A suspended track single-opening vehicle line changing system

Abstract

The present invention discloses a suspension track single-opening vehicle line-changing system, in which a turnout beam realizes line-changing by connecting the corresponding rear stack beam and the front stack beam through a rotary motion, and the above-mentioned devices and mechanisms are integrated in the line-changing system, and articulated bearings are used in the rotary device, the connecting device, and the running device, so as to realize adaptive adjustment of the position relationship, compensate for the matching error of the turnout beam caused by temperature and vibration factors, and provide stable support and operating conditions. The installation position of the drum gear and the rack assembly of the rotary drive mechanism can also adapt to the telescopic deformation of the turnout beam, and provide stable drive. The combination of the above-mentioned devices and mechanisms improves the stable operation of the suspension track line-changing system as a whole.

Description

Technical Field

[0001] The invention relates to the field of suspended track beams, and in particular to a suspended track single-opening vehicle line changing system. Background Art

[0002] Suspended rail transit is a relatively popular form of rail transit system in recent years. In suspended rail transit, a line changing system is also provided to facilitate train line changing. The stack beams in different directions at both ends are connected by a switch beam. The single vehicle line changing system switches a front stack beam through the switch beam to guide the train into two different rear stack beams. The existing line changing system includes two forms of line changing, such as the technical solution disclosed in patent application 201710456765.X, in which the switch beam connects the front stack beam and the rear stack beam by translation, or the line changing operation is performed by rotating the switch beam as in patent applications 202010117408.2, 202010386333.8, and 202110282480.5, in which a rotating switch beam is used. In the patent applications for the line change by rotating the turnout beam, 202010386333.8, 202010117408.2, and 201710527060.2 all use push rods to drive the turnout beam to move. Compared with the patent application 201710456765.X, which uses push rods to drive the turnout beam in a straight line, the rotating turnout beam uses push rods to drive the turnout beam, which makes it difficult to control the rotation angle of the turnout beam. Although the patent application 202110282480.5 uses gears to drive the turnout beam to rotate, because the gear axis is perpendicular to the ground, the turnout beam is affected by factors such as ambient temperature or vibration, which will destroy the meshing relationship between the gear and the rack, either causing stagnation or causing the gear and rack to mesh imperfectly with a gap, which makes the line change smooth. In addition, the guide wheels in the running mechanism that provide support for the turnout beam in the above-mentioned patent applications are all rigid structures. Due to assembly errors, ambient temperature, vibration of the turnout beam and other factors, some guide wheels in the running mechanism cannot perfectly contact the running track, affecting the stability and smoothness of the turnout beam operation. In addition to the above problems, the above patent applications also have the problem that the slewing device is a rigid structure that cannot achieve error compensation, and the connecting device between the turnout beams is a rigid structure that cannot achieve error compensation. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, a suspended track single-opening vehicle line-changing system is provided which has a reasonable structure, stable operation, and a function of compensating for the deformation of the turnout beam caused by factors such as ambient temperature and vibration. The technical solution adopted by the present invention is:

[0004] A suspended track single-open vehicle line-changing system, comprising a front stack beam, a rear stack beam, a turnout beam and a gantry beam, wherein the front stack beam is provided with one, the rear stack beam is provided with two, the turnout beam is provided with two for connecting the front stack beam and the rear stack beam, at least two gantry beams are provided, respectively close to the two ends of the turnout beam, for suspending the turnout beam, a slewing device for the turnout beam to rotate around is provided between the gantry beam close to one end of the rear stack beam and one of the turnout beams, a slewing driving mechanism for driving the turnout beam to rotate around the slewing device is provided between the gantry beam close to one end of the front stack beam and the turnout beam, a running mechanism for providing support for the turnout beam and realizing walking is provided between the gantry beam and the turnout beam, a locking mechanism is provided on the front stack beam and the two rear stack beams, and a connecting device is provided between the two turnout beams;

[0005] The running mechanism includes a running track installed on the gantry beam and a group of roller assemblies connected to the turnout beam, the roller assembly includes a support seat, a support shaft and a roller, each of the rollers rolls along a horizontal plane on the running track, and a first joint bearing is arranged between the roller and the support shaft;

[0006] The rotary drive mechanism includes a power assembly, a drum gear and a rack assembly. The drum gear is arranged at the power output end of the power assembly. The power assembly is installed on the turnout beam. The axis of the drum gear points to the axis of the rotary device and is parallel to the horizontal plane. The rack assembly is installed on the portal beam and includes a group of straight racks arranged in an arc shape.

[0007] Furthermore, guide wheel compensation plates are provided at the joints of the front stack beam, the turnout beam and the rear stack beam, and the compensation plates are tooth-shaped and matched with each other to fill the gaps. Furthermore, the arc center of the arc formed by the spur rack arrangement combination is concentric with the rotation center of the turnout beam; the power assembly includes a motor and a reducer.

[0008] Furthermore, the axis of each roller points to the axis of the rotating device.

[0009] Furthermore, the running track is arc-shaped and the center of the arc is concentric with the center of the rotating device.

[0010] Furthermore, the running track and roller assembly are arranged at one end away from the rotating device, a sliding guide rail is provided on the gantry beam close to the rotating device, a sliding frame slidably arranged on the sliding guide rail is installed on the turnout beam, and limit plates are provided at both ends of the sliding guide rail.

[0011] Furthermore, a pair of sliding frames are arranged on both sides of each of the turnout beams.

[0012] Furthermore, a copper plate which is in sliding contact with the sliding frame is provided on the sliding guide rail.

