CN104847858B - Double variable torque shelves mechanical tensioners - Google Patents
Double variable torque shelves mechanical tensioners Download PDFInfo
- Publication number
- CN104847858B CN104847858B CN201510275433.2A CN201510275433A CN104847858B CN 104847858 B CN104847858 B CN 104847858B CN 201510275433 A CN201510275433 A CN 201510275433A CN 104847858 B CN104847858 B CN 104847858B
- Authority
- CN
- China
- Prior art keywords
- flexible member
- cylinder body
- swing arm
- rotating shaft
- fixed
- 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.)
- Expired - Fee Related
Links
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
Abstract
The invention discloses a kind of double variable torque shelves mechanical tensioners, and it includes cylinder body；Swing arm, the swing arm are installed on the cylinder body, and relative to cylinder body around a center axis thereof；First flexible member, between cylinder body and swing arm, first flexible member is used to bias the swing arm first flexible member so that the swing arm rotates relative to the cylinder body towards first direction；Second flexible member, second flexible member is installed on the cylinder body, second flexible member is used to apply moment of torsion to swing arm so that the swing arm is rotated relative to the cylinder body towards first direction, and the gear mechanism of the torque for adjusting the second flexible member is provided with the cylinder body.The present invention can adjust expanding force with suitable for different automobile types by shift.
Description
Technical field
The present invention relates to a kind of stretcher, specifically a kind of double variable torque shelves mechanical tensioners.
Background technology
Accessory drive system is generally included in automobile engine, social now, increasing accessory drive system is logical
Belt is crossed to be transferred to the power of automobile engine on the skin belt pulley being connected with each annex from main shaft.These annexes generally include
Compressor of air conditioner, water pump, alternating current generator, hydraulic pump, servo steering device etc..In this accessory drive system, generally wrap
One or more stretchers are included, a main function of stretcher is exactly to provide certain belt for the accessory drive system of automobile
Tension force, belt is set smoothly to be delivered on the skin belt pulley of each annex car engine mechanomotive force from main shaft and be unlikely to beat
It is sliding.
Current stretcher, after assembling, the expanding force of stretcher be it is fixed, so, when for different automobile types and
Stretcher is assembled, often there are different requirements to the expanding force of stretcher, thus needs to manufacture difference for different vehicles
Formula stretcher, manufacturing cost is higher.
The content of the invention
The technical problem to be solved by the invention is to provide a kind of double variable torque shelves mechanical tensioners, it can lead to
Cross shift and adjust expanding force with suitable for different automobile types.
In order to solve the above technical problems, double variable torque shelves mechanical tensioners provided by the invention, it includes：
Cylinder body；
Swing arm, the swing arm are installed on the cylinder body, and relative to cylinder body around a center axis thereof；
First flexible member, between cylinder body and swing arm, first flexible member is used to bias first flexible member
The swing arm so that the swing arm rotates relative to the cylinder body towards first direction；
Second flexible member, second flexible member are installed on the cylinder body, and second flexible member is used for swing arm
Apply moment of torsion so that the swing arm rotates relative to the cylinder body towards first direction, is provided with the cylinder body for adjusting the
The gear mechanism of the torque of two flexible members；
Described swing arm includes swing arm main body and rotating shaft, and the second flexible member is helical spring, and the second flexible member is nested with
On the outer wall of cylinder body, multiple gear posts of circumferentially-spaced distribution, one end of the second flexible member are provided with the outer wall of cylinder body
The first fixed structure for coordinating with gear post is provided with, the other end of the second flexible member is provided with for being fixed with rotating shaft
The second fixed structure；
One end of the second described flexible member is bent into the hook portion for hooking gear post；
Be provided with the first radial groove on the outer wall of described rotating shaft, the other end twisted rotary shaft of the second flexible member it is outer
Wall and it is provided with the Access Division for being connected and fixed with the first radial groove.
After above structure, the present invention compared with prior art, has the following advantages that：
Double variable torque shelves mechanical tensioners of the present invention, the torsion of the second flexible member can be adjusted by gear mechanism
Square size, to adjust the torque that the second flexible member applies to swing arm, it can thus adjust swing arm and belt is applied
Expanding force size, the expanding forces of double variable torque shelves mechanical tensioners can be thus adjusted by gear mechanism, this
The same double variable torque shelves mechanical tensioner cans of sample are applied to different vehicles.
Described swing arm includes swing arm main body and rotating shaft, and the second flexible member is helical spring, and the second flexible member is nested with
On the outer wall of cylinder body, multiple gear posts of circumferentially-spaced distribution, one end of the second flexible member are provided with the outer wall of cylinder body
The first fixed structure for coordinating with gear post is provided with, the other end of the second flexible member is provided with for being fixed with rotating shaft
The second fixed structure, so, can be by the way that one end of the second flexible member be fixed from different gear posts, to adjust this pair
The gear of variable torque shelves mechanical tensioner, shift operation are more convenient.
One end of the second described flexible member is bent into the hook portion for hooking gear post, so so that the second elasticity
One end of element is easier mutually to fix and depart from gear post, is easy to adjust the shelves of double variable torque shelves mechanical tensioners
Position.
Be provided with the first radial groove on the outer wall of described rotating shaft, the other end twisted rotary shaft of the second flexible member it is outer
Wall and be provided with the Access Division for being connected and fixed with the first radial groove, so so that the other end of the second flexible member with
Rotating shaft fixation.
Preferably, being additionally provided with the second radial groove on the outer wall of described rotating shaft, a collar, which is nested with, is fixed on rotating shaft
End, be installed with collar the first fixture block for being connected and fixed with the first radial groove and for the second radial groove card
The second fixed fixture block is connect, so, collar is connected to the end of rotating shaft, and collar can play the clamping of spacing second flexible member
The effect in portion, the Access Division of the second flexible member is avoided to be slid out of rotating shaft the first radial groove so that the second flexible member
It is connected with rotating shaft more firm.
Preferably, described gear post has four, four gear post uniform intervals are distributed, so so that this pair of moment of torsion
Shift mechanical tensioner has four gears, goes for a variety of different vehicles, with strong applicability.
Brief description of the drawings
Fig. 1 is the structural representation of double variable torque shelves mechanical tensioners；
Fig. 2 is A-A in Fig. 1 to sectional view；
Fig. 3 is the explosive view of double variable torque shelves mechanical tensioners；
Fig. 4 is the structural representation of swing arm；
The structural representation of the flexible members of Fig. 5 second；
Fig. 6 is the structural representation of collar；
Fig. 7 is the structural representation of cylinder body.
Wherein, 1, cylinder body；101st, gear post；102nd, helical groove hole；2nd, swing arm；201st, swing arm main body；202nd, rotating shaft；
2021st, the first radial groove；2022nd, the second radial groove；203rd, helical groove hole；3rd, the first flexible member；4th, the second elasticity member
Part；401st, hook portion；402nd, Access Division；5th, collar；6th, belt pulley；7th, axle sleeve；X, central axis.
Embodiment
The present invention is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Fig. 1~Fig. 7, the double variable torque shelves mechanical tensioners of the present invention include cylinder body 1, the elasticity of swing arm 2, first
The flexible member 4 of element 3 and second.
Swing arm 2 is installed on the cylinder body 1, is connected between swing arm 2 and cylinder body 1 by rotating shaft 202, and rotating shaft 202 has
Central axis X, swing arm 2 can be rotated relative to cylinder body 1 around the central axis X, and belt pulley 6 is rotatably mounted in swing arm 2, skin
The effect of belt wheel 6 is for compressing belt, applies expanding force to belt, so that belt tension, in favor of the normal fortune of belt
Turn transmission work.
For first flexible member 3 between cylinder body 1 and swing arm 2, the first flexible member 3 is helical spring, and axle sleeve 7 is nested with
In rotating shaft 202, the first flexible member 3 is nested with axle sleeve 7, and the upper part of the first flexible member 3 screws in the inner spiral groove of swing arm 2
In hole 203, the end portion of the first flexible member 3 is screwed in the helical groove hole 102 in cylinder body 1 so that when swing arm 2 is relative to cylinder
When body 1 rotates, together with the first flexible member 3 is strained at axle sleeve 7, the first flexible member 3 is used to bias the swing arm 2, makes
Obtain the swing arm 2 to rotate towards first direction relative to the cylinder body 1, first direction is defined as the side as shown in arrow A in Fig. 3
To that is, counterclockwise.
