阅读说明：本技术 一种钻孔机钻头传动装置 (Drill bit transmission device of drilling machine ) 是由 刘学刚 于 2021-01-11 设计创作，主要内容包括：本发明公开了一种钻孔机钻头传动装置,包括机壳,机壳中间为圆形结构,机壳内侧壁上环形排列有固定凸起,机壳中间设有连接套筒,连接套筒的外侧壁上环形排列有连接槽,连接套筒的中间设有连接环,连接环中间中空,连接环的内端壁上环形排列有三个滑道,每个滑道内都滑动连接有夹持块,每个夹持块正对连接环轴心的一面为弧形结构,夹持块的侧端设有防滑橡胶,夹持块的上侧为弧形结构,三个夹持块中间夹持有钻头,连接环右侧位于两个滑道的中间设有连接孔,本发明通过调节夹持块的位置,对钻头进行固定,避免钻头在钻孔时发生打滑,同时也能适应不同直径的钻头。(The invention discloses a drill bit transmission device of a drilling machine, which comprises a casing, wherein the middle of the casing is of a circular structure, fixing bulges are annularly arranged on the inner side wall of the casing, a connecting sleeve is arranged in the middle of the casing, connecting grooves are annularly arranged on the outer side wall of the connecting sleeve, a connecting ring is arranged in the middle of the connecting sleeve, the middle of the connecting ring is hollow, three slide ways are annularly arranged on the inner end wall of the connecting ring, a clamping block is slidably connected in each slide way, one surface of each clamping block, which is opposite to the axle center of the connecting ring, is of an arc-shaped structure, anti-skid rubber is arranged at the side end of each clamping block, the upper side of each clamping block is of the arc-shaped structure, a drill bit is clamped in, the drill bit is fixed, so that the drill bit is prevented from slipping during drilling, and the drill bit can adapt to drill bits with different diameters.)

1. A drilling machine drill bit transmission device comprises a machine shell (1), and is characterized in that: the middle of the machine shell (1) is of a circular structure, a fixing protrusion (4) is arranged on the inner side wall of the machine shell (1) in an annular mode, a connecting sleeve (2) is arranged in the middle of the machine shell (1), a connecting groove (3) is arranged on the outer side wall of the connecting sleeve (2) in an annular mode, a connecting ring (7) is arranged in the middle of the connecting sleeve (2), a fixing ring (5) is arranged between the connecting sleeve (2) and the connecting ring (7), balls (6) are arranged on the fixing ring (5) in an annular mode, the balls (6) are connected with the fixing ring (5) in a rolling mode, the balls (6) are abutted against the side ends of the connecting sleeve (2) and the connecting ring (7) together, the connecting ring (7) is hollow in the middle, three slide ways (13) are arranged on the inner end wall of the connecting ring (7) in an annular, every grip block (10) just is the arc structure to the one side in go-between (7) axle center, the side of grip block (10) is equipped with anti-skidding rubber (11), the upside of grip block (10) is the arc structure, and is three the centre gripping has drill bit (14) in the middle of grip block (10), the centre that go-between (7) right side is located two slides is equipped with connecting hole (8).

2. A drill bit transmission for a drilling machine according to claim 1, wherein: go-between (7) are located connecting hole (8) and locate to rotate and are connected with first gear (16), first gear (16) both sides are equipped with the spout, sliding connection has limiting plate (17) in the spout, be equipped with the spring between limiting plate (17) and the spout, sliding connection has three spacing post (18) on limiting plate (17), spacing post (18) are T type structure, be equipped with the spring between spacing post (18) and limiting plate (17), the spring winding is on spacing post (18), upper end fixedly connected with L type structure's of limiting plate (17) connecting plate (27), the right side of connecting plate (27) is the arc structure.

3. A drill bit transmission of a drilling machine according to claim 2, wherein: fixedly connected with spliced pole (9) in the middle of first gear (16), the centre of spliced pole (9) is equipped with regulation hole (15), regulation hole (15) are the triangle-shaped structure, the centre of go-between (7) is rotated and is connected with extrusion ring (20), the circular arrangement has the teeth of a cogwheel on the inside wall of extrusion ring (20), first gear (16) and the meshing of the teeth of a cogwheel are connected, extrusion ring (20) upper end circular arrangement has extrusion post (19).

