CRUSHING TOOTH AND SELF-TRAVELING TYPE CRUSHER - HITACHI CONSTRUCTION MACHINERY

Title:

CRUSHING TOOTH AND SELF-TRAVELING TYPE CRUSHER

Document Type and Number:

Japanese Patent JP2007190453

Kind Code:

A

Abstract:

To provide a crushing tooth capable of easily grasping the abrasion state of the crushing tooth, and a self-traveling type crusher.

Holes 151, 152 are provided on lower parts of the crushing teeth 51, 52 from a back surface. Distances from apex parts of crests and bottom parts of bottoms of the crushing teeth 51, 52 before worn to bottom parts 151a, 152a of the respective holes 151, 152 are made to d1, d2 respectively. A replacement of a top and a bottom or exchange of the crushing teeth 51, 52 is not required and the distance d1 is set such that the hole 151 appears on the surface when the abrasion progresses to some extent. Further, the distance d2 is set such that the hole 152 appears on the surface when the abrasion progresses to the degree that replacement of the top and bottom or exchange of the crushing teeth 51, 52 is required. Thereby, the timing of replacement of the top and the bottom of the crushing teeth 51, 52 or exchange of the crushing teeth 51, 52 can be informed to an inspector by the holes 151, 152 appeared on the surfaces of the crushing teeth 51, 52.

Inventors:

OONAMI ARIMASA
TAWARA MASANORI
ENDO ICHIO

Application Number:

JP2006008600A

Publication Date:

August 02, 2007

Filing Date:

January 17, 2006

Export Citation:

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Assignee:

HITACHI CONSTRUCTION MACHINERY

International Classes:

B02C1/02; B02C21/02

Domestic Patent References:

JPH0182343U	1989-06-01
JPS57184748U	1982-11-24
JPH01163539U	1989-11-15
JP2001173695A	2001-06-26
JP2001070810A	2001-03-21

Attorney, Agent or Firm:

Fuyuki Nagai

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