CN109926632A - A kind of degreasing unit on double-pendulum milling head - Google Patents

Abstract

The present invention provides the degreasing units on a kind of double-pendulum milling head, belong to machine tool technology field.It, which solves existing double-pendulum milling head, does not have degreasing unit, causes oil liquid that can drip along milling head after entering milling head, be easy to cause the technical problems such as milling head difficulty of processing increase.Degreasing unit on this double-pendulum milling head, double-pendulum milling head includes upper unit, lower unit and milling head, milling head includes outer housing and cutter motor, cutter motor includes stator and rotor, degreasing unit is located on cutter motor, degreasing unit includes that exchange covers and remove oil jacket, rotor covers and is removed also cross exchange oil jacket and can rotate relative to exchange set and except oil jacket, inlet channel and suction passage are offered in exchange set, except offering air-out passage in oil jacket, air-out passage is connected to inlet channel, oil removing, which is put on, offers shoe cream room, oil on rotor can be blown into shoe cream room by several air-out passages, suction passage is connected to shoe cream room.The present invention has the advantages that prevent oil liquid from flowing out from milling head.

Description

A kind of degreasing unit on double-pendulum milling head

Technical field

The invention belongs to machine tool fields, are related to a kind of double-pendulum milling head, the degreasing unit on especially a kind of double-pendulum milling head.

Background technique

Precision Machining, milling head are all generally carried out by the numerically-controlled machine tool of five-axle linkage during large-scale precision machine-building The meeting high-speed rotation in cutting process moistens the component being set on rotor so needing to input oil liquid to the inside of it in real time It is sliding, but such consequence will lead to oil liquid and can flow on milling cutter along rotor, and milling cutter oil liquid when cutting product is caused to drip Onto product, therefore how to prevent oil liquid from betraying from milling head to be a problem to be solved.

In a kind of single pendulum milling head based on single axle table of Chinese patent literature [Authorization Notice No.: CN200995332], packet Milling head is included, the electro spindle of milling head is installed in electro spindle case.Single pendulum milling head further includes by AC permanent magnetic synchronization external-rotor-type torque Motor-driven single axle table, the horizontal setting of single axle table；Electro spindle case is fixed on the floral disc of single axle table by side.

Above structure does not have degreasing unit, such that oil liquid can drip after entering milling head along milling head, is easy to make Increase at milling head difficulty of processing.

Summary of the invention

The purpose of the present invention is to propose to the degreasing unit on a kind of double-pendulum milling head, solve how to prevent oil liquid from milling head Outflow.

Object of the invention can be realized by the following technical scheme:

A kind of degreasing unit on double-pendulum milling head, double-pendulum milling head includes upper unit, lower unit and milling head, the lower unit It being connected on the upper unit, the milling head is connected in the lower unit, and the milling head includes outer housing and cutter motor, The cutter motor is located in the outer housing, and the cutter motor includes stator and rotor, and the rotor is located at stator It is interior, which is characterized in that degreasing unit is located on cutter motor, and the degreasing unit includes exchange set and removes oil jacket, and described removes Oil jacket is located in exchange set, the rotor cover also cross the exchange, it is described remove oil jacket and the rotor can relatively described in It exchanges set, is described except oil jacket rotates, inlet channel and suction passage are offered in the exchange set, described remove offers in oil jacket Several air-out passages towards the rotor sidewall, several air-out passages are connected to the inlet channel, described Oil removing, which is put on, offers shoe cream room, and the oil on the rotor can be blown into shoe cream room by several air-out passages, described Suction passage is connected to the shoe cream room.

Exchange set is also except in oil jacket for the inlet channel in addition to oil jacket provides fixed function, being provided in exchange set Air-out passage provide the gas exported outward, due to except between oil jacket and rotor have gap, can thus make oily energy It is flowed down along rotor, and due to air-out passage, may make the air blown out from air-out passage by oil liquid in oil jacket removing Rotor, which is up blown into, to be located at oil removing and covers in upper shoe cream room, finally by can connect in external world's access vacuum equipment and suction passage Raw negative pressure of practicing midwifery all siphons away the oil liquid collected in shoe cream room, and can be realized prevents oil liquid from dripping from milling head in this way.

