GB/T 25024-2019 English PDF (GBT25024-2019)

This Standard stipulates the terms, definitions, main structure, basic requirements, technical requirements, inspection methods, inspection rules, marking, transportation and storage of bogie for standard gauge railway wagon. This Standard is applicable to bogie for newly built standard gauge railway wagon, whose highest running speed is less than, or equals to 120 km/h.

GB/T 25024-2019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 45.060.01
S 36
Replacing GB/T 25024-2010
Bogie for Rolling Stock - Bogie for Railway Wagon
ISSUED ON: MAY 10, 2019
IMPLEMENTED ON: DECEMBER 1, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative References ... 5
3 Terms and Definitions ... 7
4 Main Structure ... 9
4.1 Frame-brace Bogie ... 9
4.2 Swing Bogie ... 9
4.3 Sub-frame Radial Bogie ... 9
4.4 Frame Bogie ... 9
5 Basic Requirements ... 10
6 Technical Requirements ... 11
6.1 Material Requirements ... 11
6.2 Manufacturing Requirements ... 12
6.3 Coating Requirements ... 13
6.4 Assembly Requirements ... 14
7 Inspection Methods ... 15
7.1 Inspection of Limitation Bounds ... 15
7.2 Strength Test ... 15
7.3 Dynamic Test ... 16
8 Inspection Rules ... 16
8.1 Inspection Classification ... 16
8.2 Exit-factory Inspection ... 16
8.3 Type Inspection ... 16
9 Marking, Transportation and Storage ... 17
Bogie for Rolling Stock - Bogie for Railway Wagon
1 Scope
This Standard stipulates the terms, definitions, main structure, basic requirements, technical requirements, inspection methods, inspection rules, marking, transportation and storage of bogie for standard gauge railway wagon.
This Standard is applicable to bogie for newly built standard gauge railway wagon, whose highest running speed is less than, or equals to 120 km/h.
2 Normative References
The following documents are indispensable to the application of this document. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB 146.1 Rolling Stock Gauge for Standard Gauge Railways
GB/T 699 Quality Carbon Structural Steels
GB/T 700 Carbon Structural Steels
GB/T 714 Structural Steel for Bridge
GB/T 1184-1996 Geometrical Tolerancing - Geometrical Tolerance for Features without Individual Tolerance Indications
GB/T 1222 Spring Steels
GB/T 1591 High Strength Low Alloy Structural Steels
GB/T 1804-2000 General Tolerances - Tolerances for Linear and Angular
Dimensions without Individual Tolerance Indications
GB/T 3077 Alloy Structure Steels
GB/T 3278 Hot-rolled Carbon Tool Steel Sheets and Plates
GB/T 3280 Cold Rolled Stainless Steel Plate, Sheet and Strip
GB/T 3672.1-2002 Rubber - Tolerances of Products - Part 1: Dimensional
Tolerances
TB/T 1979 Atmospheric Corrosion Resisting Steel for Railway Rolling Stock TB/T 2211 Steel Helical Spring of Suspension Mechanism for Rolling Stock TB/T 2235 Rolling Bearing in the Railway Passenger Car and Wagon
TB/T 2403 Brake Shoes for Freight Rolling Stock of Railways
TB/T 2429 Technical Condition of Foundation Brake Gear Used in Railway Truck Bogie
TB/T 2813 Friction Damper Wedge for Freight Car
TB/T 2817 Technical Specification of Wrought Steel Solid Wheel for Railway Freight Car
TB/T 2843 General Technical Requirement for Rolling Stock Rubber to Metal Parts TB/T 2911 General Technical Specification of Riveting Process for Railway Vehicle TB/T 2942 General Technical Specifications of Steel Castings for Rolling Stock TB/T 2944 Carbon Steel Forgings for Railway
TB/T 2945 Technical Specification for LZ50 Steel Shaft and Steel Billet for Railway Vehicle
TB/T 3012 Specification of Cast Steel Bolster and Side Frame for Railway Freight Car
TB/T 3014 Alloy Steel Forgings for Railway
TB/T 3225 Cross Bar Composition for Railway Freight Car
TB/T 3267 Adapter on Railway Freight Car
TB/T 3269 Elastic Side Bearings for Railway Freight Wagons
TB/T 3270 Center Wear Plate of Railway Freight Wagons
3 Terms and Definitions
What is defined in GB/T 4549.2-2004, and the following terms and definitions are applicable to this document.
