CN202065420U - Clutch type worm gear speed reducer - Google Patents
Clutch type worm gear speed reducer Download PDFInfo
- Publication number
- CN202065420U CN202065420U CN2011201617119U CN201120161711U CN202065420U CN 202065420 U CN202065420 U CN 202065420U CN 2011201617119 U CN2011201617119 U CN 2011201617119U CN 201120161711 U CN201120161711 U CN 201120161711U CN 202065420 U CN202065420 U CN 202065420U
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- Prior art keywords
- worm
- output shaft
- casing
- worm gear
- clutch
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Abstract
The utility model relates to a worm gear speed reducer, in particular to a clutch type worm gear speed reducer, which comprises an output shaft, a box body, a worm which is arranged in the box body and used for inputting torque, and a worm gear which is arranged in the box body and matched with the worm, wherein the box body is internally provided with a clutch which is used for controlling the clutch of the worm gear and the output shaft. The clutch type worm gear speed reducer with a clutch function is used for solving the problems that the connection between power output devices and power reception devices is tedious, strenuous and not compact in structure as clutch mechanisms need to be additionally arranged if the power reception devices need to be stopped during the running of the power input devices since the existing speed reducers do not have the clutch function.
Description
Technical field
The utility model relates to worm reduction gear, relates in particular to a kind of clutch type worm reduction gear.
Background technique
Speed reducer is passed on mechanism as a kind of power, utilizes the speed discrepancy of gear, and the winding number of motor (motor) is decelerated to desired winding number, and to bigger output torque.Be used for the mechanism of transferring power and motion at present, the application area of speed reducer is quite extensive.Almost in the transmission system of various machinery, can see its trace, boats and ships, automobile, locomotive from the traffic tool, heavy facility for building, machining machine and tool that mechanical technology is used and automated production equipment, common household electrical appliances in the daily life, clock and watch or the like. it uses the transmission work from big power, to little load, accurate angle transmission can be seen the application of speed reducer, and on commercial Application, speed reducer has deceleration and increases the torque function.Therefore be widely used in the conversion equipment of speed and moment of torsion.And the worm-gear speed reducer in the speed reducer is owing to have reverse auto-lock function, bigger reduction speed ratio can be arranged, input shaft and output shaft be not on same axis, also not at grade, characteristics such as cost is low, so requiring to have auto-lock function, be widely used in the speed of high reduction speed ratio and the goes through torque conversion equipment.
In China Patent No. is ZL2007201055416, name is called and discloses a kind of utilize worm and wheel to match speed reducer that incompatible realization slows down in the patent documentation of " worm-gear speed reducer ", this speed reducer mainly comprises casing, is positioned at casing worm gear and worm screw, moment of torsion is imported through worm screw, worm screw drives worm gear, the output shaft output torque that worm gear drives is attached thereto.But the worm reduction gear in this patent has following deficiency: as long as worm screw is rotated, then speed reducer will output torque, promptly this worm reduction gear does not have clutch function yet, cause if under the situation of power input device running, the mechanism's (hereinafter to be referred as power reception unit) that is driven by the power input device is stopped, then need to install in addition clutch mechanism, loaded down with trivial details when therefore output power device and power reception unit link together, effort, overall structure are not compact.
Summary of the invention
The utility model provides a kind of clutch type worm reduction gear with clutch function, solved because of existing speed reducer and do not possessed clutch function, cause if under the situation of power input device running, the power reception unit is stopped, then need clutch mechanism is installed in addition loaded down with trivial details when causing output power device and power reception unit to link together, effort, the problem that structure is not compact.
Above technical problem solves by following technical proposal: a kind of clutch type worm reduction gear, comprise output shaft, casing, be built in the worm screw that is used for input torque of casing and be built in the worm gear that matches with worm screw of casing, be provided with clutch between described worm gear and the described output shaft, described clutch is positioned at described casing.During use, power input device such as motor etc. is connected with worm screw, and worm screw drives worm gear and rotates, when clutch closes then worm gear can drive output shaft and rotate together, when clutch separated, then worm gear rotated and output shaft can not rotate together, power output stopping output torque.
As preferably, described worm gear is provided with axis hole, described output shaft is located in the described axis hole, be Spielpassung between described worm gear and the described output shaft, described clutch comprise sheathed and slip the platen on the described output shaft, be used to pass platen fork, be arranged on the active convex body on the platen and be arranged on the driven convex body that matches with the active convex body on the end face of described platen of described worm gear.When needs will be from the moment of torsion of worm screw input when output shaft be exported, make platen axially drawing close so that the driven convex body on the end face of active convex body on the platen and worm gear meshes together by shift fork along output shaft to worm gear, the worm gear drives platen rotates, and platen drives the output shaft rotation and gets final product; When not needing will be from the moment of torsion of worm screw input when output shaft be exported, by shift fork make platen along output shaft axially away from worm gear so that the driven convex body disengagement on the end face of the active convex body on the platen and worm gear, worm gear dallies on output shaft, and platen and output shaft stop operating.
As preferably, the side of described platen is provided with along the annular groove of the extending circumferentially of platen, described fork comprises be connected to each other together two drive links of an end, described two drive links, and wherein one end is built in the described chute, another root is located on the sidewall of described casing.Make platen and worm gear near being by shift fork: when in being pulled outwardly two drive links, being located in that root on the sidewall of casing with the method for separating, then should with drive link drive another drive link go to make platen along output shaft axially away from worm gear, when in inwardly pushing away two drive links, being located in that root on the sidewall of casing, then should with drive link drive another root drive link go to make platen along output shaft axially near worm gear.
As preferably, described two drive links are vertical mutually, and described two drive links are threaded togather.Vertical mutually, laborsaving during pulling, be threaded, convenient when shift fork is installed.
As preferably, be located in the top that root on the sidewall of described casing is positioned at described worm gear and worm screw in described two drive links.Do not need between drive link and casing, Sealing to be set, can guarantee the normal lubricated of worm gear and worm screw yet, can make gear oil can not reduce number of components again, reduce production costs from casing excessive with joint drive link.
As preferably, the two ends of described worm screw all are provided with the worm screw spring bearing, and the two ends of described worm screw are connected on the tank wall of described casing by described worm screw spring bearing.The worm screw spring bearing is set, and worm screw rotates easily, not easy to wear, and the worm screw two ends all are supported on the casing, and are steady when worm screw is rotated.
As preferably, on two relative tank walls of described casing to being provided with the installation through hole, described installation through hole top cover labyrinth is provided with cover plate, described cover plate is provided with and passes the hole, the two ends of described worm screw pass from described passing in the hole respectively, described worm screw spring bearing is installed in the described installation through hole, is provided with oil sealing between described cover plate and the described worm screw.All stretch out from casing at the two ends that are designed to worm screw, convenient when being installed to worm screw on the casing, and the purpose of design oil sealing is that gear oil can not spilt from the joint of cover plate and worm screw.
As preferably, described output shaft runs through two relative sidewalls of described casing, the joint of described output shaft and described casing is provided with the output shaft spring bearing, is arranged with the back-up ring that the end face that is used to prevent described worm gear is connected to the wall of described casing on the described output shaft.Be designed to two relative sidewalls that output shaft runs through described casing, convenient when being installed to output shaft on the casing, it is steady when output shaft rotates, the output shaft spring bearing is set, output shaft rotates easily, not easy to wear, back-up ring is set, and the end of worm gear can not abut on the box body wall, can not produce wearing and tearing to box body wall when worm gear rotates.
As preferably, described output shaft spring bearing comprises the far-end bearing, and an end of described back-up ring is connected on the end face of described worm gear, and the other end of described back-up ring is connected on the inner ring of described far-end bearing." away from bearing " be meant in the output shaft spring bearing be positioned at output shaft away from the end of platen place that, in the rotation process, when worm gear and output shaft rotate together, worm gear, output shaft, bearing inner race and back-up ring rotate together synchronously, can not produce wearing and tearing, when worm gear rotates and output shaft when not rotating the end face of only can wear and tear worm gear, back-up ring and bearing inner race, not fragile, convenient when safeguarding, maintenance cost is low.
As preferably, the hole wall of described axis hole is provided with along the annular oil groove of the extending circumferentially of described hole wall, and described oil groove is connected with the end face of described worm gear.Make gear oil enter oil groove from the end face of worm gear the surface of contact of worm gear and output shaft is lubricated, not easy to wear between output shaft and the worm gear, rotating effect is good.
The utlity model has following advantage, novel structure, when being used to connect power input device and power reception unit, convenient, laborsaving in the time of making compact overall structure, general assembly.
Description of drawings
Fig. 1 looks schematic representation for master of the present utility model;
Fig. 2 is that the A of Fig. 1 is to schematic representation.
Among the figure: output shaft 1, output shaft supported 11, the second seal rings 12, retaining T-Ring 13, casing 2, main cavity 21, sidewall 22, the first seal rings 23, worm gear 3, axis hole 31, oil groove 32, intercommunicating pore 33, back-up ring 34, platen 41, fork 42, active convex body 43, driven convex body 44, chute 45, the first drive links 46, the second drive links 47, worm screw 5, worm screw spring bearing 51 is installed through hole 52, cover plate 53 passes hole 54, oil sealing 55, bolt 56, oil drainage hole 6, plug 61, oiling port lid 62, oil level glass 63, hexagon socket head cap screw 64.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
A kind of clutch type worm reduction gear, comprise output shaft 1 and casing 2, casing 2 comprise the left and right sides be provided with on the main cavity 21 of opening and the opening that lid is located at the main cavity left and right sides about two sidewalls 22, be provided with first seal ring 23 between main cavity 21 and the sidewall 22, two sidewalls 22 about output shaft 1 runs through, output shaft 1 is provided with output shaft spring bearing 11 with the joint of sidewall 22, be provided with second seal ring 12 between output shaft 1 and the sidewall 22, in casing 2, be provided with worm gear 3, worm gear 3 is provided with axis hole 31, output shaft 1 is located in the axis hole 31 on the worm gear 3, be Spielpassung between output shaft 1 and the axis hole 31, the hole wall of axis hole 31 is provided with the annular oil groove 32 along the extending circumferentially of hole wall, oil groove 32 is connected by the left side wall of intercommunicating pore 33 with worm gear 3, on output shaft 1, be arranged with back-up ring 34, the right-hand member of back-up ring 34 is connected on the left side of worm gear 3, it is to be positioned in the output shaft spring bearing 11 on the inner ring of that bearing of left end of output shaft that the left end of back-up ring 34 is connected to the far-end bearing, in casing 2, be provided with clutch, clutch comprises sheathed and slips platen 41 on output shaft 1, be used to pass the fork 42 of platen, be arranged on the active convex body 43 on the left side of platen 41 and be arranged on driven convex body 44 on the right side of worm gear 3, platen 41 is positioned at the right side of worm gear 3, initiatively convex body 43 is structure as a whole with platen 41, driven convex body 44 is structure as a whole with worm gear 3, on output shaft 1, be provided with retaining T-Ring 13, retaining T-Ring 13 is structure as a whole with output shaft 1, the side of platen 41 is provided with the annular groove 45 along the extending circumferentially of platen, fork 42 comprises horizontally disposed first drive link 46 and second drive link 47 that vertically is provided with, the left end of first drive link 46 is threaded on the upper end of second drive link 47, the underpart of second drive link 47 is built in the chute 45, first drive link 46 is located on the right side wall of main cavity 21, first drive link 46 is positioned at the top of worm gear 3, be provided with worm screw 5 in the casing 2, worm screw 5 is positioned at the below of worm gear 3, worm screw 5 meshes together with worm gear 3, below the right side of main cavity 21, be provided with oil drainage hole 6, the gear oil in the casing 2 is discharged in acting as of oil drainage hole, stop up on the oil drainage hole 6 plug 61 is arranged, plug 61 is threaded on the oil drainage hole 6, the roof of main cavity 21 is provided with tank filler sleeve, tank filler sleeve is used for filling gear oil in casing 2, is stamped tank filler sleeve lid 62 on the tank filler sleeve.
Referring to Fig. 2, front upper place at the right side wall of main cavity 21 is provided with oil level glass 63, whether observe the oil mass of the gear oil in the casings 2 by oil level glass 63 enough and to have deny dirty rotten, sidewall 22 is fastened on the main cavity 21 by four hexagon socket head cap screws 64, the two ends of worm screw 5 all are socketed with worm screw spring bearing 51, to being provided with through hole 52 is installed on two walls about main cavity 21, through hole 52 top cover labyrinths are installed are provided with cover plate 53, cover plate 53 is fastened on the main cavity by bolt 56, cover plate 53 is provided with and passes hole 54, the two ends of worm screw 5 hole 54 that passes from the two cover plates of the left and right sides respectively pass, worm screw spring bearing 51 is installed in to be installed in the through hole 52, is provided with oil sealing 55 between cover plate 53 and the worm screw 5.
During use, referring to Fig. 1, rotary worm 5, worm screw 5 drive worm gear 3 rotations, push away first drive link 46 left, a first drive link left side pushes away second drive link 46, second drive link, 46 left pushing dishes 41, initiatively convex body 43 meshes together with driven convex body 44, thereby makes worm gear 3 drive platen 41 rotations, platen 41 drives output shaft 1 rotation, output shaft 1 outputting power; Otherwise, draw first drive link, 46, the first drive link right sides to draw second drive link 46 to the right, second drive link, 46 right tension and compression dishes 41, initiatively convex body 43 is thrown off with driven convex body 44, and platen 41 stops the rotation, output shaft 1 stops the rotation, thereby worm gear 3 is dallied on output shaft 1, and output shaft 1 is outputting power not.
Claims (10)
1. clutch type worm reduction gear, comprise output shaft, casing, be built in the worm screw that is used for input torque of casing and be built in the worm gear that matches with worm screw of casing, it is characterized in that be provided with clutch between described worm gear and the described output shaft, described clutch is positioned at described casing.
2. clutch type worm reduction gear according to claim 1, it is characterized in that, described worm gear is provided with axis hole, described output shaft is located in the described axis hole, be Spielpassung between described worm gear and the described output shaft, described clutch comprise sheathed and slip the platen on the described output shaft, be used to pass platen fork, be arranged on the active convex body on the platen and be arranged on the driven convex body that matches with the active convex body on the end face of described platen of described worm gear.
3. clutch type worm reduction gear according to claim 2, it is characterized in that, the side of described platen is provided with along the annular groove of the extending circumferentially of platen, described fork comprises be connected to each other together two drive links of an end, described two drive links, wherein one end is built in the described chute, another root is located on the sidewall of described casing.
4. clutch type worm reduction gear according to claim 3 is characterized in that, described two drive links are vertical mutually, and described two drive links are threaded togather.
5. clutch type worm reduction gear according to claim 3 is characterized in that, is located in the top that root on the sidewall of described casing is positioned at described worm gear and worm screw in described two drive links.
6. according to claim 1 or 2 or 3 or 4 or 5 described clutch type worm reduction gears, it is characterized in that the two ends of described worm screw all are provided with the worm screw spring bearing, the two ends of described worm screw are connected on the tank wall of described casing by described worm screw spring bearing.
7. clutch type worm reduction gear according to claim 6, it is characterized in that, on two relative tank walls of described casing to being provided with the installation through hole, described installation through hole top cover labyrinth is provided with cover plate, described cover plate is provided with and passes the hole, the two ends of described worm screw pass from described passing in the hole respectively, and described worm screw spring bearing is installed in the described installation through hole, is provided with oil sealing between described cover plate and the described worm screw.
8. according to claim 2 or 3 or 4 or 5 described clutch type worm reduction gears, it is characterized in that, described output shaft runs through two relative sidewalls of described casing, the joint of described output shaft and described casing is provided with the output shaft spring bearing, is arranged with the back-up ring that the end face that is used to prevent described worm gear is connected to the wall of described casing on the described output shaft.
9. clutch type worm reduction gear according to claim 8, it is characterized in that, described output shaft spring bearing comprises the far-end bearing, and an end of described back-up ring is connected on the end face of described worm gear, and the other end of described back-up ring is connected on the inner ring of described far-end bearing.
10. clutch type worm reduction gear according to claim 9 is characterized in that, the hole wall of described axis hole is provided with along the annular oil groove of the extending circumferentially of described hole wall, and described oil groove is connected with the end face of described worm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201617119U CN202065420U (en) | 2011-05-20 | 2011-05-20 | Clutch type worm gear speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201617119U CN202065420U (en) | 2011-05-20 | 2011-05-20 | Clutch type worm gear speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065420U true CN202065420U (en) | 2011-12-07 |
Family
ID=45059283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201617119U Expired - Lifetime CN202065420U (en) | 2011-05-20 | 2011-05-20 | Clutch type worm gear speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065420U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869637A (en) * | 2018-08-28 | 2018-11-23 | 澳洋集团有限公司 | Worm gear reducer for weaving loom |
| CN110374953A (en) * | 2019-06-28 | 2019-10-25 | 常州中信博新能源科技有限公司 | Photovoltaic bracket rotary reducer |
-
2011
- 2011-05-20 CN CN2011201617119U patent/CN202065420U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869637A (en) * | 2018-08-28 | 2018-11-23 | 澳洋集团有限公司 | Worm gear reducer for weaving loom |
| CN110374953A (en) * | 2019-06-28 | 2019-10-25 | 常州中信博新能源科技有限公司 | Photovoltaic bracket rotary reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |