CN2144138Y

CN2144138Y - Band spring type rail fastening unit or wooden sleeper

Info

Publication number: CN2144138Y
Application number: CN 92242510
Authority: CN
Inventors: 王守杰; 王荣和
Original assignee: CHENGDE PERMANENT WAY SECTION BEIJING RAILWAY SUB-ADMINISTRATION
Current assignee: CHENGDE PERMANENT WAY SECTION BEIJING RAILWAY SUB-ADMINISTRATION
Priority date: 1992-12-05
Filing date: 1992-12-05
Publication date: 1993-10-20
Anticipated expiration: 2002-12-05

Abstract

The utility model relates to an elastic strip type rail fastening device for laying the wooden sleeper lines. A bearing plate bar is fixed to a sleeper by hexagon screws and is penetrated through by a T type screw bolt. A gauge apron, an elastic strip and a flat washer can be sheathed on a threaded rod, and the screw cap is tightened, causing the rail to be firmly fixed on the set position.

Description

Band spring type rail fastening unit or wooden sleeper

The utility model relates to a kind of band spring type rail fastening unit that is used for wooden railroad crosstie, belongs to railway track superstructure technical field.

At present, in China's railway track superstructure, rail is withheld the device on sleeper, on concrete sleeper, extensively adopt spring secures rail to sleeper, to keep the stable and traffic safety of circuit, and at the rail joint place, switch area and girder steel open bridge floors etc. locates still to lay sleeper, and its connection generally is to realize with cut-spike or K type separated rail fastening.Use cut-spike, because of its buckle press is little, under the impact of train motoricity, loosening easily and lose the effect of withholding rail; Use K type separated rail fastening, fastener and sleeper are rigid connection, adjust relatively difficulty of gauge, in case have loosening then lose the rail effect of detaining.

The purpose of this utility model provides a kind of on the circuit of laying sleeper.Improve the sleeper band spring type rail fastening unit of rail buckle press and mill resistance.

Structure of the present utility model is shown in accompanying drawing 1 and accompanying drawing 2:

Fig. 1 is the sectional view of this device

Fig. 2 is the diagrammatic sketch of bowing of this device

Among the figure: 1-T type bolt, 2-nut, 3-plain washer, 4-nylon seat, 5-backing plate, 6-hex head screw, 7-rubber cushion, 8-spring, 9-gauge apron, 10-sleeper, 11-rail.

Backing plate (5) is to form according to the casting of national standard KT33-8 malleable cast iron, wide 180mm, long 348mm, the thick 23mm of the thick 15mm other end of one end, respectively stay 1 ladder type screw and two screw holes in the position of matching with T-shaped bolt (1) in its two ends, bottom, the shape of ladder type screw is just surely closed mutually with the shape of bolt head, spins to prevent bolt. The long 95mm of T-shaped bolt (1), diameter 24mm, the long 45mm of screw thread, T-shaped bolt head are one Three-dimensional trapezoidal, its long 44mm that goes to the bottom, wide 24mm, high 10mm, four every length of sides in limit of upper base are 24mm, consist of the trapezoidal spiral shell head with 1:0.55 Dou face with these sizes. When bolt being penetrated backing plate reserve trapezoidal screw, bolt head just is set in the screw, then successively with gauge apron (9), spring (8), plain washer (3) is enclosed within on the screw rod, has filled up simultaneously rubber cushion (7) and nylon seat (4), tightening nuts (2) has been finished the connection work with rail again. Withhold and the fixing purpose of rail for reaching, in 4 screw holes that backing plate is reserved, be screwed into hex head screw (6), rail and sleeper are firmly connect, and solved in good condition the problem of retaining rail position. The head of hex head screw (6) is the hexagonal forward type, and head height 10～14mm reduces buckle press to prevent that itself and gauge apron (9) are inconsistent. The shape of turret head and peripheral size and nut (2) are identical, and so available same spanner construction is easy to operate, improves work efficiency.

Further specify performance of the present utility model below in conjunction with accompanying drawing.

Sleeper (10) and rail (11) press construction requirement in place after, backing plate (5), rubber cushion (7) are pressed under the rail by the design attitude pad, after gauge mixes up hex head screw is screwed in the sleeper by the backing plate screw, firmly be fixed on the sleeper backing plate, simultaneously the spiral shell head of pre-packed T type bolt (1) is squeezed in the trapezoidal hole on the backing plate, lay nylon seat (4), gauge apron (9), spring (8) and plain washer (3) then successively, again nut (2) is enclosed within on the screw rod and with spanner and tightens, can satisfy the requirement that elasticity is withheld rail bar.

Claims

1, a kind ofly pass the backing plate screw with hex head screw (6) backing plate (5) is fixed on the sleeper (10), pass the trapezoidal screw of backing plate with T type bolt (1) again, put gauge apron (9), spring (8) and plain washer (3) and tightening nuts (2) are withheld the sleeper band spring type rail fastening unit of rail bar, it is characterized in that: backing plate (5) is the malleable cast iron member, wide 180mm, long 348mm, the thick 15mm of one end, the thick 23mm of the other end, lay the bottom of T type bolt (1) relevant position at its two ends and respectively stay a trapezoidal hole that matches with trapezoidal bolt head, and respectively leave two screw holes in the position that is screwed into hex head screw.

2, rail fastening unit according to claim 1 is characterized in that: the head of hex head screw (6) is the hexagonal forward type, its height of head 10～14mm.

3, rail fastening unit according to claim 1, it is characterized in that: the long 95mm of T type bolt (1), diameter 24mm, the long 45mm of screw thread, T type bolt head are that a solid is trapezoidal, its long 44mm that goes to the bottom, wide 24mm, high 10mm, four length of sides of upper base are 24mm, form a trapezoidal spiral shell head with 1:0.55 Dou face.