Suspended single-rail turnout crank connecting rod device

Abstract

The present invention discloses a suspension single-track switch crank connecting rod device, belonging to the technical field of suspension single-track switches. The suspension single-track switch crank connecting rod device includes a power push rod, a special-shaped crank, a top pull rod, and a modified rail correction assembly. A power input crank arm, a correction crank arm, and a turnout crank arm are arranged on the handle body of the special-shaped crank. The power input crank arm is hinged to the linear execution end of the power push rod. The turnout crank arm is connected to the movable rail. The correction crank arm is hinged to the power input end of the modified rail correction assembly through the top pull rod. The power output end of the modified rail correction assembly is connected to two modified rails. The modified rail correction assembly corrects the angles of the two modified rails by pulling the correction crank arm. By arranging a special-shaped crank that can rotate along the switch beam in the turnout in the embodiment of the present invention, one set of power sources is reduced, the installation space of the turnout is saved, the risk of turnout failure is reduced, and the reliability of the system is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of suspended single-rail switches, and particularly relates to a crank and connecting rod device for a suspended single-rail switch. Background Art

[0002] In a suspended monorail railway switch, a movable rail, a compensating rail, and a correcting rail are usually provided. Among them, the movable rail is the rail used for track switching, the compensating rail is the rail used to compensate for the gap between the movable rail and the switch to improve the continuity of the running surface, and the correcting rail is the rail used to correct the running surface to further improve the continuity of the running surface.

[0003] In the related art, three sets of power sources are respectively used to drive the corresponding tracks separately to achieve the predetermined actions of the tracks, that is, one set of power source is used to drive the rotation, one set of power source is used to drive the correcting rail to generate a small angular displacement, and one set of power source is used to drive the compensating rail to flip.

[0004] Since all three sets of power sources need to be arranged on the switch beam, which occupies a large space, it is difficult to arrange the yard. Moreover, if one of the three sets of power sources fails, the entire switch will fail, reducing the reliability of the switch operation. Summary of the Invention

[0005] An embodiment of the present invention provides a crank and connecting rod device for a suspended single-rail switch to solve the problems in the related art that two different power sources are required to drive the movable rail to switch and the correcting rail to correct respectively, resulting in a large occupied space of the device and low reliability of the switch operation. The technical solution is as follows:

[0006] A crank and connecting rod device for a suspended single-rail switch includes a switch beam, a movable rail arranged in the switch beam along the axis of the switch beam, and two correcting rails arranged on both sides in front of the movable rail. The crank and connecting rod device for a suspended single-rail switch is characterized in that it further includes a power push rod, a special-shaped crank, a top pull rod, and a correcting rail correction assembly;

[0007] The special-shaped crank is connected to the switch beam through a crank rotating shaft. A power input crank arm, a correcting crank arm, and a switching crank arm are arranged on the handle body of the special-shaped crank. The power input crank arm and the correcting crank arm are located at the first end of the special-shaped crank, and the switching crank arm is located at the second end of the special-shaped crank;

[0008] The power input crank arm is hinged to the linear execution end of the power push rod, and the switching crank arm is connected to the movable rail;

[0009] The corrected crank arm is hinged to the power input end of the corrected rail correction assembly through the top pull rod. The power output end of the corrected rail correction assembly is connected to the two corrected rails. The corrected rail correction assembly corrects the angles of the two corrected rails by pulling the corrected crank arm.

[0010] Optionally, the power push rod is fixedly installed on the switch beam through a power push rod seat.

[0011] Optionally, the corrected rail correction assembly includes a driving rotating shaft, two vertical connecting rods, two crank arms and two horizontal connecting rods. The driving rotating shaft is fixedly installed on the switch beam through a driving rotating shaft bearing seat; a pull rod crank arm and two linkage crank arms are arranged on the driving rotating shaft. The two linkage crank arms are arranged at both ends of the driving rotating shaft. The pull rod crank arm, as the power input end of the corrected rail correction assembly, is connected to the corrected crank arm through the top pull rod. The two linkage crank arms are respectively hinged to the first ends of the two crank arms through the two vertical connecting rods. The second ends of the two crank arms are respectively connected to the corrected rails through the two horizontal connecting rods. The included angle between the first end and the second end of each of the two crank arms is 90°.

[0012] Optionally, the suspended single-track switch crank-link device further includes a driving roller and a movable rail guide groove; the movable rail guide groove is fixedly arranged above one side of the movable rail close to the special-shaped crank. One end of the driving roller is connected to the switch crank arm, and the other end of the driving roller is inserted into the movable rail guide groove. When the switch crank arm rotates, the driving roller moves in the movable rail guide groove.

[0013] Optionally, the power push rod is an electric push rod or a hydraulic cylinder linear drive unit.

[0014] Optionally, the structure of the special-shaped crank is Y-shaped or T-shaped.

[0015] Optionally, the suspended single-track switch crank-link device further includes a controller, and the controller is used to control the power push rod to perform linear reciprocating motion according to the received suspended single-track switch signal.

[0016] The technical solution provided by the embodiment of the present application can at least bring the following beneficial effects:

[0017] In an embodiment of the present invention, the hanging single-rail switch crank-link mechanism includes a power push rod, a special-shaped crank, a top pull rod, and a modified rail correction assembly. The special-shaped crank is connected to the switch beam through a crank rotating shaft. A power input crank arm, a correction crank arm, and a switch crank arm are arranged on the handle body of the special-shaped crank. The power input crank arm and the correction crank arm are located at the first end of the special-shaped crank arm, and the switch crank arm is located at the second end of the special-shaped crank arm. The power input crank arm is hinged to the linear execution end of the power push rod, and the switch crank arm is connected to the movable rail; the correction crank arm is hinged to the power input end of the modified rail correction assembly through the top pull rod, and the power output end of the modified rail correction assembly is connected to two modified rails. The modified rail correction assembly corrects the angles of the two modified rails by pulling the correction crank arm. That is to say, in the embodiment of the present invention, by arranging a special-shaped crank that can rotate along the switch beam in the switch, the power of the power source is divided into the power for driving the switch of the movable rail and the power for driving the correction of the modified rail, and the correction of the modified rail can be completed synchronously when the movable rail switches. Since one set of power source is reduced, on the one hand, the installation space of the switch can be saved, and the space utilization rate can be improved. On the other hand, the number of motors and control system components is reduced, the risk of switch failure is reduced, and the reliability of the system is improved. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a perspective view of a hanging single-rail switch crank-link mechanism provided by an embodiment of the present invention;

[0020] Figure 2 is a perspective view of the structure of a special-shaped crank in a hanging single-rail switch crank-link mechanism provided by an embodiment of the present invention;

[0021] Figure 3 is a working schematic diagram of a hanging single-rail switch crank-link mechanism provided by an embodiment of the present invention.

[0022] Reference Numerals:

[0023] 1: Power push rod; 2: Special-shaped crank; 3: Top pull rod; 4: Modified rail correction assembly; 5: Modified rail; 6: Driving roller; 7: Movable rail guide groove; 8: Movable rail; 9: Controller;

[0024] 101: Power push rod seat; 201: Crank return shaft; 202: Power input crank arm; 203: Correction crank arm; 204: Switching crank arm; 401: Driving rotating shaft; 402: Vertical connecting rod; 403: Toggle arm; 404: Horizontal connecting rod; 405: Driving rotating shaft bearing seat; 406: Pull rod crank arm; 407: Linkage crank arm. Detailed implementation mode

[0025] To make the objectives, technical solutions and advantages of the present invention clearer, the following will further describe the embodiments of the present invention in detail with reference to the accompanying drawings.

[0026] Figure 1 is a perspective view of a suspension single-rail switch crank and connecting rod device provided by an embodiment of the present invention. Refer to Figure 1 A suspension single-rail switch crank and connecting rod device includes a switch beam, a movable rail 8 arranged in the switch beam along the axis of the switch beam, and two correction rails 5 arranged on both sides in front of the movable rail 8. It is characterized in that the suspension single-rail switch crank and connecting rod device further includes a power push rod 1, a special-shaped crank 2, a top pull rod 3 and a correction rail correction assembly 4;

