CN204900732U - Hydrostatic infinitely variable device - Google Patents
Hydrostatic infinitely variable device Download PDFInfo
- Publication number
- CN204900732U CN204900732U CN201520650485.9U CN201520650485U CN204900732U CN 204900732 U CN204900732 U CN 204900732U CN 201520650485 U CN201520650485 U CN 201520650485U CN 204900732 U CN204900732 U CN 204900732U
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- pump
- plunger
- variable
- motor
- quantitative
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Abstract
The utility model discloses a hydrostatic infinitely variable device, including variable piston pump, quantitative piston motor and high -pressure overflow valve subassembly, variable piston pump's discharge capacity and motor rotating direction are connected in variable piston pump with slippage pump, filter, high -pressure overflow valve subassembly by cradle angel position control, oil inlet, and variable piston pump communicates with each other with quantitative piston motor oil circuit the device casing is equipped with the strengthening rib. Compared with the prior art, the utility model discloses a hydrostatic infinitely variable device has changed traditional gear change mode, can convert mechanical energy into by hydraulic pressure, realizes infinitely variable, has improved the conversion rate of work efficiency and energy, has installed the strengthening rib on the device casing to making device intensity greatly increased, making the reinforcing of whole hydrostatic infinitely variable device shock resistance, make its life -span longer, the performance is more stable.
Description
Technical field
The utility model relates to engineering machinery actuation techniques field, is specifically related to a kind of hydrostatic stepless speed changes devices.
Background technique
In traditional agriculture, the variable speed drive of farm machinery is mainly mechanical gearbox, this gearbox realizes speed change by different gear ratio, its shortcoming existed: the engagement between different gear be realized, so just make the noise when engaging very large, and inconvenient operation, when producing, also need to drop into larger tooling device, many enterprises can only produce wherein one in parts, just limit the production of mechanical gear box, and mechanical gearbox complicated structure, maintenance is also inconvenient.
Present farm machinery is also progressively using hydraulic transformer, but the quick rotation vibrations of those hydraulic-gears operationally due to motor are comparatively strong, shake-proof ability is poor, and impact also reduces the working life of hydraulic-gear while using.
Model utility content
The utility model object is to provide a kind of hydrostatic stepless speed changes devices, comparatively strong to solve the quick rotation vibrations of hydraulic-gear operationally due to motor in prior art, shake-proof ability is poor, impact also reduces the technical bug in the working life of hydraulic-gear etc. while using.
The technical solution of the utility model is achieved in that
A kind of hydrostatic stepless speed changes devices, comprise the device case being provided with filler opening and drain tap, described device case inside is provided with pump drive shaft, motor drive shaft, described pump drive shaft is connected with Variable plunger pump, described motor drive shaft is connected with quantitative plunger motor, described Variable plunger pump is connected with the reel cage of controllable motor transmission shaft sense of rotation and rotational speed, filler opening is by high pressure kicks valve assembly link variable plunger pump, quantitative plunger motor connects drain tap, Variable plunger pump communicates with the oil circuit of quantitative plunger motor, described device case is provided with stiffening rib.
Preferably, the oil circuit part that described filler opening is connected with Variable plunger pump is provided with slippage pump.
Preferably, described Variable plunger pump and quantitative plunger motor all comprise plunger and cylinder body respectively, described plunger is arranged in cylinder body and also can slides up and down in cylinder body, described plunger is provided with piston shoes, piston shoes basal sliding abuts to be had to push pedal, piston shoes offer bottom groove, and described bottom groove is provided with the hydraulic fluid port be communicated with oil circuit in plunger, and this hydraulic fluid port passes to piston shoes and abuts place to push pedal.
Preferably, the oil circuit part that described filler opening is connected with Variable plunger pump is also provided with hydraulic oil filter.
Compared with prior art, the utility model has following beneficial effect:
Hydrostatic stepless speed changes devices of the present utility model, change traditional gear graduation mode, mechanical energy is converted to by hydraulic energy, thus realize stepless change, improve the conversion ratio of working efficiency and energy, stiffening rib has been installed on the device housing, thus device intensity is increased greatly, whole hydrostatic stepless speed changes devices shake-proof ability is strengthened, and longer service life, performance is more stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hydrostatic stepless speed changes devices of the utility model;
Fig. 2 is the A portion enlarged view of Fig. 1;
Fig. 3 is the device shell structure schematic diagram of the hydrostatic stepless speed changes devices of the utility model;
Fig. 4 is the another side view of Fig. 3.
In figure: device case 1, filler opening 2, drain tap 3, pump drive shaft 4, motor drive shaft 5, Variable plunger pump 6, quantitative plunger motor 7, reel cage 8, reel cage adjustable lever 9, stiffening rib 10, slippage pump 11, plunger 12, cylinder body 13, piston shoes 14, to push pedal 15, bottom groove 16, lubrication hydraulic fluid port 17, hydraulic oil filter 18, high pressure kicks valve assembly 19.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the utility model is clearly and completely described.
As shown in Figures 1 to 4, a kind of hydrostatic stepless speed changes devices, a kind of hydrostatic stepless speed changes devices, comprise the device case 1 being provided with filler opening 2 and drain tap 3, filler opening 2 is connected hydraulic oil container with drain tap 3 respectively in the outside of device case 1, described device case inside is provided with pump drive shaft 4, motor drive shaft 5, described pump drive shaft 4 is connected with the power equipments such as motor, described pump drive shaft 4 is connected with Variable plunger pump 6, described motor drive shaft 5 is connected with quantitative plunger motor 7, wherein, Variable plunger pump 6 is when nonzero digit, the pump drive shaft 4 rotated can drive Variable plunger pump 6 oil suction, force feed, thus low pressure oil is depressed into high pressure oil, described Variable plunger pump 6 is connected with the reel cage 8 of controllable motor transmission shaft 5 sense of rotation and rotational speed, described reel cage 8 is connected with reel cage adjustable lever 9, the fuel-displaced direction of Variable plunger pump 6 mesohigh oil and the oil pressure size of high pressure oil can be realized by reel cage adjustable lever 9, described filler opening 2 is by high pressure kicks valve assembly 19 link variable plunger pump 6, thus supply low pressure oil to Variable plunger pump 6, quantitative plunger motor 7 connects drain tap 3, wherein, device case 1 is provided with two drain taps 3, can select arbitrarily to connect according to installation requirements, Variable plunger pump 6 communicates with the oil circuit of quantitative plunger motor 7, quantitative plunger motor 7 is entered after the oil pressure of Variable plunger pump 6 raises, it is movable that high pressure oil promotes quantitative plunger motor 7, thus drive motor drive shaft 5 to rotate, described device case 1 outside is provided with reel cage adjustable lever 9, described device case 1 is provided with stiffening rib 10.
The oil circuit part that described filler opening 2 is connected with Variable plunger pump 6 is provided with slippage pump 11, this device is in operation and will certainly causes the loss of hydraulic oil, be provided with slippage pump 11 avoid equipment due to the oil pressure that causes of hydraulic oil deficiency unstable, thus reduce the energy conversion efficiency between pump drive shaft 4 and motor drive shaft 5.
Described Variable plunger pump 6 all comprises plunger 12 and cylinder body 13 respectively with quantitative plunger motor 7, described plunger 12 is arranged in cylinder body 13 and also can slides up and down in cylinder body 13, described plunger 12 is provided with piston shoes 14, piston shoes 14 basal sliding abuts to be had to push pedal 15, piston shoes 14 offer bottom groove 16, described bottom groove 16 is provided with the lubrication hydraulic fluid port 17 be communicated with oil circuit in plunger 12, this lubrication hydraulic fluid port 17 passes to piston shoes 14 and abuts place to push pedal 15, makes the hydraulic oil in oil circuit can enter this abutting place and lubricates.
The oil circuit part that described filler opening 2 is connected with Variable plunger pump 6 is also provided with hydraulic oil filter 18, enter filler opening 2 hydraulic oil need to enter hydraulic oil filter 18 filter after at entering variable plunger pump 6, the quality of hydraulic oil can be ensured like this, put forward high-octane conversion efficiency.
According to the structure of hydraulic variable speed unit of the present utility model, the utility model changes traditional gear graduation mode, mechanical energy is converted to by hydraulic energy, thus realize stepless change, improve the conversion ratio of working efficiency and energy, stiffening rib has been installed on the device housing, thus device intensity is increased greatly, whole hydrostatic stepless speed changes devices shake-proof ability is strengthened, and longer service life, performance is more stable.
Claims (4)
1. a hydrostatic stepless speed changes devices, it is characterized in that, comprise the device case being provided with filler opening and drain tap, described device case inside is provided with pump drive shaft, motor drive shaft, described pump drive shaft is connected with Variable plunger pump, described motor drive shaft is connected with quantitative plunger motor, described Variable plunger pump is connected with the reel cage of controllable motor transmission shaft sense of rotation and rotational speed, filler opening is by high pressure kicks valve assembly link variable plunger pump, quantitative plunger motor connects drain tap, Variable plunger pump communicates with the oil circuit of quantitative plunger motor, described device case is provided with stiffening rib.
2. hydrostatic stepless speed changes devices as claimed in claim 1, is characterized in that, the oil circuit part that described filler opening is connected with Variable plunger pump is provided with slippage pump.
3. hydrostatic stepless speed changes devices as claimed in claim 1 or 2, it is characterized in that, described Variable plunger pump and quantitative plunger motor all comprise plunger and cylinder body respectively, described plunger is arranged in cylinder body and also can slides up and down in cylinder body, described plunger is provided with piston shoes, and piston shoes basal sliding abuts to be had to push pedal, and piston shoes offer bottom groove, described bottom groove is provided with the hydraulic fluid port be communicated with oil circuit in plunger, and this hydraulic fluid port passes to piston shoes and abuts place to push pedal.
4. hydrostatic stepless speed changes devices as claimed in claim 3, is characterized in that, the oil circuit part that described filler opening is connected with Variable plunger pump is also provided with hydraulic oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520650485.9U CN204900732U (en) | 2015-08-26 | 2015-08-26 | Hydrostatic infinitely variable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520650485.9U CN204900732U (en) | 2015-08-26 | 2015-08-26 | Hydrostatic infinitely variable device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204900732U true CN204900732U (en) | 2015-12-23 |
Family
ID=54922909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520650485.9U Active CN204900732U (en) | 2015-08-26 | 2015-08-26 | Hydrostatic infinitely variable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204900732U (en) |
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2015
- 2015-08-26 CN CN201520650485.9U patent/CN204900732U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |