CN201601553U

CN201601553U - Vertical motor

Info

Publication number: CN201601553U
Application number: CN2009202692868U
Authority: CN
Inventors: 孙凯
Original assignee: WUXI HEC ELECTRIC MACHINERY CO Ltd
Current assignee: WUXI HEC ELECTRIC MACHINERY CO Ltd
Priority date: 2009-11-10
Filing date: 2009-11-10
Publication date: 2010-10-06
Anticipated expiration: 2019-11-10

Abstract

A vertical motor comprises a flange base and a machine base mounted on the flange base. The outer wall of the machine base is connected with a cooler, the upper end and the lower end of the machine base are respectively provided with an upper end cap and a lower end cap, a rotating shaft is mounted inside the upper end cap and the lower end cap through a guide bearing disposed at the upper end of the rotating shaft and a thrust bearing disposed at the lower end of the rotating shaft, the guide bearing is connected with the upper end cap, the thrust bearing is connected with the lower end cap, a stator and a rotor are respectively connected onto the machine base and the rotating shaft, the guide bearing is connected with an oil outlet pipe, the length of the oil outlet pipe is smaller than the inner diameter of the machine base, the machine base is connected with the flange base and the lower end cap via a fastening bolt mounted below the machine base, the thrust bearing is connected with the lower end cap through a bearing sleeve, and the outer diameter of the bearing sleeve is smaller than the inner diameter of the stator. The vertical motor is convenient in disassembling and assembling, has reasonable arrangement of insulators and oil circuits, and is more stable and reliable in operation.

Description

A kind of vertical machine

Technical field

The utility model relates to motor, relates in particular to vertical machine.

Background technology

In metallurgical industry, often the steel of roll forming need be aligned becomes steel, the power of left and right directions play before must retraining steel plate with edger roll to enter the straightener mouth when aligning.Edger roll drives by vertical machine, and the normal operational relation of vertical machine is to the production of whole piece steel rolling line.

Existing vertical machine is generally low-voltage variable-frequency motor, the shaft extension end of rotating shaft up, non-shaft stretching end down, what its shaft extension end was installed is guide bearing, what non-shaft stretching end was installed is thrust bearing, promptly the weight of rotor is all born by thrust bearing.Owing to be variable-frequency motor, the thrust bearing of non-shaft stretching end will be done insulation and handle.Described guide bearing is a kind of unit rotating part radial load that is used for bearing specially, keeps the axial location that has mixed up, safeguards the special bearing of unit stable operation in the scope of bearing clearance.Described thrust bearing is a kind of special bearing that is used for bearing specially axial force, promptly with the bearing of axle parallel direction power.

Along with development of technology, the requirement of the vertical motor of user progressively improves, and there is following shortcoming in existing vertical machine:

(1) dismounting inconvenience: when vertical machine needs repair and maintenance, often need bearing is taken apart, cause the damage of bearing easily; Need move the installation site on basis during dismounting, moving installation site, back, basis needs to recalibrate, and causes the set-up time long, and installation effectiveness is low; Requirement to the used hanging device of dismounting is very high, and maintenance cost is higher.

(2) insulation is unreasonable: in order to prevent the damage of shaft current to motor bearings, the bearing holder (housing, cover) of vertical machine non-shaft stretching end thrust bearing is generally splitted structure, the distinguish place accompanies " one " font insulation system of being made up of multilayer imines film, because the rotor weight of motor all is added on this non-shaft stretching end thrust bearing, bearing holder (housing, cover) is stressed move after, conventional " one " font distinguish insulation system is easy to damage, and influences the operation stability and the reliability of motor.

(3) oil circuit is unreasonable: after refueling from oil inlet pipe, grease enters bearing inside at bearing chamber and is lubricated after the disc circumferencial direction is mixed thoroughly, and part waste oil can enter motor internal along the labyrinth, influences the operation stability and the reliability of motor.

The content of utility model

At the problems referred to above of existing vertical machine, the applicant has carried out research and has improved, and provides another kind can make disassembling and assembling machine convenient, moves more reliable and more stable vertical machine.

