CN110725165A - Trapezoidal splicing bracket-added splicing type steel rail joint - Google Patents
Trapezoidal splicing bracket-added splicing type steel rail joint Download PDFInfo
- Publication number
- CN110725165A CN110725165A CN201910240135.8A CN201910240135A CN110725165A CN 110725165 A CN110725165 A CN 110725165A CN 201910240135 A CN201910240135 A CN 201910240135A CN 110725165 A CN110725165 A CN 110725165A
- Authority
- CN
- China
- Prior art keywords
- wheel
- joint
- bracket
- rail
- splicing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B11/00—Rail joints
- E01B11/02—Dismountable rail joints
- E01B11/20—Dismountable rail joints with gap-bridging
- E01B11/22—Dismountable rail joints with gap-bridging by parts of the rails
- E01B11/24—Dismountable rail joints with gap-bridging by parts of the rails with oblique or overlapping rail ends
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
Compound concatenation formula connects, and compound concatenation formula connects makes in pairs and rigid coupling in rail tip in pairs, and compound concatenation formula connects and constitutes trapezoidal concatenation by right trapezoid concatenation and support groove concatenation, trapezoidal concatenation: cutting a trapezoidal trace in the middle of the jointed rail by vertical line cutting to form a right angle trapezoidal convex feed wheel Joint (JT)1) And a right-angled trapezoidal convex wheel-facing Joint (JT)2) For making the rail gap become a hidden rail gap; bracket splicing: the bracket (TC) is a splint type channel steel, two side plates of the groove are splint (JB), the size and shape of the groove are just matched with the joint, the head-on wheel joint is sleeved into the bracket and welded, and meanwhile, the wheel-feeding joint is sleeved into the bracket and is butted with the head-on wheel joint so as to eliminate steps and break angles.
Description
The technical field is as follows: rail traffic, rail joints.
Background art:
rail joints are a critical part in the construction of rails. The rail joint in the ordinary speed railway has defects such as rail gaps, steps, break angles and the like (hereinafter collectively referred to as "rail gap defects"), which are main causes of damages such as wheel-rail impact, wheel-rail damage, irregularity and the like. The welded steel rail joint is adopted in the high-speed railway to form a seamless rail, although the defect of rail joints is eliminated, the old problem that the expansion caused by heat and the contraction caused by cold of the steel rail are difficult to deal with is returned, and the current coping scheme is to adopt a temperature stress type seamless rail and a diffusion temperature stress type seamless rail.
The temperature stress type seamless track has a simple structure, is convenient to lay and maintain, is widely applied, but is only suitable for areas with small temperature difference all the year round, otherwise, accidents such as rail expansion, runway and rail breakage can occur due to too large temperature force of the steel rail, so that the high-speed rail in the area with large temperature difference can only adopt the temperature stress type seamless track, the temperature stress in the steel rail is required to be released twice every year according to the local rail temperature condition, the operation and maintenance cost is very high, and the application difficulty is high.
If there is a rail that combines the advantages of a seamless rail and a slotted rail, then a "seamless-like rail" will be formed, which has two major advantages: (1) because the unevenness, wheel-rail impact and running resistance of the track can be reduced like a seamless track, the method is suitable for carrying out speed upgrading and reconstruction on the ordinary speed railway; (2) because the method is favorable for coping with the expansion caused by heat and contraction caused by cold of the steel rail like a seamed rail, the method is suitable for building the high-speed railway in a large temperature difference area without performing stress relief twice a year. The composite spliced steel rail joint is a composite spliced joint for short, and aims to form hidden rail joints, zero steps and zero break angles on the premise of keeping rail joints and eliminate damage caused by the rail joints.
The invention content is as follows:
a ladder-shaped splicing bracket-added splicing type steel rail joint is called as a composite splicing type joint for short, the composite splicing type joint is manufactured in pairs and fixedly connected to the end part of a steel rail in pairs, the composite splicing type joint is formed by pan-ladder-shaped splicing and bracket splicing, the bracket splicing is that a head-on wheel joint is sleeved in a bracket and welded, and meanwhile, a wheel-sending joint is sleeved in the bracket; and the step-shaped splicing is that the wheel feeding joint and the wheel receiving joint are sleeved into the bracket and then are mutually butted, and after the butting, the rail gap is calculated according to the rail temperature, and the rail gap is reserved.
For clarity of description, certain definitions and conventions are first made
● parts of the same type are designated by the same reference numerals with different numerical indices, such as: feed wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) Number (P)JT) generally refers to the various stitching embossments, and the numerical subscript indicates which particular stitching embossment is.
● the long I-steel part of the rail is called the main rail (ZGG);
● Rail Joint-a small section of special rail fixed to the end of rail, specially used to improve the rail gap defect, called rail joint, Joint (JT) for short;
● Joint rail-a section of special rail for manufacturing joint, the main rail cross section is "I" shaped, the upper cross rail head, the vertical rib is rail waist, the lower cross rail is rail bottom, the shape of the joint rail cross section is "I" shaped the same as the main rail cross section, the difference is that the vertical rib of the joint rail of the invention is thicker than the main rail waist, it is called "joint waist", the joint rail leaves the joint waist and rail bottom after removing the rail head, the cross section is "inverse T" shaped, defined as "joint waist bottom cross section".
● vertical line cutting, the cutting line is vertical to the rail surface, so the cutting plane is vertical to the rail surface, the default is zero slot, the vertical line cutting is for the convenience of explanation to obtain the shape of the splicing bulge, and is not the only processing method, and the processing method of the splicing bulge comprises the existing machining method.
● generalizing trapezoids-including trapezoids and composite trapezoids that are a composite of multiple trapezoids.
● trapezoidal bottom side — convex splicing convex trapezoidal bottom side is virtual and is indicated by a dotted line (trapezoidal bottom TXD) in FIG. 1, and The (TXD) is perpendicular to the edge line of the steel rail, and the subsequent trapezoidal bottom side is the same and will not be described.
● splicing convex, butt joint and complementation, wherein the joint steel rail is cut vertically, the running direction of the cutting seam is in a trapezoid shape, the part where the cutting seam runs is called splicing convex, one section of joint steel rail is cut into a delivery wheel joint containing the delivery wheel splicing convex and an oncoming wheel joint containing the oncoming wheel splicing convex, after the delivery wheel splicing convex and the oncoming wheel splicing convex are butt jointed, the delivery wheel joint and the oncoming wheel joint can be restored into a complete joint, the splicing convex butt joint which can be restored into the complete joint is called complementation, and the delivery wheel splicing convex and the oncoming wheel splicing convex are called the complementary splicing convex.
● an expansion joint is reserved at the junction of the wheel-feeding joint and the wheel-facing joint, and is called a rail Gap (GF);
● at the joint, the object that is pressed first by the wheel is called "wheel feed XX" (e.g.: wheel feed Joint (JT)1) Wheel-feeding rail Gap (GF)1) Bracket of wheel (TC)1) ); the object pressed by the wheel is called "wheel-facing XX" (e.g.: wheel-facing Joint (JT)2) Wheel-facing rail Gap (GF)2) Bracket of wheel (TC)2))。
● the top surface of the rail is referred to as the rail plane (GGM) when viewed from above the track, and the top surface of the joint is the joint plane and is also referred to as the rail plane, as is the rail plane. The wheels roll on the rail surface, and the arrow indicates the running direction of the train.
Since some parts need to be described from different angles, there are multiple numbers of these parts, such as brackets (TC), cleats (JB), and Detents (DWC), that point to the same part.
● general term for solid connection, welding, casting and rolling, or screw and splint connection.
Trapezoidal (including compound trapezoidal) mosaic structure: cutting a trapezoidal trace in the middle of a jointed rail using a vertical line cut (fig. 1) to form a wheel Joint (JT)1) And a head-on wheel Joint (JT)2) Wheel feeding Joint (JT)1) With a feed wheel splicing boss (PJT)1) And a feed wheel splicing Pocket (PJA)1) Head-on wheel Joint (JT)2) With a meeting wheel splicing boss (PJT)2) And a front wheel splicing recess (PJA)2) If the groove is zero or micro groove, the feed wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) Must be complementary, i.e. feed wheel splicing Projections (PJT)1) Just fills up the splicing concave (PJA) of the head-on wheel2) Front wheel splicing convex (PJT)2) Just fills up the splicing concave (PJA) of the feeding wheel1) And the joint waist needs to be cut into two pieces, so that the thickness of the joint waist is larger than that of the rail waist.
Trapezoidal concatenation theory of operation: a pair of wheel feeding joints and wheel facing joints form a complete joint (figure 4) after splicing, and then a rail gap is reserved according to the requirements of thermal expansion and cold contraction, including a wheel feeding railSuture (GF)1) And wheel-facing rail Gap (GF)2) When the wheel is pressed against the wheel-feeding rail Gap (GF)1) While the upper part is also pressed to a feed wheel splicing bulge (PJT)1) So that the wheel is sent to the wheel splicing convex (PJT)1) Bearing in the wheel rail Gap (GF)1) The upper part of the wheel smoothly rolls over, and the wheel can not feel the wheel feeding rail Gap (GF)1) Presence of (a); similarly, when the wheel presses against the rail Gap (GF)2) Upper time is met wheel splicing convex (PJT)2) Bearing, in the wheel-facing rail Gap (GF)2) The wheel can roll smoothly and the wheel can not feel the rail Gap (GF)2) Is present. I.e. two rail Gaps (GF)1And GF2) The wheel is hidden by the corresponding splicing convex, and the wheel can not feel the existence of the rail gap, so the rail gap is defined as a hidden rail gap.
Bracket splicing structure: the bracket (TC) is a splint type channel steel (figure 3.2), two side plates of the groove are the splint (JB), the bottom plate of the groove and the two splint are cast (including machined) into a whole to form a splint type groove, the cross section of the groove is the cross section of the waist bottom of the joint, the groove is defined as a positioning groove (DWC), the cross section of the positioning groove is equal to the cross section of the waist bottom of the joint of the trapezoid joint, and the positioning groove just sleeves the joint waist and the rail bottom of the two trapezoid joints of the feed wheel and the head wheel (figure 4), so that the two complementary trapezoid joints are butted and positioned in the groove, and the upper, lower, left and right staggered teeth between the two trapezoid joints are eliminated; head-on wheel Joint (JT)2) The bracket is sleeved into the head-on wheel end of the positioning groove and then welded with the bracket into a whole (figure 3.3); wheel feeding Joint (JT)1) Is just sleeved in a positioning groove (DWC) at the end of a bracket sending wheel to form zero clearance and can slide, namely, sliding fit for short, and a screw passes through a screw hole (LK)1And LK2) The clamping plate can clamp the joint of the feeding wheel, and the screw hole (LK) of the joint of the feeding wheel1) Is a long hole to provide a sliding space when expanding with heat and contracting with cold;
the working principle of eliminating steps and break angles by splicing the brackets (TC) is as follows: the transmission relationship of the wheel-rail force is as follows (see fig. 5): load → wheel feed Joint (JT)1) → bracket (TC) → wheel-engaging Joint (JT)2) (ii) a In detail, when the wheel presses against the wheel Joint (JT)1) When in use, the bracket is synchronously pressed(TC) because the bracket (TC) is connected with the head-on wheel Joint (JT)2) Welding as a whole, so an important result is obtained: the wheel only needs to press the wheel feeding Joint (JT)1) That is to say presses the wheel-facing Joint (JT)2) Make the wheel-facing Joint (JT)2) And feeding wheel Joint (JT)1) Synchronously pressed and sunk, thereby realizing the joint of the head-on wheel (JT)2) Relative to the feed wheel Joint (JT)1) Is a zero step. As for the break angle, it is a by-product of the step, and zero step is necessarily zero break angle.
Examples
Example 1: the ladder-shaped splicing and bracket-adding splicing form a composite splicing type joint, the composite splicing type joints are manufactured in pairs and fixedly connected to the end part of a steel rail in pairs, the bracket splicing is realized by sleeving a head-on wheel joint into a bracket and welding, and meanwhile, a wheel-sending joint is sleeved into the bracket; and the step-shaped splicing is that the wheel feeding joint and the wheel receiving joint are sleeved into the bracket and then are mutually butted, and after the butting, the rail gap is calculated according to the rail temperature, and the rail gap is reserved.
Example 2: right trapezoid splicing convex (fig. 1-4)
Cutting a Z-shaped trapezoidal track (figure 1) at the middle part of the joint steel rail by adopting vertical line cutting, and cutting the joint steel rail into a delivery wheel Joint (JT)1) And head wheel Joint (JT)2) At the feed wheel Joint (JT)1) The rail gap end forms a right-angle trapezoidal wheel-feeding splicing bulge (PJT)1) And a right trapezoid feeding wheel splicing concave (PJA)1) Delivery wheel splicing convex (PJT)1) The shape of the rail joint is like a right trapezoid cross section of a dam, the right-angle side of the rail joint and the side of the joint are the same side, the top side corresponding to the rail joint is the top side of the trapezoid, the top side is the short side of the trapezoid, the 'trapezoid bottom (TXD)' of the right trapezoid is the long side and is a virtual side, and the shape is indicated by a dotted line in figure 1; in a similar manner, at the head-on wheel Joint (JT)2) The rail gap end forms a right-angle trapezoidal head-on wheel splicing bulge (PJT)2) And a right trapezoid head wheel splicing concave (PJA)2) Delivery wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) Is a pair of complementary right-angle ladder-shaped splicing projections, a feed wheel splicing Projection (PJT)1) Just fills up the splicing concave (PJA) of the head-on wheel2) Front wheel splicing convex (PJT)2) Just fills up the splicing concave of the feeding wheel(PJA1) And butt-jointed to form a complete joint.
Example 3: right triangle splicing convex (fig. 8.1)
The right angle trapezoidal shaped stitching lug of embodiment 2 is further characterized by: meeting wheel splicing convex (PJT)2) Convex splicing with feed wheel (PJT)1) The length of the top side of the connecting piece is equal to zero, and the length of the virtual bottom side (TXD) is equal to the width of the joint, namely the right-angled triangle splicing bulge is formed.
Example 4: rectangle splicing convex (figure 8.2)
The right angle trapezoidal shaped stitching lug of embodiment 2 is further characterized by: the top side of the right trapezoid is equal to the bottom side, and the right trapezoid splicing projection becomes the rectangular splicing projection (fig. 8.2).
Example 5: composite trapezia splicing convex (figure 9.1-figure 9.3)
According to the principle of the splicing convex, the splicing convex structure is further characterized in that: compound trapezoidal concatenation is protruding, that is, the protruding shape of concatenation comprises a plurality of trapezoids, and is countless, includes: schematic diagram of male and female mating (fig. 9.1); splicing in an inverted triangular concave-convex shape (fig. 9.2); trident concavo-convex stitching (fig. 9.3).
Example 6: single direction running bracket (fig. 3.3-fig. 6)
For the compound line, the train runs in one direction on a track, the wheel-sending joint is always the wheel-sending joint, the end surface of the bracket (TC) has no special requirement, a flat end surface can be adopted, namely, the flat end surface is formed by cutting in the direction vertical to the length direction of the bracket, the bracket is divided into two ends in concept, one end is the bracket wheel-facing end, the wheel-facing joint is sleeved into the bracket wheel-facing end and is welded with the bracket wheel-facing end into a whole, and the bracket wheel-facing end is called as the bracket&Head-on wheel joint "; the other end is a bracket delivery wheel end, and a screw hole (LK) is prefabricated on a splint thereof2) The screw hole (LK) is prefabricated on the joint of the delivery wheel1)，(LK1) The rail is a long screw hole, the joint of the transmission wheel is sleeved into the end of the transmission wheel of the bracket to form complementary butt joint with the joint of the reception wheel, and then a screw is used for passing through the screw hole (LK)2) And (LK)1) The clamping plate of the bracket is clamped to the feed wheel joint because of the screw hole (LK) on the feed wheel joint1) Is a long screw hole, and when the steel rail expands with heat and contracts with cold, the wheel is fedThe rail gap between the joint and the head-on wheel joint can be automatically adjusted through the long screw hole.
Example 7: bidirectional running bracket (fig. 7.1-7.3)
For the track of the train running in two directions, when the train runs in a certain direction, the track is a wheel sending joint, and when the train runs in the opposite direction, the track becomes a wheel receiving joint, so that the wheel receiving joint and the wheel sending joint are temporary identities and have the same structure; the vertical cutting line (QGX) is a long right-angle Z-shaped track, the bracket is cut into two L-shaped parts (figure 7.1), the middle part of the bracket is cut into two halves in a bisection mode, the bracket is called a half Bracket (BTC), the tail part of the bracket which is not cut is called a tail bracket (WTC), and the traveling direction of a train at the moment is assumed to be the arrow direction (figure 7.2), and a wheel delivering Joint (JT) is assumed to be connected with a wheel delivering Joint (JT)1) Is sleeved into a tail bracket of a delivery Wheel (WTC)1) And delivering wheel bracket half (BTC)1) And welded together to form a wheel-feeding bracket joint, a wheel-facing Joint (JT)2) Is sleeved into a tail bracket of a head-on Wheel (WTC)2) And head-on wheel bracket half (BTC)2) And welded together to form a front wheel bracket joint, and a front wheel Joint (JT) is connected with the two bracket joints1) Presses the half bracket of the head-on wheel (BTC)2) The pressure transmission relation is as follows: wheel → wheel feed Joint (JT)1) → head on wheel bracket half (BTC)2) → head on wheel Joint (JT)2)。
Example 8: welded fastening of joint and main rail (fig. 6)
The connection of the head-on wheel end: the wheel facing end of the bracket is lengthened, and the lengthened section is called as an additional bracket (FJTC)2) The shape of the clamping plate of the additional bracket needs to be designed to be matched with that of the main steel rail, after the main steel rail is sleeved in the additional bracket and is in butt joint with the head-on wheel joint, the main steel rail, the head-on wheel joint and the additional bracket are welded into a whole;
connecting the wheel conveying end: the feed wheel joint is lengthened to extend out of the bracket, and the lengthened section is called as an additional joint (FJJT)1) Designing an auxiliary bracket for assisting the butt joint of the additional joint and the main rail, wherein the splint of the auxiliary bracket has a boundary line, the shape of the splint matches with that of the joint at the joint side of the boundary line, and the shape of the splint matches with that of the main rail at the main rail side of the boundary lineAnd after the auxiliary bracket helps the additional joint and the main steel rail to be in butt joint and positioned, the additional joint, the main steel rail and the auxiliary bracket are welded into a whole.
Example 9: the joint is connected with the bracket screw of the main steel rail (figure 6)
The connection of the head-on wheel end: the wheel facing end of the bracket is lengthened, and the lengthened section is called as an additional bracket (FJTC)2) The shape of the clamping plate of the additional bracket needs to be designed to be matched with the main steel rail, and after the main steel rail is sleeved in the additional bracket and is butted with the head-on wheel joint, the main steel rail is clamped by the clamping plate of the additional bracket by screws;
connecting the wheel conveying end: the feed wheel joint is lengthened to extend out of the bracket, and the lengthened section is called as an additional joint (FJJT)1) The auxiliary bracket is designed to help the auxiliary joint and the main steel rail to be in butt joint positioning, the splint of the auxiliary bracket is provided with a dividing line, the shape of the splint is matched with that of the joint on the joint side of the dividing line, the shape of the splint is matched with that of the main steel rail on the main steel rail side of the dividing line, the auxiliary bracket helps the auxiliary joint and the main steel rail to be in butt joint positioning, the splint of the auxiliary bracket clamps the main steel rail by screws, and meanwhile, the splint of the auxiliary bracket clamps the auxiliary joint by screws.
Example 10: compound splicing type joint of wide sleeper bearing (fig. 5)
The composite splicing type joint is connected by adopting a wide sleeper (GZ), the width of the sleeper is not less than the length of the bracket, the bracket is completely connected on the sleeper, and a rubber pad (JD) is added below the bracket.
Drawings
1. (PJT) is a general reference number for the splice boss, with subscript 1 indicating the feed end and subscript 2 indicating the head end, e.g., (PJT)1) Shows the splicing convexity of the feeding wheel (PJT)2) Showing a meeting wheel splicing bulge; similar are Joint (JT), rail Gap (GF), half-Butt (BTC), tail-butt (WTC).
2. Reference numerals have been described in the previous figures and will not be described in the following figures in general.
3. Since a component needs to be described from a different perspective, multiple reference numbers may appear for that component, as in fig. 3.2, (DWC) (JB)1) (TC) directed to the same componentDifferent parts.
FIG. 1 is a complementary diagram of a trapezoidal stitch. The train running direction is indicated by an arrow; a main rail (ZGG); the joint part (JHB) of the main steel rail and the joint and the wheel-facing Joint (JT)2) (ii) a Trapezoidal base (TXD); trapezoidal head wheel splicing convex (PJT)2) (ii) a Trapezoidal head-on wheel splicing concave (PJA)2) (ii) a Trapezoidal wheel-feeding splicing convex (PJT)1) (ii) a Trapezoidal delivery wheel splicing concave (PJA)1) (ii) a Wheel feeding Joint (JT)1)。
FIG. 2 is a schematic view of a feed wheel joint. Long screw hole (LK)1)。
FIG. 3.1 is a schematic view of a head-on wheel joint.
FIG. 3.2-bracket schematic. Screw hole (LK)2) (ii) a A bracket (TC); a splint (JB); a positioning groove (DWC).
FIG. 3.3-bracket & wheel-facing joint schematic view.
