CN101324262A - Belt tensioning force automatic regulating device - Google Patents
Belt tensioning force automatic regulating device Download PDFInfo
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- CN101324262A CN101324262A CNA2008101384427A CN200810138442A CN101324262A CN 101324262 A CN101324262 A CN 101324262A CN A2008101384427 A CNA2008101384427 A CN A2008101384427A CN 200810138442 A CN200810138442 A CN 200810138442A CN 101324262 A CN101324262 A CN 101324262A
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- belt wheel
- regulating device
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- belt
- band
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Abstract
The invention discloses an automatic regulating device of belt tension, which comprises a tension regulator and a belt wheel swing frame. The tension regulator comprises a threaded rod and a cylindrical threaded sleeve which are mutually matched, a cylindrical spring seat moveably sleeved with the threaded sleeve, and a compression spring with two ends respectively supported on the end part of the threaded sleeve and on the bottom part of the cylindrical spring seat; wherein a hinge shaft at the tail end of the threaded rod is connected to a frame; a hinge shaft at the fixed end of the spring seat is connected to the belt wheel swing frame; a strip-shaped observation hole is formed on the spring seat corresponding to the position of the compression spring; a scale strip is arranged at the edge of the observation hole; and a hinge shaft at the lower end of the belt wheel frame is connected to a frame. The regulating device can regulate tension precisely, and regulate the tension thereof in the operating state of a machine.
Description
(1) technical field
The present invention relates to a kind of belt tensioning force automatic regulating device, adjust belt tension, solve the belt transmission problem of skidding, belong to mechanical department of the Chinese Academy of Sciences band drive technology field by automatic adjustment center distance of belt wheel.
(2) background technique
The band transmission is the driving mechanism that is most widely used in the mechanical transmission fields, and is especially extensive with the transmission of V-type band.The band transmission has lot of advantages, but except synchronous band transmission, other band transmissions all have its intrinsic defective, and wherein to reduce be important defective to the transmission efficiency that causes with the band in the transmission process and the slide relative between the belt wheel.Owing to being with transmission based on the frictional force between band and the belt wheel, driving wheel drives follower and realizes transmission, in its transmission process, belongs to a kind of slip that can't overcome because of being with pilled-in selvedge and the caused elasticity sliding motion in slack list.
In the exploration neutralization practice that improves the band transmission efficiency, what mainly consider is band skidding under its condition that runs up, skid is that making has the band of direct relation and the frictional force between the belt wheel to reduce in this pressure owing to centrifugal force makes pressure and cornerite between band and the belt wheel reduce.So, perhaps adopt tension device to increase pressure between band and the belt wheel frictional force between improving band and being with for improving frictional force between band and the belt wheel normally by adopting V-type band or other novel bands.For the latter; the main at present method that adopts the Idle wheel adjustment and change two-wheeled centre distance; the method that wherein changes two-wheeled centre distance mainly is with the adjusting bolt motor that belt wheel is housed to be moved along slide rail during in the band level or near the layout of level; when vertical or subvertical layout, make motor around little axle swing with screw rod and adjusting nut; these two kinds modes of regulating center distance of belt wheel all are the manual tune nuts; by virtue of experience judge the tightness of band then; be unfavorable for accurately adjusting the degree of tightness of band; if tension then increase the pressure of belt shaft; its bearing life is shortened; and this adjustment also is limited under outage state to be adjusted; can't in the mechanical movement process, adjust, can't adapt to concrete operating mode.
For the adjustment mode that adopts Idle wheel, at first its application can be restricted, and with definite, because of the long-term adjustment of using after causing strip length elongated, this adjustment mode is powerless for band when Machine Design is assembled for this setup.And for the bigger driving belt of centre distance, Idle wheel is to be provided with in the zone circle the inside that band constitutes usually, and this mode can reduce cornerite, thereby has reduced the transmission efficiency of band relatively.
(3) summary of the invention
The present invention can only adjust under outage state in order to overcome in the present tape handler tension device; and can't accurately adjust tension force; also can't self-adjusting defective; provide a kind of and can accurately adjust tension force, and can carry out the belt tensioning force automatic regulating device that the oneself adjusts tension force at the machine run state.
The present invention is by the following technical solutions:
This invention belt tensioning force automatic regulating device comprises tension force regulator and belt wheel swing frame, comprise tension force regulator and belt wheel swing frame, wherein the tension force regulator comprises the screw rod that matches and the swivel nut of cylindricality, with the cylindrical springs seat of this swivel nut pivot bush unit, and two ends withstand on the pressure spring of described swivel nut end and cylindrical springs seat bottom respectively; Wherein screw rod tail end hinge is connected on the frame, and spring seat fixed end hinge is connected on the belt wheel swing frame; Described spring seat has a bar shaped peep hole corresponding to described pressure spring position, and this peep hole edge is provided with and the corresponding scale strip of described pressure spring spring force; Belt wheel swing frame lower end hinge is connected on the frame.
Above-mentioned belt tensioning force automatic regulating device, described tension force regulator respectively is provided with one corresponding to the belt wheel both sides.Described swivel nut end is provided with hexagonal spiral shell head.
In the existing tape handler with tension force and frame to a component equal and opposite in direction of belt wheel support reaction, direction is opposite, this power is directly provided by frame; For the mechanism of existing can regulate centre distance, this counter-force is provided by thread screw mechanism in addition; Above-mentioned these two kinds of mechanisms all can't accurately show the tension force size of band, and it is suitable by virtue of experience to judge whether.Belt tensioning force automatic regulating device of the present invention then is main this support reaction that provides by the tension force regulator.This automatic control tegulatingdevice depends on band its pressure is become as a whole; it comprises the screw rod that matches and the swivel nut of cylindricality; cylindrical springs seat with this swivel nut pivot bush unit; and two ends withstand on the pressure spring of described swivel nut end and cylindrical springs seat bottom respectively; shut down when adjusting; when just adjusting pre-tensioning; can directly adjust above-mentioned thread screw mechanism; and pressure spring is stressed and compressive strain process that take place is a linear change; can react the size of this power accurately; so the present invention has a bar shaped peep hole corresponding to described pressure spring position on spring seat; this peep hole edge is provided with and the corresponding scale strip of described pressure spring spring force, can adjust the pre-tensioning of band according to the maximum belt speed of work accurately by above-mentioned this peep hole and scale strip.
At the high speed operation state or because of the aging elongated situation of length, the relation that the present invention is directly proportional with its deformation length by means of spring stress realizes adjusting voluntarily the tension force of being with for band.The only tension force of tape travel is:
V is a belt speed in the formula, from formula as can be seen, square being directly proportional of required tension force and belt speed because the band tension force controlling device of existing tape handler can only be adjusted under outage state, under fast state, its centre distance can't change.Because action of centrifugal force reduces the active force between band and the belt wheel, thereby causes the frictional force between band and belt wheel to reduce, and band is skidded, the transmission efficiency of band descends; The present invention is under the tape running state, automatically adjust centre distance to adapt to by self-deformation because of the band situation that pressure diminishes between the band that brought and belt wheel that runs up, though the frictional force between band and belt wheel also has decline, but be enough to keep the required frictional force of band normal operation, and skidding can not occur, thereby the transmission efficiency of band can not descended.
In addition, under the bad situation of road conditions, for the existing controlling device that can't regulate centre distance automatically, have and to jump out pulley groove because of vibratory impulse, and the tension force regulator that the present invention comprised can be adjusted centre distance automatically by pressure spring driving pulley swing frame, and make band can not jump out pulley groove, guarantee the reliability of tape handler.
(4) description of drawings
Fig. 1 is the tension force controller structure schematic representation of the specific embodiment of the invention.
Fig. 2 is the structure principle chart of the specific embodiment of the invention.
Among the figure: 1, hinge axis hole, 2, screw rod, 3, swivel nut, 4, the cylindrical springs seat, 5, the bar shaped peep hole, 6, pressure spring, 7, hinge axis hole, 8, scale strip, 9, frame, 10, band, 11, the belt wheel swing frame, 12, belt wheel, 13, rotating shaft.
(5) embodiment
Specify structural principle of the present invention below in conjunction with Figure of description:
With reference to Figure of description 1 and 2, this embodiment belt tensioning force automatic regulating device, comprise tension force regulator and belt wheel swing frame 11, wherein the tension force regulator comprises the screw rod 2 that matches and the swivel nut 3 of cylindricality, with the cylindrical springs seat 4 of this swivel nut pivot bush unit, and two ends withstand on the pressure spring 6 of described swivel nut end and cylindrical springs seat bottom respectively; Wherein screw rod tail end hinge is connected on the frame 9, and spring seat fixed end hinge is connected on the belt wheel swing frame; Described spring seat has a bar shaped peep hole 5 corresponding to described pressure spring position, and this peep hole edge is provided with and the corresponding scale strip 8 of described pressure spring spring force; Belt wheel swing frame lower end hinge is connected on the frame.
If a tension force regulator only is set on the belt pulley swing frame, then belt shaft will inevitably be subjected to a turning torque, this turning torque can make Bearing with wheel except being subjected to alternating stress, also can be subjected to and the corresponding extra additional stress of above-mentioned turning torque, spot corrosion occurs and lost efficacy thereby cause retainer to decrease ring or ball and raceway, shortened the working life of bearing greatly.So this embodiment respectively is provided with one at described tension force regulator corresponding to belt wheel 12 both sides, thereby it is the same to constitute two sizes, and acting on the band swing frame with band changes apart from the support reaction of cancelling out each other, thereby eliminates the suffered additional stress of Bearing with wheel with realization.
Generally, be that can regulate conforms to a conventional pattern 3 with hand, if but described swivel nut end is provided with hexagonal spiral shell head, can more help regulating conforming to a conventional pattern and the matching relationship of screw rod.
Claims (3)
1. belt tensioning force automatic regulating device, it is characterized in that: comprise tension force regulator and belt wheel swing frame (11), wherein the tension force regulator comprises the screw rod (2) that matches and the swivel nut (3) of cylindricality, with the cylindrical springs seat (4) of this swivel nut pivot bush unit, and two ends withstand on the pressure spring (6) of described swivel nut end and cylindrical springs seat bottom respectively; Wherein screw rod tail end hinge is connected on the frame (9), and spring seat fixed end hinge is connected on the belt wheel swing frame; Described spring seat has a bar shaped peep hole (5) corresponding to described pressure spring position, and this peep hole edge is provided with and the corresponding scale strip of described pressure spring spring force (8); Belt wheel swing frame lower end hinge is connected on the frame.
2. belt tensioning force automatic regulating device according to claim 1 is characterized in that: described tension force regulator respectively is provided with one corresponding to belt wheel (12) both sides.
3. belt tensioning force automatic regulating device according to claim 1 is characterized in that: described swivel nut (3) end is provided with hexagonal spiral shell head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101384427A CN101324262A (en) | 2008-07-28 | 2008-07-28 | Belt tensioning force automatic regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101384427A CN101324262A (en) | 2008-07-28 | 2008-07-28 | Belt tensioning force automatic regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101324262A true CN101324262A (en) | 2008-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101384427A Pending CN101324262A (en) | 2008-07-28 | 2008-07-28 | Belt tensioning force automatic regulating device |
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| CN (1) | CN101324262A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865056A (en) * | 2012-10-15 | 2013-01-09 | 周生祥 | Roller and compression roller type oil pumping device with non-metallic counterweight box |
| CN107355457A (en) * | 2017-08-31 | 2017-11-17 | 安徽省鱼跃生物科技有限公司 | Support adjusting rod |
| CN108443438A (en) * | 2018-05-16 | 2018-08-24 | 无锡永凯达齿轮有限公司 | Exempt to adjust tensioning wheel |
| CN110994443A (en) * | 2019-10-28 | 2020-04-10 | 王玲 | Supplementary insulated wire fixing-line device of using of electric power construction |
| CN112145639A (en) * | 2020-09-11 | 2020-12-29 | 台州以承机电有限公司 | Installation component capable of adjusting automatic tensioning of motor |
-
2008
- 2008-07-28 CN CNA2008101384427A patent/CN101324262A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865056A (en) * | 2012-10-15 | 2013-01-09 | 周生祥 | Roller and compression roller type oil pumping device with non-metallic counterweight box |
| CN107355457A (en) * | 2017-08-31 | 2017-11-17 | 安徽省鱼跃生物科技有限公司 | Support adjusting rod |
| CN108443438A (en) * | 2018-05-16 | 2018-08-24 | 无锡永凯达齿轮有限公司 | Exempt to adjust tensioning wheel |
| CN108443438B (en) * | 2018-05-16 | 2023-07-14 | 无锡永凯达齿轮有限公司 | Adjustment-free tensioning wheel |
| CN110994443A (en) * | 2019-10-28 | 2020-04-10 | 王玲 | Supplementary insulated wire fixing-line device of using of electric power construction |
| CN110994443B (en) * | 2019-10-28 | 2020-12-11 | 国网福建省电力有限公司尤溪县供电公司 | Supplementary insulated wire fixing-line device of using of electric power construction |
| CN112145639A (en) * | 2020-09-11 | 2020-12-29 | 台州以承机电有限公司 | Installation component capable of adjusting automatic tensioning of motor |
| CN112145639B (en) * | 2020-09-11 | 2021-12-07 | 江苏万基传动科技有限公司 | Installation component capable of adjusting automatic tensioning of motor |
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Open date: 20081217 |