CN211661971U

CN211661971U - Hand-held electric tool

Info

Publication number: CN211661971U
Application number: CN202020324152.8U
Authority: CN
Inventors: 王腾达; 冯海军; 谢云; 刘才文
Original assignee: Jinhua Skt Electric Machine Co ltd
Current assignee: Jinhua Skt Electric Machine Co ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-10-13
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a hand-held type electric tool machine, including output device, drive arrangement and be used for the handle portion of control, still including the transmission of connecting output device and drive arrangement, increase transmission between drive arrangement and output device, transmission is including assembling at the epaxial driving gear of drive arrangement's rotor and assembling at the epaxial driven gear of output device's instrument main shaft, and the driving gear is mutually supported with driven gear, utilize the gear to rotate, through the gear change, drive arrangement can adopt higher rotational speed and more powerful power device, in order to obtain the moment of torsion of bigger output, and the difficult motor stall that appears of instrument when using and burn out the quick-witted phenomenon, the cutting is more steady, probably obtain better user experience. The utility model discloses a switching device uses the structure of electric drill class switch with the auto-lock ejector pad, and the auto-lock ejector pad can both sides operation, convenient operation, the one-hand operation of controlling the hand of being convenient for.

Description

Hand-held electric tool

Technical Field

The utility model relates to a hand-held type machine tool technical field, more specifically say, relate to a hand-held type electric tool machine.

Background

The output device and the motor part are directly connected with a tool spindle of the hand-held machine tool and directly connected with a motor and directly driven by the motor.

The power, the rotating speed and the torque output by the tool of the existing tool directly driven by the motor are small, the tool is easy to block and rotate when in use, and the motor is easy to burn. Meanwhile, the switch device used by the product is mostly in an angle grinder type push block pull rod type switch structure, and is inconvenient to operate by a left hand and a right hand.

Therefore, how to solve the problems of the conventional handheld machine tool that the machine tool is easy to block and burn and the operation is inconvenient for a left hand or a right hand by a single hand is a problem to be solved urgently by the technical staff in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a hand-held electric tool machine, which has a larger torque output, is not easy to cause the phenomena of motor stalling and machine burning when in use, and is convenient for left-hand and right-hand single-hand operation.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a hand-held type electric tool machine, includes output device, drive arrangement and is used for the handle portion of control, still including connecting output device with drive arrangement's transmission, transmission is including assembling epaxial driving gear of drive arrangement's rotor and assembly are in output device's the main epaxial of instrument and with driving gear complex driven gear, handle portion is including the switch that is used for control to open and close, the switch is the electric drill switch, just but be connected with the removal of both sides in order to unblock on the electric drill switch the auto-lock ejector pad of switch.

Preferably, the drive means comprises a motor commutated by brushes.

Preferably, the motor is an internal rotor motor.

Preferably, the tool spindle has a rotational speed of more than 12000 revolutions per minute.

Preferably, the handle portion includes power supply means which is a rechargeable battery.

Preferably, the hand-held power tool has a weight of between 0.5kg and 1.0 kg.

The utility model provides a hand-held type electric tool machine, increase transmission between drive arrangement and output device, transmission is including assembling at the epaxial driving gear of drive arrangement's rotor and assembling at output device's the epaxial driven gear of instrument, and the driving gear is mutually supported with driven gear, utilize the gear to rotate, can select corresponding drive ratio as required, through the gear variable speed, drive arrangement can adopt higher rotational speed and more powerful power device, in order to obtain the moment of torsion of bigger output, and the instrument is difficult for appearing motor stall and burns out quick-witted phenomenon when using, the cutting is more steady, probably obtain better user experience. Additionally, the utility model discloses a switching device uses the structure of electric drill class switch with the auto-lock ejector pad, and the auto-lock ejector pad can both sides operation, convenient operation, the one-hand operation of controlling of being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Wherein, 1-driven gear, 2-tool main shaft, 3-transmission shaft, 4-driving gear, 5-self-locking push block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a hand-held type electric tool machine has the moment of torsion of bigger output, and the instrument is difficult for appearing motor stalling and burning phenomenon when using, and is convenient for control hand one-hand operation.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a hand-held electric power tool according to the present invention.

The utility model provides a hand-held type electric tool machine, including output device, drive arrangement and be used for the handle portion of control, still including the transmission of connecting output device and drive arrangement, transmission is including assembling driving gear 4 on drive arrangement's rotor shaft 3 and assemble on output arrangement's tool spindle 2 and with driving gear 4 complex driven gear 1, handle portion is including the switch that is used for control to open and close, the switch is the electric drill switch, and is connected with the auto-lock ejector pad 5 that can both sides remove with the unblock switch on the electric drill switch.

Wherein, output device, drive arrangement and the handle part that is used for the control can refer to prior art's specific description, and not too much the description is done here, the utility model discloses improve output device and drive arrangement's direct connection for the mode through gear connection, increase transmission between drive arrangement and output device promptly, transmission includes driving gear 4 of assembly on drive arrangement's rotor shaft 3 and the driven gear 1 of assembly on output device's tool spindle 2, and driving gear 4 mutually supports with driven gear 1 to realize drive arrangement and output device's transmission through driving gear 4 and driven gear 1 and be connected.

Additionally, the utility model provides a hand-held type electric tool machine's switch adopts electric drill class switch, so that one-hand operation, and the hand-held portion that is used for controlling hand-held type electric tool machine has increased auto-lock ejector pad 5, auto-lock ejector pad 5 is connected with the switch on the hand-held portion, in order to realize the locking and the unblock to the switch through auto-lock ejector pad 5, only unblock auto-lock ejector pad 5 simultaneously and open the switch, can start hand-held type electric tool machine and carry out work, even with the dual fail-safe structure of auto-lock ejector pad 5 and switch, in order to improve the security that hand-held type electric tool machine used. Moreover, the self-locking push block can move along the two radial sides of the handle part respectively, so that the left-hand or right-hand operation of a user is facilitated, and the use convenience is improved.

To sum up, the utility model provides a hand-held type electric tool machine increases transmission between drive arrangement and output device, transmission is including assembling driving gear 4 on drive arrangement's rotor shaft 3 and assembling driven gear 1 on output device's tool spindle 2, and driving gear 4 and driven gear 1 mutually support, utilize the gear to rotate, can select corresponding drive ratio as required, through the gear variable speed, drive arrangement can adopt higher rotational speed and more powerful power device, in order to obtain the moment of torsion of bigger output, and the difficult motor stall that appears of instrument when using and burn out the quick-witted phenomenon, it is more steady to cut, probably obtain better user experience. Additionally, the utility model discloses a switching device uses the structure of electric drill class switch with auto-lock ejector pad 5, and auto-lock ejector pad 5 can both sides operation, convenient operation, the one-hand operation of the left and right hands of being convenient for.

On the basis of the above-described embodiments, in view of the specific choice of the drive means, it is preferable that the drive means comprise a motor commutated by brushes. Specifically, the motor is an inner rotor motor. And in order to ensure that the hand-held electric tool machine provided by the present invention has sufficient output power, preferably, the rotation speed of the tool spindle 2 is greater than 12000 rpm.

On the basis of the above-described exemplary embodiments, it is preferred if the handle part comprises a power supply device, which is a rechargeable battery, in view of the choice of the power supply device of the hand-held power tool.

In addition to any of the embodiments described above, the handheld power tool according to the present invention preferably has a weight of between 0.5kg and 1.0kg to further facilitate handheld operation. Specifically, the utility model provides a hand-held electric tool machine is between 0.6kg to 0.7 kg. And it should be noted that the weight does not include the weight of the rechargeable battery and the weight of the processing tool.

In addition, in the design of the tool, the diameters of the motor, the diameter and the length of the motor shell, the diameter and the length of the handle shell and the like are preferably selected according to human engineering, so that the tool is compact in overall structure, small in appearance, proper in weight and convenient for a user to operate with one hand by the left hand or the right hand.

It is right above that the present invention provides a hand-held electric tool that has been described in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides a hand-held type electric tool machine, includes output device, drive arrangement and is used for the handle portion of control, its characterized in that, still including connecting output device with drive arrangement's transmission, transmission is including assembling driving gear (4) and the assembly on drive arrangement's rotor shaft (3) are in on output device's tool spindle (2) and with driving gear (4) complex driven gear (1), handle portion is including the switch that is used for control to open and close, the switch is the electric drill switch, just be connected with on the electric drill switch and remove in order to unblock both sides the auto-lock ejector pad (5) of switch.

2. The hand-held power tool according to claim 1, wherein the drive device comprises a motor commutated by brushes.

3. The hand-held power tool according to claim 2, wherein the motor is an internal rotor motor.

4. The hand-held power tool according to claim 3, characterized in that the rotational speed of the tool spindle (2) is greater than 12000 revolutions per minute.

5. The hand-held power tool of claim 1, wherein the handle portion includes a power supply device that is a rechargeable battery.

6. The hand-held power tool according to any one of claims 1 to 5, characterized in that the weight of the hand-held power tool is between 0.5kg and 1.0 kg.