CN210978410U - Cut stem silk machine and cut stem silk machine main drive chain straining device thereof - Google Patents
Cut stem silk machine and cut stem silk machine main drive chain straining device thereof Download PDFInfo
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- CN210978410U CN210978410U CN201921914843.7U CN201921914843U CN210978410U CN 210978410 U CN210978410 U CN 210978410U CN 201921914843 U CN201921914843 U CN 201921914843U CN 210978410 U CN210978410 U CN 210978410U
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Abstract
The utility model discloses a cut stem silk machine and cut stem silk machine final drive chain straining device thereof, locate tensioning sprocket, lead screw on the tensioning back shaft including tensioning back shaft, cover, with the lower screw rod cover of the lower extreme threaded connection of lead screw, with the last lead screw cover of the upper end threaded connection of lead screw, lower lead screw cover articulates on being used for with cut stem silk machine frame fixed connection's support, goes up the lead screw cover and is equipped with the support ring, and the support ring is established with tensioning back shaft cover and is connected. The application provides a cut stem silk machine final drive chain straining device can replace the heavy bar copper among the prior art to adjust the tensile force of tensioning chain, and it is high to the adjustment precision of tensioning degree, and easy operation is convenient, can not make tensioning chain, tension sprocket and relevant annex appear the damage simultaneously.
Description
Technical Field
The utility model relates to a production facility technical field in the tobacco shred manufacturing workshop of cigarette factory, more specifically say, relate to a cut stem silk machine final drive chain straining device. Furthermore, the utility model discloses still relate to a cut stem silk machine including above-mentioned cut stem silk machine final drive chain straining device.
Background
The cut stem machine is the main equipment on the cut stem production line of the tobacco shred making workshop of the cigarette factory, and the specific working process is to cut the processed tobacco stems into cut stems meeting the process requirements. The transmission system of the cut stem machine is driven by a synchronous servo motor with a speed reducer, and the upper and lower chains are conveyed through stepped chain transmission and gear transmission. When the tension of the chain is adjusted, due to the spatial position and the structure, the tension of the main transmission chain in the hierarchical chain transmission is difficult to reach a proper tension, and the tension of the chain is not proper, so that the whole chain transmission system is not stable in operation. The chain is too loose or too tight, which can cause the problems of premature abrasion, breakage, tooth jumping and the like of the chain, affect the normal operation of equipment and the service life of the chain, the chain wheel and other transmission parts related to the chain.
At present, in a driving transmission mechanism of a stem cutting machine, a tensioning sprocket is sleeved on a tensioning support shaft, when the tensioning degree of a main transmission chain of the stem cutting machine needs to be adjusted, the tensioning support shaft and the tensioning sprocket need to be rotated clockwise by taking a tensioning rotating shaft as a center, however, the tensioning sprocket cannot be rotated by hand pushing, and the position of the tensioning sprocket can be adjusted only by using a method that a heavy copper bar of about 10kg impacts the tensioning mechanism, so that the tensioning sprocket compresses the tensioning chain to achieve the tensioning force required by the tensioning chain.
In actual operation, the operation space of an operator is small, the impact operation is difficult, and the position and the force of impact are not easy to master, so that the tension of the chain is difficult to control. Meanwhile, the heavy copper bar is used for impacting the tensioning mechanism, so that the impacted parts are easy to damage and deform. In addition, when adjusting, the tensioning mechanism can rotate anticlockwise and slide downwards due to self weight, two persons are needed to cooperate, one person strikes the other person and is responsible for fastening the fastening screw of the tensioning mechanism by using the wrench, the work can be finished, and the labor cost is high.
In summary, how to facilitate the user to adjust the tension degree of the main transmission chain, avoid the damage of the tension support shaft, and improve the control precision of the tension force is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a main transmission chain tensioning mechanism of a stem shredding machine, which can adjust the position of a tensioning sprocket by using a lead screw, and has the advantages of convenient operation and high control precision; meanwhile, the heavy copper bar is not needed to be used for impacting the tensioning mechanism in the adjusting process, so that the deformation of the tensioning support shaft and the tensioning support plate is reduced. Another object of the utility model is to provide a cut stem silk machine including above-mentioned cut stem silk machine final drive chain straining device.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a cut stem silk machine final drive chain straining device, locates including tensioning back shaft, cover tensioning sprocket on the tensioning back shaft still includes the lead screw, with the lower lead screw cover of the lower extreme threaded connection of lead screw, with the last lead screw cover of the upper end threaded connection of lead screw, lead screw cover articulates on being used for with cut stem silk machine frame fixed connection's support down, it is equipped with the support ring to go up the lead screw cover, the support ring with the connection is established to tensioning back shaft cover.
Preferably, a polygonal rotating handle is arranged in the middle of the screw rod and is positioned between the lower screw rod sleeve and the upper screw rod sleeve.
Preferably, the support ring is provided at an end of the upper screw rod sleeve.
Preferably, a lower locking nut in threaded connection with the screw rod is arranged between the lower screw rod sleeve and the rotary handle.
Preferably, an upper locking nut in threaded connection with the screw rod is arranged between the upper screw rod sleeve and the rotating handle.
Preferably, the outer side wall of the rotary handle is in an equilateral hexagon shape.
Preferably, the periphery of the screw rod is provided with a left-handed thread and a right-handed thread, and the rotary handle is arranged between the left-handed thread and the right-handed thread.
A cut stem machine comprises any one of the above main transmission chain tensioning mechanisms.
The utility model provides a cut stem silk machine final drive chain straining device includes tensioning back shaft, tensioning sprocket, support, lead screw, lower lead screw cover, goes up the lead screw cover, and wherein, lower lead screw cover is established at the lower extreme of lead screw and is articulated with the support, goes up the upper end that the lead screw was located to lead screw cover and is equipped with the support ring, and the tensioning back shaft cup joints in the support ring.
In practical application, when the tensioning degree of the tensioning chain needs to be adjusted, a user can control the screw rod to rotate, so that the distance between the lower screw rod sleeve and the upper screw rod sleeve is increased or reduced, the support ring drives the tensioning support shaft to move in the process, and the tensioning chain wheel sleeved on the tensioning support shaft is indirectly driven to move, and the effects of adjusting the position of the tensioning chain wheel and adjusting the tensioning degree of the tensioning chain are achieved.
After the main transmission chain tensioning mechanism of the cut stem shredding machine is put into use, a single operator can complete the adjustment work of the tensioning force of the tensioning chain, and manpower is saved. Meanwhile, the screw rod is used for enabling the tensioning chain to reach a proper tensioning force, the tensioning force is more accurately controlled, and the operation is convenient, rapid and safe. In addition, during operation, a heavy copper bar or other heavy tools are not needed to be used for impact operation, and the problems of damage, deformation and the like caused by impact on the tensioning mechanism are avoided.
The application also provides a cut stem silk machine, has above-mentioned beneficial effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a main transmission chain tensioning mechanism of a stem cutting machine;
fig. 2 is a schematic structural view of the tension support plate.
The reference numbers in FIGS. 1-2 are:
the device comprises a support 1, a pin 2, a lower screw rod sleeve 3, a rotary handle 4, a screw rod 5, an upper screw rod sleeve 6, a support ring 7, an upper locking nut 8, a lower locking nut 9, a tensioning support plate 10, a circular through hole 11 and a tensioning support shaft mounting hole 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, fig. 1 is a schematic structural view of a main transmission chain tensioning mechanism of a stem cutting machine; fig. 2 is a schematic structural view of the tension support plate.
The application provides a cut stem silk machine final drive chain straining device, including the tensioning back shaft, the tensioning sprocket on the tensioning back shaft is located to the cover, still include lead screw 5, with the lower lead screw cover 3 of the lower extreme threaded connection of lead screw 5, with the last lead screw cover 6 of the upper end threaded connection of lead screw 5, lower lead screw cover 3 articulates on being used for with cut stem silk machine frame fixed connection's support 1, goes up lead screw cover 6 and is equipped with support ring 7, support ring 7 establishes with the tensioning back shaft cover and is connected.
Specifically, the tension support plate 10 is sleeved and connected with the tension support shaft through the tension support shaft mounting hole 12. The support 1 is fixed on the base of the frame of the stem cutting machine through the modes of bolt connection, welding and the like. The lead screw 5 is provided with the external screw thread structure, and the both ends of lead screw 5 are overlapped respectively and are equipped with lead screw cover 3 and last lead screw cover 6 down, and 3 lower extremes of lower lead screw cover are articulated with support 1 through pin 2, and after lead screw 5 rotated, the interval of lower lead screw cover 3 and last lead screw cover 6 can increase thereupon or reduce. The support ring 7 is sleeved on the periphery of the tensioning support shaft and plays a role in connection and support. In view of the limited space in which the tension support shaft is located, it is preferable that the support ring 7 be provided at the end of the upper screw housing 6 so as to avoid interference of the upper screw housing 6 with other surrounding components.
When the tensioning degree of the tensioning chain needs to be adjusted, an operator controls the screw rod 5 to rotate by using operating tools such as a wrench and the like, the distance between the lower screw rod sleeve 3 and the upper screw rod sleeve 6 is changed, in the process, the support ring 7 drives the tensioning support shaft and the tensioning chain wheel sleeved on the tensioning support shaft to synchronously move, the position of the tensioning chain wheel is changed, and the effect of adjusting the tensioning degree of the tensioning chain is achieved.
The application provides a cut stem silk machine final drive chain straining device can replace the heavy bar copper among the prior art, adjusts the tensile force of tensioning chain. The tension chain wheel is driven to move by the expansion amount of the screw rod 5, so that the position of the tension chain is more accurately adjusted, and the running safety and stability of a chain transmission system are improved; meanwhile, the operation is simple and convenient, the maintenance difficulty is reduced, the maintenance work efficiency is improved, the operation can be finished by a single operator, and the labor reduction cost is low; in addition, the tensioning support shaft is not impacted by heavy copper bars or other heavy appliances, so that the tensioning support shaft is not easy to damage and deform, the service lives of the tensioning chain, the tensioning chain wheel and related accessories are prolonged, and the replacement cost and the maintenance cost are saved.
Optionally, in order to facilitate the user to control the rotation of the screw rod 5, in an embodiment provided by the present application, a polygonal rotating handle 4 is disposed in the middle of the screw rod 5, and the rotating handle 4 is located between the lower screw rod sleeve 3 and the upper screw rod sleeve 6. Specifically, the rotating handle 4 is located in the middle of the screw rod 5, and is welded and fixed with the screw rod 5, or is directly processed into an integrated structural member. The rotary handle 4 is in a polygonal structure, so that a user can conveniently control the screw rod 5 to rotate by using tools such as a wrench and the like. In practical use, the outer side wall of the rotating handle 4 is preferably in an equilateral hexagon shape.
Optionally, in order to lock the screw rod 5 after the position of the screw rod 5 is adjusted, in an embodiment provided by the present application, a lower lock nut 9 in threaded connection with the screw rod 5 is disposed between the lower screw rod sleeve 3 and the rotating handle 4. The phenomenon that the tension force of the tensioning chain is influenced due to the fact that the screw rod 5 rotates due to accidental collision and the like after being adjusted in place is avoided. Optionally, an upper lock nut 8 which is in threaded connection with the screw 5 may also be arranged between the upper screw sleeve 6 and the rotary handle 4.
Furthermore, the using effect of the main transmission chain tensioning mechanism of the cut stem shredding machine is optimized, on the basis of any one of the above embodiments, the periphery of the screw rod 5 is provided with left-handed threads and right-handed threads, and the rotary handle 4 is arranged between the left-handed threads and the right-handed threads. Specifically, the middle part of the screw rod 5 is a rotating handle 4, the screw rod 5 is provided with segmented external threads, the two segments of external threads are respectively matched and connected with the lower screw rod sleeve 3 and the upper screw rod sleeve 6, and one of the two segments of external threads is a left-handed fine thread, and the other one is a right-handed fine thread. When the screw 5 rotates, the upper screw sleeve 6 and the lower screw sleeve 3 synchronously extend out or retract on the screw 5.
Alternatively, in actual use, the installation of the tension support shaft may be achieved by the tension support plate 10 and the tension rotation shaft. For example, the tensioning rotating shaft is fixed on the frame of the stem cutting machine through a bolt, and the tensioning support plate 10 is sleeved on the periphery of the tensioning rotating shaft through the circular through hole 11 and can rotate around the tensioning rotating shaft. Meanwhile, three arc-shaped holes are formed in the tensioning support plate 10, the arc-shaped holes are not shown in the drawing, the arc-shaped holes are located outside the circular through holes 11 and extend along the circumferential direction of the circular through holes 11, locking screws connected with the frame of the cut stem cutting machine are arranged in each arc-shaped hole, and the heads of the locking screws are abutted against the surface of the tensioning support plate 10, so that the tensioning support plate 10 is pressed on the frame of the cut stem cutting machine.
When the tensioning support plate 10 and the tensioning rotary shaft are arranged, in the actual operation process, three fastening screws of the tensioning support plate 10 need to be loosened, and then the lower locking nut 9 and the upper locking nut 8 of the screw rod 5 need to be loosened. The handle 4 in the middle of the screw rod 5 is rotated by a wrench, the expansion amount of the screw rod 5 is changed, the tensioning chain wheel is driven to move, the tensioning chain reaches the required tensioning force, and after the appropriate tensioning force is adjusted, the fastening screws of the lower locking nut 9, the upper locking nut 8 and the tensioning support plate 10 are screwed.
It should be noted that in order to reduce the modifications to the main structure of the stem cutting machine, the tensioning support plate 10 needs to be arranged in a place with a large space around it in order to facilitate the installation of the main drive chain tensioning mechanism of the stem cutting machine and at the same time increase the tensioning adjustment range, in addition, during the installation of the tensioning support plate 10, if the reinforcing bars of the surrounding wall plates interfere with the tensioning support plate 10, they can be properly ground, for example, 50 × 20 × 15mm size reinforcing bars can be ground.
Except that above-mentioned cut stem silk machine final drive chain straining device, the utility model also provides a cut stem silk machine, this cut stem silk machine include cut stem silk machine frame and the arbitrary one of above-mentioned cut stem silk machine final drive chain straining device, and this cut stem silk machine's tensioning chain can comparatively convenient adjust, and the adjustment degree of accuracy is higher, and in addition, parts such as tensioning back shaft can not warp the damage because of the striking. For the structure of other parts of the cut stem machine, please refer to the SQ344 cut stem machine in the prior art, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a cut stem silk machine and cut stem silk machine final drive chain straining device thereof have carried out the detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. The utility model provides a cut stalk silk machine final drive chain straining device, locates including tensioning back shaft, cover tensioning sprocket on the tensioning back shaft, its characterized in that still includes lead screw (5), with lower end threaded connection's of lead screw (5) lead screw cover (3), with the last lead screw cover (6) of the upper end threaded connection of lead screw (5), lower lead screw cover (3) articulate in be used for with cut stalk silk machine frame fixed connection's support (1) on, it is equipped with support ring (7) to go up lead screw cover (6), support ring (7) with the connection is established to tensioning back shaft cover.
2. The main transmission chain tensioning mechanism of the cut stem cutting machine according to claim 1, characterized in that the middle of the screw rod (5) is provided with a polygonal rotating handle (4), and the rotating handle (4) is positioned between the lower screw rod sleeve (3) and the upper screw rod sleeve (6).
3. The stem cutting machine main transmission chain tensioning mechanism according to claim 2, characterized in that the support ring (7) is provided at the end of the upper stem sleeve (6).
4. The main transmission chain tensioning mechanism of the stem cutting machine according to claim 3, characterized in that a lower lock nut (9) in threaded connection with the screw rod (5) is arranged between the lower screw rod sleeve (3) and the rotary handle (4).
5. The main transmission chain tensioning mechanism of the stem cutting machine according to claim 4, characterized in that an upper locking nut (8) in threaded connection with the screw rod (5) is arranged between the upper screw rod sleeve (6) and the rotary handle (4).
6. The main transmission chain tensioning mechanism of the stem cutting machine according to claim 5, characterized in that the outer side wall of the rotary handle (4) is in the shape of an equilateral hexagon.
7. The stem cutting machine main transmission chain tensioning mechanism according to any one of claims 2 to 6, characterized in that the screw rod (5) is provided with a left-hand thread and a right-hand thread on the periphery, and the rotary handle (4) is arranged between the left-hand thread and the right-hand thread.
8. A stem cutting machine characterized in that it comprises a stem cutting machine main transmission chain tensioning mechanism according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921914843.7U CN210978410U (en) | 2019-11-07 | 2019-11-07 | Cut stem silk machine and cut stem silk machine main drive chain straining device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921914843.7U CN210978410U (en) | 2019-11-07 | 2019-11-07 | Cut stem silk machine and cut stem silk machine main drive chain straining device thereof |
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| CN210978410U true CN210978410U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921914843.7U Active CN210978410U (en) | 2019-11-07 | 2019-11-07 | Cut stem silk machine and cut stem silk machine main drive chain straining device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081888A (en) * | 2020-09-18 | 2020-12-15 | 中冶东方工程技术有限公司 | Conveniently-installed guide tensioning device and belt tensioning system |
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2019
- 2019-11-07 CN CN201921914843.7U patent/CN210978410U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081888A (en) * | 2020-09-18 | 2020-12-15 | 中冶东方工程技术有限公司 | Conveniently-installed guide tensioning device and belt tensioning system |
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