CN203585250U - Hydrostatic stepless speed changing device - Google Patents
Hydrostatic stepless speed changing device Download PDFInfo
- Publication number
- CN203585250U CN203585250U CN201320805847.8U CN201320805847U CN203585250U CN 203585250 U CN203585250 U CN 203585250U CN 201320805847 U CN201320805847 U CN 201320805847U CN 203585250 U CN203585250 U CN 203585250U
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- Prior art keywords
- hole
- output shaft
- input shaft
- cover plate
- stepless speed
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- 230000002706 hydrostatic effect Effects 0.000 title claims abstract description 21
- 230000002459 sustained effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 36
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 230000000295 complement effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
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Abstract
The utility model discloses a hydrostatic stepless speed changing device. According to the structure of the hydrostatic stepless speed changing device, an input shaft and an output shaft are arranged in a shell body, a cover plate is arranged at the bottom of the shell body, the input shaft and the output shaft drive a single-way valve a to rotate through a gear appearance, inner circulating of hydraulic oil is achieved, under pushing of oil pressure, the output shaft rotates, the hydraulic oil circulates in an arc oil groove in the cover plate and in a straight line oil groove, and through the fact that a driving rod drives an oblique disc, obverse-reverse rotating of the output shaft is achieved. The hydrostatic stepless speed changing device has the advantages that a hydraulic speed changer is convenient to assemble and disassemble; noise is low, an oil outlet is formed in the cover plate, and accumulated oil cannot be generated in the speed changer; an oil complement device is added, and the hydrostatic stepless speed changer can work ceaselessly.
Description
Technical field
The utility model relates to a kind of speed change gear, relates in particular to a kind of by hydraulicdriven hydrostatic stepless speed change device.
Background technique
In traditional agriculture, the variable speed drive of farm machinery is mainly mechanical gearbox, and this gearbox is recently to realize speed change by different gear transmissions, and deficiency is: realize the engagement between different gears, so just make when engagement noise large, and inconvenient operation; When producing, also need to drop into larger tooling device, many enterprises can only produce a kind of parts wherein, have just limited the production of mechanical transmission; And complicated structure, maintenance is inconvenient.
On farm machinery, also progressively using hydraulic transformer now, but the hydraulic product of China especially throughput of new high-tech product is also not enough, and some crucial hydraulic element also need import, and this has just restricted the development of the hydraulic-gear of China, and complex structure, be also not easy dismounting.
Model utility content
the technical problems to be solved in the utility model is to provide a kind of hydrostatic stepless speed change device of easy to process, easy accessibility.
For solving the problems of the technologies described above, the solution that the hydrostatic stepless speed change device of the utility model adopts is:
The structure of hydrostatic stepless speed change device is: comprise housing, cover plate, swash plate, driveshaft, input shaft, output shaft, one-way valve a; Described swash plate, input shaft, output shaft, one-way valve a are arranged on enclosure interior, and cover plate is arranged on housing bottom;
Described one-way valve a structure is: comprise valve body a, spring a, flap a; Described valve body a inner sleeve has flap a, mounting spring a in flap a, and the two ends of spring a withstand on respectively the inner side of valve body a and flap a; Described valve body a makes gear type in outside, and bottom has through hole;
Described input shaft, output shaft are multidiameter shaft, and insert on the cover board one end, and the other end is inserted on housing; Make gear type for one section on described input shaft, output shaft, by gear and one-way valve a, mesh;
Described swash plate is enclosed within on output shaft, input shaft, and a side contacts with flap a, and by spring, a is pressed in shell inner surface by another side; Described driveshaft contacts with the swash plate being enclosed within on output shaft, controls the true dip direction of swash plate by the rotation of driveshaft;
Its innovative point is: described housing has input shaft bore at the corresponding position of input shaft, and input shaft is through input shaft bore;
Described in cover plate both sides, in input shaft bore outside, be drilled with hole a, two hole a communicate, and at the described two hole a position that communicates, have replenishment pump oil inlet hole; Described replenishment pump oil inlet hole left and right sides sustained height also has hole b, and hole b communicates with hole a; Cover plate one side is drilled with blind hole c to inside in output shaft outside, has hole d with hole b aligned position, and hole d communicates with blind hole c; Described cover plate inside has arc oil groove and straight line oil groove, described arc oil groove positions is the inswept position of through hole around input shaft, output shaft central rotation valve body a in the time of a week by one-way valve 1, straight line oil groove is communicated with the arc oil groove in diaxon axial connecting line one side, described straight line oil groove and arc oil groove are tangent, on described cover plate, have hole e, hole e communicates with replenishment pump oil inlet hole.
On this basis, on described housing, one-way valve b is also installed; Described one-way valve b structure is: flap b is cylindrical, and there is flange intermediate portion, and one end of described flap b is injected in the hole e of cover plate, and spring b one end is enclosed within the other end of flap b, and housing is pressed in one end.
On this basis, the part that described input shaft, output shaft are exposed at outside is provided with bearing, seal ring, end cap from inside to outside; At the position contacting with cover plate, axle sleeve is installed, outside is also provided with seal ring, end cap.
On this basis, on described cover plate, also have oil outlet.
On this basis, wear plate is also installed between described swash plate and housing, wear plate is enclosed within on output shaft, and outer end is the imitated structure of housing inner side surface, the imitated structure that inner side is swash plate.
On this basis, described hull outside is outwards dispersed and is distributed with radiating fin along input shaft bore, output shaft hole.
The beneficial effects of the utility model: advantage of the present utility model is as follows: 1, housing has through hole at the corresponding position of input shaft, output shaft, input shaft, output shaft, through through hole, make this hydraulic transformer more convenient when dismounting like this; 2, one-way valve b is installed on repairing hole, makes to be unlikely to oil return when repairing; 3, be on the cover board drilled with oil outlet, so being just unlikely to makes inner chamber produce long-pending oil.
Accompanying drawing explanation
Figure 1 shows that the side sectional view of the hydrostatic stepless speed change device of the utility model.
Figure 2 shows that the plan view of the hydrostatic stepless speed change device of the utility model.
It described in Fig. 3, is the side sectional view of the housing of the hydrostatic stepless speed change device of the utility model.
Figure 4 shows that the sectional view of the cover plate of the hydrostatic stepless speed change device of the utility model.
Embodiment
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
The utility model is by forming with lower member: housing 10, cover plate 20, swash plate 30, driveshaft 40, input shaft 50, output shaft 60, one-way valve a70.
As shown in Figure 1, Figure 2, Figure 3 shows, the structure of hydrostatic stepless speed change device is: cover plate 20 is arranged on the bottom surface of housing 10, is threaded connection; Input shaft 50 and output shaft 60 are also installed between housing 10 and cover plate 20, input shaft 50 and output shaft 60 are all through cover plate 20, and through input shaft bore 11 and the output shaft hole 12 on housing 10, bearing 51, seal ring 52 and end cap 53 are installed successively from inside to outside on the input shaft 50 of housing 10 outsides, and on the output shaft 60 in housing 10 outsides, once mounting has bearing 61, seal ring 62, end cap 63 from inside to outside.In the middle of end cap 63, have sky, the size in this hole and output shaft 60 measure-alike, the object that seal ring 62 and seal ring 52 are installed is in order to prevent leakage of oil, the object of installation bearing 51, bearing 61 is in order to play the effect of support.
In the inside of housing 10, make respectively gear shape for one section of input shaft 50, output shaft 60.The structure of one-way valve a70 is that valve body a71 inner sleeve has flap a73, mounting spring a72 in flap a73, and the two ends of spring a72 withstand on respectively the inner side of valve body a71 and flap a71; Described valve body a71 makes gear type in outside, with the gear engagement of output shaft 60 and input shaft 50; The bottom of valve body a71 has through hole 74.
Input shaft 50 and output shaft 60 are also set with swash plate 30 between one-way valve a70 and housing 10, between swash plate 30 and housing 10, wear plate 80 is also installed, wear plate 80 is enclosed within on output shaft 60, and outer end is the imitated structure of housing 10 inner side surfaces, and inner side is the imitated structure of swash plate 30.Swash plate 30 contacts with driveshaft 40, controls the true dip direction of swash plate 30 by rotariling actuate bar 40, and the pressure of opening of controlling output shaft 60 both sides one-way valve a70 with this, realizes the change of output shaft 60 sense of rotation.
As shown in Figure 4, the structure of cover plate 20 is: in cover plate 20 both sides, input shaft bore 11 outsides are drilled with hole a21, and two hole a21 communicate, and at the described two hole a21 position that communicates, has replenishment pump oil inlet hole 22; Described replenishment pump oil inlet hole 22 left and right sides sustained heights also have hole b23, and b23Yu hole, hole a21 communicates; Cover plate 20 1 sides are drilled with blind hole c24 to inside in output shaft hole 12 outsides, have hole d25 with hole b23 aligned position, and hole d25 communicates with blind hole c24; Described cover plate 20 inside have arc oil groove 26 and straight line oil groove 27, described arc oil groove 26 positions are the inswept position of through hole 74 around input shaft 50, output shaft 60 central rotation valve body a71 in the time of a week by one-way valve a70, straight line oil groove 27 is communicated with the arc oil groove in diaxon axial connecting line one side 26, described straight line oil groove 27 is tangent with arc oil groove 26, on described cover plate 20, have hole e28, hole e28 communicates with replenishment pump oil inlet hole 22.On cover plate 20, also have oil outlet 29.
One-way valve b90 is also installed on housing 10; Described one-way valve b90 structure is: flap b91 is cylindrical, and there is flange 92 intermediate portion, and one end of described flap b91 is injected in the hole e28 of cover plate 20, and spring b93 one end is enclosed within the other end of flap b91, and housing 10 is pressed in one end.
Working principle: under external motor drives, input shaft 10 drives one-way valve a70 rotation, by hydraulic oil from sucking-off in the oil groove of a side, and be expressed to opposite side, now not etc., output shaft 60 does not rotate the oil pressure of output shaft 60 both sides under the driving of hydraulic oil, forms output.Now hydraulic oil is realized the circulation of hydraulic oil by the straight line oil groove 27 in cover plate 20 and arc oil groove 26.
