CN104472045A - Sleeve tapping chuck of mini-tiller - Google Patents
Sleeve tapping chuck of mini-tiller Download PDFInfo
- Publication number
- CN104472045A CN104472045A CN201410794312.4A CN201410794312A CN104472045A CN 104472045 A CN104472045 A CN 104472045A CN 201410794312 A CN201410794312 A CN 201410794312A CN 104472045 A CN104472045 A CN 104472045A
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- CN
- China
- Prior art keywords
- transmission shaft
- sleeve
- screw
- power transmission
- taper shank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a sleeve tapping chuck of a mini-tiller. The sleeve tapping chuck comprises a taper shank, a screw barrel, a conical friction plate, a nut, a set screw, a transmission shaft, a steel ball, a clutch sleeve, a fastening screw and an inner sleeve which are arranged from top to bottom in sequence along the axial direction, wherein the upper end of the taper shank has taper; the lower end of the taper shank is fixedly provided with the screw barrel with external threads; the screw barrel is provided with an internal conical surface; the upper end of the transmission shaft is circumferentially connected with the conical friction plate; the outer conical surface of the conical friction plate is matched with the inner conical surface of the screw barrel; the nut is fixed to the transmission shaft by a locking screw; the lower end of the transmission shaft is provided with a groove for accommodating the inner sleeve; the outer edge of the inner sleeve and the side wall of the groove are circumferentially and uniformly provided with a plurality of conical holes for accommodating half steel balls; the upper end of the clutch sleeve is in threaded connection with the lower end of the transmission shaft, and the lower end of the clutch sleeve is provided with an annular groove for accommodating a half steel ball; the side wall of the inner sleeve is provided with the fastening screw. According to the scheme, the sleeve tapping chuck has a simple structure and is convenient and fast, a screw tap can be protected from being broken due to suddenly increasing cutting force, and the production efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of mini-size tillage machine sleeve tap holder.
Background technology
Mini-size tillage machine with small diesel engine or gasoline engine for power, the features such as have lightweight, volume is little, and structure is simple.Mini-size tillage machine is widely used in the nonirrigated farmland, paddy field, orchard etc. on Plain, mountain area, hills.Mix corresponding facility can carry out drawing water, generate electricity, spray the operation such as medicine, spray, also can draw towed vehicle and carry out short-distance transport, mini-size tillage machine freely can be exercised in field, user-friendly and deposit, eliminating the worry that large-scale farm machinery cannot enter mountain area field, is that vast farmers consumer substitutes the cultivated optimal selection of ox.
Mini-size tillage machine is provided with sleeve; so that connected row travelling wheel and power take-off; thread mill drilling is needed in sleeve; to connect by screw fastening on power take-off; but tapping tool of the prior art screw tap in sleeve tapping often can be lost because cutting force increases suddenly, and this have impact on production efficiency greatly.
Summary of the invention
The invention is intended to provide a kind of mini-size tillage machine sleeve tap holder, to enhance productivity.
Mini-size tillage machine sleeve tap holder in this programme, comprise the taper shank set gradually from top to bottom vertically, swivel nut, conical friction sheet, nut, holding screw, power transmission shaft, steel ball, clutch cover, hold-down screw and inner sleeve, taper shank upper end is with tapering, taper shank lower end is fixed with the externally threaded swivel nut of band, swivel nut is with inner conical surface, power transmission shaft upper end circumference is connected with conical friction sheet, the male cone (strobilus masculinus) of conical friction sheet mates with swivel nut inner conical surface, nut is fixed on power transmission shaft by lock-screw, power transmission shaft lower end is provided with the groove holding inner sleeve, inner sleeve outer rim, recess sidewall circumference is equipped with the bellmouth of some accommodations half steel ball, clutch cover threaded upper ends is connected to power transmission shaft lower end, clutch cover lower end is provided with the cannelure of accommodation half steel ball, sidewall of the inside race is provided with hold-down screw.
Screw tap shank can be fixed in inner sleeve by hold-down screw.
During work, taper shank is arranged on machine tool chief axis, when taper shank rotates, drive four pieces of conical friction sheets to rotate, conical friction sheet is pressed on power transmission shaft by swivel nut by nut, so power transmission shaft also together turns round with main shaft, and drive sleeve rotating, so get final product tapping by two steel balls.Turn nut can regulate taper shank to the size of the frictional force of power transmission shaft, and when screw tap cutting force is too large, produces and skid between taper shank and conical friction sheet, protection screw tap is in order to avoid lose because cutting force increases suddenly.This programme structure is simple, convenient and swift, can protect screw tap in order to avoid lose because cutting force increases suddenly, substantially increase production efficiency.
Further, the tapering of taper shank is No. 3 Morse's tapers, and Morse's taper is the international standard of a tapering, for stationary fit accurately to locate.Because tapering is very little, utilize the principle of frictional force, certain moment of torsion can be transmitted, again because be taper fit, so can dismantle easily.In the certain limit of same tapering, workpiece is free to dismounting, operationally can not have influence on result of use again simultaneously.
Further, in power transmission shaft outer rim, the two ends of clutch cover are provided with jump ring, play position-limiting action, prevent clutch cover from departing from power transmission shaft.
Further, power transmission shaft upper end is circumferentially with four holddown grooves, and conical friction sheet is four pieces, and conical friction sheet is inserted in holddown groove fixing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Embodiment
Below by embodiment, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: taper shank 1, swivel nut 2, conical friction sheet 3, nut 4, holding screw 5, power transmission shaft 6, jump ring 7, steel ball 8, clutch cover 9, hold-down screw 10, inner sleeve 11, the conical surface 12.
Embodiment is substantially as shown in Figure 1: mini-size tillage machine sleeve tap holder comprises the taper shank 1, swivel nut 2, conical friction sheet 3, nut 4, holding screw 5, power transmission shaft 6, jump ring 7, steel ball 8, clutch cover 9, hold-down screw 10 and the inner sleeve 11 that set gradually from top to bottom vertically, taper shank upper end is with tapering, the conical surface of taper shank is No. 3 Morse's tapers, Morse's taper is the international standard of a tapering, for stationary fit accurately to locate.Because tapering is very little, utilize the principle of frictional force, certain moment of torsion can be transmitted, again because be taper fit, so can dismantle easily.In the certain limit of same tapering, workpiece is free to dismounting, operationally result of use can not be had influence on again simultaneously, taper shank lower end is fixed with the externally threaded swivel nut of band, swivel nut is with inner conical surface, power transmission shaft upper end circumference is connected with conical friction sheet, power transmission shaft upper end is circumferentially with four holddown grooves, conical friction sheet is four pieces, conical friction sheet is inserted in holddown groove fixing, the male cone (strobilus masculinus) of conical friction sheet mates with swivel nut inner conical surface, nut is fixed on power transmission shaft by lock-screw, power transmission shaft lower end is provided with the groove holding inner sleeve, inner sleeve outer rim, recess sidewall circumference is equipped with the bellmouth of some accommodations half steel ball, clutch cover threaded upper ends is connected to power transmission shaft lower end, in power transmission shaft outer rim, the two ends of clutch cover are provided with jump ring, play position-limiting action, prevent clutch cover from departing from power transmission shaft, clutch cover lower end is provided with the cannelure of accommodation half steel ball, sidewall of the inside race is provided with hold-down screw.
Screw tap shank can be fixed in inner sleeve by hold-down screw.
During work, taper shank is arranged on machine tool chief axis, when taper shank rotates, drive four pieces of conical friction sheets to rotate, conical friction sheet is pressed on power transmission shaft by swivel nut by nut, so power transmission shaft also together turns round with main shaft, and drive sleeve rotating, so get final product tapping by two steel balls.Turn nut can regulate taper shank to the size of the frictional force of power transmission shaft, and when screw tap cutting force is too large, produces and skid between taper shank and conical friction sheet, protection screw tap is in order to avoid lose because cutting force increases suddenly.This programme structure is simple, and convenient and swift, processing ease, can protect screw tap in order to avoid lose because cutting force increases suddenly, substantially increase production efficiency.
Above-described is only embodiments of the invention, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from structure of the present invention, some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. mini-size tillage machine sleeve tap holder, it is characterized in that: comprise the taper shank set gradually from top to bottom vertically, swivel nut, conical friction sheet, nut, holding screw, power transmission shaft, steel ball, clutch cover, hold-down screw and inner sleeve, taper shank upper end is with tapering, taper shank lower end is fixed with the externally threaded swivel nut of band, swivel nut is with inner conical surface, power transmission shaft upper end circumference is connected with conical friction sheet, the male cone (strobilus masculinus) of conical friction sheet mates with swivel nut inner conical surface, nut is fixed on power transmission shaft by lock-screw, power transmission shaft lower end is provided with the groove holding inner sleeve, inner sleeve outer rim, recess sidewall circumference is equipped with the bellmouth of some accommodations half steel ball, clutch cover threaded upper ends is connected to power transmission shaft lower end, clutch cover lower end is provided with the cannelure of accommodation half steel ball, sidewall of the inside race is provided with hold-down screw.
2. mini-size tillage machine sleeve tap holder according to claim 1, is characterized in that: the tapering of taper shank is No. 3 Morse's tapers.
3. mini-size tillage machine sleeve tap holder according to claim 2, is characterized in that: in power transmission shaft outer rim, the two ends of clutch cover are provided with jump ring.
4. mini-size tillage machine sleeve tap holder according to claim 3, it is characterized in that: power transmission shaft upper end is circumferentially with four holddown grooves, conical friction sheet is four pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794312.4A CN104472045A (en) | 2014-12-21 | 2014-12-21 | Sleeve tapping chuck of mini-tiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410794312.4A CN104472045A (en) | 2014-12-21 | 2014-12-21 | Sleeve tapping chuck of mini-tiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104472045A true CN104472045A (en) | 2015-04-01 |
Family
ID=52746772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410794312.4A Withdrawn CN104472045A (en) | 2014-12-21 | 2014-12-21 | Sleeve tapping chuck of mini-tiller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104472045A (en) |
-
2014
- 2014-12-21 CN CN201410794312.4A patent/CN104472045A/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| 王喜祥: "《常用工夹具典型结构图册》", 30 September 1993 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20150401 |
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| WW01 | Invention patent application withdrawn after publication |