CN206600429U - Chain stretching device and sprocket drive system - Google Patents
Chain stretching device and sprocket drive system Download PDFInfo
- Publication number
- CN206600429U CN206600429U CN201720232123.7U CN201720232123U CN206600429U CN 206600429 U CN206600429 U CN 206600429U CN 201720232123 U CN201720232123 U CN 201720232123U CN 206600429 U CN206600429 U CN 206600429U
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- leading screw
- stretching device
- sliding part
- chain stretching
- nut
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Abstract
The utility model discloses a kind of chain stretching device and sprocket drive system, wherein, the chain stretching device includes：Body；Sliding part, the sliding part is slidably mounted to the body and for installing sprocket wheel；It is tensioned adjusting part, the tensioning adjusting part includes leading screw, the two ends of the leading screw by corresponding first bearing seat by being connected to the body respectively, transfer arm is set with the leading screw and traveling nut is equipped with by thread bush, the transfer arm is fixedly attached to the sliding part, and it is provided with spring between the transfer arm and the traveling nut, the traveling nut is connected with rotation preventing device, and the rotation preventing device is fixed to the body so that the nut is only capable of moving along the length direction of the leading screw when leading screw rotates.The chain stretching device has automatic compensation function, can save operator's regular hour and workload, and tensioning efficiency is very high.
Description
Technical field
The utility model is related to tensioning apparatus, in particular it relates to a kind of chain stretching device and sprocket drive system.
Background technology
Mainly there are sprocket wheel and the big part of chain two in sprocket drive system, in order to ensure that chain reaches required tensioning journey
Chain stretching device is typically also provided with degree, sprocket drive system, chain stretching device of the prior art does not possess generally
Automatic compensation function, that is to say, that as long as chain slightly relaxes, it is necessary to debug chain stretching device, so occupies operation
Person's regular hour and workload, are unfavorable for realizing that industrial automation is also unfavorable for improving production efficiency, therefore, how to design and grind
More efficient chain stretching device is sent, is the topic merited special attention in sprocket drive system.
Utility model content
A purpose of the present utility model is to provide a kind of chain stretching device with automatic compensation function, the chain
Tight device can save operator's regular hour and workload, and tensioning efficiency is very high.
Another purpose of the present utility model is to provide a kind of sprocket drive system, and the sprocket drive system uses this practicality
The chain stretching device of new offer.
To achieve the above object, the utility model provides a kind of chain stretching device, wherein, the chain stretching device bag
Include：Body；Sliding part, the sliding part is slidably mounted to the body and for installing sprocket wheel；It is tensioned adjusting part, institute
Stating tensioning adjusting part includes leading screw, and the two ends of the leading screw by corresponding first bearing seat by being connected to the machine respectively
Transfer arm is set with body, the leading screw and traveling nut is equipped with by thread bush, the transfer arm is fixedly attached to the cunning
Spring is provided between moving part, and the transfer arm and the traveling nut, the traveling nut is connected with rotation preventing device, described anti-
Turn part and be fixed to the body so that the nut is only capable of moving along the length direction of the leading screw when leading screw rotates.
Preferably, coulisse is installed with the body, the sliding part is the chute installed in the coulisse
In slide plate, the sprocket shaft of the sprocket wheel is attached to the sliding part and through the sliding part by second bearing seat.
Preferably, the traveling nut is provided with screwed hole in the middle part of the traveling nut and positioned at the nut side
The spacing hole in portion, the rotation preventing device is the rod member through the spacing hole.
Preferably, connecting plate is provided with the body, one end of the leading screw is connected by corresponding first bearing seat
To the connecting plate, one end of the rod member is fixed to the connecting plate.
Preferably, an end of the leading screw is formed as polygonal head, and the polygonal head is exposed to described the
Outside one bearing block.
In addition, the utility model also provides a kind of sprocket drive system, wherein, the sprocket drive system include sprocket wheel,
Chain and above-mentioned chain stretching device on the sprocket wheel, the sprocket wheel are attached to the sliding part.
The utility model has the following advantages that part relative to prior art：
In the chain stretching device that the utility model is provided, it can be rotated by adjusting the leading screw, so that nut is along institute
The length direction movement of leading screw is stated, so when nut is moved close to transfer arm, transfer arm motion can be promoted with extrusion spring, is entered
And drive sliding part to move, when sprocket wheel being installed on sliding part, it can be moved with movable sprocket, so as to realize the tensioning of chain or put
Pine, due to being provided with spring between transfer arm and the traveling nut, when chain has it is slight loose when, the elastic force of spring can be with
Transfer arm motion is promoted, so as to move sprocket wheel again（Sprocket wheel can be made toward the direction movement for causing chain tension）, it is automatic to mend
The tensile force to chain has been repaid, it is therefore seen that, the chain stretching device can save operator's regular hour and workload,
Tight efficiency is very high.
Other features and advantages of the utility model will be described in detail in subsequent embodiment part.
Brief description of the drawings
, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the partial schematic diagram for the sprocket drive system that the utility model is provided.
Fig. 2 is the schematic perspective view for the chain stretching device that the utility model is provided.
Description of reference numerals
The sliding part of 1 body 2
The leading screw of 3 sprocket wheel 4
The transfer arm of 5 first bearing seat 6
The spring of 7 traveling nut 8
The rod member of 9 coulisse 10
The connecting plate of 11 second bearing seat 12
The sprocket shaft of 13 chain 31
41 polygonal heads.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.It should be appreciated that herein
Described embodiment is merely to illustrate and explained the utility model, is not limited to the utility model.
Referring to Fig. 1 and Fig. 2, according to one side of the present utility model, the utility model provides a kind of chain stretching device,
Wherein, chain stretching device includes：Body 1；Sliding part 2；Sliding part 2 is slidably mounted to body 1 and for installing sprocket wheel
3, adjusting part is tensioned, tensioning adjusting part includes leading screw 4, and the two ends of leading screw 4 by passing through corresponding first bearing seat 5 respectively
It is connected to body 1（That is one end of leading screw 4 is connected by a first bearing seat 5（It can be directly connected to or by other
Part is indirectly connected with）To body 1, although complete display in figure, but the other end of leading screw 4 can by another first
Bearing block 5 is connected（It can be directly connected to or be indirectly connected with by miscellaneous part）To body）, be set with leading screw 4 transfer arm 6 and
Traveling nut 7 is equipped with by thread bush（It is preferred that rhombus nut）, transfer arm 6 is fixedly connected（For example weld）To sliding part 2, and move
Spring 8 is provided between swing arm 6 and traveling nut 7, traveling nut 7 connects the rotation preventing device that restricted traveling nut 7 is rotated, anti-rotation
Part is fixed to body 1 so that nut is only capable of moving along the length direction of leading screw 4 when leading screw 4 rotates.
As described above, in the chain stretching device that the utility model is provided, can be rotated by adjusting screw 4, so that row
Enter length direction of the nut 7 along leading screw 4 to move, so when traveling nut 7 is moved close to transfer arm 6（For example leading screw 4 is set to exist
During along rotate counterclockwise, traveling nut 7 is moved close to transfer arm 6）, transfer arm motion can be promoted with extrusion spring, and then drive
Sliding part 2 is moved, when being provided with sprocket wheel 3 on sliding part 2, can be moved with movable sprocket 3, so as to realize the tensioning of chain 13 or put
Pine（Embodiment of the present utility model is that, when traveling nut 7 is moved close to transfer arm 6, sprocket wheel 3 is toward so that 13, chain
Tight direction motion）, due to being provided with spring 8 between transfer arm 6 and traveling nut 7, when chain 13 has it is slight loose when, spring
Elastic force transfer arm can be promoted to move, so as to move again sprocket wheel 3（Sprocket wheel 3 can be made toward so that what chain 13 was tensioned
Direction is moved, and such as sprocket wheel 3 then can tension chain S toward the first direction S movements in Fig. 1）, to chain 13 is compensate for automatically
Clamp force, it is therefore seen that, the chain stretching device can save operator's regular hour and workload, and tensioning efficiency is very high.
As can be seen from Figure 2 chain stretching device in couples and is symmetrically mounted at the two ends of sprocket shaft 31 of sprocket wheel 3, certainly, this
Utility model is not limited to this, in fact, a chain stretching device has been able to play a part of tension chain 13, in couples
Chain stretching device is set to keep more preferable stationarity.
According to embodiment of the present utility model, it is fixedly mounted on body 1（For example it is bolted installation）Have
Two coulisses 9, sliding part 2 is the slide plate in the chute of coulisse 9, specifically, and the two ends difference of slide plate is slidably
Ground is caught in the chute of corresponding coulisse 9, and the sprocket shaft 31 of sprocket wheel 3 is attached to sliding part 2 by second bearing seat 11 and passed through
Sliding part 2 is worn, sprocket shaft 31 also extends through body 1.
According to embodiment of the present utility model, traveling nut 7 is provided with the screwed hole positioned at the middle part of traveling nut 7
With the spacing hole positioned at nut sidepiece, rotation preventing device is the rod member 10 through spacing hole, specifically, the quantity and rod member 10 of spacing hole
Quantity can be respectively 2, two spacing holes can be symmetrical arranged on screwed hole.
In addition, can be provided with connecting plate 12 on body 1, one end of leading screw 4 is connected to by corresponding first bearing seat 5
Connecting plate 12, one end of rod member 10 is fixed to connecting plate 12, although do not show, and one end of leading screw 4 can also pass through corresponding
One bearing block 5 is connected to other attaching plate elements, and the other attaching plate elements can also be connected to body 1.
In addition, an end of leading screw 4 is formed as polygonal head 41（For example hex-shaped head 41, also corresponds to hexagonal
The form of nut）, polygonal head 41 is easy to operator to use nut spanner turn leading screw outside the first bearing seat 5
4。
Referring also to Fig. 1, according to other side of the present utility model, a kind of sprocket drive system is also provided, wherein, the chain
Sprocket wheel 3, chain 13 and above-mentioned chain stretching device on sprocket wheel 3 can be included by taking turns transmission system, and sprocket wheel 3 is attached to
Sliding part 2.
Obviously, above-mentioned embodiment is only intended to clearly illustrate example, and the not restriction to embodiment.
For those of ordinary skill in the field, other various forms of changes can also be made on the basis of the above description
Or change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out
Or among variation is still in the protection domain of the utility model creation.
Claims (6)
1. a kind of chain stretching device, it is characterised in that the chain stretching device includes：
Body（1）；
Sliding part（2）, the sliding part（2）It is slidably mounted to the body（1）And for installing sprocket wheel（3）；
Adjusting part is tensioned, the tensioning adjusting part includes leading screw（4）, the leading screw（4）Two ends pass through respectively by right
The first bearing seat answered（5）It is connected to the body（1）, the leading screw（4）On be set with transfer arm（6）And pass through thread set
There is traveling nut（7）, the transfer arm（6）It is fixedly attached to the sliding part（2）, and the transfer arm（6）Advanced with described
Nut（7）Between be provided with spring（8）, the traveling nut（7）Rotation preventing device is connected with, the rotation preventing device is fixed to the body
（1）So that the leading screw（4）The nut is only capable of along the leading screw during rotation（4）Length direction movement.
2. chain stretching device according to claim 1, it is characterised in that the body（1）On be installed with chute
Plate（9）, the sliding part（2）For installed in the coulisse（9）Chute in slide plate, the sprocket wheel（3）Sprocket shaft
（31）Pass through second bearing seat（11）It is attached to the sliding part（2）And through the sliding part（2）.
3. chain stretching device according to claim 1, it is characterised in that the traveling nut（7）It is provided with positioned at institute
State traveling nut（7）The screwed hole at middle part and the spacing hole positioned at the nut sidepiece, the rotation preventing device are through described spacing
The rod member in hole（10）.
4. chain stretching device according to claim 3, it is characterised in that the body（1）On be provided with connecting plate
（12）, the leading screw（4）One end pass through corresponding first bearing seat（5）It is connected to the connecting plate（12）, the rod member
（10）One end be fixed to the connecting plate（12）.
5. chain stretching device according to claim 3, it is characterised in that the leading screw（4）An end be formed as
Polygonal head（41）, the polygonal head（41）Exposed to the first bearing seat（5）It is outside.
6. a kind of sprocket drive system, it is characterised in that the sprocket drive system includes sprocket wheel（3）, installed in the sprocket wheel
（3）On chain and chain stretching device as claimed in any of claims 1 to 5, the sprocket wheel（3）It is attached to
The sliding part（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232123.7U CN206600429U (en) | 2017-03-10 | 2017-03-10 | Chain stretching device and sprocket drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720232123.7U CN206600429U (en) | 2017-03-10 | 2017-03-10 | Chain stretching device and sprocket drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206600429U true CN206600429U (en) | 2017-10-31 |
Family
ID=60147477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720232123.7U Active CN206600429U (en) | 2017-03-10 | 2017-03-10 | Chain stretching device and sprocket drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206600429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542042A (en) * | 2019-09-03 | 2019-12-06 | 广东潮鑫建设工程有限公司 | Urban road lighting system |
-
2017
- 2017-03-10 CN CN201720232123.7U patent/CN206600429U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542042A (en) * | 2019-09-03 | 2019-12-06 | 广东潮鑫建设工程有限公司 | Urban road lighting system |
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