[0027] The special-shaped crank 2 is connected to the switch beam through a crank return shaft 201. A power input crank arm 202, a correction crank arm 203 and a switching crank arm 204 are arranged on the handle body of the special-shaped crank 2. The power input crank arm 202 and the correction crank arm 203 are located at the first end of the special-shaped crank 2, and the switching crank arm 204 is located at the second end of the special-shaped crank 2;

[0028] The power input crank arm 202 is hinged to the linear execution end of the power push rod 1, and the switching crank arm 204 is connected to the movable rail 8;

[0029] The correction crank arm 203 is hinged to the power input end of the correction rail correction assembly 4 through the top pull rod 3. The power output end of the correction rail correction assembly 4 is connected to the two correction rails 5. The correction rail correction assembly 4 corrects the angles of the two correction rails 5 by pulling the correction crank arm 203.

[0030] Among them, the switch beam is a beam body in the suspension single-rail switch for supporting the switch and vehicle switching. The switch beam is a beam body with a lower opening. The main body of the switch beam is composed of a single-rail beam and a double-rail beam. The switch beam is a prior art and will not be elaborated in the embodiments of the present invention, nor does it appear in the drawings. The movable rail 8 is arranged in the single-rail beam parallel to the switch beam and one end is connected to the intersection of the double-rail beam. The two correction rails 5 are symmetrically arranged at one end of the movable rail 8 away from the intersection of the double-rail beam. The correction rail 5 is a plate-shaped structure. The correction rail 5 is parallel to the switch beam and perpendicular to the movable rail 8. The correction rail 5 can be flipped by a certain angle on the plane to further improve the continuity of the running surface.

[0031] Among them, the special-shaped crank 2 is a device that branches the power source into two sub-powers. A circular through-hole is provided in the middle of the special-shaped crank 2, and the crank rotating shaft 201 passes through the circular through-hole to movably connect the special-shaped crank 2 and the switch beam. The movably connected special-shaped crank 2 can rotate around the crank rotating shaft 201. The power input crank arm 202 and the correction crank arm 203 of the special-shaped crank 2 are located at the first end of the special-shaped crank 2, and the switch crank arm 204 is located at the second end of the special-shaped crank 2. Specifically, the structure of the special-shaped crank 2 is Y-shaped or T-shaped. The power input crank arm 202 and the correction crank arm 203 of the special-shaped crank 2 are located at the upper end of the Y-shaped or T-shaped special-shaped crank 2, and the switch crank arm 204 is located at the lower end of the Y-shaped or T-shaped special-shaped crank 2.

[0032] It should be noted that the switch crank arm 204 can be directly connected to the movable rail 8 by means of hinge, or can be movably connected to the movable rail 8 by means of rollers and guide grooves. As long as it is ensured that when the special-shaped crank 2 rotates around the crank rotating shaft 201, the switch crank arm 204 drives the movable rail 8 to switch, the embodiments of the present invention do not make specific limitations on this.

[0033] In a possible implementation manner, as Figure 2 shown, the suspended single-track switch crank-link device further includes a driving roller 6 and a movable rail guide groove 7; the movable rail guide groove 7 is fixedly arranged above one side of the movable rail 8 close to the special-shaped crank 2. One end of the driving roller 6 is connected to the switch crank arm 204, and the other end of the driving roller 6 is inserted into the movable rail guide groove 7. When the switch crank arm 204 rotates, the driving roller 6 can move in the movable rail guide groove 7. That is to say, the movable rail guide groove 7 is fixedly arranged above one side of the movable rail 8 close to the special-shaped crank 2 by means of welding or threaded connection. One end of the driving roller 6 is connected to the switch crank arm 204, and the other end is inserted into the movable rail guide groove 7. When the special-shaped crank 2 rotates around the crank rotating shaft 201 under the drive of the power push rod 1, the switch crank arm 204 rotates synchronously to drive the driving roller 6 to move in the movable rail guide groove 7, and the moving driving roller 6 further drives the movable rail 8 to swing left and right.

[0034] Among them, the power push rod 1 is the power source of the suspended single-track switch crank-link device. The power push rod 1 is an electric push rod or a hydraulic cylinder linear drive unit. The embodiments of the present invention do not make specific limitations on the type of the power push rod 1. The linear execution end of the power push rod 1 is hinged to the power input crank arm 202. The power push rod 1 can be directly fixedly installed on the switch beam, or can be fixedly installed on the switch beam through the power push rod seat. In a specific embodiment, the suspended single-track switch crank-link device further includes a power push rod seat 101. The power push rod seat 101 is fixedly installed on the switch beam, and the power push rod 1 is connected to the power push rod seat 101 through a pin shaft.

[0035] Among them, the correction rail correction component 4 is a device that, when the special-shaped crank 2 rotates, converts the linear reciprocating motion in the horizontal direction into a linear reciprocating motion in the vertical direction and then converts it into a device that controls the correction rail 5 to flip at a fixed angle on the horizontal plane. The correction rail correction component 4 can convert the direction of force through a multi-link mechanism or through a rotating shaft + multi-link mechanism.

[0036] In a possible implementation, the correction rail correction component 4 includes a driving rotating shaft 401, two vertical connecting rods 402, two crank arms 403, and two horizontal connecting rods 404. The driving rotating shaft 401 is fixedly installed on the turnout beam through a driving rotating shaft bearing seat 405; a pull rod crank arm 406 and two linkage crank arms 407 are arranged on the driving rotating shaft 401. The two linkage crank arms 407 are arranged at both ends of the driving rotating shaft 401. The pull rod crank arm 406 serves as the power input end of the correction rail correction component 4 and is connected to the correction crank arm 203 through the top pull rod 3. The two linkage crank arms 407 are respectively hinged to the first ends of the two crank arms 403 through the two vertical connecting rods 402. The second ends of the two crank arms 403 are respectively connected to the correction rail 5 through the two horizontal connecting rods 404. The included angle between the first end and the second end of the two crank arms 403 is 90°.

[0037] It should be noted that in the correction rail correction component 4, the driving rotating shaft 401 is a device that converts the force in the horizontal direction into the force in the vertical direction. A pull rod crank arm 406 and two linkage crank arms 407 are arranged on the driving rotating shaft 401. The pull rod crank arm 406 is connected to the correction crank arm 203 through the top pull rod 3 and makes a swinging motion in the horizontal direction. The two linkage crank arms 407 are respectively connected to the two vertical connecting rods 402. When the top pull rod 3 makes a horizontal movement, the two vertical connecting rods 402 make a vertical movement. The included angle between the first end and the second end of the crank arm 403 is 90°. When the first end of the crank arm 403 is pulled by the vertical connecting rod 402 to make a vertical movement, the second end of the crank arm 403 drives the horizontal connecting rod 404 to make a horizontal flipping movement, thereby realizing the flipping movement of the two correction rails 5.

[0038] In addition, to precisely control the operation of the power push rod 1, the suspension single-rail switch crank and connecting rod device further includes a controller 9. The controller 9 is used to control the power push rod 1 to perform linear reciprocating motion according to the received suspension single-rail switch signal. The controller 9 can be separately arranged outside the power push rod 1 and control the movement of the power push rod 1 through electrical connection, or can be integrated inside the power push rod 1 to save the space of the device. The controller 9 can receive the suspension single-rail switch control signal in a wired manner, or can receive the suspension single-rail switch control signal through an integrated communication module by means of wireless communication such as WIFI, Bluetooth, 4G, 5G signals, etc. The controller 9 can also determine whether the power push rod 1 is pushed out or retracted in place by obtaining the movement duration of the power push rod 1, obtaining the thrust value of the power push rod 1, etc. When the controller 9 receives the switch signal, it synchronously controls the movement of the power push rod 1 to achieve actions such as the switch of the movable rail and the angle correction of the two correction rails 5.

[0039] When the embodiment of the present invention is working, the controller obtains the control signal and controls the power push rod to perform linear reciprocating motion according to the control signal. When the power push rod performs a linear elongation action, it pushes the special-shaped crank to rotate around the crank return shaft. The switch crank arm drives the driving roller to move in the movable rail guide groove, so that the movable rail rotates, and then the switch is switched; at the same time, the correction crank arm of the special-shaped crank drives the driving rotating shaft to drive the vertical connecting rod and the crank arm to move through the connection of the top pull rod, and then drives the two transverse connecting rods to push the correction rails to act synchronously through the two crank arms respectively, so that the correction rails generate a small-angle displacement to correct the running surface and meet the continuous need of the vehicle running surface.

[0040] That is to say, in the embodiment of the present invention, by arranging a special-shaped crank that can rotate along the switch beam in the switch, the power of the power source can be divided into the power for driving the switch of the movable rail and the power for driving the correction of the correction rail, and the correction of the correction rail can be completed synchronously when the movable rail is switched. Since a set of power source is reduced, on the one hand, the installation space of the switch can be saved and the space utilization rate can be improved. On the other hand, the number of motors and control system components is reduced, the risk of switch failure is reduced, and the reliability of the system is improved.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A suspension single-track turnout crank connecting rod device, comprising a turnout beam, a movable rail (8) arranged in the turnout beam along the axis of the turnout beam, and two correction rails (5) arranged on both sides in front of the movable rail (8), characterized in that, The hanging single-rail switch crank and connecting rod device further includes a power push rod (1), a special-shaped crank (2), a top pull rod (3), and a modified rail correction assembly (4); The special-shaped crank (2) is connected to the switch beam through a crank rotating shaft (201). A power input crank arm (202), a correction crank arm (203), and a switch crank arm (204) are arranged on the handle body of the special-shaped crank (2). The power input crank arm (202) and the correction crank arm (203) are located at the first end of the special-shaped crank (2), and the switch crank arm (204) is located at the second end of the special-shaped crank (2); The power input crank arm (202) is hinged to the linear execution end of the power push rod (1), and the switch crank arm (204) is connected to the movable rail (8); The correction crank arm (203) is hinged to the power input end of the modified rail correction assembly (4) through the top pull rod (3). The power output end of the modified rail correction assembly (4) is connected to the two modified rails (5). The modified rail correction assembly (4) corrects the angles of the two modified rails (5) by pulling through the correction crank arm (203).

2. The hanging single-track turnout crank connecting rod device according to claim 1, characterized in that, The power push rod (1) is fixedly installed on the switch beam through a power push rod seat (101).

3. The hanging single-rail switch crank connecting rod device according to claim 1, characterized in that, The modified rail correction assembly (4) includes a driving rotating shaft (401), two vertical connecting rods (402), two crank arms (403), and two horizontal connecting rods (404). The driving rotating shaft (401) is fixedly installed on the switch beam through a driving rotating shaft (401) bearing seat; A pull rod crank arm (406) and two linkage crank arms (407) are arranged on the driving rotating shaft (401). The two linkage crank arms (407) are arranged at both ends of the driving rotating shaft (401). The pull rod crank arm (406) serves as the power input end of the modified rail correction assembly (4) and is connected to the correction crank arm (203) through the top pull rod (3). The two linkage crank arms (407) are respectively hinged to the first ends of the two crank arms (403) through the two vertical connecting rods (402). The second ends of the two crank arms (403) are respectively connected to the modified rail (5) through the two horizontal connecting rods (404). The included angle between the first end and the second end of the two crank arms (403) is 90°.

4. A suspension single-track turnout crank connecting rod device according to claim 1, characterized in that, The hanging single-rail switch crank and connecting rod device further includes a driving roller (6) and a movable rail guide groove (7); The movable rail guide groove (7) is fixedly arranged above the side of the movable rail (8) close to the special-shaped crank (2). One end of the driving roller (6) is connected to the switch crank arm (204), and the other end of the driving roller (6) is inserted into the movable rail guide groove (7). When the switch crank arm (204) rotates, the driving roller (6) moves in the movable rail guide groove (7).

5. The hanging single-rail turnout crank connecting rod device according to any one of claims 1-4, characterized in that, The power push rod (1) is an electric push rod or a hydraulic cylinder linear drive unit.

6. The hanging single-rail turnout crank connecting rod device according to any one of claims 1-4, characterized in that, The structure of the special-shaped crank (2) is Y-shaped or T-shaped.

7. The hanging single-rail switch crank connecting rod device according to any one of claims 1-4, characterized in that, The hanging single-rail turnout crank connecting rod device further includes a controller (9), and the controller (9) is used to control the power push rod (1) to perform a linear reciprocating motion according to the received hanging single-rail turnout switching signal.

Images