CN103104588B - A kind of hollow shaft for garden instrument and processing method thereof - Google Patents
A kind of hollow shaft for garden instrument and processing method thereof Download PDFInfo
- Publication number
- CN103104588B CN103104588B CN201110356336.8A CN201110356336A CN103104588B CN 103104588 B CN103104588 B CN 103104588B CN 201110356336 A CN201110356336 A CN 201110356336A CN 103104588 B CN103104588 B CN 103104588B
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- Prior art keywords
- axle
- endoporus
- hollow shaft
- auxiliary section
- shaft
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Abstract
A kind of hollow shaft for garden instrument (500), this garden instrument (100) comprises the motor (11) with armature shaft, be placed on the belt wheel (12) outside hollow shaft, the flexible axle (40) being placed on the transmission part (13) outside armature shaft and belt wheel and being inserted in hollow shaft, this hollow shaft comprises connected first, second axle (51, 52) and the endoporus of at least two kinds of shapes, be respectively the first endoporus (511) be located in the first axle and the second endoporus (521) be located in the second axle, first axle has for sheathed the first auxiliary section (513) of clutch shaft bearing, the matching hole (514) that aperture is less than the second axle diameter of axle is provided with in this first auxiliary section, second axle is inserted in this matching hole, described flexible axle (40) to be inserted in the second axle and to match with the second endoporus, the procedure of described hollow shaft is simple and processing cost is lower.
Description
Technical field
The present invention relates to a kind of hollow shaft, refer in particular to a kind of transmission hollow shaft be used on garden instrument.
Background technique
The torque of garden instrument as produced when the motor internal of grass-mowing machine works has its armature shaft to pass to a transmission shaft by V belt translation, this transmission shaft is hollow shaft, be provided with two kinds of different hole shapes in it, be generally connected circular hole and matching hole, wherein this matching hole is mostly square hole structure.Plug a flexible axle in this transmission shaft, this flexible axle has the square structure matched with described matching hole, and transmission shaft like this can drive this rotating soft axle, and then drives the moving head be connected with flexible axle to rotate, thus garden instrument is started working.
Endoporus due to described transmission shaft has two kinds of different hole shapes, therefore this endoporus cannot time processing shaping, need through multiple working procedure, as circular hole can be gone out by first car, then pull out matching hole, it is lower so to process not only machining accuracy, and broaching tool easily weares and teares, need often to change, therefore processing cost is higher.So, need a kind of hollow shaft of improvement to solve the problem.
Summary of the invention
The object of the present invention is to provide a kind of processing technology simple and lower-cost hollow shaft.
To achieve these goals, the present invention adopts following technological scheme: a kind of hollow shaft for garden instrument, this garden instrument comprises the motor with armature shaft, be placed on the belt wheel outside hollow shaft, the flexible axle being placed on the transmission part outside armature shaft and belt wheel and being inserted in hollow shaft, this hollow shaft comprises connected first, the endoporus of the second axle and at least two kinds of shapes, be respectively the first endoporus be located in the first axle and the second endoporus be located in the second axle, the diameter of the second described endoporus is less than the diameter of the first endoporus, described first axle has for the first sheathed auxiliary section of clutch shaft bearing, first axle has for the second sheathed auxiliary section of the second bearing, the matching hole that aperture is less than the second axle diameter of axle is provided with in this first auxiliary section, second axle is inserted in this matching hole, described flexible axle to be inserted in the second axle and to match with the second endoporus, the main part of described first axle has from its outward extending elongated portion in the second auxiliary section, and described flexible axle can move axially to the first endoporus from the second endoporus and outwards shift out outside described elongated portion.
To achieve these goals, the present invention also can adopt following technological scheme: a kind of processing method of hollow shaft, there is in this hollow shaft the endoporus of at least two kinds of shapes, be respectively the first endoporus and the second endoporus, it is characterized in that, this hollow shaft has elongated portion, and described first endoporus extends to described elongated portion, and this processing method comprises the following steps:
A, this hollow shaft is divided into first axle with the first endoporus and second axle with the second endoporus;
B, turned blank according to designing requirement size Selection first axle, and on this blank, process the external frame of the first endoporus, the matching hole be connected with the first endoporus and the first axle, the aperture of this matching hole is less than the diameter of axle of the second axle; Powder metallurgy processing method is adopted to process the second axle;
C, the second axial compression to be entered in the matching hole of the first axle, make first, second axle affixed integral and form described hollow shaft.
Compared with prior art, hollow shaft is divided into first axle with the first endoporus and second axle with the second endoporus by the present invention, the effect reach simplified processing process, reducing costs.
Accompanying drawing explanation
Fig. 1 is the cut-away view of the garden instrument using hollow shaft of the present invention.
Fig. 2 is the stereogram of hollow shaft of the present invention.
Fig. 3 is the sectional view along A-A direction in Fig. 2.
Fig. 4 is the exploded view of hollow shaft of the present invention.
Embodiment
Be below the description to best mode for carrying out the invention, garden instrument is a grass-mowing machine 100 in this embodiment.Shown in ginseng Fig. 1, this grass-mowing machine 100 comprises casing 10, handle 20, moving head (not shown), the stock 30 connecting moving head and the flexible axle 40 be located in stock.Be provided with the driving mechanism of garden instrument in casing 10 inside, comprise motor 11, belt wheel 12, transmission part 13 and the hollow shaft 500 integrated with belt wheel 12 with armature shaft, described flexible axle 40 is so removable that to be inserted in this hollow shaft 500.Each element of driving mechanism is assembled on a supporting frame 14, and in aggregates with supporting frame 14 groups, and this supporting frame 14 is fixed on the casing 10 of garden instrument.
Shown in ginseng Fig. 2 to Fig. 4, hollow shaft 500 is made up of two-part, and be respectively the first axle 51 and the second axle 52 being provided with the second endoporus 521 that are provided with the first endoporus 511, wherein said first endoporus 511 is circular hole, and described second endoporus 521 is axially through square opening.The position that described flexible axle 40 matches with the second endoporus 521 also has the square structure corresponding with described square opening, flexible axle 40 can be driven to rotate together when hollow shaft 500 like this rotates, and then drives moving head rotary work.First axle 51 comprises connected main part 512 and the first auxiliary section 513, the inner correspondence of main part 512 arranges described first endoporus 511, on first auxiliary section 513, cover has clutch shaft bearing 15 (see Fig. 1), and its inner correspondence is provided with aperture is greater than the first endoporus 511 but the matching hole 514 being less than second axle 52 diameter of axle.Second axle 52 corresponding inserted in this matching hole 514, thus forms described hollow shaft 500 jointly with the first axle 51.The elongated portion 517 main part 512 being also provided with second auxiliary section 515 relative with the first auxiliary section 513, knurled portions 516 between first, second auxiliary section 513,515 and extending outward from the second auxiliary section 515.On this second auxiliary section 515, cover has the second bearing 16 (see Fig. 1), and this knurled portions 516 matches with described belt wheel 12.In addition, one end that main part 512 is connected with the first auxiliary section 513 has the bulge loop 518 that the diameter of axle goes out greatly other position diameters of axle on the first axle 21, is resisted against on this bulge loop 518 when clutch shaft bearing 15 is assembled to the first auxiliary section 513.
Shown in ginseng Fig. 2 to Fig. 4, this hollow shaft 500 adds man-hour, first according to design drawing, hollow shaft 500 is divided into two sections in above-mentioned first auxiliary section 513 and the second axle 52 connecting place (see position, Fig. 3 dotted line place); Then the turned blank of the first axle 51 is selected, blank can be the selected hollow elongated tube of maximum diameter according to the first axle 51 (bulge loop 518 place diameter is the maximum diameter of the first axle 51 described in invention) and minimum-value aperture (aperture of the first endoporus 511 is the minimum-value aperture of the first axle 51 in the present invention), then requires this hollow elongated tube to be cut into shaft part according to the design size of the first axle 51; Before processing first axle 51, Tempering and Quenching is carried out to described hollow shaft section, make shaft part inner materials evenly so that following process; Endoporus and the external frame of the first axle 51 can be processed after heat treatment, complete roughing operation; Carrying out the heat treatment of quenching blackout to completing rough machined first axle 51, making the first axle 51 have suitable intensity and hardness; Finishing is carried out at position (first, second auxiliary section 513,515 as matched with first, second bearing 15,16) higher to quality of fit required on the first axle 51 after heat treatment completes, and makes it to reach designing requirement size; In addition, the second axle 52 synchronously can be processed with the first axle 51, and according to the design size requirement of the second axle 52, the second axle 52 is shaped by powder metallurgy processing method; The diameter of axle due to the second axle 52 is greater than the aperture of matching hole 514 on the first axle 51, and therefore finally adopt relevant device to be pressed in matching hole 514 by the second axle 52, make to form drive fit between first, second axle 51,52, hollow shaft 500 like this just machines.
In the process of above-mentioned processing first axle 51, endoporus manufacturing procedure first processes the first endoporus 511 to reprocess matching hole 514, and the first endoporus 511 dimension precision requirement is lower, be shaped by boring, matching hole 514 coordinates with the second axle, and machining accuracy is relatively high, and fine finishing can be adopted to be shaped.Certain surplus need be left follow-uply accurately machinedly to carry out during roughing external frame.After endoporus and external frame machine, also need to carry out annular knurl process to described knurled portions 516.Fine finishing after the heat treatment of above-mentioned quenching blackout completes can adopt emery wheel to carry out peripheral milling.
Be more than the description being easier to understand the preferred forms that the present invention carries out for ease of those skilled in the art, but the technological scheme that employing is equal to or equivalent transformation mode obtains under design concept of the present invention instructs all should within protection scope of the present invention.
Claims (4)
1. the hollow shaft for garden instrument, this garden instrument comprises the motor with armature shaft, be placed on the belt wheel outside hollow shaft, the flexible axle being placed on the transmission part outside armature shaft and belt wheel and being inserted in hollow shaft, it is characterized in that: this hollow shaft comprises connected first, the endoporus of the second axle and at least two kinds of shapes, be respectively the first endoporus be located in the first axle and the second endoporus be located in the second axle, the diameter of the second described endoporus is less than the diameter of the first endoporus, described first axle has for the first sheathed auxiliary section of clutch shaft bearing, first axle has for the second sheathed auxiliary section of the second bearing, the matching hole that aperture is less than the second axle diameter of axle is provided with in this first auxiliary section, second axle is inserted in this matching hole, described flexible axle to be inserted in the second axle and to match with the second endoporus, the main part of described first axle has from its outward extending elongated portion in the second auxiliary section, and described flexible axle can move axially to the first endoporus from the second endoporus and outwards shift out outside described elongated portion.
2. hollow shaft as claimed in claim 1, is characterized in that: described first axle has the main part be connected with the first auxiliary section, and it is interior and be connected with described matching hole that described first endoporus is located at this main part, and the aperture of matching hole is greater than the aperture of the first endoporus.
3. hollow shaft as claimed in claim 1, is characterized in that: the main part of described first axle is provided with for the second sheathed auxiliary section of the second bearing and the knurled portions between first, second auxiliary section, and described belt wheel matches with this knurled portions.
4. hollow shaft as claimed in claim 1, is characterized in that: described garden instrument comprises casing and is connected to the supporting frame of casing, this support
frameconnect described motor and hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356336.8A CN103104588B (en) | 2011-11-10 | 2011-11-10 | A kind of hollow shaft for garden instrument and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356336.8A CN103104588B (en) | 2011-11-10 | 2011-11-10 | A kind of hollow shaft for garden instrument and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103104588A CN103104588A (en) | 2013-05-15 |
| CN103104588B true CN103104588B (en) | 2015-08-12 |
Family
ID=48312702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110356336.8A Expired - Fee Related CN103104588B (en) | 2011-11-10 | 2011-11-10 | A kind of hollow shaft for garden instrument and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103104588B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750844B (en) * | 2016-04-29 | 2018-04-06 | 沈阳透平机械股份有限公司 | Compressor hollow spindle processing method |
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|---|---|---|---|---|
| US4733471A (en) * | 1984-05-08 | 1988-03-29 | Hawaiian Motor Co. | Tool drive assembly and clamp |
| EP1508267A1 (en) * | 2003-08-19 | 2005-02-23 | Arnetoli Motor Di Arnetoli Fabrizio | Device for cutting vegetation or for other applications, with electric motor and reducing gear |
| CN101433146A (en) * | 2007-11-16 | 2009-05-20 | 苏州宝时得电动工具有限公司 | Hand held cutting tool |
| JP2010166892A (en) * | 2009-01-20 | 2010-08-05 | Nishigaki Kogyo Kk | Handheld power working machine and joint for power transmission |
| CN201714827U (en) * | 2010-07-14 | 2011-01-19 | 吕元之 | Powder metallurgy core shaft for saloon |
| CN102042297A (en) * | 2009-10-19 | 2011-05-04 | 株洲天力锻业有限责任公司 | Alloy steel hollow car axle and manufacturing process thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4223962C1 (en) * | 1992-07-21 | 1993-12-16 | Stihl Maschf Andreas | Power-driven vegetation trimmer - has interchangeable bearing in shaft-tube end secured by radial lugs protruding inside tube |
| CA2178170A1 (en) * | 1995-06-05 | 1996-12-06 | Gregory A. Zurbuchen | Composite socket tool |
| DE102006021446A1 (en) * | 2006-05-09 | 2007-11-15 | Schaeffler Kg | Shaft of a water pump of an internal combustion engine |
| JP5138501B2 (en) * | 2008-08-11 | 2013-02-06 | 株式会社マキタ | Brush cutter with removable battery pack |
| JP5024681B2 (en) * | 2008-09-10 | 2012-09-12 | ニシガキ工業株式会社 | Handheld brush cutter |
| CN201444760U (en) * | 2009-06-30 | 2010-05-05 | 陈寅 | Rear-mounted motor grass mower |
| CN101886158B (en) * | 2010-07-13 | 2013-01-30 | 烟台首钢东星集团有限公司 | Manufacturing method of shaft lever part for engineering machinery |
-
2011
- 2011-11-10 CN CN201110356336.8A patent/CN103104588B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733471A (en) * | 1984-05-08 | 1988-03-29 | Hawaiian Motor Co. | Tool drive assembly and clamp |
| EP1508267A1 (en) * | 2003-08-19 | 2005-02-23 | Arnetoli Motor Di Arnetoli Fabrizio | Device for cutting vegetation or for other applications, with electric motor and reducing gear |
| CN101433146A (en) * | 2007-11-16 | 2009-05-20 | 苏州宝时得电动工具有限公司 | Hand held cutting tool |
| JP2010166892A (en) * | 2009-01-20 | 2010-08-05 | Nishigaki Kogyo Kk | Handheld power working machine and joint for power transmission |
| CN102042297A (en) * | 2009-10-19 | 2011-05-04 | 株洲天力锻业有限责任公司 | Alloy steel hollow car axle and manufacturing process thereof |
| CN201714827U (en) * | 2010-07-14 | 2011-01-19 | 吕元之 | Powder metallurgy core shaft for saloon |
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| Publication number | Publication date |
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| CN103104588A (en) | 2013-05-15 |
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