CN206230294U

CN206230294U - The electric rotary main shaft device of self-cleaning

Info

Publication number: CN206230294U
Application number: CN201621346038.5U
Authority: CN
Inventors: 周育民
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-12-09
Filing date: 2016-12-09
Publication date: 2017-06-09
Anticipated expiration: 2026-12-09

Abstract

A kind of electric rotary main shaft device of self-cleaning, belongs to material Machining Technology for Cutting field.Including a main shaft；One is socketed in the conductive set group on main shaft, and the conductive set group has a pair of conductive ring；One power supply set group, it has a carbon brush ring seat and a pair of carbon brush parts, described carbon brush ring seat is set in outside conductive sleeve group by middle axis hole and remains with gap between the two, a pair of carbon brush accommodating holes and a gas hole are radially offered on the periphery of the carbon brush ring seat, described gas hole connects with the axis hole in the middle of carbon brush ring seat respectively with a pair of carbon brush accommodating holes, a pair of carbon brush parts are located in a pair of carbon brush accommodating holes and its end is in contact with a pair of conductive ring in conductive set group respectively, external power is imported on conducting ring by carbon brush part, outside gas is incorporated between carbon brush part and conducting ring by gas hole.The carbon distribution between carbon brush part and conducting ring is cleaned by source of the gas, and carbon brush part and conducting ring are cooled down.

Description

The electric rotary main shaft device of self-cleaning

Technical field

The utility model belongs to material Machining Technology for Cutting field, and in particular to a kind of electric live spindle dress of self-cleaning Put.

Background technology

One of main function of electric live spindle is to rotate at a high speed, and using makes what is be connected with the electric live spindle Ultrasonic cutter can follow live spindle to synchronize rotation with cutting workpiece, and another function is transmission electric power, makes to connect therewith The ultrasonic cutter for connecing carries out high-frequency vibration, produced abrasion during improving the efficiency of cutting and reduce cutting.

At present, existing electric rotary main shaft device, it is mainly installs conductive copper ring on main shaft, then at the copper A carbon brush holder is installed outside ring, external power is directed on copper ring by the carbon brush on the carbon brush holder, and then by copper ring by electric power Transmit to ultrasonic cutter.However, due to that will be produced because friction can produce the carbon brush of abrasion, abrasion between carbon brush and copper ring Carbon dust, on copper ring and carbon brush, serious meeting causes short-circuit power-off to carbon dust meeting cap product, influences the transmission of electric power, makes ultrasonic knife Tool loses effect.In addition, the friction between carbon brush and copper ring can also produce heat, conductance can be caused to reduce.

In view of above-mentioned prior art, it is necessary to which the structure to existing electric rotary main shaft device is reasonably improved.For This, the applicant has made actively and effectively to explore, and technical scheme described below is formd finally.

The content of the invention

The purpose of this utility model is to provide a kind of electric rotary main shaft device of self-cleaning, is conducive to cleaning carbon brush and copper Carbon distribution between ring and use a problem that avoiding conductance reduction, short circuit power-off and produce hyperpyrexia.

The purpose of this utility model is such to what is reached, a kind of electric rotary main shaft device of self-cleaning, it is characterised in that： Including a main shaft；One is socketed in the conductive set group on main shaft, and the conductive set group has a pair of conductive ring；One power supply set group, its tool There are a carbon brush ring seat and a pair of a carbon brush parts, it is outer and both it that described carbon brush ring seat is set in conductive sleeve group by middle axis hole Between remain with gap, a pair of carbon brush accommodating holes and a gas hole, institute are radially offered on the periphery of the carbon brush ring seat The gas hole stated connects with the axis hole in the middle of carbon brush ring seat respectively with a pair of carbon brush accommodating holes, and a pair of described carbon brush parts wear In a pair of carbon brush accommodating holes and its end is in contact with a pair of conductive ring in conductive set group respectively, by described carbon brush part External power is imported on conducting ring, outside gas is incorporated between carbon brush part and conducting ring by described gas hole.

In a specific embodiment of the present utility model, described main shaft includes a spindle rod, a shaft coupling and Collar bush, described shaft coupling is connected on one end of spindle rod, described for transmitting rotary power and the rotation of drive shaft bar Collar bush be set on the other end of spindle rod, and described conductive set group is then set on spindle rod, wherein, described master The radial direction that axostylus axostyle is connected one end with shaft coupling offers a pair of threading holes, and a pair of lead wires is further opened with the axial both sides of spindle rod Hole, described fairlead is connected with corresponding threading hole respectively, in the radial direction of the spindle rod other end there are a pair of main shafts to lead Electric contact, described conductive set group has two conductor wires, and one end of two conductor wires electrically connects and another with a pair of conductive ring respectively End electrically connects after being each passed through the threading hole of corresponding position and fairlead with a pair of main shaft conductive junction points.

In another specific embodiment of the present utility model, described conductive set group also includes a bushing, an insulation Set and a packing ring, described insulation sleeve are set on the outer peripheral face of bushing, and described a pair of conductive ring is respectively sleeved at insulation On the outer peripheral face of set and spaced certain distance, described packing ring against and be embedded on the inner peripheral surface of bushing one end, institute The bushing stated is set on spindle rod, and makes both bushing and spindle rod structures to be closely connected by described packing ring.

In another specific embodiment of the present utility model, described bushing is axially offering a pair of bushing leads Hole, described insulation sleeve is same in axial direction and to be corresponded to a pair of insulation sleeve leads is offered at a pair of positions of bushing fairlead Hole, described a pair of insulation sleeve fairleads and a pair of bushing fairleads are respectively used to be walked for the other end of two conductor wires.

In another specific embodiment of the present utility model, described conductive set group also includes a gland and some locks Fitting, the gland surrounding axially offers some gland interlocking holes and a pair of gland fairleads, the surrounding of described bushing one end If axially offering dry sleeve interlocking hole, described lock-connecting piece is each passed through gland interlocking hole and connects with corresponding bushing interlocking hole Connect, described gland is fixedly connected with bushing, described gland against and compressing on packing ring, a pair of described glands draw String holes is respectively used to be walked for the other end of two conductor wires.

In an also specific embodiment of the present utility model, described conductive set group also includes a pair of dead rings, A pair of described dead rings are respectively sleeved on the outer peripheral face at bushing two ends and bear against in the outside of a pair of conductive ring, this pair Dead ring it is same axially offer a pair for supply the dead ring fairlead walked of the two conductor wire other ends.

In an of the present utility model and then specific embodiment, dashed forward at the medium position of described insulation sleeve outer peripheral face The obstruct ring portion for having a ring-type is acted, described a pair of conductive ring is intercepted by the obstruct ring portion.

Of the present utility model more and in a specific embodiment, one end of described bushing is constituted a ring flange, Described bushing interlocking hole and bushing fairlead is all disposed within the axial direction of ring flange, and the afterbody of the bushing is provided with a limit Be fixed on bushing for insulation sleeve and dead ring by nut processed, described ring flange and limitation nut.

It is of the present utility model and and then a specific embodiment in, a fixed seat is also arranged with described main shaft, The fixed seat is fixedly connected with carbon brush ring seat, and an air blowing joint is provided with the gas hole of described carbon brush ring seat, and the air blowing connects Head with external air source for being connected.

Include a graphite rod, a carbon in carbon brush part of the present utility model and more and in a specific embodiment, described Brush joint and a spring, described carbon brush joint screw thread are connected in the carbon brush accommodating hole of carbon brush ring seat, and described graphite rod sets Put in carbon brush joint, its one end is contacted with conducting ring, the other end is connected with the power lead in the external world, and described spring equally sets Put in carbon brush joint, its two ends is born against between graphite rod and carbon brush joint, described graphite rod is pressed against conduction On ring.

Of the present utility model more and then in a specific embodiment, described gas hole and a pair of carbon brush accommodating holes point Cloth is in the both sides of carbon brush ring seat radial direction.

The utility model is due to using after said structure, having the advantage that：Power supply set group feeding source of the gas can be led to Source of the gas is crossed to clean the carbon distribution between carbon brush part and conducting ring, so that short-circuit power-off can be avoided, while by source of the gas to carbon Brush part is cooled down with conducting ring, a problem that to avoid temperature from raising, the conductance that causes is reduced.

Brief description of the drawings

Fig. 1 is the stereochemical structure exploded view of the embodiment of the utility model one.

Fig. 2 is the stereochemical structure installation diagram of Fig. 1 embodiments.

Fig. 3 is the side partial sectional view of Fig. 1 embodiments.

