Gun drill for slender hole

Abstract

The utility model provides a gun drill for a slender hole, which belongs to the technical field of gun drills, aims to solve the problems that scraps and raised dust which are generated by crushing a drilled object due to high-speed operation of a drill rod splash everywhere, are extremely easy to hurt a worker and influence the operation safety during drilling operation, and comprises a gun drill main body, the drill rod is rotationally arranged outside the front end face of the gun drill body. The protective shell is fixedly connected to the outer side of the upper end of the gun drill body. The movable shell is slidably connected to the outer side of the front end face of the protective shell. The material cleaning scraping plate is rotationally arranged on the inner sides of the protective shell and the movable shell; the material guiding auxiliary mechanism is arranged between the material cleaning scraping plate and the movable shell; the material guiding auxiliary mechanism comprises a driving rotating shaft and a transmission gear ring; according to the gun drill, the outer side of the drill rod is effectively protected, chippings and raised dust are prevented from splashing all around, and the operation safety of an operator during drilling operation and the use safety of the gun drill in the actual application process are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the gun drill technical field, more specifically, especially relate to a gun drill for long and narrow hole. BACKGROUND

[0002] Gun drill is often used in the process of processing long and narrow hole, and high-speed operation of drill rod is used to realize deep hole processing of die steel, glass fiber and high-strength alloy in the actual application process of gun drill.

[0003] For example, the existing application number CN202223513965.X discloses a gun drill, and relates to the technical field of gun drills, which comprises a gun drill body, a torque sleeve, a drill chuck, a handle and a bottom shell, a high-power motor is arranged in the gun drill body, a transmission shaft is fixedly connected to the output end of the high-power motor, and a gear assembly is arranged on the surface of the transmission shaft; an upper surface of the gun drill body is provided with a safety push button; a buffer component for buffering when the gun drill body drills a hole is arranged in the gun drill body; a surface of the gun drill body is provided with a heat dissipation component, an adjusting mechanism is arranged in the handle, a gear knob is arranged on the outer side of the handle, and anti-skid lines are arranged on the surface of the handle, the gun drill can buffer the reaction force in the gun drill body when the gun drill body drills a hole, ensures the accuracy of drilling, avoids damage of the parts in the gun drill body caused by the reaction force of the wall surface, and prolongs the service life of the gun drill.

[0004] Based on the above, in the process of drilling long and narrow holes, the high-speed operation of the drill rod causes the debris and dust generated by the broken drilled objects to fly everywhere, which not only easily causes harm to the workers, affects the operation safety during drilling operation, but also pollutes the surrounding environment and increases the cleaning burden of the operators during drilling operation. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides a gun drill for long and narrow hole, which solves the problem that in the process of drilling long and narrow holes, the high-speed operation of the drill rod causes the debris and dust generated by the broken drilled objects to fly everywhere, which not only easily causes harm to the workers, affects the operation safety during drilling operation, but also pollutes the surrounding environment and increases the cleaning burden of the operators during drilling operation.

[0006] The purpose and effect of the gun drill for long and narrow hole are achieved by the following specific technical means:

[0007] A gun drill for elongated hole, including gun drill main body, drill rod, protective shell, movable shell, material cleaning scraper and material guiding auxiliary mechanism, the drill rod is rotationally arranged on the outside of the front end surface of the gun drill main body, the protective shell is fixedly connected on the outside of the upper end of the gun drill main body, the movable shell is slidingly connected on the outside of the front end surface of the protective shell, the front and rear end surfaces of the protective shell and the movable shell are fixedly connected with resistance increasing rings, the material cleaning scraper is rotationally arranged on the inside of the protective shell and the movable shell, and the material cleaning scraper and the inner wall of the protective shell are mutually attached, the material guiding auxiliary mechanism is arranged between the material cleaning scraper and the movable shell, the material guiding auxiliary mechanism includes driving shaft and transmission gear ring, the driving shaft is rotationally arranged on the outside of the rear end resistance increasing ring, the transmission gear ring is rotationally connected on the inner end of the rear end resistance increasing ring, and the material guiding auxiliary mechanism further includes transmission auxiliary shaft.

[0008] Further, a plurality of elastic connecting pieces are fixedly connected between the protective shell and the movable shell, and the inner wall of the movable shell is a slope structure inclined from the upper front end to the lower rear end.

[0009] Further, a material guiding pipe is communicated on the outside of the bottom end surface of the protective shell, and a dust collecting box is threadedly connected on the outer end of the material guiding pipe.

[0010] Further, the material guiding auxiliary mechanism further includes driving rack, driving gear and positioning support, the driving rack is fixedly connected on the outside of the rear end surface of the movable shell, the driving gear is coaxially fixedly connected on the outside of the driving shaft, the driving shaft and the driving rack are mutually engaged, and the positioning support is rotationally connected on the outside of the driving shaft and fixedly connected with the rear end resistance increasing ring.

[0011] Further, the transmission auxiliary shaft is vertically rotationally arranged on the outside of the driving shaft, a driving bevel gear is coaxially fixedly connected on the outer end of the driving shaft, a driven bevel gear is coaxially fixedly connected on the front end surface of the transmission auxiliary shaft, the driven bevel gear and the driving bevel gear are mutually engaged, a transmission gear is coaxially fixedly connected on the rear end surface of the transmission auxiliary shaft, and the transmission gear and the transmission gear ring are mutually engaged.

[0012] Further, a positioning guide frame is fixedly connected on the inner end of the transmission gear ring.

[0013] A connecting support is fixedly connected on the outer end of the material cleaning scraper, a resistance increasing frame with convex letter structure is fixedly connected on the rear end surface of the connecting support, an elastic extrusion piece is fixedly connected between the resistance increasing frame and the positioning guide frame, and an elastic scraper is elastically connected on the front end surface of the material cleaning scraper.

[0014] Compared with the prior art, the gun drill has the following beneficial effects:

[0015] The utility model discloses in using, realized the effective protection of the drill rod outside, avoid the splattering of debris and dust everywhere, guarantee the operation safety of operating personnel when drilling operation, and the use safety of the gun drill in practical application process, increase the contact area of the gun drill and the drilled object in the drilling process simultaneously, avoid the inclination phenomenon of drill rod and gun drill main part when drilling, further improve the use effect of the gun drill in practical application process.

[0016] The utility model discloses in using, realized the automatic cleaning of the debris and dust of protective shell and movable shell inner wall, the dust debris is guided in time to the inside of dust collecting box, guaranteed the cleaning effect of protective shell and movable shell, the pollution of dust to the surrounding environment is avoided greatly simultaneously, the cleaning burden of operating personnel when drilling operation is alleviated, and the use effect of the gun drill in practical application process is further improved. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the whole isometric structure schematic diagram of the utility model.

[0018] Figure 2 It is the protective shell and drill rod installation structure schematic diagram of the utility model.

[0019] Figure 3 It is the movable shell and drive rack connection structure schematic diagram of the utility model.

[0020] Figure 4 It is the structure schematic diagram of the material guide auxiliary mechanism of the utility model.

[0021] Figure 5 It is the clear material scraper and transmission gear ring installation structure schematic diagram of the utility model.

[0022] Figure 6 It is the clear material scraper and positioning guide frame split structure schematic diagram of the utility model.

[0023] In the drawing, the corresponding relation of component name and drawing number is as follows:

[0024] 1, gun drill main part;2, drill rod;3, protective shell;4, movable shell;301, elastic connecting piece;302, resistance ring;303, material guide pipe;304, dust collecting box;5, clear material scraper;501, connecting support;502, resistance frame;503, elastic extrusion piece;504, elastic scraper;6, drive shaft;601, drive rack;602, drive gear;603, positioning support;604, transmission auxiliary shaft;605, driving bevel gear;606, driven bevel gear;607, transmission gear;608, transmission gear ring;609, positioning guide frame. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be described in further detail below in combination with the drawings and examples.

[0026] Example one: as shown in the accompanying Figure 1 to the accompanying Figure 3 As shown:

[0027] The utility model provides a gun drill for elongated hole, including gun drill main body 1, drill rod 2, protective shell 3, movable shell 4, clear material scraper 5 and guide material auxiliary mechanism, and drill rod 2 rotationally arranged at the outside of the front end surface of gun drill main body 1, protective shell 3 is fixedly connected at the outside of the upper end of gun drill main body 1, movable shell 4 is slidably connected at the outside of the front end surface of protective shell 3, and the front and rear end surfaces of protective shell 3 and movable shell 4 are fixedly connected with resistance ring 302, clear material scraper 5 is rotationally arranged at the inside of protective shell 3 and movable shell 4, and the inner wall of clear material scraper 5 and protective shell 3 is mutually attached, and guide material auxiliary mechanism is arranged between clear material scraper 5 and movable shell 4, and guide material auxiliary mechanism includes: driving shaft 6 and transmission gear ring 608, and driving shaft 6 is rotationally arranged at the outside of rear end resistance ring 302, and transmission gear ring 608 is rotatably connected at the inner end of rear end resistance ring 302.

[0028] Among them, a plurality of elastic connecting pieces 301 are fixedly connected between protective shell 3 and movable shell 4, and the inner wall of movable shell 4 is a slope structure that is inclined from the upper front end to the lower rear end.

[0029] Among them, the outside of the bottom end surface of protective shell 3 is communicated with guide pipe 303, and the outer end of guide pipe 303 is screw-connected with dust collection box 304.

[0030] Among them, guide material auxiliary mechanism further includes: driving rack 601, driving gear 602 and positioning bracket 603, driving rack 601 is fixedly connected at the outside of the rear end surface of movable shell 4, driving gear 602 is coaxially fixedly connected at the outside of driving shaft 6, and driving shaft 6 and driving rack 601 are mutually engaged, and positioning bracket 603 is rotatably connected at the outside of driving shaft 6, and positioning bracket 603 is fixedly connected with rear end resistance ring 302.

[0031] The specific use mode and effect of the embodiment:

[0032] The utility model in using, the process of drilling the elongated hole, protective shell 3 and movable shell 4 effectively protect the outside of drill rod 2, avoid the splashing of debris and dust everywhere, and the cooperation of resistance ring 302 is used to increase the contact area of the gun drill with the drilled object during drilling, during drilling, with the continuous feeding of drill rod 2, the elastic connecting piece 301 is extruded due to the relative force between the drilled object and the movable shell 4, the movable shell 4 slides backward, and the driving rack 601 drives the driving gear 602 and the driving shaft 6 to rotate during the sliding process of the movable shell 4.

[0033] Embodiment two: as shown in the accompanying Figure 3 to the accompanying Figure 6 :

[0034] On the basis of embodiment one, the material guiding auxiliary mechanism further comprises a transmission auxiliary shaft 604.

[0035] Wherein, the transmission auxiliary shaft 604 is vertically rotatably arranged outside the driving shaft 6; the driving shaft 6 is coaxially fixedly connected with a driving bevel gear 605 at the outer end; the front end surface of the transmission auxiliary shaft 604 is coaxially fixedly connected with a driven bevel gear 606; the driven bevel gear 606 and the driving bevel gear 605 are in mesh with each other; the rear end surface of the transmission auxiliary shaft 604 is coaxially fixedly connected with a transmission gear 607; the transmission gear 607 and a transmission gear ring 608 are in mesh with each other.

[0036] Wherein, the transmission gear ring 608 is fixedly connected with a positioning guide frame 609 at the inner end;

[0037] The outer end of the material cleaning scraper 5 is fixedly connected with a connecting bracket 501; the rear end surface of the connecting bracket 501 is fixedly connected with a convex-shaped resistance increasing bracket 502; the resistance increasing bracket 502 and the positioning guide frame 609 are fixedly connected with an elastic extrusion piece 503; the front end surface of the material cleaning scraper 5 is elastically connected with an elastic scraper 504.

