Title:
LUBRICATING GREASE DELIVERY SYSTEM OF COAL MINE RAIL TRANSPORTATION VEHICLE
Document Type and Number:
WIPO Patent Application WO/2014/106392
Kind Code:
A1
Abstract:
Disclosed is a lubricating grease delivery system of a coal mine rail transportation vehicle, comprising an oil reservoir (1) and an oil pump (2). An outlet pipeline of the oil pump (2) is divided into two branches via a T joint, wherein an electromagnetic reversing valve (3), a manual three-position four-way reversing valve (5) and an energy accumulator (4) are connected in sequence on one branch, inlet and outlet pipelines of the manual three-position four-way reversing valve (5) are connected with a composite hydraulic cylinder a, and the front part of the composite hydraulic cylinder a is connected with a grease reservoir (6);a first one-way speed control valve (9) and a three-position four-way electromagnetic reversing valve (10) are arranged in sequence on the other branch, and inlet and outlet pipelines of the three-position four-way reversing valve (10) are connected with a composite hydraulic cylinder b; a lubricating grease outlet of the composite hydraulic cylinder a is connected with a one-way valve bridge (8) through a pipeline, and pipelines on two sides of the one-way valve bridge (8) are respectively connected to a lubricating grease inlet and a lubricating grease outlet of the composite hydraulic cylinder b; and two limiters for limiting the travel of a piston rod are arranged at the front part of the piston rod of the composite hydraulic cylinder b. The lubricating grease delivery system completes the delivery of lubricating grease by means of alternating operations of the two composite hydraulic cylinders, and has the characteristics of small size, high pressure, high flow rate and stable operation.
Inventors:
CHENG YANHAI (CN)
ZHU ZHENCAI (CN)
WANG NA (CN)
HUANG RIHENG (CN)
CHEN GUOAN (CN)
HAN ZHENDUO (CN)
ZHU ZHENCAI (CN)
WANG NA (CN)
HUANG RIHENG (CN)
CHEN GUOAN (CN)
HAN ZHENDUO (CN)
Application Number:
PCT/CN2013/083196
Publication Date:
July 10, 2014
Filing Date:
September 10, 2013
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
F16N7/38; F16N11/10
Domestic Patent References:
| WO2010017593A1 | 2010-02-18 |
Foreign References:
| CN103047529A | 2013-04-17 | |||
| CN103047528A | 2013-04-17 | |||
| CN202580555U | 2012-12-05 | |||
| CN201954235U | 2011-08-31 | |||
| JP2002004335A | 2002-01-09 |
Attorney, Agent or Firm:
NANJING RUIHONG PATENT AND TRADEMARK OFFICE (GENERAL PARTNERSHIP) (CN)
南京瑞弘专利商标事务所（普通合伙） (CN)
南京瑞弘专利商标事务所（普通合伙） (CN)
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