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Design of grip for LT-89 tractor

  • Added: 09.07.2014
  • Size: 14 MB
  • Downloads: 0
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Description

Course project. Drawings, Explanatory Note

Project's Content

Name Size
icon proektirovanie_zahvata_dlja_traktora_lt_89.rar
14 MB
icon design
icon 614.cdw
71 KB
icon NOTE
icon TASK.doc
30 KB
icon Note_by_Labans.docx
2 MB
icon application.docx
11 KB
icon contents.docx
19 KB
icon TITULNIK.docx
16 KB
icon Capture
icon 2012_03_07_159.jpg
2 MB
icon 2012_03_07_160.jpg
2 MB
icon 2012_03_07_161.jpg
1 MB
icon 2012_03_07_162.jpg
1 MB
icon 2012_03_07_163.jpg
2 MB
icon 2012_03_07_164.jpg
2 MB
icon Castor-bean_tree.cdw
78 KB
icon patents
icon 2034767.doc
222 KB
icon 2213690.doc
553 KB
icon My_patents
icon doc878ument.pdf
140 KB
icon Microsoft_Office_Word_Document.docx
101 KB
icon MY_PATENT.doc
681 KB
icon Potents_Labanov
icon document.pdf
76 KB
icon Microsoft_Office_Word_Document.docx
62 KB
icon drawing.cdw
75 KB
icon CHERTEZH2.cdw
75 KB
icon Chertezh23.cdw
91 KB
icon Chertezh616.cdw
74 KB
icon DRAWINGS
icon Packet_grip_12.KP.MM.ZU.01.00.000.SP.spw
175 KB
icon Capture.cdw
181 KB
icon Kinematic_lock-on_diagram.cdw
132 KB
icon traverse.cdw
90 KB
icon Jaw_12.KP.MM.ZU.01.01.000.SP.spw
164 KB
icon Jaw.cdw
91 KB

Additional information

Contents

Entry

1. Brief overview of tracking machines and analysis of existing gripping structures

1.1 Brief characteristic of the LT- tracking tractor

1.2 Domestic structures of grips of forest track tires

1.3 Foreign designs of wood track tires

1.4 Varieties of tick-borne grips

2. Overview and Analysis of Capture Devices by Patent Source

3. Modernization of packet capture based on LT- machine

4. Determination of basic parameters of the working surface of the gripper

5. Create a tick mark profile

6. To Create a Catch Layout and Kinematic Scheme

7. Calculation of basic parameters and selection of hydraulic drive elements

8. Calculation of gripping elements per meter

8.1 Determination of bending moments acting on tick-borne products

8.2 Selection of material and section profile of the glue

8.3 Check of the axis connecting the hydraulic cylinder and the tick tick-tick-tick-tick-tick-tick-tick

8.4 Check of cross-arm axis

8.5 Check of axle connecting cross-arm and tick-piece

8.6 Check of dangerous cross-section of cross-arm

Conclusion

List of sources used

Application

Introduction

The gripping device of forest machines is intended for clamping of people or peaks of fallen trees during trawling and loading them into conic. Fallen trees are collected in a pack for trackling them to the forest horn with the help of a grip and a hydromanipulator. Parameters of tree collection mechanisms are lifting capacity and maximum gripping size.

From the moment of its appearance to the present, a large number of different types of adhesive grips have been created for track tractors with a manipulator: with one vertically located hydraulic cylinder of the drive, with two hydraulic cylinders of the drive, with horizontally located hydraulic cylinders of the drive.

Due to its simplicity, versatility and low cost, tick-borne grabs have become very widespread in logging.

The main drawbacks of the grabs are the small productivity, the difficulty of accurately guiding the grabs to fallen trees, the weak reduction of a pack of trees during trekking.

The purpose of the course project is to develop the design of the tick-borne grip of the LT89 tractor.

The objective of the course project is achieved through the following tasks:

1. A brief review and analysis of existing tick grip designs is required.

2. Calculate the basic parameters and build the profile of the gripper tick stone.

3. Calculate the grip actuator and determine its main design dimensions.

Conclusion

As a result of the development of the course project, special literature, patent documents and other scientific and technical materials were developed. This made it possible to acquire skills in the selection of the necessary information and its effective use in solving specific engineering tasks.

As a result of the design, we received a packet grip with the following parameters:

Weight of whip pack, kN................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 50

Maximum diameter of whip, m......................................... 0.4

Average diameter of whip, m................................................. 0.3

Size of tick stone opening, m........................................ 1.25

Distance between attachment axes, m....................... 0.8

Radius of curvature of the working surface of glues, m.............. 0.353

Operating pressure in the hydraulic system, mPa.................................... 10

Stroke of hydraulic cylinder rod, m............................................. 0.25

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