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Prepressing spacer capable of improving windmilling performance of cutter

A performance and preloading technology, applied in the field of road milling equipment and road pick parts, can solve problems such as wear of preloaded gaskets, achieve uniform force, improve free rotation, and facilitate production and processing.

Inactive Publication Date: 2016-08-17
JIANGSU UNIV
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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 solve the wear problem of the tool preloading pads used in road milling machines, and propose a preloading pad that can improve the tool rotation performance and slow down its friction rate

Method used

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  • Prepressing spacer capable of improving windmilling performance of cutter
  • Prepressing spacer capable of improving windmilling performance of cutter
  • Prepressing spacer capable of improving windmilling performance of cutter

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Embodiment Construction

[0017] See figure 1 with figure 2 , The pre-compressed gasket 3 of the present invention is composed of a plate-shaped main body 3-1, the thickness of the plate-shaped main body 3-1 is b2, the geometric center point of the plate-shaped main body 3-1 is provided with a central hole 3-2, the geometric center point It is point O, the central hole 3-2 is a circular through hole, and the diameter of the central hole 3-2 is D4. The peripheral edge of the plate-shaped main body 3-1 is circular, and its peripheral edge diameter is D1. A plurality of notches 3-3 are arranged at the peripheral edge, and the plurality of notches 3-3 are evenly arranged in the circumferential direction, and each notch 3 -3 are all recessed in the direction of the center point O of the plate-shaped body 3-1, so that the opening of the notch 3-3 faces outward, and the thickness of each notch 3-3 is b2. The present invention has 6 notches 3-3 in total, so that the angle β between the center lines of two adja...

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Abstract

The invention discloses a prepressing spacer capable of improving windmilling performance of a cutter, for a pavement surface milling machine. The prepressing spacer consists of a plate-like main body, wherein a central hole is formed in a geometric center point of the plat-like main body, and the periphery edge of the plate-like main body is circular; a plurality of notches which are uniformly arranged in the circumferential direction are arranged on the periphery edge, each notch is depressed towards the direction of the center point of the plate-like main body 3-1; the thickness of the plate-like main body at the central hole is the largest, and is gradually decreased from the central hole to the periphery; points B at the bottoms of the notches are on the same circumference of a radial cross section, the central point of the circumference is used as a center of a circle, the diameter of the circumference is D2, wherein D2=(D1-10)mm, and D1 is the diameter of the periphery edge of the plate-like main body. The prepressing spacer disclosed by the invention not only can timely improve the free rotation of the cutter when the cutter is clamped, but also can alleviate wear and tear between the prepressing spacer and a cutter holder, so that the stress condition of the cutter is improved, and the cutter is uniformly stressed; wear and eccentric wear are reduced, and the normal service life of the cutter is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of road milling equipment and road pick parts, in particular to a tool pre-compressed gasket for a road milling machine. Background technique [0002] Pavement milling equipment is used for road maintenance and pavement repair. The core component of the milling equipment is the milling rotor. The milling rotor is composed of a drum, a drive assembly, an aggregate spiral, a throwing plate, a cutter seat, and a cutter (cutter head and cutter). The general term for the body), the tool is installed on the tool holder, and a pre-compressed gasket is placed between the tool and the tool holder. This pre-compressed gasket not only facilitates installation, but also has the effect of increasing the speed of the tool and protecting the outer surface of the tool seat from being worn. Therefore, a reasonable design of the gasket structure is particularly important for improving milling efficiency and milling quality. Howev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/088
CPCE01C23/088
Inventor 赵斌娟张成虎
Owner JIANGSU UNIV
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