In the degreasing unit on above-mentioned double-pendulum milling head, the lateral surface except oil jacket circumferentially offers wind collection slot and storage Oil groove forms wind centralizing cavity between the wind collection slot and the inner sidewall for exchanging set, goes out described in the inlet channel and several Wind channel is connected to the wind centralizing cavity, and the inlet channel is connected to by the wind centralizing cavity with several air-out passages. Above structure, which puts on exchange, only need to open up an inlet channel gas of needs can be sent in wind centralizing cavity, to make Obtaining several air-out passages can spray outward air by the high pressure gas in wind centralizing cavity.

In the degreasing unit on above-mentioned double-pendulum milling head, formed between the oil storage tank and the inner sidewall for exchanging set Above-mentioned shoe cream room, the lateral wall except oil jacket are tightly attached to the inner sidewall of the exchange set, and the wind collection slot is located at the oil storage The lower section of slot.Above structure can enable smoothly to be pooled in degreasing tank by the oil liquid that air-out passage is blown back.

In the degreasing unit on above-mentioned double-pendulum milling head, several air-out passages are out of described wind collection slot to removing The top orientation of the medial surface of oil jacket opens up, and several air-out passages are along except oil jacket circle distribution.Above structure can make Obtaining pressure-air smoothly can be blown back into the oil liquid on rotor in shoe cream room by air-out passage.

In the degreasing unit on above-mentioned double-pendulum milling head, the medial surface except oil jacket offers oil resistance slot, it is described go out Wind channel is located at described one end except on the inside of oil jacket and is opened in the oil resistance slot.Above structure can make oil liquid flow down from rotor Energy brief stay thus can make outlet passageway that oil liquid all be back into storage by enough thrust in oil resistance slot after coming In oil pocket.

In the degreasing unit on above-mentioned double-pendulum milling head, the top except oil jacket close to the position of inner sidewall have from Except the guide part that oil jacket is obliquely installed to rotor lateral surface direction, the guide part removes the one side of oil jacket lateral surface described in For guide surface one, the guide part is described in except the one side of oil jacket medial surface is guide surface two, the bottom of the guide surface one End is resisted against in the oil resistance slot, and the bottom end of the guide surface two is resisted against on the top end face except oil jacket.One energy of guide surface Oil liquid on rotor is oriented to the lateral surface except oil jacket as far as possible, guide surface two can make air-out passage that will preferably be located at resistance Oil in oil groove flows back into the lateral surface except oil jacket by guide surface two.

In the degreasing unit on above-mentioned double-pendulum milling head, a lateral edge of the shoe cream room close to the top for removing oil jacket It is described except oil jacket circumferentially offers several conduction holes.Conduction hole can will collect in the oil liquid for removing oil jacket top and pass through conduction hole It is introduced into shoe cream room, so as to blot suction passage preferably only oil liquid.

In the degreasing unit on above-mentioned double-pendulum milling head, exchange set with set that there are two coaxial between the rotor Bearing is equipped with stripper loop between two bearings, and the bearing exchange with described equipped with interior coolant jacket between set, described interior cold But the lateral wall covered is tightly attached on the inner sidewall of exchange set, and the outer ring of the bearing is fixed on the inner sidewall of the interior coolant jacket On, the inner ring of the bearing is fixed on the rotor.Bearing can make exchange set when the rotor rotates can relative rotor it is static, So that extraneous oil liquid stable can be lubricated by exchanging to cover to enter on rotor.

