CN211619047U - Pneumatic tensioning device for conveying chain - Google Patents
Pneumatic tensioning device for conveying chain Download PDFInfo
- Publication number
- CN211619047U CN211619047U CN202020069332.6U CN202020069332U CN211619047U CN 211619047 U CN211619047 U CN 211619047U CN 202020069332 U CN202020069332 U CN 202020069332U CN 211619047 U CN211619047 U CN 211619047U
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- connecting block
- rack
- ejector pin
- ejector rod
- chain
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Abstract
The utility model discloses a pneumatic overspeed device tensioner for conveying chain, including fixing the cylinder on transport rail top, connect the connecting block of cylinder front end and set up the contrary subassembly in the connecting block top, the connecting block is worn into to cylinder telescopic link level, and contact with the sprocket shaft in the connecting block, the sprocket shaft is by lower up wearing into the connecting block perpendicularly, it is including inserting the ejector pin of establishing the connecting block upper surface to end contrary subassembly, and with ejector pin matched with rack, the part that lies in outside the connecting block on the ejector pin is provided with the fender ring, rack fixed mounting is on the roof, the roof is fixed mutually with the cover shell of fixing on transport rail, the cover includes bottom plate and curb plate, the up end of ejector pin sets up the inclined plane that has a down dip along cylinder advancing direction, the inclined plane is contrary with the tooth's. The device has real-time automatic tensioning, reliable and stable characteristics.
Description
Technical Field
The utility model belongs to the technical field of conveyor technique and specifically relates to a pneumatic overspeed device tensioner for conveying chain.
Background
The chain type production line mainly comprises a conveying frame, a chain and a power device, wherein the conveying frame is used as a main body part, the chain is used as a conveying carrier, the power device is used for providing power for equipment operation, and the conveying chain technology is rapidly developed in multiple fields along with the progress of scientific technology and industrial production. Along with the accumulation of production for many years, the conveying chain can produce the tensile volume of different degrees, in addition, when conveying chain load changes, especially when load weight increases, will the conveying chain oppression recessed, can cause the lax of conveying chain or even the fold of chain, influence conveying chain's transport smoothly, probably cause the conveying chain to block, serious problem such as chain stirring is disconnected even, make whole conveying chain shut down, consequently, need design a overspeed device tensioner and solve the tensile and load change on the conveying chain of conveying chain and bring the negative effect for the conveying chain.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the pneumatic tensioning device for the conveying chain is automatically compensated, stable and reliable.
The utility model provides a technical scheme that its technical problem adopted is: pneumatic overspeed device tensioner for conveying chain, including fixing the cylinder on conveying rail top, connect the connecting block at the cylinder front end and set up the contrary subassembly in the connecting block top, the cylinder telescopic link level is worn into the connecting block to with the sprocket shaft contact in the connecting block, the sprocket shaft from bottom to top vertically wear into the connecting block, contrary subassembly including inserting the ejector pin of establishing at the connecting block upper surface to and with ejector pin matched with rack, the part that lies in outside the connecting block on the ejector pin is provided with the fender ring, rack fixed mounting on the roof, the roof fixed with fix the cover shell on conveying rail mutually, the cover shell include bottom plate and curb plate, the up end of ejector pin set up the inclined plane that has a down dip along cylinder advancing direction, the inclined plane is contrary with the tooth's socket that cooperatees of rack.
Preferably, the guide assemblies are symmetrically arranged on two sides of the connecting block.
Furthermore, the guide assembly comprises a support seat fixed on the bottom plate, a guide shaft erected between the support seats at the two ends and a linear bearing arranged on the guide shaft, and the linear bearing is connected with the connecting block.
Furthermore, a spring is arranged between the baffle ring and the upper surface of the connecting block, so that the ejector rod has certain resilience force when the ejector rod is transited from one tooth groove to another tooth groove.
Furthermore, the bottom plate is provided with a through hole for the chain wheel shaft to pass through.
Furthermore, the ejector rod penetrates through the connecting block.
The utility model discloses a pneumatic overspeed device tensioner for conveying chain, its beneficial effect is: the cylinder action promotes the sprocket shaft and then drives the sprocket and take place the displacement, make the chain tensioning with sprocket engaged with, the ejector pin moves forward simultaneously, and realize ending in the cooperation of rack, the device can be used to carry the real-time automatic compensation of chain, through the fine adjustment to the chain, make the chain can keep the tensioning state constantly, structural design is ingenious, in addition, set up the direction subassembly in device both sides, make the connecting block acquire the steady linear motion of high accuracy, the reliable and stable nature of whole device is higher.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the present invention with the cover removed;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic view of the side guide assembly of FIG. 2 with one side removed;
in the figure, 1, a conveying rail, 2, a cylinder, 3, a top plate, 4, a housing, 5, a connecting block, 6, a guide shaft, 7, a supporting seat, 8, a linear bearing, 9, a retaining ring, 10, a push rod, 11, a spring, 12, a rack and 13, a chain wheel shaft are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
The pneumatic tensioning device for the conveying chain shown in fig. 1-4 comprises an air cylinder 2 fixed at the top end of a conveying rail 1, a connecting block 5 connected at the front end of the air cylinder 2, and a non-return component arranged above the connecting block 5, wherein a telescopic rod of the air cylinder horizontally penetrates into the connecting block 5 and is in contact with a chain wheel shaft 13 in the connecting block 5, the chain wheel shaft 13 vertically penetrates into the connecting block 5 from bottom to top, the non-return component comprises an ejector rod 10 inserted on the upper surface of the connecting block 5 and a rack 12 matched with the ejector rod 10, the ejector rod 10 penetrates through the connecting block 5, a blocking ring 9 is arranged on the part of the ejector rod 10 outside the connecting block 5, a spring 11 is arranged between the blocking ring 9 and the upper surface of the connecting block 5, the rack 12 is fixedly arranged on a top plate 3, the top plate 3 is fixed with a housing 4 fixed on the conveying rail 1, the housing, the upper end surface of the mandril 10 is provided with an inclined plane which is declined along the propelling direction of the cylinder 2, and the inclined plane is matched with the tooth grooves of the rack 12 for stopping.
The connecting block 5 bilateral symmetry sets up the direction subassembly, and the direction subassembly is including fixing supporting seat 7 on the bottom plate, erect guiding axle 6 between both ends supporting seat 7 and install linear bearing 8 on guiding axle 6, and linear bearing 8 is connected with connecting block 5.
When the chain takes place to become flexible, 2 actions of cylinder promote sprocket shaft 13 and then drive the sprocket and take place the displacement, make the chain tensioning with sprocket engaged with, ejector pin 10 moves forward simultaneously, and realize ending only under the cooperation of rack 12, the device can be used to carry the real-time automatic compensation of chain, through the fine adjustment to the chain, make the chain can keep the tensioning state constantly, structural design is ingenious, in addition, set up guide assembly in device both sides, make the connecting block acquire the steady linear motion of high accuracy, the reliable and stable nature of whole device is higher.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. A pneumatic tensioning device for a conveying chain is characterized in that: the device comprises an air cylinder (2) fixed at the top end of a conveying rail (1), a connecting block (5) connected to the front end of the air cylinder (2) and a non-return assembly arranged above the connecting block (5), wherein an expansion rod of the air cylinder horizontally penetrates into the connecting block (5) and is in contact with a chain wheel shaft (13) in the connecting block (5), the chain wheel shaft (13) vertically penetrates into the connecting block (5) from bottom to top, the non-return assembly comprises an ejector rod (10) inserted on the upper surface of the connecting block (5) and a rack (12) matched with the ejector rod (10), a baffle ring (9) is arranged on the part of the ejector rod (10) outside the connecting block (5), the rack (12) is fixedly arranged on a top plate (3), the top plate (3) is fixed with a housing (4) fixed on the conveying rail (1), the housing (4) comprises a bottom plate and side plates, the upper end surface of the ejector rod (10) is provided with an inclined plane which is inclined downwards inclined along, the inclined plane is matched with the tooth grooves of the rack (12) for non-return.
2. The pneumatic tensioner for conveyor chains as set forth in claim 1, characterized in that: the two sides of the connecting block (5) are symmetrically provided with guide components.
3. The pneumatic tensioner for conveyor chains as set forth in claim 2, characterized in that: the guide assembly comprises a support seat (7) fixed on the bottom plate, a guide shaft (6) erected between the support seats (7) at two ends and a linear bearing (8) installed on the guide shaft (6), and the linear bearing (8) is connected with the connecting block (5).
4. The pneumatic tensioner for conveyor chains as set forth in claim 1, characterized in that: and a spring (11) is arranged between the baffle ring (9) and the upper surface of the connecting block (5).
5. The pneumatic tensioner for conveyor chains as set forth in claim 1, characterized in that: the bottom plate is provided with a through hole for the chain wheel shaft (13) to pass through.
6. The pneumatic tensioner for conveyor chains as set forth in claim 1, characterized in that: the ejector rod (10) penetrates through the connecting block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069332.6U CN211619047U (en) | 2020-01-13 | 2020-01-13 | Pneumatic tensioning device for conveying chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069332.6U CN211619047U (en) | 2020-01-13 | 2020-01-13 | Pneumatic tensioning device for conveying chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211619047U true CN211619047U (en) | 2020-10-02 |
Family
ID=72637545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020069332.6U Active CN211619047U (en) | 2020-01-13 | 2020-01-13 | Pneumatic tensioning device for conveying chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211619047U (en) |
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2020
- 2020-01-13 CN CN202020069332.6U patent/CN211619047U/en active Active
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