CN202327030U - Two-stage reduction gearbox applied to agricultural irrigation driving equipment - Google Patents
Two-stage reduction gearbox applied to agricultural irrigation driving equipment Download PDFInfo
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- CN202327030U CN202327030U CN2011205474237U CN201120547423U CN202327030U CN 202327030 U CN202327030 U CN 202327030U CN 2011205474237 U CN2011205474237 U CN 2011205474237U CN 201120547423 U CN201120547423 U CN 201120547423U CN 202327030 U CN202327030 U CN 202327030U
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- worm gear
- rotating shaft
- worm
- case
- driving arrangement
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Abstract
The utility model provides a two-stage reduction gearbox applied to agricultural irrigation driving equipment, belongs to the technical field of machinery, and solves the problem that the conventional two-stage reduction gearbox is low in transmission efficiency and large in size. The two-stage reduction gearbox applied to the agricultural irrigation driving equipment comprises a worm wheel box and a rotating shaft, wherein a worm wheel and a worm are arranged in the worm wheel box; an oil storage chamber for storing lubricating oil is formed in the worm wheel box; the two ends of the worm are sleeved with bearings and extend out of the worm wheel box; the two bearings are fixedly arranged on the inner wall of the worm wheel box; the worm wheel is sleeved on the rotating shaft by a circumferential limit structure; the output end of the rotating shaft is fixedly connected with a connecting disk for connecting a wheel hub; and the worm wheel and the worm are connected with each other by a planar double-enveloping ring surface worm pair. The utility model has the advantage that: the two-stage reduction gearbox is high in transmission efficiency, stable in transmission, long in service life and small in size.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of double reduction case, particularly is applied to farming and irritates the double reduction case on the driving arrangement.
Background technique
The double reduction case that employed in the market farming is irritated in its drive unit of driving arrangement generally comprises worm gear case, and worm gear and worm screw are installed in its worm gear case, is connected with a joggle between worm gear and the worm screw; The end of worm screw is connected with motor output shaft, is arranged with rotating shaft in the worm gear, is fixed with land on the output terminal of rotating shaft and is connected through land and wheel hub etc.; Be provided with shoe cream room between worm gear and the worm screw; The problem of its existence is: adopt Archimedes's worm gear pair mode to carry out transmission between its worm gear and the worm screw, its transmission efficiency is low, is merely 40%; This kind mode transmission simultaneously makes that the volume of worm gear case is very big, causes whole worm gear case floor space big.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the little farming that is used for of a kind of transmission efficiency height and worm gear case volume and has irritated the double reduction case on the driving arrangement.
The purpose of the utility model can realize through following technical proposal: a kind of double reduction case that is used on the farming filling driving arrangement; Comprise worm gear case and rotating shaft; Worm gear and worm screw are installed in the worm gear case, have the shoe cream room that is used to deposit lubricant oil in the described worm gear case, the worm screw two ends are arranged with bearing and its worm screw two ends worm gear case that all stretches through out respectively; Two bearings is fixedly mounted on the inwall of worm gear case; Described worm gear is set in the rotating shaft through circumferential limit structure, and the output terminal of rotating shaft is fixed with the land that is used to connect wheel hub, it is characterized in that: connect through planar double-enveloping toroid worm gear between described worm gear and the worm screw.
Lubricant oil can be lubricated worm gear and worm screw; Adopt the twice-enveloping technology to be in transmission connection between its worm gear and the worm screw; The forming process of its planar double-enveloping toroid worm gear mainly comprises envelope movement twice: 1, for the first time envelope movement be the flank of tooth with a planar worm gear be generatrix and worm screw with certain relative movement, envelope goes out the helical tooth flank of worm screw; 2, for the second time envelope movement is to be that generatrix and worm gear go out the worm gear flank of tooth through the conjugate movement envelope with the helical tooth flank that the first time, envelope movement formed.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement, described worm gear case upper end wall has the oil inlet hole with internal thread, and the oil that has been threaded in the oil inlet hole is stifled, and described oil inlet hole is communicated with above-mentioned shoe cream room.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement, described bearing is a tapered roller bearing.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement; Be respectively equipped with oil seal between described worm screw two ends and the worm gear case inwall; Worm screw is tightly connected through oil seal and worm gear case, and described oil seal is between corresponding worm screw end and bearing.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement, described worm screw front end sleeve is provided with sheath, and its rear end is arranged with rear end cover, and described rear end cover is installed on the worm gear case.
After unloading lower jacket, can the worm screw front end be connected with the output shaft of motor, motor rotates through its output shaft and drives the worm screw rotation.The protective action to worm screw is built in sheath and rear end, prevents that impurity such as dust are to the worm screw Effect on Performance.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement, described circumferential limit structure comprises the groove that is opened in the rotating shaft and is connected in the flat key on the worm gear.
Worm gear through groove and flat key structure with during power is from the worm drive to the rotating shaft.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement; Be arranged with front cone roller bearing and back tapered roller bearing on its output terminal of described rotating shaft and the rear end respectively, described front cone roller bearing is connected on the worm gear case inwall with the back tapered roller bearing.
A kind of double reduction case that is used on the farming filling driving arrangement above-mentioned connects through the axial limiting structure between described rotating shaft rear end and the back tapered roller bearing.
The axial limiting structure can prevent that rotating shaft from producing axial float in the course of the work, and it is steady, efficient to guarantee that rotating shaft is rotated.
At above-mentioned a kind of double reduction case that is used on the farming filling driving arrangement; Described axial limiting structure comprises the step that is arranged on the rotating shaft rear end and is opened in the draw-in groove on the rotating shaft rear end; Jump ring is installed in the draw-in groove, and described jump ring and step are resisted against respectively on the both ends of the surface of back tapered roller bearing.
Compared with prior art, the double reduction case that originally is used on the farming filling driving arrangement has following several advantage:
1, its worm gear and worm screw are adopted the twice-enveloping technology, and transmission efficiency is up to more than 90%, and the worm gear case structure can dwindle 40%, and its bearing capacity is big, and through promoting the transmission efficiency of double reduction case, one-level center driven input power can reduce 50%;
2, adopt tapered roller bearing to substitute general bearing, its tapered roller bearing can bearing radial force, can bear axial force again, thus the more steady and high efficiency that worm screw is rotated, and be difficult for impaired;
3, the lubricant oil in its shoe cream room can be lubricated worm gear, worm screw, makes that frictional force reduces between worm screw, the worm gear, long service life not easy to wear, and it is more smooth and easy to work simultaneously;
4, carry out axial limiting through jump ring, draw-in groove, step and back tapered roller bearing structure countershaft; Guarantee that rotating shaft can axial float; So, in the power transmission process,, make rotating shaft powerdriven very steadily with efficient because the rotating shaft circumferential and axial all carry out spacingly; Reduce noise, improve the operating life of speed reducer.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the sectional view at A-A place among Fig. 1.
Fig. 3 is the partial sectional view at B-B place among Fig. 2.
Among the figure, 1, worm gear case; 2, rotating shaft; 3, worm gear; 4, worm screw; 5, shoe cream room; 6, oil inlet hole; 7, oil is stifled; 8, tapered roller bearing; 9, sheath; 10, rear end cover; 11, groove; 12, flat key; 13, land; 14, oil seal; 15, front cone roller bearing; 16, back tapered roller bearing; 17, step; 18, jump ring.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Like Fig. 1, shown in 2 and 3; Originally the double reduction case that is used on the farming filling driving arrangement comprises worm gear case 1 and rotating shaft 2; Worm gear 3 and worm screw 4 are installed in the worm gear case 1, have the shoe cream room 5 that is used to deposit lubricant oil in the worm gear case 1, worm gear case 1 upper end wall has the oil inlet hole 6 with internal thread; The oil that has been threaded in the oil inlet hole 6 blocks up 7, and oil inlet hole 6 is communicated with shoe cream room 5.Worm screw 4 two ends are arranged with tapered roller bearing 8 and its worm screw 4 two ends worm gear case 1 that all stretches through out respectively, and worm screw 4 front end sleeves are provided with sheath 9, and its rear end is arranged with rear end cover 10, and rear end cover 10 is installed on the worm gear case 1.Two tapered roller bearings 8 are fixedly mounted on the inwall of worm gear case 1, and worm gear 3 is set in the rotating shaft 2 through circumferential limit structure, and circumferentially limit structure comprises the groove 11 that is opened in the rotating shaft 2 and is connected in the flat key 12 on the worm gear 3.The output terminal of rotating shaft 2 is fixed with the land 13 that is used to connect wheel hub, connects through planar double-enveloping toroid worm gear between worm gear 3 and the worm screw 4.
Be respectively equipped with oil seal 14 between worm screw 4 two ends and worm gear case 1 inwall, worm screw 4 is tightly connected through oil seal 14 and worm gear case 1, and oil seal 14 is between corresponding worm screw 4 ends and tapered roller bearing 8.
Be arranged with front cone roller bearing 15 and back tapered roller bearing 16 on rotating shaft 2 its output terminals and the rear end respectively, front cone roller bearing 15 is connected on worm gear case 1 inwall with back tapered roller bearing 16.Connect through the axial limiting structure between rotating shaft 2 rear ends and the back tapered roller bearing 16.The axial limiting structure comprises the step 17 that is arranged on rotating shaft 2 rear ends and is opened in the draw-in groove on rotating shaft 2 rear ends, and jump ring 18 is installed in the draw-in groove, and described jump ring 18 is resisted against respectively on the both ends of the surface of back tapered roller bearing 16 with step 17.
Worm screw 4 axial tooth profiles of present embodiment are arc and distribute, and contact tooth is 3～7 teeth simultaneously; Worm screw 4 flank of tooth Precise Grinding after cure process forms tooth face hardness: HRC＞＞50, roughness Ra＜＜0.8; Machining process and forming process are in full accord, can guarantee the theory state of accuracy of manufacturing and engagement reliably; The flank of tooth connects place's area greater than 70%; Two Line of contact that constantly advance to the centre from two ends along facewidth direction that occur are simultaneously all arranged on worm gear 3 flank of tooth all the time, and the angle of Line of contact and relative velocity direction is near 90 degree; The lubricated angle of the flank of tooth is big, and the formation of dynamic pressure oil film and retentivity are good.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
The possibility of using other term do not got rid of in terms such as worm gear case 1, rotating shaft 2, worm gear 3, worm screw 4, shoe cream room 5, oil inlet hole 6, oil are stifled 7 although this paper has used morely, tapered roller bearing 8, sheath 9, rear end cover 10, groove 11, flat key 12, land 13, oil seal 14, front cone roller bearing 15, back tapered roller bearing 16, step 17, jump ring 18.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (9)
1. one kind is used for agricultural double reduction case of irritating on the driving arrangement; Comprise worm gear case (1) and rotating shaft (2); Worm gear (3) and worm screw (4) are installed in the worm gear case (1); Has the shoe cream room (5) that is used to deposit lubricant oil in the described worm gear case (1); Worm screw (4) two ends are arranged with bearing and its worm screw (4) two ends worm gear case (1) that all stretches through out respectively, and two bearings is fixedly mounted on the inwall of worm gear case (1), and described worm gear (3) is set in the rotating shaft (2) through circumferential limit structure; The output terminal of rotating shaft (2) is fixed with the land (13) that is used to connect wheel hub, it is characterized in that: connect through planar double-enveloping toroid worm gear between described worm gear (3) and the worm screw (4).
2. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 1; It is characterized in that; Described worm gear case (1) upper end wall has the oil inlet hole (6) with internal thread; The oil that has been threaded in the oil inlet hole (6) blocks up (7), and described oil inlet hole (6) is communicated with above-mentioned shoe cream room (5).
3. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 2 is characterized in that described bearing is tapered roller bearing (8).
4. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 3; It is characterized in that; Be respectively equipped with oil seal (14) between described worm screw (4) two ends and worm gear case (1) inwall; Worm screw (4) is tightly connected through oil seal (14) and worm gear case (1), and described oil seal (14) is positioned between corresponding worm screw (4) end and the bearing.
5. according to claim 1 or 2 or 3 or 4 described a kind of double reduction casees that are used on the farming filling driving arrangement; It is characterized in that; Described worm screw (4) front end sleeve is provided with sheath (9), and its rear end is arranged with rear end cover (10), and described rear end cover (10) is installed on the worm gear case (1).
6. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 5 is characterized in that described circumferential limit structure comprises the groove (11) that is opened in the rotating shaft (2) and is connected in the flat key (12) on the worm gear (3).
7. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 6; It is characterized in that; Be arranged with front cone roller bearing (15) and back tapered roller bearing (16) on its output terminal of described rotating shaft (2) and the rear end respectively, described front cone roller bearing (15) and back tapered roller bearing (16) are connected on worm gear case (1) inwall.
8. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 7 is characterized in that, connects through the axial limiting structure between described rotating shaft (2) rear end and the back tapered roller bearing (16).
9. a kind of double reduction case that is used on the farming filling driving arrangement according to claim 8; It is characterized in that; Described axial limiting structure comprises and is arranged on the step (17) on rotating shaft (2) rear end and is opened in the draw-in groove on rotating shaft (2) rear end; Jump ring (18) is installed in the draw-in groove, and described jump ring (18) and step (17) are resisted against respectively on the both ends of the surface of back tapered roller bearing (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205474237U CN202327030U (en) | 2011-12-09 | 2011-12-09 | Two-stage reduction gearbox applied to agricultural irrigation driving equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205474237U CN202327030U (en) | 2011-12-09 | 2011-12-09 | Two-stage reduction gearbox applied to agricultural irrigation driving equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327030U true CN202327030U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205474237U Expired - Fee Related CN202327030U (en) | 2011-12-09 | 2011-12-09 | Two-stage reduction gearbox applied to agricultural irrigation driving equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327030U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518750A (en) * | 2011-12-09 | 2012-06-27 | 浙江康明斯机械有限公司 | Secondary speed reduction box applied on agricultural irrigation driving equipment |
| CN103062336A (en) * | 2012-12-24 | 2013-04-24 | 台州金剑机械制造有限公司 | Rotating taper pin worm gear ring face worm transmission structure |
| WO2022245685A1 (en) * | 2021-05-19 | 2022-11-24 | Valmont Industries, Inc. | Enveloping worm gear gearbox for mechanized irrigation machines |
-
2011
- 2011-12-09 CN CN2011205474237U patent/CN202327030U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518750A (en) * | 2011-12-09 | 2012-06-27 | 浙江康明斯机械有限公司 | Secondary speed reduction box applied on agricultural irrigation driving equipment |
| CN103062336A (en) * | 2012-12-24 | 2013-04-24 | 台州金剑机械制造有限公司 | Rotating taper pin worm gear ring face worm transmission structure |
| WO2022245685A1 (en) * | 2021-05-19 | 2022-11-24 | Valmont Industries, Inc. | Enveloping worm gear gearbox for mechanized irrigation machines |
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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: 20120711 Termination date: 20141209 |
|
| EXPY | Termination of patent right or utility model |