In the degreasing unit on above-mentioned double-pendulum milling head, the lateral wall of the exchange set has branch close to the position at top Support part, described exchange are arranged with support ring on the lateral wall covered, and the bottom surface of the support ring is resisted against on the stator, the branch Elastic component is equipped between the bottom of support part and the support ring, the exchange set can be by above and below the relatively described support ring of elastic component It is mobile.Cutter motor can generate a large amount of heat in the process of running, caused due to metal self character exchange set by Heat can expand, thus be provided with exchange cover upper inlet channel and suction passage may be fixed on it is corresponding on outer housing Channel is staggered, and causes inlet channel and suction passage to can not be successfully air inlet or oil suction, therefore exchange covers in milling head and support portion Between retain a gap exchange can be enabled to cover there is enough reserved spaces to go to expand around in expanded by heating, thus No matter how can expand can make inlet channel and suction passage be aligned, so as to smoothly transport milling head normally Row.

In the degreasing unit on above-mentioned double-pendulum milling head, the bottom of the support portion is divided along the circumferential direction of the exchange set Several supported holes are furnished with, several described supported holes are opened up in axial, and the elastic component is cylindrical spring, the cylindrical spring One end be resisted against in the supported hole, the other end of the cylindrical spring is resisted against in the support ring.Cylindrical spring can make Must exchange has gap between set and stator, when heated exchange set be expanded into behind top upwards cylindrical spring can be pressed down against from And complete even inflation.

Compared with prior art, the degreasing unit on this double-pendulum milling head has the advantages that prevent oil liquid from flowing out from milling head.

Detailed description of the invention

Fig. 1 is that this double-pendulum milling head faces schematic cross-sectional view.

Fig. 2 is the partial enlargement structural representation of the extrusion preventing device in the portion A in Fig. 1.

Fig. 3 is the partial enlargement structural representation of the degreasing unit in the portion B in Fig. 1.

Fig. 4 is that the lower unit of this double-pendulum milling head and milling head face schematic cross-sectional view.

Fig. 5 be in the milling head of this double-pendulum milling head except oil jacket schematic perspective view.

In figure, 1, upper housing；10, C axle motor；11, stator；12, rotor；13, C shaft encoder；14, swivel bearing；15, Bearing holder (housing, cover)；150, groove one；16, adjustable spring；17, bearing block；170, groove two；18, transverse bearing；2, left shell；20, on Oil passage；21, Bai Kou；22, fixing sleeve；23, rotary distributor；230, oil transportation chamber；231, groove；232, inner fluid channel； 233, interconnecting piece；234, support plate；235, support column；24, rotary sleeve；240, placement section；241, fixed part；242, load portion； 243, bearing；25, braking sleeve；26, A shaft encoder；3, right shell body；30, A spindle motor；300, stator；301, rotor；4, milling head； 40, outer housing；41, cutter motor；410, stator；411, rotor；42, lower oil passage；5, exchange set；50, inlet channel； 51, suction passage；52, support portion；53, supported hole；6, oil jacket is removed；60, air-out passage；61, shoe cream room；62, oil storage tank；620, Conduction hole；63, wind collection slot；64, wind centralizing cavity；65, oil resistance slot；66, guide part；660, guide surface one；661, guide surface two；67, Bearing；670, stripper loop；68, support ring；69, cylindrical spring；7, interior coolant jacket.

Specific embodiment

Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the degreasing unit of double-pendulum milling head, double-pendulum milling head include upper unit, are fixed on Lower unit on unit and the milling head being fixed in lower unit, upper unit includes the C that upper housing 1 and stator 12 can be rotated around C axis The stator 11 of spindle motor 10, C axle motor 10 is fixed in upper housing 1, is fixed with stator 12 on the stator 12 of C axle motor 10, fixed The top for being located at C axle motor 10 on son 12 is arranged with C shaft encoder 13, and lower unit includes left shell 2, right shell body 3 and difference Two A spindle motors 30 that can be rotated around A axis in left shell 2 and right shell body 3, A spindle motor 30 includes being fixed on left shell 2 Or the stator 300 in right shell body 3 and the rotor in stator 300 301, milling head 4 mill between left shell 2 and right shell body 3 First 4 include outer housing 40 and the cutter motor 41 in outer housing 40.