3.1 Frame-brace Bogie
Frame-brace bogie refers to three-piece cast steel bogie, which implements elastic Frame bogie refers to a running gear, which generally sets up components like wheelsets axle box device, suspension damping device and foundation brake gear; adopts bogie frame as the installation foundation of various components; bears vehicle body and loading weight; rotates in relative to the vehicle body.
NOTE: definition 2.17 in GB/T 4549.2-2004 is modified.
3.10 Bogie Frame
Bogie frame refers to a basic bearing structure, which is between the primary and secondary suspension device, and implements the transmission of force from vehicle body to wheel and axle.
NOTE: definition 3.1 in GB/T 4549.2-2004 is modified.
4 Main Structure
4.1 Frame-brace Bogie
Frame-brace bogie belongs to three-piece cast steel bogie. It is mainly constituted of adapter, elastic positioning member, wheel and axle, side frame, central spring suspension device, swing bolster, basic braking device, frame-brace device and elastic side bearing, etc. In accordance with difference in the location of frame-brace device and swing bolster, frame-brace bogie can be divided into lower frame-brace bogie and central frame-brace bogie.
4.2 Swing Bogie
Swing bogie belongs to three-piece cast steel bogie. It is mainly constituted of adapter, pedestal rocker seat (primary elastic swing device), wheel and axle, side frame, central spring suspension device, swing bolster, spring plank, rocker seat, rocker seat bearing, foundation brake gear and elastic side bearing, etc.
4.3 Sub-frame Radial Bogie
Sub-frame radial bogie refers to three-piece self-guided radial bogie. It is mainly constituted of wheel and axle, side frame, central spring suspension device, swing bolster, foundation brake gear, primary rubber-metal pad, wheelsets radial device and elastic side bearing, etc.
4.4 Frame Bogie
Frame bogie is a bogie, with the frame of an integral structure, which is brought together through rigid connection. It is mainly constituted of bogie frame, wheelsets axle box (axle box suspension device), foundation brake gear, traction device and elastic side bearing, etc. Generally speaking, bogie frame is integrally welded through steel plates.
g) The clearance of the inner and outer ring round spring in the radial direction should not be less than 2.5 mm; the minimum shall not be less than 1.5 mm; h) In terms of bogie which has a damping device, spring’s deflection margin coefficient shall be more than, or equals to 0.7. In terms of bogie which does not have a damping device, spring’s deflection margin coefficient shall be more than, or equals to 0.9.
6 Technical Requirements
6.1 Material Requirements
6.1.1 Quality carbon structural steels shall comply with the stipulations in GB/T 699. 6.1.2 Carbon structural steels shall comply with the stipulations in GB/T 700. 6.1.3 Alloy structural steels shall comply with the stipulations in GB/T 3077 and relevant standards.
6.1.4 Low-alloy high-strength structural steels shall comply with the stipulations in GB/T 1591.
6.1.5 Structural steel for bridge shall comply with the stipulations in GB/T 714. 6.1.6 Atmospheric corrosion resisting steel shall comply with the stipulations in TB/T 1979.
6.1.7 Spring steels shall comply with the stipulations in GB/T 1222 and TB/T 2211. 6.1.8 Cold rolled stainless steel plate shall comply with the stipulations in GB/T 3280. 6.1.9 Carbon tool steel plate shall comply with the stipulations in GB/T 3278. 6.1.10 Seamless steel tubes for structural purposes shall comply with the stipulations in GB/T 8162.
