CN102768112A - Hydraulic loading test table with power recovery function for land scraper rear axle - Google Patents
Hydraulic loading test table with power recovery function for land scraper rear axle Download PDFInfo
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- CN102768112A CN102768112A CN2012102296171A CN201210229617A CN102768112A CN 102768112 A CN102768112 A CN 102768112A CN 2012102296171 A CN2012102296171 A CN 2012102296171A CN 201210229617 A CN201210229617 A CN 201210229617A CN 102768112 A CN102768112 A CN 102768112A
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- hydraulic
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- oil motor
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Abstract
The invention relates to a hydraulic loading test table with a power recovery function for a land scraper rear axle and belongs to the technical field of a loading test table. The hydraulic loading test table with the power recovery function for the land scraper rear axle is characterized by comprising a load hydraulic motor, a speed increaser, a power recovery hydraulic motor, a power loading pump, a hydraulic control valve, a main driving motor and a transfer case, wherein the main driving motor is connected with the land scraper rear axle through the transfer case, the power recovery hydraulic motor is connected with a transmission shaft through the transfer case, the load hydraulic motor is a loading element and is connected with an equilibrium box of the land scraper rear axle through the speed increaser, the power loading pump is communicated with the load hydraulic motor and the power recovery hydraulic motor through the hydraulic control valve, and the load hydraulic motor and the power recovery hydraulic motor are sealed hydraulic loops. The hydraulic loading test table has the advantages that the hydraulic power recovery and the load power stepless regulation are realized, the conception is novel, the manufacture cost is low, the system maintenance is convenient, the size is small, the performance is reliable, safety and stability are realized, and the like.
Description
Technical field
The invention belongs to the bracket loading test platform technical field, particularly relate to a kind of band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle.
Background technology
At present, engineering machinery drive axle experiment table generally also has value-added tax function except that the dry run function.The loading of bench test appropriateness can reduce drive axle and complete machine is installed or dispatched from the factory back initial stage appearance drum barrier.At present, domestic engineering machinery drive axle experiment table load mode mainly adopts electric eddy current dynamometer to load and electric dynamometer loading dual mode.
The electric eddy current dynamometer bracket loading test platform is mainly by the drive motor drives Workpiece Rotating, and the workpiece output connects electric eddy current dynamometer to be given by the reverse braking moment of test-run a machine spare, realizes loading.The a large amount of electric energy of this load mode converts heat energy at last to, and load mode needs heat radiation, and this realizes with regard to needing water tower and the complicated water cooling system of a cover.
The electric dynamometer bracket loading test platform adopts electricity sealing load mode, three cover ac control systems; One cover drive system; Move with the motor mode, two cover loading systems are moved with the generator mode; Adopt the moving frequency converter common dc bus of patrilineal line of descent with only one son in each generation; The electric energy that loading motor is produced can turn back to kinematic train and directly absorbed by drive motor fully, thereby guarantees that enough loading moments are arranged, simultaneously saves energy.There is the bracket loading test platform expensive price in this load mode, initial stage problem such as have high input.
Summary of the invention
The present invention provides a kind of band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle for solving the problem that prior art exists.
The object of the invention provides a kind of hydraulic power recovery that has, and loads power stepless and regulates, and is novel, low cost of manufacture, system maintenance easy maintenance, dependable performance, the band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of characteristics such as safety and stability; Thereby realize that the motorized grader back axle loads energy-conservation, the reduction use cost of running-in test.
Hydraulic loading test platform of the present invention, be a kind of with oil motor as loading element, through cover hydraulic system regenerative power to a drive end motor auxiliary drive motor back axle is driven simultaneously.This hydraulic pressure running-in experimental bench system has hydraulic power and reclaims, and loads power stepless and regulates.Because hydraulic power reclaims, and greatly reduces use cost.
The present invention utilize 4 can positive and negative rotation fixed displacement motor and pressure regulation hydraulic circuit realize loading to back axle rotating output, utilize the adjusting of system pressure to realize adjusting to the loading of system.The loading end that the power of loading hydraulic system can be used for driving 2 motors and recycles testing table, stand-by motor drives, and the output power that reduces drive motor realizes the purpose of economize on electricity.Utilize the power cycle principle to load running-in, can realize that regenerative power is more than 30%.
The band Power Recovery hydraulic loading test platform that the present invention is used for the motorized grader back axle adopts following technical scheme:
A kind of band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; Be characterized in: testing table comprises load oil motor, booster engine, Power Recovery oil motor, power load pump, hydraulic control valve, main drive motor and transfer case; Main drive motor connects the motorized grader back axle through transfer case; The Power Recovery oil motor links to each other with transmission shaft through transfer case, and the load oil motor is a loading element, is connected in motorized grader back axle tandem-driving bogie through booster engine; The power load pump is communicated with load oil motor and Power Recovery oil motor through hydraulic control valve, and load oil motor and Power Recovery oil motor are the closed hydraulic pressure loop.
The band Power Recovery hydraulic loading test platform that the present invention is used for the motorized grader back axle can also adopt following technical measures:
The described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; Be characterized in: the power load pump is driven by the power loading motor; For the hydraulic system high-pressure side pressure compensation is provided through solenoid directional control valve and electric proportional pressure control valve, increases the output power of load oil motor.
The described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle is characterized in: driving load oil motor and booster engine has 4 groups, drives the load oil motor and is connected in motorized grader back axle tandem-driving bogie through booster engine respectively.
The described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; Be characterized in: on load oil motor and the Power Recovery oil motor closed hydraulic pressure loop slippage pump is housed, slippage pump replenishes internal leakage and the interior flushing of hydraulic oil to remedy motor for the closed hydraulic pressure loop.
The described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle is characterized in: the sense of rotation of hydraulic control valve control load oil motor and Power Recovery oil motor, pressure and carry out overload protection.
The described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle, be characterized in: the housing oil return of load oil motor and Power Recovery oil motor is flowed back to hydraulic reservoir after cooling off through hydraulic oil cooler.
Advantage that the present invention has and good effect:
The band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; Owing to adopted brand-new technology scheme of the present invention; Compared with prior art, the present invention is load mode and the motorized grader back axle running-in testing table of realizing Power Recovery through hydraulic system with Hydraulic Elements to realize that the motorized grader back axle loads energy-conservation, the purpose that reduces use cost of running-in test.The present invention has following obvious advantage:
1. manufacturing cost and use cost is lower, with the electric power bracket loading test platform with performance, practices thrift manufacturing cost 120%.
2. closed hydraulic loop, thermal value is little, the system maintenance easy maintenance.
3. can realize about 30% energy recovery.
4. can realize the load torque step-less adjustment.
Description of drawings
Fig. 1 is the band Power Recovery hydraulic loading test platform principle of work synoptic diagram that the present invention is used for the motorized grader back axle;
Fig. 2 is the band Power Recovery hydraulic loading test platform hydraulic principle synoptic diagram that the present invention is used for the motorized grader back axle.
Among the figure, 1-load oil motor, 2-Power Recovery oil motor, 3-power load pump motor, 4-power load pump, 5-system slippage pump motor; 6-system slippage pump, 7-hydraulic control valve, 7.1-solenoid directional control valve, 7.2-retaining valve, 7.3-solenoid directional control valve; 7.4-shuttle valve, 7.5-logical valve, 7.6-surplus valve, 7.7-retaining valve, 7.8-surplus valve; 7.9-ball valve, 7.10-proportional pressure control valve, 7.11-damper, 8. booster engine, 9. main drive motor; 10. transfer case, 11. motorized grader back axle tandem-driving bogies, 12. hydraulic reservoirs, 13. hydraulic oil coolers, 14. transmission shafts.
Embodiment
For further understanding technology contents of the present invention, characteristics and effect, enumerate following instance now, and conjunction with figs. specifies as follows:
With reference to accompanying drawing 1 and Fig. 2.
Embodiment 1
A kind of band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; Comprise load oil motor, booster engine, Power Recovery oil motor, power load pump, hydraulic control valve, main drive motor and transfer case; Main drive motor connects the motorized grader back axle through transfer case; The Power Recovery oil motor links to each other with transmission shaft through transfer case, and the load oil motor is a loading element, is connected in motorized grader back axle tandem-driving bogie through booster engine; The power load pump is communicated with load oil motor and Power Recovery oil motor through hydraulic control valve, and load oil motor and Power Recovery oil motor are the closed hydraulic pressure loop.
The power load pump is driven by the power loading motor, for the hydraulic system high-pressure side pressure compensation is provided through solenoid directional control valve and electric proportional pressure control valve, increases the output power of load oil motor.Driving load oil motor and booster engine has 4 groups, drives the load oil motor and is connected in motorized grader back axle tandem-driving bogie through booster engine respectively.On load oil motor and the Power Recovery oil motor closed hydraulic pressure loop slippage pump is housed, slippage pump replenishes internal leakage and the interior flushing of hydraulic oil to remedy motor for the closed hydraulic pressure loop.
The sense of rotation of hydraulic control valve control load oil motor and Power Recovery oil motor, pressure and carry out overload protection.The housing oil return of load oil motor and Power Recovery oil motor is flowed back to hydraulic reservoir after cooling off through hydraulic oil cooler.
The concrete structure of the present invention and the course of work are described with reference to the accompanying drawings as follows:
Shown in Figure 1 like principle of the present invention, four load oil motors 1 (pump) are connected with four wheel limits of motorized grader back axle tandem-driving bogie 11 respectively through booster engine 8.Main drive motor 9 is connected with the motorized grader back axle through transfer case 10, and Power Recovery oil motor 2 links to each other with the main transmission shaft 14 that drives through transfer case 10 simultaneously.When the whole loading testing table was worked, main drive motor 9 drove 11 runnings of motorized grader back axle tandem-driving bogie through transfer case 10 transmission shafts 14.Four wheel limits of motorized grader back axle tandem-driving bogie are respectively through four booster engine 1 drive load oil motor 1 (pump) runnings.And balance case through booster engine 8 and reclaim oil motor 2 as hydraulic pump through the fluid pressure line driving power when load resistance is provided.2 of Power Recovery oil motors can pass back to the power that reclaims on the final drive shaft through transfer case, and auxiliary main drive motor 9 drives the purpose that motorized grader back axle tandem-driving bogie 11 reaches Power Recovery, energy savings.
In this table apparatus, load oil motor 1 (pump), Power Recovery oil motor 2, system's slippage pump 6, HYDRAULIC CONTROL SYSTEM valve form the hydraulic system of a closed loop.Wherein load oil motor 1 forms a basic closed hydraulic loop with Power Recovery oil motor 2.Slippage pump 6 replenishes hydraulic oil for this closed hydraulic loop and leaks and interior flushing with the inside that remedies motor.Hydraulic control valve 7 has been controlled sense of rotation, pressure and the overload protection of load oil motor and Power Recovery oil motor.The housing oil return of load oil motor 1 (pump) and Power Recovery oil motor 2 is flowed back to hydraulic reservoir 12 after cooling off through hydraulic oil cooler 13.
Shown in hydraulic principle Fig. 2, load oil motor 1 links to each other through oil pipe with Power Recovery oil motor 2 and forms a closed type hydraulic system.System's slippage pump 6 is whole hydraulic system repairing from hydraulic reservoir 12 oil suctions through hydraulic control valve 7, and unnecessary hydraulic oil flows back to hydraulic reservoir 12 through surplus valve 7.1.Power load pump 4, increases the output power of load oil motor 1 (pump), thereby reaches the effect of power loading for the high-pressure side of total system provides pressure compensation through solenoid directional control valve 7.1 and electric proportional pressure control valve 7.10.Power Loading Control when this wherein electric proportional pressure control valve can be realized race of motorized grader back axle and test through the hydraulic pressure of electrodeless this loading system of adjusting of electric scaling signal.
Present embodiment has described hydraulic power and reclaims, and loads power stepless and regulates, and is novel, low cost of manufacture, and the system maintenance easy maintenance, volume is little, dependable performance, advantages such as safety and stability.
Claims (6)
1. band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle; It is characterized in that: testing table comprises load oil motor, booster engine, Power Recovery oil motor, power load pump, hydraulic control valve, main drive motor and transfer case; Main drive motor connects the motorized grader back axle through transfer case; The Power Recovery oil motor links to each other with transmission shaft through transfer case, and the load oil motor is a loading element, is connected in motorized grader back axle tandem-driving bogie through booster engine; The power load pump is communicated with load oil motor and Power Recovery oil motor through hydraulic control valve, and load oil motor and Power Recovery oil motor are the closed hydraulic pressure loop.
2. according to the described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of claim 1; It is characterized in that: the power load pump is driven by the power loading motor; For the hydraulic system high-pressure side pressure compensation is provided through solenoid directional control valve and electric proportional pressure control valve, increases the output power of load oil motor.
3. according to the described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of claim 1, it is characterized in that: driving load oil motor and booster engine has 4 groups, drives the load oil motor and is connected in motorized grader back axle tandem-driving bogie through booster engine respectively.
