembling structure

Abstract

The utility model discloses a vertical permanent magnet motor driven vertical mill speed reducer assembling structure which comprises a speed reducer shell, a vertical permanent magnet motor and a bearing bush seat, the speed reducer shell is composed of an upper shell body and a lower shell body, and a vertical welding strip plate is welded on the periphery of the upper shell body. Semicircular neutral gears matched with a vertical permanent magnet motor body are arranged on the left side face and the right side face of the lower shell respectively, speed reducer screw joint battens are vertically welded to the two sides of the semicircular neutral gears respectively, the vertical permanent magnet motor body is embedded into the semicircular neutral gears and fixedly connected with the speed reducer screw joint battens, and a bearing bush seat is located above the vertical permanent magnet motor. The vertical permanent magnet motor is fixedly connected with the vertical welding strip plate; the lower shell is screwed and fixed with a ground foundation through a screw hole; the working condition requirements of high-strength vertical mill operation can be fully met, the permanent magnet synchronous motor with the small gear is not required to be specially designed and only needs to be consigned to a working site to be in threaded connection with a vertical mill speed reducer shell, and when the outer diameter of the large gear is too large and the transportation width is too wide, the large gear can be assembled on site.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent magnet synchronous motor and vertical mill reducer assembly, in particular to a vertical permanent magnet motor driven vertical mill reducer assembly structure. Background Art

[0002] With the continuous improvement of environmental protection requirements, the demand for grinding slag, water slag and steel slag has increased accordingly. As an important operating equipment for grinding conditions, the vertical mill adapts to the supporting construction needs of large-scale dry cement production lines and slag grinding lines; Chinese invention patent application No. 202410134305.5 discloses a drive system; the drive system includes a permanent magnet motor, a torsion shaft, a pinion and a support seat, the permanent magnet motor is arranged on the side of the box, the support seat is correspondingly installed on the permanent magnet motor, the pinion is supported on the support seat by a bearing, one end of the torsion shaft is linked to the motor shaft of the permanent magnet motor, and the other end of the torsion shaft is linked to the pinion; the invention also discloses a The transmission system includes a large gear, a large gear seat, an internal gear sleeve, a drum-shaped gear shaft, a sun gear, a planetary gear, an internal gear ring, a planetary gear shaft and a planetary carrier. The large gear is meshed with the small gear, the large gear seat is respectively connected to the large gear and the internal gear sleeve for transmission, one end of the drum-shaped gear shaft is internally meshed with the internal gear sleeve, the other end of the drum-shaped gear shaft is internally meshed with the sun gear, the planetary gears are respectively meshed with the sun gear and the internal gear ring, the internal gear ring is installed on the housing, the planetary gears are arranged on the planetary gear shaft through bearing support, the planetary gear shaft is arranged on the planetary carrier, and the planetary carrier is linked to the output flange.

[0003] The component structure layout of the drive system and the transmission system is relatively reasonable, but the permanent magnet motor in the drive system uses a high-speed motor. The high-speed motor has a fast speed and low torque, so it needs to be changed to a low speed by a reducer; there are too many reduction components in the transmission system, especially the large gears in the box, the gear shaft and the large bearings account for a particularly large proportion of the cost, and the cost increases, and the total cost of the vertical mill reducer cannot be reduced; there are also many other parts in the transmission system, such as planetary gears, which increase wear and tear and increase maintenance. These reduction links are all problems that need to be further overcome; the speed of the vertical mill reducer is only a few dozen revolutions per minute, and the speed is relatively Low, the low-speed, high-torque permanent magnet synchronous motor currently developed and produced in China, with a speed of about 180 revolutions per minute and equipped with a frequency conversion speed regulator, is also suitable for the large gear of the direct-drive vertical mill reducer grinding disc. It is advocated that the use of permanent magnet direct-drive synchronous motors to drive vertical mill reducers is the future development direction of industrial development; in addition, the traditional vertical mill reducer is used to remove the use of high-speed couplings, right-angle reducers, low-speed couplings, and internal planetary gears, bevel gears, bearings and other speed change mechanism components, and only retains the thrust bearing, locating shaft, locating bearing housing, and only the large gear is inlaid on the grinding disc. This kind of industrial transformation project is extremely important. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a vertical permanent magnet motor driven vertical mill reducer assembly structure, which can fully meet the working conditions of high-intensity vertical mill operations. The permanent magnet synchronous motor with a small gear does not need to be specially designed, and only needs to be shipped to the work site and screwed on the vertical mill reducer housing. When the outer diameter of the large gear is too large and the transportation is too wide, it can also be assembled on site, thereby making the equipment storage, transportation and maintenance and other related operations relatively simple and easy, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vertical permanent magnet motor driven vertical mill reducer assembly structure, comprising a reducer housing, a vertical permanent magnet motor and a bearing shoe seat, the reducer housing is composed of an upper housing and a lower housing, the outer periphery of the upper housing is welded with vertical welded strips, the left and right sides of the lower housing are respectively provided with semicircular gaps matching the vertical permanent magnet motor body, the two sides of the semicircular gap are respectively vertically welded with reducer screw-connected strips, the body of the vertical permanent magnet motor is embedded in the semicircular gap and is fixedly connected to the reducer screw-connected strips, the bearing shoe seat is located above the vertical permanent magnet motor, the vertical permanent magnet motor is fixedly connected to the vertical welded strips, and the lower housing is screwed and fixed to the earth foundation through screw holes.

[0006] Furthermore, it also includes a grinding disc, the outer circumference of which is provided with a large gear ring, the large gear ring is meshed with a small gear, and the output shaft of the vertical permanent magnet motor passes through the bearing shoe seat and is connected with the small gear.

[0007] Furthermore, a thrust bearing, a positioning shaft and a bearing are arranged in the upper shell. The upper shell contacts the grinding disc through the thrust bearing. The lower end of the positioning shaft is inserted into the bearing, and the upper end of the positioning shaft is connected to the grinding disc.

[0008] Furthermore, the bearing shoe seat is welded and fixed to the upper end cover of the vertical permanent magnet motor, a shoe seat screw-connecting strip is welded on the bearing shoe seat, the shoe seat screw-connecting strip is fixed to the vertical welding strip by bolts, a motor screw-connecting strip is welded on the vertical permanent magnet motor, and the motor screw-connecting strip is fixed to the reducer screw-connecting strip by bolts.

[0009] Furthermore, the outer periphery of the upper shell is a cylindrical structure, the lower shell is welded with steel plates into a structure with a semicircular gap, a circular flange is welded on the top of the lower shell, and holes are punched on the flange to be screwed and fixed to the upper shell.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. It can fully meet the working conditions of high-intensity vertical mill operations. The permanent magnet synchronous motor with small gear does not need special design. It only needs to be shipped to the work site and screwed on the vertical mill reducer housing. When the outer diameter of the large gear is too large and the transportation is too wide, it can also be assembled on site, making the equipment storage, transportation and maintenance and other related operations relatively simple and easy.

[0012] 2. The bottom of the lower shell and the bottom of the vertical permanent magnet motor shell are screwed to the earth foundation, jointly bearing the weight of the vertical mill reducer box. The large area has good support and shock absorption effects. It is easy and convenient to adjust the gear gap, assemble the motor and repair the motor. The structural layout is novel. The two sets of vertical permanent magnet motors are located in the semicircular neutral position with a compact structure. The two sets of vertical permanent magnet motors drive the grinding disc to rotate at the same time, and the output power is doubled. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the top view of the lower shell structure of the utility model;

[0015] Figure 3 It is a front view structural schematic diagram of the vertical permanent magnet motor of the utility model.

[0016] In the figure: 1 screw hole, 2 lower shell, 3 motor screw-on strip, 4 vertical permanent magnet motor, 5 bearing bushing, 6 small gear, 7 large gear ring, 8 thrust bushing, 9 bearing, 10 positioning shaft, 11 grinding disc, 12 upper shell, 13 bushing seat screw-on strip, 14 reducer screw-on strip, 15 semicircular neutral, 16 flange, 17 vertical welding strip. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] See also Figure 1-3The utility model provides a technical solution: a vertical permanent magnet motor driven vertical mill reducer assembly structure, including a reducer housing, a vertical permanent magnet motor 4 and a bearing shoe seat 5, the reducer housing is composed of an upper housing 12 and a lower housing 2, the outer periphery of the upper housing 12 is welded with a vertical welding strip plate 17, the left and right sides of the lower housing 2 are respectively provided with a semicircular gap 15 matching the body of the vertical permanent magnet motor 4, the two sides of the semicircular gap 15 are respectively vertically welded with a reducer screw-connected strip plate 14, the body of the vertical permanent magnet motor 4 is embedded in the semicircular gap 15 and is compatible with the reducer The speed machine is fixedly connected with the screw-connected strip plate 14, the bearing shoe seat 5 is located above the vertical permanent magnet motor 4, the vertical permanent magnet motor 4 is fixedly connected with the vertical welding strip plate 17, and the lower shell 2 is screwed and fixed to the earth foundation through the screw hole 1; the bottom of the lower shell 2 and the bottom of the shell of the vertical permanent magnet motor 4 are screwed to the earth foundation, and jointly bear the weight of the box body of the vertical mill reducer, with a large area and good supporting effect and shock absorption effect. It is easy and convenient to adjust the gear clearance, assemble the motor and repair the motor. Two sets of vertical permanent magnet motors 4 drive the grinding disc 11 to rotate at the same time, and the output power is doubled.

[0019] A large gear ring 7 is arranged on the outer circumference of the grinding disc 11 , and a small gear 6 is meshed with the large gear ring 7 . The output shaft of the vertical permanent magnet motor 4 passes through the bearing shoe seat 5 and is connected with the small gear 6 .

[0020] A cover is arranged around the large gear ring 7, and the cover shell is screwed on the circumference of the reducer housing. There are oil filling and oil circuit collection parts inside the cover shell. The upper housing 12 has an oil cavity that can accommodate lubricating oil. The oil temperature in the oil cavity is controlled by an external oil circuit cooling circulation system; the large gear ring 7 at the top of the upper housing 12 controls the lubrication and cooling of large and small gears through the oil filling and oil circuit collection system.

[0021] The cover can be removed, and then the connecting bolts on the strip between the permanent magnet synchronous motor and the reducer housing can be removed, and the motor can be moved out separately for maintenance and replacement.

[0022] The upper shell 12 is provided with a thrust bearing 8, a positioning shaft 10 and a bearing 9. The upper shell 12 is in contact with the grinding disc 11 through the thrust bearing 8. The lower end of the positioning shaft 10 is inserted into the bearing 9, and the upper end of the positioning shaft 10 is connected to the grinding disc 11.

[0023] The bearing shoe seat 5 is welded and fixed to the upper end cover of the vertical permanent magnet motor 4, and a shoe seat screw-on strip 13 is welded to the bearing shoe seat 5, and the shoe seat screw-on strip 13 is fixed to the vertical welding strip 17 by bolts. A motor screw-on strip 3 is welded to the vertical permanent magnet motor 4, and the motor screw-on strip 3 is fixed to the reducer screw-on strip 14 by bolts. The reducer screw-on strip 14 and the vertical welding strip 17 have threaded holes for connection, and the motor screw-on strip 3 and the shoe seat screw-on strip 13 are processed with vertically adjustable screw through holes for adjusting the position of the bolts, and are connected and fixed with the threaded holes.

[0024] The outer periphery of the upper shell 12 is a cylindrical structure, and the lower shell 2 is welded with steel plates to form a structure with a semicircular gap 15. A circular flange 16 is welded to the top of the lower shell 2, and a through hole is punched on the flange 16 to be screwed and fixed to the upper shell 12.

[0025] The lower shell 2 is installed on the vertical permanent magnet motor 4. The large gear ring 7 is designed and completed according to the order of the factory that produces the large gear ring 7. It is screwed on the grinding disc 11. The outer large gear ring or the inner large gear ring is selected according to the customer's requirements. When modifying the existing vertical mill reducer, the existing reducer grinding disc 11 is used to punch holes and screw the outer large gear disc, and the existing reducer grinding disc 11 is used to punch holes and screw the inner large gear disc. The original vertical mill reducer housing, positioning shaft 10, bearing 9, thrust bearing 8, and support disc are still used; the large gear ring 7 embedded on the outer periphery of the grinding disc 11 is geared and driven in combination with the pinion 6.

[0026] Its working process is to utilize two sets of circumferential pinion gears 6 to work together to drive the output large gear ring 7 to operate synchronously, thereby completing the overall power output of the drive system. Due to the mode in which the pinion gear 6 drives the output grinding disc 11 to rotate, a stable and relatively large power output is achieved, ensuring that the power output can meet the corresponding high-intensity vertical mill operation requirements; thus, without the need for large-scale component design, the output power and operating efficiency of the vertical mill reducer can be guaranteed, the vertical permanent magnet motor 4 and the reducer are combined in a relatively compact structure, and the equipment lifting, storage, transportation, installation, layout, inspection and maintenance are simple and easy.

[0027] It should be noted that when the large gear ring 7 embedded on the outer periphery of the grinding disc 11 is an external gear, the pinion 6 should be driven centripetally; when the large gear ring 7 embedded on the outer periphery of the grinding disc 11 is an internal gear structure, the pinion 6 should be driven circumferentially; customers need to specify in advance when placing an order.

[0028] The basic principles, main features and advantages of the present invention are shown and described above. Without departing from the spirit and scope of the present invention, the present invention may also be subject to various changes and improvements, which are all within the scope of the present invention to be protected.

Claims

1. A vertical permanent magnet motor driven vertical mill reducer assembly structure, comprising a reducer housing, a vertical permanent magnet motor (4) and a bearing shoe seat (5), characterized in that: The reducer housing is composed of an upper housing (12) and a lower housing (2); a vertical welded strip plate (17) is welded to the outer periphery of the upper housing (12); semicircular idlers (15) matching the body of the vertical permanent magnet motor (4) are respectively arranged on the left and right sides of the lower housing (2); reducer screw-connected strip plates (14) are respectively welded vertically on both sides of the semicircular idlers (15); the body of the vertical permanent magnet motor (4) is embedded in the semicircular idlers (15) and fixedly connected to the reducer screw-connected strip plates (14); the bearing shoe seat (5) is located above the vertical permanent magnet motor (4); the vertical permanent magnet motor (4) is fixedly connected to the vertical welded strip plates (17); and the lower housing (2) is screw-connected and fixed to the earth foundation through screw holes (1).

2. According to claim 1, a vertical permanent magnet motor driven vertical mill reducer assembly structure is characterized in that: It also comprises a grinding disc (11), the outer circumference of which is provided with a large gear ring (7), the large gear ring (7) is meshed with a small gear (6), and the output shaft of the vertical permanent magnet motor (4) passes through the bearing shoe seat (5) and is connected to the small gear (6).

3. The vertical permanent magnet motor driven vertical mill reducer assembly structure according to claim 2 is characterized in that: A thrust bearing (8), a positioning shaft (10) and a bearing (9) are arranged in the upper shell (12); the upper shell (12) contacts the grinding disc (11) via the thrust bearing (8); the lower end of the positioning shaft (10) is inserted into the bearing (9); and the upper end of the positioning shaft (10) is connected to the grinding disc (11).

4. The vertical permanent magnet motor driven vertical mill reducer assembly structure according to claim 1, characterized in that: The bearing shoe seat (5) is welded and fixed to the upper end cover of the vertical permanent magnet motor (4); a shoe seat screw-connecting strip plate (13) is welded to the bearing shoe seat (5); the shoe seat screw-connecting strip plate (13) is fixed to the vertical welding strip plate (17) by bolts; a motor screw-connecting strip plate (3) is welded to the vertical permanent magnet motor (4); the motor screw-connecting strip plate (3) is fixed to the reducer screw-connecting strip plate (14) by bolts.

5. The vertical permanent magnet motor driven vertical mill reducer assembly structure according to claim 1, characterized in that: The outer periphery of the upper shell (12) is a cylindrical structure. The lower shell (2) is welded with steel plates to form a structure with a semicircular gap (15). A circular flange (16) is welded to the top of the lower shell (2). The flange (16) is punched with holes and is screwed and fixed to the upper shell (12).

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