CN106168274B - Chain tensioning device - Google Patents
Chain tensioning device Download PDFInfo
- Publication number
- CN106168274B CN106168274B CN201610759002.8A CN201610759002A CN106168274B CN 106168274 B CN106168274 B CN 106168274B CN 201610759002 A CN201610759002 A CN 201610759002A CN 106168274 B CN106168274 B CN 106168274B
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- China
- Prior art keywords
- pawl
- case
- transmission gear
- main
- tensioning
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The present invention relates to adjusting device for chains, specially chain tensioning device, solve the problems, such as existing chain tension equipment manufacturing cost it is expensive, it is complicated, install and use inconvenience, scheme is：Main-gear box inner support has main shaft, both sides are through with pinion case, case inner support has counter drive shaft, transmission gear is fixed on transmission shaft, main shaft end is fixed with crank, pinion case perforation connection tensioning pawl case, and counter drive shaft end is fixed with transmission gear, tensioning pawl is installed in tensioning pawl case, tensioning pawl and tensioning pawl case side are equipped with and hook pawl.Non-return case is further included, isolation nut, friction plate, ratchet, check pawl, cushion block are equipped in non-return case.Advantage：1st, clever structure controls transmission shaft that tensioning claw hook hanging chain is driven to be tensioned by crank；2nd, it is compact-sized, rapid operation；3rd, non-return mechanism is ingenious in design, and preventing tension chain rear chain from stretching tight de- causes crank transmission shaft to reverse crank rotation is driven to injure operating personnel.
Description
Technical field
The present invention relates to adjusting device for chains, specially chain tensioning device.
Background technology
In heavy machinery industry, chain use is very frequent, however chain replace or maintenance after how often face by chain
The problem of tensioning.At present, chain fastening carries out drawing locking using manually locking or with large-scale chain tightener always, not only
Work takes, is laborious, and large scale equipment purchasing price is expensive, installs and complicated for operation, and the chain of large scale equipment tightens to be had again
There is certain danger, use very inconvenient.Therefore, a kind of cheap, simple in structure, easy to operate, province of design
When labour-saving chain tensioning device be very it is necessary to.
Invention content
The present invention solve the problems, such as existing chain tension equipment manufacturing cost it is expensive, it is complicated, install and use inconvenience, carry
For a kind of chain tensioning device.
The present invention is achieved by the following technical solutions：Chain tensioning device, including main-gear box, on the main-gear box
The perpendicular bisector of surface along main-gear box length direction is symmetrically fixed with the two pinion casees penetrated through with main-gear box, described two
The rectangle with two pinion case perforations of two ends opening is fixedly connected between the pinion case of pinion case upper end two
Tight pawl case；The main-gear box central supported has main shaft, and the main shaft lower end is pierced by outside main-gear box, the main biography
Moving axis lower end is fixedly connected with the crank vertical with main shaft, and the crank two ends are fixedly connected with rocking arm；It is described two
There are two pinion case inner supports along the symmetrical counter drive shaft of the perpendicular bisector of main-gear box length direction, the counter drive shaft
Both ends be respectively supported at main-gear box lower surface and tensioning pawl case upper surface；It is fixed on main shaft in the main-gear box
There is the first transmission gear, second coordinated with the first transmission gear is fixed on two counter drive shafts in the main-gear box and is passed
Moving gear and third transmission gear, second transmission gear is identical with the diameter of third transmission gear, in the tensioning pawl case
Two counter drive shafts on be respectively fixed with the 4th transmission gear and the 5th transmission gear, be installed with tensioning in the tensioning pawl case
Pawl, the tensioning pawl one side are bonded with tensioning one medial surface of pawl case, and the tensioning pawl another side is and the 4th transmission gear
With the rack of the 5th transmission gear cooperation, the tensioning pawl end is fixed with the hook pawl with chain interoperation towards rack heteropleural,
The one side of the tensioning pawl case towards hook pawl on tensioning pawl is also fixed with the hook pawl with chain interoperation.Main-gear box inner support master
Transmission shaft fixes the first transmission gear on main shaft, and both sides are respectively symmetrically supported by counter drive shaft, and it is equal to be fixed with diameter
The second transmission gear and third transmission gear, rotation crank drive main shaft rotation, the first transmission gear drive second pass
Moving gear and the rotation of third transmission gear.Gear diameter on counter drive shaft is equal, ensure transmission when tensioning pawl move in parallel and
Tensioning pawl between two counter drive shafts will not generate stretching or compression stress.The 4th transmission gear and are fixed in counter drive shaft upper end
Five transmission gears respectively with the rack cooperation of tensioning pawl side, are moved in parallel with carry-over bar.It is tensioned pawl and is tensioned pawl case side
It hooks pawl and catches on chain respectively, shake crank, two are tensioned relative motion between pawls, tensioning or release chain.
The main-gear box lower surface is further fixed on non-return case, and the main shaft lower end passes through non-return case and is pierced by non-return
Case lower surface is fixed with crank；One section in non-return case of the main shaft is cased with screw thread, and the main shaft is in non-return case
Interior one section is disposed with isolation nut, lower friction plate, ratchet, upper friction plate, cushion block from the bottom to top, is set in the non-return case
There is isolation nut card slot, the isolation nut is arranged in isolation nut card slot, the isolation nut and the spiral shell on main shaft
Line coordinates, and the cushion block is fixedly connected with main shaft, and the ratchet sleeve on main shaft, stop by the main-gear box lower surface
It returns in case and is fixed with bearing block, the bearing of support main shaft, the bearing block lower surface and pad are fixed in the bearing block
There are gaps for block upper surface；The non-return case inner support has the check pawl coordinated with ratchet.Screw thread, spiral shell are cased on main shaft
Line is with being isolated nut cooperation, and when main shaft rotates, isolation nut card slot limits the rotation that nut is isolated so that every
From nut, bearing block, block grip upper friction plate and lower friction plate, so as to compress ratchet so that main shaft and ratchet, on rub
Pad, lower friction plate, cushion block become an entirety and rotate, when stop operating main shaft when, check pawl to ratchet carry out
Limiting, prevents ratchet counter-rotating.When rotating backward main shaft, isolation nut is limited by card slot, is unclamped to friction plate, spine
The compacting of wheel, ratchet are detached with main shaft, and ratchet loses the position-limiting action to main shaft.
First transmission gear, the second transmission gear, third transmission gear are secondary transmission gear, first transmission
Gear, the second transmission gear, third transmission gear, the 4th transmission gear, the 5th total transmission velocity ratio of transmission gear are 1：9.Two level passes
Moving gear transmits rotating speed and more stablizes, and more effortless, is not easy abrased gear, structure is compacter.
The present invention has the following advantages：1st, clever structure controls transmission shaft to drive tensioning claw hook hanging chain by crank
Tightly；2nd, it is compact-sized, rapid operation；3rd, non-return mechanism is ingenious in design, and preventing tension chain rear chain from stretching tight de- causes crank to be driven
Axis, which reverses, drives crank rotation to injure operating personnel.
Description of the drawings
Fig. 1 is structure longitudinal sectional view of the present invention；
Fig. 2 is Fig. 1 vertical views；
In figure：1- main-gear boxs, 2- pinion casees, 3- tensioning pawl casees, 4- main shafts, 5- cranks, 6- rocking arms, 7- pairs pass
Moving axis, the first transmission gears of 8-, the second transmission gears of 9-, 10- third transmission gears, the 4th transmission gears of 11-, 12- the 5th are passed
Moving gear, 13- tensioning pawls, 14- non-return casees, 15- isolation nuts, friction plate under 16-, 17- ratchets, 18- upper friction plates, 19- pads
Block, 20- isolation nut card slots, 21- bearing blocks, 22- check pawls.
Specific embodiment
Chain tensioning device, including main-gear box 1,1 upper surface of main-gear box is hung down along 1 length direction of main-gear box
Line is symmetrically fixed with the two pinion casees 2 penetrated through with main-gear box 1, described two pinion case 2 upper ends two pinion case 2
Between be fixedly connected with the rectangle penetrated through with two pinion casees 2 the tensioning pawl case 3 of two ends opening；In the main-gear box 1
The heart is supported by main shaft 4, and 4 lower end of main shaft is pierced by outside main-gear box 1, and 4 lower end of main shaft is fixedly connected
There is the crank 5 vertical with main shaft 4,5 two ends of crank are fixedly connected with rocking arm 6；It is propped up in described two pinion casees 2
There are two divide along the both ends of the symmetrical counter drive shaft 7 of the perpendicular bisector of 1 length direction of main-gear box, the counter drive shaft 7 for support
It is not supported on 3 upper surface of 1 lower surface of main-gear box and tensioning pawl case；Is fixed on main shaft 4 in the main-gear box 1
One transmission gear 8 is fixed with second coordinated with the first transmission gear 8 on two counter drive shafts 7 in the main-gear box 1 and passes
Moving gear 9 and third transmission gear 10, second transmission gear 9 is identical with the diameter of third transmission gear 10, the tensioning
The 4th transmission gear 11 and the 5th transmission gear 12, the tensioning pawl case are respectively fixed on two counter drive shafts 7 in pawl case 3
Tensioning pawl 13 is installed in 3, tensioning 13 one side of pawl is bonded with tensioning 3 one medial surface of pawl case, tensioning 13 opposite side of pawl
Face is the rack coordinated with the 4th transmission gear 11 and the 5th transmission gear 12, and 13 end of the tensioning pawl is fixed with towards rack
The hook pawl with chain interoperation of heteropleural, the one side of the tensioning pawl case 3 towards hook pawl on tensioning pawl 13 is also fixed with and chain
The hook pawl of cooperation.
When it is implemented, 1 lower surface of main-gear box is further fixed on non-return case 14,4 lower end of main shaft passes through
Non-return case 14 is simultaneously pierced by 14 lower surface of non-return case and is fixed with crank 5；One section in non-return case 14 of the main shaft 4 is cased with spiral shell
Line, one section in non-return case 14 of the main shaft 4 are disposed with isolation nut 15, lower friction plate 16, spine from the bottom to top
Wheel 17, upper friction plate 18, cushion block 19, the non-return case 14 is interior to be equipped with isolation nut card slot 20, and the isolation nut 15 is arranged on
It is isolated in nut card slot 20, the isolation nut 15 and the thread fitting on main shaft 4, the cushion block 19 and main shaft 4
It is fixedly connected, the ratchet 17 is sleeved on main shaft 4, and bearing block is fixed in the 1 lower surface non-return case 14 of main-gear box
21, the bearing of support main shaft 4 is fixed in the bearing block 21,21 lower surface of bearing block is stayed with 19 upper surface of cushion block
There is gap；14 inner support of non-return case has the check pawl 22 coordinated with ratchet 17.
First transmission gear 8, the second transmission gear 9, third transmission gear 10 be secondary transmission gear, described first
Transmission gear 8, the second transmission gear 9, third transmission gear 10, the 4th transmission gear 11,12 total transmission velocity ratio of the 5th transmission gear
It is 1：9.
In use, the hook pawl for being tensioned 13 side of 3 side of pawl case and tensioning pawl is hooked on chain respectively, crank 5 is held
On rocking arm 6, rotate main shaft 4, the first transmission gear 8 drives the second transmission gear 9 and third transmission gear 10 to rotate, together
When the 4th transmission gear 11 and the 5th transmission gear 12 driving tensioning pawl 13 moved in parallel in tensioning pawl case 3, tensioning pawl 13 side
The pawl that hooks in face shortens with being tensioned the hook pawl relative distance of 3 side of pawl case, so as to tension chain.Meanwhile the isolation in non-return case 14
Nut card slot 20 limits isolation nut 15, and isolation nut 15 moves longitudinally upward on main shaft 4, so as to compress lower friction
Piece 16, ratchet 17, upper friction plate 18 and cushion block 19, at this time ratchet 17 and main shaft 4 be linked to be an entirety, check pawl 22 is right
Ratchet 17 is limited, and prevents its reverse rotation, and then is limited main shaft 4 and reversed, and preventing the reaction force of tension chain makes
Main drive shaft 4 reverses, and the rotation of crank 5 is driven to injure operating personnel.The chain of tensioning can be installed at this time, dismantle, tie up
It repaiies and replaces.After the completion of operation, counter-rotating main shaft 4, isolation nut card slot 20 limits isolation nut 15, is isolated
Nut 15 moves longitudinally downward on main shaft 4, unclamps friction plate and ratchet 17, and ratchet 17 is detached with main shaft 4 at this time,
Check pawl 22 loses the position-limiting action to main shaft 4.First transmission gear 8 drives the second transmission gear 9, third driving cog
10 counter-rotatings are taken turns, the 4th transmission gear 11 co-axially fixed with the two, the 5th transmission gear 12 drive tensioning pawl 13 toward reversely
It is mobile, so as to unclamp the tensioning of the chain power.
Claims (3)
1. a kind of chain tensioning device, it is characterised in that：Including main-gear box（1）, the main-gear box（1）Upper surface is along master gear
Case（1）The perpendicular bisector of length direction is symmetrically fixed with and main-gear box（1）Two pinion casees of perforation（2）, described two pairs
Gear-box（2）The pinion case of upper end two（2）Between be fixedly connected with two ends opening with two pinion casees（2）Perforation
Rectangle is tensioned pawl case（3）；The main-gear box（1）Central supported has main shaft（4）, the main shaft（4）Lower end is pierced by
Main-gear box（1）Outside, the main shaft（4）Lower end is fixedly connected with and main shaft（4）Vertical crank（5）, it is described to shake
（5）Two ends are fixedly connected with rocking arm（6）；Described two pinion casees（2）There are two inner supports along main-gear box（1）Length
The symmetrical counter drive shaft of the perpendicular bisector in direction（7）, the counter drive shaft（7）Both ends be respectively supported at main-gear box（1）
Lower surface and tensioning pawl case（3）Upper surface；The main-gear box（1）Interior main shaft（4）On be fixed with the first transmission gear
（8）, the main-gear box（1）Two interior counter drive shafts（7）On be fixed with and the first transmission gear（8）Second transmission of cooperation
Gear（9）With third transmission gear（10）, second transmission gear（9）With third transmission gear（10）Diameter it is identical, institute
State tensioning pawl case（3）Two interior counter drive shafts（7）On be respectively fixed with the 4th transmission gear（11）With the 5th transmission gear
（12）, the tensioning pawl case（3）Inside it is installed with tensioning pawl（13）, the tensioning pawl（13）One side and tensioning pawl case（3）One inside
Face paste is closed, the tensioning pawl（13）Another side is and the 4th transmission gear（11）With the 5th transmission gear（12）The tooth of cooperation
Item, the tensioning pawl（13）End is fixed with the hook pawl with chain interoperation towards rack heteropleural, the tensioning pawl case（3）Direction
It is tensioned pawl（13）The upper one side for hooking pawl is also fixed with the hook pawl with chain interoperation.
2. chain tensioning device according to claim 1, it is characterised in that：The main-gear box（1）Lower surface is further fixed on
Non-return case（14）, the main shaft（4）Lower end passes through non-return case（14）And it is pierced by non-return case（14）Lower surface is fixed with crank
（5）；The main shaft（4）In non-return case（14）Interior one section is cased with screw thread, the main shaft（4）In non-return case（14）It is interior
One section be disposed with isolation nut from the bottom to top（15）, lower friction plate（16）, ratchet（17）, upper friction plate（18）, cushion block
（19）, the non-return case（14）It is interior to be equipped with isolation nut card slot（20）, the isolation nut（15）It is arranged on isolation nut card slot
（20）It is interior, the isolation nut（15）With main shaft（4）On thread fitting, the cushion block（19）With main shaft（4）Gu
Fixed connection, the ratchet（17）It is sleeved on main shaft（4）On, the main-gear box（1）Lower surface non-return case（14）Inside it is fixed with
Bearing block（21）, the bearing block（21）Inside it is fixed with support main shaft（4）Bearing, the bearing block（21）Lower surface with
Cushion block（19）There are gaps for upper surface；The non-return case（14）Inner support has and ratchet（17）The check pawl of cooperation（22）.
3. chain tensioning device according to claim 2, it is characterised in that：First transmission gear（8）, the second driving cog
Wheel（9）, third transmission gear（10）For secondary transmission gear, first transmission gear（8）, the second transmission gear（9）, third
Transmission gear（10）, the 4th transmission gear（11）, the 5th transmission gear（12）Resultant gear ratio is 1：9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759002.8A CN106168274B (en) | 2016-08-30 | 2016-08-30 | Chain tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759002.8A CN106168274B (en) | 2016-08-30 | 2016-08-30 | Chain tensioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106168274A CN106168274A (en) | 2016-11-30 |
| CN106168274B true CN106168274B (en) | 2018-07-10 |
Family
ID=57376308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610759002.8A Active CN106168274B (en) | 2016-08-30 | 2016-08-30 | Chain tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168274B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109230274A (en) * | 2018-10-11 | 2019-01-18 | 王跃平 | Hand chain tightener |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4881928A (en) * | 1988-10-07 | 1989-11-21 | Bernal Medardo P | Chain tensioning device |
| DE202007006678U1 (en) * | 2007-05-07 | 2008-09-11 | Yapici, Kurt Imren, Dr.-Ing. | traction drive |
| CN201898310U (en) * | 2010-11-04 | 2011-07-13 | 湖州市三利线缆有限公司 | Double-hook wire grip |
| CN102840294A (en) * | 2012-08-16 | 2012-12-26 | 厦门福美科技有限公司 | One-way step transmission mechanism |
| DE102013211748A1 (en) * | 2012-07-17 | 2014-01-23 | Schaeffler Technologies AG & Co. KG | Guiding device for a belt of a belt pulley belt drive |
| CN205244275U (en) * | 2015-12-28 | 2016-05-18 | 重庆安特管业有限公司 | Coiler transmission |
| CN105782376A (en) * | 2016-05-27 | 2016-07-20 | 钟晓悦 | Driving belt auxiliary extrusion conical disk belt-type variable transmission |
| CN205407128U (en) * | 2016-02-25 | 2016-07-27 | 陈秀花 | Stable in structure just is used for two turn -buckles that collude of fine setting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030224889A1 (en) * | 2002-06-03 | 2003-12-04 | Tai-Yang Luh | Idle wheel adjustment assembly |
-
2016
- 2016-08-30 CN CN201610759002.8A patent/CN106168274B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4881928A (en) * | 1988-10-07 | 1989-11-21 | Bernal Medardo P | Chain tensioning device |
| DE202007006678U1 (en) * | 2007-05-07 | 2008-09-11 | Yapici, Kurt Imren, Dr.-Ing. | traction drive |
| CN201898310U (en) * | 2010-11-04 | 2011-07-13 | 湖州市三利线缆有限公司 | Double-hook wire grip |
| DE102013211748A1 (en) * | 2012-07-17 | 2014-01-23 | Schaeffler Technologies AG & Co. KG | Guiding device for a belt of a belt pulley belt drive |
| CN102840294A (en) * | 2012-08-16 | 2012-12-26 | 厦门福美科技有限公司 | One-way step transmission mechanism |
| CN205244275U (en) * | 2015-12-28 | 2016-05-18 | 重庆安特管业有限公司 | Coiler transmission |
| CN205407128U (en) * | 2016-02-25 | 2016-07-27 | 陈秀花 | Stable in structure just is used for two turn -buckles that collude of fine setting |
| CN105782376A (en) * | 2016-05-27 | 2016-07-20 | 钟晓悦 | Driving belt auxiliary extrusion conical disk belt-type variable transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106168274A (en) | 2016-11-30 |
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