[0013] Furthermore, the number and position of the sliding guide rails match those of the sliding racks, and each of the sliding guide rails is arc-shaped and the arc center is concentric with the center of the rotating device.

[0014] Furthermore, the slewing device comprises an upper fixed seat and a lower fixed seat, and a second joint bearing is provided between the upper fixed seat and the lower fixed seat.

[0015] Furthermore, the upper fixed seat is provided with an inner cavity for limiting the outer ring of the second spherical bearing, and the lower fixed seat is provided with a rotating shaft that can be inserted into the inner ring of the second spherical bearing; a sealing ring is provided between the upper fixed seat and the rotating shaft.

[0016] Furthermore, the upper fixing seat includes an upper fixing column and an upper fixing flange, and the inner cavity is arranged in the upper fixing column; the lower fixing seat includes a lower fixing column and a lower fixing flange, and the rotating shaft is arranged on the lower fixing column.

[0017] Furthermore, a group of reinforcing ribs are provided between the upper fixing column and the upper fixing flange, and between the lower fixing column and the lower fixing flange.

[0018] Furthermore, the rotary shaft and the lower fixed column are integrated into one body.

[0019] Furthermore, the rotary shaft is connected to the lower fixed column through a flange.

[0020] Furthermore, a retaining ring is provided at the end of the upper fixed column to prevent the second joint bearing from falling off from the inner cavity, and the sealing ring is arranged between the retaining ring and the rotating shaft.

[0021] Furthermore, a limiting boss is provided in the inner cavity, and a retaining ring is installed at the end of the upper fixed column to tighten the second spherical bearing against the limiting boss.

[0022] Furthermore, a bearing sleeve is provided between the retaining ring and the outer ring of the second spherical bearing.

[0023] Furthermore, the connecting device is used to connect two turnout beams together, and at least one pair of connecting devices is arranged between the two turnout beams, and the pair of connecting devices respectively connect the pair of turnout beams together near the two ends of the turnout beams. The pair of connecting devices includes at least one movable connecting member, and the movable connecting member includes a pair of bases respectively fixed to the two turnout beams, and a third joint bearing is provided on each of the bases, and a connecting rod is provided between the pair of third joint bearings.

[0024] Furthermore, the length of the connecting rod is adjustable, and an inclined surface is provided on one side where at least one of the bases is connected to the turnout beam.

[0025] Furthermore, the connecting rod includes a threaded sleeve, and threaded rods are threadedly connected to both ends of the threaded sleeve. Each threaded rod is connected to the third joint bearing on one side, and a locking nut is also provided on each threaded rod.

[0026] Furthermore, the pair of connecting devices also includes a fixed connecting member, and the fixed connecting member includes an intermediate pile. A first connecting plate and a second connecting plate respectively connected to two turnout beams are provided at both ends of the intermediate pile.

[0027] Furthermore, the first connecting plate and the second connecting plate are connected to the middle pile via flanges, and at least one of the first connecting plate and the second connecting plate is provided with an inclined surface; a pad is provided between the middle pile and the first connecting plate and / or the second connecting plate.

[0028] Furthermore, the movable connecting member is arranged at an end away from the rotating device, and the fixed connecting member is arranged at an end close to the rotating device.

[0029] Furthermore, the locking mechanism includes a thrust rod, a locking pin, a guide slide seat, and a locking seat. The locking pin is slidably arranged on the guide slide seat and connected to the thrust rod. The thrust rod and the guide slide seat are arranged on the front stack beam or the rear stack beam. The locking seat is arranged on the turnout beam. The thrust rod can drive the locking pin to insert or exit the locking seat.

[0030] Furthermore, the thrust rod is an electric push rod or a hydraulic rod.

[0031] Furthermore, the locking mechanism also includes a limit switch, and the limit switch is arranged on the locking seat.

[0032] The track beam line changing system of the above structure adopts a pair of turnout beams to rotate for single vehicle line changing, avoiding unstable operation caused by excessive movement distance of the turnout beam, and avoiding problems such as large vehicle operation noise caused by excessive gap at the joint. The roller of the running mechanism can compensate for the problem of incomplete contact between the roller and the running track caused by ambient temperature, vibration and assembly error through the first joint bearing, so that the roller adapts to the matching relationship with the running track and makes the roller fully contact with the running track, thereby improving the operation stability during the rotation of the turnout beam; the rotary drive mechanism adopts a drum gear, and the axis of the drum gear is parallel to the horizontal plane to eliminate the problem of unstable operation of the running mechanism caused by the expansion and contraction of the turnout beam, and further improve the operation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the line changing system of the present invention;

[0034] Figure 2It is a schematic diagram of the structure of the running mechanism of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the roller group of the running mechanism of the present invention;

[0036] Figure 4 It is a schematic diagram of the sliding guide rail structure of the running mechanism of the present invention;

[0037] Figure 5 It is a schematic diagram of the structure of the rotary drive mechanism of the present invention;

[0038] Figure 6 It is a schematic diagram of the structure of the rack assembly of the rotary drive mechanism of the present invention;

[0039] Figure 7 It is a schematic diagram of the power assembly structure of the rotary drive mechanism of the present invention;

[0040] Figure 8 It is a schematic diagram of the structure of the rotary device of the present invention;

[0041] Fig. 9 It is a cross-sectional view of the rotary device of the present invention;

[0042] Fig.10 A schematic diagram of the connection structure of the connection device of the present invention connected to the turnout beam;

[0043] Fig.11 This is a schematic diagram of the structure of the movable connecting member of the connecting device of the present invention;

[0044] Fig.12 A cross-sectional view of a movable connecting member of a connecting device of the present invention;

[0045] Fig.13 This is a schematic diagram of the structure of the fixed connecting piece of the connecting device of the present invention;

[0046] Fig.14 This is a schematic diagram of the locking mechanism structure of the present invention;

[0047] Fig.15 This is a schematic diagram of the compensation plate structure of the present invention. DETAILED DESCRIPTION

[0048] In order to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0049] like Figure 1The suspended track single-open vehicle line-changing system shown in the figure includes a front stack beam 1, a rear stack beam 2 and a switch beam 3. Since the technical scheme involves a single-open vehicle line-changing system, the front stack beam 1 is designed as one, the rear stack beam 2 is designed as two, and the corresponding switch beam 3 is also designed as two. The switch beam 3 and the rear stack beam 2 are in a corresponding relationship. As shown in Figure 1, the curved rear stack beam 2 is connected to the front stack beam 1 through the curved switch beam 3, and the straight rear stack beam 2 is connected to the front stack beam 1 through the straight switch beam 3. The switch beam 3 is rotated to move The switch beam 3 is used to connect the two rear beams 2 respectively, so that the switch beam 3 has a smaller rotation angle, and the connection between the switch beam 3 and the front beam 1 and the rear beam 2 is more reasonable. Therefore, the switch beam 3 in the line change system plays an important role in guiding the vehicle into the correct lane. The key link of the line, at least one pair of portal beams 4 is provided in the line change system to realize the suspension support of the turnout beam 3, in order to enable the turnout beam 3 to rotate around a fixed point, a rotating device 5 is provided between the turnout beam 3 and the portal beam 4, the rotating device 5 provides a rotation center positioning point, so that the turnout beam 3 can rotate around the rotating device 5 as the center, and a rotating drive mechanism 6 is also provided between the turnout beam 3 and the portal beam 4, and the rotating drive mechanism 6 provides power to drive the turnout beam 3 to rotate around the rotating device 5, in order to enable the turnout beam 3 to be suspended and travel along a fixed route, a running mechanism 7 is provided between the turnout beam 3 and the portal beam 3, because the rotating device 5 is only provided on one of the turnout beams 3, so in order to enable the two turnout beams 3 to perform synchronous and concentric rotation, it is necessary to connect the two turnout beams 3, so a connecting device is also provided between the two turnout beams 3, the connecting device is not only used for connecting the turnout beams 3 to realize synchronous movement, but also can ensure that the positional relationship between the two turnout beams 3 remains moderate and unchanged. In order to ensure that the turnout beam 3 is accurately positioned and prevented from loosening after the line change operation is completed, a locking mechanism 8 is provided on the front stack beam 1 and the rear stack beam 2 for locking the turnout beam 3 with the front stack beam 1 and the rear stack beam 2 after docking.

[0050] The following is a further description of the various devices and mechanism structures in the line changing system in conjunction with the accompanying drawings:

[0051] Traveling mechanism:

[0052] like Figure 2 The running mechanism 7 shown includes a running track 7-1 and a group of roller assemblies 7-2, wherein the running track 7-1 is connected and fixed on the portal beam 4, and the roller assembly 7-2 is connected to the switch beam 3, and the switch beam 3 is suspended through the roller assembly 7-2.

[0053] like Figure 3The roller assembly 7-2 shown includes a support seat 7-2-1, a support shaft 7-2-2 and a roller 7-2-3, the support seat 7-2-1 is connected to the turnout beam, the support shaft 7-2-2 is arranged on the support seat 7-2-1 for installing the roller 7-2-3, and a first joint bearing 7-2-4 is arranged between the roller 7-2-3 and the support shaft 7-2-2, wherein the roller 7-2-3 cooperates with the running track 7-1 and can roll along the horizontal plane on the running track 7-1. Due to assembly errors, thermal deformation and vibration caused by driving, if the roller 7-2-3 is directly rigidly connected to the support shaft 7-2-2, the roller 7-2-3 will not be able to fully contact the running track 7-1. For example, if one of the rollers 7-2-3 is installed too low to support the turnout beam 3, the remaining rollers 7-2-3 cannot contact or fully contact the running track 7-1, so that the roller assembly 7-2 is subjected to excessive force, resulting in unstable support and affecting the walking stability. After the first joint bearing 7-2-4 is set between the support shaft 7-2-2 and the roller 7-2-3, each roller 7-2-3 can be adaptively adjusted to achieve full contact with the running track 7-1, thereby providing better support for the turnout beam 3 and making the walking more stable.

[0054] like Figure 1 When the turnout beam shown in the figure moves by rotating, the axis of each roller 7-2-3 intersects with the axis of the rotary device 5, so that the roller can roll better during the walking process. Of course, the intersection of the roller axis and the rotation axis here is theoretical, and it is impossible to be so perfect in actual assembly, but the main purpose is to make the roller axis point to the axis of the rotary device 5, so that the roller can move along the arc, which conforms to the rotation characteristics of the turnout beam 3 and minimizes the sliding friction of the roller. If the area of ​​the running track 7-1 is large enough, if there is enough space for the rollers 7-2-3 to move, the shape and specifications of the running track do not need to be limited, and if the following is adopted Figure 2 The running track 7-1 is only set in the area where the roller 7-2-3 travels. In this case, the running track 7-1 needs to be set in an arc shape, and the arc center of the running track 7-1 is concentric with the rotation center of the turnout beam 3.

