JP7149521B2 - Diverter sleeper and conversion device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branch sleeper that supports turnouts and a conversion device that converts the turnouts while they are housed in a housing device.

A conventional turnout 101 shown in FIG. 16 includes basic rails 103a and 103b, tongue rails 104a and 104b that contact and separate from the basic rails 103a and 103b, and a branch that supports the basic rails 103a and 103b and the tongue rails 104a and 104b. It has a sleeper 107, a rolling iron bar 108a that connects the tongue rails 104a and 104b, and a rolling iron machine 108 (see, for example, Patent Document 1). In the conventional turnout 101, rolling iron bars 108a are arranged in the gaps between the front and rear branch sleepers 107, and the rolling iron bars 108a are driven by the driving force generated by the rolling iron machine 108 to form tongue rails. 104a and 104b are turned to D ₁ and D ₂ directions.

The conventional turnout 101 shown in FIG. 16 connects tongue rails 104a and 104b and a rolling iron bar 108a with a connecting portion 113 as shown in FIG. The connecting portion 113 shown in FIG. 17 includes a connecting plate 114a attached to the tongue rail 104a, a fastening member 116A for fastening the connecting plate 114a to the tongue rail 104a, and a connecting plate 114a integrally attached to the rolling iron rod 108a. A connection plate 114b connected to, a fastening member 116B that fastens the rolling iron rod 108a and the connection plate 114a, a protrusion 114c that is fixed to the connection plate 114a and contacts the tip of the connection plate 114b, and a fastening member 116B is equipped with drop prevention metal fittings 116b and the like for preventing dropout of the rolling iron bolt 116a. _In the conventional turnout 101, when the tongue rail 104a is turned in the D1 direction, _a pressing force F1 is applied from the tip of the connecting plate 114b to the protrusion 114c to press the tongue rail 104a against the basic rail 103a. . _On the other hand, when the conventional turnout 101 changes the tongue rail 104a in the D2 direction, the rolling iron 108a _applies a tensile force F2 to the connecting plate 114a via the fastening member 116B, thereby It pulls the tongue rail 104a apart.

Japanese Patent Application Laid-Open No. 2018-009372

In railway tracks, ballast is tamped down under sleepers as a major repair work for ballasted tracks in order to adjust the height and level deviation of the track. The conventional turnout 101 shown in FIG. are placed in Therefore, the conventional turnout 101 has a problem that ballast cannot be inserted or compacted between the front and rear turnout sleepers 107 during track maintenance work. Further, in the conventional turnout 101, when replacing the rolling point machine 108 and the rolling point bar 108a, it is necessary to remove the rolling point bar 108a from the tongue rails 104a and 104b, and from the rolling point machine 108 After removing the rolling iron bar 108a, it is necessary to remove the rolling iron 108 from the branch sleeper 107, and there is a problem that the replacement work is troublesome.

In the conventional turnout 101 shown in _FIG . 17, when the rolling iron bar 108a pulls the tongue rail 104a, a tensile force F2 acts in a direction perpendicular to the length direction of the rolling iron bolt 116a. Therefore, the conventional turnout 101 has a problem that a shearing force acts on the point bar bolt 116a and the point bar bolt 116a is easily broken. Further, the conventional turnout 101 has a problem in that it is necessary to insert the point bar bolt 116a from below to above the point bar 108a, which takes time and effort.

SUMMARY OF THE INVENTION An object of the present invention is to provide a branch sleeper and a conversion device that facilitate track maintenance work and replacement work.

The present invention solves the above-described problems by means of solutions as described below.
In addition, although the code|symbol corresponding to embodiment of this invention is attached|subjected and demonstrated, it does not limit to this embodiment.
The invention of claim 1, as shown in FIGS. 3 to 7 , is a branch sleeper supporting turnouts (1), which includes a conversion device (8; 8A to 8D) for converting the turnouts. A top surface recess (7a) for mounting a housing device (25) to be housed, said diverting device providing a driving force for diverting movable rails (4a, 4b) of said turnouts by fluid pressure of working fluid. and a lock mechanism part (12) for locking the movable rail after conversion, and the upper surface recess is between the left and right fixed rails (3a, 3b) of the turnouts A branch sleeper (7B) characterized by being formed in

According to a second aspect of the present invention, there is provided a branched sleeper according to the first aspect, characterized in that, as shown in FIG. 4, the upper concave portion is formed on the upper surface of a synthetic sleeper.

According to the invention of claim 3, in the branch sleeper according to claim 1 or claim 2 , as shown in FIG. A branch sleeper characterized by being installed.

The invention of claim 4, as shown in FIGS. 3 to 7 , is a conversion device for converting the turnouts (1) in a state accommodated in the accommodation device (25), wherein the hydraulic pressure of the working fluid a driving force generating part (9) for generating a driving force for converting the movable rails (4a, 4b) of the turnouts; and a locking mechanism part (12) for locking the movable rails after the conversion. The device is characterized by comprising a mounting portion (25a) mounted in the upper surface recess (7a) between the left and right fixed rails (3a, 3b) of the branch sleeper (7B) for supporting the turnouts. a conversion device (8; 8A-8D);

The invention of claim ₅ is the conversion device according to claim 4 , as shown in FIG. , and a control unit (24) for controlling the driving force generating unit.

According to a sixth aspect of the present invention, in the conversion device according to the fourth or fifth aspect, as shown in FIGS. A conversion device, characterized in that it comprises an insulation (17) which insulates from the

According to a seventh aspect of the present invention, there is provided the conversion device according to any one of the fourth to sixth aspects, wherein the turnout devices and the driving force generating section are arranged as shown in FIGS. and connecting portions (13A, 13B) for connecting the above, and the connecting portions are connected by fitting with the connecting portion (14) on the side of the turnout and the connecting portion on the side of the turnout. and a connecting portion (15) on the side of the driving force generating portion, and a predetermined gap (Δ ₁ , Δ ₂ ) is formed between the connecting portion on the side of the turnout and the connecting portion on the side of the driving force generating portion. The switching device is characterized in that the connecting portion on the side of the turnout and the connecting portion on the side of the driving force generating portion are rotatably connected.

The invention of claim 8 is the conversion device according to any one of claims 4 to 7 , wherein the lock mechanism unit is configured to move the cylinder tube (10a) of the driving force generation unit during conversion of the movable rail. ) and the piston (10b) to form a gap (Δ ₃ ) therebetween, and when the movable rail is locked, the working fluid flows between the cylinder tube and the piston is stopped to bring them into close contact with each other.

The invention of claim 9 is the conversion device according to any one of claims 4 to 8 , wherein the turnouts are spaced in the rail length direction as shown in FIGS. It is a conversion device (8A to 8D) characterized by being arranged in multiple numbers.

According to this invention, track maintenance work and maintenance and inspection work can be easily carried out.

FIG. 4 is a plan view schematically showing a state in which the turnout provided with the branch sleeper according to the first embodiment of the present invention is switched to normal position; FIG. 4 is a plan view schematically showing a state in which the turnout provided with the branch sleeper according to the first embodiment of the present invention is reversed; FIG. 2 is a partially broken plan view showing the conversion device according to the first embodiment of the present invention, which is housed in a housing device and attached to a branch sleeper; FIG. 2 is a longitudinal sectional view partially broken away showing the conversion device according to the first embodiment of the present invention, which is housed in a housing device and attached to a branch sleeper; 1 is a configuration diagram of a conversion device according to a first embodiment of the present invention; FIG. It is a schematic diagram of the driving force generation part of the conversion apparatus which concerns on 1st Embodiment of this invention. It is a schematic diagram of the lock mechanism part of the conversion apparatus which concerns on 1st Embodiment of this invention, (A) is a schematic diagram of an unlocked state, (B) is a schematic diagram of a locked state. It is a sectional view of the connection part of the conversion device concerning a 1st embodiment of this invention. FIG. 4 is an external view of a connecting portion on the turnout side of the conversion device according to the first embodiment of the present invention, (A) is a side view, and (B) is a state cut along line IX-IXB of (A). It is a cross-sectional view showing the. It is an external view of the connection part by the side of the driving force generation part of the conversion apparatus which concerns on 1st Embodiment of this invention, (A) is a top view, (B) is a bottom view. 1A is a schematic diagram of a connecting portion of a conversion device according to a first embodiment of the present invention, and FIG. B) is a schematic diagram showing a state in which the tongue rail receives a tensile force and is converted. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the connection part of the conversion apparatus which concerns on 1st Embodiment of this invention, (A) is a schematic diagram which shows the state which a tongue rail is converting by receiving a pressing force, (B) is a tongue rail. is a schematic diagram showing a state in which is in close contact with the basic rail under a pressing force. It is a flow chart for explaining the operation of the conversion device according to the first embodiment of the present invention. FIG. 11 is a plan view schematically showing a state in which the turnout provided with the branch sleeper according to the second embodiment of the present invention is switched to normal position; FIG. 8 is a plan view schematically showing a state in which the turnout provided with the branch sleeper according to the second embodiment of the present invention is reversed; FIG. 10 is a plan view schematically showing a conventional branching device; FIG. 17 is a longitudinal sectional view showing an enlarged XVII portion of FIG. 16;

(First embodiment)
A first embodiment of the present invention will be described in detail below with reference to the drawings.
Wheels W shown in FIGS. 1 to 3 are members that are in rotational contact with base rails 3a, 3b and tongue rails 4a, 4b. The wheel W includes _a tread surface W1 that contacts the top surfaces of the rail heads 3c and 4c and receives frictional resistance, and a flange surface W2 that is continuously formed on the outer peripheral portion of the wheel W to prevent _derailment . It has

A turnout 1 shown in FIGS. 1 and 2 is a device that divides one track into two or more tracks. The branching device 1 shown in FIGS. 1 and 2 is a single _- opening branching device in which the reference line _LM is a straight line and the branch line (another line) LB is a curved line. For example, as shown in FIG. 1, the turnout ₁ is always open when the tongue rails 4a and 4b are turned to the D1 direction, and as shown in FIG. _When 4b turns to the D2 direction, it is the direction that is not open all the time (reversal). Here, "change" refers to switching the state of the tongue rails 4a and 4b in order to change the course of the train or vehicle. The turnout 1 shown in FIGS. 1 and 2 does not have the operation lever 108a unlike the conventional turnout 101 shown in FIG. A branching device 1 includes a point portion 2 and the like.

A point portion 2 shown in FIGS. 1 and 2 is a portion that divides the track among the portions that constitute the turnout 1 . 1 to 4, tongue rails 4a and 4b, a rail brace 5 shown in FIGS. 3 and 4, a floor plate 6 shown in FIG. 2 are provided with branch sleepers 7A and 7B. The point portion 2 has tongue rails 4a and 4b connected to a driving force generating portion 9 of a conversion device 8 shown in FIGS. , the tongue rails 4a and 4b _are changed in the _D1 and D2 directions. As shown in FIG. ₁ , when the tongue rails 4a and 4b are turned in the D1 direction, the tongue rail 4a is in close contact with the base rail 3a, and the tongue rail 4b is separated from the base rail 3b, as shown in FIG. On the other hand, as shown in FIG. ₂ , when the tongue rails 4a and 4b of the point portion ₂ are turned in the D2 direction opposite to the D1 direction, the tongue rail 4a is separated from the basic rail 3a and the tongue rail 4b is moved. is in close contact with the basic rail 3b.

The basic rails 3a and 3b shown in FIGS. 1 to 4 are fixed rails with which the tips of the tongue rails 4a and 4b are brought into close contact with each other and separated from each other. The basic rails 3a, 3b are fastened to the branch sleepers 7A, 7B via the floor plate 6 shown in FIG. As shown in FIGS. 3 and 4, the basic rail 3a includes a rail head portion 3c in contact with the wheels W, a rail bottom portion (flange portion) 3d supported by the branch sleepers 7A and 7B via the floor plate 6, A rail abdomen (web portion) 3e connecting the rail head portion 3c and the rail bottom portion 3d is provided. The rail brace 5 is a member that prevents the basic rails 3a and 3b from overturning. The rail brace 5 presses the bottom upper surface of the basic rail 3a in a state of being in close contact with the basic rail 3a on the side opposite to the side in contact with the tongue rail 4a, and detachably attaches the basic rail 3a to the floor plate 6. there is

The tongue rails 4a, 4b shown in FIGS. 1 to 4 are convertible movable rails with pointed ends. The tongue rails 4a and 4b have a rail head portion 4c which is in close contact with and separates from the rail head portion 3c of the basic rails 3a and 3b shown in FIGS. , the rail abdomen 4e connecting the rail head portion 4c and the rail _bottom portion _4d , and the tongue rails 4a and 4b shown in FIGS. It has a rear end portion 4f and a through hole 4g passing through the rail abdomen 4e shown in FIG. The through-hole 4g can be an existing through-hole through which the fastening bolt of the fastening member 116A penetrates in order to attach the connecting plate 114a of the conventional turnout 101 shown in FIG. is.

A floor plate 6 shown in FIG. 3 is a member that movably supports the tongue rails 4a and 4b. The floor plate 6 is a member inserted between the basic rails 3a, 3b and tongue rails 4a, 4b and the branch sleepers 7A, 7B. It is a fastening member to be used. The floor plate 6 slidably supports the bottom bottom surfaces of the rail bottom portions 4d of the tongue rails 4a and 4b, and also supports the bottom bottom surfaces of the rail bottom portions 3d of the basic rails 3a and 3b. The floorboards 6 are attached to the branch sleeper 7B along both edges of the branch sleeper 7B at intervals in the width direction of the branch sleeper 7B.

Branch sleepers 7A and 7B shown in FIGS. 1 and 2 are supports (bearing bodies) for supporting the branch 1. FIG. The branch sleepers 7A, 7B fix the basic rails 3a, 3b to maintain the gauge accurately, and widely disperse the train load transmitted from the basic rails 3a, 3b and the tongue rails 4a, 4b to the ballast. It is installed between the basic rails 3a, 3b and tongue rails 4a, 4b and the track bed. The branched sleepers 7A and 7B shown in FIGS. 1 and 2 are sleepers made of synthetic resin in which glass fibers are hardened with polyurethane resin foamed at a low magnification, and are manufactured from natural trees and subjected to antiseptic treatment. Mainly used for turnout 1 as a substitute for wooden sleepers. The branch sleepers 7A, 7B are arranged at predetermined intervals in the longitudinal direction of the basic rails 3a, 3b and the tongue rails 4a, 4b so that the basic rails 3a, 3b and the tongue rails 4a, 4b are discretely arranged. Support. The branch sleeper 7A shown in FIGS. 1 and 2 is the same sleeper as the conventional branch sleeper 107 shown in FIG. The branch sleeper 7B shown in FIGS. 1 to 4 is a sleeper incorporating the conversion device 8 in which the accommodation device 25 is mounted in the recess 7a on the upper surface while the conversion device 8 is accommodated in the accommodation device 25. FIG. The branch sleeper 7B has the same thickness as the branch sleeper 7A shown in FIGS. 1 and 2, but the width of the branch sleeper 7B is larger than the width of the branch sleeper 7A. widely formed. The branch sleeper 7B, as shown in FIG. 4, has an upper concave portion 7a.

The upper recessed portion 7a shown in FIG. 4 is a portion for mounting the housing device 25 thereon. The upper recessed portion 7a is formed on the upper surface of the branch sleeper 7B and is formed with a predetermined width, length and depth. The upper concave portion 7a is, for example, molded integrally with the branch sleeper 7B when the branch sleeper 7B is manufactured, or formed by machining after the branch sleeper 7B is manufactured. The upper concave portion 7a is formed between the left and right basic rails 3a and 3b of the turnout 1 (on the inner side of the track), and is formed narrower than the width of the branch sleeper 7B as shown in FIG. The upper recessed portion 7a is formed between the floorboards 6 in the width direction of the branch sleeper 7B with a gap therebetween. As shown in FIG. 4, the upper concave portion 7a has a flat mounting surface (bottom surface) 7b formed parallel to the upper surface of the branch sleeper 7B.

A conversion device 8 shown in FIGS. 1 to 6 is a device for converting the turnout 1 . The conversion device 8 converts the turnout 1 while being housed in the housing device 25, as shown in FIGS. The switching device 8 generates a driving force (switching force) for switching the turnout 1 to move the tongue rails 4a and 4b in directions D ₁ and D ₂ . The switching device 8 is a point device that also functions as a locking device that keeps the tongue rails 4a, 4b in close contact with the basic rails 3a, 3b and prevents the turnout 1 from switching. The diverting device 8 is operated by the hydraulic pressure of the working fluid to divert the turnout 1 . As shown in FIG. 4 , the conversion device 8 is housed in a housing device 25 that constitutes the conversion device 8 . The switching device 8 is arranged between the left and right basic rails 3a and 3b in a state in which devices corresponding to the conventional rolling point machine 108 and rolling point bar 108a shown in FIG. there is The conversion device 8 includes a driving force generating portion 9 shown in FIGS. 3 to 6, a lock mechanism portion 12 shown in FIG. 7, connecting portions 13A and 13B shown in FIGS. 8, the position detection unit 18 shown in FIG. 5, the load detection unit 19, the information storage unit 20, the power supply unit 21, the signal input unit 22, the signal output unit 23, and the control unit 24. etc. The conversion device 8 includes a driving force generation unit 9, a lock mechanism unit 12, a position detection unit 18, a load detection unit 19, an information storage unit 20, a power supply unit 21, a signal input unit 22, a signal output unit 23, a control unit 24, and the like. Components are unitized.

The driving force generator 9 shown in FIGS. 3 to 6 is means for generating a driving force for converting the tongue rails 4a and 4b. _The driving force generator 9 generates _a driving force for turning the tongue rails 4a and 4b by the hydraulic pressure of the working fluid, and turns the tongue rails 4a and 4b in directions D1 and D2. The driving force generator 9 is, for example, an actuator including a hydraulic cylinder and a hydraulic circuit that generate driving force by the hydraulic pressure of hydraulic oil. The driving force generating section 9 includes a cylinder section 10 and a fluid pressure circuit 11 shown in FIG.

A cylinder portion 10 shown in FIG. 6 is means for generating a driving force by the fluid pressure of the working fluid. The cylinder portion 10 includes a cylinder tube 10a shown in FIGS. 3 to 6, a piston 10b shown in FIGS. 5 and 6, piston rods 10c and 10d shown in FIGS. 3 to 6, and a male screw portion 10e shown in FIG. , a protective portion 10f shown in FIGS. 4 and 5, and the like. The cylinder part 10 is a double rod type double-acting cylinder in which the piston rods 10c and 10d are protruded from both ends of the cylinder tube 10a and the piston rods 10c and 10d are reciprocally driven in both directions (D ₁ and D ₂ directions). . _The cylinder portion ₁₀ turns the tongue rails 4a and 4b in directions D1 and D2 by reciprocatingly driving the piston rods 10c and 10d.

A cylinder tube 10a shown in FIGS. 3 to 6 is a portion through which the working fluid flows in and out. Both ends of the cylinder tube 10a are detachably supported on the top plate of the storage device 25 by support members such as brackets. A piston 10b shown in FIGS. 5 and 6 is a portion that receives the hydraulic pressure of the working fluid and moves within the cylinder tube 10a. The piston 10b is accommodated in the cylinder tube 10a so as to be able to reciprocate, and divides the inside of the cylinder tube 10a into _two cylinder chambers C1 and _C2 . The outer peripheral surface of the piston 10b is slidable on the inner peripheral surface of the cylinder tube 10a. The piston rods 10c and 10d shown in FIGS. 3 to 6 are parts that reciprocate in conjunction with the reciprocating motion of the piston 10b. The rear ends of the piston rods 10c and 10d are fixed to one pressure receiving surface and the other pressure receiving surface of the piston 10b, respectively. A male threaded portion 10 e shown in FIG. 8 is a portion that meshes with the female threaded portion 15 a of the connecting portion 15 . The male threaded portion 10e is formed at the distal end portions of the piston rods 10c and 10d. A protective portion 10f shown in FIGS. 3 and 4 is a portion that protects the piston rods 10c and 10d. The protective portion 10f prevents foreign matter such as rainwater or dust from entering the accommodation device 25 through the through hole 25b of the accommodation device 25, and protects the piston rods 10c and 10d from foreign matter such as rainwater or flying stones. The protective portion 10f has a bellows structure that expands and contracts in conjunction with the forward and backward movement of the piston rods 10c and 10d. One end of the protection portion 10f is attached to the tip portions of the piston rods 10c and 10d, and the other end is attached to the housing device 25. As shown in FIG.

A fluid pressure circuit 11 shown in FIG. 6 is means for operating the cylinder portion 10 . The fluid pressure circuit 11 switches the moving directions of the piston rods 10 c and 10 d of the cylinder portion 10 . The fluid pressure circuit 11 is, for example, a hydraulic unit for supplying hydraulic oil to the cylinder portion 10 . The fluid pressure circuit 11 includes an operation switching portion 11a, a fluid pressure source 11b, a working fluid storage portion 11c, flow paths 11d to 11g, and the like.

The operation switching unit 11a is means for switching the operations of the piston rods 10c and 10d. The operation switching unit 11a switches, for example, the flow paths 11d and 11e through which the working fluid flows. _The operation switching unit 11a switches the moving directions ₍ D1, D2 directions) of the piston rods 10c, 10d by causing the working fluid to flow into, out of, and stop the cylinder chambers _C1 , _C2 , and Stop 10d. The operation switching unit 11a is, for example, a directional control valve that controls the flow path of hydraulic oil. When the solenoid SOL _{- 1} is energized, the operation switching unit 11a supplies working fluid from the fluid pressure source 11b to the cylinder chamber C1 through the flow path 11d so that the piston rods 10c and 10d move in the D1 direction. Then, the working fluid is discharged from the cylinder chamber _C2 to the working fluid containing portion 11c through the flow path 11e. When the solenoid SOL- ₂ is energized, the operation switching unit 11a supplies working fluid from the fluid pressure source 11b to the cylinder chamber _C2 through the flow path 11e so that the piston rods 10c and 10d move in the D2 direction. Then, the working fluid is discharged from the cylinder chamber C ₁ to the working fluid containing portion 11c through the flow path 11d. When the solenoids SOL- ₁ and SOL-2 are de-energized, the operation switching unit 11a closes the flow paths 11d and 11e so as to stop the piston rods 10c and 10d, thereby switching the cylinder chambers C1 and _C2 . Do not supply or exhaust working fluid to

The fluid pressure source 11b is means for supplying working fluid to the cylinder portion 10 . The fluid pressure source 11b supplies working fluid to the cylinder portion 10 from the working fluid storage portion 11c through the operation switching portion 11a. The fluid pressure source 11b includes, for example, a hydraulic pump that delivers hydraulic oil and a drive motor that drives the hydraulic pump. The working fluid containing portion 11c is means for containing the working fluid. _The working fluid storage section 11c includes, for example, _a hydraulic tank for storing working oil flowing into the cylinder chambers C1 and _C2 and collecting working oil flowing out from the cylinder chambers C1 and _C2 . The flow path 11d is _a conduit through which the working fluid flows between the cylinder chamber C1 and the operation switching portion 11a. The flow path 11e is a conduit through which the working fluid flows between the cylinder chamber _C2 and the operation switching portion 11a. The flow path 11f is a conduit through which the working fluid flows from the working fluid containing portion 11c to the operation switching portion 11a through the fluid pressure source 11b. The flow path 11g is a conduit through which the working fluid flows from the operation switching portion 11a to the working fluid containing portion 11c.

A locking mechanism 12 shown in FIG. 7 is means for locking the tongue rails 4a and 4b after conversion. The lock mechanism 12 functions as a locking device that locks (fixes) and unlocks (unfixes) the tongue rails 4a and 4b at the stop position. The lock mechanism 12 locks the tongue rail 4a when the turnout ₁ is turned in the D1 direction and the tongue rail 4a is in close contact with the basic rail 3a, and the turnout ₁ is turned in the D2 direction to lock the tongue rail 4a. The tongue rail 4b is locked when the rail 4b is in close contact with the basic rail 3b. The locking mechanism 12 is such that the tongue rails 4a and 4b are not moved even when the tongue rails 4a and 4b are adhered to the base rails 3a and 3b (for example, usually about 2 to 3 kN) and in close contact (for example, about 5 kN). locks the tongue rails 4a and 4b. The lock mechanism portion 12 fixes the piston 10b of the cylinder portion 10 . The lock mechanism 12 has a flow path 12a through which the working fluid flows through the piston 10b and the piston rod 10c, and an operation of switching the operation of the piston 10b between a locked state and an unlocked state by opening and closing the flow path 12a. A switching portion 12b, a fluid pressure source 12c that supplies the working fluid to the flow path 12a, a working fluid storage portion 12d that stores the working fluid, and a cylinder tube 10a and the piston 10b that are fitted to both ends of the outer peripheral portion of the piston 10b. A packing 12e and the like are provided to seal the space between the . The lock mechanism 12 has a wide piston 10b, which is supplied from a fluid pressure source 12c. Hydraulic fluid from the outlet is pressurized to about 32 MPa, and the hydraulic fluid is supplied to the flow path 12a. As shown in FIG. 7A, when the working fluid flows between the packings 12e, the cylinder tube 10a between the packings 12e is expanded outward by the hydraulic pressure of the working fluid to lock the piston 10b. Switch to unlocked state. When the tongue rails 4a and 4b are switched, the lock mechanism 12 allows working fluid to flow between the cylinder tube 10a and the piston 10b to form a gap _Δ3 therebetween. On the other hand, as shown in FIG. 7B, when the working fluid flows out between the packings 12e, the lock mechanism portion 12 restores the cylinder tube 10a between the packings 12e from the inflated state so that the inner peripheral portion of the cylinder tube 10a is restored. The outer peripheral portion of the piston 10b is tightly fitted, and the piston 10b is switched to the locked state. When the tongue rails 4a and 4b are locked, the lock mechanism 12 stops the working fluid from flowing between the cylinder tube 10a and the piston 10b to bring them into close contact with each other.

The connecting portions 13A and 13B shown in FIGS. 3 to 6 are means for connecting the branching device 1 and the driving force generating portion 9. FIG. The connecting portion 13A connects the piston rod 10c of the driving force generating portion 9 and the tongue rail 4b, and the connecting portion 13B connects the piston rod 10d of the driving force generating portion 9 and the tongue rail 4a. When the switching device 8 switches the switch 1, the connection parts 13A and 13B apply force from the driving force generating part 9 to the switch 1 in the sleeper length direction and apply force in the sleeper width direction. The turnout 1 and the driving force generator 9 are connected so as not to act and to prevent the bending moment from acting. Both of the connecting portions 13A and 13B have the same structure, and the following describes the connecting portion 13B, and omits the detailed description of the other connecting portion 13A. The connecting portion 13B includes connecting portions 14 and 15 shown in FIGS. 5, 6 and 8, a fastening portion 16 shown in FIG. 8, and the like. The connecting portion 13B connects the connecting portion 14 on the side of the turnout 1 and the connecting portion 15 on the side of the driving force generating portion 9 so that no bending moment acts between them. The connecting portion 13B has a bearing structure similar to a pivot bearing that rotatably connects the flat surface on the connecting portion 14 side and the spherical surface on the connecting portion 15 side by point-contacting them. The connecting portion 13B forms predetermined gaps Δ ₁ and Δ ₂ between the connecting portion 14 on the side of the turnout 1 and the connecting portion 15 on the side of the driving force generating portion 9 . and the connecting portion 15 on the side of the driving force generating portion 9 are rotatably connected. Here, the gap Δ ₁ is formed between the connecting portions 14 and 15 in the rail length direction, and the gap Δ ₂ is formed between the connecting portions 14 and 15 in the sleeper length direction. formed.

The connecting portion 14 shown in FIGS. 5, 6, 8 and 9 is means for connecting by fitting with the connecting portion 15 on the driving force generating portion 9 side. The connecting portion 14 is attached to the branching device 1 side. As shown in FIGS. 5 and 6, the connecting portion 14 is a tongue rail fitting detachably attached to the tongue rail 4b. It is formed into a rectangular block in plan view. As shown in FIGS. 5 and 6, the connecting portion 14 is attached to the rail abdomen 4e inside the gauge of the tongue rail 4b. The connecting portion 14 includes a through hole 14a shown in FIGS. 8 and 9, a fastening nut 14b shown in FIG. 8, a fitting recess 14c shown in FIGS. 8 and 9, and the like. As shown in FIGS. 11 and 12 , the connecting portion 14 can swing about the central axis of the connecting portion 15 .

A through hole 14a shown in FIGS. 8 and 9 is a portion through which a fastening bolt 16a of the fastening portion 16 passes. As shown in FIG. 9A, the through holes 14a are formed near both ends of the connecting portion 14 in the longitudinal direction. A fastening nut 14b shown in FIG. 8 is a member attached to the male threaded portion 10e of the piston rod 10c. The fastening nut 14b prevents loosening between the female threaded portion 15a of the connecting portion 15 and the male threaded portion 10e of the piston rod 10c, thereby preventing the connecting portion 15 and the piston rod 10c from being separated. The fitting concave portion 14c shown in FIGS. 8 and 9 is a portion that fits with the fitting convex portion 15b of the connecting portion 15. As shown in FIGS. As shown in FIG. 9, the fitting concave portion 14c is formed between a pair of through holes 14a, and the fitting convex portion 15b of the connecting portion 15 can be inserted from above and below, as shown in FIG. As shown, the connecting portion 14 is formed from the upper surface portion to the lower surface portion. As shown in FIGS. 8 and 9, the fitting recess 14c includes a pressing force receiving portion 14d and a tensile force receiving portion 14e. The pressing force receiving portion 14 d is a portion that receives the pressing force F ₁ acting on the connecting portion 14 from the connecting portion 15 . The pressing force receiving portion 14d is a flat surface that contacts the pressing force acting portion 15c of the connecting portion 15, and is formed at the bottom portion of the fitting recess 14c. The tensile force receiving portion 14 e is a portion that receives the tensile force F ₂ acting from the connecting portion 15 to the connecting portion 14 . The tensile force receiving portion 14e is a stepped portion for hooking the fitting convex portion 15b of the connecting portion 15, and as shown in FIG. It is formed to be narrower than the width of the side. The tensile force receiving portion 14e is a flat surface that contacts the tensile force acting portion 15d of the connecting portion 15, and is formed in parallel with the pressing force receiving portion 14d with a gap therebetween. It is

The connecting portion 15 shown in FIGS. 5, 6, 8 and 10 is means for connecting by fitting with the connecting portion 14 on the turnout 1 side. The connecting portion 15 is attached to the driving force generating portion 9 side. The connecting portion 15 is a cylinder end metal fitting that is detachably attached to the piston rod 10c of the driving force generating portion 9. A block having a large diameter portion and a small diameter portion is machined from a metal such as carbon steel for machine structural use. formed in the body. As shown in FIG. 8, the connecting portion 15 is detachably attached to the tip portion of the piston rod 10c. The connecting portion 15 applies a tensile force F2 in substantially the same direction as the length direction of the fastening portion 16 so that almost no shear force acts on the fastening portion 16 when the driving force generating portion 9 pulls the turnout ₁ . Let As shown in FIGS. 8 and 10, the connecting portion 15 includes a female screw portion 15a, a fitting convex portion 15b, and the like.

The female threaded portion 15a shown in FIGS. 8 and 10 is a portion that meshes with the male threaded portion 10e of the piston rod 10c. As shown in FIG. 10A, the female threaded portion 15a is formed to a predetermined depth on the rear end side of the connecting portion 15. As shown in FIG. The fitting projection 15b shown in FIGS. 8 and 10 is a portion that fits into the fitting recess 14c of the connecting portion 14. As shown in FIG. The fitting protrusion 15 b is formed at the tip of the connecting portion 15 . As shown in FIGS. 8 and 10, the fitting convex portion 15b includes a pressing force application portion 15c and a tensile force application portion 15d. The pressing force applying portion 15 c is a portion that applies a pressing force F ₁ from the connecting portion 15 to the connecting portion 14 . The pressing force acting portion 15 c is a spherical surface that makes point contact with the pressing force receiving portion 14 d of the connecting portion 14 . As shown in FIGS. 11 and 12, even if the pressing force receiving portion 14d is tilted when the tongue rail 4b is converted, the pressing force acting portion 15c always makes point contact with the pressing force receiving portion 14d and presses the tongue rail 4b. Apply a force F ₁ . A tensile force applying portion 15d shown in FIGS. 8 and 10 is a portion that applies a tensile force F ₂ from the connecting portion 15 to the connecting portion 14 . The tensile force applying portion 15d is a stepped portion that hooks the fitting concave portion 14c of the connecting portion 14, and as shown in FIG. 15b is formed to have a smaller outer diameter on the rear end side. The tensile force acting portion 15 d is a flat surface that contacts the tensile force receiving portion 14 e of the connecting portion 14 . Even if the tensile force receiving portion 14e inclines when the tongue rail 4b is changed, the tensile force application portion 15d is always in contact with the tensile force receiving portion _14e to apply the tensile force F2 to the tongue rail 4b.

A fastening portion 16 shown in FIG. 8 is means for fastening the connecting portion 14 on the side of the turnout 1 to the turnout 1 . The fastening portion 16 fastens the tongue rail 4b and the connecting portion 14 so that the tongue rail 4b is switched in conjunction with the advancing and retreating motion of the piston rod 10c. The fastening portion 16 has a fastening bolt 16a that is inserted into the through hole 4g of the tongue rail 4b, the through hole 17c of the insulating plate 17a, and the through hole 17d of the insulating bush 17b, and a female threaded portion that meshes with the male threaded portion of the fastening bolt 16a. A fastening nut 16b and a washer 16c sandwiched between the fastening nut 16b and the connecting portion 14 are provided.

The insulating section 17 shown in FIGS. 5, 6 and 8 is a means for electrically insulating between the branching device 1 and the driving force generating section 9 . The insulating portion 17 electrically insulates the left and right tongue rails 4a and 4b shown in FIGS. 1 to 6, thereby preventing the track circuit for detecting the presence or absence of a train from being electrically short-circuited. As shown in FIG. 8, the insulating portion 17 includes an insulating plate 17a and an insulating bush 17b. The insulating plate 17a is a member that electrically insulates the branching device 1 and the connecting portion 14 from each other. The insulating plate 17 a is formed by machining an insulating synthetic resin such as polyacetal resin, and is sandwiched between the rail abdomen 4 e of the tongue rail 4 b and the connecting portion 14 . The insulating plate 17a has through holes 17c through which the fastening bolts 16a pass. The insulating bush 17b is a member that electrically insulates the fastening portion 16 and the connecting portion 14 from each other. The insulating bush 17b is formed by machining an insulating resin such as polyacetal, and is sandwiched between the through hole 14a of the connecting portion 14 and the fastening bolt 16a and between the surface of the connecting portion 14 and the washer 16c. is The insulating bush 17b has a through hole 17d through which the fastening bolt 16a of the fastening portion 16 passes.

A position detection unit 18 shown in FIG. 5 is means for detecting the positions of the tongue rails 4a and 4b. The position detector 18 detects the point strokes of the tongue rails 4 a and 4 b by detecting the stroke of the driving force generator 9 . The position detector 18 detects the positions of the tongue rails 4a and 4b by detecting the stroke (displacement) of the piston 10b or the piston rods 10c and 10d of the driving force generator 9, for example. It is detected as the position of the tongue rails 4a and 4b. The position detection unit 18 includes a displacement sensor that optically or magnetically detects the displacement of the piston 10b or the piston rods 10c and 10d, and a position sensor that calculates the positions of the tongue rails 4a and 4b based on the output signal of this displacement sensor. Equipped with a calculation unit and the like. The position detection unit 18 outputs the positions of the tongue rails 4a and 4b to the control unit 24 as position detection signals (position information).

The load detector 19 is means for detecting loads acting on the tongue rails 4a and 4b. The load detection section 19 detects the load (converting force) acting on the tongue rails 4 a and 4 b by detecting the hydraulic pressure of the working fluid in the cylinder section 10 or the hydraulic pressure circuit 11 . The load detection unit 19 detects, for example, the adhesion force when the tongue rails 4a and 4b are in close contact with the basic rails 3a and 3b. Here, the adhesion force is the force applied while the tongue rails 4a and 4b are in close contact with the basic rails 3a and 3b. The load detection unit 19 includes pressure sensors that detect the pressure of the working fluid in the cylinder chambers C ₁ and C ₂ or the flow paths 11d and 11e, and acts on the tongue rails 4a and 4b based on the output signals of the pressure sensors. It is equipped with a load calculation unit that calculates the load to be applied. The load detection unit 19 outputs the load acting on the tongue rails 4a and 4b to the control unit 24 as a load detection signal (load information).

The information storage unit 20 is means for storing various information regarding the conversion device 8 . The information storage unit 20 stores determination criteria that serve as criteria when determining whether or not the state of the branching device 1 is abnormal. The information storage unit 20 is _a memory that stores the normal stop position Th1 and the normal adhesion force _Th2 as determination criterion information. The normal stop position Th1 is _a criterion for determining whether or not the stop positions of the tongue rails 4a and 4b are normal stop positions. The normal stop position Th1 is _a position within a predetermined range where the tongue rails 4a and 4b stop when the tongue rails 4a and 4b are in close contact with the basic rails 3a and 3b and the contact force is within a normal range. The normal stop position Th1 is such that the tongue rails 4a and 4b are in normal contact with the basic rails 3a and 3b when the alignment of the turnout _{1 is adjusted to an optimum state during assembly or installation of the turnout 1} , for example. It is set to a stop position (changeover position) within a predetermined range where the tongue rails 4a and 4b stop when they are turned on. _The normal adhesion Th2 is a criterion for judging whether or not the adhesion of the tongue rails 4a, 4b to the basic rails 3a, 3b is normal. _The normal contact force Th2 is a predetermined force that acts on the tongue rails 4a and 4b when the tongue rails 4a and 4b are in normal contact with the basic rails 3a and 3b and the contact force is within a predetermined range (for example, about 5 kN). The load value is within the range. _The normal contact force Th2 is, for example, when the alignment of the turnout 1 is adjusted to an optimum state during assembly or installation of the turnout 1, the tongue rails 4a and 4b are in normal contact with the base rails 3a and 3b. The load value acting on the tongue rails 4a and 4b is set to be within a predetermined range.

The power supply unit 21 is means for supplying power to the conversion device 8 . The power supply unit 21 supplies power necessary for operating the conversion device 8 to the control unit 24 . The power supply unit 21 is, for example, a solar battery that converts sunlight into electric power and outputs the electric power, a secondary battery (storage battery) that can be used repeatedly by charging, or an AC power supply or a DC power supply supplied from an electric power company or the like.

The signal input unit 22 is means for inputting various signals to the conversion device 8 . The signal input unit 22, for example, is transmitted from an interlocking device that safely and efficiently controls the vehicle, and the control unit 24 receives a change command signal (control information) for changing the direction of the _{turnout 1} to the directions D1 and D2. to enter. The signal output unit 23 is means for outputting various signals from the conversion device 8 . The signal output unit 23 outputs, for example, the locking (unlocking) and unlocking (unlocking) of the turnout 1 by the lock mechanism unit 12, the detection result of the position detection unit 18, the detection result of the load detection unit 19, etc. as a display signal ( output to the interlocking device as display information).

The control unit 24 is means for controlling various operations related to the conversion device 8 . The controller 24 controls the driving force generator 9 based on the detection result of the position detector 18 . The controller 24 controls the driving force generator ₉ so that the tongue rails 4a and 4b stop at the normal stop position Th1. The control unit 24 compares the position information output by the position detection unit 18 with the normal stop position information stored in the information storage unit ₂₀ , and the tongue rails 4a and 4b stop at the normal stop position Th1, which is the target stop position. The tongue rails 4a and 4b are driven by the driving force generator 9 until. The control section 24 controls the driving force generating section 9 so that the contact force when the tongue rails 4a and 4b contact the basic rails 3a and 3b is within the range of the normal contact force _Th2 . The control unit 24 compares the load information output by the load detection unit 19 with the criterion information stored in the information storage unit ₂₀ , and determines that the contact force acting on the tongue rails 4a and 4b is within the normal contact force Th2. The driving force generator 9 is controlled so that For example, the control unit 24 instructs the operation switching unit 11a to switch the switching direction of the branching device 1, instructs the fluid pressure source 11b to supply and stop the working fluid, and instructs the lock mechanism unit 12 to switch the direction of branching after switching. Command the operation switching unit 12b to fix and release the device 1, command the fluid pressure source 12c to supply and stop the working fluid, command the position detection unit 18 to detect the positions of the tongue rails 4a and 4b. , to command the load detection unit 19 to detect the load acting on the tongue rails 4a and 4b, to control the driving force generation unit 9 based on the detection result of the load detection unit 19, and to output the display information to the signal output unit 23. command the output. The fluid pressure circuit 11, the lock mechanism portion 12, the position detection portion 18, the load detection portion 19, the information storage portion 20, the power supply portion 21, the signal input portion 22, the signal output portion 23, and the like are connected to the control portion 24. .

The housing device 25 shown in FIGS. 1 to 5 is a device for housing the conversion device 8 . As shown in FIGS. 3 and 4, the housing device 25 is a housing that houses the conversion device 8 in a sealed state. The accommodation device 25 accommodates each component of the conversion device 8 in a unitized state, and also functions as a support section that supports the conversion device 8 . The storage device 25 protects the conversion device 8 from wind and rain and flying stones, and covers the conversion device 8 by attaching a metal or synthetic resin plate-like member to a framework assembled from metal frame members. . As shown in FIG. 3, the storage device 25 has a lower portion that is detachably fitted into the recess 7a on the upper surface of the branch sleeper 7B, and an upper portion of the storage device 25 that is attached to the upper surface of the branch sleeper 7B. exposed from The length and width of the storage device 25 are set to be slightly smaller than the width and length of the recessed portion 7a on the upper surface of the storage device 25, and the construction gauge secured on the track is used for safe operation of the vehicle. The height of this storage device 25 is set within a range that does not exceed. The storage device 25 is formed to have a flat surface so as to join with the upper recessed portion 7a of the branch sleeper 7B shown in FIG. 4 are provided with through holes 25b through which the piston rods 10c and 10d can move back and forth.

Next, the operation of the branch sleeper according to the first embodiment of this invention will be described.
When replacing the conventional branch sleeper 107 shown in FIG. 16 with the branch sleeper 7B shown in FIGS. branch sleeper 107 is replaced with one branch sleeper 7B. First, the operation pin and the rolling point bar 108a of the rolling point machine 108 shown in FIG. An operator removes the rod 108a. Next, an operator removes two branch sleepers 107 from the basic rails 103a, 103b and the tongue rails 104a, 104b from the track.

The conversion device 8 is assembled in the factory, and the conversion device 8 is preliminarily incorporated in the storage device 25. The branch sleeper 7B is carried to the site in a state where the storage device 25 is attached to the recess 7a on the upper surface of the branch sleeper 7B. be done. A worker lays on the track a branch sleeper 7B having a built-in conversion device 8 shown in FIGS. 15 is screwed into the female threaded portion 15a. When an operator tightens the fastening nut 14b, the connecting portion 15 is attached to the piston rods 10c and 10d. Next, an operator fits the fitting convex portion 15b of the connecting portion 15 into the fitting concave portion 14c of the connecting portion 14, and inserts the insulating bush 17b of the insulating portion 17 into the through hole 14a of the connecting portion 14 by the operator. With the insulating plate 17a sandwiched between the rail abdomen 4e of the tongue rails 4a and 4b and the connecting portion 14, the connecting portion 14 is attached to the tongue rails 4a and 4b by tightening the fastening portion 16 by an operator. As shown in FIGS. 5 and 6, the connecting portion 14 and the connecting portion 15 are connected to each other, and after the driving force generating portion 9 and the branching device 1 are connected, the connection shown in FIGS. Ballast ballast is inserted around the branch sleeper 7B and tamped. When installing a new branch sleeper 7B on a new railroad track, the procedure is the same as when replacing the branch sleeper 7B on an existing railroad track.

When replacing the old branch sleeper 7B with a new branch sleeper 7B, the driving force generator 9 and the turnout 1 are separated by the reverse procedure of installing the branch sleeper 7B. The operator separates the connection portion 14 and the connection portion 15 of the connection portions 13A and 13B shown in FIGS. 5 and 6, replaces the old branch sleeper 7B with a new branch sleeper 7B, and 15 are connected by an operator. After that, ballast ballast is inserted around the branch sleeper 7B shown in FIGS. 1 and 2, and compaction is performed. When only the conversion device 8 is to be replaced or inspected, the worker removes the storage device 25 together with the conversion device 8 from the upper surface recess 7a, and the worker separates the connection portion 14 and the connection portion 15 of the connection portions 13A and 13B. . The worker reattaches the storage device 25 to the upper recessed portion 7 a together with the conversion device 8 after inspection or replacement, and connects the connecting portion 14 and the connecting portion 15 .

Since the branch sleeper 7B shown in FIGS. 1 and 2 is the same synthetic sleeper as the branch sleeper 7A, the turnouts 1 are all supported by the same synthetic sleeper. Therefore, when the train passes through the turnout 1, the wheel loads acting from the wheels W on the basic rails 3a, 3b and the tongue rails 4a, 4b do not fluctuate, and the ride quality does not deteriorate.

Next, the operation of the conversion device according to the first embodiment of this invention will be described.
The operation of the control unit 24 shown in FIG. 5 will be mainly described below.
At step (hereinafter referred to as S) 100 shown in FIG. 13, the control unit 24 determines whether or not a conversion command signal has been input. When diverting the turnout ₁ in the D1 direction shown in FIG. 1, a turn command signal instructing to turn the turnout ₁ in the D1 direction is input to the control unit 24 through the signal input unit 22 shown in FIG. . On the other hand, when diverting the turnout 1 in the D2 direction shown in FIG. ₂ , a turn command signal instructing to turn the turnout ₁ in the D2 direction is sent to the control unit 24 through the signal input unit 22 shown in FIG. input. When the conversion command signal is input to the control unit 24, the process proceeds to S110, and when the conversion command signal is not input to the control unit 24, the control unit 24 repeats the processing of S110.

At S<b>110 , the control unit 24 commands the lock mechanism unit 12 to unlock the turnout 1 . When the control unit 24 commands the lock mechanism unit 12 to unlock the turnout 1, the control unit 24 switches SOL-1 of the operation switching unit 12b shown in FIG. The control unit 24 commands the supply. As shown in FIG. 7A, when the fluid pressure source 12c sends the working fluid from the working fluid storage portion 12d to the flow path 12a, the working fluid flows between the cylinder tube 10a and the piston 10b. Therefore, the hydraulic pressure of the working fluid increases, the cylinder tube 10a expands outward and is elastically deformed _, a gap Δ3 is formed between the cylinder tube 10a and the piston 10b, and the piston 10b moves inside the cylinder tube 10a. becomes movable.

In S120, the control section 24 instructs the signal output section 23 to output a display signal. The unlocking (unlocking) of the turnout 1 by the lock mechanism section 12 is output as a display signal from the signal output section 23 to the interlocking device.

_At S130, the controller 24 instructs the driving force generator ₉ to switch to the directions D1 and D2. As shown in FIG. _{1, when the tongue rails 4a and 4b are to be turned in the D1 direction, the controller 24 commands the fluid pressure circuit 11 shown in FIG. 5 to turn the turnout 1 in} the D1 direction. Therefore, the control unit 24 switches SOL-2 of the operation switching unit 11a shown in FIG. 6 to the energized state, and commands the fluid pressure source 11b to supply the working fluid. When the fluid pressure source 11b sends the working fluid from the working fluid storage portion 11c to the flow path 11f, the working fluid flows into the cylinder chamber _C2 through the operation switching portion 11a and the flow path _11e , and also flows from the cylinder chamber C1 to the operation switching portion. The working fluid flows out through 11a and channels 11d and 11g and returns to the working fluid containing portion 11c. As _a result, the piston 10b shown in FIG. ₆ moves in the D1 direction, and the tongue rails 4a and 4b turn in the D1 direction as shown in FIG.

On the other hand, as shown in FIG. ₂ , when the tongue rails 4a and 4b are to be diverted in the D2 direction, the controller 24 commands the fluid pressure circuit 11 shown in _FIG . Therefore, the control unit 24 switches SOL-1 of the operation switching unit 11a shown in FIG. 6 to the energized state, and commands the fluid pressure source 11b to supply the working fluid. When the fluid pressure source 11b sends out the working fluid from the working fluid storage portion 11c to the flow path _11f , the working fluid flows into the cylinder chamber C1 through the operation switching portion 11a and the flow path 11d, and also flows from the cylinder chamber _C2 to the operation switching portion. The working fluid flows out through 11a and channels 11e and 11g and returns to the working fluid containing portion 11c. As a result, the piston 10b shown in _FIG . 6 moves in the D2 direction, and the tongue rails 4a and 4b turn in the D2 direction as shown in _FIG .

In S140 shown in FIG. 13, the control unit 24 instructs the position detection unit 18 to detect the positions of the tongue rails 4a and 4b, and the control unit 24 instructs the load detection unit 19 to detect the load acting on the tongue rails 4a and 4b. commands. Therefore, the position detection unit 18 starts detecting the current positions of the tongue rails 4a and 4b shown in FIG. The load detection unit 19 starts detecting the applied load, and the load detection unit 19 outputs a load detection signal to the control unit 24 .

As shown in FIGS. ₁ and ₂ , when the tongue rails 4a and 4b turn to the D1 and D2 directions, the tongue rails 4a and 4b rotate around the rear end 4f, and as shown in FIGS. As shown, the tip positions of the tongue rails 4a and 4b are slightly displaced (slightly advanced or retreated) in the rail length direction. For example, when the gaps Δ ₁ and Δ ₂ are not formed between the connecting portion 14 and the connecting portion 15 shown in FIG. 8, minute displacements of the tongue rails 4 a and 4 b in the rail length direction are restricted. . Therefore, force is transmitted from the piston rod 10c to the tongue rail 4b in the rail length direction, and a bending moment acts between the piston rod 10c and the tongue rail 4b. In this embodiment, as shown in FIG. 8, gaps Δ ₁ and Δ ₂ are formed between the connecting portion 14 and the connecting portion 15 to prevent minute displacements of the tongue rails 4 a and 4 b in the rail length direction. Allowed. Therefore, as shown in FIG. 11, the tensile force applying portion 15d of the connecting portion 15 and the tensile force receiving portion 14e of the connecting portion 14 are rotatable with each other while being in contact with each other, and as shown in FIG. The pressing force acting portion 15c of the connecting portion 15 and the pressing force receiving portion 14d of the connecting portion 14 are mutually rotatable while being in contact with each other. As a result, as shown in FIGS. 11(B) and 12(A), when the tongue rail 4b is turned, the center line O ₂ of the fitting recess 14c is shifted from the center line O ₁ of the fitting projection 15b. is tilted, the pressing force _F1 and the tensile force F2 _are always transmitted from the piston rod 10c to the tongue rail 4b in the sleeper length direction. Also, almost no force is transmitted in the rail length direction, and no bending moment acts between the piston rod 10c and the tongue rail 4b. As a result, the tensile force F ₂ acts on the fastening portion 16 shown in FIG. 8, and almost no shearing force acts on the fastening portion 16 .

At S150 shown in _FIG . 13, the control unit 24 determines whether or not the adhesion force acting on the tongue rails 4a and 4b has reached the normal adhesion force Th2. _The control unit 24 compares the adhesion force acting on the tongue rails 4a and 4b with the normal adhesion force _Th2 , and determines whether or not the adhesion force acting on the tongue rails 4a and 4b has reached the normal adhesion force Th2. 24 decides. When the control unit 24 determines that the contact force acting on the tongue rails 4a and 4b has reached the normal contact force _Th2 , the process proceeds to S160. _On the other hand, when the control unit 24 determines that the adhesion force acting on the tongue rails 4a and 4b has not reached the normal adhesion force Th2, the process returns to S130, and the adhesion force acting on the tongue rails 4a and 4b reaches the normal adhesion force _Th2 . The control unit 24 repeats the processes after S130 until reaching .

_At S160, the control unit 24 determines whether or not the tongue rails 4a, 4b have stopped at the normal stop position Th1. _The controller 24 compares the current positions of the tongue rails 4a and 4b with the normal stop position _Th1 , and determines whether or not the tongue rails 4a and 4b have stopped at the normal stop position Th1. When the control unit 24 determines that the tongue rails 4a and 4b are not stopped at the normal stop position _Th1 , the control unit 24 proceeds to S170 and determines that the tongue rails 4a and 4b are stopped at the normal stop position _Th1 . If so, the process proceeds to S180.

At S170, the control section 24 instructs the signal output section 23 to output a display signal. In S160, the control unit 24 determines that the tongue rails 4a and 4b have not stopped within the range of the criterion Th1 even though the loads acting _on the tongue rails 4a and 4b have reached the range of the criterion _Th2 . , the tongue rails 4a and 4b are stopped before the normal stop position or past the normal stop position. Therefore, there is a possibility that the alignment of the branch 1 is abnormal. When the control unit 24 determines that the tongue rails 4a and 4b are not stopped at the normal stop positions, the signal output unit 23 outputs the linear abnormality of the turnout 1 to the interlocking device as an indication signal.

At S180, the control unit 24 instructs the lock mechanism unit 12 to lock the turnout 1. FIG. When the control unit 24 commands the lock mechanism unit 12 to unlock the turnout 1, the control unit 24 switches SOL-2 of the operation switching unit 12b shown in FIG. The control unit 24 commands to stop the supply. As shown in FIG. 7A, when the fluid pressure source 12c stops sending the working fluid, the working fluid stops flowing between the cylinder tube 10a and the piston 10b. As a result, the hydraulic pressure of the working fluid is reduced, the cylinder tube 10a is restored, the cylinder tube 10a and the piston 10b are brought into tight contact with each other, and the piston 10b is fixed within the cylinder tube 10a.

At S190, the control section 24 instructs the signal output section 23 to output a display signal. For example, the signal output unit 23 outputs the lock (unlocking) of the turnout 1 by the lock mechanism unit 12 as a display signal to the interlocking device.

The branch sleeper according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment, the accommodating device 25 for accommodating the switching device 8 for switching the turnout 1 is attached to the upper surface concave portion 7a. Therefore, unlike the conventional turnout 101 shown in FIG. 16, it is possible to eliminate the rolling iron 108a between the front and rear branch sleepers 107, thereby eliminating locations where ballast cannot be inserted or compacted. . As a result, maintenance work can be performed in the same manner as for the tracks in the front and rear general sections, and work such as separating the conventional turnout 101 and the point machine 108 is no longer necessary, thereby saving labor in maintenance work. can be achieved. In addition, since the conversion device 8 can be integrated with the branch sleeper 7B, it is not necessary to install a device such as the point machine 108 of the conventional switch 101 shown in FIG. Effective space can be secured outside.

(2) In the first embodiment, the upper recessed portion 7a is formed between the left and right basic rails 3a and 3b of the turnout 1. As shown in FIG. For this reason, the conversion device 8 can be built in the branch sleeper 7B, and the places where the ballast cannot be inserted or compacted can be eliminated, and maintenance work can be labor-saving. In addition, the conversion device 8 can be arranged compactly between the left and right basic rails 3a and 3b where a relatively large space can be secured.

(3) In the first embodiment, the driving force generator 9 generates the driving force for converting the tongue rails 4a and 4b by the fluid pressure of the working fluid. Therefore, the fluid pressure of the working fluid can be used as the driving force for switching the branching device 1, and the switching device 8 can be made simple in structure.

(4) In this first embodiment, the upper surface recess 7a is formed in the upper surface of the composite sleeper. Therefore, a synthetic sleeper made of the same material as that of the front and rear branch sleepers 7A can be used for the branch sleepers 7B. For example, if the branch sleeper 7B is an iron sleeper made of steel or cast iron, or a concrete sleeper made of concrete, the material of which is different from that of the front and rear branch sleepers 7A. The weight may fluctuate and the ride comfort may be reduced. In this embodiment, since the front and rear branch sleepers 7A, 7B are synthetic sleepers made of the same material, the front and rear branch sleepers 7A, 7B have the same rail support state, which prevents the deterioration of riding comfort. be able to. Further, when the rail fastening device for fastening the basic rails 3a, 3b to the branch sleeper 7B is fixed to the branch sleeper 7B by screws, when the branch sleeper 7B is a synthetic sleeper, the rail fastening device can be placed at any position. can be freely fixed by screws.

(5) In the first embodiment, the accommodation device 25 is mounted in the upper recessed portion 7a with the conversion device 8 accommodated therein. Therefore, the existing branch sleeper 107 can be easily replaced in a short time by carrying the branch sleeper 7B into the site with the conversion device 8 built in the branch sleeper 7B.

The conversion device according to the first embodiment of the invention has the following effects.
(1) In the first embodiment, the accommodation device 25 includes the mounting portion 25a mounted in the upper concave portion 7a of the branch sleeper 7B that supports the turnout 1. As shown in FIG. For this reason, when replacing the branch sleeper 7B or when replacing or inspecting the conversion device 8, the conversion device 8 can be easily detached from the branch sleeper 7B together with the storage device 25, and replacement work and inspection work can be performed. workability is improved, and replacement work and inspection work can be carried out in a short time.

(2) In the first embodiment, the accommodation device 25 is mounted in the recess 7a on the upper surface between the left and right basic rails 3a and 3b of the branch sleeper 7B. For this reason, the conversion device 8 can be built in the branch sleeper 7B, and the places where the ballast cannot be inserted or compacted can be eliminated, and maintenance work can be labor-saving. Further, the conversion device 8 can be accommodated inside the track, and the conversion device 8 can be easily replaced when it breaks down or during maintenance.

(3) In the first embodiment, the driving force generator 9 generates the driving force for converting the tongue rails 4a and 4b. Therefore, the driving force generator 9 can be arranged between the left and right basic rails 3a and 3b of the branch sleeper 7B, eliminating the need to arrange the point machine 108 of the conventional turnout 101 outside the track. Limited space on orbit can be effectively utilized.

(4) In the first embodiment, the driving force generator 9 generates the driving force by the hydraulic pressure of the working fluid. Therefore, the fluid pressure of the working fluid can be used as the driving force for switching the branching device 1, and the switching device 8 can be made simple in structure.

(5) In the first embodiment, the driving force generator 9 is controlled by the controller 24 so that the contact force when the tongue rails 4a and 4b contact the basic rails 3a and 3b is within the range of the criterion _Th2 . controls. Therefore, the tongue rails 4a, 4b can be brought into close contact with the basic rails 3a, 3b so that no gaps are formed between the tongue rails 4a, 4b and the basic rails 3a, 3b. can greatly improve the performance.

(6) In the first embodiment, the insulating portion 17 electrically insulates between the turnout 1 and the driving force generating portion 9 . Therefore, it is possible to prevent the right and left rails from being energized through the driving force generator 9, thereby preventing the track circuit for detecting the presence or absence of a train from being electrically short-circuited even though there is no train. can be prevented. Also, with a small space between the tongue rails 4a, 4b and the cylinder portion 10, the left and right rails can be reliably insulated.

(7) In the first embodiment, the connection portions 13A and 13B connect the turnout 1 and the driving force generating portion 9, and the connecting portion 14 on the side of the turnout 1 and the connecting portion on the side of the driving force generating portion 9 15 are connected by fitting each other. Further, in the first embodiment, a predetermined gap is formed between the connecting portion 14 on the side of the turnout 1 and the connecting portion 15 on the side of the driving force generating portion 9, and the connecting portion 14 on the side of the turnout 1 It is rotatably connected to the connecting portion 15 on the driving force generating portion 9 side. Therefore, the tongue rails 4a, 4b and the conversion device 8 can be reliably connected with a small space between the tongue rails 4a, 4b and the cylinder portion 10.例文帳に追加Further, when the tongue rails 4a and 4b are switched, a force can be applied to the tongue rails 4a and 4b from the cylinder portion 10 in the sleeper length direction, and the driving force generating portion 9 can apply force to the tongue rails 4a and 4b in the rail length direction. Almost no force can be applied to 4a, 4b. Further, it is possible to prevent a bending moment from acting between the driving force generating portion 9 and the tongue rails 4a and 4b. Furthermore, in the structure shown in FIG. 17 in which the connecting plate 114a and the connecting plate 114b are connected by the fastening member 116B, a shearing force acts on the rolling pin bolt 116a when the tongue rail 104a is pulled. In this first embodiment, the connecting portion 14 and the connecting portion 15 are connected by fitting to each other, and are not connected by a fastening member 116B such as a cross bar bolt 116a. The connecting portion 14 is connected to the turnout 1 only by the fastening portion 16 . Therefore, when the driving force generating part 9 pulls the turnout 1, the connecting part 15 on the driving force generating part 9 side exerts a pulling force F ₂ in substantially the same direction as the length direction of the fastening part 16 . As a result, when the switching device 8 switches the turnout ₁ , only the tensile force F2 acts on the fastening portion 16 and almost no shearing force acts on the fastening portion 16, so that the fastening portion 16 can be prevented from breaking. . In addition, compared to the structure in which the connecting plate 114a and the connecting plate 114b are connected by the fastening member 116B shown in FIG. It can be assembled and disassembled in a short time.

(8) In the first embodiment, the locking mechanism 12 locks after the tongue rails 4a and 4b are converted. Therefore, the tongue rails 4a and 4b can be fixed (locked) at predetermined positions, and the tongue rails 4a and 4b can be kept in close contact with the basic rails 3a and 3b.

(9) In the first embodiment, when the tongue rails 4a and 4b are switched, the lock mechanism portion 12 causes the working fluid to flow between the cylinder tube 10a and the piston 10b of the driving force generating portion 9, thereby A gap Δ ₃ is formed. Further, in the first embodiment, when the tongue rails 4a and 4b are locked, the lock mechanism 12 stops the working fluid from flowing between the cylinder tube 10a and the piston 10b to bring them into close contact with each other. Therefore, the branching device 1 can be easily locked (locked) and unlocked (unlocked) using the fluid pressure of the working fluid.

(Second embodiment)
1 and 2 are denoted by the same reference numerals, and detailed description thereof will be omitted.
14 and 15 have the same structure as the conversion device 8 shown in FIGS. 1 to 6, and are arranged in plurality in the rail length direction of the turnout 1 at intervals. The switching devices 8A-8D switch the tongue rails 4a, 4b respectively at the installation positions of the switching devices 8A-8D.

The conversion device according to the second embodiment of the present invention has the following effects in addition to the effects of the first embodiment.
In this second embodiment, a plurality of conversion devices 8A to 8D are arranged at intervals in the rail length direction of the turnout 1. As shown in FIG. As a result, since the turnout 1 is converted by a plurality of conversion devices 8A to 8D, the turnout 1 with a large degree of branching (the number of the turnout 1) and relatively long tongue rails 4a and 4b is ensured. can be converted to In addition, since the turnout 1 is converted by a plurality of conversion devices 8A to 8D, the stay rods connecting the left and right tongue rails 4a, 4b are not required to reduce the sideways movement of the tongue rails 4a, 4b. The structure of the turnout 1 is simplified, and the installation work and inspection work of the turnout 1 can be easily carried out. As a result, ballast can be inserted and compacted at all positions of the turnout 1 . Furthermore, since the positions of the tongue rails 4a and 4b are controlled by the controllers 24 of the plurality of conversion devices 8A to 8D, the linearity of the tongue rails 4a and 4b can be maintained and managed, and the branched position can be compared to the first embodiment. The traveling safety and maintainability of the device 1 can be further improved.

(Other embodiments)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible as described below, which are also within the scope of the present invention.
(1) In this embodiment, the case where the turnout 1 is a single-sided turnout has been described as an example, but the turnout is not limited to a single-sided turnout. For example, the present invention can be applied to a double turnout, an inner turnout, an outer turnout, a distribution turnout, a three-branch turnout, a double turnout, a three-wire turnout, or a movable nose turnout. . Further, in this embodiment, the branching device 1 is described as an example of the branching device, but the branching device is not limited to the branching device 1 . For example, the present invention can be applied to a movable crossing such as a movable nose crossing, a movable wing crossing or a movable blunt crossing, a movable diamond crossing having a movable K-shaped crossing, a turnout such as a single slip switch or a double slip switch. can do. Furthermore, in this embodiment, fixed rails such as the basic rails 3a and 3b and movable rails such as the tongue rails 4a and 4b have been described as examples. The present invention can also be applied to the movable rail of the part.

(2) In this embodiment, the driving force generator 9 is a hydraulic cylinder. The present invention can also be applied to the generator. In this embodiment, the case where the lock mechanism 12 is driven by a fluid pressure circuit different from the fluid pressure circuit 11 of the driving force generator 9 has been described as an example. The present invention can also be applied to the case where the working fluid from the circuit 11 is boosted by a pressure booster to drive the lock mechanism portion 12 . Furthermore, in this embodiment, the case where the entire housing device 25 is a housing that seals the conversion devices 8, 8A to 8D has been described as an example. The present invention can also be applied to a case where part of the storage device 25 is a frame and the rest is a housing. For example, the present invention can be applied to the case where only the upper portion of the housing device 25 is covered with a plate member.

1 Turnout (turnout devices)
2 point part 3a, 3b basic rail (fixed rail)
4a, 4b tongue rail (movable rail)
7A, 7B branch sleeper 8, 8A to 8D conversion device 9 driving force generation unit 10 cylinder unit 10a cylinder tube 10b piston 10c, 10d piston rod 11 fluid pressure circuit 12 lock mechanism unit 13A, 13B connection unit 14 connection unit (turnout joint on the similar side)
14c fitting recess 1dd pressing force receiving portion 14e tensile force receiving portion 15 connecting portion (connecting portion on the driving force generating portion side)
15b Fitting convex portion 15c Pressing force application portion 15d Tensile force application portion 16 Fastening portion 17 Insulation portion 18 Position detection portion 19 Load detection portion 20 Information storage portion 24 Control portion 25 Storage device W Wheels D ₁ , D ₂ directions C ₁ , _C2 cylinder chamber _Δ1 , _{Δ2 , Δ3} clearance F1 pressing force _F2 pulling force
Th ₁ normal stop position (predetermined position)
Th ₂ normal adhesion (predetermined range)

Claims (9)

A branch sleeper supporting a turnout,
An upper surface recess for mounting a housing device housing a conversion device for converting the turnouts,
The conversion device is
a driving force generator for generating a driving force for converting the movable rails of the turnouts by the fluid pressure of the working fluid;
A lock mechanism that locks the movable rail after conversion,
The upper surface recess is formed between left and right fixed rails of the turnouts,
A branch sleeper characterized by: In the branch sleeper according to claim 1,
The upper surface recess is formed on the upper surface of the synthetic sleeper;
A branch sleeper characterized by: In the branch sleeper according to claim 1 or claim 2 ,
The accommodation device is attached to the upper surface recess while the conversion device is accommodated in the accommodation device;
A branch sleeper characterized by: A conversion device that converts a turnout or the like while being housed in a housing device,
a driving force generator for generating a driving force for converting the movable rails of the turnouts by the fluid pressure of the working fluid;
A lock mechanism that locks the movable rail after conversion,
The accommodation device comprises a mounting portion mounted in an upper surface recess between left and right fixed rails of the branch sleeper that supports the turnout .
A conversion device characterized by: 5. The conversion device of claim 4 , wherein
comprising a control unit that controls the driving force generation unit so that the contact force when the movable rail comes into close contact with the fixed rail is within a predetermined range;
A conversion device characterized by: A conversion device according to claim 4 or claim 5 ,
comprising an insulating portion that electrically insulates between the turnouts and the driving force generating portion;
A conversion device characterized by: A conversion device according to any one of claims 4 to 6 ,
A connecting portion that connects the turnouts and the driving force generating portion,
The connecting part is
a connecting portion on the side of the turnout;
a connecting portion on the side of the drive force generating portion that is connected by fitting with the connecting portion on the side of the turnout;
A predetermined gap is formed between the connecting portion on the side of the turnout and the connecting portion on the side of the driving force generating portion, and the connecting portion on the side of the turnout and the connecting portion on the side of the driving force generating portion are separated. is rotatably connected,
A conversion device characterized by: A conversion device according to any one of claims 4 to 7 ,
The lock mechanism section
when the movable rail is switched, a working fluid is caused to flow between the cylinder tube and the piston of the driving force generating unit to form a gap therebetween;
when the movable rail is locked, stopping the inflow of the working fluid between the cylinder tube and the piston to bring them into close contact;
A conversion device characterized by: A conversion device according to any one of claims 4 to 8 ,
A plurality of turnouts are arranged at intervals in the rail length direction,
A conversion device characterized by:

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