Model utility content
The purpose of this utility model is to provide a kind of gearbox, to overcome deficiency of the prior art.
For achieving the above object, the utility model provides following technological scheme:
The embodiment of the present application discloses a kind of gearbox, comprise casing, and the driving shaft be installed on described casing, jack shaft and driven shaft, described driving shaft, jack shaft and driven shaft are set up in parallel successively, and described jack shaft is between described driving shaft and driven shaft, described driving shaft is arranged with the first gear, described jack shaft is arranged with the second gear and the 3rd gear, described driven shaft is arranged with the 4th gear, described first gear is meshed with the second gear, described 3rd gear is meshed with the 4th gear, described driving shaft has relative first end and the second end, the both sides sidewall that described casing is relative is respectively equipped with the first mounting hole and the second mounting hole, described first end and the second end are installed on the first mounting hole and the second mounting hole respectively by clutch shaft bearing and the second bearing, adjustment ring and the first stifle are also installed in described first mounting hole, described adjustment ring is between clutch shaft bearing and the first stifle, and described adjustment ring is affixed on the inwall of described first mounting hole, described first stifle has circular main part, the lower surface of this main part protrudes out the first step portion of annular downwards, the lower surface in described first step portion protrudes out the second step portion of annular downwards, the diameter of described main part equals the internal diameter of described first mounting hole.
Preferably, in above-mentioned gearbox, between described first stifle and the inwall of the first mounting hole, be formed with the thread surface matched.
Preferably, in above-mentioned gearbox, the end face of described first stifle has upwards protruded out the first lug boss.
Preferably, in above-mentioned gearbox, the inwall of described first mounting hole is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of described first stifle protrudes out the holding section coordinated with this first draw-in groove and the second draw-in groove.
Compared with prior art, the utility model has the advantage of: gearbox designs of the present utility model is simple, easy assembly and disassembly maintenance.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be described in detail the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, belongs to the scope of the utility model protection.
Shown in ginseng Fig. 1, gearbox comprises casing 1 and is installed on driving shaft 2, jack shaft 3 and the driven shaft 4 on described casing 1, driving shaft 2, jack shaft 3 and driven shaft 4 are set up in parallel successively, and jack shaft 3 is between driving shaft 2 and driven shaft 4, driving shaft 2 is arranged with the first gear 21, jack shaft 3 is arranged with the second gear 31 and the 3rd gear 311, driven shaft 4 is arranged with the 4th gear 41, wherein the first gear 21 is meshed with the second gear 31, and the 3rd gear 311 is meshed with the 4th gear 41.
Driving shaft 2 has relative first end 22 and the second end 23, the both sides sidewall that casing 1 is relative is respectively equipped with the first mounting hole 11 and the second mounting hole 12, first end 22 and the second end 23 are installed on the first mounting hole 11 and the second mounting hole 12 respectively by clutch shaft bearing 25 and the second bearing 26.
Shown in ginseng Fig. 2, adjustment ring 27 and the first stifle 28 are also installed in first mounting hole 11.Adjustment ring 27 is between clutch shaft bearing 25 and the first stifle 28, and adjustment ring 27 is affixed on the inwall of the first mounting hole 11.First stifle 28 has circular main part 281, the lower surface of main part 281 protrudes out the first step portion 282 of annular downwards, the lower surface in first step portion 282 protrudes out the second step portion 283 of annular downwards, and wherein, the diameter of main part 281 equals the internal diameter of the first mounting hole.The thread surface matched is formed between first stifle 28 with the inwall of the first mounting hole 11.The end face of the first stifle 28 has upwards protruded out the first lug boss 284.
In a second embodiment, the inwall of the first mounting hole 11 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the first stifle 28 protrudes out the holding section 285 coordinated with this first draw-in groove and the second draw-in groove.
Shown in ginseng Fig. 3, the outside that the second stifle 29, second stifle 29 is sheathed on driving shaft 2 is also installed in second mounting hole 12.The edge of the second stifle 29 upper surface upwards protrudes out annular resisting part 291, second stifle 29 and is formed with between the inwall of the second mounting hole 12 thread surface matched.Seal ring 292 is provided with, the recessed groove 293 being formed with an annular of surface of contact of the second stifle 29 and driving shaft 2 between second stifle 29 and driving shaft 2.
In other embodiments, the inwall of the second mounting hole 12 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the second stifle 29 protrudes out the holding section 294 coordinated with this first draw-in groove and the second draw-in groove.
Jack shaft 3 has relative first end 32 and the second end 33, the both sides sidewall that casing 1 is relative is respectively equipped with the first mounting hole 13 and the second mounting hole 14, first end 32 and the second end 33 are installed on the first mounting hole 13 and the second mounting hole 14 respectively by the 3rd bearing 34 and the 4th bearing 35.
Shown in ginseng Fig. 4, door 36, adjustment screw 37, the 3rd stifle 38 are also installed in first mounting hole 13.The edge of the lower surface of door 36 protrudes out the resisting part 361 of annular downwards, and the end of resisting part 361 and the side edge of the 3rd bearing 34 are touched.What the middle part of the 3rd stifle 38 offered mounting hole the 381, three stifle 38 is formed with between the inwall of the first mounting hole 13 thread surface matched, and forms a clearance space 382 between the lower surface of the 3rd stifle 38 and the end face of door 36.Be provided with an adjustment screw 37 in mounting hole 381, be formed with the thread surface matched between adjustment screw 37 and the inwall of mounting hole 381, the bottom of this adjustment screw 37 contacts with the end face of door 36.Fixed plate, packing ring and bolt is also fixed with between adjustment screw 37 and the top of the 3rd stifle 38.
In other embodiments, the inwall of the first mounting hole 13 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the 3rd stifle 38 protrudes out the holding section 384 coordinated with this first draw-in groove and the second draw-in groove.
Shown in ginseng Fig. 5, the edge being also provided with the upper surface of the 4th stifle the 141, four stifle 141 in the second mounting hole 14 upwards protrudes out the resisting part 142 of annular, and the top of this resisting part 142 contacts with described 4th bearing 35.The thread surface matched is formed between the inwall of the second mounting hole 14 of the 4th stifle 141.The lower surface of the 4th stifle 141 has protruded out the second lug boss 143 downwards.Jack shaft 3 is also arranged with spacer sleeve 144, and spacer sleeve 144 is formed between the 4th bearing 35 and the second gear 31.
In other embodiments, the inwall of the second mounting hole 14 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the 4th stifle 141 protrudes out the holding section 145 coordinated with this first draw-in groove and the second draw-in groove.
Driven shaft 4 has relative first end 42 and the second end 43, the both sides sidewall that casing 1 is relative is respectively equipped with the first mounting hole 15 and the second mounting hole 16, first end 42 and the second end 43 are installed on the first mounting hole 15 and the second mounting hole 16 respectively by the 5th bearing 44 and the 6th bearing 45.
Shown in ginseng Fig. 6, be also provided with bearing housing 46 in the first mounting hole 15, be formed with the thread surface matched between bearing housing 46 with the inwall of the first mounting hole 15, the 5th bearing 44 is installed in bearing housing 46.Also be provided with door 47 in bearing housing 46, the lower surface edge of door 47 protrudes out the resisting part 471 of annular downwards, and the side edge of this resisting part 471 and the 5th bearing 44 is touched.5th stifle 48 is also installed in first mounting hole 15, the middle part of the 5th stifle 48 offers a mounting hole 481, be formed with the thread surface matched between 5th stifle 48 with the surface of contact of the first mounting hole 15, between the 5th stifle 48 and the end face of door 47, be also formed with a clearance space 482.Be provided with an adjustment screw 49 in mounting hole 481, be formed with the thread surface matched between adjustment screw 49 and the inwall of mounting hole 481, the bottom of this adjustment screw 49 contacts with the end face of door 47.Fixed plate, packing ring and bolt is also fixed with between adjustment screw 49 and the top of the 5th stifle 48.The lower surface also recessed groove 483 being formed with ring of the 5th stifle 48.
In other embodiments, the inwall of the first mounting hole 15 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the 5th stifle 48 and bearing housing 46 protrudes out the holding section 484 and 461 coordinated with this first draw-in groove and the second draw-in groove respectively.
Shown in ginseng Fig. 7, the outside that the 6th stifle the 161, six stifle 161 is sheathed on driven shaft 4 is also installed in second mounting hole 16.The edge of the 6th stifle 161 upper surface upwards protrudes out annular resisting part the 162, six stifle 161 and is formed with between the inwall of the second mounting hole 16 thread surface matched.Seal ring 163 is provided with, the recessed groove 164 being formed with an annular of surface of contact of the 6th stifle 161 and driven shaft 4 between 6th stifle 161 and driven shaft 4.The outside of driven shaft 4 is also arranged with spacer sleeve 165, and spacer sleeve 165 is formed between the 4th gear and the 6th bearing.The surface also recessed groove 166 being formed with annular of the second mounting hole 16 and the 6th bearing touch, is provided with seal ring in this groove 166.
In other embodiments, the inwall of the second mounting hole 16 is formed with the first vertically recessed draw-in groove and is communicated in second draw-in groove of annular of the recessed formation of the first draw-in groove end, and the sidewall of the 6th stifle 161 protrudes out the holding section 167 coordinated with this first draw-in groove and the second draw-in groove.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the embodiment of the application; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the application.