CN207093704U - A kind of hydraulic mechanical stepless gearbox - Google Patents
A kind of hydraulic mechanical stepless gearbox Download PDFInfo
- Publication number
- CN207093704U CN207093704U CN201720408436.3U CN201720408436U CN207093704U CN 207093704 U CN207093704 U CN 207093704U CN 201720408436 U CN201720408436 U CN 201720408436U CN 207093704 U CN207093704 U CN 207093704U
- Authority
- CN
- China
- Prior art keywords
- gear
- variable pump
- hydraulic
- variable
- engages
- Prior art date
- 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
Links
Landscapes
- Structure Of Transmissions (AREA)
Abstract
The utility model discloses a kind of hydraulic mechanical stepless gearbox, is made up of hydraulic means, gear drive and automatic control system.Hydraulic means includes 2 fuel tanks and 2 variable pumps, is connected between fuel tank and variable pump with oil pipe.Gear drive includes 2 differential mechanisms, output gear, input gear, 5 transfer gears.Automatic control system includes velocity sensor, processor.The speed changer has the following effects：1st, sensor sensing is to the speed of input gear axle and then the discharge capacity of control variable pump is so as to reach the purpose of control differential input shaft speed discrepancy, and reaches the effect of control output rotating speed with this；2nd, in order to improve the control accuracy of whole device and practicality, also spraying lubricating device and the noise-decreasing device of variable pump noise is reduced.
Description
Technical field
A kind of hydraulic mechanical stepless gearbox is the utility model is related to, belongs to Hydrostatic-mechanical Transmission field.
Background technology
Decelerator plays a part of matching rotating speed and transmits moment of torsion in prime mover and working machine or executing agency's product, existing
For being widely used in Machine Design.
Existing speed changer mainly has mechanical, three kinds of speed changers of fluid pressure type and hydraulic stepless.Wherein mechanical stepless becomes
Fast device uses friction-type drive mostly, and bearing capacity is relatively low, and overload-resistant and impact resistance is poor, and friction member service life is shorter etc.
Shortcoming.When operating oil leak easily occurs for Hyaulic infinite variable speed device and transmission efficiency is relatively mechanical low.Hydraulic continuously variable transmission fills
Divide the advantages of combining both the above speed changer, but as modern mechanical is to automation, the demand of easy, thus it is badly in need of one
The variable speed that kind incorporates automatic control system carrys out the maximized precision for improving speed changer.
Utility model content
Purpose of utility model：The utility model purpose is in view of the shortcomings of the prior art, there is provided it is a kind of compact-sized, if
Meter is reasonable, and easy to operate can realize the change quick-mounting of vehicle automatic stepless speed change according to driver intention and outer load change
Put.Solve the problems, such as that conventional transmissions automation is low, volume is big, transmission efficiency is low, accuracy is low.
Technical scheme：In order to solve mechanically with problem present in hydraulic transmission, wood invention is to use following skill
Art scheme：It includes differential mechanism, volume adjustable hydraulic pump, flowline, oil inlet pipe, processor, sensor, travelling gear.The differential
Transfer gear is fixed with the both sides output shaft of device, the output shaft of differential mechanism both sides is connected on volume adjustable hydraulic pump, variable
The upper end of hydraulic pump is connected to fuel tank oil outlet end by oil inlet pipe respectively, is connected to respectively by flowline on the outside of volume adjustable hydraulic pump
Fuel tank, there is gear on the rotational shell of differential mechanism, and upper end is engaged with input gear, and biography is fixed with the input shaft of differential mechanism both sides
Lead gear and with transfer gear and engaging, gear also is provided with the rotational shell of differential mechanism and is engaged with output gear.
Noise-decreasing device is equipped with the utility model variable pump, to reduce the noise brought when variable pump work
The utility model adds automatic control system in traditional hydraulic continuously variable transmission, reduces to greatest extent
The error that hydraulic system is brought with mechanical system, improve the precision of speed changer.
Beneficial effect：It combines the characteristics of hydraulic pressure and gear, avoids hydrostatic buncher, mechanical stepless speed-changing
The drawbacks of device, and mainly due to the addition of automatic control system, be allowed to realize automation, small volume, transmission efficiency, essence
The characteristics of exactness is high.
Brief description of the drawings
Fig. 1 is a kind of hydraulic mechanical stepless gearbox structural representation.
In Fig. 1：1- processors；2- output gears；The transfer gears of 3- first；The transfer gears of 4- second；5- the 3rd conducts tooth
Wheel；The variable pumps of 6- first；The oil inlet pipes of 7- first；The fuel tanks of 8- first；The flowlines of 9- first；The differential mechanisms of 10- first；11- inputs tooth
Wheel；12- noise-decreasing devices；13- velocity sensors；The transfer gears of 14- the 4th；The flowlines of 15- second；The fuel tanks of 16- second；17-
Two oil inlet pipes；The variable pumps of 18- second；The transfer gears of 19- the 5th；The differential mechanisms of 20- second.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing, but protection scope of the present invention is not limited to
The embodiment.
A kind of hydraulic mechanical stepless gearbox, it is made up of hydraulic means, gear drive and automatic control system.Institute
State gear drive to engage with the shell gear of the first differential mechanism 10 including input gear 11, the both sides of the first differential mechanism 10 are defeated
The 3rd transfer gear 5 and the 4th transfer gear 14 are respectively fixed with shaft, the 3rd transfer gear 5 is nibbled with the second transfer gear 4
Close, the 4th transfer gear 14 engages with the 5th transfer gear 19.Wherein, the 5th transfer gear 19 is distinguished with the first transfer gear 3
It is fixed on the output shaft of the second differential mechanism 20, and the first transfer gear 3 engages with the second transfer gear 4.Second differential
The shell of device 20 engages provided with gear with output gear 2.The feature of the hydraulic system and automatic control system is：Velocity sensor
13 are positioned on input gear 11, and the first variable pump 6 is connected by the first oil inlet pipe 7 and the first flowline 9 with the first fuel tank 8,
Second variable pump 18 is connected by the second oil inlet pipe 17 and the second flowline 15 with the second fuel tank 16.Processor 1 is from velocity pick-up
Device 13 reflects data onto the first variable pump 6 and the second variable pump 18 after sensing data, with turning for two variable pumps of control
Speed difference.12 be noise-decreasing device, for mitigating noise when the first variable pump 6 and the second variable pump 18 work.
Input gear 11 drives the shell rotation of the first differential mechanism 10, so as to drive both sides output shaft rotation, then passes through
The engagement of each gear, so as to drive the both sides input shaft rotation of the second differential mechanism 20, due to the presence of the second transfer gear 4, the
The both sides input shaft direction of rotation of two differential mechanisms 20 is opposite, so the rotational shell of the second differential mechanism 20 is very fast towards rotating speed
An input shaft identical direction rotate, shell rotation speed and two all input speeds difference it is directly proportional, in two axles
When rotating speed is equal, shell does not rotate.Because output gear 2 engages with the rotational shell of the second differential mechanism 20, so power will be through
Output gear 2 passes.The main function of processor 1 and velocity sensor 13 is to experience the change of input speed so as to reach
The speed discrepancy of two variable pumps is accurately controlled, so as to control the speed discrepancy of two axles of the second differential mechanism 20, so as to reach control
The purpose of output gear rotating speed processed.Because gearratio is to first pass through the first differential mechanism 10 to shunt, then again in the second differential mechanism 20
Interflow, so overall power will not change, thus, moment of torsion would not be widely varied.In addition, in order to solve hydraulic pressure
In system the problem of variable pump operating noise, noise-decreasing device 12 is added.And due to hydraulic means be not involved in itself it is overall
Transmission, only play a part of the output shaft energy distribution of the first differential mechanism 10.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, but it must not be explained
For to the limitation of itself of the invention., can be right under the premise of the spirit and scope of the present invention that appended claims define are not departed from
Various changes can be made in the form and details for it.
Claims (2)
1. a kind of hydraulic mechanical stepless gearbox, being made up of hydraulic means, gear drive and automatic control system, it is special
Sign is：The gear drive engages including input gear (11) with the shell gear of the first differential mechanism (10), and first is poor
The 3rd transfer gear (5) and the 4th transfer gear (14), the 3rd conduction tooth are respectively fixed with the both sides output shaft of fast device (10)
Wheel (5) engages with the second transfer gear (4), and the 4th transfer gear (14) engages with the 5th transfer gear (19)；Wherein, the 5th pass
Gear (19) is led to be fixed on respectively on the output shaft of the second differential mechanism (20) with the first transfer gear (3), and the first conduction
Gear (3) engages with the second transfer gear (4)；Second differential mechanism (20) shell engages provided with gear with output gear (2)；It is described
Hydraulic means and automatic control system are included on velocity sensor (13) and input gear (11), and the first variable pump (6) passes through the
One oil inlet pipe (7) and the first flowline (9) are connected with fuel tank (8), and the second variable pump (18) passes through the second oil inlet pipe (17) and
Two flowlines (15) are connected with the second fuel tank (16)；Processor (1) from velocity sensor (13) sense data after data are anti-
Reflect onto the first variable pump (6) and the second variable pump (18), to control the speed discrepancy of two variable pumps；Noise-decreasing device (12) is used for
Mitigate noise when the first variable pump (6) and the second variable pump (18) work.
2. hydraulic mechanical stepless gearbox according to claim 1, it is characterized in that passing through velocity sensor and processor control
System processed combines, and controls the discharge capacity of volume adjustable hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408436.3U CN207093704U (en) | 2017-04-17 | 2017-04-17 | A kind of hydraulic mechanical stepless gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408436.3U CN207093704U (en) | 2017-04-17 | 2017-04-17 | A kind of hydraulic mechanical stepless gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093704U true CN207093704U (en) | 2018-03-13 |
Family
ID=61544859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720408436.3U Expired - Fee Related CN207093704U (en) | 2017-04-17 | 2017-04-17 | A kind of hydraulic mechanical stepless gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093704U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201451A1 (en) * | 2022-04-18 | 2023-10-26 | 林武光 | Hydraulic continuously variable transmission |
-
2017
- 2017-04-17 CN CN201720408436.3U patent/CN207093704U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023201451A1 (en) * | 2022-04-18 | 2023-10-26 | 林武光 | Hydraulic continuously variable transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101408244B (en) | Mechanical hydraulic stepless speed changer and method and vehicle mechanical hydraulic stepless speed changer | |
| CN205780633U (en) | A kind of novel isolated conjunction two speed transmission | |
| JP2974083B2 (en) | Hydrostatic-Control device for mechanical transmission | |
| CN207093704U (en) | A kind of hydraulic mechanical stepless gearbox | |
| CN2252274Y (en) | Hydraulic planetary buncher | |
| CN201241945Y (en) | Speed variator for small-sized engineering machinery | |
| CN103303116B (en) | Single power of motor shunting coupling speed change system | |
| CN207111873U (en) | Hydraulic machinery stepless speed change device mechanical gear box | |
| CN206426760U (en) | A kind of maize harvesting machine front driving axle assembly | |
| CN203537892U (en) | Traveling stepless speed change device of corn combined harvester | |
| CN103115128B (en) | Modular design stepless with have a grade compound transmission | |
| CN206329704U (en) | A kind of buncher based on hydraulic system and gear train assembly | |
| CN85107332A (en) | Speed-changing device for hydraulic mechanism | |
| CN207598844U (en) | Hydraulic machinery stepless speed change device | |
| CN201963811U (en) | Automatic shift two-speed speed changing box and wheel-mounted crane thereof | |
| CN104494425B (en) | A kind of variator with transfer case | |
| CN206360696U (en) | One kind is based on hydraulic closed transmission system variable speed winning machine cutting part | |
| CN101863433A (en) | Full hydraulic driving forklift driven by double static pressure motor | |
| CN201882864U (en) | Full hydraulic transmission forklift driven by double static-pressure motors | |
| CN101201096A (en) | Planetary multilevel gear drive mechanism | |
| CN104088973B (en) | A kind of buncher of gear drive Hydraulic Adjustable Speed | |
| CN104455302B (en) | Agricultural machine gearbox internally provided with hydraulic wet clutches | |
| CN107131277A (en) | Machine liquid composite transmission based on Stress control | |
| CN104358853B (en) | The speed change input constant speed output device of hydraulic pressure regulation double with servomotor | |
| CN212354145U (en) | Steering wheel control crawler steering mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20190417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |