CN206200694U - Brushless angle grinder - Google Patents

Abstract

The utility model provides a kind of brushless angle grinder, including：Housing unit, including head capsule and the casing that is connected with the head capsule, the head capsule are enclosed with the casing and are set as chamber, and work head is provided with the head capsule；Motor, is arranged in the chamber, and is set near work head；And reducing gear, it is arranged in the head capsule, and the reducing gear is located between the motor and work head, one end of the reducing gear is connected with the output end of the motor, and the other end of the reducing gear is connected with work head.Motor is located at the head position of housing unit, can so reduce the outgoing route of motor, reduces the loss of the moment of torsion of output.Meanwhile, reducing gear ensure that the output of Motor torque so that the output torque of brushless angle grinder of the present utility model is improved, and meets the use demand of operating personnel, and brushless angle grinder of the present utility model is simple and reliable for structure, and operating personnel can be easy to use.

Description

Brushless angle grinder

Technical field

The utility model is related to angle grinder equipment technical field, more particularly to a kind of brushless angle grinder.

Background technology

At present, the motor of angle grinder is generally disposed in casing, because the outside dimension of motor is generally bigger than normal, can then be increased Plus the size of casing, gripping of operating personnel when using angle grinder is not easy to, increase the physical demands of operating personnel.Meanwhile, Motor output moment of torsion it is less than normal, and then cause angle grinder act on workpiece upper active force it is small, influence angle grinder service behaviour, Influence the use of operating personnel.

Utility model content

Based on this, it is necessary to for the torque output of current motor problem less than normal, there is provided a kind of guarantee motor it is defeated Go out moment of torsion, ensure the brushless angle grinder of performance.

Above-mentioned purpose is achieved through the following technical solutions：

A kind of brushless angle grinder, including：

Housing unit, including head capsule and the casing that is connected with the head capsule, the head capsule enclose with the casing and are set as chamber, Work head is installed in the head capsule；

Motor, is arranged in the chamber, and is set near work head；And

Reducing gear, is arranged in the head capsule, and the reducing gear is located between the motor and work head, One end of the reducing gear is connected with the output end of the motor, and the other end of the reducing gear is with work head even Connect.

Wherein in one embodiment, the reducing gear is reduction gear of bevel gear structure；

The reduction gear of bevel gear structure includes the first bevel gear and the second bevel gear being meshed with first bevel gear；

First bevel gear is arranged in the output end of the motor, and second bevel gear is arranged at and the work On the output shaft of head connection.

Wherein in one embodiment, first bevel gear is gear with curved teeth with second bevel gear.

Wherein in one embodiment, the diameter of the diameter less than second bevel gear of first bevel gear.

Wherein in one embodiment, 0.2 times of the diameter of a diameter of described second bevel gear of first bevel gear ~0.8 times.

Wherein in one embodiment, the reducing gear is turbine and worm decelerator.

Wherein in one embodiment, the motor is located in the head capsule；

Or, the motor is located in the casing, and the motor is set adjacent to the head capsule.

Wherein in one embodiment, the motor is located at the junction of the casing and the head capsule.

Wherein in one embodiment, the brushless angle grinder also includes grip part, and the grip part is arranged at the machine On the outer peripheral face of shell；

There is predeterminable range between the grip part and the motor.

Wherein in one embodiment, the junction rounding off of the casing and the grip part.

The beneficial effects of the utility model are：

Brushless angle grinder of the present utility model, structure design advantages of simple, motor is arranged on head capsule and encloses what is be set as with casing In chamber, and work head of the motor on head capsule is set, i.e., motor is located at the head position of housing unit, can so subtract The outgoing route of few motor, reduces the loss of the moment of torsion of output.Meanwhile, reducing gear is also set up in head capsule, reducing gear can Reduce the output speed of motor, it is ensured that the output of Motor torque so that the output torque of brushless angle grinder of the present utility model is proposed Height, meets the use demand of operating personnel.The new brushless angle grinder of this practicality can effectively solve the problems, such as that moment of torsion is less than normal, carry The performance of brushless angle grinder high, and brushless angle grinder of the present utility model is simple and reliable for structure, can be easy to operating personnel Use.