[0038] The specific use mode and effect of the embodiment:

[0039] In use, during the rotation of the driving shaft 6, the driving bevel gear 605 drives the driven bevel gear 606 and the transmission auxiliary shaft 604 to rotate, during the rotation of the transmission auxiliary shaft 604, the transmission gear 607 drives the transmission gear ring 608 to rotate, during the rotation of the transmission gear ring 608, the material cleaning scraper 5 and the elastic scraper 504 are synchronously rotated, the automatic cleaning of the debris and dust in the inner end of the protective shell 3 and the movable shell 4 is realized, the debris and dust are guided into the dust collecting box 304 by the material guiding pipe 303 to collect the debris and dust, during the cleaning of the debris and dust, the elastic extrusion piece 503 drives the material cleaning scraper 5 and the elastic scraper 504 to keep in contact with the protective shell 3 and the movable shell 4, and the cleaning effect of the protective shell 3 and the movable shell 4 is ensured.

[0040] In this paper, the following points need attention:

[0041] 1. The drawings of the disclosed embodiment only relate to the structures involved in the disclosed embodiment, and other structures can refer to the general design.

[0042] 2. In the case of no conflict, the embodiments and the features in the embodiments of the disclosure can be combined with each other to obtain new embodiments.

[0043] The above merely describes specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A gun drill for elongated holes, comprising a gun drill body, a drill rod, a protective shell, a movable shell, a material cleaning scraper and a material guiding auxiliary mechanism, the drill rod is rotationally arranged outside the front end surface of the gun drill body; characterized in that: The protective shell is fixedly connected to the outer side of the upper end of the gun drill body; the movable shell is slidingly connected to the outer side of the front end surface of the protective shell; the front and rear end surfaces of the protective shell and the movable shell are fixedly connected with resistance rings; the material cleaning scraper is rotatably arranged on the inner side of the protective shell and the movable shell, and the material cleaning scraper is in close contact with the inner wall of the protective shell; the material guiding auxiliary mechanism is arranged between the material cleaning scraper and the movable shell; the material guiding auxiliary mechanism comprises a driving shaft and a transmission gear ring, the driving shaft is rotatably arranged on the outer side of the rear resistance ring, and the transmission gear ring is rotatably connected to the inner end of the rear resistance ring.

2. A gun drill for elongated holes as claimed in claim 1, characterized in that: A plurality of elastic connecting pieces are fixedly connected between the protective shell and the movable shell; the inner wall of the movable shell is a slope-shaped structure inclined from the upper front end to the lower rear end.

3. The gun drill for elongated holes according to claim 1, characterized in that: A material guiding pipe is communicated with the outer side of the bottom end surface of the protective shell; and a dust collecting box is threadedly connected to the outer end of the material guiding pipe.

4. The gun drill for elongated holes of claim 1 wherein: The material guiding auxiliary mechanism further comprises a driving rack, a driving gear and a positioning support, the driving rack is fixedly connected to the outer side of the rear end surface of the movable shell, the driving gear is coaxially fixedly connected to the outer side of the driving shaft, and the driving shaft and the driving rack are in meshing connection with each other, and the positioning support is rotatably connected to the outer side of the driving shaft and fixedly connected with the rear resistance ring.

5. The gun drill for elongated holes defined in claim 1 wherein: The transmission auxiliary shaft is perpendicularly rotatably arranged on the outer side of the driving shaft; the driving shaft is coaxially fixedly connected with a driving bevel gear at the outer end thereof; the transmission auxiliary shaft is coaxially fixedly connected with a driven bevel gear at the front end surface thereof; the driven bevel gear and the driving bevel gear are in meshing connection with each other; the transmission auxiliary shaft is coaxially fixedly connected with a transmission gear at the rear end surface thereof; and the transmission gear and the transmission gear ring are in meshing connection with each other.

6. The gun drill for elongated holes of claim 1 wherein: The positioning guide frame is fixedly connected to the inner end of the transmission gear ring; The outer end of the material cleaning scraper is fixedly connected with a connecting support; the rear end surface of the connecting support is fixedly connected with a resistance increasing frame in a convex shape; the resistance increasing frame and the positioning guide frame are fixedly connected with an elastic extrusion piece; and the front end surface of the material cleaning scraper is elastically connected with an elastic scraper.

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