4. A drill bit transmission for a drilling machine according to claim 1, wherein: side fixedly connected with connecting block (12) of grip block (10), connecting block (12) right side is the notch cuttype structure, the right side of connecting block (12) is rotated and is connected with two second gears (21), two the meshing is connected between second gear (21), two the side of second gear (21) is fixedly connected with regulating plate (25), two be equipped with the spring between regulating plate (25), the side and extrusion post (19) of regulating plate (25) are supported and are leaned on and are in the same place.

5. A drill bit transmission device of a drilling machine according to claim 4, characterized in that: the other end of the adjusting plate (25) is rotatably connected with a third gear (26), gear teeth are annularly arranged on the inner side wall of the connecting ring (7), the third gear (26) is meshed with the gear teeth, and the two third gears (26) are symmetrically arranged.

6. A drill bit transmission for a drilling machine according to claim 1, wherein: the side of go-between (7) is arranged annularly and is had three joint groove (24), the side of go-between (7) is equipped with connection pad (22), connection pad (22) and the power take off end fixed connection of drilling machine motor, connection pad (22) just have three joint piece (23) to the one end annular arrangement of go-between (7).

Technical Field

The invention relates to the field of drilling machines, in particular to a drill bit transmission device of a drilling machine.

Background

The drilling machine is through harder, sharper instrument than the target object through the mode of rotary cutting or rotatory extrusion, leaves the circular port on the target object again, makes things convenient for subsequent construction. Because of convenient carrying and easy operation, the utility model is widely used in the industries of construction, decoration and the like. However, the diameter and depth of the hole are different for different functions, and the corresponding drill bit needs to be replaced according to the size of the hole.

The drilling machine is through fixing drill bit and transmission, and the motor drives transmission and the high-speed rotation of drill bit, and the transmission of current drilling machine is comparatively simple, when driling comparatively hard wall, can result in drill bit and transmission to skid because the resistance is great for the quality in the hole of boring is lower.

Disclosure of Invention

The present invention is directed to a drill bit transmission device of a drilling machine, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a drill bit transmission device of a drilling machine comprises a casing, wherein a circular structure is arranged in the middle of the casing, fixing protrusions are arranged on the inner side wall of the casing in an annular mode, a connecting sleeve is arranged in the middle of the casing, a connecting groove is formed in the outer side wall of the connecting sleeve in an annular mode, a connecting ring is arranged in the middle of the connecting sleeve, a fixing ring is arranged between the connecting sleeve and the connecting ring, balls are arranged on the fixing ring in an annular mode, the balls are connected with the fixing ring in a rolling mode, the balls are abutted against the side ends of the connecting sleeve and the connecting ring, the connecting ring is hollow in the middle, three slide ways are arranged on the inner end wall of the connecting ring in an annular mode, clamping blocks are connected in each slide way in a sliding mode, each clamping block is of an arc-shaped structure just opposite to one side, the drill bit is clamped between the three clamping blocks, and the connecting ring is provided with a connecting hole in the middle of the two slide ways on the right side.

Preferably, the go-between is located connecting hole department and rotates and is connected with first gear, first gear both sides are equipped with the spout, sliding connection has the limiting plate in the spout, be equipped with the spring between limiting plate and the spout, sliding connection has three spacing post on the limiting plate, spacing post is T type structure, be equipped with the spring between spacing post and the limiting plate, the spring winding is on spacing post, the connecting plate of the upper end fixedly connected with L type structure of limiting plate, the right side of connecting plate is the arc structure.

Preferably, fixedly connected with spliced pole in the middle of the first gear, the centre of spliced pole is equipped with the regulation hole, the regulation hole is the triangle-shaped structure, the centre of go-between rotates and is connected with the extrusion ring, the circular arrangement has the teeth of a cogwheel on the inside wall of extrusion ring, first gear and the meshing of the teeth of a cogwheel are connected, extrusion ring upper end circular arrangement has the extrusion post.

Preferably, the side fixedly connected with connecting block of grip block, the connecting block right side is the notch cuttype structure, the right side of connecting block is rotated and is connected with two second gears, two the meshing is connected between the second gear, two the side of second gear is fixedly connected with regulating plate, two be equipped with the spring between the regulating plate, the side and the extrusion post of regulating plate lean on together.

Preferably, the other end of the adjusting plate is rotatably connected with a third gear, gear teeth are annularly arranged on the inner side wall of the connecting ring, the third gear is meshed with the gear teeth, and the two third gears are symmetrically arranged.

Preferably, three clamping grooves are annularly arranged at the side end of the connecting ring, a connecting disc is arranged at the side end of the connecting ring, the connecting disc is fixedly connected with the power output end of the drilling machine motor, and three clamping blocks are annularly arranged at the end, opposite to the connecting ring, of the connecting disc.

Compared with the prior art, the invention has the beneficial effects that: the drill bit is stuffed in the middle of the three clamping blocks, the anti-skid rubber can increase friction, the connecting column and the first gear are driven to rotate through the adjusting hole, the first gear drives the extrusion ring to rotate through meshing transmission with the gear teeth, the extrusion ring drives the extrusion column to rotate together to extrude the adjusting plate, one adjusting plate drives the second gear to rotate when rotating, the second gear drives the other second gear and the adjusting plate to rotate through meshing transmission, the two adjusting plates drive the connecting block and the clamping block to move through rotating, the clamping block moves along the slide way to adjust the position of the clamping block, the drill bit is extruded and fixed, the drill bit can adapt to drill bits with different diameters, after the drill bit is fixed, the positioning column moves under the action of the spring and is clamped into the gear teeth gap of the first gear, the first gear is fixed in a limiting way, the clamped drill bit is prevented from loosening during drilling, and, meanwhile, the clamping block moves to clamp the drill bit, so that the drill bit can adapt to drill bits with different diameters.

Drawings

FIG. 1 is a schematic view of a connection structure of a housing and a connection sleeve;

FIG. 2 is a top view of the connection structure of the inner wall of the connection ring;

FIG. 3 is a schematic perspective exploded view of the connecting disc and the connecting ring;

FIG. 4 is a schematic view of a three-dimensional connection structure of the adjustment plate;

fig. 5 is a schematic view of a connection structure of the connection plate and the limiting plate.

In the figure: the automatic clamping device comprises a machine shell 1, a connecting sleeve 2, a connecting groove 3, a fixing protrusion 4, a fixing ring 5, a ball 6, a connecting ring 7, a connecting hole 8, a connecting column 9, a clamping block 10, anti-skid rubber 11, a connecting block 12, a slideway 13, a drill bit 14, an adjusting hole 15, a first gear 16, a limiting plate 17, a limiting column 18, an extrusion column 19, an extrusion ring 20, a second gear 21, a connecting disc 22, a clamping block 23, a clamping groove 24, an adjusting plate 25, a third gear 26 and a connecting plate 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a drill bit transmission device of a drilling machine comprises a machine shell 1, wherein the middle of the machine shell 1 is of a circular structure, a fixed bulge 4 is annularly arranged on the inner side wall of the machine shell 1, a connecting sleeve 2 is arranged in the middle of the machine shell 1, a connecting groove 3 is annularly arranged on the outer side wall of the connecting sleeve 2, a connecting ring 7 is arranged in the middle of the connecting sleeve 2, a fixed ring 5 is arranged between the connecting sleeve 2 and the connecting ring 7, balls 6 are annularly arranged on the fixed ring 5, the balls 6 are in rolling connection with the fixed ring 5, the balls 6 are abutted against the side ends of the connecting sleeve 2 and the connecting ring 7, the connecting ring 7 slides mutually through the balls 6 and the connecting sleeve 2 during rotation, the middle of the connecting ring 7 is hollow, three slide ways 13 are annularly arranged on the inner end wall of the connecting ring 7, clamping blocks 10 are slidably connected in each, the side of grip block 10 is equipped with anti-skidding rubber 11, and the upside of grip block 10 is the arc structure, and the centre of three grip block 10 centre gripping holds drill bit 14, and the right side of go-between 7 lies in the centre of two slides and is equipped with connecting hole 8.

Go-between 7 is located connecting hole 8 department and rotates and is connected with first gear 16, first gear 16 both sides are equipped with the spout, sliding connection has limiting plate 17 in the spout, be equipped with the spring between limiting plate 17 and the spout, sliding connection has three spacing post 18 on limiting plate 17, spacing post 18 is T type structure, be equipped with the spring between spacing post 18 and the limiting plate 17, the spring winding is on spacing post 18, the connecting plate 27 of the upper end fixedly connected with L type structure of limiting plate 17, the right side of connecting plate 27 is the arc structure, when the spanner gets into connecting hole 8, extrude connecting plate 27, drive limiting plate 17 and remove, shift out the gear clearance of first gear 16 with spacing post 18, after the drill bit is fixed to be accomplished, limiting post 18 removes under the effect of spring and goes deep into in the teeth of a cogwheel clearance of first gear 16, carry out spacing fixed to first gear.

Fixedly connected with spliced pole 9 in the middle of first gear 16, the centre of spliced pole 9 is equipped with regulation hole 15, regulation hole 15 is the triangle-shaped structure, the centre of go-between 7 is rotated and is connected with extrusion ring 20, the annular arrangement has the teeth of a cogwheel on extrusion ring 20's the inside wall, first gear 16 and the meshing of the teeth of a cogwheel are connected, extrusion ring 20 upper end annular arrangement has extrusion post 19, it is rotatory to drive spliced pole 9 and first gear 16 in regulation hole 15 to go into through the spanner card, first gear 16 drives extrusion ring 20 through the meshing transmission with the teeth of a cogwheel rotatory.

The side fixedly connected with connecting block 12 of grip block 10, connecting block 12 right side is the notch cuttype structure, connecting block 12's right side is rotated and is connected with two second gears 21, the meshing is connected between two second gears 21, the side of two second gears 21 is all fixedly connected with regulating plate 25, be equipped with the spring between two regulating plate 25, regulating plate 25's side and extrusion post 19 support and lean on together, extrusion post 19 promotes a regulating plate 25 and second gear 21 and rotates together, second gear 21 drives another second gear 21 and regulating plate 25 rotation through the meshing transmission, two regulating plates 25 are at rotatory connecting block 12 of drive and grip block 10 along the slide removal.

The other end of the adjusting plate 25 is rotatably connected with a third gear 26, gear teeth are annularly arranged on the inner side wall of the connecting ring 7, the third gear 26 is meshed with the gear teeth, the two third gears 26 are symmetrically arranged, and when the two adjusting plates 25 rotate, the positions of the tail ends of the adjusting plates are adjusted through the third gears 26.

Three joint grooves 24 are annularly arranged at the side end of the connecting ring 7, a connecting disc 22 is arranged at the side end of the connecting ring 7, the connecting disc 22 is fixedly connected with the power output end of the drilling machine motor, three joint blocks 23 are annularly arranged at one end, opposite to the connecting ring 7, of the connecting disc 22, the joint blocks 23 are clamped in the joint grooves 24, and when the connecting disc 22 is driven to rotate, the connecting ring 7 is driven to rotate together through the joint blocks 23.

The working principle is as follows: the drill bit 14 is plugged into the middle of the three clamping blocks 10, the anti-skid rubber 11 can increase friction, when a hand enters the connecting hole 8 deeply, the connecting plate 27 is extruded to drive the limiting plate 17 to move, the limiting column 18 is moved out of a gear gap of the first gear 16, the wrench drives the connecting column 9 and the first gear 16 to rotate through the adjusting hole 15, the first gear 16 drives the extrusion ring 20 to rotate through meshing transmission with the gear teeth, the extrusion ring 20 drives the extrusion column 19 to rotate together to extrude the adjusting plate 25, one adjusting plate 25 drives the second gear 21 to rotate when rotating, the second gear 21 drives the other second gear 21 and the adjusting plate 25 to rotate through meshing transmission, the two adjusting plates 25 drive the connecting block 12 and the clamping blocks 10 to move through rotation, the clamping blocks 10 move along the slide ways 13 to adjust the position of the clamping blocks 10, the drill bit is extruded and fixed, and can adapt to drill bits with different diameters, after 14 fixed completions to the drill bit, spacing post removes to block in the teeth of a cogwheel clearance of going into first gear 16 under the effect of spring, carry out spacing fixed to first gear 16, it is not hard up when drilling to avoid the drill bit 14 of centre gripping, 2 a section of thick bamboo of adapter sleeve fill in casing 1, connect arch 4 and spread groove 3 interconnect, carry out spacing fixed to transmission, in installation connecting sleeve 2, joint piece 23 card goes into in the joint groove 24, when connection pad 22 is driven rotatoryly, connection pad 22 drives go-between 7 through joint piece 23 and rotates together, make the drill bit can rotate and bore.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.