Brief description of the drawings

Fig. 1 is the broken section structural representation of the brushless angle grinder of the embodiment of the utility model one；

Wherein：

Angle grinder that 100- is brushless；

110- housing units；

111- head capsules；

1111- output shafts；

1112- work heads；

112- casings；

120- motors；

130- reducing gears；

The bevel gears of 131- first；

The bevel gears of 132- second.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, by the following examples, and tie Accompanying drawing is closed, brushless angle grinder of the present utility model is further elaborated.It should be appreciated that specific reality described herein Apply example to be only used to explain the utility model, be not used to limit the utility model.

In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " axle To ", " radial direction ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship, be only for Be easy to description the utility model and simplify describe, rather than indicate imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " is meant that at least two, such as two It is individual, three etc., unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be Mechanically connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be two element internals connection or two interaction relationships of element, unless otherwise clearly restriction.For this For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.

Referring to Fig. 1, the utility model provides a kind of brushless angle grinder 100, angle grinder 100 that this is brushless can to metal or The operations such as the workpiece such as person's stone material are cut, ground, brushing and polishing.Also, the energy of brushless angle grinder 100 of the present utility model Enough avoid being conducted using carbon brush, save the energy resource consumption that carbon brush brings, be easy to use.Brushless angle grinder of the present utility model 100 can solve the problem that moment of torsion problem less than normal, improve the output torque of brushless angle grinder 100, it is ensured that the use of brushless angle grinder 100 Performance, meets the use demand of operating personnel.Meanwhile, the simple structure of brushless angle grinder 100 of the present utility model, operation can Lean on, be easy to use.

In the utility model, brushless angle grinder 100 includes housing unit 110, motor 120 and reducing gear 130.Motor 120 and reducing gear 130 be mounted in housing unit 110.Housing unit 110 is for playing protective action, so can The parts for avoiding operating personnel from being touched when using brushless angle grinder 100 inside housing unit 110, it is ensured that operating personnel's makes With safety, security performance is improved.Meanwhile, brushless angle grinder 100 can operationally produce the dust, housing unit 110 can to avoid Dust enters into the inside of housing unit 110, and then avoids dirt accumulation on the parts inside housing unit 110, extends The service life of brushless angle grinder 100, improves the operating efficiency of brushless angle grinder 100.Motor 120 is carried for brushless angle grinder 100 For power source, so that brushless angle grinder 100 can normally be run when working, it is ensured that the reliable operation of brushless angle grinder 100.Motor 120 are connected with reducing gear 130, and reducing gear 130 can reduce motor 120 while the output torque of motor 120 is ensured Rotating speed, then lower the output speed of brushless angle grinder 100, improve the service behaviour of brushless angle grinder 100.

Housing unit 110 includes head capsule 111 and the casing 112 being connected with head capsule 111, and head capsule 111 encloses with casing 112 and is set as Chamber, is provided with work first 1112 in head capsule 111.Output shaft 1111 is installed, work first 1112 is installed on output in head capsule 111 On axle 1111, output shaft 1111 can drive work first 1112 to rotate.So brushless angle grinder 100 operationally, output shaft 1111 drive first 1112 rotation of work is operated with realizing cutting, grinding and polishing of brushless angle grinder 100 etc..Brushless angle grinder 100 each parts are mounted in chamber, and protective action is played by head capsule 111 and casing 112.Meanwhile, head capsule 111 with The connection of casing 112 can also play sealing function, be prevented from part dust and enter into chamber, extend brushless angle grinder 100 Service life.

Motor 120 is arranged in chamber, and is set near work first 1112.That is, motor 120 is to be located at brushless angle The head of grinding machine 100.In such manner, it is possible to reduce the outgoing route of the moment of torsion of motor 120, it is to avoid moment of torsion loses in transmittance process, The output torque of motor 120 is improved, then ensures the output torque of brushless angle grinder 100.Reducing gear 130 is located at motor 120 Between work first 1112, and one end of reducing gear 130 is connected with the output end of motor 120, reducing gear 130 it is another End is connected with work first 1112.Reducing gear 130 can reduce the output speed of motor 120, while reducing gear 130 can increase Plus the output torque of motor 120, and then improve the output torque of brushless angle grinder 100, it is ensured that the usability of brushless angle grinder 100 Can, to meet the use demand of operating personnel.

Further, brushless angle grinder 100 also includes grip part, and grip part is arranged on the outer peripheral face of casing 112.Grip Portion for being easy to operating personnel to be gripped when using brushless angle grinder 100, in order to the operation of brushless angle grinder 100.Together When, there is predeterminable range between grip part and motor 120.I.e. motor 120 is arranged on the head of brushless angle grinder 100, to avoid Motor 120 is arranged in grip part.Because, motor 120 can operationally produce certain heat, and the heat can be by machine Shell 112 passes to grip part, and when hand-held grip part uses brushless angle grinder 100, heat can be delivered to operator to operating personnel On hand, comfort level when influence operating personnel use influences Consumer's Experience to member, and portion is easy to operating personnel gripping.Also, electricity When machine 120 is arranged on the head of brushless angle grinder 100, the circumferential size of grip part can be reduced, be easy to operating personnel for a long time Grip.

Yet further, casing 112 and the junction rounding off of grip part, can so reduce brushless angle grinder 100 Package size.The size of grip part can also be reduced simultaneously, and, grip part can move forward, headward movement, that is, operate The hand of personnel closer to work first 1112, can so reduce hand and the work first the distance between 1112 of operating personnel, And then the active force that operating personnel are subject to is reduced, improve Consumer's Experience.Certainly, the part of rounding off can also be grip part, Grip part closer to work first 1112 is so enabled to, is reduced when operating personnel grip brushless angle grinder 100 and the head that works The arm of force between 1112, lifts Consumer's Experience.

At present, the motor of angle grinder is generally disposed in casing, because the outside dimension of motor is generally bigger than normal, can then be increased Plus the size of casing, gripping of operating personnel when using angle grinder is not easy to, increase the physical demands of operating personnel.Meanwhile, Motor output moment of torsion it is less than normal, and then cause angle grinder act on workpiece upper active force it is small, influence angle grinder service behaviour, Influence the use of operating personnel.The motor 120 of brushless angle grinder 100 of the present utility model is arranged on head capsule 111 and is enclosed with casing 112 In the chamber being set as, and work of the motor 120 on head capsule 111 first 1112 is set, i.e., motor 120 is located at housing unit 110 head position, can so reduce the outgoing route of motor 120, reduce the loss of the moment of torsion of output.Meanwhile, head capsule 111 In also set up reducing gear 130, reducing gear 130 can reduce the output speed of motor 120, it is ensured that the moment of torsion of motor 120 it is defeated Go out so that the output torque of brushless angle grinder 100 of the present utility model is improved, and meets the use demand of operating personnel.This practicality New brushless angle grinder 100 can effectively solve the problems, such as that moment of torsion is less than normal, improve the performance of brushless angle grinder 100, and Brushless angle grinder 100 of the present utility model is simple and reliable for structure, and operating personnel can be easy to use.

Used as a kind of embodiment, in an embodiment of the present utility model, reducing gear 130 is reduction gear of bevel gear Structure.Brushless angle grinder 100 of the present utility model realizes the increase of the output torque of motor 120 by reduction gear of bevel gear structure, and then The output torque of brushless angle grinder 100 is improved, the use demand of operating personnel is met.Specifically, reduction gear of bevel gear structure includes First bevel gear 131 and the second bevel gear 132 being meshed with the first bevel gear 131.First bevel gear 131 is arranged at motor In 120 output end, the second bevel gear 132 is arranged on the output shaft 1111 being connected with work first 1112.First bevel gear 131 Axis with the second bevel gear 132 is mutually perpendicular to, and the first bevel gear 131 can realize motion after being engaged with the second bevel gear 132 The change in direction, and then realize the output of the moment of torsion of brushless angle grinder 100.

Further, the first bevel gear 131 and the second bevel gear 132 are gear with curved teeth.The first umbrella tooth can so be increased 131 ratios of the contact with the second bevel gear 132 of wheel, that is, contact ratio is increased, impact is alleviated, make the first bevel gear 131 Transmission with the second bevel gear 132 is more steady, noise when reducing operation, improves comfortable sexual experience.Meanwhile, it is gear with curved teeth First bevel gear 131 can also make load specific pressure drop low with the second bevel gear 132 so that the first bevel gear 131 and the second umbrella tooth The abrasion of wheel 132 is more uniform, accordingly increases the load capacity of the first bevel gear 131 and the second bevel gear 132, extends the first umbrella The service life of the bevel gear 132 of gear 131 and second.

Yet further, diameter of the diameter of the first bevel gear 131 less than the second bevel gear 132.Electricity can so be increased The output torque of machine 120, and then the output torque of brushless angle grinder 100 is improved, meet the use demand of operating personnel.More enter one Step ground, 0.2 times~0.8 times of the diameter of a diameter of second bevel gear 132 of the first bevel gear 131.So can effectively increase Plus the output torque of motor 120, to improve the output torque of brushless angle grinder 100.

Certainly, in other embodiment of the present utility model, reducing gear 130 can also be turbine and worm decelerator. Turbine and worm decelerator can also realize that the direction of the output campaign of motor 120 changes so that the motion of motor 120 can be passed Pass work first 1112, it is ensured that the service behaviour of brushless angle grinder 100.

Used as a kind of embodiment, in an embodiment of the present utility model, motor 120 is located in head capsule 111.This Sample can reduce the path of the output torque of motor 120, reduce loss.In other embodiment of the present utility model, motor 120 In casing 112, and motor 120 is set adjacent to head capsule 111.Certainly, motor 120 is located at the connection of casing 112 and head capsule 111 Place.As long as that is, the position of motor 120 can meet use requirement in not being located at grip part.It is of the present utility model brushless Angle grinder 100 by by the position of motor 120 it is preposition and coordinate reducing gear 130 come solve the problems, such as output moment of torsion it is small, carry The output torque of brushless angle grinder 100 high, meets the use demand of operating personnel.

Used as a kind of embodiment, brushless angle grinder 100 also includes fan, and fan is arranged in casing 112.Namely Say, the fan of brushless angle grinder 100 of the present utility model is not arranged in head capsule 111, and is provided in casing 112.Such as Fruit fan is arranged in head capsule 111, and because fan has certain width, such fan can increase the axially wide of head capsule 111 Degree, then increases the overall dimensions of head capsule 111.Brushless angle grinder 100 of the present utility model is the axial dimension of reduction head capsule 111 Fan is arranged in casing 112, can so reduce the overall dimensions of head capsule 111, then reduce package size.Meanwhile, by Reduce in the axial dimension of head capsule 111, the work first 1112 of corresponding casing 112 closer to head capsule 111 is set, and then causes machine Grip part on shell 112, closer to work first 1112, so enables to the position of grip part for current angle grinder Reach is put, then reduces grip part and work first the distance between 1112, during reduction operating personnel's brushless angle grinder 100 of gripping The arm of force, is easy to operating personnel to grip brushless angle grinder 100 so that grip more comfortable, the man-machine experience of lifting.

Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed, But therefore can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that common for this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. a kind of brushless angle grinder, it is characterised in that including：

Housing unit, including head capsule and the casing that is connected with the head capsule, the head capsule encloses with the casing and is set as chamber, described Work head is installed in head capsule；

Motor, is arranged in the chamber, and is set near work head；And

Reducing gear, is arranged in the head capsule, and the reducing gear is located between the motor and work head, described One end of reducing gear is connected with the output end of the motor, and the other end of the reducing gear is connected with work head.

2. brushless angle grinder according to claim 1, it is characterised in that the reducing gear is reduction gear of bevel gear structure；

The reduction gear of bevel gear structure includes the first bevel gear and the second bevel gear being meshed with first bevel gear；

First bevel gear is arranged in the output end of the motor, and second bevel gear is arranged at work head even On the output shaft for connecing.

3. brushless angle grinder according to claim 2, it is characterised in that first bevel gear and second bevel gear It is gear with curved teeth.

4. brushless angle grinder according to claim 2, it is characterised in that the diameter of first bevel gear is less than described the The diameter of two bevel gears.

5. brushless angle grinder according to claim 4, it is characterised in that a diameter of described the second of first bevel gear 0.2 times of the diameter of bevel gear~0.8 times.

6. brushless angle grinder according to claim 1, it is characterised in that the reducing gear is worm-gear speed reducer Structure.

7. the brushless angle grinder according to any one of claim 1 to 6, it is characterised in that the motor is located at the head capsule In；

Or, the motor is located in the casing, and the motor is set adjacent to the head capsule.

8. the brushless angle grinder according to any one of claim 1 to 6, it is characterised in that the motor is located at the casing With the junction of the head capsule.

9. the brushless angle grinder according to any one of claim 1 to 6, it is characterised in that also including grip part, the gripping Portion is arranged on the outer peripheral face of the casing；

There is predeterminable range between the grip part and the motor.

10. brushless angle grinder according to claim 9, it is characterised in that the junction of the casing and the grip part Rounding off.