CN205918852U - Controllable damping tensioning ware of torsion spring - Google Patents
Controllable damping tensioning ware of torsion spring Download PDFInfo
- Publication number
- CN205918852U CN205918852U CN201620856624.8U CN201620856624U CN205918852U CN 205918852 U CN205918852 U CN 205918852U CN 201620856624 U CN201620856624 U CN 201620856624U CN 205918852 U CN205918852 U CN 205918852U
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- magnetorheological fluid
- fluid cylinder
- solenoid
- piston
- controllable damping
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Abstract
The utility model discloses a controllable damping tensioning ware of torsion spring, including rocker arm mechanism, torsional spring, magnetorheological suspensions jar, solenoid and bottom shell body, at its vertical steel axle that is fixed with in middle part, the ring cover is epaxial at the steel in proper order from bottom to top for solenoid, magnetorheological suspensions jar, torsional spring, rocker arm mechanism includes belt pulley, circular disk body and twists reverse the spliced pole, it is epaxial at the steel that the lower extreme that twists reverse the spliced pole passes torsional spring, magnetorheological suspensions jar, solenoid and suit in proper order, twists reverse the fixed fixed slot of piston rod joint that is equipped with on the spliced pole with the magnetorheological suspensions jar. Controllable damping tensioning ware of torsion spring can control the damping force according to the actual need of system, effectively reduce belt tension then, and control is simple and convenient with the regulation, and continuity and sensitivity are high, and the cost of manufacture is low.
Description
Technical field:
This utility model is related to a kind of torsionspring controllable damping stretcher.
Background technology:
In automobile engine front end accessory, traditional automatic tensioner basic design principles are: provide enough for belt
Tension force is it is ensured that effective transmission of power.In order to suppress the belt slippage under all operating modes, the setting of the minimum tension force of belt is based on
Bad working environments.This leads under prevailing engine steady operation, and being set higher than of belt tension is actually needed.Passing
In system accessory belt drive belt train, under each operating mode, the difference of required minimum tension force is little.Using the skin that a set of damping parameter is fixing
Belt tightener can solve the problems, such as the belt slippage under all operating modes.With to the continuous pursuit of fuel economy and Abgasgesetz
Increasingly harsh, bsg (belt start-stop) system is just being applied on electromotor more and more widely.Distinctive dynamic work in bsg system
Condition, such as start-stop, power-assisted, energy regenerating, it is desirable to belt stress can provide very high damping force in moment, suppress tensioner position
Drastically change, maintain tension level, prevent belt slippage.If according to worst operating condition design principle, the spring force of stretcher and resistance
Buddhist nun will substantially exceed the actual demand of steady state condition, lead to belt under steady state condition to bear too high tension force.This not only can increase
Engine consumption, and the service life of belt and bearing can be reduced.
It would therefore be desirable to a kind of stretcher of adaptive damping.The wink when dynamic operation condition (start-stop, power-assisted, energy regenerating)
Between improve damping；Under steady state operating conditions, return to low resistance working condition.And, follow belt vibration effect to improve tensioner
Fruit, it is desirable to stretcher rocking arm is in the direction of motion along compression belt, does not provide or only provides the damping of very little；And in opposite direction
Upper (away from Belt Centre direction), provides higher damping, and all can not meet in the stretcher using used above at present
Demand.
Utility model content:
Technical problem to be solved in the utility model is: a kind of structure of offer is simple, fabrication and installation are convenient, sensitivity
The torsionspring controllable damping stretcher of high, regulation and control convenient simultaneously energy effective control damping force.
In order to solve above-mentioned technical problem, this utility model is achieved through the following technical solutions:
A kind of torsionspring controllable damping stretcher, has bottom shell, and described controllable damping stretcher also includes rocking arm
Mechanism, torsion spring, magnetorheological fluid cylinder and electric-control system, the medium position of described bottom shell is vertically fixedly connected with a steel shaft,
Described magnetorheological fluid cylinder is placed in bottom shell, and its outward appearance is in annular and is located in steel shaft, towards its circle ring center
Side cylinder body is provided with piston mandril, and described electric-control system includes current regulation device and solenoid, solenoid ring set
In steel shaft and be placed in the bottom of magnetorheological fluid cylinder, magnetorheological fluid cylinder is placed in the magnetic field range of solenoid, described torsion spring ring
It is enclosed within steel shaft and is placed in the top of magnetorheological fluid cylinder, described rocker arm body is including belt pulley, round turntable and torsion
Connecting post, described belt pulley is placed in the disk body edge of round turntable, and torsion connecting post is fixed on round turntable bottom and is hollow
Structure, the lower end cylinder reversing connecting post sequentially passes through the center of torsion spring, magnetorheological fluid cylinder and solenoid and is sleeved on steel
On axle and can be freely rotatable in steel shaft, the lower end cylinder of described connecting post be provided with fixing groove, fixing groove and magnetorheological fluid cylinder
Piston mandril connect and fix.
Preferably, the circular disk body of described rocker arm body is provided with a fixed seat, it is solid that described belt pulley passes through fixed seat
It is scheduled in circular disk body.
Preferably, described magnetorheological fluid cylinder includes disc base plate, sector cover plate, resilient support face, arc closed plate
And piston, described disc base plate includes upper plate and lower shoe, formed magnetorheological between described upper plate and lower shoe
Liquid return flow line, described sector cover plate is placed in above upper plate, and resilient support face connects the edge of upper plate and sector cover plate,
Arc closed plate is fixedly connected with the inside edge of sector cover plate, disc base plate, between described sector cover plate, disc base plate
Form magnetic flow liquid filled cavity, described magnetic flow liquid return flow line is connected with magnetic flow liquid filled cavity, and described piston is placed in magnetic current
Become the middle part of liquid filled cavity and be classified as the first magnetic flow liquid filled cavity and the second magnetic flow liquid filled cavity, described piston
The other end is passed through arc closed plate and is fixed with the fixing groove in connecting post, and described arc closed plate is provided with and supplies piston end
The arc opening of portion's movement.
Preferably, described current regulation device is set to engine electric-controlled unit.
Preferably, being provided with slide bushing between described steel shaft and torsion connecting post.
Preferably, described belt pulley is provided with dust cap, dust cap is connected with belt pulley and fixed seat by bolt
Fixing.
Preferably, being provided with a fixture block between described connecting post and circular disk body, the upper end card of described fixture block and torsion spring
Close contact.
Compared with prior art, of the present utility model have the beneficial effect that described torsionspring controllable damping stretcher adopts
Magnetic flow liquid replaces the damping element of conventional belt stretcher, by adjusting the electric current in solenoid, changes solenoid attached
Near magnetic field is strong and weak, thus changing the viscosity of magnetic flow liquid in magnetic field, finally realizes the real-time control to belt stress damping force
System, thus being actually needed according to system, control damping force, then effectively reduce belt tension, and control and adjust simple
Conveniently, seriality and sensitivity are high, low manufacture cost, thus have certain economic benefit and practicality, suitable popularization and application.
Brief description:
Below in conjunction with the accompanying drawings this utility model is further illustrated:
Fig. 1 is configuration schematic diagram of the present utility model；
Fig. 2 is cross section structure diagram of the present utility model；
Fig. 3 is the structural representation of rocking arm of the present utility model；
Fig. 4 is magnetic flow liquid cylinder structure schematic diagram of the present utility model；
Fig. 5 is the cross section structure diagram of magnetorheological fluid cylinder of the present utility model.
Specific embodiment:
Technical scheme in this utility model embodiment will be clearly and completely described it is clear that described below
Embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the enforcement in this utility model
Example, all other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, broadly fall into
The scope of this utility model protection.
A kind of torsionspring controllable damping stretcher as shown in Figure 1 to Figure 3, has bottom shell 6, described controllable damping
Stretcher also includes rocker arm body 1, torsion spring 3, magnetorheological fluid cylinder 4 and electric-control system, and the medium position of described bottom shell 6 erects
Directly be fixedly connected with a steel shaft 7, the magnetorheological fluid cylinder of torsion spring and electric-control system be placed in bottom shell and with rocker arm body group
Become complete tensioner apparatus.
Specifically, in the present embodiment, described magnetorheological fluid cylinder 4 is placed in bottom shell 6, and its outward appearance is in annular and ring
It is placed in steel shaft 7, piston mandril 401 is provided with the side cylinder body towards its circle ring center, piston mandril herein and steel shaft
Between do not produce interference, and then do not affect to install and use, described electric-control system includes current regulation device 9 and solenoid 5,
Solenoid 5 ring set and is placed in the bottom of magnetorheological fluid cylinder 4 in steel shaft 7, and magnetorheological fluid cylinder 4 is placed in the magnetic field of solenoid 5
In the range of, current regulation device changes the magnetic field power that the size of electric current in solenoid changes around solenoid then, continues
And change the viscosity of the magnetic flow liquid in magnetorheological fluid cylinder so that from the joint outer part that piston mandril connects produce different
Damping force.
Described torsion spring 3 ring set and is placed in the top of magnetorheological fluid cylinder 4 in steel shaft 7, and described rocker arm body 1 is including skin
Belt wheel 2, round turntable 101 and torsion connecting post 102, described belt pulley 2 is placed in the disk body edge of round turntable 101, reverses
Connecting post 102 is fixed on round turntable 101 bottom and is hollow structure, and the lower end cylinder reversing connecting post 102 sequentially passes through torsion
The center of spring 3, magnetorheological fluid cylinder 4 and solenoid 5 is simultaneously sleeved in steel shaft 7 and can be freely rotatable in steel shaft 7, described company
The lower end cylinder connecing post 102 is provided with fixing groove 8, and fixing groove 8 is connected and fixed with the piston mandril 401 of magnetorheological fluid cylinder 4.
In actual applications, for further facilitating, belt pulley is fixed in described circular disk body, the circle of described rocking arm 1
Disk body 101 is provided with a fixed seat 103, and described belt pulley 2 is fixed in circular disk body 101 by fixed seat 103.As preferred
Embodiment, described belt pulley 2 is provided with dust cap 20, and dust cap 20 is connected with belt pulley 2 and fixed seat 103 by bolt
Fixing.Then dustproof effect can be played to belt pulley, it is to avoid dust wherein affects its rotation today then.
In addition, as shown in Figure 4, Figure 5, in actual applications, for further facilitating connecting post and magnetorheological fluid cylinder clamping
Fixing, and for further enhancing the controllability of stretcher damping, described magnetorheological fluid cylinder 4 includes disc base plate, sector cover plate
10th, resilient support face 11, arc closed plate 12 and piston 13, described disc base plate includes upper plate 14 and lower shoe
15, form magnetic flow liquid return flow line 16 between described upper plate 14 and lower shoe 15, described sector cover plate 10 is placed in upper plate
Above in the of 14, resilient support face 11 connects the edge of upper plate 14 and sector cover plate 10, arc closed plate 12 and sector cover plate 10,
The inside edge of disc base plate is fixedly connected, and forms magnetic flow liquid filled cavity between described sector cover plate 10, disc base plate,
Described magnetic flow liquid return flow line 16 is connected with magnetic flow liquid filled cavity, and described piston 13 is placed in the middle part of magnetic flow liquid filled cavity
And it is classified as the first magnetic flow liquid filled cavity 17 and the second magnetic flow liquid filled cavity 18, the other end of described piston 13 passes through
Arc closed plate 12 and being fixed with the fixing groove 8 in connecting post 102, described arc closed plate 12 is provided with for piston 13 end
The arc opening of portion's movement.Thus, by piston and fixing groove are fixed clamping, thus, when described belt pulley is to circular disk body
When producing tension force, the connecting post of circular disk body bottom, along the axis radial rotating of steel shaft so that torsion spring is twisted, makes then then
Obtain torsion spring and produce reactive torque, then counteracting force is produced to rocking arm and belt pulley, so that the belt on belt pulley is opened
Tightly, belt is then made to keep suitable tensile force.And first in magnetorheological fluid cylinder will be promoted when rocking arm reciprocally swinging
In magnetic flow liquid filling cavity, magnetic flow liquid is pushed in magnetic flow liquid return flow line by piston, and flows out to the second magnetic from the other end
In rheology liquid filling cavity, because solenoid is close to the bottom of magnetorheological fluid cylinder, thus, stay regulation device to adjust when controlling electricity
During the magnetic current input of economize on electricity magnetic coil, magnetic flow liquid can be filled with the electromagnetic field that the magnetic flow liquid of intracavity produces, and further root
Commonly use bingham model according to magnetic flow liquid constitutive relation, when belt needs larger damping, increase the electric current in solenoid,
Magnetic induction in magnetic field increases, and then makes the shear stress of magnetic flow liquid bigger, thus meaning rocking arm toward physical pendulum
Disorder of internal organs needs to overcome bigger damping, thus.Export suitable electric current in the suitable time, then just can reach control damping output
Purpose.
Further facilitate the output of regulation and control electric current, described current regulation device 9 is set to engine electric-controlled unit.
In addition, being the frictional force between reducing steel shaft and being connected, between described steel shaft 7 and connecting post 102, it is provided with cunning
Dynamic bushing 19.
In actual applications, it is provided with a fixture block 21, described fixture block 21 and torsion spring between described connecting post and circular disk body
Upper end clamping contact so that in circular disk body rotation process with torsion spring clamping.
Above-mentioned torsionspring controllable damping stretcher adopts magnetic flow liquid to replace the damping element of conventional belt stretcher, leads to
Overregulate the electric current in solenoid, the magnetic field changing near solenoid is strong and weak, thus changing the viscous of magnetic flow liquid in magnetic field
Degree, finally realize the real-time control to belt stress damping force, thus being actually needed according to system, control damping force,
Then effectively reduce belt tension, and control and adjust simple and convenient, seriality and sensitivity are high, low manufacture cost.
It is emphasized that: the above is only preferred embodiment of the present utility model, not this utility model is appointed
What pro forma restriction, every any simple modification above example made according to technical spirit of the present utility model, etc.
With change and modification, all still fall within the range of technical solutions of the utility model.
Claims (7)
1. a kind of torsionspring controllable damping stretcher, there is bottom shell (6) it is characterised in that: described controllable damping tensioning
Device also includes rocker arm body (1), torsion spring (3), magnetorheological fluid cylinder (4) and electric-control system, the middle position of described bottom shell (6)
Put and be vertically fixedly connected with a steel shaft (7),
Described magnetorheological fluid cylinder (4) is placed in bottom shell (6), and its outward appearance is in annular and is located in steel shaft (7), in direction
The side cylinder body of its circle ring center is provided with piston mandril (401),
Described electric-control system includes current regulation device (9) and solenoid (5), and solenoid (5) ring set is in steel shaft (7)
And it is placed in the bottom of magnetorheological fluid cylinder (4), magnetorheological fluid cylinder (4) is placed in the magnetic field range of solenoid (5),
Described torsion spring (3) ring set is gone up in steel shaft (7) and is placed in the top of magnetorheological fluid cylinder (4),
Described rocker arm body (1) includes belt pulley (2), round turntable (101) and reverses connecting post (102),
Described belt pulley (2) is placed in the disk body edge of round turntable (101), reverses connecting post (102) and is fixed on round turntable
(101) bottom and be hollow structure, reverse connecting post (102) lower end cylinder sequentially pass through torsion spring (3), magnetorheological fluid cylinder (4)
And the center of solenoid (5) to be sleeved on steel shaft (7) upper and can go up freely rotatable in steel shaft (7),
The lower end cylinder of described connecting post (102) is provided with fixing groove (8), the piston top of fixing groove (8) and magnetorheological fluid cylinder (4)
Bar (401) connects and fixes.
2. a kind of torsionspring controllable damping stretcher according to claim 1, its feature exists
In: the circular disk body (101) of described rocker arm body is provided with a fixed seat (103), and described belt pulley (2) passes through fixed seat
(103) it is fixed in circular disk body (101).
3. a kind of torsionspring controllable damping stretcher according to claim 1 it is characterised in that: described magnetorheological fluid cylinder
(4) disc base plate, sector cover plate (10), resilient support face (11), arc closed plate (12) and piston (13) are included, described
Piston (13) connects piston mandril (401), and described disc base plate includes upper plate (14) and lower shoe (15), described upper bottom
Form magnetic flow liquid return flow line (16), described sector cover plate (10) is placed in upper plate (14) between plate (14) and lower shoe (15)
Top, resilient support face (11) connects the edge of upper plate (14) and sector cover plate (10), arc closed plate (12) and sector
Cover plate (10), the inside edge of disc base plate are fixedly connected, and form magnetic current between described sector cover plate (10), disc base plate
Become liquid filled cavity, described magnetic flow liquid return flow line (16) is connected with magnetic flow liquid filled cavity, and described piston (13) is placed in magnetic current
Become the middle part of liquid filled cavity and be classified as the first magnetic flow liquid filled cavity (17) and the second magnetic flow liquid filled cavity (18), institute
The other end stating piston (13) is passed through arc closed plate (12) and is fixed with the fixing groove (8) in connecting post (102), described
Arc closed plate (12) is provided with the arc opening for piston (13) end movement.
4. a kind of torsionspring controllable damping stretcher according to claim 1 it is characterised in that: described current regulation dress
Put (9) and be set to engine electric-controlled unit.
5. a kind of torsionspring controllable damping stretcher according to claim 1 it is characterised in that: in described steel shaft (7)
And it is provided with slide bushing (19) between torsion connecting post (102).
6. a kind of torsionspring controllable damping stretcher according to claim 1 it is characterised in that: described belt pulley (2)
It is provided with dust cap (20), dust cap (20) is connected with belt pulley (2) and fixed seat (103) by bolt.
7. a kind of torsionspring controllable damping stretcher according to claim 1 it is characterised in that: described connecting post with
It is provided with a fixture block (21), described fixture block (21) is contacted with the upper end clamping of torsion spring (3) between circular disk body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856624.8U CN205918852U (en) | 2016-08-10 | 2016-08-10 | Controllable damping tensioning ware of torsion spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620856624.8U CN205918852U (en) | 2016-08-10 | 2016-08-10 | Controllable damping tensioning ware of torsion spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918852U true CN205918852U (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620856624.8U Expired - Fee Related CN205918852U (en) | 2016-08-10 | 2016-08-10 | Controllable damping tensioning ware of torsion spring |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387187A (en) * | 2017-09-18 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | Driving engine equipment |
| CN111032563A (en) * | 2017-08-29 | 2020-04-17 | 索科普哈应用研究产品商业化公司基因科学Sec | Tethered payload movement control and cable robot using magnetorheological actuators |
| CN113819174A (en) * | 2021-09-22 | 2021-12-21 | 安徽恒均粉末冶金科技股份有限公司 | Damping block for belt tensioning pulley spring based on powder metallurgy technology and preparation method |
| CN113969962A (en) * | 2020-07-22 | 2022-01-25 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
| CN115056694A (en) * | 2022-08-15 | 2022-09-16 | 依科(南通)环保科技有限公司 | Road cargo transportation equipment convenient to fast loading and unloading |
-
2016
- 2016-08-10 CN CN201620856624.8U patent/CN205918852U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111032563A (en) * | 2017-08-29 | 2020-04-17 | 索科普哈应用研究产品商业化公司基因科学Sec | Tethered payload movement control and cable robot using magnetorheological actuators |
| CN107387187A (en) * | 2017-09-18 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | Driving engine equipment |
| CN107387187B (en) * | 2017-09-18 | 2019-11-05 | 安徽江淮汽车集团股份有限公司 | Driving engine equipment |
| CN113969962A (en) * | 2020-07-22 | 2022-01-25 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
| CN113969962B (en) * | 2020-07-22 | 2023-11-21 | 广州汽车集团股份有限公司 | Tensioner and automobile engine transmission system with same |
| CN113819174A (en) * | 2021-09-22 | 2021-12-21 | 安徽恒均粉末冶金科技股份有限公司 | Damping block for belt tensioning pulley spring based on powder metallurgy technology and preparation method |
| CN113819174B (en) * | 2021-09-22 | 2023-02-10 | 安徽恒均粉末冶金科技股份有限公司 | Damping block for belt tensioner spring based on powder metallurgy technology and preparation method |
| CN115056694A (en) * | 2022-08-15 | 2022-09-16 | 依科(南通)环保科技有限公司 | Road cargo transportation equipment convenient to fast loading and unloading |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20210810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |