CN201136143Y

CN201136143Y - Shock-absorbing device for fan generator of combustion power type nailing gun

Info

Publication number: CN201136143Y
Application number: CNU200720310686XU
Authority: CN
Inventors: 陈敏松
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-13
Filing date: 2007-12-13
Publication date: 2008-10-22
Anticipated expiration: 2017-12-13
Also published as: WO2009079899A1

Abstract

The utility model relates to a flaming powered power actuated setting device fan electrical motor damping device, comprising a motor cabinet with an electrical motor mounting hole and an electrical motor provided with a fan. The flaming powered power actuated setting device fan electromotor damping device is characterized in that one end of the electrical motor mounting hole is a closed end, a hole through which an electrical motor axle can passes is arranged in the center of the closed end, a mounting cover is mounted in the other end of the mounting hole, springs are respectively mounted between the closed end of the mounting hole and the electrical motor, as well as between the electrical motor and the mounting cover, and the electrical motor can move back and forth in the electrical motor mounting hole along the axes direction of the electrical motor mounting hole. Because the springs are respectively mounted between the closed end of the mounting hole and the electrical motor, as well as between the electrical motor and the mounting cover, thereby playing the role of reducing the vibration of the electrical motor, increasing the service life of the power actuated setting device, and simultaneously reducing the manufacturing costs of the power actuated setting device.

Description

A kind of combustion powered type ail gun fan electromotor damping device

Technical field

The utility model relates to a kind of ail gun motor shock-absorbing device, particularly a kind of combustion powered type ail gun fan electromotor damping device.

Background technology

In the common combustion powered type ail gun compact internal combustion engine is housed, internal combustion engine provides power by a compression gas tank.Compression gas tank is connected with the combustion chamber, is typically provided with igniter in the combustion chamber, and disposes a fan in the combustion chamber, guarantees active combustion and the discharge of being convenient to waste gas in the combustion chamber.Fan is by the motor-driven that is suspended in the nail rifle housing.Internal combustion engine has a reciprocating piston, and it has a drives impeller that is contained in the elongated rigidity in the cylinder.Valve pocket can be around the cylinder axially reciprocating, and by a linkage, when a workpiece contact element of this linkage end is pushed down workpiece, closes fuel chambers.The action triggers of this workpiece pressing fuel control valve, the combustion chamber that the input of the fuel of regulation volume amount is closed.

Pull trigger switch, the gaseous fuel igniting that combustion in IC engine is indoor, piston and drives impeller are clashed into an oriented securing member, and it are hammered into workpiece by the directive below.Then.By the gas pressure difference in the cylinder, make piston get back to its original or " awaiting orders " position.Securing member is followed closely the mouth of pipe that casket is sent instrument to by one, and securing member is properly oriented to accept the bump of drives impeller in the nail casket.

Light can be right the fuel/air mixture mixture after, the burning of combustion chamber makes piston/drives impeller device produce acceleration, thereby makes securing member pierce into work.Moving downward of this combination makes instrument produce a reaction force or recoil.Therefore, fan motor can be subjected to a reaction force and recoil.Yet within several milliseconds, the momentum of piston/drives impeller device is stopped by the buffer on the cylinder other end and instrument is quickened to the workpiece direction.Like this, motor can be subjected to an acceleration force opposite with direction.After standing these reciprocal acceleration, motor can produce the motion with respect to the ail gun main body.Therefore, for solving the reciprocating problem of this ail gun motor, publication number is that the Chinese patent of CN1169655C discloses a kind of hitch, hitch comprises an elastic mounts, and in nail rifle inside, the shortcoming of this device is elastic mounts with motor suspension, motor must use the motor with the supporting given shape of suspension arrangement, the so just motor of this given shape of needs production, and fixed mount need adopt specific flexible member, has increased the manufacturing cost of nail rifle.And motor is fixed frame when being fixed on the rifle body, and the installing hole madial wall on motor sidewall and the rifle body has certain distance, when this just makes the stressed motion of motor, not only moves on the axial direction of motor shaft, and in motion in the radial direction, motor rocked.So not only motor has been caused influence, motor shaft also can rub with making its hole that passes, and not only noise is bigger, and may play inhibition to motor shaft when motor shaft rotates once more.

The utility model content:

The purpose of this utility model is intended to overcome at least above-mentioned shortcoming of the prior art.

To achieve these goals, a kind of combustion powered type ail gun fan electromotor damping device that provides according to the utility model, comprise: the motor cabinet of translator installing hole, the motor of fan has been installed, one end of described motor installing hole is a blind end, the central authorities of described blind end are provided with a hole of passing through that can make described motor, the described installing hole other end is equipped with mounting cover, between described installing hole blind end and the described motor, be separately installed with spring between described motor and the described mounting cover, described motor can move forward and backward along described motor installing hole axis direction in described motor installing hole.

Be provided with back-up ring between described mounting cover and described motor, described back-up ring is installed in the circlip groove of described motor installing hole one end, and an end of the described spring between described motor and described mounting cover is resisted against on the described back-up ring.

Described spring is the compression spring.

Compared with prior art have following advantage at least according to a kind of combustion powered type ail gun fan electromotor damping device of the present utility model:

1, the utility model has played the effect that making motor reduce vibrations between installing hole blind end and the motor, be separately installed with spring between motor and the mounting cover, has fallen at the end manufacturing cost of nail rifle simultaneously.

2, motor described in the utility model can move forward and backward along motor installing hole axis direction in the motor installing hole, can weaken the indirectly-acting power of nail rifle mist blast in use back to motor, play cushioning effect, thereby increased the service life of nail rifle.

Description of drawings

Fig. 1 is the decomposing schematic representation according to the burning power type ail gun fan electromotor damping device of the utility model embodiment;

Fig. 2 is the structural representation according to the burning power type ail gun fan electromotor damping device of the utility model embodiment;

The specific embodiment:

Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish label is represented components identical.Be used to explain the utility model below by the embodiment that is described with reference to the drawings, described embodiment is exemplary, and can not be interpreted as restriction of the present utility model.

Referring to Fig. 1, Fig. 2, a kind of combustion powered type ail gun fan electromotor damping device that provides according to the utility model, comprise: the motor cabinet 1 of translator installing hole 11, the motor 2 of fan 21 has been installed, one end of described motor installing hole 11 is a blind end 12, the central authorities of described blind end 12 are provided with axle 6 holes of passing through that can make described motor 2, described installing hole 11 other ends are equipped with mounting cover 3, between described installing hole blind end 12 and the described motor 2, be separately installed with spring 4 between described motor 2 and the described mounting cover 3, described motor 2 can move forward and backward along described motor installing hole 11 axis directions in described motor installing hole 11.In the nail rifle course of work, fan 21 is installed in the combustion chamber of nail rifle, in the nail rifle course of work, mist in the combustion chamber is lighted and is expanded, expanding gas has certain thrust to fan 21, because fan 21 links to each other with motor 2, motor is subjected to equally along the thrust of the axial direction of the axle of motor.Because motor 2 is installed in the motor installing hole 11, and can move forward and backward along described motor installing hole 11 axis directions.When fan 21 is subjected to thrust, motor 2 upwards end motions, the spring 4 that is positioned at motor 2 upper ends is compacted, and the spring 4 that is positioned at motor 2 lower ends is stretched.After nailing finishes, owing to the pressure in the combustion chamber reduces suddenly, the downward end motion of motor, the spring 4 that is positioned at motor 2 lower ends this moment is compacted, and the spring 4 that is positioned at motor 2 upper end ends is stretched.Motion and so forth, motor is in protected state always, has reduced the vibrations of motor 2, has reduced noise simultaneously.And the spring relative cost is lower, and service life is longer.

According to further embodiment of the present utility model, between described mounting cover 3 and described motor 2, be provided with back-up ring 5, described back-up ring 5 is installed in the circlip groove of described motor installing hole 11 1 ends, and an end of the described spring 4 that described motor 2 and described mounting cover are 3 is resisted against on the described back-up ring 5.Particularly, be provided with and the ring washer groove near motor 2 upper end position places at installing hole, ring washer for example is elastic steel ring, steel ring is clutched postposition to file in the ring recess, steel ring is connected with the spring 4 that is installed in motor 2 upper ends, and spring has been played the effect that limits, and makes whole device more stable.

As spring 4 as described in the above-mentioned embodiment can be the compression spring.

Claims

1, a kind of combustion powered type ail gun fan electromotor damping device, comprise: the motor cabinet (1) of translator installing hole (11), the motor (2) of fan (21) has been installed, it is characterized in that: an end of described motor installing hole (11) is blind end (12), the central authorities of described blind end (12) are provided with the hole that the axle (6) that can make described motor (2) passes through, described installing hole (11) other end is equipped with mounting cover (3), between described installing hole blind end (12) and the described motor (2), be separately installed with spring (4) between described motor (2) and the described mounting cover (3), described motor (2) can move forward and backward along described motor installing hole (11) axis direction in described motor installing hole (11).

2, a kind of combustion powered type ail gun fan electromotor damping device according to claim 1, it is characterized in that: between described mounting cover (3) and described motor (2), be provided with back-up ring (5), described back-up ring (5) is installed in the circlip groove of described motor installing hole (11) one ends, and an end of the described spring (4) between described motor (2) and described mounting cover (3) is resisted against on the described back-up ring (5).

3, a kind of combustion powered type ail gun fan electromotor damping device according to claim 1 is characterized in that: described spring (4) is the compression spring.