CN103990832A - Stepless speed regulating device for electric drill - Google Patents
Stepless speed regulating device for electric drill Download PDFInfo
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- CN103990832A CN103990832A CN201410263558.9A CN201410263558A CN103990832A CN 103990832 A CN103990832 A CN 103990832A CN 201410263558 A CN201410263558 A CN 201410263558A CN 103990832 A CN103990832 A CN 103990832A
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- roller
- speed
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- driving
- guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/02—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a stepless speed regulating device for an electric drill. The stepless speed regulating device for the electric drill comprises a driving motor, a driving taper roller and a driven taper roller. The driving taper roller and the driven taper roller are rotationally installed between an upper fixing board and a lower fixing board which are arranged in parallel. The driving taper roller and the driven taper roller are arranged in the opposite directions with the same taper. A speed regulating belt is arranged between the driving taper roller and the driven taper roller in a sleeved mode and connected with a speed regulating guide device. The speed regulating guide device is connected with a speed regulating driving device. The driven taper roller is connected with a drill bit through a gearbox. Compared with a traditional electric bench drill with the fixed rotating speed in the prior art, under the condition that the power of the driving motor is not changed, the rotating speed can be smoothly changed in a stepless mode, a speed regulating mechanism is the speed regulating driving device, in the process of use, a worker can change the rotating speed of the drill bit in time according to the requirements of the worker, the stepless speed regulating device is suitable for the electric bench drill, and therefore the electric bench drill is more suitable for drilling holes with the large diameter, for tapping and the like.
Description
Technical field
The present invention relates to a kind of gear shift device technical field, relate in particular to a kind of for adjusting the speed change gear of electric drill rotating speed.
Background technology
The rotation of drill bit is all driven by motor, in common electric drilling device, the power output of motor is constant, the parameter such as rotating speed, torsion is also constant, but in actual use often according to the difference of material, need different rotating speed and torsion, this just need to arrange speed changing function on electric drill.
The electric bench drill using at present is generally provided with gear graduation and two kinds of modes of strap speed varying, wherein the electric bench drill of gear graduation is subject to the restriction of space and cost, often the buffer units such as clutch can be set, while therefore punching on hard material, once drill bit is obstructed, just may cause drill bit to twist off; And the electric bench drill of employing strap speed varying, because belt has certain cushioning effect, the situation that twists off drill bit significantly reduces, but this kind of drive is pretty troublesome when speed change, also need manually to adjust belt, so the speed governing of electric drill is very inconvenient.
As can be seen here, according to the different in kind of boring material, the speed of electric drill should be many gears electrodeless variable-speed just can meet the requirement of boring, but the electric drill using at present all can not meet above-mentioned requirements, therefore use flexibility not high, the rotating speed to electric drill that can not quick and smooth is adjusted.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of real-time electrodeless variable-speed, adjusts flexible, simple electric drill speed change gear.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of electric drill stepless speed-regulating device, comprise drive motors, described drive motors is connected with and drives cone roller, described driving cone roller rotates and is installed between the upper mounted plate and bottom plate be arrangeding in parallel, between fixed plate and described bottom plate, be also rotatablely equipped with described driving cone roller be used in conjunction with from mantle roller, described driving cone roller and describedly oppositely install with tapering from mantle roller, described driving cone roller and be describedly set with speed-governing belt between mantle roller, described speed-governing belt is connected with speed governing guider, described speed governing guider is connected with speed-adjustable driving device, describedly from mantle roller, be connected with gearbox, the clutch end of described gearbox is provided with drill bit.
