CN215968572U

CN215968572U - Electric hammer high-strength precision gear box

Info

Publication number: CN215968572U
Application number: CN202122108024.7U
Authority: CN
Inventors: 顾家豪
Original assignee: Nantong Kaixi Electromechanical Tools Co ltd
Current assignee: Nantong Kaixi Electromechanical Tools Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-03-08
Anticipated expiration: 2031-09-02

Abstract

The utility model discloses a high-strength precise gearbox of an electric hammer, which comprises a rear box, wherein a limit strip is fixedly connected to the inner wall of one side of the rear box, a plug is movably connected to the inner wall of one side of the rear box and is positioned above the limit strip, a rubber wire is fixedly connected to the outer wall of the top end of the plug, a pull ring is fixedly connected to the outer wall of the top end of the rubber wire, the inner wall of one side of the rear box is connected with a middle box through threads, the inner wall of one side of the middle box is fixedly connected with a front box, the inner wall of one side of the front box is fixedly connected with an electric hammer port, the outer wall of one side of the electric hammer port is provided with external threads, the outer wall of one side of the electric hammer port is connected with a lining through threads, the outer wall of one side of the lining is fixedly connected with ribs, the inner wall of one side of the lining is provided with internal threads, and the internal threads and the external threads are in the same specification. The utility model simplifies the step of adding lubricating oil and is convenient to operate.

Description

Electric hammer high-strength precision gear box

Technical Field

The utility model relates to the technical field of machinery, in particular to a high-strength precise gearbox of an electric hammer.

Background

The electric hammer is an electric rotary hammer drill with a safety clutch and a pneumatic hammering mechanism. The electric hammer utilizes the principle of piston motion, compresses gas to impact a drill bit, does not need much strength of hands, can open holes of 6-100 mm on hard materials such as concrete, bricks, stones and the like, has higher hole opening efficiency on the materials, but cannot open holes on metal.

The electric hammer relies on gear drive, and gear drive needs certain degree of lubrication, and lubricating oil can reduce the degree of lubrication gradually through a period of use, need refuel again, and under the normal condition, need dismantle the electric hammer shell, expose inside and refuel to it, general non-professional personnel do not operate well like this, in order to solve this problem, we have proposed following scheme.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a high-strength precise gearbox of an electric hammer.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an accurate gear box of electric hammer high strength, includes the back box, the spacing of one side inner wall fixedly connected with of back box, one side inner wall swing joint of back box has the stopper, and the stopper is located the top of spacing, the top outer wall fixedly connected with rubber line of stopper, and the top outer wall fixedly connected with pull ring of rubber line, through to back box top opening, closely laminating through the stopper, can easily refuel through back box top opening, convenient easy operation.

Further, there is the middle box one side inner wall of back box through threaded connection, and one side inner wall fixedly connected with front box of middle box, one side inner wall fixedly connected with electric hammer mouth of front box, one side outer wall of electric hammer mouth is provided with the external screw thread, one side outer wall of electric hammer mouth has the bush through threaded connection, and one side outer wall fixedly connected with rib of bush, one side inner wall of bush is provided with the internal thread, and the internal thread is unanimous with the external screw thread specification.

Furthermore, the middle box and the rear box comprise a supporting layer made of tungsten-titanium-tantalum hard alloy, one outer wall of the supporting layer is provided with a waterproof coating, the other outer wall of the supporting layer is provided with a sound insulation layer, one outer wall of the sound insulation layer is fixedly connected with a buffer layer, the sound insulation layer is made of polyurethane foam plastic, the buffer layer is made of damping silica gel, the outer wall of the bottom end of the rear box is fixedly connected with a supporting shell, the outer walls of two sides of the supporting shell are fixedly connected with damping springs, the outer wall of the other side of each damping spring is fixedly connected with an electric hammer shell, the electric hammer can generate certain vibration when in use and is transmitted to hands through the electric hammer by virtue of the damping springs and the buffer layer, the fatigue can be increased after long-time use, the vibration sense is reduced and the use sense is enhanced by virtue of double damping of the damping springs and the buffer layer, the supporting layer made of tungsten-titanium-tantalum hard alloy has extremely high hardness, can ignore the vibration force generated during working, and meanwhile, the ribs also provide a certain supporting force for the electric hammer port, so that the service life of the electric hammer is prolonged.

Compared with the prior art, the utility model provides a high-strength precise gearbox of an electric hammer, which has the following beneficial effects:

1. this accurate gear box of electric hammer high strength, through being provided with the back box, spacing and stopper, the electric hammer during operation, gear drive needs certain lubrication degree, lubricating oil is through a period of use, can reduce the lubrication degree gradually, need refuel again, under the normal condition, need dismantle the electric hammer shell, expose inside and refuel to it, it is comparatively complicated like this, do not operate well, through to back box top opening, closely laminate through the stopper, can easily refuel through back box top opening, convenient easy operation.

2. This accurate gear box of electric hammer high strength through being provided with damping spring and buffer layer, the electric hammer can produce certain vibrations when using to transmit to hand through the electric hammer, long-time the use can increase the fatigue degree, through the dual shock attenuation of damping spring and buffer layer, reduces the sense of shaking, and the reinforcing is used and is experienced.

3. This accurate gear box of electric hammer high strength, through being provided with rib and supporting layer, the electric hammer can produce the vibrations power of big degree in the course of the work, can cause certain injury to electric hammer mouth and whole gear box, and the supporting layer hardness that the material is tungsten titanium tantalum class carbide material is high, can neglect the vibrations power that the during operation produced, and simultaneously, the rib also gives the electric hammer mouth certain holding power, has strengthened the life of electric hammer.

The parts of the device not involved are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a schematic view of the overall structure of a high-strength precision gearbox of an electric hammer according to the present invention;

FIG. 2 is a schematic diagram of a bushing structure of a high-strength precision gearbox of an electric hammer according to the present invention;

FIG. 3 is a schematic diagram of a plug structure of a high-strength precision gearbox of an electric hammer according to the present invention;

fig. 4 is a schematic structural diagram of an overall material structure of a high-strength precise gearbox of an electric hammer according to the present invention.

In the figure: 1-electric hammer mouth, 2-front box, 3-middle box, 4-limit strip, 5-rear box, 6-support shell, 7-damping spring, 8-external thread, 9-bush, 10-internal thread, 11-rib, 12-rubber line, 13-pull ring, 14-plug, 15-waterproof coating, 16-support layer, 17-soundproof layer and 18-buffer layer.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, an accurate gear box of electric hammer high strength, including back box 5, one side inner wall fixedly connected with spacing 4 of back box 5, one side inner wall swing joint of back box 5 has stopper 14, and stopper 14 is located the top of spacing 4, the top outer wall fixedly connected with rubber thread 12 of stopper 14, and the top outer wall fixedly connected with pull ring 13 of rubber thread 12, through to back box 5 top opening, closely laminate through stopper 14, can easily refuel through back box 5 top opening, convenient easy operation.

Referring to fig. 1, in the present invention, a middle box 3 is connected to one side inner wall of a rear box 5 through a screw thread, a front box 2 is fixedly connected to one side inner wall of the middle box 3, and an electric hammer port 1 is fixedly connected to one side inner wall of the front box 2.

Referring to fig. 1, in the present invention, an external thread 8 is formed on an outer wall of one side of an electric hammer port 1.

Referring to fig. 1-2, in the present invention, a bushing 9 is connected to an outer wall of one side of an electric hammer port 1 through a thread, a rib 11 is fixedly connected to an outer wall of one side of the bushing 9, an inner wall of one side of the bushing 9 is provided with an internal thread 10, and the internal thread 10 is in accordance with the external thread 8.

Referring to fig. 4, in the present invention, the middle box 3 and the rear box 5 include a supporting layer 16, the supporting layer 16 is made of tungsten titanium tantalum hard alloy, a waterproof coating 15 is disposed on an outer wall of one side of the supporting layer 16, a sound insulation layer 17 is disposed on an outer wall of the other side of the supporting layer 16, a buffer layer 18 is fixedly connected to an outer wall of one side of the sound insulation layer 17, the sound insulation layer 17 is made of polyurethane foam, the buffer layer 18 is made of damping silica gel, the supporting layer 16 made of tungsten titanium tantalum hard alloy has extremely high hardness, vibration force generated during operation can be ignored, and a service life of the electric hammer is prolonged.

Referring to fig. 1, in the present invention, a supporting case 6 is fixedly coupled to an outer wall of a bottom end of a rear case 5.

Referring to fig. 1, in the present invention, the damping springs 7 are fixedly connected to the outer walls of the two sides of the supporting shell 6, and the electric hammer housing is fixedly connected to the outer wall of the other side of the damping spring 7, so that the double damping of the damping spring 7 and the damping layer 18 reduces the vibration feeling and enhances the use feeling.

The working principle is as follows: when the electric hammer works, the inside gear transmission can generate huge vibration force, the intensity of the electric hammer gear box is guaranteed under the protection of the supporting layer 16 made of tungsten-titanium-tantalum hard alloy, meanwhile, the gear transmission needs certain lubrication degree, when lubricating oil is added, the electric hammer gear box can be added from the rear box 5 by opening the plug 14, the steps are simple, the operation is easy, and meanwhile, under the combined action of the damping spring 7 and the buffer layer 18, the vibration force sensed by hand holding can be greatly reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides an accurate gear box of electric hammer high strength, includes rear box (5), its characterized in that, one side inner wall fixedly connected with of rear box (5) is spacing (4), one side inner wall swing joint of rear box (5) has stopper (14), and stopper (14) are located the top of spacing (4), the top outer wall fixedly connected with rubber thread (12) of stopper (14), and the top outer wall fixedly connected with pull ring (13) of rubber thread (12).

2. The high-strength precise gearbox of the electric hammer according to claim 1, wherein the inner wall of one side of the rear box (5) is connected with the middle box (3) through threads, the inner wall of one side of the middle box (3) is fixedly connected with the front box (2), and the inner wall of one side of the front box (2) is fixedly connected with the electric hammer port (1).

3. An electric hammer high-strength precise gear box according to claim 2, characterized in that one side outer wall of the electric hammer port (1) is provided with an external thread (8).

4. The high-strength precise gearbox of the electric hammer according to claim 3, wherein a bushing (9) is connected to the outer wall of one side of the electric hammer port (1) through threads, a rib (11) is fixedly connected to the outer wall of one side of the bushing (9), an internal thread (10) is arranged on the inner wall of one side of the bushing (9), and the internal thread (10) is in accordance with the external thread (8).

5. The high-strength precise gearbox of the electric hammer according to claim 2, wherein the middle box (3) and the rear box (5) comprise a supporting layer (16), the supporting layer (16) is made of tungsten-titanium-tantalum hard alloy, a waterproof coating (15) is arranged on the outer wall of one side of the supporting layer (16), a sound insulation layer (17) is arranged on the outer wall of the other side of the supporting layer (16), a buffer layer (18) is fixedly connected to the outer wall of one side of the sound insulation layer (17), the sound insulation layer (17) is made of polyurethane foam, and the buffer layer (18) is made of shock-absorbing silica gel.

6. An electric hammer high-strength precision gearbox according to claim 1, characterized in that the outer wall of the bottom end of the rear box (5) is fixedly connected with a supporting shell (6).

7. An electric hammer high-strength precise gear box according to claim 6, characterized in that the outer walls of two sides of the supporting shell (6) are fixedly connected with damping springs (7), and the outer wall of the other side of each damping spring (7) is fixedly connected with an electric hammer shell.