6.1.11 Carbon steel castings for general engineering purpose shall comply with the stipulations in GB/T 11352.
6.1.12 Non-metallic materials shall comply with the stipulations of relevant standards. 6.1.13 The mechanical property of steel for bogie frame shall comply with the follows: a) Impact absorption energy (KV2) ( 40 °C) shall be more than or equals to 27 J; b) Elongation at break (A) shall be more than or equals to 19%.
standards.
6.2.16 Wheelsets assembly shall comply with the stipulations in TB/T 1718.2. 6.2.17 Bearing pressing shall comply with the stipulations in product drawings and relevant standards.
6.2.18 Foundation brake gear shall comply with the stipulations in TB/T 2429. 6.2.19 Brake shoes shall comply with the stipulations in TB/T 2403 and relevant drawings.
6.2.20 Assembled brake beam shall comply with the stipulations in TB/T 1978. 6.2.21 Friction damper wedge shall comply with the stipulations in TB/T 2813. 6.2.22 Cylindrical helical spring shall comply with the stipulations in TB/T 2211. 6.2.23 Adapter and elastic positioning member shall comply with the stipulations in TB/T 3267 and relevant standards.
6.2.24 Plane lower center plate shall comply with the stipulations in TB/T 46; spherical center plate shall comply with the stipulations in product drawings.
6.2.25 Center wear plate shall comply with the stipulations in TB/T 3270. 6.2.26 Elastic side bearings shall comply with the stipulations in TB/T 3269 and relevant standards.
6.2.27 Cross bar composition shall comply with the stipulations in TB/T 3225 and relevant standards.
6.2.28 Components like side frame column wear plate, axle box rubber spring, axle box longitudinal elastic cushion, axial rubber blanket, spring plank, rocker seat, pedestal rocker seat, rocker seat bearing, rubber-metal pad, wheelsets radial device, brake pin sleeve, brake shoe key and brake shoe ring shall comply with the stipulations in relevant stipulations.
6.3 Coating Requirements
6.3.1 Before coating, impurities (such as: oil stain, rust and electric welding splash) on the surface of various components shall be eliminated.
6.3.2 Non-working outer surface of bogie frame shall paint anti-corrosive primer and top-coat, or, one coat for bottom and surface. The surface of forgings, structural steels, steel plate elements and profiled parts (except from friction pair parts) shall paint anti- corrosive primer and top-coat, or, one coat for bottom and surface. The internal and external surface of steel castings, center pins and wheel web, the axle body part hole). Other parts shall not smear lubricating grease. When there are special requirements, implement product drawings.
6.4.11 After brake shoe key is assembled, brake shoe ring shall be installed. 6.4.12 The effect of foundation brake gear in braking and remission shall be flexible. The allowance of brake beam’s safety chain shall satisfy the requirements of braking and remission in the application on vehicles.
6.4.13 The assembly of integrated brake gear shall comply with the stipulations in relevant standards.
6.4.14 The direction of side bearing assembly: in terms of the same bogie: opposite direction; in terms of the same vehicle: same side, same direction.
6.4.15 In the assembly of center wear plate, impurities in the lower center plate shall be eliminated.
6.4.16 During the assembly, no electric current is allowed to pass through rolling bearing.
7 Inspection Methods
7.1 Inspection of Limitation Bounds
Inspection of limitation bounds of bogie shall comply with the stipulations in GB/T 16904.1.
7.2 Strength Test
7.2.1 Strength test and stiffness test of key components of bogie shall comply with the stipulations in TB/T 1335 and relevant standards.
7.2.2 Static load and fatigue test of swing bolster and side frame shall comply with the stipulations in TB/T 1959 and relevant standards.
7.2.3 Static load and fatigue test of steel spring shall comply with the stipulations in TB/T 2211.
7.2.4 Static load and fatigue test of combined-type brake beam shall comply with the stipulations in TB/T 1978.
7.2.5 Stiffness test and fatigue test of elastic positioning members shall comply with the stipulations in TB/T 3267 and relevant standards.
7.2.6 Stiffness test and fatigue test of elastic side bearing shall comply with the stipulations in TB/T 3269 and relevant standards.