CN2842090Y - Speed governing mechanism for stepless speed-changing bench drill - Google Patents
Speed governing mechanism for stepless speed-changing bench drill Download PDFInfo
- Publication number
- CN2842090Y CN2842090Y CN 200520087772 CN200520087772U CN2842090Y CN 2842090 Y CN2842090 Y CN 2842090Y CN 200520087772 CN200520087772 CN 200520087772 CN 200520087772 U CN200520087772 U CN 200520087772U CN 2842090 Y CN2842090 Y CN 2842090Y
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- China
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- belt wheel
- taper
- sleeved
- fixed
- thin neck
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- Expired - Fee Related
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Abstract
A kind of speed regulating mechanism of stepless speed change bench drill.It comprises the two stage conical belt wheel stepless speed changes devices that has jack shaft, have thin neck and externally threaded tooth axle and be installed in headstock with the screw of Bearing Installation tooth cover, rigid bearing inner ring lower edge and jack shaft lower end of tooth bar and outside having, with the outer tooth bar engagement of tooth cover and outer end in the jack shaft lower end and the tooth axle on the rotation speed regulator.The rotation speed regulator comprises on the thin neck that is sleeved on gear shaft and is fixed on packing ring on the headstock, is sleeved on rotating block on the thin neck of tooth axle with key, is sleeved on dish spring on the thin neck, is positioned at rotating block and dish spring outside and is fastened on the nut on the thin neck outside thread and is fixed on handle on the rotating block.It is constant that it does not need locking handle arbitrarily, stably to control a certain speed ratio, and structure is simpler, and cost of production is also lower.Can be widely used in the various drilling machines.
Description
Technical field
The utility model belongs to the bench drill technical field, more particularly relates to the improvement of the speed regulating mechanism of stepless speed change bench drill.
Background technique
Traditional drilling machine mostly is step change.Its kind of drive is: motor drives driving cone pulley, belt, driven cone pulley, main shaft and drill chuck rotation successively.When needing speed change, be under vehicle stop state, drivign belt is moved on to another from one group of driving and driven belt pulley of cone pulley organize on the driving and driven belt pulley.Its gear ratio is limited several.Variable speed operation is also very loaded down with trivial details, time-consuming.
The applicant's 01268709.X, 02268449.2 and No. 200320106447.4 Chinese patent disclose the stepless speed changing mechanism of several bench drills.Their structures are simpler, realized stepless change.200520085007.4 number patent application has proposed a kind of stepless speed change bench drill that does not need locking handle can arbitrarily, stably control speed ratio again.But the latter's structure is complicated, thereby cost of production is also higher.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of speed regulating mechanism of stepless speed change bench drill is provided.It is constant that it does not only need locking handle arbitrarily, stably to control a certain speed ratio, controls convenient, flexiblely, and speed regulating structure is simpler, thereby cost of production is also lower.
In order to achieve the above object, the utility model comprise the two stage conical belt wheel stepless speed changes devices that has jack shaft, have thin neck and externally threaded tooth axle and be installed in headstock with the screw of Bearing Installation tooth cover, rigid bearing inner ring lower edge and jack shaft lower end of tooth bar and outside having, with the outer tooth bar engagement of tooth cover and outer end in the jack shaft lower end and the tooth axle on the rotation speed regulator.
The rotation speed regulator comprises on the thin neck that is sleeved on the tooth axle and is fastened on packing ring on the headstock, is sleeved on rotating block on the thin neck of tooth axle with key, is sleeved on dish spring on the thin neck, is positioned at rotating block and dish spring outside and is fastened on the nut on the thin neck outside thread and is fixed on handle on the rotating block.
The nut of rotation speed regulator is pressed on the dish spring, and further rotating block is pressed on the packing ring, makes the position of rotating block only depend on the position of pulling of handle.Pull the handle of rotation speed regulator, rotating block is just by corresponding rotation, and and then drive tooth axle rotation.The rotation of tooth axle drives the outer tooth bar with its engagement, and the tooth cover is moved up and down together with jack shaft.Therefore, do not need locking handle can be arbitrarily, stably be located, that is it is constant to be controlled at a certain speed ratio.
The two stage conical belt wheel stepless speed changes devices that has jack shaft comprises the active taper upper half belt wheel that is fixed on the motor shaft upper end, being installed in long key also can be along second belt wheel of active taper of long key slip on the motor shaft, be sleeved on the pressure spring between motor shaft shoulder and second belt wheel of active taper on the motor shaft, be fixed on second belt wheel of driven taper on main shaft top, being installed in the main shaft upper end with long key also can be along first belt wheel of driven taper of long key slip, be fixed on the axle bumper of main shaft upper end, be sleeved on the stage clip between axle bumper and first belt wheel of driven taper on the main shaft, be fixed on the middle outer shaft sleeve on the headstock, to overlap in the axis of Bearing Installation in middle outer shaft sleeve, be fixed on first belt wheel of transition taper of set upper side in the axis, be sleeved on the two sides conical pulley that puts in the axis, be fixed on second belt wheel of transition taper of cover lower end in the axis, be sleeved on the jack shaft in the cover in the axis, be installed in the initiatively taper active belt between half belt wheel and two sides conical pulley and second belt wheel of transition taper up and down, be installed in the driven belt between second belt wheel in two sides conical pulley and first belt wheel of transition taper and the driven taper.Put about having two relative slotted holes in the axis, be fixed with on the jack shaft up and down two between the conical pulley of two sides and pass about locating stud in two slotted holes.
When jack shaft moves up, drive on the conical pulley of two sides by locating stud and to move, make in the spacing between two sides conical pulley and second belt wheel of transition taper increase, the spacing between two sides conical pulley and first belt wheel of transition taper reduces.Accordingly, initiatively the spacing between upper and lower half belt wheel of taper reduces, and the spacing between second belt wheel increases in the driven taper.So the speed ratio of two stage conical belt wheel stepless speed changes devices will increase, that is the rotating speed of bench drill increases stepless continuous.When jack shaft moved down, situation was opposite, and the speed ratio of two stage conical belt wheel stepless speed changes devices will reduce, that is the rotating speed of bench drill reduces stepless continuous.When handle was positioned at certain invariant position, a certain specific speed ratio was also stablized constant.
Task of the present utility model comes to this and finishes.
It is constant that the utility model does not need locking handle arbitrarily, stably to control a certain speed ratio, controls convenient, flexiblely, and speed regulating structure is simple, thereby cost of production is also lower.It can be widely used in the various drilling machines.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment
Embodiment 1.A kind of speed regulating mechanism of stepless speed change bench drill is as Fig. 1～shown in Figure 3.It is installed on main shaft 4, motor 3 and the headstock 2 of bench drill, comprise the two stage conical belt wheel stepless speed changes devices that has jack shaft 5, with bearing 6 be installed in jack shaft 5 lower ends and have the screw 9 of tooth cover 8, rigid bearing 6 inner ring lower edges and jack shaft 5 lower ends of outer tooth bar 7, have thin neck 10 and externally threaded tooth axle 11 and be installed in headstock 2 with outer tooth bar 7 engagements of tooth cover 8 and outer end and tooth axle 11 on the rotation speed regulator.1 is the column of bench drill.
The rotation speed regulator comprises on the thin neck 10 that is sleeved on tooth axle 11 and is fixed on packing ring 12 on the headstock 2, is sleeved on rotating block 14 on the thin neck 10 of tooth axle 11 with key 13, is sleeved on dish spring 15 on the thin neck 10, is positioned at the nut 16 on the outside thread that rotating block 14 and dish spring 15 outsides are fastened on thin neck 10 and is fixed on handle 17 on the rotating block 14.
The two stage conical belt wheel stepless speed changes devices that has jack shaft 5 comprises the active taper upper half belt wheel 18 that is fixed on motor shaft 4 upper ends, being installed in long key 21 also can be along second belt wheel 19 of active taper of long key slip on the motor shaft 4, be sleeved on the pressure spring 20 between motor shaft shoulder and second belt wheel 19 of active taper on the motor shaft 4, be fixed on second belt wheel 24 of driven taper on main shaft 23 tops, being installed in main shaft 23 upper ends with long key 28 also can be along first belt wheel 25 of driven taper of long key 28 slips, be fixed on the axle bumper 27 of main shaft 23 upper ends, be sleeved on the stage clip 26 between axle bumper 27 and first belt wheel 25 of driven taper on the main shaft 23, be fixed on the middle outer shaft sleeve 29 on the headstock 2, overlap 31 in the axis in being installed in bearing 30 in the outer shaft sleeve 29, be fixed on first belt wheel 32 of transition taper of cover 31 upper ends in the axis, be sleeved on the two sides conical pulley 33 on the cover 31 in the axis, be fixed on second belt wheel 34 of transition taper of cover 31 lower ends in the axis, be sleeved on the jack shaft 5 in the cover 31 in the axis, be installed in initiatively taper up and down half belt wheel 18 and 19 and two sides conical pulley 33 and second belt wheel 34 of transition taper between active belt 22, be installed in the driven belt 35 between second belt wheel 25 and 24 in first belt wheel 32 of two sides conical pulley 33 and transition taper and the driven taper.Two relative slotted holes 36 about having on the cover 31 in the axis, be fixed with on the jack shaft 5 up and down two between the two sides conical pulley 33 and pass about locating stud 37 in two slotted holes 36.
It is constant that embodiment 1 does not need locking handle arbitrarily, stably to control a certain speed ratio, controls convenient, flexiblely, and speed regulating structure is simple, thereby cost of production is also lower.It can be widely used in the various drilling machines.
Claims (3)
1. the speed regulating mechanism of a stepless speed change bench drill, be installed on main shaft, motor and the headstock of bench drill, it is characterized in that it comprise the two stage conical belt wheel stepless speed changes devices that has jack shaft, have thin neck and externally threaded tooth axle and be installed in headstock with the screw of Bearing Installation tooth cover, rigid bearing inner ring lower edge and jack shaft lower end of tooth bar and outside having, with the outer tooth bar engagement of tooth cover and outer end in the jack shaft lower end and the tooth axle on the rotation speed regulator.
2. according to the speed regulating mechanism of the described stepless speed change bench drill of claim 1, it is characterized in that said rotation speed regulator comprises on the thin neck that is sleeved on gear shaft and is fixed on packing ring on the headstock, is sleeved on rotating block on the thin neck of tooth axle with key, is sleeved on dish spring on the thin neck, is positioned at rotating block and dish spring outside and is fastened on the nut on the thin neck outside thread and is fixed on handle on the rotating block.
3. according to the speed regulating mechanism of claim 1 or 2 described stepless speed change bench drills, it is characterized in that the said two stage conical belt wheel stepless speed changes devices that has jack shaft comprises the active taper upper half belt wheel that is fixed on the motor shaft upper end, being installed in long key also can be along second belt wheel of active taper of long key slip on the motor shaft, be sleeved on the pressure spring between motor shaft shoulder and second belt wheel of active taper on the motor shaft, be fixed on second belt wheel of driven taper on main shaft top, being installed in the main shaft upper end with long key also can be along first belt wheel of driven taper of long key slip, be fixed on the axle bumper of main shaft upper end, be sleeved on the stage clip between axle bumper and first belt wheel of driven taper on the main shaft, be fixed on the middle outer shaft sleeve on the headstock, to overlap in the axis of Bearing Installation in middle outer shaft sleeve, be fixed on first belt wheel of transition taper of set upper side in the axis, be sleeved on the two sides conical pulley that puts in the axis, be fixed on second belt wheel of transition taper of cover lower end in the axis, be sleeved on the jack shaft in the cover in the axis, be installed in the initiatively taper active belt between half belt wheel and two sides conical pulley and second belt wheel of transition taper up and down, be installed in the driven belt between second belt wheel in two sides conical pulley and first belt wheel of transition taper and the driven taper, put about having two relative slotted holes in the axis, be fixed with on the jack shaft up and down two between the conical pulley of two sides and pass about locating stud in two slotted holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087772 CN2842090Y (en) | 2005-09-30 | 2005-09-30 | Speed governing mechanism for stepless speed-changing bench drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087772 CN2842090Y (en) | 2005-09-30 | 2005-09-30 | Speed governing mechanism for stepless speed-changing bench drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842090Y true CN2842090Y (en) | 2006-11-29 |
Family
ID=37445972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087772 Expired - Fee Related CN2842090Y (en) | 2005-09-30 | 2005-09-30 | Speed governing mechanism for stepless speed-changing bench drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842090Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352765B (en) * | 2007-07-27 | 2010-08-04 | 力山工业股份有限公司 | Speed-variation device and drill machine with speed-variation device |
| CN102230525A (en) * | 2011-04-21 | 2011-11-02 | 重庆理工大学 | Driving belt stepless transmission with increased transmission torque and gear ratio |
| CN102252076A (en) * | 2011-07-13 | 2011-11-23 | 重庆理工大学 | Double-metal-band multi-section continuously variable transmission |
| CN103801733A (en) * | 2012-11-14 | 2014-05-21 | 力山工业股份有限公司 | Rotating speed regulating mechanism used for drilling machine |
| CN103968021A (en) * | 2014-04-18 | 2014-08-06 | 绍兴古原机械有限公司 | Roller brush speed control system for pavement sweeping machine |
| CN104015518A (en) * | 2014-05-29 | 2014-09-03 | 深圳市精密达机械有限公司 | Book out-going stepless speed change adjusting mechanism of combined saddle stitching line and book out-going channel thereof |
| CN115351605A (en) * | 2022-09-17 | 2022-11-18 | 宋代菊 | Multipurpose machine tool capable of adjusting rotating speed |
-
2005
- 2005-09-30 CN CN 200520087772 patent/CN2842090Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101352765B (en) * | 2007-07-27 | 2010-08-04 | 力山工业股份有限公司 | Speed-variation device and drill machine with speed-variation device |
| CN102230525A (en) * | 2011-04-21 | 2011-11-02 | 重庆理工大学 | Driving belt stepless transmission with increased transmission torque and gear ratio |
| CN102252076A (en) * | 2011-07-13 | 2011-11-23 | 重庆理工大学 | Double-metal-band multi-section continuously variable transmission |
| CN102252076B (en) * | 2011-07-13 | 2015-11-18 | 重庆理工大学 | Bimetallic strip multi-stage stepless speed changer |
| CN103801733A (en) * | 2012-11-14 | 2014-05-21 | 力山工业股份有限公司 | Rotating speed regulating mechanism used for drilling machine |
| CN103968021A (en) * | 2014-04-18 | 2014-08-06 | 绍兴古原机械有限公司 | Roller brush speed control system for pavement sweeping machine |
| CN103968021B (en) * | 2014-04-18 | 2016-09-07 | 绍兴海博机械有限公司 | Pavement sweeping machine roller brush speed change system |
| CN104015518A (en) * | 2014-05-29 | 2014-09-03 | 深圳市精密达机械有限公司 | Book out-going stepless speed change adjusting mechanism of combined saddle stitching line and book out-going channel thereof |
| CN104015518B (en) * | 2014-05-29 | 2015-09-30 | 深圳市精密达机械有限公司 | A kind of publish books infinitely variable speeds guiding mechanism and passage of publishing books thereof of centre-stitched train line |
| CN115351605A (en) * | 2022-09-17 | 2022-11-18 | 宋代菊 | Multipurpose machine tool capable of adjusting rotating speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |