CN-117028402-B - Double-hinge shaft combined type hinge assembly mechanism

CN117028402BCN 117028402 BCN117028402 BCN 117028402BCN-117028402-B

Abstract

The invention relates to the technical field of pitching hinging of various types connected through double hinging shafts or multiple hinging shafts, and is particularly applied to a pitching mechanism of large equipment, and the double hinging shaft combined type hinging assembly mechanism comprises a frame (1), a cantilever crane (2), a hinging shaft (3), a first positioning component (4) and a second positioning component (5), and is technically characterized in that the hinging shaft (3) comprises a first cylindrical surface (31), a second cylindrical surface (32), a third cylindrical surface (33), a first conical surface, a second conical surface and a spigot for positioning, a radial positioning spigot (34) is arranged in front of the third cylindrical surface (33) and the second conical surface, the diameter of the second cylindrical surface (32) is larger than that of the first cylindrical surface (31), and the diameter of the first cylindrical surface (31) is larger than that of the third cylindrical surface (33). Only one set of hinge assembly mechanism is needed, the functions which can be realized by the traditional two sets of different assembly structures can be realized, and the normal installation can be realized when the axial deviation value is larger, so that the convenience and the reliability of the installation are improved.

Inventors

FENG XUEHUI
SONG BO
WANG HUI
HU JIANHUA
YI YANGYANG
LIU YINGLEI

Assignees

中煤科工集团沈阳设计研究院有限公司

Dates

Publication Date: 20260508
Application Date: 20230831

Claims (3)

1. The utility model provides a two articulated shaft combination formula articulated assembly devices, includes frame (1), cantilever crane (2), articulated shaft (3), first locating component (4), second locating component (5), its characterized in that: the hinge shaft (3) comprises a first cylindrical surface (31), a second cylindrical surface (32), a third cylindrical surface (33), a first conical surface, a second conical surface and a spigot for positioning; A radial positioning spigot (34) is arranged in front of the third cylindrical surface (33) and the second conical surface, the diameter of the second cylindrical surface (32) is larger than that of the first cylindrical surface (31), and the diameter of the first cylindrical surface (31) is larger than that of the third cylindrical surface (33); The frame (1) is connected with the arm support (2) through two identical two hinge assemblies which are arranged in a mirror image mode, the hinge assemblies are connected with a first positioning assembly (4) through the outer side ends of the hinge shafts (3) and are positioned, the first positioning assembly (4) is connected with a cylindrical surface on the hinge shafts (3) and used for restraining radial freedom degrees of the hinge shafts (3), the first positioning assembly (4) can freely slide in the width range of the cylindrical surface on the hinge shafts (3) and release axial freedom degrees, and the first positioning assembly is used for axially freely adjusting the frame (1) and the arm support (2); The inner side end of the hinge shaft (3) is connected with and positioned by a second positioning component (5), the second positioning component (5) is connected with a cylindrical surface and a positioning spigot (34) on the hinge shaft (3) and is used for axially and radially positioning the hinge shaft (3), the hinge shaft (3) and the arm support (2) are axially and radially fixed through the second positioning component (5), and the hinge shaft (3) and the frame (1) are fixed through a first positioning component (4); The first positioning component (4) comprises a first conical sleeve (401), a second conical sleeve (402), a locking component (403), a protective cover (404) and a first fixing ring (405); The outer ring of the first conical sleeve (401) is a cylindrical surface and is connected with a cylindrical hole surface of the frame (1), the inner ring is a conical surface and is connected with a conical surface of the second conical sleeve (402), the outer ring of the second conical sleeve (402) is a conical surface, the inner ring is a cylindrical surface and is connected with a first cylindrical surface (31) of the hinge shaft (3), the locking component (403) connects the first conical sleeve (401) with the second conical sleeve (402) through the conical surface, and after the locking component (403) is locked, the connecting shaft and the frame (1) are axially fixed through friction force; The second positioning component (5) comprises a joint bearing (501), a first positioning fixed end cover (502), a second positioning fixed end cover (503), a sealing element (504), a positioning sleeve (505), a sealing cover (506), a shaft end protecting cover (507), a fastening component (508) and a second fixed ring (509); The arm support (2) and the hinge shaft (3) are connected through the joint bearing (501), the freedom degree of the rotation direction is radially fixed and released, the first positioning fixing end cover (502) and the second positioning fixing end cover (503) are connected with two sides of the joint bearing (501) and used for axially positioning the joint bearing (501), the fastening component (508) integrally fixes the joint bearing (501), the first positioning fixing end cover (502), the second positioning fixing end cover (503) and the arm support (2), the sealing piece (504) is connected between the joint bearing (501) and used for sealing the joint bearing (501), the sealing cover (506) is installed on the outer ring of the hinge shaft (3) and used for protecting the hinge shaft (3) and the joint bearing (501), and the second fixing ring (509) is connected to the frame (1) and used for connecting the sealing cover (506).
2. The double-hinge combined type hinge assembly mechanism according to claim 1, wherein the frame (1) comprises a first lug plate shaft hole (11), a second lug plate shaft hole (12), a third lug plate shaft hole (13) and a fourth lug plate shaft hole (14) which are coaxially arranged; The first lug plate shaft hole (11), the second lug plate shaft hole (12) or the third lug plate shaft hole (13) and the fourth lug plate shaft hole (14) are used for radially positioning a first cylindrical surface (31) and a second cylindrical surface (32) of the hinge shaft (3).
3. The double hinge shaft combined type hinge assembly mechanism according to claim 1, wherein the arm support (2) comprises a first hinge shaft hole (21) and a second hinge shaft hole (22) for radially and axially positioning the knuckle bearing (501).

Description

Double-hinge shaft combined type hinge assembly mechanism Technical Field The invention relates to the field of open-pit mines, cement ports, bulk storage yards and engineering mechanical equipment, in particular to a double-hinge combined type hinge assembly mechanism. Background At present, in order to realize stable and reliable operation of the hinge assembly mechanism of the pitching mechanism, two groups of hinge assembly mechanisms are adopted, two groups of hinge assemblies are required to be designed into two different sets of assembly structures, one end of each hinge assembly structure is designed into a fixed hinge assembly group, the other end of each hinge assembly structure is designed into a floating hinge assembly group, and the fixed clearance size of the hinge assembly structure is used for resisting the existence of axial accumulated errors through a floating end, so that smooth assembly of two groups of hinge shafts on an installation site is realized. Generally, welding deformation can occur after welding of a large assembly welding piece, so that deviation from a design size value is caused, meanwhile, unexpected deformation caused in the processes of transportation, hoisting, transportation and the like of the large assembly welding piece is caused, axial size deviation of two hinge shafts of a frame and an arm support is large, the traditional hinge assembly of a fixed end and a floating end is realized by assembling the two hinge shafts and hoisting the two hinge shafts on the frame at the same time, coaxiality of the two shafts is difficult to be ensured, the situation that butt joint is not caused during field installation is required, the treatment of the shafts on the spot is required, the service lives of key components such as the hinge shafts, the joint bearings and the sealing are shortened, the field trimming workload is increased, the labor and material resources are consumed, and the field installation efficiency is greatly reduced. Disclosure of Invention The invention aims to provide a double-hinge combined type hinge assembly mechanism, which fundamentally solves the problems. The on-site installation efficiency and the fault tolerance of the axial deviation can be improved only by one set of hinge assembly structure, and each hinge shaft can be independently hoisted on site, so that the convenience and reliability of installation are greatly improved, the precision requirement of hinge assembly is ensured, and simultaneously, larger accumulated errors can be absorbed. The invention provides the following technical scheme for realizing the purpose that the double-hinge combined type hinge assembly mechanism comprises a frame, a cantilever crane, a hinge shaft, a first positioning component and a second positioning component, and is technically characterized in that: the hinge shaft comprises a first cylindrical surface, a second cylindrical surface, a third cylindrical surface, a first conical surface, a second conical surface and a spigot for positioning; a radial positioning spigot is arranged in front of the third cylindrical surface and the second conical surface, the diameter of the second cylindrical surface is larger than that of the first cylindrical surface, and the diameter of the first cylindrical surface is larger than that of the third cylindrical surface; The frame is connected with the arm support through two identical two hinge assemblies which are arranged in a mirror image mode, the hinge assemblies are connected with a first positioning assembly through the outer side ends of the hinge shafts and are positioned, the first positioning assembly is connected with cylindrical surfaces on the hinge shafts and used for restraining radial freedom degrees of the hinge shafts, the first positioning assembly can freely slide in the width range of the cylindrical surfaces on the hinge shafts, and axial freedom degrees are released and used for axially freely adjusting the frame and the arm support; The inner side end of the hinge shaft is connected with and positioned by a second positioning component, the second positioning component is connected with a cylindrical surface and a positioning spigot on the hinge shaft and is used for axially and radially positioning the hinge shaft, the hinge shaft and the arm support are axially and radially fixed through the second positioning component, and the hinge shaft and the frame are fixed through a first positioning component; The first positioning component comprises a first conical sleeve, a second conical sleeve, a locking component, a protective cover and a first fixing ring; The outer ring of the first conical sleeve is a cylindrical surface and is connected with the cylindrical hole surface of the frame, the inner ring is a conical surface and is connected with the conical surface of the second conical sleeve, the outer ring of the second conical sleeve is a conical surface, the inner ring is a cylindrical surf