TWZ(B) Series Foot Operated Drum Brakes

 

1. Series Overview & Core Function

The TWZ(B) Series (T=Foot, W =} Drum, Z=Basic, B=Hydraulic-}Assisted) yog engineered raumanual braking tswj, nrog rau ob qhov sib txawv hais txog cov kev xav tau sib txawv:

TWS (Basic): Tsuas yog nyob ntawm kev sib txuas ntawm cov khoom siv sib txuas (pedal + levers) kom xa cov ko taw quab yuam rau cov khau nres. Qhov zoo tshaj plaws rau lub teeb- daim ntawv thov lub luag haujlwm (0.5-5 tons) qhov twg qis braking torque txaus.

TWZ(B) (Hydraulic{0}}Assisted): Kev sib koom ua ke ntawm lub tog raj kheej hydraulic me me kom ua kom lub zog pedal, txo cov neeg siv zog thaum nce lub zog. Haum rau nruab nrab- cov dej num ua haujlwm (3-10 tons) uas xav tau lub zog nres ntau dua.

Lawv cov haujlwm tseem ceeb sib koom suav nrog:

Tus neeg teb xov tooj -Controlled Stopping: Ua kom du, maj mam deceleration lossis nres thaum muaj xwm txheej ceev ntawm ko taw siab, qhov tseem ceeb rau kev tso cov khoom me me lossis taug kev nruj.

Static Load Holding: Kev ruaj ntseg machinery / loads thaum lub pedal yog xauv (ntawm ib tug neeg kho tshuab latch), tshem tawm qhov yuav tsum tau rau tus neeg teb xov tooj input input.

Backup Braking: Ua hauj lwm raws li ib tug txhim khu kev qha phau ntawv thaub qab rau automated systems, kom muaj kev ruaj ntseg nyob rau hauv lub hwj chim tsis ua hauj lwm los yog thawj nres faults.

2. Txoj Cai Ua Haujlwm

Ob qho kev hloov pauv ua haujlwm ntawm phau ntawv actuation tab sis sib txawv hauv kev sib kis, hloov mus rau qhov xav tau:

2.1 TWZ (Basic Mechanical Actuation)

Nres Tso Tawm: Thaum lub pedal tsis muaj kev nyuaj siab, rov qab springs retract lub nres khau, tsim ib tug 0.3-0.5mm qhov sib txawv ntawm nkawm khau thiab rotating nruas. Lub nruas (txuas mus rau lub tshuab ncej) tig tau ywj pheej.

Kev sib koom tes nres: Kev ntxhov siab ntawm lub pedal rub ib qho kev sib txuas ntawm cov neeg kho tshuab, uas thawb cov khau nres rau lub nruas. Braking torque yog ncaj qha proportional rau pedal quab yuam (30-80 N), ua kom yooj yim tab sis yuav tsum tau siv zog ntau dua rau cov neeg siv khoom hnyav dua.

Load Holding: Lub pedal latch xauv qhov kev sib txuas hauv qhov "khau khiab" txoj hauj lwm, tuav lub zog kom tuav lub load statically.

2.2 TWZ(B) (Hydraulic-Assisted Actuation)

Nres Tso Tawm: Zoo ib yam li TWZ variant- rov qab caij nplooj ntoos hlav rov qab khau thaum lub pedal tsis ua haujlwm.

Kev sib koom tes nres: Kev ntxhov siab rau lub pedal thawj zaug ua rau lub twj tso kua mis hydraulic me me (ua ke rau hauv lub rooj sib txoos pedal). Lub twj tso kua mis tsim tawm qis- rau- nruab nrab siab (5-12 MPa), uas tsav lub tog raj kheej hydraulic rau ntawm tus nres. Lub tog raj kheej txhawb nqa lub zog los thawb cov khau tiv thaiv lub nruas, txo qhov xav tau pedal quab yuam los ntawm 40-60% piv rau TWZ yooj yim.

Load Holding: Dual -locking system (pedal latch + hydraulic check valve) tswj lub siab / lub tog raj kheej txoj hauj lwm, ua kom ruaj ntseg load tuav txawm tias lub pedal tawm me ntsis.

3. Core Structure & Cov Khoom Tseem Ceeb

Lub TWZ thiab TWZ(B) sib koom ib qho qauv, rugged tsim nrog variant - cov khoom tshwj xeeb rau kev sib kis:

3.1 Sib Koom Tes

Ko taw Pedal & Txuas: Ib qho hnyav- lub luag haujlwm steel pedal nrog cov tsis muaj - cov roj hmab rub tawm, txuas nrog zinc- plated qib system rau corrosion kuj thiab kav ntev.

Nruas Braking Assembly:

Nres Khau: Dual arcuate nkawm khau ua los ntawm QT400 ductile hlau (TWZ) los yog QT500 (TWZ(B)) rau lub zog.

Friction Linings: Resin-raws li cov ntaub ntawv sib xyaw (μ Ntau dua lossis sib npaug ntawm 0.40) nrog rau qhov kub thiab txias txog 300 degree, riveted rau khau kom hloov tau yooj yim.

Nruas Compatibility: Tsim los rau 150-400mm txoj kab uas hla drums (khoom siv: 45 # steel / cam khwb cia hlau), nrog adjustable brackets kom haum raws li qhov sib txawv variations.

Rov qab & Xauv Mechanism:

Rov qab Springs: Siab- nro steel springs uas pib dua lub pedal thiab khau thaum lub siab tso tawm.

Mechanical Pedal Latch: Lub pas nrig lossis tus pin uas tuav lub pedal nyob rau hauv txoj haujlwm nyuaj siab rau kev tuav zoo li qub.

3.2 TWZ(B)-Specific Hydraulic Components

Mini Hydraulic Pump & Lub tog raj kheej: Lub twj tso kua mis piston (pedal{0}}mounted) thiab ib zaug - ua haujlwm hydraulic lub tog raj kheej (brake-mounted) uas ua kom nrov zog yam tsis muaj hydraulics nyuaj.

Tsawg-Lub Siab Hoses & Kos Valve: Reinforced roj hmab hoses ( ntsuas rau 15 MPa) thiab ib daim tshev valve los tiv thaiv kev poob siab thaum tuav, kom ntseeg tau.

4. Cov yam ntxwv tseem ceeb & qhov zoo

TWZ(B) Series sawv tawm rau nws txoj kev yooj yim, yoog raws, thiab tus neeg siv- qauv tsim:

4.1 1. Dual -Variant Flexibility

Kev xaiv ntawm TWZ (mechanical) thiab TWZ(B) (hydraulic-pab) tso cai rau kev sib txuam ntawm tus nres kom thauj khoom xav tau- zam dhau- engineering (rau cov haujlwm teeb) lossis tus neeg teb xov tooj qaug zog (rau cov haujlwm nruab nrab).

4.2 2. Yooj yim & Tsawg-Kev tu

Tsis muaj cov khoom siv hluav taws xob nyuaj lossis siab - hydraulics siab (txawm tias TWZ(B)), txo cov ntsiab lus tsis ua haujlwm.

Kev sib txhuam cov ntaub qhwv tuaj yeem hloov tau tsawg dua los yog sib npaug li 20 feeb nrog cov cuab yeej yooj yim, thiab TWZ (B) hydraulic system tsuas yog yuav tsum tau kuaj xyuas roj qee zaus (cov roj ntxhia hydraulic).

4.3 3. Intuitive & Fatigue-Txo kev ua haujlwm

Lub TWZ(B) kev pabcuam hydraulic txiav pedal quab yuam mus rau 20-50 N, ua rau nws yooj yim rau kev siv txuas ntxiv (piv txwv li, cov neeg tsav tsheb lub tsheb thauj khoom).

Linear quab yuam teb (ob qho tib si variants) ua kom muaj kev tswj xyuas meej, zam kev thauj khoom sway lossis tshuab jerking thaum nres.

4.4 4. Rugged rau Industrial Environments

Tag nrho cov khoom hlau (pedal, txuas, nres ncej) yog coated nrog epoxy resin (60-80μm thickness) rau IP54 tiv thaiv, tiv thaiv plua plav, noo noo, thiab corrosion tsis kam.

Kev vibration-cov khoom siv tiv thaiv (cov txiv ntseej xauv, lub caij nplooj ntoos hlav ntxhua) tiv thaiv cov khoom xoob hauv siab - cov khoom siv vibration (xws li, me me winches).

5. Cov ntawv thov ib txwm

Cov koob hloov mus rau lub teeb - mus rau - nruab nrab lub luag haujlwm phau ntawv tshuab thoob plaws kev lag luam:

Variant	Daim ntawv thov
TWZ	Me me rhiav winches (tsawg dua lossis sib npaug li 3 tons), tes- cov khoom siv thawb lub laub, mini jib cranes (0.5-2 tons), textile machine drives.
TWS (B)	Nruab nrab- cov khoom thauj khoom thauj (3-8 tons), me me gantry cranes (2-5 tons), qis-cov tsheb thauj khoom ceev ceev, qhov chaw tsim kho mini-winches (5-10 tons).

6. Technical Specifications (TWZ vs. TWZ(B))

Parameter	TWS (Basic)	TWZ(B) (Hydraulic{0}}Assisted)
Nres Hom	Ko taw- ua haujlwm tshuab nruas nres	Ko taw- ua haujlwm hydraulic- pab nruas nres
Compatible Drum Diameter	150-300 hli	200-400 hli
Rated Braking Torque	80–500 N·m	300–1,500 N·m
Txoj kev Actuation	Mechanical lever linkage	Mechanical + hydraulic amplification
Yuav tsum tau Pedal Force	30–80 N	20–50 N
Hydraulic System (TWZ(B))	- Ua haujlwm siab: 5-12 MPa; Cov kua dej: Mineral roj (ISO VG 46)	-
Friction Lining Khoom	Resin-raws li kev sib xyaw	Resin-semi-metallic composite
Txoj Kev Pabcuam Lub Neej	Ntau dua lossis sib npaug li 6,000 teev	Ntau dua lossis sib npaug li 7,000 teev
Ua haujlwm kub	-10℃rau 60 degree	-20℃rau 70 degree
Chav kawm tiv thaiv	IP54	IP54
Lub Sijhawm Teb (Full Engagement)	Tsawg dua lossis sib npaug li 1.5 vib nas this	Tsawg dua lossis sib npaug li 1.2 vib nas this
Mounting Hom	Bracket-mounted	Flange/bracket-mounted
Qhov hnyav (Nres + Pedal)	8-20 kg	15-35 kg

Lub TWZ(B) Series sib npaug qhov yooj yim thiab kev ua tau zoo, muab tus nqi - siv tau zoo phau ntawv braking tov kom haum rau lub teeb - rau - nruab nrab lub luag haujlwm kev xav tau - qhov chaw tswj hwm thiab kev saib xyuas qis yog qhov tseem ceeb ntawm kev nyab xeeb.

 

 

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