[0055] In the line-changing system, since the travel distances of the two ends of the turnout beam 3 far from the rotation center and near the rotation center are different, the end far from the rotation center moves a larger distance, while the end near the rotation center moves a smaller distance. Therefore, the roller assembly 7-2 can be installed at the end with a larger travel distance (with Figure 1 From the given structure, the roller assembly is installed at one end of the turnout beam 3 near the front beam 1), and the end with a smaller travel distance uses a sliding method to travel. This setting can not only meet the travel requirements but also control the cost and simplify the structure. Of course, both sides of the turnout beam can also use roller assemblies 7-2 to support and realize travel. Figure 2In the rolling and sliding travel mechanism shown in the figure, since the travel distance of the end of the turnout beam far away from the rotation center is longer, it is more reasonable to move by rolling. Therefore, the roller assembly 7-2 is arranged at the end far away from the rotation center of the turnout beam, and a sliding guide rail 7-3 is arranged on the gantry beam 4 at the end close to the rotation center of the turnout beam, and a sliding frame 7-4 is arranged on the turnout beam 3 at this location, and the sliding frame 7-4 is slidably arranged on the sliding guide rail 7-3, as shown in FIG. Figure 4 The sliding guide rail 7-3 shown in the figure is provided with limit plates 7-3-1 at both ends to prevent the slewing drive mechanism 6 from malfunctioning or the inertia is too large, causing the switch beam to move beyond the limit. For stability, a pair of sliding frames 7-4 are provided on a single switch beam 3. In order to save materials and reduce costs, the sliding guide rail 7-3 is provided in two sections and is respectively provided on the gantry beam 4 to keep the number and position corresponding to the sliding frames 7-4. Similarly, for stability, four roller assemblies 7-2 are provided on a single switch beam at the same time, two of which are provided on both sides of the switch beam, and the two roller assemblies 7-2 on the same side are provided on both sides of the running track 7-1. When the contact area between the sliding guide rail 7-3 and the sliding frame 7-4 is large enough, there is no need to consider the shape of the sliding guide rail 7-3. In order to save materials and make the shape of the sliding guide rail 7-3 consistent with the walking trajectory of the sliding frame 7-4, the sliding guide rail 7-3 is set to an arc shape. Similarly, it is ensured that the arc center of the sliding guide rail 7-3 coincides with the rotation center of the turnout beam, so that the contact area between the sliding frame 7-4 and the sliding guide rail 7-3 remains moderate and unchanged during the movement of the sliding frame 7-4. In order to reduce the wear of the sliding frame 7-4, a copper plate 7-3-2 is set at the contact position between the sliding guide rail 7-3 and the sliding frame 7-4.

[0056] Rotary drive mechanism

[0057] like Figure 5 It includes a power assembly 6-1 installed on the switch beam 3, a rack assembly 6-3 installed on the portal beam 4, a drum gear 6-2 installed on the power assembly 6-1 and meshing with the rack assembly 6-3, when the power assembly 6-1 drives the drum gear 6-2 to move along the rack assembly 6-3, it drives the switch beam 3 to rotate around its rotating device 5.

[0058] like Figure 6 The rack assembly shown includes a group of spur racks 6-3-1, which are arranged in an arc shape. Figure 7 The powertrain 6-1 shown in the figure includes a motor and a reducer, and the drum gear 6-2 is installed on the reducer. Figure 5 and Figure 1As shown, in order to realize walking along the arc, the axis of the drum gear 6-2 is parallel to the horizontal plane and points to the axis of the rotating device 5, and the arc center formed by the spur rack 6-3-1 is concentric with the rotation center of the turnout beam. Although the rack assembly 6-3 is formed by splicing and arranging spur racks 6-3-1, the drum gear 6-2 is used, so the teeth of the drum gear 6-2 and the spur rack 6-3-1 can maintain a meshing relationship within a small range, and when designing the rack assembly 6-3, the more spur racks there are and the shorter the length of each spur rack, the more the arc of the arranged rack assembly 6-3 tends to be a regular arc (it should be noted here that in a strict sense, the arrangement shape of the rack assembly should be a part of a polygon, but it tends to be an arc from the overall point of view, so we can consider it as an arc here). When the rack assembly 6-3 and the drum gear 6-2 are matched, even if the turnout beam 3 is deformed, the drum gear 6-2 moves axially without affecting the meshing relationship between the drum gear 6-2 and each spur rack 6-3-1. Therefore, the drive mechanism can not only meet the rotary drive, but also eliminate the influence of the deformation of the turnout beam on the operation stability of the drive mechanism.

[0059] The rotary drive mechanism should be installed as far away from the rotary device 5 as possible. Since the end of the turnout beam 3 moves a long distance away from the rotary device 5, there is enough installation space and the load when the rotary drive mechanism is driven can be reduced as much as possible.

