Suspension single-track switch movable rail lifting device and suspension single-track switch

Abstract

The present invention discloses a lifting device for a movable rail of a suspended single turnout and a suspended single turnout, belonging to the technical field of suspended rail railways. The lifting device for the movable rail of the suspended single turnout comprises a lifting crank assembly, a lifting chute assembly, a power push rod, a turnout lifting cross beam and a rotating shaft lifting plate. During the operation of the device, when the electric push rod pushes the power crank arm, the first crank arm group and the second crank arm group rotate synchronously and respectively drive the sliding of the lifting chute assembly through the first pull rod group and the second pull rod group, so as to lift and lower the turnout lifting cross beam and the rotating shaft lifting plate, and drive the movable rail to lift and lower. When the device lowers the movable rail and the vehicle passes through the turnout, since the pressure exerted by the vehicle on the movable rail is all transferred to the two groups of lifting chute assemblies, the pressure on the power push rod is eliminated, thereby prolonging the service life of the power push rod and enhancing the reliability of the suspended single turnout.

Description

Technical Field

[0001] The invention belongs to the technical field of suspended monorail railways, and particularly relates to a movable rail lifting device for a suspended single turnout and a suspended single turnout. Background Art

[0002] Currently, the turnouts of suspended monorail railways usually adopt a lifting switch technology solution. In this solution, the turnout includes a turnout beam, a movable rail arranged in the turnout beam, a lifting device and a switch device connected to the movable rail. When the vehicle changes lines or makes way, the lifting device first lifts the movable rail to a certain height, and then the switch device drives the movable rail to switch through a power component. After the switching is in place, the lifting device presses down the movable rail.

[0003] In the related art, the lifting device is composed of four groups of four-bar link mechanisms, a cross link, an electric push rod and a movable rail lifting plate. Four corners of the cross link are respectively connected to the four groups of four-bar link mechanisms, and the four groups of four-bar link mechanisms are respectively connected to both ends of the movable rail. The electric push rod is arranged inside the cross link and drives the cross link to drive the four-bar link mechanism to move, realizing the lifting and pressing down actions of the movable rail.

[0004] However, in this technology, when the movable rail falls, since the downward pressure of the movable rail is completely provided by the electric push rod, the electric push rod is in a state of being continuously stressed in the downward pressure state. As a result, when the vehicle passes through the turnout, the vehicle presses down the movable rail and transfers the vehicle gravity load to the electric push rod. Therefore, the electric push rod in this technology is overstressed, which seriously affects the reliability of the electric push rod and the turnout during long-term use. Summary of the Invention

[0005] Embodiments of the invention provide a movable rail lifting device for a suspended single turnout and a suspended single turnout to solve the problem that the reliability of the electric push rod and the turnout of the movable rail lifting device for a suspended single turnout in the related art is seriously affected during long-term use. The technical solutions are as follows:

[0006] In a first aspect, embodiments of the invention provide a movable rail lifting device for a suspended single turnout, including a turnout beam and a movable rail arranged horizontally in the turnout beam along the horizontal direction of the turnout beam, and further including:

[0007] A lifting crank assembly, the lifting crank assembly includes a crank shaft and two bearing seats. The two bearing seats are symmetrically installed on the turnout beam. On the crank shaft, a power crank arm, a first crank arm group and a second crank arm group are sequentially arranged from the axis center to both ends of the shaft. The power crank arm is in the same direction as the two crank arms of the first crank arm group and in the opposite direction to the two crank arms of the second crank arm group. Both ends of the crank shaft are respectively connected to the two bearing seats;

[0008] Lifting chute assembly, the number of the lifting chute assemblies is four and they are grouped in pairs and located above both ends of the movable rail respectively. All four lifting chute assemblies are fixedly installed on the switch beam. The two lifting chute assemblies located at the first end of the movable rail are connected through a first pull rod group and the second crank arm group. The two lifting chute assemblies located at the second end of the movable rail are connected through a second pull rod group and the first crank arm group;

[0009] Power push rod, the power push rod is fixedly installed on the switch beam, and the linear execution end of the power push rod is connected with the power crank arm;

[0010] Switch lifting cross beam, both ends of the switch lifting cross beam are respectively connected with the two lifting chute assemblies located at the first end of the movable rail. The lower part of the switch lifting cross beam is connected with the movable rail. The switch lifting cross beam is lifted and lowered through the synchronous sliding of the two lifting chute assemblies located at the first end of the movable rail;

[0011] Rotating shaft lifting plate, both ends of the rotating shaft lifting plate are respectively connected with the two lifting chute assemblies located at the second end of the movable rail. The rotating shaft lifting plate is connected with the rotating shaft on the second end of the movable rail through a flange. The rotating shaft lifting plate is lifted and lowered through the synchronous sliding of the two lifting chute assemblies located at the second end of the movable rail.

[0012] Optionally, the lifting chute assembly includes a guide seat, a sliding plate and a sliding seat;

[0013] The guide seat is provided with a vertical guide groove and a horizontal guide groove, and the guide seat is fixedly installed on the switch beam;

[0014] The sliding plate is embedded in the horizontal guide groove. The sliding seat is arranged in the sliding plate and moves horizontally along the sliding plate. The sliding seat is provided with a cam chute which is linearly inclined in the horizontal direction.

