CN104847858A - Dual-torque variable-gear mechanical tensioner - Google Patents
Dual-torque variable-gear mechanical tensioner Download PDFInfo
- Publication number
- CN104847858A CN104847858A CN201510275433.2A CN201510275433A CN104847858A CN 104847858 A CN104847858 A CN 104847858A CN 201510275433 A CN201510275433 A CN 201510275433A CN 104847858 A CN104847858 A CN 104847858A
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- CN
- China
- Prior art keywords
- elastic element
- cylinder body
- swing arm
- rotating shaft
- mechanical tensioner
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- 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.)
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Springs (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The invention discloses a dual-torque variable-gear mechanical tensioner comprising a cylinder, a rocker, a first elastic element and a second elastic element. The rocker is mounted on the cylinder and can rotate relative a central axis of the cylinder; the first elastic element is disposed between the cylinder and the rocker; the first elastic element is used for biasing the rocker, so that the rocker can rotate in a first direction relative to the cylinder; the second elastic element is mounted on the cylinder and is used for applying torque to the cylinder so that the rocker can rotate in the first direction relative to the cylinder; the cylinder is provided with a gear mechanism used for adjusting torque of the second elastic element. The dual-torque variable-gear mechanical tensioner allows tension to be adjusted through gear varying to adapt to different vehicles.
Description
Technical field
The present invention relates to a kind of stretcher, specifically a kind of two variable torque shelves mechanical tensioner.
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 formula 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 mechanical tensioner, 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 mechanical tensioner, 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;
First elastic element, this first elastic element is between cylinder body and swing arm, and this first elastic element is used for swing arm described in bias voltage, and described swing arm is rotated towards first direction relative to described cylinder body;
Second elastic element, this second elastic element is installed on described cylinder body, this second elastic element 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 the second elastic element.
After adopting above structure, the present invention compared with prior art, has following advantage:
Of the present invention pair of variable torque shelves mechanical tensioner, the torque of the second elastic element can be regulated by gear mechanism, with the torque regulating the second elastic element 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 mechanical tensioner by gear mechanism, same like this pair of variable torque shelves mechanical tensioner just goes for different vehicles.
As preferably, described swing arm comprises swing arm main body and rotating shaft, second elastic element is helical spring, second elastic element is nested with on the outer wall of cylinder body, the outer wall of cylinder body is provided with multiple gear posts that circumference is spaced apart, one end of second elastic element is provided with the first fixed structure for coordinating with gear post, the other end of the second elastic element is provided with for second fixed structure fixing with rotating shaft, like this, can by one end of the second elastic element be fixed from different gear posts, regulate the gear of this pair of variable torque shelves mechanical tensioner, shift operation more for convenience.
As preferably, one end of the second described elastic element is bent into the hook portion for hooking gear post, like this, makes one end of the second elastic element ratio be easier to fix with gear post and depart from, and is convenient to the gear regulating two variable torque shelves mechanical tensioner.
As preferably, the outer wall of described rotating shaft is provided with the first radial groove, the outer wall of the other end twisted rotary shaft of the second elastic element and the inserted part be provided with for connecting and fixing with the first radial groove, like this, make the other end and the rotating shaft fixation of the second elastic element.
As preferably, the outer wall of described rotating shaft is also provided with the second radial groove, one collar is nested with the end being fixed on rotating shaft, collar is installed with the first fixture block for connecting and fixing with the first radial groove and the second fixture block for connecting and fixing with the second radial groove, like this, collar is connected to the end of rotating shaft, collar can play the effect of the inserted part of spacing second elastic element, avoid the inserted part of the second elastic element from landing in the first radial groove of rotating shaft, the second elastic element is connected with rotating shaft more firm.
As preferably, described gear post has four, and four gear post uniform intervals distributions, like this, make this pair of variable torque shelves mechanical tensioner have four gears, go for multiple different vehicle, applicability is stronger.
Accompanying drawing explanation
Fig. 1 is the structural representation of two variable torque shelves mechanical tensioner;
Fig. 2 is that A-A in Fig. 1 is to sectional view;
Fig. 3 is the explosive view of two variable torque shelves mechanical tensioner;
Fig. 4 is the structural representation of swing arm;
The structural representation of Fig. 5 second elastic element;
Fig. 6 is the structural representation of collar;
Fig. 7 is the structural representation of cylinder body.
Wherein, 1, cylinder body; 101, gear post; 102, helical groove hole; 2, swing arm; 201, swing arm main body; 202, rotating shaft; 2021, the first radial groove; 2022, the second radial groove; 203, helical groove hole; 3, the first elastic element; 4, the second elastic element; 401, hook portion; 402, inserted part; 5, collar; 6, belt pulley; 7, 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. 7, the two variable torque shelves mechanical tensioner of the present invention comprises cylinder body 1, swing arm 2, first elastic element 3 and the second elastic element 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 6 is rotatable to be installed in swing arm 2, and the effect of belt pulley 6 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.
First elastic element 3 is between cylinder body 1 and swing arm 2, first elastic element 3 is helical spring, axle sleeve 7 is nested with in rotating shaft 202, first elastic element 3 is nested with on axle sleeve 7, the upper end part of the first elastic element 3 screws in swing arm 2 internal spiral slotted eye 203, the end portion of the first elastic element 3 screws in the helical groove hole 102 in cylinder body 1, make when swing arm 2 is rotated relative to cylinder body 1, together with first elastic element 3 is strained at axle sleeve 7, first elastic element 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, first direction is defined as the direction as shown in arrow A in Fig. 3, namely counterclockwise.
Second elastic element 4 is installed on described cylinder body 1, second elastic element 4 is the helical spring of U-shaped vibrational power flow, the lower end of the second elastic element 4 and the lower end surface of axle sleeve 7 offset, second elastic element 4 is for applying moment of torsion to swing arm 2, also just say that the second elastic element 4 applies moment of torsion for countershaft 202, described swing arm 2 is rotated towards first direction relative to described cylinder body 1, first direction is defined as the direction as shown in arrow A in Fig. 3, namely counterclockwise, described cylinder body 1 is provided with the gear mechanism of the torque for regulating the second elastic element 4, that is the torque of the second elastic element 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 mechanical tensioner can just be regulated.
As shown in Figure 4, 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, second elastic element 4 is nested with on the outer wall of cylinder body 1, the outer wall of cylinder body 1 is provided with multiple gear posts 101 that circumference is spaced apart, one end of second elastic element 4 is provided with the first fixed structure for coordinating with gear post 101, that is one end of the second elastic element 4 can be connected and fixed with each gear post 101, when one end of the second elastic element 4 and each gear post 101 are connected and fixed, namely this pair of variable torque shelves mechanical tensioner regulates each different gear, the other end of the second elastic element 4 is provided with for second fixed structure fixing with rotating shaft 202, that is the other end of the second elastic element 4 and rotating shaft 202 are fixed.
As shown in Figure 5, one end of the second described elastic element 4 is bent into the hook portion 401 for hooking gear post 101, and hook portion 401 can be hooked fixing with each gear post 101, make one end of the second elastic element 4 and gear post 101 easy to connect.
The outer wall of described rotating shaft 202 is provided with the first radial groove 2021, the outer wall of the other end twisted rotary shaft 202 of the second elastic element 4 and the inserted part 402 be provided with for connecting and fixing with the first radial groove 2021, the other end twisted rotary shaft 202 of the second elastic element 4 makes the second elastic element 4 locate more firm each other with rotating shaft 202, and inserted part 402 is fixed in the first radial groove 2021, inserted part 402 offsets with the lower end surface of axle sleeve 7 simultaneously, make the second elastic element 4 and rotating shaft 202 fixation, make the second elastic element 4 torsion can be delivered to rotating shaft 202, namely the second elastic element 4 can drive rotating shaft 202 to rotate, also swing arm 2 is just driven to rotate.
As shown in Figure 6, the outer wall of described rotating shaft 202 is also provided with the second radial groove 2022, first radial groove 2021 and the second radial groove 2022 are symmetrical arranged about the central axis of rotating shaft 202, one collar 5 is nested with the end being fixed on rotating shaft 202, collar 5 is installed with the first fixture block 501 for connecting and fixing with the first radial groove 2021 and the second fixture block 502 for connecting and fixing with the second radial groove 2022, collar 5 is fixedly nested with when the end of rotating shaft 202, first fixture block 501 is fixed in the first radial groove 2021, second fixture block 502 is fixed in the second radial groove 2022, collar 5 is so just made to fix, collar 5 can the inserted part 402 of spacing second elastic element 4, the inserted part 402 of the second elastic element 4 is fixedly clamped by the upper-end surface of collar 5 and the lower end surface of axle sleeve 7, avoid the inserted part of the second elastic element 4 from landing in the first radial groove 2021.
Described gear post 101 has four, four gear posts 101 are arranged on the outer wall of cylinder body 1, four gear posts 101 are around the outer wall circumference uniform intervals distribution of cylinder body 1, namely this pair of variable torque shelves mechanical tensioner has four gears, when the hook portion 401 of the second elastic element 4 is fixed from different gear posts 101, this pair of variable torque shelves mechanical tensioner has different gears, namely this pair of variable torque shelves mechanical tensioner has the expanding force of different size, as in Fig. 1, when the hook portion 401 of the second elastic element 4 is by when counterclockwise moving, the moment of torsion of the second elastic element 4 increases, also the moment of torsion just making the second elastic element 4 be applied in swing arm increases, also the expanding force of this pair of variable torque shelves mechanical tensioner is just made to increase, after the hook portion 401 of the second elastic element 4 moves into place, the gear post 101 hooking relevant position can complete gear and regulate.
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 (6)
1. a two variable torque shelves mechanical tensioner, 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;
First elastic element (3), this first elastic element (3) is positioned between cylinder body (1) and swing arm (2), and this first elastic element (3), for swing arm described in bias voltage (2), makes described swing arm (2) rotate towards first direction relative to described cylinder body (1);
It is characterized in that, it also comprises:
Second elastic element (4), this second elastic element (4) is installed on described cylinder body (1), this second elastic element (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 the second elastic element (4).
2. according to claim 1 pair of variable torque shelves mechanical tensioner, it is characterized in that: described swing arm (2) comprises swing arm main body (201) and rotating shaft (202), second elastic element (4) is helical spring, second elastic element (4) is nested with on the outer wall of cylinder body (1), the outer wall of cylinder body (1) is provided with multiple gear posts (101) that circumference is spaced apart, one end of second elastic element (4) is provided with the first fixed structure for coordinating with gear post (101), the other end of the second elastic element (4) is provided with for second fixed structure fixing with rotating shaft (202).
3. according to claim 2 pair of variable torque shelves mechanical tensioner, is characterized in that: one end of described the second elastic element (4) is bent into the hook portion (401) for hooking gear post (101).
4. according to claim 2 pair of variable torque shelves mechanical tensioner, it is characterized in that: the outer wall of described rotating shaft (202) is provided with the first radial groove (2021), the outer wall of the other end twisted rotary shaft (202) of the second elastic element (4) and the inserted part (402) be provided with for connecting and fixing with the first radial groove (2021).
5. according to claim 4 pair of variable torque shelves mechanical tensioner, it is characterized in that: the outer wall of described rotating shaft (202) is also provided with the second radial groove (2022), one collar (5) is nested with the end being fixed on rotating shaft (202), collar (5) is installed with the first fixture block (501) for connecting and fixing with the first radial groove (2021) and the second fixture block (502) for connecting and fixing with the second radial groove (2022).
6. according to claim 2 pair of variable torque shelves mechanical tensioner, is characterized in that: described gear post (101) has four, four gear post (101) uniform intervals distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275433.2A CN104847858B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves mechanical tensioners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510275433.2A CN104847858B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves mechanical tensioners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847858A true CN104847858A (en) | 2015-08-19 |
| CN104847858B CN104847858B (en) | 2017-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510275433.2A Expired - Fee Related CN104847858B (en) | 2015-05-27 | 2015-05-27 | Double variable torque shelves mechanical tensioners |
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| Country | Link |
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| CN (1) | CN104847858B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718227A1 (en) * | 1987-06-01 | 1988-12-15 | Werner Kotzab | Tensioner for belts and the like, particularly in motor vehicle engines |
| US5139463A (en) * | 1991-06-05 | 1992-08-18 | Litens Automotive Partnership | Serpentine drive with coil spring alternator connection |
| JPH08200460A (en) * | 1995-01-24 | 1996-08-06 | Unitta Co Ltd | Belt tensioner |
| CN1385632A (en) * | 2001-05-10 | 2002-12-18 | 东京自动机工株式会社 | Pulley pressure control system for delivery device |
| CN201627886U (en) * | 2009-12-14 | 2010-11-10 | 纽尚(宁波)汽车轴承制造有限公司 | Hydraulic automobile tensioner |
| CN202188077U (en) * | 2011-08-11 | 2012-04-11 | 于延军 | Control mechanism for tensioning wheel of driving belt of farm managing machine |
-
2015
- 2015-05-27 CN CN201510275433.2A patent/CN104847858B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3718227A1 (en) * | 1987-06-01 | 1988-12-15 | Werner Kotzab | Tensioner for belts and the like, particularly in motor vehicle engines |
| US5139463A (en) * | 1991-06-05 | 1992-08-18 | Litens Automotive Partnership | Serpentine drive with coil spring alternator connection |
| JPH08200460A (en) * | 1995-01-24 | 1996-08-06 | Unitta Co Ltd | Belt tensioner |
| CN1385632A (en) * | 2001-05-10 | 2002-12-18 | 东京自动机工株式会社 | Pulley pressure control system for delivery device |
| CN201627886U (en) * | 2009-12-14 | 2010-11-10 | 纽尚(宁波)汽车轴承制造有限公司 | Hydraulic automobile tensioner |
| CN202188077U (en) * | 2011-08-11 | 2012-04-11 | 于延军 | Control mechanism for tensioning wheel of driving belt of farm managing machine |
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| Publication number | Publication date |
|---|---|
| CN104847858B (en) | 2017-12-05 |
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Granted publication date: 20171205 Termination date: 20200527 |