CN102767592A - Engagement type gear reducer with small tooth number difference - Google Patents
Engagement type gear reducer with small tooth number difference Download PDFInfo
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- CN102767592A CN102767592A CN2012102527208A CN201210252720A CN102767592A CN 102767592 A CN102767592 A CN 102767592A CN 2012102527208 A CN2012102527208 A CN 2012102527208A CN 201210252720 A CN201210252720 A CN 201210252720A CN 102767592 A CN102767592 A CN 102767592A
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- external toothing
- level
- ring gear
- input shaft
- output shaft
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Abstract
The invention relates to a reducer, in particular to an engagement type gear reducer with small tooth number difference. The engagement type gear reducer with small tooth number difference comprises a shell, an input shaft and an output shaft disposed along the axial direction of the shell, and a speed reduction mechanism arranged between the input shaft and the output shaft and linked with the input shaft and the output shaft. The input shaft and the output shaft are coaxially arranged on the shell; the speed reduction mechanism includes an eccentric shaft linked with the input shaft and arranged eccentrically relative to the input shaft, a roller bearing fitted on the eccentric shaft, a first-stage speed reduction assembly fitted on the roller bearing, and a second-stage speed reduction assembly linked with the first-stage speed reduction assembly; and the second-stage speed reduction assembly is in linkage connection with the output shaft. According to said technical scheme, an engagement type gear reducer with small tooth number difference, large transmission speed ratio and high carrying capacity is provided.
Description
Technical field
The present invention relates to a kind of retarder, particularly a kind of few tooth difference engagement type gear reducer.
Background technique
Speed reducer is that a kind of power is passed on mechanism, utilizes the velocity transducer of gear, the winding number of motor is decelerated to desired winding number, and obtain the mechanism of big 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; From boats and ships, automobile, the locomotive of the traffic tool, heavy facility for building, machining machine and tool that mechanical industry 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, and 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.
At present, the speed reducer that occurs on market and the data mainly by shell, along enclosure axis to the input shaft and the output shaft that are provided with, be provided with reducing gear between input shaft and the output shaft; This reducing gear is generally planetary gear set, yet the sun gear that is connected interlock in the planetary gear set with input shaft is less; Directly influenced transmission speed ratio; And bearing capacity is little, and sun gear damage easily after using for a long time, and its replacing process is also comparatively loaded down with trivial details.
Summary of the invention
To the deficiency that existing technology exists, it is big to the invention provides a kind of transmission speed ratio, few tooth difference engagement type gear reducer that bearing capacity is big.
For realizing above-mentioned purpose; The invention provides following technological scheme: a kind of few tooth difference engagement type gear reducer; Include shell, along enclosure axis to the input shaft and the output shaft that are provided with; Be provided with the reducing gear of interlock input shaft and output shaft between input shaft and the output shaft; It is characterized in that: described input shaft and output shaft concentric are set up on the shell; Described reducing gear includes with input shaft interlock and with the eccentric eccentric shaft that is provided with of input shaft, be sheathed on needle bearing on the eccentric shaft, be sheathed on the needle bearing one-level deceleration assembly and with the double reduction assembly of one-level deceleration assembly interlock, described double reduction assembly and output shaft are connected; Described one-level deceleration assembly includes the one-level external toothing that is sheathed on the needle bearing, be sheathed on the one-level external toothing outer with the intermittent one-level ring gear that meshes and be fixedly connected of one-level external toothing with shell; Leave intermittent engagement space between one-level external toothing and the one-level ring gear, and the external tooth of one-level external toothing is less than the internal tooth of one-level ring gear; Described double reduction assembly includes the secondary external toothing that is sheathed on the needle bearing and is sheathed on outside the secondary external toothing and with secondary external toothing intermittence and meshes the secondary ring gear of rotation; And leave intermittence between secondary external toothing and the secondary ring gear and mesh the space; And the external tooth of secondary external toothing is less than the internal tooth of secondary ring gear, and the secondary ring gear is connected through link and output shaft; Described one-level ring gear and secondary ring gear and input shaft concentric are provided with; Described one-level external toothing and secondary external toothing are connected, and the axial two ends of eccentric shaft are provided with the locating piece that impels one-level external toothing and secondary external toothing axially locating.
Adopt technique scheme; The reducing gear that is used to connect input shaft and output shaft is by constituting with eccentric eccentric shaft that is provided with of input shaft and one-level deceleration assembly and the double reduction assembly of being located on the eccentric shaft; Implement to be connected through needle bearing between one-level external toothing in one-level deceleration assembly and the double reduction assembly and secondary external toothing and the eccentric shaft; Be sheathed on one-level external toothing and secondary external toothing outer one-level ring gear and secondary ring gear and the setting of input shaft concentric; After being provided with like this; One-level external toothing and secondary external toothing and one-level ring gear and secondary ring gear also are set for the eccentric, and owing to the number of teeth inconsistent (number of teeth of one-level external toothing, secondary external toothing is less than one-level ring gear, secondary ring gear) between one-level external toothing, secondary external toothing and one-level ring gear, the secondary ring gear.In running, the one-level ring gear is fixedly connected with shell, and the one-level ring gear can not rotate; When intermittence meshed between one-level external toothing and one-level ring gear were implemented, the one-level external toothing obtained deceleration, and the secondary external toothing that links with the one-level external toothing also can mesh with secondary ring gear enforcement intermittence simultaneously; The driving force that two groups of deceleration combination of components are exported is exported to output shaft through the secondary ring gear; It is big that transmission speed ratio is set like this, and compact structure, and bearing capacity is strong; Be difficult for being damaged and fault, move more stable.
The present invention further is set to: be provided with the axially locating part between one-level ring gear and the secondary ring gear, this axially locating part includes and is opened in the location pit of offering on one-level ring gear and the secondary ring gear opposing end faces and is located at the location ball cage in the pit of location.
Adopt technique scheme, between one-level ring gear and the secondary ring gear setting of axially locating part make the secondary ring gear axially obtain can prevent effectively that the secondary ring gear from taking place to squint and have influence on the transmission effect vertically in the location in running.The axially locating part is selected for use to locating pit and being located at the location ball cage in the pit of location, then is in order to make its linkage structure more simple, to install more convenient.
The present invention further is set to: the joint of one-level external toothing and secondary external toothing is provided with the convex tendon of ring-type, offers some buckling grooves on this convex tendon, and said secondary external toothing is provided with some and the adaptive clamping block of buckling groove towards the end face of one-level external toothing; The locating piece that is used on the described eccentric shaft one-level external toothing and secondary external toothing location is the back-up ring that is sheathed on the eccentric shaft.
Adopt technique scheme, be provided with like this and connect conveniently, and compact, can make one-level external toothing and secondary external toothing keep rotating synchronously, for the raising of transmission speed ratio provides guarantee.The setting of back-up ring then can make the axial two ends of one-level external toothing and secondary external toothing obtain the location, prevents that one-level external toothing and secondary external toothing from when operation axial displacement taking place and having influence on the transmission effect.
The present invention further is set to: the mounting cover that shell includes housing and is connected with housing; The joint of housing and mounting cover is a construction opening; The edge of construction opening is connected with mounting cover through screw; Mounting cover is provided with the mount inlet a that supplies input shaft to intert, and the other end place that is oppositely arranged construction opening one end on the housing offers the mount inlet b that supplies output shaft to intert, and is respectively equipped with lip-type packing between mount inlet a and input shaft and mount inlet b and the output shaft.
Adopt technique scheme, after being provided with like this, shell had both had the construction opening that can supply component to install, and the junction surface between mounting cover and the housing is less in the shell simultaneously, and the integral sealing of shell is protected; The setting of input shaft and the lip-type packing of output shaft place also is in order to guarantee sealing.
Below in conjunction with accompanying drawing the present invention is further described.