[0060] Rotating device

[0061] like Figure 8 and Fig. 9 The rotating device 5 shown includes an upper fixed seat 5-1 and a lower fixed seat 5-2, and a second joint bearing 5-3 is arranged between the upper fixed seat 5-1 and the lower fixed seat 5-2, wherein the upper fixed seat 5-1 and the lower fixed seat 5-2 are respectively connected to the portal beam 4 and the turnout beam 3. In order to facilitate the installation of the second joint bearing 5-3, an inner cavity 5-1-1 is provided in the upper fixed seat 5-1, and the second joint bearing 5-3 is arranged in the inner cavity 5-1-1. The outer ring of the second joint bearing 5-3 contacts the inner wall of the inner cavity 5-1-1 to limit the shaking of the second joint bearing 5-3 in the inner cavity 5-1-1. The second joint bearing 5-3 can also be directly inserted into the inner cavity 5-1-1 by interference fit, so that the second joint bearing 5-3 is directly fixed in the inner cavity 5-1-1. A rotating shaft 5-4 is arranged on the lower fixed seat 5-2, and the rotating shaft 5-4 is inserted into the inner ring of the second joint bearing 5-3. In order to make the second joint bearing 5-3 run smoothly, it is also necessary to lubricate the second joint bearing 5-3. In order to avoid leakage of lubricating oil, a sealing ring 5-5 is arranged between the upper fixed seat 5-1 and the rotating shaft 5-4.

[0062] like Fig. 9The upper fixing seat 5-1 shown includes an upper fixing column 5-1-2 and an upper fixing flange 5-1-3. The inner cavity is set in the upper fixing column 5-1-2. A retaining ring 5-7 is set at the end of the upper fixing column 5-1-2 to prevent the second joint bearing 5-3 from falling off from the inner cavity 5-1-1. The retaining ring 5-7 and the upper fixing column 5-1-2 are integral. When the second joint bearing 5-3 and the inner cavity 5-1-1 are assembled in a non-clamping state, the retaining ring 5-7 can prevent the second joint bearing 5-3 from falling off. A sleeve (equivalent to Fig. 9 The middle limit boss 5-1-4) presses against the outer ring of the second joint bearing 5-3, and the second joint bearing 5-3 is clamped between the sleeve and the retaining ring 5-7 to achieve fixation. Of course, it can also be used Fig. 9 In the embodiment given in the embodiment, the retaining ring 5-7 and the upper fixed column 5-1-2 are separately arranged and connected together by bolts, and a limiting boss 5-1-4 is arranged in the inner cavity 5-1-1, and the second joint bearing 5-3 is clamped between the limiting boss 5-1-4 by fixing the retaining ring 5-7 on the upper fixed column 5-1-2. In order to avoid assembly errors and improve the clamping effect of the retaining ring 5-7, a bearing sleeve 5-8 is arranged between the retaining ring 5-7 and the second joint bearing 5-3, and the second joint bearing 5-3 is clamped and fixed by the retaining ring 5-7 pressing the bearing sleeve 5-8. In this structure, the sealing ring 5-5 is arranged between the retaining ring 5-7 and the rotating shaft. The above-mentioned sealing ring 5-5 is sealed with felt.

[0063] like Fig. 9 The lower fixing seat 5-2 shown includes a lower fixing column 5-2-1 and a lower fixing flange 5-2-2. The rotary shaft 5-4 is arranged on the lower fixing column 5-2-1. The rotary shaft 5-4 and the lower fixing column 5-2-1 can be used as a whole, or as shown in FIG. Fig. 9 The rotating shaft 5-4 is shown as being separately arranged from the lower fixed column 5-2-1 and connected to the lower fixed column 5-2-1 via a flange.

[0064] In order to stabilize the upper fixing column 5-1-2 and the lower fixing seat 5-2, a set of reinforcing ribs 5-6 are provided between the upper fixing column 5-1-2 and the upper fixing flange 5-1-3 and between the lower fixing column 5-2-1 and the lower fixing flange 5-2-2.

[0065] Connecting device

[0066] like Fig.10The switch beam connection structure shown includes at least one pair of connection devices, which are used to connect two switch beams to maintain the spacing and positional relationship between the two switch beams. The pair of connection devices are installed near the two ends of the switch beam. Of course, the connection structure can also add a connection device at the middle section of the switch beam 3 according to actual needs. At least one movable connection member 10 is provided in the pair of connection devices, that is, a movable connection member 10 is provided at one end between the two switch beams, and movable connection members 10 can also be provided at both ends of the two switch beams, or movable connection members 10 are provided at one end of the two switch beams 3 and fixed connection members 11 are provided at the other end.

[0067] like Fig.11 The movable connecting member 10 shown includes a base 10-1, a third joint bearing 10-2 and a connecting rod 10-3, wherein the base 10-1 includes two and is respectively fixedly connected to the adjacent two side walls of the two turnout beams 3, the third joint bearing 10-2 includes two and is respectively arranged on the two bases 10-1, and a connecting rod 10-3 is arranged between the two third joint bearings 10-2. Fig.11In the specific embodiment given, the base 10-1 includes a mounting plate 10-1-1 and two ears 10-1-2, and a group of fixing holes 10-1-3 are provided on the mounting plate 10-1-1. The mounting plate 10-1-1 is fixedly connected to the turnout beam by bolt connection or riveting. The inner ring of the third joint bearing 10-2 is connected to the two ears 10-1-2 by a pin 10-4, and the outer ring of the third joint bearing 10-2 is fixedly connected to the connecting rod 10-3. Of course, only a reference embodiment is given in the figure. In the specific structure, the third joint bearing 10-2 does not necessarily have to be connected to the base 10-1 in the form of a connection with the two ears 10-1-2, and the outer ring of the third joint bearing can also be connected to the base 10-1. The inner ring of the three-joint bearing 10-2 is connected to the connecting rod 10-3, and the changes in various specific structural forms can be designed according to actual needs, but the overall plan always connects the two bases 10-1 together through the third joint bearing 10-2 and the connecting rod 10-3. In this way, after the two turnout beams 3 are connected together through the movable connecting piece 10, the spacing and position relationship between the two turnout beams can be guaranteed, and the degree of freedom can be released through the third joint bearing 10-2. When the turnout beam 3 is deformed due to temperature or vibration, the third joint bearing 10-2 can release the corresponding stress, reduce the internal stress concentration of the turnout beam, thereby avoiding the rigid connection from damaging the connection structure and improving the service life of the turnout beam. If only one movable connecting piece 10 is set in the connection structure, then the movable connecting piece 10 is preferably set at the end of the turnout beam 3 with a larger spacing, or at the end of the turnout beam 3 with a larger movable distance. Generally, the movable connecting piece 10 is set at the end of the turnout beam 3 that is farther away from the rotating device. Moreover, when using the movable connecting member 10, there is no need to consider the structural shape of the turnout beam (straight turnout beam or curved turnout beam). The third joint bearing 10-2 can make the base 10-1 adapt to the structural shape of the turnout beam. If the curvature of the turnout beam is too large and exceeds the adaptive range of the third joint bearing 10-2, it is necessary to set an inclined surface on the base 10-1 to adapt to the installation cooperation with the turnout beam. The inclined surface is selectively set on the base on the side of the turnout beam with a larger curvature. If both sides are curved turnout beams, the inclined surface can be installed on both sides.

[0068] In order to adapt to the turnout beams with different spacings, the connecting rod 10-3 in the movable connecting member 10 can be adjusted in length. Fig.12The figure shows a threaded sleeve 10-3-1 and a pair of threaded rods 10-3-2. Both ends of the threaded sleeve 10-3-1 are connected to the two threaded rods 10-3-2 respectively through threaded cooperation. The threaded rod 10-3-2 is fixedly connected to the third joint bearing 10-2. The threads on the two threaded rods 10-3-2 have opposite rotation directions. When the threaded sleeve 10-3-1 is screwed, the two threaded rods 10-3-2 can be extended or retracted into the threaded sleeve 10-3-1 to adjust the length of the connecting rod 10-3. A locking nut 10-3-3 is also provided on each threaded rod 10-3-2. After the length is adjusted, the length of the connecting rod 10-3 is locked by tightening the locking nut 10-3-3 to prevent the length change caused by vibration from changing the spacing and position relationship between the turnout beams. Of course, the figure only shows an embodiment. In practice, the positions of the threaded rod 10-3-2 and the threaded sleeve 10-3-1 can be interchanged, that is, the components arranged in the middle and connecting the two ends of the threaded rod 10-3-2 with the third joint bearing 10-2 are arranged as threaded sleeves 10-3-1. Similarly, the locking structure does not necessarily adopt the locking nut 10-3-3, and can also be locked by conventional locking structures such as top screws.

[0069] There is also a form in which a fixed connection piece is provided in the connection structure, such as Fig.13 The fixed connector 11 shown includes an intermediate pile 11-1, and a first connecting plate 11-2 and a second connecting plate 11-3 are connected at both ends of the intermediate pile 11-1. The first connecting plate 11-2 and the second connecting plate 11-3 can be fixedly connected to two turnout beams respectively. In order to adapt to turnout beams of different structural shapes, the first connecting plate 11-2 and the second connecting plate 11-3 can be provided with inclined surfaces according to the structural shape of the turnout beam to adapt to the contour of the curved turnout beam, so as to facilitate connection with the turnout beam. In order to adapt to the track spacing, a pad 11-4 is provided between the intermediate pile 11-1 and the first connecting plate 11-2 and / or the second connecting plate 11-3. By increasing the pad 11-4 or changing the thickness of the pad 11-4, the length of the fixed connector 11 can be adjusted, thereby eliminating assembly errors and adapting to the spacing between turnout beams.

[0070] Locking mechanism

[0071] like Fig.14The locking mechanism shown includes a thrust rod 8-1, a locking pin 8-2, a guide slide seat 8-3, and a locking seat 8-4, wherein the thrust rod 8-1 and the guide slide seat 8-3 are generally installed on a fixed track beam (the front stack beam and the rear stack beam in the line change system), the locking pin 8-2 is slidably arranged in the guide slide seat 8-3 and connected to the thrust rod 8-1, and the locking seat 8-4 is arranged on the turnout beam 3, the thrust rod 8-1 pushes the locking pin 8-2 to move in the guide slide seat 8-3, and the locking seat 8-4 is fixed on the turnout beam 3, and when the turnout beam 3 is docked with the front stack beam 1 and the rear stack beam 2, the thrust rod 8-1 drives the locking pin 8-2 to be inserted into the locking seat 8-4 to realize the turnout. The locking of the beam 3 position, the thrust rod 8-1 can be an electric push rod or a hydraulic rod. When the electric push rod is used as the thrust rod 8-1, the stroke can be controlled by PLC or it has its own limit, so the depth of the lock pin 8-2 inserted into the locking seat 8-4 can be controlled. In order to more conveniently control the stroke of the lock pin 8-2, the locking mechanism is also provided with a limit switch 8-5, which is used to control the stroke of the thrust rod 8-1. In this embodiment, the limit switch 8-5 is set on the locking seat 8-4. When the lock pin 8-2 is inserted into the locking seat 8-4 to a fixed depth, it touches the limit switch 8-5 so that the thrust rod 8-1 stops pushing. When the switch beam needs to change the line, the thrust rod 8-1 drives the lock pin 8-2 to withdraw from the locking seat 8-4, and then the switch beam 3 performs a rotary motion to change the line.

[0072] Compensation plate

[0073] like Fig.15 As shown, a compensation plate 9 is arranged at one end where the switch beam 3, the front stack beam 1 and the rear stack beam 2 are connected. The compensation plate 9 is arranged on the side walls of the switch beam 3, the front stack beam 1 and the rear stack beam 2 in a tooth shape. When the switch beam 3 is connected with the front stack beam 1 and the rear stack beam 2, the compensation plate 9 can cooperate with each other to fill the gap at the compensation position, thereby compensating for the gap at the connecting position. This is because if the straight gap guide wheel passes through, the vibration is large, and the gap guide wheel with oblique matching has moderate support to reduce the vibration.

[0074] The above-mentioned devices and mechanisms are integrated in the line-changing system. Spherical bearings are used in the slewing device, connecting device and running device, which can realize adaptive adjustment of the position relationship, compensate for the matching error of the turnout beam caused by temperature and vibration factors, and provide stable support and operating conditions. The installation position of the drum gear and rack assembly of the slewing drive mechanism can also adapt to the telescopic deformation of the turnout beam and provide stable drive. The combination of the above-mentioned devices and mechanisms improves the stable operation of the suspended track line-changing system as a whole.

Claims

1. A suspended track single-opening vehicle line changing system, comprising a front stack beam (1), a rear stack beam (2), a turnout beam (3) and a gantry beam (4), wherein the front stack beam (1) is provided with one, the rear stack beam (2) is provided with two, the turnout beam (3) is provided with two for connecting the front stack beam (1) and the rear stack beam (2), and the gantry beam (4) is provided with at least two respectively close to the two ends of the turnout beam (3) for hanging the turnout beam (3), characterized in that: A slewing device (5) for the turnout beam (3) to rotate around is provided between the portal beam (4) near one end of the rear stack beam (2) and one of the turnout beams (3); a slewing drive mechanism (6) for driving the turnout beam (3) to rotate around the slewing device (5) is provided between the portal beam (4) near one end of the front stack beam (1) and the turnout beam (3); a running mechanism (7) for supporting the turnout beam (3) and enabling it to travel is provided between the portal beam (4) and the turnout beam (3); locking mechanisms (8) are provided on the front stack beam (1) and the two rear stack beams (2); and a connecting device is provided between the two turnout beams (3); the connecting device is used to connect the two turnout beams (3) together; at least one pair of connecting devices is provided between the two turnout beams (3); the pair of connecting devices are respectively provided near the two ends of the turnout beam (3) to connect the pair of turnout beams (3) together; the pair of connecting devices The connecting device comprises at least one movable connecting member (10), the movable connecting member (10) comprising a pair of bases (10-1) respectively connected to two turnout beams (3), a third joint bearing (10-2) being provided on each of the bases (10-1), and a connecting rod (10-3) being provided between the pair of third joint bearings (10-2); the locking mechanism (8) comprising a thrust rod (8-1), a locking pin (8-2), a guide slide seat (8-3), and a locking seat (8-4); the locking pin (8-2) being slidably arranged on the guide slide seat (8-3) and connected to the thrust rod (8-1); the thrust rod (8-1) and the guide slide seat (8-3) being arranged on the front stack beam (1) or the rear stack beam (2); the locking seat (8-4) being arranged on the turnout beam (3); the thrust rod (8-1) being capable of driving the locking pin (8-2) to insert into or withdraw from the locking seat (8-4); The running mechanism (7) comprises a running track (7-1) installed on a gantry beam (4) and a group of roller assemblies (7-2) connected to a turnout beam (3); the roller assembly (7-2) comprises a support seat (7-2-1), a support shaft (7-2-2) and a roller (7-2-3); each of the rollers (7-2-3) rolls along a horizontal plane on the running track (7-1); a first joint bearing (7-2-4) is provided between the roller (7-2-3) and the support shaft (7-2-2); The slewing drive mechanism (6) comprises a power assembly (6-1), a drum gear (6-2) and a rack assembly (6-3); the drum gear (6-2) is arranged at the power output end of the power assembly (6-1); the power assembly (6-1) is mounted on a turnout beam (3); the axis of the drum gear (6-2) points to the axis of the slewing device (5) and is parallel to the horizontal plane; the rack assembly (6-3) is mounted on the portal beam (4) and comprises a group of straight racks (6-3-1) arranged in an arc shape.

2. A suspended track single-open vehicle line change system according to claim 1, characterized in that: A guide wheel compensation plate (9) is provided at the connection between the front stack beam (1), the turnout beam (3) and the rear stack beam (2); the compensation plates (9) are tooth-shaped and butt-jointed to fit each other to fill the gap.

3. A suspended track single-opening vehicle line changing system according to claim 1, characterized in that: The center of the arc formed by the arrangement and combination of the spur racks (6-3-1) is concentric with the rotation center of the turnout beam (3); and the power assembly (6-1) comprises a motor and a reducer.

4. A suspended track single-open vehicle line change system according to claim 1, characterized in that: The axis of each of the rollers (7-2-3) points toward the axis of the rotating device (5).

5. A suspended track single-open vehicle line change system according to claim 4, characterized in that: The running track (7-1) is arc-shaped, and the center of the arc is concentric with the center of the rotating device (5).

6. A suspended track single-open vehicle line change system according to claim 4 or 5, characterized in that: The running track (7-1) and the roller assembly (7-2) are arranged at an end away from the rotating device (5), a sliding guide rail (7-3) is provided on the portal beam (4) on the side close to the rotating device (5), a sliding frame (7-4) slidably arranged on the sliding guide rail (7-3) is installed on the turnout beam (3), and limit plates (7-3-1) are provided at both ends of the sliding guide rail (7-3).

7. A suspended track single-open vehicle line change system according to claim 6, characterized in that: A pair of sliding frames (7-4) are arranged on both sides of each of the turnout beams (3).

8. The suspended track single-opening vehicle line changing system according to claim 6, characterized in that: A copper plate (7-3-2) that is in sliding contact with the sliding frame (7-4) is provided on the sliding guide rail (7-3).

9. A suspended track single-open vehicle line change system according to claim 7, characterized in that: The number and position of the sliding guide rails (7-3) match those of the sliding racks (7-4); each of the sliding guide rails (7-3) is arc-shaped, and the center of the arc is concentric with the center of the rotating device (5).

10. The suspended track single-open vehicle line changing system according to claim 1, characterized in that: The slewing device (5) comprises an upper fixed seat (5-1) and a lower fixed seat (5-2), and a second joint bearing (5-3) is provided between the upper fixed seat (5-1) and the lower fixed seat (5-2).

11. A suspended track single-open vehicle line change system according to claim 10, characterized in that: The upper fixed seat (5-1) is provided with an inner cavity (5-1-1) for limiting the outer ring of the second joint bearing (5-3), and the lower fixed seat (5-2) is provided with a rotary shaft (5-4) capable of being inserted into the inner ring of the second joint bearing (5-3); a sealing ring (5-5) is provided between the upper fixed seat (5-1) and the rotary shaft (5-4).

12. A suspended track single-open vehicle line change system according to claim 11, characterized in that: The upper fixed seat (5-1) comprises an upper fixed column (5-1-2) and an upper fixed flange (5-1-3), and the inner cavity (5-1-1) is arranged in the upper fixed column (5-1-2); the lower fixed seat (5-2) comprises a lower fixed column (5-2-1) and a lower fixed flange (5-2-2), and the rotary shaft (5-4) is arranged on the lower fixed column (5-2-1).

13. A suspended track single-open vehicle line change system according to claim 12, characterized in that: A set of reinforcing ribs (5-6) is provided between the upper fixing column (5-1-2) and the upper fixing flange (5-1-3) and between the lower fixing column (5-2-1) and the lower fixing flange (5-2-2).

14. A suspended track single-open vehicle line change system according to claim 12, characterized in that: The rotary shaft (5-4) and the lower fixed column (5-2-1) are integrally formed.

15. The suspended track single-opening vehicle line changing system according to claim 12, characterized in that: The rotary shaft (5-4) is connected to the lower fixed column (5-2-1) via a flange.

16. A suspended track single-open vehicle line change system according to claim 12, characterized in that: A retaining ring (5-7) is provided at the end of the upper fixed column (5-1-2) to prevent the second joint bearing (5-3) from falling off from the inner cavity (5-1-1), and the sealing ring (5-5) is arranged between the retaining ring (5-7) and the rotary shaft (5-4).

17. A suspended track single-open vehicle line change system according to claim 12, characterized in that: A limiting boss (5-1-4) is provided in the inner cavity (5-1-1), and a retaining ring (5-7) is installed at the end of the upper fixed column (5-1-2) to tighten the second joint bearing (5-3) against the limiting boss (5-1-4).

18. A suspended track single-open vehicle line change system according to claim 17, characterized in that: A bearing pressing sleeve (5-8) is provided between the retaining ring (5-7) and the outer ring of the second joint bearing (5-3).

19. The suspended track single-opening vehicle line changing system according to claim 1, characterized in that: The length of the connecting rod (10-3) is adjustable, and an inclined surface is provided on one side where at least one of the bases (10-1) is connected to the turnout beam (3).

20. A suspended track single-open vehicle line change system according to claim 19, characterized in that: The connecting rod (10-3) comprises a threaded sleeve (10-3-1), and threaded rods (10-3-2) are respectively threadedly connected at both ends of the threaded sleeve (10-3-1), and each of the threaded rods (10-3-2) is respectively connected to the third joint bearing (10-2) on the side where it is located, and a locking nut (10-3-3) is also arranged on each of the threaded rods (10-3-2).

21. The suspended track single-opening vehicle line changing system according to claim 1, characterized in that: The pair of connection devices also includes a fixed connection member (11), the fixed connection member (11) includes an intermediate pile (11-1), and a first connection plate (11-2) and a second connection plate (11-3) are provided at both ends of the intermediate pile (11-1) and are respectively connected to two turnout beams (3).

22. A suspended track single-open vehicle line change system according to claim 21, characterized in that: The first connecting plate (11-2) and the second connecting plate (11-3) are connected to the middle pile (11-1) via flanges, and at least one of the first connecting plate (11-2) and the second connecting plate (11-3) is provided with an inclined surface; and a pad (11-4) is provided between the middle pile (11-1) and the first connecting plate (11-2) and / or the second connecting plate (11-3).

23. A suspended track single-opening vehicle line changing system according to claim 22, characterized in that: The movable connecting member (10) is arranged at an end away from the rotating device (5), and the fixed connecting member (11) is arranged at an end close to the rotating device (5).

24. The suspended track single-opening vehicle line changing system according to claim 1, characterized in that: The thrust rod (8-1) is an electric thrust rod or a hydraulic thrust rod.

25. The suspended track single-opening vehicle line changing system according to claim 1, characterized in that: The locking mechanism (8) further comprises a limit switch (8-5), wherein the limit switch (8-5) is arranged on the locking seat (8-4).

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