CN104819261A - Hydraulic speed reducing device - Google Patents
Hydraulic speed reducing device Download PDFInfo
- Publication number
- CN104819261A CN104819261A CN201510095657.5A CN201510095657A CN104819261A CN 104819261 A CN104819261 A CN 104819261A CN 201510095657 A CN201510095657 A CN 201510095657A CN 104819261 A CN104819261 A CN 104819261A
- Authority
- CN
- China
- Prior art keywords
- oil hydraulic
- oil
- fuel tank
- hydraulic pump
- hydraulic motor
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H41/00—Rotary fluid gearing of the hydrokinetic type
- F16H41/02—Rotary fluid gearing of the hydrokinetic type with pump and turbine connected by conduits or ducts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the technical field of speed reducers, in particular to a hydraulic speed reducing device, proposes a speed reducing scheme realized by utilizing a hydraulic transmission principle, and designs a hydraulic speed reducing device. The device realizes a speed reducing function through the cooperation of a hydraulic pump and a hydraulic motor, and obtains the needed rotating speed and torsional moment; and a speed reducing principle is a displacement difference of the hydraulic pump and the hydraulic motor. The device can realize a wider speed adjusting range, can realize actions of forward rotation, reverse rotation and rotation stop, and has stepless speed adjusting and overload protecting functions.
Description
Technical field
This patent relates to retarder technical field; special a kind of hydraulic reduction gear; propose the deceleration scheme that a kind of hydraulic transmission principle realizes; and devise hydraulic reduction gear, this device by oil hydraulic pump and oil hydraulic motor with the use of realizing deceleration, the rotating speed needed for acquisition and torsional moment; deceleration principle is that the discharge capacity of oil hydraulic pump and oil hydraulic motor is poor; this device can realize very large speed adjustable range, can realize rotating forward, reversing and stall action, also possesses stepless speed regulation and overload protection function.
Background technique
Retarder is a kind of middle device connecting power source and actuator, and the object using retarder is to obtain lower rotating speed, increases torque; Retarder has in the every field of industry and uses widely, and the industry fields such as light industry, building machinery, metallurgical machinery, mining machinery, chemical machinery, building material machinery, petroleum machinery all have vigorous demand to retarder; Traditional gear reducer and worm type of reduction gearing utilize Principles of Gear Connection realization to fall slow-revving, and it is large that they have relative volume, and velocity ratio is non-adjustable, is not easy to realize the shortcomings such as digitizing.
This patent proposes the solution that a kind of hydraulic transmission realizes slowing down, and devises special reducer arrangement, and by using hydraulic transmission, this device has following characteristics:
(1) this device by oil hydraulic pump and oil hydraulic motor with the use of, achieve very large-scale stepless speed governing, to obtain required rotating speed and torque.
(2) there is rotating forward, reversion, stall off-load and overload protection function.
(3) this device can real-time monitoring system pressure and input output rotating speed, the integrated layout of control switch, for realizing automatically controlling to lay a good foundation.
(4) if use variable displacement pump and variable displacement motor, this device can realize speed wider more flexibly and regulate.
(5) this device critical piece oil hydraulic pump and oil hydraulic motor all belong to standard product, without the need to specialized designs, are easy to realize producing in enormous quantities, exploitation series product.
(7) device realizes selflubricating by hydraulic oil.
(8) plant running is steady, impacts, noise is little.
Summary of the invention
Described device comprises upper-lower casing, oil hydraulic pump, oil hydraulic motor, fuel tank and valve assembly; Oil hydraulic pump, oil hydraulic motor, fuel tank and valve assembly are arranged in the inner chamber of upper-lower casing composition; Oil hydraulic pump, oil hydraulic motor lay respectively at inner chamber two ends, fuel tank and valve assembly are positioned in the middle of the inner chamber of upper-lower casing composition, oil hydraulic pump connects input shaft, oil hydraulic motor connects output shaft, oil hydraulic pump is received on fuel tank by oil pipe, be connected by oil pipe between oil hydraulic pump with oil hydraulic motor, oil hydraulic motor takes back fuel tank, forms loop; The valve assembly of control system pressure and flow is provided with between oil hydraulic pump and oil hydraulic motor, valve assembly comprises relief valve, one-way valve, series flow control valve and solenoid directional control valve, relief valve one end is connected with fuel tank, the other end is connected with series flow control valve, the pipeline that oil hydraulic pump is connected with fuel tank is provided with one-way valve, oil hydraulic pump is connected with series flow control valve, and series flow control valve is connected with solenoid directional control valve, and solenoid directional control valve and oil hydraulic motor are connected to form loop.
There is discharge capacity difference in oil hydraulic pump and oil hydraulic motor itself, deceleration is achieved, and in using process, user is flowed to by regulation relief valve and series flow control valve control system fluid, makes part fluid flow back to fuel tank by relief valve, and the speed realizing oil hydraulic motor regulates.
Further, the pipeline that fuel tank is connected with one-way valve is provided with oil purifier.
Further, fuel tank is provided with level meter.
Further, oil hydraulic pump and oil hydraulic motor are respectively equipped with tachometer.
Further, the pipeline that relief valve is connected with fuel tank is provided with pressure gauge.
Further, described upper-lower casing is fixedly connected with pairing nut by bolt group.
Further, described upper shell is provided with display and control unit.
Its oil circuit action is as follows:
Just or reversion:
Oil-feed: on fuel tank → oil purifier → one-way valve → oil hydraulic pump → series flow control valve → solenoid directional control valve or bottom → oil hydraulic motor;
Oil return: on oil hydraulic motor → solenoid directional control valve or bottom → fuel tank;
When solenoid directional control valve is positioned at meta, output shaft stall, oil hydraulic pump off-load.
The slowing down power(SDP) of device depends on the discharge capacity of oil hydraulic pump and oil hydraulic motor, if the discharge capacity of oil hydraulic pump and oil hydraulic motor is V
1, V
2, input end rotational speed omega
1, output terminal rotational speed omega
2, when disregarding loss, the maximum transmission ratio of device:
i
max=ω
2/ω
1=V
2/V
1
This device can realize interval [0, i
max] velocity ratio change, the scope of output speed is [0, ω
1* i].
Accompanying drawing explanation
Fig. 1 hydraulic principle figure.
1-fuel tank; 2-level meter; 3-relief valve; 4-oil purifier; 5-one-way valve; 6-oil hydraulic pump; 7-pressure gauge; 8-tachometer; 9-series flow control valve; 10-solenoid directional control valve; 11-oil hydraulic motor; 12-tachometer.
Fig. 2 apparatus structure schematic diagram.
Fig. 3 apparatus structure explosive view.
13-lower shell body; 14-upper shell; 6-oil hydraulic pump; 11-oil hydraulic motor; 15-fuel tank and valve assembly; 16-display and control unit; 17-bolt group; 18-matches nut.
Embodiment
(1) be correctly arranged between power source and operation mechanism by hydraulic reduction gear, power source is connected with oil hydraulic pump input shaft, and operation mechanism is connected with hydraulic motor output shaft.
(2) testing fixture sealing situation, checks fuel level in tank, starts power source, makes solenoid directional control valve be in meta, no-load running, testing fixture runnability.
(3) if plant running is good, to be placed in by solenoid directional control valve or the next, device is just starting or reverse, regulates series flow control valve, the rotating speed of acquisition operation mechanism requirement and torque.
(4), when quitting work, power source, oil hydraulic pump and oil hydraulic motor stall is closed.
Claims (9)
1. a hydraulic reduction gear, is characterized in that: described device comprises upper-lower casing, oil hydraulic pump, oil hydraulic motor, fuel tank and valve assembly; Oil hydraulic pump, oil hydraulic motor, fuel tank and valve assembly are arranged in the inner chamber of upper-lower casing composition; Oil hydraulic pump, oil hydraulic motor lay respectively at inner chamber two ends, fuel tank and valve assembly are positioned in the middle of the inner chamber of upper-lower casing composition, oil hydraulic pump connects input shaft, oil hydraulic motor connects output shaft, oil hydraulic pump is received on fuel tank by oil pipe, be connected by oil pipe between oil hydraulic pump with oil hydraulic motor, oil hydraulic motor takes back fuel tank, forms loop; The valve assembly of control system pressure and flow is provided with between oil hydraulic pump and oil hydraulic motor, valve assembly comprises relief valve, one-way valve, series flow control valve and solenoid directional control valve, relief valve one end is connected with fuel tank, the other end is connected with series flow control valve, the pipeline that oil hydraulic pump is connected with fuel tank is provided with one-way valve, oil hydraulic pump is connected with series flow control valve, and series flow control valve is connected with solenoid directional control valve, and solenoid directional control valve and oil hydraulic motor are connected to form loop; There is discharge capacity difference in oil hydraulic pump and oil hydraulic motor itself, deceleration is achieved, and in using process, user is flowed to by regulation relief valve and series flow control valve control system fluid, makes part fluid flow back to fuel tank by relief valve, and the speed realizing oil hydraulic motor regulates.
2. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: the pipeline that fuel tank is connected with one-way valve is provided with oil purifier.
3. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: fuel tank is provided with level meter.
4. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: oil hydraulic pump and oil hydraulic motor are respectively equipped with tachometer.
5. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: the pipeline that relief valve is connected with fuel tank is provided with pressure gauge.
6. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: described upper-lower casing is fixedly connected with pairing nut by bolt group.
7. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: described upper shell is provided with display and control unit.
8. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: its oil circuit action is as follows:
Just or reversion:
Oil-feed: on fuel tank → oil purifier → one-way valve → oil hydraulic pump → series flow control valve → solenoid directional control valve or bottom → oil hydraulic motor;
Oil return: on oil hydraulic motor → solenoid directional control valve or bottom → fuel tank;
When solenoid directional control valve is positioned at meta, output shaft stall, oil hydraulic pump off-load.
9. a kind of hydraulic reduction gear as claimed in claim 1, is characterized in that: the slowing down power(SDP) of device depends on the discharge capacity of oil hydraulic pump and oil hydraulic motor, if the discharge capacity of oil hydraulic pump and oil hydraulic motor is V
1, V
2, input end rotational speed omega
1, output terminal rotational speed omega
2, when disregarding loss, the maximum transmission ratio of device:
i
max=ω
2/ω
1=V
2/V
1；
Interval [0, i can be realized
max] velocity ratio change, the scope of output speed is [0, ω
1* i].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095657.5A CN104819261A (en) | 2015-03-04 | 2015-03-04 | Hydraulic speed reducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095657.5A CN104819261A (en) | 2015-03-04 | 2015-03-04 | Hydraulic speed reducing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104819261A true CN104819261A (en) | 2015-08-05 |
Family
ID=53729669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095657.5A Pending CN104819261A (en) | 2015-03-04 | 2015-03-04 | Hydraulic speed reducing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104819261A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169246A (en) * | 1994-12-20 | 1996-07-02 | Mitsubishi Agricult Mach Co Ltd | Continuously variable transmission for traveling work machine |
| CN2335814Y (en) * | 1998-06-12 | 1999-09-01 | 熊兴勇 | Hydraulic stepless speed adjusting and heat sink device |
| CN2623963Y (en) * | 2003-05-28 | 2004-07-07 | 陆长勇 | Hydraulic stepless speed changing machine |
| CN101852283A (en) * | 2010-05-24 | 2010-10-06 | 镇江中浦冷辗科技有限公司 | Hydraulic stepless speed regulating device |
| CN201818753U (en) * | 2010-09-30 | 2011-05-04 | 黄绍忠 | Intelligent hydraulic stepless speed changer |
-
2015
- 2015-03-04 CN CN201510095657.5A patent/CN104819261A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08169246A (en) * | 1994-12-20 | 1996-07-02 | Mitsubishi Agricult Mach Co Ltd | Continuously variable transmission for traveling work machine |
| CN2335814Y (en) * | 1998-06-12 | 1999-09-01 | 熊兴勇 | Hydraulic stepless speed adjusting and heat sink device |
| CN2623963Y (en) * | 2003-05-28 | 2004-07-07 | 陆长勇 | Hydraulic stepless speed changing machine |
| CN101852283A (en) * | 2010-05-24 | 2010-10-06 | 镇江中浦冷辗科技有限公司 | Hydraulic stepless speed regulating device |
| CN201818753U (en) * | 2010-09-30 | 2011-05-04 | 黄绍忠 | Intelligent hydraulic stepless speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150805 |
|
| WD01 | Invention patent application deemed withdrawn after publication |