1、 Basic information of the whole machine
Table
Project standard factory parameters
Model Cat 307D Standard Tail Rotary Small Excavator (Non CR Short Tail, 2009-2014 Production)
Produced in Jiangsu Wujiang Carter Joint Venture Factory
The operating weight of the whole machine (450mm steel tracks+enclosed cab, standard boom, full fuel including driver) is 7193kg (7.193 tons); Rubber track version 7075kg
Simple sunshade with a total weight of 7020kg
Standard earthwork bucket capacity (SAE dump) 0.31m ³; Optional 0.18m ³ digging bucket and 0.33m ³ light load bucket
Standard bucket width (with side teeth) 820mm
Standard 450mm three bar wear-resistant steel track shoes; Optional 450mm thick rubber track
The chassis structure is fixed and widened, and cannot be extended or retracted; Bulldozer blade with a total width of 2300mm
The tail rotation form is standard long tail rotation, with a rear rotation radius of 1750mm. Narrow basements and narrow tunnels are prone to scratching and rubbing against walls
The side swing angle of the boom is 24 ° left/34 ° right, and frequent movement of the vehicle is required for side excavation operations
Applicable working conditions include rural infrastructure construction, building foundation pits, fish pond dredging, municipal pipelines, and 85 type crushing hammers; Only applicable to suburban construction sites with no restrictions on emissions, and restricted to urban environmental protection construction sites
2、 Overall dimensions for transportation of the whole machine (unit: mm, 3.7m standard main arm+1.67m standard boom)
Total length of the machine: 6290
Transportation width of the whole machine: 2300
Cabin transportation height: 2630; Simple shed height 2590
Minimum ground clearance: 420
Track total length: 2760; Track grounding length 2290
Track gauge: 2200
Rear turning radius: 1750mm
Maximum lifting height of bulldozer: 364mm; excavation depth: 430mm
Ground clearance of counterweight: 760
3、 Power system (Mitsubishi 4M40-TL four cylinder turbocharged diesel engine)
Engine model: Mitsubishi 4M40-TL water-cooled four cylinder direct injection turbocharged diesel engine
Rated net power: 41.5kW (55.6 horsepower)/2200rpm; Total power 43kW (57.6 horsepower)
Maximum torque: 168N · m @ 1400rpm, low-speed high torque, long-term crushing is not easy to withstand high temperatures and does not lose speed
Displacement: 2.83L; cylinder diameter 95mm x stroke 100mm
Emission standards: National III/Tier4 interim, no DPF, no urea, direct diesel engine, unable to enter urban environmental protection construction sites
Electrical system: 24V, dual 12V 90Ah batteries, 35A generator
Fuel tank capacity: 135L, continuous field construction for 8-10 hours a day without refueling
Energy saving configuration: 3-second automatic idle without operation, standard/strong dual power mode, standard mode saves 12% fuel
4、 Hydraulic system (dual variable plunger load sensing hydraulic)
Main pump configuration: Dual variable plunger pump, 2200rpm total flow rate 128L/min
Overflow pressure of main working circuit: 24.5MPa; Crushing auxiliary circuit 21MPa; Rotary circuit 24MPa
Original factory standard single auxiliary crushing oil circuit, compatible with 80/85 small crushing hammers, spiral drills, wood grabbing tools, and quick change joints
Keep the circuit straight, the walking and digging composite actions do not interfere with each other, and the large-scale leveling is smooth
The flow regeneration circuit of the boom and stick shortens the operating cycle and reduces fuel consumption
Hydraulic oil tank capacity: 51L; total oil volume of the entire hydraulic system is 94L
5、 Standard boom excavation performance (ISO standard, unit: mm/kN)
1. Scope of homework
Maximum excavation radius on the ground: 6150
Excavation radius of shutdown face: 6020
Maximum excavation depth: 4050
Maximum excavation depth at 2.44m level: 3490
Vertical maximum excavation depth: 3640
Maximum excavation height: 7180
Maximum unloading height: 5160
2. Digging power
Bucket excavation force: 50.6kN
Standard boom excavation force: 37.1kN; extended boom 33.7kN
3. Walking and turning performance
Rotation speed: 10rpm, simple rotation buffer, start stop impact greater than the new National IV model
Dual speed walking (steel tracks): low speed of 3.1km/h/high speed of 5.0km/h
Maximum traction force of the whole machine: 56.7kN, not easy to slip on muddy and steep slopes
Climbing ability: 70% (35 ° steep slope)
Ground pressure ratio (450mm steel track cab version): 41.2kPa
6、 Full vehicle oil filling capacity
Diesel tank: 135 L
Hydraulic oil tank: 51 L, hydraulic oil for the whole machine: 94 L
Engine oil: 10.2 L
Total capacity of cooling system: 15.8 L
Unilateral walking motor gear oil: 1.0 L, totaling 2.0 L on both sides
Rotary reducer gear oil: 1.2 L
7、 Chassis heavy load configuration
Single side support wheel: 5 pieces; Single side sprocket wheel: 1 piece
Fully sealed self-lubricating track chain, resistant to sediment and wear, with a longer lifespan
External butter type track tensioning cylinder, easy and convenient to adjust and maintain
Integrated widened and thickened bulldozer shovel, independent lifting oil cylinder, high efficiency in backfilling and leveling
Thickened X-shaped integral welded frame with protective steel plate at the bottom, resistant to long-term breakage and deformation