CN208719278U - Pinion and-rack chain tightening device - Google Patents
Pinion and-rack chain tightening device Download PDFInfo
- Publication number
- CN208719278U CN208719278U CN201821409093.3U CN201821409093U CN208719278U CN 208719278 U CN208719278 U CN 208719278U CN 201821409093 U CN201821409093 U CN 201821409093U CN 208719278 U CN208719278 U CN 208719278U
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- CN
- China
- Prior art keywords
- wheel shaft
- sliding slot
- support base
- rack
- pinion
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- 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.)
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Abstract
The utility model discloses a kind of pinion and-rack chain tightening devices, including support base, the two sides of support base are respectively arranged with horizontal sliding slot, wheel shaft is installed in two sliding slots, it is transition fit between wheel shaft and sliding slot, sprocket wheel is rotatably equipped on wheel shaft, the both ends of wheel shaft are stretched out outside sliding slot is rotatably equipped with adjustment gear respectively, the two sides of support base are fixedly installed with the adjusting gear rack with adjustment gear transmission cooperation respectively, are provided with adjusting crank on the outside of adjustment gear；The limiting device for limiting wheel shaft position is also connected on support base；Rotation adjusts crank, and adjustment gear can be rotated around wheel shaft, be moved along adjusting gear rack, while wheel shaft will drive sprocket wheel and move along sliding slot, realizes the tensioning of the chain；The utility model structure is simple, convenient disassembly, chain tension is conveniently adjusted, and can be realization fine tuning by rack-and-pinion regulative mode, so that the utility model has wider application range.
Description
Technical field
The utility model relates to sprocket wheel transmission technical field more particularly to a kind of chain tightening devices.
Background technique
Sprocket wheel transmission is mechanically operated one kind, and since it does not have Elastic Sliding and skids, having can keep quasi-
The advantages of true average ratios, is widely used in multiple industries, but sprocket transmission device is after running for a period of time, can not
Avoid the phenomenon that will appear chain wear so that chain link is elongated；If slack list chain cannot be tensioned in time, will cause to jump
Tooth or de- chain, cause sprocket transmission device failure to increase, influence production efficiency；It removes, uses in general, needing to shut down when adjustment chain
The tools such as hydraulic jack or chain block carry out auxiliary adjustment, and Adjustment precision is not high, can not achieve fine adjustment function, more
For it is important that the dismounting more complex difficulty of adjustment process, wastes time, causes working efficiency lower.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of install convenient, it is conveniently adjusted the gear of chain tension
Rack-and-pinion chain tightening device.
In order to solve the above technical problems, the technical solution of the utility model is: pinion and-rack chain tightening device, including
Support base, the two sides of the support base are respectively arranged with horizontal sliding slot, are equipped with wheel shaft in two sliding slots, the wheel shaft with
It is transition fit between the sliding slot, sprocket wheel is rotatably equipped on the wheel shaft, the both ends of the wheel shaft is stretched out outside the sliding slot
It is rotatably equipped with adjustment gear respectively, the two sides of the support base are fixedly installed with and adjustment gear transmission cooperation respectively
Adjusting gear rack is provided with adjusting crank on the outside of the adjustment gear；It is also connected on the support base for limiting the wheel
The limiting device of shaft position.
The support base includes being mounted on the rack support base as a preferred technical solution, and the support base includes
The support base being removably mounted in rack, the two sides of the support base are separately installed with two support-sides being oppositely arranged
Plate is provided with the sliding slot in the support side plate, is also threaded with and is stretched in the sliding slot in the support side plate
The limiting device.
The limiting device is the adjusting bolt being connected in the support side plate as a preferred technical solution, described
The thread head for adjusting bolt is stretched in the sliding slot and is resisted against on the wheel shaft.
Locking nut is installed on the adjusting bolt as a preferred technical solution,.
By adopting the above-described technical solution, pinion and-rack chain tightening device, including support base, the support base
Two sides are respectively arranged with horizontal sliding slot, and wheel shaft is equipped in two sliding slots, are transition between the wheel shaft and the sliding slot
Cooperate, sprocket wheel is rotatably equipped on the wheel shaft, the both ends of the wheel shaft are stretched out outside the sliding slot is rotatably equipped with adjusting respectively
Gear, the two sides of the support base are fixedly installed with the adjusting gear rack with adjustment gear transmission cooperation, the adjusting respectively
Adjusting crank is provided on the outside of gear；The limiting device for limiting the wheel shaft position is also connected on the support base；
The beneficial effects of the utility model are: adjusting crank by rotation manually, adjusting crank will drive adjustment gear rotation, due to adjusting
The transmission matching relationship between gear and adjusting gear rack is saved, and since adjusting gear rack is to be fixedly connected, is shaken when rotation is adjusted
When, adjustment gear can be rotated around wheel shaft, while be subjected to displacement variation along the direction of adjusting gear rack, when adjustment gear edge
Adjusting gear rack it is mobile when, the frictional force between wheel shaft and sliding slot can be overcome, wheel shaft will drive sprocket wheel and move along sliding slot, to increase
Add the distance between two sprocket wheels, to realize the tensioning of the chain；When needing to reduce the distance between two sprocket wheels or allow
When the wheel shaft sets back, direction rotation adjusts crank, and adjustment gear can be moved backward with wheel shaft along adjustment gear, complete
At adjustment process；The utility model structure is simple, convenient disassembly, is conveniently adjusted chain tension, and adjust by rack-and-pinion
Mode can be realization fine tuning, so that the utility model has wider application range.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the structural schematic diagram after the utility model embodiment installation chain；
Fig. 3 is that the utility model embodiment omits the structural schematic diagram after adjustment gear；
Fig. 4 is the front view of Fig. 3；
In figure: 1- sliding slot；2- wheel shaft；3- sprocket wheel；4- adjustment gear；5- adjusting gear rack；6- adjusts crank；7- supports bottom
Seat；8- support side plate；9- chain；10- adjusts bolt；11- locking nut.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, pinion and-rack chain tightening device, including support base, the support base
Two sides are respectively arranged with horizontal sliding slot 1, and wheel shaft 2 is equipped in two sliding slots 1, is between the wheel shaft 2 and the sliding slot 1
Transition fit so that the relatively described sliding slot 1 of the wheel shaft 2 can be with registration, while can also move in the sliding slot 1,
Realize the positioning connection for being readily disassembled and assembling of the wheel shaft 2；Sprocket wheel 3, the wheel shaft are rotatably equipped on the wheel shaft 2
2 both ends are stretched out outside the sliding slot 1 is rotatably equipped with adjustment gear 4 respectively, and the two sides of the support base are fixedly installed with respectively
With the adjusting gear rack 5 of the adjustment gear 4 transmission cooperation, the outside of the adjustment gear 4, which is provided with, adjusts crank 6；The branch
The limiting device for limiting 2 position of wheel shaft is also connected on support seat.
As shown in Figure 1, the support base includes the support base 7 being removably mounted in rack, the support base 7 can
Disassembly be mounted on the rack or other corresponding devices on so that the present embodiment have be easy to dismount, can be applied to it is more
The characteristics of a varying environment, the two sides of the support base 7 are separately installed with two support side plates 8 being oppositely arranged, the support
It is provided with the sliding slot 1 on side plate 8, the limit stretched in the sliding slot 1 is also threaded in the support side plate 8
Device, in the present embodiment, the sliding slot 1 are long slot hole shape, and certain sliding slot 1 can also be with rectangle.
As shown in Fig. 2, chain 9, when rotating on the sprocket wheel 3, the chain 9 can make 3 applied force of sprocket wheel
Obtaining the sprocket wheel 3 has the trend mobile towards another sprocket wheel engaged therewith, and once the wheel shaft 2 is in the sliding slot 1
Interior movement can make 9 regulating effect of chain of the present embodiment reduce, while be easily destroyed the adjustment gear 4 and the adjusting
The intensity of the cooperation gear teeth between rack gear 5, causes the damage of the present embodiment, although being between the wheel shaft 2 and the sliding slot 1
Crossing cooperation, the relatively described sliding slot 1 of the wheel shaft 2 is to be fixedly connected, but in order to preferably guarantee the using effect of the present embodiment,
It prevents the wheel shaft 2 from moving in the sliding slot 1, therefore, is also equipped on the wheel shaft 2 and is displaced for limiting the wheel shaft 2
Limiting device, the limiting device is the adjusting bolt 10 being connected in the support side plate 8, it is described adjust bolt 10 spiral shell
Line head is stretched in the sliding slot 1 and is resisted against on the wheel shaft 2, and the setting for adjusting bolt 10 is for further limiting institute
The movement and rotation of wheel shaft 2 are stated, to increase the frictional force that the wheel shaft 2 moves horizontally in the sliding slot 1, to prevent in institute
When stating the work of sprocket wheel 3, change in location occurs for the relatively described sliding slot 1 of the wheel shaft 2, guarantees the stability that chain 9 is driven.
To avoid the arbitrarily rotation of adjusting bolt 10, therefore locking nut 11 is installed on the adjusting bolt 10,
The locking nut 11 is for further fixing the wheel shaft 2, after 10 position of adjusting bolt is adjusted, by the lock
Tight nut 11 is locked, and prevents the wheel shaft 2 from moving in the sliding slot 1, guarantees the stability that chain 9 is driven.
The present embodiment realizes the tensioning of chain 9, tool by adjusting position of the sprocket wheel 3 relative to another sprocket wheel
The working principle of body is: adjusting crank 6 by rotating manually, adjusting crank 6 will drive the rotation of adjustment gear 4, due to adjusting tooth
Transmission matching relationship between wheel 4 and adjusting gear rack 5, and since adjusting gear rack 5 is to be fixedly connected, when rotation adjusts crank
When 6, adjustment gear 4 can be rotated around wheel shaft 2, while be subjected to displacement variation along the direction of adjusting gear rack 5, work as adjustment gear
4 along adjusting gear rack 5 when moving, and can overcome the frictional force between wheel shaft 2 and sliding slot 1, wheel shaft 2 will drive sprocket wheel 3 along sliding slot 1
Mobile, to increase the distance between two sprocket wheels 3, to realize the tensioning of chain 9, after the completion of adjusting, adjustment adjusts bolt
10, so that the top for adjusting bolt 10 is resisted against on wheel shaft 2, and locking nut 11 is locked, for further fixed wheel shaft
2, prevent wheel shaft 2 from continuing that change in location occurs；When needing to reduce the distance between two sprocket wheels 3 or make the wheel shaft 2 extensive
When restoring position, release locking nut 11, adjustment adjust bolt 10 first, so that adjusting between bolt 10 and wheel shaft 2, there are enough
Then the gap value that sprocket wheel 3 is adjusted rotates backward and adjusts crank 6, adjustment gear 4 can be reversed along adjustment gear 4 with wheel shaft 2
It is mobile, adjustment process is completed, in adjustment process, the adjusting crank 6 of 2 two sides of wheel shaft will be adjusted simultaneously or alternately be adjusted, to the greatest extent
Amount guarantees that angular deflection does not occur for sprocket wheel 3 adjusted, can also unilateral fine tuning correction if angular deflection once occurs；This
Utility model structure is simple, convenient disassembly, is conveniently adjusted the tensioning of chain 9, and can be realization by rack-and-pinion regulative mode
Fine tuning, so that the utility model has wider application range.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. pinion and-rack chain tightening device, including support base, it is characterised in that: the two sides of the support base are respectively arranged with
Horizontal sliding slot is equipped with wheel shaft in two sliding slots, is transition fit between the wheel shaft and the sliding slot, on the wheel shaft
It is rotatably equipped with sprocket wheel, the both ends of the wheel shaft are stretched out outside the sliding slot is rotatably equipped with adjustment gear, the support base respectively
Two sides be fixedly installed with the adjusting gear rack with adjustment gear transmission cooperation respectively, be provided on the outside of the adjustment gear
Adjust crank；The limiting device for limiting the wheel shaft position is also connected on the support base.
2. pinion and-rack chain tightening device as described in claim 1, it is characterised in that: the support base includes detachable
Rack-mounted support base, the two sides of the support base are separately installed with two support side plates being oppositely arranged, described
It is provided with the sliding slot in support side plate, the limit stretched in the sliding slot is also threaded in the support side plate
Device.
3. pinion and-rack chain tightening device as claimed in claim 2, it is characterised in that: the limiting device is to be connected to
Adjusting bolt in the support side plate, the thread head for adjusting bolt stretch in the sliding slot and are resisted against the wheel shaft
On.
4. pinion and-rack chain tightening device as claimed in claim 3, it is characterised in that: be equipped on the adjusting bolt
Locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409093.3U CN208719278U (en) | 2018-08-29 | 2018-08-29 | Pinion and-rack chain tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409093.3U CN208719278U (en) | 2018-08-29 | 2018-08-29 | Pinion and-rack chain tightening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208719278U true CN208719278U (en) | 2019-04-09 |
Family
ID=65980136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821409093.3U Expired - Fee Related CN208719278U (en) | 2018-08-29 | 2018-08-29 | Pinion and-rack chain tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208719278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566634A (en) * | 2019-09-12 | 2019-12-13 | 江汉大学 | make things convenient for gear box structure of dismouting |
-
2018
- 2018-08-29 CN CN201821409093.3U patent/CN208719278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566634A (en) * | 2019-09-12 | 2019-12-13 | 江汉大学 | make things convenient for gear box structure of dismouting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20190829 |