Description of drawings
Fig. 1 is the schematic perspective view of the embodiment of the invention;
Fig. 2 is the decomposing schematic representation of reducing gear in the embodiment of the invention;
Fig. 3 is the structural representation of the embodiment of the invention;
Fig. 4 is the schematic perspective view of one-level deceleration assembly in the embodiment of the invention;
Fig. 5 is the schematic perspective view of double reduction assembly in the embodiment of the invention.
Embodiment
Like a kind of few tooth difference engagement type gear reducer of Fig. 1-shown in Figure 5, include shell 1, along input shaft 2 and output shaft 3 that shell 1 axially is provided with, be provided with the reducing gear 4 of interlock input shaft 2 and output shaft 3 between input shaft 2 and the output shaft 3.Input shaft 2 is set up on the shell 1 with output shaft 3 concentrics; Reducing gear 4 includes with input shaft 2 interlock and with the input shaft 2 eccentric eccentric shafts 41 that are provided with, be sheathed on needle bearing 42 on the eccentric shaft 41, be sheathed on the needle bearing 42 one-level deceleration assembly 43 and with the double reduction assembly 44 of one-level deceleration assembly 43 interlocks; Above-mentioned eccentric shaft 41 can be wholely set with input shaft 2; Also can be the split setting, preferably be wholely set in the embodiment of the invention, process and install more convenient like this.Double reduction assembly 44 is connected with output shaft 3; One-level deceleration assembly 43 includes the one-level external toothing 421 that is sheathed on the needle bearing 42, be sheathed on one-level external toothing 431 outer with the one-level external toothing 431 intermittent one-level ring gears 432 that mesh and be fixedly connected with shell 1; Leave intermittent engagement space 433 between one-level external toothing 431 and the one-level ring gear 432, and the external tooth of one-level external toothing 431 is less than the internal tooth of one-level ring gear 432; Double reduction assembly 44 includes the secondary external toothing 441 that is sheathed on the needle bearing 42 and is sheathed on outside the secondary external toothing 441 and with secondary external toothing 441 intermittences and meshes the secondary ring gears 442 of rotation; And leave intermittence between secondary external toothing 441 and the secondary ring gear 442 and mesh space 443; The external tooth of secondary external toothing 441 is less than the internal tooth of secondary ring gear 442, and secondary ring gear 442 is connected through link and output shaft 3; One-level ring gear 432 and secondary ring gear 442 and input shaft 2 concentric settings; One-level external toothing 431 is connected with secondary external toothing 441, and the axial two ends of eccentric shaft 41 are provided with the locating piece 45 that impels one-level external toothing 431 and secondary external toothing 441 axially locating, and locating piece 45 is for being sheathed on the back-up ring on the eccentric shaft 41.In the such scheme; The reducing gear 4 that is used to connect input shaft 2 and output shaft 3 is by constituting with input shaft 2 eccentric eccentric shafts 41 that are provided with and one-level deceleration assembly 43 and the double reduction assembly of being located on the eccentric shaft 41 44; Implement to be connected through needle bearing 42 between one-level external toothing 431 in one-level deceleration assembly 43 and the double reduction assembly 44 and secondary external toothing 441 and the eccentric shaft 41; Be sheathed on one-level ring gear 432 and secondary ring gear 442 and input shaft 2 concentric settings outside one-level external toothing 431 and the secondary external toothing 441; After being provided with like this; One-level external toothing 431 and secondary external toothing 441 also are set for the eccentric with one-level ring gear 432 and secondary ring gear 442, and owing to the number of teeth inconsistent (number of teeth of one-level external toothing 431, secondary external toothing 441 is less than one-level ring gear 432, secondary ring gear 442) between one-level external toothing 431, secondary external toothing 441 and one-level ring gear 432, the secondary ring gear 442.In running, one-level ring gear 432 is fixedly connected with shell 1, and one-level ring gear 432 can not rotate; When intermittence meshed between one-level external toothing 431 and one-level ring gear 432 were implemented, one-level external toothing 431 obtained deceleration, and the secondary external toothing 441 that links with one-level external toothing 431 also can mesh with secondary ring gear 442 enforcement intermittences simultaneously; The driving force that two groups of deceleration combination of components are exported is exported to output shaft 3 through secondary ring gear 442; It is big that transmission speed ratio is set like this, and compact structure, and bearing capacity is strong; Be difficult for being damaged and fault, move more stable.
In embodiments of the present invention; Because one-level ring gear 432 is fixedly connected with shell 1; So the axial position of one-level ring gear 432 has obtained the location; And secondary ring gear 442 need be to output shaft 3 output torques, and it is movable, cause in order to prevent it axially to be subjected to displacement implementing engagement with secondary external toothing 442; Between one-level ring gear 432 and secondary ring gear 442, be provided with axially locating part 5, this axially locating part 5 includes and is opened in the location pit of offering on one-level ring gear 432 and secondary ring gear 442 opposing end faces 51 and establishes and locate the location ball cage 52 in the pit 51.Certainly, need to prove that location pit 51 and location ball cage 52 are a kind of the giving an example in the axially locating part 5.In embodiments of the present invention; One-level external toothing 431 is following with the Placement of secondary external toothing 441: the joint of one-level external toothing 431 and secondary external toothing 441 is provided with the convex tendon 4311 of ring-type; Offer some buckling grooves 4312 on this convex tendon 4311, secondary external toothing 441 is provided with the adaptive clamping block 4411 of some and buckling groove 4312 towards the end face of one-level external toothing 431; Such Placement is easy to process, and is connected firmly.Need to prove, also can the convex tendon that offer buckling groove be located on the secondary external toothing 441, and clamping block is located on the one-level external toothing 431, also is feasible.
The mounting cover 12 that shell 1 in the embodiment of the invention includes housing 11 and is connected with housing 11; Housing 11 is a construction opening 13 with the joint of mounting cover 12; The edge of construction opening 13 is connected with mounting cover 12 through screw; Mounting cover 12 is provided with the mount inlet a14 that supplies input shaft 2 to intert; The other end place that is oppositely arranged construction opening 13 1 ends on the housing 11 offers the mount inlet b15 that supplies output shaft 3 to intert, and is respectively equipped with lip-type packing 6 between mount inlet a14 and input shaft 2 and mount inlet b15 and the output shaft 3.Shell 1 had both had the construction opening 13 that can supply component to install, and the junction surface between mounting cover 12 and the housing 11 is less in the shell 1 simultaneously, and the integral sealing of shell 1 is protected; The setting of input shaft 2 and output shaft 3 places lip-type packing 6 also is in order to guarantee sealing.
Claims (5)
1. one kind is lacked tooth difference engagement type gear reducer; Include shell, along enclosure axis to the input shaft and the output shaft that are provided with; Be provided with the reducing gear of interlock input shaft and output shaft between input shaft and the output shaft; It is characterized in that: described input shaft and output shaft concentric are set up on the shell; Described reducing gear includes with input shaft interlock and with the eccentric eccentric shaft that is provided with of input shaft, be sheathed on needle bearing on the eccentric shaft, be sheathed on the needle bearing one-level deceleration assembly and with the double reduction assembly of one-level deceleration assembly interlock, described double reduction assembly and output shaft are connected; Described one-level deceleration assembly includes the one-level external toothing that is sheathed on the needle bearing, be sheathed on the one-level external toothing outer with the intermittent one-level ring gear that meshes and be fixedly connected of one-level external toothing with shell; Leave intermittent engagement space between one-level external toothing and the one-level ring gear, and the external tooth of one-level external toothing is less than the internal tooth of one-level ring gear; Described double reduction assembly includes the secondary external toothing that is sheathed on the needle bearing and is sheathed on outside the secondary external toothing and with secondary external toothing intermittence and meshes the secondary ring gear of rotation; And leave intermittence between secondary external toothing and the secondary ring gear and mesh the space; And the external tooth of secondary external toothing is less than the internal tooth of secondary ring gear, and the secondary ring gear is connected through link and output shaft; Described one-level ring gear and secondary ring gear and input shaft concentric are provided with; Described one-level external toothing and secondary external toothing are connected, and the axial two ends of eccentric shaft are provided with the locating piece that impels one-level external toothing and secondary external toothing axially locating.