As shown in Fig. 1, Fig. 3 and Fig. 5, degreasing unit is located on cutter motor 41, and degreasing unit includes exchange set 5 and is located at Exchange, which covers in 5, removes oil jacket 6, and rotor 411 is also cross exchange set 5 and except oil jacket 6 and opposite can exchange set 5 and except 6 turns of oil jacket It is dynamic, inlet channel 50 and suction passage 51 are offered in exchange set 5, except offering several in oil jacket 6 towards 411 side wall of rotor Air-out passage 60, several air-out passages 60 are connected to inlet channel 50, several except offering shoe cream room 61 on oil jacket 6 Oil on rotor 411 can be blown into shoe cream room 61 by air-out passage 60, and suction passage 51 is connected to shoe cream room 61.

As shown in Fig. 1, Fig. 3 and Fig. 5, except the lateral surface of oil jacket 6 circumferentially offers wind collection slot 63 and oil storage tank 62, wind collection slot 63 and exchange set 5 inner sidewall between form wind centralizing cavity 64, inlet channel 50 and several air-out passages 60 with wind centralizing cavity 64 Connection, inlet channel 50 are connected to by wind centralizing cavity 64 with several air-out passages 60, oil storage tank 62 with exchange cover 5 inner sidewall it Between form above-mentioned shoe cream room 61, except the lateral wall of oil jacket 6 is tightly attached to the inner sidewall of exchange set 5, wind collection slot 63 is located at oil storage tank 62 Lower section, several air-out passages 60 open up out of wind collection slot 63 to the top orientation of medial surface except oil jacket 6, and several go out Wind channel 60 is along 6 circle distribution of oil jacket is removed, and except the medial surface of oil jacket 6 offers oil resistance slot 65, air-out passage 60 is located at oil removing One end of 6 inside of set is opened in oil resistance slot 65.

As shown in Fig. 1, Fig. 3 and Fig. 5, have close to the position of inner sidewall from oil jacket 6 is removed to rotor except the top of oil jacket 6 The guide part 66 that 411 lateral surface directions are obliquely installed, guide part 66 towards except 6 lateral surface of oil jacket one side be guide surface one 660, guide part 66 is guide surface 2 661 towards the one side except 6 medial surface of oil jacket, and the bottom end of guide surface 1 is resisted against resistance In oil groove 65, the bottom end of guide surface 2 661 is resisted against on the top end face except oil jacket 6, and shoe cream room 61 is close to the top except oil jacket 6 Side offers several conduction holes 620 along except oil jacket 6 is circumferential.

As shown in Fig. 1, Fig. 3 and Fig. 5, coaxial bearing 67 there are two being set between exchange set 5 and rotor 411, two bearings Be equipped with stripper loop 670 between 67, bearing 67 with exchange between set 5 equipped with interior coolant jacket 7, the lateral wall of interior coolant jacket 7 is tightly attached to On the inner sidewall of exchange set 5, the outer ring of bearing 67 is fixed on the inner sidewall of interior coolant jacket 7, and the inner ring of bearing 67, which is fixed on, to be turned On son 411, the lateral wall of exchange set 5 has support portion 52 close to the position at top, is arranged with support on the lateral wall of exchange set 5 Ring 68, the bottom surface of support ring 68 are resisted against on stator 410, and elastic component is equipped between the bottom and support ring 68 of support portion 52, are handed over Changing set 5 can be moved up and down by elastic component with respect to support ring 68, and the bottom of the support portion 52 covers 5 circumferential direction along the exchange Several supported holes 53 are distributed with, several described supported holes 53 are opened up in axial, and elastic component is cylindrical spring 69, cylindrical spring 69 one end is resisted against in supported hole 53, and the other end of cylindrical spring 69 is resisted against in support ring 68.