[0015] Optionally, the groove diameter of the cam chute is larger than the outer diameter of the connection parts of both ends of the switch lifting cross beam and the rotating shaft lifting plate with the lifting chute assembly.

[0016] Optionally, the body of the switch lifting cross beam is a hollow cross beam. Guide blocks and rollers are sequentially arranged from the inside to the outside at both ends of the switch lifting cross beam;

[0017] The guiding blocks at both ends of the switch lifting crossbeam are respectively embedded in the vertical guiding grooves of the guiding seats in the two lifting chute assemblies at the first end of the movable rail. The rollers at both ends of the switch lifting crossbeam respectively pass through the vertical guiding grooves of the guiding seats in the two lifting chute assemblies at the first end of the movable rail and are embedded in the cam chutes of the sliding seats. The rollers at both ends of the switch lifting crossbeam are respectively and movably connected with the two lifting chute assemblies at the first end of the movable rail through end caps.

[0018] Optionally, the movable rail lifting device of the suspended single-track switch further includes a suspension assembly;

[0019] The suspension assembly includes a suspension roller group, a roller connecting plate and a roller base. The suspension roller group is clamped in the hollow crossbeam of the switch lifting crossbeam and moves along the horizontal direction of the switch lifting crossbeam. The roller base is located below the switch lifting crossbeam. The suspension roller group is fixedly connected with the roller base through the roller connecting plate, and the roller base is fixedly connected with the movable rail.

[0020] Optionally, a circular through hole is provided at the center of the plate body of the rotating shaft lifting plate. The rotating shaft lifting plate is sleeved on the rotating shaft at the second end of the movable rail and is connected with the rotating shaft of the movable rail through a flange;

[0021] Guiding blocks and guide wheels are sequentially arranged from inside to outside at both ends of the rotating shaft lifting plate. The guiding blocks at both ends of the rotating shaft lifting plate are respectively embedded in the vertical guiding grooves of the guiding seats in the two lifting chute assemblies at the second end of the movable rail. The guide wheels at both ends of the rotating shaft lifting plate respectively pass through the vertical guiding grooves of the guiding seats in the two lifting chute assemblies at the second end of the movable rail and are embedded in the cam chutes of the sliding seats. The guide wheels at both ends of the rotating shaft lifting plate are respectively and movably connected with the two lifting chute assemblies at the second end of the movable rail through wheel covers.

[0022] Optionally, the movable rail lifting device of the suspended single-track switch further includes a crossbeam assembly and a power push rod base;

[0023] The crossbeam assembly is fixedly installed on the switch beam, the power push rod base is fixedly installed on the crossbeam assembly, and the power push rod is connected with the power push rod base through a pin shaft.

[0024] Optionally, the movable rail lifting device of the suspended single-track switch further includes a locking block and a locking seat;

[0025] The locking block is fixedly installed above the movable rail, the locking seat is fixedly installed below the switch beam, and the locking seat is used to lock the movable rail through the locking block when the movable rail descends.

[0026] Optionally, the movable rail lifting device of the suspended single-track turnout further includes a controller, which is configured to control the power push rod to perform a linear reciprocating motion according to the received suspended single-track turnout switching signal.

[0027] In a second aspect, an embodiment of the present invention further provides a suspended single-track turnout, which includes a movable rail switching device, a compensating rail locking device, and a suspended single-track movable rail lifting device according to any one of the first aspects;

[0028] The movable rail switching device is connected to the movable rail and is configured to switch the movable rail;

[0029] The compensating rail locking device is connected to the lifting crank assembly and is configured to unlock the compensating rail in the suspended single-track turnout when the suspended single-track movable rail lifting device lifts the movable rail, and lock the compensating rail in the suspended single-track turnout when the suspended single-track movable rail lifting device lowers the movable rail.

[0030] The technical solutions provided by the embodiments of the present application can at least bring the following beneficial effects:

[0031] In the embodiment of the present invention, the movable rail lifting device of the suspended single track switch includes a switch beam, a movable rail arranged horizontally in the switch beam along the horizontal direction of the switch beam, and a lifting crank assembly, a lifting chute assembly, a power push rod, a switch lifting cross beam and a rotating shaft lifting plate. Among them, the lifting crank assembly includes a crank shaft and two bearing seats. The two bearing seats are symmetrically installed on the switch beam. On the crank shaft, a power crank arm, a first crank arm group and a second crank arm group are sequentially arranged from the axis center to both ends of the shaft. The power crank arm and the two crank arms of the first crank arm group are in the same direction and opposite to the two crank arms of the second crank arm group. Both ends of the crank shaft are respectively connected to the two bearing seats; the number of the lifting chute assemblies is four, and they are divided into two groups and located above both ends of the movable rail respectively. The four lifting chute assemblies are all fixedly installed on the switch beam. The two lifting chute assemblies located at the first end of the movable rail are connected through a first pull rod group and the second crank arm group. The two lifting chute assemblies located at the second end of the movable rail are connected through a second pull rod group and the first crank arm group; the power push rod is fixedly installed on the switch beam, and the linear execution end of the power push rod is connected to the power crank arm; both ends of the switch lifting cross beam are respectively connected to the two lifting chute assemblies located at the first end of the movable rail, and the lower part of the switch lifting cross beam is connected to the movable rail. The switch lifting cross beam is lifted and lowered through the synchronous sliding of the two lifting chute assemblies located at the first end of the movable rail; both ends of the rotating shaft lifting plate are respectively connected to the two lifting chute assemblies located at the second end of the movable rail. The rotating shaft lifting plate is connected to the rotating shaft located at the second end of the movable rail through a flange. The rotating shaft lifting plate is lifted and lowered through the synchronous sliding of the two lifting chute assemblies located at the second end of the movable rail. That is to say, in the embodiment of the present invention, two groups of lifting chute assemblies are arranged at both ends of the switch beam. When the electric push rod pushes the power crank arm, the first crank arm group and the second crank arm group rotate synchronously and drive the sliding of the lifting chute assemblies respectively through the first pull rod group and the second pull rod group, so as to lift and lower the switch lifting cross beam and the rotating shaft lifting plate, and drive the movable rail to lift and lower. When the device lowers the movable rail and the vehicle passes through the switch, since the pressure exerted by the vehicle on the movable rail is all transferred to the two groups of lifting chute assemblies, the pressure on the power push rod is eliminated, thereby prolonging the service life of the power push rod and enhancing the reliability of the suspended single track switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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 following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0033] Figure 1 is a perspective view of a movable rail lifting device of a suspended single track switch provided by an embodiment of the present invention;

[0034] Figure 2 It is an enlarged detail view of a movable rail lifting device for a suspended single track turnout provided by an embodiment of the present invention Figure Ⅰ ;

[0035] Figure 3 It is an enlarged detail view of a movable rail lifting device for a suspended single track turnout provided by an embodiment of the present invention Figure Ⅱ ;

[0036] Figure 4 It is a three-dimensional view of a switch lifting cross beam provided by an embodiment of the present invention;

[0037] Figure 5 It is a three-dimensional view of a rotating shaft lifting plate provided by an embodiment of the present invention;

[0038] Figure 6 It is a three-dimensional view of a locking device of a movable rail lifting device for a suspended single track turnout provided by an embodiment of the present invention.

[0039] Reference numerals:

[0040] 1: turnout beam; 2: movable rail; 3: lifting chute assembly; 4: switch lifting cross beam; 5: suspension assembly; 6: power push rod; 7: power push rod base; 8: cross beam assembly; 9: first pull rod group; 10: lifting crank assembly; 11: bearing seat; 12: second pull rod group; 13: flange; 14: rotating shaft lifting plate; 15: controller;

[0041] 2-1: locking block; 2-2: locking seat; 3-1: guide seat; 3-2: sliding plate; 3-3: sliding seat; 3-101: horizontal guide groove; 3-102: vertical guide groove; 3-301: cam chute; 4-1: hollow cross beam; 4-2: guide block; 4-3: roller; 4-4: end cover; 5-1: suspension roller group; 5-2: roller connecting plate; 5-3: roller base; 10-1: crank shaft; 10-2: power crank arm; 10-3: first crank arm group; 10-4: second crank arm group; 14-1: plate body of the rotating shaft lifting plate: 14-2: guide block; 14-3: guide wheel; 14-4: wheel cover. Detailed implementation manners

[0042] 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.

[0043] Figure 1 It is a three-dimensional view of a movable rail lifting device for a suspended single track turnout provided by an embodiment of the present invention. Refer to Figure 1, the movable rail lifting device of the suspended single-track switch includes a switch beam 1 and a movable rail 2 arranged horizontally in the switch beam 1 along the horizontal direction of the switch beam 1. The device further includes a lifting crank assembly 10, and the lifting crank assembly 10 includes a crankshaft 10-1 and two bearing seats 11. The two bearing seats 11 are symmetrically installed on the switch beam 1. On the crankshaft 10-1, a power crank arm 10-2, a first crank arm group 10-3, and a second crank arm group 10-4 are sequentially arranged from the axis center to both ends of the shaft. The power crank arm 10-2 and the two crank arms of the first crank arm group 10-3 are in the same direction and opposite to the two crank arms of the second crank arm group 10-4. Both ends of the crankshaft 10-1 are respectively connected to the two bearing seats 11; a lifting chute assembly 3, the number of the lifting chute assemblies 3 is four, and they are grouped in pairs and located above both ends of the movable rail 2 respectively. The four lifting chute assemblies 3 are all fixedly installed on the switch beam 1. The two lifting chute assemblies 3 located at the first end of the movable rail 2 are connected through a first pull rod group 9 and the second crank arm group 10-4. The two lifting chute assemblies 3 located at the second end of the movable rail 2 are connected through a second pull rod group 12 and the first crank arm group 10-3; a power push rod 6, the power push rod 6 is fixedly installed on the switch beam 1, and the linear execution end of the power push rod 6 is connected to the power crank arm 10-2; a switch lifting cross beam 4, both ends of the switch lifting cross beam 4 are respectively connected to the two lifting chute assemblies 3 located at the first end of the movable rail 2, and the lower part of the switch lifting cross beam 4 is connected to the movable rail 2. The switch lifting cross beam 4 is lifted and lowered through the synchronous sliding of the two lifting chute assemblies 3 located at the first end of the movable rail 2; a rotating shaft lifting plate 14, both ends of the rotating shaft lifting plate 14 are respectively connected to the two lifting chute assemblies 3 located at the second end of the movable rail 2. The rotating shaft lifting plate 14 is connected to the rotating shaft on the second end of the movable rail 2 through a flange 13. The rotating shaft lifting plate 14 is lifted and lowered through the synchronous sliding of the two lifting chute assemblies 3 located at the second end of the movable rail 2.

[0044] Among them, the switch beam 1 is a beam body used to support the switch and vehicle turnout in the suspended single-track switch. The switch beam 1 is a beam body with a lower opening. The main body of the switch beam 1 is composed of a single-track beam and a double-track beam connected. The movable rail 2 is arranged parallel to the switch beam 1 in the single-track beam and one end is connected to the intersection of the double-track beam.

[0045] Among them, the lifting crank assembly 10 is a component used to drive the chute assembly 3 to lift and lower through the crankshaft 10-1 and a multi-link structure. The two bearing seats 11 in the lifting crank assembly 10 are symmetrically installed on both sides of the axis line of the switch beam 1 with the axis line of the switch beam 1 as the center. The two bearing seats 11 can be installed by bolts, buckles or welding, as long as the bearing seats 11 are installed stably. The embodiments of the present invention do not make specific limitations on this.

[0046] Specifically, Figure 2Details magnification of a movable rail lifting device for a suspended single-rail turnout provided by an embodiment of the present invention Figure Ⅰ , see Figure 2 . Both ends of the crankshaft 10-1 pass through two bearing seats 11 respectively. The crankshaft 10-1 and the bearing seats 11 can be connected by clearance fit or by means of a bearing fastening sleeve. The power crank arm 10-2, the first crank arm group 10-3 and the second crank arm group 10-4 on the crankshaft 10-1 can be integrally formed with the crankshaft 10-1 or can be fastened on the crankshaft 10-1 by means of key connection, interference connection, etc. The first crank arm group 10-3 and the second crank arm group 10-4 are respectively provided with two crank arms. The power crank arm 10-2 is arranged at the axial center position of the crankshaft 10-1. The two crank arms in the first crank arm group 10-3 are respectively arranged on both sides of the power crank arm 10-2. The two crank arms in the second crank arm group 10-4 are respectively arranged outside the two crank arms in the first crank arm group 10-3.

[0047] It should be noted that when the crankshaft 10-1 is installed on the two bearing seats 11, the two crank arms of the second crank arm group 10-4 can be arranged on the inner side of the crankshaft 10-1 relative to the bearing seats 11 or on the outer side of the crankshaft 10-1 relative to the bearing seats 11, as long as the power crank arm 10-2, the crank arms of the first crank arm group 10-3 and the second crank arm group 10-4 rotate synchronously when the crankshaft 10-1 rotates.

[0048] It should also be noted that since a set of lifting chute assemblies 3 are respectively arranged on both sides of the lifting crank assembly 10, in order to make the two sets of lifting chute assemblies 3 drive the switch lifting cross beam 4 and the rotating shaft lifting plate 14 to rise or fall synchronously, the directions of the crank arms of the first crank arm group 10-3 and the second crank arm group 10-4 on the crankshaft 10-1 are opposite, that is, the connection ends of the two crank arms of the first crank arm group 10-3 and the second pull rod group 12 and the connection ends of the two crank arms of the second crank arm group 10-4 and the first pull rod group 9 are located in the same plane and the included angle between them is 180°.

[0049] Among them, the lifting chute assembly 3 is a component used to realize the rise or fall of the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 by sliding in the chute. The lifting chute assembly 3 can be composed of a guiding seat, a sliding plate and a sliding seat, or directly composed of a sliding plate and a sliding seat, as long as it can realize the rise and fall of the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 by sliding in the chute. The embodiments of the present invention do not make specific limitations on this. For example, the lifting chute assembly 3 includes a guiding seat 3-1 and a sliding part. A chute and a through hole larger than the connection ends of the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 are provided in the guiding seat 3-1, and the sliding part is arranged in the chute. The structure of the sliding part can be an inclined slider to push the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 to rise or fall by thrust during sliding, or it can be a sliding convex groove to drive the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 to slide up or down during sliding, as long as it can make the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 slide up or down under the action of the pull rod. The embodiments of the present invention do not make specific limitations on the structure of the lifting chute assembly 3.

[0050] In a possible embodiment, the lifting chute assembly 3 includes a guiding seat 3-1, a sliding plate 3-2 and a sliding seat 3-3. The guiding seat 3-1 is provided with a vertical guiding groove 3-102 and a horizontal guiding groove 3-101. The guiding seat 3-1 is fixedly installed on the turnout beam 1. The sliding plate 3-2 is embedded in the horizontal guiding groove 3-101. The sliding seat 3-3 is arranged in the sliding plate 3-2 and moves horizontally along the sliding plate 3-2. The sliding seat 3-3 is provided with a linearly inclined cam chute 3-301 in the horizontal direction.

