CN210025584U - Saw chain tensioning device of rechargeable chain saw - Google Patents
Saw chain tensioning device of rechargeable chain saw Download PDFInfo
- Publication number
- CN210025584U CN210025584U CN201920616584.3U CN201920616584U CN210025584U CN 210025584 U CN210025584 U CN 210025584U CN 201920616584 U CN201920616584 U CN 201920616584U CN 210025584 U CN210025584 U CN 210025584U
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- Prior art keywords
- guide plate
- chain
- saw
- seat
- saw chain
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- Expired - Fee Related
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- 125000006850 spacer group Chemical group 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses a saw chain tensioning device of a charging chain saw, which comprises a machine body, a motor, a battery pack, a guide plate, a saw chain, a cover cap, a tensioning mechanism and a chain wheel, wherein the machine body is provided with a guide plate seat, the guide plate seat is provided with a fixed screw, the guide plate is arranged on the fixed screw, and the saw chain is surrounded on the chain wheel and the guide plate; the tensioning mechanism comprises a guide rod seat, a sliding rod, a thrust spring and a pushing sliding block, wherein the guide rod seat, the sliding rod, the thrust spring and the pushing sliding block are arranged on the machine body, the sliding rod is fixed on the guide rod seat, the thrust spring and the pushing sliding block are sleeved on the sliding rod, the pushing sliding block is provided with a pushing pin, the pushing pin is connected to a guide plate connecting hole of the guide plate, and the thrust spring pushes the guide plate to move outwards to automatically tension the saw chain when the nut is loosened. After adopting above-mentioned structure, have that structural design is reasonable, operation is simple to use, the saw chain elasticity is adjusted conveniently, advantages such as job stabilization is reliable.
Description
Technical Field
The utility model relates to a rechargeable chain saw technical field, especially a saw chain overspeed device tensioner of rechargeable chain saw through simple operation just can automatic tensioning.
Background
The rechargeable chain saw is a felling tool for cutting wood or branches by a saw chain rotating around a chain wheel and a guide plate at a high speed, and the tightness of the saw chain can be changed along with the abrasion of the contact surface of the saw chain and the guide plate in the use process, so that the problem that the sawing efficiency is reduced, even the saw chain is jumped off from the guide plate, and the like can be caused. This requires the user to frequently check the tightness of the saw chain and adjust it if found to be inappropriate. The existing saw chain tensioning can be divided into two types: one is to fix the cover cap and the guide plate on the guide plate seat directly or indirectly by matching the nut and the fixing screw rod, and the structure has the defects that an operator needs to carry an adjusting tool, and the tightness of the saw chain is difficult to control; the other type of the structure is that a rotatable handle is directly adjusted to drive a series of adjusting structures to realize the tensioning of the saw chain and the fixing of the guide plate without the help of tools, and the structure has the problems of complex structure, difficult disassembly and assembly, poor reliability, unreliable locking and the like and needs to be further improved; therefore, many manufacturers and knowledgeable persons develop and develop the products, but no good products are yet available.
Disclosure of Invention
In order to overcome the above problems of the existing rechargeable chain saw, the utility model aims to provide a saw chain tensioning device of the rechargeable chain saw, which has reasonable structural design, simple operation and use, convenient adjustment of the tightness of the saw chain and reliable working stability.
The utility model solves the technical problems and adopts the technical proposal that the utility model comprises a machine body, a motor, a battery pack, a guide plate, a saw chain, a cover cap and a tensioning mechanism, wherein a chain wheel for driving the saw chain to rotate is arranged on an output shaft of the motor, the machine body is provided with a guide plate seat, a fixed screw rod is arranged on the guide plate seat, the guide plate is movably arranged on the fixed screw rod through a guide groove, the saw chain surrounds the chain wheel and the guide plate, the cover cap covers the chain wheel and the guide plate seat and fixes the cover cap and the guide plate on the guide plate seat through the matching of a nut and the fixed screw rod; the tensioning mechanism comprises a guide rod seat, a sliding rod, a thrust spring and a pushing sliding block, wherein the guide rod seat, the sliding rod, the thrust spring and the pushing sliding block are arranged on the machine body, two ends of the sliding rod are correspondingly fixed on the guide rod seat, the thrust spring and the pushing sliding block are sleeved on the sliding rod, the pushing sliding block is provided with a pushing pin, the pushing pin is connected to a guide plate connecting hole of the guide plate, and when a nut is loosened, the thrust spring pushes the guide plate to move outwards through the pushing pin on the pushing sliding block to automatically tension.
The utility model discloses a further scheme, the organism on be equipped with control and promote the spacing seat of regulation about the slider stroke.
The utility model discloses a further scheme, baffle and shroud between be equipped with the spacer bush of cover on clamping screw.
After adopting above-mentioned structure, compare with prior art and have following advantage and effect: firstly because the guide bar seat on the organism, the both ends correspondence of slide bar is fixed on the guide bar seat, thrust spring establishes on the slide bar with promoting the slider cover, it promotes the round pin to be equipped with on the promotion slider, it connects on the baffle connecting hole of baffle to promote the round pin, thrust spring sets up thrust in advance during the assembly, progressively release in saw chain tensioning accommodation process, thrust spring promotes the outside automatic tensioning saw chain that removes of baffle through promoting the round pin on the promotion slider when loosening the nut, then it can to tighten the nut again, moreover, the steam generator is simple in structure reasonable, baffle and saw chain convenient assembling, the locking is reliable, advantages such as with low costs.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a schematic view of the local matching structure of the present invention.
The automatic adjusting device comprises a motor 1, a battery pack 2, a machine body 3, a chain wheel 4, a fixing screw rod 5, a tensioning mechanism 6, a guide groove 7, a guide plate 8, a saw chain 9, a spacer bush 10, a cover 11, a nut 12, a guide plate connecting hole 13, a pushing pin 14, a pushing sliding block 15, a pushing spring 16, a sliding rod 17, a guide plate seat 18, a guide rod seat 19 and a limiting seat 20.
Detailed Description
Fig. 1 and 2 show a specific embodiment of a saw chain tensioning device of a rechargeable chain saw according to the present invention, which includes a machine body 3, a motor 1, a battery pack 2, a guide plate 8, a saw chain 9, a cover 11, and a tensioning mechanism 6, wherein a sprocket 4 for driving the saw chain 9 to rotate is installed on an output shaft of the motor 1, the machine body 3 is provided with a guide plate seat 18, the guide plate seat 18 is provided with a fixing screw 5, the guide plate 8 is movably disposed on the fixing screw 5 through a guide slot 7, the saw chain 9 surrounds the sprocket 4 and the guide plate 8, the cover 11 covers the sprocket 4 and the guide plate seat 18 and fixes the cover 11 and the guide plate 8 on the guide plate seat 18 through a nut 12 cooperating with the fixing screw 5; the tensioning mechanism 6 comprises a guide rod seat 19, a sliding rod 17, a thrust spring 16 and a pushing sliding block 15 which are arranged on the machine body 3, two ends of the sliding rod 17 are correspondingly fixed on the guide rod seat 19, the thrust spring 16 and the pushing sliding block 15 are sleeved on the sliding rod 17, a pushing pin 14 is arranged on the pushing sliding block 15, the pushing pin 14 is connected to a guide plate connecting hole 13 of the guide plate 8, and when the nut 12 is loosened, the thrust spring 16 pushes the guide plate 8 to move outwards through the pushing pin 14 on the pushing sliding block 15 to automatically tension the saw chain 9.
In order to effectively control the stroke, the machine body 3 is provided with a left-right adjusting limit seat 20 for controlling the stroke of the pushing slide block 15.
In order to ensure reliable locking, a spacer bush 10 sleeved on the fixing screw rod 5 is arranged between the guide plate 8 and the cover 11.
The above description is only the specific embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention does not depart from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.
Claims (3)
1. The utility model provides a saw chain overspeed device tensioner of rechargeable chain saw, includes organism (3), motor (1), battery package (2), baffle (8), saw chain (9), shroud (11), straining device (6), installs sprocket (4) that drive saw chain (9) are rotatory on the output shaft of motor (1), characterized by: the machine body (3) is provided with a guide plate seat (18), the guide plate seat (18) is provided with a fixing screw (5), a guide plate (8) is movably arranged on the fixing screw (5) through a guide groove (7), a saw chain (9) surrounds a chain wheel (4) and the guide plate (8), and a cover cap (11) covers the chain wheel (4) and the guide plate seat (18) and is matched with the fixing screw (5) through a nut (12) to fix the cover cap (11) and the guide plate (8) on the guide plate seat (18); straining device (6) including setting up guide bar seat (19) on organism (3), slide bar (17), thrust spring (16), promote slider (15), the both ends correspondence of slide bar (17) is fixed on guide bar seat (19), on thrust spring (16) and promotion slider (15) cover establish slide bar (17), be equipped with on promotion slider (15) and promote round pin (14), it connects on baffle connecting hole (13) of baffle (8) to promote round pin (14), thrust spring (16) promote baffle (8) outwards removal automatic tensioning saw chain (9) through promotion round pin (14) that promote on promotion slider (15) when loosening nut (12).
2. The saw chain tensioner of a rechargeable chain saw as set forth in claim 1, wherein: the machine body (3) is provided with a left-right adjusting limit seat (20) for controlling the stroke of the pushing slide block (15).
3. The saw chain tensioner of a rechargeable chain saw as claimed in claim 1 or 2, wherein: and a spacer bush (10) sleeved on the fixed screw rod (5) is arranged between the guide plate (8) and the cover cap (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616584.3U CN210025584U (en) | 2019-04-30 | 2019-04-30 | Saw chain tensioning device of rechargeable chain saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616584.3U CN210025584U (en) | 2019-04-30 | 2019-04-30 | Saw chain tensioning device of rechargeable chain saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210025584U true CN210025584U (en) | 2020-02-07 |
Family
ID=69363089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920616584.3U Expired - Fee Related CN210025584U (en) | 2019-04-30 | 2019-04-30 | Saw chain tensioning device of rechargeable chain saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210025584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505917A (en) * | 2022-01-13 | 2022-05-17 | 深圳市铁腕创新科技有限公司 | Electric chain saw with variable-frequency brushless motor |
-
2019
- 2019-04-30 CN CN201920616584.3U patent/CN210025584U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505917A (en) * | 2022-01-13 | 2022-05-17 | 深圳市铁腕创新科技有限公司 | Electric chain saw with variable-frequency brushless motor |
| CN114505917B (en) * | 2022-01-13 | 2022-10-28 | 深圳市铁腕创新科技有限公司 | Electric chain saw with variable-frequency brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |