CN104989793A - Double-torque gear-changeable friction shoe type tensioner - Google Patents
Double-torque gear-changeable friction shoe type tensioner Download PDFInfo
- Publication number
- CN104989793A CN104989793A CN201510275283.5A CN201510275283A CN104989793A CN 104989793 A CN104989793 A CN 104989793A CN 201510275283 A CN201510275283 A CN 201510275283A CN 104989793 A CN104989793 A CN 104989793A
- Authority
- CN
- China
- Prior art keywords
- swing arm
- cylinder body
- spiral spring
- torsion spring
- friction shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a double-torque gear-changeable friction shoe type tensioner. The double-torque gear-changeable friction shoe type tensioner comprises a cylinder body, a swing arm, a torsion spring, a damping element and a spiral spring. The torsion spring is used for pressing the swing arm to one side, to make the swing arm rotate to a first direction relative to the cylinder body, and the torsion spring has a first end used for connecting with the swing arm. The damping element cooperates with the inner surface of the cylinder body through friction. The torsion spring has a second end used for connecting with the damping element, and the second end can press the damping element between the second end of the torsion spring and the inner surface of the cylinder body, when the torsion spring is loaded in the unfolding direction. The spiral spring is mounted between the cylinder body and the swing body and used for applying a torque to the swing arm, to make the swing arm rotate to the first direction relative to the cylinder body. The cylinder body is provided with a grade mechanism used for adjuring the torque of the spiral spring. Tension forces supported by the double-torque gear-changeable friction shoe type tensioner can be adjusted through changing the grades so that the tension forces can be suitable for different vehicles.
Description
Technical field
The present invention relates to a kind of stretcher, specifically a kind of two variable torque shelves friction shoe type stretcher.
Background technique
Generally include accessory drive system in motor car engine, now society, increasing accessory drive system is logical
Cross belt the power of motor car engine is passed to the skin belt pulley that is connected with each annex from main shaft.These annexes generally include air condition compressor, water pump, alternator, oil hydraulic pump, servo steering device etc.In this accessory drive system, generally include one or more stretcher, a Main Function of stretcher is exactly for the accessory drive system of automobile provides certain belt tension, makes belt car engine mechanomotive force can be unlikely to skid smoothly from the skin belt pulley that main shaft is delivered to each annex.
Current stretcher, after assembling, the expanding force of stretcher is fixing, like this, when assembling stretcher for different automobile types, often there is different requirement to the expanding force of stretcher, so just need to manufacture different stretchers for different vehicles, manufacture cost is higher.
Summary of the invention
Technical problem to be solved by this invention is, provide a kind of two variable torque shelves friction shoe type stretcher, it can regulate expanding force to be applicable to different automobile types by shift.
For solving the problems of the technologies described above, provided by the invention pair of variable torque shelves friction shoe type stretcher, it comprises:
Cylinder body;
Swing arm, this swing arm is installed on described cylinder body, and relative to cylinder body around a center axis thereof;
Torsion spring, this torsion spring is between cylinder body and swing arm, and this torsion spring is used for swing arm described in bias voltage, and described swing arm is rotated towards first direction relative to described cylinder body, and this torsion spring has the first end engaged with swing arm;
Damping member, the internal surface frictional fit of this damping member and cylinder body, torsion spring has the second end engaged with damping member, make when loading described torsion spring along expansion direction, between the oppressed the second end at described torsion spring of described damping member and the internal surface of described cylinder body;
Spiral spring, this spiral spring is installed between described cylinder body and described swing arm, this spiral spring is used for applying moment of torsion to swing arm, described swing arm being rotated towards first direction relative to described cylinder body, described cylinder body being provided with the gear mechanism of the torque for regulating spiral spring.
After adopting above structure, the present invention compared with prior art, has following advantage:
Of the present invention pair of variable torque shelves friction shoe type stretcher, the torque of spiral spring can be regulated by gear mechanism, with the torque regulating spiral spring to apply swing arm, so just can regulate the expanding force size that swing arm applies belt, so just can be regulated the expanding force of two variable torque shelves friction shoe type stretcher by gear mechanism, same like this pair of variable torque shelves friction shoe type stretcher just goes for different vehicles.
As improvement, described swing arm comprises swing arm main body and rotating shaft, spiral spring is nested with in rotating shaft, cylinder body is provided with multiple gear hole that circumference is spaced apart, one end of spiral spring is provided with the first fixed structure for coordinating with gear hole, the other end of spiral spring is provided with for second fixed structure fixing with rotating shaft, like this, can by one end of spiral spring be fixed from different gear hole, regulate the gear of this pair of variable torque shelves friction shoe type stretcher, shift operation more for convenience.
As improvement, one latch is pluggable to be plugged in gear hole, one end of described spiral spring is bent into the hook portion for hooking latch, like this, one end of spiral spring ratio is made to be easier to fix with latch and depart from, and latch can be plugged in each gear hole easily, be convenient to the gear regulating two variable torque shelves friction shoe type stretcher.
As improvement, the outer wall of described rotating shaft is provided with a radial jack, the other end of spiral spring is provided with the inserted part for connecting and fixing with this radial jack, like this, makes the other end and the rotating shaft fixation of spiral spring.
As improvement, described gear hole has four, four gear hole uniform intervals distributions, and like this, make this pair of variable torque shelves friction shoe type stretcher have four gears, go for multiple different vehicle, applicability is stronger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is partial sectional view of the present invention;
Fig. 3 is explosive view of the present invention;
Fig. 4 is the structural representation of swing arm;
Fig. 5 is the structural representation of spiral spring;
Fig. 6 is the structural representation of cylinder body;
Fig. 7 makes the structural representation of damping member.
Wherein, 1, cylinder body; 101, gear hole; 2, swing arm; 201, swing arm main body; 202, rotating shaft; 2021, radial jack; 3, torsion spring; 301, first end; 302, the second end; 4, spiral spring; 401, hook portion; 402, inserted part; 5, damping member; 501, groove; 6, latch; 7, belt pulley; 8, mandrel; 9, hoof seat; 10, axle sleeve; X, central axis.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Shown in Fig. 1 ~ Fig. 3, the present invention's two variable torque shelves friction shoe type stretcher, it comprises cylinder body 1, swing arm 2, torsion spring 3, damping member 5 and spiral spring 4.
Swing arm 2 is installed on described cylinder body 1, be connected by rotating shaft 202 between swing arm 2 with cylinder body 1, rotating shaft 202 has central axis X, swing arm 2 can be rotated around this central axis X relative to cylinder body 1, belt pulley 7 is rotatable to be installed in swing arm 2, and the effect of belt pulley 7 is used to compress belt, comes to apply expanding force to belt, to make belt tension, be beneficial to the normal operation transmission work of belt.
Torsion spring 3 is between cylinder body 1 and swing arm 2, torsion spring 3 is for swing arm described in bias voltage 2, described swing arm 2 is rotated towards first direction relative to described cylinder body 1, that is torsion spring 3 pairs of swing arms 2 apply the elastic force to the deflection of belt tension direction, first direction is defined as the direction as shown in arrow A in Fig. 3 herein, namely counterclockwise, this torsion spring 3 has the first end 301 engaged with swing arm 2, and that is first end 301 offsets fixing with the boss in swing arm 2.Torsion spring 3 is working spring, i.e. provide the spring of expanding force in the stretcher of routine of the prior art.
Damping member 5 is arranged in the cavity of cylinder body 1 inside, the internal surface frictional fit of damping member 5 and cylinder body 1, torsion spring 3 has the second end 302 engaged with damping member 5, as shown in Figure 7, damping member 5 has a groove 501, the second end 302 of torsion spring 3 is positioned at this groove 501 and offsets fixing with the sidewall of this groove 501, make when loading described torsion spring along expansion direction, between the oppressed the second end at described torsion spring of described damping member and the internal surface of described cylinder body, thus make damping member produce friction damping force, continue to stop torsion spring to load, swing arm so just can be made to apply expanding force due to the elastic force of torsion spring and damping member friction damping force to belt, with tensioner belt.Damping member 5 is friction hoof, the parts of friction damping force are provided in the stretcher of i.e. routine of the prior art, hoof seat 9 is positioned at the bottom of cylinder body 1, rubbing, hoof is mobilizable to be arranged on hoof seat 9, an axle sleeve 10 is provided with in cylinder body 1, torsion spring 3 is nested with on axle sleeve 10, and the upper end of axle sleeve 10 and the upper-end surface of cylinder body 1 offset, and lower end and the hoof seat 9 of axle sleeve 10 offset.
Spiral spring 4 is installed between described cylinder body 1 and described swing arm 2, this spiral spring 4 is for applying moment of torsion to swing arm 2, that is spiral spring 4 applies moment of torsion for countershaft 202, swing arm 2 is rotated towards first direction relative to cylinder body 1, first direction is defined as the direction as shown in arrow A in Fig. 3 herein, namely counterclockwise, described cylinder body 1 is provided with the gear mechanism of the torque for regulating spiral spring 4, that is the torque of spiral spring 4 can be regulated by gear mechanism, so just can regulate the moment of torsion of swing arm 2, also the expanding force size of this pair of variable torque shelves friction shoe type stretcher can just be regulated.Spiral spring 4 is shift spring, the spring providing variable torque in the stretcher namely in the present invention.
By mandrel 8, hoof seat 9, cylinder body 1 and swing arm 2 are fixed together in the present invention, also just simultaneously by spacing to torsion spring 3, damping member 5, spiral spring 4 and axle sleeve 10 fixing.
Shown in Fig. 4 ~ Fig. 6, described swing arm 2 comprises swing arm main body 201 and rotating shaft 202, swing arm main body 201 is fixedly connected with rotating shaft 202, spiral spring 4 is nested with in rotating shaft 202, cylinder body 1 is provided with multiple gear hole 101 that circumference is spaced apart, one end of spiral spring 4 is provided with the first fixed structure for coordinating with gear hole 101, that is one end of spiral spring 4 can be connected and fixed with each gear hole 101, when one end of spiral spring 4 and each gear hole 101 are connected and fixed, i.e. this pair of variable torque shelves friction shoe type stretcher gear that regulates each different, the other end of spiral spring 4 is provided with for second fixed structure fixing with rotating shaft 202, that is one end that spiral spring 4 is another and rotating shaft 202 are fixed.
One latch 6 is pluggable to be plugged in gear hole 101, one end of described spiral spring 4 is bent into the hook portion 401 for hooking latch 6, latch 6 can be plugged in each gear hole 101, then hook portion 401 can be hooked latch 6 and fixed, when latch 6 is plugged in different gear hole 101, the gear of this pair of variable torque shelves friction shoe type stretcher is different, and the plug of latch 6 more for convenience, hook portion 401 and latch 6 fix and depart from also more for convenience, and gear is regulated more for convenience.
The outer wall of described rotating shaft 202 is provided with a radial jack 2021, the other end of spiral spring 4 is provided with the inserted part 402 for connecting and fixing with this radial jack 2021, spiral spring 4 is nested with in rotating shaft 202, then inserted part 402 is fixed in radial jack 2021, make spiral spring 4 and rotating shaft 202 fixation, make the torsion of spiral spring 4 can be delivered to rotating shaft 202, namely spiral spring 4 can drive rotating shaft 202 to rotate, and also just drives swing arm 2 to rotate.
Described gear hole 101 has four, four gear hole 101 uniform intervals distributions, also four gears are had with regard to this pair of variable torque shelves friction shoe type stretcher, when the hook portion 401 of spiral spring 4 is from when latch 6 is fixing and latch 6 is plugged in different gear hole 101, this pair of variable torque shelves friction shoe type stretcher has different gears, namely this pair of variable torque shelves friction shoe type stretcher has the expanding force of different size, as shown in fig. 1, when the hook portion 401 of spiral spring 4 is by counterclockwise rotating, the moment of torsion of spiral spring 4 increases, also the moment of torsion just making spiral spring 4 be applied in swing arm increases, also the expanding force of this pair of variable torque shelves friction shoe type stretcher is just made to increase, after the hook portion 401 of spiral spring 4 moves into place, hook the latch be plugged in corresponding gear hole and can complete gear adjustment.
Below only apply preferably example with regard to the present invention and made explanation, but can not be interpreted as it is limitations on claims, structure of the present invention can have other to change, and is not limited to said structure.In a word, all various changes done in the protection domain of independent claims of the present invention are all in protection scope of the present invention.
Claims (5)
1. a two variable torque shelves friction shoe type stretcher, it comprises:
Cylinder body (1);
Swing arm (2), this swing arm (2) is installed on described cylinder body (1), and relative to cylinder body (1) around a center axis thereof;
Torsion spring (3), this torsion spring (3) is positioned between cylinder body (1) and swing arm (2), this torsion spring (3) is for swing arm described in bias voltage (2), described swing arm (2) is rotated towards first direction relative to described cylinder body (1), and this torsion spring (3) has the first end (301) engaged with swing arm (2);
Damping member (5), the internal surface frictional fit of this damping member (5) and cylinder body (1), torsion spring (3) has the second end (302) engaged with damping member (5), make when loading described torsion spring along expansion direction, between the oppressed the second end at described torsion spring of described damping member and the internal surface of described cylinder body;
It is characterized in that, it also comprises:
Spiral spring (4), this spiral spring (4) is installed between described cylinder body (1) and described swing arm (2), this spiral spring (4) is for applying moment of torsion to swing arm (2), described swing arm (2) being rotated towards first direction relative to described cylinder body (1), described cylinder body (1) being provided with the gear mechanism of the torque for regulating spiral spring (4).
2. according to claim 1 pair of variable torque shelves friction shoe type stretcher, it is characterized in that: described swing arm (2) comprises swing arm main body (201) and rotating shaft (202), spiral spring (4) is nested with in rotating shaft (202), cylinder body (1) is provided with multiple gear hole (101) that circumference is spaced apart, one end of spiral spring (4) is provided with the first fixed structure for coordinating with gear hole (101), and the other end of spiral spring (4) is provided with for second fixed structure fixing with rotating shaft (202).
3. according to claim 2 pair of variable torque shelves friction shoe type stretcher, it is characterized in that: a latch (6) is pluggable to be plugged in gear hole (101), and one end of described spiral spring (4) is bent into the hook portion (401) for hooking latch (6).
4. according to claim 2 pair of variable torque shelves friction shoe type stretcher, it is characterized in that: the outer wall of described rotating shaft (202) is provided with a radial jack (2021), the other end of spiral spring (4) is provided with the inserted part (402) for connecting and fixing with this radial jack (2021).
5. according to claim 2 pair of variable torque shelves friction shoe type stretcher, is characterized in that: described gear hole (101) has four, four gear hole (101) uniform intervals distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275283.5A CN104989793B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves friction shoe type stretchers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275283.5A CN104989793B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves friction shoe type stretchers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104989793A true CN104989793A (en) | 2015-10-21 |
| CN104989793B CN104989793B (en) | 2017-08-29 |
Family
ID=54301649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275283.5A Expired - Fee Related CN104989793B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves friction shoe type stretchers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989793B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122400A (en) * | 2016-08-29 | 2016-11-16 | 莱顿汽车部件（苏州）有限公司 | A kind of Dual directional tightener being applied to BSG train and automobile engine system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08200460A (en) * | 1995-01-24 | 1996-08-06 | Unitta Co Ltd | Belt tensioner |
| KR100933816B1 (en) * | 2001-12-05 | 2009-12-24 | 리텐스 오토모티브 파트너쉽 | Timing belt tensioner with stop controlled by friction brake |
| CN101666369A (en) * | 2009-09-28 | 2010-03-10 | 上海贝尼汽车科技有限公司 | Belt tensioning device of vehicle engine |
| CN202188077U (en) * | 2011-08-11 | 2012-04-11 | 于延军 | Control mechanism for tensioning wheel of driving belt of farm managing machine |
| CN203309039U (en) * | 2013-06-03 | 2013-11-27 | 宁波丰茂远东橡胶有限公司 | Dual spring type tensioning wheel assembly used for engine |
-
2015
- 2015-05-27 CN CN201510275283.5A patent/CN104989793B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08200460A (en) * | 1995-01-24 | 1996-08-06 | Unitta Co Ltd | Belt tensioner |
| KR100933816B1 (en) * | 2001-12-05 | 2009-12-24 | 리텐스 오토모티브 파트너쉽 | Timing belt tensioner with stop controlled by friction brake |
| CN101666369A (en) * | 2009-09-28 | 2010-03-10 | 上海贝尼汽车科技有限公司 | Belt tensioning device of vehicle engine |
| CN202188077U (en) * | 2011-08-11 | 2012-04-11 | 于延军 | Control mechanism for tensioning wheel of driving belt of farm managing machine |
| CN203309039U (en) * | 2013-06-03 | 2013-11-27 | 宁波丰茂远东橡胶有限公司 | Dual spring type tensioning wheel assembly used for engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122400A (en) * | 2016-08-29 | 2016-11-16 | 莱顿汽车部件（苏州）有限公司 | A kind of Dual directional tightener being applied to BSG train and automobile engine system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104989793B (en) | 2017-08-29 |
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Granted publication date: 20170829 Termination date: 20200527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |