Guangxi Liugong Machinery Co.

Liuzhou, China

Guangxi Liugong Machinery Co.

Liuzhou, China
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Patent
Guangxi LiuGong Machinery Co. | Date: 2017-03-22

A lifting arrangement for a construction machine is provided which includes a main arm (3) which is provided with a pivot connector (4). The pivot connector (4) is pivotably supported on a main arm support means (6). The main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to a frame arrangement of a construction machine to which the lifting arrangement can be applied. Based on a control of a main arm actuating element (11) and an auxiliary actuating element (21), a path of an equipment connector (5) upon moving said main arm (3) between a lowered position and a lifted position can be achieved which follows a predetermined path.


Patent
Guangxi LiuGong Machinery Co. | Date: 2017-08-02

Disclosed is a self-level mechanism for controlling a tilting movement of an equipment (15) mounted to an equipment connector (5) of a main arm (3) of a lifting arrangement of a construction machine, preferably a wheel loader (1), upon pivoting said main arm (3). The self-level mechanism is configured to at least partially compensate any tilting movement of the equipment (15).


Wang J.,Jilin University | Wang N.,Jilin University | Wang Z.,Jilin University | Zhang Y.,Jilin University | Liu L.,Guangxi Liugong Machinery Co.
Journal of Terramechanics | Year: 2012

The present paper aims to provide a new approach in estimating the minimum sample size of the transmission load of a wheel loader under multiple operating conditions based on multi-criteria decision-making (MCMD) technology. Extreme load values (ELVs) and load cycles under multi-operating conditions are carefully considered, and the mean and the standard deviation of ELVs and the fatigue life are the three criteria selected for estimating the sample size. Using MCMD, the weight values of the three criteria are determined, where the eigenvector and entropy information methods, together with linear combination weighting, are adopted. The optimal minimum sample size (MSS) is estimated based on the feasible values determined by the three criteria and their corresponding weight values. As an example, the load time history of the semi-axle of a wheel loader is analyzed in detail. As the ELVs and load cycles are studied, the optimal MSS can properly represent the load characteristics. The objectivity and validity of the optimal MSS are assured using the combination of the eigenvector and entropy information methods.


Chen Y.,Dalian University of Technology | Chen Y.,Guangxi Liugong Machinery Co. | Teng H.,Dalian University of Technology
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | Year: 2012

Aiming to the coupling analysis for heterogeneous module combination design, a comprehensive dependency matrix (CDM) that can not only present the direct dependency but also the indirect dependency simultaneously is proposed. A coupling analysis method based on evolutionary strategy is presented, for which the fitness function and algorithm operator used in coupling analysis are also given. The coupling analysis based on CDM will contribute to getting the inside of the dependency between the design functions and variables. The change propagation analysis of the combination design that is integrated in the construction progress of CDM is also performed. The analysis result can descript the coupling relationship between the heterogeneous module more comprehensively and clearly, and provide a effective and efficient method for the coupling analysis of heterogeneous module. © 2012 Journal of Mechanical Engineering.


Li R.,Guangxi Liugong Machinery Co. | Liang T.,Guangxi Liugong Machinery Co. | Chen X.,Guangxi Liugong Machinery Co.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2016

In order to reduce the content of retained austenite and improve martensite structure in surface layer of 18NiCrMo5 steel internal gear ring, the optimal carburizing and quenching process were developed. Because the internal gear ring is a large thin wall parts, its distortion during carburizing and quenching is large, which seriously hinders its batch production, so a high pressure quenching tool is adopted, the distortion and microstructure are improved. © 2016, Editorial Office of "Jinshu Rechuli". All right reserved.


Patent
Guangxi LiuGong Machinery Co. | Date: 2016-08-03

A lifting arrangement for a construction machine is provided which includes a main arm (3) which is provided with a pivot connector (4). The pivot connector (4) is pivotably supported on a main arm support means (6). The main arm support means (6) is moveable in a direction which includes at least a component in the front-rear direction with respect to a frame arrangement of a construction machine to which the lifting arrangement can be applied. Based on a control of a main arm actuating element (11) and an auxiliary actuating element (21), a path of an equipment connector (5) upon moving said main arm (3) between a lowered position and a lifted position can be achieved which follows a predetermined path.


Patent
Guangxi LiuGong Machinery Co. | Date: 2016-08-03

A lifting arrangement for a construction machine comprises a main arm (3) which is provided with a pivot connector (4) at a proximate end thereof and an equipment connector (5) at a distal end thereof, a main arm support means (6) for pivotably supporting said pivot connector (4) of said main arm (3), wherein said main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement. Further a guiding means (7) is provided which is engaged to said main arm (3) at a guided portion (10) of said main arm (3) positioned between said pivot connector (4) and said equipment connector (5).


Patent
Guangxi LiuGong Machinery Co. | Date: 2016-11-02

An operators cab arrangement for a construction machine (100) is proposed which comprises side wall elements, a front wall element, a rear wall element and a roof element (4). At least one of said side wall elements is closable by a door element (1) which is pivotably mounted to said arrangement with a pivot axis being substantially vertical with respect to said construction machine (100). Said door element (1) is inclined towards a central axis of said construction machine when closed.


Patent
Guangxi Liugong Machinery Co. | Date: 2015-04-24

A lifting arrangement for a construction machine comprises a main arm (3) which is provided with a pivot connector (4) at a proximate end thereof and an equipment connector (5) at a distal end thereof, a main arm support means (6) for pivotably supporting said pivot connector (4) of said main arm (3), wherein said main arm support means (6) is movable in a direction which includes at least a component in the front-rear direction with respect to said frame arrangement. Further a guiding means (7) is provided which is engaged to said main arm (3) at a guided portion (10) of said main arm (3) positioned between said pivot connector (4) and said equipment connector (5).


Patent
Guangxi Liugong Machinery Co. | Date: 2015-04-24

A lifting arrangement for a construction machine is provided which includes a main arm (3) which is provided with a pivot connector (4). The pivot connector (4) is pivotably supported on a main arm support means (6). The main arm support means (6) is moveable in a direction which includes at least a component in the front-rear direction with respect to a frame arrangement of a construction machine to which the lifting arrangement can be applied. Based on a control of a main arm actuating element (11) and an auxiliary actuating element (21), a path of an equipment connector (5) upon moving said main arm (3) between a lowered position and a lifted position can be achieved which follows a predetermined path.

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