CN106329800B

CN106329800B - Motor with thrust bearing, thrust bearing set thereof and oil injection method of motor

Info

Publication number: CN106329800B
Application number: CN201510377071.8A
Authority: CN
Inventors: 洪银树; 尹佐国; 陈业丰
Original assignee: Sunonwealth Electric Machine Industry Co Ltd
Current assignee: Sunonwealth Electric Machine Industry Co Ltd
Priority date: 2015-06-24
Filing date: 2015-07-01
Publication date: 2018-12-25
Anticipated expiration: 2035-07-01
Also published as: TWI547069B; TW201701567A; CN106329800A

Abstract

A motor with a thrust bearing and a thrust bearing assembly, and an oil injection method for the motor with the thrust bearing are used to solve the problem of inconvenience in injecting lubricating oil into the existing motor with a thrust bearing. The motor with a thrust bearing comprises a base, a thrust bearing assembly, a stator and a hub; wherein the thrust bearing assembly comprises a bearing sleeve, a thrust bearing and a rotating shaft with an oil injection hole, and the oil injection hole of the rotating shaft can be used to quickly inject lubricating oil into the bearing sleeve, so that the lubricating oil is evenly filled in each gap between the inner side wall of the bearing sleeve and the thrust bearing.

Description

The correction oil injection method of motor, its thrust bearing group and the motor with thrust bearing

Technical field

The present invention relates to a kind of motors with thrust bearing, especially a kind of that lubricating oil oiling operation can be rapidly completed Motor and its correction oil injection method with thrust bearing.

Background technique

Please refer to shown in Fig. 1, disclose a kind of existing motor 9 with thrust bearing, the motor 9 comprising a pedestal 91, One bearing holder (housing, cover) 92, a stator 93, a rotating member 94, a thrust bearing 95 and a wheel hub 96.The pedestal 91 is equipped with the bearing holder (housing, cover) 92, And the bearing holder (housing, cover) 92 is respectively equipped with an opening portion 921 and a closure 922；The stator 93 is incorporated into the bearing holder (housing, cover) 92；The rotation Part 94 is incorporated into inside the bearing holder (housing, cover) 92, which includes a shaft 941 and a limiting section 942, one end of the shaft 941 In conjunction with the limiting section 942；The thrust bearing 95 is set between the internal perisporium of the bearing holder (housing, cover) 92 and the shaft 941, to prevent The rotating member 94 is loosened from the bearing holder (housing, cover) 92；The wheel hub 96 is incorporated into the other end of the shaft 941, which is equipped with fixed with this A sub 93 opposite permanent magnets 961.During wherein the embodiment similar to the existing motor 9 with thrust bearing has been disclosed in State announces in the Patent Cases such as No. CN203707950U " motor with thrust bearing " new patent.

The above-mentioned existing motor 9 with thrust bearing is in assembling process, it is necessary to which a lubricating oil is injected above-mentioned bearing holder (housing, cover) Inside 92, it can ensure successfully rotary motion between the shaft 941 and above-mentioned thrust bearing 95 of above-mentioned rotating member 94.However, The existing motor 9 with thrust bearing is when directly injecting the lubricating oil by the opening portion 921 of the bearing holder (housing, cover) 92, the lubricating oil Be not easy each gap rapidly from top to bottom penetrated between the rotating member 94 and the thrust bearing 95, except cause lubricating oil oiling make The convenience of industry is bad outer, and the lubricating oil is also easy to cause to be not easy equably to be filled in 92 inner wall of bearing holder (housing, cover), the shaft 941 And in each gap between the thrust bearing 95, cause lubricity insufficient, therefore be easy to influence the behavior in service of the motor 9, in turn Reduce the service life of motor 9.

Summary of the invention

The present invention provides a kind of motor with thrust bearing, which injects in a thrust bearing group for lubricating oil Portion, the injection operation of lubricating oil is rapidly completed.

The present invention provides a kind of thrust bearing group of motor with thrust bearing, which injects for lubricating oil Afterwards, it can be ensured that lubricating oil is equably filled in the gap inside the thrust bearing group between each element.

The present invention provides a kind of correction oil injection method of motor with thrust bearing, which can be by above-mentioned thrust shaft Hold group convenience for promoting lubricating oil injection operation.

