Eight-wheel turnout transfer device

Abstract

Provided is an eight-wheel turnout transfer device, belonging to the technical field of railway engineering machinery, comprising: a front frame; a rear frame, which is symmetrically arranged with the front frame; an equalizing beam, which is carried on the front frame and the rear frame at both ends thereof, and which is movably connected with the front frame and the rear frame at four corners thereof; a rotary horizontal movement mechanism, which is rotatably connected to the middle of the upper portion of the equalizing beam through a friction pair; and a running system, which is arranged on the front and rear ends of the front frame and on the front and rear ends of the rear frame. The entire device adopts the structure form of carrying the front and rear frames by the equalizing beam, so that the load of each wheel in the entire device is more uniform, and in the case of partial load, the wheel load is ensured not to be overweight, thereby effectively protecting the steel rail while completing the work; the device can complete the short-distance transportation of the entire turnout, and can significantly improve the safety and work efficiency in the turnout transfer process.

Description

Technical Field

[0001] This invention belongs to the field of railway engineering machinery technology, specifically relating to an eight-wheel turnout transfer device. Background Technology

[0002] With the rapid development of my country's railway transportation industry, the construction mileage of railways is also increasing. Turnouts, as crucial hubs connecting two different lines, are an indispensable part of railway lines. Turnouts are characterized by their large number, short lifespan, complex structure, and heavy maintenance workload. Therefore, replacing turnouts on railway lines is a labor-intensive but unavoidable task. During the replacement process, transferring the turnouts is an essential and crucial step, especially the transfer of entire sets of turnouts. Due to their long longitudinal span, wide lateral span, and heavy weight, they are prone to interference with high-pole signals and track clearances around the line during transfer. There has never been a good method to solve this problem. Therefore, it is necessary to improve existing methods to adapt to the needs of rapid railway development.

[0003] The existing turnout replacement device can complete the transfer and replacement of the entire turnout. However, due to the influence of the track conditions, the turnout replacement device cannot smoothly overcome obstacles such as low-post signals and milestones. Therefore, it is necessary to design a turnout transfer device to complete the obstacle avoidance work. Summary of the Invention

[0004] The technical problem solved by this invention is to provide an eight-wheeled turnout transfer device. This invention mainly solves two technical problems: First, it utilizes four turnout transfer devices to transfer the entire set of turnouts over short distances. During the transfer process, it can pass through curves with a minimum radius of 145mm. If there are high-mast signals and poles on both sides of the track, the four turnout transfer devices can cooperate to allow the turnouts to avoid the high-mast signals and poles (the half-width of the high-mast signals and poles is 2450mm). Second, it utilizes one or two turnout transfer devices to assist the turnout replacement device in obstacle avoidance. When assisting the turnout replacement device in obstacle avoidance, one turnout transfer device replaces one pair of tracked outriggers of the turnout replacement device, thus providing support for the turnout replacement device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An eight-wheel turnout transfer device, the eight-wheel turnout transfer device comprising:

[0007] Front frame;

[0008] The rear frame is symmetrically arranged with the front frame.

[0009] An equalizing beam is mounted on the front frame and the rear frame at both ends, and the four corners of the equalizing beam are movably connected to the front frame and the rear frame;

[0010] A rotating and transverse moving mechanism is movably connected to the middle of the upper part of the equalizing beam through a friction pair;

[0011] A running system is arranged on the front and rear ends of the front frame and the front and rear ends of the rear frame.

[0012] In the preferred mode of the above scheme, the front frame is connected by a front end beam, a rear end beam, a side beam, and an equalizing beam mounting seat, the side beam is provided with two parallel side beams, the front end beam is connected to the front ends of the two side beams, the rear end beam is connected to the rear ends of the two side beams, and the equalizing beam mounting seat is arranged on the outer side of the middle of the two side beams; the rear frame has the same structure as the front frame.

[0013] In the preferred mode of the above scheme, the running system includes a driving wheel system arranged on both sides of one end of the front frame and the rear frame and a driven wheel system arranged on both sides of the other end;

[0014] The driving wheel system includes a driving wheel frame, a driving wheel, and a speed reducer, the driving wheel frame is connected to the corresponding front frame and rear frame, the driving wheel is mounted on the driving wheel frame, and the speed reducer is connected to the driving wheel;

[0015] The driven wheel system includes a driven wheel frame, a driven wheel, and an axle, the driven wheel frame is connected to the corresponding front frame and rear frame, and the driven wheel is supported on the driven wheel frame through the axle;

[0016] The driving wheel frame and the driven wheel frame are connected to the corresponding front frame and rear frame through a pin shaft II, and a compression spring is arranged between the driving wheel frame, the driven wheel frame, and the corresponding front frame and rear frame.

