CN1888370A - Concrete drilling hole machine with friction sheet - Google Patents
Concrete drilling hole machine with friction sheet Download PDFInfo
- Publication number
- CN1888370A CN1888370A CN 200610014873 CN200610014873A CN1888370A CN 1888370 A CN1888370 A CN 1888370A CN 200610014873 CN200610014873 CN 200610014873 CN 200610014873 A CN200610014873 A CN 200610014873A CN 1888370 A CN1888370 A CN 1888370A
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- Prior art keywords
- friction plate
- output shaft
- gearbox
- elasticity
- drilling hole
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Abstract
The present invention discloses a concrete drilling machine with friction disk. Its structure includes the following several portions: motor; speed change box connected with motor; said speed change box has three-stage transmission mechanism; friction disk and elastic pressure plate are respectively set on two sides of main gear mounted on the output shaft in said speed change box; edge of the described elastic pressure plate is respectively stuck on outer side face of said friction disk, said outer side face is respectively contacted with rotatable locking nut and bearing inner sleeve fixed on the output shaft; in the inner hole of main gear a shaft sleeve is tightly fixed, the inner hole of the described shaft sleeve is turnably mounted on the optical axis of output shaft.
Description
Technical field
What the present invention relates to is boring concrete drilling hole machine, particularly be and the supporting special use of construction equipment to the concrete drilling hole machine with friction plate of steel concrete boring.
Background technology
Concrete drilling hole machine is at present in the world steel bar concrete to be holed, cut, got the desirable efficient electric tools of operation such as core reinforcing in the construction equipment.Above-mentioned concrete drilling hole machine includes the motor and the connected gearbox of construction equipment Concrete drilling special use, and the output shaft of motor is the power shaft of gearbox, the be coupling drill bit of concrete drilling hole machine of the output of gearbox.The gearbox of above-mentioned prior art concrete drilling hole machine is 2 grades of transmissions, that is, the pinion on the motor output shaft drives in the gearbox and the gear wheel of its engagement rotates, and this is 1 grade of transmission; Be packed in the 1st axle on the gear wheel and drive pinion rotation on this, this pinion is delivered to the 2nd axle (that is, the output of gearbox) by the master gear with its engagement again, and this is 2 grades of transmissions, and the concrete drill bit is housed on the output of gearbox.In the prior art, drill bit was stuck easily when the concrete drill bit was subjected to big resistance, at this moment, gear in the gearbox rotates under the motor effect continuously, the gear that is connected on the same axis with drill bit produces the phenomenon of cracking a joke, and for preventing above-mentioned defective, has the people to increase in the master gear both sides and has friction plate.
There is following defective in the gearbox of above-mentioned prior art:
1. volume is big, and the weight hinge is heavy, and unit weight is 28 kilograms, uses inconvenient.Its reason is: the rotating speed of motor output shaft is 24000-27000 rev/min, and it is 700-800 rev/min that the concrete drill free that its output shaft connects after 2 grades of transmissions of gearbox should reach optimum speed.Prior art is only through 2 grades of transmissions, and gearbox reaches so rotating speed, and the external diameter ratio of gear must strengthen, and therefore causes gearbox body to increase, and weight is inevitable big as a result for it.
2. the distortion power of level transmission mechanism is little.The structure of described friction plate is to adopt the section of 62 brass to make to set the tabular of thickness, and the friction plate of above-mentioned platy structure does not have elasticity.When being stuck appearred in drill bit, if the locknut that is pressed in the friction plate both sides is tightened, the gear wheel on its output shaft did not rotate under tabular friction plate pressure, and the gearbox internal gear phenomenon of cracking a joke appears in motor work this moment; Otherwise when the locknut that is pressed in the friction plate both sides is unscrewed, skidding appears again in drill bit, motor work this moment, and output shaft is not worked, and can't hole.Import friction plate quality is good, but cost is too high.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide and have big transmission power structure in a kind of gearbox, being contained in the gearbox on the output shaft elasticity presses to pull and has setting elasticity, guarantee the concrete drilling hole machine operate as normal, when drill bit occurs being stuck when motionless, the output shaft of gear-box that is connected with drill bit does not rotate, and avoids the crack a joke concrete drilling hole machine with friction plate of phenomenon of gearbox internal gear.