Exchange set 5 in addition to oil jacket 6 provides fixed function, be provided with inlet channel 50 in exchange set 5 also for except Air-out passage 60 in oil jacket 6 provides the gas exported outward, has gap between oil jacket 6 and rotor 411 due to removing, in this way Oil can be enabled to flow down along rotor 411, and due to except air-out passage 60 in oil jacket 6, it may make from air-out passage Oil liquid rotor 411 is up blown by the air blown out in 60 to be located at except in the shoe cream room 61 on oil jacket 6, finally by can be outside Boundary's access vacuum equipment connect generation negative pressure with suction passage 51 and all siphons away the oil liquid collected in shoe cream room 61, so i.e. It can be achieved to prevent oil liquid from dripping from milling head 4.

As depicted in figs. 1 and 2, extrusion preventing device is arranged between C axle motor 10 and C shaft encoder 13, extrusion preventing device Including swivel bearing 14 and the bearing holder (housing, cover) 15 for being fixed on 14 outer ring of swivel bearing, the inner ring of bearing is set on stator 12, rotation The inner ring of bearing 14 is resisted against on the rotating member of C shaft encoder 13, and the luminosity disk of C shaft encoder 13 is fixed on bearing block 17, The top of bearing holder (housing, cover) 15 is resisted against on the luminosity disk of C shaft encoder 13.

As depicted in figs. 1 and 2, circle distribution has several elastic components, bearing holder (housing, cover) 15 between bearing holder (housing, cover) 15 and C axle motor 10 It can be moved by elastic component along the axis direction of bearing holder (housing, cover) 15, the top of bearing holder (housing, cover) 15 is resisted against C axis coding by elastic component On the bottom surface of device 13, elastic component is adjustable spring 16, is offered on the bottom surface of bearing holder (housing, cover) 15 one-to-one with adjustable spring 16 Groove 1, the inner bottom surface of bearing block 17 are located at the opposite position of groove 1 and open up fluted 2 170, adjustable spring 16 Both ends bear against in groove 1 and groove 2 170 in.

As depicted in figs. 1 and 2, the outer sheath of bearing holder (housing, cover) 15 is equipped with the bearing block 17 in tubbiness, and stator 12 passes through bearing block 17 bottom, the outer bottom of bearing block 17 are fixed on the stator 12 of C axle motor 10, and the bottom surface of bearing holder (housing, cover) 15 is resisted against bearing block On 17 inner bottom surface, the both ends of elastic component bear against the bottom in bearing holder (housing, cover) 15 and the bottom of bearing block 17,15 energy of bearing holder (housing, cover) It is moved relative to bearing block 17 along the axis direction of C axis, transverse bearing 18, bearing block is equipped between bearing block 17 and bearing holder (housing, cover) 15 17 are fixed on the outer ring of transverse bearing 18, and bearing holder (housing, cover) 15 is fixed on the inner ring of transverse bearing 18, the inner ring of transverse bearing 18 It can be moved relative to outer ring along the axis direction of transverse bearing 18.

After C axle motor 10 is run for a long time, C axle motor 10 and bearing rotate issued amount of heat and can be transmitted to On bearing holder (housing, cover) 15, bearing holder (housing, cover) 15 heats up expansion at this time, and due to adjustable spring, bearing holder (housing, cover) 15 can be resisted against at the beginning On the bottom surface of C shaft encoder 13, can slowly squeeze elastic component after heated and expand downwards, thus eliminate two-way swinging head it is long when Between influence of the fever to machining accuracy.

As shown in Figure 1 and Figure 4, yaw structure between rotor 301 and milling head 4 and can drive milling head 4 to swing, yaw knot Structure includes the fixing sleeve 22 being fixed in left shell 2 and the rotary distributor 23 being fixed on rotor 301,23 energy of rotary distributor Relative to fixed 22 rotation of set, several upper oil passages 20 are offered in fixing sleeve 22, are offered on rotary distributor 23 several A oil transportation chamber 230, the lateral surface of rotary distributor 23 circumferentially offer several grooves 231, several grooves 231 with fixation Cover and form several above-mentioned oil transportation chambers 230 between 22 inner walls, several upper oil passages 20 respectively with several corresponding oil transportations Chamber 230 be connected to, if fixing sleeve 22 towards one end of outer housing 40 along the axis direction of rotary distributor 23 offer respectively with Several inner fluid channels 232 that dry oil transportation chamber 230 is connected to one by one, several lower oil passages 42 are along rotary distributor 23 Circle distribution offers several lower oil passages 42 on outer housing 40, if several lower oil passages 42 respectively with it is corresponding Dry oil transportation chamber 230 is connected to.

As shown in Figure 1 and Figure 4, the side opposite with right shell body 3 of left shell 2 offers pendulum mouth 21, rotary distributor 23 One end be located in pendulum mouth 21 and be bolted on the side of outer housing 40, rotary distributor 23 in a ring, rotation distribution There is the interconnecting piece 233 of opposite internal ring wall protrusion close to one end of outer housing 40, interconnecting piece 233 passes through spiral shell on the internal ring wall of device 23 Bolt and outer housing 40 are fixed, and rotary distributor 23 has a support plate 234 far from one end of outer housing 40, in support plate 234 along 23 axis direction of rotary distributor is equipped with support column 235, and support column 235 is equipped with A shaft encoder 26.

As shown in Figure 1 and Figure 4, rotary sleeve 24 is equipped between fixing sleeve 22 and rotor 301, rotary sleeve 24 includes being located at rotor Placement section 240 in 301, the fixed part 241 in pendulum mouth 21 and holding between placement section 240 and fixed part 241 Power portion 242, placement section 240 are bolted on rotor 301, and outer housing 40 is bolted on fixed part 241, are held Bearing 243 is equipped between power portion 242 and the inner cavity of right shell body 3 or left shell 2, the outer ring of bearing 243 is bolted on fixed On son 300, the inner ring of bearing 243 is set in load portion 242, and braking sleeve 25, system are equipped between fixing sleeve 22 and rotary sleeve 24 Dynamic set 25 is bolted on rotary sleeve 24, and braking sleeve 25 is made of rub resistance material.

Oil liquid can be out of, extraneous inflow is provided in fixing sleeve 22 upper oil passage 20, due to upper oil passage 20 and rotation The oil transportation chamber 230 turned on distributor 23 is connected to, so the oil liquid in upper oil passage 20 is flowed into again in corresponding oil transportation chamber 230, Rotary distributor 23 can make milling head 4 be able to achieve in rotary course by oil liquid from being transported in milling head 4 in yaw, Realize the lubricant effect of milling head 4 during operation；And upper oil passage 20 is passed through into the mode energy that is provided in fixing sleeve 22 Realization prevents oil liquid during transportation because oil pressure is excessive to be leaked the problem of.

Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (10)

1. the degreasing unit on a kind of double-pendulum milling head, double-pendulum milling head includes upper unit, lower unit and milling head (4), and described places an order Member is connected on the upper unit, and the milling head (4) is connected in the lower unit, and the milling head (4) includes outer housing (40) it is located in the outer housing (40) with cutter motor (41), the cutter motor (41), cutter motor (41) packet Stator (410) and rotor (411) are included, the rotor (411) is located in stator (410), which is characterized in that degreasing unit is located at On cutter motor (41), the degreasing unit includes exchange set (5) and removes oil jacket (6), and described is located at the friendship except oil jacket (6) It changes in set (5), the rotor (411) cover (5) also cross the exchange, is described except oil jacket (6) and the rotor (411) energy is relatively The exchange set (5), described remove oil jacket (6) rotate, and offer inlet channel (50) and suction passage in the exchange set (5) (51), described to offer several air-out passages (60) towards the rotor (411) side wall, several institutes except oil jacket (6) are interior Air-out passage (60) to be stated to be connected to the inlet channel (50), described remove offers shoe cream room (61) on oil jacket (6), and several Oil on the rotor (411) can be blown into shoe cream room (61) by the air-out passage (60), the suction passage (51) with Shoe cream room (61) connection.

2. the degreasing unit on double-pendulum milling head according to claim 1, which is characterized in that the outside except oil jacket (6) Face circumferentially offers wind collection slot (63) and oil storage tank (62), between the wind collection slot (63) and the inner sidewall for exchanging set (5) It is formed wind centralizing cavity (64), the inlet channel (50) and several air-out passages (60) connect with the wind centralizing cavity (64) Logical, the inlet channel (50) is connected to by the wind centralizing cavity (64) with several air-out passages (60).

3. the degreasing unit on double-pendulum milling head according to claim 2, which is characterized in that the oil storage tank (62) with it is described It is formed above-mentioned shoe cream room (61) between the inner sidewall of exchange set (5), the lateral wall except oil jacket (6) is tightly attached to the exchange set (5) inner sidewall, the wind collection slot (63) are located at the lower section of the oil storage tank (62).

4. the degreasing unit on double-pendulum milling head according to claim 2, which is characterized in that several air-out passages (60) it is opened up from the introversive top orientation except the medial surface of oil jacket (6) of the wind collection slot (63), several air-out passages (60) along except oil jacket (6) circle distribution.

5. the degreasing unit on double-pendulum milling head according to claim 4, which is characterized in that the inside except oil jacket (6) Face offers oil resistance slot (65), and the air-out passage (60) is located at described one end except on the inside of oil jacket (6) and is opened in the oil resistance slot (65) in.

6. the degreasing unit on double-pendulum milling head according to claim 2, which is characterized in that the top except oil jacket (6) Have close to the position of inner sidewall from the guide part (66) being obliquely installed except oil jacket (6) to rotor (411) lateral surface direction, it is described Guide part (66) is guide surface one (660) towards the one side except oil jacket (6) lateral surface, and the guide part (66) is towards institute It states except the one side of oil jacket (6) medial surface is guide surface two (661), the bottom end of the guide surface one (660) is resisted against the resistance In oil groove (65), the bottom end of the guide surface two (661) is resisted against on the top end face except oil jacket (6).

7. the degreasing unit on double-pendulum milling head according to claim 6, which is characterized in that the shoe cream room (61) is close to institute The side for stating the top except oil jacket (6) circumferentially offers several conduction holes (620) along described remove oil jacket (6).

8. the degreasing unit on double-pendulum milling head according to claim 1, which is characterized in that exchange set (5) with it is described It is set between rotor (411) there are two coaxial bearing (67), is equipped with stripper loop (670) between two bearings (67), it is described Bearing (67) is equipped with interior coolant jacket (7) between set (5) with described exchange, and the lateral wall of the interior coolant jacket (7) is tightly attached to exchange On the inner sidewall for covering (5), the outer ring of the bearing (67) is fixed on the inner sidewall of the interior coolant jacket (7), the bearing (67) inner ring is fixed on the rotor (411).

9. the degreasing unit on double-pendulum milling head according to claim 8, which is characterized in that the lateral wall of exchange set (5) leans on The position at nearly top has support portion (52), is arranged with support ring (68), the support ring on the lateral wall of the exchange set (5) (68) bottom surface is resisted against on the stator (410), is equipped between the bottom and the support ring (68) of the support portion (52) Elastic component, the exchange set (5) can be moved up and down by the relatively described support ring (68) of elastic component.

10. the degreasing unit on double-pendulum milling head according to claim 9, which is characterized in that the bottom of the support portion (52) There are several supported holes (53) in portion along exchange set the circumferentially distributed of (5), several described supported holes (53) are opened in axial If the elastic component is cylindrical spring (69), one end of the cylindrical spring (69) is resisted against in the supported hole (53), described The other end of cylindrical spring (69) is resisted against on the support ring (68).