CN2483152Y - Multi-purpose self-tapping drill - Google Patents
Multi-purpose self-tapping drill Download PDFInfo
- Publication number
- CN2483152Y CN2483152Y CN 01226852 CN01226852U CN2483152Y CN 2483152 Y CN2483152 Y CN 2483152Y CN 01226852 CN01226852 CN 01226852 CN 01226852 U CN01226852 U CN 01226852U CN 2483152 Y CN2483152 Y CN 2483152Y
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- shaft
- working head
- clutch
- power transmission
- transmission shaft
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- Expired - Fee Related
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Abstract
A multipurpose self-tapping drill uses a disk friction clutch, a driving plate of the drill is combined with a spline shaft thought a spline hole, a drove plate is combined with a passive revolution body (cogging in an outer wheel) through an external gear, one side of a transmission shaft connected with the external wheel is provided with a cavity, a separation cap and a spline sleeve whose inner hole is combined with the spline shaft are sequentially arranged in the cavity from one side of a hexagonal inner hole to one side of the outer wheel, the teeth of the spline sleeve outer circumference is combined with the cogging in the cavity, a separation spring is arranged between the spline sleeve and the separation spring cushion arranged on the spline shaft. The self-tapping drill has the advantages of good working stability, ability of transferring large torque, high transmission efficiency and simple operation.
Description
The utility model relates to a kind of multipurpose self-tapping drill, is a kind of small portable electric tool, can be used for loading and unloading self threading pin or bores the tail nail, screws or unclamp screw or nut, boring etc.
Chinese patent 00239043.4 discloses a kind of multipurpose self-tapping drill, have housing, motor, gear, power transmission shaft, centring ring, retainer spring, axle sleeve and working head, motor is installed in the housing, motor output shaft is that gear shaft and gears engaged constitute decelerator, power transmission shaft and gear coaxial line, the outside of power transmission shaft has hexagonal internal bore, and working head by its installing handle plug-in mounting within it.This self-tapping drill adopts friction clutch, and the driving shaft of friction clutch is a splined shaft, is inserted in the splined hole of gear installation shaft, and driven axle and power transmission shaft are connected.Be equipped with in it in order to supporting and the axle sleeve of the oiliness bearing of axial restraint power transmission shaft is connected with housing by screw thread, and located by the centring ring and the retainer spring that are sleeved on the housing, axle sleeve is stretched out in the outer end of power transmission shaft.Friction clutch is made up of cone of friction, tapered sleeve and cut spring, the larger diameter end of cone of friction is processed with hex-shaped shaft, be inserted in the hexagonal internal bore of gear installation shaft, tapered sleeve is sleeved on outside the cone of friction, its smaller diameter end and power transmission shaft are connected, cone of friction is provided with relative axial center hole with power transmission shaft, and cut spring is housed in it.Its existing problem is: the circular cone type friction clutch needs the bigger cut spring of elastic force, during startup, apply bigger pressure and make the clutch combination to overcome spring force, causes poor stability when starting; Since the structural limitations of circular cone type friction clutch its transmit the ability of moment of torsion, make the power of this self-tapping drill improve and be restricted; When this self-tapping drill is used as electric drill, by tightening axle sleeve, the oiliness bearing in it is pressed on the shaft shoulder of power transmission shaft, the compression cut spring transfers clutch to normally off.Because this pressure from self-tapping drill itself, has caused the certain power consumable; Being used as electric drill and being used as and not only will changing working head in the exchange of other function and also will adjust clutch, operate loaded down with trivial details.
But the purpose of this utility model provides a kind of good operating stability transfer larger torque, transmission efficiency height and easy to operate multipurpose self-tapping drill.
The purpose of this utility model realizes by following technical solution.
A kind of multipurpose self-tapping drill, has housing, motor, gear, power transmission shaft, friction clutch, clutch box and working head, motor is installed in the housing, motor output shaft is that gear shaft and gears engaged constitute decelerator, power transmission shaft and gear coaxial line, the driving shaft of friction clutch is a splined shaft, be inserted in the splined hole of gear installation shaft, driven revolving body and power transmission shaft are connected, the clutch box that is equipped with in it in order to the bearing of supporting shaft is connected with housing by screw thread, power transmission shaft stretches out clutch box, has hexagonal internal bore in it, and working head by hexagon installing handle plug-in mounting within it.Described friction clutch is a friction-disc-clutch, its rotating plate cooperates with splined shaft by splined hole, by moving plate by external tooth and driven revolving body also promptly the teeth groove in the outer drum cooperate, rotating plate and friction plate is housed between the moving plate, power transmission shaft has a cavity with the side that outer drum joins, by outer drum one side of hexagonal internal bore one side direction the separation cap is housed in proper order in the cavity, the spline housing that endoporus can cooperate with splined shaft, teeth groove in tooth on the spline housing excircle and the cavity matches, spline housing and be installed between the cut spring pad on the splined shaft cut spring is housed, the locking nut that is used to lock working head is equipped with in the power transmission shaft outer end.
When working head was drill chuck, the front end of working head hexagon installing handle was a push rod, and push rod withstands on and separates on the cap, and spline housing matches with splined shaft.
When working head is crewdriver attachment, working head is set with sheath outward, sheath is plugged on the clutch box, in the sheath from the inside to the outside order spring collar, spring and magnet steel ring are housed, its outer surface of telescopic of being longer than working head be regular polygon be inserted into the sheath front end with its with being fixed by the magnetic force of magnet steel ring in the hole of shape.
The locking nut front end has tapered bore, by dress split circlip locking working head within it.
The advantage that the utility model is compared with prior art had is: 1. friction-disc-clutch adopts the less spring of spring force just can finish the separation of clutch, and the spring force that need overcome during startup is little, good operating stability, reliability height; 2. the group number that increases friction element can improve the ability of clutch transmission torque, makes the utility model self-tapping drill can be made into the bigger multi-functional self-tapping drill of power; 3. when multi-functional self-tapping drill is used as electric drill, by combining of the side clutch that is installed in separation cap in the power transmission shaft cavity, spline housing and constitutes with the shared cut spring of friction-disc-clutch, solve the transmission problem of self-tapping drill when low pressure and zero load, power loss is little, the transmission efficiency height; 4. the use of side clutch makes that this self-tapping drill only need be by changing different working heads, need not carry out any other adjustment and promptly can realize loading and unloading self threading pin or brill tail nail, screw or unclamp screw or multiple function conversion such as nut, boring, operation is very easy.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
Fig. 1 is the structural representation of the embodiment 1 of the utility model multipurpose self-tapping drill.
Fig. 2 is the structural representation of the embodiment 2 of the utility model multipurpose self-tapping drill.
Fig. 3 is the structural representation of the embodiment 3 of the utility model multipurpose self-tapping drill.
Embodiment 1:
The utility model multipurpose self-tapping drill, as shown in Figure 1, mainly by clutch box 1, splined shaft 2, cut spring pad 3, friction plate 4, rotating plate 5, by moving plate 6, housing 7, motor 8, oiliness bearing 9, gear 10, gear installation shaft 11, single row angular contact ball bearing 12, outer drum 13, cut spring 14, pressure bearing 15, spline housing 16, separate cap 17, power transmission shaft 18, needle bearing 19, locking nut 20, split circlip 21 and working head 22 and form.Motor 8 is installed in the housing 7, and gear 10 is installed on the gear installation shaft 11 that is supported by single row angular contact ball bearing 12 and oiliness bearing 9, and the output shaft of motor 8 is that gear shaft and gear 10 engagements constitute decelerator.Have hexagonal internal bore power transmission shaft 18 and gear 10 coaxial lines, friction-disc-clutch is installed between the two.The driving shaft of clutch is a splined shaft 2, be inserted in the splined hole of gear installation shaft 11, rotating plate 5 cooperates with splined shaft 16 by splined hole, is cooperated with teeth groove in the outer drum 13 by external tooth by moving plate 6, rotating plate 5 and friction plate 4 is housed between the moving plate 6, outer drum 13 is connected with power transmission shaft 18.Power transmission shaft 18 has a cavity with the side that outer drum 13 joins, cavity communicates with hexagonal internal bore by the circular hole of diameter less than hexagonal internal bore, be equipped with in proper order by outer drum 13 1 sides of hexagonal internal bore one side direction in the cavity and separate the spline housing 16 that cap 17, endoporus can cooperate with splined shaft 2, teeth groove in tooth on spline housing 16 excircles and the cavity matches, spline housing 16 and be installed between the cut spring pad 3 on the splined shaft 2 cut spring 14 is housed is equipped with a pressure bearing 15 between cut spring 14 and the spline housing 16.Clutch box 1 is connected with housing 7 by screw thread, and the needle bearing 19 in order to supporting shaft 18 is housed in it, and power transmission shaft 18 stretches out clutch box 1.A locking nut 20 is equipped with in power transmission shaft 18 outer ends, and locking nut 20 front ends have tapered bore, and a split circlip 21 is arranged in it.Working head 22 is inserted into by the hexagon installing handle in the hexagonal internal bore of power transmission shaft 18, by locking nut 20 and split circlip 21 working head 22 is locked.Working head 22 in the present embodiment is magnetic sleeves, and under this duty, spline housing 16 is separated with splined shaft 2.
During work, also be to load onto the hexagon self threading pin in the magnetic sleeve or bore the tail nail at working head 22, starter motor 8, hand-held this self-tapping drill is gently exerted pressure.This moment, cut spring 14 was compressed, the rotating plate 5 of friction clutch, friction plate 4 and be in half hitch by moving plate 6 and close state, working head 22 rotating speeds are not high, self threading pin or bore the tail nail and begin rotation, continue to exert pressure after stable, be screwed into the object that is assembled and tighten until self threading pin.Select the magnetic sleeve of different size, can carry out the dismounting and the installation exercise of common hexagon screw, nut, play the effect of small-sized electric spanner.
Embodiment 2:
Its main part and embodiment 1 are identical, only need working head 22 is replaced by drill chuck, and as shown in Figure 2, this self-tapping drill promptly becomes electric hand drill.Because the front end of these working head 22 hexagon installing handles is a push rod, push rod passes circular hole and withstands on the separation cap 17, and promotion spline housing 16 moves to right and makes cut spring 14 compressions, and spline housing 16 matches with splined shaft 2 and forms a normally closed side clutch.
During work, also be to install drill bit on the drill chuck at working head 22.Starter motor 8 is because the effect working head 22 of side clutch promptly begins to rotate into duty.When the operator when drilled workpiece is exerted pressure, be still main transmission of power person as the friction-disc-clutch of main clutch.But when moment of torsion increases suddenly or pressure when reducing, because the effect of side clutch, drill bit can not stop operating, and makes the utility model can be competent at the work of electric drill fully.
Embodiment 3:
Its main part and embodiment 1 are identical, and side clutch also is in released state, and only needing working head 22 is crewdriver attachment, as shown in Figure 3.This self-tapping drill promptly becomes electric screw driver.For it all can be worked when loading and unloading long screw and manifold screw reliably, be set with sheath 23 outside the working head 22, sheath 23 is plugged on the clutch box 1.Spring collar 24, spring 25 and magnet steel ring 26 are housed in the sheath 23 from the inside to the outside in proper order.Telescopic 27 its outer surfaces of being longer than working head 22 are hexagon, be inserted into sheath 23 front ends with its with being fixed by the magnetic force of magnet steel ring 26 in the hole of shape.
During work, select working head 22 to adopt a word crewdriver attachment or cross screwdriver head according to screw type.Can finish the installing/dismounting work of various self threading pins, brill tail nail, plain screw and screw this moment.Telescopic 27 can be matched arbitrarily according to screw length and screw cap diameter.Because telescopic 27 adopts the hexagon outer surface to cooperate with sheath, can not rotate with working head 22, therefore, surface to be machined can not be worn.Telescopic 27 is fixing by the magnetic force absorption of magnet steel ring 26, when the iron filings of absorption on the telescopic 27 need be cleared up, only need take off telescopic 27, and iron filings promptly can fall voluntarily.
The utility model multipurpose self-tapping drill, the friction plate 4 in its friction-disc-clutch can manufacture one with rotating plate 5 or by moving plate 6.
Claims (4)
1. multipurpose self-tapping drill, has housing, motor, gear, power transmission shaft, friction clutch, clutch box and working head, motor is installed in the housing, motor output shaft is that gear shaft and gears engaged constitute decelerator, power transmission shaft and gear coaxial line, the driving shaft of friction clutch is a splined shaft, be inserted in the splined hole of gear installation shaft, driven revolving body and power transmission shaft are connected, the clutch box that is equipped with in it in order to the bearing of supporting shaft is connected with housing by screw thread, power transmission shaft stretches out clutch box, has hexagonal internal bore in it, working head by hexagon installing handle plug-in mounting within it, it is characterized in that: described friction clutch is a friction-disc-clutch, its rotating plate (5) cooperates with splined shaft (2) by splined hole, also is that the interior teeth groove of outer drum (13) cooperates by moving plate (6) by external tooth and driven revolving body, rotating plate (5) and friction plate (4) is housed between the moving plate (6), power transmission shaft (18) has a cavity with the side that outer drum (13) joins, by outer drum (13) one sides of hexagonal internal bore one side direction separation cap (17) is housed in proper order in the cavity, the spline housing (16) that endoporus can cooperate with splined shaft (2), teeth groove in tooth on spline housing (16) excircle and the cavity matches, spline housing (16) and be installed between the cut spring pad (3) on the splined shaft (2) cut spring (14) is housed, the locking nut (21) that is used to lock working head (22) is equipped with in power transmission shaft (18) outer end.
2. multipurpose self-tapping drill according to claim 1, it is characterized in that: when described working head (22) is drill chuck, the front end of working head (22) hexagon installing handle is a push rod, and push rod withstands on and separates on the cap (17), and spline housing (16) matches with splined shaft (2).
3. multipurpose self-tapping drill according to claim 1, it is characterized in that: when described working head (22) is crewdriver attachment, the outer sheath (23) that is set with of working head (22), sheath (23) is plugged on the clutch box (1), in the sheath (23) from the inside to the outside order spring collar (24), spring (25) and magnet steel ring (26) are housed, its outer surface of telescopic (27) of being longer than working head (22) be regular polygon be inserted into the sheath front end with its with being fixed by the magnetic force of magnet steel ring in the hole of shape.
4. multipurpose self-tapping drill according to claim 1 is characterized in that: described locking nut (20) front end has tapered bore, by a dress split circlip (21) locking working head (22) within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226852 CN2483152Y (en) | 2001-06-11 | 2001-06-11 | Multi-purpose self-tapping drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226852 CN2483152Y (en) | 2001-06-11 | 2001-06-11 | Multi-purpose self-tapping drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483152Y true CN2483152Y (en) | 2002-03-27 |
Family
ID=33642416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01226852 Expired - Fee Related CN2483152Y (en) | 2001-06-11 | 2001-06-11 | Multi-purpose self-tapping drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483152Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433483A (en) * | 2017-04-11 | 2017-12-05 | 广州元凛建筑工程技术开发有限公司 | A kind of novel plate cutting device |
| CN108080677A (en) * | 2018-02-05 | 2018-05-29 | 浙江力友汽车部件有限公司 | A kind of U-bolt hand-held drilling machine |
| CN108436140A (en) * | 2018-03-20 | 2018-08-24 | 陈旭东 | A kind of novel new material process equipment |
| CN108480716A (en) * | 2018-03-20 | 2018-09-04 | 陈旭东 | A kind of new material process equipment |
| EP3628445A1 (en) * | 2018-09-30 | 2020-04-01 | Shanghai Anzi Industrial Co., Ltd | Flexible friction driving device |
| CN114645916A (en) * | 2022-03-18 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Butt joint structure of transmission mechanism and butt joint transmission method thereof |
-
2001
- 2001-06-11 CN CN 01226852 patent/CN2483152Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107433483A (en) * | 2017-04-11 | 2017-12-05 | 广州元凛建筑工程技术开发有限公司 | A kind of novel plate cutting device |
| CN107433483B (en) * | 2017-04-11 | 2019-03-19 | 上海舟润实业有限公司 | A kind of plate cutting device |
| CN108080677A (en) * | 2018-02-05 | 2018-05-29 | 浙江力友汽车部件有限公司 | A kind of U-bolt hand-held drilling machine |
| CN108436140A (en) * | 2018-03-20 | 2018-08-24 | 陈旭东 | A kind of novel new material process equipment |
| CN108480716A (en) * | 2018-03-20 | 2018-09-04 | 陈旭东 | A kind of new material process equipment |
| CN108436140B (en) * | 2018-03-20 | 2018-12-25 | 中嘉卫华（固安）新材料科技有限公司 | A kind of novel new material process equipment |
| EP3628445A1 (en) * | 2018-09-30 | 2020-04-01 | Shanghai Anzi Industrial Co., Ltd | Flexible friction driving device |
| US11110509B2 (en) * | 2018-09-30 | 2021-09-07 | Shanghai Anzi Industrial Co., Ltd. | Flexible friction driving device |
| CN114645916A (en) * | 2022-03-18 | 2022-06-21 | 上汽通用五菱汽车股份有限公司 | Butt joint structure of transmission mechanism and butt joint transmission method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |