CN212839218U - Adjustable eccentric tensioning device for belt/chain transmission - Google Patents
Adjustable eccentric tensioning device for belt/chain transmission Download PDFInfo
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- CN212839218U CN212839218U CN202021540587.2U CN202021540587U CN212839218U CN 212839218 U CN212839218 U CN 212839218U CN 202021540587 U CN202021540587 U CN 202021540587U CN 212839218 U CN212839218 U CN 212839218U
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Abstract
An adjustable eccentric tensioner for a belt/chain drive comprising a drive motor connected to one end of the belt/chain for providing power, characterized by: including a fixed arm, an adjusting spindle that is fixed in the fixed arm top, the adjusting spindle is equipped with a penetrating spacing hole on the axial direction, is equipped with one in spacing downthehole and rotates the pivot of being connected with spacing hole, driving motor with the pivot is used the area/chain to connect, the axis in spacing hole is skew the axis of adjusting spindle. The bearing is fixed at two ends of the limiting hole, the rotating shaft is fixed in the limiting hole through the bearing, and the central axis of the rotating shaft coincides with the central axis of the limiting hole. The top end of the fixed arm is provided with a clamping assembly used for clamping the adjusting shaft, the clamping assembly comprises a fixed cavity used for fixing the adjusting shaft, one end of the fixed cavity is provided with an adjusting opening communicated with the fixed cavity, and two sides of the adjusting opening are provided with a fastening piece used for clamping and folding the adjusting opening.
Description
Technical Field
The utility model relates to a overspeed device tensioner technical field especially relates to an eccentric overspeed device tensioner with adjustable be used for taking/chain drive.
Background
At present, the transmission can be divided into three modes of gear transmission, belt transmission and chain transmission, which can transmit energy between shafts, while the belt transmission and the chain transmission are usually used to transmit energy from one rotary driving part to another, and are suitable for the transmission with longer distance between two shafts, the belt transmission and the chain transmission are mechanical transmission which uses a flexible belt or chain tensioned on a belt wheel or a chain wheel to carry out motion or power transmission, according to the different transmission principles, the belt transmission has friction type transmission by the friction force between the belt and the belt wheel, and also has engaged transmission by the teeth on the belt and the belt wheel, the chain transmission moves or transmits power by the chain meshing between a main driving chain wheel and a driven chain wheel, the belt transmission and the chain transmission have simple structure, easy maintenance and low price, can transmit energy for a long distance, and therefore, the belt transmission is widely applied to the output of mechanical energy, because the belt transmission adopts flexible materials to manufacture the transmission belt, the chain transmission adopts metal with ductility to manufacture the transmission chain, so that the transmission belt or the transmission chain is easy to extend in the use process, thereby reducing the friction force of belt transmission and the meshing force of the chain transmission, ensuring the tension to be constant, influencing energy transmission and reducing the service life of the belt or the chain.
Traditional tensioning mode has hard tensioning, but the belt or the chain operation lax phenomenon appears naturally after a period, need adjust once more, and spring tensioning cost is low, but the mechanism is complicated, appears the spring easily and takes off the round pin, and mechanism wearing and tearing all need add the take-up pulley in traditional tensioning mode moreover and assist the going on.
Disclosure of Invention
To the problem that prior art exists, the utility model aims at providing a can be through simple structure, do not add extra peripheral hardware, reduce manufacturing and maintenance cost, the device of the adjustment belt chain drive distance of being convenient for utilizes the device to improve the frictional force of belt in the use and the meshing force of chain in the use, improves the life of belt or chain, reduces use cost.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: an adjustable eccentric tensioner for a belt/chain drive comprising a drive motor connected to one end of the belt/chain for providing power, characterized by: including a fixed arm, an adjusting spindle that is fixed in the fixed arm top, the adjusting spindle is equipped with a penetrating spacing hole on the axial direction, is equipped with one in spacing downthehole and rotates the pivot of being connected with spacing hole, driving motor with the pivot is used the area/chain to connect, the axis in spacing hole is skew the axis of adjusting spindle.
The bearing is fixed at two ends of the limiting hole, the rotating shaft is fixed in the limiting hole through the bearing, and the central axis of the rotating shaft coincides with the central axis of the limiting hole.
The adjustable eccentric tensioning device for belt/chain transmission is characterized in that the top end of the fixed arm is provided with a clamping assembly for clamping the adjusting shaft, the clamping assembly comprises a fixed cavity for fixing the adjusting shaft, one end of the fixed cavity is provided with an adjusting opening communicated with the fixed cavity, and two sides of the adjusting opening are provided with fastening pieces for clamping and folding the adjusting opening.
In the adjustable eccentric tensioning device for belt/chain transmission, the fastening piece comprises a hole position arranged on two sides of the adjusting opening, a threaded hole used for being overlapped with the hole position, and a bolt used for fixing the hole position and the threaded hole when the adjusting opening is clamped and folded.
In the adjustable eccentric tensioning device for belt/chain transmission, the two sides of the adjusting opening are respectively provided with the fixing plates in an extending manner, and the fastening piece is arranged on the fixing plates.
The adjustable eccentric tensioning device for belt/chain transmission comprises a fixed arm, a connecting plate and a fixed hole, wherein the fixed arm comprises two arm plates which are arranged in parallel, the connecting plate is connected with the two arm plates, and the fixed hole is formed in the other end of the fixed arm.
In the adjustable eccentric tensioning device for belt/chain transmission, the adjusting rod for rotating the adjusting shaft is arranged outside the adjusting shaft.
The utility model relates to an eccentric overspeed device tensioner with adjustable be used for taking/chain drive's beneficial effect is: through the eccentric design of the adjusting shaft and the rotating shaft, when the transmission belt or the transmission chain is loosened due to long-time use, the eccentric adjusting shaft is rotated, the tensioning purpose is achieved, and the service life of the transmission belt or the transmission chain is prolonged; the regulating spindle makes conveniently, the manufacturing cost of the equipment that reduces, eccentric regulating spindle is whole integrated into one piece with the pivot to combine the working method stable, it is not fragile, easily maintain, reduce the maintenance cost, the regulating spindle sets up penetrating spacing hole on the axial direction, the pivot is at spacing downthehole rotation, when rotating the regulating spindle and mediating, whole spacing hole rotates simultaneously, the regulating spindle both sides rotate simultaneously along with spacing hole, the change of both sides transmission position can not take place.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a schematic structural view of the fixing arm of the present invention;
fig. 4 is an enlarged view of the structure of part a of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Example 1:
as shown in fig. 1-4, an adjustable eccentric tensioning device for belt/chain transmission comprises a driving motor connected with one end of a belt/chain for providing power, a fixing arm 1, an adjusting shaft 2 fixed at the top end of the fixing arm 1, a through limiting hole 3 arranged on the adjusting shaft 2 in the axial direction, a rotating shaft 4 rotatably connected with the limiting hole and arranged in the limiting hole 3, the driving motor and the rotating shaft 4 are connected by using the belt/chain, and the central axis of the limiting hole 3 deviates from the central axis of the adjusting shaft 2.
The top end of the fixed arm 1 is provided with a clamping component for clamping the adjusting shaft 2, the clamping component comprises a fixed cavity 10 for fixing the adjusting shaft, one end of the fixed cavity 10 is provided with an adjusting opening 11 communicated with the fixed cavity, and two sides of the adjusting opening 11 are provided with fastening pieces for clamping and folding the adjusting opening.
The fastening piece comprises a hole site 6 arranged on two sides of the adjusting opening, a threaded hole 7 used for being overlapped with the hole site, and a bolt used for fixing the hole site 6 and the threaded hole 7 when the adjusting opening is clamped and folded.
Two sides of the adjusting opening 11 are respectively provided with a fixing plate 12 in an extending way, and the fastening pieces are arranged on the fixing plates 12.
The fixing arm 1 comprises a fixing hole 9 for connecting with equipment, two arm plates 13 arranged in parallel and a connecting plate 8 for connecting the two arm plates, and the arm plates 13 are fixedly connected with the connecting plate 8.
When the device works, two parallel arm plates 13 connected by a connecting plate 8 are set according to the transmission distance, an annular fixed cavity 10 is arranged at the same position of one end of each arm plate 13, a hollow fixed hole 9 is arranged at the other end of each arm plate, a fixed arm 1 with holes at two ends is integrally formed, the fixed arm 1 is fixedly connected with mechanical equipment to be used through a fixed shaft or a bolt penetrating through the fixed hole 9, an adjusting opening 11 communicated with the adjusting cavity 10 is formed in the principle fixed arm end of the fixed cavity 10, an adjusting shaft 2 with an eccentric limiting hole in the axial direction is arranged in the adjusting cavity, a bearing 5 is arranged on the eccentric limiting hole 3 of the adjusting shaft 2, the rotating shaft 4 is connected with the adjusting shaft 2 through the bearing, the adjusting shaft 2 is adjusted to enable the axial distance between the central shaft of the rotating shaft 4 and the central shaft of the fixed hole 9 to be shortest, a belt is well installed, and the fixing bolt penetrates through a hole site 6 formed in one side of the adjusting opening 11 and then The hole 7 is hinged, and an opening for horizontally placing the bolt is formed above the hole position 6, so that the bolt is tightly contacted with the hole position after being connected. After the belt is used for a period of time, elastic change can be generated, the motor is stopped to operate at the moment, the fixing bolt is loosened, the adjusting opening 11 is opened, the adjusting shaft 2 can rotate freely in the fixing cavity 10, the adjusting shaft 2 is rotated, the rotating shaft 4 rotates along with the limiting hole 3 of the adjusting shaft 2, the distance between the central shaft of the rotating shaft 4 and the central shaft of the fixing hole 9 is increased, the belt is tensioned, the adjusting opening 11 is clamped and folded by the fixing bolt after the belt is tensioned, the adjusting shaft 2 is fixed in the fixing cavity 10, the distance between the central shaft of the rotating shaft and the central shaft of the fixing hole is increased, and the problem of belt looseness caused by elastic change of the belt is solved.
The specific length of the fixed arm is determined by the length of the transmission belt, after the fixed arm is fixed, when the transmission belt is loosened, the distance between the rotating shaft and the motor is increased by rotating the adjusting shaft, so that the purpose of tightening the belt is achieved, the rotating shaft is fixed by the adjusting shaft in the axial direction, the rotating shaft rotates integrally when the adjusting shaft is rotated, the phenomenon that two sides of the rotating shaft are not on the same level and transmission deviation is caused is avoided, and particularly, a tool on the other side of the rotating shaft does not move in the vertical direction due to the fact that the tool is not on the same level. The regulating shaft is an integral metal component, so that the maintenance is convenient, the rotating shaft is connected with the regulating shaft through a bearing, the disassembly is convenient, and the maintenance is easy.
Example 2:
the same parts of this embodiment as those of embodiment 1 are not described again, but the differences are: the two sides of the adjusting opening 11 extend outwards to form a duckbilled fixing plate 12, the hole site 6 and the threaded hole 7 are arranged on the fixing plate 12, and the fixing bolt penetrates through the hole site 6 and then is in threaded connection with the threaded hole 7, so that the purpose of clamping and folding the adjusting opening is achieved.
Through the setting of duckbilled fixed plate, can be more convenient set up hole site and screw hole, increase the thickness at combination position, improve the tightness, avoid leading to the chamber wall attenuation in fixed chamber because of drilling.
Example 3:
the same parts of this embodiment as those of embodiments 1 and 2 are not described again, but the differences are: the rotating shaft 4 is provided with a gear on one side of the motor, and the motor drives the rotating shaft to rotate through a chain meshed with the gear.
Compared with belt transmission, transmission chain transmission prevents the transmission belt from sliding during power transmission through the meshing of the gear and the chain, and can output power more greatly.
Example 4:
this embodiment and embodiment 1, embodiment 2, embodiment 3 the same part is no longer repeated, and the difference lies in after the fixed plate 12 of setting up the duckbilled outside the regulation mouth, and the device that presss from both sides tight the closure to the fixed plate is that one end is the transposition connection, and the other end has threaded connection structure ring body, and the ring body is installed on the fixed plate of duckbilled after, the threaded connection's of screwing one side is pressed from both sides tight the closure to the regulation mouth.
Through adding external fastener, can reduce the damage to equipment that brings because of the processing of equipment to the at utmost, reach the purpose of protection equipment.
Example 5:
in this embodiment, the same parts as those in embodiments 1, 2, 3, and 4 are not repeated, but the difference is that one to three evenly distributed adjusting rods are fixed to the outer edge of the adjusting shaft 2, and when the rotating shaft is desired to be rotated, the adjusting rod is pulled to rotate the adjusting shaft after the adjusting opening is released, so as to adjust the distance between the axis of the rotating shaft and the axis of the fixing hole.
The rotation of the rotating shaft is more convenient through the added adjusting rod, and the operation is facilitated.
The above embodiments are only for illustrating the structural conception and the characteristics of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention shall be covered by the protection scope of the present invention.
Claims (7)
1. An adjustable eccentric tensioner for a belt/chain drive comprising a drive motor connected to one end of the belt/chain for providing power, characterized by: including a fixed arm, an adjusting spindle that is fixed in the fixed arm top, the adjusting spindle is equipped with a penetrating spacing hole on the axial direction, is equipped with one in spacing downthehole and rotates the pivot of being connected with spacing hole, driving motor with the pivot is used the area/chain to connect, the axis in spacing hole is skew the axis of adjusting spindle.
2. Adjustable eccentric tensioner for belt/chain drives according to claim 1, characterized in that: the bearing is fixed at two ends of the limiting hole, the rotating shaft is fixed in the limiting hole through the bearing, and the central axis of the rotating shaft coincides with the central axis of the limiting hole.
3. Adjustable eccentric tensioner for belt/chain drives according to claim 2, characterized in that: the top end of the fixed arm is provided with a clamping assembly used for clamping the adjusting shaft, the clamping assembly comprises a fixed cavity used for fixing the adjusting shaft, one end of the fixed cavity is provided with an adjusting opening communicated with the fixed cavity, and two sides of the adjusting opening are provided with a fastening piece used for clamping and folding the adjusting opening.
4. Adjustable eccentric tensioner for belt/chain drives according to claim 3, characterized in that: the fastening piece comprises a hole site arranged on two sides of the adjusting opening, a threaded hole used for being overlapped with the hole site, and a bolt used for fixing the hole site and the threaded hole when the adjusting opening is clamped and folded.
5. Adjustable eccentric tensioner for belt/chain drives according to claim 3, characterized in that: the adjusting opening is provided with a fixing plate on two sides, and the fastening piece is arranged on the fixing plate.
6. Adjustable eccentric tensioner for belt/chain drives according to claim 4 or 5, characterized in that: the fixed arm comprises two arm plates arranged in parallel, a connecting plate for connecting the two arm plates, and a fixed hole arranged at the other end of the fixed arm.
7. Adjustable eccentric tensioner for belt/chain drives according to claim 6, characterized in that: and an adjusting rod used for rotating the adjusting shaft is arranged outside the adjusting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540587.2U CN212839218U (en) | 2020-07-30 | 2020-07-30 | Adjustable eccentric tensioning device for belt/chain transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540587.2U CN212839218U (en) | 2020-07-30 | 2020-07-30 | Adjustable eccentric tensioning device for belt/chain transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212839218U true CN212839218U (en) | 2021-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021540587.2U Active CN212839218U (en) | 2020-07-30 | 2020-07-30 | Adjustable eccentric tensioning device for belt/chain transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212839218U (en) |
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2020
- 2020-07-30 CN CN202021540587.2U patent/CN212839218U/en active Active
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