Claims (6)
1. a hydrostatic stepless speed change device, comprises housing, cover plate, swash plate, driveshaft, input shaft, output shaft, one-way valve a; Described swash plate, input shaft, output shaft, one-way valve a are arranged on enclosure interior, and cover plate is arranged on housing bottom;
Described one-way valve a structure is: comprise valve body a, spring a, flap a; Described valve body a inner sleeve has flap a, mounting spring a in flap a, and the two ends of spring a withstand on respectively the inner side of valve body a and flap a; Described valve body a makes gear type in outside, and bottom has through hole;
Described input shaft, output shaft are multidiameter shaft, and insert on the cover board one end, and the other end is inserted on housing; Make gear type for one section on described input shaft, output shaft, by gear and one-way valve a, mesh;
Described swash plate is enclosed within on output shaft, input shaft, and a side contacts with flap a, and by spring, a is pressed in shell inner surface by another side; Described driveshaft contacts with the swash plate being enclosed within on output shaft, controls the true dip direction of swash plate by the rotation of driveshaft;
It is characterized in that: described housing has input shaft bore at the corresponding position of input shaft, input shaft is through input shaft bore;
Described in cover plate both sides, in input shaft bore outside, be drilled with hole a, two hole a communicate, and at the described two hole a position that communicates, have replenishment pump oil inlet hole; Described replenishment pump oil inlet hole left and right sides sustained height also has hole b, and hole b communicates with hole a; Cover plate one side is drilled with blind hole c to inside in output shaft outside, has hole d with hole b aligned position, and hole d communicates with blind hole c; Described cover plate inside has arc oil groove and straight line oil groove, described arc oil groove positions is the inswept position of through hole around input shaft, output shaft central rotation valve body a in the time of a week by one-way valve a, straight line oil groove is communicated with the arc oil groove in diaxon axial connecting line one side, described straight line oil groove and arc oil groove are tangent, on described cover plate, have hole e, hole e communicates with replenishment pump oil inlet hole.
2. hydrostatic stepless speed change device according to claim 1, is characterized in that: one-way valve b is also installed on described housing; Described one-way valve b structure is: flap b is cylindrical, and there is flange intermediate portion, and one end of described flap b is injected in the hole e of cover plate, and spring b one end is enclosed within the other end of flap b, and housing is pressed in one end.
3. hydrostatic stepless speed change device according to claim 2, is characterized in that: the part that described input shaft, output shaft are exposed at outside is provided with bearing, seal ring, end cap from inside to outside; At the position contacting with cover plate, axle sleeve is installed, outside is also provided with seal ring, end cap.
4. hydrostatic stepless speed change device according to claim 3, is characterized in that: on described cover plate, also have oil outlet.
5. hydrostatic stepless speed change device according to claim 4, is characterized in that: wear plate is also installed between described swash plate and housing, and wear plate is enclosed within on output shaft, and outer end is the imitated structure of housing inner side surface, the imitated structure that inner side is swash plate.
6. hydrostatic stepless speed change device according to claim 1, is characterized in that: described hull outside is outwards dispersed and is distributed with radiating fin along input shaft bore, output shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805847.8U CN203585250U (en) | 2013-12-10 | 2013-12-10 | Hydrostatic stepless speed changing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805847.8U CN203585250U (en) | 2013-12-10 | 2013-12-10 | Hydrostatic stepless speed changing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585250U true CN203585250U (en) | 2014-05-07 |
Family
ID=50583179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805847.8U Expired - Lifetime CN203585250U (en) | 2013-12-10 | 2013-12-10 | Hydrostatic stepless speed changing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585250U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570421A (en) * | 2016-01-13 | 2016-05-11 | 南通爱慕希机械股份有限公司 | Hydrostatic stepless speed change device |
| CN105773826A (en) * | 2016-03-15 | 2016-07-20 | 安庆市达东电子科技有限公司 | Module for preventing idling of oil pump of hydraulic demoulding machine |
| CN105202179B (en) * | 2015-08-26 | 2017-10-10 | 浙江奥威特液压机械有限公司 | A kind of hydrostatic stepless speed change device |
| CN105570421B (en) * | 2016-01-13 | 2024-04-16 | 南通爱慕希机械股份有限公司 | Hydrostatic stepless speed change device |
-
2013
- 2013-12-10 CN CN201320805847.8U patent/CN203585250U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105202179B (en) * | 2015-08-26 | 2017-10-10 | 浙江奥威特液压机械有限公司 | A kind of hydrostatic stepless speed change device |
| CN105570421A (en) * | 2016-01-13 | 2016-05-11 | 南通爱慕希机械股份有限公司 | Hydrostatic stepless speed change device |
| CN105570421B (en) * | 2016-01-13 | 2024-04-16 | 南通爱慕希机械股份有限公司 | Hydrostatic stepless speed change device |
| CN105773826A (en) * | 2016-03-15 | 2016-07-20 | 安庆市达东电子科技有限公司 | Module for preventing idling of oil pump of hydraulic demoulding machine |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |