阅读说明：本技术 梯形拼接加托槽拼接式钢轨接头 (Trapezoidal splicing bracket-added splicing type steel rail joint ) 是由 陈启星 于 2019-03-17 设计创作，主要内容包括：复合拼接式接头,复合拼接式接头成对制造并成对固接于钢轨端部,复合拼接式接头由直角梯形拼接和托槽拼接构成,梯形拼接：用垂直线切割在接头钢轨中部切割一个梯形轨迹,形成一个直角梯形凸的送轮接头(JT<Sub>1</Sub>)和一个直角梯形凸的迎轮接头(JT<Sub>2</Sub>),用以使轨缝成为“隐轨缝”；托槽拼接：托槽(TC)是一块夹板式槽钢,其凹槽的两块侧板就是夹板(JB),凹槽大小形状与接头刚好匹配,将迎轮接头套入托槽并焊接,同时,送轮接头套入托槽与迎轮接头对接,用以消除台阶和折角。(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.)

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.