In figure：10. main shaft, 11. spindle rods, 111. threading holes, 112. fairleads, 113. main shaft conductive junction points, 12 shaft couplings Device, 13. fixed seats, 14 collar bushes；20. conductive set groups, 21. bushings, 210. ring flanges, 211. bushing interlocking holes, 212. bushings Fairlead, 22. insulation sleeves, 221. insulation sleeve fairleads, 222. intercept ring portion, 23. conducting rings, 24. dead rings, 241. dead rings Fairlead, 25. packing rings, 26 glands, 261 gland interlocking holes, 262 gland fairleads, 27. lock-connecting pieces, 28. limitation nuts, 29 Conductor wire；30. power supply set groups, 31. carbon brush ring seats, 311. carbon brush accommodating holes, 312. gas holes, 32. carbon brush parts, 321. graphite Rod, 322. carbon brush joints, 323. springs, 324. power leads, 33. air blowing joints.

Specific embodiment

Applicant will elaborate by way of example below, but the description to embodiment is not to this reality It is any according to only formal rather than substantial done by the utility model design with the limitation of new technique scheme Equivalent transformation is regarded as the technical solution of the utility model category.

Refer to Fig. 1 and combine Fig. 2 and Fig. 3, the utility model is related to a kind of electric rotary main shaft device of self-cleaning, including One main shaft 10, is socketed in the power supply set group 30 of conductive set group 20 and on main shaft 10.

Described main shaft 10 includes a spindle rod 11, a shaft coupling 12, a fixed seat 13 and a collar bush 14, described connection Axle device 12 is connected to one end of spindle rod 11（Head）On, for transmitting rotary power, and described shaft coupling 12 and offer The motor connection of power output is rotated with drive shaft bar 11, and described collar bush 14 is set in the other end of spindle rod 11（Tail Portion）On, and described conductive set group 20 is then set on spindle rod 11, wherein, described spindle rod 11 is connected with shaft coupling 12 The radial direction of one end offers a pair of threading holes 111, and a pair of lead wires hole 112 is further opened with the axial both sides of spindle rod 11, described Fairlead 112 connected with corresponding threading hole 111 respectively, the other end of the spindle rod 11 radial direction have a pair of main shafts lead Electric contact 113, described fixed seat 13 is fixedly connected on the body at the place of main shaft 10.Described main shaft 10 can serve as any The main shaft of processing machine, such as drilling machine, milling machine, grinding machine, lathe, the main shaft of gantry processor machine, body refer to the machine of processing machine Body.

Described conductive set group 20 includes a bushing 21, an insulation sleeve 22, a pair of conductive ring 23, a pair of dead rings 24, Packing ring 25, a gland 26, the limitation conductor wire 29 of nut 28 and two of some lock-connecting pieces 27, described one end of bushing 21（Head Portion）Composition has a ring flange 210, if the surrounding in the ring flange 210 axially offers dry sleeve interlocking hole 211 and a pair of bushings Fairlead 212；Described insulation sleeve 22 is set on the outer peripheral face at the middle part of bushing 21, and the axial direction of described insulation sleeve 22 offers A pair of insulation sleeve fairleads 221, its outer peripheral face medium position projection have an obstruct ring portion 222；23 points of described a pair of conductive ring It is not set on the outer peripheral face at the two ends of insulation sleeve 22 and is intercepted by obstruct ring portion 222 and keep certain spacing；Described The axial direction of a pair of dead rings 24 offers a pair of dead ring fairleads 241 respectively, and this pair of dead ring 24 is set in the outer of bushing 21 On side face and bear against in the outside of a pair of conductive ring 23, and a wherein dead ring 24 of a pair of dead rings is resisted against ring On flange 210；Described packing ring 25 is embedded on the inner peripheral surface with the one end of ring flange 210 of bushing 21, described gland 26 are axially offering some gland interlocking holes 261 and a pair of gland fairleads 262；Described lock-connecting piece 27 is bolt, some The bushing interlocking hole 211 corresponding with bushing 21 after through corresponding gland interlocking hole 261 on gland 26 of lock-connecting piece 27 connects, Gland 26 is set to abut and fixed that described limitation nut 29 is threaded in the other end of bushing 21 with packing ring 25（Tail Portion）And be resisted against on a pair of wherein another dead rings 24 of dead ring, with prevent insulation sleeve 22, conducting ring 23 and dead ring 24 from Depart from bushing 21；One end of two described conductor wires 29 is fixed with a pair of conductive ring 23 respectively（Welding）, the other end then successively From a pair of gland leads after through a pair of insulation sleeve fairleads 221, a pair of dead ring fairleads 241, a pair of bushing fairleads 212 Passed in hole 262.

Bushing 21 in described conductive set group 20 is set on spindle rod 11, and gland 26 is compressed by lock-connecting piece 27, is made Packing ring 25 deforms, and then makes the packing secure bond of conductive set group 20 on spindle rod 11, is passed from a pair of gland fairleads 262 The other end of two conductor wires 29 sequentially pass through again after the threading hole 111 and fairlead 112 of corresponding position on spindle rod 11 point It is not connected with a pair of main shaft conductive junction points 113 on spindle rod 11.

Described power supply set group 30 includes a carbon brush ring seat 31, a pair of air blowing joints 33 of carbon brush part 32 and, described carbon Brush ring seat 31 is set in outside conductive sleeve group 20 by middle axis hole and is fixedly connected with fixed seat 13, described carbon brush ring seat Gap is remained between 31 and conductive set group 20, a pair of carbon brush is radially offered on the periphery of the carbon brush ring seat 31 and is held The gas hole 312 of hole 311 and is put, described gas hole 312 and a pair of carbon brush accommodating holes 311 is distributed in the radial direction of carbon brush ring seat 31 Both sides and connect with the axis hole in the middle of carbon brush ring seat 31 respectively, a pair of described carbon brush parts 32 are located in a pair of carbon brush accommodating holes In 311 and its end is in contact with a pair of conductive ring 23 in conductive set group 20 respectively, and external power is led by carbon brush part 32 Enter onto conducting ring 32, described air blowing joint 33 be plugged on the gas hole 312 of carbon brush ring seat 31 and its outside port with Source of the gas is connected.

Above is a kind of each part of the electric live spindle structure of self-cleaning that an embodiment of the present utility model is provided With the introduction of assembling structure, the following is its handling characteristics explanation.

Please continue to refer to Fig. 1 and Fig. 2 and Fig. 3 is combined, the air blowing joint 33 of described power supply set group 30 is by the source of the gas of outside It is passed through in the gap between carbon brush ring seat 31 and conductive set group 20, the carbon distribution on carbon brush part 32 and conducting ring 23 is blown off, and The carbon dust for being blown off sheds in gap again between carbon brush ring seat 31 and conductive set group 20.In this way, can not only be covered by powering The sources of the gas cleaning carbon distributions of the input of group 30, to avoid short-circuit power-off, it is also possible to by the source of the gas that is blown into carbon brush part 32 and conducting ring 23 cool down, the conductance reduction caused with avoiding temperature from raising.

In addition, in said structure, the carbon brush part 32 of the power supply set group 30 respectively includes a graphite rod 321, a carbon brush joint 322 and a spring 323, described carbon brush joint 322 is threaded in the carbon brush accommodating hole 311 of carbon brush ring seat 31, described Graphite rod 321 is arranged in carbon brush joint 322, and its one end is contacted with conducting ring 23, the other end connects with the power lead 324 in the external world Connect, described spring 323 is similarly disposed in carbon brush joint 322, its two ends is born against in graphite rod 321 and carbon brush joint Between 322, described graphite rod 321 is set to be pressed against on conducting ring 23.External power imports graphite rod by power lead 324 In 321, then electric power is imported by conducting ring 23 by the contact with conducting ring 23 of graphite rod 321, described conducting ring 23 is by leading Be sent to electric power on the main shaft conductive junction point 113 of main shaft 10 by electric wire 29.

Claims

1. the electric rotary main shaft device of a kind of self-cleaning, it is characterised in that：Including a main shaft (10)；One is socketed on main shaft (10) Conductive set group (20), the conductive set group (20) is with a pair of conductive ring (23)；One power supply set group (30), it has a carbon brush ring Seat (31) and a pair of carbon brush parts (32), described carbon brush ring seat (31) conductive sleeve group (20) is set in outward by the axis hole of centre and Gap is remained between the two, and a pair of carbon brush accommodating holes are radially offered on the periphery of the carbon brush ring seat (31) (311) and a gas hole (312), described gas hole (312) and a pair of carbon brush accommodating holes (311) respectively with carbon brush ring seat (31) Middle axis hole is connected, and a pair of described carbon brush parts (32) are located in a pair of carbon brush accommodating holes (311) and its end part It is not in contact with a pair of conductive ring (23) in conductive set group (20), is imported into external power by described carbon brush part (32) On electric ring (23), outside gas is incorporated between carbon brush part (32) and conducting ring (23) by described gas hole (312).

2. the electric rotary main shaft device of self-cleaning according to claim 1, it is characterised in that described main shaft (10) includes One spindle rod (11), a shaft coupling (12) and a collar bush (14), described shaft coupling (12) are connected to the one of spindle rod (11) On end, for transmitting rotary power and drive shaft bar (11) rotation, described collar bush (14) is set in spindle rod (11) On the other end, and described conductive set group (20) is then set on spindle rod (11), wherein, described spindle rod (11) and shaft coupling The radial direction of device (12) connection one end offers a pair of threading holes (111), is further opened with a pair in the axial both sides of spindle rod (11) Fairlead (112), described fairlead (112) is connected with corresponding threading hole (111) respectively, another in the spindle rod (11) The radial direction at end has a pair of main shaft conductive junction points (113), and described conductive set group (20) is with two conductor wires (29), two conductor wires (29) one end electrically connects with a pair of conductive ring (23) respectively and the other end is each passed through the threading hole (111) of corresponding position Electrically connected with a pair of main shaft conductive junction points (113) afterwards with fairlead (112).

3. the electric rotary main shaft device of self-cleaning according to claim 1, it is characterised in that described conductive set group (20) Also include a bushing (21), an insulation sleeve (22) and a packing ring (25), described insulation sleeve (22) is set in bushing (21) On outer peripheral face, described a pair of conductive ring (23) is respectively sleeved on the outer peripheral face of insulation sleeve (22) and a spaced spacing From, described packing ring (25) against and be embedded on the inner peripheral surface of bushing (21) one end, described bushing (21) is set in master On axostylus axostyle (11), and both bushing (21) and spindle rod (11) structures are made to be closely connected by described packing ring (25).

4. the electric rotary main shaft device of self-cleaning according to claim 3, it is characterised in that described bushing (21) is in axle To a pair of bushing fairleads (212) are offered, described insulation sleeve (22) equally in axial direction and corresponds to a pair of bushing leads Offer a pair of insulation sleeve fairleads (221) at the position in hole (212), a pair of described insulation sleeve fairleads (221) and a pair Bushing fairlead (212) is respectively used to be walked for the other end of two conductor wires (29).

5. the electric rotary main shaft device of self-cleaning according to claim 3, it is characterised in that described conductive set group (20) Also include a gland (26) and some lock-connecting pieces (27), gland (26) surrounding axially offers some gland interlocking holes (261) With a pair of gland fairleads (262), described bushing (21) if the surrounding of one end axially offers dry sleeve interlocking hole (211), Described lock-connecting piece (27) is each passed through gland interlocking hole (261) and is connected with corresponding bushing interlocking hole (211), makes described pressure Lid (26) is fixedly connected with bushing (21), described gland (26) against and compressing on packing ring (25), described a pair are pressed Lid fairlead (262) is respectively used to be walked for the other end of two conductor wires (29).

6. the electric rotary main shaft device of self-cleaning according to claim 3, it is characterised in that described conductive set group (20) Also include a pair of dead rings (24), described a pair of dead rings (24) are respectively sleeved on the outer peripheral face at bushing (21) two ends and divide Be not resisted against the outside of a pair of conductive ring (23), this pair of dead ring (24) it is same axially offer a pair for supply two conductor wires (29) the dead ring fairlead (241) that the other end is walked.

7. the electric rotary main shaft device of self-cleaning according to claim 3, it is characterised in that described insulation sleeve (22) is outward Projection has the obstruct ring portion (222) of a ring-type at the medium position of side face, and described a pair of conductive ring (23) is by the obstruct ring portion (222) intercepted.

8. the electric rotary main shaft device of self-cleaning according to claim 3, it is characterised in that the one of described bushing (21) End composition has a ring flange (210), and the afterbody of the bushing (21) is provided with a limitation nut (28).

9. the electric rotary main shaft device of self-cleaning according to claim 1, it is characterised in that on described main shaft (10) also A fixed seat (13) is arranged with, the fixed seat (13) is fixedly connected with carbon brush ring seat (31), described carbon brush ring seat (31) are blown An air blowing joint (33) is installed in stomata (312), the air blowing joint (33) with external air source for being connected.

10. the electric rotary main shaft device of self-cleaning according to claim 1, it is characterised in that described carbon brush part (32) bag A graphite rod (321), a carbon brush joint (322) and a spring (323) are included, described carbon brush joint (322) is threaded in carbon In the carbon brush accommodating hole (311) of brush ring seat (31), described graphite rod (321) is arranged in carbon brush joint (322), its one end with Conducting ring (23) contact, the other end are connected with the power lead (324) in the external world, and described spring (323) is similarly disposed at carbon brush In joint (322), its two ends is born against between graphite rod (321) and carbon brush joint (322), makes described graphite rod (321) it is pressed against on conducting ring (23).