CN210883943U - Automatic tensioning device for driving chain of mud scraper - Google Patents
Automatic tensioning device for driving chain of mud scraper Download PDFInfo
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- CN210883943U CN210883943U CN201921931372.0U CN201921931372U CN210883943U CN 210883943 U CN210883943 U CN 210883943U CN 201921931372 U CN201921931372 U CN 201921931372U CN 210883943 U CN210883943 U CN 210883943U
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- mud scraper
- drive chain
- spring
- support
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Abstract
The utility model discloses an automatic tensioning device of a mud scraper drive chain, wherein the mud scraper is provided with a drive sprocket, the drive sprocket is wound with the drive chain, the automatic tensioning device comprises a bracket, the bracket is connected with an inclined strut through a first pin shaft, the front end of the inclined strut is connected with a tensioning roller through a second pin shaft, the tensioning roller is attached to the outer side surface of the drive chain, and the inclined strut is also connected with a spring tensioning mechanism; the spring tensioning mechanism comprises a base, wherein the top of the base is connected with a bottom plate, the upper surface of the bottom plate is connected with a support, a connecting plate horizontally arranged is arranged in the support, the lower surface of the connecting plate is connected with an adjusting bolt, the lower end of the adjusting bolt is connected and fixed with the bottom plate, the upper surface of the connecting plate is connected with an extension spring, and the upper end of the extension spring penetrates through the top of the support and is connected with an inclined stay bar. The utility model discloses alleviate working strength, reduce cost of maintenance, improve automatic operation ability, solve the mud scraper drive chain and relax the influence that causes operation safety.
Description
Technical Field
The utility model relates to a chain overspeed device tensioner, more specifically say, relate to an automatic overspeed device tensioner of mud scraper drive chain.
Background
The mud scraper that current sewage treatment plant adopted is nonmetal chain formula mud scraper, generally all arranges in grit chamber, primary sedimentation pond, two heavy ponds, and the mud scraper is in incessant running state always, in case the drive chain on the mud scraper appears slackening, must influence the normal operating of equipment. As shown in fig. 1, all chain tensioners on a mud scraper are designed in a regular tensioning mode, which is not favorable for normal operation, when a driving chain is loosened, the equipment stops operating, then a maintenance worker loosens two adjusting bolts 1 by using a wrench to adjust the two adjusting bolts to a proper tensioning force, and then the two adjusting bolts 1 are locked by using the wrench, so that the regular tensioning is realized.
The tensioning mode has higher technical requirements on maintenance personnel, particularly the tensioning force is adjusted by the experience of the maintenance personnel, the workload is large, the labor intensity is high, time and labor are wasted, the maintenance cost is high, if the tensioning mode needs to be adjusted once, the equipment must be stopped, but the stop of the equipment can cause the overflow of sewage in the corresponding service area.
In conclusion, the conventional periodic tensioning method is time-consuming, poor in effect and affects operation.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned defect that exists among the prior art, the utility model aims at providing an automatic overspeed device tensioner of mud scraper drive chain alleviates working strength, reduces cost of maintenance, improves automatic operation ability, solves the influence that mud scraper drive chain lax caused operation safety.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an automatic tensioning device for a driving chain of a mud scraper is characterized in that the mud scraper is provided with a driving chain wheel, and the driving chain wheel is wound with the driving chain;
the device comprises a bracket, wherein the bracket is connected with an inclined strut through a first pin shaft, the front end of the inclined strut is connected with a tensioning roller through a second pin shaft, the tensioning roller is attached to the outer side surface of a driving chain, and the inclined strut is also connected with a spring tensioning mechanism;
the spring tensioning mechanism comprises a base, wherein the top of the base is connected with a bottom plate, the upper surface of the bottom plate is connected with a support, a connecting plate horizontally arranged is arranged in the support, the lower surface of the connecting plate is connected with an adjusting bolt, the lower end of the adjusting bolt is connected and fixed with the bottom plate, the upper surface of the connecting plate is connected with an extension spring, and the upper end of the extension spring penetrates through the top of the support and is connected with the inclined stay bar.
The device is characterized by further comprising a separation locking rod and a supporting rod, wherein the separation locking rod is connected with the rear end of the inclined supporting rod through a third pin shaft, the lower end of the supporting rod is fixedly connected with the ground on site, and the separation locking rod is located at the upper end portion of the supporting rod.
The upper surface of connecting plate, and all link still to have the spring fixed ring on the diagonal brace for with extension spring's both ends link to each other.
One side surface of the support is provided with a waist-shaped hole which is vertically arranged, and a spring tension scale which is positioned beside the waist-shaped hole.
The side edge of the connecting plate is connected with a guide bolt, the guide bolt is connected with a spring tension pointer, and the spring tension pointer is located in the kidney-shaped hole.
The support and the base are fixed on the site ground through expansion bolts.
The tensioning roller is made of rubber.
In the technical scheme, the utility model provides a pair of automatic tensioning device of mud scraper drive chain just can realize the automatic tensioning function through spring overspeed device tensioner, has improved automatic operational capability, reduces the operation risk simultaneously, has ensured the normal operating of mud scraper. The small-size-improved leather is adopted for the driving chain of the mud scraper according to local conditions, so that the cost can be saved, the influence on production can be reduced to the greatest extent, the manufacturing is simple, the installation is convenient, the maintenance is not needed, and the reliability is high.
Drawings
FIG. 1 is a schematic illustration of a prior art drive chain for periodic tensioning maintenance;
fig. 2 is a schematic structural view of the automatic tensioning device of the present invention;
FIG. 3 is an enlarged schematic view of position A of FIG. 2;
FIG. 4 is a schematic view in the direction B of FIG. 3;
fig. 5 is a schematic top view of the support shown in fig. 3 and taken along direction C.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.
Please refer to fig. 2 to 5, the automatic tensioning device for the driving chain of the mud scraper provided by the present invention has a driving sprocket 2 on the mud scraper, and a driving chain 3 is wound on the driving sprocket 2, which is a part of the prior art and will not be described herein again. Different from the prior art:
preferably, the device comprises a support 4, the support 4 is fixed on the ground on the site through an expansion bolt, an inclined support rod 6 is connected to the support 4 through a first pin shaft 5, a tensioning roller 8 is connected to the front end of the inclined support rod 6 through a second pin shaft 7, the tensioning roller 8 is closely attached to the outer side face of the driving chain 3, a spring tensioning mechanism is further connected to the rear side of the inclined support rod 6, and automatic tensioning can be achieved through the spring tensioning mechanism.
Preferably, the spring tensioning mechanism includes a base 9, the base 9 is fixed on the ground of a site through an expansion bolt 100, the top of the base 9 is connected with a bottom plate 10, the upper surface of the bottom plate 10 is connected with a support 11, the top of the support 11 is provided with a through hole 12, a horizontally arranged connecting plate 13 is arranged in the support 11, the lower surface of the connecting plate 13 is connected with an adjusting bolt 14, the lower end of the adjusting bolt 14 is connected and fixed with the bottom plate 10 through a nut 15, the upper surface of the connecting plate 13 is connected with a tension spring 16, and the upper end of the tension spring 16 is connected with the inclined strut 6 after penetrating through the through hole 12 at the top of the support 11.
Preferably, the device further comprises a disengagement locking rod 17 and a support rod 18, the front end of the disengagement locking rod 17 is connected with the rear end of the diagonal support rod 6 through a third pin shaft 19, the rear end of the disengagement locking rod 17 is a handle, the lower end of the support rod 18 is connected and fixed with the ground on site, and the disengagement locking rod 17 is located at the upper end of the support rod 18.
Preferably, spring fixing rings 20 are further connected to the upper surface of the connecting plate 13 and the inclined strut 6, so as to be connected to two ends of the extension spring 16.
Preferably, a waist-shaped hole 21 is vertically arranged on one side surface of the support 11, and a spring tension graduated scale 22 is arranged beside the waist-shaped hole 21.
Preferably, a guide bolt 23 is connected to a side edge of the connecting plate 13, a spring tension indicator 24 is connected to the guide bolt 23, and the spring tension indicator 24 is located in the kidney-shaped hole 21.
Preferably, the tension roller 8 is made of rubber, so that the surface of the drive chain 3 is not scratched.
When the tension adjusting device works, the nut 15 is rotated to drive the upper height and the lower height of the adjusting bolt 14, so that the tension of the tension spring 16 can be adjusted, and the tension roller 8 can give a certain tension to the drive chain 3 through a lever principle, so that the automatic tension function is realized. The spring tension pointer 24 connected to the connecting plate 13 can drive the spring tension pointer 24 to move up and down in the kidney-shaped hole 21 when the adjusting bolt 14 is adjusted up and down, and the corresponding scale on the spring tension scale 22 is indicated by the spring tension pointer 24, so that the tension can be directly reflected.
When the drive chain 3 is to be replaced, the drive chain 3 can be removed and the replacement operation can be performed by simply connecting the disengagement locking lever 17 to the rear end of the diagonal lever 6 via the third pin 19, then lifting the diagonal lever 6, and placing the disengagement locking lever 17 at the upper end of the support bar 18, at which time the tension roller 8 is separated from the outer side surface of the drive chain 3 (the tension roller 8 and the diagonal lever 6 are indicated by the dotted line in fig. 2).
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a mud scraper drive chain's automatic tensioning device, the last driving sprocket that has of mud scraper, the last drive chain that winds of driving sprocket, its characterized in that:
the device comprises a bracket, wherein the bracket is connected with an inclined strut through a first pin shaft, the front end of the inclined strut is connected with a tensioning roller through a second pin shaft, the tensioning roller is attached to the outer side surface of a driving chain, and the inclined strut is also connected with a spring tensioning mechanism;
the spring tensioning mechanism comprises a base, wherein the top of the base is connected with a bottom plate, the upper surface of the bottom plate is connected with a support, a connecting plate horizontally arranged is arranged in the support, the lower surface of the connecting plate is connected with an adjusting bolt, the lower end of the adjusting bolt is connected and fixed with the bottom plate, the upper surface of the connecting plate is connected with an extension spring, and the upper end of the extension spring penetrates through the top of the support and is connected with the inclined stay bar.
2. The automatic tensioning device of a mud scraper drive chain as claimed in claim 1, wherein: the device is characterized by further comprising a separation locking rod and a supporting rod, wherein the separation locking rod is connected with the rear end of the inclined supporting rod through a third pin shaft, the lower end of the supporting rod is fixedly connected with the ground on site, and the separation locking rod is located at the upper end portion of the supporting rod.
3. The automatic tensioning device of a mud scraper drive chain as claimed in claim 1, wherein: the upper surface of connecting plate, and all link still to have the spring fixed ring on the diagonal brace for with extension spring's both ends link to each other.
4. The automatic tensioning device of a mud scraper drive chain as claimed in claim 3, wherein: one side surface of the support is provided with a waist-shaped hole which is vertically arranged, and a spring tension scale which is positioned beside the waist-shaped hole.
5. The automatic tensioning device of a mud scraper drive chain as claimed in claim 4, wherein: the side edge of the connecting plate is connected with a guide bolt, the guide bolt is connected with a spring tension pointer, and the spring tension pointer is located in the kidney-shaped hole.
6. The automatic tensioning device of a mud scraper drive chain as claimed in claim 1, wherein: the support and the base are fixed on the site ground through expansion bolts.
7. The automatic tensioning device of a mud scraper drive chain as claimed in claim 1, wherein: the tensioning roller is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921931372.0U CN210883943U (en) | 2019-11-07 | 2019-11-07 | Automatic tensioning device for driving chain of mud scraper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921931372.0U CN210883943U (en) | 2019-11-07 | 2019-11-07 | Automatic tensioning device for driving chain of mud scraper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210883943U true CN210883943U (en) | 2020-06-30 |
Family
ID=71338680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921931372.0U Active CN210883943U (en) | 2019-11-07 | 2019-11-07 | Automatic tensioning device for driving chain of mud scraper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210883943U (en) |
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2019
- 2019-11-07 CN CN201921931372.0U patent/CN210883943U/en active Active
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