[0017] In the preferred mode of the above scheme, the equalizing beam is connected by a side beam, a middle beam, and a lifting seat; the side beam is provided with two parallel side beams, the middle beam is connected to the middle of the two side beams, the front and rear ends of the two side beams of the equalizing beam are overlapped on the equalizing beam mounting seats on both sides of the front frame and the rear frame and connected to the equalizing beam mounting seats using four pin shafts I, and the two ends of the two side beams are provided with lifting seats.

[0018] In the preferred mode of the above scheme, limiting blocks for limiting the swing angle of the front and rear frames relative to the equalizing beam are arranged on both sides of the connection between the side beam and the equalizing beam mounting seat.

[0019] In the preferred mode of the above scheme, the rotating and transverse moving mechanism comprises a transverse moving platform, a transverse moving base, a mechanism base, a transverse moving oil cylinder, and a rotating table, the transverse moving platform is arranged on the upper part of the transverse moving base and is constrained by a friction pair, the two ends of the transverse moving oil cylinder are connected with the transverse moving platform and the transverse moving base respectively, the transverse moving base is rotationally connected with the mechanism base through the rotating table, and the mechanism base is fixed on the middle beam of the equalizing beam through bolt connection.

[0020] In the preferred mode of the above scheme, the height increasing tool is used to be placed on the rotating and transverse moving mechanism for height increasing when the transfer turnout passes the platform or the separate auxiliary track laying device avoids obstacles.

[0021] In the preferred mode of the above scheme, the front frame is provided with a power system and a hydraulic system, and the rear frame is provided with an electrical system.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] 1. The whole device adopts the structure form that the equalizing beam carries the front and rear frames, so that the load of each wheel in the whole device is more uniform, and in the case of partial load, the wheel load is ensured not to be overweight, thereby effectively protecting the rail while completing the operation; the device can complete the short distance transportation of the whole turnout, and can significantly improve the safety and working efficiency in the process of turnout transfer;

[0024] 2. The rotating and transverse moving mechanism on the device can transversely move and rotate the turnout, can assist the turnout laying device to avoid obstacles, can make up for the shortcomings of the turnout laying device, and can improve the working efficiency of the turnout laying device. The cooperation of four turnout transfer devices can complete the transfer work of the whole turnout, can pass the curve with a minimum curve radius of 145 m in the transfer process, and can avoid obstacles of high column signal machines and line poles in the transfer process. In cooperation with the height increasing tool, the whole turnout can be transferred to pass over the high platform; two turnout transfer devices can assist the turnout laying device in the transfer state and the self-walking state to pass the milestone and the low column signal machine when the turnout height is 0 mm and 600 mm respectively;

[0025] 3. In the scheme, the friction pair and the pin shaft are used to constrain the two frames and the equalizing beam, so that the whole device can smoothly pass the curve;

[0026] 4. In the scheme, the walking system and the front and rear frames adopt the structure of approximate independent suspension, so as to prevent the wheel load reduction rate from being too high when the track is uneven; BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the present application;

[0028] Figure 2Structure diagram of front and rear frame in the application;

[0029] Figure 3 Structure diagram of equalizing beam in the application;

[0030] Figure 4 Structure diagram of rotating and moving mechanism in the application Figure 1 ;

[0031] Figure 5 Structure diagram of rotating and moving mechanism in the application Figure 2 ;

[0032] Figure 6 Working principle diagram of turnout transfer device under flat track transfer working condition in the embodiment of the application;

[0033] Figure 7 Working principle diagram of turnout transfer device when line rod limit is located at the outer side of the curve and close to the main line of the turnout under the working condition of transferring the whole set of turnout in the curve in the embodiment of the application;

[0034] Figure 8 Working principle diagram of turnout transfer device when line rod limit is located at the outer side of the curve and close to the side line of the turnout under the working condition of transferring the whole set of turnout in the curve in the embodiment of the application;

[0035] Figure 9 Working principle diagram of turnout transfer device when line rod limit is located at the inner side of the curve and close to the main line of the turnout under the working condition of transferring the whole set of turnout in the curve in the embodiment of the application;

[0036] Figure 10 Working principle diagram of turnout transfer device when line rod limit is located at the inner side of the curve and close to the side line of the turnout under the working condition of transferring the whole set of turnout in the curve in the embodiment of the application;

[0037] Figure 11 Working principle diagram of obstacle avoidance of auxiliary turnout laying and replacing device and turnout at the same time when the height of track bed is 0mm under the working condition of obstacle avoidance of auxiliary turnout laying and replacing device in the embodiment of the application;

[0038] Figure 12 Working principle diagram of obstacle avoidance of auxiliary turnout laying and replacing device when the height of track bed is 0mm under the working condition of obstacle avoidance of auxiliary turnout laying and replacing device in the embodiment of the application;

[0039] Figure 13 Working principle diagram of obstacle avoidance of auxiliary turnout laying and replacing device and turnout at the same time when the height of track bed is 600mm under the working condition of obstacle avoidance of auxiliary turnout laying and replacing device in the embodiment of the application;

[0040] Figure 14 Working principle diagram of obstacle avoidance of auxiliary turnout laying and replacing device when the height of track bed is 600mm under the working condition of obstacle avoidance of auxiliary turnout laying and replacing device in the embodiment of the application. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Please see Figures 1-14 The embodiments of the present invention are described in detail below.

[0044] An eight-wheel turnout transfer device, see Figure 1 As shown, the eight-wheel turnout transfer device includes:

[0045] Front frame 1; see Figure 2 As shown, the front frame 1 is composed of a front beam 101, a rear beam 102, side beams 103, and a balance beam mounting base 104. There are two side beams 103 that are parallel to each other. The front beam 101 is connected to the front end of the two side beams 103, and the rear beam 102 is connected to the rear end of the two side beams 103. The balance beam mounting base 104 is provided on the outer side of the middle of the two side beams 103.

[0046] The rear frame 3 is symmetrically arranged with the front frame 1; the rear frame 3 has the same structure as the front frame 1.

[0047] Equilibrium Beam 2, see Figure 3 As shown, the front and rear ends of the equalizing beam 2 are mounted on the front frame 1 and the rear frame 3, and the four corners of the equalizing beam 2 are movably and detachably connected to the front frame 1 and the rear frame 3.

[0048] The equalizing beam 2 is composed of side beams 210, a middle beam 220 and lifting seats 230; the side beams 210 are two and parallel to each other, the middle beam 220 is connected between the two side beams 210, the front and rear ends of the two side beams 210 of the equalizing beam 2 are respectively overlapped on the equalizing beam mounting seats 104 on the two sides of the front frame 1 and the rear frame 3 and connected with the equalizing beam mounting seats 104 by four pin shafts I 10. The lower parts of the two ends of the two side beams 210 are respectively provided with a lifting seat 230, which plays a supporting role for the device when the lifting turnout transfer device is used.

[0049] When the device needs to pass through a curve, the two diagonal pin shafts I 10 are pulled out to release the freedom between the equalizing beam 2 and the front frame 1 and the rear frame 3, so that the device can smoothly pass through the curve.

[0050] When passing through the curve, the swing angle of the front frame 1 and the rear frame 3 relative to the equalizing beam 2 is less than two degrees, so that the swing angle limiting blocks 11 for limiting the swing angle of the front and rear frames relative to the equalizing beam 2 are arranged on the two sides of the connection between the side beams 210 and the equalizing beam mounting seats 104, so that the swing angle between the front frame 1 and the rear frame 3 and the equalizing beam 2 is limited to be not more than two degrees.

[0051] The rotating and transverse moving mechanism 4, as shown in Figure 4 and 5 , is rotatably connected to the upper middle part of the equalizing beam 2 by a friction pair. Specifically, the rotating and transverse moving mechanism 4 includes a transverse moving platform 410, a transverse moving base 420, a mechanism base 430, a transverse moving oil cylinder 440 and a rotating table 450. The transverse moving platform 410 is arranged on the upper part of the transverse moving base 420 and the two are connected by a friction pair. The two ends of the transverse moving oil cylinder 440 are respectively connected to the transverse moving platform 410 and the transverse moving base 420. The transverse moving base 420 is rotatably connected to the mechanism base 430 through the rotating table 450. The mechanism base 430 is fixed on the middle beam 220 of the equalizing beam 2 by bolt connection.

[0052] The walking system 8, as shown in Figure 2 , is arranged on the front and rear ends of the front frame 1 and the front and rear ends of the rear frame 3. The walking system 8 includes a driving wheel system 810 arranged on both sides of one end of the front frame 1 and the rear frame 3 and a driven wheel system 820 arranged on both sides of the other end.

[0053] The driving wheel system 810 includes a driving wheel frame 811, a driving wheel 812 and a speed reducer 813. The driving wheel frame 811 is connected with the corresponding front frame 1 and rear frame 3. The driving wheel 812 is mounted on the driving wheel frame 811. The speed reducer 813 is connected with the driving wheel 812.

[0054] The driven wheel system 820 comprises a driven wheel frame 821 connected with the corresponding front frame 1 and rear frame 3, a driven wheel 822 supported on the driven wheel frame 821 through an axle 823;

[0055] The driving wheel frame 811 and the driven wheel frame 821 are connected with the corresponding front frame 1 and rear frame 3 through a pin shaft II 840, and a compression spring 830 is additionally arranged between the driving wheel frame 811, the driven wheel frame 821 and the corresponding front frame 1 and rear frame 3. Thus, it is ensured that the device can always ensure the wheel to be in contact with the rail surface when the track is uneven, and the pressure difference between the same wheel pairs is reduced.

[0056] Further, a heightening tool 9 is provided, as shown in Figure 1 When the device avoids obstacles in the process of transferring the turnout or laying and replacing the device alone, the heightening tool 9 needs to be placed on the transverse moving platform 410 of the rotating transverse moving mechanism 4, and the heightening tool is limited by the limiting mechanism of the heightening tool.

[0057] The front frame 1 is provided with a power system 5 and a hydraulic system 6, and the rear frame 3 is provided with an electrical system 7.

[0058] Working principle: When the device avoids obstacles in the process of transferring the turnout or laying and replacing the device, the external load acts on the rotating transverse moving mechanism 4, and then is transmitted to the front and rear frames through the equalizing beam 2, and finally is transmitted to the eight wheels, so that the eight wheels are uniformly stressed.

[0059] The entire device can be remotely controlled during the construction process, mainly controlling the running of the turnout transfer device and the transverse movement of the rotating transverse moving mechanism. The rotating function of the rotating transverse moving mechanism in the horizontal plane is realized by external force.

[0060] When transferring the whole turnout, four eight-wheel turnout transfer devices need to work cooperatively, wherein the rotating transverse moving mechanisms of the front and rear two turnout transfer devices are provided with transverse moving oil cylinders, and the rotating transverse moving mechanisms of the middle two turnout transfer devices are not provided with transverse moving oil cylinders (only have passive transverse moving function), and the distance between the four turnout transfer devices arranged in pairs is 12 m. When transferring the whole turnout, there are two working conditions, one is the working condition of transferring the whole turnout on a straight track, and the other is the working condition of transferring the whole turnout on a curved track. The working principles of the turnout transfer devices in the two working conditions will be introduced respectively.

[0061] I. The working principle of the turnout transfer device in the working condition of transferring the whole turnout on a straight track, as shown in Figure 6 ;

[0062] (1) Place the whole turnout on the four turnout transfer devices, and ensure that the front and rear ends of the turnout are suspended by equal lengths when placing the turnout, so as to ensure that the geometric center line of the turnout coincides with the geometric center line of the turnout transfer device.

[0063] (2) Lock the horizontal movement function of the rotating horizontal movement mechanism on the two turnout transfer devices before and after;

[0064] (3) Complete the transfer of the entire turnout on the straight track. The entire turnout will not interfere with the line rod limit when it is transferred on the straight track.

[0065] II. The working principle of the turnout transfer device when transferring the entire turnout on a curve, as shown in Figure 7 ;

[0066] When the turnout transfer device transfers the entire turnout through the curve, the turnout will interfere with the high column signal on both sides of the line and the line rod (the high column signal and the line rod will not appear on both sides of the turnout at the same time, hereinafter referred to as line rod limit). Therefore, before the turnout enters the curve, the position of the turnout relative to the turnout transfer device needs to be adjusted. The transfer of the turnout on a curve is divided into four conditions, one is that the line rod limit is located on the outside of the curve and close to the main line of the turnout; two is that the line rod limit is located on the outside of the curve and close to the side line of the turnout; three is that the line rod limit is located on the inside of the curve and close to the main line of the turnout; four is that the line rod limit is located on the inside of the curve and close to the side line of the turnout. The working principle of the turnout transfer device under these four conditions is described below.

[0067] 1. The working principle of the turnout transfer device when the line rod limit is located on the outside of the curve and close to the main line of the turnout

[0068] (1) Adjust the horizontal movement of the rotating horizontal movement mechanism on the No. 1 turnout transfer device by 400 mm upwards;

[0069] (2) Lock the horizontal movement function of the rotating horizontal movement mechanism on the No. 1 turnout transfer device;

[0070] (3) Adjust the horizontal movement of the rotating horizontal movement mechanism on the No. 4 turnout transfer device by 400 mm downwards and lock its horizontal movement function;

[0071] (4) The turnout transfer device walks forward and the entire turnout passes through the curve (the No. 2 and No. 3 turnout transfer devices are in a following state during the entire operation process).

[0072] 2. The working principle of the turnout transfer device when the line rod limit is located on the outside of the curve and close to the side line of the turnout, as shown in Figure 8 ;

[0073] (1) Adjust the horizontal movement of the rotating horizontal movement mechanism on the No. 1 turnout transfer device by 400 mm downwards;

[0074] (2) Lock the horizontal movement function of the rotating horizontal movement mechanism on the No. 1 turnout transfer device;

[0075] (3) Adjust the lateral shift of the rotating lateral shift mechanism on the No. 4 turnout transfer device to 400 mm upward and lock the lateral shift function;

[0076] (4) The turnout transfer device walks forward and the whole set of turnouts pass the curve (the No. 2 and No. 3 turnout transfer devices are in the follow-up state during the whole operation process).

[0077] 3. The working principle of the turnout transfer device when the line rod limit is located inside the curve and close to the main line of the turnout, see Figure 9 ;

[0078] (1) Adjust the lateral shift of the rotating lateral shift mechanism on the No. 1 turnout transfer device to 600 mm upward;

[0079] (2) Lock the lateral shift function of the rotating lateral shift mechanism on the No. 1 turnout transfer device;

[0080] (3) Adjust the lateral shift of the rotating lateral shift mechanism on the No. 4 turnout transfer device to 600 mm upward and lock the lateral shift function;

[0081] (4) The turnout transfer device walks forward and the whole set of turnouts pass the curve (the No. 2 and No. 3 turnout transfer devices are in the follow-up state during the whole operation process).

[0082] 4. The working principle of the turnout transfer device when the line rod limit is located inside the curve and close to the side line of the turnout, see Figure 10 ;

[0083] (1) Adjust the rotating lateral shift mechanism on the No. 1 turnout transfer device to be in the lateral shift lock state;

[0084] (2) Adjust the lateral shift of the rotating lateral shift mechanism on the No. 4 turnout transfer device to 400 mm upward and lock the lateral shift function;

[0085] (3) The turnout transfer device walks forward and the whole set of turnouts pass the curve (the No. 2 and No. 3 turnout transfer devices are in the follow-up state during the whole operation process).

[0086] In the process of transporting new and old turnout by turnout replacement device, if the milestone or low column signal on the railway line is encountered, due to the special position of the two, the turnout replacement device cannot pass through its own function, and needs to assist the turnout transfer device to avoid obstacles. The working state and working principle of the eight-wheel turnout transfer device in assisting the turnout replacement device to avoid obstacles are as follows: the auxiliary obstacle avoidance working condition is divided into four kinds, one is that the ballast height is 0mm, and the turnout replacement device and the turnout are assisted to avoid obstacles at the same time; two is that the turnout height is 0mm, and only the turnout replacement device is assisted to avoid obstacles; three is that the ballast height is 600mm, and the turnout replacement device and the turnout are assisted to avoid obstacles at the same time; four is that the turnout height is 600mm, and only the turnout replacement device is assisted to avoid obstacles. The following four working conditions are introduced respectively:

[0087] 1. The ballast height is 0mm, and the turnout replacement device and the turnout are assisted to avoid obstacles at the same time, as shown in Figure 11 ;

