Tensioning type chain wheel mechanism and roller transmission device
Technical Field
The patent relates to the technical field of roll shaft transmission equipment, in particular to a tensioning type chain wheel mechanism and a roller transmission device comprising the tensioning type chain wheel mechanism.
Background
In the prior art, the roller of the annealing kiln for glass production is in a helical gear transmission state all the time, once the main transmission helical gear is worn and cannot rotate, the surface of the glass is scratched, the roller breaks the skin, the roller cannot be quickly replaced in the kiln, and the best method is to shorten the non-rotating time and reduce the loss. And after the main transmission bevel gear is worn, the on-line maintenance difficulty is high, the personnel maintenance environment is bad, and the long-time batch loss is caused.
Disclosure of Invention
In view of the above, in order to solve the problems in the prior art, the invention provides a tension type chain wheel mechanism, which is applied to a roller of an annealing kiln and can effectively ensure synchronous rotation of a chain wheel and the roller.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a tight sprocket mechanism rises, includes sprocket, the expansion overcoat and the expansion endotheca of mutually supporting, and the locking bolt and the nut of mutually supporting, be provided with the locking endotheca on the sprocket, the both ends of expansion overcoat are connected with locking endotheca and expansion endotheca respectively, the locking bolt runs through expansion endotheca, expansion overcoat, sprocket in proper order back with the nut locking.
The expansion jacket is locked through the expansion inner sleeve and the locking inner sleeve, the chain wheel, the expansion outer sleeve and the expansion inner sleeve form a whole through the locking bolt and the nut, and after the expansion outer sleeve is installed in an inner hole of a roll shaft, the expansion outer sleeve can expand and tighten in the inner hole of the roll shaft, so that the roller and the chain wheel can synchronously rotate, and the connection effectiveness of the roller and the chain wheel is ensured.
Preferably, a locking block is arranged on the expansion outer sleeve, a locking groove matched with the locking block is formed in the locking inner sleeve, and the locking block is positioned in the locking groove after the tension type chain wheel mechanism is installed. Through the cooperation of latch segment and locking groove for the expansion shell is more fastened with the connection of sprocket.
More preferably, the locking block is disposed on an inner wall of the expansion jacket, and the locking groove is formed on an outer surface of the locking inner sleeve, that is, the locking inner sleeve and the expansion inner sleeve are both mounted inside the expansion jacket. The locking blocks are disposed along the extension of the outer expansion jacket, in some embodiments, the locking blocks are half the length of the outer expansion jacket, and the locking blocks are disposed at a length greater than or equal to the length of the locking grooves, so that the connection between the outer expansion jacket and the inner locking jacket is more secure.
Preferably, the locking inner sleeve and the expansion inner sleeve are in a truncated cone shape, the diameters of one sides of the locking inner sleeve and the expansion inner sleeve, which are close to the expansion outer sleeve, are smaller than the diameter of one side, which is far away from the expansion outer sleeve, and the height of the inner wall of the expansion outer sleeve is gradually reduced from the middle to two sides along the axial direction of the inner wall of the expansion outer sleeve. The small heads of the locking inner sleeve and the expansion inner sleeve face the expansion outer sleeve and are contained in the expansion outer sleeve, and the locking inner sleeve and the expansion inner sleeve are plugged into the expansion outer sleeve, so that the expansion outer sleeve can expand outwards, and effective connection between the chain wheel and the roller is ensured.
More preferably, the inclination angle of the outer wall of the expansion inner sleeve is 3-10 degrees, the inclination angle of the outer wall of the locking inner sleeve is 3-10 degrees, and the inclination angle of the inner wall of the expansion outer sleeve is larger than or equal to the inclination angle of the expansion inner sleeve or the locking inner sleeve. In some embodiments of the present invention, it is preferred that the outer wall of the expansion shell be inclined at 5 °, the outer wall of the locking shell be inclined at 5 °, and the inner wall of the expansion shell be inclined at 5 °.
Preferably, an expansion groove is formed in the outer wall of the expansion jacket, and the expansion groove extends along the extending direction of the expansion jacket. The expansion groove is used for increasing the friction force between the expansion jacket and the roll shaft, and the bulge matched with the expansion groove can be arranged at the corresponding position on the roll shaft, so that the friction force between the expansion jacket and the roll is further increased, the connection between the expansion jacket and the roll is effectively ensured, and the synchronous rotation between the chain wheel and the roll is ensured.
More preferably, the expansion slots are evenly distributed on the outer wall of the expansion shell.
Preferably, the expansion jacket is provided with an expansion port, the expansion port penetrates through the wall of the expansion jacket, and the expansion port is arranged along the extending direction of the expansion jacket. By arranging the expansion port, the expansion outer sleeve can be effectively expanded when the locking inner sleeve and the expansion inner sleeve are plugged into the expansion outer sleeve, and thus the expansion outer sleeve is effectively connected with the roll shaft.
Preferably, the sprocket is provided with an annular groove along the periphery of the locking inner sleeve, and one end of the expansion outer sleeve is accommodated in the annular groove. One end of the expansion jacket is abutted against the annular groove through the annular groove, so that the connection between the expansion jacket and the chain wheel is enhanced, the volume of the tension type chain wheel mechanism can be effectively reduced, and the annular groove can be used for being connected with the end part of the roll shaft.
The invention also provides a roller transmission device, which comprises a roller, a bevel gear mechanism arranged at one end of the roller shaft and the tension type chain wheel mechanism arranged at the other end of the roller shaft. By installing the tension sprocket mechanism in the inner hole of the roll shaft, the effective connection between the sprocket and the roll shaft can be ensured.
Compared with the prior art, the tension type chain wheel mechanism has the advantages that the structural design is reasonable, the expansion outer sleeve is locked through the expansion inner sleeve and the locking inner sleeve, the chain wheel, the expansion outer sleeve and the expansion inner sleeve form a whole through the locking bolt and the nut, after the tension type chain wheel mechanism is installed in an inner hole of a roll shaft, the expansion outer sleeve can expand and tension the inner hole of the roll shaft, so that the roll shaft and the chain wheel can synchronously rotate, the connection effectiveness of the roll shaft and the chain wheel is ensured, the maintenance time can be effectively reduced, the generation of defective products is reduced, and meanwhile, the damage of the environment to maintenance personnel is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a partial exploded view of a roller drive in accordance with a preferred embodiment of the present invention;
FIG. 2 is a perspective view of a roller drive in accordance with a preferred embodiment of the present invention;
FIG. 3 is a perspective view of a tension sprocket mechanism in accordance with a preferred embodiment of the present invention;
FIG. 4 is an exploded view of a tension sprocket mechanism in accordance with a preferred embodiment of the present invention;
FIG. 5 is a perspective view of an inflatable jacket in accordance with a preferred embodiment of the present invention;
FIG. 6 is a side view of an inflatable jacket in accordance with a preferred embodiment of the present invention;
FIG. 7 is a cross-sectional view of B-B of FIG. 6;
FIG. 8 is a side view of an inner expansion sleeve in accordance with a preferred embodiment of the present invention;
The chain wheel comprises a tension type chain wheel mechanism-1, a chain wheel-2, a locking inner sleeve-21, a locking groove-22, an annular groove-23, an expansion outer sleeve-3, a locking block-31, an expansion groove-32, an expansion port-33, an expansion inner sleeve-4, a locking bolt-5, a nut-6, a roller-7, a bevel gear mechanism-8, an expansion inclined plane-9 and a bolt hole-10.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Referring to fig. 1 to 8, the roller transmission device of the present embodiment includes a roller 7, a helical gear mechanism 8 provided at one end of the roller shaft, and a tension sprocket mechanism 1 provided at the other end of the roller shaft. The tension type chain wheel mechanism 1 is arranged in the inner hole of the roll shaft, so that the chain wheel 2 is effectively connected with the roll shaft, and synchronous rotation between the roller 7 and the chain wheel 2 is ensured.
The tension type chain wheel mechanism 1 of the embodiment comprises a chain wheel 2, an expansion outer sleeve 3, an expansion inner sleeve 4, a locking bolt 5 and a nut 6, wherein the expansion outer sleeve 3 and the expansion inner sleeve 4 are matched with each other, the locking inner sleeve 21 is arranged on the chain wheel 2, two end parts of the expansion outer sleeve 3 are respectively connected with the locking inner sleeve 21 and the expansion inner sleeve 4, the locking inner sleeve 21 and the expansion inner sleeve 4 are both arranged in the expansion outer sleeve 3, bolt holes 10 are formed in the chain wheel 2 and the expansion inner sleeve 4, and the locking bolt 5 sequentially penetrates through the expansion inner sleeve 4, the expansion outer sleeve 3 and the chain wheel 2 and then is locked with the nut 6.
The inner wall of the expansion jacket 3 is provided with a locking block 31, the outer surface of the locking inner sleeve 21 is provided with a locking groove 22 matched with the locking block 31, and after the tension type chain wheel mechanism 1 is installed, the locking block 31 is positioned in the locking groove 22. The locking piece 31 is provided along the extension direction of the expansion shell 3, and in this embodiment, the length of the locking piece 31 is half the length of the expansion shell 3, and the length of the locking piece 31 is equal to the length of the locking groove 22. The connection of the expansion jacket 3 with the sprocket 2 is more fastened and secured by the cooperation of the locking blocks 31 and the locking grooves 22.
As shown in fig. 1 and fig. 4 to 8, the locking inner sleeve 21 and the expansion inner sleeve 4 are both in a truncated cone shape, and the diameters of the sides of the locking inner sleeve 21 and the expansion inner sleeve 4 close to the expansion outer sleeve 3 are smaller than the diameters of the sides far away from the expansion outer sleeve 3, so that the height of the inner wall of the expansion outer sleeve 3 is gradually reduced from the middle to the two sides along the axial direction. I.e. the small ends of the locking inner sleeve 21 and the expansion inner sleeve 4 face the expansion outer sleeve 3 and are accommodated in the expansion outer sleeve 3, the expansion outer sleeve 3 can be expanded outwards by inserting the locking inner sleeve 21 and the expansion inner sleeve 4 into the expansion outer sleeve 3, so that the effective connection between the chain wheel 2 and the roll shaft is ensured.
In this embodiment, the outer wall of the expansion inner sleeve 4 is preferably inclined at 5 °, the outer wall of the locking inner sleeve 21 is inclined at 5 °, and the inner wall of the expansion outer sleeve 3 is inclined at 5 °. The outer surface of the expansion inner sleeve 4, the outer surface of the locking inner sleeve 21 and the inner surface of the expansion outer sleeve 3 are inclined planes, so that the expansion inner sleeve 21 and the expansion inner sleeve 4 are matched with each other to form an expansion inclined plane 9, the expansion effect is achieved by the matching of the expansion inclined plane 9 when the locking inner sleeve 21 and the expansion inner sleeve 4 are plugged into the expansion outer sleeve 3, the expansion outer sleeve 3 is expanded outwards by a proper amount, and the sprocket 2 is fastened and connected with a roll shaft, so that synchronous rotation is realized.
As shown in fig. 3 to 7, the outer wall of the expansion shell 3 is provided with expansion grooves 32 extending along the extending direction of the expansion shell 3, and the expansion grooves 32 are uniformly distributed on the outer wall of the expansion shell 3. The expansion groove 32 is used for increasing the friction force between the expansion jacket 3 and the roll shaft, and the corresponding position on the roll shaft can be provided with a bulge matched with the expansion groove 32, so that the friction force between the expansion jacket 3 and the roll shaft is further increased, the connection between the expansion jacket 3 and the roll shaft is effectively ensured, and the synchronous rotation between the chain wheel 2 and the roll shaft is ensured. The expansion groove 32 in this embodiment is a rectangular groove, and may be formed in other shapes in other embodiments.
In order to better obtain the expansion effect, in this embodiment, the expansion port 33 is formed in the expansion shell 3, the expansion port 33 penetrates through the wall of the expansion shell 3, and the expansion port 33 is formed along the extending direction of the expansion shell 3. By providing the expansion port 33, when the locking inner sleeve 21 and the expansion inner sleeve 4 are plugged into the expansion outer sleeve 3, the expansion inclined surfaces 9 are matched with each other, and the expansion outer sleeve 3 can be effectively expanded, so that the expansion outer sleeve is effectively connected with a roll shaft.
The sprocket 2 in this embodiment is provided with an annular groove 23 along the periphery of the lock inner sleeve 21, and one end of the expansion outer sleeve 3 is accommodated in the annular groove 23. One end of the expansion jacket 3 is abutted against the annular groove 23 by the annular groove 23, so that on one hand, the connection between the expansion jacket 3 and the chain wheel 2 is enhanced, the volume of the tension type chain wheel mechanism 1 can be effectively reduced, and on the other hand, the annular groove 23 can be used for being tightly connected with the end part of a roll shaft.
In a specific implementation application, one way is to install the tension type chain wheel mechanism and the chain matched with the chain wheel on one end of all the roll shafts in advance, so that even if one or some of the bevel wheel mechanisms of the rolls cannot work, all the rolls still synchronously rotate, and no defective products are generated. In another mode, after a certain roller has a bevel gear fault, the tension type chain wheel mechanism is additionally arranged on one end of the fault roller and one end of the front or rear normal roller of the fault roller, a chain is arranged between the chain wheels of the fault roller and the normal roller, and the fault roller and the normal roller can synchronously rotate through the chain and the tension type chain wheel mechanism.
In the prior art, after the failure of the driving bevel gear, the roller cannot normally rotate, the lower surface of the glass is rubbed to generate defective products, the environment temperature is high, the time consumption for disassembling and maintaining the gear is long (at least 2 h), and the working environment of maintenance personnel is harsh. The tension type chain wheel mechanism disclosed by the invention has the advantages that the structural design is reasonable, the expansion outer sleeve is locked through the expansion inner sleeve and the locking inner sleeve, the chain wheel, the expansion outer sleeve and the expansion inner sleeve are formed into a whole through the locking bolt and the nut, and after the tension type chain wheel mechanism is installed in a roller, the expansion outer sleeve can expand and tension in the inner hole of the roller shaft, so that the roller shaft and the chain wheel can synchronously rotate, the connection effectiveness of the roller shaft and the chain wheel is ensured, the maintenance time can be effectively shortened (the shortest time can be shortened to be within 5 min), the generation of defective products is reduced, and meanwhile, the damage of the environment to maintenance personnel is avoided. The tension type chain wheel mechanism is convenient to install, can be used as long as the roller shaft has an inner hole, and achieves quick installation and quick start.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.