[0051] It should be noted that the vertical guiding groove 3-102 is used for vertically positioning the switch lifting crossbeam 4 and the rotating shaft lifting plate 14. The two ends of the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 respectively pass through the vertical guiding groove 3-102. During the lifting and lowering process, the switch lifting crossbeam 4 and the rotating shaft lifting plate 14 can only rise or fall along the position of the vertical guiding groove 3-102. The horizontal guiding groove 3-101 is a groove used to make the sliding seat 3-3 move horizontally. The sliding plate 3-2 is fixedly embedded in the horizontal guiding groove 3-101, providing a horizontal path for the sliding of the sliding seat 3-3 and reducing the sliding friction resistance.

[0052] In addition, the sliding seat 3-3 is provided with a cam chute 3-301 that is linearly inclined in the horizontal direction. When the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 respectively pass through the vertical guide chute 3-102 and are embedded in the cam chute 3-301, the movement of the sliding seat 3-3 can cause the switch lifting cross beam 4 and the rotating shaft lifting plate 14 to rise and fall along the vertical guide chute 3-102. Specifically, the roller 4-3 at one end of the switch lifting cross beam 4 or the rotating shaft lifting plate 14 passes through the vertical guide chute 3-102 and is embedded in the cam chute 3-301. The sliding seat 3-3 slides. When the sliding seat 3-3 slides to the innermost end of the horizontal chute, the roller 4-3 is located at the lowest point of the linearly inclined cam chute 3-301. At this time, both the switch lifting cross beam 4 and the rotating shaft lifting plate 14 are located at the lowest point. When the sliding seat 3-3 slides to the outermost end of the horizontal chute, the roller 4-3 is located at the highest point of the linearly inclined cam chute 3-301. At this time, both the switch lifting cross beam 4 and the rotating shaft lifting plate 14 are located at the highest point.

[0053] In addition, the groove diameter of the cam chute 3-301 can be equal to the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3, or can be slightly larger than the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3. In a possible embodiment, the groove diameter of the cam chute 3-301 is larger than the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3. For example, if the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3 is 1 cm, the groove diameter of the cam chute 3-301 can be 1.5 cm. The above data are only exemplary data, and the embodiments of the present invention do not specifically limit the ranges of the groove diameter of the cam chute 3-301 and the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3. When the groove diameter of the cam chute 3-301 is larger than the outer diameter of the connecting parts of the two ends of the switch lifting cross beam 4 and the rotating shaft lifting plate 14 with the lifting chute assembly 3, when the movable rail 2 falls in place and when the vehicle passes through the suspended single turnout, after the track beam deflects downward, the movable rail 2 can synchronously move downward, preventing the impact and load deformation when the vehicle passes through the movable rail 2 from transmitting the reaction force to the lifting mechanism, thus realizing the protection of the lifting mechanism.

[0054] Among them, the switch lifting cross beam 4 is a device for lifting and lowering the movable rail 2 and realizing the switching of the movable rail 2 through other devices. The body of the switch lifting cross beam 4 can be a cross beam plate or a hollow cross beam 4-1. In a possible implementation manner, to reduce the switching friction of the movable rail 2, the body of the switch lifting cross beam 4 is set as the hollow cross beam 4-1, and the roller 5-1 of the suspension assembly 5 rolls on the hollow cross beam 4-1 of the switch lifting cross beam 4 to realize the switching of the movable rail.

[0055] Specifically, Figure 3Details enlargement of a movable rail lifting device for a suspended single-track switch provided by an embodiment of the present invention Figure Ⅱ , Figure 4 is a perspective view of a switch lifting cross beam provided by an embodiment of the present invention. Refer to Figure 3 and Figure 4 . The body of the switch lifting cross beam 4 is a hollow cross beam 4-1. At both ends of the switch lifting cross beam 4, a guide block 4-2 and a roller 4-3 are sequentially arranged from inside to outside. The guide blocks 4-2 at both ends of the switch lifting cross beam 4 are respectively embedded in the vertical guide grooves 3-102 of the guide seats 3-1 in two lifting chute assemblies 3 at the first end of the movable rail 2. The rollers 4-3 at both ends of the switch lifting cross beam 4 respectively pass through the vertical guide grooves 3-102 of the guide seats 3-1 in two lifting chute assemblies 3 at the first end of the movable rail 2 and are embedded in the cam chutes 3-301 of the sliding seats 3-3. The rollers 4-3 at both ends of the switch lifting cross beam 4 are respectively movably connected to two lifting chute assemblies 3 at the first end of the movable rail 2 through end caps 4-4.

[0056] It should be noted that the switch lifting cross beam 4 realizes vertical positioning through the guide block 4-2 and the vertical guide groove 3-102 of the guide seat 3-1, and realizes ascending and descending in the vertical direction through the roller 4-3 and the cam chute 3-301 in the sliding seat 3-3. The lower end of the switch lifting cross beam 4 can be fixedly connected to the first end of the movable rail 2 by means of welding, threaded bolts, etc., or can be movably connected to the first end of the movable rail 2 by means of a suspension assembly 5.

[0057] In a possible embodiment, the movable rail 2 lifting device of the suspended single-track switch further includes a suspension assembly 5. As Figure 3 shown, the suspension assembly 5 includes a suspension roller group 5-1, a roller connecting plate 5-2 and a roller base 5-3. The suspension roller group 5-1 is clamped in the hollow cross beam 4-1 of the switch lifting cross beam 4 and moves along the horizontal direction of the switch lifting cross beam 4. The roller base 5-3 is located below the switch lifting cross beam 4. The suspension roller group 5-1 is fixedly connected to the roller base 5-3 through the roller connecting plate 5-2, and the roller base is fixedly connected to the movable rail 2. Through the setting of the suspension assembly 5, a flexible connection between the switch lifting cross beam 4 and the movable rail 2 can be realized. Thus, after the switch lifting cross beam 4 is lifted, the suspension assembly 5 moves on the lifting cross beam 4 in a rolling manner, and the switch of the movable rail 2 can be realized with less friction.

[0058] Among them, the rotating shaft lifting plate 14 is a device that cooperates with the switch lifting cross beam 4 to lift and lower both ends of the movable rail 2 synchronously. As Figure 5 is a perspective view of a rotating shaft lifting plate provided by an embodiment of the present invention. Refer to Figure 5, a circular through-hole is formed at the center of the plate body 14-1 of the rotating shaft lifting plate. The rotating shaft lifting plate 14 is sleeved on the rotating shaft at the second end of the movable rail 2 and is fixedly connected to the rotating shaft of the movable rail 2 through a flange 13. Guide blocks 14-2 and guide wheels 14-3 are sequentially arranged from the inside to the outside at both ends of the rotating shaft lifting plate 14. The guide blocks 14-2 at both ends of the rotating shaft lifting plate 14 are respectively embedded in the vertical guide grooves 3-102 of the guide seats 3-1 in the two lifting chute assemblies 3 at the second end of the movable rail 2. The guide wheels 14-3 at both ends of the rotating shaft lifting plate 14 respectively pass through the vertical guide grooves 3-102 of the guide seats 3-1 in the two lifting chute assemblies 3 at the second end of the movable rail 2 and are embedded in the cam chutes 3-301 of the sliding seats 3-3. The guide wheels 14-3 at both ends of the rotating shaft lifting plate 14 are respectively movably connected to the two lifting chute assemblies 3 at the second end of the movable rail 2 through wheel covers 14-4.

[0059] Among them, the power push rod 6 is the power source of the lifting device for the movable rail 2 of the suspended single turnout. The power push rod 6 can be a linear drive unit such as an electric push rod or a hydraulic cylinder, and the power push rod 6 makes a linear reciprocating motion. The power push rod 6 is hinged to the power crank arm 10-2. The power push rod 6 can be directly fixedly installed on the turnout beam 1, or can be fixedly installed on the turnout beam 1 through the cross beam assembly 8 and the power push rod base 7. In a specific embodiment, the lifting device for the movable rail of the suspended single turnout further includes a cross beam assembly 8 and a power push rod base 7. The cross beam assembly 8 is fixedly installed on the turnout beam 1, the power push rod base 7 is fixedly installed on the cross beam assembly 8, and the power push rod 6 is connected to the power push rod base 7 through a pin shaft.

[0060] Figure 6 is a three-dimensional view of the locking device of a lifting device for a movable rail of a suspended single turnout provided by an embodiment of the present invention. Refer to Figure 6 . The lifting device for the movable rail of the suspended single turnout further includes a locking block 2-1 and a locking seat 2-2. The locking block 2-1 is fixedly installed above the movable rail 2, and the locking seat 2-2 is fixedly installed below the turnout beam 1. The locking seat 2-2 is used to lock the movable rail 2 through the locking block 2-1 when the movable rail 2 descends, and unlock the movable rail 2 through the locking block 2-1 when it ascends.

[0061] In addition, to precisely control the operation of the power push rod 6, the movable rail lifting device of the suspended single turnout further includes a controller 15, which is used to control the power push rod 6 to perform linear reciprocating motion according to the received turnout signal of the suspended single turnout. The controller 15 can be separately arranged outside the power push rod 6 and control the movement of the power push rod 6 through electrical connection, or can be integrated inside the power push rod 6 to save the space of the device. The controller 15 can receive the turnout control signal of the suspended single turnout in a wired manner, or can receive the turnout control signal of the suspended single turnout through a wireless communication method such as WIFI, Bluetooth, 4G, 5G signals by integrating a communication module. The controller 15 can also determine whether the power push rod 6 is pushed out or retracted in place by obtaining the movement duration of the power push rod 6, obtaining the thrust value of the power push rod 6, etc. When the controller 15 receives the turnout signal of the movable rail 2, it synchronously controls the movement of the power push rod 6 to achieve the lifting of the movable rail 2.

[0062] In a possible embodiment, the movable rail lifting device of the suspended single turnout provided in the embodiment of the present invention is applied to the suspended single turnout, and together with the movable rail turnout device and the compensating rail locking device of the suspended single turnout, it forms a suspended single turnout system to achieve the functions of lifting, turning, and locking of the movable rail. In this suspended single turnout, the movable rail turnout device is connected to the movable rail and is used to turn the movable rail; the compensating rail locking device is connected to the lifting crank assembly and is used to unlock the compensating rail in the suspended single turnout when the movable rail lifting device of the suspended single turnout lifts the movable rail, and lock the compensating rail in the suspended single turnout when the movable rail lifting device of the suspended single turnout lowers the movable rail.

[0063] When the embodiment of the present invention is in operation, the controller obtains a control signal and controls the power push rod to perform a linear reciprocating motion according to the control signal. When the power push rod performs a linear reciprocating motion, the linear reciprocating motion of the power push rod drives the crankshaft of the lifting crank assembly to rotate. The first crank arm group and the second crank arm group arranged on the crankshaft rotate synchronously, and drive two lifting chute assemblies located at the first end of the movable rail and two lifting chute assemblies located at the second end of the movable rail to perform reciprocating sliding motions respectively through the first pull rod group and the second pull rod group. During the reciprocating sliding motion of the lifting chute assembly, it can drive the switch lifting cross beam and the rotating shaft lifting plate to rise or fall synchronously in their respective vertical directions, thereby driving the overall rise or fall of the movable rail. When the movable rail is lifted to the highest point, the rotating shaft lifting plate and the switch lifting cross beam are located at the horizontal position above the lifting chute assembly, so that the weight of the movable rail is borne by the lifting chute assembly and there is no horizontal component force. Similarly, when the movable rail falls to the lowest point, the rotating shaft lifting plate and the switch lifting cross beam are located at the horizontal position below the lifting chute assembly. When a vehicle passes through the turnout, all the downward pressure of the vehicle borne by the movable rail and its own gravity are transferred to the lifting chute assembly, and the power push rod no longer bears pressure, thus avoiding the problem that the reliability of the electric push rod and the turnout is seriously affected due to long-term use of the movable rail lifting device of the suspended single-track turnout in the related art, and improving the safety and service life of the turnout.

[0064] Meanwhile, the embodiment of the present invention can also set the groove diameter of the cam chute to be larger than the outer diameter of the roller at the connection part of the rotating shaft lifting plate and the switch lifting cross beam, so that when the vehicle passes through the turnout area, the turnout beam deflects downward, and the movable rail can synchronously move downward to ensure that the bottom of the movable rail is always in contact with the turnout beam, preventing the impact and load deformation when the vehicle passes through the movable rail from transmitting the reaction force to the power push rod, and further realizing the protection of the electric push rod.

[0065] 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 movable rail lifting device, comprising a turnout beam (1) and a movable rail (2) arranged horizontally in the turnout beam along the horizontal direction of the turnout beam, characterized in that, Further included are: A lifting crank assembly (10), the lifting crank assembly (10) includes a crankshaft (10-1) and two bearing seats (11), the two bearing seats (11) are symmetrically installed on the switch beam (1), on the crankshaft (10-1), a power crank arm (10-2), a first crank arm group (10-3) and a second crank arm group (10-4) are sequentially arranged from the axis center to both ends of the shaft, the power crank arm (10-2) and the two crank arms of the first crank arm group (10-3) are in the same direction and are opposite to the two crank arms of the second crank arm group (10-4), and both ends of the crankshaft (10-1) are respectively connected to the two bearing seats (11); Lifting chute assemblies (3), the number of the lifting chute assemblies (3) is four, and they are grouped in pairs and located above both ends of the movable rail (2) respectively. The four lifting chute assemblies (3) are all fixedly installed on the switch beam (1). The two lifting chute assemblies (3) located at the first end of the movable rail (2) are connected through a first pull rod group (9) and the second crank arm group (10-4), and the two lifting chute assemblies (3) located at the second end of the movable rail (2) are connected through a second pull rod group (12) and the first crank arm group (10-3); A power push rod (6), the power push rod (6) is fixedly installed on the switch beam (1), and the linear execution end of the power push rod (6) is connected to the power crank arm (10-2); A switch lifting cross beam (4), both ends of the switch lifting cross beam (4) are respectively connected to the two lifting chute assemblies (3) located at the first end of the movable rail (2), the lower part of the switch lifting cross beam (4) is connected to the movable rail (2), and the switch lifting cross beam (4) is lifted and lowered through the synchronous sliding of the two lifting chute assemblies (3) located at the first end of the movable rail (2); A rotating shaft lifting plate (14), both ends of the rotating shaft lifting plate (14) are respectively connected to the two lifting chute assemblies (3) located at the second end of the movable rail (2), the rotating shaft lifting plate (14) is connected to a rotating shaft on the second end of the movable rail (2) through a flange (13), and the rotating shaft lifting plate (14) is lifted and lowered through the synchronous sliding of the two lifting chute assemblies (3) located at the second end of the movable rail (2); The lifting chute assembly (3) includes a guide seat (3-1), a sliding plate (3-2) and a sliding seat (3-3); The guide seat (3-1) is provided with a vertical guide groove (3-102) and a horizontal guide groove (3-101), and the guide seat (3-1) is fixedly installed on the switch beam (1); The sliding plate (3-2) is embedded in the horizontal guide groove (3-101), the sliding seat (3-3) is arranged in the sliding plate (3-2) and moves horizontally along the sliding plate (3-2), and the sliding seat (3-3) is provided with a cam guide groove (3-301) which is linearly inclined in the horizontal direction; The body of the switch lifting crossbeam (4) is a hollow crossbeam (4-1). At both ends of the switch lifting crossbeam (4), a guide block (4-2) and a roller (4-3) are sequentially arranged from inside to outside; The guide blocks (4-2) at both ends of the switch lifting crossbeam (4) are respectively embedded into the vertical guide grooves (3-102) of the guide seats (3-1) in the two lifting chute assemblies (3) at the first end of the movable rail (2). The rollers (4-3) at both ends of the switch lifting crossbeam (4) respectively pass through the vertical guide grooves (3-102) of the guide seats (3-1) in the two lifting chute assemblies (3) at the first end of the movable rail (2) and are embedded into the cam chutes (3-301) of the sliding seats (3-3). The rollers (4-3) at both ends of the switch lifting crossbeam (4) are respectively movably connected with the two lifting chute assemblies (3) at the first end of the movable rail (2) through end caps (4-4); A circular through hole is provided at the center of the plate body (14-1) of the rotating shaft lifting plate. The rotating shaft lifting plate (14) is sleeved on the rotating shaft at the second end of the movable rail (2) and is connected to the rotating shaft of the movable rail (2) through a flange (13); At both ends of the rotating shaft lifting plate (14), a guide block (14-2) and a guide wheel (14-3) are sequentially arranged from inside to outside. The guide blocks (14-2) at both ends of the rotating shaft lifting plate (14) are respectively embedded into the vertical guide grooves (3-102) of the guide seats (3-1) in the two lifting chute assemblies (3) at the second end of the movable rail (2). The guide wheels (14-3) at both ends of the rotating shaft lifting plate (14) respectively pass through the vertical guide grooves (3-102) of the guide seats (3-1) in the two lifting chute assemblies (3) at the second end of the movable rail (2) and are embedded into the cam chutes (3-301) of the sliding seats (3-3). The guide wheels (14-3) at both ends of the rotating shaft lifting plate (14) are respectively movably connected with the two lifting chute assemblies (3) at the second end of the movable rail (2) through wheel caps (14-4).

2. A movable rail lifting device for a suspended single-track turnout according to claim 1, characterized in that, The groove diameter of the cam chute (3-301) is larger than the outer diameter of the connecting parts of both ends of the switch lifting crossbeam (4) and the rotating shaft lifting plate (14) with the lifting chute assembly (3).

3. A movable rail lifting device for a suspended single track switch according to claim 1, characterized in that, The hanging single-rail switch movable rail lifting device further includes a suspension assembly (5); The suspension assembly (5) includes a suspension roller group (5-1), a roller connecting plate (5-2) and a roller base (5-3). The suspension roller group (5-1) is clamped in the hollow crossbeam (4-1) of the switch lifting crossbeam (4) and moves along the horizontal direction of the switch lifting crossbeam (4). The roller base (5-3) is located below the switch lifting crossbeam (4). The suspension roller group (5-1) is fixedly connected with the roller base (5-3) through the roller connecting plate (5-2), and the roller base (5-3) is fixedly connected with the movable rail (2).

4. The movable rail lifting device of the suspended single track switch according to claim 1, characterized in that, The hanging single-rail switch movable rail lifting device further includes a crossbeam assembly (8) and a power push rod base (7); The crossbeam assembly (8) is fixedly installed on the turnout beam (1), the power push rod base (7) is fixedly installed on the crossbeam assembly (8), and the power push rod (6) is connected to the power push rod base (7) through a pin shaft.

5. The suspended single-track turnout movable rail lifting device according to claim 1, characterized in that, The suspended single-track turnout movable rail lifting device further includes a locking block (2-1) and a locking seat (2-2); The locking block (2-1) is fixedly installed above the movable rail (2), the locking seat (2-2) is fixedly installed below the turnout beam (1), and the locking seat (2-2) is used to lock the movable rail (2) through the locking block (2-1) when the movable rail (2) descends.

6. The movable rail lifting device of a suspended single-track turnout according to claim 1, characterized in that, The suspended single-track turnout movable rail lifting device further includes a controller (15), and the controller (15) is used to control the power push rod (6) to perform a linear reciprocating motion according to the received suspended single-track turnout switching signal.

7. A suspended single-track turnout, characterized in that, The suspended single-track turnout includes a movable rail switching device, a compensating rail locking device, and a suspended single-track turnout movable rail lifting device according to any one of claims 1-6; The movable rail switching device is connected to the movable rail and is used to switch the movable rail; The compensating rail locking device is connected to the lifting crank assembly and is used to unlock the compensating rail in the suspended single-track turnout when the suspended single-track turnout movable rail lifting device lifts the movable rail, and lock the compensating rail in the suspended single-track turnout when the suspended single-track turnout movable rail lifting device lowers the movable rail.

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