Presented By:-Prof. Chaudhari M. M.(Dept. Of Mechanical Engg.)

Nashik (MH)

Design of Tractor Rear Loader for constructional applications

1. Introduction

1. This prototype was created to help eliminate the need for an added machine.

2. The tractor while providing “Quick Disconnect” features. 3. The load capacity is 120 kg to 150kg and has enough lift

to be able to put loads of mulch, soil and gravel. 4. Lifting height 5 to 8 fits

Day to day front bucket are used. This bucket required hydraulic actuator. Rear bucket are no any extra requirement. Simple construction.

2. Problem Statement

Design For testing &

Validation

Front bucket used special

purpose.

Overcome this remedies to used

rear bucket.

Required extra attachment(actua

tor, linkage etc…)

Not possible attached every tractor due to

cost.

3. Problem Objective

1. Avoid human effort.

2. Reduce extra hydraulic system.

3. Reduce cost.4. Simple

engagement & disengagement.

5. Replace hydraulic by mechanical linkage.

Objective

4. MethodologySelect material.

Design bucket & other parameter. (beam)

Check design in Analysis software.

Manufacture actual model.

Testing.

Analysis

Result

Project Selection on parameter1.custemer need ,2.survey of agriculture

Considering Parameter

1.w=100-130kg, 2. input=hydrulic power

Material Selection1. material 2.strength 3.stress 4.%elongation

Why Select Tractor Directlyback sidehydrulic system is available each tractor

Tractor Model1. arjun(605) 55hp=800-900 kg

2.mahindra (575) 43.7hp=500-550Kg 3.swaraj(744) 47hp=500-600 Kg 4.sonalika(855) 55hp=750-850kg

Arjun(605) 1.power capacity=55hp

2.temp=40-600 c3.speed effect=10-15%

==

Result

Implementation

Detail/Result Analysis1.by

mathematical/experiment 2.by software

Cont.……..

A

A

PARAMETER FRONT REAR

HYDRAULIC USED NO

ATTACHEMENT MORE SIMPLE

LINKAGE MORE LESS

COST MORE LESS

TIME LESS MORE

5. Gap Identification

6. Design

Bucket Beam Lever Supporting system

Components

a. Design of Bucket

Sr no. Designation Condition Tensile strength N/mm2

Yield strengthN/mm2

BHN

1 20 Mn 2 Sheets & stripSoftenedHardened and tempered

480 300

320

550

Dimension of the bucket is L= 864 mm W= 604.5 mm H= 305 mm

Fig- Beam

b. Design of Beam

Material: Alloy steel Assume, length of AB section is 496 mm, Length of BC section is 723 mm Length of DE section is 948 mm. Total Length of the beam =2365 mm

Function:- Support to the bucket and providing up-down motion by using hydraulic power of tractor

Fig- Beam

Cont.……

Material: Mild Steel

Main Diameter: 15 mm

Collar Diameter: 20 mm

Collar Length=5 mm

Total Length= 90 mm

Selection of Pin

c. Design of Lever

Sr. no Operation description Machine used

Tool used Time in min.

1 Marking Scale By hand 10

2

Cutting Cutting machine Grinder cutter 15

3 Bending Bending machine - 15

4 Welding Arc welding - 10

5 Finishing Grinder Grinder 5

Various Process of create lever

d. Design of Support System

Material : -Alloy SteelFunction:-Providing up and down motion of beam with the help of tractor hydraulics system.

7. Assembly

Assembly of Rear Loader

8. Working

When tractor hydraulic support connected to the beam with the help of pins. The bucket up-down motion as per requirement by using hydraulics arm when the arm push front side at time bucket goes on up and arm pull backside at time bucket goes on down motion. When bucket goes on down and tractor give to rear motion the bucket fill on particular material like, silica, stone crush, agricultural waste material and bucket lift on up side by using hydraulic power then the use spring lock system and lever and bucket disengage from beam. And total material goes on tractor trolley or truck, empty space. Then the tractor goes on front motion and bucket give to down at time bucket are engage automatically by using spring return force and it also ready to fill material on bucket to tractor rear motion.

Actual Working

9. BOMSr. No. Description Material Quantity

1 bucket Alloy steel 01

2 Beam Alloy steel 01

3 lever Alloy steel 01

4 Support system Alloy steel 01

5 Ball joint Alloy steel 02

6 Spring hard drawn steel wire 01

7 Pin Alloy steel 04

8 Cotter pin/ lock pin Alloy steel 06

9 Nut Alloy steel 03

10 Bolt Alloy steel 03

11 Rope Steel wires 01

10. Analysis of BeamSr. no

Minimum Stress [MPa]

Maximum [MPa]

1 4.2168e-010 137.86

Fig1.Equivalent Stresses of Beam

Fig 2.Total Deformation of Beam

Sr. no

Minimum Deform [mm]

Maximum [mm]

1 0 18.522

11. Advantages

Simple in Construction.

bucket maintenance is

less.

No required extra hydraulic

system.

Engagement and disengagement is

simple/Easy.

Cost is less compare to the front bucket.

12. LimitationsAt the time of

operation tractor operate in reverse

condition.

Operated on the limited depth.

Time required for complete the

operation is more.

13. Future Scope

Use the hydraulic actuator which are replace by the spring. The purpose of hydraulic actuator is increase the depth of the bucket at the timing of working and also for the up-down and right-left motion.

Replace the beam in three-four section. The height of the bucket is depends on the length of the beam. So some tractor are require less height and some have required more height that way use adjustable beam to satisfy the requirement.

14. Applications

It is used in mostly construction of buildings like fill the sand, stone, crush and cements to the mixture machine .

It is used in also manufacturing of bricks in bricks industries.

It is used in also agriculture like fill the cow dung to the tractor trolley.

It is use to handle construction material like brick, crush, sand.

After the manufactured the rear bucket then we conclude the 1. The simplicity of mechanism is giving flexibility of its

effective use. This mechanism is working properly. 2. The rear bucket can also use various application such as

construction, agriculture and mining. 3. This bucket is suitable for all tractors. 4. Avoid human effort in construction and agricultural area. 5. Lifting capacity depend on the tractor hydraulic capacity.

CONCLUSION

1] Dhaval Kumar A Patel, Bhavesh P Pate and Mehul Kumar A Patel ,A Critical Review On Kinematics Of Hydraulic Excavator Backhoe Attachment,Vol. 4, No. 2, April 2015, pp.189-203

2] Bhaveshkumar P. Patel, - Jagdish M. Prajapati, Evaluation Of Bucket Capacity, Digging Force Calculations And Static Force Analysis Of Mini Hydraulic Backhoe Excavator, machine design, Vol.4(2012) No.1, ISSN 1821-1259 , pp. 59-66

3] Bhaveshkumar P. Patel and J. M. Prajapati , A Review on FEA and Optimization of Backhoe Attachment in Hydraulic Excavator, IACSIT International Journal of Engineering and Technology, Vol. 3, No. 5, October 2011, pp.505-511

4] V. B. Bhandari, “design of machine elements”, Tata McGraw hill publishing company, eighth edition (2003).

5] “Design Data Book”, compiled by PSG College of technology, published by Kalaikathir Achchagan (COIMBATORE-India),pp-1.17-1.19

REFERENCES

Thank you…!!