CN108547921A - A kind of chain stretching device - Google Patents
A kind of chain stretching device Download PDFInfo
- Publication number
- CN108547921A CN108547921A CN201810750252.4A CN201810750252A CN108547921A CN 108547921 A CN108547921 A CN 108547921A CN 201810750252 A CN201810750252 A CN 201810750252A CN 108547921 A CN108547921 A CN 108547921A
- Authority
- CN
- China
- Prior art keywords
- sprocket wheel
- chain
- fastener
- stretching device
- central siphon
- 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.)
- Pending
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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
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/14—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
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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 a kind of chain stretching devices, including bracket component (10), sprocket wheel (20), fastener (30) and sprocket wheel central siphon (40), the sprocket wheel (20) is set on sprocket wheel central siphon (40), fastener (30) passes through sprocket wheel central siphon (40), and sprocket wheel (20) is supported in bracket component (10).It is an advantage of the invention that：It is simple in structure, chain is compressed using sprocket wheel, ensure that each chain link is in the same plane when chain drive, and can compress from inside to outside, can also compress from outside to inside, it is easy to operate.
Description
Technical field
The invention belongs to the technical fields of mechanical transmission, and in particular to a kind of chain stretching device.
Background technology
Chain drive is one of most common kind of drive in current mechanical equipment, in lifting equipment, parking apparatus, passenger-cargo
Chaindriven figure is seen everywhere in the equipment such as elevator, automobile or mechanism.With chaindriven frequent use, due to chain, chain
The problem of abrasion of wheel causes is also more and more, due to that can be plastically deformed after chain long-time stress, so that it is elongated, seriously
When also occur that jump tooth, fall the phenomenon that chain, so as to cause transmission process interrupt even accident occurs.Traditional sprocket tensioning structure
Sprocket wheel to be fixed on holder with bolt after artificial tensioning to achieve the purpose that tensioning, this tension structure it is inconvenient and
And labor intensity is big.
Chinese invention is created《Chain stretching device》(Authorization Notice No.：CN 202901191U) in introduce chain tension
Device compresses the chain for generating plastic deformation using sliding block, but thus it cannot be guaranteed that chain is still in same plane, if chain
Item in the same plane, does not easy to produce de- chain, falls the phenomenon that chain.
Chinese invention is created《A kind of sprocket tension device》(Authorization Notice No.：CN 204083102U) in introduce sprocket wheel
Tensioning apparatus, can only outside-in compressed, and if installation space is limited, need to be tensioned from Inside To Outside
When, such structure just seems helpless.
Invention content
The purpose of the present invention is to provide a kind of chain stretching devices, are asked with solving technology present in above-mentioned background technology
Topic.
To achieve the above object, the present invention provides the following technical solutions：A kind of chain stretching device, including：Bracket component,
Sprocket wheel, fastener and sprocket wheel central siphon, the sprocket wheel are set on sprocket wheel central siphon, and fastener passes through sprocket wheel central siphon, and sprocket wheel is supported
In bracket component.
Further, the bracket component includes tensioning frame and backstand, and tool is there are four face on the tensioning frame, and first
It is provided with the opening passed in and out for chain on face and third face, the first kidney slot is provided on the second face, is arranged on fourth face
There are multiple first through hole；The second kidney slot and multiple second through-holes, first kidney slot and are provided on the backstand
Two kidney slots are used for across fastener, and the first through hole and the second through-hole are used for through bolt and nut cooperation, by tensioning frame the
Four sides and backstand are secured together.
Further, the fastener includes screw bolt and nut.
Preferably, the fastener further includes plain cushion and cushion, and the cushion is arranged between nut and plain cushion.
Further, the sprocket wheel central siphon, which includes two, has and manages between step, it is each between pipe path partial insertion chain
Take turns in intermediate mounting hole, it is each between the diameter of large diameter portion of pipe be more than the mounting hole internal diameter among sprocket wheel.Using pipe
Mode, convenient for sprocket wheel to be installed on tensioning frame.
Compared with prior art, the beneficial effects of the invention are as follows：1, the stability of chain drive is improved, machinery event is reduced
Barrier；2, chain tension is easy to operate, and operability is strong；3, simple in structure, chain is compressed using sprocket wheel, ensure that chain drive
When each chain link be in the same plane；Chain can be both compressed from inside to outside when 4, running, and can also compress chain from outside to inside.
Description of the drawings
Fig. 1 is the structural schematic diagram of chain stretching device of the present invention.
The exploded perspective view of Fig. 2 Fig. 1 chain stretching devices.
In figure：10- bracket components, 11- tensioning frames, the first kidney slots of 111-, 112- openings, 113- openings, 114- first
Through-hole, 12- backstands, the second kidney slots of 121-, the second through-holes of 122-, 20- sprocket wheels, 30- fasteners, 31- bolts, 32- nuts,
33- cushions, 34- plain cushions, 40- sprocket wheel central siphons, 41- large diameter portions, 42- paths part.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, to the technical solution in the embodiment of the present invention carry out it is clear,
It is fully described by, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of chain stretching device of the invention, including bracket component 10, sprocket wheel 20, fastener
30 and sprocket wheel central siphon 40, the sprocket wheel 20 be set on sprocket wheel central siphon 40, fastener 30 passes through sprocket wheel central siphon 40, by 20, sprocket wheel
Support is in bracket component 10.
Specifically, bracket component 10 includes tensioning frame 11 and backstand 12, in one embodiment, outside support component 10
Shape is rectangular box shape, is tightened together by screw bolt and nut by tensioning frame 11 and backstand 12.Have on tensioning frame 11
There are four face, it is provided with the opening (112,113) passed in and out for chain on the first opposite face and third face, is set on the second face
It is equipped with the first kidney slot 111, multiple first through hole 114 are provided on fourth face, in one embodiment, there are 6 first to lead to
Hole 114 is respectively classified into two row, 3 first through hole 114 of each column.It of courses, first through hole 114 can also be 6 or more, depend on
Depending on the fixed effect that those skilled in the art are pursued in design；The second kidney slot 121 and more is provided on backstand 12
A second through-hole 122, the second kidney slot 121 is similar to the size and shape of the first kidney slot 111, the first kidney slot 111 and
Two kidney slots 121 pass through for accommodating fastener 30 and fastener are allowed to be fastened on bracket component 10, the first through hole 114
It is used to coordinate by bolt and nut with the second through-hole 122,11 fourth face of tensioning frame and backstand 12 is secured together.
The shape of bracket component 10 can also be triangle or the polygon more than quadrangle, and no matter what it has
Shape, it all has such structure：For the space that sprocket wheel 20 is put into, and for the opening (112,113) of chain disengaging.
In one embodiment, fastener 30 includes bolt 31 and nut 32.Fastener 30 can also be that other are easy to tear open
The fastening structure unloaded, such as bolt and threaded sleeve connection structure.During chain drive, vibrations are will produce, at this time bolt
It will produce loosening between 31 and nut 32, can thus influence the transmission efficiency of sprocket wheel chain, in order to prevent this loosening, bolt
Rounded cap shape is made in 31 ends, and square shape is made in the root of bolt 31, and the length of side of square just cans be compared to the second through-hole 122
Width wants short, and square catercorner length is longer than the width of the second through-hole 122, and such bolt root can be limited to second
Without rotating in through-hole 122.Meanwhile it being additionally provided with cushion 33 and plain cushion 34 in the inside of nut 5, the setting of cushion 33 exists
Between nut 32 and plain cushion 34.
In one embodiment, sprocket wheel central siphon 40 between step including two with managing, and so-called in the present invention manages, just
It is the casing being spaced apart, manages and have between each in the present embodiment in the parts both sides that some needs positions for setting up separately
There are two the parts of different outer dias, are called large diameter portion 41 and path part 42 respectively, and the path part 42 of pipe is inserted into
In mounting hole among sprocket wheel 20, it is each between the diameter of large diameter portion 41 of pipe be more than the mounting hole among sprocket wheel 20, such chain
Wheel 20 is positioned to heading on fastener 30 by pipe between the right and left, unless between adjustment pipe position, otherwise the sprocket wheel can only
It circumferentially rotates, and cannot move axially.On 20 both sides of sprocket wheel between by the way of pipe, convenient for sprocket wheel 20 is installed to
On bracket component 10, position of the adjustment sprocket wheel 20 on bracket component 10 is also allowed for, to realize that the sprocket wheel 20 and chain are coplanar.
A kind of application method of chain stretching device of the present invention：Chain is first penetrated into branch by opening (112,113)
Then this chain stretching device is fixed in the side wall using the equipment of sprocket chain device by the centre of frame component 10, adjustment
Position of the fastener 30 on kidney slot (111,121), to determine the height and position of sprocket wheel 20, and using between the adjustment of flat shim 34
Position of the pipe on fastener 30, so that it is determined that the horizontal position of sprocket wheel.The sprocket wheel 20 of chain and the chain stretching device is nibbled
It gets togather, chain in use for some time, just will produce plastic deformation and fluff, and adjust fastener 30 at this time in kidney slot
Position on (111,121), so that it may to realize the tensioning again of chain.
For the ease of installation, the middle section of backstand 12 is recessed inwardly along vertical direction, and the depth being recessed compares spiral shell
The thickness of the bolt head of bolt 31 is big, thus can the bolt head of bolt 31 after mounting will not encounter in the side wall of equipment, protect
Demonstrate,prove the normal operation of equipment.The connection bolt between backstand 12 and tensioning frame 11, bolt head are located at tensioning frame 11 simultaneously
Inside.
After in the side wall that the tensioning apparatus is mounted on equipment, the position of possible sprocket wheel 20 and the plane where chain are not
It is that can thus influence to be driven effect in same plane, so pipe and tensioning frame 11 between being located at first on bolt 31
Between, manage between second and be set with multiple plain cushions 34 between backstand 12, the quantity of the plain cushion 34 is according to actual operation requirements
To determine.In this way by increasing or reducing the quantity of plain cushion 34, to realize the coplanar of sprocket wheel 20 and chain.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of chain stretching device, it is characterised in that：Including bracket component (10), sprocket wheel (20), fastener (30) and sprocket wheel
Central siphon (40), the sprocket wheel (20) are set on sprocket wheel central siphon (40), and fastener (30) passes through sprocket wheel central siphon (40), by sprocket wheel
(20) it is supported in bracket component (10).
2. chain stretching device as described in claim 1, it is characterised in that：The bracket component (10) includes tensioning frame (11)
With backstand (12), tool is provided on the first face and third face and to be passed in and out for chain there are four face on the tensioning frame (11)
It is open (112,113), is provided with the first kidney slot (111) on the second face, multiple first through hole are provided on fourth face
(114)；The second kidney slot (121) and multiple second through-holes (122), first kidney slot are provided on the backstand (12)
(111) it is used for across fastener (30) with the second kidney slot (121), the first through hole (114) and the second through-hole (122) are used for
By the cooperation of bolt and nut, tensioning frame (11) fourth face and backstand (12) are secured together.
3. chain stretching device as claimed in claim 1 or 2, it is characterised in that：The fastener (30) includes bolt (31)
With nut (32).
4. chain stretching device as claimed in claim 3, it is characterised in that：The fastener (30) further includes cushion (33)
With plain cushion (34), the cushion (33) is arranged between nut (32) and plain cushion (34).
5. chain stretching device as claimed in claim 1 or 2, it is characterised in that：The sprocket wheel central siphon (40) includes two tools
Have and manage between step, it is each between the path part (42) of pipe be inserted into the intermediate mounting hole of sprocket wheel (20), it is each between pipe major diameter
Partly the diameter of (41) is more than the intermediate mounting hole internal diameter of sprocket wheel (20).
6. chain stretching device as claimed in claim 3, it is characterised in that：The sprocket wheel central siphon (40), which includes two, has platform
Managed between rank, it is each between the path part (42) of pipe be inserted into the intermediate mounting hole of sprocket wheel (20), it is each between pipe large diameter portion
(41) diameter is more than the intermediate mounting hole internal diameter of sprocket wheel (20).
7. chain stretching device as claimed in claim 4, it is characterised in that：The sprocket wheel central siphon (40), which includes two, has platform
Managed between rank, it is each between the path part (42) of pipe be inserted into the intermediate mounting hole of sprocket wheel (20), it is each between pipe large diameter portion
(41) diameter is more than the intermediate mounting hole internal diameter of sprocket wheel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750252.4A CN108547921A (en) | 2018-07-10 | 2018-07-10 | A kind of chain stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810750252.4A CN108547921A (en) | 2018-07-10 | 2018-07-10 | A kind of chain stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108547921A true CN108547921A (en) | 2018-09-18 |
Family
ID=63492039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810750252.4A Pending CN108547921A (en) | 2018-07-10 | 2018-07-10 | A kind of chain stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108547921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131371A (en) * | 2019-04-17 | 2019-08-16 | 中车石家庄车辆有限公司 | Chain stretching device and grain drier |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672352A (en) * | 2009-09-30 | 2010-03-17 | 东莞宏威数码机械有限公司 | Chain transmission tensioning device |
| CN102295142A (en) * | 2011-06-10 | 2011-12-28 | 无锡杰思物流设备有限公司 | Conveyor chain tension device |
| CN202883910U (en) * | 2012-10-12 | 2013-04-17 | 郑州中联收获机械有限公司 | Chain tensioning device |
| CN202946629U (en) * | 2012-11-30 | 2013-05-22 | 郑州中联收获机械有限公司 | Chain wheel tensioning device |
| CN203568367U (en) * | 2013-11-15 | 2014-04-30 | 厦门大学 | Conveying chain with tensioning function |
| CN103939544A (en) * | 2014-04-28 | 2014-07-23 | 河南中烟工业有限责任公司 | Chain tightener, chain transmission mechanism with same and tobacco cutting device |
| CN104565248A (en) * | 2014-12-22 | 2015-04-29 | 安徽全柴动力股份有限公司 | Belt tightening wheel mechanism |
| CN205226251U (en) * | 2015-11-06 | 2016-05-11 | 重庆小康工业集团股份有限公司 | Manual overspeed device tensioner of engine belt pulley |
| CN205824072U (en) * | 2016-07-15 | 2016-12-21 | 北京起重运输机械设计研究院 | A kind of tensioner for sprocket wheel |
| CN205859066U (en) * | 2016-07-29 | 2017-01-04 | 天津七所高科技有限公司 | A kind of double-station synchronous rotary apparatus |
| CN206592498U (en) * | 2017-02-27 | 2017-10-27 | 中钢集团西安重机有限公司 | It is a kind of to be used to adjust the elastic simplex pull rod disk spring type take-up device of chain |
-
2018
- 2018-07-10 CN CN201810750252.4A patent/CN108547921A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672352A (en) * | 2009-09-30 | 2010-03-17 | 东莞宏威数码机械有限公司 | Chain transmission tensioning device |
| CN102295142A (en) * | 2011-06-10 | 2011-12-28 | 无锡杰思物流设备有限公司 | Conveyor chain tension device |
| CN202883910U (en) * | 2012-10-12 | 2013-04-17 | 郑州中联收获机械有限公司 | Chain tensioning device |
| CN202946629U (en) * | 2012-11-30 | 2013-05-22 | 郑州中联收获机械有限公司 | Chain wheel tensioning device |
| CN203568367U (en) * | 2013-11-15 | 2014-04-30 | 厦门大学 | Conveying chain with tensioning function |
| CN103939544A (en) * | 2014-04-28 | 2014-07-23 | 河南中烟工业有限责任公司 | Chain tightener, chain transmission mechanism with same and tobacco cutting device |
| CN104565248A (en) * | 2014-12-22 | 2015-04-29 | 安徽全柴动力股份有限公司 | Belt tightening wheel mechanism |
| CN205226251U (en) * | 2015-11-06 | 2016-05-11 | 重庆小康工业集团股份有限公司 | Manual overspeed device tensioner of engine belt pulley |
| CN205824072U (en) * | 2016-07-15 | 2016-12-21 | 北京起重运输机械设计研究院 | A kind of tensioner for sprocket wheel |
| CN205859066U (en) * | 2016-07-29 | 2017-01-04 | 天津七所高科技有限公司 | A kind of double-station synchronous rotary apparatus |
| CN206592498U (en) * | 2017-02-27 | 2017-10-27 | 中钢集团西安重机有限公司 | It is a kind of to be used to adjust the elastic simplex pull rod disk spring type take-up device of chain |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131371A (en) * | 2019-04-17 | 2019-08-16 | 中车石家庄车辆有限公司 | Chain stretching device and grain drier |
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