Cab of engineering machine

A technology for construction machinery and cabs, applied in the field of cabs, can solve problems such as high welding quality requirements and high costs, and achieve the effects of low manufacturing difficulty, saving steel, and reducing manufacturing costs

Inactive Publication Date: 2012-07-25
GUANGXI LIUGONG MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction machinery cab with a simple structure and save steel in view of the disadvanta

Method used

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  • Cab of engineering machine
  • Cab of engineering machine
  • Cab of engineering machine

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1:

[0023] Figure 1 to Figure 3 The first embodiment of the present invention is shown. figure 1 Shown is the cab frame, that is, ROPS includes four uprights 1. The four uprights 1 are connected by four crossbeams at their upper and lower parts, and one of the lower crossbeams 2 of each upright 1 is provided with a through the lower crossbeam 2 The square through hole of beam 2, such as figure 2 image 3 As shown, a square mounting shaft 5 is arranged in the through hole. The upper and lower ends of the square mounting shaft 5 are welded to the lower cross beam 2. A hole is provided in the center of the lower end surface of the mounting shaft 5, and the hole wall is tapped with threads. When the cab is connected to the frame for installation, place the cab on the cab mounting seat 4, and the cab mounting bolts 7 from below the cab mounting support 4 go up through the mounting holes on the cab mounting support 4 and The mounting shaft 5 on the lower cross beam 2 ...

Example Embodiment

[0025] Example 2:

[0026] Figure 4 to Figure 5 The second embodiment of the present invention is shown. Such as Figure 4 As shown, the cab framework or ROPS includes four uprights 1. The four uprights 1 are connected by four crossbeams at the upper and lower parts of the four uprights. The connection between each of the uprights 1 and one of the lower crossbeams 2 is U-shaped. Slotted reinforcing plate 3, a circular through hole is provided on the lower cross beam 2 at a position below the U-shaped grooved reinforcing plate 3, and a round steel pipe is provided in the through hole to make a mounting shaft 5, such as Figure 5 As shown, the upper and lower ends of the mounting shaft 5 are welded to the lower cross beam 2, and the inner hole wall of the mounting shaft 5 is tapped with threads. A circular backing plate 6 is provided at the lower end of the installation shaft so as to be in full-area contact with the cab shock absorber 8 when the cab is installed. When the cab is...

Example Embodiment

[0027] Example 3:

[0028] Figure 6 to Figure 7 The third embodiment of the present invention is shown. Such as Image 6 As shown, the cab framework or ROPS includes four uprights 1. The four uprights 1 are connected by four crossbeams at the upper and lower parts. Crossbeams are provided at the roots of each upright 1, that is, where the two lower crossbeams 2 are adjacent to each other. The connecting reinforcement plate 9 connects the two adjacent lower beams, and a circular through hole is provided on the beam connecting reinforcement plate 9, such as Figure 7 As shown, a mounting shaft 5 made of round steel pipes is provided in the through hole. The upper and lower ends of the mounting shaft 5 are welded to the beam connecting reinforcing plate 9 and the inner hole wall of the mounting shaft 5 is tapped with threads to strengthen the installation The shaft 5 is connected with the beam connecting reinforcement plate 9, and an annular convex ring is provided on the outer si...

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Abstract

The invention relates to a cab of an engineering machine, which is provided with an ROPS (roll-over protection system) and aims to overcome the shortcoming that a thick and heavy steel plate is welded at the bottom an existing cab to be used as a mounting support so that steel consumption is high. The cab comprises a framework, the framework consists of upright columns and transverse framework components, the upright columns are vertically arranged, the transverse framework components are positioned below the middles of the upright columns, vertical through holes are disposed on the transverses framework components and are adjacent to the upright columns, and threaded connecting components which are used for being connected with mounting bots of the cab in a threaded manner are arranged at the upper ends of the through holes or disposed in the through holes. During installation, the threaded connecting components are connected with the mounting bolts of the cab so that the cab is mounted without welding the thick and heavy steel plate at the bottom of the cab, steel materials are saved, and manufacturing cost is reduced.

Description

technical field [0001] The invention relates to a cab, in particular to an engineering machinery cab. technical background [0002] The construction machinery cab is a separate component, which needs to be reliably connected to the frame; most of the existing construction machinery contains a steel frame, and the cab is connected to the frame when the cab is installed. The steel frame is sometimes expressed as a rollover protective structure (ROPS). At this time, it must have sufficient connection strength with the frame to prevent the cab from being separated from the frame after the rollover, resulting in the rollover protection structure not functioning normally to protect the driver. Existing cabs that contain profiled steel skeletons are all welded thick steel plates on the bottom of the profiled steel frame of the cab, and the drilling and tapping threads on the thick steel plates are threaded with the mounting bolts of the cab to realize the fixed installation of the ...

Claims

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Application Information

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IPC IPC(8): B62D33/06
Inventor 陈红亮初长祥谭世颖冯豪梁昌明吕兴业
Owner GUANGXI LIUGONG MASCH CO LTD
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