2. few tooth difference engagement type gear reducer according to claim 1; It is characterized in that: be provided with the axially locating part between described one-level ring gear and the secondary ring gear, this axially locating part includes and is opened in the location pit of offering on one-level ring gear and the secondary ring gear opposing end faces and is located at the location ball cage in the pit of location.
3. few tooth difference engagement type gear reducer according to claim 1 and 2; It is characterized in that: the joint of said one-level external toothing and secondary external toothing is provided with the convex tendon of ring-type; Offer some buckling grooves on this convex tendon, said secondary external toothing is provided with some and the adaptive clamping block of buckling groove towards the end face of one-level external toothing; The locating piece that is used on the described eccentric shaft one-level external toothing and secondary external toothing location is the back-up ring that is sheathed on the eccentric shaft.
4. few tooth difference engagement type gear reducer according to claim 1 and 2; It is characterized in that: the mounting cover that described shell includes housing and is connected with housing; The joint of housing and mounting cover is a construction opening; The edge of construction opening is connected with mounting cover through screw; Mounting cover is provided with the mount inlet a that supplies input shaft to intert, and the other end place that is oppositely arranged construction opening one end on the housing offers the mount inlet b that supplies output shaft to intert, and is respectively equipped with lip-type packing between mount inlet a and input shaft and mount inlet b and the output shaft.
5. few tooth difference engagement type gear reducer according to claim 3; It is characterized in that: the mounting cover that described shell includes housing and is connected with housing; The joint of housing and mounting cover is a construction opening; The edge of construction opening is connected with mounting cover through screw; Mounting cover is provided with the mount inlet a that supplies input shaft to intert, and the other end place that is oppositely arranged construction opening one end on the housing offers the mount inlet b that supplies output shaft to intert, and is respectively equipped with lip-type packing between mount inlet a and input shaft and mount inlet b and the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102527208A CN102767592A (en) | 2012-07-20 | 2012-07-20 | Engagement type gear reducer with small tooth number difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102527208A CN102767592A (en) | 2012-07-20 | 2012-07-20 | Engagement type gear reducer with small tooth number difference |
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| Publication Number | Publication Date |
|---|---|
| CN102767592A true CN102767592A (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102527208A Pending CN102767592A (en) | 2012-07-20 | 2012-07-20 | Engagement type gear reducer with small tooth number difference |
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| Country | Link |
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| CN (1) | CN102767592A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982600A (en) * | 2014-05-25 | 2014-08-13 | 张小龙 | Wheel diameter difference member speed reducer |
| CN109692617A (en) * | 2019-01-22 | 2019-04-30 | 苏增荣 | A kind of vertical mixer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195656Y (en) * | 1994-09-02 | 1995-04-26 | 郭俊福 | Toothed planet-gear speed reducer |
| CN202674185U (en) * | 2012-07-20 | 2013-01-16 | 浙江顺天减速机制造有限公司 | Small-tooth-difference engagement type gear speed reducer |
-
2012
- 2012-07-20 CN CN2012102527208A patent/CN102767592A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2195656Y (en) * | 1994-09-02 | 1995-04-26 | 郭俊福 | Toothed planet-gear speed reducer |
| CN202674185U (en) * | 2012-07-20 | 2013-01-16 | 浙江顺天减速机制造有限公司 | Small-tooth-difference engagement type gear speed reducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982600A (en) * | 2014-05-25 | 2014-08-13 | 张小龙 | Wheel diameter difference member speed reducer |
| CN109692617A (en) * | 2019-01-22 | 2019-04-30 | 苏增荣 | A kind of vertical mixer |
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Application publication date: 20121107 |