CN204023644U - Loading arm hydraulic system for lifting - Google Patents

Loading arm hydraulic system for lifting Download PDF

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Publication number
CN204023644U
CN204023644U CN201420470729.0U CN201420470729U CN204023644U CN 204023644 U CN204023644 U CN 204023644U CN 201420470729 U CN201420470729 U CN 201420470729U CN 204023644 U CN204023644 U CN 204023644U
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CN
China
Prior art keywords
communicated
swing arm
pipe
hydraulic
tee piece
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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
Application number
CN201420470729.0U
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Chinese (zh)
Inventor
王永卫
Original Assignee
王永卫
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Filing date
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Application filed by 王永卫 filed Critical 王永卫
Priority to CN201420470729.0U priority Critical patent/CN204023644U/en
Application granted granted Critical
Publication of CN204023644U publication Critical patent/CN204023644U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of loading arm hydraulic system for lifting, comprise fuel tank and swing arm lifting hydraulic cylinder, the rod chamber of this hydraulic cylinder is communicated with the first liquid mouth of distributing valve, and the import of distributing valve is communicated with hydraulic pump outlet; Hydraulic pump import is communicated with a mouth of pipe of the first tee piece, and another two mouths of pipe of the first tee piece promote interstage valve outlet with the first one-way valved outlet, swing arm respectively, and the first check valve inlet is communicated with fuel tank; Swing arm promotes interstage valve import and is communicated with a mouth of pipe of the second tee piece, another two mouths of pipe of the second tee piece respectively with energy storage device, swing arm decline interstage valve outlet; The import of swing arm decline interstage valve is communicated with a mouth of pipe of the 3rd tee piece, and another two mouths of pipe of the 3rd tee piece are communicated with the rodless cavity of the second one-way valved outlet, swing arm lifting hydraulic cylinder respectively; Second check valve inlet is communicated with the second liquid mouth of hydraulic distributing valve.Potential energy storage when swing arm declines by the utility model gets up to be used, thus reaches energy-conservation object.

Description

Loading arm hydraulic system for lifting
Technical field
The utility model relates to loader, especially relates to loading arm hydraulic system for lifting.
Background technology
Loader is a kind of restoration in earth-rock construction machinery being widely used in the construction projects such as highway, railway, building, water power, harbour, mine, be mainly used in the loose unpacked materials such as shovel dress soil, sandstone, lime, coal, also can make slight shovel to ore, pan soil etc. and dig operation.Because loader has, operating speed is fast, efficiency is high, mobility is good, operate the advantages such as light, therefore becomes one of main machine of restoration in earth-rock construction in engineering construction.Loader hydraulic transmission system comprises work system and steering.When wherein the swing arm hydraulic system for lifting of work system works (loader lade), make the hydraulic oil in fuel tank promote boom cylinder through distributing valve by hydraulic pump and rise shovel arm, shovel arm raising scraper bowl 2 ~ 4 meters high, after material is unloaded, fall shovel arm again, the hydraulic oil at this moment in boom cylinder is returned in fuel tank through distributing valve, so repeatedly loads and unloads, the potential energy falling shovel arm in the course of work is not utilized, and causes the very large waste of fuel oil.
Summary of the invention
The purpose of this utility model is to provide a kind of loading arm hydraulic system for lifting with energy-saving function.
For achieving the above object, the utility model can take following technical proposals:
Loading arm hydraulic system for lifting described in the utility model, comprise hydraulic oil container, swing arm lifting hydraulic cylinder, the rod chamber of described swing arm lifting hydraulic cylinder is communicated with the first liquid mouth of hydraulic distributing valve, and the inlet of described hydraulic distributing valve is communicated with hydraulic motor pump liquid outlet; Described hydraulic motor pump inlet is communicated with a mouth of pipe of the first tee piece, another two mouths of pipe of described first tee piece promote interstage valve liquid outlet with the first one way valve liquid outlet, swing arm respectively and are communicated with, and described first one way valve inlet is communicated with described hydraulic oil container; Described swing arm promotes interstage valve inlet and is communicated with a mouth of pipe of the second tee piece, and another two mouths of pipe of described second tee piece are communicated with energy storage device, swing arm decline interstage valve liquid outlet respectively; Described swing arm decline interstage valve inlet is communicated with a mouth of pipe of the 3rd tee piece, and another two mouths of pipe of described 3rd tee piece are communicated with the rodless cavity of the second one way valve liquid outlet, swing arm lifting hydraulic cylinder respectively; Described second one way valve inlet is communicated with the second liquid mouth of hydraulic distributing valve.
Described energy storage device is made up of with the gasholder be communicated with the rodless cavity of described single-rod piston cylinder by pipeline single-rod piston cylinder, and the rod chamber of described single-rod piston cylinder is communicated with by the mouth of pipe that pipeline is corresponding with described second tee piece.
Described swing arm decline interstage valve liquid outlet is communicated with a mouth of pipe of described second tee piece by the tube side of radiator.
The utility model advantage is to make full use of scraper bowl and the potential energy of shovel existing for arm when loading arm declines, and by described potential energy storage in described energy storage device, the potential energy converting and energy of storage is become the kinetic energy of swing arm lifting hydraulic cylinder when loading arm rises, thus reach energy-conservation object.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, loading arm hydraulic system for lifting described in the utility model, comprises hydraulic oil container 1, swing arm lifting hydraulic cylinder 2, the rod chamber of swing arm lifting hydraulic cylinder 2 is communicated with the first liquid mouth 4 of hydraulic distributing valve 3, and the inlet of hydraulic distributing valve 3 is communicated with hydraulic motor pump 6 liquid outlet; Hydraulic motor pump 6 inlet is communicated with a mouth of pipe of the first tee piece 7, and another two mouths of pipe of the first tee piece 7 promote interstage valve 9 liquid outlet with the first one way valve 8 liquid outlet and swing arm respectively and are communicated with, and the first one way valve 8 inlet is communicated with hydraulic oil container 1; Swing arm promotes interstage valve 9 inlet and is communicated with a mouth of pipe of the second tee piece 10, another two mouths of pipe of the second tee piece 10 respectively with the tube side outlet of energy storage device, radiator 11, the tube side import of radiator 11 is communicated with swing arm decline interstage valve 12 liquid outlet; Swing arm decline interstage valve 12 inlet is communicated with a mouth of pipe of the 3rd tee piece 13, and another two mouths of pipe of the 3rd tee piece 13 are communicated with the rodless cavity of the second one way valve 14 liquid outlet, swing arm lifting hydraulic cylinder 2 respectively; Second one way valve 14 inlet is communicated with the second liquid mouth 15 of hydraulic distributing valve 3.
The energy storage device that the utility model adopts is made up of with the gasholder 18 be communicated with the rodless cavity of single-rod piston cylinder 16 by pipeline 17 single-rod piston cylinder 16, and the rod chamber of single-rod piston cylinder 16 is communicated with a mouth of pipe of the second tee piece 10 by pipeline 19.For ease of the repair and maintenance of this energy storage device, pipeline 17 is also provided with outlet valve 20 and service valve 5.During actual manufacture, energy storage device also can adopt other can realize the form of structure of this object.
Operating principle of the present utility model is summarized as follows:
When loader rises shovel arm for the first time, hydraulic motor pump 6 makes the hydraulic oil in hydraulic oil container 1 enter hydraulic distributing valve 3 through the first one way valve 8, first tee piece 7, when rising shovel arm, hydraulic oil is dispensed to the second one way valve 14 through hydraulic distributing valve 3, the rodless cavity promotion swing arm lifting hydraulic cylinder 2 entering swing arm lifting hydraulic cylinder 2 through the 3rd tee piece 13 rises swing arm, lift scraper bowl to two high to four meters, unload the material in scraper bowl, when landing swing arm, the potential energy converting and energy of scraper bowl and shovel arm is that kinetic energy makes the hydraulic oil in swing arm lifting hydraulic cylinder 2 rodless cavity only open when loading arm is in decline state through the 3rd tee piece 13, swing arm decline interstage valve 12(by the piston of swing arm lifting hydraulic cylinder 2, other states are closed), the tube side of radiator 11 enters in the rod chamber of single-rod piston cylinder 16, promote the descent of piston of single-rod piston cylinder 16, the kinetic energy storage that scraper bowl and shovel arm land by the gas in compression gasholder 18, when loader rises shovel arm again, swing arm lifting interstage valve 9 is opened and (is only opened when loading arm is in raised configuration, other states are closed), Compressed Gas in gasholder 18 promotes the piston stroking upward of single-rod piston cylinder 16, hydraulic oil in single-rod piston cylinder 16 rod chamber is through the second tee piece 10, swing arm promotes interstage valve 9, first tee piece 7 enters in hydraulic motor pump 6, first one way valve 8 is closed under the hydraulic oil entering the first tee piece 7 promotes, driven by engine hydraulic motor pump 6 pushes the second one way valve 14 to after hydraulic oil pressurization open through the second liquid mouth 15 of hydraulic distributing valve 3, enter promotion swing arm lifting hydraulic cylinder 2 through the 3rd threeway 13 and rise swing arm, thus reach the hydraulic pressure kinetic energy object of saving for rising swing arm and scraper bowl.

Claims (3)

1. a loading arm hydraulic system for lifting, comprises hydraulic oil container, swing arm lifting hydraulic cylinder, and the rod chamber of described swing arm lifting hydraulic cylinder is communicated with the first liquid mouth of hydraulic distributing valve, and the inlet of described hydraulic distributing valve is communicated with hydraulic motor pump liquid outlet; It is characterized in that: described hydraulic motor pump inlet is communicated with a mouth of pipe of the first tee piece, another two mouths of pipe of described first tee piece promote interstage valve liquid outlet with the first one way valve liquid outlet, swing arm respectively and are communicated with, and described first one way valve inlet is communicated with described hydraulic oil container; Described swing arm promotes interstage valve inlet and is communicated with a mouth of pipe of the second tee piece, and another two mouths of pipe of described second tee piece are communicated with energy storage device, swing arm decline interstage valve liquid outlet respectively; Described swing arm decline interstage valve inlet is communicated with a mouth of pipe of the 3rd tee piece, and another two mouths of pipe of described 3rd tee piece are communicated with the rodless cavity of the second one way valve liquid outlet, swing arm lifting hydraulic cylinder respectively; Described second one way valve inlet is communicated with the second liquid mouth of hydraulic distributing valve.
2. loading arm hydraulic system for lifting according to claim 1, it is characterized in that: described energy storage device is made up of with the gasholder be communicated with the rodless cavity of described single-rod piston cylinder by pipeline single-rod piston cylinder, the rod chamber of described single-rod piston cylinder is communicated with by the mouth of pipe that pipeline is corresponding with described second tee piece.
3. loading arm hydraulic system for lifting according to claim 1 and 2, is characterized in that: described swing arm decline interstage valve liquid outlet is communicated with a mouth of pipe of described second tee piece by the tube side of radiator.
CN201420470729.0U 2014-08-20 2014-08-20 Loading arm hydraulic system for lifting Expired - Fee Related CN204023644U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420470729.0U CN204023644U (en) 2014-08-20 2014-08-20 Loading arm hydraulic system for lifting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420470729.0U CN204023644U (en) 2014-08-20 2014-08-20 Loading arm hydraulic system for lifting

Publications (1)

Publication Number Publication Date
CN204023644U true CN204023644U (en) 2014-12-17

Family

ID=52063531

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420470729.0U Expired - Fee Related CN204023644U (en) 2014-08-20 2014-08-20 Loading arm hydraulic system for lifting

Country Status (1)

Country Link
CN (1) CN204023644U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108448214A (en) * 2018-03-30 2018-08-24 苏州爱华光电科技有限公司 Cavity body filter with frequency adjustment mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108448214A (en) * 2018-03-30 2018-08-24 苏州爱华光电科技有限公司 Cavity body filter with frequency adjustment mechanism

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141217

Termination date: 20190820