CN203868173U - Planetary gear type clutch - Google Patents
Planetary gear type clutch Download PDFInfo
- Publication number
- CN203868173U CN203868173U CN201420239082.0U CN201420239082U CN203868173U CN 203868173 U CN203868173 U CN 203868173U CN 201420239082 U CN201420239082 U CN 201420239082U CN 203868173 U CN203868173 U CN 203868173U
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- CN
- China
- Prior art keywords
- gear
- clutch
- gear ring
- planetary gear
- buffering ball
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a planetary gear type clutch, and relates to the technical field of a clutch. The planetary gear type clutch comprises a clutch body, wherein the clutch body comprises an input shaft, an output shaft, a gear ring, a braking device, a planet wheel, a planet carrier and a sun gear; the input shaft is coupled with the sun gear; the output shaft is coupled with the planet carrier; the braking device is arranged outside the gear ring; the gear ring comprises a ring part, a gear part and buffering round balls; through holes for placing the buffering round balls are formed in the outer periphery of the ring part in the radial direction; the outer periphery of the gear part is fixedly connected with the inner periphery of the ring part; the outer side openings of the through holes are constructed in a manner that the openings shrink towards the axes of the through holes in a radian to enable the diameter of the outer side openings to be smaller than that of the buffering round balls; the buffering round balls are propped against the outer side openings through springs; round ball bases are further arranged between the buffering round balls and the springs. The planetary gear type clutch is small in abrasion, high in strength and long in service life.
Description
Technical field
The utility model relates to Clutch Technology field, specifically, relates to a kind of planetary gear type clutch.
Background technique
For automobile, clutch is being brought into play great function on the automobile that adopts manual transmission, it is the direct part assembly of connecting engine and speed changer in power train, the power of motor is delivered to speed changer by clutch, and its main function has following three aspects: 1. ensure automobile balance starting; 2. ensure the smooth-going gear shift of power train; 3. prevent power train overload.The clutch principal mode adopting is at present friction clutcch, and it is that driving link and driven member produce frictional force by friction and carry out transferring power.In practice, this clutch there will be some faults that cannot overcome.Be mainly reflected in following several aspect: 1. cltuch slipping; 2. clutch separation is not thorough; 3. clutch shudder (joint irregularity); 4. clutch abnormal sound.Producing the topmost reason of above-mentioned fault is due to the friction disc wear on driven disc, cause combination between driving link and driven member not in place, can not be thoroughly while separating, hold-down mechanism presses not in place.Because driver's operation clutch is frequent, the wearing and tearing of friction plate are inevitable, and the problems referred to above can not solve, and meanwhile, the driven disc in clutch often will be changed, and the working life of clutch is not long.
Summary of the invention
Content of the present utility model is to provide a kind of planetary gear type clutch, and it can overcome certain or some defect of prior art.
According to a kind of planetary gear type clutch of the present utility model, it comprises clutch body, clutch body comprises input shaft, output shaft, gear ring, braking device, planet wheel, planet carrier and sun gear, and input shaft connects with sun gear, and output shaft connects with planet carrier; Gear ring is provided with braking device outward; Gear ring comprises circle portion, tooth portion and buffering ball, and the periphery of circle portion is radially provided with the through hole of placing buffering ball, and the periphery of tooth portion is fixedly connected with circle portion in interior week; The outer openings of described through hole is configured to shrink to the axle of described through hole with a radian, and then makes the diameter of described outer openings be less than the diameter that cushions ball; Buffering ball is pressed in described outer openings by spring, between buffering ball and spring, is also provided with ball base.
The utility model is fixed gear ring by braking device and is unclamped, taking sun crop rotation as input block, and just can input shaft using planet carrier as output block and the clutch function of output shaft.
The utility model is in the time carrying out clutch operation, and all gears of planetary gears are intermeshing all the time, and without shifting slide gear, fretting wear is little; The utility model is simple in structure, compact, and its load is assigned on the tooth of One's name is legion, and intensity is large; Thereby greatly increase physical life of the present utility model.Sun gear of the present utility model does input end, planet carrier does output terminal, velocity ratio is greater than 1, like this, and concerning whole power train, the numeric ratio of velocity ratio adopts friction clutcch to want large, for requiring the situation that velocity ratio is larger, main reducing gear can adopt single step arrangement to meet the demands, power foot, reduce the overall sizes of main reducing gear, improve the passing ability of automobile.
Gear ring of the present utility model is provided with buffering ball, braking device is in the process of clamping gear ring, the buffering ball arranging in gear ring periphery can progressively shrink in described through hole, rotate in the gap of braking device and gear ring because buffering ball is enough, thereby there is a difference in rotation in the rotation that ensures input shaft and output shaft in this process, keep half-clutch state, thereby ensured the gentle start of vehicle, difficult stopping working.
As preferably, ball base is cylindric, and it is provided with the groove for placing buffering ball with one end of buffering ball adjacency.
Ball base of the present utility model can provide a good rotation environment for buffering ball, make to cushion ball not can because of rub excessive cannot normal rotation, and cause normally entering half-clutch state.
As preferably, the surface of gear ring is provided with one deck nitride layer, and the thickness of nitride layer is M, 0.3mm≤M≤0.4mm, and the compound layer in nitride layer is not less than 0.007mm.
The surface of gear ring of the present utility model is provided with one deck nitride layer, thereby makes gear ring have preferably wear resistance, fatigue resistance, corrosion resistance and resistant to elevated temperatures characteristic.In the utility model, when the thickness of the nitride layer on gear ring surface is 0.3～0.4mm, when compound layer is not less than 0.007mm, can between cost of production and technique effect, obtain a preferably balance.
Brief description of the drawings
Fig. 1 is the structural representation of clutch body in embodiment 1;
Fig. 2 is the structural representation of gear ring in Fig. 1;
Fig. 3 is the axial view of gear ring in Fig. 2;
Fig. 4 is the A-A view of Fig. 3;
Fig. 5 is the enlarged view of B part in Fig. 4;
Fig. 6 is the structural representation of ball base in embodiment 1.
Embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
Embodiment 1
As shown in Fig. 1-Fig. 6, for a kind of planetary gear type clutch of the present embodiment, it comprises clutch body 100, clutch body 100 comprises input shaft 110, output shaft 120, gear ring 130, braking device 140, planet wheel 150, planet carrier 151 and sun gear 160, input shaft 110 connects with sun gear 160, and output shaft 120 connects with planet carrier 151; The outer braking device 140 that is provided with of gear ring 130; Gear ring 130 comprises circle portion 210, tooth portion 220 and buffering ball 230, and the periphery of circle portion 210 is radially provided with the through hole of placing buffering ball 230, and the periphery of tooth portion 220 is fixedly connected with circle portion 210 in interior week; The outer openings of described through hole is configured to shrink to the axle of described through hole with a radian, and then makes the diameter of described outer openings be less than the diameter that cushions ball 230; Buffering ball 230 is pressed in described outer openings by spring 420, between buffering ball 230 and spring 420, is also provided with ball base 410.
Wherein, ball base 410 is cylindric, and it is provided with the groove for placing buffering ball 230 with one end of buffering ball 230 adjacency.The surface of gear ring 130 is provided with one deck nitride layer, and the thickness of nitride layer is 0.3mm, and the compound layer in nitride layer is 0.007mm.
In the present embodiment, tooth portion 220 comprises 73 helical teeth, and the pressure angle of helical teeth is 20 °, and helix angle is 25 °, transposition 0.330mm, and at the bottom of tooth, footpath is 96.56mm, and tooth top footpath is 90.74mm, and modulus is 1.15mm.The gear ring 130 of the present embodiment is in manufacturing process, and gear ring 130 materials adopt 42CrMo, and production technology comprises forging, normalizing, modified, Che Jia, slightly grinds, gear shaping, nitriding treatment, chamfered and finish turning processing.Wherein, forging stock, blank normalizing hardness are HB165, and quenching with Subsequent tempering hardness is HRC20, and nitriding treatment makes its surface have one deck nitride layer, and to make its surface hardness be that HV550, centre hardness are HV150.Such technique makes the structure of gear ring 130 more be applicable to applying in this enforcement.
In the time that gear ring in this enforcement 130 is braked device 140 and clamps, driven by engine input shaft 110 rotates, input shaft 110 drives sun gear 160 to rotate, because gear ring 130 is in stationary state, thereby make planet carrier 151 under the effect of planet wheel 150 and the equidirectional rotation of sun gear 160, the power of motor is transmitted to speed changer by output shaft 120, now automobile normal running.
In the time that gear ring in the present embodiment 130 is braked device 140 and unclamps, although now sun gear 160 still rotates, because gear ring 130 is in free state, now planet wheel 150 can rotate and drive gear ring 130 to rotate around planet axis, now input shaft 110 separates with output shaft 120, engine power can not be delivered to speed changer, and automobile cannot normally travel.
In the time that gear ring in the present embodiment 130 is changed to clamped condition by releasing orientation, the buffering ball 230 arranging on gear ring 130, can progressively in described through hole, shrink, rotate in the gap of braking device 140 and gear ring 130 because buffering ball 230 is enough, thereby ensure a difference in rotation diminishing gradually of existence between input shaft 110 and output shaft 120, can keep half-clutch state of a period of time, thereby ensure gentle start, the gearshift of vehicle, be difficult for flame-out.
6～18 buffering balls 230 can be set on gear ring 130, and the quantity that cushions ball 230 in the present embodiment is 12, now cushions the intensity that ball 230 can play good cushioning effect and can not affect gear ring 130.
Embodiment 2
A kind of planetary gear type clutch of the present embodiment, itself and embodiment's 1 difference is: the thickness of nitride layer is 0.4mm, and the compound layer in nitride layer is 0.008mm; Blank normalizing hardness is HB200, and quenching with Subsequent tempering hardness is HRC24; The quantity of buffering ball 230 is 6.
Embodiment 3
A kind of planetary gear type clutch of the present embodiment, itself and embodiment's 1 difference is: the thickness of nitride layer is 0.35mm, and the compound layer in nitride layer is 0.01mm; Blank normalizing hardness is HB180, and quenching with Subsequent tempering hardness is HRC22; The quantity of buffering ball 230 is 18.
Below schematically the utility model and mode of execution thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of mode of execution of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (3)
1. a planetary gear type clutch, comprise clutch body (100), clutch body (100) comprises input shaft (110), output shaft (120), gear ring (130), braking device (140), planet wheel (150), planet carrier (151) and sun gear (160), input shaft (110) connects with sun gear (160), and output shaft (120) connects with planet carrier (151); The outer braking device (140) that is provided with of gear ring (130); It is characterized in that: gear ring (130) comprises circle portion (210), tooth portion (220) and buffering ball (230), the periphery of circle portion (210) is radially provided with the through hole of placing buffering ball (230), and the periphery of tooth portion (220) is fixedly connected with circle portion (210) in interior week; The outer openings of described through hole is configured to shrink to the axle of described through hole with a radian, and then makes the diameter of described outer openings be less than the diameter of buffering ball (230); Buffering ball (230) is pressed in described outer openings by spring (420), between buffering ball (230) and spring (420), is also provided with ball base (410).
2. a kind of planetary gear type clutch according to claim 1, it is characterized in that: ball base (410) is for cylindric, and it is provided with the groove for placing buffering ball (230) with one end of buffering ball (230) adjacency.
3. a kind of planetary gear type clutch according to claim 1, is characterized in that: the surface of gear ring (130) is provided with one deck nitride layer, the thickness of nitride layer is M, 0.3mm≤M≤0.4mm, and the compound layer in nitride layer is not less than 0.007mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239082.0U CN203868173U (en) | 2014-05-09 | 2014-05-09 | Planetary gear type clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239082.0U CN203868173U (en) | 2014-05-09 | 2014-05-09 | Planetary gear type clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203868173U true CN203868173U (en) | 2014-10-08 |
Family
ID=51649130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239082.0U Expired - Fee Related CN203868173U (en) | 2014-05-09 | 2014-05-09 | Planetary gear type clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203868173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112801A (en) * | 2020-09-07 | 2020-12-22 | 台州汇精机电有限公司 | Air compressor machine chassis device convenient to remove |
-
2014
- 2014-05-09 CN CN201420239082.0U patent/CN203868173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112801A (en) * | 2020-09-07 | 2020-12-22 | 台州汇精机电有限公司 | Air compressor machine chassis device convenient to remove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |