JP5232049B2 - A method for increasing the conversion holding force of the conversion lock device and a mechanism for increasing the conversion holding force of the conversion lock device. - Google Patents

Description

  The present invention relates to a method for increasing the conversion holding force of an electric switch having a side line indexing function, for example, a YS type electric switch, and the conversion holding force of the conversion lock The enhancement mechanism.

  The YS type electric switch is an electric switch that is used in combination with a conversion lock (YS type) and a circuit controller (YS type) and is used for conversion of points other than the main line. Backward indexing is possible. The electric switch is a conversion device, and includes a conversion mechanism, a speed reduction mechanism, and an induction motor. The conversion mechanism changes the point by moving the crank by a conversion roller and a cam fixed to the conversion gear. Further, the convertible lock device (YS type) is a lock device, and the circuit controller (YS type) is a close-contact checking device.

FIG. 1 is a diagram showing an installation example of a YS type electric turning machine (hereinafter referred to as an electric turning machine) having a backward indexing function.
In FIG. 1, on a sorting line or side line in a yard other than the main line, a convertible lock 3 is installed on the sleeper 2 between the basic rails 1a and 1b, and the sleeper overhangs to one side of the rails 1a and 1b. An electric switch 4 is installed on the overhanging portion 2. One Tongler 7a is connected to the first crank 5a of the Y-type crank 5 of the convertible lock 3 via the first link 6a, and the second crank 5b of the Y-type crank 5 is connected via the second link 6b. And connected to the other Tongleil 7b. The arm 8 is connected via an offset link 9 to the crank 10 of the electric rolling machine 4 or an operating rod that moves linearly.

  In addition, the electric switch provided with the operation rod which moves linearly is described in Patent Document 1, for example. The crank 10 of the electric switch 4 is connected to one end of the offset link 9 via a scull jaw, and the arm 8 of the switch lock 3 is connected to the other end of the offset link 9 with a pin.

  By the way, the electric switch 4 turns 60 degrees around the crankshaft at the time of conversion to give a normal stroke (200 mm stroke) to the offset link 9, and the Y-type crank 5 of the conversion lock 3 is It is designed to hold the position turned 90 ° in response to the stroke (200 mm) and to lock the point in place or in reverse, but in reality the holding force at the time of locking is not necessarily sufficient. There was an indication.

If the holding force at the time of locking is weak, the point cannot be held in the fixed position or the inverted position, and the turning angle of the Y-shaped crank 5 of the conversion lock device 3 is shifted, which causes a lock failure.
FIG. 2 shows a conventional convertible lock mechanism incorporated in the convertible lock device 3. In FIG. 2, the Y-shaped crank 5 is a spring built in the body of the convertible lock 3 (hereinafter, this spring will be described as a main spring unit 11 for the convenience of matching the configuration and description of the present invention. Is connected to an auxiliary spring unit separately from the main spring unit 11) and is always biased in one direction (the direction of the stereotactic locking) during the stationary locking, The Y-shaped crank 5 is biased in the reverse direction by changing the direction around the pivot axis of the main spring unit 11.

  Therefore, when the holding force of the fixed or inverted lock is insufficient, it is possible to cope with the main spring unit 11 by using a spring having a large spring constant. However, increasing the spring force can be changed accordingly. In addition, when the manual handle is handled by handling the hand turning handle, the hand turning handle is suddenly turned by the reaction at the time of conversion, which is extremely dangerous.

Application specification and drawing of Japanese Patent Application No. 2007-84459

Japan Railroad Electrical Engineering Association "Tipper Device" May 10, 1992 P39-P47 Talking about the power switch, Signal Security Association of Japan 1969 P95-100

  The problem to be solved can be solved by using a main spring unit having a large spring force connected to the Y-type crank when the holding force of the fixed or inverted lock is insufficient. However, the use of a spring with a large spring force for the main spring unit increases the load on the electric turning machine at the time of conversion, and when the handwheel handle is used for manual operation, a large force is required for conversion. However, when you try to turn the steering wheel forcibly, the steering wheel will be accelerated during the turn and will turn rapidly, causing a very dangerous situation.

  In the present invention, in addition to the main spring unit, an auxiliary spring unit that urges the Y-type crank at a position immediately before the normalization or reverse movement is added, and the Y-type crank is pressed in the normalization or reverse direction. The main feature is to increase the change holding force at the time of the conversion lock without increasing the spring force of the spring unit.

  According to the present invention, when the point is changed from the normal position to the inverted position or from the inverted position to the fixed position, immediately after the start of conversion and immediately before the end of conversion, the Y-type crank is subjected to the pressing force of the main spring unit. Because the pressing force is applied and the Y-shaped crank is pushed in the direction of change, at the end of conversion, the conversion holding force of the conversion lock that holds the point in the fixed position or the inverted position is enhanced, and the train traffic on the side line is made safer. be able to.

It is a top view which shows the relationship between an electric switch and a conversion lock device. It is a figure which shows the structure of the dead center arrangement | sequence of a Y-shaped crank and a link. (A) is a plan view of a convertible lock device incorporating the conversion holding force enhancing mechanism according to the present invention, (b) is a sectional side view, (c) is a sectional front view, and (d) is an auxiliary spring unit. It is a cross-sectional side view. It is a figure which shows the relationship between the shape of a cam surface, and a roller. (A)-(e) is a figure which shows the relationship between the turning angle of a Y-shaped crank, and a cam, when changing a point from a fixed position to a reverse position. It is a graph which shows the difference in the case of a main spring unit only, and the case where an auxiliary spring unit is combined with a main spring unit. A graph showing a comparison of measured values of motor current of an electric switch for the conversion force of the main spring unit only (conventional type) and the conversion force when the auxiliary spring unit is combined with the main spring unit (improved type) It is.

  The purpose of the main switch unit is to increase the holding force of the convertible lock that holds the point in place or upside down without increasing the spring force of the main spring unit built in the convertible lock. This was realized by combining an auxiliary spring unit incorporated separately from the spring unit and a cam mechanism.

  According to the present invention, the spring force of the main spring unit is applied to the Y-shaped crank to urge it in the orientation or inversion direction according to the direction of change, and further the spring force of the auxiliary spring unit immediately before the end of the orientation or inversion change. Is applied to generate a holding force for holding the point in a normal position or an inverted position.

  Examples of the present invention will be described below. In FIG. 1, on a sorting line or side line in a yard other than the main line, a conversion lock 3 incorporating the conversion lock mechanism according to the present invention is installed on the sleeper 2 between the basic rails 1a and 1b. An electric switch 4 is installed on the overhanging portion of the sleeper 2 that protrudes to one side of 1a and 1b. The above configuration is the same as the conventional one. Hereinafter, the same components as those in the conventional art will be described with the same reference numerals. FIG. 3 shows the structure of the convertible lock mechanism incorporating the convertive holding power enhancing mechanism according to the present invention.

  3 (a) to 3 (c), the first link 6a is connected to the first crank 5a of the Y-shaped crank 5 of the convertible lock 3 and the second crank 5b of the Y-shaped crank 5 is the second crank 5b. The link 6b is connected. The arm 8 is the same as the conventional convertible lock device in that the offset link 9 is connected. The Y-shaped crank 5 and the arm 8 are coaxially fixed to the crankshaft 5d supported by the body 3a of the convertible lock 3 and are attached to a retaining rod 5e inserted into the third crank 5c of the Y-shaped crank. The bifurcated portion 11b of the guide lot 11a of the main spring unit 11 is attached.

  The main spring unit 11 includes a guide lot 11a, a main spring 11c, and a bottomed shaft cylinder 11d. The main spring 11c is accommodated in the bottomed shaft cylinder 11d. It is rotatably attached to a support shaft 11e supported on the central axis YY of 3a (see FIG. 3 (a)). The main spring 11c is supported by the bottom of the shaft cylinder 11d and urges the first link 6a or the second link 6b through the bifurcated portion 11b of the guide lot 11a, and the Y-shaped crank 5 is rotated by 0 ° about the crankshaft 5d. The point which is turned in the range of ˜90 ° and converted to the normal position or the inverted position is held at the conversion position.

  That is, the main spring unit 11 has a boundary (center line YY of the body) connecting the axis of the crankshaft 5d of the Y-shaped crank 5 and the axis of the support shaft 11e of the shaft cylinder 11d as a boundary. The Y-shaped crank 5 is urged in the direction of inclination when it is tilted in one direction beyond the line, and the tongrel 7b is pressed against the basic rail 1b by the spring force, or the tongrel 7a is pushed to the basic rail. It is a force that presses against 1a and holds the point in a localized or inverted position.

  In the present invention, the force for holding the point in the fixed position or the inverted position is used for the main spring unit, and the force for holding the point in the fixed position or the inverted position by using the auxiliary spring unit without using a spring having a large spring force. It is to secure.

  In addition to the main spring unit 11, the conversion lock mechanism according to the present invention incorporates a cam mechanism and a pair of auxiliary spring units 12R and 12L. The cam mechanism is a combination of the cam 13 and the roller 14. As shown in FIG. 4, the cam 13 is formed by an arcuate curved surface, and protrudes in the vicinity of both left and right ends by drawing a gentle curve following the arcuate curved surface (cam surface) 13a. This is an arc-shaped block having a cam surface on which middle and high convex portions 13R and 13L are formed. The cam 13 is arranged over the entire stroke range (turning angle 0 ° to 90 °) of the third crank 5c of the Y-type crank 11. It is pivotally supported around a pivot pin 13c on the central axis YY of the vessel 3a.

  The auxiliary spring units 12R and 12L are installed at both ends of the cam 13 so as to face the surface opposite to the cam surface 13a and in parallel with the central axis YY of the body 3a, as shown in FIG. ), A holder 12a attached to the body 3a as shown as a right auxiliary spring unit 12R, a rod 12b slidably held in a linear direction along the holder 12a, and an auxiliary spring packaged on the rod 12b The pressing member 12 d at the tip of the rod 12 b is connected to the cam 13.

  The auxiliary spring 12c urges the rod 12b, and a pressing member 12d at the tip urges the cam toward the Y-shaped crank 5 side. Accordingly, the right auxiliary spring unit 12R is installed facing the right end of the cam 13, and the left auxiliary spring unit 12L is installed facing the left end of the cam 13. The body 3a is held in a bilaterally symmetric posture about the central axis YY.

  The roller 14 is supported by a third crank 5c of the Y-shaped crank 5 and a stopper rod 5e that is coaxially attached to the forked portion 11b of the guide rod 11a constituting the main spring unit 11, and is brought into pressure contact with the front cam surface. . In the conventional convertible lock mechanism, the retaining rod 5e is simply attached coaxially to the third crank 5c of the Y-shaped crank 5 and the forked portion 11b of the guide rod 11a constituting the main spring unit 11. However, in the present invention, since it is used as a mounting shaft for the roller 14, a stopper rod having a longer length than the conventional one is used, and in order to increase its holding strength, the Y-type crank is parallel to the third crank 5c. The bracket 15 is extended to the bottom, and the retaining rod 5e is supported by the third arm 5c and the bracket 15.

  In the above structure, the pair of auxiliary spring units 12R and 12L presses both ends of the cam 13 with the same force, and holds the cam 13 in a symmetric posture with respect to the central axis YY of the body 3a. In the state where the position is in the fixed position or the inverted position, the Y-shaped crank 5 receives the pressing force from the main spring unit 11 and presses the Tongleil against one of the basic rails to hold the point in the fixed position (or inverted position). When the roller 14 passes over the convex portion 13R (or 13L) of the cam 13 and passes over the convex portion, the roller 14 is guided to the inclined surface of the convex portion and further guided in the turning direction, and the roller is turned along the cam surface. Even if it tries to return to the position side (or the localization side), this functions as a stopper and cannot return due to the repulsive force of the auxiliary spring. The combination of the auxiliary spring units 12R, 12L and the cam mechanism acts as a point holding force by pressing the Tongrel toward the basic rail, and compensates for the lack of the conversion holding force due to the main spring unit 11 alone.

  In the present invention, the Y-type crank is turned 90 ° by driving an electric turning machine to change the point from the normal position to the reverse position, or conversely, from the reverse position to the reverse position. The spring force is applied to the Y-shaped crank over the range of the rotation angle of the Y-shaped crank from 0 ° to 45 ° and 45 ° to 90 °, and is added to the spring force of the main spring unit immediately before the position change or reversal. Thus, the spring force necessary for the localization or inversion change holding is increased, and during the conversion, the spring force of the main spring unit is applied in a direction to reduce.

  FIG. 5 is a diagram showing an operation procedure of the Y-shaped crank and the cam when the point is changed from the normal position to the reverse position. FIG. 5A shows a state in which the roller 14 is at the right end of the cam 13, that is, a state in which the point is in a fixed position (a state where the turning angle of the Y-shaped crank is 0 °).

  When the point is in the stereotaxic position, the first and second auxiliary spring units 12R and 12L are in close contact with the force that pushes the Y-shaped crank 5 in the stereotaxic direction via the cam 13 (the tongler 7b is in close contact with the basic rail 1b. Acting as direction force). In order to change the point from the normal position to the reverse direction, the electric turning machine starts operation, and in the illustrated example, when the offset link 9 is pushed in the direction of the arrow, the arm 8 turns around the crankshaft 5d. Then, the Y-shaped crank 5 is rotated together.

  When the Y-shaped crank 5 rotates in the direction of the arrow, the first link 6a connected to the first crank 5a pushes the Tongler 7a toward the basic rail 1a, and the second link 6b connected to the second crank 5b Is separated from the basic rail 1b (see FIG. 1).

  On the other hand, the third crank 5c rotates integrally with the first and second cranks 5a and 5b, and rotates and compresses the main spring unit 11 around the support shaft 11e, and at the same time, the roller 14 in contact with the cam 13 is camped. Is moved along the cam surface from one end (right end) of the head, and as shown in FIG. 5 (b), rides on the convex portion 13R projecting in a medium-high shape following an arc-shaped gentle curved surface, and presses the convex portion 13R. The cam 13 is tilted around the pivot pin 13c. This inclination compresses the first auxiliary spring unit 12R, and the roller 14 gets over the convex portion 13R against the repulsive force of the first auxiliary spring unit 12R.

  After the roller 14 gets over the convex portion 13R of the cam surface, the roller 14 rolls along the gentle arc-shaped cam surface, and is supported by the auxiliary spring units 12R and 12L to roll on the arc-shaped gentle curved surface. Is turned 45 ° from the center axis YY of the container shown in FIG. 5C. At this time, the main spring unit 11 is located on the central axis YY of the container, and the amount of compression becomes the largest.

  When the roller 14 exceeds the position on the central axis YY of the container shown in FIG. 5C, the repulsive force of the main spring unit 11 urges the Y-shaped crank 5 in the rolling direction indicated by the arrow thereafter. It acts positively in the direction, pushes the first link 6a, pulls the second link 6b, and changes the point from stereo to inversion. FIG. 5D shows a state in which the rotation of the Y-shaped crank 5 has advanced and the roller 14 has reached the position of the other middle-high convex portion 13 </ b> L of the cam 13.

  When the roller 14 rides on the convex portion 13L, the cam 13 is tilted to the right-down position in the drawing around the pivot pin 13c, and the second auxiliary spring unit 12L is pressed and contracted, so that the repulsive force of the second auxiliary spring unit 12L When the Y-shaped crank turns 90 ° from the beginning, it reaches the other end (left end in the figure) of the cam 13 as shown in FIG. Point conversion is completed. On the contrary, when the point changes from the inverted position to the fixed position, the projecting edge portion receives the repulsive force of the first auxiliary spring unit through the order of FIGS. 5 (e), (d), (c), and (b). As shown in FIG. 5A, it reaches one end (right end in the figure) of the cam and stabilizes, and the conversion of the point to the home position is completed.

  Therefore, after the point is changed to the fixed position or the inverted position, the auxiliary spring unit acts as a holding force after the changed position or inverted position, and the roller 14 gets over the convex portion 13R or 13L of the cam 13 to thereby move the auxiliary spring. The unit is stably supported in a fixed position or an inverted position while being pressurized.

  In the position of the stationary lock, the axis C of the crankshaft of the Y-shaped crank, the connection point B between the second crank and the second link, and the connection point A between the second link and the tongrel are on one straight line. Although it becomes a dead center arrangement (see FIG. 2), according to the present invention, the spring force of the auxiliary spring unit is added to the spring force of the main spring unit. The holding force at the connection point B is improved. The same is true when the point is locked in the opposite position.

  FIG. 6 is a diagram conceptually showing the relationship between the conversion force and the stroke of the YS type electric turning machine. As shown in curve F, the turning force of the electric switch is generally the stroke (0 to 200 mm) of the moving rod at the time of changing the position or turning the position, 0 ° at the start of turning of the Y-type crank, or at the end of the conversion. It is designed so that the maximum conversion force can be exhibited at 90 °.

  In the figure, S1 represents the resistance force due to the main spring unit alone, and M represents the resistance force when the auxiliary spring unit is combined with the main spring unit. As is clear from FIG. 6, when the auxiliary spring unit is combined with the main spring unit, the resistance force f becomes maximum immediately before the end of conversion, and the conversion holding force is increased by the rising height h from the curve of S1. I understand that I can do it.

  In the curve of M, the reason why the resistance decreases when the conversion is completed is because the roller has passed over the convex portion of the cam. Even after the roller has passed over the convex portion of the cam, the main spring unit is biased by the auxiliary spring unit, and a force to further rotate the Y-shaped crank in the same direction acts to increase the conversion holding force. In the drawing, a curve indicated as S2 indicates a curve when the spring force of the main spring unit is increased to correspond. As is apparent from the figure, when the spring force of the main spring unit is increased, a large burden is placed on the electric switch.

FIG. 7 shows the motor current of the electric switch at the time of conversion with respect to the conversion force (conventional type) using only the main spring unit and the conversion force when the auxiliary spring unit is combined with the main spring unit. It is a figure which shows a change. In addition, FIG. 7 also shows the current at the time of start-up and the current during conversion at the time of conversion from the localization (N) to the inversion (R), or conversely from the inversion (R) to the localization (N). The maximum value is also shown.
Table 1 shows that the conventional type and the improved type are converted at the time of conversion from stereotax (N) to inversion (R), and at the time of conversion from inversion (R) to stereotax (N). The comparison of the value of the motor current in is shown.

  According to FIG. 7 and Table 1, the improved version is immediately after the start of conversion at the time of conversion from stereotaxy (N) to inversion (R), or conversely from conversion of inversion (R) to stereotaxy (N). Immediately before the end of conversion, the current value of the motor current increases compared to the conventional type, and the resistance required to maintain the conversion at the time of localization or reversal conversion is obtained. It can be seen that when the current value is small and therefore the improved type, the force required for the conversion is small.

  The present invention increases the holding power of the electric turning machine having the function of indexing the side line using the YS type electric turning machine and the side lock indexing function. Can be increased.

DESCRIPTION OF SYMBOLS 1a, 1b Basic rail 2 Sleeper 3 Conversion lock 3a Body 4 Electric switch 5 Y type crank 5a 1st crank 5b 2nd crank 5c 3rd crank 5d Crankshaft 5e Stop rod 6a 1st link 6b 2nd Link 7a, 7b Tongue rail 8 Arm 9 Offset link 10 Crank 11 Main spring unit 11a Guide lot 11b Two-pronged portion 11c Main spring 11d Shaft 11e Support shaft 12R, 12L Auxiliary spring unit 12a Holder 12b Rod 12c Auxiliary spring 12d Presser 13 Cam 13a Cam surface 13R, 13L Convex part 13c Pivot pin 14 Roller 15 Bracket

Claims (7)

The main spring unit and auxiliary spring unit are attached to the Y-type crank that turns by receiving the power of the electric turning machine and presses the Tongrel against the basic rail or pulls it away from the basic rail to change the position to the fixed or inverted position. A method of combining and enhancing the conversion holding power of the conversion chain lock device,
A spring force of the main spring unit is applied to the Y-shaped crank to urge it in the orientation or inversion direction according to the direction of change, and the spring force of the auxiliary spring unit is further applied immediately before the end of the orientation or inversion change. A method for enhancing the conversion holding force of the conversion locker, characterized by generating a holding force for holding the point in a fixed position or an inverted position.   2. The conversion according to claim 1, wherein after the point is changed to a fixed position or an inverted position, the spring force of the auxiliary spring unit is applied to the Y-type crank, and one of the tonglers is urged against the basic rail. A method for increasing the conversion holding power of the lock device. A conversion holding force enhancing mechanism for a conversion lock having a Y-shaped crank incorporated in the conversion lock as a conversion lock, a main spring unit, an auxiliary spring unit, and a cam mechanism,
The Y-type crank turns by receiving the power of the electric turning machine and presses the Tongrel against the basic rail or pulls it away from the basic rail to change the point to a fixed position or an inverted position.
The main spring unit is swingably supported on the central axis of the body of the convertible lock device, and applies a spring force to the Y-shaped crank when tilted in one direction beyond the central axis of the body. , And urge the point toward the direction to convert to the position or inversion,
The auxiliary spring unit urges the Y-type crank together with the main spring unit at a position immediately before the point is changed to the normal position or the reverse position.
The cam mechanism is characterized in that the holding force is increased by applying the spring force of the auxiliary spring unit in the direction of change of the Y-shaped crank after the point is changed to the normal position or the reverse position. A mechanism to increase the conversion holding power of the vessel. The first and second cranks of the Y-shaped crank are each connected to a link connecting with the Tongrel, and the third crank is connected to the main spring unit,
The cam mechanism is a combination of a cam and a roller,
The roller is attached to the third crank of the Y-shaped crank, and is moved along the cam surface according to the rotational displacement of the Y-shaped crank.
The cam has an arcuate cam surface that guides the roller, and is a block that is swingably supported on the central axis of the container, and both ends thereof are supported by the auxiliary spring unit,
A part of the cam surface has a convex part, and the convex part is a part of a part of the arc-shaped cam surface that rises in a middle-high shape. When the roller gets over, the spring force of the auxiliary spring unit 4 is applied to the Y-type crank, and after the roller gets over, the spring force of the auxiliary spring unit is applied to the Y-type crank in the conversion direction. Conversion holding power enhancement mechanism. The convex portion is formed on the inner side at a certain distance from both ends of the arcuate cam surface,
5. The convertible lock device according to claim 4, wherein the auxiliary spring unit is supported on both sides of the central axis of the container body and applies a spring force to both end positions of the cam. The conversion holding power enhancement mechanism. The Y-shaped crank is turned 90 ° by driving an electric turning machine to change the point from stereotaxic to inverted, or vice versa.
The auxiliary spring unit applies the spring force to the Y-shaped crank over a range of rotation angles of 0 ° to 45 ° and 45 ° to 90 ° of the Y-shaped crank, and the main spring immediately before the position change or reversal change. It is added to the spring force of the unit to reinforce the spring force required for holding or reversing the position, and during the change, the spring force of the main spring unit is acted in the direction of decreasing. 6. A conversion holding force increasing mechanism for a conversion chain lock device according to claim 5.   7. The conversion according to claim 6, wherein the convex portions formed at both ends of the cam surface function as a stopper for preventing the reverse rotation of the Y-shaped crank after the point is changed to a fixed position or an inverted position. A mechanism to increase the conversion holding force of the lock device.