JP4937002B2 - Point lock control method for an electric switch using a conversion locker and stroke adjustment mechanism of an offset link in the electric switch - Google Patents

Description

  The present invention relates to a point lock control method and an offset link stroke adjustment mechanism in an electric switch having a side-line indexing function using a convertible lock, for example, a YS type electric switch.

  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. FIG. 5 shows the installation state of the YS type electric switch. 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.

In FIG. 5, the convertible lock device 30 includes a Y-shaped crank 31 and an insulating link 32, and the Y-shaped crank 31 is held by a spring at a position rotated by 90 °. The Y-shaped crank 31, the arm 33 mounted on the same axis, and the crank 35 of the electric switch 34 are connected by an offset link 36.
The offset link 36 transmits the movement of the crank 35 of the electric switch 34 to the arm 33 of the diverting lock device. The arm 33 rotates the coaxial Y-shaped crank 31 in the left or right direction so as to move to the basic rail. The direction of the tongrels 38a and 38b is changed with respect to 37a and 37b, and the point is changed from the orientation to the inversion or from the inversion to the orientation.

  What is important here is that, after the conversion is completed, the center points of the elbow and crank pin holes A and B and the center C point of the crankshaft are in a straight line, forming a dead center in the direction perpendicular to the Tongrel, Is to secure.

  By the way, the crank 35 of the conventional electric switch 34 is rotated by 60 ° around the crankshaft at the time of conversion to give a regular stroke (200 mm stroke) to the offset link 36, and the Y-shape of the conversion lock 30 is provided. The crank 31 is rotated 90 ° in response to this stroke (200 mm), and is designed to lock the point in a fixed position or an inverted position, but the length of the arm 33 of the conversion lock 30 is manufactured. Due to errors and manufacturing errors of the crank 35 of the electric switch 34, the turning angle of the Y-shaped crank 31 of the convertible lock device 30 may be displaced. That is, the Y-shaped crank 31 may not be completely pressed against the stopper of the convertible lock device 30 (see the stoppers 20a and 20b in FIG. 4).

  In such a case, when the Y-shaped crank 31 of the conversion lock 30 is changed from the normal position to the inverted position by giving a normal stroke of 200 mm to the offset link, the elbow metal and the crank pin hole centers A and B As a result, there is a problem in that it is not possible to secure an opposing lock at the time of reversal.

  Incidentally, the length of the offset link 36 of the YS type electric switch is adjustable, but this is based on the distance between the electric switch 34 and the conversion lock 30. For adjusting the length, a mechanism is provided for adjusting the shift when the rotation angle of the Y-shaped crank of the convertible lock is shifted with respect to the regular stroke received from the electric switch 34. Not.

  For this reason, even if the offset link 36 is moved by the regular stroke of the electric switch 34, the Y-shaped crank 31 of the conversion lock 30 is rotated at a regular angle to lock the point in a fixed position or an inverted position. There is no guarantee that it can. Conventionally, when such a problem has occurred, the length of the offset link 31 has been finely adjusted so that the Y-shaped crank 31 is positioned between the normal position and the reverse position. There is a possibility that the Y-shaped crank 31 does not completely hit the stopper or that the rotation angle is too large to adversely affect the electric machine.

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 is that even if the length of the offset link is changed, the problem cannot be solved when there is a problem with the opposed lock.

  In the point lock control method and the offset link stroke adjustment mechanism in the electric switch according to the present invention, after securing the point fixed lock, the turning angle of the conversion locker is changed during the point change. Even if there is a slight deviation, the most important feature is that the error can be absorbed and the inverted lock can be secured.

  According to the point lock control method and the offset link stroke adjustment mechanism in the electric switch according to the present invention, it is assumed that the turning angle of the Y-shaped crank of the conversion lock device is slightly deviated from the normal turning angle of 60 °. Therefore, it is possible to absorb the deviation and securely perform the reverse locking, and therefore, the length of the arm of the electric switch, the conversion locker, the electric switch crank, or the conversion locker. Even if there is a deviation in the turning angle of the Y-shaped crank of the convertible lock device due to the manufacturing error, it is possible to reliably perform the positioning and reversal locking.

  Even if there is a slight deviation in the turning angle of the Y-shaped crank of the conversion locker at the time of point conversion, the purpose of absorbing the error and ensuring the reverse lock will be It was realized by absorbing the change in the vertical direction.

  In the present invention, when the Y-type crank of the conversion lock is turned by the stroke generated in the electric switch and the point is changed from the normal position to the reverse position, the opposite lock failure due to the deviation of the Y-type crank rotation It is a lock control method of the point which compensates. In the present invention, the stroke is made variable over a certain range in a state where the spring pressure is applied to the offset link connecting the electric switch and the conversion lock, and the point is changed from the fixed position to the inverted position to face each other. The stroke difference necessary for locking is absorbed within the variable range of the offset link stroke. In order to prevent the opposite locking due to the shift of the turning angle of the Y-shaped crank, the offset link was pulled toward the machine at the point positioning position, and the Tongrel was secured in the positioning position. If adjusted in the state, the opposite side can be locked without adjustment.

  FIG. 1 is a diagram showing an installation example of an electric turning machine (hereinafter referred to as an electric turning machine) having a backward indexing function according to the present invention. The relationship between the electric switch and the convertible lock device is the same as the relationship between the electric switch and the convertible lock device in FIG. 5 shown as the conventional example, but in this embodiment, As will be described later, an electric rod that uses a linear feed instead of a crank that rotates at a constant angle is used for the electric switch.

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. Te is connected to the other of the door Ngureru 7b. The arm 8 is connected to an operating rod 10 of the electric switch 4 via an offset link 9.

  In the electric switch used in this embodiment, an operating rod 10 is used which is moved and fed in a linear direction by a linear feed mechanism (not shown) incorporated in the electric switch 4. For example, Japanese Patent Application Laid-Open No. H10-228707 discloses an electric switch equipped with an operating rod that moves linearly.

  The stroke adjustment mechanism of the offset link according to the present invention is not limited to the case where it is applied to a YS type electric turning machine provided with an operating rod that moves linearly as shown in FIG. 1, but the turning angle of 60 ° shown in FIG. It can be applied to a YS type electric turning machine equipped with an arm that turns around. In the YS type electric switch equipped with a moving rod that moves linearly, the moving rod moves linearly by a linear feed mechanism (not shown) incorporated in the electric roller and transmits the stroke to the offset link 9. On the other hand, in a YS type electric turning machine having a crank that turns at a turning angle of 60 °, a linear stroke is transmitted to the offset link 9 by the turning of the crank at 60 °. In either case, the first crank 5a and the second crank 5b of the convertible lock 3 rotate together, and the tongrels 7a and 7b are driven to the left or the left through the first link 6a and the second link 6b. Is done by doing.

In this embodiment, a skew jaw 11 is provided at one end of the offset link 9. The operating rod 10 of the electric switch 4 is connected to one end of the offset link 9 via the scull jaw 11, and the arm 8 of the switch lock 3 is connected to the other end of the offset link 9 with a pin. The scull jaw 11 makes the effective length of the stroke of the offset link 9 variable over a certain range and, as will be described later, within the movable range of the operating rod 10 of the electric switch 4 or the stroke of the crank, The second crank of the Y-type crank that rotates integrally with the arm 8 is brought into contact with the stopper, and the spring force is applied within the range of the operating rod 10 of the electric switch 4 or the stroke limit of the crank to secure the lock. It is .

  FIG. 2 shows the structure of the scull jaw 11. In FIG. 2, the skew jaw 11 includes a combination of a jaw body 12, a sleeve 13, a coil spring 14, and a lock nut 15. The jaw body 12 is a cylindrical sheath having one end opened, and has a bifurcated portion 16 for connecting the operating rod 10 at the other end.

  The coil spring 14 is housed in the shaft hole 12 a of the jaw body 12 and is supported between the inner end of the shaft hole of the jaw body 12 and the tip of the sleeve 13. The sleeve 13 adjusts the effective length of the stroke of the offset link 9. The sleeve 13 has a flange 13 a at the outer end, and is screwed into a screw portion 9 a formed at one end of the offset link 9. It is inserted in the opening side of the hole 12a. An annular groove 13b having a fixed length is formed on the circumference of the sleeve 13, and a roller 17 supported in the shaft hole of the jaw body 12 is engaged in the annular groove 13b. The shaft can be rotated in the shaft hole of the jaw main body 12 and can be moved back and forth in the shaft hole of the jaw main body 12 within the range of the length defined by the clearance δ of the annular groove 13b. The effective length of the stroke of the offset link 9 is variable within the range.

  The sleeve 13 has a circular groove 13c in addition to the annular groove 13b, and the retaining groove 18 inserted from the outer periphery of the jaw body 12 with the axial gap δ secured in the circular groove 13c. The escape of the sleeve 13 from the main body 12 is prevented. The sleeve 13 receives the repulsive force of the coil spring 14, and the gap 13 a and the opening edge of the jaw main body 12 are kept at a distance δ regulated by the gap δ. The lock nut 15 is screwed into a threaded portion 9 a at one end of the offset link 9, and is further fastened to the slope 13 d at the outer end of the sleeve 13 by a wedge action, thereby integrally coupling the sleeve 13 to the offset link 9. .

  In addition, an operating rod 10 of an electric switch is inserted into the bifurcated portion 16 and is connected to the jaw body 12 by a pin 19. As a result, when the point is locked in place, the offset link 9 is pulled by the operating rod 10 so that the elbow metal and the crankpin hole centers A and B and the center C of the crankshaft as shown in the enlarged view of FIG. A dead center is formed in a straight line and perpendicular to the Tongrel 7a to secure the opposite lock. Further, the sleeve 13 is pressed to the conversion lock device side by receiving the pressing force of the coil spring 14, and the sleeve 13 is engaged between the scull jaw main body 12 and the collar 13a of the sleeve 13 or the roller 17 so as to be in the annular groove 13b. A gap δ having a fixed length is formed in the gap, and a constant interval δ having the same length as the gap δ is maintained between the flange 13a and the opening edge of the jaw body 12.

The operation of the offset link stroke adjusting mechanism in the electric switch according to the present invention will be described below. 4 (a) to 4 (d), the structure of the scull jaw is schematically shown, and the first crank 5a, the second crank 5b of the Y-shaped crank 5 of the convertible lock 3 and the first to connect between the tonglers. The second link is not shown. A normal stroke SL (200 mm) predetermined for the operation rod 10 of the electric switch 4, and a gap δ (鍔 13 a in the annular groove 13 b engaged with the roller 17, and the opening edge of the jaw main body 12. The interval δ) is (3 mm).
In FIG. 4A, the arm 8 of the convertible lock 3 connected to the offset link 9 in a state where the operating rod 10 of the electric switch 4 is maintained at the fixed position is the electric switch 4 side. The first crank 5a of the Y-shaped crank 5 is crimped to the stopper 20a on the localization side. In a state where the first crank 5a of the Y-shaped crank 5 is pressure-bonded to the stopper 20a on the stereotaxic side, the point is opposed and locked in a stereotaxic manner as described above.

  At the point localization position, the offset link 9 is pulled to the electric rolling machine 4 side as described above. As a result, the roller 17 is pressed against the upper right end (electric switch) of the annular groove 13b in FIG. The first crank 5a of the Y-shaped crank 5 is pushed to the positioning stopper 20a at the end of the feed of the regular stroke 200 mm of the operating rod 10 and the tongue 5a is pressed against the stationary stopper 20a. The rails are locked against each other in a fixed position.

  When the operating rod 10 of the electric switch 4 is moved to the reverse side based on the point change command, the scull jaw 11 receives the pressing force of the operating rod 10 and pushes the offset link 9 in the reverse direction. The arm 8 moves and turns around the center C of the crankshaft of the convertible lock 3 to the reverse side.

  FIG. 4B shows that when the maximum stroke δ is smaller than the normal stroke SL (200 mm) of the operation rod 10 of the electric switch, that is, when it reaches 197 mm, the Y-type crank 5 turns 90 °, The 2 crank 5b is shown in a state where it is pressed by the coil spring 14 and is in contact with the reverse side stopper 20b.

FIG. 4 (c) shows the stroke of the operation lever 10 of the electric rolling iron machine SL-[delta] from (197 mm) of regular stroke SL (200 mm) approached the middle state. As the stroke of the operating rod 10 of the electric switch approaches the regular stroke 200 mm, the second crank 5b receives resistance from the stopper 20b, the coil spring 14 of the scull jaw 11 is compressed, and the second crank 5b In response to the compressive force, it is further strongly pressed against the stopper 20b. Tongue rail by the second crank 5b is completely pressed against the second stopper 20b is opposed locking counter-position side.

  FIG. 4 (d) shows a state in which the tongrel has finished the conversion from the normal position to the reverse position. When the conversion of the tongue rail is completed, the roller that drives the operation rod 10 of the electric switch 4 is released from the cam plate (both not shown), and the restriction of the operation rod 10 is released. It is pushed back in response to the restoring force of the spring 14.

  Actual problems include displacement of the electrical switch and convertible lock, or manufacturing error of the electrical switch's crank, Y-type crank or arm length of the convertible, etc. According to experience, the deviation of the turning angle of the Y-shaped crank 5 of the conversion lock 3, that is, the deviation of the stroke of the offset link 9 is within a range of 3 mm according to experience. . Therefore, the stroke of the offset link 9 is shifted by setting the gap (gap between the flange 13a and the jaw main body 12) δ set between the annular groove 13b of the skew jaw and the roller 17 to a maximum of 3 mm. As shown in FIGS. 4C to 4D, the operating rod 10 is finally set to the spring pressure of the coil spring 14 (110 kg in the embodiment) as the second crank of the Y-type crank 5 as shown in FIGS. By acting on 5b, the inverted lock can be secured, and the error of the turning angle of the Y-shaped crank 5 caused by the manufacturing error of the Y-shaped crank 5 can be kept within the stroke range of the gap δ.

  The present invention includes an offset link driven by an operating rod that moves back and forth in the linear direction of an electric switch having a side line indexing function using a convertible lock device, including a YS type electric switch. Can be widely applied to dynamic motion.

The relationship between the electric tipping machine to which this invention is applied, and a conversion lock device is shown, (a) is a top view, (b) is a front view. The structure of a scull jaw is shown, (a) is a sectional side view, (b) is a plan view, and (c) is a front view. It is a figure which shows the structure of the dead center arrangement | sequence of a Y-shaped crank and a link. (A)-(d) is a figure which shows the operation | movement at the time of point change. The relationship between a normal electric switch and a convertible lock is shown in which (a) is a plan view and (b) is a front view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b Basic rail 2 Sleeper 3 Conversion lock 4 Electric switch 5 Y type crank 5a 1st crank 5b 2nd crank 6a 1st link 6b 2nd link 7a, 7b Tongue rail 8 Arm 9 Offset link 9a Screw Part 10 Operating rod 11 Skull jaw 12 Jaw body 12a Shaft hole 13 Sleeve 13a rod 13b Annular groove 13c Circular groove 13d Slope 14 Coil spring 15 Lock nut 16 Fork 17 Stopper 19 Pin 20a Stopper 20b on the opposite side Stopper

Claims (4)

When the Y-type crank of the conversion lock is turned by the stroke generated in the electric switch, and the point is changed from the normal position to the inverted position, the counter-locking failure due to the shift angle of the Y-type crank is compensated. A point lock control method,
With the spring pressure applied to the offset link that connects between the electric switch and the conversion locker, the effective length of the stroke is variable over a certain range , and the offset link Y-type crank by pulling to the machine side, changing the point from fixed position to inverted position while securing the opposite lock at the fixed position, and applying spring pressure within the variable range of offset link stroke A method for controlling a point lock of an electric switch using a convertible lock device , which absorbs a shift of the turning angle of the lock and secures an inverted lock. This is a mechanism for adjusting the offset link of an electric switch that has a skew jaw on a part of the offset link that connects the operation rod or crank of the switch that generates the stroke of point conversion and the arm of the switch lock. There,
The skull jaw has a combination of a jaw body, a sleeve, a spring, and a lock nut,
The jaw body is a cylindrical sheath having one end opened, and the other end is connected to an operating rod or a crank of the electric switch,
The sleeve is inserted into a shaft hole of the jaw main body in a state of being screwed into a thread portion formed at one end of the offset link, and can move forward and backward with respect to the jaw main body within a certain length. Combined,
The spring is built in the shaft hole of the jaw body, and biases the offset link in a direction away from the jaw body,
Between the jaw body and the sleeve, a gap that allows the sleeve to advance and retract is formed over a range of a certain length,
The gap is a variable effective length of the stroke of the offset link over a certain range,
The lock nut is screwed into a threaded portion at one end of an offset link, and is tightened to the outer end of the sleeve to integrally couple the sleeve to the offset link. Offset link stroke adjustment mechanism in the machine . An annular groove having a fixed length is formed on the circumference of the sleeve, and a roller supported in a shaft hole of the jaw body is engaged in the annular groove, whereby the sleeve is formed on the jaw body. 3. The electric switch according to claim 2 , wherein the electric switch is capable of rotating in the shaft hole and being supported so as to be capable of moving back and forth within the shaft hole of the jaw body within the range of the length of the annular groove. Offset link stroke adjustment mechanism in the machine . The sleeve has a flange at an outer end, and is biased by the coil spring.
4. The electric switch according to claim 3 , wherein the flange and the opening edge of the jaw main body are maintained at an interval regulated by a range of a length of the annular groove . 5. Offset link stroke adjustment mechanism.