[0088] The turnout replacement device 13 stops walking when encountering obstacles 14, adjusts the track leg of the first pair of track legs to an appropriate height (ensures that the turnout transfer device passes smoothly), and the turnout transfer device 15 walks to the bottom of the first pair of track legs of the turnout replacement device 13 by self walking. The turnout replacement device 13 adjusts the height of the track leg again so that the turnout 12 is seated on the bearing platform of the turnout replacement device, and the first pair of track legs of the turnout replacement device 13 is retracted. The first pair of track legs of the turnout replacement device continues to walk forward, so that the first pair of track legs crosses the obstacle; the first pair of track legs of the turnout replacement device is lowered to the ground, and all track legs are raised to an appropriate height at the same time, so that the turnout leaves the cross-moving platform 410 of the turnout transfer device and ensures that the turnout replacement device can pass smoothly; control two turnout replacement devices to walk to the middle two pairs of track legs of the turnout replacement device by self walking, and assist the middle two pairs of track legs to complete obstacle avoidance in the same way, and then complete the obstacle avoidance of the last pair of track legs.

[0089] 2. The ballast height is 0mm, and only the turnout replacement device is assisted to avoid obstacles, as shown in Figure 12 ;

[0090] The turnout laying device 13 stops walking when encountering an obstacle 14, adjusts the crawler legs of the device to an appropriate height (to ensure the smooth passing of the turnout transfer device), installs the heightening tool 9 of the turnout transfer device 15 on the transverse platform 410 of the turnout transfer device, and the turnout transfer device walks to the position directly below the first pair of crawler legs of the turnout laying device by self-walking. The turnout laying device adjusts the height of the crawler legs again so that the turnout is seated on the heightening tool 9 of the turnout transfer device 15, and the turnout laying device retracts the first pair of crawler legs. The turnout laying device continues to walk forward so that the first pair of crawler legs crosses the obstacle. The first pair of crawler legs of the turnout laying device is lowered to the ground, and all the crawler legs are raised to an appropriate height at the same time, so that the turnout laying device leaves the heightening tool 9 of the turnout transfer device and ensures the smooth passing of the turnout laying device. The two turnout transfer devices 15 are controlled to walk to the positions below the middle two pairs of crawler legs of the turnout laying device by self-walking, and the middle two pairs of crawler legs complete the obstacle avoidance in the same way, and then the last pair of crawler legs completes the obstacle avoidance.

[0091] 3. When the height of the ballast bed is 600 mm, the turnout laying device and the turnout are assisted to avoid obstacles at the same time, as shown in Figure 13

[0092] The turnout laying device 13 stops walking when encountering an obstacle 14, adjusts the crawler legs of the device to an appropriate height (to ensure the smooth passing of the turnout transfer device), and the turnout transfer device 15 walks to the position directly below the first pair of crawler legs of the turnout laying device by self-walking. The turnout laying device adjusts the height of the crawler legs again so that the turnout is seated on the transverse platform 410 of the turnout transfer device 15, and the turnout laying device retracts the first pair of crawler legs. The turnout laying device continues to walk forward so that the first pair of crawler legs crosses the obstacle. The first pair of crawler legs of the turnout laying device is lowered to the ground, and all the crawler legs are raised to an appropriate height at the same time, so that the turnout leaves the transverse platform 410 of the turnout transfer device and ensures the smooth passing of the turnout laying device. The two turnout transfer devices 15 are controlled to walk to the positions below the middle two pairs of crawler legs of the turnout laying device by self-walking, and the middle two pairs of crawler legs complete the obstacle avoidance in the same way, and then the last pair of crawler legs completes the obstacle avoidance.

[0093] 4. When the height of the ballast bed is 600 mm, only the turnout laying device is assisted to avoid obstacles, as shown in Figure 14

[0094] ​​The turnout laying device 13 stops walking when encountering the obstacle 14, adjusts the track legs of the device to a suitable height (ensures the smooth passing of the turnout transfer device), the turnout transfer device 15 walks to the first pair of track legs of the turnout laying device by self walking, the turnout laying device adjusts the height of the track legs again so that the turnout laying device is seated on the transverse moving platform 410 of the turnout transfer device 15, the turnout laying device retracts the first pair of track legs, the turnout laying device continues to walk forward so that the first pair of track legs crosses the obstacle; the first pair of track legs of the turnout laying device is lowered to the ground, and all the track legs are raised to a suitable height at the same time, so that the turnout laying device leaves the transverse moving platform 410 of the turnout transfer device and ensures that the turnout laying device can pass smoothly; the two turnout transfer devices 15 walk to the middle two pairs of track legs of the turnout laying device by self walking, and the middle two pairs of track legs complete obstacle avoidance in the same way, and then the last pair of track legs completes obstacle avoidance.