Second flexible member 4 is installed on the cylinder body 1, and the second flexible member 4 is the helical spring that U-shape structure is set,
The lower end and the lower surface of axle sleeve 7 of second flexible member 4 offset, and the second flexible member 4 is used to apply moment of torsion to swing arm 2, also
Say that the second flexible member 4 is used for countershaft 202 and applies moment of torsion so that the swing arm 2 turns relative to the cylinder body 1 towards first direction
Dynamic, first direction is defined as the direction as shown in arrow A in Fig. 3, i.e., counterclockwise, is provided with the cylinder body 1 for adjusting
Save the gear mechanism of the torque of the second flexible member 4, that is to say, that the second flexible member 4 can be adjusted by gear mechanism
Torque, can thus adjust the moment of torsion of swing arm 2, also can adjusts this pair of variable torque shelves mechanical tensioner
Expanding force size.
As shown in Figure 4, described swing arm 2 includes swing arm main body 201 and rotating shaft 202, and swing arm main body 201 and rotating shaft 202 are solid
Fixed connection, the second flexible member 4 are nested with the outer wall of cylinder body 1, and the multiple of circumferentially-spaced distribution are provided with the outer wall of cylinder body 1
Gear post 101, one end of the second flexible member 4 are provided with the first fixed structure for coordinating with gear post 101, that is to say, that
One end of second flexible member 4 can be connected with each gear post 101, when one end and each shelves of the second flexible member 4
When position post 101 is connected, i.e., this pair of variable torque shelves mechanical tensioner adjusts each different stalls, the second flexible member 4
The other end be provided with the second fixed structure for being fixed with rotating shaft 202, that is to say, that the other end of the second flexible member 4 with
Rotating shaft 202 is fixed.
As shown in Figure 5, one end of the second described flexible member 4 is bent into the hook portion 401 for hooking gear post 101,
Hook portion 401 can hook fixation with each gear post 101 so that one end of the second flexible member 4 and the connection side of gear post 101
Just.
The first radial groove 2021 is provided with the outer wall of described rotating shaft 202, the other end of the second flexible member 4 is surround
The outer wall of rotating shaft 202 and the Access Division 402 for being connected and fixed with the first radial groove 2021 is provided with, the second flexible member 4
Other end twisted rotary shaft 202 cause the second flexible member 4 positioning be more firm between each other with rotating shaft 202, and Access Division
402 are fixed in the first radial groove 2021, while Access Division 402 and the lower surface of axle sleeve 7 offset so that the second elasticity
Element 4 and the fixation of rotating shaft 202 so that the torsion of the second flexible member 4 can be for delivery to rotating shaft 202, that is, the second elasticity
Element 4 can drive rotating shaft 202 to rotate, and also just drive swing arm 2 to rotate.
As shown in Figure 6, the second radial groove 2022, the first radial groove are additionally provided with the outer wall of described rotating shaft 202
2021 and second radial groove 2022 be symmetrical arranged on the central axis of rotating shaft 202, a collar 5, which is nested with, is fixed on rotating shaft 202
End, be installed with collar 5 the first fixture block 501 for being connected and fixed with the first radial groove 2021 and for the second footpath
The second fixture block 502 connected and fixed to groove 2022, collar 5 are fixed and are nested with the end of rotating shaft 202, and the first fixture block 501 blocks
Connect and be fixed in the first radial groove 2021, the second fixture block 502 is fixed in the second radial groove 2022, is so allowed for
Collar 5 is fixed, and collar 5 can be with the Access Division 402 of spacing second flexible member 4, the upper surface of collar 5 and the lower surface of axle sleeve 7
The Access Division 402 of second flexible member 4 is fixedly clamped, avoids the Access Division of the second flexible member 4 from the first radial groove
Slid in 2021.
Described gear post 101 has four, and four gear posts 101 are arranged on the outer wall of cylinder body 1, four gear posts 101
Outer wall circumference uniform intervals around cylinder body 1 are distributed, that is, this pair of variable torque shelves mechanical tensioner has four gears, when
When the hook portion 401 of second flexible member 4 is fixed from different gear posts 101, this pair of variable torque shelves mechanical tensioner has
Different gears, i.e. this pair of variable torque shelves mechanical tensioner have different size of expanding force, in Fig. 1, when the second bullet
Property element 4 hook portion 401 when moving counterclockwise, the moment of torsion increase of the second flexible member 4, also allow for the second elasticity member
Part 4 is applied to the moment of torsion increase in swing arm, also allows for the expanding force increase of this pair of variable torque shelves mechanical tensioner, when the
After the hook portion 401 of two flexible members 4 moves into place, gear regulation can be completed by hooking the gear post 101 of relevant position.
Only just the present invention is made that explanation using preferable example above, but is not to be construed as the limit to claim
System, structure of the invention can have other changes, be not limited to said structure.In a word, all independent claims in the present invention
Protection domain in the various change made it is within the scope of the present invention.
Claims (3)
1. a kind of double variable torque shelves mechanical tensioners, it includes：
Cylinder body (1)；
Swing arm (2), the swing arm (2) are installed on the cylinder body (1), and relative to cylinder body (1) around a center axis thereof；
First flexible member (3), first flexible member (3) are located between cylinder body (1) and swing arm (2), first flexible member
(3) it is used to bias the swing arm (2) so that the swing arm (2) rotates relative to the cylinder body (1) towards first direction；
Characterized in that, it also includes：
Second flexible member (4), second flexible member (4) are installed on the cylinder body (1), and second flexible member (4) is used
In to swing arm (2) application moment of torsion so that the swing arm (2) rotates relative to the cylinder body (1) towards first direction, the cylinder body
(1) gear mechanism of the torque for adjusting the second flexible member (4) is provided with；
Described swing arm (2) includes swing arm main body (201) and rotating shaft (202), and the second flexible member (4) is helical spring, and second
Flexible member (4) is nested with the outer wall of cylinder body (1), and multiple gears of circumferentially-spaced distribution are provided with the outer wall of cylinder body (1)
Post (101), one end of the second flexible member (4) are provided with the first fixed structure for coordinating with gear post (101), the second bullet
Property element (4) the other end be provided with for second fixed structure fixed with rotating shaft (202)；
One end of described the second flexible member (4) is bent into the hook portion (401) for hooking gear post (101)；
The first radial groove (2021), another end ring of the second flexible member (4) are provided with the outer wall of described rotating shaft (202)
The outer wall of (202) and it is provided with around the shaft for the Access Division (402) that is connected and fixed with the first radial groove (2021).
2. double variable torque shelves mechanical tensioners according to claim 1, it is characterised in that：Described rotating shaft (202)
Outer wall on be additionally provided with the second radial groove (2022), a collar (5) is nested with the end for being fixed on rotating shaft (202), collar (5)
On be installed with for the first fixture block (501) for being connected and fixed with the first radial groove (2021) and for the second radial groove
(2022) the second fixture block (502) connected and fixed.
3. double variable torque shelves mechanical tensioners according to claim 2, it is characterised in that：Described gear post
(101) there are 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 CN104847858A (en) | 2015-08-19 |
| CN104847858B true CN104847858B (en) | 2017-12-05 |
Family
ID=53847737
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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104847858B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202188077U (en) * | 2011-08-11 | 2012-04-11 | 于延军 | Control mechanism for tensioning wheel of driving belt of farm managing machine |
Family Cites Families (5)
| 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 |
| JP3025167B2 (en) * | 1995-01-24 | 2000-03-27 | ユニッタ株式会社 | Belt tensioner |
| JP4729833B2 (en) * | 2001-05-10 | 2011-07-20 | 東京自動機工株式会社 | Transmission pulley pressure control 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 |
-
2015
- 2015-05-27 CN CN201510275433.2A patent/CN104847858B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
|---|---|
| CN104847858A (en) | 2015-08-19 |
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| EXSB | Decision made by sipo to initiate substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20200527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |