Structure and arrangement method of combined turnout in throat area of vehicle base

Abstract

The invention discloses a structure and an arrangement method of a combined turnout in a throat area of a vehicle base, and relates to the technical field of vehicle traffic, and the method comprises the following steps: dividing a plane station track in the vehicle base into a plurality of storehouse station tracks and a plurality of throat area station tracks; the position and angle of an access section line are determined according to the land area and shape of the vehicle base, and the access section line is connected with the warehouse station track; the throat area station tracks are combined into a station track of a basic turnout group according to the set number, and a main station track of the basic turnout group is determined; calculating the angle of a main station track, and calculating the angle of a side station track according to the result; the warehouse station tracks correspond to the station tracks in the basic turnout group in sequence, and position coordinates of the main station track and the side station tracks are obtained; and according to the angle and position coordinates of the main station track and the side station track, one end of the station track of the basic turnout group is connected with the warehouse station track through a guide curve. According to the method, the vehicle base throat area turnout can be arranged more efficiently, regularly and automatically, and the design scheme is more scientific and reasonable.

Description

Technical Field

[0001] The present invention relates to the field of vehicle traffic technology, and more specifically, to a structure and arrangement method of a combined turnout in a throat area of ​​a vehicle base. Background Art

[0002] The vehicle base is an important part of the urban rail transit line. It is used for parking, maintenance and overhaul of rail transit vehicles. Its engineering has the characteristics of large area, complex system and high cost. The throat area is where the turnouts converge and is the only way for various operations in the vehicle base. Reasonable connection of the throat area is a layout plan that meets the requirements of smooth process flow and intensive land use.

[0003] The design of the vehicle base throat area mainly determines the location of the turnout and the line connection, which has the characteristics of complex lines, many constraints, and various schemes. However, at present, the scheme of the vehicle foundation throat area design mainly relies on manual drawing by personnel, the design efficiency is relatively general, and the rationality of the scheme is greatly affected by the design experience of personnel. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a structure and arrangement method of a combined turnout in the throat area of ​​a vehicle base, which can arrange the turnout in the throat area of ​​the vehicle base more efficiently, regularly and automatically, making the design scheme more scientific and reasonable.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a structure of a combined turnout in a throat area of ​​a vehicle base, which is arranged in the throat area and comprises:

[0007] Several warehouse tracks arranged parallel to each other;

[0008] Several throat areas;

[0009] Entry and exit segment lines;

[0010] Among them, one end of several of the throat area tracks is connected to several of the warehouse tracks respectively, and the other end of several of the throat area tracks is connected to the adjacent throat area tracks or the entry and exit lines to form a single turnout.

[0011] As for the structure of the combined turnout in the throat area of ​​the vehicle base mentioned above, further, a plurality of the single-opening turnouts are combined into a basic turnout group.

[0012] As for the structure of the combined turnout in the throat area of ​​the vehicle base mentioned above, further, a level crossing is arranged between the warehouse track and the throat area track.

[0013] In a second aspect, the present invention provides a method for arranging a combined turnout in a throat area of ​​a vehicle base, based on the structure of the combined turnout in the throat area of ​​the vehicle base, which comprises the following steps:

[0014] Divide the horizontal tracks in the vehicle base into several warehouse tracks and several throat area tracks;

[0015] Determine the position and angle of the entry and exit line according to the area and shape of the vehicle base, and connect the entry and exit line with the warehouse track;

[0016] Combining a set number of the throat area tracks into a track of a basic turnout group, and determining a main track of the basic turnout group;

[0017] Calculating the angle of the main track, and deducing the angles of side tracks other than the main track according to the calculation result;

[0018] The warehouse track is matched with the track in the basic turnout group in sequence, and the position coordinates of the main track and the side track are calculated according to the position of the level crossing and the set principle;

[0019] According to the angle and position coordinates of the main track and the side track, one end of the track of the basic switch group is connected to the warehouse track by a guide curve, and the other end of the track of the basic switch group extends to intersect with the track of the adjacent basic switch group or the entry and exit line at one point.

[0020] As described above, the method for arranging combined turnouts in the throat area of ​​a vehicle base, further, the step of connecting the track of the basic turnout group with the track of the warehouse by a guide curve according to the angle and position coordinates of the main track and the side track, and the step of extending the track of the basic turnout group and intersecting the entry and exit line at one point also includes:

[0021] Determine whether the main track forms a turnout angle of 1 with the entry and exit line. If so, directly connect the main track with the entry and exit line. If not, offset the outermost track that forms a turnout angle of 1 with the entry and exit line by a set spacing to generate a new track.

[0022] The new track is connected to the main track of the basic switch group by a guide curve.

[0023] As described above, the method for arranging a combined turnout in the throat area of ​​a vehicle base, further, the step after connecting the new track with the main track of the basic turnout group by a guide curve also includes:

[0024] It is judged whether the connection between the track of the basic turnout group, the warehouse track and the entry and exit line meets the preset conditions. If so, the connection of the throat area is completed; if not, the track of the basic turnout group is offset and reconnected with the warehouse track by the guide curve;

[0025] Repeat the above steps until the preset conditions are met to complete the connection of the throat area.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention can arrange the turnouts in the throat area of ​​the vehicle base more efficiently, regularly and automatically, making the design scheme more scientific and reasonable;

[0028] 2. The throat area of ​​the present invention is based on the principle that the end point of the circular curve of the track does not enter the level crossing. The design method of setting the end point of the circular curve at the intersection of the warehouse track and the outer edge line of the level crossing makes the length of the throat area as short as possible and the layout is compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of a left-opening basic turnout group according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of a right-opening basic turnout group according to an embodiment of the present invention;

[0032] Figure 3 This is a layout diagram of a left-opening basic turnout group in half of the throat area of ​​an embodiment of the present invention;

[0033] Figure 4 This is a layout diagram of a right-opening basic turnout group in half of the throat area of ​​an embodiment of the present invention;

[0034] Among them, 1. Basic turnout group No. 1 track (M 1，1 );2、Basic turnout group No. 2 track (M 1，2 ) ; 3. Basic turnout group No. 3 track (M 1，3 );4. Basic turnout group No. 4 track (M 1，4 ) ; 5. Turnout center; 6. Short rail between turnsouts; 7. Reference point; 8. Curve radius; 9. Tangent length; 10. Main track of basic turnout group; 11. Entry and exit lines; 12. Level crossing. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Example:

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations of the embodiments of the present invention are intended to cover non-exclusive inclusions, for example, a process, method, component, product or device that includes a series of steps or devices is not necessarily limited to those steps or devices clearly listed, but may include other steps or devices that are not clearly listed or inherent to these processes, methods, products or devices.

[0038] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly defined. In addition, unless otherwise clearly defined and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] In the first aspect, the present invention provides a structure of a combined turnout in the throat area of ​​a vehicle base, which is arranged in the throat area and includes a plurality of warehouse tracks, a plurality of throat area tracks and an entry and exit line 11, wherein the plurality of warehouse tracks are parallel to each other. One end of the plurality of throat area tracks is respectively connected to the plurality of warehouse tracks, and the other end of the plurality of throat area tracks is connected to the adjacent throat area tracks or the entry and exit line 11 to form a single turnout.

[0042] As an optional implementation, in some embodiments, a plurality of single turnouts are combined into a basic turnout group.

[0043] As an optional implementation, in some embodiments, a level crossing 12 is provided between the warehouse track and the throat area track.

[0044] Specifically, the warehouse track of the present invention refers to the track in the warehouse except the initial track, and the initial track refers to the track initially connected to the access section. The present invention connects the warehouse track with the access section line to form a plurality of single turnouts, and then groups the plurality of single turnouts into a turnout group.

[0045] In a second aspect, the present invention provides a method for arranging a combined turnout in a throat area of ​​a vehicle base, based on the structure of the combined turnout in the throat area of ​​the vehicle base, which comprises the following steps:

[0046] The plane tracks in the vehicle base are divided into a number of warehouse tracks and a number of throat area tracks; the position and angle of the entry and exit lines are determined according to the land area and shape of the vehicle base, and the entry and exit lines are connected with the warehouse tracks; a set number of throat area tracks are combined into the tracks of the basic turnout group, and the main track of the basic turnout group is determined; the angle of the main track is calculated, and the angles of the side tracks other than the main track are deduced according to the calculation results; the warehouse tracks are matched with the tracks in the basic turnout group in sequence, and the position coordinates of the main track and the side track are calculated according to the position of the level crossing and the set principle; according to the angles and position coordinates of the main track and the side track, one end of the track of the basic turnout group is connected with the warehouse track by a guide curve, and the other end of the track of the basic turnout group is extended to intersect with the track of the adjacent basic turnout group or the entry and exit line at a point.

[0047] As an optional implementation, in some embodiments, according to the angle and position coordinates of the main track and the side track, the track of the basic switch group is connected with the warehouse track by a guide curve, and the step of extending the other end of the track of the basic switch group and intersecting the entry and exit line at one point also includes the following steps:

[0048] Determine whether the main track forms a turnout angle of 1 with the entry and exit line. If so, connect directly to the entry and exit line. If not, offset the outermost track that forms a turnout angle of 1 with the entry and exit line by the set spacing to generate a new track. Connect the new track with the main track of the basic turnout group by a guide curve.

[0049] As an optional implementation, in some embodiments, the steps after connecting the new track with the main track of the basic switch group by guide curves further include:

[0050] It is judged whether the connection between the track of the basic switch group and the warehouse track and the entry and exit line meets the preset conditions. If so, the connection of the throat area is completed. If not, the track of the basic switch group is offset and reconnected with the warehouse track by the guide curve; the above steps are repeated until the preset conditions are met to complete the connection of the throat area.

[0051] Specifically, in order to achieve the shortest possible length of the throat area and a more scientific and reasonable arrangement, the arrangement method of the present invention is understood through the following embodiments.

[0052] See also Figure 3 The layout method is specifically described using the layout diagram of the left-opening basic turnout group in half the throat area.

[0053] First, connect the entry and exit lines to the L-1 track.

[0054] Then, three single turnouts are combined into a basic turnout group. The basic turnout group can have four schemes (the mirror image relationship is regarded as one) by combining different single turnout combinations. Through analysis, it is found that Figure 1 and Figure 2 The throat area connected by the left-opening basic turnout group and the right-opening basic turnout group has advantages in intensive land use. The left-opening basic turnout group is a turnout group with the last two groups of turnouts being left-opening turnouts, and the right-opening basic turnout group is a turnout group with the last two groups of turnouts being right-opening turnouts. Take the basic turnout group as a basic unit, such as Figure 1 Determine the angle of the main track of the basic turnout group, and calculate the angles of the other side tracks by inferring the angle of the main track of the basic turnout group, so as to complete the calculation of the angles of all tracks in the throat area.

[0055] The angle calculation formula of the track is: i，1 =i-1,n i，2 =i,ni，3 =i,n i，4 =i+1;

[0056] Where n i，j is the multiple of the turnout angle of the track in the turnout group, i is the basic turnout group number, and j is the track number in the basic turnout group.

[0057] Next, the endpoint of the throat curve does not enter the level crossing, and the intersection of the warehouse track and the outer edge of the level crossing is used as the reference point. Therefore, it is stipulated that the endpoint of the curve connecting the warehouse track and the turnout is at the reference point, and the warehouse tracks L-1, L-2...L-20 correspond to the tracks 1, 2, 3, and 4 in the turnout group 1, 2...4 in order from top to bottom. According to this principle, the tangent length formula and the trigonometric function coordinate formula are used to calculate and determine the position coordinates of the main track and the side track of the turnout, such as Figure 3 shown.

[0058] The formula for tangent length is: tan(α*n / 2)*r;

[0059] Where α is the turnout angle, r is the curve radius, n is the multiple of the turnout angle, and n≥1.

[0060] According to the calculated angles and position coordinates of the turnout straight track and the side track, the turnout track is connected with the corresponding warehouse track by guide curve.

[0061] At the same time, the other end of the turnout track is extended, and the intersection is the turnout center to complete the preliminary layout of the turnout.

[0062] Among them, M i，1 Track extended to the entry and exit line, M i，1 Track is the main track in the basic turnout group, M i，2 、M i，3 Track extended to M i，1 stock channel, M i，4 Track extended to M i，3 Stock Road. M i，j It represents the track in the switch group, i represents the switch group number (i≥2), and j represents the track number in the switch group.

[0063] When i≥2, the outermost track with an angle of 1 times the turnout from the entry and exit line is offset by 6m and 12m respectively to generate a new track, which is extended to intersect with the entry and exit line; in particular, the offset distance of 6m is mainly based on the 2.5m limit distance on one side of the line and the 1m width of the structural column. This is only the data of this embodiment, and the specific offset spacing can be determined according to the project requirements. Further, M 3,1 Track and new track guide curve with offset of 6m; M 4，1 The track and the new track guide curve with an offset of 12m.

[0064] When i ≥ 4, it branches off from the track end point L of the guide curve of the track, where L = b + L', and is connected to M i-1，1 track guide curve. When it is judged that the length of the B end of the turnout is less than L, the frog moves backward with a step length of 0.1 m until the length of the B end ≥ L, and it satisfies that the minimum straight-line segment length between turnouts ≥ a + b + L''' and M i，1 track turnout. When it is judged that the length of the A end of the track turnout ≥ a + L'', if it does not meet the requirement, then M i，1 the track is connected to the guide curve of the next offset track. i，1

[0065] In the formula, a is the length of the A end of the turnout, b is the length of the B end of the turnout, L' is the minimum straight-line segment length from the B end of the turnout to the circular curve, L'' is the minimum straight-line segment length from the A end of the turnout to the circular curve, and L''' is the minimum straight-line segment length between turnouts.

[0066] Finally, it is judged whether M i，2 and M i，4 the length of the track (B end of the turnout) ml. When ml ≥ L, the connection of the throat area is completed; when ml < L, move the corresponding frog of M i，2 or M i，4 backward along the straight track of the turnout with a step length of 0.1 m until ml ≥ L, and reconnect to the guide curve of the warehouse track, and the connection of the throat area is completed.

[0067] In the formula, L = b + L', b is the length of the B end of the turnout, and L' is the minimum straight-line segment length from the B end of the turnout to the circular curve.

[0068] Figure 3 To sum up, the present invention is designed on the principle of minimizing the length of the throat area. As shown in Figure 4 and when comparing the lengths of the throat areas arranged by the left-opening basic turnout group and the right-opening basic turnout group, when the number of tracks in the warehouse ≤ 80, under the structure and layout method of the present invention, when a ≤ 16 and a % 4 = 0, the length of the throat area arranged by the left-opening basic turnout group is shorter; when a ≤ 16 and a % 4 = 2, the length of the throat area arranged by the right-opening basic turnout group is shorter; when 16 < a ≤ 20, the length of the throat area arranged by the left-opening basic turnout group is shorter. Among them, a % 4 represents the remainder obtained by dividing a by 4, and a represents the number of tracks connecting the warehouse. At present, this embodiment only provides the case where the number of warehouse tracks is an even number.

[0069] ​In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0070] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable ordinary technicians in the field to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made based on the essence of the content of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined turnout structure in the throat area of ​​a vehicle base, arranged in the throat area, characterized in that: include: Several warehouse tracks arranged parallel to each other; Several throat areas; Entry and exit segment lines; Among them, one end of several of the throat area tracks is connected to several of the warehouse tracks respectively, and the other end of several of the throat area tracks is connected to the adjacent throat area tracks or the entry and exit lines to form a single turnout.

2. The structure of the combined turnout in the throat area of ​​the vehicle base according to claim 1 is characterized in that: A plurality of the single turnouts are combined into a basic turnout group.

3. The structure of the combined turnout in the throat area of ​​the vehicle base according to claim 1 is characterized in that: A level crossing is arranged between the warehouse track and the throat area track.

4. A method for arranging combined turnouts in the throat area of ​​a vehicle base, characterized in that: The structure of the combined turnout in the throat area of ​​the vehicle base according to any one of claims 1 to 3 comprises the following steps: Divide the horizontal tracks in the vehicle base into several warehouse tracks and several throat area tracks; Determine the position and angle of the entry and exit line according to the area and shape of the vehicle base, and connect the entry and exit line with the warehouse track; Combining a set number of the throat area tracks into a track of a basic turnout group, and determining a main track of the basic turnout group; Calculating the angle of the main track, and deducing the angles of side tracks other than the main track according to the calculation result; The warehouse track is matched with the track in the basic turnout group in sequence, and the position coordinates of the main track and the side track are calculated according to the position of the level crossing and the set principle; According to the angle and position coordinates of the main track and the side track, one end of the track of the basic switch group is connected to the warehouse track by a guide curve, and the other end of the track of the basic switch group extends to intersect with the track of the adjacent basic switch group or the entry and exit line at one point.

5. The method for arranging combined turnouts in the throat area of ​​a vehicle base according to claim 4, characterized in that: The step of connecting the track of the basic turnout group with the storehouse track by a guide curve according to the angle and position coordinates of the main track and the side track, and the step of extending the other end of the track of the basic turnout group and intersecting the entry and exit line at one point also includes: Determine whether the main track forms a turnout angle of 1 with the entry and exit line. If so, directly connect the main track with the entry and exit line. If not, offset the outermost track that forms a turnout angle of 1 with the entry and exit line by a set spacing to generate a new track. The new track is connected to the main track of the basic switch group by a guide curve.

6. The method for arranging combined turnouts in the throat area of ​​a vehicle base according to claim 5, characterized in that: The step after connecting the new track with the main track of the basic turnout group by guide curve also includes: It is judged whether the connection between the track of the basic turnout group, the warehouse track and the entry and exit line meets the preset conditions. If so, the connection of the throat area is completed; if not, the track of the basic turnout group is offset and reconnected with the warehouse track by the guide curve; Repeat the above steps until the preset conditions are met to complete the connection of the throat area.

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