[0095] The whole device adopts the structure form that the equalizing beam carries the front and rear frames, the load of each wheel in the whole device is more uniform, in the case of unbalanced load, the wheel load is not overweight, so that the steel rail is effectively protected while the work is completed; the whole set of turnout can be transported for a short distance by using the device, and the safety and work efficiency in the turnout transfer process can be significantly improved.

[0096] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and it is intended to be encompassed within the application all changes which come within the meaning and range of equivalency of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0097] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An eight-wheel turnout transfer device, characterized by: The eight-wheel turnout transfer device comprises: a front frame (1); a rear frame (3) symmetrically arranged with the front frame (1); a balance beam (2) loaded on the front frame (1) and the rear frame (3) at both ends thereof, and movably connected with the front frame (1) and the rear frame (3) at four corners thereof; a rotating and transverse moving mechanism (4) movably connected with the balance beam (2) at the upper middle part thereof through a friction pair; a running system (8) arranged on the front frame (1) and the rear frame (3) at both ends thereof; a power system (5) and a hydraulic system (6) arranged on the front frame (1), and an electrical system (7) arranged on the rear frame (3); a height increasing tool (9) arranged on the rotating and transverse moving mechanism (4) for height increasing when the transfer turnout is too high to pass a platform or to avoid an obstacle of a separate auxiliary laying and changing device; the front frame (1) is connected by a front end beam (101), a rear end beam (102), a side beam (103) and a balance beam mounting seat (104), the side beam (103) is provided with two parallel side beams (103), the front end beam (101) is connected to the front ends of the two side beams (103), the rear end beam (102) is connected to the rear ends of the two side beams (103), and the balance beam mounting seat (104) is arranged on the outer side of the middle of the two side beams (103); the rear frame (3) is the same as the front frame (1) in structure; the balance beam (2) is connected by a side beam (210), a middle beam (220) and a lifting seat (230), the side beam (210) is provided with two parallel side beams (210), the middle beam (220) is connected to the middle of the two side beams (210), the front and rear ends of the two side beams (210) of the balance beam (2) are respectively overlapped on the balance beam mounting seats (104) on the two sides of the front frame (1) and the rear frame (3) and connected with the balance beam mounting seats (104) by four pin shafts I (10), and the lifting seat (230) is arranged on the lower part of the two ends of the two side beams (210).

2. A eight-wheel turnout transfer device according to claim 1, characterized in that: the running system (8) comprises a driving wheel system (810) arranged on both sides of one end of the front frame (1) and the rear frame (3) and a driven wheel system (820) arranged on both sides of the other end thereof; the driving wheel system (810) comprises a driving wheel frame (811), a driving wheel (812) and a speed reducer (813), the driving wheel frame (811) is connected with the corresponding front frame (1) and rear frame (3), the driving wheel (812) is mounted on the driving wheel frame (811), and the speed reducer (813) is connected with the driving wheel (812); the driven wheel system (820) comprises a driven wheel frame (821), a driven wheel (822) and an axle (823), the driven wheel frame (821) is connected with the corresponding front frame (1) and rear frame (3), and the driven wheel (822) is supported on the driven wheel frame (821) through the axle (823). The driving wheel frame (811) and the driven wheel frame (821) are connected with the corresponding front frame (1) and rear frame (3) through a pin shaft II (840), and a compression spring (830) is additionally arranged between the driving wheel frame (811), the driven wheel frame (821) and the corresponding front frame (1) and rear frame (3).

3. A eight-wheel turnout transfer device according to claim 1, characterized in that: The two sides of the connection between the side beam (210) and the equalizing beam mounting seat (104) are provided with limiting pads (11) for limiting the swing angle of the front and rear frames relative to the equalizing beam (2).

4. A eight-wheel turnout transfer device according to claim 1, characterized in that: The rotating and transverse moving mechanism (4) comprises a transverse moving platform (410), a transverse moving base (420), a mechanism base (430), a transverse moving oil cylinder (440) and a rotating table (450). The transverse moving platform (410) is arranged on the upper portion of the transverse moving base (420) and is constrained as a friction pair therebetween. The two ends of the transverse moving oil cylinder (440) are connected with the transverse moving platform (410) and the transverse moving base (420) respectively. The transverse moving base (420) is relatively rotatably connected with the mechanism base (430) through the rotating table (450). The mechanism base (430) is fixed on the middle beam (220) of the equalizing beam (2) through bolt connection.

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