The technical solution of the utility model is as follows:

A kind of vertical machine, comprise flange base and be installed in support on the flange base, be connected with cooler on the outer wall of support, the upper and lower side of support is separately installed with upper end cover and bottom end cover, rotating shaft by be arranged at its upper end guide bearing and the thrust bearing of lower end be installed within upper end cover and the bottom end cover, guide bearing is connected with upper end cover, thrust bearing is connected with bottom end cover, stator, rotor are connected in support and the rotating shaft, be connected with flowline on the described guide bearing, the length of described flowline is less than the internal diameter of support; The handle that support is installed by its below closes bolt and is connected with flange base and bottom end cover; Thrust bearing is connected with bottom end cover by bearing holder (housing, cover), and the external diameter of bearing holder (housing, cover) is less than the internal diameter of stator.

Described thrust bearing is a splitted structure, and the distinguish place accompanies the L shaped insulation system that the imines film that is used for radial insulation and the epoxy plate that is used for axial dielectric constitute, and the junction of described imines film and epoxy plate is coated with epoxy putty.Described imines film is a stepped construction, and the number of plies is more than 3 layers.The thickness of described epoxy plate is 3～5mm.

The internal bearing cover below of described guide bearing is connected with oil box, is connected with flowline on the oil box.

Useful technique effect of the present utility model is:

(1) the utility model is when tearing motor open, rotor directly can be hung out together with bearing, bearings at both ends need not be taken apart, just can overhaul, safeguard rotor portion very easily, also can further stator be hung, detect stationary part, therefore can overhaul stator and rotor targetedly respectively.And, well protected bearing because bearing arrangement need not be taken apart.The most important thing is that the installation site of support flange on the basis need not be moved during maintenance, saved the step of recalibrating behind the mobile basic installation site, shortened the time of installing once more greatly, improved installation effectiveness.And the requirement to hanging device greatly reduces, and can save maintenance cost to a great extent.

(2) the utility model adopts the distinguish bearing holder (housing, cover) that has " L " type insulation system, promptly radially uses the film-insulated structure of multilayer imines, axially with bearing the epoxy plate insulation system of weight.Such insulation system had both satisfied the insulating requirements of variable frequency motor bearing, had also satisfied the stressed requirement of vertical machine bearing holder (housing, cover).

(3) oil circuit of guide bearing of the present utility model is reasonable.After the oil inlet pipe oiling, grease enters the bearing upper space, enters bearing inside and be lubricated after the disc circumferencial direction is mixed thoroughly, and waste oil enters oil box through internal bearing cover, can be discharged by flowline.Because oil box is at low level, the waste oil in the internal bearing cover can flow in the oil box, is difficult to enter motor internal along the labyrinth, has guaranteed the reliable and stable of motor operation.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the partial enlarged drawing at thrust bearing place among Fig. 1.

Fig. 3 is the partial enlarged drawing at guide bearing place among Fig. 1.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

Fig. 1 shows structure of the present utility model.As shown in Figure 1, the utility model comprises flange base 109 and is installed in support 108 on the flange base 109, be connected with cooler 101 on the outer wall of support 108, the upper and lower side of support 108 is separately installed with upper end cover 103 and bottom end cover 111, the handle that support 108 is installed by its below closes bolt 110 and is connected with flange base 109 and bottom end cover 111, the guide bearing 104 and the thrust bearing 114 at two ends are installed in upper end cover 103 and the bottom end cover 111 up and down by being arranged at it in rotating shaft 107, guide bearing 104 is connected with upper end cover 103, thrust bearing 114 is connected with bottom end cover 111, stator 105, rotor 106 is connected in support 108 and the rotating shaft 107.Be connected with flowline 102 on the guide bearing 104, the length of flowline 102 is less than the internal diameter of support 108.The bearing holder (housing, cover) 113 of thrust bearing 114 is by being connected with bottom end cover 111 closing bolt 112, and the external diameter of bearing holder (housing, cover) 113 is less than the internal diameter of stator 105.On the wall of support 108 belows and thrust bearing 114 corresponding positions cover plate 115 is arranged.

See Fig. 1, disassembly process of the present utility model is as follows: when tearing motor open, the upper end cover 103 of only need dismantling is taken the cover plate on the support 115 apart then, come loose the non-shaft stretching end bearing holder (housing, cover) closing bolt 112, rotor 106 directly can be hung out together with guide bearing 104 and thrust bearing 114.The guide bearing 104 at two ends and thrust bearing 114 just can overhaul very easily and safeguard and also can detect stator component 105 by rotor part 106 not with taking apart.If further require to pull down stator 105 maintenance, only need below support 108, the bolt 110 that closes to be come loose with mounting flange base 109, stator 105 can be hung maintenance and handle.

Fig. 2 shows the structure of thrust bearing 114.As shown in Figure 2, the bearing holder (housing, cover) 113 of thrust bearing 114 is for being divided into the structure of two lobes, accompany the L shaped insulation system that falls that the imines film 203 that is used for radial insulation and the epoxy plate that is used for axial dielectric 201 constitute in the bearing holder (housing, cover) 113, imines film 203 is coated with epoxy putty 202 with the junction of epoxy plate 201.Imines film 203 is a stepped construction, and the number of plies is more than 3 layers.The thickness of epoxy plate 201 is 3～5mm.The imines film adopts commercially available 0.12 polyimide film in the present embodiment, and the number of plies is 3 layers; Epoxy plate adopts commercially available 3240 epoxy resin bonded fibers, and thickness is 4mm; Epoxy putty adopts commercially available epoxy resin E-44.

Fig. 3 shows the structure of guide bearing.As shown in Figure 3, described guide bearing 104 comprises a ball bearing 304, and the upper end of ball bearing 304 is provided with bearing end cover 302, is provided with disc 303 and labyrinth ring 311 between ball bearing 304 and the bearing end cover 302; The lower end of ball bearing 304 is provided with internal bearing cover 307, is provided with disc 305 and labyrinth ring 310 between ball bearing 304 and the internal bearing cover 307, is provided with bearing holder (housing, cover) 309 between the outside of ball bearing 304 and bearing end cover 302 and the internal bearing cover 307; Be connected with oil inlet pipe 301 on the bearing end cover 302, internal bearing cover 307 bottoms are provided with oil box 306, are connected with flowline 308 on the oil box 306.

After oil adds from oil inlet pipe 301, enter the space on guide bearing 104 tops, enter bearing inside through disc 303 after circumferencial direction is mixed thoroughly and be lubricated, waste oil enters oil box 306 through internal bearing cover 307, is discharged by flowline 308 at last.Because oil box 306 is at low level, the waste oil in the internal bearing cover 307 can flow in the oil box 306, is difficult to enter along labyrinth ring 310 and labyrinth ring 311 inside of motor, has guaranteed the reliable and stable of motor operation.

Above-described only is preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that those skilled in the art under the prerequisite that does not break away from spirit of the present utility model and design, can make other improvement and variation.

Claims

1. vertical machine, comprise flange base (109) and be installed in support (108) on the flange base (109), be connected with cooler (101) on the outer wall of support (108), the upper and lower side of support (108) is separately installed with upper end cover (103) and bottom end cover (111), rotating shaft (107) by be arranged at its upper end guide bearing (104) and the thrust bearing (114) of lower end be installed within upper end cover (103) and the bottom end cover (111), guide bearing (104) is connected with upper end cover (103), thrust bearing (114) is connected with bottom end cover (111), stator (105), rotor (106) is connected in support (108) and the rotating shaft (107), it is characterized in that: be connected with flowline (102) on the described guide bearing (104), the length of described flowline (102) is less than the internal diameter of support (108); The handle that support (108) is installed by its below closes bolt (110) and is connected with flange base (109) and bottom end cover (111); Thrust bearing (114) is connected with bottom end cover (111) by bearing holder (housing, cover) (113), and the external diameter of bearing holder (housing, cover) (113) is less than the internal diameter of stator (105).

2. according to the described vertical machine of claim 1, it is characterized in that: described thrust bearing (114) is a splitted structure, the distinguish place accompanies the L shaped insulation system that the imines film (203) that is used for radial insulation and the epoxy plate (201) that is used for axial dielectric constitute, and described imines film (203) is coated with epoxy putty (202) with the junction of epoxy plate (201).

3. according to the described vertical machine of claim 2, it is characterized in that: described imines film (203) is stepped construction, and the number of plies is more than 3 layers.

4. according to the described vertical machine of claim 2, it is characterized in that: the thickness of described epoxy plate (201) is 3～5mm.

5. according to the described vertical machine of claim 1, it is characterized in that: internal bearing cover (307) below of described guide bearing (104) is connected with oil box (306), is connected with flowline (308) on the oil box (306).