Design of Cross Slide Safety Devices in Engine Lathe

2012 ◽  
Vol 503-504 ◽  
pp. 776-779
Author(s):  
Yue Zeng Xu ◽  
Qun Ying He ◽  
Wei Xin Hu
Keyword(s):  
Power Supply ◽  
Protection Device ◽  
Safety Devices ◽  
The Cross ◽  
Limit Position ◽  
Limit Switch

It presents the design of overtravel protection device for engine lathe C6140.When the cross slide runs to the limit position,the stop dog touches the contact blade of limit switch, which cuts off the power supply of machine and provides protection for lathe.The experiment proved that the device is reliable.

Researches on the Flood Protection and Anti-Seismic Self-Help Bed

2014 ◽  
Vol 945-949 ◽  
pp. 393-396
Author(s):  
Jia Bin Lu ◽  
Hong Sheng Zhao ◽  
Xin Lei Guo
Keyword(s):  
Power Supply ◽  
Flood Control ◽  
Flood Protection ◽  
Storage Battery ◽  
Protection Device ◽  
Personal Safety ◽  
Circular Arch ◽  
Self Help ◽  
External Power ◽  
And Storage

In recent years, floods and earthquakes occur frequently and cause great threats and harm to personal safety. On the basis of my patent named anti-seismic bed, which patent id is 200920287683.8, the flood control and anti-seismic bed is proposed. The anti-seismic bed doesn’t need external power supply and storage battery. When an earthquake occurs, the protection device starts and then an circular arch are formed by rotating protection boards. people are protected in bed body in 0.765s. When floods occur, flood protection airbag is filled with gas and launched by the Atmel89C52 microprocessor and YDE-WDT-P sensors. Bed body can float in the flood. Its functions are similar to the rescue boat and can protect human life’s safety.

Design of Power Supply for Mining Belt Conveyor Integrated Protection Device KHP178k-z Based on Topswitch-JX

2014 ◽  
Vol 614 ◽  
pp. 241-244
Author(s):  
Hai Zhu Yang ◽  
Zeng Liang Zhang
Keyword(s):  
Power Supply ◽  
Protection Device ◽  
Belt Conveyor ◽  
Reliable Operation ◽  
Output Waveform ◽  
Output Quality ◽  
Belt Conveyors

Mining belt conveyor integrated protection device KHP178k-z is an important device for the supervision and protection of the belt conveyors. A new power supply based on TOPSwitch-JX is designed in this paper to ensure the reliable operation of the device. Applying TOPSwitch-JX, the circuit of the power supply is simplified and the output quality is improved. Experiments show that the output waveform is stable and the ripple is small. The power supply designed is effective to meet the requirements of mining belt conveyor integrated protection device KHP178k-z.

scholarly journals Improvement of algorithms for voltage circuits fault detection in relay protection terminal of 6-35 kV electrical networks

2019 ◽  
Vol 139 ◽  
pp. 01061
Author(s):  
Vladimir Vukolov ◽  
Mikhail Obalin ◽  
Anton Petrov
Keyword(s):  
Fault Detection ◽  
Power Supply ◽  
Relay Protection ◽  
Protection Device ◽  
Electrical Networks ◽  
Network Element ◽  
Voltage Transformer ◽  
Supply Reliability

Issues of increase of consumer power supply reliability by prevention of protection device false operation and unreasonable tripping of the protected network element at malfunction of measuring voltage transformer secondary circuits are considered. Options for implementation in relay protection microprocessor terminals of advanced blocking algorithms in case of voltage circuits fault are proposed.

scholarly journals MOSFET overcurrent protection device in 500 ~ 1000V power supply

2021 ◽  
Author(s):  
Shunzou Ohshima
Keyword(s):  
Power Supply ◽  
Protection Device ◽  
Overcurrent Protection

<p>・Table 1 shows the evaluation results of four types (05-</p><p>T125, (05-T-40), (05-L125A), (05-L-40A)) in a 500V power supply. Table 2 shows the evaluation results of four types (10-T125, (10-T-40), (10-L125A), (10-L-40A)) in a 1000V power supply.<br></p><p>・Figure 5 and Table 3 show the waveform and data of 05-T125. Fig. 6 and Table 4 show the waveform and data of 10-L-40A.</p><p>・ All eight types of waveforms, including those with (), are attached together in a separate document.</p><p><br></p>

scholarly journals MOSFET overcurrent protection device in 500 ~ 1000V power supply

2021 ◽  
Author(s):  
Shunzou Ohshima
Keyword(s):  
Power Supply ◽  
Protection Device ◽  
Overcurrent Protection

<p>・Table 1 shows the evaluation results of four types (05-</p><p>T125, (05-T-40), (05-L125A), (05-L-40A)) in a 500V power supply. Table 2 shows the evaluation results of four types (10-T125, (10-T-40), (10-L125A), (10-L-40A)) in a 1000V power supply.<br></p><p>・Figure 5 and Table 3 show the waveform and data of 05-T125. Fig. 6 and Table 4 show the waveform and data of 10-L-40A.</p><p>・ All eight types of waveforms, including those with (), are attached together in a separate document.</p><p><br></p>

RECALCULATION OF THE LOADS CURRENT OF ACTIVE MULTI-PORT NETWORKS ON THE BASIS OF PROJECTIVE GEOMETRY

2013 ◽  
Vol 22 (05) ◽  
pp. 1350031 ◽  
Author(s):  
A. A. PENIN
Keyword(s):  
Projective Geometry ◽  
Direct Current ◽  
Power Supply ◽  
Power Supply System ◽  
Traditional Approach ◽  
Cross Ratio ◽  
Supply System ◽  
The Cross ◽  
The Given

For an active multi-port network of a direct current, as a model of a power supply system, the problem of recalculation of the changeable loads currents is considered. The approach on the basis of projective geometry is used for interpretation of changes or "kinematics" of regime parameters of a circuit. The changes of the regime parameters are introduced otherwise, through the cross ratio of four points with use of projective coordinates. Easy-to-use formulas of the recalculation of the currents, which possess the group properties at change of conductivity of the loads, are obtained. It allows expressing the final values of the currents through the intermediate changes of the currents and conductivities. Disadvantages of the traditional approach, which uses the changes of resistance in the form of increments, are shown. The given approach is applicable to the analysis of "flowed" form processes of the various physical natures.

scholarly journals Perancangan Dan Pembuatan Mesin 3D Printer Tipe Cantilever

Abdi Masya ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 108-114
Author(s):  
Deni Andriyansyah ◽  
Sriyanto ◽  
Agus Jamaldi
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Power Supply ◽  
3D Printer ◽  
Linear Guide ◽  
Timing Belt ◽  
Limit Switch

Teknologi 3D printing termasuk dalam metode manufaktu rbaru yang disebut dengan metode additive manufacturing. Metode ini mempunyai cara kerja menumpuk material untuk membuat sebuah objek 3 dimensi. Penelitian dalam bidang desain dan assembly mesin 3D printer masih belum banya kdilakukan. Pada umumnya, mesin-mesin 3D printer yang digunakan memiliki paling tidak 5 motor stepper, yaitu sumbu X 1 buah, sumbu Y 1 buah, sumbu Z 2 buah serta motor ekstruder 1 buah. Paper ini akan membahas mengenai alternative desain mesin 3D printer FFF dengan model cantilever yang menggunakan 4 motor stepper sehingga lebih hemat komponen. Proses desain dan assembly 3D printer tipe cantilever menghasilkan mesin dengan area kerja 200 x 200 x 200 mm dan ketelitian 0,1 mm. Mesin 3D printer yang didesain memiliki komponen utama berupa komponen mekanik dan elektrik. Komponen mekanik terdiri dari frame, linear guide, bracket, leadscrew, pulley dan timing belt. Komponen elektrik terdiri dari controller, lcd, motor stepper, limit switch, soket serta power supply. Dengan meminimalisir jumlah motor stepper yang digunakan, maka desain 3D printer tipe cantilever dinilai lebih ekonomis dengan desain yang minimalis. Mesin seperti ini cocok digunakan untuk kegiatan-kegiatan yang bersifat mobile. 3D printer ini kedepan akan dimanfaatkan untuk melakukan pelatihan kepada masyarakat untuk memperkenalkan teknologi manufaktur baru, yaitu proses cetak 3 dimensi.

scholarly journals Otomasi Pendorong Singkong pada Mesin Pemotong dalam Pembuatan Keripik Singkong

2018 ◽  
Vol 2 (1) ◽  
pp. 18-21
Author(s):  
Reinol Silitonga
Keyword(s):  
Power Supply ◽  
Motor Power ◽  
Push Button ◽  
Limit Switch

Mesin pemotong singkong otomatis merupakan suatu mesin yang dirancang untuk memotong singkong secara otomatis dengan memanfaatkan komponen elektronika. Hasil potongan singkong dapat dimanfaatkan sebagai makanan ringan salah satunya adalah kripik singkong. Dalam perancangan alat pemotong singkong ini dibutuhkan power supply 12 VDC sebagai penyuplai tegangan,  motor power window sebagai pendorong singkong, motor kapasitor sebagai penggerak mata pisau, push button dan limit switch sebagai saklar pengaktifan komponen. Mesin ini dikontrol dengan meggunakan relay, sedangkan potensiometer digunakan dalam menentukan kelajuan pendorong singkong. Pengukuran tebal atau tipisnya hasil pemotongan diukur menggunakan jangka sorong. Hasil pemotongan singkong optimal didapat pada hambatan potensiometer 1000 kΩ dan durasi waktu 12 menit untuk 3 kg singkong dengan ketebalan pemotongan 4 mm.

scholarly journals ANALISIS DAN PERANCANGAN SMART DUMP AUTOMATIC MENGGUNAKAN ARDUINO MEGA 2560 Rev3 DAN GSM SIM900

2018 ◽  
Vol 4 (1) ◽  
pp. 32
Author(s):  
John Ohoiwutun
Keyword(s):  
Power Supply ◽  
Limit Switch

Perkembangan ilmu pengetahuan dan teknologi (IPTEK) dewasa ini sangat pesat dan mempengaruhi kehidupan masyarakat untuk melangkah lebih maju (moderenisasi), berpikiran praktis dan sederhana. Untuk  mewujudkan ide ini ada beberapa hal yang harus dikerjakan terlebih dahulu antara lain, studi literatur, setelah itu dapat memulai dengan perancangan model alat, agar kita dapat tahu dimana letak setiap komponen atau sensor di letakkan. Setelah itu kita dapat menyiapkan alat dan bahan yang akan digunakan “Tempat Sampah Otomatis” ini menggunakan Arduino mega 2560 Rev3 sebagai pengontrol, Sensor PING HC-SR04 sebagai pendeteksi kedatangan objek dan juga pendeteksi kapasitas tempat sampah, LCD sebagai alat untuk menampilkan kapasitas tempat sampah dan ucapan terima kasih, Module ISD 1820 akan menyampaikan kapasitas tempat sampah apabila telah penuh, Motor DC sebagai alat penggerak untuk membuka dan menutup tutup tempat sampah, Limit Switch sepagai pemutus dan penyambung siknyal saat tutup tempat sampah akan membuka ataupun akan menutup, Module GSM SIM900 sebagai pengirim pesan singkat apabila tempat sampah telah penuh, Power Supply sebagai pemberi daya.

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