CN102562976A - Chain tensioning mechanism of lopper saw - Google Patents
Chain tensioning mechanism of lopper saw Download PDFInfo
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- CN102562976A CN102562976A CN2012100028169A CN201210002816A CN102562976A CN 102562976 A CN102562976 A CN 102562976A CN 2012100028169 A CN2012100028169 A CN 2012100028169A CN 201210002816 A CN201210002816 A CN 201210002816A CN 102562976 A CN102562976 A CN 102562976A
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- chain
- knob
- gao zhiju
- tensioning mechanism
- tension
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Abstract
The invention discloses a chain tensioning mechanism of a lopper saw, which comprises a chain plate arranged at the front end of a lopper saw main body, wherein the chain plate and a U-shaped sliding block are locked together through a bolt to form a sliding component for tensioning the chain; an adjusting end is covered outside the sliding component of the lopper saw main body; a tensioning knob is arranged on the adjusting end cover; the tensioning knob rotates and drives the sliding component to slide towards the front part so as to tension the chain; the opening of the U-shaped sliding block in the sliding component is toward the front part of the chain plate; outer meshing teeth are arranged at the inner side of one side of the U-shaped sliding block, and a pinion is arranged at the middle part of the tensioning knob to be matched with the outer meshing teeth of the U-shaped sliding block. According to the chain tensioning mechanism, the chain is tensioned by adopting meshing transmission of the U-shaped sliding block with the outer meshing teeth at the inner side and the pinion. The gear selects an involute cylindrical gear, the gear strength is ensured by selecting the most probable modulus, so that the gear can adopt a powder metallurgical part which is not mechanically processed. Therefore, the manufacturing cost is saved.
Description
Technical field
The present invention relates to a kind of garden instrument, especially the chain tensioning mechanism of Gao Zhiju (comprising electric chain saw or chain saw).
Background technique
In the existing technology, the chain tensioning mechanism of garden instrument Gao Zhiju (comprising electric chain saw or chain saw) has various ways both at home and abroad, as adopting circular cone umbrella gear transmission principle; Spiral (screw thread) transmission principle, quadrature helical gear transmission principle, the gear rack transmission principle; Adopt in addition involute spiral the wheel principle etc. kinds of schemes, still, the most more complicated of structure; Cost is higher, and performance is good inadequately.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of Gao Zhiju chain tensioning mechanism, and excellent performance reduces manufacture cost, and rational in infrastructure simple.
For solving the problems of the technologies described above; The present invention adopts following technological scheme: a kind of Gao Zhiju chain tensioning mechanism, comprise the carrier bar that is installed on the Gao Zhiju body front end, and chain is located in the key way of carrier bar; It is characterized in that: said carrier bar and U-shaped slide block lock together the slide member of common composition tension chain through screw; Said Gao Zhiju main body is covered with the adjusting end cap at slide member, and the adjustable side covers and is provided with tension knob, thereby the tension knob rotation drives slide member to front portion slip tension chain; The said tension knob outside is provided with and compresses knob, compresses the knob rotation tension knob, adjusting end cap and carrier bar are fixed together.
As preferably, the U-shaped slide block opening in the said slide member is towards carrier bar the place ahead, and a U-shaped slide block wherein side inboard is provided with the outer gearing tooth, and said tension knob middle part is installed a small gear and cooperated with U-shaped slide block outer gearing tooth.
As preferably, be provided with a nut in the said Gao Zhiju main body, a screw rod cooperates with nut thread after passing tension knob, small gear and carrier bar, said screw rod outer end with compress knob and fix.
As preferably, be provided with a deep gouge in the middle part of the said adjusting end cap outboard end face, said tension knob inner side end is a flanged surface, and flanged surface cooperates with deep gouge, and outstanding entering of small gear at said tension knob middle part regulated in the end cap.
As preferably, the deep gouge bottom at said adjusting end cap outboard end face middle part is provided with locking groove, and said tension knob inner side end is provided with locking salient point, and locking groove cooperates locking with locking salient point.
As preferably, be provided with protruding rib around said U-shaped slide block in the said adjusting end cap, said rib roof pressure is on carrier bar.
As preferably, said tension knob outside end face is provided with a circle chimb, saidly compresses the knob middle part and outer rim is outstanding to the inside, and wherein the outer rim projecting height is pressed in the tension knob chimb inboard groove outer rim elastic top greater than the middle part projecting height.
As preferably, be provided with heat insulation backing plate between said carrier bar and Gao Zhiju main body.
As preferably, said U-shaped slide block is established a side edge length of outer gearing tooth greater than its opposed side edges.
As preferably, said Gao Zhiju is electric chain saw or chain saw.
U-shaped slide block and pinion transmission that the present invention adopts the inboard to be provided with the outer gearing tooth realize chain tension; Gear is selected involute cylindrical gear for use; Select for use the modulus of maximum possible to guarantee the strength of gear teeth, thereby gear can adopt the metallurgical part of on-mechanical processed powders, has therefore practiced thrift manufacture cost; And the drive mechanism excellent performance of U-shaped slide block and pinion transmission, rational in infrastructure simple.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described:
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a side schematic view of the present invention;
Fig. 3 assembles schematic representation for the present invention;
Fig. 4 is the tension knob schematic representation;
Fig. 5 is for regulating the end cap schematic representation;
Fig. 6 is a U-shaped slide block schematic representation.
Embodiment
To shown in Figure 6,, comprise the carrier bar 2 that is installed on Gao Zhiju main body 1 front end like Fig. 1 for a kind of Gao Zhiju chain tensioning mechanism of the present invention; Chain 23 is located in the key way of carrier bar; Said carrier bar 2 locks together through screw 22 with U-shaped slide block 21, forms the slide member of tension chain jointly, and said Gao Zhiju main body is covered with at slide member and regulates end cap 5; The adjustable side covers and is provided with tension knob 3; Thereby tension knob rotates and drives slide member to front portion slip tension chain, and the said tension knob outside is provided with and compresses knob 4, compresses the knob rotation tension knob, adjusting end cap and carrier bar are fixed together.U-shaped slide block 21 openings in the said slide member are towards carrier bar the place ahead; A U-shaped slide block wherein side inboard is provided with outer gearing involute cylinder tooth (tooth of gear is only taken from one section tooth of complete gear wheel) here, and said tension knob middle part is installed a small gear 31 and cooperated with U-shaped slide block outer gearing tooth.Be provided with in the said Gao Zhiju main body and cooperate with nut thread after a nut 42, one screw rods 41 pass tension knob, small gear and carrier bar, said screw rod outer end with compress knob and fix.
Said adjusting end cap outboard end face middle part is provided with a deep gouge 51, and said tension knob inner side end is a flanged surface, and flanged surface cooperates with deep gouge, and outstanding entering of small gear at said tension knob middle part regulated in the end cap.The deep gouge bottom at said adjusting end cap outboard end face middle part is provided with locking groove 53, and said tension knob inner side end is provided with locking salient point 32, and locking groove cooperates locking with locking salient point.Be provided with protruding rib 52 around said U-shaped slide block in the said adjusting end cap, said rib roof pressure is on carrier bar.Said tension knob outside end face is provided with a circle chimb, saidly compresses the knob middle part and outer rim is outstanding to the inside, and wherein the outer rim projecting height is pressed in the tension knob chimb inboard groove outer rim elastic top greater than the middle part projecting height.Be provided with heat insulation backing plate 11 between said carrier bar and Gao Zhiju main body.Said U-shaped slide block is established a side edge length of outer gearing tooth greater than its opposed side edges.Said Gao Zhiju is electric chain saw or chain saw.
Installation process of the present invention is that with screw 22 and carrier bar lock jail (tooth of gear is only taken from one section tooth of complete gear wheel here), chain 23 is loaded in the key way of carrier bar with U-shaped slide block 21 (the involute cylinder gearwheel that promptly is used for outer gearing).Earlier the chain board component is lain on the heat insulation backing plate 11 of main body during use; One end of chain hangs on the sprocket 12, covers to regulate end cap 5 again, further will be pressed into the circular hole center of regulating end cap again with the tension knob 3 of small gear 31; The screw rod 41 that further will compress knob 4 is again aimed at the center hole of tension knob; Turn clockwise and can long bolt be screwed in the nut 42 in the Gao Zhiju main body, thereby with chain board component, tension knob; Compressing knob all is fixed on the Gao Zhiju main body; But not locked, this moment can be with the chain tension on the carrier bar to the tension knob that turns clockwise, and the tension chain continued compresses knob to turning clockwise then locked with carrier bar to revolving till motionless.Discharge if desired or the replacing chain, then need first inhour rotatably compress knob.
Claims (10)
1. Gao Zhiju chain tensioning mechanism; Comprise the carrier bar (2) that is installed on Gao Zhiju main body (1) front end; Chain (23) is located in the key way of carrier bar, it is characterized in that: a said carrier bar and a U-shaped slide block (21) lock together the slide member of common composition tension chain through screw, and said Gao Zhiju main body is covered with at slide member and regulates end cap (5); The adjustable side covers and is provided with tension knob (3); Thereby tension knob rotates and drives slide member to front portion slip tension chain, and the said tension knob outside is provided with and compresses knob (4), compresses the knob rotation tension knob, adjusting end cap and carrier bar are fixed together.
2. a kind of Gao Zhiju chain tensioning mechanism according to claim 1; It is characterized in that: U-shaped slide block (21) opening in the said slide member is towards carrier bar the place ahead; A U-shaped slide block wherein side inboard is provided with the outer gearing tooth, and said tension knob middle part is installed a small gear (31) and cooperated with U-shaped slide block outer gearing tooth.
3. a kind of Gao Zhiju chain tensioning mechanism according to claim 2; It is characterized in that: be provided with a nut (42) in the said Gao Zhiju main body; One screw rod (41) cooperates with nut thread after passing tension knob, small gear and carrier bar, said screw rod outer end with compress knob and fix.
4. a kind of Gao Zhiju chain tensioning mechanism according to claim 3; It is characterized in that: said adjusting end cap outboard end face middle part is provided with a deep gouge (51); Said tension knob inner side end is a flanged surface; Flanged surface cooperates with deep gouge, and outstanding entering of small gear at said tension knob middle part regulated in the end cap.
5. a kind of Gao Zhiju chain tensioning mechanism according to claim 4; It is characterized in that: the deep gouge bottom at said adjusting end cap outboard end face middle part is provided with locking groove (53); Said tension knob inner side end is provided with locking salient point (32), and locking groove cooperates locking with locking salient point.
6. a kind of Gao Zhiju chain tensioning mechanism according to claim 5 is characterized in that: be provided with protruding rib (52) around said U-shaped slide block in the said adjusting end cap, said rib roof pressure is on carrier bar.
7. a kind of Gao Zhiju chain tensioning mechanism according to claim 5; It is characterized in that: said tension knob outside end face is provided with a circle chimb; Saidly compress knob middle part and outer rim is outstanding to the inside, wherein the outer rim projecting height is pressed in the tension knob chimb inboard groove outer rim elastic top greater than the middle part projecting height.
8. a kind of Gao Zhiju chain tensioning mechanism according to claim 5 is characterized in that: be provided with heat insulation backing plate (11) between said carrier bar and Gao Zhiju main body.
9. a kind of Gao Zhiju chain tensioning mechanism according to claim 5 is characterized in that: said U-shaped slide block is established a side edge length of outer gearing tooth greater than its opposed side edges.
10. a kind of Gao Zhiju chain tensioning mechanism according to claim 1 is characterized in that: said Gao Zhiju is electric chain saw or chain saw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100028169A CN102562976A (en) | 2012-01-06 | 2012-01-06 | Chain tensioning mechanism of lopper saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100028169A CN102562976A (en) | 2012-01-06 | 2012-01-06 | Chain tensioning mechanism of lopper saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562976A true CN102562976A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100028169A Pending CN102562976A (en) | 2012-01-06 | 2012-01-06 | Chain tensioning mechanism of lopper saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562976A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007045082A (en) * | 2005-08-12 | 2007-02-22 | Hitachi Koki Co Ltd | Tension adjusting mechanism of chain saw |
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN201011381Y (en) * | 2007-01-23 | 2008-01-23 | 宁波鑫晟工具有限公司 | Chain tensioning and locking device of electric chain saw |
| CN201586790U (en) * | 2009-12-16 | 2010-09-22 | 浙江三锋工具制造有限公司 | Saw chain tension adjusting device |
| CN202431861U (en) * | 2012-01-06 | 2012-09-12 | 浙江亚特电器有限公司 | Chain straining device of lopper saw |
-
2012
- 2012-01-06 CN CN2012100028169A patent/CN102562976A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007045082A (en) * | 2005-08-12 | 2007-02-22 | Hitachi Koki Co Ltd | Tension adjusting mechanism of chain saw |
| CN2920593Y (en) * | 2006-07-10 | 2007-07-11 | 黄理 | Improved chain saw |
| CN201011381Y (en) * | 2007-01-23 | 2008-01-23 | 宁波鑫晟工具有限公司 | Chain tensioning and locking device of electric chain saw |
| CN201586790U (en) * | 2009-12-16 | 2010-09-22 | 浙江三锋工具制造有限公司 | Saw chain tension adjusting device |
| CN202431861U (en) * | 2012-01-06 | 2012-09-12 | 浙江亚特电器有限公司 | Chain straining device of lopper saw |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12053832B2 (en) | 2021-02-03 | 2024-08-06 | Techtronic Cordless Gp | Chainsaws |
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Application publication date: 20120711 |