As preferred technical scheme, described speed governing guider comprises the driving axis of guide be arrangeding in parallel with described driving cone roller lateral wall, with the described driven axis of guide be arrangeding in parallel from mantle roller lateral wall, the described driving axis of guide and the described driven axis of guide be arranged in parallel, on the described driving axis of guide, be set with successively and drive upper positioning sleeve and drive lower positioning sleeve, in described driving, under positioning sleeve and described driving, on the described driving axis of guide between positioning sleeve, be rotatablely equipped with speed governing and drive directive wheel, described speed governing drives under directive wheel and described driving and is provided with directive wheel back-moving spring between positioning sleeve, the lower end of the described driving axis of guide is connected with described speed-adjustable driving device, on the described driven axis of guide, be set with successively driven upper positioning sleeve and driven lower positioning sleeve, on the described driven axis of guide between described driven upper positioning sleeve and described driven lower positioning sleeve, be rotatablely equipped with the driven directive wheel of speed governing, described speed-governing belt is arranged in described speed governing and drives between directive wheel and the driven directive wheel of described speed governing, the upper end of the described driving axis of guide and the described driven axis of guide is connected with the synchronizing bar of horizontally set, between described synchronizing bar and the described driving axis of guide, be connected with driving reinforced engagement means, between described synchronizing bar and the described driven axis of guide, be connected with driven reinforced engagement means.
As preferred technical scheme, described driving reinforced engagement means comprises the driving adapter sleeve being fixedly set on described synchronizing bar, be fixedly set in the driving guideway on the described driving axis of guide, between described driving adapter sleeve and described driving guideway, be connected with to drive and strengthen connecting rod.
As preferred technical scheme, described driven reinforced engagement means comprises the driven adapter sleeve being fixedly set on described synchronizing bar, be fixedly set in the driven guideway on the described driven axis of guide, between described driven adapter sleeve and described driven guideway, be connected with driven reinforcement connecting rod.
As preferred technical scheme, described speed governing drives directive wheel to comprise wheel body, side face around described wheel body is provided with the belt draw-in groove coordinating with described speed-governing belt, in described wheel body both ends of the surface, be coaxially provided with respectively bearing groove, described in two, in bearing groove, be separately installed with rolling bearing, described in two, rolling bearing outer end is separately installed with the jump ring coordinating with the described driving axis of guide; The structure of the driven directive wheel of described speed governing drives the structure of directive wheel identical with described speed governing.
As preferred technical scheme, described speed-adjustable driving device comprises the steel wire being connected with the described driving axis of guide, the described steel wire other end is connected with speed governing pedal, is provided with and changes the changed course pulley that described steel wire pulls direction between described speed governing pedal and the described driving axis of guide.
As preferred technical scheme, described driving cone roller upper end is installed with and drives roll shaft on cone roller, on the corresponding described driving cone of fixed plate roller, roll shaft is provided with the driving cone roller upper bearing (metal) being used in conjunction with, described driving cone roller lower end is installed with and drives cone roller lower roller shaft, the corresponding described driving cone of described bottom plate roller lower roller shaft is provided with the driving cone roller lower bearing being used in conjunction with, and described driving cone roller lower roller shaft is connected described drive motors through described driving cone roller lower bearing with described bottom plate.
As preferred technical scheme, describedly from mantle roller upper end, be installed with roll shaft from mantle roller, described in fixed plate correspondence from mantle roller roll shaft be provided be used in conjunction with from mantle roller upper bearing (metal), describedly from mantle roller lower end, be installed with from mantle roller lower roller shaft, described in described bottom plate correspondence from mantle roller lower roller shaft be provided be used in conjunction with from mantle roller lower bearing, describedly from mantle roller lower roller shaft, from mantle roller lower bearing, be connected described gearbox with described bottom plate through described.
As preferred technical scheme, the tapering of described driving cone roller is not more than 15 °, and the small end face diameter of described driving cone roller is not less than 6cm; The described tapering from mantle roller is not more than 15 °, and the described small end face diameter from mantle roller is not less than 6cm.
As the improvement to technique scheme, described speed-governing belt is polyurethane flat rubber belting, and the cross section of described polyurethane flat rubber belting is rectangle, and the thickness of described polyurethane flat rubber belting is 1～3cm, and the width of described polyurethane flat rubber belting is 1.5～3cm.
Owing to having adopted technique scheme, a kind of electric drill stepless speed-regulating device, comprise drive motors, described drive motors is connected with and drives cone roller, described driving cone roller rotates and is installed between the upper mounted plate and bottom plate be arrangeding in parallel, between fixed plate and described bottom plate, be also rotatablely equipped with described driving cone roller be used in conjunction with from mantle roller, described driving cone roller and describedly oppositely install with tapering from mantle roller, described driving cone roller and be describedly set with speed-governing belt between mantle roller, described speed-governing belt is connected with speed governing guider, described speed governing guider is connected with speed-adjustable driving device, describedly from mantle roller, be connected with gearbox, the clutch end of described gearbox is provided with drill bit, the invention has the beneficial effects as follows: than traditional electric bench drill of fixed rotating speed in prior art, this device can be realized the electrodeless rotating speed that changes smoothly in the situation that drive motors power is constant, and the mechanism of speed governing is speed-adjustable driving device, workman can be according to the needs of oneself in use, immediately change the rotating speed of drill bit, relatively be suitable for electric bench drill and use, make electric bench drill be more suitable for being drilled with the uses such as hole that diameter is larger, tapping.
Accompanying drawing explanation
The following drawings is only intended to the present invention to schematically illustrate and explain, not delimit the scope of the invention.Wherein:
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structure enlarged diagram at A place in Fig. 1;
In figure: 1-drive motors; 2-drives cone roller; 3-upper mounted plate; 4-bottom plate; 5-drives roll shaft on cone roller; 6-drives cone roller upper bearing (metal); 7-drives cone roller lower roller shaft; 8-is from mantle roller; 9-is roll shaft from mantle roller; 10-is from mantle roller lower roller shaft; 11-speed-governing belt; 12-gearbox; 13-drill bit; 14-drives the axis of guide; The driven axis of guide of 15-; Positioning sleeve in 16-driving; 17-drives lower positioning sleeve; The driven upper positioning sleeve of 18-; The driven lower positioning sleeve of 19-; 20-speed governing drives directive wheel; 201-wheel body; 202-belt draw-in groove; 203-rolling bearing; 204-jump ring; 21-directive wheel back-moving spring; The driven directive wheel of 22-speed governing; 23-synchronizing bar; 24-drives adapter sleeve; 25-drives guideway; 26-drives and strengthens connecting rod; The driven adapter sleeve of 27-; The driven guideway of 28-; The driven reinforcement connecting rod of 29-; 30-steel wire; 31-speed governing pedal; The 32-pulley that alters course.
The specific embodiment
Below in conjunction with drawings and Examples, further set forth the present invention.In the following detailed description, only by the mode of explanation, some one exemplary embodiment of the present invention has been described.Undoubtedly, those of ordinary skill in the art can recognize, without departing from the spirit and scope of the present invention in the situation that, can to described embodiment, revise by various mode.Therefore, accompanying drawing is illustrative with being described in essence, rather than for limiting the protection domain of claim.
As depicted in figs. 1 and 2, a kind of electric drill stepless speed-regulating device, comprise drive motors 1, described drive motors 1 is connected with and drives cone roller 2, described driving cone roller 2 rotates and is installed between the upper mounted plate 3 and bottom plate 4 be arrangeding in parallel, and the surface of described driving cone roller 2 is done exasperate and processed, and the tapering that records described driving cone roller 2 through test is not more than 15 °, the small end face diameter of described driving cone roller 2 is not less than 6cm, makes speed-regulating function best.Described driving cone roller 2 upper ends are installed with and drive roll shaft 5 on cone roller, on the corresponding described driving cone roller of fixed plate 3, roll shaft 5 is provided with the driving cone roller upper bearing (metal) 6 being used in conjunction with, described driving cone roller 2 lower ends are installed with and drive cone roller lower roller shaft 7, the corresponding described driving cone roller lower roller shaft 7 of described bottom plate 4 is provided with the driving cone roller lower bearing being used in conjunction with, described driving cone roller 2 is rotated and is installed between fixed plate 3 and described bottom plate 4 by described driving cone roller upper bearing (metal) 6 and described driving cone roller lower bearing, described driving cone roller lower roller shaft 7 is connected described drive motors 1 through described driving cone roller lower bearing with described bottom plate 4, by described drive motors 1, by described driving cone roller lower roller shaft 7, drive described driving cone roller 2 to rotate.Can certainly run through an axis of described driving cone roller 2 fixed installations, replace roll shaft 5 and described driving cone roller lower roller shaft 7 on described driving cone roller, can drive described driving cone roller 2 to rotate by described drive motors 1 equally.
Between the fixed plate 3 of the present embodiment and described bottom plate 4, be also rotatablely equipped with described driving cone roller 2 be used in conjunction with from mantle roller 8, described driving cone roller 2 is oppositely installed with tapering from mantle roller 8 with described, described in, from the tapering of mantle roller 8, be also not more than 15 °, the described small end face diameter from mantle roller 8 is also not less than 6cm, and the described exasperate of also doing from mantle roller 8 surfaces is processed, to facilitate to drive, use.Describedly from mantle roller 8 upper ends, be installed with roll shaft 9 from mantle roller, fixed plate 3 corresponding described from mantle roller roll shaft 9 be provided be used in conjunction with from mantle roller upper bearing (metal), describedly from mantle roller 8 lower ends, be installed with from mantle roller lower roller shaft 10, described bottom plate 4 corresponding described from mantle roller lower roller shaft 10 be provided be used in conjunction with from mantle roller lower bearing, described from mantle roller 8 by described from mantle roller upper bearing (metal) with describedly rotate and to be installed between fixed plate 3 and described bottom plate 4 from mantle roller lower bearing
Described driving cone roller 2 and be describedly set with speed-governing belt 11 between mantle roller 8, and described speed-governing belt 11 is for having the polyurethane flat rubber belting of higher elasticity, the cross section of described polyurethane flat rubber belting is rectangle, the thickness of described polyurethane flat rubber belting is 1～3cm, and the width of described polyurethane flat rubber belting is 1.5～3cm.Described speed-governing belt 11 is sleeved on described driving cone roller 2 and described from mantle roller 8, and the elasticity of described speed-governing belt 11 can be offset and changes and produce expanding force with the described whole perimeter from mantle roller 8 because of described driving cone roller 2.Described speed-governing belt 11 is connected with speed governing guider, and described speed governing guider is connected with speed-adjustable driving device; Describedly from mantle roller lower roller shaft 10, through described, from mantle roller lower bearing, be connected gearbox 12 with described bottom plate 4, the clutch end of described gearbox 12 is provided with drill bit 13, described gearbox 12 is ordinary gear gearbox, in order to the described power spreading out of from mantle roller 8 is carried out to further speed change, can realize secondary speed control to drill bit 13, make speed adjustable range wider, use convenient, ordinary gear gearbox is the known content of those of ordinary skill in the art, does not repeat them here.
The described speed governing guider of the present embodiment comprises the driving axis of guide 14 be arrangeding in parallel with described driving cone roller 2 lateral walls, with the described driven axis of guide 15 be arrangeding in parallel from mantle roller 8 lateral walls, the described driving axis of guide 14 be arranged in parallel with the described driven axis of guide 15, on the described driving axis of guide 14, be set with successively and drive upper positioning sleeve 16 and drive lower positioning sleeve 17, on the described driven axis of guide 15, be set with successively driven upper positioning sleeve 18 and driven lower positioning sleeve 19, in described driving, the upper limit of movement of positioning sleeve 16 and 18 pairs of described driving axis of guides 14 of described driven upper positioning sleeve and the described driven axis of guide 15 forms location, under described driving, the motion lower limit of positioning sleeve 17 and 19 pairs of described driving axis of guides 14 of described driven lower positioning sleeve and the described driven axis of guide 15 forms location, and then the speed adjustable range of formation speed-governing belt 11.
In described driving, under positioning sleeve 16 and described driving, on the described driving axis of guide 14 between positioning sleeve 17, be rotatablely equipped with speed governing and drive directive wheel 20, described speed governing drives under directive wheel 20 and described driving and is provided with directive wheel back-moving spring 21 between positioning sleeve 17, described directive wheel back-moving spring 21 make described speed governing driving directive wheel 20 all the time in the described driving axis of guide 14 the tops near described driving on the state of positioning sleeve 16, the lower end of the described driving axis of guide 14 is connected with described speed-adjustable driving device, wherein said speed governing drives directive wheel 20 to comprise wheel body 201, side face around described wheel body 201 is provided with the belt draw-in groove 202 coordinating with described speed-governing belt 11, in described wheel body 201 both ends of the surface, be coaxially provided with respectively bearing groove, described in two, in bearing groove, be separately installed with rolling bearing 203, described in two, rolling bearing 203 outer ends are separately installed with the jump ring 204 coordinating with the described driving axis of guide 14, described wheel body 201 is realized with the described driving axis of guide 14 and is rotated and install by two rolling bearings 203, the jump ring 204 arranging between bearing groove described in two and the described driving axis of guide 14, can be on the axis direction of the described driving axis of guide 14, described wheel body 201 and described rolling bearing 203 are fixed, prevent sideslip in running.
On the described driven axis of guide 15 between described driven upper positioning sleeve 18 and described driven lower positioning sleeve 19, be rotatablely equipped with the driven directive wheel 22 of speed governing, described speed-governing belt 11 is arranged in described speed governing and drives between directive wheel 20 and the driven directive wheel 22 of described speed governing, the structure of the driven directive wheel 22 of described speed governing drives the structure of directive wheel 20 identical with described speed governing, be that described speed-governing belt 11 is arranged between the described speed governing driving belt draw-in groove of directive wheel 20 and the belt draw-in groove of the driven directive wheel 22 of described speed governing, the speed governing location of formation to described speed-governing belt 11, prevent sideslip automatic speed regulation in its running, when described speed governing drives directive wheel 20 to be positioned at the position of positioning sleeve 16 bottoms in described driving, the driven directive wheel 22 of described speed governing is positioned at the bottom position of described driven upper positioning sleeve 18 accordingly, now the rotating speed of drill bit 13 is minimum, when described speed governing drives directive wheel 20 to be positioned at the apical position of positioning sleeve 17 under described driving, the driven directive wheel 22 of described speed governing is positioned at the apical position of described driven lower positioning sleeve 19 accordingly, and now the rotating speed of drill bit 13 is maximum.
For guaranteeing that described speed-governing belt 11 can keep translation in the horizontal direction, reduce the friction of described speed-governing belt 11 and the described driving axis of guide 14 and the driven axis of guide 15, the upper end of the described driving axis of guide 14 and the described driven axis of guide 15 is connected with the synchronizing bar 23 of horizontally set, between described synchronizing bar 23 and the described driving axis of guide 14, be connected with driving reinforced engagement means, between described synchronizing bar 23 and the described driven axis of guide 15, be connected with driven reinforced engagement means.Described driving reinforced engagement means comprises the driving adapter sleeve 24 being fixedly set on described synchronizing bar 23, be fixedly set in the driving guideway 25 on the described driving axis of guide 14, between described driving adapter sleeve 24 and described driving guideway 25, be connected with to drive and strengthen connecting rod 26; Described driven reinforced engagement means comprises the driven adapter sleeve 27 being fixedly set on described synchronizing bar 23, be fixedly set in the driven guideway 28 on the described driven axis of guide 15, between described driven adapter sleeve 27 and described driven guideway 28, be connected with driven reinforcement connecting rod 29.Connecting rod 26, described synchronizing bar 23 and the described driving axis of guide 14 are strengthened in described driving and described driven reinforcement connecting rod 29, described synchronizing bar 23 and the described driven axis of guide 15 have formed respectively triangle rock-steady structure, while making described speed-adjustable driving device pull the described driving axis of guide 14, can drive the described driven axis of guide 15 to be synchronized with the movement simultaneously, make described speed-governing belt 11 remain level, complete electrodeless stepless speed control.
Described speed-adjustable driving device comprises the steel wire 30 being connected with the described driving axis of guide 14, described steel wire 30 other ends are connected with speed governing pedal 31, be provided with and change the changed course pulley 32 that described steel wire 30 pulls direction between described speed governing pedal 31 and the described driving axis of guide 14.Described speed governing pedal 31 connects the described driving axis of guide 14 by described steel wire 30, what the described changed course pulley 32 arranging can make described steel wire 30 pulls direction consistent with the axis direction of the described driving axis of guide 14, the described driving axis of guide 14 of described steel wire 30 traction moves up and down, the described speed governing being arranged on the described driving axis of guide 14 drives also synchronizing moving of directive wheel 20, realizes drill bit 13 and seamlessly transits to high speed from low speed.Certainly steel wire also can utilize the structures such as stay cord to replace, and is not subject to the restriction of steel wire 30 described in the present embodiment.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Claims (10)
1. an electric drill stepless speed-regulating device, it is characterized in that: comprise drive motors, described drive motors is connected with and drives cone roller, described driving cone roller rotates and is installed between the upper mounted plate and bottom plate be arrangeding in parallel, between fixed plate and described bottom plate, be also rotatablely equipped with described driving cone roller be used in conjunction with from mantle roller, described driving cone roller and describedly oppositely install with tapering from mantle roller, described driving cone roller and be describedly set with speed-governing belt between mantle roller, described speed-governing belt is connected with speed governing guider, described speed governing guider is connected with speed-adjustable driving device, describedly from mantle roller, be connected with gearbox, the clutch end of described gearbox is provided with drill bit.
2. a kind of electric drill stepless speed-regulating device as claimed in claim 1, it is characterized in that: described speed governing guider comprises the driving axis of guide be arrangeding in parallel with described driving cone roller lateral wall, with the described driven axis of guide be arrangeding in parallel from mantle roller lateral wall, the described driving axis of guide and the described driven axis of guide be arranged in parallel, on the described driving axis of guide, be set with successively and drive upper positioning sleeve and drive lower positioning sleeve, in described driving, under positioning sleeve and described driving, on the described driving axis of guide between positioning sleeve, be rotatablely equipped with speed governing and drive directive wheel, described speed governing drives under directive wheel and described driving and is provided with directive wheel back-moving spring between positioning sleeve, the lower end of the described driving axis of guide is connected with described speed-adjustable driving device, on the described driven axis of guide, be set with successively driven upper positioning sleeve and driven lower positioning sleeve, on the described driven axis of guide between described driven upper positioning sleeve and described driven lower positioning sleeve, be rotatablely equipped with the driven directive wheel of speed governing, described speed-governing belt is arranged in described speed governing and drives between directive wheel and the driven directive wheel of described speed governing, the upper end of the described driving axis of guide and the described driven axis of guide is connected with the synchronizing bar of horizontally set, between described synchronizing bar and the described driving axis of guide, be connected with driving reinforced engagement means, between described synchronizing bar and the described driven axis of guide, be connected with driven reinforced engagement means.
3. a kind of electric drill stepless speed-regulating device as claimed in claim 2, it is characterized in that: described driving reinforced engagement means comprises the driving adapter sleeve being fixedly set on described synchronizing bar, be fixedly set in the driving guideway on the described driving axis of guide, between described driving adapter sleeve and described driving guideway, be connected with to drive and strengthen connecting rod.
4. a kind of electric drill stepless speed-regulating device as claimed in claim 2, it is characterized in that: described driven reinforced engagement means comprises the driven adapter sleeve being fixedly set on described synchronizing bar, be fixedly set in the driven guideway on the described driven axis of guide, between described driven adapter sleeve and described driven guideway, be connected with driven reinforcement connecting rod.