4. according to the described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of claim 1; It is characterized in that: on load oil motor and the Power Recovery oil motor closed hydraulic pressure loop slippage pump is housed, slippage pump replenishes internal leakage and the interior flushing of hydraulic oil to remedy motor for the closed hydraulic pressure loop.
5. according to the described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of claim 1, it is characterized in that: the sense of rotation of hydraulic control valve control load oil motor and Power Recovery oil motor, pressure and carry out overload protection.
6. according to the described band Power Recovery hydraulic loading test platform that is used for the motorized grader back axle of claim 1, it is characterized in that: the housing oil return of load oil motor and Power Recovery oil motor is flowed back to hydraulic reservoir after cooling off through hydraulic oil cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229617.1A CN102768112B (en) | 2012-07-04 | 2012-07-04 | Hydraulic loading test table with power recovery function for land scraper rear axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210229617.1A CN102768112B (en) | 2012-07-04 | 2012-07-04 | Hydraulic loading test table with power recovery function for land scraper rear axle |
Publications (2)
| Publication Number | Publication Date |
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| CN102768112A true CN102768112A (en) | 2012-11-07 |
| CN102768112B CN102768112B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210229617.1A Expired - Fee Related CN102768112B (en) | 2012-07-04 | 2012-07-04 | Hydraulic loading test table with power recovery function for land scraper rear axle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865083A (en) * | 2015-04-20 | 2015-08-26 | 中国矿业大学 | Multi-rope friction hoist load simulation hydraulic loading device |
| CN111322289A (en) * | 2020-03-03 | 2020-06-23 | 江苏师范大学 | Hydraulic system overflow energy recycling device |
| CN114508514A (en) * | 2022-01-29 | 2022-05-17 | 徐州徐工筑路机械有限公司 | Land leveler multi-rotary-motor control hydraulic system and control method thereof |
| CN116146705A (en) * | 2022-12-28 | 2023-05-23 | 山东临工工程机械有限公司 | Hydraulic system with heat dissipation function and engineering machinery vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844876A (en) * | 2006-03-24 | 2006-10-11 | 哈尔滨工业大学 | Hydraulic enclosed loading test bench for wheel and axle |
| CN201747703U (en) * | 2010-05-25 | 2011-02-16 | 长沙中联重工科技发展股份有限公司 | Sealed hydraulic system |
| JP2011214458A (en) * | 2010-03-31 | 2011-10-27 | Mitsui Eng & Shipbuild Co Ltd | Supercharger surplus power recovery device of internal combustion engine |
-
2012
- 2012-07-04 CN CN201210229617.1A patent/CN102768112B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1844876A (en) * | 2006-03-24 | 2006-10-11 | 哈尔滨工业大学 | Hydraulic enclosed loading test bench for wheel and axle |
| JP2011214458A (en) * | 2010-03-31 | 2011-10-27 | Mitsui Eng & Shipbuild Co Ltd | Supercharger surplus power recovery device of internal combustion engine |
| CN201747703U (en) * | 2010-05-25 | 2011-02-16 | 长沙中联重工科技发展股份有限公司 | Sealed hydraulic system |
Non-Patent Citations (2)
| Title |
|---|
| 刘斌等: "双向变量液压泵试验台功率回收系统分析", 《机床与液压》 * |
| 孟庆华: "基于功率回收的新型液压封闭式汽车车桥疲劳试验台的研究", 《机床与液压》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865083A (en) * | 2015-04-20 | 2015-08-26 | 中国矿业大学 | Multi-rope friction hoist load simulation hydraulic loading device |
| CN111322289A (en) * | 2020-03-03 | 2020-06-23 | 江苏师范大学 | Hydraulic system overflow energy recycling device |
| CN114508514A (en) * | 2022-01-29 | 2022-05-17 | 徐州徐工筑路机械有限公司 | Land leveler multi-rotary-motor control hydraulic system and control method thereof |
| CN116146705A (en) * | 2022-12-28 | 2023-05-23 | 山东临工工程机械有限公司 | Hydraulic system with heat dissipation function and engineering machinery vehicle |
| CN116146705B (en) * | 2022-12-28 | 2023-10-27 | 山东临工工程机械有限公司 | Hydraulic system with heat dissipation function and engineering machinery vehicle |
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| Publication number | Publication date |
|---|---|
| CN102768112B (en) | 2015-04-22 |
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Granted publication date: 20150422 Termination date: 20160704 |