CN202646563U - Straining mechanism of chain transmission system or belt transmission system - Google Patents
Straining mechanism of chain transmission system or belt transmission system Download PDFInfo
- Publication number
- CN202646563U CN202646563U CN 201220152313 CN201220152313U CN202646563U CN 202646563 U CN202646563 U CN 202646563U CN 201220152313 CN201220152313 CN 201220152313 CN 201220152313 U CN201220152313 U CN 201220152313U CN 202646563 U CN202646563 U CN 202646563U
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- tensioning
- belt
- chain
- straining
- idle wheel
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Abstract
The utility model provides a straining mechanism of a chain transmission system or a belt transmission system, which aims to solve problems of the prior art as follows: the use is inconvenient, the structure is complex and a demand for use can not be satisfied, and comprises straining turn arms, tension fixing shafts, straining pressure plates or straining wheels, a fixing bolt and torsional springs, wherein one ends of the straining turn arms are provide with shaft sleeves, and the other ends of the straining turn arms are fixedly provided with the fixing shafts; the straining pressure plates or the straining wheels are movably mounted on the fixing shafts; the two straining turn arms are oppositely and symmetrically arranged on the two sides of a chain or a belt in the width direction; the torsion spring is sleeved outside the shaft sleeves of the two straining turn arms; and torsion arms are respectively mounted on the two straining turn arms. According to the utility model, the tightness of the chain or the belt can be automatically regulated, impact of the chain or the belt on the straining mechanism can be adapted during conversion of positive and negative rotations, and besides, the structure is simple, the noise is smaller, and the working is reliable.
Description
Technical field
The utility model relates to a kind of engineering machinery or vehicle chain drive system or belt transmission system, specially refers to a kind of for the chain drive system of engineering machinery or vehicle or the tensioning mechanism of belt transmission system.
Background technique
The tensioning mechanism of the transmission of prior art chain or belt transmission system roughly can be divided into two kinds, and a kind of is the periodic adjustment formula, and another kind is automatically tensioning type.The periodic adjustment formula be divided into again stretcher regulating type and centre distance regulating type, automatically tensioning type is divided into again hydraulic automatic tensioner formula and spring automatically tensioning type.The stretcher of periodic adjustment formula is safeguarded to be needed stretcher to be regulated on schedule or centre distance is regulated, and uses inconvenience.The most complex structure of automatically tensioning type perhaps occupies larger space, is unfavorable for practice, is that the structure of the disclosed automatically tensioning type of CN101149097A patent application is very complicated such as publication number, is unfavorable for practical application.In addition, the tensioning mechanism of the transmission of prior art chain or belt transmission system mostly only carries out tensioning to one side of chain or belt, when the engineering machinery that adopts chain drive system or belt transmission system or the positive and negative rotation of vehicle needs, perhaps need to realize advancing or when retreating, the mode of monolateral tensioning can not satisfy its usage requirement.Obviously, the tensioning mechanism of the transmission of prior art chain or belt transmission system exists and uses inconvenient, complex structure and can not satisfy the problem such as usage requirement.
Summary of the invention
, complex structure inconvenient for the use that the tensioning mechanism that solves prior art chain transmission or belt transmission system exists and can not satisfy the problem such as usage requirement the utility model proposes the tensioning mechanism of a kind of chain drive system or belt transmission system.The tensioning mechanism of the utility model chain drive system or belt transmission system comprises tensioning connecting lever, tensioning stationary axle, tensioning pressing plate or Idle wheel, fixing bolt and torsion spring, and wherein, an end of tensioning connecting lever is provided with axle sleeve, and the other end is fixed with stationary axle; Tensioning pressing plate or Idle wheel are movably arranged on the stationary axle; Two tensioning connecting levers are symmetricly set on the both sides of the width direction of chain or belt in opposite directions, an end that is provided with axle sleeve is movably arranged on the inboard center of chain or belt by fixing bolt, the end that tensioning pressing plate or Idle wheel are installed is arranged on the outside or the inboard of chain or belt; Torsion spring set is contained in outside the axle sleeve of two tensioning connecting levers, has inside in opposite directions or outside pretightening force two and turns round arm and be installed in respectively on two tensioning connecting levers.
Further, if during the tensioning mechanism transmission adopted chain transmission of the utility model chain drive system or belt transmission system, then adopt the tensioning pressing plate, and the length of tensioning pressing plate is equal to or greater than 3 times of zip length, the width of tensioning pressing plate is not less than 50% of chain width.
Further, when if the tensioning mechanism power train of the utility model chain drive system or belt transmission system adopts the band transmission, then adopt Idle wheel, the diameter of Idle wheel is in the situation that the space permission is large as much as possible, and the surface of contact of Idle wheel and belt is circumferential groove bottom surface or circumferential plane; If Idle wheel and surface of contact belt are the circumferential groove bottom surface, then the groove floor width is not less than belt width; If Idle wheel and surface of contact belt are circumferential plane, then Idle wheel circumferential plane width is not less than 50% of belt width.
Further, the tensioning pressing plate of the tensioning mechanism of the utility model chain drive system or belt transmission system or Idle wheel adopt polyurethane, teflon, nylon or modification of nylon to make.
The useful technique effect of the tensioning mechanism of the utility model chain drive system or belt transmission system is automatically to regulate chain or belt tightness degree, chain or belt are to the impact of tensioning mechanism in the time of can adapting to the clockwise and anticlockwise conversion, and simple in structure, noise is less, reliable operation.
Description of drawings
Accompanying drawing 1 is the schematic three dimensional views that the tensioning mechanism of the utility model chain drive system or belt transmission system disperses component;
Accompanying drawing 2 is that the tensioning mechanism of the utility model chain drive system or belt transmission system is installed in schematic three dimensional views on the chain drive system.
Be further described below in conjunction with the tensioning mechanism wheel of the drawings and specific embodiments to the utility model chain drive system or belt transmission system.
Embodiment
Accompanying drawing 1 is the schematic three dimensional views that the tensioning mechanism of the utility model chain drive system or belt transmission system disperses component, accompanying drawing 2 is that the tensioning mechanism of the utility model chain drive system or belt transmission system is installed in schematic three dimensional views on the chain drive system, among the figure, 1 is fixing bolt, 2 are the tensioning connecting lever, 3 are the tensioning stationary axle, and 4 are the tensioning pressing plate, and 5 is torsion spring.As seen from the figure, the tensioning mechanism of the utility model chain drive system or belt transmission system comprises tensioning connecting lever 2, tensioning stationary axle 3, tensioning pressing plate 4 or Idle wheel, fixing bolt 1 and torsion spring 5, wherein, an end of tensioning connecting lever 2 is provided with axle sleeve, and the other end is fixed with tensioning stationary axle 3; Tensioning pressing plate 4 or Idle wheel are movably arranged on the tensioning stationary axle 3; Two tensioning connecting levers 2 are symmetricly set on the both sides of the width direction of chain or belt in opposite directions, an end that is provided with axle sleeve is movably arranged on the inboard center of chain or belt by fixing bolt 1, the end that tensioning pressing plate 4 or Idle wheel are installed is arranged on the outside or the inboard of chain or belt; Torsion spring 5 is sleeved on outside the axle sleeve of two tensioning connecting levers, has inside in opposite directions or outside pretightening force two and turns round arm and be installed in respectively on two tensioning connecting levers 2.Need to prove, in the embodiment shown in Figure 2, adopt the tensioning pressing plate that tensioning is carried out in the chain transmission, its tensioning pressing plate is arranged on the outside of chain, and by being installed in respectively inwardly two effects of turning round arm of the torsion spring of pretightening force that have in opposite directions on two tensioning connecting levers, two tensioning connecting levers relatively inwardly twist, and automatically adjust by the elasticity of tensioning pressing plate to chain, and the size of torsion spring pretightening force has determined the elasticity of chain.Obviously, tensioning pressing plate or Idle wheel also can be arranged on the inboard of chain or belt, and turn round the arm effect by being installed in respectively two of the torsion spring that has in opposite directions outside pretightening force on two tensioning connecting levers, two tensioning connecting levers relatively outwards twist, and automatically adjust by tensioning pressing plate or the Idle wheel elasticity to chain or belt, the size of torsion spring pretightening force has determined the elasticity of chain or belt.The tensioning mechanism of the utility model chain drive system or belt transmission system is provided with two tensioning connecting levers, and is arranged on two outsides or the inboard of chain or belt, therefore, can the elasticity of square both direction be automatically adjusted.In addition, the tensioning mechanism of the utility model chain drive system or belt transmission system adopts torsion spring to regulate as auto-tensioning, under the connection of same torsion spring, when power train produces clockwise and anticlockwise alternately or the moment of load sudden change, two tensioning pressing plates or Idle wheel can fluctuate simultaneously, absorb thus or slow down the impact that the sudden change of clockwise and anticlockwise conversion or load brings, to reach the purpose of noise reduction.
For guaranteeing reliability and the validity of work, if during the tensioning mechanism transmission adopted chain transmission of the utility model chain drive system or belt transmission system, then adopt the tensioning pressing plate, and the length of tensioning pressing plate is equal to or greater than 3 times of zip length, and the width of tensioning pressing plate is not less than 50% of chain width.If when power train adopts the band transmission, then adopt Idle wheel, the diameter of Idle wheel is in the situation that the space permission is large as much as possible, and the surface of contact of Idle wheel and belt is circumferential groove bottom surface or circumferential plane; If Idle wheel and surface of contact belt are the circumferential groove bottom surface, then the groove floor width is not less than belt width; If Idle wheel and surface of contact belt are circumferential plane, then Idle wheel circumferential plane width is not less than 50% of belt width.
For reducing noise and weight reduction, the tensioning pressing plate of the tensioning mechanism of the utility model chain drive system or belt transmission system or Idle wheel adopt nonmetallic material to make, and comprise polyurethane, teflon, nylon or modification of nylon.
Obviously, the useful technique effect of the tensioning mechanism of the utility model chain drive system or belt transmission system is automatically to regulate chain or belt tightness degree, can adapt to clockwise and anticlockwise when conversion chain or belt to the impact of tensioning mechanism, and simple in structure, noise is less, reliable operation.
Claims (3)
1. the tensioning mechanism of a chain drive system or belt transmission system, it is characterized in that: this tensioning mechanism comprises tensioning connecting lever, tensioning stationary axle, tensioning pressing plate or Idle wheel, fixing bolt and torsion spring, wherein, an end of tensioning connecting lever is provided with axle sleeve, and the other end is fixed with stationary axle; Tensioning pressing plate or Idle wheel are movably arranged on the stationary axle; Two tensioning connecting levers are symmetricly set on the both sides of the width direction of chain or belt in opposite directions, an end that is provided with axle sleeve is movably arranged on the inboard center of chain or belt by fixing bolt, the end that tensioning pressing plate or Idle wheel are installed is arranged on the outside or the inboard of chain or belt; Torsion spring set is contained in outside the axle sleeve of two tensioning connecting levers, has inside in opposite directions or outside pretightening force two and turns round arm and be installed in respectively on two tensioning connecting levers.
2. the tensioning mechanism of described chain drive system or belt transmission system according to claim 1, it is characterized in that: if during the transmission of transmission adopted chain, then adopt the tensioning pressing plate, and the length of tensioning pressing plate is equal to or greater than 3 times of zip length, the width of tensioning pressing plate is not less than 50% of chain width; If when power train adopts the band transmission, then adopt Idle wheel, the diameter of Idle wheel is in the situation that the space permission is large as much as possible, and the surface of contact of Idle wheel and belt is circumferential groove bottom surface or circumferential plane; If the surface of contact of Idle wheel and belt is the circumferential groove bottom surface, then the groove floor width is not less than belt width; If Idle wheel and surface of contact belt are circumferential plane, then Idle wheel circumferential plane width is not less than 50% of belt width.
3. according to claim 1 described chain drive system or belt transmission system, it is characterized in that: the tensioning pressing plate of tensioning mechanism or Idle wheel adopt polyurethane, teflon, nylon or modification of nylon to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152313 CN202646563U (en) | 2012-04-12 | 2012-04-12 | Straining mechanism of chain transmission system or belt transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152313 CN202646563U (en) | 2012-04-12 | 2012-04-12 | Straining mechanism of chain transmission system or belt transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646563U true CN202646563U (en) | 2013-01-02 |
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ID=47415673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220152313 Expired - Lifetime CN202646563U (en) | 2012-04-12 | 2012-04-12 | Straining mechanism of chain transmission system or belt transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165210A (en) * | 2013-05-19 | 2014-11-26 | 中山市聚龙纺织机械科技有限公司 | Chain tensioner |
| CN107299967A (en) * | 2017-08-02 | 2017-10-27 | 北京卫星制造厂 | A kind of 3D printer automatic belt tensioning device and its method |
| CN107416659A (en) * | 2017-09-01 | 2017-12-01 | 通力股份公司 | Drive chain tension means, method and use its escalator system |
-
2012
- 2012-04-12 CN CN 201220152313 patent/CN202646563U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165210A (en) * | 2013-05-19 | 2014-11-26 | 中山市聚龙纺织机械科技有限公司 | Chain tensioner |
| CN107299967A (en) * | 2017-08-02 | 2017-10-27 | 北京卫星制造厂 | A kind of 3D printer automatic belt tensioning device and its method |
| CN107416659A (en) * | 2017-09-01 | 2017-12-01 | 通力股份公司 | Drive chain tension means, method and use its escalator system |
| US10457524B2 (en) | 2017-09-01 | 2019-10-29 | Kone Corporation | Tension device for drive chain, method and escalator system using same |
| CN107416659B (en) * | 2017-09-01 | 2020-10-02 | 通力股份公司 | Drive chain tensioning device and method and escalator system using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161230 Address after: 111 No. 402760 Chongqing District of Bishan city streets Yongjia Bi Springs Road Patentee after: Chongqing Jialing global motor vehicle Co. Ltd. Address before: 400032 Shapingba Chongqing double monument Patentee before: China Jialing Industry Co., Ltd. (Group) |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |