CN217668256U

CN217668256U - Cooling device for electric spindle rotary joint

Info

Publication number: CN217668256U
Application number: CN202221421369.6U
Authority: CN
Inventors: 张卫军; 郭瑞昌; 张敬玉
Original assignee: Luoyang Fayin Electromechanical Technology Co ltd
Current assignee: Luoyang Fayin Electromechanical Technology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-28
Anticipated expiration: 2032-06-08

Abstract

The utility model discloses an electricity main shaft rotary joint cooling device relates to electricity main shaft technical field. This electricity main shaft rotary joint cooling device, which comprises a housin, the surface of casing is provided with cooling device, the internal rotation of casing is connected with the rotor, the inside fixed mounting of casing has the stator, the stator activity cup joints on the surface of rotor, this electricity main shaft rotary joint cooling device, the push rod moves down, promote aviation baffle and back shaft and rotate, and then make torsion spring take place deformation, when the eccentric wheel is not when extruding the push rod, the push rod resets through the spring, the aviation baffle resets through torsion spring, and then make the aviation baffle continuous inside swing at the supply-air outlet, and then lead to the cold air through the supply-air outlet is inside, and then make the inside of even dispersion of cold air ability casing, improve the effect to the internal cooling of casing, the life of device has been guaranteed to the at utmost, reduce the influence to the interference and the high temperature of the inside spare part of casing.

Description

Cooling device for electric spindle rotary joint

Technical Field

The utility model relates to an electricity main shaft technical field, in particular to electricity main shaft rotary joint cooling device.

Background

The lubrication of the electric spindle generally adopts timing and quantitative oil-gas lubrication; grease lubrication may also be used, but the corresponding speed is compromised. The timing is to inject oil once at regular time intervals. The metering is to precisely control the amount of lubricating oil each time through a device called a metering valve. And the oil-air lubrication means that lubricating oil is blown into the ceramic bearing under the carrying of compressed air. The oil quantity control is very important and too little, so that the lubricating effect cannot be achieved; too much, heat is generated by the resistance of oil when the bearing rotates at high speed, and the cooling device: in order to dissipate heat as quickly as possible from an electric spindle operating at high speed, the outer wall of the electric spindle is usually supplied with a circulating coolant, and the function of the cooling device is to maintain the temperature of the coolant.

When the main shaft is used, an electric main shaft rotary joint cooling device with the application number of 201922007467.X in a published patent is needed to be used, the device mainly solves the problem that the traditional cooling mode is mainly that a water inlet and outlet channel is limited by the wall thickness of a shell of the main shaft, the sectional area of the water inlet and outlet channel is too small, so that the flow rate of cooling water is smaller, and the cooling effect is unsatisfactory.

However refrigerate the air through the semiconductor refrigeration piece in this patent, later induced air machine send the produced cold air of semiconductor refrigeration piece to the cavity in the casing through annular air intake and carry out cooling to electric main shaft device, nevertheless because the wind receives the restriction of annular supply-air outlet when carrying the inside of casing with the cold air through annular air intake, and then make the cold air can not be fine carry out the cold air to the casing inside multi-angle evenly, and then cause the cooling effect not good, influence later stage device result of use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least, provide electricity main shaft rotary joint cooling device, can solve and carry the inside of casing through annular air intake when cold air because the wind receives the restriction of annular supply-air outlet, and then make cold air can not be fine carry out the cold air of multi-angle uniform transport to casing inside, and then cause the not good problem of cooling effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electricity main shaft rotary joint cooling device, includes the casing, and the surface of casing is provided with cooling device, and the internal rotation of casing is connected with the rotor, and the inside fixed mounting of casing has the stator, and the stator activity cup joints on the rotor on the surface, the inside fixed mounting of casing has the back lid, and the rotor rotates and runs through the back lid, and the fixed surface of rotor installs first flabellum, and the supply-air outlet has been seted up on the surface of back lid, and the inside of supply-air outlet is provided with air ducting, and the inside of back lid is provided with actuating mechanism.

Preferably, the air guiding device comprises a supporting shaft rotatably connected inside the air supply outlet, an air deflector is fixedly sleeved on the surface of the supporting shaft, the air deflector is movably connected inside the air supply outlet, and a torsion spring is movably sleeved on the surface of the supporting shaft.

Preferably, one end of the torsion spring, which is close to the air deflector, is fixedly connected with the surface of the air deflector, and one end of the torsion spring, which is far away from the air deflector, is fixedly connected with the inner wall of the air supply opening.

Preferably, the driving mechanism comprises a rotating shaft rotatably connected inside the rear cover, the rotating shaft rotatably penetrates through the rear cover and extends to the outside of the rear cover, one end of the rotating shaft, which is close to the first fan blade, is fixedly provided with a second fan blade, one end of the rotating shaft, which extends to the inside of the rear cover, is fixedly provided with an eccentric wheel, the eccentric wheel is rotatably connected inside the rear cover, and the rotating shaft is fixedly connected at an eccentric position of the eccentric wheel.

Preferably, a push rod is connected to the inside of the rear cover in a sliding manner, one end of the push rod, which is close to the eccentric wheel, is in contact with the surface of the eccentric wheel, a spring is movably sleeved on the surface of the push rod, the upper end of the spring is fixedly connected with the surface of the push rod, the lower end of the spring is fixedly connected with the inner wall of the rear cover, and the lower end of the push rod is in contact with the surface of the air deflector.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) This electricity main shaft rotary joint cooling device, the push rod moves down, promote aviation baffle and back shaft and rotate, and then make torsion spring take place deformation, when the eccentric wheel is not when the extrusion push rod, the push rod resets through the spring, the aviation baffle resets through torsion spring, and then make the aviation baffle be continuous in the inside swing of supply-air outlet, and then lead to the cold air through the supply-air outlet is inside, and then make the inside of even dispersion of cold air ability to the casing, improve the inside refrigerated effect to the casing, the life of device has been guaranteed to the at utmost, reduce the influence of interference and high temperature to the inside spare part of casing.

(2) This electricity main shaft rotary joint cooling device, make the rotor rotatory, thereby it rotates to drive first flabellum, make cooling device work, the semiconductor refrigeration piece refrigerates the air, later first flabellum sends the produced cold air of semiconductor refrigeration piece to the cavity in the casing in through the supply-air outlet and carries out cooling to electric main shaft device, the convenience is cooled off to electric main shaft device, and then the use of the device of being convenient for, improve the refrigerated effect to electric main shaft device, reduce the influence of electric main shaft device high temperature to the inside spare part of device, and the service life of the device is prolonged.

(3) This electricity main shaft rotary joint cooling device because the shape of supply-air outlet is for leaking hopper-shaped, when cold air entered into the inside in supply-air outlet, and then made cold air outdiffusion, improved cold air dispersion area, guaranteed to the at utmost to the inside area of carrying cold air of casing, improved the cooling effect.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of a cooling device for a rotating joint of an electric spindle according to the present invention;

fig. 2 is an internal schematic view of the housing of the present invention;

FIG. 3 is an enlarged schematic view of the present invention at A in FIG. 2;

fig. 4 is an internal schematic view of the housing of the present invention;

fig. 5 is a schematic view of the rear cover of the present invention;

fig. 6 is an internal schematic view of the air supply opening of the present invention.

Reference numerals are as follows: 1. a housing; 2. a cooling device; 3. a stator; 4. a rotor; 5. a rear cover; 6. a first fan blade; 7. an air supply outlet; 8. a second fan blade; 9. a rotating shaft; 10. an air deflector; 11. a torsion spring; 12. a support shaft; 13. a push rod; 14. a spring; 15. an eccentric wheel.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-6, the present invention provides a technical solution: the utility model provides an electricity main shaft rotary joint cooling device, includes casing 1, and the surface of casing 1 is provided with cooling device 2, and the internal rotation of casing 1 is connected with rotor 4, and the inside fixed mounting of casing 1 has stator 3, and stator 3 activity cup joints rotor 4 on the surface, and the inside fixed mounting of casing 1 has back lid 5, and rotor 4 rotates and runs through back lid 5, and the fixed surface of rotor 4 installs first flabellum 6, and supply-air outlet 7 has been seted up on the surface of back lid 5.

The shape of supply-air outlet 7 is for leaking hopper-shaped, because the shape of supply-air outlet 7 is for leaking hopper-shaped, when cold air got into the inside of air feed opening 7, and then made cold air outdiffusion, improved cold air dispersion area, guaranteed to the at utmost to the inside area of carrying cold air of casing 1, improved the cooling effect.

Electricity main shaft device work, make rotor 4 rotatory, thereby it is rotatory to drive first flabellum 6, make cooling device 2 work, the semiconductor refrigeration piece refrigerates the air, later first flabellum 6 carries out cooling to electricity main shaft device in sending the produced cold air of semiconductor refrigeration piece to the cavity in casing 1 through supply-air outlet 7, the convenience cools off electricity main shaft device, and then the use of the device of being convenient for, improve the refrigerated effect to electricity main shaft device, reduce the influence of electricity main shaft device high temperature to the inside spare part of device, the life of the device is prolonged.

Example two;

referring to fig. 1-6, in the first embodiment, an air guiding device is disposed inside the air supply opening 7, the air guiding device includes a supporting shaft 12 rotatably connected inside the air supply opening 7, an air guiding plate 10 is fixedly sleeved on a surface of the supporting shaft 12, the air guiding plate 10 is movably connected inside the air supply opening 7, a torsion spring 11 is movably sleeved on a surface of the supporting shaft 12, one end of the torsion spring 11 close to the air guiding plate 10 is fixedly connected to a surface of the air guiding plate 10, one end of the torsion spring 11 far away from the air guiding plate 10 is fixedly connected to an inner wall of the air supply opening 7, a driving mechanism is disposed inside the rear cover 5, the driving mechanism includes a rotating shaft 9 rotatably connected inside the rear cover 5, the rotating shaft 9 rotatably penetrates through the rear cover 5 and extends to an outer portion of the rear cover 5, a second fan blade 8 is fixedly mounted at one end of the rotating shaft 9 close to the first fan blade 6, one end of the rotating shaft 9 extending to the inside the rear cover 5 is fixedly mounted with an eccentric wheel 15, the eccentric wheel 15 is rotatably connected inside the rear cover 5, a push rod 13 is slidably connected to an inner portion of the rear cover 5, one end of the push rod 13 is in contact with a surface of the eccentric wheel 15, one end of the push rod 13 close to the eccentric wheel 15, a surface of the push rod 13 is in contact with a surface of the eccentric wheel 15, a surface of the push rod 13, a surface of the push rod 14 fixed spring 14 is connected to the push rod 13, and a lower end of the push rod 14 is connected to the push rod 14 of the spring 14, and a lower end of the push rod 13 is connected to the push rod 14, and a lower end of the spring 14 fixed spring 14 is connected to the rear cover 10.

When the first fan blade 6 rotates, the generated wind power drives the second fan blade 8 to rotate, so that the rotating shaft 9 rotates, the rotating shaft 9 rotates inside the rear cover 5, so that the eccentric wheel 15 rotates, because the rotating shaft 9 is fixed at the eccentric position of the eccentric wheel 15, so that when the rotating shaft 9 rotates, the push rod 13 is extruded, so that the spring 14 contracts, so that the push rod 13 moves downwards, the air guide plate 10 and the support shaft 12 are pushed to rotate, so that the torsion spring 11 deforms, when the eccentric wheel 15 does not extrude the push rod 13, the push rod 13 resets through the spring 14, the air guide plate 10 resets through the torsion spring 11, so that the air guide plate 10 continuously swings inside the air supply opening 7, so that cold air passing through the inside of the air supply opening 7 is guided, so that the cold air can be uniformly dispersed into the inside of the shell 1, the effect of cooling the inside of the shell 1 is improved, the service life of the device is ensured to the greatest extent, and the interference and the influence on the parts inside the shell 1 and the high temperature are reduced.

The working principle is as follows:

the electric spindle device works, so that the rotor 4 rotates to drive the first fan blade 6 to rotate, the cooling device 2 works, the semiconductor refrigerating sheet refrigerates air, and then the first fan blade 6 sends cold air generated by the semiconductor refrigerating sheet to a cavity in the shell 1 through the air supply opening 7 to cool the electric spindle device.

When the first fan blade 6 rotates, the generated wind power drives the second fan blade 8 to rotate, so that the rotating shaft 9 rotates, the rotating shaft 9 rotates inside the rear cover 5, so that the eccentric wheel 15 rotates, because the rotating shaft 9 is fixed at the eccentric position of the eccentric wheel 15, so that when the rotating shaft 9 rotates, the push rod 13 is extruded, so that the spring 14 contracts, so that the push rod 13 moves downwards, the air guide plate 10 and the support shaft 12 are pushed to rotate, so that the torsion spring 11 deforms, when the eccentric wheel 15 does not extrude the push rod 13, the push rod 13 resets through the spring 14, the air guide plate 10 resets through the torsion spring 11, so that the air guide plate 10 continuously swings inside the air supply opening 7, so that cold air passing through the inside of the air supply opening 7 is guided, and the cold air can be uniformly dispersed into the inside of the casing 1.

The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides an electricity main shaft rotary joint cooling device, includes casing (1), and the surface of casing (1) is provided with cooling device (2), and the internal rotation of casing (1) is connected with rotor (4), and the inside fixed mounting of casing (1) has stator (3), and stator (3) activity cup joints on the surface of rotor (4), its characterized in that: the novel fan is characterized in that a rear cover (5) is fixedly mounted inside the shell (1), the rotor (4) rotates to penetrate through the rear cover (5), a first fan blade (6) is fixedly mounted on the surface of the rotor (4), an air supply opening (7) is formed in the surface of the rear cover (5), an air guide device is arranged inside the air supply opening (7), and a driving mechanism is arranged inside the rear cover (5).

2. A cooling apparatus for an electric spindle rotary joint according to claim 1, wherein: the shape of the air supply outlet (7) is funnel-shaped.

3. A cooling apparatus for an electric spindle rotary joint according to claim 2, wherein: the air guide device comprises a support shaft (12) which is rotatably connected inside the air supply outlet (7), an air guide plate (10) is fixedly sleeved on the surface of the support shaft (12), the air guide plate (10) is movably connected inside the air supply outlet (7), and a torsion spring (11) is movably sleeved on the surface of the support shaft (12).

4. A cooling apparatus for an electric spindle rotary joint according to claim 3, wherein: one end of the torsion spring (11) close to the air deflector (10) is fixedly connected with the surface of the air deflector (10), and one end of the torsion spring (11) far away from the air deflector (10) is fixedly connected with the inner wall of the air supply outlet (7).

5. An electric spindle rotary joint cooling device according to claim 4, wherein: actuating mechanism is including rotating rotation axis (9) of connecting in back lid (5) inside, rotation axis (9) are rotated and are run through back lid (5) and extend to the outside of back lid (5), one end fixed mounting that rotation axis (9) are close to first flabellum (6) has second flabellum (8), rotation axis (9) extend to back lid (5) inside one end fixed mounting have eccentric wheel (15), eccentric wheel (15) are connected in the internal rotation of back lid (5), rotation axis (9) fixed connection is in the eccentric department of eccentric wheel (15).

6. An electric spindle rotary joint cooling device as set forth in claim 5, wherein: the inner sliding connection of the rear cover (5) is provided with a push rod (13), one end, close to the eccentric wheel (15), of the push rod (13) is in surface contact with the eccentric wheel (15), a spring (14) is movably sleeved on the surface of the push rod (13), the upper end of the spring (14) is fixedly connected with the surface of the push rod (13), the lower end of the spring (14) is fixedly connected with the inner wall of the rear cover (5), and the lower end of the push rod (13) is in surface contact with the air deflector (10).