CN111109040B - Chain saw adjusting device - Google Patents
Chain saw adjusting device Download PDFInfo
- Publication number
- CN111109040B CN111109040B CN202010067974.7A CN202010067974A CN111109040B CN 111109040 B CN111109040 B CN 111109040B CN 202010067974 A CN202010067974 A CN 202010067974A CN 111109040 B CN111109040 B CN 111109040B
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- gear
- lock nut
- sliding block
- knob
- tensioning
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/08—Felling trees
- A01G23/091—Sawing apparatus specially adapted for felling trees
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Sawing (AREA)
Abstract
The invention discloses a chain saw adjusting device which comprises a cover plate, a guide plate, a knob and a pressing device, wherein the pressing device comprises a first stud, a second stud, a first lock nut, a second lock nut and a braking plate, the first stud and the second stud penetrate through the guide plate, the first lock nut and the second lock nut are respectively connected to the first stud and the second stud and are matched with the braking plate to press the guide plate, the cover plate is positioned below the knob and covers the pressing device, the chain saw adjusting device further comprises a synchronous gear, a gear structure is arranged on the first lock nut and the second lock nut, and the synchronous gear is respectively meshed with the first lock nut and the second lock nut. The first lock nut and the second lock nut are both used for pressing the guide plate, and the braking plate is arranged between the guide plate and the first lock nut and between the braking plate and the second lock nut to play a role in increasing friction force, so that the guide plate can be better pressed. The synchronous gear plays a transmission role, and the gear structures on the first lock nut and the second lock nut are meshed with the synchronous gear to realize synchronous rotation, and after the knob is rotated, the first lock nut and the second lock nut synchronously rotate and compress the guide plate.
Description
Technical Field
The present invention relates to a chain saw, and more particularly, to a chain saw adjusting device.
Background
The chain saw is a garden tool mainly used for felling, and the working principle is to realize cutting action by the rapid movement of a blade on a saw chain. Therefore, the saw chain can generate severe vibration in the use process, and if the saw chain is not adjusted before the use process, and the saw chain can loosen or even separate from the guide plate under the severe vibration in the high-speed movement process of the saw chain, so that the safety accident can occur. Particularly, the vibration generated by the high-power chain saw during operation can loosen the guide plate, so that the risk of the saw chain being separated is higher. The existing saw chain adjusting device generally adopts a single-stud or double-stud structure to fix the guide plate, the adjusting device with the single-stud structure is more suitable for a low-power chain saw, and the adjusting device with the double-stud structure can be better suitable for a high-power chain saw, but the two studs respectively and independently press the guide plate, but the operation is complex, so that improvement is required.
Disclosure of Invention
Aiming at the defect of complicated operation of the saw chain adjusting device with the double-stud structure in the prior art, the invention provides a novel chain saw adjusting device.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The utility model provides a chain saw adjusting device, includes apron, baffle, knob, closing device, the knob with closing device connects, closing device includes first double-screw bolt, second double-screw bolt, first lock female, second lock female, braking vane, first double-screw bolt, second double-screw bolt pass the baffle, first lock female, second lock female connect respectively on first double-screw bolt, second double-screw bolt and with braking vane cooperation compresses tightly the baffle, the apron is located the knob below covers closing device still includes synchronous gear, be equipped with gear structure on first lock female, the second lock female, synchronous gear respectively with first lock female, second lock female meshing.
The first lock nut and the second lock nut are both used for pressing the guide plate, and the braking plate is arranged between the guide plate and the first lock nut and between the braking plate and the second lock nut to play a role in increasing friction force, so that the guide plate can be better pressed. The synchronous gear plays a transmission role, the gear structure on the first lock nut and the second lock nut realizes synchronous rotation through being meshed with the synchronous gear, the first lock nut and the second lock nut synchronously rotate and compress tightly the guide plate after rotating the knob, on the one hand, the synchronous compression process of the first lock nut and the second lock nut synchronously compress tightly the guide plate can enable the guide plate to be stressed uniformly, and on the other hand, the structure is more convenient in operation.
Preferably, the chain saw adjusting device is characterized in that a first sliding block is arranged between the first lock nut and the braking plate, a second sliding block is arranged between the second lock nut and the braking plate, a third sliding block is arranged between the first sliding block and the second sliding block, a first inclined plane is arranged on the first sliding block, a second inclined plane is arranged on the second sliding block, a third inclined plane and a fourth inclined plane are arranged on the third sliding block, the third inclined plane is matched with the first inclined plane, the fourth inclined plane is matched with the second inclined plane, a groove is formed in the braking plate, and the first sliding block, the second sliding block and the third sliding block are all arranged in the groove and are matched with the side wall of the groove.
