CN219362247U - Transmission chain tensioning device - Google Patents
Transmission chain tensioning device Download PDFInfo
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- CN219362247U CN219362247U CN202223364654.1U CN202223364654U CN219362247U CN 219362247 U CN219362247 U CN 219362247U CN 202223364654 U CN202223364654 U CN 202223364654U CN 219362247 U CN219362247 U CN 219362247U
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Abstract
The utility model provides a transmission chain tensioning device, which comprises a fixed plate, an adjusting plate and a grooved pulley shaft, wherein the adjusting plate comprises a vertical plate and a transverse plate, the transverse plate is vertically connected with the lower part of the left side surface of the vertical plate, and the vertical plate and the transverse plate form an L-shaped structure together; the fixing plate is positioned right below the transverse plate, the right end of the fixing plate is connected with the bottom surface of the mounting plate for mounting the chain transmission roll shaft, the left end of the fixing plate is in threaded connection with an adjusting bolt, and the left end of the transverse plate is provided with a first screw hole; the grooved wheel shaft is vertically connected with the upper part of the right side surface of the vertical plate, the grooved wheel shaft is parallel to the chain transmission roll shaft, a grooved wheel used for tensioning a transmission chain is rotatably arranged on the grooved wheel shaft, and a groove is formed in the grooved wheel; the lower part of the right side of vertical board is laminated mutually with the lateral surface of mounting panel, is provided with two screw holes along vertical direction relatively on the mounting panel, vertically on the vertical board be provided with screw hole relative rectangular shape hole. The utility model can conveniently adjust the tension of the transmission chain.
Description
Technical Field
The utility model belongs to the technical field of cigarette manufacturing, and particularly relates to a transmission chain tensioning device.
Background
The tobacco stem cutting machine in tobacco industry conveys tobacco stems to a cutter gate through the operation of upper and lower chain rows, the tobacco stems are cut into cut stems meeting the technological requirements under a cutter roller rotating at high speed, the upper chain row is driven by the transmission of a chain to drive the driven roller of the upper chain row to operate, in the actual production process, the driven roller of the upper chain row is arranged at the tail end of a frame, and the two driving rollers forming the upper chain row parallelogram mechanism adopt three chain row conveying, but the upper chain row driving chain has the following actual problems to be solved in need of solving: the transmission chain is not provided with a tensioning device, the transmission chain is not easy to install due to overtightening, and the transmission chain easily jumps when in overtightening transmission, so that the operation effect of the parallelogram mechanism is affected. Therefore, how to design a tensioning device to conveniently adjust the tensioning force of the transmission chain, so that the transmission chain is not easy to be too tight or too loose, and the tensioning device is a technical problem which needs to be solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a transmission chain tensioning device which is used for solving the technical problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the transmission chain tensioning device comprises a fixed plate, an adjusting plate and a sheave shaft, wherein the adjusting plate comprises a vertical plate which is vertically arranged and a transverse plate which is horizontally arranged, the transverse plate is vertically connected with the lower part of the left side surface of the vertical plate, and the vertical plate and the transverse plate form an L-shaped structure together; the fixing plate is positioned right below the transverse plate, the right end of the fixing plate is connected with the bottom surface of the mounting plate for mounting the chain transmission roller shaft, the left end of the fixing plate is connected with an adjusting bolt in a threaded manner, and the left end of the transverse plate is provided with a first screw hole matched with the threaded section of the adjusting bolt; the grooved pulley shaft is vertically connected with the upper part of the right side surface of the vertical plate, the grooved pulley shaft is parallel to the chain transmission roller shaft, a grooved pulley for tensioning a transmission chain is rotatably arranged on the grooved pulley shaft, and a groove for accommodating the transmission chain is formed in the grooved pulley; the lower part of the right side of vertical board with the lateral surface of mounting panel is laminated mutually, be provided with two on the mounting panel along vertical direction relatively be used for with locking bolt's screw thread section matched with screw hole, vertical be provided with on the vertical board with the rectangular shape hole that the screw hole is relative.
Preferably, the fixing plate is detachably connected with the mounting plate.
Preferably, a fixing hole for the fixing bolt to pass through is formed in the right end of the fixing plate, a second screw hole matched with the threaded section of the fixing bolt is formed in the bottom surface of the mounting plate, and the second screw hole is opposite to the fixing hole.
Preferably, the number of the fixing holes and the number of the second screw holes are two, and the fixing holes and the second screw holes are arranged in one-to-one opposite mode.
Preferably, the left end of the sheave shaft is provided with a mounting shaft, the upper portion of the vertical plate is provided with a mounting hole matched with the mounting shaft, the end face of the upper end of the vertical plate is provided with a third screw hole matched with the threaded section of the locking screw, and the third screw hole is vertically communicated with the mounting hole.
Preferably, a bearing is sleeved on the grooved wheel shaft, and the grooved wheel is sleeved on the bearing.
The utility model has the beneficial effects that:
when the transmission chain tensioning device is used, the transverse plate can be driven to move upwards or downwards by utilizing the threaded fit of the first screw hole and the threaded section of the adjusting bolt through rotating the adjusting bolt, so that the vertical plate, the grooved wheel shaft and the grooved wheel move up and down along with the transverse plate, the downward pressure of the grooved wheel on the transmission chain is adjusted, the tensioning force of the transmission chain is adjusted, and after the adjustment is finished, the threaded section of the locking bolt passes through the strip-shaped hole and then is matched with the threaded hole, and then the locking bolt is fastened to press the vertical plate on the mounting plate. Therefore, the utility model can conveniently realize the adjustment of the tension force of the transmission chain, thereby better avoiding the phenomenon of overtightening or loosening of the transmission chain and ensuring that the stem cutting machine can work normally.
Drawings
For a clearer description of embodiments of the present application or of the prior art, reference will be made briefly to the drawings which are required to be used in the embodiments, and a further detailed description of specific embodiments of the utility model will be given with reference to the accompanying drawings, in which
FIG. 1 is a schematic view of a drive chain tensioner according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a driving chain tensioner according to an embodiment of the present utility model in use.
The reference numerals in the drawings:
11. a fixing plate, 12, fixing bolts, 13, adjusting bolts, 21 and a vertical plate,
22. a strip-shaped hole 23, a transverse plate 24, a first screw hole 25 and a third screw hole,
31. a grooved wheel shaft 32, grooved wheels 33, grooves 34, a mounting shaft 41 and a mounting plate,
42. screw holes 43, chain drive roll shafts.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the present solution will be described in further detail with reference to specific embodiments.
As shown in fig. 1 and 2, an embodiment of the present utility model provides a transmission chain tensioning device, which includes a fixed plate 11, an adjusting plate, and a sheave shaft 31, where the adjusting plate includes a vertical plate 21 that is vertically arranged, and a horizontal plate 23 that is horizontally arranged, and the horizontal plate is vertically connected to the lower part of the left side surface of the vertical plate, and the vertical plate and the horizontal plate together form an L-shaped structure; the fixing plate is positioned right below the transverse plate, the right end of the fixing plate is connected with the bottom surface of the mounting plate 41 for mounting the chain transmission roller shaft 43, the left end of the fixing plate is in threaded connection with the adjusting bolt 13, and the left end of the transverse plate is provided with a first screw hole 24 matched with the threaded section of the adjusting bolt; the grooved wheel shaft is vertically connected with the upper part of the right side surface of the vertical plate, the grooved wheel shaft is parallel to the chain transmission roller shaft, a grooved wheel 32 for tensioning a transmission chain is rotatably arranged on the grooved wheel shaft, and a groove 33 for accommodating the transmission chain is formed in the grooved wheel; the lower part of the right side of vertical board with the lateral surface of mounting panel is laminated mutually, be provided with two screw holes 42 that are used for cooperating with the screw thread section of lock bolt relatively along vertical direction on the mounting panel, vertically be provided with on the vertical board with the rectangular shape hole 22 that the screw hole is relative.
When the transmission chain tensioning device provided by the embodiment of the utility model is used, the transverse plate 23 can be driven to move upwards or downwards by utilizing the threaded cooperation of the first screw hole 24 and the threaded section of the adjusting bolt 13 through rotating the adjusting bolt 13, so that the vertical plate 21, the sheave shaft 31 and the sheave 32 move up and down along with the transverse plate 23, the downward pressure of the transmission chain by the sheave 32 is adjusted, the tensioning force of the transmission chain is adjusted, and after the adjustment is finished, the threaded section of the locking bolt passes through the strip-shaped hole and then is matched with the threaded hole, and then the vertical plate is tightly pressed on the mounting plate. Therefore, the utility model can conveniently realize the adjustment of the tension force of the transmission chain, thereby better avoiding the phenomenon of overtightening or loosening of the transmission chain and ensuring that the stem cutting machine can work normally.
Further, the fixing plate 11 is detachably connected to the mounting plate 41, so that the fixing plate can be easily replaced or maintained. It will be appreciated that the fixed plate is parallel to the cross plate.
Specifically, the right end of the fixing plate 11 is provided with a fixing hole through which the fixing bolt 12 passes, and the bottom surface of the mounting plate is provided with a second screw hole matched with the threaded section of the fixing bolt, and the second screw hole is opposite to the fixing hole. By adopting the scheme, the fixing plate can be installed on the mounting plate only by enabling the threaded section of the fixing bolt to penetrate through the fixing hole and then be in threaded fit with the second screw hole and then be fastened.
Preferably, the number of the fixing holes and the number of the second screw holes are two, and each fixing hole and the second screw hole are arranged in a one-to-one opposite manner, so that the fixing plate 11 is mounted on the mounting plate 41 through the two fixing bolts 12, and the connection between the fixing plate and the mounting plate is firmer and more reliable.
It can be understood that when the adjusting bolt 13 is rotated to drive the adjusting plate and the sheave to move up and down to adjust the tension of the transmission chain, the locking bolt is loosened firstly, that is, the locking bolt does not compress the vertical plate, so that when the adjusting plate moves up and down, the locking bolt is utilized to guide the up and down movement of the adjusting plate well due to the fact that the threaded section of the locking bolt is still matched with the threaded hole at the moment, and the inclination of the adjusting plate is avoided.
Further, the left end of the sheave shaft 31 is provided with a mounting shaft 34, the upper portion of the vertical plate is provided with a mounting hole adapted to the mounting shaft 34, the upper end face of the vertical plate is provided with a third screw hole 25 for being matched with a threaded section of the locking screw, and the third screw hole is vertically communicated with the mounting hole. By adopting the scheme, when the position of the grooved pulley in the horizontal direction needs to be adjusted, the locking screw is only required to be loosened, so that the mounting shaft moves left or right along the axis of the mounting shaft, the grooved pulley is driven to move left and right together with the grooved pulley shaft at the moment until the transmission chain is positioned in the groove of the grooved pulley, the transmission chain is only pressed down by the grooved pulley without left or right deflection, and then the locking screw is screwed down, so that the lower end of the screwing screw is tightly propped against the mounting shaft, and the mounting shaft is prevented from moving again.
It will be appreciated that in the present utility model there are three drive chains on the upper row and three annular grooves 33 on the sheave 32, the three drive chains being located in the three grooves respectively in use. When the tensioning force is required to be increased, the adjusting bolt is only required to be rotated, so that the grooved pulley moves downwards along with the adjusting plate until the tensioning force is proper, and then the locking bolt is fastened; when the tensioning force is required to be reduced, the adjusting bolt is only required to be rotated, so that the grooved pulley moves upwards along with the adjusting plate until the tensioning force is proper, and then the locking bolt is fastened.
Specifically, the sheave shaft 31 is sleeved with a bearing, and the sheave is sleeved on the bearing, so that the sheave can be conveniently rotated on the sheave shaft, and the sheave can be rotated under the drive of the drive chain when the drive chain runs, so that the influence on the running of the drive chain is avoided. It can be understood that at this time, the inner ring of the bearing is fixedly sleeved on the grooved wheel shaft, the grooved wheel is fixedly sleeved on the outer ring of the bearing, namely, the inner ring of the bearing is in interference fit with the grooved wheel shaft, and the outer ring of the bearing is in interference fit with the central hole of the grooved wheel.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that these examples are only for illustrating the present utility model and are not intended to limit the scope of the present utility model, and that various changes and modifications may be made by one skilled in the art after reading the present disclosure, and the equivalent forms thereof fall within the scope of the appended claims.
Claims (6)
1. The transmission chain tensioning device is characterized by comprising a fixed plate, an adjusting plate and a grooved pulley shaft, wherein the adjusting plate comprises a vertical plate which is vertically arranged and a horizontal plate which is horizontally arranged, the horizontal plate is vertically connected with the lower part of the left side surface of the vertical plate, and the vertical plate and the horizontal plate form an L-shaped structure together; the fixing plate is positioned right below the transverse plate, the right end of the fixing plate is connected with the bottom surface of the mounting plate for mounting the chain transmission roller shaft, the left end of the fixing plate is connected with an adjusting bolt in a threaded manner, and the left end of the transverse plate is provided with a first screw hole matched with the threaded section of the adjusting bolt; the grooved pulley shaft is vertically connected with the upper part of the right side surface of the vertical plate, the grooved pulley shaft is parallel to the chain transmission roller shaft, a grooved pulley for tensioning a transmission chain is rotatably arranged on the grooved pulley shaft, and a groove for accommodating the transmission chain is formed in the grooved pulley; the lower part of the right side of vertical board with the lateral surface of mounting panel is laminated mutually, be provided with two on the mounting panel along vertical direction relatively be used for with locking bolt's screw thread section matched with screw hole, vertical be provided with on the vertical board with the rectangular shape hole that the screw hole is relative.
2. The drive chain tensioner as set forth in claim 1, wherein said fixed plate is detachably connected to said mounting plate.
3. The transmission chain tensioner according to claim 2, wherein the right end of the fixing plate is provided with a fixing hole through which a fixing bolt passes, and the bottom surface of the mounting plate is provided with a second screw hole for mating with a threaded section of the fixing bolt, the second screw hole being opposite to the fixing hole.
4. A drive chain tensioner according to claim 3, wherein the number of the fixing holes and the second screw holes is two, and each of the fixing holes is disposed in one-to-one opposition to the second screw hole.
5. The transmission chain tensioning device according to claim 1, wherein a mounting shaft is arranged at the left end of the sheave shaft, a mounting hole matched with the mounting shaft is formed in the upper portion of the vertical plate, a third screw hole matched with a thread section of the locking screw is formed in the end face of the upper end of the vertical plate, and the third screw hole is vertically communicated with the mounting hole.
6. The transmission chain tensioner of claim 1, wherein the sheave axle is sleeved with a bearing, and the sheave is sleeved on the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223364654.1U CN219362247U (en) | 2022-12-09 | 2022-12-09 | Transmission chain tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223364654.1U CN219362247U (en) | 2022-12-09 | 2022-12-09 | Transmission chain tensioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219362247U true CN219362247U (en) | 2023-07-18 |
Family
ID=87145947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223364654.1U Active CN219362247U (en) | 2022-12-09 | 2022-12-09 | Transmission chain tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219362247U (en) |
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2022
- 2022-12-09 CN CN202223364654.1U patent/CN219362247U/en active Active
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