FIG. 4-bracket&The head-on wheel joint and the wheel-feeding joint are assembled together. Wheel-feeding rail Gap (GF)1) (ii) a Rail joint of head-on wheel (GF)2)
Fig. 5-load pressure transfer diagram. Weld (HF); a rubber pad (JD); a sleeper (GZ).
FIG. 6 is the assembly diagram of the bracket, the head-on wheel joint and the wheel-sending joint which can be sleeved with the main steel rail. The main steel rail is sleeved in a screw hole (LK4) for fixing after the auxiliary bracket (FJTC); an additional joint (FJJT); the additional joint is sleeved in a screw hole (LK3) for fixing after the auxiliary bracket.
FIG. 7.1 is a view of a bracket operating in two directions. Rear bracket of head-on Wheel (WTC)2) (ii) a Send wheel bracket half (BTC)1) (ii) a Head-on wheel bracket half (BTC)2) (ii) a A cut line (QGX); wheel tail bracket (WTC)1)
FIG. 7.2 is a view of a bi-directional bracket with a joint placed thereon. Wheel feeding Joint (JT)1) Drawn transparent, representing a wheel bracket half (BTC)1) The shape of (a); head-on wheel Joint (JT)2) Drawn opaque.
FIG. 7.3 is a perspective view of a bracket operating in two directions. Head-on wheel joint bottom (JTD)2) (ii) a Wheel bracket (TC)2)。
FIG. 8.1-Triangle-shaped concatenation convex map sketch map. Triangular wheel feeding splicing convex (PJT)3) (ii) a Triangle head wheel splicing convex (PJT)4)。
FIG. 8.2-schematic view of a rectangular splice projection. Rectangular wheel-feeding splicing convex (PJT)5) (ii) a Rectangular head wheel splicing convex (PJT)6)。
Fig. 9.1-schematic diagram of concavo-convex splicing. Concave feed wheel splicing convex (PJT)7) (ii) a Convex head-on wheel splicing convex (PJT)8) (ii) a Transition rail seam (GF)3)。
Fig. 9.2 is a schematic diagram of inverted triangular concave-convex splicing. Inverted triangle concave wheel-feeding splicing convex (PJT)9) (ii) a Inverted triangle convex head-on wheel splicing convex (PJT)10)。
FIG. 9.3 is a schematic diagram of the trident concavo-convex stitching. Triangle feed wheel convex splicing convex (PJT)11) (ii) a Y-shape concave wheel-facing joint convex (PJT)12)。
Claims (10)
1. A ladder-shaped splicing bracket-added splicing type steel rail joint is called as a composite splicing type joint for short, the composite splicing type joint is manufactured in pairs and fixedly connected to the end part of a steel rail in pairs, the composite splicing type joint is formed by pan-ladder-shaped splicing and bracket splicing, the bracket splicing is that a head-on wheel joint is sleeved in a bracket and welded, and meanwhile, a wheel-sending joint is sleeved in the bracket; the step-type splicing is that the wheel feeding joint and the wheel receiving joint are sleeved into the bracket and then are mutually butted, and after the butting, the rail gap is calculated according to the rail temperature, and the rail gap is reserved;
for clarity of description, some definitions and conventions are first made:
● parts of the same type are designated by the same reference numerals with different numerical indices, such as: feed wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) The reference number (PJT) generally refers to each type of stitching bump, and the numerical subscript indicates which particular stitching bump is.
● the long I-steel part of the rail is called the main rail (ZGG);
● Rail Joint-a small section of special rail fixed to the end of rail, specially used to improve the rail gap defect, called rail joint, Joint (JT) for short;
● Joint rail-a section of special rail for manufacturing joint, the main rail cross section is "I" shaped, the upper cross rail head, the vertical rib is rail waist, the lower cross rail is rail bottom, the shape of the joint rail cross section is "I" shaped the same as the main rail cross section, the difference is that the vertical rib of the joint rail of the invention is thicker than the main rail waist, it is called "joint waist", the joint rail leaves the joint waist and rail bottom after removing the rail head, the cross section is "inverse T" shaped, defined as "joint waist bottom cross section".
● vertical line cutting, the cutting line is vertical to the rail surface, so the cutting plane is vertical to the rail surface, the default is zero slot, the vertical line cutting is for the convenience of explanation to obtain the shape of the splicing bulge, and is not the only processing method, and the processing method of the splicing bulge comprises the existing machining method.
● generalizing trapezoids-including trapezoids and composite trapezoids that are a composite of multiple trapezoids.
● trapezoidal bottom side — convex splicing convex trapezoidal bottom side is virtual and is indicated by a dotted line (trapezoidal bottom TXD) in FIG. 1, and The (TXD) is perpendicular to the edge line of the steel rail, and the subsequent trapezoidal bottom side is the same and will not be described.
● splicing convex, butt joint and complementation, wherein the joint steel rail is cut vertically, the running direction of the cutting seam is in a trapezoid shape, the part where the cutting seam runs is called splicing convex, one section of joint steel rail is cut into a delivery wheel joint containing the delivery wheel splicing convex and an oncoming wheel joint containing the oncoming wheel splicing convex, after the delivery wheel splicing convex and the oncoming wheel splicing convex are butt jointed, the delivery wheel joint and the oncoming wheel joint can be restored into a complete joint, the splicing convex butt joint which can be restored into the complete joint is called complementation, and the delivery wheel splicing convex and the oncoming wheel splicing convex are called the complementary splicing convex.
● an expansion joint is reserved at the junction of the wheel-feeding joint and the wheel-facing joint, and is called a rail Gap (GF);
● at the joint, the object that is pressed first by the wheel is called "wheel feed XX" (e.g.: wheel feed Joint (JT)1) Wheel-feeding rail Gap (GF)1) Bracket of wheel (TC)1) ); the object pressed by the wheel is called "wheel-facing XX" (e.g.: wheel-facing Joint (JT)2) Wheel-facing rail Gap (GF)2) Bracket of wheel (TC)2))。
● the top surface of the rail is referred to as the rail plane (GGM) when viewed from above the track, and the top surface of the joint is the joint plane and is also referred to as the rail plane, as is the rail plane. The wheels roll on the rail surface, and the arrow indicates the running direction of the train.
● since some parts need to be described from different angles, there are multiple numbers of these parts, such as bracket (TC), splint (JB), and alignment slot (DWC), pointing to the same part.
● general term for solid connection, welding, casting and rolling, or screw and splint connection.
Trapezoidal (including compound trapezoidal) mosaic structure: cutting a trapezoidal trace in the middle of a jointed rail using a vertical line cut (fig. 1) to form a wheel Joint (JT)1) And a head-on wheel Joint (JT)2) Wheel feeding Joint (JT)1) With a feed wheel splicing boss (PJT)1) And a feed wheel splicing Pocket (PJA)1) Head-on wheel Joint (JT)2) With a meeting wheel splicing boss (PJT)2) And a front wheel splicing recess (PJA)2) If the groove is zero or micro groove, the feed wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) Must be complementary, i.e. feed wheel splicing Projections (PJT)1) Just fills up the splicing concave (PJA) of the head-on wheel2) Front wheel splicing convex (PJT)2) Just fills up the splicing concave (PJA) of the feeding wheel1) And the joint waist needs to be cut into two pieces, so that the thickness of the joint waist is larger than that of the rail waist.
Trapezoidal concatenation theory of operation: a pair of wheel feeding joint and wheel facing joint, a complete joint is formed after splicing (figure 4), and then rail seams including wheel feeding rail seams (GF) are reserved according to the requirements of thermal expansion and cold contraction1) And wheel-facing rail Gap (GF)2) When the wheel is pressed against the wheel-feeding rail Gap (GF)1) While the upper part is also pressed to a feed wheel splicing bulge (PJT)1) So that the wheel is sent to the wheel splicing convex (PJT)1) Bearing in the wheel rail Gap (GF)1) The upper part of the wheel smoothly rolls over, and the wheel can not feel the wheel feeding rail Gap (GF)1) Presence of (a); similarly, when the wheel presses against the rail Gap (GF)2) Upper time is met wheel splicing convex (PJT)2) Bearing, in the wheel-facing rail Gap (GF)2) The wheel can roll smoothly and the wheel can not feel the rail Gap (GF)2) Is present. I.e. two rail Gaps (GF)1And GF2) The wheel is hidden by the corresponding splicing convex, and the wheel can not feel the existence of the rail gap, so the rail gap is defined as a hidden rail gap.
Bracket splicing structure: the bracket (TC) is a splint type channel steel (figure 3.2), two side plates of the groove are the splint (JB), the bottom plate of the groove and the two splint are cast (including machined) into a whole to form a splint type groove, the cross section of the groove is the cross section of the waist bottom of the joint, the groove is defined as a positioning groove (DWC), the cross section of the positioning groove is equal to the cross section of the waist bottom of the joint of the trapezoid joint, and the positioning groove just sleeves the joint waist and the rail bottom of the two trapezoid joints of the feed wheel and the head wheel (figure 4), so that the two complementary trapezoid joints are butted and positioned in the groove, and the upper, lower, left and right staggered teeth between the two trapezoid joints are eliminated; head-on wheel Joint (JT)2) The bracket is sleeved into the head-on wheel end of the positioning groove and then welded with the bracket into a whole (figure 3.3); wheel feeding Joint (JT)1) Is just sleeved in a positioning groove (DWC) at the end of a bracket sending wheel to form zero clearance and can slide, namely, sliding fit for short, and a screw passes through a screw hole (LK)1And LK2) The clamping plate can clamp the joint of the feeding wheel, and the screw hole (LK) of the joint of the feeding wheel1) Is a long hole to provide a sliding space when expanding with heat and contracting with cold;
the working principle of eliminating steps and break angles by splicing the brackets (TC) is as follows: the transmission relationship of the wheel-rail force is as follows (see fig. 5): load → wheel feed Joint (JT)1) → bracket (TC) → wheel-engaging Joint (JT)2) (ii) a In detail, when the wheel presses against the wheel Joint (JT)1) When the bracket is pressed on the bracket (TC), the bracket (TC) and the head-on wheel Joint (JT) are synchronously pressed2) Welding as a whole, so an important result is obtained: the wheel only needs to press the wheel feeding Joint (JT)1) That is to say presses the wheel-facing Joint (JT)2) Make the wheel-facing Joint (JT)2) And feeding wheel Joint (JT)1) Synchronously pressed and sunk, thereby realizing the joint of the head-on wheel (JT)2) Relative to the feed wheel Joint (JT)1) Is a zero step; as for the dog-ear, it is a by-product of the stepIn the product, the zero step is necessarily zero break angle.
2. The splicing boss of claim 1, further characterized by: the splicing convex adopts a right trapezoid splicing convex (figures 1-4)
Cutting a Z-shaped trapezoidal track (figure 1) at the middle part of the joint steel rail by adopting vertical line cutting, and cutting the joint steel rail into a delivery wheel Joint (JT)1) And head wheel Joint (JT)2) At the feed wheel Joint (JT)1) The rail gap end forms a right-angle trapezoidal wheel-feeding splicing bulge (PJT)1) And a right trapezoid feeding wheel splicing concave (PJA)1) Delivery wheel splicing convex (PJT)1) The shape of the rail joint is like a right trapezoid cross section of a dam, the right-angle side of the rail joint and the side of the joint are the same side, the top side corresponding to the rail joint is the top side of the trapezoid, the top side is the short side of the trapezoid, the 'trapezoid bottom (TXD)' of the right trapezoid is the long side and is a virtual side, and the shape is indicated by a dotted line in figure 1; in a similar manner, at the head-on wheel Joint (JT)2) The rail gap end forms a right-angle trapezoidal head-on wheel splicing bulge (PJT)2) And a right trapezoid head wheel splicing concave (PJA)2) Delivery wheel splicing convex (PJT)1) And the meeting wheel splicing convex (PJT)2) Is a pair of complementary right-angle ladder-shaped splicing projections, a feed wheel splicing Projection (PJT)1) Just fills up the splicing concave (PJA) of the head-on wheel2) Front wheel splicing convex (PJT)2) Just fills up the splicing concave (PJA) of the feeding wheel1) And butt-jointed to form a complete joint.
3. The right angle trapezoidal shaped splice male of claim 2, further characterized by: splicing convex by adopting right-angled triangle
The right angle trapezoidal shaped stitching lug of embodiment 1 further characterized by: meeting wheel splicing convex (PJT)2) Convex splicing with feed wheel (PJT)1) Has a length equal to zero and a length of the imaginary base (TXD) equal to the width of the joint, i.e. is a right triangle splicing bulge (fig. 8.1).
4. The right angle trapezoidal shaped splice male of claim 2, further characterized by: adopts a rectangular splicing projection
The top side of the right trapezoid is equal to the bottom side, and the right trapezoid splicing projection becomes the rectangular splicing projection (fig. 8.2).
5. The splicing boss of claim 1, further characterized by: adopts composite trapezoidal splicing convex
The compound trapezoidal concatenation is protruding to include: schematic diagram of male and female mating (fig. 9.1); splicing in an inverted triangular concave-convex shape (fig. 9.2); trident concavo-convex stitching (fig. 9.3).
6. The bracket of claim 1, further characterized by: adopting a one-way running bracket (figure 3.3-figure 6)
For the compound line, the train runs in one direction on a track, the wheel-sending joint is always the wheel-sending joint, the end surface of the bracket (TC) has no special requirement, a flat end surface can be adopted, namely, the flat end surface is formed by cutting in the direction vertical to the length direction of the bracket, the bracket is divided into two ends in concept, one end is the bracket wheel-facing end, the wheel-facing joint is sleeved into the bracket wheel-facing end and is welded with the bracket wheel-facing end into a whole, and the bracket wheel-facing end is called as the bracket&Head-on wheel joint "; the other end is a bracket delivery wheel end, and a screw hole (LK) is prefabricated on a splint thereof2) The screw hole (LK) is prefabricated on the joint of the delivery wheel1)，(LK1) The rail is a long screw hole, the joint of the transmission wheel is sleeved into the end of the transmission wheel of the bracket to form complementary butt joint with the joint of the reception wheel, and then a screw is used for passing through the screw hole (LK)2) And (LK)1) The clamping plate of the bracket is clamped to the feed wheel joint because of the screw hole (LK) on the feed wheel joint1) The long screw hole is adopted, and when the steel rail expands with heat and contracts with cold, the rail gap between the wheel feeding joint and the wheel facing joint can be automatically adjusted through the long screw hole.
7. The bracket of claim 1, further characterized by: by using a two-way running bracket (fig. 7.1-7.3)
For the track of the bidirectional running of the train, when the train runs in a certain direction, the track is a wheel-sending joint, and when the train runs in the reverse direction, the track becomes a wheel-receiving joint, so that the wheel-receiving joint and the wheel-sending joint are temporary identities and are the same nodeStructuring; the vertical cutting line (QGX) is a long right-angle Z-shaped track, the bracket is cut into two L-shaped parts (figure 7.1), the middle part of the bracket is cut into two halves in a bisection mode, the bracket is called a half Bracket (BTC), the tail part of the bracket which is not cut is called a tail bracket (WTC), and the traveling direction of a train at the moment is assumed to be the arrow direction (figure 7.2), and a wheel delivering Joint (JT) is assumed to be connected with a wheel delivering Joint (JT)1) Is sleeved into a tail bracket of a delivery Wheel (WTC)1) And delivering wheel bracket half (BTC)1) And welded together to form a wheel-feeding bracket joint, a wheel-facing Joint (JT)2) Is sleeved into a tail bracket of a head-on Wheel (WTC)2) And head-on wheel bracket half (BTC)2) And welded together to form a front wheel bracket joint, and a front wheel Joint (JT) is connected with the two bracket joints1) Presses the half bracket of the head-on wheel (BTC)2) The pressure transmission relation is as follows: wheel → wheel feed Joint (JT)1) → head on wheel bracket half (BTC)2) → head on wheel Joint (JT)2)。
8. The solid joint as defined in claim 1, further characterized by: welded fastening of joint and main rail (fig. 6)
The connection of the head-on wheel end: the wheel facing end of the bracket is lengthened, and the lengthened section is called as an additional bracket (FJTC)2) The shape of the clamping plate of the additional bracket needs to be designed to be matched with that of the main steel rail, after the main steel rail is sleeved in the additional bracket and is in butt joint with the head-on wheel joint, the main steel rail, the head-on wheel joint and the additional bracket are welded into a whole;
connecting the wheel conveying end: the feed wheel joint is lengthened to extend out of the bracket, and the lengthened section is called as an additional joint (FJJT)1) The auxiliary bracket is designed to assist the additional joint and the main steel rail in butt joint positioning, a splint of the auxiliary bracket is provided with a dividing line, the shape of the splint is matched with that of the joint on the joint side of the dividing line, the shape of the splint is matched with that of the main steel rail on the main steel rail side of the dividing line, and the auxiliary bracket assists the additional joint and the main steel rail in butt joint positioning and then integrally welds the additional joint, the main steel rail and the auxiliary bracket.
9. The solid joint as defined in claim 1, further characterized by: the joint is connected with the bracket screw of the main steel rail (figure 6)
The connection of the head-on wheel end: the wheel facing end of the bracket is lengthened, and the lengthened section is called as an additional bracket (FJTC)2) The shape of the clamping plate of the additional bracket needs to be designed to be matched with the main steel rail, and after the main steel rail is sleeved in the additional bracket and is butted with the head-on wheel joint, the main steel rail is clamped by the clamping plate of the additional bracket by screws;
connecting the wheel conveying end: the feed wheel joint is lengthened to extend out of the bracket, and the lengthened section is called as an additional joint (FJJT)1) The auxiliary bracket is designed to help the auxiliary joint and the main steel rail to be in butt joint positioning, the splint of the auxiliary bracket is provided with a dividing line, the shape of the splint is matched with that of the joint on the joint side of the dividing line, the shape of the splint is matched with that of the main steel rail on the main steel rail side of the dividing line, the auxiliary bracket helps the auxiliary joint and the main steel rail to be in butt joint positioning, the splint of the auxiliary bracket clamps the main steel rail by screws, and meanwhile, the splint of the auxiliary bracket clamps the auxiliary joint by screws.
10. The composite splice joint of claim 1 further characterized by: the compound splice joint adopts a wide sleeper to support (figure 5)
The composite splicing type joint is connected by adopting a wide sleeper (GZ), the width of the sleeper is not less than the length of the bracket, the bracket is completely connected on the sleeper, and a rubber pad (JD) is added below the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/000123 WO2020015336A1 (en) | 2018-07-16 | 2019-06-12 | Composite splicing joint having trapezoidal splicing and bracket splicing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018107742956 | 2018-07-16 | ||
| CN201810774295 | 2018-07-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110725165A true CN110725165A (en) | 2020-01-24 |
Family
ID=69217662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910240135.8A Pending CN110725165A (en) | 2018-07-16 | 2019-03-17 | Trapezoidal splicing bracket-added splicing type steel rail joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110725165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258717A1 (en) * | 2020-06-24 | 2021-12-30 | 陈启星 | Track using main-auxiliary type steel rails and up-and-down lap joint type joints to improve smoothness |
| WO2024012490A1 (en) * | 2022-07-13 | 2024-01-18 | 陈启星 | Main-auxiliary composite rail using bolt mechanism to downward press main rail tightly onto auxiliary rail |
-
2019
- 2019-03-17 CN CN201910240135.8A patent/CN110725165A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258717A1 (en) * | 2020-06-24 | 2021-12-30 | 陈启星 | Track using main-auxiliary type steel rails and up-and-down lap joint type joints to improve smoothness |
| WO2024012490A1 (en) * | 2022-07-13 | 2024-01-18 | 陈启星 | Main-auxiliary composite rail using bolt mechanism to downward press main rail tightly onto auxiliary rail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110725165A (en) | Trapezoidal splicing bracket-added splicing type steel rail joint | |
| WO2020015336A1 (en) | Composite splicing joint having trapezoidal splicing and bracket splicing | |
| KR20010076184A (en) | Friction stir joining method | |
| CN104452497A (en) | F-type steel double-slit joint of low- and medium-speed maglev system | |
| CN202055835U (en) | Segment for connecting a shield machine and transition connection device of a joint for pipe jacking method | |
| CN208965323U (en) | A kind of modified groove profile rail compromise joint | |
| WO2021258717A1 (en) | Track using main-auxiliary type steel rails and up-and-down lap joint type joints to improve smoothness | |
| CN104002883B (en) | A kind of crawler belt of caterpillar mobile robot | |
| JP4540203B2 (en) | Pipe fusion splicer | |
| CN212670155U (en) | Railway track lays and uses track coupling mechanism | |
| CN202469321U (en) | Quick connection pipeline | |
| CN201473841U (en) | Rail butt-welding machine for holding and aligning according to rail working edges | |
| CN211901940U (en) | Composite pipe groove pipe fitting | |
| CN208533275U (en) | A kind of rail reducing junction operation noise | |
| CN205347893U (en) | I -steel rail connecting structure | |
| CN219262394U (en) | Middle buried steel edge water stop connecting device | |
| CN202647031U (en) | Hot melting butt joint connecting mechanism of helically corrugated tubes | |
| CN202055122U (en) | Steel rail with seamless connection | |
| JP2014000769A (en) | Connection method of belt-like members used in construction method for regenerating existing pipe | |
| CN220332518U (en) | Conductor rail and conductor rail system | |
| CN211880027U (en) | Quick interfacing apparatus of pre-buried spool of assembly type building machine | |
| JPH0679803U (en) | Rail joint structure | |
| CN218787379U (en) | Novel pipeline all-welded ball valve | |
| JP4131485B2 (en) | Tail seal for expansion / contraction shield machine | |
| JPH067967Y2 (en) | Rigid train line joint device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200124 |