CN201156690Y

CN201156690Y - Enclosed non-fan main-shaft motor

Info

Publication number: CN201156690Y
Application number: CNU2008200069064U
Authority: CN
Inventors: 朱明聪
Original assignee: AIDELI SCRENCE AND TECHNOLOGY Co Ltd
Current assignee: AIDELI SCRENCE AND TECHNOLOGY Co Ltd; Adlee Powertronic Co Ltd
Priority date: 2008-01-31
Filing date: 2008-01-31
Publication date: 2008-11-26
Anticipated expiration: 2018-01-31

Abstract

The utility model discloses a closed fanless main shaft motor. A plurality of heat radiation fins are alternatively and convexly arranged at the surface of a back cover used for closing at the back end of the shell of the closed motor, so that the back cover can dissipate heat source generated by the working of the motor through the heat radiation fins so as to replace the function of the fan of the known main shaft motor and to avoid the noise of the fan and dust from rising. Besides, as a fan is not needed any more, the applications of the components like a fan cover is not necessary any more, thereby achieving the competing advantages of simple structure and low cost of the main shaft motor used in a surface grinding machine.

Description

Closed no fan Spindle Motor

Technical field

The utility model is relevant a kind of surface grinding machine Spindle Motor, refers to that especially a kind of structure simplifies, assembles quick, has the closed no fan Spindle Motor of low noise, environment protection health kenel again concurrently.

Background technology

Fig. 1 is to Figure 3 shows that known surface grinding machine Spindle Motor, one stator 2 mainly is set in motor case 1, knot one rotor 4 is worn by an axle center 3 again in stator 2 inside, 3 two ends, axle center are then by the bearing 7 of forward and backward lid 5,6 inboards of hermetic motor shell, make the axle center 3 that is subjected to rotor driven rotate more smooth and easy, and axle center 3 passes the bonnet end then in conjunction with the fan 8 of a heat transmission, again by the fan cover 9 that combines with motor case 1 rear end, with the fan that prevents that false touch is driven by the axle center, so be commercially available main shaft motor structure at present.

Though can reach the design effect of expection, there is the following anxious technical task that industry overcomes for the treatment of in above-mentioned known habitual surface grinding machine Spindle Motor overall construction design also:

The first, the heat energy of the rotor start of Spindle Motor generation, need to rely on the fan of bonnet outside combination, prevent that with the fan of rotor interlock motor from crossing thermal design, cost when having caused the fan utilization basically increases problem, the related utilization that causes the fan cover structure that prevents the false touch fan, thus the main shaft motor structure cost that surface grinding machine is used slowly can't reduce.

The second, hold, because Spindle Motor has increased the fan of heat transmission and two structures of fan cover of protection user, not only directly reflect the cost drawback, the member of increase has promoted groups such as Spindle Motor assembling and maintenance, has torn degree of difficulty open.

Three, provide rotor rotation bearing more smoothly, follow the inboard that traditional design all is positioned at protecgulum and bonnet, this kind design then can cause forward and backward lid to need repeatedly processing problems for the bearing binding site, and the processing precise degree can't more accurate disappearance.

Four, Spindle Motor is set up fan structure, can produce noise in the fan running process, this situation for quiet job space environmentalist, the disappearance that causes attentiveness to concentrate easily then.

Five, the Spindle Motor used of surface grinding machine, though there is forward and backward lid to be sealed, but bonnet is still run through with the design in conjunction with fan in the rear end, axle center, because of the surface grinding machine course of processing, cause workpiece to grind the trickle floating dust that produces easily, easy exhaust outlet by fan cover enters to be hoarded, the fan running process, also can blow, in air, cause floating dust to fly upward, cause the operating personnel to suck too much floating dust and unhealthful the processing floating dust.

The utility model content

The purpose of this utility model is to provide that a kind of structure is simplified, the closed no fan Spindle Motor of low noise.

Another purpose of the present utility model is to provide a kind of closed no fan Spindle Motor that the processing environment floating dust waves that can not quicken.

For achieving the above object, the utility model adopts following structure:

A kind of closed no fan Spindle Motor, mainly comprise a motor case, this runs through the hollow form motor case at two ends, before the mat sealing, the protecgulum of back open end and bonnet enclose structure and go out a holding part, this holding part then has been installed with a rotor and a stator, and before the motor case axis direction then is provided with consistent reaching, the axle center of bonnet and rotor, wherein, the motor case spaced surface convexes with several radiating fins, back exterior surface also is formed with the diffusing fin of heat of heat transmission, and the internal face centre axially protrudes out a ring body, and this ring body is communicated with an axis hole that can be installed with bearing, and this bonnet internal face then extends at interval and convexes with reinforced ribs.

The radiating fin of described back exterior surface and motor case radiating fin are corresponding position relation.

Described protecgulum inboard convexes with a default long convex extension part, and the protecgulum outer surface then is concaved with a storage tank towards the convex extension part direction and puts for bearing, by a bearing cap storage tank is sealed again.

The transversal section of described bonnet is a font, and reinforced ribs system is formed between ring body and internal face to extend at interval with radial mode one and is convexly equipped with.

By this, specifically represent through of the present utility model, feasible this closed no fan Spindle Motor, bonnet spaced surface in closed motor outer casing back sealing usefulness is convexly equipped with some radiating fins especially, make bonnet the thermal source row that the motor work done produces be loose by radiating fin, to replace the fan functionality of known Spindle Motor, avoid fan noise and floating dust to fly upward, related omission because of fan, also exempt the utilization of members such as fan cover, with reach surface grinding machine with main shaft motor structure simplify, competitive advantage with low cost.

Description of drawings

Fig. 1 is the structure explosive view of known Spindle Motor.

Fig. 2 is the combination schematic appearance of known Spindle Motor.

Fig. 3 is partly cut-away's schematic diagram of Fig. 2.

Fig. 4 is the structure explosive view of the utility model Spindle Motor.

Fig. 5 is the combination schematic appearance of the utility model Spindle Motor.

Fig. 6 is partly cut-away's schematic diagram of Fig. 5.

Fig. 7 A, 7B are the forward and reverse three-dimensional appearance schematic diagrames of the utility model Spindle Motor bonnet.

The primary clustering symbol description

10 motor cases, 101 radiating fins

12 platforms, 14 distributing boxs

16 protecgulums, 161 convex extension parts

162 axis holes, 164 storage tanks

166 bearing caps, 18 bonnets

181 ring bodies, 182 axis holes

183 radiating fins, 184 reinforced ribs

20 stators, 30 rotors

40 axle center A holding parts

B bearing C capping

Commonly use the construction package symbol description

1 motor case, 2 stators

3 axle center, 4 rotors

5 protecgulums, 6 bonnets

7 bearings, 8 fans

9 fan covers

Embodiment

The relevant a kind of closed no fan Spindle Motor of the utility model please cooperate with reference to Fig. 4 to shown in Figure 6, the closed no fan Spindle Motor that diagram is taken off, and it is as described below that optimum structure is implemented aspect, mainly comprises:

One motor case 10, two ends are the hollow metal housing of penetration state, motor case 10 surfaces that these central authorities are penetration state convex with several radiating fins 101 at interval along axis direction, default place, surface then is formed with a platform 12, for distributing box 14 interlockings (the non-emphasis of the present utility model of distributing box, and belong to known structure, so will not give unnecessary details); In addition, the forward and backward two ends that motor case 10 is opened are the protecgulum 16 and the sealing of bonnet 18 screw locks of a font respectively by a transversal section, make the inside of motor case 10 hollow forms form a holding part A;

One stator 20 for the copper metal line circle that twines, is to be installed with in the holding part A of motor case 10;

One rotor 30, but be incorporated into the shaft core position of stator 20 in relative stator forward and backward mode;

One axle center 40 is the axis direction along motor case 10, runs through forward and backward lid and is the interlock marriage relation with rotor; As for aforementioned components is the basic element of Spindle Motor, and non-core of the present utility model, and just detailed here connection relationship will not be given unnecessary details.

And main improvement of the present utility model is the protecgulum 16 and the bonnet 18 of motor case 10; relevant protecgulum 16 detailed ginsengs are shown in Figure 4; the protecgulum inboard convexes with a default long convex extension part 161; protecgulum 16 central authorities then offer the axis hole 162 that stretches through for the axle center; protecgulum 16 outer surfaces then are concaved with the storage tank 164 that connects axis hole 162 towards the convex extension part direction; 162 confessions of this axis hole, one bearing B puts; and mat bearing B connects axle center 40 and protecgulum 16; storage tank 164 is then sealed by interlocking one bearing cap 166, also has both the proofing dust and protecting effect of bearing B sealing.

Be locked in the bonnet 18 of motor case 10 rear ends as for lock member, shown in the ginseng of please knowing clearly Fig. 7 A, Fig. 7 B, wherein, transversal section is the bonnet 18 of a font, and the internal face centre axially protrudes out a ring body 181, and bonnet 18 central authorities then are communicated with the axis hole 182 of this ring body, also be installed with a bearing B in the axis hole 182, for the axle center 40 1 end combinations that axially stretch through, axis hole 182 is sealed by bonnet 18 outsides by a capping C again, enter to prevent dust.

In addition, bonnet 18 outer surfaces are convexly equipped with several radiating fins 183 at interval, and the radiating fin 183 of bonnet 18 just is corresponding relation with the radiating fin 101 of motor case 10, make motor case 10 and bonnet 18 consistent aesthetic appearances; Moreover the ring body 181 of bonnet 18 inboards extends at interval in radial mode and to convex with several reinforced ribs 184, strengthens the structural rigidity of bonnet by this.

Enclosed non-fan main-shaft motor of the present utility model, through the structural design of front/rear cover novelty, the structure effect that expection reaches, hereby arrangement is discussed below:

1, rear exterior surface directly forms plurality of radiating fins, then can replace known Spindle Motor and loose The fan functionality of hot usefulness, the utilization that makes the Spindle Motor of surface grinding machine omit fan structure, related Exempt the utilization of two members of fan cover prevent the false touch fan, the main shaft horse of using for surface grinding machine Reaching the composition member, has been to simplify state most; The Spindle Motor of simplifying of structural detail, the one fan, Two members of fan cover omit, and the most direct benefited surface is cheaper Cost Competition advantage; Two The person, fan, two members of fan cover omit, and can help the assembling speed of Spindle Motor to promote, And the part dismounting when changing of follow-up spare part is ageing, for the friendship phase of Spindle Motor can be significantly The shortening of degree.

2, replace bonnet, the radiating fin of its outer surface and the heat radiation of motor case of fan functionality Fin is corresponding to be arranged, and the Spindle Motor outward appearance of having omitted fan and fan cover more coordinates, unanimously, complete Quan Buhui produces conventional construction, and the lofty modular design totally different because of motor case and rear end fan cover lacks Lose.

3, the utility model is used for the Spindle Motor of surface grinding machine, wherein wears knot to promote for the axle center The bearing of the bearing, particularly protecgulum of running smoothness is to see through protecgulum outside assembly inwardly in table In the storage tank that face is arranged with, this kind places the structural design in the protecgulum outside with bearing, possesses in fact Disposable processed edge, and the precision of single process after finishing, also far exceed known placing before The design that lid is inboard, the significantly lifting of precision then is reflected in the running smoothness aspect in axle center.

4, Spindle Motor of the present utility model omits fan design, so rear end, axle center and need not to run through Bonnet makes the whole closed state that forms of Spindle Motor, and nature can prevent that airborne floating dust from hoarding The thing that causes the axle center to rotate the smoothness deficiency takes place.

5, hold, enclosed Spindle Motor is owing to get by the radiating fin of rear exterior surface The fan cooling function that generation is known under fan omits without situation, significantly reduces the main shaft horse naturally The noise that reaches allows the operator can more be absorbed in work.

Claims

1, a kind of closed no fan Spindle Motor, mainly comprise a motor case, this runs through the hollow form motor case at two ends, before the sealing, the protecgulum of back open end and bonnet enclose structure and go out a holding part, this holding part then has been installed with a rotor and a stator, and before the motor case axis direction then is provided with consistent reaching, the axle center of bonnet and rotor, it is characterized in that: the motor case spaced surface convexes with several radiating fins, back exterior surface also is formed with the diffusing fin of heat of heat transmission, and the internal face centre axially protrudes out a ring body, this ring body connection one can be installed with the axis hole of bearing, and this bonnet internal face then interval extension convexes with reinforced ribs.

2, closed no fan Spindle Motor according to claim 1 is characterized in that: the radiating fin of described back exterior surface and motor case radiating fin are corresponding position relation.

3, closed no fan Spindle Motor according to claim 1, it is characterized in that: described protecgulum inboard convexes with a default long convex extension part, the protecgulum outer surface then is concaved with a storage tank for the bearing storing towards the convex extension part direction, and by a bearing cap storage tank is sealed.

4, closed no fan Spindle Motor according to claim 1, it is characterized in that: the transversal section of described bonnet is a font, and reinforced ribs is formed between ring body and internal face, and extends at interval with radial mode one and to be convexly equipped with.