CN204533411U - The driving structure of belt pulley - Google Patents
The driving structure of belt pulley Download PDFInfo
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- CN204533411U CN204533411U CN201520252911.3U CN201520252911U CN204533411U CN 204533411 U CN204533411 U CN 204533411U CN 201520252911 U CN201520252911 U CN 201520252911U CN 204533411 U CN204533411 U CN 204533411U
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- wheel
- driving structure
- fast pulley
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Abstract
The utility model relates to a kind of driving structure of belt pulley, comprise the first axle, the first belt wheel be fixedly set on described first axle, the second axle, be fixedly set in the second belt wheel on described second axle and simultaneously around the belt be enclosed within described first belt wheel and the second belt wheel, described first belt wheel and the second belt wheel include and are fixedly set in the fast pulley on described first axle and described second axle, the regulating wheel be sleeved on described fast pulley respectively, and the spacing of described regulating wheel and fast pulley can be regulated by described regulating wheel; Described belt can drive the first axle and the second axle to rotate around being enclosed within described first and second belt wheels simultaneously simultaneously.The utility model adopts the belt wheel of two adjustable intervals to achieve the adjustment of reducing, without follower, low, the effective guarantee twin shaft of cost parallelism, easy to adjust, can standardized designs, can reuse.
Description
Technical field
the utility model relates to a kind of driving structure, particularly relates to a kind of driving structure of belt pulley.
Background technique
the blower fan of unit machine or air processing machine adopts belt transmission usually, and wherein electrical machine belt pulley is arranged on motor shaft, and blower fan belt wheel is arranged on motor shaft, and belt is used for the transmission of moment.
be below two kinds of main belt transmissioning modes:
1, electrical machine belt pulley and blower fan belt wheel adopt spacing (determining pitch diameter) form, and in this case, if do not have variable speed device, the speed of blower fan and motor is constant; If there has been variable speed device, can by this device adjustment rotation speed of fan.
2, electrical machine belt pulley adopts variable spacing (footpath of switching political loyalty) form, and blower fan belt wheel adopts spacing (determining radius) form.In this case, the driving diameter of electrical machine belt pulley can obtain by regulating the spacing of wheel disc, thus obtains different fan speeds, can not adopt variable speed device.
belt in use needs tensioning, has following two kinds of tensioning modes at present:
structure as shown in Figure 1: be the most frequently used form in unit machine and air processing machine:
spacing wheel disc 41 is arranged on fan shaft 40, and displacement wheel disc 31 is arranged on motor shaft 30, and V-shape belt 5 transmits motor 3 torque fan axle 40; Blower fan 4 is arranged on a platform, irremovable, motor 3 is arranged on an electric disc, electric disc is (for the tensioning) that can move forward and backward, electric disc comprises a fixed tray 32, displacement disc 33 and a belt stretcher, fixed tray 32 is arranged on foot, be fixed on platform, displacement disc 33 is on fixed tray 32 top, can with fixed tray 32 relative movement, belt stretcher can be a screw mandrel or other mode, and push away away from fan shaft 40 by motor 3 axle, motor 3 is arranged on displacement disc 33.Owing to moving, ensure that belt can tensioning and lax.
the shortcoming of this structure is: electric disc comprises two dishes and other parts, cases of otherwise standard design, price is high, particularly two dishes are all heavy loads, the mobility of dish causes motor shaft and fan shaft to be difficult to realize parallel, displacement disc easily vibrates, and maintenance is inconvenient, needs by loosening, changing belt.Such as, in order to change belt, needing removable dish of loosening, then motor shaft being shifted to fan shaft, taking off belt, new belt is installed, then tensioning, finally fix displacement disc, this step is very time-consuming, artificial.
structure as shown in Figure 2:
fan shaft 70 is installed spacing wheel disc 71, motor shaft 60 is installed reducing wheel disc 61 or spacing wheel disc 61 ', adopt V-shape belt 5 transmission; Blower fan 7 is installed on platform, irremovable, and motor 6 is arranged on platform, irremovable.In addition have employed follower 90, be arranged on the tensioning arm of force 91, the tensioning arm of force 91 is arranged on platform, and the tensioning arm of force 91 li has spring and is used for ensureing tension force, and belt 5 is arranged on 3 wheel discs, and follower 90 can in belt 5 or outside belt 5.
this structure can simply automatically tensioning, and be convenient to maintenance or non-maintaining, biaxial parallel degree easily ensures, vibrates low.But owing to adding follower and the tensioning arm of force, belt increases, high cost, increase a road friction force many, reduced belt life; If follower is arranged in belt, can surface of contact be reduced, affect transmission capacity, if follower is arranged on outside belt, can surface of contact be increased, improve transmitting force, can axial stress be increased, cause integrity problem.
Summary of the invention
the purpose of this utility model is to provide a kind of driving structure of the V-shaped belt pulley with two variable pitch diameter.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of driving structure of belt pulley, comprise the first axle, the first belt wheel be fixedly set on described first axle, the second axle, be fixedly set in the second belt wheel on described second axle and simultaneously around the belt be enclosed within described first belt wheel and the second belt wheel, described first belt wheel and the second belt wheel include and are fixedly set in the fast pulley on described first axle and described second axle, the regulating wheel be sleeved on described fast pulley respectively, and the spacing of described regulating wheel and fast pulley can be regulated by described regulating wheel; Described belt can drive the first axle and the second axle to rotate around being enclosed within described first and second belt wheels simultaneously simultaneously.
preferably, the edge of described fast pulley, regulating wheel forms V-type groove, and described belt winding is in described V-type groove.
preferably, described belt is the belt of the V-shaped or inverted trapezoidal of cross section.
preferably, described fast pulley has axle sleeve section, described regulating wheel is sleeved in described axle sleeve section, the outer circumferential face of described axle sleeve section is provided with outside thread, the wear surface that described regulating wheel is sleeved on described axle sleeve section is provided with internal thread, and described regulating wheel to be matched adjustment by described internal thread, outside thread.
preferably, described fast pulley connects the first fastening screw trip bolt, when described first fastening screw trip bolt props up on described first axle, the second axle, described fast pulley and described first axle, the second axle fix.
preferably, described regulating wheel is connected with the second fastening screw trip bolt, the axle sleeve section outer circumferential face of described fast pulley has tool cutting edge plane, when described second fastening screw trip bolt props up the tool cutting edge plane of described axle sleeve section, described regulating wheel and described fast pulley fix.
further preferably, described second fastening screw trip bolt is connected with two, and described two the second fastening screw trip bolts are separated by 90 degree of settings.
further preferably, the tool cutting edge plane of described axle sleeve section is provided with two, and described two tool cutting edge planes are separated by 180 degree of settings.
preferably, described first axle is the motor shaft be connected with motor, and described second axle is the fan shaft be connected with blower fan.
further preferably, described motor shaft is connected on motor, and described fan shaft is connected on blower fan, and described motor, blower fan are all fixedly installed.
because technique scheme is used, the utility model compared with prior art has following advantages:
the utility model adopts the belt wheel of two adjustable intervals to achieve the adjustment of reducing, without follower, low, the effective guarantee twin shaft of cost parallelism, easy to adjust, can standardized designs, can reuse.
Accompanying drawing explanation
accompanying drawing 1 is the schematic diagram of structure one in prior art;
accompanying drawing 2 is the schematic diagram of structure two in prior art;
accompanying drawing 3 is the structural representation of the present embodiment;
accompanying drawing 4 is the schematic diagram of the first belt wheel/the second belt wheel in the present embodiment.
wherein: 1, motor; 10, the first axle; 11, the first belt wheel; 110, fast pulley; 1100, axle sleeve section; 111, regulating wheel; 12, V-type groove; 2, blower fan; 20, the second axle; 21, the second belt wheel; 210, fast pulley; 2100, axle sleeve section; 211, regulating wheel; 22, V-type groove; 3, belt; 4, fixed tray; 5, the first fastening screw trip bolt; 6, the second fastening screw trip bolt.
Embodiment
below in conjunction with drawings and Examples, the utility model is further described:
the driving structure of a kind of belt pulley as shown in Figure 3,4, comprise the motor 1 be fixed on fixed tray 4, the first axle 10 be connected on motor, the first belt wheel 11 be fixedly set on the first axle 10, the blower fan 2 be fixedly installed, the second axle 20 be connected on blower fan 2, be fixedly set in the second belt wheel 21 on the second axle 20 and simultaneously around the belt 3 be enclosed within the first belt wheel 11 and the second belt wheel 21.In the present embodiment:
first belt wheel 11 comprise the fast pulley 110 be fixedly set on the first axle 10, can relatively fast pulley 110 near or away from the regulating wheel 111 be sleeved on fast pulley 110, the edge of fast pulley 110, regulating wheel 111 forms V-type groove 12; Same, the second belt wheel 21 also comprise the fast pulley 210 be fixedly set on the second axle 20, can relatively fast pulley 210 near or away from the regulating wheel 211 be sleeved on fast pulley 210, the edge formation V-type groove 22 of fast pulley 210, regulating wheel 211.Concrete implementation is:
fast pulley 110,210 has axle sleeve section 1100,2100, regulating wheel 111,211 is sleeved in axle sleeve section 1100,2100, the outer circumferential face of axle sleeve section 1100,2100 is provided with outside thread, the wear surface that regulating wheel 111,211 is sleeved on axle sleeve section 1100,2100 is provided with internal thread, and regulating wheel 111,211 to be matched the spacing both regulating by internal thread, outside thread.
belt 3 is the belt of the V-shaped or inverted trapezoidal of cross section, belt 3 is simultaneously around being enclosed within V-type groove 12,22, when between fast pulley 110,210 and regulating wheel 111,211, spacing regulates, the degree of depth that belt 3 embeds in V-type groove 12,22 is different, thus obtains different pitch diameter adjustments.
fast pulley 110,210 connects the first fastening screw trip bolt 5, the first fastening screw trip bolt 5 is propped up the first axle 10, second axle 20, fast pulley 110,210 and first axle 10, second axle 20 is realized fixing.
regulating wheel 111,211 is connected with the second fastening screw trip bolt 6, axle sleeve section 1100,2100 outer circumferential face of fast pulley 110,210 has tool cutting edge plane, when second fastening screw trip bolt 6 is propped up the tool cutting edge plane of axle sleeve section 1100,2100, regulating wheel 111,211 and fast pulley 110,210 fix.In the present embodiment: the second fastening screw trip bolt 6 is connected with two, two the second fastening screw trip bolts 6 are separated by 90 degree of settings; The tool cutting edge plane of axle sleeve section 1100,2100 is provided with two, and two tool cutting edge planes are separated by 180 degree of settings.Push against different tool cutting edge planes respectively by adopting two the second fastening screw trip bolts 6 respectively thus realize the relative fast pulley 110,210 of regulating wheel 111,211
1
/
4
the progressively adjustment of circle.
when needing the diameter simultaneously tuning up two belt wheels, unclamp the fastening screw 13,23 on regulating wheel 111,211, by inserting different insertion part, equal proportion improves radius, ensures velocity ratio, until fastening.
the step of installation belt wheel, fastening belt wheel is as follows: the first belt wheel 11(of first mounted motor 1 side comprises fast pulley 110 and regulating wheel 111), then the fast pulley 210 of other blower fan 2 side is installed, around upper belt 3; Then regulating wheel 211 is installed, fastening all fastening screws.
the step changing belt 3 is as follows: unclamp the fastening screw on a regulating wheel, unscrew, until belt 3 easily takes off, install new belt 3, screw fastening screw until fastening.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. the driving structure of a belt pulley, comprise the first axle, the first belt wheel be fixedly set on described first axle, the second axle, be fixedly set in the second belt wheel on described second axle and simultaneously around the belt be enclosed within described first belt wheel and the second belt wheel, it is characterized in that: described first belt wheel and the second belt wheel include and be fixedly set in the fast pulley on described first axle and described second axle, the regulating wheel be sleeved on described fast pulley respectively, and the spacing of described regulating wheel and fast pulley can be regulated by described regulating wheel; Described belt can drive the first axle and the second axle to rotate around being enclosed within described first and second belt wheels simultaneously simultaneously.
2. the driving structure of belt pulley according to claim 1, is characterized in that: the edge of described fast pulley, regulating wheel forms V-type groove, and described belt winding is in described V-type groove.
3. the driving structure of belt pulley according to claim 1 or 2, is characterized in that: described belt is the belt of the V-shaped or inverted trapezoidal of cross section.
4. the driving structure of belt pulley according to claim 1, it is characterized in that: described fast pulley has axle sleeve section, described regulating wheel is sleeved in described axle sleeve section, the outer circumferential face of described axle sleeve section is provided with outside thread, the wear surface that described regulating wheel is sleeved on described axle sleeve section is provided with internal thread, and described regulating wheel to be matched adjustment by described internal thread, outside thread.
5. the driving structure of belt pulley according to claim 1, it is characterized in that: described fast pulley connects the first fastening screw trip bolt, when described first fastening screw trip bolt props up on described first axle, the second axle, described fast pulley and described first axle, the second axle fix.
6. the driving structure of belt pulley according to claim 1, it is characterized in that: described regulating wheel is connected with the second fastening screw trip bolt, the axle sleeve section outer circumferential face of described fast pulley has tool cutting edge plane, when described second fastening screw trip bolt props up the tool cutting edge plane of described axle sleeve section, described regulating wheel and described fast pulley fix.
7. the driving structure of belt pulley according to claim 6, is characterized in that: described second fastening screw trip bolt is connected with two, and described two the second fastening screw trip bolts are separated by 90 degree of settings.
8. the driving structure of belt pulley according to claim 6 or 7, is characterized in that: the tool cutting edge plane of described axle sleeve section is provided with two, and described two tool cutting edge planes are separated by 180 degree of settings.
9. the driving structure of belt pulley according to claim 1, it is characterized in that: described first axle is the motor shaft be connected with motor, described second axle is the fan shaft be connected with blower fan.
10. the driving structure of belt pulley according to claim 9, it is characterized in that: described motor shaft is connected on motor, described fan shaft is connected on blower fan, and described motor, blower fan are all fixedly installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252911.3U CN204533411U (en) | 2015-04-24 | 2015-04-24 | The driving structure of belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252911.3U CN204533411U (en) | 2015-04-24 | 2015-04-24 | The driving structure of belt pulley |
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| CN204533411U true CN204533411U (en) | 2015-08-05 |
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| CN201520252911.3U Active CN204533411U (en) | 2015-04-24 | 2015-04-24 | The driving structure of belt pulley |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240491A (en) * | 2015-10-22 | 2016-01-13 | 清华大学 | Reducing friction wheel for rope transmission of climbing device |
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2015
- 2015-04-24 CN CN201520252911.3U patent/CN204533411U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240491A (en) * | 2015-10-22 | 2016-01-13 | 清华大学 | Reducing friction wheel for rope transmission of climbing device |
| CN105240491B (en) * | 2015-10-22 | 2017-11-28 | 清华大学 | A kind of reducing friction pulley of rope drive for climbing device |
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