Railway Use Oil Damper/ISO 45001/EN 15085-2/CRCC/HTJ series oil
dampers
Railwai use oil damper :
Oil damper is an important damping component on the suspension
devices of bogies (axles) such as railway locomotives, vehicles and
urban rail transit.
The purpose of vibration reduction is achieved by hydraulic damping
force formed by stretching and compressing the reciprocating motion
of piston rod. It has good damping effect and flexible damping
effect, and is a key component to improve the stability, comfort
and safety of locomotive and vehicle running at high speed.
Our company specializes in overhauling all kinds of imported and
domestic oil dampers, including imported brands KONI, DISPEN,
SACHS, etc. And our company produces our own brand "Tie Chi" HTJ
series oil dampers.
Company qualifications:
On August 23, 2002, the locomotive acceptance office of the
transportation bureau of the Ministry of railways of China approved
our company to produce 17 items of hydraulic shock absorbers for
HTJ series locomotives. the products were accepted by the
locomotive acceptance office of the Ministry of railways in
Shanghai.
On October 15, 2009, the locomotive acceptance office of the
transportation bureau of the Ministry of railways of China approved
the expansion of our new products from 17 to 8 series.
OVERHAUL QUALIFICATION OF OIL DAMPER FOR RAILWAY PASSENGER CARS
On October 15, 2009, the locomotive acceptance office of the
transportation bureau of the Ministry of railways of the PRC
approved our company to have the qualification for inspection and
repair of KONI series, SACHS series and DISPEN series oil dampers.
INSPECTION REPORT OF THE PRODUCT QUALITY SUPERVISION AND INSPECTION
CENTER OF THE MINISTRY OF RAILWAYS
From 2007 to 2019, 26 kinds of new, vertical and horizontal oil
dampers produced by our company and repaired by our company, such
as KONI, SACHS and DISPEN, passed the inspection by the Product
Quality Supervision and Inspection Center of the Ministry of
Railways (China Railway Inspection and Certification Center).
PATENT CERTIFICATE
Our company has obtained 24 national utility model
patents and invention patents for oil dampers.
PERFORMANCE OVERVIEW
Newly-built
General Situation of Loading Operation of HTJ Series Oil Damper in
Recent Years
The HTJ series oil dampers produced by our company have been
installed in locomotives and vehicles of Dalian Locomotive Works,
Beijing Erqi Locomotive and Rolling Stock Works, Qishuyan
Locomotive Works, Luoyang Locomotive Works, Datong Locomotive
Works, Changzhou Jinchuang, Shanghai, Xi 'an, Kunming, Shenyang,
Nanning, Nanchang, Guangzhou, Wuhan, Urumqi Railway Administration,
etc.
At the same time, our HTJ series products are also exported to
Thailand, Vietnam, Argentina, Congo (DRC), Tanzania, Zambia,
Pakistan, Korea, Kenya, Hong Kong and other countries and regions.
From 2012 to 2019, our company produced a total of 25,878 HTJ
series oil dampers, of which 9,942 were exported.
PERFORMANCE OVERVIEW
Overhaul
General Situation of Loading Operation of HTJ Series Oil Damper in
Recent Years
Our company has overhauled the imported and domestic oil dampers
with specifications and models such as CRH1, CRH6A, HXD1, HXD2,
HXD3, HXD3, HXN5, DF and SS series for Guangzhou EMU Depot, Dalian
Locomotive and Rolling Stock Works, Taiyuan, Guangzhou Railway
Rolling Stock Works, Jinan, Taiyuan, Nanchang, Shenyang, Xi 'an,
Urumqi, Guangzhou, Zhengzhou, Shanghai and Wuhan, as well as the
locomotive depot and depot under the Railway Administration.
At the same time, our company also carries out in-site specialized
cooperative maintenance in Guangzhou EMU Depot, Tianjin High-power
Locomotive Maintenance Base, Shanghai Locomotive Maintenance Depot,
Guangzhou Electric Locomotive Maintenance Depot, Urumqi Depot and
Wuchang Depot, and has started to repair the oil dampers in
Shanghai, Nanjing, Xi 'an, Chengdu, Changchun, Wuhan, Zhengzhou and
other cities. From 2012 to 2019, our company overhauled a total of
364553 oil dampers of various types, including 143757 of KONI
series, 72663 of SACHS series and 102109 of DISPEN series.
Our company has more than 180 types of oil shock absorbers, which
can also be designed and produced independently according to
requirements.
Oil dampers used in railways are mainly divided into the following
six types:
(1) Axle box damper(Primary vertical shock absorber)
(2) Secondary vertical shock absorber
(3) Secondary transverse damper
(4) Anti-hunting shock absorber
(5) Longitudinal and transverse shock absorbers at vehicle body
ends