5. a kind of electric drill stepless speed-regulating device as claimed in claim 2, it is characterized in that: described speed governing drives directive wheel to comprise wheel body, side face around described wheel body is provided with the belt draw-in groove coordinating with described speed-governing belt, in described wheel body both ends of the surface, be coaxially provided with respectively bearing groove, described in two, in bearing groove, be separately installed with rolling bearing, described in two, rolling bearing outer end is separately installed with the jump ring coordinating with the described driving axis of guide; The structure of the driven directive wheel of described speed governing drives the structure of directive wheel identical with described speed governing.
6. a kind of electric drill stepless speed-regulating device as described in claim 2,3,4 or 5, it is characterized in that: described speed-adjustable driving device comprises the steel wire being connected with the described driving axis of guide, the described steel wire other end is connected with speed governing pedal, is provided with and changes the changed course pulley that described steel wire pulls direction between described speed governing pedal and the described driving axis of guide.
7. a kind of electric drill stepless speed-regulating device as claimed in claim 6, it is characterized in that: described driving cone roller upper end is installed with and drives roll shaft on cone roller, on the corresponding described driving cone of fixed plate roller, roll shaft is provided with the driving cone roller upper bearing (metal) being used in conjunction with, described driving cone roller lower end is installed with and drives cone roller lower roller shaft, the corresponding described driving cone of described bottom plate roller lower roller shaft is provided with the driving cone roller lower bearing being used in conjunction with, and described driving cone roller lower roller shaft is connected described drive motors through described driving cone roller lower bearing with described bottom plate.
8. a kind of electric drill stepless speed-regulating device as claimed in claim 7, it is characterized in that: describedly from mantle roller upper end, be installed with roll shaft from mantle roller, described in fixed plate correspondence from mantle roller roll shaft be provided be used in conjunction with from mantle roller upper bearing (metal), describedly from mantle roller lower end, be installed with from mantle roller lower roller shaft, described in described bottom plate correspondence from mantle roller lower roller shaft be provided be used in conjunction with from mantle roller lower bearing, describedly from mantle roller lower roller shaft, from mantle roller lower bearing, be connected described gearbox with described bottom plate through described.
9. a kind of electric drill stepless speed-regulating device as claimed in claim 1, is characterized in that: the tapering of described driving cone roller is not more than 15 °, and the small end face diameter of described driving cone roller is not less than 6cm; The described tapering from mantle roller is not more than 15 °, and the described small end face diameter from mantle roller is not less than 6cm.
10. a kind of electric drill stepless speed-regulating device as claimed in claim 1, it is characterized in that: described speed-governing belt is polyurethane flat rubber belting, the cross section of described polyurethane flat rubber belting is rectangle, and the thickness of described polyurethane flat rubber belting is 1～3cm, and the width of described polyurethane flat rubber belting is 1.5～3cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263558.9A CN103990832B (en) | 2014-06-13 | 2014-06-13 | A kind of electric drill stepless speed-regulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410263558.9A CN103990832B (en) | 2014-06-13 | 2014-06-13 | A kind of electric drill stepless speed-regulating device |
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| Publication Number | Publication Date |
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| CN103990832A true CN103990832A (en) | 2014-08-20 |
| CN103990832B CN103990832B (en) | 2016-03-30 |
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| CN105736677A (en) * | 2016-05-11 | 2016-07-06 | 沈阳航天新光集团有限公司 | Stepless speed regulating device |
| CN114303540A (en) * | 2021-12-27 | 2022-04-12 | 徐州佳禾农业科技有限公司 | Interval adjustable seeder for farming |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736677A (en) * | 2016-05-11 | 2016-07-06 | 沈阳航天新光集团有限公司 | Stepless speed regulating device |
| CN114303540A (en) * | 2021-12-27 | 2022-04-12 | 徐州佳禾农业科技有限公司 | Interval adjustable seeder for farming |
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| Publication number | Publication date |
|---|---|
| CN103990832B (en) | 2016-03-30 |
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