The technical scheme that solves the problems of the technologies described above is: a kind of concrete drilling hole machine with friction plate, and its structure comprises: motor; The gearbox that is connected with motor; Be contained in the concrete drill bit on the output shaft of gear-box; Be contained in the friction plate of master gear both sides on the interior output shaft of gearbox, described gearbox has three grades of transmission mechanisms; The both sides that are contained in master gear on the output shaft in gearbox are disposed with friction plate and elasticity respectively and press and pull, and wherein friction plate is contained on the output shaft, and elasticity is pressed to be wrenched and is solidly connected on output shaft; Described elasticity presses the edge of pulling to be attached to respectively on the friction plate lateral surface, and its lateral surface contacts revolvable locknut and the bearing inner sleeve that is fixed on the output shaft respectively; The master gear endoporus is fastened with axle sleeve, and the endoporus of described axle sleeve is contained on the optical axis of output shaft rotationally.
The invention has the beneficial effects as follows: the present invention is provided with the elasticity that section has butterfly structure and presses the phosphor-copper friction plate pull with sheet in the master gear both sides of output shaft of gear-box, utilize locknut to compress the contact plane that elasticity is pressed formation 2-3 millimeter between the design feature pull stressed back elastic deformation and the phosphor-copper friction plate, driving force is delivered to carries out operate as normal on the concrete drill bit.
Be stuck when motionless when the concrete drill bit occurring, the output shaft that is connected with the concrete drill bit does not rotate, at this moment, the gear that the gearbox power shaft still drives in the gearbox is rotated further, the rotatory force of master gear greater than its two sides and elasticity press pull, during frictional force between the phosphor-copper friction plate, master gear dallies on the output shaft that stops operating, and avoids occurring the gearbox internal gear effectively and beats the tooth phenomenon, guarantees the concrete drilling hole machine operate as normal.
The present invention is according to the different situations of job site, can adjust locknut and elasticity at any time and press pressure between pulling, change elasticity press pull and the phosphor-copper friction plate between contact area, guarantee concrete drill bit operate as normal.
Gearbox of the present invention has three grades of transmission mechanisms, and output torque is big, and the gearbox volume is little, and is in light weight, and weight is 23.5 kilograms, the drilling efficiency height.
Description of drawings
Fig. 1 is a gearbox transmission mechanism schematic diagram of the present invention;
Fig. 2 is that the master gear both sides of assembling on the output shaft in the gearbox among Fig. 1 have elastic-friction structure partial amplification view;
Fig. 3 is that the elasticity pressure is pulled half sectional view among Fig. 2;
Fig. 4 is the right view of Fig. 3;
Fig. 5 is a friction plate front view among Fig. 2;
Fig. 6 is the left view of Fig. 5.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated.
Fig. 1 is a gearbox transmission mechanism schematic diagram of the present invention; Fig. 2 is that the master gear both sides of assembling on the output shaft in the gearbox among Fig. 1 have elastic-friction structure partial amplification view; Fig. 3 is that the elasticity pressure is pulled half sectional view among Fig. 2; Fig. 4 is the right view of Fig. 3; Fig. 5 is a friction plate front view among Fig. 2; Fig. 6 is the left view of Fig. 5.
As shown in the figure, the invention provides a kind of concrete drilling hole machine with friction plate, the structure of this concrete drilling hole machine comprises: motor 1; The gearbox 10 that is connected with motor 1; Be contained in the concrete drill bit 5 on gearbox 10 output shafts 4.Be contained in the friction plate 9 of master gear 6 both sides on the gearbox 10 interior output shafts 4.
Gearbox 10 of the present invention has three grades of transmission mechanisms, described three grades of transmission mechanisms are: the main shaft 20 at motor 1 tightens connection gear 21, be provided with two power transmission shafts 2,3 and output shaft 4 in the gearbox 10, described power transmission shaft 2 tightens and connects and gear 21 meshed gears 22 and gear 23; Described power transmission shaft 3 tightens and connects and gear 23 meshed gears 24 and gear 25; Described output shaft 4 tightens the master gear 6 that connects with gear 25 engagements.Motor 1 is delivered to the power of its output shaft 20 three grades of transmission mechanisms by above-mentioned gearbox 10 on the concrete drill bit 5 that is connected with output shaft 4.
Master gear 6 is equipped with in the present invention on the output shaft 4 in gearbox 10, be disposed with friction plate 9 and elasticity pressure in the both sides of master gear 6 respectively and pull 8, wherein friction plate 9 be sleeved on the output shaft 4 and elasticity press pull 8 and master gear 6 between, elasticity is pressed and is pulled 8 usefulness splines and be fastenedly connected on output shaft 4.Two elasticity is pressed and is pulled 8 medial surface edge and be attached to respectively on the lateral surface of friction plate 9, and its lateral surface contacts respectively with being threaded in the locknut 12 on the output shaft 4 and being fixed on the interior cover of the bearing 7 on the output shaft 4.On the output shaft 4 of the opposite side of locknut 12 bearing 13 is housed, on the output shaft 4 of the opposite side of bearing 7 concrete drill bit 5 is housed.
Master gear 6 endoporus are fastened with axle sleeve 11, and the endoporus of described axle sleeve 11 is contained on the optical axis of output shaft 4 rotationally.
Described elasticity is pressed and pulled 8 cross section and have butterfly structure, and described butterfly structure is: elasticity is pressed and is pulled 8 medial surface outward flanges and be inclined to inclined-plane C to its center inside depression, and elasticity is pressed and pulled 8 lateral surface and be made up of the plane A of core and the conical surface B of marginal portion; Described elasticity pressure pulls 8 medial surface outward flanges and friction plate 9 is close to.
Described elasticity is pressed and is pulled 8 inclined-plane C and the angle α of its end face is the 2-8 degree; Described elasticity is pressed and is pulled 8 conical surface B and the angle β of its end face is the 20-22 degree.Elasticity is pressed and is pulled 8 plane A and be close in the bearing 7 on the cover end faces, and another elasticity is pressed and pulled 8 plane A and be close on the end face of locknut 12.The size of plane A is set in conjunction with the interior cover of locknut 12 that is contacted and bearing 7.
Described elasticity press pull 8 with output shaft 4 between be connected with spline.
Described friction plate 9 is that thickness is the friction plate of the phosphor-copper material of 0.5-1.5 millimeter, and the inner hole sleeve of described friction plate 9 is on output shaft 4 and optical axis that axle sleeve 11 cooperates.
Below the course of work of the present invention is described.
Motor 1 is connected power supply, and the main shaft 20 of motor 1 rotates and drives 10 3 grades of transmission mechanisms of gearbox and rotates, and the output shaft 4 of gearbox 10 drives concrete drill bit 5 and rotates.The present invention is provided with the elasticity that section has butterfly structure and presses the phosphor-copper friction plate pull with sheet in the master gear both sides of output shaft of gear-box.The normal operation of gearbox is to rely on locknut to compress the elasticity pressure to pull, elasticity makes it elastic deformation after pressing and pulling pressurized, form the contact plane of 2-3 millimeter between its marginal portion and the phosphor-copper friction plate, make the phosphor-copper friction plate be close to the master gear two sides, master gear utilizes the frictional force of two sides that rotation is delivered to the elasticity pressure and pulls and output shaft of gear-box 4, guarantees the normal operation of gearbox.
Be stuck when motionless when concrete drill bit 5 occurring, the output shaft 4 that is connected with concrete drill bit 5 does not rotate, at this moment, the gear that the main shaft 20 of motor 1 still drives in the gearbox is rotated further, the rotatory force of master gear 6 greater than its two sides and elasticity press pull, during frictional force between the phosphor-copper friction plate, master gear 6 dallies on the output shaft that stops operating, like this, avoid existing in the prior art gear to beat the tooth phenomenon effectively, guarantee the concrete drilling hole machine operate as normal.
The present invention is according to the different situations of job site, adjusts locknut and elasticity and presses pressure between pulling, change that the elasticity pressure is pulled and the phosphor-copper friction plate between contact area, guarantee concrete drill bit operate as normal.
Claims (6)
1. concrete drilling hole machine with friction plate, its structure comprises: motor; The gearbox that is connected with motor; Be contained in the concrete drill bit on the output shaft of gear-box; Be contained in the friction plate of master gear both sides on the interior output shaft of gearbox, it is characterized in that described gearbox (10) has three grades of transmission mechanisms; Be contained in output shaft (4) and go up the both sides of master gear (6) and be disposed with friction plate (9) and elasticity respectively and press and pull (8) in gearbox (10), wherein friction plate (9) is contained on the output shaft (4), and the elasticity pressure is pulled (8) and is fastenedly connected on output shaft (4); Described elasticity presses the edge of pulling (8) to be attached to respectively on friction plate (9) lateral surface, and its lateral surface contacts revolvable locknut (12) respectively and is fixed in the bearing (7) on the output shaft (4) and overlaps; Master gear (6) endoporus is fastened with axle sleeve (11), and the endoporus of described axle sleeve (11) is contained on the optical axis of output shaft (4) rotationally.
2. according to the concrete drilling hole machine that has friction plate described in the claim 1, it is characterized in that, described elasticity presses the cross section of pulling (8) to have butterfly structure, described butterfly structure is: the elasticity pressure is pulled (8) medial surface outward flange and is inclined to inclined-plane (C) to its center inside depression, and the elasticity pressure is pulled the lateral surface of (8) and is made up of the plane (A) of core and the conical surface (B) of marginal portion; Described elasticity pressure pulls (8) medial surface outward flange and friction plate (9) is close to.
3. according to the concrete drilling hole machine that has friction plate described in the claim 2, it is characterized in that described elasticity pressure pulls the inclined-plane (C) of (8) and the angle α of its end face is the 2-8 degree; Described elasticity pressure pulls the conical surface (B) of (8) and the angle β of its end face is the 20-22 degree.
4. according to the concrete drilling hole machine that has friction plate described in the claim 1, it is characterized in that described elasticity is pressed to pull between (8) and the output shaft (4) and is connected with spline.
5. according to the concrete drilling hole machine that has friction plate described in the claim 2, it is characterized in that, described friction plate (9) is that thickness is the friction plate of the phosphor-copper material of 0.5-1.5 millimeter, and the inner hole sleeve of described friction plate (9) is on output shaft (4) and optical axis that axle sleeve (11) cooperates.
6. according to the concrete drilling hole machine that has friction plate described in the claim 1, it is characterized in that three grades of transmission mechanisms of described gearbox (10) are: between the output shaft (4) of the main shaft (20) of motor (1) and gearbox (10), be provided with two power transmission shafts (2,3) that have travelling gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100148733A CN100412309C (en) | 2006-07-20 | 2006-07-20 | Concrete drilling hole machine with friction sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100148733A CN100412309C (en) | 2006-07-20 | 2006-07-20 | Concrete drilling hole machine with friction sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1888370A true CN1888370A (en) | 2007-01-03 |
| CN100412309C CN100412309C (en) | 2008-08-20 |
Family
ID=37577658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100148733A Expired - Fee Related CN100412309C (en) | 2006-07-20 | 2006-07-20 | Concrete drilling hole machine with friction sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100412309C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612132A (en) * | 2013-12-04 | 2014-03-05 | 镇江索达联轴器有限公司 | Low-rpm drilling fixture with safety protection function |
| CN105715693A (en) * | 2016-04-25 | 2016-06-29 | 苏州市职业大学 | Safety coupler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2604044Y2 (en) * | 1993-09-03 | 2000-04-10 | 株式会社三協精機製作所 | Clutch device |
| DE19506987A1 (en) * | 1995-02-28 | 1996-08-29 | Zahnradfabrik Friedrichshafen | Slat synchronization |
| CN2329760Y (en) * | 1998-04-17 | 1999-07-21 | 杨福顺 | Concrete drilling core extractor |
| JP3680941B2 (en) * | 2002-01-18 | 2005-08-10 | マックス株式会社 | Concrete drill |
| CN2547943Y (en) * | 2002-04-13 | 2003-04-30 | 何智慧 | Wet multi-lamella clutch for motorcycle |
-
2006
- 2006-07-20 CN CNB2006100148733A patent/CN100412309C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103612132A (en) * | 2013-12-04 | 2014-03-05 | 镇江索达联轴器有限公司 | Low-rpm drilling fixture with safety protection function |
| CN103612132B (en) * | 2013-12-04 | 2016-11-09 | 镇江索达联轴器有限公司 | Slow-speed of revolution safeguard protection boring grab |
| CN105715693A (en) * | 2016-04-25 | 2016-06-29 | 苏州市职业大学 | Safety coupler |
| CN105715693B (en) * | 2016-04-25 | 2019-01-08 | 苏州市职业大学 | A kind of safety coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100412309C (en) | 2008-08-20 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080820 |