Etu esi ahọrọ gearbox na moto PDF？
You need to calculate the strength of the reducer according to your speed, the torque required to start to run smoothly when the tank is fully loaded, and the use time required by the design. At the same time, you can calculate the rated power required by the motor. When selecting the motor, you need to pay attention to the rating. The two parameters of torque and rated power should be selected to be greater than the design value.
Matters needing attention when choosing industrial gearbox
1. H and B series industrial gearboxes adopt general design schemes, which can be transformed into industry-specific gearboxes according to customer needs
2. Realize parallel axis, right-angle axis, vertical and horizontal universal cabinets, reduce the types of parts and increase the specifications and models.
3. Adopting sound-absorbing speaker structure and larger box surface area. The spiral bevel gear adopts advanced gear grinding technology and large fan to make the whole machine temperature rise, noise reduction, operation reliability improved, and transmission power increased.
4. Input method: click on the connecting flange and shaft to input.
5. Output mode: solid shaft, hollow shaft with key, shrink disk.
6. Installation method: horizontal type, vertical type, swing base type, torsion arm type.
7. H, B series products have 1-22 specifications, the reduction transmission stages are 1-4, and the speed ratio is 1.25-450, and the combination of R and K series can get a larger speed ratio.
The choice of the type of three-phase asynchronous motor is based on AC or DC power supply, mechanical characteristics, speed regulation characteristics and starting performance, maintenance and price.
Generally, three-phase AC power supplies are used in production. If there is no special requirement, three-phase AC asynchronous motors should be used. Among AC motors, three-phase cage asynchronous main disadvantages are difficult speed regulation, low power factor, and poor starting performance. Therefore, the general production machinery with harder mechanical properties and no special speed regulation requirements should be driven by three-phase cage asynchronous motors as much as possible. On low-power water pumps, ventilators, conveyors, and conveyor belts, as well as the auxiliary movement of the machine tool (such as rapid movement of the tool post, beam lifting and clamping, etc.), almost all use single-phase cage asynchronous motors, and some small machine tools It is also used as a spindle motor. For production machinery that requires a large starting torque, such as air compressors, belt conveyors, etc., deep groove or double cage asynchronous motors can be considered.
Basic requirements for motor selection
1. The choice of motor type should be given priority to the motor with simple structure, reliable operation, low price and convenient maintenance. In these respects, AC motors are better than DC motors, AC asynchronous motors are better than AC synchronous motors, and cage asynchronous motors are better than winding. Rotor asynchronous motor. The first thing to consider when choosing a motor is that the mechanical characteristics of the motor should be adapted to the mechanical characteristics of the production machinery. Some production machinery that requires constant speed or improved power factor when the load changes, such as large and medium-sized air compressors, ball mills, etc., can choose synchronous motors: machinery that requires large starting torque and soft mechanical characteristics, such as trams and heavy cranes And so on, should choose series excitation or compound excitation DC motor. In addition, the speed regulation performance and starting performance of the motor should also meet the requirements of the production machinery.
2. Selection of motor type The main types of motor are open type, protective type, enclosed type and explosion-proof type. When the production environment is harsh, the enclosed type should be used; the explosion-proof type should be used for explosion-proof requirements. After selecting the type and type of the motor, it is important to select the capacity of the motor, that is, the rated power.
The principle of selecting a motor is that on the premise that the performance of the motor meets the requirements of the production machinery, the motor with simple structure, low price, reliable work and convenient maintenance is preferred. In this respect, AC motors are superior to DC motors, AC asynchronous motors are superior to AC synchronous motors, and squirrel cage asynchronous motors are superior to winding asynchronous motors.
For production machinery with stable load and no special requirements for starting and braking, ordinary squirrel-cage asynchronous motors should be preferred, which are widely used in machinery, water pumps, fans, etc.
Starting and braking are more frequent, and production machinery that requires larger starting and braking torques, such as bridge cranes, mine hoists, air compressors, and irreversible rolling mills, should use wound asynchronous motors.
Where there is no requirement for speed regulation, a constant speed or improved power factor is required, synchronous motors should be used, such as medium and large capacity water pumps, air compressors, hoists, mills, etc.
The speed regulation range is required to be above 1:3, and the production machinery that needs continuous, stable and smooth speed regulation should adopt a separately excited DC motor or a squirrel cage asynchronous motor or synchronous motor with frequency conversion speed regulation, such as large precision machine tools, planers, Rolling mills, hoists, etc.
The production machinery that requires large starting torque and soft mechanical characteristics uses series-excited or compound-excited DC motors, such as trams, electric locomotives, and heavy-duty cranes.
1. Kewara dị ka ụdị nke ike ọkọnọ: ọ nwere ike kee ya n'ime DC Motors na AC moto.
1) DC Motors nwere ike kewaa dị ka usoro na-arụ ọrụ ụkpụrụ: brushless DC Motors na leghaara DC Motors.
Enwere ike kewaa moto DC n ’okpukpu: igwe magnet DC na igwe eletriki electromagnetic.
A na-ekewa igwe eletriki Electromagnetic DC: usoro DC nwere obi ụtọ, ihe ọkụkụ na-enweghị isi, ụgbọ ala DC na-enwe obi ụtọ na iche iche.
Na-adịgide adịgide ndọta DC Motors na-ekewa n'ime: obere ụwa na-adịgide adịgide ndọta DC Motors, ferrite adịgide adịgide Igwe Ọdụdọ DC Motors na alnico na-adịgide adịgide Igwe Ọdụdọ DC Motors.
2) N’etiti ha, a nwekwara ike ị kewaa ụgbọ ala AC n’ime: otu moto na –esi n’usoro nke atọ.
2. Dịka usoro ahụ na ụkpụrụ ọrụ ya, enwere ike kewaa ya na DC motors, asynchronous Motors and synchronous Motors.
1) Enwere ike ịkekọrịta ndị nwere mmekọrịta dị iche iche: igwe na-arụ ọrụ magnet na-adịgide adịgide, motors synchronous motors and hysteresis synchronous Motors.
2) A na-ekewa Motors Asynchronous n'ime motọ na-abanye na Motors commutator.
Enwere ike ikewapụta motọ nke atọ n'ime motọ asynchronous nke atọ, otu moto asynchronous na shaded-pole asynchronous Motors.
AC commutator Motors nwere ike kewaa: otu-adọ usoro Motors, AC na DC sọrọ-nzube Motors na repulsion Motors.
3. Dabere na ọnọdụ mmalite na ọrụ, enwere ike kee ya n'ime: capacitor na-ebido otu-phase asynchronous motor, capacitor na-arụ ọrụ otu-phase asynchronous motor, capacitor-amalite otu-phase asynchronous motor na split-phase single-phase asynchronous moto.
4. Dị ka nzube ahụ si dị, a ga-ekewa ya na: ịnya ụgbọ ala na njikwa moto.
1) Enwere ike ịkekọrịta mbanye ụgbọala n'ime: motọ maka ngwaọrụ eletriki (gụnyere ngwaọrụ maka ịkụ ala, polishing, polishing, grooving, cutting, reaming, wdg), akụrụngwa ụlọ (gụnyere igwe ịsa ahụ, ndị ọkụ eletrik, friji, ntụ oyi, teepu ndekọ. , ndị na-edekọ vidiyo, wdg), ndị na-egwu DVD, ndị na-ehicha igwe, kamera, ndị na-ehicha ntutu, igwe eletriki, wdg.) na ngwa igwe ndị ọzọ n'ozuzu ha (gụnyere obere ngwaọrụ igwe dị iche iche, obere igwe, akụrụngwa ọgwụ, akụrụngwa eletriki, wdg.) moto.
2) A na - ekewa igwe na - achịkwa igwe n’ime igwe na steepụ igwe.
5. Dabere na nhazi nke rotor, enwere ike kewaa ya n'ime: igwe mkpuchi induction (akpọ squirrel cage asynchronous motors in the old standard) na ọnya rotor induction motors (nke a na-akpọ motors asynchronous motors in the old standard).
6. Dị ka ọsọ ọsọ si arụ ọrụ, enwere ike ịkewa ya n'ime: igwe na-agba ọsọ ọsọ, ụgbọ ala na-adịghị ala ala, ngwa ngwa ọsọ ọsọ, na igwe na-agbanwe agbanwe. A na-ekewa ndị na-agba ọsọ ọsọ ọsọ na igwe mbelata gia, igwe mbelata electromagnetic, motọ na-agbazi na mwepụ nke mpe mpe mpe akwa.
DCdị DC
Workingkpụrụ ọrụ nke onye na-emepụta DC ga-agbanwe ike electromotive na-agbanwe na armature na-abanye n'ime ike electromotive DC mgbe a na-adọta ya site na njedebe nke onye na-ebugharị ya na ọrụ ngbasa nke ahịhịa.
The direction of the induced electromotive force is determined according to the right-hand rule (the magnetic line of induction points to the palm of the hand, the thumb points to the direction of movement of the conductor, and the other four fingers point to the direction of the induced electromotive force in the conductor).
arụ ọrụ ụkpụrụ
A na-ekpebi ntuziaka nke onye na-eduzi ya site na iwu aka ekpe. Umu abuo a nwere ikike na ogba aka. A na-akpọ oge a electromagnetic torque na igwe eletrik na-agbanwe. Ntuziaka nke torque na-emegide oge elekere anya na mgbali iji mee ka armature bugharia na uzo ozo. Ọ bụrụ na ọnya electromagnetic nwere ike imeri ihe mgbochi na-eguzogide na armature (dị ka mgbatị na-eguzogide nke esemokwu na esemokwu ndị ọzọ), ogwe aka ahụ nwere ike ịtụgharị na ụzọ ntụgharị.
Igwe DC bụ moto nke na-agba ọsọ na ọkụ ọkụ DC na-ejikwa ya na teepu teepu, ndị na-edekọ vidiyo, ndị na-egwu DVD, ndị na-eji ọkụ eletrik, ndị na-ehicha ntutu, nche elektrọnik, ihe eji egwuri egwu, wdg.
Synchronous moto
Motor synchronous bụ igwe AC na-ahụkarị dị ka moto induction. Njirimara bụ: n'oge arụ ọrụ ala, enwere mmekọrịta mgbe niile n'etiti ọsọ rotor na okporo ugboro n = ns = 60f / p, na ns na-agba ọsọ ọsọ. Ọ bụrụ na ugboro nke grid ike anaghị agbanwe agbanwe, ọsọ nke ngwa ọrụ mmekọrịta na-agbanwe agbanwe na-adịgide adịgide n'agbanyeghị nha nke ibu ahụ. Ejikọtara igwe na synchronous na ndị na-arụ ọrụ na igwe na-arụ ọrụ nke ọma. Igwe AC na ụlọ ọrụ ike ọgbara ọhụrụ bụ ọkachasị ire moto.
arụ ọrụ ụkpụrụ
Ntọala nke oghere magnetik: a na-agbanye winding excitation na DC excitation ugbu a iji gosipụta ndọta magnet n'etiti polarities, ya bụ, etinyere oghere magnetik.
Gearboxes nwere ọtụtụ ngwa, dị ka igwe ikuku. Gearboxes bụ ihe dị mkpa dị mkpa nke eji arụ ọrụ na ikuku ikuku. Isi ọrụ ya bụ ịnyefe ikike sitere na ikuku ikuku n'okpuru ọrụ nke ifufe na generator ma mee ka ọ nweta ọsọ ọsọ kwekọrọ.
N'ozuzu, ọsọ ntụgharị nke wiil ikuku dị obere, dị nnọọ obere karịa ọsọ ntụgharị nke igwe na-emepụta ọkụ chọrọ iji nweta ọkụ eletrik. Ọ ga-ghọtara site ọsọ na-abawanye mmetụta nke gia ụzọ nke gia igbe, otú gia igbe na-akpọkwa ọsọ na-abawanye igbe.
Gearbox nwere ọrụ ndị a:
1. Osooso ma na-agbarita ngwa ngwa bu ihe a na-akpo gearbox.
2. Gbanwee uzo mbufe. Dịka ọmụmaatụ, anyị nwere ike iji ngwa ọrụ abụọ na-ebugharị ikike ahụ n'akụkụ osisi ọzọ na-agbagharị.
3. Gbanwee torque na-agbanwe agbanwe. N'okpuru otu ọnọdụ ike ahụ, ngwa ngwa ngwa ahụ na-agbagharị, obere ihe ahụ dị na osisi ahụ, na ntụgharị.
4. Clutch function: Anyị nwere ike ikewapụ engine na ibu site na nkewa abụọ mbụ meshed Kwadobe. Dị ka brek ipigide na na.
5. Nkesa ike. Dịka ọmụmaatụ, anyị nwere ike iji otu injinị rụọ ọtụtụ okporo ahịhịa ohu site na isi osisi gearbox, iji ghọta ọrụ nke otu injin na-anya ọtụtụ ibu.
Its volume is 1/2 smaller than that of a soft gear reducer, its weight is reduced by half, its service life is increased by 3 to 4 times, and its carrying capacity is increased by 8 to 10 times. Widely used in printing and packaging machinery, three-dimensional garage equipment, environmental protection machinery, conveying equipment, chemical equipment, metallurgical mining equipment, iron and steel power equipment, mixing equipment, road construction machinery, sugar industry, wind power generation, escalator and elevator drives, shipbuilding, light High-power, high-speed ratio, high-torque occasions such as industrial field, papermaking field, metallurgical industry, sewage treatment, building materials industry, lifting machinery, conveyor line, assembly line, etc. It has a good price-performance ratio and is conducive to the matching of localized equipment.
