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Date Submitted Thu. Nov. 14th, 2013 2:16 AM
Revision 1
Syntax Master jjanedan
Tags Assembly | bor | Connector | ring | slip | through
Comments 0 comments
China 's construction machinery industry since April 2011 sales growth inflection point , it has been nearly three months of continuous decline .

August 2013 excavator industry sales 6,317 units, up 10.1% MoM in July fell 1.9%. August China's construction machinery market index has rebounded slightly.

September , construction machinery industry total product sales grew 11.16% , sales of construction machinery products has shown a steady upward trend.

October excavator industry sales 7,537 units, an increase of 23.7 percent, an increase of 8.9% over September .

Construction machinery sales seem to be getting better , the industry is no longer a luxury to pick up in 2013 in the second half of 2014, sales development will bring optimism to the market.

Machinery industry in 2013 , three quarterly : overall performance in the doldrums

Performance of listed companies in the machinery industry downturn . Three quarters of 2013 , listed companies in the machinery industry achieved a total revenue 632.464 billion yuan , down 5.85% ; realized 31.757 billion yuan net profit attributable to parent company , down 26.26% ; industry listed company's overall gross profit margin was 19.36% , down 0.68 percentage points ; margin was 5.02%, ROE of 4.76% .

2013 , China's economy to achieve a slow recovery , slow recovery in manufacturing-related fields , we believe that the strong cyclical machinery industry sub-sector opportunities is not strong , the proposed focus less affected by economic cycles of the plate as well as individual stocks with growth potential .

Plate : Focus benefit from upstream exploration capital spending continues to grow, demand is relatively stable , and benefit from the development of unconventional oil and gas drilling mechanical energy sector ; clear benefit of railway investment , institutional reform trucks, etc. Bidding EMU started with trading opportunities for railway equipment sector ; military spending and stable , by the uncertainty surrounding the impact of the situation in the aerospace industry sector benefited . From the perspective of risk-averse , avoiding large affected by economic cycles , performance continued to decline in construction machinery , marine vessels , mining machinery, energy, chemical, common base plate gives the machine .
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slip ring assembly slip ring connector Through bore Slip Rings Pan Cake Slip Rings
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Date Submitted Fri. Sep. 27th, 2013 6:34 AM
Revision 1
Syntax Master jjanedan
Tags Assembly | joint | joints | ring | rotary | slip | swivel
Comments 0 comments
Early industrial robots is through the " Teach reproduction " way to perform simple repetitive tasks that entered by the operator or the remote control of industrial robotic arm to reach a series of spatial location point , the point where the robot records and operations in sequence repeats. This approach applies not only to batch -oriented , fixed simple handling, assembly operations, for the achievement of certain complex operations are also effective , therefore , in the " teaching and playback " mode for ease of use , security, still there are a lot of research to be done in order to adapt to the complex operations, reducing system debug time , improve work efficiency.

With the expansion of the manufacturing sector to robotics applications , industrial robots to meet the urgent need for high-speed, heavy load, intelligent, multi-machine coordination requirements in order to adapt to a more complex and sophisticated, reliable, and fast-paced job . Industrial robots and manufacturing process , the manufacturing process of integration with the auxiliary systems , but also greatly affect the overall performance of the manufacturing system . Meanwhile, the industrial robot production line closed from large workstations close collaboration extends to the common people and the robot work space when open , human collaboration and security issues in recent years become the new hot spot.

The past 20 years , the rapid development of robotics related technologies , robots are not only widely used in the manufacturing sector , but also in health care , education, entertainment , family services , emergency rescue , field investigations , resource development , military equipment and other fields also play an important role. In the doctor's operation, the surgical robot has to be completed neurosurgery, cardiovascular intervention , orthopedic and other minimally invasive surgery, robotic capsules into the digestive tract to complete testing, rehabilitation robot can assist stroke , paralysis of motor function in patients with rehabilitation training . Walkers help robots, intelligent prosthetics is convenient for the elderly, people with disabilities work and life . Soccer, ROBOFISH , humanoid robots such as science education , attracting attention to the young people in science and technology to promote the dissemination of knowledge . Partner Robot , imitation animal robot , guided robots have entered the personal entertainment and public service areas. Cleaning robots , cooking robots have been gradually practical and into the home . EOD robot , rotor helicopter , line inspection robot in various emergency operations have also been applied . Deep-sea fishing robotic Mars exploration robots, but also in resource exploration, development, extraterrestrial exploration plays an important role. The intelligent unmanned vehicles, unmanned aerial vehicles, unmanned ships, unmanned submersible , etc., have become an important future direction of development of military equipment .

Robotics and systems research and development by governments , research institutions and enterprises attach great importance

China in the 863 , Natural Science Foundation , and other major science and technology planning for industrial robots, service robots related research and development were the focus of deployment. High cost of industrial robots and its production process, combined with the depth of flow manufacturing systems, will promote China's industrial upgrading, and to ease labor shortages and other factors restraining the development of the industry . Different forms of service robots will solve social problems such as aging , promote social development , cultivate new industries play an important role .

U.S. , EU, Japan , Korea and other countries in the field of robotics have carried out extensive research , but the areas of concern and strengths vary. U.S. military in the defense , aerospace , biotechnology , medical services and other areas , the EU industrial robots, biological , medical , services, and other fields, the Japanese industrial robot , humanoid robot , personal / household , services, etc., all have their own technical advantage.

U.S. Department of Defense , NASA , the National Institutes of Health and other departments to support the implementation of a number of robot-related research work. Global Hawk , Predator , Scan Eagle and a series of fixed-wing UAV has been used for remote reconnaissance and attack. Meanwhile, the high-altitude unmanned hypersonic flight systems and other new UAV is also in development . Nereus AUV can dive 10,902 meters completed probe . Based on advance imitation fish , underwater gliding underwater robot mechanism is also in development . In order to meet the complex mountain road environment and the development of hydraulically driven quadruped robot BigDog, AlphaDog in the grass , snow , slopes, gravel and other different floor load 150 kg , walking 20 km or more . Exercise capacity with high speed quadruped robot cheetah , wild six unmanned combat vehicles is also being developed . Hydraulic drive biped walking robot Petman, Atlas shows not only good flexibility and responsiveness, and has a faster walking speed . Small reconnaissance robots, EOD robots and other types of terrestrial mobile robots have also been applied in actual combat . Wearable device BLEEX lower limb bones load weight 70 kg allows the user to walk normally . Mars exploration robot " Pathfinder ," " Spirit ," " Opportunity " and " Curiosity " etc. and carry out scientific exploration successful landing , where " Curiosity " robot uses a nuclear battery powered and equipped with operating arm and multiple cameras observing instruments . Humanoid robot arm astronaut Robonaut2 cabin has been sent to the International Space Station for service testing .

rotary joint swivel joints slip ring assembly
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Date Submitted Tue. Sep. 10th, 2013 4:01 AM
Revision 1
Syntax Master jjanedan
Tags Assembly | collector | ri | ring | rings | slip
Comments 0 comments
Said the following about the selection of brushes :
1, from the visual point of view, the brushes should be chamfered decent, appropriate specifications , structure, norms, conductor cross-section and length to meet the requirements , not loose , loss, damage, off side , off angle , clamp and so on.
2 , from the use of point of view, the good performance of the brush marks using mainly the following situation
( 1 ) long life and do not wear commutator or slip ring assembly , slip rings, collector slip ring, commutator appears not to scratch , uneven , ablation , drawing and so on.
With good flow properties and collector commutation , the spark suppression within the allowable range , and the energy loss is small.
( 3 ) brush runs, but heat, noise, not damaged , brush braid no color, no ablation .
( 4 ) during operation , to the commutator or collector ring to form a uniform surface faster , moderate and stable oxide film .
3 , the brush through the instrument for testing. From a technical perspective , the slip ring assembly should be in line with national ministerial standards . Through the instrument can brush accordance with the " brush technical performance table " performance testing as required . If the brush resistivity, Rockwell hardness , bulk density, current density , the contact voltage drop , friction coefficient, wear 50 hours , allowing the peripheral speed of the pressure, and even so the size of the metal content . Now the only thing I figure out is here . I do not know how these parameters are measured . There will be an expert to give pointers . And these parameters are measured data for the general motors , and motor brushes for power tools , it is how it measured ?
4, in the same motor , you should choose to use the same model , same manufacturer brushes . Because different brush factory production performance varies widely , even in the same factory produced at different times of the brush properties are also different . Thus, for the same motor, the same model should be chosen the same manufacturer , preferably at the same time the production of brushes in order to prevent the brush caused by the difference in performance parallel brush current uneven distribution , affecting the normal motor operation.
5, for individual commutation particularly difficult and medium-sized motors, the option of using sub- braid brush . Purpose is to increase the short-circuit current within the brush approach to improving commutation performance. For unidirectional rotary motor commutation difficulties , the option of using a combination brush . Slide the side that choose to use lubricating properties, forming ability of the low resistance values ​​graphite-based electric graphite brushes , slip rings slide side to choose the good performance of high resistivity carbon -based electricity graphite brushes . This will not only easy to form an oxide film , but also on commutation performance play a significant improvement. In the slide edge carbon fiber composite brushes can also be used to highlight the use of its strong features interrupter , so that the motor running for best results.
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Date Submitted Tue. Sep. 1st, 2009 12:38 AM
Revision 1
Scripter Cloudgen
Tags Assembly | Megawin | MM36SB010 | RSE
Comments 0 comments
This assembly code is used to read EFlash main storage continuously, especially useful for dumping the whole memory of an EFlash. See source from "Programming 6502 assembly language"
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Date Submitted Tue. Sep. 1st, 2009 12:30 AM
Revision 1
Scripter Cloudgen
Tags 6502 | Assembly | EFlash | Megawin | MM36SB010 | RMB | SPI
Comments 0 comments
This assembly code is responsible for reading EFlash Main Storage to EFlash buffer, see source from Programming 6502 assembly language