Because of slight errors in the thread processing technology, the height difference is unavoidable in the matching process of the first stud and the first lock nut and the second stud and the second lock nut. Therefore, the first sliding block, the second sliding block and the third sliding block are arranged, and the first sliding block and the second sliding block can respectively move up and down along the third sliding block under the common cooperation of the side wall of the groove, the third inclined surface, the first inclined surface and the second inclined surface, so that the height difference caused by the screw thread machining error is compensated, and the guide plate is better pressed, so that the invention is more stable.
Preferably, in the chain saw adjusting device, the gear structure includes a first gear and a second gear, the first gear is sleeved on the first lock nut, and the second gear is sleeved on the second lock nut.
The first gear and the second gear are arranged, so that the maintenance and the replacement are convenient, and the maintenance cost of the invention is reduced. The first gear and the second gear are respectively connected with the first lock nut and the second lock nut, so that the first gear and the second gear play roles in driving and driving the first lock nut and the second lock nut to compress the guide plate.
Preferably, in the chain saw adjusting device, the pressing device further includes a first positioning block and a second positioning block, the first positioning block is disposed at the lower end of the first gear and abuts against the first slider, and the second positioning block is disposed at the lower end of the second gear and abuts against the second slider.
The first positioning block plays a limiting role on the first gear, the second positioning block plays a limiting role on the second gear, the positions of the first gear and the second gear can be better limited, meanwhile, the first positioning block can prevent the first gear from being in relative contact with the first lock nut, and the second positioning block can prevent the second gear from being in relative contact with the second lock nut, so that abrasion is reduced, and the service life of the novel gear locking mechanism is prolonged better.
Preferably, the chain saw adjusting device further comprises a tensioning device, the tensioning device comprises an adjusting gear, a tensioning rod and a tensioning pin, the adjusting gear is connected with the tensioning gear and rotates coaxially, the tensioning gear is meshed with the tensioning rod, an external thread structure is arranged on the tensioning rod, an internal thread structure is arranged on the tensioning pin, the tensioning rod is matched with the tensioning pin through the internal thread structure and the external thread structure, and the tensioning pin is matched with the guide plate.
The adjusting gear, the tensioning rod and the tensioning pin are matched with each other to enable the tensioning pin to move on the tensioning rod, and at the moment, the tensioning pin can be matched with the guide plate to control tightness of the saw blade on the guide plate, so that convenience in adjustment of the chain saw is improved.
Preferably, the above chain saw adjusting device, wherein the knob comprises an inner knob and an outer knob, the inner knob and the outer knob are arranged on the same axis, the inner knob is connected with the first lock nut and rotates synchronously with the first lock nut, and the outer knob is meshed with the adjusting gear.
The inner knob acts on the first lock nut, plays a role in increasing the moment arm and facilitating rotation, the outer knob can drive the adjusting gear to rotate, and the space utilization rate can be improved by setting the knob into the structures of the inner knob and the outer knob, so that the invention has more attractive and concise appearance.
Preferably, the chain saw adjusting device further comprises a locking device, wherein the locking device comprises a retaining switch and a return spring, the retaining switch is matched with the return spring to form an upper locking position and an unlocking position, the retaining switch interferes with the outer rotary knob to rotate in the upper locking position, and the retaining switch is not contacted with the outer rotary knob in the unlocking position.
The locking device can lock the outer knob, prevents that outer knob from rotating because of the false triggering and leading to the saw blade not hard up and take place to break away from with the baffle, and wherein the backstop switch is used for cooperating with outer knob and forms locking position and unblock position, and reset spring plays the effect that the backstop switch was switched in locking position and unblock position to the personal safety of user is protected better.
Preferably, in the chain saw adjusting device, the inner knob is provided with a force bar, and the force bar is slidably connected with the inner knob.
The stressing rod is connected to the inner knob to increase the force arm, so that the rotation of the inner knob can be more labor-saving, and the braking plate is more stable to fix the guide plate.
Drawings
FIG. 1 is a schematic view of a knob according to the present invention;
FIG. 2 is a schematic view of a guide plate according to the present invention;
FIG. 3 is a schematic view of a tensioner of the present invention;
FIG. 4 is a cross-sectional view of the compression device of the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
FIG. 6 is a cross-sectional view of the locking device of the present invention in the locked position;
fig. 7 is an exploded view of the present invention.
Detailed Description
The invention is described in further detail below in connection with the accompanying figures 1-7 and the detailed description, which are not intended to limit the invention:
Example 1
The utility model provides a chain saw adjusting device, includes apron 1, baffle 3, knob 2, closing device 4, knob 2 with closing device 4 is connected, closing device 4 includes first double-screw bolt 41, second double-screw bolt 42, first lock female 44, second lock female 45, braking vane 43, first double-screw bolt 41, second double-screw bolt 42 pass baffle 3, first lock female 44, second lock female 45 connect respectively on first double-screw bolt 41, second double-screw bolt 42 and with braking vane 43 cooperation compresses tightly baffle 3, apron 1 is located knob 2 below and cover closing device 4 still includes synchro gear 48, be equipped with gear structure on first lock female 44, the second lock female 45, synchro gear 48 respectively with first lock female 44, second lock female 45 mesh.
During installation, first stud 41 and second stud 42 sequentially penetrate guide plate 3 and braking plate 43, guide plate 3 and braking plate 43 are connected to first stud 41 and second stud 42, first lock nut 44 and second lock nut 45 are respectively connected to first stud 41 and second stud 42, synchronizing gear 48 is meshed with first lock nut 44 and second lock nut 45, cover plate 1 is covered with pressing device 4, and knob 2 penetrates the cover plate and is connected with pressing device 4.
When the invention is used, the knob 2 is rotated, the rotation of the knob 2 enables the first lock nut 44 and the second lock nut 45 to synchronously rotate under the action of the synchronous gear 48, and at the moment, the first lock nut 44 and the second lock nut 45 synchronously ascend or synchronously descend along the threads on the first stud 41 and the second stud 42 respectively, and the braking plate 43 and the guide plate 3 are loosened or pressed.
Preferably, a first sliding block 411 is disposed between the first lock nut 44 and the braking vane 43, a second sliding block 421 is disposed between the second lock nut 45 and the braking vane 43, a third sliding block 49 is disposed between the first sliding block 411 and the second sliding block 421, a first inclined plane 412 is disposed on the first sliding block 411, a second inclined plane 422 is disposed on the second sliding block 421, a third inclined plane 491 and a fourth inclined plane 492 are disposed on the third sliding block 49, the third inclined plane 491 is matched with the first inclined plane 412, the fourth inclined plane 492 is matched with the second inclined plane 422, a groove 431 is disposed on the braking vane 43, the first sliding block 411, the second sliding block 421 and the third sliding block 49 are all disposed in the groove 431, and the first sliding block 411, the second sliding block 421 are matched with the side wall of the groove 431.
Preferably, the gear structure includes a first gear 441 and a second gear 451, the first gear 441 is sleeved on the first lock nut 44, and the second gear 451 is sleeved on the second lock nut 45.
Preferably, the pressing device 4 further includes a first positioning block 46 and a second positioning block 47, the first positioning block 46 is disposed at the lower end of the first gear 441 and abuts against the first slider 411, and the second positioning block 47 is disposed at the lower end of the second gear 451 and abuts against the second slider 421.
Preferably, the device further comprises a tensioning device 6, the tensioning device 6 comprises an adjusting gear 61, a tensioning gear 62, a tensioning rod 63 and a tensioning pin 64, the adjusting gear 61 is connected with the tensioning gear 62 and coaxially rotates, the tensioning gear 62 is meshed with the tensioning rod 63, an external thread structure is arranged on the tensioning rod 63, an internal thread structure is arranged on the tensioning pin 64, the tensioning rod 63 is matched with the tensioning pin 64 through the internal thread structure and the external thread structure, and the tensioning pin 64 is matched with the guide plate 3.
Preferably, the knob 2 includes an inner knob 21 and an outer knob 22, the inner knob 21 and the outer knob 22 are disposed on the same axis, the inner knob 21 is connected to the first lock nut 44 and rotates synchronously with the first lock nut 44, and the outer knob 22 is meshed with the adjusting gear 61.
Preferably, the locking device 5 further comprises a retaining switch 51 and a return spring 52, wherein the retaining switch 51 and the return spring 52 cooperate to form an up-locking position and an unlocking position, in the up-locking position, the retaining switch 51 interferes with the rotation of the outer knob 22, and in the unlocking position, the retaining switch 51 and the outer knob 22 are not contacted with each other.
Preferably, the inner knob 21 is provided with a force bar 211, and the force bar 211 is slidably connected to the inner knob 21.
When a user needs to press the guide plate 3, the inner knob 21 can be rotated clockwise to drive the first lock nut 44 to coaxially rotate, the first gear 441 on the first lock nut 44 drives the synchronous gear 48 to rotate, the synchronous gear 48 drives the second gear 451 to rotate, and simultaneously the first lock nut 44 and the second lock nut 45 respectively rotate clockwise along the first stud 41 and the second stud 42 to move downwards along the threads and respectively squeeze the first positioning block 46 and the second positioning block 47, and the first positioning block 46 and the second positioning block 47 respectively squeeze the first sliding block 411 and the second sliding block 421, so that the first sliding block 411 and the second sliding block 421 jointly act on the braking plate 43 to press the guide plate 3.
When there is a height difference between the first lock nut 44 and the second lock nut 45, if the first lock nut 44 is lower than the second lock nut 45, the first inclined surface 412 on the first slider 411 will collide with the third inclined surface 491 on the third slider 49, and at this time, the third slider 49 moves towards the second slider 421 to cause the fourth inclined surface 492 to collide with the second inclined surface 422, and under the combined action of the side wall of the groove 431, the second slider 421 is lifted upwards to collide with the second lock nut 45, so as to fill the height difference between the first lock nut 44 and the second lock nut 45. Otherwise, if the second lock nut 45 is lower than the first lock nut 44, the first slider 411 is lifted to fill the height difference between the first lock nut 44 and the second lock nut 45.
When the user needs to adjust the tightness of the saw blade, firstly, the stop switch 51 is pressed to enable the stop switch 51 to compress the reset spring 52 to the unlocking position, then the outer knob 22 is rotated, the outer knob 22 drives the adjusting gear 61 to rotate, the adjusting gear 61 drives the tensioning gear 62 to rotate, the tensioning gear 62 drives the tensioning rod 63 to rotate, and the tensioning rod 63 is matched with the threaded structure on the tensioning pin 64, so that the tensioning pin 64 moves left and right on the tensioning rod 63. The tensioning pin 64 controls the extension and retraction of the guide plate 3 to adjust the tightness of the saw blade, and after the adjustment is completed, the backstop switch 51 is released to place the backstop switch 51 in the locking position.
In summary, the foregoing description is only of the preferred embodiments of the present invention, and all equivalent changes and modifications that come within the scope of the present invention are desired to be covered thereby.
Claims (4)
1. The utility model provides a chain saw adjusting device, includes apron (1), baffle (3), knob (2), closing device (4), knob (2) with closing device (4) are connected, closing device (4) are including first double-screw bolt (41), second double-screw bolt (42), first lock female (44), second lock female (45), braking vane (43), first double-screw bolt (41), second double-screw bolt (42) are passed baffle (3), first lock female (44), second lock female (45) are connected respectively on first double-screw bolt (41), second double-screw bolt (42) and with braking vane (43) cooperation compresses tightly baffle (3), apron (1) are located knob (2) below and cover closing device (4), its characterized in that: the novel lock further comprises a synchronous gear (48), gear structures are arranged on the first lock nut (44) and the second lock nut (45), and the synchronous gear (48) is meshed with the first lock nut (44) and the second lock nut (45) respectively;
A first sliding block (411) is arranged between the first locking nut (44) and the braking vane (43), a second sliding block (421) is arranged between the second locking nut (45) and the braking vane (43), a third sliding block (49) is arranged between the first sliding block (411) and the second sliding block (421), a first inclined surface (412) is arranged on the first sliding block (411), a second inclined surface (422) is arranged on the second sliding block (421), a third inclined surface (491) and a fourth inclined surface (492) are arranged on the third sliding block (49), the third inclined surface (491) is matched with the first inclined surface (412), the fourth inclined surface (492) is matched with the second inclined surface (422), grooves (431) are formed in the braking vane (43), and the first sliding block (411), the second sliding block (421) and the third sliding block (49) are all arranged in the grooves (431), and the first sliding block (411), the second sliding block (421) are matched with the side walls (431);
the gear structure comprises a first gear (441) and a second gear (451), the first gear (441) is sleeved on the first lock nut (44), and the second gear (451) is sleeved on the second lock nut (45);
The pressing device (4) further comprises a first positioning block (46) and a second positioning block (47), the first positioning block (46) is arranged at the lower end of the first gear (441) and is in interference with the first sliding block (411), and the second positioning block (47) is arranged at the lower end of the second gear (451) and is in interference with the second sliding block (421);
still include overspeed device tensioner (6), overspeed device tensioner (6) include adjusting gear (61), tensioning gear (62), tensioning pole (63), tensioning round pin (64), adjusting gear (61) with tensioning gear (62) are connected and coaxial rotation, tensioning gear (62) with tensioning pole (63) meshing, be equipped with external screw thread structure on tensioning pole (63), be equipped with internal screw thread structure on tensioning round pin (64), tensioning pole (63) pass through with tensioning round pin (64) internal screw thread structure, external screw thread structure cooperation, tensioning round pin (64) with baffle (3) cooperation.
2. A chain saw adjusting device as set forth in claim 1, wherein: the knob (2) comprises an inner knob (21) and an outer knob (22), the inner knob (21) and the outer knob (22) are arranged on the same axis, the inner knob (21) is connected with the first lock nut (44) and rotates synchronously with the first lock nut (44), and the outer knob (22) is meshed with the adjusting gear (61).
3. A chain saw adjusting device as set forth in claim 2, wherein: the locking device is characterized by further comprising a locking device (5), wherein the locking device (5) comprises a backstop switch (51) and a return spring (52), the backstop switch (51) is matched with the return spring (52) to form an upper locking position and an unlocking position, the backstop switch (51) interferes the outer rotary button (22) to rotate in the upper locking position, and the backstop switch (51) is not contacted with the outer rotary button (22) in the unlocking position.
4. A chain saw adjusting device as set forth in claim 2, wherein: the inner rotary button (21) is provided with a force applying rod (211), and the force applying rod (211) is in sliding connection with the inner rotary button (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067974.7A CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067974.7A CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111109040A CN111109040A (en) | 2020-05-08 |
| CN111109040B true CN111109040B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010067974.7A Active CN111109040B (en) | 2020-01-21 | 2020-01-21 | Chain saw adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111109040B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN201941047U (en) * | 2010-12-14 | 2011-08-24 | 浙江派尼尔机电有限公司 | Chain saw |
| CN203496055U (en) * | 2013-08-30 | 2014-03-26 | 浙江勃朗特工具有限公司 | Tool-free assembling, disassembling and tightening device for gasoline engine chain saw |
| CN204818278U (en) * | 2015-08-28 | 2015-12-02 | 弘大集团有限公司 | Quick tensioning locking device of chain saw saw chain |
| FI126648B (en) * | 2015-09-30 | 2017-03-31 | Ponsse Oyj | Chain saw and method of maneuvering the movements of a saw blade of it |
| CN208734822U (en) * | 2018-08-01 | 2019-04-12 | 苏州劲山电动工具有限公司 | A kind of chain saw tension wheel structure |
| CN211671721U (en) * | 2020-01-21 | 2020-10-16 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
-
2020
- 2020-01-21 CN CN202010067974.7A patent/CN111109040B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101177001A (en) * | 2007-11-23 | 2008-05-14 | 肖长江 | Regulation structure of chain saw chain |
| CN201941047U (en) * | 2010-12-14 | 2011-08-24 | 浙江派尼尔机电有限公司 | Chain saw |
| CN203496055U (en) * | 2013-08-30 | 2014-03-26 | 浙江勃朗特工具有限公司 | Tool-free assembling, disassembling and tightening device for gasoline engine chain saw |
| CN204818278U (en) * | 2015-08-28 | 2015-12-02 | 弘大集团有限公司 | Quick tensioning locking device of chain saw saw chain |
| FI126648B (en) * | 2015-09-30 | 2017-03-31 | Ponsse Oyj | Chain saw and method of maneuvering the movements of a saw blade of it |
| CN208734822U (en) * | 2018-08-01 | 2019-04-12 | 苏州劲山电动工具有限公司 | A kind of chain saw tension wheel structure |
| CN211671721U (en) * | 2020-01-21 | 2020-10-16 | 浙江三锋实业股份有限公司 | Chain saw adjusting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111109040A (en) | 2020-05-08 |
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