It includes a pedestal, a thrust bearing group, a stator and a wheel hub that the present invention, which has the motor of thrust bearing,.The pedestal Equipped with an engaging portion；The thrust bearing group includes a bearing holder (housing, cover), a thrust bearing and a shaft, the bearing holder (housing, cover) combination said base Engaging portion, the thrust bearing combine the shaft and be located at the bearing holder (housing, cover) inside, the shaft have an opposite first end and one Second end, the first end are located at outside the bearing holder (housing, cover), the second end towards inside the bearing holder (housing, cover), the shaft be equipped with through this first One oil filler point of end and the second end；The stator is incorporated into said base or above-mentioned thrust bearing group；The wheel hub is incorporated into above-mentioned The first end of shaft, the wheel hub are equipped with a permanent magnet opposite with said stator.

Wherein, an oil sealing part is arranged in the oil filler point of above-mentioned shaft.

Wherein, above-mentioned oil seal is a blocks made by the material with capillary airing function.

Wherein, the opposite end of above-mentioned bearing holder (housing, cover) is respectively equipped with an opening portion and a closure, and bearing holder (housing, cover) includes a housing Part, a upper shield and a capping, the package assembly are the hollow tube that opposite end is respectively formed opening, and the upper shield and the capping are incorporated into The opposite end of the package assembly, the opening portion are set to the upper shield, and one end of above-mentioned shaft stretches through the opening portion, which is constituted should Closure；Also, the outer peripheral edge of the package assembly and the outer peripheral edge of the upper shield may be selected not trim.

Wherein, above-mentioned package assembly and above-mentioned capping are integrally molded so as solid memder.

Wherein, above-mentioned thrust bearing has opposite a first end face and a second end face, which, which is equipped with, runs through The a positioning hole of the first end face and the second end face, above-mentioned shaft are incorporated into the location hole.

Wherein, the first end face of above-mentioned thrust bearing is towards above-mentioned opening portion, and the second end face of the thrust bearing is towards upper Closure is stated, forms a segment difference between the second end of above-mentioned shaft and the second end face of the thrust bearing, the segment difference is to form One oil storage space.

Wherein, the lateral wall of above-mentioned thrust bearing is equipped with several dynamic pressure ditches.

A kind of correction oil injection method of the motor with thrust bearing, step includes: prepare a bearing holder (housing, cover), a thrust bearing and One shaft with oil filler point, is assembled into a thrust bearing group for the bearing holder (housing, cover), the thrust bearing and the shaft；And one is lubricated Oil be injected into inside above-mentioned bearing holder (housing, cover) by above-mentioned oil filler point, make the lubricating oil be filled uniformly in the bearing holder (housing, cover) inner sidewall and Each gap between above-mentioned thrust bearing.

Wherein, after above-mentioned lubricating oil being injected into above-mentioned bearing holder (housing, cover) inside by the oil filler point of above-mentioned shaft, the note is closed Oilhole.

There is the present invention motor of thrust bearing and its correction oil injection method to design by the oil filler point of above-mentioned shaft, for horse Up in assembling process, quickly above-mentioned lubricating oil can be injected inside above-mentioned bearing holder (housing, cover), it is ensured that the lubricating oil can be filled uniformly in In each gap between the inner sidewall of the bearing holder (housing, cover) and the thrust bearing, and then reaches and promote motor assembling and oiling operation convenience Property, promote motor rotation stability and increase many effects such as motor service life.

Detailed description of the invention

Fig. 1: for the assembled sectional view of the existing motor with thrust bearing.

Fig. 2: there is the assembled sectional view of the motor of thrust bearing for the present invention.

Fig. 3: there is the stereogram exploded view of the thrust bearing group of the motor of thrust bearing for the present invention.

Fig. 4: there is the assembled sectional view of another embodiment of motor of thrust bearing for the present invention.

Fig. 5 a: have the use state of the correction oil injection method of the motor of thrust bearing with reference to figure (one) for the present invention.

Fig. 5 b: have the use state of the correction oil injection method of the motor of thrust bearing with reference to figure (two) for the present invention.

Fig. 5 c: have the use state of the correction oil injection method of the motor of thrust bearing with reference to figure (three) for the present invention.

Fig. 5 d: have the use state of the correction oil injection method of the motor of thrust bearing with reference to figure (four) for the present invention.

Description of symbols

(present invention)

1 pedestal

1a baseplate part 1b sleeve part

11 engaging portions

2 thrust bearing groups

21 bearing holder (housing, cover) 21a package assemblies

21b upper shield 21c capping

211 opening portion, 212 closure

22 thrust bearings

221 dynamic pressure ditch, 222 first end face

223 second end face, 224 location hole

23 shafts

231 first end, 232 second end

233 oil filler point, 24 oil sealing part

3 stators

31 silicon steel sheet, 32 coil

4 wheel hub, 41 permanent magnet

D segment difference

S oil storage space

O lubricating oil

(prior art)

9 motors

91 pedestals

92 bearing holder (housing, cover)s

921 opening portion, 922 closure

93 stators

94 rotating members

941 shaft, 942 limiting section

95 thrust bearings

96 wheel hub, 961 permanent magnet.

Specific embodiment

For above and other objects, features and advantages of the invention can be clearer and more comprehensible, be cited below particularly it is of the invention compared with Good embodiment, and cooperate attached drawing, it is described in detail below.

Referring to figure 2. shown in, the present invention have thrust bearing motor include at least a pedestal 1, a thrust bearing group 2, One stator 3 and a wheel hub 4.The thrust bearing group 2 is incorporated into the pedestal 1, which, which can choose, is incorporated into the pedestal 1 or is somebody's turn to do Thrust bearing group 2, the wheel hub 4 are incorporated into the thrust bearing group 2.

Said base 1 be equipped with an engaging portion 11, the engaging portion 11 can for it is various can for above-mentioned thrust bearing group 2 combine Structure design；In embodiment as shown in Figure 2, which may include an a baseplate part 1a and sleeve part 1b, and sleeve part 1b can Joined integrally or be removably incorporated into the center baseplate part 1a, sleeve part 1b is equipped with the perforation axially penetrated through, the pedestal 1 Engaging portion 11 be sleeve part 1b perforation, the perforation for the thrust bearing group 2 combination.

Above-mentioned thrust bearing group 2 is incorporated into the engaging portion 11 of said base 1, the thrust bearing group 2 include a bearing holder (housing, cover) 21, One thrust bearing 22 and a shaft 23.The opposite end of the bearing holder (housing, cover) 21 is respectively equipped with an opening portion 211 and a closure 212, And the bearing holder (housing, cover) 21 one end for can have closure 212 is incorporated into the engaging portion 11 of the pedestal 1；Wherein the bearing holder (housing, cover) 21 can be The various structures that can be combined for the thrust bearing 22 and the shaft 23 accommodating design, the present invention its face shaping without restriction And structure composition.In embodiment as shown in Figures 2 and 3, which includes a package assembly 21a, a upper shield 21b and an envelope 21c is covered, package assembly 21a is the hollow tube that opposite end is respectively formed opening.Whereby, which, can when assembling Be conducive to after the thrust bearing 22 and the shaft 23 are packed into package assembly 21a, then upper shield 21b and capping 21c is combined (modes such as thunderous weldering can be used) is in the opposite end of package assembly 21a；Wherein the opening portion 211 is set to upper shield 21b, for One end of the shaft 23 stretches through, and capping 21c constitutes the closure 212, to prevent the thrust bearing 22 and the shaft 23 certainly Package assembly 21a falls off, to promote the assembling convenience of the thrust bearing group 2.Alternatively, shown in referring to figure 4., the package assembly 21a and capping 21c can also be integrally molded so as solid memder, to reduce the structure complexity of the thrust bearing group 2；And the housing The outer peripheral edge of part 21a and the outer peripheral edge of upper shield 21b also may be selected not trim, to carry out package assembly 21a and upper shield 21b Weld job (thunderous weldering etc.).

Referring again to shown in Fig. 2 and 3, the thrust bearing 22 of above-mentioned thrust bearing group 2 may be disposed at above-mentioned bearing holder (housing, cover) 21 Inside, the lateral wall of the thrust bearing 22 are preferably equipped with several dynamic pressure ditches 221, when one profit of lateral wall attachment of the thrust bearing 22 When lubricating oil O, by the design of the dynamic pressure ditch 221, can make the thrust bearing 22 lateral wall and the bearing holder (housing, cover) 21 inner sidewall it Between an oil lamella is more readily formed, enable the thrust bearing 22 rotate actuation when, the thrust bearing 22 and the bearing holder (housing, cover) 21 can be reduced Frictional resistance between inner sidewall, to promote rotational stabilization.Also, the thrust bearing 22 has an opposite first end face 222 And a second end face 223, the first end face 222 is towards above-mentioned opening portion 211, and the second end face 223 is towards above-mentioned closure 212, and the thrust bearing 22 is equipped with a positioning hole 224 through the first end face 222 and the second end face 223；Above-mentioned shaft 23 are incorporated into the location hole 224, which can be between the bearing holder (housing, cover) 21 and the shaft 23, and the shaft 23 is fixed with this The fixed form in position hole 224 can be bonding, welding or engaging etc., and the present invention is without restriction；Whereby, the thrust bearing 22 and should Shaft 23 can rotate actuation after be combineding with each other together.

Referring again to shown in Fig. 2 and 3, above-mentioned shaft 23 has opposite a first end 231 and a second end 232, this turn After axis 23 is stretched through above-mentioned opening portion 211, which can be located at outside the bearing holder (housing, cover) 21, which can direction 21 inside (i.e. towards above-mentioned closure 212) of bearing holder (housing, cover), and the shaft 23 is additionally provided with through the first end 231 and second end 232 oil filler point 233, to carry out the oiling operation (joining subsequent explanation in detail) of above-mentioned lubricating oil O.Also, the of the shaft 23 The second end face 223 of two ends 232 and above-mentioned thrust bearing 22, which can choose, to be trimmed or does not trim, and the present invention is without restriction；This In embodiment, a segment difference D, the segment difference are formed between the second end 232 of the shaft 23 and the second end face 223 of the thrust bearing 22 D can be convenient to carry out the shaft 23 and the weld job (thunderous weldering etc.) of the thrust bearing 22, and simultaneous may be used to form an oil storage Space S, to promote the oil reserve that the present invention has the motor of thrust bearing.

Said stator 3 may be selected to be incorporated into the pedestal 1 or the bearing holder (housing, cover) 21, which can drive above-mentioned wheel to be various The structure design that hub 4 rotates；In embodiment as shown in Figure 2, which is arranged the bearing for being incorporated into above-mentioned thrust bearing group 2 The periphery wall of set 21, and it also can be single a silicon steel sheet that the stator 3, which includes several silicon steel sheet 31() and a coil 32, several silicon Steel disc 31 mutually stacks combination, and the coil 32 winding is incorporated into the several silicon steel sheets 31 mutually stacked after combining.

Above-mentioned wheel hub 4 is incorporated into the first end of above-mentioned shaft 23 using such as welding, bonding, locking or tight fit mode 231, which is equipped with a permanent magnet 41 opposite with said stator 3.Also, having between the permanent magnet 41 and the stator 3 Air gap, the coil 32 be powered after can pass through the air gap generate alternating magnetic field, with drive the wheel hub 4, above-mentioned thrust bearing group 2 only Thrust bearing 22 and shaft 23 rotate actuation, and (the detailed driving method and principle of stator 3 and permanent magnet 41 are those skilled in the art Member does not repeat it is appreciated that holding), motor rotation actuator function is provided.

The present invention has the correction oil injection method of the motor of thrust bearing, and step includes: as shown in Fig. 5 a to 5c, preparing above-mentioned Bearing holder (housing, cover) 21, above-mentioned thrust bearing 22 and the above-mentioned shaft 23 with oil filler point 233, and by the bearing holder (housing, cover) 21, the thrust bearing 22 and the shaft 23 be assembled into above-mentioned thrust bearing group 2；Also, as fig 5d, and above-mentioned lubricating oil O is passed through into the oil filler point 233 are injected into inside the bearing holder (housing, cover) 21, whereby, during lasting injection lubricating oil O, lubricating oil O can in advance with After the direction of first end 231 towards the second end 232 of the shaft 23 is injected into 21 bottom of bearing holder (housing, cover), then with the second of the shaft 23 End 232 gradually enables lubricating oil O be filled uniformly with inner sidewall and the thrust in the bearing holder (housing, cover) 21 towards the direction of first end 231 Each gap between bearing 22.Preferably, lubricating oil O is injected into inside the bearing holder (housing, cover) 21 by the oil filler point 233 Afterwards, the oil filler point 233 can be further closed, is overflowed outside above-mentioned bearing holder (housing, cover) 21 to avoid lubricating oil O by the oil filler point 233 Portion；In detail, there is the present invention motor of thrust bearing an oil sealing part 24 can be arranged in the oil filler point 233 of the above-mentioned shaft 23, The oil sealing part 24 can be adjacent to the first end 231 of the shaft 23, and the oil sealing part 24 preferably selects the material with capillary airing function The made blocks of material, to provide more preferably oil sealing effect.Whereby, referring again to shown in Fig. 2, completion oiling operation is somebody's turn to do Thrust bearing group 2 further can be assembled mutually with said base 1, said stator 3 and above-mentioned wheel hub 4, be had to constitute the present invention The motor of thrust bearing.

There is the present invention motor of thrust bearing and its correction oil injection method to design by the oil filler point 233 of above-mentioned shaft 23, can Quickly above-mentioned lubricating oil O is injected inside above-mentioned bearing holder (housing, cover) 21, be filled uniformly with lubricating oil O can in the bearing holder (housing, cover) 21 In each gap between inner sidewall and the thrust bearing 22, except the convenience for promoting the oiling operation during the motor assembles Outside, the more simultaneous rotational stabilization promoted after motor assembling, to increase the service life of motor.Furthermore thrust bearing of the present invention Group 2 may make up single element after being previously-completed assembling and oiling operation, whereby, it is only necessary to again be incorporated into the thrust bearing group 2 Said base 1, and cooperate assembling said stator 3 and above-mentioned wheel hub 4 after, the assembling operation of motor can be completed, therefore, can also mention Rise assembling convenience.

In conclusion the present invention has the motor of thrust bearing and its correction oil injection method really can be by the oiling of above-mentioned shaft 23 Hole 233 is designed, quickly to inject above-mentioned lubricating oil O inside above-mentioned bearing holder (housing, cover) 21, and ensure this during motor assembles Lubricating oil O is filled uniformly in each gap between the inner sidewall and above-mentioned thrust bearing 22 of the bearing holder (housing, cover) 21, and then is reached Motor assembling and oiling operation convenience are promoted, motor rotation stability is promoted and increases many effects such as motor service life.

Although the present invention has utilized above-mentioned preferred embodiment to disclose, however, it is not to limit the invention, any this field Technical staff is not departing within the spirit and scope of the present invention, and opposite above-described embodiment carries out various changes and still belongs to this with modification Invent protected technology scope, therefore protection scope of the present invention depending on claim subject to define.

Claims

1. A motor with a thrust bearing, characterized in that it comprises:

a base, the base is provided with a joint;

A thrust bearing set, the thrust bearing set includes a bearing sleeve, a thrust bearing and a rotating shaft, the bearing sleeve is combined with the joint portion of the base, the thrust bearing is combined with the rotating shaft and is located inside the bearing sleeve, the The rotating shaft has an opposite first end and a second end, the first end is located outside the bearing sleeve, the second end faces toward the inside of the bearing sleeve, and the rotating shaft is provided with an oil injection hole passing through the first end and the second end. hole;

a stator coupled to said base or said thrust bearing set; and

A wheel hub, the wheel hub is combined with the first end of the above-mentioned rotating shaft, the wheel hub is provided with a permanent magnet opposite to the above-mentioned stator, and an oil sealing member is arranged in the oil injection hole of the above-mentioned rotating shaft, and the above-mentioned oil sealing member is made of a material with capillary air permeability function Made of a block.

2. A motor with a thrust bearing, characterized in that it comprises:

a base, the base is provided with a joint;

a stator coupled to said base or said thrust bearing set; and

A wheel hub, the wheel hub is combined with the first end of the above-mentioned rotating shaft, the wheel hub is provided with a permanent magnet opposite to the above-mentioned stator, the opposite ends of the above-mentioned bearing sleeve are respectively provided with an opening and a closing portion, the bearing sleeve includes an outer sleeve parts, a sleeve cover and a cover, the outer sleeve is a hollow tube with openings formed at opposite ends, the sleeve cover and the cover are combined with the opposite ends of the outer sleeve, the opening is located on the sleeve A cover, one end of the rotating shaft pierces through the opening, and the cover forms the closing part.

3. The motor with a thrust bearing according to claim 2, wherein the outer casing and the cover are integrally formed as a single member.

4. The motor with a thrust bearing according to claim 2, wherein the outer peripheral edge of the outer sleeve and the outer peripheral edge of the sleeve cover are not aligned.

5. The motor with a thrust bearing according to claim 2, wherein the thrust bearing has a first end surface and a second end surface opposite to each other, and the thrust bearing is provided with a A positioning hole on the second end surface, the above-mentioned rotating shaft is combined with the positioning hole.

6. The motor with a thrust bearing according to claim 5, wherein the first end surface of the thrust bearing faces the opening, the second end surface of the thrust bearing faces the closed portion, and the second end surface of the rotating shaft A step difference is formed between the two ends and the second end surface of the thrust bearing, and the step difference is used to form an oil storage space.

7. A motor with a thrust bearing, characterized in that it comprises:

a base, the base is provided with a joint;

a stator coupled to said base or said thrust bearing set; and

A wheel hub, the wheel hub is combined with the first end of the above-mentioned rotating shaft, the wheel hub is provided with a permanent magnet opposite to the above-mentioned stator, and the outer wall of the above-mentioned thrust bearing is provided with a plurality of dynamic pressure grooves.

8. A thrust bearing assembly of a motor with a thrust bearing, characterized in that it comprises a bearing sleeve, a thrust bearing and a rotating shaft, the thrust bearing is combined with the rotating shaft and is located inside the bearing sleeve, and the rotating shaft has opposite a first end and a second end, the first end is located outside the bearing sleeve, the second end faces the inside of the bearing sleeve, and the rotating shaft is provided with an oil injection hole passing through the first end and the second end, The oil filling hole of the above-mentioned rotating shaft is provided with an oil-sealing member, and the above-mentioned oil-sealing member is a block made of a material with a capillary air-permeable function.

9. A thrust bearing assembly of a motor with a thrust bearing, characterized in that it comprises a bearing sleeve, a thrust bearing and a rotating shaft, the thrust bearing is combined with the rotating shaft and is located inside the bearing sleeve, and the rotating shaft has opposite a first end and a second end, the first end is located outside the bearing sleeve, the second end faces the inside of the bearing sleeve, and the rotating shaft is provided with an oil injection hole passing through the first end and the second end, The opposite ends of the above-mentioned bearing sleeve are respectively provided with an opening and a closing portion. The bearing sleeve includes an outer sleeve, a cover and a cover. The outer sleeve is a hollow tube with openings formed at both opposite ends. The sleeve cover and the cover are combined with opposite ends of the outer sleeve, the opening is arranged on the sleeve cover, one end of the rotating shaft extends through the opening, and the cover forms the closing portion.

10 . The thrust bearing assembly of a motor with thrust bearings according to claim 9 , wherein the outer sleeve and the cover are integrally formed as a single member. 11 .

11 . The thrust bearing assembly of a motor with thrust bearings according to claim 9 , wherein the outer peripheral edge of the outer sleeve and the outer peripheral edge of the sleeve cover are not aligned.

12. The thrust bearing assembly of a motor having a thrust bearing according to claim 9, wherein the thrust bearing has an opposite first end surface and a second end surface, and the thrust bearing is provided with a A positioning hole on the first end surface and the second end surface, the above-mentioned rotating shaft is combined with the positioning hole.

13. The thrust bearing assembly of a motor having a thrust bearing according to claim 12, wherein the first end surface of the thrust bearing faces the opening, and the second end surface of the thrust bearing faces the closed portion A step difference is formed between the second end of the rotating shaft and the second end surface of the thrust bearing, and the step difference is used to form an oil storage space.

14. A thrust bearing assembly of a motor with a thrust bearing, characterized in that it comprises a bearing sleeve, a thrust bearing and a rotating shaft, the thrust bearing is combined with the rotating shaft and is located inside the bearing sleeve, and the rotating shaft has opposite a first end and a second end, the first end is located outside the bearing sleeve, the second end faces the inside of the bearing sleeve, and the rotating shaft is provided with an oil injection hole passing through the first end and the second end, The outer wall of the thrust bearing is provided with a plurality of dynamic pressure grooves.